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<title>[46901] branches/5.2: Ensure that a user can publish_posts before making a post sticky.</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/46901">46901</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/46901","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>whyisjake</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2019-12-12 18:17:35 +0000 (Thu, 12 Dec 2019)</dd>
</dl>
<pre style='padding-left: 1em; margin: 2em 0; border-left: 2px solid #ccc; line-height: 1.25; font-size: 105%; font-family: sans-serif'>Ensure that a user can publish_posts before making a post sticky.
Props: danielbachhuber, whyisjake, peterwilson, xknown.
Prevent stored XSS through wp_targeted_link_rel().
Props: vortfu, whyisjake, peterwilsoncc, xknown, SergeyBiryukov, flaviozavan.
Update `wp_kses_bad_protocol()` to recognize `:` on uri attributes,
`wp_kses_bad_protocol()` makes sure to validate that uri attributes don't contain invalid/or not allowed protocols. While this works fine in most cases, there's a risk that by using the colon html5 named entity, one is able to bypass this function.
Brings <a href="https://core.trac.wordpress.org/changeset/46895">r46895</a> to the 5.3 branch.
Props: xknown, nickdaugherty, peterwilsoncc.
Prevent stored XSS in the block editor.
Brings <a href="https://core.trac.wordpress.org/changeset/46896">r46896</a> to the 5.3 branch.
Prevent escaped unicode characters become unescaped in unsafe HTML during JSON decoding.
Props: aduth, epiqueras.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#branches52srcwpincludesblocksphp">branches/5.2/src/wp-includes/blocks.php</a></li>
<li><a href="#branches52srcwpincludesdefaultfiltersphp">branches/5.2/src/wp-includes/default-filters.php</a></li>
<li><a href="#branches52srcwpincludesformattingphp">branches/5.2/src/wp-includes/formatting.php</a></li>
<li><a href="#branches52srcwpincludesksesphp">branches/5.2/src/wp-includes/kses.php</a></li>
<li><a href="#branches52srcwpincludesrestapiendpointsclasswprestpostscontrollerphp">branches/5.2/src/wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php</a></li>
<li><a href="#branches52testsphpunittestsblocksblocktypephp">branches/5.2/tests/phpunit/tests/blocks/block-type.php</a></li>
<li><a href="#branches52testsphpunittestsformattingWPTargetedLinkRelphp">branches/5.2/tests/phpunit/tests/formatting/WPTargetedLinkRel.php</a></li>
<li><a href="#branches52testsphpunittestsksesphp">branches/5.2/tests/phpunit/tests/kses.php</a></li>
</ul>
<h3>Property Changed</h3>
<ul>
<li><a href="#branches52">branches/5.2/</a></li>
</ul>
</div>
<div id="patch">
<h3>Diff</h3>
<span class="cx" style="display: block; padding: 0 10px">Index: branches/5.2
</span><span class="cx" style="display: block; padding: 0 10px">===================================================================
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">--- branches/5.2 2019-12-12 18:10:56 UTC (rev 46900)
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+++ branches/5.2 2019-12-12 18:17:35 UTC (rev 46901)
</ins><a id="branches52"></a>
<div class="propset"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Property changes: branches/5.2</h4>
<pre class="diff"><span>
</span></pre></div>
<a id="svnmergeinfo"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: svn:mergeinfo</h4></div>
<span class="cx" style="display: block; padding: 0 10px"> /branches/3.4:21757
</span><span class="cx" style="display: block; padding: 0 10px"> /branches/4.9:43557,43622
</span><span class="cx" style="display: block; padding: 0 10px"> /branches/5.0:43681-43682,43684-43688,43719-43720,43723,43726-43727,43729-43731,43734-43744,43747,43751-43754,43758,43760-43765,43767-43770,43772,43774-43781,43783,43785,43790-43806,43808-43821,43825,43828,43830-43834,43836-43843,43846-43863,43867-43889,43891-43894,43897-43905,43908-43909,43911-43929,43931-43942,43946-43947,43949-43956,43959-43964,43967-43969,43988,43994,44014,44017,44047,44183,44185,44187-44206,44208-44213,44231-44232,44235,44248,44284,44287-44288
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-/trunk:45284-45285,45287,45289,45292,45296,45298,45300-45301,45308-45311,45316,45319,45322,45324,45326,45328,45331,45334,45336,45338,45340,45342,45344-45346,45348,45350,45352,45357,45365,45367,45376,45403,45411,45416,45425,45463,45481,45488,45495,45501-45503,45506-45507,45515,45520,45522,45526-45527,45529,45551,45563-45564,45569,45572,45576,45618-45619,45626,45655-45656,45673,45684,45701,45722,45725,45727,45750,45761,45764,45861,45863,45867,45869,45935-45936,45971,45979,45990,45997,46019,46073,46472,46474-46476,46478,46483,46485
</del><span class="cx" style="display: block; padding: 0 10px">\ No newline at end of property
