Adding upstream version 124.0.1.upstream/124.0.1

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

1 files changed, 1051 insertions, 0 deletions

diff --git a/netwerk/streamconv/converters/nsMultiMixedConv.cpp b/netwerk/streamconv/converters/nsMultiMixedConv.cpp
new file mode 100644
index 0000000000..fb21d6673f
--- /dev/null
+++ b/netwerk/streamconv/converters/nsMultiMixedConv.cpp
@@ -0,0 +1,1051 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* 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 "nsMultiMixedConv.h"
+#include "nsIHttpChannel.h"
+#include "nsIThreadRetargetableStreamListener.h"
+#include "nsNetCID.h"
+#include "nsMimeTypes.h"
+#include "nsIStringStream.h"
+#include "nsCRT.h"
+#include "nsIHttpChannelInternal.h"
+#include "nsURLHelper.h"
+#include "nsIStreamConverterService.h"
+#include <algorithm>
+#include "nsContentSecurityManager.h"
+#include "nsHttp.h"
+#include "nsNetUtil.h"
+#include "nsIURI.h"
+#include "nsHttpHeaderArray.h"
+#include "mozilla/AutoRestore.h"
+#include "mozilla/Tokenizer.h"
+#include "nsComponentManagerUtils.h"
+#include "mozilla/StaticPrefs_network.h"
+
+using namespace mozilla;
+
+nsPartChannel::nsPartChannel(nsIChannel* aMultipartChannel, uint32_t aPartID,
+                             bool aIsFirstPart, nsIStreamListener* aListener)
+    : mMultipartChannel(aMultipartChannel),
+      mListener(aListener),
+      mPartID(aPartID),
+      mIsFirstPart(aIsFirstPart) {
+  // Inherit the load flags from the original channel...
+  mMultipartChannel->GetLoadFlags(&mLoadFlags);
+
+  mMultipartChannel->GetLoadGroup(getter_AddRefs(mLoadGroup));
+}
+
+void nsPartChannel::InitializeByteRange(int64_t aStart, int64_t aEnd) {
+  mIsByteRangeRequest = true;
+
+  mByteRangeStart = aStart;
+  mByteRangeEnd = aEnd;
+}
+
+nsresult nsPartChannel::SendOnStartRequest(nsISupports* aContext) {
+  return mListener->OnStartRequest(this);
+}
+
+nsresult nsPartChannel::SendOnDataAvailable(nsISupports* aContext,
+                                            nsIInputStream* aStream,
+                                            uint64_t aOffset, uint32_t aLen) {
+  return mListener->OnDataAvailable(this, aStream, aOffset, aLen);
+}
+
+nsresult nsPartChannel::SendOnStopRequest(nsISupports* aContext,
+                                          nsresult aStatus) {
+  // Drop the listener
+  nsCOMPtr<nsIStreamListener> listener;
+  listener.swap(mListener);
+  return listener->OnStopRequest(this, aStatus);
+}
+
+void nsPartChannel::SetContentDisposition(
+    const nsACString& aContentDispositionHeader) {
+  mContentDispositionHeader = aContentDispositionHeader;
+  nsCOMPtr<nsIURI> uri;
+  GetURI(getter_AddRefs(uri));
+  NS_GetFilenameFromDisposition(mContentDispositionFilename,
+                                mContentDispositionHeader);
+  mContentDisposition =
+      NS_GetContentDispositionFromHeader(mContentDispositionHeader, this);
+}
+
+//
+// nsISupports implementation...
+//
+
+NS_IMPL_ADDREF(nsPartChannel)
+NS_IMPL_RELEASE(nsPartChannel)
+
+NS_INTERFACE_MAP_BEGIN(nsPartChannel)
+  NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIChannel)
+  NS_INTERFACE_MAP_ENTRY(nsIRequest)
+  NS_INTERFACE_MAP_ENTRY(nsIChannel)
+  NS_INTERFACE_MAP_ENTRY(nsIByteRangeRequest)
+  NS_INTERFACE_MAP_ENTRY(nsIMultiPartChannel)
+NS_INTERFACE_MAP_END
+
+//
+// nsIRequest implementation...
+//
+
+NS_IMETHODIMP
+nsPartChannel::GetName(nsACString& aResult) {
+  return mMultipartChannel->GetName(aResult);
+}
+
+NS_IMETHODIMP
+nsPartChannel::IsPending(bool* aResult) {
+  // For now, consider the active lifetime of each part the same as
+  // the underlying multipart channel...  This is not exactly right,
+  // but it is good enough :-)
+  return mMultipartChannel->IsPending(aResult);
+}
+
+NS_IMETHODIMP
+nsPartChannel::GetStatus(nsresult* aResult) {
+  nsresult rv = NS_OK;
+
+  if (NS_FAILED(mStatus)) {
+    *aResult = mStatus;
+  } else {
+    rv = mMultipartChannel->GetStatus(aResult);
+  }
+
+  return rv;
+}
+
+NS_IMETHODIMP nsPartChannel::SetCanceledReason(const nsACString& aReason) {
+  return SetCanceledReasonImpl(aReason);
+}
+
+NS_IMETHODIMP nsPartChannel::GetCanceledReason(nsACString& aReason) {
+  return GetCanceledReasonImpl(aReason);
+}
+
+NS_IMETHODIMP nsPartChannel::CancelWithReason(nsresult aStatus,
+                                              const nsACString& aReason) {
+  return CancelWithReasonImpl(aStatus, aReason);
+}
+
+NS_IMETHODIMP
+nsPartChannel::Cancel(nsresult aStatus) {
+  // Cancelling an individual part must not cancel the underlying
+  // multipart channel...
