Commit Graph

524 Commits

Author SHA1 Message Date
Tatsuhiro Tsujikawa 45d4c9dece Add new error code NGHTTP2_ERR_PAUSE to send_data_callback
If application returns NGHTTP2_ERR_PAUSE from send_data_callback, it
means application processed all data, but wants to make
nghttp2_session_mem_send or nghttp2_session_send return immediately.
This is useful if application writes to fixed sized buffers, and there
is no room to write more data.
2015-10-03 17:16:42 +09:00
Tatsuhiro Tsujikawa d22ced77c0 Return fatal error if flooding is detected to close session immediately
This change adds new return error code from nghttp2_session_mem_recv
and nghttp2_session_recv functions, namely NGHTTP2_ERR_FLOODED.  It is
fatal error, and is returned when flooding was detected.
2015-09-30 22:19:03 +09:00
Tatsuhiro Tsujikawa 928a81885c Limit the number of incoming reserved (remote) streams
RFC 7540 does not enforce any limit on the number of incoming reserved
streams (in RFC 7540 terms, streams in reserved (remote) state).  This
only affects client side, since only server can push streams.
Malicious server can push arbitrary number of streams, and make
client's memory exhausted.  The new option,
nghttp2_set_max_reserved_remote_streams, can set the maximum number of
such incoming streams to avoid possible memory exhaustion.  If this
option is set, and pushed streams are automatically closed on
reception, without calling user provided callback, if they exceed the
given limit.  The default value is 200.  If session is configured as
server side, this option has no effect.  Server can control the number
of streams to push.
2015-08-23 21:43:41 +09:00
Tatsuhiro Tsujikawa 059280d1a5 Add stream public API
The intention of this stream API is give server application about
stream dependency information, so that it can utilize it for better
scheduling of stream processing.  We have no plan to add object
oriented API based on stream object.
2015-08-19 23:04:06 +09:00
Tatsuhiro Tsujikawa 7f71fed963 Allow multiple in-flight SETTINGS 2015-07-23 00:36:00 +09:00
Tatsuhiro Tsujikawa f3288092e8 Strictly check occurrence of dynamic table size update
RFC 7541 requires that dynamic table size update must occur at the
beginning of the first header block, and is signaled as SETTINGS
acknowledgement.  This commit checks these conditions.  If dynamic
table size update appears other than the beginning of the first header
block, it is treated as error.  If SETTINGS ACK is received, and next
HEADERS header block does not have dynamic table size update, it is
treated as error.
2015-07-22 00:11:23 +09:00
Tatsuhiro Tsujikawa 693fba3b64 Add more docs about NGHTTP2_ERR_DATA_EXIST and its condition
This commit documents NGHTTP2_ERR_DATA_EXIST also occurs if HEADERS
has been already attached to stream too.  This commit also fixes
possible assertion error, and now nghttp2_submit_headers() and
nghttp2_submit_response() may return NGHTTP2_ERR_DATA_EXIST.  But we
recommend to use nghttp2_submit_request() and
nghttp2_submit_response(), and using them will avoid this error.
2015-07-08 00:35:07 +09:00
Tatsuhiro Tsujikawa 3973d9ce12 Fix typo 2015-07-04 16:02:28 +09:00
Tatsuhiro Tsujikawa 1f7e6ea3fe Define NGHTTP2_EXTERN to __declspec(dllimport) when using nghttp2
The private global variable nghttp2_enable_strict_preface is also
marked as NGHTTP2_EXTERN, but it is test purpose only (test with
.dll), and not part of public API.  It could be removed in the future
release.
2015-05-28 22:36:43 +09:00
Tatsuhiro Tsujikawa 1ddff5bbf9 Include stdint.h instead of inttypes.h when compiled with MSVC < 2013 2015-05-20 22:33:57 +09:00
Tatsuhiro Tsujikawa 3a4c8bc8f1 Document about small write 2015-05-19 22:56:23 +09:00
Tatsuhiro Tsujikawa 0b27f005e0 Merge branch 'master' into v1.0.0
Conflicts:
	src/HttpServer.cc
2015-05-15 23:24:19 +09:00
Tatsuhiro Tsujikawa 53bfc70c9e Include inttypes.h (or cintypes for C++) instead of stdint.h
From autoconf manual, section 5.6.1 Portability of Headers, says:

"""
The C99 standard says that inttypes.h includes stdint.h, so there's no
need to include stdint.h separately in a standard environment. Some
implementations have inttypes.h but not stdint.h (e.g., Solaris 7),
but we don't know of any implementation that has stdint.h but not
inttypes.h.
"""
2015-05-14 00:17:45 +09:00
Tatsuhiro Tsujikawa e63d6e490a Merge branch 'master' into v1.0.0
Conflicts:
	lib/nghttp2_option.h
	lib/nghttp2_session.h
	src/HttpServer.cc
2015-05-08 19:21:51 +09:00
Tatsuhiro Tsujikawa 73e79130d1 Update doc 2015-05-07 21:14:21 +09:00
Tatsuhiro Tsujikawa f9a50333d2 Fix doc for nghttp2_select_next_protocol
We have to return this error code to notify OpenSSL that we have not
filled any values in |*out| and |*outlen|.
