wp_ajax_parse_embed

函数
wp_ajax_parse_embed ( No parameters )

wp_ajax_parse_embed: 这个函数用来解析和显示一个嵌入式媒体文件,如YouTube视频或Twitter文章: 当在内容中检测到嵌入式媒体文件时,它会被触发,检索oEmbed数据并将其嵌入到页面中。

对一个字符串应用[嵌入]Ajax处理程序。

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function wp_ajax_parse_embed() {
global $post, $wp_embed, $content_width;
if ( empty( $_POST['shortcode'] ) ) {
wp_send_json_error();
}
$post_id = isset( $_POST['post_ID'] ) ? (int) $_POST['post_ID'] : 0;
if ( $post_id > 0 ) {
$post = get_post( $post_id );
if ( ! $post || ! current_user_can( 'edit_post', $post->ID ) ) {
wp_send_json_error();
}
setup_postdata( $post );
} elseif ( ! current_user_can( 'edit_posts' ) ) { // See WP_oEmbed_Controller::get_proxy_item_permissions_check().
wp_send_json_error();
}
$shortcode = wp_unslash( $_POST['shortcode'] );
preg_match( '/' . get_shortcode_regex() . '/s', $shortcode, $matches );
$atts = shortcode_parse_atts( $matches[3] );
if ( ! empty( $matches[5] ) ) {
$url = $matches[5];
} elseif ( ! empty( $atts['src'] ) ) {
$url = $atts['src'];
} else {
$url = '';
}
$parsed = false;
$wp_embed->return_false_on_fail = true;
if ( 0 === $post_id ) {
/*
* Refresh oEmbeds cached outside of posts that are past their TTL.
* Posts are excluded because they have separate logic for refreshing
* their post meta caches. See WP_Embed::cache_oembed().
*/
$wp_embed->usecache = false;
}
if ( is_ssl() && 0 === strpos( $url, 'http://' ) ) {
// Admin is ssl and the user pasted non-ssl URL.
// Check if the provider supports ssl embeds and use that for the preview.
$ssl_shortcode = preg_replace( '%^(\]*\])http://%i', '$1https://', $shortcode );
$parsed = $wp_embed->run_shortcode( $ssl_shortcode );
if ( ! $parsed ) {
$no_ssl_support = true;
}
}
// Set $content_width so any embeds fit in the destination iframe.
if ( isset( $_POST['maxwidth'] ) && is_numeric( $_POST['maxwidth'] ) && $_POST['maxwidth'] > 0 ) {
if ( ! isset( $content_width ) ) {
$content_width = (int) $_POST['maxwidth'];
} else {
$content_width = min( $content_width, (int) $_POST['maxwidth'] );
}
}
if ( $url && ! $parsed ) {
$parsed = $wp_embed->run_shortcode( $shortcode );
}
if ( ! $parsed ) {
wp_send_json_error(
array(
'type' => 'not-embeddable',
/* translators: %s: URL that could not be embedded. */
'message' => sprintf( __( '%s failed to embed.' ), '<code>' . esc_html( $url ) . '</code>' ),
)
);
}
if ( has_shortcode( $parsed, 'audio' ) || has_shortcode( $parsed, 'video' ) ) {
$styles = '';
$mce_styles = wpview_media_sandbox_styles();
foreach ( $mce_styles as $style ) {
$styles .= sprintf( '<link rel="stylesheet" href="%s" />', $style );
}
$html = do_shortcode( $parsed );
global $wp_scripts;
if ( ! empty( $wp_scripts ) ) {
$wp_scripts->done = array();
}
ob_start();
wp_print_scripts( array( 'mediaelement-vimeo', 'wp-mediaelement' ) );
$scripts = ob_get_clean();
$parsed = $styles . $html . $scripts;
}
if ( ! empty( $no_ssl_support ) || ( is_ssl() && ( preg_match( '%<(iframe|script|embed) [^>]*src="http://%', $parsed ) ||
preg_match( '%<link [^>]*href="http://%', $parsed ) ) ) ) {
// Admin is ssl and the embed is not. Iframes, scripts, and other "active content" will be blocked.
wp_send_json_error(
array(
'type' => 'not-ssl',
'message' => __( 'This preview is unavailable in the editor.' ),
)
);
}
$return = array(
'body' => $parsed,
'attr' => $wp_embed->last_attr,
);
if ( strpos( $parsed, 'class="wp-embedded-content' ) ) {
if ( defined( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG ) {
$script_src = includes_url( 'js/wp-embed.js' );
} else {
$script_src = includes_url( 'js/wp-embed.min.js' );
}
$return['head'] = '<script src="' . $script_src . '"></script>';
$return['sandbox'] = true;
}
wp_send_json_success( $return );
}
