/wp-content/plugins/simple-forum/library/sf-filters.php

Large files files are truncated, but you can click here to view the full file

<?php

/*

Simple:Press

Filters

$LastChangedDate: 2011-06-02 05:56:53 -0700 (Thu, 02 Jun 2011) $

$Rev: 6226 $

*/



if(preg_match('#' . basename(__FILE__) . '#', $_SERVER['PHP_SELF'])) {

	die('Access Denied');

}



# ===FILTERS - USEAGE ==============================================

#

#	sf_filter_content_save($content, $action)

#	sf_filter_content_display($content)

#	sf_filter_content_edit($content)

#		Used for main post/message content so includes html, images,

#		profanity etc.

#

#	sf_filter_text_save($content)

#	sf_filter_text_display($content)

#	sf_filter_text_edit($content)

#		Used for larger areas of text where html is allowed like

#		admin defined message areas etc.

#

#	sf_filter_title_save($content)

#	sf_filter_title_display($content)

#		Used for title text where no html allowed such as forum

#		titles, custom labels and links etc.

#

#	sf_filter_name_save($content)

#	sf_filter_name_display($content)

#		Used for user names such as guest name and display name etc.

#

#	sf_filter_email_save($email)

#	sf_filter_email_display($email)

#		Used for email addresses

#

#	sf_filter_url_save($url)

#	sf_filter_url_display($url)

#		Used for URLs

#

#	sf_filter_filename_save($filename)

#		used for all filenames - i.e., custom icons etc

#

#	sf_filter_signature_display($content)

#		special for siganture display

#

#	sf_filter_tooltip_display($content)

#		special for post tooltips

#

#	sf_filter_syntax_display($content)

#		special for synrax highlighting

#

#	sf_filter_rss_display($content)

#		Used for post content in rss feed

#

#	sf_filter_table_prefix($content)

#		removes prefix from tablename in seaches

#

# ==================================================================





# ===START OF SAVE FILTERS==========================================

#

# CONTENT - SAVE FILTERS UMBRELLA

#

# Used:	Forum Post (including Quick Reply)

#		Private Messages

#		Blog Linking Posts and Comments

#		?

# $action will be 'new' or 'edit'



function sf_filter_content_save($content, $action)

{

	global $sfglobals, $current_user;

	$sffilters = sf_get_option('sffilters');



	# 1: Swap smileys for img tags. Do it early before kses

	# NOTE Was a display filter - still needs to be a

	# display filter for backward compatibility.

	$content = sf_filter_display_smileys($content);



    # 2: prepare edits if using tinymce

    if ($action == 'edit' && $sfglobals['editor']['sfeditor'] == RICHTEXT)

    {

        $content = addslashes($content);

    }



	# 3: convert code tags to our own code display tags

	$content = sf_filter_save_codetags1($content, $sfglobals['editor']['sfeditor'], $action);



	# 4: run it through kses

	$content = sf_filter_save_kses($content);



	# 5: parse it for the wp oEmbed class

	$content = sf_filter_save_oEmbed($content);



	# 6: remove nbsp and p/br tags

	$content = sf_filter_save_linebreaks($content);



	# 7: revist code tags in case post edit save

	$content = sf_filter_save_codetags2($content, $sfglobals['editor']['sfeditor'], $action);



	# 8: remove 'pre' tags (optional)

	if ($sffilters['sffilterpre']) {

		$content = sf_filter_save_pre($content);

	}



	# 9: deal with single quotes (tinymce encodes them)

	$content = sf_filter_save_quotes($content);



	# 10: balance html tags

	$content = sf_filter_save_balancetags($content);



	# 11: format links (optional)

	if($sffilters['sfurlchars']) {

		$content = sf_filter_save_links($content, $sffilters['sfurlchars']);

	}



	# 12: add nofollow to links (optional)

	if ($sffilters['sfnofollow']) {

		$content = sf_filter_save_nofollow($content);

	}



	# 13: add target blank (optional)

	if ($sffilters['sftarget']) {

		$content = sf_filter_save_target($content);

	}



	# 14: profanity filter

	$content = sf_filter_save_profanity($content);



	# 15: escape it All

	$content = sf_filter_save_escape($content);



	# 16: strip spoiler shortcode if not allowed

	if (!$current_user->sfspoilers)

    {

	   $content = sf_filter_save_spoiler($content);

    }



	# 17: Try and determine images widths if not set

	$content = sf_filter_save_images($content);



	# 18: apply any users custom filters

	$content = apply_filters('sf_save_post_content', $content);



	return $content;

}



# ==================================================================

#

# TEXT - SAVE FILTERS UMBRELLA

#

# Used:	Profile Description

#		Blog Linking Link Text

#		Group Message

#		Forum Message

#		Email Messages

#		Signature Text

#		Announce Tag Heading/Text

#		Sneak Peak Message

#		Admin View Message

#		Custom Editor Messages

#		Registration/Privacy Messages

#		Custom Profile Message

#		Admins Off-Line Message

#		?



function sf_filter_text_save($content, $links=true)

{

	global $sfglobals;

	$sffilters = sf_get_option('sffilters');



	# Decode the entities first that were applied for display

	$content = html_entity_decode($content, ENT_COMPAT, SFCHARSET);



	# 1: run it through kses

	$content = sf_filter_save_kses($content);



	# 2: remove nbsp and p/br tags

	$content = sf_filter_save_linebreaks($content);



	# 3: deal with single quotes (tinymce encodes them)

	$content = sf_filter_save_quotes($content);



	# 4: balance html tags

	$content = sf_filter_save_balancetags($content);



    # are we altering links?

    if ($links)

    {

    	# 5: format links (optional)

    	if($sffilters['sfurlchars']) {

    		$content = sf_filter_save_links($content, $sffilters['sfurlchars']);

    	}



 		# 6: add nofollow to links (optional)

    	if ($sffilters['sfnofollow']) {

    		$content = sf_filter_save_nofollow($content);

    	}



    	# 7: add target blank (optional)

    	if ($sffilters['sftarget']) {

    		$content = sf_filter_save_target($content);

    	}



    }

	# 8: escape it All

	$content = sf_filter_save_escape($content);



	return $content;

}



# ==================================================================

#

# TITLE - SAVE FILTERS UMBRELLA

#

# Used:	Group Title/Description

#		Forum Title/Description

#		Topic Title

#		Message Title

#		Blog Linking Titles

#		Email Subject

#		Custom Meta Description/Keywords

#		Topic Status Name/List

#		Custom Icon Title

#		UserGroup Name/Description

#		Permission Name/Description

#		Profile Form Labels

#		?



function sf_filter_title_save($content)

