/
fogservice.class.php
1088 lines (1086 loc) · 36.3 KB
/
fogservice.class.php
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<?php
/**
* Handles the fog linux services
*
* PHP version 5
*
* @category FOGService
* @package FOGProject
* @author Tom Elliott <tommygunsster@gmail.com>
* @license http://opensource.org/licenses/gpl-3.0 GPLv3
* @link https://fogproject.org
*/
/**
* Handles the fog linux services
*
* @category FOGService
* @package FOGProject
* @author Tom Elliott <tommygunsster@gmail.com>
* @license http://opensource.org/licenses/gpl-3.0 GPLv3
* @link https://fogproject.org
*/
abstract class FOGService extends FOGBase
{
/**
* The path for the log
*
* @var string
*/
public static $logpath = '';
/**
* Device (tty) to output to
*
* @var string
*/
public static $dev = '';
/**
* The log file name.
*
* @var string
*/
public static $log = '';
/**
* Sleep time
*
* @var int
*/
public static $zzz = '';
/**
* Process references
*
* @var array
*/
public $procRef = array();
/**
* Process pipes
*
* @var array
*/
public $procPipes = array();
/**
* Node IPs we have in the database to check in service startup
*
* @var array
*/
public static $knownips = array();
/**
* Initializes the FOGService class
*
* @return void
*/
public function __construct()
{
parent::__construct();
$logpath = trim(trim(self::getSetting('SERVICE_LOG_PATH'), '/'));
if (!$logpath) {
$logpath = 'opt/fog/log';
}
self::$logpath = sprintf(
'/%s/',
$logpath
);
Route::listem(
'storagenode',
'name',
false,
[ 'isEnabled' => [1] ]
);
$StorageNodes = json_decode(
Route::getData()
)->storagenodes;
foreach ((array)$StorageNodes as &$StorageNode) {
self::$knownips[] = $StorageNode->ip;
}
}
/**
* Checks if the node runnning this is indeed the master
*
* @return array
*/
protected function checkIfNodeMaster()
{
self::getIPAddress();
$find = [
'isMaster' => [1],
'isEnabled' => [1]
];
Route::listem(
'storagenode',
'name',
false,
$find
);
$StorageNodes = json_decode(
Route::getData()
);
$StorageNodes = $StorageNodes->storagenodes;
foreach ((array)$StorageNodes as &$StorageNode) {
$ip = self::resolveHostname(
$StorageNode->ip
);
if (!in_array($ip, self::$ips)) {
continue;
}
$MasterIDs[] = $StorageNode->id;
}
$StorageNodes = self::getClass('StorageNodeManager')->find(
['id' => $MasterIDs]
);
self::$HookManager->processEvent(
'CHECK_NODE_MASTERS',
array(
'StorageNodes' => $StorageNodes,
'FOGServiceClass' => &$this,
'MasterIDs' => &$MasterIDs
)
);
if (count($StorageNodes) > 0) {
return $StorageNodes;
}
throw new Exception(
_(' | This is not the master node')
);
}
/**
* Wait to ensure the network interface is ready
*
* @return void
*/
public function waitInterfaceReady()
{
self::getIPAddress(true);
if (!count(self::$ips) || !array_intersect(self::$knownips, self::$ips)) {
self::outall(
sprintf(
'%s: %s',
_('Interface not ready, waiting for it to come up'),
self::getSetting('FOG_WEB_HOST')
)
);
sleep(10);
$this->waitInterfaceReady();
return;
}
foreach (self::$ips as &$ip) {
self::outall(
_("Interface Ready with IP Address: $ip")
);
unset($ip);
}
}
/**
* Wait to ensure the DB is ready
*
* @return void
*/
public function waitDbReady()
{
if (DatabaseManager::getLink()) {
return;
}
self::outall(
sprintf(
'FOGService: %s - %s',
get_class($this),
_('Waiting for mysql to be available')
)
);
sleep(10);
$this->waitDbReady();
}
/**
* Displays the banner for fog services
*
* @return void
*/
public function getBanner()
{
ob_start();
echo "\n";
echo "==================================\n";
echo "=== ==== ===== ====\n";
echo "=== ========= == === == ===\n";
echo "=== ======== ==== == ==== ===\n";
echo "=== ======== ==== == =========\n";
echo "=== ==== ==== == =========\n";
echo "=== ======== ==== == === ===\n";
