summaryrefslogtreecommitdiffstats
path: root/modules-available/runmode/inc/runmode.inc.php
blob: 916866f1de1bbb9d8288d0487dc6b5b1a516f4c2 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
<?php

class RunMode
{

	private static $moduleConfigs = array();

	/**
	 * Get runmode config for a specific module
	 *
	 * @param string $module name of module
	 * @return RunModeModuleConfig|false
	 */
	public static function getModuleConfig($module)
	{
		if (isset(self::$moduleConfigs[$module]))
			return self::$moduleConfigs[$module];
		if (Module::get($module) === false)
			return false;
		$file = 'modules/' . $module . '/hooks/runmode/config.json';
		if (!file_exists($file))
			return false;
		return (self::$moduleConfigs[$module] = new RunModeModuleConfig($file));
	}

	public static function setRunMode($machineuuid, $moduleId, $modeId, $modeData)
	{
		// - Check if module provides runmode config at all
		$config = self::getModuleConfig($moduleId);
		if ($config === false)
			return false;
		// - Check if machine exists
		$machine = Statistics::getMachine($machineuuid, Machine::NO_DATA);
		if ($machine === false)
			return false;
		// - Add/replace entry in runmode table
		if (is_null($modeId)) {
			Database::exec('DELETE FROM runmode WHERE machineuuid = :machineuuid', compact('machineuuid'));
		} else {
			Database::exec('INSERT INTO runmode (machineuuid, module, modeid, modedata)'
				. ' VALUES (:uuid, :module, :modeid, :modedata)'
				. ' ON DUPLICATE KEY UPDATE module = VALUES(module), modeid = VALUES(modeid), modedata = VALUES(modedata)', array(
					'uuid' => $machineuuid,
					'module' => $moduleId,
					'modeid' => $modeId,
					'modedata' => $modeData,
			));
		}
		return true;
	}

	/**
	 * @param string|\Module $module
	 * @return array
	 */
	public static function getForModule($module, $groupByModeId = false)
	{
		if (is_object($module)) {
			$module = $module->getIdentifier();
		}
		$res = Database::simpleQuery('SELECT machineuuid, modeid, modedata FROM runmode WHERE module = :module',
			compact('module'));
		$ret = array();
		while ($row = $res->fetch(PDO::FETCH_ASSOC)) {
			if ($groupByModeId) {
				if (!isset($ret[$row['modeid']])) {
					$ret[$row['modeid']] = array();
				}
				$ret[$row['modeid']][] = $row;
			} else {
				$ret[$row['machineuuid']] = $row;
			}
		}
		return $ret;
	}

	/**
	 * @param string|\Module $module
	 * @param string $modeId
	 * @param bool $detailed whether to return meta data about machine, not just machineuuid
	 * @return array
	 */
	public static function getForMode($module, $modeId, $detailed = false)
	{
		if (is_object($module)) {
			$module = $module->getIdentifier();
		}
		if ($detailed) {
			$sel = ', m.hostname, m.clientip, m.macaddr, m.locationid';
			$join = 'INNER JOIN machine m USING (machineuuid)';
		} else {
			$join = $sel = '';
		}
		$res = Database::simpleQuery(
			"SELECT r.machineuuid, r.modedata $sel
				FROM runmode r $join
				WHERE module = :module AND modeid = :modeId",
			compact('module', 'modeId'));
		$ret = array();
		while ($row = $res->fetch(PDO::FETCH_ASSOC)) {
			if ($detailed && empty($row['hostname'])) {
				$row['hostname'] = $row['clientip'];
			}
			$ret[] = $row;
		}
		return $ret;
	}

	/**
	 * Get display name of a module's mode. If the module doesn't have a getModeName
	 * method configured, the modeId is simply returned. Otherwise the return value of
	 * that method is passed through. getModeName by contract should return false if
	 * the module doesn't think the given modeId exists.
	 *
	 * @param string|\Module $module
	 * @param string $modeId
	 * @return string|bool mode name if known, modeId as fallback, or false if mode is not known by module
	 */
	public static function getModeName($module, $modeId)
	{
		if (is_object($module)) {
			$module = $module->getIdentifier();
		}
		$conf = self::getModuleConfig($module);
		if ($conf === false || $conf->getModeName === false || !Module::isAvailable($module))
			return $modeId;
		return call_user_func($conf->getModeName, $modeId);
	}

}

/*                *\
|* Helper classes *|
\*                */

/**
 * Class RunModeModuleConfig represents desired config of a runmode
 */
class RunModeModuleConfig
{
	/**
	 * @var string|false
	 */
	public $systemdDefaultTarget = false;
	/**
	 * @var string[]
	 */
	public $systemdDisableTargets = [];
	/**
	 * @var string[]
	 */
	public $systemdEnableTargets = [];
	/**
	 * @var string Name of function that turns a modeId into a string
	 */
	public $getModeName = false;
	/**
	 * @var string Name of function that is called to add additional config entries
	 */
	public $configHook = false;
	/**
	 * @var bool Consider this a normal client that should e.g. be shown in client statistics by default
	 */
	public $isClient = false;
	/**
	 * @var bool If true, config.tgz should not be downloaded by the client
	 */
	public $noSysconfig = false;

	public function __construct($file)
	{
		$data = json_decode(file_get_contents($file), true);
		if (!is_array($data))
			return;
		$this->loadType($data, 'systemdDefaultTarget', 'string');
		$this->loadType($data, 'systemdDisableTargets', 'array');
		$this->loadType($data, 'systemdEnableTargets', 'array');
		$this->loadType($data, 'getModeName', 'string');
		$this->loadType($data, 'configHook', 'string');
		$this->loadType($data, 'isClient', 'boolean');
		$this->loadType($data, 'noSysconfig', 'boolean');
	}

	private function loadType($data, $key, $type)
	{
		if (!isset($data[$key]))
			return false;
		if (is_string($type) && gettype($data[$key]) !== $type)
			return false;
		if (is_array($type) && !in_array(gettype($data[$key]), $type))
			return false;
		$this->{$key} = $data[$key];
		return true;
	}
}