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=\"#444455\"><TR><TD>"
  53                 "<SPAN CLASS=\"titlebar\">List subscribe/unsubscribe</SPAN>\n"
  54                 "</TD></TR></TABLE><br />\n"
  55         );
  56
  57         /*
  58          * Subscribe command
  59          */
  60         if (!strcasecmp(cmd, "subscribe")) {
  61                 serv_printf("SUBS subscribe|%s|%s|%s|%s/listsub",
  62                         room,
  63                         email,
  64                         subtype,
  65                         WC->http_host
  66                 );
  67                 serv_gets(buf);
  68                 if (buf[0] == '2') {
  69                         wprintf("<CENTER><H1>Confirmation request sent</H1>"
  70                                 "You are subscribing <TT>");
  71                         escputs(email);
  72                         wprintf("</TT> to the &quot;");
  73                         escputs(room);
  74                         wprintf("&quot; mailing list.  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                                 "<A HREF=\"/listsub\">Back...</A></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 />\n"
 121                                 "<A HREF=\"/listsub\">Back...</A></CENTER>\n"
 122                         );
 123                 }
 124                 else {
 125                         wprintf("<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_gets(buf);
 141                 if (buf[0] == '2') {
 142                         wprintf("<CENTER><H1>Confirmation successful!</H1>");
 143                 }
 144                 else {
 145                         wprintf("<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                 wprintf("%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:           wprintf("<FORM METHOD=\"GET\" ACTION=\"/listsub\">\n"
 165                         "<TABLE BORDER=0>\n"
 166                 );
 167
 168                 wprintf("<TR><TD>Name of list</TD><TD>"
 169                         "<SELECT NAME=\"room\" SIZE=1>\n");
 170
 171                 serv_puts("LPRM");
 172                 serv_gets(buf);
 173                 if (buf[0] == '1') {
 174                         while (serv_gets(buf), strcmp(buf, "000")) {
 175                                 extract(sroom, buf, 0);
 176                                 self = extract_int(buf, 4) & QR2_SELFLIST ;
 177                                 if (self) {
 178                                         wprintf("<OPTION VALUE=\"");
 179                                         escputs(sroom);
 180                                         wprintf("\">");
 181                                         escputs(sroom);
 182                                         wprintf("</OPTION>\n");
 183                                 }
 184                         }
 185                 }
 186                 wprintf("</SELECT>"
 187                         "</TD></TR>\n");
 188
 189                 wprintf("<TR><TD>Your e-mail address</TD><TD>"
 190                         "<INPUT TYPE=\"text\" NAME=\"email\" "
 191                         "VALUE=\""
 192                 );
 193                 escputs(email);
 194                 wprintf("\" MAXLENGTH=128></TD></TR>\n");
 195
 196                 wprintf("</TABLE>"
 197                         "(If subscribing) preferred format: "
 198                         "<INPUT TYPE=\"radio\" NAME=\"subtype\""
 199                         "VALUE=\"list\">One message at a time&nbsp; "
 200                         "<INPUT TYPE=\"radio\" NAME=\"subtype\""
 201                         "VALUE=\"digest\" CHECKED>Digest format&nbsp; "
 202                         "<br />\n"
 203                         "<INPUT TYPE=\"submit\" NAME=\"cmd\""
 204                         " VALUE=\"subscribe\">\n"
 205                         "<INPUT TYPE=\"submit\" NAME=\"cmd\""
 206                         " VALUE=\"unsubscribe\">\n"
 207                         "</FORM>\n"
 208                 );
 209
 210                 wprintf("<br />When you attempt to subscribe or unsubscribe to "
 211                         "a mailing list, you will receive an e-mail containing"
 212                         " one additional web link to click on for final "
 213                         "confirmation.  This extra step is for your "
 214                         "protection, as it prevents others from being able to "
 215                         "subscribe or unsubscribe you to lists.<br />\n"
 216                 );
 217
 218         }
 219
 220         /*
 221          * Since this isn't part of a normal Citadel session, we bail right
 222          * out without maintaining any state.
 223          */
 224         /* wDumpContent(2); */
 225         wprintf("</BODY></HTML>\n");
 226         end_webcit_session();
 227 }