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path: root/library/jqupload/server/gae-go/app/main.go
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Diffstat (limited to 'library/jqupload/server/gae-go/app/main.go')
-rw-r--r--library/jqupload/server/gae-go/app/main.go296
1 files changed, 0 insertions, 296 deletions
diff --git a/library/jqupload/server/gae-go/app/main.go b/library/jqupload/server/gae-go/app/main.go
deleted file mode 100644
index f995f73a8..000000000
--- a/library/jqupload/server/gae-go/app/main.go
+++ /dev/null
@@ -1,296 +0,0 @@
-/*
- * jQuery File Upload Plugin GAE Go Example 3.1.1
- * https://github.com/blueimp/jQuery-File-Upload
- *
- * Copyright 2011, Sebastian Tschan
- * https://blueimp.net
- *
- * Licensed under the MIT license:
- * http://www.opensource.org/licenses/MIT
- */
-
-package app
-
-import (
- "appengine"
- "appengine/blobstore"
- "appengine/image"
- "appengine/taskqueue"
- "bytes"
- "encoding/json"
- "fmt"
- "io"
- "log"
- "mime/multipart"
- "net/http"
- "net/url"
- "regexp"
- "strings"
- "time"
-)
-
-const (
- WEBSITE = "http://blueimp.github.io/jQuery-File-Upload/"
- MIN_FILE_SIZE = 1 // bytes
- MAX_FILE_SIZE = 5000000 // bytes
- IMAGE_TYPES = "image/(gif|p?jpeg|(x-)?png)"
- ACCEPT_FILE_TYPES = IMAGE_TYPES
- EXPIRATION_TIME = 300 // seconds
- THUMBNAIL_PARAM = "=s80"
-)
-
-var (
- imageTypes = regexp.MustCompile(IMAGE_TYPES)
- acceptFileTypes = regexp.MustCompile(ACCEPT_FILE_TYPES)
-)
-
-type FileInfo struct {
- Key appengine.BlobKey `json:"-"`
- Url string `json:"url,omitempty"`
- ThumbnailUrl string `json:"thumbnailUrl,omitempty"`
- Name string `json:"name"`
- Type string `json:"type"`
- Size int64 `json:"size"`
- Error string `json:"error,omitempty"`
- DeleteUrl string `json:"deleteUrl,omitempty"`
- DeleteType string `json:"deleteType,omitempty"`
-}
-
-func (fi *FileInfo) ValidateType() (valid bool) {
- if acceptFileTypes.MatchString(fi.Type) {
- return true
- }
- fi.Error = "Filetype not allowed"
- return false
-}
-
-func (fi *FileInfo) ValidateSize() (valid bool) {
- if fi.Size < MIN_FILE_SIZE {
- fi.Error = "File is too small"
- } else if fi.Size > MAX_FILE_SIZE {
- fi.Error = "File is too big"
- } else {
- return true
- }
- return false
-}
-
-func (fi *FileInfo) CreateUrls(r *http.Request, c appengine.Context) {
- u := &url.URL{
- Scheme: r.URL.Scheme,
- Host: appengine.DefaultVersionHostname(c),
- Path: "/",
- }
- uString := u.String()
- fi.Url = uString + escape(string(fi.Key)) + "/" +
- escape(string(fi.Name))
- fi.DeleteUrl = fi.Url + "?delete=true"
- fi.DeleteType = "DELETE"
- if imageTypes.MatchString(fi.Type) {
- servingUrl, err := image.ServingURL(
- c,
- fi.Key,
- &image.ServingURLOptions{
- Secure: strings.HasSuffix(u.Scheme, "s"),
- Size: 0,
- Crop: false,
- },
- )
- check(err)
- fi.ThumbnailUrl = servingUrl.String() + THUMBNAIL_PARAM
- }
-}
-
-func check(err error) {
- if err != nil {
- panic(err)
- }
-}
-
-func escape(s string) string {
- return strings.Replace(url.QueryEscape(s), "+", "%20", -1)
-}
-
-func delayedDelete(c appengine.Context, fi *FileInfo) {
- if key := string(fi.Key); key != "" {
- task := &taskqueue.Task{
- Path: "/" + escape(key) + "/-",
- Method: "DELETE",
- Delay: time.Duration(EXPIRATION_TIME) * time.Second,
- }
- taskqueue.Add(c, task, "")
- }
-}
-
-func handleUpload(r *http.Request, p *multipart.Part) (fi *FileInfo) {
- fi = &FileInfo{
- Name: p.FileName(),
- Type: p.Header.Get("Content-Type"),
- }
- if !fi.ValidateType() {
- return
- }
- defer func() {
- if rec := recover(); rec != nil {
- log.Println(rec)
- fi.Error = rec.(error).Error()
- }
- }()
- lr := &io.LimitedReader{R: p, N: MAX_FILE_SIZE + 1}
- context := appengine.NewContext(r)
- w, err := blobstore.Create(context, fi.Type)
- defer func() {
- w.Close()
- fi.Size = MAX_FILE_SIZE + 1 - lr.N
