Adding upstream version 110.0.1.upstream/110.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 212 insertions, 0 deletions

diff --git a/security/manager/ssl/NSSErrorsService.cpp b/security/manager/ssl/NSSErrorsService.cpp
new file mode 100644
index 0000000000..06c0b1e790
--- /dev/null
+++ b/security/manager/ssl/NSSErrorsService.cpp
@@ -0,0 +1,212 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "NSSErrorsService.h"
+
+#include "nsIStringBundle.h"
+#include "nsNSSComponent.h"
+#include "nsServiceManagerUtils.h"
+#include "mozpkix/pkixnss.h"
+#include "secerr.h"
+#include "sslerr.h"
+
+#define PIPNSS_STRBUNDLE_URL "chrome://pipnss/locale/pipnss.properties"
+#define NSSERR_STRBUNDLE_URL "chrome://pipnss/locale/nsserrors.properties"
+
+namespace mozilla {
+namespace psm {
+
+static_assert(mozilla::pkix::ERROR_BASE ==
+                  nsINSSErrorsService::MOZILLA_PKIX_ERROR_BASE,
+              "MOZILLA_PKIX_ERROR_BASE and "
+              "nsINSSErrorsService::MOZILLA_PKIX_ERROR_BASE do not match.");
+static_assert(mozilla::pkix::ERROR_LIMIT ==
+                  nsINSSErrorsService::MOZILLA_PKIX_ERROR_LIMIT,
+              "MOZILLA_PKIX_ERROR_LIMIT and "
+              "nsINSSErrorsService::MOZILLA_PKIX_ERROR_LIMIT do not match.");
+
+static bool IsPSMError(PRErrorCode error) {
+  return (error >= mozilla::pkix::ERROR_BASE &&
+          error < mozilla::pkix::ERROR_LIMIT);
+}
+
+NS_IMPL_ISUPPORTS(NSSErrorsService, nsINSSErrorsService)
+
+NSSErrorsService::~NSSErrorsService() = default;
+
+nsresult NSSErrorsService::Init() {
+  nsresult rv;
+  nsCOMPtr<nsIStringBundleService> bundleService(
+      do_GetService(NS_STRINGBUNDLE_CONTRACTID, &rv));
+  if (NS_FAILED(rv) || !bundleService) return NS_ERROR_FAILURE;
+
+  bundleService->CreateBundle(PIPNSS_STRBUNDLE_URL,
+                              getter_AddRefs(mPIPNSSBundle));
+  if (!mPIPNSSBundle) rv = NS_ERROR_FAILURE;
+
+  bundleService->CreateBundle(NSSERR_STRBUNDLE_URL,
+                              getter_AddRefs(mNSSErrorsBundle));
+  if (!mNSSErrorsBundle) rv = NS_ERROR_FAILURE;
+
+  return rv;
+}
+
+#define EXPECTED_SEC_ERROR_BASE (-0x2000)
+#define EXPECTED_SSL_ERROR_BASE (-0x3000)
+
+#if SEC_ERROR_BASE != EXPECTED_SEC_ERROR_BASE || \
+    SSL_ERROR_BASE != EXPECTED_SSL_ERROR_BASE
+#  error \
+      "Unexpected change of error code numbers in lib NSS, please adjust the mapping code"
+/*
+ * Please ensure the NSS error codes are mapped into the positive range 0x1000
+ * to 0xf000 Search for NS_ERROR_MODULE_SECURITY to ensure there are no
+ * conflicts. The current code also assumes that NSS library error codes are
+ * negative.
+ */
+#endif
+
+bool IsNSSErrorCode(PRErrorCode code) {
+  return IS_SEC_ERROR(code) || IS_SSL_ERROR(code) || IsPSMError(code);
+}
+
+nsresult GetXPCOMFromNSSError(PRErrorCode code) {
+  if (!code) {
+    MOZ_CRASH("Function failed without calling PR_GetError");
+  }
+
+  // The error codes within each module must be a 16 bit value.
+  // For simplicity we use the positive value of the NSS code.
