package agent import ( "bytes" "encoding/base64" "fmt" "net/http" "net/http/httptest" "strings" "testing" "time" "github.com/hashicorp/consul/agent/structs" "github.com/hashicorp/consul/api" "github.com/hashicorp/consul/testrpc" "github.com/hashicorp/raft" "github.com/stretchr/testify/assert" ) func TestTxnEndpoint_Bad_JSON(t *testing.T) { if testing.Short() { t.Skip("too slow for testing.Short") } t.Parallel() a := NewTestAgent(t, "") defer a.Shutdown() buf := bytes.NewBuffer([]byte("{")) req, _ := http.NewRequest("PUT", "/v1/txn", buf) resp := httptest.NewRecorder() if _, err := a.srv.Txn(resp, req); err != nil { t.Fatalf("err: %v", err) } if resp.Code != 400 { t.Fatalf("expected 400, got %d", resp.Code) } if !bytes.Contains(resp.Body.Bytes(), []byte("Failed to parse")) { t.Fatalf("expected conflicting args error") } } func TestTxnEndpoint_Bad_Size_Item(t *testing.T) { if testing.Short() { t.Skip("too slow for testing.Short") } t.Parallel() testIt := func(t *testing.T, agent *TestAgent, wantPass bool) { value := strings.Repeat("X", 3*raft.SuggestedMaxDataSize) value = base64.StdEncoding.EncodeToString([]byte(value)) buf := bytes.NewBuffer([]byte(fmt.Sprintf(` [ { "KV": { "Verb": "set", "Key": "key", "Value": %q } } ] `, value))) req, _ := http.NewRequest("PUT", "/v1/txn", buf) resp := httptest.NewRecorder() if _, err := agent.srv.Txn(resp, req); err != nil { t.Fatalf("err: %v", err) } if resp.Code != 413 && !wantPass { t.Fatalf("expected 413, got %d", resp.Code) } if resp.Code != 200 && wantPass { t.Fatalf("expected 200, got %d", resp.Code) } } t.Run("exceeds default limits", func(t *testing.T) { a := NewTestAgent(t, "") testIt(t, a, false) a.Shutdown() }) t.Run("exceeds configured max txn len", func(t *testing.T) { a := NewTestAgent(t, "limits = { txn_max_req_len = 700000 }") testIt(t, a, false) a.Shutdown() }) t.Run("exceeds default max kv value size", func(t *testing.T) { a := NewTestAgent(t, "limits = { txn_max_req_len = 123456789 }") testIt(t, a, false) a.Shutdown() }) t.Run("allowed", func(t *testing.T) { a := NewTestAgent(t, ` limits = { txn_max_req_len = 123456789 kv_max_value_size = 123456789 }`) testIt(t, a, true) a.Shutdown() }) } func TestTxnEndpoint_Bad_Size_Net(t *testing.T) { if testing.Short() { t.Skip("too slow for testing.Short") } t.Parallel() testIt := func(agent *TestAgent, wantPass bool) { value := strings.Repeat("X", 3*raft.SuggestedMaxDataSize) value = base64.StdEncoding.EncodeToString([]byte(value)) buf := bytes.NewBuffer([]byte(fmt.Sprintf(` [ { "KV": { "Verb": "set", "Key": "key1", "Value": %q } }, { "KV": { "Verb": "set", "Key": "key1", "Value": %q } }, { "KV": { "Verb": "set", "Key": "key1", "Value": %q } } ] `, value, value, value))) req, _ := http.NewRequest("PUT", "/v1/txn", buf) resp := httptest.NewRecorder() if _, err := agent.srv.Txn(resp, req); err != nil { t.Fatalf("err: %v", err) } if resp.Code != 413 && !wantPass { t.Fatalf("expected 413, got %d", resp.Code) } if resp.Code != 200 && wantPass { t.Fatalf("expected 200, got %d", resp.Code) } } t.Run("exceeds default limits", func(t *testing.T) { a := NewTestAgent(t, "") testIt(a, false) a.Shutdown() }) t.Run("exceeds configured max txn len", func(t *testing.T) { a := NewTestAgent(t, "limits = { txn_max_req_len = 700000 }") testIt(a, false) a.Shutdown() }) t.Run("exceeds default max kv value size", func(t *testing.T) { a := NewTestAgent(t, "limits = { txn_max_req_len = 123456789 }") testIt(a, false) a.Shutdown() }) t.Run("allowed", func(t *testing.T) { a := NewTestAgent(t, ` limits = { txn_max_req_len = 123456789 kv_max_value_size = 123456789 }`) testIt(a, true) a.Shutdown() }) t.Run("allowed kv max backward compatible", func(t *testing.T) { a := NewTestAgent(t, "limits = { kv_max_value_size = 123456789 }") testIt(a, true) a.Shutdown() }) } func TestTxnEndpoint_Bad_Size_Ops(t *testing.T) { if testing.Short() { t.Skip("too slow for testing.Short") } t.Parallel() a := NewTestAgent(t, "") defer a.Shutdown() buf := bytes.NewBuffer([]byte(fmt.Sprintf(` [ %s { "KV": { "Verb": "set", "Key": "key", "Value": "" } } ] `, strings.Repeat(`{ "KV": { "Verb": "get", "Key": "key" } },`, 2*maxTxnOps)))) req, _ := http.NewRequest("PUT", "/v1/txn", buf) resp := httptest.NewRecorder() if _, err := a.srv.Txn(resp, req); err != nil { t.Fatalf("err: %v", err) } if resp.Code != 413 { t.Fatalf("expected 413, got %d", resp.Code) } } func TestTxnEndpoint_KV_Actions(t *testing.T) { if testing.Short() { t.Skip("too slow for testing.Short") } t.Parallel() t.Run("", func(t *testing.T) { a := NewTestAgent(t, "") defer a.Shutdown() testrpc.WaitForTestAgent(t, a.RPC, "dc1") // Make sure all incoming fields get converted properly to the internal // RPC format. var index uint64 id := makeTestSession(t, a.srv) { buf := bytes.NewBuffer([]byte(fmt.Sprintf(` [ { "KV": { "Verb": "lock", "Key": "key", "Value": "aGVsbG8gd29ybGQ=", "Flags": 23, "Session": %q } }, { "KV": { "Verb": "get", "Key": "key" } } ] `, id))) req, _ := http.NewRequest("PUT", "/v1/txn", buf) resp := httptest.NewRecorder() obj, err := a.srv.Txn(resp, req) if err != nil { t.Fatalf("err: %v", err) } if resp.Code != 200 { t.Fatalf("expected 200, got %d", resp.Code) } txnResp, ok := obj.(structs.TxnResponse) if !ok { t.Fatalf("bad type: %T", obj) } if len(txnResp.Results) != 2 { t.Fatalf("bad: %v", txnResp) } index = txnResp.Results[0].KV.ModifyIndex entMeta := txnResp.Results[0].KV.EnterpriseMeta expected := structs.TxnResponse{ Results: structs.TxnResults{ &structs.TxnResult{ KV: &structs.DirEntry{ Key: "key", Value: nil, Flags: 23, Session: id, LockIndex: 1, RaftIndex: structs.RaftIndex{ CreateIndex: index, ModifyIndex: index, }, EnterpriseMeta: entMeta, }, }, &structs.TxnResult{ KV: &structs.DirEntry{ Key: "key", Value: []byte("hello world"), Flags: 23, Session: id, LockIndex: 1, RaftIndex: structs.RaftIndex{ CreateIndex: index, ModifyIndex: index, }, EnterpriseMeta: entMeta, }, }, }, } assert.Equal(t, expected, txnResp) } // Do a read-only transaction that should get routed to the // fast-path endpoint. { buf := bytes.NewBuffer([]byte(` [ { "KV": { "Verb": "get", "Key": "key" } }, { "KV": { "Verb": "get-tree", "Key": "key" } } ] `)) req, _ := http.NewRequest("PUT", "/v1/txn", buf) resp := httptest.NewRecorder() obj, err := a.srv.Txn(resp, req) if err != nil { t.Fatalf("err: %v", err) } if resp.Code != 200 { t.Fatalf("expected 200, got %d", resp.Code) } header := resp.Header().Get("X-Consul-KnownLeader") if header != "true" { t.Fatalf("bad: %v", header) } header = resp.Header().Get("X-Consul-LastContact") if header != "0" { t.Fatalf("bad: %v", header) } txnResp, ok := obj.