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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="Source to the Rust file `src/server/h1writer.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>h1writer.rs.html -- source</title><link rel="stylesheet" type="text/css" href="../../../normalize.css"><link rel="stylesheet" type="text/css" href="../../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../../dark.css"><link rel="stylesheet" type="text/css" href="../../../light.css" id="themeStyle"><script src="../../../storage.js"></script></head><body class="rustdoc source"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu">☰</div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!"><img src="../../../brush.svg" width="18" alt="Pick another theme!"></button><div id="theme-choices"></div></div><script src="../../../theme.js"></script><nav class="sub"><form class="search-form js-only"><div class="search-container"><input class="search-input" name="search" autocomplete="off" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><a id="settings-menu" href="../../../settings.html"><img src="../../../wheel.svg" width="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><pre class="line-numbers"><span id="1"> 1</span>
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|||
|
|
<span id="309">309</span>
|
|||
|
|
<span id="310">310</span>
|
|||
|
|
<span id="311">311</span>
|
|||
|
|
<span id="312">312</span>
|
|||
|
|
<span id="313">313</span>
|
|||
|
|
<span id="314">314</span>
|
|||
|
|
<span id="315">315</span>
|
|||
|
|
<span id="316">316</span>
|
|||
|
|
<span id="317">317</span>
|
|||
|
|
<span id="318">318</span>
|
|||
|
|
<span id="319">319</span>
|
|||
|
|
<span id="320">320</span>
|
|||
|
|
<span id="321">321</span>
|
|||
|
|
<span id="322">322</span>
|
|||
|
|
<span id="323">323</span>
|
|||
|
|
<span id="324">324</span>
|
|||
|
|
<span id="325">325</span>
|
|||
|
|
<span id="326">326</span>
|
|||
|
|
<span id="327">327</span>
|
|||
|
|
<span id="328">328</span>
|
|||
|
|
<span id="329">329</span>
|
|||
|
|
<span id="330">330</span>
|
|||
|
|
<span id="331">331</span>
|
|||
|
|
<span id="332">332</span>
|
|||
|
|
<span id="333">333</span>
|
|||
|
|
<span id="334">334</span>
|
|||
|
|
<span id="335">335</span>
|
|||
|
|
<span id="336">336</span>
|
|||
|
|
<span id="337">337</span>
|
|||
|
|
<span id="338">338</span>
|
|||
|
|
<span id="339">339</span>
|
|||
|
|
<span id="340">340</span>
|
|||
|
|
<span id="341">341</span>
|
|||
|
|
<span id="342">342</span>
|
|||
|
|
<span id="343">343</span>
|
|||
|
|
<span id="344">344</span>
|
|||
|
|
<span id="345">345</span>
|
|||
|
|
</pre><pre class="rust ">
|
|||
|
|
<span class="comment">// #![cfg_attr(feature = "cargo-clippy", allow(redundant_field_names))]</span>
|
|||
|
|
|
|||
|
|
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">io</span>::{<span class="self">self</span>, <span class="ident">Write</span>};
|
|||
|
|
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">rc</span>::<span class="ident">Rc</span>;
|
|||
|
|
|
|||
|
|
<span class="kw">use</span> <span class="ident">bytes</span>::{<span class="ident">BufMut</span>, <span class="ident">BytesMut</span>};
|
|||
|
|
<span class="kw">use</span> <span class="ident">futures</span>::{<span class="ident">Async</span>, <span class="ident">Poll</span>};
|
|||
|
|
<span class="kw">use</span> <span class="ident">tokio_io</span>::<span class="ident">AsyncWrite</span>;
|
|||
|
|
|
|||
|
|
<span class="kw">use</span> <span class="kw">super</span>::<span class="ident">helpers</span>;
|
|||
|
|
<span class="kw">use</span> <span class="kw">super</span>::<span class="ident">output</span>::{<span class="ident">Output</span>, <span class="ident">ResponseInfo</span>, <span class="ident">ResponseLength</span>};
|
|||
|
|
<span class="kw">use</span> <span class="kw">super</span>::<span class="ident">settings</span>::<span class="ident">WorkerSettings</span>;
|
|||
|
|
<span class="kw">use</span> <span class="kw">super</span>::<span class="ident">Request</span>;
|
|||
|
|
<span class="kw">use</span> <span class="kw">super</span>::{<span class="ident">Writer</span>, <span class="ident">WriterState</span>, <span class="ident">MAX_WRITE_BUFFER_SIZE</span>};
|
|||
|
|
<span class="kw">use</span> <span class="ident">body</span>::{<span class="ident">Binary</span>, <span class="ident">Body</span>};
|
|||
|
|
<span class="kw">use</span> <span class="ident">header</span>::<span class="ident">ContentEncoding</span>;
|
|||
|
|
<span class="kw">use</span> <span class="ident">http</span>::<span class="ident">header</span>::{
|
|||
|
|
<span class="ident">HeaderValue</span>, <span class="ident">CONNECTION</span>, <span class="ident">CONTENT_ENCODING</span>, <span class="ident">CONTENT_LENGTH</span>, <span class="ident">DATE</span>, <span class="ident">TRANSFER_ENCODING</span>,
|
|||
|
|
};
|
|||
|
|
<span class="kw">use</span> <span class="ident">http</span>::{<span class="ident">Method</span>, <span class="ident">Version</span>};
|
|||
|
|
<span class="kw">use</span> <span class="ident">httpresponse</span>::<span class="ident">HttpResponse</span>;
|
|||
|
|
|
|||
|
|
<span class="kw">const</span> <span class="ident">AVERAGE_HEADER_SIZE</span>: <span class="ident">usize</span> <span class="op">=</span> <span class="number">30</span>; <span class="comment">// totally scientific</span>
