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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/client/parser.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>parser.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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</pre><pre class="rust ">
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<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">mem</span>;
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<span class="kw">use</span> <span class="ident">bytes</span>::{<span class="ident">Bytes</span>, <span class="ident">BytesMut</span>};
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<span class="kw">use</span> <span class="ident">futures</span>::{<span class="ident">Async</span>, <span class="ident">Poll</span>};
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<span class="kw">use</span> <span class="ident">http</span>::<span class="ident">header</span>::{<span class="self">self</span>, <span class="ident">HeaderName</span>, <span class="ident">HeaderValue</span>};
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<span class="kw">use</span> <span class="ident">http</span>::{<span class="ident">HeaderMap</span>, <span class="ident">StatusCode</span>, <span class="ident">Version</span>};
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<span class="kw">use</span> <span class="ident">httparse</span>;
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<span class="kw">use</span> <span class="ident">error</span>::{<span class="ident">ParseError</span>, <span class="ident">PayloadError</span>};
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<span class="kw">use</span> <span class="ident">server</span>::<span class="ident">h1decoder</span>::{<span class="ident">EncodingDecoder</span>, <span class="ident">HeaderIndex</span>};
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<span class="kw">use</span> <span class="ident">server</span>::<span class="ident">IoStream</span>;
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<span class="kw">use</span> <span class="kw">super</span>::<span class="ident">response</span>::<span class="ident">ClientMessage</span>;
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<span class="kw">use</span> <span class="kw">super</span>::<span class="ident">ClientResponse</span>;
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<span class="kw">const</span> <span class="ident">MAX_BUFFER_SIZE</span>: <span class="ident">usize</span> <span class="op">=</span> <span class="number">131_072</span>;
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<span class="kw">const</span> <span class="ident">MAX_HEADERS</span>: <span class="ident">usize</span> <span class="op">=</span> <span class="number">96</span>;
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<span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Default</span>)]</span>
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<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">HttpResponseParser</span> {
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<span class="ident">decoder</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">EncodingDecoder</span><span class="op">></span>,
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<span class="ident">eof</span>: <span class="ident">bool</span>, <span class="comment">// indicate that we read payload until stream eof</span>
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}
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<span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Debug</span>, <span class="ident">Fail</span>)]</span>
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<span class="kw">pub</span> <span class="kw">enum</span> <span class="ident">HttpResponseParserError</span> {
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<span class="doccomment">/// Server disconnected</span>
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<span class="attribute">#[<span class="ident">fail</span>(<span class="ident">display</span> <span class="op">=</span> <span class="string">"Server disconnected"</span>)]</span>
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<span class="ident">Disconnect</span>,
