Add m-esr52 at 52.6.0

1 files changed, 549 insertions, 0 deletions

diff --git a/dom/url/URLSearchParams.cpp b/dom/url/URLSearchParams.cpp
new file mode 100644
index 000000000..d9492f81c
--- /dev/null
+++ b/dom/url/URLSearchParams.cpp
@@ -0,0 +1,549 @@
+/* -*- 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 "URLSearchParams.h"
+#include "mozilla/dom/URLSearchParamsBinding.h"
+#include "mozilla/dom/EncodingUtils.h"
+#include "nsDOMString.h"
+#include "nsIInputStream.h"
+#include "nsStringStream.h"
+
+namespace mozilla {
+namespace dom {
+
+bool
+URLParams::Has(const nsAString& aName)
+{
+  for (uint32_t i = 0, len = mParams.Length(); i < len; ++i) {
+    if (mParams[i].mKey.Equals(aName)) {
+      return true;
+    }
+  }
+
+  return false;
+}
+
+void
+URLParams::Get(const nsAString& aName, nsString& aRetval)
+{
+  SetDOMStringToNull(aRetval);
+
+  for (uint32_t i = 0, len = mParams.Length(); i < len; ++i) {
+    if (mParams[i].mKey.Equals(aName)) {
+      aRetval.Assign(mParams[i].mValue);
+      break;
+    }
+  }
+}
+
+void
+URLParams::GetAll(const nsAString& aName, nsTArray<nsString>& aRetval)
+{
+  aRetval.Clear();
+
+  for (uint32_t i = 0, len = mParams.Length(); i < len; ++i) {
+    if (mParams[i].mKey.Equals(aName)) {
+      aRetval.AppendElement(mParams[i].mValue);
+    }
+  }
+}
+
+void
+URLParams::Append(const nsAString& aName, const nsAString& aValue)
+{
+  Param* param = mParams.AppendElement();
+  param->mKey = aName;
+  param->mValue = aValue;
+}
+
+void
+URLParams::Set(const nsAString& aName, const nsAString& aValue)
+{
+  Param* param = nullptr;
+  for (uint32_t i = 0, len = mParams.Length(); i < len;) {
+    if (!mParams[i].mKey.Equals(aName)) {
+      ++i;
+      continue;
+    }
+    if (!param) {
+      param = &mParams[i];
+      ++i;
+      continue;
+    }
+    // Remove duplicates.
+    mParams.RemoveElementAt(i);
+    --len;
+  }
+
+  if (!param) {
+    param = mParams.AppendElement();
+    param->mKey = aName;
+  }
+
+  param->mValue = aValue;
+}
+
+bool
+URLParams::Delete(const nsAString& aName)
+{
+  bool found = false;
+  for (uint32_t i = 0; i < mParams.Length();) {
+    if (mParams[i].mKey.Equals(aName)) {
+      mParams.RemoveElementAt(i);
+      found = true;
+    } else {
+      ++i;
+    }
+  }
+
+  return found;
+}
+
+void
+URLParams::ConvertString(const nsACString& aInput, nsAString& aOutput)
+{
+  aOutput.Truncate();
+
+  if (!mDecoder) {
+    mDecoder = EncodingUtils::DecoderForEncoding("UTF-8");
+    if (!mDecoder) {
+      MOZ_ASSERT(mDecoder, "Failed to create a decoder.");
+      return;
+    }
+  }
+
+  int32_t inputLength = aInput.Length();
+  int32_t outputLength = 0;
+
+  nsresult rv = mDecoder->GetMaxLength(aInput.BeginReading(), inputLength,
+                                       &outputLength);
+  if (NS_WARN_IF(NS_FAILED(rv))) {
+    return;
+  }
+
+  if (!aOutput.SetLength(outputLength, fallible)) {
+    return;
+  }
+
+  int32_t newOutputLength = outputLength;
+  rv = mDecoder->Convert(aInput.BeginReading(), &inputLength,
+                         aOutput.BeginWriting(), &newOutputLength);
+  if (NS_FAILED(rv)) {
+    aOutput.Truncate();
+    return;
+  }
+  if (newOutputLength < outputLength) {
+    aOutput.Truncate(newOutputLength);