2015-04-28 23:12:27 +09:00
Tatsuhiro Tsujikawa 1c4df1832b Update doc, mainly for RFC numbers 2015-04-28 23:05:00 +09:00
Tatsuhiro Tsujikawa db4a68454a Merge branch 'master' into v1.0.0
Conflicts:
	lib/includes/nghttp2/nghttp2.h
2015-04-24 00:13:15 +09:00
Tatsuhiro Tsujikawa 6b0b8ea7d5 Update doc 2015-04-24 00:05:10 +09:00
Tatsuhiro Tsujikawa 514558afc0 Allow NGHTTP2_ERR_TEMPORAL_CALLBACK_FAILURE from nghttp2_on_begin_headers_callback
Since application most likely allocates the stream object in
nghttp2_on_begin_headers_callback, it is desirable to handle its
failure as stream error.  But previously it only signals success or
fatal error.  Submitting RST_STREAM does not prevent
nghttp2_on_header_callback from being invoked.  This commit improves
this situation by allowing NGHTTP2_ERR_TEMPORAL_CALLBACK_FAILURE from
nghttp2_on_begin_headers_callback.  If that value is returned, library
submits RST_STREAM with error code INTERNAL_ERROR, and
nghttp2_on_header_callback and nghttp2_on_frame_recv_callback for that
frame are not invoked.  Note that for PUSH_PROMISE frame, the stream
to be reset is promised stream.
2015-04-23 23:43:30 +09:00
Tatsuhiro Tsujikawa b9f602b9a2 Update doc 2015-04-23 21:14:09 +09:00
Tatsuhiro Tsujikawa 5937b4b6f7 Merge branch 'master' into v1.0.0 2015-04-19 23:13:38 +09:00
Tatsuhiro Tsujikawa 7323d4c639 Fix bug that nghttp2_session_set_next_stream_id accepts invalid stream_id 2015-04-17 00:12:47 +09:00
Tatsuhiro Tsujikawa cf0576253f Merge branch 'master' into v1.0.0 2015-04-08 18:10:04 +09:00
Tatsuhiro Tsujikawa d56ecd7414 Add nghttp2_session_consume_{connection,stream} to consume bytes independently
The existing nghttp2_session_consume() affects both connection and
stream level flow control windows.  The new functions only affects
either connection or stream.  There is some interesting use cases.
For example, we may want to pause a stream by not sending
WINDOW_UPDATE, meanwhile we want to continue to process other streams.
In this case, we use nghttp2_session_consume_connection() to tell
library that only connection level window is recovered.  The relevant
discussion: https://code.google.com/p/chromium/issues/detail?id=473259
2015-04-07 00:14:18 +09:00
Tatsuhiro Tsujikawa ef4e39be55 Update doc 2015-04-06 23:57:48 +09:00
Tatsuhiro Tsujikawa 3e50ef439d Announce h2, final HTTP/2 ALPN identifier 2015-04-05 23:15:20 +09:00
Tatsuhiro Tsujikawa d0c27d5229 Send 24 bytes client magic byte string by library
Previously nghttp2_session_send() and nghttp2_session_mem_send() did
not send 24 bytes client magic byte string (MAGIC).  We made
nghttp2_session_recv() and nghttp2_session_mem_recv() process MAGIC by
default, so it is natural to make library send MAGIC as well.  This
commit makes nghttp2_session_send() and nghttp2_session_mem_send()
send MAGIC.  This commit also replace "connection preface" with
"client magic", since we call MAGIC as "connection preface" but it is
just a part of connection preface.  NGHTTP2_CLIENT_CONNECTION_PREFACE
macro was replaced with NGHTTP2_CLIENT_MAGIC.  The already deprecated
NGHTTP2_CLIENT_CONNECTION_HEADER macro was removed permanently.
nghttp2_option_set_no_recv_client_preface() was renamed as
nghttp2_option_set_no_recv_client_magic().  NGHTTP2_ERR_BAD_PREFACE
was renamed as NGHTTP2_ERR_BAD_CLIENT_MAGIC.
2015-04-05 23:15:20 +09:00
Tatsuhiro Tsujikawa ebf214c8fc nghttp2_on_invalid_frame_recv_callback should have lib_error_code as param
nghttp2_error_code is HTTP/2 standard error code and is too coarse to
know what's going on.
2015-04-05 23:15:20 +09:00
Tatsuhiro Tsujikawa 250ea53e4b Deal with 24 bytes client connection preface by default
Since HTTP/2 spec requires for client to send connection preface, it
is reasonable to make this option enabled by default.  It is still a
use case to disable this, so replace this option with
nghttp2_option_set_no_recv_client_preface().
2015-04-05 23:15:20 +09:00
Tatsuhiro Tsujikawa 01af6ea70c Remove ALTSVC related code
HTTP/2 and HPACK are going to be published as RFC, but ALTSVC is still
in draft state.  To make our API stable, it would be better to remove
ALTSVC API for 1.0.0 release.
