WordPressを読む　96-3 /blog/wp-includes/pluggable.php 3

2014/12/04

/blog/wp-includes/pluggable.php 3

if ( !function_exists('check_admin_referer') ) :
/**
 * Makes sure that a user was referred from another admin page.
 *
 * To avoid security exploits.
 *
 * @since 1.2.0
 *
 * @param string $action Action nonce
 * @param string $query_arg where to look for nonce in $_REQUEST (since 2.5)
 */
function check_admin_referer($action = -1, $query_arg = '_wpnonce') {
	if ( -1 == $action )
		_doing_it_wrong( __FUNCTION__, __( 'You should specify a nonce action to be verified by using the first parameter.' ), '3.2' );

	$adminurl = strtolower(admin_url());
	$referer = strtolower(wp_get_referer());
	$result = isset($_REQUEST[$query_arg]) ? wp_verify_nonce($_REQUEST[$query_arg], $action) : false;
	if ( !$result && !(-1 == $action && strpos($referer, $adminurl) === 0) ) {
		wp_nonce_ays($action);
		die();
	}

	/**
	 * Fires once the admin request has been validated or not.
	 *
	 * @since 1.5.1
	 *
	 * @param string $action The nonce action.
	 * @param bool   $result Whether the admin request nonce was validated.
	 */
	do_action( 'check_admin_referer', $action, $result );
	return $result;
}
endif;

if ( !function_exists('check_ajax_referer') ) :
/**
 * Verifies the AJAX request to prevent processing requests external of the blog.
 *
 * @since 2.0.3
 *
 * @param string $action Action nonce
 * @param string $query_arg where to look for nonce in $_REQUEST (since 2.5)
 */
function check_ajax_referer( $action = -1, $query_arg = false, $die = true ) {
	$nonce = '';

	if ( $query_arg && isset( $_REQUEST[ $query_arg ] ) )
		$nonce = $_REQUEST[ $query_arg ];
	elseif ( isset( $_REQUEST['_ajax_nonce'] ) )
		$nonce = $_REQUEST['_ajax_nonce'];
	elseif ( isset( $_REQUEST['_wpnonce'] ) )
		$nonce = $_REQUEST['_wpnonce'];

	$result = wp_verify_nonce( $nonce, $action );

	if ( $die && false == $result ) {
		if ( defined( 'DOING_AJAX' ) && DOING_AJAX )
			wp_die( -1 );
		else
			die( '-1' );
	}

	/**
	 * Fires once the AJAX request has been validated or not.
	 *
	 * @since 2.1.0
	 *
	 * @param string $action The AJAX nonce action.
	 * @param bool   $result Whether the AJAX request nonce was validated.
	 */
	do_action( 'check_ajax_referer', $action, $result );

	return $result;
}
endif;

if ( !function_exists('wp_redirect') ) :
/**
 * Redirects to another page.
 *
 * @since 1.5.1
 *
 * @param string $location The path to redirect to.
 * @param int $status Status code to use.
 * @return bool False if $location is not provided, true otherwise.
 */
function wp_redirect($location, $status = 302) {
	global $is_IIS;

	/**
	 * Filter the redirect location.
	 *
	 * @since 2.1.0
	 *
	 * @param string $location The path to redirect to.
	 * @param int    $status   Status code to use.
	 */
	$location = apply_filters( 'wp_redirect', $location, $status );

	/**
	 * Filter the redirect status code.
	 *
	 * @since 2.3.0
	 *
	 * @param int    $status   Status code to use.
	 * @param string $location The path to redirect to.
	 */
	$status = apply_filters( 'wp_redirect_status', $status, $location );

	if ( ! $location )
		return false;

	$location = wp_sanitize_redirect($location);

	if ( !$is_IIS && php_sapi_name() != 'cgi-fcgi' )
		status_header($status); // This causes problems on IIS and some FastCGI setups

	header("Location: $location", true, $status);

	return true;
}
endif;

if ( !function_exists('wp_sanitize_redirect') ) :
/**
 * Sanitizes a URL for use in a redirect.
 *
 * @since 2.3.0
 *
 * @return string redirect-sanitized URL
 **/
function wp_sanitize_redirect($location) {
	$location = preg_replace('|[^a-z0-9-~+_.?#=&;,/:%!*]|i', '', $location);
	$location = wp_kses_no_null($location);

	// remove %0d and %0a from location
	$strip = array('%0d', '%0a', '%0D', '%0A');
	$location = _deep_replace($strip, $location);
	return $location;
}
endif;

if ( !function_exists('wp_safe_redirect') ) :
/**
 * Performs a safe (local) redirect, using wp_redirect().
 *
 * Checks whether the $location is using an allowed host, if it has an absolute
 * path. A plugin can therefore set or remove allowed host(s) to or from the
 * list.
 *
 * If the host is not allowed, then the redirect is to wp-admin on the siteurl
 * instead. This prevents malicious redirects which redirect to another host,
 * but only used in a few places.
 *
 * @since 2.3.0
 *
 * @uses wp_validate_redirect() To validate the redirect is to an allowed host.
 *
 * @return void Does not return anything
 **/
function wp_safe_redirect($location, $status = 302) {

	// Need to look at the URL the way it will end up in wp_redirect()
	$location = wp_sanitize_redirect($location);