+  // XXX but we should stop sending data for _this_ part channel!
+  mStatus = aStatus;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsPartChannel::GetCanceled(bool* aCanceled) {
+  *aCanceled = NS_FAILED(mStatus);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsPartChannel::Suspend(void) {
+  // Suspending an individual part must not suspend the underlying
+  // multipart channel...
+  // XXX why not?
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsPartChannel::Resume(void) {
+  // Resuming an individual part must not resume the underlying
+  // multipart channel...
+  // XXX why not?
+  return NS_OK;
+}
+
+//
+// nsIChannel implementation
+//
+
+NS_IMETHODIMP
+nsPartChannel::GetOriginalURI(nsIURI** aURI) {
+  return mMultipartChannel->GetOriginalURI(aURI);
+}
+
+NS_IMETHODIMP
+nsPartChannel::SetOriginalURI(nsIURI* aURI) {
+  return mMultipartChannel->SetOriginalURI(aURI);
+}
+
+NS_IMETHODIMP
+nsPartChannel::GetURI(nsIURI** aURI) { return mMultipartChannel->GetURI(aURI); }
+
+NS_IMETHODIMP
+nsPartChannel::Open(nsIInputStream** aStream) {
+  nsCOMPtr<nsIStreamListener> listener;
+  nsresult rv =
+      nsContentSecurityManager::doContentSecurityCheck(this, listener);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  // This channel cannot be opened!
+  return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP
+nsPartChannel::AsyncOpen(nsIStreamListener* aListener) {
+  nsCOMPtr<nsIStreamListener> listener = aListener;
+  nsresult rv =
+      nsContentSecurityManager::doContentSecurityCheck(this, listener);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  // This channel cannot be opened!
+  return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP
+nsPartChannel::GetLoadFlags(nsLoadFlags* aLoadFlags) {
+  *aLoadFlags = mLoadFlags;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsPartChannel::SetLoadFlags(nsLoadFlags aLoadFlags) {
+  mLoadFlags = aLoadFlags;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsPartChannel::GetTRRMode(nsIRequest::TRRMode* aTRRMode) {
+  return GetTRRModeImpl(aTRRMode);
+}
+
+NS_IMETHODIMP
+nsPartChannel::SetTRRMode(nsIRequest::TRRMode aTRRMode) {
+  return SetTRRModeImpl(aTRRMode);
+}
+
+NS_IMETHODIMP
+nsPartChannel::GetIsDocument(bool* aIsDocument) {
+  return NS_GetIsDocumentChannel(this, aIsDocument);
+}
+
+NS_IMETHODIMP
+nsPartChannel::GetLoadGroup(nsILoadGroup** aLoadGroup) {
+  *aLoadGroup = do_AddRef(mLoadGroup).take();
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsPartChannel::SetLoadGroup(nsILoadGroup* aLoadGroup) {
+  mLoadGroup = aLoadGroup;
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsPartChannel::GetOwner(nsISupports** aOwner) {
+  return mMultipartChannel->GetOwner(aOwner);
+}
+
+NS_IMETHODIMP
+nsPartChannel::SetOwner(nsISupports* aOwner) {
+  return mMultipartChannel->SetOwner(aOwner);
+}
+
+NS_IMETHODIMP
+nsPartChannel::GetLoadInfo(nsILoadInfo** aLoadInfo) {
+  return mMultipartChannel->GetLoadInfo(aLoadInfo);
+}
+
+NS_IMETHODIMP
+nsPartChannel::SetLoadInfo(nsILoadInfo* aLoadInfo) {
+  MOZ_RELEASE_ASSERT(aLoadInfo, "loadinfo can't be null");
+  return mMultipartChannel->SetLoadInfo(aLoadInfo);
+}
+
+NS_IMETHODIMP
+nsPartChannel::GetNotificationCallbacks(nsIInterfaceRequestor** aCallbacks) {
+  return mMultipartChannel->GetNotificationCallbacks(aCallbacks);
+}
+
+NS_IMETHODIMP
+nsPartChannel::SetNotificationCallbacks(nsIInterfaceRequestor* aCallbacks) {
+  return mMultipartChannel->SetNotificationCallbacks(aCallbacks);
+}
+
+NS_IMETHODIMP
+nsPartChannel::GetSecurityInfo(nsITransportSecurityInfo** aSecurityInfo) {
+  return mMultipartChannel->GetSecurityInfo(aSecurityInfo);
+}
+
+NS_IMETHODIMP
+nsPartChannel::GetContentType(nsACString& aContentType) {
+  aContentType = mContentType;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsPartChannel::SetContentType(const nsACString& aContentType) {
+  bool dummy;
+  net_ParseContentType(aContentType, mContentType, mContentCharset, &dummy);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsPartChannel::GetContentCharset(nsACString& aContentCharset) {
+  aContentCharset = mContentCharset;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsPartChannel::SetContentCharset(const nsACString& aContentCharset) {
+  mContentCharset = aContentCharset;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsPartChannel::GetContentLength(int64_t* aContentLength) {
