Commit Graph

3507 Commits (a363383a922f1e9cee7a849377881c29c0659b36)

Author SHA1 Message Date
Glenn Strauss 660d719a2a [multiple] code reuse chunkqueue_peek_data()
code reuse of chunkqueue_peek_data() and chunkqueue_read_data()
2020-10-11 12:19:27 -04:00
Glenn Strauss 29e66e70e2 [mod_magnet] magnet.attract-response-start-to

add option to run lua scripts in lighttpd response start hook

allows for response header manipulation

new params provide read-only access:

allows for content manipulation if the response body is complete

The HTTP response status can be accessed in lua via
lighty.env["response.http-status"] and should be checked, as
appropriate, prior to body manipulation.  The value is non-zero
in response start hook (magnet.attract-response-start-to), but is
likely to be 0 in scripts run from other lighttpd hooks earlier in
request processing,
e.g. magnet.attract-raw-url-to or magnet.attract-physical-path-to

Caller should check lighty.env["response.body-length"]
is a smaller and sane amount to read into memory and copy
a second time into lua data structures.  The value is lua nil
if the response body is not yet complete (or if it is >= 2GB-1)

Loading the response body (and all mod_magnet lua scripts) are
executed serially (blocking) in lighttpd, so its use is highly
discouraged on large files.  The body can be accessed in lua via
lighty.env["response.body"] if the response body is complete.
(recommended config option: = 0 (default)
 if mod_magnet scripts must process the response body)

Modifying HTTP response status and response body has not changed
and is achieved by setting lua script return value and modifying
the lighty.content lua table.

(note: mod_magnet, mod_setenv, mod_deflate, mod_expire have their
 response start hooks run in the order listed in server.modules)
2020-10-11 12:19:27 -04:00
Glenn Strauss 16a70b9253 [multiple] TLS modules use chunkqueue_peek_data() 2020-10-11 12:19:27 -04:00
Glenn Strauss 6c68e14940 [core] chunkqueue_{peek,read}_data(), squash
chunkqueue_peek_data(), chunkqueue_read_data(), chunkqueue_read_squash()
shared code for chunkqueue manipulation
2020-10-11 12:19:27 -04:00
Glenn Strauss 362be7b3bb [core] relay 1xx from backend over HTTP/1.1
relay 1xx from backend over HTTP/1.1, e.g. 103 Early Hints
(if client is connected using HTTP/1.1)

enabled by default unless disabled in lighttpd.conf with:
  server.feature-flags += ( "server.h1-discard-backend-1xx" = "enable" )

Warning: backends which send 103 Early Hints should check User-Agent
before doing so since naive clients might not handle unexpected 1xx.
Some clients may take the 1xx response as the final response, expecting
only one response.  Some clients might not properly handle 100 Continue
if the client did not send Expect: 100-continue with the request. Security Considerations

  An HTTP Status Code for Indicating Hints (103 Early Hints)
2020-10-11 12:19:27 -04:00
Glenn Strauss 869c778aa7 [core] relay 1xx from backend over HTTP/2
relay 1xx from backend over HTTP/2, e.g. 103 Early Hints
(if client is connected using HTTP/2)

enabled by default unless disabled in lighttpd.conf with:
  server.feature-flags += ( "server.h2-discard-backend-1xx" = "enable" )

Warning: backends which send 103 Early Hints should check User-Agent
before doing so since naive clients might not handle unexpected 1xx.
Some clients may take the 1xx response as the final response, expecting
only one response.  Some clients might not properly handle 100 Continue
if the client did not send Expect: 100-continue with the request. Security Considerations

  An HTTP Status Code for Indicating Hints (103 Early Hints)
2020-10-11 12:19:26 -04:00
Glenn Strauss 10d9d14633 [core] reload c after chunkqueue_compact_mem()
reload c = cq->first after calling chunkqueue_compact_mem()
2020-10-11 12:19:26 -04:00
Glenn Strauss edbfe36563 [core] support multiple 1xx responses from backend
support multiple 1xx intermediate responses from backends

Currently, all 1xx responses from backends are discarded.
In the future, these 1xx responses may be forwarded to the client
(when lighttpd also configured = 1 or = 2)
2020-10-11 12:19:26 -04:00
Glenn Strauss 7a3098398c [core] connection_check_expect_100()
isolate code to check for Expect: 100-continue
(separate out from code to read request body)
2020-10-11 12:19:26 -04:00
Glenn Strauss a330746f06 [TLS] error if inherit empty TLS cfg from globals
error if $SERVER["socket"] inherits empty TLS config from global scope
and ssl.engine = "enable" in the $SERVER["socket"]
2020-10-11 12:19:26 -04:00
Glenn Strauss 5ba175269a [core] skip ls-hpack decode work unused by lighttpd
define LSHPACK_DEC_CALC_HASH 0 to skip work whose results are not used
by lighttpd
2020-10-11 12:19:26 -04:00
Glenn Strauss 3fbb5773e9 [core] http_header_e <=> lshpack_static_hdr_idx
map enum http_header_e to enum lshpack_static_hdr_idx
map enum lshpack_static_hdr_idx to enum http_header_e
2020-10-11 12:19:26 -04:00
Glenn Strauss 367f30a645 [multiple] extend enum http_header_e list 2020-10-11 12:19:26 -04:00
Glenn Strauss 2e0676fd6d [core] extend (data_string *) to store header id
(optional addition to (data_string *), used by http_header.[ch])