echo "=== ======== ==== == ==== ===\n";
echo "=== ========= == === == ===\n";
echo "=== ========== ===== ====\n";
echo "==================================\n";
echo "===== Free Opensource Ghost ======\n";
echo "==================================\n";
echo "============ Credits =============\n";
echo "= https://fogproject.org/Credits =\n";
echo "==================================\n";
echo "== Released under GPL Version 3 ==\n";
echo "==================================\n";
echo "\n";
self::outall(ob_get_clean());
}
/**
* Outputs the string passed
*
* @param string $string the string to output
*
* @return void
*/
public function outall($string)
{
self::wlog("$string\n", static::$log);
return;
}
/**
* Get's the current datetime
*
* @return string
*/
public static function getDateTime()
{
return self::niceDate()->format('m-d-y g:i:s a');
}
/**
* Outputs the passed string to the log
*
* @param string $string the string to write to log
* @param string $path the log path to write to
*
* @return void
*/
protected static function wlog($string, $path)
{
if (file_exists($path)) {
$filesize = (double)self::getFilesize($path);
$max_size = (double)self::getSetting('SERVICE_LOG_SIZE');
if (!$max_size) {
$max_size = 500000;
}
if ($filesize >= $max_size) {
unlink($path);
}
}
$fh = fopen($path, 'ab');
if (!$fh) {
return;
}
fwrite(
$fh,
sprintf(
'[%s] %s',
self::getDateTime(),
$string
)
);
fclose($fh);
}
/**
* Attempts to start the service
*
* @return void
*/
public function serviceStart()
{
self::outall(
sprintf(
' * Starting %s Service',
get_class($this)
)
);
self::outall(
sprintf(
' * Checking for new items every %s seconds',
static::$zzz
)
);
self::outall(' * Starting service loop');
return;
}
/**
* Runs the service
*
* @return void
*/
public function serviceRun()
{
$this->waitDbReady();
$tmpTime = self::getSetting(static::$sleeptime);
if (static::$zzz != $tmpTime) {
static::$zzz = $tmpTime;
self::outall(
sprintf(
" | Sleep time has changed to %s seconds",
static::$zzz
)
);
}
}
/**
* Replicates data without having to keep repeating
*
* @param int $myStorageGroupID this servers groupid
* @param int $myStorageNodeID this servers nodeid
* @param object $Obj that is trying to send data
* @param bool $master master->master or master->nodes
* @param mixed $fileOverride file override.
*
* @return void
*/
protected function replicateItems(
$myStorageGroupID,
$myStorageNodeID,
$Obj,
$master = false,
$fileOverride = false
) {
$itemType = $master ? 'group' : 'node';
$groupID = $myStorageGroupID;
if ($master) {
$groupID = $Obj->get('storagegroups');
}
$find = [
'isEnabled' => 1,
'storagegroupID' => $groupID
];
if ($master) {
$find['isMaster'] = [1];
}
Route::indiv(
'storagenode',
$myStorageNodeID
);
$myStorageNode = json_decode(
Route::getData()
);
if (!$myStorageNode->isMaster) {
throw new Exception(
_('This is not the master for this group')
);
}
if (!$myStorageNode->online) {
throw new Exception(
_('This node does not appear to be online')
);
}
Route::listem(
'storagenode',
'name',
false,
$find
);
$StorageNodes = json_decode(
Route::getData()
);
$StorageNodes = $StorageNodes->storagenodes;
$objType = get_class($Obj);
$groupOrNodeCount = count($StorageNodes ?: []);
$counttest = 2;
if (!$master) {
$groupOrNodeCount--;
$counttest = 1;
}
if ($groupOrNodeCount < $counttest) {
self::outall(
sprintf(
' * %s %s %s %s',
_('Not syncing'),
$objType,
_('between'),
_("{$itemType}s")
)
);
self::outall(
sprintf(
' | %s %s: %s',
$objType,
_('Name'),
$Obj->get('name')
)
);
self::outall(
sprintf(
' | %s.',
_('There are no other members to sync to')
)
);
} else {
self::outall(
sprintf(
' * %s %s %s %s %s',
_('Found'),
_($objType),
_('to transfer to'),
$groupOrNodeCount,
(
$groupOrNodeCount != 1 ?
