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
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
|
<?php
/*
* vvv - API to Panel - vvv
*/
HandleParameters();
/**
* Handles the API parameters.
*/
function HandleParameters()
{
$get = Request::get('get', 0, 'string');
$uuid = Request::get('uuid', false, 'string');
$output = false;
if ($get === "timestamp") {
$output = array('ts' => getLastChangeTs($uuid));
} elseif ($get === "machines") {
$locationIds = LocationInfo::getLocationsOr404($uuid);
$output = array();
InfoPanel::appendMachineData($output, $locationIds, true);
$output = array_values($output);
} elseif ($get === "config") {
$type = InfoPanel::getConfig($uuid, $output);
if ($type === false) {
http_response_code(404);
die('Panel not found');
}
} elseif ($get === "pcstates") {
$locationIds = LocationInfo::getLocationsOr404($uuid);
$output = getPcStates($locationIds, $uuid);
} elseif ($get === "locationtree") {
$locationIds = LocationInfo::getLocationsOr404($uuid);
$output = getLocationTree($locationIds);
} elseif ($get === "calendar") {
$locationIds = LocationInfo::getLocationsOr404($uuid);
$output = getCalendar($locationIds);
}
if ($output !== false) {
Header('Content-Type: application/json; charset=utf-8');
echo json_encode($output);
} else {
http_response_code(404);
echo 'Unknown get option';
}
}
/**
* Get last config modification timestamp for given panel.
* This is incomplete however, as it wouldn't react to the
* linked room plan being edited, or added/removed PCs
* etc. So the advice would simply be "if you want the
* panel to reload automatically, hit the edit button
* and click save". Might even add a shortcut
* reload-button to the list of panels at some point.
*
* @param string $paneluuid panels uuid
* @return int UNIX_TIMESTAMP
*/
function getLastChangeTs($paneluuid)
{
$panel = Database::queryFirst('SELECT lastchange, locationids FROM locationinfo_panel WHERE paneluuid = :paneluuid',
compact('paneluuid'));
if ($panel === false) {
http_response_code(404);
die('Panel not found');
}
$lastChange = array((int)$panel['lastchange']);
if (!empty($panel['locationids'])) {
$res = Database::simpleQuery('SELECT lastchange FROM locationinfo_locationconfig
WHERE locationid IN (:locs)', array('locs' => explode(',', $panel['locationids'])));
while (($lc = $res->fetchColumn()) !== false) {
$lastChange[] = (int)$lc;
}
}
return max($lastChange);
}
/**
* Gets the pc states of the given locations.
*
* @param int[] $idList list of the location ids.
* @return array aggregated PC states
*/
function getPcStates($idList, $paneluuid)
{
$pcStates = array();
foreach ($idList as $id) {
$pcStates[$id] = array(
'id' => $id,
'idle' => 0,
'occupied' => 0,
'offline' => 0,
'broken' => 0,
'standby' => 0,
);
}
$locationInfoList = array();
InfoPanel::appendMachineData($locationInfoList, $idList);
$panel = Database::queryFirst('SELECT paneluuid, panelconfig FROM locationinfo_panel WHERE paneluuid = :paneluuid',
compact('paneluuid'));
$config = json_decode($panel['panelconfig'], true);
foreach ($locationInfoList as $locationInfo) {
$id = $locationInfo['id'];
foreach ($locationInfo['machines'] as $pc) {
$key = strtolower($pc['pcState']);
if (isset($pcStates[$id][$key])) {
if ($config['roomplanner']) {
if (isset($pc['x']) && isset($pc['y'])) {
$pcStates[$id][$key]++;
}
} else {
$pcStates[$id][$key]++;
}
}
}
}
return array_values($pcStates);
}
/**
* Gets the location tree of the given locations.
*
* @param int[] $idList Array list of the locations.
* @return array location tree data
*/
function getLocationTree($idList)
{
if (in_array(0, $idList)) {
return array_values(Location::getTree());
}
$locations = Location::getTree();
$ret = findLocations($locations, $idList);
return $ret;
}
function findLocations($locations, $idList)
{
$ret = array();
foreach ($locations as $location) {
if (in_array($location['locationid'], $idList)) {
$ret[] = $location;
} elseif (!empty($location['children'])) {
$ret = array_merge($ret, findLocations($location['children'], $idList));
}
}
return $ret;
}
// ########## <Calendar> ###########
/**
* Gets the calendar of the given ids.
*
* @param int[] $idList list with the location ids.
* @return array Calendar.
*/
function getCalendar($idList)
{
if (empty($idList))
return [];
// Build SQL query for multiple ids.
$query = "SELECT l.locationid, l.serverid, l.serverlocationid, s.servertype, s.credentials
FROM `locationinfo_locationconfig` AS l
INNER JOIN locationinfo_coursebackend AS s ON (s.serverid = l.serverid)
WHERE l.locationid IN (:idlist)
ORDER BY s.servertype ASC";
$dbquery = Database::simpleQuery($query, array('idlist' => array_values($idList)));
$serverList = array();
foreach ($dbquery as $dbresult) {
if (!isset($serverList[$dbresult['serverid']])) {
$serverList[$dbresult['serverid']] = array(
'credentials' => json_decode($dbresult['credentials'], true),
'type' => $dbresult['servertype'],
'idlist' => array()
);
}
$serverList[$dbresult['serverid']]['idlist'][] = $dbresult['locationid'];
}
$resultArray = array();
foreach ($serverList as $serverid => $server) {
$serverInstance = CourseBackend::getInstance($server['type']);
if ($serverInstance === false) {
EventLog::warning('Cannot fetch schedule for location (' . implode(', ', $server['idlist']) . ')'
. ': Backend type ' . $server['type'] . ' unknown. Disabling location.');
Database::exec("UPDATE locationinfo_locationconfig SET serverid = NULL WHERE locationid IN (:lid)",
array('lid' => $server['idlist']));
continue;
}
$credentialsOk = $serverInstance->setCredentials($serverid, $server['credentials']);
if ($credentialsOk) {
$calendarFromBackend = $serverInstance->fetchSchedule($server['idlist']);
} else {
$calendarFromBackend = array();
}
LocationInfo::setServerError($serverid, $serverInstance->getErrors());
if (is_array($calendarFromBackend)) {
foreach ($calendarFromBackend as $key => $value) {
$resultArray[] = array(
'id' => $key,
'calendar' => $value,
);
}
}
}
return $resultArray;
}
// ########## </Calendar> ##########
|
