RPM build fix (reverted CI changes which will need to be un-reverted or made conditional) and vendor Rust dependencies to make builds much faster in any CI system.

zeroidc/vendor/url/src/host.rs

@@ -0,0 +1,480 @@
+// Copyright 2013-2016 The rust-url developers.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+use std::cmp;
+use std::fmt::{self, Formatter};
+use std::net::{Ipv4Addr, Ipv6Addr};
+
+use percent_encoding::{percent_decode, utf8_percent_encode, CONTROLS};
+#[cfg(feature = "serde")]
+use serde::{Deserialize, Serialize};
+
+use crate::parser::{ParseError, ParseResult};
+
+#[cfg_attr(feature = "serde", derive(Deserialize, Serialize))]
+#[derive(Copy, Clone, Debug, Eq, PartialEq)]
+pub(crate) enum HostInternal {
+    None,
+    Domain,
+    Ipv4(Ipv4Addr),
+    Ipv6(Ipv6Addr),
+}
+
+impl From<Host<String>> for HostInternal {
+    fn from(host: Host<String>) -> HostInternal {
+        match host {
+            Host::Domain(ref s) if s.is_empty() => HostInternal::None,
+            Host::Domain(_) => HostInternal::Domain,
+            Host::Ipv4(address) => HostInternal::Ipv4(address),
+            Host::Ipv6(address) => HostInternal::Ipv6(address),
+        }
+    }
+}
+
+/// The host name of an URL.
+#[cfg_attr(feature = "serde", derive(Deserialize, Serialize))]
+#[derive(Clone, Debug, Eq, Ord, PartialOrd, Hash)]
+pub enum Host<S = String> {
+    /// A DNS domain name, as '.' dot-separated labels.
+    /// Non-ASCII labels are encoded in punycode per IDNA if this is the host of
+    /// a special URL, or percent encoded for non-special URLs. Hosts for
+    /// non-special URLs are also called opaque hosts.
+    Domain(S),
+
+    /// An IPv4 address.
+    /// `Url::host_str` returns the serialization of this address,
+    /// as four decimal integers separated by `.` dots.
+    Ipv4(Ipv4Addr),
+
+    /// An IPv6 address.
+    /// `Url::host_str` returns the serialization of that address between `[` and `]` brackets,
+    /// in the format per [RFC 5952 *A Recommendation
+    /// for IPv6 Address Text Representation*](https://tools.ietf.org/html/rfc5952):
+    /// lowercase hexadecimal with maximal `::` compression.
+    Ipv6(Ipv6Addr),
+}
+
+impl<'a> Host<&'a str> {
+    /// Return a copy of `self` that owns an allocated `String` but does not borrow an `&Url`.
+    pub fn to_owned(&self) -> Host<String> {
+        match *self {
+            Host::Domain(domain) => Host::Domain(domain.to_owned()),
+            Host::Ipv4(address) => Host::Ipv4(address),
+            Host::Ipv6(address) => Host::Ipv6(address),
+        }
+    }
+}
+
+impl Host<String> {
+    /// Parse a host: either an IPv6 address in [] square brackets, or a domain.
+    ///
+    /// <https://url.spec.whatwg.org/#host-parsing>
+    pub fn parse(input: &str) -> Result<Self, ParseError> {
+        if input.starts_with('[') {
+            if !input.ends_with(']') {
+                return Err(ParseError::InvalidIpv6Address);
+            }
+            return parse_ipv6addr(&input[1..input.len() - 1]).map(Host::Ipv6);
+        }
+        let domain = percent_decode(input.as_bytes()).decode_utf8_lossy();
+        let domain = idna::domain_to_ascii(&domain)?;
+        if domain.is_empty() {
+            return Err(ParseError::EmptyHost);
+        }
+
+        let is_invalid_domain_char = |c| {
+            matches!(
+                c,
+                '\0' | '\t'
+                    | '\n'
+                    | '\r'
+                    | ' '
+                    | '#'
+                    | '%'
+                    | '/'
+                    | ':'
+                    | '<'
+                    | '>'
+                    | '?'
+                    | '@'
+                    | '['
+                    | '\\'
+                    | ']'
+                    | '^'
+            )
+        };
+
+        if domain.find(is_invalid_domain_char).is_some() {
+            Err(ParseError::InvalidDomainCharacter)
+        } else if let Some(address) = parse_ipv4addr(&domain)? {
+            Ok(Host::Ipv4(address))
+        } else {
+            Ok(Host::Domain(domain))
+        }
+    }
+
+    // <https://url.spec.whatwg.org/#concept-opaque-host-parser>
+    pub fn parse_opaque(input: &str) -> Result<Self, ParseError> {
+        if input.starts_with('[') {
+            if !input.ends_with(']') {
+                return Err(ParseError::InvalidIpv6Address);
+            }
+            return parse_ipv6addr(&input[1..input.len() - 1]).map(Host::Ipv6);
+        }
+
+        let is_invalid_host_char = |c| {
+            matches!(
+                c,
+                '\0' | '\t'
+                    | '\n'
+                    | '\r'
+                    | ' '
+                    | '#'
+                    | '/'
+                    | ':'
+                    | '<'
+                    | '>'
+                    | '?'
