webcit/graphics.c

   1 /*
   2  * Handles HTTP upload of graphics files into the system.
   3  *
   4  * Copyright (c) 1996-2016 by the citadel.org team
   5  *
   6  * This program is open source software.  You can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License, version 3.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  */
  14
  15 #include "webcit.h"
  16
  17 extern void output_static(const char* What);
  18
  19
  20 // display the picture (icon, photo, whatever) associated with the current room
  21 void display_roompic(void) {
  22         off_t bytes;
  23         StrBuf *Buf = NewStrBuf();
  24         serv_printf("DLRI");
  25         StrBuf_ServGetln(Buf);
  26         if (GetServerStatus(Buf, NULL) == 6) {
  27                 StrBufCutLeft(Buf, 4);
  28                 bytes = StrBufExtract_long(Buf, 0, '|');
  29                 StrBuf *content_type = NewStrBuf();
  30                 StrBufExtract_token(content_type, Buf, 3, '|');
  31                 WC->WBuf = NewStrBuf();
  32                 StrBuf_ServGetBLOBBuffered(WC->WBuf, bytes);
  33                 http_transmit_thing(ChrPtr(content_type), 0);
  34                 FreeStrBuf(&content_type);
  35         }
  36         else {
  37                 output_error_pic("", "");
  38         }
  39         FreeStrBuf(&Buf);
  40 }
  41
  42
  43 // upload the picture (icon, photo, whatever) associated with the current room
  44 void common_code_for_editroompic_and_editpic(char *servcmd)
  45 {
  46         if (havebstr("cancel_button")) {
  47                 AppendImportantMessage(_("Graphics upload has been cancelled."), -1);
  48                 display_main_menu();
  49                 return;
  50         }
  51
  52         if (WC->upload_length == 0) {
  53                 AppendImportantMessage(_("You didn't upload a file."), -1);
  54                 display_main_menu();
  55                 return;
  56         }
  57
  58         serv_printf("%s %ld|%s", servcmd, (long)WC->upload_length, GuessMimeType(ChrPtr(WC->upload), WC->upload_length));
  59         StrBuf *Line = NewStrBuf();
  60         StrBuf_ServGetln(Line);
  61         if (GetServerStatusMsg(Line, NULL, 0, 0) == 7) {
  62                 serv_write(ChrPtr(WC->upload), WC->upload_length);
  63                 display_success(ChrPtr(Line) + 4);
  64         }
  65         else {
  66                 AppendImportantMessage((ChrPtr(Line) + 4), -1);
  67                 display_main_menu();
  68         }
  69         FreeStrBuf(&Line);
  70 }
  71
  72
  73 // upload the picture (icon, photo, whatever) associated with the current room
  74 void editroompic(void)
  75 {
  76         common_code_for_editroompic_and_editpic("ULRI");
  77 }
  78
  79
  80 // upload the picture (icon, photo, whatever) associated with the current user
  81 void editpic(void)
  82 {
  83         common_code_for_editroompic_and_editpic("ULUI");
  84 }
  85
  86
  87 // display the screen for uploading graphics to the server
  88 void display_graphics_upload(char *filename)
  89 {
  90         StrBuf *Line;
  91
  92         syslog(LOG_DEBUG, "display_graphics_upload(%s)", filename);
  93
  94         Line = NewStrBuf();
  95         serv_printf("UIMG 0||%s", filename);
  96         StrBuf_ServGetln(Line);
  97         if (GetServerStatusMsg(Line, NULL, 1, 2) != 2) {
  98                 display_main_menu();
  99                 return;
 100         }
 101         else
 102         {
 103                 output_headers(1, 0, 0, 0, 1, 0);
 104                 do_template("files_graphicsupload");
 105                 end_burst();
 106         }
 107         FreeStrBuf(&Line);
 108 }
 109
 110
 111 void do_graphics_upload(char *filename)
 112 {
 113         StrBuf *Line;
 114         const char *MimeType;
 115         wcsession *WCC = WC;
 116         int bytes_remaining;
 117         int pos = 0;
 118         int thisblock;
 119         bytes_remaining = WCC->upload_length;
 120
 121         if (havebstr("cancel_button")) {
 122                 AppendImportantMessage(_("Graphics upload has been cancelled."), -1);
