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5 commits

Author SHA1 Message Date
Junio C Hamano 646ca89558 Merge branch 'jk/http-test-cgipassauth-unavailable-in-older-apache'
We started unconditionally testing with CGIPassAuth directive but
it is unavailable in older Apache that ships with CentOS 7 that has
about a year of shelf-life still left.  The test has conditionally
been disabled when running with an ancient Apache.  This was a fix
for a recent regression caught before the release, so no need to
mention it in the release notes.

* jk/http-test-cgipassauth-unavailable-in-older-apache:
  t/lib-httpd: make CGIPassAuth support conditional
2023-05-19 09:27:07 -07:00
Jeff King eb1c42da8e t/lib-httpd: make CGIPassAuth support conditional
Commit 988aad99b4 (t5563: add tests for basic and anoymous HTTP access,
2023-02-27) added tests that require Apache to support the CGIPassAuth
directive, which was added in Apache 2.4.13. This is fairly old (~8
years), but recent enough that we still encounter it in the wild (e.g.,
RHEL/CentOS 7, which is not EOL until June 2024).

We can live with skipping the new tests on such a platform. But
unfortunately, since the directive is used unconditionally in our
apache.conf, it means the web server fails to start entirely, and we
cannot run other HTTP tests at all (e.g., the basic ones in t5551).

We can fix that by making the config conditional, and only triggering it
for t5563. That solves the problem for t5551 (which then ignores the
directive entirely). For t5563, we'd see apache complain in start_httpd;
with the default setting of GIT_TEST_HTTPD, we'd then skip the whole
script.

But that leaves one small problem: people may set GIT_TEST_HTTPD=1
explicitly, which instructs the tests to fail (rather than skip) when we
can't start the webserver (to avoid accidentally missing some tests).

This could be worked around by having the user manually set
GIT_SKIP_TESTS on a platform with an older Apache. But we can be a bit
friendlier by doing the version check ourselves and setting an
appropriate prereq. We'll use the (lack of) prereq to then skip the rest
of t5563. In theory we could use the prereq to skip individual tests, but
in practice this whole script depends on it.

Reported-by: Todd Zullinger <tmz@pobox.com>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-05-18 14:29:32 -07:00
Johannes Schindelin 92c7b3d473 t5563: prevent "ambiguous redirect"
When I ran this test using `TEST_SHELL_PATH=/bin/bash` in my Ubuntu
setup (where Bash is at version 5.0.17(1)-release), I was greeted with
this error message:

	./test-lib.sh: line 1072: $CHALLENGE: ambiguous redirect

This commit fixes that error by quoting the `CHALLENGE` variable (which
has as value a path containing spaces), and by avoiding to cuddle the
empty string parameter in the `printf` call with the redirect character
(in fact, the `printf ''>$CHALLENGE` is removed because the next line
overwrites the file anyway because it _also_ uses a single `>` to
redirect the output).

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-03-31 08:50:30 -07:00
Matthew John Cheetham 5f2117b24f credential: add WWW-Authenticate header to cred requests
Add the value of the WWW-Authenticate response header to credential
requests. Credential helpers that understand and support HTTP
authentication and authorization can use this standard header (RFC 2616
Section 14.47 [1]) to generate valid credentials.

WWW-Authenticate headers can contain information pertaining to the
authority, authentication mechanism, or extra parameters/scopes that are
required.

The current I/O format for credential helpers only allows for unique
names for properties/attributes, so in order to transmit multiple header
values (with a specific order) we introduce a new convention whereby a
C-style array syntax is used in the property name to denote multiple
ordered values for the same property.

In this case we send multiple `wwwauth[]` properties where the order
that the repeated attributes appear in the conversation reflects the
order that the WWW-Authenticate headers appeared in the HTTP response.

Add a set of tests to exercise the HTTP authentication header parsing
and the interop with credential helpers. Credential helpers will receive
WWW-Authenticate information in credential requests.

[1] https://datatracker.ietf.org/doc/html/rfc2616#section-14.47

Signed-off-by: Matthew John Cheetham <mjcheetham@outlook.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-27 10:40:40 -08:00
Matthew John Cheetham 988aad99b4 t5563: add tests for basic and anoymous HTTP access
Add a test showing simple anoymous HTTP access to an unprotected
repository, that results in no credential helper invocations.
Also add a test demonstrating simple basic authentication with
simple credential helper support.

Leverage a no-parsed headers (NPH) CGI script so that we can directly
control the HTTP responses to simulate a multitude of good, bad and ugly
remote server implementations around auth.

Signed-off-by: Matthew John Cheetham <mjcheetham@outlook.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-02-27 10:40:40 -08:00