+                    | '@'
+                    | '['
+                    | '\\'
+                    | ']'
+                    | '^'
+            )
+        };
+
+        if input.find(is_invalid_host_char).is_some() {
+            Err(ParseError::InvalidDomainCharacter)
+        } else {
+            Ok(Host::Domain(
+                utf8_percent_encode(input, CONTROLS).to_string(),
+            ))
+        }
+    }
+}
+
+impl<S: AsRef<str>> fmt::Display for Host<S> {
+    fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
+        match *self {
+            Host::Domain(ref domain) => domain.as_ref().fmt(f),
+            Host::Ipv4(ref addr) => addr.fmt(f),
+            Host::Ipv6(ref addr) => {
+                f.write_str("[")?;
+                write_ipv6(addr, f)?;
+                f.write_str("]")
+            }
+        }
+    }
+}
+
+impl<S, T> PartialEq<Host<T>> for Host<S>
+where
+    S: PartialEq<T>,
+{
+    fn eq(&self, other: &Host<T>) -> bool {
+        match (self, other) {
+            (Host::Domain(a), Host::Domain(b)) => a == b,
+            (Host::Ipv4(a), Host::Ipv4(b)) => a == b,
+            (Host::Ipv6(a), Host::Ipv6(b)) => a == b,
+            (_, _) => false,
+        }
+    }
+}
+
+fn write_ipv6(addr: &Ipv6Addr, f: &mut Formatter<'_>) -> fmt::Result {
+    let segments = addr.segments();
+    let (compress_start, compress_end) = longest_zero_sequence(&segments);
+    let mut i = 0;
+    while i < 8 {
+        if i == compress_start {
+            f.write_str(":")?;
+            if i == 0 {
+                f.write_str(":")?;
+            }
+            if compress_end < 8 {
+                i = compress_end;
+            } else {
+                break;
+            }
+        }
+        write!(f, "{:x}", segments[i as usize])?;
+        if i < 7 {
+            f.write_str(":")?;
+        }
+        i += 1;
+    }
+    Ok(())
+}
+
+// https://url.spec.whatwg.org/#concept-ipv6-serializer step 2 and 3
+fn longest_zero_sequence(pieces: &[u16; 8]) -> (isize, isize) {
+    let mut longest = -1;
+    let mut longest_length = -1;
+    let mut start = -1;
+    macro_rules! finish_sequence(
+        ($end: expr) => {
+            if start >= 0 {
+                let length = $end - start;
+                if length > longest_length {
+                    longest = start;
+                    longest_length = length;
+                }
+            }
+        };
+    );
+    for i in 0..8 {
+        if pieces[i as usize] == 0 {
+            if start < 0 {
+                start = i;
+            }
+        } else {
+            finish_sequence!(i);
+            start = -1;
+        }
+    }
+    finish_sequence!(8);
+    // https://url.spec.whatwg.org/#concept-ipv6-serializer
+    // step 3: ignore lone zeroes
+    if longest_length < 2 {
+        (-1, -2)
+    } else {
+        (longest, longest + longest_length)
+    }
+}
+
+/// <https://url.spec.whatwg.org/#ipv4-number-parser>
+fn parse_ipv4number(mut input: &str) -> Result<Option<u32>, ()> {
+    let mut r = 10;
+    if input.starts_with("0x") || input.starts_with("0X") {
+        input = &input[2..];
+        r = 16;
+    } else if input.len() >= 2 && input.starts_with('0') {
+        input = &input[1..];
+        r = 8;
+    }
+
+    // At the moment we can't know the reason why from_str_radix fails
+    // https://github.com/rust-lang/rust/issues/22639
+    // So instead we check if the input looks like a real number and only return
+    // an error when it's an overflow.
+    let valid_number = match r {
+        8 => input.chars().all(|c| ('0'..='7').contains(&c)),
+        10 => input.chars().all(|c| ('0'..='9').contains(&c)),
+        16 => input.chars().all(|c| {
+            ('0'..='9').contains(&c) || ('a'..='f').contains(&c) || ('A'..='F').contains(&c)
+        }),
+        _ => false,
+    };
+
+    if !valid_number {
+        return Ok(None);
+    }
+
+    if input.is_empty() {
+        return Ok(Some(0));
+    }
+    if input.starts_with('+') {
+        return Ok(None);
+    }
+    match u32::from_str_radix(input, r) {
+        Ok(number) => Ok(Some(number)),
+        Err(_) => Err(()),
+    }
+}
+
+/// <https://url.spec.whatwg.org/#concept-ipv4-parser>
+fn parse_ipv4addr(input: &str) -> ParseResult<Option<Ipv4Addr>> {
+    if input.is_empty() {
+        return Ok(None);
+    }
+    let mut parts: Vec<&str> = input.split('.').collect();
+    if parts.last() == Some(&"") {
+        parts.pop();
+    }
+    if parts.len() > 4 {
+        return Ok(None);
+    }
+    let mut numbers: Vec<u32> = Vec::new();
+    let mut overflow = false;
+    for part in parts {
+        if part.is_empty() {
+            return Ok(None);
+        }
+        match parse_ipv4number(part) {
+            Ok(Some(n)) => numbers.push(n),
+            Ok(None) => return Ok(None),
+            Err(()) => overflow = true,
+        };
+    }
+    if overflow {
+        return Err(ParseError::InvalidIpv4Address);
+    }
+    let mut ipv4 = numbers.pop().expect("a non-empty list of numbers");
+    // Equivalent to: ipv4 >= 256 ** (4 − numbers.len())
+    if ipv4 > u32::max_value() >> (8 * numbers.len() as u32) {
+        return Err(ParseError::InvalidIpv4Address);
+    }
+    if numbers.iter().any(|x| *x > 255) {
+        return Err(ParseError::InvalidIpv4Address);
+    }
+    for (counter, n) in numbers.iter().enumerate() {
+        ipv4 += n << (8 * (3 - counter as u32))
+    }
+    Ok(Some(Ipv4Addr::from(ipv4)))
+}
+
+/// <https://url.spec.whatwg.org/#concept-ipv6-parser>
+fn parse_ipv6addr(input: &str) -> ParseResult<Ipv6Addr> {
+    let input = input.as_bytes();
