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ttrss/classes/rssutils.php

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<?php
class RSSUtils {
static function calculate_article_hash($article, $pluginhost) {
$tmp = "";
foreach ($article as $k => $v) {
if ($k != "feed" && isset($v)) {
$x = strip_tags(is_array($v) ? implode(",", $v) : $v);
//_debug("$k:" . sha1($x) . ":" . htmlspecialchars($x), true);
$tmp .= sha1("$k:" . sha1($x));
}
}
return sha1(implode(",", $pluginhost->get_plugin_names()) . $tmp);
}
static function update_feedbrowser_cache() {
$result = db_query("SELECT feed_url, site_url, title, COUNT(id) AS subscribers
FROM ttrss_feeds WHERE feed_url NOT IN (SELECT feed_url FROM ttrss_feeds
WHERE private IS true OR auth_login != '' OR auth_pass != '' OR feed_url LIKE '%:%@%/%')
GROUP BY feed_url, site_url, title ORDER BY subscribers DESC LIMIT 1000");
db_query("BEGIN");
db_query("DELETE FROM ttrss_feedbrowser_cache");
$count = 0;
while ($line = db_fetch_assoc($result)) {
$subscribers = db_escape_string($line["subscribers"]);
$feed_url = db_escape_string($line["feed_url"]);
$title = db_escape_string($line["title"]);
$site_url = db_escape_string($line["site_url"]);
$tmp_result = db_query("SELECT subscribers FROM
ttrss_feedbrowser_cache WHERE feed_url = '$feed_url'");
if (db_num_rows($tmp_result) == 0) {
db_query("INSERT INTO ttrss_feedbrowser_cache
(feed_url, site_url, title, subscribers) VALUES ('$feed_url',
'$site_url', '$title', '$subscribers')");
++$count;
}
}
db_query("COMMIT");
return $count;
}
static function update_daemon_common($limit = DAEMON_FEED_LIMIT, $debug = true) {
$schema_version = get_schema_version();
if ($schema_version != SCHEMA_VERSION) {
die("Schema version is wrong, please upgrade the database.\n");
}
if (!SINGLE_USER_MODE && DAEMON_UPDATE_LOGIN_LIMIT > 0) {
if (DB_TYPE == "pgsql") {
$login_thresh_qpart = "AND ttrss_users.last_login >= NOW() - INTERVAL '".DAEMON_UPDATE_LOGIN_LIMIT." days'";
} else {
$login_thresh_qpart = "AND ttrss_users.last_login >= DATE_SUB(NOW(), INTERVAL ".DAEMON_UPDATE_LOGIN_LIMIT." DAY)";
}
} else {
$login_thresh_qpart = "";
}
if (DB_TYPE == "pgsql") {
$update_limit_qpart = "AND ((
ttrss_feeds.update_interval = 0
AND ttrss_user_prefs.value != '-1'
AND ttrss_feeds.last_updated < NOW() - CAST((ttrss_user_prefs.value || ' minutes') AS INTERVAL)
) OR (
ttrss_feeds.update_interval > 0
AND ttrss_feeds.last_updated < NOW() - CAST((ttrss_feeds.update_interval || ' minutes') AS INTERVAL)
) OR (ttrss_feeds.last_updated IS NULL
AND ttrss_user_prefs.value != '-1')
OR (last_updated = '1970-01-01 00:00:00'
AND ttrss_user_prefs.value != '-1'))";
} else {
$update_limit_qpart = "AND ((
ttrss_feeds.update_interval = 0
AND ttrss_user_prefs.value != '-1'
AND ttrss_feeds.last_updated < DATE_SUB(NOW(), INTERVAL CONVERT(ttrss_user_prefs.value, SIGNED INTEGER) MINUTE)
) OR (
ttrss_feeds.update_interval > 0
AND ttrss_feeds.last_updated < DATE_SUB(NOW(), INTERVAL ttrss_feeds.update_interval MINUTE)
) OR (ttrss_feeds.last_updated IS NULL
AND ttrss_user_prefs.value != '-1')
OR (last_updated = '1970-01-01 00:00:00'
AND ttrss_user_prefs.value != '-1'))";
}
// Test if feed is currently being updated by another process.
if (DB_TYPE == "pgsql") {
$updstart_thresh_qpart = "AND (ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < NOW() - INTERVAL '10 minutes')";
} else {
$updstart_thresh_qpart = "AND (ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < DATE_SUB(NOW(), INTERVAL 10 MINUTE))";
}
$query_limit = $limit ? sprintf("LIMIT %d", $limit) : "";
// Update the least recently updated feeds first
$query_order = "ORDER BY last_updated";
if (DB_TYPE == "pgsql") $query_order .= " NULLS FIRST";
$query = "SELECT DISTINCT ttrss_feeds.feed_url, ttrss_feeds.last_updated
FROM
ttrss_feeds, ttrss_users, ttrss_user_prefs
WHERE
ttrss_feeds.owner_uid = ttrss_users.id
AND ttrss_user_prefs.profile IS NULL
AND ttrss_users.id = ttrss_user_prefs.owner_uid
AND ttrss_user_prefs.pref_name = 'DEFAULT_UPDATE_INTERVAL'
$login_thresh_qpart $update_limit_qpart
$updstart_thresh_qpart
$query_order $query_limit";
$result = db_query($query);
if ($debug) _debug(sprintf("Scheduled %d feeds to update...", db_num_rows($result)));
$feeds_to_update = array();
while ($line = db_fetch_assoc($result)) {
array_push($feeds_to_update, $line['feed_url']);
}
// Update last_update_started before actually starting the batch
// in order to minimize collision risk for parallel daemon tasks
if (count($feeds_to_update) > 0) {
$feeds_quoted = array_map(function ($s) { return "'" . db_escape_string($s) . "'"; }, $feeds_to_update);
db_query(sprintf("UPDATE ttrss_feeds SET last_update_started = NOW()
WHERE feed_url IN (%s)", implode(',', $feeds_quoted)));
}
$nf = 0;
$bstarted = microtime(true);
$batch_owners = array();
foreach ($feeds_to_update as $feed) {
if($debug) _debug("Base feed: $feed");
//update_rss_feed($line["id"], true);
// since we have the data cached, we can deal with other feeds with the same url
$tmp_result = db_query("SELECT DISTINCT ttrss_feeds.id,last_updated,ttrss_feeds.owner_uid
FROM ttrss_feeds, ttrss_users, ttrss_user_prefs WHERE
ttrss_user_prefs.owner_uid = ttrss_feeds.owner_uid AND
ttrss_users.id = ttrss_user_prefs.owner_uid AND
ttrss_user_prefs.pref_name = 'DEFAULT_UPDATE_INTERVAL' AND
ttrss_user_prefs.profile IS NULL AND
feed_url = '".db_escape_string($feed)."'
