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ttrss/include/rssfuncs.php

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<?php
define('DAEMON_UPDATE_LOGIN_LIMIT', 30);
define('DAEMON_FEED_LIMIT', 100);
define('DAEMON_SLEEP_INTERVAL', 60);
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)) {
$subscribers = db_escape_string($link, $line["subscribers"]);
$feed_url = db_escape_string($link, $line["feed_url"]);
$title = db_escape_string($link, $line["title"]);
$site_url = db_escape_string($link, $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
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 exceded).
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
OR last_updated = '1970-01-01 00:00:00')";
} 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
OR last_updated = '1970-01-01 00:00:00')";
}
// 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 DISTINCT ttrss_feeds.feed_url,$random_qpart
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...", 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($link, $line['feed_url']));
}
// We update the feed last update started date before anything else.
// There is no lag due to feed contents downloads
// It prevent an other process to update the same feed.
if(count($feeds_to_update) > 0) {
$feeds_quoted = array();
foreach ($feeds_to_update as $feed) {
array_push($feeds_quoted, "'" . db_escape_string($link, $feed) . "'");
}
db_query($link, sprintf("UPDATE ttrss_feeds SET last_update_started = NOW()
WHERE feed_url IN (%s)", implode(',', $feeds_quoted)));
}
expire_cached_files($debug);
expire_lock_files($debug);
$nf = 0;
// For each feed, we call the feed update function.
foreach ($feeds_to_update as $feed) {
if($debug) _debug("Base feed: $feed");
//update_rss_feed($link, $line["id"], true);
// since we have the data cached, we can deal with other feeds with the same url
$tmp_result = db_query($link, "SELECT DISTINCT ttrss_feeds.id,last_updated
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
feed_url = '".db_escape_string($link, $feed)."' AND
(ttrss_feeds.update_interval > 0 OR
ttrss_user_prefs.value != '-1')
$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"] . ", " . $tline["id"]);
update_rss_feed($link, $tline["id"], true);
++$nf;
}
}
}
require_once "digest.php";
// Send feed digests by email if needed.
send_headlines_digests($link, $debug);
return $nf;
} // function update_daemon_common
// ignore_daemon is not used
function update_rss_feed($link, $feed, $ignore_daemon = false, $no_cache = false,
$override_url = false) {
require_once "lib/simplepie/simplepie.inc";
$debug_enabled = defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug'];
if ($debug_enabled) {
_debug("update_rss_feed: start");
}
$result = db_query($link, "SELECT id,update_interval,auth_login,
feed_url,auth_pass,cache_images,last_updated,
mark_unread_on_update, owner_uid,
pubsub_state, auth_pass_encrypted
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;
}
$last_updated = db_fetch_result($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"));
$pubsub_state = db_fetch_result($result, 0, "pubsub_state");
$auth_pass_encrypted = sql_bool_to_bool(db_fetch_result($result,
0, "auth_pass_encrypted"));
db_query($link, "UPDATE ttrss_feeds SET last_update_started = NOW()
WHERE id = '$feed'");
$auth_login = db_fetch_result($result, 0, "auth_login");
$auth_pass = db_fetch_result($result, 0, "auth_pass");
if ($auth_pass_encrypted) {
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");
$feed = db_escape_string($link, $feed);
if ($override_url) $fetch_url = $override_url;
$date_feed_processed = date('Y-m-d H:i');
$cache_filename = CACHE_DIR . "/simplepie/" . sha1($fetch_url) . ".feed";
// Ignore cache if new feed or manual update.
$cache_age = ($no_cache || is_null($last_updated) || $last_updated == '1970-01-01 00:00:00') ?
