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<div id="projectname">ESP32/ESP8266 Firewall<span id="projectnumber">&#160;1.0.0</span>
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<div id="projectbrief">a software firewall for ESP23 or ESP8266</div>
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<div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="preprocessor">#include &quot;API.hpp&quot;</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span> </div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="keyword">namespace </span>fw</div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span>{</div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"><a class="line" href="classfw_1_1_a_p_i.html#a033d5efd077dfad456cb6e6e7dd2baca"> 5</a></span> <a class="code hl_function" href="classfw_1_1_a_p_i.html#a033d5efd077dfad456cb6e6e7dd2baca">API::API</a>(<a class="code hl_class" href="classfw_1_1_firewall.html">fw::Firewall</a> *firewall, <span class="keyword">const</span> <span class="keywordtype">char</span> *cert, <span class="keyword">const</span> <span class="keywordtype">char</span> *key, <span class="keyword">const</span> <span class="keywordtype">char</span> *username, <span class="keyword">const</span> <span class="keywordtype">char</span> *password, <span class="keyword">const</span> String ip, <span class="keyword">const</span> uint16_t port)</div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span> {</div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span> this-&gt;firewall = firewall;</div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span> this-&gt;api_ip = ip;</div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span> this-&gt;api_port = port;</div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span> <span class="keywordflow">if</span> (this-&gt;setup_auth(username, password) == ERROR)</div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span> endless_loop();</div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="preprocessor">#ifdef ESP8266</span></div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span> this-&gt;server = <span class="keyword">new</span> ESP8266WebServerSecure(port);</div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span> this-&gt;serverCache = <span class="keyword">new</span> ServerSessions(5);</div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span><span class="preprocessor">#else</span></div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span> this-&gt;server = <span class="keyword">new</span> WebServer(port);</div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span> this-&gt;setup_routing(cert, key);</div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span> this-&gt;server-&gt;begin();</div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span> Serial.printf(<span class="stringliteral">&quot;%s endpoints -&gt; %s/api\n&quot;</span>, TAG, this-&gt;get_url_base().c_str());</div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span><span class="preprocessor">#if !defined(ESP8266)</span></div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span> <span class="keywordflow">while</span> (<span class="keyword">true</span>)</div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span> {</div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span> this-&gt;server-&gt;handleClient();</div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span> <span class="comment">// https://docs.espressif.com/projects/arduino-esp32/en/latest/esp-idf_component.html</span></div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span> sleep(1);</div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span> }</div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span> }</div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span> </div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"><a class="line" href="classfw_1_1_a_p_i.html#a66ac0bd592bb08d069aea199668670ab"> 31</a></span> <a class="code hl_function" href="classfw_1_1_a_p_i.html#a66ac0bd592bb08d069aea199668670ab">API::~API</a>()</div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span> {</div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span> this-&gt;server-&gt;stop();</div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span> }</div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span> </div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span><span class="preprocessor">#ifdef ESP8266</span></div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span> <span class="keywordtype">void</span> API::handle_client()</div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span> {</div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span> this-&gt;server-&gt;handleClient();</div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span> }</div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> </div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> String API::get_url_base()</div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> {</div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span><span class="preprocessor">#ifdef