Follow-up to c4e6968127
When a new transfer is created, as a resuly of an acknowledged push,
that transfer needs a download buffer allocated.
Closes#5590
Since the connection can be used by many independent requests (using
HTTP/2 or HTTP/3), things like user-agent and other transfer-specific
data MUST NOT be kept connection oriented as it could lead to requests
getting the wrong string for their requests. This struct data was
lingering like this due to old HTTP1 legacy thinking where it didn't
mattered..
Fixes#5566Closes#5567
When the method is updated inside libcurl we must still not change the
method as set by the user as then repeated transfers with that same
handle might not execute the same operation anymore!
This fixes the libcurl part of #5462
Test 1633 added to verify.
Closes#5499
... and free it as soon as the transfer is done. It removes the extra
alloc when a new size is set with setopt() and reduces memory for unused
easy handles.
In addition: the closure_handle now doesn't use an allocated buffer at
all but the smallest supported size as a stack based one.
Closes#5472
They're only limited to the maximum string input restrictions, not to
256 bytes.
Added test 1178 to verify
Reported-by: Will Roberts
Fixes#5448Closes#5449
This change introduces a generic way to provide binary data in setopt
options, called BLOBs.
This change introduces these new setopts:
CURLOPT_ISSUERCERT_BLOB, CURLOPT_PROXY_SSLCERT_BLOB,
CURLOPT_PROXY_SSLKEY_BLOB, CURLOPT_SSLCERT_BLOB and CURLOPT_SSLKEY_BLOB.
Reviewed-by: Daniel Stenberg
Closes#5357
Since input passed to libcurl with CURLOPT_USERPWD and
CURLOPT_PROXYUSERPWD circumvents the regular string length check we have
in Curl_setstropt(), the input length limit is enforced in
Curl_parse_login_details too, separately.
Reported-by: Thomas Bouzerar
Closes#5383
When looking for a protocol match among supported schemes, check the
most "popular" schemes first. It has zero functionality difference and
for all practical purposes a speed difference will not be measureable
but it still think it makes sense to put the least likely matches last.
"Popularity" based on the 2019 user survey.
Closes#5377
A common set of functions instead of many separate implementations for
creating buffers that can grow when appending data to them. Existing
functionality has been ported over.
In my early basic testing, the total number of allocations seem at
roughly the same amount as before, possibly a few less.
See docs/DYNBUF.md for a description of the API.
Closes#5300
More connection cache accesses are protected by locks.
CONNCACHE_* is a beter prefix for the connection cache lock macros.
Curl_attach_connnection: now called as soon as there's a connection
struct available and before the connection is added to the connection
cache.
Curl_disconnect: now assumes that the connection is already removed from
the connection cache.
Ref: #4915Closes#5009
... since the current transfer is being killed. Setting to NULL is
wrong, leaving it pointing to 'data' is wrong since that handle might be
about to get freed.
Fixes#4845Closes#4858
Reported-by: dmitrmax on github
A regression made the code use 'multiplexed' as a boolean instead of the
counter it is intended to be. This made curl try to "over-populate"
connections with new streams.
This regression came with 41fcdf71a1, shipped in curl 7.65.0.
Also, respect the CURLMOPT_MAX_CONCURRENT_STREAMS value in the same
check.
Reported-by: Kunal Ekawde
Fixes#4779Closes#4784
... as it would previously prefer new connections rather than
multiplexing in most conditions! The (now removed) code was a leftover
from the Pipelining code that was translated wrongly into a
multiplex-only world.
Reported-by: Kunal Ekawde
Bug: https://curl.haxx.se/mail/lib-2019-12/0060.htmlCloses#4732
It could accidentally let the connection get used by more than one
thread, leading to double-free and more.
Reported-by: Christopher Reid
Fixes#4544Closes#4557
- Disable warning C4127 "conditional expression is constant" globally
in curl_setup.h for when building with Microsoft's compiler.
This mainly affects building with the Visual Studio project files found
in the projects dir.
Prior to this change the cmake and winbuild build systems already
disabled 4127 globally for when building with Microsoft's compiler.
Also, 4127 was already disabled for all build systems in the limited
circumstance of the WHILE_FALSE macro which disabled the warning
specifically for while(0). This commit removes the WHILE_FALSE macro and
all other cruft in favor of disabling globally in curl_setup.
