func (p *proxy) serveExistingFile(w http.ResponseWriter, r *http.Request) bool {
reqFile := r.URL.Path[1:]
cachedFile := p.cacheDir + reqFile
if common.FileExists(cachedFile) {
f, err := os.Open(cachedFile)
if err != nil {
if false == os.IsNotExist(err) {
common.InfoErr("Cannot open %q because %s\n", cachedFile, err.Error())
}
return false
}
defer func() {
if err := f.Close(); err != nil {
common.InfoErr("Failed to close file %q with Error %s\n", reqFile, err)
}
}()
addHeaders(filepath.Ext(reqFile), cacheUntil, w)
if _, err := io.Copy(w, f); err != nil {
common.InfoErr("Error copying file content to http response: %s with file %q", err, reqFile)
return false
}
return true
}
return false
}
func newHandle(ctx *cli.Context) *handle {
csvFile := ctx.String("csv")
var rec [][]string
if csvFile != "" {
rec = record.GetCSVContent(csvFile)
}
h := &handle{
proxy: newProxy(ctx),
fileMap: make(map[string]record.Record),
pattern: ctx.String("img-pattern"),
}
h.Lock()
defer h.Unlock()
if vif := ctx.String("img-config"); vif != "" {
var err error
if h.virtualImages, err = parseVirtualImageConfigFile(vif); err != nil {
common.InfoErr("File %s contains error:\n%s\n", vif, err)
}
}
h.fileMap["favicon.ico"] = record.NewRecordFields("icon", "favicon.ico", 16, 16)
for _, row := range rec {
rec, err := record.NewRecord(h.pattern, row...)
if err != nil {
common.InfoErr("File %s contains error: %s\n", csvFile, err)
}
rec.Path = ctx.String("url-prefix") + rec.Path
h.fileMap[rec.Path] = rec
}
h.length = len(rec)
return h
}
func (w *traverse) close() {
w.workerStop <- struct{}{}
close(w.workerRec)
if err := w.outW.Close(); err != nil {
common.InfoErr("GZIP close error: %s\n", err)
}
if err := w.outF.Close(); err != nil {
common.InfoErr("File close error: %s\n", err)
}
w.bar.Finish()
fmt.Fprintf(w.cliWriter, "Wrote to file: %s\n", w.outfile)
}
func (h *handle) rootJSON(w http.ResponseWriter, r *http.Request) {
w.Header().Set(ContentType, ApplicationJSONCharsetUTF8)
h.RLock()
//if err := json.NewEncoder(w).Encode(h.virtualImages); err != nil {
// common.InfoErr("Failed to write JSON encoded virtual image configuration with error: %s\n", err)
//}
for _, rec := range h.fileMap {
if err := rec.ToJSON(w); err != nil {
common.InfoErr("Failed to write JSON with error: %s\n", err)
}
if _, err := w.Write(brByte); err != nil {
common.InfoErr("Failed to write JSON with error: %s\n", err)
}
}
h.RUnlock()
}
func getImageDimension(imagePath string) (int, int) {
file, err := os.Open(imagePath)
if err != nil {
common.InfoErr("Cannot open image: %s\n", err)
return 0, 0
}
image, _, err := image.DecodeConfig(file)
if err != nil {
common.InfoErr("Image %s decoding error: %s\n", imagePath, err)
return 0, 0
}
if err := file.Close(); err != nil {
common.InfoErr("Close error: %s: %s\n", imagePath, err)
return 0, 0
}
return image.Width, image.Height
}
// post or get request
// $ curl --data "file=media/catalog/product/1/2/120---microsoft-natural-ergonomic-keyboard-4000.jpg" http://127.0.0.1:4711/fileDetails
// and returns:
// {"Path":"media/catalog/product/1/2/120---microsoft-natural-ergonomic-keyboard-4000.jpg","ModTime":"2014-02-16T03:27:45+01:00","Width":5184,"Height":3456}
func (h *handle) fileDetails(w http.ResponseWriter, r *http.Request) {
filePath := r.FormValue("file")
if filePath == "" {
http.NotFound(w, r)
return
}
h.RLock()
defer h.RUnlock()
rec, ok := h.fileMap[filePath]
if !ok {
common.InfoErr("%s not found in CSV file\n", filePath)
http.NotFound(w, r)
return
}
w.Header().Set(ContentType, ApplicationJSONCharsetUTF8)
if err := rec.ToJSON(w); err != nil {
common.InfoErr("Failed to write JSON with error: %s\n", err)
}
}
func (r Record) CreateContent(f string, w io.Writer) {
switch r.ext {
case ".png":
if err := png.Encode(w, r.generateImage()); err != nil {
common.InfoErr("Failed to create PNG file %s with error: %s\n", f, err)
}
case ".jpg", ".jpeg":
// big file size? reason why is here: https://www.reddit.com/r/golang/comments/3kn1zp/filesize_of_jpegencode/
