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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 of the Rust file `actix-protobuf/src/lib.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>lib.rs - 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="../../light.css" id="themeStyle"><link rel="stylesheet" type="text/css" href="../../dark.css" disabled ><link rel="stylesheet" type="text/css" href="../../ayu.css" disabled ><script id="default-settings" ></script><script src="../../storage.js"></script><script src="../../crates.js"></script><noscript><link rel="stylesheet" href="../../noscript.css"></noscript><link rel="alternate icon" type="image/png" href="../../favicon-16x16.png"><link rel="alternate icon" type="image/png" href="../../favicon-32x32.png"><link rel="icon" type="image/svg+xml" href="../../favicon.svg"><style type="text/css">#crate-search{background-image:url("../../down-arrow.svg");}</style></head><body class="rustdoc source"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu" role="button">☰</div><a href='../../actix_protobuf/index.html'><div class='logo-container rust-logo'><img src='../../rust-logo.png' alt='logo'></div></a></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!" aria-haspopup="menu" title="themes"><img width="18" height="18" alt="Pick another theme!" src="../../brush.svg"></button><div id="theme-choices" role="menu"></div></div><nav class="sub"><form class="search-form"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" disabled autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><button type="button" id="help-button" title="help">?</button><a id="settings-menu" href="../../settings.html" title="settings"><img width="18" height="18" alt="Change settings" src="../../wheel.svg"></a></div></form></nav><section id="main" class="content"><div class="example-wrap"><pre class="line-numbers"><span id="1"> 1</span>
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</pre><pre class="rust"><code><span class="attribute">#![<span class="ident">forbid</span>(<span class="ident">unsafe_code</span>)]</span>
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||
<span class="attribute">#![<span class="ident">deny</span>(<span class="ident">rust_2018_idioms</span>, <span class="ident">nonstandard_style</span>)]</span>
|
||
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||
<span class="kw">use</span> <span class="ident">std</span>::{
|
||
<span class="ident">fmt</span>,
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<span class="ident">future::Future</span>,
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||
<span class="ident">ops</span>::{<span class="ident">Deref</span>, <span class="ident">DerefMut</span>},
|
||
<span class="ident">pin::Pin</span>,
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||
<span class="ident">task</span>::{<span class="self">self</span>, <span class="ident">Poll</span>},
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||
};
|
||
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<span class="kw">use</span> <span class="ident">actix_web</span>::{
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<span class="ident">dev::Payload</span>,
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<span class="ident">error::PayloadError</span>,
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||
<span class="ident">http::header</span>::{<span class="ident">CONTENT_LENGTH</span>, <span class="ident">CONTENT_TYPE</span>},
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<span class="ident">web::BytesMut</span>,
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||
<span class="ident">Error</span>, <span class="ident">FromRequest</span>, <span class="ident">HttpMessage</span>, <span class="ident">HttpRequest</span>, <span class="ident">HttpResponse</span>, <span class="ident">HttpResponseBuilder</span>, <span class="ident">Responder</span>,
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||
<span class="ident">ResponseError</span>,
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||
};
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<span class="kw">use</span> <span class="ident">derive_more::Display</span>;
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<span class="kw">use</span> <span class="ident">futures_util</span>::{
|
||
<span class="ident">future</span>::{<span class="ident">FutureExt</span> <span class="kw">as</span> <span class="kw">_</span>, <span class="ident">LocalBoxFuture</span>},
|
||
<span class="ident">stream::StreamExt</span> <span class="kw">as</span> <span class="kw">_</span>,
