private function format_message($msg)
{
// censor bad words
require_once QA_INCLUDE_DIR . 'qa-util-string.php';
$blockwordspreg = qa_get_block_words_preg();
$msg = qa_block_words_replace($msg, $blockwordspreg);
$msg = qa_html($msg);
return qa_html_convert_urls($msg);
}
function get_html($content, $format, $options)
{
if ($format == 'html') {
$html = qa_sanitize_html($content, @$options['linksnewwindow'], false);
// sanitize again for display, for extra safety, and due to new window setting
if (isset($options['blockwordspreg'])) {
// filtering out blocked words inline within HTML is pretty complex, e.g. p<B>oo</B>p must be caught
require_once QA_INCLUDE_DIR . 'qa-util-string.php';
$html = preg_replace('/<\\s*(' . $this->htmllineseparators . ')[^A-Za-z0-9]/i', "\n\\0", $html);
// tags to single new line
$html = preg_replace('/<\\s*(' . $this->htmlparagraphseparators . ')[^A-Za-z0-9]/i', "\n\n\\0", $html);
// tags to double new line
preg_match_all('/<[^>]*>/', $html, $pregmatches, PREG_OFFSET_CAPTURE);
// find tag positions and lengths
$tagmatches = $pregmatches[0];
$text = preg_replace('/<[^>]*>/', '', $html);
// effectively strip_tags() but use same regexp as above to ensure consistency
$blockmatches = qa_block_words_match_all($text, $options['blockwordspreg']);
// search for blocked words within text
$nexttagmatch = array_shift($tagmatches);
$texttohtml = 0;
$htmlshift = 0;
foreach ($blockmatches as $textoffset => $textlength) {
while (isset($nexttagmatch) && $nexttagmatch[1] <= $textoffset + $texttohtml) {
// keep text and html in sync
$texttohtml += strlen($nexttagmatch[0]);
$nexttagmatch = array_shift($tagmatches);
}
while (1) {
$replacepart = $textlength;
if (isset($nexttagmatch)) {
$replacepart = min($replacepart, $nexttagmatch[1] - ($textoffset + $texttohtml));
}
// stop replacing early if we hit an HTML tag
$replacelength = qa_strlen(substr($text, $textoffset, $replacepart));
// to work with multi-byte characters
$html = substr_replace($html, str_repeat('*', $replacelength), $textoffset + $texttohtml + $htmlshift, $replacepart);
$htmlshift += $replacelength - $replacepart;
// HTML might have moved around if we replaced multi-byte characters
if ($replacepart >= $textlength) {
break;
}
// we have replaced everything expected, otherwise more left (due to hitting an HTML tag)
$textlength -= $replacepart;
$textoffset += $replacepart;
$texttohtml += strlen($nexttagmatch[0]);
$nexttagmatch = array_shift($tagmatches);
}
}
}
if (@$options['showurllinks']) {
// we need to ensure here that we don't put new links inside existing ones
require_once QA_INCLUDE_DIR . 'qa-util-string.php';
$htmlunlinkeds = array_reverse(preg_split('|<[Aa]\\s+[^>]+>.*</[Aa]\\s*>|', $html, -1, PREG_SPLIT_OFFSET_CAPTURE));
// start from end so we substitute correctly
foreach ($htmlunlinkeds as $htmlunlinked) {
// and that we don't detect links inside HTML, e.g. <IMG SRC="http://...">
$thishtmluntaggeds = array_reverse(preg_split('/<[^>]*>/', $htmlunlinked[0], -1, PREG_SPLIT_OFFSET_CAPTURE));
// again, start from end
foreach ($thishtmluntaggeds as $thishtmluntagged) {
$innerhtml = $thishtmluntagged[0];
if (is_numeric(strpos($innerhtml, '://'))) {
// quick test first
$newhtml = qa_html_convert_urls($innerhtml, qa_opt('links_in_new_window'));
$html = substr_replace($html, $newhtml, $htmlunlinked[1] + $thishtmluntagged[1], strlen($innerhtml));
}
}
}
}
} elseif ($format == '') {
if (isset($options['blockwordspreg'])) {
require_once QA_INCLUDE_DIR . 'qa-util-string.php';
$content = qa_block_words_replace($content, $options['blockwordspreg']);
}
$html = qa_html($content, true);
if (@$options['showurllinks']) {
require_once QA_INCLUDE_DIR . 'qa-app-format.php';
$html = qa_html_convert_urls($html, qa_opt('links_in_new_window'));
}
} else {
$html = '[no viewer found for format: ' . qa_html($format) . ']';
}
// for unknown formats
return $html;
}
function get_html($content, $format, $options)
{
if ($format == 'html') {
$html = qa_sanitize_html($content, @$options['linksnewwindow']);
// sanitize again for display, for extra safety, and due to new window setting
if (isset($options['blockwordspreg'])) {
// filtering out blocked words inline within HTML is pretty complex, e.g. p<B>oo</B>p must be caught
require_once QA_INCLUDE_DIR . 'qa-util-string.php';
$html = preg_replace('/<\\s*(' . $this->htmllineseparators . ')[^A-Za-z0-9]/i', "\n\\0", $html);
// tags to single new line
$html = preg_replace('/<\\s*(' . $this->htmlparagraphseparators . ')[^A-Za-z0-9]/i', "\n\n\\0", $html);
// tags to double new line
preg_match_all('/<[^>]*>/', $html, $pregmatches, PREG_OFFSET_CAPTURE);
// find tag positions and lengths
$tagmatches = $pregmatches[0];
$text = preg_replace('/<[^>]*>/', '', $html);
// effectively strip_tags() but use same regexp as above to ensure consistency
$blockmatches = qa_block_words_match_all($text, $options['blockwordspreg']);
// search for blocked words within text
$nexttagmatch = array_shift($tagmatches);
$texttohtml = 0;
$htmlshift = 0;
foreach ($blockmatches as $textoffset => $textlength) {
while (isset($nexttagmatch) && $nexttagmatch[1] <= $textoffset + $texttohtml) {
// keep text and html in sync
$texttohtml += strlen($nexttagmatch[0]);
$nexttagmatch = array_shift($tagmatches);
}
while (1) {
$replacepart = $textlength;
if (isset($nexttagmatch)) {
$replacepart = min($replacepart, $nexttagmatch[1] - ($textoffset + $texttohtml));
}
// stop replacing early if we hit an HTML tag
$replacelength = qa_strlen(substr($text, $textoffset, $replacepart));
// to work with multi-byte characters
$html = substr_replace($html, str_repeat('*', $replacelength), $textoffset + $texttohtml + $htmlshift, $replacepart);
$htmlshift += $replacelength - $replacepart;
// HTML might have moved around if we replaced multi-byte characters
if ($replacepart >= $textlength) {
break;
}
// we have replaced everything expected, otherwise more left (due to hitting an HTML tag)
$textlength -= $replacepart;
$textoffset += $replacepart;
$texttohtml += strlen($nexttagmatch[0]);
$nexttagmatch = array_shift($tagmatches);
}
}
}
} else {
if (isset($options['blockwordspreg'])) {
require_once QA_INCLUDE_DIR . 'qa-util-string.php';
$content = qa_block_words_replace($content, $options['blockwordspreg']);
}
$html = qa_html($content, true);
if (@$options['showurllinks']) {
require_once QA_INCLUDE_DIR . 'qa-app-format.php';
$html = qa_html_convert_urls($html, qa_opt('links_in_new_window'));
}
}
return $html;
}
