Commit Graph

346 Commits

Author SHA1 Message Date
Stefan Eissing
af22c2a546
vtls: localization of state data in filters
- almost all backend calls pass the Curl_cfilter intance instead of
   connectdata+sockindex
 - ssl_connect_data is remove from struct connectdata and made internal
   to vtls
 - ssl_connect_data is allocated in the added filter, kept at cf->ctx

 - added function to let a ssl filter access its ssl_primary_config and
   ssl_config_data this selects the propert subfields in conn and data,
   for filters added as plain or proxy
 - adjusted all backends to use the changed api
 - adjusted all backends to access config data via the exposed
   functions, no longer using conn or data directly

cfilter renames for clear purpose:

 - methods `Curl_conn_*(data, conn, sockindex)` work on the complete
   filter chain at `sockindex` and connection `conn`.
 - methods `Curl_cf_*(cf, ...)` work on a specific Curl_cfilter
   instance.
 - methods `Curl_conn_cf()` work on/with filter instances at a
   connection.
 - rebased and resolved some naming conflicts
 - hostname validation (und session lookup) on SECONDARY use the same
   name as on FIRST (again).

new debug macros and removing connectdata from function signatures where not
needed.

adapting schannel for new Curl_read_plain paramter.

Closes #9919
2022-11-22 14:25:50 +01:00
Daniel Stenberg
3f039dfd6f
strcase: use curl_str(n)equal for case insensitive matches
No point in having two entry points for the same functions.

Also merged the *safe* function treatment into these so that they can
also be used when one or both pointers are NULL.

Closes #9837
2022-11-01 17:01:26 +01:00
Ayesh Karunaratne
4484270afc
misc: typo and grammar fixes
- Replace `Github` with `GitHub`.
- Replace `windows` with `Windows`
- Replace `advice` with `advise` where a verb is used.
- A few fixes on removing repeated words.
- Replace `a HTTP` with `an HTTP`

Closes #9802
2022-10-27 10:01:30 +02:00
Daniel Stenberg
664249d095
ws: initial websockets support
Closes #8995
2022-09-09 15:11:14 +02:00
Daniel Stenberg
eafc2b14ac
http2: make nghttp2 less picky about field whitespace
In nghttp2 1.49.0 it returns error on leading and trailing whitespace in
header fields according to language in the recently shipped RFC 9113.

nghttp2 1.50.0 introduces an option to switch off this strict check and
this change enables this option by default which should make curl behave
more similar to how it did with nghttp2 1.48.0 and earlier.

We might want to consider making this an option in the future.

Closes #9448
2022-09-08 14:52:45 +02:00
max.mehl
ad9bc5976d
copyright: make repository REUSE compliant
Add licensing and copyright information for all files in this repository. This
either happens in the file itself as a comment header or in the file
`.reuse/dep5`.

This commit also adds a Github workflow to check pull requests and adapts
copyright.pl to the changes.

Closes #8869
2022-06-13 09:13:00 +02:00
Daniel Stenberg
21ea13cfe1
http2: reject overly many push-promise headers
Getting more than a thousand of them is rather a sign of some kind of
attack.

Reported-by: Harry Sintonen
Bug: https://hackerone.com/reports/1589847
Closes #8962
2022-06-06 11:53:49 +02:00
steini2000
f9bc378ab7 http2: always debug print stream id in decimal with %u
Prior to this change the stream id shown could be hex or decimal which
was inconsistent and confusing.

Closes https://github.com/curl/curl/pull/8808
2022-05-12 01:31:32 -04:00
Daniel Stenberg
6968fb9d54
lib: remove exclamation marks
... from infof() and failf() calls. Make them less attention seeking.

Closes #8713
2022-04-16 11:55:05 +02:00
Daniel Stenberg
fda4b81635
http2: RST the stream if we stop it on our own will
For the "simulated 304" case the done-call isn't considered "premature"
but since the server didn't close the stream it needs to be reset to
stop delivering data.

Closes #8664
2022-04-01 13:23:04 +02:00
Daniel Stenberg
b5a9680577
http2: handle DONE called for the paused stream
As it could otherwise stall all streams on the connection

Reported-by: Evangelos Foutras
Fixes #8626
Closes #8664
2022-04-01 13:22:58 +02:00
Daniel Stenberg
d1e4a67734
header api: add curl_easy_header and curl_easy_nextheader
Add test 1940 to 1946 to verify.