if err := jpeg.Encode(w, r.generateImage(), &jpeg.Options{Quality: 75}); err != nil {
common.InfoErr("Failed to create JPEG file %s with error: %s\n", f, err)
}
case ".gif", ".ico":
if err := gif.Encode(w, r.generateImage(), nil); err != nil {
common.InfoErr("Failed to create GIF file %s with error: %s\n", f, err)
}
default:
if _, err := w.Write(nil); err != nil {
common.InfoErr("Failed to write file %s with error: %s\n", f, err)
}
}
}
func (r Record) CreateFile(basePath string) error {
d, f := r.getDirFile(basePath)
if err := os.MkdirAll(d, DirPerm); err != nil {
common.UsageAndExit("Failed to create directory: %s with error: %s", d, err)
}
file, err := os.Create(d + f)
if err != nil {
return fmt.Errorf("Failed to create file %s%s", d, f)
}
defer func() {
if err := file.Close(); err != nil {
common.InfoErr("Failed to close file %s with error: %s\n", d+f, err)
}
}()
if err := os.Chtimes(d+f, r.ModTime, r.ModTime); err != nil {
common.InfoErr("Failed to change time for file %s with error: %s\n", d+f, err)
}
r.CreateContent(f, file)
return nil
}
func (p *proxy) serveAndSaveRemoteFile(w http.ResponseWriter, r *http.Request) bool {
reqFile := r.URL.Path[1:]
cachedFile := p.cacheDir + reqFile
remoteFile := p.url + reqFile
resp, err := http.Get(remoteFile)
defer func() {
if resp.Body != nil {
if err := resp.Body.Close(); err != nil {
common.UsageAndExit("Failed to close URL %q with error: %s", remoteFile, err)
}
}
}()
if err != nil {
common.InfoErr("Failed to download %q with error: %s\n", remoteFile, err)
return false
}
if resp.StatusCode != http.StatusOK {
common.InfoErr("Failed to download %q with Code: %q\n", remoteFile, http.StatusText(resp.StatusCode))
return false
}
if dcf := filepath.Dir(cachedFile); false == common.IsDir(dcf) {
if err := os.MkdirAll(dcf, 0755); err != nil {
common.InfoErr("Failed to create cache folder %q with Code: %s\n", dcf, err)
return false
}
}
fw, err := os.OpenFile(cachedFile, os.O_CREATE|os.O_TRUNC|os.O_WRONLY, 0644)
if err != nil {
common.InfoErr("Failed to open write file %q for URL %q with Error: %s\n", cachedFile, remoteFile, err)
return false
}
defer func() {
if err := fw.Close(); err != nil {
common.InfoErr("Failed to close write file %q from URL %q with Error %s\n", cachedFile, remoteFile, err)
}
}()
addHeaders(filepath.Ext(reqFile), cacheUntil, w)
mw := io.MultiWriter(w, fw)
if _, err := io.Copy(mw, io.LimitReader(resp.Body, maxHttpDownloadSize)); err != nil {
common.InfoErr("Failed to write to http response and/or file to disk: %q with error: %s. Max Size: %d KBytes\n", remoteFile, err, maxHttpDownloadSize/1024)
return false
}
return true
}
func (h *handle) rootHTML(w http.ResponseWriter, r *http.Request) {
h.RLock()
defer h.RUnlock()
w.Header().Set(ContentType, TextHTMLCharsetUTF8)
fmt.Fprint(w, `<html> <head><title>Mediamock Content Table</title></head> <body><table>`)
fmt.Fprint(w, `<thead><tr>
<th>ModTime</th>
<th nowrap>Width px</th>
<th nowrap>Height px</th>
<th>Link</th>
</tr></thead><tbody>`)
for path, vis := range h.virtualImages {
for _, vi := range vis {
_, err := fmt.Fprintf(w, `<tr>
<td>n/a</td>
<td>%d</td>
<td>%d</td>
<td><a href="%s" target="_blank">%s</a> Regex: %s</td>
</tr>`,
vi.Width,
vi.Height,
path, path, vi.regex,
)
if err != nil {
common.InfoErr("Failed to write HTML table with error: %s\n", err)
}
if _, err := w.Write(brByte); err != nil {
common.InfoErr("Failed to write brByte with error: %s\n", err)
}
}
}
var pathSlice = make(sort.StringSlice, len(h.fileMap))
var i int
for key, _ := range h.fileMap {
pathSlice[i] = key
i++
}
pathSlice.Sort()
for _, key := range pathSlice {
rec := h.fileMap[key]
_, err := fmt.Fprintf(w, `<tr>
<td>%s</td>
<td>%d</td>
<td>%d</td>
<td><a href="%s" target="_blank">%s</a></td>
</tr>`,
rec.ModTime,
rec.Width,
rec.Height,
rec.Path, rec.Path,
)
if err != nil {
common.InfoErr("Failed to write HTML table with error: %s\n", err)
}
if _, err := w.Write(brByte); err != nil {
common.InfoErr("Failed to write brByte with error: %s\n", err)
}
}
fmt.Fprint(w, `</tbody></table></body> </html>`)
}
