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</pre><pre class="rust"><code><span class="comment">/*
* Copyright (C) 2022 Aravinth Manivannan &lt;realaravinth@batsense.net&gt;
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see &lt;https://www.gnu.org/licenses/&gt;.
*/</span>
<span class="kw">use</span> <span class="ident">std::env</span>;
<span class="kw">use</span> <span class="ident">std::path::Path</span>;
<span class="kw">use</span> <span class="ident">config</span>::{<span class="ident">Config</span>, <span class="ident">ConfigError</span>, <span class="ident">Environment</span>, <span class="ident">File</span>};
<span class="kw">use</span> <span class="ident">log</span>::{<span class="ident">debug</span>, <span class="ident">warn</span>};
<span class="kw">use</span> <span class="ident">serde::Deserialize</span>;
<span class="kw">use</span> <span class="ident">url::Url</span>;
<span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Debug</span>, <span class="ident">Clone</span>, <span class="ident">Deserialize</span>)]</span>
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">Server</span> {
<span class="kw">pub</span> <span class="ident">port</span>: <span class="ident">u32</span>,
<span class="kw">pub</span> <span class="ident">domain</span>: <span class="ident">String</span>,
<span class="kw">pub</span> <span class="ident">cookie_secret</span>: <span class="ident">String</span>,
<span class="kw">pub</span> <span class="ident">ip</span>: <span class="ident">String</span>,
<span class="kw">pub</span> <span class="ident">url_prefix</span>: <span class="prelude-ty">Option</span><span class="op">&lt;</span><span class="ident">String</span><span class="op">&gt;</span>,
<span class="kw">pub</span> <span class="ident">proxy_has_tls</span>: <span class="ident">bool</span>,
}
<span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Debug</span>, <span class="ident">Clone</span>, <span class="ident">Deserialize</span>)]</span>
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">Captcha</span> {
<span class="kw">pub</span> <span class="ident">salt</span>: <span class="ident">String</span>,
<span class="kw">pub</span> <span class="ident">gc</span>: <span class="ident">u64</span>,
<span class="kw">pub</span> <span class="ident">default_difficulty_strategy</span>: <span class="ident">DefaultDifficultyStrategy</span>,
}
<span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Debug</span>, <span class="ident">Clone</span>, <span class="ident">Deserialize</span>)]</span>
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">DefaultDifficultyStrategy</span> {
<span class="kw">pub</span> <span class="ident">avg_traffic_difficulty</span>: <span class="ident">u32</span>,
<span class="kw">pub</span> <span class="ident">broke_my_site_traffic_difficulty</span>: <span class="ident">u32</span>,
<span class="kw">pub</span> <span class="ident">peak_sustainable_traffic_difficulty</span>: <span class="ident">u32</span>,
<span class="kw">pub</span> <span class="ident">duration</span>: <span class="ident">u32</span>,
}
<span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Debug</span>, <span class="ident">Clone</span>, <span class="ident">Deserialize</span>)]</span>
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">Smtp</span> {
<span class="kw">pub</span> <span class="ident">from</span>: <span class="ident">String</span>,
<span class="kw">pub</span> <span class="ident">reply</span>: <span class="ident">String</span>,
<span class="kw">pub</span> <span class="ident">url</span>: <span class="ident">String</span>,
<span class="kw">pub</span> <span class="ident">username</span>: <span class="ident">String</span>,
<span class="kw">pub</span> <span class="ident">password</span>: <span class="ident">String</span>,
<span class="kw">pub</span> <span class="ident">port</span>: <span class="ident">u16</span>,
}
<span class="kw">impl</span> <span class="ident">Server</span> {
<span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">not</span>(<span class="ident">tarpaulin_include</span>))]</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">get_ip</span>(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="ident">String</span> {
<span class="macro">format!</span>(<span class="string">&quot;{}:{}&quot;</span>, <span class="self">self</span>.<span class="ident">ip</span>, <span class="self">self</span>.<span class="ident">port</span>)