	$location = wp_validate_redirect($location, admin_url());

	wp_redirect($location, $status);
}
endif;

if ( !function_exists('wp_validate_redirect') ) :
/**
 * Validates a URL for use in a redirect.
 *
 * Checks whether the $location is using an allowed host, if it has an absolute
 * path. A plugin can therefore set or remove allowed host(s) to or from the
 * list.
 *
 * If the host is not allowed, then the redirect is to $default supplied
 *
 * @since 2.8.1
 *
 * @param string $location The redirect to validate
 * @param string $default The value to return if $location is not allowed
 * @return string redirect-sanitized URL
 **/
function wp_validate_redirect($location, $default = '') {
	$location = trim( $location );
	// browsers will assume 'http' is your protocol, and will obey a redirect to a URL starting with '//'
	if ( substr($location, 0, 2) == '//' )
		$location = 'http:' . $location;

	// In php 5 parse_url may fail if the URL query part contains http://, bug #38143
	$test = ( $cut = strpos($location, '?') ) ? substr( $location, 0, $cut ) : $location;

	$lp  = parse_url($test);

	// Give up if malformed URL
	if ( false === $lp )
		return $default;

	// Allow only http and https schemes. No data:, etc.
	if ( isset($lp['scheme']) && !('http' == $lp['scheme'] || 'https' == $lp['scheme']) )
		return $default;

	// Reject if scheme is set but host is not. This catches urls like https:host.com for which parse_url does not set the host field.
	if ( isset($lp['scheme'])  && !isset($lp['host']) )
		return $default;

	$wpp = parse_url(home_url());

	/**
	 * Filter the whitelist of hosts to redirect to.
	 *
	 * @since 2.3.0
	 *
	 * @param array       $hosts An array of allowed hosts.
	 * @param bool|string $host  The parsed host; empty if not isset.
	 */
	$allowed_hosts = (array) apply_filters( 'allowed_redirect_hosts', array($wpp['host']), isset($lp['host']) ? $lp['host'] : '' );

	if ( isset($lp['host']) && ( !in_array($lp['host'], $allowed_hosts) && $lp['host'] != strtolower($wpp['host'])) )
		$location = $default;

	return $location;
}
endif;

if ( ! function_exists('wp_notify_postauthor') ) :
/**
 * Notify an author (and/or others) of a comment/trackback/pingback on a post.
 *
 * @since 1.0.0
 *
 * @param int $comment_id Comment ID
 * @param string $deprecated Not used
 * @return bool True on completion. False if no email addresses were specified.
 */
function wp_notify_postauthor( $comment_id, $deprecated = null ) {
	if ( null !== $deprecated ) {
		_deprecated_argument( __FUNCTION__, '3.8' );
	}

	$comment = get_comment( $comment_id );
	if ( empty( $comment ) )
		return false;

	$post    = get_post( $comment->comment_post_ID );
	$author  = get_userdata( $post->post_author );

	// Who to notify? By default, just the post author, but others can be added.
	$emails = array();
	if ( $author ) {
		$emails[] = $author->user_email;
	}

	/**
	 * Filter the list of email addresses to receive a comment notification.
	 *
	 * By default, only post authors are notified of comments. This filter allows
	 * others to be added.
	 *
	 * @since 3.7.0
	 *
	 * @param array $emails     An array of email addresses to receive a comment notification.
	 * @param int   $comment_id The comment ID.
	 */
	$emails = apply_filters( 'comment_notification_recipients', $emails, $comment_id );
	$emails = array_filter( $emails );

	// If there are no addresses to send the comment to, bail.
	if ( ! count( $emails ) ) {
		return false;
	}

	// Facilitate unsetting below without knowing the keys.
	$emails = array_flip( $emails );

	/**
	 * Filter whether to notify comment authors of their comments on their own posts.
	 *
	 * By default, comment authors aren't notified of their comments on their own
	 * posts. This filter allows you to override that.
	 *
	 * @since 3.8.0
	 *
	 * @param bool $notify     Whether to notify the post author of their own comment.
	 *                         Default false.
	 * @param int  $comment_id The comment ID.
	 */
	$notify_author = apply_filters( 'comment_notification_notify_author', false, $comment_id );

	// The comment was left by the author
	if ( $author && ! $notify_author && $comment->user_id == $post->post_author ) {
		unset( $emails[ $author->user_email ] );
	}

	// The author moderated a comment on their own post
	if ( $author && ! $notify_author && $post->post_author == get_current_user_id() ) {
		unset( $emails[ $author->user_email ] );
	}

	// The post author is no longer a member of the blog
	if ( $author && ! $notify_author && ! user_can( $post->post_author, 'read_post', $post->ID ) ) {
		unset( $emails[ $author->user_email ] );
	}

	// If there's no email to send the comment to, bail, otherwise flip array back around for use below
	if ( ! count( $emails ) ) {
		return false;
	} else {
		$emails = array_flip( $emails );
	}

	$comment_author_domain = @gethostbyaddr($comment->comment_author_IP);

