Hot-Reloading Refactor

Signed-off-by: Jason Volk <jason@zemos.net>

Cargo.toml

@@ -1,115 +1,95 @@
-[package]
+#cargo-features = ["profile-rustflags"]
-# TODO: when can we rename to conduwuit?
+
-name = "conduit"
+[workspace]
+resolver = "2"
+members = ["src/*"]
+default-members = ["src/*"]
+
+[workspace.package]
 description = "a very cool fork of Conduit, a Matrix homeserver written in Rust"
 license = "Apache-2.0"
 authors = [
     "strawberry <strawberry@puppygock.gay>",
     "timokoesters <timo@koesters.xyz>",
 ]
+version = "0.3.4"
+edition = "2021"
+# See also `rust-toolchain.toml`
+rust-version = "1.77.0"
 homepage = "https://conduwuit.puppyirl.gay/"
 repository = "https://github.com/girlbossceo/conduwuit"
 readme = "README.md"
-version = "0.3.4"
-edition = "2021"
 
-# See also `rust-toolchain.toml`
-rust-version = "1.77.0"
-
-[dependencies]
 # 1.1.17 seems broken on nix from a permission error?
-libz-sys = "=1.1.16"
+[workspace.dependencies.libz-sys]
+version = "=1.1.16"
 
-console-subscriber = { version = "0.2", optional = true }
+[workspace.dependencies.sanitize-filename]
+version = "0.5.0"
 
-infer = { version = "0.15", default-features = false }
+[workspace.dependencies.infer]
+version = "0.15"
+default-features = false
 
-# for hot lib reload
+[workspace.dependencies.jsonwebtoken]
-hot-lib-reloader = { version = "^0.7", optional = true }
+version = "9.3.0"
 
-# Used for secure identifiers
+[workspace.dependencies.base64]
-rand = "0.8.5"
+version = "0.22.1"
-
-# Used for conduit::Error type
-thiserror = "1.0.60"
-
-# Used to encode server public key
-base64 = "0.22.1"
-
-# Used when hashing the state
-ring = "0.17.8"
-
-# Used to find matching events for appservices
-regex = "1.10.4"
-
-# Used to load forbidden room/user regex from config
-serde_regex = "1.1.0"
-
-# Used to make working with iterators easier, was already a transitive depdendency
-itertools = "0.12.1"
-
-# jwt jsonwebtokens
-jsonwebtoken = "9.3.0"
-
-# Used for ruma wrapper
-serde_html_form = "0.2.6"
 
 # used for TURN server authentication
-hmac = "0.12.1"
+[workspace.dependencies.hmac]
-sha-1 = "0.10.1"
+version = "0.12.1"
+
+[workspace.dependencies.sha-1]
+version = "0.10.1"
 
 # used for checking if an IP is in specific subnets / CIDR ranges easier
-ipaddress = "0.1.3"
+[workspace.dependencies.ipaddress]
+version = "0.1.3"
 
-# to get the client IP address of requests
+[workspace.dependencies.rand]
-#axum-client-ip = "0.4.2"
+version = "0.8.5"
 
-# to parse user-friendly time durations in admin commands
-cyborgtime = "2.1.1"
-
-# all the web/HTTP dependencies
 # Used for the http request / response body type for Ruma endpoints used with reqwest
-bytes = "1.6.0"
+[workspace.dependencies.bytes]
-http = "1.1.0"
+version = "1.6.0"
-http-body-util = "0.1.1"
 
-# used to replace the channels of the tokio runtime
+[workspace.dependencies.http-body-util]
-loole = "0.3.0"
+version = "0.1.1"
 
-# Validating urls in config, was already a transitive dependency
+[workspace.dependencies.http]
-url = { version = "2.5.0", features = ["serde"] }
+version = "1.1.0"
 
-async-trait = "0.1.80"
+[workspace.dependencies.regex]
+version = "1.10.4"
 
-lru-cache = "0.1.2"
+[workspace.dependencies.axum]
-sanitize-filename = "0.5.0"
-
-# standard date and time tools
-[dependencies.chrono]
-version = "0.4.38"
-features = ["alloc"]
-default-features = false
-
-# Web framework
-[dependencies.axum]
 version = "0.7.5"
 default-features = false
-features = ["form", "http1", "http2", "json", "matched-path"]
+features = [
+	"form",
+	"http1",
+	"http2",
+	"json",
+	"matched-path",
+	"tokio",
+]
 
-[dependencies.axum-extra]
+[workspace.dependencies.axum-extra]
 version = "0.9.3"
 default-features = false
 features = ["typed-header"]
 
-[dependencies.axum-server]
+[workspace.dependencies.axum-server]
 version = "0.6.0"
 features = ["tls-rustls"]
 
-[dependencies.tower]
+[workspace.dependencies.tower]
 version = "0.4.13"
 features = ["util"]
 
-[dependencies.tower-http]
+[workspace.dependencies.tower-http]
 version = "0.5.2"
 features = [
     "add-extension",
@@ -121,153 +101,170 @@ features = [
     "catch-panic",
 ]
 
-[dependencies.hyper]
+[workspace.dependencies.reqwest]
-version = "1.3.1"
-features = ["server", "http1", "http2"]
-
-[dependencies.hyper-util]
-version = "0.1.3"
-
-[dependencies.reqwest]
 version = "0.12.4"
 default-features = false
-features = ["rustls-tls-native-roots", "socks", "hickory-dns"]
+features = [
+	"rustls-tls-native-roots",
+	"socks",
+	"hickory-dns",
+]
 
-# all the serde stuff
+[workspace.dependencies.serde]
-# Used for pdu definition
-[dependencies.serde]
 version = "1.0.201"
 features = ["rc"]
-# Used for appservice registration files
+
-[dependencies.serde_yaml]
+[workspace.dependencies.serde_json]
-version = "0.9.34"
-# Used for ruma wrapper
-[dependencies.serde_json]
 version = "1.0.117"
 features = ["raw_value"]
 
+# Used for appservice registration files
+[workspace.dependencies.serde_yaml]
+version = "0.9.34"
+
+# Used to load forbidden room/user regex from config
+[workspace.dependencies.serde_regex]
+version = "1.1.0"
+
+# Used for ruma wrapper
+[workspace.dependencies.serde_html_form]
+version = "0.2.6"
 
 # Used for password hashing
-[dependencies.argon2]
+[workspace.dependencies.argon2]
 version = "0.5.3"
 features = ["alloc", "rand"]
 default-features = false
 
 # Used to generate thumbnails for images
-[dependencies.image]
+[workspace.dependencies.image]
 version = "0.25.1"
 default-features = false
-features = ["jpeg", "png", "gif", "webp"]
+features = [
+	"jpeg",
+	"png",
+	"gif",
+	"webp",
+]
 
 # logging
-[dependencies.log]
+[workspace.dependencies.log]
 version = "0.4.21"
 default-features = false
-[dependencies.tracing]
+[workspace.dependencies.tracing]
 version = "0.1.40"
 default-features = false
-[dependencies.tracing-subscriber]
+[workspace.dependencies.tracing-subscriber]
 version = "0.3.18"
 features = ["env-filter"]
 
-# optional SHA256 media keys feature
-[dependencies.sha2]
-version = "0.10.8"
-optional = true
-
-# optional opentelemetry, performance measurements, flamegraphs, etc for performance measurements and monitoring
-[dependencies.opentelemetry]
-version = "0.21.0"
-optional = true
-[dependencies.tracing-flame]
-version = "0.2.0"
-optional = true
-[dependencies.tracing-opentelemetry]
-version = "0.22.0"
-optional = true
-[dependencies.opentelemetry_sdk]
-version = "0.21.2"
-optional = true
-features = ["rt-tokio"]
-[dependencies.opentelemetry-jaeger]
-version = "0.20.0"
-optional = true
-features = ["rt-tokio"]
-
-# optional sentry metrics for crash/panic reporting
-[dependencies.sentry]
-version = "0.32.3"
-optional = true
-default-features = false
-features = [
-    "backtrace",
-    "contexts",
-    "debug-images",
-    "panic",
-    "rustls",
-    "tower",
-    "tower-http",
-    "tracing",
-    "reqwest",
-    "log",
-]
-[dependencies.sentry-tracing]
-version = "0.32.3"
-optional = true
-[dependencies.sentry-tower]
-version = "0.32.3"
-optional = true
-
-# optional jemalloc usage
-[dependencies.tikv-jemalloc-sys]
-version = "0.5.4"
-optional = true
-default-features = false
-features = ["stats", "unprefixed_malloc_on_supported_platforms"]
-[dependencies.tikv-jemallocator]
-version = "0.5.4"
-optional = true
-default-features = false
-features = ["stats", "unprefixed_malloc_on_supported_platforms"]
-[dependencies.tikv-jemalloc-ctl]
-version = "0.5.4"
-optional = true
-default-features = false
-features = ["use_std"]
-
 # for URL previews
-[dependencies.webpage]
+[workspace.dependencies.webpage]
 version = "2.0.1"
 default-features = false
 
-# to support multiple variations of setting a config option
-[dependencies.either]
-version = "1.11.0"
-features = ["serde"]
-
-# to listen on both HTTP and HTTPS if listening on TLS dierctly from conduwuit for complement or sytest
-[dependencies.axum-server-dual-protocol]
-version = "0.6"
-optional = true
-
 # used for conduit's CLI and admin room command parsing
-[dependencies.clap]
+[workspace.dependencies.clap]
 version = "4.5.4"
 default-features = false
-features = ["std", "derive", "help", "usage", "error-context", "string"]
+features = [
+	"std",
+	"derive",
+	"help",
+	"usage",
+	"error-context",
+	"string",
+]
 
-[dependencies.futures-util]
+[workspace.dependencies.futures-util]
 version = "0.3.30"
 default-features = false
 
+[workspace.dependencies.tokio]
+version = "1.37.0"
+features = [
+	"fs",
+	"net",
+	"macros",
+	"sync",
+	"signal",
+	"time",
+	"rt-multi-thread",
+	"io-util",
+]
+
+[workspace.dependencies.libloading]
+version = "0.8.3"
+
+# Validating urls in config, was already a transitive dependency
+[workspace.dependencies.url]
+version = "2.5.0"
+features = ["serde"]
+
+# standard date and time tools
+[workspace.dependencies.chrono]
+version = "0.4.38"
+features = ["alloc"]
+default-features = false
+
+[workspace.dependencies.hyper]
+version = "1.3.1"
+features = [
+	"server",
+	"http1",
+	"http2",
+]
+
+[workspace.dependencies.hyper-util]
+version = "0.1.3"
+
+# to support multiple variations of setting a config option
+[workspace.dependencies.either]
+version = "1.11.0"
+features = ["serde"]
+
 # Used for reading the configuration from conduwuit.toml & environment variables
-[dependencies.figment]
+[workspace.dependencies.figment]
 version = "0.10.18"
 features = ["env", "toml"]
 
+[workspace.dependencies.hickory-resolver]
+version = "0.24.1"
+default-features = false
+
+# Used for conduit::Error type
+[workspace.dependencies.thiserror]
+version = "1.0.60"
+
+# Used when hashing the state
+[workspace.dependencies.ring]
+version = "0.17.8"
+
+# Used to make working with iterators easier, was already a transitive depdendency
+[workspace.dependencies.itertools]
+version = "0.12.1"
+
+# to parse user-friendly time durations in admin commands
+#TODO: overlaps chrono?
+[workspace.dependencies.cyborgtime]
+version = "2.1.1"
+
+# used to replace the channels of the tokio runtime
+[workspace.dependencies.loole]
+version = "0.3.0"
+
+[workspace.dependencies.async-trait]
+version = "0.1.80"
+
+[workspace.dependencies.lru-cache]
+version = "0.1.2"
+
+[workspace.dependencies.num_cpus]
+version = "1.16.0"
+
 # Used for matrix spec type definitions and helpers
-[dependencies.ruma]
+[workspace.dependencies.ruma]
-git = "https://github.com/girlbossceo/ruma"
+git = "https://github.com/girlbossceo/ruwuma"
 branch = "conduwuit-changes"
 features = [
     "compat",
@@ -292,60 +289,128 @@ features = [
     "unstable-extensible-events",
 ]
 
-[dependencies.ruma-identifiers-validation]
+[workspace.dependencies.ruma-identifiers-validation]
-git = "https://github.com/girlbossceo/ruma"
+git = "https://github.com/girlbossceo/ruwuma"
 branch = "conduwuit-changes"
 
-[dependencies.hickory-resolver]
+[workspace.dependencies.rust-rocksdb]
-version = "0.24.1"
+path = "deps/rust-rocksdb"
+package = "rust-rocksdb-uwu"
+features = [
+	"multi-threaded-cf",
+	"mt_static",
+	"snappy",
+	"lz4",
+	"zstd",
+	"zlib",
+	"bzip2",
+]
+
+[workspace.dependencies.zstd]
+version = "0.13.1"
+
+# to listen on both HTTP and HTTPS if listening on TLS dierctly from conduwuit for complement or sytest
+[workspace.dependencies.axum-server-dual-protocol]
+version = "0.6"
+
+# optional SHA256 media keys feature
+[workspace.dependencies.sha2]
+version = "0.10.8"
+
+# optional opentelemetry, performance measurements, flamegraphs, etc for performance measurements and monitoring
+[workspace.dependencies.opentelemetry]
+version = "0.21.0"
+
+[workspace.dependencies.tracing-flame]
+version = "0.2.0"
+
+[workspace.dependencies.tracing-opentelemetry]
+version = "0.22.0"
+
+[workspace.dependencies.opentelemetry_sdk]
+version = "0.21.2"
+features = ["rt-tokio"]
+
+[workspace.dependencies.opentelemetry-jaeger]
+version = "0.20.0"
+features = ["rt-tokio"]
+
+# optional sentry metrics for crash/panic reporting
+[workspace.dependencies.sentry]
+version = "0.32.3"
 default-features = false
+features = [
+    "backtrace",
+    "contexts",
+    "debug-images",
+    "panic",
+    "rustls",
+    "tower",
+    "tower-http",
+    "tracing",
+    "reqwest",
+    "log",
+]
 
-[dependencies.rust-rocksdb]
+[workspace.dependencies.sentry-tracing]
-git = "https://github.com/zaidoon1/rust-rocksdb"
+version = "0.32.3"
-branch = "master"
+[workspace.dependencies.sentry-tower]
-optional = true
+version = "0.32.3"
-default-features = true
-features = ["multi-threaded-cf", "zstd"]
 
-[dependencies.rusqlite]
+# optional jemalloc usage
+[workspace.dependencies.tikv-jemalloc-sys]
+version = "0.5.4"
+default-features = false
+features = ["unprefixed_malloc_on_supported_platforms"]
+[workspace.dependencies.tikv-jemallocator]
+version = "0.5.4"
+default-features = false
+features = ["unprefixed_malloc_on_supported_platforms"]
+[workspace.dependencies.tikv-jemalloc-ctl]
+version = "0.5.4"
+default-features = false
+features = ["use_std"]
+
+[workspace.dependencies.rusqlite]
 git = "https://github.com/rusqlite/rusqlite"
 #branch = "master"
 rev = "e00b626e2b1c67347d789fb7f600281705c89381"
-optional = true
 features = ["bundled"]
 
 # used only by rusqlite
-[dependencies.parking_lot]
+[workspace.dependencies.parking_lot]
 version = "0.12.2"
-optional = true
 
 # used only by rusqlite
-[dependencies.thread_local]
+[workspace.dependencies.thread_local]
 version = "1.1.8"
-optional = true
 
-# used only by rusqlite and rust-rocksdb
+[workspace.dependencies.tokio-metrics]
-[dependencies.num_cpus]
+version = "0.3.1"
-version = "1.16.0"
+default-features = false
 
-[dependencies.tokio]
+[workspace.dependencies.console-subscriber]
-version = "1.37.0"
+version = "0.2"
-features = ["fs", "macros", "sync", "signal"]
 
-# *nix-specific dependencies
+[workspace.dependencies.nix]
-[target.'cfg(unix)'.dependencies]
+version = "0.28.0"
-nix = { version = "0.28.0", features = ["resource"] }
+features = ["resource"]
-sd-notify = { version = "0.4.1", optional = true }    # systemd is only available/relevant on *nix platforms
 
+[workspace.dependencies.sd-notify]
+version = "0.4.1"
 
-[target.'cfg(all(not(target_env = "msvc"), target_os = "linux"))'.dependencies]
+[workspace.dependencies.hardened_malloc-rs]
-hardened_malloc-rs = { version = "0.1.2", optional = true, features = [
+version = "0.1.2"
+default-features = false
+features = [
 	"static",
 	"gcc",
 	"light",
-], default-features = false }
+]
-#hardened_malloc-rs = { optional = true, features = ["static","clang","light"], path = "../hardened_malloc-rs", default-features = false }
 
+#
+# Patches
+#
 
 # backport of [https://github.com/tokio-rs/tracing/pull/2956] to the 0.1.x branch of tracing.
 # we can switch back to upstream if #2956 is merged and backported in the upstream repo.
@@ -359,166 +424,213 @@ branch = "tracing-subscriber/env-filter-clone-0.1.x-backport"
 git = "https://github.com/girlbossceo/tracing"
 branch = "tracing-subscriber/env-filter-clone-0.1.x-backport"
 
-[features]
-default = [
-    "backend_rocksdb",
-    "systemd",
-    "element_hacks",
-    "sentry_telemetry",
-    "gzip_compression",
-    "brotli_compression",
-    "zstd_compression",
-    "release_max_log_level",
-    "io_uring",
-]
-backend_sqlite = ["sqlite"]
-backend_rocksdb = ["rocksdb"]
-rocksdb = ["dep:rust-rocksdb"]
-jemalloc = [
-    "dep:tikv-jemalloc-sys",
-    "dep:tikv-jemalloc-ctl",
-    "dep:tikv-jemallocator",
-    "rust-rocksdb/jemalloc",
-]
-jemalloc_prof = ["tikv-jemalloc-sys/profiling"]
-sqlite = ["dep:rusqlite", "dep:parking_lot", "dep:thread_local"]
-systemd = ["dep:sd-notify"]
-sentry_telemetry = ["dep:sentry", "dep:sentry-tracing", "dep:sentry-tower"]
-
-gzip_compression = ["tower-http/compression-gzip", "reqwest/gzip"]
-zstd_compression = ["tower-http/compression-zstd"]
-brotli_compression = ["tower-http/compression-br", "reqwest/brotli"]
-
-sha256_media = ["dep:sha2"]
-io_uring = ["rust-rocksdb/io-uring"]
-axum_dual_protocol = ["dep:axum-server-dual-protocol"]
-
-perf_measurements = [
-    "dep:opentelemetry",
-    "dep:tracing-flame",
-    "dep:tracing-opentelemetry",
-    "dep:opentelemetry_sdk",
-    "dep:opentelemetry-jaeger",
-]
-
-# enable the tokio_console server
-# incompatible with release_max_log_level
-tokio_console = ["dep:console-subscriber", "tokio/tracing"]
-
-hot_reload = ["dep:hot-lib-reloader"]
-
-hardened_malloc = ["dep:hardened_malloc-rs"]
-
-# increases performance, reduces build times, and reduces binary size by not compiling or
-# genreating code for log level filters that users will generally not use (debug and trace) only in release builds
 #
-# the expense is obviously losing those log level filters for usage at runtime. debug builds will still have all log levels
+# Our crates
-release_max_log_level = [
-    "tracing/max_level_trace",
-    "tracing/release_max_level_info",
-    "log/max_level_trace",
-    "log/release_max_level_info",
-]
-
-# developer feature useful only in debug builds.
-dev_release_log_level = []
-
-# client/server interopability hacks
 #
-## element has various non-spec compliant behaviour
-element_hacks = []
 
+[workspace.dependencies.conduit-router]
+package = "conduit_router"
+path = "src/router"
+default-features = false
 
-[package.metadata.deb]
+[workspace.dependencies.conduit-admin]
-name = "conduwuit"
+package = "conduit_admin"
-maintainer = "strawberry <strawberry@puppygock.gay>"
+path = "src/admin"
-copyright = "2024, strawberry <strawberry@puppygock.gay>"
+default-features = false
-license-file = ["LICENSE", "3"]
-depends = "$auto, ca-certificates"
-extended-description = """\
-a cool hard fork of Conduit, a Matrix homeserver written in Rust"""
-section = "net"
-priority = "optional"
-assets = [
-    [
-        "debian/README.md",
-        "usr/share/doc/conduwuit/README.Debian",
-        "644",
-    ],
-    [
-        "README.md",
-        "usr/share/doc/conduwuit/",
-        "644",
-    ],
-    [
-        "target/release/conduwuit",
-        "usr/sbin/conduwuit",
-        "755",
-    ],
-    [
-        "conduwuit-example.toml",
-        "etc/conduwuit/conduwuit.toml",
-        "640",
-    ],
-]
-conf-files = ["/etc/conduwuit/conduwuit.toml"]
-maintainer-scripts = "debian/"
-systemd-units = { unit-name = "conduwuit", start = false }
 
+[workspace.dependencies.conduit-api]
+package = "conduit_api"
+path = "src/api"
+default-features = false
 
-[profile.dev]
+[workspace.dependencies.conduit-service]
-#debug = 0
+package = "conduit_service"
-lto = 'off'
+path = "src/service"
-codegen-units = 512
+default-features = false
-incremental = true
-overflow-checks = true
-#panic = "abort"
 
-# seems to speed up continuous debug compilations
+[workspace.dependencies.conduit-database]
-[profile.dev.build-override]
+package = "conduit_database"
-opt-level = 3
+path = "src/database"
-[profile.dev.package."*"] # external dependencies
+default-features = false
-opt-level = 1
+
-[profile.dev.package."tokio"]
+[workspace.dependencies.conduit-core]
-opt-level = 3
+package = "conduit_core"
+path = "src/core"
+default-features = false
+
+###############################################################################
+#
+# Release profiles
+#
 
-# default release profile
 [profile.release]
-lto = 'thin'
-incremental = false
-opt-level = 3
 strip = "symbols"
-control-flow-guard = true # Windows only
+lto = "thin"
-debug = 0
 
 # release profile with debug symbols
 [profile.release-debuginfo]
 inherits = "release"
-strip = "none"
 debug = "full"
+strip = "none"
 
-
-# high performance release profile which uses fat LTO across all crates, 1 codegen unit, max opt-level, and optimises across all crates
 [profile.release-high-perf]
 inherits = "release"
-lto = 'fat'
+lto = "fat"
 codegen-units = 1
 panic = "abort"
 
-# For releases also try to max optimizations for dependencies:
+# do not use without profile-rustflags enabled
-[profile.release-high-perf.build-override]
+[profile.release-max-perf]
-debug = 0
+inherits = "release"
-opt-level = 3
+strip = "symbols"
+lto = "fat"
+#rustflags = [
+#	'-Ctarget-cpu=native',
+#	'-Ztune-cpu=native',
+#	'-Ctarget-feature=+crt-static',
+#	'-Crelocation-model=static',
+#	'-Ztls-model=local-exec',
+#	'-Zinline-in-all-cgus=true',
+#	'-Zinline-mir=true',
+#	'-Zmir-opt-level=3',
+#	'-Clink-arg=-fuse-ld=mold',
+#	'-Clink-arg=-Wl,--threads',
+#	'-Clink-arg=-Wl,--gc-sections',
+#	'-Ztime-passes',
+#	'-Ztime-llvm-passes',
+#]
+
+[profile.release-max-perf.build-override]
+inherits = "release-max-perf"
+opt-level = 0
+#rustflags = [
+#	'-Ctarget-feature=-crt-static',
+#]
+
+[profile.bench]
+inherits = "release"
+#rustflags = [
+#	"-Cremark=all",
+#	'-Ztime-passes',
+#	'-Ztime-llvm-passes',
+#]
+
+###############################################################################
+#
+# Developer profile
+#
+
+# To enable hot-reloading:
+# 1. Uncomment all of the rustflags here.
+# 2. Uncomment crate-type=dylib in src/*/Cargo.toml and deps/rust-rocksdb/Cargo.toml
+# 2. Build with the 'mods' feature.
+#
+# opt-level, mir-opt-level, validate-mir are not known to interfere with reloading
+# and can be raised if build times are tolerable.
+
+[profile.dev]
+debug = 1
+opt-level = 0
+panic = "unwind"
+debug-assertions = true
+incremental = true
+codegen-units = 64
+rpath = true
+#rustflags = [
+#	'-Ztime-passes',
+#	'-Zmir-opt-level=0',
+#	'-Zvalidate-mir=false',
+#	'-Ztls-model=global-dynamic',
+#	'-Cprefer-dynamic=true',
+#	'-Zstaticlib-prefer-dynamic=true',
+#	'-Zstaticlib-allow-rdylib-deps=true',
+#	'-Zpacked-bundled-libs=false',
+#	'-Zplt=true',
+#	'-Crpath=true',
+#	'-Clink-arg=-Wl,--as-needed',
+#	'-Clink-arg=-Wl,--allow-shlib-undefined',
+#	'-Clink-arg=-Wl,-z,keep-text-section-prefix',
+#	'-Clink-arg=-Wl,-z,lazy',
+#]
+
+[profile.dev.package.conduit_core]
+inherits = "dev"
+incremental = false
+#rustflags = [
+#	'-Ztime-passes',
+#	'-Zmir-opt-level=0',
+#	'-Ztls-model=initial-exec',
+#	'-Cprefer-dynamic=true',
+#	'-Zstaticlib-prefer-dynamic=true',
+#	'-Zstaticlib-allow-rdylib-deps=true',
+#	'-Zpacked-bundled-libs=false',
+#	'-Zplt=true',
+#	'-Clink-arg=-Wl,--as-needed',
+#	'-Clink-arg=-Wl,--allow-shlib-undefined',
+#	'-Clink-arg=-Wl,-z,lazy',
+#	'-Clink-arg=-Wl,-z,unique',
+#	'-Clink-arg=-Wl,-z,nodlopen',
+#	'-Clink-arg=-Wl,-z,nodelete',
+#]
+
+[profile.dev.package.conduit]
+inherits = "dev"
+incremental = false
+#rustflags = [
+#	'-Ztime-passes',
+#	'-Zmir-opt-level=0',
+#	'-Zvalidate-mir=false',
+#	'-Ztls-model=global-dynamic',
+#	'-Cprefer-dynamic=true',
+#	'-Zexport-executable-symbols=true',
+#	'-Zplt=true',
+#	'-Crpath=true',
+#	'-Clink-arg=-Wl,--as-needed',
+#	'-Clink-arg=-Wl,--allow-shlib-undefined',
+#	'-Clink-arg=-Wl,--export-dynamic',
+#	'-Clink-arg=-Wl,-z,lazy',
+#]
+
+[profile.dev.package.rust-rocksdb-uwu]
+inherits = "dev"
+debug = 'limited'
+incremental = false
 codegen-units = 1
+opt-level = 'z'
+#rustflags = [
+#	'-Ztls-model=initial-exec',
+#	'-Cprefer-dynamic=true',
+#	'-Zstaticlib-prefer-dynamic=true',
+#	'-Zstaticlib-allow-rdylib-deps=true',
+#	'-Zpacked-bundled-libs=true',
+#	'-Zplt=true',
+#	'-Clink-arg=-Wl,--no-as-needed',
+#	'-Clink-arg=-Wl,--allow-shlib-undefined',
+#	'-Clink-arg=-Wl,-z,lazy',
+#	'-Clink-arg=-Wl,-z,nodlopen',
+#	'-Clink-arg=-Wl,-z,nodelete',
+#]
 
-[profile.release-high-perf.package."*"]
+[profile.dev.package.'*']
-debug = 0
+inherits = "dev"
-opt-level = 3
+debug = 'limited'
+incremental = false
 codegen-units = 1
+opt-level = 'z'
+#rustflags = [
+#	'-Ztls-model=global-dynamic',
+#	'-Cprefer-dynamic=true',
+#	'-Zstaticlib-prefer-dynamic=true',
+#	'-Zstaticlib-allow-rdylib-deps=true',
+#	'-Zpacked-bundled-libs=true',
+#	'-Zplt=true',
+#	'-Clink-arg=-Wl,--as-needed',
+#	'-Clink-arg=-Wl,-z,lazy',
+#	'-Clink-arg=-Wl,-z,nodelete',
+#]
 
-
+[profile.test]
-[lints]
+incremental = false
-workspace = true
 
 [workspace.lints.rust]
 missing_abi = "warn"
@@ -543,7 +655,6 @@ unused_braces = "allow"
 # some sadness
 missing_docs = "allow"
 
-
 [workspace.lints.clippy]
 # pedantic = "warn"
 
@@ -615,7 +726,6 @@ unnecessary_box_returns = "warn"
 map_unwrap_or = "warn"
 implicit_clone = "warn"
 match_wildcard_for_single_variants = "warn"
-unnecessary_wraps = "warn"
 match_same_arms = "warn"
 ignored_unit_patterns = "warn"
 redundant_else = "warn"
@@ -650,6 +760,7 @@ unwrap_used = "allow"
 expect_used = "allow"
 if_then_some_else_none = "allow"
 let_underscore_must_use = "allow"
+let_underscore_future = "allow"
 map_err_ignore = "allow"
 missing_docs_in_private_items = "allow"
 multiple_inherent_impl = "allow"
@@ -657,3 +768,4 @@ error_impl_error = "allow"
 string_add = "allow"
 string_slice = "allow"
 ref_patterns = "allow"
+unnecessary_wraps = "allow"

deps/rust-rocksdb/Cargo.toml

@@ -0,0 +1,32 @@
+[package]
+name = "rust-rocksdb-uwu"
+version = "0.0.1"
+edition = "2021"
+
+[features]
+default = ["snappy", "lz4", "zstd", "zlib", "bzip2"]
+jemalloc = ["rust-rocksdb/jemalloc"]
+io-uring = ["rust-rocksdb/io-uring"]
+valgrind = ["rust-rocksdb/valgrind"]
+snappy = ["rust-rocksdb/snappy"]
+lz4 = ["rust-rocksdb/lz4"]
+zstd = ["rust-rocksdb/zstd"]
+zlib = ["rust-rocksdb/zlib"]
+bzip2 = ["rust-rocksdb/bzip2"]
+rtti = ["rust-rocksdb/rtti"]
+mt_static = ["rust-rocksdb/mt_static"]
+multi-threaded-cf = ["rust-rocksdb/multi-threaded-cf"]
+serde1 = ["rust-rocksdb/serde1"]
+malloc-usable-size = ["rust-rocksdb/malloc-usable-size"]
+
+[dependencies.rust-rocksdb]
+git = "https://github.com/zaidoon1/rust-rocksdb"
+branch = "master"
+default-features = false
+
+[lib]
+path = "lib.rs"
+crate-type = [
+	"rlib",
+#	"dylib"
+]

deps/rust-rocksdb/lib.rs

@@ -0,0 +1,59 @@
+pub use rust_rocksdb::*;
+
+#[link(name = "rocksdb", kind = "static")]
+extern "C" {
+	pub fn rocksdb_list_column_families();
+	pub fn rocksdb_logger_create_stderr_logger();
+	pub fn rocksdb_options_set_info_log();
+	pub fn rocksdb_get_options_from_string();
+	pub fn rocksdb_writebatch_create();
+	pub fn rocksdb_writebatch_put_cf();
+	pub fn rocksdb_writebatch_delete_cf();
+	pub fn rocksdb_iter_value();
+	pub fn rocksdb_iter_seek_to_last();
+	pub fn rocksdb_iter_seek_for_prev();
+	pub fn rocksdb_iter_seek_to_first();
+	pub fn rocksdb_iter_next();
+	pub fn rocksdb_iter_prev();
+	pub fn rocksdb_iter_seek();
+	pub fn rocksdb_iter_valid();
+	pub fn rocksdb_iter_get_error();
+	pub fn rocksdb_iter_key();
+	pub fn rocksdb_iter_destroy();
+	pub fn rocksdb_livefiles();
+	pub fn rocksdb_livefiles_count();
+	pub fn rocksdb_livefiles_destroy();
+	pub fn rocksdb_livefiles_column_family_name();
+	pub fn rocksdb_livefiles_name();
+	pub fn rocksdb_livefiles_size();
+	pub fn rocksdb_livefiles_level();
+	pub fn rocksdb_livefiles_smallestkey();
+	pub fn rocksdb_livefiles_largestkey();
+	pub fn rocksdb_livefiles_entries();
+	pub fn rocksdb_livefiles_deletions();
+	pub fn rocksdb_put_cf();
+	pub fn rocksdb_delete_cf();
+	pub fn rocksdb_get_pinned_cf();
+	pub fn rocksdb_create_column_family();
+	pub fn rocksdb_get_latest_sequence_number();
+	pub fn rocksdb_batched_multi_get_cf();
+	pub fn rocksdb_cancel_all_background_work();
+	pub fn rocksdb_repair_db();
+	pub fn rocksdb_list_column_families_destroy();
+	pub fn rocksdb_flush();
+	pub fn rocksdb_flush_wal();
+	pub fn rocksdb_open_column_families();
+	pub fn rocksdb_open_for_read_only_column_families();
+	pub fn rocksdb_open_as_secondary_column_families();
+	pub fn rocksdb_open_column_families_with_ttl();
+	pub fn rocksdb_open();
+	pub fn rocksdb_open_for_read_only();
+	pub fn rocksdb_open_with_ttl();
+	pub fn rocksdb_open_as_secondary();
+	pub fn rocksdb_write();
+	pub fn rocksdb_create_iterator_cf();
+	pub fn rocksdb_backup_engine_create_new_backup_flush();
+	pub fn rocksdb_backup_engine_options_create();
+	pub fn rocksdb_write_buffer_manager_destroy();
+	pub fn rocksdb_options_set_ttl();
+}

nix/pkgs/main/default.nix

@@ -55,7 +55,7 @@ commonAttrs = {
       include = [
         "Cargo.lock"
         "Cargo.toml"
-        "hot_lib"
+        "deps"
         "src"
       ];
     };

src/admin/Cargo.toml

@@ -0,0 +1,63 @@
+[package]
+name = "conduit_admin"
+version.workspace = true
+edition.workspace = true
+
+[lib]
+path = "mod.rs"
+crate-type = [
+	"rlib",
+#	"dylib",
+]
+
+[features]
+default = [
+	"rocksdb",
+	"io_uring",
+	"jemalloc",
+	"zstd_compression",
+	"release_max_log_level",
+]
+
+dev_release_log_level = []
+release_max_log_level = [
+	"tracing/max_level_trace",
+	"tracing/release_max_level_info",
+	"log/max_level_trace",
+	"log/release_max_level_info",
+]
+rocksdb = [
+	"dep:rust-rocksdb",
+]
+jemalloc = [
+	"rust-rocksdb/jemalloc",
+]
+io_uring = [
+	"rust-rocksdb/io-uring",
+]
+zstd_compression = [
+	"rust-rocksdb/zstd",
+]
+
+[dependencies]
+clap.workspace = true
+conduit-api.workspace = true
+conduit-core.workspace = true
+conduit-database.workspace = true
+conduit-service.workspace = true
+futures-util.workspace = true
+log.workspace = true
+loole.workspace = true
+regex.workspace = true
+ruma.workspace = true
+rust-rocksdb.optional = true
+rust-rocksdb.workspace = true
+serde_json.workspace = true
+serde.workspace = true
+serde_yaml.workspace = true
+tokio.workspace = true
+tracing-subscriber.workspace = true
+tracing.workspace = true
+
+[lints]
+workspace = true

src/admin/appservice/appservice_command.rs

@@ -1,6 +1,6 @@
 use ruma::{api::appservice::Registration, events::room::message::RoomMessageEventContent};
 
