public static $FILTER_DAY = 'FILTER_DAY';
/**
- * @var array all available links.
+ * @var string Allowed characters for hashtags (regex syntax).
+ */
+ public static $HASHTAG_CHARS = '\p{Pc}\p{N}\p{L}\p{Mn}';
+
+ /**
+ * @var LinkDB all available links.
*/
private $links;
/**
- * @param array $links initialization.
+ * @param LinkDB $links initialization.
*/
public function __construct($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.
+ * @param string $visibility Optional: return only all/private/public links
*
* @return array filtered link list.
*/
- public function filter($type, $request, $casesensitive = false, $privateonly = false)
+ public function filter($type, $request, $casesensitive = false, $visibility = 'all')
{
+ if (! in_array($visibility, ['all', 'public', 'private'])) {
+ $visibility = 'all';
+ }
+
switch($type) {
case self::$FILTER_HASH:
return $this->filterSmallHash($request);
- break;
+ case self::$FILTER_TAG | self::$FILTER_TEXT:
+ if (!empty($request)) {
+ $filtered = $this->links;
+ if (isset($request[0])) {
+ $filtered = $this->filterTags($request[0], $casesensitive, $visibility);
+ }
+ if (isset($request[1])) {
+ $lf = new LinkFilter($filtered);
+ $filtered = $lf->filterFulltext($request[1], $visibility);
+ }
+ return $filtered;
+ }
+ return $this->noFilter($visibility);
case self::$FILTER_TEXT:
- return $this->filterFulltext($request, $privateonly);
- break;
+ return $this->filterFulltext($request, $visibility);
case self::$FILTER_TAG:
- return $this->filterTags($request, $casesensitive, $privateonly);
- break;
+ return $this->filterTags($request, $casesensitive, $visibility);
case self::$FILTER_DAY:
return $this->filterDay($request);
- break;
default:
- return $this->noFilter($privateonly);
+ return $this->noFilter($visibility);
}
}
/**
* Unknown filter, but handle private only.
*
- * @param bool $privateonly returns private link only if true.
+ * @param string $visibility Optional: return only all/private/public links
*
* @return array filtered links.
*/
- private function noFilter($privateonly = false)
+ private function noFilter($visibility = 'all')
{
- if (! $privateonly) {
- krsort($this->links);
+ if ($visibility === 'all') {
return $this->links;
}
$out = array();
- foreach ($this->links as $value) {
- if ($value['private']) {
- $out[$value['linkdate']] = $value;
+ foreach ($this->links as $key => $value) {
+ if ($value['private'] && $visibility === 'private') {
+ $out[$key] = $value;
+ } else if (! $value['private'] && $visibility === 'public') {
+ $out[$key] = $value;
}
}
- krsort($out);
return $out;
}
* @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)
{
$filtered = array();
- foreach ($this->links as $l) {
- if ($smallHash == smallHash($l['linkdate'])) {
+ foreach ($this->links as $key => $l) {
+ if ($smallHash == $l['shorturl']) {
// Yes, this is ugly and slow
- $filtered[$l['linkdate']] = $l;
+ $filtered[$key] = $l;
return $filtered;
}
}
+
+ if (empty($filtered)) {
+ throw new LinkNotFoundException();
+ }
+
return $filtered;
}
* - see https://github.com/shaarli/Shaarli/issues/75 for examples
*
* @param string $searchterms search query.
- * @param bool $privateonly return only private links if true.
+ * @param string $visibility Optional: return only all/private/public links.
*
* @return array search results.
*/
- private function filterFulltext($searchterms, $privateonly = false)
+ private function filterFulltext($searchterms, $visibility = 'all')
{
+ if (empty($searchterms)) {
+ return $this->noFilter($visibility);
+ }
+
$filtered = array();
$search = mb_convert_case(html_entity_decode($searchterms), MB_CASE_LOWER, 'UTF-8');
$exactRegex = '/"([^"]+)"/';
$keys = array('title', 'description', 'url', 'tags');
// Iterate over every stored link.
- foreach ($this->links as $link) {
+ foreach ($this->links as $id => $link) {
// ignore non private links when 'privatonly' is on.
- if (! $link['private'] && $privateonly === true) {
- continue;
+ if ($visibility !== 'all') {
+ if (! $link['private'] && $visibility === 'private') {
+ continue;
+ } else if ($link['private'] && $visibility === 'public') {
+ continue;
+ }
}
// Concatenate link fields to search across fields.
