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Enforce noopener on cross-top-level-site Blob URLs #10731

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merged 10 commits into from
Nov 18, 2024
Merged

Enforce noopener on cross-top-level-site Blob URLs #10731

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6b200c3
Enforce noopener on cross-top-level-site Blob URL navigations
recvfrom Oct 30, 2024
4786e67
Update callsites and pass urlRecord per review feedback
recvfrom Nov 4, 2024
a3aea62
Merge branch 'whatwg:main' into main
recvfrom Nov 5, 2024
bb5c5c8
Address most review feedback
recvfrom Nov 5, 2024
585567d
Update 'get noopener for window open' to take a URL record
recvfrom Nov 6, 2024
d6b6cd5
Make URL record optional for 'get noopener for window open'
recvfrom Nov 6, 2024
5a1700a
Fix whitespace in 'get noopener for window open'
recvfrom Nov 6, 2024
c624ae5
Address review feedback
recvfrom Nov 6, 2024
4485fda
Merge remote-tracking branch 'upstream/main' + fixes
recvfrom Nov 15, 2024
42f60a4
Remove duplicated line introduced during rebasing
recvfrom Nov 15, 2024
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135 changes: 90 additions & 45 deletions source
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Original file line number Diff line number Diff line change
Expand Up @@ -25539,7 +25539,8 @@ document.body.appendChild(wbr);</code></pre>
web content.</p>

<p>To <dfn>get an element's noopener</dfn>, given an <code>a</code>, <code>area</code>, or
<code>form</code> element <var>element</var> and a string <var>target</var>:</p>
<code>form</code> element <var>element</var>, a <span>URL record</span> <var>url</var>, and a
string <var>target</var>, perform the following steps. They return a boolean.</p>

<ol>
<li><p>If <var>element</var>'s <a href="#linkTypes">link types</a> include the <code
Expand All @@ -25551,6 +25552,24 @@ document.body.appendChild(wbr);</code></pre>
<span>ASCII case-insensitive</span> match for "<code data-x="">_blank</code>", then return
true.</p></li>

<li>
<p>If <var>url</var>'s <span data-x="concept-url-scheme">scheme</span> is "<code
data-x="">blob</code>":</p>

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<ol>
<li><p>Let <var>blobOrigin</var> be <var>url</var>'s <span
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data-x="concept-url-blob-entry">blob URL entry</span>'s <span
data-x="blob-url-entry-environment">environment</span>'s <span
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data-x="concept-settings-object-origin">origin</span>.</p></li>

<li><p>Let <var>topLevelOrigin</var> be <var>element</var>'s <span>relevant settings
object</span>'s <span>top-level origin</span>.</p></li>

<li><p>If <var>blobOrigin</var> is not <span>same site</span> with <var>topLevelOrigin</var>,
then return true.</p></li>
</ol>
</li>

<li><p>Return false.</p></li>
</ol>

Expand All @@ -25571,8 +25590,14 @@ document.body.appendChild(wbr);</code></pre>
<var>targetAttributeValue</var> to the result of <span data-x="get an element's target">getting
an element's target</span> given <var>subject</var>.</p></li>

<li><p>Let <var>urlRecord</var> be the result of <span>encoding-parsing a URL</span> given
<var>subject</var>'s <code data-x="attr-hyperlink-href">href</code> attribute value, relative to
<var>subject</var>'s <span>node document</span>.</p></li>

<li><p>If <var>urlRecord</var> is failure, then return.</p></li>

<li><p>Let <var>noopener</var> be the result of <span data-x="get an element's noopener">getting
an element's noopener</span> with <var>subject</var> and
an element's noopener</span> with <var>subject</var>, <var>urlRecord</var>, and
<var>targetAttributeValue</var>.</p></li>

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<li><p>Let <var>targetNavigable</var> be the first return value of applying <span>the rules for
Expand All @@ -25581,11 +25606,8 @@ document.body.appendChild(wbr);</code></pre>

<li><p>If <var>targetNavigable</var> is null, then return.</p></li>

<li><p>Let <var>urlString</var> be the result of <span>encoding-parsing-and-serializing a
URL</span> given <var>subject</var>'s <code data-x="attr-hyperlink-href">href</code> attribute
value, relative to <var>subject</var>'s <span>node document</span>.</p></li>

