mirror of https://github.com/hashicorp/consul
220 lines
6.7 KiB
Go
220 lines
6.7 KiB
Go
package agent
|
|
|
|
import (
|
|
"fmt"
|
|
"net/http"
|
|
"strings"
|
|
"time"
|
|
|
|
"github.com/hashicorp/consul/agent/structs"
|
|
"github.com/hashicorp/consul/lib"
|
|
"github.com/hashicorp/consul/types"
|
|
)
|
|
|
|
// sessionCreateResponse is used to wrap the session ID
|
|
type sessionCreateResponse struct {
|
|
ID string
|
|
}
|
|
|
|
// SessionCreate is used to create a new session
|
|
func (s *HTTPHandlers) SessionCreate(resp http.ResponseWriter, req *http.Request) (interface{}, error) {
|
|
// Default the session to our node + serf check + release session
|
|
// invalidate behavior.
|
|
args := structs.SessionRequest{
|
|
Op: structs.SessionCreate,
|
|
Session: structs.Session{
|
|
Node: s.agent.config.NodeName,
|
|
NodeChecks: []string{string(structs.SerfCheckID)},
|
|
Checks: []types.CheckID{structs.SerfCheckID},
|
|
LockDelay: 15 * time.Second,
|
|
Behavior: structs.SessionKeysRelease,
|
|
TTL: "",
|
|
},
|
|
}
|
|
s.parseDC(req, &args.Datacenter)
|
|
s.parseToken(req, &args.Token)
|
|
|
|
if err := s.parseEntMetaNoWildcard(req, &args.Session.EnterpriseMeta); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
// Handle optional request body
|
|
if req.ContentLength > 0 {
|
|
if err := s.rewordUnknownEnterpriseFieldError(lib.DecodeJSON(req.Body, &args.Session)); err != nil {
|
|
return nil, HTTPError{StatusCode: http.StatusBadRequest, Reason: fmt.Sprintf("Request decode failed: %v", err)}
|
|
}
|
|
}
|
|
|
|
fixupEmptySessionChecks(&args.Session)
|
|
|
|
if (s.agent.config.Datacenter != args.Datacenter) && (!s.agent.config.ServerMode) {
|
|
return nil, fmt.Errorf("cross datacenter lock must be created at server agent")
|
|
}
|
|
|
|
// 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
|
|
return sessionCreateResponse{out}, nil
|
|
}
|
|
|
|
// SessionDestroy is used to destroy an existing session
|
|
func (s *HTTPHandlers) SessionDestroy(resp http.ResponseWriter, req *http.Request) (interface{}, error) {
|
|
args := structs.SessionRequest{
|
|
Op: structs.SessionDestroy,
|
|
}
|
|
s.parseDC(req, &args.Datacenter)
|
|
s.parseToken(req, &args.Token)
|
|
|
|
if err := s.parseEntMetaNoWildcard(req, &args.Session.EnterpriseMeta); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
// Pull out the session id
|
|
args.Session.ID = strings.TrimPrefix(req.URL.Path, "/v1/session/destroy/")
|
|
if args.Session.ID == "" {
|
|
return nil, HTTPError{StatusCode: http.StatusBadRequest, Reason: "Missing session"}
|
|
}
|
|
|
|
var out string
|
|
if err := s.agent.RPC("Session.Apply", &args, &out); err != nil {
|
|
return nil, err
|
|
}
|
|
return true, nil
|
|
}
|
|
|
|
// SessionRenew is used to renew the TTL on an existing TTL session
|
|
func (s *HTTPHandlers) SessionRenew(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
|
|
}
|
|
if err := s.parseEntMetaNoWildcard(req, &args.EnterpriseMeta); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
// Pull out the session id
|
|
args.SessionID = strings.TrimPrefix(req.URL.Path, "/v1/session/renew/")
|
|
args.Session = args.SessionID
|
|
if args.SessionID == "" {
|
|
return nil, HTTPError{StatusCode: http.StatusBadRequest, Reason: "Missing session"}
|
|
}
|
|
|
|
var out structs.IndexedSessions
|
|
if err := s.agent.RPC("Session.Renew", &args, &out); err != nil {
|
|
return nil, err
|
|
