Implement LoadTemporaryRoot for Windows

net/base/x509_certificate_win.cc

Index: net/base/x509_certificate_win.cc
diff --git a/net/base/x509_certificate_win.cc b/net/base/x509_certificate_win.cc
index 9e018fdde6564e76aee70b28754af7936de735b8..a2244be9ed1cc0db5cbe6b14b6a63ceb0c676a0b 100644
--- a/net/base/x509_certificate_win.cc
+++ b/net/base/x509_certificate_win.cc
@@ -4,6 +4,7 @@
 
 #include "net/base/x509_certificate.h"
 
+#include "base/crypto/scoped_capi_types.h"
 #include "base/logging.h"
 #include "base/pickle.h"
 #include "base/string_tokenizer.h"
@@ -14,6 +15,7 @@
 #include "net/base/ev_root_ca_metadata.h"
 #include "net/base/net_errors.h"
 #include "net/base/scoped_cert_chain_context.h"
+#include "net/base/test_root_certs.h"
 
 #pragma comment(lib, "crypt32.lib")
 
@@ -23,6 +25,21 @@ namespace net {
 
 namespace {
 
+typedef base::ScopedCAPIHandle<
+    HCERTSTORE,
+    base::CAPIDestroyerWithFlags<HCERTSTORE,
+                                 CertCloseStore, 0> > ScopedHCERTSTORE;
+
+struct FreeChainEngineFunctor {
+  void operator()(HCERTCHAINENGINE engine) const {
+    if (engine)
+      CertFreeCertificateChainEngine(engine);
+  }
+};
+
+typedef base::ScopedCAPIHandle<HCERTCHAINENGINE, FreeChainEngineFunctor>
+    ScopedHCERTCHAINENGINE;
+
 //-----------------------------------------------------------------------------
 
 // TODO(wtc): This is a copy of the MapSecurityError function in
@@ -605,15 +622,26 @@ int X509Certificate::Verify(const std::string& hostname,
     }
   }
 
+  // For non-test scenarios, use the default HCERTCHAINENGINE, NULL, which
+  // corresponds to HCCE_CURRENT_USER and is is initialized as needed by
+  // crypt32. However, when testing, it is necessary to create a new
+  // HCERTCHAINENGINE and use that instead. This is because each
+  // HCERTCHAINENGINE maintains a cache of information about certificates
+  // encountered, and each test run may modify the trust status of a
+  // certificate.
+  ScopedHCERTCHAINENGINE chain_engine(NULL);
+  if (TestRootCerts::HasInstance())
+    chain_engine.reset(TestRootCerts::GetInstance()->GetChainEngine());
+
   PCCERT_CHAIN_CONTEXT chain_context;
   // IE passes a non-NULL pTime argument that specifies the current system
   // time.  IE passes CERT_CHAIN_REVOCATION_CHECK_CHAIN_EXCLUDE_ROOT as the
   // chain_flags argument.
   if (!CertGetCertificateChain(
-           NULL,  // default chain engine, HCCE_CURRENT_USER
+           chain_engine,
            cert_handle_,
            NULL,  // current system time
-           cert_handle_->hCertStore,  // search this store
+           cert_handle_->hCertStore,
            &chain_para,
            chain_flags,
            NULL,  // reserved
@@ -627,10 +655,10 @@ int X509Certificate::Verify(const std::string& hostname,
     chain_para.RequestedIssuancePolicy.Usage.rgpszUsageIdentifier = NULL;
     CertFreeCertificateChain(chain_context);
     if (!CertGetCertificateChain(
-             NULL,  // default chain engine, HCCE_CURRENT_USER
+             chain_engine,
              cert_handle_,
              NULL,  // current system time
-             cert_handle_->hCertStore,  // search this store
+             cert_handle_->hCertStore,
              &chain_para,
              chain_flags,
              NULL,  // reserved
@@ -641,7 +669,6 @@ int X509Certificate::Verify(const std::string& hostname,
   ScopedCertChainContext scoped_chain_context(chain_context);
 
   GetCertChainInfo(chain_context, verify_result);
-
   verify_result->cert_status |= MapCertChainErrorStatusToCertStatus(
       chain_context->TrustStatus.dwErrorStatus);