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+/trunk:45284-45285,45287,45289,45292,45296,45298,45300-45301,45308-45311,45316,45319,45322,45324,45326,45328,45331,45334,45336,45338,45340,45342,45344-45346,45348,45350,45352,45357,45365,45367,45376,45403,45411,45416,45425,45463,45481,45488,45495,45501-45503,45506-45507,45515,45520,45522,45526-45527,45529,45551,45563-45564,45569,45572,45576,45618-45619,45626,45655-45656,45673,45684,45701,45722,45725,45727,45750,45761,45764,45861,45863,45867,45869,45935-45936,45971,45979,45990,45997,46019,46073,46472,46474-46476,46478,46483,46485,46893-46896
</ins><span class="cx" style="display: block; padding: 0 10px">\ No newline at end of property
</span><a id="branches52srcwpincludesblocksphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: branches/5.2/src/wp-includes/blocks.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- branches/5.2/src/wp-includes/blocks.php 2019-12-12 18:10:56 UTC (rev 46900)
+++ branches/5.2/src/wp-includes/blocks.php 2019-12-12 18:17:35 UTC (rev 46901)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -74,11 +74,11 @@
</span><span class="cx" style="display: block; padding: 0 10px"> * @since 5.0.0
</span><span class="cx" style="display: block; padding: 0 10px"> * @see parse_blocks()
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- * @param string $block_type Full Block type to look for.
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ * @param string $block_name Full Block type to look for.
</ins><span class="cx" style="display: block; padding: 0 10px"> * @param int|string|WP_Post|null $post Optional. Post content, post ID, or post object. Defaults to global $post.
</span><span class="cx" style="display: block; padding: 0 10px"> * @return bool Whether the post content contains the specified block.
</span><span class="cx" style="display: block; padding: 0 10px"> */
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-function has_block( $block_type, $post = null ) {
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+function has_block( $block_name, $post = null ) {
</ins><span class="cx" style="display: block; padding: 0 10px"> if ( ! has_blocks( $post ) ) {
</span><span class="cx" style="display: block; padding: 0 10px"> return false;
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -90,7 +90,30 @@
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- return false !== strpos( $post, '<!-- wp:' . $block_type . ' ' );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ /*
+ * Normalize block name to include namespace, if provided as non-namespaced.
+ * This matches behavior for WordPress 5.0.0 - 5.3.0 in matching blocks by
+ * their serialized names.
+ */
+ if ( false === strpos( $block_name, '/' ) ) {
+ $block_name = 'core/' . $block_name;
+ }
+
+ // Test for existence of block by its fully qualified name.
+ $has_block = false !== strpos( $post, '<!-- wp:' . $block_name . ' ' );
+
+ if ( ! $has_block ) {
+ /*
+ * If the given block name would serialize to a different name, test for
+ * existence by the serialized form.
+ */
+ $serialized_block_name = strip_core_block_namespace( $block_name );
+ if ( $serialized_block_name !== $block_name ) {
+ $has_block = false !== strpos( $post, '<!-- wp:' . $serialized_block_name . ' ' );
+ }
+ }
+
+ return $has_block;
</ins><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> /**
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -114,6 +137,207 @@
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> /**
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ * Given an array of attributes, returns a string in the serialized attributes
+ * format prepared for post content.
+ *
+ * The serialized result is a JSON-encoded string, with unicode escape sequence
+ * substitution for characters which might otherwise interfere with embedding
+ * the result in an HTML comment.
+ *
+ * @since 5.3.1
+ *
+ * @param array $attributes Attributes object.
+ * @return string Serialized attributes.
+ */
+function serialize_block_attributes( $block_attributes ) {
+ $encoded_attributes = json_encode( $block_attributes );
+ $encoded_attributes = preg_replace( '/--/', '\\u002d\\u002d', $encoded_attributes );
+ $encoded_attributes = preg_replace( '/</', '\\u003c', $encoded_attributes );
+ $encoded_attributes = preg_replace( '/>/', '\\u003e', $encoded_attributes );
+ $encoded_attributes = preg_replace( '/&/', '\\u0026', $encoded_attributes );
+ // Regex: /\\"/
+ $encoded_attributes = preg_replace( '/\\\\"/', '\\u0022', $encoded_attributes );
+
+ return $encoded_attributes;
+}
+
+/**
+ * Returns the block name to use for serialization. This will remove the default
+ * "core/" namespace from a block name.
