d113055899
nghttp2_hd: Use single buffer for an name/value pair
...
Previously we use 2 separate buffer for each name and value. The
problem is we would waste buffer space for name because it is usually
small. Also tuning buffer size for each buffer separately is not
elegant and current HTTP server practice is that one buffer for 1
name/value pair. This commit unifies 2 buffers into 1.
2014-05-28 23:33:37 +09:00
7b9a8acc22
Add HPACK deflation API
2014-05-13 23:42:55 +09:00
ab76468971
Return NGHTTP2_ERR_BUFFER_ERROR from nghttp2_hd_{deflate,inflate}_hd
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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
2e5c7f598f
Fix bug HPACK deflater does not send context update after table size change
2014-05-11 21:25:27 +09:00
3ebb3faf32
Remove nghttp2_ prefix from static function, part 2
2014-05-08 23:54:07 +09:00
855f39743a
Fix crash when indexed repr index=0
2014-05-01 09:06:54 +09:00
660c536275
Extend namelen and valuelen in nghttp2_nv to size_t
2014-04-30 23:08:34 +09:00
1b79114d2d
Fix compiler warnings
2014-04-30 22:16:21 +09:00
d2e64317ba
Code cleanup, include nghttp2_int.h explicitly to ensure debug macro
2014-04-30 22:08:32 +09:00
e00b8f1f73
Fix Dead Store (Dead assignement/Dead increment) warning found by Clang Analyzer
2014-04-30 22:06:42 +09:00
fe6b541233
Handle hd inflate buffer allocation failure
2014-04-30 11:32:05 +09:00
3b4aedd566
Add HPACK decoder public API
2014-04-29 15:53:46 +09:00
b1722cbe28
Update static table
2014-04-02 01:30:50 +09:00
7877b676e3
Honor NGHTTP2_NV_FLAG_NO_INDEX in deflater and inflater
2014-04-02 01:25:44 +09:00
24cb90806d
Add flags to nghttp2_nv structure
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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
ab2dc5967d
Replace HTTP/2.0 with HTTP/2
2014-03-30 19:26:37 +09:00
d0fbbe6932
Less cryptic debug message
2014-03-20 00:27:39 +09:00
142b433533
nghttp2_hd: Treat prematurely ended compressed header block as error properly
2014-03-14 00:52:44 +09:00
344d663e90
deflate_hd: Fix mishandled error return from emit_indexed_block
2014-03-14 00:25:03 +09:00
d07bb1ddff
Rework outbound frame buffers
2014-03-13 22:11:02 +09:00
3f56c938d8
nghttp2_hd: Use nghttp2_bufs, avoiding realloc()
2014-03-11 21:18:28 +09:00
358b4386d3
Introduce nghttp2_buf to ease buffer management
2014-03-11 01:47:38 +09:00
79c5032708
nghttp2_hd: Fix crash with multiple threads execution
2014-03-03 00:53:04 +09:00
1fee4fd2df
nghttp2_hd: Fail inflate immediately if ctx.bad is nonzero
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Doing inflation after error produces invalid results, especially, if
it is in NGHTTP2_HD_STATE_READ_INDEX, the inflater->left could be 0,
which causes assertion error. Add sanity assertion for index
2014-02-26 23:20:52 +09:00
18357512ed
nghttp2_hd: Fix integer decoding bug
2014-02-26 21:44:48 +09:00
fd88c6160d
HPACK post -05 updates
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* Use 1 Huffman code table for both request and response
* Remove complicated deflater side table size management
* Add encoding context update
* Fix memory leak in inflater
2014-02-13 23:22:52 +09:00
cacf4ecf26
Fix premature header block is not treated as connection error
2014-02-11 16:00:59 +09:00
9314e30987
Support transmission of CONTINUATION, change nghttp2_frame_hd
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The maximum frame size including header block is still limited
to NGHTTP2_HD_MAX_BUFFER_LENGTH, which is 32KB.
2014-01-26 23:10:33 +09:00
e7fc2951b8
nghttp2_hd: Define dedicated struct for HPACK deflater and inflater
2014-01-26 17:53:04 +09:00
8317559090
nghttp2_hd: Implement stream header inflater
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This stream inflater can inflate incoming header block in streaming
fashion. Currently, we buffer up single name/value pair, but we chose
far more smaller buffer size than HTTP/2 frame size.
2014-01-25 18:24:15 +09:00
201ab1a140
nghttp2_hd: Adjust maximum size to index based on table size
2014-01-21 21:49:53 +09:00
073e6d3a01
nghttp2_hd: Remove unused variables
2014-01-17 09:36:38 +09:00
0e4b3d435e
Emit header name/value pair using callback functions
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Now, in nghttp2_on_frame_recv_callback, nva and nvlen in
HEADERS and PUSH_PROMISE frames are always NULL and 0 respectively.
