X-Git-Url: http://www.aleph1.co.uk/gitweb/?p=yaffs-website;a=blobdiff_plain;f=vendor%2Fezyang%2Fhtmlpurifier%2Fplugins%2Fphorum%2Fhtmlpurifier.php;fp=vendor%2Fezyang%2Fhtmlpurifier%2Fplugins%2Fphorum%2Fhtmlpurifier.php;h=f66d8c36cda90a9b911e9e60f24b5889ff1010f9;hp=0000000000000000000000000000000000000000;hb=a2bd1bf0c2c1f1a17d188f4dc0726a45494cefae;hpb=57c063afa3f66b07c4bbddc2d6129a96d90f0aad diff --git a/vendor/ezyang/htmlpurifier/plugins/phorum/htmlpurifier.php b/vendor/ezyang/htmlpurifier/plugins/phorum/htmlpurifier.php new file mode 100644 index 000000000..f66d8c36c --- /dev/null +++ b/vendor/ezyang/htmlpurifier/plugins/phorum/htmlpurifier.php @@ -0,0 +1,316 @@ + $message){ + if(isset($message['body'])) { + + if ($message_id) { + // we're dealing with a real message, not a fake, so + // there a number of shortcuts that can be taken + + if (isset($message['meta']['htmlpurifier_light'])) { + // format hook was called outside of Phorum's normal + // functions, do the abridged purification + $data[$message_id]['body'] = $purifier->purify($message['body']); + continue; + } + + if (!empty($PHORUM['args']['purge'])) { + // purge the cache, must be below the following if + unset($message['meta']['body_cache']); + } + + if ( + isset($message['meta']['body_cache']) && + isset($message['meta']['body_cache_serial']) && + $message['meta']['body_cache_serial'] == $cache_serial + ) { + // cached version is present, bail out early + $data[$message_id]['body'] = base64_decode($message['meta']['body_cache']); + continue; + } + } + + // migration might edit this array, that's why it's defined + // so early + $updated_message = array(); + + // create the $body variable + if ( + $message_id && // message must be real to migrate + !isset($message['meta']['body_cache_serial']) + ) { + // perform migration + $fake_data = array(); + list($signature, $edit_message) = phorum_htmlpurifier_remove_sig_and_editmessage($message); + $fake_data[$message_id] = $message; + $fake_data = phorum_htmlpurifier_migrate($fake_data); + $body = $fake_data[$message_id]['body']; + $body = str_replace("\n", "\n", $body); + $updated_message['body'] = $body; // save it in + $body .= $signature . $edit_message; // add it back in + } else { + // reverse Phorum's pre-processing + $body = $message['body']; + // order is important + $body = str_replace("\n", "\n", $body); + $body = str_replace(array('<','>','&', '"'), array('<','>','&','"'), $body); + if (!$message_id && defined('PHORUM_CONTROL_CENTER')) { + // we're in control.php, so it was double-escaped + $body = str_replace(array('<','>','&', '"'), array('<','>','&','"'), $body); + } + } + + $body = $purifier->purify($body); + + // dynamically update the cache (MUST BE DONE HERE!) + // this is inefficient because it's one db call per + // cache miss, but once the cache is in place things are + // a lot zippier. + + if ($message_id) { // make sure it's not a fake id + $updated_message['meta'] = $message['meta']; + $updated_message['meta']['body_cache'] = base64_encode($body); + $updated_message['meta']['body_cache_serial'] = $cache_serial; + phorum_db_update_message($message_id, $updated_message); + } + + // must not get overloaded until after we cache it, otherwise + // we'll inadvertently change the original text + $data[$message_id]['body'] = $body; + + } + } + + return $data; +} + +// ----------------------------------------------------------------------- +// This is fragile code, copied from read.php:596 (Phorum 5.2.6). Please +// keep this code in-sync with Phorum + +/** + * Generates a signature based on a message array + */ +function phorum_htmlpurifier_generate_sig($row) +{ + $phorum_sig = ''; + if(isset($row["user"]["signature"]) + && isset($row['meta']['show_signature']) && $row['meta']['show_signature']==1){ + $phorum_sig=trim($row["user"]["signature"]); + if(!empty($phorum_sig)){ + $phorum_sig="\n\n$phorum_sig"; + } + } + return $phorum_sig; +} + +/** + * Generates an edit message based on a message array + */ +function phorum_htmlpurifier_generate_editmessage($row) +{ + $PHORUM = $GLOBALS['PHORUM']; + $editmessage = ''; + if(isset($row['meta']['edit_count']) && $row['meta']['edit_count'] > 0) { + $editmessage = str_replace ("%count%", $row['meta']['edit_count'], $PHORUM["DATA"]["LANG"]["EditedMessage"]); + $editmessage = str_replace ("%lastedit%", phorum_date($PHORUM["short_date_time"],$row['meta']['edit_date']), $editmessage); + $editmessage = str_replace ("%lastuser%", $row['meta']['edit_username'], $editmessage); + $editmessage = "\n\n\n\n$editmessage"; + } + return $editmessage; +} + +// End fragile code +// ----------------------------------------------------------------------- + +/** + * Removes the signature and edit message from a message + * @param $row Message passed by reference + */ +function phorum_htmlpurifier_remove_sig_and_editmessage(&$row) +{ + $signature = phorum_htmlpurifier_generate_sig($row); + $editmessage = phorum_htmlpurifier_generate_editmessage($row); + $replacements = array(); + // we need to remove add as that is the form these + // extra bits are in. + if ($signature) $replacements[str_replace("\n", "\n", $signature)] = ''; + if ($editmessage) $replacements[str_replace("\n", "\n", $editmessage)] = ''; + $row['body'] = strtr($row['body'], $replacements); + return array($signature, $editmessage); +} + +/** + * Indicate that data is fully HTML and not from migration, invalidate + * previous caches + * @note This function could generate the actual cache entries, but + * since there's data missing that must be deferred to the first read + */ +function phorum_htmlpurifier_posting($message) +{ + $PHORUM = $GLOBALS["PHORUM"]; + unset($message['meta']['body_cache']); // invalidate the cache + $message['meta']['body_cache_serial'] = $PHORUM['mod_htmlpurifier']['body_cache_serial']; + return $message; +} + +/** + * Overload quoting mechanism to prevent default, mail-style quote from happening + */ +function phorum_htmlpurifier_quote($array) +{ + $PHORUM = $GLOBALS["PHORUM"]; + $purifier =& HTMLPurifier::getInstance(); + $text = $purifier->purify($array[1]); + $source = htmlspecialchars($array[0]); + return "
\n$text\n
"; +} + +/** + * Ensure that our format hook is processed last. Also, loads the library. + * @credits + */ +function phorum_htmlpurifier_common() +{ + require_once(dirname(__FILE__).'/htmlpurifier/HTMLPurifier.auto.php'); + require(dirname(__FILE__).'/init-config.php'); + + $config = phorum_htmlpurifier_get_config(); + HTMLPurifier::getInstance($config); + + // increment revision.txt if you want to invalidate the cache + $GLOBALS['PHORUM']['mod_htmlpurifier']['body_cache_serial'] = $config->getSerial(); + + // load migration + if (file_exists(dirname(__FILE__) . '/migrate.php')) { + include(dirname(__FILE__) . '/migrate.php'); + } else { + echo 'Error: No migration path specified for HTML Purifier, please check + modes/htmlpurifier/migrate.bbcode.php for instructions on + how to migrate from your previous markup language.'; + exit; + } + + if (!function_exists('phorum_htmlpurifier_migrate')) { + // Dummy function + function phorum_htmlpurifier_migrate($data) {return $data;} + } + +} + +/** + * Pre-emptively performs purification if it looks like a WYSIWYG editor + * is being used + */ +function phorum_htmlpurifier_before_editor($message) +{ + if (!empty($GLOBALS['PHORUM']['mod_htmlpurifier']['wysiwyg'])) { + if (!empty($message['body'])) { + $body = $message['body']; + // de-entity-ize contents + $body = str_replace(array('<','>','&'), array('<','>','&'), $body); + $purifier =& HTMLPurifier::getInstance(); + $body = $purifier->purify($body); + // re-entity-ize contents + $body = htmlspecialchars($body, ENT_QUOTES, $GLOBALS['PHORUM']['DATA']['CHARSET']); + $message['body'] = $body; + } + } + return $message; +} + +function phorum_htmlpurifier_editor_after_subject() +{ + // don't show this message if it's a WYSIWYG editor, since it will + // then be handled automatically + if (!empty($GLOBALS['PHORUM']['mod_htmlpurifier']['wysiwyg'])) { + $i = $GLOBALS['PHORUM']['DATA']['MODE']; + if ($i == 'quote' || $i == 'edit' || $i == 'moderation') { + ?> +
+

+ Notice: HTML has been scrubbed for your safety. + If you would like to see the original, turn off WYSIWYG mode + (consult your administrator for details.) +

+
+
+

+ HTML input is enabled. Make sure you escape all HTML and + angled brackets with &lt; and &gt;. +

config; + if ($config->get('AutoFormat.AutoParagraph')) { + ?>

+ Auto-paragraphing is enabled. Double + newlines will be converted to paragraphs; for single + newlines, use the pre tag. +

getDefinition('HTML'); + $allowed = array(); + foreach ($html_definition->info as $name => $x) $allowed[] = "$name"; + sort($allowed); + $allowed_text = implode(', ', $allowed); + ?>

Allowed tags: .

+

+

+ For inputting literal code such as HTML and PHP for display, use + CDATA tags to auto-escape your angled brackets, and pre + to preserve newlines: +

+ 
<pre><![CDATA[
+Place code here
+]]></pre>
+

+ Power users, you can hide this notice with: + 

.htmlpurifier-help {display:none;}
+

+