<!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/ws/client.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>client.rs.html -- source</title><link rel="stylesheet" type="text/css" href="../../../normalize.css"><link rel="stylesheet" type="text/css" href="../../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../../dark.css"><link rel="stylesheet" type="text/css" href="../../../light.css" id="themeStyle"><script src="../../../storage.js"></script></head><body class="rustdoc source"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu">☰</div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!"><img src="../../../brush.svg" width="18" alt="Pick another theme!"></button><div id="theme-choices"></div></div><script src="../../../theme.js"></script><nav class="sub"><form class="search-form js-only"><div class="search-container"><input class="search-input" name="search" autocomplete="off" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><a id="settings-menu" href="../../../settings.html"><img src="../../../wheel.svg" width="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><pre class="line-numbers"><span id="1"> 1</span>
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</pre><pre class="rust ">
<span class="doccomment">//! Http client request</span>
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">cell</span>::<span class="ident">RefCell</span>;
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">rc</span>::<span class="ident">Rc</span>;
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">time</span>::<span class="ident">Duration</span>;
<span class="kw">use</span> <span class="ident">std</span>::{<span class="ident">fmt</span>, <span class="ident">io</span>, <span class="ident">str</span>};
<span class="kw">use</span> <span class="ident">base64</span>;
<span class="kw">use</span> <span class="ident">bytes</span>::<span class="ident">Bytes</span>;
<span class="kw">use</span> <span class="ident">cookie</span>::<span class="ident">Cookie</span>;
<span class="kw">use</span> <span class="ident">futures</span>::<span class="ident">sync</span>::<span class="ident">mpsc</span>::{<span class="ident">unbounded</span>, <span class="ident">UnboundedSender</span>};
<span class="kw">use</span> <span class="ident">futures</span>::{<span class="ident">Async</span>, <span class="ident">Future</span>, <span class="ident">Poll</span>, <span class="ident">Stream</span>};
<span class="kw">use</span> <span class="ident">http</span>::<span class="ident">header</span>::{<span class="self">self</span>, <span class="ident">HeaderName</span>, <span class="ident">HeaderValue</span>};
<span class="kw">use</span> <span class="ident">http</span>::{<span class="ident">Error</span> <span class="kw">as</span> <span class="ident">HttpError</span>, <span class="ident">HttpTryFrom</span>, <span class="ident">StatusCode</span>};
<span class="kw">use</span> <span class="ident">rand</span>;
<span class="kw">use</span> <span class="ident">sha1</span>::<span class="ident">Sha1</span>;
<span class="kw">use</span> <span class="ident">actix</span>::{<span class="ident">Addr</span>, <span class="ident">SystemService</span>};
<span class="kw">use</span> <span class="ident">body</span>::{<span class="ident">Binary</span>, <span class="ident">Body</span>};
<span class="kw">use</span> <span class="ident">error</span>::{<span class="ident">Error</span>, <span class="ident">UrlParseError</span>};
<span class="kw">use</span> <span class="ident">header</span>::<span class="ident">IntoHeaderValue</span>;
<span class="kw">use</span> <span class="ident">httpmessage</span>::<span class="ident">HttpMessage</span>;
<span class="kw">use</span> <span class="ident">payload</span>::<span class="ident">PayloadBuffer</span>;
<span class="kw">use</span> <span class="ident">client</span>::{
<span class="ident">ClientConnector</span>, <span class="ident">ClientRequest</span>, <span class="ident">ClientRequestBuilder</span>, <span class="ident">HttpResponseParserError</span>,
<span class="ident">Pipeline</span>, <span class="ident">SendRequest</span>, <span class="ident">SendRequestError</span>,
};
<span class="kw">use</span> <span class="kw">super</span>::<span class="ident">frame</span>::{<span class="ident">Frame</span>, <span class="ident">FramedMessage</span>};
<span class="kw">use</span> <span class="kw">super</span>::<span class="ident">proto</span>::{<span class="ident">CloseReason</span>, <span class="ident">OpCode</span>};
<span class="kw">use</span> <span class="kw">super</span>::{<span class="ident">Message</span>, <span class="ident">ProtocolError</span>, <span class="ident">WsWriter</span>};
<span class="doccomment">/// Websocket client error</span>
<span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Fail</span>, <span class="ident">Debug</span>)]</span>
<span class="kw">pub</span> <span class="kw">enum</span> <span class="ident">ClientError</span> {
<span class="doccomment">/// Invalid url</span>
<span class="attribute">#[<span class="ident">fail</span>(<span class="ident">display</span> <span class="op">=</span> <span class="string">"Invalid url"</span>)]</span>
<span class="ident">InvalidUrl</span>,
<span class="doccomment">/// Invalid response status</span>
<span class="attribute">#[<span class="ident">fail</span>(<span class="ident">display</span> <span class="op">=</span> <span class="string">"Invalid response status"</span>)]</span>
<span class="ident">InvalidResponseStatus</span>(<span class="ident">StatusCode</span>),
<span class="doccomment">/// Invalid upgrade header</span>
<span class="attribute">#[<span class="ident">fail</span>(<span class="ident">display</span> <span class="op">=</span> <span class="string">"Invalid upgrade header"</span>)]</span>
<span class="ident">InvalidUpgradeHeader</span>,
<span class="doccomment">/// Invalid connection header</span>
<span class="attribute">#[<span class="ident">fail</span>(<span class="ident">display</span> <span class="op">=</span> <span class="string">"Invalid connection header"</span>)]</span>
<span class="ident">InvalidConnectionHeader</span>(<span class="ident">HeaderValue</span>),
<span class="doccomment">/// Missing CONNECTION header</span>
<span class="attribute">#[<span class="ident">fail</span>(<span class="ident">display</span> <span class="op">=</span> <span class="string">"Missing CONNECTION header"</span>)]</span>
<span class="ident">MissingConnectionHeader</span>,
<span class="doccomment">/// Missing SEC-WEBSOCKET-ACCEPT header</span>
<span class="attribute">#[<span class="ident">fail</span>(<span class="ident">display</span> <span class="op">=</span> <span class="string">"Missing SEC-WEBSOCKET-ACCEPT header"</span>)]</span>
<span class="ident">MissingWebSocketAcceptHeader</span>,
<span class="doccomment">/// Invalid challenge response</span>
<span class="attribute">#[<span class="ident">fail</span>(<span class="ident">display</span> <span class="op">=</span> <span class="string">"Invalid challenge response"</span>)]</span>
<span class="ident">InvalidChallengeResponse</span>(<span class="ident">String</span>, <span class="ident">HeaderValue</span>),
<span class="doccomment">/// Http parsing error</span>