} else if out.Sessions == nil {
|
|
return nil, HTTPError{StatusCode: http.StatusNotFound, Reason: fmt.Sprintf("Session id '%s' not found", args.SessionID)}
|
|
}
|
|
|
|
return out.Sessions, nil
|
|
}
|
|
|
|
// SessionGet is used to get info for a particular session
|
|
func (s *HTTPHandlers) 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
|
|
}
|
|
if err := s.parseEntMetaNoWildcard(req, &args.EnterpriseMeta); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
// Pull out the session id
|
|
args.SessionID = strings.TrimPrefix(req.URL.Path, "/v1/session/info/")
|
|
args.Session = args.SessionID
|
|
if args.SessionID == "" {
|
|
return nil, HTTPError{StatusCode: http.StatusBadRequest, Reason: "Missing session"}
|
|
}
|
|
|
|
var out structs.IndexedSessions
|
|
defer setMeta(resp, &out.QueryMeta)
|
|
if err := s.agent.RPC("Session.Get", &args, &out); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
// Use empty list instead of nil
|
|
if out.Sessions == nil {
|
|
out.Sessions = make(structs.Sessions, 0)
|
|
}
|
|
return out.Sessions, nil
|
|
}
|
|
|
|
// SessionList is used to list all the sessions
|
|
func (s *HTTPHandlers) SessionList(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
|
|
}
|
|
if err := s.parseEntMeta(req, &args.EnterpriseMeta); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
var out structs.IndexedSessions
|
|
defer setMeta(resp, &out.QueryMeta)
|
|
if err := s.agent.RPC("Session.List", &args, &out); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
// Use empty list instead of nil
|
|
if out.Sessions == nil {
|
|
out.Sessions = make(structs.Sessions, 0)
|
|
}
|
|
return out.Sessions, nil
|
|
}
|
|
|
|
// SessionsForNode returns all the nodes belonging to a node
|
|
func (s *HTTPHandlers) 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
|
|
}
|
|
if err := s.parseEntMeta(req, &args.EnterpriseMeta); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
// Pull out the node name
|
|
args.Node = strings.TrimPrefix(req.URL.Path, "/v1/session/node/")
|
|
if args.Node == "" {
|
|
return nil, HTTPError{StatusCode: http.StatusBadRequest, Reason: "Missing node name"}
|
|
}
|
|
|
|
var out structs.IndexedSessions
|
|
defer setMeta(resp, &out.QueryMeta)
|
|
if err := s.agent.RPC("Session.NodeSessions", &args, &out); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
// Use empty list instead of nil
|
|
if out.Sessions == nil {
|
|
out.Sessions = make(structs.Sessions, 0)
|
|
}
|
|
return out.Sessions, nil
|
|
}
|
|
|
|
// This is for backwards compatibility. Prior to 1.7.0 users could create a session with no Checks
|
|
// by passing an empty Checks field. Now the preferred field is session.NodeChecks.
|
|
func fixupEmptySessionChecks(session *structs.Session) {
|
|
// If the Checks field contains an empty slice, empty out the default check that was provided to NodeChecks
|
|
if len(session.Checks) == 0 {
|
|
session.NodeChecks = make([]string, 0)
|
|
return
|
|
}
|
|
|
|
// If the checks field contains the default value, empty it out. Defer to what is in NodeChecks.
|
|
if len(session.Checks) == 1 && session.Checks[0] == structs.SerfCheckID {
|
|
session.Checks = nil
|
|
return
|
|
}
|
|
|
|
// If the NodeChecks field contains an empty slice, empty out the default check that was provided to Checks
|
|
if len(session.NodeChecks) == 0 {
|
|
session.Checks = nil
|
|
return
|
|
}
|
|
return
|
|
}
|