_("{$itemType}s") :
_($itemType)
)
)
);
self::outall(
sprintf(
' | %s %s: %s',
$fileOverride ? _('File') : _($objType),
_('Name'),
$fileOverride ?: $Obj->get('name')
)
);
$getPathOfItemField = 'ftppath';
$getFileOfItemField = 'path';
if ($objType == 'Snapin') {
$getPathOfItemField = 'snapinpath';
$getFileOfItemField = 'file';
}
$myDir = sprintf(
'/%s/',
trim($myStorageNode->{$getPathOfItemField}, '/')
);
if (false === $fileOverride) {
$myFile = $Obj->get($getFileOfItemField);
} else {
$myFile = $fileOverride;
}
$myAdd = "$myDir$myFile";
$myAddItem = false;
foreach ($StorageNodes as $i => &$StorageNode) {
if ($StorageNode->id == $myStorageNodeID) {
continue;
}
if (!$StorageNode->online) {
self::outall(
sprintf(
' | %s server does not appear to be online.',
$StorageNode->name
)
);
continue;
}
$groupID = $StorageNode->storagegroupID;
if ($master
&& $groupID == $myStorageGroupID
) {
continue;
}
if ($fileOverride) {
$name = $fileOverride;
$randind = "abcdef$i";
} else {
$name = $Obj->get('name');
$randind = $i;
}
if (isset($this->procRef[$itemType])
&& isset($this->procRef[$itemType][$name])
&& isset($this->procRef[$itemType][$name][$randind])
) {
$isRunning = $this->isRunning(
$this->procRef[$itemType][$name][$randind]
);
if ($isRunning) {
self::outall(
sprintf(
'| %s: %d',
_('Replication already running with PID'),
$this->getPID(
$this->procRef[$itemType][$name][$randind]
)
)
);
continue;
}
}
if (!file_exists($myAdd)
|| !is_readable($myAdd)
) {
self::outall(
sprintf(
' * %s %s %s %s',
_('Not syncing'),
$objType,
_('between'),
_("{$itemType}s")
)
);
self::outall(
sprintf(
' | %s %s: %s',
$fileOverride ? _('File') : _($objType),
_('Name'),
$name
)
);
self::outall(
sprintf(
' | %s: %s',
_('File or path cannot be reached'),
$myAdd
)
);
continue;
}
$testip = $StorageNode->ip;
$sizeurl = sprintf('%s://%s/fog/status/getsize.php', self::$httpproto, $testip);
$hashurl = sprintf('%s://%s/fog/status/gethash.php', self::$httpproto, $testip);
self::$FOGFTP
->set('username', $StorageNode->user)
->set('password', $StorageNode->pass)
->set('host', $StorageNode->ip);
try {
self::$FOGFTP->connect();
} catch (Exception $e) {
self::outall(
sprintf(
' * Error: %s %s',
_('Cannot connect to'),
$StorageNode->name
)
);
continue;
}
$nodename = $StorageNode->name;
$username = self::$FOGFTP->get('username');
$password = self::$FOGFTP->get('password');
$ip = self::$FOGFTP->get('host');
$encpassword = urlencode($password);
$removeDir = sprintf(
'/%s/',
trim(
$StorageNode->{$getPathOfItemField},
'/'
)
);
$removeFile = $myFile;
$limitmain = self::byteconvert(
$myStorageNode->bandwidth
);
$limitsend = self::byteconvert(
$StorageNode->bandwidth
);
$limitset = "";
if ($limitmain > 0) {
$limitset = "set net:limit-total-rate 0:$limitmain;";
}
if ($limitsend > 0) {
$limitset .= "set net:limit-rate 0:$limitsend;";
}
unset($limit);
$limit = $limitset;
unset($limitset);
unset($remItem);
unset($includeFile);
$ftpstart = "ftp://$username:$encpassword@$ip";
$remotefilescheck = array();
if (is_file($myAdd)) {
$remItem = dirname("$removeDir$removeFile");