|
|||
|
|
|
|||
|
|
<span class="macro">bitflags</span><span class="macro">!</span> {
|
|||
|
|
<span class="kw">struct</span> <span class="ident">Flags</span>: <span class="ident">u8</span> {
|
|||
|
|
<span class="kw">const</span> <span class="ident">STARTED</span> <span class="op">=</span> <span class="number">0b0000_0001</span>;
|
|||
|
|
<span class="kw">const</span> <span class="ident">UPGRADE</span> <span class="op">=</span> <span class="number">0b0000_0010</span>;
|
|||
|
|
<span class="kw">const</span> <span class="ident">KEEPALIVE</span> <span class="op">=</span> <span class="number">0b0000_0100</span>;
|
|||
|
|
<span class="kw">const</span> <span class="ident">DISCONNECTED</span> <span class="op">=</span> <span class="number">0b0000_1000</span>;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
<span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">struct</span> <span class="ident">H1Writer</span><span class="op"><</span><span class="ident">T</span>: <span class="ident">AsyncWrite</span>, <span class="ident">H</span>: <span class="lifetime">'static</span><span class="op">></span> {
|
|||
|
|
<span class="ident">flags</span>: <span class="ident">Flags</span>,
|
|||
|
|
<span class="ident">stream</span>: <span class="ident">T</span>,
|
|||
|
|
<span class="ident">written</span>: <span class="ident">u64</span>,
|
|||
|
|
<span class="ident">headers_size</span>: <span class="ident">u32</span>,
|
|||
|
|
<span class="ident">buffer</span>: <span class="ident">Output</span>,
|
|||
|
|
<span class="ident">buffer_capacity</span>: <span class="ident">usize</span>,
|
|||
|
|
<span class="ident">settings</span>: <span class="ident">Rc</span><span class="op"><</span><span class="ident">WorkerSettings</span><span class="op"><</span><span class="ident">H</span><span class="op">>></span>,
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
<span class="kw">impl</span><span class="op"><</span><span class="ident">T</span>: <span class="ident">AsyncWrite</span>, <span class="ident">H</span>: <span class="lifetime">'static</span><span class="op">></span> <span class="ident">H1Writer</span><span class="op"><</span><span class="ident">T</span>, <span class="ident">H</span><span class="op">></span> {
|
|||
|
|
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">new</span>(<span class="ident">stream</span>: <span class="ident">T</span>, <span class="ident">settings</span>: <span class="ident">Rc</span><span class="op"><</span><span class="ident">WorkerSettings</span><span class="op"><</span><span class="ident">H</span><span class="op">>></span>) <span class="op">-></span> <span class="ident">H1Writer</span><span class="op"><</span><span class="ident">T</span>, <span class="ident">H</span><span class="op">></span> {
|
|||
|
|
<span class="ident">H1Writer</span> {
|
|||
|
|
<span class="ident">flags</span>: <span class="ident">Flags</span>::<span class="ident">KEEPALIVE</span>,
|
|||
|
|
<span class="ident">written</span>: <span class="number">0</span>,
|
|||
|
|
<span class="ident">headers_size</span>: <span class="number">0</span>,
|
|||
|
|
<span class="ident">buffer</span>: <span class="ident">Output</span>::<span class="ident">Buffer</span>(<span class="ident">settings</span>.<span class="ident">get_bytes</span>()),
|
|||
|
|
<span class="ident">buffer_capacity</span>: <span class="number">0</span>,
|
|||
|
|
<span class="ident">stream</span>,
|
|||
|
|
<span class="ident">settings</span>,
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">get_mut</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-></span> <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">T</span> {
|
|||
|
|
<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>.<span class="ident">stream</span>
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">reset</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>) {
|
|||
|
|
<span class="self">self</span>.<span class="ident">written</span> <span class="op">=</span> <span class="number">0</span>;
|
|||
|
|
<span class="self">self</span>.<span class="ident">flags</span> <span class="op">=</span> <span class="ident">Flags</span>::<span class="ident">KEEPALIVE</span>;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">disconnected</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>) {}
|
|||
|
|
|
|||
|
|
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">keepalive</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">bool</span> {
|
|||
|
|
<span class="self">self</span>.<span class="ident">flags</span>.<span class="ident">contains</span>(<span class="ident">Flags</span>::<span class="ident">KEEPALIVE</span>) <span class="op">&&</span> <span class="op">!</span><span class="self">self</span>.<span class="ident">flags</span>.<span class="ident">contains</span>(<span class="ident">Flags</span>::<span class="ident">UPGRADE</span>)
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
<span class="kw">fn</span> <span class="ident">write_data</span>(<span class="ident">stream</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">T</span>, <span class="ident">data</span>: <span class="kw-2">&</span>[<span class="ident">u8</span>]) <span class="op">-></span> <span class="ident">io</span>::<span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">usize</span><span class="op">></span> {
