1) $similarity = 1; if ($min_title_length < 0) $min_title_length = 0; $similarity = sprintf("%.2f", $similarity); $this->host->set($this, "similarity", $similarity); $this->host->set($this, "min_title_length", $min_title_length); echo T_sprintf("Data saved (%s)", $similarity); } function init($host) { $this->host = $host; $host->add_hook($host::HOOK_ARTICLE_FILTER, $this); $host->add_hook($host::HOOK_PREFS_TAB, $this); $host->add_hook($host::HOOK_PREFS_EDIT_FEED, $this); $host->add_hook($host::HOOK_PREFS_SAVE_FEED, $this); //$host->add_hook($host::HOOK_ARTICLE_BUTTON, $this); } /* function get_js() { return file_get_contents(__DIR__ . "/init.js"); } function showrelated() { $id = (int) db_escape_string($_REQUEST['param']); $owner_uid = $_SESSION["uid"]; $result = db_query("SELECT title FROM ttrss_entries, ttrss_user_entries WHERE ref_id = id AND id = $id AND owner_uid = $owner_uid"); $title = db_fetch_result($result, 0, "title"); print "

$title

"; $title = db_escape_string($title); $result = db_query("SELECT id,title,updated FROM ttrss_entries, ttrss_user_entries WHERE owner_uid = $owner_uid AND id = ref_id AND id != $id AND date_entered >= NOW() - INTERVAL '1 day' AND SIMILARITY(title, '$title') >= 0.5 LIMIT 30"); print ""; } */ /* function hook_article_button($line) { return ""; } */ function hook_prefs_tab($args) { if ($args != "prefFeeds") return; print "
"; if (DB_TYPE != "pgsql") { print_error("Database type not supported."); } $result = db_query("select 'similarity'::regproc"); if (db_num_rows($result) == 0) { print_error("pg_trgm extension not found."); } $similarity = $this->host->get($this, "similarity"); $min_title_length = $this->host->get($this, "min_title_length"); if (!$similarity) $similarity = '0.75'; if (!$min_title_length) $min_title_length = '32'; print "
"; print ""; print ""; print ""; print ""; print_notice("PostgreSQL trigram extension returns string similarity as a floating point number (0-1). Setting it too low might produce false positives, zero disables checking."); print "
"; print_notice("Enable the plugin for specific feeds in the feed editor."); print "

" . __("Global settings") . "

"; print ""; print ""; print ""; print ""; print ""; print "
".__("Minimum similarity:")."
".__("Minimum title length:")."
"; print "

"; print "

"; $enabled_feeds = $this->host->get($this, "enabled_feeds"); if (!array($enabled_feeds)) $enabled_feeds = array(); if (count($enabled_feeds) > 0) { print "

" . __("Currently enabled for (click to edit):") . "

"; print ""; } print "
"; } function hook_prefs_edit_feed($feed_id) { print "
".__("Similarity (pg_trgm)")."
"; print "
"; $enabled_feeds = $this->host->get($this, "enabled_feeds"); if (!array($enabled_feeds)) $enabled_feeds = array(); $key = array_search($feed_id, $enabled_feeds); $checked = $key !== FALSE ? "checked" : ""; print "
 "; print "
"; } function hook_prefs_save_feed($feed_id) { $enabled_feeds = $this->host->get($this, "enabled_feeds"); if (!is_array($enabled_feeds)) $enabled_feeds = array(); $enable = checkbox_to_sql_bool($_POST["trgm_similarity_enabled"]) == 'true'; $key = array_search($feed_id, $enabled_feeds); if ($enable) { if ($key === FALSE) { array_push($enabled_feeds, $feed_id); } } else { if ($key !== FALSE) { unset($enabled_feeds[$key]); } } $this->host->set($this, "enabled_feeds", $enabled_feeds); } function hook_article_filter($article) { if (DB_TYPE != "pgsql") return $article; $result = db_query("select 'similarity'::regproc"); if (db_num_rows($result) == 0) return $article; $enabled_feeds = $this->host->get($this, "enabled_feeds"); $key = array_search($article["feed"]["id"], $enabled_feeds); if ($key === FALSE) return $article; $similarity = (float) $this->host->get($this, "similarity"); if ($similarity < 0.01) return $article; $min_title_length = (int) $this->host->get($this, "min_length"); if (mb_strlen($article["title"]) < $min_title_length) return $article; $owner_uid = $article["owner_uid"]; $feed_id = $article["feed"]["id"]; $title_escaped = db_escape_string($article["title"]); $result = db_query("SELECT MAX(SIMILARITY(title, '$title_escaped')) AS ms FROM ttrss_entries, ttrss_user_entries WHERE ref_id = id AND date_entered >= NOW() - interval '1 day' AND owner_uid = $owner_uid"); $similarity_result = db_fetch_result($result, 0, "ms"); //_debug("similarity result: $similarity_result"); if ($similarity_result >= $similarity) { $article["force_catchup"] = true; } return $article; } function api_version() { return 2; } } ?>