}
if ($found) {
- $filtered[$link['linkdate']] = $link;
+ $filtered[$id] = $link;
}
}
- krsort($filtered);
return $filtered;
}
*
* @param string $tags list of tags separated by commas or blank spaces.
* @param bool $casesensitive ignore case if false.
- * @param bool $privateonly returns private links only.
+ * @param string $visibility Optional: return only all/private/public links.
*
* @return array filtered links.
*/
- public function filterTags($tags, $casesensitive = false, $privateonly = false)
+ public function filterTags($tags, $casesensitive = false, $visibility = 'all')
{
+ // Implode if array for clean up.
+ $tags = is_array($tags) ? trim(implode(' ', $tags)) : $tags;
+ if (empty($tags)) {
+ return $this->noFilter($visibility);
+ }
+
$searchtags = self::tagsStrToArray($tags, $casesensitive);
$filtered = array();
if (empty($searchtags)) {
return $filtered;
}
- foreach ($this->links as $link) {
+ foreach ($this->links as $key => $link) {
// ignore non private links when 'privatonly' is on.
- if (! $link['private'] && $privateonly === true) {
- continue;
+ if ($visibility !== 'all') {
+ if (! $link['private'] && $visibility === 'private') {
+ continue;
+ } else if ($link['private'] && $visibility === 'public') {
+ continue;
+ }
}
$linktags = self::tagsStrToArray($link['tags'], $casesensitive);
for ($i = 0 ; $i < count($searchtags) && $found; $i++) {
// Exclusive search, quit if tag found.
// Or, tag not found in the link, quit.
- if (($searchtags[$i][0] == '-' && in_array(substr($searchtags[$i], 1), $linktags))
- || ($searchtags[$i][0] != '-') && ! in_array($searchtags[$i], $linktags)
+ if (($searchtags[$i][0] == '-'
+ && $this->searchTagAndHashTag(substr($searchtags[$i], 1), $linktags, $link['description']))
+ || ($searchtags[$i][0] != '-')
+ && ! $this->searchTagAndHashTag($searchtags[$i], $linktags, $link['description'])
) {
$found = false;
}
}
if ($found) {
- $filtered[$link['linkdate']] = $link;
+ $filtered[$key] = $link;
}
}
- krsort($filtered);
return $filtered;
}
}
$filtered = array();
- foreach ($this->links as $l) {
- if (startsWith($l['linkdate'], $day)) {
- $filtered[$l['linkdate']] = $l;
+ foreach ($this->links as $key => $l) {
+ if ($l['created']->format('Ymd') == $day) {
+ $filtered[$key] = $l;
}
}
- ksort($filtered);
- return $filtered;
+
+ // sort by date ASC
+ return array_reverse($filtered, true);
+ }
+
+ /**
+ * Check if a tag is found in the taglist, or as an hashtag in the link description.
+ *
+ * @param string $tag Tag to search.
+ * @param array $taglist List of tags for the current link.
+ * @param string $description Link description.
+ *
+ * @return bool True if found, false otherwise.
+ */
+ protected function searchTagAndHashTag($tag, $taglist, $description)
+ {
+ if (in_array($tag, $taglist)) {
+ return true;
+ }
+
+ if (preg_match('/(^| )#'. $tag .'([^'. self::$HASHTAG_CHARS .']|$)/mui', $description) > 0) {
+ return true;
+ }
+
+ return false;
}
/**
* @param bool $casesensitive will convert everything to lowercase if false.
*
* @return array filtered tags string.
- */
+ */
public static function tagsStrToArray($tags, $casesensitive)
{
// We use UTF-8 conversion to handle various graphemes (i.e. cyrillic, or greek)
$tagsOut = $casesensitive ? $tags : mb_convert_case($tags, MB_CASE_LOWER, 'UTF-8');
$tagsOut = str_replace(',', ' ', $tagsOut);
- return array_filter(explode(' ', trim($tagsOut)), 'strlen');
+ return preg_split('/\s+/', $tagsOut, -1, PREG_SPLIT_NO_EMPTY);
}
}
+
+class LinkNotFoundException extends Exception
+{
+ protected $message = 'The link you are trying to reach does not exist or has been deleted.';
+}