+ *
+ * @since 5.3.1
+ *
+ * @param string $block_name Original block name.
+ * @return string Block name to use for serialization.
+ */
+function strip_core_block_namespace( $block_name = null ) {
+ if ( is_string( $block_name ) && 0 === strpos( $block_name, 'core/' ) ) {
+ return substr( $block_name, 5 );
+ }
+
+ return $block_name;
+}
+
+/**
+ * Returns the content of a block, including comment delimiters.
+ *
+ * @since 5.3.1
+ *
+ * @param string $block_name Block name.
+ * @param array $attributes Block attributes.
+ * @param string $content Block save content.
+ * @return string Comment-delimited block content.
+ */
+function get_comment_delimited_block_content( $block_name = null, $block_attributes, $block_content ) {
+ if ( is_null( $block_name ) ) {
+ return $block_content;
+ }
+
+ $serialized_block_name = strip_core_block_namespace( $block_name );
+ $serialized_attributes = empty( $block_attributes ) ? '' : serialize_block_attributes( $block_attributes ) . ' ';
+
+ if ( empty( $block_content ) ) {
+ return sprintf( '<!-- wp:%s %s/-->', $serialized_block_name, $serialized_attributes );
+ }
+
+ return sprintf(
+ '<!-- wp:%s %s-->%s<!-- /wp:%s -->',
+ $serialized_block_name,
+ $serialized_attributes,
+ $block_content,
+ $serialized_block_name
+ );
+}
+
+/**
+ * Returns the content of a block, including comment delimiters, serializing all
+ * attributes from the given parsed block.
+ *
+ * This should be used when preparing a block to be saved to post content.
+ * Prefer `render_block` when preparing a block for display. Unlike
+ * `render_block`, this does not evaluate a block's `render_callback`, and will
+ * instead preserve the markup as parsed.
+ *
+ * @since 5.3.1
+ *
+ * @param WP_Block_Parser_Block $block A single parsed block object.
+ * @return string String of rendered HTML.
+ */
+function serialize_block( $block ) {
+ $block_content = '';
+
+ $index = 0;
+ foreach ( $block['innerContent'] as $chunk ) {
+ $block_content .= is_string( $chunk ) ? $chunk : serialize_block( $block['innerBlocks'][ $index++ ] );
+ }
+
+ if ( ! is_array( $block['attrs'] ) ) {
+ $block['attrs'] = array();
+ }
+
+ return get_comment_delimited_block_content(
+ $block['blockName'],
+ $block['attrs'],
+ $block_content
+ );
+}
+
+/**
+ * Returns a joined string of the aggregate serialization of the given parsed
+ * blocks.
+ *
+ * @since 5.3.1
+ *
+ * @param WP_Block_Parser_Block[] $blocks Parsed block objects.
+ * @return string String of rendered HTML.
+ */
+function serialize_blocks( $blocks ) {
+ return implode( '', array_map( 'serialize_block', $blocks ) );
+}
+
+/**
+ * Filters and sanitizes block content to remove non-allowable HTML from
+ * parsed block attribute values.
+ *
+ * @since 5.3.1
+ *
+ * @param string $text Text that may contain block content.
+ * @param array[]|string $allowed_html An array of allowed HTML elements
+ * and attributes, or a context name
+ * such as 'post'.
+ * @param string[] $allowed_protocols Array of allowed URL protocols.
+ * @return string The filtered and sanitized content result.
+ */
+function filter_block_content( $text, $allowed_html = 'post', $allowed_protocols = array() ) {
+ $result = '';
+
+ $blocks = parse_blocks( $text );
+ foreach ( $blocks as $block ) {
+ $block = filter_block_kses( $block, $allowed_html, $allowed_protocols );
+ $result .= serialize_block( $block );
+ }
+
+ return $result;
+}
+
+/**
+ * Filters and sanitizes a parsed block to remove non-allowable HTML from block
+ * attribute values.
+ *
+ * @since 5.3.1
+ *
+ * @param WP_Block_Parser_Block $block The parsed block object.
+ * @param array[]|string $allowed_html An array of allowed HTML
+ * elements and attributes, or a
+ * context name such as 'post'.
+ * @param string[] $allowed_protocols Allowed URL protocols.
+ * @return array The filtered and sanitized block object result.