<span class="attribute">#[<span class="ident">fail</span>(<span class="ident">display</span> <span class="op">=</span> <span class="string">"Http parsing error"</span>)]</span>
<span class="ident">Http</span>(<span class="ident">Error</span>),
<span class="doccomment">/// Url parsing error</span>
<span class="attribute">#[<span class="ident">fail</span>(<span class="ident">display</span> <span class="op">=</span> <span class="string">"Url parsing error"</span>)]</span>
<span class="ident">Url</span>(<span class="ident">UrlParseError</span>),
<span class="doccomment">/// Response parsing error</span>
<span class="attribute">#[<span class="ident">fail</span>(<span class="ident">display</span> <span class="op">=</span> <span class="string">"Response parsing error"</span>)]</span>
<span class="ident">ResponseParseError</span>(<span class="ident">HttpResponseParserError</span>),
<span class="doccomment">/// Send request error</span>
<span class="attribute">#[<span class="ident">fail</span>(<span class="ident">display</span> <span class="op">=</span> <span class="string">"{}"</span>, <span class="ident">_0</span>)]</span>
<span class="ident">SendRequest</span>(<span class="ident">SendRequestError</span>),
<span class="doccomment">/// Protocol error</span>
<span class="attribute">#[<span class="ident">fail</span>(<span class="ident">display</span> <span class="op">=</span> <span class="string">"{}"</span>, <span class="ident">_0</span>)]</span>
<span class="ident">Protocol</span>(<span class="attribute">#[<span class="ident">cause</span>]</span> <span class="ident">ProtocolError</span>),
<span class="doccomment">/// IO Error</span>
<span class="attribute">#[<span class="ident">fail</span>(<span class="ident">display</span> <span class="op">=</span> <span class="string">"{}"</span>, <span class="ident">_0</span>)]</span>
<span class="ident">Io</span>(<span class="ident">io</span>::<span class="ident">Error</span>),
<span class="doccomment">/// "Disconnected"</span>
<span class="attribute">#[<span class="ident">fail</span>(<span class="ident">display</span> <span class="op">=</span> <span class="string">"Disconnected"</span>)]</span>
<span class="ident">Disconnected</span>,
}
<span class="kw">impl</span> <span class="ident">From</span><span class="op"><</span><span class="ident">Error</span><span class="op">></span> <span class="kw">for</span> <span class="ident">ClientError</span> {
<span class="kw">fn</span> <span class="ident">from</span>(<span class="ident">err</span>: <span class="ident">Error</span>) <span class="op">-></span> <span class="ident">ClientError</span> {
<span class="ident">ClientError</span>::<span class="ident">Http</span>(<span class="ident">err</span>)
}
}
<span class="kw">impl</span> <span class="ident">From</span><span class="op"><</span><span class="ident">UrlParseError</span><span class="op">></span> <span class="kw">for</span> <span class="ident">ClientError</span> {
<span class="kw">fn</span> <span class="ident">from</span>(<span class="ident">err</span>: <span class="ident">UrlParseError</span>) <span class="op">-></span> <span class="ident">ClientError</span> {
<span class="ident">ClientError</span>::<span class="ident">Url</span>(<span class="ident">err</span>)
}
}
<span class="kw">impl</span> <span class="ident">From</span><span class="op"><</span><span class="ident">SendRequestError</span><span class="op">></span> <span class="kw">for</span> <span class="ident">ClientError</span> {
<span class="kw">fn</span> <span class="ident">from</span>(<span class="ident">err</span>: <span class="ident">SendRequestError</span>) <span class="op">-></span> <span class="ident">ClientError</span> {
<span class="ident">ClientError</span>::<span class="ident">SendRequest</span>(<span class="ident">err</span>)
}
}
<span class="kw">impl</span> <span class="ident">From</span><span class="op"><</span><span class="ident">ProtocolError</span><span class="op">></span> <span class="kw">for</span> <span class="ident">ClientError</span> {
<span class="kw">fn</span> <span class="ident">from</span>(<span class="ident">err</span>: <span class="ident">ProtocolError</span>) <span class="op">-></span> <span class="ident">ClientError</span> {
<span class="ident">ClientError</span>::<span class="ident">Protocol</span>(<span class="ident">err</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">ClientError</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">ClientError</span> {
<span class="ident">ClientError</span>::<span class="ident">Io</span>(<span class="ident">err</span>)
}
}
<span class="kw">impl</span> <span class="ident">From</span><span class="op"><</span><span class="ident">HttpResponseParserError</span><span class="op">></span> <span class="kw">for</span> <span class="ident">ClientError</span> {
<span class="kw">fn</span> <span class="ident">from</span>(<span class="ident">err</span>: <span class="ident">HttpResponseParserError</span>) <span class="op">-></span> <span class="ident">ClientError</span> {
<span class="ident">ClientError</span>::<span class="ident">ResponseParseError</span>(<span class="ident">err</span>)
}
}
<span class="doccomment">/// `WebSocket` client</span>
<span class="doccomment">///</span>
<span class="doccomment">/// Example of `WebSocket` client usage is available in</span>
<span class="doccomment">/// [websocket example](</span>
<span class="doccomment">/// https://github.com/actix/examples/blob/master/websocket/src/client.rs#L24)</span>
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">Client</span> {
<span class="ident">request</span>: <span class="ident">ClientRequestBuilder</span>,
<span class="ident">err</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">ClientError</span><span class="op">></span>,
<span class="ident">http_err</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">HttpError</span><span class="op">></span>,
<span class="ident">origin</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">HeaderValue</span><span class="op">></span>,
<span class="ident">protocols</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">String</span><span class="op">></span>,
<span class="ident">conn</span>: <span class="ident">Addr</span><span class="op"><</span><span class="ident">ClientConnector</span><span class="op">></span>,
<span class="ident">max_size</span>: <span class="ident">usize</span>,
<span class="ident">no_masking</span>: <span class="ident">bool</span>,
}
<span class="kw">impl</span> <span class="ident">Client</span> {
<span class="doccomment">/// Create new websocket connection</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">new</span><span class="op"><</span><span class="ident">S</span>: <span class="ident">AsRef</span><span class="op"><</span><span class="ident">str</span><span class="op">>></span>(<span class="ident">uri</span>: <span class="ident">S</span>) <span class="op">-></span> <span class="ident">Client</span> {
<span class="ident">Client</span>::<span class="ident">with_connector</span>(<span class="ident">uri</span>, <span class="ident">ClientConnector</span>::<span class="ident">from_registry</span>())
}
