%PDF-
%PDF-
Mini Shell
Mini Shell
<?php
/**
* bbPress Formatting
*
* @package bbPress
* @subpackage Formatting
*/
// Exit if accessed directly
if ( !defined( 'ABSPATH' ) ) exit;
/** Kses **********************************************************************/
/**
* Custom allowed tags for forum topics and replies
*
* Allows all users to post links, quotes, code, formatting, lists, and images
*
* @since bbPress (r4603)
*
* @return array Associative array of allowed tags and attributes
*/
function bbp_kses_allowed_tags() {
return apply_filters( 'bbp_kses_allowed_tags', array(
// Links
'a' => array(
'href' => array(),
'title' => array(),
'rel' => array(),
'target' => array()
),
// Quotes
'blockquote' => array(
'cite' => array()
),
// Code
'code' => array(),
'pre' => array(),
// Formatting
'em' => array(),
'strong' => array(),
'del' => array(
'datetime' => true,
),
// Lists
'ul' => array(),
'ol' => array(
'start' => true,
),
'li' => array(),
// Images
'img' => array(
'src' => true,
'border' => true,
'alt' => true,
'height' => true,
'width' => true,
)
) );
}
/**
* Custom kses filter for forum topics and replies, for filtering incoming data
*
* @since bbPress (r4603)
*
* @param string $data Content to filter, expected to be escaped with slashes
* @return string Filtered content
*/
function bbp_filter_kses( $data = '' ) {
return addslashes( wp_kses( stripslashes( $data ), bbp_kses_allowed_tags() ) );
}
/**
* Custom kses filter for forum topics and replies, for raw data
*
* @since bbPress (r4603)
*
* @param string $data Content to filter, expected to not be escaped
* @return string Filtered content
*/
function bbp_kses_data( $data = '' ) {
return wp_kses( $data , bbp_kses_allowed_tags() );
}
/** Formatting ****************************************************************/
/**
* Filter the topic or reply content and output code and pre tags
*
* @since bbPress (r4641)
*
* @param string $content Topic and reply content
* @return string Partially encodedd content
*/
function bbp_code_trick( $content = '' ) {
$content = str_replace( array( "\r\n", "\r" ), "\n", $content );
$content = preg_replace_callback( "|(`)(.*?)`|", 'bbp_encode_callback', $content );
$content = preg_replace_callback( "!(^|\n)`(.*?)`!s", 'bbp_encode_callback', $content );
return $content;
}
/**
* When editing a topic or reply, reverse the code trick so the textarea
* contains the correct editable content.
*
* @since bbPress (r4641)
*
* @param string $content Topic and reply content
* @return string Partially encodedd content
*/
function bbp_code_trick_reverse( $content = '' ) {
// Setup variables
$openers = array( '<p>', '<br />' );
$content = preg_replace_callback( "!(<pre><code>|<code>)(.*?)(</code></pre>|</code>)!s", 'bbp_decode_callback', $content );
// Do the do
$content = str_replace( $openers, '', $content );
$content = str_replace( '</p>', "\n", $content );
$content = str_replace( '<coded_br />', '<br />', $content );
$content = str_replace( '<coded_p>', '<p>', $content );
$content = str_replace( '</coded_p>', '</p>', $content );
return $content;
}
/**
* Filter the content and encode any bad HTML tags
*
* @since bbPress (r4641)
*
* @param string $content Topic and reply content
* @return string Partially encodedd content
*/
function bbp_encode_bad( $content = '' ) {
// Setup variables
$content = _wp_specialchars( $content, ENT_NOQUOTES );
$content = preg_split( '@(`[^`]*`)@m', $content, -1, PREG_SPLIT_NO_EMPTY + PREG_SPLIT_DELIM_CAPTURE );
$allowed = bbp_kses_allowed_tags();
$empty = array(
'br' => true,
'hr' => true,
'img' => true,
'input' => true,
'param' => true,
'area' => true,
'col' => true,
'embed' => true
);
// Loop through allowed tags and compare for empty and normal tags
foreach ( $allowed as $tag => $args ) {
$preg = $args ? "{$tag}(?:\s.*?)?" : $tag;
// Which walker to use based on the tag and arguments
if ( isset( $empty[$tag] ) ) {
array_walk( $content, 'bbp_encode_empty_callback', $preg );
} else {
array_walk( $content, 'bbp_encode_normal_callback', $preg );
}
}
// Return the joined content array
return implode( '', $content );
}
/** Code Callbacks ************************************************************/
/**
* Callback to encode the tags in topic or reply content
*
* @since bbPress (r4641)
*
* @param array $matches
* @return string
*/
function bbp_encode_callback( $matches = array() ) {
