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<?php |
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/** Created by PhpStorm, User: jonphipps, Date: 2017-05-30, Time: 11:57 AM */ |
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namespace App\Http\Traits; |
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use Illuminate\Database\Eloquent\Model; |
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use Illuminate\Foundation\Auth\Access\AuthorizesRequests; |
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trait UsesPolicies |
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{ |
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use AuthorizesRequests; |
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/** bulk authorize based on policies |
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*/ |
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public function authorizeAll(): void |
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{ |
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if (! auth()->check()) { |
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return; |
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} |
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$model = $this->crud->getModel(); |
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$authArray = [ |
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'list' => 'view', |
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'create' => 'create', |
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'edit' => 'update', |
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'update' => 'update', |
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'destroy' => 'delete', |
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'delete' => 'delete', |
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'show' => 'view', |
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'details_row' => 'view', |
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]; |
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$done = []; |
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foreach ($authArray as $key => $ability) { |
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$this->crud->denyAccess([$ability]); |
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if (\in_array($ability, $done, true)) { |
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$this->crud->allowAccess([$key]); |
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continue; |
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} |
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switch ($ability) { |
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case 'view': |
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if (auth()->user()->can($ability, $model)) { |
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$this->crud->allowAccess([$key]); |
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} |
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break; |
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case 'create': |
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if (auth()->user()->can($ability, \get_class($model))) { |
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$this->crud->allowAccess([$key]); |
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} |
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break; |
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default: |
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if (auth()->user()->can($ability, $model)) { |
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$this->crud->allowAccess([$key]); |
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} |
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} |
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$done[] = $ability; |
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} |
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} |
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/** |
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* @throws \Illuminate\Database\Eloquent\ModelNotFoundException |
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* @throws \Illuminate\Auth\Access\AuthorizationException |
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*/ |
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public function create() |
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{ |
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$this->policyAuthorize('create', \get_class($this->crud->getModel())); |
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return parent::create(); |
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} |
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/** |
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* @param $id |
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* |
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* @return |
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* @throws \Illuminate\Database\Eloquent\ModelNotFoundException |
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* @throws \Illuminate\Auth\Access\AuthorizationException |
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*/ |
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public function destroy($id) |
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{ |
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$this->policyAuthorize('delete', $this->crud->getModel(), $id); |
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return parent::destroy($id); |
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} |
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/** |
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* @param $id |
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* |
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* @throws \Illuminate\Database\Eloquent\ModelNotFoundException |
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* @throws \Illuminate\Auth\Access\AuthorizationException |
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*/ |
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public function edit($id) |
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{ |
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$this->policyAuthorize('update', $this->crud->getModel(), $id); |
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return parent::edit($id); |
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} |
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/** |
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* @throws \Illuminate\Database\Eloquent\ModelNotFoundException |
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* @throws \Illuminate\Auth\Access\AuthorizationException |
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*/ |
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public function index() |
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{ |
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$this->policyAuthorize('list', \get_class($this->crud->getModel())); |
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return parent::index(); |
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} |
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public function list() |
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{ |
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$this->index(); |
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} |
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/** |
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* @param $id |
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* |
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* @throws \Illuminate\Database\Eloquent\ModelNotFoundException |
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* @throws \Illuminate\Auth\Access\AuthorizationException |
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*/ |
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public function show($id) |
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{ |
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$this->policyAuthorize('show', $this->crud->getModel(), $id); |
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return parent::show($id); |
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} |
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/** |
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* Determines the access to allow based on policy. |
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* |
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* @param string $ability The ability to validate |
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* @param string|Model $class The instance of a Model class to check against |
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* @param int|null $id The id of the individual to check against |
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* |
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* @throws \Illuminate\Auth\Access\AuthorizationException |
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* @throws \Illuminate\Database\Eloquent\ModelNotFoundException |
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*/ |
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protected function policyAuthorize($ability, $class, $id = null): void |
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{ |
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//if the controller had pre-authorized access then bail |
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if ($this->crud->hasAccess($ability)) { |
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return; |
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} |
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//the 'model' will either be a valid instance or the class name |
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$model = $id !== null ? $class->findOrFail($id) : $class; |
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//deny access to the ability by default |
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$this->crud->denyAccess([$ability]); |
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//let the gate decide -- if there's a user and the user is authorized |
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$this->authorize($ability, $model); |
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//if we get this far, then the gate has allowed access and we pass the authorization on to backpack |
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$this->crud->allowAccess([$ability]); |
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} |
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} |
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jonphipps /
Metadata-Registry
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