$update_limit_qpart
$login_thresh_qpart
ORDER BY ttrss_feeds.id $query_limit");
if (db_num_rows($tmp_result) > 0) {
while ($tline = db_fetch_assoc($tmp_result)) {
if ($debug) _debug(" => " . $tline["last_updated"] . ", " . $tline["id"] . " " . $tline["owner_uid"]);
if (array_search($tline["owner_uid"], $batch_owners) === FALSE)
array_push($batch_owners, $tline["owner_uid"]);
$fstarted = microtime(true);
RSSUtils::update_rss_feed($tline["id"], true, false);
_debug_suppress(false);
_debug(sprintf(" %.4f (sec)", microtime(true) - $fstarted));
++$nf;
}
}
}
if ($nf > 0) {
_debug(sprintf("Processed %d feeds in %.4f (sec), %.4f (sec/feed avg)", $nf,
microtime(true) - $bstarted, (microtime(true) - $bstarted) / $nf));
}
foreach ($batch_owners as $owner_uid) {
_debug("Running housekeeping tasks for user $owner_uid...");
RSSUtils::housekeeping_user($owner_uid);
}
// Send feed digests by email if needed.
Digest::send_headlines_digests($debug);
return $nf;
}
// this is used when subscribing
static function set_basic_feed_info($feed) {
$feed = db_escape_string($feed);
$result = db_query("SELECT owner_uid,feed_url,auth_pass,auth_login,auth_pass_encrypted
FROM ttrss_feeds WHERE id = '$feed'");
$owner_uid = db_fetch_result($result, 0, "owner_uid");
$auth_pass_encrypted = sql_bool_to_bool(db_fetch_result($result,
0, "auth_pass_encrypted"));
$auth_login = db_fetch_result($result, 0, "auth_login");
$auth_pass = db_fetch_result($result, 0, "auth_pass");
if ($auth_pass_encrypted && function_exists("mcrypt_decrypt")) {
require_once "crypt.php";
$auth_pass = decrypt_string($auth_pass);
}
$fetch_url = db_fetch_result($result, 0, "feed_url");
$pluginhost = new PluginHost();
$user_plugins = get_pref("_ENABLED_PLUGINS", $owner_uid);
$pluginhost->load(PLUGINS, PluginHost::KIND_ALL);
$pluginhost->load($user_plugins, PluginHost::KIND_USER, $owner_uid);
$pluginhost->load_data();
$basic_info = array();
foreach ($pluginhost->get_hooks(PluginHost::HOOK_FEED_BASIC_INFO) as $plugin) {
$basic_info = $plugin->hook_feed_basic_info($basic_info, $fetch_url, $owner_uid, $feed, $auth_login, $auth_pass);
}
if (!$basic_info) {
$feed_data = fetch_file_contents($fetch_url, false,
$auth_login, $auth_pass, false,
FEED_FETCH_TIMEOUT,
0);
global $fetch_curl_used;
if (!$fetch_curl_used) {
$tmp = @gzdecode($feed_data);
if ($tmp) $feed_data = $tmp;
}
$feed_data = trim($feed_data);
$rss = new FeedParser($feed_data);
$rss->init();
if (!$rss->error()) {
$basic_info = array(
'title' => db_escape_string(mb_substr($rss->get_title(), 0, 199)),
'site_url' => db_escape_string(mb_substr(rewrite_relative_url($fetch_url, $rss->get_link()), 0, 245))
);
}
}
if ($basic_info && is_array($basic_info)) {
$result = db_query("SELECT title, site_url FROM ttrss_feeds WHERE id = '$feed'");
$registered_title = db_fetch_result($result, 0, "title");
$orig_site_url = db_fetch_result($result, 0, "site_url");
if ($basic_info['title'] && (!$registered_title || $registered_title == "[Unknown]")) {
db_query("UPDATE ttrss_feeds SET
title = '${basic_info['title']}' WHERE id = '$feed'");
}
if ($basic_info['site_url'] && $orig_site_url != $basic_info['site_url']) {
db_query("UPDATE ttrss_feeds SET
site_url = '${basic_info['site_url']}' WHERE id = '$feed'");
}
}
}
/**
* @SuppressWarnings(PHPMD.UnusedFormalParameter)
*/
static function update_rss_feed($feed, $no_cache = false) {
$debug_enabled = defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug'];
_debug_suppress(!$debug_enabled);
_debug("start", $debug_enabled);
$result = db_query("SELECT title FROM ttrss_feeds
WHERE id = '$feed'");
if (db_num_rows($result) == 0) {
_debug("feed $feed NOT FOUND/SKIPPED", $debug_enabled);
user_error("Attempt to update unknown/invalid feed $feed", E_USER_WARNING);
return false;
}
$title = db_fetch_result($result, 0, "title");
// feed was batch-subscribed or something, we need to get basic info
// this is not optimal currently as it fetches stuff separately TODO: optimize
if ($title == "[Unknown]") {
_debug("setting basic feed info for $feed...");
RSSUtils::set_basic_feed_info($feed);
}
$result = db_query("SELECT id,update_interval,auth_login,
feed_url,auth_pass,cache_images,
mark_unread_on_update, owner_uid,
auth_pass_encrypted, feed_language,
last_modified,
".SUBSTRING_FOR_DATE."(last_unconditional, 1, 19) AS last_unconditional
FROM ttrss_feeds WHERE id = '$feed'");
$owner_uid = db_fetch_result($result, 0, "owner_uid");
$mark_unread_on_update = sql_bool_to_bool(db_fetch_result($result,
0, "mark_unread_on_update"));
$auth_pass_encrypted = sql_bool_to_bool(db_fetch_result($result,
0, "auth_pass_encrypted"));
db_query("UPDATE ttrss_feeds SET last_update_started = NOW()
WHERE id = '$feed'");
$auth_login = db_fetch_result($result, 0, "auth_login");
$auth_pass = db_fetch_result($result, 0, "auth_pass");
if ($auth_pass_encrypted && function_exists("mcrypt_decrypt")) {
require_once "crypt.php";
$auth_pass = decrypt_string($auth_pass);
}
$stored_last_modified = db_fetch_result($result, 0, "last_modified");
$last_unconditional = db_fetch_result($result, 0, "last_unconditional");
$cache_images = sql_bool_to_bool(db_fetch_result($result, 0, "cache_images"));
$fetch_url = db_fetch_result($result, 0, "feed_url");
$feed_language = db_escape_string(mb_strtolower(db_fetch_result($result, 0, "feed_language")));
if (!$feed_language) $feed_language = 'english';
$feed = db_escape_string($feed);