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<span class="attribute">#[<span class="ident">fail</span>(<span class="ident">display</span> <span class="op">=</span> <span class="string">"{}"</span>, <span class="ident">_0</span>)]</span>
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<span class="ident">Error</span>(<span class="attribute">#[<span class="ident">cause</span>]</span> <span class="ident">ParseError</span>),
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}
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<span class="kw">impl</span> <span class="ident">HttpResponseParser</span> {
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<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">parse</span><span class="op"><</span><span class="ident">T</span><span class="op">></span>(
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<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">io</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">T</span>, <span class="ident">buf</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">BytesMut</span>,
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|||
|
|
) <span class="op">-></span> <span class="ident">Poll</span><span class="op"><</span><span class="ident">ClientResponse</span>, <span class="ident">HttpResponseParserError</span><span class="op">></span>
|
|||
|
|
<span class="kw">where</span>
|
|||
|
|
<span class="ident">T</span>: <span class="ident">IoStream</span>,
|
|||
|
|
{
|
|||
|
|
<span class="kw">loop</span> {
|
|||
|
|
<span class="comment">// Don't call parser until we have data to parse.</span>
|
|||
|
|
<span class="kw">if</span> <span class="op">!</span><span class="ident">buf</span>.<span class="ident">is_empty</span>() {
|
|||
|
|
<span class="kw">match</span> <span class="ident">HttpResponseParser</span>::<span class="ident">parse_message</span>(<span class="ident">buf</span>)
|
|||
|
|
.<span class="ident">map_err</span>(<span class="ident">HttpResponseParserError</span>::<span class="ident">Error</span>)<span class="question-mark">?</span>
|
|||
|
|
{
|
|||
|
|
<span class="ident">Async</span>::<span class="ident">Ready</span>((<span class="ident">msg</span>, <span class="ident">info</span>)) <span class="op">=></span> {
|
|||
|
|
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>((<span class="ident">decoder</span>, <span class="ident">eof</span>)) <span class="op">=</span> <span class="ident">info</span> {
|
|||
|
|
<span class="self">self</span>.<span class="ident">eof</span> <span class="op">=</span> <span class="ident">eof</span>;
|
|||
|
|
<span class="self">self</span>.<span class="ident">decoder</span> <span class="op">=</span> <span class="prelude-val">Some</span>(<span class="ident">decoder</span>);
|
|||
|
|
} <span class="kw">else</span> {
|
|||
|
|
<span class="self">self</span>.<span class="ident">eof</span> <span class="op">=</span> <span class="bool-val">false</span>;
|
|||
|
|
<span class="self">self</span>.<span class="ident">decoder</span> <span class="op">=</span> <span class="prelude-val">None</span>;
|
|||
|
|
}
|
|||
|
|
<span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">Ready</span>(<span class="ident">msg</span>));
|
|||
|
|
}
|
|||
|
|
<span class="ident">Async</span>::<span class="ident">NotReady</span> <span class="op">=></span> {
|
|||
|
|
<span class="kw">if</span> <span class="ident">buf</span>.<span class="ident">capacity</span>() <span class="op">>=</span> <span class="ident">MAX_BUFFER_SIZE</span> {
|
|||
|
|
<span class="kw">return</span> <span class="prelude-val">Err</span>(<span class="ident">HttpResponseParserError</span>::<span class="ident">Error</span>(
|
|||
|
|
<span class="ident">ParseError</span>::<span class="ident">TooLarge</span>,
|
|||
|
|
));
|
|||
|
|
}
|
|||
|
|
<span class="comment">// Parser needs more data.</span>
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
<span class="comment">// Read some more data into the buffer for the parser.</span>
|
|||
|
|
<span class="kw">match</span> <span class="ident">io</span>.<span class="ident">read_available</span>(<span class="ident">buf</span>) {
|
|||
|
|
<span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">Ready</span>((<span class="bool-val">false</span>, <span class="bool-val">true</span>))) <span class="op">=></span> {
|
|||
|
|
<span class="kw">return</span> <span class="prelude-val">Err</span>(<span class="ident">HttpResponseParserError</span>::<span class="ident">Disconnect</span>)
