webcit/listsub.c

   1 /*
   2  * Web forms for handling mailing list subscribe/unsubscribe requests.
   3  *
   4  * Copyright (c) 1996-2011 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 as
   8  * published by the Free Software Foundation; either version 3 of the
   9  * License, or (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  19  */
  20
  21 #include "webcit.h"
  22
  23 /*
  24  * List subscription handling
  25  */
  26 void do_listsub(void)
  27 {
  28         char cmd[256];
  29         char room[256];
  30         char token[256];
  31         char email[256];
  32         char subtype[256];
  33         char escaped_email[256];
  34         char escaped_room[256];
  35
  36         char buf[SIZ];
  37         int self;
  38         char sroom[SIZ];
  39
  40         FlushStrBuf(WC->wc_fullname);
  41         FlushStrBuf(WC->wc_username);
  42         FlushStrBuf(WC->wc_password);
  43         FlushStrBuf(WC->CurRoom.name);
  44
  45         output_headers(1, 0, 0, 1, 1, 0);
  46         begin_burst();
  47
  48         wc_printf("<HTML><HEAD>\n"
  49                 "<meta name=\"MSSmartTagsPreventParsing\" content=\"TRUE\" />\n"
  50                 "<link href=\"static/styles/webcit.css\" rel=\"stylesheet\" type=\"text/css\">\n"
  51                 "<TITLE>\n"
  52         );
  53         wc_printf(_("List subscription"));
  54         wc_printf("</TITLE></HEAD><BODY>\n");
  55
  56         strcpy(cmd, bstr("cmd"));
  57         strcpy(room, bstr("room"));
  58         strcpy(token, bstr("token"));
  59         strcpy(email, bstr("email"));
  60         strcpy(subtype, bstr("subtype"));
  61
  62         wc_printf("<div align=center>");
  63         wc_printf("<table border=0 width=75%%><tr><td>");
  64
  65         do_template("box_begin_1");
  66         StrBufAppendBufPlain(WC->WBuf, _("List subscribe/unsubscribe"), -1, 0);
  67         do_template("box_begin_2");
  68         wc_printf("<div align=center><br>");
  69
  70         /*
  71          * Subscribe command
  72          */
  73         if (!strcasecmp(cmd, "subscribe")) {
  74                 serv_printf("SUBS subscribe|%s|%s|%s|%s/listsub",
  75                         room,
  76                         email,
  77                         subtype,
  78                         ChrPtr(site_prefix)
  79                 );
  80                 serv_getln(buf, sizeof buf);
  81                 if (buf[0] == '2') {
  82                         stresc(escaped_email, 256, email, 0, 0);
  83                         stresc(escaped_room, 256, room, 0, 0);
  84
  85                         wc_printf("<CENTER><H1>");
  86                         wc_printf(_("Confirmation request sent"));
  87                         wc_printf("</H1>");
  88                         wc_printf(_("You are subscribing <TT>%s"
  89                                 "</TT> to the <b>%s</b> mailing list.  "
  90                                 "The listserver has "
  91                                 "sent you an e-mail with one additional "
  92                                 "Web link for you to click on to confirm "
  93                                 "your subscription.  This extra step is for "
  94                                 "your protection, as it prevents others from "
  95                                 "being able to subscribe you to lists "
  96                                 "without your consent.<br><br>"
  97                                 "Please click on the link which is being "
  98                                 "e-mailed to you and your subscription will "
  99                                 "be confirmed.<br>\n"),
 100                                 escaped_email, escaped_room);
 101                         wc_printf("<a href=\"listsub\">%s</A></CENTER>\n", _("Go back..."));
 102                 }
 103                 else {
 104                         wc_printf("<FONT SIZE=+1><B>ERROR: %s</B>"
 105                                 "</FONT><br><br>\n",
 106                                 &buf[4]);
 107                         goto FORM;
 108                 }
 109         }
 110
 111         /*
 112          * Unsubscribe command
 113          */
 114         else if (!strcasecmp(cmd, "unsubscribe")) {
 115                 serv_printf("SUBS unsubscribe|%s|%s|%s/listsub",
 116                         room,
 117                         email,
 118                         ChrPtr(site_prefix)
 119                 );
 120                 serv_getln(buf, sizeof buf);
 121                 if (buf[0] == '2') {
 122                         wc_printf("<CENTER><H1>Confirmation request sent</H1>"
 123                                 "You are unsubscribing <TT>");
 124                         escputs(email);
 125                         wc_printf("</TT> from the &quot;");
 126                         escputs(room);
 127                         wc_printf("&quot; mailing list.  The listserver has "
 128                                 "sent you an e-mail with one additional "
 129                                 "Web link for you to click on to confirm "
 130                                 "your unsubscription.  This extra step is for "
 131                                 "your protection, as it prevents others from "
 132                                 "being able to unsubscribe you from "
