467 lines
11 KiB
Go
467 lines
11 KiB
Go
// Copyright (c) 2015, B3log
|
|
//
|
|
// 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 editor includes editor related manipulations.
|
|
package editor
|
|
|
|
import (
|
|
"bytes"
|
|
"encoding/json"
|
|
"net/http"
|
|
"os"
|
|
"os/exec"
|
|
"path/filepath"
|
|
"runtime"
|
|
"strconv"
|
|
"strings"
|
|
"time"
|
|
|
|
"github.com/b3log/wide/conf"
|
|
"github.com/b3log/wide/file"
|
|
"github.com/b3log/wide/log"
|
|
"github.com/b3log/wide/session"
|
|
"github.com/b3log/wide/util"
|
|
"github.com/gorilla/websocket"
|
|
)
|
|
|
|
// Logger.
|
|
var logger = log.NewLogger(os.Stdout)
|
|
|
|
// WSHandler handles request of creating editor channel.
|
|
// XXX: NOT used at present
|
|
func WSHandler(w http.ResponseWriter, r *http.Request) {
|
|
httpSession, _ := session.HTTPSession.Get(r, "wide-session")
|
|
if httpSession.IsNew {
|
|
http.Error(w, "Forbidden", http.StatusForbidden)
|
|
|
|
return
|
|
}
|
|
|
|
sid := httpSession.Values["id"].(string)
|
|
|
|
conn, _ := websocket.Upgrade(w, r, nil, 1024, 1024)
|
|
editorChan := util.WSChannel{Sid: sid, Conn: conn, Request: r, Time: time.Now()}
|
|
|
|
ret := map[string]interface{}{"output": "Editor initialized", "cmd": "init-editor"}
|
|
err := editorChan.WriteJSON(&ret)
|
|
if nil != err {
|
|
return
|
|
}
|
|
|
|
session.EditorWS[sid] = &editorChan
|
|
|
|
logger.Tracef("Open a new [Editor] with session [%s], %d", sid, len(session.EditorWS))
|
|
|
|
args := map[string]interface{}{}
|
|
for {
|
|
if err := session.EditorWS[sid].ReadJSON(&args); err != nil {
|
|
return
|
|
}
|
|
|
|
code := args["code"].(string)
|
|
line := int(args["cursorLine"].(float64))
|
|
ch := int(args["cursorCh"].(float64))
|
|
|
|
offset := getCursorOffset(code, line, ch)
|
|
|
|
// logger.Debugf("offset: %d", offset)
|
|
|
|
gocode := util.Go.GetExecutableInGOBIN("gocode")
|
|
argv := []string{"-f=json", "autocomplete", strconv.Itoa(offset)}
|
|
|
|
var output bytes.Buffer
|
|
|
|
cmd := exec.Command(gocode, argv...)
|
|
cmd.Stdout = &output
|
|
|
|
stdin, _ := cmd.StdinPipe()
|
|
cmd.Start()
|
|
stdin.Write([]byte(code))
|
|
stdin.Close()
|
|
cmd.Wait()
|
|
|
|
ret = map[string]interface{}{"output": string(output.Bytes()), "cmd": "autocomplete"}
|
|
|
|
if err := session.EditorWS[sid].WriteJSON(&ret); err != nil {
|
|
logger.Error("Editor WS ERROR: " + err.Error())
|
|
return
|
|
}
|
|
}
|
|
}
|
|
|
|
// AutocompleteHandler handles request of code autocompletion.