	// The blogname option is escaped with esc_html on the way into the database in sanitize_option
	// we want to reverse this for the plain text arena of emails.
	$blogname = wp_specialchars_decode(get_option('blogname'), ENT_QUOTES);

	switch ( $comment->comment_type ) {
		case 'trackback':
			$notify_message  = sprintf( __( 'New trackback on your post "%s"' ), $post->post_title ) . "\r\n";
			/* translators: 1: website name, 2: author IP, 3: author domain */
			$notify_message .= sprintf( __('Website: %1$s (IP: %2$s , %3$s)'), $comment->comment_author, $comment->comment_author_IP, $comment_author_domain ) . "\r\n";
			$notify_message .= sprintf( __('URL    : %s'), $comment->comment_author_url ) . "\r\n";
			$notify_message .= __('Excerpt: ') . "\r\n" . $comment->comment_content . "\r\n\r\n";
			$notify_message .= __('You can see all trackbacks on this post here: ') . "\r\n";
			/* translators: 1: blog name, 2: post title */
			$subject = sprintf( __('[%1$s] Trackback: "%2$s"'), $blogname, $post->post_title );
			break;
		case 'pingback':
			$notify_message  = sprintf( __( 'New pingback on your post "%s"' ), $post->post_title ) . "\r\n";
			/* translators: 1: comment author, 2: author IP, 3: author domain */
			$notify_message .= sprintf( __('Website: %1$s (IP: %2$s , %3$s)'), $comment->comment_author, $comment->comment_author_IP, $comment_author_domain ) . "\r\n";
			$notify_message .= sprintf( __('URL    : %s'), $comment->comment_author_url ) . "\r\n";
			$notify_message .= __('Excerpt: ') . "\r\n" . sprintf('[...] %s [...]', $comment->comment_content ) . "\r\n\r\n";
			$notify_message .= __('You can see all pingbacks on this post here: ') . "\r\n";
			/* translators: 1: blog name, 2: post title */
			$subject = sprintf( __('[%1$s] Pingback: "%2$s"'), $blogname, $post->post_title );
			break;
		default: // Comments
			$notify_message  = sprintf( __( 'New comment on your post "%s"' ), $post->post_title ) . "\r\n";
			/* translators: 1: comment author, 2: author IP, 3: author domain */
			$notify_message .= sprintf( __('Author : %1$s (IP: %2$s , %3$s)'), $comment->comment_author, $comment->comment_author_IP, $comment_author_domain ) . "\r\n";
			$notify_message .= sprintf( __('E-mail : %s'), $comment->comment_author_email ) . "\r\n";
			$notify_message .= sprintf( __('URL    : %s'), $comment->comment_author_url ) . "\r\n";
			$notify_message .= sprintf( __('Whois  : http://whois.arin.net/rest/ip/%s'), $comment->comment_author_IP ) . "\r\n";
			$notify_message .= __('Comment: ') . "\r\n" . $comment->comment_content . "\r\n\r\n";
			$notify_message .= __('You can see all comments on this post here: ') . "\r\n";
			/* translators: 1: blog name, 2: post title */
			$subject = sprintf( __('[%1$s] Comment: "%2$s"'), $blogname, $post->post_title );
			break;
	}
	$notify_message .= get_permalink($comment->comment_post_ID) . "#comments\r\n\r\n";
	$notify_message .= sprintf( __('Permalink: %s'), get_comment_link( $comment_id ) ) . "\r\n";

	if ( user_can( $post->post_author, 'edit_comment', $comment_id ) ) {
		if ( EMPTY_TRASH_DAYS )
			$notify_message .= sprintf( __('Trash it: %s'), admin_url("comment.php?action=trash&c=$comment_id") ) . "\r\n";
		else
			$notify_message .= sprintf( __('Delete it: %s'), admin_url("comment.php?action=delete&c=$comment_id") ) . "\r\n";
		$notify_message .= sprintf( __('Spam it: %s'), admin_url("comment.php?action=spam&c=$comment_id") ) . "\r\n";
	}

	$wp_email = 'wordpress@' . preg_replace('#^www\.#', '', strtolower($_SERVER['SERVER_NAME']));

	if ( '' == $comment->comment_author ) {
		$from = "From: \"$blogname\" <$wp_email>";
		if ( '' != $comment->comment_author_email )
			$reply_to = "Reply-To: $comment->comment_author_email";
	} else {
		$from = "From: \"$comment->comment_author\" <$wp_email>";
		if ( '' != $comment->comment_author_email )
			$reply_to = "Reply-To: \"$comment->comment_author_email\" <$comment->comment_author_email>";
	}

	$message_headers = "$from\n"
		. "Content-Type: text/plain; charset=\"" . get_option('blog_charset') . "\"\n";

	if ( isset($reply_to) )
		$message_headers .= $reply_to . "\n";

	/**
	 * Filter the comment notification email text.
	 *
	 * @since 1.5.2
	 *
	 * @param string $notify_message The comment notification email text.
	 * @param int    $comment_id     Comment ID.
	 */
	$notify_message = apply_filters( 'comment_notification_text', $notify_message, $comment_id );

	/**
	 * Filter the comment notification email subject.
	 *
	 * @since 1.5.2
	 *
	 * @param string $subject    The comment notification email subject.
	 * @param int    $comment_id Comment ID.
	 */
	$subject = apply_filters( 'comment_notification_subject', $subject, $comment_id );

	/**
	 * Filter the comment notification email headers.
	 *
	 * @since 1.5.2
	 *
	 * @param string $message_headers Headers for the comment notification email.
	 * @param int    $comment_id      Comment ID.
	 */
	$message_headers = apply_filters( 'comment_notification_headers', $message_headers, $comment_id );

	foreach ( $emails as $email ) {
		@wp_mail( $email, wp_specialchars_decode( $subject ), $notify_message, $message_headers );
	}

	return true;
}
endif;

if ( !function_exists('wp_notify_moderator') ) :
/**
 * Notifies the moderator of the blog about a new comment that is awaiting approval.
 *
 * @since 1.0.0
 *
 * @uses $wpdb
 *
 * @param int $comment_id Comment ID
 * @return bool Always returns true
 */
function wp_notify_moderator($comment_id) {
	global $wpdb;

	if ( 0 == get_option( 'moderation_notify' ) )
		return true;

