diff options
author | Andrew Dolgov <[email protected]> | 2017-05-05 18:10:07 +0300 |
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committer | Andrew Dolgov <[email protected]> | 2017-05-05 18:10:07 +0300 |
commit | e6c886bf66928d4bd496672f12b79b547747677b (patch) | |
tree | 7f7ab97379a201799c934ecb69da243045394cb4 /include | |
parent | 65af3b2cbba06901612cf721359aea792037cc5a (diff) |
wrap rssfuncs into rssutils class
Diffstat (limited to 'include')
-rw-r--r-- | include/rssfuncs.php | 1574 |
1 files changed, 0 insertions, 1574 deletions
diff --git a/include/rssfuncs.php b/include/rssfuncs.php deleted file mode 100644 index 33b6ff6e4..000000000 --- a/include/rssfuncs.php +++ /dev/null @@ -1,1574 +0,0 @@ -<?php - define_default('DAEMON_UPDATE_LOGIN_LIMIT', 30); - define_default('DAEMON_FEED_LIMIT', 500); - define_default('DAEMON_SLEEP_INTERVAL', 120); - define_default('_MIN_CACHE_FILE_SIZE', 1024); - - // TODO: this needs to be removed from global namespace into classes/RSS.php or something - - 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); - } - - 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 $count; - - } - - function update_daemon_common($limit = DAEMON_FEED_LIMIT, $debug = true) { - // Process all other feeds using last_updated and interval parameters - - $schema_version = get_schema_version(); - - if ($schema_version != SCHEMA_VERSION) { - die("Schema version is wrong, please upgrade the database.\n"); - } - - define('PREFS_NO_CACHE', true); - - // Test if the user has loggued in recently. If not, it does not update its feeds. - 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 = ""; - } - - // Test if the feed need a update (update interval exceeded). - 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))"; - } - - // Test if there is a limit to number of updated feeds - $query_limit = ""; - if($limit) $query_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"; - - // We search for feed needing update. - $result = db_query($query); - - if($debug) _debug(sprintf("Scheduled %d feeds to update...", db_num_rows($result))); - - // Here is a little cache magic in order to minimize risk of double feed updates. - $feeds_to_update = array(); - while ($line = db_fetch_assoc($result)) { - array_push($feeds_to_update, db_escape_string($line['feed_url'])); - } - - // We update the feed last update started date before anything else. - // There is no lag due to feed contents downloads - // It prevent an other process to update the same feed. - - if(count($feeds_to_update) > 0) { - $feeds_quoted = array(); - - foreach ($feeds_to_update as $feed) { - array_push($feeds_quoted, "'" . db_escape_string($feed) . "'"); - } - - db_query(sprintf("UPDATE ttrss_feeds SET last_update_started = NOW() - WHERE feed_url IN (%s)", implode(',', $feeds_quoted))); - } - - $nf = 0; - $bstarted = microtime(true); - - $batch_owners = array(); - - // For each feed, we call the feed update function. - foreach ($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"]); - - $fstarted = microtime(true); - update_rss_feed($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 $owner_uid..."); - - housekeeping_user($owner_uid); - } - - // Send feed digests by email if needed. - Digest::send_headlines_digests($debug); - - return $nf; - - } - - // this is used when subscribing - function set_basic_feed_info($feed) { - - $feed = db_escape_string($feed); - - $result = db_query("SELECT feed_url,auth_pass,auth_login,auth_pass_encrypted - FROM ttrss_feeds WHERE id = '$feed'"); - - $auth_pass_encrypted = sql_bool_to_bool(db_fetch_result($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"); - - $feed_data = fetch_file_contents($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()) { - - $result = db_query("SELECT title, site_url FROM ttrss_feeds WHERE id = '$feed'"); - - $registered_title = db_fetch_result($result, 0, "title"); - $orig_site_url = db_fetch_result($result, 0, "site_url"); - - $site_url = db_escape_string(mb_substr(rewrite_relative_url($fetch_url, $rss->get_link()), 0, 245)); - $feed_title = db_escape_string(mb_substr($rss->get_title(), 0, 199)); - - if ($feed_title && (!$registered_title || $registered_title == "[Unknown]")) { - db_query("UPDATE ttrss_feeds SET - title = '$feed_title' WHERE id = '$feed'"); - } - - if ($site_url && $orig_site_url != $site_url) { - db_query("UPDATE ttrss_feeds SET - site_url = '$site_url' WHERE id = '$feed'"); - } - } - } - - /** - * @SuppressWarnings(PHPMD.UnusedFormalParameter) - */ - function update_rss_feed($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 $feed..."); - set_basic_feed_info($feed); - } - - $result = db_query("SELECT id,update_interval,auth_login, - feed_url,auth_pass,cache_images, - mark_unread_on_update, owner_uid, - pubsub_state, auth_pass_encrypted, - feed_language - FROM ttrss_feeds WHERE id = '$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")); - $pubsub_state = db_fetch_result($result, 0, "pubsub_state"); - $auth_pass_encrypted = sql_bool_to_bool(db_fetch_result($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); - } - - $cache_images = sql_bool_to_bool(db_fetch_result($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", $debug_enabled); - } - - // fetch feed from source - if (!