$path = $remItem;
$removeFile = basename($removeFile);
$opts = '-R -i';
$includeFile = basename($myFile);
if (!$myAddItem) {
$myAddItem = dirname($myAdd);
}
$localfilescheck[0] = $myAdd;
if (file_exists($ftpstart.$remItem."/".$removeFile)) {
$remotefilescheck[0] = sprintf(
'%s/%s',
$remItem,
$removeFile
);
}
} elseif (is_dir($myAdd)) {
$remItem = "$removeDir$removeFile";
$path = realpath($myAdd);
$localfilescheck = self::globrecursive(
"$path/**{,.}*[!.,!..]",
GLOB_BRACE
);
$remotefilescheck = self::$FOGFTP->listrecursive($remItem);
$opts = '-R';
$includeFile = '';
if (!$myAddItem) {
$myAddItem = $myAdd;
}
}
$localfilescheck = array_values(
array_filter(
array_unique($localfilescheck)
)
);
foreach ($localfilescheck as &$lfn) {
$lfn = str_replace("$path/", "", $lfn);
unset($lfn);
}
$remotefilescheck = array_values(
array_filter(
array_unique($remotefilescheck)
)
);
foreach ($remotefilescheck as &$rfn) {
$rfn = str_replace("$remItem/", "", $rfn);
unset($rfn);
}
$filescheck = array_unique(array_merge((array)$localfilescheck, (array)$remotefilescheck));
$testavail = -1;
$allsynced = true;
$resp = self::$FOGURLRequests->isAvailable($testip, 1, 80);
$avail = true;
$testavail = array_filter($resp);
$testavail = array_shift($testavail);
if (!$testavail) {
$avail = false;
}
foreach ($filescheck as $j => &$filename) {
$filesequal = false;
$lindex = array_search($filename, $localfilescheck);
$rindex = array_search($filename, $remotefilescheck);
if (!is_int($rindex)) {
$allsynced = false;
self::outall(sprintf(
' # %s: %s %s (%s)',
$name,
_('File does not exist'),
$filename,
$nodename
));
} elseif (!is_int($lindex)) {
self::outall(sprintf(
' # %s: %s %s %s %s %s',
$name,
_('File does not exist'),
'on master node, deleting',
$filename,
'on',
$nodename
));
$remotefilename = sprintf('%s%s%s', $remItem, "/", $remotefilescheck[$rindex]);
self::$FOGFTP->delete($remotefilename);
} else {
$localfilename = sprintf('%s%s%s', $path, "/", $localfilescheck[$lindex]);
$remotefilename = sprintf('%s%s%s', $remItem, "/", $remotefilescheck[$rindex]);
$localsize = self::getFilesize($localfilename);
$remotesize = null;
if ($avail) {
$rsize = self::$FOGURLRequests->process(
$sizeurl,
'POST',
['file' => base64_encode($remotefilename)]
);
$rsize = array_shift($rsize);
if (is_int($rsize)) {
$remotesize = $rsize;
} else {
// we should re-try HTTPS because we don't know about the storage node setup
// and letting curl follow the redirect doesn't work for POST requests
$sizeurl = sprintf('%s://%s/fog/status/getsize.php', 'https', $testip);
$rsize = self::$FOGURLRequests->process(
$sizeurl,
'POST',
['file' => base64_encode($remotefilename)]
);
$rsize = array_shift($rsize);
if (is_int($rsize)) {
$remotesize = $rsize;
}
}
}
if (is_null($remotesize)) {
$remotesize = self::$FOGFTP->size($remotefilename);
}
if ($localsize == $remotesize) {
$localhash = self::getHash($localfilename);
$remotehash = null;
if ($avail) {
$rhash = self::$FOGURLRequests->process(
$hashurl,
'POST',
['file' => base64_encode($remotefilename)]
