365 lines
10 KiB
PHP
365 lines
10 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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private $default_similarity = 0.75;
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private $default_min_length = 32;
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function about() {
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return array(null,
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"Marks similar articles as read (requires pg_trgm)",
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"fox");
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}
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function save() {
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$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) $_REQUEST['id'];
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$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 = $row['title'];
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print "<p>$title</p>";
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$sth = $this->pdo->prepare("SELECT ttrss_entries.id AS id,
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feed_id,
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ttrss_entries.title AS title,
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updated, link,
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ttrss_feeds.title AS feed_title,
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SIMILARITY(ttrss_entries.title, ?) AS sm
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FROM
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ttrss_entries, ttrss_user_entries LEFT JOIN ttrss_feeds ON (ttrss_feeds.id = feed_id)
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WHERE
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ttrss_entries.id = ref_id AND
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ttrss_user_entries.owner_uid = ? AND
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ttrss_entries.id != ? AND
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date_entered >= NOW() - INTERVAL '2 weeks'
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ORDER BY
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sm DESC, date_entered DESC
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LIMIT 10");
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$sth->execute([$title, $owner_uid, $id]);
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print "<ul class='panel panel-scrollable'>";
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while ($line = $sth->fetch()) {
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print "<li style='display : flex'>";
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print "<i class='material-icons'>bookmark_outline</i>";
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$sm = sprintf("%.2f", $line['sm']);
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$article_link = htmlspecialchars($line["link"]);
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print "<div style='flex-grow : 2'>";
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print " <a target=\"_blank\" rel=\"noopener noreferrer\" href=\"$article_link\">".
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$line["title"]."</a>";
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print " (<a href=\"#\" onclick=\"Feeds.open({feed:".$line["feed_id"]."})\">".
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htmlspecialchars($line["feed_title"])."</a>)";
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print " — $sm";
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print "</div>";
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print "<div style='text-align : right' class='text-muted'>" . TimeHelper::smart_date_time(strtotime($line["updated"])) . "</div>";
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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 "<footer class='text-center'>
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<button dojoType='dijit.form.Button' type='submit' class='alt-primary'>".__('Close this window')."</button>
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</footer>";
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}
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function hook_article_button($line) {
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return "<i style=\"cursor : pointer\" class='material-icons'
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onclick=\"Plugins.Psql_Trgm.showRelated(".$line["id"].")\"
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title='".__('Show related articles')."'>bookmark_outline</i>";
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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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$similarity = $this->host->get($this, "similarity", $this->default_similarity);
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$min_title_length = $this->host->get($this, "min_title_length", $this->default_min_length);
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$enable_globally = sql_bool_to_bool($this->host->get($this, "enable_globally"));
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?>
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<div dojoType="dijit.layout.AccordionPane"
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title="<i class='material-icons'>extension</i> <?= __('Mark similar articles as read (af_psql_trgm)') ?>">
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<?php
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if (Config::get(Config::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 || !$res->fetch()) {
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print_error("pg_trgm extension not found.");
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}
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} ?>
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<form dojoType="dijit.form.Form">
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<?= \Controls\pluginhandler_tags($this, "save") ?>
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<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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Notify.progress('Saving data...', true);
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xhr.post("backend.php", this.getValues(), (reply) => {
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Notify.info(reply);
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})
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}
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</script>
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<?= format_notice("Enable for specific feeds in the feed editor.") ?>
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<fieldset>
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<label><?= __("Minimum similarity:") ?></label>
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<input dojoType="dijit.form.NumberSpinner"
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placeholder="<?= $this->default_similarity ?>"
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id='psql_trgm_similarity'
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required="1"
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name="similarity" value="<?= htmlspecialchars($similarity) ?>">
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<div dojoType='dijit.Tooltip' connectId='psql_trgm_similarity' position='below'>
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<?= __("PostgreSQL trigram extension returns string similarity as a floating point number (0-1). Setting it too low might produce false positives, zero disables checking.") ?>
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</div>
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</fieldset>