30 : get_feed_update_interval($link, $feed) * 60;
if ($debug_enabled) {
_debug("update_rss_feed: cache filename: $cache_filename exists: " . file_exists($cache_filename));
_debug("update_rss_feed: cache age: $cache_age; no cache: $no_cache");
}
$cached_feed_data_hash = false;
$rss = false;
$rss_hash = false;
$cache_timestamp = file_exists($cache_filename) ? filemtime($cache_filename) : 0;
$last_updated_timestamp = strtotime($last_updated);
$force_refetch = isset($_REQUEST["force_refetch"]);
if (file_exists($cache_filename) &&
is_readable($cache_filename) &&
!$auth_login && !$auth_pass &&
filemtime($cache_filename) > time() - $cache_age) {
if ($debug_enabled) {
_debug("update_rss_feed: using local cache.");
}
if ($cache_timestamp > $last_updated_timestamp) {
@$rss_data = file_get_contents($cache_filename);
if ($rss_data) {
$rss_hash = sha1($rss_data);
@$rss = unserialize($rss_data);
}
} else if (!$force_refetch) {
if ($debug_enabled) {
_debug("update_rss_feed: local cache valid and older than last_updated, nothing to do.");
}
return;
}
}
if (!$rss) {
if (!$feed_data) {
if ($debug_enabled) {
_debug("update_rss_feed: fetching [$fetch_url] (ts: $cache_timestamp/$last_updated_timestamp)");
}
$feed_data = fetch_file_contents($fetch_url, false,
$auth_login, $auth_pass, false,
$no_cache ? FEED_FETCH_NO_CACHE_TIMEOUT : FEED_FETCH_TIMEOUT,
$force_refetch ? 0 : max($last_updated_timestamp, $cache_timestamp));
if ($debug_enabled) {
_debug("update_rss_feed: fetch done.");
}
}
if (!$feed_data) {
global $fetch_last_error;
global $fetch_last_error_code;
if ($debug_enabled) {
_debug("update_rss_feed: unable to fetch: $fetch_last_error [$fetch_last_error_code]");
}
$error_escaped = '';
// If-Modified-Since
if ($fetch_last_error_code != 304) {
$error_escaped = db_escape_string($link, $fetch_last_error);
} else {
if ($debug_enabled) {
_debug("update_rss_feed: source claims data not modified, nothing to do.");
}
}
db_query($link,
"UPDATE ttrss_feeds SET last_error = '$error_escaped',
last_updated = NOW() WHERE id = '$feed'");
return;
}
}
$pluginhost = new PluginHost($link);
$pluginhost->set_debug($debug_enabled);
$user_plugins = get_pref($link, "_ENABLED_PLUGINS", $owner_uid);
$pluginhost->load(PLUGINS, $pluginhost::KIND_ALL);
$pluginhost->load($user_plugins, $pluginhost::KIND_USER, $owner_uid);
$pluginhost->load_data();
foreach ($pluginhost->get_hooks($pluginhost::HOOK_FEED_FETCHED) as $plugin) {
$feed_data = $plugin->hook_feed_fetched($feed_data);
}
if (!$rss) {
$rss = new SimplePie();
$rss->set_sanitize_class("SanitizeDummy");
// simplepie ignores the above and creates default sanitizer anyway,
// so let's override it...
$rss->sanitize = new SanitizeDummy();
$rss->set_output_encoding('UTF-8');
$rss->set_raw_data($feed_data);
$rss->enable_cache(false);
@$rss->init();
}
// print_r($rss);
$feed = db_escape_string($link, $feed);
if (!$rss->error()) {
// cache data for later
if (!$auth_pass && !$auth_login && is_writable(CACHE_DIR . "/simplepie")) {
$rss_data = serialize($rss);
$new_rss_hash = sha1($rss_data);
if ($new_rss_hash != $rss_hash) {
if ($debug_enabled) {
_debug("update_rss_feed: saving $cache_filename");
}
@file_put_contents($cache_filename, serialize($rss));
}
}
// 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", $rss);
if ($debug_enabled) {
_debug("update_rss_feed: processing feed data...");
}
// db_query($link, "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)";
}
$result = db_query($link, "SELECT title,site_url,owner_uid,
(favicon_last_checked IS NULL OR $favicon_interval_qpart) AS
favicon_needs_check
FROM ttrss_feeds WHERE id = '$feed'");
$registered_title = db_fetch_result($result, 0, "title");
$orig_site_url = db_fetch_result($result, 0, "site_url");
$favicon_needs_check = sql_bool_to_bool(db_fetch_result($result, 0,
"favicon_needs_check"));
$owner_uid = db_fetch_result($result, 0, "owner_uid");
$site_url = db_escape_string($link, mb_substr(rewrite_relative_url($fetch_url, $rss->get_link()), 0, 245));
