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<title>[43074] branches/4.9/src/wp-admin/includes/ajax-actions.php: Privacy: add support for exporting multiple pages of personal data.</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/43074">43074</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/43074","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>SergeyBiryukov</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2018-05-01 23:57:42 +0000 (Tue, 01 May 2018)</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'>Privacy: add support for exporting multiple pages of personal data.

Props allendav.
Merges <a href="https://core.trac.wordpress.org/changeset/42889">[42889]</a> to the 4.9 branch.
See <a href="https://core.trac.wordpress.org/ticket/43438">#43438</a>.</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#branches49srcwpadminadminajaxphp">branches/4.9/src/wp-admin/admin-ajax.php</a></li>
<li><a href="#branches49srcwpadminincludesajaxactionsphp">branches/4.9/src/wp-admin/includes/ajax-actions.php</a></li>
</ul>

<h3>Property Changed</h3>
<ul>
<li><a href="#branches49">branches/4.9/</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<span class="cx" style="display: block; padding: 0 10px">Index: branches/4.9
</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/4.9 2018-05-01 23:48:21 UTC (rev 43073)
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+++ branches/4.9  2018-05-01 23:57:42 UTC (rev 43074)
</ins><a id="branches49"></a>
<div class="propset"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Property changes: branches/4.9</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/3.1:18031
</span><span class="cx" style="display: block; padding: 0 10px"> /branches/3.3:20543
</span><span class="cx" style="display: block; padding: 0 10px"> /branches/3.4:21757
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-/trunk:18512,42132,42134,42136,42138,42140,42144,42146,42148,42150,42152-42153,42155,42157,42159,42161,42163,42169,42171,42173,42175,42177,42181,42183,42185,42187,42189,42191,42193,42199,42203,42210,42214,42220,42222,42226,42242,42244,42247,42251,42256-42261,42350,42358,42362,42364-42368,42374,42388,42390,42401,42417,42421,42423-42425,42430,42433,42437,42441,42443,42446-42447,42449,42451,42453,42457,42459,42462,42491,42521,42529,42531,42533,42536,42538,42541,42543,42545,42549,42566,42568,42570,42572,42574,42576,42579,42581-42582,42584-42585,42587-42588,42590,42592,42594-42595,42598-42599,42602,42604,42606,42611-42613,42615,42617,42624-42625,42639,42648,42652-42653,42665,42687,42711,42713,42719,42722,42739-42740,42744,42758,42791-42792,42801,42817-42818,42830,42837,42839,42841,42844,42851-42852,42860,42864,42881,42892-42894,42930,42964,42967,42972,42977,42998,43001,43004,43007,43025,43027
 ,43030,43032,43034,43036,43039,43056,43062-43063,43065
</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:18512,42132,42134,42136,42138,42140,42144,42146,42148,42150,42152-42153,42155,42157,42159,42161,42163,42169,42171,42173,42175,42177,42181,42183,42185,42187,42189,42191,42193,42199,42203,42210,42214,42220,42222,42226,42242,42244,42247,42251,42256-42261,42350,42358,42362,42364-42368,42374,42388,42390,42401,42417,42421,42423-42425,42430,42433,42437,42441,42443,42446-42447,42449,42451,42453,42457,42459,42462,42491,42521,42529,42531,42533,42536,42538,42541,42543,42545,42549,42566,42568,42570,42572,42574,42576,42579,42581-42582,42584-42585,42587-42588,42590,42592,42594-42595,42598-42599,42602,42604,42606,42611-42613,42615,42617,42624-42625,42639,42648,42652-42653,42665,42687,42711,42713,42719,42722,42739-42740,42744,42758,42791-42792,42801,42817-42818,42830,42837,42839,42841,42844,42851-42852,42860,42864,42881,42889,42892-42894,42930,42964,42967,42972,42977,42998,43001,43004,43007,43025
 ,43027,43030,43032,43034,43036,43039,43056,43062-43063,43065
</ins><span class="cx" style="display: block; padding: 0 10px">\ No newline at end of property
</span><a id="branches49srcwpadminadminajaxphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: branches/4.9/src/wp-admin/admin-ajax.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- branches/4.9/src/wp-admin/admin-ajax.php  2018-05-01 23:48:21 UTC (rev 43073)
+++ branches/4.9/src/wp-admin/admin-ajax.php    2018-05-01 23:57:42 UTC (rev 43074)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -65,6 +65,7 @@
</span><span class="cx" style="display: block; padding: 0 10px">        'generate-password', 'save-wporg-username', 'delete-plugin', 'search-plugins',
</span><span class="cx" style="display: block; padding: 0 10px">        'search-install-plugins', 'activate-plugin', 'update-theme', 'delete-theme', 'install-theme',
</span><span class="cx" style="display: block; padding: 0 10px">        'get-post-thumbnail-html', 'get-community-events', 'edit-theme-plugin-file',
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+        'wp-privacy-export-personal-data',
</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"> // Deprecated
</span></span></pre></div>
<a id="branches49srcwpadminincludesajaxactionsphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: branches/4.9/src/wp-admin/includes/ajax-actions.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- branches/4.9/src/wp-admin/includes/ajax-actions.php       2018-05-01 23:48:21 UTC (rev 43073)
+++ branches/4.9/src/wp-admin/includes/ajax-actions.php 2018-05-01 23:57:42 UTC (rev 43074)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -4017,3 +4017,120 @@
</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">+
+function wp_ajax_wp_privacy_export_personal_data() {
+//     check_ajax_referer( 'wp-privacy-export-personal-data', 'security' );
+
+       if ( ! current_user_can( 'manage_options' ) ) {
+               wp_send_json_error( 'access denied' );
+       }
+
+       $email_address  = sanitize_text_field( $_POST['email'] );
+       $exporter_index = (int) $_POST['exporter'];
+       $page           = (int) $_POST['page'];
+
+       /**
+        * Filters the array of exporter callbacks.