+  }
+}
+
+void
+URLParams::DecodeString(const nsACString& aInput, nsAString& aOutput)
+{
+  nsACString::const_iterator start, end;
+  aInput.BeginReading(start);
+  aInput.EndReading(end);
+
+  nsCString unescaped;
+
+  while (start != end) {
+    // replace '+' with U+0020
+    if (*start == '+') {
+      unescaped.Append(' ');
+      ++start;
+      continue;
+    }
+
+    // Percent decode algorithm
+    if (*start == '%') {
+      nsACString::const_iterator first(start);
+      ++first;
+
+      nsACString::const_iterator second(first);
+      ++second;
+
+#define ASCII_HEX_DIGIT( x )    \
+  ((x >= 0x41 && x <= 0x46) ||  \
+   (x >= 0x61 && x <= 0x66) ||  \
+   (x >= 0x30 && x <= 0x39))
+
+#define HEX_DIGIT( x )              \
+   (*x >= 0x30 && *x <= 0x39        \
+     ? *x - 0x30                    \
+     : (*x >= 0x41 && *x <= 0x46    \
+        ? *x - 0x37                 \
+        : *x - 0x57))
+
+      if (first != end && second != end &&
+          ASCII_HEX_DIGIT(*first) && ASCII_HEX_DIGIT(*second)) {
+        unescaped.Append(HEX_DIGIT(first) * 16 + HEX_DIGIT(second));
+        start = ++second;
+        continue;
+
+      } else {
+        unescaped.Append('%');
+        ++start;
+        continue;
+      }
+    }
+
+    unescaped.Append(*start);
+    ++start;
+  }
+
+  ConvertString(unescaped, aOutput);
+}
+
+void
+URLParams::ParseInput(const nsACString& aInput)
+{
+  // Remove all the existing data before parsing a new input.
+  DeleteAll();
+
+  nsACString::const_iterator start, end;
+  aInput.BeginReading(start);
+  aInput.EndReading(end);
+  nsACString::const_iterator iter(start);
+
+  while (start != end) {
+    nsAutoCString string;
+
+    if (FindCharInReadable('&', iter, end)) {
+      string.Assign(Substring(start, iter));
+      start = ++iter;
+    } else {
+      string.Assign(Substring(start, end));
+      start = end;
+    }
+
+    if (string.IsEmpty()) {
+      continue;
+    }
+
+    nsACString::const_iterator eqStart, eqEnd;
+    string.BeginReading(eqStart);
+    string.EndReading(eqEnd);
+    nsACString::const_iterator eqIter(eqStart);
+
+    nsAutoCString name;
+    nsAutoCString value;
+
+    if (FindCharInReadable('=', eqIter, eqEnd)) {
+      name.Assign(Substring(eqStart, eqIter));
+
+      ++eqIter;
+      value.Assign(Substring(eqIter, eqEnd));
+    } else {
+      name.Assign(string);
+    }
+
+    nsAutoString decodedName;
+    DecodeString(name, decodedName);
+
+    nsAutoString decodedValue;
+    DecodeString(value, decodedValue);
+
+    Append(decodedName, decodedValue);
+  }
+}
+
+namespace {
+
+void SerializeString(const nsCString& aInput, nsAString& aValue)
+{
+  const unsigned char* p = (const unsigned char*) aInput.get();
+  const unsigned char* end = p + aInput.Length();
+
+  while (p != end) {
+    // ' ' to '+'
+    if (*p == 0x20) {
+      aValue.Append(0x2B);
+    // Percent Encode algorithm
+    } else if (*p == 0x2A || *p == 0x2D || *p == 0x2E ||
+               (*p >= 0x30 && *p <= 0x39) ||
+               (*p >= 0x41 && *p <= 0x5A) || *p == 0x5F ||
+               (*p >= 0x61 && *p <= 0x7A)) {
+      aValue.Append(*p);
+    } else {
+      aValue.AppendPrintf("%%%.2X", *p);
+    }
+
+    ++p;