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||
};
|
||
<span class="kw">use</span> <span class="ident">prost</span>::{<span class="ident">DecodeError</span> <span class="kw">as</span> <span class="ident">ProtoBufDecodeError</span>, <span class="ident">EncodeError</span> <span class="kw">as</span> <span class="ident">ProtoBufEncodeError</span>, <span class="ident">Message</span>};
|
||
|
||
<span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Debug</span>, <span class="ident">Display</span>)]</span>
|
||
<span class="kw">pub</span> <span class="kw">enum</span> <span class="ident">ProtoBufPayloadError</span> {
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<span class="doccomment">/// Payload size is bigger than 256k</span>
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<span class="attribute">#[<span class="ident">display</span>(<span class="ident">fmt</span> <span class="op">=</span> <span class="string">"Payload size is bigger than 256k"</span>)]</span>
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||
<span class="ident">Overflow</span>,
|
||
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<span class="doccomment">/// Content type error</span>
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||
<span class="attribute">#[<span class="ident">display</span>(<span class="ident">fmt</span> <span class="op">=</span> <span class="string">"Content type error"</span>)]</span>
|
||
<span class="ident">ContentType</span>,
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||
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<span class="doccomment">/// Serialize error</span>
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||
<span class="attribute">#[<span class="ident">display</span>(<span class="ident">fmt</span> <span class="op">=</span> <span class="string">"ProtoBuf serialize error: {}"</span>, <span class="ident">_0</span>)]</span>
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||
<span class="ident">Serialize</span>(<span class="ident">ProtoBufEncodeError</span>),
|
||
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<span class="doccomment">/// Deserialize error</span>
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||
<span class="attribute">#[<span class="ident">display</span>(<span class="ident">fmt</span> <span class="op">=</span> <span class="string">"ProtoBuf deserialize error: {}"</span>, <span class="ident">_0</span>)]</span>
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||
<span class="ident">Deserialize</span>(<span class="ident">ProtoBufDecodeError</span>),
|
||
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<span class="doccomment">/// Payload error</span>
|
||
<span class="attribute">#[<span class="ident">display</span>(<span class="ident">fmt</span> <span class="op">=</span> <span class="string">"Error that occur during reading payload: {}"</span>, <span class="ident">_0</span>)]</span>
|
||
<span class="ident">Payload</span>(<span class="ident">PayloadError</span>),
|
||
}
|
||
|
||
<span class="kw">impl</span> <span class="ident">ResponseError</span> <span class="kw">for</span> <span class="ident">ProtoBufPayloadError</span> {
|
||
<span class="kw">fn</span> <span class="ident">error_response</span>(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="ident">HttpResponse</span> {
|
||
<span class="kw">match</span> <span class="kw-2">*</span><span class="self">self</span> {
|
||
<span class="ident">ProtoBufPayloadError::Overflow</span> => <span class="ident">HttpResponse::PayloadTooLarge</span>().<span class="ident">into</span>(),
|
||
<span class="kw">_</span> => <span class="ident">HttpResponse::BadRequest</span>().<span class="ident">into</span>(),
|
||
}
|
||
}
|
||
}
|
||
|
||
<span class="kw">impl</span> <span class="ident">From</span><span class="op"><</span><span class="ident">PayloadError</span><span class="op">></span> <span class="kw">for</span> <span class="ident">ProtoBufPayloadError</span> {
|
||
<span class="kw">fn</span> <span class="ident">from</span>(<span class="ident">err</span>: <span class="ident">PayloadError</span>) -> <span class="ident">ProtoBufPayloadError</span> {
|
||
<span class="ident">ProtoBufPayloadError::Payload</span>(<span class="ident">err</span>)
|
||
}
|
||
}
|
||
|
||
<span class="kw">impl</span> <span class="ident">From</span><span class="op"><</span><span class="ident">ProtoBufDecodeError</span><span class="op">></span> <span class="kw">for</span> <span class="ident">ProtoBufPayloadError</span> {
|
||
