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Commit Graph

819 Commits

Author SHA1 Message Date
Daniel Stenberg
8ece8177f1
cleanup: remove FIXME and TODO comments
They serve very little purpose and mostly just add noise. Most of them
have been around for a very long time. I read them all before removing
or rephrasing them.

Ref: #3876
Closes #3883
2019-05-16 09:16:56 +02:00
Steve Holme
fe20826b58
http_ntlm_wb: Move the type-2 message processing into a dedicated function
This brings the code inline with the other HTTP authentication mechanisms.

Closes #3890
2019-05-16 00:03:30 +01:00
Steve Holme
e832d1ef74
http_negotiate: Move the Negotiate state out of the negotiatedata structure
Given that this member variable is not used by the SASL based protocols
there is no need to have it here.

Closes #3882
2019-05-15 00:32:42 +01:00
Steve Holme
85bef18ca1
http_ntlm: Move the NTLM state out of the ntlmdata structure
Given that this member variable is not used by the SASL based protocols
there is no need to have it here.
2019-05-15 00:31:45 +01:00
Daniel Stenberg
6d32b72822
proxy: acknowledge DISABLE_PROXY more 2019-05-13 08:17:10 +02:00
Daniel Stenberg
b084616210
parsedate: CURL_DISABLE_PARSEDATE 2019-05-13 08:17:10 +02:00
Daniel Stenberg
b95456f4e2
mime: acknowledge CURL_DISABLE_MIME 2019-05-13 08:17:09 +02:00
Daniel Stenberg
7c70a3b1ad
http: CURL_DISABLE_HTTP_AUTH 2019-05-13 08:17:09 +02:00
Jay Satiro
b5901cab57 http: Ignore HTTP/2 prior knowledge setting for HTTP proxies
- Do not switch to HTTP/2 for an HTTP proxy that is not tunnelling to
  the destination host.

We already do something similar for HTTPS proxies by not sending h2. [1]

Prior to this change setting CURL_HTTP_VERSION_2_PRIOR_KNOWLEDGE would
incorrectly use HTTP/2 to talk to the proxy, which is not something we
support (yet?). Also it's debatable whether or not that setting should
apply to HTTP/2 proxies.

[1]: https://github.com/curl/curl/commit/17c5d05

Bug: https://github.com/curl/curl/issues/3570
Bug: https://github.com/curl/curl/issues/3832

Closes https://github.com/curl/curl/pull/3853
2019-05-08 22:50:41 -04:00
Daniel Stenberg
c32248f17d
http: mark bundle as not for multiuse on < HTTP/2 response
Fixes #3813
Closes #3815
2019-05-01 22:51:23 +02:00
Daniel Stenberg
2f44e94efb
pipelining: removed
As previously planned and documented in DEPRECATE.md, all pipelining
code is removed.

Closes #3651
2019-04-06 22:49:50 +02:00
Dominik Hölzl
6c60355323
Negotiate: fix for HTTP POST with Negotiate
* Adjusted unit tests 2056, 2057
* do not generally close connections with CURLAUTH_NEGOTIATE after every request
* moved negotiatedata from UrlState to connectdata
* Added stream rewind logic for CURLAUTH_NEGOTIATE
* introduced negotiatedata::GSS_AUTHDONE and negotiatedata::GSS_AUTHSUCC
* Consider authproblem state for CURLAUTH_NEGOTIATE
* Consider reuse_forbid for CURLAUTH_NEGOTIATE
* moved and adjusted negotiate authentication state handling from
  output_auth_headers into Curl_output_negotiate
* Curl_output_negotiate: ensure auth done is always set
* Curl_output_negotiate: Set auth done also if result code is
  GSS_S_CONTINUE_NEEDED/SEC_I_CONTINUE_NEEDED as this result code may
  also indicate the last challenge request (only works with disabled
  Expect: 100-continue and CURLOPT_KEEP_SENDING_ON_ERROR -> 1)
* Consider "Persistent-Auth" header, detect if not present;
  Reset/Cleanup negotiate after authentication if no persistent
  authentication
* apply changes introduced with #2546 for negotiate rewind logic

Fixes #1261
Closes #1975
2019-03-14 09:26:03 +01:00
Marc Schlatter
dd8a19f8a0
http: send payload when (proxy) authentication is done
The check that prevents payload from sending in case of authentication
doesn't check properly if the authentication is done or not.

