NOTE: This commit was cherry-picked and is part of a series of commits
that added the authzid feature for upcoming 7.66.0. The series was
temporarily reverted in db8ec1f so that it would not ship in a 7.65.x
patch release.
NOTE: This commit was cherry-picked and is part of a series of commits
that added the authzid feature for upcoming 7.66.0. The series was
temporarily reverted in db8ec1f so that it would not ship in a 7.65.x
patch release.
NOTE: This commit was cherry-picked and is part of a series of commits
that added the authzid feature for upcoming 7.66.0. The series was
temporarily reverted in db8ec1f so that it would not ship in a 7.65.x
patch release.
NOTE: This commit was cherry-picked and is part of a series of commits
that added the authzid feature for upcoming 7.66.0. The series was
temporarily reverted in db8ec1f so that it would not ship in a 7.65.x
patch release.
Steve Holme [Wed, 17 Apr 2019 22:47:51 +0000 (23:47 +0100)]
sasl: Implement SASL authorisation identity via CURLOPT_SASL_AUTHZID
Added the ability for the calling program to specify the authorisation
identity (authzid), the identity to act as, in addition to the
authentication identity (authcid) and password when using SASL PLAIN
authentication.
Fixes #3653
Closes #3790
NOTE: This commit was cherry-picked and is part of a series of commits
that added the authzid feature for upcoming 7.66.0. The series was
temporarily reverted in db8ec1f so that it would not ship in a 7.65.x
patch release.
Daniel Stenberg [Mon, 29 Jul 2019 11:41:00 +0000 (13:41 +0200)]
curl_multi_poll: a sister to curl_multi_wait() that waits more
Repeatedly we see problems where using curl_multi_wait() is difficult or
just awkward because if it has no file descriptor to wait for
internally, it returns immediately and leaves it to the caller to wait
for a small amount of time in order to avoid occasional busy-looping.
This is often missed or misunderstood, leading to underperforming
applications.
This change introduces curl_multi_poll() as a replacement drop-in
function that accepts the exact same set of arguments. This function
works identically to curl_multi_wait() - EXCEPT - for the case when
there's nothing to wait for internally, as then this function will by
itself wait for a "suitable" short time before it returns. This
effectiely avoids all risks of busy-looping and should also make it less
likely that apps "over-wait".
This also changes the curl tool to use this funtion internally when
doing parallel transfers and changes curl_easy_perform() to use it
internally.
Daniel Stenberg [Mon, 5 Aug 2019 07:45:23 +0000 (09:45 +0200)]
http09: disable HTTP/0.9 by default in both tool and library
As the plan has been laid out in DEPRECATED. Update docs accordingly and
verify in test 1174. Now requires the option to be set to allow HTTP/0.9
responses.
http_negotiate: improve handling of gss_init_sec_context() failures
If HTTPAUTH_GSSNEGOTIATE was used for a POST request and
gss_init_sec_context() failed, the POST request was sent
with empty body. This commit also restores the original
behavior of `curl --fail --negotiate`, which was changed
by commit 6c6035532383e300c712e4c1cd9fdd749ed5cf59.
Daniel Stenberg [Tue, 30 Jul 2019 09:02:03 +0000 (11:02 +0200)]
cleanup: remove the 'numsocks' argument used in many places
It was used (intended) to pass in the size of the 'socks' array that is
also passed to these functions, but was rarely actually checked/used and
the array is defined to a fixed size of MAX_SOCKSPEREASYHANDLE entries
that should be used instead.
HTTP: use chunked Transfer-Encoding for HTTP_POST if size unknown
If using the read callback for HTTP_POST, and POSTFIELDSIZE is not set,
automatically add a Transfer-Encoding: chunked header, same as it is
already done for HTTP_PUT, HTTP_POST_FORM and HTTP_POST_MIME. Update
test 1514 according to the new behaviour.
Jay Satiro [Tue, 23 Jul 2019 21:59:18 +0000 (17:59 -0400)]
easy: resize receive buffer on easy handle reset
- In curl_easy_reset attempt to resize the receive buffer to its default
size. If realloc fails then continue using the previous size.
