nginx.git/src/http/v2, branch release-1.13.8

HTTP/2: enforce writing the sync request body buffer to file.

2017-10-04T18:15:15+00:00

The sync flag of HTTP/2 request body buffer is used when the size of request
body is unknown or bigger than configured "client_body_buffer_size".  In this
case the buffer points to body data inside the global receive buffer that is
used for reading all HTTP/2 connections in the worker process.  Thus, when the
sync flag is set, the buffer must be flushed to a temporary file, otherwise
the request body data can be overwritten.

Previously, the sync buffer wasn't flushed to a temporary file if the whole
body was received in one DATA frame with the END_STREAM flag and wasn't
copied into the HTTP/2 body preread buffer.  As a result, the request body
might be corrupted (ticket #1384).

Now, setting r->request_body_in_file_only enforces writing the sync buffer
to a temporary file in all cases.

HTTP/2: shortened some debug log messages.

2017-09-14T16:06:06+00:00

This ensures slightly more readable debug logs on 80-character-wide
terminals.

HTTP/2: fixed debug log about indexed headers.

2017-09-14T16:06:05+00:00

Previously, "get indexed header" message was logged when in fact only
header name was obtained using an index, and "get indexed header name"
was logged when full header representation (name and value) was obtained
using an index.  Fixed version logs "get indexed name" and "get indexed
header" respectively.

HTTP/2: added logging of 400 (Bad Request) reasons.

2017-09-14T16:06:03+00:00

HTTP/2: signal 0-byte HPACK's dynamic table size.

2017-08-30T21:52:11+00:00

This change lets NGINX talk to clients with SETTINGS_HEADER_TABLE_SIZE
smaller than the default 4KB. Previously, NGINX would ACK the SETTINGS
frame with a small dynamic table size, but it would never send dynamic
table size update, leading to a connection-level COMPRESSION_ERROR.

Also, it allows clients to release 4KB of memory per connection, since
NGINX doesn't use HPACK's dynamic table when encoding headers, however
clients had to maintain it, since NGINX never signaled that it doesn't
use it.

Signed-off-by: Piotr Sikora

Variables: macros for null variables.

2017-08-01T11:28:33+00:00

No functional changes.

HTTP/2: added support for trailers in HTTP responses.

2017-03-24T10:37:34+00:00

Signed-off-by: Piotr Sikora

HTTP/2: reject HTTP/2 requests without ":scheme" pseudo-header.

2017-06-13T14:01:08+00:00

Signed-off-by: Piotr Sikora

HTTP/2: don't send SETTINGS ACK before already queued DATA frames.

2017-06-02T12:05:32+00:00

Previously, SETTINGS ACK was sent immediately upon receipt of SETTINGS
frame, before already queued DATA frames created using old SETTINGS.

This incorrect behavior was source of interoperability issues, because
peers rely on the fact that new SETTINGS are in effect after receiving
SETTINGS ACK.

Reported by Feng Li.

Signed-off-by: Piotr Sikora

HTTP/2: make SETTINGS ACK frame reusable.

2017-06-02T12:05:28+00:00

Signed-off-by: Piotr Sikora