crypto/mock_apple_keychain.cc

   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 #include "base/logging.h"
   6 #include "base/metrics/histogram.h"
   7 #include "base/time/time.h"
   8 #include "crypto/mock_apple_keychain.h"
   9
  10 namespace {
  11
  12 // Adds an entry to a local histogram to indicate that the Apple Keychain would
  13 // have been accessed, if this class were not a mock of the Apple Keychain.
  14 void IncrementKeychainAccessHistogram() {
  15   // This local histogram is accessed by Telemetry to track the number of times
  16   // the keychain is accessed, since keychain access is known to be synchronous
  17   // and slow.
  18   LOCAL_HISTOGRAM_BOOLEAN("OSX.Keychain.Access", true);
  19 }
  20
  21 }  // namespace
  22
  23 namespace crypto {
  24
  25 OSStatus MockAppleKeychain::FindGenericPassword(
  26     CFTypeRef keychainOrArray,
  27     UInt32 serviceNameLength,
  28     const char* serviceName,
  29     UInt32 accountNameLength,
  30     const char* accountName,
  31     UInt32* passwordLength,
  32     void** passwordData,
  33     SecKeychainItemRef* itemRef) const {
  34   IncrementKeychainAccessHistogram();
  35
  36   // When simulating |noErr|, return canned |passwordData| and
  37   // |passwordLength|.  Otherwise, just return given code.
  38   if (find_generic_result_ == noErr) {
  39     static const char kPassword[] = "my_password";
  40     DCHECK(passwordData);
  41     // The function to free this data is mocked so the cast is fine.
  42     *passwordData = const_cast<char*>(kPassword);
  43     DCHECK(passwordLength);
  44     *passwordLength = arraysize(kPassword);
  45     password_data_count_++;
  46   }
  47
  48   return find_generic_result_;
  49 }
  50
  51 OSStatus MockAppleKeychain::ItemFreeContent(SecKeychainAttributeList* attrList,
  52                                             void* data) const {
  53   // No-op.
  54   password_data_count_--;
  55   return noErr;
  56 }
  57
  58 OSStatus MockAppleKeychain::AddGenericPassword(
  59     SecKeychainRef keychain,
  60     UInt32 serviceNameLength,
  61     const char* serviceName,
  62     UInt32 accountNameLength,
  63     const char* accountName,
  64     UInt32 passwordLength,
  65     const void* passwordData,
  66     SecKeychainItemRef* itemRef) const {
  67   IncrementKeychainAccessHistogram();
  68
  69   called_add_generic_ = true;
  70
  71   DCHECK_GT(passwordLength, 0U);
  72   DCHECK(passwordData);
  73   add_generic_password_ =
  74       std::string(const_cast<char*>(static_cast<const char*>(passwordData)),
  75                   passwordLength);
  76   return noErr;
  77 }
  78
  79 std::string MockAppleKeychain::GetEncryptionPassword() const {
  80   IncrementKeychainAccessHistogram();
  81   return "mock_password";
  82 }
  83
  84 }  // namespace crypto