-use crate::{service::admin::escape_html, services, Result};
+use crate::{escape_html, services, Result};
 
 pub(crate) async fn register(body: Vec<&str>) -> Result<RoomMessageEventContent> {
 	if body.len() > 2 && body[0].trim().starts_with("```") && body.last().unwrap().trim() == "```" {

src/admin/appservice/mod.rs

@@ -1,8 +1,8 @@
 use clap::Subcommand;
+use conduit::Result;
 use ruma::events::room::message::RoomMessageEventContent;
 
 use self::appservice_command::{list, register, show, unregister};
-use crate::Result;
 
 pub(crate) mod appservice_command;
 

src/admin/debug/debug_commands.rs

@@ -1,18 +1,15 @@
 use std::{collections::BTreeMap, sync::Arc, time::Instant};
 
+use conduit::{utils::HtmlEscape, Error, Result};
 use ruma::{
 	api::client::error::ErrorKind, events::room::message::RoomMessageEventContent, CanonicalJsonObject, EventId,
 	RoomId, RoomVersionId, ServerName,
 };
+use service::{rooms::event_handler::parse_incoming_pdu, sending::send::resolve_actual_dest, services, PduEvent};
 use tokio::sync::RwLock;
 use tracing::{debug, info, warn};
 use tracing_subscriber::EnvFilter;
 
-use crate::{
-	api::server_server::parse_incoming_pdu, service::sending::send::resolve_actual_dest, services, utils::HtmlEscape,
-	Error, PduEvent, Result,
-};
-
 pub(crate) async fn get_auth_chain(_body: Vec<&str>, event_id: Box<EventId>) -> Result<RoomMessageEventContent> {
 	let event_id = Arc::<EventId>::from(event_id);
 	if let Some(event) = services().rooms.timeline.get_pdu_json(&event_id)? {
@@ -332,7 +329,7 @@ pub(crate) async fn change_log_level(
 		};
 
 		match services()
-			.globals
+			.server
 			.tracing_reload_handle
 			.reload(&old_filter_layer)
 		{
@@ -361,7 +358,7 @@ pub(crate) async fn change_log_level(
 		};
 
 		match services()
-			.globals
+			.server
 			.tracing_reload_handle
 			.reload(&new_filter_layer)
 		{
@@ -447,15 +444,16 @@ pub(crate) async fn resolve_true_destination(
 		));
 	}
 
-	let (actual_dest, hostname_uri) = resolve_actual_dest(&server_name, no_cache, true).await?;
+	let (actual_dest, hostname_uri) = resolve_actual_dest(&server_name, no_cache).await?;
 
 	Ok(RoomMessageEventContent::text_plain(format!(
 		"Actual destination: {actual_dest:?} | Hostname URI: {hostname_uri}"
 	)))
 }
 
+#[must_use]
 pub(crate) fn memory_stats() -> RoomMessageEventContent {
-	let html_body = crate::alloc::memory_stats();
+	let html_body = conduit::alloc::memory_stats();
 
 	if html_body.is_empty() {
 		return RoomMessageEventContent::text_plain("malloc stats are not supported on your compiled malloc.");

src/admin/federation/federation_commands.rs

@@ -2,12 +2,7 @@ use std::fmt::Write as _;
 
 use ruma::{events::room::message::RoomMessageEventContent, OwnedRoomId, RoomId, ServerName, UserId};
 
-use crate::{
+use crate::{escape_html, get_room_info, services, utils::HtmlEscape, Result};
-	service::admin::{escape_html, get_room_info},
-	services,
-	utils::HtmlEscape,
-	Result,
-};
 
 pub(crate) async fn disable_room(_body: Vec<&str>, room_id: Box<RoomId>) -> Result<RoomMessageEventContent> {
 	services().rooms.metadata.disable_room(&room_id, true)?;

src/admin/handler.rs

@@ -0,0 +1,305 @@
+use std::sync::Arc;
+
+use clap::Parser;
+use regex::Regex;
+use ruma::{
+	events::{
+		relation::InReplyTo,
+		room::message::{Relation::Reply, RoomMessageEventContent},
+		TimelineEventType,
+	},
+	OwnedRoomId, OwnedUserId, ServerName, UserId,
+};
+use serde_json::value::to_raw_value;
+use tokio::sync::MutexGuard;
+use tracing::error;
+
+extern crate conduit_service as service;
+
+use conduit::{Error, Result};
+pub(crate) use service::admin::{AdminRoomEvent, Service};
+use service::{admin::HandlerResult, pdu::PduBuilder};
+
+use self::{fsck::FsckCommand, tester::TesterCommands};
+use crate::{
+	appservice, appservice::AppserviceCommand, debug, debug::DebugCommand, escape_html, federation,
+	federation::FederationCommand, fsck, media, media::MediaCommand, query, query::QueryCommand, room,
+	room::RoomCommand, server, server::ServerCommand, services, tester, user, user::UserCommand,
+};
+pub(crate) const PAGE_SIZE: usize = 100;
+
+#[cfg_attr(test, derive(Debug))]
+#[derive(Parser)]
+#[command(name = "@conduit:server.name:", version = env!("CARGO_PKG_VERSION"))]
+pub(crate) enum AdminCommand {
+	#[command(subcommand)]
+	/// - Commands for managing appservices
+	Appservices(AppserviceCommand),
+
+	#[command(subcommand)]
+	/// - Commands for managing local users
+	Users(UserCommand),
+
+	#[command(subcommand)]
+	/// - Commands for managing rooms
+	Rooms(RoomCommand),
+
+	#[command(subcommand)]
+	/// - Commands for managing federation
+	Federation(FederationCommand),
+
+	#[command(subcommand)]
+	/// - Commands for managing the server
+	Server(ServerCommand),
+
+	#[command(subcommand)]
+	/// - Commands for managing media
+	Media(MediaCommand),
+
+	#[command(subcommand)]
+	/// - Commands for debugging things
+	Debug(DebugCommand),
+
+	#[command(subcommand)]
+	/// - Query all the database getters and iterators
+	Query(QueryCommand),
+
+	#[command(subcommand)]
+	/// - Query all the database getters and iterators
+	Fsck(FsckCommand),
+
+	#[command(subcommand)]
+	Tester(TesterCommands),
+}
+
+#[must_use]
+pub fn handle(event: AdminRoomEvent, room: OwnedRoomId, user: OwnedUserId) -> HandlerResult {
+	Box::pin(handle_event(event, room, user))
+}
+
+async fn handle_event(event: AdminRoomEvent, admin_room: OwnedRoomId, server_user: OwnedUserId) -> Result<()> {
+	let (mut message_content, reply) = match event {
+		AdminRoomEvent::SendMessage(content) => (content, None),
+		AdminRoomEvent::ProcessMessage(room_message, reply_id) => {
+			(process_admin_message(room_message).await, Some(reply_id))
+		},
+	};
+
+	let mutex_state = Arc::clone(
+		services()
+			.globals
+			.roomid_mutex_state
+			.write()
+			.await
+			.entry(admin_room.clone())
+			.or_default(),
+	);
+	let state_lock = mutex_state.lock().await;
+
+	if let Some(reply) = reply {
+		message_content.relates_to = Some(Reply {
+			in_reply_to: InReplyTo {
+				event_id: reply.into(),
+			},
+		});
+	}
+
+	let response_pdu = PduBuilder {
+		event_type: TimelineEventType::RoomMessage,
+		content: to_raw_value(&message_content).expect("event is valid, we just created it"),
+		unsigned: None,
+		state_key: None,
+		redacts: None,
+	};
+
+	if let Err(e) = services()
+		.rooms
+		.timeline
+		.build_and_append_pdu(response_pdu, &server_user, &admin_room, &state_lock)
+		.await
+	{
+		handle_response_error(&e, &admin_room, &server_user, &state_lock).await?;
+	}
+
+	Ok(())
+}
+
+async fn handle_response_error(
+	e: &Error, admin_room: &OwnedRoomId, server_user: &UserId, state_lock: &MutexGuard<'_, ()>,
+) -> Result<()> {
+	error!("Failed to build and append admin room response PDU: \"{e}\"");
+	let error_room_message = RoomMessageEventContent::text_plain(format!(
+		"Failed to build and append admin room PDU: \"{e}\"\n\nThe original admin command may have finished \
+		 successfully, but we could not return the output."
+	));
+
+	let response_pdu = PduBuilder {
+		event_type: TimelineEventType::RoomMessage,
+		content: to_raw_value(&error_room_message).expect("event is valid, we just created it"),
+		unsigned: None,
+		state_key: None,
+		redacts: None,
+	};
+
+	services()
+		.rooms
+		.timeline
+		.build_and_append_pdu(response_pdu, server_user, admin_room, state_lock)
+		.await?;
+
+	Ok(())
+}
+
+// Parse and process a message from the admin room
+async fn process_admin_message(room_message: String) -> RoomMessageEventContent {
+	let mut lines = room_message.lines().filter(|l| !l.trim().is_empty());
+	let command_line = lines.next().expect("each string has at least one line");
+	let body = lines.collect::<Vec<_>>();
+
+	let admin_command = match parse_admin_command(command_line) {
+		Ok(command) => command,
+		Err(error) => {
+			let server_name = services().globals.server_name();
+			let message = error.replace("server.name", server_name.as_str());
+			let html_message = usage_to_html(&message, server_name);
+
+			return RoomMessageEventContent::text_html(message, html_message);
+		},
+	};
+
+	match process_admin_command(admin_command, body).await {
+		Ok(reply_message) => reply_message,
+		Err(error) => {
+			let markdown_message = format!("Encountered an error while handling the command:\n```\n{error}\n```",);
+			let html_message = format!("Encountered an error while handling the command:\n<pre>\n{error}\n</pre>",);
+
+			RoomMessageEventContent::text_html(markdown_message, html_message)
+		},
+	}
+}
+
+// Parse chat messages from the admin room into an AdminCommand object
+fn parse_admin_command(command_line: &str) -> Result<AdminCommand, String> {
+	// Note: argv[0] is `@conduit:servername:`, which is treated as the main command
+	let mut argv = command_line.split_whitespace().collect::<Vec<_>>();
+
+	// Replace `help command` with `command --help`
+	// Clap has a help subcommand, but it omits the long help description.
+	if argv.len() > 1 && argv[1] == "help" {
+		argv.remove(1);
+		argv.push("--help");
+	}
+
+	// Backwards compatibility with `register_appservice`-style commands
+	let command_with_dashes_argv1;
+	if argv.len() > 1 && argv[1].contains('_') {
+		command_with_dashes_argv1 = argv[1].replace('_', "-");
+		argv[1] = &command_with_dashes_argv1;
+	}
+
+	// Backwards compatibility with `register_appservice`-style commands
+	let command_with_dashes_argv2;
+	if argv.len() > 2 && argv[2].contains('_') {
+		command_with_dashes_argv2 = argv[2].replace('_', "-");
+		argv[2] = &command_with_dashes_argv2;
+	}
+
+	// if the user is using the `query` command (argv[1]), replace the database
+	// function/table calls with underscores to match the codebase
+	let command_with_dashes_argv3;
+	if argv.len() > 3 && argv[1].eq("query") {
+		command_with_dashes_argv3 = argv[3].replace('_', "-");
+		argv[3] = &command_with_dashes_argv3;
+	}
+
+	AdminCommand::try_parse_from(argv).map_err(|error| error.to_string())
+}
+
+async fn process_admin_command(command: AdminCommand, body: Vec<&str>) -> Result<RoomMessageEventContent> {
+	let reply_message_content = match command {
+		AdminCommand::Appservices(command) => appservice::process(command, body).await?,
+		AdminCommand::Media(command) => media::process(command, body).await?,
+		AdminCommand::Users(command) => user::process(command, body).await?,
+		AdminCommand::Rooms(command) => room::process(command, body).await?,
+		AdminCommand::Federation(command) => federation::process(command, body).await?,
+		AdminCommand::Server(command) => server::process(command, body).await?,
+		AdminCommand::Debug(command) => debug::process(command, body).await?,
+		AdminCommand::Query(command) => query::process(command, body).await?,
+		AdminCommand::Fsck(command) => fsck::process(command, body).await?,
+		AdminCommand::Tester(command) => tester::process(command, body).await?,
+	};
+
+	Ok(reply_message_content)
+}
+
+// Utility to turn clap's `--help` text to HTML.
+fn usage_to_html(text: &str, server_name: &ServerName) -> String {
+	// Replace `@conduit:servername:-subcmdname` with `@conduit:servername:
+	// subcmdname`
+	let text = text.replace(&format!("@conduit:{server_name}:-"), &format!("@conduit:{server_name}: "));
+
+	// For the conduit admin room, subcommands become main commands
+	let text = text.replace("SUBCOMMAND", "COMMAND");
+	let text = text.replace("subcommand", "command");
+
+	// Escape option names (e.g. `<element-id>`) since they look like HTML tags
+	let text = escape_html(&text);
+
+	// Italicize the first line (command name and version text)
+	let re = Regex::new("^(.*?)\n").expect("Regex compilation should not fail");
+	let text = re.replace_all(&text, "<em>$1</em>\n");
+
+	// Unmerge wrapped lines
+	let text = text.replace("\n            ", "  ");
+
+	// Wrap option names in backticks. The lines look like:
+	//     -V, --version  Prints version information
+	// And are converted to:
+	// <code>-V, --version</code>: Prints version information
+	// (?m) enables multi-line mode for ^ and $
+	let re = Regex::new("(?m)^ {4}(([a-zA-Z_&;-]+(, )?)+)  +(.*)$").expect("Regex compilation should not fail");
+	let text = re.replace_all(&text, "<code>$1</code>: $4");
+
+	// Look for a `[commandbody]` tag. If it exists, use all lines below it that
+	// start with a `#` in the USAGE section.
+	let mut text_lines = text.lines().collect::<Vec<&str>>();
+	let mut command_body = String::new();
+
+	if let Some(line_index) = text_lines.iter().position(|line| *line == "[commandbody]") {
+		text_lines.remove(line_index);
+
+		while text_lines
+			.get(line_index)
+			.is_some_and(|line| line.starts_with('#'))
+		{
+			command_body += if text_lines[line_index].starts_with("# ") {
+				&text_lines[line_index][2..]
+			} else {
+				&text_lines[line_index][1..]
+			};
+			command_body += "[nobr]\n";
+			text_lines.remove(line_index);
+		}
+	}
+
+	let text = text_lines.join("\n");
+
+	// Improve the usage section
+	let text = if command_body.is_empty() {
+		// Wrap the usage line in code tags
+		let re = Regex::new("(?m)^USAGE:\n {4}(@conduit:.*)$").expect("Regex compilation should not fail");
+		re.replace_all(&text, "USAGE:\n<code>$1</code>").to_string()
+	} else {
+		// Wrap the usage line in a code block, and add a yaml block example
+		// This makes the usage of e.g. `register-appservice` more accurate
+		let re = Regex::new("(?m)^USAGE:\n {4}(.*?)\n\n").expect("Regex compilation should not fail");
+		re.replace_all(&text, "USAGE:\n<pre>$1[nobr]\n[commandbodyblock]</pre>")
+			.replace("[commandbodyblock]", &command_body)
+	};
+
+	// Add HTML line-breaks
+
+	text.replace("\n\n\n", "\n\n")
+		.replace('\n', "<br>\n")
+		.replace("[nobr]<br>", "")
+}

src/admin/media/media_commands.rs

@@ -1,7 +1,7 @@
-use ruma::{events::room::message::RoomMessageEventContent, EventId};
+use ruma::{events::room::message::RoomMessageEventContent, EventId, MxcUri};
 use tracing::{debug, info};
 
-use crate::{service::admin::MxcUri, services, Result};
+use crate::{services, Result};
 
 pub(crate) async fn delete(
 	_body: Vec<&str>, mxc: Option<Box<MxcUri>>, event_id: Option<Box<EventId>>,

src/admin/media/mod.rs

@@ -1,8 +1,8 @@
 use clap::Subcommand;
-use ruma::{events::room::message::RoomMessageEventContent, EventId};
+use ruma::{events::room::message::RoomMessageEventContent, EventId, MxcUri};
 
 use self::media_commands::{delete, delete_list, delete_past_remote_media};
-use crate::{service::admin::MxcUri, Result};
+use crate::Result;
 
 pub(crate) mod media_commands;
 

src/admin/mod.rs

@@ -0,0 +1,55 @@
+pub(crate) mod appservice;
+pub(crate) mod debug;
+pub(crate) mod federation;
+pub(crate) mod fsck;
+pub(crate) mod handler;
+pub(crate) mod media;
+pub(crate) mod query;
+pub(crate) mod room;
+pub(crate) mod server;
+pub(crate) mod tester;
+pub(crate) mod user;
+pub(crate) mod utils;
+
+extern crate conduit_api as api;
+extern crate conduit_core as conduit;
+extern crate conduit_service as service;
+
+pub(crate) use conduit::{mod_ctor, mod_dtor, Result};
+pub use handler::handle;
+pub(crate) use service::{services, user_is_local};
+
+pub(crate) use crate::{
+	handler::Service,
+	utils::{escape_html, get_room_info},
+};
+
+mod_ctor! {}
+mod_dtor! {}
+
+#[cfg(test)]
+mod test {
+	use clap::Parser;
+
+	use crate::handler::AdminCommand;
+
+	#[test]
+	fn get_help_short() { get_help_inner("-h"); }
+
+	#[test]
+	fn get_help_long() { get_help_inner("--help"); }
+
+	#[test]
+	fn get_help_subcommand() { get_help_inner("help"); }
+
+	fn get_help_inner(input: &str) {
+		let error = AdminCommand::try_parse_from(["argv[0] doesn't matter", input])
+			.unwrap_err()
+			.to_string();
+
+		// Search for a handful of keywords that suggest the help printed properly
+		assert!(error.contains("Usage:"));
+		assert!(error.contains("Commands:"));
+		assert!(error.contains("Options:"));
+	}
+}

src/admin/room/room_alias_commands.rs

@@ -3,7 +3,7 @@ use std::fmt::Write as _;
 use ruma::{events::room::message::RoomMessageEventContent, RoomAliasId};
 
 use super::RoomAliasCommand;
-use crate::{service::admin::escape_html, services, Result};
+use crate::{escape_html, services, Result};
 
 pub(crate) async fn process(command: RoomAliasCommand, _body: Vec<&str>) -> Result<RoomMessageEventContent> {
 	match command {

src/admin/room/room_commands.rs

@@ -2,10 +2,7 @@ use std::fmt::Write as _;
 
 use ruma::{events::room::message::RoomMessageEventContent, OwnedRoomId};
 
-use crate::{
+use crate::{escape_html, get_room_info, handler::PAGE_SIZE, services, Result};
-	service::admin::{escape_html, get_room_info, PAGE_SIZE},
-	services, Result,
-};
 
 pub(crate) async fn list(_body: Vec<&str>, page: Option<usize>) -> Result<RoomMessageEventContent> {
 	// TODO: i know there's a way to do this with clap, but i can't seem to find it

src/admin/room/room_directory_commands.rs

@@ -3,10 +3,7 @@ use std::fmt::Write as _;
 use ruma::{events::room::message::RoomMessageEventContent, OwnedRoomId};
 
 use super::RoomDirectoryCommand;
-use crate::{
+use crate::{escape_html, get_room_info, handler::PAGE_SIZE, services, Result};
-	service::admin::{escape_html, get_room_info, PAGE_SIZE},
-	services, Result,
-};
 
 pub(crate) async fn process(command: RoomDirectoryCommand, _body: Vec<&str>) -> Result<RoomMessageEventContent> {
 	match command {

src/admin/room/room_moderation_commands.rs

@@ -1,18 +1,16 @@
-use std::fmt::Write as _;
+use std::fmt::Write;
 
+use api::client_server::{get_alias_helper, leave_room};
 use ruma::{
 	events::room::message::RoomMessageEventContent, OwnedRoomId, OwnedUserId, RoomAliasId, RoomId, RoomOrAliasId,
 };
 use tracing::{debug, error, info, warn};
 
-use super::RoomModerationCommand;
+use super::{
-use crate::{
+	super::{escape_html, Service},
-	api::client_server::{get_alias_helper, leave_room},
+	RoomModerationCommand,
-	service::admin::{escape_html, Service},
-	services,
-	utils::user_id::user_is_local,
-	Result,
 };
+use crate::{services, user_is_local, Result};
 
 pub(crate) async fn process(command: RoomModerationCommand, body: Vec<&str>) -> Result<RoomMessageEventContent> {
 	match command {

src/admin/server/server_commands.rs

@@ -4,7 +4,7 @@ use crate::{services, Result};
 
 pub(crate) async fn uptime(_body: Vec<&str>) -> Result<RoomMessageEventContent> {
 	let seconds = services()
-		.globals
+		.server
 		.started
 		.elapsed()
 		.expect("standard duration")
@@ -28,7 +28,7 @@ pub(crate) async fn show_config(_body: Vec<&str>) -> Result<RoomMessageEventCont
 pub(crate) async fn memory_usage(_body: Vec<&str>) -> Result<RoomMessageEventContent> {
 	let response0 = services().memory_usage().await;
 	let response1 = services().globals.db.memory_usage();
-	let response2 = crate::alloc::memory_usage();
+	let response2 = conduit::alloc::memory_usage();
 
 	Ok(RoomMessageEventContent::text_plain(format!(
 		"Services:\n{response0}\n\nDatabase:\n{response1}\n{}",
@@ -69,7 +69,10 @@ pub(crate) async fn backup_database(_body: Vec<&str>) -> Result<RoomMessageEvent
 		));
 	}
 
-	let mut result = tokio::task::spawn_blocking(move || match services().globals.db.backup() {
+	let mut result = services()
+		.server
+		.runtime()
+		.spawn_blocking(move || match services().globals.db.backup() {
 			Ok(()) => String::new(),
 			Err(e) => (*e).to_string(),
 		})

src/admin/tester/mod.rs

@@ -9,6 +9,6 @@ pub(crate) enum TesterCommands {
 }
 pub(crate) async fn process(command: TesterCommands, _body: Vec<&str>) -> Result<RoomMessageEventContent> {
 	Ok(match command {
-		TesterCommands::Tester => RoomMessageEventContent::notice_plain(String::from("complete")),
+		TesterCommands::Tester => RoomMessageEventContent::notice_plain(String::from("completed")),
 	})
 }

src/admin/user/user_commands.rs

@@ -1,15 +1,13 @@
 use std::{fmt::Write as _, sync::Arc};
 
+use api::client_server::{join_room_by_id_helper, leave_all_rooms};
+use conduit::utils;
 use ruma::{events::room::message::RoomMessageEventContent, OwnedRoomId, UserId};
 use tracing::{error, info, warn};
 
-use crate::{
+use crate::{escape_html, get_room_info, services, user_is_local, Result};
-	api::client_server::{join_room_by_id_helper, leave_all_rooms, AUTO_GEN_PASSWORD_LENGTH},
+
-	service::admin::{escape_html, get_room_info},
+const AUTO_GEN_PASSWORD_LENGTH: usize = 25;
-	services,
-	utils::{self, user_id::user_is_local},
-	Result,
-};
 
 pub(crate) async fn list(_body: Vec<&str>) -> Result<RoomMessageEventContent> {
 	match services().users.list_local_users() {
@@ -111,7 +109,7 @@ pub(crate) async fn create(
 				)
 				.await
 				{
-					Ok(_) => {
+					Ok(_response) => {
 						info!("Automatically joined room {room} for user {user_id}");
 					},
 					Err(e) => {

src/admin/utils.rs

@@ -0,0 +1,30 @@
+pub(crate) use conduit::utils::HtmlEscape;
+use ruma::OwnedRoomId;
+
+use crate::services;
+
+pub(crate) fn escape_html(s: &str) -> String {
+	s.replace('&', "&")
+		.replace('<', "&lt;")
+		.replace('>', "&gt;")
+}
+
+pub(crate) fn get_room_info(id: &OwnedRoomId) -> (OwnedRoomId, u64, String) {
+	(
+		id.clone(),
+		services()
+			.rooms
+			.state_cache
+			.room_joined_count(id)
+			.ok()
+			.flatten()
+			.unwrap_or(0),
+		services()
+			.rooms
+			.state_accessor
+			.get_name(id)
+			.ok()
+			.flatten()
+			.unwrap_or_else(|| id.to_string()),
+	)
+}

src/alloc/default.rs

@@ -1,7 +0,0 @@
-//! Default allocator with no special features
-
-/// Always returns the empty string
-pub(crate) fn memory_stats() -> String { Default::default() }
-
-/// Always returns the empty string
-pub(crate) fn memory_usage() -> String { Default::default() }

src/alloc/hardened.rs

@@ -1,8 +0,0 @@
-#[global_allocator]
-static HMALLOC: hardened_malloc_rs::HardenedMalloc = hardened_malloc_rs::HardenedMalloc;
-
-pub(crate) fn memory_usage() -> String {
-	String::default() //TODO: get usage
-}
-
-pub(crate) fn memory_stats() -> String { "Extended statistics are not available from hardened_malloc.".to_owned() }

src/api/Cargo.toml

@@ -0,0 +1,66 @@
+[package]
+name = "conduit_api"
+version.workspace = true
+edition.workspace = true
+
+[lib]
+path = "mod.rs"
+crate-type = [
+	"rlib",
+#	"dylib",
+]
+
+[features]
+default = [
+	"element_hacks",
+	"gzip_compression",
+	"brotli_compression",
+	"release_max_log_level",
+]
+
+element_hacks = []
+dev_release_log_level = []
+release_max_log_level = [
+	"tracing/max_level_trace",
+	"tracing/release_max_level_info",
+	"log/max_level_trace",
+	"log/release_max_level_info",
+]
+gzip_compression = [
+	"reqwest/gzip",
+]
+brotli_compression = [
+	"reqwest/brotli",
+]
+
+[dependencies]
+argon2.workspace = true
+axum-extra.workspace = true
+axum.workspace = true
+base64.workspace = true
+bytes.workspace = true
+conduit-core.workspace = true
+conduit-database.workspace = true
+conduit-service.workspace = true
+futures-util.workspace = true
+hmac.workspace = true
+http.workspace = true
+hyper.workspace = true
+image.workspace = true
+ipaddress.workspace = true
+jsonwebtoken.workspace = true
+log.workspace = true
+rand.workspace = true
+reqwest.workspace = true
+ruma.workspace = true
+serde_html_form.workspace = true
+serde_json.workspace = true
+serde.workspace = true
+sha-1.workspace = true
+thiserror.workspace = true
+tokio.workspace = true
+tracing.workspace = true
+webpage.workspace = true
+
+[lints]
+workspace = true

src/api/client_server/account.rs

@@ -19,9 +19,10 @@ use tracing::{error, info, warn};
 
 use super::{DEVICE_ID_LENGTH, SESSION_ID_LENGTH, TOKEN_LENGTH};
 use crate::{
-	api::client_server::{self, join_room_by_id_helper},
+	client_server::{self, join_room_by_id_helper},
-	service, services,
+	service::user_is_local,
-	utils::{self, user_id::user_is_local},
+	services,
+	utils::{self},
 	Error, Result, Ruma,
 };
 

src/api/client_server/alias.rs

@@ -13,8 +13,9 @@ use ruma::{
 use tracing::debug;
 
 use crate::{
-	debug_info, debug_warn, service::appservice::RegistrationInfo, services, utils::server_name::server_is_ours, Error,
+	debug_info, debug_warn,
-	Result, Ruma,
+	service::{appservice::RegistrationInfo, server_is_ours},
+	services, Error, Result, Ruma,
 };
 
 /// # `PUT /_matrix/client/v3/directory/room/{roomAlias}`
@@ -65,7 +66,6 @@ pub(crate) async fn create_alias_route(body: Ruma<create_alias::v3::Request>) ->
 /// - TODO: Update canonical alias event
 pub(crate) async fn delete_alias_route(body: Ruma<delete_alias::v3::Request>) -> Result<delete_alias::v3::Response> {
 	alias_checks(&body.room_alias, &body.appservice_info).await?;
-
 	if services()
 		.rooms
 		.alias
@@ -99,7 +99,7 @@ pub(crate) async fn get_alias_route(body: Ruma<get_alias::v3::Request>) -> Resul
 	get_alias_helper(body.body.room_alias, None).await
 }
 
-pub(crate) async fn get_alias_helper(
+pub async fn get_alias_helper(
 	room_alias: OwnedRoomAliasId, servers: Option<Vec<OwnedServerName>>,
 ) -> Result<get_alias::v3::Response> {
 	debug!("get_alias_helper servers: {servers:?}");

src/api/client_server/directory.rs

@@ -24,7 +24,7 @@ use ruma::{
 };
 use tracing::{error, info, warn};
 
-use crate::{services, utils::server_name::server_is_ours, Error, Result, Ruma};
+use crate::{service::server_is_ours, services, Error, Result, Ruma};
 
