source: admin/WebConsole/uds-set-service-pool.php @ a7c7e52

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Last change on this file since a7c7e52 was a7c7e52, checked in by Natalia Serrano <natalia.serrano@…>, 14 months ago

refs #235, change EOL from CRLF to LF
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[a7c7e52]1<?php
2// ********************************************************************
3// Author: Juan Manuel Bardallo (UHU), Natalia Serrano (Qindel)
4// Description: Updates UDS with the number of available computers depending on OG's calendars and other circumstances
5// *********************************************************************
6
7include_once("./controlacceso.php");
8include_once("./includes/CreaComando.php");
9include_once("./clases/AdoPhp.php");
10
11$tz = 'Europe/Madrid';
12$OG_REST_URL       = 'https://og.example.com/opengnsys/rest/';
13$UDS_REST_URL      = 'https://uds.example.com/uds/rest/';
14$UDS_AUTHENTICATOR = 'Local users';
15$UDS_USER          = 'user';
16$UDS_PASS          = 'pass';
17
18/**
19 *         uds_getHeaders ($auth_token, $scrambler)
20 * @brief  Builds set of authentication headers from a couple of UDS params
21 * @param  string  authentication token
22 * @param  string  scrambler
23 * @return array   headers
24 */
25function uds_getHeaders ($auth_token, $scrambler) {
26    $headers = [
27        'X-Auth-Token: ' . $auth_token,                  // Authentication token to access REST API of UDS -- MUST be present in all requests except login request
28        'Content-Type: ' . 'application/json',
29        'User-Agent: '   . 'UDS Test Linux Client 1.0',  // important to include "Linux" on UA to allow UDS to know OS. If not present, UDS will not know wich OS is connecting, and will not send the correct services
30        'Scrambler: '    . $scrambler,                   // This header is a cryptographic key -- MUST BE INCLUDED in all requests except login request
31    ];
32    return $headers;
33}
34
35/**
36 *         db_fetch_apikey()
37 * @brief  Retrieves API key for the first user (assumed admin) from the OG database
38 * @return string  api key
39 */
40function db_fetch_apikey() {
41    global $cnx;
42    $cmd = CreaComando ($cnx);
43    if (!$cmd) { die ('ACCESS_ERROR'); }
44
45    $cmd->texto = 'SELECT apikey FROM usuarios WHERE idusuario=1';
46    $rs = new Recordset;
47    $rs->Comando = &$cmd;
48
49    if (!$rs->Abrir()) return (null);
50
51    $rs->Primero();
52    if ($rs->EOF) { return (null); }
53
54    $k = $rs->campos['apikey'];
55    $rs->Cerrar();
56    return $k;
57}
58
59/**
60 *         db_fetchCals()
61 * @brief  Retrieves calendars from the database
62 * @return array   calendars
63 */
64function db_fetchCals() {
65    global $cnx;
66
67    $tbl = array();
68    $cmd = CreaComando ($cnx);
69    if (!$cmd) { die ('ACCESS_ERROR'); }
70
71    $cmd->texto = 'SELECT idcalendario, description, json_text FROM calendarios';
72    $rs = new Recordset;
73    $rs->Comando = &$cmd;
74
75    if (!$rs->Abrir()) return (false);
76
77    $rs->Primero();
78    if ($rs->EOF) { return ($tbl); }
79
80    $id = $rs->campos['idcalendario'];
81    $desc = $rs->campos['description'];
82    $txt = $rs->campos['json_text'];
83    $tbl[$id] = array (
84        'id'   => $id,
85        'desc' => $desc,
86        'json' => json_decode($txt),
87    );
88
89    while (1) {
90        $rs->Siguiente();
91        if ($rs->EOF) { break; }
92
93        $id = $rs->campos['idcalendario'];
94        $desc = $rs->campos['description'];
95        $txt = $rs->campos['json_text'];
96        $tbl[$id] = array (
97            'id'   => $id,
98            'desc' => $desc,
99            'json' => json_decode($txt),
100        );
101    }
102
103    $rs->Cerrar();
104    return $tbl;
105}
106
107/**
108 *         uds_login ($auth, $username, $password)
109 * @brief  Log into UDS
110 * @param  string  UDS authenticator
111 * @param  string  user
112 * @param  string  password
113 * @return object  response from the server, contains result, token, version and scrambler
114 */
