split rss updating stuff into separate include file

include/rssfuncs.php

@@ -0,0 +1,1271 @@
+<?php
+	/**
+	 * Update a feed batch.
+	 * Used by daemons to update n feeds by run.
+	 * Only update feed needing a update, and not being processed
+	 * by another process.
+	 *
+	 * @param mixed $link Database link
+	 * @param integer $limit Maximum number of feeds in update batch. Default to DAEMON_FEED_LIMIT.
+	 * @param boolean $from_http Set to true if you call this function from http to disable cli specific code.
+	 * @param boolean $debug Set to false to disable debug output. Default to true.
+	 * @return void
+	 */
+	function update_daemon_common($link, $limit = DAEMON_FEED_LIMIT, $from_http = false, $debug = true) {
+		// Process all other feeds using last_updated and interval parameters
+
+		// Test if the user has loggued in recently. If not, it does not update its feeds.
+		if (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 exceded).
+		if (DB_TYPE == "pgsql") {
+			$update_limit_qpart = "AND ((
+					ttrss_feeds.update_interval = 0
+					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)";
+		} else {
+			$update_limit_qpart = "AND ((
+					ttrss_feeds.update_interval = 0
+					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)";
+		}
+
+		// 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 '5 minutes')";
+		} else {
+			$updstart_thresh_qpart = "AND (ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < DATE_SUB(NOW(), INTERVAL 5 MINUTE))";
+		}
+
+		// Test if there is a limit to number of updated feeds
+		$query_limit = "";
+		if($limit) $query_limit = sprintf("LIMIT %d", $limit);
+
+		$random_qpart = sql_random_function();
+
+		// We search for feed needing update.
+		$result = db_query($link, "SELECT ttrss_feeds.feed_url,ttrss_feeds.id, ttrss_feeds.owner_uid,
+				".SUBSTRING_FOR_DATE."(ttrss_feeds.last_updated,1,19) AS last_updated,
+				ttrss_feeds.update_interval
+			FROM
+				ttrss_feeds, ttrss_users, ttrss_user_prefs
+			WHERE
+				ttrss_feeds.owner_uid = ttrss_users.id
+				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
+			ORDER BY $random_qpart $query_limit");
+
+		$user_prefs_cache = array();
+
+		if($debug) _debug(sprintf("Scheduled %d feeds to update...\n", 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)) {
+			$feeds_to_update[$line['id']] = $line;
+		}
+
+		// 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.
+		$feed_ids = array_keys($feeds_to_update);
+		if($feed_ids) {
+			db_query($link, sprintf("UPDATE ttrss_feeds SET last_update_started = NOW()
+				WHERE id IN (%s)", implode(',', $feed_ids)));
+		}
+
+		// For each feed, we call the feed update function.
+		while ($line = array_pop($feeds_to_update)) {
+
+			if($debug) _debug("Feed: " . $line["feed_url"] . ", " . $line["last_updated"]);
+
+			update_rss_feed($link, $line["id"], true);
+
+			sleep(1); // prevent flood (FIXME make this an option?)
+		}
+
+		// Send feed digests by email if needed.
+		if (DAEMON_SENDS_DIGESTS) send_headlines_digests($link);
+
+	} // function update_daemon_common
+
+	function fetch_twitter_rss($link, $url, $owner_uid) {
+
+		require_once 'lib/tmhoauth/tmhOAuth.php';
+
+		$result = db_query($link, "SELECT twitter_oauth FROM ttrss_users
+			WHERE id = $owner_uid");
+
+		$access_token = json_decode(db_fetch_result($result, 0, 'twitter_oauth'), true);
+		$url_escaped = db_escape_string($url);
+
+		if ($access_token) {
+
+			$tmhOAuth = new tmhOAuth(array(
+				'consumer_key'    => CONSUMER_KEY,
+				'consumer_secret' => CONSUMER_SECRET,
+				'user_token' => $access_token['oauth_token'],
+				'user_secret' => $access_token['oauth_token_secret'],
+			));
+
+			$code = $tmhOAuth->request('GET', $url);
+
+			if ($code == 200) {
+
+				$content = $tmhOAuth->response['response'];
+
+				define('MAGPIE_CACHE_ON', false);
+
+				$rss = new MagpieRSS($content, MAGPIE_OUTPUT_ENCODING,
+					MAGPIE_INPUT_ENCODING, MAGPIE_DETECT_ENCODING );
+
+				return $rss;
+
+			} else {
+
+				db_query($link, "UPDATE ttrss_feeds
+					SET last_error = 'OAuth authorization failed ($code).'
+					WHERE feed_url = '$url_escaped' AND owner_uid = $owner_uid");
+			}
+
+		} else {
+
+			db_query($link, "UPDATE ttrss_feeds
+				SET last_error = 'OAuth information not found.'