{

	# 1: remove all html

	$content = sf_filter_save_nohtml($content);



	# 2: encode brackets

	$content = sf_filter_save_brackets($content);



	# 3: profanity filter

	$content = sf_filter_save_profanity($content);



	# 4: escape it All

	$content = sf_filter_save_escape($content);



	return $content;

}



# ==================================================================

#

# USER NAMES - SAVE FILTERS UMBRELLA

#

# Used:	Display Name

#		Guest Name

#		?



function sf_filter_name_save($content)

{

	# 1: Remove any html

	$content = sf_filter_save_nohtml($content);



	# 2: Encode

	$content = sf_filter_save_encode($content);



	# 3: escape it

	$content = sf_filter_save_escape($content);



	return $content;

}



# ==================================================================

#

# EMAIL ADDRESS - SAVE FILTERS UMBRELLA

#

# Used:	Guest posts

#		User profile

#		?



function sf_filter_email_save($email)

{

	# 1: Remove any html

	$email = sf_filter_save_nohtml($email);



	# 2: Validate and Sanitise Email

	$email = sf_filter_save_cleanemail($email);



	# 3: escape it

	$email = sf_filter_save_escape($email);



	return $email;

}



# ==================================================================

#

# URL - SAVE FILTERS UMBRELLA

#

# Used: All URLs

#		?



function sf_filter_url_save($url)

{

	# 1: clean up url for database

	$url = sf_filter_save_cleanurl($url);



	return $url;

}



# ==================================================================

#

# FILENAME - SAVE FILTERS UMBRELLA

#

# Used:	Avatar Upload

#		Avatar Pool

#		Signature Image

#		Custom Icons

#		Smileys

#		Editor Stylesheets

#		Registration/Privacy Documents

#		?



function sf_filter_filename_save($filename)

{

	# 1: clean up filename

	$filename = sf_filter_save_filename($filename);



	return $filename;

}





# ===START OF SAVE FILTERS==========================================



# ------------------------------------------------------------------

# sf_filter_save_codetags1()

#

# Try and change code tags to our code divs

#	$content:		Unfiltered post content

# ------------------------------------------------------------------

function sf_filter_save_codetags1($content, $editor, $action)

{

	global $sfglobals;



	switch($editor)

	{

		case RICHTEXT:

			# TinyMCE

			include_once (SF_PLUGIN_DIR.'/forum/parsers/sf-rtetohtml.php');

			$content = sf_RTE2Html(" ".$content);

			break;



		case BBCODE:

			# Send everything through bbCode below as some users use it in all editors

			break;



		default:

			# HTML and Plain Textaera

			include_once (SF_PLUGIN_DIR.'/forum/parsers/sf-rawtohtml.php');

			$content = sf_Raw2Html(" ".$content);

			break;

	}



    # strip excess slashes if editing for code segments

    if ($action == 'edit' && $sfglobals['editor']['sfeditor'] == RICHTEXT)

    {

        $content = stripslashes($content);

    }



	# Now perform the bbCode which will preserve above changes

	include_once (SF_PLUGIN_DIR.'/forum/parsers/sf-bbtohtml.php');

	$content = addslashes(sf_BBCode2Html(" ".stripslashes($content), false));



	# Shouldn't need any of these but there just in case...

	$content = str_replace('<code>', '<div class="sfcode">', $content);

	$content = str_replace('</code>', '</div>', $content);



	$content = str_replace('&lt;code&gt;', '<div class="sfcode">', $content);

	$content = str_replace('&lt;/code&gt;', '</div>', $content);



	return $content;

}



# ------------------------------------------------------------------

# sf_filter_save_codetags2()

#

# May be post edit save - so remove br's

#	$content:		Unfiltered post content

#	$editor:		Which editor

#	$action:		'new' or 'edit'

# ------------------------------------------------------------------

function sf_filter_save_codetags2($content, $editor, $action)

{

	# check if syntax highlighted - if so not needed

	$sfsyntax = sf_get_option('sfsyntax');

    if ($sfsyntax['sfsyntaxforum'] == true && strpos($content, 'brush-'))

	{

		return $content;

	}



	# ONLY used for a TintMCE RichText Save 'Edit'



	if($editor == RICHTEXT && $action == 'edit')

    {

		# recheck extra line breaks and p tags - might have come from an edit

		$content = preg_replace_callback('/\<div class=\"sfcode\"\>(.*?)\<\/div\>/ms', "sf_codetag_callback", stripslashes($content));

	}



	return $content;

}



function sf_codetag_callback($s)

{

	$content = str_replace("<br />", "", $s[1]);

	$content = str_replace("\n", "", $content);

	$content = '<div class="sfcode">'.$content.'</div>';



	return $content;

}



# ------------------------------------------------------------------

# sf_filter_save_kses()

#

# Run it through kses - needs to be unescaped first

#	$content:		Unfiltered post content

# ------------------------------------------------------------------

function sf_filter_save_kses($content)

{

	global $allowedforumtags, $allowedforumprotocols;



	if(!isset($allowedforumtags))

	{

		sf_kses_array();

		$allowedforumtags = apply_filters('sf_custom_kses', $allowedforumtags);

	}



	$content = wp_kses(stripslashes($content), $allowedforumtags, $allowedforumprotocols);



	return $content;

}



# ------------------------------------------------------------------

# sf_filter_save_linebreaks()

#

# Swap tinymce constructs with br's

#	$content:		Unfiltered post content

# ------------------------------------------------------------------

function sf_filter_save_linebreaks($content)

{

	$gap ='<p>'.chr(194).chr(160).'</p>'.chr(13).chr(10);

	$end ='<p>'.chr(194).chr(160).'</p>';



	# trim unwanted empty space

	$content = trim($content);



	while(substr($content, 0, 11) == $gap)

	{

		$content = substr_replace($content, '', 0, 11);

	}



	while(substr($content, (strlen($content)-9), 9) == $end)

	{

		$content = substr_replace($content, '', (strlen($content)-9), 9);

	}



	while(substr($content, (strlen($content)-11), 11) == $gap)

	{

		$content = substr_replace($content, '', (strlen($content)-11), 11);

	}



	# On savibng edit a 'br' may have a trailng line break which

	# will display like a paragraph break

	$content = str_replace("<br />".chr(13).chr(10), "\n", $content);