2015-04-05 23:15:20 +09:00
Tatsuhiro Tsujikawa 9eff511c5e Add nghttp2_send_data_callback to send DATA payload without copying
To avoid buffer copy in nghttp2_data_source_read_callback, this commit
introduces NGHTTP2_DATA_FLAG_NO_COPY and nghttp2_send_data_callback.
By using NGHTTP2_DATA_FLAG_NO_COPY in
nghttp2_data_source_read_callback, application can avoid to copy
application data to given buffer.  Instead, application has to
implement nghttp2_send_data_callback to send complete DATA frame by
itself.  We see noticeable performance increase in nghttpd and
tiny-nghttpd using this new feature.  On the other hand, nghttpx does
not show such difference, probably because buffer copy is not
bottleneck.  Using nghttp2_send_data_callback adds complexity, so it
is recommended to measure the performance to see whether this extra
complexity worth it.
2015-04-04 21:23:50 +09:00
Tatsuhiro Tsujikawa 2c05b8d6f0 Update doc 2015-04-01 01:26:21 +09:00
Tatsuhiro Tsujikawa 87029e05af doc: Split API reference into smaller fine grained files
Previously API reference is gigantic one rst file and it is a bit hard
to use, especially when browsing similar functions.  This commit
splits API reference into smaller fine grained files.  The macros,
enums, types are now in its own file.  Each API function has its own
file now.  API reference doc is now index to above documentation
files.  The apiref-header.rst is renamed as programmers-guide.rst and
becomes standalone document.
2015-04-01 01:13:10 +09:00
Tatsuhiro Tsujikawa 67b0e0c2d6 Fix "redefine WIN32" bug 2015-03-28 02:16:37 +09:00
Tatsuhiro Tsujikawa 966e3a1308 Define NGHTTP2_EXTERN macro to export function for Windows build 2015-03-28 01:58:59 +09:00
Tatsuhiro Tsujikawa 661fb2eb0e NULL-terminate name and value in nghttp2_nv
Guaranteeing NULL-termination is very useful when name or value are
used with C functions which requires NULL-terminated string.
2015-03-23 23:25:57 +09:00
Tatsuhiro Tsujikawa d4eb2b2c75 Update doc 2015-03-14 17:59:30 +09:00
Daniel Stenberg d287ea986f nghttp2.h: remove trailing comma last in enum
... since gcc -pedantic warns on it.
2015-03-13 09:05:30 +01:00
Tatsuhiro Tsujikawa dd9e829ee1 Document NGHTTP2_DATA_FLAG_NO_END_STREAM in nghttp2_data_source_read_callback 2015-03-07 17:59:58 +09:00
Tatsuhiro Tsujikawa 2f2a535113 Add a way to send trailer with nghttp2_submit_request/nghttp2_submit_response
nghttp2_submit_request and nghttp2_submit_response will set
NGHTTP2_FLAG_END_STREAM after all given data is sent (data could be
0).  This means we have no way to send trailers.  In this commit, we
added NGHTTP2_DATA_FLAG_NO_END_STREAM flag.  The application can set
this flag in *data_flags inside nghttp2_data_source_read_callback.  If
NGHTTP2_DATA_FLAG_EOF is set, library automatically set
NGHTTP2_FLAG_END_STREAM.  But if both NGHTTP2_DATA_FLAG_EOF and
NGHTTP2_DATA_FLAG_NO_END_STREAM are set, NGHTTP2_FLAG_END_STREAM will
not set by library.  Then application can use new
nghttp2_submit_trailer() to send trailers.  nghttp2_submit_trailer()
will set NGHTTP2_FLAG_END_STREAM and it is actually thing wrapper of
nghttp2_submit_headers().
2015-03-07 17:09:29 +09:00
Tatsuhiro Tsujikawa 05b8901d69 Call on_invalid_frame_recv_callback on bad HTTP messaging 2015-02-26 22:59:07 +09:00
Tatsuhiro Tsujikawa 20a689ef44 Update doc 2015-02-21 16:53:41 +09:00
Tatsuhiro Tsujikawa 2fc1dd77d2 Update doc 2015-02-20 23:30:57 +09:00
Tatsuhiro Tsujikawa e45c523dc7 Add nghttp2_option_set_no_http_messaging() API function
This API function with nonzero |val| parameter disables HTTP Messaging
validation in nghttp2 library, so that application can use nghttp2
library for non-HTTP use.
2015-02-20 23:26:56 +09:00
Tatsuhiro Tsujikawa a473641e3f Update doc 2015-02-12 23:54:38 +09:00
Tatsuhiro Tsujikawa eb94603c51 Make nghttp2_session_get_stream_user_data work inside nghttp2_on_frame_not_send_callback 2015-02-12 22:41:57 +09:00
Tatsuhiro Tsujikawa 33879219ff Refactor ALPN/NPN protocol selection and introduce NGHTTP2_PROTO_ALPN macro 2015-02-06 22:35:30 +09:00
Tatsuhiro Tsujikawa b685747643 Add nghttp2_submit_shutdown_notice() to start graceful shutdown
nghttp2_submit_shutdown_notice() is used to notify the client that
graceful shutdown is started.  We expect that after this call, the
server application should send another GOAWAY using
nghttp2_submit_goaway() with appropriate last_stream_id.  In this
commit, we also added nghttp2_session_get_last_proc_stream_id(), which
can be used as last_stream_id parameter.