+				WHERE feed_url = '$url_escaped' AND owner_uid = $owner_uid");
+
+			return false;
+		}
+	}
+
+	function update_rss_feed($link, $feed, $ignore_daemon = false, $no_cache = false) {
+
+		global $memcache;
+
+		/* Update all feeds with the same URL to utilize memcache */
+
+		if ($memcache) {
+			$result = db_query($link, "SELECT f1.id
+				FROM ttrss_feeds AS f1, ttrss_feeds AS f2
+				WHERE	f2.feed_url = f1.feed_url AND f2.id = '$feed'");
+
+			while ($line = db_fetch_assoc($result)) {
+				update_rss_feed_real($link, $line["id"], $ignore_daemon, $no_cache);
+			}
+		} else {
+			update_rss_feed_real($link, $feed, $ignore_daemon, $no_cache);
+		}
+	}
+
+	function update_rss_feed_real($link, $feed, $ignore_daemon = false, $no_cache = false,
+		$override_url = false) {
+
+		require_once "lib/simplepie/simplepie.inc";
+		require_once "lib/magpierss/rss_fetch.inc";
+		require_once 'lib/magpierss/rss_utils.inc';
+
+		global $memcache;
+
+		$debug_enabled = defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug'];
+
+		if (!$_REQUEST["daemon"] && !$ignore_daemon) {
+			return false;
+		}
+
+		if ($debug_enabled) {
+			_debug("update_rss_feed: start");
+		}
+
+		if (!$ignore_daemon) {
+
+			if (DB_TYPE == "pgsql") {
+					$updstart_thresh_qpart = "(ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < NOW() - INTERVAL '120 seconds')";
+				} else {
+					$updstart_thresh_qpart = "(ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < DATE_SUB(NOW(), INTERVAL 120 SECOND))";
+				}
+
+			$result = db_query($link, "SELECT id,update_interval,auth_login,
+				auth_pass,cache_images,update_method
+				FROM ttrss_feeds WHERE id = '$feed' AND $updstart_thresh_qpart");
+
+		} else {
+
+			$result = db_query($link, "SELECT id,update_interval,auth_login,
+				feed_url,auth_pass,cache_images,update_method,last_updated,
+				mark_unread_on_update, owner_uid, update_on_checksum_change,
+				pubsub_state
+				FROM ttrss_feeds WHERE id = '$feed'");
+
+		}
+
+		if (db_num_rows($result) == 0) {
+			if ($debug_enabled) {
+				_debug("update_rss_feed: feed $feed NOT FOUND/SKIPPED");
+			}
+			return false;
+		}
+
+		$update_method = db_fetch_result($result, 0, "update_method");
+		$last_updated = db_fetch_result($result, 0, "last_updated");
+		$owner_uid = db_fetch_result($result, 0, "owner_uid");
+		$mark_unread_on_update = sql_bool_to_bool(db_fetch_result($result,
+			0, "mark_unread_on_update"));
+		$update_on_checksum_change = sql_bool_to_bool(db_fetch_result($result,
+			0, "update_on_checksum_change"));
+		$pubsub_state = db_fetch_result($result, 0, "pubsub_state");
+
+		db_query($link, "UPDATE ttrss_feeds SET last_update_started = NOW()
+			WHERE id = '$feed'");
+
+		$auth_login = db_fetch_result($result, 0, "auth_login");
+		$auth_pass = db_fetch_result($result, 0, "auth_pass");
+
+		if ($update_method == 0)
+			$update_method = DEFAULT_UPDATE_METHOD + 1;
+
+		// 1 - Magpie
+		// 2 - SimplePie
+		// 3 - Twitter OAuth
+
+		if ($update_method == 2)
+			$use_simplepie = true;
+		else
+			$use_simplepie = false;
+
+		if ($debug_enabled) {
+			_debug("update method: $update_method (feed setting: $update_method) (use simplepie: $use_simplepie)\n");
+		}
+
+		if ($update_method == 1) {
+			$auth_login = urlencode($auth_login);
+			$auth_pass = urlencode($auth_pass);
+		}
+
+		$update_interval = db_fetch_result($result, 0, "update_interval");
+		$cache_images = sql_bool_to_bool(db_fetch_result($result, 0, "cache_images"));
+		$fetch_url = db_fetch_result($result, 0, "feed_url");
+
+		if ($update_interval < 0) { return false; }
+
+		$feed = db_escape_string($feed);
+
+		if ($auth_login && $auth_pass ){
+			$url_parts = array();
+			preg_match("/(^[^:]*):\/\/(.*)/", $fetch_url, $url_parts);
+
+			if ($url_parts[1] && $url_parts[2]) {
+				$fetch_url = $url_parts[1] . "://$auth_login:$auth_pass@" . $url_parts[2];
+			}
+
+		}
+
+		if ($override_url)
+			$fetch_url = $override_url;
+
+		if ($debug_enabled) {
+			_debug("update_rss_feed: fetching [$fetch_url]...");
+		}
+
+		$obj_id = md5("FDATA:$use_simplepie:$fetch_url");
+
+		if ($memcache && $obj = $memcache->get($obj_id)) {
+
+			if ($debug_enabled) {
+				_debug("update_rss_feed: data found in memcache.");
+			}
+
+			$rss = $obj;