|
|||
|
|
}
|
|||
|
|
<span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">Ready</span>(<span class="kw">_</span>)) <span class="op">=></span> (),
|
|||
|
|
<span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">NotReady</span>) <span class="op">=></span> <span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">NotReady</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">HttpResponseParserError</span>::<span class="ident">Error</span>(<span class="ident">err</span>.<span class="ident">into</span>())),
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">parse_payload</span><span class="op"><</span><span class="ident">T</span><span class="op">></span>(
|
|||
|
|
<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">io</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">T</span>, <span class="ident">buf</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">BytesMut</span>,
|
|||
|
|
) <span class="op">-></span> <span class="ident">Poll</span><span class="op"><</span><span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">Bytes</span><span class="op">></span>, <span class="ident">PayloadError</span><span class="op">></span>
|
|||
|
|
<span class="kw">where</span>
|
|||
|
|
<span class="ident">T</span>: <span class="ident">IoStream</span>,
|
|||
|
|
{
|
|||
|
|
<span class="kw">if</span> <span class="self">self</span>.<span class="ident">decoder</span>.<span class="ident">is_some</span>() {
|
|||
|
|
<span class="kw">loop</span> {
|
|||
|
|
<span class="comment">// read payload</span>
|
|||
|
|
<span class="kw">let</span> (<span class="ident">not_ready</span>, <span class="ident">stream_finished</span>) <span class="op">=</span> <span class="kw">match</span> <span class="ident">io</span>.<span class="ident">read_available</span>(<span class="ident">buf</span>) {
|
|||
|
|
<span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">Ready</span>((<span class="kw">_</span>, <span class="bool-val">true</span>))) <span class="op">=></span> (<span class="bool-val">false</span>, <span class="bool-val">true</span>),
|
|||
|
|
<span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">Ready</span>((<span class="kw">_</span>, <span class="bool-val">false</span>))) <span class="op">=></span> (<span class="bool-val">false</span>, <span class="bool-val">false</span>),
|
|||
|
|
<span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">NotReady</span>) <span class="op">=></span> (<span class="bool-val">true</span>, <span class="bool-val">false</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="ident">into</span>()),
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
<span class="kw">match</span> <span class="self">self</span>.<span class="ident">decoder</span>.<span class="ident">as_mut</span>().<span class="ident">unwrap</span>().<span class="ident">decode</span>(<span class="ident">buf</span>) {
|
|||
|
|
<span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">Ready</span>(<span class="prelude-val">Some</span>(<span class="ident">b</span>))) <span class="op">=></span> <span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">Ready</span>(<span class="prelude-val">Some</span>(<span class="ident">b</span>))),
|
|||
|
|
<span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">Ready</span>(<span class="prelude-val">None</span>)) <span class="op">=></span> {
|
|||
|
|
<span class="self">self</span>.<span class="ident">decoder</span>.<span class="ident">take</span>();
|
|||
|
|
<span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">Ready</span>(<span class="prelude-val">None</span>));
|
|||
|
|
}
|
|||
|
|
<span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">NotReady</span>) <span class="op">=></span> {
|
|||
|
|
<span class="kw">if</span> <span class="ident">not_ready</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">stream_finished</span> {
|
|||
|
|
<span class="comment">// read untile eof?</span>
|
|||
|
|
<span class="kw">if</span> <span class="self">self</span>.<span class="ident">eof</span> {
|
|||
|
|
<span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">Ready</span>(<span class="prelude-val">None</span>));
|
|||
|
|
} <span class="kw">else</span> {
|
|||
|
|
<span class="kw">return</span> <span class="prelude-val">Err</span>(<span class="ident">PayloadError</span>::<span class="ident">Incomplete</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="ident">into</span>()),