$date_feed_processed = date('Y-m-d H:i');
$cache_filename = CACHE_DIR . "/simplepie/" . sha1($fetch_url) . ".xml";
$pluginhost = new PluginHost();
$pluginhost->set_debug($debug_enabled);
$user_plugins = get_pref("_ENABLED_PLUGINS", $owner_uid);
$pluginhost->load(PLUGINS, PluginHost::KIND_ALL);
$pluginhost->load($user_plugins, PluginHost::KIND_USER, $owner_uid);
$pluginhost->load_data();
$rss_hash = false;
$force_refetch = isset($_REQUEST["force_refetch"]);
$feed_data = "";
foreach ($pluginhost->get_hooks(PluginHost::HOOK_FETCH_FEED) as $plugin) {
$feed_data = $plugin->hook_fetch_feed($feed_data, $fetch_url, $owner_uid, $feed, 0, $auth_login, $auth_pass);
}
// try cache
if (!$feed_data &&
file_exists($cache_filename) &&
is_readable($cache_filename) &&
!$auth_login && !$auth_pass &&
filemtime($cache_filename) > time() - 30) {
_debug("using local cache [$cache_filename].", $debug_enabled);
@$feed_data = file_get_contents($cache_filename);
if ($feed_data) {
$rss_hash = sha1($feed_data);
}
} else {
_debug("local cache will not be used for this feed", $debug_enabled);
}
global $fetch_last_modified;
// fetch feed from source
if (!$feed_data) {
_debug("last unconditional update request: $last_unconditional");
if (ini_get("open_basedir") && function_exists("curl_init")) {
_debug("not using CURL due to open_basedir restrictions");
}
if (time() - strtotime($last_unconditional) > MAX_CONDITIONAL_INTERVAL) {
_debug("maximum allowed interval for conditional requests exceeded, forcing refetch");
$force_refetch = true;
} else {
_debug("stored last modified for conditional request: $stored_last_modified", $debug_enabled);
}
_debug("fetching [$fetch_url] (force_refetch: $force_refetch)...", $debug_enabled);
$feed_data = fetch_file_contents([
"url" => $fetch_url,
"login" => $auth_login,
"pass" => $auth_pass,
"timeout" => $no_cache ? FEED_FETCH_NO_CACHE_TIMEOUT : FEED_FETCH_TIMEOUT,
"last_modified" => $force_refetch ? "" : $stored_last_modified
]);
global $fetch_curl_used;
if (!$fetch_curl_used) {
$tmp = @gzdecode($feed_data);
if ($tmp) $feed_data = $tmp;
}
$feed_data = trim($feed_data);
_debug("fetch done.", $debug_enabled);
_debug("source last modified: " . $fetch_last_modified, $debug_enabled);
if ($feed_data && $fetch_last_modified != $stored_last_modified) {
$last_modified_escaped = db_escape_string(substr($fetch_last_modified, 0, 245));
db_query("UPDATE ttrss_feeds SET last_modified = '$last_modified_escaped' WHERE id = '$feed'");
}
// cache vanilla feed data for re-use
if ($feed_data && !$auth_pass && !$auth_login && is_writable(CACHE_DIR . "/simplepie")) {
$new_rss_hash = sha1($feed_data);
if ($new_rss_hash != $rss_hash) {
_debug("saving $cache_filename", $debug_enabled);
@file_put_contents($cache_filename, $feed_data);
}
}
}
if (!$feed_data) {
global $fetch_last_error;
global $fetch_last_error_code;
_debug("unable to fetch: $fetch_last_error [$fetch_last_error_code]", $debug_enabled);
$error_escaped = '';
// If-Modified-Since
if ($fetch_last_error_code != 304) {
$error_escaped = db_escape_string($fetch_last_error);
} else {
_debug("source claims data not modified, nothing to do.", $debug_enabled);
}
db_query(
"UPDATE ttrss_feeds SET last_error = '$error_escaped',
last_updated = NOW() WHERE id = '$feed'");
return;
}
foreach ($pluginhost->get_hooks(PluginHost::HOOK_FEED_FETCHED) as $plugin) {
$feed_data = $plugin->hook_feed_fetched($feed_data, $fetch_url, $owner_uid, $feed);
}
$rss = new FeedParser($feed_data);
$rss->init();
$feed = db_escape_string($feed);
if (!$rss->error()) {
// We use local pluginhost here because we need to load different per-user feed plugins
$pluginhost->run_hooks(PluginHost::HOOK_FEED_PARSED, "hook_feed_parsed", $rss);
_debug("language: $feed_language", $debug_enabled);
_debug("processing feed data...", $debug_enabled);
// db_query("BEGIN");
if (DB_TYPE == "pgsql") {
$favicon_interval_qpart = "favicon_last_checked < NOW() - INTERVAL '12 hour'";
} else {
$favicon_interval_qpart = "favicon_last_checked < DATE_SUB(NOW(), INTERVAL 12 HOUR)";
}
$result = db_query("SELECT owner_uid,favicon_avg_color,
(favicon_last_checked IS NULL OR $favicon_interval_qpart) AS
favicon_needs_check
FROM ttrss_feeds WHERE id = '$feed'");
$favicon_needs_check = sql_bool_to_bool(db_fetch_result($result, 0,
"favicon_needs_check"));
$favicon_avg_color = db_fetch_result($result, 0, "favicon_avg_color");
$owner_uid = db_fetch_result($result, 0, "owner_uid");
$site_url = db_escape_string(mb_substr(rewrite_relative_url($fetch_url, $rss->get_link()), 0, 245));
_debug("site_url: $site_url", $debug_enabled);
_debug("feed_title: " . $rss->get_title(), $debug_enabled);
if ($favicon_needs_check || $force_refetch) {
/* terrible hack: if we crash on floicon shit here, we won't check
* the icon avgcolor again (unless the icon got updated) */
$favicon_file = ICONS_DIR . "/$feed.ico";
$favicon_modified = @filemtime($favicon_file);
_debug("checking favicon...", $debug_enabled);
RSSUtils::check_feed_favicon($site_url, $feed);
$favicon_modified_new = @filemtime($favicon_file);
if ($favicon_modified_new > $favicon_modified)
$favicon_avg_color = '';
if (file_exists($favicon_file) && function_exists("imagecreatefromstring") && $favicon_avg_color == '') {
require_once "colors.php";
db_query("UPDATE ttrss_feeds SET favicon_avg_color = 'fail' WHERE
id = '$feed'");
$favicon_color = db_escape_string(