	# change br's to linebreaks

	$content = str_replace("<br />", "\n", $content);



	# change tiny blank line to a newline

	$content = str_replace($gap.$gap, $gap, $content);



	# same for blank line with p tags

	$content = str_replace("<p></p>", "\n\n", $content);

	$content = str_replace("<p> </p>", "\n\n", $content);



	$content = str_replace("<p>", "", $content);

	$content = str_replace("</p>", chr(13).chr(10), $content);



	return $content;

}



# ------------------------------------------------------------------

# sf_filter_save_pre()

#

# Remove html 'pre' and '/pre' tags

#	$content:		Unfiltered post content

# ------------------------------------------------------------------

function sf_filter_save_pre($content)

{

	# remove pre tags

	$content = str_replace("<pre>", "", $content);

	$content = str_replace("</pre>", "", $content);



	$content = str_replace('&lt;pre&gt;', '', $content);

	$content = str_replace('&lt;/pre&gt;', '', $content);



	return $content;

}



# ------------------------------------------------------------------

# sf_filter_save_quotes()

#

# Turn encoded single quote back

#	$content:		Unfiltered post content

# ------------------------------------------------------------------

function sf_filter_save_quotes($content)

{

	$content = str_replace("&#39;", "'", $content);

	# Replace those odd 0003 chars we have seen here and there

	$content = str_replace(chr(003), "'", $content);



	return $content;

}



# ------------------------------------------------------------------

# sf_filter_save_balancetags()

#

# Tried to balance html tags

#	$content:		Unfiltered post content

# ------------------------------------------------------------------

function sf_filter_save_balancetags($content)

{

	$content = balanceTags($content, true);



	return $content;

}



# ------------------------------------------------------------------

# sf_filter_save_nofollow()

#

# Adds nofollow to links at save post time

#	$content:		Unfiltered post content

# ------------------------------------------------------------------



function sf_filter_save_nofollow($content)

{

	$content = preg_replace_callback('|<a (.+?)>|i', 'sf_nofollow_callback', $content);

	return $content;

}



function sf_nofollow_callback($matches)

{

	$text = $matches[1];

	$text = str_replace(array(' rel="nofollow"', " rel='nofollow'", 'rel="nofollow"', "rel='nofollow'"), '', $text);

	return '<a '.$text.' rel="nofollow">';

}



# ------------------------------------------------------------------

# sf_filter_save_target()

#

# Forces target _blank to links at save post time

#	$content:		Unfiltered post content

# ------------------------------------------------------------------

function sf_filter_save_target($content)

{

	$content = preg_replace_callback('|<a (.+?)>|i', 'sf_target_callback', $content);

	return $content;

}



function sf_target_callback($matches)

{

	$text = $matches[1];

	if(strpos($text, 'javascript:void(0)')) return "<a ".$text.">";

	$text = str_replace(array(' target="_blank"', " target='_blank'", 'target="_blank"', "target='_blank'"), '', $text);

	return '<a '.$text.' target="_blank">';

}



# ------------------------------------------------------------------

# sf_filter_save_links()

#

# Turns urtls in posts to clickable links with shortened text

#	$content:		Unfiltered post content

# Thanks to Peter at http://www.theblog.ca/shorten-urls for this

# ------------------------------------------------------------------

function sf_filter_save_links($content, $charcount)

{

	# make links clickable

	$content = sf_make_clickable($content);



	# pad it with a space

	$content = ' ' . $content;



	# chunk those long urls

	sf_format_links($content, $charcount);



	$content = preg_replace("#(\s)([a-z0-9\-_.]+)@([^,< \n\r]+)#i", "$1<a href=\"mailto:$2@$3\">$2@$3</a>", $content);



	# Remove our padding..

	$content = substr($content, 1);



	return($content);

}



function sf_format_links(&$content, $charcount)

{

	$links = explode('<a', $content);

	$countlinks = count($links);

	for ($i = 0; $i < $countlinks; $i++)

	{

		$link = $links[$i];

		$link = (preg_match('#(.*)(href=")#is', $link)) ? '<a' . $link : $link;

		$begin = strpos($link, '>') + 1;

		$end = strpos($link, '<', $begin);

		$length = $end - $begin;

		$urlname = substr($link, $begin, $length);



		# We chunk urls that are longer than 50 characters. Just change

		# '50' to a value that suits your taste. We are not chunking the link

		# text unless if begins with 'http://', 'ftp://', or 'www.'

		$chunked = (strlen($urlname) > $charcount && preg_match('#^(http://|ftp://|www\.)#is', $urlname)) ? substr_replace($urlname, '.....', ($charcount - 10), -10) : $urlname;

		$content = str_replace('>' . $urlname . '<', '>' . $chunked . '<', $content);

	}

}



# ------------------------------------------------------------------

# sf_filter_save_profanity()

#

# Swaps any unwanted words for alternatives in post content

#	$content:		Unfiltered post content

# ------------------------------------------------------------------

function sf_filter_save_profanity($content)

{

	$badwords = explode("\n", stripslashes(sf_get_option('sfbadwords')));

	$replacementwords = explode("\n", stripslashes(sf_get_option('sfreplacementwords')));



	# need to add in delimiter for preg replace

	foreach ($badwords as $index => $badword)

	{

        if (!empty($badword))

        {

            $badwords[$index] = '/\b'.trim($badword).'\b/i';

            $replacementwords[$index] = trim($replacementwords[$index]);

        } else {

            unset($badwords[$index]);

        }

	}



	# filter the bad words

	$content = preg_replace($badwords, $replacementwords, $content);



	return $content;

}



# ------------------------------------------------------------------

# sf_filter_save_nohtml()

#

# Remove unwanted html

#	$title:		Unfiltered title content

# ------------------------------------------------------------------

function sf_filter_save_nohtml($content)

{

	$content = wp_kses(stripslashes($content), array());

	return $content;

}



# ------------------------------------------------------------------

# sf_filter_save_brackets()

#

# Remove square brackets from titles

#	$content:		Unfiltered post content

# ------------------------------------------------------------------

function sf_filter_save_brackets($content)

{

	$content = str_replace('[', '&#091;', $content);

	$content = str_replace(']', '&#093;', $content);



	return $content;

}



# ------------------------------------------------------------------

# sf_filter_save_escape()

#

# escape content before saving

#	$content:		Unfiltered post content

# ------------------------------------------------------------------

function sf_filter_save_escape($content)

{

	$content = esc_sql($content);



	return $content;