// Trim inline code, not pre blocks (to prevent removing indentation)
if ( "`" === $matches[1] ) {
$content = trim( $matches[2] );
} else {
$content = $matches[2];
}
// Do some replacing
$content = htmlspecialchars( $content, ENT_QUOTES );
$content = str_replace( array( "\r\n", "\r" ), "\n", $content );
$content = preg_replace( "|\n\n\n+|", "\n\n", $content );
$content = str_replace( '&amp;', '&', $content );
$content = str_replace( '&lt;', '<', $content );
$content = str_replace( '&gt;', '>', $content );
// Wrap in code tags
$content = '<code>' . $content . '</code>';
// Wrap blocks in pre tags
if ( "`" !== $matches[1] ) {
$content = "\n<pre>" . $content . "</pre>\n";
}
return $content;
}
/**
* Callback to decode the tags in topic or reply content
*
* @since bbPress (r4641)
*
* @param array $matches
* @todo Experiment with _wp_specialchars()
* @return string
*/
function bbp_decode_callback( $matches = array() ) {
// Setup variables
$trans_table = array_flip( get_html_translation_table( HTML_ENTITIES ) );
$amps = array( '&','&', '&' );
$single = array( ''',''' );
$content = $matches[2];
$content = strtr( $content, $trans_table );
// Do the do
$content = str_replace( '<br />', '<coded_br />', $content );
$content = str_replace( '<p>', '<coded_p>', $content );
$content = str_replace( '</p>', '</coded_p>', $content );
$content = str_replace( $amps, '&', $content );
$content = str_replace( $single, "'", $content );
// Return content wrapped in code tags
return '`' . $content . '`';
}
/**
* Callback to replace empty HTML tags in a content string
*
* @since bbPress (r4641)
*
* @internal Used by bbp_encode_bad()
* @param string $content
* @param string $key Not used
* @param string $preg
*/
function bbp_encode_empty_callback( &$content = '', $key = '', $preg = '' ) {
if ( strpos( $content, '`' ) !== 0 ) {
$content = preg_replace( "|<({$preg})\s*?/*?>|i", '<$1 />', $content );
}
}
/**
* Callback to replace normal HTML tags in a content string
*
* @since bbPress (r4641)
*
* @internal Used by bbp_encode_bad()
* @param type $content
* @param type $key
* @param type $preg
*/
function bbp_encode_normal_callback( &$content = '', $key = '', $preg = '') {
if ( strpos( $content, '`' ) !== 0 ) {
$content = preg_replace( "|<(/?{$preg})>|i", '<$1>', $content );
}
}
/** No Follow *****************************************************************/
/**
* Catches links so rel=nofollow can be added (on output, not save)
*
* @since bbPress (r4865)
* @param string $text Post text
* @return string $text Text with rel=nofollow added to any links
*/
function bbp_rel_nofollow( $text = '' ) {
return preg_replace_callback( '|<a (.+?)>|i', 'bbp_rel_nofollow_callback', $text );
}
/**
* Adds rel=nofollow to a link
*
* @since bbPress (r4865)
* @param array $matches
* @return string $text Link with rel=nofollow added
*/
function bbp_rel_nofollow_callback( $matches = array() ) {
$text = $matches[1];
$text = str_replace( array( ' rel="nofollow"', " rel='nofollow'" ), '', $text );
return "<a $text rel=\"nofollow\">";
}
/** Make Clickable ************************************************************/
/**
* Convert plaintext URI to HTML links.
*
* Converts URI, www and ftp, and email addresses. Finishes by fixing links
* within links.
*
* This custom version of WordPress's make_clickable() skips links inside of
* pre and code tags.
*
* @since bbPress (r4941)
*
* @param string $text Content to convert URIs.
* @return string Content with converted URIs.
*/
function bbp_make_clickable( $text ) {
$r = '';
$textarr = preg_split( '/(<[^<>]+>)/', $text, -1, PREG_SPLIT_DELIM_CAPTURE ); // split out HTML tags
$nested_code_pre = 0; // Keep track of how many levels link is nested inside <pre> or <code>
foreach ( $textarr as $piece ) {
if ( preg_match( '|^<code[\s>]|i', $piece ) || preg_match( '|^<pre[\s>]|i', $piece ) || preg_match( '|^<script[\s>]|i', $piece ) || preg_match( '|^<style[\s>]|i', $piece ) ) {
$nested_code_pre++;
} elseif ( $nested_code_pre && ( '</code>' === strtolower( $piece ) || '</pre>' === strtolower( $piece ) || '</script>' === strtolower( $piece ) || '</style>' === strtolower( $piece ) ) ) {
$nested_code_pre--;
}
if ( $nested_code_pre || empty( $piece ) || ( $piece[0] === '<' && ! preg_match( '|^<\s*[\w]{1,20}+://|', $piece ) ) ) {
$r .= $piece;
continue;
}
// Long strings might contain expensive edge cases ...