(structs.TxnReadResponse) if !ok { t.Fatalf("bad type: %T", obj) } entMeta := txnResp.Results[0].KV.EnterpriseMeta expected := structs.TxnReadResponse{ TxnResponse: structs.TxnResponse{ Results: structs.TxnResults{ &structs.TxnResult{ KV: &structs.DirEntry{ Key: "key", Value: []byte("hello world"), Flags: 23, Session: id, LockIndex: 1, RaftIndex: structs.RaftIndex{ CreateIndex: index, ModifyIndex: index, }, EnterpriseMeta: entMeta, }, }, &structs.TxnResult{ KV: &structs.DirEntry{ Key: "key", Value: []byte("hello world"), Flags: 23, Session: id, LockIndex: 1, RaftIndex: structs.RaftIndex{ CreateIndex: index, ModifyIndex: index, }, EnterpriseMeta: entMeta, }, }, }, }, QueryMeta: structs.QueryMeta{ KnownLeader: true, }, } assert.Equal(t, expected, txnResp) } // Now that we have an index we can do a CAS to make sure the // index field gets translated to the RPC format. { buf := bytes.NewBuffer([]byte(fmt.Sprintf(` [ { "KV": { "Verb": "cas", "Key": "key", "Value": "Z29vZGJ5ZSB3b3JsZA==", "Index": %d } }, { "KV": { "Verb": "get", "Key": "key" } } ] `, index))) req, _ := http.NewRequest("PUT", "/v1/txn", buf) resp := httptest.NewRecorder() obj, err := a.srv.Txn(resp, req) if err != nil { t.Fatalf("err: %v", err) } if resp.Code != 200 { t.Fatalf("expected 200, got %d", resp.Code) } txnResp, ok := obj.(structs.TxnResponse) if !ok { t.Fatalf("bad type: %T", obj) } if len(txnResp.Results) != 2 { t.Fatalf("bad: %v", txnResp) } modIndex := txnResp.Results[0].KV.ModifyIndex entMeta := txnResp.Results[0].KV.EnterpriseMeta expected := structs.TxnResponse{ Results: structs.TxnResults{ &structs.TxnResult{ KV: &structs.DirEntry{ Key: "key", Value: nil, Session: id, RaftIndex: structs.RaftIndex{ CreateIndex: index, ModifyIndex: modIndex, }, EnterpriseMeta: entMeta, }, }, &structs.TxnResult{ KV: &structs.DirEntry{ Key: "key", Value: []byte("goodbye world"), Session: id, RaftIndex: structs.RaftIndex{ CreateIndex: index, ModifyIndex: modIndex, }, EnterpriseMeta: entMeta, }, }, }, } assert.Equal(t, expected, txnResp) } }) // Verify an error inside a transaction. t.Run("", func(t *testing.T) { a := NewTestAgent(t, "") defer a.Shutdown() buf := bytes.NewBuffer([]byte(` [ { "KV": { "Verb": "lock", "Key": "key", "Value": "aGVsbG8gd29ybGQ=", "Session": "nope" } }, { "KV": { "Verb": "get", "Key": "key" } } ] `)) req, _ := http.NewRequest("PUT", "/v1/txn", buf) resp := httptest.NewRecorder() if _, err := a.srv.Txn(resp, req); err != nil { t.Fatalf("err: %v", err) } if resp.Code != 409 { t.Fatalf("expected 409, got %d", resp.Code) } if !bytes.Contains(resp.Body.Bytes(), []byte("failed session lookup")) { t.Fatalf("bad: %s", resp.Body.String()) } }) } func TestTxnEndpoint_UpdateCheck(t *testing.T) { if testing.Short() { t.Skip("too slow for testing.Short") } t.Parallel() a := NewTestAgent(t, "") defer a.Shutdown() testrpc.WaitForTestAgent(t, a.RPC, "dc1") // Make sure the fields of a check are handled correctly when both creating and // updating, and test both sets of duration fields to ensure backwards compatibility. buf := bytes.NewBuffer([]byte(fmt.Sprintf(` [ { "Check": { "Verb": "set", "Check": { "Node": "%s", "CheckID": "nodecheck", "Name": "Node