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| author | Oliver Schramm <oliver.schramm97@gmail.com> | 2017-10-05 14:54:47 +0200 |
|---|---|---|
| committer | Oliver Schramm <oliver.schramm97@gmail.com> | 2017-10-05 14:54:47 +0200 |
| commit | 5514b1069968d451adb7eaf89278a6e1e5dc20df (patch) | |
| tree | 245b21642c134c4509e46fab60d130065e123624 /phpBB/phpbb/textformatter/s9e/link_helper.php | |
| parent | 93621aa1844ab48d9bae068d9872d2c49ae86de4 (diff) | |
| parent | ca5678cc1c2a1f723d39127e0c066eba6c9a3336 (diff) | |
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Merge pull request #4960 from rxu/ticket/15367
[ticket/15367] Escape special characters in Sphinx search backend
Diffstat (limited to 'phpBB/phpbb/textformatter/s9e/link_helper.php')
| -rw-r--r-- | phpBB/phpbb/textformatter/s9e/link_helper.php | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/phpBB/phpbb/textformatter/s9e/link_helper.php b/phpBB/phpbb/textformatter/s9e/link_helper.php new file mode 100644 index 0000000000..0f44603dec --- /dev/null +++ b/phpBB/phpbb/textformatter/s9e/link_helper.php @@ -0,0 +1,118 @@ +<?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\textformatter\s9e; + +class link_helper +{ + /** + * Clean up and invalidate a LINK_TEXT tag if applicable + * + * Will invalidate the tag if its replacement text is the same as the original + * text and would have no visible effect + * + * @param \s9e\TextFormatter\Parser\Tag $tag LINK_TEXT tag + * @param \s9e\TextFormatter\Parser $parser Parser + * @return bool Whether the tag is valid + */ + public function cleanup_tag(\s9e\TextFormatter\Parser\Tag $tag, \s9e\TextFormatter\Parser $parser) + { + // Invalidate if the content of the tag matches the text attribute + $text = substr($parser->getText(), $tag->getPos(), $tag->getLen()); + + return ($text !== $tag->getAttribute('text')); + } + + /** + * Create a LINK_TEXT tag inside of a link + * + * Meant to only apply to linkified URLs and [url] BBCodes without a parameter + * + * @param \s9e\TextFormatter\Parser\Tag $tag URL tag (start tag) + * @param \s9e\TextFormatter\Parser $parser Parser + * @return bool Always true to indicate that the tag is valid + */ + public function generate_link_text_tag(\s9e\TextFormatter\Parser\Tag $tag, \s9e\TextFormatter\Parser $parser) + { + // Only create a LINK_TEXT tag if the start tag is paired with an end + // tag, which is the case with tags from the Autolink plugins and with + // the [url] BBCode when its content is used for the URL + if (!$tag->getEndTag() || !$this->should_shorten($tag, $parser->getText())) + { + return true; + } + + // Capture the text between the start tag and its end tag + $start = $tag->getPos() + $tag->getLen(); + $end = $tag->getEndTag()->getPos(); + $length = $end - $start; + $text = substr($parser->getText(), $start, $length); + + // Create a tag that consumes the link's text + $parser->addSelfClosingTag('LINK_TEXT', $start, $length)->setAttribute('text', $text); + + return true; + } + + /** + * Test whether we should shorten this tag's text + * + * Will test whether the tag either does not use any markup or uses a single + * [url] BBCode + * + * @param \s9e\TextFormatter\Parser\Tag $tag URL tag + * @param string $text Original text + * @return bool + */ + protected function should_shorten(\s9e\TextFormatter\Parser\Tag $tag, $text) + { + return ($tag->getLen() === 0 || strtolower(substr($text, $tag->getPos(), $tag->getLen())) === '[url]'); + } + + /** + * Remove the board's root URL from a the start of a string + * + * @param \s9e\TextFormatter\Parser\Tag $tag LINK_TEXT tag + * @param string $board_url Forum's root URL (with trailing slash) + * @return bool Always true to indicate that the tag is valid + */ + public function truncate_local_url(\s9e\TextFormatter\Parser\Tag $tag, $board_url) + { + $text = $tag->getAttribute('text'); + if (stripos($text, $board_url) === 0 && strlen($text) > strlen($board_url)) + { + $tag->setAttribute('text', substr($text, strlen($board_url))); + } + + return true; + } + + /** + * Truncate the replacement text set in a LINK_TEXT tag + * + * @param \s9e\TextFormatter\Parser\Tag $tag LINK_TEXT tag + * @return bool Always true to indicate that the tag is valid + */ + public function truncate_text(\s9e\TextFormatter\Parser\Tag $tag) + { + $text = $tag->getAttribute('text'); + if (utf8_strlen($text) > 55) + { + $text = utf8_substr($text, 0, 39) . ' ... ' . utf8_substr($text, -10); + } + + $tag->setAttribute('text', $text); + + return true; + } +} |