open-consul/command/agent/session_endpoint.go

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2014-05-16 22:49:17 +00:00
package agent
import (
"fmt"
"github.com/hashicorp/consul/consul"
"github.com/hashicorp/consul/consul/structs"
"net/http"
"strings"
)
// SessionCreate is used to create a new session
func (s *HTTPServer) SessionCreate(resp http.ResponseWriter, req *http.Request) (interface{}, error) {
// Default the session to our node + serf check
args := structs.SessionRequest{
Op: structs.SessionCreate,
Session: structs.Session{
Node: s.agent.config.NodeName,
Checks: []string{consul.SerfCheckID},
},
}
s.parseDC(req, &args.Datacenter)
// Handle optional request body
if req.ContentLength > 0 {
if err := decodeBody(req, &args.Session, nil); err != nil {
resp.WriteHeader(400)
resp.Write([]byte(fmt.Sprintf("Request decode failed: %v", err)))
return nil, nil
}
}
// Create the session, get the ID
var out string
if err := s.agent.RPC("Session.Apply", &args, &out); err != nil {
return nil, err
}
// Format the response as a JSON object
type response struct {
ID string
}
return response{out}, nil
}
// SessionDestroy is used to destroy an existing session
func (s *HTTPServer) SessionDestroy(resp http.ResponseWriter, req *http.Request) (interface{}, error) {
args := structs.SessionRequest{
Op: structs.SessionDestroy,
}
s.parseDC(req, &args.Datacenter)
// Pull out the session id
args.Session.ID = strings.TrimPrefix(req.URL.Path, "/v1/session/destroy/")
if args.Session.ID == "" {
resp.WriteHeader(400)
resp.Write([]byte("Missing session"))
return nil, nil
}
var out string
if err := s.agent.RPC("Session.Apply", &args, &out); err != nil {
return nil, err
}
return true, nil
}
// SessionGet is used to get info for a particular session
func (s *HTTPServer) SessionGet(resp http.ResponseWriter, req *http.Request) (interface{}, error) {
args := structs.SessionSpecificRequest{}
if done := s.parse(resp, req, &args.Datacenter, &args.QueryOptions); done {
return nil, nil
}
// Pull out the session id
args.Session = strings.TrimPrefix(req.URL.Path, "/v1/session/info/")
if args.Session == "" {
resp.WriteHeader(400)
resp.Write([]byte("Missing session"))
return nil, nil
}
var out structs.IndexedSessions
defer setMeta(resp, &out.QueryMeta)
if err := s.agent.RPC("Session.Get", &args, &out); err != nil {
return nil, err
}
return out.Sessions, nil
}
// SessionList is used to list all the sessions
func (s *HTTPServer) SessionList(resp http.ResponseWriter, req *http.Request) (interface{}, error) {
args := structs.DCSpecificRequest{}
if done := s.parse(resp, req, &args.Datacenter, &args.QueryOptions); done {
return nil, nil
}
var out structs.IndexedSessions
defer setMeta(resp, &out.QueryMeta)
if err := s.agent.RPC("Session.List", &args, &out); err != nil {
return nil, err
}
return out.Sessions, nil
}
// SessionsForNode returns all the nodes belonging to a node
func (s *HTTPServer) SessionsForNode(resp http.ResponseWriter, req *http.Request) (interface{}, error) {
args := structs.NodeSpecificRequest{}
if done := s.parse(resp, req, &args.Datacenter, &args.QueryOptions); done {
return nil, nil
}
// Pull out the node name
args.Node = strings.TrimPrefix(req.URL.Path, "/v1/session/node/")
if args.Node == "" {
resp.WriteHeader(400)
resp.Write([]byte("Missing node name"))
return nil, nil
}
var out structs.IndexedSessions
defer setMeta(resp, &out.QueryMeta)
if err := s.agent.RPC("Session.NodeSessions", &args, &out); err != nil {
return nil, err
}
return out.Sessions, nil
}