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[3.1.1] Fix stray backslashes in font-family.

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git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@1768 48356398-32a2-884e-a903-53898d9a118a
This commit is contained in:
Edward Z. Yang 2008-05-24 18:19:36 +00:00
parent c7e172f660
commit 10530d7f81
4 changed files with 7 additions and 4 deletions
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1
NEWS
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@ -17,6 +17,7 @@ NEWS ( CHANGELOG and HISTORY ) HTMLPurifier
manifest in token until end of operations. This prevents naughty internal
code from directly modifying CurrentToken when they're not supposed to.
- Percent encoding checks enabled for URI query and fragment
- Fix stray backslashes in font-family
. Added HTMLPurifier_UnitConverter and HTMLPurifier_Length for convenient
handling of CSS-style lengths. HTMLPurifier_AttrDef_CSS_Length now uses
this class.

8
library/HTMLPurifier/AttrDef/CSS/FontFamily.php
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@ -35,9 +35,11 @@ class HTMLPurifier_AttrDef_CSS_FontFamily extends HTMLPurifier_AttrDef
$quote = $font[0];
if ($font[$length - 1] !== $quote) continue;
$font = substr($font, 1, $length - 2);
// double-backslash processing is buggy
// double-backslash processing is buggy. Namely, it doesn't allow
// fonts that contain an adjacent quote, backslash, or comma
$font = str_replace("\\$quote", $quote, $font); // de-escape quote
$font = str_replace("\\\n", "\n", $font); // de-escape newlines
$font = str_replace("\\\n", '', $font); // de-escape newlines
$font = str_replace("\\\\", "\\", $font); // de-escape double backslashes
}
// $font is a pure representation of the font name
@ -50,8 +52,8 @@ class HTMLPurifier_AttrDef_CSS_FontFamily extends HTMLPurifier_AttrDef
// complicated font, requires quoting
// armor single quotes and new lines
$font = str_replace("\\", "\\\\", $font);
$font = str_replace("'", "\\'", $font);
$font = str_replace("\n", "\\\n", $font);
$final .= "'$font', ";
}
$final = rtrim($final, ', ');

1
tests/HTMLPurifier/AttrDef/CSS/FontFamilyTest.php
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@ -17,6 +17,7 @@ class HTMLPurifier_AttrDef_CSS_FontFamilyTest extends HTMLPurifier_AttrDefHarnes
$this->assertDef("John's Font", $d);
$this->assertDef($d = "'\xE5\xAE\x8B\xE4\xBD\x93'");
$this->assertDef("\xE5\xAE\x8B\xE4\xBD\x93", $d);
$this->assertDef("'\\','f'", "'\\\\', f");
}

1
tests/HTMLPurifier/AttrDef/CSS/URITest.php
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@ -26,7 +26,6 @@ class HTMLPurifier_AttrDef_CSS_URITest extends HTMLPurifier_AttrDefHarness
// escaping
$this->assertDef("url(http://www.example.com/foo,bar\))",
"url(http://www.example.com/foo\,bar\))");
}
}