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1 | #!/usr/bin/php | |
2 | <?php | |
3 | // this daemon runs in the background and updates all feeds | |
4 | // continuously | |
5 | ||
6 | // define('DEFAULT_ERROR_LEVEL', E_ALL); | |
7 | define('DEFAULT_ERROR_LEVEL', E_ERROR | E_WARNING | E_PARSE); | |
8 | ||
9 | declare(ticks = 1); | |
10 | ||
11 | define('MAGPIE_CACHE_DIR', '/var/tmp/magpie-ttrss-cache-daemon'); | |
12 | define('SIMPLEPIE_CACHE_DIR', '/var/tmp/simplepie-ttrss-cache-daemon'); | |
13 | define('DISABLE_SESSIONS', true); | |
14 | ||
15 | require_once "version.php"; | |
16 | ||
17 | if (strpos(VERSION, ".99") !== false) { | |
18 | define('DAEMON_EXTENDED_DEBUG', true); | |
19 | } | |
20 | ||
21 | define('PURGE_INTERVAL', 3600); // seconds | |
22 | ||
23 | require_once "sanity_check.php"; | |
24 | require_once "config.php"; | |
25 | ||
26 | if (!ENABLE_UPDATE_DAEMON) { | |
27 | die("Please enable option ENABLE_UPDATE_DAEMON in config.php\n"); | |
28 | } | |
29 | ||
30 | require_once "db.php"; | |
31 | require_once "db-prefs.php"; | |
32 | require_once "functions.php"; | |
33 | require_once "magpierss/rss_fetch.inc"; | |
34 | ||
35 | error_reporting(DEFAULT_ERROR_LEVEL); | |
36 | ||
37 | function sigint_handler() { | |
38 | unlink(LOCK_DIRECTORY . "/update_daemon.lock"); | |
39 | die("Received SIGINT. Exiting.\n"); | |
40 | } | |
41 | ||
42 | function sigalrm_handler() { | |
43 | die("received SIGALRM, hang in feed update?\n"); | |
44 | } | |
45 | ||
46 | pcntl_signal(SIGINT, sigint_handler); | |
47 | pcntl_signal(SIGALRM, sigalrm_handler); | |
48 | ||
49 | $lock_handle = make_lockfile("update_daemon.lock"); | |
50 | ||
51 | if (!$lock_handle) { | |
52 | die("error: Can't create lockfile ($lock_filename). ". | |
53 | "Maybe another daemon is already running.\n"); | |
54 | } | |
55 | ||
56 | $link = db_connect(DB_HOST, DB_USER, DB_PASS, DB_NAME); | |
57 | ||
58 | if (!$link) { | |
59 | if (DB_TYPE == "mysql") { | |
60 | print mysql_error(); | |
61 | } | |
62 | // PG seems to display its own errors just fine by default. | |
63 | return; | |
64 | } | |
65 | ||
66 | if (DB_TYPE == "pgsql") { | |
67 | pg_query("set client_encoding = 'utf-8'"); | |
68 | pg_set_client_encoding("UNICODE"); | |
69 | } else { | |
70 | if (defined('MYSQL_CHARSET') && MYSQL_CHARSET) { | |
71 | db_query($link, "SET NAMES " . MYSQL_CHARSET); | |
72 | // db_query($link, "SET CHARACTER SET " . MYSQL_CHARSET); | |
73 | } | |
74 | } | |
75 | ||
76 | $last_purge = 0; | |
77 | ||
78 | while (true) { | |
79 | ||
80 | if (!make_stampfile('update_daemon.stamp')) { | |
81 | print "error: unable to create stampfile"; | |
82 | die; | |
83 | } | |
84 | ||
85 | if (time() - $last_purge > PURGE_INTERVAL) { | |
86 | _debug("Purging old posts (random 30 feeds)..."); | |
87 | global_purge_old_posts($link, true, 30); | |
88 | $last_purge = time(); | |
89 | } | |
90 | ||
91 | // FIXME: get all scheduled updates w/forced refetch | |
92 | // Stub, until I figure out if it is really needed. | |
93 | ||
94 | # $result = db_query($link, "SELECT * FROM ttrss_scheduled_updates ORDER BY id"); | |
95 | # while ($line = db_fetch_assoc($result)) { | |
96 | # print "Scheduled feed update: " . $line["feed_id"] . ", UID: " . | |
97 | # $line["owner_uid"] . "\n"; | |
98 | # } | |
99 | ||
100 | // Process all other feeds using last_updated and interval parameters | |
101 | ||
102 | $random_qpart = sql_random_function(); | |
103 | ||
104 | /* | |
105 | ttrss_entries.date_entered < NOW() - INTERVAL '$purge_interval days'"); | |
106 | } | |
107 | ||
108 | $rows = pg_affected_rows($result); | |
109 | ||
110 | } else { | |
111 | ||