if ($favicon_needs_check || $force_refetch) {
if ($debug_enabled) {
_debug("update_rss_feed: checking favicon...");
}
check_feed_favicon($site_url, $feed, $link);
$favicon_file = ICONS_DIR . "/$feed.ico";
if (file_exists($favicon_file)) {
require_once "colors.php";
$favicon_color = db_escape_string($link,
calculate_avg_color($favicon_file));
$favicon_colorstring = ",favicon_avg_color = '".$favicon_color."'";
}
db_query($link, "UPDATE ttrss_feeds SET favicon_last_checked = NOW()
$favicon_colorstring
WHERE id = '$feed'");
}
if (!$registered_title || $registered_title == "[Unknown]") {
$feed_title = db_escape_string($link, $rss->get_title());
if ($debug_enabled) {
_debug("update_rss_feed: registering title: $feed_title");
}
db_query($link, "UPDATE ttrss_feeds SET
title = '$feed_title' WHERE id = '$feed'");
}
if ($site_url && $orig_site_url != $site_url) {
db_query($link, "UPDATE ttrss_feeds SET
site_url = '$site_url' WHERE id = '$feed'");
}
if ($debug_enabled) {
_debug("update_rss_feed: loading filters & labels...");
}
$filters = load_filters($link, $feed, $owner_uid);
$labels = get_all_labels($link, $owner_uid);
if ($debug_enabled) {
//print_r($filters);
_debug("update_rss_feed: " . count($filters) . " filters loaded.");
}
$items = $rss->get_items();
if (!is_array($items)) {
if ($debug_enabled) {
_debug("update_rss_feed: no articles found.");
}
db_query($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;
$links = $rss->get_links('hub');
if ($links && is_array($links)) {
foreach ($links as $l) {
$feed_hub_url = $l;
break;
}
}
if ($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 ($items as $item) {
if ($_REQUEST['xdebug'] == 3) {
print_r($item);
}
$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";
$entry_guid_hashed = db_escape_string($link, 'SHA1:' . sha1($entry_guid));
if ($debug_enabled) {
_debug("update_rss_feed: guid $entry_guid / $entry_guid_hashed");
}
$entry_timestamp = "";
$entry_timestamp = strtotime($item->get_date());
if ($entry_timestamp == -1 || !$entry_timestamp || $entry_timestamp > time()) {
$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]");
}
$entry_title = html_entity_decode($item->get_title());
$entry_link = rewrite_relative_url($site_url, $item->get_link());
if ($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_content = $item->get_content();
if (!$entry_content) $entry_content = $item->get_description();
if ($_REQUEST["xdebug"] == 2) {
print "update_rss_feed: content: ";
print $entry_content;
print "\n";
}
$entry_comments = $item->data["comments"];
if ($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();
$entry_author = db_escape_string($link, $entry_author);
}
$entry_guid = db_escape_string($link, mb_substr($entry_guid, 0, 245));
$entry_comments = db_escape_string($link, mb_substr($entry_comments, 0, 245));
$entry_author = db_escape_string($link, mb_substr($entry_author, 0, 245));
$num_comments = $item->get_item_tags('http://purl.org/rss/1.0/modules/slash/', 'comments');
if (is_array($num_comments) && is_array($num_comments[0])) {
$num_comments = (int) $num_comments[0]["data"];
} else {
$num_comments = 0;
}
if ($debug_enabled) {
_debug("update_rss_feed: num_comments: $num_comments");
_debug("update_rss_feed: looking for tags [1]...");
}
// 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, $tobj->get_term());
}
}
if ($debug_enabled) {
_debug("update_rss_feed: category tags:");
print_r($additional_tags);
}
if ($debug_enabled) {
_debug("update_rss_feed: looking for tags [2]...");
}
$entry_tags = array_unique($additional_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);
}
if ($debug_enabled) {
_debug("update_rss_feed: done collecting data.");
}
// TODO: less memory-hungry implementation
if ($debug_enabled) {
_debug("update_rss_feed: applying plugin filters..");
}
// FIXME not sure if owner_uid is a good idea here, we may have a base entry without user entry (?)