|
|||
|
|
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">written</span> <span class="op">=</span> <span class="number">0</span>;
|
|||
|
|
<span class="kw">while</span> <span class="ident">written</span> <span class="op"><</span> <span class="ident">data</span>.<span class="ident">len</span>() {
|
|||
|
|
<span class="kw">match</span> <span class="ident">stream</span>.<span class="ident">write</span>(<span class="kw-2">&</span><span class="ident">data</span>[<span class="ident">written</span>..]) {
|
|||
|
|
<span class="prelude-val">Ok</span>(<span class="number">0</span>) <span class="op">=></span> {
|
|||
|
|
<span class="kw">return</span> <span class="prelude-val">Err</span>(<span class="ident">io</span>::<span class="ident">Error</span>::<span class="ident">new</span>(<span class="ident">io</span>::<span class="ident">ErrorKind</span>::<span class="ident">WriteZero</span>, <span class="string">""</span>));
|
|||
|
|
}
|
|||
|
|
<span class="prelude-val">Ok</span>(<span class="ident">n</span>) <span class="op">=></span> {
|
|||
|
|
<span class="ident">written</span> <span class="op">+=</span> <span class="ident">n</span>;
|
|||
|
|
}
|
|||
|
|
<span class="prelude-val">Err</span>(<span class="kw-2">ref</span> <span class="ident">e</span>) <span class="kw">if</span> <span class="ident">e</span>.<span class="ident">kind</span>() <span class="op">==</span> <span class="ident">io</span>::<span class="ident">ErrorKind</span>::<span class="ident">WouldBlock</span> <span class="op">=></span> {
|
|||
|
|
<span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="ident">written</span>)
|
|||
|
|
}
|
|||
|
|
<span class="prelude-val">Err</span>(<span class="ident">err</span>) <span class="op">=></span> <span class="kw">return</span> <span class="prelude-val">Err</span>(<span class="ident">err</span>),
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
<span class="prelude-val">Ok</span>(<span class="ident">written</span>)
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
<span class="kw">impl</span><span class="op"><</span><span class="ident">T</span>: <span class="ident">AsyncWrite</span>, <span class="ident">H</span>: <span class="lifetime">'static</span><span class="op">></span> <span class="ident">Drop</span> <span class="kw">for</span> <span class="ident">H1Writer</span><span class="op"><</span><span class="ident">T</span>, <span class="ident">H</span><span class="op">></span> {
|
|||
|
|
<span class="kw">fn</span> <span class="ident">drop</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>) {
|
|||
|
|
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">bytes</span>) <span class="op">=</span> <span class="self">self</span>.<span class="ident">buffer</span>.<span class="ident">take_option</span>() {
|
|||
|
|
<span class="self">self</span>.<span class="ident">settings</span>.<span class="ident">release_bytes</span>(<span class="ident">bytes</span>);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
<span class="kw">impl</span><span class="op"><</span><span class="ident">T</span>: <span class="ident">AsyncWrite</span>, <span class="ident">H</span>: <span class="lifetime">'static</span><span class="op">></span> <span class="ident">Writer</span> <span class="kw">for</span> <span class="ident">H1Writer</span><span class="op"><</span><span class="ident">T</span>, <span class="ident">H</span><span class="op">></span> {
|
|||
|
|
<span class="attribute">#[<span class="ident">inline</span>]</span>
|
|||
|
|
<span class="kw">fn</span> <span class="ident">written</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">u64</span> {
|
|||
|
|
<span class="self">self</span>.<span class="ident">written</span>
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
<span class="attribute">#[<span class="ident">inline</span>]</span>
|
|||
|
|
<span class="kw">fn</span> <span class="ident">set_date</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>) {
|
|||
|
|
<span class="self">self</span>.<span class="ident">settings</span>.<span class="ident">set_date</span>(<span class="self">self</span>.<span class="ident">buffer</span>.<span class="ident">as_mut</span>(), <span class="bool-val">true</span>)
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
<span class="attribute">#[<span class="ident">inline</span>]</span>
|
|||
|
|
<span class="kw">fn</span> <span class="ident">buffer</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-></span> <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">BytesMut</span> {
|
|||
|
|
<span class="self">self</span>.<span class="ident">buffer</span>.<span class="ident">as_mut</span>()
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
<span class="kw">fn</span> <span class="ident">start</span>(
|
|||
|
|
<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">req</span>: <span class="kw-2">&</span><span class="ident">Request</span>, <span class="ident">msg</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">HttpResponse</span>, <span class="ident">encoding</span>: <span class="ident">ContentEncoding</span>,
|
|||
|
|