function wp_ajax_parse_embed() { global $post, $wp_embed, $content_width; if ( empty( $_POST['shortcode'] ) ) { wp_send_json_error(); } $post_id = isset( $_POST['post_ID'] ) ? (int) $_POST['post_ID'] : 0; if ( $post_id > 0 ) { $post = get_post( $post_id ); if ( ! $post || ! current_user_can( 'edit_post', $post->ID ) ) { wp_send_json_error(); } setup_postdata( $post ); } elseif ( ! current_user_can( 'edit_posts' ) ) { // See WP_oEmbed_Controller::get_proxy_item_permissions_check(). wp_send_json_error(); } $shortcode = wp_unslash( $_POST['shortcode'] ); preg_match( '/' . get_shortcode_regex() . '/s', $shortcode, $matches ); $atts = shortcode_parse_atts( $matches[3] ); if ( ! empty( $matches[5] ) ) { $url = $matches[5]; } elseif ( ! empty( $atts['src'] ) ) { $url = $atts['src']; } else { $url = ''; } $parsed = false; $wp_embed->return_false_on_fail = true; if ( 0 === $post_id ) { /* * Refresh oEmbeds cached outside of posts that are past their TTL. * Posts are excluded because they have separate logic for refreshing * their post meta caches. See WP_Embed::cache_oembed(). */ $wp_embed->usecache = false; } if ( is_ssl() && 0 === strpos( $url, 'http://' ) ) { // Admin is ssl and the user pasted non-ssl URL. // Check if the provider supports ssl embeds and use that for the preview. $ssl_shortcode = preg_replace( '%^(\]*\])http://%i', '$1https://', $shortcode ); $parsed = $wp_embed->run_shortcode( $ssl_shortcode ); if ( ! $parsed ) { $no_ssl_support = true; } } // Set $content_width so any embeds fit in the destination iframe. if ( isset( $_POST['maxwidth'] ) && is_numeric( $_POST['maxwidth'] ) && $_POST['maxwidth'] > 0 ) { if ( ! isset( $content_width ) ) { $content_width = (int) $_POST['maxwidth']; } else { $content_width = min( $content_width, (int) $_POST['maxwidth'] ); } } if ( $url && ! $parsed ) { $parsed = $wp_embed->run_shortcode( $shortcode ); } if ( ! $parsed ) { wp_send_json_error( array( 'type' => 'not-embeddable', /* translators: %s: URL that could not be embedded. */ 'message' => sprintf( __( '%s failed to embed.' ), '<code>' . esc_html( $url ) . '</code>' ), ) ); } if ( has_shortcode( $parsed, 'audio' ) || has_shortcode( $parsed, 'video' ) ) { $styles = ''; $mce_styles = wpview_media_sandbox_styles(); foreach ( $mce_styles as $style ) { $styles .= sprintf( '<link rel="stylesheet" href="%s" />', $style ); } $html = do_shortcode( $parsed ); global $wp_scripts; if ( ! empty( $wp_scripts ) ) { $wp_scripts->done = array(); } ob_start(); wp_print_scripts( array( 'mediaelement-vimeo', 'wp-mediaelement' ) ); $scripts = ob_get_clean(); $parsed = $styles . $html . $scripts; } if ( ! empty( $no_ssl_support ) || ( is_ssl() && ( preg_match( '%<(iframe|script|embed) [^>]*src="http://%', $parsed ) || preg_match( '%<link [^>]*href="http://%', $parsed ) ) ) ) { // Admin is ssl and the embed is not. Iframes, scripts, and other "active content" will be blocked. wp_send_json_error( array( 'type' => 'not-ssl', 'message' => __( 'This preview is unavailable in the editor.' ), ) ); } $return = array( 'body' => $parsed, 'attr' => $wp_embed->last_attr, ); if ( strpos( $parsed, 'class="wp-embedded-content' ) ) { if ( defined( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG ) { $script_src = includes_url( 'js/wp-embed.js' ); } else { $script_src = includes_url( 'js/wp-embed.min.js' ); } $return['head'] = '<script src="' . $script_src . '"></script>'; $return['sandbox'] = true; } wp_send_json_success( $return ); }
function wp_ajax_parse_embed() {
	global $post, $wp_embed, $content_width;

	if ( empty( $_POST['shortcode'] ) ) {
		wp_send_json_error();
	}

	$post_id = isset( $_POST['post_ID'] ) ? (int) $_POST['post_ID'] : 0;

	if ( $post_id > 0 ) {
		$post = get_post( $post_id );

		if ( ! $post || ! current_user_can( 'edit_post', $post->ID ) ) {
			wp_send_json_error();
		}
		setup_postdata( $post );
	} elseif ( ! current_user_can( 'edit_posts' ) ) { // See WP_oEmbed_Controller::get_proxy_item_permissions_check().
		wp_send_json_error();
	}

