wide/output/outputs.go

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// Copyright (c) 2014, B3log
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
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// Build, run and go tool manipulations.
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package output
import (
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"bufio"
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"encoding/json"
"io"
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"io/ioutil"
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"math/rand"
"net/http"
"os"
"os/exec"
"path/filepath"
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"runtime"
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"strconv"
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"strings"
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"time"
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"github.com/b3log/wide/conf"
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"github.com/b3log/wide/i18n"
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"github.com/b3log/wide/session"
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"github.com/b3log/wide/util"
"github.com/golang/glog"
"github.com/gorilla/websocket"
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)
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const (
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lintSeverityError = "error" // lint severity: error
lintSeverityWarn = "warning" // lint severity: warning
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)
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// Code lint.
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type Lint struct {
File string `json:"file"`
LineNo int `json:"lineNo"`
Severity string `json:"severity"`
Msg string `json:"msg"`
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}
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// WSHandler handles request of creating output channel.
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func WSHandler(w http.ResponseWriter, r *http.Request) {
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sid := r.URL.Query()["sid"][0]
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conn, _ := websocket.Upgrade(w, r, nil, 1024, 1024)
wsChan := util.WSChannel{Sid: sid, Conn: conn, Request: r, Time: time.Now()}
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ret := map[string]interface{}{"output": "Ouput initialized", "cmd": "init-output"}
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err := wsChan.WriteJSON(&ret)
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if nil != err {
return
}
session.OutputWS[sid] = &wsChan
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glog.V(4).Infof("Open a new [Output] with session [%s], %d", sid, len(session.OutputWS))
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}
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// RunHandler handles request of executing a binary file.
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func RunHandler(w http.ResponseWriter, r *http.Request) {
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data := map[string]interface{}{"succ": true}
defer util.RetJSON(w, r, data)
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var args map[string]interface{}
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if err := json.NewDecoder(r.Body).Decode(&args); err != nil {
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glog.Error(err)
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data["succ"] = false
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}
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sid := args["sid"].(string)
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wSession := session.WideSessions.Get(sid)
if nil == wSession {
data["succ"] = false
}
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filePath := args["executable"].(string)
curDir := filepath.Dir(filePath)
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cmd := exec.Command(filePath)
cmd.Dir = curDir
stdout, err := cmd.StdoutPipe()
if nil != err {
glog.Error(err)
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data["succ"] = false
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}
stderr, err := cmd.StderrPipe()
if nil != err {
glog.Error(err)
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data["succ"] = false
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}
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//outReader := bufio.NewReader(stdout)
outReader := util.NewReader(stdout)
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errReader := bufio.NewReader(stderr)
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if err := cmd.Start(); nil != err {
glog.Error(err)
data["succ"] = false
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}
wsChannel := session.OutputWS[sid]
channelRet := map[string]interface{}{}
if !data["succ"].(bool) {
if nil != wsChannel {
channelRet["cmd"] = "run-done"
channelRet["output"] = ""
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err := wsChannel.WriteJSON(&channelRet)
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if nil != err {
glog.Error(err)
return
}
wsChannel.Refresh()
}
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return
}
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channelRet["pid"] = cmd.Process.Pid
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// add the process to user's process set
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processes.add(wSession, cmd.Process)
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go func(runningId int) {
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defer util.Recover()
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defer cmd.Wait()
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glog.V(5).Infof("Session [%s] is running [id=%d, file=%s]", sid, runningId, filePath)
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// push once for front-end to get the 'run' state and pid
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if nil != wsChannel {
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channelRet["cmd"] = "run"
channelRet["output"] = ""
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err := wsChannel.WriteJSON(&channelRet)
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if nil != err {
glog.Error(err)
return
}
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wsChannel.Refresh()
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}
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go func() {
for {
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buf, err := outReader.ReadData()
//buf, err := outReader.ReadString('\n')
buf = strings.Replace(buf, "<", "&lt;", -1)
buf = strings.Replace(buf, ">", "&gt;", -1)
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// TODO: fix the duplicated error
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if nil != err {
// remove the exited process from user process set
processes.remove(wSession, cmd.Process)
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glog.V(5).Infof("Session [%s] 's running [id=%d, file=%s] has done [stdout err]", sid, runningId, filePath)
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if nil != wsChannel {
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channelRet["cmd"] = "run-done"
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channelRet["output"] = buf
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err := wsChannel.WriteJSON(&channelRet)
