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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 "talk/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   return CreateIceCandidate(sdp_mid, sdp_mline_index, sdp, NULL);
     41 }
     42 
     43 IceCandidateInterface* CreateIceCandidate(const std::string& sdp_mid,
     44                                           int sdp_mline_index,
     45                                           const std::string& sdp,
     46                                           SdpParseError* error) {
     47   JsepIceCandidate* jsep_ice = new JsepIceCandidate(sdp_mid, sdp_mline_index);
     48   if (!jsep_ice->Initialize(sdp, error)) {
     49     delete jsep_ice;
     50     return NULL;
     51   }
     52   return jsep_ice;
     53 }
     54 
     55 JsepIceCandidate::JsepIceCandidate(const std::string& sdp_mid,
     56                                    int sdp_mline_index)
     57     : sdp_mid_(sdp_mid),
     58       sdp_mline_index_(sdp_mline_index) {
     59 }
     60 
     61 JsepIceCandidate::JsepIceCandidate(const std::string& sdp_mid,
     62                                    int sdp_mline_index,
     63                                    const cricket::Candidate& candidate)
     64     : sdp_mid_(sdp_mid),
     65       sdp_mline_index_(sdp_mline_index),
     66       candidate_(candidate) {
     67 }
     68 
     69 JsepIceCandidate::~JsepIceCandidate() {
     70 }
     71 
     72 bool JsepIceCandidate::Initialize(const std::string& sdp, SdpParseError* err) {
     73   return SdpDeserializeCandidate(sdp, this, err);
     74 }
     75 
     76 bool JsepIceCandidate::ToString(std::string* out) const {
     77   if (!out)
     78     return false;
     79   *out = SdpSerializeCandidate(*this);
     80   return !out->empty();
     81 }
     82 
     83 JsepCandidateCollection::~JsepCandidateCollection() {
     84   for (std::vector<JsepIceCandidate*>::iterator it = candidates_.begin();
     85        it != candidates_.end(); ++it) {
     86     delete *it;
     87   }
     88 }
     89 
     90 bool JsepCandidateCollection::HasCandidate(
     91     const IceCandidateInterface* candidate) const {
     92   bool ret = false;
     93   for (std::vector<JsepIceCandidate*>::const_iterator it = candidates_.begin();
     94       it != candidates_.end(); ++it) {
     95     if ((*it)->sdp_mid() == candidate->sdp_mid() &&
     96         (*it)->sdp_mline_index() == candidate->sdp_mline_index() &&
     97         (*it)->candidate().IsEquivalent(candidate->candidate())) {
     98       ret = true;
     99       break;
    100     }
    101   }
    102   return ret;
    103 }
    104 
    105 }  // namespace webrtc
    106