$feed_data) { - _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); - - 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.", $debug_enabled); - - // cache vanilla feed data for re-use - if ($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...", $debug_enabled); - - check_feed_favicon($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, $owner_uid); - - _debug("" . count($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 - } - - if ($pubsub_state != 2 && PUBSUBHUBBUB_ENABLED) { - - _debug("checking for PUSH hub...", $debug_enabled); - - $feed_hub_url = false; - - $links = $rss->get_links('hub'); - - if ($links && is_array($links)) { - foreach ($links as $l) { - $feed_hub_url = $l; - break; - } - } - - _debug("feed hub url: $feed_hub_url", $debug_enabled); - - $feed_self_url = $fetch_url; - - $links = $rss->get_links('self'); - - if ($links && is_array($links)) { - foreach ($links as $l) { - $feed_self_url = $l; - break; - } - } - - _debug("feed self url = $feed_self_url"); - - if ($feed_hub_url && $feed_self_url && function_exists('curl_init') && - !ini_get("open_basedir")) { - - require_once 'lib/pubsubhubbub/Subscriber.php'; - - $callback_url = get_self_url_prefix() . - "/public.php?op=pubsub&id=$feed"; - - $s = new Pubsubhubbub\Subscriber\Subscriber($feed_hub_url, $callback_url); - - $rc = $s->subscribe($feed_self_url); - - _debug("feed hub url found, subscribe request sent. [rc=$rc]", $debug_enabled); - - db_query("UPDATE ttrss_feeds SET pubsub_state = 1 - WHERE id = '$feed'"); - } - } - - _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) $entry_guid = make_guid_from_title($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, - "feed" => array("id" => $feed, - "fetch_url" => $fetch_url, - "site_url" => $site_url, - "cache_images" => $cache_images) - ); - - $entry_plugin_data = ""; - $entry_current_hash = calculate_article_hash($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(); - - $article_filters = get_article_filters($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); - } - } - - $plugin_filter_names = find_article_filters($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')) - 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 = '$ref_id'"); - } */ - - if (find_article_filter($article_filters, "filter")) { - //db_query("COMMIT"); // close transaction in progress - continue; - } - - $score = calculate_article_score($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 && !find_article_filter($article_filters, 'catchup') && !$entry_force_catchup) { - $unread = 'true'; - $last_read_qpart = 'NULL'; - } else { - $unread = 'false'; - $last_read_qpart = 'NOW()'; - } - - if (find_article_filter($article_filters, 'mark') || $score > 1000) { - $marked = 'true'; - } else { - $marked = 'false'; - } - - if (find_article_filter($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)"); - - if (PUBSUBHUBBUB_HUB && $published == 'true') { - $rss_link = get_self_url_prefix() . - "/public.php?op=rss&id=-2&key=" . - get_feed_access_key(-2, false, $owner_uid); - - $p = new pubsubhubbub\publisher\Publisher(PUBSUBHUBBUB_HUB); - - /* $pubsub_result = */ $p->publish_update($rss_link); - } - - $result = db_query( - "SELECT int_id FROM ttrss_user_entries WHERE - ref_id = '$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]...", $debug_enabled); - - assign_article_to_label_filters($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')) - 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", $debug_enabled); - - return true; - } - - function cache_enclosures($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); - } - } - } - } - - 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); - } - } - } - } - - 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)"); - } - - } - - 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 $num_deleted old lock files."); - } - - function expire_cached_files($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*7) { - unlink($file); - - ++$num_deleted; - } - } - } - } - - if ($debug) _debug("$cache_dir: removed $num_deleted files."); - } - } - - /** - * Source: http://www.php.net/manual/en/function.parse-url.php#104527 - * Returns the url query as associative array - * - * @param string query - * @return array params - */ - function convertUrlQuery($query) { - $queryParts = explode('&', $query); - - $params = array(); - - foreach ($queryParts as $param) { - $item = explode('=', $param); - $params[$item[0]] = $item[1]; - } - - return $params; - } - - function get_article_filters($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 $matches; - } - - function find_article_filter($filters, $filter_name) { - foreach ($filters as $f) { - if ($f["type"] == $filter_name) { - return $f; - }; - } - return false; - } - - function find_article_filters($filters, $filter_name) { - $results = array(); - - foreach ($filters as $f) { - if ($f["type"] == $filter_name) { - array_push($results, $f); - }; - } - return $results; - } - - function calculate_article_score($filters) { - $score = 0; - - foreach ($filters as $f) { - if ($f["type"] == "score") { - $score += $f["param"]; - }; - } - return $score; - } - - function labels_contains_caption($labels, $caption) { - foreach ($labels as $label) { - if ($label[1] == $caption) { - return true; - } - } - - return false; - } - - function assign_article_to_label_filters($id, $filters, $owner_uid, $article_labels) { - foreach ($filters as $f) { - if ($f["type"] == "label") { - if (!labels_contains_caption($article_labels, $f["param"])) { - Labels::add_article($id, $f["param"], $owner_uid); - } - } - } - } - - function make_guid_from_title($title) { - return preg_replace("/[ \"\',.:;]/", "-", - mb_strtolower(strip_tags($title), 'utf-8')); - } - - function cleanup_counters_cache($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) $crows (cats) orphaned counter cache entries."); - } - - function housekeeping_user($owner_uid) { - $tmph = new PluginHost(); - - load_user_plugins($owner_uid, $tmph); - - $tmph->run_hooks(PluginHost::HOOK_HOUSE_KEEPING, "hook_house_keeping", ""); - } - - function housekeeping_common($debug) { - expire_cached_files($debug); - expire_lock_files($debug); - expire_error_log($debug); - - $count = update_feedbrowser_cache(); - _debug("Feedbrowser updated, $count feeds processed."); - - Article::purge_orphans( true); - cleanup_counters_cache($debug); - - //$rc = cleanup_tags( 14, 50000); - //_debug("Cleaned $rc cached tags."); - - PluginHost::getInstance()->run_hooks(PluginHost::HOOK_HOUSE_KEEPING, "hook_house_keeping", ""); - } - - function check_feed_favicon($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; - } - } |