The header name/value pairs are emitted successive
nghttp2_on_header_callback functions. The end of header fields are
signaled with nghttp2_on_end_headers_callback function.
Since NGHTTP2_ERR_PAUSE for nghttp2_on_frame_recv_callback is
introduced to handle header block, it is now deprecated.
Instead, nghttp2_on_header_callback can be paused using
NGHTTP2_ERR_PAUSE.
2014-01-17 01:49:43 +09:00
63e7b21b35
nghttp2_hd: Fix lower bound search in static table
2014-01-08 21:32:39 +09:00
0fb4d32d6a
nghttp2_hd: Binary search static table
2014-01-07 23:41:09 +09:00
468d0fccd3
nghttp2_hd: Use hash to speed up name/value pair search
2014-01-07 22:43:34 +09:00
d703197a50
nghttp2_hd: Mitigate timing attack
2014-01-07 21:51:48 +09:00
9eb031ce83
nghttp2_hd: Avoid nghttp2_hd_huff_decode_count
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Huffman decoding is costly. It is faster to do geometric realloc
than calling nghttp2_hd_huff_decode_count to know the length in
advance.
2014-01-07 21:44:56 +09:00
4ac1652c70
nghttp2_hd: Remove invalid nghttp2_downcase call
2014-01-07 21:18:45 +09:00
dfcdea894b
Move header name/value pair validation to on_*_received functions
2013-12-25 23:38:55 +09:00
7c4dbb6ffc
nghttp2_hd: Don't malloc if huffman encoded string has 0 length
2013-12-19 23:19:14 +09:00
5ca0cfa018
nghttp2_hd: Search hd table once
2013-12-18 21:45:15 +09:00
01266182e9
nghttp2_hd: Match deflate_hd_tablelen to hd_table.len on decoder side
2013-12-17 21:39:21 +09:00
595493a0ec
Add debug output in nghttp2_hd
2013-12-16 23:54:20 +09:00
e61876ccbd
nghttp2_hd: Provide dedicated function to enable no reference set feature
2013-12-14 18:48:41 +09:00
e5e4fc9d14
nghttp2_hd: Define some headers not for indexing based on our research
2013-11-19 21:41:02 +09:00
8915e91b17
nghttp2_hd: Enlarge buffers used in inflation process dynamically
2013-11-16 23:13:46 +09:00
3d863ed254
nghttp2_hd: Clear reference set with index 0
2013-11-16 17:05:18 +09:00
94ec4dbe42
nghttpd_hd: Update static table and use 1-based index
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The specification now says that index to the header table entry is
1-based. Since 0-based index is very handy to access arrays, we
internally uses 0-based index. We just convert it to 1-based when
we emit to the block and convert 1-based to 0-based on decoding.
2013-11-16 16:18:44 +09:00
40347487c9
Don't sort headers in library code
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Remove sorting headers from library code. The application must sort
them if necessary. nghttpx and nghttpd do the sorting of the headers
in stable way if names are equal.
2013-11-13 23:56:02 +09:00
ac354d3b91
Fix compile error with --enable-maintainer-mode
2013-11-08 01:35:15 +09:00
2d08d30409
nghttp2_hd: Fix crash
2013-11-03 17:46:10 +09:00
b0f76773e1
nghttp2_hd: Use defalte_hd_table_bufsize for decoder as well
2013-10-31 01:51:16 +09:00
c8a9f8d312
nghttp2_hd: Fix crash on fail
2013-10-31 01:26:37 +09:00
6c99ff12c9
nghttp2_hd: Rename local as deflate
2013-10-29 00:42:08 +09:00
67ce60544e
Change maximum frame length to 16383
2013-10-27 21:17:09 +09:00
22df6f4190
nghttp2_hd: Fix bug on local_hd_table_bufsize_max > hd_table_bufsize_max
2013-10-26 23:30:48 +09:00
cbdd44c4ae
nghttp2_hd: Implement local header table size limit for encoder
2013-10-26 18:49:23 +09:00
abfc00983d
nghttp2_hd: Fix memory leak and bad free
2013-10-24 23:49:37 +09:00
0c3cb104e9
nghttp2_hd: Share static table globally
2013-10-24 22:09:40 +09:00
5a81e03497
nghttp2_hd: Add static table entry to dynamic table on emission
2013-10-24 21:52:02 +09:00
d5ccc89fc4
Update huffman table and static table
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Use huffman table in https://github.com/grmocg/httpbis-header-compression
2013-10-21 23:56:14 +09:00
9e50ae46d9
nghttp_hd: Use NGHTTP2_HD_SIDE_{REQUEST,RESPONSE} instead of {CLIENT,SERVER}
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This change conveys better notion about compression context.
2013-10-21 00:44:39 +09:00
8ef134a702
nghttp_hd: Refactor emit_indname_block and emit_newname_block
2013-10-21 00:22:14 +09:00
28aea5c6b7
nghttp_hd: Use huffman encoding only when it is usable
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We use huffman encoding only when its encoded length is strictly less
than the original length.
