citadel/modules/xmpp/xmpp_messages.c

   1 /*
   2  * Handle messages sent and received using XMPP (Jabber) protocol
   3  *
   4  * Copyright (c) 2007-2010 by Art Cancro
   5  *
   6  * This program is open source software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 3.
   8  *
   9  *
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  *
  17  *
  18  *
  19  *
  20  */
  21
  22 #include "sysdep.h"
  23 #include <stdlib.h>
  24 #include <unistd.h>
  25 #include <stdio.h>
  26 #include <fcntl.h>
  27 #include <signal.h>
  28 #include <pwd.h>
  29 #include <errno.h>
  30 #include <sys/types.h>
  31
  32 #if TIME_WITH_SYS_TIME
  33 # include <sys/time.h>
  34 # include <time.h>
  35 #else
  36 # if HAVE_SYS_TIME_H
  37 #  include <sys/time.h>
  38 # else
  39 #  include <time.h>
  40 # endif
  41 #endif
  42
  43 #include <sys/wait.h>
  44 #include <string.h>
  45 #include <limits.h>
  46 #include <ctype.h>
  47 #include <expat.h>
  48 #include <libcitadel.h>
  49 #include "citadel.h"
  50 #include "server.h"
  51 #include "citserver.h"
  52 #include "support.h"
  53 #include "config.h"
  54 #include "internet_addressing.h"
  55 #include "md5.h"
  56 #include "ctdl_module.h"
  57 #include "serv_xmpp.h"
  58
  59
  60 /*
  61  * This function is called by the XMPP service's async loop.
  62  * If the client session has instant messages waiting, it outputs
  63  * unsolicited XML stanzas containing them.
  64  */
  65 void xmpp_output_incoming_messages(void)
  66 {
  67         struct CitContext *CCC = CC;
  68         citxmpp *Xmpp = XMPP;
  69         struct ExpressMessage *ptr;
  70
  71         while (CCC->FirstExpressMessage != NULL) {
  72
  73                 begin_critical_section(S_SESSION_TABLE);
  74                 ptr = CCC->FirstExpressMessage;
  75                 CCC->FirstExpressMessage = CCC->FirstExpressMessage->next;
  76                 end_critical_section(S_SESSION_TABLE);
  77
  78                 XPrint(HKEY("message"), 0,
  79                        XCPROPERTY("type", "chat"),
  80                        XPROPERTY("to", Xmpp->client_jid, strlen(Xmpp->client_jid)),
  81                        XPROPERTY("from", ptr->sender_email, strlen(ptr->sender_email)),
  82                        TYPE_ARGEND);
  83
  84                 if (ptr->text != NULL) {
  85                         striplt(ptr->text);
  86                         XPrint(HKEY("body"), XCLOSED,
  87                                XBODY(ptr->text, strlen(ptr->text)),
  88                                TYPE_ARGEND);
  89                         free(ptr->text);
  90                 }
  91                 XPUT("</message>");
  92                 free(ptr);
  93         }
  94         XUnbuffer();
  95 }
  96
  97 /*
  98  * Client is sending a message.
  99  */
 100 void xmpp_send_message(char *message_to, char *message_body) {
 101         struct CitContext *CCC = CC;
 102         char *recp = NULL;
 103         struct CitContext *cptr;
 104
 105         if (message_body == NULL) return;
 106         if (message_to == NULL) return;
 107         if (IsEmptyStr(message_to)) return;
 108         if (!CCC->logged_in) return;
 109
 110         for (cptr = ContextList; cptr != NULL; cptr = cptr->next) {
 111                 if (    (cptr->logged_in)
 112                         && (cptr->can_receive_im)
 113                         && (!strcasecmp(cptr->cs_inet_email, message_to))
 114                 ) {
 115                         recp = cptr->user.fullname;
 116                 }
 117         }
 118
 119         if (recp) {
 120                 PerformXmsgHooks(CCC->user.fullname, CCC->cs_inet_email, recp, message_body);
 121         }
 122
 123         free(XMPP->message_body);
 124         XMPP->message_body = NULL;
 125         XMPP->message_to[0] = 0;
 126         time(&CCC->lastidle);
 127 }
 128 void xmpp_end_message(void *data, const char *supplied_el, const char **attr)
 129 {
 130         xmpp_send_message(XMPP->message_to, XMPP->message_body);
 131         XMPP->html_tag_level = 0;
 132 }
 133
 134
 135
 136 CTDL_MODULE_INIT(xmpp_message)
 137 {
 138         if (!threading) {
 139                 AddXMPPEndHandler(HKEY("message"),       xmpp_end_message, 0);
 140         }
 141         return "xmpp_message";
 142 }