+    let len = input.len();
+    let mut is_ip_v4 = false;
+    let mut pieces = [0, 0, 0, 0, 0, 0, 0, 0];
+    let mut piece_pointer = 0;
+    let mut compress_pointer = None;
+    let mut i = 0;
+
+    if len < 2 {
+        return Err(ParseError::InvalidIpv6Address);
+    }
+
+    if input[0] == b':' {
+        if input[1] != b':' {
+            return Err(ParseError::InvalidIpv6Address);
+        }
+        i = 2;
+        piece_pointer = 1;
+        compress_pointer = Some(1);
+    }
+
+    while i < len {
+        if piece_pointer == 8 {
+            return Err(ParseError::InvalidIpv6Address);
+        }
+        if input[i] == b':' {
+            if compress_pointer.is_some() {
+                return Err(ParseError::InvalidIpv6Address);
+            }
+            i += 1;
+            piece_pointer += 1;
+            compress_pointer = Some(piece_pointer);
+            continue;
+        }
+        let start = i;
+        let end = cmp::min(len, start + 4);
+        let mut value = 0u16;
+        while i < end {
+            match (input[i] as char).to_digit(16) {
+                Some(digit) => {
+                    value = value * 0x10 + digit as u16;
+                    i += 1;
+                }
+                None => break,
+            }
+        }
+        if i < len {
+            match input[i] {
+                b'.' => {
+                    if i == start {
+                        return Err(ParseError::InvalidIpv6Address);
+                    }
+                    i = start;
+                    if piece_pointer > 6 {
+                        return Err(ParseError::InvalidIpv6Address);
+                    }
+                    is_ip_v4 = true;
+                }
+                b':' => {
+                    i += 1;
+                    if i == len {
+                        return Err(ParseError::InvalidIpv6Address);
+                    }
+                }
+                _ => return Err(ParseError::InvalidIpv6Address),
+            }
+        }
+        if is_ip_v4 {
+            break;
+        }
+        pieces[piece_pointer] = value;
+        piece_pointer += 1;
+    }
+
+    if is_ip_v4 {
+        if piece_pointer > 6 {
+            return Err(ParseError::InvalidIpv6Address);
+        }
+        let mut numbers_seen = 0;
+        while i < len {
+            if numbers_seen > 0 {
+                if numbers_seen < 4 && (i < len && input[i] == b'.') {
+                    i += 1
+                } else {
+                    return Err(ParseError::InvalidIpv6Address);
+                }
+            }
+
+            let mut ipv4_piece = None;
+            while i < len {
+                let digit = match input[i] {
+                    c @ b'0'..=b'9' => c - b'0',
+                    _ => break,
+                };
+                match ipv4_piece {
+                    None => ipv4_piece = Some(digit as u16),
+                    Some(0) => return Err(ParseError::InvalidIpv6Address), // No leading zero
+                    Some(ref mut v) => {
+                        *v = *v * 10 + digit as u16;
+                        if *v > 255 {
+                            return Err(ParseError::InvalidIpv6Address);
+                        }
+                    }
+                }
+                i += 1;
+            }
+
+            pieces[piece_pointer] = if let Some(v) = ipv4_piece {
+                pieces[piece_pointer] * 0x100 + v
+            } else {
+                return Err(ParseError::InvalidIpv6Address);
+            };
+            numbers_seen += 1;
+
+            if numbers_seen == 2 || numbers_seen == 4 {
+                piece_pointer += 1;
+            }
+        }
+
+        if numbers_seen != 4 {
+            return Err(ParseError::InvalidIpv6Address);
+        }
+    }
+
+    if i < len {
+        return Err(ParseError::InvalidIpv6Address);
+    }
+
+    match compress_pointer {
+        Some(compress_pointer) => {
+            let mut swaps = piece_pointer - compress_pointer;
+            piece_pointer = 7;
+            while swaps > 0 {
+                pieces.swap(piece_pointer, compress_pointer + swaps - 1);
+                swaps -= 1;
+                piece_pointer -= 1;
+            }
+        }
+        _ => {
+            if piece_pointer != 8 {
+                return Err(ParseError::InvalidIpv6Address);
+            }
+        }
+    }
+    Ok(Ipv6Addr::new(
+        pieces[0], pieces[1], pieces[2], pieces[3], pieces[4], pieces[5], pieces[6], pieces[7],
+    ))
+}

zeroidc/vendor/url/src/origin.rs

@@ -0,0 +1,113 @@
+// Copyright 2016 The rust-url developers.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+use crate::host::Host;
+use crate::parser::default_port;
+use crate::Url;
+use idna::domain_to_unicode;
+use std::sync::atomic::{AtomicUsize, Ordering};
+
+pub fn url_origin(url: &Url) -> Origin {
+    let scheme = url.scheme();
+    match scheme {
+        "blob" => {
+            let result = Url::parse(url.path());
+            match result {
+                Ok(ref url) => url_origin(url),
+                Err(_) => Origin::new_opaque(),
+            }
+        }
+        "ftp" | "http" | "https" | "ws" | "wss" => Origin::Tuple(
+            scheme.to_owned(),
+            url.host().unwrap().to_owned(),
+            url.port_or_known_default().unwrap(),
+        ),
+        // TODO: Figure out what to do if the scheme is a file
+        "file" => Origin::new_opaque(),
+        _ => Origin::new_opaque(),
+    }
+}
+
+/// The origin of an URL
+///
+/// Two URLs with the same origin are considered
+/// to originate from the same entity and can therefore trust
+/// each other.