|
|
func AutocompleteHandler(w http.ResponseWriter, r *http.Request) {
|
|
var args map[string]interface{}
|
|
|
|
if err := json.NewDecoder(r.Body).Decode(&args); err != nil {
|
|
logger.Error(err)
|
|
http.Error(w, err.Error(), 500)
|
|
|
|
return
|
|
}
|
|
|
|
session, _ := session.HTTPSession.Get(r, "wide-session")
|
|
if session.IsNew {
|
|
http.Error(w, "Forbidden", http.StatusForbidden)
|
|
|
|
return
|
|
}
|
|
username := session.Values["username"].(string)
|
|
|
|
path := args["path"].(string)
|
|
|
|
fout, err := os.Create(path)
|
|
|
|
if nil != err {
|
|
logger.Error(err)
|
|
http.Error(w, err.Error(), 500)
|
|
|
|
return
|
|
}
|
|
|
|
code := args["code"].(string)
|
|
fout.WriteString(code)
|
|
|
|
if err := fout.Close(); nil != err {
|
|
logger.Error(err)
|
|
http.Error(w, err.Error(), 500)
|
|
|
|
return
|
|
}
|
|
|
|
line := int(args["cursorLine"].(float64))
|
|
ch := int(args["cursorCh"].(float64))
|
|
|
|
offset := getCursorOffset(code, line, ch)
|
|
|
|
// logger.Infof("offset: %d", offset)
|
|
|
|
userWorkspace := conf.GetUserWorkspace(username)
|
|
workspaces := filepath.SplitList(userWorkspace)
|
|
libPath := ""
|
|
for _, workspace := range workspaces {
|
|
userLib := workspace + conf.PathSeparator + "pkg" + conf.PathSeparator +
|
|
runtime.GOOS + "_" + runtime.GOARCH
|
|
libPath += userLib + conf.PathListSeparator
|
|
}
|
|
|
|
logger.Tracef("gocode set lib-path [%s]", libPath)
|
|
|
|
// FIXME: using gocode set lib-path has some issues while accrossing workspaces
|
|
gocode := util.Go.GetExecutableInGOBIN("gocode")
|
|
argv := []string{"set", "lib-path", libPath}
|
|
exec.Command(gocode, argv...).Run()
|
|
|
|
argv = []string{"-f=json", "autocomplete", strconv.Itoa(offset)}
|
|
cmd := exec.Command(gocode, argv...)
|
|
|
|
stdin, _ := cmd.StdinPipe()
|
|
stdin.Write([]byte(code))
|
|
stdin.Close()
|
|
|
|
output, err := cmd.CombinedOutput()
|
|
if nil != err {
|
|
logger.Error(err)
|
|
http.Error(w, err.Error(), 500)
|
|
|
|
return
|
|
}
|
|
|
|
w.Header().Set("Content-Type", "application/json")
|
|
w.Write(output)
|
|
}
|
|
|
|
// GetExprInfoHandler handles request of getting expression infomation.
|
|
func GetExprInfoHandler(w http.ResponseWriter, r *http.Request) {
|
|
data := map[string]interface{}{"succ": true}
|
|
defer util.RetJSON(w, r, data)
|
|
|
|
session, _ := session.HTTPSession.Get(r, "wide-session")
|
|
username := session.Values["username"].(string)
|
|
|
|
var args map[string]interface{}
|
|
if err := json.NewDecoder(r.Body).Decode(&args); err != nil {
|
|
logger.Error(err)
|
|
http.Error(w, err.Error(), 500)
|
|
|
|
return
|
|
}
|
|
|
|
path := args["path"].(string)
|
|
curDir := path[:strings.LastIndex(path, conf.PathSeparator)]
|
|
filename := path[strings.LastIndex(path, conf.PathSeparator)+1:]
|
|
|
|
fout, err := os.Create(path)
|
|
|
|
if nil != err {
|
|
logger.Error(err)
|
|
data["succ"] = false
|
|
|
|
return
|
|
}
|
|
|
|
code := args["code"].(string)
|
|
fout.WriteString(code)
|
|
|
|
if err := fout.Close(); nil != err {
|
|
logger.Error(err)
|
|
data["succ"] = false
|
|
|
|
return
|
|
}
|
|
|
|
line := int(args["cursorLine"].(float64))
|
|
ch := int(args["cursorCh"].(float64))
|
|
|
|
offset := getCursorOffset(code, line, ch)
|
|
|
|
// logger.Infof("offset [%d]", offset)
|
|
|
|
ideStub := util.Go.GetExecutableInGOBIN("ide_stub")
|
|
argv := []string{"type", "-cursor", filename + ":" + strconv.Itoa(offset), "-info", "."}
|
|
cmd := exec.Command(ideStub, argv...)
