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</pre><div class="example-wrap"><pre class="rust ">
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">borrow</span>::<span class="ident">Cow</span>;
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">fmt</span>;
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">str</span>;
<span class="kw">use</span> <span class="ident">actix_web</span>::<span class="ident">http</span>::<span class="ident">header</span>::{<span class="ident">HeaderValue</span>, <span class="ident">IntoHeaderValue</span>, <span class="ident">InvalidHeaderValue</span>};
<span class="kw">use</span> <span class="ident">actix_web</span>::<span class="ident">web</span>::{<span class="ident">BufMut</span>, <span class="ident">BytesMut</span>};
<span class="kw">use</span> <span class="kw">crate</span>::<span class="ident">headers</span>::<span class="ident">authorization</span>::<span class="ident">errors</span>::<span class="ident">ParseError</span>;
<span class="kw">use</span> <span class="kw">crate</span>::<span class="ident">headers</span>::<span class="ident">authorization</span>::<span class="ident">Scheme</span>;
<span class="doccomment">/// Credentials for `Basic` authentication scheme, defined in [RFC 7617](https://tools.ietf.org/html/rfc7617)</span>
<span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Clone</span>, <span class="ident">Eq</span>, <span class="ident">Ord</span>, <span class="ident">PartialEq</span>, <span class="ident">PartialOrd</span>)]</span>
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">Basic</span> {
<span class="ident">user_id</span>: <span class="ident">Cow</span><span class="op"><</span><span class="lifetime">'static</span>, <span class="ident">str</span><span class="op">></span>,
<span class="ident">password</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">Cow</span><span class="op"><</span><span class="lifetime">'static</span>, <span class="ident">str</span><span class="op">></span><span class="op">></span>,
}
<span class="kw">impl</span> <span class="ident">Basic</span> {
<span class="doccomment">/// Creates `Basic` credentials with provided `user_id` and optional</span>
<span class="doccomment">/// `password`.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// ## Example</span>
<span class="doccomment">///</span>
<span class="doccomment">/// ```</span>
<span class="doccomment">/// # use actix_web_httpauth::headers::authorization::Basic;</span>
<span class="doccomment">/// let credentials = Basic::new("Alladin", Some("open sesame"));</span>
<span class="doccomment">/// ```</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">new</span><span class="op"><</span><span class="ident">U</span>, <span class="ident">P</span><span class="op">></span>(<span class="ident">user_id</span>: <span class="ident">U</span>, <span class="ident">password</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">P</span><span class="op">></span>) <span class="op">-</span><span class="op">></span> <span class="ident">Basic</span>
<span class="kw">where</span>
<span class="ident">U</span>: <span class="ident">Into</span><span class="op"><</span><span class="ident">Cow</span><span class="op"><</span><span class="lifetime">'static</span>, <span class="ident">str</span><span class="op">></span><span class="op">></span>,
<span class="ident">P</span>: <span class="ident">Into</span><span class="op"><</span><span class="ident">Cow</span><span class="op"><</span><span class="lifetime">'static</span>, <span class="ident">str</span><span class="op">></span><span class="op">></span>,
{
<span class="ident">Basic</span> {
<span class="ident">user_id</span>: <span class="ident">user_id</span>.<span class="ident">into</span>(),
<span class="ident">password</span>: <span class="ident">password</span>.<span class="ident">map</span>(<span class="ident">Into</span>::<span class="ident">into</span>),
}
}
<span class="doccomment">/// Returns client's user-ID.</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">user_id</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-</span><span class="op">></span> <span class="kw-2">&</span><span class="ident">Cow</span><span class="op"><</span><span class="lifetime">'static</span>, <span class="ident">str</span><span class="op">></span> {
<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">user_id</span>
}
<span class="doccomment">/// Returns client's password if provided.</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">password</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-</span><span class="op">></span> <span class="prelude-ty">Option</span><span class="op"><</span><span class="kw-2">&</span><span class="ident">Cow</span><span class="op"><</span><span class="lifetime">'static</span>, <span class="ident">str</span><span class="op">></span><span class="op">></span> {
<span class="self">self</span>.<span class="ident">password</span>.<span class="ident">as_ref</span>()