<span class="doccomment">/// Create new websocket connection with custom `ClientConnector`</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">with_connector</span><span class="op"><</span><span class="ident">S</span>: <span class="ident">AsRef</span><span class="op"><</span><span class="ident">str</span><span class="op">>></span>(<span class="ident">uri</span>: <span class="ident">S</span>, <span class="ident">conn</span>: <span class="ident">Addr</span><span class="op"><</span><span class="ident">ClientConnector</span><span class="op">></span>) <span class="op">-></span> <span class="ident">Client</span> {
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">cl</span> <span class="op">=</span> <span class="ident">Client</span> {
<span class="ident">request</span>: <span class="ident">ClientRequest</span>::<span class="ident">build</span>(),
<span class="ident">err</span>: <span class="prelude-val">None</span>,
<span class="ident">http_err</span>: <span class="prelude-val">None</span>,
<span class="ident">origin</span>: <span class="prelude-val">None</span>,
<span class="ident">protocols</span>: <span class="prelude-val">None</span>,
<span class="ident">max_size</span>: <span class="number">65_536</span>,
<span class="ident">no_masking</span>: <span class="bool-val">false</span>,
<span class="ident">conn</span>,
};
<span class="ident">cl</span>.<span class="ident">request</span>.<span class="ident">uri</span>(<span class="ident">uri</span>.<span class="ident">as_ref</span>());
<span class="ident">cl</span>
}
<span class="doccomment">/// Set supported websocket protocols</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">protocols</span><span class="op"><</span><span class="ident">U</span>, <span class="ident">V</span><span class="op">></span>(<span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">protos</span>: <span class="ident">U</span>) <span class="op">-></span> <span class="self">Self</span>
<span class="kw">where</span>
<span class="ident">U</span>: <span class="ident">IntoIterator</span><span class="op"><</span><span class="ident">Item</span> <span class="op">=</span> <span class="ident">V</span><span class="op">></span> <span class="op">+</span> <span class="lifetime">'static</span>,
<span class="ident">V</span>: <span class="ident">AsRef</span><span class="op"><</span><span class="ident">str</span><span class="op">></span>,
{
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">protos</span> <span class="op">=</span> <span class="ident">protos</span>
.<span class="ident">into_iter</span>()
.<span class="ident">fold</span>(<span class="ident">String</span>::<span class="ident">new</span>(), <span class="op">|</span><span class="ident">acc</span>, <span class="ident">s</span><span class="op">|</span> <span class="ident">acc</span> <span class="op">+</span> <span class="ident">s</span>.<span class="ident">as_ref</span>() <span class="op">+</span> <span class="string">","</span>);
<span class="ident">protos</span>.<span class="ident">pop</span>();
<span class="self">self</span>.<span class="ident">protocols</span> <span class="op">=</span> <span class="prelude-val">Some</span>(<span class="ident">protos</span>);
<span class="self">self</span>
}
<span class="doccomment">/// Set cookie for handshake request</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">cookie</span>(<span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">cookie</span>: <span class="ident">Cookie</span>) <span class="op">-></span> <span class="self">Self</span> {
<span class="self">self</span>.<span class="ident">request</span>.<span class="ident">cookie</span>(<span class="ident">cookie</span>);
<span class="self">self</span>
}
<span class="doccomment">/// Set request Origin</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">origin</span><span class="op"><</span><span class="ident">V</span><span class="op">></span>(<span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">origin</span>: <span class="ident">V</span>) <span class="op">-></span> <span class="self">Self</span>
<span class="kw">where</span>
<span class="ident">HeaderValue</span>: <span class="ident">HttpTryFrom</span><span class="op"><</span><span class="ident">V</span><span class="op">></span>,
{
<span class="kw">match</span> <span class="ident">HeaderValue</span>::<span class="ident">try_from</span>(<span class="ident">origin</span>) {
<span class="prelude-val">Ok</span>(<span class="ident">value</span>) <span class="op">=></span> <span class="self">self</span>.<span class="ident">origin</span> <span class="op">=</span> <span class="prelude-val">Some</span>(<span class="ident">value</span>),
<span class="prelude-val">Err</span>(<span class="ident">e</span>) <span class="op">=></span> <span class="self">self</span>.<span class="ident">http_err</span> <span class="op">=</span> <span class="prelude-val">Some</span>(<span class="ident">e</span>.<span class="ident">into</span>()),
}
<span class="self">self</span>
}
<span class="doccomment">/// Set max frame size</span>
<span class="doccomment">///</span>
<span class="doccomment">/// By default max size is set to 64kb</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">max_frame_size</span>(<span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">size</span>: <span class="ident">usize</span>) <span class="op">-></span> <span class="self">Self</span> {
<span class="self">self</span>.<span class="ident">max_size</span> <span class="op">=</span> <span class="ident">size</span>;
<span class="self">self</span>
}
<span class="doccomment">/// Set write buffer capacity</span>
<span class="doccomment">///</span>
<span class="doccomment">/// Default buffer capacity is 32kb</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">write_buffer_capacity</span>(<span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">cap</span>: <span class="ident">usize</span>) <span class="op">-></span> <span class="self">Self</span> {
<span class="self">self</span>.<span class="ident">request</span>.<span class="ident">write_buffer_capacity</span>(<span class="ident">cap</span>);
<span class="self">self</span>
}
<span class="doccomment">/// Disable payload masking. By default ws client masks frame payload.</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">no_masking</span>(<span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-></span> <span class="self">Self</span> {
<span class="self">self</span>.<span class="ident">no_masking</span> <span class="op">=</span> <span class="bool-val">true</span>;
<span class="self">self</span>
}
<span class="doccomment">/// Set request header</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">header</span><span class="op"><</span><span class="ident">K</span>, <span class="ident">V</span><span class="op">></span>(<span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">key</span>: <span class="ident">K</span>, <span class="ident">value</span>: <span class="ident">V</span>) <span class="op">-></span> <span class="self">Self</span>
<span class="kw">where</span>
<span class="ident">HeaderName</span>: <span class="ident">HttpTryFrom</span><span class="op"><</span><span class="ident">K</span><span class="op">></span>,
<span class="ident">V</span>: <span class="ident">IntoHeaderValue</span>,
{
