Add m-esr52 at 52.6.0

1 files changed, 646 insertions, 0 deletions

diff --git a/dom/base/DOMException.cpp b/dom/base/DOMException.cpp
new file mode 100644
index 000000000..dfda47316
--- /dev/null
+++ b/dom/base/DOMException.cpp
@@ -0,0 +1,646 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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 "mozilla/dom/DOMException.h"
+
+#include "jsprf.h"
+#include "mozilla/ArrayUtils.h"
+#include "mozilla/HoldDropJSObjects.h"
+#include "mozilla/dom/Exceptions.h"
+#include "nsContentUtils.h"
+#include "nsCOMPtr.h"
+#include "nsIClassInfoImpl.h"
+#include "nsIDocument.h"
+#include "nsIDOMDOMException.h"
+#include "nsIException.h"
+#include "nsIProgrammingLanguage.h"
+#include "nsMemory.h"
+#include "prprf.h"
+#include "xpcprivate.h"
+
+#include "mozilla/dom/DOMExceptionBinding.h"
+#include "mozilla/ErrorResult.h"
+
+using namespace mozilla;
+
+enum DOM4ErrorTypeCodeMap {
+  /* DOM4 errors from http://dvcs.w3.org/hg/domcore/raw-file/tip/Overview.html#domexception */
+  IndexSizeError             = nsIDOMDOMException::INDEX_SIZE_ERR,
+  HierarchyRequestError      = nsIDOMDOMException::HIERARCHY_REQUEST_ERR,
+  WrongDocumentError         = nsIDOMDOMException::WRONG_DOCUMENT_ERR,
+  InvalidCharacterError      = nsIDOMDOMException::INVALID_CHARACTER_ERR,
+  NoModificationAllowedError = nsIDOMDOMException::NO_MODIFICATION_ALLOWED_ERR,
+  NotFoundError              = nsIDOMDOMException::NOT_FOUND_ERR,
+  NotSupportedError          = nsIDOMDOMException::NOT_SUPPORTED_ERR,
+  // Can't remove until setNamedItem is removed
+  InUseAttributeError        = nsIDOMDOMException::INUSE_ATTRIBUTE_ERR,
+  InvalidStateError          = nsIDOMDOMException::INVALID_STATE_ERR,
+  SyntaxError                = nsIDOMDOMException::SYNTAX_ERR,
+  InvalidModificationError   = nsIDOMDOMException::INVALID_MODIFICATION_ERR,
+  NamespaceError             = nsIDOMDOMException::NAMESPACE_ERR,
+  InvalidAccessError         = nsIDOMDOMException::INVALID_ACCESS_ERR,
+  TypeMismatchError          = nsIDOMDOMException::TYPE_MISMATCH_ERR,
+  SecurityError              = nsIDOMDOMException::SECURITY_ERR,
+  NetworkError               = nsIDOMDOMException::NETWORK_ERR,
+  AbortError                 = nsIDOMDOMException::ABORT_ERR,
+  URLMismatchError           = nsIDOMDOMException::URL_MISMATCH_ERR,
+  QuotaExceededError         = nsIDOMDOMException::QUOTA_EXCEEDED_ERR,
+  TimeoutError               = nsIDOMDOMException::TIMEOUT_ERR,
+  InvalidNodeTypeError       = nsIDOMDOMException::INVALID_NODE_TYPE_ERR,
+  DataCloneError             = nsIDOMDOMException::DATA_CLONE_ERR,
+  InvalidPointerId           = nsIDOMDOMException::INVALID_POINTER_ERR,
+  EncodingError              = 0,
+
+  /* XXX Should be JavaScript native errors */
+  TypeError                  = 0,
+  RangeError                 = 0,
+
+  /* IndexedDB errors http://dvcs.w3.org/hg/IndexedDB/raw-file/tip/Overview.html#exceptions */
+  UnknownError             = 0,
+  ConstraintError          = 0,
+  DataError                = 0,
+  TransactionInactiveError = 0,
+  ReadOnlyError            = 0,
+  VersionError             = 0,
+
+  /* File API errors http://dev.w3.org/2006/webapi/FileAPI/#ErrorAndException */
+  NotReadableError         = 0,
+
+  /* FileHandle API errors */
+  FileHandleInactiveError = 0,
+
+  /* WebCrypto errors https://dvcs.w3.org/hg/webcrypto-api/raw-file/tip/spec/Overview.html#dfn-DataError */
+  OperationError           = 0,
+
+  /* Push API errors */
+  NotAllowedError          = 0,
+};
+
+#define DOM4_MSG_DEF(name, message, nsresult) {(nsresult), name, #name, message},
+#define DOM_MSG_DEF(val, message) {(val), NS_ERROR_GET_CODE(val), #val, message},