}
}
<span class="kw">impl</span> <span class="ident">Scheme</span> <span class="kw">for</span> <span class="ident">Basic</span> {
<span class="kw">fn</span> <span class="ident">parse</span>(<span class="ident">header</span>: <span class="kw-2">&</span><span class="ident">HeaderValue</span>) <span class="op">-</span><span class="op">></span> <span class="prelude-ty">Result</span><span class="op"><</span><span class="self">Self</span>, <span class="ident">ParseError</span><span class="op">></span> {
<span class="comment">// "Basic *" length</span>
<span class="kw">if</span> <span class="ident">header</span>.<span class="ident">len</span>() <span class="op"><</span> <span class="number">7</span> {
<span class="kw">return</span> <span class="prelude-val">Err</span>(<span class="ident">ParseError</span>::<span class="ident">Invalid</span>);
}
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">parts</span> <span class="op">=</span> <span class="ident">header</span>.<span class="ident">to_str</span>()<span class="question-mark">?</span>.<span class="ident">splitn</span>(<span class="number">2</span>, <span class="string">' '</span>);
<span class="kw">match</span> <span class="ident">parts</span>.<span class="ident">next</span>() {
<span class="prelude-val">Some</span>(<span class="ident">scheme</span>) <span class="kw">if</span> <span class="ident">scheme</span> <span class="op">=</span><span class="op">=</span> <span class="string">"Basic"</span> <span class="op">=</span><span class="op">></span> (),
<span class="kw">_</span> <span class="op">=</span><span class="op">></span> <span class="kw">return</span> <span class="prelude-val">Err</span>(<span class="ident">ParseError</span>::<span class="ident">MissingScheme</span>),
}
<span class="kw">let</span> <span class="ident">decoded</span> <span class="op">=</span> <span class="ident">base64</span>::<span class="ident">decode</span>(<span class="ident">parts</span>.<span class="ident">next</span>().<span class="ident">ok_or</span>(<span class="ident">ParseError</span>::<span class="ident">Invalid</span>)<span class="question-mark">?</span>)<span class="question-mark">?</span>;
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">credentials</span> <span class="op">=</span> <span class="ident">str</span>::<span class="ident">from_utf8</span>(<span class="kw-2">&</span><span class="ident">decoded</span>)<span class="question-mark">?</span>.<span class="ident">splitn</span>(<span class="number">2</span>, <span class="string">':'</span>);
<span class="kw">let</span> <span class="ident">user_id</span> <span class="op">=</span> <span class="ident">credentials</span>
.<span class="ident">next</span>()
.<span class="ident">ok_or</span>(<span class="ident">ParseError</span>::<span class="ident">MissingField</span>(<span class="string">"user_id"</span>))
.<span class="ident">map</span>(<span class="op">|</span><span class="ident">user_id</span><span class="op">|</span> <span class="ident">user_id</span>.<span class="ident">to_string</span>().<span class="ident">into</span>())<span class="question-mark">?</span>;
<span class="kw">let</span> <span class="ident">password</span> <span class="op">=</span> <span class="ident">credentials</span>
.<span class="ident">next</span>()
.<span class="ident">ok_or</span>(<span class="ident">ParseError</span>::<span class="ident">MissingField</span>(<span class="string">"password"</span>))
.<span class="ident">map</span>(<span class="op">|</span><span class="ident">password</span><span class="op">|</span> {
<span class="kw">if</span> <span class="ident">password</span>.<span class="ident">is_empty</span>() {
<span class="prelude-val">None</span>
} <span class="kw">else</span> {
<span class="prelude-val">Some</span>(<span class="ident">password</span>.<span class="ident">to_string</span>().<span class="ident">into</span>())
}
})<span class="question-mark">?</span>;
<span class="prelude-val">Ok</span>(<span class="ident">Basic</span> { <span class="ident">user_id</span>, <span class="ident">password</span> })
}
}
<span class="kw">impl</span> <span class="ident">fmt</span>::<span class="ident">Debug</span> <span class="kw">for</span> <span class="ident">Basic</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="lifetime">'_</span><span class="op">></span>) <span class="op">-</span><span class="op">></span> <span class="ident">fmt</span>::<span class="prelude-ty">Result</span> {
<span class="ident">f</span>.<span class="ident">write_fmt</span>(<span class="macro">format_args</span><span class="macro">!</span>(<span class="string">"Basic {}:******"</span>, <span class="self">self</span>.<span class="ident">user_id</span>))
}
}
<span class="kw">impl</span> <span class="ident">fmt</span>::<span class="ident">Display</span> <span class="kw">for</span> <span class="ident">Basic</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="lifetime">'_</span><span class="op">></span>) <span class="op">-</span><span class="op">></span> <span class="ident">fmt</span>::<span class="prelude-ty">Result</span> {