 /// # `POST /_matrix/client/v3/publicRooms`
 ///

src/api/client_server/keys.rs

@@ -22,8 +22,9 @@ use tracing::debug;
 
 use super::SESSION_ID_LENGTH;
 use crate::{
+	service::user_is_local,
 	services,
-	utils::{self, user_id::user_is_local},
+	utils::{self},
 	Error, Result, Ruma,
 };
 

src/api/client_server/media.rs

@@ -15,14 +15,16 @@ use webpage::HTML;
 
 use crate::{
 	debug_warn,
-	service::media::{FileMeta, UrlPreviewData},
+	service::{
+		media::{FileMeta, UrlPreviewData},
+		server_is_ours,
+	},
 	services,
 	utils::{
 		self,
 		content_disposition::{
 			content_disposition_type, make_content_disposition, make_content_type, sanitise_filename,
 		},
-		server_name::server_is_ours,
 	},
 	Error, Result, Ruma, RumaResponse,
 };

src/api/client_server/membership.rs

@@ -35,9 +35,12 @@ use tracing::{debug, error, info, trace, warn};
 
 use super::get_alias_helper;
 use crate::{
-	service::pdu::{gen_event_id_canonical_json, PduBuilder},
+	service::{
+		pdu::{gen_event_id_canonical_json, PduBuilder},
+		server_is_ours, user_is_local,
+	},
 	services,
-	utils::{self, server_name::server_is_ours, user_id::user_is_local},
+	utils::{self},
 	Error, PduEvent, Result, Ruma,
 };
 
@@ -607,7 +610,7 @@ pub(crate) async fn joined_members_route(
 	})
 }
 
-pub(crate) async fn join_room_by_id_helper(
+pub async fn join_room_by_id_helper(
 	sender_user: Option<&UserId>, room_id: &RoomId, reason: Option<String>, servers: &[OwnedServerName],
 	_third_party_signed: Option<&ThirdPartySigned>,
 ) -> Result<join_room_by_id::v3::Response> {
@@ -1525,7 +1528,7 @@ pub(crate) async fn invite_helper(
 
 // Make a user leave all their joined rooms, forgets all rooms, and ignores
 // errors
-pub(crate) async fn leave_all_rooms(user_id: &UserId) {
+pub async fn leave_all_rooms(user_id: &UserId) {
 	let all_rooms = services()
 		.rooms
 		.state_cache
@@ -1550,7 +1553,7 @@ pub(crate) async fn leave_all_rooms(user_id: &UserId) {
 	}
 }
 
-pub(crate) async fn leave_room(user_id: &UserId, room_id: &RoomId, reason: Option<String>) -> Result<()> {
+pub async fn leave_room(user_id: &UserId, room_id: &RoomId, reason: Option<String>) -> Result<()> {
 	// Ask a remote server if we don't have this room
 	if !services()
 		.rooms

src/api/client_server/message.rs

@@ -3,6 +3,7 @@ use std::{
 	sync::Arc,
 };
 
+use conduit::PduCount;
 use ruma::{
 	api::client::{
 		error::ErrorKind,
@@ -14,10 +15,7 @@ use ruma::{
 };
 use serde_json::{from_str, Value};
 
-use crate::{
+use crate::{service::pdu::PduBuilder, services, utils, Error, PduEvent, Result, Ruma};
-	service::{pdu::PduBuilder, rooms::timeline::PduCount},
-	services, utils, Error, PduEvent, Result, Ruma,
-};
 
 /// # `PUT /_matrix/client/v3/rooms/{roomId}/send/{eventType}/{txnId}`
 ///

src/api/client_server/mod.rs

@@ -1,40 +1,41 @@
-mod account;
+pub(crate) mod account;
-mod alias;
+pub(crate) mod alias;
-mod backup;
+pub(crate) mod backup;
-mod capabilities;
+pub(crate) mod capabilities;
-mod config;
+pub(crate) mod config;
-mod context;
+pub(crate) mod context;
-mod device;
+pub(crate) mod device;
-mod directory;
+pub(crate) mod directory;
-mod filter;
+pub(crate) mod filter;
-mod keys;
+pub(crate) mod keys;
-mod media;
+pub(crate) mod media;
-mod membership;
+pub(crate) mod membership;
-mod message;
+pub(crate) mod message;
-mod presence;
+pub(crate) mod presence;
-mod profile;
+pub(crate) mod profile;
-mod push;
+pub(crate) mod push;
-mod read_marker;
+pub(crate) mod read_marker;
-mod redact;
+pub(crate) mod redact;
-mod relations;
+pub(crate) mod relations;
-mod report;
+pub(crate) mod report;
-mod room;
+pub(crate) mod room;
-mod search;
+pub(crate) mod search;
-mod session;
+pub(crate) mod session;
-mod space;
+pub(crate) mod space;
-mod state;
+pub(crate) mod state;
-mod sync;
+pub(crate) mod sync;
-mod tag;
+pub(crate) mod tag;
-mod thirdparty;
+pub(crate) mod thirdparty;
-mod threads;
+pub(crate) mod threads;
-mod to_device;
+pub(crate) mod to_device;
-mod typing;
+pub(crate) mod typing;
-mod unstable;
+pub(crate) mod unstable;
-mod unversioned;
+pub(crate) mod unversioned;
-mod user_directory;
+pub(crate) mod user_directory;
-mod voip;
+pub(crate) mod voip;
 
 pub(crate) use account::*;
+pub use alias::get_alias_helper;
 pub(crate) use alias::*;
 pub(crate) use backup::*;
 pub(crate) use capabilities::*;
@@ -46,6 +47,7 @@ pub(crate) use filter::*;
 pub(crate) use keys::*;
 pub(crate) use media::*;
 pub(crate) use membership::*;
+pub use membership::{join_room_by_id_helper, leave_all_rooms, leave_room};
 pub(crate) use message::*;
 pub(crate) use presence::*;
 pub(crate) use profile::*;
@@ -77,7 +79,4 @@ const DEVICE_ID_LENGTH: usize = 10;
 const TOKEN_LENGTH: usize = 32;
 
 /// generated user session ID length
-pub(crate) const SESSION_ID_LENGTH: usize = 32;
+const SESSION_ID_LENGTH: usize = service::uiaa::SESSION_ID_LENGTH;
-
-/// auto-generated password length
-pub(crate) const AUTO_GEN_PASSWORD_LENGTH: usize = 25;

src/api/client_server/profile.rs

@@ -13,7 +13,10 @@ use ruma::{
 };
 use serde_json::value::to_raw_value;
 
-use crate::{service::pdu::PduBuilder, services, utils::user_id::user_is_local, Error, Result, Ruma};
+use crate::{
+	service::{pdu::PduBuilder, user_is_local},
+	services, Error, Result, Ruma,
+};
 
 /// # `PUT /_matrix/client/r0/profile/{userId}/displayname`
 ///

src/api/client_server/read_marker.rs

@@ -1,5 +1,6 @@
 use std::collections::BTreeMap;
 
+use conduit::PduCount;
 use ruma::{
 	api::client::{error::ErrorKind, read_marker::set_read_marker, receipt::create_receipt},
 	events::{
@@ -9,7 +10,7 @@ use ruma::{
 	MilliSecondsSinceUnixEpoch,
 };
 
-use crate::{service::rooms::timeline::PduCount, services, Error, Result, Ruma};
+use crate::{services, Error, Result, Ruma};
 
 /// # `POST /_matrix/client/r0/rooms/{roomId}/read_markers`
 ///

src/api/client_server/room.rs

@@ -1,5 +1,6 @@
 use std::{cmp::max, collections::BTreeMap, sync::Arc};
 
+use conduit::{debug_info, debug_warn};
 use ruma::{
 	api::client::{
 		error::ErrorKind,
@@ -28,8 +29,7 @@ use serde_json::{json, value::to_raw_value};
 use tracing::{error, info, warn};
 
 use crate::{
-	api::client_server::invite_helper,
+	client_server::invite_helper,
-	debug_info, debug_warn,
 	service::{appservice::RegistrationInfo, pdu::PduBuilder},
 	services, Error, Result, Ruma,
 };

src/api/client_server/state.rs

@@ -19,10 +19,8 @@ use ruma::{
 use tracing::{error, log::warn};
 
 use crate::{
-	service::{self, pdu::PduBuilder},
+	service::{pdu::PduBuilder, server_is_ours},
-	services,
+	services, Error, Result, Ruma, RumaResponse,
-	utils::server_name::server_is_ours,
-	Error, Result, Ruma, RumaResponse,
 };
 
 /// # `PUT /_matrix/client/*/rooms/{roomId}/state/{eventType}/{stateKey}`

src/api/client_server/sync.rs

@@ -5,6 +5,7 @@ use std::{
 	time::Duration,
 };
 
+use conduit::PduCount;
 use ruma::{
 	api::client::{
 		filter::{FilterDefinition, LazyLoadOptions},
@@ -29,10 +30,7 @@ use ruma::{
 };
 use tracing::{error, Instrument as _, Span};
 
-use crate::{
+use crate::{service::pdu::EventHash, services, utils, Error, PduEvent, Result, Ruma, RumaResponse};
-	service::{pdu::EventHash, rooms::timeline::PduCount},
-	services, utils, Error, PduEvent, Result, Ruma, RumaResponse,
-};
 
 /// # `GET /_matrix/client/r0/sync`
 ///

src/api/client_server/to_device.rs

@@ -8,7 +8,7 @@ use ruma::{
 	to_device::DeviceIdOrAllDevices,
 };
 
-use crate::{services, utils::user_id::user_is_local, Error, Result, Ruma};
+use crate::{services, user_is_local, Error, Result, Ruma};
 
 /// # `PUT /_matrix/client/r0/sendToDevice/{eventType}/{txnId}`
 ///

src/api/mod.rs

@@ -1,3 +1,15 @@
-pub(crate) mod client_server;
+pub mod client_server;
+pub mod router;
 pub(crate) mod ruma_wrapper;
-pub(crate) mod server_server;
+pub mod server_server;
+
+extern crate conduit_core as conduit;
+extern crate conduit_service as service;
+
+pub use client_server::membership::{join_room_by_id_helper, leave_all_rooms};
+pub(crate) use conduit::{debug_error, debug_info, debug_warn, error::RumaResponse, utils, Error, Result};
+pub(crate) use ruma_wrapper::Ruma;
+pub(crate) use service::{pdu::PduEvent, services, user_is_local};
+
+conduit::mod_ctor! {}
+conduit::mod_dtor! {}

src/api/router.rs

@@ -6,16 +6,15 @@ use axum::{
 	routing::{any, get, on, post, MethodFilter},
 	Router,
 };
+use conduit::{Error, Result, Server};
 use http::{Method, Uri};
 use ruma::api::{client::error::ErrorKind, IncomingRequest};
 
-use crate::{
+use crate::{client_server, server_server, Ruma, RumaResponse};
-	api::{client_server, server_server},
-	Config, Error, Result, Ruma, RumaResponse,
-};
 
-pub(crate) fn routes(config: &Config) -> Router {
+pub fn build(router: Router, server: &Server) -> Router {
-	let router = Router::new()
+	let config = &server.config;
+	let router = router
 		.ruma_route(client_server::get_supported_versions_route)
 		.ruma_route(client_server::get_register_available_route)
 		.ruma_route(client_server::register_route)
@@ -187,9 +186,7 @@ pub(crate) fn routes(config: &Config) -> Router {
         .route("/_conduwuit/server_version", get(client_server::conduwuit_server_version))
 		.route("/_matrix/client/r0/rooms/:room_id/initialSync", get(initial_sync))
 		.route("/_matrix/client/v3/rooms/:room_id/initialSync", get(initial_sync))
-		.route("/client/server.json", get(client_server::syncv3_client_server_json))
+		.route("/client/server.json", get(client_server::syncv3_client_server_json));
-		.route("/", get(it_works))
-		.fallback(not_found);
 
 	if config.allow_federation {
 		router
@@ -230,16 +227,10 @@ pub(crate) fn routes(config: &Config) -> Router {
 	}
 }
 
-async fn not_found(_uri: Uri) -> impl IntoResponse {
-	Error::BadRequest(ErrorKind::Unrecognized, "Unrecognized request")
-}
-
 async fn initial_sync(_uri: Uri) -> impl IntoResponse {
 	Error::BadRequest(ErrorKind::GuestAccessForbidden, "Guest access not implemented")
 }
 
-async fn it_works() -> &'static str { "hewwo from conduwuit woof!" }
-
 async fn federation_disabled() -> impl IntoResponse { Error::bad_config("Federation is disabled.") }
 
 trait RouterExt {
@@ -259,7 +250,7 @@ impl RouterExt for Router {
 	}
 }
 
-pub(crate) trait RumaHandler<T> {
+trait RumaHandler<T> {
 	// Can't transform to a handler without boxing or relying on the nightly-only
 	// impl-trait-in-traits feature. Moving a small amount of extra logic into the
 	// trait allows bypassing both.

src/api/ruma_wrapper/axum.rs

@@ -3,30 +3,26 @@ use std::{collections::BTreeMap, str};
 use axum::{
 	async_trait,
 	extract::{FromRequest, Path},
-	response::{IntoResponse, Response},
 	RequestExt, RequestPartsExt,
 };
 use axum_extra::{
-	headers::{
+	headers::{authorization::Bearer, Authorization},
-		authorization::{Bearer, Credentials},
-		Authorization,
-	},
 	typed_header::TypedHeaderRejectionReason,
 	TypedHeader,
 };
 use bytes::{BufMut, BytesMut};
-use http::{uri::PathAndQuery, StatusCode};
+use conduit::debug_warn;
-use http_body_util::Full;
+use http::uri::PathAndQuery;
 use hyper::Request;
 use ruma::{
-	api::{client::error::ErrorKind, AuthScheme, IncomingRequest, OutgoingResponse},
+	api::{client::error::ErrorKind, AuthScheme, IncomingRequest},
-	CanonicalJsonValue, OwnedDeviceId, OwnedServerName, OwnedUserId, UserId,
+	CanonicalJsonValue, OwnedDeviceId, OwnedUserId, UserId,
 };
 use serde::Deserialize;
 use tracing::{debug, error, trace, warn};
 
-use super::{Ruma, RumaResponse};
+use super::{xmatrix::XMatrix, Ruma};
-use crate::{debug_warn, service::appservice::RegistrationInfo, services, Error, Result};
+use crate::{service::appservice::RegistrationInfo, services, Error, Result};
 
 enum Token {
 	Appservice(Box<RegistrationInfo>),
@@ -332,68 +328,3 @@ where
 		})
 	}
 }
-
-struct XMatrix {
-	origin: OwnedServerName,
-	destination: Option<String>,
-	key: String, // KeyName?
-	sig: String,
-}
-
-impl Credentials for XMatrix {
-	const SCHEME: &'static str = "X-Matrix";
-
-	fn decode(value: &http::HeaderValue) -> Option<Self> {
-		debug_assert!(
-			value.as_bytes().starts_with(b"X-Matrix "),
-			"HeaderValue to decode should start with \"X-Matrix ..\", received = {value:?}",
-		);
-
-		let parameters = str::from_utf8(&value.as_bytes()["X-Matrix ".len()..])
-			.ok()?
-			.trim_start();
-
-		let mut origin = None;
-		let mut destination = None;
-		let mut key = None;
-		let mut sig = None;
-
-		for entry in parameters.split_terminator(',') {
-			let (name, value) = entry.split_once('=')?;
-
-			// It's not at all clear why some fields are quoted and others not in the spec,
-			// let's simply accept either form for every field.
-			let value = value
-				.strip_prefix('"')
-				.and_then(|rest| rest.strip_suffix('"'))
-				.unwrap_or(value);
-
-			// FIXME: Catch multiple fields of the same name
-			match name {
-				"origin" => origin = Some(value.try_into().ok()?),
-				"key" => key = Some(value.to_owned()),
-				"sig" => sig = Some(value.to_owned()),
-				"destination" => destination = Some(value.to_owned()),
-				_ => debug!("Unexpected field `{name}` in X-Matrix Authorization header"),
-			}
-		}
-
-		Some(Self {
-			origin: origin?,
-			key: key?,
-			sig: sig?,
-			destination,
-		})
-	}
-
-	fn encode(&self) -> http::HeaderValue { todo!() }
-}
-
-impl<T: OutgoingResponse> IntoResponse for RumaResponse<T> {
-	fn into_response(self) -> Response {
-		match self.0.try_into_http_response::<BytesMut>() {
-			Ok(res) => res.map(BytesMut::freeze).map(Full::new).into_response(),
-			Err(_) => StatusCode::INTERNAL_SERVER_ERROR.into_response(),
-		}
-	}
-}

src/api/ruma_wrapper/mod.rs

@@ -1,10 +1,11 @@
+pub(crate) mod axum;
+mod xmatrix;
+
 use std::ops::Deref;
 
-use ruma::{api::client::uiaa::UiaaResponse, CanonicalJsonValue, OwnedDeviceId, OwnedServerName, OwnedUserId};
+use ruma::{CanonicalJsonValue, OwnedDeviceId, OwnedServerName, OwnedUserId};
 
-use crate::{service::appservice::RegistrationInfo, Error};
+use crate::service::appservice::RegistrationInfo;
-
-mod axum;
 
 /// Extractor for Ruma request structs
 pub(crate) struct Ruma<T> {
@@ -21,14 +22,3 @@ impl<T> Deref for Ruma<T> {
 
 	fn deref(&self) -> &Self::Target { &self.body }
 }
-
-#[derive(Clone)]
-pub(crate) struct RumaResponse<T>(pub(crate) T);
-
-impl<T> From<T> for RumaResponse<T> {
-	fn from(t: T) -> Self { Self(t) }
-}
-
-impl From<Error> for RumaResponse<UiaaResponse> {
-	fn from(t: Error) -> Self { t.to_response() }
-}

src/api/ruma_wrapper/xmatrix.rs

@@ -0,0 +1,61 @@
+use std::str;
+
+use axum_extra::headers::authorization::Credentials;
+use ruma::OwnedServerName;
+use tracing::debug;
+
+pub(crate) struct XMatrix {
+	pub(crate) origin: OwnedServerName,
+	pub(crate) destination: Option<String>,
+	pub(crate) key: String, // KeyName?
+	pub(crate) sig: String,
+}
+
+impl Credentials for XMatrix {
+	const SCHEME: &'static str = "X-Matrix";
+
+	fn decode(value: &http::HeaderValue) -> Option<Self> {
+		debug_assert!(
+			value.as_bytes().starts_with(b"X-Matrix "),
+			"HeaderValue to decode should start with \"X-Matrix ..\", received = {value:?}",
+		);
+
+		let parameters = str::from_utf8(&value.as_bytes()["X-Matrix ".len()..])
+			.ok()?
+			.trim_start();
+
+		let mut origin = None;
+		let mut destination = None;
+		let mut key = None;
+		let mut sig = None;
+
+		for entry in parameters.split_terminator(',') {
+			let (name, value) = entry.split_once('=')?;
+
+			// It's not at all clear why some fields are quoted and others not in the spec,
+			// let's simply accept either form for every field.
+			let value = value
+				.strip_prefix('"')
+				.and_then(|rest| rest.strip_suffix('"'))
+				.unwrap_or(value);
+
+			// FIXME: Catch multiple fields of the same name
+			match name {
+				"origin" => origin = Some(value.try_into().ok()?),
+				"key" => key = Some(value.to_owned()),
+				"sig" => sig = Some(value.to_owned()),
+				"destination" => destination = Some(value.to_owned()),
+				_ => debug!("Unexpected field `{name}` in X-Matrix Authorization header"),
+			}
+		}
+
+		Some(Self {
+			origin: origin?,
+			key: key?,
+			sig: sig?,
+			destination,
+		})
+	}
+
+	fn encode(&self) -> http::HeaderValue { todo!() }
+}

src/api/server_server.rs

@@ -44,19 +44,23 @@ use ruma::{
 	},
 	serde::{Base64, JsonObject, Raw},
 	to_device::DeviceIdOrAllDevices,
-	uint, user_id, CanonicalJsonObject, CanonicalJsonValue, EventId, MilliSecondsSinceUnixEpoch, OwnedEventId,
+	uint, user_id, CanonicalJsonValue, EventId, MilliSecondsSinceUnixEpoch, OwnedEventId, OwnedServerName,
-	OwnedRoomId, OwnedServerName, OwnedServerSigningKeyId, OwnedUserId, RoomId, RoomVersionId, ServerName,
+	OwnedServerSigningKeyId, OwnedUserId, RoomId, RoomVersionId, ServerName,
 };
 use serde_json::value::{to_raw_value, RawValue as RawJsonValue};
 use tokio::sync::RwLock;
 use tracing::{debug, error, trace, warn};
 
 use crate::{
-	api::client_server::{self, claim_keys_helper, get_keys_helper},
+	client_server::{self, claim_keys_helper, get_keys_helper},
 	debug_error,
-	service::pdu::{gen_event_id_canonical_json, PduBuilder},
+	service::{
+		pdu::{gen_event_id_canonical_json, PduBuilder},
+		rooms::event_handler::parse_incoming_pdu,
+		server_is_ours, user_is_local,
+	},
 	services,
-	utils::{self, server_name::server_is_ours, user_id::user_is_local},
+	utils::{self},
 	Error, PduEvent, Result, Ruma,
 };
 
@@ -196,32 +200,6 @@ pub(crate) async fn get_public_rooms_route(
 	})
 }
 
-pub(crate) fn parse_incoming_pdu(pdu: &RawJsonValue) -> Result<(OwnedEventId, CanonicalJsonObject, OwnedRoomId)> {
-	let value: CanonicalJsonObject = serde_json::from_str(pdu.get()).map_err(|e| {
-		warn!("Error parsing incoming event {:?}: {:?}", pdu, e);
-		Error::BadServerResponse("Invalid PDU in server response")
-	})?;
-
-	let room_id: OwnedRoomId = value
-		.get("room_id")
-		.and_then(|id| RoomId::parse(id.as_str()?).ok())
-		.ok_or(Error::BadRequest(ErrorKind::InvalidParam, "Invalid room id in pdu"))?;
-
-	let Ok(room_version_id) = services().rooms.state.get_room_version(&room_id) else {
-		return Err(Error::Err(format!("Server is not in room {room_id}")));
-	};
-
-	let Ok((event_id, value)) = gen_event_id_canonical_json(pdu, &room_version_id) else {
-		// Event could not be converted to canonical json
-		return Err(Error::BadRequest(
-			ErrorKind::InvalidParam,
-			"Could not convert event to canonical json.",
-		));
-	};
-
-	Ok((event_id, value, room_id))
-}
-
 /// # `PUT /_matrix/federation/v1/send/{txnId}`
 ///
 /// Push EDUs and PDUs to this server.

src/bin/Cargo.toml

@@ -0,0 +1,123 @@
+[package]
+# TODO: when can we rename to conduwuit?
+name = "conduit"
+default-run = "conduit"
+description.workspace = true
+license.workspace = true
+authors.workspace = true
+homepage.workspace = true
+repository.workspace = true
+readme.workspace = true
+version.workspace = true
+edition.workspace = true
+rust-version.workspace = true
+
+[package.metadata.deb]
+name = "conduwuit"
+maintainer = "strawberry <strawberry@puppygock.gay>"
+copyright = "2024, strawberry <strawberry@puppygock.gay>"
+license-file = ["LICENSE", "3"]
+depends = "$auto, ca-certificates"
+extended-description = """\
+a cool hard fork of Conduit, a Matrix homeserver written in Rust"""
+section = "net"
+priority = "optional"
+conf-files = ["/etc/conduwuit/conduwuit.toml"]
+maintainer-scripts = "debian/"
+systemd-units = { unit-name = "conduwuit", start = false }
+assets = [
+	["debian/README.md", "usr/share/doc/conduwuit/README.Debian", "644"],
+	["README.md", "usr/share/doc/conduwuit/", "644"],
+	["target/release/conduwuit", "usr/sbin/conduwuit", "755"],
+	["conduwuit-example.toml", "etc/conduwuit/conduwuit.toml", "640"],
+]
+
+[features]
+default = [
+	"sentry_telemetry",
+	"release_max_log_level",
+]
+
+# increases performance, reduces build times, and reduces binary size by not compiling or
+# genreating code for log level filters that users will generally not use (debug and trace)
+release_max_log_level = [
+	"tracing/max_level_trace",
+	"tracing/release_max_level_info",
+	"log/max_level_trace",
+	"log/release_max_level_info",
+]
+sentry_telemetry = [
+	"dep:sentry",
+	"dep:sentry-tracing",
+	"dep:sentry-tower",
+]
+# enable the tokio_console server ncompatible with release_max_log_level
+tokio_console = [
+	"dep:console-subscriber",
+	"tokio/tracing",
+]
+perf_measurements = [
+	"dep:opentelemetry",
+	"dep:tracing-flame",
+	"dep:tracing-opentelemetry",
+	"dep:opentelemetry_sdk",
+	"dep:opentelemetry-jaeger",
+]
+jemalloc = [
+	"dep:tikv-jemallocator",
+]
+panic_trap = []
+mods = []
+
+[dependencies]
+conduit-router.workspace = true
+conduit-admin.workspace = true
+conduit-api.workspace = true
+conduit-service.workspace = true
+conduit-database.workspace = true
+conduit-core.workspace = true
+
+tokio.workspace = true
+log.workspace = true
+tracing.workspace = true
+tracing-subscriber.workspace = true
+clap.workspace = true
+num_cpus.workspace = true
+
+opentelemetry.workspace = true
+opentelemetry.optional = true
+tracing-flame.workspace = true
+tracing-flame.optional = true
+tracing-opentelemetry.workspace = true
+tracing-opentelemetry.optional = true
+opentelemetry_sdk.workspace = true
+opentelemetry_sdk.optional = true
+opentelemetry-jaeger.workspace = true
+opentelemetry-jaeger.optional = true
+
+sentry.workspace = true
+sentry.optional = true
+sentry-tracing.workspace = true
+sentry-tracing.optional = true
+sentry-tower.workspace = true
+sentry-tower.optional = true
+
+tikv-jemallocator.workspace = true
+tikv-jemallocator.optional = true
+
+tokio-metrics.workspace = true
+tokio-metrics.optional = true
+
+console-subscriber.workspace = true
+console-subscriber.optional = true
+
+[target.'cfg(all(not(target_env = "msvc"), target_os = "linux"))'.dependencies]
+hardened_malloc-rs.workspace = true
+hardened_malloc-rs.optional = true
+
+[lints]
+workspace = true
+
+[[bin]]
+name = "conduit"
+path = "main.rs"

src/bin/main.rs

@@ -0,0 +1,96 @@
+mod mods;
+mod server;
+
+extern crate conduit_core as conduit;
+
+use std::{cmp, sync::Arc, time::Duration};
+
+use conduit::{debug_info, error, utils::clap, Error, Result};
+use server::Server;
+use tokio::runtime;
+
+const WORKER_NAME: &str = "conduwuit:worker";
+const WORKER_MIN: usize = 2;
+const WORKER_KEEPALIVE_MS: u64 = 2500;
+
+fn main() -> Result<(), Error> {
+	let args = clap::parse();
+	let runtime = runtime::Builder::new_multi_thread()
+		.enable_io()
+		.enable_time()
+		.thread_name(WORKER_NAME)
+		.worker_threads(cmp::max(WORKER_MIN, num_cpus::get()))
+		.thread_keep_alive(Duration::from_millis(WORKER_KEEPALIVE_MS))
+		.build()
+		.expect("built runtime");
+
+	let handle = runtime.handle();
+	let server: Arc<Server> = Server::build(args, Some(handle))?;
+	runtime.block_on(async { async_main(server.clone()).await })?;
+
+	// explicit drop here to trace thread and tls dtors
+	drop(runtime);
+
+	debug_info!("Exit");
+	Ok(())
+}
+
+/// Operate the server normally in release-mode static builds. This will start,
+/// run and stop the server within the asynchronous runtime.
+#[cfg(not(feature = "mods"))]
+async fn async_main(server: Arc<Server>) -> Result<(), Error> {
+	extern crate conduit_router as router;
+	use tracing::error;
+
+	if let Err(error) = router::start(&server.server).await {
+		error!("Critical error starting server: {error}");
+		return Err(error);
+	}
+
+	if let Err(error) = router::run(&server.server).await {
+		error!("Critical error running server: {error}");
+		return Err(error);
+	}
+
+	if let Err(error) = router::stop(&server.server).await {
+		error!("Critical error stopping server: {error}");
+		return Err(error);
+	}
+
+	debug_info!("Exit runtime");
+	Ok(())
+}
+
+/// Operate the server in developer-mode dynamic builds. This will start, run,
+/// and hot-reload portions of the server as-needed before returning for an
+/// actual shutdown. This is not available in release-mode or static builds.
+#[cfg(feature = "mods")]
+async fn async_main(server: Arc<Server>) -> Result<(), Error> {
+	let mut starts = true;
+	let mut reloads = true;
+	while reloads {
+		if let Err(error) = mods::open(&server).await {
+			error!("Loading router: {error}");
+			return Err(error);
+		}
+
+		let result = mods::run(&server, starts).await;
+		if let Ok(result) = result {
+			(starts, reloads) = result;
+		}
+
+		let force = !reloads || result.is_err();
+		if let Err(error) = mods::close(&server, force).await {
+			error!("Unloading router: {error}");
+			return Err(error);
+		}
+
+		if let Err(error) = result {
+			error!("{error}");
+			return Err(error);
+		}
+	}
+
+	debug_info!("Exit runtime");
+	Ok(())
+}

src/bin/mods.rs

@@ -0,0 +1,129 @@
+#![cfg(feature = "mods")]
+#[cfg(not(any(clippy, debug_assertions, doctest, test)))]
+compile_error!("Feature 'mods' is only available in developer builds");
+
+use std::{
+	future::Future,
+	pin::Pin,
+	sync::{atomic::Ordering, Arc},
+};
+
+use conduit::{mods, Error, Result};
+use tracing::{debug, error};
+
+use crate::Server;
+
+type RunFuncResult = Pin<Box<dyn Future<Output = Result<(), Error>>>>;
+type RunFuncProto = fn(&Arc<conduit::Server>) -> RunFuncResult;
+
+const RESTART_THRESH: &str = "conduit_service";
+const MODULE_NAMES: &[&str] = &[
+	//"conduit_core",
+	"conduit_database",
+	"conduit_service",
+	"conduit_api",
+	"conduit_admin",
+	"conduit_router",
+];
+
+#[cfg(feature = "panic_trap")]
+conduit::mod_init! {{
+	conduit::debug::set_panic_trap();
+}}
+
+pub(crate) async fn run(server: &Arc<Server>, starts: bool) -> Result<(bool, bool), Error> {
+	let main_lock = server.mods.read().await;
+	let main_mod = (*main_lock).last().expect("main module loaded");
+	if starts {
+		let start = main_mod.get::<RunFuncProto>("start")?;
+		if let Err(error) = start(&server.server).await {
+			error!("Starting server: {error}");
+			return Err(error);
+		}
+	}
+	let run = main_mod.get::<RunFuncProto>("run")?;
+	if let Err(error) = run(&server.server).await {
+		error!("Running server: {error}");
+		return Err(error);
+	}
+	let reloads = server.server.reload.swap(false, Ordering::AcqRel);
+	let stops = !reloads || stale(server).await? <= restart_thresh();
+	let starts = reloads && stops;
+	if stops {
+		let stop = main_mod.get::<RunFuncProto>("stop")?;
+		if let Err(error) = stop(&server.server).await {
+			error!("Stopping server: {error}");
+			return Err(error);
+		}
+	}
+
+	Ok((starts, reloads))
+}
+
+pub(crate) async fn open(server: &Arc<Server>) -> Result<usize, Error> {
+	let mut mods_lock = server.mods.write().await;
+	let mods: &mut Vec<mods::Module> = &mut mods_lock;
+	debug!(
+		available = %available(),
+		loaded = %mods.len(),
+		"Loading modules",
+	);
+
+	for (i, name) in MODULE_NAMES.iter().enumerate() {
+		if mods.get(i).is_none() {
+			mods.push(mods::Module::from_name(name)?);
+		}
+	}
+
+	Ok(mods.len())
+}
+
+pub(crate) async fn close(server: &Arc<Server>, force: bool) -> Result<usize, Error> {
+	let stale = stale_count(server).await;
+	let mut mods_lock = server.mods.write().await;
+	let mods: &mut Vec<mods::Module> = &mut mods_lock;
+	debug!(
+		available = %available(),
+		loaded = %mods.len(),
+		stale = %stale,
+		force,
+		"Unloading modules",
+	);
+
+	while mods.last().is_some() {
+		let module = &mods.last().expect("module");
+		if force || module.deleted()? {
+			mods.pop();
+		} else {
+			break;
+		}
+	}
+
+	Ok(mods.len())
+}
+
+async fn stale_count(server: &Arc<Server>) -> usize {
+	let watermark = stale(server).await.unwrap_or(available());
+	available() - watermark
+}
+
+async fn stale(server: &Arc<Server>) -> Result<usize, Error> {
+	let mods_lock = server.mods.read().await;
+	let mods: &Vec<mods::Module> = &mods_lock;
+	for (i, module) in mods.iter().enumerate() {
+		if module.deleted()? {
+			return Ok(i);
+		}
+	}
+
+	Ok(mods.len())
+}
+
+fn restart_thresh() -> usize {
+	MODULE_NAMES
+		.iter()
+		.position(|&name| name.ends_with(RESTART_THRESH))
+		.unwrap_or(MODULE_NAMES.len())
+}
+
+const fn available() -> usize { MODULE_NAMES.len() }

