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Add 'compression' contrib module.

This commit is contained in:
Martin1887 2018-10-02 19:15:34 +02:00 committed by Jeb Rosen
parent 3c51a2f401
commit 6a55aa7253
7 changed files with 926 additions and 0 deletions
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7
contrib/lib/Cargo.toml
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@ -23,6 +23,9 @@ tera_templates = ["tera", "templates"]
handlebars_templates = ["handlebars", "templates"]
helmet = ["time"]
serve = []
compression = ["brotli_compression", "gzip_compression"]
brotli_compression = ["brotli"]
gzip_compression = ["flate2"]
# The barage of user-facing database features.
diesel_sqlite_pool = ["databases", "diesel/sqlite", "diesel/r2d2"]
@ -76,6 +79,10 @@ r2d2-memcache = { version = "0.3", optional = true }
# SpaceHelmet dependencies
time = { version = "0.1.40", optional = true }
# Compression dependencies
brotli = { version = "2.5", optional = true }
flate2 = { version = "1.0", optional = true }
[target.'cfg(debug_assertions)'.dependencies]
notify = { version = "^4.0.6" }

192
contrib/lib/src/compression/fairing.rs Normal file
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@ -0,0 +1,192 @@
//! Automatic response compression.
//!
//! See the [`Compression`](compression::fairing::Compression) type for further
//! details.
use rocket::config::{ConfigError, Value};
use rocket::fairing::{Fairing, Info, Kind};
use rocket::http::MediaType;
use rocket::Rocket;
use rocket::{Request, Response};
crate use super::CompressionUtils;
crate struct Context {
crate exclusions: Vec<MediaType>,
}
impl Context {
crate fn new() -> Context {
Context {
exclusions: vec![
MediaType::parse_flexible("application/gzip").unwrap(),
MediaType::parse_flexible("application/zip").unwrap(),
MediaType::parse_flexible("image/*").unwrap(),
MediaType::parse_flexible("video/*").unwrap(),
MediaType::parse_flexible("application/wasm").unwrap(),
MediaType::parse_flexible("application/octet-stream").unwrap(),
],
}
}
crate fn with_exclusions(excls: Vec<MediaType>) -> Context {
Context { exclusions: excls }
}
}
/// The Compression type implements brotli and gzip compression for responses in
/// accordance with the Accept-Encoding header. If accepted, brotli compression
/// is preferred over gzip.
///
/// In the brotli compression mode (using the
/// [rust-brotli](https://github.com/dropbox/rust-brotli) crate), quality is set
/// to 2 in order to achieve fast compression with a compression ratio similar
/// to gzip. When appropriate, brotli's text and font compression modes are
/// used.
///
/// In the gzip compression mode (using the
/// [flate2](https://github.com/alexcrichton/flate2-rs) crate), quality is set
/// to the default (9) in order to have good compression ratio.
///
/// This fairing does not compress responses that already have a
/// `Content-Encoding` header.
///
/// This fairing ignores the responses with a `Content-Type` matching any of
/// the following default types:
///
/// - application/gzip
/// - application/brotli
/// - image/*
/// - video/*
/// - application/wasm
/// - application/octet-stream
///
/// The excluded types can be changed changing the `compress.exclude` Rocket
/// configuration property.
///
/// # Usage
///
/// To use, add the `brotli_compression` feature, the `gzip_compression`
/// feature, or the `compression` feature (to enable both algorithms) to the
/// `rocket_contrib` dependencies section of your `Cargo.toml`:
///
/// ```toml,ignore
/// [dependencies.rocket_contrib]
/// version = "*"
/// default-features = false
/// features = ["compression"]
/// ```
///
/// Then, ensure that the compression [fairing](/rocket/fairing/) is attached to
/// your Rocket application:
///
/// ```rust
/// extern crate rocket;
/// extern crate rocket_contrib;
///
/// use rocket_contrib::compression::Compression;
///
/// fn main() {
/// rocket::ignite()
/// // ...
/// .attach(Compression::fairing())
/// // ...
