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         int self;
  37         char sroom[SIZ];
  38
  39         strcpy(WC->wc_username, "");
  40         strcpy(WC->wc_password, "");
  41         strcpy(WC->wc_roomname, "");
  42
  43         wprintf("<HTML><HEAD><TITLE>List subscription</TITLE></HEAD><BODY>\n");
  44
  45         strcpy(cmd, bstr("cmd"));
  46         strcpy(room, bstr("room"));
  47         strcpy(token, bstr("token"));
  48         strcpy(email, bstr("email"));
  49         strcpy(subtype, bstr("subtype"));
  50
  51         wprintf("<CENTER>"
  52                 "<TABLE WIDTH=100%% BORDER=0 BGCOLOR=000077><TR><TD>"
  53                 "<FONT SIZE=+1 COLOR=\"FFFFFF\""
  54                 "<B>List subscribe/unsubscribe</B>\n"
  55                 "</TD></TR></TABLE><BR>\n"
  56         );
  57
  58         /*
  59          * Subscribe command
  60          */
  61         if (!strcasecmp(cmd, "subscribe")) {
  62                 serv_printf("SUBS subscribe|%s|%s|%s|%s/listsub",
  63                         room,
  64                         email,
  65                         subtype,
  66                         WC->http_host
  67                 );
  68                 serv_gets(buf);
  69                 if (buf[0] == '2') {
  70                         wprintf("<CENTER><H1>Confirmation request sent</H1>"
  71                                 "You are subscribing <TT>");
  72                         escputs(email);
  73                         wprintf("</TT> to the &quot;");
  74                         escputs(room);
  75                         wprintf("&quot; mailing list.  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></CENTER>\n"
  85                         );
  86                 }
  87                 else {
  88                         wprintf("<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                         WC->http_host
 103                 );
 104                 serv_gets(buf);
 105                 if (buf[0] == '2') {
 106                         wprintf("<CENTER><H1>Confirmation request sent</H1>"
 107                                 "You are unsubscribing <TT>");
 108                         escputs(email);
 109                         wprintf("</TT> from the &quot;");
 110                         escputs(room);
 111                         wprintf("&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></CENTER>\n"
 121                         );
 122                 }
 123                 else {
 124                         wprintf("<FONT SIZE=+1><B>ERROR: %s</B>"
 125                                 "</FONT><BR><BR>\n",
 126                                 &buf[4]);
 127                         goto FORM;
 128                 }
 129         }
 130
 131         /*
 132          * Confirm command
 133          */
 134         else if (!strcasecmp(cmd, "confirm")) {
 135                 serv_printf("SUBS confirm|%s|%s",
 136                         room,
 137                         token
 138                 );
 139                 serv_gets(buf);
 140                 if (buf[0] == '2') {
 141                         wprintf("<CENTER><H1>Confirmation successful!</H1>");
 142                 }
 143                 else {
 144                         wprintf("<CENTER><H1>Confirmation failed.</H1>"
 145                                 "This could mean one of two things:<UL>\n"
 146                                 "<LI>You waited too long to confirm your "
 147                                 "subscribe/unsubscribe request (the "
 148                                 "confirmation link is only valid for three "
 149                                 "days)\n<LI>You have <i>already</i> "
 150                                 "successfully confirmed your "
 151                                 "subscribe/unsubscribe request and are "
 152                                 "attempting to do it again.</UL>\n"
 153                                 "The error returned by the server was: "
 154                         );
 155                 }
 156                 wprintf("%s</CENTER><BR>\n", &buf[4]);
 157         }
 158
 159         /*
 160          * Any other (invalid) command causes the form to be displayed
 161          */
 162         else {
 163 FORM:           wprintf("<FORM METHOD=\"POST\" ACTION=\"/listsub\">\n"
 164                         "<TABLE BORDER=0>\n"
 165                 );
 166
 167                 wprintf("<TR><TD>Name of list</TD><TD>"
 168                         "<SELECT NAME=\"room\" SIZE=1>\n");
 169
 170                 serv_puts("LPRM");
 171                 serv_gets(buf);
 172                 if (buf[0] == '1') {
 173                         while (serv_gets(buf), strcmp(buf, "000")) {
 174                                 extract(sroom, buf, 0);
 175                                 self = extract_int(buf, 4) & QR2_SELFLIST ;
 176                                 if (self) {
 177                                         wprintf("<OPTION VALUE=\"");
 178                                         escputs(sroom);
 179                                         wprintf("\">");
 180                                         escputs(sroom);
 181                                         wprintf("</OPTION>\n");
 182                                 }
 183                         }
 184                 }
 185                 wprintf("</SELECT>"
 186                         "</TD></TR>\n");
 187
 188                 wprintf("<TR><TD>Your e-mail address</TD><TD>"
 189                         "<INPUT TYPE=\"text\" NAME=\"email\" "
 190                         "VALUE=\""
 191                 );
 192                 escputs(email);
 193                 wprintf("\" MAXLENGTH=128></TD></TR>\n");
 194
 195                 wprintf("</TABLE>"
 196                         "(If subscribing) preferred format: "
 197                         "<INPUT TYPE=\"radio\" NAME=\"subtype\""
 198                         "VALUE=\"list\">One message at a time&nbsp; "
 199                         "<INPUT TYPE=\"radio\" NAME=\"subtype\""
 200                         "VALUE=\"digest\" CHECKED>Digest format&nbsp; "
 201                         "<BR>\n"
 202                         "<INPUT TYPE=\"submit\" NAME=\"cmd\""
 203                         " VALUE=\"subscribe\">\n"
 204                         "<INPUT TYPE=\"submit\" NAME=\"cmd\""
 205                         " VALUE=\"unsubscribe\">\n"
 206                         "</FORM>\n"
 207                 );
 208
 209                 wprintf("<BR>When you attempt to subscribe or unsubscribe to "
 210                         "a mailing list, you will receive an e-mail containing"
 211                         " one additional web link to click on for final "
 212                         "confirmation.  This extra step is for your "
 213                         "protection, as it prevents others from being able to "
 214                         "subscribe or unsubscribe you to lists.<BR>\n"
 215                 );
 216
 217         }
 218
 219         /*
 220          * Since this isn't part of a normal Citadel session, we bail right
 221          * out without maintaining any state.
 222          */
 223         /* wDumpContent(2); */
 224         wprintf("</BODY></HTML>\n");
 225         end_webcit_session();
 226 }