This commit implements graceful shutdown in nghttpx.  The integration
test for graceful shutdown is also added.
2015-01-22 23:21:58 +09:00
Tatsuhiro Tsujikawa 06a8d684a6 Fixed typo 2015-01-16 22:29:22 +09:00
Tatsuhiro Tsujikawa b0078a2379 Suppress to send frames other than GOAWAY if NGHTTP2_GOAWAY_TERM_ON_SEND is set
This change makes sure that GOAWAY which terminates session is
immediately sent without blocked by other frames.
NGHTTP2_ERR_SESSION_CLOSING library error code was added to indicate
this situation to callback.
2015-01-15 22:32:29 +09:00
Tatsuhiro Tsujikawa e60183313b Document that calling nghttp2_submit_response to same stream twice is bad idea 2014-12-20 21:53:33 +09:00
Tatsuhiro Tsujikawa 4bc9f2422b Add nghttp2_mem example 2014-12-16 23:21:50 +09:00
Tatsuhiro Tsujikawa ee158fb0aa Add nghttp2_session_{set,get}_next_stream_id API function 2014-12-13 01:18:15 +09:00
Tatsuhiro Tsujikawa c0ffed7788 Support custom memory allocator
nghttp2_mem structure is introduced to hold custom memory allocator
functions and user supplied pointer.  nghttp2_mem object can be passed
to nghttp2_session_client_new3(), nghttp2_session_server_new3(),
nghttp2_hd_deflate_new2() and nghttp2_hd_inflate_new2() to replace
standard malloc(), free(), calloc() and realloc().  nghttp2_mem
structure has user supplied pointer mem_user_data which can be used as
per session/object memory pool.
2014-12-08 00:55:55 +09:00
Tatsuhiro Tsujikawa 21b48d24e4 Remove altsvc 2014-12-07 23:11:54 +09:00
Tatsuhiro Tsujikawa d23105ccb7 Add note about pseudo header ordering validation in on_header_callback 2014-11-30 21:30:48 +09:00
Tatsuhiro Tsujikawa d75ba74bbd Return error if invalid stream_id is given to nghttp2_submit_push_promise 2014-11-29 16:17:02 +09:00
Tatsuhiro Tsujikawa 9ff1925538 Robust GOAWAY handling
This change will utilize last_stream_id in GOAWAY extensively.  When
GOAWAY is received with a last_stream_id, library closes all outgoing
streams whose stream_id > received last_stream_id.
nghttp2_on_stream_callback is called for each stream to be closed.

When GOAWAY is sent with a last_stream_id, library closes all incoming
streams whose stream_id > sent last_stream_id.
nghttp2_on_stream_callback is called for each stream to be closed.
2014-11-29 16:02:13 +09:00
Tatsuhiro Tsujikawa b1f807abd1 Reformat lines with clang-format-3.5 2014-11-27 23:56:30 +09:00
Tatsuhiro Tsujikawa 4d93dd9d91 Upate to draft-15
* Add NGHTTP2_HTTP_1_1_REQUIRED error code
* Allow transmission of WINDOW_UPDATE on reserved (remote)
* Allow reception of WINDOW_UPDATE on reserved (local)
* Treat frame larger than MAX_FRAME_SIZE as FRAME_SIZE_ERROR

ALPN identifier is still h2-14 to continue interop, since draft-14 and
-15 are binary compatible.  The new error code was added in draft-15,
but HTTP/2 allows extensions can freely add new error code, so it is
not a problem.
2014-10-30 22:40:02 +09:00
Tatsuhiro Tsujikawa f3a76d84f1 Document that only one data is allowed for one stream at a time 2014-10-06 23:47:43 +09:00
Tatsuhiro Tsujikawa 1d138accb9 Unify DATA and other frames in nghttp2_outbound_item and save malloc() 2014-10-03 21:31:37 +09:00
Tatsuhiro Tsujikawa be0f6dcaaf Clear 2 types of stream deferred flag indenpendently
Previously when nghttp2_stream_resume_deferred_data() is called,
deferred flags in stream->flags are all cleared.  This is not ideal
because if application returned NGHTTP2_ERR_DEFERRED, and also that
stream is deferred by flow control, then all flags are cleared and
read callback will be invoked again.  This commit fixes this issue.
This changes error condition of nghttp2_session_resume_data().
Previously we return error if stream was deferred by flow control.
Now we don't return error in this case.  We just clear
NGHTTP2_FLAG_DEFERRED_USER and if still
NGHTTP2_FLAG_DEFERRED_FLOW_CONTROL is set, just return 0.
2014-09-26 21:32:17 +09:00
Tatsuhiro Tsujikawa 901de5fbce Add nghttp2_option_set_recv_client_preface()
By default, nghttp2 library only handles HTTP/2 frames and does not
recognize first 24 bytes of client connection preface. This design
choice is done due to the fact that server may want to detect the
application protocol based on first few bytes on clear text
communication. But for simple servers which only speak HTTP/2, it is
easier for developers if nghttp2 library takes care of client
connection preface.