+ */
+function filter_block_kses( $block, $allowed_html, $allowed_protocols = array() ) {
+ $block['attrs'] = filter_block_kses_value( $block['attrs'], $allowed_html, $allowed_protocols );
+
+ if ( is_array( $block['innerBlocks'] ) ) {
+ foreach ( $block['innerBlocks'] as $i => $inner_block ) {
+ $block['innerBlocks'][ $i ] = filter_block_kses( $inner_block, $allowed_html, $allowed_protocols );
+ }
+ }
+
+ return $block;
+}
+
+/**
+ * Filters and sanitizes a parsed block attribute value to remove non-allowable
+ * HTML.
+ *
+ * @since 5.3.1
+ *
+ * @param mixed $value The attribute value to filter.
+ * @param array[]|string $allowed_html An array of allowed HTML elements
+ * and attributes, or a context name
+ * such as 'post'.
+ * @param string[] $allowed_protocols Array of allowed URL protocols.
+ * @return array The filtered and sanitized result.
+ */
+function filter_block_kses_value( $value, $allowed_html, $allowed_protocols = array() ) {
+ if ( is_array( $value ) ) {
+ foreach ( $value as $key => $inner_value ) {
+ $filtered_key = filter_block_kses_value( $key, $allowed_html, $allowed_protocols );
+ $filtered_value = filter_block_kses_value( $inner_value, $allowed_html, $allowed_protocols );
+
+ if ( $filtered_key !== $key ) {
+ unset( $value[ $key ] );
+ }
+
+ $value[ $filtered_key ] = $filtered_value;
+ }
+ } elseif ( is_string( $value ) ) {
+ return wp_kses( $value, $allowed_html, $allowed_protocols );
+ }
+
+ return $value;
+}
+
+/**
</ins><span class="cx" style="display: block; padding: 0 10px"> * Parses blocks out of a content string, and renders those appropriate for the excerpt.
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span><span class="cx" style="display: block; padding: 0 10px"> * As the excerpt should be a small string of text relevant to the full post content,
</span></span></pre></div>
<a id="branches52srcwpincludesdefaultfiltersphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: branches/5.2/src/wp-includes/default-filters.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- branches/5.2/src/wp-includes/default-filters.php 2019-12-12 18:10:56 UTC (rev 46900)
+++ branches/5.2/src/wp-includes/default-filters.php 2019-12-12 18:17:35 UTC (rev 46901)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -245,6 +245,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> add_filter( 'tiny_mce_before_init', '_mce_set_direction' );
</span><span class="cx" style="display: block; padding: 0 10px"> add_filter( 'teeny_mce_before_init', '_mce_set_direction' );
</span><span class="cx" style="display: block; padding: 0 10px"> add_filter( 'pre_kses', 'wp_pre_kses_less_than' );
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+add_filter( 'pre_kses', 'wp_pre_kses_block_attributes', 10, 3 );
</ins><span class="cx" style="display: block; padding: 0 10px"> add_filter( 'sanitize_title', 'sanitize_title_with_dashes', 10, 3 );
</span><span class="cx" style="display: block; padding: 0 10px"> add_action( 'check_comment_flood', 'check_comment_flood_db', 10, 4 );
</span><span class="cx" style="display: block; padding: 0 10px"> add_filter( 'comment_flood_filter', 'wp_throttle_comment_flood', 10, 3 );
</span></span></pre></div>
<a id="branches52srcwpincludesformattingphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: branches/5.2/src/wp-includes/formatting.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- branches/5.2/src/wp-includes/formatting.php 2019-12-12 18:10:56 UTC (rev 46900)
+++ branches/5.2/src/wp-includes/formatting.php 2019-12-12 18:17:35 UTC (rev 46901)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -3043,10 +3043,28 @@
</span><span class="cx" style="display: block; padding: 0 10px"> */
</span><span class="cx" style="display: block; padding: 0 10px"> function wp_targeted_link_rel( $text ) {
</span><span class="cx" style="display: block; padding: 0 10px"> // Don't run (more expensive) regex if no links with targets.