<span class="kw">fn</span> <span class="ident">from</span>(<span class="ident">err</span>: <span class="ident">ProtoBufDecodeError</span>) -> <span class="ident">ProtoBufPayloadError</span> {
|
||
<span class="ident">ProtoBufPayloadError::Deserialize</span>(<span class="ident">err</span>)
|
||
}
|
||
}
|
||
|
||
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">ProtoBuf</span><span class="op"><</span><span class="ident">T</span>: <span class="ident">Message</span><span class="op">></span>(<span class="kw">pub</span> <span class="ident">T</span>);
|
||
|
||
<span class="kw">impl</span><span class="op"><</span><span class="ident">T</span>: <span class="ident">Message</span><span class="op">></span> <span class="ident">Deref</span> <span class="kw">for</span> <span class="ident">ProtoBuf</span><span class="op"><</span><span class="ident">T</span><span class="op">></span> {
|
||
<span class="kw">type</span> <span class="ident">Target</span> <span class="op">=</span> <span class="ident">T</span>;
|
||
|
||
<span class="kw">fn</span> <span class="ident">deref</span>(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span><span class="ident">T</span> {
|
||
<span class="kw-2">&</span><span class="self">self</span>.<span class="number">0</span>
|
||
}
|
||
}
|
||
|
||
<span class="kw">impl</span><span class="op"><</span><span class="ident">T</span>: <span class="ident">Message</span><span class="op">></span> <span class="ident">DerefMut</span> <span class="kw">for</span> <span class="ident">ProtoBuf</span><span class="op"><</span><span class="ident">T</span><span class="op">></span> {
|
||
<span class="kw">fn</span> <span class="ident">deref_mut</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>) -> <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">T</span> {
|
||
<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>.<span class="number">0</span>
|
||
}
|
||
}
|
||
|
||
<span class="kw">impl</span><span class="op"><</span><span class="ident">T</span>: <span class="ident">Message</span><span class="op">></span> <span class="ident">fmt::Debug</span> <span class="kw">for</span> <span class="ident">ProtoBuf</span><span class="op"><</span><span class="ident">T</span><span class="op">></span>
|
||
<span class="kw">where</span>
|
||
<span class="ident">T</span>: <span class="ident">fmt::Debug</span>,
|
||
{
|
||
<span class="kw">fn</span> <span class="ident">fmt</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">f</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">fmt::Formatter</span><span class="op"><</span><span class="lifetime">'_</span><span class="op">></span>) -> <span class="ident">fmt::Result</span> {
|
||
<span class="macro">write!</span>(<span class="ident">f</span>, <span class="string">"ProtoBuf: {:?}"</span>, <span class="self">self</span>.<span class="number">0</span>)
|
||
}
|
||
}
|
||
|
||
<span class="kw">impl</span><span class="op"><</span><span class="ident">T</span>: <span class="ident">Message</span><span class="op">></span> <span class="ident">fmt::Display</span> <span class="kw">for</span> <span class="ident">ProtoBuf</span><span class="op"><</span><span class="ident">T</span><span class="op">></span>
|
||
<span class="kw">where</span>
|
||
<span class="ident">T</span>: <span class="ident">fmt::Display</span>,
|
||
{
|
||
<span class="kw">fn</span> <span class="ident">fmt</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">f</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">fmt::Formatter</span><span class="op"><</span><span class="lifetime">'_</span><span class="op">></span>) -> <span class="ident">fmt::Result</span> {
|
||
<span class="ident">fmt::Display::fmt</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="number">0</span>, <span class="ident">f</span>)
|
||
}
|
||
}
|
||
|
||
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">ProtoBufConfig</span> {
|
||
<span class="ident">limit</span>: <span class="ident">usize</span>,
|
||
}
|
||
|
||
<span class="kw">impl</span> <span class="ident">ProtoBufConfig</span> {
|
||
<span class="doccomment">/// Change max size of payload. By default max size is 256Kb</span>
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">limit</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">limit</span>: <span class="ident">usize</span>) -> <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">Self</span> {
|
||
<span class="self">self</span>.<span class="ident">limit</span> <span class="op">=</span> <span class="ident">limit</span>;
|
||
<span class="self">self</span>
|
||
}
|
||
}
|
||
|
||
<span class="kw">impl</span> <span class="ident">Default</span> <span class="kw">for</span> <span class="ident">ProtoBufConfig</span> {