112 | $result = db_query($link, "DELETE FROM ttrss_user_entries | |
113 | USING ttrss_user_entries, ttrss_entries | |
114 | WHERE ttrss_entries.id = ref_id AND | |
115 | marked = false AND | |
116 | feed_id = '$feed_id' AND | |
117 | ttrss_entries.date_entered < DATE_SUB(NOW(), INTERVAL $purge_interval DAY)"); */ | |
118 | ||
119 | if (DAEMON_UPDATE_LOGIN_LIMIT > 0) { | |
120 | if (DB_TYPE == "pgsql") { | |
121 | $login_thresh_qpart = "AND ttrss_users.last_login >= NOW() - INTERVAL '".DAEMON_UPDATE_LOGIN_LIMIT." days'"; | |
122 | } else { | |
123 | $login_thresh_qpart = "AND ttrss_users.last_login >= DATE_SUB(NOW(), INTERVAL ".DAEMON_UPDATE_LOGIN_LIMIT." DAY)"; | |
124 | } | |
125 | } else { | |
126 | $login_thresh_qpart = ""; | |
127 | } | |
128 | ||
129 | if (DB_TYPE == "pgsql") { | |
130 | $update_limit_qpart = "AND ttrss_feeds.last_updated < NOW() - INTERVAL '".(DAEMON_SLEEP_INTERVAL*2)." seconds'"; | |
131 | } else { | |
132 | $update_limit_qpart = "AND ttrss_feeds.last_updated < DATE_SUB(NOW(), INTERVAL ".(DAEMON_SLEEP_INTERVAL*2)." SECOND)"; | |
133 | } | |
134 | ||
135 | if (DB_TYPE == "pgsql") { | |
136 | $updstart_thresh_qpart = "AND (ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < NOW() - INTERVAL '120 seconds')"; | |
137 | } else { | |
138 | $updstart_thresh_qpart = "AND (ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < DATE_SUB(NOW(), INTERVAL 120 SECOND))"; | |
139 | } | |
140 | ||
141 | $result = db_query($link, "SELECT feed_url,ttrss_feeds.id,owner_uid, | |
142 | SUBSTRING(last_updated,1,19) AS last_updated, | |
143 | update_interval | |
144 | FROM | |
145 | ttrss_feeds,ttrss_users | |
146 | WHERE | |
147 | ttrss_users.id = owner_uid $login_thresh_qpart $update_limit_qpart | |
148 | $updstart_thresh_qpart | |
149 | ORDER BY $random_qpart DESC LIMIT " . DAEMON_FEED_LIMIT); | |
150 | ||
151 | $user_prefs_cache = array(); | |
152 | ||
153 | _debug(sprintf("Scheduled %d feeds to update...\n", db_num_rows($result))); | |
154 | ||
155 | while ($line = db_fetch_assoc($result)) { | |
156 | ||
157 | $upd_intl = $line["update_interval"]; | |
158 | $user_id = $line["owner_uid"]; | |
159 | ||
160 | if (!$upd_intl || $upd_intl == 0) { | |
161 | if (!$user_prefs_cache[$user_id]['DEFAULT_UPDATE_INTERVAL']) { | |
162 | $upd_intl = get_pref($link, 'DEFAULT_UPDATE_INTERVAL', $user_id); | |
163 | $user_prefs_cache[$user_id]['DEFAULT_UPDATE_INTERVAL'] = $upd_intl; | |
164 | } else { | |
165 | $upd_intl = $user_prefs_cache[$user_id]['DEFAULT_UPDATE_INTERVAL']; | |
166 | } | |
167 | } | |
168 | ||
169 | if ($upd_intl < 0) { | |
170 | # print "Updates disabled.\n"; | |
171 | continue; | |
172 | } | |
173 | ||
174 | _debug("Feed: " . $line["feed_url"] . ", " . $line["last_updated"]); | |
175 | ||
176 | // _debug(sprintf("\tLU: %d, INTL: %d, UID: %d) ", | |
177 | // time() - strtotime($line["last_updated"]), $upd_intl*60, $user_id)); | |
178 | ||
179 | if (!$line["last_updated"] || | |
180 | time() - strtotime($line["last_updated"]) > ($upd_intl * 60)) { | |
181 | ||
182 | _debug("Updating..."); | |
183 | ||
184 | pcntl_alarm(300); | |
185 | ||
186 | update_rss_feed($link, $line["feed_url"], $line["id"], true); | |
187 | ||
188 | pcntl_alarm(0); | |
189 | ||
190 | sleep(1); // prevent flood (FIXME make this an option?) | |
191 | } else { | |
192 | _debug("Update not needed."); | |
193 | } | |
194 | } | |
195 | ||
196 | if (DAEMON_SENDS_DIGESTS) send_headlines_digests($link); | |
197 | ||
198 | _debug("Sleeping for " . DAEMON_SLEEP_INTERVAL . " seconds..."); | |
199 | ||
200 | sleep(DAEMON_SLEEP_INTERVAL); | |
201 | } | |
202 | ||
203 | db_close($link); | |
204 | ||
205 | ?> |