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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/h1decoder.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>h1decoder.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="428">428</span>
|
||
<span id="429">429</span>
|
||
<span id="430">430</span>
|
||
<span id="431">431</span>
|
||
<span id="432">432</span>
|
||
<span id="433">433</span>
|
||
<span id="434">434</span>
|
||
<span id="435">435</span>
|
||
<span id="436">436</span>
|
||
<span id="437">437</span>
|
||
<span id="438">438</span>
|
||
<span id="439">439</span>
|
||
<span id="440">440</span>
|
||
<span id="441">441</span>
|
||
<span id="442">442</span>
|
||
<span id="443">443</span>
|
||
<span id="444">444</span>
|
||
<span id="445">445</span>
|
||
<span id="446">446</span>
|
||
<span id="447">447</span>
|
||
<span id="448">448</span>
|
||
<span id="449">449</span>
|
||
<span id="450">450</span>
|
||
<span id="451">451</span>
|
||
<span id="452">452</span>
|
||
<span id="453">453</span>
|
||
<span id="454">454</span>
|
||
<span id="455">455</span>
|
||
<span id="456">456</span>
|
||
<span id="457">457</span>
|
||
<span id="458">458</span>
|
||
<span id="459">459</span>
|
||
<span id="460">460</span>
|
||
<span id="461">461</span>
|
||
<span id="462">462</span>
|
||
<span id="463">463</span>
|
||
<span id="464">464</span>
|
||
<span id="465">465</span>
|
||
<span id="466">466</span>
|
||
<span id="467">467</span>
|
||
<span id="468">468</span>
|
||
<span id="469">469</span>
|
||
<span id="470">470</span>
|
||
<span id="471">471</span>
|
||
<span id="472">472</span>
|
||
<span id="473">473</span>
|
||
<span id="474">474</span>
|
||
<span id="475">475</span>
|
||
<span id="476">476</span>
|
||
<span id="477">477</span>
|
||
<span id="478">478</span>
|
||
<span id="479">479</span>
|
||
<span id="480">480</span>
|
||
<span id="481">481</span>
|
||
<span id="482">482</span>
|
||
<span id="483">483</span>
|
||
<span id="484">484</span>
|
||
<span id="485">485</span>
|
||
<span id="486">486</span>
|
||
<span id="487">487</span>
|
||
<span id="488">488</span>
|
||
<span id="489">489</span>
|
||
<span id="490">490</span>
|
||
<span id="491">491</span>
|
||
<span id="492">492</span>
|
||
<span id="493">493</span>
|
||
<span id="494">494</span>
|
||
<span id="495">495</span>
|
||
<span id="496">496</span>
|
||
<span id="497">497</span>
|
||
<span id="498">498</span>
|
||
<span id="499">499</span>
|
||
<span id="500">500</span>
|
||
<span id="501">501</span>
|
||
<span id="502">502</span>
|
||
<span id="503">503</span>
|
||
<span id="504">504</span>
|
||
<span id="505">505</span>
|
||
<span id="506">506</span>
|
||
<span id="507">507</span>
|
||
<span id="508">508</span>
|
||
</pre><pre class="rust ">
|
||
<span class="kw">use</span> <span class="ident">std</span>::{<span class="ident">io</span>, <span class="ident">mem</span>};
|
||
|
||
<span class="kw">use</span> <span class="ident">bytes</span>::{<span class="ident">Bytes</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">httparse</span>;
|
||
|
||
<span class="kw">use</span> <span class="kw">super</span>::<span class="ident">message</span>::{<span class="ident">MessageFlags</span>, <span class="ident">Request</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="ident">error</span>::<span class="ident">ParseError</span>;
|
||
<span class="kw">use</span> <span class="ident">http</span>::<span class="ident">header</span>::{<span class="ident">HeaderName</span>, <span class="ident">HeaderValue</span>};
|
||
<span class="kw">use</span> <span class="ident">http</span>::{<span class="ident">header</span>, <span class="ident">HttpTryFrom</span>, <span class="ident">Method</span>, <span class="ident">Uri</span>, <span class="ident">Version</span>};
|
||
<span class="kw">use</span> <span class="ident">uri</span>::<span class="ident">Url</span>;
|
||
|
||
<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>;
|
||
<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>;
|
||
|
||
<span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">struct</span> <span class="ident">H1Decoder</span> {
|
||
<span class="ident">decoder</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">EncodingDecoder</span><span class="op">></span>,
|
||
}
|
||
|
||
<span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">enum</span> <span class="ident">Message</span> {
|
||
<span class="ident">Message</span> { <span class="ident">msg</span>: <span class="ident">Request</span>, <span class="ident">payload</span>: <span class="ident">bool</span> },
|
||
<span class="ident">Chunk</span>(<span class="ident">Bytes</span>),
|
||
<span class="ident">Eof</span>,
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Debug</span>)]</span>
|
||
<span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">enum</span> <span class="ident">DecoderError</span> {
|
||
<span class="ident">Io</span>(<span class="ident">io</span>::<span class="ident">Error</span>),
|
||
<span class="ident">Error</span>(<span class="ident">ParseError</span>),
|
||
}
|
||
|
||
<span class="kw">impl</span> <span class="ident">From</span><span class="op"><</span><span class="ident">io</span>::<span class="ident">Error</span><span class="op">></span> <span class="kw">for</span> <span class="ident">DecoderError</span> {
|
||
<span class="kw">fn</span> <span class="ident">from</span>(<span class="ident">err</span>: <span class="ident">io</span>::<span class="ident">Error</span>) <span class="op">-></span> <span class="ident">DecoderError</span> {
|
||
<span class="ident">DecoderError</span>::<span class="ident">Io</span>(<span class="ident">err</span>)
|
||
}
|
||
}
|
||
|
||
<span class="kw">impl</span> <span class="ident">H1Decoder</span> {
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">new</span>() <span class="op">-></span> <span class="ident">H1Decoder</span> {
|
||
<span class="ident">H1Decoder</span> { <span class="ident">decoder</span>: <span class="prelude-val">None</span> }
|
||
}
