uint32_t HPACKDecoder::decode(Cursor& cursor,
uint32_t totalBytes,
headers_t& headers) {
uint32_t emittedSize = 0;
HPACKDecodeBuffer dbuf(getHuffmanTree(), cursor, totalBytes);
while (!hasError() && !dbuf.empty()) {
emittedSize += decodeHeader(dbuf, &headers);
if (emittedSize > maxUncompressed_) {
LOG(ERROR) << "exceeded uncompressed size limit of "
<< maxUncompressed_ << " bytes";
err_ = DecodeError::HEADERS_TOO_LARGE;
return dbuf.consumedBytes();
}
}
if (version_ != Version::HPACK05) {
return dbuf.consumedBytes();
}
emittedSize += emitRefset(headers);
// the emitted bytes from the refset are bounded by the size of the table,
// but adding the check just for uniformity
if (emittedSize > maxUncompressed_) {
LOG(ERROR) << "exceeded uncompressed size limit of "
<< maxUncompressed_ << " bytes";
err_ = DecodeError::HEADERS_TOO_LARGE;
}
return dbuf.consumedBytes();
}
uint32_t HPACKDecoder::decode(Cursor& cursor,
uint32_t totalBytes,
headers_t& headers) {
uint32_t emittedSize = 0;
HPACKDecodeBuffer dbuf(getHuffmanTree(), cursor, totalBytes,
maxUncompressed_);
while (!hasError() && !dbuf.empty()) {
emittedSize += decodeHeader(dbuf, &headers);
if (emittedSize > maxUncompressed_) {
LOG(ERROR) << "exceeded uncompressed size limit of "
<< maxUncompressed_ << " bytes";
err_ = DecodeError::HEADERS_TOO_LARGE;
return dbuf.consumedBytes();
}
}
return dbuf.consumedBytes();
}
uint32_t HPACKDecoder::decodeStreaming(
Cursor& cursor,
uint32_t totalBytes,
HeaderCodec::StreamingCallback* streamingCb) {
uint32_t emittedSize = 0;
streamingCb_ = streamingCb;
HPACKDecodeBuffer dbuf(getHuffmanTree(), cursor, totalBytes,
maxUncompressed_);
while (!hasError() && !dbuf.empty()) {
emittedSize += decodeHeader(dbuf, nullptr);
if (emittedSize > maxUncompressed_) {
LOG(ERROR) << "exceeded uncompressed size limit of "
<< maxUncompressed_ << " bytes";
err_ = HPACK::DecodeError::HEADERS_TOO_LARGE;
return dbuf.consumedBytes();
}
}
return dbuf.consumedBytes();
}