|
||
<span class="kw">fn</span> <span class="ident">default</span>() -> <span class="self">Self</span> {
|
||
<span class="ident">ProtoBufConfig</span> { <span class="ident">limit</span>: <span class="number">262_144</span> }
|
||
}
|
||
}
|
||
|
||
<span class="kw">impl</span><span class="op"><</span><span class="ident">T</span><span class="op">></span> <span class="ident">FromRequest</span> <span class="kw">for</span> <span class="ident">ProtoBuf</span><span class="op"><</span><span class="ident">T</span><span class="op">></span>
|
||
<span class="kw">where</span>
|
||
<span class="ident">T</span>: <span class="ident">Message</span> <span class="op">+</span> <span class="ident">Default</span> <span class="op">+</span> <span class="lifetime">'static</span>,
|
||
{
|
||
<span class="kw">type</span> <span class="ident">Config</span> <span class="op">=</span> <span class="ident">ProtoBufConfig</span>;
|
||
<span class="kw">type</span> <span class="ident">Error</span> <span class="op">=</span> <span class="ident">Error</span>;
|
||
<span class="kw">type</span> <span class="ident">Future</span> <span class="op">=</span> <span class="ident">LocalBoxFuture</span><span class="op"><</span><span class="lifetime">'static</span>, <span class="prelude-ty">Result</span><span class="op"><</span><span class="self">Self</span>, <span class="ident">Error</span><span class="op">></span><span class="op">></span>;
|
||
|
||
<span class="attribute">#[<span class="ident">inline</span>]</span>
|
||
<span class="kw">fn</span> <span class="ident">from_request</span>(<span class="ident">req</span>: <span class="kw-2">&</span><span class="ident">HttpRequest</span>, <span class="ident">payload</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">Payload</span>) -> <span class="ident"><span class="self">Self</span>::Future</span> {
|
||
<span class="kw">let</span> <span class="ident">limit</span> <span class="op">=</span> <span class="ident">req</span>
|
||
.<span class="ident">app_data</span>::<span class="op"><</span><span class="ident">ProtoBufConfig</span><span class="op">></span>()
|
||
.<span class="ident">map</span>(<span class="op">|</span><span class="ident">c</span><span class="op">|</span> <span class="ident">c</span>.<span class="ident">limit</span>)
|
||
.<span class="ident">unwrap_or</span>(<span class="number">262_144</span>);
|
||
<span class="ident">ProtoBufMessage::new</span>(<span class="ident">req</span>, <span class="ident">payload</span>)
|
||
.<span class="ident">limit</span>(<span class="ident">limit</span>)
|
||
.<span class="ident">map</span>(<span class="kw">move</span> <span class="op">|</span><span class="ident">res</span><span class="op">|</span> <span class="kw">match</span> <span class="ident">res</span> {
|
||
<span class="prelude-val">Err</span>(<span class="ident">e</span>) => <span class="prelude-val">Err</span>(<span class="ident">e</span>.<span class="ident">into</span>()),
|
||
<span class="prelude-val">Ok</span>(<span class="ident">item</span>) => <span class="prelude-val">Ok</span>(<span class="ident">ProtoBuf</span>(<span class="ident">item</span>)),
|
||
})
|
||
.<span class="ident">boxed_local</span>()
|
||
}
|
||
}
|
||
|
||
<span class="kw">impl</span><span class="op"><</span><span class="ident">T</span>: <span class="ident">Message</span> <span class="op">+</span> <span class="ident">Default</span><span class="op">></span> <span class="ident">Responder</span> <span class="kw">for</span> <span class="ident">ProtoBuf</span><span class="op"><</span><span class="ident">T</span><span class="op">></span> {
|
||
<span class="kw">fn</span> <span class="ident">respond_to</span>(<span class="self">self</span>, <span class="kw">_</span>: <span class="kw-2">&</span><span class="ident">HttpRequest</span>) -> <span class="ident">HttpResponse</span> {
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">buf</span> <span class="op">=</span> <span class="ident">Vec::new</span>();
|
||
<span class="kw">match</span> <span class="self">self</span>.<span class="number">0</span>.<span class="ident">encode</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">buf</span>) {
|
||
<span class="prelude-val">Ok</span>(()) => <span class="ident">HttpResponse::Ok</span>()
|
||
.<span class="ident">content_type</span>(<span class="string">"application/protobuf"</span>)
|
||
.<span class="ident">body</span>(<span class="ident">buf</span>),
|
||
<span class="prelude-val">Err</span>(<span class="ident">err</span>) => <span class="ident">HttpResponse::from_error</span>(<span class="ident">Error::from</span>(<span class="ident">ProtoBufPayloadError::Serialize</span>(<span class="ident">err</span>))),