<span class="self">self</span>.<span class="ident">request</span>.<span class="ident">header</span>(<span class="ident">key</span>, <span class="ident">value</span>);
<span class="self">self</span>
}
<span class="doccomment">/// Set websocket handshake timeout</span>
<span class="doccomment">///</span>
<span class="doccomment">/// Handshake timeout is a total time for successful handshake.</span>
<span class="doccomment">/// Default value is 5 seconds.</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">timeout</span>(<span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">timeout</span>: <span class="ident">Duration</span>) <span class="op">-></span> <span class="self">Self</span> {
<span class="self">self</span>.<span class="ident">request</span>.<span class="ident">timeout</span>(<span class="ident">timeout</span>);
<span class="self">self</span>
}
<span class="doccomment">/// Connect to websocket server and do ws handshake</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">connect</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-></span> <span class="ident">ClientHandshake</span> {
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">e</span>) <span class="op">=</span> <span class="self">self</span>.<span class="ident">err</span>.<span class="ident">take</span>() {
<span class="ident">ClientHandshake</span>::<span class="ident">error</span>(<span class="ident">e</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">e</span>) <span class="op">=</span> <span class="self">self</span>.<span class="ident">http_err</span>.<span class="ident">take</span>() {
<span class="ident">ClientHandshake</span>::<span class="ident">error</span>(<span class="ident">Error</span>::<span class="ident">from</span>(<span class="ident">e</span>).<span class="ident">into</span>())
} <span class="kw">else</span> {
<span class="comment">// origin</span>
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">origin</span>) <span class="op">=</span> <span class="self">self</span>.<span class="ident">origin</span>.<span class="ident">take</span>() {
<span class="self">self</span>.<span class="ident">request</span>.<span class="ident">set_header</span>(<span class="ident">header</span>::<span class="ident">ORIGIN</span>, <span class="ident">origin</span>);
}
<span class="self">self</span>.<span class="ident">request</span>.<span class="ident">upgrade</span>();
<span class="self">self</span>.<span class="ident">request</span>.<span class="ident">set_header</span>(<span class="ident">header</span>::<span class="ident">UPGRADE</span>, <span class="string">"websocket"</span>);
<span class="self">self</span>.<span class="ident">request</span>.<span class="ident">set_header</span>(<span class="ident">header</span>::<span class="ident">CONNECTION</span>, <span class="string">"upgrade"</span>);
<span class="self">self</span>.<span class="ident">request</span>.<span class="ident">set_header</span>(<span class="ident">header</span>::<span class="ident">SEC_WEBSOCKET_VERSION</span>, <span class="string">"13"</span>);
<span class="self">self</span>.<span class="ident">request</span>.<span class="ident">with_connector</span>(<span class="self">self</span>.<span class="ident">conn</span>.<span class="ident">clone</span>());
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">protocols</span>) <span class="op">=</span> <span class="self">self</span>.<span class="ident">protocols</span>.<span class="ident">take</span>() {
<span class="self">self</span>.<span class="ident">request</span>
.<span class="ident">set_header</span>(<span class="ident">header</span>::<span class="ident">SEC_WEBSOCKET_PROTOCOL</span>, <span class="ident">protocols</span>.<span class="ident">as_str</span>());
}
<span class="kw">let</span> <span class="ident">request</span> <span class="op">=</span> <span class="kw">match</span> <span class="self">self</span>.<span class="ident">request</span>.<span class="ident">finish</span>() {
<span class="prelude-val">Ok</span>(<span class="ident">req</span>) <span class="op">=></span> <span class="ident">req</span>,
<span class="prelude-val">Err</span>(<span class="ident">err</span>) <span class="op">=></span> <span class="kw">return</span> <span class="ident">ClientHandshake</span>::<span class="ident">error</span>(<span class="ident">err</span>.<span class="ident">into</span>()),
};
<span class="kw">if</span> <span class="ident">request</span>.<span class="ident">uri</span>().<span class="ident">host</span>().<span class="ident">is_none</span>() {
<span class="kw">return</span> <span class="ident">ClientHandshake</span>::<span class="ident">error</span>(<span class="ident">ClientError</span>::<span class="ident">InvalidUrl</span>);
}
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">scheme</span>) <span class="op">=</span> <span class="ident">request</span>.<span class="ident">uri</span>().<span class="ident">scheme_part</span>() {
<span class="kw">if</span> <span class="ident">scheme</span> <span class="op">!=</span> <span class="string">"http"</span>
<span class="op">&&</span> <span class="ident">scheme</span> <span class="op">!=</span> <span class="string">"https"</span>
<span class="op">&&</span> <span class="ident">scheme</span> <span class="op">!=</span> <span class="string">"ws"</span>
<span class="op">&&</span> <span class="ident">scheme</span> <span class="op">!=</span> <span class="string">"wss"</span>
{
<span class="kw">return</span> <span class="ident">ClientHandshake</span>::<span class="ident">error</span>(<span class="ident">ClientError</span>::<span class="ident">InvalidUrl</span>);
}
} <span class="kw">else</span> {
<span class="kw">return</span> <span class="ident">ClientHandshake</span>::<span class="ident">error</span>(<span class="ident">ClientError</span>::<span class="ident">InvalidUrl</span>);
}
<span class="comment">// start handshake</span>
<span class="ident">ClientHandshake</span>::<span class="ident">new</span>(<span class="ident">request</span>, <span class="self">self</span>.<span class="ident">max_size</span>, <span class="self">self</span>.<span class="ident">no_masking</span>)
}
}
}
<span class="kw">struct</span> <span class="ident">Inner</span> {
<span class="ident">tx</span>: <span class="ident">UnboundedSender</span><span class="op"><</span><span class="ident">Bytes</span><span class="op">></span>,
<span class="ident">rx</span>: <span class="ident">PayloadBuffer</span><span class="op"><</span><span class="ident">Box</span><span class="op"><</span><span class="ident">Pipeline</span><span class="op">>></span>,
<span class="ident">closed</span>: <span class="ident">bool</span>,
}
<span class="doccomment">/// Future that implementes client websocket handshake process.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// It resolves to a pair of `ClientReader` and `ClientWriter` that</span>
<span class="doccomment">/// can be used for reading and writing websocket frames.</span>
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">ClientHandshake</span> {
<span class="ident">request</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">SendRequest</span><span class="op">></span>,
<span class="ident">tx</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">UnboundedSender</span><span class="op"><</span><span class="ident">Bytes</span><span class="op">>></span>,
