ttrss/plugins/af_psql_trgm/init.php

209 lines
6.1 KiB
PHP

<?php
class Af_Psql_Trgm extends Plugin {
private $host;
function about() {
return array(1.0,
"Marks similar articles as read (requires pg_trgm)",
"fox");
}
function save() {
$similarity = (float) db_escape_string($_POST["similarity"]);
$min_title_length = (int) db_escape_string($_POST["min_title_length"]);
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);
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, $this);
}
function hook_prefs_tab($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.");
}
$result = db_query("select 'similarity'::regproc");
if (db_num_rows($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) $min_title_length = '32';
print "<form dojoType=\"dijit.form.Form\">";
print "<script type=\"dojo/method\" event=\"onSubmit\" args=\"evt\">
evt.preventDefault();
if (this.validate()) {
console.log(dojo.objectToQuery(this.getValues()));
new Ajax.Request('backend.php', {
parameters: dojo.objectToQuery(this.getValues()),
onComplete: function(transport) {
notify_info(transport.responseText);
}
});
//this.reset();
}
</script>";
print "<input dojoType=\"dijit.form.TextBox\" style=\"display : none\" name=\"op\" value=\"pluginhandler\">";
print "<input dojoType=\"dijit.form.TextBox\" style=\"display : none\" name=\"method\" value=\"save\">";
print "<input dojoType=\"dijit.form.TextBox\" style=\"display : none\" name=\"plugin\" value=\"af_psql_trgm\">";
print_notice("PostgreSQL trigram extension returns string similarity as a floating point number (0-1). Setting it too low might produce false positives, zero disables checking.");
print "<br/>";
print_notice("Enable the plugin for specific feeds in the feed editor.");
print "<h3>" . __("Global settings") . "</h3>";
print "<table>";
print "<tr><td width=\"40%\">".__("Minimum similarity:")."</td>";
print "<td>
<input dojoType=\"dijit.form.ValidationTextBox\"
placeholder=\"0.75\"
required=\"1\" name=\"similarity\" value=\"$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 "</table>";
print "<p><button dojoType=\"dijit.form.Button\" type=\"submit\">".
__("Save")."</button>";
print "</form>";
$enabled_feeds = $this->host->get($this, "enabled_feeds");
if (!array($enabled_feeds)) $enabled_feeds = array();
if (count($enabled_feeds) > 0) {
print "<h3>" . __("Currently enabled for (click to edit):") . "</h3>";
print "<ul class=\"browseFeedList\" style=\"border-width : 1px\">";
foreach ($enabled_feeds as $f) {
print "<li>" .
"<img src='images/pub_set.png'
style='vertical-align : middle'> <a href='#'
onclick='editFeed($f)'>".
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"]) == '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;
}
}
?>