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|
//! URI parsing and manipulation.
use crate::pool::Pool;
pub use apr_sys::apr_uri_t;
use std::ffi::CStr;
use std::marker::PhantomData;
/// A structure to represent a URI.
#[derive(Debug)]
pub struct Uri<'pool> {
ptr: *mut apr_uri_t,
_pool: PhantomData<&'pool Pool>,
}
impl<'pool> Uri<'pool> {
/// Return the scheme of the URI.
pub fn scheme(&self) -> Option<&str> {
unsafe {
if (*self.ptr).scheme.is_null() {
None
} else {
Some(CStr::from_ptr((*self.ptr).scheme).to_str().unwrap())
}
}
}
/// Return the hostinfo of the URI.
pub fn hostinfo(&self) -> Option<&str> {
unsafe {
if (*self.ptr).hostinfo.is_null() {
None
} else {
Some(CStr::from_ptr((*self.ptr).hostinfo).to_str().unwrap())
}
}
}
/// Return the username of the URI.
pub fn user(&self) -> Option<&str> {
unsafe {
if (*self.ptr).user.is_null() {
None
} else {
Some(CStr::from_ptr((*self.ptr).user).to_str().unwrap())
}
}
}
/// Return the password of the URI.
pub fn password(&self) -> Option<&str> {
unsafe {
if (*self.ptr).password.is_null() {
None
} else {
Some(CStr::from_ptr((*self.ptr).password).to_str().unwrap())
}
}
}
/// Return the hostname of the URI.
pub fn hostname(&self) -> Option<&str> {
unsafe {
if (*self.ptr).hostname.is_null() {
None
} else {
Some(CStr::from_ptr((*self.ptr).hostname).to_str().unwrap())
}
}
}
/// Return the port of the URI.
pub fn port(&self) -> u16 {
unsafe { (*self.ptr).port }
}
/// Return the path of the URI.
pub fn path(&self) -> Option<&str> {
unsafe {
if (*self.ptr).path.is_null() {
None
} else {
Some(CStr::from_ptr((*self.ptr).path).to_str().unwrap())
}
}
}
/// Return the query of the URI.
pub fn query(&self) -> Option<&str> {
unsafe {
if (*self.ptr).query.is_null() {
None
} else {
Some(CStr::from_ptr((*self.ptr).query).to_str().unwrap())
}
}
}
/// Return the fragment of the URI.
pub fn fragment(&self) -> Option<&str> {
unsafe {
if (*self.ptr).fragment.is_null() {
None
} else {
Some(CStr::from_ptr((*self.ptr).fragment).to_str().unwrap())
}
}
}
/// Return the port as a string
pub fn port_str(&self) -> Option<&str> {
unsafe {
if (*self.ptr).port_str.is_null() {
None
} else {
Some(CStr::from_ptr((*self.ptr).port_str).to_str().unwrap())
}
}
}
/// Return whether the URI has been initialized.
pub fn is_initialized(&self) -> bool {
unsafe { (*self.ptr).is_initialized() != 0 }
}
/// Return whether the DNS has been looked up.
pub fn dns_looked_up(&self) -> bool {
unsafe { (*self.ptr).dns_looked_up() != 0 }
}
/// Return whether the DNS has been resolved.
pub fn dns_resolved(&self) -> bool {
unsafe { (*self.ptr).dns_resolved() != 0 }
}
/// Unparse the URI, returning a string.
pub fn unparse(&self, flags: u32) -> String {
let pool = crate::Pool::new();
unsafe {
CStr::from_ptr(apr_sys::apr_uri_unparse(pool.as_mut_ptr(), self.ptr, flags))
.to_str()
.unwrap()
}
.to_string()
}
/// Parse a hostinfo string.
pub fn parse_hostinfo(pool: &'pool Pool, hostinfo: &str) -> Result<Self, crate::Status> {
let uri = pool.calloc::<apr_uri_t>();
let hostinfo = std::ffi::CString::new(hostinfo).unwrap();
let status = unsafe {
apr_sys::apr_uri_parse_hostinfo(
pool.as_mut_ptr(),
hostinfo.as_ptr() as *const std::ffi::c_char,
uri,
)
};
let status = crate::Status::from(status);
if status.is_success() {
Ok(Uri {
ptr: uri,
_pool: PhantomData,
})
} else {
Err(status)
}
}
/// Parse a URI string.