$result = db_query($link, "SELECT plugin_data,title,content,link,tag_cache,author FROM ttrss_entries, ttrss_user_entries
WHERE ref_id = id AND (guid = '".db_escape_string($link, $entry_guid)."' OR guid = '$entry_guid_hashed') AND owner_uid = $owner_uid");
if (db_num_rows($result) != 0) {
$entry_plugin_data = db_fetch_result($result, 0, "plugin_data");
$stored_article = array("title" => db_fetch_result($result, 0, "title"),
"content" => db_fetch_result($result, 0, "content"),
"link" => db_fetch_result($result, 0, "link"),
"tags" => explode(",", db_fetch_result($result, 0, "tag_cache")),
"author" => db_fetch_result($result, 0, "author"));
} else {
$entry_plugin_data = "";
$stored_article = array();
}
$article = array("owner_uid" => $owner_uid, // read only
"guid" => $entry_guid, // read only
"title" => $entry_title,
"content" => $entry_content,
"link" => $entry_link,
"tags" => $entry_tags,
"plugin_data" => $entry_plugin_data,
"author" => $entry_author,
"stored" => $stored_article);
foreach ($pluginhost->get_hooks($pluginhost::HOOK_ARTICLE_FILTER) as $plugin) {
$article = $plugin->hook_article_filter($article);
}
$entry_tags = $article["tags"];
$entry_guid = db_escape_string($link, $entry_guid);
$entry_title = db_escape_string($link, $article["title"]);
$entry_author = db_escape_string($link, $article["author"]);
$entry_link = db_escape_string($link, $article["link"]);
$entry_plugin_data = db_escape_string($link, $article["plugin_data"]);
$entry_content = $article["content"]; // escaped below
if ($debug_enabled) {
_debug("update_rss_feed: plugin data: $entry_plugin_data");
}
if ($cache_images && is_writable(CACHE_DIR . '/images'))
cache_images($entry_content, $site_url, $debug_enabled);
$entry_content = db_escape_string($link, $entry_content, false);
$content_hash = "SHA1:" . sha1($entry_content);
db_query($link, "BEGIN");
$result = db_query($link, "SELECT id FROM ttrss_entries
WHERE (guid = '$entry_guid' OR guid = '$entry_guid_hashed')");
if (db_num_rows($result) == 0) {
if ($debug_enabled) {
_debug("update_rss_feed: base guid [$entry_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,
cached_content,
no_orig_date,
date_updated,
date_entered,
comments,
num_comments,
plugin_data,
author)
VALUES
('$entry_title',
'$entry_guid_hashed',
'$entry_link',
'$entry_timestamp_fmt',
'$entry_content',
'$content_hash',
'',
$no_orig_date,
NOW(),
'$date_feed_processed',
'$entry_comments',
'$num_comments',
'$entry_plugin_data',
'$entry_author')");
$article_labels = array();
} 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'");
$article_labels = get_article_labels($link, $base_entry_id, $owner_uid);
}
// now it should exist, if not - bad luck then
$result = db_query($link, "SELECT
id,content_hash,no_orig_date,title,plugin_data,guid,
".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 = '$entry_guid' OR guid = '$entry_guid_hashed'");
$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"));
$orig_plugin_data = db_fetch_result($result, 0, "plugin_data");
$ref_id = db_fetch_result($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");
db_query($link, "UPDATE ttrss_entries SET guid = '$entry_guid_hashed' WHERE
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';
}
// N-grams
if (DB_TYPE == "pgsql" and defined('_NGRAM_TITLE_DUPLICATE_THRESHOLD')) {
$result = db_query($link, "SELECT COUNT(*) AS similar FROM
ttrss_entries,ttrss_user_entries
WHERE ref_id = id AND updated >= NOW() - INTERVAL '7 day'
AND similarity(title, '$entry_title') >= "._NGRAM_TITLE_DUPLICATE_THRESHOLD."
AND owner_uid = $owner_uid");
$ngram_similar = db_fetch_result($result, 0, "similar");
if ($debug_enabled) {
_debug("update_rss_feed: N-gram similar results: $ngram_similar");
}
if ($ngram_similar > 0) {
$unread = 'false';
}
}
$last_marked = ($marked == 'true') ? 'NOW()' : 'NULL';
$last_published = ($published == 'true') ? 'NOW()' : 'NULL';
$result = db_query($link,
"INSERT INTO ttrss_user_entries
(ref_id, owner_uid, feed_id, unread, last_read, marked,
published, score, tag_cache, label_cache, uuid,
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') {
$rss_link = get_self_url_prefix() .
