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Quelle lib.rs
Sprache: unbekannt
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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
extern crate bhttp;
extern crate nserror;
extern crate nsstring;
extern crate thin_vec;
#[macro_use]
extern crate xpcom;
use bhttp::{Message, Mode};
use nserror::{nsresult, NS_ERROR_FAILURE, NS_ERROR_INVALID_ARG, NS_ERROR_UNEXPECTED, NS_OK};
use nsstring::{nsACString, nsCString};
use std::io::Cursor;
use thin_vec::ThinVec;
use xpcom::interfaces::{nsIBinaryHttpRequest, nsIBinaryHttpResponse};
use xpcom::RefPtr;
enum HeaderComponent {
Name,
Value,
}
// Extracts either the names or the values of a slice of header (name, value) pairs.
fn extract_header_components(
headers: &[(Vec<u8>, Vec<u8>)],
component: HeaderComponent,
) -> ThinVec<nsCString> {
let mut header_components = ThinVec::with_capacity(headers.len());
for (name, value) in headers {
match component {
HeaderComponent::Name => header_components.push(nsCString::from(name.clone())),
HeaderComponent::Value => header_components.push(nsCString::from(value.clone())),
}
}
header_components
}
#[xpcom(implement(nsIBinaryHttpRequest), atomic)]
struct BinaryHttpRequest {
method: Vec<u8>,
scheme: Vec<u8>,
authority: Vec<u8>,
path: Vec<u8>,
headers: Vec<(Vec<u8>, Vec<u8>)>,
content: Vec<u8>,
}
impl BinaryHttpRequest {
xpcom_method!(get_method => GetMethod() -> nsACString);
fn get_method(&self) -> Result<nsCString, nsresult> {
Ok(nsCString::from(self.method.clone()))
}
xpcom_method!(get_scheme => GetScheme() -> nsACString);
fn get_scheme(&self) -> Result<nsCString, nsresult> {
Ok(nsCString::from(self.scheme.clone()))
}
xpcom_method!(get_authority => GetAuthority() -> nsACString);
fn get_authority(&self) -> Result<nsCString, nsresult> {
Ok(nsCString::from(self.authority.clone()))
}
xpcom_method!(get_path => GetPath() -> nsACString);
fn get_path(&self) -> Result<nsCString, nsresult> {
Ok(nsCString::from(self.path.clone()))
}
xpcom_method!(get_content => GetContent() -> ThinVec<u8>);
fn get_content(&self) -> Result<ThinVec<u8>, nsresult> {
Ok(self.content.clone().into_iter().collect())
}
xpcom_method!(get_header_names => GetHeaderNames() -> ThinVec<nsCString>);
fn get_header_names(&self) -> Result<ThinVec<nsCString>, nsresult> {
Ok(extract_header_components(
&self.headers,
HeaderComponent::Name,
))
}
xpcom_method!(get_header_values => GetHeaderValues() -> ThinVec<nsCString>);
fn get_header_values(&self) -> Result<ThinVec<nsCString>, nsresult> {
Ok(extract_header_components(
&self.headers,
HeaderComponent::Value,
))
}
}
#[xpcom(implement(nsIBinaryHttpResponse), atomic)]
struct BinaryHttpResponse {
status: u16,
headers: Vec<(Vec<u8>, Vec<u8>)>,
content: Vec<u8>,
}
impl BinaryHttpResponse {
xpcom_method!(get_status => GetStatus() -> u16);
fn get_status(&self) -> Result<u16, nsresult> {
Ok(self.status)
}
xpcom_method!(get_content => GetContent() -> ThinVec<u8>);
fn get_content(&self) -> Result<ThinVec<u8>, nsresult> {
Ok(self.content.clone().into_iter().collect())
}
xpcom_method!(get_header_names => GetHeaderNames() -> ThinVec<nsCString>);
fn get_header_names(&self) -> Result<ThinVec<nsCString>, nsresult> {
Ok(extract_header_components(
&self.headers,
HeaderComponent::Name,
))
}
xpcom_method!(get_header_values => GetHeaderValues() -> ThinVec<nsCString>);
fn get_header_values(&self) -> Result<ThinVec<nsCString>, nsresult> {
Ok(extract_header_components(
&self.headers,
HeaderComponent::Value,
))
}
}
#[xpcom(implement(nsIBinaryHttp), atomic)]
struct BinaryHttp {}
impl BinaryHttp {
xpcom_method!(encode_request => EncodeRequest(request: *const nsIBinaryHttpRequest) -> ThinVec<u8>);
fn encode_request(&self, request: &nsIBinaryHttpRequest) -> Result<ThinVec<u8>, nsresult> {
let mut method = nsCString::new();
unsafe { request.GetMethod(&mut *method) }.to_result()?;
let mut scheme = nsCString::new();
unsafe { request.GetScheme(&mut *scheme) }.to_result()?;
let mut authority = nsCString::new();
unsafe { request.GetAuthority(&mut *authority) }.to_result()?;
let mut path = nsCString::new();
unsafe { request.GetPath(&mut *path) }.to_result()?;
