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tt-rss/include/rssfuncs.php
Andrew Dolgov f1e511c8f2 remove simplepie force_feed() (closes #414)
2011-12-31 15:08:00 +04:00

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<?php
define('DAEMON_UPDATE_LOGIN_LIMIT', 30);
define('DAEMON_FEED_LIMIT', 100);
define('DAEMON_SLEEP_INTERVAL', 120);
function update_feedbrowser_cache($link) {
$result = db_query($link, "SELECT feed_url, site_url, title, COUNT(id) AS subscribers
FROM ttrss_feeds WHERE (SELECT COUNT(id) = 0 FROM ttrss_feeds AS tf
WHERE tf.feed_url = ttrss_feeds.feed_url
AND (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($link, "BEGIN");
db_query($link, "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"]);
$tmp_result = db_query($link, "SELECT subscribers FROM
ttrss_feedbrowser_cache WHERE feed_url = '$feed_url'");
if (db_num_rows($tmp_result) == 0) {
db_query($link, "INSERT INTO ttrss_feedbrowser_cache
(feed_url, site_url, title, subscribers) VALUES ('$feed_url',
'$site_url', '$title', '$subscribers')");
++$count;
}
}
db_query($link, "COMMIT");
return $count;
}
/**
* 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 (!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 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(',', $feed_ids)));
}
expire_cached_files($debug);
// 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, $line["id"], true);
sleep(1); // prevent flood (FIXME make this an option?)
}
// Send feed digests by email if needed.
send_headlines_digests($link, 100, $debug);
} // function update_daemon_common
function fetch_twitter_rss($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 ($debug_enabled) {
_debug("feed update interval (sec): " .
get_feed_update_interval($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 = $entry_content["escaped"];
}
}
if ($cache_images && is_writable(CACHE_DIR . '/images'))
$entry_content = cache_images($entry_content, $site_url, $debug_enabled);
if ($_REQUEST["xdebug"] == 2) {
print "update_rss_feed: content: ";
print $entry_content;
print "\n";
}
$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");
}
}
function cache_images($html, $site_url, $debug) {
$cache_dir = CACHE_DIR . "/images";
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 = $xpath->query('(//img[@src])');
foreach ($entries as $entry) {
if ($entry->hasAttribute('src')) {
$src = rewrite_relative_url($site_url, $entry->getAttribute('src'));
$local_filename = CACHE_DIR . "/images/" . sha1($src) . ".png";
if ($debug) _debug("cache_images: downloading: $src to $local_filename");
if (!file_exists($local_filename)) {
$file_content = fetch_file_contents($src);
if ($file_content) {
file_put_contents($local_filename, $file_content);
}
}
if (file_exists($local_filename)) {
$entry->setAttribute('src', SELF_URL_PATH . '/image.php?url=' .
base64_encode($src));
}
}
}
$node = $doc->getElementsByTagName('body')->item(0);
return $doc->saveXML($node);
}
function expire_cached_files($debug) {
foreach (array("magpie", "simplepie", "images") 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/*");
foreach ($files as $file) {
if (time() - filemtime($file) > 86400*7) {
unlink($file);
++$num_deleted;
}
}
}
if ($debug) _debug("Removed $num_deleted files.");
}
}
?>
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