They're cases where the proxy respond "200 OK" before sending
authentication challenge. This change takes care of that.

Fixes #2431
Closes #3669
2019-03-13 10:58:52 +01:00
Daniel Stenberg
5345b04a43
alt-svc: add test 355 and 356 to verify with command line curl 2019-03-03 11:17:52 +01:00
Daniel Stenberg
e1be825453
alt-svc: the libcurl bits 2019-03-03 11:17:52 +01:00
Daniel Stenberg
65eb65fde6
urldata: simplify bytecounters
- no need to have them protocol specific

- no need to set pointers to them with the Curl_setup_transfer() call

- make Curl_setup_transfer() operate on a transfer pointer, not
  connection

- switch some counters from long to the more proper curl_off_t type

Closes #3627
2019-03-01 17:30:34 +01:00
Daniel Stenberg
f1d915ea49
http: set state.infilesize when sending formposts
Without it set, we would unwillingly triger the "HTTP error before end
of send, stop sending" condition even if the entire POST body had been
sent (since it wouldn't know the expected size) which would
unnecessarily log that message and close the connection when it didn't
have to.

Reported-by: Matt McClure
Bug: https://curl.haxx.se/mail/archive-2019-02/0023.html
Closes #3624
2019-02-28 15:24:03 +01:00
Daniel Stenberg
62a2534e4c
urldata: convert bools to bitfields and move to end
This allows the compiler to pack and align the structs better in
memory. For a rather feature-complete build on x86_64 Linux, gcc 8.1.2
makes the Curl_easy struct 4.9% smaller. From 6312 bytes to 6000.

Removed an unused struct field.

No functionality changes.

Closes #3610
2019-02-27 08:37:56 +01:00
Daniel Stenberg
942eb09e8a
http: make adding a blank header thread-safe
Previously the function would edit the provided header in-place when a
semicolon is used to signify an empty header. This made it impossible to
use the same set of custom headers in multiple threads simultaneously.

This approach now makes a local copy when it needs to edit the string.

Reported-by: d912e3 on github
Fixes #3578
Closes #3579
2019-02-19 10:18:47 +01:00
Daniel Stenberg
05b100aee2
cleanup: make local functions static
urlapi: turn three local-only functions into statics

conncache: make conncache_find_first_connection static

multi: make detach_connnection static

connect: make getaddressinfo static

curl_ntlm_core: make hmac_md5 static

http2: make two functions static

http: make http_setup_conn static

connect: make tcpnodelay static

tests: make UNITTEST a thing to mark functions with, so they can be static for
normal builds and non-static for unit test builds

... and mark Curl_shuffle_addr accordingly.

url: make up_free static

setopt: make vsetopt static

curl_endian: make write32_le static

rtsp: make rtsp_connisdead static

warnless: remove unused functions

memdebug: remove one unused function, made another static
2019-02-10 18:38:57 +01:00
Katsuhiko YOSHIDA
1f30dc886d
cookies: skip custom cookies when redirecting cross-site
Closes #3417
2019-01-09 15:18:08 +01:00
Daniel Stenberg
ebe658c1e5
Revert "http_negotiate: do not close connection until negotiation is completed"
This reverts commit 07ebaf8378.

This also reopens PR #3275 which brought the change now reverted.

Fixes #3384
Closes #3439
2019-01-07 09:36:36 +01:00
Daniel Stenberg
006ff62d8c
http: added options for allowing HTTP/0.9 responses
Added CURLOPT_HTTP09_ALLOWED and --http0.9 for this purpose.

For now, both the tool and library allow HTTP/0.9 by default.
docs/DEPRECATE.md lays out the plan for when to reverse that default: 6
months after the 7.64.0 release. The options are added already now so
that applications/scripts can start using them already now.

Fixes #2873
Closes #3383
2018-12-21 10:49:30 +01:00
Ayoub Boudhar
f464535bfd
http: Implement trailing headers for chunked transfers
This adds the CURLOPT_TRAILERDATA and CURLOPT_TRAILERFUNCTION
options that allow a callback based approach to sending trailing headers
with chunked transfers.

The test server (sws) was updated to take into account the detection of the
end of transfer in the case of trailing headers presence.

Test 1591 checks that trailing headers can be sent using libcurl.