/// # ;
/// }
/// ```
pub struct Compression(());
impl Compression {
/// Returns a fairing that compresses outgoing requests.
///
/// ## Example
/// To attach this fairing, simply call `attach` on the application's
/// `Rocket` instance with `Compression::fairing()`:
///
/// ```rust
/// extern crate rocket;
/// extern crate rocket_contrib;
///
/// use rocket_contrib::compression::Compression;
///
/// fn main() {
/// rocket::ignite()
/// // ...
/// .attach(Compression::fairing())
/// // ...
/// # ;
/// }
/// ```
pub fn fairing() -> Compression {
Compression { 0: () }
}
}
impl Fairing for Compression {
fn info(&self) -> Info {
Info {
name: "Response compression",
kind: Kind::Attach | Kind::Response,
}
}
fn on_attach(&self, rocket: Rocket) -> Result<Rocket, Rocket> {
let mut ctxt = Context::new();
match rocket.config().get_table("compress").and_then(|t| {
t.get("exclude")
.ok_or(ConfigError::Missing(String::from("exclude")))
}) {
Ok(excls) => match excls.as_array() {
Some(excls) => {
let mut error = false;
let mut exclusions_vec = Vec::with_capacity(excls.len());
for e in excls {
match e {
Value::String(s) => match MediaType::parse_flexible(s) {
Some(media_type) => exclusions_vec.push(media_type),
None => {
error = true;
warn_!(
"Exclusions must be valid content types, using default compression exclusions '{:?}'",
ctxt.exclusions
);
break;
}
},
_ => {
error = true;
warn_!(
"Exclusions must be strings, using default compression exclusions '{:?}'",
ctxt.exclusions
);
break;
}
}
}
if !error {
ctxt = Context::with_exclusions(exclusions_vec);
}
}
None => {
warn_!(
"Exclusions must be an array of strings, using default compression exclusions '{:?}'",
ctxt.exclusions
);
}
},
Err(ConfigError::Missing(_)) => { /* ignore missing */ }
Err(e) => {
e.pretty_print();
warn_!(
"Using default compression exclusions '{:?}'",
ctxt.exclusions
);
}
};
Ok(rocket.manage(ctxt))
}
fn on_response(&self, request: &Request, response: &mut Response) {
CompressionUtils::compress_response(request, response, true);
}
}

111
contrib/lib/src/compression/mod.rs Normal file
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@ -0,0 +1,111 @@
//! `Compression` fairing and `Compressed` responder to automatically and
//! on demand respectively compressing responses.
mod fairing;
mod responder;
pub use self::fairing::Compression;
pub use self::responder::Compressed;
crate use self::fairing::Context;
use rocket::http::hyper::header::{ContentEncoding, Encoding};
use rocket::{Request, Response};
use std::io::Read;
#[cfg(feature = "brotli_compression")]
use brotli::enc::backward_references::BrotliEncoderMode;
#[cfg(feature = "gzip_compression")]
use flate2::read::GzEncoder;
crate struct CompressionUtils;
impl CompressionUtils {
fn accepts_encoding(request: &Request, encoding: &str) -> bool {
request
.headers()
.get("Accept-Encoding")
.flat_map(|accept| accept.split(","))
.map(|accept| accept.trim())
.any(|accept| accept == encoding)
}
fn already_encoded(response: &Response) -> bool {
response.headers().get("Content-Encoding").next().is_some()
}
fn set_body_and_encoding<'r, B: Read + 'r>(
response: &mut Response<'r>,
body: B,
encoding: Encoding,
) {
response.set_header(ContentEncoding(vec![encoding]));
response.set_streamed_body(body);
}
fn skip_encoding(
content_type: &Option<rocket::http::ContentType>,