+  *aContentLength = mContentLength;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsPartChannel::SetContentLength(int64_t aContentLength) {
+  mContentLength = aContentLength;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsPartChannel::GetContentDisposition(uint32_t* aContentDisposition) {
+  if (mContentDispositionHeader.IsEmpty()) return NS_ERROR_NOT_AVAILABLE;
+
+  *aContentDisposition = mContentDisposition;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsPartChannel::SetContentDisposition(uint32_t aContentDisposition) {
+  return NS_ERROR_NOT_AVAILABLE;
+}
+
+NS_IMETHODIMP
+nsPartChannel::GetContentDispositionFilename(
+    nsAString& aContentDispositionFilename) {
+  if (mContentDispositionFilename.IsEmpty()) return NS_ERROR_NOT_AVAILABLE;
+
+  aContentDispositionFilename = mContentDispositionFilename;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsPartChannel::SetContentDispositionFilename(
+    const nsAString& aContentDispositionFilename) {
+  return NS_ERROR_NOT_AVAILABLE;
+}
+
+NS_IMETHODIMP
+nsPartChannel::GetContentDispositionHeader(
+    nsACString& aContentDispositionHeader) {
+  if (mContentDispositionHeader.IsEmpty()) return NS_ERROR_NOT_AVAILABLE;
+
+  aContentDispositionHeader = mContentDispositionHeader;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsPartChannel::GetPartID(uint32_t* aPartID) {
+  *aPartID = mPartID;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsPartChannel::GetIsFirstPart(bool* aIsFirstPart) {
+  *aIsFirstPart = mIsFirstPart;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsPartChannel::GetIsLastPart(bool* aIsLastPart) {
+  *aIsLastPart = mIsLastPart;
+  return NS_OK;
+}
+
+//
+// nsIByteRangeRequest implementation...
+//
+
+NS_IMETHODIMP
+nsPartChannel::GetIsByteRangeRequest(bool* aIsByteRangeRequest) {
+  *aIsByteRangeRequest = mIsByteRangeRequest;
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsPartChannel::GetStartRange(int64_t* aStartRange) {
+  *aStartRange = mByteRangeStart;
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsPartChannel::GetEndRange(int64_t* aEndRange) {
+  *aEndRange = mByteRangeEnd;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsPartChannel::GetBaseChannel(nsIChannel** aReturn) {
+  NS_ENSURE_ARG_POINTER(aReturn);
+
+  *aReturn = do_AddRef(mMultipartChannel).take();
+  return NS_OK;
+}
+
+// nsISupports implementation
+NS_IMPL_ISUPPORTS(nsMultiMixedConv, nsIStreamConverter, nsIStreamListener,
+                  nsIThreadRetargetableStreamListener, nsIRequestObserver)
+
+// nsIStreamConverter implementation
+
+// No syncronous conversion at this time.
+NS_IMETHODIMP
+nsMultiMixedConv::Convert(nsIInputStream* aFromStream, const char* aFromType,
+                          const char* aToType, nsISupports* aCtxt,
+                          nsIInputStream** _retval) {
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+// Stream converter service calls this to initialize the actual stream converter
+// (us).
+NS_IMETHODIMP
+nsMultiMixedConv::AsyncConvertData(const char* aFromType, const char* aToType,
+                                   nsIStreamListener* aListener,
+                                   nsISupports* aCtxt) {
+  NS_ASSERTION(aListener && aFromType && aToType,
+               "null pointer passed into multi mixed converter");
+
+  // hook up our final listener. this guy gets the various On*() calls we want
+  // to throw at him.
+  //
+  // WARNING: this listener must be able to handle multiple OnStartRequest,
+  // OnDataAvail() and OnStopRequest() call combinations. We call of series
+  // of these for each sub-part in the raw stream.
+  mFinalListener = aListener;
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsMultiMixedConv::GetConvertedType(const nsACString& aFromType,
+                                   nsIChannel* aChannel, nsACString& aToType) {
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+// nsIRequestObserver implementation
+NS_IMETHODIMP
+nsMultiMixedConv::OnStartRequest(nsIRequest* request) {
+  // we're assuming the content-type is available at this stage
+  NS_ASSERTION(mBoundary.IsEmpty(), "a second on start???");
+
+  nsresult rv;
+
+  mTotalSent = 0;
+  mChannel = do_QueryInterface(request, &rv);
+  if (NS_FAILED(rv)) return rv;
+
+  nsAutoCString contentType;
+
+  // ask the HTTP channel for the content-type and extract the boundary from it.