|
||
}
|
||
}
|
||
}
|
||
|
||
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">ProtoBufMessage</span><span class="op"><</span><span class="ident">T</span>: <span class="ident">Message</span> <span class="op">+</span> <span class="ident">Default</span><span class="op">></span> {
|
||
<span class="ident">limit</span>: <span class="ident">usize</span>,
|
||
<span class="ident">length</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">usize</span><span class="op">></span>,
|
||
<span class="ident">stream</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">Payload</span><span class="op">></span>,
|
||
<span class="ident">err</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">ProtoBufPayloadError</span><span class="op">></span>,
|
||
<span class="ident">fut</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">LocalBoxFuture</span><span class="op"><</span><span class="lifetime">'static</span>, <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">T</span>, <span class="ident">ProtoBufPayloadError</span><span class="op">></span><span class="op">></span><span class="op">></span>,
|
||
}
|
||
|
||
<span class="kw">impl</span><span class="op"><</span><span class="ident">T</span>: <span class="ident">Message</span> <span class="op">+</span> <span class="ident">Default</span><span class="op">></span> <span class="ident">ProtoBufMessage</span><span class="op"><</span><span class="ident">T</span><span class="op">></span> {
|
||
<span class="doccomment">/// Create `ProtoBufMessage` for request.</span>
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">new</span>(<span class="ident">req</span>: <span class="kw-2">&</span><span class="ident">HttpRequest</span>, <span class="ident">payload</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">Payload</span>) -> <span class="self">Self</span> {
|
||
<span class="kw">if</span> <span class="ident">req</span>.<span class="ident">content_type</span>() <span class="op">!</span><span class="op">=</span> <span class="string">"application/protobuf"</span> {
|
||
<span class="kw">return</span> <span class="ident">ProtoBufMessage</span> {
|
||
<span class="ident">limit</span>: <span class="number">262_144</span>,
|
||
<span class="ident">length</span>: <span class="prelude-val">None</span>,
|
||
<span class="ident">stream</span>: <span class="prelude-val">None</span>,
|
||
<span class="ident">fut</span>: <span class="prelude-val">None</span>,
|
||
<span class="ident">err</span>: <span class="prelude-val">Some</span>(<span class="ident">ProtoBufPayloadError::ContentType</span>),
|
||
};
|
||
}
|
||
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">len</span> <span class="op">=</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">l</span>) <span class="op">=</span> <span class="ident">req</span>.<span class="ident">headers</span>().<span class="ident">get</span>(<span class="ident">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">l</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">l</span>) <span class="op">=</span> <span class="ident">s</span>.<span class="ident">parse</span>::<span class="op"><</span><span class="ident">usize</span><span class="op">></span>() {
|
||
<span class="ident">len</span> <span class="op">=</span> <span class="prelude-val">Some</span>(<span class="ident">l</span>)
|
||
}
|
||
}
|
||
}
|
||
|
||
<span class="ident">ProtoBufMessage</span> {
|
||
<span class="ident">limit</span>: <span class="number">262_144</span>,
|
||
<span class="ident">length</span>: <span class="ident">len</span>,
|
||
<span class="ident">stream</span>: <span class="prelude-val">Some</span>(<span class="ident">payload</span>.<span class="ident">take</span>()),
|
||
<span class="ident">fut</span>: <span class="prelude-val">None</span>,
|
||
<span class="ident">err</span>: <span class="prelude-val">None</span>,
|
||
}
|
||
}
|
||
|
||
<span class="doccomment">/// Change max size of payload. By default max size is 256Kb</span>
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">limit</span>(<span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">limit</span>: <span class="ident">usize</span>) -> <span class="self">Self</span> {
|
||
<span class="self">self</span>.<span class="ident">limit</span> <span class="op">=</span> <span class="ident">limit</span>;
|
||
<span class="self">self</span>
|
||
}
|
||
}
|
||
|
||
