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      1 /*
      2  * libjingle
      3  * Copyright 2004--2005, Google Inc.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions are met:
      7  *
      8  *  1. Redistributions of source code must retain the above copyright notice,
      9  *     this list of conditions and the following disclaimer.
     10  *  2. Redistributions in binary form must reproduce the above copyright notice,
     11  *     this list of conditions and the following disclaimer in the documentation
     12  *     and/or other materials provided with the distribution.
     13  *  3. The name of the author may not be used to endorse or promote products
     14  *     derived from this software without specific prior written permission.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
     17  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
     18  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
     19  * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     20  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     21  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
     22  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
     23  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
     24  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
     25  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     26  */
     27 
     28 #include <time.h>
     29 #include <sstream>
     30 #include "talk/base/stringencode.h"
     31 #include "talk/xmpp/constants.h"
     32 #include "talk/xmpp/presenceouttask.h"
     33 #include "talk/xmpp/xmppclient.h"
     34 
     35 namespace buzz {
     36 
     37 XmppReturnStatus
     38 PresenceOutTask::Send(const PresenceStatus & s) {
     39   if (GetState() != STATE_INIT && GetState() != STATE_START)
     40     return XMPP_RETURN_BADSTATE;
     41 
     42   XmlElement * presence = TranslateStatus(s);
     43   QueueStanza(presence);
     44   delete presence;
     45   return XMPP_RETURN_OK;
     46 }
     47 
     48 XmppReturnStatus
     49 PresenceOutTask::SendDirected(const Jid & j, const PresenceStatus & s) {
     50   if (GetState() != STATE_INIT && GetState() != STATE_START)
     51     return XMPP_RETURN_BADSTATE;
     52 
     53   XmlElement * presence = TranslateStatus(s);
     54   presence->AddAttr(QN_TO, j.Str());
     55   QueueStanza(presence);
     56   delete presence;
     57   return XMPP_RETURN_OK;
     58 }
     59 
     60 XmppReturnStatus PresenceOutTask::SendProbe(const Jid & jid) {
     61   if (GetState() != STATE_INIT && GetState() != STATE_START)
     62     return XMPP_RETURN_BADSTATE;
     63 
     64   XmlElement * presence = new XmlElement(QN_PRESENCE);
     65   presence->AddAttr(QN_TO, jid.Str());
     66   presence->AddAttr(QN_TYPE, "probe");
     67 
     68   QueueStanza(presence);
     69   delete presence;
     70   return XMPP_RETURN_OK;
     71 }
     72 
     73 int
     74 PresenceOutTask::ProcessStart() {
     75   const XmlElement * stanza = NextStanza();
     76   if (stanza == NULL)
     77     return STATE_BLOCKED;
     78 
     79   if (SendStanza(stanza) != XMPP_RETURN_OK)
     80     return STATE_ERROR;
     81 
     82   return STATE_START;
     83 }
     84 
     85 XmlElement *
     86 PresenceOutTask::TranslateStatus(const PresenceStatus & s) {
     87   XmlElement * result = new XmlElement(QN_PRESENCE);
     88   if (!s.available()) {
     89     result->AddAttr(QN_TYPE, STR_UNAVAILABLE);
     90   }
     91   else {
     92     if (s.show() != PresenceStatus::SHOW_ONLINE &&
     93         s.show() != PresenceStatus::SHOW_OFFLINE) {
     94       result->AddElement(new XmlElement(QN_SHOW));
     95       switch (s.show()) {
     96         default:
     97           result->AddText(STR_SHOW_AWAY, 1);
     98           break;
     99         case PresenceStatus::SHOW_XA:
    100           result->AddText(STR_SHOW_XA, 1);
    101           break;
    102         case PresenceStatus::SHOW_DND:
    103           result->AddText(STR_SHOW_DND, 1);
    104           break;
    105         case PresenceStatus::SHOW_CHAT:
    106           result->AddText(STR_SHOW_CHAT, 1);
    107           break;
    108       }
    109     }
    110 
    111     result->AddElement(new XmlElement(QN_STATUS));
    112     result->AddText(s.status(), 1);
    113 
    114     if (!s.nick().empty()) {
    115       result->AddElement(new XmlElement(QN_NICKNAME));
    116       result->AddText(s.nick(), 1);
    117     }
    118 
    119     std::string pri;
    120     talk_base::ToString(s.priority(), &pri);
    121 
    122     result->AddElement(new XmlElement(QN_PRIORITY));
    123     result->AddText(pri, 1);
    124 
    125     if (s.know_capabilities()) {
    126       result->AddElement(new XmlElement(QN_CAPS_C, true));
    127       result->AddAttr(QN_NODE, s.caps_node(), 1);
    128       result->AddAttr(QN_VER, s.version(), 1);
    129 
    130       std::string caps;
    131       caps.append(s.voice_capability() ? "voice-v1" : "");
    132       caps.append(s.pmuc_capability() ? " pmuc-v1" : "");
    133       caps.append(s.video_capability() ? " video-v1" : "");
    134       caps.append(s.camera_capability() ? " camera-v1" : "");
    135 
    136       result->AddAttr(QN_EXT, caps, 1);
    137     }
    138 
    139     // Put the delay mark on the presence according to JEP-0091
    140     {
    141       result->AddElement(new XmlElement(kQnDelayX, true));
    142 
    143       // This here is why we *love* the C runtime
    144       time_t current_time_seconds;
    145       time(&current_time_seconds);
    146       struct tm* current_time = gmtime(&current_time_seconds);
    147       char output[256];
    148       strftime(output, ARRAY_SIZE(output), "%Y%m%dT%H:%M:%S", current_time);
    149       result->AddAttr(kQnStamp, output, 1);
    150     }
    151   }
    152 
    153   return result;
    154 }
    155 
    156 
    157 }
    158