if ( 10000 < strlen( $piece ) ) {
// ... break it up
foreach ( _split_str_by_whitespace( $piece, 2100 ) as $chunk ) { // 2100: Extra room for scheme and leading and trailing paretheses
if ( 2101 < strlen( $chunk ) ) {
$r .= $chunk; // Too big, no whitespace: bail.
} else {
$r .= bbp_make_clickable( $chunk );
}
}
} else {
$ret = " {$piece} "; // Pad with whitespace to simplify the regexes
$ret = apply_filters( 'bbp_make_clickable', $ret );
$ret = substr( $ret, 1, -1 ); // Remove our whitespace padding.
$r .= $ret;
}
}
// Cleanup of accidental links within links
return preg_replace( '#(<a([ \r\n\t]+[^>]+?>|>))<a [^>]+?>([^>]+?)</a></a>#i', "$1$3</a>", $r );
}
/**
* Make URLs clickable in content areas
*
* @since 2.6.0
*
* @param string $text
* @return string
*/
function bbp_make_urls_clickable( $text = '' ) {
$url_clickable = '~
([\\s(<.,;:!?]) # 1: Leading whitespace, or punctuation
( # 2: URL
[\\w]{1,20}+:// # Scheme and hier-part prefix
(?=\S{1,2000}\s) # Limit to URLs less than about 2000 characters long
[\\w\\x80-\\xff#%\\~/@\\[\\]*(+=&$-]*+ # Non-punctuation URL character
(?: # Unroll the Loop: Only allow puctuation URL character if followed by a non-punctuation URL character
[\'.,;:!?)] # Punctuation URL character
[\\w\\x80-\\xff#%\\~/@\\[\\]*(+=&$-]++ # Non-punctuation URL character
)*
)
(\)?) # 3: Trailing closing parenthesis (for parethesis balancing post processing)
~xS';
// The regex is a non-anchored pattern and does not have a single fixed starting character.
// Tell PCRE to spend more time optimizing since, when used on a page load, it will probably be used several times.
return preg_replace_callback( $url_clickable, '_make_url_clickable_cb', $text );
}
/**
* Make FTP clickable in content areas
*
* @since 2.6.0
*
* @see make_clickable()
*
* @param string $text
* @return string
*/
function bbp_make_ftps_clickable( $text = '' ) {
return preg_replace_callback( '#([\s>])((www|ftp)\.[\w\\x80-\\xff\#$%&~/.\-;:=,?@\[\]+]+)#is', '_make_web_ftp_clickable_cb', $text );
}
/**
* Make emails clickable in content areas
*
* @since 2.6.0
*
* @see make_clickable()
*
* @param string $text
* @return string
*/
function bbp_make_emails_clickable( $text = '' ) {
return preg_replace_callback( '#([\s>])([.0-9a-z_+-]+)@(([0-9a-z-]+\.)+[0-9a-z]{2,})#i', '_make_email_clickable_cb', $text );
}
/**
* Make mentions clickable in content areas
*
* @since 2.6.0
*
* @see make_clickable()
*
* @param string $text
* @return string
*/
function bbp_make_mentions_clickable( $text = '' ) {
return preg_replace_callback( '#([\s>])@([0-9a-zA-Z-_]+)#i', 'bbp_make_mentions_clickable_callback', $text );
}
/**
* Callback to convert mention matchs to HTML A tag.
*
* @since 2.6.0
*
* @param array $matches Single Regex Match.
*
* @return string HTML A tag with link to user profile.
*/
function bbp_make_mentions_clickable_callback( $matches = array() ) {
// Get user; bail if not found
$user = get_user_by( 'slug', $matches[2] );
if ( empty( $user ) || bbp_is_user_inactive( $user->ID ) ) {
return $matches[0];
}
// Create the link to the user's profile
$url = bbp_get_user_profile_url( $user->ID );
$anchor = '<a href="%1$s" rel="nofollow">@%2$s</a>';
$link = sprintf( $anchor, esc_url( $url ), esc_html( $user->user_nicename ) );
return $matches[1] . $link;
}
Zerion Mini Shell 1.0