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</pre></div><pre class="rust"><code><span class="kw">use </span>std::{borrow::Cow, fmt, str};
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<span class="kw">use </span>actix_web::{
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http::header::{HeaderValue, InvalidHeaderValue, TryIntoHeaderValue},
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web::{BufMut, BytesMut},
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};
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<span class="kw">use </span>base64::{prelude::BASE64_STANDARD, Engine};
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<span class="kw">use </span><span class="kw">crate</span>::headers::authorization::{errors::ParseError, Scheme};
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<span class="doccomment">/// Credentials for `Basic` authentication scheme, defined in [RFC 7617](https://tools.ietf.org/html/rfc7617)
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</span><span class="attr">#[derive(Clone, PartialEq, Eq, PartialOrd, Ord)]
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</span><span class="kw">pub struct </span>Basic {
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user_id: Cow<<span class="lifetime">'static</span>, str>,
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password: <span class="prelude-ty">Option</span><Cow<<span class="lifetime">'static</span>, str>>,
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}
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<span class="kw">impl </span>Basic {
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<span class="doccomment">/// Creates `Basic` credentials with provided `user_id` and optional
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/// `password`.
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///
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/// # Examples
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/// ```
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/// # use actix_web_httpauth::headers::authorization::Basic;
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/// let credentials = Basic::new("Alladin", Some("open sesame"));
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/// ```
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</span><span class="kw">pub fn </span>new<U, P>(user_id: U, password: <span class="prelude-ty">Option</span><P>) -> Basic
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<span class="kw">where
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</span>U: Into<Cow<<span class="lifetime">'static</span>, str>>,
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P: Into<Cow<<span class="lifetime">'static</span>, str>>,
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{
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Basic {
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user_id: user_id.into(),
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password: password.map(Into::into),
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}
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}
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<span class="doccomment">/// Returns client's user-ID.
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</span><span class="kw">pub fn </span>user_id(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span>str {
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<span class="self">self</span>.user_id.as_ref()
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}
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<span class="doccomment">/// Returns client's password if provided.
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</span><span class="kw">pub fn </span>password(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><<span class="kw-2">&</span>str> {
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<span class="self">self</span>.password.as_deref()
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}
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}
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<span class="kw">impl </span>Scheme <span class="kw">for </span>Basic {
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<span class="kw">fn </span>parse(header: <span class="kw-2">&</span>HeaderValue) -> <span class="prelude-ty">Result</span><<span class="self">Self</span>, ParseError> {
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<span class="comment">// "Basic *" length
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</span><span class="kw">if </span>header.len() < <span class="number">7 </span>{
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<span class="kw">return </span><span class="prelude-val">Err</span>(ParseError::Invalid);
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}