<li><p>If <var>urlString</var> is failure, then return.</p></li>
<li><p>Let <var>urlString</var> be the result of applying the <span
data-x="concept-url-serializer">URL serializer</span> to <var>urlRecord</var>.</p></li>

<li><p>If <var>hyperlinkSuffix</var> is non-null, then append it to
<var>urlString</var>.</p></li>
Expand Down Expand Up @@ -60001,7 +60023,8 @@ fur
<var>formTarget</var>.</p></li>

<li><p>Let <var>noopener</var> be the result of <span data-x="get an element's noopener">getting
an element's noopener</span> with <var>form</var> and <var>target</var>.</p></li>
an element's noopener</span> with <var>form</var>, <var>parsed action</var>, and
<var>target</var>.</p></li>

<li><p>Let <var>targetNavigable</var> be the first return value of applying <span>the rules for
choosing a navigable</span> given <var>target</var>, <var>form</var>'s <span>node
Expand Down Expand Up @@ -89798,23 +89821,31 @@ dictionary <dfn dictionary>WindowPostMessageOptions</dfn> : <span>StructuredSeri

<div w-nodev>

<p>The <dfn>window open steps</dfn>, given a string <var>url</var>, a string <var>target</var>,
and a string <var>features</var>, are as follows:</p>
<p>To <dfn>get noopener for window open</dfn>, given a <span>Document</span>
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<var>sourceDocument</var>, an <span>ordered map</span> <var>tokenizedFeatures</var>, and a
<span>URL record</span> or failure <var>url</var>, perform the following steps. They return a
boolean.</p>

<ol>
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<li><p>If the <span>event loop</span>'s <span>termination nesting level</span> is nonzero,
return null.</p></li>
<li>
<p>If <var>url</var> is not failure and <var>url</var>'s <span
data-x="concept-url-scheme">scheme</span> is "<code data-x="">blob</code>":</p>

<li><p>Let <var>sourceDocument</var> be the <span>entry global object</span>'s <span
data-x="concept-document-window">associated <code>Document</code></span>.</p></li>
<ol>
<li><p>Let <var>blobOrigin</var> be <var>url</var>'s <span
data-x="concept-url-blob-entry">blob URL entry</span>'s <span
data-x="blob-url-entry-environment">environment</span>'s <span
data-x="concept-settings-object-origin">origin</span>.</p></li>
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<li><p>If <var>target</var> is the empty string, then set <var>target</var> to "<code
data-x="">_blank</code>".</p></li>
<li><p>Let <var>topLevelOrigin</var> be <var>sourceDocument</var>'s <span>relevant settings
object</span>'s <span>top-level origin</span>.</p></li>

<li><p>Let <var>tokenizedFeatures</var> be the result of <span
data-x="concept-window-open-features-tokenize">tokenizing</span> <var>features</var>.</p></li>
<li><p>If <var>blobOrigin</var>is not <span>same site</span> with <var>topLevelOrigin</var>,
then return true.</p></li>
</ol>
</li>

<li><p>Let <var>noopener</var> and <var>noreferrer</var> be false.</p></li>
<li><p>Let <var>noopener</var> be false.</p></li>

<li>
<p>If <var>tokenizedFeatures</var>["<code data-x="">noopener</code>"] <span data-x="map
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Expand All @@ -89831,6 +89862,27 @@ dictionary <dfn dictionary>WindowPostMessageOptions</dfn> : <span>StructuredSeri
</ol>
</li>

<li><p>Return <var>noopener</var>.</p></li>
</ol>

<p>The <dfn>window open steps</dfn>, given a string <var>url</var>, a string <var>target</var>,
and a string <var>features</var>, are as follows:</p>

<ol>
<li><p>If the <span>event loop</span>'s <span>termination nesting level</span> is nonzero,
then return null.</p></li>
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<li><p>Let <var>sourceDocument</var> be the <span>entry global object</span>'s <span
data-x="concept-document-window">associated <code>Document</code></span>.</p></li>

<li><p>If <var>target</var> is the empty string, then set <var>target</var> to "<code
data-x="">_blank</code>".</p></li>

<li><p>Let <var>tokenizedFeatures</var> be the result of <span
data-x="concept-window-open-features-tokenize">tokenizing</span> <var>features</var>.</p></li>

