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121 lines
3.5 KiB
C++
121 lines
3.5 KiB
C++
// Copyright 2012 The Chromium Authors
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "crypto/apple_keychain.h"
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#include "base/memory/raw_ptr.h"
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#include "base/synchronization/lock.h"
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#include "crypto/mac_security_services_lock.h"
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namespace {
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// Supports the pattern where a function F(T* out) allows |out| to be nullptr
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// but its implementation requires a T variable even in the absence of |out|.
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// Such a function can maintain a local OptionalOutParameter<T> to provide the
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// internal T value, assigning its value to *out on destruction if possible.
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template <typename T>
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class OptionalOutParameter {
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public:
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OptionalOutParameter(const OptionalOutParameter&) = delete;
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OptionalOutParameter& operator=(const OptionalOutParameter&) = delete;
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OptionalOutParameter(T* out, T value = T()) : out_(out), value_(value) {}
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~OptionalOutParameter() {
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if (out_) {
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*out_ = value_;
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}
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}
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OptionalOutParameter& operator=(T value) {
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value_ = value;
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return *this;
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}
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operator T() const { return value_; }
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private:
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const raw_ptr<T> out_;
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T value_;
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};
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} // namespace
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// Much of the Keychain API was marked deprecated as of the macOS 13 SDK.
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// Removal of its use is tracked in https://crbug.com/1348251 but deprecation
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// warnings are disabled in the meanwhile.
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#pragma clang diagnostic push
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#pragma clang diagnostic ignored "-Wdeprecated-declarations"
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namespace crypto {
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AppleKeychain::AppleKeychain() = default;
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AppleKeychain::~AppleKeychain() = default;
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OSStatus AppleKeychain::FindGenericPassword(
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UInt32 service_name_length,
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const char* service_name,
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UInt32 account_name_length,
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const char* account_name,
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UInt32* password_length,
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void** password_data,
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AppleSecKeychainItemRef* item) const {
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base::AutoLock lock(GetMacSecurityServicesLock());
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return SecKeychainFindGenericPassword(
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nullptr, service_name_length, service_name, account_name_length,
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account_name, password_length, password_data, item);
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}
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OSStatus AppleKeychain::ItemFreeContent(void* data) const {
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base::AutoLock lock(GetMacSecurityServicesLock());
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return SecKeychainItemFreeContent(nullptr, data);
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}
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OSStatus AppleKeychain::AddGenericPassword(
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UInt32 service_name_length,
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const char* service_name,
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UInt32 account_name_length,
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const char* account_name,
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UInt32 password_length,
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const void* password_data,
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AppleSecKeychainItemRef* item) const {
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base::AutoLock lock(GetMacSecurityServicesLock());
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return SecKeychainAddGenericPassword(
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nullptr, service_name_length, service_name, account_name_length,
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account_name, password_length, password_data, item);
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}
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OSStatus AppleKeychain::ItemDelete(AppleSecKeychainItemRef item) const {
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base::AutoLock lock(GetMacSecurityServicesLock());
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return SecKeychainItemDelete(item);
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}
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ScopedKeychainUserInteractionAllowed::ScopedKeychainUserInteractionAllowed(
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Boolean allowed,
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OSStatus* status) {
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Boolean was_allowed;
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OptionalOutParameter<OSStatus> local_status(
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status, SecKeychainGetUserInteractionAllowed(&was_allowed));
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if (local_status != noErr) {
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return;
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}
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local_status = SecKeychainSetUserInteractionAllowed(allowed);
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if (local_status != noErr) {
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return;
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}
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was_allowed_ = was_allowed;
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}
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ScopedKeychainUserInteractionAllowed::~ScopedKeychainUserInteractionAllowed() {
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if (was_allowed_) {
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SecKeychainSetUserInteractionAllowed(*was_allowed_);
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}
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}
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#pragma clang diagnostic pop
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} // namespace crypto
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