) <span class="op">-></span> <span class="ident">io</span>::<span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">WriterState</span><span class="op">></span> {
|
|||
|
|
<span class="comment">// prepare task</span>
|
|||
|
|
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">info</span> <span class="op">=</span> <span class="ident">ResponseInfo</span>::<span class="ident">new</span>(<span class="ident">req</span>.<span class="ident">inner</span>.<span class="ident">method</span> <span class="op">==</span> <span class="ident">Method</span>::<span class="ident">HEAD</span>);
|
|||
|
|
<span class="self">self</span>.<span class="ident">buffer</span>.<span class="ident">for_server</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">info</span>, <span class="kw-2">&</span><span class="ident">req</span>.<span class="ident">inner</span>, <span class="ident">msg</span>, <span class="ident">encoding</span>);
|
|||
|
|
<span class="kw">if</span> <span class="ident">msg</span>.<span class="ident">keep_alive</span>().<span class="ident">unwrap_or_else</span>(<span class="op">||</span> <span class="ident">req</span>.<span class="ident">keep_alive</span>()) {
|
|||
|
|
<span class="self">self</span>.<span class="ident">flags</span> <span class="op">=</span> <span class="ident">Flags</span>::<span class="ident">STARTED</span> <span class="op">|</span> <span class="ident">Flags</span>::<span class="ident">KEEPALIVE</span>;
|
|||
|
|
} <span class="kw">else</span> {
|
|||
|
|
<span class="self">self</span>.<span class="ident">flags</span> <span class="op">=</span> <span class="ident">Flags</span>::<span class="ident">STARTED</span>;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
<span class="comment">// Connection upgrade</span>
|
|||
|
|
<span class="kw">let</span> <span class="ident">version</span> <span class="op">=</span> <span class="ident">msg</span>.<span class="ident">version</span>().<span class="ident">unwrap_or_else</span>(<span class="op">||</span> <span class="ident">req</span>.<span class="ident">inner</span>.<span class="ident">version</span>);
|
|||
|
|
<span class="kw">if</span> <span class="ident">msg</span>.<span class="ident">upgrade</span>() {
|
|||
|
|
<span class="self">self</span>.<span class="ident">flags</span>.<span class="ident">insert</span>(<span class="ident">Flags</span>::<span class="ident">UPGRADE</span>);
|
|||
|
|
<span class="ident">msg</span>.<span class="ident">headers_mut</span>()
|
|||
|
|
.<span class="ident">insert</span>(<span class="ident">CONNECTION</span>, <span class="ident">HeaderValue</span>::<span class="ident">from_static</span>(<span class="string">"upgrade"</span>));
|
|||
|
|
}
|
|||
|
|
<span class="comment">// keep-alive</span>
|
|||
|
|
<span class="kw">else</span> <span class="kw">if</span> <span class="self">self</span>.<span class="ident">flags</span>.<span class="ident">contains</span>(<span class="ident">Flags</span>::<span class="ident">KEEPALIVE</span>) {
|
|||
|
|
<span class="kw">if</span> <span class="ident">version</span> <span class="op"><</span> <span class="ident">Version</span>::<span class="ident">HTTP_11</span> {
|
|||
|
|
<span class="ident">msg</span>.<span class="ident">headers_mut</span>()
|
|||
|
|
.<span class="ident">insert</span>(<span class="ident">CONNECTION</span>, <span class="ident">HeaderValue</span>::<span class="ident">from_static</span>(<span class="string">"keep-alive"</span>));
|
|||
|
|
}
|
|||
|
|
} <span class="kw">else</span> <span class="kw">if</span> <span class="ident">version</span> <span class="op">>=</span> <span class="ident">Version</span>::<span class="ident">HTTP_11</span> {
|
|||
|
|
<span class="ident">msg</span>.<span class="ident">headers_mut</span>()
|
|||
|
|
.<span class="ident">insert</span>(<span class="ident">CONNECTION</span>, <span class="ident">HeaderValue</span>::<span class="ident">from_static</span>(<span class="string">"close"</span>));
|
|||
|
|
}
|
|||
|
|
<span class="kw">let</span> <span class="ident">body</span> <span class="op">=</span> <span class="ident">msg</span>.<span class="ident">replace_body</span>(<span class="ident">Body</span>::<span class="ident">Empty</span>);
|
|||
|
|
|
|||
|
|
<span class="comment">// render message</span>
|
|||
|
|
{
|
|||
|
|
<span class="comment">// output buffer</span>
|
|||
|
|
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">buffer</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">buffer</span>.<span class="ident">as_mut</span>();
|
|||
|
|
|
|||
|
|
<span class="kw">let</span> <span class="ident">reason</span> <span class="op">=</span> <span class="ident">msg</span>.<span class="ident">reason</span>().<span class="ident">as_bytes</span>();
|
|||
|
|
<span class="kw">if</span> <span class="kw">let</span> <span class="ident">Body</span>::<span class="ident">Binary</span>(<span class="kw-2">ref</span> <span class="ident">bytes</span>) <span class="op">=</span> <span class="ident">body</span> {
|
|||
|
|
<span class="ident">buffer</span>.<span class="ident">reserve</span>(
|
|||
|
|
<span class="number">256</span>
|
|||
|
|
<span class="op">+</span> <span class="ident">msg</span>.<span class="ident">headers</span>().<span class="ident">len</span>() <span class="op">*</span> <span class="ident">AVERAGE_HEADER_SIZE</span>
|
|||
|
|