context: &rocket::State<Context>,
) -> bool {
match content_type {
Some(content_type) => context.exclusions.iter().any(|exc_media_type| {
if exc_media_type.sub() == "*" {
*exc_media_type.top() == *content_type.top()
} else {
*exc_media_type == *content_type.media_type()
}
}),
None => false,
}
}
fn compress_response(request: &Request, response: &mut Response, respect_excludes: bool) {
if CompressionUtils::already_encoded(response) {
return;
}
let content_type = response.content_type();
if respect_excludes {
let context = request
.guard::<::rocket::State<Context>>()
.expect("Compression Context registered in on_attach");
if CompressionUtils::skip_encoding(&content_type, &context) {
return;
}
}
// Compression is done when the request accepts brotli or gzip encoding
// and the corresponding feature is enabled
if cfg!(feature = "brotli_compression") && CompressionUtils::accepts_encoding(request, "br")
{
if let Some(plain) = response.take_body() {
let content_type_top = content_type.as_ref().map(|ct| ct.top());
let mut params = brotli::enc::BrotliEncoderInitParams();
params.quality = 2;
if content_type_top == Some("text".into()) {
params.mode = BrotliEncoderMode::BROTLI_MODE_TEXT;
} else if content_type_top == Some("font".into()) {
params.mode = BrotliEncoderMode::BROTLI_MODE_FONT;
}
let compressor =
brotli::CompressorReader::with_params(plain.into_inner(), 4096, &params);
CompressionUtils::set_body_and_encoding(
response,
compressor,
Encoding::EncodingExt("br".into()),
);
}
} else if cfg!(feature = "gzip_compression")
&& CompressionUtils::accepts_encoding(request, "gzip")
{
if let Some(plain) = response.take_body() {
let compressor = GzEncoder::new(plain.into_inner(), flate2::Compression::default());
CompressionUtils::set_body_and_encoding(response, compressor, Encoding::Gzip);
}
}
}
}

56
contrib/lib/src/compression/responder.rs Normal file
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@ -0,0 +1,56 @@
//! Response on demand compression.
//!
//! See the [`Compression`](compression::responder::Compressed) type for
//! further details.
use rocket::response::{self, Responder, Response};
use rocket::Request;
crate use super::CompressionUtils;
/// Compress a `Responder` response ignoring the compression exclusions.
///
/// Delegates the remainder of the response to the wrapped `Responder`.
///
/// # Usage
///
/// To use, add the `brotli_compression` feature, the `gzip_compression`
/// feature, or the `compression` feature (to enable both algorithms) to the
/// `rocket_contrib` dependencies section of your `Cargo.toml`:
///
/// ```toml,ignore
/// [dependencies.rocket_contrib]
/// version = "*"
/// default-features = false
/// features = ["compression"]
/// ```
///
/// Then, compress the desired response wrapping a `Responder` inside
/// `Compressed`:
///
/// ```rust
/// use rocket_contrib::compression::Compressed;
///
/// # #[allow(unused_variables)]
/// let response = Compressed("Hi.");
/// ```
#[derive(Debug)]
pub struct Compressed<R>(pub R);
impl<'r, R: Responder<'r>> Compressed<R> {
pub fn new(response: R) -> Compressed<R> {
Compressed { 0: response }
}
}
impl<'r, R: Responder<'r>> Responder<'r> for Compressed<R> {
#[inline(always)]
fn respond_to(self, request: &Request) -> response::Result<'r> {
let mut response = Response::build()
.merge(self.0.respond_to(request)?)
