Move ManifestHandlers to extensions/

Move ManifestHandlers for:
- CSP
- Kiosk Mode
- Offline Enabled
- Requirements
- Sandboxed Page
to top-level extensions/common/manifest_handlers.
Rename all handlers to be foo_info.h/cc, if necessary.

TBR=davemoore@chromium.org (c/b/chromeos/app_mode/startup_app_launcher.cc)
TBR=finnur@chromium.org (c/b/ui/webui/extensions/extension_basic_info.cc)
BUG=159265

Review URL: https://codereview.chromium.org/83843002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@237426 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 47 insertions, 0 deletions

diff --git a/extensions/common/csp_validator.h b/extensions/common/csp_validator.h
new file mode 100644
index 0000000..e7446f6d
--- /dev/null
+++ b/extensions/common/csp_validator.h
@@ -0,0 +1,47 @@
+// Copyright 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef EXTENSIONS_COMMON_CSP_VALIDATOR_H_
+#define EXTENSIONS_COMMON_CSP_VALIDATOR_H_
+
+#include <string>
+
+#include "extensions/common/manifest.h"
+
+namespace extensions {
+
+namespace csp_validator {
+
+// Checks whether the given |policy| is legal for use in the extension system.
+// This check just ensures that the policy doesn't contain any characters that
+// will cause problems when we transmit the policy in an HTTP header.
+bool ContentSecurityPolicyIsLegal(const std::string& policy);
+
+// Checks whether the given |policy| meets the minimum security requirements
+// for use in the extension system.
+//
+// Ideally, we would like to say that an XSS vulnerability in the extension
+// should not be able to execute script, even in the precense of an active
+// network attacker.
+//
+// However, we found that it broke too many deployed extensions to limit
+// 'unsafe-eval' in the script-src directive, so that is allowed as a special
+// case for extensions. Platform apps disallow it.
+bool ContentSecurityPolicyIsSecure(
+    const std::string& policy, Manifest::Type type);
+
+// Checks whether the given |policy| enforces a unique origin sandbox as
+// defined by http://www.whatwg.org/specs/web-apps/current-work/multipage/
+// the-iframe-element.html#attr-iframe-sandbox. The policy must have the
+// "sandbox" directive, and the sandbox tokens must not include
+// "allow-same-origin". Additional restrictions may be imposed depending on
+// |type|.
+bool ContentSecurityPolicyIsSandboxed(
+    const std::string& policy, Manifest::Type type);
+
+}  // namespace csp_validator
+
+}  // namespace extensions
+
+#endif  // EXTENSIONS_COMMON_CSP_VALIDATOR_H_