+
+		} else {
+
+			if ($update_method == 3) {
+				$rss = fetch_twitter_rss($link, $fetch_url, $owner_uid);
+			} else if ($update_method == 1) {
+
+				define('MAGPIE_CACHE_AGE', get_feed_update_interval($link, $feed) * 60);
+				define('MAGPIE_CACHE_ON', !$no_cache);
+				define('MAGPIE_FETCH_TIME_OUT', 60);
+				define('MAGPIE_CACHE_DIR', CACHE_DIR . "/magpie");
+
+				$rss = @fetch_rss($fetch_url);
+			} else {
+				$simplepie_cache_dir = CACHE_DIR . "/simplepie";
+
+				if (!is_dir($simplepie_cache_dir)) {
+					mkdir($simplepie_cache_dir);
+				}
+
+				$rss = new SimplePie();
+				$rss->set_useragent(SELF_USER_AGENT);
+	#			$rss->set_timeout(10);
+				$rss->set_feed_url($fetch_url);
+				$rss->set_output_encoding('UTF-8');
+				$rss->force_feed(true);
+
+				if (SIMPLEPIE_CACHE_IMAGES && $cache_images) {
+
+					if ($debug_enabled) {
+						_debug("enabling image cache");
+					}
+
+					$rss->set_image_handler("image.php", 'i');
+				}
+
+				if ($debug_enabled) {
+					_debug("feed update interval (sec): " .
+						get_feed_update_interval($link, $feed)*60);
+				}
+
+				$rss->enable_cache(!$no_cache);
+
+				if (!$no_cache) {
+					$rss->set_cache_location($simplepie_cache_dir);
+					$rss->set_cache_duration(get_feed_update_interval($link, $feed) * 60);
+				}
+
+				$rss->init();
+			}
+
+			if ($memcache && $rss) $memcache->add($obj_id, $rss, 0, 300);
+		}
+
+//		print_r($rss);
+
+		if ($debug_enabled) {
+			_debug("update_rss_feed: fetch done, parsing...");
+		}
+
+		$feed = db_escape_string($feed);
+
+		if ($update_method == 2) {
+			$fetch_ok = !$rss->error();
+		} else {
+			$fetch_ok = !!$rss;
+		}
+
+		if ($fetch_ok) {
+
+			if ($debug_enabled) {
+				_debug("update_rss_feed: processing feed data...");
+			}
+
+//			db_query($link, "BEGIN");
+
+			$result = db_query($link, "SELECT title,icon_url,site_url,owner_uid
+				FROM ttrss_feeds WHERE id = '$feed'");
+
+			$registered_title = db_fetch_result($result, 0, "title");
+			$orig_icon_url = db_fetch_result($result, 0, "icon_url");
+			$orig_site_url = db_fetch_result($result, 0, "site_url");
+
+			$owner_uid = db_fetch_result($result, 0, "owner_uid");
+
+			if ($use_simplepie) {
+				$site_url = $rss->get_link();
+			} else {
+				$site_url = $rss->channel["link"];
+			}
+
+			$site_url = rewrite_relative_url($fetch_url, $site_url);
+
+			if ($debug_enabled) {
+				_debug("update_rss_feed: checking favicon...");
+			}
+
+			check_feed_favicon($site_url, $feed, $link);
+
+			if (!$registered_title || $registered_title == "[Unknown]") {
+
+				if ($use_simplepie) {
+					$feed_title = db_escape_string($rss->get_title());
+				} else {
+					$feed_title = db_escape_string($rss->channel["title"]);
+				}
+
+				if ($debug_enabled) {
+					_debug("update_rss_feed: registering title: $feed_title");
+				}
+
+				db_query($link, "UPDATE ttrss_feeds SET
+					title = '$feed_title' WHERE id = '$feed'");
+			}
+
+			// weird, weird Magpie
+			if (!$use_simplepie) {
+				if (!$site_url) $site_url = db_escape_string($rss->channel["link_"]);
+			}
+
+			if ($site_url && $orig_site_url != db_escape_string($site_url)) {
+				db_query($link, "UPDATE ttrss_feeds SET
+					site_url = '$site_url' WHERE id = '$feed'");
+			}
+
+//			print "I: " . $rss->channel["image"]["url"];
+
+			if (!$use_simplepie) {
+				$icon_url = db_escape_string($rss->image["url"]);
+			} else {
+				$icon_url = db_escape_string($rss->get_image_url());
+			}
+
+			$icon_url = substr($icon_url, 0, 250);
+
+			if ($icon_url && $orig_icon_url != $icon_url) {
+				db_query($link, "UPDATE ttrss_feeds SET icon_url = '$icon_url' WHERE id = '$feed'");
+			}
+
+			if ($debug_enabled) {
+				_debug("update_rss_feed: loading filters...");
+			}
+
+			$filters = load_filters($link, $feed, $owner_uid);
+
+//			if ($debug_enabled) {
+//				print_r($filters);
+//			}
+
+			if ($use_simplepie) {
+				$iterator = $rss->get_items();
+			} else {
+				$iterator = $rss->items;
+				if (!$iterator || !is_array($iterator)) $iterator = $rss->entries;
+				if (!$iterator || !is_array($iterator)) $iterator = $rss;
+			}
+
+			if (!is_array($iterator)) {
+				/* db_query($link, "UPDATE ttrss_feeds
+					SET last_error = 'Parse error: can\'t find any articles.'