Closes #8593
2022-03-22 08:24:22 +01:00
Daniel Stenberg
0694037032
http2: move two infof calls to debug-h2-only
and remove a superflous one

Ref: https://github.com/curl/curl/discussions/8498
Closes #8502
2022-02-24 11:00:12 +01:00
HenrikHolst
b807219292
misc: reduce strlen() calls with Curl_dyn_add()
Use STRCONST() to switch from Curl_dyn_add() to Curl_dyn_addn() for
string literals.

Closes #8398
2022-02-09 13:52:47 +01:00
Daniel Stenberg
2a1951519e
http2: fix the array copy to nghttp2_nv
Bug: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=44517
Follow-up to 9f985a11e7
Closes #8414
2022-02-09 12:18:50 +01:00
Daniel Stenberg
9f985a11e7
http2: use Curl_pseudo_headers 2022-02-07 13:56:06 +01:00
Daniel Stenberg
c85178a94c
http2: allow CURLOPT_HTTPHEADER change ":scheme"
The only h2 psuedo header that wasn't previously possible to change by a
user. This change also makes it impossible to send a HTTP/1 header that
starts with a colon, which I don't think anyone does anyway.

The other pseudo headers are possible to change indirectly by doing the
rightly crafted request.

Reported-by: siddharthchhabrap on github
Fixes #8381
Closes #8393
2022-02-07 13:55:57 +01:00
Daniel Stenberg
136f3e9d68
h2/h3: provide and refer to pseudo headers as defines
... and do sizeof() on the defines to use constants better.

Closes #8389
2022-02-05 11:08:43 +01:00
Daniel Stenberg
2610142139
lib: remove support for CURL_DOES_CONVERSIONS
TPF was the only user and support for that was dropped.

Closes #8378
2022-02-04 08:05:35 +01:00
Daniel Stenberg
b3f9c1aa09
http2:set_transfer_url() return early on OOM
If curl_url() returns NULL this should return early to avoid mistakes -
even if right now the subsequent function invokes are all OK.

Coverity (wrongly) pointed out this as a NULL deref.

Closes #8100
2021-12-06 14:32:29 +01:00
Daniel Stenberg
1fed8feaf1
http2: make getsock not wait for write if there's no remote window
While uploading, check for remote window availability in the getsock
function so that we don't wait for a writable socket if no data can be
sent.

Reported-by: Steini2000 on github
Fixes #7821
Closes #7839
2021-10-12 11:19:22 +02:00
Daniel Stenberg
901804ef95
Curl_http2_setup: don't change connection data on repeat invokes
Regression from 3cb8a74867 (releasde in 7.79.0). That change moved
transfer oriented inits to before the check but also erroneously moved a
few connection oriented ones, which causes problems.

Reported-by: Evangelos Foutras
Fixes #7730
Closes #7731
2021-09-16 11:23:55 +02:00
Daniel Stenberg
3cb8a74867
http2: Curl_http2_setup needs to init stream data in all invokes
Thus function was written to avoid doing multiple connection data
initializations, which is fine, but since it also initiates stream
related data it is crucial that it doesn't skip those even if called
again for the same connection. Solved by moving the stream
initializations before the "doing-it-again" check.

Reported-by: Inho Oh
Fixes #7630
Closes #7692
2021-09-11 23:01:23 +02:00
Daniel Stenberg
c364f5f6fa
Revert "http2: skip immediate parsing of payload following protocol switch"
This reverts commit 455a63c66f.

Reported-by: Tk Xiong
Fixes #7633
Closes #7648
2021-08-30 17:57:32 +02:00
Artur Sinila
ccffb6ec16
http2: revert call the handle-closed function correctly on closed stream
Reverts 252790c533

Assisted-by: Gergely Nagy
Fixes #7400
Closes #7525
2021-08-16 08:44:52 +02:00
Daniel Stenberg
e7416cfd2b
infof: remove newline from format strings, always append it
- the data needs to be "line-based" anyway since it's also passed to the
  debug callback/application

- it makes infof() work like failf() and consistency is good

- there's an assert that triggers on newlines in the format string

- Also removes a few instances of "..."

- Removes the code that would append "..." to the end of the data *iff*
  it was truncated in infof()

Closes #7357
2021-07-07 22:54:01 +02:00
Daniel Stenberg
63c7668182
version: turn version number functions into returning void
... as we never use the return codes from them.

Reviewed-by: Daniel Gustafsson
Closes #7319
2021-06-30 23:23:34 +02:00
Jay Satiro
c6cac5a96c http2: Clarify 'Using HTTP2' verbose message
- Change phrasing from multi-use to multiplexing since the former may
  not be as well understood.