src/bin/server.rs

@@ -0,0 +1,186 @@
+use std::sync::Arc;
+
+use conduit::{
+	conduwuit_version,
+	config::Config,
+	info,
+	log::{LogLevelReloadHandles, ReloadHandle},
+	utils::{clap, maximize_fd_limit},
+	Error, Result,
+};
+use tokio::runtime;
+use tracing_subscriber::{prelude::*, reload, EnvFilter, Registry};
+
+/// Server runtime state; complete
+pub(crate) struct Server {
+	/// Server runtime state; public portion
+	pub(crate) server: Arc<conduit::Server>,
+
+	_tracing_flame_guard: TracingFlameGuard,
+
+	#[cfg(feature = "sentry_telemetry")]
+	_sentry_guard: Option<sentry::ClientInitGuard>,
+
+	// Module instances; TODO: move to mods::loaded mgmt vector
+	#[cfg(feature = "mods")]
+	pub(crate) mods: tokio::sync::RwLock<Vec<conduit::mods::Module>>,
+}
+
+impl Server {
+	pub(crate) fn build(args: clap::Args, runtime: Option<&runtime::Handle>) -> Result<Arc<Server>, Error> {
+		let config = Config::new(args.config)?;
+		#[cfg(feature = "sentry_telemetry")]
+		let sentry_guard = init_sentry(&config);
+		let (tracing_reload_handle, tracing_flame_guard) = init_tracing(&config);
+
+		config.check()?;
+		#[cfg(unix)]
+		maximize_fd_limit().expect("Unable to increase maximum soft and hard file descriptor limit");
+		info!(
+			server_name = %config.server_name,
+			database_path = ?config.database_path,
+			log_levels = %config.log,
+			"{}",
+			conduwuit_version(),
+		);
+
+		Ok(Arc::new(Server {
+			server: Arc::new(conduit::Server::new(config, runtime.cloned(), tracing_reload_handle)),
+
+			_tracing_flame_guard: tracing_flame_guard,
+
+			#[cfg(feature = "sentry_telemetry")]
+			_sentry_guard: sentry_guard,
+
+			#[cfg(feature = "mods")]
+			mods: tokio::sync::RwLock::new(Vec::new()),
+		}))
+	}
+}
+
+#[cfg(feature = "sentry_telemetry")]
+fn init_sentry(config: &Config) -> Option<sentry::ClientInitGuard> {
+	if !config.sentry {
+		return None;
+	}
+
+	let sentry_endpoint = config
+		.sentry_endpoint
+		.as_ref()
+		.expect("init_sentry should only be called if sentry is enabled and this is not None")
+		.as_str();
+
+	let server_name = if config.sentry_send_server_name {
+		Some(config.server_name.to_string().into())
+	} else {
+		None
+	};
+
+	Some(sentry::init((
+		sentry_endpoint,
+		sentry::ClientOptions {
+			release: sentry::release_name!(),
+			traces_sample_rate: config.sentry_traces_sample_rate,
+			server_name,
+			..Default::default()
+		},
+	)))
+}
+
+#[cfg(feature = "perf_measurements")]
+type TracingFlameGuard = Option<tracing_flame::FlushGuard<std::io::BufWriter<std::fs::File>>>;
+#[cfg(not(feature = "perf_measurements"))]
+type TracingFlameGuard = ();
+
+// clippy thinks the filter_layer clones are redundant if the next usage is
+// behind a disabled feature.
+#[allow(clippy::redundant_clone)]
+fn init_tracing(config: &Config) -> (LogLevelReloadHandles, TracingFlameGuard) {
+	let registry = Registry::default();
+	let fmt_layer = tracing_subscriber::fmt::Layer::new();
+	let filter_layer = match EnvFilter::try_new(&config.log) {
+		Ok(s) => s,
+		Err(e) => {
+			eprintln!("It looks like your config is invalid. The following error occured while parsing it: {e}");
+			EnvFilter::try_new("warn").unwrap()
+		},
+	};
+
+	let mut reload_handles = Vec::<Box<dyn ReloadHandle<EnvFilter> + Send + Sync>>::new();
+	let subscriber = registry;
+
+	#[cfg(feature = "tokio_console")]
+	let subscriber = {
+		let console_layer = console_subscriber::spawn();
+		subscriber.with(console_layer)
+	};
+
+	let (fmt_reload_filter, fmt_reload_handle) = reload::Layer::new(filter_layer.clone());
+	reload_handles.push(Box::new(fmt_reload_handle));
+	let subscriber = subscriber.with(fmt_layer.with_filter(fmt_reload_filter));
+
+	#[cfg(feature = "sentry_telemetry")]
+	let subscriber = {
+		let sentry_layer = sentry_tracing::layer();
+		let (sentry_reload_filter, sentry_reload_handle) = reload::Layer::new(filter_layer.clone());
+		reload_handles.push(Box::new(sentry_reload_handle));
+		subscriber.with(sentry_layer.with_filter(sentry_reload_filter))
+	};
+
+	#[cfg(feature = "perf_measurements")]
+	let (subscriber, flame_guard) = {
+		let (flame_layer, flame_guard) = if config.tracing_flame {
+			let flame_filter = match EnvFilter::try_new(&config.tracing_flame_filter) {
+				Ok(flame_filter) => flame_filter,
+				Err(e) => panic!("tracing_flame_filter config value is invalid: {e}"),
+			};
+
+			let (flame_layer, flame_guard) =
+				match tracing_flame::FlameLayer::with_file(&config.tracing_flame_output_path) {
+					Ok(ok) => ok,
+					Err(e) => {
+						panic!("failed to initialize tracing-flame: {e}");
+					},
+				};
+			let flame_layer = flame_layer
+				.with_empty_samples(false)
+				.with_filter(flame_filter);
+			(Some(flame_layer), Some(flame_guard))
+		} else {
+			(None, None)
+		};
+
+		let jaeger_layer = if config.allow_jaeger {
+			opentelemetry::global::set_text_map_propagator(opentelemetry_jaeger::Propagator::new());
+			let tracer = opentelemetry_jaeger::new_agent_pipeline()
+				.with_auto_split_batch(true)
+				.with_service_name("conduwuit")
+				.install_batch(opentelemetry_sdk::runtime::Tokio)
+				.unwrap();
+			let telemetry = tracing_opentelemetry::layer().with_tracer(tracer);
+
+			let (jaeger_reload_filter, jaeger_reload_handle) = reload::Layer::new(filter_layer);
+			reload_handles.push(Box::new(jaeger_reload_handle));
+			Some(telemetry.with_filter(jaeger_reload_filter))
+		} else {
+			None
+		};
+
+		let subscriber = subscriber.with(flame_layer).with(jaeger_layer);
+		(subscriber, flame_guard)
+	};
+
+	#[cfg(not(feature = "perf_measurements"))]
+	#[cfg_attr(not(feature = "perf_measurements"), allow(clippy::let_unit_value))]
+	let flame_guard = ();
+
+	tracing::subscriber::set_global_default(subscriber).unwrap();
+
+	#[cfg(all(feature = "tokio_console", feature = "release_max_log_level"))]
+	tracing::error!(
+		"'tokio_console' feature and 'release_max_log_level' feature are incompatible, because console-subscriber \
+		 needs access to trace-level events. 'release_max_log_level' must be disabled to use tokio-console."
+	);
+
+	(LogLevelReloadHandles::new(reload_handles), flame_guard)
+}

src/core/Cargo.toml

@@ -0,0 +1,133 @@
+[package]
+name = "conduit_core"
+version.workspace = true
+edition.workspace = true
+
+[lib]
+path = "mod.rs"
+crate-type = [
+	"rlib",
+#	"dylib",
+]
+
+[features]
+default = [
+	"rocksdb",
+	"io_uring",
+	"jemalloc",
+	"gzip_compression",
+	"zstd_compression",
+	"brotli_compression",
+	"sentry_telemetry",
+	"release_max_log_level",
+]
+
+dev_release_log_level = []
+release_max_log_level = [
+	"tracing/max_level_trace",
+	"tracing/release_max_level_info",
+	"log/max_level_trace",
+	"log/release_max_level_info",
+]
+sqlite = [
+	"dep:rusqlite",
+	"dep:parking_lot",
+	"dep:thread_local",
+]
+rocksdb = [
+	"dep:rust-rocksdb",
+]
+jemalloc = [
+	"dep:tikv-jemalloc-sys",
+	"dep:tikv-jemalloc-ctl",
+	"dep:tikv-jemallocator",
+	"rust-rocksdb/jemalloc",
+]
+jemalloc_prof = [
+	"tikv-jemalloc-sys/profiling",
+]
+hardened_malloc = [
+	"dep:hardened_malloc-rs"
+]
+io_uring = [
+	"rust-rocksdb/io-uring",
+]
+zstd_compression = [
+	"rust-rocksdb/zstd",
+]
+gzip_compression = [
+	"reqwest/gzip",
+]
+brotli_compression = [
+	"reqwest/brotli",
+]
+perf_measurements = []
+sentry_telemetry = []
+mods = [
+	"dep:libloading"
+]
+panic_trap = []
+
+[dependencies]
+async-trait.workspace = true
+axum-server.workspace = true
+axum.workspace = true
+base64.workspace = true
+bytes.workspace = true
+clap.workspace = true
+cyborgtime.workspace = true
+either.workspace = true
+figment.workspace = true
+futures-util.workspace = true
+http-body-util.workspace = true
+http.workspace = true
+image.workspace = true
+infer.workspace = true
+ipaddress.workspace = true
+itertools.workspace = true
+libloading.workspace = true
+libloading.optional = true
+log.workspace = true
+lru-cache.workspace = true
+parking_lot.optional = true
+parking_lot.workspace = true
+rand.workspace = true
+regex.workspace = true
+reqwest.workspace = true
+ring.workspace = true
+ruma.workspace = true
+rusqlite.optional = true
+rusqlite.workspace = true
+rust-rocksdb.optional = true
+rust-rocksdb.workspace = true
+sanitize-filename.workspace = true
+serde_json.workspace = true
+serde_regex.workspace = true
+serde.workspace = true
+serde_yaml.workspace = true
+sha-1.workspace = true
+thiserror.workspace = true
+thread_local.optional = true
+thread_local.workspace = true
+tikv-jemallocator.optional = true
+tikv-jemallocator.workspace = true
+tikv-jemalloc-ctl.optional = true
+tikv-jemalloc-ctl.workspace = true
+tikv-jemalloc-sys.optional = true
+tikv-jemalloc-sys.workspace = true
+tokio.workspace = true
+tracing-subscriber.workspace = true
+tracing.workspace = true
+url.workspace = true
+zstd.optional = true
+zstd.workspace = true
+
+[target.'cfg(unix)'.dependencies]
+nix.workspace = true
+
+[target.'cfg(all(not(target_env = "msvc"), target_os = "linux"))'.dependencies]
+hardened_malloc-rs.workspace = true
+hardened_malloc-rs.optional = true
+
+[lints]
+workspace = true

src/core/alloc/default.rs

@@ -0,0 +1,9 @@
+//! Default allocator with no special features
+
+/// Always returns the empty string
+#[must_use]
+pub fn memory_stats() -> String { Default::default() }
+
+/// Always returns the empty string
+#[must_use]
+pub fn memory_usage() -> String { Default::default() }

src/core/alloc/hardened.rs

@@ -0,0 +1,10 @@
+#[global_allocator]
+static HMALLOC: hardened_malloc_rs::HardenedMalloc = hardened_malloc_rs::HardenedMalloc;
+
+#[must_use]
+pub fn memory_usage() -> String {
+	String::default() //TODO: get usage
+}
+
+#[must_use]
+pub fn memory_stats() -> String { "Extended statistics are not available from hardened_malloc.".to_owned() }

src/core/alloc/je.rs

@@ -7,7 +7,8 @@ use tikv_jemallocator as jemalloc;
 #[global_allocator]
 static JEMALLOC: jemalloc::Jemalloc = jemalloc::Jemalloc;
 
-pub(crate) fn memory_usage() -> String {
+#[must_use]
+pub fn memory_usage() -> String {
 	use mallctl::stats;
 	let allocated = stats::allocated::read().unwrap_or_default() as f64 / 1024.0 / 1024.0;
 	let active = stats::active::read().unwrap_or_default() as f64 / 1024.0 / 1024.0;
@@ -21,7 +22,8 @@ pub(crate) fn memory_usage() -> String {
 	)
 }
 
-pub(crate) fn memory_stats() -> String {
+#[must_use]
+pub fn memory_stats() -> String {
 	const MAX_LENGTH: usize = 65536 - 4096;
 
 	let opts_s = "d";

src/core/alloc/mod.rs

@@ -2,24 +2,24 @@
 
 // jemalloc
 #[cfg(all(not(target_env = "msvc"), feature = "jemalloc", not(feature = "hardened_malloc")))]
-mod je;
+pub mod je;
 #[cfg(all(not(target_env = "msvc"), feature = "jemalloc", not(feature = "hardened_malloc")))]
-pub(crate) use je::{memory_stats, memory_usage};
+pub use je::{memory_stats, memory_usage};
 
 // hardened_malloc
 #[cfg(all(not(target_env = "msvc"), feature = "hardened_malloc", target_os = "linux", not(feature = "jemalloc")))]
-mod hardened;
+pub mod hardened;
 #[cfg(all(not(target_env = "msvc"), feature = "hardened_malloc", target_os = "linux", not(feature = "jemalloc")))]
-pub(crate) use hardened::{memory_stats, memory_usage};
+pub use hardened::{memory_stats, memory_usage};
 
 // default, enabled when none or multiple of the above are enabled
 #[cfg(any(
 	not(any(feature = "jemalloc", feature = "hardened_malloc")),
 	all(feature = "jemalloc", feature = "hardened_malloc"),
 ))]
-mod default;
+pub mod default;
 #[cfg(any(
 	not(any(feature = "jemalloc", feature = "hardened_malloc")),
 	all(feature = "jemalloc", feature = "hardened_malloc"),
 ))]
-pub(crate) use default::{memory_stats, memory_usage};
+pub use default::{memory_stats, memory_usage};

src/core/config/check.rs

@@ -3,9 +3,9 @@ use std::path::Path; // not unix specific, just only for UNIX sockets stuff and
 
 use tracing::{debug, error, info, warn};
 
-use crate::{utils::error::Error, Config};
+use crate::{error::Error, Config};
 
-pub(crate) fn check(config: &Config) -> Result<(), Error> {
+pub fn check(config: &Config) -> Result<(), Error> {
 	config.warn_deprecated();
 	config.warn_unknown_key();
 

src/core/config/mod.rs

@@ -22,11 +22,12 @@ use serde::{de::IgnoredAny, Deserialize};
 use tracing::{debug, error, warn};
 use url::Url;
 
-use self::{check::check, proxy::ProxyConfig};
+pub use self::check::check;
-use crate::utils::error::Error;
+use self::proxy::ProxyConfig;
+use crate::error::Error;
 
-pub(crate) mod check;
+pub mod check;
-mod proxy;
+pub mod proxy;
 
 #[derive(Deserialize, Clone, Debug)]
 #[serde(transparent)]
@@ -38,310 +39,310 @@ struct ListeningPort {
 /// all the config options for conduwuit
 #[derive(Clone, Debug, Deserialize)]
 #[allow(clippy::struct_excessive_bools)]
-pub(crate) struct Config {
+pub struct Config {
 	/// [`IpAddr`] conduwuit will listen on (can be IPv4 or IPv6)
 	#[serde(default = "default_address")]
-	pub(crate) address: IpAddr,
+	pub address: IpAddr,
 	/// default TCP port(s) conduwuit will listen on
 	#[serde(default = "default_port")]
 	port: ListeningPort,
-	pub(crate) tls: Option<TlsConfig>,
+	pub tls: Option<TlsConfig>,
-	pub(crate) unix_socket_path: Option<PathBuf>,
+	pub unix_socket_path: Option<PathBuf>,
 	#[serde(default = "default_unix_socket_perms")]
-	pub(crate) unix_socket_perms: u32,
+	pub unix_socket_perms: u32,
-	pub(crate) server_name: OwnedServerName,
+	pub server_name: OwnedServerName,
 	#[serde(default = "default_database_backend")]
-	pub(crate) database_backend: String,
+	pub database_backend: String,
-	pub(crate) database_path: PathBuf,
+	pub database_path: PathBuf,
-	pub(crate) database_backup_path: Option<PathBuf>,
+	pub database_backup_path: Option<PathBuf>,
 	#[serde(default = "default_database_backups_to_keep")]
-	pub(crate) database_backups_to_keep: i16,
+	pub database_backups_to_keep: i16,
 	#[serde(default = "default_db_cache_capacity_mb")]
-	pub(crate) db_cache_capacity_mb: f64,
+	pub db_cache_capacity_mb: f64,
 	#[serde(default = "default_new_user_displayname_suffix")]
-	pub(crate) new_user_displayname_suffix: String,
+	pub new_user_displayname_suffix: String,
 	#[serde(default)]
-	pub(crate) allow_check_for_updates: bool,
+	pub allow_check_for_updates: bool,
 
 	#[serde(default = "default_pdu_cache_capacity")]
-	pub(crate) pdu_cache_capacity: u32,
+	pub pdu_cache_capacity: u32,
 	#[serde(default = "default_conduit_cache_capacity_modifier")]
-	pub(crate) conduit_cache_capacity_modifier: f64,
+	pub conduit_cache_capacity_modifier: f64,
 	#[serde(default = "default_auth_chain_cache_capacity")]
-	pub(crate) auth_chain_cache_capacity: u32,
+	pub auth_chain_cache_capacity: u32,
 	#[serde(default = "default_shorteventid_cache_capacity")]
-	pub(crate) shorteventid_cache_capacity: u32,
+	pub shorteventid_cache_capacity: u32,
 	#[serde(default = "default_eventidshort_cache_capacity")]
-	pub(crate) eventidshort_cache_capacity: u32,
+	pub eventidshort_cache_capacity: u32,
 	#[serde(default = "default_shortstatekey_cache_capacity")]
-	pub(crate) shortstatekey_cache_capacity: u32,
+	pub shortstatekey_cache_capacity: u32,
 	#[serde(default = "default_statekeyshort_cache_capacity")]
-	pub(crate) statekeyshort_cache_capacity: u32,
+	pub statekeyshort_cache_capacity: u32,
 	#[serde(default = "default_server_visibility_cache_capacity")]
-	pub(crate) server_visibility_cache_capacity: u32,
+	pub server_visibility_cache_capacity: u32,
 	#[serde(default = "default_user_visibility_cache_capacity")]
-	pub(crate) user_visibility_cache_capacity: u32,
+	pub user_visibility_cache_capacity: u32,
 	#[serde(default = "default_stateinfo_cache_capacity")]
-	pub(crate) stateinfo_cache_capacity: u32,
+	pub stateinfo_cache_capacity: u32,
 	#[serde(default = "default_roomid_spacehierarchy_cache_capacity")]
-	pub(crate) roomid_spacehierarchy_cache_capacity: u32,
+	pub roomid_spacehierarchy_cache_capacity: u32,
 
 	#[serde(default = "default_cleanup_second_interval")]
-	pub(crate) cleanup_second_interval: u32,
+	pub cleanup_second_interval: u32,
 
 	#[serde(default = "default_dns_cache_entries")]
-	pub(crate) dns_cache_entries: u32,
+	pub dns_cache_entries: u32,
 	#[serde(default = "default_dns_min_ttl")]
-	pub(crate) dns_min_ttl: u64,
+	pub dns_min_ttl: u64,
 	#[serde(default = "default_dns_min_ttl_nxdomain")]
-	pub(crate) dns_min_ttl_nxdomain: u64,
+	pub dns_min_ttl_nxdomain: u64,
 	#[serde(default = "default_dns_attempts")]
-	pub(crate) dns_attempts: u16,
+	pub dns_attempts: u16,
 	#[serde(default = "default_dns_timeout")]
-	pub(crate) dns_timeout: u64,
+	pub dns_timeout: u64,
 	#[serde(default = "true_fn")]
-	pub(crate) dns_tcp_fallback: bool,
+	pub dns_tcp_fallback: bool,
 	#[serde(default = "true_fn")]
-	pub(crate) query_all_nameservers: bool,
+	pub query_all_nameservers: bool,
 	#[serde(default)]
-	pub(crate) query_over_tcp_only: bool,
+	pub query_over_tcp_only: bool,
 	#[serde(default = "default_ip_lookup_strategy")]
-	pub(crate) ip_lookup_strategy: u8,
+	pub ip_lookup_strategy: u8,
 
 	#[serde(default = "default_max_request_size")]
-	pub(crate) max_request_size: u32,
+	pub max_request_size: u32,
 	#[serde(default = "default_max_fetch_prev_events")]
-	pub(crate) max_fetch_prev_events: u16,
+	pub max_fetch_prev_events: u16,
 
 	#[serde(default = "default_request_conn_timeout")]
-	pub(crate) request_conn_timeout: u64,
+	pub request_conn_timeout: u64,
 	#[serde(default = "default_request_timeout")]
-	pub(crate) request_timeout: u64,
+	pub request_timeout: u64,
 	#[serde(default = "default_request_total_timeout")]
-	pub(crate) request_total_timeout: u64,
+	pub request_total_timeout: u64,
 	#[serde(default = "default_request_idle_timeout")]
-	pub(crate) request_idle_timeout: u64,
+	pub request_idle_timeout: u64,
 	#[serde(default = "default_request_idle_per_host")]
-	pub(crate) request_idle_per_host: u16,
+	pub request_idle_per_host: u16,
 	#[serde(default = "default_well_known_conn_timeout")]
-	pub(crate) well_known_conn_timeout: u64,
+	pub well_known_conn_timeout: u64,
 	#[serde(default = "default_well_known_timeout")]
-	pub(crate) well_known_timeout: u64,
+	pub well_known_timeout: u64,
 	#[serde(default = "default_federation_timeout")]
-	pub(crate) federation_timeout: u64,
+	pub federation_timeout: u64,
 	#[serde(default = "default_federation_idle_timeout")]
-	pub(crate) federation_idle_timeout: u64,
+	pub federation_idle_timeout: u64,
 	#[serde(default = "default_federation_idle_per_host")]
-	pub(crate) federation_idle_per_host: u16,
+	pub federation_idle_per_host: u16,
 	#[serde(default = "default_sender_timeout")]
-	pub(crate) sender_timeout: u64,
+	pub sender_timeout: u64,
 	#[serde(default = "default_sender_idle_timeout")]
-	pub(crate) sender_idle_timeout: u64,
+	pub sender_idle_timeout: u64,
 	#[serde(default = "default_sender_retry_backoff_limit")]
-	pub(crate) sender_retry_backoff_limit: u64,
+	pub sender_retry_backoff_limit: u64,
 	#[serde(default = "default_appservice_timeout")]
-	pub(crate) appservice_timeout: u64,
+	pub appservice_timeout: u64,
 	#[serde(default = "default_appservice_idle_timeout")]
-	pub(crate) appservice_idle_timeout: u64,
+	pub appservice_idle_timeout: u64,
 	#[serde(default = "default_pusher_idle_timeout")]
-	pub(crate) pusher_idle_timeout: u64,
+	pub pusher_idle_timeout: u64,
 
 	#[serde(default)]
-	pub(crate) allow_registration: bool,
+	pub allow_registration: bool,
 	#[serde(default)]
-	pub(crate) yes_i_am_very_very_sure_i_want_an_open_registration_server_prone_to_abuse: bool,
+	pub yes_i_am_very_very_sure_i_want_an_open_registration_server_prone_to_abuse: bool,
-	pub(crate) registration_token: Option<String>,
+	pub registration_token: Option<String>,
 	#[serde(default = "true_fn")]
-	pub(crate) allow_encryption: bool,
+	pub allow_encryption: bool,
 	#[serde(default = "true_fn")]
-	pub(crate) allow_federation: bool,
+	pub allow_federation: bool,
 	#[serde(default)]
-	pub(crate) allow_public_room_directory_over_federation: bool,
+	pub allow_public_room_directory_over_federation: bool,
 	#[serde(default)]
-	pub(crate) allow_public_room_directory_without_auth: bool,
+	pub allow_public_room_directory_without_auth: bool,
 	#[serde(default)]
-	pub(crate) lockdown_public_room_directory: bool,
+	pub lockdown_public_room_directory: bool,
 	#[serde(default)]
-	pub(crate) allow_device_name_federation: bool,
+	pub allow_device_name_federation: bool,
 	#[serde(default = "true_fn")]
-	pub(crate) allow_profile_lookup_federation_requests: bool,
+	pub allow_profile_lookup_federation_requests: bool,
 	#[serde(default = "true_fn")]
-	pub(crate) allow_room_creation: bool,
+	pub allow_room_creation: bool,
 	#[serde(default = "true_fn")]
-	pub(crate) allow_unstable_room_versions: bool,
+	pub allow_unstable_room_versions: bool,
 	#[serde(default = "default_default_room_version")]
-	pub(crate) default_room_version: RoomVersionId,
+	pub default_room_version: RoomVersionId,
 	#[serde(default)]
-	pub(crate) well_known: WellKnownConfig,
+	pub well_known: WellKnownConfig,
 	#[serde(default)]
 	#[cfg(feature = "perf_measurements")]
-	pub(crate) allow_jaeger: bool,
+	pub allow_jaeger: bool,
 	#[serde(default)]
 	#[cfg(feature = "perf_measurements")]
-	pub(crate) tracing_flame: bool,
+	pub tracing_flame: bool,
 	#[serde(default = "default_tracing_flame_filter")]
 	#[cfg(feature = "perf_measurements")]
-	pub(crate) tracing_flame_filter: String,
+	pub tracing_flame_filter: String,
 	#[serde(default = "default_tracing_flame_output_path")]
 	#[cfg(feature = "perf_measurements")]
-	pub(crate) tracing_flame_output_path: String,
+	pub tracing_flame_output_path: String,
 	#[serde(default)]
-	pub(crate) proxy: ProxyConfig,
+	pub proxy: ProxyConfig,
-	pub(crate) jwt_secret: Option<String>,
+	pub jwt_secret: Option<String>,
 	#[serde(default = "default_trusted_servers")]
-	pub(crate) trusted_servers: Vec<OwnedServerName>,
+	pub trusted_servers: Vec<OwnedServerName>,
 	#[serde(default = "true_fn")]
-	pub(crate) query_trusted_key_servers_first: bool,
+	pub query_trusted_key_servers_first: bool,
 	#[serde(default = "default_log")]
-	pub(crate) log: String,
+	pub log: String,
 	#[serde(default)]
-	pub(crate) turn_username: String,
+	pub turn_username: String,
 	#[serde(default)]
-	pub(crate) turn_password: String,
+	pub turn_password: String,
 	#[serde(default = "Vec::new")]
-	pub(crate) turn_uris: Vec<String>,
+	pub turn_uris: Vec<String>,
 	#[serde(default)]
-	pub(crate) turn_secret: String,
+	pub turn_secret: String,
 	#[serde(default = "default_turn_ttl")]
-	pub(crate) turn_ttl: u64,
+	pub turn_ttl: u64,
 
 	#[serde(default = "Vec::new")]
-	pub(crate) auto_join_rooms: Vec<OwnedRoomId>,
+	pub auto_join_rooms: Vec<OwnedRoomId>,
 	#[serde(default)]
-	pub(crate) auto_deactivate_banned_room_attempts: bool,
+	pub auto_deactivate_banned_room_attempts: bool,
 
 	#[serde(default = "default_rocksdb_log_level")]
-	pub(crate) rocksdb_log_level: String,
+	pub rocksdb_log_level: String,
 	#[serde(default)]
-	pub(crate) rocksdb_log_stderr: bool,
+	pub rocksdb_log_stderr: bool,
 	#[serde(default = "default_rocksdb_max_log_file_size")]
-	pub(crate) rocksdb_max_log_file_size: usize,
+	pub rocksdb_max_log_file_size: usize,
 	#[serde(default = "default_rocksdb_log_time_to_roll")]
-	pub(crate) rocksdb_log_time_to_roll: usize,
+	pub rocksdb_log_time_to_roll: usize,
 	#[serde(default)]
-	pub(crate) rocksdb_optimize_for_spinning_disks: bool,
+	pub rocksdb_optimize_for_spinning_disks: bool,
 	#[serde(default = "true_fn")]
-	pub(crate) rocksdb_direct_io: bool,
+	pub rocksdb_direct_io: bool,
 	#[serde(default = "default_rocksdb_parallelism_threads")]
-	pub(crate) rocksdb_parallelism_threads: usize,
+	pub rocksdb_parallelism_threads: usize,
 	#[serde(default = "default_rocksdb_max_log_files")]
-	pub(crate) rocksdb_max_log_files: usize,
+	pub rocksdb_max_log_files: usize,
 	#[serde(default = "default_rocksdb_compression_algo")]
-	pub(crate) rocksdb_compression_algo: String,
+	pub rocksdb_compression_algo: String,
 	#[serde(default = "default_rocksdb_compression_level")]
-	pub(crate) rocksdb_compression_level: i32,
+	pub rocksdb_compression_level: i32,
 	#[serde(default = "default_rocksdb_bottommost_compression_level")]
-	pub(crate) rocksdb_bottommost_compression_level: i32,
+	pub rocksdb_bottommost_compression_level: i32,
 	#[serde(default)]
-	pub(crate) rocksdb_bottommost_compression: bool,
+	pub rocksdb_bottommost_compression: bool,
 	#[serde(default = "default_rocksdb_recovery_mode")]
-	pub(crate) rocksdb_recovery_mode: u8,
+	pub rocksdb_recovery_mode: u8,
 	#[serde(default)]
-	pub(crate) rocksdb_repair: bool,
+	pub rocksdb_repair: bool,
 	#[serde(default)]
-	pub(crate) rocksdb_read_only: bool,
+	pub rocksdb_read_only: bool,
 	#[serde(default)]
-	pub(crate) rocksdb_periodic_cleanup: bool,
+	pub rocksdb_periodic_cleanup: bool,
 	#[serde(default)]
-	pub(crate) rocksdb_compaction_prio_idle: bool,
+	pub rocksdb_compaction_prio_idle: bool,
 	#[serde(default = "true_fn")]
-	pub(crate) rocksdb_compaction_ioprio_idle: bool,
+	pub rocksdb_compaction_ioprio_idle: bool,
 
-	pub(crate) emergency_password: Option<String>,
+	pub emergency_password: Option<String>,
 
 	#[serde(default = "default_notification_push_path")]
-	pub(crate) notification_push_path: String,
+	pub notification_push_path: String,
 
 	#[serde(default = "true_fn")]
-	pub(crate) allow_local_presence: bool,
+	pub allow_local_presence: bool,
 	#[serde(default = "true_fn")]
-	pub(crate) allow_incoming_presence: bool,
+	pub allow_incoming_presence: bool,
 	#[serde(default = "true_fn")]
-	pub(crate) allow_outgoing_presence: bool,
+	pub allow_outgoing_presence: bool,
 	#[serde(default = "default_presence_idle_timeout_s")]
-	pub(crate) presence_idle_timeout_s: u64,
+	pub presence_idle_timeout_s: u64,
 	#[serde(default = "default_presence_offline_timeout_s")]
-	pub(crate) presence_offline_timeout_s: u64,
+	pub presence_offline_timeout_s: u64,
 	#[serde(default = "true_fn")]
-	pub(crate) presence_timeout_remote_users: bool,
+	pub presence_timeout_remote_users: bool,
 
