59 lines
1.5 KiB
Rust
59 lines
1.5 KiB
Rust
use ascii::AsciiString;
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use error::Error;
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use std::str::FromStr;
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#[derive(Debug, Clone)]
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/// Wrapper type for a header line.
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pub struct Header {
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line: AsciiString,
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index: usize,
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}
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impl Header {
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/// The header name.
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///
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/// ```
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/// let header = "X-Forwarded-For: 127.0.0.1".parse::<ureq::Header>().unwrap();
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/// assert_eq!("X-Forwarded-For", header.name());
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/// ```
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pub fn name(&self) -> &str {
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&self.line.as_str()[0..self.index]
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}
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/// The header value.
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///
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/// ```
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/// let header = "X-Forwarded-For: 127.0.0.1".parse::<ureq::Header>().unwrap();
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/// assert_eq!("127.0.0.1", header.value());
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/// ```
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pub fn value(&self) -> &str {
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&self.line.as_str()[self.index + 1..].trim()
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}
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/// Compares the given str to the header name ignoring case.
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///
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/// ```
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/// let header = "X-Forwarded-For: 127.0.0.1".parse::<ureq::Header>().unwrap();
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/// assert!(header.is_name("x-forwarded-for"));
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/// ```
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pub fn is_name(&self, other: &str) -> bool {
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self.name().eq_ignore_ascii_case(other)
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}
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}
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impl FromStr for Header {
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type Err = Error;
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fn from_str(s: &str) -> Result<Self, Self::Err> {
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//
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let line = AsciiString::from_str(s).map_err(|_| Error::BadHeader)?;
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let index = s.find(":").ok_or_else(|| Error::BadHeader)?;
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// no value?
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if index >= s.len() {
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return Err(Error::BadHeader);
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}
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Ok(Header { line, index })
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}
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}
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