|
||
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">decode</span><span class="op"><</span><span class="ident">H</span><span class="op">></span>(
|
||
<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">src</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">BytesMut</span>, <span class="ident">settings</span>: <span class="kw-2">&</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="prelude-ty">Result</span><span class="op"><</span><span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">Message</span><span class="op">></span>, <span class="ident">DecoderError</span><span class="op">></span> {
|
||
<span class="comment">// read payload</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">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">src</span>)<span class="question-mark">?</span> {
|
||
<span class="ident">Async</span>::<span class="ident">Ready</span>(<span class="prelude-val">Some</span>(<span class="ident">bytes</span>)) <span class="op">=></span> <span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="prelude-val">Some</span>(<span class="ident">Message</span>::<span class="ident">Chunk</span>(<span class="ident">bytes</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="prelude-val">Some</span>(<span class="ident">Message</span>::<span class="ident">Eof</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="prelude-val">None</span>),
|
||
}
|
||
}
|
||
|
||
<span class="kw">match</span> <span class="self">self</span>
|
||
.<span class="ident">parse_message</span>(<span class="ident">src</span>, <span class="ident">settings</span>)
|
||
.<span class="ident">map_err</span>(<span class="ident">DecoderError</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">decoder</span>)) <span class="op">=></span> {
|
||
<span class="self">self</span>.<span class="ident">decoder</span> <span class="op">=</span> <span class="ident">decoder</span>;
|
||
<span class="prelude-val">Ok</span>(<span class="prelude-val">Some</span>(<span class="ident">Message</span>::<span class="ident">Message</span> {
|
||
<span class="ident">msg</span>,
|
||
<span class="ident">payload</span>: <span class="self">self</span>.<span class="ident">decoder</span>.<span class="ident">is_some</span>(),
|
||
}))
|
||
}
|
||
<span class="ident">Async</span>::<span class="ident">NotReady</span> <span class="op">=></span> {
|
||
<span class="kw">if</span> <span class="ident">src</span>.<span class="ident">len</span>() <span class="op">>=</span> <span class="ident">MAX_BUFFER_SIZE</span> {
|
||
<span class="macro">error</span><span class="macro">!</span>(<span class="string">"MAX_BUFFER_SIZE unprocessed data reached, closing"</span>);
|
||
<span class="prelude-val">Err</span>(<span class="ident">DecoderError</span>::<span class="ident">Error</span>(<span class="ident">ParseError</span>::<span class="ident">TooLarge</span>))
|
||
} <span class="kw">else</span> {
|
||
<span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>)
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
<span class="kw">fn</span> <span class="ident">parse_message</span><span class="op"><</span><span class="ident">H</span><span class="op">></span>(
|
||
<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">buf</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">BytesMut</span>, <span class="ident">settings</span>: <span class="kw-2">&</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">Poll</span><span class="op"><</span>(<span class="ident">Request</span>, <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">EncodingDecoder</span><span class="op">></span>), <span class="ident">ParseError</span><span class="op">></span> {
|
||
<span class="comment">// Parse http message</span>
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">has_upgrade</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">chunked</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">content_length</span> <span class="op">=</span> <span class="prelude-val">None</span>;
|
||
|
||
<span class="kw">let</span> <span class="ident">msg</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">method</span>, <span class="ident">path</span>, <span class="ident">version</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">req</span> <span class="op">=</span> <span class="ident">httparse</span>::<span class="ident">Request</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">req</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">method</span> <span class="op">=</span> <span class="ident">Method</span>::<span class="ident">from_bytes</span>(<span class="ident">req</span>.<span class="ident">method</span>.<span class="ident">unwrap</span>().<span class="ident">as_bytes</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">Method</span>)<span class="question-mark">?</span>;
|
||
<span class="kw">let</span> <span class="ident">path</span> <span class="op">=</span> <span class="ident">Url</span>::<span class="ident">new</span>(<span class="ident">Uri</span>::<span class="ident">try_from</span>(<span class="ident">req</span>.<span class="ident">path</span>.<span class="ident">unwrap</span>())<span class="question-mark">?</span>);
|
||
<span class="kw">let</span> <span class="ident">version</span> <span class="op">=</span> <span class="kw">if</span> <span class="ident">req</span>.<span class="ident">version</span>.<span class="ident">unwrap</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">req</span>.<span class="ident">headers</span>, <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">headers</span>);
|
||
|
||
(<span class="ident">len</span>, <span class="ident">method</span>, <span class="ident">path</span>, <span class="ident">version</span>, <span class="ident">req</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">msg</span> <span class="op">=</span> <span class="ident">settings</span>.<span class="ident">get_request</span>();
|
||
{
|
||
<span class="kw">let</span> <span class="ident">inner</span> <span class="op">=</span> <span class="ident">msg</span>.<span class="ident">inner_mut</span>();