}



# ------------------------------------------------------------------

# sf_filter_save_filename()

#

# Sanitises a filename and makes it safe

#	$filename:		Unfiltered file name

# ------------------------------------------------------------------

function sf_filter_save_filename($filename)

{

	$filename_raw = $filename;

	$special_chars = array("?", "[", "]", "/", "\\", "=", "<", ">", ":", ";", ",", "'", "\"", "&", "$", "#", "*", "(", ")", "|", "~", "`", "!", "{", "}", chr(0));

	$filename = str_replace($special_chars, '', $filename);

	$filename = preg_replace('/[\s-]+/', '-', $filename);

	$filename = trim($filename, '.-_');



	# Split the filename into a base and extension[s]

	$parts = explode('.', $filename);



	# Return if only one extension

	if ( count($parts) <= 2 )

		return $filename;



	# Process multiple extensions

	$filename = array_shift($parts);

	$extension = array_pop($parts);

	$mimes =  get_allowed_mime_types();



	# Loop over any intermediate extensions.  Munge them with a trailing underscore if they are a 2 - 5 character

	# long alpha string not in the extension whitelist.

	foreach ( (array) $parts as $part) {

		$filename .= '.' . $part;



		if ( preg_match("/^[a-zA-Z]{2,5}\d?$/", $part) ) {

			$allowed = false;

			foreach ( $mimes as $ext_preg => $mime_match ) {

				$ext_preg = '!(^' . $ext_preg . ')$!i';

				if ( preg_match( $ext_preg, $part ) ) {

					$allowed = true;

					break;

				}

			}

			if ( !$allowed )

				$filename .= '_';

		}

	}

	$filename = str_replace(' ', '_', $filename);

	$filename .= '.' . $extension;



	return $filename;

}



# ------------------------------------------------------------------

# sf_filter_save_encode()

#

# Encode atributes

#	$content:		usually a display name

# ------------------------------------------------------------------

function sf_filter_save_encode($content)

{

	$content = esc_attr($content);



	return $content;

}



# ------------------------------------------------------------------

# sf_filter_save_cleanemail()

#

# Sanitises am email address and makes it safe

#	$filename:		Unfiltered file name

# ------------------------------------------------------------------

function sf_filter_save_cleanemail($email)

{

	$email = sanitize_email($email);



	return $email;

}



# ------------------------------------------------------------------

# sf_filter_save_cleanurl()

#

# Sanitises an url for db  and makes it safe

#	$url:		Unfiltered url

# ------------------------------------------------------------------

function sf_filter_save_cleanurl($url)

{

	$url = esc_url_raw($url);



	return $url;

}



# ------------------------------------------------------------------

# sf_filter_save_spoiler() and support functions

#

# Remove spoilers from content if not allowed

#	$content:		Unfiltered post content

# ------------------------------------------------------------------

function sf_filter_save_spoiler($content)

{

    $content = preg_replace('/\[spoiler\][^>]*\[\/spoiler\]/', '' , $content);

	return $content;

}



# ------------------------------------------------------------------

# sf_filter_save_oEmbed() and support function

#

# Checks urls against the WP oEmbed class and pulls in the embed

# code if a match is found. Performed before other url checks

#	$content:		Unfiltered post content

# ------------------------------------------------------------------

function sf_filter_save_oEmbed($content)

{

	$content = preg_replace_callback('#(?<!=\')(?<!=")(http|ftp|https):\/\/[\w\-_]+(\.[\w\-_]+)+([\w\-\.,@?^=%&:/~\+\#]*[\w\-\@?^=%&amp;/~\+\#])?#i', 'sf_check_save_oEmbed', $content);

	return $content;

}



function sf_check_save_oEmbed($match)

{

	$url = wp_oembed_get($match[0]);

	if(empty($url)) $url=$match[0];

	return $url;

}



# ------------------------------------------------------------------

# sf_filter_save_images() and support functions

#

# Set the width of images if possible at save time

#	$content:		Unfiltered post content

# ------------------------------------------------------------------

function sf_filter_save_images($content)

{

	return sf_check_save_image_width($content);

}



function sf_check_save_image_width($content)

{

	$content = preg_replace_callback('/<img[^>]*>/', 'sf_check_save_width' , $content);

	return $content;

}



function sf_check_save_width($match)

{

	global $SFPATHS;



	$out = '';

	$match[0] = stripslashes($match[0]);



	preg_match('/title\s*=\s*"([^"]*)"|title\s*=\s*\'([^\']*)\'/i', $match[0], $title);

	preg_match('/alt\s*=\s*"([^"]*)"|alt\s*=\s*\'([^\']*)\'/i', $match[0], $alt);

	preg_match('/width\s*=\s*"([^"]*)"|width\s*=\s*\'([^\']*)\'/i', $match[0], $width);

	preg_match('/src\s*=\s*"([^"]*)"|src\s*=\s*\'([^\']*)\'/i', $match[0], $src);

	preg_match('/style\s*=\s*"([^"]*)"|style\s*=\s*\'([^\']*)\'/i', $match[0], $style);

	preg_match('/class\s*=\s*"([^"]*)"|class\s*=\s*\'([^\']*)\'/i', $match[0], $class);



	if(isset($width[1])) return $match[0];



	if (isset($class[1])) return $match[0];



	if ((strpos($src[1], 'plugins/emotions')) || (strpos($src[1], 'images/smilies')) || (strpos($src[1], $SFPATHS['smileys'])))

	{

		$out = str_replace('img src', 'img class="sfsmiley" src', $match[0]);

		return $out;

	}



	# figure out whether its relative path (same server) or a url

    $parsed = parse_url($src[1]);

    if (array_key_exists('scheme', $parsed))

    {

    	$srcfile = $src[1];  # url, so leave it alone

    } else {

  		$srcfile = $_SERVER['DOCUMENT_ROOT'].$src[1];  # relative path, so add DOCUMENT_ROOT to path

  	}



	if (empty($width[1]))

	{

		global $gis_error;

		$gis_error = '';

		set_error_handler('sf_gis_error');



		$size = getimagesize($srcfile);



		restore_error_handler();

		if ($gis_error == '')

		{

			if ($size[0])

			{

				$width[1] = $size[0];

			} else {

				return '['.__('Image Can Not Be Found', 'sp').']';

