CURLINFO_CONDITION_UNMET: return true for 304 http status code
In libcurl, CURLINFO_CONDITION_UNMET is used to avoid writing to the
output file if the server did not transfered a file based on time
condition. In the same manner, getting a 304 HTTP response back from the
server, for example after passing a custom If-Match-* header, also
fulfill this condition.
curl: allow both --etag-compare and --etag-save with same file name
This change inverse the order of processing for the --etag-compare and
--etag-save option to process first --etag-compare. This in turn allows
to use the same file name to compare and save an etag.
The original behavior of not failing if the etag file does not exists is
conserved.
Viktor Szakats [Sat, 4 Apr 2020 17:49:20 +0000 (17:49 +0000)]
windows: enable UnixSockets with all build toolchains
Extend existing unix socket support in Windows builds to be
enabled for all toolchain vendors or versions. (Previously
it was only supported with certain MSVC versions + more recent
Windows 10 SDKs)
Marc Hoersken [Sun, 29 Mar 2020 16:25:31 +0000 (18:25 +0200)]
sockfilt: fix handling of ready closed sockets on Windows
Replace the incomplete workaround regarding FD_CLOSE
only signalling once by instead doing a pre-check with
standard select and storing the result for later use.
select keeps triggering on closed sockets on Windows while
WSAEventSelect fires only once with data still available.
By doing the pre-check we do not run in a deadlock
due to waiting forever for another FD_CLOSE event.
Daiki Ueno [Sun, 29 Mar 2020 12:53:39 +0000 (14:53 +0200)]
ngtcp2: update to git master for the key installation API change
This updates the ngtcp2 OpenSSL backend to follow the API change in
commit 32e703164 of ngtcp2.
Notable changes are:
- ngtcp2_crypto_derive_and_install_{rx,tx}_key have been added to replace
ngtcp2_crypto_derive_and_install_key
- the 'side' argument of ngtcp2_crypto_derive_and_install_initial_key
has been removed
Daniel Stenberg [Wed, 25 Mar 2020 22:16:28 +0000 (23:16 +0100)]
docs/make: generate curl.1 from listed files only
Previously it rendered the page from files matching "*.d" in the correct
directory, which worked fine in git builds when the files were added but
made it easy to forget adding the files to the dist.
Now, only man page sections listed in DPAGES in Makefile.inc will be
used, thus "forcing" us to update this to get the man page right and get
it included in the dist at the same time.
Daniel Stenberg [Mon, 23 Mar 2020 11:28:20 +0000 (12:28 +0100)]
openssl: adapt to functions marked as deprecated since version 3
OpenSSL 3 deprecates SSL_CTX_load_verify_locations and the MD4, DES
functions we use.
Fix the MD4 and SSL_CTX_load_verify_locations warnings.
In configure, detect OpenSSL v3 and if so, inhibit the deprecation
warnings. OpenSSL v3 deprecates the DES functions we use for NTLM and
until we rewrite the code to use non-deprecated functions we better
ignore these warnings as they don't help us.
Daniel Stenberg [Sun, 22 Mar 2020 11:08:39 +0000 (12:08 +0100)]
test970: improve the test
- send more data to make problems more obvious
- don't start the data with minus, it makes diffs harder to read
- skip the headers in the stdout comparison
- save to a file name to also verify 'filename_effective'
Jay Satiro [Sat, 7 Mar 2020 08:21:33 +0000 (03:21 -0500)]
curl_setup: define _WIN32_WINNT_[OS] symbols
.. because not all Windows build systems have those symbols, and even
those that do may be missing newer symbols (eg the Windows 7 SDK does
not define _WIN32_WINNT_WIN10).
Those symbols are used in build-time logic to decide which API to use
and prior to this change if the symbols were missing it would have
resulted in deprecated API being used when more recent functions were
available (eg GetVersionEx used instead of VerifyVersionInfo).
AC_REQUIRE means "if this macro hasn't been executed already, execute
it". So in a wrapper around AC_RUN_IFELSE, AC_REQUIRE(AC_RUN_IFELSE)
isn't correct at that will execute AC_RUN_IFELSE without any arguments.
With autoconf 2.69 this is basically a no-op, but with autoconf 2.70,
AC_RUN_IFELSE without a default value when cross-compiling is fatal.
The result is that curl with autoconf 2.70 cannot cross-compile.
Rici Lake [Wed, 18 Mar 2020 23:28:19 +0000 (18:28 -0500)]
cmdline: fix handling of OperationConfig linked list (--next)
Ensures that -K/--config inserts new items at the end of the list
instead of overwriting the second item, and that after a -K/--config
option has been parsed, the option parser's view of the current config
is update.
- Implement new option CURLSSLOPT_REVOKE_BEST_EFFORT and
--ssl-revoke-best-effort to allow a "best effort" revocation check.
A best effort revocation check ignores errors that the revocation check
was unable to take place. The reasoning is described in detail below and
discussed further in the PR.
---
When running e.g. with Fiddler, the schannel backend fails with an
unhelpful error message:
Unknown error (0x80092012) - The revocation function was unable
to check revocation for the certificate.
Sadly, many enterprise users who are stuck behind MITM proxies suffer
the very same problem.
This has been discussed in plenty of issues:
https://github.com/curl/curl/issues/3727,
https://github.com/curl/curl/issues/264, for example.
In the latter, a Microsoft Edge developer even made the case that the
common behavior is to ignore issues when a certificate has no recorded
distribution point for revocation lists, or when the server is offline.
This is also known as "best effort" strategy and addresses the Fiddler
issue.
Unfortunately, this strategy was not chosen as the default for schannel
(and is therefore a backend-specific behavior: OpenSSL seems to happily
ignore the offline servers and missing distribution points).
To maintain backward-compatibility, we therefore add a new flag
(`CURLSSLOPT_REVOKE_BEST_EFFORT`) and a new option
(`--ssl-revoke-best-effort`) to select the new behavior.
Due to the many related issues Git for Windows and GitHub Desktop, the
plan is to make this behavior the default in these software packages.
The test 2070 was added to verify this behavior, adapted from 310.
Based-on-work-by: georgeok <giorgos.n.oikonomou@gmail.com> Co-authored-by: Markus Olsson <j.markus.olsson@gmail.com> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Closes https://github.com/curl/curl/pull/4981
Daniel Stenberg [Sat, 8 Feb 2020 23:04:05 +0000 (00:04 +0100)]
test 970: verify --write-out '%{json}'
Makes curl_easy_getinfo() of "variable" numerical content instead return
the number set in the env variable `CURL_TIME`.
Makes curl_version() of "variable" textual content. This guarantees a
stable version string which can be tested against. Environment variable
`CURL_VERSION` defines the content.
Daniel Stenberg [Mon, 16 Mar 2020 08:33:27 +0000 (09:33 +0100)]
tool_operate: fix add_parallel_transfers when more are in queue
Trying to return early from the function if no new transfers were added
would break the "morep" argument and cause issues. This could lead to
zero content "transfers" (within quotes since they would never be
started) when parallel-max was reduced.
Reported-by: Gavin Wong Analyzed-by: Jay Satiro
Fixes #4937
Closes #5112