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<div class="fragment"><div class="line"><span class="comment">/* This file is part of mastodon-cpp.</span></div><div class="line"><span class="comment"> * Prints the new toots under a hashtag, designed to be used in cronjobs</span></div><div class="line"><span class="comment"> */</span></div><div class="line"></div><div class="line"><span class="preprocessor">#include &lt;iostream&gt;</span></div><div class="line"><span class="preprocessor">#include &lt;vector&gt;</span></div><div class="line"><span class="preprocessor">#include &lt;string&gt;</span></div><div class="line"><span class="preprocessor">#include &lt;cstdint&gt;</span></div><div class="line"><span class="preprocessor">#include &lt;sstream&gt;</span></div><div class="line"><span class="preprocessor">#include &lt;regex&gt;</span></div><div class="line"><span class="preprocessor">#include &lt;cstdlib&gt;</span></div><div class="line"><span class="preprocessor">#include &quot;../mastodon-cpp.hpp&quot;</span></div><div class="line"><span class="preprocessor">#include &lt;boost/property_tree/ptree.hpp&gt;</span></div><div class="line"><span class="preprocessor">#include &lt;boost/property_tree/json_parser.hpp&gt;</span></div><div class="line"></div><div class="line"><span class="keyword">namespace </span>pt = boost::property_tree;</div><div class="line"><span class="keyword">using</span> <a name="_a0"></a><a class="code" href="classMastodon_1_1API.html">Mastodon::API</a>;</div><div class="line"><span class="keyword">using</span> std::cout;</div><div class="line"><span class="keyword">using</span> std::string;</div><div class="line"></div><div class="line"><span class="keywordtype">int</span> main(<span class="keywordtype">int</span> argc, <span class="keywordtype">char</span> *argv[])</div><div class="line">{</div><div class="line"> <span class="keywordtype">string</span> limit = <span class="stringliteral">&quot;20&quot;</span>;</div><div class="line"> <span class="keywordflow">if</span> (argc &lt; 3)</div><div class="line"> {</div><div class="line"> std::cerr &lt;&lt; <span class="stringliteral">&quot;usage: &quot;</span> &lt;&lt; argv[0] &lt;&lt; <span class="stringliteral">&quot; &lt;instance&gt; &lt;hashtag&gt; [limit]\n&quot;</span>;</div><div class="line"> std::cerr &lt;&lt; <span class="stringliteral">&quot; Default limit is 20, max limit is 40.\n&quot;</span>;</div><div class="line"> <span class="keywordflow">return</span> 1;</div><div class="line"> }</div><div class="line"> <span class="keywordflow">else</span> <span class="keywordflow">if</span> (argc == 4)</div><div class="line"> {</div><div class="line"> limit = argv[3];</div><div class="line"> }</div><div class="line"></div><div class="line"> <a class="code" href="classMastodon_1_1API.html">Mastodon::API</a> masto(argv[1], <span class="stringliteral">&quot;&quot;</span>);</div><div class="line"> <span class="keywordtype">string</span> hashtag = argv[2];</div><div class="line"> <span class="keywordtype">string</span> answer;</div><div class="line"> std::uint16_t ret;</div><div class="line"> pt::ptree config;</div><div class="line"> <span class="keywordtype">string</span> lastid = <span class="stringliteral">&quot;0&quot;</span>;</div><div class="line"> <span class="keywordtype">string</span> filename = string(getenv(<span class="stringliteral">&quot;HOME&quot;</span>)) + <span class="stringliteral">&quot;/.config/mastocron.json&quot;</span>;</div><div class="line"></div><div class="line"> <span class="comment">// Read config file, get last seen toot-id</span></div><div class="line"> <span class="keywordflow">try</span> {</div><div class="line"> pt::read_json(filename, config);</div><div class="line"> lastid = config.get(hashtag, <span class="stringliteral">&quot;0&quot;</span>);</div><div class="line"> }</div><div class="line"> <span class="keywordflow">catch</span> (std::exception &amp;e)</div><div class="line"> {</div><div class="line"> <span class="comment">// most likely no config file found, ignore</span></div><div class="line"> }</div><div class="line"></div><div class="line"> <span class="comment">// Only get toots we haven&#39;t seen yet</span></div><div class="line"> API::parametermap params =</div><div class="line"> {</div><div class="line"> { <span class="stringliteral">&quot;limit&quot;</span>, { limit } },</div><div class="line"> { <span class="stringliteral">&quot;since_id&quot;</span>, { lastid } }</div><div class="line"> };</div><div class="line"> ret = masto.