Implement oracle user provider.

README.md

@@ -68,6 +68,19 @@ This will copy the configuration file to `config/oracle.php`.
 
 And run your laravel installation...
 
+## [Laravel 5.3] Oracle User Provider
+When using oracle, we may encounter a problem on authentication because oracle queries are case sensitive by default. 
+By using this oracle user provider, we will now be able to avoid user issues when logging in and doing a forgot password failure because of case sensitive search.
+
+To use, just update `auth.php` config and set the driver to `oracle`
+```php
+'providers' => [
+	'users' => [
+		'driver' => 'oracle',
+		'model' => App\User::class,
+	],
+]
+```
 
 ## Credits
 

src/Oci8/Auth/OracleUserProvider.php

@@ -0,0 +1,35 @@
+<?php
+
+namespace Yajra\Oci8\Auth;
+
+use Illuminate\Auth\EloquentUserProvider;
+use Illuminate\Support\Str;
+
+class OracleUserProvider extends EloquentUserProvider
+{
+    /**
+     * Retrieve a user by the given credentials.
+     *
+     * @param  array $credentials
+     * @return \Illuminate\Contracts\Auth\Authenticatable|null
+     */
+    public function retrieveByCredentials(array $credentials)
+    {
+        if (empty($credentials)) {
+            return;
+        }
+
+        // First we will add each credential element to the query as a where clause.
+        // Then we can execute the query and, if we found a user, return it in a
+        // Eloquent User "model" that will be utilized by the Guard instances.
+        $query = $this->createModel()->newQuery();
+
+        foreach ($credentials as $key => $value) {
+            if (! Str::contains($key, 'password')) {
+                $query->whereRaw("upper({$key}) = upper(?)", [$value]);
+            }
+        }
+
+        return $query->first();
+    }
+}

src/Oci8/Oci8ServiceProvider.php

@@ -3,7 +3,9 @@
 namespace Yajra\Oci8;
 
 use Illuminate\Support\ServiceProvider;
+use Yajra\Oci8\Auth\OracleUserProvider;
 use Yajra\Oci8\Connectors\OracleConnector as Connector;
+use Illuminate\Support\Facades\Auth;
 
 class Oci8ServiceProvider extends ServiceProvider
 {
@@ -22,6 +24,10 @@ public function boot()
         $this->publishes([
             __DIR__ . '/../config/oracle.php' => config_path('oracle.php'),
         ], 'oracle');
+
+        Auth::provider('oracle', function ($app, array $config) {
+            return new OracleUserProvider($app['hash'], $config['model']);
+        });
     }
 
     /**