webcit/listsub.c

   1 /*
   2  * Web forms for handling mailing list subscribe/unsubscribe requests.
   3  */
   4
   5 #include "webcit.h"
   6
   7 /*
   8  * List subscription handling
   9  */
  10 void do_listsub(void)
  11 {
  12         char cmd[256];
  13         char room[256];
  14         char token[256];
  15         char email[256];
  16         char subtype[256];
  17         char escaped_email[256];
  18         char escaped_room[256];
  19
  20         char buf[SIZ];
  21         int self;
  22         char sroom[SIZ];
  23
  24         FlushStrBuf(WC->wc_fullname);
  25         FlushStrBuf(WC->wc_username);
  26         FlushStrBuf(WC->wc_password);
  27         FlushStrBuf(WC->CurRoom.name);
  28
  29         output_headers(1, 0, 0, 1, 1, 0);
  30         begin_burst();
  31
  32         wc_printf("<HTML><HEAD>\n"
  33                 "<meta name=\"MSSmartTagsPreventParsing\" content=\"TRUE\" />\n"
  34                 "<link href=\"static/styles/webcit.css\" rel=\"stylesheet\" type=\"text/css\">\n"
  35                 "<TITLE>\n"
  36         );
  37         wc_printf(_("List subscription"));
  38         wc_printf("</TITLE></HEAD><BODY>\n");
  39
  40         strcpy(cmd, bstr("cmd"));
  41         strcpy(room, bstr("room"));
  42         strcpy(token, bstr("token"));
  43         strcpy(email, bstr("email"));
  44         strcpy(subtype, bstr("subtype"));
  45
  46         wc_printf("<div align=center>");
  47         wc_printf("<table border=0 width=75%%><tr><td>");
  48
  49         do_template("beginbox_1", NULL);
  50         StrBufAppendBufPlain(WC->WBuf, _("List subscribe/unsubscribe"), -1, 0);
  51         do_template("beginbox_2", NULL);
  52         wc_printf("<div align=center><br>");
  53
  54         /*
  55          * Subscribe command
  56          */
  57         if (!strcasecmp(cmd, "subscribe")) {
  58                 serv_printf("SUBS subscribe|%s|%s|%s|%s/listsub",
  59                         room,
  60                         email,
  61                         subtype,
  62                         ChrPtr(site_prefix)
  63                 );
  64                 serv_getln(buf, sizeof buf);
  65                 if (buf[0] == '2') {
  66                         stresc(escaped_email, 256, email, 0, 0);
  67                         stresc(escaped_room, 256, room, 0, 0);
  68
  69                         wc_printf("<CENTER><H1>");
  70                         wc_printf(_("Confirmation request sent"));
  71                         wc_printf("</H1>");
  72                         wc_printf(_("You are subscribing <TT>%s"
  73                                 "</TT> to the <b>%s</b> mailing list.  "
  74                                 "The listserver has "
  75                                 "sent you an e-mail with one additional "
  76                                 "Web link for you to click on to confirm "
  77                                 "your subscription.  This extra step is for "
  78                                 "your protection, as it prevents others from "
  79                                 "being able to subscribe you to lists "
  80                                 "without your consent.<br><br>"
  81                                 "Please click on the link which is being "
  82                                 "e-mailed to you and your subscription will "
  83                                 "be confirmed.<br>\n"),
  84                                 escaped_email, escaped_room);
  85                         wc_printf("<a href=\"listsub\">%s</A></CENTER>\n", _("Go back..."));
  86                 }
  87                 else {
  88                         wc_printf("<FONT SIZE=+1><B>ERROR: %s</B>"
  89                                 "</FONT><br><br>\n",
  90                                 &buf[4]);
  91                         goto FORM;
  92                 }
  93         }
  94
  95         /*
  96          * Unsubscribe command
  97          */
  98         else if (!strcasecmp(cmd, "unsubscribe")) {
  99                 serv_printf("SUBS unsubscribe|%s|%s|%s/listsub",
 100                         room,
 101                         email,
 102                         ChrPtr(site_prefix)
 103                 );
 104                 serv_getln(buf, sizeof buf);
 105                 if (buf[0] == '2') {
 106                         wc_printf("<CENTER><H1>Confirmation request sent</H1>"
 107                                 "You are unsubscribing <TT>");
 108                         escputs(email);
 109                         wc_printf("</TT> from the &quot;");
 110                         escputs(room);
 111                         wc_printf("&quot; mailing list.  The listserver has "
 112                                 "sent you an e-mail with one additional "
 113                                 "Web link for you to click on to confirm "
 114                                 "your unsubscription.  This extra step is for "
 115                                 "your protection, as it prevents others from "
 116                                 "being able to unsubscribe you from "
 117                                 "lists without your consent.<br><br>"
 118                                 "Please click on the link which is being "
