diff options
Diffstat (limited to 'engine/lib/output.php')
| -rw-r--r-- | engine/lib/output.php | 141 |
1 files changed, 84 insertions, 57 deletions
diff --git a/engine/lib/output.php b/engine/lib/output.php index 352de863b..de4f911fb 100644 --- a/engine/lib/output.php +++ b/engine/lib/output.php @@ -12,29 +12,34 @@ * * @param string $text The input string * - * @return string The output stirng with formatted links - **/ + * @return string The output string with formatted links + */ function parse_urls($text) { + + // URI specification: http://www.ietf.org/rfc/rfc3986.txt + // This varies from the specification in the following ways: + // * Supports non-ascii characters + // * Does not allow parentheses and single quotes + // * Cuts off commas, exclamation points, and periods off as last character + // @todo this causes problems with <attr = "val"> - // must be ing <attr="val"> format (no space). + // must be in <attr="val"> format (no space). // By default htmlawed rewrites tags to this format. // if PHP supported conditional negative lookbehinds we could use this: // $r = preg_replace_callback('/(?<!=)(?<![ ])?(?<!["\'])((ht|f)tps?:\/\/[^\s\r\n\t<>"\'\!\(\),]+)/i', - // - // we can put , in the list of excluded char but need to keep . because of domain names. - // it is removed in the callback. - $r = preg_replace_callback('/(?<!=)(?<!["\'])((ht|f)tps?:\/\/[^\s\r\n\t<>"\'\!\(\),]+)/i', + $r = preg_replace_callback('/(?<![=\/"\'])((ht|f)tps?:\/\/[^\s\r\n\t<>"\']+)/i', create_function( '$matches', ' $url = $matches[1]; - $period = \'\'; - if (substr($url, -1, 1) == \'.\') { - $period = \'.\'; - $url = trim($url, \'.\'); + $punc = ""; + $last = substr($url, -1, 1); + if (in_array($last, array(".", "!", ",", "(", ")"))) { + $punc = $last; + $url = rtrim($url, ".!,()"); } $urltext = str_replace("/", "/<wbr />", $url); - return "<a href=\"$url\">$urltext</a>$period"; + return "<a href=\"$url\" rel=\"nofollow\">$urltext</a>$punc"; ' ), $text); @@ -43,51 +48,26 @@ function parse_urls($text) { /** * Create paragraphs from text with line spacing - * Borrowed from Wordpress. * * @param string $pee The string - * @param bool $br Add BRs? + * @deprecated Use elgg_autop instead + * @todo Add deprecation warning in 1.9 * - * @todo Rewrite * @return string **/ -function autop($pee, $br = 1) { - $pee = $pee . "\n"; // just to make things a little easier, pad the end - $pee = preg_replace('|<br />\s*<br />|', "\n\n", $pee); - // Space things out a little - $allblocks = '(?:table|thead|tfoot|caption|colgroup|tbody|tr|td|th|div|dl|dd|dt|ul|ol|li|pre|select|form|map|area|blockquote|address|math|style|input|p|h[1-6]|hr)'; - $pee = preg_replace('!(<' . $allblocks . '[^>]*>)!', "\n$1", $pee); - $pee = preg_replace('!(</' . $allblocks . '>)!', "$1\n\n", $pee); - $pee = str_replace(array("\r\n", "\r"), "\n", $pee); // cross-platform newlines - if (strpos($pee, '<object') !== false) { - $pee = preg_replace('|\s*<param([^>]*)>\s*|', "<param$1>", $pee); // no pee inside object/embed - $pee = preg_replace('|\s*</embed>\s*|', '</embed>', $pee); - } - $pee = preg_replace("/\n\n+/", "\n\n", $pee); // take care of duplicates - $pee = preg_replace('/\n?(.+?)(?:\n\s*\n|\z)/s', "<p>$1</p>\n", $pee); // make paragraphs, including one at the end - $pee = preg_replace('|<p>\s*?</p>|', '', $pee); // under certain strange conditions it could create a P of entirely whitespace - $pee = preg_replace('!<p>([^<]+)\s*?(</(?:div|address|form)[^>]*>)!', "<p>$1</p>$2", $pee); - $pee = preg_replace('|<p>|', "$1<p>", $pee); - $pee = preg_replace('!<p>\s*(</?' . $allblocks . '[^>]*>)\s*</p>!', "$1", $pee); // don't pee all over a tag - $pee = preg_replace("|<p>(<li.+?)