If this option is used with nonzero val, nghttp2 library checks first
24 bytes client connection preface. If it is not a valid one,
nghttp2_session_recv() and nghttp2_session_mem_recv() will return
error NGHTTP2_ERR_BAD_PREFACE, which is fatal error.
2014-09-13 19:50:44 +09:00
Tatsuhiro Tsujikawa b4bb6a6101 Add reserved bits to header and frames
Currently reserved bit is always set to 0.  The addition of reserved
bit is for future extension.
2014-08-28 23:30:42 +09:00
Tatsuhiro Tsujikawa 0b1ab90fb8 Move frame_type parameter in front of stream_id
This commit moves frame_type parameter of
nghttp2_data_soruce_read_length_callback in front of stream_id
parameter.  The motivation is that other callback is generally put
frame related parameters first.  To make it consistent, we move
frame_type, which is frame ralted parameter, to the left.
2014-08-25 22:31:11 +09:00
Tatsuhiro Tsujikawa 82bc7198e6 Change nghttp2_session_get_stream_remote_window_size behavior
Now it returns only stream's available remote window size, without
considering connection level window size.  For connection-level window
size, nghttp2_session_get_remote_window_size() is added by this
commit.  To get old behavior of
nghttp2_session_get_stream_remote_window_size() is use
min(nghttp2_session_get_stream_remote_window_size(),
nghttp2_session_get_remote_window_size()).  The reason of this change
is that it is desirable to know just stream level window size without
taking into connection level window size.  This is useful for
debugging purpose.
2014-08-25 21:44:22 +09:00
Tatsuhiro Tsujikawa 03ed29953e Move nghttp2_data_source_read_length_callback to session callbacks section
Also edited its documentation to make hyperlink works.
2014-08-25 21:38:08 +09:00
Tatsuhiro Tsujikawa a36c4c6f5f Add nghttp2_on_begin_frame_callback
nghttp2_on_begin_frame_callback will be invoked when a frame header is
received.
2014-08-25 21:26:50 +09:00
Tatsuhiro Tsujikawa 53ee21caa9 Remove nghttp2_on_unknown_frame_recv_callback
It is not used by library for a while.  It could be used to pass
unsupported extension frames to application, but its interface
requires library to buffer entire frame, which we'd like to avoid.
For unsupported extension frames, we will add new callbacks which does
not require buffering if they are required.
2014-08-25 21:24:04 +09:00
Tatsuhiro Tsujikawa 31528b6267 Use uint32_t for HTTP/2 error_code
h2-14 now allows extensions to define new error codes.  To allow
application callback to access such error codes, we uses uint32_t as
error_code type for structs and function parameters.  Previously we
treated unknown error code as INTERNAL_ERROR, but this change removes
this and unknown error code is passed to application callback as is.
2014-08-25 21:24:04 +09:00
Tatsuhiro Tsujikawa ab5b81bee1 Hide nghttp2_session_callbacks details and provide setter like functions
To make it possible to add new callbacks without bumping so name, we
decided to hide details of nghttp2_session_callbacks.  We provide
setter like functions to set individual callback function.
2014-08-25 21:24:04 +09:00
Scott Mitchell 3cd08251ca Send window size API extension
Motivation:

The send window size is currently fixed by a macro at compile time.
In order for users of the library to impact the send window size they
would have to change a macro at compile time. The window size may be dynamic
depending on the environment and deployment scheme. The library users
currently have no way to change this parameter.

Modifications:

Add a new optional callback method which is called before data is sent to
obtain the desired send window size. The callback return value will be
subject to a range check for the current session, stream, and settings
limits defined by flow control.

Result:
Library users have control over their send sizes.
2014-08-24 11:32:44 -04:00
Tatsuhiro Tsujikawa 00ead22395 Don't allow frame submission for pending new frame
This is partial revert of bbe4f5a3d1.
Only documentation is reverted.  Since we have 2 queues to handle
maximum concurrent streams, we are not ready to allow immediate frame
submission for pending new frames.
2014-08-17 21:26:56 +09:00
Tatsuhiro Tsujikawa bbe4f5a3d1 Allow frame submission immediately after nghttp2_submit_{request,headers,pp}
This commit makes handling of outgoing HEADERS and PUSH_PROMISE in the
same priority of other frames on the stream, so these frames are
processed in the order they are submitted.  This allows application to
submit frames to a stream returned by nghttp2_submit_{request,
headers, push_promise} immediately.  The only exception is
WINDOW_UPDATA frame, which requires nghttp2_stream object, which is
not created yet.