+///
+/// The origin is determined based on the scheme as follows:
+///
+/// - If the scheme is "blob" the origin is the origin of the
+///   URL contained in the path component. If parsing fails,
+///   it is an opaque origin.
+/// - If the scheme is "ftp", "http", "https", "ws", or "wss",
+///   then the origin is a tuple of the scheme, host, and port.
+/// - If the scheme is anything else, the origin is opaque, meaning
+///   the URL does not have the same origin as any other URL.
+///
+/// For more information see <https://url.spec.whatwg.org/#origin>
+#[derive(PartialEq, Eq, Hash, Clone, Debug)]
+pub enum Origin {
+    /// A globally unique identifier
+    Opaque(OpaqueOrigin),
+
+    /// Consists of the URL's scheme, host and port
+    Tuple(String, Host<String>, u16),
+}
+
+impl Origin {
+    /// Creates a new opaque origin that is only equal to itself.
+    pub fn new_opaque() -> Origin {
+        static COUNTER: AtomicUsize = AtomicUsize::new(0);
+        Origin::Opaque(OpaqueOrigin(COUNTER.fetch_add(1, Ordering::SeqCst)))
+    }
+
+    /// Return whether this origin is a (scheme, host, port) tuple
+    /// (as opposed to an opaque origin).
+    pub fn is_tuple(&self) -> bool {
+        matches!(*self, Origin::Tuple(..))
+    }
+
+    /// <https://html.spec.whatwg.org/multipage/#ascii-serialisation-of-an-origin>
+    pub fn ascii_serialization(&self) -> String {
+        match *self {
+            Origin::Opaque(_) => "null".to_owned(),
+            Origin::Tuple(ref scheme, ref host, port) => {
+                if default_port(scheme) == Some(port) {
+                    format!("{}://{}", scheme, host)
+                } else {
+                    format!("{}://{}:{}", scheme, host, port)
+                }
+            }
+        }
+    }
+
+    /// <https://html.spec.whatwg.org/multipage/#unicode-serialisation-of-an-origin>
+    pub fn unicode_serialization(&self) -> String {
+        match *self {
+            Origin::Opaque(_) => "null".to_owned(),
+            Origin::Tuple(ref scheme, ref host, port) => {
+                let host = match *host {
+                    Host::Domain(ref domain) => {
+                        let (domain, _errors) = domain_to_unicode(domain);
+                        Host::Domain(domain)
+                    }
+                    _ => host.clone(),
+                };
+                if default_port(scheme) == Some(port) {
+                    format!("{}://{}", scheme, host)
+                } else {
+                    format!("{}://{}:{}", scheme, host, port)
+                }
+            }
+        }
+    }
+}
+
+/// Opaque identifier for URLs that have file or other schemes
+#[derive(Eq, PartialEq, Hash, Clone, Debug)]
+pub struct OpaqueOrigin(usize);

zeroidc/vendor/url/src/path_segments.rs

@@ -0,0 +1,246 @@
+// Copyright 2016 The rust-url developers.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+use crate::parser::{self, to_u32, SchemeType};
+use crate::Url;
+use std::str;
+
+/// Exposes methods to manipulate the path of an URL that is not cannot-be-base.
+///
+/// The path always starts with a `/` slash, and is made of slash-separated segments.
+/// There is always at least one segment (which may be the empty string).
+///
+/// Examples:
+///
+/// ```rust
+/// use url::Url;
+/// # use std::error::Error;
+///
+/// # fn run() -> Result<(), Box<dyn Error>> {
+/// let mut url = Url::parse("mailto:me@example.com")?;
+/// assert!(url.path_segments_mut().is_err());
+///
+/// let mut url = Url::parse("http://example.net/foo/index.html")?;
+/// url.path_segments_mut().map_err(|_| "cannot be base")?
+///     .pop().push("img").push("2/100%.png");
+/// assert_eq!(url.as_str(), "http://example.net/foo/img/2%2F100%25.png");
+/// # Ok(())
+/// # }
+/// # run().unwrap();
+/// ```
+#[derive(Debug)]
+pub struct PathSegmentsMut<'a> {
+    url: &'a mut Url,
+    after_first_slash: usize,
+    after_path: String,
+    old_after_path_position: u32,
+}
+
+// Not re-exported outside the crate
+pub fn new(url: &mut Url) -> PathSegmentsMut<'_> {
+    let after_path = url.take_after_path();
+    let old_after_path_position = to_u32(url.serialization.len()).unwrap();
+    // Special urls always have a non empty path
+    if SchemeType::from(url.scheme()).is_special() {
+        debug_assert!(url.byte_at(url.path_start) == b'/');
+    } else {
+        debug_assert!(
+            url.serialization.len() == url.path_start as usize
+                || url.byte_at(url.path_start) == b'/'
+        );
+    }
+    PathSegmentsMut {
+        after_first_slash: url.path_start as usize + "/".len(),
+        url,
+        old_after_path_position,
+        after_path,
+    }
+}
+
+impl<'a> Drop for PathSegmentsMut<'a> {
+    fn drop(&mut self) {
+        self.url
+            .restore_after_path(self.old_after_path_position, &self.after_path)
+    }
+}
+
+impl<'a> PathSegmentsMut<'a> {
+    /// Remove all segments in the path, leaving the minimal `url.path() == "/"`.
+    ///
+    /// Returns `&mut Self` so that method calls can be chained.
+    ///
+    /// Example:
+    ///
+    /// ```rust
+    /// use url::Url;
+    /// # use std::error::Error;
+    ///
+    /// # fn run() -> Result<(), Box<dyn Error>> {
+    /// let mut url = Url::parse("https://github.com/servo/rust-url/")?;
+    /// url.path_segments_mut().map_err(|_| "cannot be base")?