+					WHERE id = '$feed'"); */
+
+				// clear any errors and mark feed as updated if fetched okay
+				// even if it's blank
+
+				if ($debug_enabled) {
+					_debug("update_rss_feed: entry iterator is not an array, no articles?");
+				}
+
+				db_query($link, "UPDATE ttrss_feeds
+					SET last_updated = NOW(), last_error = '' WHERE id = '$feed'");
+
+				return; // no articles
+			}
+
+			if ($pubsub_state != 2 && PUBSUBHUBBUB_ENABLED) {
+
+				if ($debug_enabled) _debug("update_rss_feed: checking for PUSH hub...");
+
+				$feed_hub_url = false;
+				if ($use_simplepie) {
+					$links = $rss->get_links('hub');
+
+					if ($links && is_array($links)) {
+						foreach ($links as $l) {
+							$feed_hub_url = $l;
+							break;
+						}
+					}
+
+				} else {
+					$atom = $rss->channel['atom'];
+
+					if ($atom) {
+						if ($atom['link@rel'] == 'hub') {
+							$feed_hub_url = $atom['link@href'];
+						}
+
+						if (!$feed_hub_url && $atom['link#'] > 1) {
+							for ($i = 2; $i <= $atom['link#']; $i++) {
+								if ($atom["link#$i@rel"] == 'hub') {
+									$feed_hub_url = $atom["link#$i@href"];
+									break;
+								}
+							}
+						}
+					} else {
+						$feed_hub_url = $rss->channel['link_hub'];
+					}
+				}
+
+				if ($debug_enabled) _debug("update_rss_feed: feed hub url: $feed_hub_url");
+
+				if ($feed_hub_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";
+
+					$s = new Subscriber($feed_hub_url, $callback_url);
+
+					$rc = $s->subscribe($fetch_url);
+
+					if ($debug_enabled)
+						_debug("update_rss_feed: feed hub url found, subscribe request sent.");
+
+					db_query($link, "UPDATE ttrss_feeds SET pubsub_state = 1
+						WHERE id = '$feed'");
+				}
+			}
+
+			if ($debug_enabled) {
+				_debug("update_rss_feed: processing articles...");
+			}
+
+			foreach ($iterator as $item) {
+
+				if ($_REQUEST['xdebug'] == 2) {
+					print_r($item);
+				}
+
+				if ($use_simplepie) {
+					$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());
+
+				} else {
+
+					$entry_guid = $item["id"];
+
+					if (!$entry_guid) $entry_guid = $item["guid"];
+					if (!$entry_guid) $entry_guid = $item["about"];
+					if (!$entry_guid) $entry_guid = $item["link"];
+					if (!$entry_guid) $entry_guid = make_guid_from_title($item["title"]);
+				}
+
+				if ($debug_enabled) {
+					_debug("update_rss_feed: guid $entry_guid");
+				}
+
+				if (!$entry_guid) continue;
+
+				$entry_timestamp = "";
+
+				if ($use_simplepie) {
+					$entry_timestamp = strtotime($item->get_date());
+				} else {
+					$rss_2_date = $item['pubdate'];
+					$rss_1_date = $item['dc']['date'];
+					$atom_date = $item['issued'];
+					if (!$atom_date) $atom_date = $item['updated'];
+
+					if ($atom_date != "") $entry_timestamp = parse_w3cdtf($atom_date);
+					if ($rss_1_date != "") $entry_timestamp = parse_w3cdtf($rss_1_date);
+					if ($rss_2_date != "") $entry_timestamp = strtotime($rss_2_date);
+
+				}
+
+				if ($entry_timestamp == "" || $entry_timestamp == -1 || !$entry_timestamp) {
+					$entry_timestamp = time();
+					$no_orig_date = 'true';
+				} else {
+					$no_orig_date = 'false';
+				}
+
+				$entry_timestamp_fmt = strftime("%Y/%m/%d %H:%M:%S", $entry_timestamp);
+
+				if ($debug_enabled) {
+					_debug("update_rss_feed: date $entry_timestamp [$entry_timestamp_fmt]");
+				}
+
+				if ($use_simplepie) {
+					$entry_title = $item->get_title();
+				} else {
+					$entry_title = trim(strip_tags($item["title"]));
+				}
+
+				if ($use_simplepie) {
+					$entry_link = $item->get_link();
+				} else {
+					// strange Magpie workaround
+					$entry_link = $item["link_"];
+					if (!$entry_link) $entry_link = $item["link"];
+				}
+
+				$entry_link = rewrite_relative_url($site_url, $entry_link);
+
+				if ($debug_enabled) {
+					_debug("update_rss_feed: title $entry_title");
+					_debug("update_rss_feed: link $entry_link");