 	#[serde(default = "true_fn")]
-	pub(crate) allow_incoming_read_receipts: bool,
+	pub allow_incoming_read_receipts: bool,
 	#[serde(default = "true_fn")]
-	pub(crate) allow_outgoing_read_receipts: bool,
+	pub allow_outgoing_read_receipts: bool,
 
 	#[serde(default = "true_fn")]
-	pub(crate) allow_outgoing_typing: bool,
+	pub allow_outgoing_typing: bool,
 	#[serde(default = "true_fn")]
-	pub(crate) allow_incoming_typing: bool,
+	pub allow_incoming_typing: bool,
 	#[serde(default = "default_typing_federation_timeout_s")]
-	pub(crate) typing_federation_timeout_s: u64,
+	pub typing_federation_timeout_s: u64,
 	#[serde(default = "default_typing_client_timeout_min_s")]
-	pub(crate) typing_client_timeout_min_s: u64,
+	pub typing_client_timeout_min_s: u64,
 	#[serde(default = "default_typing_client_timeout_max_s")]
-	pub(crate) typing_client_timeout_max_s: u64,
+	pub typing_client_timeout_max_s: u64,
 
 	#[serde(default)]
-	pub(crate) zstd_compression: bool,
+	pub zstd_compression: bool,
 	#[serde(default)]
-	pub(crate) gzip_compression: bool,
+	pub gzip_compression: bool,
 	#[serde(default)]
-	pub(crate) brotli_compression: bool,
+	pub brotli_compression: bool,
 
 	#[serde(default)]
-	pub(crate) allow_guest_registration: bool,
+	pub allow_guest_registration: bool,
 	#[serde(default)]
-	pub(crate) log_guest_registrations: bool,
+	pub log_guest_registrations: bool,
 	#[serde(default)]
-	pub(crate) allow_guests_auto_join_rooms: bool,
+	pub allow_guests_auto_join_rooms: bool,
 
 	#[serde(default = "Vec::new")]
-	pub(crate) prevent_media_downloads_from: Vec<OwnedServerName>,
+	pub prevent_media_downloads_from: Vec<OwnedServerName>,
 	#[serde(default = "Vec::new")]
-	pub(crate) forbidden_remote_server_names: Vec<OwnedServerName>,
+	pub forbidden_remote_server_names: Vec<OwnedServerName>,
 	#[serde(default = "Vec::new")]
-	pub(crate) forbidden_remote_room_directory_server_names: Vec<OwnedServerName>,
+	pub forbidden_remote_room_directory_server_names: Vec<OwnedServerName>,
 
 	#[serde(default = "default_ip_range_denylist")]
-	pub(crate) ip_range_denylist: Vec<String>,
+	pub ip_range_denylist: Vec<String>,
 
 	#[serde(default = "Vec::new")]
-	pub(crate) url_preview_domain_contains_allowlist: Vec<String>,
+	pub url_preview_domain_contains_allowlist: Vec<String>,
 	#[serde(default = "Vec::new")]
-	pub(crate) url_preview_domain_explicit_allowlist: Vec<String>,
+	pub url_preview_domain_explicit_allowlist: Vec<String>,
 	#[serde(default = "Vec::new")]
-	pub(crate) url_preview_domain_explicit_denylist: Vec<String>,
+	pub url_preview_domain_explicit_denylist: Vec<String>,
 	#[serde(default = "Vec::new")]
-	pub(crate) url_preview_url_contains_allowlist: Vec<String>,
+	pub url_preview_url_contains_allowlist: Vec<String>,
 	#[serde(default = "default_url_preview_max_spider_size")]
-	pub(crate) url_preview_max_spider_size: usize,
+	pub url_preview_max_spider_size: usize,
 	#[serde(default)]
-	pub(crate) url_preview_check_root_domain: bool,
+	pub url_preview_check_root_domain: bool,
 
 	#[serde(default = "RegexSet::empty")]
 	#[serde(with = "serde_regex")]
-	pub(crate) forbidden_alias_names: RegexSet,
+	pub forbidden_alias_names: RegexSet,
 
 	#[serde(default = "RegexSet::empty")]
 	#[serde(with = "serde_regex")]
-	pub(crate) forbidden_usernames: RegexSet,
+	pub forbidden_usernames: RegexSet,
 
 	#[serde(default = "true_fn")]
-	pub(crate) startup_netburst: bool,
+	pub startup_netburst: bool,
 	#[serde(default = "default_startup_netburst_keep")]
-	pub(crate) startup_netburst_keep: i64,
+	pub startup_netburst_keep: i64,
 
 	#[serde(default)]
-	pub(crate) block_non_admin_invites: bool,
+	pub block_non_admin_invites: bool,
 
 	#[serde(default)]
-	pub(crate) sentry: bool,
+	pub sentry: bool,
 	#[serde(default = "default_sentry_endpoint")]
-	pub(crate) sentry_endpoint: Option<Url>,
+	pub sentry_endpoint: Option<Url>,
 	#[serde(default)]
-	pub(crate) sentry_send_server_name: bool,
+	pub sentry_send_server_name: bool,
 	#[serde(default = "default_sentry_traces_sample_rate")]
-	pub(crate) sentry_traces_sample_rate: f32,
+	pub sentry_traces_sample_rate: f32,
 
 	#[serde(flatten)]
 	#[allow(clippy::zero_sized_map_values)] // this is a catchall, the map shouldn't be zero at runtime
@@ -349,24 +350,24 @@ pub(crate) struct Config {
 }
 
 #[derive(Clone, Debug, Deserialize)]
-pub(crate) struct TlsConfig {
+pub struct TlsConfig {
-	pub(crate) certs: String,
+	pub certs: String,
-	pub(crate) key: String,
+	pub key: String,
 	#[serde(default)]
 	/// Whether to listen and allow for HTTP and HTTPS connections (insecure!)
 	/// Only works / does something if the `axum_dual_protocol` feature flag was
 	/// built
-	pub(crate) dual_protocol: bool,
+	pub dual_protocol: bool,
 }
 
 #[derive(Clone, Debug, Deserialize, Default)]
-pub(crate) struct WellKnownConfig {
+pub struct WellKnownConfig {
-	pub(crate) client: Option<Url>,
+	pub client: Option<Url>,
-	pub(crate) server: Option<OwnedServerName>,
+	pub server: Option<OwnedServerName>,
-	pub(crate) support_page: Option<Url>,
+	pub support_page: Option<Url>,
-	pub(crate) support_role: Option<ContactRole>,
+	pub support_role: Option<ContactRole>,
-	pub(crate) support_email: Option<String>,
+	pub support_email: Option<String>,
-	pub(crate) support_mxid: Option<OwnedUserId>,
+	pub support_mxid: Option<OwnedUserId>,
 }
 
 const DEPRECATED_KEYS: &[&str] = &[
@@ -382,7 +383,7 @@ const DEPRECATED_KEYS: &[&str] = &[
 
 impl Config {
 	/// Initialize config
-	pub(crate) fn new(path: Option<PathBuf>) -> Result<Self, Error> {
+	pub fn new(path: Option<PathBuf>) -> Result<Self, Error> {
 		let raw_config = if let Some(config_file_env) = Env::var("CONDUIT_CONFIG") {
 			Figment::new()
 				.merge(Toml::file(config_file_env).nested())
@@ -469,7 +470,7 @@ impl Config {
 	}
 
 	#[must_use]
-	pub(crate) fn get_bind_addrs(&self) -> Vec<SocketAddr> {
+	pub fn get_bind_addrs(&self) -> Vec<SocketAddr> {
 		match &self.port.ports {
 			Left(port) => {
 				// Left is only 1 value, so make a vec with 1 value only
@@ -489,7 +490,7 @@ impl Config {
 		}
 	}
 
-	pub(crate) fn check(&self) -> Result<(), Error> { check(self) }
+	pub fn check(&self) -> Result<(), Error> { check(self) }
 }
 
 impl fmt::Display for Config {
@@ -1027,7 +1028,8 @@ fn default_rocksdb_compression_level() -> i32 { 32767 }
 fn default_rocksdb_bottommost_compression_level() -> i32 { 32767 }
 
 // I know, it's a great name
-pub(crate) fn default_default_room_version() -> RoomVersionId { RoomVersionId::V10 }
+#[must_use]
+pub fn default_default_room_version() -> RoomVersionId { RoomVersionId::V10 }
 
 fn default_ip_range_denylist() -> Vec<String> {
 	vec![

src/core/config/proxy.rs

@@ -30,7 +30,7 @@ use crate::Result;
 /// `ordinary.onion`, `matrix.myspecial.onion`, but not `hello.myspecial.onion`.
 #[derive(Clone, Default, Debug, Deserialize)]
 #[serde(rename_all = "snake_case")]
-pub(crate) enum ProxyConfig {
+pub enum ProxyConfig {
 	#[default]
 	None,
 	Global {
@@ -40,7 +40,7 @@ pub(crate) enum ProxyConfig {
 	ByDomain(Vec<PartialProxyConfig>),
 }
 impl ProxyConfig {
-	pub(crate) fn to_proxy(&self) -> Result<Option<Proxy>> {
+	pub fn to_proxy(&self) -> Result<Option<Proxy>> {
 		Ok(match self.clone() {
 			ProxyConfig::None => None,
 			ProxyConfig::Global {
@@ -55,7 +55,7 @@ impl ProxyConfig {
 }
 
 #[derive(Clone, Debug, Deserialize)]
-pub(crate) struct PartialProxyConfig {
+pub struct PartialProxyConfig {
 	#[serde(deserialize_with = "crate::utils::deserialize_from_str")]
 	url: Url,
 	#[serde(default)]
@@ -64,7 +64,8 @@ pub(crate) struct PartialProxyConfig {
 	exclude: Vec<WildCardedDomain>,
 }
 impl PartialProxyConfig {
-	pub(crate) fn for_url(&self, url: &Url) -> Option<&Url> {
+	#[must_use]
+	pub fn for_url(&self, url: &Url) -> Option<&Url> {
 		let domain = url.domain()?;
 		let mut included_because = None; // most specific reason it was included
 		let mut excluded_because = None; // most specific reason it was excluded

src/core/debug.rs

@@ -1,3 +1,7 @@
+#![allow(dead_code)] // this is a developer's toolbox
+
+use std::{panic, panic::PanicInfo};
+
 /// Log event at given level in debug-mode (when debug-assertions are enabled).
 /// In release-mode it becomes DEBUG level, and possibly subject to elision.
 ///
@@ -43,3 +47,32 @@ macro_rules! debug_info {
 		$crate::debug_event!(tracing::Level::INFO, $($x)+ );
 	}
 }
+
+pub fn set_panic_trap() {
+	let next = panic::take_hook();
+	panic::set_hook(Box::new(move |info| {
+		panic_handler(info, &next);
+	}));
+}
+
+#[inline(always)]
+fn panic_handler(info: &PanicInfo<'_>, next: &dyn Fn(&PanicInfo<'_>)) {
+	trap();
+	next(info);
+}
+
+#[inline(always)]
+#[allow(unexpected_cfgs)]
+pub fn trap() {
+	#[cfg(core_intrinsics)]
+	//SAFETY: embeds llvm intrinsic for hardware breakpoint
+	unsafe {
+		std::intrinsics::breakpoint();
+	}
+
+	#[cfg(all(not(core_intrinsics), target_arch = "x86_64"))]
+	//SAFETY: embeds instruction for hardware breakpoint
+	unsafe {
+		std::arch::asm!("int3");
+	}
+}

src/core/error.rs

@@ -1,11 +1,17 @@
 use std::{convert::Infallible, fmt};
 
+use axum::response::{IntoResponse, Response};
+use bytes::BytesMut;
 use http::StatusCode;
+use http_body_util::Full;
 use ruma::{
-	api::client::{
+	api::{
+		client::{
 			error::{Error as RumaError, ErrorBody, ErrorKind},
 			uiaa::{UiaaInfo, UiaaResponse},
 		},
+		OutgoingResponse,
+	},
 	OwnedServerName,
 };
 use thiserror::Error;
@@ -15,12 +21,10 @@ use ErrorKind::{
 	TooLarge, Unauthorized, Unknown, UnknownToken, Unrecognized, UserDeactivated, WrongRoomKeysVersion,
 };
 
-use crate::RumaResponse;
+pub type Result<T, E = Error> = std::result::Result<T, E>;
-
-pub(crate) type Result<T, E = Error> = std::result::Result<T, E>;
 
 #[derive(Error)]
-pub(crate) enum Error {
+pub enum Error {
 	#[cfg(feature = "sqlite")]
 	#[error("There was a problem with the connection to the sqlite database: {source}")]
 	Sqlite {
@@ -83,17 +87,70 @@ pub(crate) enum Error {
 }
 
 impl Error {
-	pub(crate) fn bad_database(message: &'static str) -> Self {
+	pub fn bad_database(message: &'static str) -> Self {
 		error!("BadDatabase: {}", message);
 		Self::BadDatabase(message)
 	}
 
-	pub(crate) fn bad_config(message: &str) -> Self {
+	pub fn bad_config(message: &str) -> Self {
 		error!("BadConfig: {}", message);
 		Self::BadConfig(message.to_owned())
 	}
 
-	pub(crate) fn to_response(&self) -> RumaResponse<UiaaResponse> {
+	/// Returns the Matrix error code / error kind
+	pub fn error_code(&self) -> ErrorKind {
+		if let Self::Federation(_, error) = self {
+			return error.error_kind().unwrap_or_else(|| &Unknown).clone();
+		}
+
+		match self {
+			Self::BadRequest(kind, _) => kind.clone(),
+			_ => Unknown,
+		}
+	}
+
+	/// Sanitizes public-facing errors that can leak sensitive information.
+	pub fn sanitized_error(&self) -> String {
+		let db_error = String::from("Database or I/O error occurred.");
+
+		match self {
+			#[cfg(feature = "sqlite")]
+			Self::Sqlite {
+				..
+			} => db_error,
+			#[cfg(feature = "rocksdb")]
+			Self::RocksDb {
+				..
+			} => db_error,
+			Self::Io {
+				..
+			} => db_error,
+			_ => self.to_string(),
+		}
+	}
+}
+
+impl From<Infallible> for Error {
+	fn from(i: Infallible) -> Self { match i {} }
+}
+
+impl fmt::Debug for Error {
+	fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { write!(f, "{}", self) }
+}
+
+#[derive(Clone)]
+pub struct RumaResponse<T>(pub T);
+
+impl<T> From<T> for RumaResponse<T> {
+	fn from(t: T) -> Self { Self(t) }
+}
+
+impl From<Error> for RumaResponse<UiaaResponse> {
+	fn from(t: Error) -> Self { t.to_response() }
+}
+
+impl Error {
+	pub fn to_response(&self) -> RumaResponse<UiaaResponse> {
 		if let Self::Uiaa(uiaainfo) = self {
 			return RumaResponse(UiaaResponse::AuthResponse(uiaainfo.clone()));
 		}
@@ -147,48 +204,17 @@ impl Error {
 			status_code,
 		}))
 	}
-
-	/// Returns the Matrix error code / error kind
-	pub(crate) fn error_code(&self) -> ErrorKind {
-		if let Self::Federation(_, error) = self {
-			return error.error_kind().unwrap_or_else(|| &Unknown).clone();
 }
 
-		match self {
+impl ::axum::response::IntoResponse for Error {
-			Self::BadRequest(kind, _) => kind.clone(),
+	fn into_response(self) -> ::axum::response::Response { self.to_response().into_response() }
-			_ => Unknown,
-		}
 }
 
-	/// Sanitizes public-facing errors that can leak sensitive information.
+impl<T: OutgoingResponse> IntoResponse for RumaResponse<T> {
-	pub(crate) fn sanitized_error(&self) -> String {
+	fn into_response(self) -> Response {
-		let db_error = String::from("Database or I/O error occurred.");
+		match self.0.try_into_http_response::<BytesMut>() {
-
+			Ok(res) => res.map(BytesMut::freeze).map(Full::new).into_response(),
-		match self {
+			Err(_) => StatusCode::INTERNAL_SERVER_ERROR.into_response(),
-			#[cfg(feature = "sqlite")]
-			Self::Sqlite {
-				..
-			} => db_error,
-			#[cfg(feature = "rocksdb")]
-			Self::RocksDb {
-				..
-			} => db_error,
-			Self::Io {
-				..
-			} => db_error,
-			_ => self.to_string(),
 		}
 	}
 }
-
-impl From<Infallible> for Error {
-	fn from(i: Infallible) -> Self { match i {} }
-}
-
-impl axum::response::IntoResponse for Error {
-	fn into_response(self) -> axum::response::Response { self.to_response().into_response() }
-}
-
-impl fmt::Debug for Error {
-	fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { write!(f, "{}", self) }
-}

src/core/log.rs

@@ -0,0 +1,79 @@
+use std::sync::Arc;
+
+use tracing_subscriber::{reload, EnvFilter};
+
+/// We need to store a reload::Handle value, but can't name it's type explicitly
+/// because the S type parameter depends on the subscriber's previous layers. In
+/// our case, this includes unnameable 'impl Trait' types.
+///
+/// This is fixed[1] in the unreleased tracing-subscriber from the master
+/// branch, which removes the S parameter. Unfortunately can't use it without
+/// pulling in a version of tracing that's incompatible with the rest of our
+/// deps.
+///
+/// To work around this, we define an trait without the S paramter that forwards
+/// to the reload::Handle::reload method, and then store the handle as a trait
+/// object.
+///
+/// [1]: <https://github.com/tokio-rs/tracing/pull/1035/commits/8a87ea52425098d3ef8f56d92358c2f6c144a28f>
+pub trait ReloadHandle<L> {
+	fn reload(&self, new_value: L) -> Result<(), reload::Error>;
+}
+
+impl<L, S> ReloadHandle<L> for reload::Handle<L, S> {
+	fn reload(&self, new_value: L) -> Result<(), reload::Error> { reload::Handle::reload(self, new_value) }
+}
+
+struct LogLevelReloadHandlesInner {
+	handles: Vec<Box<dyn ReloadHandle<EnvFilter> + Send + Sync>>,
+}
+
+/// Wrapper to allow reloading the filter on several several
+/// [`tracing_subscriber::reload::Handle`]s at once, with the same value.
+#[derive(Clone)]
+pub struct LogLevelReloadHandles {
+	inner: Arc<LogLevelReloadHandlesInner>,
+}
+
+impl LogLevelReloadHandles {
+	#[must_use]
+	pub fn new(handles: Vec<Box<dyn ReloadHandle<EnvFilter> + Send + Sync>>) -> LogLevelReloadHandles {
+		LogLevelReloadHandles {
+			inner: Arc::new(LogLevelReloadHandlesInner {
+				handles,
+			}),
+		}
+	}
+
+	pub fn reload(&self, new_value: &EnvFilter) -> Result<(), reload::Error> {
+		for handle in &self.inner.handles {
+			handle.reload(new_value.clone())?;
+		}
+		Ok(())
+	}
+}
+
+#[macro_export]
+macro_rules! error {
+    ( $($x:tt)+ ) => { tracing::error!( $($x)+ ); }
+}
+
+#[macro_export]
+macro_rules! warn {
+    ( $($x:tt)+ ) => { tracing::warn!( $($x)+ ); }
+}
+
+#[macro_export]
+macro_rules! info {
+    ( $($x:tt)+ ) => { tracing::info!( $($x)+ ); }
+}
+
+#[macro_export]
+macro_rules! debug {
+    ( $($x:tt)+ ) => { tracing::debug!( $($x)+ ); }
+}
+
+#[macro_export]
+macro_rules! trace {
+    ( $($x:tt)+ ) => { tracing::trace!( $($x)+ ); }
+}

src/core/mod.rs

@@ -0,0 +1,27 @@
+pub mod alloc;
+pub mod config;
+pub mod debug;
+pub mod error;
+pub mod log;
+pub mod mods;
+pub mod pducount;
+pub mod server;
+pub mod utils;
+
+pub use config::Config;
+pub use error::{Error, Result, RumaResponse};
+pub use pducount::PduCount;
+pub use server::Server;
+pub use utils::conduwuit_version;
+
+#[cfg(not(feature = "mods"))]
+mod mods {
+	#[macro_export]
+	macro_rules! mod_ctor {
+		() => {};
+	}
+	#[macro_export]
+	macro_rules! mod_dtor {
+		() => {};
+	}
+}

src/core/mods/canary.rs

@@ -0,0 +1,28 @@
+use std::sync::atomic::{AtomicI32, Ordering};
+
+const ORDERING: Ordering = Ordering::Relaxed;
+static STATIC_DTORS: AtomicI32 = AtomicI32::new(0);
+
+/// Called by Module::unload() to indicate module is about to be unloaded and
+/// static destruction is intended. This will allow verifying it actually took
+/// place.
+pub(crate) fn prepare() {
+	let count = STATIC_DTORS.fetch_sub(1, ORDERING);
+	debug_assert!(count <= 0, "STATIC_DTORS should not be greater than zero.");
+}
+
+/// Called by static destructor of a module. This call should only be found
+/// inside a mod_fini! macro. Do not call from anywhere else.
+#[inline(always)]
+pub fn report() { let _count = STATIC_DTORS.fetch_add(1, ORDERING); }
+
+/// Called by Module::unload() (see check()) with action in case a check()
+/// failed. This can allow a stuck module to be noted while allowing for other
+/// independent modules to be diagnosed.
+pub(crate) fn check_and_reset() -> bool { STATIC_DTORS.swap(0, ORDERING) == 0 }
+
+/// Called by Module::unload() after unload to verify static destruction took
+/// place. A call to prepare() must be made prior to Module::unload() and making
+/// this call.
+#[allow(dead_code)]
+pub(crate) fn check() -> bool { STATIC_DTORS.load(ORDERING) == 0 }

src/core/mods/macros.rs

@@ -0,0 +1,44 @@
+#[macro_export]
+macro_rules! mod_ctor {
+	( $($body:block)? ) => {
+		$crate::mod_init! {{
+			$crate::debug_info!("Module loaded");
+			$($body)?
+		}}
+	}
+}
+
+#[macro_export]
+macro_rules! mod_dtor {
+	( $($body:block)? ) => {
+		$crate::mod_fini! {{
+			$crate::debug_info!("Module unloading");
+			$($body)?
+			$crate::mods::canary::report();
+		}}
+	}
+}
+
+#[macro_export]
+macro_rules! mod_init {
+	($body:block) => {
+		#[used]
+		#[cfg_attr(target_family = "unix", link_section = ".init_array")]
+		static MOD_INIT: extern "C" fn() = { _mod_init };
+
+		#[cfg_attr(target_family = "unix", link_section = ".text.startup")]
+		extern "C" fn _mod_init() -> () $body
+	};
+}
+
+#[macro_export]
+macro_rules! mod_fini {
+	($body:block) => {
+		#[used]
+		#[cfg_attr(target_family = "unix", link_section = ".fini_array")]
+		static MOD_FINI: extern "C" fn() = { _mod_fini };
+
+		#[cfg_attr(target_family = "unix", link_section = ".text.startup")]
+		extern "C" fn _mod_fini() -> () $body
+	};
+}

src/core/mods/mod.rs

@@ -0,0 +1,11 @@
+#![cfg(feature = "mods")]
+
+pub(crate) use libloading::os::unix::{Library, Symbol};
+
+pub mod canary;
+pub mod macros;
+pub mod module;
+pub mod new;
+pub mod path;
+
+pub use module::Module;

src/core/mods/module.rs

@@ -0,0 +1,74 @@
+use std::{
+	ffi::{CString, OsString},
+	time::SystemTime,
+};
+
+use super::{canary, new, path, Library, Symbol};
+use crate::{error, Result};
+
+pub struct Module {
+	handle: Option<Library>,
+	loaded: SystemTime,
+	path: OsString,
+}
+
+impl Module {
+	pub fn from_name(name: &str) -> Result<Self> { Self::from_path(path::from_name(name)?) }
+
+	pub fn from_path(path: OsString) -> Result<Self> {
+		Ok(Self {
+			handle: Some(new::from_path(&path)?),
+			loaded: SystemTime::now(),
+			path,
+		})
+	}
+
+	pub fn unload(&mut self) {
+		canary::prepare();
+		self.close();
+		if !canary::check_and_reset() {
+			let name = self.name().expect("Module is named");
+			error!("Module {name:?} is stuck and failed to unload.");
+		}
+	}
+
+	pub(crate) fn close(&mut self) {
+		if let Some(handle) = self.handle.take() {
+			handle.close().expect("Module handle closed");
+		}
+	}
+
+	pub fn get<Prototype>(&self, name: &str) -> Result<Symbol<Prototype>> {
+		let cname = CString::new(name.to_owned()).expect("terminated string from provided name");
+		let handle = self
+			.handle
+			.as_ref()
+			.expect("backing library loaded by this instance");
+		// SAFETY: Calls dlsym(3) on unix platforms. This might not have to be unsafe
+		// if wrapped in libloading with_dlerror().
+		let sym = unsafe { handle.get::<Prototype>(cname.as_bytes()) };
+		let sym = sym.expect("symbol found; binding successful");
+
+		Ok(sym)
+	}
+
+	pub fn deleted(&self) -> Result<bool> {
+		let mtime = path::mtime(self.path())?;
+		let res = mtime > self.loaded;
+
+		Ok(res)
+	}
+
+	pub fn name(&self) -> Result<String> { path::to_name(self.path()) }
+
+	#[must_use]
+	pub fn path(&self) -> &OsString { &self.path }
+}
+
+impl Drop for Module {
+	fn drop(&mut self) {
+		if self.handle.is_some() {
+			self.unload();
+		}
+	}
+}

src/core/mods/new.rs

@@ -0,0 +1,23 @@
+use std::ffi::OsStr;
+
+use super::{path, Library};
+use crate::{Error, Result};
+
+const OPEN_FLAGS: i32 = libloading::os::unix::RTLD_LAZY | libloading::os::unix::RTLD_GLOBAL;
+
+pub fn from_name(name: &str) -> Result<Library> {
+	let path = path::from_name(name)?;
+	from_path(&path)
+}
+
+pub fn from_path(path: &OsStr) -> Result<Library> {
+	//SAFETY: Calls dlopen(3) on unix platforms. This might not have to be unsafe
+	// if wrapped in with_dlerror.
+	let lib = unsafe { Library::open(Some(path), OPEN_FLAGS) };
+	if let Err(e) = lib {
+		let name = path::to_name(path)?;
+		return Err(Error::Err(format!("Loading module {name:?} failed: {e}")));
+	}
+
+	Ok(lib.expect("module loaded"))
+}

src/core/mods/path.rs

@@ -0,0 +1,40 @@
+use std::{
+	env::current_exe,
+	ffi::{OsStr, OsString},
+	path::{Path, PathBuf},
+	time::SystemTime,
+};
+
+use libloading::library_filename;
+
+use crate::Result;
+
+pub fn from_name(name: &str) -> Result<OsString> {
+	let root = PathBuf::new();
+	let exe_path = current_exe()?;
+	let exe_dir = exe_path.parent().unwrap_or(&root);
+	let mut mod_path = exe_dir.to_path_buf();
+	let mod_file = library_filename(name);
+	mod_path.push(mod_file);
+
+	Ok(mod_path.into_os_string())
+}
+
+pub fn to_name(path: &OsStr) -> Result<String> {
+	let path = Path::new(path);
+	let name = path
+		.file_stem()
+		.expect("path file stem")
+		.to_str()
+		.expect("name string");
+	let name = name.strip_prefix("lib").unwrap_or(name).to_owned();
+
+	Ok(name)
+}
+
+pub fn mtime(path: &OsStr) -> Result<SystemTime> {
+	let meta = std::fs::metadata(path)?;
+	let mtime = meta.modified()?;
+
+	Ok(mtime)
+}

src/core/pducount.rs

@@ -0,0 +1,51 @@
+use std::cmp::Ordering;
+
+use ruma::api::client::error::ErrorKind;
+
+use crate::{Error, Result};
+
+#[derive(Hash, PartialEq, Eq, Clone, Copy, Debug)]
+pub enum PduCount {
+	Backfilled(u64),
+	Normal(u64),
+}
+
+impl PduCount {
+	#[must_use]
+	pub fn min() -> Self { Self::Backfilled(u64::MAX) }
+
+	#[must_use]
+	pub fn max() -> Self { Self::Normal(u64::MAX) }
+
+	pub fn try_from_string(token: &str) -> Result<Self> {
+		if let Some(stripped_token) = token.strip_prefix('-') {
+			stripped_token.parse().map(PduCount::Backfilled)
+		} else {
+			token.parse().map(PduCount::Normal)
+		}
+		.map_err(|_| Error::BadRequest(ErrorKind::InvalidParam, "Invalid pagination token."))
+	}
+
+	#[must_use]
+	pub fn stringify(&self) -> String {
+		match self {
+			PduCount::Backfilled(x) => format!("-{x}"),
+			PduCount::Normal(x) => x.to_string(),
+		}
+	}
+}
+
+impl PartialOrd for PduCount {
+	fn partial_cmp(&self, other: &Self) -> Option<Ordering> { Some(self.cmp(other)) }
+}
+
+impl Ord for PduCount {
+	fn cmp(&self, other: &Self) -> Ordering {
+		match (self, other) {
+			(PduCount::Normal(s), PduCount::Normal(o)) => s.cmp(o),
+			(PduCount::Backfilled(s), PduCount::Backfilled(o)) => o.cmp(s),
+			(PduCount::Normal(_), PduCount::Backfilled(_)) => Ordering::Greater,
+			(PduCount::Backfilled(_), PduCount::Normal(_)) => Ordering::Less,
+		}
+	}
+}

src/core/server.rs

@@ -0,0 +1,72 @@
+use std::{
+	sync::{
+		atomic::{AtomicBool, AtomicU32},
+		Mutex,
+	},
+	time::SystemTime,
+};
+
+use tokio::runtime;
+
+use crate::{config::Config, log::LogLevelReloadHandles};
+
+/// Server runtime state; public portion
+pub struct Server {
+	/// Server-wide configuration instance
+	pub config: Config,
+
+	/// Timestamp server was started; used for uptime.
+	pub started: SystemTime,
+
+	/// Reload/shutdown signal channel. Called from the signal handler or admin
+	/// command to initiate shutdown.
+	pub shutdown: Mutex<Option<axum_server::Handle>>,
+
+	/// Reload/shutdown desired indicator; when false, shutdown is desired. This
+	/// is an observable used on shutdown and modifying is not recommended.
+	pub reload: AtomicBool,
+
+	/// Reload/shutdown pending indicator; server is shutting down. This is an
+	/// observable used on shutdown and should not be modified.
+	pub interrupt: AtomicBool,
+
+	/// Handle to the runtime
+	pub runtime: Option<runtime::Handle>,
+
+	/// Log level reload handles.
+	pub tracing_reload_handle: LogLevelReloadHandles,
+
+	/// TODO: move stats
+	pub requests_spawn_active: AtomicU32,
+	pub requests_spawn_finished: AtomicU32,
+	pub requests_handle_active: AtomicU32,
+	pub requests_handle_finished: AtomicU32,
+	pub requests_panic: AtomicU32,
+}
+
+impl Server {
+	#[must_use]
+	pub fn new(config: Config, runtime: Option<runtime::Handle>, tracing_reload_handle: LogLevelReloadHandles) -> Self {
+		Self {
+			config,
+			started: SystemTime::now(),
+			shutdown: Mutex::new(None),
+			reload: AtomicBool::new(false),
+			interrupt: AtomicBool::new(false),
+			runtime,
+			tracing_reload_handle,
+			requests_spawn_active: AtomicU32::new(0),
+			requests_spawn_finished: AtomicU32::new(0),
+			requests_handle_active: AtomicU32::new(0),
+			requests_handle_finished: AtomicU32::new(0),
+			requests_panic: AtomicU32::new(0),
+		}
+	}
+
+	#[inline]
+	pub fn runtime(&self) -> &runtime::Handle {
+		self.runtime
+			.as_ref()
+			.expect("runtime handle available in Server")
+	}
+}

src/core/utils/clap.rs

@@ -2,19 +2,19 @@
 
 use std::path::PathBuf;
 
-use clap::Parser;
+pub use clap::Parser;
 
 use super::conduwuit_version;
 
