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LibWeb: Don't crash when an unknown property begins with a single dash
This commit is contained in:
Gingeh
Andreas Kling
parent
48417152df
commit
f38e07e0c5
Notes:
github-actions[bot]
2025-07-20 06:56:21 +00:00
Author: https://github.com/Gingeh
Commit: f38e07e0c5
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/5518
3 changed files with 184 additions and 1 deletions
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@ -1622,7 +1622,7 @@ Optional<StyleProperty> Parser::convert_to_style_property(Declaration const& dec
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property_id = PropertyID::Custom;
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} else if (has_ignored_vendor_prefix(property_name)) {
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return {};
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} else if (!property_name.bytes_as_string_view().starts_with('-')) {
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} else {
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dbgln_if(CSS_PARSER_DEBUG, "Unrecognized CSS property '{}'", property_name);
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return {};
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}
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@ -0,0 +1,79 @@
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Harness status: OK
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Found 73 tests
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53 Pass
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20 Fail
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Pass no variable
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Pass variable
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Pass single char variable
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Pass single char '-' variable
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Pass no char variable
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Fail white space value (single space)
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Fail white space value (double space)
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Pass overwrite
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Fail can overwrite with no value
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Fail can overwrite with space value
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Pass case sensetivity
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Pass case sensetivity2
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Pass parsing three dashes at start of variable
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Pass parsing multiple dashes with one dash at start of variable
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Pass leading white space (single space)
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Pass middle white space (single space)
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Pass trailing white space (single space)
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Pass leading white space (double space) 2
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Pass middle white space (double space) 2
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Pass trailing white space (double space) 2
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Pass !important
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Fail !important 2
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Fail !important (with space)
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Pass no variable (Computed Style)
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Pass variable (Computed Style)
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Pass single char variable (Computed Style)
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Pass single char '-' variable (Computed Style)
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Pass no char variable (Computed Style)
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Fail white space value (single space) (Computed Style)
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Fail white space value (double space) (Computed Style)
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Pass overwrite (Computed Style)
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Fail can overwrite with no value (Computed Style)
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Fail can overwrite with space value (Computed Style)
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Pass case sensetivity (Computed Style)
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Pass case sensetivity2 (Computed Style)
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Pass parsing three dashes at start of variable (Computed Style)
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Pass parsing multiple dashes with one dash at start of variable (Computed Style)
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Pass leading white space (single space) (Computed Style)
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Pass middle white space (single space) (Computed Style)
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Pass trailing white space (single space) (Computed Style)
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Pass leading white space (double space) 2 (Computed Style)
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Pass middle white space (double space) 2 (Computed Style)
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Pass trailing white space (double space) 2 (Computed Style)
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Pass !important (Computed Style)
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Fail !important 2 (Computed Style)
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Fail !important (with space) (Computed Style)
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Pass no variable (Cascading)
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Pass variable (Cascading)
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Pass single char variable (Cascading)
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Pass single char '-' variable (Cascading)
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Pass no char variable (Cascading)
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Fail white space value (single space) (Cascading)
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Fail white space value (double space) (Cascading)
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Pass overwrite (Cascading)
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Fail can overwrite with no value (Cascading)
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Fail can overwrite with space value (Cascading)
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Pass case sensetivity (Cascading)
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Pass case sensetivity2 (Cascading)
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Pass parsing three dashes at start of variable (Cascading)
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Pass parsing multiple dashes with one dash at start of variable (Cascading)
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Pass leading white space (single space) (Cascading)
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Pass middle white space (single space) (Cascading)
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Pass trailing white space (single space) (Cascading)
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Pass leading white space (double space) 2 (Cascading)
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Pass middle white space (double space) 2 (Cascading)
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Pass trailing white space (double space) 2 (Cascading)
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Pass !important (Cascading)
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Fail !important 2 (Cascading)
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Fail !important (with space) (Cascading)
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Pass basic CSSOM.setProperty
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Fail CSSOM.setProperty with space 1
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Fail CSSOM.setProperty with space 2
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Pass CSSOM.setProperty with space 3
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@ -0,0 +1,104 @@
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<!DOCTYPE html>
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<html>
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<head>
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<title>variable-definition: get variable value using getPropertyValue</title>
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<meta rel="author" title="Kevin Babbitt">
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<meta rel="author" title="Greg Whitworth">
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<link rel="author" title="Microsoft Corporation" href="http://microsoft.com" />
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<link rel="help" href="http://www.w3.org/TR/css-variables-1/#using-variables">
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<script src="../../resources/testharness.js"></script>
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<script src="../../resources/testharnessreport.js"></script>