ESP8266</span></div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> <span class="keywordflow">return</span> <span class="stringliteral">&quot;https://&quot;</span> + this-&gt;api_ip + <span class="stringliteral">&quot;:&quot;</span> + this-&gt;api_port;</div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span><span class="preprocessor">#else</span></div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> <span class="keywordflow">return</span> <span class="stringliteral">&quot;http://&quot;</span> + this-&gt;api_ip + <span class="stringliteral">&quot;:&quot;</span> + this-&gt;api_port;</div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> }</div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> </div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> ok_t API::setup_auth(<span class="keyword">const</span> <span class="keywordtype">char</span> *username, <span class="keyword">const</span> <span class="keywordtype">char</span> *password)</div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> {</div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> <span class="keywordflow">if</span> (!username || *username == 0x00 || strlen(username) &gt; CREDENTIALS_LENGTH)</div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> {</div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> Serial.printf(<span class="stringliteral">&quot;%s Username too long or missing!\n&quot;</span>, TAG);</div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> <span class="keywordflow">return</span> ERROR;</div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span> }</div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span> strncpy(credentials.username, username, CREDENTIALS_LENGTH);</div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> <span class="keywordflow">if</span> (!password || *password == 0x00 || strlen(password) &gt; CREDENTIALS_LENGTH)</div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> {</div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> Serial.printf(<span class="stringliteral">&quot;%s Password too long or missing!\n&quot;</span>, TAG);</div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> <span class="keywordflow">return</span> ERROR;</div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> }</div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> strncpy(credentials.password, password, CREDENTIALS_LENGTH);</div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> <span class="keywordflow">return</span> SUCCESS;</div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span> }</div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> </div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> auth_t API::check_auth()</div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span> {</div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> <span class="keywordflow">if</span> (server-&gt;authenticate(this-&gt;credentials.username, this-&gt;credentials.password))</div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> {</div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> <span class="keywordflow">return</span> AUTHENTICATED;</div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> }</div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> this-&gt;json_message_response(<span class="stringliteral">&quot;unauthorized&quot;</span>, 403);</div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> <span class="keywordflow">return</span> DENIED;</div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> }</div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> </div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> <span class="keywordtype">void</span> API::setup_routing(<span class="keyword">const</span> <span class="keywordtype">char</span> *cert, <span class="keyword">const</span> <span class="keywordtype">char</span> *key)</div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> {</div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span><span class="preprocessor">#ifdef ESP8266</span></div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span> this-&gt;server-&gt;getServer().setRSACert(<span class="keyword">new</span> BearSSL::X509List(cert), <span class="keyword">new</span> BearSSL::PrivateKey(key));</div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> this-&gt;server-&gt;getServer().setCache(serverCache);</div>
