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1 |
| -mod binding; |
| 1 | +use std::{ptr, mem}; |
| 2 | +use thiserror::Error; |
| 3 | + |
| 4 | +pub mod ffi { |
| 5 | + use std::ffi::c_char; |
| 6 | + |
| 7 | + #[repr(C)] |
| 8 | + pub struct ada_url { |
| 9 | + _unused: [u8; 0], |
| 10 | + _marker: core::marker::PhantomData<(*mut u8, core::marker::PhantomPinned)>, |
| 11 | + } |
| 12 | + |
| 13 | + #[repr(C)] |
| 14 | + pub struct ada_string { |
| 15 | + pub data: *const c_char, |
| 16 | + pub length: usize, |
| 17 | + } |
| 18 | + |
| 19 | + impl AsRef<str> for ada_string { |
| 20 | + fn as_ref(&self) -> &str { |
| 21 | + unsafe { |
| 22 | + let slice = std::slice::from_raw_parts(self.data.cast(), self.length); |
| 23 | + std::str::from_utf8_unchecked(slice) |
| 24 | + } |
| 25 | + } |
| 26 | + } |
| 27 | + |
| 28 | + #[repr(C)] |
| 29 | + pub struct ada_owned_string { |
| 30 | + pub data: *const c_char, |
| 31 | + pub length: usize, |
| 32 | + } |
| 33 | + |
| 34 | + impl AsRef<str> for ada_owned_string { |
| 35 | + fn as_ref(&self) -> &str { |
| 36 | + unsafe { |
| 37 | + let slice = std::slice::from_raw_parts(self.data.cast(), self.length); |
| 38 | + std::str::from_utf8_unchecked(slice) |
| 39 | + } |
| 40 | + } |
| 41 | + } |
| 42 | + |
| 43 | + #[repr(C)] |
| 44 | + pub struct url_components { |
| 45 | + pub protocol_end: u32, |
| 46 | + pub username_end: u32, |
| 47 | + pub host_start: u32, |
| 48 | + pub host_end: u32, |
| 49 | + pub port: u32, |
| 50 | + pub pathname_start: u32, |
| 51 | + pub search_start: u32, |
| 52 | + pub hash_start: u32, |
| 53 | + } |
| 54 | + |
| 55 | + extern "C" { |
| 56 | + pub fn ada_parse(url: *const c_char) -> ada_url; |
| 57 | + pub fn ada_free(url: *mut ada_url); |
| 58 | + pub fn ada_free_owned_string(url: *mut ada_owned_string); |
| 59 | + pub fn ada_is_valid(url: *mut ada_url) -> bool; |
| 60 | + pub fn ada_can_parse(url: *const c_char, base: *const c_char) -> bool; |
| 61 | + pub fn ada_get_origin(url: *mut ada_url) -> ada_owned_string; |
| 62 | + pub fn ada_get_href(url: *mut ada_url) -> ada_string; |
| 63 | + pub fn ada_get_username(url: *mut ada_url) -> ada_string; |
| 64 | + pub fn ada_get_password(url: *mut ada_url) -> ada_string; |
| 65 | + pub fn ada_get_port(url: *mut ada_url) -> ada_string; |
| 66 | + pub fn ada_get_hash(url: *mut ada_url) -> ada_string; |
| 67 | + pub fn ada_get_host(url: *mut ada_url) -> ada_string; |
| 68 | + pub fn ada_get_hostname(url: *mut ada_url) -> ada_string; |
| 69 | + pub fn ada_get_pathname(url: *mut ada_url) -> ada_string; |
| 70 | + pub fn ada_get_search(url: *mut ada_url) -> ada_string; |
| 71 | + pub fn ada_get_protocol(url: *mut ada_url) -> ada_string; |
| 72 | + } |
| 73 | +} |
| 74 | + |
| 75 | +#[derive(Error, Debug)] |
| 76 | +pub enum Error { |