+				}
+
+				if (!$entry_title) $entry_title = date("Y-m-d H:i:s", $entry_timestamp);;
+
+				$entry_link = strip_tags($entry_link);
+
+				if ($use_simplepie) {
+					$entry_content = $item->get_content();
+					if (!$entry_content) $entry_content = $item->get_description();
+				} else {
+					$entry_content = $item["content:escaped"];
+
+					if (!$entry_content) $entry_content = $item["content:encoded"];
+					if (!$entry_content) $entry_content = $item["content"]["encoded"];
+					if (!$entry_content) $entry_content = $item["content"];
+
+					if (is_array($entry_content)) $entry_content = $entry_content[0];
+
+					// Magpie bugs are getting ridiculous
+					if (trim($entry_content) == "Array") $entry_content = false;
+
+					if (!$entry_content) $entry_content = $item["atom_content"];
+					if (!$entry_content) $entry_content = $item["summary"];
+
+					if (!$entry_content ||
+						strlen($entry_content) < strlen($item["description"])) {
+							$entry_content = $item["description"];
+					};
+
+					// WTF
+					if (is_array($entry_content)) {
+						$entry_content = $entry_content["encoded"];
+						if (!$entry_content) $entry_content = $entry_content["escaped"];
+					}
+				}
+
+				if ($_REQUEST["xdebug"] == 2) {
+					print "update_rss_feed: content: ";
+					print_r(htmlspecialchars($entry_content));
+				}
+
+				$entry_content_unescaped = $entry_content;
+
+				if ($use_simplepie) {
+					$entry_comments = strip_tags($item->data["comments"]);
+					if ($item->get_author()) {
+						$entry_author_item = $item->get_author();
+						$entry_author = $entry_author_item->get_name();
+						if (!$entry_author) $entry_author = $entry_author_item->get_email();
+
+						$entry_author = db_escape_string($entry_author);
+					}
+				} else {
+					$entry_comments = strip_tags($item["comments"]);
+
+					$entry_author = db_escape_string(strip_tags($item['dc']['creator']));
+
+					if ($item['author']) {
+
+						if (is_array($item['author'])) {
+
+							if (!$entry_author) {
+								$entry_author = db_escape_string(strip_tags($item['author']['name']));
+							}
+
+							if (!$entry_author) {
+								$entry_author = db_escape_string(strip_tags($item['author']['email']));
+							}
+						}
+
+						if (!$entry_author) {
+							$entry_author = db_escape_string(strip_tags($item['author']));
+						}
+					}
+				}
+
+				if (preg_match('/^[\t\n\r ]*$/', $entry_author)) $entry_author = '';
+
+				$entry_guid = db_escape_string(strip_tags($entry_guid));
+				$entry_guid = mb_substr($entry_guid, 0, 250);
+
+				$result = db_query($link, "SELECT id FROM	ttrss_entries
+					WHERE guid = '$entry_guid'");
+
+				$entry_content = db_escape_string($entry_content, false);
+
+				$content_hash = "SHA1:" . sha1(strip_tags($entry_content));
+
+				$entry_title = db_escape_string($entry_title);
+				$entry_link = db_escape_string($entry_link);
+				$entry_comments = mb_substr(db_escape_string($entry_comments), 0, 250);
+				$entry_author = mb_substr($entry_author, 0, 250);
+
+				if ($use_simplepie) {
+					$num_comments = 0; #FIXME#
+				} else {
+					$num_comments = db_escape_string($item["slash"]["comments"]);
+				}
+
+				if (!$num_comments) $num_comments = 0;
+
+				if ($debug_enabled) {
+					_debug("update_rss_feed: looking for tags [1]...");
+				}
+
+				// parse <category> entries into tags
+
+				$additional_tags = array();
+
+				if ($use_simplepie) {
+
+					$additional_tags_src = $item->get_categories();
+
+					if (is_array($additional_tags_src)) {
+						foreach ($additional_tags_src as $tobj) {
+							array_push($additional_tags, $tobj->get_term());
+						}
+					}
+
+					if ($debug_enabled) {
+						_debug("update_rss_feed: category tags:");
+						print_r($additional_tags);
+					}
+
+				} else {
+
+					$t_ctr = $item['category#'];
+
+					if ($t_ctr == 0) {
+						$additional_tags = array();