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> this-&gt;server-&gt;on(<span class="stringliteral">&quot;/api/firewall/rules&quot;</span>, HTTP_GET, std::bind(&amp;API::get_firewall_rules_handler, <span class="keyword">this</span>));</div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> this-&gt;server-&gt;on(UriBraces(<span class="stringliteral">&quot;/api/firewall/rules/{}&quot;</span>), HTTP_GET, std::bind(&amp;API::get_firewall_rule_handler, <span class="keyword">this</span>));</div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span> this-&gt;server-&gt;on(<span class="stringliteral">&quot;/api/firewall/rules&quot;</span>, HTTP_POST, std::bind(&amp;API::post_firewall_handler, <span class="keyword">this</span>));</div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span> this-&gt;server-&gt;on(UriBraces(<span class="stringliteral">&quot;/api/firewall/rules/{}&quot;</span>), HTTP_PUT, std::bind(&amp;API::put_firewall_handler, <span class="keyword">this</span>));</div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span> this-&gt;server-&gt;on(UriBraces(<span class="stringliteral">&quot;/api/firewall/rules/{}&quot;</span>), HTTP_DELETE, std::bind(&amp;API::delete_firewall_handler, <span class="keyword">this</span>));</div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> this-&gt;server-&gt;on(<span class="stringliteral">&quot;/api&quot;</span>, HTTP_GET, std::bind(&amp;API::get_endpoint_list_handler, <span class="keyword">this</span>));</div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> this-&gt;server-&gt;onNotFound(std::bind(&amp;API::not_found_handler, <span class="keyword">this</span>));</div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> </div>
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> add_endpoint_to_list(<span class="stringliteral">&quot;/api/firewall/rules&quot;</span>, <span class="stringliteral">&quot;GET&quot;</span>, <span class="stringliteral">&quot;Get all Firewall Rules&quot;</span>);</div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> add_endpoint_to_list(<span class="stringliteral">&quot;/api/firewall/rules/&lt;key&gt;&quot;</span>, <span class="stringliteral">&quot;GET&quot;</span>, <span class="stringliteral">&quot;Get Firewall Rule by key&quot;</span>);</div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> add_endpoint_to_list(<span class="stringliteral">&quot;/api/firewall/rules&quot;</span>, <span class="stringliteral">&quot;POST&quot;</span>, <span class="stringliteral">&quot;Create Firewall Rule&quot;</span>);</div>
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> add_endpoint_to_list(<span class="stringliteral">&quot;/api/firewall/rules/&lt;key&gt;&quot;</span>, <span class="stringliteral">&quot;PUT&quot;</span>, <span class="stringliteral">&quot;Update Firewall Rule by key&quot;</span>);</div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> add_endpoint_to_list(<span class="stringliteral">&quot;/api/firewall/rules/&lt;key&gt;&quot;</span>, <span class="stringliteral">&quot;DELETE&quot;</span>, <span class="stringliteral">&quot;Delete Firewall Rule by key&quot;</span>);</div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> }</div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> </div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> <span class="keywordtype">void</span> API::add_endpoint_to_list(<span class="keyword">const</span> String uri, <span class="keyword">const</span> <span class="keywordtype">char</span> *method, <span class="keyword">const</span> <span class="keywordtype">char</span> *description)</div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> {</div>
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> api_endpoint_t *temp;</div>
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> <span class="keyword">const</span> String url = get_url_base() + uri;</div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> </div>
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span> api_endpoint_t *api_ptr = (api_endpoint_t *)malloc(<span class="keyword">sizeof</span>(api_endpoint_t));</div>
<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span> strncpy(api_ptr-&gt;uri, url.c_str(), <span class="keyword">sizeof</span>(api_ptr-&gt;uri));</div>
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> strncpy(api_ptr-&gt;method, method, <span class="keyword">sizeof</span>(api_ptr-&gt;method));</div>
<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span> strncpy(api_ptr-&gt;description, description, <span class="keyword">sizeof</span>(api_ptr-&gt;description));</div>
<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span> </div>
<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span> <span class="keywordflow">if</span> (this-&gt;endpoint_head == NULL)</div>
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span> {</div>
<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span> this-&gt;endpoint_head = api_ptr;</div>
<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> api_ptr-&gt;next = NULL;</div>
<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span> <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span> }</div>
<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span> temp = this-&gt;endpoint_head;</div>
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span> <span class="keywordflow">while</span> (temp-&gt;next != NULL)</div>
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span> {</div>
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span> temp = temp-&gt;next;</div>
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span> }</div>
<div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span> temp-&gt;next = api_ptr;</div>
<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> api_ptr-&gt;next = NULL;</div>
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span> <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span> }</div>