</p>|", "$1", $pee); // problem with nested lists - $pee = preg_replace('|<p><blockquote([^>]*)>|i', "<blockquote$1><p>", $pee); - $pee = str_replace('</blockquote></p>', '</p></blockquote>', $pee); - $pee = preg_replace('!<p>\s*(</?' . $allblocks . '[^>]*>)!', "$1", $pee); - $pee = preg_replace('!(</?' . $allblocks . '[^>]*>)\s*</p>!', "$1", $pee); - if ($br) { - $pee = preg_replace_callback('/<(script|style).*?<\/\\1>/s', create_function('$matches', 'return str_replace("\n", "<WPPreserveNewline />", $matches[0]);'), $pee); - $pee = preg_replace('|(?<!<br />)\s*\n|', "<br />\n", $pee); // optionally make line breaks - $pee = str_replace('<WPPreserveNewline />', "\n", $pee); - } - $pee = preg_replace('!(</?' . $allblocks . '[^>]*>)\s*<br />!', "$1", $pee); - $pee = preg_replace('!<br />(\s*</?(?:p|li|div|dl|dd|dt|th|pre|td|ul|ol)[^>]*>)!', '$1', $pee); - //if (strpos($pee, '<pre') !== false) { - // mind the space between the ? and >. Only there because of the comment. - // $pee = preg_replace_callback('!(<pre.*? >)(.*?)</pre>!is', 'clean_pre', $pee ); - //} - $pee = preg_replace("|\n</p>$|", '</p>', $pee); - - return $pee; +function autop($pee) { + return elgg_autop($pee); +} + +/** + * Create paragraphs from text with line spacing + * + * @param string $string The string + * + * @return string + **/ +function elgg_autop($string) { + return ElggAutoP::getInstance()->process($string); } /** @@ -249,7 +229,6 @@ function elgg_normalize_url($url) { $php_5_3_0_to_5_3_2 = version_compare(PHP_VERSION, '5.3.0', '>=') && version_compare(PHP_VERSION, '5.3.3', '<'); - $validated = false; if ($php_5_2_13_and_below || $php_5_3_0_to_5_3_2) { $tmp_address = str_replace("-", "", $url); $validated = filter_var($tmp_address, FILTER_VALIDATE_URL); @@ -310,9 +289,9 @@ function elgg_get_friendly_title($title) { return $result; } - // handle some special cases - $title = str_replace('&', 'and', $title); - + // titles are often stored HTML encoded + $title = html_entity_decode($title, ENT_QUOTES, 'UTF-8'); + $title = ElggTranslit::urlize($title); return $title; @@ -384,7 +363,7 @@ function elgg_get_friendly_time($time) { /** * Strip tags and offer plugins the chance. * Plugins register for output:strip_tags plugin hook. - * Original string included in $params['original_string'] + * Original string included in $params['original_string'] * * @param string $string Formatted string * @@ -440,3 +419,51 @@ function _elgg_html_decode($string) { ); return $string; } + +/** + * Prepares query string for output to prevent CSRF attacks. + * + * @param string $string + * @return string + * + * @access private + */ +function _elgg_get_display_query($string) { + //encode <,>,&, quotes and characters above 127 + if (function_exists('mb_convert_encoding')) {
+ $display_query = mb_convert_encoding($string, 'HTML-ENTITIES', 'UTF-8');
+ } else {
+ // if no mbstring extension, we just strip characters
+ $display_query = preg_replace("/[^\x01-\x7F]/", "", $string);
+ }
+ return htmlspecialchars($display_query, ENT_QUOTES, 'UTF-8', false); +} + +/** + * Unit tests for Output + * + * @param string $hook unit_test + * @param string $type system + * @param mixed $value Array of tests + * @param mixed $params Params + * + * @return array + * @access private + */ +function output_unit_test($hook, $type, $value, $params) { + global $CONFIG; + $value[] = $CONFIG->path . 'engine/tests/api/output.php'; + return $value; +} + +/** + * Initialise the Output subsystem. + * + * @return void + * @access private + */ +function output_init() { + elgg_register_plugin_hook_handler('unit_test', 'system', 'output_unit_test'); +} + +elgg_register_event_handler('init', 'system', 'output_init'); |