.finalize();
CompressionUtils::compress_response(request, &mut response, false);
Ok(response)
}
}

9
contrib/lib/src/lib.rs
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@ -54,3 +54,12 @@
#[cfg(feature="databases")] extern crate rocket_contrib_codegen;
#[cfg(feature="databases")] #[doc(hidden)] pub use rocket_contrib_codegen::*;
#[cfg(any(feature="brotli_compression", feature="gzip_compression"))]
pub mod compression;
#[cfg(feature="brotli_compression")]
extern crate brotli;
#[cfg(feature="gzip_compression")]
extern crate flate2;

244
contrib/lib/tests/compressed.rs Normal file
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@ -0,0 +1,244 @@
#![feature(decl_macro, proc_macro_hygiene)]
#[macro_use]
extern crate rocket;
extern crate rocket_contrib;
#[cfg(all(feature = "brotli_compression", feature = "gzip_compression"))]
mod compressed_tests {
extern crate brotli;
extern crate flate2;
use rocket::http::hyper::header::{ContentEncoding, Encoding};
use rocket::http::Status;
use rocket::http::{ContentType, Header};
use rocket::local::Client;
use rocket::response::{Content, Response};
use rocket::routes;
use rocket_contrib::compression::Compressed;
use std::io::Cursor;
use std::io::Read;
use self::flate2::read::{GzDecoder, GzEncoder};
const HELLO: &str = r"This is a message to hello with more than 100 bytes \
in order to have to read more than one buffer when gzipping. こんにちは!";
#[get("/")]
pub fn index() -> Compressed<String> {
Compressed::new(String::from(HELLO))
}
#[get("/font")]
pub fn font() -> Compressed<Content<&'static str>> {
Compressed::new(Content(ContentType::WOFF, HELLO))
}
#[get("/image")]
pub fn image() -> Compressed<Content<&'static str>> {
Compressed::new(Content(ContentType::PNG, HELLO))
}
#[get("/already_encoded")]
pub fn already_encoded() -> Compressed<Response<'static>> {
let mut encoder = GzEncoder::new(
Cursor::new(String::from(HELLO)),
flate2::Compression::default(),
);
let mut encoded = Vec::new();
encoder.read_to_end(&mut encoded).unwrap();
Compressed::new(
Response::build()
.header(ContentEncoding(vec![Encoding::Gzip]))
.sized_body(Cursor::new(encoded))
.finalize(),
)
}
#[get("/identity")]
pub fn identity() -> Compressed<Response<'static>> {
Compressed::new(
Response::build()
.header(ContentEncoding(vec![Encoding::Identity]))
.sized_body(Cursor::new(String::from(HELLO)))
.finalize(),
)
}
fn rocket() -> rocket::Rocket {
rocket::ignite().mount("/", routes![index, font, image, already_encoded, identity])
}
#[test]
fn test_prioritizes_brotli() {
let client = Client::new(rocket()).expect("valid rocket instance");
let mut response = client
.get("/")
.header(Header::new("Accept-Encoding", "deflate, gzip, br"))
.dispatch();
assert_eq!(response.status(), Status::Ok);
assert!(response
.headers()
.get("Content-Encoding")
.any(|x| x == "br"));
let mut body_plain = Cursor::new(Vec::<u8>::new());
brotli::BrotliDecompress(
&mut Cursor::new(response.body_bytes().unwrap()),
&mut body_plain,
)
.expect("decompress response");
assert_eq!(
String::from_utf8(body_plain.get_mut().to_vec()).unwrap(),
String::from(HELLO)
);
}
#[test]
fn test_br_font() {
let client = Client::new(rocket()).expect("valid rocket instance");
let mut response = client
.get("/font")
.header(Header::new("Accept-Encoding", "deflate, gzip, br"))
.dispatch();
assert_eq!(response.status(), Status::Ok);
assert!(response
.headers()
.get("Content-Encoding")
.any(|x| x == "br"));
let mut body_plain = Cursor::new(Vec::<u8>::new());
brotli::BrotliDecompress(
&mut Cursor::new(response.body_bytes().unwrap()),
&mut body_plain,
)
.expect("decompress response");
assert_eq!(
String::from_utf8(body_plain.get_mut().to_vec()).unwrap(),
String::from(HELLO)
);
}
#[test]
fn test_fallback_gzip() {
let client = Client::new(rocket()).expect("valid rocket instance");
let mut response = client
.get("/")
.header(Header::new("Accept-Encoding", "deflate, gzip"))
.dispatch();
assert_eq!(response.status(), Status::Ok);
assert!(!response
.headers()
.get("Content-Encoding")
.any(|x| x == "br"));
assert!(response
.headers()
.get("Content-Encoding")
.any(|x| x == "gzip"));
let mut s = String::new();
GzDecoder::new(&response.body_bytes().unwrap()[..])