+					} else if ($t_ctr > 0) {
+						$additional_tags = array($item['category']);
+
+						if ($item['category@term']) {
+							array_push($additional_tags, $item['category@term']);
+						}
+
+						for ($i = 0; $i <= $t_ctr; $i++ ) {
+							if ($item["category#$i"]) {
+								array_push($additional_tags, $item["category#$i"]);
+							}
+
+							if ($item["category#$i@term"]) {
+								array_push($additional_tags, $item["category#$i@term"]);
+							}
+						}
+					}
+
+					// parse <dc:subject> elements
+
+					$t_ctr = $item['dc']['subject#'];
+
+					if ($t_ctr > 0) {
+						array_push($additional_tags, $item['dc']['subject']);
+
+						for ($i = 0; $i <= $t_ctr; $i++ ) {
+							if ($item['dc']["subject#$i"]) {
+								array_push($additional_tags, $item['dc']["subject#$i"]);
+							}
+						}
+					}
+				}
+
+				if ($debug_enabled) {
+					_debug("update_rss_feed: looking for tags [2]...");
+				}
+
+				/* taaaags */
+				// <a href="..." rel="tag">Xorg</a>, //
+
+				$entry_tags = null;
+
+				preg_match_all("/<a.*?rel=['\"]tag['\"].*?\>([^<]+)<\/a>/i",
+					$entry_content_unescaped, $entry_tags);
+
+				$entry_tags = $entry_tags[1];
+
+				$entry_tags = array_merge($entry_tags, $additional_tags);
+				$entry_tags = array_unique($entry_tags);
+
+				for ($i = 0; $i < count($entry_tags); $i++)
+					$entry_tags[$i] = mb_strtolower($entry_tags[$i], 'utf-8');
+
+				if ($debug_enabled) {
+					_debug("update_rss_feed: unfiltered tags found:");
+					print_r($entry_tags);
+				}
+
+				# sanitize content
+
+				$entry_content = sanitize_article_content($entry_content);
+				$entry_title = sanitize_article_content($entry_title);
+
+				if ($debug_enabled) {
+					_debug("update_rss_feed: done collecting data [TITLE:$entry_title]");
+				}
+
+				db_query($link, "BEGIN");
+
+				if (db_num_rows($result) == 0) {
+
+					if ($debug_enabled) {
+						_debug("update_rss_feed: base guid not found");
+					}
+
+					// base post entry does not exist, create it
+
+					$result = db_query($link,
+						"INSERT INTO ttrss_entries
+							(title,
+							guid,
+							link,
+							updated,
+							content,
+							content_hash,
+							no_orig_date,
+							date_updated,
+							date_entered,
+							comments,
+							num_comments,
+							author)
+						VALUES
+							('$entry_title',
+							'$entry_guid',
+							'$entry_link',
+							'$entry_timestamp_fmt',
+							'$entry_content',
+							'$content_hash',
+							$no_orig_date,
+							NOW(),
+							NOW(),
+							'$entry_comments',
+							'$num_comments',
+							'$entry_author')");
+				} else {
+					// 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($link, "UPDATE ttrss_entries SET date_updated = NOW()
+						WHERE id = '$base_entry_id'");
+				}
+
+				// now it should exist, if not - bad luck then
+
+				$result = db_query($link, "SELECT
+						id,content_hash,no_orig_date,title,
+						".SUBSTRING_FOR_DATE."(date_updated,1,19) as date_updated,
+						".SUBSTRING_FOR_DATE."(updated,1,19) as updated,
+						num_comments
+					FROM
+						ttrss_entries
+					WHERE guid = '$entry_guid'");
+
+				$entry_ref_id = 0;
+				$entry_int_id = 0;
+
+				if (db_num_rows($result) == 1) {
+
+					if ($debug_enabled) {
+						_debug("update_rss_feed: base guid found, checking for user record");
+					}
+
+					// this will be used below in update handler
+					$orig_content_hash = db_fetch_result($result, 0, "content_hash");
+					$orig_title = db_fetch_result($result, 0, "title");
+					$orig_num_comments = db_fetch_result($result, 0, "num_comments");
+					$orig_date_updated = strtotime(db_fetch_result($result,
+						0, "date_updated"));
+
+					$ref_id = db_fetch_result($result, 0, "id");
+					$entry_ref_id = $ref_id;
+
+					// check for user post link to main table
+
+					// do we allow duplicate posts with same GUID in different feeds?