<span class="op">+</span> <span class="ident">bytes</span>.<span class="ident">len</span>()
|
|||
|
|
<span class="op">+</span> <span class="ident">reason</span>.<span class="ident">len</span>(),
|
|||
|
|
);
|
|||
|
|
} <span class="kw">else</span> {
|
|||
|
|
<span class="ident">buffer</span>.<span class="ident">reserve</span>(
|
|||
|
|
<span class="number">256</span> <span class="op">+</span> <span class="ident">msg</span>.<span class="ident">headers</span>().<span class="ident">len</span>() <span class="op">*</span> <span class="ident">AVERAGE_HEADER_SIZE</span> <span class="op">+</span> <span class="ident">reason</span>.<span class="ident">len</span>(),
|
|||
|
|
);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
<span class="comment">// status line</span>
|
|||
|
|
<span class="ident">helpers</span>::<span class="ident">write_status_line</span>(<span class="ident">version</span>, <span class="ident">msg</span>.<span class="ident">status</span>().<span class="ident">as_u16</span>(), <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">buffer</span>);
|
|||
|
|
<span class="ident">buffer</span>.<span class="ident">extend_from_slice</span>(<span class="ident">reason</span>);
|
|||
|
|
|
|||
|
|
<span class="comment">// content length</span>
|
|||
|
|
<span class="kw">match</span> <span class="ident">info</span>.<span class="ident">length</span> {
|
|||
|
|
<span class="ident">ResponseLength</span>::<span class="ident">Chunked</span> <span class="op">=></span> {
|
|||
|
|
<span class="ident">buffer</span>.<span class="ident">extend_from_slice</span>(<span class="string">b"\r\ntransfer-encoding: chunked\r\n"</span>)
|
|||
|
|
}
|
|||
|
|
<span class="ident">ResponseLength</span>::<span class="ident">Zero</span> <span class="op">=></span> {
|
|||
|
|
<span class="ident">buffer</span>.<span class="ident">extend_from_slice</span>(<span class="string">b"\r\ncontent-length: 0\r\n"</span>)
|
|||
|
|
}
|
|||
|
|
<span class="ident">ResponseLength</span>::<span class="ident">Length</span>(<span class="ident">len</span>) <span class="op">=></span> {
|
|||
|
|
<span class="ident">helpers</span>::<span class="ident">write_content_length</span>(<span class="ident">len</span>, <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">buffer</span>)
|
|||
|
|
}
|
|||
|
|
<span class="ident">ResponseLength</span>::<span class="ident">Length64</span>(<span class="ident">len</span>) <span class="op">=></span> {
|
|||
|
|
<span class="ident">buffer</span>.<span class="ident">extend_from_slice</span>(<span class="string">b"\r\ncontent-length: "</span>);
|
|||
|
|
<span class="macro">write</span><span class="macro">!</span>(<span class="ident">buffer</span>.<span class="ident">writer</span>(), <span class="string">"{}"</span>, <span class="ident">len</span>)<span class="question-mark">?</span>;
|
|||
|
|
<span class="ident">buffer</span>.<span class="ident">extend_from_slice</span>(<span class="string">b"\r\n"</span>);
|
|||
|
|
}
|
|||
|
|
<span class="ident">ResponseLength</span>::<span class="prelude-val">None</span> <span class="op">=></span> <span class="ident">buffer</span>.<span class="ident">extend_from_slice</span>(<span class="string">b"\r\n"</span>),
|
|||
|
|
}
|
|||
|
|
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">ce</span>) <span class="op">=</span> <span class="ident">info</span>.<span class="ident">content_encoding</span> {
|
|||
|
|
<span class="ident">buffer</span>.<span class="ident">extend_from_slice</span>(<span class="string">b"content-encoding: "</span>);
|
|||
|
|
<span class="ident">buffer</span>.<span class="ident">extend_from_slice</span>(<span class="ident">ce</span>.<span class="ident">as_ref</span>());
|
|||
|
|
<span class="ident">buffer</span>.<span class="ident">extend_from_slice</span>(<span class="string">b"\r\n"</span>);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
<span class="comment">// write headers</span>
|
|||
|
|
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">pos</span> <span class="op">=</span> <span class="number">0</span>;
|
|||
|
|
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">has_date</span> <span class="op">=</span> <span class="bool-val">false</span>;
|
|||
|
|
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">remaining</span> <span class="op">=</span> <span class="ident">buffer</span>.<span class="ident">remaining_mut</span>();
|
|||
|
|
<span class="kw">unsafe</span> {
|
|||
|
|
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">buf</span> <span class="op">=</span> <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="kw-2">*</span>(<span class="ident">buffer</span>.<span class="ident">bytes_mut</span>() <span class="kw">as</span> <span class="kw-2">*</span><span class="kw-2">mut</span> [<span class="ident">u8</span>]);
|
|||
|
|
<span class="kw">for</span> (<span class="ident">key</span>, <span class="ident">value</span>) <span class="kw">in</span> <span class="ident">msg</span>.<span class="ident">headers</span>() {
|
|||
|
|
<span class="kw">match</span> <span class="kw-2">*</span><span class="ident">key</span> {
|
|||
|
|
<span class="ident">TRANSFER_ENCODING</span> <span class="op">=></span> <span class="kw">continue</span>,
|
|||
|
|