<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span> </div>
<div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span> <span class="keywordtype">void</span> API::not_found_handler()</div>
<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span> {</div>
<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span> this-&gt;json_message_response(<span class="stringliteral">&quot;see &quot;</span> + get_url_base() + <span class="stringliteral">&quot;/api for available routes&quot;</span>, 404);</div>
<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span> }</div>
<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span> </div>
<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span> <span class="keywordtype">void</span> API::get_endpoint_list_handler()</div>
<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span> {</div>
<div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span> this-&gt;json_array_response(this-&gt;construct_json_api(), 200);</div>
<div class="line"><a id="l00134" name="l00134"></a><span class="lineno"> 134</span> }</div>
<div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span> </div>
<div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span> <span class="keywordtype">void</span> API::get_firewall_rule_handler()</div>
<div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span> {</div>
<div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span> <span class="keywordflow">if</span> (this-&gt;check_auth() == DENIED)</div>
<div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span> <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00140" name="l00140"></a><span class="lineno"> 140</span> String param = this-&gt;server-&gt;pathArg(0);</div>
<div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span> <span class="keywordtype">int</span> rule_number = atoi(param.c_str());</div>
<div class="line"><a id="l00142" name="l00142"></a><span class="lineno"> 142</span> firewall_rule_t *rule_ptr = firewall-&gt;get_rule_from_firewall(rule_number);</div>
<div class="line"><a id="l00143" name="l00143"></a><span class="lineno"> 143</span> <span class="keywordflow">if</span> (rule_ptr == NULL)</div>
<div class="line"><a id="l00144" name="l00144"></a><span class="lineno"> 144</span> this-&gt;json_message_response(<span class="stringliteral">&quot;rule does not exist&quot;</span>, 404);</div>
<div class="line"><a id="l00145" name="l00145"></a><span class="lineno"> 145</span> <span class="keywordflow">else</span></div>
<div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</span> this-&gt;json_generic_response(this-&gt;construct_json_firewall_rule(rule_ptr), 200);</div>
<div class="line"><a id="l00147" name="l00147"></a><span class="lineno"> 147</span> }</div>
<div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span> </div>
<div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span> <span class="keywordtype">void</span> API::get_firewall_rules_handler()</div>
<div class="line"><a id="l00150" name="l00150"></a><span class="lineno"> 150</span> {</div>
<div class="line"><a id="l00151" name="l00151"></a><span class="lineno"> 151</span> <span class="keywordflow">if</span> (this-&gt;check_auth() == DENIED)</div>
<div class="line"><a id="l00152" name="l00152"></a><span class="lineno"> 152</span> <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00153" name="l00153"></a><span class="lineno"> 153</span> this-&gt;json_array_response(this-&gt;construct_json_firewall(), 200);</div>
<div class="line"><a id="l00154" name="l00154"></a><span class="lineno"> 154</span> }</div>
<div class="line"><a id="l00155" name="l00155"></a><span class="lineno"> 155</span> </div>
<div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span> <span class="keywordtype">void</span> API::post_firewall_handler()</div>
<div class="line"><a id="l00157" name="l00157"></a><span class="lineno"> 157</span> {</div>
<div class="line"><a id="l00158" name="l00158"></a><span class="lineno"> 158</span> <span class="keywordflow">if</span> (this-&gt;check_auth() == DENIED)</div>
<div class="line"><a id="l00159" name="l00159"></a><span class="lineno"> 159</span> <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00160" name="l00160"></a><span class="lineno"> 160</span> <span class="keywordflow">if</span> (request_has_all_firewall_parameter())</div>
<div class="line"><a id="l00161" name="l00161"></a><span class="lineno"> 161</span> {</div>
<div class="line"><a id="l00162" name="l00162"></a><span class="lineno"> 162</span> String args[IPV4ADDRESS_LENGTH] = {};</div>
<div class="line"><a id="l00163" name="l00163"></a><span class="lineno"> 163</span> <span class="keywordflow">for</span> (uint8_t i = 0; i &lt; firewall_fields_amount; i++)</div>
<div class="line"><a id="l00164" name="l00164"></a><span class="lineno"> 164</span> {</div>
<div class="line"><a id="l00165" name="l00165"></a><span class="lineno"> 165</span> args[i] = this-&gt;server-&gt;arg(firewall_fields[i]);</div>
<div class="line"><a id="l00166" name="l00166"></a><span class="lineno"> 166</span> }</div>