extend (data_string *) instead of creating another data_* TYPE_*
  (new data type would probably have (data_string *) as base class)
  (might revisit choice in the future)

HTTP_HEADER_UNSPECIFIED has been removed.  It was used in select
locations as an optimization to avoid looking up enum header_header_e
before checking the array, but the ordering in the array now relies
on having the id.  Having the id allows for a quick check if a common
header is present or not in the htags bitmask, before checking the
array, and allows for integer comparison in the log(n) search of the
array, instead of strncasecmp().

With HTTP_HEADER_UNSPECIFIED removed, add optimization to set bit
in htags for HTTP_HEADER_OTHER when an "other" header is added,
but do not clear the bit, as there might be addtl "other" headers
2020-10-11 12:19:26 -04:00
Glenn Strauss 68ec5ad642 [core] array.[ch] using uint32_t instead of size_t 2020-10-11 12:19:26 -04:00
Glenn Strauss 92e5a021d2 [core] http_header_hkey_get_lc() for HTTP/2
header field-names are required to be lowercase for HTTP/2
so specialize http_header_hkey_get() as http_header_hkey_get_lc()
for simpler comparison

lowercase field-names in http_headers[], as it does not matter for
buffer_eq_icase_ssn(), which is used with http_headers[] for HTTP/1.x
2020-10-11 12:19:26 -04:00
Glenn Strauss babf0d0e4c [core] separate http_header_e from _htags bitmask
separate http_header_e index from r->{rqst,resp}_htags bitmask
(allows http_header_e remain 32-bit and to be used in array indexes
 while also allowing r->{rqst,resp}_htags to grow to 64-bits wide
 in the future, without requiring invasive changes)
2020-10-11 12:19:26 -04:00
Glenn Strauss 9c8981a7d1 [core] tst,set,clr macros for r->{rqst,resp}_htags 2020-10-11 12:19:26 -04:00
Glenn Strauss c58b95f297 [core] light_isupper(), light_islower()
more efficient char checks
(replace one comparision and one branch with one subtraction)
2020-10-11 12:19:26 -04:00
Glenn Strauss 327de98b38 [core] adjust response header prep for common case 2020-10-11 12:19:26 -04:00
Glenn Strauss c88d373507 [core] Content-Length in http_response_send_file() 2020-10-11 12:19:26 -04:00
Glenn Strauss c3a85c9bf5 [mod_wolfssl] standalone module
standalone module forked from mod_openssl
2020-10-11 12:19:26 -04:00
Glenn Strauss 1d9709b8ab [core] update HTTP status codes list from IANA 2020-10-11 12:19:26 -04:00
Glenn Strauss 38620b10bc [core] cold h2_log_response_header*() funcs 2020-10-11 12:19:26 -04:00
Glenn Strauss 97e314fc9e [multiple] inline chunkqueue_length() 2020-10-11 12:19:26 -04:00
Glenn Strauss 3a766d3d02 [mod_webdav] preserve bytes_out when chunks merged 2020-10-11 12:19:26 -04:00
Glenn Strauss 9f8a896891 [mod_ssi] update chunk after shell output redirect
chunkqueue_update_file() to update size of file chunk after
redirecting shell output to file fd
2020-10-11 12:19:26 -04:00
Glenn Strauss dbd458a0e6 [core] set r->state in h2.c
allow h2.c layer to modify r->state in addition to r->h2state

Do not retire/release r on error if trailers (as opposed to headers)
(stream r was just allocated in the same scope for headers,
 so ok to release)
2020-10-11 12:19:26 -04:00
Glenn Strauss 4474e6117f [core] log stream id with debug.log-state-handling
log stream id with debug.log-state-handling in

(id will be 0 for HTTP/2 connection, but not for streams on connection)
(id will be 0 for HTTP/1.x requests)
2020-10-11 12:19:26 -04:00
Glenn Strauss 05ff9c570e [core] combine Cookie request headers with ';'
(thx avij)

clients should send a single Cookie header with multiple cookie values
separated with ';'.