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<span class="kw">let </span><span class="kw-2">mut </span>parts = header.to_str()<span class="question-mark">?</span>.splitn(<span class="number">2</span>, <span class="string">' '</span>);
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<span class="kw">match </span>parts.next() {
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<span class="prelude-val">Some</span>(<span class="string">"Basic"</span>) => (),
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<span class="kw">_ </span>=> <span class="kw">return </span><span class="prelude-val">Err</span>(ParseError::MissingScheme),
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}
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<span class="kw">let </span>decoded = BASE64_STANDARD.decode(parts.next().ok_or(ParseError::Invalid)<span class="question-mark">?</span>)<span class="question-mark">?</span>;
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<span class="kw">let </span><span class="kw-2">mut </span>credentials = str::from_utf8(<span class="kw-2">&</span>decoded)<span class="question-mark">?</span>.splitn(<span class="number">2</span>, <span class="string">':'</span>);
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<span class="kw">let </span>user_id = credentials
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.next()
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.ok_or(ParseError::MissingField(<span class="string">"user_id"</span>))
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.map(|user_id| user_id.to_string().into())<span class="question-mark">?</span>;
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<span class="kw">let </span>password = credentials
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.next()
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.ok_or(ParseError::MissingField(<span class="string">"password"</span>))
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.map(|password| {
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<span class="kw">if </span>password.is_empty() {
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<span class="prelude-val">None
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</span>} <span class="kw">else </span>{
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<span class="prelude-val">Some</span>(password.to_string().into())
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}
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})<span class="question-mark">?</span>;
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<span class="prelude-val">Ok</span>(Basic { user_id, password })
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}
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}
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<span class="kw">impl </span>fmt::Debug <span class="kw">for </span>Basic {
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<span class="kw">fn </span>fmt(<span class="kw-2">&</span><span class="self">self</span>, f: <span class="kw-2">&mut </span>fmt::Formatter<<span class="lifetime">'_</span>>) -> fmt::Result {
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f.write_fmt(<span class="macro">format_args!</span>(<span class="string">"Basic {}:******"</span>, <span class="self">self</span>.user_id))
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}
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}
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<span class="kw">impl </span>fmt::Display <span class="kw">for </span>Basic {
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<span class="kw">fn </span>fmt(<span class="kw-2">&</span><span class="self">self</span>, f: <span class="kw-2">&mut </span>fmt::Formatter<<span class="lifetime">'_</span>>) -> fmt::Result {
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f.write_fmt(<span class="macro">format_args!</span>(<span class="string">"Basic {}:******"</span>, <span class="self">self</span>.user_id))
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}
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}
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<span class="kw">impl </span>TryIntoHeaderValue <span class="kw">for </span>Basic {
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<span class="kw">type </span>Error = InvalidHeaderValue;
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<span class="kw">fn </span>try_into_value(<span class="self">self</span>) -> <span class="prelude-ty">Result</span><HeaderValue, <span class="self">Self</span>::Error> {
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<span class="kw">let </span>credential_length =
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<span class="self">self</span>.user_id.len() + <span class="number">1 </span>+ <span class="self">self</span>.password.as_ref().map_or(<span class="number">0</span>, |pwd| pwd.len());
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<span class="comment">// The length of BASE64 encoded bytes is `4 * credential_length.div_ceil(3)`
|