			}

		}

	}



	if (isset($src[1])) 	$thissrc = 		'src="'.$src[1].'" '; 		else $thissrc = '';

	if (isset($title[1])) 	$thistitle = 	'title="'.$title[1].'" '; 	else $thistitle = '';

	if (isset($alt[1])) 	$thisalt = 		'alt="'.$alt[1].'" '; 		else $thisalt = '';

	if (isset($width[1]))	$thiswidth =	'width="'.$width[1].'" ';	else $thiswidth = '';

	if (isset($style[1]))	$thisstyle =	'style="'.$style[1].'" ';	else $thisstyle = '';

	if (isset($class[1]))	$thisclass =	'class="'.$class[1].'" ';	else $thisclass = '';



	$out.= esc_sql('<img '.$thissrc.$thiswidth.$thisstyle.$thisclass.$thistitle.$thisalt.'/>');

	return $out;

}



# ===END OF SAVE FILTERS============================================



# ===START OF EDIT FILTERS==========================================

#

# CONTENT - EDIT FILTERS UMBRELLA

#

# Used:	Forum Post

#		?



function sf_filter_content_edit($content)

{

	global $sfglobals;



	# 1: Convert smiley codes to images

	$content = sf_filter_display_smileys($content);



	# 2: Convert Chars

	$content = sf_filter_display_chars($content);



	# 3: Format the paragraphs (p and br onlt Richtext)

	if($sfglobals['editor']['sfeditor'] != RICHTEXT) {

		$content = sf_filter_save_linebreaks($content);

	} else {

		$content = sf_filter_display_paragraphs($content);

	}



	# 4: Parse post into appropriate editor format

	$content = sf_filter_edit_parser($content, $sfglobals['editor']['sfeditor']);



	# 5: Turn off shortcode processing to keep from messing up their display

	remove_all_shortcodes();



	return $content;

}



# ==================================================================

#

# TEXT - EDIT FILTERS UMBRELLA

#

# Used:	Text Areas

#		?



function sf_filter_text_edit($content)

{

	global $sfglobals;



	# 1: Convert Chars

	$content = sf_filter_display_chars($content);



	# 2: Format the paragraphs (p and br)

	$content = sf_filter_display_paragraphs($content);

	$content = sf_filter_save_linebreaks($content);



	# 3: Parse post into appropriate editor format

	$content = sf_filter_edit_parser($content, PLAIN);



	# 4: remove escape slashes

	$content = sf_filter_display_stripslashes($content);



	# finally htnl encode it for edit display

	$content = htmlentities($content, ENT_COMPAT, SFCHARSET);



	return $content;

}



function sf_filter_edit_parser($content, $editor)

{



	if($editor == BBCODE) {

		# load the bbcode to html parser

		include_once (SF_PLUGIN_DIR.'/forum/parsers/sf-htmltobb.php');

		$content = sf_Html2BBCode($content);

	} elseif($editor == HTML || $editor == PLAIN) {

		# load the raw to html parser

		include_once (SF_PLUGIN_DIR.'/forum/parsers/sf-htmltoraw.php');

		$content = sf_Html2Raw($content);

	}



	return $content;

}





# ===END OF EDIT FILTERS============================================



# ===START OF DISPLAY FILTERS=======================================

#

# CONTENT - DISPLAY FILTERS UMBRELLA

#

# Used:	Forum Post

#		Private Messages

#		Post Report

#		Template Tag

#		?



function sf_filter_content_display($content)

{

    global $current_user;



	# 1: Backwards compatible make links clickable

	$content = sf_filter_display_links($content);



	# 2: Convert smiley codes to images

	$content = sf_filter_display_smileys($content);



	# 3: Convert Chars

	$content = sf_filter_display_chars($content);



	# 4: Format the paragraphs

	$content = sf_filter_display_paragraphs($content);



	# 5: Format the code select Divs.

	$content = sf_filter_display_codeselect($content);



	# 6: Format image tags

	$content = sf_filter_display_images($content);



    # 7: strip shortcodes

    if (sf_get_option('sffiltershortcodes'))

    {

    	$content = sf_filter_display_shortcodes($content);

    }



    # 8: hide links

    if (!$current_user->sfviewlinks)

    {

        $content = sf_filter_display_hidelinks($content);

    }



	# 9: apply any users custom filters

	$content = apply_filters('sf_show_post_content', $content);



	return $content;

}



# ==================================================================

#

# TEXT - DISPLAY FILTERS UMBRELLA

#

# Used:	Profile Description

#		Blog Linking Link Text

#		Group Message

#		Forum Message

#		Email Messages

#		Signature Text

#		Announce Tag Heading/Text

#		Sneak Peak Message

#		Admin View Message

#		Custom Editor Messages

#		Registration/Privacy Messages

#		Custom Profile Message

#		Admins Off-Line Message

#		?



function sf_filter_text_display($content)

{

	# 1: Convert Chars

	$content = sf_filter_display_chars($content);



	# 2: Format the paragraphs

	$content = sf_filter_display_paragraphs($content);



	# 3: remove escape slashes

	$content = sf_filter_display_stripslashes($content);



	return $content;

}



# ==================================================================

#

# TITLE - DISPLAY FILTERS UMBRELLA

#

# Used:	Group Title/Description *

#		Forum Title/Description *

#		Topic Title *

#		Message Title *

#		Blog Linking Titles *

#		Email Subject *

#		Custom Meta Description/Keywords *

#		Topic Status Name/List *

#		Custom Icon Title *

#		UserGroup Name/Description *

#		Permission Name/Description *

#		Profile Form Labels *

#		?



function sf_filter_title_display($content)

{

	# 1: Convert Chars

	$content = sf_filter_display_chars($content);



	# 2: remove escape slashes

	$content = sf_filter_display_stripslashes($content);



	return $content;

}



# ==================================================================

#

# USER NAMES - DISPLAY FILTERS UMBRELLA

#

# Used:	Display Name

#		Guest Name

#		?



function sf_filter_name_display($content)

{

	# 1: Convert Chars

	$content = sf_filter_display_chars($content);



	# 2: remove escape slashes

	$content = sf_filter_display_stripslashes($content);



	return $content;

}



# ==================================================================

#

# EMAIL ADDRESS - DISPLAY FILTERS UMBRELLA

#

# Used:	Guest posts

#		User profile

#		?



function sf_filter_email_display($email)

{

	# 1: Convert Chars

	$email = sf_filter_display_chars($email);



	# 2: remove escape slashes

	$email = sf_filter_display_stripslashes($email);



	return $email;

}



# ==================================================================

#

# URL - DISPLAY FILTERS UMBRELLA

#

# Used: All URLs

#		?



function sf_filter_url_display($url)