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- if ( stripos( $text, 'target' ) !== false && stripos( $text, '<a ' ) !== false ) {
- $text = preg_replace_callback( '|<a\s([^>]*target\s*=[^>]*)>|i', 'wp_targeted_link_rel_callback', $text );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ if ( stripos( $text, 'target' ) === false || stripos( $text, '<a ' ) === false || is_serialized( $text ) ) {
+ return $text;
</ins><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ $script_and_style_regex = '/<(script|style).*?<\/\\1>/si';
+
+ preg_match_all( $script_and_style_regex, $text, $matches );
+ $extra_parts = $matches[0];
+ $html_parts = preg_split( $script_and_style_regex, $text );
+
+ foreach ( $html_parts as &$part ) {
+ $part = preg_replace_callback( '|<a\s([^>]*target\s*=[^>]*)>|i', 'wp_targeted_link_rel_callback', $part );
+ }
+
+ $text = '';
+ for ( $i = 0; $i < count( $html_parts ); $i++ ) {
+ $text .= $html_parts[ $i ];
+ if ( isset( $extra_parts[ $i ] ) ) {
+ $text .= $extra_parts[ $i ];
+ }
+ }
+
</ins><span class="cx" style="display: block; padding: 0 10px"> return $text;
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -3062,9 +3080,18 @@
</span><span class="cx" style="display: block; padding: 0 10px"> * @return string HTML A Element with rel noreferrer noopener in addition to any existing values
</span><span class="cx" style="display: block; padding: 0 10px"> */
</span><span class="cx" style="display: block; padding: 0 10px"> function wp_targeted_link_rel_callback( $matches ) {
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- $link_html = $matches[1];
- $rel_match = array();
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ $link_html = $matches[1];
+ $original_link_html = $link_html;
</ins><span class="cx" style="display: block; padding: 0 10px">
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ // Consider the html escaped if there are no unescaped quotes
+ $is_escaped = ! preg_match( '/(^|[^\\\\])[\'"]/', $link_html );
+ if ( $is_escaped ) {
+ // Replace only the quotes so that they are parsable by wp_kses_hair, leave the rest as is
+ $link_html = preg_replace( '/\\\\([\'"])/', '$1', $link_html );
+ }
+
+ $atts = wp_kses_hair( $link_html, wp_allowed_protocols() );
+
</ins><span class="cx" style="display: block; padding: 0 10px"> /**
</span><span class="cx" style="display: block; padding: 0 10px"> * Filters the rel values that are added to links with `target` attribute.
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -3075,35 +3102,21 @@
</span><span class="cx" style="display: block; padding: 0 10px"> */
</span><span class="cx" style="display: block; padding: 0 10px"> $rel = apply_filters( 'wp_targeted_link_rel', 'noopener noreferrer', $link_html );
</span><span class="cx" style="display: block; padding: 0 10px">
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- // Avoid additional regex if the filter removes rel values.
- if ( ! $rel ) {
- return "<a $link_html>";
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ // Return early if no rel values to be added or if no actual target attribute
+ if ( ! $rel || ! isset( $atts['target'] ) ) {
+ return "<a $original_link_html>";
</ins><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- // Value with delimiters, spaces around are optional.
- $attr_regex = '|rel\s*=\s*?(\\\\{0,1}["\'])(.*?)\\1|i';
- preg_match( $attr_regex, $link_html, $rel_match );
-
- if ( empty( $rel_match[0] ) ) {
- // No delimiters, try with a single value and spaces, because `rel = va"lue` is totally fine...
- $attr_regex = '|rel\s*=(\s*)([^\s]*)|i';
- preg_match( $attr_regex, $link_html, $rel_match );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ if ( isset( $atts['rel'] ) ) {
+ $all_parts = preg_split( '/\s/', "{$atts['rel']['value']} $rel", -1, PREG_SPLIT_NO_EMPTY );
+ $rel = implode( ' ', array_unique( $all_parts ) );
</ins><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- if ( ! empty( $rel_match[0] ) ) {
- $parts = preg_split( '|\s+|', strtolower( $rel_match[2] ) );
- $parts = array_map( 'esc_attr', $parts );
- $needed = explode( ' ', $rel );
- $parts = array_unique( array_merge( $parts, $needed ) );
- $delimiter = trim( $rel_match[1] ) ? $rel_match[1] : '"';
- $rel = 'rel=' . $delimiter . trim( implode( ' ', $parts ) ) . $delimiter;
- $link_html = str_replace( $rel_match[0], $rel, $link_html );
- } elseif ( preg_match( '|target\s*=\s*?\\\\"|', $link_html ) ) {
- $link_html .= " rel=\\\"$rel\\\"";
- } elseif ( preg_match( '#(target|href)\s*=\s*?\'#', $link_html ) ) {
- $link_html .= " rel='$rel'";
- } else {
- $link_html .= " rel=\"$rel\"";
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ $atts['rel']['whole'] = 'rel="' . esc_attr( $rel ) . '"';
+ $link_html = join( ' ', array_column( $atts, 'whole' ) );
+
+ if ( $is_escaped ) {
+ $link_html = preg_replace( '/[\'"]/', '\\\\$0', $link_html );
</ins><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> return "<a $link_html>";
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -4808,6 +4821,31 @@
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> /**
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ * Remove non-allowable HTML from parsed block attribute values when filtering
+ * in the post context.