+        *
+        * @since 4.9.5.
+        *
+        * @param array $args {
+        *     An array of callable exporters of personal data. Default empty array.
+        *     [
+        *         callback               string  Callable exporter that accepts an email address and
+        *                                        a page and returns an array of name => value
+        *                                        pairs of personal data
+        *         exporter_friendly_name string  Translated user facing friendly name for the exporter
+        *     ]
+        * }
+        */
+       $exporters = apply_filters( 'wp_privacy_personal_data_exporters', array() );
+
+       if ( ! is_array( $exporters ) ) {
+               wp_send_json_error( 'An exporter has improperly used the registration filter.' );
+       }
+
+       // Do we have any registered exporters?
+       if ( 0 < count( $exporters ) ) {
+               if ( $exporter_index < 1 ) {
+                       wp_send_json_error( 'Exporter index cannot be negative.' );
+               }
+
+               if ( $exporter_index > count( $exporters ) ) {
+                       wp_send_json_error( 'Exporter index out of range.' );
+               }
+
+               $index = $exporter_index - 1;
+
+               if ( $page < 1 ) {
+                       wp_send_json_error( 'Page index cannot be less than one.' );
+               }
+
+               // Surprisingly, email addresses can contain mutli-byte characters now
+               $email_address = trim( mb_strtolower( $email_address ) );
+
+               if ( ! is_email( $email_address ) ) {
+                       wp_send_json_error( 'A valid email address must be given.' );
+               }
+
+               $exporter = $exporters[ $index ];
+               if ( ! is_array( $exporter ) ) {
+                       wp_send_json_error( "Expected an array describing the exporter at index {$exporter_index}." );
+               }
+               if ( ! array_key_exists( 'callback', $exporter ) ) {
+                       wp_send_json_error( "Exporter array at index {$exporter_index} does not include a callback." );
+               }
+               if ( ! is_callable( $exporter['callback'] ) ) {
+                       wp_send_json_error( "Exporter callback at index {$exporter_index} is not a valid callback." );
+               }
+               if ( ! array_key_exists( 'exporter_friendly_name', $exporter ) ) {
+                       wp_send_json_error( "Exporter array at index {$exporter_index} does not include a friendly name." );
+               }
+
+               $callback = $exporters[ $index ]['callback'];
+               $exporter_friendly_name = $exporters[ $index ]['exporter_friendly_name'];
+
+               $response = call_user_func( $callback, $email_address, $page );
+               if ( is_wp_error( $response ) ) {
+                       wp_send_json_error( $response );
+               }
+
+               if ( ! is_array( $response ) ) {
+                       wp_send_json_error( "Expected response as an array from exporter: {$exporter_friendly_name}." );
+               }
+               if ( ! array_key_exists( 'data', $response ) ) {
+                       wp_send_json_error( "Expected data in response array from exporter: {$exporter_friendly_name}." );
+               }
+               if ( ! is_array( $response['data'] ) ) {
+                       wp_send_json_error( "Expected data array in response array from exporter: {$exporter_friendly_name}." );
+               }
+               if ( ! array_key_exists( 'done', $response ) ) {
+                       wp_send_json_error( "Expected done (boolean) in response array from exporter: {$exporter_friendly_name}." );
+               }
+       } else {
+               // No exporters, so we're done
+               $response = array(
+                       'data' => array(),
+                       'done' => true,
+               );
+       }
+
+       /**
+        * Filters a page of personal data exporter data. Used to build the export report.
+        *
+        * Allows the export response to be consumed by destinations in addition to Ajax.
+        *
+        * @since 4.9.5
+        *
+        * @param array  $response        The personal data for the given exporter and page.
+        * @param int    $exporter_index  The index of the exporter that provided this data.
+        * @param string $email_address   The email address associated with this personal data.
+        * @param int    $page            The zero-based page for this response.
+        */
+       $response = apply_filters( 'wp_privacy_personal_data_export_page', $response, $exporter_index, $email_address, $page );
+       if ( is_wp_error( $response ) ) {
+               wp_send_json_error( $response );
+       }
+
+       wp_send_json_success( $response );
+}
</ins></span></pre>
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