webcit/listsub.c

   1 /*
   2  * $Id$
   3  *
   4  * Web forms for handling mailing list subscribe/unsubscribe requests.
   5  *
   6  */
   7
   8 #include "webcit.h"
   9
  10
  11
  12 /*
  13  * List subscription handling
  14  */
  15 void do_listsub(void)
  16 {
  17         char cmd[256];
  18         char room[256];
  19         char token[256];
  20         char email[256];
  21         char subtype[256];
  22         char escaped_email[256];
  23         char escaped_room[256];
  24
  25         char buf[SIZ];
  26         int self;
  27         char sroom[SIZ];
  28
  29         strcpy(WC->wc_username, "");
  30         strcpy(WC->wc_password, "");
  31         strcpy(WC->wc_roomname, "");
  32
  33         wprintf("<HTML><HEAD><TITLE>");
  34         wprintf(_("List subscription"));
  35         wprintf("</TITLE></HEAD><BODY>\n");
  36
  37         strcpy(cmd, bstr("cmd"));
  38         strcpy(room, bstr("room"));
  39         strcpy(token, bstr("token"));
  40         strcpy(email, bstr("email"));
  41         strcpy(subtype, bstr("subtype"));
  42
  43         wprintf("<CENTER>"
  44                 "<TABLE WIDTH=100%% BORDER=0 BGCOLOR=\"#444455\"><TR><TD>"
  45                 "<SPAN CLASS=\"titlebar\">");
  46         wprintf(_("List subscribe/unsubscribe"));
  47         wprintf("</SPAN></TD></TR></TABLE><br />\n");
  48
  49         /*
  50          * Subscribe command
  51          */
  52         if (!strcasecmp(cmd, "subscribe")) {
  53                 serv_printf("SUBS subscribe|%s|%s|%s|%s/listsub",
  54                         room,
  55                         email,
  56                         subtype,
  57                         WC->http_host
  58                 );
  59                 serv_getln(buf, sizeof buf);
  60                 if (buf[0] == '2') {
  61                         stresc(escaped_email, email, 0, 0);
  62                         stresc(escaped_room, room, 0, 0);
  63
  64                         wprintf("<CENTER><H1>");
  65                         wprintf(_("Confirmation request sent"));
  66                         wprintf("</H1>");
  67                         wprintf(_("You are subscribing <TT>%s"
  68                                 "</TT> to the <b>%s</b> mailing list.  "
  69                                 "The listserver has "
  70                                 "sent you an e-mail with one additional "
  71                                 "Web link for you to click on to confirm "
  72                                 "your subscription.  This extra step is for "
  73                                 "your protection, as it prevents others from "
  74                                 "being able to subscribe you to lists "
  75                                 "without your consent.<br /><br />"
  76                                 "Please click on the link which is being "
  77                                 "e-mailed to you and your subscription will "
  78                                 "be confirmed.<br />\n"),
  79                                 escaped_email, escaped_room);
  80                         wprintf("<A HREF=\"/listsub\">%s</A></CENTER>\n", _("Go back..."));
  81                 }
  82                 else {
  83                         wprintf("<FONT SIZE=+1><B>ERROR: %s</B>"
  84                                 "</FONT><br /><br />\n",
  85                                 &buf[4]);
  86                         goto FORM;
  87                 }
  88         }
  89
  90         /*
  91          * Unsubscribe command
  92          */
  93         else if (!strcasecmp(cmd, "unsubscribe")) {
  94                 serv_printf("SUBS unsubscribe|%s|%s|%s/listsub",
  95                         room,
  96                         email,
  97                         WC->http_host
  98                 );
  99                 serv_getln(buf, sizeof buf);
 100                 if (buf[0] == '2') {
 101                         wprintf("<CENTER><H1>Confirmation request sent</H1>"
 102                                 "You are unsubscribing <TT>");
 103                         escputs(email);
 104                         wprintf("</TT> from the &quot;");
 105                         escputs(room);
 106                         wprintf("&quot; mailing list.  The listserver has "
 107                                 "sent you an e-mail with one additional "
 108                                 "Web link for you to click on to confirm "
 109                                 "your unsubscription.  This extra step is for "
 110                                 "your protection, as it prevents others from "
 111                                 "being able to unsubscribe you from "
 112                                 "lists without your consent.<br /><br />"
 113                                 "Please click on the link which is being "
 114                                 "e-mailed to you and your unsubscription will "
 115                                 "be confirmed.<br />\n"