+ *
+ * @since 5.3.1
+ *
+ * @param string $string Content to be run through KSES.
+ * @param array[]|string $allowed_html An array of allowed HTML elements
+ * and attributes, or a context name
+ * such as 'post'.
+ * @param string[] $allowed_protocols Array of allowed URL protocols.
+ * @return string Filtered text to run through KSES.
+ */
+function wp_pre_kses_block_attributes( $string, $allowed_html, $allowed_protocols ) {
+ /*
+ * `filter_block_content` is expected to call `wp_kses`. Temporarily remove
+ * the filter to avoid recursion.
+ */
+ remove_filter( 'pre_kses', 'wp_pre_kses_block_attributes', 10 );
+ $string = filter_block_content( $string, $allowed_html, $allowed_protocols );
+ add_filter( 'pre_kses', 'wp_pre_kses_block_attributes', 10, 3 );
+
+ return $string;
+}
+
+/**
</ins><span class="cx" style="display: block; padding: 0 10px"> * WordPress implementation of PHP sprintf() with filters.
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span><span class="cx" style="display: block; padding: 0 10px"> * @since 2.5.0
</span></span></pre></div>
<a id="branches52srcwpincludesksesphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: branches/5.2/src/wp-includes/kses.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- branches/5.2/src/wp-includes/kses.php 2019-12-12 18:10:56 UTC (rev 46900)
+++ branches/5.2/src/wp-includes/kses.php 2019-12-12 18:17:35 UTC (rev 46901)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -1658,7 +1658,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> */
</span><span class="cx" style="display: block; padding: 0 10px"> function wp_kses_bad_protocol_once( $string, $allowed_protocols, $count = 1 ) {
</span><span class="cx" style="display: block; padding: 0 10px"> $string = preg_replace( '/(�*58(?![;0-9])|�*3a(?![;a-f0-9]))/i', '$1;', $string );
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- $string2 = preg_split( '/:|�*58;|�*3a;/i', $string, 2 );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ $string2 = preg_split( '/:|�*58;|�*3a;|:/i', $string, 2 );
</ins><span class="cx" style="display: block; padding: 0 10px"> if ( isset( $string2[1] ) && ! preg_match( '%/\?%', $string2[0] ) ) {
</span><span class="cx" style="display: block; padding: 0 10px"> $string = trim( $string2[1] );
</span><span class="cx" style="display: block; padding: 0 10px"> $protocol = wp_kses_bad_protocol_once2( $string2[0], $allowed_protocols );
</span></span></pre></div>
<a id="branches52srcwpincludesrestapiendpointsclasswprestpostscontrollerphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: branches/5.2/src/wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- branches/5.2/src/wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php 2019-12-12 18:10:56 UTC (rev 46900)
+++ branches/5.2/src/wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php 2019-12-12 18:17:35 UTC (rev 46901)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -499,7 +499,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> return new WP_Error( 'rest_cannot_edit_others', __( 'Sorry, you are not allowed to create posts as this user.' ), array( 'status' => rest_authorization_required_code() ) );
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- if ( ! empty( $request['sticky'] ) && ! current_user_can( $post_type->cap->edit_others_posts ) ) {
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ if ( ! empty( $request['sticky'] ) && ! current_user_can( $post_type->cap->edit_others_posts ) && ! current_user_can( $post_type->cap->publish_posts ) ) {
</ins><span class="cx" style="display: block; padding: 0 10px"> return new WP_Error( 'rest_cannot_assign_sticky', __( 'Sorry, you are not allowed to make posts sticky.' ), array( 'status' => rest_authorization_required_code() ) );
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -654,7 +654,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> return new WP_Error( 'rest_cannot_edit_others', __( 'Sorry, you are not allowed to update posts as this user.' ), array( 'status' => rest_authorization_required_code() ) );
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- if ( ! empty( $request['sticky'] ) && ! current_user_can( $post_type->cap->edit_others_posts ) ) {
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ if ( ! empty( $request['sticky'] ) && ! current_user_can( $post_type->cap->edit_others_posts ) && ! current_user_can( $post_type->cap->publish_posts ) ) {
</ins><span class="cx" style="display: block; padding: 0 10px"> return new WP_Error( 'rest_cannot_assign_sticky', __( 'Sorry, you are not allowed to make posts sticky.' ), array( 'status' => rest_authorization_required_code() ) );
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -956,7 +956,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> * @return stdClass|WP_Error Post object or WP_Error.