 /// Commandline arguments
 #[derive(Parser, Debug)]
 #[clap(version = conduwuit_version(), about, long_about = None)]
-pub(crate) struct Args {
+pub struct Args {
 	#[arg(short, long)]
 	/// Optional argument to the path of a conduwuit config TOML file
-	pub(crate) config: Option<PathBuf>,
+	pub config: Option<PathBuf>,
 }
 
 /// Parse commandline arguments into structured data
 #[must_use]
-pub(crate) fn parse() -> Args { Args::parse() }
+pub fn parse() -> Args { Args::parse() }

src/core/utils/content_disposition.rs

@@ -17,8 +17,9 @@ const IMAGE_SVG_XML: &str = "image/svg+xml";
 ///
 /// TODO: add a "strict" function for comparing the Content-Type with what we
 /// detected: `file_type.mime_type() != content_type`
+#[must_use]
 #[tracing::instrument(skip(buf))]
-pub(crate) fn content_disposition_type(buf: &[u8], content_type: &Option<String>) -> &'static str {
+pub fn content_disposition_type(buf: &[u8], content_type: &Option<String>) -> &'static str {
 	let Some(file_type) = infer::get(buf) else {
 		return ATTACHMENT;
 	};
@@ -41,8 +42,9 @@ pub(crate) fn content_disposition_type(buf: &[u8], content_type: &Option<String>
 ///
 /// SVG is special-cased due to the MIME type being classified as `text/xml` but
 /// browsers need `image/svg+xml`
+#[must_use]
 #[tracing::instrument(skip(buf))]
-pub(crate) fn make_content_type(buf: &[u8], content_type: &Option<String>) -> &'static str {
+pub fn make_content_type(buf: &[u8], content_type: &Option<String>) -> &'static str {
 	let Some(file_type) = infer::get(buf) else {
 		debug_info!("Failed to infer the file's contents");
 		return APPLICATION_OCTET_STREAM;
@@ -62,7 +64,7 @@ pub(crate) fn make_content_type(buf: &[u8], content_type: &Option<String>) -> &'
 /// sanitises the file name for the Content-Disposition using
 /// `sanitize_filename` crate
 #[tracing::instrument]
-pub(crate) fn sanitise_filename(filename: String) -> String {
+pub fn sanitise_filename(filename: String) -> String {
 	let options = sanitize_filename::Options {
 		truncate: false,
 		..Default::default()
@@ -79,7 +81,7 @@ pub(crate) fn sanitise_filename(filename: String) -> String {
 ///
 /// else: `Content-Disposition: attachment/inline`
 #[tracing::instrument(skip(file))]
-pub(crate) fn make_content_disposition(
+pub fn make_content_disposition(
 	file: &[u8], content_type: &Option<String>, content_disposition: Option<String>,
 ) -> String {
 	let filename = content_disposition.map_or_else(String::new, |content_disposition| {

src/core/utils/defer.rs

@@ -0,0 +1,22 @@
+#[macro_export]
+macro_rules! defer {
+	($body:block) => {
+		struct _Defer_<F>
+		where
+			F: FnMut(),
+		{
+			closure: F,
+		}
+
+		impl<F> Drop for _Defer_<F>
+		where
+			F: FnMut(),
+		{
+			fn drop(&mut self) { (self.closure)(); }
+		}
+
+		let _defer_ = _Defer_ {
+			closure: || $body,
+		};
+	};
+}

src/core/utils/mod.rs

@@ -1,10 +1,3 @@
-pub(crate) mod clap;
-pub(crate) mod content_disposition;
-pub(crate) mod debug;
-pub(crate) mod error;
-pub(crate) mod server_name;
-pub(crate) mod user_id;
-
 use std::{
 	cmp,
 	cmp::Ordering,
@@ -13,24 +6,29 @@ use std::{
 	time::{SystemTime, UNIX_EPOCH},
 };
 
-use argon2::{password_hash::SaltString, PasswordHasher};
 use rand::prelude::*;
 use ring::digest;
 use ruma::{canonical_json::try_from_json_map, CanonicalJsonError, CanonicalJsonObject, OwnedUserId};
+use tracing::debug;
 
-use crate::{services, Error, Result};
+use crate::{Error, Result};
 
-pub(crate) fn clamp<T: Ord>(val: T, min: T, max: T) -> T { cmp::min(cmp::max(val, min), max) }
+pub mod clap;
+pub mod content_disposition;
+pub mod defer;
 
+pub fn clamp<T: Ord>(val: T, min: T, max: T) -> T { cmp::min(cmp::max(val, min), max) }
+
+#[must_use]
 #[allow(clippy::as_conversions)]
-pub(crate) fn millis_since_unix_epoch() -> u64 {
+pub fn millis_since_unix_epoch() -> u64 {
 	SystemTime::now()
 		.duration_since(UNIX_EPOCH)
 		.expect("time is valid")
 		.as_millis() as u64
 }
 
-pub(crate) fn increment(old: Option<&[u8]>) -> Vec<u8> {
+pub fn increment(old: Option<&[u8]>) -> Vec<u8> {
 	let number = match old.map(TryInto::try_into) {
 		Some(Ok(bytes)) => {
 			let number = u64::from_be_bytes(bytes);
@@ -42,7 +40,8 @@ pub(crate) fn increment(old: Option<&[u8]>) -> Vec<u8> {
 	number.to_be_bytes().to_vec()
 }
 
-pub(crate) fn generate_keypair() -> Vec<u8> {
+#[must_use]
+pub fn generate_keypair() -> Vec<u8> {
 	let mut value = random_string(8).as_bytes().to_vec();
 	value.push(0xFF);
 	value.extend_from_slice(
@@ -52,25 +51,25 @@ pub(crate) fn generate_keypair() -> Vec<u8> {
 }
 
 /// Parses the bytes into an u64.
-pub(crate) fn u64_from_bytes(bytes: &[u8]) -> Result<u64, std::array::TryFromSliceError> {
+pub fn u64_from_bytes(bytes: &[u8]) -> Result<u64, std::array::TryFromSliceError> {
 	let array: [u8; 8] = bytes.try_into()?;
 	Ok(u64::from_be_bytes(array))
 }
 
 /// Parses the bytes into a string.
-pub(crate) fn string_from_bytes(bytes: &[u8]) -> Result<String, std::string::FromUtf8Error> {
+pub fn string_from_bytes(bytes: &[u8]) -> Result<String, std::string::FromUtf8Error> {
 	String::from_utf8(bytes.to_vec())
 }
 
 /// Parses a `OwnedUserId` from bytes.
-pub(crate) fn user_id_from_bytes(bytes: &[u8]) -> Result<OwnedUserId> {
+pub fn user_id_from_bytes(bytes: &[u8]) -> Result<OwnedUserId> {
 	OwnedUserId::try_from(
 		string_from_bytes(bytes).map_err(|_| Error::bad_database("Failed to parse string from bytes"))?,
 	)
 	.map_err(|_| Error::bad_database("Failed to parse user id from bytes"))
 }
 
-pub(crate) fn random_string(length: usize) -> String {
+pub fn random_string(length: usize) -> String {
 	thread_rng()
 		.sample_iter(&rand::distributions::Alphanumeric)
 		.take(length)
@@ -78,25 +77,16 @@ pub(crate) fn random_string(length: usize) -> String {
 		.collect()
 }
 
-/// Calculate a new hash for the given password
-pub(crate) fn calculate_password_hash(password: &str) -> Result<String, argon2::password_hash::Error> {
-	let salt = SaltString::generate(thread_rng());
-	services()
-		.globals
-		.argon
-		.hash_password(password.as_bytes(), &salt)
-		.map(|it| it.to_string())
-}
-
 #[tracing::instrument(skip(keys))]
-pub(crate) fn calculate_hash(keys: &[&[u8]]) -> Vec<u8> {
+pub fn calculate_hash(keys: &[&[u8]]) -> Vec<u8> {
 	// We only hash the pdu's event ids, not the whole pdu
 	let bytes = keys.join(&0xFF);
 	let hash = digest::digest(&digest::SHA256, &bytes);
 	hash.as_ref().to_owned()
 }
 
-pub(crate) fn common_elements(
+#[allow(clippy::impl_trait_in_params)]
+pub fn common_elements(
 	mut iterators: impl Iterator<Item = impl Iterator<Item = Vec<u8>>>, check_order: impl Fn(&[u8], &[u8]) -> Ordering,
 ) -> Option<impl Iterator<Item = Vec<u8>>> {
 	let first_iterator = iterators.next()?;
@@ -123,7 +113,7 @@ pub(crate) fn common_elements(
 /// `CanonicalJsonObject`.
 ///
 /// `value` must serialize to an `serde_json::Value::Object`.
-pub(crate) fn to_canonical_object<T: serde::Serialize>(value: T) -> Result<CanonicalJsonObject, CanonicalJsonError> {
+pub fn to_canonical_object<T: serde::Serialize>(value: T) -> Result<CanonicalJsonObject, CanonicalJsonError> {
 	use serde::ser::Error;
 
 	match serde_json::to_value(value).map_err(CanonicalJsonError::SerDe)? {
@@ -132,7 +122,7 @@ pub(crate) fn to_canonical_object<T: serde::Serialize>(value: T) -> Result<Canon
 	}
 }
 
-pub(crate) fn deserialize_from_str<'de, D: serde::de::Deserializer<'de>, T: FromStr<Err = E>, E: fmt::Display>(
+pub fn deserialize_from_str<'de, D: serde::de::Deserializer<'de>, T: FromStr<Err = E>, E: fmt::Display>(
 	deserializer: D,
 ) -> Result<T, D::Error> {
 	struct Visitor<T: FromStr<Err = E>, E>(std::marker::PhantomData<T>);
@@ -158,7 +148,7 @@ pub(crate) fn deserialize_from_str<'de, D: serde::de::Deserializer<'de>, T: From
 
 /// Wrapper struct which will emit the HTML-escaped version of the contained
 /// string when passed to a format string.
-pub(crate) struct HtmlEscape<'a>(pub(crate) &'a str);
+pub struct HtmlEscape<'a>(pub &'a str);
 
 impl fmt::Display for HtmlEscape<'_> {
 	fn fmt(&self, fmt: &mut fmt::Formatter<'_>) -> fmt::Result {
@@ -196,7 +186,8 @@ impl fmt::Display for HtmlEscape<'_> {
 /// Set the environment variable `CONDUWUIT_VERSION_EXTRA` to any UTF-8 string
 /// to include it in parenthesis after the SemVer version. A common value are
 /// git commit hashes.
-pub(crate) fn conduwuit_version() -> String {
+#[must_use]
+pub fn conduwuit_version() -> String {
 	match option_env!("CONDUWUIT_VERSION_EXTRA") {
 		Some(extra) => {
 			if extra.is_empty() {
@@ -222,7 +213,7 @@ pub(crate) fn conduwuit_version() -> String {
 /// Any further elements are replaced by an ellipsis.
 ///
 /// See also [`debug_slice_truncated()`],
-pub(crate) struct TruncatedDebugSlice<'a, T> {
+pub struct TruncatedDebugSlice<'a, T> {
 	inner: &'a [T],
 	max_len: usize,
 }
@@ -243,11 +234,12 @@ impl<T: fmt::Debug> fmt::Debug for TruncatedDebugSlice<'_, T> {
 /// See [`TruncatedDebugSlice`]. Useful for `#[instrument]`:
 ///
 /// ```
-/// #[tracing::instrument(fields(
+/// use conduit_core::utils::debug_slice_truncated;
-///     foos = debug_slice_truncated(foos, N)
+///
-/// ))]
+/// #[tracing::instrument(fields(foos = debug_slice_truncated(foos, 42)))]
+/// fn bar(foos: &[&str]);
 /// ```
-pub(crate) fn debug_slice_truncated<T: fmt::Debug>(
+pub fn debug_slice_truncated<T: fmt::Debug>(
 	slice: &[T], max_len: usize,
 ) -> tracing::field::DebugValue<TruncatedDebugSlice<'_, T>> {
 	tracing::field::debug(TruncatedDebugSlice {
@@ -255,3 +247,24 @@ pub(crate) fn debug_slice_truncated<T: fmt::Debug>(
 		max_len,
 	})
 }
+
+/// This is needed for opening lots of file descriptors, which tends to
+/// happen more often when using RocksDB and making lots of federation
+/// connections at startup. The soft limit is usually 1024, and the hard
+/// limit is usually 512000; I've personally seen it hit >2000.
+///
+/// * <https://www.freedesktop.org/software/systemd/man/systemd.exec.html#id-1.12.2.1.17.6>
+/// * <https://github.com/systemd/systemd/commit/0abf94923b4a95a7d89bc526efc84e7ca2b71741>
+#[cfg(unix)]
+pub fn maximize_fd_limit() -> Result<(), nix::errno::Errno> {
+	use nix::sys::resource::{getrlimit, setrlimit, Resource::RLIMIT_NOFILE as NOFILE};
+
+	let (soft_limit, hard_limit) = getrlimit(NOFILE)?;
+	if soft_limit < hard_limit {
+		setrlimit(NOFILE, hard_limit, hard_limit)?;
+		assert_eq!((hard_limit, hard_limit), getrlimit(NOFILE)?, "getrlimit != setrlimit");
+		debug!(to = hard_limit, from = soft_limit, "Raised RLIMIT_NOFILE",);
+	}
+
+	Ok(())
+}

src/database/Cargo.toml

@@ -0,0 +1,81 @@
+[package]
+name = "conduit_database"
+version.workspace = true
+edition.workspace = true
+
+[lib]
+path = "mod.rs"
+crate-type = [
+	"rlib",
+#	"dylib",
+]
+
+[features]
+default = [
+	"rocksdb",
+	"io_uring",
+	"jemalloc",
+	"zstd_compression",
+	"release_max_log_level",
+]
+
+dev_release_log_level = []
+release_max_log_level = [
+	"tracing/max_level_trace",
+	"tracing/release_max_level_info",
+	"log/max_level_trace",
+	"log/release_max_level_info",
+]
+sqlite = [
+	"dep:rusqlite",
+	"dep:parking_lot",
+	"dep:thread_local",
+]
+rocksdb = [
+	"dep:rust-rocksdb",
+]
+jemalloc = [
+	"dep:tikv-jemalloc-sys",
+	"dep:tikv-jemalloc-ctl",
+	"dep:tikv-jemallocator",
+	"rust-rocksdb/jemalloc",
+]
+jemalloc_prof = [
+	"tikv-jemalloc-sys/profiling",
+]
+io_uring = [
+	"rust-rocksdb/io-uring",
+]
+zstd_compression = [
+	"rust-rocksdb/zstd",
+]
+
+[dependencies]
+chrono.workspace = true
+conduit-core.workspace = true
+futures-util.workspace = true
+log.workspace = true
+lru-cache.workspace = true
+num_cpus.workspace = true
+parking_lot.optional = true
+parking_lot.workspace = true
+ruma.workspace = true
+rusqlite.optional = true
+rusqlite.workspace = true
+rust-rocksdb.optional = true
+rust-rocksdb.workspace = true
+thread_local.optional = true
+thread_local.workspace = true
+tikv-jemallocator.optional = true
+tikv-jemallocator.workspace = true
+tikv-jemalloc-ctl.optional = true
+tikv-jemalloc-ctl.workspace = true
+tikv-jemalloc-sys.optional = true
+tikv-jemalloc-sys.workspace = true
+tokio.workspace = true
+tracing.workspace = true
+zstd.optional = true
+zstd.workspace = true
+
+[lints]
+workspace = true

src/database/cork.rs

@@ -2,14 +2,14 @@ use std::sync::Arc;
 
 use super::KeyValueDatabaseEngine;
 
-pub(crate) struct Cork {
+pub struct Cork {
 	db: Arc<dyn KeyValueDatabaseEngine>,
 	flush: bool,
 	sync: bool,
 }
 
 impl Cork {
-	pub(crate) fn new(db: &Arc<dyn KeyValueDatabaseEngine>, flush: bool, sync: bool) -> Self {
+	pub fn new(db: &Arc<dyn KeyValueDatabaseEngine>, flush: bool, sync: bool) -> Self {
 		db.cork().unwrap();
 		Cork {
 			db: db.clone(),

src/database/kvdatabase.rs

@@ -0,0 +1,320 @@
+use std::{
+	collections::{BTreeMap, HashMap, HashSet},
+	path::Path,
+	sync::{Arc, Mutex, RwLock},
+};
+
+use conduit::{Config, Error, PduCount, Result, Server};
+use lru_cache::LruCache;
+use ruma::{CanonicalJsonValue, OwnedDeviceId, OwnedRoomId, OwnedUserId};
+use tracing::debug;
+
+use crate::{KeyValueDatabaseEngine, KvTree};
+
+pub struct KeyValueDatabase {
+	pub db: Arc<dyn KeyValueDatabaseEngine>,
+
+	//pub globals: globals::Globals,
+	pub global: Arc<dyn KvTree>,
+	pub server_signingkeys: Arc<dyn KvTree>,
+
+	pub roomid_inviteviaservers: Arc<dyn KvTree>,
+
+	//pub users: users::Users,
+	pub userid_password: Arc<dyn KvTree>,
+	pub userid_displayname: Arc<dyn KvTree>,
+	pub userid_avatarurl: Arc<dyn KvTree>,
+	pub userid_blurhash: Arc<dyn KvTree>,
+	pub userdeviceid_token: Arc<dyn KvTree>,
+	pub userdeviceid_metadata: Arc<dyn KvTree>, // This is also used to check if a device exists
+	pub userid_devicelistversion: Arc<dyn KvTree>, // DevicelistVersion = u64
+	pub token_userdeviceid: Arc<dyn KvTree>,
+
+	pub onetimekeyid_onetimekeys: Arc<dyn KvTree>, // OneTimeKeyId = UserId + DeviceKeyId
+	pub userid_lastonetimekeyupdate: Arc<dyn KvTree>, // LastOneTimeKeyUpdate = Count
+	pub keychangeid_userid: Arc<dyn KvTree>,       // KeyChangeId = UserId/RoomId + Count
+	pub keyid_key: Arc<dyn KvTree>,                // KeyId = UserId + KeyId (depends on key type)
+	pub userid_masterkeyid: Arc<dyn KvTree>,
+	pub userid_selfsigningkeyid: Arc<dyn KvTree>,
+	pub userid_usersigningkeyid: Arc<dyn KvTree>,
+
+	pub userfilterid_filter: Arc<dyn KvTree>, // UserFilterId = UserId + FilterId
+	pub todeviceid_events: Arc<dyn KvTree>,   // ToDeviceId = UserId + DeviceId + Count
+	pub userid_presenceid: Arc<dyn KvTree>,   // UserId => Count
+	pub presenceid_presence: Arc<dyn KvTree>, // Count + UserId => Presence
+
+	//pub uiaa: uiaa::Uiaa,
+	pub userdevicesessionid_uiaainfo: Arc<dyn KvTree>, // User-interactive authentication
+	pub userdevicesessionid_uiaarequest: RwLock<BTreeMap<(OwnedUserId, OwnedDeviceId, String), CanonicalJsonValue>>,
+
+	//pub edus: RoomEdus,
+	pub readreceiptid_readreceipt: Arc<dyn KvTree>, // ReadReceiptId = RoomId + Count + UserId
+	pub roomuserid_privateread: Arc<dyn KvTree>,    // RoomUserId = Room + User, PrivateRead = Count
+	pub roomuserid_lastprivatereadupdate: Arc<dyn KvTree>, // LastPrivateReadUpdate = Count
+
+	//pub rooms: rooms::Rooms,
+	pub pduid_pdu: Arc<dyn KvTree>, // PduId = ShortRoomId + Count
+	pub eventid_pduid: Arc<dyn KvTree>,
+	pub roomid_pduleaves: Arc<dyn KvTree>,
+	pub alias_roomid: Arc<dyn KvTree>,
+	pub aliasid_alias: Arc<dyn KvTree>, // AliasId = RoomId + Count
+	pub publicroomids: Arc<dyn KvTree>,
+
+	pub threadid_userids: Arc<dyn KvTree>, // ThreadId = RoomId + Count
+
+	pub tokenids: Arc<dyn KvTree>, // TokenId = ShortRoomId + Token + PduIdCount
+
+	/// Participating servers in a room.
+	pub roomserverids: Arc<dyn KvTree>, // RoomServerId = RoomId + ServerName
+	pub serverroomids: Arc<dyn KvTree>, // ServerRoomId = ServerName + RoomId
+
+	pub userroomid_joined: Arc<dyn KvTree>,
+	pub roomuserid_joined: Arc<dyn KvTree>,
+	pub roomid_joinedcount: Arc<dyn KvTree>,
+	pub roomid_invitedcount: Arc<dyn KvTree>,
+	pub roomuseroncejoinedids: Arc<dyn KvTree>,
+	pub userroomid_invitestate: Arc<dyn KvTree>, // InviteState = Vec<Raw<Pdu>>
+	pub roomuserid_invitecount: Arc<dyn KvTree>, // InviteCount = Count
+	pub userroomid_leftstate: Arc<dyn KvTree>,
+	pub roomuserid_leftcount: Arc<dyn KvTree>,
+
+	pub disabledroomids: Arc<dyn KvTree>, // Rooms where incoming federation handling is disabled
+
+	pub bannedroomids: Arc<dyn KvTree>, // Rooms where local users are not allowed to join
+
+	pub lazyloadedids: Arc<dyn KvTree>, // LazyLoadedIds = UserId + DeviceId + RoomId + LazyLoadedUserId
+
+	pub userroomid_notificationcount: Arc<dyn KvTree>, // NotifyCount = u64
+	pub userroomid_highlightcount: Arc<dyn KvTree>,    // HightlightCount = u64
+	pub roomuserid_lastnotificationread: Arc<dyn KvTree>, // LastNotificationRead = u64
+
+	/// Remember the current state hash of a room.
+	pub roomid_shortstatehash: Arc<dyn KvTree>,
+	pub roomsynctoken_shortstatehash: Arc<dyn KvTree>,
+	/// Remember the state hash at events in the past.
+	pub shorteventid_shortstatehash: Arc<dyn KvTree>,
+	pub statekey_shortstatekey: Arc<dyn KvTree>, /* StateKey = EventType + StateKey, ShortStateKey =
+	                                              * Count */
+	pub shortstatekey_statekey: Arc<dyn KvTree>,
+
+	pub roomid_shortroomid: Arc<dyn KvTree>,
+
+	pub shorteventid_eventid: Arc<dyn KvTree>,
+	pub eventid_shorteventid: Arc<dyn KvTree>,
+
+	pub statehash_shortstatehash: Arc<dyn KvTree>,
+	pub shortstatehash_statediff: Arc<dyn KvTree>, /* StateDiff = parent (or 0) +
+	                                                * (shortstatekey+shorteventid++) + 0_u64 +
+	                                                * (shortstatekey+shorteventid--) */
+
+	pub shorteventid_authchain: Arc<dyn KvTree>,
+
+	/// RoomId + EventId -> outlier PDU.
+	/// Any pdu that has passed the steps 1-8 in the incoming event
+	/// /federation/send/txn.
+	pub eventid_outlierpdu: Arc<dyn KvTree>,
+	pub softfailedeventids: Arc<dyn KvTree>,
+
+	/// ShortEventId + ShortEventId -> ().
+	pub tofrom_relation: Arc<dyn KvTree>,
+	/// RoomId + EventId -> Parent PDU EventId.
+	pub referencedevents: Arc<dyn KvTree>,
+
+	//pub account_data: account_data::AccountData,
+	pub roomuserdataid_accountdata: Arc<dyn KvTree>, // RoomUserDataId = Room + User + Count + Type
+	pub roomusertype_roomuserdataid: Arc<dyn KvTree>, // RoomUserType = Room + User + Type
+
+	//pub media: media::Media,
+	pub mediaid_file: Arc<dyn KvTree>, // MediaId = MXC + WidthHeight + ContentDisposition + ContentType
+	pub url_previews: Arc<dyn KvTree>,
+	pub mediaid_user: Arc<dyn KvTree>,
+	//pub key_backups: key_backups::KeyBackups,
+	pub backupid_algorithm: Arc<dyn KvTree>, // BackupId = UserId + Version(Count)
+	pub backupid_etag: Arc<dyn KvTree>,      // BackupId = UserId + Version(Count)
+	pub backupkeyid_backup: Arc<dyn KvTree>, // BackupKeyId = UserId + Version + RoomId + SessionId
+
+	//pub transaction_ids: transaction_ids::TransactionIds,
+	pub userdevicetxnid_response: Arc<dyn KvTree>, /* Response can be empty (/sendToDevice) or the event id
+	                                                * (/send) */
+	//pub sending: sending::Sending,
+	pub servername_educount: Arc<dyn KvTree>, // EduCount: Count of last EDU sync
+	pub servernameevent_data: Arc<dyn KvTree>, /* ServernameEvent = (+ / $)SenderKey / ServerName / UserId +
+	                                           * PduId / Id (for edus), Data = EDU content */
+	pub servercurrentevent_data: Arc<dyn KvTree>, /* ServerCurrentEvents = (+ / $)ServerName / UserId + PduId
+	                                               * / Id (for edus), Data = EDU content */
+
+	//pub appservice: appservice::Appservice,
+	pub id_appserviceregistrations: Arc<dyn KvTree>,
+
+	//pub pusher: pusher::PushData,
+	pub senderkey_pusher: Arc<dyn KvTree>,
+
+	pub auth_chain_cache: Mutex<LruCache<Vec<u64>, Arc<[u64]>>>,
+	pub our_real_users_cache: RwLock<HashMap<OwnedRoomId, Arc<HashSet<OwnedUserId>>>>,
+	pub appservice_in_room_cache: RwLock<HashMap<OwnedRoomId, HashMap<String, bool>>>,
+	pub lasttimelinecount_cache: Mutex<HashMap<OwnedRoomId, PduCount>>,
+}
+
+impl KeyValueDatabase {
+	/// Load an existing database or create a new one.
+	#[allow(clippy::too_many_lines)]
+	pub async fn load_or_create(server: &Arc<Server>) -> Result<KeyValueDatabase> {
+		let config = &server.config;
+		check_db_setup(config)?;
+		let builder = build(config)?;
+		Ok(Self {
+			db: builder.clone(),
+			userid_password: builder.open_tree("userid_password")?,
+			userid_displayname: builder.open_tree("userid_displayname")?,
+			userid_avatarurl: builder.open_tree("userid_avatarurl")?,
+			userid_blurhash: builder.open_tree("userid_blurhash")?,
+			userdeviceid_token: builder.open_tree("userdeviceid_token")?,
+			userdeviceid_metadata: builder.open_tree("userdeviceid_metadata")?,
+			userid_devicelistversion: builder.open_tree("userid_devicelistversion")?,
+			token_userdeviceid: builder.open_tree("token_userdeviceid")?,
+			onetimekeyid_onetimekeys: builder.open_tree("onetimekeyid_onetimekeys")?,
+			userid_lastonetimekeyupdate: builder.open_tree("userid_lastonetimekeyupdate")?,
+			keychangeid_userid: builder.open_tree("keychangeid_userid")?,
+			keyid_key: builder.open_tree("keyid_key")?,
+			userid_masterkeyid: builder.open_tree("userid_masterkeyid")?,
+			userid_selfsigningkeyid: builder.open_tree("userid_selfsigningkeyid")?,
+			userid_usersigningkeyid: builder.open_tree("userid_usersigningkeyid")?,
+			userfilterid_filter: builder.open_tree("userfilterid_filter")?,
+			todeviceid_events: builder.open_tree("todeviceid_events")?,
+			userid_presenceid: builder.open_tree("userid_presenceid")?,
+			presenceid_presence: builder.open_tree("presenceid_presence")?,
+
+			userdevicesessionid_uiaainfo: builder.open_tree("userdevicesessionid_uiaainfo")?,
+			userdevicesessionid_uiaarequest: RwLock::new(BTreeMap::new()),
+			readreceiptid_readreceipt: builder.open_tree("readreceiptid_readreceipt")?,
+			roomuserid_privateread: builder.open_tree("roomuserid_privateread")?, // "Private" read receipt
+			roomuserid_lastprivatereadupdate: builder.open_tree("roomuserid_lastprivatereadupdate")?,
+			pduid_pdu: builder.open_tree("pduid_pdu")?,
+			eventid_pduid: builder.open_tree("eventid_pduid")?,
+			roomid_pduleaves: builder.open_tree("roomid_pduleaves")?,
+
+			alias_roomid: builder.open_tree("alias_roomid")?,
+			aliasid_alias: builder.open_tree("aliasid_alias")?,
+			publicroomids: builder.open_tree("publicroomids")?,
+
+			threadid_userids: builder.open_tree("threadid_userids")?,
+
+			tokenids: builder.open_tree("tokenids")?,
+
+			roomserverids: builder.open_tree("roomserverids")?,
+			serverroomids: builder.open_tree("serverroomids")?,
+			userroomid_joined: builder.open_tree("userroomid_joined")?,
+			roomuserid_joined: builder.open_tree("roomuserid_joined")?,
+			roomid_joinedcount: builder.open_tree("roomid_joinedcount")?,
+			roomid_invitedcount: builder.open_tree("roomid_invitedcount")?,
+			roomuseroncejoinedids: builder.open_tree("roomuseroncejoinedids")?,
+			userroomid_invitestate: builder.open_tree("userroomid_invitestate")?,
+			roomuserid_invitecount: builder.open_tree("roomuserid_invitecount")?,
+			userroomid_leftstate: builder.open_tree("userroomid_leftstate")?,
+			roomuserid_leftcount: builder.open_tree("roomuserid_leftcount")?,
+
+			disabledroomids: builder.open_tree("disabledroomids")?,
+
+			bannedroomids: builder.open_tree("bannedroomids")?,
+
+			lazyloadedids: builder.open_tree("lazyloadedids")?,
+
+			userroomid_notificationcount: builder.open_tree("userroomid_notificationcount")?,
+			userroomid_highlightcount: builder.open_tree("userroomid_highlightcount")?,
+			roomuserid_lastnotificationread: builder.open_tree("userroomid_highlightcount")?,
+
+			statekey_shortstatekey: builder.open_tree("statekey_shortstatekey")?,
+			shortstatekey_statekey: builder.open_tree("shortstatekey_statekey")?,
+
+			shorteventid_authchain: builder.open_tree("shorteventid_authchain")?,
+
+			roomid_shortroomid: builder.open_tree("roomid_shortroomid")?,
+
+			shortstatehash_statediff: builder.open_tree("shortstatehash_statediff")?,
+			eventid_shorteventid: builder.open_tree("eventid_shorteventid")?,
+			shorteventid_eventid: builder.open_tree("shorteventid_eventid")?,
+			shorteventid_shortstatehash: builder.open_tree("shorteventid_shortstatehash")?,
+			roomid_shortstatehash: builder.open_tree("roomid_shortstatehash")?,
+			roomsynctoken_shortstatehash: builder.open_tree("roomsynctoken_shortstatehash")?,
+			statehash_shortstatehash: builder.open_tree("statehash_shortstatehash")?,
+
+			eventid_outlierpdu: builder.open_tree("eventid_outlierpdu")?,
+			softfailedeventids: builder.open_tree("softfailedeventids")?,
+
+			tofrom_relation: builder.open_tree("tofrom_relation")?,
+			referencedevents: builder.open_tree("referencedevents")?,
+			roomuserdataid_accountdata: builder.open_tree("roomuserdataid_accountdata")?,
+			roomusertype_roomuserdataid: builder.open_tree("roomusertype_roomuserdataid")?,
+			mediaid_file: builder.open_tree("mediaid_file")?,
+			url_previews: builder.open_tree("url_previews")?,
+			mediaid_user: builder.open_tree("mediaid_user")?,
+			backupid_algorithm: builder.open_tree("backupid_algorithm")?,
+			backupid_etag: builder.open_tree("backupid_etag")?,
+			backupkeyid_backup: builder.open_tree("backupkeyid_backup")?,
+			userdevicetxnid_response: builder.open_tree("userdevicetxnid_response")?,
+			servername_educount: builder.open_tree("servername_educount")?,
+			servernameevent_data: builder.open_tree("servernameevent_data")?,
+			servercurrentevent_data: builder.open_tree("servercurrentevent_data")?,
+			id_appserviceregistrations: builder.open_tree("id_appserviceregistrations")?,
+			senderkey_pusher: builder.open_tree("senderkey_pusher")?,
+			global: builder.open_tree("global")?,
+			server_signingkeys: builder.open_tree("server_signingkeys")?,
+
+			roomid_inviteviaservers: builder.open_tree("roomid_inviteviaservers")?,
+
+			auth_chain_cache: Mutex::new(LruCache::new(
+				(f64::from(config.auth_chain_cache_capacity) * config.conduit_cache_capacity_modifier) as usize,
+			)),
+			our_real_users_cache: RwLock::new(HashMap::new()),
+			appservice_in_room_cache: RwLock::new(HashMap::new()),
+			lasttimelinecount_cache: Mutex::new(HashMap::new()),
+		})
+	}
+}
+
+fn build(config: &Config) -> Result<Arc<dyn KeyValueDatabaseEngine>> {
+	match &*config.database_backend {
+		"sqlite" => {
+			debug!("Got sqlite database backend");
+			#[cfg(not(feature = "sqlite"))]
+			return Err(Error::bad_config("Database backend not found."));
+			#[cfg(feature = "sqlite")]
+			Ok(Arc::new(Arc::<crate::sqlite::Engine>::open(config)?))
+		},
+		"rocksdb" => {
+			debug!("Got rocksdb database backend");
+			#[cfg(not(feature = "rocksdb"))]
+			return Err(Error::bad_config("Database backend not found."));
+			#[cfg(feature = "rocksdb")]
+			Ok(Arc::new(Arc::<crate::rocksdb::Engine>::open(config)?))
+		},
+		_ => Err(Error::bad_config(
+			"Database backend not found. sqlite (not recommended) and rocksdb are the only supported backends.",
+		)),
+	}
+}
+
+fn check_db_setup(config: &Config) -> Result<()> {
+	let path = Path::new(&config.database_path);
+
+	let sqlite_exists = path.join("conduit.db").exists();
+	let rocksdb_exists = path.join("IDENTITY").exists();
+
+	if sqlite_exists && rocksdb_exists {
+		return Err(Error::bad_config("Multiple databases at database_path detected."));
+	}
+
+	if sqlite_exists && config.database_backend != "sqlite" {
+		return Err(Error::bad_config(
+			"Found sqlite at database_path, but is not specified in config.",
+		));
+	}
+
+	if rocksdb_exists && config.database_backend != "rocksdb" {
+		return Err(Error::bad_config(
+			"Found rocksdb at database_path, but is not specified in config.",
+		));
+	}
+
+	Ok(())
+}

src/database/kvengine.rs

@@ -3,7 +3,7 @@ use std::{error::Error, sync::Arc};
 use super::{Config, KvTree};
 use crate::Result;
 