+  nsCOMPtr<nsIHttpChannel> httpChannel = do_QueryInterface(mChannel, &rv);
+  if (NS_SUCCEEDED(rv)) {
+    rv = httpChannel->GetResponseHeader("content-type"_ns, contentType);
+    if (NS_FAILED(rv)) {
+      return rv;
+    }
+    nsCString csp;
+    rv = httpChannel->GetResponseHeader("content-security-policy"_ns, csp);
+    if (NS_SUCCEEDED(rv)) {
+      mRootContentSecurityPolicy = csp;
+    }
+  } else {
+    // try asking the channel directly
+    rv = mChannel->GetContentType(contentType);
+    if (NS_FAILED(rv)) {
+      return NS_ERROR_FAILURE;
+    }
+  }
+
+  Tokenizer p(contentType);
+  p.SkipUntil(Token::Char(';'));
+  if (!p.CheckChar(';')) {
+    return NS_ERROR_CORRUPTED_CONTENT;
+  }
+  p.SkipWhites();
+  if (!p.CheckWord("boundary")) {
+    return NS_ERROR_CORRUPTED_CONTENT;
+  }
+  p.SkipWhites();
+  if (!p.CheckChar('=')) {
+    return NS_ERROR_CORRUPTED_CONTENT;
+  }
+  p.SkipWhites();
+  Unused << p.ReadUntil(Token::Char(';'), mBoundary);
+  mBoundary.Trim(
+      " \"");  // ignoring potential quoted string formatting violations
+  if (mBoundary.IsEmpty()) {
+    return NS_ERROR_CORRUPTED_CONTENT;
+  }
+
+  mHeaderTokens[HEADER_CONTENT_TYPE] = mTokenizer.AddCustomToken(
+      "content-type", mTokenizer.CASE_INSENSITIVE, false);
+  mHeaderTokens[HEADER_CONTENT_LENGTH] = mTokenizer.AddCustomToken(
+      "content-length", mTokenizer.CASE_INSENSITIVE, false);
+  mHeaderTokens[HEADER_CONTENT_DISPOSITION] = mTokenizer.AddCustomToken(
+      "content-disposition", mTokenizer.CASE_INSENSITIVE, false);
+  mHeaderTokens[HEADER_SET_COOKIE] = mTokenizer.AddCustomToken(
+      "set-cookie", mTokenizer.CASE_INSENSITIVE, false);
+  mHeaderTokens[HEADER_CONTENT_RANGE] = mTokenizer.AddCustomToken(
+      "content-range", mTokenizer.CASE_INSENSITIVE, false);
+  mHeaderTokens[HEADER_RANGE] =
+      mTokenizer.AddCustomToken("range", mTokenizer.CASE_INSENSITIVE, false);
+  mHeaderTokens[HEADER_CONTENT_SECURITY_POLICY] = mTokenizer.AddCustomToken(
+      "content-security-policy", mTokenizer.CASE_INSENSITIVE, false);
+
+  mLFToken = mTokenizer.AddCustomToken("\n", mTokenizer.CASE_SENSITIVE, false);
+  mCRLFToken =
+      mTokenizer.AddCustomToken("\r\n", mTokenizer.CASE_SENSITIVE, false);
+
+  SwitchToControlParsing();
+
+  mBoundaryToken =
+      mTokenizer.AddCustomToken(mBoundary, mTokenizer.CASE_SENSITIVE);
+  mBoundaryTokenWithDashes =
+      mTokenizer.AddCustomToken("--"_ns + mBoundary, mTokenizer.CASE_SENSITIVE);
+
+  return NS_OK;
+}
+
+// nsIStreamListener implementation
+NS_IMETHODIMP
+nsMultiMixedConv::OnDataAvailable(nsIRequest* request, nsIInputStream* inStr,
+                                  uint64_t sourceOffset, uint32_t count) {
+  // Failing these assertions may indicate that some of the target listeners of
+  // this converter is looping the thead queue, which is harmful to how we
+  // collect the raw (content) data.
+  MOZ_DIAGNOSTIC_ASSERT(!mInOnDataAvailable,
+                        "nsMultiMixedConv::OnDataAvailable reentered!");
+  MOZ_DIAGNOSTIC_ASSERT(
+      !mRawData, "There are unsent data from the previous tokenizer feed!");
+
+  if (mInOnDataAvailable) {
+    // The multipart logic is incapable of being reentered.
+    return NS_ERROR_UNEXPECTED;
+  }
+
+  mozilla::AutoRestore<bool> restore(mInOnDataAvailable);
+  mInOnDataAvailable = true;
+
+  nsresult rv_feed = mTokenizer.FeedInput(inStr, count);
+  // We must do this every time.  Regardless if something has failed during the
+  // parsing process.  Otherwise the raw data reference would not be thrown
+  // away.