http check", "Status": "critical", "Notes": "Http based health check", "Output": "", "ServiceID": "", "ServiceName": "", "Definition": { "Interval": "6s", "Timeout": "6s", "DeregisterCriticalServiceAfter": "6s", "HTTP": "http://localhost:8000", "TLSSkipVerify": true } } } }, { "Check": { "Verb": "set", "Check": { "Node": "%s", "CheckID": "nodecheck", "Name": "Node http check", "Status": "passing", "Notes": "Http based health check", "Output": "success", "ServiceID": "", "ServiceName": "", "Definition": { "Interval": "10s", "Timeout": "10s", "DeregisterCriticalServiceAfter": "15m", "HTTP": "http://localhost:9000", "TLSSkipVerify": false } } } }, { "Check": { "Verb": "set", "Check": { "Node": "%s", "CheckID": "nodecheck", "Name": "Node http check", "Status": "passing", "Notes": "Http based health check", "Output": "success", "ServiceID": "", "ServiceName": "", "Definition": { "IntervalDuration": "15s", "TimeoutDuration": "15s", "DeregisterCriticalServiceAfterDuration": "30m", "HTTP": "http://localhost:9000", "TLSSkipVerify": false } } } } ] `, a.config.NodeName, a.config.NodeName, a.config.NodeName))) req, _ := http.NewRequest("PUT", "/v1/txn", buf) resp := httptest.NewRecorder() obj, err := a.srv.Txn(resp, req) if err != nil { t.Fatalf("err: %v", err) } if resp.Code != 200 { t.Fatalf("expected 200, got %d", resp.Code) } txnResp, ok := obj.(structs.TxnResponse) if !ok { t.Fatalf("bad type: %T", obj) } if len(txnResp.Results) != 3 { t.Fatalf("bad: %v", txnResp) } index := txnResp.Results[0].Check.ModifyIndex expected := structs.TxnResponse{ Results: structs.TxnResults{ &structs.TxnResult{ Check: &structs.HealthCheck{ Node: a.config.NodeName, CheckID: "nodecheck", Name: "Node http check", Status: api.HealthCritical, Notes: "Http based health check", Definition: structs.HealthCheckDefinition{ Interval: 6 * time.Second, Timeout: 6 * time.Second, DeregisterCriticalServiceAfter: 6 * time.Second, HTTP: "http://localhost:8000", TLSSkipVerify: true, }, RaftIndex: structs.RaftIndex{ CreateIndex: index, ModifyIndex: index, }, EnterpriseMeta: *structs.DefaultEnterpriseMeta(), }, }, &structs.TxnResult{ Check: &structs.HealthCheck{ Node: a.config.NodeName, CheckID: "nodecheck", Name: "Node http check", Status: api.HealthPassing, Notes: "Http based health check", Output: "success", Definition: structs.HealthCheckDefinition{ Interval: 10 * time.Second, Timeout: 10 * time.Second, DeregisterCriticalServiceAfter: 15 * time.Minute, HTTP: "http://localhost:9000", TLSSkipVerify: false, }, RaftIndex: structs.RaftIndex{ CreateIndex: index, ModifyIndex: index, }, EnterpriseMeta: *structs.DefaultEnterpriseMeta(), }, }, &structs.TxnResult{ Check: &structs.HealthCheck{ Node: a.config.NodeName, CheckID: "nodecheck", Name: "Node http check", Status: api.HealthPassing, Notes: "Http based health check", Output: "success", Definition: structs.HealthCheckDefinition{ Interval: 15 * time.Second, Timeout: 15 * time.Second, DeregisterCriticalServiceAfter: 30 * time.Minute, HTTP: "http://localhost:9000", TLSSkipVerify: false, }, RaftIndex: structs.RaftIndex{ CreateIndex: index, ModifyIndex: index, }, EnterpriseMeta: *structs.DefaultEnterpriseMeta(), }, }, }, } assert.Equal(t, expected, txnResp) }