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</head>
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<body>
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<div id="log"></div>
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<script type="text/javascript">
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"use strict";
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let templates = [
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{ varName:"--var", expectedValue:"", style:"", testName:"no variable"},
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{ varName:"--var", expectedValue:"value", style:"--var:value", testName:"variable"},
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{ varName:"--v", expectedValue:"value", style:"--v:value", testName:"single char variable"},
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{ varName:"---", expectedValue:"value", style:"---:value", testName:"single char '-' variable"},
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{ varName:"--", expectedValue:"", style:"--:value", testName:"no char variable"},
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{ varName:"--var", expectedValue:" ", style:"--var: ", testName:"white space value (single space)"},
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{ varName:"--var", expectedValue:" ", style:"--var: ", testName:"white space value (double space)"},
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{ varName:"--var", expectedValue:"value2", style:"--var:value1; --var:value2", testName:"overwrite"},
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{ varName:"--var", expectedValue:" ", style:"--var:value;--var:;", testName:"can overwrite with no value"},
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{ varName:"--var", expectedValue:" ", style:"--var:value;--var: ;", testName:"can overwrite with space value"},
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{ varName:"--var", expectedValue:"value1", style:"--var:value1; --Var:value2", testName:"case sensetivity"},
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{ varName:"--Var", expectedValue:"value2", style:"--var:value1; --Var:value2", testName:"case sensetivity2"},
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{ varName:"---var", expectedValue:"value", style:"---var:value;", testName:"parsing three dashes at start of variable"},
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{ varName:"-var4" , expectedValue:"", style:"-var4:value3", testName:"parsing multiple dashes with one dash at start of variable"},
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{ varName:"--var", expectedValue:"value", style:"--var: value", testName:" leading white space (single space)"},
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{ varName:"--var", expectedValue:"value1 value2", style:"--var:value1 value2", testName:" middle white space (single space)"},
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{ varName:"--var", expectedValue:"value", style:"--var:value ", testName:" trailing white space (single space)"},
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{ varName:"--var", expectedValue:"value", style:"--var: value", testName:" leading white space (double space) 2"},
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{ varName:"--var", expectedValue:"value1 value2", style:"--var:value1 value2",testName:" middle white space (double space) 2"},
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{ varName:"--var", expectedValue:"value", style:"--var:value ", testName:" trailing white space (double space) 2"},
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{ varName:"--var", expectedValue:"value1", style:"--var:value1 !important;", testName:"!important"},
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{ varName:"--var", expectedValue:"value1", style:"--var:value1!important;--var:value2;", testName:"!important 2"},
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{ varName:"--var", expectedValue:"value1", style:"--var:value1 !important;--var:value2;", testName:"!important (with space)"}
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];
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templates.forEach(function (template) {
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test( function () {
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let div = document.createElement("div");
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div.style.cssText = template.style;
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document.body.appendChild(div);
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let value = div.style.getPropertyValue(template.varName);
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assert_equals(value, template.expectedValue, "Expected Value should match actual value");
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document.body.removeChild(div);
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}, template.testName);
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});
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templates.forEach(function (template) {
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test( function () {
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let div = document.createElement("div");
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div.style.cssText = template.style;
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document.body.appendChild(div);
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let computedStyle = window.getComputedStyle(div);
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let value = computedStyle.getPropertyValue(template.varName);
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assert_equals(value, template.expectedValue, "Expected Value should match actual value");
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document.body.removeChild(div);
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}, template.testName +" (Computed Style)");
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});
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templates.forEach(function (template) {
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test( function () {
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let div = document.createElement("div");
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div.style.cssText = template.style;
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document.body.appendChild(div);
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let divChild = document.createElement("div");
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div.appendChild(divChild);
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let computedStyle = window.getComputedStyle(divChild);
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let value = computedStyle.getPropertyValue(template.varName);
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assert_equals(value, template.expectedValue, "Expected Value should match actual value");
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document.body.removeChild(div);
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}, template.testName +" (Cascading)");
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});
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let template2 = [
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{ varToSet:"--varUnique", setValue:"green", varNameForRetrieval:"--varUnique", expectedValue:"green", testName:"basic CSSOM.setProperty"},
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{ varToSet:"--varUnique2 ", setValue:"green", varNameForRetrieval:"--varUnique2 ", expectedValue:"", testName:"CSSOM.setProperty with space 1"},
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{ varToSet:"--varUnique3 name", setValue:"green", varNameForRetrieval:"--varUnique3 name", expectedValue:"", testName:"CSSOM.setProperty with space 2"},
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{ varToSet:"--varUnique4 name", setValue:"green", varNameForRetrieval:"--varUnique4", expectedValue:"", testName:"CSSOM.setProperty with space 3"},
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];
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template2.forEach(function (template) {
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test( function () {
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let div = document.createElement("div");
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div.style.setProperty(template.varToSet, template.setValue);
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document.body.appendChild(div);
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let computedStyle = window.getComputedStyle(div);
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let value = computedStyle.getPropertyValue(template.varNameForRetrieval);
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assert_equals(value, template.expectedValue, "Expected Value should match actual value");
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document.body.removeChild(div);
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}, template.testName);
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});
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</script>
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</body>
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</html>
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