+  nsresult rv_send = SendData();
+
+  return NS_FAILED(rv_send) ? rv_send : rv_feed;
+}
+
+NS_IMETHODIMP
+nsMultiMixedConv::OnDataFinished(nsresult aStatus) { return NS_OK; }
+
+NS_IMETHODIMP
+nsMultiMixedConv::CheckListenerChain() { return NS_ERROR_NOT_IMPLEMENTED; }
+
+NS_IMETHODIMP
+nsMultiMixedConv::OnStopRequest(nsIRequest* request, nsresult aStatus) {
+  nsresult rv;
+
+  if (mPartChannel) {
+    mPartChannel->SetIsLastPart();
+
+    MOZ_DIAGNOSTIC_ASSERT(
+        !mRawData, "There are unsent data from the previous tokenizer feed!");
+
+    rv = mTokenizer.FinishInput();
+    if (NS_SUCCEEDED(aStatus)) {
+      aStatus = rv;
+    }
+    rv = SendData();
+    if (NS_SUCCEEDED(aStatus)) {
+      aStatus = rv;
+    }
+
+    (void)SendStop(aStatus);
+  } else if (NS_FAILED(aStatus) && !mRequestListenerNotified) {
+    // underlying data production problem. we should not be in
+    // the middle of sending data. if we were, mPartChannel,
+    // above, would have been non-null.
+
+    (void)mFinalListener->OnStartRequest(request);
+    (void)mFinalListener->OnStopRequest(request, aStatus);
+  }
+
+  nsCOMPtr<nsIMultiPartChannelListener> multiListener =
+      do_QueryInterface(mFinalListener);
+  if (multiListener) {
+    multiListener->OnAfterLastPart(aStatus);
+  }
+
+  return NS_OK;
+}
+
+nsresult nsMultiMixedConv::ConsumeToken(Token const& token) {
+  nsresult rv;
+
+  switch (mParserState) {
+    case PREAMBLE:
+      if (token.Equals(mBoundaryTokenWithDashes)) {
+        // The server first used boundary '--boundary'.  Hence, we no longer
+        // accept plain 'boundary' token as a delimiter.
+        mTokenizer.RemoveCustomToken(mBoundaryToken);
+        mParserState = BOUNDARY_CRLF;
+        break;
+      }
+      if (token.Equals(mBoundaryToken)) {
+        // And here the opposite from the just above block...
+        mTokenizer.RemoveCustomToken(mBoundaryTokenWithDashes);
+        mParserState = BOUNDARY_CRLF;
+        break;
+      }
+
+      // This is a preamble, just ignore it and wait for the boundary.
+      break;
+
+    case BOUNDARY_CRLF:
+      if (token.Equals(Token::NewLine())) {
+        mParserState = HEADER_NAME;
+        mResponseHeader = HEADER_UNKNOWN;
+        HeadersToDefault();
+        SetHeaderTokensEnabled(true);
+        break;
+      }
+      return NS_ERROR_CORRUPTED_CONTENT;
+
+    case HEADER_NAME:
+      SetHeaderTokensEnabled(false);
+      if (token.Equals(Token::NewLine())) {
+        mParserState = BODY_INIT;
+        SwitchToBodyParsing();
+        break;
+      }
+      for (uint32_t h = HEADER_CONTENT_TYPE; h < HEADER_UNKNOWN; ++h) {
+        if (token.Equals(mHeaderTokens[h])) {
+          mResponseHeader = static_cast<EHeader>(h);
+          break;
+        }
+      }
+      mParserState = HEADER_SEP;
+      break;
+
+    case HEADER_SEP:
+      if (token.Equals(Token::Char(':'))) {
+        mParserState = HEADER_VALUE;
+        mResponseHeaderValue.Truncate();
+        break;
+      }
+      if (mResponseHeader == HEADER_UNKNOWN) {
+        // If the header is not of any we understand, just pass everything till
+        // ':'
+        break;
+      }
+      if (token.Equals(Token::Whitespace())) {
+        // Accept only header-name traling whitespaces after known headers
+        break;
+      }
+      return NS_ERROR_CORRUPTED_CONTENT;
+
+    case HEADER_VALUE:
+      if (token.Equals(Token::Whitespace()) && mResponseHeaderValue.IsEmpty()) {
+        // Eat leading whitespaces
+        break;
+      }
+      if (token.Equals(Token::NewLine())) {
+        nsresult rv = ProcessHeader();
+        if (NS_FAILED(rv)) {
+          return rv;
+        }
+        mParserState = HEADER_NAME;
+        mResponseHeader = HEADER_UNKNOWN;
+        SetHeaderTokensEnabled(true);
+      } else {
+        mResponseHeaderValue.Append(token.Fragment());
+      }
+      break;
+
+    case BODY_INIT:
+      rv = SendStart();
+      if (NS_FAILED(rv)) {
+        return rv;
+      }
+      mParserState = BODY;
+      [[fallthrough]];
+
+    case BODY: {
+      if (!token.Equals(mLFToken) && !token.Equals(mCRLFToken)) {
+        if (token.Equals(mBoundaryTokenWithDashes) ||
+            token.Equals(mBoundaryToken)) {
+          // Allow CRLF to NOT be part of the boundary as well
+          SwitchToControlParsing();
+          mParserState = TRAIL_DASH1;
+          break;
+        }
+        AccumulateData(token);
+        break;
+      }
+
+      // After CRLF we must explicitly check for boundary.  If found,
+      // that CRLF is part of the boundary and must not be send to the
+      // data listener.
