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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);
- }
- $result = db_query("SELECT id,update_interval,auth_login,
- feed_url,auth_pass,cache_images,
- mark_unread_on_update, owner_uid,
- auth_pass_encrypted, feed_language,
- last_modified
- FROM ttrss_feeds WHERE id = '$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");
- $cache_images = sql_bool_to_bool(db_fetch_result($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("stored last modified: $stored_last_modified", $debug_enabled);
- _debug("fetching [$fetch_url]...", $debug_enabled);
- if (ini_get("open_basedir") && function_exists("curl_init")) {
- _debug("not using CURL due to open_basedir restrictions");
- }
- /*$feed_data = fetch_file_contents($fetch_url, false,
- $auth_login, $auth_pass, false,
- $no_cache ? FEED_FETCH_NO_CACHE_TIMEOUT : FEED_FETCH_TIMEOUT,
- 0);*/
- // TODO: last_modified should be limited, if the feed has not been updated for a while
- // we probably should force one update without the header
- // unfortunately last_updated gets bumped on http 304 so that daemon would work properly
- $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: " . $fetch_last_modified);
- if ($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.", $debug_enabled);
- db_query("UPDATE ttrss_feeds
- SET last_updated = NOW(), last_error = '' WHERE id = '$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, $debug_enabled);
- db_query("UPDATE ttrss_feeds
- SET last_updated = NOW(), last_error = '' WHERE id = '$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() 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");
- }
- 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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