Background:
We have various macros that cause 0 or 1 to be evaluated, which would
cause warning C4127 in Visual Studio. For example this causes it:
#define Curl_resolver_asynch() 1
Full behavior is not clearly defined and inconsistent across versions.
However it is documented that since VS 2015 Update 3 Microsoft has
addressed this somewhat but not entirely, not warning on while(true) for
example.
Prior to this change some C4127 warnings occurred when I built with
Visual Studio using the generated projects in the projects dir.
Closes https://github.com/curl/curl/pull/4658
The URL extracted with CURLINFO_EFFECTIVE_URL was returned as given as
input in most cases, which made it not get a scheme prefixed like before
if the URL was given without one, and it didn't remove dotdot sequences
etc.
Added test case 1907 to verify that this now works as intended and as
before 7.62.0.
Regression introduced in 7.62.0
Reported-by: Christophe Dervieux
Fixes#4491Closes#4493
To make sure that the HTTP/2 state is initialized correctly for
duplicated handles. It would otherwise easily generate "spurious"
PRIORITY frames to get sent over HTTP/2 connections when duplicated easy
handles were used.
Reported-by: Daniel Silverstone
Fixes#4303Closes#4442
Prior to this change non-ssl/non-ssh connections that were reused set
TIMER_APPCONNECT [1]. Arguably that was incorrect since no SSL/SSH
handshake took place.
[1]: TIMER_APPCONNECT is publicly known as CURLINFO_APPCONNECT_TIME in
libcurl and %{time_appconnect} in the curl tool. It is documented as
"the time until the SSL/SSH handshake is completed".
Reported-by: Marcel Hernandez
Ref: https://github.com/curl/curl/issues/3760
Closes https://github.com/curl/curl/pull/3773
If you set the same URL for target as for DoH (and it isn't a DoH
server), like "https://example.com" in both, the easy handles used for
the DoH requests could be left "dangling" and end up not getting freed.
Reported-by: Paul Dreik
Closes#4366
So that users can mask in/out specific HTTP versions when Alt-Svc is
used.
- Removed "h2c" and updated test case accordingly
- Changed how the altsvc struct is laid out
- Added ifdefs to make the unittest run even in a quiche-tree
Closes#4201
RFC 7838 section 5:
When using an alternative service, clients SHOULD include an Alt-Used
header field in all requests.
Removed CURLALTSVC_ALTUSED again (feature is still EXPERIMENTAL thus
this is deemed ok).
You can disable sending this header just like you disable any other HTTP
header in libcurl.
Closes#4199
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#3653Closes#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.
Closes https://github.com/curl/curl/pull/4186
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.
Closes#4191
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.
Closes#4169
USe configure --with-ngtcp2 or --with-quiche
Using either option will enable a HTTP3 build.
Co-authored-by: Alessandro Ghedini <alessandro@ghedini.me>
Closes#3500
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.
[1]: https://www.acunetix.com/blog/articles/server-side-request-forgery-vulnerability/
Signed-off-by: Linos Giannopoulos <lgian@skroutz.gr>
Closes#4094
Old connections are meant to expire from the connection cache after
CURLOPT_MAXAGE_CONN seconds. However, they actually expire after 1000x
that value. This occurs because a time value measured in milliseconds is
accidentally divided by 1M instead of by 1,000.
Closes https://github.com/curl/curl/pull/4013
Since more than one socket can be used by each transfer at a given time,
each sockhash entry how has its own hash table with transfers using that
socket.
In addition, the sockhash entry can now be marked 'blocked = TRUE'"
which then makes the delete function just set 'removed = TRUE' instead
of removing it "for real", as a way to not rip out the carpet under the
feet of a parent function that iterates over the transfers of that same
sockhash entry.
Reported-by: Tom van der Woerdt
Fixes#3961Fixes#3986Fixes#3995Fixes#4004Closes#3997
This fixes the static dependency on iphlpapi.lib and allows curl to
build for targets prior to Windows Vista.
This partially reverts 170bd047.
Fixes#3960Closes#3958
... so that it has a sensible value when ConnectionExists() is called which
needs it set to differentiate host "bundles" correctly on port number!
Also, make conncache:hashkey() use correct port for bundles that are proxy vs
host connections.