<div class="line"><a id="l00167" name="l00167"></a><span class="lineno"> 167</span> firewall_rule_t *rule_ptr = firewall-&gt;add_rule_to_firewall(args);</div>
<div class="line"><a id="l00168" name="l00168"></a><span class="lineno"> 168</span> this-&gt;json_generic_response(this-&gt;construct_json_firewall_rule(rule_ptr), 201);</div>
<div class="line"><a id="l00169" name="l00169"></a><span class="lineno"> 169</span> }</div>
<div class="line"><a id="l00170" name="l00170"></a><span class="lineno"> 170</span> <span class="keywordflow">else</span></div>
<div class="line"><a id="l00171" name="l00171"></a><span class="lineno"> 171</span> {</div>
<div class="line"><a id="l00172" name="l00172"></a><span class="lineno"> 172</span> this-&gt;json_message_response(<span class="stringliteral">&quot;not enough parameter provided&quot;</span>, 400);</div>
<div class="line"><a id="l00173" name="l00173"></a><span class="lineno"> 173</span> }</div>
<div class="line"><a id="l00174" name="l00174"></a><span class="lineno"> 174</span> }</div>
<div class="line"><a id="l00175" name="l00175"></a><span class="lineno"> 175</span> </div>
<div class="line"><a id="l00176" name="l00176"></a><span class="lineno"> 176</span> <span class="keywordtype">void</span> API::put_firewall_handler()</div>
<div class="line"><a id="l00177" name="l00177"></a><span class="lineno"> 177</span> {</div>
<div class="line"><a id="l00178" name="l00178"></a><span class="lineno"> 178</span> <span class="keywordflow">if</span> (this-&gt;check_auth() == DENIED)</div>
<div class="line"><a id="l00179" name="l00179"></a><span class="lineno"> 179</span> <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00180" name="l00180"></a><span class="lineno"> 180</span> String param = this-&gt;server-&gt;pathArg(0);</div>
<div class="line"><a id="l00181" name="l00181"></a><span class="lineno"> 181</span> <span class="keywordtype">int</span> rule_number = atoi(param.c_str());</div>
<div class="line"><a id="l00182" name="l00182"></a><span class="lineno"> 182</span> <span class="keywordflow">if</span> (request_has_all_firewall_parameter())</div>
<div class="line"><a id="l00183" name="l00183"></a><span class="lineno"> 183</span> {</div>
<div class="line"><a id="l00184" name="l00184"></a><span class="lineno"> 184</span> String args[IPV4ADDRESS_LENGTH] = {};</div>
<div class="line"><a id="l00185" name="l00185"></a><span class="lineno"> 185</span> <span class="keywordflow">for</span> (uint8_t i = 0; i &lt; firewall_fields_amount; i++)</div>
<div class="line"><a id="l00186" name="l00186"></a><span class="lineno"> 186</span> {</div>
<div class="line"><a id="l00187" name="l00187"></a><span class="lineno"> 187</span> args[i] = this-&gt;server-&gt;arg(firewall_fields[i]);</div>
<div class="line"><a id="l00188" name="l00188"></a><span class="lineno"> 188</span> }</div>
<div class="line"><a id="l00189" name="l00189"></a><span class="lineno"> 189</span> firewall_rule_t *rule_ptr = firewall-&gt;update_rule_of_firewall(args, rule_number);</div>
<div class="line"><a id="l00190" name="l00190"></a><span class="lineno"> 190</span> <span class="keywordflow">if</span> (rule_ptr == NULL)</div>
<div class="line"><a id="l00191" name="l00191"></a><span class="lineno"> 191</span> this-&gt;json_message_response(<span class="stringliteral">&quot;rule does not exist&quot;</span>, 404);</div>
<div class="line"><a id="l00192" name="l00192"></a><span class="lineno"> 192</span> <span class="keywordflow">else</span></div>
<div class="line"><a id="l00193" name="l00193"></a><span class="lineno"> 193</span> this-&gt;json_generic_response(this-&gt;construct_json_firewall_rule(rule_ptr), 200);</div>
<div class="line"><a id="l00194" name="l00194"></a><span class="lineno"> 194</span> }</div>
<div class="line"><a id="l00195" name="l00195"></a><span class="lineno"> 195</span> <span class="keywordflow">else</span></div>
<div class="line"><a id="l00196" name="l00196"></a><span class="lineno"> 196</span> {</div>
<div class="line"><a id="l00197" name="l00197"></a><span class="lineno"> 197</span> this-&gt;json_message_response(<span class="stringliteral">&quot;not enough parameter provided&quot;</span>, 400);</div>
<div class="line"><a id="l00198" name="l00198"></a><span class="lineno"> 198</span> }</div>
<div class="line"><a id="l00199" name="l00199"></a><span class="lineno"> 199</span> }</div>
<div class="line"><a id="l00200" name="l00200"></a><span class="lineno"> 200</span> </div>
<div class="line"><a id="l00201" name="l00201"></a><span class="lineno"> 201</span> <span class="keywordtype">void</span> API::delete_firewall_handler()</div>
<div class="line"><a id="l00202" name="l00202"></a><span class="lineno"> 202</span> {</div>
<div class="line"><a id="l00203" name="l00203"></a><span class="lineno"> 203</span> <span class="keywordflow">if</span> (this-&gt;check_auth() == DENIED)</div>
<div class="line"><a id="l00204" name="l00204"></a><span class="lineno"> 204</span> <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00205" name="l00205"></a><span class="lineno"> 205</span> String param = this-&gt;server-&gt;pathArg(0);</div>