+    ///     .clear().push("logout");
+    /// assert_eq!(url.as_str(), "https://github.com/logout");
+    /// # Ok(())
+    /// # }
+    /// # run().unwrap();
+    /// ```
+    pub fn clear(&mut self) -> &mut Self {
+        self.url.serialization.truncate(self.after_first_slash);
+        self
+    }
+
+    /// Remove the last segment of this URL’s path if it is empty,
+    /// except if these was only one segment to begin with.
+    ///
+    /// In other words, remove one path trailing slash, if any,
+    /// unless it is also the initial slash (so this does nothing if `url.path() == "/")`.
+    ///
+    /// Returns `&mut Self` so that method calls can be chained.
+    ///
+    /// Example:
+    ///
+    /// ```rust
+    /// use url::Url;
+    /// # use std::error::Error;
+    ///
+    /// # fn run() -> Result<(), Box<dyn Error>> {
+    /// let mut url = Url::parse("https://github.com/servo/rust-url/")?;
+    /// url.path_segments_mut().map_err(|_| "cannot be base")?
+    ///     .push("pulls");
+    /// assert_eq!(url.as_str(), "https://github.com/servo/rust-url//pulls");
+    ///
+    /// let mut url = Url::parse("https://github.com/servo/rust-url/")?;
+    /// url.path_segments_mut().map_err(|_| "cannot be base")?
+    ///     .pop_if_empty().push("pulls");
+    /// assert_eq!(url.as_str(), "https://github.com/servo/rust-url/pulls");
+    /// # Ok(())
+    /// # }
+    /// # run().unwrap();
+    /// ```
+    pub fn pop_if_empty(&mut self) -> &mut Self {
+        if self.after_first_slash >= self.url.serialization.len() {
+            return self;
+        }
+        if self.url.serialization[self.after_first_slash..].ends_with('/') {
+            self.url.serialization.pop();
+        }
+        self
+    }
+
+    /// Remove the last segment of this URL’s path.
+    ///
+    /// If the path only has one segment, make it empty such that `url.path() == "/"`.
+    ///
+    /// Returns `&mut Self` so that method calls can be chained.
+    pub fn pop(&mut self) -> &mut Self {
+        if self.after_first_slash >= self.url.serialization.len() {
+            return self;
+        }
+        let last_slash = self.url.serialization[self.after_first_slash..]
+            .rfind('/')
+            .unwrap_or(0);
+        self.url
+            .serialization
+            .truncate(self.after_first_slash + last_slash);
+        self
+    }
+
+    /// Append the given segment at the end of this URL’s path.
+    ///
+    /// See the documentation for `.extend()`.
+    ///
+    /// Returns `&mut Self` so that method calls can be chained.
+    pub fn push(&mut self, segment: &str) -> &mut Self {
+        self.extend(Some(segment))
+    }
+
+    /// Append each segment from the given iterator at the end of this URL’s path.
+    ///
+    /// Each segment is percent-encoded like in `Url::parse` or `Url::join`,
+    /// except that `%` and `/` characters are also encoded (to `%25` and `%2F`).
+    /// This is unlike `Url::parse` where `%` is left as-is in case some of the input
+    /// is already percent-encoded, and `/` denotes a path segment separator.)
+    ///
+    /// Note that, in addition to slashes between new segments,
+    /// this always adds a slash between the existing path and the new segments
+    /// *except* if the existing path is `"/"`.
+    /// If the previous last segment was empty (if the path had a trailing slash)
+    /// the path after `.extend()` will contain two consecutive slashes.
+    /// If that is undesired, call `.pop_if_empty()` first.
+    ///
+    /// To obtain a behavior similar to `Url::join`, call `.pop()` unconditionally first.
+    ///
+    /// Returns `&mut Self` so that method calls can be chained.
+    ///
+    /// Example:
+    ///
+    /// ```rust
+    /// use url::Url;
+    /// # use std::error::Error;
+    ///
+    /// # fn run() -> Result<(), Box<dyn Error>> {
+    /// let mut url = Url::parse("https://github.com/")?;
+    /// let org = "servo";
+    /// let repo = "rust-url";
+    /// let issue_number = "188";
+    /// url.path_segments_mut().map_err(|_| "cannot be base")?
+    ///     .extend(&[org, repo, "issues", issue_number]);
+    /// assert_eq!(url.as_str(), "https://github.com/servo/rust-url/issues/188");
+    /// # Ok(())
+    /// # }
+    /// # run().unwrap();
+    /// ```
+    ///
+    /// In order to make sure that parsing the serialization of an URL gives the same URL,
+    /// a segment is ignored if it is `"."` or `".."`:
+    ///
+    /// ```rust
+    /// use url::Url;
+    /// # use std::error::Error;
+    ///
+    /// # fn run() -> Result<(), Box<dyn Error>> {
+    /// let mut url = Url::parse("https://github.com/servo")?;
+    /// url.path_segments_mut().map_err(|_| "cannot be base")?