<span class="kw">impl</span><span class="op"><</span><span class="ident">T</span>: <span class="ident">Message</span> <span class="op">+</span> <span class="ident">Default</span> <span class="op">+</span> <span class="lifetime">'static</span><span class="op">></span> <span class="ident">Future</span> <span class="kw">for</span> <span class="ident">ProtoBufMessage</span><span class="op"><</span><span class="ident">T</span><span class="op">></span> {
|
||
<span class="kw">type</span> <span class="ident">Output</span> <span class="op">=</span> <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">T</span>, <span class="ident">ProtoBufPayloadError</span><span class="op">></span>;
|
||
|
||
<span class="kw">fn</span> <span class="ident">poll</span>(<span class="kw-2">mut</span> <span class="self">self</span>: <span class="ident">Pin</span><span class="op"><</span><span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">Self</span><span class="op">></span>, <span class="ident">task</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">task::Context</span><span class="op"><</span><span class="lifetime">'_</span><span class="op">></span>) -> <span class="ident">Poll</span><span class="op"><</span><span class="ident"><span class="self">Self</span>::Output</span><span class="op">></span> {
|
||
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="kw-2">ref</span> <span class="kw-2">mut</span> <span class="ident">fut</span>) <span class="op">=</span> <span class="self">self</span>.<span class="ident">fut</span> {
|
||
<span class="kw">return</span> <span class="ident">Pin::new</span>(<span class="ident">fut</span>).<span class="ident">poll</span>(<span class="ident">task</span>);
|
||
}
|
||
|
||
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">err</span>) <span class="op">=</span> <span class="self">self</span>.<span class="ident">err</span>.<span class="ident">take</span>() {
|
||
<span class="kw">return</span> <span class="ident">Poll::Ready</span>(<span class="prelude-val">Err</span>(<span class="ident">err</span>));
|
||
}
|
||
|
||
<span class="kw">let</span> <span class="ident">limit</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">limit</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="self">self</span>.<span class="ident">length</span>.<span class="ident">take</span>() {
|
||
<span class="kw">if</span> <span class="ident">len</span> <span class="op">></span> <span class="ident">limit</span> {
|
||
<span class="kw">return</span> <span class="ident">Poll::Ready</span>(<span class="prelude-val">Err</span>(<span class="ident">ProtoBufPayloadError::Overflow</span>));
|
||
}
|
||
}
|
||
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">stream</span> <span class="op">=</span> <span class="self">self</span>
|
||
.<span class="ident">stream</span>
|
||
.<span class="ident">take</span>()
|
||
.<span class="ident">expect</span>(<span class="string">"ProtoBufMessage could not be used second time"</span>);
|
||
|
||
<span class="self">self</span>.<span class="ident">fut</span> <span class="op">=</span> <span class="prelude-val">Some</span>(
|
||
<span class="kw">async</span> <span class="kw">move</span> {
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">body</span> <span class="op">=</span> <span class="ident">BytesMut::with_capacity</span>(<span class="number">8192</span>);
|
||
|
||
<span class="kw">while</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">item</span>) <span class="op">=</span> <span class="ident">stream</span>.<span class="ident">next</span>().<span class="kw">await</span> {
|
||
<span class="kw">let</span> <span class="ident">chunk</span> <span class="op">=</span> <span class="ident">item</span><span class="question-mark">?</span>;
|
||
<span class="kw">if</span> (<span class="ident">body</span>.<span class="ident">len</span>() <span class="op">+</span> <span class="ident">chunk</span>.<span class="ident">len</span>()) <span class="op">></span> <span class="ident">limit</span> {
|
||
<span class="kw">return</span> <span class="prelude-val">Err</span>(<span class="ident">ProtoBufPayloadError::Overflow</span>);
|
||
} <span class="kw">else</span> {
|
||
<span class="ident">body</span>.<span class="ident">extend_from_slice</span>(<span class="kw-2">&</span><span class="ident">chunk</span>);
|
||
}
|
||
}
|
||
|
||
<span class="prelude-val">Ok</span>(<span class="op"><</span><span class="ident">T</span><span class="op">></span><span class="ident">::decode</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">body</span>)<span class="question-mark">?</span>)
|
||
}
|
||
.<span class="ident">boxed_local</span>(),
|
||
);
|
||
<span class="self">self</span>.<span class="ident">poll</span>(<span class="ident">task</span>)
|
||
}
|
||
}
|
||
|
||
