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://%s/listsub",
  59                         room,
  60                         email,
  61                         subtype,
  62                         (is_https ? "https" : "http"),
  63                             ChrPtr(WC->Hdr->HR.http_host)
  64                 );
  65                 serv_getln(buf, sizeof buf);
  66                 if (buf[0] == '2') {
  67                         stresc(escaped_email, 256, email, 0, 0);
  68                         stresc(escaped_room, 256, room, 0, 0);
  69
  70                         wc_printf("<CENTER><H1>");
  71                         wc_printf(_("Confirmation request sent"));
  72                         wc_printf("</H1>");
  73                         wc_printf(_("You are subscribing <TT>%s"
  74                                 "</TT> to the <b>%s</b> mailing list.  "
  75                                 "The listserver has "
  76                                 "sent you an e-mail with one additional "
  77                                 "Web link for you to click on to confirm "
  78                                 "your subscription.  This extra step is for "
  79                                 "your protection, as it prevents others from "
  80                                 "being able to subscribe you to lists "
  81                                 "without your consent.<br /><br />"
  82                                 "Please click on the link which is being "
  83                                 "e-mailed to you and your subscription will "
  84                                 "be confirmed.<br />\n"),
  85                                 escaped_email, escaped_room);
  86                         wc_printf("<a href=\"listsub\">%s</A></CENTER>\n", _("Go back..."));
  87                 }
  88                 else {
  89                         wc_printf("<FONT SIZE=+1><B>ERROR: %s</B>"
  90                                 "</FONT><br /><br />\n",
  91                                 &buf[4]);
  92                         goto FORM;
  93                 }
  94         }
  95
  96         /*
  97          * Unsubscribe command
  98          */
  99         else if (!strcasecmp(cmd, "unsubscribe")) {
 100                 serv_printf("SUBS unsubscribe|%s|%s|%s://%s/listsub",
 101                             room,
 102                             email,
 103                             (is_https ? "https" : "http"),
 104                             ChrPtr(WC->Hdr->HR.http_host)
 105                 );
 106                 serv_getln(buf, sizeof buf);
 107                 if (buf[0] == '2') {
 108                         wc_printf("<CENTER><H1>Confirmation request sent</H1>"
 109                                 "You are unsubscribing <TT>");
 110                         escputs(email);
 111                         wc_printf("</TT> from the &quot;");
 112                         escputs(room);
 113                         wc_printf("&quot; mailing list.  The listserver has "
 114                                 "sent you an e-mail with one additional "
 115                                 "Web link for you to click on to confirm "
 116                                 "your unsubscription.  This extra step is for "
 117                                 "your protection, as it prevents others from "
 118                                 "being able to unsubscribe you from "
 119                                 "lists without your consent.<br /><br />"
 120                                 "Please click on the link which is being "
 121                                 "e-mailed to you and your unsubscription will "
 122                                 "be confirmed.<br />\n"
 123                                 "<a href=\"listsub\">Back...</A></CENTER>\n"
 124                         );
 125                 }
 126                 else {
 127                         wc_printf("<FONT SIZE=+1><B>ERROR: %s</B>"
 128                                 "</FONT><br /><br />\n",
 129                                 &buf[4]);
 130                         goto FORM;
 131                 }
 132         }
 133
 134         /*
 135          * Confirm command
 136          */
 137         else if (!strcasecmp(cmd, "confirm")) {
 138                 serv_printf("SUBS confirm|%s|%s",
 139                         room,
 140                         token
 141                 );
 142                 serv_getln(buf, sizeof buf);
 143                 if (buf[0] == '2') {
 144                         wc_printf("<CENTER><H1>Confirmation successful!</H1>");
 145                 }
 146                 else {
 147                         wc_printf("<CENTER><H1>Confirmation failed.</H1>"
 148                                 "This could mean one of two things:<UL>\n"
 149                                 "<LI>You waited too long to confirm your "
 150                                 "subscribe/unsubscribe request (the "
 151                                 "confirmation link is only valid for three "
 152                                 "days)\n<LI>You have <i>already</i> "
 153                                 "successfully confirmed your "
 154                                 "subscribe/unsubscribe request and are "
 155                                 "attempting to do it again.</UL>\n"
 156                                 "The error returned by the server was: "
 157                         );
 158                 }
 159                 wc_printf("%s</CENTER><br />\n", &buf[4]);
 160         }
 161
 162         /*
 163          * Any other (invalid) command causes the form to be displayed
 164          */
 165         else {
 166 FORM:           wc_printf("<form method=\"POST\" action=\"listsub\">\n");
 167
 168                 wc_printf("Name of list: "
 169                         "<select name=\"room\" size=1>\n");
 170
 171                 serv_puts("LPRM");
 172                 serv_getln(buf, sizeof buf);
 173                 if (buf[0] == '1') {
 174                         while (serv_getln(buf, sizeof buf), strcmp(buf, "000")) {
 175                                 extract_token(sroom, buf, 0, '|', sizeof sroom);
 176                                 self = extract_int(buf, 4) & QR2_SELFLIST ;
 177                                 if (self) {
 178                                         wc_printf("<option value=\"");
 179                                         escputs(sroom);
 180                                         wc_printf("\">");
 181                                         escputs(sroom);
 182                                         wc_printf("</option>\n");
 183                                 }
 184                         }
 185                 }
 186                 wc_printf("</select><br><br>\n");
 187
 188                 wc_printf("Your e-mail address: "
 189                         "<INPUT TYPE=\"text\" NAME=\"email\" "
 190                         "VALUE=\""
 191                 );
 192                 escputs(email);
 193                 wc_printf("\" maxlength=128 size=60><br><br>\n");
 194
 195                 wc_printf("(If subscribing) preferred format: "
 196                         "<INPUT TYPE=\"radio\" NAME=\"subtype\" "
 197                         "VALUE=\"list\" CHECKED>One message at a time&nbsp; "
 198                         "<INPUT TYPE=\"radio\" NAME=\"subtype\" "
 199                         "VALUE=\"digest\">Digest format&nbsp; "
 200                         "<br><br>\n"
 201                         "<INPUT TYPE=\"submit\" NAME=\"cmd\""
 202                         " VALUE=\"subscribe\">\n"
 203                         "<INPUT TYPE=\"submit\" NAME=\"cmd\""
 204                         " VALUE=\"unsubscribe\"><br><br>\n"
 205                         "</FORM>\n"
 206                 );
 207
 208                 wc_printf("<hr>When you attempt to subscribe or unsubscribe to "
 209                         "a mailing list, you will receive an e-mail containing"
 210                         " one additional web link to click on for final "
 211                         "confirmation.  This extra step is for your "
 212                         "protection, as it prevents others from being able to "
 213                         "subscribe or unsubscribe you to lists.<br />\n"
 214                 );
 215
 216         }
 217
 218         wc_printf("</div>");
 219         do_template("endbox", NULL);
 220         wc_printf("</td></tr></table></div>");
 221
 222         wc_printf("</BODY></HTML>\n");
 223         wDumpContent(0);
 224         end_webcit_session();
 225 }
 226
 227
 228
 229 void
 230 InitModule_LISTSUB
 231 (void)
 232 {
 233         WebcitAddUrlHandler(HKEY("listsub"), "", 0, do_listsub, ANONYMOUS|COOKIEUNNEEDED|FORCE_SESSIONCLOSE);
 234
 235
 236 }