2014-08-17 17:31:43 +09:00
Tatsuhiro Tsujikawa 894783f572 Add note how to specify error code on NGHTTP2_ERR_TEMPORAL_CALLBACK_FAILURE 2014-08-10 00:18:41 +09:00
Tatsuhiro Tsujikawa ab9b0538bc Add doc how to issue non-final response headers 2014-08-08 23:38:20 +09:00
Tatsuhiro Tsujikawa 24edd2972d Remove note about 0x00 concatenation rule and add note about pseudo-headers 2014-08-08 23:32:45 +09:00
Tatsuhiro Tsujikawa 2fb750f2e3 nghttp2_check_header_value: Disallow 0x00 2014-08-02 00:30:09 +09:00
Tatsuhiro Tsujikawa 7952029752 Advertise h2-14 2014-07-31 23:34:54 +09:00
Tatsuhiro Tsujikawa 48734b6d05 Update doc 2014-07-31 23:18:39 +09:00
Tatsuhiro Tsujikawa b8a2bf2675 Remove END_SEGMENT flag 2014-07-31 23:05:53 +09:00
Tatsuhiro Tsujikawa 742b28833a Rename NGHTTP2_SETTINGS_MAX_HEADER_SET_SIZE as NGHTTP2_SETTINGS_MAX_HEADER_LIST_SIZE 2014-07-31 23:05:53 +09:00
Tatsuhiro Tsujikawa 77374ac6e2 Implement SETTINGS_MAX_FRAME_SIZE and SETTINGS_MAX_HEADER_LIST_SIZE 2014-07-31 23:05:53 +09:00
Tatsuhiro Tsujikawa 079db14d45 Add nghttp2_session_consume() API
Reworked no automatic WINDOW_UPDATE feature.  We added new API
nghttp2_session_consume() which tells the library how many bytes are
consumed by the application.  Instead of submitting WINDOW_UPDATE by
the application, the library is now responsible to submit
WINDOW_UPDATE based on consumed bytes.  This is more reliable method,
since it enables us to properly send WINDOW_UPDATE for stream and
connection individually.  The previous implementation of nghttpx had
broken connection window management.
2014-07-31 23:05:53 +09:00
Tatsuhiro Tsujikawa e904842504 Update doc 2014-07-31 23:05:52 +09:00
Tatsuhiro Tsujikawa 38bfbffb1b Remove HPACK reference set 2014-07-31 23:05:52 +09:00
Tatsuhiro Tsujikawa 5c305acb97 Remove unused nghttp2_io_flag 2014-07-17 23:44:03 +09:00
Tatsuhiro Tsujikawa 55c697e9f4 Handle multiple SETTINGS_HEADER_TABLE_SIZE in incoming SETTINGS frame
Previously we just assumed that if same settings ID is found in
SETTINGS, it is enough to process last seen entry.  But it turns out
it is not enough for SETTINGS_HEADER_TABLE_SIZE.  If we have 0 and
4096 for SETTINGS_HEADER_TABLE_SIZE in one SETTINGS, we must first
shrink dynamic table to 0 and then enlarge it to 4096.  This means
that we have to remember the minimum value and last value.
2014-07-15 00:25:31 +09:00
Tatsuhiro Tsujikawa 4b6f124b7e Add API to check half-closed state for both direction of stream 2014-07-03 21:44:29 +09:00
Tatsuhiro Tsujikawa ed38dbf67a Add const qualifier to opaque_data parameter in nghttp2_submit_ping 2014-07-02 00:59:36 +09:00
Tatsuhiro Tsujikawa 1039dc59ea Update doc 2014-06-30 00:02:40 +09:00
Tatsuhiro Tsujikawa bd06f2cec3 Add const qualifier to nva parameter in nghttp2_hd_deflate_hd() 2014-06-29 23:43:14 +09:00
Tatsuhiro Tsujikawa 16fef227e8 nghttp2_hd_*_new: Leave *inflater_ptr or *deflater_ptr untouched on failure 2014-06-25 21:26:47 +09:00
Tatsuhiro Tsujikawa 55c338d7af nghttp2_session_*_new: Leave session parameter untouched on failure 2014-06-25 21:21:17 +09:00
Tatsuhiro Tsujikawa ad60a18fb9 Remove BLOCKED frame 2014-06-24 00:22:41 +09:00
Tatsuhiro Tsujikawa b78a51da0e Support graceful shutdown using multiple GOAWAY
Add last_stream_id parameter to nghttp2_submit_goaway().  To terminate
connection immediately with application chosen last stream ID,
nghttp2_session_terminate_session2() was added.
2014-06-18 11:35:08 +09:00
Tatsuhiro Tsujikawa 174e410b93 Use hex in nghttp2_error_code and nghttp2_settings_id 2014-06-18 10:48:31 +09:00
Tatsuhiro Tsujikawa a5af621947 Change protocol ID to h2-13 2014-06-18 09:42:51 +09:00
Tatsuhiro Tsujikawa dd006f8a79 Change protocol ID to h2-lc 2014-06-12 22:51:30 +09:00
Tatsuhiro Tsujikawa f0f5342cd4 Update doc 2014-06-11 01:40:20 +09:00
Tatsuhiro Tsujikawa 2878e1e258 Refactor storage of settings
Now local and remote settings values are stored in dedicated structure
nghttp2_settings_storage.
2014-06-10 21:29:19 +09:00
Tatsuhiro Tsujikawa dacc9b2f1c Separate extension frames from core frames
ALTSVC and BLOCKED frames are now extension frames.  To add new
extension frame without modifying nghttp2_frame union, which causes so
name bump, we separated extension frames from core frames.
nghttp2_frame includes generic nghttp2_extension.  The payload member
of nghttp2_extension will point to the structure of extension frame
payload.  The frame types of extension frames are defined in
nghttp2_ext_frame_type.
