An unofficial mirror of the Tiny Tiny RSS, an open-source RSS feed reader and aggregator https://git.tt-rss.org/fox/tt-rss
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tt-rss/plugins/af_psql_trgm/init.php

337 lines
9.8 KiB

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