115function uds_login ($auth, $username, $password) {
116    global $UDS_REST_URL;
117
118    $parameters = [
119        'auth'     => $auth,
120        'username' => $username,
121        'password' => $password
122    ];
123
124    $payload = json_encode ($parameters);
125
126    $ch = curl_init();
127    curl_setopt ($ch, CURLOPT_URL, $UDS_REST_URL."auth/login");
128    curl_setopt ($ch, CURLOPT_POST, 1);
129    curl_setopt ($ch, CURLOPT_POSTFIELDS, $payload);
130    curl_setopt ($ch, CURLOPT_HTTPHEADER, array ('Content-Type:application/json'));
131    curl_setopt ($ch, CURLOPT_RETURNTRANSFER, true);
132
133    // In real life you should use something like:
134    // curl_setopt ($ch, CURLOPT_POSTFIELDS, http_build_query (array ('postvar1' => 'value1')));
135
136    $server_output = json_decode (curl_exec ($ch));
137    curl_close ($ch);
138
139    return $server_output;
140}
141
142/**
143 *         uds_getServiceInfo ($headers, $providerId, $serviceId)
144 * @brief  Get service information from UDS
145 * @param  array   UDS headers
146 * @param  string  provider id
147 * @param  string  service id
148 * @return object  response from the server
149 */
150function uds_getServiceInfo ($headers, $providerId, $serviceId) {
151    global $UDS_REST_URL;
152
153    $ch = curl_init();
154    curl_setopt ($ch, CURLOPT_URL, $UDS_REST_URL."providers/".$providerId."/services/".$serviceId);
155    curl_setopt ($ch, CURLOPT_RETURNTRANSFER, true);
156    curl_setopt ($ch, CURLOPT_HTTPHEADER, $headers);
157
158    $server_output = json_decode (curl_exec ($ch));
159    print_r (curl_error ($ch));
160    curl_close ($ch);
161
162    return $server_output;
163}
164
165/**
166 *         uds_getAllServicePools ($headers)
167 * @brief  Get all service pools from UDS
168 * @param  array   UDS headers
169 * @return object  response from the server
170 */
171function uds_getAllServicePools ($headers) {
172    global $UDS_REST_URL;
173
174    $ch = curl_init();
175    curl_setopt ($ch, CURLOPT_URL, $UDS_REST_URL."servicespools/overview");
176    curl_setopt ($ch, CURLOPT_RETURNTRANSFER, true);
177    curl_setopt ($ch, CURLOPT_HTTPHEADER, $headers);
178
179    $server_output = json_decode (curl_exec ($ch));
180    curl_close ($ch);
181
182    return $server_output;
183}
184
185/**
186 *         uds_setServicePool ($headers, $servicePool)
187 * @brief  Writes service pool information to UDS
188 * @param  array   UDS headers
189 * @param  object  service pool details
190 * @return object  response from the server
191 */
192function uds_setServicePool ($headers, $servicePool) {
193    global $UDS_REST_URL;
194
195    $payload = json_encode ($servicePool);
196
197    $ch = curl_init();
198    curl_setopt ($ch, CURLOPT_URL, $UDS_REST_URL."servicespools/".$servicePool->id);
199    curl_setopt ($ch, CURLOPT_POST, 1);
200    curl_setopt ($ch, CURLOPT_CUSTOMREQUEST, "PUT");
201    curl_setopt ($ch, CURLOPT_POSTFIELDS, $payload);
202    curl_setopt ($ch, CURLOPT_RETURNTRANSFER, true);
203    curl_setopt ($ch, CURLOPT_HTTPHEADER, $headers);
204
205    $server_output = curl_exec ($ch);
206    curl_close ($ch);
207
208    return json_decode ($server_output);
209}
210
211/**
212 *         og_getAula ($idCentro, $idAula)
213 * @brief  Gets lab information from OG
214 * @param  int     building id
215 * @param  int     lab id
216 * @return object  response from the server
217 */
218function og_getAula ($idCentro, $idAula) {
219    global $OG_REST_URL;
220    global $OG_REST_AUTH;
221
222    $result = null;
223    $url = $OG_REST_URL."ous/".$idCentro."/labs/".$idAula;
224
225    $ch = curl_init();
226    curl_setopt ($ch, CURLOPT_URL, $url);
227    curl_setopt ($ch, CURLOPT_SSL_VERIFYHOST, 0);
228    curl_setopt ($ch, CURLOPT_SSL_VERIFYPEER, 0);
229    curl_setopt ($ch, CURLOPT_RETURNTRANSFER, true);
230    curl_setopt ($ch, CURLOPT_HTTPHEADER, [
231        'Accept: application/json',
232        'Authorization: '.$OG_REST_AUTH
233    ]);
234
235
236    $server_output = json_decode (curl_exec ($ch));
237    $curl_errno = curl_errno ($ch);
238    $curl_error = curl_error ($ch);