	$comment = get_comment($comment_id);
	$post = get_post($comment->comment_post_ID);
	$user = get_userdata( $post->post_author );
	// Send to the administration and to the post author if the author can modify the comment.
	$emails = array( get_option( 'admin_email' ) );
	if ( user_can( $user->ID, 'edit_comment', $comment_id ) && ! empty( $user->user_email ) ) {
		if ( 0 !== strcasecmp( $user->user_email, get_option( 'admin_email' ) ) )
			$emails[] = $user->user_email;
	}

	$comment_author_domain = @gethostbyaddr($comment->comment_author_IP);
	$comments_waiting = $wpdb->get_var("SELECT count(comment_ID) FROM $wpdb->comments WHERE comment_approved = '0'");

	// The blogname option is escaped with esc_html on the way into the database in sanitize_option
	// we want to reverse this for the plain text arena of emails.
	$blogname = wp_specialchars_decode(get_option('blogname'), ENT_QUOTES);

	switch ( $comment->comment_type ) {
		case 'trackback':
			$notify_message  = sprintf( __('A new trackback on the post "%s" is waiting for your approval'), $post->post_title ) . "\r\n";
			$notify_message .= get_permalink($comment->comment_post_ID) . "\r\n\r\n";
			$notify_message .= sprintf( __('Website : %1$s (IP: %2$s , %3$s)'), $comment->comment_author, $comment->comment_author_IP, $comment_author_domain ) . "\r\n";
			$notify_message .= sprintf( __('URL    : %s'), $comment->comment_author_url ) . "\r\n";
			$notify_message .= __('Trackback excerpt: ') . "\r\n" . $comment->comment_content . "\r\n\r\n";
			break;
		case 'pingback':
			$notify_message  = sprintf( __('A new pingback on the post "%s" is waiting for your approval'), $post->post_title ) . "\r\n";
			$notify_message .= get_permalink($comment->comment_post_ID) . "\r\n\r\n";
			$notify_message .= sprintf( __('Website : %1$s (IP: %2$s , %3$s)'), $comment->comment_author, $comment->comment_author_IP, $comment_author_domain ) . "\r\n";
			$notify_message .= sprintf( __('URL    : %s'), $comment->comment_author_url ) . "\r\n";
			$notify_message .= __('Pingback excerpt: ') . "\r\n" . $comment->comment_content . "\r\n\r\n";
			break;
		default: // Comments
			$notify_message  = sprintf( __('A new comment on the post "%s" is waiting for your approval'), $post->post_title ) . "\r\n";
			$notify_message .= get_permalink($comment->comment_post_ID) . "\r\n\r\n";
			$notify_message .= sprintf( __('Author : %1$s (IP: %2$s , %3$s)'), $comment->comment_author, $comment->comment_author_IP, $comment_author_domain ) . "\r\n";
			$notify_message .= sprintf( __('E-mail : %s'), $comment->comment_author_email ) . "\r\n";
			$notify_message .= sprintf( __('URL    : %s'), $comment->comment_author_url ) . "\r\n";
			$notify_message .= sprintf( __('Whois  : http://whois.arin.net/rest/ip/%s'), $comment->comment_author_IP ) . "\r\n";
			$notify_message .= __('Comment: ') . "\r\n" . $comment->comment_content . "\r\n\r\n";
			break;
	}

	$notify_message .= sprintf( __('Approve it: %s'),  admin_url("comment.php?action=approve&c=$comment_id") ) . "\r\n";
	if ( EMPTY_TRASH_DAYS )
		$notify_message .= sprintf( __('Trash it: %s'), admin_url("comment.php?action=trash&c=$comment_id") ) . "\r\n";
	else
		$notify_message .= sprintf( __('Delete it: %s'), admin_url("comment.php?action=delete&c=$comment_id") ) . "\r\n";
	$notify_message .= sprintf( __('Spam it: %s'), admin_url("comment.php?action=spam&c=$comment_id") ) . "\r\n";

	$notify_message .= sprintf( _n('Currently %s comment is waiting for approval. Please visit the moderation panel:',
 		'Currently %s comments are waiting for approval. Please visit the moderation panel:', $comments_waiting), number_format_i18n($comments_waiting) ) . "\r\n";
	$notify_message .= admin_url("edit-comments.php?comment_status=moderated") . "\r\n";

	$subject = sprintf( __('[%1$s] Please moderate: "%2$s"'), $blogname, $post->post_title );
	$message_headers = '';

	/**
	 * Filter the list of recipients for comment moderation emails.
	 *
	 * @since 3.7.0
	 *
	 * @param array $emails     List of email addresses to notify for comment moderation.
	 * @param int   $comment_id Comment ID.
	 */
	$emails = apply_filters( 'comment_moderation_recipients', $emails, $comment_id );

	/**
	 * Filter the comment moderation email text.
	 *
	 * @since 1.5.2
	 *
	 * @param string $notify_message Text of the comment moderation email.
	 * @param int    $comment_id     Comment ID.
	 */
	$notify_message = apply_filters( 'comment_moderation_text', $notify_message, $comment_id );

