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      1 /*
      2  * libjingle
      3  * Copyright 2012 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 "talk/app/webrtc/jsepicecandidate.h"
     29 
     30 #include <vector>
     31 
     32 #include "talk/app/webrtc/webrtcsdp.h"
     33 #include "webrtc/base/stringencode.h"
     34 
     35 namespace webrtc {
     36 
     37 IceCandidateInterface* CreateIceCandidate(const std::string& sdp_mid,
     38                                           int sdp_mline_index,
     39                                           const std::string& sdp,
     40                                           SdpParseError* error) {
     41   JsepIceCandidate* jsep_ice = new JsepIceCandidate(sdp_mid, sdp_mline_index);
     42   if (!jsep_ice->Initialize(sdp, error)) {
     43     delete jsep_ice;
     44     return NULL;
     45   }
     46   return jsep_ice;
     47 }
     48 
     49 JsepIceCandidate::JsepIceCandidate(const std::string& sdp_mid,
     50                                    int sdp_mline_index)
     51     : sdp_mid_(sdp_mid),
     52       sdp_mline_index_(sdp_mline_index) {
     53 }
     54 
     55 JsepIceCandidate::JsepIceCandidate(const std::string& sdp_mid,
     56                                    int sdp_mline_index,
     57                                    const cricket::Candidate& candidate)
     58     : sdp_mid_(sdp_mid),
     59       sdp_mline_index_(sdp_mline_index),
     60       candidate_(candidate) {
     61 }
     62 
     63 JsepIceCandidate::~JsepIceCandidate() {
     64 }
     65 
     66 bool JsepIceCandidate::Initialize(const std::string& sdp, SdpParseError* err) {
     67   return SdpDeserializeCandidate(sdp, this, err);
     68 }
     69 
     70 bool JsepIceCandidate::ToString(std::string* out) const {
     71   if (!out)
     72     return false;
     73   *out = SdpSerializeCandidate(*this);
     74   return !out->empty();
     75 }
     76 
     77 JsepCandidateCollection::~JsepCandidateCollection() {
     78   for (std::vector<JsepIceCandidate*>::iterator it = candidates_.begin();
     79        it != candidates_.end(); ++it) {
     80     delete *it;
     81   }
     82 }
     83 
     84 bool JsepCandidateCollection::HasCandidate(
     85     const IceCandidateInterface* candidate) const {
     86   bool ret = false;
     87   for (std::vector<JsepIceCandidate*>::const_iterator it = candidates_.begin();
     88       it != candidates_.end(); ++it) {
     89     if ((*it)->sdp_mid() == candidate->sdp_mid() &&
     90         (*it)->sdp_mline_index() == candidate->sdp_mline_index() &&
     91         (*it)->candidate().IsEquivalent(candidate->candidate())) {
     92       ret = true;
     93       break;
     94     }
     95   }
     96   return ret;
     97 }
     98 
     99 }  // namespace webrtc
    100