.read_to_string(&mut s)
.expect("decompress response");
assert_eq!(s, String::from(HELLO));
}
#[test]
fn test_does_not_recompress() {
let client = Client::new(rocket()).expect("valid rocket instance");
let mut response = client
.get("/already_encoded")
.header(Header::new("Accept-Encoding", "deflate, gzip, br"))
.dispatch();
assert_eq!(response.status(), Status::Ok);
assert!(!response
.headers()
.get("Content-Encoding")
.any(|x| x == "br"));
assert!(response
.headers()
.get("Content-Encoding")
.any(|x| x == "gzip"));
let mut s = String::new();
GzDecoder::new(&response.body_bytes().unwrap()[..])
.read_to_string(&mut s)
.expect("decompress response");
assert_eq!(s, String::from(HELLO));
}
#[test]
fn test_does_not_compress_explicit_identity() {
let client = Client::new(rocket()).expect("valid rocket instance");
let mut response = client
.get("/identity")
.header(Header::new("Accept-Encoding", "deflate, gzip, br"))
.dispatch();
assert_eq!(response.status(), Status::Ok);
assert!(!response
.headers()
.get("Content-Encoding")
.any(|x| x != "identity"));
assert_eq!(
String::from_utf8(response.body_bytes().unwrap()).unwrap(),
String::from(HELLO)
);
}
#[test]
fn test_ignore_exceptions() {
let client = Client::new(rocket()).expect("valid rocket instance");
let mut response = client
.get("/image")
.header(Header::new("Accept-Encoding", "deflate, gzip, br"))
.dispatch();
assert_eq!(response.status(), Status::Ok);
assert!(response
.headers()
.get("Content-Encoding")
.any(|x| x == "br"));
let mut body_plain = Cursor::new(Vec::<u8>::new());
brotli::BrotliDecompress(
&mut Cursor::new(response.body_bytes().unwrap()),
&mut body_plain,
)
.expect("decompress response");
assert_eq!(
String::from_utf8(body_plain.get_mut().to_vec()).unwrap(),
String::from(HELLO)
);
}
#[test]
fn test_ignores_unimplemented_encodings() {
let client = Client::new(rocket()).expect("valid rocket instance");
let mut response = client
.get("/")
.header(Header::new("Accept-Encoding", "deflate"))
.dispatch();
assert_eq!(response.status(), Status::Ok);
assert!(!response
.headers()
.get("Content-Encoding")
.any(|x| x != "identity"));
assert_eq!(
String::from_utf8(response.body_bytes().unwrap()).unwrap(),
String::from(HELLO)
);
}
#[test]
fn test_respects_identity_only() {
let client = Client::new(rocket()).expect("valid rocket instance");
let mut response = client
.get("/")
.header(Header::new("Accept-Encoding", "identity"))
.dispatch();
assert_eq!(response.status(), Status::Ok);
assert!(!response
.headers()
.get("Content-Encoding")
.any(|x| x != "identity"));
assert_eq!(
String::from_utf8(response.body_bytes().unwrap()).unwrap(),
String::from(HELLO)
);
}
}

307
contrib/lib/tests/compression.rs Normal file
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@ -0,0 +1,307 @@
#![feature(decl_macro, proc_macro_hygiene)]
#[macro_use]
extern crate rocket;
extern crate rocket_contrib;
#[cfg(all(feature = "brotli_compression", feature = "gzip_compression"))]
mod compression_tests {
extern crate brotli;
extern crate flate2;
use rocket::config::{Config, Environment};
use rocket::http::hyper::header::{ContentEncoding, Encoding};
use rocket::http::Status;
use rocket::http::{ContentType, Header};
use rocket::local::Client;
use rocket::response::Response;
use rocket::routes;
use std::io::Cursor;
use std::io::Read;
use self::flate2::read::{GzDecoder, GzEncoder};
const HELLO: &str = r"This is a message to hello with more than 100 bytes \