+
+static const struct ResultStruct
+{
+  nsresult mNSResult;
+  uint16_t mCode;
+  const char* mName;
+  const char* mMessage;
+} sDOMErrorMsgMap[] = {
+#include "domerr.msg"
+};
+
+#undef DOM4_MSG_DEF
+#undef DOM_MSG_DEF
+
+static void
+NSResultToNameAndMessage(nsresult aNSResult,
+                         nsCString& aName,
+                         nsCString& aMessage,
+                         uint16_t* aCode)
+{
+  aName.Truncate();
+  aMessage.Truncate();
+  *aCode = 0;
+  for (uint32_t idx = 0; idx < ArrayLength(sDOMErrorMsgMap); idx++) {
+    if (aNSResult == sDOMErrorMsgMap[idx].mNSResult) {
+      aName.Rebind(sDOMErrorMsgMap[idx].mName,
+                   strlen(sDOMErrorMsgMap[idx].mName));
+      aMessage.Rebind(sDOMErrorMsgMap[idx].mMessage,
+                   strlen(sDOMErrorMsgMap[idx].mMessage));
+      *aCode = sDOMErrorMsgMap[idx].mCode;
+      return;
+    }
+  }
+
+  NS_WARNING("Huh, someone is throwing non-DOM errors using the DOM module!");
+
+  return;
+}
+
+nsresult
+NS_GetNameAndMessageForDOMNSResult(nsresult aNSResult, nsACString& aName,
+                                   nsACString& aMessage, uint16_t* aCode)
+{
+  nsCString name;
+  nsCString message;
+  uint16_t code = 0;
+  NSResultToNameAndMessage(aNSResult, name, message, &code);
+
+  if (!name.IsEmpty() && !message.IsEmpty()) {
+    aName = name;
+    aMessage = message;
+    if (aCode) {
+      *aCode = code;
+    }
+    return NS_OK;
+  }
+
+  return NS_ERROR_NOT_AVAILABLE;
+}
+
+namespace mozilla {
+namespace dom {
+
+bool Exception::sEverMadeOneFromFactory = false;
+
+NS_IMPL_CLASSINFO(Exception, nullptr, nsIClassInfo::DOM_OBJECT,
+                  NS_XPCEXCEPTION_CID)
+NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(Exception)
+  NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
+  NS_INTERFACE_MAP_ENTRY(Exception)
+  NS_INTERFACE_MAP_ENTRY(nsIException)
+  NS_INTERFACE_MAP_ENTRY(nsIXPCException)
+  NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIException)
+  NS_IMPL_QUERY_CLASSINFO(Exception)
+NS_INTERFACE_MAP_END
+
+NS_IMPL_CYCLE_COLLECTING_ADDREF(Exception)
+NS_IMPL_CYCLE_COLLECTING_RELEASE(Exception)
+
+NS_IMPL_CYCLE_COLLECTION_CLASS(Exception)
+
+NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(Exception)
+  NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mLocation)
+  NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mData)
+  NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS
+NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
+
+NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN(Exception)
+  NS_IMPL_CYCLE_COLLECTION_TRACE_PRESERVED_WRAPPER
+  NS_IMPL_CYCLE_COLLECTION_TRACE_JS_MEMBER_CALLBACK(mThrownJSVal)
+NS_IMPL_CYCLE_COLLECTION_TRACE_END
+
+NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(Exception)
+  NS_IMPL_CYCLE_COLLECTION_UNLINK(mLocation)
+  NS_IMPL_CYCLE_COLLECTION_UNLINK(mData)
+  NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER
+  tmp->mThrownJSVal.setNull();
+NS_IMPL_CYCLE_COLLECTION_UNLINK_END
+
+NS_IMPL_CI_INTERFACE_GETTER(Exception, nsIXPCException)
+
+Exception::Exception(const nsACString& aMessage,
+                     nsresult aResult,
+                     const nsACString& aName,
+                     nsIStackFrame *aLocation,
+                     nsISupports *aData)
+: mResult(NS_OK),
+  mInitialized(false),
+  mHoldingJSVal(false)
+{
+  // A little hack... The nsIGenericModule nsIClassInfo scheme relies on there
+  // having been at least one instance made via the factory. Otherwise, the
+  // shared factory/classinsance object never gets created and our QI getter
+  // for our instance's pointer to our nsIClassInfo will always return null.