calculate_avg_color($favicon_file));
$favicon_colorstring = ",favicon_avg_color = '".$favicon_color."'";
} else if ($favicon_avg_color == 'fail') {
_debug("floicon failed on this file, not trying to recalculate avg color", $debug_enabled);
}
db_query("UPDATE ttrss_feeds SET favicon_last_checked = NOW()
$favicon_colorstring
WHERE id = '$feed'");
}
_debug("loading filters & labels...", $debug_enabled);
$filters = load_filters($feed, $owner_uid);
if ($debug_enabled) {
print_r($filters);
}
_debug("" . count($filters) . " filters loaded.", $debug_enabled);
$items = $rss->get_items();
if (!is_array($items)) {
_debug("no articles found.", $debug_enabled);
db_query("UPDATE ttrss_feeds
SET last_updated = NOW(), last_unconditional = NOW(), last_error = '' WHERE id = '$feed'");
return; // no articles
}
_debug("processing articles...", $debug_enabled);
$tstart = time();
foreach ($items as $item) {
if ($_REQUEST['xdebug'] == 3) {
print_r($item);
}
if (ini_get("max_execution_time") > 0 && time() - $tstart >= ini_get("max_execution_time") * 0.7) {
_debug("looks like there's too many articles to process at once, breaking out", $debug_enabled);
break;
}
$entry_guid = $item->get_id();
if (!$entry_guid) $entry_guid = $item->get_link();
if (!$entry_guid) $entry_guid = RSSUtils::make_guid_from_title($item->get_title());
if (!$entry_guid) continue;
$entry_guid = "$owner_uid,$entry_guid";
$entry_guid_hashed = db_escape_string('SHA1:' . sha1($entry_guid));
_debug("guid $entry_guid / $entry_guid_hashed", $debug_enabled);
$entry_timestamp = "";
$entry_timestamp = $item->get_date();
_debug("orig date: " . $item->get_date(), $debug_enabled);
if ($entry_timestamp == -1 || !$entry_timestamp || $entry_timestamp > time()) {
$entry_timestamp = time();
}
$entry_timestamp_fmt = strftime("%Y/%m/%d %H:%M:%S", $entry_timestamp);
_debug("date $entry_timestamp [$entry_timestamp_fmt]", $debug_enabled);
// $entry_title = html_entity_decode($item->get_title(), ENT_COMPAT, 'UTF-8');
// $entry_title = decode_numeric_entities($entry_title);
$entry_title = $item->get_title();
$entry_link = rewrite_relative_url($site_url, $item->get_link());
_debug("title $entry_title", $debug_enabled);
_debug("link $entry_link", $debug_enabled);
if (!$entry_title) $entry_title = date("Y-m-d H:i:s", $entry_timestamp);;
$entry_content = $item->get_content();
if (!$entry_content) $entry_content = $item->get_description();
if ($_REQUEST["xdebug"] == 2) {
print "content: ";
print htmlspecialchars($entry_content);
print "\n";
}
$entry_comments = db_escape_string(mb_substr($item->get_comments_url(), 0, 245));
$num_comments = (int) $item->get_comments_count();
$entry_author = $item->get_author(); // escaped later
$entry_guid = db_escape_string(mb_substr($entry_guid, 0, 245));
_debug("author $entry_author", $debug_enabled);
_debug("num_comments: $num_comments", $debug_enabled);
_debug("looking for tags...", $debug_enabled);
// parse <category> entries into tags
$additional_tags = array();
$additional_tags_src = $item->get_categories();
if (is_array($additional_tags_src)) {
foreach ($additional_tags_src as $tobj) {
array_push($additional_tags, $tobj);
}
}
$entry_tags = array_unique($additional_tags);
for ($i = 0; $i < count($entry_tags); $i++)
$entry_tags[$i] = mb_strtolower($entry_tags[$i], 'utf-8');
_debug("tags found: " . join(",", $entry_tags), $debug_enabled);
_debug("done collecting data.", $debug_enabled);
$result = db_query("SELECT id, content_hash, lang FROM ttrss_entries
WHERE guid = '".db_escape_string($entry_guid)."' OR guid = '$entry_guid_hashed'");
if (db_num_rows($result) != 0) {
$base_entry_id = db_fetch_result($result, 0, "id");
$entry_stored_hash = db_fetch_result($result, 0, "content_hash");
$article_labels = Article::get_article_labels($base_entry_id, $owner_uid);
$entry_language = db_fetch_result($result, 0, "lang");
$existing_tags = Article::get_article_tags($base_entry_id, $owner_uid);
$entry_tags = array_unique(array_merge($entry_tags, $existing_tags));
} else {
$base_entry_id = false;
$entry_stored_hash = "";
$article_labels = array();
$entry_language = "";
}
$article = array("owner_uid" => $owner_uid, // read only
"guid" => $entry_guid, // read only
"guid_hashed" => $entry_guid_hashed, // read only
"title" => $entry_title,
"content" => $entry_content,
"link" => $entry_link,
"labels" => $article_labels, // current limitation: can add labels to article, can't remove them
"tags" => $entry_tags,
"author" => $entry_author,
"force_catchup" => false, // ugly hack for the time being
"score_modifier" => 0, // no previous value, plugin should recalculate score modifier based on content if needed
"language" => $entry_language,
"num_comments" => $num_comments, // read only
"feed" => array("id" => $feed,
"fetch_url" => $fetch_url,
"site_url" => $site_url,
"cache_images" => $cache_images)
);
$entry_plugin_data = "";
$entry_current_hash = RSSUtils::calculate_article_hash($article, $pluginhost);
_debug("article hash: $entry_current_hash [stored=$entry_stored_hash]", $debug_enabled);
if ($entry_current_hash == $entry_stored_hash && !isset($_REQUEST["force_rehash"])) {
_debug("stored article seems up to date [IID: $base_entry_id], updating timestamp only", $debug_enabled);
// we keep encountering the entry in feeds, so we need to
// update date_updated column so that we don't get horrible
// dupes when the entry gets purged and reinserted again e.g.