<span class="kw">pub</span> <span class="kw">trait</span> <span class="ident">ProtoBufResponseBuilder</span> {
|
||
<span class="kw">fn</span> <span class="ident">protobuf</span><span class="op"><</span><span class="ident">T</span>: <span class="ident">Message</span><span class="op">></span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">value</span>: <span class="ident">T</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">HttpResponse</span>, <span class="ident">Error</span><span class="op">></span>;
|
||
}
|
||
|
||
<span class="kw">impl</span> <span class="ident">ProtoBufResponseBuilder</span> <span class="kw">for</span> <span class="ident">HttpResponseBuilder</span> {
|
||
<span class="kw">fn</span> <span class="ident">protobuf</span><span class="op"><</span><span class="ident">T</span>: <span class="ident">Message</span><span class="op">></span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">value</span>: <span class="ident">T</span>) -> <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">HttpResponse</span>, <span class="ident">Error</span><span class="op">></span> {
|
||
<span class="self">self</span>.<span class="ident">insert_header</span>((<span class="ident">CONTENT_TYPE</span>, <span class="string">"application/protobuf"</span>));
|
||
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">body</span> <span class="op">=</span> <span class="ident">Vec::new</span>();
|
||
<span class="ident">value</span>
|
||
.<span class="ident">encode</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">body</span>)
|
||
.<span class="ident">map_err</span>(<span class="ident">ProtoBufPayloadError::Serialize</span>)<span class="question-mark">?</span>;
|
||
<span class="prelude-val">Ok</span>(<span class="self">self</span>.<span class="ident">body</span>(<span class="ident">body</span>))
|
||
}
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">test</span>)]</span>
|
||
<span class="kw">mod</span> <span class="ident">tests</span> {
|
||
<span class="kw">use</span> <span class="kw">super</span>::<span class="kw-2">*</span>;
|
||
<span class="kw">use</span> <span class="ident">actix_web::http::header</span>;
|
||
<span class="kw">use</span> <span class="ident">actix_web::test::TestRequest</span>;
|
||
|
||
<span class="kw">impl</span> <span class="ident">PartialEq</span> <span class="kw">for</span> <span class="ident">ProtoBufPayloadError</span> {
|
||
<span class="kw">fn</span> <span class="ident">eq</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">other</span>: <span class="kw-2">&</span><span class="ident">ProtoBufPayloadError</span>) -> <span class="ident">bool</span> {
|
||
<span class="kw">match</span> <span class="kw-2">*</span><span class="self">self</span> {
|
||
<span class="ident">ProtoBufPayloadError::Overflow</span> => {
|
||
<span class="macro">matches!</span>(<span class="kw-2">*</span><span class="ident">other</span>, <span class="ident">ProtoBufPayloadError::Overflow</span>)
|
||
}
|
||
<span class="ident">ProtoBufPayloadError::ContentType</span> => {
|
||
<span class="macro">matches!</span>(<span class="kw-2">*</span><span class="ident">other</span>, <span class="ident">ProtoBufPayloadError::ContentType</span>)
|
||
}
|
||
<span class="kw">_</span> => <span class="bool-val">false</span>,
|
||
}
|
||
}
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Clone</span>, <span class="ident">PartialEq</span>, <span class="ident">Message</span>)]</span>
|
||
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">MyObject</span> {
|
||
<span class="attribute">#[<span class="ident">prost</span>(<span class="ident">int32</span>, <span class="ident">tag</span> <span class="op">=</span> <span class="string">"1"</span>)]</span>
|
||
<span class="kw">pub</span> <span class="ident">number</span>: <span class="ident">i32</span>,
|
||
<span class="attribute">#[<span class="ident">prost</span>(<span class="ident">string</span>, <span class="ident">tag</span> <span class="op">=</span> <span class="string">"2"</span>)]</span>
|
||
<span class="kw">pub</span> <span class="ident">name</span>: <span class="ident">String</span>,
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">actix_rt::test</span>]</span>
|
||
<span class="kw">async</span> <span class="kw">fn</span> <span class="ident">test_protobuf</span>() {
|
||
<span class="kw">let</span> <span class="ident">protobuf</span> <span class="op">=</span> <span class="ident">ProtoBuf</span>(<span class="ident">MyObject</span> {
|
||
<span class="ident">number</span>: <span class="number">9</span>,
|
||
<span class="ident">name</span>: <span class="string">"test"</span>.<span class="ident">to_owned</span>(),
