Moved dependency checks to end of class files

Dependency messages now appear below the configuration options instead of above
Reworked dependency check method to support consolidated messages for multiple backends

Conflicts:
	apps/files_external/lib/google.php
	apps/files_external/lib/swift.php
	apps/files_external/templates/settings.php

1 files changed, 12 insertions, 0 deletions

diff --git a/apps/files_external/lib/amazons3.php b/apps/files_external/lib/amazons3.php
index 969070360fe..352885121f9 100644
--- a/apps/files_external/lib/amazons3.php
+++ b/apps/files_external/lib/amazons3.php
@@ -560,4 +560,16 @@ class AmazonS3 extends \OC\Files\Storage\Common {
 			return false;
 		}
 	}
+
+	/**
+	 * check if curl is installed
+	 */
+	public static function checkDependencies() {
+		if (function_exists('curl_init')) {
+			return true;
+		} else {
+			return array('curl');
+		}
+	}
+
 }