<div class="line"><a id="l00206" name="l00206"></a><span class="lineno"> 206</span> <span class="keywordtype">int</span> rule_number = atoi(param.c_str());</div>
<div class="line"><a id="l00207" name="l00207"></a><span class="lineno"> 207</span> <span class="keywordflow">if</span> (firewall-&gt;delete_rule_from_firewall(rule_number) == SUCCESS)</div>
<div class="line"><a id="l00208" name="l00208"></a><span class="lineno"> 208</span> this-&gt;json_message_response(<span class="stringliteral">&quot;firewall rule deleted&quot;</span>, 200);</div>
<div class="line"><a id="l00209" name="l00209"></a><span class="lineno"> 209</span> <span class="keywordflow">else</span></div>
<div class="line"><a id="l00210" name="l00210"></a><span class="lineno"> 210</span> this-&gt;json_message_response(<span class="stringliteral">&quot;cannot delete firewall rule&quot;</span>, 500);</div>
<div class="line"><a id="l00211" name="l00211"></a><span class="lineno"> 211</span> }</div>
<div class="line"><a id="l00212" name="l00212"></a><span class="lineno"> 212</span> </div>
<div class="line"><a id="l00213" name="l00213"></a><span class="lineno"> 213</span> <span class="keywordtype">bool</span> API::request_has_all_firewall_parameter()</div>
<div class="line"><a id="l00214" name="l00214"></a><span class="lineno"> 214</span> {</div>
<div class="line"><a id="l00215" name="l00215"></a><span class="lineno"> 215</span> <span class="keywordflow">if</span> (!this-&gt;server-&gt;args())</div>
<div class="line"><a id="l00216" name="l00216"></a><span class="lineno"> 216</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l00217" name="l00217"></a><span class="lineno"> 217</span> <span class="keywordflow">for</span> (uint8_t i = 0; i &lt; firewall_fields_amount; i++)</div>
<div class="line"><a id="l00218" name="l00218"></a><span class="lineno"> 218</span> {</div>
<div class="line"><a id="l00219" name="l00219"></a><span class="lineno"> 219</span> <span class="keywordflow">if</span> (i != KEY &amp;&amp; !this-&gt;server-&gt;hasArg(firewall_fields[i]))</div>
<div class="line"><a id="l00220" name="l00220"></a><span class="lineno"> 220</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l00221" name="l00221"></a><span class="lineno"> 221</span> }</div>
<div class="line"><a id="l00222" name="l00222"></a><span class="lineno"> 222</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a id="l00223" name="l00223"></a><span class="lineno"> 223</span> }</div>
<div class="line"><a id="l00224" name="l00224"></a><span class="lineno"> 224</span> </div>
<div class="line"><a id="l00225" name="l00225"></a><span class="lineno"> 225</span> String API::json_new_attribute(String key, String value, <span class="keywordtype">bool</span> last)</div>
<div class="line"><a id="l00226" name="l00226"></a><span class="lineno"> 226</span> {</div>
<div class="line"><a id="l00227" name="l00227"></a><span class="lineno"> 227</span> String json_string;</div>
<div class="line"><a id="l00228" name="l00228"></a><span class="lineno"> 228</span> json_string += <span class="stringliteral">&quot;\&quot;&quot;</span> + key + <span class="stringliteral">&quot;\&quot;: \&quot;&quot;</span> + value + <span class="stringliteral">&quot;\&quot;&quot;</span>;</div>
<div class="line"><a id="l00229" name="l00229"></a><span class="lineno"> 229</span> <span class="keywordflow">if</span> (!last)</div>
<div class="line"><a id="l00230" name="l00230"></a><span class="lineno"> 230</span> json_string += <span class="stringliteral">&quot;,&quot;</span>;</div>
<div class="line"><a id="l00231" name="l00231"></a><span class="lineno"> 231</span> <span class="keywordflow">return</span> json_string;</div>
<div class="line"><a id="l00232" name="l00232"></a><span class="lineno"> 232</span> }</div>
<div class="line"><a id="l00233" name="l00233"></a><span class="lineno"> 233</span> </div>
<div class="line"><a id="l00234" name="l00234"></a><span class="lineno"> 234</span> String API::json_new_attribute(String key, uint32_t value, <span class="keywordtype">bool</span> last)</div>
<div class="line"><a id="l00235" name="l00235"></a><span class="lineno"> 235</span> {</div>
<div class="line"><a id="l00236" name="l00236"></a><span class="lineno"> 236</span> <span class="keywordflow">return</span> json_new_attribute(key, String(value), last);</div>
<div class="line"><a id="l00237" name="l00237"></a><span class="lineno"> 237</span> }</div>
<div class="line"><a id="l00238" name="l00238"></a><span class="lineno"> 238</span> </div>
<div class="line"><a id="l00239" name="l00239"></a><span class="lineno"> 239</span> <span class="keywordtype">void</span> API::json_generic_response(String serialized_string, <span class="keyword">const</span> uint16_t response_code)</div>
<div class="line"><a id="l00240" name="l00240"></a><span class="lineno"> 240</span> {</div>
<div class="line"><a id="l00241" name="l00241"></a><span class="lineno"> 241</span> this-&gt;server-&gt;send(response_code, json_response_type, serialized_string);</div>
<div class="line"><a id="l00242" name="l00242"></a><span class="lineno"> 242</span> }</div>
<div class="line"><a id="l00243" name="l00243"></a><span class="lineno"> 243</span> </div>