	$shortcode = wp_unslash( $_POST['shortcode'] );

	preg_match( '/' . get_shortcode_regex() . '/s', $shortcode, $matches );
	$atts = shortcode_parse_atts( $matches[3] );

	if ( ! empty( $matches[5] ) ) {
		$url = $matches[5];
	} elseif ( ! empty( $atts['src'] ) ) {
		$url = $atts['src'];
	} else {
		$url = '';
	}

	$parsed                         = false;
	$wp_embed->return_false_on_fail = true;

	if ( 0 === $post_id ) {
		/*
		 * Refresh oEmbeds cached outside of posts that are past their TTL.
		 * Posts are excluded because they have separate logic for refreshing
		 * their post meta caches. See WP_Embed::cache_oembed().
		 */
		$wp_embed->usecache = false;
	}

	if ( is_ssl() && 0 === strpos( $url, 'http://' ) ) {
		// Admin is ssl and the user pasted non-ssl URL.
		// Check if the provider supports ssl embeds and use that for the preview.
		$ssl_shortcode = preg_replace( '%^(\]*\])http://%i', '$1https://', $shortcode );
		$parsed        = $wp_embed->run_shortcode( $ssl_shortcode );

		if ( ! $parsed ) {
			$no_ssl_support = true;
		}
	}

	// Set $content_width so any embeds fit in the destination iframe.
	if ( isset( $_POST['maxwidth'] ) && is_numeric( $_POST['maxwidth'] ) && $_POST['maxwidth'] > 0 ) {
		if ( ! isset( $content_width ) ) {
			$content_width = (int) $_POST['maxwidth'];
		} else {
			$content_width = min( $content_width, (int) $_POST['maxwidth'] );
		}
	}

	if ( $url && ! $parsed ) {
		$parsed = $wp_embed->run_shortcode( $shortcode );
	}

	if ( ! $parsed ) {
		wp_send_json_error(
			array(
				'type'    => 'not-embeddable',
				/* translators: %s: URL that could not be embedded. */
				'message' => sprintf( __( '%s failed to embed.' ), '<code>' . esc_html( $url ) . '</code>' ),
			)
		);
	}

	if ( has_shortcode( $parsed, 'audio' ) || has_shortcode( $parsed, 'video' ) ) {
		$styles     = '';
		$mce_styles = wpview_media_sandbox_styles();

		foreach ( $mce_styles as $style ) {
			$styles .= sprintf( '<link rel="stylesheet" href="%s" />', $style );
		}

		$html = do_shortcode( $parsed );

		global $wp_scripts;

		if ( ! empty( $wp_scripts ) ) {
			$wp_scripts->done = array();
		}

		ob_start();
		wp_print_scripts( array( 'mediaelement-vimeo', 'wp-mediaelement' ) );
		$scripts = ob_get_clean();

		$parsed = $styles . $html . $scripts;
	}

	if ( ! empty( $no_ssl_support ) || ( is_ssl() && ( preg_match( '%<(iframe|script|embed) [^>]*src="http://%', $parsed ) ||
		preg_match( '%<link [^>]*href="http://%', $parsed ) ) ) ) {
		// Admin is ssl and the embed is not. Iframes, scripts, and other "active content" will be blocked.
		wp_send_json_error(
			array(
				'type'    => 'not-ssl',
				'message' => __( 'This preview is unavailable in the editor.' ),
			)
		);
	}

	$return = array(
		'body' => $parsed,
		'attr' => $wp_embed->last_attr,
	);

	if ( strpos( $parsed, 'class="wp-embedded-content' ) ) {
		if ( defined( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG ) {
			$script_src = includes_url( 'js/wp-embed.js' );
		} else {
			$script_src = includes_url( 'js/wp-embed.min.js' );
		}

		$return['head']    = '<script src="' . $script_src . '"></script>';
		$return['sandbox'] = true;
	}

	wp_send_json_success( $return );
}

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