in order to have to read more than one buffer when gzipping. こんにちは!";
#[get("/")]
pub fn index() -> String {
String::from(HELLO)
}
#[get("/font")]
pub fn font() -> Response<'static> {
Response::build()
.header(ContentType::WOFF)
.sized_body(Cursor::new(String::from(HELLO)))
.finalize()
}
#[get("/image")]
pub fn image() -> Response<'static> {
Response::build()
.header(ContentType::PNG)
.sized_body(Cursor::new(String::from(HELLO)))
.finalize()
}
#[get("/tar")]
pub fn tar() -> Response<'static> {
Response::build()
.header(ContentType::TAR)
.sized_body(Cursor::new(String::from(HELLO)))
.finalize()
}
#[get("/already_encoded")]
pub fn already_encoded() -> Response<'static> {
let mut encoder = GzEncoder::new(
Cursor::new(String::from(HELLO)),
flate2::Compression::default(),
);
let mut encoded = Vec::new();
encoder.read_to_end(&mut encoded).unwrap();
Response::build()
.header(ContentEncoding(vec![Encoding::Gzip]))
.sized_body(Cursor::new(encoded))
.finalize()
}
#[get("/identity")]
pub fn identity() -> Response<'static> {
Response::build()
.header(ContentEncoding(vec![Encoding::Identity]))
.sized_body(Cursor::new(String::from(HELLO)))
.finalize()
}
fn rocket() -> rocket::Rocket {
rocket::ignite()
.mount(
"/",
routes![index, font, image, tar, already_encoded, identity],
)
.attach(rocket_contrib::compression::Compression::fairing())
}
fn rocket_tar_exception() -> rocket::Rocket {
let mut table = std::collections::BTreeMap::new();
table.insert("exclude".to_string(), vec!["application/x-tar"]);
let config = Config::build(Environment::Development)
.extra("compress", table)
.expect("valid configuration");
rocket::custom(config)
.mount("/", routes![image, tar])
.attach(rocket_contrib::compression::Compression::fairing())
}
#[test]
fn test_prioritizes_brotli() {
let client = Client::new(rocket()).expect("valid rocket instance");
let mut response = client
.get("/")
.header(Header::new("Accept-Encoding", "deflate, gzip, br"))
.dispatch();
assert_eq!(response.status(), Status::Ok);
assert!(response
.headers()
.get("Content-Encoding")
.any(|x| x == "br"));
let mut body_plain = Cursor::new(Vec::<u8>::new());
brotli::BrotliDecompress(
&mut Cursor::new(response.body_bytes().unwrap()),
&mut body_plain,
)
.expect("decompress response");
assert_eq!(
String::from_utf8(body_plain.get_mut().to_vec()).unwrap(),
String::from(HELLO)
);
}
#[test]
fn test_br_font() {
let client = Client::new(rocket()).expect("valid rocket instance");
let mut response = client
.get("/font")
.header(Header::new("Accept-Encoding", "deflate, gzip, br"))
.dispatch();
assert_eq!(response.status(), Status::Ok);
assert!(response
.headers()
.get("Content-Encoding")
.any(|x| x == "br"));
let mut body_plain = Cursor::new(Vec::<u8>::new());
brotli::BrotliDecompress(
&mut Cursor::new(response.body_bytes().unwrap()),
&mut body_plain,
)
.expect("decompress response");
assert_eq!(
String::from_utf8(body_plain.get_mut().to_vec()).unwrap(),
String::from(HELLO)
);
}
#[test]
fn test_fallback_gzip() {
let client = Client::new(rocket()).expect("valid rocket instance");
let mut response = client
.get("/")
.header(Header::new("Accept-Encoding", "deflate, gzip"))
.dispatch();
assert_eq!(response.status(), Status::Ok);
assert!(!response
.headers()
.get("Content-Encoding")
.any(|x| x == "br"));
assert!(response
.headers()
.get("Content-Encoding")
.any(|x| x == "gzip"));
let mut s = String::new();
GzDecoder::new(&response.body_bytes().unwrap()[..])