+  }
+}
+
+} // namespace
+
+void
+URLParams::Serialize(nsAString& aValue) const
+{
+  aValue.Truncate();
+  bool first = true;
+
+  for (uint32_t i = 0, len = mParams.Length(); i < len; ++i) {
+    if (first) {
+      first = false;
+    } else {
+      aValue.Append('&');
+    }
+
+    SerializeString(NS_ConvertUTF16toUTF8(mParams[i].mKey), aValue);
+    aValue.Append('=');
+    SerializeString(NS_ConvertUTF16toUTF8(mParams[i].mValue), aValue);
+  }
+}
+
+NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(URLSearchParams, mParent, mObserver)
+NS_IMPL_CYCLE_COLLECTING_ADDREF(URLSearchParams)
+NS_IMPL_CYCLE_COLLECTING_RELEASE(URLSearchParams)
+
+NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(URLSearchParams)
+  NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
+  NS_INTERFACE_MAP_ENTRY(nsIXHRSendable)
+  NS_INTERFACE_MAP_ENTRY(nsISupports)
+NS_INTERFACE_MAP_END
+
+URLSearchParams::URLSearchParams(nsISupports* aParent,
+                                 URLSearchParamsObserver* aObserver)
+  : mParams(new URLParams())
+  , mParent(aParent)
+  , mObserver(aObserver)
+{
+}
+
+URLSearchParams::URLSearchParams(nsISupports* aParent,
+                                 const URLSearchParams& aOther)
+  : mParams(new URLParams(*aOther.mParams.get()))
+  , mParent(aParent)
+  , mObserver(nullptr)
+{
+}
+
+URLSearchParams::~URLSearchParams()
+{
+  DeleteAll();
+}
+
+JSObject*
+URLSearchParams::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
+{
+  return URLSearchParamsBinding::Wrap(aCx, this, aGivenProto);
+}
+
+/* static */ already_AddRefed<URLSearchParams>
+URLSearchParams::Constructor(const GlobalObject& aGlobal,
+                             const nsAString& aInit,
+                             ErrorResult& aRv)
+{
+  RefPtr<URLSearchParams> sp =
+    new URLSearchParams(aGlobal.GetAsSupports(), nullptr);
+
+  NS_ConvertUTF16toUTF8 input(aInit);
+
+  if (StringBeginsWith(input, NS_LITERAL_CSTRING("?"))) {
+    sp->ParseInput(Substring(input, 1, input.Length() - 1));
+  } else {
+    sp->ParseInput(input);
+  }
+
+  return sp.forget();
+}
+
+/* static */ already_AddRefed<URLSearchParams>
+URLSearchParams::Constructor(const GlobalObject& aGlobal,
+                             URLSearchParams& aInit,
+                             ErrorResult& aRv)
+{
+  RefPtr<URLSearchParams> sp =
+    new URLSearchParams(aGlobal.GetAsSupports(), aInit);
+
+  return sp.forget();
+}
+
+void
+URLSearchParams::ParseInput(const nsACString& aInput)
+{
+  mParams->ParseInput(aInput);
+}
+
+void
+URLSearchParams::Get(const nsAString& aName, nsString& aRetval)
+{
+  return mParams->Get(aName, aRetval);
+}
+
+void
+URLSearchParams::GetAll(const nsAString& aName, nsTArray<nsString>& aRetval)
+{
+  return mParams->GetAll(aName, aRetval);
+}
+
+void
+URLSearchParams::Set(const nsAString& aName, const nsAString& aValue)
+{
+  mParams->Set(aName, aValue);
+  NotifyObserver();
+}
+
+void
+URLSearchParams::Append(const nsAString& aName, const nsAString& aValue)
+{
+  mParams->Append(aName, aValue);
+  NotifyObserver();
+}
+
+bool
+URLSearchParams::Has(const nsAString& aName)
+{
+  return mParams->Has(aName);
+}
+
+void
+URLSearchParams::Delete(const nsAString& aName)
+{
+  if (mParams->Delete(aName)) {