<span class="ident">key</span>: <span class="ident">String</span>,
<span class="ident">error</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">ClientError</span><span class="op">></span>,
<span class="ident">max_size</span>: <span class="ident">usize</span>,
<span class="ident">no_masking</span>: <span class="ident">bool</span>,
}
<span class="kw">impl</span> <span class="ident">ClientHandshake</span> {
<span class="kw">fn</span> <span class="ident">new</span>(
<span class="kw-2">mut</span> <span class="ident">request</span>: <span class="ident">ClientRequest</span>, <span class="ident">max_size</span>: <span class="ident">usize</span>, <span class="ident">no_masking</span>: <span class="ident">bool</span>,
) <span class="op">-></span> <span class="ident">ClientHandshake</span> {
<span class="comment">// Generate a random key for the `Sec-WebSocket-Key` header.</span>
<span class="comment">// a base64-encoded (see Section 4 of [RFC4648]) value that,</span>
<span class="comment">// when decoded, is 16 bytes in length (RFC 6455)</span>
<span class="kw">let</span> <span class="ident">sec_key</span>: [<span class="ident">u8</span>; <span class="number">16</span>] <span class="op">=</span> <span class="ident">rand</span>::<span class="ident">random</span>();
<span class="kw">let</span> <span class="ident">key</span> <span class="op">=</span> <span class="ident">base64</span>::<span class="ident">encode</span>(<span class="kw-2">&</span><span class="ident">sec_key</span>);
<span class="ident">request</span>.<span class="ident">headers_mut</span>().<span class="ident">insert</span>(
<span class="ident">header</span>::<span class="ident">SEC_WEBSOCKET_KEY</span>,
<span class="ident">HeaderValue</span>::<span class="ident">try_from</span>(<span class="ident">key</span>.<span class="ident">as_str</span>()).<span class="ident">unwrap</span>(),
);
<span class="kw">let</span> (<span class="ident">tx</span>, <span class="ident">rx</span>) <span class="op">=</span> <span class="ident">unbounded</span>();
<span class="ident">request</span>.<span class="ident">set_body</span>(<span class="ident">Body</span>::<span class="ident">Streaming</span>(<span class="ident">Box</span>::<span class="ident">new</span>(<span class="ident">rx</span>.<span class="ident">map_err</span>(<span class="op">|</span><span class="kw">_</span><span class="op">|</span> {
<span class="ident">io</span>::<span class="ident">Error</span>::<span class="ident">new</span>(<span class="ident">io</span>::<span class="ident">ErrorKind</span>::<span class="ident">Other</span>, <span class="string">"disconnected"</span>).<span class="ident">into</span>()
}))));
<span class="ident">ClientHandshake</span> {
<span class="ident">key</span>,
<span class="ident">max_size</span>,
<span class="ident">no_masking</span>,
<span class="ident">request</span>: <span class="prelude-val">Some</span>(<span class="ident">request</span>.<span class="ident">send</span>()),
<span class="ident">tx</span>: <span class="prelude-val">Some</span>(<span class="ident">tx</span>),
<span class="ident">error</span>: <span class="prelude-val">None</span>,
}
}
<span class="kw">fn</span> <span class="ident">error</span>(<span class="ident">err</span>: <span class="ident">ClientError</span>) <span class="op">-></span> <span class="ident">ClientHandshake</span> {
<span class="ident">ClientHandshake</span> {
<span class="ident">key</span>: <span class="ident">String</span>::<span class="ident">new</span>(),
<span class="ident">request</span>: <span class="prelude-val">None</span>,
<span class="ident">tx</span>: <span class="prelude-val">None</span>,
<span class="ident">error</span>: <span class="prelude-val">Some</span>(<span class="ident">err</span>),
<span class="ident">max_size</span>: <span class="number">0</span>,
<span class="ident">no_masking</span>: <span class="bool-val">false</span>,
}
}
<span class="doccomment">/// Set handshake timeout</span>
<span class="doccomment">///</span>
<span class="doccomment">/// Handshake timeout is a total time before handshake should be completed.</span>
<span class="doccomment">/// Default value is 5 seconds.</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">timeout</span>(<span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">timeout</span>: <span class="ident">Duration</span>) <span class="op">-></span> <span class="self">Self</span> {
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">request</span>) <span class="op">=</span> <span class="self">self</span>.<span class="ident">request</span>.<span class="ident">take</span>() {
<span class="self">self</span>.<span class="ident">request</span> <span class="op">=</span> <span class="prelude-val">Some</span>(<span class="ident">request</span>.<span class="ident">timeout</span>(<span class="ident">timeout</span>));
}
<span class="self">self</span>
}
<span class="doccomment">/// Set connection timeout</span>
<span class="doccomment">///</span>
<span class="doccomment">/// Connection timeout includes resolving hostname and actual connection to</span>
<span class="doccomment">/// the host.</span>
<span class="doccomment">/// Default value is 1 second.</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">conn_timeout</span>(<span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">timeout</span>: <span class="ident">Duration</span>) <span class="op">-></span> <span class="self">Self</span> {
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">request</span>) <span class="op">=</span> <span class="self">self</span>.<span class="ident">request</span>.<span class="ident">take</span>() {
<span class="self">self</span>.<span class="ident">request</span> <span class="op">=</span> <span class="prelude-val">Some</span>(<span class="ident">request</span>.<span class="ident">conn_timeout</span>(<span class="ident">timeout</span>));
}
<span class="self">self</span>
}
}
<span class="kw">impl</span> <span class="ident">Future</span> <span class="kw">for</span> <span class="ident">ClientHandshake</span> {
<span class="kw">type</span> <span class="ident">Item</span> <span class="op">=</span> (<span class="ident">ClientReader</span>, <span class="ident">ClientWriter</span>);
<span class="kw">type</span> <span class="ident">Error</span> <span class="op">=</span> <span class="ident">ClientError</span>;
<span class="kw">fn</span> <span class="ident">poll</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-></span> <span class="ident">Poll</span><span class="op"><</span><span class="self">Self</span>::<span class="ident">Item</span>, <span class="self">Self</span>::<span class="ident">Error</span><span class="op">></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">error</span>.<span class="ident">take</span>() {
<span class="kw">return</span> <span class="prelude-val">Err</span>(<span class="ident">err</span>);
}
<span class="kw">let</span> <span class="ident">resp</span> <span class="op">=</span> <span class="kw">match</span> <span class="self">self</span>.<span class="ident">request</span>.<span class="ident">as_mut</span>().<span class="ident">unwrap</span>().<span class="ident">poll</span>()<span class="question-mark">?</span> {