|
|
cmd.Dir = curDir
|
|
|
|
setCmdEnv(cmd, username)
|
|
|
|
output, err := cmd.CombinedOutput()
|
|
if nil != err {
|
|
logger.Error(err)
|
|
http.Error(w, err.Error(), 500)
|
|
|
|
return
|
|
}
|
|
|
|
exprInfo := strings.TrimSpace(string(output))
|
|
if "" == exprInfo {
|
|
data["succ"] = false
|
|
|
|
return
|
|
}
|
|
|
|
data["info"] = exprInfo
|
|
}
|
|
|
|
// FindDeclarationHandler handles request of finding declaration.
|
|
func FindDeclarationHandler(w http.ResponseWriter, r *http.Request) {
|
|
data := map[string]interface{}{"succ": true}
|
|
defer util.RetJSON(w, r, data)
|
|
|
|
session, _ := session.HTTPSession.Get(r, "wide-session")
|
|
if session.IsNew {
|
|
http.Error(w, "Forbidden", http.StatusForbidden)
|
|
|
|
return
|
|
}
|
|
username := session.Values["username"].(string)
|
|
|
|
var args map[string]interface{}
|
|
if err := json.NewDecoder(r.Body).Decode(&args); err != nil {
|
|
logger.Error(err)
|
|
http.Error(w, err.Error(), 500)
|
|
|
|
return
|
|
}
|
|
|
|
path := args["path"].(string)
|
|
curDir := path[:strings.LastIndex(path, conf.PathSeparator)]
|
|
filename := path[strings.LastIndex(path, conf.PathSeparator)+1:]
|
|
|
|
fout, err := os.Create(path)
|
|
|
|
if nil != err {
|
|
logger.Error(err)
|
|
data["succ"] = false
|
|
|
|
return
|
|
}
|
|
|
|
code := args["code"].(string)
|
|
fout.WriteString(code)
|
|
|
|
if err := fout.Close(); nil != err {
|
|
logger.Error(err)
|
|
data["succ"] = false
|
|
|
|
return
|
|
}
|
|
|
|
line := int(args["cursorLine"].(float64))
|
|
ch := int(args["cursorCh"].(float64))
|
|
|
|
offset := getCursorOffset(code, line, ch)
|
|
|
|
// logger.Infof("offset [%d]", offset)
|
|
|
|
ideStub := util.Go.GetExecutableInGOBIN("ide_stub")
|
|
argv := []string{"type", "-cursor", filename + ":" + strconv.Itoa(offset), "-def", "."}
|
|
cmd := exec.Command(ideStub, argv...)
|
|
cmd.Dir = curDir
|
|
|
|
setCmdEnv(cmd, username)
|
|
|
|
output, err := cmd.CombinedOutput()
|
|
if nil != err {
|
|
logger.Error(err)
|
|
http.Error(w, err.Error(), 500)
|
|
|
|
return
|
|
}
|
|
|
|
found := strings.TrimSpace(string(output))
|
|
if "" == found {
|
|
data["succ"] = false
|
|
|
|
return
|
|
}
|
|
|
|
part := found[:strings.LastIndex(found, ":")]
|
|
cursorSep := strings.LastIndex(part, ":")
|
|
path = found[:cursorSep]
|
|
cursorLine, _ := strconv.Atoi(found[cursorSep+1 : strings.LastIndex(found, ":")])
|
|
cursorCh, _ := strconv.Atoi(found[strings.LastIndex(found, ":")+1:])
|
|
|
|
data["path"] = path
|
|
data["cursorLine"] = cursorLine
|
|
data["cursorCh"] = cursorCh
|
|
}
|
|
|
|
// FindUsagesHandler handles request of finding usages.
