webcit/listsub.c

   1 #include <ctype.h>
   2 #include <stdlib.h>
   3 #include <unistd.h>
   4 #include <stdio.h>
   5 #include <fcntl.h>
   6 #include <signal.h>
   7 #include <sys/types.h>
   8 #include <sys/wait.h>
   9 #include <sys/socket.h>
  10 #include <sys/time.h>
  11 #include <limits.h>
  12 #include <netinet/in.h>
  13 #include <netdb.h>
  14 #include <string.h>
  15 #include <pwd.h>
  16 #include <errno.h>
  17 #include <stdarg.h>
  18 #include <pthread.h>
  19 #include <signal.h>
  20 #include "webcit.h"
  21
  22
  23
  24 /*
  25  * List subscription handling
  26  */
  27 void do_listsub(void)
  28 {
  29         char cmd[SIZ];
  30         char room[SIZ];
  31         char token[SIZ];
  32         char email[SIZ];
  33         char subtype[SIZ];
  34
  35         char buf[SIZ];
  36
  37         strcpy(WC->wc_username, "");
  38         strcpy(WC->wc_password, "");
  39         strcpy(WC->wc_roomname, "");
  40
  41         output_headers(2);      /* note "2" causes cookies to be unset */
  42
  43         strcpy(cmd, bstr("cmd"));
  44         strcpy(room, bstr("room"));
  45         strcpy(token, bstr("token"));
  46         strcpy(email, bstr("email"));
  47         strcpy(subtype, bstr("subtype"));
  48
  49         wprintf("<CENTER>"
  50                 "<TABLE WIDTH=100%% BORDER=0 BGCOLOR=000077><TR><TD>"
  51                 "<FONT SIZE=+1 COLOR=\"FFFFFF\""
  52                 "<B>List subscribe/unsubscribe</B>\n"
  53                 "</TD></TR></TABLE><BR>\n"
  54         );
  55
  56         /*
  57          * Subscribe command
  58          */
  59         if (!strcasecmp(cmd, "subscribe")) {
  60                 serv_printf("SUBS subscribe|%s|%s|digest|%s/listsub",
  61                         room,
  62                         email,
  63                         WC->http_host
  64                 );
  65                 serv_gets(buf);
  66                 if (buf[0] == '2') {
  67                         wprintf("<CENTER><H1>Confirmation request sent</H1>"
  68                                 "You are subscribing <TT>");
  69                         escputs(email);
  70                         wprintf("</TT> to the &quot;");
  71                         escputs(room);
  72                         wprintf("&quot; mailing list.  The listserver has "
  73                                 "sent you an e-mail with one additional "
  74                                 "Web link for you to click on to confirm "
  75                                 "your subscription.  This extra step is for "
  76                                 "your protection, as it prevents others from "
  77                                 "being able to subscribe you to lists.<BR><BR>"
  78                                 "Please click on the link which is being "
  79                                 "e-mailed to you and your subscription will "
  80                                 "be confirmed.<BR></CENTER>\n"
  81                         );
  82                 }
  83                 else {
  84                         wprintf("<FONT SIZE=+1>ERROR: </FONT>%s<BR><BR>\n",
  85                                 &buf[4]);
  86                         goto FORM;
  87                 }
  88         }
  89
  90         /*
  91          * Any other (invalid) command causes the form to be displayed
  92          */
  93         else {
  94 FORM:           wprintf("<FORM METHOD=\"POST\" ACTION=\"/listsub\">\n"
  95                         "<TABLE BORDER=0>\n"
  96                 );
  97
  98                 wprintf("<TR><TD>Name of list</TD><TD>"
  99                         "<INPUT TYPE=\"text\" NAME=\"room\" "
 100                         "VALUE=\""
 101                 );
 102                 escputs(room);
 103                 wprintf("\" MAXLENGTH=128></TD></TR>\n");
 104
 105                 wprintf("<TR><TD>Your e-mail address</TD><TD>"
 106                         "<INPUT TYPE=\"text\" NAME=\"email\" "
 107                         "VALUE=\""
 108                 );
 109                 escputs(email);
 110                 wprintf("\" MAXLENGTH=128></TD></TR>\n");
 111
 112                 wprintf("</TABLE>"
 113                         "<INPUT TYPE=\"submit\" NAME=\"cmd\""
 114                         " VALUE=\"subscribe\">\n"
 115                         "<INPUT TYPE=\"submit\" NAME=\"cmd\""
 116                         " VALUE=\"unsubscribe\">\n"
 117                         "</FORM>\n"
 118                 );
 119
 120                 wprintf("<BR>When you attempt to subscribe or unsubscribe to "
 121                         "a mailing list, you will receive an e-mail containing"
 122                         " one additional web link to click on for final "
 123                         "confirmation.  This extra step is for your "
 124                         "protection, as it prevents others from being able to "
 125                         "subscribe or unsubscribe you to lists.<BR>\n"
 126                 );
 127
 128         }
 129
 130         /*
 131          * Since this isn't part of a normal Citadel session, we bail right
 132          * out without maintaining any state.
 133          */
 134         wDumpContent(2);
 135         end_webcit_session();
 136 }