<div class="line"><a id="l00244" name="l00244"></a><span class="lineno"> 244</span> <span class="keywordtype">void</span> API::json_array_response(String serialized_string, <span class="keyword">const</span> uint16_t response_code)</div>
<div class="line"><a id="l00245" name="l00245"></a><span class="lineno"> 245</span> {</div>
<div class="line"><a id="l00246" name="l00246"></a><span class="lineno"> 246</span> this-&gt;server-&gt;send(response_code, json_response_type, <span class="stringliteral">&quot;[&quot;</span> + serialized_string + <span class="stringliteral">&quot;]&quot;</span>);</div>
<div class="line"><a id="l00247" name="l00247"></a><span class="lineno"> 247</span> }</div>
<div class="line"><a id="l00248" name="l00248"></a><span class="lineno"> 248</span> </div>
<div class="line"><a id="l00249" name="l00249"></a><span class="lineno"> 249</span> <span class="keywordtype">void</span> API::json_message_response(String message, <span class="keyword">const</span> uint16_t response_code)</div>
<div class="line"><a id="l00250" name="l00250"></a><span class="lineno"> 250</span> {</div>
<div class="line"><a id="l00251" name="l00251"></a><span class="lineno"> 251</span> String serialized_string = <span class="stringliteral">&quot;{&quot;</span>;</div>
<div class="line"><a id="l00252" name="l00252"></a><span class="lineno"> 252</span> serialized_string += json_new_attribute(<span class="stringliteral">&quot;message&quot;</span>, message, <span class="keyword">true</span>);</div>
<div class="line"><a id="l00253" name="l00253"></a><span class="lineno"> 253</span> serialized_string += <span class="stringliteral">&quot;}&quot;</span>;</div>
<div class="line"><a id="l00254" name="l00254"></a><span class="lineno"> 254</span> this-&gt;server-&gt;send(response_code, json_response_type, serialized_string);</div>
<div class="line"><a id="l00255" name="l00255"></a><span class="lineno"> 255</span> }</div>
<div class="line"><a id="l00256" name="l00256"></a><span class="lineno"> 256</span> </div>
<div class="line"><a id="l00257" name="l00257"></a><span class="lineno"> 257</span> String API::construct_json_firewall_rule(firewall_rule_t *rule_ptr)</div>
<div class="line"><a id="l00258" name="l00258"></a><span class="lineno"> 258</span> {</div>
<div class="line"><a id="l00259" name="l00259"></a><span class="lineno"> 259</span> String serialized_string = <span class="stringliteral">&quot;{&quot;</span>;</div>
<div class="line"><a id="l00260" name="l00260"></a><span class="lineno"> 260</span> serialized_string += json_new_attribute(firewall_fields[KEY], rule_ptr-&gt;key);</div>
<div class="line"><a id="l00261" name="l00261"></a><span class="lineno"> 261</span> serialized_string += json_new_attribute(firewall_fields[IP], rule_ptr-&gt;ip);</div>
<div class="line"><a id="l00262" name="l00262"></a><span class="lineno"> 262</span> serialized_string += json_new_attribute(firewall_fields[PORT_FROM], rule_ptr-&gt;port_from);</div>
<div class="line"><a id="l00263" name="l00263"></a><span class="lineno"> 263</span> serialized_string += json_new_attribute(firewall_fields[PORT_TO], rule_ptr-&gt;port_to);</div>
<div class="line"><a id="l00264" name="l00264"></a><span class="lineno"> 264</span> serialized_string += json_new_attribute(firewall_fields[PROTOCOL], protocol_to_string(rule_ptr-&gt;protocol));</div>
<div class="line"><a id="l00265" name="l00265"></a><span class="lineno"> 265</span> serialized_string += json_new_attribute(firewall_fields[TARGET], target_to_string(rule_ptr-&gt;target), <span class="keyword">true</span>);</div>
<div class="line"><a id="l00266" name="l00266"></a><span class="lineno"> 266</span> serialized_string += <span class="stringliteral">&quot;}&quot;</span>;</div>
<div class="line"><a id="l00267" name="l00267"></a><span class="lineno"> 267</span> <span class="keywordflow">return</span> serialized_string;</div>
<div class="line"><a id="l00268" name="l00268"></a><span class="lineno"> 268</span> }</div>
<div class="line"><a id="l00269" name="l00269"></a><span class="lineno"> 269</span> </div>
<div class="line"><a id="l00270" name="l00270"></a><span class="lineno"> 270</span> String API::construct_json_firewall()</div>
<div class="line"><a id="l00271" name="l00271"></a><span class="lineno"> 271</span> {</div>
<div class="line"><a id="l00272" name="l00272"></a><span class="lineno"> 272</span> firewall_rule_t *rule_ptr = firewall-&gt;get_rule_head();</div>
<div class="line"><a id="l00273" name="l00273"></a><span class="lineno"> 273</span> String serialized_string;</div>
<div class="line"><a id="l00274" name="l00274"></a><span class="lineno"> 274</span> <span class="keywordflow">while</span> (rule_ptr != NULL)</div>
<div class="line"><a id="l00275" name="l00275"></a><span class="lineno"> 275</span> {</div>
<div class="line"><a id="l00276" name="l00276"></a><span class="lineno"> 276</span> serialized_string += construct_json_firewall_rule(rule_ptr);</div>
<div class="line"><a id="l00277" name="l00277"></a><span class="lineno"> 277</span> rule_ptr = rule_ptr-&gt;next;</div>