|
||
<span class="ident">inner</span>
|
||
.<span class="ident">flags</span>
|
||
.<span class="ident">get_mut</span>()
|
||
.<span class="ident">set</span>(<span class="ident">MessageFlags</span>::<span class="ident">KEEPALIVE</span>, <span class="ident">version</span> <span class="op">!=</span> <span class="ident">Version</span>::<span class="ident">HTTP_10</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="kw">match</span> <span class="ident">name</span> {
|
||
<span class="ident">header</span>::<span class="ident">CONTENT_LENGTH</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="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="ident">content_length</span> <span class="op">=</span> <span class="prelude-val">Some</span>(<span class="ident">len</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="comment">// transfer-encoding</span>
|
||
<span class="ident">header</span>::<span class="ident">TRANSFER_ENCODING</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">chunked</span> <span class="op">=</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="kw">return</span> <span class="prelude-val">Err</span>(<span class="ident">ParseError</span>::<span class="ident">Header</span>);
|
||
}
|
||
}
|
||
<span class="comment">// connection keep-alive state</span>
|
||
<span class="ident">header</span>::<span class="ident">CONNECTION</span> <span class="op">=></span> {
|
||
<span class="kw">let</span> <span class="ident">ka</span> <span class="op">=</span> <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Ok</span>(<span class="ident">conn</span>) <span class="op">=</span> <span class="ident">value</span>.<span class="ident">to_str</span>() {
|
||
<span class="kw">if</span> <span class="ident">version</span> <span class="op">==</span> <span class="ident">Version</span>::<span class="ident">HTTP_10</span>
|
||
<span class="op">&&</span> <span class="ident">conn</span>.<span class="ident">contains</span>(<span class="string">"keep-alive"</span>)
|
||
{
|
||
<span class="bool-val">true</span>
|
||
} <span class="kw">else</span> {
|
||
<span class="ident">version</span> <span class="op">==</span> <span class="ident">Version</span>::<span class="ident">HTTP_11</span>
|
||
<span class="op">&&</span> <span class="op">!</span>(<span class="ident">conn</span>.<span class="ident">contains</span>(<span class="string">"close"</span>)
|
||
<span class="op">||</span> <span class="ident">conn</span>.<span class="ident">contains</span>(<span class="string">"upgrade"</span>))
|
||
}
|
||
} <span class="kw">else</span> {
|
||
<span class="bool-val">false</span>
|
||
};
|
||
<span class="ident">inner</span>.<span class="ident">flags</span>.<span class="ident">get_mut</span>().<span class="ident">set</span>(<span class="ident">MessageFlags</span>::<span class="ident">KEEPALIVE</span>, <span class="ident">ka</span>);
|
||
}
|
||
<span class="ident">header</span>::<span class="ident">UPGRADE</span> <span class="op">=></span> {
|
||
<span class="ident">has_upgrade</span> <span class="op">=</span> <span class="bool-val">true</span>;
|
||
}
|
||
<span class="kw">_</span> <span class="op">=></span> (),
|
||
}
|
||
|
||
<span class="ident">inner</span>.<span class="ident">headers</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="ident">inner</span>.<span class="ident">url</span> <span class="op">=</span> <span class="ident">path</span>;
|
||
<span class="ident">inner</span>.<span class="ident">method</span> <span class="op">=</span> <span class="ident">method</span>;
|
||
<span class="ident">inner</span>.<span class="ident">version</span> <span class="op">=</span> <span class="ident">version</span>;
|
||
}
|
||
<span class="ident">msg</span>
|
||
};
|
||
|
||
<span class="comment">// https://tools.ietf.org/html/rfc7230#section-3.3.3</span>
|
||
<span class="kw">let</span> <span class="ident">decoder</span> <span class="op">=</span> <span class="kw">if</span> <span class="ident">chunked</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="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">content_length</span> {
|
||
<span class="comment">// Content-Length</span>
|
||
<span class="prelude-val">Some</span>(<span class="ident">EncodingDecoder</span>::<span class="ident">length</span>(<span class="ident">len</span>))
|
||
} <span class="kw">else</span> <span class="kw">if</span> <span class="ident">has_upgrade</span> <span class="op">||</span> <span class="ident">msg</span>.<span class="ident">inner</span>.<span class="ident">method</span> <span class="op">==</span> <span class="ident">Method</span>::<span class="ident">CONNECT</span> {
|
||
<span class="comment">// upgrade(websocket) or connect</span>
|
||
<span class="prelude-val">Some</span>(<span class="ident">EncodingDecoder</span>::<span class="ident">eof</span>())
|
||
} <span class="kw">else</span> {
|
||
<span class="prelude-val">None</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">decoder</span>)))
|
||
}
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Clone</span>, <span class="ident">Copy</span>)]</span>
|
||
<span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">struct</span> <span class="ident">HeaderIndex</span> {
|
||
<span class="kw">pub</span>(<span class="kw">crate</span>) <span class="ident">name</span>: (<span class="ident">usize</span>, <span class="ident">usize</span>),
|
||
<span class="kw">pub</span>(<span class="kw">crate</span>) <span class="ident">value</span>: (<span class="ident">usize</span>, <span class="ident">usize</span>),
|
||
}
|
||
|
||
<span class="kw">impl</span> <span class="ident">HeaderIndex</span> {
|
||
<span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn</span> <span class="ident">record</span>(
|
||
<span class="ident">bytes</span>: <span class="kw-2">&</span>[<span class="ident">u8</span>], <span class="ident">headers</span>: <span class="kw-2">&</span>[<span class="ident">httparse</span>::<span class="ident">Header</span>], <span class="ident">indices</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> [<span class="ident">HeaderIndex</span>],
