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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="API documentation for the Rust `DEPRECATED_ENV_VARS` constant in crate `mcaptcha`."><title>DEPRECATED_ENV_VARS in mcaptcha::settings - Rust</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceSerif4-Regular-46f98efaafac5295.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/FiraSans-Regular-018c141bf0843ffd.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/FiraSans-Medium-8f9a781e4970d388.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceCodePro-Regular-562dcc5011b6de7d.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceSerif4-Bold-a2c9cd1067f8b328.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceCodePro-Semibold-d899c5a5c4aeb14a.ttf.woff2"><link rel="stylesheet" href="../../static.files/normalize-76eba96aa4d2e634.css"><link rel="stylesheet" href="../../static.files/rustdoc-cb6f1f67f1bcd037.css" id="mainThemeStyle"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="mcaptcha" data-themes="" data-resource-suffix="" data-rustdoc-version="1.73.0 (cc66ad468 2023-10-03)" data-channel="1.73.0" data-search-js="search-6dfdfced5eff6596.js" data-settings-js="settings-de11bff964e9d4e5.js" data-settings-css="settings-8c76f75bfb6bd192.css" data-theme-light-css="light-1596385f77d47ef2.css" data-theme-dark-css="dark-0a43001d3fc2282c.css" data-theme-ayu-css="ayu-fd19013d6ce078bf.css" ><script src="../../static.files/storage-db41da1a38ea3cb8.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../static.files/main-0795b7d26be81095.js"></script><noscript><link rel="stylesheet" media="(prefers-color-scheme:light)" href="../../static.files/light-1596385f77d47ef2.css"><link rel="stylesheet" media="(prefers-color-scheme:dark)" href="../../static.files/dark-0a43001d3fc2282c.css"><link rel="stylesheet" href="../../static.files/noscript-cffde32267a19fd6.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-16x16-8b506e7a72182f1c.png"><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-422f7d1d52889060.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-2c020d218678b618.svg"></head><body class="rustdoc constant"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="mobile-topbar"><button class="sidebar-menu-toggle">&#9776;</button><a class="logo-container" href="../../mcaptcha/index.html"><img class="rust-logo" src="../../static.files/rust-logo-151179464ae7ed46.svg" alt="logo"></a><h2></h2></nav><nav class="sidebar"><a class="logo-container" href="../../mcaptcha/index.html"><img class="rust-logo" src="../../static.files/rust-logo-151179464ae7ed46.svg" alt="logo"></a><div class="sidebar-elems"><h2><a href="index.html">In mcaptcha::settings</a></h2></div></nav><main><div class="width-limiter"><nav class="sub"><form class="search-form"><span></span><input class="search-input" name="search" aria-label="Run search in the documentation" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><div id="help-button" title="help" tabindex="-1"><a href="../../help.html">?