wide/scm/git/clone.go

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// Copyright (c) 2014-2015, b3log.org
//
// 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
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// 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.
package git
import (
"bufio"
"encoding/json"
"io"
"io/ioutil"
"math/rand"
"net/http"
"os"
"os/exec"
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"github.com/b3log/wide/conf"
"github.com/b3log/wide/i18n"
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"github.com/b3log/wide/log"
"github.com/b3log/wide/session"
"github.com/b3log/wide/util"
)
// Logger.
var logger = log.NewLogger(os.Stdout)
// Clone handles request of git clone.
func CloneHandler(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")
if httpSession.IsNew {
http.Error(w, "Forbidden", http.StatusForbidden)
return
}
username := httpSession.Values["username"].(string)
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locale := conf.GetUser(username).Locale
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var args map[string]interface{}
if err := json.NewDecoder(r.Body).Decode(&args); err != nil {
logger.Error(err)
data["succ"] = false
return
}
sid := args["sid"].(string)
path := args["path"].(string)
repository := args["repository"].(string)
cmd := exec.Command("git", "clone", repository)
cmd.Dir = path
stdout, err := cmd.StdoutPipe()
if nil != err {
logger.Error(err)
data["succ"] = false
return
}
stderr, err := cmd.StderrPipe()
if nil != err {
logger.Error(err)
data["succ"] = false
return
}
if !data["succ"].(bool) {
return
}
channelRet := map[string]interface{}{}
if nil != session.OutputWS[sid] {
// display "START [git clone]" in front-end browser
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channelRet["output"] = "<span class='start-get'>" + i18n.Get(locale, "start-git_clone").(string) + "</span>\n"
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channelRet["cmd"] = "start-git_clone"
wsChannel := session.OutputWS[sid]
err := wsChannel.WriteJSON(&channelRet)
if nil != err {
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logger.Warn(err)
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return
}
wsChannel.Refresh()
}
reader := bufio.NewReader(io.MultiReader(stdout, stderr))
if err := cmd.Start(); nil != err {
logger.Error(err)
data["succ"] = false
return
}
go func(runningId int) {
defer util.Recover()
defer cmd.Wait()
logger.Debugf("User [%s, %s] is running [git clone] [runningId=%d]", username, sid, runningId)
channelRet := map[string]interface{}{}
channelRet["cmd"] = "git clone"
// read all
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buf, err := ioutil.ReadAll(reader)
if nil != err {
logger.Warn(err)
// TODO: handle clone error
}
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logger.Debugf("User [%s, %s] 's running [git clone] [runningId=%d] has done: %s", username, sid, runningId, string(buf))
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channelRet["output"] = "<span class='get-succ'>" + i18n.Get(locale, "git_clone-done").(string) + "</span>\n"
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if nil != session.OutputWS[sid] {
wsChannel := session.OutputWS[sid]
err := wsChannel.WriteJSON(&channelRet)
if nil != err {
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logger.Warn(err)
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}
wsChannel.Refresh()
}
}(rand.Int())
}