wide/output/outputs.go

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package output
import (
"encoding/json"
"io"
"math/rand"
"net/http"
"os"
"os/exec"
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"runtime"
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"strconv"
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"strings"
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"github.com/b3log/wide/conf"
"github.com/b3log/wide/user"
"github.com/b3log/wide/util"
"github.com/golang/glog"
"github.com/gorilla/websocket"
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)
var outputWS = map[string]*websocket.Conn{}
func WSHandler(w http.ResponseWriter, r *http.Request) {
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session, _ := user.Session.Get(r, "wide-session")
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sid := session.Values["id"].(string)
outputWS[sid], _ = websocket.Upgrade(w, r, nil, 1024, 1024)
ret := map[string]interface{}{"output": "Ouput initialized", "cmd": "init-output"}
outputWS[sid].WriteJSON(&ret)
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glog.V(4).Infof("Open a new [Output] with session [%s], %d", sid, len(outputWS))
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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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session, _ := user.Session.Get(r, "wide-session")
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sid := session.Values["id"].(string)
decoder := json.NewDecoder(r.Body)
var args map[string]interface{}
if err := decoder.Decode(&args); err != nil {
glog.Error(err)
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data["succ"] = false
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return
}
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filePath := args["executable"].(string)
curDir := filePath[:strings.LastIndex(filePath, string(os.PathSeparator))]
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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return
}
stderr, err := cmd.StderrPipe()
if nil != err {
glog.Error(err)
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data["succ"] = false
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return
}
reader := io.MultiReader(stdout, stderr)
cmd.Start()
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channelRet := map[string]interface{}{}
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go func(runningId int) {
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glog.V(3).Infof("Session [%s] is running [id=%d, file=%s]", sid, runningId, filePath)
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for {
buf := make([]byte, 1024)
count, err := reader.Read(buf)
if nil != err || 0 == count {
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glog.V(3).Infof("Session [%s] 's running [id=%d, file=%s] has done", sid, runningId, filePath)
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break
} else {
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channelRet["output"] = string(buf[:count])
channelRet["cmd"] = "run"
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if nil != outputWS[sid] {
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err := outputWS[sid].WriteJSON(&channelRet)
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if nil != err {
glog.Error(err)
break
}
}
}
}
}(rand.Int())
}
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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session, _ := user.Session.Get(r, "wide-session")
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sid := session.Values["id"].(string)
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username := session.Values["username"].(string)
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decoder := json.NewDecoder(r.Body)
var args map[string]interface{}
if err := decoder.Decode(&args); err != nil {
glog.Error(err)
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data["succ"] = false
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return
}
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filePath := args["file"].(string)
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curDir := filePath[:strings.LastIndex(filePath, string(os.PathSeparator))]
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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 := ""
if "windows" == runtime.GOOS {
suffix = ".exe"
}
executable := "main" + suffix
argv := []string{"build", "-o", executable, filePath}
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cmd := exec.Command("go", argv...)
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cmd.Dir = curDir
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setCmdEnv(cmd, username)
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glog.V(5).Infof("go build -o %s %s", executable, filePath)
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executable = curDir + string(os.PathSeparator) + executable
// 先把可执行文件删了
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err = os.RemoveAll(executable)
if nil != err {
glog.Info(err)
data["succ"] = false
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return
}
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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) {
reader := io.MultiReader(stdout, stderr)
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cmd.Start()
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go func(runningId int) {
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glog.V(3).Infof("Session [%s] is building [id=%d, file=%s]", sid, runningId, filePath)
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// 一次性读取
buf := make([]byte, 1024*8)
count, _ := reader.Read(buf)
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channelRet := map[string]interface{}{}
channelRet["output"] = string(buf[:count])
channelRet["cmd"] = "build"
channelRet["nextCmd"] = "run"
channelRet["executable"] = executable
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if 0 == count { // 说明构建成功,没有错误信息输出
go func() { // 运行 go install生成的库用于 gocode lib-path