</a></div><div id="settings-menu" tabindex="-1"><a href="../../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../../static.files/wheel-7b819b6101059cd0.svg"></a></div></form></nav><section id="main-content" class="content"><div class="main-heading"><h1>Constant <a href="../index.html">mcaptcha</a>::<wbr><a href="index.html">settings</a>::<wbr><a class="constant" href="#">DEPRECATED_ENV_VARS</a><button id="copy-path" title="Copy item path to clipboard"><img src="../../static.files/clipboard-7571035ce49a181d.svg" width="19" height="18" alt="Copy item path"></button></h1><span class="out-of-band"><a class="src" href="../../src/mcaptcha/settings.rs.html#160-184">source</a> · <button id="toggle-all-docs" title="collapse all docs">[<span>&#x2212;</span>]</button></span></div><pre class="rust item-decl"><code>const DEPRECATED_ENV_VARS: [(&amp;<a class="primitive" href="https://doc.rust-lang.org/1.73.0/std/primitive.str.html">str</a>, &amp;<a class="primitive" href="https://doc.rust-lang.org/1.73.0/std/primitive.str.html">str</a>); <a class="primitive" href="https://doc.rust-lang.org/1.73.0/std/primitive.array.html">23</a>];</code></pre></section></div></main></body></html>

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window.SIDEBAR_ITEMS = {"constant":["ENV_VAR_CONFIG"],"enum":["DBType"],"struct":["Captcha","Database","DefaultDifficultyStrategy","Redis","Server","Settings","Smtp"]};
window.SIDEBAR_ITEMS = {"constant":["DEPRECATED_ENV_VARS","ENV_VAR_CONFIG"],"enum":["DBType"],"struct":["Captcha","Database","DefaultDifficultyStrategy","Redis","Server","Settings","Smtp"]};

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</pre></div><pre class="rust"><code><span class="comment">// Copyright (C) 2022 Aravinth Manivannan &lt;realaravinth@batsense.net&gt;
// SPDX-FileCopyrightText: 2023 Aravinth Manivannan &lt;realaravinth@batsense.net&gt;
//
@@ -562,6 +722,33 @@
];
<span class="kw">const </span>DEPRECATED_ENV_VARS: [(<span class="kw-2">&amp;</span>str, <span class="kw-2">&amp;</span>str); <span class="number">23</span>] = [
(<span class="string">&quot;debug&quot;</span>,<span class="string">&quot;MCAPTCHA_DEBUG&quot;</span>),
(<span class="string">&quot;commercial&quot;</span>,<span class="string">&quot;MCAPTCHA_COMMERCIAL&quot;</span>),
(<span class="string">&quot;source_code&quot;</span>, <span class="string">&quot;MCAPTCHA_SOURCE_CODE&quot;</span>),
(<span class="string">&quot;allow_registration&quot;</span>, <span class="string">&quot;MCAPTCHA_ALLOW_REGISTRATION&quot;</span>),
(<span class="string">&quot;allow_demo&quot;</span>, <span class="string">&quot;MCAPTCHA_ALLOW_DEMO&quot;</span>),
(<span class="string">&quot;redis.pool&quot;</span>, <span class="string">&quot;MCAPTCHA_REDIS_POOL&quot;</span>),
(<span class="string">&quot;redis.url&quot;</span>, <span class="string">&quot;MCAPTCHA_REDIS_URL&quot;</span>),
(<span class="string">&quot;server.port&quot;</span>, <span class="string">&quot;MCAPTCHA_SERVER_PORT&quot;</span>),
(<span class="string">&quot;server.ip&quot;</span>, <span class="string">&quot;MCAPTCHA_SERVER_IP&quot;</span>),
(<span class="string">&quot;server.domain&quot;</span>, <span class="string">&quot;MCAPTCHA_SERVER_DOMAIN&quot;</span>),
(<span class="string">&quot;server.cookie_secret&quot;</span>, <span class="string">&quot;MCAPTCHA_SERVER_COOKIE_SECRET&quot;</span>),
(<span class="string">&quot;server.proxy_has_tls&quot;</span>, <span class="string">&quot;MCAPTCHA_SERVER_PROXY_HAS_TLS&quot;</span>),
(<span class="string">&quot;captcha.salt&quot;</span>, <span class="string">&quot;MCAPTCHA_CAPTCHA_SALT&quot;</span>),
(<span class="string">&quot;captcha.gc&quot;</span>, <span class="string">&quot;MCAPTCHA_CAPTCHA_GC&quot;</span>),
(<span class="string">&quot;captcha.default_difficulty_strategy.avg_traffic_difficulty&quot;</span>, <span class="string">&quot;MCAPTCHA_CAPTCHA_AVG_TRAFFIC_DIFFICULTY&quot;</span>),