+					if (get_pref($link, "ALLOW_DUPLICATE_POSTS", $owner_uid, false)) {
+						$dupcheck_qpart = "AND (feed_id = '$feed' OR feed_id IS NULL)";
+					} else {
+						$dupcheck_qpart = "";
+					}
+
+					/* Collect article tags here so we could filter by them: */
+
+					$article_filters = get_article_filters($filters, $entry_title,
+						$entry_content, $entry_link, $entry_timestamp, $entry_author,
+						$entry_tags);
+
+					if ($debug_enabled) {
+						_debug("update_rss_feed: article filters: ");
+						if (count($article_filters) != 0) {
+							print_r($article_filters);
+						}
+					}
+
+					if (find_article_filter($article_filters, "filter")) {
+						db_query($link, "COMMIT"); // close transaction in progress
+						continue;
+					}
+
+					$score = calculate_article_score($article_filters);
+
+					if ($debug_enabled) {
+						_debug("update_rss_feed: initial score: $score");
+					}
+
+					$query = "SELECT ref_id, int_id FROM ttrss_user_entries WHERE
+							ref_id = '$ref_id' AND owner_uid = '$owner_uid'
+							$dupcheck_qpart";
+
+//					if ($_REQUEST["xdebug"]) print "$query\n";
+
+					$result = db_query($link, $query);
+
+					// okay it doesn't exist - create user entry
+					if (db_num_rows($result) == 0) {
+
+						if ($debug_enabled) {
+							_debug("update_rss_feed: user record not found, creating...");
+						}
+
+						if ($score >= -500 && !find_article_filter($article_filters, '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';
+						}
+
+						$result = db_query($link,
+							"INSERT INTO ttrss_user_entries
+								(ref_id, owner_uid, feed_id, unread, last_read, marked,
+									published, score, tag_cache, label_cache, uuid)
+							VALUES ('$ref_id', '$owner_uid', '$feed', $unread,
+								$last_read_qpart, $marked, $published, '$score', '', '', '')");
+
+						if (PUBSUBHUBBUB_HUB && $published == 'true') {
+							$rss_link = get_self_url_prefix() .
+								"/public.php?op=rss&id=-2&key=" .
+								get_feed_access_key($link, -2, false, $owner_uid);
+
+							$p = new Publisher(PUBSUBHUBBUB_HUB);
+
+							$pubsub_result = $p->publish_update($rss_link);
+						}
+
+						$result = db_query($link,
+							"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 {
+						if ($debug_enabled) {
+							_debug("update_rss_feed: user record FOUND");
+						}
+
+						$entry_ref_id = db_fetch_result($result, 0, "ref_id");
+						$entry_int_id = db_fetch_result($result, 0, "int_id");
+					}
+
+					if ($debug_enabled) {
+						_debug("update_rss_feed: RID: $entry_ref_id, IID: $entry_int_id");
+					}
+
+					$post_needs_update = false;
+					$update_insignificant = false;
+
+					if ($orig_num_comments != $num_comments) {
+						$post_needs_update = true;
+						$update_insignificant = true;
+					}
+
+					if ($content_hash != $orig_content_hash) {
+						$post_needs_update = true;
+						$update_insignificant = false;
+					}
+
+					if (db_escape_string($orig_title) != $entry_title) {
+						$post_needs_update = true;
+						$update_insignificant = false;
+					}
+
+					// if post needs update, update it and mark all user entries
+					// linking to this post as updated
+					if ($post_needs_update) {
+
+						if (defined('DAEMON_EXTENDED_DEBUG')) {
+							_debug("update_rss_feed: post $entry_guid needs update...");
+						}
+
+//						print "<!-- post $orig_title needs update : $post_needs_update -->";
+
+						db_query($link, "UPDATE ttrss_entries
+							SET title = '$entry_title', content = '$entry_content',
+								content_hash = '$content_hash',
+								updated = '$entry_timestamp_fmt',
+								num_comments = '$num_comments'
+							WHERE id = '$ref_id'");
+
+						if (!$update_insignificant) {
+							if ($mark_unread_on_update) {
+								db_query($link, "UPDATE ttrss_user_entries
+									SET last_read = null, unread = true WHERE ref_id = '$ref_id'");
+							} else if ($update_on_checksum_change) {
+								db_query($link, "UPDATE ttrss_user_entries
+									SET last_read = null WHERE ref_id = '$ref_id'
+										AND unread = false");
+							}
+						}
+					}
+				}
+
+				db_query($link, "COMMIT");
+
+				if ($debug_enabled) {
+					_debug("update_rss_feed: assigning labels...");
+				}
+
+				assign_article_to_labels($link, $entry_ref_id, $article_filters,
+					$owner_uid);
+
+				if ($debug_enabled) {
+					_debug("update_rss_feed: looking for enclosures...");
+				}
+
+				// enclosures
+
+				$enclosures = array();
+
+				if ($use_simplepie) {
+					$encs = $item->get_enclosures();
+
+					if (is_array($encs)) {
+						foreach ($encs as $e) {
+							$e_item = array(
+								$e->link, $e->type, $e->length);
+
+							array_push($enclosures, $e_item);
+						}
+					}
+
