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337 lines
9.7 KiB
PHP
337 lines
9.7 KiB
PHP
<?php
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class Af_Psql_Trgm extends Plugin {
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/* @var PluginHost $host */
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private $host;
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function about() {
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return array(1.0,
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"Marks similar articles as read (requires pg_trgm)",
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"fox");
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}
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function save() {
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$similarity = (float) $_POST["similarity"];
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$min_title_length = (int) $_POST["min_title_length"];
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$enable_globally = checkbox_to_sql_bool($_POST["enable_globally"]);
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if ($similarity < 0) $similarity = 0;
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if ($similarity > 1) $similarity = 1;
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if ($min_title_length < 0) $min_title_length = 0;
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$similarity = sprintf("%.2f", $similarity);
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$this->host->set($this, "similarity", $similarity);
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$this->host->set($this, "min_title_length", $min_title_length);
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$this->host->set($this, "enable_globally", $enable_globally);
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echo T_sprintf("Data saved (%s, %d)", $similarity, $enable_globally);
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}
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function init($host) {
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$this->host = $host;
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$host->add_hook($host::HOOK_ARTICLE_FILTER, $this);
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$host->add_hook($host::HOOK_PREFS_TAB, $this);
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$host->add_hook($host::HOOK_PREFS_EDIT_FEED, $this);
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$host->add_hook($host::HOOK_PREFS_SAVE_FEED, $this);
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$host->add_hook($host::HOOK_ARTICLE_BUTTON, $this);
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}
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function get_js() {
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return file_get_contents(__DIR__ . "/init.js");
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}
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function showrelated() {
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$id = (int) $_REQUEST['param'];
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$owner_uid = $_SESSION["uid"];
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$sth = $this->pdo->prepare("SELECT title FROM ttrss_entries, ttrss_user_entries
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WHERE ref_id = id AND id = ? AND owner_uid = ?");
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$sth->execute([$id, $owner_uid]);
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if ($row = $sth->fetch()) {
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$title = $row['title'];
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print "<h2>$title</h2>";
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$sth = $this->pdo->prepare("SELECT ttrss_entries.id AS id,
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feed_id,
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ttrss_entries.title AS title,
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updated, link,
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ttrss_feeds.title AS feed_title,
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SIMILARITY(ttrss_entries.title, '$title') AS sm
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FROM
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ttrss_entries, ttrss_user_entries LEFT JOIN ttrss_feeds ON (ttrss_feeds.id = feed_id)
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WHERE
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ttrss_entries.id = ref_id AND
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ttrss_user_entries.owner_uid = ? AND
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ttrss_entries.id != ? AND
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date_entered >= NOW() - INTERVAL '2 weeks'
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ORDER BY
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sm DESC, date_entered DESC
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LIMIT 10");
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$sth->execute([$owner_uid, $id]);
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print "<ul class=\"browseFeedList\" style=\"border-width : 1px\">";
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while ($line = $sth->fetch()) {
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print "<li>";
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print "<div class='insensitive small' style='margin-left : 20px; float : right'>" .
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smart_date_time(strtotime($line["updated"]))
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. "</div>";
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$sm = sprintf("%.2f", $line['sm']);
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print "<img src='images/score_high.png' title='$sm'
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style='vertical-align : middle'>";
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$article_link = htmlspecialchars($line["link"]);
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print " <a target=\"_blank\" rel=\"noopener noreferrer\" href=\"$article_link\">".
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$line["title"]."</a>";
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print " (<a href=\"#\" onclick=\"viewfeed({feed:".$line["feed_id"]."})\">".