Closes #3350
2018-12-14 10:10:48 +01:00
Daniel Gustafsson
7a09b52c98 cookies: leave secure cookies alone
Only allow secure origins to be able to write cookies with the
'secure' flag set. This reduces the risk of non-secure origins
to influence the state of secure origins. This implements IETF
Internet-Draft draft-ietf-httpbis-cookie-alone-01 which updates
RFC6265.

Closes #2956
Reviewed-by: Daniel Stenberg <daniel@haxx.se>
2018-12-13 09:57:58 +01:00
Jay Satiro
552f0205e6
http: fix HTTP auth to include query in URI
- Include query in the path passed to generate HTTP auth.

Recent changes to use the URL API internally (46e1640, 7.62.0)
inadvertently broke authentication URIs by omitting the query.

Fixes https://github.com/curl/curl/issues/3353
Closes #3356
2018-12-11 13:28:20 +01:00
Michael Kaufmann
c8bf8cc1e4
http: don't set CURLINFO_CONDITION_UNMET for http status code 204
The http status code 204 (No Content) should not change the "condition
unmet" flag. Only the http status code 304 (Not Modified) should do
this.

Closes #359
2018-12-11 13:22:42 +01:00
Johannes Schindelin
cbea2fd2c7
NTLM: force the connection to HTTP/1.1
Since v7.62.0, cURL tries to use HTTP/2 whenever the server announces
the capability. However, NTLM authentication only works with HTTP/1.1,
and will likely remain in that boat (for details, see
https://docs.microsoft.com/en-us/iis/get-started/whats-new-in-iis-10/http2-on-iis#when-is-http2-not-supported).

When we just found out that we want to use NTLM, and when the current
connection runs in HTTP/2 mode, let's force the connection to be closed
and to be re-opened using HTTP/1.1.

Fixes https://github.com/curl/curl/issues/3341.
Closes #3345

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2018-12-07 13:03:21 +01:00
Daniel Stenberg
dcd6f81025
snprintf: renamed and we now only use msnprintf()
The function does not return the same value as snprintf() normally does,
so readers may be mislead into thinking the code works differently than
it actually does. A different function name makes this easier to detect.

Reported-by: Tomas Hoger
Assisted-by: Daniel Gustafsson
Fixes #3296
Closes #3297
2018-11-23 08:26:51 +01:00
Elia Tufarolo
07ebaf8378
http_negotiate: do not close connection until negotiation is completed
Fix HTTP POST using CURLAUTH_NEGOTIATE.

Closes #3275
2018-11-16 23:38:47 +01:00
Viktor Szakats
ff9d7f4447 spelling fixes [ci skip]
as detected by codespell 1.14.0

Closes https://github.com/curl/curl/pull/3114
Reviewed-by: Marcel Raad <Marcel.Raad@teamviewer.com>
2018-10-08 19:37:40 +00:00
Daniel Stenberg
4058cf2a7f
http: fix memleak in rewind error path
If the rewind would fail, a strdup() would not get freed.

Detected by OSS-Fuzz

Bug: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10665
Closes #3044
2018-09-25 10:30:08 +02:00
Daniel Stenberg
e407e79c29
http: add missing return code check
Detected by Coverity. CID 1439610.

Follow-up from 46e164069d

Closes #3034
2018-09-23 23:08:39 +02:00
Daniel Stenberg
46e164069d
url: use the URL API internally as well
... to make it a truly unified URL parser.

Closes #3017
2018-09-22 11:58:10 +02:00
Daniel Stenberg
55dbcb061d
http: made Curl_add_buffer functions take a pointer-pointer
... so that they can clear the original pointer on failure, which makes
the error-paths and their cleanups easier.

Closes #2992
2018-09-16 23:22:37 +02:00
Daniel Stenberg
e6e9b006f7
upload: allocate upload buffer on-demand
Saves 16KB on the easy handle for operations that don't need that
buffer.

Part 1 of #2888
2018-08-18 15:48:08 +02:00
Daniel Stenberg
8440616f53
http: fix for tiny "HTTP/0.9" response
Deal with tiny "HTTP/0.9" (header-less) responses by checking the
status-line early, even before a full "HTTP/" is received to allow
detecting 0.9 properly.

Test 1266 and 1267 added to verify.

Fixes #2420
Closes #2872
2018-08-13 23:16:01 +02:00
Daniel Stenberg
2a278fd735
CURLINFO_SIZE_UPLOAD: fix missing counter update
Adds test 1522 for verification.