-pub(crate) trait KeyValueDatabaseEngine: Send + Sync {
+pub trait KeyValueDatabaseEngine: Send + Sync {
 	fn open(config: &Config) -> Result<Self>
 	where
 		Self: Sized;

src/database/kvtree.rs

@@ -2,7 +2,7 @@ use std::{future::Future, pin::Pin};
 
 use crate::Result;
 
-pub(crate) trait KvTree: Send + Sync {
+pub trait KvTree: Send + Sync {
 	fn get(&self, key: &[u8]) -> Result<Option<Vec<u8>>>;
 
 	#[allow(dead_code)]

src/database/mod.rs

@@ -1,573 +1,23 @@
-mod cork;
+pub mod cork;
-mod key_value;
+mod kvdatabase;
 mod kvengine;
 mod kvtree;
-mod migrations;
 
 #[cfg(feature = "rocksdb")]
-mod rocksdb;
+pub(crate) mod rocksdb;
 
 #[cfg(feature = "sqlite")]
-mod sqlite;
+pub(crate) mod sqlite;
 
 #[cfg(any(feature = "sqlite", feature = "rocksdb"))]
 pub(crate) mod watchers;
 
-use std::{
+extern crate conduit_core as conduit;
-	collections::{BTreeMap, HashMap, HashSet},
+pub(crate) use conduit::{Config, Result};
-	fs::{self},
+pub use cork::Cork;
-	path::Path,
+pub use kvdatabase::KeyValueDatabase;
-	sync::{Arc, Mutex, RwLock},
+pub use kvengine::KeyValueDatabaseEngine;
-	time::Duration,
+pub use kvtree::KvTree;
-};
+
-
+conduit::mod_ctor! {}
-pub(crate) use cork::Cork;
+conduit::mod_dtor! {}
-pub(crate) use kvengine::KeyValueDatabaseEngine;
-pub(crate) use kvtree::KvTree;
-use lru_cache::LruCache;
-use ruma::{
-	events::{
-		push_rules::PushRulesEventContent, room::message::RoomMessageEventContent, GlobalAccountDataEvent,
-		GlobalAccountDataEventType,
-	},
-	push::Ruleset,
-	CanonicalJsonValue, OwnedDeviceId, OwnedRoomId, OwnedUserId, UserId,
-};
-use serde::Deserialize;
-#[cfg(unix)]
-use tokio::signal::unix::{signal, SignalKind};
-use tokio::time::{interval, Instant};
-use tracing::{debug, error, warn};
-
-use crate::{
-	database::migrations::migrations, service::rooms::timeline::PduCount, services, Config, Error,
-	LogLevelReloadHandles, Result, Services, SERVICES,
-};
-
-pub(crate) struct KeyValueDatabase {
-	db: Arc<dyn KeyValueDatabaseEngine>,
-
-	//pub(crate) globals: globals::Globals,
-	pub(crate) global: Arc<dyn KvTree>,
-	pub(crate) server_signingkeys: Arc<dyn KvTree>,
-
-	pub(crate) roomid_inviteviaservers: Arc<dyn KvTree>,
-
-	//pub(crate) users: users::Users,
-	pub(crate) userid_password: Arc<dyn KvTree>,
-	pub(crate) userid_displayname: Arc<dyn KvTree>,
-	pub(crate) userid_avatarurl: Arc<dyn KvTree>,
-	pub(crate) userid_blurhash: Arc<dyn KvTree>,
-	pub(crate) userdeviceid_token: Arc<dyn KvTree>,
-	pub(crate) userdeviceid_metadata: Arc<dyn KvTree>, // This is also used to check if a device exists
-	pub(crate) userid_devicelistversion: Arc<dyn KvTree>, // DevicelistVersion = u64
-	pub(crate) token_userdeviceid: Arc<dyn KvTree>,
-
-	pub(crate) onetimekeyid_onetimekeys: Arc<dyn KvTree>, // OneTimeKeyId = UserId + DeviceKeyId
-	pub(crate) userid_lastonetimekeyupdate: Arc<dyn KvTree>, // LastOneTimeKeyUpdate = Count
-	pub(crate) keychangeid_userid: Arc<dyn KvTree>,       // KeyChangeId = UserId/RoomId + Count
-	pub(crate) keyid_key: Arc<dyn KvTree>,                // KeyId = UserId + KeyId (depends on key type)
-	pub(crate) userid_masterkeyid: Arc<dyn KvTree>,
-	pub(crate) userid_selfsigningkeyid: Arc<dyn KvTree>,
-	pub(crate) userid_usersigningkeyid: Arc<dyn KvTree>,
-
-	pub(crate) userfilterid_filter: Arc<dyn KvTree>, // UserFilterId = UserId + FilterId
-	pub(crate) todeviceid_events: Arc<dyn KvTree>,   // ToDeviceId = UserId + DeviceId + Count
-	pub(crate) userid_presenceid: Arc<dyn KvTree>,   // UserId => Count
-	pub(crate) presenceid_presence: Arc<dyn KvTree>, // Count + UserId => Presence
-
-	//pub(crate) uiaa: uiaa::Uiaa,
-	pub(crate) userdevicesessionid_uiaainfo: Arc<dyn KvTree>, // User-interactive authentication
-	pub(crate) userdevicesessionid_uiaarequest:
-		RwLock<BTreeMap<(OwnedUserId, OwnedDeviceId, String), CanonicalJsonValue>>,
-
-	//pub(crate) edus: RoomEdus,
-	pub(crate) readreceiptid_readreceipt: Arc<dyn KvTree>, // ReadReceiptId = RoomId + Count + UserId
-	pub(crate) roomuserid_privateread: Arc<dyn KvTree>,    // RoomUserId = Room + User, PrivateRead = Count
-	pub(crate) roomuserid_lastprivatereadupdate: Arc<dyn KvTree>, // LastPrivateReadUpdate = Count
-
-	//pub(crate) rooms: rooms::Rooms,
-	pub(crate) pduid_pdu: Arc<dyn KvTree>, // PduId = ShortRoomId + Count
-	pub(crate) eventid_pduid: Arc<dyn KvTree>,
-	pub(crate) roomid_pduleaves: Arc<dyn KvTree>,
-	pub(crate) alias_roomid: Arc<dyn KvTree>,
-	pub(crate) aliasid_alias: Arc<dyn KvTree>, // AliasId = RoomId + Count
-	pub(crate) publicroomids: Arc<dyn KvTree>,
-
-	pub(crate) threadid_userids: Arc<dyn KvTree>, // ThreadId = RoomId + Count
-
-	pub(crate) tokenids: Arc<dyn KvTree>, // TokenId = ShortRoomId + Token + PduIdCount
-
-	/// Participating servers in a room.
-	pub(crate) roomserverids: Arc<dyn KvTree>, // RoomServerId = RoomId + ServerName
-	pub(crate) serverroomids: Arc<dyn KvTree>, // ServerRoomId = ServerName + RoomId
-
-	pub(crate) userroomid_joined: Arc<dyn KvTree>,
-	pub(crate) roomuserid_joined: Arc<dyn KvTree>,
-	pub(crate) roomid_joinedcount: Arc<dyn KvTree>,
-	pub(crate) roomid_invitedcount: Arc<dyn KvTree>,
-	pub(crate) roomuseroncejoinedids: Arc<dyn KvTree>,
-	pub(crate) userroomid_invitestate: Arc<dyn KvTree>, // InviteState = Vec<Raw<Pdu>>
-	pub(crate) roomuserid_invitecount: Arc<dyn KvTree>, // InviteCount = Count
-	pub(crate) userroomid_leftstate: Arc<dyn KvTree>,
-	pub(crate) roomuserid_leftcount: Arc<dyn KvTree>,
-
-	pub(crate) disabledroomids: Arc<dyn KvTree>, // Rooms where incoming federation handling is disabled
-
-	pub(crate) bannedroomids: Arc<dyn KvTree>, // Rooms where local users are not allowed to join
-
-	pub(crate) lazyloadedids: Arc<dyn KvTree>, // LazyLoadedIds = UserId + DeviceId + RoomId + LazyLoadedUserId
-
-	pub(crate) userroomid_notificationcount: Arc<dyn KvTree>, // NotifyCount = u64
-	pub(crate) userroomid_highlightcount: Arc<dyn KvTree>,    // HightlightCount = u64
-	pub(crate) roomuserid_lastnotificationread: Arc<dyn KvTree>, // LastNotificationRead = u64
-
-	/// Remember the current state hash of a room.
-	pub(crate) roomid_shortstatehash: Arc<dyn KvTree>,
-	pub(crate) roomsynctoken_shortstatehash: Arc<dyn KvTree>,
-	/// Remember the state hash at events in the past.
-	pub(crate) shorteventid_shortstatehash: Arc<dyn KvTree>,
-	pub(crate) statekey_shortstatekey: Arc<dyn KvTree>, /* StateKey = EventType + StateKey, ShortStateKey =
-	                                                     * Count */
-	pub(crate) shortstatekey_statekey: Arc<dyn KvTree>,
-
-	pub(crate) roomid_shortroomid: Arc<dyn KvTree>,
-
-	pub(crate) shorteventid_eventid: Arc<dyn KvTree>,
-	pub(crate) eventid_shorteventid: Arc<dyn KvTree>,
-
-	pub(crate) statehash_shortstatehash: Arc<dyn KvTree>,
-	pub(crate) shortstatehash_statediff: Arc<dyn KvTree>, /* StateDiff = parent (or 0) +
-	                                                       * (shortstatekey+shorteventid++) + 0_u64 +
-	                                                       * (shortstatekey+shorteventid--) */
-
-	pub(crate) shorteventid_authchain: Arc<dyn KvTree>,
-
-	/// RoomId + EventId -> outlier PDU.
-	/// Any pdu that has passed the steps 1-8 in the incoming event
-	/// /federation/send/txn.
-	pub(crate) eventid_outlierpdu: Arc<dyn KvTree>,
-	pub(crate) softfailedeventids: Arc<dyn KvTree>,
-
-	/// ShortEventId + ShortEventId -> ().
-	pub(crate) tofrom_relation: Arc<dyn KvTree>,
-	/// RoomId + EventId -> Parent PDU EventId.
-	pub(crate) referencedevents: Arc<dyn KvTree>,
-
-	//pub(crate) account_data: account_data::AccountData,
-	pub(crate) roomuserdataid_accountdata: Arc<dyn KvTree>, // RoomUserDataId = Room + User + Count + Type
-	pub(crate) roomusertype_roomuserdataid: Arc<dyn KvTree>, // RoomUserType = Room + User + Type
-
-	//pub(crate) media: media::Media,
-	pub(crate) mediaid_file: Arc<dyn KvTree>, // MediaId = MXC + WidthHeight + ContentDisposition + ContentType
-	pub(crate) url_previews: Arc<dyn KvTree>,
-	pub(crate) mediaid_user: Arc<dyn KvTree>,
-	//pub(crate) key_backups: key_backups::KeyBackups,
-	pub(crate) backupid_algorithm: Arc<dyn KvTree>, // BackupId = UserId + Version(Count)
-	pub(crate) backupid_etag: Arc<dyn KvTree>,      // BackupId = UserId + Version(Count)
-	pub(crate) backupkeyid_backup: Arc<dyn KvTree>, // BackupKeyId = UserId + Version + RoomId + SessionId
-
-	//pub(crate) transaction_ids: transaction_ids::TransactionIds,
-	pub(crate) userdevicetxnid_response: Arc<dyn KvTree>, /* Response can be empty (/sendToDevice) or the event id
-	                                                       * (/send) */
-	//pub(crate) sending: sending::Sending,
-	pub(crate) servername_educount: Arc<dyn KvTree>, // EduCount: Count of last EDU sync
-	pub(crate) servernameevent_data: Arc<dyn KvTree>, /* ServernameEvent = (+ / $)SenderKey / ServerName / UserId +
-	                                                  * PduId / Id (for edus), Data = EDU content */
-	pub(crate) servercurrentevent_data: Arc<dyn KvTree>, /* ServerCurrentEvents = (+ / $)ServerName / UserId + PduId
-	                                                      * / Id (for edus), Data = EDU content */
-
-	//pub(crate) appservice: appservice::Appservice,
-	pub(crate) id_appserviceregistrations: Arc<dyn KvTree>,
-
-	//pub(crate) pusher: pusher::PushData,
-	pub(crate) senderkey_pusher: Arc<dyn KvTree>,
-
-	pub(crate) auth_chain_cache: Mutex<LruCache<Vec<u64>, Arc<[u64]>>>,
-	pub(crate) our_real_users_cache: RwLock<HashMap<OwnedRoomId, Arc<HashSet<OwnedUserId>>>>,
-	pub(crate) appservice_in_room_cache: RwLock<HashMap<OwnedRoomId, HashMap<String, bool>>>,
-	pub(crate) lasttimelinecount_cache: Mutex<HashMap<OwnedRoomId, PduCount>>,
-}
-
-#[derive(Deserialize)]
-struct CheckForUpdatesResponseEntry {
-	id: u64,
-	date: String,
-	message: String,
-}
-#[derive(Deserialize)]
-struct CheckForUpdatesResponse {
-	updates: Vec<CheckForUpdatesResponseEntry>,
-}
-
-impl KeyValueDatabase {
-	/// Load an existing database or create a new one.
-	#[allow(clippy::too_many_lines)]
-	pub(crate) async fn load_or_create(config: Config, tracing_reload_handler: LogLevelReloadHandles) -> Result<()> {
-		Self::check_db_setup(&config)?;
-
-		if !Path::new(&config.database_path).exists() {
-			debug!("Database path does not exist, assuming this is a new setup and creating it");
-			fs::create_dir_all(&config.database_path).map_err(|e| {
-				error!("Failed to create database path: {e}");
-				Error::bad_config(
-					"Database folder doesn't exists and couldn't be created (e.g. due to missing permissions). Please \
-					 create the database folder yourself or allow conduwuit the permissions to create directories and \
-					 files.",
-				)
-			})?;
-		}
-
-		let builder: Arc<dyn KeyValueDatabaseEngine> = match &*config.database_backend {
-			"sqlite" => {
-				debug!("Got sqlite database backend");
-				#[cfg(not(feature = "sqlite"))]
-				return Err(Error::bad_config("Database backend not found."));
-				#[cfg(feature = "sqlite")]
-				Arc::new(Arc::<sqlite::Engine>::open(&config)?)
-			},
-			"rocksdb" => {
-				debug!("Got rocksdb database backend");
-				#[cfg(not(feature = "rocksdb"))]
-				return Err(Error::bad_config("Database backend not found."));
-				#[cfg(feature = "rocksdb")]
-				Arc::new(Arc::<rocksdb::Engine>::open(&config)?)
-			},
-			_ => {
-				return Err(Error::bad_config(
-					"Database backend not found. sqlite (not recommended) and rocksdb are the only supported backends.",
-				));
-			},
-		};
-
-		let db_raw = Box::new(Self {
-			db: builder.clone(),
-			userid_password: builder.open_tree("userid_password")?,
-			userid_displayname: builder.open_tree("userid_displayname")?,
-			userid_avatarurl: builder.open_tree("userid_avatarurl")?,
-			userid_blurhash: builder.open_tree("userid_blurhash")?,
-			userdeviceid_token: builder.open_tree("userdeviceid_token")?,
-			userdeviceid_metadata: builder.open_tree("userdeviceid_metadata")?,
-			userid_devicelistversion: builder.open_tree("userid_devicelistversion")?,
-			token_userdeviceid: builder.open_tree("token_userdeviceid")?,
-			onetimekeyid_onetimekeys: builder.open_tree("onetimekeyid_onetimekeys")?,
-			userid_lastonetimekeyupdate: builder.open_tree("userid_lastonetimekeyupdate")?,
-			keychangeid_userid: builder.open_tree("keychangeid_userid")?,
-			keyid_key: builder.open_tree("keyid_key")?,
-			userid_masterkeyid: builder.open_tree("userid_masterkeyid")?,
-			userid_selfsigningkeyid: builder.open_tree("userid_selfsigningkeyid")?,
-			userid_usersigningkeyid: builder.open_tree("userid_usersigningkeyid")?,
-			userfilterid_filter: builder.open_tree("userfilterid_filter")?,
-			todeviceid_events: builder.open_tree("todeviceid_events")?,
-			userid_presenceid: builder.open_tree("userid_presenceid")?,
-			presenceid_presence: builder.open_tree("presenceid_presence")?,
-
-			userdevicesessionid_uiaainfo: builder.open_tree("userdevicesessionid_uiaainfo")?,
-			userdevicesessionid_uiaarequest: RwLock::new(BTreeMap::new()),
-			readreceiptid_readreceipt: builder.open_tree("readreceiptid_readreceipt")?,
-			roomuserid_privateread: builder.open_tree("roomuserid_privateread")?, // "Private" read receipt
-			roomuserid_lastprivatereadupdate: builder.open_tree("roomuserid_lastprivatereadupdate")?,
-			pduid_pdu: builder.open_tree("pduid_pdu")?,
-			eventid_pduid: builder.open_tree("eventid_pduid")?,
-			roomid_pduleaves: builder.open_tree("roomid_pduleaves")?,
-
-			alias_roomid: builder.open_tree("alias_roomid")?,
-			aliasid_alias: builder.open_tree("aliasid_alias")?,
-			publicroomids: builder.open_tree("publicroomids")?,
-
-			threadid_userids: builder.open_tree("threadid_userids")?,
-
-			tokenids: builder.open_tree("tokenids")?,
-
-			roomserverids: builder.open_tree("roomserverids")?,
-			serverroomids: builder.open_tree("serverroomids")?,
-			userroomid_joined: builder.open_tree("userroomid_joined")?,
-			roomuserid_joined: builder.open_tree("roomuserid_joined")?,
-			roomid_joinedcount: builder.open_tree("roomid_joinedcount")?,
-			roomid_invitedcount: builder.open_tree("roomid_invitedcount")?,
-			roomuseroncejoinedids: builder.open_tree("roomuseroncejoinedids")?,
-			userroomid_invitestate: builder.open_tree("userroomid_invitestate")?,
-			roomuserid_invitecount: builder.open_tree("roomuserid_invitecount")?,
-			userroomid_leftstate: builder.open_tree("userroomid_leftstate")?,
-			roomuserid_leftcount: builder.open_tree("roomuserid_leftcount")?,
-
-			disabledroomids: builder.open_tree("disabledroomids")?,
-
-			bannedroomids: builder.open_tree("bannedroomids")?,
-
-			lazyloadedids: builder.open_tree("lazyloadedids")?,
-
-			userroomid_notificationcount: builder.open_tree("userroomid_notificationcount")?,
-			userroomid_highlightcount: builder.open_tree("userroomid_highlightcount")?,
-			roomuserid_lastnotificationread: builder.open_tree("userroomid_highlightcount")?,
-
-			statekey_shortstatekey: builder.open_tree("statekey_shortstatekey")?,
-			shortstatekey_statekey: builder.open_tree("shortstatekey_statekey")?,
-
-			shorteventid_authchain: builder.open_tree("shorteventid_authchain")?,
-
-			roomid_shortroomid: builder.open_tree("roomid_shortroomid")?,
-
-			shortstatehash_statediff: builder.open_tree("shortstatehash_statediff")?,
-			eventid_shorteventid: builder.open_tree("eventid_shorteventid")?,
-			shorteventid_eventid: builder.open_tree("shorteventid_eventid")?,
-			shorteventid_shortstatehash: builder.open_tree("shorteventid_shortstatehash")?,
-			roomid_shortstatehash: builder.open_tree("roomid_shortstatehash")?,
-			roomsynctoken_shortstatehash: builder.open_tree("roomsynctoken_shortstatehash")?,
-			statehash_shortstatehash: builder.open_tree("statehash_shortstatehash")?,
-
-			eventid_outlierpdu: builder.open_tree("eventid_outlierpdu")?,
-			softfailedeventids: builder.open_tree("softfailedeventids")?,
-
-			tofrom_relation: builder.open_tree("tofrom_relation")?,
-			referencedevents: builder.open_tree("referencedevents")?,
-			roomuserdataid_accountdata: builder.open_tree("roomuserdataid_accountdata")?,
-			roomusertype_roomuserdataid: builder.open_tree("roomusertype_roomuserdataid")?,
-			mediaid_file: builder.open_tree("mediaid_file")?,
-			url_previews: builder.open_tree("url_previews")?,
-			mediaid_user: builder.open_tree("mediaid_user")?,
-			backupid_algorithm: builder.open_tree("backupid_algorithm")?,
-			backupid_etag: builder.open_tree("backupid_etag")?,
-			backupkeyid_backup: builder.open_tree("backupkeyid_backup")?,
-			userdevicetxnid_response: builder.open_tree("userdevicetxnid_response")?,
-			servername_educount: builder.open_tree("servername_educount")?,
-			servernameevent_data: builder.open_tree("servernameevent_data")?,
-			servercurrentevent_data: builder.open_tree("servercurrentevent_data")?,
-			id_appserviceregistrations: builder.open_tree("id_appserviceregistrations")?,
-			senderkey_pusher: builder.open_tree("senderkey_pusher")?,
-			global: builder.open_tree("global")?,
-			server_signingkeys: builder.open_tree("server_signingkeys")?,
-
-			roomid_inviteviaservers: builder.open_tree("roomid_inviteviaservers")?,
-
-			#[allow(clippy::as_conversions, clippy::cast_sign_loss, clippy::cast_possible_truncation)]
-			auth_chain_cache: Mutex::new(LruCache::new(
-				(f64::from(config.auth_chain_cache_capacity) * config.conduit_cache_capacity_modifier) as usize,
-			)),
-			our_real_users_cache: RwLock::new(HashMap::new()),
-			appservice_in_room_cache: RwLock::new(HashMap::new()),
-			lasttimelinecount_cache: Mutex::new(HashMap::new()),
-		});
-
-		let db = Box::leak(db_raw);
-
-		let services_raw = Box::new(Services::build(db, &config, tracing_reload_handler)?);
-
-		// This is the first and only time we initialize the SERVICE static
-		*SERVICES.write().unwrap() = Some(Box::leak(services_raw));
-
-		migrations(db, &config).await?;
-
-		services().admin.start_handler();
-
-		// Set emergency access for the conduit user
-		match set_emergency_access() {
-			Ok(pwd_set) => {
-				if pwd_set {
-					warn!(
-						"The Conduit account emergency password is set! Please unset it as soon as you finish admin \
-						 account recovery!"
-					);
-					services()
-						.admin
-						.send_message(RoomMessageEventContent::text_plain(
-							"The Conduit account emergency password is set! Please unset it as soon as you finish \
-							 admin account recovery!",
-						))
-						.await;
-				}
-			},
-			Err(e) => {
-				error!("Could not set the configured emergency password for the conduit user: {}", e);
-			},
-		};
-
-		services().sending.start_handler();
-
-		if config.allow_local_presence {
-			services().presence.start_handler();
-		}
-
-		Self::start_cleanup_task().await;
-		if services().globals.allow_check_for_updates() {
-			Self::start_check_for_updates_task().await;
-		}
-
-		Ok(())
-	}
-
-	fn check_db_setup(config: &Config) -> Result<()> {
-		let path = Path::new(&config.database_path);
-
-		let sqlite_exists = path.join("conduit.db").exists();
-		let rocksdb_exists = path.join("IDENTITY").exists();
-
-		if sqlite_exists && rocksdb_exists {
-			return Err(Error::bad_config("Multiple databases at database_path detected."));
-		}
-
-		if sqlite_exists && config.database_backend != "sqlite" {
-			return Err(Error::bad_config(
-				"Found sqlite at database_path, but is not specified in config.",
-			));
-		}
-
-		if rocksdb_exists && config.database_backend != "rocksdb" {
-			return Err(Error::bad_config(
-				"Found rocksdb at database_path, but is not specified in config.",
-			));
-		}
-
-		Ok(())
-	}
-
-	#[tracing::instrument]
-	async fn start_check_for_updates_task() {
-		let timer_interval = Duration::from_secs(7200); // 2 hours
-
-		tokio::spawn(async move {
-			let mut i = interval(timer_interval);
-
-			loop {
-				tokio::select! {
-					_ = i.tick() => {
-						debug!(target: "start_check_for_updates_task", "Timer ticked");
-					},
-				}
-
-				_ = Self::try_handle_updates().await;
-			}
-		});
-	}
-
-	async fn try_handle_updates() -> Result<()> {
-		let response = services()
-			.globals
-			.client
-			.default
-			.get("https://pupbrain.dev/check-for-updates/stable")
-			.send()
-			.await?;
-
-		let response = serde_json::from_str::<CheckForUpdatesResponse>(&response.text().await?).map_err(|e| {
-			error!("Bad check for updates response: {e}");
-			Error::BadServerResponse("Bad version check response")
-		})?;
-
-		let mut last_update_id = services().globals.last_check_for_updates_id()?;
-		for update in response.updates {
-			last_update_id = last_update_id.max(update.id);
-			if update.id > services().globals.last_check_for_updates_id()? {
-				error!("{}", update.message);
-				services()
-					.admin
-					.send_message(RoomMessageEventContent::text_plain(format!(
-						"@room: the following is a message from the conduwuit puppy. it was sent on '{}':\n\n{}",
-						update.date, update.message
-					)))
-					.await;
-			}
-		}
-		services()
-			.globals
-			.update_check_for_updates_id(last_update_id)?;
-
-		Ok(())
-	}
-
-	#[tracing::instrument]
-	async fn start_cleanup_task() {
-		let timer_interval = Duration::from_secs(u64::from(services().globals.config.cleanup_second_interval));
-
-		tokio::spawn(async move {
-			let mut i = interval(timer_interval);
-
-			#[cfg(unix)]
-			let mut hangup = signal(SignalKind::hangup()).expect("Failed to register SIGHUP signal receiver");
-			#[cfg(unix)]
-			let mut ctrl_c = signal(SignalKind::interrupt()).expect("Failed to register SIGINT signal receiver");
-			#[cfg(unix)]
-			let mut terminate = signal(SignalKind::terminate()).expect("Failed to register SIGTERM signal receiver");
-
-			loop {
-				#[cfg(unix)]
-				tokio::select! {
-					_ = i.tick() => {
-						debug!(target: "database-cleanup", "Timer ticked");
-					}
-					_ = hangup.recv() => {
-						debug!(target: "database-cleanup","Received SIGHUP");
-					}
-					_ = ctrl_c.recv() => {
-						debug!(target: "database-cleanup", "Received Ctrl+C");
-					}
-					_ = terminate.recv() => {
-						debug!(target: "database-cleanup","Received SIGTERM");
-					}
-				}
-
-				#[cfg(not(unix))]
-				{
-					i.tick().await;
-					debug!(target: "database-cleanup", "Timer ticked")
-				}
-
-				Self::perform_cleanup();
-			}
-		});
-	}
-
-	fn perform_cleanup() {
-		if !services().globals.config.rocksdb_periodic_cleanup {
-			return;
-		}
-
-		let start = Instant::now();
-		if let Err(e) = services().globals.cleanup() {
-			error!(target: "database-cleanup", "Ran into an error during cleanup: {}", e);
-		} else {
-			debug!(target: "database-cleanup", "Finished cleanup in {:#?}.", start.elapsed());
-		}
-	}
-
-	#[allow(dead_code)]
-	fn flush(&self) -> Result<()> {
-		let start = std::time::Instant::now();
-
-		let res = self.db.flush();
-
-		debug!("flush: took {:?}", start.elapsed());
-
-		res
-	}
-}
-
-/// Sets the emergency password and push rules for the @conduit account in case
-/// emergency password is set
-fn set_emergency_access() -> Result<bool> {
-	let conduit_user = UserId::parse_with_server_name("conduit", services().globals.server_name())
-		.expect("@conduit:server_name is a valid UserId");
-
-	services()
-		.users
-		.set_password(&conduit_user, services().globals.emergency_password().as_deref())?;
-
-	let (ruleset, res) = match services().globals.emergency_password() {
-		Some(_) => (Ruleset::server_default(&conduit_user), Ok(true)),
-		None => (Ruleset::new(), Ok(false)),
-	};
-
-	services().account_data.update(
-		None,
-		&conduit_user,
-		GlobalAccountDataEventType::PushRules.to_string().into(),
-		&serde_json::to_value(&GlobalAccountDataEvent {
-			content: PushRulesEventContent {
-				global: ruleset,
-			},
-		})
-		.expect("to json value always works"),
-	)?;
-
-	res
-}

src/database/rocksdb/kvtree.rs

@@ -1,9 +1,8 @@
 use std::{future::Future, pin::Pin, sync::Arc};
 
-use rust_rocksdb::WriteBatchWithTransaction;
+use conduit::{utils, Result};
 
-use super::{watchers::Watchers, Engine, KeyValueDatabaseEngine, KvTree};
+use super::{rust_rocksdb::WriteBatchWithTransaction, watchers::Watchers, Engine, KeyValueDatabaseEngine, KvTree};
-use crate::{utils, Result};
 
 pub(crate) struct RocksDbEngineTree<'a> {
 	pub(crate) db: Arc<Engine>,

src/database/rocksdb/mod.rs

@@ -1,3 +1,8 @@
+// no_link to prevent double-inclusion of librocksdb.a here and with
+// libconduit_core.so
+#[no_link]
+extern crate rust_rocksdb;
+
 use std::{
 	collections::HashMap,
 	sync::{atomic::AtomicU32, Arc},
@@ -6,12 +11,12 @@ use std::{
 use chrono::{DateTime, Utc};
 use rust_rocksdb::{
 	backup::{BackupEngine, BackupEngineOptions},
+	perf::get_memory_usage_stats,
 	Cache, ColumnFamilyDescriptor, DBCommon, DBWithThreadMode as Db, Env, MultiThreaded, Options,
 };
 use tracing::{debug, error, info, warn};
 