	/**
	 * Filter the comment moderation email subject.
	 *
	 * @since 1.5.2
	 *
	 * @param string $subject    Subject of the comment moderation email.
	 * @param int    $comment_id Comment ID.
	 */
	$subject = apply_filters( 'comment_moderation_subject', $subject, $comment_id );

	/**
	 * Filter the comment moderation email headers.
	 *
	 * @since 2.8.0
	 *
	 * @param string $message_headers Headers for the comment moderation email.
	 * @param int    $comment_id      Comment ID.
	 */
	$message_headers = apply_filters( 'comment_moderation_headers', $message_headers, $comment_id );

	foreach ( $emails as $email ) {
		@wp_mail( $email, wp_specialchars_decode( $subject ), $notify_message, $message_headers );
	}

	return true;
}
endif;

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if ( !function_exists('check_admin_referer') ) :

/**

* Makes sure that a user was referred from another admin page.

* To avoid security exploits.

* @since 1.2.0

* @param string $action Action nonce

* @param string $query_arg where to look for nonce in $_REQUEST (since 2.5)

function check_admin_referer($action = -1, $query_arg = '_wpnonce') {

if ( -1 == $action )

_doing_it_wrong( __FUNCTION__, __( 'You should specify a nonce action to be verified by using the first parameter.' ), '3.2' );

$adminurl = strtolower(admin_url());

$referer = strtolower(wp_get_referer());

$result = isset($_REQUEST[$query_arg]) ? wp_verify_nonce($_REQUEST[$query_arg], $action) : false;

if ( !$result && !(-1 == $action && strpos($referer, $adminurl) === 0) ) {

wp_nonce_ays($action);

die();

}

/**

* Fires once the admin request has been validated or not.

* @since 1.5.1

* @param string $action The nonce action.

* @param bool $result Whether the admin request nonce was validated.

do_action( 'check_admin_referer', $action, $result );

return $result;

}

endif;

if ( !function_exists('check_ajax_referer') ) :

/**

* Verifies the AJAX request to prevent processing requests external of the blog.

* @since 2.0.3

* @param string $action Action nonce

* @param string $query_arg where to look for nonce in $_REQUEST (since 2.5)

function check_ajax_referer( $action = -1, $query_arg = false, $die = true ) {

$nonce = '';

if ( $query_arg && isset( $_REQUEST[ $query_arg ] ) )

$nonce = $_REQUEST[ $query_arg ];

elseif ( isset( $_REQUEST['_ajax_nonce'] ) )

$nonce = $_REQUEST['_ajax_nonce'];

elseif ( isset( $_REQUEST['_wpnonce'] ) )

$nonce = $_REQUEST['_wpnonce'];

$result = wp_verify_nonce( $nonce, $action );

if ( $die && false == $result ) {

if ( defined( 'DOING_AJAX' ) && DOING_AJAX )

wp_die( -1 );

else

die( '-1' );

}

/**

* Fires once the AJAX request has been validated or not.

* @since 2.1.0

* @param string $action The AJAX nonce action.

* @param bool $result Whether the AJAX request nonce was validated.

do_action( 'check_ajax_referer', $action, $result );

return $result;

}

endif;

if ( !function_exists('wp_redirect') ) :

/**

* Redirects to another page.

* @since 1.5.1

* @param string $location The path to redirect to.

* @param int $status Status code to use.

* @return bool False if $location is not provided, true otherwise.

function wp_redirect($location, $status = 302) {

global $is_IIS;

/**

* Filter the redirect location.

* @since 2.1.0

* @param string $location The path to redirect to.

* @param int $status Status code to use.

$location = apply_filters( 'wp_redirect', $location, $status );

/**

* Filter the redirect status code.

* @since 2.3.0

* @param int $status Status code to use.

* @param string $location The path to redirect to.

$status = apply_filters( 'wp_redirect_status', $status, $location );

if ( ! $location )

return false;

$location = wp_sanitize_redirect($location);

if ( !$is_IIS && php_sapi_name() != 'cgi-fcgi' )

status_header($status); // This causes problems on IIS and some FastCGI setups

header("Location: $location", true, $status);

return true;

}

endif;

if ( !function_exists('wp_sanitize_redirect') ) :

/**

* Sanitizes a URL for use in a redirect.

* @since 2.3.0

* @return string redirect-sanitized URL

**/

function wp_sanitize_redirect($location) {

$location = preg_replace('|[^a-z0-9-~+_.?#=&;,/:%!*]|i', '', $location);

$location = wp_kses_no_null($location);

// remove %0d and %0a from location

$strip = array('%0d', '%0a', '%0D', '%0A');

$location = _deep_replace($strip, $location);

return $location;

}

endif;

if ( !function_exists('wp_safe_redirect') ) :

/**

* Performs a safe (local) redirect, using wp_redirect().

* Checks whether the $location is using an allowed host, if it has an absolute

* path. A plugin can therefore set or remove allowed host(s) to or from the

* list.

* If the host is not allowed, then the redirect is to wp-admin on the siteurl

* instead. This prevents malicious redirects which redirect to another host,

* but only used in a few places.

* @since 2.3.0

* @uses wp_validate_redirect() To validate the redirect is to an allowed host.

