/**
* Returns the statuses of machines in the machine table of their
* fetchers and queue_server as well as the name and url's of these machines
*
* @param array $machines an array of machines to check the status for
* @return array a list of machines, together with all their properties
* and the statuses of their fetchers and queue_servers
*/
function getMachineStatuses($machines = array())
{
$num_machines = count($machines);
$time = time();
$session = md5($time . AUTH_KEY);
for ($i = 0; $i < $num_machines; $i++) {
$hash_url = crawlHash($machines[$i]["URL"]);
$machines[$i][CrawlConstants::URL] = $machines[$i]["URL"] . "?c=machine&a=statuses&time={$time}" . "&session={$session}&arg={$hash_url}";
}
$statuses = FetchUrl::getPages($machines);
for ($i = 0; $i < $num_machines; $i++) {
foreach ($statuses as $status) {
if ($machines[$i][CrawlConstants::URL] == $status[CrawlConstants::URL]) {
$pre_status = json_decode($status[CrawlConstants::PAGE], true);
if (is_array($pre_status)) {
$machines[$i]["STATUSES"] = $pre_status;
} else {
$machines[$i]["STATUSES"] = "NOT_CONFIGURED_ERROR";
}
}
}
}
$sql = "SELECT * FROM ACTIVE_FETCHER";
$result = $this->db->execute($sql);
if (!$result) {
return $machines;
}
$active_fetchers = array();
while ($row = $this->db->fetchArray($result)) {
for ($i = 0; $i < $num_machines; $i++) {
if ($machines[$i]['NAME'] == $row['NAME']) {
if (!isset($machines[$i]["STATUSES"]["fetcher"][$row['FETCHER_ID']])) {
$machines[$i]["STATUSES"]["fetcher"][$row['FETCHER_ID']] = 0;
}
}
}
}
stringROrderCallback("", "", "NAME");
if ($machines != array()) {
usort($machines, "stringROrderCallback");
}
$name_server_statuses = CrawlDaemon::statuses();
$machines['NAME_SERVER']['news_updater'] = 0;
if (isset($name_server_statuses['news_updater'])) {
$machines['NAME_SERVER']['news_updater'] = 1;
}
return $machines;
}
/**
* Used to start/stop a queue_server/fetcher of the current Yioop instance
* based on the queue_server and fetcher fields of the current $_REQUEST
*/
function update()
{
$statuses = CrawlDaemon::statuses();
if (isset($_REQUEST['queue_server'])) {
if ($_REQUEST['queue_server'] == "true" && !isset($statuses["queue_server"][-1])) {
CrawlDaemon::start("queue_server", 'none', self::INDEXER, 0);
CrawlDaemon::start("queue_server", 'none', self::SCHEDULER, 2);
} else {
if ($_REQUEST['queue_server'] == "false" && isset($statuses["queue_server"][-1])) {
CrawlDaemon::stop("queue_server");
}
}
}
if (isset($_REQUEST['mirror'])) {
if ($_REQUEST['mirror'] == "true" && !isset($statuses["mirror"][-1])) {
CrawlDaemon::start("mirror");
} else {
if ($_REQUEST['mirror'] == "false" && isset($statuses["mirror"][-1])) {
CrawlDaemon::stop("mirror");
}
}
}
if (isset($_REQUEST['fetcher']) && is_array($_REQUEST['fetcher'])) {
foreach ($_REQUEST['fetcher'] as $index => $value) {
if ($value == "true" && !isset($statuses["fetcher"][$index])) {
CrawlDaemon::start("fetcher", "{$index}");
} else {
if ($value == "false" && isset($statuses["fetcher"][$index])) {
CrawlDaemon::stop("fetcher", "{$index}");
}
}
}
}
}