-use super::{super::Config, watchers::Watchers, KeyValueDatabaseEngine, KvTree};
+use crate::{watchers::Watchers, Config, KeyValueDatabaseEngine, KvTree, Result};
-use crate::Result;
 
 pub(crate) mod kvtree;
 pub(crate) mod opts;
@@ -22,13 +27,13 @@ use opts::{cf_options, db_options};
 use super::watchers;
 
 pub(crate) struct Engine {
-	rocks: Db<MultiThreaded>,
+	config: Config,
 	row_cache: Cache,
 	col_cache: HashMap<String, Cache>,
-	old_cfs: Vec<String>,
 	opts: Options,
 	env: Env,
-	config: Config,
+	old_cfs: Vec<String>,
+	rocks: Db<MultiThreaded>,
 	corks: AtomicU32,
 }
 
@@ -79,13 +84,13 @@ impl KeyValueDatabaseEngine for Arc<Engine> {
 			load_time.elapsed()
 		);
 		Ok(Arc::new(Engine {
-			rocks: db,
+			config: config.clone(),
 			row_cache,
 			col_cache,
-			old_cfs: cfs,
 			opts: db_opts,
 			env: db_env,
-			config: config.clone(),
+			old_cfs: cfs,
+			rocks: db,
 			corks: AtomicU32::new(0),
 		}))
 	}
@@ -135,7 +140,7 @@ impl KeyValueDatabaseEngine for Arc<Engine> {
 	#[allow(clippy::as_conversions, clippy::cast_sign_loss, clippy::cast_possible_truncation)]
 	fn memory_usage(&self) -> Result<String> {
 		let mut res = String::new();
-		let stats = rust_rocksdb::perf::get_memory_usage_stats(Some(&[&self.rocks]), Some(&[&self.row_cache]))?;
+		let stats = get_memory_usage_stats(Some(&[&self.rocks]), Some(&[&self.row_cache]))?;
 		_ = std::fmt::write(
 			&mut res,
 			format_args!(
@@ -258,3 +263,20 @@ impl KeyValueDatabaseEngine for Arc<Engine> {
 	#[allow(dead_code)]
 	fn clear_caches(&self) {}
 }
+
+impl Drop for Engine {
+	fn drop(&mut self) {
+		debug!("Waiting for background tasks to finish...");
+		const BLOCKING: bool = true;
+		self.rocks.cancel_all_background_work(BLOCKING);
+
+		debug!("Shutting down background threads");
+		self.env.set_high_priority_background_threads(0);
+		self.env.set_low_priority_background_threads(0);
+		self.env.set_bottom_priority_background_threads(0);
+		self.env.set_background_threads(0);
+
+		debug!("Joining background threads...");
+		self.env.join_all_threads();
+	}
+}

src/database/rocksdb/opts.rs

@@ -1,14 +1,14 @@
 #![allow(dead_code)]
-
 use std::collections::HashMap;
 
-use rust_rocksdb::{
+use super::{
+	rust_rocksdb::{
 		BlockBasedOptions, Cache, DBCompactionStyle, DBCompressionType, DBRecoveryMode, Env, LogLevel, Options,
 		UniversalCompactOptions, UniversalCompactionStopStyle,
+	},
+	Config,
 };
 
-use super::Config;
-
 /// Create database-wide options suitable for opening the database. This also
 /// sets our default column options in case of opening a column with the same
 /// resulting value. Note that we require special per-column options on some

src/database/sqlite/mod.rs

@@ -6,13 +6,13 @@ use std::{
 	sync::Arc,
 };
 
+use conduit::{Config, Result};
 use parking_lot::{Mutex, MutexGuard};
 use rusqlite::{Connection, DatabaseName::Main, OptionalExtension};
 use thread_local::ThreadLocal;
 use tracing::debug;
 
 use super::{watchers::Watchers, KeyValueDatabaseEngine, KvTree};
-use crate::{database::Config, Result};
 
 thread_local! {
 	static READ_CONNECTION: RefCell<Option<&'static Connection>> = const { RefCell::new(None) };
@@ -224,7 +224,7 @@ impl KvTree for SqliteTable {
 		guard.execute("BEGIN", [])?;
 		for key in iter {
 			let old = self.get_with_guard(&guard, &key)?;
-			let new = crate::utils::increment(old.as_deref());
+			let new = conduit::utils::increment(old.as_deref());
 			self.insert_with_guard(&guard, &key, &new)?;
 		}
 		guard.execute("COMMIT", [])?;
@@ -307,7 +307,7 @@ impl KvTree for SqliteTable {
 
 		let old = self.get_with_guard(&guard, key)?;
 
-		let new = crate::utils::increment(old.as_deref());
+		let new = conduit::utils::increment(old.as_deref());
 
 		self.insert_with_guard(&guard, key, &new)?;
 

src/main.rs

@@ -1,503 +0,0 @@
-#[cfg(unix)]
-use std::fs::Permissions; // not unix specific, just only for UNIX sockets stuff and *nix container checks
-#[cfg(unix)]
-use std::os::unix::fs::PermissionsExt as _; /* not unix specific, just only for UNIX sockets stuff and *nix
-                                             * container checks */
-// Not async due to services() being used in many closures, and async closures
-// are not stable as of writing This is the case for every other occurence of
-// sync Mutex/RwLock, except for database related ones
-use std::sync::{Arc, RwLock};
-use std::{io, net::SocketAddr, time::Duration};
-
-use api::ruma_wrapper::{Ruma, RumaResponse};
-use axum::Router;
-use axum_server::{bind, bind_rustls, tls_rustls::RustlsConfig, Handle as ServerHandle};
-#[cfg(feature = "axum_dual_protocol")]
-use axum_server_dual_protocol::ServerExt;
-use config::Config;
-use database::KeyValueDatabase;
-use service::{pdu::PduEvent, Services};
-use tokio::{
-	signal,
-	sync::oneshot::{self, Sender},
-	task::JoinSet,
-};
-use tracing::{debug, error, info, warn};
-use tracing_subscriber::{prelude::*, reload, EnvFilter, Registry};
-use utils::{
-	clap,
-	error::{Error, Result},
-};
-
-pub(crate) mod alloc;
-mod api;
-mod config;
-mod database;
-mod router;
-mod service;
-mod utils;
-
-pub(crate) static SERVICES: RwLock<Option<&'static Services<'static>>> = RwLock::new(None);
-
-#[must_use]
-pub(crate) fn services() -> &'static Services<'static> {
-	SERVICES
-		.read()
-		.unwrap()
-		.expect("SERVICES should be initialized when this is called")
-}
-
-pub(crate) struct Server {
-	config: Config,
-
-	runtime: tokio::runtime::Runtime,
-
-	tracing_reload_handle: LogLevelReloadHandles,
-
-	#[cfg(feature = "sentry_telemetry")]
-	_sentry_guard: Option<sentry::ClientInitGuard>,
-
-	_tracing_flame_guard: TracingFlameGuard,
-}
-
-fn main() -> Result<(), Error> {
-	let args = clap::parse();
-	let conduwuit: Server = init(args)?;
-
-	conduwuit
-		.runtime
-		.block_on(async { async_main(&conduwuit).await })
-}
-
-async fn async_main(server: &Server) -> Result<(), Error> {
-	if let Err(error) = start(server).await {
-		error!("Critical error starting server: {error}");
-		return Err(Error::Err(format!("{error}")));
-	}
-
-	if let Err(error) = run(server).await {
-		error!("Critical error running server: {error}");
-		return Err(Error::Err(format!("{error}")));
-	}
-
-	if let Err(error) = stop(server).await {
-		error!("Critical error stopping server: {error}");
-		return Err(Error::Err(format!("{error}")));
-	}
-
-	Ok(())
-}
-
-async fn run(server: &Server) -> io::Result<()> {
-	let app = router::build(server).await?;
-	let (tx, rx) = oneshot::channel::<()>();
-	let handle = ServerHandle::new();
-	tokio::spawn(shutdown(handle.clone(), tx));
-
-	#[cfg(unix)]
-	if server.config.unix_socket_path.is_some() {
-		return run_unix_socket_server(server, app, rx).await;
-	}
-
-	let addrs = server.config.get_bind_addrs();
-	if server.config.tls.is_some() {
-		return run_tls_server(server, app, handle, addrs).await;
-	}
-
-	let mut join_set = JoinSet::new();
-	for addr in &addrs {
-		join_set.spawn(bind(*addr).handle(handle.clone()).serve(app.clone()));
-	}
-
-	#[allow(clippy::let_underscore_untyped)] // error[E0658]: attributes on expressions are experimental
-	#[cfg(feature = "systemd")]
-	let _ = sd_notify::notify(true, &[sd_notify::NotifyState::Ready]);
-
-	info!("Listening on {:?}", addrs);
-	join_set.join_next().await;
-
-	Ok(())
-}
-
-async fn run_tls_server(
-	server: &Server, app: axum::routing::IntoMakeService<Router>, handle: ServerHandle, addrs: Vec<SocketAddr>,
-) -> io::Result<()> {
-	let tls = server.config.tls.as_ref().unwrap();
-
-	debug!(
-		"Using direct TLS. Certificate path {} and certificate private key path {}",
-		&tls.certs, &tls.key
-	);
-	info!(
-		"Note: It is strongly recommended that you use a reverse proxy instead of running conduwuit directly with TLS."
-	);
-	let conf = RustlsConfig::from_pem_file(&tls.certs, &tls.key).await?;
-
-	if cfg!(feature = "axum_dual_protocol") {
-		info!(
-			"conduwuit was built with axum_dual_protocol feature to listen on both HTTP and HTTPS. This will only \
-			 take affect if `dual_protocol` is enabled in `[global.tls]`"
-		);
-	}
-
-	let mut join_set = JoinSet::new();
-
-	if cfg!(feature = "axum_dual_protocol") && tls.dual_protocol {
-		#[cfg(feature = "axum_dual_protocol")]
-		for addr in &addrs {
-			join_set.spawn(
-				axum_server_dual_protocol::bind_dual_protocol(*addr, conf.clone())
-					.set_upgrade(false)
-					.handle(handle.clone())
-					.serve(app.clone()),
-			);
-		}
-	} else {
-		for addr in &addrs {
-			join_set.spawn(
-				bind_rustls(*addr, conf.clone())
-					.handle(handle.clone())
-					.serve(app.clone()),
-			);
-		}
-	}
-
-	#[allow(clippy::let_underscore_untyped)] // error[E0658]: attributes on expressions are experimental
-	#[cfg(feature = "systemd")]
-	let _ = sd_notify::notify(true, &[sd_notify::NotifyState::Ready]);
-
-	if cfg!(feature = "axum_dual_protocol") && tls.dual_protocol {
-		warn!(
-			"Listening on {:?} with TLS certificate {} and supporting plain text (HTTP) connections too (insecure!)",
-			addrs, &tls.certs
-		);
-	} else {
-		info!("Listening on {:?} with TLS certificate {}", addrs, &tls.certs);
-	}
-
-	join_set.join_next().await;
-
-	Ok(())
-}
-
-#[cfg(unix)]
-#[allow(unused_variables)]
-async fn run_unix_socket_server(
-	server: &Server, app: axum::routing::IntoMakeService<Router>, rx: oneshot::Receiver<()>,
-) -> io::Result<()> {
-	let path = server.config.unix_socket_path.as_ref().unwrap();
-
-	if path.exists() {
-		warn!(
-			"UNIX socket path {:#?} already exists (unclean shutdown?), attempting to remove it.",
-			path.display()
-		);
-		tokio::fs::remove_file(&path).await?;
-	}
-
-	tokio::fs::create_dir_all(path.parent().unwrap()).await?;
-
-	let socket_perms = server.config.unix_socket_perms.to_string();
-	let octal_perms = u32::from_str_radix(&socket_perms, 8).unwrap();
-	tokio::fs::set_permissions(&path, Permissions::from_mode(octal_perms))
-		.await
-		.unwrap();
-
-	#[allow(clippy::let_underscore_untyped)] // error[E0658]: attributes on expressions are experimental
-	#[cfg(feature = "systemd")]
-	let _ = sd_notify::notify(true, &[sd_notify::NotifyState::Ready]);
-	let bind = tokio::net::UnixListener::bind(path)?;
-	info!("Listening at {:?}", path);
-
-	Ok(())
-}
-
-async fn shutdown(handle: ServerHandle, tx: Sender<()>) -> Result<()> {
-	let ctrl_c = async {
-		signal::ctrl_c()
-			.await
-			.expect("failed to install Ctrl+C handler");
-	};
-
-	#[cfg(unix)]
-	let terminate = async {
-		signal::unix::signal(signal::unix::SignalKind::terminate())
-			.expect("failed to install SIGTERM handler")
-			.recv()
-			.await;
-	};
-
-	let sig: &str;
-	#[cfg(unix)]
-	tokio::select! {
-		() = ctrl_c => { sig = "Ctrl+C"; },
-		() = terminate => { sig = "SIGTERM"; },
-	}
-	#[cfg(not(unix))]
-	tokio::select! {
-		_ = ctrl_c => { sig = "Ctrl+C"; },
-	}
-
-	warn!("Received {}, shutting down...", sig);
-	handle.graceful_shutdown(Some(Duration::from_secs(180)));
-	services().globals.shutdown();
-
-	#[allow(clippy::let_underscore_untyped)] // error[E0658]: attributes on expressions are experimental
-	#[cfg(feature = "systemd")]
-	let _ = sd_notify::notify(true, &[sd_notify::NotifyState::Stopping]);
-
-	tx.send(()).expect(
-		"failed sending shutdown transaction to oneshot channel (this is unlikely a conduwuit bug and more so your \
-		 system may not be in an okay/ideal state.)",
-	);
-
-	Ok(())
-}
-
-async fn stop(_server: &Server) -> io::Result<()> {
-	info!("Shutdown complete.");
-
-	Ok(())
-}
-
-/// Async initializations
-async fn start(server: &Server) -> Result<(), Error> {
-	KeyValueDatabase::load_or_create(server.config.clone(), server.tracing_reload_handle.clone()).await?;
-
-	Ok(())
-}
-
-/// Non-async initializations
-fn init(args: clap::Args) -> Result<Server, Error> {
-	let config = Config::new(args.config)?;
-
-	#[cfg(feature = "sentry_telemetry")]
-	let sentry_guard = if config.sentry {
-		Some(init_sentry(&config))
-	} else {
-		None
-	};
-
-	let (tracing_reload_handle, tracing_flame_guard) = init_tracing(&config);
-
-	config.check()?;
-
-	info!(
-		server_name = ?config.server_name,
-		database_path = ?config.database_path,
-		log_levels = ?config.log,
-		"{}",
-		utils::conduwuit_version(),
-	);
-
-	#[cfg(unix)]
-	maximize_fd_limit().expect("Unable to increase maximum soft and hard file descriptor limit");
-
-	Ok(Server {
-		config,
-
-		runtime: tokio::runtime::Builder::new_multi_thread()
-			.enable_io()
-			.enable_time()
-			.thread_name("conduwuit:worker")
-			.worker_threads(std::cmp::max(2, num_cpus::get()))
-			.build()
-			.unwrap(),
-
-		tracing_reload_handle,
-
-		#[cfg(feature = "sentry_telemetry")]
-		_sentry_guard: sentry_guard,
-		_tracing_flame_guard: tracing_flame_guard,
-	})
-}
-
-#[cfg(feature = "sentry_telemetry")]
-fn init_sentry(config: &Config) -> sentry::ClientInitGuard {
-	sentry::init((
-		config
-			.sentry_endpoint
-			.as_ref()
-			.expect("init_sentry should only be called if sentry is enabled and this is not None")
-			.as_str(),
-		sentry::ClientOptions {
-			release: sentry::release_name!(),
-			traces_sample_rate: config.sentry_traces_sample_rate,
-			server_name: if config.sentry_send_server_name {
-				Some(config.server_name.to_string().into())
-			} else {
-				None
-			},
-			..Default::default()
-		},
-	))
-}
-
-/// We need to store a reload::Handle value, but can't name it's type explicitly
-/// because the S type parameter depends on the subscriber's previous layers. In
-/// our case, this includes unnameable 'impl Trait' types.
-///
-/// This is fixed[1] in the unreleased tracing-subscriber from the master
-/// branch, which removes the S parameter. Unfortunately can't use it without
-/// pulling in a version of tracing that's incompatible with the rest of our
-/// deps.
-///
-/// To work around this, we define an trait without the S paramter that forwards
-/// to the reload::Handle::reload method, and then store the handle as a trait
-/// object.
-///
-/// [1]: <https://github.com/tokio-rs/tracing/pull/1035/commits/8a87ea52425098d3ef8f56d92358c2f6c144a28f>
-trait ReloadHandle<L> {
-	fn reload(&self, new_value: L) -> Result<(), reload::Error>;
-}
-
-impl<L, S> ReloadHandle<L> for reload::Handle<L, S> {
-	fn reload(&self, new_value: L) -> Result<(), reload::Error> { reload::Handle::reload(self, new_value) }
-}
-
-struct LogLevelReloadHandlesInner {
-	handles: Vec<Box<dyn ReloadHandle<EnvFilter> + Send + Sync>>,
-}
-
-/// Wrapper to allow reloading the filter on several several
-/// [`tracing_subscriber::reload::Handle`]s at once, with the same value.
-#[derive(Clone)]
-struct LogLevelReloadHandles {
-	inner: Arc<LogLevelReloadHandlesInner>,
-}
-
-impl LogLevelReloadHandles {
-	fn new(handles: Vec<Box<dyn ReloadHandle<EnvFilter> + Send + Sync>>) -> LogLevelReloadHandles {
-		LogLevelReloadHandles {
-			inner: Arc::new(LogLevelReloadHandlesInner {
-				handles,
-			}),
-		}
-	}
-
-	fn reload(&self, new_value: &EnvFilter) -> Result<(), reload::Error> {
-		for handle in &self.inner.handles {
-			handle.reload(new_value.clone())?;
-		}
-		Ok(())
-	}
-}
-
-#[cfg(feature = "perf_measurements")]
-type TracingFlameGuard = Option<tracing_flame::FlushGuard<io::BufWriter<std::fs::File>>>;
-#[cfg(not(feature = "perf_measurements"))]
-type TracingFlameGuard = ();
-
-// clippy thinks the filter_layer clones are redundant if the next usage is
-// behind a disabled feature.
-#[allow(clippy::redundant_clone)]
-fn init_tracing(config: &Config) -> (LogLevelReloadHandles, TracingFlameGuard) {
-	let registry = Registry::default();
-	let fmt_layer = tracing_subscriber::fmt::Layer::new();
-	let filter_layer = match EnvFilter::try_new(&config.log) {
-		Ok(s) => s,
-		Err(e) => {
-			eprintln!("It looks like your config is invalid. The following error occured while parsing it: {e}");
-			EnvFilter::try_new("warn").unwrap()
-		},
-	};
-
-	let mut reload_handles = Vec::<Box<dyn ReloadHandle<EnvFilter> + Send + Sync>>::new();
-	let subscriber = registry;
-
-	#[cfg(feature = "tokio_console")]
-	let subscriber = {
-		let console_layer = console_subscriber::spawn();
-		subscriber.with(console_layer)
-	};
-
-	let (fmt_reload_filter, fmt_reload_handle) = reload::Layer::new(filter_layer.clone());
-	reload_handles.push(Box::new(fmt_reload_handle));
-	let subscriber = subscriber.with(fmt_layer.with_filter(fmt_reload_filter));
-
-	#[cfg(feature = "sentry_telemetry")]
-	let subscriber = {
-		let sentry_layer = sentry_tracing::layer();
-		let (sentry_reload_filter, sentry_reload_handle) = reload::Layer::new(filter_layer.clone());
-		reload_handles.push(Box::new(sentry_reload_handle));
-		subscriber.with(sentry_layer.with_filter(sentry_reload_filter))
-	};
-
-	#[cfg(feature = "perf_measurements")]
-	let (subscriber, flame_guard) = {
-		let (flame_layer, flame_guard) = if config.tracing_flame {
-			let flame_filter = match EnvFilter::try_new(&config.tracing_flame_filter) {
-				Ok(flame_filter) => flame_filter,
-				Err(e) => panic!("tracing_flame_filter config value is invalid: {e}"),
-			};
-
-			let (flame_layer, flame_guard) =
-				match tracing_flame::FlameLayer::with_file(&config.tracing_flame_output_path) {
-					Ok(ok) => ok,
-					Err(e) => {
-						panic!("failed to initialize tracing-flame: {e}");
-					},
-				};
-			let flame_layer = flame_layer
-				.with_empty_samples(false)
-				.with_filter(flame_filter);
-			(Some(flame_layer), Some(flame_guard))
-		} else {
-			(None, None)
-		};
-
-		let jaeger_layer = if config.allow_jaeger {
-			opentelemetry::global::set_text_map_propagator(opentelemetry_jaeger::Propagator::new());
-			let tracer = opentelemetry_jaeger::new_agent_pipeline()
-				.with_auto_split_batch(true)
-				.with_service_name("conduwuit")
-				.install_batch(opentelemetry_sdk::runtime::Tokio)
-				.unwrap();
-			let telemetry = tracing_opentelemetry::layer().with_tracer(tracer);
-
-			let (jaeger_reload_filter, jaeger_reload_handle) = reload::Layer::new(filter_layer);
-			reload_handles.push(Box::new(jaeger_reload_handle));
-			Some(telemetry.with_filter(jaeger_reload_filter))
-		} else {
-			None
-		};
-
-		let subscriber = subscriber.with(flame_layer).with(jaeger_layer);
-		(subscriber, flame_guard)
-	};
-
-	#[cfg(not(feature = "perf_measurements"))]
-	#[cfg_attr(not(feature = "perf_measurements"), allow(clippy::let_unit_value))]
-	let flame_guard = ();
-
-	tracing::subscriber::set_global_default(subscriber).unwrap();
-
-	#[cfg(all(feature = "tokio_console", feature = "release_max_log_level"))]
-	error!(
-		"'tokio_console' feature and 'release_max_log_level' feature are incompatible, because console-subscriber \
-		 needs access to trace-level events. 'release_max_log_level' must be disabled to use tokio-console."
-	);
-
-	(LogLevelReloadHandles::new(reload_handles), flame_guard)
-}
-
-/// This is needed for opening lots of file descriptors, which tends to
-/// happen more often when using RocksDB and making lots of federation
-/// connections at startup. The soft limit is usually 1024, and the hard
-/// limit is usually 512000; I've personally seen it hit >2000.
-///
-/// * <https://www.freedesktop.org/software/systemd/man/systemd.exec.html#id-1.12.2.1.17.6>
-/// * <https://github.com/systemd/systemd/commit/0abf94923b4a95a7d89bc526efc84e7ca2b71741>
-#[cfg(unix)]
-fn maximize_fd_limit() -> Result<(), nix::errno::Errno> {
-	use nix::sys::resource::{getrlimit, setrlimit, Resource::RLIMIT_NOFILE as NOFILE};
-
-	let (soft_limit, hard_limit) = getrlimit(NOFILE)?;
-	if soft_limit < hard_limit {
-		setrlimit(NOFILE, hard_limit, hard_limit)?;
-		assert_eq!((hard_limit, hard_limit), getrlimit(NOFILE)?, "getrlimit != setrlimit");
-		debug!(to = hard_limit, from = soft_limit, "Raised RLIMIT_NOFILE",);
-	}
-
-	Ok(())
-}

src/router/Cargo.toml

@@ -0,0 +1,85 @@
+[package]
+name = "conduit_router"
+version.workspace = true
+edition.workspace = true
+
+[lib]
+path = "mod.rs"
+crate-type = [
+	"rlib",
+#	"dylib",
+]
+
+[features]
+default = [
+	"systemd",
+	"sentry_telemetry",
+	"gzip_compression",
+	"zstd_compression",
+	"brotli_compression",
+	"release_max_log_level",
+]
+
+dev_release_log_level = []
+release_max_log_level = [
+	"tracing/max_level_trace",
+	"tracing/release_max_level_info",
+	"log/max_level_trace",
+	"log/release_max_level_info",
+]
+sentry_telemetry = [
+	"dep:sentry",
+	"dep:sentry-tracing",
+	"dep:sentry-tower",
+]
+zstd_compression = [
+	"tower-http/compression-zstd",
+]
+gzip_compression = [
+	"tower-http/compression-gzip",
+]
+brotli_compression = [
+	"tower-http/compression-br",
+]
+systemd = [
+	"dep:sd-notify",
+]
+axum_dual_protocol = [
+	"dep:axum-server-dual-protocol"
+]
+
+[dependencies]
+axum-server-dual-protocol.optional = true
+axum-server-dual-protocol.workspace = true
+axum-server.workspace = true
+axum.workspace = true
+conduit-admin.workspace = true
+conduit-api.workspace = true
+conduit-core.workspace = true
+conduit-database.workspace = true
+conduit-service.workspace = true
+log.workspace = true
+tokio.workspace = true
+tower.workspace = true
+tracing.workspace = true
+bytes.workspace = true
+clap.workspace = true
+http-body-util.workspace = true
+http.workspace = true
+regex.workspace = true
+ruma.workspace = true
+sentry.optional = true
+sentry-tower.optional = true
+sentry-tower.workspace = true
+sentry-tracing.optional = true
+sentry-tracing.workspace = true
+sentry.workspace = true
+serde_json.workspace = true
+tower-http.workspace = true
+
+[target.'cfg(unix)'.dependencies]
+sd-notify.workspace = true
+sd-notify.optional = true
+
+[lints]
+workspace = true

src/router/layers.rs

@@ -0,0 +1,190 @@
+use std::{any::Any, io, sync::Arc, time::Duration};
+
+use axum::{
+	extract::{DefaultBodyLimit, MatchedPath},
+	Router,
+};
+use conduit::Server;
+use http::{
+	header::{self, HeaderName},
+	HeaderValue, Method, StatusCode,
+};
+use tower::ServiceBuilder;
+use tower_http::{
+	catch_panic::CatchPanicLayer,
+	cors::{self, CorsLayer},
+	set_header::SetResponseHeaderLayer,
+	trace::{DefaultOnFailure, DefaultOnRequest, DefaultOnResponse, TraceLayer},
+	ServiceBuilderExt as _,
+};
+use tracing::Level;
+
+use crate::{request, router};
+
+pub(crate) fn build(server: &Arc<Server>) -> io::Result<axum::routing::IntoMakeService<Router>> {
+	let layers = ServiceBuilder::new();
+
+	#[cfg(feature = "sentry_telemetry")]
+	let layers = layers.layer(sentry_tower::NewSentryLayer::<http::Request<_>>::new_from_top());
+
+	#[cfg(any(feature = "zstd_compression", feature = "gzip_compression", feature = "brotli_compression"))]
+	let layers = layers.layer(compression_layer(server));
+
+	let layers = layers
+		.sensitive_headers([header::AUTHORIZATION])
+		.sensitive_request_headers([HeaderName::from_static("x-forwarded-for")].into())
+		.layer(axum::middleware::from_fn_with_state(Arc::clone(server), request::spawn))
+		.layer(
+			TraceLayer::new_for_http()
+				.make_span_with(tracing_span::<_>)
+				.on_failure(DefaultOnFailure::new().level(Level::ERROR))
+				.on_request(DefaultOnRequest::new().level(Level::TRACE))
+				.on_response(DefaultOnResponse::new().level(Level::DEBUG)),
+		)
+		.layer(axum::middleware::from_fn_with_state(Arc::clone(server), request::handle))
+		.layer(SetResponseHeaderLayer::if_not_present(
+			HeaderName::from_static("origin-agent-cluster"), // https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Origin-Agent-Cluster
+			HeaderValue::from_static("?1"),
+		))
+		.layer(SetResponseHeaderLayer::if_not_present(
+			header::X_CONTENT_TYPE_OPTIONS,
+			HeaderValue::from_static("nosniff"),
+		))
+		.layer(SetResponseHeaderLayer::if_not_present(
+			header::X_XSS_PROTECTION,
+			HeaderValue::from_static("0"),
+		))
+		.layer(SetResponseHeaderLayer::if_not_present(
+			header::X_FRAME_OPTIONS,
+			HeaderValue::from_static("DENY"),
+		))
+		.layer(SetResponseHeaderLayer::if_not_present(
+			HeaderName::from_static("permissions-policy"),
+			HeaderValue::from_static("interest-cohort=(),browsing-topics=()"),
+		))
+		.layer(SetResponseHeaderLayer::if_not_present(
+			header::CONTENT_SECURITY_POLICY,
+			HeaderValue::from_static(
+				"sandbox; default-src 'none'; font-src 'none'; script-src 'none'; plugin-types application/pdf; \
+				 style-src 'unsafe-inline'; object-src 'self'; frame-ancesors 'none';",
+			),
+		))
+		.layer(cors_layer(server))
+		.layer(body_limit_layer(server))
+		.layer(CatchPanicLayer::custom(catch_panic));
+
+	let routes = router::build(server);
+	let layers = routes.layer(layers);
+
+	Ok(layers.into_make_service())
+}
+
+#[cfg(any(feature = "zstd_compression", feature = "gzip_compression", feature = "brotli_compression"))]
+fn compression_layer(server: &Server) -> tower_http::compression::CompressionLayer {
+	let mut compression_layer = tower_http::compression::CompressionLayer::new();
+
+	#[cfg(feature = "zstd_compression")]
+	{
+		if server.config.zstd_compression {
+			compression_layer = compression_layer.zstd(true);
+		} else {
+			compression_layer = compression_layer.no_zstd();
+		};
+	};
+
+	#[cfg(feature = "gzip_compression")]
+	{
+		if server.config.gzip_compression {
+			compression_layer = compression_layer.gzip(true);
+		} else {
+			compression_layer = compression_layer.no_gzip();
+		};
+	};
+
+	#[cfg(feature = "brotli_compression")]
+	{
+		if server.config.brotli_compression {
+			compression_layer = compression_layer.br(true);
+		} else {
+			compression_layer = compression_layer.no_br();
+		};
+	};
+
+	compression_layer
+}
+
+fn cors_layer(_server: &Server) -> CorsLayer {
+	const METHODS: [Method; 7] = [
+		Method::GET,
+		Method::HEAD,
+		Method::PATCH,
+		Method::POST,
+		Method::PUT,
+		Method::DELETE,
+		Method::OPTIONS,
+	];
+
+	let headers: [HeaderName; 5] = [
+		header::ORIGIN,
+		HeaderName::from_lowercase(b"x-requested-with").unwrap(),
+		header::CONTENT_TYPE,
+		header::ACCEPT,
+		header::AUTHORIZATION,
+	];
+
+	CorsLayer::new()
+		.allow_origin(cors::Any)
+		.allow_methods(METHODS)
+		.allow_headers(headers)
+		.max_age(Duration::from_secs(86400))
+}
+
+fn body_limit_layer(server: &Server) -> DefaultBodyLimit {
+	DefaultBodyLimit::max(
+		server
+			.config
+			.max_request_size
+			.try_into()
+			.expect("failed to convert max request size"),
+	)
+}
+
+#[allow(clippy::needless_pass_by_value)]
+#[tracing::instrument(skip_all)]
+fn catch_panic(err: Box<dyn Any + Send + 'static>) -> http::Response<http_body_util::Full<bytes::Bytes>> {
+	conduit_service::services()
+		.server
+		.requests_panic
+		.fetch_add(1, std::sync::atomic::Ordering::Release);
+
+	let details = if let Some(s) = err.downcast_ref::<String>() {
+		s.clone()
+	} else if let Some(s) = err.downcast_ref::<&str>() {
+		s.to_string()
+	} else {
+		"Unknown internal server error occurred.".to_owned()
+	};
+
+	let body = serde_json::json!({
+		"errcode": "M_UNKNOWN",
+		"error": "M_UNKNOWN: Internal server error occurred",
+		"details": details,
+	})
+	.to_string();
+
+	http::Response::builder()
+		.status(StatusCode::INTERNAL_SERVER_ERROR)
+		.header(header::CONTENT_TYPE, "application/json")
+		.body(http_body_util::Full::from(body))
+		.expect("Failed to create response for our panic catcher?")
+}
+
+fn tracing_span<T>(request: &http::Request<T>) -> tracing::Span {
+	let path = if let Some(path) = request.extensions().get::<MatchedPath>() {
+		path.as_str()
+	} else {
+		request.uri().path()
+	};
+
+	tracing::info_span!("router:", %path)
+}