<span class="ident">Async</span>::<span class="ident">Ready</span>(<span class="ident">response</span>) <span class="op">=></span> {
<span class="self">self</span>.<span class="ident">request</span>.<span class="ident">take</span>();
<span class="ident">response</span>
}
<span class="ident">Async</span>::<span class="ident">NotReady</span> <span class="op">=></span> <span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">NotReady</span>),
};
<span class="comment">// verify response</span>
<span class="kw">if</span> <span class="ident">resp</span>.<span class="ident">status</span>() <span class="op">!=</span> <span class="ident">StatusCode</span>::<span class="ident">SWITCHING_PROTOCOLS</span> {
<span class="kw">return</span> <span class="prelude-val">Err</span>(<span class="ident">ClientError</span>::<span class="ident">InvalidResponseStatus</span>(<span class="ident">resp</span>.<span class="ident">status</span>()));
}
<span class="comment">// Check for "UPGRADE" to websocket header</span>
<span class="kw">let</span> <span class="ident">has_hdr</span> <span class="op">=</span> <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">hdr</span>) <span class="op">=</span> <span class="ident">resp</span>.<span class="ident">headers</span>().<span class="ident">get</span>(<span class="ident">header</span>::<span class="ident">UPGRADE</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">hdr</span>.<span class="ident">to_str</span>() {
<span class="ident">s</span>.<span class="ident">to_lowercase</span>().<span class="ident">contains</span>(<span class="string">"websocket"</span>)
} <span class="kw">else</span> {
<span class="bool-val">false</span>
}
} <span class="kw">else</span> {
<span class="bool-val">false</span>
};
<span class="kw">if</span> <span class="op">!</span><span class="ident">has_hdr</span> {
<span class="macro">trace</span><span class="macro">!</span>(<span class="string">"Invalid upgrade header"</span>);
<span class="kw">return</span> <span class="prelude-val">Err</span>(<span class="ident">ClientError</span>::<span class="ident">InvalidUpgradeHeader</span>);
}
<span class="comment">// Check for "CONNECTION" header</span>
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">conn</span>) <span class="op">=</span> <span class="ident">resp</span>.<span class="ident">headers</span>().<span class="ident">get</span>(<span class="ident">header</span>::<span class="ident">CONNECTION</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">conn</span>.<span class="ident">to_str</span>() {
<span class="kw">if</span> <span class="op">!</span><span class="ident">s</span>.<span class="ident">to_lowercase</span>().<span class="ident">contains</span>(<span class="string">"upgrade"</span>) {
<span class="macro">trace</span><span class="macro">!</span>(<span class="string">"Invalid connection header: {}"</span>, <span class="ident">s</span>);
<span class="kw">return</span> <span class="prelude-val">Err</span>(<span class="ident">ClientError</span>::<span class="ident">InvalidConnectionHeader</span>(<span class="ident">conn</span>.<span class="ident">clone</span>()));
}
} <span class="kw">else</span> {
<span class="macro">trace</span><span class="macro">!</span>(<span class="string">"Invalid connection header: {:?}"</span>, <span class="ident">conn</span>);
<span class="kw">return</span> <span class="prelude-val">Err</span>(<span class="ident">ClientError</span>::<span class="ident">InvalidConnectionHeader</span>(<span class="ident">conn</span>.<span class="ident">clone</span>()));
}
} <span class="kw">else</span> {
<span class="macro">trace</span><span class="macro">!</span>(<span class="string">"Missing connection header"</span>);
<span class="kw">return</span> <span class="prelude-val">Err</span>(<span class="ident">ClientError</span>::<span class="ident">MissingConnectionHeader</span>);
}
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">key</span>) <span class="op">=</span> <span class="ident">resp</span>.<span class="ident">headers</span>().<span class="ident">get</span>(<span class="ident">header</span>::<span class="ident">SEC_WEBSOCKET_ACCEPT</span>) {
<span class="comment">// field is constructed by concatenating /key/</span>
<span class="comment">// with the string "258EAFA5-E914-47DA-95CA-C5AB0DC85B11" (RFC 6455)</span>
<span class="kw">const</span> <span class="ident">WS_GUID</span>: <span class="kw-2">&</span>[<span class="ident">u8</span>] <span class="op">=</span> <span class="string">b"258EAFA5-E914-47DA-95CA-C5AB0DC85B11"</span>;
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">sha1</span> <span class="op">=</span> <span class="ident">Sha1</span>::<span class="ident">new</span>();
<span class="ident">sha1</span>.<span class="ident">update</span>(<span class="self">self</span>.<span class="ident">key</span>.<span class="ident">as_ref</span>());
<span class="ident">sha1</span>.<span class="ident">update</span>(<span class="ident">WS_GUID</span>);
<span class="kw">let</span> <span class="ident">encoded</span> <span class="op">=</span> <span class="ident">base64</span>::<span class="ident">encode</span>(<span class="kw-2">&</span><span class="ident">sha1</span>.<span class="ident">digest</span>().<span class="ident">bytes</span>());
<span class="kw">if</span> <span class="ident">key</span>.<span class="ident">as_bytes</span>() <span class="op">!=</span> <span class="ident">encoded</span>.<span class="ident">as_bytes</span>() {
<span class="macro">trace</span><span class="macro">!</span>(
<span class="string">"Invalid challenge response: expected: {} received: {:?}"</span>,
<span class="ident">encoded</span>,
<span class="ident">key</span>
);
<span class="kw">return</span> <span class="prelude-val">Err</span>(<span class="ident">ClientError</span>::<span class="ident">InvalidChallengeResponse</span>(<span class="ident">encoded</span>, <span class="ident">key</span>.<span class="ident">clone</span>()));
}
} <span class="kw">else</span> {
<span class="macro">trace</span><span class="macro">!</span>(<span class="string">"Missing SEC-WEBSOCKET-ACCEPT header"</span>);
<span class="kw">return</span> <span class="prelude-val">Err</span>(<span class="ident">ClientError</span>::<span class="ident">MissingWebSocketAcceptHeader</span>);
};
<span class="kw">let</span> <span class="ident">inner</span> <span class="op">=</span> <span class="ident">Inner</span> {
<span class="ident">tx</span>: <span class="self">self</span>.<span class="ident">tx</span>.<span class="ident">take</span>().<span class="ident">unwrap</span>(),
<span class="ident">rx</span>: <span class="ident">PayloadBuffer</span>::<span class="ident">new</span>(<span class="ident">resp</span>.<span class="ident">payload</span>()),
<span class="ident">closed</span>: <span class="bool-val">false</span>,
};
<span class="kw">let</span> <span class="ident">inner</span> <span class="op">=</span> <span class="ident">Rc</span>::<span class="ident">new</span>(<span class="ident">RefCell</span>::<span class="ident">new</span>(<span class="ident">inner</span>));
<span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">Ready</span>((
<span class="ident">ClientReader</span> {