// in the case of SLOW SLOW OMG SLOW updating feeds
$base_entry_id = db_fetch_result($result, 0, "id");
db_query("UPDATE ttrss_entries SET date_updated = NOW()
WHERE id = '$base_entry_id'");
continue;
}
_debug("hash differs, applying plugin filters:", $debug_enabled);
foreach ($pluginhost->get_hooks(PluginHost::HOOK_ARTICLE_FILTER) as $plugin) {
_debug("... " . get_class($plugin), $debug_enabled);
$start = microtime(true);
$article = $plugin->hook_article_filter($article);
_debug("=== " . sprintf("%.4f (sec)", microtime(true) - $start), $debug_enabled);
$entry_plugin_data .= mb_strtolower(get_class($plugin)) . ",";
}
if ($_REQUEST["xdebug"] == 2) {
print "processed content: ";
print htmlspecialchars($article["content"]);
print "\n";
}
$entry_plugin_data = db_escape_string($entry_plugin_data);
_debug("plugin data: $entry_plugin_data", $debug_enabled);
// Workaround: 4-byte unicode requires utf8mb4 in MySQL. See https://tt-rss.org/forum/viewtopic.php?f=1&t=3377&p=20077#p20077
if (DB_TYPE == "mysql") {
foreach ($article as $k => $v) {
// i guess we'll have to take the risk of 4byte unicode labels & tags here
if (is_string($article[$k])) {
$article[$k] = preg_replace('/[\x{10000}-\x{10FFFF}]/u', "\xEF\xBF\xBD", $v);
}
}
}
/* Collect article tags here so we could filter by them: */
$matched_rules = array();
$article_filters = RSSUtils::get_article_filters($filters, $article["title"],
$article["content"], $article["link"], $article["author"],
$article["tags"], $matched_rules);
if ($debug_enabled) {
_debug("matched filter rules: ", $debug_enabled);
if (count($matched_rules) != 0) {
print_r($matched_rules);
}
_debug("filter actions: ", $debug_enabled);
if (count($article_filters) != 0) {
print_r($article_filters);
}
}
$plugin_filter_names = RSSUtils::find_article_filters($article_filters, "plugin");
$plugin_filter_actions = $pluginhost->get_filter_actions();
if (count($plugin_filter_names) > 0) {
_debug("applying plugin filter actions...", $debug_enabled);
foreach ($plugin_filter_names as $pfn) {
list($pfclass,$pfaction) = explode(":", $pfn["param"]);
if (isset($plugin_filter_actions[$pfclass])) {
$plugin = $pluginhost->get_plugin($pfclass);
_debug("... $pfclass: $pfaction", $debug_enabled);
if ($plugin) {
$start = microtime(true);
$article = $plugin->hook_article_filter_action($article, $pfaction);
_debug("=== " . sprintf("%.4f (sec)", microtime(true) - $start), $debug_enabled);
} else {
_debug("??? $pfclass: plugin object not found.");
}
} else {
_debug("??? $pfclass: filter plugin not registered.");
}
}
}
$entry_tags = $article["tags"];
$entry_guid = db_escape_string($entry_guid);
$entry_title = db_escape_string($article["title"]);
$entry_author = db_escape_string(mb_substr($article["author"], 0, 245));
$entry_link = db_escape_string($article["link"]);
$entry_content = $article["content"]; // escaped below
$entry_force_catchup = $article["force_catchup"];
$article_labels = $article["labels"];
$entry_score_modifier = (int) $article["score_modifier"];
$entry_language = db_escape_string($article["language"]);
if ($debug_enabled) {
_debug("article labels:", $debug_enabled);
if (count($article_labels) != 0) {
print_r($article_labels);
}
}
_debug("force catchup: $entry_force_catchup");
if ($cache_images && is_writable(CACHE_DIR . '/images'))
RSSUtils::cache_media($entry_content, $site_url, $debug_enabled);
$entry_content = db_escape_string($entry_content, false);
//db_query("BEGIN");
$result = db_query("SELECT id FROM ttrss_entries
WHERE (guid = '$entry_guid' OR guid = '$entry_guid_hashed')");
if (db_num_rows($result) == 0) {
_debug("base guid [$entry_guid or $entry_guid_hashed] not found, creating...", $debug_enabled);
// base post entry does not exist, create it
db_query(
"INSERT INTO ttrss_entries
(title,
guid,
link,
updated,
content,
content_hash,
no_orig_date,
date_updated,
date_entered,
comments,
num_comments,
plugin_data,
lang,
author)
VALUES
('$entry_title',
'$entry_guid_hashed',
'$entry_link',
'$entry_timestamp_fmt',
'$entry_content',
'$entry_current_hash',
false,
NOW(),
'$date_feed_processed',
'$entry_comments',
'$num_comments',
'$entry_plugin_data',
'$entry_language',
'$entry_author')");
}
// now it should exist, if not - bad luck then
$result = db_query("SELECT id FROM ttrss_entries
WHERE guid = '$entry_guid' OR guid = '$entry_guid_hashed'");
$entry_ref_id = 0;
$entry_int_id = 0;
if (db_num_rows($result) == 1) {
_debug("base guid found, checking for user record", $debug_enabled);
$ref_id = db_fetch_result($result, 0, "id");
$entry_ref_id = $ref_id;
/* $stored_guid = db_fetch_result($result, 0, "guid");
if ($stored_guid != $entry_guid_hashed) {
if ($debug_enabled) _debug("upgrading compat guid to hashed one", $debug_enabled);
db_query("UPDATE ttrss_entries SET guid = '$entry_guid_hashed' WHERE
id = '$ref_id'");
} */
if (RSSUtils::find_article_filter($article_filters, "filter")) {
//db_query("COMMIT"); // close transaction in progress
continue;
}
$score = RSSUtils::calculate_article_score($article_filters) + $entry_score_modifier;
_debug("initial score: $score [including plugin modifier: $entry_score_modifier]", $debug_enabled);
