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Diffstat (limited to 'plugins/jetpack/modules/sharedaddy/sharedaddy.php')
-rw-r--r--plugins/jetpack/modules/sharedaddy/sharedaddy.php289
1 files changed, 289 insertions, 0 deletions
diff --git a/plugins/jetpack/modules/sharedaddy/sharedaddy.php b/plugins/jetpack/modules/sharedaddy/sharedaddy.php
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+++ b/plugins/jetpack/modules/sharedaddy/sharedaddy.php
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+<?php
+/*
+Plugin Name: Sharedaddy
+Description: The most super duper sharing tool on the interwebs.
+Version: 0.3.1
+Author: Automattic, Inc.
+Author URI: http://automattic.com/
+Plugin URI: http://en.blog.wordpress.com/2010/08/24/more-ways-to-share/
+*/
+
+require_once plugin_dir_path( __FILE__ ).'sharing.php';
+
+function sharing_email_send_post( $data ) {
+
+ $content = sharing_email_send_post_content( $data );
+ // Borrowed from wp_mail();
+ $sitename = strtolower( $_SERVER['SERVER_NAME'] );
+ if ( substr( $sitename, 0, 4 ) == 'www.' ) {
+ $sitename = substr( $sitename, 4 );
+ }
+
+ /** This filter is documented in core/src/wp-includes/pluggable.php */
+ $from_email = apply_filters( 'wp_mail_from', 'wordpress@' . $sitename );
+
+ if ( ! empty( $data['name'] ) ) {
+ $s_name = (string) $data['name'];
+ $name_needs_encoding_regex =
+ '/[' .
+ // SpamAssasin's list of characters which "need MIME" encoding
+ '\x00-\x08\x0b\x0c\x0e-\x1f\x7f-\xff' .
+ // Our list of "unsafe" characters
+ '<\r\n' .
+ ']/';
+
+ $needs_encoding =
+ // If it contains any blacklisted chars,
+ preg_match( $name_needs_encoding_regex, $s_name ) ||
+ // Or if we can't use `mb_convert_encoding`
+ ! function_exists( 'mb_convert_encoding' ) ||
+ // Or if it's not already ASCII
+ mb_convert_encoding( $data['name'], 'ASCII' ) !== $s_name;
+
+ if ( $needs_encoding ) {
+ $data['name'] = sprintf( '=?UTF-8?B?%s?=', base64_encode( $data['name'] ) );
+ }
+ }
+
+ $headers[] = sprintf( 'From: %1$s <%2$s>', $data['name'], $from_email );
+ $headers[] = sprintf( 'Reply-To: %1$s <%2$s>', $data['name'], $data['source'] );
+
+ // Make sure to pass the title through the normal sharing filters.
+ $title = $data['sharing_source']->get_share_title( $data['post']->ID );
+
+ /**
+ * Filter the Sharing Email Send Post Subject.
+ *
+ * @module sharedaddy
+ *
+ * @since 5.8.0
+ *
+ * @param string $var Sharing Email Send Post Subject. Default is "Shared Post".
+ */
+ $subject = apply_filters( 'wp_sharing_email_send_post_subject', '[' . __( 'Shared Post', 'jetpack' ) . '] ' . $title );
+
+ wp_mail( $data['target'], $subject, $content, $headers );
+}
+
+
+/* Checks for spam using akismet if available. */
+/* Return $data as it if email about to be send out is not spam. */
+function sharing_email_check_for_spam_via_akismet( $data ) {
+
+ if ( ! Jetpack::is_akismet_active() )
+ return $data;
+
+ // Prepare the body_request for akismet
+ $body_request = array(
+ 'blog' => get_option( 'home' ),
+ 'permalink' => $data['sharing_source']->get_share_url( $data['post']->ID ),
+ 'comment_type' => 'share',
+ 'comment_author' => $data['name'],
+ 'comment_author_email' => $data['source'],
+ 'comment_content' => sharing_email_send_post_content( $data ),
+ 'user_agent' => ( isset( $_SERVER['HTTP_USER_AGENT'] ) ? $_SERVER['HTTP_USER_AGENT'] : null ),
+ );
+
+ if ( method_exists( 'Akismet', 'http_post' ) ) {
+ $body_request['user_ip'] = Akismet::get_ip_address();
+ $response = Akismet::http_post( build_query( $body_request ), 'comment-check' );
+ } else {
+ global $akismet_api_host, $akismet_api_port;
+ $body_request['user_ip'] = ( isset( $_SERVER['REMOTE_ADDR'] ) ? $_SERVER['REMOTE_ADDR'] : null );
+ $response = akismet_http_post( build_query( $body_request ), $akismet_api_host, '/1.1/comment-check', $akismet_api_port );
+ }
+
+ // The Response is spam lets not send the email.
