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<title>[37809] branches/4.5: Media: Improve handling of extensionless filenames.</title>
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<dt style="float: left; width: 6em; font-weight: bold">Revision</dt> <dd><a style="font-weight: bold" href="https://core.trac.wordpress.org/changeset/37809">37809</a><script type="application/ld+json">{"@context":"http://schema.org","@type":"EmailMessage","description":"Review this Commit","action":{"@type":"ViewAction","url":"https://core.trac.wordpress.org/changeset/37809","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>joemcgill</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2016-06-21 14:50:55 +0000 (Tue, 21 Jun 2016)</dd>
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<pre style='padding-left: 1em; margin: 2em 0; border-left: 2px solid #ccc; line-height: 1.25; font-size: 105%; font-family: sans-serif'>Media: Improve handling of extensionless filenames.
Merge of <a href="https://core.trac.wordpress.org/changeset/37756">[37756]</a> to the 4.5 branch.
See <a href="https://core.trac.wordpress.org/ticket/37111">#37111</a>.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#branches45srcwpincludesformattingphp">branches/4.5/src/wp-includes/formatting.php</a></li>
<li><a href="#branches45testsphpunittestsformattingSanitizeFileNamephp">branches/4.5/tests/phpunit/tests/formatting/SanitizeFileName.php</a></li>
</ul>
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<h3>Diff</h3>
<a id="branches45srcwpincludesformattingphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: branches/4.5/src/wp-includes/formatting.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- branches/4.5/src/wp-includes/formatting.php 2016-06-21 14:49:46 UTC (rev 37808)
+++ branches/4.5/src/wp-includes/formatting.php 2016-06-21 14:50:55 UTC (rev 37809)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -1364,7 +1364,8 @@
</span><span class="cx" style="display: block; padding: 0 10px"> * operating systems and special characters requiring special escaping
</span><span class="cx" style="display: block; padding: 0 10px"> * to manipulate at the command line. Replaces spaces and consecutive
</span><span class="cx" style="display: block; padding: 0 10px"> * dashes with a single dash. Trims period, dash and underscore from beginning
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- * and end of filename.
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ * and end of filename. It is not guaranteed that this function will return a
+ * filename that is allowed to be uploaded.
</ins><span class="cx" style="display: block; padding: 0 10px"> *
</span><span class="cx" style="display: block; padding: 0 10px"> * @since 2.1.0
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -1389,6 +1390,14 @@
</span><span class="cx" style="display: block; padding: 0 10px"> $filename = preg_replace( '/[\r\n\t -]+/', '-', $filename );
</span><span class="cx" style="display: block; padding: 0 10px"> $filename = trim( $filename, '.-_' );
</span><span class="cx" style="display: block; padding: 0 10px">
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ if ( false === strpos( $filename, '.' ) ) {
+ $mime_types = wp_get_mime_types();
+ $filetype = wp_check_filetype( 'test.' . $filename, $mime_types );
+ if ( $filetype['ext'] === $filename ) {
+ $filename = 'unnamed-file.' . $filetype['ext'];
+ }
+ }
+
</ins><span class="cx" style="display: block; padding: 0 10px"> // Split the filename into a base and extension[s]
</span><span class="cx" style="display: block; padding: 0 10px"> $parts = explode('.', $filename);
</span><span class="cx" style="display: block; padding: 0 10px">
</span></span></pre></div>
<a id="branches45testsphpunittestsformattingSanitizeFileNamephp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: branches/4.5/tests/phpunit/tests/formatting/SanitizeFileName.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- branches/4.5/tests/phpunit/tests/formatting/SanitizeFileName.php 2016-06-21 14:49:46 UTC (rev 37808)
+++ branches/4.5/tests/phpunit/tests/formatting/SanitizeFileName.php 2016-06-21 14:50:55 UTC (rev 37809)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -56,4 +56,15 @@
</span><span class="cx" style="display: block; padding: 0 10px"> function test_replaces_percent_sign() {
</span><span class="cx" style="display: block; padding: 0 10px"> $this->assertEquals( 'a22b.jpg', sanitize_file_name( 'a%22b.jpg' ) );
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+
+ function test_replaces_unnammed_file_extensions() {
+ // Test filenames with both supported and unsupported extensions.
+ $this->assertEquals( 'unnamed-file.exe', sanitize_file_name( '_.exe' ) );
+ $this->assertEquals( 'unnamed-file.jpg', sanitize_file_name( '_.jpg' ) );
+ }
+
+ function test_replaces_unnammed_file_extensionless() {
+ // Test a filenames that becomes extensionless.
+ $this->assertEquals( 'no-extension', sanitize_file_name( '_.no-extension' ) );
+ }
</ins><span class="cx" style="display: block; padding: 0 10px"> }
</span></span></pre>
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