// check for user post link to main table
$query = "SELECT ref_id, int_id FROM ttrss_user_entries WHERE
ref_id = '$ref_id' AND owner_uid = '$owner_uid'";
// if ($_REQUEST["xdebug"]) print "$query\n";
$result = db_query($query);
// okay it doesn't exist - create user entry
if (db_num_rows($result) == 0) {
_debug("user record not found, creating...", $debug_enabled);
if ($score >= -500 && !RSSUtils::find_article_filter($article_filters, 'catchup') && !$entry_force_catchup) {
$unread = 'true';
$last_read_qpart = 'NULL';
} else {
$unread = 'false';
$last_read_qpart = 'NOW()';
}
if (RSSUtils::find_article_filter($article_filters, 'mark') || $score > 1000) {
$marked = 'true';
} else {
$marked = 'false';
}
if (RSSUtils::find_article_filter($article_filters, 'publish')) {
$published = 'true';
} else {
$published = 'false';
}
$last_marked = ($marked == 'true') ? 'NOW()' : 'NULL';
$last_published = ($published == 'true') ? 'NOW()' : 'NULL';
$result = db_query(
"INSERT INTO ttrss_user_entries
(ref_id, owner_uid, feed_id, unread, last_read, marked,
published, score, tag_cache, label_cache, uuid,
last_marked, last_published)
VALUES ('$ref_id', '$owner_uid', '$feed', $unread,
$last_read_qpart, $marked, $published, '$score', '', '',
'', $last_marked, $last_published)");
$result = db_query(
"SELECT int_id FROM ttrss_user_entries WHERE
ref_id = '$ref_id' AND owner_uid = '$owner_uid' AND
feed_id = '$feed' LIMIT 1");
if (db_num_rows($result) == 1) {
$entry_int_id = db_fetch_result($result, 0, "int_id");
}
} else {
_debug("user record FOUND", $debug_enabled);
$entry_ref_id = db_fetch_result($result, 0, "ref_id");
$entry_int_id = db_fetch_result($result, 0, "int_id");
}
_debug("RID: $entry_ref_id, IID: $entry_int_id", $debug_enabled);
if (DB_TYPE == "pgsql") {
$tsvector_combined = db_escape_string(mb_substr($entry_title . ' ' . strip_tags(str_replace('<', ' <', $entry_content)),
0, 1000000));
$tsvector_qpart = "tsvector_combined = to_tsvector('$feed_language', '$tsvector_combined'),";
} else {
$tsvector_qpart = "";
}
db_query("UPDATE ttrss_entries
SET title = '$entry_title',
content = '$entry_content',
content_hash = '$entry_current_hash',
updated = '$entry_timestamp_fmt',
$tsvector_qpart
num_comments = '$num_comments',
plugin_data = '$entry_plugin_data',
author = '$entry_author',
lang = '$entry_language'
WHERE id = '$ref_id'");
// update aux data
db_query("UPDATE ttrss_user_entries
SET score = '$score' WHERE ref_id = '$ref_id'");
if ($mark_unread_on_update) {
_debug("article updated, marking unread as requested.", $debug_enabled);
db_query("UPDATE ttrss_user_entries
SET last_read = null, unread = true WHERE ref_id = '$ref_id'");
}
}
//db_query("COMMIT");
_debug("assigning labels [other]...", $debug_enabled);
foreach ($article_labels as $label) {
Labels::add_article($entry_ref_id, $label[1], $owner_uid);
}
_debug("assigning labels [filters]...", $debug_enabled);
RSSUtils::assign_article_to_label_filters($entry_ref_id, $article_filters,
$owner_uid, $article_labels);
_debug("looking for enclosures...", $debug_enabled);
// enclosures
$enclosures = array();
$encs = $item->get_enclosures();
if (is_array($encs)) {
foreach ($encs as $e) {
$e_item = array(
rewrite_relative_url($site_url, $e->link),
$e->type, $e->length, $e->title, $e->width, $e->height);
array_push($enclosures, $e_item);
}
}
if ($cache_images && is_writable(CACHE_DIR . '/images'))
RSSUtils::cache_enclosures($enclosures, $site_url, $debug_enabled);
if ($debug_enabled) {
_debug("article enclosures:", $debug_enabled);
print_r($enclosures);
}
//db_query("BEGIN");
// debugging
// db_query("DELETE FROM ttrss_enclosures WHERE post_id = '$entry_ref_id'");
foreach ($enclosures as $enc) {
$enc_url = db_escape_string($enc[0]);
$enc_type = db_escape_string($enc[1]);
$enc_dur = db_escape_string($enc[2]);
$enc_title = db_escape_string($enc[3]);
$enc_width = intval($enc[4]);
$enc_height = intval($enc[5]);
$result = db_query("SELECT id FROM ttrss_enclosures
WHERE content_url = '$enc_url' AND post_id = '$entry_ref_id'");
if (db_num_rows($result) == 0) {
db_query("INSERT INTO ttrss_enclosures
(content_url, content_type, title, duration, post_id, width, height) VALUES
('$enc_url', '$enc_type', '$enc_title', '$enc_dur', '$entry_ref_id', $enc_width, $enc_height)");
}
}
//db_query("COMMIT");
// check for manual tags (we have to do it here since they're loaded from filters)
foreach ($article_filters as $f) {
if ($f["type"] == "tag") {
$manual_tags = trim_array(explode(",", $f["param"]));
foreach ($manual_tags as $tag) {
if (tag_is_valid($tag)) {
array_push($entry_tags, $tag);
}
}
}
}
// Skip boring tags
$boring_tags = trim_array(explode(",", mb_strtolower(get_pref(
'BLACKLISTED_TAGS', $owner_uid, ''), 'utf-8')));
$filtered_tags = array();
$tags_to_cache = array();
if ($entry_tags && is_array($entry_tags)) {
foreach ($entry_tags as $tag) {
if (array_search($tag, $boring_tags) === false) {
array_push($filtered_tags, $tag);
}
}
}
$filtered_tags = array_unique($filtered_tags);
if ($debug_enabled) {
_debug("filtered article tags:", $debug_enabled);
print_r($filtered_tags);
}
// Save article tags in the database
if (count($filtered_tags) > 0) {
