1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
|
package apiv1
import (
"net/http"
"strconv"
"strings"
"time"
"github.com/gin-gonic/gin"
"github.com/iotbzh/xds-server/lib/common"
)
// ExecArgs JSON parameters of /exec command
type ExecArgs struct {
ID string `json:"id" binding:"required"`
SdkID string `json:"sdkid"` // sdk ID to use for setting env
Cmd string `json:"cmd" binding:"required"`
Args []string `json:"args"`
Env []string `json:"env"`
RPath string `json:"rpath"` // relative path into project
ExitImmediate bool `json:"exitImmediate"` // when true, exit event sent immediately when command exited (IOW, don't wait file synchronization)
CmdTimeout int `json:"timeout"` // command completion timeout in Second
}
// ExecOutMsg Message send on each output (stdout+stderr) of executed command
type ExecOutMsg struct {
CmdID string `json:"cmdID"`
Timestamp string `json:"timestamp"`
Stdout string `json:"stdout"`
Stderr string `json:"stderr"`
}
// ExecExitMsg Message send when executed command exited
type ExecExitMsg struct {
CmdID string `json:"cmdID"`
Timestamp string `json:"timestamp"`
Code int `json:"code"`
Error error `json:"error"`
}
// ExecOutEvent Event send in WS when characters are received
const ExecOutEvent = "exec:output"
// ExecExitEvent Event send in WS when program exited
const ExecExitEvent = "exec:exit"
var execCommandID = 1
// ExecCmd executes remotely a command
func (s *APIService) execCmd(c *gin.Context) {
var args ExecArgs
if c.BindJSON(&args) != nil {
common.APIError(c, "Invalid arguments")
return
}
// TODO: add permission ?
// Retrieve session info
sess := s.sessions.Get(c)
if sess == nil {
common.APIError(c, "Unknown sessions")
return
}
sop := sess.IOSocket
if sop == nil {
common.APIError(c, "Websocket not established")
return
}
// Allow to pass id in url (/exec/:id) or as JSON argument
id := c.Param("id")
if id == "" {
id = args.ID
}
if id == "" {
common.APIError(c, "Invalid id")
return
}
prj := s.mfolder.GetFolderFromID(id)
if prj == nil {
common.APIError(c, "Unknown id")
return
}
execTmo := args.CmdTimeout
if execTmo == 0 {
// TODO get default timeout from config.json file
execTmo = 24 * 60 * 60 // 1 day
}
// Define callback for output
var oCB common.EmitOutputCB
oCB = func(sid string, id int, stdout, stderr string, data *map[string]interface{}) {
// IO socket can be nil when disconnected
so := s.sessions.IOSocketGet(sid)
if so == nil {
s.log.Infof("%s not emitted: WS closed - sid: %s - msg id:%d", ExecOutEvent, sid, id)
return
}
// Retrieve project ID and RootPath
prjID := (*data)["ID"].(string)
prjRootPath := (*data)["RootPath"].(string)
// Cleanup any references to internal rootpath in stdout & stderr
stdout = strings.Replace(stdout, prjRootPath, "", -1)
stderr = strings.Replace(stderr, prjRootPath, "", -1)
s.log.Debugf("%s emitted - WS sid %s - id:%d - prjID:%s", ExecOutEvent, sid, id, prjID)
// FIXME replace by .BroadcastTo a room
err := (*so).Emit(ExecOutEvent, ExecOutMsg{
CmdID: strconv.Itoa(id),
Timestamp: time.Now().String(),
Stdout: stdout,
Stderr: stderr,
})
if err != nil {
s.log.Errorf("WS Emit : %v", err)
}
}
// Define callback for output
eCB := func(sid string, id int, code int, err error, data *map[string]interface{}) {
s.log.Debugf("Command [Cmd ID %d] exited: code %d, error: %v", id, code, err)
// IO socket can be nil when disconnected
so := s.sessions.IOSocketGet(sid)
if so == nil {
s.log.Infof("%s not emitted - WS closed (id:%d", ExecExitEvent, id)
return
}
// Retrieve project ID and RootPath
prjID := (*data)["ID"].(string)
exitImm := (*data)["ExitImmediate"].(bool)
// XXX - workaround to be sure that Syncthing detected all changes
if err := s.mfolder.ForceSync(prjID); err != nil {
s.log.Errorf("Error while syncing folder %s: %v", prjID, err)
}
if !exitImm {
// Wait end of file sync
// FIXME pass as argument
tmo := 60
for t := tmo; t > 0; t-- {
s.log.Debugf("Wait file insync for %s (%d/%d)", prjID, t, tmo)
if sync, err := s.mfolder.IsFolderInSync(prjID); sync || err != nil {
if err != nil {
s.log.Errorf("ERROR IsFolderInSync (%s): %v", prjID, err)
}
break
}
time.Sleep(time.Second)
}
}
// FIXME replace by .BroadcastTo a room
e := (*so).Emit(ExecExitEvent, ExecExitMsg{
CmdID: strconv.Itoa(id),
Timestamp: time.Now().String(),
Code: code,
Error: err,
})
if e != nil {
s.log.Errorf("WS Emit : %v", e)
}
}
cmdID := execCommandID
execCommandID++
cmd := []string{}
// Setup env var regarding Sdk ID (used for example to setup cross toolchain)
if envCmd := s.sdks.GetEnvCmd(args.SdkID, prj.DefaultSdk); len(envCmd) > 0 {
cmd = append(cmd, envCmd...)
cmd = append(cmd, "&&")
}
cmd = append(cmd, "cd", prj.GetFullPath(args.RPath), "&&", args.Cmd)
if len(args.Args) > 0 {
cmd = append(cmd, args.Args...)
}
s.log.Debugf("Execute [Cmd ID %d]: %v", cmdID, cmd)
data := make(map[string]interface{})
data["ID"] = prj.ID
data["RootPath"] = prj.RootPath
data["ExitImmediate"] = args.ExitImmediate
err := common.ExecPipeWs(cmd, args.Env, sop, sess.ID, cmdID, execTmo, s.log, oCB, eCB, &data)
if err != nil {
common.APIError(c, err.Error())
return
}
c.JSON(http.StatusOK,
gin.H{
"status": "OK",
"cmdID": cmdID,
})
}
|