- fi.Key, err = w.Key()
- check(err)
- if !fi.ValidateSize() {
- err := blobstore.Delete(context, fi.Key)
- check(err)
- return
- }
- delayedDelete(context, fi)
- fi.CreateUrls(r, context)
- }()
- check(err)
- _, err = io.Copy(w, lr)
- return
-}
-
-func getFormValue(p *multipart.Part) string {
- var b bytes.Buffer
- io.CopyN(&b, p, int64(1<<20)) // Copy max: 1 MiB
- return b.String()
-}
-
-func handleUploads(r *http.Request) (fileInfos []*FileInfo) {
- fileInfos = make([]*FileInfo, 0)
- mr, err := r.MultipartReader()
- check(err)
- r.Form, err = url.ParseQuery(r.URL.RawQuery)
- check(err)
- part, err := mr.NextPart()
- for err == nil {
- if name := part.FormName(); name != "" {
- if part.FileName() != "" {
- fileInfos = append(fileInfos, handleUpload(r, part))
- } else {
- r.Form[name] = append(r.Form[name], getFormValue(part))
- }
- }
- part, err = mr.NextPart()
- }
- return
-}
-
-func get(w http.ResponseWriter, r *http.Request) {
- if r.URL.Path == "/" {
- http.Redirect(w, r, WEBSITE, http.StatusFound)
- return
- }
- parts := strings.Split(r.URL.Path, "/")
- if len(parts) == 3 {
- if key := parts[1]; key != "" {
- blobKey := appengine.BlobKey(key)
- bi, err := blobstore.Stat(appengine.NewContext(r), blobKey)
- if err == nil {
- w.Header().Add("X-Content-Type-Options", "nosniff")
- if !imageTypes.MatchString(bi.ContentType) {
- w.Header().Add("Content-Type", "application/octet-stream")
- w.Header().Add(
- "Content-Disposition",
- fmt.Sprintf("attachment; filename=\"%s\"", parts[2]),
- )
- }
- w.Header().Add(
- "Cache-Control",
- fmt.Sprintf("public,max-age=%d", EXPIRATION_TIME),
- )
- blobstore.Send(w, blobKey)
- return
- }
- }
- }
- http.Error(w, "404 Not Found", http.StatusNotFound)
-}
-
-func post(w http.ResponseWriter, r *http.Request) {
- result := make(map[string][]*FileInfo, 1)
- result["files"] = handleUploads(r)
- b, err := json.Marshal(result)
- check(err)
- if redirect := r.FormValue("redirect"); redirect != "" {
- if strings.Contains(redirect, "%s") {
- redirect = fmt.Sprintf(
- redirect,
- escape(string(b)),
- )
- }
- http.Redirect(w, r, redirect, http.StatusFound)
- return
- }
- w.Header().Set("Cache-Control", "no-cache")
- jsonType := "application/json"
- if strings.Index(r.Header.Get("Accept"), jsonType) != -1 {
- w.Header().Set("Content-Type", jsonType)
- }
- fmt.Fprintln(w, string(b))
-}
-
-func delete(w http.ResponseWriter, r *http.Request) {
- parts := strings.Split(r.URL.Path, "/")
- if len(parts) != 3 {
- return
- }
- result := make(map[string]bool, 1)
- if key := parts[1]; key != "" {
- c := appengine.NewContext(r)
- blobKey := appengine.BlobKey(key)
- err := blobstore.Delete(c, blobKey)
- check(err)
- err = image.DeleteServingURL(c, blobKey)
- check(err)
- result[key] = true
- }
- jsonType := "application/json"
- if strings.Index(r.Header.Get("Accept"), jsonType) != -1 {
- w.Header().Set("Content-Type", jsonType)
- }
- b, err := json.Marshal(result)
- check(err)
- fmt.Fprintln(w, string(b))
-}
-
-func handle(w http.ResponseWriter, r *http.Request) {
- params, err := url.ParseQuery(r.URL.RawQuery)
- check(err)
- w.Header().Add("Access-Control-Allow-Origin", "*")
- w.Header().Add(
- "Access-Control-Allow-Methods",
- "OPTIONS, HEAD, GET, POST, PUT, DELETE",
- )
- w.Header().Add(
- "Access-Control-Allow-Headers",
- "Content-Type, Content-Range, Content-Disposition",
- )
- switch r.Method {
- case "OPTIONS":
- case "HEAD":
- case "GET":
- get(w, r)
- case "POST":
- if len(params["_method"]) > 0 && params["_method"][0] == "DELETE" {
- delete(w, r)
- } else {
- post(w, r)
- }
- case "DELETE":
- delete(w, r)
- default:
- http.Error(w, "501 Not Implemented", http.StatusNotImplemented)
- }
-}
-
-func init() {
- http.HandleFunc("/", handle)
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-09 23:03:45 +0000