(<span class="string">&quot;captcha.default_difficulty_strategy.peak_sustainable_traffic_difficulty&quot;</span>, <span class="string">&quot;MCAPTCHA_CAPTCHA_PEAK_TRAFFIC_DIFFICULTY&quot;</span>),
(<span class="string">&quot;captcha.default_difficulty_strategy.broke_my_site_traffic_difficulty&quot;</span>, <span class="string">&quot;MCAPTCHA_CAPTCHA_BROKE_MY_SITE_TRAFFIC&quot;</span>),
(<span class="string">&quot;smtp.from&quot;</span>, <span class="string">&quot;MCAPTCHA_SMTP_FROM&quot;</span>),
(<span class="string">&quot;smtp.reply&quot;</span>, <span class="string">&quot;MCAPTCHA_SMTP_REPLY_TO&quot;</span>),
(<span class="string">&quot;smtp.url&quot;</span>, <span class="string">&quot;MCAPTCHA_SMTP_URL&quot;</span>),
(<span class="string">&quot;smtp.username&quot;</span>, <span class="string">&quot;MCAPTCHA_SMTP_USERNAME&quot;</span>),
(<span class="string">&quot;smtp.password&quot;</span>, <span class="string">&quot;MCAPTCHA_SMTP_PASSWORD&quot;</span>),
(<span class="string">&quot;smtp.port&quot;</span>, <span class="string">&quot;MCAPTCHA_SMTP_PORT&quot;</span>),
];
<span class="attr">#[cfg(not(tarpaulin_include))]
</span><span class="kw">impl </span>Settings {
<span class="kw">pub fn </span>new() -&gt; <span class="prelude-ty">Result</span>&lt;<span class="self">Self</span>, ConfigError&gt; {
@@ -616,6 +803,17 @@
}
<span class="kw">fn </span>env_override(<span class="kw-2">mut </span>s: ConfigBuilder&lt;DefaultState&gt;) -&gt; ConfigBuilder&lt;DefaultState&gt; {
<span class="kw">for </span>(parameter, env_var_name) <span class="kw">in </span>DEPRECATED_ENV_VARS.iter() {
<span class="kw">if let </span><span class="prelude-val">Ok</span>(val) = env::var(env_var_name) {
<span class="macro">log::warn!</span>(
<span class="string">&quot;Found {env_var_name}. {env_var_name} will be deprecated soon. Please see https://github.com/mCaptcha/mCaptcha/blob/master/docs/CONFIGURATION.md for latest environment variable names&quot;
</span>);
s = s.set_override(parameter, val).unwrap();
}
}
<span class="kw">for </span>(parameter, env_var_name) <span class="kw">in </span>ENV_VAR_CONFIG.iter() {
<span class="kw">if let </span><span class="prelude-val">Ok</span>(val) = env::var(env_var_name) {
<span class="macro">log::debug!</span>(
@@ -645,8 +843,10 @@
<span class="kw">use super</span>::<span class="kw-2">*</span>;
<span class="attr">#[test]
</span><span class="kw">fn </span>env_override_works() {
</span><span class="kw">fn </span>deprecated_env_override_works() {
<span class="kw">use </span><span class="kw">crate</span>::tests::get_settings;
<span class="kw">let </span>init_settings = get_settings();
<span class="comment">// so that it can be tested outside the macro (helper) too
@@ -655,6 +855,126 @@
<span class="macro">macro_rules! </span>helper {
(<span class="macro-nonterminal">$env</span>:expr, <span class="macro-nonterminal">$val</span>:expr, <span class="macro-nonterminal">$val_typed</span>:expr, $(<span class="macro-nonterminal">$param</span>:ident).+) =&gt; {
<span class="macro">println!</span>(<span class="string">&quot;Setting env var {} to {} for test&quot;</span>, <span class="macro-nonterminal">$env</span>, <span class="macro-nonterminal">$val</span>);
env::set_var(<span class="macro-nonterminal">$env</span>, <span class="macro-nonterminal">$val</span>);
new_settings = get_settings();
<span class="macro">assert_eq!</span>(new_settings.$(<span class="macro-nonterminal">$param</span>).+, <span class="macro-nonterminal">$val_typed</span>);