);
$rhash = array_shift($rhash);
if (strlen($rhash) == 64) {
$remotehash = $rhash;
} else {
// we should re-try HTTPS because we don't know about the storage node setup
// and letting curl follow the redirect doesn't work for POST requests
$hashurl = sprintf('%s://%s/fog/status/gethash.php', 'https', $testip);
$rhash = self::$FOGURLRequests->process(
$hashurl,
'POST',
['file' => base64_encode($remotefilename)]
);
$rhash = array_shift($rhash);
if (strlen($rhash) == 64) {
$remotehash = $rhash;
}
}
}
if (is_null($remotehash)) {
if ($localsize < 10485760) {
$remotehash = hash_file('sha256', $ftpstart.$remotefilename);
} else {
$filesequal = true;
}
}
if ($localhash == $remotehash) {
$filesequal = true;
} else {
self::outall(sprintf(
' # %s: %s - %s: %s != %s',
$name,
_('File hash mismatch'),
$filename,
$localhash,
$remotehash
));
}
} else {
self::outall(sprintf(
' # %s: %s - %s: %s != %s',
$name,
_('File size mismatch'),
$filename,
$localsize,
$remotesize
));
}
if ($filesequal != true) {
$allsynced = false;
self::outall(sprintf(' # %s: %s %s', $name, _('Deleting remote file'), $filename));
self::$FOGFTP->delete($remotefilename);
} else {
self::outall(sprintf(
' # %s: %s %s (%s)',
$name,
_('No need to sync'),
$filename,
$nodename
));
continue;
}
}
unset($filename);
}
self::$FOGFTP->close();
if ($allsynced) {
self::outall(' * ' . _('All files synced for this item.'));
continue;
}
$logname = sprintf(
'%s.%s.transfer.%s.log',
rtrim(
substr(
static::$log,
0,
-4
),
'.'
),
$Obj->get('name'),
$nodename
);
if (!$i) {
self::outall(
sprintf(
' * %s',
_('Starting Sync Actions')
)
);
}
$this->killTasking(
$randind,
$itemType,
$name
);
$myAddItem = escapeshellarg($myAddItem);
$remItem = escapeshellarg($remItem);
$logname = escapeshellarg($logname);
$myAddItem = trim($myAddItem, "'");
$myAddItem = sprintf(
'"%s"',
$myAddItem
);
$remItem = trim($remItem, "'");
$remItem = sprintf(
'"%s"',
$remItem
);
$logname = trim($logname, "'");
$cmd = "lftp -e 'set xfer:log 1; set xfer:log-file $logname;";
$cmd .= "set ftp:list-options -a;set net:max-retries ";
$cmd .= "10;set net:timeout 30; $limit mirror -c --parallel=20 ";
$cmd .= "$opts ";
if (!empty($includeFile)) {
$includeFile = escapeshellarg($includeFile);
$includeFile = trim($includeFile, "'");
$includeFile = sprintf(
'"%s"',
$includeFile
);
$cmd .= "$includeFile ";
}
$cmd .= "--ignore-time -vvv --exclude \".srvprivate\" ";
$cmd .= "$myAddItem $remItem;";
$cmd2 = sprintf(
"%s exit' -u $username,[Protected] $ip",
$cmd
);
$cmd .= "exit' -u $username,'$password' $ip";
self::outall(" | CMD: $cmd2");
unset($includeFile, $remItem, $myAddItem);
$this->startTasking(
$cmd,
$logname,
$randind,
$itemType,
$name
);
self::outall(
sprintf(
' | %s %s %s - %s',
_('Started sync for'),
$objType,
$name,
print_r($this->procRef[$itemType][$name][$randind], true)
)
);
unset($StorageNode);
}
}
}
/**
* Starts taskings
*
* @param string $cmd The command to start
* @param string $logname The name of the log to write to
* @param int $index The index to store tasking reference