* @return void Does not return anything

**/

function wp_safe_redirect($location, $status = 302) {

// Need to look at the URL the way it will end up in wp_redirect()

$location = wp_sanitize_redirect($location);

$location = wp_validate_redirect($location, admin_url());

wp_redirect($location, $status);

}

endif;

if ( !function_exists('wp_validate_redirect') ) :

/**

* Validates a URL for use in a redirect.

* Checks whether the $location is using an allowed host, if it has an absolute

* path. A plugin can therefore set or remove allowed host(s) to or from the

* list.

* If the host is not allowed, then the redirect is to $default supplied

* @since 2.8.1

* @param string $location The redirect to validate

* @param string $default The value to return if $location is not allowed

* @return string redirect-sanitized URL

**/

function wp_validate_redirect($location, $default = '') {

$location = trim( $location );

// browsers will assume 'http' is your protocol, and will obey a redirect to a URL starting with '//'

if ( substr($location, 0, 2) == '//' )

$location = 'http:' . $location;

// In php 5 parse_url may fail if the URL query part contains http://, bug #38143

$test = ( $cut = strpos($location, '?') ) ? substr( $location, 0, $cut ) : $location;

$lp = parse_url($test);

// Give up if malformed URL

if ( false === $lp )

return $default;

// Allow only http and https schemes. No data:, etc.

if ( isset($lp['scheme']) && !('http' == $lp['scheme'] || 'https' == $lp['scheme']) )

return $default;

// Reject if scheme is set but host is not. This catches urls like https:host.com for which parse_url does not set the host field.

if ( isset($lp['scheme']) && !isset($lp['host']) )

return $default;

$wpp = parse_url(home_url());

/**

* Filter the whitelist of hosts to redirect to.

* @since 2.3.0

* @param array $hosts An array of allowed hosts.

* @param bool|string $host The parsed host; empty if not isset.

$allowed_hosts = (array) apply_filters( 'allowed_redirect_hosts', array($wpp['host']), isset($lp['host']) ? $lp['host'] : '' );

if ( isset($lp['host']) && ( !in_array($lp['host'], $allowed_hosts) && $lp['host'] != strtolower($wpp['host'])) )

$location = $default;

return $location;

}

endif;

if ( ! function_exists('wp_notify_postauthor') ) :

/**

* Notify an author (and/or others) of a comment/trackback/pingback on a post.

* @since 1.0.0

* @param int $comment_id Comment ID

* @param string $deprecated Not used

* @return bool True on completion. False if no email addresses were specified.

function wp_notify_postauthor( $comment_id, $deprecated = null ) {

if ( null !== $deprecated ) {

_deprecated_argument( __FUNCTION__, '3.8' );

}

$comment = get_comment( $comment_id );

if ( empty( $comment ) )

return false;

$post = get_post( $comment->comment_post_ID );

$author = get_userdata( $post->post_author );

// Who to notify? By default, just the post author, but others can be added.

$emails = array();

if ( $author ) {

$emails[] = $author->user_email;

}

/**

* Filter the list of email addresses to receive a comment notification.

* By default, only post authors are notified of comments. This filter allows

* others to be added.

* @since 3.7.0

* @param array $emails An array of email addresses to receive a comment notification.

* @param int $comment_id The comment ID.

$emails = apply_filters( 'comment_notification_recipients', $emails, $comment_id );

$emails = array_filter( $emails );

// If there are no addresses to send the comment to, bail.

if ( ! count( $emails ) ) {

return false;

}

// Facilitate unsetting below without knowing the keys.

$emails = array_flip( $emails );

/**

* Filter whether to notify comment authors of their comments on their own posts.

* By default, comment authors aren't notified of their comments on their own

* posts. This filter allows you to override that.

* @since 3.8.0

* @param bool $notify Whether to notify the post author of their own comment.

* Default false.

* @param int $comment_id The comment ID.

$notify_author = apply_filters( 'comment_notification_notify_author', false, $comment_id );

// The comment was left by the author

if ( $author && ! $notify_author && $comment->user_id == $post->post_author ) {

unset( $emails[ $author->user_email ] );

}

// The author moderated a comment on their own post

if ( $author && ! $notify_author && $post->post_author == get_current_user_id() ) {

unset( $emails[ $author->user_email ] );

}

// The post author is no longer a member of the blog

if ( $author && ! $notify_author && ! user_can( $post->post_author, 'read_post', $post->ID ) ) {

unset( $emails[ $author->user_email ] );

}

// If there's no email to send the comment to, bail, otherwise flip array back around for use below

if ( ! count( $emails ) ) {

return false;

} else {

$emails = array_flip( $emails );

}

$comment_author_domain = @gethostbyaddr($comment->comment_author_IP);

// The blogname option is escaped with esc_html on the way into the database in sanitize_option

// we want to reverse this for the plain text arena of emails.