Before: * Using HTTP2, server supports multi-use

After: * Using HTTP2, server supports multiplexing

Bug: https://github.com/curl/curl/discussions/7255
Reported-by: David Hu

Closes https://github.com/curl/curl/pull/7258
2021-06-15 03:18:45 -04:00
Shikha Sharma
a0709f9951
http2_connisdead: handle trailing GOAWAY better
When checking the connection the input processing returns error
immediately, we now consider that a dead connnection.

Bug: https://curl.se/mail/lib-2021-06/0001.html
Closes #7192
2021-06-05 23:45:31 +02:00
Daniel Stenberg
ef1a917a11
http2: init recvbuf struct for pushed streams
Debug builds would warn that these structs were not initialized properly
for pushed streams.

Ref: #7148
Closes #7153
2021-05-31 20:41:51 +02:00
Daniel Stenberg
0c55fbab45
conn: add 'attach' to protocol handler, make libssh2 use it
The libssh2 backend has SSH session associated with the connection but
the callback context is the easy handle, so when a connection gets
attached to a transfer, the protocol handler now allows for a custom
function to get used to set things up correctly.

Reported-by: Michael O'Farrell
Fixes #6898
Closes #7078
2021-05-17 17:57:50 +02:00
Daniel Stenberg
904b27d18d
http2: make sure pause is done on HTTP
Since the function is called for any protocol, we can't assume that the
HTTP struct is there without first making sure it is HTTP.

Reported-by: Denis Goleshchikhin
Fixes #7079
Closes #7080
2021-05-17 14:44:13 +02:00
Peng-Yu Chen
455a63c66f
http2: skip immediate parsing of payload following protocol switch
This is considered not harmful as a following http2_recv shall be
called very soon.

This is considered helpful in the specific situation where some
servers (e.g. nghttpx v1.43.0) may fulfill stream 1 immediately
following the return of HTTP status 101, other than waiting for
the client-side connection preface to arrive.

Fixes #7036
Closes #7040
2021-05-11 08:03:22 +02:00
Peng-Yu Chen
651a75e1e7
http2: use nghttp2_session_upgrade2 instead of nghttp2_session_upgrade
Following the upstream deprecation of nghttp2_session_upgrade.

Also provides further checks for requests with the HEAD method.

Closes #7041
2021-05-11 07:58:14 +02:00
Jay Satiro
ba0d3c28ca http2: fix potentially uninitialized variable
introduced several days ago in 3193170. caught by visual studio linker.
2021-05-05 03:16:06 -04:00
Kamil Dudka
3a6058cb97
http2: fix a resource leak in push_promise()
... detected by Coverity:

Error: RESOURCE_LEAK (CWE-772):
lib/http2.c:532: alloc_fn: Storage is returned from allocation function "duphandle".
lib/http2.c:532: var_assign: Assigning: "newhandle" = storage returned from "duphandle(data)".
lib/http2.c:552: noescape: Resource "newhandle" is not freed or pointed-to in "set_transfer_url".
lib/http2.c:555: leaked_storage: Variable "newhandle" going out of scope leaks the storage it points to.

Closes #6986
2021-05-01 23:40:14 +02:00
Kamil Dudka
3193170470
http2: fix resource leaks in set_transfer_url()
... detected by Coverity:

Error: RESOURCE_LEAK (CWE-772):
lib/http2.c:480: alloc_fn: Storage is returned from allocation function "curl_url". [Note: The source code implementation of the function has been overridden by a builtin model.]
lib/http2.c:480: var_assign: Assigning: "u" = storage returned from "curl_url()".
lib/http2.c:486: noescape: Resource "u" is not freed or pointed-to in "curl_url_set". [Note: The source code implementation of the function has been overridden by a builtin model.]
lib/http2.c:488: leaked_storage: Variable "u" going out of scope leaks the storage it points to.

Error: RESOURCE_LEAK (CWE-772):
lib/http2.c:480: alloc_fn: Storage is returned from allocation function "curl_url". [Note: The source code implementation of the function has been overridden by a builtin model.]
lib/http2.c:480: var_assign: Assigning: "u" = storage returned from "curl_url()".
lib/http2.c:493: noescape: Resource "u" is not freed or pointed-to in "curl_url_set". [Note: The source code implementation of the function has been overridden by a builtin model.]
lib/http2.c:495: leaked_storage: Variable "u" going out of scope leaks the storage it points to.

Error: RESOURCE_LEAK (CWE-772):
lib/http2.c:480: alloc_fn: Storage is returned from allocation function "curl_url". [Note: The source code implementation of the function has been overridden by a builtin model.]
lib/http2.c:480: var_assign: Assigning: "u" = storage returned from "curl_url()".
lib/http2.c:500: noescape: Resource "u" is not freed or pointed-to in "curl_url_set". [Note: The source code implementation of the function has been overridden by a builtin model.]
lib/http2.c:502: leaked_storage: Variable "u" going out of scope leaks the storage it points to.