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if nil != err {
glog.Error(err)
break
}
wsChannel.Refresh()
}
break
} else {
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if nil != wsChannel {
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channelRet["cmd"] = "run"
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channelRet["output"] = buf
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err := wsChannel.WriteJSON(&channelRet)
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if nil != err {
glog.Error(err)
break
}
wsChannel.Refresh()
}
}
}
}()
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for {
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buf, err := errReader.ReadString('\n')
buf = strings.Replace(buf, "<", "&lt;", -1)
buf = strings.Replace(buf, ">", "&gt;", -1)
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if nil != err {
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// remove the exited process from user process set
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processes.remove(wSession, cmd.Process)
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glog.V(5).Infof("Session [%s] 's running [id=%d, file=%s] has done [stderr err]", sid, runningId, filePath)
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if nil != session.OutputWS[sid] {
wsChannel := session.OutputWS[sid]
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channelRet["cmd"] = "run-done"
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channelRet["output"] = buf
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err := wsChannel.WriteJSON(&channelRet)
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if nil != err {
glog.Error(err)
break
}
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wsChannel.Refresh()
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}
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break
} else {
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if nil != session.OutputWS[sid] {
wsChannel := session.OutputWS[sid]
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channelRet["cmd"] = "run"
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channelRet["output"] = buf
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err := wsChannel.WriteJSON(&channelRet)
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if nil != err {
glog.Error(err)
break
}
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wsChannel.Refresh()
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}
}
}
}(rand.Int())
}
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// BuildHandler handles request of building.
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func BuildHandler(w http.ResponseWriter, r *http.Request) {
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data := map[string]interface{}{"succ": true}
defer util.RetJSON(w, r, data)
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httpSession, _ := session.HTTPSession.Get(r, "wide-session")
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username := httpSession.Values["username"].(string)
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locale := conf.Wide.GetUser(username).Locale
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var args map[string]interface{}
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if err := json.NewDecoder(r.Body).Decode(&args); err != nil {
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glog.Error(err)
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data["succ"] = false
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return
}
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sid := args["sid"].(string)
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filePath := args["file"].(string)
curDir := filepath.Dir(filePath)
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fout, err := os.Create(filePath)
if nil != err {
glog.Error(err)
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data["succ"] = false
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return
}
code := args["code"].(string)
fout.WriteString(code)
if err := fout.Close(); nil != err {
glog.Error(err)
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data["succ"] = false
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return
}
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suffix := ""
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if util.OS.IsWindows() {
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suffix = ".exe"
}
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cmd := exec.Command("go", "build")
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cmd.Dir = curDir
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setCmdEnv(cmd, username)
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executable := filepath.Base(curDir) + suffix
glog.V(5).Infof("go build for [%s]", executable)
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executable = filepath.Join(curDir, executable)
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stdout, err := cmd.StdoutPipe()
if nil != err {
glog.Error(err)
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data["succ"] = false
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return
}
stderr, err := cmd.StderrPipe()
if nil != err {
glog.Error(err)
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data["succ"] = false
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return
}
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if !data["succ"].(bool) {
return
}
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channelRet := map[string]interface{}{}
if nil != session.OutputWS[sid] {
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// display "START [go build]" in front-end browser
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channelRet["output"] = "<span class='start-build'>" + i18n.Get(locale, "start-build").(string) + "</span>\n"
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channelRet["cmd"] = "start-build"
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wsChannel := session.OutputWS[sid]
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err := wsChannel.WriteJSON(&channelRet)
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if nil != err {
glog.Error(err)
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return
}
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wsChannel.Refresh()
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}
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reader := bufio.NewReader(io.MultiReader(stdout, stderr))
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if err := cmd.Start(); nil != err {
glog.Error(err)
data["succ"] = false
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return
}
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go func(runningId int) {
defer util.Recover()
defer cmd.Wait()
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glog.V(5).Infof("Session [%s] is building [id=%d, dir=%s]", sid, runningId, curDir)
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// read all
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buf, _ := ioutil.ReadAll(reader)
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channelRet := map[string]interface{}{}
channelRet["cmd"] = "build"
channelRet["executable"] = executable
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if 0 == len(buf) { // build success
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channelRet["nextCmd"] = args["nextCmd"]
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channelRet["output"] = "<span class='build-succ'>" + i18n.Get(locale, "build-succ").(string) + "</span>\n"
