Improved pagesize and max size support, especially for cusor pagination (limosa-io#106)

Author: arietimmerman

config/scim.php

@@ -4,4 +4,9 @@
     "publish_routes" => true,
     'omit_main_schema_in_return' => false,
     'omit_null_values' => true,
+
+    'pagination' => [
+        'defaultPageSize' => 10,
+        'maxPageSize' => 100,
+    ]
 ];

src/Http/Controllers/ResourceController.php

@@ -219,7 +219,7 @@ public function index(Request $request, PolicyDecisionPoint $pdp, ResourceType $
         }
 
         // Non-negative integer. Specifies the desired maximum number of query results per page, e.g., 10. A negative value SHALL be interpreted as "0". A value of "0" indicates that no resource results are to be returned except for "totalResults".
-        $count = min(max(0, intVal($request->input('count', 10))), 100);
+        $count = min(max(0, intVal($request->input('count', config('scim.pagination.defaultPageSize')))), config('scim.pagination.maxPageSize'));
 
         $startIndex = null;
         $sortBy = null;
@@ -267,6 +267,14 @@ function (Builder $query) use ($filter, $resourceType) {
                     throw (new SCIMException('Invalid Cursor'))->setCode(400)->setScimType('invalidCursor');
                 }
             }
+
+            $countRaw = $request->input('count');
+
+            if($countRaw < 1 || $countRaw > config('scim.pagination.maxPageSize')){
+                throw (new SCIMException(
+                    sprintf('Count value is invalid. Count value must be between 1 - and maxPageSize (%s) (when using cursor pagination)', config('scim.pagination.maxPageSize'))
+                ))->setCode(400)->setScimType('invalidCount');
+            }
 
             $resourceObjects = $resourceObjects->cursorPaginate(
                 $count,

src/Http/Controllers/ServiceProviderController.php

@@ -54,8 +54,8 @@ public function index()
                 "cursor" => true,
                 "index" => true,
                 "defaultPaginationMethod" => "index",
-                "defaultPageSize" => 10,
-                "maxPageSize" => 100,
+                "defaultPageSize" => config('scim.pagination.defaultPageSize'),
+                "maxPageSize" => config('scim.pagination.maxPageSize'),
                 "cursorTimeout" => 3600
             ],
             "meta" => [

tests/BasicTest.php

@@ -153,6 +153,19 @@ public function testCursorPaginationFailure()
 
     }
 
+    public function testCursorPaginationFailureMaxCount()
+    {
+        $response1 = $this->get('/scim/v2/Users?count=200&cursor');
+
+        $response1->assertStatus(400);
+        $response1->assertJson([
+            'schemas' => ['urn:ietf:params:scim:api:messages:2.0:Error'],
+            'status' => '400',
+            'scimType' => 'invalidCount'
+        ]);
+
+    }
+
     public function testPagination()
     {
         $response = $this->get('/scim/v2/Users?startIndex=21&count=20');
@@ -470,4 +483,9 @@ public function testPostTopLevel()
         $this->assertEquals('mariejo@example.com', $json['urn:ietf:params:scim:schemas:core:2.0:User']['emails'][0]['value']);
         $this->assertEquals('Dr. Marie Jo', $json['urn:ietf:params:scim:schemas:core:2.0:User']['userName']);
     }
+
+    public function testTotalResultsOnly(){
+        $response = $this->get('/scim/v2/Users?count=0');
+        $this->assertTrue(true);
+    }
 }