|
||
) {
|
||
<span class="kw">let</span> <span class="ident">bytes_ptr</span> <span class="op">=</span> <span class="ident">bytes</span>.<span class="ident">as_ptr</span>() <span class="kw">as</span> <span class="ident">usize</span>;
|
||
<span class="kw">for</span> (<span class="ident">header</span>, <span class="ident">indices</span>) <span class="kw">in</span> <span class="ident">headers</span>.<span class="ident">iter</span>().<span class="ident">zip</span>(<span class="ident">indices</span>.<span class="ident">iter_mut</span>()) {
|
||
<span class="kw">let</span> <span class="ident">name_start</span> <span class="op">=</span> <span class="ident">header</span>.<span class="ident">name</span>.<span class="ident">as_ptr</span>() <span class="kw">as</span> <span class="ident">usize</span> <span class="op">-</span> <span class="ident">bytes_ptr</span>;
|
||
<span class="kw">let</span> <span class="ident">name_end</span> <span class="op">=</span> <span class="ident">name_start</span> <span class="op">+</span> <span class="ident">header</span>.<span class="ident">name</span>.<span class="ident">len</span>();
|
||
<span class="ident">indices</span>.<span class="ident">name</span> <span class="op">=</span> (<span class="ident">name_start</span>, <span class="ident">name_end</span>);
|
||
<span class="kw">let</span> <span class="ident">value_start</span> <span class="op">=</span> <span class="ident">header</span>.<span class="ident">value</span>.<span class="ident">as_ptr</span>() <span class="kw">as</span> <span class="ident">usize</span> <span class="op">-</span> <span class="ident">bytes_ptr</span>;
|
||
<span class="kw">let</span> <span class="ident">value_end</span> <span class="op">=</span> <span class="ident">value_start</span> <span class="op">+</span> <span class="ident">header</span>.<span class="ident">value</span>.<span class="ident">len</span>();
|
||
<span class="ident">indices</span>.<span class="ident">value</span> <span class="op">=</span> (<span class="ident">value_start</span>, <span class="ident">value_end</span>);
|
||
}
|
||
}
|
||
}
|
||
|
||
<span class="doccomment">/// Decoders to handle different Transfer-Encodings.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// If a message body does not include a Transfer-Encoding, it *should*</span>
|
||
<span class="doccomment">/// include a Content-Length header.</span>
|
||
<span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Debug</span>, <span class="ident">Clone</span>, <span class="ident">PartialEq</span>)]</span>
|
||
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">EncodingDecoder</span> {
|
||
<span class="ident">kind</span>: <span class="ident">Kind</span>,
|
||
}
|
||
|
||
<span class="kw">impl</span> <span class="ident">EncodingDecoder</span> {
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">length</span>(<span class="ident">x</span>: <span class="ident">u64</span>) <span class="op">-></span> <span class="ident">EncodingDecoder</span> {
|
||
<span class="ident">EncodingDecoder</span> {
|
||
<span class="ident">kind</span>: <span class="ident">Kind</span>::<span class="ident">Length</span>(<span class="ident">x</span>),
|
||
}
|
||
}
|
||
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">chunked</span>() <span class="op">-></span> <span class="ident">EncodingDecoder</span> {
|
||
<span class="ident">EncodingDecoder</span> {
|
||
<span class="ident">kind</span>: <span class="ident">Kind</span>::<span class="ident">Chunked</span>(<span class="ident">ChunkedState</span>::<span class="ident">Size</span>, <span class="number">0</span>),
|
||
}
|
||
}
|
||
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">eof</span>() <span class="op">-></span> <span class="ident">EncodingDecoder</span> {
|
||
<span class="ident">EncodingDecoder</span> {
|
||
<span class="ident">kind</span>: <span class="ident">Kind</span>::<span class="ident">Eof</span>(<span class="bool-val">false</span>),
|
||
}
|
||
}
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Debug</span>, <span class="ident">Clone</span>, <span class="ident">PartialEq</span>)]</span>
|
||
<span class="kw">enum</span> <span class="ident">Kind</span> {
|
||
<span class="doccomment">/// A Reader used when a Content-Length header is passed with a positive</span>
|
||
<span class="doccomment">/// integer.</span>
|
||
<span class="ident">Length</span>(<span class="ident">u64</span>),
|
||
<span class="doccomment">/// A Reader used when Transfer-Encoding is `chunked`.</span>
|
||
<span class="ident">Chunked</span>(<span class="ident">ChunkedState</span>, <span class="ident">u64</span>),
|
||
<span class="doccomment">/// A Reader used for responses that don't indicate a length or chunked.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// Note: This should only used for `Response`s. It is illegal for a</span>
|
||
<span class="doccomment">/// `Request` to be made with both `Content-Length` and</span>
|
||
<span class="doccomment">/// `Transfer-Encoding: chunked` missing, as explained from the spec:</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// > If a Transfer-Encoding header field is present in a response and</span>
|
||
<span class="doccomment">/// > the chunked transfer coding is not the final encoding, the</span>
|
||
<span class="doccomment">/// > message body length is determined by reading the connection until</span>
|
||
<span class="doccomment">/// > it is closed by the server. If a Transfer-Encoding header field</span>
|
||
<span class="doccomment">/// > is present in a request and the chunked transfer coding is not</span>
|
||
<span class="doccomment">/// > the final encoding, the message body length cannot be determined</span>
|
||
<span class="doccomment">/// > reliably; the server MUST respond with the 400 (Bad Request)</span>
|
||
<span class="doccomment">/// > status code and then close the connection.</span>