 116                                 "<A HREF=\"/listsub\">Back...</A></CENTER>\n"
 117                         );
 118                 }
 119                 else {
 120                         wprintf("<FONT SIZE=+1><B>ERROR: %s</B>"
 121                                 "</FONT><br /><br />\n",
 122                                 &buf[4]);
 123                         goto FORM;
 124                 }
 125         }
 126
 127         /*
 128          * Confirm command
 129          */
 130         else if (!strcasecmp(cmd, "confirm")) {
 131                 serv_printf("SUBS confirm|%s|%s",
 132                         room,
 133                         token
 134                 );
 135                 serv_getln(buf, sizeof buf);
 136                 if (buf[0] == '2') {
 137                         wprintf("<CENTER><H1>Confirmation successful!</H1>");
 138                 }
 139                 else {
 140                         wprintf("<CENTER><H1>Confirmation failed.</H1>"
 141                                 "This could mean one of two things:<UL>\n"
 142                                 "<LI>You waited too long to confirm your "
 143                                 "subscribe/unsubscribe request (the "
 144                                 "confirmation link is only valid for three "
 145                                 "days)\n<LI>You have <i>already</i> "
 146                                 "successfully confirmed your "
 147                                 "subscribe/unsubscribe request and are "
 148                                 "attempting to do it again.</UL>\n"
 149                                 "The error returned by the server was: "
 150                         );
 151                 }
 152                 wprintf("%s</CENTER><br />\n", &buf[4]);
 153         }
 154
 155         /*
 156          * Any other (invalid) command causes the form to be displayed
 157          */
 158         else {
 159 FORM:           wprintf("<FORM METHOD=\"POST\" ACTION=\"/listsub\">\n"
 160                         "<TABLE BORDER=0>\n"
 161                 );
 162
 163                 wprintf("<TR><TD>Name of list</TD><TD>"
 164                         "<SELECT NAME=\"room\" SIZE=1>\n");
 165
 166                 serv_puts("LPRM");
 167                 serv_getln(buf, sizeof buf);
 168                 if (buf[0] == '1') {
 169                         while (serv_getln(buf, sizeof buf), strcmp(buf, "000")) {
 170                                 extract_token(sroom, buf, 0, '|', sizeof sroom);
 171                                 self = extract_int(buf, 4) & QR2_SELFLIST ;
 172                                 if (self) {
 173                                         wprintf("<OPTION VALUE=\"");
 174                                         escputs(sroom);
 175                                         wprintf("\">");
 176                                         escputs(sroom);
 177                                         wprintf("</OPTION>\n");
 178                                 }
 179                         }
 180                 }
 181                 wprintf("</SELECT>"
 182                         "</TD></TR>\n");
 183
 184                 wprintf("<TR><TD>Your e-mail address</TD><TD>"
 185                         "<INPUT TYPE=\"text\" NAME=\"email\" "
 186                         "VALUE=\""
 187                 );
 188                 escputs(email);
 189                 wprintf("\" MAXLENGTH=128></TD></TR>\n");
 190
 191                 wprintf("</TABLE>"
 192                         "(If subscribing) preferred format: "
 193                         "<INPUT TYPE=\"radio\" NAME=\"subtype\""
 194                         "VALUE=\"list\">One message at a time&nbsp; "
 195                         "<INPUT TYPE=\"radio\" NAME=\"subtype\""
 196                         "VALUE=\"digest\" CHECKED>Digest format&nbsp; "
 197                         "<br />\n"
 198                         "<INPUT TYPE=\"submit\" NAME=\"cmd\""
 199                         " VALUE=\"subscribe\">\n"
 200                         "<INPUT TYPE=\"submit\" NAME=\"cmd\""
 201                         " VALUE=\"unsubscribe\">\n"
 202                         "</FORM>\n"
 203                 );
 204
 205                 wprintf("<br />When you attempt to subscribe or unsubscribe to "
 206                         "a mailing list, you will receive an e-mail containing"
 207                         " one additional web link to click on for final "
 208                         "confirmation.  This extra step is for your "
 209                         "protection, as it prevents others from being able to "
 210                         "subscribe or unsubscribe you to lists.<br />\n"
 211                 );
 212
 213         }
 214
 215         /*
 216          * Since this isn't part of a normal Citadel session, we bail right
 217          * out without maintaining any state.
 218          */
 219         /* wDumpContent(2); */
 220         wprintf("</BODY></HTML>\n");
 221         end_webcit_session();
 222 }