Reported-by: cjmsoregan
Fixes #2847
Closes #2864
2018-08-11 14:00:59 +02:00
Johannes Schindelin
6f5ef24f06
auth: pick Bearer authentication whenever a token is available
So far, the code tries to pick an authentication method only if
user/password credentials are available, which is not the case for
Bearer authentictation...

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Closes #2754
2018-07-24 10:11:49 +02:00
Johannes Schindelin
df57b439f4
auth: only ever pick CURLAUTH_BEARER if we *have* a Bearer token
The Bearer authentication was added to cURL 7.61.0, but there is a
problem: if CURLAUTH_ANY is selected, and the server supports multiple
authentication methods including the Bearer method, we strongly prefer
that latter method (only CURLAUTH_NEGOTIATE beats it), and if the Bearer
authentication fails, we will never even try to attempt any other
method.

This is particularly unfortunate when we already know that we do not
have any Bearer token to work with.

Such a scenario happens e.g. when using Git to push to Visual Studio
Team Services (which supports Basic and Bearer authentication among
other methods) and specifying the Personal Access Token directly in the
URL (this aproach is frequently taken by automated builds).

Let's make sure that we have a Bearer token to work with before we
select the Bearer authentication among the available authentication
methods.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Closes #2754
2018-07-24 10:11:25 +02:00
Daniel Stenberg
7b9bc96c77
http2: several cleanups
- separate easy handle from connections better
- added asserts on a number of places
- added sanity check of pipelines for debug builds

Closes #2751
2018-07-20 22:58:42 +02:00
Daniel Stenberg
5ae22272d1
Curl_debug: remove dead printhost code
The struct field is never set (since 5e0d9aea3) so remove the use of it
and remove the connectdata pointer from the prototype.

Reported-by: Tejas
Bug: https://curl.haxx.se/mail/lib-2018-06/0054.html
Closes #2647
2018-06-12 16:00:27 +02:00
Marian Klymov
c45360d463
cppcheck: fix warnings
- Get rid of variable that was generating false positive warning
(unitialized)

- Fix issues in tests

- Reduce scope of several variables all over

etc

Closes #2631
2018-06-11 11:14:48 +02:00
Rikard Falkeborn
8ea5d41fe0
strictness: correct {infof, failf} format specifiers
Closes #2623
2018-05-31 11:34:32 +02:00
Linus Lewandowski
239a7061f8
httpauth: add support for Bearer tokens
Closes #2102
2018-05-24 20:39:49 +02:00
Patrick Monnerat
09d16af49a http resume: skip body if http code 416 (range error) is ignored.
This avoids appending error data to already existing good data.

Test 92 is updated to match this change.
New test 1156 checks all combinations of --range/--resume, --fail,
Content-Range header and http status code 200/416.

Fixes #1163
Reported-By: Ithubg on github
Closes #2578
2018-05-22 13:23:02 +02:00
Daniel Stenberg
cb529b713f
checksrc: make sure sizeof() is used *with* parentheses
... and unify the source code to adhere.

Closes #2563
2018-05-21 23:21:47 +02:00
Rikard Falkeborn
eb49683e55
lib: Fix format specifiers 2018-05-14 09:42:27 +02:00
Daniel Stenberg
8c7b3737d2
http: restore buffer pointer when bad response-line is parsed
... leaving the k->str could lead to buffer over-reads later on.

CVE: CVE-2018-1000301
Assisted-by: Max Dymond

Detected by OSS-Fuzz.
Bug: https://curl.haxx.se/docs/adv_2018-b138.html
Bug: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=7105
2018-05-14 07:40:31 +02:00
Daniel Stenberg
e9d9d1af8a
http: don't set the "rewind" flag when not uploading anything
It triggers an assert.

Detected by OSS-Fuzz
Bug: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=8144
Closes #2546
2018-05-04 13:51:25 +02:00
Marcel Raad
0f31647cf7
lib: silence null-dereference warnings
In debug mode, MingGW-w64's GCC 7.3 issues null-dereference warnings
when dereferencing pointers after DEBUGASSERT-ing that they are not
NULL.
Fix this by removing the DEBUGASSERTs.

Suggested-by: Daniel Stenberg
Ref: https://github.com/curl/curl/pull/2463
2018-04-09 15:54:52 +02:00
Lauri Kasanen
4073cd83b2
cookies: when reading from a file, only remove_expired once
This drops the cookie load time for 8k cookies from 178ms to 15ms.