Error: RESOURCE_LEAK (CWE-772):
lib/http2.c:480: alloc_fn: Storage is returned from allocation function "curl_url". [Note: The source code implementation of the function has been overridden by a builtin model.]
lib/http2.c:480: var_assign: Assigning: "u" = storage returned from "curl_url()".
lib/http2.c:505: noescape: Resource "u" is not freed or pointed-to in "curl_url_get". [Note: The source code implementation of the function has been overridden by a builtin model.]
lib/http2.c:507: leaked_storage: Variable "u" going out of scope leaks the storage it points to.

Closes #6986
2021-05-01 23:39:18 +02:00
Daniel Stenberg
063d3f3b96
tidy-up: make conditional checks more consistent
... remove '== NULL' and '!= 0'

Closes #6912
2021-04-22 09:10:17 +02:00
Daniel Stenberg
d8c4cdecb7
http2: remove DEBUG_HTTP2
Accidentally committed in 605e84235
2021-04-21 11:34:10 +02:00
Daniel Stenberg
605e842355
http2: move the stream error field to the per-transfer storage
Storing a stream error in the per-connection struct was an error that lead to
race conditions as subsequent stream handling could overwrite the error code
before it was used for the stream with the actual problem.

Closes #6910
2021-04-21 08:20:24 +02:00
Daniel Stenberg
252790c533
http2: call the handle-closed function correctly on closed stream
This was this one condition where the stream could be closed due to an
error and the function would still wrongly just return 0 for it.

Reported-by: Gergely Nagy
Fixes #6862
Closes #6910
2021-04-21 08:20:24 +02:00
Daniel Stenberg
95cbcec8f9
urldata: merge "struct DynamicStatic" into "struct UrlState"
Both were used for the same purposes and there was no logical separation
between them. Combined, this also saves 16 bytes in less holes in my
test build.

Closes #6798
2021-03-26 23:19:20 +01:00
Robert Ronto
068661bb02
http2: don't set KEEP_SEND when there's no more data to be sent
this should fix an issue where curl sometimes doesn't send out a request
with authorization info after a 401 is received over http2

Closes #6747
2021-03-15 23:29:35 +01:00
oxalica
d1f40078c1
http2: fail if connection terminated without END_STREAM
Closes #6736
2021-03-12 17:54:39 +01:00
Daniel Stenberg
723c0e75fa
http2: remove conn->data use
... but instead use a private alternative that points to the "driving
transfer" from the connection. We set the "user data" associated with
the connection to be the connectdata struct, but when we drive transfers
the code still needs to know the pointer to the transfer. We can change
the user data to become the Curl_easy handle, but with older nghttp2
version we cannot dynamically update that pointer properly when
different transfers are used over the same connection.

Closes #6520
2021-02-15 16:33:53 +01:00
Daniel Stenberg
1c3def53c7
urldata: remove duplicate 'upkeep_interval_ms' from connectdata
... and rely only on the value already set in Curl_easy.

Closes #6534
2021-01-27 09:19:08 +01:00
Daniel Stenberg
215db086e0
lib: pass in 'struct Curl_easy *' to most functions
... in most cases instead of 'struct connectdata *' but in some cases in
addition to.

- We mostly operate on transfers and not connections.

- We need the transfer handle to log, store data and more. Everything in
  libcurl is driven by a transfer (the CURL * in the public API).

- This work clarifies and separates the transfers from the connections
  better.

- We should avoid "conn->data". Since individual connections can be used
  by many transfers when multiplexing, making sure that conn->data
  points to the current and correct transfer at all times is difficult
  and has been notoriously error-prone over the years. The goal is to
  ultimately remove the conn->data pointer for this reason.

Closes #6425
2021-01-17 23:56:09 +01:00
Daniel Stenberg
aba01da639
failf: remove newline from formatting strings
... as failf adds one itself.

Also: add an assert() to failf() that triggers on a newline in the
format string!

Closes #6365
2020-12-25 23:42:16 +01:00
Daniel Stenberg
c7f95fa0cc
h2: do not wait for RECV on paused transfers
... as the socket might be readable all the time when paused and thus
causing a busy-loop.

Reported-by: Harry Sintonen
Reviewed-by: Jay Satiro
Fixes #6356
Closes #6357
2020-12-22 12:44:18 +01:00
Rikard Falkeborn
920f49a20b
infof/failf calls: fix format specifiers
Update a few format specifiers to match what is being printed.

Closes #6241
2020-11-24 13:18:41 +01:00