| 77 | + #[error("Invalid url: \"{0}\"")] |
| 78 | + ParseUrl(String), |
| 79 | +} |
| 80 | + |
| 81 | +pub struct Url { |
| 82 | + origin: Option<*mut ffi::ada_owned_string>, |
| 83 | + url: *mut ffi::ada_url, |
| 84 | +} |
| 85 | + |
| 86 | +impl Drop for Url { |
| 87 | + fn drop(&mut self) { |
| 88 | + unsafe { |
| 89 | + if let Some(origin) = self.origin { |
| 90 | + ffi::ada_free_owned_string(origin); |
| 91 | + } |
| 92 | + ffi::ada_free(self.url); |
| 93 | + } |
| 94 | + } |
| 95 | +} |
| 96 | + |
| 97 | +impl Url { |
| 98 | + pub fn can_parse(input: &str, base: Option<&str>) -> bool { |
| 99 | + unsafe { |
| 100 | + ffi::ada_can_parse( |
| 101 | + input.as_ptr().cast(), |
| 102 | + base.unwrap_or_else(ptr::null()).as_ptr().cast(), |
| 103 | + ) |
| 104 | + } |
| 105 | + } |
| 106 | + |
| 107 | + pub fn origin(&mut self) -> &str { |
| 108 | + unsafe { |
| 109 | + self.origin = ffi::ada_get_origin(self.url); |
| 110 | + return self.origin.as_ref(); |
| 111 | + } |
| 112 | + } |
| 113 | + |
| 114 | + pub fn href(&self) -> &str { |
| 115 | + unsafe { ffi::ada_get_href(self.url).as_ref() } |
| 116 | + } |
| 117 | + |
| 118 | + pub fn username(&self) -> &str { |
| 119 | + unsafe { ffi::ada_get_username(self.url).as_ref() } |
| 120 | + } |
| 121 | + |
| 122 | + pub fn password(&self) -> &str { |
| 123 | + unsafe { ffi::ada_get_password(self.url).as_ref() } |
| 124 | + } |
| 125 | + |
| 126 | + pub fn port(&self) -> &str { |
| 127 | + unsafe { ffi::ada_get_port(self.url).as_ref() } |
| 128 | + } |
| 129 | + |
| 130 | + pub fn hash(&self) -> &str { |
| 131 | + unsafe { ffi::ada_get_hash(self.url).as_ref() } |
| 132 | + } |
| 133 | + |
| 134 | + pub fn host(&self) -> &str { |
| 135 | + unsafe { ffi::ada_get_host(self.url).as_ref() } |
| 136 | + } |
| 137 | + |
| 138 | + pub fn hostname(&self) -> &str { |
| 139 | + unsafe { ffi::ada_get_hostname(self.url).as_ref() } |
| 140 | + } |
| 141 | + |
| 142 | + pub fn pathname(&self) -> &str { |
| 143 | + unsafe { ffi::ada_get_pathname(self.url).as_ref() } |
| 144 | + } |
| 145 | + |
| 146 | + pub fn search(&self) -> &str { |
| 147 | + unsafe { ffi::ada_get_search(self.url).as_ref() } |
| 148 | + } |
| 149 | + |
| 150 | + pub fn protocol(&self) -> &str { |
| 151 | + unsafe { ffi::ada_get_protocol(self.url).as_ref() } |
| 152 | + } |
| 153 | +} |
| 154 | + |
| 155 | +pub fn parse<U: AsRef<str>>(url: U) -> Result<Url, Error> { |
| 156 | + unsafe { |
| 157 | + let url_aggregator = ffi::ada_parse(url.as_ref().as_ptr().cast()); |
| 158 | + |
| 159 | + if ffi::ada_is_valid(url_aggregator) { |
| 160 | + Ok(Url { |
| 161 | + origin: None, |
| 162 | + url: url_aggregator, |
| 163 | + }) |
| 164 | + } else { |
| 165 | + Err(Error::ParseUrl(url.as_ref().to_owned())) |
| 166 | + } |
| 167 | + } |
| 168 | +} |
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