<span class="ident">CONTENT_ENCODING</span> <span class="op">=></span> <span class="kw">if</span> <span class="ident">encoding</span> <span class="op">!=</span> <span class="ident">ContentEncoding</span>::<span class="ident">Identity</span> {
|
|||
|
|
<span class="kw">continue</span>;
|
|||
|
|
},
|
|||
|
|
<span class="ident">CONTENT_LENGTH</span> <span class="op">=></span> <span class="kw">match</span> <span class="ident">info</span>.<span class="ident">length</span> {
|
|||
|
|
<span class="ident">ResponseLength</span>::<span class="prelude-val">None</span> <span class="op">=></span> (),
|
|||
|
|
<span class="kw">_</span> <span class="op">=></span> <span class="kw">continue</span>,
|
|||
|
|
},
|
|||
|
|
<span class="ident">DATE</span> <span class="op">=></span> {
|
|||
|
|
<span class="ident">has_date</span> <span class="op">=</span> <span class="bool-val">true</span>;
|
|||
|
|
}
|
|||
|
|
<span class="kw">_</span> <span class="op">=></span> (),
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
<span class="kw">let</span> <span class="ident">v</span> <span class="op">=</span> <span class="ident">value</span>.<span class="ident">as_ref</span>();
|
|||
|
|
<span class="kw">let</span> <span class="ident">k</span> <span class="op">=</span> <span class="ident">key</span>.<span class="ident">as_str</span>().<span class="ident">as_bytes</span>();
|
|||
|
|
<span class="kw">let</span> <span class="ident">len</span> <span class="op">=</span> <span class="ident">k</span>.<span class="ident">len</span>() <span class="op">+</span> <span class="ident">v</span>.<span class="ident">len</span>() <span class="op">+</span> <span class="number">4</span>;
|
|||
|
|
<span class="kw">if</span> <span class="ident">len</span> <span class="op">></span> <span class="ident">remaining</span> {
|
|||
|
|
<span class="ident">buffer</span>.<span class="ident">advance_mut</span>(<span class="ident">pos</span>);
|
|||
|
|
<span class="ident">pos</span> <span class="op">=</span> <span class="number">0</span>;
|
|||
|
|
<span class="ident">buffer</span>.<span class="ident">reserve</span>(<span class="ident">len</span>);
|
|||
|
|
<span class="ident">remaining</span> <span class="op">=</span> <span class="ident">buffer</span>.<span class="ident">remaining_mut</span>();
|
|||
|
|
<span class="ident">buf</span> <span class="op">=</span> <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="kw-2">*</span>(<span class="ident">buffer</span>.<span class="ident">bytes_mut</span>() <span class="kw">as</span> <span class="kw-2">*</span><span class="kw-2">mut</span> <span class="kw">_</span>);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
<span class="ident">buf</span>[<span class="ident">pos</span>..<span class="ident">pos</span> <span class="op">+</span> <span class="ident">k</span>.<span class="ident">len</span>()].<span class="ident">copy_from_slice</span>(<span class="ident">k</span>);
|
|||
|
|
<span class="ident">pos</span> <span class="op">+=</span> <span class="ident">k</span>.<span class="ident">len</span>();
|
|||
|
|
<span class="ident">buf</span>[<span class="ident">pos</span>..<span class="ident">pos</span> <span class="op">+</span> <span class="number">2</span>].<span class="ident">copy_from_slice</span>(<span class="string">b": "</span>);
|
|||
|
|
<span class="ident">pos</span> <span class="op">+=</span> <span class="number">2</span>;
|
|||
|
|
<span class="ident">buf</span>[<span class="ident">pos</span>..<span class="ident">pos</span> <span class="op">+</span> <span class="ident">v</span>.<span class="ident">len</span>()].<span class="ident">copy_from_slice</span>(<span class="ident">v</span>);
|
|||
|
|
<span class="ident">pos</span> <span class="op">+=</span> <span class="ident">v</span>.<span class="ident">len</span>();
|
|||
|
|
<span class="ident">buf</span>[<span class="ident">pos</span>..<span class="ident">pos</span> <span class="op">+</span> <span class="number">2</span>].<span class="ident">copy_from_slice</span>(<span class="string">b"\r\n"</span>);
|
|||
|
|
<span class="ident">pos</span> <span class="op">+=</span> <span class="number">2</span>;
|
|||
|
|
<span class="ident">remaining</span> <span class="op">-=</span> <span class="ident">len</span>;
|
|||
|
|
}
|
|||
|
|
<span class="ident">buffer</span>.<span class="ident">advance_mut</span>(<span class="ident">pos</span>);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
<span class="comment">// optimized date header, set_date writes \r\n</span>
|
|||
|
|
<span class="kw">if</span> <span class="op">!</span><span class="ident">has_date</span> {
|
|||
|
|
<span class="self">self</span>.<span class="ident">settings</span>.<span class="ident">set_date</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">buffer</span>, <span class="bool-val">true</span>);
|
|||
|
|
} <span class="kw">else</span> {
|
|||
|
|
<span class="comment">// msg eof</span>
|
|||
|
|
<span class="ident">buffer</span>.<span class="ident">extend_from_slice</span>(<span class="string">b"\r\n"</span>);
|
|||
|
|
}
|
|||
|
|
<span class="self">self</span>.<span class="ident">headers_size</span> <span class="op">=</span> <span class="ident">buffer</span>.<span class="ident">len</span>() <span class="kw">as</span> <span class="ident">u32</span>;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