+ if ( ! empty( $response ) && isset( $response[1] ) && 'true' == trim( $response[1] ) ) { // 'true' is spam
+ return false; // don't send the email
+ }
+ return $data;
+}
+
+function sharing_email_send_post_content( $data ) {
+ /* translators: included in email when post is shared via email. First item is sender's name. Second is sender's email address. */
+ $content = sprintf( __( '%1$s (%2$s) thinks you may be interested in the following post:', 'jetpack' ), $data['name'], $data['source'] );
+ $content .= "\n\n";
+ // Make sure to pass the title and URL through the normal sharing filters.
+ $content .= $data['sharing_source']->get_share_title( $data['post']->ID ) . "\n";
+ $content .= $data['sharing_source']->get_share_url( $data['post']->ID ) . "\n";
+ return $content;
+}
+
+function sharing_add_meta_box() {
+ global $post;
+ if ( empty( $post ) ) { // If a current post is not defined, such as when editing a comment.
+ return;
+ }
+
+ /**
+ * Filter whether to display the Sharing Meta Box or not.
+ *
+ * @module sharedaddy
+ *
+ * @since 3.8.0
+ *
+ * @param bool true Display Sharing Meta Box.
+ * @param $post Post.
+ */
+ if ( ! apply_filters( 'sharing_meta_box_show', true, $post ) ) {
+ return;
+ }
+
+ $post_types = get_post_types( array( 'public' => true ) );
+ /**
+ * Filter the Sharing Meta Box title.
+ *
+ * @module sharedaddy
+ *
+ * @since 2.2.0
+ *
+ * @param string $var Sharing Meta Box title. Default is "Sharing".
+ */
+ $title = apply_filters( 'sharing_meta_box_title', __( 'Sharing', 'jetpack' ) );
+ if ( $post->ID !== get_option( 'page_for_posts' ) ) {
+ foreach( $post_types as $post_type ) {
+ add_meta_box( 'sharing_meta', $title, 'sharing_meta_box_content', $post_type, 'side', 'default', array( '__back_compat_meta_box' => true ) );
+ }
+ }
+}
+
+
+function sharing_meta_box_content( $post ) {
+ /**
+ * Fires before the sharing meta box content.
+ *
+ * @module sharedaddy
+ *
+ * @since 2.2.0
+ *
+ * @param WP_Post $post The post to share.
+ */
+ do_action( 'start_sharing_meta_box_content', $post );
+
+ $disabled = get_post_meta( $post->ID, 'sharing_disabled', true ); ?>
+
+ <p>
+ <label for="enable_post_sharing">
+ <input type="checkbox" name="enable_post_sharing" id="enable_post_sharing" value="1" <?php checked( !$disabled ); ?>>
+ <?php _e( 'Show sharing buttons.' , 'jetpack'); ?>
+ </label>
+ <input type="hidden" name="sharing_status_hidden" value="1" />
+ </p>
+
+ <?php
+ /**
+ * Fires after the sharing meta box content.
+ *
+ * @module sharedaddy
+ *
+ * @since 2.2.0
+ *
+ * @param WP_Post $post The post to share.
