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<?php |
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namespace Swis\Laravel\Encrypted; |
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use Illuminate\Database\Eloquent\Builder; |
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use Illuminate\Database\Eloquent\Model; |
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use Illuminate\Support\Str; |
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class EncryptedModel extends Model |
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{ |
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/** |
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* The attributes that should be stored encrypted. |
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* |
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* @var array |
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*/ |
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protected $encrypted = []; |
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/** |
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* @inheritDoc |
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* |
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* @param array $attributes |
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* @param bool $sync |
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* |
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* @return $this |
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*/ |
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public function setRawAttributes(array $attributes, $sync = false) |
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{ |
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return parent::setRawAttributes($this->decryptAttributes($attributes), $sync); |
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} |
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/** |
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* @inheritDoc |
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* |
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* @param \Illuminate\Database\Eloquent\Builder $query |
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* |
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* @return bool |
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*/ |
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protected function performInsert(Builder $query) |
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{ |
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if ($this->fireModelEvent('creating') === false) { |
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return false; |
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} |
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// First we'll need to create a fresh query instance and touch the creation and |
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// update timestamps on this model, which are maintained by us for developer |
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// convenience. After, we will just continue saving these model instances. |
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if ($this->usesTimestamps()) { |
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$this->updateTimestamps(); |
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} |
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// If the model has an incrementing key, we can use the "insertGetId" method on |
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// the query builder, which will give us back the final inserted ID for this |
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// table from the database. Not all tables have to be incrementing though. |
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// But before we insert the attributes, we will encrypt them. |
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$attributes = $this->encryptAttributes($this->getAttributes()); |
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if ($this->getIncrementing()) { |
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$this->insertAndSetId($query, $attributes); |
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} |
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// If the table isn't incrementing we'll simply insert these attributes as they |
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// are. These attribute arrays must contain an "id" column previously placed |
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// there by the developer as the manually determined key for these models. |
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else { |
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if (empty($attributes)) { |
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return true; |
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} |
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$query->insert($attributes); |
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} |
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// We will go ahead and set the exists property to true, so that it is set when |
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// the created event is fired, just in case the developer tries to update it |
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// during the event. This will allow them to do so and run an update here. |
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$this->exists = true; |
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$this->wasRecentlyCreated = true; |
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$this->fireModelEvent('created', false); |
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return true; |
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} |
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/** |
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* @inheritDoc |
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* |
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* @param \Illuminate\Database\Eloquent\Builder $query |
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* |
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* @return bool |
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*/ |
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protected function performUpdate(Builder $query) |
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{ |
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// If the updating event returns false, we will cancel the update operation so |
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// developers can hook Validation systems into their models and cancel this |
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// operation if the model does not pass validation. Otherwise, we update. |
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if ($this->fireModelEvent('updating') === false) { |
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return false; |
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} |
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// First we need to create a fresh query instance and touch the creation and |
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// update timestamp on the model which are maintained by us for developer |
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// convenience. Then we will just continue saving the model instances. |
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2 |
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if ($this->usesTimestamps()) { |
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$this->updateTimestamps(); |
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} |
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// Once we have run the update operation, we will fire the "updated" event for |
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// this model instance. This will allow developers to hook into these after |
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// models are updated, giving them a chance to do any special processing. |
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// But before we update the attributes, we will encrypt them. |
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$dirty = $this->encryptAttributes($this->getDirty()); |
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if (count($dirty) > 0) { |
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$this->setKeysForSaveQuery($query)->update($dirty); |
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$this->syncChanges(); |
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$this->fireModelEvent('updated', false); |
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} |
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return true; |
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} |
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/** |
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* @param array $attributes |
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* |
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* @return array |
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*/ |
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12 |
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private function decryptAttributes(array $attributes): array |
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{ |
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foreach ($this->encrypted as $key) { |
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// We only try to decrypt the attribute if the value starts with 'eyJpdiI6' |
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// because the return value of \Illuminate\Encryption\Encrypter is a |
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// Base64-encoded JSON string and this always starts with that. |
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if (isset($attributes[$key]) && Str::startsWith($attributes[$key], 'eyJpdiI6')) { |
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$attributes[$key] = decrypt($attributes[$key]); |
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} |
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} |
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return $attributes; |
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} |
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/** |
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* @param array $attributes |
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* |
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* @return array |
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*/ |
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4 |
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private function encryptAttributes(array $attributes): array |
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{ |
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foreach ($this->encrypted as $key) { |
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if (isset($attributes[$key])) { |
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$attributes[$key] = encrypt($attributes[$key]); |
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} |
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} |
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return $attributes; |
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} |
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} |
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swisnl /
laravel-encrypted-data