<span class="ident">f</span>.<span class="ident">write_fmt</span>(<span class="macro">format_args</span><span class="macro">!</span>(<span class="string">"Basic {}:******"</span>, <span class="self">self</span>.<span class="ident">user_id</span>))
}
}
<span class="kw">impl</span> <span class="ident">IntoHeaderValue</span> <span class="kw">for</span> <span class="ident">Basic</span> {
<span class="kw">type</span> <span class="ident">Error</span> <span class="op">=</span> <span class="ident">InvalidHeaderValue</span>;
<span class="kw">fn</span> <span class="ident">try_into_value</span>(<span class="self">self</span>) <span class="op">-</span><span class="op">></span> <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">HeaderValue</span>, <span class="op"><</span><span class="self">Self</span> <span class="kw">as</span> <span class="ident">IntoHeaderValue</span><span class="op">></span>::<span class="ident">Error</span><span class="op">></span> {
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">credentials</span> <span class="op">=</span> <span class="ident">BytesMut</span>::<span class="ident">with_capacity</span>(
<span class="self">self</span>.<span class="ident">user_id</span>.<span class="ident">len</span>()
<span class="op">+</span> <span class="number">1</span> <span class="comment">// ':'</span>
<span class="op">+</span> <span class="self">self</span>.<span class="ident">password</span>.<span class="ident">as_ref</span>().<span class="ident">map_or</span>(<span class="number">0</span>, <span class="op">|</span><span class="ident">pwd</span><span class="op">|</span> <span class="ident">pwd</span>.<span class="ident">len</span>()),
);
<span class="ident">credentials</span>.<span class="ident">extend_from_slice</span>(<span class="self">self</span>.<span class="ident">user_id</span>.<span class="ident">as_bytes</span>());
<span class="ident">credentials</span>.<span class="ident">put_u8</span>(<span class="string">b':'</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="ident">password</span>) <span class="op">=</span> <span class="self">self</span>.<span class="ident">password</span> {
<span class="ident">credentials</span>.<span class="ident">extend_from_slice</span>(<span class="ident">password</span>.<span class="ident">as_bytes</span>());
}
<span class="comment">// TODO: It would be nice not to allocate new `String` here but write</span>
<span class="comment">// directly to `value`</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">credentials</span>);
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">value</span> <span class="op">=</span> <span class="ident">BytesMut</span>::<span class="ident">with_capacity</span>(<span class="number">6</span> <span class="op">+</span> <span class="ident">encoded</span>.<span class="ident">len</span>());
<span class="ident">value</span>.<span class="ident">put</span>(<span class="kw-2">&</span><span class="string">b"Basic "</span>[..]);
<span class="ident">value</span>.<span class="ident">put</span>(<span class="ident">encoded</span>.<span class="ident">as_bytes</span>());
<span class="ident">HeaderValue</span>::<span class="ident">from_maybe_shared</span>(<span class="ident">value</span>.<span class="ident">freeze</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="ident">Basic</span>, <span class="ident">Scheme</span>};
<span class="kw">use</span> <span class="ident">actix_web</span>::<span class="ident">http</span>::<span class="ident">header</span>::{<span class="ident">HeaderValue</span>, <span class="ident">IntoHeaderValue</span>};
<span class="attribute">#[<span class="ident">test</span>]</span>
<span class="kw">fn</span> <span class="ident">test_parse_header</span>() {
<span class="kw">let</span> <span class="ident">value</span> <span class="op">=</span> <span class="ident">HeaderValue</span>::<span class="ident">from_static</span>(<span class="string">"Basic QWxhZGRpbjpvcGVuIHNlc2FtZQ=="</span>);
<span class="kw">let</span> <span class="ident">scheme</span> <span class="op">=</span> <span class="ident">Basic</span>::<span class="ident">parse</span>(<span class="kw-2">&</span><span class="ident">value</span>);
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">scheme</span>.<span class="ident">is_ok</span>());
<span class="kw">let</span> <span class="ident">scheme</span> <span class="op">=</span> <span class="ident">scheme</span>.<span class="ident">unwrap</span>();
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">scheme</span>.<span class="ident">user_id</span>, <span class="string">"Aladdin"</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">scheme</span>.<span class="ident">password</span>, <span class="prelude-val">Some</span>(<span class="string">"open sesame"</span>.<span class="ident">into</span>()));
}
<span class="attribute">#[<span class="ident">test</span>]</span>