+  // This is bad because it means that wrapped exceptions will never have a
+  // shared prototype. So... We force one to be created via the factory
+  // *once* and then go about our business.
+  if (!sEverMadeOneFromFactory) {
+    nsCOMPtr<nsIXPCException> e =
+        do_CreateInstance(XPC_EXCEPTION_CONTRACTID);
+    sEverMadeOneFromFactory = true;
+  }
+
+  Initialize(aMessage, aResult, aName, aLocation, aData);
+}
+
+Exception::Exception()
+  : mResult(NS_OK),
+    mInitialized(false),
+    mHoldingJSVal(false)
+{
+}
+
+Exception::~Exception()
+{
+  if (mHoldingJSVal) {
+    MOZ_ASSERT(NS_IsMainThread());
+
+    mozilla::DropJSObjects(this);
+  }
+}
+
+bool
+Exception::StealJSVal(JS::Value* aVp)
+{
+  MOZ_ASSERT(NS_IsMainThread());
+
+  if (mHoldingJSVal) {
+    *aVp = mThrownJSVal;
+    mThrownJSVal.setNull();
+
+    mozilla::DropJSObjects(this);
+    mHoldingJSVal = false;
+    return true;
+  }
+
+  return false;
+}
+
+void
+Exception::StowJSVal(JS::Value& aVp)
+{
+  MOZ_ASSERT(NS_IsMainThread());
+
+  mThrownJSVal = aVp;
+  if (!mHoldingJSVal) {
+    mozilla::HoldJSObjects(this);
+    mHoldingJSVal = true;
+  }
+}
+
+NS_IMETHODIMP
+Exception::GetMessageMoz(nsACString& aMessage)
+{
+  NS_ENSURE_TRUE(mInitialized, NS_ERROR_NOT_INITIALIZED);
+
+  aMessage.Assign(mMessage);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+Exception::GetResult(nsresult* aResult)
+{
+  NS_ENSURE_ARG_POINTER(aResult);
+  NS_ENSURE_TRUE(mInitialized, NS_ERROR_NOT_INITIALIZED);
+
+  *aResult = mResult;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+Exception::GetName(nsACString& aName)
+{
+  NS_ENSURE_TRUE(mInitialized, NS_ERROR_NOT_INITIALIZED);
+
+  if (!mName.IsEmpty()) {
+    aName.Assign(mName);
+  } else {
+    aName.Truncate();
+
+    const char* name = nullptr;
+    nsXPCException::NameAndFormatForNSResult(mResult, &name, nullptr);
+
+    if (name) {
+      aName.Assign(name);
+    }
+  }
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+Exception::GetFilename(JSContext* aCx, nsAString& aFilename)
+{
+  NS_ENSURE_TRUE(mInitialized, NS_ERROR_NOT_INITIALIZED);
+
+  if (mLocation) {
+    return mLocation->GetFilename(aCx, aFilename);
+  }
+
+  aFilename.Truncate();
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+Exception::GetLineNumber(JSContext* aCx, uint32_t *aLineNumber)
+{
+  NS_ENSURE_ARG_POINTER(aLineNumber);
+  NS_ENSURE_TRUE(mInitialized, NS_ERROR_NOT_INITIALIZED);
+
+  if (mLocation) {
+    int32_t lineno;
+    nsresult rv = mLocation->GetLineNumber(aCx, &lineno);
+    *aLineNumber = lineno;
+    return rv;
+  }
+
+  *aLineNumber = 0;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+Exception::GetColumnNumber(uint32_t* aColumnNumber)
+{
+  NS_ENSURE_ARG_POINTER(aColumnNumber);
+  NS_ENSURE_TRUE(mInitialized, NS_ERROR_NOT_INITIALIZED);
+
+  *aColumnNumber = 0;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+Exception::GetLocation(nsIStackFrame** aLocation)
+{
+  NS_ENSURE_ARG_POINTER(aLocation);
+  NS_ENSURE_TRUE(mInitialized, NS_ERROR_NOT_INITIALIZED);
+
+  nsCOMPtr<nsIStackFrame> location = mLocation;
+  location.forget(aLocation);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+Exception::GetData(nsISupports** aData)
+{
+  NS_ENSURE_ARG_POINTER(aData);
+  NS_ENSURE_TRUE(mInitialized, NS_ERROR_NOT_INITIALIZED);
+
+  nsCOMPtr<nsISupports> data = mData;
+  data.forget(aData);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+Exception::ToString(JSContext* aCx, nsACString& _retval)
+{
+  NS_ENSURE_TRUE(mInitialized, NS_ERROR_NOT_INITIALIZED);
+
+  static const char defaultMsg[] = "<no message>";