As noted in the HPACK draft, the length of name/value is now 7-bit
prefix and its MSB is 1 if the following string is huffman encoded.
2013-10-20 23:59:15 +09:00
a658f1367e
encode_length: Or-ing first byte with prefix mask
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So that we can preserve leading bits.
2013-10-20 16:28:52 +09:00
4e4fab01b1
Merge branch 'master' into hpack-exp
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Conflicts:
lib/nghttp2_hd.c
2013-10-18 20:06:36 +09:00
7b87d71121
nghttp2_hd: Fix missing return value handling
2013-10-18 19:48:15 +09:00
7bd145fd23
Fix out of bound array access in decode_length
2013-10-18 19:30:04 +09:00
f7389ff2e6
Revert 622b05aa31
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It turns out that 0-bit prefix is wrong, and the author now
clearly stated that the intention is 8-bit prefix for 8+ fields.
2013-10-18 19:28:01 +09:00
a2735ed025
Fix leak on failure
2013-10-16 00:12:33 +09:00
ed43635c7b
Updated latest initial static header table
2013-10-16 00:09:00 +09:00
50cdcca911
Implement static Huffman for header compression
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The current implementation uses Huffman code tables described
in http://tools.ietf.org/html/draft-rpeon-httpbis-header-compression-03
2013-10-15 23:55:12 +09:00
5b1fc35e82
Make max header table size configurable
2013-10-13 19:24:21 +09:00
6d7bcabe4c
Don't allocate name when indexing with name in static table
2013-10-12 22:56:29 +09:00
8cf3731802
Experiment HPACK with upcoming changes
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* remove substitution
* reversed insertion and removal from header table
* unified initial static table
2013-10-12 21:49:01 +09:00
622b05aa31
Fix HPACK using 0-bit prefix instead of 8-bits
2013-10-10 23:58:33 +09:00
3390c2356e
Update doc
2013-09-07 15:28:43 +09:00
4db8338012
Fix resource leak
2013-09-07 01:45:54 +09:00
4dcf9ad4f2
Make hd encoder ordering aware and one-pass
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The encoder algorithm is simplified and it now preserves ordering
of the headers. It also becomes one-pass encoder.
2013-09-06 21:53:28 +09:00
16076cbc2f
Increase NGHTTP2_HD_MAX_ENTRY_SIZE to 3072
2013-09-06 00:17:46 +09:00
1723912f35
Call nghttp2_hd_end_headers from nghttp2_hd_deflate_hd
2013-09-03 21:41:22 +09:00
83b0c89e3c
Handle indexing entry greater than header table limit without error
2013-08-28 23:16:23 +09:00
4fe056d208
nghttp2_hd.c: Use rv != 0 instead of rv < 0
2013-08-28 21:35:18 +09:00
f0ef6e980f
Refactor nghttp2_hd_inflate_hd
2013-08-28 21:33:57 +09:00
82b9f78fc7
Check incoming header field name strictly
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The validation rule is described in
http://tools.ietf.org/html/draft-ietf-httpbis-header-compression-02#section-4.1.2
2013-08-25 17:39:29 +09:00
091f38a99d
Revise common header processing
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Instead of emitting common headers on decoder side, encoder
now keeps track of removed common headers and encode it
as necessary.
2013-08-24 22:58:26 +09:00
005e60a5ed
Rework header compression
2013-08-23 23:38:28 +09:00
93e5b9e562
Fix bug common header disappear if it is evicted
2013-08-23 03:45:26 +09:00
346fafde3f
Implement draft-ietf-httpbis-header-compression-02
2013-08-23 03:33:05 +09:00
55b074e96e
Rename NGHTTP2_MAX_FRAME_SIZE as NGHTTP2_MAX_FRAME_LENGTH
2013-08-06 21:59:41 +09:00
7021a9fc5e
Incremental indexing only when the entry size if less than threshold
2013-07-27 20:48:04 +09:00
f74674aa7f
Fix header compression (again)
2013-07-27 19:23:05 +09:00
ddd04e8ced
Fix header compression bug, and perform always incremental indexing
2013-07-27 00:58:38 +09:00
e496800cb7
Fix header compression bug
2013-07-26 01:34:28 +09:00
321136b042
nghttp2_hd: Don't malloc if namelen/valuelen are zero
2013-07-23 23:10:53 +09:00
3c9e31da87
Don't substitute if same indexed header field name is already in working set
2013-07-23 02:52:08 +09:00
68afda92ac
Cleanup
2013-07-20 01:28:52 +09:00
b92b49f882
Cleanup
2013-07-20 01:27:26 +09:00
9c58004a86
Cleanup
2013-07-20 01:24:34 +09:00
Tatsuhiro Tsujikawa
Alexis La Goutte