However, HTTP/2 loosens this requirement for Cookie.
  Section Compressing the Cookie Header Field
and some HTTP/2 clients (Chrome, Firefox) send multiple
'cookie:' headers in a HEADERS frame.
2020-10-11 12:19:26 -04:00
Glenn Strauss 37e04510c4 [build] add to hint listing reqd pkgs
add hint to listing packages required for build
  if ./ fails
2020-10-11 12:19:26 -04:00
Glenn Strauss 140c0fb8f4 [doc] update README and INSTALL
also add tests/README with some testing notes
2020-10-11 12:19:26 -04:00
Glenn Strauss c946b198a3 [core] code size: disable XXH64(), XXH3()
only XXH32() is used by ls-hpack, so disable XXH64() and XXH3()
to reduce code size.  (This maybe be changed in the future if
XXH64() or XXH3() are utilitized for their performance)
2020-10-11 12:19:26 -04:00
Glenn Strauss a7136aac8e [doc] refresh doc/config/*/* 2020-10-11 12:19:26 -04:00
Glenn Strauss f52a10545a [mod_openssl] clarify trace w/ deprecated options 2020-10-11 12:19:26 -04:00
Glenn Strauss f2e4e83a85 [mod_dirlisting] fix config parsing crash
(bug on master branch; never released)

(thx avij)

update doc that dir-listing.hide-dotfiles = "enable" by default
since lighttpd 1.4.40
2020-10-11 12:19:26 -04:00
Glenn Strauss 32d4569512 [core] xxhash no inline hints; let compiler choose 2020-10-11 12:19:26 -04:00
Glenn Strauss a25aeaa2f6 [build] remove ls-hpack/deps
xxHash is provided separately by lighttpd src/algo_xxhash.[ch]
2020-10-11 12:19:26 -04:00
Glenn Strauss 5ec59999dd [build] modify build, includes for xxHash v0.8.0 2020-10-11 12:19:26 -04:00
Glenn Strauss 85c1a1743e [core] import xxHash v0.8.0
import xxhash.[ch] as algo_xxhash.[ch]
tag: v0.8.0 94e5f23e736f2bb67ebdf90727353e65344f9fc0
2020-10-11 12:19:26 -04:00
Glenn Strauss 156e1da2ae [core] rename splaytree.[ch] to algo_splaytree.[ch] 2020-10-11 12:19:26 -04:00
Glenn Strauss 3ffb195532 [core] move djbhash(), dekhash() to algo_md.h 2020-10-11 12:19:26 -04:00
Glenn Strauss 6c8160e5a4 [core] rename md5.[ch] to algo_md5.[ch] 2020-10-11 12:19:26 -04:00
Glenn Strauss 044c8e80e5 [core] use djbhash in gw_backend to choose host
djbhash() is faster and more cache-friendly than is crc32c()
2020-10-11 12:19:26 -04:00
Glenn Strauss ceddd40ad6 [build] fix typo in option description for wolfSSL
(thx avij)
2020-10-11 12:19:26 -04:00
Glenn Strauss a3af9833c6 [core] fix crash on master if blank line request
(bug on master branch; never released)

(thx avij)

fix crash on master if blank line precedes HTTP/1.1 keep-alive request

header parsing code previously made assumptions that request was
HTTP/1.0 or HTTP/1.1, where a request-line was required, and which
would error out elsewhere if request-line was missing.  The parsing
code also previously looked for "\r\n\r\n" to end headers.

The header offset parsing code was modified and invalidated the above
assumptions, now looking only for blank line "\r\n", but the calling
code had not properly been updated.  (until this patch)
2020-10-11 12:19:26 -04:00
Glenn Strauss 5a694281da [core] ls-hpack optimizations
  lighttpd does not require HTTP/1.1 output compat from HPACK decoder
  ("field-name: value\r\n")

define NDEBUG (in ls-hpack/lshpack.c)
  lighttpd spends upwards of 20% total lighttpd CPU time in HPACK
  encode/decode in h2load test on static file over cleartext (not TLS)
  Defining NDEBUG eliminates some asserts() and results in a small
  but measurable reduction in CPU usage
2020-10-11 12:19:26 -04:00
Glenn Strauss 4656d91889 [core] document algorithm used in lighttpd etag
Donald E. Knuth
The Art Of Computer Programming Volume 3
Chapter 6.4, Topic: Sorting and Search
2020-10-11 12:19:26 -04:00
Glenn Strauss 2cdb862787 [scripts] enhancements
support validation from list of multiple signers

attempt to handle older (end-of-life) versions of OpenSSL

(thx avij)
2020-10-11 12:19:26 -04:00
Glenn Strauss 5547530a01 [core] do not require '\0' term for k,v hdr parse
no longer require '\0' terminated z-string for key,value header parsing
2020-10-11 12:19:26 -04:00