239    if ($curl_errno) {
240        printf ("error (%s) errno (%d)\n", $curl_error, $curl_errno);
241        return null;
242    }
243
244    $code = curl_getinfo ($ch, CURLINFO_RESPONSE_CODE);
245    curl_close ($ch);
246
247    if ($code <= 201) {
248        $result = $server_output;
249    }
250
251    return $result;
252}
253
254/**
255 *         og_getClientDiskConfig ($idCentro, $idAula, $idCliente)
256 * @brief  Gets information about disks of a client from OG
257 * @param  int     building id
258 * @param  int     lab id
259 * @param  int     client id
260 * @return object  response from the server
261 */
262function og_getClientDiskConfig ($idCentro, $idAula, $idCliente) {
263    global $OG_REST_URL;
264    global $OG_REST_AUTH;
265
266    $result = null;
267    $url = $OG_REST_URL."ous/".$idCentro."/labs/".$idAula."/clients/".$idCliente."/diskcfg";
268
269    $ch = curl_init();
270    curl_setopt ($ch, CURLOPT_URL, $url);
271    curl_setopt ($ch, CURLOPT_SSL_VERIFYHOST, 0);
272    curl_setopt ($ch, CURLOPT_SSL_VERIFYPEER, 0);
273    curl_setopt ($ch, CURLOPT_RETURNTRANSFER, true);
274    curl_setopt ($ch, CURLOPT_HTTPHEADER, [
275        'Accept: application/json',
276        'Authorization: '.$OG_REST_AUTH
277    ]);
278
279    $server_output = json_decode (curl_exec ($ch));
280    $curl_errno = curl_errno ($ch);
281    $curl_error = curl_error ($ch);
282    if ($curl_errno) {
283        printf ("error (%s) errno (%d)\n", $curl_error, $curl_errno);
284        return null;
285    }
286
287    $code = curl_getinfo ($ch, CURLINFO_RESPONSE_CODE);
288    curl_close ($ch);
289
290    if ($code <= 201) {
291        $result = $server_output;
292    }
293
294    return $result;
295}
296
297/**
298 *         og_aula_is_remote ($cal_id)
299 * @brief  Checks whether lab is remote right now
300 * @param  int     calendar id
301 * @return bool    whether lab is remote (true) or not (false)
302 */
303function og_aula_is_remote ($cal_id) {
304    global $cals, $tz;
305    $ruleset = $cals[$cal_id]['json']->remotepc_calendar->ruleset; //print_r($ruleset);
306
307    $dt = new DateTime ('now', new DateTimeZone ($tz));
308    $dow = strtolower ($dt->format ('D'));  // textual representation of a day, three letters, 'Mon' through 'Sun'
309    $hour = $dt->format ('G');              // 24-hour without leading zeros
310    $ts = $dt->format ('U');                // unix epoch
311
312    // primero recorremos todas las reglas mirando solo las que tienen remote=false (ie. presencial)
313    // si estamos fuera de todos estos rangos, es que estamos en remoto: return 1
314    // si estamos dentro de alguno de ellos, es que estamos en presencial: continuamos
315    $presencial = 0;
316    foreach ($ruleset as $r) {
317        if (array_key_exists ('remote', $r) and $r->remote) { continue; }
318        if (!array_key_exists ($dow, $r) or !$r->$dow) { continue; }
319        if ($hour < $r->from_hr or $hour > $r->to_hr) { continue; }
320        $presencial = 1; break;
321    }
322
323    if (0 == $presencial) {
324        return 1;
325    }
326
327    // si llegamos aqui, es que estamos en uno de los rangos de presencial, pero puede haber excepciones
328    // recorremos todas las reglas mirando las que tienen remote=true
329    // si estamos en alguno de esos rangos, return 1
330    foreach ($ruleset as $r) {
331        if (!array_key_exists ('remote', $r) or !$r->remote) { continue; }
332        if ($ts >= $r->from_ts and $ts <= $r->to_ts) { return 1; }
333    }
334
335    // si llegamos aqui es que estamos dentro de presencial y fuera de las excepciones: return 0
336    return 0;
337}
338
339function og_ordenador_cumple_criterios ($client) {
340    if ($client->status == 'oglive' || $client->status == 'linux' || $client->status == 'windows') {
341        return 1;
342    }
343
344    return 0;
345}
346// {"remotepc_calendar":{"timezone":"Europe/Madrid","ruleset":[
347//     {"remote":false,"mon":true,"tue":true,"wed":true,"thu":true,"fri":true,"from_hr":"8","to_hr":"17"},
348//     {"remote":true,"reason":"exc","from_ts":1709074800,"to_ts":1706569199}