Closes #2441
2018-04-02 10:40:32 +02:00
Lawrence Matthews
6baeb6df35
CURLOPT_HAPROXYPROTOCOL: support the HAProxy PROXY protocol
Add --haproxy-protocol for the command line tool

Closes #2162
2018-03-17 11:50:06 +01:00
Daniel Stenberg
8123560d44
HTTP: allow "header;" to replace an internal header with a blank one
Reported-by: Michael Kaufmann
Fixes #2357
Closes #2362
2018-03-11 11:46:10 +01:00
Daniel Stenberg
03370fa5a0
http: fix the max header length detection logic
Previously, it would only check for max length if the existing alloc
buffer was to small to fit it, which often would make the header still
get used.

Reported-by: Guido Berhoerster
Bug: https://curl.haxx.se/mail/lib-2018-02/0056.html

Closes #2315
2018-02-16 22:51:07 +01:00
Björn Stenberg
b46cfbc068
TODO fixed: Detect when called from within callbacks
Closes #2302
2018-02-15 09:36:03 +01:00
Daniel Stenberg
ddd31dc5dd
time_t-fixes: remove typecasts to 'long' for info.filetime
They're now wrong.

Reported-by: Michael Kaufmann

Closes #2277
2018-02-01 07:50:59 +01:00
Daniel Stenberg
af32cd3859
http: prevent custom Authorization headers in redirects
... unless CURLOPT_UNRESTRICTED_AUTH is set to allow them. This matches how
curl already handles Authorization headers created internally.

Note: this changes behavior slightly, for the sake of reducing mistakes.

Added test 317 and 318 to verify.

Reported-by: Craig de Stigter
Bug: https://curl.haxx.se/docs/adv_2018-b3bf.html
2018-01-22 10:00:00 +01:00
Daniel Stenberg
f68e672715
HTTP: bail out on negative Content-Length: values
... and make the max filesize check trigger if the value is too big.

Updates test 178.

Reported-by: Brad Spencer
Fixes #2212
Closes #2223
2018-01-13 22:49:04 +01:00
Patrick Monnerat
dbcced8e32 HTTP: support multiple Content-Encodings
This is implemented as an output streaming stack of unencoders, the last
calling the client write procedure.

New test 230 checks this feature.

Bug: https://github.com/curl/curl/pull/2002
Reported-By: Daniel Bankhead
2017-11-05 15:09:48 +01:00
Daniel Stenberg
cda89c8b58 include: remove conncache.h inclusion from where its not needed 2017-11-01 10:06:32 +01:00
Daniel Stenberg
232dffcf24
RTSP: avoid integer overflow on funny RTSP response
... like a very large non-existing RTSP version number.

Added test 577 to verify.

Detected by OSS-fuzz.
Closes #1969
2017-10-09 00:41:48 +02:00
Michael Kaufmann
eac324f284 http: add custom empty headers to repeated requests
Closes #1920
2017-09-28 21:25:22 +02:00
Daniel Stenberg
87501e57f1
code style: remove wrong uses of multiple spaces
Closes #1878
2017-09-12 13:54:54 +02:00
Daniel Stenberg
20acb58a38
code style: use space after semicolon 2017-09-12 09:50:24 +02:00
Daniel Stenberg
e5743f08e7
code style: use spaces around pluses 2017-09-11 09:29:50 +02:00
Daniel Stenberg
6b84438d9a
code style: use spaces around equals signs 2017-09-11 09:29:50 +02:00
Daniel Stenberg
02eb6184ad
Curl_checkheaders: make it available for IMAP and SMTP too
... not only HTTP uses this now.

Closes #1875
2017-09-11 00:26:17 +02:00
Patrick Monnerat
ce0881edee mime: new MIME API.
Available in HTTP, SMTP and IMAP.
Deprecates the FORM API.
See CURLOPT_MIMEPOST.
Lib code and associated documentation.
2017-09-02 17:47:10 +01:00
Patrick Monnerat
3b51fa6285 http: fix a memory leakage in checkrtspprefix(). 2017-09-02 12:40:19 +01:00
Jan Alexander Steffens (heftig)
74dac344b2
http: Don't wait on CONNECT when there is no proxy
Since curl 7.55.0, NetworkManager almost always failed its connectivity
check by timeout. I bisected this to 5113ad04 (http-proxy: do the HTTP
CONNECT process entirely non-blocking).