<span class="macro">assert_ne!</span>(new_settings.$(<span class="macro-nonterminal">$param</span>).+, init_settings.$(<span class="macro-nonterminal">$param</span>).+);
env::remove_var(<span class="macro-nonterminal">$env</span>);
};
(<span class="macro-nonterminal">$env</span>:expr, <span class="macro-nonterminal">$val</span>:expr, $(<span class="macro-nonterminal">$param</span>:ident).+) =&gt; {
<span class="macro">helper!</span>(<span class="macro-nonterminal">$env</span>, <span class="macro-nonterminal">$val</span>.to_string(), <span class="macro-nonterminal">$val</span>, $(<span class="macro-nonterminal">$param</span>).+);
};
}
<span class="comment">/* top level */
</span><span class="macro">helper!</span>(<span class="string">&quot;MCAPTCHA_DEBUG&quot;</span>, !init_settings.debug, debug);
<span class="macro">helper!</span>(<span class="string">&quot;MCAPTCHA_COMMERCIAL&quot;</span>, !init_settings.commercial, commercial);
<span class="macro">helper!</span>(<span class="string">&quot;MCAPTCHA_ALLOW_REGISTRATION&quot;</span>, !init_settings.allow_registration, allow_registration);
<span class="macro">helper!</span>(<span class="string">&quot;MCAPTCHA_ALLOW_DEMO&quot;</span>, !init_settings.allow_demo, allow_demo);
<span class="comment">/* database_type */
/* redis.url */
</span><span class="kw">let </span>env = <span class="string">&quot;MCAPTCHA_REDIS_URL&quot;</span>;
<span class="kw">let </span>val = <span class="string">&quot;redis://redis.example.org&quot;</span>;
<span class="macro">println!</span>(<span class="string">&quot;Setting env var {} to {} for test&quot;</span>, env, val);
env::set_var(env, val);
new_settings = get_settings();
<span class="macro">assert_eq!</span>(new_settings.redis.as_ref().unwrap().url, val);
<span class="macro">assert_ne!</span>(
new_settings.redis.as_ref().unwrap().url,
init_settings.redis.as_ref().unwrap().url
);
env::remove_var(env);
<span class="comment">/* redis.pool */
</span><span class="kw">let </span>env = <span class="string">&quot;MCAPTCHA_REDIS_POOL&quot;</span>;
<span class="kw">let </span>val = <span class="number">999</span>;
<span class="macro">println!</span>(<span class="string">&quot;Setting env var {} to {} for test&quot;</span>, env, val);
env::set_var(env, val.to_string());
new_settings = get_settings();
<span class="macro">assert_eq!</span>(new_settings.redis.as_ref().unwrap().pool, val);
<span class="macro">assert_ne!</span>(
new_settings.redis.as_ref().unwrap().pool,
init_settings.redis.as_ref().unwrap().pool
);
env::remove_var(env);
<span class="macro">helper!</span>(<span class="string">&quot;PORT&quot;</span>, <span class="number">0</span>, server.port);
<span class="macro">helper!</span>(<span class="string">&quot;MCAPTCHA_SERVER_DOMAIN&quot;</span>, <span class="string">&quot;example.org&quot;</span>, server.domain);
<span class="macro">helper!</span>(
<span class="string">&quot;MCAPTCHA_SERVER_COOKIE_SECRET&quot;</span>,
<span class="string">&quot;dafasdfsdf&quot;</span>,
server.cookie_secret
);
<span class="macro">helper!</span>(<span class="string">&quot;MCAPTCHA_SERVER_IP&quot;</span>, <span class="string">&quot;9.9.9.9&quot;</span>, server.ip);
<span class="macro">helper!</span>(<span class="string">&quot;MCAPTCHA_SERVER_PROXY_HAS_TLS&quot;</span>, <span class="bool-val">true</span>, server.proxy_has_tls);
<span class="comment">/* captcha */
</span><span class="macro">helper!</span>(<span class="string">&quot;MCAPTCHA_CAPTCHA_SALT&quot;</span>, <span class="string">&quot;foobarasdfasdf&quot;</span>, captcha.salt);