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<fieldset>
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<label><?= __("Minimum title length:") ?></label>
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<input dojoType="dijit.form.NumberSpinner"
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placeholder="<?= $this->default_min_length ?>"
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required="1"
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name="min_title_length" value="<?= htmlspecialchars($min_title_length) ?>">
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</fieldset>
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<fieldset>
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<label class='checkbox'>
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<?= \Controls\checkbox_tag("enable_globally", $enable_globally) ?>
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<?= __("Enable for all feeds.") ?>
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</label>
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</fieldset>
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<hr/>
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<?= \Controls\submit_tag(__("Save")) ?>
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</form>
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<?php
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/* cleanup */
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$enabled_feeds = $this->filter_unknown_feeds(
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$this->get_stored_array("enabled_feeds"));
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$this->host->set($this, "enabled_feeds", $enabled_feeds);
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?>
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<?php if (count($enabled_feeds) > 0) { ?>
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<hr/>
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<h3><?= __("Currently enabled for (click to edit):") ?></h3>
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<ul class="panel panel-scrollable list list-unstyled">
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<?php foreach ($enabled_feeds as $f) { ?>
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<li>
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<i class='material-icons'>rss_feed</i>
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<a href='#' onclick="CommonDialogs.editFeed(<?= $f ?>)">
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<?= Feeds::_get_title($f) ?>
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</a>
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</li>
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<?php } ?>
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</ul>
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<?php } ?>
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</div>
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<?php
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}
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function hook_prefs_edit_feed($feed_id) {
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$enabled_feeds = $this->get_stored_array("enabled_feeds");
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?>
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<header><?= __("Similarity (af_psql_trgm)") ?></header>
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<section>
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<fieldset>
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<label class="checkbox">
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<?= \Controls\checkbox_tag("trgm_similarity_enabled", in_array($feed_id, $enabled_feeds)) ?>
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<?= __('Mark similar articles as read') ?>
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</label>
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</fieldset>
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</section>
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</section>
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<?php
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}
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function hook_prefs_save_feed($feed_id) {
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$enabled_feeds = $this->get_stored_array("enabled_feeds");
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$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 (Config::get(Config::DB_TYPE) != "pgsql") return $article;
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$res = $this->pdo->query("select 'similarity'::regproc");
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if (!$res || !$res->fetch()) return $article;
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$enable_globally = $this->host->get($this, "enable_globally");
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if (!$enable_globally &&
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!in_array($article["feed"]["id"],
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$this->get_stored_array("enabled_feeds"))) {
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return $article;
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}
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$similarity = (float) $this->host->get($this, "similarity", $this->default_similarity);
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if ($similarity < 0.01) {
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Debug::log("af_psql_trgm: similarity is set too low ($similarity)", Debug::$LOG_EXTENDED);
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return $article;
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}
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$min_title_length = (int) $this->host->get($this, "min_title_length", $this->default_min_length);
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if (mb_strlen($article["title"]) < $min_title_length) {
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Debug::log("af_psql_trgm: article title is too short (min: $min_title_length)", Debug::$LOG_EXTENDED);
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return $article;
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}
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$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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// this seems to be no longer the case (fixed in upstream?)
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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::log("af_psql_trgm: num equals: $nequal", Debug::$LOG_EXTENDED);
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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::log("af_psql_trgm: similarity result for $title_escaped: $similarity_result", Debug::$LOG_EXTENDED);
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if ($similarity_result >= $similarity) {
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Debug::log("af_psql_trgm: marking article as read ($similarity_result >= $similarity)", Debug::$LOG_EXTENDED);
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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 $tmp;
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}
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private function get_stored_array($name) {
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$tmp = $this->host->get($this, $name);
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if (!is_array($tmp)) $tmp = [];
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return $tmp;
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}
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}
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