|
||
<span class="ident">Eof</span>(<span class="ident">bool</span>),
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Debug</span>, <span class="ident">PartialEq</span>, <span class="ident">Clone</span>)]</span>
|
||
<span class="kw">enum</span> <span class="ident">ChunkedState</span> {
|
||
<span class="ident">Size</span>,
|
||
<span class="ident">SizeLws</span>,
|
||
<span class="ident">Extension</span>,
|
||
<span class="ident">SizeLf</span>,
|
||
<span class="ident">Body</span>,
|
||
<span class="ident">BodyCr</span>,
|
||
<span class="ident">BodyLf</span>,
|
||
<span class="ident">EndCr</span>,
|
||
<span class="ident">EndLf</span>,
|
||
<span class="ident">End</span>,
|
||
}
|
||
|
||
<span class="kw">impl</span> <span class="ident">EncodingDecoder</span> {
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">decode</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">body</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">io</span>::<span class="ident">Error</span><span class="op">></span> {
|
||
<span class="kw">match</span> <span class="self">self</span>.<span class="ident">kind</span> {
|
||
<span class="ident">Kind</span>::<span class="ident">Length</span>(<span class="kw-2">ref</span> <span class="kw-2">mut</span> <span class="ident">remaining</span>) <span class="op">=></span> {
|
||
<span class="kw">if</span> <span class="kw-2">*</span><span class="ident">remaining</span> <span class="op">==</span> <span class="number">0</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">if</span> <span class="ident">body</span>.<span class="ident">is_empty</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">len</span> <span class="op">=</span> <span class="ident">body</span>.<span class="ident">len</span>() <span class="kw">as</span> <span class="ident">u64</span>;
|
||
<span class="kw">let</span> <span class="ident">buf</span>;
|
||
<span class="kw">if</span> <span class="kw-2">*</span><span class="ident">remaining</span> <span class="op">></span> <span class="ident">len</span> {
|
||
<span class="ident">buf</span> <span class="op">=</span> <span class="ident">body</span>.<span class="ident">take</span>().<span class="ident">freeze</span>();
|
||
<span class="kw-2">*</span><span class="ident">remaining</span> <span class="op">-=</span> <span class="ident">len</span>;
|
||
} <span class="kw">else</span> {
|
||
<span class="ident">buf</span> <span class="op">=</span> <span class="ident">body</span>.<span class="ident">split_to</span>(<span class="kw-2">*</span><span class="ident">remaining</span> <span class="kw">as</span> <span class="ident">usize</span>).<span class="ident">freeze</span>();
|
||
<span class="kw-2">*</span><span class="ident">remaining</span> <span class="op">=</span> <span class="number">0</span>;
|
||
}
|
||
<span class="macro">trace</span><span class="macro">!</span>(<span class="string">"Length read: {}"</span>, <span class="ident">buf</span>.<span class="ident">len</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">buf</span>)))
|
||
}
|
||
}
|
||
<span class="ident">Kind</span>::<span class="ident">Chunked</span>(<span class="kw-2">ref</span> <span class="kw-2">mut</span> <span class="ident">state</span>, <span class="kw-2">ref</span> <span class="kw-2">mut</span> <span class="ident">size</span>) <span class="op">=></span> {
|
||
<span class="kw">loop</span> {
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">buf</span> <span class="op">=</span> <span class="prelude-val">None</span>;
|
||
<span class="comment">// advances the chunked state</span>
|
||
<span class="kw-2">*</span><span class="ident">state</span> <span class="op">=</span> <span class="macro">try_ready</span><span class="macro">!</span>(<span class="ident">state</span>.<span class="ident">step</span>(<span class="ident">body</span>, <span class="ident">size</span>, <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">buf</span>));
|
||
<span class="kw">if</span> <span class="kw-2">*</span><span class="ident">state</span> <span class="op">==</span> <span class="ident">ChunkedState</span>::<span class="ident">End</span> {
|
||
<span class="macro">trace</span><span class="macro">!</span>(<span class="string">"End of chunked stream"</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">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">buf</span>) <span class="op">=</span> <span class="ident">buf</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">buf</span>)));
|
||
}
|
||
<span class="kw">if</span> <span class="ident">body</span>.<span class="ident">is_empty</span>() {
|
||
<span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">NotReady</span>);
|
||
}
|
||
}
|
||
}
|
||
<span class="ident">Kind</span>::<span class="ident">Eof</span>(<span class="kw-2">ref</span> <span class="kw-2">mut</span> <span class="ident">is_eof</span>) <span class="op">=></span> {
|
||
<span class="kw">if</span> <span class="kw-2">*</span><span class="ident">is_eof</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">if</span> <span class="op">!</span><span class="ident">body</span>.<span class="ident">is_empty</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">body</span>.<span class="ident">take</span>().<span class="ident">freeze</span>())))
|
||
} <span class="kw">else</span> {
|
||
<span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">NotReady</span>)
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
<span class="macro">macro_rules</span><span class="macro">!</span> <span class="ident">byte</span> (
|
||
(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">rdr</span>:<span class="ident">ident</span>) <span class="op">=></span> ({
|
||
<span class="kw">if</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">rdr</span>.<span class="ident">len</span>() <span class="op">></span> <span class="number">0</span> {
|
||
<span class="kw">let</span> <span class="ident">b</span> <span class="op">=</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">rdr</span>[<span class="number">0</span>];
