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Improve the parsing of data urls in URLParser to bring it more up-to-
spec. At the moment, we cannot parse the components of the MIME type
since it is represented as a string, but the spec requires it to be
parsed as a "MIME type record".
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Some of the code assumed that chars were always signed while that is
not the case on ARM hosts.
Also, some of the code tried to use EOF (-1) in a way similar to what
fgetc() does, however instead of storing the characters in an int
variable a char was used.
While this seemed to work it also meant that character 0xFF would be
incorrectly seen as an end-of-file.
Careful reading of fgetc() reveals that fgetc() stores character
data in an int where valid characters are in the range of 0-255 and
the EOF value is explicitly outside of that range (usually -1).
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This fixes a bug where a Utf8View was created with data from a temporary
string, which was immediately deleted. This lead to a use-after-free
issue. This also changes most occurences for StringBuilder::to_string in
URLParser to use ::string_view(), as the value is passed as StringView
const& most of the time anyways.
This fixes oss-fuzz issue 34973.
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This changes URL parser to use the 0xFFFFFFFF constant instead of 0 to
indicate end of file. This fixes a bug where inputs containing null
bytes would terminate the parser early, because they were interpreted
as end of file.
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This patch adds a state_name method to URLParser to convert a state to a
string. With this, the debugging statements now display the state names.
Furthermore, this fixes a bug where non-ASCII code points were
formatted as characters, which fails an assertion in the formatting
system.
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Because non-ASCII code points have negative byte values, trimming away
control characters requires checking for negative bytes values.
This also adds a test case with a URL containing non-ASCII code points.
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The previous behavior was to always VERIFY that the UTF-8 bytes were
valid when iterating over the code points of an UTF8View. This change
makes it so we instead output the 0xFFFD 'REPLACEMENT CHARACTER'
code point when encountering invalid bytes, and keep iterating the
view after skipping one byte.
Leaving the decision to the consumer would break symmetry with the
UTF32View API, which would in turn require heavy refactoring and/or
code duplication in generic code such as the one found in
Gfx::Painter and the Shell.
To make it easier for the consumers to detect the original bytes, we
provide a new method on the iterator that returns a Span over the
data that has been decoded. This method is immediately used in the
TextNode::compute_text_for_rendering method, which previously did
this in a ad-hoc waay.
This also add tests for the new behavior in TestUtf8.cpp, as well
as reinforcements to the existing tests to check if the underlying
bytes match up with their expected values.
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This replaces ctype.h with CharacterType.h everywhere I could find
issues with narrowing conversions. While using it will probably make
sense almost everywhere in the future, the most critical places should
have been addressed.
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We have to stop scanning once we hit a non-strippable character.
Add some tests to cover this.
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This adds a new URL parser, which aims to be compliant with the URL
specification (https://url.spec.whatwg.org/). It also contains a
rudimentary data URL parser.
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This removes URLParser, because its two exposed functions, urlencode()
and urldecode(), have been superseded by URL::percent_encode() and
URL::percent_decode(). This is in preparation for the introduction of a
new URL parser.
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SPDX License Identifiers are a more compact / standardized
way of representing file license information.
See: https://spdx.dev/resources/use/#identifiers
This was done with the `ambr` search and replace tool.
ambr --no-parent-ignore --key-from-file --rep-from-file key.txt rep.txt *
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Previously urlencode() would encode bytes above 127 incorrectly, printing
them as negative hex values.
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We also need to append the raw consumed value if *either* of the two
characters after the % isn't a hex digit, not only if *both* aren't.
Fixes #4257.
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Get rid of the weird old signature:
- int StringType::to_int(bool& ok) const
And replace it with sensible new signature:
- Optional<int> StringType::to_int() const
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