2014-06-09 23:16:54 +09:00
Tatsuhiro Tsujikawa 317b8baa4f Set HTTP/2 protocol id to h2-13 for now 2014-06-07 19:39:14 +09:00
Tatsuhiro Tsujikawa 19729962a3 Check stream_id is nonzero for DATA, HEADERS, PRIORITY, RST_STREAM, PUSH_PROMISE 2014-06-07 18:48:37 +09:00
Tatsuhiro Tsujikawa c46d3dafc6 Remove PAD_HIGH and Pad High field
CONTINUATION now doesn't have padding.
2014-06-07 18:15:36 +09:00
Tatsuhiro Tsujikawa 3db8935e20 Remove per-frame compression 2014-06-07 16:04:43 +09:00
Tatsuhiro Tsujikawa 99aaaccf03 Update doc 2014-06-02 22:33:23 +09:00
Tatsuhiro Tsujikawa 4f7223e89f Add note to manual how to submit frames to new stream ID 2014-05-31 22:01:18 +09:00
Tatsuhiro Tsujikawa 7b9a8acc22 Add HPACK deflation API 2014-05-13 23:42:55 +09:00
Tatsuhiro Tsujikawa ab76468971 Return NGHTTP2_ERR_BUFFER_ERROR from nghttp2_hd_{deflate,inflate}_hd
It is generally useful to know what is the cause of the error.  Since
we expose HPACK API, it is friendly to tell application the
insufficient buffer size is a culprit.
2014-05-12 22:58:04 +09:00
Tatsuhiro Tsujikawa bc6d952361 Check max SETTINGS_HEADER_TABLE_SIZE in nghttp2_iv_check()
Hide NGHTTP2_MAX_HEADER_TABLE_SIZE from public API.  Now it is defined
as ((1u << 31) - 1) in nghttp2_frame.h, which is sufficiently big
enough.
2014-05-12 21:28:49 +09:00
Tatsuhiro Tsujikawa 9683f88e6a Add NGHTTP2_DEFAULT_HEADER_TABLE_SIZE macro
Use this macro in Python sources.  Python module constant
HD_DEFLATE_HD_TABLE_BUFSIZE_MAX was renamed as
DEFLATE_MAX_HEADER_TABLE_SIZE since the previous name was awkward.
2014-05-11 21:38:30 +09:00
Tatsuhiro Tsujikawa dc791a641d Update doc 2014-05-10 21:43:16 +09:00
Tatsuhiro Tsujikawa d2890dfb91 Remove adjust_priority_callback
Since we have stream ID immediately available from nghttp2_submit_*,
we don't need adjust_priority_callback.
2014-05-07 23:43:45 +09:00
Tatsuhiro Tsujikawa e8de437d5c Return new stream ID from nghttp2_submit_{request, headers, push_promise}
Previously stream ID was assigned just before HEADERS or PUSH_PROMISE
was serialized and nghttp2_submit_{request, headers, push_promise} did
not return stream ID.  The application has to check assigned stream ID
using before_frame_send_callback.  Now it is apparent that priority is
meant to DATA transfer only.  Also application can reorder the
requests if it wants. Therefore we can assign stream ID in
nghttp2_submit_* functions and return stream ID from them.  With this
change, now application does not have to check stream ID using
before_frame_send_callback and its code will be simplified.
2014-05-07 23:24:07 +09:00
Tatsuhiro Tsujikawa 9228e223fa Remove NGHTTP2_ERR_GZIP error code 2014-05-06 23:42:57 +09:00
Tatsuhiro Tsujikawa 4f027c1562 libnghttp2: Remove dependency to zlib
We inherited gzip compression API from spdylay codebase.  In spdylay,
the cost of having such API is almost free because spdylay requires
zlib for header compression.  nghttp2 no longer uses gzip to header
compression.  zlib dependency exists just for gzip compression API,
which is not an essential.  So we decided to move gzip code to under
src and remove zlib dependency from libnghttp2 itself.  As nghttp2
package, we depend on zlib to compile tools under src.
2014-05-06 23:10:50 +09:00
Tatsuhiro Tsujikawa 704f362804 nghttp2.h: Use hex style flag definition 2014-05-06 18:49:24 +09:00
Tatsuhiro Tsujikawa 7b7b0ebcca Update doc 2014-05-06 18:08:41 +09:00
Tatsuhiro Tsujikawa 9125499dd0 src: Implement per-frame DATA compression
Currently, nghttpd server only compresses files whose extensions are
one of .html, .js, .css and .txt.  nghttp advertises its support of
per-frame compression in SETTINGS frame.  To implement this feature,
we added 2 public API: nghttp2_session_get_remote_settings() and
nghttp2_gzip_inflate_finished().
