webcit/graphics.c

   1 /*
   2  * $Id$
   3  *
   4  * Handles HTTP upload of graphics files into the system.
   5  */
   6
   7 #include <ctype.h>
   8 #include <stdlib.h>
   9 #include <unistd.h>
  10 #include <stdio.h>
  11 #include <fcntl.h>
  12 #include <signal.h>
  13 #include <sys/types.h>
  14 #include <sys/wait.h>
  15 #include <sys/socket.h>
  16 #include <sys/time.h>
  17 #include <limits.h>
  18 #include <netinet/in.h>
  19 #include <netdb.h>
  20 #include <string.h>
  21 #include <pwd.h>
  22 #include <errno.h>
  23 #include <stdarg.h>
  24 #include <pthread.h>
  25 #include <signal.h>
  26 #include "webcit.h"
  27
  28 void display_graphics_upload(char *description, char *check_cmd, char *uplurl)
  29 {
  30         char buf[SIZ];
  31
  32         serv_puts(check_cmd);
  33         serv_getln(buf, sizeof buf);
  34         if (buf[0] != '2') {
  35                 strcpy(WC->ImportantMessage, &buf[4]);
  36                 display_main_menu();
  37                 return;
  38         }
  39         output_headers(1, 1, 0, 0, 0, 0, 0);
  40
  41         output_headers(1, 1, 2, 0, 0, 0, 0);
  42         wprintf("<div id=\"banner\">\n"
  43                 "<TABLE WIDTH=100%% BORDER=0 BGCOLOR=\"#444455\"><TR><TD>"
  44                 "<SPAN CLASS=\"titlebar\">Image upload</SPAN>"
  45                 "</TD></TR></TABLE>\n"
  46                 "</div>\n<div id=\"content\">\n"
  47         );
  48
  49         wprintf("<div id=\"fix_scrollbar_bug\">"
  50                 "<table border=0 width=100%% bgcolor=\"#ffffff\"><tr><td>\n");
  51
  52         wprintf("<CENTER>\n");
  53
  54         wprintf("<FORM ENCTYPE=\"multipart/form-data\" ACTION=\"%s\" "
  55                 "METHOD=\"POST\" NAME=\"graphicsupload\">\n", uplurl);
  56
  57         wprintf("<INPUT TYPE=\"hidden\" NAME=\"which_room\" VALUE=\"");
  58         urlescputs(bstr("which_room"));
  59         wprintf("\">\n");
  60
  61         wprintf("You can upload any image directly from your computer,\n");
  62         wprintf("as long as it is in GIF format (JPEG, PNG, etc. won't\n");
  63         wprintf("work).<br /><br />\n");
  64
  65         wprintf("Please select a file to upload:<br /><br />\n");
  66         wprintf("<INPUT TYPE=\"FILE\" NAME=\"filename\" SIZE=\"35\">\n");
  67         wprintf("<br /><br />");
  68         wprintf("<INPUT TYPE=\"SUBMIT\" NAME=\"sc\" VALUE=\"Upload\">\n");
  69         wprintf("&nbsp;");
  70         wprintf("<INPUT TYPE=\"RESET\" VALUE=\"Reset Form\">\n");
  71         wprintf("&nbsp;");
  72         wprintf("<INPUT TYPE=\"SUBMIT\" NAME=\"sc\" VALUE=\"Cancel\">\n");
  73         wprintf("</FORM>\n");
  74         wprintf("</CENTER>\n");
  75         wprintf("</td></tr></table></div>\n");
  76         wDumpContent(1);
  77 }
  78
  79 void do_graphics_upload(char *upl_cmd)
  80 {
  81         char buf[SIZ];
  82         int bytes_remaining;
  83         int pos = 0;
  84         int thisblock;
  85
  86         if (!strcasecmp(bstr("sc"), "Cancel")) {
  87                 strcpy(WC->ImportantMessage,
  88                         "Graphics upload cancelled.");
  89                 display_main_menu();
  90                 return;
  91         }
  92
  93         if (WC->upload_length == 0) {
  94                 strcpy(WC->ImportantMessage,
  95                         "You didn't upload a file.");
  96                 display_main_menu();
  97                 return;
  98         }
  99         serv_puts(upl_cmd);
 100         serv_getln(buf, sizeof buf);
 101         if (buf[0] != '2') {
 102                 strcpy(WC->ImportantMessage, &buf[4]);
 103                 display_main_menu();
 104                 return;
 105         }
 106         bytes_remaining = WC->upload_length;
 107         while (bytes_remaining) {
 108                 thisblock = ((bytes_remaining > 4096) ? 4096 : bytes_remaining);
 109                 serv_printf("WRIT %d", thisblock);
 110                 serv_getln(buf, sizeof buf);
 111                 if (buf[0] != '7') {
 112                         strcpy(WC->ImportantMessage, &buf[4]);
 113                         serv_puts("UCLS 0");
 114                         serv_getln(buf, sizeof buf);
 115                         display_main_menu();
 116                         return;
 117                 }
 118                 thisblock = extract_int(&buf[4], 0);
 119                 serv_write(&WC->upload[pos], thisblock);
 120                 pos = pos + thisblock;
 121                 bytes_remaining = bytes_remaining - thisblock;
 122         }
 123
 124         serv_puts("UCLS 1");
 125         serv_getln(buf, sizeof buf);
 126         if (buf[0] != 'x') {
 127                 display_success(&buf[4]);
 128                 return;
 129         }
 130 }