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<?php |
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/* |
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* ***************************************************************************** |
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* Contributions to this work were made on behalf of the GÉANT project, a |
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* project that has received funding from the European Union’s Framework |
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* Programme 7 under Grant Agreements No. 238875 (GN3) and No. 605243 (GN3plus), |
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* Horizon 2020 research and innovation programme under Grant Agreements No. |
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* 691567 (GN4-1) and No. 731122 (GN4-2). |
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* On behalf of the aforementioned projects, GEANT Association is the sole owner |
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* of the copyright in all material which was developed by a member of the GÉANT |
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* project. GÉANT Vereniging (Association) is registered with the Chamber of |
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* Commerce in Amsterdam with registration number 40535155 and operates in the |
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* UK as a branch of GÉANT Vereniging. |
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* |
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* Registered office: Hoekenrode 3, 1102BR Amsterdam, The Netherlands. |
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* UK branch address: City House, 126-130 Hills Road, Cambridge CB2 1PQ, UK |
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* |
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* License: see the web/copyright.inc.php file in the file structure or |
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* <base_url>/copyright.php after deploying the software |
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*/ |
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/** |
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* This file contains the AbstractProfile class. It contains common methods for |
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* both RADIUS/EAP profiles and SilverBullet profiles |
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* |
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* @author Stefan Winter <[email protected]> |
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* @author Tomasz Wolniewicz <[email protected]> |
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* |
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* @package Developer |
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* |
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*/ |
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namespace core; |
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use \Exception; |
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/** |
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* This class represents an EAP Profile. |
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* Profiles can inherit attributes from their IdP, if the IdP has some. Otherwise, |
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* one can set attribute in the Profile directly. If there is a conflict between |
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* IdP-wide and Profile-wide attributes, the more specific ones (i.e. Profile) win. |
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* |
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* @author Stefan Winter <[email protected]> |
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* @author Tomasz Wolniewicz <[email protected]> |
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* |
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* @license see LICENSE file in root directory |
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* |
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* @package Developer |
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*/ |
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class DeploymentManaged extends AbstractDeployment { |
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const MAX_CLIENTS_PER_SERVER = 1000; |
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const PRODUCTNAME = "Managed SP"; |
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/** |
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* the RADIUS port for this SP instance |
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* |
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* @var int |
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*/ |
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public $port; |
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/** |
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* the shared secret for this SP instance |
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* |
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* @var string |
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*/ |
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public $secret; |
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/** |
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* the IPv4 address of the RADIUS server for this SP instance (can be NULL) |
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* |
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* @var string |
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*/ |
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public $host4; |
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/** |
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* the IPv6 address of the RADIUS server for this SP instance (can be NULL) |
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* |
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* @var string |
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*/ |
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public $host6; |
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/** |
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* the RADIUS server instance for this SP instance |
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* |
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* @var string |
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*/ |
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public $radius_instance; |
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/** |
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* Class constructor for existing deployments (use |
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* IdP::newDeployment() to actually create one). Retrieves all |
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* attributes from the DB and stores them in the priv_ arrays. |
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* |
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* @param IdP $idpObject optionally, the institution to which this Profile belongs. Saves the construction of the IdP instance. If omitted, an extra query and instantiation is executed to find out. |
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* @param string|int $deploymentIdRaw identifier of the deployment in the DB |
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*/ |
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public function __construct($idpObject, $deploymentIdRaw) { |
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parent::__construct($idpObject, $deploymentIdRaw); // we now have access to our INST database handle and logging |
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$this->type = AbstractDeployment::DEPLOYMENTTYPE_MANAGED; |
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if (!is_numeric($deploymentIdRaw)) { |
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throw new Exception("Managed SP instances have to have a numeric identifier"); |
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} |
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$propertyQuery = "SELECT status,port,secret,radius_instance FROM deployment WHERE deployment_id = ?"; |
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$queryExec = $this->databaseHandle->exec($propertyQuery, "i", $deploymentIdRaw); |
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while ($iterator = mysqli_fetch_object(/** @scrutinizer ignore-type */ $queryExec)) { |