Probably a regression from 7.62.0
Reported-by: Tom van der Woerdt
Fixes#3956Closes#3957
Only HTTP proxy use where multiple host names can be used over the same
connection should use the proxy host name for bundles.
Reported-by: Tom van der Woerdt
Fixes#3951Closes#3955
- Revert all commits related to the SASL authzid feature since the next
release will be a patch release, 7.65.1.
Prior to this change CURLOPT_SASL_AUTHZID / --sasl-authzid was destined
for the next release, assuming it would be a feature release 7.66.0.
However instead the next release will be a patch release, 7.65.1 and
will not contain any new features.
After the patch release after the reverted commits can be restored by
using cherry-pick:
git cherry-pick a14d72ca9499ff8c1cc36c2a8d520edf690
Details for all reverted commits:
Revert "os400: take care of CURLOPT_SASL_AUTHZID in curl_easy_setopt_ccsid()."
This reverts commit 0edf6907ae.
Revert "tests: Fix the line endings for the SASL alt-auth tests"
This reverts commit c2a8d52a13.
Revert "examples: Added SASL PLAIN authorisation identity (authzid) examples"
This reverts commit 8c1cc369d0.
Revert "curl: --sasl-authzid added to support CURLOPT_SASL_AUTHZID from the tool"
This reverts commit a9499ff136.
Revert "sasl: Implement SASL authorisation identity via CURLOPT_SASL_AUTHZID"
This reverts commit a14d72ca2f.
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.
Fixed#3653Closes#3790
If the proxy string is given as an IPv6 numerical address with a zone
id, make sure to use that for the connect to the proxy.
Reported-by: Edmond Yu
Fixes#3482Closes#3918
Given that Curl_disconnect() calls Curl_http_auth_cleanup_ntlm() prior
to calling conn_shutdown() and it in turn performs this, there is no
need to perform the same action in conn_shutdown().
Closes#3881
- make sure an already "owned" connection isn't returned unless
multiplexed.
- clear ->data when returning the connection to the cache again
Regression since 7.62.0 (probably in commit 1b76c38904)
Bug: https://curl.haxx.se/mail/lib-2019-03/0064.htmlCloses#3686
* 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#1261Closes#1975
- 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
- Split off connection shutdown procedure from Curl_disconnect into new
function conn_shutdown.
- Change the shutdown procedure to close the sockets before
disassociating the transfer.
Prior to this change the sockets were closed after disassociating the
transfer so SOCKETFUNCTION wasn't called since the transfer was already
disassociated. That likely came about from recent work started in
Jan 2019 (#3442) to separate transfers from connections.
Bug: https://curl.haxx.se/mail/lib-2019-02/0101.html
Reported-by: Pavel Löbl
Closes https://github.com/curl/curl/issues/3597
Closes https://github.com/curl/curl/pull/3598
- Save the original conn->data before it's changed to the specified
data transfer for the connection check and then restore it afterwards.
This is a follow-up to 38d8e1b 2019-02-11.
History:
It was discovered a month ago that before checking whether to extract a
dead connection that that connection should be associated with a "live"
transfer for the check (ie original conn->data ignored and set to the
passed in data). A fix was landed in 54b201b which did that and also
cleared conn->data after the check. The original conn->data was not
restored, so presumably it was thought that a valid conn->data was no
longer needed.
Several days later it was discovered that a valid conn->data was needed
after the check and follow-up fix was landed in bbae24c which partially
reverted the original fix and attempted to limit the scope of when
conn->data was changed to only when pruning dead connections. In that
case conn->data was not cleared and the original conn->data not
restored.
A month later it was discovered that the original fix was somewhat
correct; a "live" transfer is needed for the check in all cases
because original conn->data could be null which could cause a bad deref
at arbitrary points in the check. A fix was landed in 38d8e1b which
expanded the scope to all cases. conn->data was not cleared and the
original conn->data not restored.
A day later it was discovered that not restoring the original conn->data
may lead to busy loops in applications that use the event interface, and
given this observation it's a pretty safe assumption that there is some
code path that still needs the original conn->data. This commit is the
follow-up fix for that, it restores the original conn->data after the
connection check.
Assisted-by: tholin@users.noreply.github.com
Reported-by: tholin@users.noreply.github.com
Fixes https://github.com/curl/curl/issues/3542Closes#3559