+    ///     .extend(&["..", "rust-url", ".", "pulls"]);
+    /// assert_eq!(url.as_str(), "https://github.com/servo/rust-url/pulls");
+    /// # Ok(())
+    /// # }
+    /// # run().unwrap();
+    /// ```
+    pub fn extend<I>(&mut self, segments: I) -> &mut Self
+    where
+        I: IntoIterator,
+        I::Item: AsRef<str>,
+    {
+        let scheme_type = SchemeType::from(self.url.scheme());
+        let path_start = self.url.path_start as usize;
+        self.url.mutate(|parser| {
+            parser.context = parser::Context::PathSegmentSetter;
+            for segment in segments {
+                let segment = segment.as_ref();
+                if matches!(segment, "." | "..") {
+                    continue;
+                }
+                if parser.serialization.len() > path_start + 1
+                    // Non special url's path might still be empty
+                    || parser.serialization.len() == path_start
+                {
+                    parser.serialization.push('/');
+                }
+                let mut has_host = true; // FIXME account for this?
+                parser.parse_path(
+                    scheme_type,
+                    &mut has_host,
+                    path_start,
+                    parser::Input::new(segment),
+                );
+            }
+        });
+        self
+    }
+}

zeroidc/vendor/url/src/quirks.rs

@@ -0,0 +1,287 @@
+// Copyright 2016 The rust-url developers.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+//! Getters and setters for URL components implemented per https://url.spec.whatwg.org/#api
+//!
+//! Unless you need to be interoperable with web browsers,
+//! you probably want to use `Url` method instead.
+
+use crate::parser::{default_port, Context, Input, Parser, SchemeType};
+use crate::{Host, ParseError, Position, Url};
+
+/// https://url.spec.whatwg.org/#dom-url-domaintoascii
+pub fn domain_to_ascii(domain: &str) -> String {
+    match Host::parse(domain) {
+        Ok(Host::Domain(domain)) => domain,
+        _ => String::new(),
+    }
+}
+
+/// https://url.spec.whatwg.org/#dom-url-domaintounicode
+pub fn domain_to_unicode(domain: &str) -> String {
+    match Host::parse(domain) {
+        Ok(Host::Domain(ref domain)) => {
+            let (unicode, _errors) = idna::domain_to_unicode(domain);
+            unicode
+        }
+        _ => String::new(),
+    }
+}
+
+/// Getter for https://url.spec.whatwg.org/#dom-url-href
+pub fn href(url: &Url) -> &str {
+    url.as_str()
+}
+
+/// Setter for https://url.spec.whatwg.org/#dom-url-href
+pub fn set_href(url: &mut Url, value: &str) -> Result<(), ParseError> {
+    *url = Url::parse(value)?;
+    Ok(())
+}
+
+/// Getter for https://url.spec.whatwg.org/#dom-url-origin
+pub fn origin(url: &Url) -> String {
+    url.origin().ascii_serialization()
+}
+
+/// Getter for https://url.spec.whatwg.org/#dom-url-protocol
+#[inline]
+pub fn protocol(url: &Url) -> &str {
+    &url.as_str()[..url.scheme().len() + ":".len()]
+}
+
+/// Setter for https://url.spec.whatwg.org/#dom-url-protocol
+#[allow(clippy::result_unit_err)]
+pub fn set_protocol(url: &mut Url, mut new_protocol: &str) -> Result<(), ()> {
+    // The scheme state in the spec ignores everything after the first `:`,
+    // but `set_scheme` errors if there is more.
+    if let Some(position) = new_protocol.find(':') {
+        new_protocol = &new_protocol[..position];
+    }
+    url.set_scheme(new_protocol)
+}
+
+/// Getter for https://url.spec.whatwg.org/#dom-url-username
+#[inline]
+pub fn username(url: &Url) -> &str {
+    url.username()
+}
+
+/// Setter for https://url.spec.whatwg.org/#dom-url-username
+#[allow(clippy::result_unit_err)]
+pub fn set_username(url: &mut Url, new_username: &str) -> Result<(), ()> {
+    url.set_username(new_username)
+}
+
+/// Getter for https://url.spec.whatwg.org/#dom-url-password
+#[inline]
+pub fn password(url: &Url) -> &str {
+    url.password().unwrap_or("")
+}
+
+/// Setter for https://url.spec.whatwg.org/#dom-url-password
+#[allow(clippy::result_unit_err)]
+pub fn set_password(url: &mut Url, new_password: &str) -> Result<(), ()> {
+    url.set_password(if new_password.is_empty() {
+        None
+    } else {
+        Some(new_password)
+    })
+}
+
+/// Getter for https://url.spec.whatwg.org/#dom-url-host
+#[inline]
+pub fn host(url: &Url) -> &str {
+    &url[Position::BeforeHost..Position::AfterPort]
+}
+
+/// Setter for https://url.spec.whatwg.org/#dom-url-host
+#[allow(clippy::result_unit_err)]
+pub fn set_host(url: &mut Url, new_host: &str) -> Result<(), ()> {
+    // If context object’s url’s cannot-be-a-base-URL flag is set, then return.