+  return (nsresult)NS_ERROR_GENERATE_FAILURE(NS_ERROR_MODULE_SECURITY,
+                                             -1 * code);
+}
+
+NS_IMETHODIMP
+NSSErrorsService::IsNSSErrorCode(int32_t aNSPRCode, bool* _retval) {
+  if (!_retval) {
+    return NS_ERROR_INVALID_ARG;
+  }
+
+  *_retval = mozilla::psm::IsNSSErrorCode(aNSPRCode);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+NSSErrorsService::GetXPCOMFromNSSError(int32_t aNSPRCode,
+                                       nsresult* aXPCOMErrorCode) {
+  if (!aXPCOMErrorCode) {
+    return NS_ERROR_INVALID_ARG;
+  }
+
+  if (!mozilla::psm::IsNSSErrorCode(aNSPRCode)) {
+    return NS_ERROR_INVALID_ARG;
+  }
+
+  *aXPCOMErrorCode = mozilla::psm::GetXPCOMFromNSSError(aNSPRCode);
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+NSSErrorsService::GetErrorClass(nsresult aXPCOMErrorCode,
+                                uint32_t* aErrorClass) {
+  NS_ENSURE_ARG(aErrorClass);
+
+  if (NS_ERROR_GET_MODULE(aXPCOMErrorCode) != NS_ERROR_MODULE_SECURITY ||
+      NS_ERROR_GET_SEVERITY(aXPCOMErrorCode) != NS_ERROR_SEVERITY_ERROR) {
+    return NS_ERROR_FAILURE;
+  }
+
+  int32_t aNSPRCode = -1 * NS_ERROR_GET_CODE(aXPCOMErrorCode);
+
+  if (!mozilla::psm::IsNSSErrorCode(aNSPRCode)) {
+    return NS_ERROR_FAILURE;
+  }
+
+  if (mozilla::psm::ErrorIsOverridable(aNSPRCode)) {
+    *aErrorClass = ERROR_CLASS_BAD_CERT;
+  } else {
+    *aErrorClass = ERROR_CLASS_SSL_PROTOCOL;
+  }
+
+  return NS_OK;
+}
+
+bool ErrorIsOverridable(PRErrorCode code) {
+  switch (code) {
+    // Overridable errors.
+    case mozilla::pkix::MOZILLA_PKIX_ERROR_ADDITIONAL_POLICY_CONSTRAINT_FAILED:
+    case mozilla::pkix::MOZILLA_PKIX_ERROR_CA_CERT_USED_AS_END_ENTITY:
+    case mozilla::pkix::MOZILLA_PKIX_ERROR_EMPTY_ISSUER_NAME:
+    case mozilla::pkix::MOZILLA_PKIX_ERROR_INADEQUATE_KEY_SIZE:
+    case mozilla::pkix::MOZILLA_PKIX_ERROR_MITM_DETECTED:
+    case mozilla::pkix::MOZILLA_PKIX_ERROR_NOT_YET_VALID_CERTIFICATE:
+    case mozilla::pkix::MOZILLA_PKIX_ERROR_NOT_YET_VALID_ISSUER_CERTIFICATE:
+    case mozilla::pkix::MOZILLA_PKIX_ERROR_SELF_SIGNED_CERT:
+    case mozilla::pkix::MOZILLA_PKIX_ERROR_V1_CERT_USED_AS_CA:
+    case SEC_ERROR_CA_CERT_INVALID:
+    case SEC_ERROR_CERT_SIGNATURE_ALGORITHM_DISABLED:
+    case SEC_ERROR_EXPIRED_CERTIFICATE:
+    case SEC_ERROR_EXPIRED_ISSUER_CERTIFICATE:
+    case SEC_ERROR_INVALID_TIME:
+    case SEC_ERROR_UNKNOWN_ISSUER:
+    case SSL_ERROR_BAD_CERT_DOMAIN:
+      return true;
+    // Non-overridable errors.
+    default:
+      return false;
+  }
+}
+
+static const char* getOverrideErrorStringName(PRErrorCode aErrorCode) {
+  switch (aErrorCode) {
+    case SSL_ERROR_SSL_DISABLED:
+      return "PSMERR_SSL_Disabled";
+    case SSL_ERROR_SSL2_DISABLED:
+      return "PSMERR_SSL2_Disabled";
+    case SEC_ERROR_REUSED_ISSUER_AND_SERIAL:
+      return "PSMERR_HostReusedIssuerSerial";
+    case mozilla::pkix::MOZILLA_PKIX_ERROR_MITM_DETECTED:
+      return "certErrorTrust_MitM";
+    default:
+      return nullptr;
+  }
+}
+
+NS_IMETHODIMP
+NSSErrorsService::GetErrorMessage(nsresult aXPCOMErrorCode,
+                                  nsAString& aErrorMessage) {
+  if (NS_ERROR_GET_MODULE(aXPCOMErrorCode) != NS_ERROR_MODULE_SECURITY ||
+      NS_ERROR_GET_SEVERITY(aXPCOMErrorCode) != NS_ERROR_SEVERITY_ERROR) {
+    return NS_ERROR_FAILURE;
+  }
+
+  int32_t aNSPRCode = -1 * NS_ERROR_GET_CODE(aXPCOMErrorCode);
+
+  if (!mozilla::psm::IsNSSErrorCode(aNSPRCode)) {
+    return NS_ERROR_FAILURE;
+  }
+
+  nsCOMPtr<nsIStringBundle> theBundle = mPIPNSSBundle;
+  const char* idStr = getOverrideErrorStringName(aNSPRCode);
+
+  if (!idStr) {
+    idStr = PR_ErrorToName(aNSPRCode);
+    theBundle = mNSSErrorsBundle;
+  }
+
+  if (!idStr || !theBundle) {
+    return NS_ERROR_FAILURE;
+  }
+
+  nsAutoString msg;
+  nsresult rv = theBundle->GetStringFromName(idStr, msg);
+  if (NS_SUCCEEDED(rv)) {
+    aErrorMessage = msg;
+  }
+  return rv;
+}
+
+}  // namespace psm
+}  // namespace mozilla