Prior to this change curl_easy_reset did not properly handle resetting
the receive buffer (data->state.buffer). It reset the variable holding
its size (data->set.buffer_size) to the default size (READBUFFER_SIZE)
but then did not actually resize the buffer. If a user resized the
buffer by using CURLOPT_BUFFERSIZE to set the size smaller than the
default, later called curl_easy_reset and attempted to reuse the handle
then a heap overflow would very likely occur during that handle's next
transfer.
Reported-by: Felix Hädicke
Fixes https://github.com/curl/curl/issues/4143
Closes https://github.com/curl/curl/pull/4145
examples: Avoid reserved names in hiperfifo examples
- Trade in __attribute__((unused)) for the classic (void)x to silence
unused symbols.
Because the classic way is not gcc specific. Also because the prior
method mapped to symbol _Unused, which starts with _ and a capital
letter which is reserved.
Assisted-by: The Infinnovation team
Bug: https://github.com/curl/curl/issues/4120#issuecomment-512542108
Felix Hädicke [Wed, 24 Jul 2019 09:47:51 +0000 (11:47 +0200)]
ssh-libssh: do not specify O_APPEND when not in append mode
Specifying O_APPEND in conjunction with O_TRUNC and O_CREAT does not
make much sense. And this combination of flags is not accepted by all
SFTP servers (at least not Apache SSHD).
Daniel Stenberg [Fri, 19 Jul 2019 10:05:05 +0000 (12:05 +0200)]
source: remove names from source comments
Several reasons:
- we can't add everyone who's helping out so its unfair to just a few
selected ones.
- we already list all helpers in THANKS and in RELEASE-NOTES for each
release
- we don't want to give the impression that some parts of the code is
"owned" or "controlled" by specific persons
cmake: Fix finding Brotli on case-sensitive file systems
- Find package "Brotli" instead of "BROTLI" since the former is the
casing used for CMake/FindBrotli.cmake, and otherwise find_package
may fail on a case-sensitive file system.
If the SSL backend is Schannel and the user specifies an Schannel CALG_
that is not supported by the protocol or the server then curl returns
CURLE_SSL_CONNECT_ERROR (35) SEC_E_ALGORITHM_MISMATCH.
PK11_IsPresent() checks for the token for the given slot is available,
and sets needlogin flags for the PK11_Authenticate() call. Should it
return false, we should however treat it as an error and bail out.
Jay Satiro [Tue, 16 Jul 2019 16:27:35 +0000 (12:27 -0400)]
docs: Explain behavior change in --tlsv1. options since 7.54
Since 7.54 --tlsv1. options use the specified version or later, however
older versions of curl documented it as using just the specified version
which may or may not have happened depending on the TLS library.
Document this discrepancy to allay confusion for users familiar with the
old documentation that expect just the specified version.
The testcase ensures that redirects to CURLPROTO_GOPHER won't be
allowed, by default, in the future. Also, curl is being used
for convenience while keeping the testcases DRY.
The expected error code is CURLE_UNSUPPORTED_PROTOCOL when the client is
redirected to CURLPROTO_GOPHER
All protocols except for CURLPROTO_FILE/CURLPROTO_SMB and their TLS
counterpart were allowed for redirect. This vastly broadens the
exploitation surface in case of a vulnerability such as SSRF [1], where
libcurl-based clients are forced to make requests to arbitrary hosts.
For instance, CURLPROTO_GOPHER can be used to smuggle any TCP-based
protocol by URL-encoding a payload in the URI. Gopher will open a TCP
connection and send the payload.
Only HTTP/HTTPS and FTP are allowed. All other protocols have to be
explicitly enabled for redirects through CURLOPT_REDIR_PROTOCOLS.
Peter Simonyi [Wed, 10 Jul 2019 22:42:35 +0000 (18:42 -0400)]
http: allow overriding timecond with custom header
With CURLOPT_TIMECONDITION set, a header is automatically added (e.g.
If-Modified-Since). Allow this to be replaced or suppressed with
CURLOPT_HTTPHEADER.