+    if url.cannot_be_a_base() {
+        return Err(());
+    }
+    // Host parsing rules are strict,
+    // We don't want to trim the input
+    let input = Input::no_trim(new_host);
+    let host;
+    let opt_port;
+    {
+        let scheme = url.scheme();
+        let scheme_type = SchemeType::from(scheme);
+        if scheme_type == SchemeType::File && new_host.is_empty() {
+            url.set_host_internal(Host::Domain(String::new()), None);
+            return Ok(());
+        }
+
+        if let Ok((h, remaining)) = Parser::parse_host(input, scheme_type) {
+            host = h;
+            opt_port = if let Some(remaining) = remaining.split_prefix(':') {
+                if remaining.is_empty() {
+                    None
+                } else {
+                    Parser::parse_port(remaining, || default_port(scheme), Context::Setter)
+                        .ok()
+                        .map(|(port, _remaining)| port)
+                }
+            } else {
+                None
+            };
+        } else {
+            return Err(());
+        }
+    }
+    // Make sure we won't set an empty host to a url with a username or a port
+    if host == Host::Domain("".to_string()) {
+        if !username(&url).is_empty() {
+            return Err(());
+        } else if let Some(Some(_)) = opt_port {
+            return Err(());
+        } else if url.port().is_some() {
+            return Err(());
+        }
+    }
+    url.set_host_internal(host, opt_port);
+    Ok(())
+}
+
+/// Getter for https://url.spec.whatwg.org/#dom-url-hostname
+#[inline]
+pub fn hostname(url: &Url) -> &str {
+    url.host_str().unwrap_or("")
+}
+
+/// Setter for https://url.spec.whatwg.org/#dom-url-hostname
+#[allow(clippy::result_unit_err)]
+pub fn set_hostname(url: &mut Url, new_hostname: &str) -> Result<(), ()> {
+    if url.cannot_be_a_base() {
+        return Err(());
+    }
+    // Host parsing rules are strict we don't want to trim the input
+    let input = Input::no_trim(new_hostname);
+    let scheme_type = SchemeType::from(url.scheme());
+    if scheme_type == SchemeType::File && new_hostname.is_empty() {
+        url.set_host_internal(Host::Domain(String::new()), None);
+        return Ok(());
+    }
+
+    if let Ok((host, _remaining)) = Parser::parse_host(input, scheme_type) {
+        if let Host::Domain(h) = &host {
+            if h.is_empty() {
+                // Empty host on special not file url
+                if SchemeType::from(url.scheme()) == SchemeType::SpecialNotFile
+                    // Port with an empty host
+                    ||!port(&url).is_empty()
+                    // Empty host that includes credentials
+                    || !url.username().is_empty()
+                    || !url.password().unwrap_or(&"").is_empty()
+                {
+                    return Err(());
+                }
+            }
+        }
+        url.set_host_internal(host, None);
+        Ok(())
+    } else {
+        Err(())
+    }
+}
+
+/// Getter for https://url.spec.whatwg.org/#dom-url-port
+#[inline]
+pub fn port(url: &Url) -> &str {
+    &url[Position::BeforePort..Position::AfterPort]
+}
+
+/// Setter for https://url.spec.whatwg.org/#dom-url-port
+#[allow(clippy::result_unit_err)]
+pub fn set_port(url: &mut Url, new_port: &str) -> Result<(), ()> {
+    let result;
+    {
+        // has_host implies !cannot_be_a_base
+        let scheme = url.scheme();
+        if !url.has_host() || url.host() == Some(Host::Domain("")) || scheme == "file" {
+            return Err(());
+        }
+        result = Parser::parse_port(
+            Input::new(new_port),
+            || default_port(scheme),
+            Context::Setter,
+        )
+    }
+    if let Ok((new_port, _remaining)) = result {
+        url.set_port_internal(new_port);
+        Ok(())
+    } else {
+        Err(())
+    }
+}
+
+/// Getter for https://url.spec.whatwg.org/#dom-url-pathname
+#[inline]
+pub fn pathname(url: &Url) -> &str {
+    url.path()
+}
+
+/// Setter for https://url.spec.whatwg.org/#dom-url-pathname
+pub fn set_pathname(url: &mut Url, new_pathname: &str) {
+    if url.cannot_be_a_base() {
+        return;
+    }
+    if new_pathname.starts_with('/')
+        || (SchemeType::from(url.scheme()).is_special()
+            // \ is a segment delimiter for 'special' URLs"
+            && new_pathname.starts_with('\\'))
+    {
+        url.set_path(new_pathname)
+    } else {
+        let mut path_to_set = String::from("/");
+        path_to_set.push_str(new_pathname);
+        url.set_path(&path_to_set)
+    }
+}
+
+/// Getter for https://url.spec.whatwg.org/#dom-url-search
+pub fn search(url: &Url) -> &str {
+    trim(&url[Position::AfterPath..Position::AfterQuery])
+}
+
+/// Setter for https://url.spec.whatwg.org/#dom-url-search
+pub fn set_search(url: &mut Url, new_search: &str) {
+    url.set_query(match new_search {
+        "" => None,
+        _ if new_search.starts_with('?') => Some(&new_search[1..]),
+        _ => Some(new_search),
+    })
+}
+
+/// Getter for https://url.spec.whatwg.org/#dom-url-hash
+pub fn hash(url: &Url) -> &str {
+    trim(&url[Position::AfterQuery..])
+}
+
+/// Setter for https://url.spec.whatwg.org/#dom-url-hash
+pub fn set_hash(url: &mut Url, new_hash: &str) {
+    url.set_fragment(match new_hash {
+        // If the given value is the empty string,
+        // then set context object’s url’s fragment to null and return.
+        "" => None,
+        // Let input be the given value with a single leading U+0023 (#) removed, if any.
+        _ if new_hash.starts_with('#') => Some(&new_hash[1..]),
+        _ => Some(new_hash),
+    })
+}
+
+fn trim(s: &str) -> &str {
+    if s.len() == 1 {
+        ""
+    } else {
+        s
+    }
+}

zeroidc/vendor/url/src/slicing.rs

@@ -0,0 +1,187 @@
+// Copyright 2016 The rust-url developers.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+use crate::Url;
+use std::ops::{Index, Range, RangeFrom, RangeFull, RangeTo};
+
+impl Index<RangeFull> for Url {
+    type Output = str;
+    fn index(&self, _: RangeFull) -> &str {
+        &self.serialization
+    }
+}
+
+impl Index<RangeFrom<Position>> for Url {
+    type Output = str;
+    fn index(&self, range: RangeFrom<Position>) -> &str {
+        &self.serialization[self.index(range.start)..]
