From 528a6f8a232c060faf024008e4f8a09b4aa8dabc Mon Sep 17 00:00:00 2001 From: ArthurHoaro Date: Mon, 21 Mar 2016 21:40:49 +0100 Subject: [PATCH] Refactor filter in LinkDB * search type now carried by LinkDB in order to factorize code between different search sources. * LinkDB->filter split in 3 method: filterSearch, filterHash, filterDay (we know what type of filter is needed). * filterHash now throw a LinkNotFoundException if it doesn't exist: internal implementation choice, still displays a 404. * Smallhash regex has been rewritten. * Unit tests update --- application/FeedBuilder.php | 18 +------ application/LinkDB.php | 64 ++++++++++++++++++++-- application/LinkFilter.php | 14 ++++- application/Updater.php | 2 +- index.php | 99 ++++++++++------------------------- tests/LinkDBTest.php | 56 ++++++++++++++++++-- tests/LinkFilterTest.php | 7 ++- tests/Updater/UpdaterTest.php | 4 +- 8 files changed, 158 insertions(+), 106 deletions(-) diff --git a/application/FeedBuilder.php b/application/FeedBuilder.php index 50e09831..ddefe6ce 100644 --- a/application/FeedBuilder.php +++ b/application/FeedBuilder.php @@ -103,23 +103,7 @@ public function __construct($linkDB, $feedType, $serverInfo, $userInput, $isLogg public function buildData() { // Optionally filter the results: - $searchtags = !empty($this->userInput['searchtags']) ? escape($this->userInput['searchtags']) : ''; - $searchterm = !empty($this->userInput['searchterm']) ? escape($this->userInput['searchterm']) : ''; - if (! empty($searchtags) && ! empty($searchterm)) { - $linksToDisplay = $this->linkDB->filter( - LinkFilter::$FILTER_TAG | LinkFilter::$FILTER_TEXT, - array($searchtags, $searchterm) - ); - } - elseif ($searchtags) { - $linksToDisplay = $this->linkDB->filter(LinkFilter::$FILTER_TAG, $searchtags); - } - elseif ($searchterm) { - $linksToDisplay = $this->linkDB->filter(LinkFilter::$FILTER_TEXT, $searchterm); - } - else { - $linksToDisplay = $this->linkDB; - } + $linksToDisplay = $this->linkDB->filterSearch($this->userInput); $nblinksToDisplay = $this->getNbLinks(count($linksToDisplay)); diff --git a/application/LinkDB.php b/application/LinkDB.php index 1b505620..a62341fc 100644 --- a/application/LinkDB.php +++ b/application/LinkDB.php @@ -341,17 +341,71 @@ public function getLinkFromUrl($url) } /** - * Filter links. + * Returns the shaare corresponding to a smallHash. * - * @param string $type Type of filter. - * @param mixed $request Search request, string or array. + * @param string $request QUERY_STRING server parameter. + * + * @return array $filtered array containing permalink data. + * + * @throws LinkNotFoundException if the smallhash is malformed or doesn't match any link. + */ + public function filterHash($request) + { + $request = substr($request, 0, 6); + $linkFilter = new LinkFilter($this->_links); + return $linkFilter->filter(LinkFilter::$FILTER_HASH, $request); + } + + /** + * Returns the list of articles for a given day. + * + * @param string $request day to filter. Format: YYYYMMDD. + * + * @return array list of shaare found. + */ + public function filterDay($request) { + $linkFilter = new LinkFilter($this->_links); + return $linkFilter->filter(LinkFilter::$FILTER_DAY, $request); + } + + /** + * Filter links according to search parameters. + * + * @param array $filterRequest Search request content. Supported keys: + * - searchtags: list of tags + * - searchterm: term search * @param bool $casesensitive Optional: Perform case sensitive filter * @param bool $privateonly Optional: Returns private links only if true. * - * @return array filtered links + * @return array filtered links, all links if no suitable filter was provided. */ - public function filter($type = '', $request = '', $casesensitive = false, $privateonly = false) + public function filterSearch($filterRequest = array(), $casesensitive = false, $privateonly = false) { + // Filter link database according to parameters. + $searchtags = !empty($filterRequest['searchtags']) ? escape($filterRequest['searchtags']) : ''; + $searchterm = !empty($filterRequest['searchterm']) ? escape($filterRequest['searchterm']) : ''; + + // Search tags + fullsearch. + if (empty($type) && ! empty($searchtags) && ! empty($searchterm)) { + $type = LinkFilter::$FILTER_TAG | LinkFilter::$FILTER_TEXT; + $request = array($searchtags, $searchterm); + } + // Search by tags. + elseif (! empty($searchtags)) { + $type = LinkFilter::$FILTER_TAG; + $request = $searchtags; + } + // Fulltext search. + elseif (! empty($searchterm)) { + $type = LinkFilter::$FILTER_TEXT; + $request = $searchterm; + } + // Otherwise, display without