|
||
<span class="macro-nonterminal">$</span><span class="macro-nonterminal">rdr</span>.<span class="ident">split_to</span>(<span class="number">1</span>);
|
||
<span class="ident">b</span>
|
||
} <span class="kw">else</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">impl</span> <span class="ident">ChunkedState</span> {
|
||
<span class="kw">fn</span> <span class="ident">step</span>(
|
||
<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">body</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">BytesMut</span>, <span class="ident">size</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">u64</span>, <span class="ident">buf</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">Bytes</span><span class="op">></span>,
|
||
) <span class="op">-></span> <span class="ident">Poll</span><span class="op"><</span><span class="ident">ChunkedState</span>, <span class="ident">io</span>::<span class="ident">Error</span><span class="op">></span> {
|
||
<span class="kw">use</span> <span class="self">self</span>::<span class="ident">ChunkedState</span>::<span class="kw-2">*</span>;
|
||
<span class="kw">match</span> <span class="kw-2">*</span><span class="self">self</span> {
|
||
<span class="ident">Size</span> <span class="op">=></span> <span class="ident">ChunkedState</span>::<span class="ident">read_size</span>(<span class="ident">body</span>, <span class="ident">size</span>),
|
||
<span class="ident">SizeLws</span> <span class="op">=></span> <span class="ident">ChunkedState</span>::<span class="ident">read_size_lws</span>(<span class="ident">body</span>),
|
||
<span class="ident">Extension</span> <span class="op">=></span> <span class="ident">ChunkedState</span>::<span class="ident">read_extension</span>(<span class="ident">body</span>),
|
||
<span class="ident">SizeLf</span> <span class="op">=></span> <span class="ident">ChunkedState</span>::<span class="ident">read_size_lf</span>(<span class="ident">body</span>, <span class="ident">size</span>),
|
||
<span class="ident">Body</span> <span class="op">=></span> <span class="ident">ChunkedState</span>::<span class="ident">read_body</span>(<span class="ident">body</span>, <span class="ident">size</span>, <span class="ident">buf</span>),
|
||
<span class="ident">BodyCr</span> <span class="op">=></span> <span class="ident">ChunkedState</span>::<span class="ident">read_body_cr</span>(<span class="ident">body</span>),
|
||
<span class="ident">BodyLf</span> <span class="op">=></span> <span class="ident">ChunkedState</span>::<span class="ident">read_body_lf</span>(<span class="ident">body</span>),
|
||
<span class="ident">EndCr</span> <span class="op">=></span> <span class="ident">ChunkedState</span>::<span class="ident">read_end_cr</span>(<span class="ident">body</span>),
|
||
<span class="ident">EndLf</span> <span class="op">=></span> <span class="ident">ChunkedState</span>::<span class="ident">read_end_lf</span>(<span class="ident">body</span>),
|
||
<span class="ident">End</span> <span class="op">=></span> <span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">Ready</span>(<span class="ident">ChunkedState</span>::<span class="ident">End</span>)),
|
||
}
|
||
}
|
||
<span class="kw">fn</span> <span class="ident">read_size</span>(<span class="ident">rdr</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">BytesMut</span>, <span class="ident">size</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">u64</span>) <span class="op">-></span> <span class="ident">Poll</span><span class="op"><</span><span class="ident">ChunkedState</span>, <span class="ident">io</span>::<span class="ident">Error</span><span class="op">></span> {
|
||
<span class="kw">let</span> <span class="ident">radix</span> <span class="op">=</span> <span class="number">16</span>;
|
||
<span class="kw">match</span> <span class="macro">byte</span><span class="macro">!</span>(<span class="ident">rdr</span>) {
|
||
<span class="ident">b</span> @ <span class="string">b'0'</span>...<span class="string">b'9'</span> <span class="op">=></span> {
|
||
<span class="kw-2">*</span><span class="ident">size</span> <span class="op">*=</span> <span class="ident">radix</span>;
|
||
<span class="kw-2">*</span><span class="ident">size</span> <span class="op">+=</span> <span class="ident">u64</span>::<span class="ident">from</span>(<span class="ident">b</span> <span class="op">-</span> <span class="string">b'0'</span>);
|
||
}
|
||
<span class="ident">b</span> @ <span class="string">b'a'</span>...<span class="string">b'f'</span> <span class="op">=></span> {
|
||
<span class="kw-2">*</span><span class="ident">size</span> <span class="op">*=</span> <span class="ident">radix</span>;
|
||
<span class="kw-2">*</span><span class="ident">size</span> <span class="op">+=</span> <span class="ident">u64</span>::<span class="ident">from</span>(<span class="ident">b</span> <span class="op">+</span> <span class="number">10</span> <span class="op">-</span> <span class="string">b'a'</span>);
|
||
}
|
||
<span class="ident">b</span> @ <span class="string">b'A'</span>...<span class="string">b'F'</span> <span class="op">=></span> {
|
||
<span class="kw-2">*</span><span class="ident">size</span> <span class="op">*=</span> <span class="ident">radix</span>;
|
||
<span class="kw-2">*</span><span class="ident">size</span> <span class="op">+=</span> <span class="ident">u64</span>::<span class="ident">from</span>(<span class="ident">b</span> <span class="op">+</span> <span class="number">10</span> <span class="op">-</span> <span class="string">b'A'</span>);
|
||
}
|
||
<span class="string">b'\t'</span> <span class="op">|</span> <span class="string">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="ident">ChunkedState</span>::<span class="ident">SizeLws</span>)),
|
||
<span class="string">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="ident">ChunkedState</span>::<span class="ident">Extension</span>)),
|
||