}
}
<span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Debug</span>, <span class="ident">Clone</span>, <span class="ident">Deserialize</span>)]</span>
<span class="kw">struct</span> <span class="ident">DatabaseBuilder</span> {
<span class="kw">pub</span> <span class="ident">port</span>: <span class="ident">u32</span>,
<span class="kw">pub</span> <span class="ident">hostname</span>: <span class="ident">String</span>,
<span class="kw">pub</span> <span class="ident">username</span>: <span class="ident">String</span>,
<span class="kw">pub</span> <span class="ident">password</span>: <span class="ident">String</span>,
<span class="kw">pub</span> <span class="ident">name</span>: <span class="ident">String</span>,
}
<span class="kw">impl</span> <span class="ident">DatabaseBuilder</span> {
<span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">not</span>(<span class="ident">tarpaulin_include</span>))]</span>
<span class="kw">fn</span> <span class="ident">extract_database_url</span>(<span class="ident">url</span>: <span class="kw-2">&amp;</span><span class="ident">Url</span>) -&gt; <span class="self">Self</span> {
<span class="macro">debug!</span>(<span class="string">&quot;Databse name: {}&quot;</span>, <span class="ident">url</span>.<span class="ident">path</span>());
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">path</span> <span class="op">=</span> <span class="ident">url</span>.<span class="ident">path</span>().<span class="ident">split</span>(<span class="string">&#39;/&#39;</span>);
<span class="ident">path</span>.<span class="ident">next</span>();
<span class="kw">let</span> <span class="ident">name</span> <span class="op">=</span> <span class="ident">path</span>.<span class="ident">next</span>().<span class="ident">expect</span>(<span class="string">&quot;no database name&quot;</span>).<span class="ident">to_string</span>();
<span class="ident">DatabaseBuilder</span> {
<span class="ident">port</span>: <span class="ident">url</span>.<span class="ident">port</span>().<span class="ident">expect</span>(<span class="string">&quot;Enter database port&quot;</span>).<span class="ident">into</span>(),
<span class="ident">hostname</span>: <span class="ident">url</span>.<span class="ident">host</span>().<span class="ident">expect</span>(<span class="string">&quot;Enter database host&quot;</span>).<span class="ident">to_string</span>(),
<span class="ident">username</span>: <span class="ident">url</span>.<span class="ident">username</span>().<span class="ident">into</span>(),
<span class="ident">password</span>: <span class="ident">url</span>.<span class="ident">password</span>().<span class="ident">expect</span>(<span class="string">&quot;Enter database password&quot;</span>).<span class="ident">into</span>(),
<span class="ident">name</span>,
}
}
}
<span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Debug</span>, <span class="ident">Clone</span>, <span class="ident">Deserialize</span>)]</span>
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">Database</span> {
<span class="kw">pub</span> <span class="ident">url</span>: <span class="ident">String</span>,
<span class="kw">pub</span> <span class="ident">pool</span>: <span class="ident">u32</span>,
}
<span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Debug</span>, <span class="ident">Clone</span>, <span class="ident">Deserialize</span>)]</span>
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">Redis</span> {
<span class="kw">pub</span> <span class="ident">url</span>: <span class="ident">String</span>,
<span class="kw">pub</span> <span class="ident">pool</span>: <span class="ident">u32</span>,
}
<span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Debug</span>, <span class="ident">Clone</span>, <span class="ident">Deserialize</span>)]</span>
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">Settings</span> {
<span class="kw">pub</span> <span class="ident">debug</span>: <span class="ident">bool</span>,
<span class="kw">pub</span> <span class="ident">commercial</span>: <span class="ident">bool</span>,
<span class="kw">pub</span> <span class="ident">database</span>: <span class="ident">Database</span>,
<span class="kw">pub</span> <span class="ident">redis</span>: <span class="prelude-ty">Option</span><span class="op">&lt;</span><span class="ident">Redis</span><span class="op">&gt;</span>,