filtering. + else { + $type = ''; + $request = ''; + } + $linkFilter = new LinkFilter($this->_links); return $linkFilter->filter($type, $request, $casesensitive, $privateonly); } diff --git a/application/LinkFilter.php b/application/LinkFilter.php index 3fd803cb..5e0d8015 100644 --- a/application/LinkFilter.php +++ b/application/LinkFilter.php @@ -44,7 +44,7 @@ public function __construct($links) * Filter links according to parameters. * * @param string $type Type of filter (eg. tags, permalink, etc.). - * @param string $request Filter content. + * @param mixed $request Filter content. * @param bool $casesensitive Optional: Perform case sensitive filter if true. * @param bool $privateonly Optional: Only returns private links if true. * @@ -110,6 +110,8 @@ private function noFilter($privateonly = false) * @param string $smallHash permalink hash. * * @return array $filtered array containing permalink data. + * + * @throws LinkNotFoundException if the smallhash doesn't match any link. */ private function filterSmallHash($smallHash) { @@ -121,6 +123,11 @@ private function filterSmallHash($smallHash) return $filtered; } } + + if (empty($filtered)) { + throw new LinkNotFoundException(); + } + return $filtered; } @@ -318,3 +325,8 @@ public static function tagsStrToArray($tags, $casesensitive) return array_filter(explode(' ', trim($tagsOut)), 'strlen'); } } + +class LinkNotFoundException extends Exception +{ + protected $message = 'The link you are trying to reach does not exist or has been deleted.'; +} diff --git a/application/Updater.php b/application/Updater.php index 773a1ffa..58c13c07 100644 --- a/application/Updater.php +++ b/application/Updater.php @@ -137,7 +137,7 @@ public function updateMethodMergeDeprecatedConfigFile() */ public function updateMethodRenameDashTags() { - $linklist = $this->linkDB->filter(); + $linklist = $this->linkDB->filterSearch(); foreach ($linklist as $link) { $link['tags'] = preg_replace('/(^| )\-/', '$1', $link['tags']); $link['tags'] = implode(' ', array_unique(LinkFilter::tagsStrToArray($link['tags'], true))); diff --git a/index.php b/index.php index 6e14ff3f..79c66648 100644 --- a/index.php +++ b/index.php @@ -816,7 +816,7 @@ function showDaily($pageBuilder) } try { - $linksToDisplay = $LINKSDB->filter(LinkFilter::$FILTER_DAY, $day); + $linksToDisplay = $LINKSDB->filterDay($day); } catch (Exception $exc) { error_log($exc); $linksToDisplay = array(); @@ -962,24 +962,7 @@ function renderPage() if ($targetPage == Router::$PAGE_PICWALL) { // Optionally filter the results: - $searchtags = !empty($_GET['searchtags']) ? escape($_GET['searchtags']) : ''; - $searchterm = !empty($_GET['searchterm']) ? escape($_GET['searchterm']) : ''; - if (! empty($searchtags) && ! empty($searchterm)) { - $links = $LINKSDB->filter( - LinkFilter::$FILTER_TAG | LinkFilter::$FILTER_TEXT, - array($searchtags, $searchterm) - ); - } - elseif ($searchtags) { - $links = $LINKSDB->filter(LinkFilter::$FILTER_TAG, $searchtags); - } - elseif ($searchterm) { - $links = $LINKSDB->filter(LinkFilter::$FILTER_TEXT, $searchterm); - } - else { - $links = $LINKSDB; - } - + $links = $LINKSDB->filterSearch($_GET); $linksToDisplay = array(); // Get only links which have a thumbnail. @@ -1071,7 +1054,7 @@ function renderPage() startsWith($query,'do='. $targetPage) && !isLoggedIn() ); $cached = $cache->cachedVersion(); - if (!empty($cached)) { + if (false && !empty($cached)) { echo $cached; exit; } @@ -1352,9 +1335,9 @@ function renderPage() // Delete a tag: if (isset($_POST['deletetag']) && !empty($_POST['fromtag'])) { - $needle=trim($_POST['fromtag']); + $needle = trim($_POST['fromtag']); // True for case-sensitive tag search. - $linksToAlter = $LINKSDB->filter(LinkFilter::$FILTER_TAG, $needle, true); + $linksToAlter = $LINKSDB->filterSearch(array('searchtags' => $needle), true); foreach($linksToAlter as $key=>$value) { $tags = explode(' ',trim($value['tags'])); @@ -1369,9 +1352,9 @@ function renderPage() // Rename a tag: if (isset($_POST['renametag']) && !empty($_POST['fromtag']) && !empty($_POST['totag'])) { - $needle=trim($_POST['fromtag']); + $needle = trim($_POST['fromtag']); // True for case-sensitive tag search. - $linksToAlter = $LINKSDB->filter(LinkFilter::$FILTER_TAG, $needle, true); + $linksToAlter = $LINKSDB->filterSearch(array('searchtags' => $needle), true); foreach($linksToAlter as $key=>$value) { $tags = explode(' ',trim($value['tags'])); @@ -1807,60 +1790,32 @@ function importFile() } } -// ----------------------------------------------------------------------------------------------- -// Template for the list of links (