+    NotifyObserver();
+  }
+}
+
+void
+URLSearchParams::DeleteAll()
+{
+  mParams->DeleteAll();
+}
+
+void
+URLSearchParams::Serialize(nsAString& aValue) const
+{
+  mParams->Serialize(aValue);
+}
+
+void
+URLSearchParams::NotifyObserver()
+{
+  if (mObserver) {
+    mObserver->URLSearchParamsUpdated(this);
+  }
+}
+
+uint32_t
+URLSearchParams::GetIterableLength() const
+{
+  return mParams->Length();
+}
+
+const nsAString&
+URLSearchParams::GetKeyAtIndex(uint32_t aIndex) const
+{
+  return mParams->GetKeyAtIndex(aIndex);
+}
+
+const nsAString&
+URLSearchParams::GetValueAtIndex(uint32_t aIndex) const
+{
+  return mParams->GetValueAtIndex(aIndex);
+}
+
+// Helper functions for structured cloning
+inline bool
+ReadString(JSStructuredCloneReader* aReader, nsString& aString)
+{
+  MOZ_ASSERT(aReader);
+
+  bool read;
+  uint32_t nameLength, zero;
+  read = JS_ReadUint32Pair(aReader, &nameLength, &zero);
+  if (!read) {
+    return false;
+  }
+  MOZ_ASSERT(zero == 0);
+  aString.SetLength(nameLength);
+  size_t charSize = sizeof(nsString::char_type);
+  read = JS_ReadBytes(aReader, (void*) aString.BeginWriting(),
+                      nameLength * charSize);
+  if (!read) {
+    return false;
+  }
+
+  return true;
+}
+
+inline bool
+WriteString(JSStructuredCloneWriter* aWriter, const nsString& aString)
+{
+  MOZ_ASSERT(aWriter);
+
+  size_t charSize = sizeof(nsString::char_type);
+  return JS_WriteUint32Pair(aWriter, aString.Length(), 0) &&
+         JS_WriteBytes(aWriter, aString.get(), aString.Length() * charSize);
+}
+
+bool
+URLParams::WriteStructuredClone(JSStructuredCloneWriter* aWriter) const
+{
+  const uint32_t& nParams = mParams.Length();
+  if (!JS_WriteUint32Pair(aWriter, nParams, 0)) {
+    return false;
+  }
+  for (uint32_t i = 0; i < nParams; ++i) {
+    if (!WriteString(aWriter, mParams[i].mKey) ||
+        !WriteString(aWriter, mParams[i].mValue)) {
+      return false;
+    }
+  }
+  return true;
+}
+
+bool
+URLParams::ReadStructuredClone(JSStructuredCloneReader* aReader)
+{
+  MOZ_ASSERT(aReader);
+
+  DeleteAll();
+
+  uint32_t nParams, zero;
+  nsAutoString key, value;
+  if (!JS_ReadUint32Pair(aReader, &nParams, &zero)) {
+    return false;
+  }
+  MOZ_ASSERT(zero == 0);
+  for (uint32_t i = 0; i < nParams; ++i) {
+    if (!ReadString(aReader, key) || !ReadString(aReader, value)) {
+      return false;
+    }
+    Append(key, value);
+  }
+  return true;
+}
+
+bool
+URLSearchParams::WriteStructuredClone(JSStructuredCloneWriter* aWriter) const
+{
+  return mParams->WriteStructuredClone(aWriter);
+}
+
+bool
+URLSearchParams::ReadStructuredClone(JSStructuredCloneReader* aReader)
+{
+ return mParams->ReadStructuredClone(aReader);
+}
+
+NS_IMETHODIMP
+URLSearchParams::GetSendInfo(nsIInputStream** aBody, uint64_t* aContentLength,
+                             nsACString& aContentType, nsACString& aCharset)
+{
+  aContentType.AssignLiteral("application/x-www-form-urlencoded");
+  aCharset.AssignLiteral("UTF-8");
+
+  nsAutoString serialized;
+  Serialize(serialized);
+  NS_ConvertUTF16toUTF8 converted(serialized);
+  *aContentLength = converted.Length();
+  return NS_NewCStringInputStream(aBody, converted);
+}
+
+} // namespace dom
+} // namespace mozilla