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Diffstat (limited to 'phpBB/phpbb/textreparser/base.php')
| -rw-r--r-- | phpBB/phpbb/textreparser/base.php | 243 |
1 files changed, 243 insertions, 0 deletions
diff --git a/phpBB/phpbb/textreparser/base.php b/phpBB/phpbb/textreparser/base.php new file mode 100644 index 0000000000..3e5ee248a1 --- /dev/null +++ b/phpBB/phpbb/textreparser/base.php @@ -0,0 +1,243 @@ +<?php +/** +* +* This file is part of the phpBB Forum Software package. +* +* @copyright (c) phpBB Limited <https://www.phpbb.com> +* @license GNU General Public License, version 2 (GPL-2.0) +* +* For full copyright and license information, please see +* the docs/CREDITS.txt file. +* +*/ + +namespace phpbb\textreparser; + +abstract class base implements reparser_interface +{ + /** + * @var bool Whether to save changes to the database + */ + protected $save_changes = true; + + /** + * {@inheritdoc} + */ + abstract public function get_max_id(); + + /** + * Return all records in given range + * + * @param integer $min_id Lower bound + * @param integer $max_id Upper bound + * @return array Array of records + */ + abstract protected function get_records_by_range($min_id, $max_id); + + /** + * {@inheritdoc} + */ + abstract protected function save_record(array $record); + + /** + * Add fields to given record, if applicable + * + * The enable_* fields are not always saved to the database. Sometimes we need to guess their + * original value based on the text content or possibly other fields + * + * @param array $record Original record + * @return array Complete record + */ + protected function add_missing_fields(array $record) + { + if (!isset($record['enable_bbcode'], $record['enable_smilies'], $record['enable_magic_url'])) + { + if (isset($record['options'])) + { + $record += array( + 'enable_bbcode' => (bool) ($record['options'] & OPTION_FLAG_BBCODE), + 'enable_smilies' => (bool) ($record['options'] & OPTION_FLAG_SMILIES), + 'enable_magic_url' => (bool) ($record['options'] & OPTION_FLAG_LINKS), + ); + } + else + { + $record += array( + 'enable_bbcode' => $this->guess_bbcodes($record), + 'enable_smilies' => $this->guess_smilies($record), + 'enable_magic_url' => $this->guess_magic_url($record), + ); + } + } + + // Those BBCodes are disabled based on context and user permissions and that value is never + // stored in the database. Here we test whether they were used in the original text. + $bbcodes = array('flash', 'img', 'quote', 'url'); + foreach ($bbcodes as $bbcode) + { + $field_name = 'enable_' . $bbcode . '_bbcode'; + $record[$field_name] = $this->guess_bbcode($record, $bbcode); + } + + // Magic URLs are tied to the URL BBCode, that's why if magic URLs are enabled we make sure + // that the URL BBCode is also enabled + if ($record['enable_magic_url']) + { + $record['enable_url_bbcode'] = true; + } + + return $record; + } + + /** + * Disable saving changes to the database + */ + public function disable_save() + { + $this->save_changes = false; + } + + /** + * Enable saving changes to the database + */ + public function enable_save() + { + $this->save_changes = true; + } + + /** + * Guess whether given BBCode is in use in given record + * + * @param array $record + * @param string $bbcode + * @return bool + */ + protected function guess_bbcode(array $record, $bbcode) + { + if (!empty($record['bbcode_uid'])) + { + // Look for the closing tag, e.g. [/url] + $match = '[/' . $bbcode . ':' . $record['bbcode_uid']; + if (strpos($record['text'], $match) !== false) + { + return true; + } + } + + if (substr($record['text'], 0, 2) === '<r') + { + // Look for the closing tag inside of a e element, in an element of the same name, e.g. + // <e>[/url]</e></URL> + $match = '<e>[/' . $bbcode . ']</e></' . strtoupper($bbcode) . '>'; + if (strpos($record['text'], $match) !== false) + { + return true; + } + } + + return false; + } + + /** + * Guess whether any BBCode is in use in given record + * + * @param array $record + * @return bool + */ + protected function guess_bbcodes(array $record) + { + if (!empty($record['bbcode_uid'])) + { + // Test whether the bbcode_uid is in use + $match = ':' . $record['bbcode_uid']; + if (strpos($record['text'], $match) !== false) + { + return true; + } + } + + if (substr($record['text'], 0, 2) === '<r') + { + // Look for a closing tag inside of an e element + return (bool) preg_match('(<e>\\[/\\w+\\]</e>)', $match); + } + + return false; + } + + /** + * Guess whether magic URLs are in use in given record + * + * @param array $record + * @return bool + */ + protected function guess_magic_url(array $record) + { + // Look for <!-- m --> or for a URL tag that's not immediately followed by <s> + return (strpos($record['text'], '<!-- m -->') !== false || preg_match('(<URL [^>]++>(?!<s>))', $record['text'])); + } + + /** + * Guess whether smilies are in use in given record + * + * @param array $record + * @return bool + */ + protected function guess_smilies(array $record) + { + return (strpos($record['text'], '<!-- s') !== false || strpos($record['text'], '<E>') !== false); + } + + /** + * {@inheritdoc} + */ + public function reparse_range($min_id, $max_id) + { + foreach ($this->get_records_by_range($min_id, $max_id) as $record) + { + $this->reparse_record($record); + } + } + + /** + * Reparse given record + * + * @param array $record Associative array containing the record's data + */ + protected function reparse_record(array $record) + { + $record = $this->add_missing_fields($record); + $flags = ($record['enable_bbcode']) ? OPTION_FLAG_BBCODE : 0; + $flags |= ($record['enable_smilies']) ? OPTION_FLAG_SMILIES : 0; + $flags |= ($record['enable_magic_url']) ? OPTION_FLAG_LINKS : 0; + $unparsed = array_merge( + $record, + generate_text_for_edit($record['text'], $record['bbcode_uid'], $flags) + ); + + // generate_text_for_edit() and decode_message() actually return the text as HTML. It has to + // be decoded to plain text before it can be reparsed + $text = html_entity_decode($unparsed['text'], ENT_QUOTES, 'UTF-8'); + $bitfield = $flags = null; + generate_text_for_storage( + $text, + $unparsed['bbcode_uid'], + $bitfield, + $flags, + $unparsed['enable_bbcode'], + $unparsed['enable_magic_url'], + $unparsed['enable_smilies'], + $unparsed['enable_img_bbcode'], + $unparsed['enable_flash_bbcode'], + $unparsed['enable_quote_bbcode'], + $unparsed['enable_url_bbcode'] + ); + + // Save the new text if it has changed and it's not a dry run + if ($text !== $record['text'] && $this->save_changes) + { + $record['text'] = $text; + $this->save_record($record); + } + } +} |