* BIG shuffle:

[citadel.git] / webcit / downloads.c

diff --git a/webcit/downloads.c b/webcit/downloads.c
index d980ce1d330b674e33d08f4365a9311e6bf21fe0..23e1ccd23aae70fac1bfd657fb7d7350672389de 100644 (file)
--- a/webcit/downloads.c
+++ b/webcit/downloads.c
@@ -426,8 +426,8 @@ void upload_file(void)
 {
        const char *MimeType;
        char buf[1024];
-       size_t bytes_transmitted = 0;
-       size_t blocksize;
+       long bytes_transmitted = 0;
+       long blocksize;
        struct wcsession *WCC = WC;     /* stack this for faster access (WC is a function) */
 
        MimeType = GuessMimeType(WCC->upload, WCC->upload_length); 
@@ -463,10 +463,61 @@ void upload_file(void)
        display_room_directory();
 }
 
+
+
+/*
+ * When the browser requests an image file from the Citadel server,
+ * this function is called to transmit it.
+ */
+void output_image()
+{
+       struct wcsession *WCC = WC;
+       char buf[SIZ];
+       off_t bytes;
+       const char *MimeType;
+       
+       serv_printf("OIMG %s|%s", bstr("name"), bstr("parm"));
+       serv_getln(buf, sizeof buf);
+       if (buf[0] == '2') {
+               bytes = extract_long(&buf[4], 0);
+
+               /** Read it from the server */
+               
+               if (read_server_binary(WCC->WBuf, bytes) > 0) {
+                       serv_puts("CLOS");
+                       serv_getln(buf, sizeof buf);
+               
+                       MimeType = GuessMimeType (ChrPtr(WCC->WBuf), StrLength(WCC->WBuf));
+                       /** Write it to the browser */
+                       if (!IsEmptyStr(MimeType))
+                       {
+                               http_transmit_thing(MimeType, 0);
+                               return;
+                       }
+               }
+               /* hm... unknown mimetype? fallback to blank gif */
+       } 
+
+       
+       /*
+        * Instead of an ugly 404, send a 1x1 transparent GIF
+        * when there's no such image on the server.
+        */
+       char blank_gif[SIZ];
+       snprintf (blank_gif, SIZ, "%s%s", static_dirs[0], "/blank.gif");
+       output_static(blank_gif);
+}
+
+
+
+
 void 
 InitModule_DOWNLOAD
 (void)
 {
+       WebcitAddUrlHandler(HKEY("image"), output_image, 0);
+       WebcitAddUrlHandler(HKEY("display_mime_icon"), display_mime_icon , 0);
+
        WebcitAddUrlHandler(HKEY("display_room_directory"), display_room_directory, 0);
        WebcitAddUrlHandler(HKEY("display_pictureview"), display_pictureview, 0);
        WebcitAddUrlHandler(HKEY("download_file"), download_file, NEED_URL);