$blogname = wp_specialchars_decode(get_option('blogname'), ENT_QUOTES);

switch ( $comment->comment_type ) {

case 'trackback':

$notify_message = sprintf( __( 'New trackback on your post "%s"' ), $post->post_title ) . "\r\n";

/* translators: 1: website name, 2: author IP, 3: author domain */

$notify_message .= sprintf( __('Website: %1$s (IP: %2$s , %3$s)'), $comment->comment_author, $comment->comment_author_IP, $comment_author_domain ) . "\r\n";

$notify_message .= sprintf( __('URL : %s'), $comment->comment_author_url ) . "\r\n";

$notify_message .= __('Excerpt: ') . "\r\n" . $comment->comment_content . "\r\n\r\n";

$notify_message .= __('You can see all trackbacks on this post here: ') . "\r\n";

/* translators: 1: blog name, 2: post title */

$subject = sprintf( __('[%1$s] Trackback: "%2$s"'), $blogname, $post->post_title );

break;

case 'pingback':

$notify_message = sprintf( __( 'New pingback on your post "%s"' ), $post->post_title ) . "\r\n";

/* translators: 1: comment author, 2: author IP, 3: author domain */

$notify_message .= sprintf( __('Website: %1$s (IP: %2$s , %3$s)'), $comment->comment_author, $comment->comment_author_IP, $comment_author_domain ) . "\r\n";

$notify_message .= sprintf( __('URL : %s'), $comment->comment_author_url ) . "\r\n";

$notify_message .= __('Excerpt: ') . "\r\n" . sprintf('[...] %s [...]', $comment->comment_content ) . "\r\n\r\n";

$notify_message .= __('You can see all pingbacks on this post here: ') . "\r\n";

/* translators: 1: blog name, 2: post title */

$subject = sprintf( __('[%1$s] Pingback: "%2$s"'), $blogname, $post->post_title );

break;

default: // Comments

$notify_message = sprintf( __( 'New comment on your post "%s"' ), $post->post_title ) . "\r\n";

/* translators: 1: comment author, 2: author IP, 3: author domain */

$notify_message .= sprintf( __('Author : %1$s (IP: %2$s , %3$s)'), $comment->comment_author, $comment->comment_author_IP, $comment_author_domain ) . "\r\n";

$notify_message .= sprintf( __('E-mail : %s'), $comment->comment_author_email ) . "\r\n";

$notify_message .= sprintf( __('URL : %s'), $comment->comment_author_url ) . "\r\n";

$notify_message .= sprintf( __('Whois : http://whois.arin.net/rest/ip/%s'), $comment->comment_author_IP ) . "\r\n";

$notify_message .= __('Comment: ') . "\r\n" . $comment->comment_content . "\r\n\r\n";

$notify_message .= __('You can see all comments on this post here: ') . "\r\n";

/* translators: 1: blog name, 2: post title */

$subject = sprintf( __('[%1$s] Comment: "%2$s"'), $blogname, $post->post_title );

break;

}

$notify_message .= get_permalink($comment->comment_post_ID) . "#comments\r\n\r\n";

$notify_message .= sprintf( __('Permalink: %s'), get_comment_link( $comment_id ) ) . "\r\n";

if ( user_can( $post->post_author, 'edit_comment', $comment_id ) ) {

if ( EMPTY_TRASH_DAYS )

$notify_message .= sprintf( __('Trash it: %s'), admin_url("comment.php?action=trash&c=$comment_id") ) . "\r\n";

else

$notify_message .= sprintf( __('Delete it: %s'), admin_url("comment.php?action=delete&c=$comment_id") ) . "\r\n";

$notify_message .= sprintf( __('Spam it: %s'), admin_url("comment.php?action=spam&c=$comment_id") ) . "\r\n";

}

$wp_email = 'wordpress@' . preg_replace('#^www\.#', '', strtolower($_SERVER['SERVER_NAME']));

if ( '' == $comment->comment_author ) {

$from = "From: \"$blogname\" <$wp_email>";

if ( '' != $comment->comment_author_email )

$reply_to = "Reply-To: $comment->comment_author_email";

} else {

$from = "From: \"$comment->comment_author\" <$wp_email>";

if ( '' != $comment->comment_author_email )

$reply_to = "Reply-To: \"$comment->comment_author_email\" <$comment->comment_author_email>";

}

$message_headers = "$from\n"

. "Content-Type: text/plain; charset=\"" . get_option('blog_charset') . "\"\n";

if ( isset($reply_to) )

$message_headers .= $reply_to . "\n";

/**

* Filter the comment notification email text.

* @since 1.5.2

* @param string $notify_message The comment notification email text.

* @param int $comment_id Comment ID.

$notify_message = apply_filters( 'comment_notification_text', $notify_message, $comment_id );

/**

* Filter the comment notification email subject.

* @since 1.5.2

* @param string $subject The comment notification email subject.

* @param int $comment_id Comment ID.

$subject = apply_filters( 'comment_notification_subject', $subject, $comment_id );

/**

* Filter the comment notification email headers.

* @since 1.5.2

* @param string $message_headers Headers for the comment notification email.

* @param int $comment_id Comment ID.

$message_headers = apply_filters( 'comment_notification_headers', $message_headers, $comment_id );

foreach ( $emails as $email ) {

@wp_mail( $email, wp_specialchars_decode( $subject ), $notify_message, $message_headers );

}

return true;

}

endif;

if ( !function_exists('wp_notify_moderator') ) :

/**

* Notifies the moderator of the blog about a new comment that is awaiting approval.

* @since 1.0.0

* @uses $wpdb

* @param int $comment_id Comment ID

* @return bool Always returns true

function wp_notify_moderator($comment_id) {

global $wpdb;

if ( 0 == get_option( 'moderation_notify' ) )

return true;

$comment = get_comment($comment_id);

$post = get_post($comment->comment_post_ID);

$user = get_userdata( $post->post_author );

// Send to the administration and to the post author if the author can modify the comment.