+				} else {
+					// <enclosure>
+
+					$e_ctr = $item['enclosure#'];
+
+					if ($e_ctr > 0) {
+						$e_item = array($item['enclosure@url'],
+							$item['enclosure@type'],
+							$item['enclosure@length']);
+
+						array_push($enclosures, $e_item);
+
+						for ($i = 0; $i <= $e_ctr; $i++ ) {
+
+							if ($item["enclosure#$i@url"]) {
+								$e_item = array($item["enclosure#$i@url"],
+									$item["enclosure#$i@type"],
+									$item["enclosure#$i@length"]);
+								array_push($enclosures, $e_item);
+							}
+						}
+					}
+
+					// <media:content>
+					// can there be many of those? yes -fox
+
+					$m_ctr = $item['media']['content#'];
+
+					if ($m_ctr > 0) {
+						$e_item = array($item['media']['content@url'],
+							$item['media']['content@medium'],
+							$item['media']['content@length']);
+
+						array_push($enclosures, $e_item);
+
+						for ($i = 0; $i <= $m_ctr; $i++ ) {
+
+							if ($item["media"]["content#$i@url"]) {
+								$e_item = array($item["media"]["content#$i@url"],
+									$item["media"]["content#$i@medium"],
+									$item["media"]["content#$i@length"]);
+								array_push($enclosures, $e_item);
+							}
+						}
+
+					}
+				}
+
+
+				if ($debug_enabled) {
+					_debug("update_rss_feed: article enclosures:");
+					print_r($enclosures);
+				}
+
+				db_query($link, "BEGIN");
+
+				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]);
+
+					$result = db_query($link, "SELECT id FROM ttrss_enclosures
+						WHERE content_url = '$enc_url' AND post_id = '$entry_ref_id'");
+
+					if (db_num_rows($result) == 0) {
+						db_query($link, "INSERT INTO ttrss_enclosures
+							(content_url, content_type, title, duration, post_id) VALUES
+							('$enc_url', '$enc_type', '', '$enc_dur', '$entry_ref_id')");
+					}
+				}
+
+				db_query($link, "COMMIT");
+
+				// check for manual tags (we have to do it here since they're loaded from filters)
+
+				foreach ($article_filters as $f) {
+					if ($f[0] == "tag") {
+
+						$manual_tags = trim_array(explode(",", $f[1]));
+
+						foreach ($manual_tags as $tag) {
+							if (tag_is_valid($tag)) {
+								array_push($entry_tags, $tag);
+							}
+						}
+					}
+				}
+
+				// Skip boring tags
+
+				$boring_tags = trim_array(explode(",", mb_strtolower(get_pref($link,
+					'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 ($debug_enabled) {
+					_debug("update_rss_feed: filtered article tags:");
+					print_r($filtered_tags);
+				}
+
+				// Save article tags in the database
+
+				if (count($filtered_tags) > 0) {
+
+					db_query($link, "BEGIN");
+
+					foreach ($filtered_tags as $tag) {
+
+						$tag = sanitize_tag($tag);
+						$tag = db_escape_string($tag);
+
+						if (!tag_is_valid($tag)) continue;
+
+						$result = db_query($link, "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($result) == 0) {
+
+								db_query($link, "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(",", $tags_to_cache));
+
+					db_query($link, "UPDATE ttrss_user_entries
+						SET tag_cache = '$tags_str' WHERE ref_id = '$entry_ref_id'
+						AND owner_uid = $owner_uid");
+
+					db_query($link, "COMMIT");
+				}
+
+				if ($debug_enabled) {
+					_debug("update_rss_feed: article processed");
+				}
+			}
+
+			if (!$last_updated) {
+				if ($debug_enabled) {
+					_debug("update_rss_feed: new feed, catching it up...");
+				}
+				catchup_feed($link, $feed, false, $owner_uid);
+			}
+
+			if ($debug_enabled) {
+				_debug("purging feed...");
+			}
+
+			purge_feed($link, $feed, 0, $debug_enabled);
+
+			db_query($link, "UPDATE ttrss_feeds
+				SET last_updated = NOW(), last_error = '' WHERE id = '$feed'");
+
+//			db_query($link, "COMMIT");
+
+		} else {
+
+			if ($use_simplepie) {
+				$error_msg = mb_substr($rss->error(), 0, 250);
+			} else {
+				$error_msg = mb_substr(magpie_error(), 0, 250);
+			}
+
+			if ($debug_enabled) {
+				_debug("update_rss_feed: error fetching feed: $error_msg");
+			}
+
+			$error_msg = db_escape_string($error_msg);
+
+			db_query($link,
+				"UPDATE ttrss_feeds SET last_error = '$error_msg',
+					last_updated = NOW() WHERE id = '$feed'");
+		}
+
+		if ($use_simplepie) {
+			unset($rss);
+		}
+
+		if ($debug_enabled) {
+			_debug("update_rss_feed: done");
+		}
+
+	}
+
+
+
+
+?>

update.php

@@ -7,6 +7,7 @@
 	chdir(dirname(__FILE__));
 
 	require_once "functions.php";
+	require_once "rssfuncs.php";
 	require_once "sanity_check.php";
 	require_once "config.php";
 	require_once "db.php";

update_daemon2.php

@@ -32,6 +32,7 @@
 	require_once "db.php";
 	require_once "db-prefs.php";
 	require_once "functions.php";
+	require_once "rssfuncs.php";
 	require_once "lib/magpierss/rss_fetch.inc";
 
 	$children = array();