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
} <span class="kw">else</span> {
|
|||
|
|
<span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">Ready</span>(<span class="prelude-val">None</span>))
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
<span class="kw">fn</span> <span class="ident">parse_message</span>(
|
|||
|
|
<span class="ident">buf</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">BytesMut</span>,
|
|||
|
|
) <span class="op">-></span> <span class="ident">Poll</span><span class="op"><</span>(<span class="ident">ClientResponse</span>, <span class="prelude-ty">Option</span><span class="op"><</span>(<span class="ident">EncodingDecoder</span>, <span class="ident">bool</span>)<span class="op">></span>), <span class="ident">ParseError</span><span class="op">></span> {
|
|||
|
|
<span class="comment">// Unsafe: we read only this data only after httparse parses headers into.</span>
|
|||
|
|
<span class="comment">// performance bump for pipeline benchmarks.</span>
|
|||
|
|
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">headers</span>: [<span class="ident">HeaderIndex</span>; <span class="ident">MAX_HEADERS</span>] <span class="op">=</span> <span class="kw">unsafe</span> { <span class="ident">mem</span>::<span class="ident">uninitialized</span>() };
|
|||
|
|
|
|||
|
|
<span class="kw">let</span> (<span class="ident">len</span>, <span class="ident">version</span>, <span class="ident">status</span>, <span class="ident">headers_len</span>) <span class="op">=</span> {
|
|||
|
|
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">parsed</span>: [<span class="ident">httparse</span>::<span class="ident">Header</span>; <span class="ident">MAX_HEADERS</span>] <span class="op">=</span>
|
|||
|
|
<span class="kw">unsafe</span> { <span class="ident">mem</span>::<span class="ident">uninitialized</span>() };
|
|||
|
|
|
|||
|
|
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">resp</span> <span class="op">=</span> <span class="ident">httparse</span>::<span class="ident">Response</span>::<span class="ident">new</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">parsed</span>);
|
|||
|
|
<span class="kw">match</span> <span class="ident">resp</span>.<span class="ident">parse</span>(<span class="ident">buf</span>)<span class="question-mark">?</span> {
|
|||
|
|
<span class="ident">httparse</span>::<span class="ident">Status</span>::<span class="ident">Complete</span>(<span class="ident">len</span>) <span class="op">=></span> {
|
|||
|
|
<span class="kw">let</span> <span class="ident">version</span> <span class="op">=</span> <span class="kw">if</span> <span class="ident">resp</span>.<span class="ident">version</span>.<span class="ident">unwrap_or</span>(<span class="number">1</span>) <span class="op">==</span> <span class="number">1</span> {
|
|||
|
|
<span class="ident">Version</span>::<span class="ident">HTTP_11</span>
|
|||
|
|
} <span class="kw">else</span> {
|
|||
|
|
<span class="ident">Version</span>::<span class="ident">HTTP_10</span>
|
|||
|
|
};
|
|||
|
|
<span class="ident">HeaderIndex</span>::<span class="ident">record</span>(<span class="ident">buf</span>, <span class="ident">resp</span>.<span class="ident">headers</span>, <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">headers</span>);
|
|||
|
|
<span class="kw">let</span> <span class="ident">status</span> <span class="op">=</span> <span class="ident">StatusCode</span>::<span class="ident">from_u16</span>(<span class="ident">resp</span>.<span class="ident">code</span>.<span class="ident">unwrap</span>())
|
|||
|
|
.<span class="ident">map_err</span>(<span class="op">|</span><span class="kw">_</span><span class="op">|</span> <span class="ident">ParseError</span>::<span class="ident">Status</span>)<span class="question-mark">?</span>;
|
|||
|
|
|
|||
|
|
(<span class="ident">len</span>, <span class="ident">version</span>, <span class="ident">status</span>, <span class="ident">resp</span>.<span class="ident">headers</span>.<span class="ident">len</span>())
|
|||
|
|
}
|
|||
|
|
<span class="ident">httparse</span>::<span class="ident">Status</span>::<span class="ident">Partial</span> <span class="op">=></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">let</span> <span class="ident">slice</span> <span class="op">=</span> <span class="ident">buf</span>.<span class="ident">split_to</span>(<span class="ident">len</span>).<span class="ident">freeze</span>();