+      Token token2;
+      if (!mTokenizer.Next(token2)) {
+        // Note: this will give us the CRLF token again when more data
+        // or OnStopRequest arrive.  I.e. we will enter BODY case in
+        // the very same state as we are now and start this block over.
+        mTokenizer.NeedMoreInput();
+        break;
+      }
+      if (token2.Equals(mBoundaryTokenWithDashes) ||
+          token2.Equals(mBoundaryToken)) {
+        SwitchToControlParsing();
+        mParserState = TRAIL_DASH1;
+        break;
+      }
+
+      AccumulateData(token);
+      AccumulateData(token2);
+      break;
+    }
+
+    case TRAIL_DASH1:
+      if (token.Equals(Token::NewLine())) {
+        rv = SendStop(NS_OK);
+        if (NS_FAILED(rv)) {
+          return rv;
+        }
+        mParserState = BOUNDARY_CRLF;
+        mTokenizer.Rollback();
+        break;
+      }
+      if (token.Equals(Token::Char('-'))) {
+        mParserState = TRAIL_DASH2;
+        break;
+      }
+      return NS_ERROR_CORRUPTED_CONTENT;
+
+    case TRAIL_DASH2:
+      if (token.Equals(Token::Char('-'))) {
+        mPartChannel->SetIsLastPart();
+        // SendStop calls SendData first.
+        rv = SendStop(NS_OK);
+        if (NS_FAILED(rv)) {
+          return rv;
+        }
+        mParserState = EPILOGUE;
+        break;
+      }
+      return NS_ERROR_CORRUPTED_CONTENT;
+
+    case EPILOGUE:
+      // Just ignore
+      break;
+
+    default:
+      MOZ_ASSERT(false, "Missing parser state handling branch");
+      break;
+  }  // switch
+
+  return NS_OK;
+}
+
+void nsMultiMixedConv::SetHeaderTokensEnabled(bool aEnable) {
+  for (uint32_t h = HEADER_FIRST; h < HEADER_UNKNOWN; ++h) {
+    mTokenizer.EnableCustomToken(mHeaderTokens[h], aEnable);
+  }
+}
+
+void nsMultiMixedConv::SwitchToBodyParsing() {
+  mTokenizer.SetTokenizingMode(Tokenizer::Mode::CUSTOM_ONLY);
+  mTokenizer.EnableCustomToken(mLFToken, true);
+  mTokenizer.EnableCustomToken(mCRLFToken, true);
+  mTokenizer.EnableCustomToken(mBoundaryTokenWithDashes, true);
+  mTokenizer.EnableCustomToken(mBoundaryToken, true);
+}
+
+void nsMultiMixedConv::SwitchToControlParsing() {
+  mTokenizer.SetTokenizingMode(Tokenizer::Mode::FULL);
+  mTokenizer.EnableCustomToken(mLFToken, false);
+  mTokenizer.EnableCustomToken(mCRLFToken, false);
+  mTokenizer.EnableCustomToken(mBoundaryTokenWithDashes, false);
+  mTokenizer.EnableCustomToken(mBoundaryToken, false);
+}
+
+// nsMultiMixedConv methods
+nsMultiMixedConv::nsMultiMixedConv()
+    // XXX: This is a hack to bypass the raw pointer to refcounted object in
+    // lambda analysis. It should be removed and replaced when the
+    // IncrementalTokenizer API is improved to avoid the need for such
+    // workarounds.
+    //
+    // This is safe because `mTokenizer` will not outlive `this`, meaning
+    // that this std::bind object will be destroyed before `this` dies.
+    : mTokenizer(std::bind(&nsMultiMixedConv::ConsumeToken, this,
+                           std::placeholders::_1)) {}
+
+nsresult nsMultiMixedConv::SendStart() {
+  nsresult rv = NS_OK;
+
+  nsCOMPtr<nsIStreamListener> partListener(mFinalListener);
+  if (mContentType.IsEmpty()) {
+    mContentType.AssignLiteral(UNKNOWN_CONTENT_TYPE);
+    nsCOMPtr<nsIStreamConverterService> serv =
+        do_GetService(NS_STREAMCONVERTERSERVICE_CONTRACTID, &rv);
+    if (NS_SUCCEEDED(rv)) {
+      nsCOMPtr<nsIStreamListener> converter;
+      rv = serv->AsyncConvertData(UNKNOWN_CONTENT_TYPE, "*/*", mFinalListener,
+                                  mContext, getter_AddRefs(converter));
+      if (NS_SUCCEEDED(rv)) {
+        partListener = converter;
+      }
+    }
+  }
+
+  // if we already have an mPartChannel, that means we never sent a Stop()
+  // before starting up another "part." that would be bad.
