webcit/graphics.c

   1 // Handles HTTP upload of graphics files into the system.
   2 //
   3 // Copyright (c) 1996-2022 by the citadel.org team
   4 //
   5 // This program is open source software.  You can redistribute it and/or
   6 // modify it under the terms of the GNU General Public License, version 3.
   7 //
   8 // This program is distributed in the hope that it will be useful,
   9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11 // GNU General Public License for more details.
  12
  13 #include "webcit.h"
  14
  15 extern void output_static(const char* What);
  16
  17
  18 // display the picture (icon, photo, whatever) associated with the current room
  19 void display_roompic(void) {
  20         off_t bytes;
  21         StrBuf *Buf = NewStrBuf();
  22         serv_printf("DLRI");
  23         StrBuf_ServGetln(Buf);
  24         if (GetServerStatus(Buf, NULL) == 6) {
  25                 StrBufCutLeft(Buf, 4);
  26                 bytes = StrBufExtract_long(Buf, 0, '|');
  27                 StrBuf *content_type = NewStrBuf();
  28                 StrBufExtract_token(content_type, Buf, 3, '|');
  29                 WC->WBuf = NewStrBuf();
  30                 StrBuf_ServGetBLOBBuffered(WC->WBuf, bytes);
  31                 http_transmit_thing(ChrPtr(content_type), 0);
  32                 FreeStrBuf(&content_type);
  33         }
  34         else {
  35                 output_error_pic("", "");
  36         }
  37         FreeStrBuf(&Buf);
  38 }
  39
  40
  41 // upload the picture (icon, photo, whatever) associated with the current room
  42 void common_code_for_editroompic_and_editpic(char *servcmd) {
  43         if (havebstr("cancel_button")) {
  44                 AppendImportantMessage(_("Graphics upload has been cancelled."), -1);
  45                 display_main_menu();
  46                 return;
  47         }
  48
  49         if (WC->upload_length == 0) {
  50                 AppendImportantMessage(_("You didn't upload a file."), -1);
  51                 display_main_menu();
  52                 return;
  53         }
  54
  55         serv_printf("%s %ld|%s", servcmd, (long)WC->upload_length, GuessMimeType(ChrPtr(WC->upload), WC->upload_length));
  56         StrBuf *Line = NewStrBuf();
  57         StrBuf_ServGetln(Line);
  58         if (GetServerStatusMsg(Line, NULL, 0, 0) == 7) {
  59                 serv_write(ChrPtr(WC->upload), WC->upload_length);
  60                 display_success(ChrPtr(Line) + 4);
  61         }
  62         else {
  63                 AppendImportantMessage((ChrPtr(Line) + 4), -1);
  64                 display_main_menu();
  65         }
  66         FreeStrBuf(&Line);
  67 }
  68
  69
  70 // upload the picture (icon, photo, whatever) associated with the current room
  71 void editroompic(void) {
  72         common_code_for_editroompic_and_editpic("ULRI");
  73 }
  74
  75
  76 // upload the picture (icon, photo, whatever) associated with the current user
  77 void editpic(void) {
  78         common_code_for_editroompic_and_editpic("ULUI");
  79 }
  80
  81
  82 // display the screen for uploading graphics to the server
  83 void display_graphics_upload(char *filename) {
  84         output_headers(1, 0, 0, 0, 1, 0);
  85         do_template("files_graphicsupload");
  86         end_burst();
  87 }
  88
  89
  90 void do_graphics_upload(char *filename) {
  91         StrBuf *Line;
  92         const char *MimeType;
  93         wcsession *WCC = WC;
  94         int bytes_remaining;
  95         int pos = 0;
  96         int thisblock;
  97         bytes_remaining = WCC->upload_length;
  98
  99         if (havebstr("cancel_button")) {
 100                 AppendImportantMessage(_("Graphics upload has been cancelled."), -1);
 101                 display_main_menu();
 102                 return;
 103         }
 104
 105         if (WCC->upload_length == 0) {
