Implement LoadTemporaryRoot for Windows

net/base/test_root_certs_mac.cc

+// Copyright (c) 2010 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.
+
+#include "net/base/test_root_certs.h"
+
+#include <Security/Security.h>
+
+#include "base/logging.h"
+#include "base/mac/scoped_cftyperef.h"
+#include "net/base/x509_certificate.h"
+
+namespace net {
+
+namespace {
+
+#if !defined(MAC_OS_X_VERSION_10_6) || \
+    MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_6
+// Declared in <Security/SecBase.h> of the 10.6 SDK.
+enum {
+  errSecUnimplemented = -4,
+};
+#endif
+
+typedef OSStatus (*SecTrustSetAnchorCertificatesOnlyFuncPtr)(SecTrustRef,
+                                                             Boolean);
+
+Boolean OurSecCertificateEqual(const void* value1, const void* value2) {
+  if (CFGetTypeID(value1) != SecCertificateGetTypeID() ||
+      CFGetTypeID(value2) != SecCertificateGetTypeID())
+    return CFEqual(value1, value2);
+  return X509Certificate::IsSameOSCert(
+      reinterpret_cast<SecCertificateRef>(const_cast<void*>(value1)),
+      reinterpret_cast<SecCertificateRef>(const_cast<void*>(value2)));
+}
+
+const void* RetainWrapper(CFAllocatorRef unused, const void* value) {
+  return CFRetain(value);
+}
+
+void ReleaseWrapper(CFAllocatorRef unused, const void* value) {
+  CFRelease(value);
+}
+
+// CFEqual prior to 10.6 only performed pointer checks on SecCertificateRefs,
+// rather than checking if they were the same (logical) certificate, so a
+// custom structure is used for the array callbacks.
+const CFArrayCallBacks kCertArrayCallbacks = {
+  0,  // version
+  RetainWrapper,
+  ReleaseWrapper,
+  CFCopyDescription,
+  OurSecCertificateEqual,
+};
+
+}  // namespace
+
+bool TestRootCerts::Add(X509Certificate* certificate) {
+  if (CFArrayContainsValue(temporary_roots_,
+                           CFRangeMake(0, CFArrayGetCount(temporary_roots_)),
+                           certificate->os_cert_handle()))
+    return true;
+  CFArrayAppendValue(temporary_roots_, certificate->os_cert_handle());
+  return true;
+}
+
+void TestRootCerts::Clear() {
+  CFArrayRemoveAllValues(temporary_roots_);
+}
+
+bool TestRootCerts::IsEmpty() const {
+  return CFArrayGetCount(temporary_roots_) == 0;
+}
+
+OSStatus TestRootCerts::FixupSecTrustRef(SecTrustRef trust_ref) const {
+  if (IsEmpty())
+    return noErr;
+
+  CFBundleRef bundle =
+      CFBundleGetBundleWithIdentifier(CFSTR("com.apple.security"));
+  SecTrustSetAnchorCertificatesOnlyFuncPtr set_anchor_certificates_only = NULL;
+  if (bundle) {
+    set_anchor_certificates_only =
+        reinterpret_cast<SecTrustSetAnchorCertificatesOnlyFuncPtr>(
+            CFBundleGetFunctionPointerForName(bundle,
+                CFSTR("SecTrustSetAnchorCertificatesOnly")));
+  }
+
+  OSStatus status = noErr;
+  if (set_anchor_certificates_only) {
+    // OS X 10.6 includes a function where the system trusts can be
+    // preserved while appending application trusts. This is preferable,
+    // because it preserves any user trust settings (explicit distrust),
+    // which the naive copy in 10.5 does not. Unfortunately, though the
+    // function pointer may be available, it is not always implemented. If it
+    // returns errSecUnimplemented, fall through to the 10.5 behaviour.
+    status = SecTrustSetAnchorCertificates(trust_ref, temporary_roots_);
+    if (status)
+      return status;
+    status = set_anchor_certificates_only(trust_ref, false);
+    if (status != errSecUnimplemented)
+      return status;
+
+    // Restore the original settings before falling back.
+    status = SecTrustSetAnchorCertificates(trust_ref, NULL);
+    if (status)
+      return status;
+  }
+
+  // On 10.5, the system certificates have to be copied and merged into
+  // the application trusts, and may override any user trust settings.
+  CFArrayRef system_roots = NULL;
+  status = SecTrustCopyAnchorCertificates(&system_roots);
+  if (status)
+    return status;
+
+  base::mac::ScopedCFTypeRef<CFArrayRef> scoped_system_roots(system_roots);
+  base::mac::ScopedCFTypeRef<CFMutableArrayRef> scoped_roots(
+      CFArrayCreateMutableCopy(kCFAllocatorDefault, 0,
+                               scoped_system_roots));
+  DCHECK(scoped_roots.get());
+
+  CFArrayAppendArray(scoped_roots, temporary_roots_,
+                     CFRangeMake(0, CFArrayGetCount(temporary_roots_)));
+  return SecTrustSetAnchorCertificates(trust_ref, scoped_roots);
+}
+
+TestRootCerts::~TestRootCerts() {}
+
+void TestRootCerts::Init() {
+  temporary_roots_.reset(CFArrayCreateMutable(kCFAllocatorDefault, 0,
+                                              &kCertArrayCallbacks));
+}
+
+}  // namespace net