1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
|
/* 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/. */
use resource_task::{Done, Payload, Metadata, LoadResponse, LoaderTask, start_sending};
use serialize::base64::FromBase64;
use url::Url;
use http::headers::test_utils::from_stream_with_str;
use http::headers::content_type::MediaType;
pub fn factory() -> LoaderTask {
proc(url, start_chan) {
// NB: we don't spawn a new task.
// Hypothesis: data URLs are too small for parallel base64 etc. to be worth it.
// Should be tested at some point.
load(url, start_chan)
}
}
fn load(url: Url, start_chan: Sender<LoadResponse>) {
assert!("data" == url.scheme);
let mut metadata = Metadata::default(url.clone());
// Split out content type and data.
let parts: ~[&str] = url.path.splitn(',', 1).collect();
if parts.len() != 2 {
start_sending(start_chan, metadata).send(Done(Err(())));
return;
}
// ";base64" must come at the end of the content type, per RFC 2397.
// rust-http will fail to parse it because there's no =value part.
let mut is_base64 = false;
let mut ct_str = parts[0];
if ct_str.ends_with(";base64") {
is_base64 = true;
ct_str = ct_str.slice_to(ct_str.as_bytes().len() - 7);
}
// Parse the content type using rust-http.
// FIXME: this can go into an infinite loop! (rust-http #25)
let content_type: Option<MediaType> = from_stream_with_str(ct_str);
metadata.set_content_type(&content_type);
let progress_chan = start_sending(start_chan, metadata);
if is_base64 {
match parts[1].from_base64() {
Err(..) => {
progress_chan.send(Done(Err(())));
}
Ok(data) => {
let data: ~[u8] = data;
progress_chan.send(Payload(data.move_iter().collect()));
progress_chan.send(Done(Ok(())));
}
}
} else {
// FIXME: Since the %-decoded URL is already a str, we can't
// handle UTF8-incompatible encodings.
let bytes: &[u8] = parts[1].as_bytes();
progress_chan.send(Payload(bytes.iter().map(|&x| x).collect()));
progress_chan.send(Done(Ok(())));
}
}
#[cfg(test)]
fn assert_parse(url: &'static str,
content_type: Option<(~str, ~str)>,
charset: Option<~str>,
data: Option<Vec<u8>>) {
use std::from_str::FromStr;
use std::comm;
let (start_chan, start_port) = comm::channel();
load(FromStr::from_str(url).unwrap(), start_chan);
let response = start_port.recv();
assert_eq!(&response.metadata.content_type, &content_type);
assert_eq!(&response.metadata.charset, &charset);
let progress = response.progress_port.recv();
match data {
None => {
assert_eq!(progress, Done(Err(())));
}
Some(dat) => {
assert_eq!(progress, Payload(dat));
assert_eq!(response.progress_port.recv(), Done(Ok(())));
}
}
}
#[test]
fn empty_invalid() {
assert_parse("data:", None, None, None);
}
#[test]
fn plain() {
assert_parse("data:,hello%20world", None, None, Some(bytes!("hello world").iter().map(|&x| x).collect()));
}
#[test]
fn plain_ct() {
assert_parse("data:text/plain,hello",
Some((~"text", ~"plain")), None, Some(bytes!("hello").iter().map(|&x| x).collect()));
}
#[test]
fn plain_charset() {
assert_parse("data:text/plain;charset=latin1,hello",
Some((~"text", ~"plain")), Some(~"latin1"), Some(bytes!("hello").iter().map(|&x| x).collect()));
}
#[test]
fn base64() {
assert_parse("data:;base64,C62+7w==", None, None, Some(vec!(0x0B, 0xAD, 0xBE, 0xEF)));
}
#[test]
fn base64_ct() {
assert_parse("data:application/octet-stream;base64,C62+7w==",
Some((~"application", ~"octet-stream")), None, Some(vec!(0x0B, 0xAD, 0xBE, 0xEF)));
}
#[test]
fn base64_charset() {
assert_parse("data:text/plain;charset=koi8-r;base64,8PLl9+XkIO3l5Pfl5A==",
Some((~"text", ~"plain")), Some(~"koi8-r"),
Some(vec!(0xF0, 0xF2, 0xE5, 0xF7, 0xE5, 0xE4, 0x20, 0xED, 0xE5, 0xE4, 0xF7, 0xE5, 0xE4)));
}
|