+  MOZ_ASSERT(!mPartChannel, "tisk tisk, shouldn't be overwriting a channel");
+
+  nsPartChannel* newChannel;
+  newChannel = new nsPartChannel(mChannel, mCurrentPartID, mCurrentPartID == 0,
+                                 partListener);
+
+  ++mCurrentPartID;
+
+  if (mIsByteRangeRequest) {
+    newChannel->InitializeByteRange(mByteRangeStart, mByteRangeEnd);
+  }
+
+  mTotalSent = 0;
+
+  // Set up the new part channel...
+  mPartChannel = newChannel;
+
+  rv = mPartChannel->SetContentType(mContentType);
+  if (NS_FAILED(rv)) return rv;
+
+  rv = mPartChannel->SetContentLength(mContentLength);
+  if (NS_FAILED(rv)) return rv;
+
+  mPartChannel->SetContentDisposition(mContentDisposition);
+
+  // Each part of a multipart/replace response can be used
+  // for the top level document.  We must inform upper layers
+  // about this by setting the LOAD_REPLACE flag so that certain
+  // state assertions are evaluated as positive.
+  nsLoadFlags loadFlags = 0;
+  mPartChannel->GetLoadFlags(&loadFlags);
+  loadFlags |= nsIChannel::LOAD_REPLACE;
+  mPartChannel->SetLoadFlags(loadFlags);
+
+  nsCOMPtr<nsILoadGroup> loadGroup;
+  (void)mPartChannel->GetLoadGroup(getter_AddRefs(loadGroup));
+
+  // Add the new channel to the load group (if any)
+  if (loadGroup) {
+    rv = loadGroup->AddRequest(mPartChannel, nullptr);
+    if (NS_FAILED(rv)) return rv;
+  }
+
+  // This prevents artificial call to OnStart/StopRequest when the root
+  // channel fails.  Since now it's ensured to keep with the nsIStreamListener
+  // contract every time.
+  mRequestListenerNotified = true;
+
+  // Let's start off the load. NOTE: we don't forward on the channel passed
+  // into our OnDataAvailable() as it's the root channel for the raw stream.
+  return mPartChannel->SendOnStartRequest(mContext);
+}
+
+nsresult nsMultiMixedConv::SendStop(nsresult aStatus) {
+  // Make sure we send out all accumulcated data prior call to OnStopRequest.
+  // If there is no data, this is a no-op.
+  nsresult rv = SendData();
+  if (NS_SUCCEEDED(aStatus)) {
+    aStatus = rv;
+  }
+  if (mPartChannel) {
+    rv = mPartChannel->SendOnStopRequest(mContext, aStatus);
+    // don't check for failure here, we need to remove the channel from
+    // the loadgroup.
+
+    // Remove the channel from its load group (if any)
+    nsCOMPtr<nsILoadGroup> loadGroup;
+    (void)mPartChannel->GetLoadGroup(getter_AddRefs(loadGroup));
+    if (loadGroup) {
+      (void)loadGroup->RemoveRequest(mPartChannel, mContext, aStatus);
+    }
+  }
+
+  mPartChannel = nullptr;
+  return rv;
+}
+
+void nsMultiMixedConv::AccumulateData(Token const& aToken) {
+  if (!mRawData) {
+    // This is the first read of raw data during this FeedInput loop
+    // of the incremental tokenizer.  All 'raw' tokens are coming from
+    // the same linear buffer, hence begining of this loop raw data
+    // is begining of the first raw token.  Length of this loop raw
+    // data is just sum of all 'raw' tokens we collect during this loop.
+    //
+    // It's ensured we flush (send to to the listener via OnDataAvailable)
+    // and nullify the collected raw data right after FeedInput call.
+    // Hence, the reference can't outlive the actual buffer.
+    mRawData = aToken.Fragment().BeginReading();
+    mRawDataLength = 0;
+  }
+
+  mRawDataLength += aToken.Fragment().Length();
+}
+
+nsresult nsMultiMixedConv::SendData() {
+  nsresult rv;
+
+  if (!mRawData) {
+    return NS_OK;
+  }
+
+  nsACString::const_char_iterator rawData = mRawData;
+  mRawData = nullptr;
+
+  if (!mPartChannel) {
+    return NS_ERROR_FAILURE;  // something went wrong w/ processing
+  }
+
+  if (mContentLength != UINT64_MAX) {
+    // make sure that we don't send more than the mContentLength
+    // XXX why? perhaps the Content-Length header was actually wrong!!