<span class="kw">if</span> <span class="kw">let</span> <span class="ident">Body</span>::<span class="ident">Binary</span>(<span class="ident">bytes</span>) <span class="op">=</span> <span class="ident">body</span> {
|
|||
|
|
<span class="self">self</span>.<span class="ident">written</span> <span class="op">=</span> <span class="ident">bytes</span>.<span class="ident">len</span>() <span class="kw">as</span> <span class="ident">u64</span>;
|
|||
|
|
<span class="self">self</span>.<span class="ident">buffer</span>.<span class="ident">write</span>(<span class="ident">bytes</span>.<span class="ident">as_ref</span>())<span class="question-mark">?</span>;
|
|||
|
|
} <span class="kw">else</span> {
|
|||
|
|
<span class="comment">// capacity, makes sense only for streaming or actor</span>
|
|||
|
|
<span class="self">self</span>.<span class="ident">buffer_capacity</span> <span class="op">=</span> <span class="ident">msg</span>.<span class="ident">write_buffer_capacity</span>();
|
|||
|
|
|
|||
|
|
<span class="ident">msg</span>.<span class="ident">replace_body</span>(<span class="ident">body</span>);
|
|||
|
|
}
|
|||
|
|
<span class="prelude-val">Ok</span>(<span class="ident">WriterState</span>::<span class="ident">Done</span>)
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
<span class="kw">fn</span> <span class="ident">write</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">payload</span>: <span class="kw-2">&</span><span class="ident">Binary</span>) <span class="op">-></span> <span class="ident">io</span>::<span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">WriterState</span><span class="op">></span> {
|
|||
|
|
<span class="self">self</span>.<span class="ident">written</span> <span class="op">+=</span> <span class="ident">payload</span>.<span class="ident">len</span>() <span class="kw">as</span> <span class="ident">u64</span>;
|
|||
|
|
<span class="kw">if</span> <span class="op">!</span><span class="self">self</span>.<span class="ident">flags</span>.<span class="ident">contains</span>(<span class="ident">Flags</span>::<span class="ident">DISCONNECTED</span>) {
|
|||
|
|
<span class="kw">if</span> <span class="self">self</span>.<span class="ident">flags</span>.<span class="ident">contains</span>(<span class="ident">Flags</span>::<span class="ident">STARTED</span>) {
|
|||
|
|
<span class="comment">// shortcut for upgraded connection</span>
|
|||
|
|
<span class="kw">if</span> <span class="self">self</span>.<span class="ident">flags</span>.<span class="ident">contains</span>(<span class="ident">Flags</span>::<span class="ident">UPGRADE</span>) {
|
|||
|
|
<span class="kw">if</span> <span class="self">self</span>.<span class="ident">buffer</span>.<span class="ident">is_empty</span>() {
|
|||
|
|
<span class="kw">let</span> <span class="ident">pl</span>: <span class="kw-2">&</span>[<span class="ident">u8</span>] <span class="op">=</span> <span class="ident">payload</span>.<span class="ident">as_ref</span>();
|
|||
|
|
<span class="kw">let</span> <span class="ident">n</span> <span class="op">=</span> <span class="kw">match</span> <span class="self">Self</span>::<span class="ident">write_data</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>.<span class="ident">stream</span>, <span class="ident">pl</span>) {
|
|||
|
|
<span class="prelude-val">Err</span>(<span class="ident">err</span>) <span class="op">=></span> {
|
|||
|
|
<span class="kw">if</span> <span class="ident">err</span>.<span class="ident">kind</span>() <span class="op">==</span> <span class="ident">io</span>::<span class="ident">ErrorKind</span>::<span class="ident">WriteZero</span> {
|
|||
|
|
<span class="self">self</span>.<span class="ident">disconnected</span>();
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
<span class="kw">return</span> <span class="prelude-val">Err</span>(<span class="ident">err</span>);
|
|||
|
|
}
|
|||
|
|
<span class="prelude-val">Ok</span>(<span class="ident">val</span>) <span class="op">=></span> <span class="ident">val</span>,
|
|||
|
|
};
|
|||
|
|
<span class="kw">if</span> <span class="ident">n</span> <span class="op"><</span> <span class="ident">pl</span>.<span class="ident">len</span>() {
|
|||
|
|
<span class="self">self</span>.<span class="ident">buffer</span>.<span class="ident">write</span>(<span class="kw-2">&</span><span class="ident">pl</span>[<span class="ident">n</span>..])<span class="question-mark">?</span>;
|
|||
|
|
<span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="ident">WriterState</span>::<span class="ident">Done</span>);
|
|||
|
|
}
|
|||
|
|
} <span class="kw">else</span> {
|
|||
|
|
<span class="self">self</span>.<span class="ident">buffer</span>.<span class="ident">write</span>(<span class="ident">payload</span>.<span class="ident">as_ref</span>())<span class="question-mark">?</span>;
|
|||
|
|
}
|
|||
|
|
} <span class="kw">else</span> {
|
|||
|
|
<span class="comment">// TODO: add warning, write after EOF</span>
|
|||
|
|
<span class="self">self</span>.<span class="ident">buffer</span>.<span class="ident">write</span>(<span class="ident">payload</span>.<span class="ident">as_ref</span>())<span class="question-mark">?</span>;
|
|||
|
|
}
|
|||
|
|
} <span class="kw">else</span> {
|
|||
|
|
<span class="comment">// could be response to EXCEPT header</span>
