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Disallow file URLs #2329

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merged 7 commits into from
Jun 10, 2022
Merged

Disallow file URLs #2329

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5406c4d
Disallow file URLs
iherman Jun 7, 2022
c2578fa
Merge remote-tracking branch 'remotes/origin/main' into disallow-file…
mattgarrish Jun 7, 2022
b4865e9
Added change item; took care of Matt's comments
iherman Jun 7, 2022
baa28c7
Merge branch 'main' into disallow-file-scheme
iherman Jun 7, 2022
1597762
Merge branch 'main' into disallow-file-scheme
iherman Jun 7, 2022
4fdab54
Handled Brady's comments
iherman Jun 8, 2022
64670ea
Merge branch 'disallow-file-scheme' of https://github.com/w3c/epub-sp…
iherman Jun 8, 2022
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15 changes: 14 additions & 1 deletion epub33/core/index.html
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Original file line number Diff line number Diff line change
Expand Up @@ -1502,6 +1502,19 @@ <h3>Data URLs</h3>
restrictions</a>).</p>
</section>

<section id="sec-file-urls">
<h3>File URLs</h3>
<p>
The <a data-cite="rfc8089#"><code>file:</code> URL scheme</a> is defined in [[rfc8089]] as "identifying an
object (a 'file') stored in a structured object naming and accessing environment on a host (a 'file system')."
It is typically used to retrieve files from within one's own computer.
</p>
<p>
Using a file URL in an [=EPUB publication=], which can be transferred among different hosts, represents a security risk.
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As a consequence, [=EPUB creators=] MUST NOT use file URLs in EPUB publications.
</p>
</section>

<section id="sec-xml-constraints">
<h3>XML conformance</h3>

Expand Down Expand Up @@ -3194,7 +3207,7 @@ <h4>The <code>dir</code> attribute</h4>
<h4>The <code>href</code> attribute</h4>

<p>A [=valid URL string=] [[url]] that references a resource. If the value is an <a>absolute-URL
string</a>, it SHOULD NOT use the "file" URI scheme [[rfc8089]].</p>
string</a>, it MUST NOT use the "file" URI scheme [[rfc8089]].</p>
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<aside class="example" title="Linking a metadata record">
<pre>&lt;package …>
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7 changes: 7 additions & 0 deletions epub33/rs/index.html
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Expand Up @@ -299,6 +299,13 @@ <h4>Data URLs</h4>
content documents.</p>
</section>

<section id="sec-epub-rs-conf-file-urls">
<h4>File URLs</h4>
<p id="confreq-rs-file-urls">
Reading systems MUST prevent file URLs [[rfc8089]] from opening.
</p>
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</section>

<section id="sec-epub-rs-conf-xml">
<h4>XML processing</h4>

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