{

	# 1: Clean url for display

	$url = sf_filter_display_cleanurl($url);



	return $url;

}



# ===START OF DISPLAY FILTERS=======================================



# ------------------------------------------------------------------

# sf_filter_display_links()

#

# Makes unanchored links clickable. This is here for backward

# compatibility with older storage of posts that incuded p tags

#

#	$content:		Unfiltered post content

# ------------------------------------------------------------------

function sf_filter_display_links($content)

{

	# dont make clickable in pre or code tags

	$content = sf_make_clickable($content);

	return $content;

}



# ------------------------------------------------------------------

# sf_convert_custom_smileys()

#

# Swaps codes for smileys if using custom images

#	$content:		Unfiltered post content

# ------------------------------------------------------------------

function sf_filter_display_smileys($content)

{

	global $sfglobals;



	# Custom

	if($sfglobals['smileyoptions']['sfsmallow'] && $sfglobals['smileyoptions']['sfsmtype']==1)

	{

		if($sfglobals['smileys'])

		{

			foreach ($sfglobals['smileys'] as $sname => $sinfo)

			{

				$content = str_replace($sinfo[1], '<img src="'.SFSMILEYS.$sinfo[0].'" title="'.$sname.'" alt="'.$sname.'" />', $content);

			}

		}

	}



	# WP versions

	if($sfglobals['smileyoptions']['sfsmallow'] && $sfglobals['smileyoptions']['sfsmtype']==3)

	{

		$content = convert_smilies($content);

		$content = str_replace("'", '"', $content);

	}



	return $content;

}



# ------------------------------------------------------------------

# sf_filter_display_chars()

#

# Converts specific chars to entities

#	$content:		Unfiltered post content

# ------------------------------------------------------------------

function sf_filter_display_chars($content)

{

	$content = convert_chars($content);



	# This simply replaces those odd 0003 chars we have seen

	$content = str_replace(chr(003), "'", $content);

	return $content;

}



# ------------------------------------------------------------------

# sf_filter_display_paragraphs()

#

# Breaks up into paragraphs - excluding syntax highlighted blocks

#	$content:		Unfiltered post content

# ------------------------------------------------------------------

function sf_filter_display_paragraphs($content)

{

	# check if syntax hoighlighted

	$sfsyntax = sf_get_option('sfsyntax');

    if($sfsyntax['sfsyntaxforum'] == true && strpos($content, 'brush-'))

	{

		$base = explode('<div class="sfcode">', $content);

		if($base)

		{

			$comp = array();

			foreach($base as $part)

			{

				if(substr(trim($part), 0, 18) == '<pre class="brush-')

				{

					$subparts = explode('</pre>', $part);

					$comp[] = '<div class="sfcode">' . $subparts[0] .'</pre></div>';

					$pos = strpos($subparts[1], '</div>');

					$subparts[1] = substr($subparts[1], ($pos+6));

					$comp[] = wpautop($subparts[1]);

					unset($subparts);

				} else {

					$comp[] = wpautop($part);

				}

			}

			$content = implode($comp);

		}

	} else {

		$content = wpautop($content);

	}



	$content = shortcode_unautop($content);



	return $content;

}



# ------------------------------------------------------------------

# sf_filter_display_codeselect()

#

# Adds the 'Select Code' button to code blocks

# ------------------------------------------------------------------

function sf_filter_display_codeselect($content)

{

	# add the 'select code' button

	$pos = strpos($content, '<div class="sfcode">');

	if($pos === false) return $content;



	# check if syntax hoighlighted

	$sfsyntax = sf_get_option('sfsyntax');

    if($sfsyntax['sfsyntaxforum'] == true && strpos($content, 'brush-'))

    {

    	return $content;

	}



	while($pos !== false)

	{

		$id = rand(100, 10000);

		$selector = '#sfcode'.$id;

		$replace = '<p><input type="button" class="sfcodeselect" name="sfselectit'.$id.'" value="'.__("Select Code", "sforum").'" onclick="sfjSelectCode(\'sfcode'.$id.'\');" /></p><div class="sfcode" id="sfcode'.$id.'">';

		$content = substr_replace ($content, $replace, $pos, 20);

		$pos = $pos + 140;

		$pos = strpos($content, '<div class="sfcode">', $pos);

	}

	return $content;

}



# ------------------------------------------------------------------

# sf_filter_display_images() and support functions

#

# Change large images to small thumbnails and embed

#	$content:		Unfiltered post content

# ------------------------------------------------------------------

function sf_filter_display_images($content)

{

	return sf_swap_IMGs($content);

}



function sf_swap_IMGs($content)

{

	$content = preg_replace_callback('/<img[^>]*>/', 'sf_check_width' , $content);

	return $content;

}



function sf_check_width($match)

{

	global $SFPATHS;



    $out = '';



	$sfimage = array();

	$sfimage = sf_get_option('sfimage');



	# is any of this needed?

	if ($sfimage['enlarge']==false && $sfimage['process']==false) return $match[0];



	$thumb = $sfimage['thumbsize'];

	if ((empty($thumb)) || ($thumb < 100)) $thumb=100;



	preg_match('/title\s*=\s*"([^"]*)"|title\s*=\s*\'([^\']*)\'/i', $match[0], $title);

	preg_match('/alt\s*=\s*"([^"]*)"|alt\s*=\s*\'([^\']*)\'/i', $match[0], $alt);

	preg_match('/width\s*=\s*"([^"]*)"|width\s*=\s*\'([^\']*)\'/i', $match[0], $width);

	preg_match('/src\s*=\s*"([^"]*)"|src\s*=\s*\'([^\']*)\'/i', $match[0], $src);

	preg_match('/style\s*=\s*"([^"]*)"|style\s*=\s*\'([^\']*)\'/i', $match[0], $style);

	preg_match('/class\s*=\s*"([^"]*)"|class\s*=\s*\'([^\']*)\'/i', $match[0], $class);



	if (isset($class[1])) return $match[0];



	if ((strpos($src[1], 'plugins/emotions')) || (strpos($src[1], 'images/smilies')) || (strpos($src[1], $SFPATHS['smileys'])))

	{

		$out = str_replace('img src', 'img class="sfsmiley" src', $match[0]);

		return $out;

	}



	# see if we can determoine if the image still exists before going further. So is it relative?

	if (empty($width[1]) && substr($src[1], 0, 7) == 'http://')

	{

		if(function_exists('curl_init'))