$emails = array( get_option( 'admin_email' ) );

if ( user_can( $user->ID, 'edit_comment', $comment_id ) && ! empty( $user->user_email ) ) {

if ( 0 !== strcasecmp( $user->user_email, get_option( 'admin_email' ) ) )

$emails[] = $user->user_email;

}

$comment_author_domain = @gethostbyaddr($comment->comment_author_IP);

$comments_waiting = $wpdb->get_var("SELECT count(comment_ID) FROM $wpdb->comments WHERE comment_approved = '0'");

// The blogname option is escaped with esc_html on the way into the database in sanitize_option

// we want to reverse this for the plain text arena of emails.

$blogname = wp_specialchars_decode(get_option('blogname'), ENT_QUOTES);

switch ( $comment->comment_type ) {

case 'trackback':

$notify_message = sprintf( __('A new trackback on the post "%s" is waiting for your approval'), $post->post_title ) . "\r\n";

$notify_message .= get_permalink($comment->comment_post_ID) . "\r\n\r\n";

$notify_message .= sprintf( __('Website : %1$s (IP: %2$s , %3$s)'), $comment->comment_author, $comment->comment_author_IP, $comment_author_domain ) . "\r\n";

$notify_message .= sprintf( __('URL : %s'), $comment->comment_author_url ) . "\r\n";

$notify_message .= __('Trackback excerpt: ') . "\r\n" . $comment->comment_content . "\r\n\r\n";

break;

case 'pingback':

$notify_message = sprintf( __('A new pingback on the post "%s" is waiting for your approval'), $post->post_title ) . "\r\n";

$notify_message .= get_permalink($comment->comment_post_ID) . "\r\n\r\n";

$notify_message .= sprintf( __('Website : %1$s (IP: %2$s , %3$s)'), $comment->comment_author, $comment->comment_author_IP, $comment_author_domain ) . "\r\n";

$notify_message .= sprintf( __('URL : %s'), $comment->comment_author_url ) . "\r\n";

$notify_message .= __('Pingback excerpt: ') . "\r\n" . $comment->comment_content . "\r\n\r\n";

break;

default: // Comments

$notify_message = sprintf( __('A new comment on the post "%s" is waiting for your approval'), $post->post_title ) . "\r\n";

$notify_message .= get_permalink($comment->comment_post_ID) . "\r\n\r\n";

$notify_message .= sprintf( __('Author : %1$s (IP: %2$s , %3$s)'), $comment->comment_author, $comment->comment_author_IP, $comment_author_domain ) . "\r\n";

$notify_message .= sprintf( __('E-mail : %s'), $comment->comment_author_email ) . "\r\n";

$notify_message .= sprintf( __('URL : %s'), $comment->comment_author_url ) . "\r\n";

$notify_message .= sprintf( __('Whois : http://whois.arin.net/rest/ip/%s'), $comment->comment_author_IP ) . "\r\n";

$notify_message .= __('Comment: ') . "\r\n" . $comment->comment_content . "\r\n\r\n";

break;

}

$notify_message .= sprintf( __('Approve it: %s'), admin_url("comment.php?action=approve&c=$comment_id") ) . "\r\n";

if ( EMPTY_TRASH_DAYS )

$notify_message .= sprintf( __('Trash it: %s'), admin_url("comment.php?action=trash&c=$comment_id") ) . "\r\n";

else

$notify_message .= sprintf( __('Delete it: %s'), admin_url("comment.php?action=delete&c=$comment_id") ) . "\r\n";

$notify_message .= sprintf( __('Spam it: %s'), admin_url("comment.php?action=spam&c=$comment_id") ) . "\r\n";

$notify_message .= sprintf( _n('Currently %s comment is waiting for approval. Please visit the moderation panel:',

'Currently %s comments are waiting for approval. Please visit the moderation panel:', $comments_waiting), number_format_i18n($comments_waiting) ) . "\r\n";

$notify_message .= admin_url("edit-comments.php?comment_status=moderated") . "\r\n";

$subject = sprintf( __('[%1$s] Please moderate: "%2$s"'), $blogname, $post->post_title );

$message_headers = '';

/**

* Filter the list of recipients for comment moderation emails.

* @since 3.7.0

* @param array $emails List of email addresses to notify for comment moderation.

* @param int $comment_id Comment ID.

$emails = apply_filters( 'comment_moderation_recipients', $emails, $comment_id );

/**

* Filter the comment moderation email text.

* @since 1.5.2

* @param string $notify_message Text of the comment moderation email.

* @param int $comment_id Comment ID.

$notify_message = apply_filters( 'comment_moderation_text', $notify_message, $comment_id );

/**

* Filter the comment moderation email subject.

* @since 1.5.2

* @param string $subject Subject of the comment moderation email.

* @param int $comment_id Comment ID.

$subject = apply_filters( 'comment_moderation_subject', $subject, $comment_id );

/**

* Filter the comment moderation email headers.

* @since 2.8.0

* @param string $message_headers Headers for the comment moderation email.

* @param int $comment_id Comment ID.

$message_headers = apply_filters( 'comment_moderation_headers', $message_headers, $comment_id );

foreach ( $emails as $email ) {

@wp_mail( $email, wp_specialchars_decode( $subject ), $notify_message, $message_headers );

}

return true;

}

endif;

- Wordpress

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WordPressを読む 96-3 /blog/wp-includes/pluggable.php 3

WordPressを読む　96-3 /blog/wp-includes/pluggable.php 3