.read_to_string(&mut s)
.expect("decompress response");
assert_eq!(s, String::from(HELLO));
}
#[test]
fn test_does_not_recompress() {
let client = Client::new(rocket()).expect("valid rocket instance");
let mut response = client
.get("/already_encoded")
.header(Header::new("Accept-Encoding", "deflate, gzip, br"))
.dispatch();
assert_eq!(response.status(), Status::Ok);
assert!(!response
.headers()
.get("Content-Encoding")
.any(|x| x == "br"));
assert!(response
.headers()
.get("Content-Encoding")
.any(|x| x == "gzip"));
let mut s = String::new();
GzDecoder::new(&response.body_bytes().unwrap()[..])
.read_to_string(&mut s)
.expect("decompress response");
assert_eq!(s, String::from(HELLO));
}
#[test]
fn test_does_not_compress_explicit_identity() {
let client = Client::new(rocket()).expect("valid rocket instance");
let mut response = client
.get("/identity")
.header(Header::new("Accept-Encoding", "deflate, gzip, br"))
.dispatch();
assert_eq!(response.status(), Status::Ok);
assert!(!response
.headers()
.get("Content-Encoding")
.any(|x| x != "identity"));
assert_eq!(
String::from_utf8(response.body_bytes().unwrap()).unwrap(),
String::from(HELLO)
);
}
#[test]
fn test_does_not_compress_image() {
let client = Client::new(rocket()).expect("valid rocket instance");
let mut response = client
.get("/image")
.header(Header::new("Accept-Encoding", "deflate, gzip, br"))
.dispatch();
assert_eq!(response.status(), Status::Ok);
assert!(!response
.headers()
.get("Content-Encoding")
.any(|x| x != "identity"));
assert_eq!(
String::from_utf8(response.body_bytes().unwrap()).unwrap(),
String::from(HELLO)
);
}
#[test]
fn test_ignores_unimplemented_encodings() {
let client = Client::new(rocket()).expect("valid rocket instance");
let mut response = client
.get("/")
.header(Header::new("Accept-Encoding", "deflate"))
.dispatch();
assert_eq!(response.status(), Status::Ok);
assert!(!response
.headers()
.get("Content-Encoding")
.any(|x| x != "identity"));
assert_eq!(
String::from_utf8(response.body_bytes().unwrap()).unwrap(),
String::from(HELLO)
);
}
#[test]
fn test_respects_identity_only() {
let client = Client::new(rocket()).expect("valid rocket instance");
let mut response = client
.get("/")
.header(Header::new("Accept-Encoding", "identity"))
.dispatch();
assert_eq!(response.status(), Status::Ok);
assert!(!response
.headers()
.get("Content-Encoding")
.any(|x| x != "identity"));
assert_eq!(
String::from_utf8(response.body_bytes().unwrap()).unwrap(),
String::from(HELLO)
);
}
#[test]
fn test_does_not_compress_custom_exception() {
let client = Client::new(rocket_tar_exception()).expect("valid rocket instance");
let mut response = client
.get("/tar")
.header(Header::new("Accept-Encoding", "deflate, gzip, br"))
.dispatch();
assert_eq!(response.status(), Status::Ok);
assert!(!response
.headers()
.get("Content-Encoding")
.any(|x| x != "identity"));
assert_eq!(
String::from_utf8(response.body_bytes().unwrap()).unwrap(),
String::from(HELLO)
);
}
#[test]
fn test_compress_custom_removed_exception() {
let client = Client::new(rocket_tar_exception()).expect("valid rocket instance");
let mut response = client
.get("/image")
.header(Header::new("Accept-Encoding", "deflate, gzip, br"))
.dispatch();
assert_eq!(response.status(), Status::Ok);
assert!(response
.headers()
.get("Content-Encoding")
.any(|x| x == "br"));
let mut body_plain = Cursor::new(Vec::<u8>::new());
brotli::BrotliDecompress(
&mut Cursor::new(response.body_bytes().unwrap()),
&mut body_plain,
)
.expect("decompress response");
assert_eq!(
String::from_utf8(body_plain.get_mut().to_vec()).unwrap(),
String::from(HELLO)
);
}
}