<a name="a1"></a><a class="code" href="classMastodon_1_1API.html#a1d4ace331be12e5234246bc274c0dddd">get</a>(API::v1::timelines_tag_hashtag, hashtag, params, answer);</div><div class="line"></div><div class="line"> <span class="keywordflow">if</span> (ret == 0)</div><div class="line"> {</div><div class="line"> <span class="comment">// If answer is empty, there are no new toots,</span></div><div class="line"> <span class="comment">// if answer is &quot;[]&quot; there are none at all</span></div><div class="line"> <span class="keywordflow">if</span> (answer != <span class="stringliteral">&quot;&quot;</span> &amp;&amp; answer != <span class="stringliteral">&quot;[]&quot;</span>)</div><div class="line"> {</div><div class="line"> <span class="keywordtype">string</span> ornament = <span class="stringliteral">&quot; +++++&quot;</span>;</div><div class="line"> <span class="keywordflow">for</span> (std::uint8_t i = hashtag.size(); i &gt; 0; --i)</div><div class="line"> {</div><div class="line"> ornament += <span class="stringliteral">&quot;+&quot;</span>;</div><div class="line"> }</div><div class="line"> cout &lt;&lt; ornament &lt;&lt; <span class="charliteral">&#39;\n&#39;</span>;</div><div class="line"> cout &lt;&lt; <span class="stringliteral">&quot; + &quot;</span> &lt;&lt; hashtag &lt;&lt; <span class="stringliteral">&quot;: +\n&quot;</span>;</div><div class="line"> cout &lt;&lt; ornament &lt;&lt; <span class="charliteral">&#39;\n&#39;</span>;</div><div class="line"></div><div class="line"> std::istringstream iss(answer);</div><div class="line"> pt::ptree tree;</div><div class="line"> </div><div class="line"> pt::read_json(iss, tree);</div><div class="line"> <span class="keywordflow">for</span> (<span class="keyword">const</span> pt::ptree::value_type &amp;toot : tree.get_child(<span class="stringliteral">&quot;&quot;</span>))</div><div class="line"> {</div><div class="line"> <span class="keywordtype">string</span> content = toot.second.get&lt;<span class="keywordtype">string</span>&gt;(<span class="stringliteral">&quot;content&quot;</span>);</div><div class="line"> std::regex reparagraph(<span class="stringliteral">&quot;&lt;/p&gt;&lt;p&gt;&quot;</span>);</div><div class="line"> std::regex restrip(<span class="stringliteral">&quot;&lt;[^&gt;]*&gt;&quot;</span>);</div><div class="line"></div><div class="line"> cout &lt;&lt; <span class="stringliteral">&quot;++++++++\n&quot;</span>;</div><div class="line"> content = std::regex_replace(content, reparagraph, <span class="stringliteral">&quot;\n\n&quot;</span>);</div><div class="line"> cout &lt;&lt; std::regex_replace(content, restrip, <span class="stringliteral">&quot;&quot;</span>) &lt;&lt; <span class="charliteral">&#39;\n&#39;</span>;</div><div class="line"> cout &lt;&lt; <span class="stringliteral">&quot; – &quot;</span>;</div><div class="line"> cout &lt;&lt; toot.second.get&lt;<span class="keywordtype">string</span>&gt;(<span class="stringliteral">&quot;account.display_name&quot;</span>)</div><div class="line"> &lt;&lt; <span class="stringliteral">&quot; (&quot;</span> &lt;&lt; toot.second.get&lt;<span class="keywordtype">string</span>&gt;(<span class="stringliteral">&quot;account.acct&quot;</span>) &lt;&lt; <span class="stringliteral">&quot;) at &quot;</span></div><div class="line"> &lt;&lt; toot.second.get&lt;<span class="keywordtype">string</span>&gt;(<span class="stringliteral">&quot;created_at&quot;</span>) &lt;&lt; <span class="stringliteral">&quot;\n&quot;</span>;</div><div class="line"> cout &lt;&lt; <span class="stringliteral">&quot; &quot;</span> &lt;&lt; toot.second.get&lt;<span class="keywordtype">string</span>&gt;(<span class="stringliteral">&quot;url&quot;</span>) &lt;&lt; <span class="charliteral">&#39;\n&#39;</span>;</div><div class="line"> <span class="keywordflow">for</span> (<span class="keyword">const</span> pt::ptree::value_type &amp;media : toot.second.get_child(<span class="stringliteral">&quot;media_attachments&quot;</span>))</div><div class="line"> {</div><div class="line"> cout &lt;&lt; <span class="stringliteral">&quot;Attachment: &lt;&quot;</span> &lt;&lt; media.second.get&lt;<span class="keywordtype">string</span>&gt;(<span class="stringliteral">&quot;url&quot;</span>) &lt;&lt; <span class="stringliteral">&quot;&gt;\n&quot;</span>;</div><div class="line"> }</div><div class="line"> cout &lt;&lt; <span class="stringliteral">&quot;++++++++\n&quot;</span>;</div><div class="line"> }</div><div class="line"></div><div class="line"> <span class="comment">// Write the id of the newest toot in the config file</span></div><div class="line"> lastid = tree.front().second.get&lt;<span class="keywordtype">string</span>&gt;(<span class="stringliteral">&quot;id&quot;</span>);</div><div class="line"> config.put(hashtag, lastid);</div><div class="line"> pt::write_json(filename, config);</div><div class="line"> }</div><div class="line"> }</div><div class="line"> <span class="keywordflow">else</span> <span class="keywordflow">if</span> (ret == 13)</div><div class="line"> {</div><div class="line"> std::cerr &lt;&lt; <span class="stringliteral">&quot;The URL has permanently changed.\n&quot;</span> &lt;&lt;</div><div class="line"> <span class="stringliteral">&quot;New URL: &quot;</span> &lt;&lt; answer &lt;&lt; <span class="charliteral">&#39;\n&#39;</span>;</div><div class="line"> <span class="keywordflow">return</span> ret;</div><div class="line"> }</div><div class="line"> <span class="keywordflow">else</span></div><div class="line"> {</div><div class="line"> std::cerr &lt;&lt; <span class="stringliteral">&quot;Error code: &quot;</span> &lt;&lt; ret &lt;&lt; <span class="charliteral">&#39;\n&#39;</span>;</div><div class="line"> <span class="keywordflow">return</span> ret;</div><div class="line"> }</div><div class="line"></div><div class="line"> <span class="keywordflow">return</span> 0;</div><div class="line">}</div></div><!-- fragment --> </div><!-- contents -->
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