</span><span class="cx" style="display: block; padding: 0 10px"> */
</span><span class="cx" style="display: block; padding: 0 10px"> protected function prepare_item_for_database( $request ) {
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- $prepared_post = new stdClass;
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ $prepared_post = new stdClass();
</ins><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> // Post ID.
</span><span class="cx" style="display: block; padding: 0 10px"> if ( isset( $request['id'] ) ) {
</span></span></pre></div>
<a id="branches52testsphpunittestsblocksblocktypephp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: branches/5.2/tests/phpunit/tests/blocks/block-type.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- branches/5.2/tests/phpunit/tests/blocks/block-type.php 2019-12-12 18:10:56 UTC (rev 46900)
+++ branches/5.2/tests/phpunit/tests/blocks/block-type.php 2019-12-12 18:17:35 UTC (rev 46901)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -304,6 +304,24 @@
</span><span class="cx" style="display: block; padding: 0 10px"> $this->assertFalse( has_block( 'core/fake' ) );
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ public function test_post_has_block_serialized_name() {
+ $content = '<!-- wp:serialized /--><!-- wp:core/normalized /--><!-- wp:plugin/third-party /-->';
+
+ $this->assertTrue( has_block( 'core/serialized', $content ) );
+
+ /*
+ * Technically, `has_block` should receive a "full" (normalized, parsed)
+ * block name. But this test conforms to expected pre-5.3.1 behavior.
+ */
+ $this->assertTrue( has_block( 'serialized', $content ) );
+ $this->assertTrue( has_block( 'core/normalized', $content ) );
+ $this->assertTrue( has_block( 'normalized', $content ) );
+ $this->assertFalse( has_block( 'plugin/normalized', $content ) );
+ $this->assertFalse( has_block( 'plugin/serialized', $content ) );
+ $this->assertFalse( has_block( 'third-party', $content ) );
+ $this->assertFalse( has_block( 'core/third-party', $content ) );
+ }
+
</ins><span class="cx" style="display: block; padding: 0 10px"> /**
</span><span class="cx" style="display: block; padding: 0 10px"> * Renders a test block without content.
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span></span></pre></div>
<a id="branches52testsphpunittestsformattingWPTargetedLinkRelphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: branches/5.2/tests/phpunit/tests/formatting/WPTargetedLinkRel.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- branches/5.2/tests/phpunit/tests/formatting/WPTargetedLinkRel.php 2019-12-12 18:10:56 UTC (rev 46900)
+++ branches/5.2/tests/phpunit/tests/formatting/WPTargetedLinkRel.php 2019-12-12 18:17:35 UTC (rev 46901)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -38,7 +38,7 @@
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> public function test_rel_with_single_quote_delimiter() {
</span><span class="cx" style="display: block; padding: 0 10px"> $content = '<p>Links: <a href="/" rel=\'existing values\' target="_blank">Existing rel</a></p>';
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- $expected = '<p>Links: <a href="/" rel=\'existing values noopener noreferrer\' target="_blank">Existing rel</a></p>';
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ $expected = '<p>Links: <a href="/" rel="existing values noopener noreferrer" target="_blank">Existing rel</a></p>';
</ins><span class="cx" style="display: block; padding: 0 10px"> $this->assertEquals( $expected, wp_targeted_link_rel( $content ) );
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -54,12 +54,6 @@
</span><span class="cx" style="display: block; padding: 0 10px"> $this->assertEquals( $expected, wp_targeted_link_rel( $content ) );
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- public function test_rel_value_spaced_and_no_delimiter_and_values_to_escape() {
- $content = '<p>Links: <a href="/" rel = existing"value target="_blank">Existing rel</a></p>';
- $expected = '<p>Links: <a href="/" rel="existing"value noopener noreferrer" target="_blank">Existing rel</a></p>';
- $this->assertEquals( $expected, wp_targeted_link_rel( $content ) );
- }
-
</del><span class="cx" style="display: block; padding: 0 10px"> public function test_escaped_quotes() {
</span><span class="cx" style="display: block; padding: 0 10px"> $content = '<p>Links: <a href=\"/\" rel=\"existing values\" target=\"_blank\">Existing rel</a></p>';
</span><span class="cx" style="display: block; padding: 0 10px"> $expected = '<p>Links: <a href=\"/\" rel=\"existing values noopener noreferrer\" target=\"_blank\">Existing rel</a></p>';
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -114,17 +108,31 @@
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> /**
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- * Ensure correct quotes are used when relation attribute (rel) is missing.