|
|||
|
|
|
|||
|
|
<span class="comment">// convert headers</span>
|
|||
|
|
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">hdrs</span> <span class="op">=</span> <span class="ident">HeaderMap</span>::<span class="ident">new</span>();
|
|||
|
|
<span class="kw">for</span> <span class="ident">idx</span> <span class="kw">in</span> <span class="ident">headers</span>[..<span class="ident">headers_len</span>].<span class="ident">iter</span>() {
|
|||
|
|
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Ok</span>(<span class="ident">name</span>) <span class="op">=</span> <span class="ident">HeaderName</span>::<span class="ident">from_bytes</span>(<span class="kw-2">&</span><span class="ident">slice</span>[<span class="ident">idx</span>.<span class="ident">name</span>.<span class="number">0</span>..<span class="ident">idx</span>.<span class="ident">name</span>.<span class="number">1</span>]) {
|
|||
|
|
<span class="comment">// Unsafe: httparse check header value for valid utf-8</span>
|
|||
|
|
<span class="kw">let</span> <span class="ident">value</span> <span class="op">=</span> <span class="kw">unsafe</span> {
|
|||
|
|
<span class="ident">HeaderValue</span>::<span class="ident">from_shared_unchecked</span>(
|
|||
|
|
<span class="ident">slice</span>.<span class="ident">slice</span>(<span class="ident">idx</span>.<span class="ident">value</span>.<span class="number">0</span>, <span class="ident">idx</span>.<span class="ident">value</span>.<span class="number">1</span>),
|
|||
|
|
)
|
|||
|
|
};
|
|||
|
|
<span class="ident">hdrs</span>.<span class="ident">append</span>(<span class="ident">name</span>, <span class="ident">value</span>);
|
|||
|
|
} <span class="kw">else</span> {
|
|||
|
|
<span class="kw">return</span> <span class="prelude-val">Err</span>(<span class="ident">ParseError</span>::<span class="ident">Header</span>);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
<span class="kw">let</span> <span class="ident">decoder</span> <span class="op">=</span> <span class="kw">if</span> <span class="ident">status</span> <span class="op">==</span> <span class="ident">StatusCode</span>::<span class="ident">SWITCHING_PROTOCOLS</span> {
|
|||
|
|
<span class="prelude-val">Some</span>((<span class="ident">EncodingDecoder</span>::<span class="ident">eof</span>(), <span class="bool-val">true</span>))
|
|||
|
|
} <span class="kw">else</span> <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">len</span>) <span class="op">=</span> <span class="ident">hdrs</span>.<span class="ident">get</span>(<span class="ident">header</span>::<span class="ident">CONTENT_LENGTH</span>) {
|
|||
|
|
<span class="comment">// Content-Length</span>
|
|||
|
|
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Ok</span>(<span class="ident">s</span>) <span class="op">=</span> <span class="ident">len</span>.<span class="ident">to_str</span>() {
|
|||
|
|
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Ok</span>(<span class="ident">len</span>) <span class="op">=</span> <span class="ident">s</span>.<span class="ident">parse</span>::<span class="op"><</span><span class="ident">u64</span><span class="op">></span>() {
|
|||
|
|
<span class="prelude-val">Some</span>((<span class="ident">EncodingDecoder</span>::<span class="ident">length</span>(<span class="ident">len</span>), <span class="bool-val">false</span>))
|
|||
|
|
} <span class="kw">else</span> {
|
|||
|
|
<span class="macro">debug</span><span class="macro">!</span>(<span class="string">"illegal Content-Length: {:?}"</span>, <span class="ident">len</span>);
|
|||
|
|
<span class="kw">return</span> <span class="prelude-val">Err</span>(<span class="ident">ParseError</span>::<span class="ident">Header</span>);
|
|||
|
|
}
|
|||
|
|
} <span class="kw">else</span> {
|
|||
|
|
<span class="macro">debug</span><span class="macro">!</span>(<span class="string">"illegal Content-Length: {:?}"</span>, <span class="ident">len</span>);
|
|||
|
|
<span class="kw">return</span> <span class="prelude-val">Err</span>(<span class="ident">ParseError</span>::<span class="ident">Header</span>);
|
|||
|
|
}
|
|||
|
|
} <span class="kw">else</span> <span class="kw">if</span> <span class="ident">chunked</span>(<span class="kw-2">&</span><span class="ident">hdrs</span>)<span class="question-mark">?</span> {