2014-05-03 00:02:17 +09:00
Tatsuhiro Tsujikawa 660c536275 Extend namelen and valuelen in nghttp2_nv to size_t 2014-04-30 23:08:34 +09:00
Tatsuhiro Tsujikawa d61208b394 Update doc 2014-04-30 10:49:19 +09:00
Tatsuhiro Tsujikawa 4cf023d94c Update doc 2014-04-30 10:28:50 +09:00
Tatsuhiro Tsujikawa 3b4aedd566 Add HPACK decoder public API 2014-04-29 15:53:46 +09:00
Tatsuhiro Tsujikawa 8c5db539b3 Change NGHTTP2_MAX_HEADER_TABLE_SIZE to 256MiB 2014-04-28 22:50:43 +09:00
Tatsuhiro Tsujikawa 6d5f402380 Add nghttp2_adjust_priority_callback
Callback function invoked to adjust priority value for request
HEADERS.

Since the application doesn’t know stream ID when it submits
requests, it may not be able to add correct priority value to HEADERS
frame and forced to use follwing PRIORITY frame. The purpose of this
callback is give the chance to the application to adjust priority
value with the latest information it has just before transmission so
that correct priority is included in HEADERS frame and it doesn’t
have to send additional PRIORITY frame.
2014-04-27 14:48:43 +09:00
Tatsuhiro Tsujikawa 59e42c1c69 Update doc 2014-04-25 01:39:40 +09:00
Tatsuhiro Tsujikawa d49733a5c9 Declare h2-12 for now 2014-04-25 01:33:29 +09:00
Tatsuhiro Tsujikawa 052be3296c Implement compressed DATA
The library interface supports compressed DATA.  The library does not
deflate nor inflate data payload.  When sending data, an application
has to compress data and set NGHTTP2_DATA_FLAG_COMPRESSED to
data_flags parameter in nghttp2_data_source_read_callback.  On
receiving, flags parameter in nghttp2_on_data_chunk_recv_callback
includes NGHTTP2_FLAG_COMPRESSED.  An application should check the
flags and inflate data as necessary.  Since compression context is per
frame, when DATA is seen in nghttp2_on_frame_recv_callback, an
application should reset compression context.
2014-04-25 01:27:18 +09:00
Tatsuhiro Tsujikawa 6bb410d603 Implement BLOCKED frame 2014-04-25 00:38:24 +09:00
Tatsuhiro Tsujikawa aa4d43f31e Allow exclusive dependency to stream 0 2014-04-17 21:18:18 +09:00
Tatsuhiro Tsujikawa ac86b51e37 Implement simplified dependency based priority 2014-04-15 22:55:07 +09:00
Tatsuhiro Tsujikawa 792938d410 Update doc 2014-04-09 00:16:04 +09:00
Tatsuhiro Tsujikawa 8f23c0c38b Name unnamed union in nghttp2_priority_spec so that we can be C90 compatible 2014-04-05 18:40:44 +09:00
Tatsuhiro Tsujikawa c1060f0d48 Announce h2-11 2014-04-05 18:26:48 +09:00
Tatsuhiro Tsujikawa e7ad3633c7 nghttp2_data_source_read_callback: Replace eof with uint32_t *data_flags
Replace int *eof with uint32_t *data_flags so that we can easily
extend functionality if we have to (but we don't do if possible).
2014-04-05 17:59:24 +09:00
Tatsuhiro Tsujikawa 124da7720f Fix compile error 2014-04-05 17:45:06 +09:00
Tatsuhiro Tsujikawa d668d2448b Hide session option from public API
To make adding new option easier, we decided to make the details of
option struct private and hide it from public API.  We provide
functions to set individual option value.
2014-04-04 21:57:47 +09:00
Tatsuhiro Tsujikawa 1e38ceb1cd Allow empty SETTINGS in upgrade 2014-04-04 20:23:46 +09:00
Tatsuhiro Tsujikawa 5d80d18f31 Cosmetic change 2014-04-03 16:06:03 +09:00
Tatsuhiro Tsujikawa 37e1626478 Update doc 2014-04-03 16:01:30 +09:00
Tatsuhiro Tsujikawa b1edb1f3ae Don't index name/value pair bearing NO_INDEX flag when forwarding it 2014-04-03 11:22:11 +09:00
Tatsuhiro Tsujikawa c53c1dc669 nghttp2_session_resume_data: Return error if no deferred data exist 2014-04-03 00:01:35 +09:00
Tatsuhiro Tsujikawa ef40879b5f Refactor nghttp2_stream
Combine deferred_data and data into data_item and merge deferred_flags
into flags.
2014-04-02 22:55:49 +09:00
Tatsuhiro Tsujikawa c9f90924a9 Add flags parameter to nghttp2_on_header_callback 2014-04-02 02:10:35 +09:00
Tatsuhiro Tsujikawa 24cb90806d Add flags to nghttp2_nv structure
This is preliminary change for upcoming HPACK updates.  The flags are
used to determine the name/value pair is indexable or not.
2014-04-01 23:17:50 +09:00
Tatsuhiro Tsujikawa da5db205ca Make group weight range [1, 256], inclusive
We do -+1 on serialization and deserialization since the field is 1
byte.  This change also parameterized range so that we can change it
easily.
2014-04-01 22:54:20 +09:00
Tatsuhiro Tsujikawa f5ead55f0e Check payload length when submitting GOAWAY and ALTSVC 2014-04-01 21:55:29 +09:00