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if ($iterator->secret == NULL && $iterator->radius_instance == NULL) { |
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// we are instantiated for the first time, initialise us |
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$details = $this->initialise(); |
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$this->port = $details["port"]; |
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$this->secret = $details["secret"]; |
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$this->radius_instance = $details["radius_instance"]; |
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$this->status = AbstractDeployment::INACTIVE; |
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} else { |
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$this->port = $iterator->port; |
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$this->secret = $iterator->secret; |
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$this->radius_instance = $iterator->radius_instance; |
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$this->status = $iterator->status; |
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} |
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} |
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$serverdetails = $this->databaseHandle->exec("SELECT radius_ip4, radius_ip6 FROM managed_sp_servers WHERE server_id = '$this->radius_instance'"); |
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while ($iterator2 = mysqli_fetch_object($serverdetails)) { |
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$this->host4 = $iterator2->radius_ip4; |
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$this->host6 = $iterator2->radius_ip6; |
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} |
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} |
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/** |
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* initialises a new SP |
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* |
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* @return array details of the SP as generated during initialisation |
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* @throws Exception |
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*/ |
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private function initialise() { |
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// find a server near us (list of all servers, ordered by distance) |
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$servers = $this->databaseHandle->exec("SELECT server_id, location_lon, location_lat FROM managed_sp_servers"); |
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$ourserver = []; |
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// TODO: for ease of prototyping, no particular order - add location-based selection later |
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while ($iterator = mysqli_fetch_object($servers)) { |
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$clientCount = $this->databaseHandle->exec("SELECT count(port) AS tenants FROM deployment WHERE radius_instance = '$iterator->server_id'"); |
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while ($iterator2 = mysqli_fetch_object($clientCount)) { |
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$clients = $iterator2->tenants; |
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if ($clients < DeploymentManaged::MAX_CLIENTS_PER_SERVER) { |
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$ourserver[] = $iterator->server_id; |
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} |
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if ($clients > DeploymentManaged::MAX_CLIENTS_PER_SERVER * 0.9) { |
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$this->loggerInstance->debug(1, "A RADIUS server for Managed SP (" . $iterator->server_id . ") is serving at more than 90% capacity!"); |
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} |
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} |
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} |
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if (count($ourserver) == 0) { |
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throw new Exception("No available server found for new SP!"); |
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} |
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// now, find an unused port in our preferred server |
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$foundFreePort = 0; |
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while ($foundFreePort == 0) { |
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$portCandidate = random_int(1025, 65535); |
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$check = $this->databaseHandle->exec("SELECT port FROM deployment WHERE radius_instance = '" . $ourserver[0] . "' AND port = $portCandidate"); |
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if (mysqli_num_rows($check) == 0) { |
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$foundFreePort = $portCandidate; |
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} |
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}; |
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// and make up a shared secret that is halfways readable |
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$futureSecret = $this->randomString(16, "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"); |
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$this->databaseHandle->exec("UPDATE deployment SET radius_instance = '".$ourserver[0]."', port = $foundFreePort, secret = '$futureSecret' WHERE deployment_id = $this->identifier"); |
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return ["port" => $foundFreePort, "secret" => $futureSecret, "radius_instance" => $ourserver[0]]; |
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} |
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/** |
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* update the last_changed timestamp for this deployment |
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* |
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* @return void |
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*/ |
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public function updateFreshness() { |
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$this->databaseHandle->exec("UPDATE deployment SET last_change = CURRENT_TIMESTAMP WHERE deployment_id = $this->identifier"); |
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} |
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/** |
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* gets the last-modified timestamp (useful for caching "dirty" check) |
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* |
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* @return string the date in string form, as returned by SQL |
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*/ |
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public function getFreshness() { |
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$execLastChange = $this->databaseHandle->exec("SELECT last_change FROM deployment WHERE deployment_id = $this->identifier"); |
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// SELECT always returns a resource, never a boolean |
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if ($freshnessQuery = mysqli_fetch_object(/** @scrutinizer ignore-type */ $execLastChange)) { |
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return $freshnessQuery->last_change; |
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} |
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} |
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/** |
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* Deletes the deployment from database |
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* |
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* @return void |
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*/ |
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public function destroy() { |
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$this->databaseHandle->exec("DELETE FROM deployment_option WHERE deployment_id = $this->identifier"); |
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$this->databaseHandle->exec("DELETE FROM deployment WHERE deployment_id = $this->identifier"); |
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} |
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} |
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GEANT /
CAT
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