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Issue #7382 Use descriptive enums instead of booleans for MIMEClassifier::classifer

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This commit is contained in:
Mathieu Rheaume 2015-08-29 17:27:50 -04:00
parent 815e981c69
commit 8525495265
4 changed files with 189 additions and 50 deletions
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33
components/net/resource_task.rs
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@ -10,8 +10,7 @@ use cookie_storage::CookieStorage;
use data_loader;
use file_loader;
use http_loader::{self, create_http_connector, Connector};
use mime_classifier::MIMEClassifier;
use mime_classifier::{ApacheBugFlag, MIMEClassifier, NoSniffFlag};
use net_traits::ProgressMsg::Done;
use net_traits::{ControlMsg, LoadData, LoadResponse, LoadConsumer, CookieSource};
use net_traits::{Metadata, ProgressMsg, ResourceTask, AsyncResponseTarget, ResponseAction};
@ -29,7 +28,9 @@ use ipc_channel::ipc::{self, IpcReceiver, IpcSender};
use std::borrow::ToOwned;
use std::boxed::FnBox;
use std::sync::Arc;
use std::sync::{Arc, Mutex};
use std::sync::mpsc::{channel, Sender};
pub enum ProgressSender {
@ -72,21 +73,20 @@ pub fn start_sending_sniffed_opt(start_chan: LoadConsumer, mut metadata: Metadat
-> Result<ProgressSender, ()> {
if opts::get().sniff_mime_types {
// TODO: should be calculated in the resource loader, from pull requeset #4094
let mut nosniff = false;
let mut check_for_apache_bug = false;
let mut no_sniff = NoSniffFlag::OFF;
let mut check_for_apache_bug = ApacheBugFlag::OFF;
if let Some(ref headers) = metadata.headers {
if let Some(ref raw_content_type) = headers.get_raw("content-type") {
if raw_content_type.len() > 0 {
let ref last_raw_content_type = raw_content_type[raw_content_type.len() - 1];
check_for_apache_bug = last_raw_content_type == b"text/plain"
|| last_raw_content_type == b"text/plain; charset=ISO-8859-1"
|| last_raw_content_type == b"text/plain; charset=iso-8859-1"
|| last_raw_content_type == b"text/plain; charset=UTF-8";
check_for_apache_bug = apache_bug_predicate(last_raw_content_type)
}
}
if let Some(ref raw_content_type_options) = headers.get_raw("X-content-type-options") {
nosniff = raw_content_type_options.iter().any(|ref opt| *opt == b"nosniff");
if raw_content_type_options.iter().any(|ref opt| *opt == b"nosniff") {
no_sniff = NoSniffFlag::ON
}
}
}
@ -94,7 +94,7 @@ pub fn start_sending_sniffed_opt(start_chan: LoadConsumer, mut metadata: Metadat
metadata.content_type.map(|ContentType(Mime(toplevel, sublevel, _))| {
(format!("{}", toplevel), format!("{}", sublevel))
});
metadata.content_type = classifier.classify(nosniff, check_for_apache_bug, &supplied_type,
metadata.content_type = classifier.classify(no_sniff, check_for_apache_bug, &supplied_type,
&partial_body).map(|(toplevel, sublevel)| {
let mime_tp: TopLevel = toplevel.parse().unwrap();
let mime_sb: SubLevel = sublevel.parse().unwrap();
@ -106,6 +106,17 @@ pub fn start_sending_sniffed_opt(start_chan: LoadConsumer, mut metadata: Metadat
start_sending_opt(start_chan, metadata)
}
fn apache_bug_predicate(last_raw_content_type: &[u8]) -> ApacheBugFlag {
if last_raw_content_type == b"text/plain"
|| last_raw_content_type == b"text/plain; charset=ISO-8859-1"
|| last_raw_content_type == b"text/plain; charset=iso-8859-1"
|| last_raw_content_type == b"text/plain; charset=UTF-8" {
ApacheBugFlag::ON
} else {
ApacheBugFlag::OFF
}
}
/// For use by loaders in responding to a Load message.
pub fn start_sending_opt(start_chan: LoadConsumer, metadata: Metadata) -> Result<ProgressSender, ()> {
match start_chan {