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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">// Copyright 2016 Google Inc. All rights reserved.</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">//</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// Use of this source code is governed by a BSD-style</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">// license that can be found in the LICENSE file or at</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">// https://developers.google.com/open-source/licenses/bsd</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> </div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="preprocessor">#include "packager/file/udp_options.h"</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> </div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="preprocessor">#include <gflags/gflags.h></span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> </div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#include "packager/base/strings/string_number_conversions.h"</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#include "packager/base/strings/string_split.h"</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> </div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> DEFINE_string(udp_interface_address,</div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span>  <span class="stringliteral">""</span>,</div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span>  <span class="stringliteral">"IP address of the interface over which to receive UDP unicast"</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span>  <span class="stringliteral">" or multicast streams"</span>);</div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> </div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="keyword">namespace </span><a class="code" href="../../d8/daf/namespaceshaka.html">shaka</a> {</div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> </div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="keyword">namespace </span>{</div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> </div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="keyword">enum</span> FieldType {</div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  kUnknownField = 0,</div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  kReuseField,</div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  kInterfaceAddressField,</div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  kMulticastSourceField,</div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  kTimeoutField,</div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> };</div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> </div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="keyword">struct </span>FieldNameToTypeMapping {</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  <span class="keyword">const</span> <span class="keywordtype">char</span>* field_name;</div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  FieldType field_type;</div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> };</div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> </div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="keyword">const</span> FieldNameToTypeMapping kFieldNameTypeMappings[] = {</div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  {<span class="stringliteral">"reuse"</span>, kReuseField},</div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  {<span class="stringliteral">"interface"</span>, kInterfaceAddressField},</div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  {<span class="stringliteral">"source"</span>, kMulticastSourceField},</div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  {<span class="stringliteral">"timeout"</span>, kTimeoutField},</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> };</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span> </div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span> FieldType GetFieldType(<span class="keyword">const</span> std::string& field_name) {</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> idx = 0; idx < arraysize(kFieldNameTypeMappings); ++idx) {</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="keywordflow">if</span> (field_name == kFieldNameTypeMappings[idx].field_name)</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keywordflow">return</span> kFieldNameTypeMappings[idx].field_type;</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  }</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keywordflow">return</span> kUnknownField;</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span> }</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span> </div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="keywordtype">bool</span> StringToAddressAndPort(base::StringPiece addr_and_port,</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  std::string* addr,</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  uint16_t* port) {</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  DCHECK(addr);</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  DCHECK(port);</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span> </div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> colon_pos = addr_and_port.find(<span class="charliteral">':'</span>);</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="keywordflow">if</span> (colon_pos == base::StringPiece::npos) {</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  }</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  *addr = addr_and_port.substr(0, colon_pos).as_string();</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="keywordtype">unsigned</span> port_value;</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="keywordflow">if</span> (!base::StringToUint(addr_and_port.substr(colon_pos + 1), &port_value) ||</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  (port_value > 65535)) {</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  }</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  *port = port_value;</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span> }</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span> </div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span> } <span class="comment">// namespace</span></div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span> </div><div class="line"><a name="l00073"></a><span class="lineno"><a class="line" href="../../d9/dfe/classshaka_1_1UdpOptions.html#a3dff92e7ffb1ed0864dd87842aa2ad03"> 73</a></span> std::unique_ptr<UdpOptions> <a class="code" href="../../d9/dfe/classshaka_1_1UdpOptions.html#a3dff92e7ffb1ed0864dd87842aa2ad03">UdpOptions::ParseFromString</a>(</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  base::StringPiece udp_url) {</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  std::unique_ptr<UdpOptions> options(<span class="keyword">new</span> <a class="code" href="../../d9/dfe/classshaka_1_1UdpOptions.html">UdpOptions</a>);</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span> </div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> question_mark_pos = udp_url.find(<span class="charliteral">'?'