"/public.php?op=rss&id=-2&key=" .
get_feed_access_key($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;
$update_insignificant = true;
}
if ($entry_plugin_data != $orig_plugin_data) {
$post_needs_update = true;
$update_insignificant = true;
}
if ($content_hash != $orig_content_hash) {
$post_needs_update = true;
$update_insignificant = false;
}
if (db_escape_string($link, $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_hashed 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 = '$num_comments',
plugin_data = '$entry_plugin_data'
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 = '$ref_id'");
}
}
}
}
db_query($link, "COMMIT");
if ($debug_enabled) {
_debug("update_rss_feed: assigning labels...");
}
assign_article_to_label_filters($link, $entry_ref_id, $article_filters,
$owner_uid, $article_labels);
if ($debug_enabled) {
_debug("update_rss_feed: looking for enclosures...");
}
// enclosures
$enclosures = array();
$encs = $item->get_enclosures();
if (is_array($encs)) {
foreach ($encs as $e) {
$e_item = array(
$e->link, $e->type, $e->length);
array_push($enclosures, $e_item);
}
}
if ($debug_enabled) {
_debug("update_rss_feed: article enclosures:");
print_r($enclosures);
}
db_query($link, "BEGIN");
foreach ($enclosures as $enc) {
$enc_url = db_escape_string($link, $enc[0]);
$enc_type = db_escape_string($link, $enc[1]);
$enc_dur = db_escape_string($link, $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["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
$boring_tags = trim_array(explode(",", mb_strtolower(get_pref($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);
$tag = db_escape_string($link, $tag);
if (!tag_is_valid($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);
$tags_str = db_escape_string($link, 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 (get_pref($link, "AUTO_ASSIGN_LABELS", $owner_uid, false)) {
if ($debug_enabled) {
_debug("update_rss_feed: auto-assigning labels...");
}
foreach ($labels as $label) {
$caption = preg_quote($label["caption"]);
if ($caption && preg_match("/\b$caption\b/i", "$tags_str " . strip_tags($entry_content) . " $entry_title")) {
if (!labels_contains_caption($article_labels, $caption)) {
label_add_article($link, $entry_ref_id, $caption, $owner_uid);
}
}
}
}
if ($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 {
$error_msg = db_escape_string($link, mb_substr($rss->error(), 0, 245));
if ($debug_enabled) {
_debug("update_rss_feed: error fetching feed: $error_msg");
}
db_query($link,
"UPDATE ttrss_feeds SET last_error = '$error_msg',
last_updated = NOW() WHERE id = '$feed'");
}
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 ($file_content && strlen($file_content) > 1024) {
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_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 $file) {
if (!file_is_locked($file) && time() - filemtime($file) > 86400*2) {
unlink($file);
++$num_deleted;
}
}
}
}
if ($debug) _debug("Removed $num_deleted files.");
}
function expire_cached_files($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("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, $timestamp, $author, $tags) {
$matches = array();
foreach ($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 = $rule["reg_exp"];
$rule_inverse = $rule["inverse"];
if (!$reg_exp)
continue;
switch ($rule["type"]) {
case "title":
$match = @preg_match("/$reg_exp/i", $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/i", $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/i", $title) || @preg_match("/$reg_exp/i", $content));
break;
case "link":
$match = @preg_match("/$reg_exp/i", $link);
break;
case "author":
$match = @preg_match("/$reg_exp/i", $author);
break;
case "tag":
$tag_string = join(",", $tags);
$match = @preg_match("/$reg_exp/i", $tag_string);
break;
}
if ($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 ($filter_match) {
foreach ($filter["actions"] AS $action) {
array_push($matches, $action);
// if Stop action encountered, perform no further processing
if ($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] == $caption) {
return true;
}
}
return false;
}
function assign_article_to_label_filters($link, $id, $filters, $owner_uid, $article_labels) {
foreach ($filters as $f) {
if ($f["type"] == "label") {
if (!labels_contains_caption($article_labels, $f["param"])) {
label_add_article($link, $id, $f["param"], $owner_uid);
}
}
}
}
function make_guid_from_title($title) {
return preg_replace("/[ \"\',.:;]/", "-",
mb_strtolower(strip_tags($title), 'utf-8'));
}
?>
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