<span class="kw">pub</span> <span class="ident">server</span>: <span class="ident">Server</span>,
<span class="kw">pub</span> <span class="ident">captcha</span>: <span class="ident">Captcha</span>,
<span class="kw">pub</span> <span class="ident">source_code</span>: <span class="ident">String</span>,
<span class="kw">pub</span> <span class="ident">smtp</span>: <span class="prelude-ty">Option</span><span class="op">&lt;</span><span class="ident">Smtp</span><span class="op">&gt;</span>,
<span class="kw">pub</span> <span class="ident">allow_registration</span>: <span class="ident">bool</span>,
<span class="kw">pub</span> <span class="ident">allow_demo</span>: <span class="ident">bool</span>,
}
<span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">not</span>(<span class="ident">tarpaulin_include</span>))]</span>
<span class="kw">impl</span> <span class="ident">Settings</span> {
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">new</span>() -&gt; <span class="prelude-ty">Result</span><span class="op">&lt;</span><span class="self">Self</span>, <span class="ident">ConfigError</span><span class="op">&gt;</span> {
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">s</span> <span class="op">=</span> <span class="ident">Config::new</span>();
<span class="kw">const</span> <span class="ident">CURRENT_DIR</span>: <span class="kw-2">&amp;</span><span class="ident">str</span> <span class="op">=</span> <span class="string">&quot;./config/default.toml&quot;</span>;
<span class="kw">const</span> <span class="ident">ETC</span>: <span class="kw-2">&amp;</span><span class="ident">str</span> <span class="op">=</span> <span class="string">&quot;/etc/mcaptcha/config.toml&quot;</span>;
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Ok</span>(<span class="ident">path</span>) <span class="op">=</span> <span class="ident">env::var</span>(<span class="string">&quot;MCAPTCHA_CONFIG&quot;</span>) {
<span class="ident">s</span>.<span class="ident">merge</span>(<span class="ident">File::with_name</span>(<span class="kw-2">&amp;</span><span class="ident">path</span>))<span class="question-mark">?</span>;
} <span class="kw">else</span> <span class="kw">if</span> <span class="ident">Path::new</span>(<span class="ident">CURRENT_DIR</span>).<span class="ident">exists</span>() {
<span class="comment">// merging default config from file</span>
<span class="ident">s</span>.<span class="ident">merge</span>(<span class="ident">File::with_name</span>(<span class="ident">CURRENT_DIR</span>))<span class="question-mark">?</span>;
} <span class="kw">else</span> <span class="kw">if</span> <span class="ident">Path::new</span>(<span class="ident">ETC</span>).<span class="ident">exists</span>() {
<span class="ident">s</span>.<span class="ident">merge</span>(<span class="ident">File::with_name</span>(<span class="ident">ETC</span>))<span class="question-mark">?</span>;
} <span class="kw">else</span> {
<span class="macro">log::warn!</span>(<span class="string">&quot;configuration file not found&quot;</span>);
}
<span class="ident">s</span>.<span class="ident">merge</span>(<span class="ident">Environment::with_prefix</span>(<span class="string">&quot;MCAPTCHA&quot;</span>).<span class="ident">separator</span>(<span class="string">&quot;_&quot;</span>))<span class="question-mark">?</span>;
<span class="ident">check_url</span>(<span class="kw-2">&amp;</span><span class="ident">s</span>);
<span class="kw">match</span> <span class="ident">env::var</span>(<span class="string">&quot;PORT&quot;</span>) {
<span class="prelude-val">Ok</span>(<span class="ident">val</span>) =&gt; {
<span class="ident">s</span>.<span class="ident">set</span>(<span class="string">&quot;server.port&quot;</span>, <span class="ident">val</span>).<span class="ident">unwrap</span>();
}
<span class="prelude-val">Err</span>(<span class="ident">e</span>) =&gt; <span class="macro">warn!</span>(<span class="string">&quot;couldn&#39;t interpret PORT: {}&quot;</span>, <span class="ident">e</span>),
}
<span class="kw">match</span> <span class="ident">env::var</span>(<span class="string">&quot;DATABASE_URL&quot;</span>) {
<span class="prelude-val">Ok</span>(<span class="ident">val</span>) =&gt; {
<span class="kw">let</span> <span class="ident">url</span> <span class="op">=</span> <span class="ident">Url::parse</span>(<span class="kw-2">&amp;</span><span class="ident">val</span>).<span class="ident">expect</span>(<span class="string">&quot;couldn&#39;t parse Database URL&quot;</span>);