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htmlspecialchars($line["feed_title"])."</a>)";
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print " <span class='insensitive'>($sm)</span>";
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print "</li>";
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}
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print "</ul>";
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}
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print "<div style='text-align : center'>";
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print "<button dojoType=\"dijit.form.Button\" onclick=\"dijit.byId('trgmRelatedDlg').hide()\">".__('Close this window')."</button>";
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print "</div>";
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}
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function hook_article_button($line) {
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return "<img src=\"plugins/af_psql_trgm/button.png\"
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style=\"cursor : pointer\" style=\"cursor : pointer\"
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onclick=\"showTrgmRelated(".$line["id"].")\"
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class='tagsPic' title='".__('Show related articles')."'>";
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}
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function hook_prefs_tab($args) {
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if ($args != "prefFeeds") return;
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print "<div dojoType=\"dijit.layout.AccordionPane\" title=\"".__('Mark similar articles as read')."\">";
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if (DB_TYPE != "pgsql") {
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print_error("Database type not supported.");
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} else {
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$res = $this->pdo->query("select 'similarity'::regproc");
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if (!$res->fetch()) {
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print_error("pg_trgm extension not found.");
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}
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$similarity = $this->host->get($this, "similarity");
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$min_title_length = $this->host->get($this, "min_title_length");
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$enable_globally = $this->host->get($this, "enable_globally");
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if (!$similarity) $similarity = '0.75';
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if (!$min_title_length) $min_title_length = '32';
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print "<form dojoType=\"dijit.form.Form\">";
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print "<script type=\"dojo/method\" event=\"onSubmit\" args=\"evt\">
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evt.preventDefault();
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if (this.validate()) {
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console.log(dojo.objectToQuery(this.getValues()));
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new Ajax.Request('backend.php', {
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parameters: dojo.objectToQuery(this.getValues()),
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onComplete: function(transport) {
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notify_info(transport.responseText);
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}
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});
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//this.reset();
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}
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</script>";
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print_hidden("op", "pluginhandler");
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print_hidden("method", "save");
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print_hidden("plugin", "af_psql_trgm");
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print "<p>" . __("PostgreSQL trigram extension returns string similarity as a floating point number (0-1). Setting it too low might produce false positives, zero disables checking.") . "</p>";
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print_notice("Enable the plugin for specific feeds in the feed editor.");
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print "<h3>" . __("Global settings") . "</h3>";
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print "<table>";
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print "<tr><td width=\"40%\">" . __("Minimum similarity:") . "</td>";
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print "<td>
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<input dojoType=\"dijit.form.ValidationTextBox\"
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placeholder=\"0.75\"
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required=\"1\" name=\"similarity\" value=\"$similarity\"></td></tr>";
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print "<tr><td width=\"40%\">" . __("Minimum title length:") . "</td>";
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print "<td>
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<input dojoType=\"dijit.form.ValidationTextBox\"
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placeholder=\"32\"
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required=\"1\" name=\"min_title_length\" value=\"$min_title_length\"></td></tr>";
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print "<tr><td width=\"40%\">" . __("Enable for all feeds:") . "</td>";
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print "<td>";
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print_checkbox("enable_globally", $enable_globally);
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print "</td></tr>";
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print "</table>";
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print "<p>"; print_button("submit", __("Save"));
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print "</form>";
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$enabled_feeds = $this->host->get($this, "enabled_feeds");
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if (!array($enabled_feeds)) $enabled_feeds = array();
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$enabled_feeds = $this->filter_unknown_feeds($enabled_feeds);
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$this->host->set($this, "enabled_feeds", $enabled_feeds);
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if (count($enabled_feeds) > 0) {
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print "<h3>" . __("Currently enabled for (click to edit):") . "</h3>";
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print "<ul class=\"browseFeedList\" style=\"border-width : 1px\">";
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foreach ($enabled_feeds as $f) {
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print "<li>" .
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"<img src='images/pub_set.png'
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style='vertical-align : middle'> <a href='#'
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onclick='editFeed($f)'>" .
