nsresult
Http2Decompressor::DecodeHeaderBlock(const uint8_t *data, uint32_t datalen,
nsACString &output)
{
mAlternateReferenceSet.Clear();
mOffset = 0;
mData = data;
mDataLen = datalen;
mOutput = &output;
mOutput->Truncate();
mHeaderStatus.Truncate();
mHeaderHost.Truncate();
mHeaderScheme.Truncate();
mHeaderPath.Truncate();
mHeaderMethod.Truncate();
nsresult rv = NS_OK;
while (NS_SUCCEEDED(rv) && (mOffset < datalen)) {
if (mData[mOffset] & 0x80) {
rv = DoIndexed();
LOG(("Decompressor state after indexed"));
} else if (mData[mOffset] & 0x40) {
rv = DoLiteralWithIncremental();
LOG(("Decompressor state after literal with incremental"));
} else if (mData[mOffset] & 0x20) {
rv = DoContextUpdate();
LOG(("Decompressor state after context update"));
} else if (mData[mOffset] & 0x10) {
rv = DoLiteralNeverIndexed();
LOG(("Decompressor state after literal never index"));
} else {
rv = DoLiteralWithoutIndex();
LOG(("Decompressor state after literal without index"));
}
DumpState();
}
// after processing the input the decompressor comapres the alternate
// set to the inherited reference set and generates headers for
// anything implicit in reference - alternate.
uint32_t setLen = mReferenceSet.Length();
for (uint32_t index = 0; index < setLen; ++index) {
if (!mAlternateReferenceSet.Contains(mReferenceSet[index])) {
LOG(("HTTP decompressor carryover in reference set with index %u %s %s\n",
mReferenceSet[index],
mHeaderTable[mReferenceSet[index]]->mName.get(),
mHeaderTable[mReferenceSet[index]]->mValue.get()));
OutputHeader(mReferenceSet[index]);
}
}
mAlternateReferenceSet.Clear();
return rv;
}
nsresult
Http2Decompressor::DecodeHeaderBlock(const uint8_t *data, uint32_t datalen,
nsACString &output, bool isPush)
{
mOffset = 0;
mData = data;
mDataLen = datalen;
mOutput = &output;
mOutput->Truncate();
mHeaderStatus.Truncate();
mHeaderHost.Truncate();
mHeaderScheme.Truncate();
mHeaderPath.Truncate();
mHeaderMethod.Truncate();
mSeenNonColonHeader = false;
mIsPush = isPush;
nsresult rv = NS_OK;
while (NS_SUCCEEDED(rv) && (mOffset < datalen)) {
if (mData[mOffset] & 0x80) {
rv = DoIndexed();
LOG(("Decompressor state after indexed"));
} else if (mData[mOffset] & 0x40) {
rv = DoLiteralWithIncremental();
LOG(("Decompressor state after literal with incremental"));
} else if (mData[mOffset] & 0x20) {
rv = DoContextUpdate();
LOG(("Decompressor state after context update"));
} else if (mData[mOffset] & 0x10) {
rv = DoLiteralNeverIndexed();
LOG(("Decompressor state after literal never index"));
} else {
rv = DoLiteralWithoutIndex();
LOG(("Decompressor state after literal without index"));
}
DumpState();
}
return rv;
}