+ */
+ do_action( 'end_sharing_meta_box_content', $post );
+}
+
+function sharing_meta_box_save( $post_id ) {
+ if ( defined('DOING_AUTOSAVE') && DOING_AUTOSAVE )
+ return $post_id;
+
+ // Record sharing disable
+ if ( isset( $_POST['post_type'] ) && ( $post_type_object = get_post_type_object( $_POST['post_type'] ) ) && $post_type_object->public ) {
+ if ( current_user_can( 'edit_post', $post_id ) ) {
+ if ( isset( $_POST['sharing_status_hidden'] ) ) {
+ if ( !isset( $_POST['enable_post_sharing'] ) ) {
+ update_post_meta( $post_id, 'sharing_disabled', 1 );
+ } else {
+ delete_post_meta( $post_id, 'sharing_disabled' );
+ }
+ }
+ }
+ }
+
+ return $post_id;
+}
+
+function sharing_meta_box_protected( $protected, $meta_key, $meta_type ) {
+ if ( 'sharing_disabled' == $meta_key )
+ $protected = true;
+
+ return $protected;
+}
+
+add_filter( 'is_protected_meta', 'sharing_meta_box_protected', 10, 3 );
+
+function sharing_plugin_settings( $links ) {
+ $settings_link = '<a href="options-general.php?page=sharing.php">'.__( 'Settings', 'jetpack' ).'</a>';
+ array_unshift( $links, $settings_link );
+ return $links;
+}
+
+function sharing_add_plugin_settings($links, $file) {
+ if ( $file == basename( dirname( __FILE__ ) ).'/'.basename( __FILE__ ) ) {
+ $links[] = '<a href="options-general.php?page=sharing.php">' . __( 'Settings', 'jetpack' ) . '</a>';
+ $links[] = '<a href="http://support.wordpress.com/sharing/" rel="noopener noreferrer" target="_blank">' . __( 'Support', 'jetpack' ) . '</a>';
+ }
+
+ return $links;
+}
+
+function sharing_init() {
+ if ( Jetpack_Options::get_option_and_ensure_autoload( 'sharedaddy_disable_resources', '0' ) ) {
+ add_filter( 'sharing_js', 'sharing_disable_js' );
+ remove_action( 'wp_head', 'sharing_add_header', 1 );
+ }
+}
+
+function sharing_disable_js() {
+ return false;
+}
+
+function sharing_global_resources() {
+ $disable = get_option( 'sharedaddy_disable_resources' );
+?>
+<tr valign="top">
+ <th scope="row"><label for="disable_css"><?php _e( 'Disable CSS and JS', 'jetpack' ); ?></label></th>
+ <td>
+ <input id="disable_css" type="checkbox" name="disable_resources" <?php if ( $disable == 1 ) echo ' checked="checked"'; ?>/> <small><em><?php _e( 'Advanced. If this option is checked, you must include these files in your theme manually for the sharing links to work.', 'jetpack' ); ?></em></small>
+ </td>
+</tr>
+<?php
+}
+
+function sharing_global_resources_save() {
+ update_option( 'sharedaddy_disable_resources', isset( $_POST['disable_resources'] ) ? 1 : 0 );
+}
+
+function sharing_email_dialog() {
+ require_once plugin_dir_path( __FILE__ ) . 'recaptcha.php';
+
+ $recaptcha = new Jetpack_ReCaptcha( RECAPTCHA_PUBLIC_KEY, RECAPTCHA_PRIVATE_KEY );
+ echo $recaptcha->get_recaptcha_html(); // xss ok
+}
+
+function sharing_email_check( $true, $post, $data ) {
+ require_once plugin_dir_path( __FILE__ ) . 'recaptcha.php';
+
+ $recaptcha = new Jetpack_ReCaptcha( RECAPTCHA_PUBLIC_KEY, RECAPTCHA_PRIVATE_KEY );
+ $response = ! empty( $_POST['g-recaptcha-response'] ) ? $_POST['g-recaptcha-response'] : '';
+ $result = $recaptcha->verify( $response, $_SERVER['REMOTE_ADDR'] );
+
+ return ( true === $result );
+}
+
+add_action( 'init', 'sharing_init' );
+add_action( 'add_meta_boxes', 'sharing_add_meta_box' );
+add_action( 'save_post', 'sharing_meta_box_save' );
+add_action( 'edit_attachment', 'sharing_meta_box_save' );
+add_action( 'sharing_email_send_post', 'sharing_email_send_post' );
+add_filter( 'sharing_email_can_send', 'sharing_email_check_for_spam_via_akismet' );
+add_action( 'sharing_global_options', 'sharing_global_resources', 30 );
+add_action( 'sharing_admin_update', 'sharing_global_resources_save' );
+add_action( 'plugin_action_links_'.basename( dirname( __FILE__ ) ).'/'.basename( __FILE__ ), 'sharing_plugin_settings', 10, 4 );
+add_filter( 'plugin_row_meta', 'sharing_add_plugin_settings', 10, 2 );
+
+if ( defined( 'RECAPTCHA_PUBLIC_KEY' ) && defined( 'RECAPTCHA_PRIVATE_KEY' ) ) {
+ add_action( 'sharing_email_dialog', 'sharing_email_dialog' );
+ add_filter( 'sharing_email_check', 'sharing_email_check', 10, 3 );
+}