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go func() { // go install, for subsequent gocode lib-path
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cmd := exec.Command("go", "install")
cmd.Dir = curDir
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setCmdEnv(cmd, username)
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out, _ := cmd.CombinedOutput()
if len(out) > 0 {
glog.Warning(string(out))
}
}()
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} else { // build error
// build gutter lint
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errOut := string(buf)
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channelRet["output"] = "<span class='build-error'>" + i18n.Get(locale, "build-error").(string) + "</span>\n" + errOut
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lines := strings.Split(errOut, "\n")
if lines[0][0] == '#' {
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lines = lines[1:] // skip the first line
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}
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lints := []*Lint{}
for _, line := range lines {
if len(line) < 1 {
continue
}
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if line[0] == '\t' {
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// append to the last lint
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last := len(lints)
msg := lints[last-1].Msg
msg += line
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lints[last-1].Msg = msg
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continue
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}
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file := line[:strings.Index(line, ":")]
left := line[strings.Index(line, ":")+1:]
index := strings.Index(left, ":")
lineNo := 0
msg := left
if index >= 0 {
lineNo, _ = strconv.Atoi(left[:index])
msg = left[index+2:]
}
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lint := &Lint{
File: file,
LineNo: lineNo - 1,
Severity: lintSeverityError,
Msg: msg,
}
lints = append(lints, lint)
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}
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channelRet["lints"] = lints
}
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if nil != session.OutputWS[sid] {
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glog.V(5).Infof("Session [%s] 's build [id=%d, dir=%s] has done", sid, runningId, curDir)
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wsChannel := session.OutputWS[sid]
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err := wsChannel.WriteJSON(&channelRet)
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if nil != err {
glog.Error(err)
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}
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wsChannel.Refresh()
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}
}(rand.Int())
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}
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// GoTestHandler handles request of go test.
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func GoTestHandler(w http.ResponseWriter, r *http.Request) {
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data := map[string]interface{}{"succ": true}
defer util.RetJSON(w, r, data)
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httpSession, _ := session.HTTPSession.Get(r, "wide-session")
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username := httpSession.Values["username"].(string)
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locale := conf.Wide.GetUser(username).Locale
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var args map[string]interface{}
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if err := json.NewDecoder(r.Body).Decode(&args); err != nil {
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glog.Error(err)
data["succ"] = false
return
}
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sid := args["sid"].(string)
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filePath := args["file"].(string)
curDir := filepath.Dir(filePath)
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cmd := exec.Command("go", "test", "-v")
cmd.Dir = curDir
setCmdEnv(cmd, username)
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stdout, err := cmd.StdoutPipe()
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if nil != err {
glog.Error(err)
data["succ"] = false
return
}
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stderr, err := cmd.StderrPipe()
if nil != err {
glog.Error(err)
data["succ"] = false
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return
}
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if !data["succ"].(bool) {
return
}
channelRet := map[string]interface{}{}
if nil != session.OutputWS[sid] {
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// display "START [go test]" in front-end browser
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channelRet["output"] = "<span class='start-test'>" + i18n.Get(locale, "start-test").(string) + "</span>\n"
channelRet["cmd"] = "start-test"
wsChannel := session.OutputWS[sid]
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err := wsChannel.WriteJSON(&channelRet)
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if nil != err {
glog.Error(err)
return
}
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wsChannel.Refresh()
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}
reader := bufio.NewReader(io.MultiReader(stdout, stderr))
if err := cmd.Start(); nil != err {
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glog.Error(err)
data["succ"] = false
return
}
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go func(runningId int) {
defer util.Recover()
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glog.V(5).Infof("Session [%s] is running [go test] [runningId=%d]", sid, runningId)
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channelRet := map[string]interface{}{}
channelRet["cmd"] = "go test"
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// read all
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buf, _ := ioutil.ReadAll(reader)
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// waiting for go test finished
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cmd.Wait()
if !cmd.ProcessState.Success() {
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glog.V(5).Infof("Session [%s] 's running [go test] [runningId=%d] has done (with error)", sid, runningId)
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channelRet["output"] = "<span class='test-error'>" + i18n.Get(locale, "test-error").(string) + "</span>\n" + string(buf)
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} else {
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glog.V(5).Infof("Session [%s] 's running [go test] [runningId=%d] has done", sid, runningId)
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channelRet["output"] = "<span class='test-succ'>" + i18n.Get(locale, "test-succ").(string) + "</span>\n" + string(buf)
}
if nil != session.OutputWS[sid] {
wsChannel := session.OutputWS[sid]
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err := wsChannel.WriteJSON(&channelRet)
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if nil != err {
glog.Error(err)
}
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wsChannel.Refresh()
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}
}(rand.Int())
}
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// GoInstallHandler handles request of go install.
