0ct0pu5/ladybird
1
0
Fork 0
mirror of https://github.com/LadybirdBrowser/ladybird.git synced 2024-12-24 23:23:58 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 8

LibHTTP: Handle chunk sizes that start with zeros correctly

Browse source 
Apparently that's allowed and the RFC is just unclear about it.
Some servers seem to zero-pad the chunk size for whatever reason, and
previously, we interpreted that as the last chunk.
This commit is contained in:
AnotherTest 2020-05-21 00:36:54 +04:30 committed by Andreas Kling
parent 7d76299ca9
commit 50c0944767
Notes: sideshowbarker 2024-07-19 06:18:01 +09:00 
Author: https://github.com/alimpfard
Commit: https://github.com/SerenityOS/serenity/commit/50c0944767f
Pull-request: https://github.com/SerenityOS/serenity/pull/2312
1 changed files with 13 additions and 9 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

22
Libraries/LibHTTP/Job.cpp
View file

@ -163,13 +163,24 @@ void Job::on_socket_connected()
// read size
auto size_data = read_line(PAGE_SIZE);
auto size_lines = StringView { size_data.data(), size_data.size() }.lines();
#ifdef JOB_DEBUG
dbg() << "Job: Received a chunk with size _" << size_data << "_";
#endif
if (size_lines.size() == 0) {
dbg() << "Job: Reached end of stream";
m_state = State::AfterChunkedEncodingTrailer;
return IterationDecision::Break;
} else {
String size_string = size_lines[0];
if (size_string.starts_with('0')) {
auto chunk = size_lines[0].split_view(';', true);
String size_string = chunk[0];
char* endptr;
auto size = strtoul(size_string.characters(), &endptr, 16);
if (*endptr) {
// invalid number
deferred_invoke([this](auto&) { did_fail(Core::NetworkJob::Error::TransmissionFailed); });
return IterationDecision::Break;
}
if (size == 0) {
// This is the last chunk
// '0' *[; chunk-ext-name = chunk-ext-value]
// We're going to ignore _all_ chunk extensions
@ -180,13 +191,6 @@ void Job::on_socket_connected()
dbg() << "Job: Received the last chunk with extensions _" << size_string.substring_view(1, size_string.length() - 1) << "_";
#endif
} else {
char* endptr;
auto size = strtoul(size_string.characters(), &endptr, 16);
if (*endptr) {
// invalid number
deferred_invoke([this](auto&) { did_fail(Core::NetworkJob::Error::TransmissionFailed); });
return IterationDecision::Break;
}
m_current_chunk_total_size = size;
m_current_chunk_remaining_size = size;
read_size = size;