<span class="kw">fn</span> <span class="ident">test_empty_password</span>() {
<span class="kw">let</span> <span class="ident">value</span> <span class="op">=</span> <span class="ident">HeaderValue</span>::<span class="ident">from_static</span>(<span class="string">"Basic QWxhZGRpbjo="</span>);
<span class="kw">let</span> <span class="ident">scheme</span> <span class="op">=</span> <span class="ident">Basic</span>::<span class="ident">parse</span>(<span class="kw-2">&</span><span class="ident">value</span>);
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">scheme</span>.<span class="ident">is_ok</span>());
<span class="kw">let</span> <span class="ident">scheme</span> <span class="op">=</span> <span class="ident">scheme</span>.<span class="ident">unwrap</span>();
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">scheme</span>.<span class="ident">user_id</span>, <span class="string">"Aladdin"</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">scheme</span>.<span class="ident">password</span>, <span class="prelude-val">None</span>);
}
<span class="attribute">#[<span class="ident">test</span>]</span>
<span class="kw">fn</span> <span class="ident">test_empty_header</span>() {
<span class="kw">let</span> <span class="ident">value</span> <span class="op">=</span> <span class="ident">HeaderValue</span>::<span class="ident">from_static</span>(<span class="string">""</span>);
<span class="kw">let</span> <span class="ident">scheme</span> <span class="op">=</span> <span class="ident">Basic</span>::<span class="ident">parse</span>(<span class="kw-2">&</span><span class="ident">value</span>);
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">scheme</span>.<span class="ident">is_err</span>());
}
<span class="attribute">#[<span class="ident">test</span>]</span>
<span class="kw">fn</span> <span class="ident">test_wrong_scheme</span>() {
<span class="kw">let</span> <span class="ident">value</span> <span class="op">=</span> <span class="ident">HeaderValue</span>::<span class="ident">from_static</span>(<span class="string">"THOUSHALLNOTPASS please?"</span>);
<span class="kw">let</span> <span class="ident">scheme</span> <span class="op">=</span> <span class="ident">Basic</span>::<span class="ident">parse</span>(<span class="kw-2">&</span><span class="ident">value</span>);
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">scheme</span>.<span class="ident">is_err</span>());
}
<span class="attribute">#[<span class="ident">test</span>]</span>
<span class="kw">fn</span> <span class="ident">test_missing_credentials</span>() {
<span class="kw">let</span> <span class="ident">value</span> <span class="op">=</span> <span class="ident">HeaderValue</span>::<span class="ident">from_static</span>(<span class="string">"Basic "</span>);
<span class="kw">let</span> <span class="ident">scheme</span> <span class="op">=</span> <span class="ident">Basic</span>::<span class="ident">parse</span>(<span class="kw-2">&</span><span class="ident">value</span>);
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">scheme</span>.<span class="ident">is_err</span>());
}
<span class="attribute">#[<span class="ident">test</span>]</span>
<span class="kw">fn</span> <span class="ident">test_missing_credentials_colon</span>() {
<span class="kw">let</span> <span class="ident">value</span> <span class="op">=</span> <span class="ident">HeaderValue</span>::<span class="ident">from_static</span>(<span class="string">"Basic QWxsYWRpbg=="</span>);
<span class="kw">let</span> <span class="ident">scheme</span> <span class="op">=</span> <span class="ident">Basic</span>::<span class="ident">parse</span>(<span class="kw-2">&</span><span class="ident">value</span>);
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">scheme</span>.<span class="ident">is_err</span>());
}
<span class="attribute">#[<span class="ident">test</span>]</span>
<span class="kw">fn</span> <span class="ident">test_into_header_value</span>() {
<span class="kw">let</span> <span class="ident">basic</span> <span class="op">=</span> <span class="ident">Basic</span> {
<span class="ident">user_id</span>: <span class="string">"Aladdin"</span>.<span class="ident">into</span>(),
<span class="ident">password</span>: <span class="prelude-val">Some</span>(<span class="string">"open sesame"</span>.<span class="ident">into</span>()),
};
<span class="kw">let</span> <span class="ident">result</span> <span class="op">=</span> <span class="ident">basic</span>.<span class="ident">try_into_value</span>();
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">result</span>.<span class="ident">is_ok</span>());
<span class="macro">assert_eq</span><span class="macro">!</span>(
<span class="ident">result</span>.<span class="ident">unwrap</span>(),
<span class="ident">HeaderValue</span>::<span class="ident">from_static</span>(<span class="string">"Basic QWxhZGRpbjpvcGVuIHNlc2FtZQ=="</span>)
);
}
}
</pre></div>
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