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Auto merge of #8359 - ben0x539:js-url-query-fragment, r=eefriedman

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Append query string + fragment to javascript: url.

When loading a URL whose scheme is javascript, we should do what
https://html.spec.whatwg.org/multipage/browsers.html#javascript-protocol
says and append the URL's query and fragment components to the scheme
data, as well as percent- and utf-8-decode the whole thing, before
evaluating it as javascript.

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This commit is contained in:
bors-servo 2015-11-07 04:03:35 +05:30
commit 33bbed7dc1
4 changed files with 69 additions and 3 deletions
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26
components/script/script_task.rs
View file

@ -1671,10 +1671,32 @@ impl ScriptTask {
let is_javascript = incomplete.url.scheme == "javascript";
let parse_input = if is_javascript {
use url::percent_encoding::percent_decode_to;
// Turn javascript: URL into JS code to eval, according to the steps in
// https://html.spec.whatwg.org/multipage/#javascript-protocol
let _ar = JSAutoRequest::new(self.get_cx());
let evalstr = incomplete.url.non_relative_scheme_data().unwrap();
let mut script_source_bytes = Vec::new();
// Start with the scheme data of the parsed URL (5.), while percent-decoding (8.)
percent_decode_to(incomplete.url.non_relative_scheme_data().unwrap().as_bytes(),
&mut script_source_bytes);
// Append question mark and query component, if any (6.), while percent-decoding (8.)
if let Some(ref query) = incomplete.url.query {
script_source_bytes.push(b'?');
percent_decode_to(query.as_bytes(), &mut script_source_bytes);
}
// Append number sign and fragment component if any (7.), while percent-decoding (8.)
if let Some(ref fragment) = incomplete.url.fragment {
script_source_bytes.push(b'#');
percent_decode_to(fragment.as_bytes(), &mut script_source_bytes);
}
// UTF-8 decode (9.)
let script_source = String::from_utf8_lossy(&script_source_bytes);
// Script source is ready to be evaluated (11.)
let mut jsval = RootedValue::new(self.get_cx(), UndefinedValue());
window.evaluate_js_on_global_with_result(evalstr, jsval.handle_mut());
window.evaluate_js_on_global_with_result(&script_source, jsval.handle_mut());
let strval = DOMString::from_jsval(self.get_cx(), jsval.handle(),
StringificationBehavior::Empty);
strval.unwrap_or(DOMString::new())