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author | Mario <mario@mariovavti.com> | 2021-10-08 12:24:19 +0000 |
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committer | Mario <mario@mariovavti.com> | 2021-10-08 12:24:19 +0000 |
commit | e6dac085cb1d601da1fc63bfd59d811612fa6ef4 (patch) | |
tree | f5b704b613c9c8d347857b4e7f8dd0b19cdd7df3 /vendor/blueimp/jquery-file-upload/server/gae-go/main.go | |
parent | f5f357060bf0ebcb0b8352519375953d993437e7 (diff) | |
download | volse-hubzilla-e6dac085cb1d601da1fc63bfd59d811612fa6ef4.tar.gz volse-hubzilla-e6dac085cb1d601da1fc63bfd59d811612fa6ef4.tar.bz2 volse-hubzilla-e6dac085cb1d601da1fc63bfd59d811612fa6ef4.zip |
update composer libs
Diffstat (limited to 'vendor/blueimp/jquery-file-upload/server/gae-go/main.go')
-rw-r--r-- | vendor/blueimp/jquery-file-upload/server/gae-go/main.go | 361 |
1 files changed, 0 insertions, 361 deletions
diff --git a/vendor/blueimp/jquery-file-upload/server/gae-go/main.go b/vendor/blueimp/jquery-file-upload/server/gae-go/main.go deleted file mode 100644 index a92d128c0..000000000 --- a/vendor/blueimp/jquery-file-upload/server/gae-go/main.go +++ /dev/null @@ -1,361 +0,0 @@ -/* - * jQuery File Upload Plugin GAE Go Example - * https://github.com/blueimp/jQuery-File-Upload - * - * Copyright 2011, Sebastian Tschan - * https://blueimp.net - * - * Licensed under the MIT license: - * https://opensource.org/licenses/MIT - */ - -package app - -import ( - "bufio" - "bytes" - "encoding/json" - "fmt" - "github.com/disintegration/gift" - "golang.org/x/net/context" - "google.golang.org/appengine" - "google.golang.org/appengine/memcache" - "hash/crc32" - "image" - "image/gif" - "image/jpeg" - "image/png" - "io" - "log" - "mime/multipart" - "net/http" - "net/url" - "path/filepath" - "regexp" - "strings" -) - -const ( - WEBSITE = "https://blueimp.github.io/jQuery-File-Upload/" - MIN_FILE_SIZE = 1 // bytes - // Max file size is memcache limit (1MB) minus key size minus overhead: - MAX_FILE_SIZE = 999000 // bytes - IMAGE_TYPES = "image/(gif|p?jpeg|(x-)?png)" - ACCEPT_FILE_TYPES = IMAGE_TYPES - THUMB_MAX_WIDTH = 80 - THUMB_MAX_HEIGHT = 80 - EXPIRATION_TIME = 300 // seconds - // If empty, only allow redirects to the referer protocol+host. - // Set to a regexp string for custom pattern matching: - REDIRECT_ALLOW_TARGET = "" -) - -var ( - imageTypes = regexp.MustCompile(IMAGE_TYPES) - acceptFileTypes = regexp.MustCompile(ACCEPT_FILE_TYPES) - thumbSuffix = "." + fmt.Sprint(THUMB_MAX_WIDTH) + "x" + - fmt.Sprint(THUMB_MAX_HEIGHT) -) - -func escape(s string) string { - return strings.Replace(url.QueryEscape(s), "+", "%20", -1) -} - -func extractKey(r *http.Request) string { - // Use RequestURI instead of r.URL.Path, as we need the encoded form: - path := strings.Split(r.RequestURI, "?")[0] - // Also adjust double encoded slashes: - return strings.Replace(path[1:], "%252F", "%2F", -1) -} - -func check(err error) { - if err != nil { - panic(err) - } -} - -type FileInfo struct { - Key string `json:"-"` - ThumbnailKey string `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 context.Context) { - u := &url.URL{ - Scheme: r.URL.Scheme, - Host: appengine.DefaultVersionHostname(c), - Path: "/", - } - uString := u.String() - fi.Url = uString + fi.Key - fi.DeleteUrl = fi.Url - fi.DeleteType = "DELETE" - if fi.ThumbnailKey != "" { - fi.ThumbnailUrl = uString + fi.ThumbnailKey - } -} - -func (fi *FileInfo) SetKey(checksum uint32) { - fi.Key = escape(string(fi.Type)) + "/" + - escape(fmt.Sprint(checksum)) + "/" + - escape(string(fi.Name)) -} - -func (fi *FileInfo) createThumb(buffer *bytes.Buffer, c context.Context) { - if imageTypes.MatchString(fi.Type) { - src, _, err := image.Decode(bytes.NewReader(buffer.Bytes())) - check(err) - filter := gift.New(gift.ResizeToFit( - THUMB_MAX_WIDTH, - THUMB_MAX_HEIGHT, - gift.LanczosResampling, - )) - dst := image.NewNRGBA(filter.Bounds(src.Bounds())) - filter.Draw(dst, src) - buffer.Reset() - bWriter := bufio.NewWriter(buffer) - switch fi.Type { - case "image/jpeg", "image/pjpeg": - err = jpeg.Encode(bWriter, dst, nil) - case "image/gif": - err = gif.Encode(bWriter, dst, nil) - default: - err = png.Encode(bWriter, dst) - } - check(err) - bWriter.Flush() - thumbnailKey := fi.Key + thumbSuffix + filepath.Ext(fi.Name) - item := &memcache.Item{ - Key: thumbnailKey, - Value: buffer.Bytes(), - } - err = memcache.Set(c, item) - check(err) - fi.ThumbnailKey = thumbnailKey - } -} - -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() - } - }() - var buffer bytes.Buffer - hash := crc32.NewIEEE() - mw := io.MultiWriter(&buffer, hash) - lr := &io.LimitedReader{R: p, N: MAX_FILE_SIZE + 1} - _, err := io.Copy(mw, lr) - check(err) - fi.Size = MAX_FILE_SIZE + 1 - lr.N - if !fi.ValidateSize() { - return - } - fi.SetKey(hash.Sum32()) - item := &memcache.Item{ - Key: fi.Key, - Value: buffer.Bytes(), - } - context := appengine.NewContext(r) - err = memcache.Set(context, item) - check(err) - fi.createThumb(&buffer, context) - fi.CreateUrls(r, context) - 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 validateRedirect(r *http.Request, redirect string) bool { - if redirect != "" { - var redirectAllowTarget *regexp.Regexp - if REDIRECT_ALLOW_TARGET != "" { - redirectAllowTarget = regexp.MustCompile(REDIRECT_ALLOW_TARGET) - } else { - referer := r.Referer() - if referer == "" { - return false - } - refererUrl, err := url.Parse(referer) - if err != nil { - return false - } - redirectAllowTarget = regexp.MustCompile("^" + regexp.QuoteMeta( - refererUrl.Scheme+"://"+refererUrl.Host+"/", - )) - } - return redirectAllowTarget.MatchString(redirect) - } - return false -} - -func get(w http.ResponseWriter, r *http.Request) { - if r.URL.Path == "/" { - http.Redirect(w, r, WEBSITE, http.StatusFound) - return - } - // Use RequestURI instead of r.URL.Path, as we need the encoded form: - key := extractKey(r) - parts := strings.Split(key, "/") - if len(parts) == 3 { - context := appengine.NewContext(r) - item, err := memcache.Get(context, key) - if err == nil { - w.Header().Add("X-Content-Type-Options", "nosniff") - contentType, _ := url.QueryUnescape(parts[0]) - if !imageTypes.MatchString(contentType) { - contentType = "application/octet-stream" - } - w.Header().Add("Content-Type", contentType) - w.Header().Add( - "Cache-Control", - fmt.Sprintf("public,max-age=%d", EXPIRATION_TIME), - ) - w.Write(item.Value) - 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"); validateRedirect(r, 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) { - key := extractKey(r) - parts := strings.Split(key, "/") - if len(parts) == 3 { - result := make(map[string]bool, 1) - context := appengine.NewContext(r) - err := memcache.Delete(context, key) - if err == nil { - result[key] = true - contentType, _ := url.QueryUnescape(parts[0]) - if imageTypes.MatchString(contentType) { - thumbnailKey := key + thumbSuffix + filepath.Ext(parts[2]) - err := memcache.Delete(context, thumbnailKey) - if err == nil { - result[thumbnailKey] = true - } - } - } - w.Header().Set("Content-Type", "application/json") - b, err := json.Marshal(result) - check(err) - fmt.Fprintln(w, string(b)) - } else { - http.Error(w, "405 Method not allowed", http.StatusMethodNotAllowed) - } -} - -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, DELETE", - ) - w.Header().Add( - "Access-Control-Allow-Headers", - "Content-Type, Content-Range, Content-Disposition", - ) - switch r.Method { - case "OPTIONS", "HEAD": - return - 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) -} |