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func GoInstallHandler(w http.ResponseWriter, r *http.Request) {
data := map[string]interface{}{"succ": true}
defer util.RetJSON(w, r, data)
httpSession, _ := session.HTTPSession.Get(r, "wide-session")
username := httpSession.Values["username"].(string)
locale := conf.Wide.GetUser(username).Locale
var args map[string]interface{}
if err := json.NewDecoder(r.Body).Decode(&args); err != nil {
glog.Error(err)
data["succ"] = false
return
}
sid := args["sid"].(string)
filePath := args["file"].(string)
curDir := filepath.Dir(filePath)
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cmd := exec.Command("go", "install")
cmd.Dir = curDir
setCmdEnv(cmd, username)
glog.V(5).Infof("go install %s", curDir)
stdout, err := cmd.StdoutPipe()
if nil != err {
glog.Error(err)
data["succ"] = false
return
}
stderr, err := cmd.StderrPipe()
if nil != err {
glog.Error(err)
data["succ"] = false
return
}
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if !data["succ"].(bool) {
return
}
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channelRet := map[string]interface{}{}
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if nil != session.OutputWS[sid] {
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// display "START [go install]" in front-end browser
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channelRet["output"] = "<span class='start-install'>" + i18n.Get(locale, "start-install").(string) + "</span>\n"
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channelRet["cmd"] = "start-install"
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wsChannel := session.OutputWS[sid]
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err := wsChannel.WriteJSON(&channelRet)
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if nil != err {
glog.Error(err)
return
}
2014-09-09 13:01:22 +04:00
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wsChannel.Refresh()
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}
2014-09-26 13:36:12 +04:00
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reader := bufio.NewReader(io.MultiReader(stdout, stderr))
2014-09-26 13:36:12 +04:00
2014-10-22 17:57:21 +04:00
if err := cmd.Start(); nil != err {
glog.Error(err)
data["succ"] = false
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return
}
2014-09-26 13:36:12 +04:00
2014-10-22 17:57:21 +04:00
go func(runningId int) {
defer util.Recover()
defer cmd.Wait()
2014-09-26 13:36:12 +04:00
2014-11-21 09:20:15 +03:00
glog.V(5).Infof("Session [%s] is running [go install] [id=%d, dir=%s]", sid, runningId, curDir)
2014-09-26 13:36:12 +04:00
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// read all
2014-10-23 11:22:15 +04:00
buf, _ := ioutil.ReadAll(reader)
2014-09-09 13:01:22 +04:00
2014-10-22 17:57:21 +04:00
channelRet := map[string]interface{}{}
channelRet["cmd"] = "go install"
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if 0 != len(buf) { // build error
// build gutter lint
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errOut := string(buf)
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lines := strings.Split(errOut, "\n")
if lines[0][0] == '#' {
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lines = lines[1:] // skip the first line
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}
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lints := []*Lint{}