+  static const char defaultLocation[] = "<unknown>";
+  static const char format[] =
+"[Exception... \"%s\"  nsresult: \"0x%x (%s)\"  location: \"%s\"  data: %s]";
+
+  nsCString location;
+
+  if (mLocation) {
+    // we need to free this if it does not fail
+    nsresult rv = mLocation->ToString(aCx, location);
+    NS_ENSURE_SUCCESS(rv, rv);
+  }
+
+  if (location.IsEmpty()) {
+    location.Assign(defaultLocation);
+  }
+
+  const char* msg = mMessage.IsEmpty() ? nullptr : mMessage.get();
+
+  const char* resultName = mName.IsEmpty() ? nullptr: mName.get();
+  if (!resultName &&
+      !nsXPCException::NameAndFormatForNSResult(mResult, &resultName,
+                                                (!msg) ? &msg : nullptr)) {
+    if (!msg) {
+      msg = defaultMsg;
+    }
+    resultName = "<unknown>";
+  }
+  const char* data = mData ? "yes" : "no";
+
+  _retval.Truncate();
+  _retval.AppendPrintf(format, msg, mResult, resultName,
+                       location.get(), data);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+Exception::Initialize(const nsACString& aMessage, nsresult aResult,
+                      const nsACString& aName, nsIStackFrame *aLocation,
+                      nsISupports *aData)
+{
+  NS_ENSURE_FALSE(mInitialized, NS_ERROR_ALREADY_INITIALIZED);
+
+  mMessage = aMessage;
+  mName = aName;
+  mResult = aResult;
+
+  if (aLocation) {
+    mLocation = aLocation;
+  } else {
+    mLocation = GetCurrentJSStack();
+    // it is legal for there to be no active JS stack, if C++ code
+    // is operating on a JS-implemented interface pointer without
+    // having been called in turn by JS.  This happens in the JS
+    // component loader.
+  }
+
+  mData = aData;
+
+  mInitialized = true;
+  return NS_OK;
+}
+
+JSObject*
+Exception::WrapObject(JSContext* cx, JS::Handle<JSObject*> aGivenProto)
+{
+  return ExceptionBinding::Wrap(cx, this, aGivenProto);
+}
+
+void
+Exception::GetMessageMoz(nsString& retval)
+{
+  nsCString str;
+#ifdef DEBUG
+  DebugOnly<nsresult> rv =
+#endif
+  GetMessageMoz(str);
+  MOZ_ASSERT(NS_SUCCEEDED(rv));
+  CopyUTF8toUTF16(str, retval);
+}
+
+uint32_t
+Exception::Result() const
+{
+  return (uint32_t)mResult;
+}
+
+void
+Exception::GetName(nsString& retval)
+{
+  nsCString str;
+#ifdef DEBUG
+  DebugOnly<nsresult> rv =
+#endif
+  GetName(str);
+  MOZ_ASSERT(NS_SUCCEEDED(rv));
+  CopyUTF8toUTF16(str, retval);
+}
+
+uint32_t
+Exception::LineNumber(JSContext* aCx) const
+{
+  if (mLocation) {
+    int32_t lineno;
+    if (NS_SUCCEEDED(mLocation->GetLineNumber(aCx, &lineno))) {
+      return lineno;
+    }
+    return 0;
+  }
+
+  return 0;
+}
+
+uint32_t
+Exception::ColumnNumber() const
+{
+  return 0;
+}
+
+already_AddRefed<nsIStackFrame>
+Exception::GetLocation() const
+{
+  nsCOMPtr<nsIStackFrame> location = mLocation;
+  return location.forget();
+}
+
+already_AddRefed<nsISupports>
+Exception::GetData() const
+{
+  nsCOMPtr<nsISupports> data = mData;
+  return data.forget();
+}
+
+void
+Exception::GetStack(JSContext* aCx, nsAString& aStack, ErrorResult& aRv) const
+{
+  if (mLocation) {
+    aRv = mLocation->GetFormattedStack(aCx, aStack);
+  }
+}
+
+void
+Exception::Stringify(JSContext* aCx, nsString& retval)
+{
+  nsCString str;
+#ifdef DEBUG
+  DebugOnly<nsresult> rv =
+#endif
+  ToString(aCx, str);
+  MOZ_ASSERT(NS_SUCCEEDED(rv));
+  CopyUTF8toUTF16(str, retval);
+}
+
+NS_IMPL_ADDREF_INHERITED(DOMException, Exception)
+NS_IMPL_RELEASE_INHERITED(DOMException, Exception)
+NS_INTERFACE_MAP_BEGIN(DOMException)