<span class="ident">inner</span>: <span class="ident">Rc</span>::<span class="ident">clone</span>(<span class="kw-2">&</span><span class="ident">inner</span>),
<span class="ident">max_size</span>: <span class="self">self</span>.<span class="ident">max_size</span>,
<span class="ident">no_masking</span>: <span class="self">self</span>.<span class="ident">no_masking</span>,
},
<span class="ident">ClientWriter</span> { <span class="ident">inner</span> },
)))
}
}
<span class="doccomment">/// Websocket reader client</span>
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">ClientReader</span> {
<span class="ident">inner</span>: <span class="ident">Rc</span><span class="op"><</span><span class="ident">RefCell</span><span class="op"><</span><span class="ident">Inner</span><span class="op">>></span>,
<span class="ident">max_size</span>: <span class="ident">usize</span>,
<span class="ident">no_masking</span>: <span class="ident">bool</span>,
}
<span class="kw">impl</span> <span class="ident">fmt</span>::<span class="ident">Debug</span> <span class="kw">for</span> <span class="ident">ClientReader</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</span>::<span class="ident">Formatter</span>) <span class="op">-></span> <span class="ident">fmt</span>::<span class="prelude-ty">Result</span> {
<span class="macro">write</span><span class="macro">!</span>(<span class="ident">f</span>, <span class="string">"ws::ClientReader()"</span>)
}
}
<span class="kw">impl</span> <span class="ident">Stream</span> <span class="kw">for</span> <span class="ident">ClientReader</span> {
<span class="kw">type</span> <span class="ident">Item</span> <span class="op">=</span> <span class="ident">Message</span>;
<span class="kw">type</span> <span class="ident">Error</span> <span class="op">=</span> <span class="ident">ProtocolError</span>;
<span class="kw">fn</span> <span class="ident">poll</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</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="self">Self</span>::<span class="ident">Item</span><span class="op">></span>, <span class="self">Self</span>::<span class="ident">Error</span><span class="op">></span> {
<span class="kw">let</span> <span class="ident">max_size</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">max_size</span>;
<span class="kw">let</span> <span class="ident">no_masking</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">no_masking</span>;
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">inner</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">inner</span>.<span class="ident">borrow_mut</span>();
<span class="kw">if</span> <span class="ident">inner</span>.<span class="ident">closed</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="comment">// read</span>
<span class="kw">match</span> <span class="ident">Frame</span>::<span class="ident">parse</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">inner</span>.<span class="ident">rx</span>, <span class="ident">no_masking</span>, <span class="ident">max_size</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">frame</span>))) <span class="op">=></span> {
<span class="kw">let</span> (<span class="ident">_finished</span>, <span class="ident">opcode</span>, <span class="ident">payload</span>) <span class="op">=</span> <span class="ident">frame</span>.<span class="ident">unpack</span>();
<span class="kw">match</span> <span class="ident">opcode</span> {
<span class="comment">// continuation is not supported</span>
<span class="ident">OpCode</span>::<span class="ident">Continue</span> <span class="op">=></span> {
<span class="ident">inner</span>.<span class="ident">closed</span> <span class="op">=</span> <span class="bool-val">true</span>;
<span class="prelude-val">Err</span>(<span class="ident">ProtocolError</span>::<span class="ident">NoContinuation</span>)
}
<span class="ident">OpCode</span>::<span class="ident">Bad</span> <span class="op">=></span> {
<span class="ident">inner</span>.<span class="ident">closed</span> <span class="op">=</span> <span class="bool-val">true</span>;
<span class="prelude-val">Err</span>(<span class="ident">ProtocolError</span>::<span class="ident">BadOpCode</span>)
}
<span class="ident">OpCode</span>::<span class="ident">Close</span> <span class="op">=></span> {
<span class="ident">inner</span>.<span class="ident">closed</span> <span class="op">=</span> <span class="bool-val">true</span>;
<span class="kw">let</span> <span class="ident">close_reason</span> <span class="op">=</span> <span class="ident">Frame</span>::<span class="ident">parse_close_payload</span>(<span class="kw-2">&</span><span class="ident">payload</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">Message</span>::<span class="ident">Close</span>(<span class="ident">close_reason</span>))))
}
<span class="ident">OpCode</span>::<span class="ident">Ping</span> <span class="op">=></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">Message</span>::<span class="ident">Ping</span>(
<span class="ident">String</span>::<span class="ident">from_utf8_lossy</span>(<span class="ident">payload</span>.<span class="ident">as_ref</span>()).<span class="ident">into</span>(),
)))),
<span class="ident">OpCode</span>::<span class="ident">Pong</span> <span class="op">=></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">Message</span>::<span class="ident">Pong</span>(
<span class="ident">String</span>::<span class="ident">from_utf8_lossy</span>(<span class="ident">payload</span>.<span class="ident">as_ref</span>()).<span class="ident">into</span>(),
)))),
<span class="ident">OpCode</span>::<span class="ident">Binary</span> <span class="op">=></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">Message</span>::<span class="ident">Binary</span>(<span class="ident">payload</span>)))),
<span class="ident">OpCode</span>::<span class="ident">Text</span> <span class="op">=></span> {
<span class="kw">let</span> <span class="ident">tmp</span> <span class="op">=</span> <span class="ident">Vec</span>::<span class="ident">from</span>(<span class="ident">payload</span>.<span class="ident">as_ref</span>());
<span class="kw">match</span> <span class="ident">String</span>::<span class="ident">from_utf8</span>(<span class="ident">tmp</span>) {
<span class="prelude-val">Ok</span>(<span class="ident">s</span>) <span class="op">=></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">Message</span>::<span class="ident">Text</span>(<span class="ident">s</span>)))),
<span class="prelude-val">Err</span>(<span class="kw">_</span>) <span class="op">=></span> {
<span class="ident">inner</span>.<span class="ident">closed</span> <span class="op">=</span> <span class="bool-val">true</span>;
<span class="prelude-val">Err</span>(<span class="ident">ProtocolError</span>::<span class="ident">BadEncoding</span>)
}
}
}
}
}
<span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">Ready</span>(<span class="prelude-val">None</span>)) <span class="op">=></span> <span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">Ready</span>(<span class="prelude-val">None</span>)),
<span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">NotReady</span>) <span class="op">=></span> <span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">NotReady</span>),