 119                                 "e-mailed to you and your unsubscription will "
 120                                 "be confirmed.<br>\n"
 121                                 "<a href=\"listsub\">Back...</A></CENTER>\n"
 122                         );
 123                 }
 124                 else {
 125                         wc_printf("<FONT SIZE=+1><B>ERROR: %s</B>"
 126                                 "</FONT><br><br>\n",
 127                                 &buf[4]);
 128                         goto FORM;
 129                 }
 130         }
 131
 132         /*
 133          * Confirm command
 134          */
 135         else if (!strcasecmp(cmd, "confirm")) {
 136                 serv_printf("SUBS confirm|%s|%s",
 137                         room,
 138                         token
 139                 );
 140                 serv_getln(buf, sizeof buf);
 141                 if (buf[0] == '2') {
 142                         wc_printf("<CENTER><H1>Confirmation successful!</H1>");
 143                 }
 144                 else {
 145                         wc_printf("<CENTER><H1>Confirmation failed.</H1>"
 146                                 "This could mean one of two things:<UL>\n"
 147                                 "<LI>You waited too long to confirm your "
 148                                 "subscribe/unsubscribe request (the "
 149                                 "confirmation link is only valid for three "
 150                                 "days)\n<LI>You have <i>already</i> "
 151                                 "successfully confirmed your "
 152                                 "subscribe/unsubscribe request and are "
 153                                 "attempting to do it again.</UL>\n"
 154                                 "The error returned by the server was: "
 155                         );
 156                 }
 157                 wc_printf("%s</CENTER><br>\n", &buf[4]);
 158         }
 159
 160         /*
 161          * Any other (invalid) command causes the form to be displayed
 162          */
 163         else {
 164 FORM:           wc_printf("<form method=\"POST\" action=\"listsub\">\n");
 165
 166                 wc_printf("Name of list: "
 167                         "<select name=\"room\" size=1>\n");
 168
 169                 serv_puts("LPRM");
 170                 serv_getln(buf, sizeof buf);
 171                 if (buf[0] == '1') {
 172                         while (serv_getln(buf, sizeof buf), strcmp(buf, "000")) {
 173                                 extract_token(sroom, buf, 0, '|', sizeof sroom);
 174                                 self = extract_int(buf, 4) & QR2_SELFLIST ;
 175                                 if (self) {
 176                                         wc_printf("<option value=\"");
 177                                         escputs(sroom);
 178                                         wc_printf("\">");
 179                                         escputs(sroom);
 180                                         wc_printf("</option>\n");
 181                                 }
 182                         }
 183                 }
 184                 wc_printf("</select><br><br>\n");
 185
 186                 wc_printf("Your e-mail address: "
 187                         "<INPUT TYPE=\"text\" NAME=\"email\" "
 188                         "VALUE=\""
 189                 );
 190                 escputs(email);
 191                 wc_printf("\" maxlength=128 size=60><br><br>\n");
 192
 193                 wc_printf("(If subscribing) preferred format: "
 194                         "<INPUT TYPE=\"radio\" NAME=\"subtype\" "
 195                         "VALUE=\"list\" CHECKED>One message at a time&nbsp; "
 196                         "<INPUT TYPE=\"radio\" NAME=\"subtype\" "
 197                         "VALUE=\"digest\">Digest format&nbsp; "
 198                         "<br><br>\n"
 199                         "<INPUT TYPE=\"submit\" NAME=\"cmd\""
 200                         " VALUE=\"subscribe\">\n"
 201                         "<INPUT TYPE=\"submit\" NAME=\"cmd\""
 202                         " VALUE=\"unsubscribe\"><br><br>\n"
 203                         "</FORM>\n"
 204                 );
 205
 206                 wc_printf("<hr>When you attempt to subscribe or unsubscribe to "
 207                         "a mailing list, you will receive an e-mail containing"
 208                         " one additional web link to click on for final "
 209                         "confirmation.  This extra step is for your "
 210                         "protection, as it prevents others from being able to "
 211                         "subscribe or unsubscribe you to lists.<br>\n"
 212                 );
 213
 214         }
 215
 216         wc_printf("</div>");
 217         do_template("endbox", NULL);
 218         wc_printf("</td></tr></table></div>");
 219
 220         wc_printf("</BODY></HTML>\n");
 221         wDumpContent(0);
 222         end_webcit_session();
 223 }
 224
 225
 226
 227 void
 228 InitModule_LISTSUB
 229 (void)
 230 {
 231         WebcitAddUrlHandler(HKEY("listsub"), "", 0, do_listsub, ANONYMOUS|COOKIEUNNEEDED|FORCE_SESSIONCLOSE);
 232
 233
 234 }