<span class="kw">let</span> <span class="ident">database_conf</span> <span class="op">=</span> <span class="ident">DatabaseBuilder::extract_database_url</span>(<span class="kw-2">&amp;</span><span class="ident">url</span>);
<span class="ident">set_from_database_url</span>(<span class="kw-2">&amp;mut</span> <span class="ident">s</span>, <span class="kw-2">&amp;</span><span class="ident">database_conf</span>);
}
<span class="prelude-val">Err</span>(<span class="ident">e</span>) =&gt; <span class="macro">warn!</span>(<span class="string">&quot;couldn&#39;t interpret DATABASE_URL: {}&quot;</span>, <span class="ident">e</span>),
}
<span class="ident">set_database_url</span>(<span class="kw-2">&amp;mut</span> <span class="ident">s</span>);
<span class="comment">// setting default values</span>
<span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">test</span>)]</span>
<span class="ident">s</span>.<span class="ident">set</span>(<span class="string">&quot;database.pool&quot;</span>, <span class="number">2</span>.<span class="ident">to_string</span>())
.<span class="ident">expect</span>(<span class="string">&quot;Couldn&#39;t set database pool count&quot;</span>);
<span class="kw">match</span> <span class="ident">s</span>.<span class="ident">try_into</span>() {
<span class="prelude-val">Ok</span>(<span class="ident">val</span>) =&gt; <span class="prelude-val">Ok</span>(<span class="ident">val</span>),
<span class="prelude-val">Err</span>(<span class="ident">e</span>) =&gt; <span class="prelude-val">Err</span>(<span class="ident">ConfigError::Message</span>(<span class="macro">format!</span>(<span class="string">&quot;\n\nError: {}. If it says missing fields, then please refer to https://github.com/mCaptcha/mcaptcha#configuration to learn more about how mcaptcha reads configuration\n\n&quot;</span>, <span class="ident">e</span>))),
}
}
}
<span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">not</span>(<span class="ident">tarpaulin_include</span>))]</span>
<span class="kw">fn</span> <span class="ident">check_url</span>(<span class="ident">s</span>: <span class="kw-2">&amp;</span><span class="ident">Config</span>) {
<span class="kw">let</span> <span class="ident">url</span> <span class="op">=</span> <span class="ident">s</span>
.<span class="ident">get</span>::<span class="op">&lt;</span><span class="ident">String</span><span class="op">&gt;</span>(<span class="string">&quot;source_code&quot;</span>)
.<span class="ident">expect</span>(<span class="string">&quot;Couldn&#39;t access source_code&quot;</span>);
<span class="ident">Url::parse</span>(<span class="kw-2">&amp;</span><span class="ident">url</span>).<span class="ident">expect</span>(<span class="string">&quot;Please enter a URL for source_code in settings&quot;</span>);
}
<span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">not</span>(<span class="ident">tarpaulin_include</span>))]</span>
<span class="kw">fn</span> <span class="ident">set_from_database_url</span>(<span class="ident">s</span>: <span class="kw-2">&amp;mut</span> <span class="ident">Config</span>, <span class="ident">database_conf</span>: <span class="kw-2">&amp;</span><span class="ident">DatabaseBuilder</span>) {
<span class="ident">s</span>.<span class="ident">set</span>(<span class="string">&quot;database.username&quot;</span>, <span class="ident">database_conf</span>.<span class="ident">username</span>.<span class="ident">clone</span>())
.<span class="ident">expect</span>(<span class="string">&quot;Couldn&#39;t set database username&quot;</span>);
<span class="ident">s</span>.<span class="ident">set</span>(<span class="string">&quot;database.password&quot;</span>, <span class="ident">database_conf</span>.<span class="ident">password</span>.<span class="ident">clone</span>())
.<span class="ident">expect</span>(<span class="string">&quot;Couldn&#39;t access database password&quot;</span>);
<span class="ident">s</span>.<span class="ident">set</span>(<span class="string">&quot;database.hostname&quot;</span>, <span class="ident">database_conf</span>.<span class="ident">hostname</span>.<span class="ident">clone</span>())
.<span class="ident">expect</span>(<span class="string">&quot;Couldn&#39;t access database hostname&quot;</span>);