|
|||
|
|
<span class="comment">// Chunked encoding</span>
|
|||
|
|
<span class="prelude-val">Some</span>((<span class="ident">EncodingDecoder</span>::<span class="ident">chunked</span>(), <span class="bool-val">false</span>))
|
|||
|
|
} <span class="kw">else</span> <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">value</span>) <span class="op">=</span> <span class="ident">hdrs</span>.<span class="ident">get</span>(<span class="ident">header</span>::<span class="ident">CONNECTION</span>) {
|
|||
|
|
<span class="kw">let</span> <span class="ident">close</span> <span class="op">=</span> <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Ok</span>(<span class="ident">s</span>) <span class="op">=</span> <span class="ident">value</span>.<span class="ident">to_str</span>() {
|
|||
|
|
<span class="ident">s</span> <span class="op">==</span> <span class="string">"close"</span>
|
|||
|
|
} <span class="kw">else</span> {
|
|||
|
|
<span class="bool-val">false</span>
|
|||
|
|
};
|
|||
|
|
<span class="kw">if</span> <span class="ident">close</span> {
|
|||
|
|
<span class="prelude-val">Some</span>((<span class="ident">EncodingDecoder</span>::<span class="ident">eof</span>(), <span class="bool-val">true</span>))
|
|||
|
|
} <span class="kw">else</span> {
|
|||
|
|
<span class="prelude-val">None</span>
|
|||
|
|
}
|
|||
|
|
} <span class="kw">else</span> {
|
|||
|
|
<span class="prelude-val">None</span>
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">decoder</span>) <span class="op">=</span> <span class="ident">decoder</span> {
|
|||
|
|
<span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">Ready</span>((
|
|||
|
|
<span class="ident">ClientResponse</span>::<span class="ident">new</span>(<span class="ident">ClientMessage</span> {
|
|||
|
|
<span class="ident">status</span>,
|
|||
|
|
<span class="ident">version</span>,
|
|||
|
|
<span class="ident">headers</span>: <span class="ident">hdrs</span>,
|
|||
|
|
<span class="ident">cookies</span>: <span class="prelude-val">None</span>,
|
|||
|
|
}),
|
|||
|
|
<span class="prelude-val">Some</span>(<span class="ident">decoder</span>),
|
|||
|
|
)))
|
|||
|
|
} <span class="kw">else</span> {
|
|||
|
|
<span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">Ready</span>((
|
|||
|
|
<span class="ident">ClientResponse</span>::<span class="ident">new</span>(<span class="ident">ClientMessage</span> {
|
|||
|
|
<span class="ident">status</span>,
|
|||
|
|
<span class="ident">version</span>,
|
|||
|
|
<span class="ident">headers</span>: <span class="ident">hdrs</span>,
|
|||
|
|
<span class="ident">cookies</span>: <span class="prelude-val">None</span>,
|
|||
|
|
}),
|
|||
|
|
<span class="prelude-val">None</span>,
|
|||
|
|
)))
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
<span class="doccomment">/// Check if request has chunked transfer encoding</span>
|
|||
|
|
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">chunked</span>(<span class="ident">headers</span>: <span class="kw-2">&</span><span class="ident">HeaderMap</span>) <span class="op">-></span> <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">bool</span>, <span class="ident">ParseError</span><span class="op">></span> {
|
|||
|
|
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">encodings</span>) <span class="op">=</span> <span class="ident">headers</span>.<span class="ident">get</span>(<span class="ident">header</span>::<span class="ident">TRANSFER_ENCODING</span>) {
|
|||
|
|
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Ok</span>(<span class="ident">s</span>) <span class="op">=</span> <span class="ident">encodings</span>.<span class="ident">to_str</span>() {
|
|||
|
|
<span class="prelude-val">Ok</span>(<span class="ident">s</span>.<span class="ident">to_lowercase</span>().<span class="ident">contains</span>(<span class="string">"chunked"</span>))
|
|||
|
|
} <span class="kw">else</span> {
|
|||
|
|
<span class="prelude-val">Err</span>(<span class="ident">ParseError</span>::<span class="ident">Header</span>)
|
|||
|
|
}
|
|||
|
|
} <span class="kw">else</span> {
|
|||
|
|
<span class="prelude-val">Ok</span>(<span class="bool-val">false</span>)
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
</pre>
|
|||
|
|
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