		{

			$fcheck = curl_init();

			curl_setopt($fcheck, CURLOPT_URL,$src[1]);

			curl_setopt($fcheck, CURLOPT_NOBODY, 1);

			curl_setopt($fcheck, CURLOPT_FAILONERROR, 1);

			curl_setopt($fcheck, CURLOPT_RETURNTRANSFER, 1);

			if(curl_exec($fcheck)===false)

			{

				return '['.__('Image Can Not Be Found', 'sforum').']';

			}

		}

	}



	if (empty($style[1]))

	{

		if ($sfimage['style'] == 'left' || $sfimage['style']=='right')

		{

			$style[1] = 'float: '.$sfimage['style'];

		} else {

			$style[1] = 'vertical-align: '.$sfimage['style'];

		}

	}



	$iclass='';

	$mclass="sfmouseother";



	switch ($style[1])

	{

		case 'float: left':

			$iclass="sfimageleft";

			$mclass="sfmouseleft";

			break;

		case 'float: right':

			$iclass="sfimageright";

			$mclass="sfmouseright";

			break;

		case 'vertical-align: baseline':

			$iclass="sfimagebaseline";

			break;

		case 'vertical-align: top':

			$iclass="sfimagetop";

			break;

		case 'vertical-align: middle':

			$iclass="sfimagemiddle";

			break;

		case 'vertical-align: bottom':

			$iclass="sfimagebottom";

			break;

		case 'vertical-align: text-top':

			$iclass="sfimagetexttop";

			break;

		case 'vertical-align: text-bottom':

			$iclass="sfimagetextbottom";

			break;

	}



	# figure out whether its relative path (same server) or a url

    $parsed = parse_url($src[1]);

    if (array_key_exists('scheme', $parsed))

    {

    	$srcfile = $src[1];  # url, so leave it alone

    } else {

  		$srcfile = $_SERVER['DOCUMENT_ROOT'].$src[1];  # relative path, so add DOCUMENT_ROOT to path

  	}

/*

	global $gis_error;

	$gis_error = '';

	set_error_handler('sf_gis_error');



	if (empty($width[1]))

	{

		$size = getimagesize($srcfile);

		restore_error_handler();

		if ($gis_error == '')

		{

			if ($size[0])

			{

				$width[1] = $size[0];

			} else {

				return '['.__('Image Can Not Be Found', 'sforum').']';

			}

		}

	}

*/

	if (isset($src[1])) $thissrc = 'src="'.$src[1].'" '; else $thissrc = '';

	if (isset($title[1])) $thistitle = 'title="'.$title[1].'" '; else $thistitle = '';

	if (isset($alt[1])) $thisalt = 'alt="'.$alt[1].'" '; else $thisalt = '';



	if ((int) $width[1] > (int)$thumb) { # is width > thumb size

		$thiswidth = 'width="'.$thumb.'" ';

		$anchor = true;

	} else if (!empty($width)) { # width is smaller than thumb, so use the width

		$thiswidth = 'width="'.$width[1].'" ';

		$mclass = '';

		$anchor = false;

	} else { # couldnt determine width, so dont output it

//		$thiswidth = '';

//		$mclass = '';

		$thiswidth = 'width="'.$thumb.'" ';

//		$anchor = false;

		$anchor = true;

	}



	if (!empty($iclass))

	{

		$thisformat = 'class="'.$iclass.'" ';

	} else {

		$thisformat = 'style="'.$style[1].'" ';

	}



	if ($anchor)

	{

		# Use highslide popup

		if($sfimage['enlarge'] == true)

		{

			$out = '<a onclick="return hs.expand(this)" class="highslide" href="'.$src[1].'" '.$thistitle.'>';

		} else {

			$out = '<a href="'.$src[1].'" '.$thistitle.'>';

		}

	}



	$out.= '<img '.$thissrc.$thiswidth.$thisformat.$thistitle.$thisalt.'/>';

	if ($gis_error) $out.= '<br /><span class="sfimgerror small">['.__("Image Error", "sforum").': '.$gis_error.']</span>';



	if ($mclass)

	{

		$out.= '<img src="'.SFRESOURCES.'mouse.png" class="'.$iclass.' '.$mclass.'" alt="" />';

	}



	if ($anchor)

	{

		$out.= '</a>';

	}



	return $out;

}



# ------------------------------------------------------------------

# sf_filter_display_stripslashes()

#

# Remov escaped slashes

#	$content:		Unfiltered post content

# ------------------------------------------------------------------

function sf_filter_display_stripslashes($content)

{

	$content = stripslashes($content);



	return $content;

}



# ------------------------------------------------------------------

# sf_filter_display_cleanurl()

#

# Cleans up url for display

#	$url:		Unfiltered url

# ------------------------------------------------------------------

function sf_filter_display_cleanurl($url)

{

	$url = esc_url($url);



	return $url;

}



# ------------------------------------------------------------------

# sf_filter_display_shortcodes()

#

# Removes non allowed shortcodes

# ------------------------------------------------------------------

function sf_filter_display_shortcodes($content)

{

	global $shortcode_tags;



	# Backup current registered shortcodes

	$orig_shortcode_tags = $shortcode_tags;



	$allowed_shortcodes = explode("\n", stripslashes(sf_get_option('sfshortcodes')));

    if ($allowed_shortcodes)

    {

        foreach ($allowed_shortcodes as $tag)

        {

            If (array_key_exists($tag, $orig_shortcode_tags)) unset($shortcode_tags[$tag]);

        }

    }



    # be sure to allow our spoilers

    unset($shortcode_tags['spoiler']);



    # strip all but allowed shortcodes

    $content = strip_shortcodes($content);



	# Restore registered shortcodes

	$shortcode_tags = $orig_shortcode_tags;



	return $content;

}



# ------------------------------------------------------------------

# sf_filter_display_hidelinks()

#

# Option: Removes links from post content

# ------------------------------------------------------------------

function sf_filter_display_hidelinks($content)

{

	$sffilters = sf_get_option('sffilters');

    $string = sf_filter_save_nohtml($sffilters['sfnolinksmsg']);

    $content = preg_replace("#(<a.*>).*(</a>)#", $string, $content);



	return $content;

}





# ==================================================================

#

# SPECIAL FILTERS - ONE OFFS

#

# The following filters are specific to one task - usually display



# ------------------------------------------------------------------

# sf_filter_signature_display() and support function

#

# Filters the display of signature images

#	$content:		Unfiltered signature content

# ------------------------------------------------------------------

function sf_filter_signature_display($content)