* @param mixed $itemType The type of the item
* @param mixed $filename Filename extra
*
* @return void
*/
public function startTasking(
$cmd,
$logname,
$index = 0,
$itemType = false,
$filename = false
) {
if (isset($this->altLog)) {
$log = $this->altLog;
} else {
$log = static::$log;
}
self::wlog(_('Task started')."\n", $logname);
$descriptor = array(
0 => array('pipe', 'r'),
1 => array('file', $logname, 'a'),
2 => array('file', $log, 'a')
);
if ($itemType === false) {
$this->procRef[$index] = proc_open(
$cmd,
$descriptor,
$pipes
);
$this->procPipes[$index] = $pipes;
} else {
$this->procRef[$itemType][$filename][$index] = proc_open(
$cmd,
$descriptor,
$pipes
);
$this->procPipes[$itemType][$filename][$index] = $pipes;
}
}
/**
* Kills all child processes
*
* @param int $pid the pid to scan
* @param mixed $sig the signal to kill with
*
* @return void
*/
public function killAll($pid, $sig)
{
exec("ps -ef|awk '\$3 == '$pid' {print \$2}'", $output, $ret);
if ($ret) {
return false;
}
foreach ($output as $t) {
if ($t != $pid) {
$this->killAll($t, $sig);
}
}
posix_kill($pid, $sig);
}
/**
* Kills the tasking
*
* @param int $index the index for the item to look into
* @param mixed $itemType the type of the item
* @param string $filename the filename to close out
*
* @return bool
*/
public function killTasking(
$index = 0,
$itemType = false,
$filename = false
) {
if ($itemType === false) {
if (count((array)$this->procPipes) > 0) {
foreach ((array)$this->procPipes[$index] as $i => &$close) {
fclose($close);
unset($close);
}
unset($this->procPipes[$index]);
}
if (is_array($this->procRef) && $this->isRunning($this->procRef[$index])) {
$pid = $this->getPID($this->procRef[$index]);
if ($pid) {
$this->killAll($pid, SIGTERM);
}
proc_terminate($this->procRef[$index], SIGTERM);
proc_close($this->procRef[$index]);
return (bool)$this->isRunning($this->procRef[$index]);
} elseif ($this->isRunning($this->procRef)) {
$pid = $this->getPID($this->procRef);
if ($pid) {
$this->killAll($pid, SIGTERM);
}
proc_terminate($this->procRef, SIGTERM);
proc_close($this->procRef);
return (bool)$this->isRunning($this->procRef);
}
} else {
if (isset($this->procRef[$itemType]) &&
isset($this->procRef[$itemType][$filename]) &&
isset($this->procRef[$itemType][$filename][$index])
) {
$procRef = $this->procRef[$itemType][$filename][$index];
} else {
return true;
}
if (isset($this->procPipes[$itemType]) &&
isset($this->procPipes[$itemType][$filename]) &&
isset($this->procPipes[$itemType][$filename][$index])
) {
$pipes = $this->procPipes[$itemType][$filename][$index];
} else {
return true;
}
$isRunning = $this->isRunning(
$procRef
);
if ($isRunning) {
$pid = $this->getPID(
$procRef
);
if ($pid) {
$this->killAll($pid, SIGTERM);
}
proc_terminate($procRef, SIGTERM);
} else {
return true;
}
proc_close($procRef);
foreach ((array)$pipes as $i => &$close) {
fclose($close);
unset($close);
}
unset($pipes);
return (bool)$this->isRunning(
$procRef
);
}
}
/**
* Gets the pid of the running reference
*
* @param resouce $procRef the reference to check