pub fn parse(pool: &'pool Pool, url: &str) -> Result<Self, crate::Status> {
let uri = pool.calloc::<apr_uri_t>();
let url = std::ffi::CString::new(url).unwrap();
let status = unsafe {
apr_sys::apr_uri_parse(
pool.as_mut_ptr(),
url.as_ptr() as *const std::ffi::c_char,
uri,
)
};
let status = crate::Status::from(status);
if status.is_success() {
Ok(Uri {
ptr: uri,
_pool: PhantomData,
})
} else {
Err(status)
}
}
/// Get a raw pointer to the underlying apr_uri_t
pub fn as_ptr(&self) -> *const apr_uri_t {
self.ptr
}
/// Get a mutable raw pointer to the underlying apr_uri_t
///
/// # Safety
///
/// The caller must ensure that any modifications made through the returned
/// pointer are valid and do not violate APR's invariants.
pub unsafe fn as_mut_ptr(&mut self) -> *mut apr_uri_t {
self.ptr
}
}
// Add Display implementation
impl<'pool> std::fmt::Display for Uri<'pool> {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
write!(f, "{}", self.unparse(0))
}
}
// Add PartialEq implementation
impl<'pool> PartialEq for Uri<'pool> {
fn eq(&self, other: &Self) -> bool {
self.unparse(0) == other.unparse(0)
}
}
// Add AsRef implementations for easy access to string parts
impl<'pool> AsRef<str> for Uri<'pool> {
fn as_ref(&self) -> &str {
self.scheme().unwrap_or("")
}
}
/// Return the default port for a given scheme.
pub fn port_of_scheme(scheme: &str) -> u16 {
let scheme = std::ffi::CString::new(scheme).unwrap();
unsafe { apr_sys::apr_uri_port_of_scheme(scheme.as_ptr() as *const std::ffi::c_char) }
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_port_of_scheme() {
assert_eq!(80, super::port_of_scheme("http"));
assert_eq!(443, super::port_of_scheme("https"));
assert_eq!(0, super::port_of_scheme("unknown"));
}
#[test]
fn test_parse() {
let pool = Pool::new();
let uri = super::Uri::parse(&pool, "http://example.com:8080/").unwrap();
assert_eq!("http", uri.scheme().unwrap());
assert_eq!(Some("example.com:8080"), uri.hostinfo());
assert_eq!(Some("example.com"), uri.hostname());
assert_eq!(8080, uri.port());
assert_eq!(Some("/"), uri.path());
assert_eq!(None, uri.query());
assert_eq!(None, uri.fragment());
assert_eq!(Some("8080"), uri.port_str());
assert!(uri.is_initialized());
assert!(!uri.dns_looked_up());
assert!(!uri.dns_resolved());
}
#[test]
fn test_parse_hostinfo() {
let pool = Pool::new();
let uri = super::Uri::parse_hostinfo(&pool, "example.com:8080").unwrap();
assert_eq!(None, uri.scheme());
assert_eq!(Some("example.com:8080"), uri.hostinfo());
assert_eq!(Some("example.com"), uri.hostname());
assert_eq!(8080, uri.port());
assert_eq!(None, uri.path());
assert_eq!(None, uri.query());
assert_eq!(None, uri.fragment());
assert_eq!(Some("8080"), uri.port_str());
assert!(uri.is_initialized());
assert!(!uri.dns_looked_up());
assert!(!uri.dns_resolved());
}
}
// TODO(jelmer): Rather than serializing/deserializing, we should be able to just copy the fields
// over.
// Note: This impl cannot work without a pool parameter, so it's commented out
// #[cfg(feature = "url")]
// impl From<url::Url> for Uri {
// fn from(url: url::Url) -> Self {
// let s = url.as_str();
// Self::parse(s).unwrap()
// }
// }
#[cfg(feature = "url")]
impl<'a> From<Uri<'a>> for url::Url {
fn from(uri: Uri<'a>) -> Self {
let s = uri.unparse(0);
url::Url::parse(&s).unwrap()
}
}
|