{

	$sfsigimagesize = sf_get_option('sfsigimagesize');

	if ($sfsigimagesize['sfsigwidth'] > 0 || $sfsigimagesize['sfsigheight'] > 0)

    {

        $content = preg_replace_callback('/<img[^>]*>/', 'sf_check_sig' , $content);

    }

	return $content;

}



function sf_check_sig($match)

{

	$sfsigimagesize = sf_get_option('sfsigimagesize');



    # get the elements of the img tags

	preg_match('/title\s*=\s*"([^"]*)"|title\s*=\s*\'([^\']*)\'/i', $match[0], $title);

	preg_match('/width\s*=\s*"([^"]*)"|width\s*=\s*\'([^\']*)\'/i', $match[0], $width);

	preg_match('/height\s*=\s*"([^"]*)"|height\s*=\s*\'([^\']*)\'/i', $match[0], $height);

	preg_match('/src\s*=\s*"([^"]*)"|src\s*=\s*\'([^\']*)\'/i', $match[0], $src);

	preg_match('/style\s*=\s*"([^"]*)"|style\s*=\s*\'([^\']*)\'/i', $match[0], $style);

	preg_match('/alt\s*=\s*"([^"]*)"|alt\s*=\s*\'([^\']*)\'/i', $match[0], $alt);



    # check for possible single quote match or double quote

    if (empty($title[1])  && !empty($title[2]))  $title[1]  = $title[2] ;

    if (empty($width[1])  && !empty($width[2]))  $width[1]  = $width[2] ;

    if (empty($height[1]) && !empty($height[2])) $height[1] = $height[2] ;

    if (empty($src[1])    && !empty($src[2]))    $src[1]    = $src[2] ;

    if (empty($style[1])  && !empty($style[2]))  $style[1]  = $style[2] ;

    if (empty($alt[1])    && !empty($alt[2]))    $alt[1]    = $alt[2] ;



    # if user defined heights are valid, just return

	if ((!isset($width[1]) || $width[1] <= $sfsigimagesize['sfsigwidth']) &&

        (!isset($height[1]) || $height[1] <= $sfsigimagesize['sfsigheight']))

    {

        return $match[0];

    }



    # insepct the image itself

	global $gis_error;

	$gis_error = '';

	set_error_handler('sf_gis_error');



    $display_width = '';

    $display_height = '';

	$size = getimagesize($src[1]);

	restore_error_handler();

	if ($gis_error == '')

	{

        # Did image exist?

		if ($size[0] && $size[1])

		{

            # check width

        	if (isset($width[1]) && ($width[1] <= $sfsigimagesize['sfsigwidth'] || $sfsigimagesize['sfsigwidth'] == 0)) # width specified and less than max allowed

            {

                $display_width = ' width="'.$width[1].'"';

            } else if ($sfsigimagesize['sfsigwidth'] > 0 && $size[0] > $sfsigimagesize['sfsigwidth']) {

                $display_width = ' width="'.$sfsigimagesize['sfsigwidth'].'"';

            }



            # check the height

        	if (isset($height[1]) && ($height[1] <= $sfsigimagesize['sfsigheight'] || $sfsigimagesize['sfsigheight'] == 0)) # height specified and less than max allowed

            {

                $display_height = ' height="'.$height[1].'"';

            } else if ($sfsigimagesize['sfsigheight'] > 0 && $size[1] > $sfsigimagesize['sfsigheight']) {

                $display_height = ' height="'.$sfsigimagesize['sfsigheight'].'"';

            }

		} else {

            # image not found, strip tags

			return '';

		}

	} else {

        # problem checking sizes, so just limit

        $display_width = ' width="'.$sfsigimagesize['sfsigwidth'].'"';

        $display_height = ' height="'.$sfsigimagesize['sfsigheight'].'"';

	}



	#

	return '<img src="'.$src[1].'"'.$display_width.$display_height.' style="'.$style[1].'" title="'.$title[1].'" alt="'.$alt[1].'" />';

}



# ------------------------------------------------------------------

# sf_filter_tooltip_display()

#

# Filters the display of topic linked post 'tooltips'

#	$content:		Unfiltered post content

#	$status:		False if post awaiting moderation

# ------------------------------------------------------------------

function sf_filter_tooltip_display($content, $status)

{

	global $current_user;



	# can the current user view this post?

	if($current_user->moderator == false && $status == 1)

	{

		$content = __("Post Awaiting Approval by Forum Administrator", "sforum");

	} else {

		$content = addslashes($content);

		$content = sf_filter_save_nohtml($content);

        # remove shortcodes to prevent messing up tooltip

        $content = strip_shortcodes($content);

		if(strlen($content) > 320)

		{

			$pos = strpos($content, ' ', 300);

			$content = substr($content, 0, $pos).'...';

		}

		$content = htmlspecialchars($content, ENT_QUOTES, 'UTF-8');

		$content = str_replace('&amp;', '&', $content);



		# link urls to prevent oembed problems

		$content = esc_attr(sf_make_clickable($content));

	}



	return $content;

}



# ------------------------------------------------------------------

# sf_filter_rss_display()

#

# Filters the display of post content in rss feed

#	$content:		Unfiltered post content

# ------------------------------------------------------------------

# Used:	RSS Feeds



function sf_filter_rss_display($content)

{

    global $current_user;



	# 1: Backwards compatible make links clickable

	$content = sf_filter_display_links($content);



	# 2: Convert smiley codes to images

	$content = sf_filter_display_smileys($content);



	# 3: Convert Chars

	$content = sf_filter_display_chars($content);



	# 4: Format the paragraphs

	$content = sf_filter_display_paragraphs($content);



    # 5: strip shortcodes

    if (sf_get_option('sffiltershortcodes'))

    {

    	$content = sf_filter_display_shortcodes($content);

    }



    # 6: hide links

    if (!$current_user->sfviewlinks)

    {

        $content = sf_filter_display_hidelinks($content);

    }



	# 7: apply any users custom filters

	$content = apply_filters('sf_show_post_content', $content);



	return $content;

}



# ------------------------------------------------------------------

# sf_filter_table_prefix()

#

# Filters the prefix from table names

#	$content:		Unfiltered content

# ------------------------------------------------------------------

# Used as a filter in seach values - aids killing SQL injections

function sf_filter_table_prefix($content)

{

$long = array(

	SF_PREFIX.'commentmeta', SF_PREFIX.'comments', SF_PREFIX.'links', SF_PREFIX.'options', SF…