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; }