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.
Fixes#5181Closes#5183
Currently, the TLS backend used by vquic/ngtcp2.c is selected at compile
time. Therefore OpenSSL support needs to be explicitly disabled.
Signed-off-by: Daiki Ueno <dueno@redhat.com>
Closes#5148
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
Fixes#5166Closes#5168
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.
Closes#5139
Reported by the new script 'scripts/copyright.pl'. The script has a
regex whitelist for the files that don't need copyright headers.
Removed three (mostly usesless) README files from docs/
Closes#5141
.. 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).
Reported-by: FuccDucc@users.noreply.github.com
Probably fixes https://github.com/curl/curl/issues/4995
Closes https://github.com/curl/curl/pull/5057
Prior to this change in libcurl debug builds http2 stream closure was
erroneously referred to as connection closure.
Before:
* nread <= 0, server closed connection, bailing
After:
* nread == 0, stream closed, bailing
Closes https://github.com/curl/curl/pull/5118
- 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
- If an easy handle is owned by a multi different from the one specified
then return CURLM_BAD_EASY_HANDLE.
Prior to this change I assume user error could cause corruption.
Closes https://github.com/curl/curl/pull/5116
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.
Assisted-by: Mathias Gumz
This commit adds support to generate JSON via the writeout feature:
-w "%{json}"
It leverages the existing infrastructure as much as possible. Thus,
generating the JSON on STDERR is possible by:
-w "%{stderr}%{json}"
This implements a variant of
https://github.com/curl/curl/wiki/JSON#--write-out-json.
Closes#4870
When libcurl retries a connection due to it being "seemingly dead" or by
REFUSED_STREAM, it will now only do it up five times before giving up,
to avoid never-ending loops.
Reported-by: Dima Tisnek
Bug: https://curl.haxx.se/mail/lib-2020-03/0044.htmlCloses#5074
Make sure each separate index in connn->tempaddr[] is used for a fixed
family (and only that family) during the connection process.
If family one takes a long time and family two fails immediately, the
previous logic could misbehave and retry the same family two address
repeatedly.
Reported-by: Paul Vixie
Reported-by: Jay Satiro
Fixes#5083Fixes#4954Closes#5089
- Ignore CURLE_NOT_BUILT_IN errors returned by c-ares functions in
curl_easy_duphandle.
Prior to this change if c-ares was used as the resolver backend and
either it was too old or libcurl was built without IPv6 support then
some of our resolver functions could return CURLE_NOT_BUILT_IN to
curl_easy_duphandle causing it to fail.
Caused by c8f086b which shipped in 7.69.1.
Reported-by: Karl Chen
Fixes https://github.com/curl/curl/issues/5097
Closes https://github.com/curl/curl/pull/5100
1. The socks4 state machine was broken in the host resolving phase
2. The code now insists on IPv4-only when using SOCKS4 as the protocol
only supports that.
Regression from #4907 and 4a4b63d, shipped in 7.69.0
Reported-by: amishmm on github
Bug: https://github.com/curl/curl/issues/5053#issuecomment-596191594Closes#5061