let mut message = Message::request(
method.to_vec(),
scheme.to_vec(),
authority.to_vec(),
path.to_vec(),
);
let mut header_names = ThinVec::new();
unsafe { request.GetHeaderNames(&mut header_names) }.to_result()?;
let mut header_values = ThinVec::with_capacity(header_names.len());
unsafe { request.GetHeaderValues(&mut header_values) }.to_result()?;
if header_names.len() != header_values.len() {
return Err(NS_ERROR_INVALID_ARG);
}
for (name, value) in header_names.iter().zip(header_values.iter()) {
message.put_header(name.to_vec(), value.to_vec());
}
let mut content = ThinVec::new();
unsafe { request.GetContent(&mut content) }.to_result()?;
message.write_content(content);
let mut encoded = ThinVec::new();
message
.write_bhttp(Mode::KnownLength, &mut encoded)
.map_err(|_| NS_ERROR_FAILURE)?;
Ok(encoded)
}
xpcom_method!(decode_response => DecodeResponse(response: *const ThinVec<u8>) -> *const nsIBinaryHttpResponse);
fn decode_response(
&self,
response: &ThinVec<u8>,
) -> Result<RefPtr<nsIBinaryHttpResponse>, nsresult> {
let mut cursor = Cursor::new(response);
let decoded = Message::read_bhttp(&mut cursor).map_err(|_| NS_ERROR_UNEXPECTED)?;
let status = decoded.control().status().ok_or(NS_ERROR_UNEXPECTED)?;
let headers = decoded
.header()
.iter()
.map(|field| (field.name().to_vec(), field.value().to_vec()))
.collect();
let content = decoded.content().to_vec();
let binary_http_response = BinaryHttpResponse::allocate(InitBinaryHttpResponse {
status,
headers,
content,
});
binary_http_response
.query_interface::<nsIBinaryHttpResponse>()
.ok_or(NS_ERROR_FAILURE)
}
xpcom_method!(decode_request => DecodeRequest(request: *const ThinVec<u8>) -> *const nsIBinaryHttpRequest);
fn decode_request(
&self,
request: &ThinVec<u8>,
) -> Result<RefPtr<nsIBinaryHttpRequest>, nsresult> {
let mut cursor = Cursor::new(request);
let decoded = Message::read_bhttp(&mut cursor).map_err(|_| NS_ERROR_UNEXPECTED)?;
let method = decoded
.control()
.method()
.ok_or(NS_ERROR_UNEXPECTED)?
.to_vec();
let scheme = decoded
.control()
.scheme()
.ok_or(NS_ERROR_UNEXPECTED)?
.to_vec();
// authority and path can be empty, in which case we return empty arrays
let authority = decoded.control().authority().unwrap_or(&[]).to_vec();
let path = decoded.control().path().unwrap_or(&[]).to_vec();
let headers = decoded
.header()
.iter()
.map(|field| (field.name().to_vec(), field.value().to_vec()))
.collect();
let content = decoded.content().to_vec();
let binary_http_request = BinaryHttpRequest::allocate(InitBinaryHttpRequest {
method,
scheme,
authority,
path,
headers,
content,
});
binary_http_request
.query_interface::<nsIBinaryHttpRequest>()
.ok_or(NS_ERROR_FAILURE)
}
xpcom_method!(encode_response => EncodeResponse(response: *const nsIBinaryHttpResponse) -> ThinVec<u8>);
fn encode_response(&self, response: &nsIBinaryHttpResponse) -> Result<ThinVec<u8>, nsresult> {
let mut status = 0;
unsafe { response.GetStatus(&mut status) }.to_result()?;
let mut message = Message::response(status);
let mut header_names = ThinVec::new();
unsafe { response.GetHeaderNames(&mut header_names) }.to_result()?;
let mut header_values = ThinVec::with_capacity(header_names.len());
unsafe { response.GetHeaderValues(&mut header_values) }.to_result()?;
if header_names.len() != header_values.len() {
return Err(NS_ERROR_INVALID_ARG);
}
for (name, value) in header_names.iter().zip(header_values.iter()) {
message.put_header(name.to_vec(), value.to_vec());
}
let mut content = ThinVec::new();
unsafe { response.GetContent(&mut content) }.to_result()?;
message.write_content(content);
let mut encoded = ThinVec::new();
message
.write_bhttp(Mode::KnownLength, &mut encoded)
.map_err(|_| NS_ERROR_FAILURE)?;
Ok(encoded)
}
}
#[no_mangle]
pub extern "C" fn binary_http_constructor(
iid: *const xpcom::nsIID,
result: *mut *mut xpcom::reexports::libc::c_void,
) -> nsresult {
let binary_http = BinaryHttp::allocate(InitBinaryHttp {});
unsafe { binary_http.QueryInterface(iid, result) }
}
[ Dauer der Verarbeitung: 0.38 Sekunden
(vorverarbeitet)
]
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2026-03-28
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