<span class="string">b'\r'</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="ident">ChunkedState</span>::<span class="ident">SizeLf</span>)),
|
||
<span class="kw">_</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">InvalidInput</span>,
|
||
<span class="string">"Invalid chunk size line: Invalid Size"</span>,
|
||
));
|
||
}
|
||
}
|
||
<span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">Ready</span>(<span class="ident">ChunkedState</span>::<span class="ident">Size</span>))
|
||
}
|
||
<span class="kw">fn</span> <span class="ident">read_size_lws</span>(<span class="ident">rdr</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">ChunkedState</span>, <span class="ident">io</span>::<span class="ident">Error</span><span class="op">></span> {
|
||
<span class="macro">trace</span><span class="macro">!</span>(<span class="string">"read_size_lws"</span>);
|
||
<span class="kw">match</span> <span class="macro">byte</span><span class="macro">!</span>(<span class="ident">rdr</span>) {
|
||
<span class="comment">// LWS can follow the chunk size, but no more digits can come</span>
|
||
<span class="string">b'\t'</span> <span class="op">|</span> <span class="string">b' '</span> <span class="op">=></span> <span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">Ready</span>(<span class="ident">ChunkedState</span>::<span class="ident">SizeLws</span>)),
|
||
<span class="string">b';'</span> <span class="op">=></span> <span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">Ready</span>(<span class="ident">ChunkedState</span>::<span class="ident">Extension</span>)),
|
||
<span class="string">b'\r'</span> <span class="op">=></span> <span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">Ready</span>(<span class="ident">ChunkedState</span>::<span class="ident">SizeLf</span>)),
|
||
<span class="kw">_</span> <span class="op">=></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">InvalidInput</span>,
|
||
<span class="string">"Invalid chunk size linear white space"</span>,
|
||
)),
|
||
}
|
||
}
|
||
<span class="kw">fn</span> <span class="ident">read_extension</span>(<span class="ident">rdr</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">ChunkedState</span>, <span class="ident">io</span>::<span class="ident">Error</span><span class="op">></span> {
|
||
<span class="kw">match</span> <span class="macro">byte</span><span class="macro">!</span>(<span class="ident">rdr</span>) {
|
||
<span class="string">b'\r'</span> <span class="op">=></span> <span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">Ready</span>(<span class="ident">ChunkedState</span>::<span class="ident">SizeLf</span>)),
|
||
<span class="kw">_</span> <span class="op">=></span> <span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">Ready</span>(<span class="ident">ChunkedState</span>::<span class="ident">Extension</span>)), <span class="comment">// no supported extensions</span>
|
||
}
|
||
}
|
||
<span class="kw">fn</span> <span class="ident">read_size_lf</span>(
|
||
<span class="ident">rdr</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">BytesMut</span>, <span class="ident">size</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">u64</span>,
|
||
) <span class="op">-></span> <span class="ident">Poll</span><span class="op"><</span><span class="ident">ChunkedState</span>, <span class="ident">io</span>::<span class="ident">Error</span><span class="op">></span> {
|
||
<span class="kw">match</span> <span class="macro">byte</span><span class="macro">!</span>(<span class="ident">rdr</span>) {
|
||
<span class="string">b'\n'</span> <span class="kw">if</span> <span class="kw-2">*</span><span class="ident">size</span> <span class="op">></span> <span class="number">0</span> <span class="op">=></span> <span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">Ready</span>(<span class="ident">ChunkedState</span>::<span class="ident">Body</span>)),
|
||
<span class="string">b'\n'</span> <span class="kw">if</span> <span class="kw-2">*</span><span class="ident">size</span> <span class="op">==</span> <span class="number">0</span> <span class="op">=></span> <span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">Ready</span>(<span class="ident">ChunkedState</span>::<span class="ident">EndCr</span>)),
|
||
<span class="kw">_</span> <span class="op">=></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">InvalidInput</span>,
|
||
<span class="string">"Invalid chunk size LF"</span>,
|
||
)),
|
||
}
|
||
}
|
||
|
||
<span class="kw">fn</span> <span class="ident">read_body</span>(
|
||
<span class="ident">rdr</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">BytesMut</span>, <span class="ident">rem</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">u64</span>, <span class="ident">buf</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">Bytes</span><span class="op">></span>,
|
||
) <span class="op">-></span> <span class="ident">Poll</span><span class="op"><</span><span class="ident">ChunkedState</span>, <span class="ident">io</span>::<span class="ident">Error</span><span class="op">></span> {
|
||
<span class="macro">trace</span><span class="macro">!</span>(<span class="string">"Chunked read, remaining={:?}"</span>, <span class="ident">rem</span>);
|
||
|
||
<span class="kw">let</span> <span class="ident">len</span> <span class="op">=</span> <span class="ident">rdr</span>.<span class="ident">len</span>() <span class="kw">as</span> <span class="ident">u64</span>;
|
||
<span class="kw">if</span> <span class="ident">len</span> <span class="op">==</span> <span class="number">0</span> {
|
||
<span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">Ready</span>(<span class="ident">ChunkedState</span>::<span class="ident">Body</span>))
|
||
} <span class="kw">else</span> {
|
||
<span class="kw">let</span> <span class="ident">slice</span>;
|
||
<span class="kw">if</span> <span class="kw-2">*</span><span class="ident">rem</span> <span class="op">></span> <span class="ident">len</span> {
|
||
