wide/playground/file.go

139 lines
3.0 KiB
Go

// Copyright (c) 2014-2018, b3log.org & hacpai.com
//
// 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 playground
import (
"crypto/md5"
"encoding/hex"
"encoding/json"
"io"
"net/http"
"os"
"os/exec"
"path/filepath"
"strings"
"github.com/b3log/wide/conf"
"github.com/b3log/wide/session"
"github.com/b3log/wide/util"
)
// SaveHandler handles request of Playground code save.
func SaveHandler(w http.ResponseWriter, r *http.Request) {
result := util.NewResult()
defer util.RetResult(w, r, result)
session, _ := session.HTTPSession.Get(r, "wide-session")
if session.IsNew {
http.Error(w, "Forbidden", http.StatusForbidden)
return
}
var args map[string]interface{}
if err := json.NewDecoder(r.Body).Decode(&args); err != nil {
logger.Error(err)
result.Succ = false
return
}
code := args["code"].(string)
// Step1. format code
cmd := exec.Command("gofmt")
stdin, err := cmd.StdinPipe()
if nil != err {
logger.Error(err)
result.Succ = false
return
}
io.WriteString(stdin, code)
stdin.Close()
bytes, _ := cmd.Output()
output := string(bytes)
if "" != output {
code = string(output)
}
data := map[string]interface{}{}
result.Data = &data
data["code"] = code
// Step2. generate file name
hasher := md5.New()
hasher.Write([]byte(code))
fileName := hex.EncodeToString(hasher.Sum(nil))
fileName += ".go"
data["fileName"] = fileName
// Step3. write file
filePath := filepath.Clean(conf.Wide.Playground + "/" + fileName)
fout, err := os.Create(filePath)
fout.WriteString(code)
if err := fout.Close(); nil != err {
logger.Error(err)
result.Succ = false
return
}
}
// ShortURLHandler handles request of short URL.
func ShortURLHandler(w http.ResponseWriter, r *http.Request) {
result := util.NewResult()
defer util.RetResult(w, r, result)
session, _ := session.HTTPSession.Get(r, "wide-session")
if session.IsNew {
http.Error(w, "Forbidden", http.StatusForbidden)
return
}
var args map[string]interface{}
if err := json.NewDecoder(r.Body).Decode(&args); err != nil {
logger.Error(err)
result.Succ = false
return
}
url := args["url"].(string)
resp, _ := http.Post("http://dwz.cn/create.php", "application/x-www-form-urlencoded",
strings.NewReader("url="+url))
var response map[string]interface{}
if err := json.NewDecoder(resp.Body).Decode(&response); err != nil {
logger.Error(err)
result.Succ = false
return
}
shortURL := url
if 0 == response["status"].(float64) {
shortURL = response["tinyurl"].(string)
}
result.Data = shortURL
}