+  NS_INTERFACE_MAP_ENTRY(nsIDOMDOMException)
+NS_INTERFACE_MAP_END_INHERITING(Exception)
+
+DOMException::DOMException(nsresult aRv, const nsACString& aMessage,
+                           const nsACString& aName, uint16_t aCode)
+  : Exception(EmptyCString(), aRv, EmptyCString(), nullptr, nullptr),
+    mName(aName),
+    mMessage(aMessage),
+    mCode(aCode)
+{
+}
+
+NS_IMETHODIMP
+DOMException::GetCode(uint16_t* aCode)
+{
+  NS_ENSURE_ARG_POINTER(aCode);
+  *aCode = mCode;
+
+  // Warn only when the code was changed (other than DOM Core)
+  // or the code is useless (zero)
+  if (NS_ERROR_GET_MODULE(mResult) != NS_ERROR_MODULE_DOM || !mCode) {
+    nsCOMPtr<nsIDocument> doc = nsContentUtils::GetDocumentFromCaller();
+    if (doc) {
+      doc->WarnOnceAbout(nsIDocument::eDOMExceptionCode);
+    }
+  }
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+DOMException::ToString(JSContext* aCx, nsACString& aReturn)
+{
+  aReturn.Truncate();
+
+  static const char defaultMsg[] = "<no message>";
+  static const char defaultLocation[] = "<unknown>";
+  static const char defaultName[] = "<unknown>";
+  static const char format[] =
+    "[Exception... \"%s\"  code: \"%d\" nsresult: \"0x%x (%s)\"  location: \"%s\"]";
+
+  nsAutoCString location;
+
+  if (location.IsEmpty()) {
+    location = defaultLocation;
+  }
+
+  const char* msg = !mMessage.IsEmpty() ? mMessage.get() : defaultMsg;
+  const char* resultName = !mName.IsEmpty() ? mName.get() : defaultName;
+
+  aReturn.AppendPrintf(format, msg, mCode, mResult, resultName,
+                       location.get());
+
+  return NS_OK;
+}
+
+void
+DOMException::GetName(nsString& retval)
+{
+  CopyUTF8toUTF16(mName, retval);
+}
+
+void
+DOMException::GetMessageMoz(nsString& retval)
+{
+  CopyUTF8toUTF16(mMessage, retval);
+}
+
+already_AddRefed<DOMException>
+DOMException::Constructor(GlobalObject& /* unused */,
+                          const nsAString& aMessage,
+                          const Optional<nsAString>& aName,
+                          ErrorResult& aError)
+{
+  nsresult exceptionResult = NS_OK;
+  uint16_t exceptionCode = 0;
+  nsCString name(NS_LITERAL_CSTRING("Error"));
+
+  if (aName.WasPassed()) {
+    CopyUTF16toUTF8(aName.Value(), name);
+    for (uint32_t idx = 0; idx < ArrayLength(sDOMErrorMsgMap); idx++) {
+      if (name.EqualsASCII(sDOMErrorMsgMap[idx].mName)) {
+        exceptionResult = sDOMErrorMsgMap[idx].mNSResult;
+        exceptionCode = sDOMErrorMsgMap[idx].mCode;
+        break;
+      }
+    }
+  }
+
+  RefPtr<DOMException> retval =
+    new DOMException(exceptionResult,
+                     NS_ConvertUTF16toUTF8(aMessage),
+                     name,
+                     exceptionCode);
+  return retval.forget();
+}
+
+JSObject*
+DOMException::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
+{
+  return DOMExceptionBinding::Wrap(aCx, this, aGivenProto);
+}
+
+/* static */already_AddRefed<DOMException>
+DOMException::Create(nsresult aRv)
+{
+  nsCString name;
+  nsCString message;
+  uint16_t code;
+  NSResultToNameAndMessage(aRv, name, message, &code);
+  RefPtr<DOMException> inst =
+    new DOMException(aRv, message, name, code);
+  return inst.forget();
+}
+
+/* static */already_AddRefed<DOMException>
+DOMException::Create(nsresult aRv, const nsACString& aMessage)
+{
+  nsCString name;
+  nsCString message;
+  uint16_t code;
+  NSResultToNameAndMessage(aRv, name, message, &code);
+  RefPtr<DOMException> inst =
+    new DOMException(aRv, aMessage, name, code);
+  return inst.forget();
+}
+
+} // namespace dom
+} // namespace mozilla