net/http/http_security_headers.h

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef NET_HTTP_HTTP_SECURITY_HEADERS_H_
   6 #define NET_HTTP_HTTP_SECURITY_HEADERS_H_
   7
   8 #include <string>
   9
  10 #include "base/basictypes.h"
  11 #include "base/gtest_prod_util.h"
  12 #include "base/time/time.h"
  13 #include "base/values.h"
  14 #include "net/base/hash_value.h"
  15 #include "net/base/net_export.h"
  16
  17 namespace net {
  18
  19 const int64 kMaxHSTSAgeSecs = 86400 * 365;  // 1 year
  20
  21 // Parses |value| as a Strict-Transport-Security header value. If successful,
  22 // returns true and sets |*max_age| and |*include_subdomains|.
  23 // Otherwise returns false and leaves the output parameters unchanged.
  24 //
  25 // value is the right-hand side of:
  26 //
  27 // "Strict-Transport-Security" ":"
  28 //     [ directive ]  *( ";" [ directive ] )
  29 bool NET_EXPORT_PRIVATE ParseHSTSHeader(const std::string& value,
  30                                         base::TimeDelta* max_age,
  31                                         bool* include_subdomains);
  32
  33 // Parses |value| as a Public-Key-Pins header value. If successful, returns
  34 // true and populates the |*max_age|, |*include_subdomains|, and |*hashes|
  35 // values. Otherwise returns false and leaves the output parameters
  36 // unchanged.
  37 //
  38 // value is the right-hand side of:
  39 //
  40 // "Public-Key-Pins" ":"
  41 //     "max-age" "=" delta-seconds ";"
  42 //     "pin-" algo "=" base64 [ ";" ... ]
  43 //     [ ";" "includeSubdomains" ]
  44 //
  45 // For this function to return true, the key hashes specified by the HPKP
  46 // header must pass two additional checks. There MUST be at least one key
  47 // hash which matches the SSL certificate chain of the current site (as
  48 // specified by the chain_hashes) parameter. In addition, there MUST be at
  49 // least one key hash which does NOT match the site's SSL certificate chain
  50 // (this is the "backup pin").
  51 bool NET_EXPORT_PRIVATE ParseHPKPHeader(const std::string& value,
  52                                         const HashValueVector& chain_hashes,
  53                                         base::TimeDelta* max_age,
  54                                         bool* include_subdomains,
  55                                         HashValueVector* hashes);
  56
  57 }  // namespace net
  58
  59 #endif  // NET_HTTP_HTTP_SECURITY_HEADERS_H_