 133                                 "lists without your consent.<br><br>"
 134                                 "Please click on the link which is being "
 135                                 "e-mailed to you and your unsubscription will "
 136                                 "be confirmed.<br>\n"
 137                                 "<a href=\"listsub\">Back...</A></CENTER>\n"
 138                         );
 139                 }
 140                 else {
 141                         wc_printf("<FONT SIZE=+1><B>ERROR: %s</B>"
 142                                 "</FONT><br><br>\n",
 143                                 &buf[4]);
 144                         goto FORM;
 145                 }
 146         }
 147
 148         /*
 149          * Confirm command
 150          */
 151         else if (!strcasecmp(cmd, "confirm")) {
 152                 serv_printf("SUBS confirm|%s|%s",
 153                         room,
 154                         token
 155                 );
 156                 serv_getln(buf, sizeof buf);
 157                 if (buf[0] == '2') {
 158                         wc_printf("<CENTER><H1>Confirmation successful!</H1>");
 159                 }
 160                 else {
 161                         wc_printf("<CENTER><H1>Confirmation failed.</H1>"
 162                                 "This could mean one of two things:<UL>\n"
 163                                 "<LI>You waited too long to confirm your "
 164                                 "subscribe/unsubscribe request (the "
 165                                 "confirmation link is only valid for three "
 166                                 "days)\n<LI>You have <i>already</i> "
 167                                 "successfully confirmed your "
 168                                 "subscribe/unsubscribe request and are "
 169                                 "attempting to do it again.</UL>\n"
 170                                 "The error returned by the server was: "
 171                         );
 172                 }
 173                 wc_printf("%s</CENTER><br>\n", &buf[4]);
 174         }
 175
 176         /*
 177          * Any other (invalid) command causes the form to be displayed
 178          */
 179         else {
 180 FORM:           wc_printf("<form method=\"POST\" action=\"listsub\">\n");
 181
 182                 wc_printf("Name of list: "
 183                         "<select name=\"room\" size=1>\n");
 184
 185                 serv_puts("LPRM");
 186                 serv_getln(buf, sizeof buf);
 187                 if (buf[0] == '1') {
 188                         while (serv_getln(buf, sizeof buf), strcmp(buf, "000")) {
 189                                 extract_token(sroom, buf, 0, '|', sizeof sroom);
 190                                 self = extract_int(buf, 4) & QR2_SELFLIST ;
 191                                 if (self) {
 192                                         wc_printf("<option value=\"");
 193                                         escputs(sroom);
 194                                         wc_printf("\">");
 195                                         escputs(sroom);
 196                                         wc_printf("</option>\n");
 197                                 }
 198                         }
 199                 }
 200                 wc_printf("</select><br><br>\n");
 201
 202                 wc_printf("Your e-mail address: "
 203                         "<INPUT TYPE=\"text\" NAME=\"email\" "
 204                         "VALUE=\""
 205                 );
 206                 escputs(email);
 207                 wc_printf("\" maxlength=128 size=60><br><br>\n");
 208
 209                 wc_printf("(If subscribing) preferred format: "
 210                         "<INPUT TYPE=\"radio\" NAME=\"subtype\" "
 211                         "VALUE=\"list\" CHECKED>One message at a time&nbsp; "
 212                         "<INPUT TYPE=\"radio\" NAME=\"subtype\" "
 213                         "VALUE=\"digest\">Digest format&nbsp; "
 214                         "<br><br>\n"
 215                         "<INPUT TYPE=\"submit\" NAME=\"cmd\""
 216                         " VALUE=\"subscribe\">\n"
 217                         "<INPUT TYPE=\"submit\" NAME=\"cmd\""
 218                         " VALUE=\"unsubscribe\"><br><br>\n"
 219                         "</FORM>\n"
 220                 );
 221
 222                 wc_printf("<hr>When you attempt to subscribe or unsubscribe to "
 223                         "a mailing list, you will receive an e-mail containing"
 224                         " one additional web link to click on for final "
 225                         "confirmation.  This extra step is for your "
 226                         "protection, as it prevents others from being able to "
 227                         "subscribe or unsubscribe you to lists.<br>\n"
 228                 );
 229
 230         }
 231
 232         wc_printf("</div>");
 233         do_template("box_end");
 234         wc_printf("</td></tr></table></div>");
 235
 236         wc_printf("</BODY></HTML>\n");
 237         wDumpContent(0);
 238         end_webcit_session();
 239 }
 240
 241
 242
 243 void
 244 InitModule_LISTSUB
 245 (void)
 246 {
 247         WebcitAddUrlHandler(HKEY("listsub"), "", 0, do_listsub, ANONYMOUS|COOKIEUNNEEDED|FORCE_SESSIONCLOSE);
 248
 249
 250 }