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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="keyword">using</span> System;</div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="keyword">using</span> System.Collections.Generic;</div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="keyword">using</span> System.IO;</div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="keyword">using</span> System.Security.Cryptography;</div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="keyword">using</span> System.Text;</div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="keyword">using</span> System.Xml;</div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> </div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="keyword">namespace </span><a class="code" href="../../d7/dcd/namespace_m_t_s_c.html">MTSC</a></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> {</div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span>  <span class="keyword">static</span> <span class="keyword">class </span>HelperFunctions</div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span>  {</div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor"> #region XML</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>  <span class="keyword">public</span> <span class="keyword">static</span> <span class="keywordtype">void</span> FromXmlString(<span class="keyword">this</span> RSA rsa, <span class="keywordtype">string</span> xmlString)</div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span>  {</div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span>  RSAParameters parameters = <span class="keyword">new</span> RSAParameters();</div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> </div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span>  XmlDocument xmlDoc = <span class="keyword">new</span> XmlDocument();</div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span>  xmlDoc.LoadXml(xmlString);</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="keywordflow">if</span> (xmlDoc.DocumentElement.Name.Equals(<span class="stringliteral">"RSAKeyValue"</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="keywordflow">foreach</span> (XmlNode node <span class="keywordflow">in</span> xmlDoc.DocumentElement.ChildNodes)</div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  {</div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  <span class="keywordflow">switch</span> (node.Name)</div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  {</div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  <span class="keywordflow">case</span> <span class="stringliteral">"Modulus"</span>: parameters.Modulus = (<span class="keywordtype">string</span>.IsNullOrEmpty(node.InnerText) ? null : Convert.FromBase64String(node.InnerText)); <span class="keywordflow">break</span>;</div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  <span class="keywordflow">case</span> <span class="stringliteral">"Exponent"</span>: parameters.Exponent = (<span class="keywordtype">string</span>.IsNullOrEmpty(node.InnerText) ? null : Convert.FromBase64String(node.InnerText)); <span class="keywordflow">break</span>;</div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  <span class="keywordflow">case</span> <span class="stringliteral">"P"</span>: parameters.P = (<span class="keywordtype">string</span>.IsNullOrEmpty(node.InnerText) ? null : Convert.FromBase64String(node.InnerText)); <span class="keywordflow">break</span>;</div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  <span class="keywordflow">case</span> <span class="stringliteral">"Q"</span>: parameters.Q = (<span class="keywordtype">string</span>.IsNullOrEmpty(node.InnerText) ? null : Convert.FromBase64String(node.InnerText)); <span class="keywordflow">break</span>;</div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  <span class="keywordflow">case</span> <span class="stringliteral">"DP"</span>: parameters.DP = (<span class="keywordtype">string</span>.IsNullOrEmpty(node.InnerText) ? null : Convert.FromBase64String(node.InnerText)); <span class="keywordflow">break</span>;</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  <span class="keywordflow">case</span> <span class="stringliteral">"DQ"</span>: parameters.DQ = (<span class="keywordtype">string</span>.IsNullOrEmpty(node.InnerText) ? null : Convert.FromBase64String(node.InnerText)); <span class="keywordflow">break</span>;</div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  <span class="keywordflow">case</span> <span class="stringliteral">"InverseQ"</span>: parameters.InverseQ = (<span class="keywordtype">string</span>.IsNullOrEmpty(node.InnerText) ? null : Convert.FromBase64String(node.InnerText)); <span class="keywordflow">break</span>;</div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  <span class="keywordflow">case</span> <span class="stringliteral">"D"</span>: parameters.D = (<span class="keywordtype">string</span>.IsNullOrEmpty(node.InnerText) ? null : Convert.FromBase64String(node.InnerText)); <span class="keywordflow">break</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>  }</div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  }</div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  {</div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="keywordflow">throw</span> <span class="keyword">new</span> Exception(<span class="stringliteral">"Invalid XML RSA key."</span>);</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>  rsa.ImportParameters(parameters);</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  }</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span> </div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keyword">public</span> <span class="keyword">static</span> <span class="keywordtype">string</span> ToXmlString(<span class="keyword">this</span> RSA rsa, <span class="keywordtype">bool</span> includePrivateParameters)</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>  RSAParameters parameters = rsa.ExportParameters(includePrivateParameters);</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>  <span class="keywordflow">return</span> <span class="keywordtype">string</span>.Format(<span class="stringliteral">"<RSAKeyValue><Modulus>{0}</Modulus><Exponent>{1}</Exponent><P>{2}</P><Q>{3}</Q><DP>{4}</DP><DQ>{5}</DQ><InverseQ>{6}</InverseQ><D>{7}</D></RSAKeyValue>"</span>,</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  parameters.Modulus != <span