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<?php |
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/** |
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* DeviceGroup.php |
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* |
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* Dynamic groups of devices |
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* |
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* This program is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation, either version 3 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program. If not, see <http://www.gnu.org/licenses/>. |
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* |
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* @package LibreNMS |
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* @link http://librenms.org |
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* @copyright 2016 Tony Murray |
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* @author Tony Murray <[email protected]> |
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*/ |
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namespace App\Models; |
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use LibreNMS\Alerting\QueryBuilderFluentParser; |
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use Log; |
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use Permissions; |
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class DeviceGroup extends BaseModel |
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{ |
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public $timestamps = false; |
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protected $fillable = ['name', 'desc', 'type']; |
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protected $casts = ['rules' => 'array']; |
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public static function boot() |
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{ |
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parent::boot(); |
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static::deleting(function (DeviceGroup $deviceGroup) { |
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$deviceGroup->devices()->detach(); |
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}); |
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static::saving(function (DeviceGroup $deviceGroup) { |
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if ($deviceGroup->isDirty('rules')) { |
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$deviceGroup->updateDevices(); |
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} |
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}); |
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} |
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// ---- Helper Functions ---- |
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/** |
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* Update devices included in this group (dynamic only) |
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*/ |
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public function updateDevices() |
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{ |
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if ($this->type == 'dynamic') { |
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$this->devices()->sync(QueryBuilderFluentParser::fromJSON($this->rules)->toQuery() |
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->distinct()->pluck('devices.device_id')); |
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} |
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} |
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/** |
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* Update the device groups for the given device or device_id |
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* |
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* @param Device|int $device |
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* @return array |
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*/ |
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public static function updateGroupsFor($device) |
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{ |
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$device = ($device instanceof Device ? $device : Device::find($device)); |
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if (!$device instanceof Device) { |
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// could not load device |
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return [ |
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"attached" => [], |
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"detached" => [], |
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"updated" => [], |
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]; |
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} |
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$device_group_ids = static::query() |
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->with(['devices' => function ($query) { |
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$query->select('devices.device_id'); |
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}]) |
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->get() |
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->filter(function ($device_group) use ($device) { |
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/** @var DeviceGroup $device_group */ |
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if ($device_group->type == 'dynamic') { |
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try { |
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return $device_group->getParser() |
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->toQuery() |
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->where('devices.device_id', $device->device_id) |
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->exists(); |
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} catch (\Illuminate\Database\QueryException $e) { |
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Log::error("Device Group '$device_group->name' generates invalid query: " . $e->getMessage()); |
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return false; |
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} |
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} |
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// for static, if this device is include, keep it. |
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return $device_group->devices |
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->where('device_id', $device->device_id) |
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->isNotEmpty(); |
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})->pluck('id'); |
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return $device->groups()->sync($device_group_ids); |
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} |
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/** |
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* Get a query builder parser instance from this device group |
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* |
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* @return QueryBuilderFluentParser |
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*/ |
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public function getParser() |
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{ |
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return !empty($this->rules) ? |
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QueryBuilderFluentParser::fromJson($this->rules) : |
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QueryBuilderFluentParser::fromOld($this->pattern); |
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} |
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// ---- Query Scopes ---- |
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public function scopeHasAccess($query, User $user) |
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{ |
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if ($user->hasGlobalRead()) { |
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return $query; |
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} |
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return $query->whereIn('id', Permissions::deviceGroupsForUser($user)); |
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} |
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// ---- Define Relationships ---- |
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public function devices() |
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{ |
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return $this->belongsToMany('App\Models\Device', 'device_group_device', 'device_group_id', 'device_id'); |
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} |
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public function services() |
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{ |
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return $this->belongsToMany('App\Models\Service', 'device_group_device', 'device_group_id', 'device_id'); |
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} |
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} |
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librenms /
librenms
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