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// TODO: Use credential_length.div_ceil(3) when `int_roundings` becomes stable
|
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// https://github.com/rust-lang/rust/issues/88581
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</span><span class="kw">let </span><span class="kw-2">mut </span>value = String::with_capacity(<span class="number">6 </span>+ <span class="number">4 </span>* (credential_length + <span class="number">2</span>) / <span class="number">3</span>);
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<span class="kw">let </span><span class="kw-2">mut </span>credentials = BytesMut::with_capacity(credential_length);
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|
||
credentials.extend_from_slice(<span class="self">self</span>.user_id.as_bytes());
|
||
credentials.put_u8(<span class="string">b':'</span>);
|
||
<span class="kw">if let </span><span class="prelude-val">Some</span>(<span class="kw-2">ref </span>password) = <span class="self">self</span>.password {
|
||
credentials.extend_from_slice(password.as_bytes());
|
||
}
|
||
|
||
value.push_str(<span class="string">"Basic "</span>);
|
||
BASE64_STANDARD.encode_string(<span class="kw-2">&</span>credentials, <span class="kw-2">&mut </span>value);
|
||
|
||
HeaderValue::from_maybe_shared(value)
|
||
}
|
||
}
|
||
|
||
<span class="attr">#[cfg(test)]
|
||
</span><span class="kw">mod </span>tests {
|
||
<span class="kw">use super</span>::<span class="kw-2">*</span>;
|
||
|
||
<span class="attr">#[test]
|
||
</span><span class="kw">fn </span>test_parse_header() {
|
||
<span class="kw">let </span>value = HeaderValue::from_static(<span class="string">"Basic QWxhZGRpbjpvcGVuIHNlc2FtZQ=="</span>);
|
||
<span class="kw">let </span>scheme = Basic::parse(<span class="kw-2">&</span>value);
|
||
|
||
<span class="macro">assert!</span>(scheme.is_ok());
|
||
<span class="kw">let </span>scheme = scheme.unwrap();
|
||
<span class="macro">assert_eq!</span>(scheme.user_id, <span class="string">"Aladdin"</span>);
|
||
<span class="macro">assert_eq!</span>(scheme.password, <span class="prelude-val">Some</span>(<span class="string">"open sesame"</span>.into()));
|
||
}
|
||
|
||
<span class="attr">#[test]
|
||
</span><span class="kw">fn </span>test_empty_password() {
|
||
<span class="kw">let </span>value = HeaderValue::from_static(<span class="string">"Basic QWxhZGRpbjo="</span>);
|
||
<span class="kw">let </span>scheme = Basic::parse(<span class="kw-2">&</span>value);
|
||
|
||
<span class="macro">assert!</span>(scheme.is_ok());
|
||
<span class="kw">let </span>scheme = scheme.unwrap();
|
||
<span class="macro">assert_eq!</span>(scheme.user_id, <span class="string">"Aladdin"</span>);
|
||
<span class="macro">assert_eq!</span>(scheme.password, <span class="prelude-val">None</span>);
|
||
}
|
||
|
||
<span class="attr">#[test]
|
||
</span><span class="kw">fn </span>test_empty_header() {
|
||
<span class="kw">let </span>value = HeaderValue::from_static(<span class="string">""</span>);
|
||
<span class="kw">let </span>scheme = Basic::parse(<span class="kw-2">&</span>value);
|
||
|
||
<span class="macro">assert!</span>(scheme.is_err());
|
||
}
|
||
|
||
<span class="attr">#[test]
|
||
</span><span class="kw">fn </span>test_wrong_scheme() {
|
||
<span class="kw">let </span>value = HeaderValue::from_static(<span class="string">"THOUSHALLNOTPASS please?"</span>);
|
||
<span class="kw">let </span>scheme = Basic::parse(<span class="kw-2">&</span>value);
|
||
|
||
<span class="macro">assert!</span>(scheme.is_err());
|
||
}
|
||
|
||
<span class="attr">#[test]
|
||
</span><span class="kw">fn </span>test_missing_credentials() {
|
||
<span class="kw">let </span>value = HeaderValue::from_static(<span class="string">"Basic "</span>);
|
||
<span class="kw">let </span>scheme = Basic::parse(<span class="kw-2">&</span>value);
|
||
|
||
<span class="macro">assert!</span>(scheme.is_err());
|
||
}
|
||
|
||
<span class="attr">#[test]
|
||
</span><span class="kw">fn </span>test_missing_credentials_colon() {
|
||
<span class="kw">let </span>value = HeaderValue::from_static(<span class="string">"Basic QWxsYWRpbg=="</span>);
|
||
<span class="kw">let </span>scheme = Basic::parse(<span class="kw-2">&</span>value);
|
||
|
||
<span class="macro">assert!</span>(scheme.is_err());
|
||
}
|
||
|
||
<span class="attr">#[test]
|
||
</span><span class="kw">fn </span>test_into_header_value() {
|
||
<span class="kw">let </span>basic = Basic {
|
||
user_id: <span class="string">"Aladdin"</span>.into(),
|
||
password: <span class="prelude-val">Some</span>(<span class="string">"open sesame"</span>.into()),
|
||
};
|
||
|
||
<span class="kw">let </span>result = basic.try_into_value();
|
||
<span class="macro">assert!</span>(result.is_ok());
|
||
<span class="macro">assert_eq!</span>(
|
||
result.unwrap(),
|
||
HeaderValue::from_static(<span class="string">"Basic QWxhZGRpbjpvcGVuIHNlc2FtZQ=="</span>)
|
||
);
|
||
}
|
||
}
|
||
</code></pre></div></section></main></body></html> |