class="keyword">null</span> ? Convert.ToBase64String(parameters.Modulus) : <span class="keyword">null</span>,</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  parameters.Exponent != <span class="keyword">null</span> ? Convert.ToBase64String(parameters.Exponent) : <span class="keyword">null</span>,</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  parameters.P != <span class="keyword">null</span> ? Convert.ToBase64String(parameters.P) : <span class="keyword">null</span>,</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  parameters.Q != <span class="keyword">null</span> ? Convert.ToBase64String(parameters.Q) : <span class="keyword">null</span>,</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  parameters.DP != <span class="keyword">null</span> ? Convert.ToBase64String(parameters.DP) : <span class="keyword">null</span>,</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  parameters.DQ != <span class="keyword">null</span> ? Convert.ToBase64String(parameters.DQ) : <span class="keyword">null</span>,</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  parameters.InverseQ != <span class="keyword">null</span> ? Convert.ToBase64String(parameters.InverseQ) : <span class="keyword">null</span>,</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  parameters.D != <span class="keyword">null</span> ? Convert.ToBase64String(parameters.D) : <span class="keyword">null</span>);</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  }</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keyword">public</span> <span class="keyword">static</span> <span class="keywordtype">bool</span> IsSubPathOf(<span class="keyword">this</span> <span class="keywordtype">string</span> path, <span class="keywordtype">string</span> baseDirPath)</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>  <span class="keywordtype">string</span> normalizedPath = Path.GetFullPath(path.Replace(<span class="charliteral">'/'</span>, <span class="charliteral">'\\'</span>)</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  .WithEnding(<span class="stringliteral">"\\"</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>  <span class="keywordtype">string</span> normalizedBaseDirPath = Path.GetFullPath(baseDirPath.Replace(<span class="charliteral">'/'</span>, <span class="charliteral">'\\'</span>)</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  .WithEnding(<span class="stringliteral">"\\"</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"> 73</span>  <span class="keywordflow">return</span> normalizedPath.StartsWith(normalizedBaseDirPath, StringComparison.OrdinalIgnoreCase);</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  }</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="keyword">public</span> <span class="keyword">static</span> <span class="keywordtype">string</span> WithEnding(<span class="keyword">this</span> <span class="keywordtype">string</span> str, <span class="keywordtype">string</span> ending)</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  {</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <span class="keywordflow">if</span> (str == <span class="keyword">null</span>)</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <span class="keywordflow">return</span> ending;</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span> </div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="keywordtype">string</span> result = str;</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span> </div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="comment">// Right() is 1-indexed, so include these cases</span></div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="comment">// * Append no characters</span></div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="comment">// * Append up to N characters, where N is ending length</span></div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i <= ending.Length; i++)</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  {</div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <span class="keywordtype">string</span> tmp = result + ending.Right(i);</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <span class="keywordflow">if</span> (tmp.EndsWith(ending))</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="keywordflow">return</span> tmp;</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> </div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="keywordflow">return</span> result;</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  }</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="keyword">public</span> <span class="keyword">static</span> <span class="keywordtype">string</span> Right(<span class="keyword">this</span> <span class="keywordtype">string</span> value, <span class="keywordtype">int</span> length)</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  {</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="keywordflow">if</span> (value == <span class="keyword">null</span>)</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  {</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="keywordflow">throw</span> <span class="keyword">new</span> ArgumentNullException(<span class="stringliteral">"value"</span>);</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  }</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <span class="keywordflow">if</span> (length < 0)</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  {</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keywordflow">throw</span> <span class="keyword">new</span> ArgumentOutOfRangeException(<span class="stringliteral">"length"</span>, length, <span class="stringliteral">"Length is less than zero"</span>);</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  }</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span> </div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <span class="keywordflow">return</span> (length < value.Length) ? value.Substring(value.Length - length) : value;</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  }</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span> <span class="preprocessor"> #endregion</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="ttc" id="namespace_m_t_s_c_html"><div class="ttname"><a href="../../d7/dcd/namespace_m_t_s_c.html">MTSC</a></div><div class="ttdef"><b>Definition:</b> <a href="../../db/d43/_client_8cs_source.html#l00014">Client.cs:14</a></div></div>
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