//db_query("BEGIN");
foreach ($filtered_tags as $tag) {
$tag = sanitize_tag($tag);
$tag = db_escape_string($tag);
if (!tag_is_valid($tag)) continue;
$result = db_query("SELECT id FROM ttrss_tags
WHERE tag_name = '$tag' AND post_int_id = '$entry_int_id' AND
owner_uid = '$owner_uid' LIMIT 1");
if ($result && db_num_rows($result) == 0) {
db_query("INSERT INTO ttrss_tags
(owner_uid,tag_name,post_int_id)
VALUES ('$owner_uid','$tag', '$entry_int_id')");
}
array_push($tags_to_cache, $tag);
}
/* update the cache */
$tags_to_cache = array_unique($tags_to_cache);
$tags_str = db_escape_string(join(",", $tags_to_cache));
db_query("UPDATE ttrss_user_entries
SET tag_cache = '$tags_str' WHERE ref_id = '$entry_ref_id'
AND owner_uid = $owner_uid");
//db_query("COMMIT");
}
_debug("article processed", $debug_enabled);
}
_debug("purging feed...", $debug_enabled);
purge_feed($feed, 0, $debug_enabled);
db_query("UPDATE ttrss_feeds
SET last_updated = NOW(), last_unconditional = NOW(), last_error = '' WHERE id = '$feed'");
// db_query("COMMIT");
} else {
$error_msg = db_escape_string(mb_substr($rss->error(), 0, 245));
_debug("fetch error: $error_msg", $debug_enabled);
if (count($rss->errors()) > 1) {
foreach ($rss->errors() as $error) {
_debug("+ $error");
}
}
db_query(
"UPDATE ttrss_feeds SET last_error = '$error_msg',
last_updated = NOW(), last_unconditional = NOW() WHERE id = '$feed'");
unset($rss);
return;
}
_debug("done", $debug_enabled);
return true;
}
static function cache_enclosures($enclosures, $site_url, $debug) {
foreach ($enclosures as $enc) {
if (preg_match("/(image|audio|video)/", $enc[1])) {
$src = rewrite_relative_url($site_url, $enc[0]);
$local_filename = CACHE_DIR . "/images/" . sha1($src);
if ($debug) _debug("cache_enclosures: downloading: $src to $local_filename");
if (!file_exists($local_filename)) {
$file_content = fetch_file_contents($src);
if ($file_content && strlen($file_content) > MIN_CACHE_FILE_SIZE) {
file_put_contents($local_filename, $file_content);
}
} else {
touch($local_filename);
}
}
}
}
static function cache_media($html, $site_url, $debug) {
libxml_use_internal_errors(true);
$charset_hack = '<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
</head>';
$doc = new DOMDocument();
$doc->loadHTML($charset_hack . $html);
$xpath = new DOMXPath($doc);
$entries = $xpath->query('(//img[@src])|(//video/source[@src])|(//audio/source[@src])');
foreach ($entries as $entry) {
if ($entry->hasAttribute('src') && strpos($entry->getAttribute('src'), "data:") !== 0) {
$src = rewrite_relative_url($site_url, $entry->getAttribute('src'));
$local_filename = CACHE_DIR . "/images/" . sha1($src);
if ($debug) _debug("cache_media: downloading: $src to $local_filename");
if (!file_exists($local_filename)) {
$file_content = fetch_file_contents($src);
if ($file_content && strlen($file_content) > MIN_CACHE_FILE_SIZE) {
file_put_contents($local_filename, $file_content);
}
} else {
touch($local_filename);
}
}
}
}
static function expire_error_log($debug) {
if ($debug) _debug("Removing old error log entries...");
if (DB_TYPE == "pgsql") {
db_query("DELETE FROM ttrss_error_log
WHERE created_at < NOW() - INTERVAL '7 days'");
} else {
db_query("DELETE FROM ttrss_error_log
WHERE created_at < DATE_SUB(NOW(), INTERVAL 7 DAY)");
}
}
static function expire_lock_files($debug) {
//if ($debug) _debug("Removing old lock files...");
$num_deleted = 0;
if (is_writable(LOCK_DIRECTORY)) {
$files = glob(LOCK_DIRECTORY . "/*.lock");
if ($files) {
foreach ($files as $file) {
if (!file_is_locked(basename($file)) && time() - filemtime($file) > 86400*2) {
unlink($file);
++$num_deleted;
}
}
}
}
if ($debug) _debug("Removed $num_deleted old lock files.");
}
static function expire_cached_files($debug) {
foreach (array("simplepie", "images", "export", "upload") as $dir) {
$cache_dir = CACHE_DIR . "/$dir";
// if ($debug) _debug("Expiring $cache_dir");
$num_deleted = 0;
if (is_writable($cache_dir)) {
$files = glob("$cache_dir/*");
if ($files) {
foreach ($files as $file) {
if (time() - filemtime($file) > 86400*CACHE_MAX_DAYS) {
unlink($file);
++$num_deleted;
}
}
}
}
if ($debug) _debug("$cache_dir: removed $num_deleted files.");
}
}
/**
* Source: http://www.php.net/manual/en/function.parse-url.php#104527
* Returns the url query as associative array
*
* @param string query
* @return array params
*/
static function convertUrlQuery($query) {
$queryParts = explode('&', $query);
$params = array();
foreach ($queryParts as $param) {
$item = explode('=', $param);
$params[$item[0]] = $item[1];
}
return $params;
}
static function get_article_filters($filters, $title, $content, $link, $author, $tags, &$matched_rules = false) {
$matches = array();
foreach ($filters as $filter) {
$match_any_rule = $filter["match_any_rule"];
$inverse = $filter["inverse"];
$filter_match = false;
foreach ($filter["rules"] as $rule) {
$match = false;
$reg_exp = str_replace('/', '\/', $rule["reg_exp"]);
$rule_inverse = $rule["inverse"];
if (!$reg_exp)
continue;
switch ($rule["type"]) {
case "title":
$match = @preg_match("/$reg_exp/iu", $title);
break;
case "content":
// we don't need to deal with multiline regexps