<div class="line"><a id="l00278" name="l00278"></a><span class="lineno"> 278</span> <span class="keywordflow">if</span> (rule_ptr != NULL)</div>
<div class="line"><a id="l00279" name="l00279"></a><span class="lineno"> 279</span> serialized_string += <span class="stringliteral">&quot;,&quot;</span>;</div>
<div class="line"><a id="l00280" name="l00280"></a><span class="lineno"> 280</span> }</div>
<div class="line"><a id="l00281" name="l00281"></a><span class="lineno"> 281</span> <span class="keywordflow">return</span> serialized_string;</div>
<div class="line"><a id="l00282" name="l00282"></a><span class="lineno"> 282</span> }</div>
<div class="line"><a id="l00283" name="l00283"></a><span class="lineno"> 283</span> </div>
<div class="line"><a id="l00284" name="l00284"></a><span class="lineno"> 284</span> String API::construct_json_api_endpoint(api_endpoint_t *api_ptr)</div>
<div class="line"><a id="l00285" name="l00285"></a><span class="lineno"> 285</span> {</div>
<div class="line"><a id="l00286" name="l00286"></a><span class="lineno"> 286</span> String serialized_string = <span class="stringliteral">&quot;{&quot;</span>;</div>
<div class="line"><a id="l00287" name="l00287"></a><span class="lineno"> 287</span> serialized_string += json_new_attribute(<span class="stringliteral">&quot;endpoint&quot;</span>, api_ptr-&gt;uri);</div>
<div class="line"><a id="l00288" name="l00288"></a><span class="lineno"> 288</span> serialized_string += json_new_attribute(<span class="stringliteral">&quot;description&quot;</span>, api_ptr-&gt;description);</div>
<div class="line"><a id="l00289" name="l00289"></a><span class="lineno"> 289</span> serialized_string += json_new_attribute(<span class="stringliteral">&quot;method&quot;</span>, api_ptr-&gt;method, <span class="keyword">true</span>);</div>
<div class="line"><a id="l00290" name="l00290"></a><span class="lineno"> 290</span> serialized_string += <span class="stringliteral">&quot;}&quot;</span>;</div>
<div class="line"><a id="l00291" name="l00291"></a><span class="lineno"> 291</span> <span class="keywordflow">return</span> serialized_string;</div>
<div class="line"><a id="l00292" name="l00292"></a><span class="lineno"> 292</span> }</div>
<div class="line"><a id="l00293" name="l00293"></a><span class="lineno"> 293</span> </div>
<div class="line"><a id="l00294" name="l00294"></a><span class="lineno"> 294</span> String API::construct_json_api()</div>
<div class="line"><a id="l00295" name="l00295"></a><span class="lineno"> 295</span> {</div>
<div class="line"><a id="l00296" name="l00296"></a><span class="lineno"> 296</span> api_endpoint_t *api_ptr = this-&gt;endpoint_head;</div>
<div class="line"><a id="l00297" name="l00297"></a><span class="lineno"> 297</span> String serialized_string;</div>
<div class="line"><a id="l00298" name="l00298"></a><span class="lineno"> 298</span> <span class="keywordflow">while</span> (api_ptr != NULL)</div>
<div class="line"><a id="l00299" name="l00299"></a><span class="lineno"> 299</span> {</div>
<div class="line"><a id="l00300" name="l00300"></a><span class="lineno"> 300</span> serialized_string += construct_json_api_endpoint(api_ptr);</div>
<div class="line"><a id="l00301" name="l00301"></a><span class="lineno"> 301</span> api_ptr = api_ptr-&gt;next;</div>
<div class="line"><a id="l00302" name="l00302"></a><span class="lineno"> 302</span> <span class="keywordflow">if</span> (api_ptr != NULL)</div>
<div class="line"><a id="l00303" name="l00303"></a><span class="lineno"> 303</span> serialized_string += <span class="stringliteral">&quot;,&quot;</span>;</div>
<div class="line"><a id="l00304" name="l00304"></a><span class="lineno"> 304</span> }</div>
<div class="line"><a id="l00305" name="l00305"></a><span class="lineno"> 305</span> <span class="keywordflow">return</span> serialized_string;</div>
<div class="line"><a id="l00306" name="l00306"></a><span class="lineno"> 306</span> }</div>
<div class="line"><a id="l00307" name="l00307"></a><span class="lineno"> 307</span>}</div>
<div class="ttc" id="aclassfw_1_1_a_p_i_html_a033d5efd077dfad456cb6e6e7dd2baca"><div class="ttname"><a href="classfw_1_1_a_p_i.html#a033d5efd077dfad456cb6e6e7dd2baca">fw::API::API</a></div><div class="ttdeci">API(Firewall *, const char *cert, const char *key, const char *username, const char *password, const String ip, const uint16_t port=8080)</div><div class="ttdoc">Construct a new API object.</div><div class="ttdef"><b>Definition:</b> <a href="_a_p_i_8cpp_source.html#l00005">API.cpp:5</a></div></div>
<div class="ttc" id="aclassfw_1_1_a_p_i_html_a66ac0bd592bb08d069aea199668670ab"><div class="ttname"><a href="classfw_1_1_a_p_i.html#a66ac0bd592bb08d069aea199668670ab">fw::API::~API</a></div><div class="ttdeci">~API()</div><div class="ttdoc">Destroy the API object.</div><div class="ttdef"><b>Definition:</b> <a href="_a_p_i_8cpp_source.html#l00031">API.cpp:31</a></div></div>
<div class="ttc" id="aclassfw_1_1_firewall_html"><div class="ttname"><a href="classfw_1_1_firewall.html">fw::Firewall</a></div><div class="ttdef"><b>Definition:</b> <a href="_firewall_8hpp_source.html#l00015">Firewall.hpp:16</a></div></div>
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