</span>);</div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  base::StringPiece address_str = udp_url.substr(0, question_mark_pos);</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span> </div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="keywordflow">if</span> (question_mark_pos != base::StringPiece::npos) {</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  base::StringPiece options_str = udp_url.substr(question_mark_pos + 1);</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span> </div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  base::StringPairs pairs;</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keywordflow">if</span> (!base::SplitStringIntoKeyValuePairs(options_str, <span class="charliteral">'='</span>, <span class="charliteral">'&'</span>, &pairs)) {</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  LOG(ERROR) << <span class="stringliteral">"Invalid udp options name/value pairs "</span> << options_str;</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="keywordflow">return</span> <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  }</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span>& pair : pairs) {</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="keywordflow">switch</span> (GetFieldType(pair.first)) {</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="keywordflow">case</span> kReuseField: {</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <span class="keywordtype">int</span> reuse_value = 0;</div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <span class="keywordflow">if</span> (!base::StringToInt(pair.second, &reuse_value)) {</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  LOG(ERROR) << <span class="stringliteral">"Invalid udp option for reuse field "</span> << pair.second;</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="keywordflow">return</span> <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  }</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  options->reuse_ = reuse_value > 0;</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  }</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <span class="keywordflow">case</span> kInterfaceAddressField:</div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  options->interface_address_ = pair.second;</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="keywordflow">case</span> kTimeoutField:</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="keywordflow">if</span> (!base::StringToUint(pair.second, &options->timeout_us_)) {</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  LOG(ERROR) << <span class="stringliteral">"Invalid udp option for timeout field "</span></div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  << pair.second;</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="keywordflow">return</span> <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  }</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <span class="keywordflow">case</span> kMulticastSourceField:</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  options->source_address_ = pair.second;</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  options->is_source_specific_multicast_ = <span class="keyword">true</span>;</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <span class="keywordflow">default</span>:</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  LOG(ERROR) << <span class="stringliteral">"Unknown field in udp options (\""</span> << pair.first</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  << <span class="stringliteral">"\")."</span>;</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="keywordflow">return</span> <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  }</div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  }</div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  }</div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span> </div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="keywordflow">if</span> (!FLAGS_udp_interface_address.empty()) {</div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  LOG(WARNING) << <span class="stringliteral">"--udp_interface_address is deprecated. Consider switching "</span></div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <span class="stringliteral">"to udp options instead, something like "</span></div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="stringliteral">"udp:://ip:port?interface=interface_ip."</span>;</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  options->interface_address_ = FLAGS_udp_interface_address;</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  }</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span> </div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="keywordflow">if</span> (!StringToAddressAndPort(address_str, &options->address_,</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  &options->port_)) {</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  LOG(ERROR) << <span class="stringliteral">"Malformed address:port UDP url "</span> << address_str;</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <span class="keywordflow">return</span> <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  }</div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <span class="keywordflow">return</span> options;</div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span> }</div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span> </div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span> } <span class="comment">// namespace shaka</span></div><div class="ttc" id="classshaka_1_1UdpOptions_html_a3dff92e7ffb1ed0864dd87842aa2ad03"><div class="ttname"><a href="../../d9/dfe/classshaka_1_1UdpOptions.html#a3dff92e7ffb1ed0864dd87842aa2ad03">shaka::UdpOptions::ParseFromString</a></div><div class="ttdeci">static std::unique_ptr< UdpOptions > ParseFromString(base::StringPiece udp_url)</div><div class="ttdef"><b>Definition:</b> <a href="../../da/d1d/udp__options_8cc_source.html#l00073">udp_options.cc:73</a></div></div>
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<div class="ttc" id="namespaceshaka_html"><div class="ttname"><a href="../../d8/daf/namespaceshaka.html">shaka</a></div><div class="ttdoc">All the methods that are virtual are virtual for mocking. </div><div class="ttdef"><b>Definition:</b> <a href="../../d4/d15/gflags__hex__bytes_8cc_source.html#l00011">gflags_hex_bytes.cc:11</a></div></div>
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<div class="ttc" id="classshaka_1_1UdpOptions_html"><div class="ttname"><a href="../../d9/dfe/classshaka_1_1UdpOptions.html">shaka::UdpOptions</a></div><div class="ttdoc">Options parsed from UDP url string of the form: udp://ip:port[?options]. </div><div class="ttdef"><b>Definition:</b> <a href="../../de/dbf/udp__options_8h_source.html#l00015">udp_options.h:15</a></div></div>
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