Separate http_security_headers from transport_security_state

net/http/http_security_headers.h

+// Copyright (c) 2012 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 NET_HTTP_HTTP_SECURITY_HEADERS_H_
+#define NET_HTTP_HTTP_SECURITY_HEADERS_H_
+
+#include <string>
+
+#include "base/basictypes.h"
+#include "base/gtest_prod_util.h"
+#include "base/time.h"
+#include "base/values.h"
+#include "net/base/hash_value.h"
+#include "net/base/net_export.h"
+
+namespace net {
+
+const int64 kMaxHSTSAgeSecs = 86400 * 365;  // 1 year
+
+// Parses |value| as a Strict-Transport-Security header value. If successful,
+// returns true and sets |*expiry| and |*include_subdomains|.
+// Otherwise returns false and leaves the output parameters unchanged.
+// Interprets the max-age directive relative to |now|.
+//
+// value is the right-hand side of:
+//
+// "Strict-Transport-Security" ":"
+//     [ directive ]  *( ";" [ directive ] )
+bool NET_EXPORT_PRIVATE ParseHSTSHeader(const base::Time& now,
+                                        const std::string& value,
+                                        base::Time* expiry,
+                                        bool* include_subdomains);
+
+// Parses |value| as a Public-Key-Pins header value. If successful,
+// returns true and populates the expiry and hashes values.
+// Otherwise returns false and leaves the output parameters unchanged.
+// Interprets the max-age directive relative to |now|.
+//
+// value is the right-hand side of:
+//
+// "Public-Key-Pins" ":"
+//     "max-age" "=" delta-seconds ";"
+//     "pin-" algo "=" base64 [ ";" ... ]
+//
+// For this function to return true, the key hashes specified by the HPKP
+// header must pass two additional checks.  There MUST be at least one
+// key hash which matches the SSL certificate chain of the current site
+// (as specified by the chain_hashes) parameter.  In addition, there MUST
+// be at least one key hash which does NOT match the site's SSL certificate
+// chain (this is the "backup pin").
+bool NET_EXPORT_PRIVATE ParseHPKPHeader(const base::Time& now,
+                                        const std::string& value,
+                                        const HashValueVector& chain_hashes,
+                                        base::Time* expiry,
+                                        HashValueVector* hashes);
+
+}  // namespace net
+
+#endif  // NET_HTTP_HTTP_SECURITY_HEADERS_H_