<span class="ident">s</span>.<span class="ident">set</span>(<span class="string">&quot;database.port&quot;</span>, <span class="ident">database_conf</span>.<span class="ident">port</span> <span class="kw">as</span> <span class="ident">i64</span>)
.<span class="ident">expect</span>(<span class="string">&quot;Couldn&#39;t access database port&quot;</span>);
<span class="ident">s</span>.<span class="ident">set</span>(<span class="string">&quot;database.name&quot;</span>, <span class="ident">database_conf</span>.<span class="ident">name</span>.<span class="ident">clone</span>())
.<span class="ident">expect</span>(<span class="string">&quot;Couldn&#39;t access database name&quot;</span>);
}
<span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">not</span>(<span class="ident">tarpaulin_include</span>))]</span>
<span class="kw">fn</span> <span class="ident">set_database_url</span>(<span class="ident">s</span>: <span class="kw-2">&amp;mut</span> <span class="ident">Config</span>) {
<span class="ident">s</span>.<span class="ident">set</span>(
<span class="string">&quot;database.url&quot;</span>,
<span class="macro">format!</span>(
<span class="string">r&quot;postgres://{}:{}@{}:{}/{}&quot;</span>,
<span class="ident">s</span>.<span class="ident">get</span>::<span class="op">&lt;</span><span class="ident">String</span><span class="op">&gt;</span>(<span class="string">&quot;database.username&quot;</span>)
.<span class="ident">expect</span>(<span class="string">&quot;Couldn&#39;t access database username&quot;</span>),
<span class="ident">s</span>.<span class="ident">get</span>::<span class="op">&lt;</span><span class="ident">String</span><span class="op">&gt;</span>(<span class="string">&quot;database.password&quot;</span>)
.<span class="ident">expect</span>(<span class="string">&quot;Couldn&#39;t access database password&quot;</span>),
<span class="ident">s</span>.<span class="ident">get</span>::<span class="op">&lt;</span><span class="ident">String</span><span class="op">&gt;</span>(<span class="string">&quot;database.hostname&quot;</span>)
.<span class="ident">expect</span>(<span class="string">&quot;Couldn&#39;t access database hostname&quot;</span>),
<span class="ident">s</span>.<span class="ident">get</span>::<span class="op">&lt;</span><span class="ident">String</span><span class="op">&gt;</span>(<span class="string">&quot;database.port&quot;</span>)
.<span class="ident">expect</span>(<span class="string">&quot;Couldn&#39;t access database port&quot;</span>),
<span class="ident">s</span>.<span class="ident">get</span>::<span class="op">&lt;</span><span class="ident">String</span><span class="op">&gt;</span>(<span class="string">&quot;database.name&quot;</span>)
.<span class="ident">expect</span>(<span class="string">&quot;Couldn&#39;t access database name&quot;</span>)
),
)
.<span class="ident">expect</span>(<span class="string">&quot;Couldn&#39;t set databse url&quot;</span>);
}
<span class="comment">//#[cfg(test)]</span>
<span class="comment">//mod tests {</span>
<span class="comment">// use super::*;</span>
<span class="comment">//</span>
<span class="comment">// #[test]</span>
<span class="comment">// fn url_prefix_test() {</span>
<span class="comment">// let mut settings = Settings::new().unwrap();</span>
<span class="comment">// assert!(settings.server.url_prefix.is_none());</span>
<span class="comment">// settings.server.url_prefix = Some(&quot;test&quot;.into());</span>
<span class="comment">// settings.server.check_url_prefix();</span>
<span class="comment">// settings.server.url_prefix = Some(&quot; &quot;.into());</span>
<span class="comment">// settings.server.check_url_prefix();</span>
<span class="comment">// assert!(settings.server.url_prefix.is_none());</span>
<span class="comment">// }</span>
<span class="comment">//</span>
<span class="comment">// #[test]</span>
<span class="comment">// fn smtp_config_works() {</span>
<span class="comment">// let settings = Settings::new().unwrap();</span>
<span class="comment">// assert!(settings.smtp.is_some());</span>
<span class="comment">// assert_eq!(settings.smtp.as_ref().unwrap().password, &quot;password&quot;);</span>
<span class="comment">// assert_eq!(settings.smtp.as_ref().unwrap().username, &quot;admin&quot;);</span>
<span class="comment">// }</span>
<span class="comment">//}</span>
</code></pre></div>
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