|
||
});
|
||
<span class="kw">let</span> <span class="ident">req</span> <span class="op">=</span> <span class="ident">TestRequest::default</span>().<span class="ident">to_http_request</span>();
|
||
<span class="kw">let</span> <span class="ident">resp</span> <span class="op">=</span> <span class="ident">protobuf</span>.<span class="ident">respond_to</span>(<span class="kw-2">&</span><span class="ident">req</span>).<span class="kw">await</span>.<span class="ident">unwrap</span>();
|
||
<span class="kw">let</span> <span class="ident">ct</span> <span class="op">=</span> <span class="ident">resp</span>.<span class="ident">headers</span>().<span class="ident">get</span>(<span class="ident">header::CONTENT_TYPE</span>).<span class="ident">unwrap</span>();
|
||
<span class="macro">assert_eq!</span>(<span class="ident">ct</span>, <span class="string">"application/protobuf"</span>);
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">actix_rt::test</span>]</span>
|
||
<span class="kw">async</span> <span class="kw">fn</span> <span class="ident">test_protobuf_message</span>() {
|
||
<span class="kw">let</span> (<span class="ident">req</span>, <span class="kw-2">mut</span> <span class="ident">pl</span>) <span class="op">=</span> <span class="ident">TestRequest::default</span>().<span class="ident">to_http_parts</span>();
|
||
<span class="kw">let</span> <span class="ident">protobuf</span> <span class="op">=</span> <span class="ident">ProtoBufMessage</span>::<span class="op"><</span><span class="ident">MyObject</span><span class="op">></span><span class="ident">::new</span>(<span class="kw-2">&</span><span class="ident">req</span>, <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">pl</span>).<span class="kw">await</span>;
|
||
<span class="macro">assert_eq!</span>(<span class="ident">protobuf</span>.<span class="ident">err</span>().<span class="ident">unwrap</span>(), <span class="ident">ProtoBufPayloadError::ContentType</span>);
|
||
|
||
<span class="kw">let</span> (<span class="ident">req</span>, <span class="kw-2">mut</span> <span class="ident">pl</span>) <span class="op">=</span> <span class="ident">TestRequest::get</span>()
|
||
.<span class="ident">insert_header</span>((<span class="ident">header::CONTENT_TYPE</span>, <span class="string">"application/text"</span>))
|
||
.<span class="ident">to_http_parts</span>();
|
||
<span class="kw">let</span> <span class="ident">protobuf</span> <span class="op">=</span> <span class="ident">ProtoBufMessage</span>::<span class="op"><</span><span class="ident">MyObject</span><span class="op">></span><span class="ident">::new</span>(<span class="kw-2">&</span><span class="ident">req</span>, <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">pl</span>).<span class="kw">await</span>;
|
||
<span class="macro">assert_eq!</span>(<span class="ident">protobuf</span>.<span class="ident">err</span>().<span class="ident">unwrap</span>(), <span class="ident">ProtoBufPayloadError::ContentType</span>);
|
||
|
||
<span class="kw">let</span> (<span class="ident">req</span>, <span class="kw-2">mut</span> <span class="ident">pl</span>) <span class="op">=</span> <span class="ident">TestRequest::get</span>()
|
||
.<span class="ident">insert_header</span>((<span class="ident">header::CONTENT_TYPE</span>, <span class="string">"application/protobuf"</span>))
|
||
.<span class="ident">insert_header</span>((<span class="ident">header::CONTENT_LENGTH</span>, <span class="string">"10000"</span>))
|
||
.<span class="ident">to_http_parts</span>();
|
||
<span class="kw">let</span> <span class="ident">protobuf</span> <span class="op">=</span> <span class="ident">ProtoBufMessage</span>::<span class="op"><</span><span class="ident">MyObject</span><span class="op">></span><span class="ident">::new</span>(<span class="kw-2">&</span><span class="ident">req</span>, <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">pl</span>)
|
||
.<span class="ident">limit</span>(<span class="number">100</span>)
|
||
.<span class="kw">await</span>;
|
||
<span class="macro">assert_eq!</span>(<span class="ident">protobuf</span>.<span class="ident">err</span>().<span class="ident">unwrap</span>(), <span class="ident">ProtoBufPayloadError::Overflow</span>);
|
||
}
|
||
}
|
||
</code></pre></div>
|
||
</section><section id="search" class="content hidden"></section><div id="rustdoc-vars" data-root-path="../../" data-current-crate="actix_protobuf" data-search-index-js="../../search-index.js" data-search-js="../../search.js"></div>
|
||
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