2014-09-09 13:01:22 +04:00
2014-10-22 17:57:21 +04:00
for _, line := range lines {
if len(line) < 1 {
continue
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}
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2014-10-22 17:57:21 +04:00
if line[0] == '\t' {
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// append to the last lint
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last := len(lints)
msg := lints[last-1].Msg
msg += line
lints[last-1].Msg = msg
continue
}
file := line[:strings.Index(line, ":")]
left := line[strings.Index(line, ":")+1:]
index := strings.Index(left, ":")
lineNo := 0
msg := left
if index >= 0 {
lineNo, _ = strconv.Atoi(left[:index])
msg = left[index+2:]
}
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lint := &Lint{
File: file,
LineNo: lineNo - 1,
Severity: lintSeverityError,
Msg: msg,
}
lints = append(lints, lint)
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}
2014-10-22 17:57:21 +04:00
channelRet["lints"] = lints
2014-10-27 18:58:10 +03:00
channelRet["output"] = "<span class='install-error'>" + i18n.Get(locale, "install-error").(string) + "</span>\n" + errOut
2014-10-22 17:57:21 +04:00
} else {
2014-10-23 17:43:35 +04:00
channelRet["output"] = "<span class='install-succ'>" + i18n.Get(locale, "install-succ").(string) + "</span>\n"
2014-10-22 17:57:21 +04:00
}
if nil != session.OutputWS[sid] {
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glog.V(5).Infof("Session [%s] 's running [go install] [id=%d, dir=%s] has done", sid, runningId, curDir)
2014-10-22 17:57:21 +04:00
wsChannel := session.OutputWS[sid]
2014-11-20 08:59:08 +03:00
err := wsChannel.WriteJSON(&channelRet)
2014-10-22 17:57:21 +04:00
if nil != err {
glog.Error(err)
}
2014-10-29 13:15:18 +03:00
wsChannel.Refresh()
2014-10-22 17:57:21 +04:00
}
}(rand.Int())
2014-09-09 13:01:22 +04:00
}
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// GoGetHandler handles request of go get.
2014-09-05 08:18:50 +04:00
func GoGetHandler(w http.ResponseWriter, r *http.Request) {
data := map[string]interface{}{"succ": true}
defer util.RetJSON(w, r, data)
2014-09-17 10:35:48 +04:00
httpSession, _ := session.HTTPSession.Get(r, "wide-session")
2014-09-17 06:54:57 +04:00
username := httpSession.Values["username"].(string)
2014-10-23 17:43:35 +04:00
locale := conf.Wide.GetUser(username).Locale
2014-09-05 08:18:50 +04:00
var args map[string]interface{}
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if err := json.NewDecoder(r.Body).Decode(&args); err != nil {
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glog.Error(err)
data["succ"] = false
return
}
2014-09-17 06:54:57 +04:00
sid := args["sid"].(string)
2014-09-05 08:18:50 +04:00
filePath := args["file"].(string)
curDir := filepath.Dir(filePath)
2014-09-05 08:18:50 +04:00
cmd := exec.Command("go", "get")
cmd.Dir = curDir
setCmdEnv(cmd, username)
stdout, err := cmd.StdoutPipe()
if nil != err {
glog.Error(err)
data["succ"] = false
return
}
stderr, err := cmd.StderrPipe()
if nil != err {
glog.Error(err)
data["succ"] = false
return
}
2014-10-22 18:35:14 +04:00
if !data["succ"].(bool) {
return
}
channelRet := map[string]interface{}{}
if nil != session.OutputWS[sid] {
2014-10-29 13:15:18 +03:00
// display "START [go get]" in front-end browser
2014-10-22 18:35:14 +04:00
2014-10-23 17:43:35 +04:00