 123                 display_main_menu();
 124                 return;
 125         }
 126
 127         if (WCC->upload_length == 0) {
 128                 AppendImportantMessage(_("You didn't upload a file."), -1);
 129                 display_main_menu();
 130                 return;
 131         }
 132
 133         MimeType = GuessMimeType(ChrPtr(WCC->upload), bytes_remaining);
 134         serv_printf("UIMG 1|%s|%s", MimeType, filename);
 135
 136         Line = NewStrBuf();
 137         StrBuf_ServGetln(Line);
 138         if (GetServerStatusMsg(Line, NULL, 1, 2) != 2) {
 139                 display_main_menu();
 140                 FreeStrBuf(&Line);
 141                 return;
 142         }
 143         while (bytes_remaining) {
 144                 thisblock = ((bytes_remaining > 4096) ? 4096 : bytes_remaining);
 145                 serv_printf("WRIT %d", thisblock);
 146                 StrBuf_ServGetln(Line);
 147                 if (GetServerStatusMsg(Line, NULL, 1, 7) != 7) {
 148                         serv_puts("UCLS 0");
 149                         StrBuf_ServGetln(Line);
 150                         display_main_menu();
 151                         FreeStrBuf(&Line);
 152                         return;
 153                 }
 154                 thisblock = extract_int(ChrPtr(Line) +4, 0);
 155                 serv_write(&ChrPtr(WCC->upload)[pos], thisblock);
 156                 pos += thisblock;
 157                 bytes_remaining -= thisblock;
 158         }
 159
 160         serv_puts("UCLS 1");
 161         StrBuf_ServGetln(Line);
 162         if (*ChrPtr(Line) != 'x') {
 163                 display_success(ChrPtr(Line) + 4);
 164
 165         }
 166         FreeStrBuf(&Line);
 167
 168 }
 169
 170
 171 void edithellopic(void)    { do_graphics_upload("hello"); }
 172 void editgoodbyepic(void) { do_graphics_upload("UIMG 1|%s|goodbye"); }
 173
 174 /* The users photo display / upload facility */
 175 void display_editpic(void) {
 176         putbstr("__PICDESC", NewStrBufPlain(_("your photo"), -1));
 177         putbstr("__UPLURL", NewStrBufPlain(HKEY("editpic")));
 178         display_graphics_upload("editpic");
 179 }
 180 /* room picture dispay / upload facility */
 181 void display_editroompic(void) {
 182         putbstr("__PICDESC", NewStrBufPlain(_("the icon for this room"), -1));
 183         putbstr("__UPLURL", NewStrBufPlain(HKEY("editroompic")));
 184         display_graphics_upload("editroompic");
 185 }
 186
 187 /* the greetingpage hello pic */
 188 void display_edithello(void) {
 189         putbstr("__WHICHPIC", NewStrBufPlain(HKEY("hello")));
 190         putbstr("__PICDESC", NewStrBufPlain(_("graphics to be displayed on the login screen"), -1));
 191         putbstr("__UPLURL", NewStrBufPlain(HKEY("edithellopic")));
 192         display_graphics_upload("edithellopic");
 193 }
 194
 195 /* the logoff banner */
 196 void display_editgoodbyepic(void) {
 197         putbstr("__WHICHPIC", NewStrBufPlain(HKEY("UIMG 0|%s|goodbye")));
 198         putbstr("__PICDESC", NewStrBufPlain(_("the Logoff banner picture"), -1));
 199         putbstr("__UPLURL", NewStrBufPlain(HKEY("editgoodbyepic")));
 200         display_graphics_upload("editgoodbyepic");
 201 }
 202
 203
 204 void
 205 InitModule_GRAPHICS
 206 (void)
 207 {
 208         WebcitAddUrlHandler(HKEY("display_editpic"), "", 0, display_editpic, 0);
 209         WebcitAddUrlHandler(HKEY("editpic"), "", 0, editpic, 0);
 210         WebcitAddUrlHandler(HKEY("display_editroompic"), "", 0, display_editroompic, 0);
 211         WebcitAddUrlHandler(HKEY("editroompic"), "", 0, editroompic, 0);
 212         WebcitAddUrlHandler(HKEY("display_edithello"), "", 0, display_edithello, 0);
 213         WebcitAddUrlHandler(HKEY("edithellopic"), "", 0, edithellopic, 0);
 214         WebcitAddUrlHandler(HKEY("display_editgoodbye"), "", 0, display_editgoodbyepic, 0);
 215         WebcitAddUrlHandler(HKEY("editgoodbyepic"), "", 0, editgoodbyepic, 0);
 216         WebcitAddUrlHandler(HKEY("roompic"), "", 0, display_roompic, 0);
 217 }