 106                 AppendImportantMessage(_("You didn't upload a file."), -1);
 107                 display_main_menu();
 108                 return;
 109         }
 110
 111         MimeType = GuessMimeType(ChrPtr(WCC->upload), bytes_remaining);
 112         serv_printf("UIMG 1|%s|%s", MimeType, filename);
 113
 114         Line = NewStrBuf();
 115         StrBuf_ServGetln(Line);
 116         if (GetServerStatusMsg(Line, NULL, 1, 2) != 2) {
 117                 display_main_menu();
 118                 FreeStrBuf(&Line);
 119                 return;
 120         }
 121         while (bytes_remaining) {
 122                 thisblock = ((bytes_remaining > 4096) ? 4096 : bytes_remaining);
 123                 serv_printf("WRIT %d", thisblock);
 124                 StrBuf_ServGetln(Line);
 125                 if (GetServerStatusMsg(Line, NULL, 1, 7) != 7) {
 126                         serv_puts("UCLS 0");
 127                         StrBuf_ServGetln(Line);
 128                         display_main_menu();
 129                         FreeStrBuf(&Line);
 130                         return;
 131                 }
 132                 thisblock = extract_int(ChrPtr(Line) +4, 0);
 133                 serv_write(&ChrPtr(WCC->upload)[pos], thisblock);
 134                 pos += thisblock;
 135                 bytes_remaining -= thisblock;
 136         }
 137
 138         serv_puts("UCLS 1");
 139         StrBuf_ServGetln(Line);
 140         if (*ChrPtr(Line) != 'x') {
 141                 display_success(ChrPtr(Line) + 4);
 142
 143         }
 144         FreeStrBuf(&Line);
 145
 146 }
 147
 148
 149 void edithellopic(void)    { do_graphics_upload("hello"); }
 150 void editgoodbyepic(void) { do_graphics_upload("UIMG 1|%s|goodbye"); }
 151
 152 // The user's photo display / upload facility
 153 void display_editpic(void) {
 154         putbstr("__PICDESC", NewStrBufPlain(_("your photo"), -1));
 155         putbstr("__UPLURL", NewStrBufPlain(HKEY("editpic")));
 156         display_graphics_upload("editpic");
 157 }
 158
 159 // room picture dispay / upload facility
 160 void display_editroompic(void) {
 161         putbstr("__PICDESC", NewStrBufPlain(_("the icon for this room"), -1));
 162         putbstr("__UPLURL", NewStrBufPlain(HKEY("editroompic")));
 163         display_graphics_upload("editroompic");
 164 }
 165
 166 // the login page graphics
 167 void display_edithello(void) {
 168         putbstr("__WHICHPIC", NewStrBufPlain(HKEY("hello")));
 169         putbstr("__PICDESC", NewStrBufPlain(_("graphics to be displayed on the login screen"), -1));
 170         putbstr("__UPLURL", NewStrBufPlain(HKEY("edithellopic")));
 171         display_graphics_upload("edithellopic");
 172 }
 173
 174 // the logoff banner
 175 void display_editgoodbyepic(void) {
 176         putbstr("__WHICHPIC", NewStrBufPlain(HKEY("UIMG 0|%s|goodbye")));
 177         putbstr("__PICDESC", NewStrBufPlain(_("the Logoff banner picture"), -1));
 178         putbstr("__UPLURL", NewStrBufPlain(HKEY("editgoodbyepic")));
 179         display_graphics_upload("editgoodbyepic");
 180 }
 181
 182
 183 void
 184 InitModule_GRAPHICS
 185 (void)
 186 {
 187         WebcitAddUrlHandler(HKEY("display_editpic"), "", 0, display_editpic, 0);
 188         WebcitAddUrlHandler(HKEY("editpic"), "", 0, editpic, 0);
 189         WebcitAddUrlHandler(HKEY("display_editroompic"), "", 0, display_editroompic, 0);
 190         WebcitAddUrlHandler(HKEY("editroompic"), "", 0, editroompic, 0);
 191         WebcitAddUrlHandler(HKEY("display_edithello"), "", 0, display_edithello, 0);
 192         WebcitAddUrlHandler(HKEY("edithellopic"), "", 0, edithellopic, 0);
 193         WebcitAddUrlHandler(HKEY("display_editgoodbye"), "", 0, display_editgoodbyepic, 0);
 194         WebcitAddUrlHandler(HKEY("editgoodbyepic"), "", 0, editgoodbyepic, 0);
 195         WebcitAddUrlHandler(HKEY("roompic"), "", 0, display_roompic, 0);
 196 }