/* * libjingle * Copyright 2004--2005, Google Inc. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "talk/examples/call/presencepushtask.h" #include "talk/examples/call/muc.h" #include "talk/xmpp/constants.h" #include "webrtc/base/stringencode.h" namespace buzz { // string helper functions ----------------------------------------------------- static bool IsXmlSpace(int ch) { return ch == ' ' || ch == '\n' || ch == '\r' || ch == '\t'; } static bool ListContainsToken(const std::string & list, const std::string & token) { size_t i = list.find(token); if (i == std::string::npos || token.empty()) return false; bool boundary_before = (i == 0 || IsXmlSpace(list[i - 1])); bool boundary_after = (i == list.length() - token.length() || IsXmlSpace(list[i + token.length()])); return boundary_before && boundary_after; } bool PresencePushTask::HandleStanza(const XmlElement * stanza) { if (stanza->Name() != QN_PRESENCE) return false; QueueStanza(stanza); return true; } static bool IsUtf8FirstByte(int c) { return (((c)&0x80)==0) || // is single byte ((unsigned char)((c)-0xc0)<0x3e); // or is lead byte } int PresencePushTask::ProcessStart() { const XmlElement * stanza = NextStanza(); if (stanza == NULL) return STATE_BLOCKED; Jid from(stanza->Attr(QN_FROM)); std::map::const_iterator elem = client_->mucs().find(from.BareJid()); if (elem == client_->mucs().end()) { HandlePresence(from, stanza); } else { HandleMucPresence(elem->second, from, stanza); } return STATE_START; } void PresencePushTask::HandlePresence(const Jid& from, const XmlElement* stanza) { if (stanza->Attr(QN_TYPE) == STR_ERROR) return; PresenceStatus s; FillStatus(from, stanza, &s); SignalStatusUpdate(s); } void PresencePushTask::HandleMucPresence(buzz::Muc* muc, const Jid& from, const XmlElement* stanza) { if (from == muc->local_jid()) { if (!stanza->HasAttr(QN_TYPE)) { // We joined the MUC. const XmlElement* elem = stanza->FirstNamed(QN_MUC_USER_X); // Status code=110 or 100 is not guaranteed to be present, so we // only check the item element and Muc join status. if (elem) { if (elem->FirstNamed(QN_MUC_USER_ITEM) && muc->state() == buzz::Muc::MUC_JOINING) { SignalMucJoined(muc->jid()); } } } else { // We've been kicked. Bye. int error = 0; if (stanza->Attr(QN_TYPE) == STR_ERROR) { const XmlElement* elem = stanza->FirstNamed(QN_ERROR); if (elem && elem->HasAttr(QN_CODE)) { error = atoi(elem->Attr(QN_CODE).c_str()); } } SignalMucLeft(muc->jid(), error); } } else { MucPresenceStatus s; FillMucStatus(from, stanza, &s); SignalMucStatusUpdate(muc->jid(), s); } } void PresencePushTask::FillStatus(const Jid& from, const XmlElement* stanza, PresenceStatus* s) { s->set_jid(from); if (stanza->Attr(QN_TYPE) == STR_UNAVAILABLE) { s->set_available(false); } else { s->set_available(true); const XmlElement * status = stanza->FirstNamed(QN_STATUS); if (status != NULL) { s->set_status(status->BodyText()); // Truncate status messages longer than 300 bytes if (s->status().length() > 300) { size_t len = 300; // Be careful not to split legal utf-8 chars in half while (!IsUtf8FirstByte(s->status()[len]) && len > 0) { len -= 1; } std::string truncated(s->status(), 0, len); s->set_status(truncated); } } const XmlElement * priority = stanza->FirstNamed(QN_PRIORITY); if (priority != NULL) { int pri; if (rtc::FromString(priority->BodyText(), &pri)) { s->set_priority(pri); } } const XmlElement * show = stanza->FirstNamed(QN_SHOW); if (show == NULL || show->FirstChild() == NULL) { s->set_show(PresenceStatus::SHOW_ONLINE); } else { if (show->BodyText() == "away") { s->set_show(PresenceStatus::SHOW_AWAY); } else if (show->BodyText() == "xa") { s->set_show(PresenceStatus::SHOW_XA); } else if (show->BodyText() == "dnd") { s->set_show(PresenceStatus::SHOW_DND); } else if (show->BodyText() == "chat") { s->set_show(PresenceStatus::SHOW_CHAT); } else { s->set_show(PresenceStatus::SHOW_ONLINE); } } const XmlElement * caps = stanza->FirstNamed(QN_CAPS_C); if (caps != NULL) { std::string node = caps->Attr(QN_NODE); std::string ver = caps->Attr(QN_VER); std::string exts = caps->Attr(QN_EXT); s->set_know_capabilities(true); s->set_caps_node(node); s->set_version(ver); if (ListContainsToken(exts, "voice-v1")) { s->set_voice_capability(true); } if (ListContainsToken(exts, "video-v1")) { s->set_video_capability(true); } } const XmlElement* delay = stanza->FirstNamed(kQnDelayX); if (delay != NULL) { // Ideally we would parse this according to the Psuedo ISO-8601 rules // that are laid out in JEP-0082: // http://www.jabber.org/jeps/jep-0082.html std::string stamp = delay->Attr(kQnStamp); s->set_sent_time(stamp); } const XmlElement* nick = stanza->FirstNamed(QN_NICKNAME); if (nick) { s->set_nick(nick->BodyText()); } } } void PresencePushTask::FillMucStatus(const Jid& from, const XmlElement* stanza, MucPresenceStatus* s) { FillStatus(from, stanza, s); } }