<span class="ident">slice</span> <span class="op">=</span> <span class="ident">rdr</span>.<span class="ident">take</span>().<span class="ident">freeze</span>();
|
||
<span class="kw-2">*</span><span class="ident">rem</span> <span class="op">-=</span> <span class="ident">len</span>;
|
||
} <span class="kw">else</span> {
|
||
<span class="ident">slice</span> <span class="op">=</span> <span class="ident">rdr</span>.<span class="ident">split_to</span>(<span class="kw-2">*</span><span class="ident">rem</span> <span class="kw">as</span> <span class="ident">usize</span>).<span class="ident">freeze</span>();
|
||
<span class="kw-2">*</span><span class="ident">rem</span> <span class="op">=</span> <span class="number">0</span>;
|
||
}
|
||
<span class="kw-2">*</span><span class="ident">buf</span> <span class="op">=</span> <span class="prelude-val">Some</span>(<span class="ident">slice</span>);
|
||
<span class="kw">if</span> <span class="kw-2">*</span><span class="ident">rem</span> <span class="op">></span> <span class="number">0</span> {
|
||
<span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">Ready</span>(<span class="ident">ChunkedState</span>::<span class="ident">Body</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">ChunkedState</span>::<span class="ident">BodyCr</span>))
|
||
}
|
||
}
|
||
}
|
||
|
||
<span class="kw">fn</span> <span class="ident">read_body_cr</span>(<span class="ident">rdr</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">ChunkedState</span>, <span class="ident">io</span>::<span class="ident">Error</span><span class="op">></span> {
|
||
<span class="kw">match</span> <span class="macro">byte</span><span class="macro">!</span>(<span class="ident">rdr</span>) {
|
||
<span class="string">b'\r'</span> <span class="op">=></span> <span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">Ready</span>(<span class="ident">ChunkedState</span>::<span class="ident">BodyLf</span>)),
|
||
<span class="kw">_</span> <span class="op">=></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">InvalidInput</span>,
|
||
<span class="string">"Invalid chunk body CR"</span>,
|
||
)),
|
||
}
|
||
}
|
||
<span class="kw">fn</span> <span class="ident">read_body_lf</span>(<span class="ident">rdr</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">ChunkedState</span>, <span class="ident">io</span>::<span class="ident">Error</span><span class="op">></span> {
|
||
<span class="kw">match</span> <span class="macro">byte</span><span class="macro">!</span>(<span class="ident">rdr</span>) {
|
||
<span class="string">b'\n'</span> <span class="op">=></span> <span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">Ready</span>(<span class="ident">ChunkedState</span>::<span class="ident">Size</span>)),
|
||
<span class="kw">_</span> <span class="op">=></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">InvalidInput</span>,
|
||
<span class="string">"Invalid chunk body LF"</span>,
|
||
)),
|
||
}
|
||
}
|
||
<span class="kw">fn</span> <span class="ident">read_end_cr</span>(<span class="ident">rdr</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">ChunkedState</span>, <span class="ident">io</span>::<span class="ident">Error</span><span class="op">></span> {
|
||
<span class="kw">match</span> <span class="macro">byte</span><span class="macro">!</span>(<span class="ident">rdr</span>) {
|
||
<span class="string">b'\r'</span> <span class="op">=></span> <span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">Ready</span>(<span class="ident">ChunkedState</span>::<span class="ident">EndLf</span>)),
|
||
<span class="kw">_</span> <span class="op">=></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">InvalidInput</span>,
|
||
<span class="string">"Invalid chunk end CR"</span>,
|
||
)),
|
||
}
|
||
}
|
||
<span class="kw">fn</span> <span class="ident">read_end_lf</span>(<span class="ident">rdr</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">ChunkedState</span>, <span class="ident">io</span>::<span class="ident">Error</span><span class="op">></span> {
|
||
<span class="kw">match</span> <span class="macro">byte</span><span class="macro">!</span>(<span class="ident">rdr</span>) {
|
||
<span class="string">b'\n'</span> <span class="op">=></span> <span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">Ready</span>(<span class="ident">ChunkedState</span>::<span class="ident">End</span>)),
|
||
<span class="kw">_</span> <span class="op">=></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">InvalidInput</span>,
|
||
<span class="string">"Invalid chunk end LF"</span>,
|
||
)),
|
||
}
|
||
}
|
||
}
|
||
</pre>
|
||
</section><section id="search" class="content hidden"></section><section class="footer"></section><aside id="help" class="hidden"><div><h1 class="hidden">Help</h1><div class="shortcuts"><h2>Keyboard Shortcuts</h2><dl><dt><kbd>?</kbd></dt><dd>Show this help dialog</dd><dt><kbd>S</kbd></dt><dd>Focus the search field</dd><dt><kbd>↑</kbd></dt><dd>Move up in search results</dd><dt><kbd>↓</kbd></dt><dd>Move down in search results</dd><dt><kbd>↹</kbd></dt><dd>Switch tab</dd><dt><kbd>⏎</kbd></dt><dd>Go to active search result</dd><dt><kbd>+</kbd></dt><dd>Expand all sections</dd><dt><kbd>-</kbd></dt><dd>Collapse all sections</dd></dl></div><div class="infos"><h2>Search Tricks</h2><p>Prefix searches with a type followed by a colon (e.g. <code>fn:</code>) to restrict the search to a given type.</p><p>Accepted types are: <code>fn</code>, <code>mod</code>, <code>struct</code>, <code>enum</code>, <code>trait</code>, <code>type</code>, <code>macro</code>, and <code>const</code>.</p><p>Search functions by type signature (e.g. <code>vec -> usize</code> or <code>* -> vec</code>)</p><p>Search multiple things at once by splitting your query with comma (e.g. <code>str,u8</code> or <code>String,struct:Vec,test</code>)</p></div></div></aside><script>window.rootPath = "../../../";window.currentCrate = "actix_web";</script><script src="../../../aliases.js"></script><script src="../../../main.js"></script><script defer src="../../../search-index.js"></script></body></html> |