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Feeds::getFeedTitle($f) . "</a></li>";
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}
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print "</ul>";
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}
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}
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print "</div>";
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}
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function hook_prefs_edit_feed($feed_id) {
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print "<div class=\"dlgSec\">".__("Similarity (pg_trgm)")."</div>";
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print "<div class=\"dlgSecCont\">";
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$enabled_feeds = $this->host->get($this, "enabled_feeds");
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if (!array($enabled_feeds)) $enabled_feeds = array();
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$key = array_search($feed_id, $enabled_feeds);
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$checked = $key !== FALSE ? "checked" : "";
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print "<hr/><input dojoType=\"dijit.form.CheckBox\" type=\"checkbox\" id=\"trgm_similarity_enabled\"
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name=\"trgm_similarity_enabled\"
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$checked> <label for=\"trgm_similarity_enabled\">".__('Mark similar articles as read')."</label>";
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print "</div>";
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}
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function hook_prefs_save_feed($feed_id) {
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$enabled_feeds = $this->host->get($this, "enabled_feeds");
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if (!is_array($enabled_feeds)) $enabled_feeds = array();
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$enable = checkbox_to_sql_bool($_POST["trgm_similarity_enabled"]);
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$key = array_search($feed_id, $enabled_feeds);
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if ($enable) {
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if ($key === FALSE) {
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array_push($enabled_feeds, $feed_id);
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}
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} else {
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if ($key !== FALSE) {
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unset($enabled_feeds[$key]);
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}
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}
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$this->host->set($this, "enabled_feeds", $enabled_feeds);
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}
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function hook_article_filter($article) {
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if (DB_TYPE != "pgsql") return $article;
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$res = $this->pdo->query("select 'similarity'::regproc");
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if (!$res->fetch()) return $article;
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$enable_globally = $this->host->get($this, "enable_globally");
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if (!$enable_globally) {
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$enabled_feeds = $this->host->get($this, "enabled_feeds");
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$key = array_search($article["feed"]["id"], $enabled_feeds);
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if ($key === FALSE) return $article;
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}
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$similarity = (float) $this->host->get($this, "similarity");
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if ($similarity < 0.01) return $article;
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$min_title_length = (int) $this->host->get($this, "min_title_length");
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if (mb_strlen($article["title"]) < $min_title_length) return $article;
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$owner_uid = $article["owner_uid"];
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$entry_guid = $article["guid_hashed"];
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$title_escaped = $article["title"];
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// trgm does not return similarity=1 for completely equal strings
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$sth = $this->pdo->prepare("SELECT COUNT(id) AS nequal
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FROM ttrss_entries, ttrss_user_entries WHERE ref_id = id AND
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date_entered >= NOW() - interval '3 days' AND
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title = ? AND
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guid != ? AND
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owner_uid = ?");
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$sth->execute([$title_escaped, $entry_guid, $owner_uid]);
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$row = $sth->fetch();
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$nequal = $row['nequal'];
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_debug("af_psql_trgm: num equals: $nequal");
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if ($nequal != 0) {
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$article["force_catchup"] = true;
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return $article;
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}
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$sth = $this->pdo->prepare("SELECT MAX(SIMILARITY(title, ?)) AS ms
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FROM ttrss_entries, ttrss_user_entries WHERE ref_id = id AND
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date_entered >= NOW() - interval '1 day' AND
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guid != ? AND
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owner_uid = ?");
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$sth->execute([$title_escaped, $entry_guid, $owner_uid]);
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$row = $sth->fetch();
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$similarity_result = $row['ms'];
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_debug("af_psql_trgm: similarity result: $similarity_result");
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if ($similarity_result >= $similarity) {
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$article["force_catchup"] = true;
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}
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return $article;
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}
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function api_version() {
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return 2;
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}
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private function filter_unknown_feeds($enabled_feeds) {
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$tmp = array();
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foreach ($enabled_feeds as $feed) {
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$sth = $this->pdo->prepare("SELECT id FROM ttrss_feeds WHERE id = ? AND owner_uid = ?");
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$sth->execute([$feed, $_SESSION['uid']]);
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if ($row = $sth->fetch()) {
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array_push($tmp, $feed);
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}
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}
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return $tmp;
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}
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} |