<li><p>Let <var>noreferrer</var> be false.</p></li>

<li>
<p>If <var>tokenizedFeatures</var>["<code data-x="">noreferrer</code>"] <span data-x="map
exists">exists</span>, then:</p>
Expand All @@ -89846,6 +89898,17 @@ dictionary <dfn dictionary>WindowPostMessageOptions</dfn> : <span>StructuredSeri
</ol>
</li>

<li><p>Let <var>urlRecord</var> be the <span>URL record</span>
<code>about:blank</code>.</p></li>

<li><p>If <var>url</var> is not the empty string, then set <var>urlRecord</var> to the result
of <span>encoding-parsing a URL</span> given <var>url</var>, relative to the <span>entry
settings object</span>.</p></li>

<li><p>Let <var>noopener</var> be the result of <span
data-x="get noopener for window open">getting noopener for window open</span> with
<var>sourceDocument</var>, <var>tokenizedFeatures</var>, and <var>urlRecord</var>.</p></li>

<li><p>Let <var>referrerPolicy</var> be the empty string.</p></li>

<li><p>If <var>noreferrer</var> is true, then set <var>noopener</var> to true and set
Expand All @@ -89866,6 +89929,9 @@ dictionary <dfn dictionary>WindowPostMessageOptions</dfn> : <span>StructuredSeri

<li><p>If <var>targetNavigable</var> is null, then return null.</p></li>

<li><p>If <var>urlRecord</var> is failure, then throw a <span>"<code>SyntaxError</code>"</span>
<code>DOMException</code>.</p></li>
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<li>
<p>If <var>windowType</var> is either "<code data-x="">new and unrestricted</code>" or "<code
data-x="">new with no opener</code>", then:</p>
Expand All @@ -89879,16 +89945,6 @@ dictionary <dfn dictionary>WindowPostMessageOptions</dfn> : <span>StructuredSeri
data-x="nav-bc">active browsing context</span> given
<var>tokenizedFeatures</var>. <ref>CSSOMVIEW</ref></p></li>

<li><p>Let <var>urlRecord</var> be the <span>URL record</span>
<code>about:blank</code>.</p></li>

<li><p>If <var>url</var> is not the empty string, then set <var>urlRecord</var> to the result
of <span>encoding-parsing a URL</span> given <var>url</var>, relative to the <span>entry
settings object</span>.</p></li>

<li><p>If <var>urlRecord</var> is failure, then throw a <span>"<code>SyntaxError</code>"</span>
<code>DOMException</code>.</p></li>

<li>
<p>If <var>urlRecord</var> <span>matches <code>about:blank</code></span>, then perform the
<span>URL and history update steps</span> given <var>targetNavigable</var>'s <span
Expand All @@ -89910,22 +89966,11 @@ dictionary <dfn dictionary>WindowPostMessageOptions</dfn> : <span>StructuredSeri
<p>Otherwise:</p>

<ol>
<li>
<p>If <var>url</var> is not the empty string, then:</p>

<ol>
<li><p>Let <var>urlRecord</var> be the result of <span>encoding-parsing a URL</span>
<var>url</var>, relative to the <span>entry settings object</span>.</p></li>

<li><p>If <var>urlRecord</var> is failure, then throw a
<span>"<code>SyntaxError</code>"</span> <code>DOMException</code>.</p></li>

<li><p><span>Navigate</span><!--DONAV window.open()--> <var>targetNavigable</var> to
<var>urlRecord</var> using <var>sourceDocument</var>, with <i
data-x="navigation-referrer-policy">referrerPolicy</i> set to <var>referrerPolicy</var> and
<i><span>exceptionsEnabled</span></i> set to true.</p></li>
</ol>
</li>
<li><p>If <var>url</var> is not the empty string, then
<span>navigate</span><!--DONAV window.open()--> <var>targetNavigable</var> to
<var>urlRecord</var> using <var>sourceDocument</var>, with <i
data-x="navigation-referrer-policy">referrerPolicy</i> set to <var>referrerPolicy</var> and
<i><span>exceptionsEnabled</span></i> set to true.</p></li>

<li><p>If <var>noopener</var> is false, then set <var>targetNavigable</var>'s <span
data-x="nav-bc">active browsing context</span>'s <span>opener browsing context</span> to
Expand Down