This patch replaces !Curl_connect_complete with Curl_connect_ongoing,
which returns false if the CONNECT state was left uninitialized and lets
the connection continue.

Closes #1803
Fixes #1804

Also-fixed-by: Gergely Nagy
2017-08-18 15:25:22 +02:00
Daniel Stenberg
ff50fe0348
strtoofft: reduce integer overflow risks globally
... make sure we bail out on overflows.

Reported-by: Brian Carpenter
Closes #1758
2017-08-14 23:33:41 +02:00
Daniel Stenberg
909283ae5a http: fix response code parser to avoid integer overflow
test 1429 and 1433 were updated to work with the stricter HTTP status line
parser.

Closes #1714
Reported-by: Brian Carpenter
2017-07-31 18:37:43 +02:00
Daniel Stenberg
b22f93dbb8 http: s/TINY_INITIAL_POST_SIZE/EXPECT_100_THRESHOLD
Make the name reflect its use better, and add a short comment describing
what it's for.
2017-07-06 11:20:57 +02:00
Max Dymond
c75f63d7c4 handler: refactor connection checking
Add a new type of callback to Curl_handler which performs checks on
the connection. Alter RTSP so that it uses this callback to do its
own check on connection health.
2017-06-30 10:17:27 +02:00
Daniel Stenberg
9b167fd090 --request-target: instead of --strip-path-slash
... and CURLOPT_REQUEST_TARGET instead of CURLOPT_STRIP_PATH_SLASH.

This option instead provides the full "alternative" target to use in the
request, instead of extracting the path from the URL.

Test 1298 and 1299 updated accordingly.

Idea-by: Evert Pot
Suggestion: https://daniel.haxx.se/blog/2017/06/19/options-with-curl/comment-page-1/#comment-18373

Closes #1593
2017-06-21 23:39:10 +02:00
Daniel Stenberg
b778ae4c5e http: add --strip-path-slash and CURLOPT_STRIP_PATH_SLASH
... to enable sending "OPTIONS *" which wasn't possible previously.

This option currently only works for HTTP.

Added test cases 1298 + 1299 to verify

Fixes #1280
Closes #1462
2017-06-19 16:39:22 +02:00
Daniel Stenberg
5113ad0424 http-proxy: do the HTTP CONNECT process entirely non-blocking
Mentioned as a problem since 2007 (8f87c15bda) and of course it
existed even before that.

Closes #1547
2017-06-14 23:43:52 +02:00
Daniel Stenberg
e54db1b053 transfer: init the infilesize from the postfields...
... with a strlen() if no size was set, and do this in the pretransfer
function so that the info is set early. Otherwise, the default strlen()
done on the POSTFIELDS data never sets state.infilesize.

Reported-by: Vincas Razma
Bug: #1294
2017-05-30 11:39:42 +02:00
Daniel Stenberg
31b39c40cf multi: use a fixed array of timers instead of malloc
... since the total amount is low this is faster, easier and reduces
memory overhead.

Also, Curl_expire_done() can now mark an expire timeout as done so that
it never times out.

Closes #1472
2017-05-10 12:55:36 +02:00
Daniel Stenberg
e40e9d7f0d buffer: use data->set.buffer_size instead of BUFSIZE
... to properly use the dynamically set buffer size!
2017-05-01 22:55:29 +02:00
Daniel Stenberg
87eb8d5b30 http: don't clobber the receive buffer for timecond 2017-05-01 22:55:29 +02:00
Daniel Stenberg
94460878cc http: use private user:password output buffer
Don't clobber the receive buffer.
2017-05-01 22:55:29 +02:00
Kamil Dudka
2549831daa http: do not treat FTPS over CONNECT as HTTPS
If we use FTPS over CONNECT, the TLS handshake for the FTPS control
connection needs to be initiated in the SENDPROTOCONNECT state, not
the WAITPROXYCONNECT state.  Otherwise, if the TLS handshake completed
without blocking, the information about the completed TLS handshake
would be saved to a wrong flag.  Consequently, the TLS handshake would
be initiated in the SENDPROTOCONNECT state once again on the same
connection, resulting in a failure of the TLS handshake.  I was able to
observe the failure with the NSS backend if curl ran through valgrind.