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ * Ensure the content of style and script tags are not processed
</ins><span class="cx" style="display: block; padding: 0 10px"> *
</span><span class="cx" style="display: block; padding: 0 10px"> * @ticket 47244
</span><span class="cx" style="display: block; padding: 0 10px"> */
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- public function test_wp_targeted_link_rel_should_use_correct_quotes() {
- $content = '<p>Links: <a href=\'\/\' target=\'_blank\'>No rel<\/a><\/p>';
- $expected = '<p>Links: <a href=\'\/\' target=\'_blank\' rel=\'noopener noreferrer\'>No rel<\/a><\/p>';
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ public function test_wp_targeted_link_rel_skips_style_and_scripts() {
+ $content = '<style><a href="/" target=a></style><p>Links: <script>console.log("<a href=\'/\' target=a>hi</a>");</script><script>alert(1);</script>here <a href="/" target=_blank>aq</a></p><script>console.log("<a href=\'last\' target=\'_blank\'")</script>';
+ $expected = '<style><a href="/" target=a></style><p>Links: <script>console.log("<a href=\'/\' target=a>hi</a>");</script><script>alert(1);</script>here <a href="/" target="_blank" rel="noopener noreferrer">aq</a></p><script>console.log("<a href=\'last\' target=\'_blank\'")</script>';
</ins><span class="cx" style="display: block; padding: 0 10px"> $this->assertEquals( $expected, wp_targeted_link_rel( $content ) );
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ }
</ins><span class="cx" style="display: block; padding: 0 10px">
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- $content = '<p>Links: <a href=\'\/\' target=_blank>No rel<\/a><\/p>';
- $expected = '<p>Links: <a href=\'\/\' target=_blank rel=\'noopener noreferrer\'>No rel<\/a><\/p>';
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ /**
+ * Ensure entirely serialized content is ignored.
+ *
+ * @ticket 46402
+ */
+ public function test_ignore_entirely_serialized_content() {
+ $content = 'a:1:{s:4:"html";s:52:"<p>Links: <a href="/" target="_blank">No Rel</a></p>";}';
+ $expected = 'a:1:{s:4:"html";s:52:"<p>Links: <a href="/" target="_blank">No Rel</a></p>";}';
</ins><span class="cx" style="display: block; padding: 0 10px"> $this->assertEquals( $expected, wp_targeted_link_rel( $content ) );
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+
+ public function test_wp_targeted_link_rel_tab_separated_values_are_split() {
+ $content = "<p>Links: <a href=\"/\" target=\"_blank\" rel=\"ugc\t\tnoopener\t\">No rel</a></p>";
+ $expected = '<p>Links: <a href="/" target="_blank" rel="ugc noopener noreferrer">No rel</a></p>';
+ $this->assertEquals( $expected, wp_targeted_link_rel( $content ) );
+ }
+
</ins><span class="cx" style="display: block; padding: 0 10px"> }
</span></span></pre></div>
<a id="branches52testsphpunittestsksesphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: branches/5.2/tests/phpunit/tests/kses.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- branches/5.2/tests/phpunit/tests/kses.php 2019-12-12 18:10:56 UTC (rev 46900)
+++ branches/5.2/tests/phpunit/tests/kses.php 2019-12-12 18:17:35 UTC (rev 46901)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -178,6 +178,28 @@
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ $bad_not_normalized = array(
+ 'dummy:alert(1)',
+ 'javascript:alert(1)',
+ 'javascript&CoLon;alert(1)',
+ 'javascript&COLON;alert(1);',
+ 'javascript:alert(1);',
+ 'javascript:alert(1);',
+ 'javascript:alert(1);',
+ 'jav ascript&COLON;alert(1);',
+ 'javascript:javascript:alert(1);',
+ 'javascript:javascript:alert(1);',
+ 'javascript:javascript:alert(1);',
+ 'javascript:javascript:alert(1);',
+ 'javascript:alert(1)',
+ );
+ foreach ( $bad_not_normalized as $k => $x ) {
+ $result = wp_kses_bad_protocol( $x, wp_allowed_protocols() );
+ if ( ! empty( $result ) && 'alert(1);' !== $result && 'alert(1)' !== $result ) {
+ $this->fail( "wp_kses_bad_protocol failed on $k, $x. Result: $result" );
+ }
+ }
+
</ins><span class="cx" style="display: block; padding: 0 10px"> $safe = array(
</span><span class="cx" style="display: block; padding: 0 10px"> 'dummy:alert(1)',
</span><span class="cx" style="display: block; padding: 0 10px"> 'HTTP://example.org/',
</span></span></pre>
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