cmd := exec.Command("go", "install")
cmd.Dir = curDir
setCmdEnv(cmd, username)
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out, _ := cmd.CombinedOutput()
if len(out) > 0 {
glog.Warning(string(out))
}
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}()
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} else { // 构建失败
// 解析错误信息,返回给编辑器 gutter lint
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lines := strings.Split(string(buf[:count]), "\n")[1:]
lints := []map[string]interface{}{}
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for _, line := range lines {
if len(line) <= 1 {
continue
}
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file := line[:strings.Index(line, ":")]
left := line[strings.Index(line, ":")+1:]
lineNo, _ := strconv.Atoi(left[:strings.Index(left, ":")])
msg := left[strings.Index(left, ":")+2:]
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lint := map[string]interface{}{}
lint["file"] = file
lint["lineNo"] = lineNo - 1
lint["msg"] = msg
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lint["severity"] = "error" // warning
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lints = append(lints, lint)
}
channelRet["lints"] = lints
}
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if nil != outputWS[sid] {
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glog.V(3).Infof("Session [%s] 's build [id=%d, file=%s] has done", sid, runningId, filePath)
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err := outputWS[sid].WriteJSON(&channelRet)
if nil != err {
glog.Error(err)
}
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}
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}(rand.Int())
}
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}
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func GoInstallHandler(w http.ResponseWriter, r *http.Request) {
data := map[string]interface{}{"succ": true}
defer util.RetJSON(w, r, data)
session, _ := user.Session.Get(r, "wide-session")
sid := session.Values["id"].(string)
username := session.Values["username"].(string)
decoder := json.NewDecoder(r.Body)
var args map[string]interface{}
if err := decoder.Decode(&args); err != nil {
glog.Error(err)
data["succ"] = false
return
}
filePath := args["file"].(string)
curDir := filePath[:strings.LastIndex(filePath, string(os.PathSeparator))]
fout, err := os.Create(filePath)
if nil != err {
glog.Error(err)
data["succ"] = false
return
}
code := args["code"].(string)
fout.WriteString(code)
if err := fout.Close(); nil != err {
glog.Error(err)
data["succ"] = false
return
}
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
}
if data["succ"].(bool) {
reader := io.MultiReader(stdout, stderr)
cmd.Start()
go func(runningId int) {
glog.V(3).Infof("Session [%s] is running [go install] [id=%d, dir=%s]", sid, runningId, curDir)
// 一次性读取
buf := make([]byte, 1024*8)
count, _ := reader.Read(buf)
channelRet := map[string]interface{}{}
channelRet["output"] = string(buf[:count])
channelRet["cmd"] = "go install"
if 0 == count { // 说明构建成功,没有错误信息输出
glog.Info("go install succ")
} else { // 构建失败
// 解析错误信息,返回给编辑器 gutter lint
lines := strings.Split(string(buf[:count]), "\n")[1:]
lints := []map[string]interface{}{}
for _, line := range lines {
if len(line) <= 1 {
continue
}
file := line[:strings.Index(line, ":")]
left := line[strings.Index(line, ":")+1:]
lineNo, _ := strconv.Atoi(left[:strings.Index(left, ":")])
msg := left[strings.Index(left, ":")+2:]
lint := map[string]interface{}{}
lint["file"] = file
lint["lineNo"] = lineNo - 1
lint["msg"] = msg
lint["severity"] = "error" // warning
lints = append(lints, lint)
}
channelRet["lints"] = lints
}
if nil != outputWS[sid] {
glog.V(3).Infof("Session [%s] 's running [go install] [id=%d, dir=%s] has done", sid, runningId, curDir)
err := outputWS[sid].WriteJSON(&channelRet)
if nil != err {
glog.Error(err)
}
}
}(rand.Int())
}
}
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func GoGetHandler(w http.ResponseWriter, r *http.Request) {
data := map[string]interface{}{"succ": true}
defer util.RetJSON(w, r, data)
session, _ := user.Session.Get(r, "wide-session")
sid := session.Values["id"].(string)
username := session.Values["username"].(string)
decoder := json.NewDecoder(r.Body)
var args map[string]interface{}
if err := decoder.Decode(&args); err != nil {
glog.Error(err)
data["succ"] = false
return
}
filePath := args["file"].(string)
curDir := filePath[:strings.LastIndex(filePath, string(os.PathSeparator))]
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
}
reader := io.MultiReader(stdout, stderr)
cmd.Start()
channelRet := map[string]interface{}{}
go func(runningId int) {
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glog.V(3).Infof("Session [%s] is running [go get] [runningId=%d]", sid, runningId)
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for {
buf := make([]byte, 1024)
count, err := reader.Read(buf)
if nil != err || 0 == count {
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glog.V(3).Infof("Session [%s] 's running [go get] [runningId=%d] has done", sid, runningId)
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break
} else {
channelRet["output"] = string(buf[:count])
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channelRet["cmd"] = "go get"
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if nil != outputWS[sid] {
err := outputWS[sid].WriteJSON(&channelRet)
if nil != err {
glog.Error(err)
break
}
}
}
}
}(rand.Int())
}
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func setCmdEnv(cmd *exec.Cmd, username string) {
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userWorkspace := conf.Wide.GetUserWorkspace(username)
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cmd.Env = append(cmd.Env,
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"GOPATH="+userWorkspace,
"GOOS="+runtime.GOOS,
"GOARCH="+runtime.GOARCH,
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"GOROOT="+runtime.GOROOT(),
"PATH="+os.Getenv("PATH"))
//"TERM="+os.Getenv("COMSPEC"),
//"ComSpec="+os.Getenv("ComSpec")
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}