Note that this commit partially reverts curl-7_21_6-52-ge34131d.
2017-03-28 17:04:16 +02:00
Isaac Boukris
7975d10cf8 http: Fix proxy connection reuse with basic-auth
When using basic-auth, connections and proxy connections
can be re-used with different Authorization headers since
it does not authenticate the connection (like NTLM does).

For instance, the below command should re-use the proxy
connection, but it currently doesn't:
curl -v -U alice:a -x http://localhost:8181 http://localhost/
  --next -U bob:b -x http://localhost:8181 http://localhost/

This is a regression since refactoring of ConnectionExists()
as part of: cb4e2be7c6

Fix the above by removing the username and password compare
when re-using proxy connection at proxy_info_matches().

However, this fix brings back another bug would make curl
to re-print the old proxy-authorization header of previous
proxy basic-auth connection because it wasn't cleared.

For instance, in the below command the second request should
fail if the proxy requires authentication, but would succeed
after the above fix (and before aforementioned commit):
curl -v -U alice:a -x http://localhost:8181 http://localhost/
  --next -x http://localhost:8181 http://localhost/

Fix this by clearing conn->allocptr.proxyuserpwd after use
unconditionally, same as we do for conn->allocptr.userpwd.

Also fix test 540 to not expect digest auth header to be
resent when connection is reused.

Signed-off-by: Isaac Boukris <iboukris@gmail.com>

Closes https://github.com/curl/curl/pull/1350
2017-03-28 03:54:43 -04:00
klemens
f7df67cff0 spelling fixes
Closes #1356
2017-03-26 23:56:23 +02:00
Sylvestre Ledru
66de563482 Improve code readbility
... by removing the else branch after a return, break or continue.

Closes #1310
2017-03-13 23:11:45 +01:00
Michael Kaufmann
e84a863dc3 proxy: skip SSL initialization for closed connections
This prevents a "Descriptor is not a socket" error for WinSSL.

Reported-by: Antony74@users.noreply.github.com
Reviewed-by: Jay Satiro

Fixes https://github.com/curl/curl/issues/1239
2017-03-11 18:59:01 +01:00
Isaac Boukris
5278462c32 authneg: clear auth.multi flag at http_done
This flag is meant for the current request based on authentication
state, once the request is done we can clear the flag.

Also change auth.multi to auth.multipass for better readability.

Fixes https://github.com/curl/curl/issues/1095
Closes https://github.com/curl/curl/pull/1326

Signed-off-by: Isaac Boukris <iboukris@gmail.com>
Reported-by: Michael Kaufmann
2017-03-11 18:12:08 +01:00
Tatsuhiro Tsujikawa
475c2583d5 http2: Fix assertion error on redirect with CL=0
This fixes assertion error which occurs when redirect is done with 0
length body via HTTP/2, and the easy handle is reused, but new
connection is established due to hostname change:

    curl: http2.c:1572: ssize_t http2_recv(struct connectdata *,
      int, char *, size_t, CURLcode *):
    Assertion `httpc->drain_total >= data->state.drain' failed.

To fix this bug, ensure that http2_handle_stream is called.

Fixes #1286
Closes #1302
2017-03-07 23:12:41 +01:00
Isaac Boukris
13e3a18b34 http: fix missing 'Content-Length: 0' while negotiating auth
- While negotiating auth during PUT/POST if a user-specified
  Content-Length header is set send 'Content-Length: 0'.

This is what we do already in HTTPREQ_POST_FORM and what we did in the
HTTPREQ_POST case (regression since afd288b).

Prior to this change no Content-Length header would be sent in such a
case.

Bug: https://curl.haxx.se/mail/lib-2017-02/0006.html
Reported-by: Dominik Hölzl

Closes https://github.com/curl/curl/pull/1242
2017-02-17 02:32:16 -05:00
Richy Kim
6b7616690e CURLOPT_BUFFERSIZE: support enlarging receive buffer
Replace use of fixed macro BUFSIZE to define the size of the receive
buffer.  Reappropriate CURLOPT_BUFFERSIZE to include enlarging receive
buffer size.  Upon setting, resize buffer if larger than the current
default size up to a MAX_BUFSIZE (512KB). This can benefit protocols
like SFTP.