$content = preg_replace("/[\r\n\t]/", "", $content);
$match = @preg_match("/$reg_exp/iu", $content);
break;
case "both":
// we don't need to deal with multiline regexps
$content = preg_replace("/[\r\n\t]/", "", $content);
$match = (@preg_match("/$reg_exp/iu", $title) || @preg_match("/$reg_exp/iu", $content));
break;
case "link":
$match = @preg_match("/$reg_exp/iu", $link);
break;
case "author":
$match = @preg_match("/$reg_exp/iu", $author);
break;
case "tag":
foreach ($tags as $tag) {
if (@preg_match("/$reg_exp/iu", $tag)) {
$match = true;
break;
}
}
break;
}
if ($rule_inverse) $match = !$match;
if ($match_any_rule) {
if ($match) {
$filter_match = true;
break;
}
} else {
$filter_match = $match;
if (!$match) {
break;
}
}
}
if ($inverse) $filter_match = !$filter_match;
if ($filter_match) {
if (is_array($matched_rules)) array_push($matched_rules, $rule);
foreach ($filter["actions"] AS $action) {
array_push($matches, $action);
// if Stop action encountered, perform no further processing
if (isset($action["type"]) && $action["type"] == "stop") return $matches;
}
}
}
return $matches;
}
static function find_article_filter($filters, $filter_name) {
foreach ($filters as $f) {
if ($f["type"] == $filter_name) {
return $f;
};
}
return false;
}
static function find_article_filters($filters, $filter_name) {
$results = array();
foreach ($filters as $f) {
if ($f["type"] == $filter_name) {
array_push($results, $f);
};
}
return $results;
}
static function calculate_article_score($filters) {
$score = 0;
foreach ($filters as $f) {
if ($f["type"] == "score") {
$score += $f["param"];
};
}
return $score;
}
static function labels_contains_caption($labels, $caption) {
foreach ($labels as $label) {
if ($label[1] == $caption) {
return true;
}
}
return false;
}
static function assign_article_to_label_filters($id, $filters, $owner_uid, $article_labels) {
foreach ($filters as $f) {
if ($f["type"] == "label") {
if (!RSSUtils::labels_contains_caption($article_labels, $f["param"])) {
Labels::add_article($id, $f["param"], $owner_uid);
}
}
}
}
static function make_guid_from_title($title) {
return preg_replace("/[ \"\',.:;]/", "-",
mb_strtolower(strip_tags($title), 'utf-8'));
}
static function cleanup_counters_cache($debug) {
$result = db_query("DELETE FROM ttrss_counters_cache
WHERE feed_id > 0 AND
(SELECT COUNT(id) FROM ttrss_feeds WHERE
id = feed_id AND
ttrss_counters_cache.owner_uid = ttrss_feeds.owner_uid) = 0");
$frows = db_affected_rows($result);
$result = db_query("DELETE FROM ttrss_cat_counters_cache
WHERE feed_id > 0 AND
(SELECT COUNT(id) FROM ttrss_feed_categories WHERE
id = feed_id AND
ttrss_cat_counters_cache.owner_uid = ttrss_feed_categories.owner_uid) = 0");
$crows = db_affected_rows($result);
if ($debug) _debug("Removed $frows (feeds) $crows (cats) orphaned counter cache entries.");
}
static function housekeeping_user($owner_uid) {
$tmph = new PluginHost();
load_user_plugins($owner_uid, $tmph);
$tmph->run_hooks(PluginHost::HOOK_HOUSE_KEEPING, "hook_house_keeping", "");
}
static function housekeeping_common($debug) {
RSSUtils::expire_cached_files($debug);
RSSUtils::expire_lock_files($debug);
RSSUtils::expire_error_log($debug);
$count = RSSUtils::update_feedbrowser_cache();
_debug("Feedbrowser updated, $count feeds processed.");
Article::purge_orphans( true);
RSSUtils::cleanup_counters_cache($debug);
//$rc = cleanup_tags( 14, 50000);
//_debug("Cleaned $rc cached tags.");
PluginHost::getInstance()->run_hooks(PluginHost::HOOK_HOUSE_KEEPING, "hook_house_keeping", "");
}
static function check_feed_favicon($site_url, $feed) {
# print "FAVICON [$site_url]: $favicon_url\n";
$icon_file = ICONS_DIR . "/$feed.ico";
if (!file_exists($icon_file)) {
$favicon_url = get_favicon_url($site_url);
if ($favicon_url) {
// Limiting to "image" type misses those served with text/plain
$contents = fetch_file_contents($favicon_url); // , "image");
if ($contents) {
// Crude image type matching.
// Patterns gleaned from the file(1) source code.
if (preg_match('/^\x00\x00\x01\x00/', $contents)) {
// 0 string \000\000\001\000 MS Windows icon resource
//error_log("check_feed_favicon: favicon_url=$favicon_url isa MS Windows icon resource");
}
elseif (preg_match('/^GIF8/', $contents)) {
// 0 string GIF8 GIF image data
//error_log("check_feed_favicon: favicon_url=$favicon_url isa GIF image");
}
elseif (preg_match('/^\x89PNG\x0d\x0a\x1a\x0a/', $contents)) {
// 0 string \x89PNG\x0d\x0a\x1a\x0a PNG image data
//error_log("check_feed_favicon: favicon_url=$favicon_url isa PNG image");
}
elseif (preg_match('/^\xff\xd8/', $contents)) {
// 0 beshort 0xffd8 JPEG image data
//error_log("check_feed_favicon: favicon_url=$favicon_url isa JPG image");
}
elseif (preg_match('/^BM/', $contents)) {
// 0 string BM PC bitmap (OS2, Windows BMP files)
//error_log("check_feed_favicon, favicon_url=$favicon_url isa BMP image");
}
else {
//error_log("check_feed_favicon: favicon_url=$favicon_url isa UNKNOWN type");
$contents = "";
}
}
if ($contents) {
$fp = @fopen($icon_file, "w");
if ($fp) {
fwrite($fp, $contents);
fclose($fp);
chmod($icon_file, 0644);
}
}
}
return $icon_file;
}
}
}
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