349// ]}}
350
351/**
352 *         og_sondeoAula ($idCentro, $idAula, $idImagen)
353 * @brief  Gets how many clients are available for remotepc from OG
354 * @param  int     building id
355 * @param  int     lab id
356 * @param  int     image id
357 * @return int     number of clients available for remotepc
358 */
359function og_sondeoAula ($idCentro, $idAula, $idImagen) {
360    global $OG_REST_URL;
361    global $OG_REST_AUTH;
362
363    $aula = og_getAula ($idCentro, $idAula);
364    if (null === $aula || $aula->inremotepc != 1) { return 0; }
365
366    if (!og_aula_is_remote ($aula->idcalendario)) {
367        return 0;
368    }
369
370    $url = $OG_REST_URL."ous/".$idCentro."/labs/".$idAula."/clients/status";
371    $ch = curl_init();
372    curl_setopt ($ch, CURLOPT_URL, $url);
373    curl_setopt ($ch, CURLOPT_SSL_VERIFYHOST, 0);
374    curl_setopt ($ch, CURLOPT_SSL_VERIFYPEER, 0);
375    curl_setopt ($ch, CURLOPT_RETURNTRANSFER, true);
376    curl_setopt ($ch, CURLOPT_HTTPHEADER, [
377        'Accept: application/json',
378        'Authorization: '.$OG_REST_AUTH
379    ]);
380
381    $server_output = json_decode (curl_exec ($ch));
382    $curl_errno = curl_errno ($ch);
383    $curl_error = curl_error ($ch);
384    if ($curl_errno) {
385        printf ("error (%s) errno (%d)\n", $curl_error, $curl_errno);
386        return null;
387    }
388    $code = curl_getinfo ($ch, CURLINFO_RESPONSE_CODE);
389    curl_close ($ch);
390
391    if ($code > 201) { return 0; }
392
393    $clientsOn = 0;
394    foreach ($server_output as $client) {
395        if (!og_ordenador_cumple_criterios ($client)) { continue; }
396
397        $clientDisk = og_getClientDiskConfig ($idCentro, $idAula, $client->id);
398        if (null === $clientDisk) { continue; }
399
400        for ($p = 0; $p < count ($clientDisk->diskcfg); $p++) {
401            $part = $clientDisk->diskcfg[$p];
402            if (isset ($part->image) && $part->image->id == $idImagen) {
403                $clientsOn++;
404                break;
405            }
406        }
407    }
408
409    return $clientsOn;
410}
411
412
413
414$OG_REST_AUTH = db_fetch_apikey();
415if (null == $OG_REST_AUTH) {
416    print ("failed to fetch API key from the database\n");
417    exit (1);
418}
419
420$cals = db_fetchCals(); //print_r($cals);
421
422$server_output = uds_login ($UDS_AUTHENTICATOR, $UDS_USER, $UDS_PASS);
423if ($server_output->result != "ok") {
424    print_r (curl_error ($ch));
425    exit (1);
426}
427
428$headers = uds_getHeaders ($server_output->token, $server_output->scrambler);
429$servicePools = uds_getAllServicePools ($headers);
430
431foreach ($servicePools as $servicePool) {
432    $providerId = $servicePool->provider_id;
433    $serviceId = $servicePool->service_id;
434
435    $service = uds_getServiceInfo ($headers, $providerId, $serviceId);
436    if ($service === null) {
437        print ("service with providerId ($providerId) serviceId ($serviceId) is null\n");
438        continue;
439    }
440
441    // Conectar con opengnsys para ver cuantos pcs hay disponibles y enviar dicho parametro
442    $max_srvs = og_sondeoAula ($service->ou, $service->lab, $service->image);
443    if (null === $max_srvs) {
444        print ("og_sondeoAula failed\n");
445        continue;
446    }
447    $servicePool->osmanager_id = null;
448    $servicePool->max_srvs = $max_srvs;
449    $servicePool->initial_srvs = $servicePool->max_srvs;
450    $servicePool->cache_l1_srvs = 0;
451
452    $servicePool->visible = ($servicePool->max_srvs > 0);
453
454    /*
455    if ($servicePool->initial_srvs > $servicePool->max_srvs){
456        $servicePool->initial_srvs = $servicePool->max_srvs;
457    }
458    /**/
459    $sp = uds_setServicePool ($headers, $servicePool);
460    if (null === $sp) {
461        print ("uds_setServicePool failed\n");
462        continue;
463    }
464    printf ("%s: ou:%d lab:%d imagen:%d max_srvs:%d visible:%d\n", $sp->name, $service->ou, $service->lab, $service->image, $sp->max_srvs, $sp->visible);
465}
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