+    if ((uint64_t(mRawDataLength) + mTotalSent) > mContentLength) {
+      mRawDataLength = static_cast<uint32_t>(mContentLength - mTotalSent);
+    }
+
+    if (mRawDataLength == 0) return NS_OK;
+  }
+
+  uint64_t offset = mTotalSent;
+  mTotalSent += mRawDataLength;
+
+  nsCOMPtr<nsIStringInputStream> ss(
+      do_CreateInstance("@mozilla.org/io/string-input-stream;1", &rv));
+  if (NS_FAILED(rv)) return rv;
+
+  rv = ss->ShareData(rawData, mRawDataLength);
+  mRawData = nullptr;
+  if (NS_FAILED(rv)) return rv;
+
+  return mPartChannel->SendOnDataAvailable(mContext, ss, offset,
+                                           mRawDataLength);
+}
+
+void nsMultiMixedConv::HeadersToDefault() {
+  mContentLength = UINT64_MAX;
+  mContentType.Truncate();
+  mContentDisposition.Truncate();
+  mContentSecurityPolicy.Truncate();
+  mIsByteRangeRequest = false;
+}
+
+nsresult nsMultiMixedConv::ProcessHeader() {
+  mozilla::Tokenizer p(mResponseHeaderValue);
+
+  switch (mResponseHeader) {
+    case HEADER_CONTENT_TYPE:
+      mContentType = mResponseHeaderValue;
+      mContentType.CompressWhitespace();
+      break;
+    case HEADER_CONTENT_LENGTH:
+      p.SkipWhites();
+      if (!p.ReadInteger(&mContentLength)) {
+        return NS_ERROR_CORRUPTED_CONTENT;
+      }
+      break;
+    case HEADER_CONTENT_DISPOSITION:
+      mContentDisposition = mResponseHeaderValue;
+      mContentDisposition.CompressWhitespace();
+      break;
+    case HEADER_SET_COOKIE: {
+      nsCOMPtr<nsIHttpChannelInternal> httpInternal =
+          do_QueryInterface(mChannel);
+      mResponseHeaderValue.CompressWhitespace();
+      if (!StaticPrefs::network_cookie_prevent_set_cookie_from_multipart() &&
+          httpInternal) {
+        DebugOnly<nsresult> rv = httpInternal->SetCookie(mResponseHeaderValue);
+        MOZ_ASSERT(NS_SUCCEEDED(rv));
+      }
+      break;
+    }
+    case HEADER_RANGE:
+    case HEADER_CONTENT_RANGE: {
+      if (!p.CheckWord("bytes") || !p.CheckWhite()) {
+        return NS_ERROR_CORRUPTED_CONTENT;
+      }
+      p.SkipWhites();
+      if (p.CheckChar('*')) {
+        mByteRangeStart = mByteRangeEnd = 0;
+      } else if (!p.ReadInteger(&mByteRangeStart) || !p.CheckChar('-') ||
+                 !p.ReadInteger(&mByteRangeEnd)) {
+        return NS_ERROR_CORRUPTED_CONTENT;
+      }
+      mIsByteRangeRequest = true;
+      if (mContentLength == UINT64_MAX) {
+        mContentLength = uint64_t(mByteRangeEnd - mByteRangeStart + 1);
+      }
+      break;
+    }
+    case HEADER_CONTENT_SECURITY_POLICY: {
+      mContentSecurityPolicy = mResponseHeaderValue;
+      mContentSecurityPolicy.CompressWhitespace();
+      nsCOMPtr<nsIHttpChannel> httpChannel = do_QueryInterface(mChannel);
+      if (httpChannel) {
+        nsCString resultCSP = mRootContentSecurityPolicy;
+        if (!mContentSecurityPolicy.IsEmpty()) {
+          // We are updating the root channel CSP header respectively for
+          // each part as: CSP-root + CSP-partN, where N is the part number.
+          // Here we append current part's CSP to root CSP and reset CSP
+          // header for each part.
+          if (!resultCSP.IsEmpty()) {
+            resultCSP.Append(";");
+          }
+          resultCSP.Append(mContentSecurityPolicy);
+        }
+        nsresult rv = httpChannel->SetResponseHeader(
+            "Content-Security-Policy"_ns, resultCSP, false);
+        if (NS_FAILED(rv)) {
+          return NS_ERROR_CORRUPTED_CONTENT;
+        }
+      }
+      break;
+    }
+    case HEADER_UNKNOWN:
+      // We ignore anything else...
+      break;
+  }
+
+  return NS_OK;
+}
+
+nsresult NS_NewMultiMixedConv(nsMultiMixedConv** aMultiMixedConv) {
+  MOZ_ASSERT(aMultiMixedConv != nullptr, "null ptr");
+
+  RefPtr<nsMultiMixedConv> conv = new nsMultiMixedConv();
+  conv.forget(aMultiMixedConv);
+  return NS_OK;
+}