<span class="macro">helper!</span>(<span class="string">&quot;MCAPTCHA_CAPTCHA_GC&quot;</span>, <span class="number">500</span>, captcha.gc);
<span class="macro">helper!</span>(
<span class="string">&quot;MCAPTCHA_captcha_RUNNERS&quot;</span>,
<span class="string">&quot;500&quot;</span>,
<span class="prelude-val">Some</span>(<span class="number">500</span>),
captcha.runners
);
<span class="macro">helper!</span>(
<span class="string">&quot;MCAPTCHA_CAPTCHA_AVG_TRAFFIC_DIFFICULTY&quot;</span>,
<span class="number">999</span>,
captcha.default_difficulty_strategy.avg_traffic_difficulty
);
<span class="macro">helper!</span>(<span class="string">&quot;MCAPTCHA_CAPTCHA_PEAK_TRAFFIC_DIFFICULTY&quot;</span>, <span class="number">999 </span>, captcha.default_difficulty_strategy.peak_sustainable_traffic_difficulty);
<span class="macro">helper!</span>(<span class="string">&quot;MCAPTCHA_CAPTCHA_BROKE_MY_SITE_TRAFFIC&quot;</span>, <span class="number">999 </span>, captcha.default_difficulty_strategy.broke_my_site_traffic_difficulty);
<span class="comment">/* SMTP */
</span><span class="kw">let </span>vals = [
<span class="string">&quot;MCAPTCHA_SMTP_FROM&quot;</span>,
<span class="string">&quot;MCAPTCHA_SMTP_REPLY_TO&quot;</span>,
<span class="string">&quot;MCAPTCHA_SMTP_URL&quot;</span>,
<span class="string">&quot;MCAPTCHA_SMTP_USERNAME&quot;</span>,
<span class="string">&quot;MCAPTCHA_SMTP_PASSWORD&quot;</span>,
<span class="string">&quot;MCAPTCHA_SMTP_PORT&quot;</span>,
];
<span class="kw">for </span>env <span class="kw">in </span>vals.iter() {
<span class="macro">println!</span>(<span class="string">&quot;Setting env var {} to {} for test&quot;</span>, env, env);
env::set_var(env, env);
}
<span class="kw">let </span>port = <span class="number">9999</span>;
env::set_var(<span class="string">&quot;MCAPTCHA_SMTP_PORT&quot;</span>, port.to_string());
new_settings = get_settings();
<span class="kw">let </span>smtp_new = new_settings.smtp.as_ref().unwrap();
<span class="kw">let </span>smtp_old = init_settings.smtp.as_ref().unwrap();
<span class="macro">assert_eq!</span>(smtp_new.from, <span class="string">&quot;MCAPTCHA_SMTP_FROM&quot;</span>);
<span class="macro">assert_eq!</span>(smtp_new.reply, <span class="string">&quot;MCAPTCHA_SMTP_REPLY_TO&quot;</span>);
<span class="macro">assert_eq!</span>(smtp_new.username, <span class="string">&quot;MCAPTCHA_SMTP_USERNAME&quot;</span>);
<span class="macro">assert_eq!</span>(smtp_new.password, <span class="string">&quot;MCAPTCHA_SMTP_PASSWORD&quot;</span>);
<span class="macro">assert_eq!</span>(smtp_new.port, port);
<span class="macro">assert_ne!</span>(smtp_new, smtp_old);
<span class="kw">for </span>env <span class="kw">in </span>vals.iter() {
env::remove_var(env);
}
}
<span class="attr">#[test]
</span><span class="kw">fn </span>env_override_works() {
<span class="kw">use </span><span class="kw">crate</span>::tests::get_settings;
<span class="kw">let </span>init_settings = get_settings();
<span class="comment">// so that it can be tested outside the macro (helper) too
</span><span class="kw">let </span><span class="kw-2">mut </span>new_settings;
<span class="macro">macro_rules! </span>helper {
(<span class="macro-nonterminal">$env</span>:expr, <span class="macro-nonterminal">$val</span>:expr, <span class="macro-nonterminal">$val_typed</span>:expr, $(<span class="macro-nonterminal">$param</span>:ident).+) =&gt; {