Closes #1222
2017-01-19 23:38:04 +01:00
Alessandro Ghedini
1ad1a0d186 http: print correct HTTP string in verbose output when using HTTP/2
Before:
```
 % src/curl https://sigsegv.ninja/ -v --http2
...
> GET / HTTP/1.1
> Host: sigsegv.ninja
> User-Agent: curl/7.52.2-DEV
> Accept: */*
>
...
```

After:
```
 % src/curl https://sigsegv.ninja/ -v --http2
...
> GET / HTTP/2
> Host: sigsegv.ninja
> User-Agent: curl/7.52.2-DEV
> Accept: */*
>
```
2017-01-14 12:50:51 +00:00
Daniel Stenberg
9aa259a139 http: remove "Curl_http_done: called premature" message
... it only confuses people.
2016-12-23 23:32:43 +01:00
Daniel Stenberg
1c3e8bbfed checksrc: warn for assignments within if() expressions
... they're already frowned upon in our source code style guide, this
now enforces the rule harder.
2016-12-14 01:29:44 +01:00
Daniel Stenberg
b228d2952b checksrc: stricter no-space-before-paren enforcement
In order to make the code style more uniform everywhere
2016-12-13 23:39:11 +01:00
Alex Rousskov
cb4e2be7c6 proxy: Support HTTPS proxy and SOCKS+HTTP(s)
* HTTPS proxies:

An HTTPS proxy receives all transactions over an SSL/TLS connection.
Once a secure connection with the proxy is established, the user agent
uses the proxy as usual, including sending CONNECT requests to instruct
the proxy to establish a [usually secure] TCP tunnel with an origin
server. HTTPS proxies protect nearly all aspects of user-proxy
communications as opposed to HTTP proxies that receive all requests
(including CONNECT requests) in vulnerable clear text.

With HTTPS proxies, it is possible to have two concurrent _nested_
SSL/TLS sessions: the "outer" one between the user agent and the proxy
and the "inner" one between the user agent and the origin server
(through the proxy). This change adds supports for such nested sessions
as well.

A secure connection with a proxy requires its own set of the usual SSL
options (their actual descriptions differ and need polishing, see TODO):

  --proxy-cacert FILE        CA certificate to verify peer against
  --proxy-capath DIR         CA directory to verify peer against
  --proxy-cert CERT[:PASSWD] Client certificate file and password
  --proxy-cert-type TYPE     Certificate file type (DER/PEM/ENG)
  --proxy-ciphers LIST       SSL ciphers to use
  --proxy-crlfile FILE       Get a CRL list in PEM format from the file
  --proxy-insecure           Allow connections to proxies with bad certs
  --proxy-key KEY            Private key file name
  --proxy-key-type TYPE      Private key file type (DER/PEM/ENG)
  --proxy-pass PASS          Pass phrase for the private key
  --proxy-ssl-allow-beast    Allow security flaw to improve interop
  --proxy-sslv2              Use SSLv2
  --proxy-sslv3              Use SSLv3
  --proxy-tlsv1              Use TLSv1
  --proxy-tlsuser USER       TLS username
  --proxy-tlspassword STRING TLS password
  --proxy-tlsauthtype STRING TLS authentication type (default SRP)

All --proxy-foo options are independent from their --foo counterparts,
except --proxy-crlfile which defaults to --crlfile and --proxy-capath
which defaults to --capath.

Curl now also supports %{proxy_ssl_verify_result} --write-out variable,
similar to the existing %{ssl_verify_result} variable.

Supported backends: OpenSSL, GnuTLS, and NSS.

* A SOCKS proxy + HTTP/HTTPS proxy combination:

If both --socks* and --proxy options are given, Curl first connects to
the SOCKS proxy and then connects (through SOCKS) to the HTTP or HTTPS
proxy.

TODO: Update documentation for the new APIs and --proxy-* options.
Look for "Added in 7.XXX" marks.
2016-11-24 23:41:44 +01:00
Daniel Stenberg
0649433da5 realloc: use Curl_saferealloc to avoid common mistakes
Discussed: https://curl.haxx.se/mail/lib-2016-11/0087.html
2016-11-11 10:03:48 +01:00
Daniel Stenberg
811a693b80 strcasecompare: all case insensitive string compares ignore locale now
We had some confusions on when each function was used. We should not act
differently on different locales anyway.
2016-10-31 08:46:35 +01:00
Daniel Stenberg
502acba2af strcasecompare: is the new name for strequal()
... to make it less likely that we forget that the function actually
does case insentive compares. Also replaced several invokes of the
function with a plain strcmp when case sensitivity is not an issue (like
comparing with "-").
2016-10-31 08:46:35 +01:00