/
httpapi.go
116 lines (97 loc) · 2.66 KB
/
httpapi.go
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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
//
// 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 main
import (
"fmt"
"io"
"io/ioutil"
"log"
"net/http"
"net/url"
"os"
"strings"
)
func imgOnfly(w http.ResponseWriter, r *http.Request) {
escapeUrl := strings.Trim(r.RequestURI, "/go?")
w.Header().Set("Content-Type", "image/jpeg")
rawUrl, err := url.QueryUnescape(escapeUrl)
log.Println("Get url:", rawUrl)
if err != nil {
log.Println("url err:", err)
}
response, err := http.Get(rawUrl)
if err != nil {
log.Println("Error while downloading", rawUrl, "-", err)
return
}
defer response.Body.Close()
totalBody, err := ioutil.ReadAll(response.Body)
if err != nil {
fmt.Println("Error while downloading", rawUrl, "-", err)
return
}
io.WriteString(w, string(totalBody))
}
func imgDownload(w http.ResponseWriter, r *http.Request) {
idStr := strings.Trim(r.RequestURI, "/imgs?")
ret, err := GetImageContent(idStr)
if err != nil {
io.WriteString(w, "No data")
}
for _, v := range spportType {
if strings.EqualFold(ret.ImgType, v.ImgType) {
log.Println("Content-Type:", v.ContentType)
w.Header().Set("Content-Type", v.ContentType)
break
}
}
io.WriteString(w, string(ret.Content))
// id := strings.TrimRight(idStr, ".jpg")
// w.Header().Set("Content-Type", "image/jpeg")
// i, err := strconv.ParseInt(id, 10, 64)
// if err != nil {
// log.Println("input not a number for id:", id)
// return
// }
// if v, ok := ImgMap[i]; ok {
// io.WriteString(w, string(v))
// }
// io.WriteString(w, "No data")
}
func urlGet(w http.ResponseWriter, r *http.Request) {
escapeURL := strings.Trim(r.RequestURI, "/url?")
rawURL, err := url.QueryUnescape(escapeURL)
log.Println("Get url:", rawURL)
if err != nil {
log.Println("url input err:", err)
return
}
retID, err := GetImgCache(rawURL)
if err != nil {
log.Println("Error on GetImgCache", err)
return
}
io.WriteString(w, retID)
}
func serveHTTPAPI(port string, existC chan bool) {
go func() {
if err, ok := <-existC; ok {
log.Fatal(err)
}
os.Exit(0)
}()
mux := http.NewServeMux()
mux.HandleFunc("/go", imgOnfly)
mux.HandleFunc("/imgs", imgDownload)
mux.HandleFunc("/url", urlGet)
http.ListenAndServe(":"+port, mux)
}