<span class="prelude-val">Err</span>(<span class="ident">e</span>) <span class="op">=></span> {
<span class="ident">inner</span>.<span class="ident">closed</span> <span class="op">=</span> <span class="bool-val">true</span>;
<span class="prelude-val">Err</span>(<span class="ident">e</span>)
}
}
}
}
<span class="doccomment">/// Websocket writer client</span>
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">ClientWriter</span> {
<span class="ident">inner</span>: <span class="ident">Rc</span><span class="op"><</span><span class="ident">RefCell</span><span class="op"><</span><span class="ident">Inner</span><span class="op">>></span>,
}
<span class="kw">impl</span> <span class="ident">ClientWriter</span> {
<span class="doccomment">/// Write payload</span>
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">write</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="kw-2">mut</span> <span class="ident">data</span>: <span class="ident">FramedMessage</span>) {
<span class="kw">let</span> <span class="ident">inner</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">inner</span>.<span class="ident">borrow_mut</span>();
<span class="kw">if</span> <span class="op">!</span><span class="ident">inner</span>.<span class="ident">closed</span> {
<span class="kw">let</span> <span class="kw">_</span> <span class="op">=</span> <span class="ident">inner</span>.<span class="ident">tx</span>.<span class="ident">unbounded_send</span>(<span class="ident">data</span>.<span class="number">0</span>.<span class="ident">take</span>());
} <span class="kw">else</span> {
<span class="macro">warn</span><span class="macro">!</span>(<span class="string">"Trying to write to disconnected response"</span>);
}
}
<span class="doccomment">/// Send text frame</span>
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">text</span><span class="op"><</span><span class="ident">T</span>: <span class="ident">Into</span><span class="op"><</span><span class="ident">Binary</span><span class="op">>></span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">text</span>: <span class="ident">T</span>) {
<span class="self">self</span>.<span class="ident">write</span>(<span class="ident">Frame</span>::<span class="ident">message</span>(<span class="ident">text</span>.<span class="ident">into</span>(), <span class="ident">OpCode</span>::<span class="ident">Text</span>, <span class="bool-val">true</span>, <span class="bool-val">true</span>));
}
<span class="doccomment">/// Send binary frame</span>
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">binary</span><span class="op"><</span><span class="ident">B</span>: <span class="ident">Into</span><span class="op"><</span><span class="ident">Binary</span><span class="op">>></span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">data</span>: <span class="ident">B</span>) {
<span class="self">self</span>.<span class="ident">write</span>(<span class="ident">Frame</span>::<span class="ident">message</span>(<span class="ident">data</span>, <span class="ident">OpCode</span>::<span class="ident">Binary</span>, <span class="bool-val">true</span>, <span class="bool-val">true</span>));
}
<span class="doccomment">/// Send ping frame</span>
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">ping</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">message</span>: <span class="kw-2">&</span><span class="ident">str</span>) {
<span class="self">self</span>.<span class="ident">write</span>(<span class="ident">Frame</span>::<span class="ident">message</span>(<span class="ident">Vec</span>::<span class="ident">from</span>(<span class="ident">message</span>), <span class="ident">OpCode</span>::<span class="ident">Ping</span>, <span class="bool-val">true</span>, <span class="bool-val">true</span>));
}
<span class="doccomment">/// Send pong frame</span>
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">pong</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">message</span>: <span class="kw-2">&</span><span class="ident">str</span>) {
<span class="self">self</span>.<span class="ident">write</span>(<span class="ident">Frame</span>::<span class="ident">message</span>(<span class="ident">Vec</span>::<span class="ident">from</span>(<span class="ident">message</span>), <span class="ident">OpCode</span>::<span class="ident">Pong</span>, <span class="bool-val">true</span>, <span class="bool-val">true</span>));
}
<span class="doccomment">/// Send close frame</span>
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">close</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">reason</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">CloseReason</span><span class="op">></span>) {
<span class="self">self</span>.<span class="ident">write</span>(<span class="ident">Frame</span>::<span class="ident">close</span>(<span class="ident">reason</span>, <span class="bool-val">true</span>));
}
}
<span class="kw">impl</span> <span class="ident">WsWriter</span> <span class="kw">for</span> <span class="ident">ClientWriter</span> {
<span class="doccomment">/// Send text frame</span>
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">send_text</span><span class="op"><</span><span class="ident">T</span>: <span class="ident">Into</span><span class="op"><</span><span class="ident">Binary</span><span class="op">>></span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">text</span>: <span class="ident">T</span>) {
<span class="self">self</span>.<span class="ident">text</span>(<span class="ident">text</span>)
}
<span class="doccomment">/// Send binary frame</span>
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">send_binary</span><span class="op"><</span><span class="ident">B</span>: <span class="ident">Into</span><span class="op"><</span><span class="ident">Binary</span><span class="op">>></span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">data</span>: <span class="ident">B</span>) {
<span class="self">self</span>.<span class="ident">binary</span>(<span class="ident">data</span>)
}
<span class="doccomment">/// Send ping frame</span>
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">send_ping</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">message</span>: <span class="kw-2">&</span><span class="ident">str</span>) {
<span class="self">self</span>.<span class="ident">ping</span>(<span class="ident">message</span>)
}
<span class="doccomment">/// Send pong frame</span>
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">send_pong</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">message</span>: <span class="kw-2">&</span><span class="ident">str</span>) {
<span class="self">self</span>.<span class="ident">pong</span>(<span class="ident">message</span>)
}
<span class="doccomment">/// Send close frame</span>
<span class="attribute">#[<span class="ident">inline</span>]</span>
<span class="kw">fn</span> <span class="ident">send_close</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">reason</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">CloseReason</span><span class="op">></span>) {
<span class="self">self</span>.<span class="ident">close</span>(<span class="ident">reason</span>);
}
}
</pre>
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