|
|
func FindUsagesHandler(w http.ResponseWriter, r *http.Request) {
|
|
data := map[string]interface{}{"succ": true}
|
|
defer util.RetJSON(w, r, data)
|
|
|
|
session, _ := session.HTTPSession.Get(r, "wide-session")
|
|
if session.IsNew {
|
|
http.Error(w, "Forbidden", http.StatusForbidden)
|
|
|
|
return
|
|
}
|
|
username := session.Values["username"].(string)
|
|
|
|
var args map[string]interface{}
|
|
|
|
if err := json.NewDecoder(r.Body).Decode(&args); err != nil {
|
|
logger.Error(err)
|
|
http.Error(w, err.Error(), 500)
|
|
|
|
return
|
|
}
|
|
|
|
filePath := args["path"].(string)
|
|
curDir := filePath[:strings.LastIndex(filePath, conf.PathSeparator)]
|
|
filename := filePath[strings.LastIndex(filePath, conf.PathSeparator)+1:]
|
|
|
|
fout, err := os.Create(filePath)
|
|
|
|
if nil != err {
|
|
logger.Error(err)
|
|
data["succ"] = false
|
|
|
|
return
|
|
}
|
|
|
|
code := args["code"].(string)
|
|
fout.WriteString(code)
|
|
|
|
if err := fout.Close(); nil != err {
|
|
logger.Error(err)
|
|
data["succ"] = false
|
|
|
|
return
|
|
}
|
|
|
|
line := int(args["cursorLine"].(float64))
|
|
ch := int(args["cursorCh"].(float64))
|
|
|
|
offset := getCursorOffset(code, line, ch)
|
|
// logger.Infof("offset [%d]", offset)
|
|
|
|
ideStub := util.Go.GetExecutableInGOBIN("ide_stub")
|
|
argv := []string{"type", "-cursor", filename + ":" + strconv.Itoa(offset), "-use", "."}
|
|
cmd := exec.Command(ideStub, argv...)
|
|
cmd.Dir = curDir
|
|
|
|
setCmdEnv(cmd, username)
|
|
|
|
output, err := cmd.CombinedOutput()
|
|
if nil != err {
|
|
logger.Error(err)
|
|
http.Error(w, err.Error(), 500)
|
|
|
|
return
|
|
}
|
|
|
|
result := strings.TrimSpace(string(output))
|
|
if "" == result {
|
|
data["succ"] = false
|
|
|
|
return
|
|
}
|
|
|
|
founds := strings.Split(result, "\n")
|
|
usages := []*file.Snippet{}
|
|
for _, found := range founds {
|
|
found = strings.TrimSpace(found)
|
|
|
|
part := found[:strings.LastIndex(found, ":")]
|
|
cursorSep := strings.LastIndex(part, ":")
|
|
path := found[:cursorSep]
|
|
cursorLine, _ := strconv.Atoi(found[cursorSep+1 : strings.LastIndex(found, ":")])
|
|
cursorCh, _ := strconv.Atoi(found[strings.LastIndex(found, ":")+1:])
|
|
|
|
usage := &file.Snippet{Path: path, Line: cursorLine, Ch: cursorCh, Contents: []string{""}}
|
|
usages = append(usages, usage)
|
|
}
|
|
|
|
data["founds"] = usages
|
|
}
|
|
|
|
// getCursorOffset calculates the cursor offset.
|
|
//
|
|
// line is the line number, starts with 0 that means the first line
|
|
// ch is the column number, starts with 0 that means the first column
|
|
func getCursorOffset(code string, line, ch int) (offset int) {
|
|
lines := strings.Split(code, "\n")
|
|
|
|
// calculate sum length of lines before
|
|
for i := 0; i < line; i++ {
|
|
offset += len(lines[i])
|
|
}
|
|
|
|
// calculate length of the current line and column
|
|
curLine := lines[line]
|
|
var buffer bytes.Buffer
|
|
r := []rune(curLine)
|
|
for i := 0; i < ch; i++ {
|
|
buffer.WriteString(string(r[i]))
|
|
}
|
|
|
|
offset += len(buffer.String()) // append length of current line
|
|
offset += line // append number of '\n'
|
|
|
|
return offset
|
|
}
|
|
|
|
func setCmdEnv(cmd *exec.Cmd, username string) {
|
|
userWorkspace := conf.GetUserWorkspace(username)
|
|
|
|
cmd.Env = append(cmd.Env,
|
|
"GOPATH="+userWorkspace,
|
|
"GOOS="+runtime.GOOS,
|
|
"GOARCH="+runtime.GOARCH,
|
|
"GOROOT="+runtime.GOROOT(),
|
|
"PATH="+os.Getenv("PATH"))
|
|
}
|