+    }
+}
+
+impl Index<RangeTo<Position>> for Url {
+    type Output = str;
+    fn index(&self, range: RangeTo<Position>) -> &str {
+        &self.serialization[..self.index(range.end)]
+    }
+}
+
+impl Index<Range<Position>> for Url {
+    type Output = str;
+    fn index(&self, range: Range<Position>) -> &str {
+        &self.serialization[self.index(range.start)..self.index(range.end)]
+    }
+}
+
+/// Indicates a position within a URL based on its components.
+///
+/// A range of positions can be used for slicing `Url`:
+///
+/// ```rust
+/// # use url::{Url, Position};
+/// # fn something(some_url: Url) {
+/// let serialization: &str = &some_url[..];
+/// let serialization_without_fragment: &str = &some_url[..Position::AfterQuery];
+/// let authority: &str = &some_url[Position::BeforeUsername..Position::AfterPort];
+/// let data_url_payload: &str = &some_url[Position::BeforePath..Position::AfterQuery];
+/// let scheme_relative: &str = &some_url[Position::BeforeUsername..];
+/// # }
+/// ```
+///
+/// In a pseudo-grammar (where `[`…`]?` makes a sub-sequence optional),
+/// URL components and delimiters that separate them are:
+///
+/// ```notrust
+/// url =
+///     scheme ":"
+///     [ "//" [ username [ ":" password ]? "@" ]? host [ ":" port ]? ]?
+///     path [ "?" query ]? [ "#" fragment ]?
+/// ```
+///
+/// When a given component is not present,
+/// its "before" and "after" position are the same
+/// (so that `&some_url[BeforeFoo..AfterFoo]` is the empty string)
+/// and component ordering is preserved
+/// (so that a missing query "is between" a path and a fragment).
+///
+/// The end of a component and the start of the next are either the same or separate
+/// by a delimiter.
+/// (Not that the initial `/` of a path is considered part of the path here, not a delimiter.)
+/// For example, `&url[..BeforeFragment]` would include a `#` delimiter (if present in `url`),
+/// so `&url[..AfterQuery]` might be desired instead.
+///
+/// `BeforeScheme` and `AfterFragment` are always the start and end of the entire URL,
+/// so `&url[BeforeScheme..X]` is the same as `&url[..X]`
+/// and `&url[X..AfterFragment]` is the same as `&url[X..]`.
+#[derive(Copy, Clone, Debug)]
+pub enum Position {
+    BeforeScheme,
+    AfterScheme,
+    BeforeUsername,
+    AfterUsername,
+    BeforePassword,
+    AfterPassword,
+    BeforeHost,
+    AfterHost,
+    BeforePort,
+    AfterPort,
+    BeforePath,
+    AfterPath,
+    BeforeQuery,
+    AfterQuery,
+    BeforeFragment,
+    AfterFragment,
+}
+
+impl Url {
+    #[inline]
+    fn index(&self, position: Position) -> usize {
+        match position {
+            Position::BeforeScheme => 0,
+
+            Position::AfterScheme => self.scheme_end as usize,
+
+            Position::BeforeUsername => {
+                if self.has_authority() {
+                    self.scheme_end as usize + "://".len()
+                } else {
+                    debug_assert!(self.byte_at(self.scheme_end) == b':');
+                    debug_assert!(self.scheme_end + ":".len() as u32 == self.username_end);
+                    self.scheme_end as usize + ":".len()
+                }
+            }
+
+            Position::AfterUsername => self.username_end as usize,
+
+            Position::BeforePassword => {
+                if self.has_authority() && self.byte_at(self.username_end) == b':' {
+                    self.username_end as usize + ":".len()
+                } else {
+                    debug_assert!(self.username_end == self.host_start);
+                    self.username_end as usize
+                }
+            }
+
+            Position::AfterPassword => {
+                if self.has_authority() && self.byte_at(self.username_end) == b':' {
+                    debug_assert!(self.byte_at(self.host_start - "@".len() as u32) == b'@');
+                    self.host_start as usize - "@".len()
+                } else {
+                    debug_assert!(self.username_end == self.host_start);
+                    self.host_start as usize
+                }
+            }
+
+            Position::BeforeHost => self.host_start as usize,
+
+            Position::AfterHost => self.host_end as usize,
+
+            Position::BeforePort => {
+                if self.port.is_some() {
+                    debug_assert!(self.byte_at(self.host_end) == b':');
+                    self.host_end as usize + ":".len()
+                } else {
+                    self.host_end as usize
+                }
+            }
+
+            Position::AfterPort => self.path_start as usize,
+
+            Position::BeforePath => self.path_start as usize,
+
+            Position::AfterPath => match (self.query_start, self.fragment_start) {
+                (Some(q), _) => q as usize,
+                (None, Some(f)) => f as usize,
+                (None, None) => self.serialization.len(),
+            },
+
+            Position::BeforeQuery => match (self.query_start, self.fragment_start) {
+                (Some(q), _) => {
+                    debug_assert!(self.byte_at(q) == b'?');
+                    q as usize + "?".len()
+                }
+                (None, Some(f)) => f as usize,
+                (None, None) => self.serialization.len(),
+            },
+
+            Position::AfterQuery => match self.fragment_start {
+                None => self.serialization.len(),
+                Some(f) => f as usize,
+            },
+
+            Position::BeforeFragment => match self.fragment_start {
+                Some(f) => {
+                    debug_assert!(self.byte_at(f) == b'#');
+                    f as usize + "#".len()
+                }
+                None => self.serialization.len(),
+            },
+
+            Position::AfterFragment => self.serialization.len(),
+        }
+    }
+}