channelRet["output"] = "<span class='start-get'>" + i18n.Get(locale, "start-get").(string) + "</span>\n"
2014-10-22 18:35:14 +04:00
channelRet["cmd"] = "start-get"
wsChannel := session.OutputWS[sid]
2014-11-20 08:59:08 +03:00
err := wsChannel.WriteJSON(&channelRet)
2014-10-22 18:35:14 +04:00
if nil != err {
glog.Error(err)
return
}
2014-10-29 13:15:18 +03:00
wsChannel.Refresh()
2014-10-22 18:35:14 +04:00
}
2014-10-23 11:22:15 +04:00
reader := bufio.NewReader(io.MultiReader(stdout, stderr))
2014-09-05 08:18:50 +04:00
2014-10-22 18:35:14 +04:00
if err := cmd.Start(); nil != err {
glog.Error(err)
data["succ"] = false
2014-09-05 08:18:50 +04:00
2014-10-22 18:35:14 +04:00
return
}
2014-09-05 08:18:50 +04:00
go func(runningId int) {
2014-09-26 13:36:12 +04:00
defer util.Recover()
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defer cmd.Wait()
2014-09-26 13:36:12 +04:00
2014-11-21 09:20:15 +03:00
glog.V(5).Infof("Session [%s] is running [go get] [runningId=%d]", sid, runningId)
2014-09-05 08:18:50 +04:00
2014-10-22 18:35:14 +04:00
channelRet := map[string]interface{}{}
channelRet["cmd"] = "go get"
2014-10-29 13:15:18 +03:00
// read all
2014-10-23 12:05:21 +04:00
buf, _ := ioutil.ReadAll(reader)
2014-10-22 18:35:14 +04:00
2014-10-23 12:05:21 +04:00
if 0 != len(buf) {
2014-11-21 09:20:15 +03:00
glog.V(5).Infof("Session [%s] 's running [go get] [runningId=%d] has done (with error)", sid, runningId)
2014-10-22 18:35:14 +04:00
2014-10-27 18:58:10 +03:00
channelRet["output"] = "<span class='get-error'>" + i18n.Get(locale, "get-error").(string) + "</span>\n" + string(buf)
2014-10-23 12:05:21 +04:00
} else {
2014-11-21 09:20:15 +03:00
glog.V(5).Infof("Session [%s] 's running [go get] [runningId=%d] has done", sid, runningId)
2014-09-05 08:18:50 +04:00
2014-10-23 17:43:35 +04:00
channelRet["output"] = "<span class='get-succ'>" + i18n.Get(locale, "get-succ").(string) + "</span>\n"
2014-09-16 11:06:52 +04:00
2014-10-23 12:05:21 +04:00
}
2014-09-16 11:11:14 +04:00
2014-10-23 12:05:21 +04:00
if nil != session.OutputWS[sid] {
wsChannel := session.OutputWS[sid]
2014-10-22 18:35:14 +04:00
2014-11-20 08:59:08 +03:00
err := wsChannel.WriteJSON(&channelRet)
2014-10-23 12:05:21 +04:00
if nil != err {
glog.Error(err)
2014-10-22 18:35:14 +04:00
}
2014-10-29 13:15:18 +03:00
wsChannel.Refresh()
2014-09-05 08:18:50 +04:00
}
}(rand.Int())
}
2014-10-29 13:15:18 +03:00
// StopHandler handles request of stoping a running process.
2014-09-22 13:44:07 +04:00
func StopHandler(w http.ResponseWriter, r *http.Request) {
data := map[string]interface{}{"succ": true}
defer util.RetJSON(w, r, data)
var args map[string]interface{}
if err := json.NewDecoder(r.Body).Decode(&args); err != nil {
glog.Error(err)
data["succ"] = false
return
}
sid := args["sid"].(string)
2014-09-23 05:45:56 +04:00
pid := int(args["pid"].(float64))
2014-09-22 13:44:07 +04:00
wSession := session.WideSessions.Get(sid)
if nil == wSession {
data["succ"] = false
return
}
processes.kill(wSession, pid)
}
2014-09-02 20:26:10 +04:00
func setCmdEnv(cmd *exec.Cmd, username string) {
2014-09-05 07:24:53 +04:00
userWorkspace := conf.Wide.GetUserWorkspace(username)
2014-09-02 20:26:10 +04:00
cmd.Env = append(cmd.Env,
2014-11-12 09:49:14 +03:00
"GOPATH="+userWorkspace,
2014-09-04 19:48:49 +04:00
"GOOS="+runtime.GOOS,
"GOARCH="+runtime.GOARCH,
2014-09-05 08:18:50 +04:00
"GOROOT="+runtime.GOROOT(),
"PATH="+os.Getenv("PATH"))
2014-08-28 06:19:00 +04:00
}