|
|||
|
|
<span class="self">self</span>.<span class="ident">buffer</span>.<span class="ident">write</span>(<span class="ident">payload</span>.<span class="ident">as_ref</span>())<span class="question-mark">?</span>;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
<span class="kw">if</span> <span class="self">self</span>.<span class="ident">buffer</span>.<span class="ident">len</span>() <span class="op">></span> <span class="self">self</span>.<span class="ident">buffer_capacity</span> {
|
|||
|
|
<span class="prelude-val">Ok</span>(<span class="ident">WriterState</span>::<span class="ident">Pause</span>)
|
|||
|
|
} <span class="kw">else</span> {
|
|||
|
|
<span class="prelude-val">Ok</span>(<span class="ident">WriterState</span>::<span class="ident">Done</span>)
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
<span class="kw">fn</span> <span class="ident">write_eof</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-></span> <span class="ident">io</span>::<span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">WriterState</span><span class="op">></span> {
|
|||
|
|
<span class="kw">if</span> <span class="op">!</span><span class="self">self</span>.<span class="ident">buffer</span>.<span class="ident">write_eof</span>()<span class="question-mark">?</span> {
|
|||
|
|
<span class="prelude-val">Err</span>(<span class="ident">io</span>::<span class="ident">Error</span>::<span class="ident">new</span>(
|
|||
|
|
<span class="ident">io</span>::<span class="ident">ErrorKind</span>::<span class="ident">Other</span>,
|
|||
|
|
<span class="string">"Last payload item, but eof is not reached"</span>,
|
|||
|
|
))
|
|||
|
|
} <span class="kw">else</span> <span class="kw">if</span> <span class="self">self</span>.<span class="ident">buffer</span>.<span class="ident">len</span>() <span class="op">></span> <span class="ident">MAX_WRITE_BUFFER_SIZE</span> {
|
|||
|
|
<span class="prelude-val">Ok</span>(<span class="ident">WriterState</span>::<span class="ident">Pause</span>)
|
|||
|
|
} <span class="kw">else</span> {
|
|||
|
|
<span class="prelude-val">Ok</span>(<span class="ident">WriterState</span>::<span class="ident">Done</span>)
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
<span class="attribute">#[<span class="ident">inline</span>]</span>
|
|||
|
|
<span class="kw">fn</span> <span class="ident">poll_completed</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">shutdown</span>: <span class="ident">bool</span>) <span class="op">-></span> <span class="ident">Poll</span><span class="op"><</span>(), <span class="ident">io</span>::<span class="ident">Error</span><span class="op">></span> {
|
|||
|
|
<span class="kw">if</span> <span class="op">!</span><span class="self">self</span>.<span class="ident">buffer</span>.<span class="ident">is_empty</span>() {
|
|||
|
|
<span class="kw">let</span> <span class="ident">written</span> <span class="op">=</span> {
|
|||
|
|
<span class="kw">match</span> <span class="self">Self</span>::<span class="ident">write_data</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>.<span class="ident">stream</span>, <span class="self">self</span>.<span class="ident">buffer</span>.<span class="ident">as_ref</span>().<span class="ident">as_ref</span>()) {
|
|||
|
|
<span class="prelude-val">Err</span>(<span class="ident">err</span>) <span class="op">=></span> {
|
|||
|
|
<span class="kw">if</span> <span class="ident">err</span>.<span class="ident">kind</span>() <span class="op">==</span> <span class="ident">io</span>::<span class="ident">ErrorKind</span>::<span class="ident">WriteZero</span> {
|
|||
|
|
<span class="self">self</span>.<span class="ident">disconnected</span>();
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
<span class="kw">return</span> <span class="prelude-val">Err</span>(<span class="ident">err</span>);
|
|||
|
|
}
|
|||
|
|
<span class="prelude-val">Ok</span>(<span class="ident">val</span>) <span class="op">=></span> <span class="ident">val</span>,
|
|||
|
|
}
|
|||
|
|
};
|
|||
|
|
<span class="kw">let</span> <span class="kw">_</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">buffer</span>.<span class="ident">split_to</span>(<span class="ident">written</span>);
|
|||
|
|
<span class="kw">if</span> <span class="ident">shutdown</span> <span class="op">&&</span> <span class="op">!</span><span class="self">self</span>.<span class="ident">buffer</span>.<span class="ident">is_empty</span>()
|
|||
|
|
<span class="op">||</span> (<span class="self">self</span>.<span class="ident">buffer</span>.<span class="ident">len</span>() <span class="op">></span> <span class="self">self</span>.<span class="ident">buffer_capacity</span>)
|
|||
|
|
{
|
|||
|
|
<span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">NotReady</span>);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
<span class="kw">if</span> <span class="ident">shutdown</span> {
|
|||
|
|
<span class="self">self</span>.<span class="ident">stream</span>.<span class="ident">shutdown</span>()
|
|||
|
|
} <span class="kw">else</span> {
|
|||
|
|
<span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">Ready</span>(()))
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
</pre>
|
|||
|
|
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