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git/t/t5551-http-fetch-smart.sh

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test smart http fetch and push The top level directory "/smart/" of the test Apache server is mapped through our git-http-backend CGI, but uses the same underlying repository space as the server's document root. This is the most simple installation possible. Server logs are checked to verify the client has accessed only the smart URLs during the test. During fetch testing the headers are also logged from libcurl to ensure we are making a reasonably sane HTTP request, and getting back reasonably sane response headers from the CGI. When validating the request headers used during smart fetch we munge away the actual Content-Length and replace it with the placeholder "xxx". This avoids unnecessary varability in the test caused by an unrelated change in the requested capabilities in the first want line of the request. However, we still want to look for and verify that Content-Length was used, because smaller payloads should be using Content-Length and not "Transfer-Encoding: chunked". When validating the server response headers we must discard both Content-Length and Transfer-Encoding, as Apache2 can use either format to return our response. During development of this test I observed Apache returning both forms, depending on when the processes got CPU time. If our CGI returned the pack data quickly, Apache just buffered the whole thing and returned a Content-Length. If our CGI took just a bit too long to complete, Apache flushed its buffer and instead used "Transfer-Encoding: chunked". Signed-off-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-10-31 00:47:47 +00:00
#!/bin/sh
test_description='test smart fetching over http via http-backend'
. ./test-lib.sh
. "$TEST_DIRECTORY"/lib-httpd.sh
start_httpd
test_expect_success 'setup repository' '
t5551: do not assume the "matching" push is the default Signed-off-by: Brian Gernhardt <brian@gernhardtsoftware.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-16 02:05:07 +00:00
git config push.default matching &&
test smart http fetch and push The top level directory "/smart/" of the test Apache server is mapped through our git-http-backend CGI, but uses the same underlying repository space as the server's document root. This is the most simple installation possible. Server logs are checked to verify the client has accessed only the smart URLs during the test. During fetch testing the headers are also logged from libcurl to ensure we are making a reasonably sane HTTP request, and getting back reasonably sane response headers from the CGI. When validating the request headers used during smart fetch we munge away the actual Content-Length and replace it with the placeholder "xxx". This avoids unnecessary varability in the test caused by an unrelated change in the requested capabilities in the first want line of the request. However, we still want to look for and verify that Content-Length was used, because smaller payloads should be using Content-Length and not "Transfer-Encoding: chunked". When validating the server response headers we must discard both Content-Length and Transfer-Encoding, as Apache2 can use either format to return our response. During development of this test I observed Apache returning both forms, depending on when the processes got CPU time. If our CGI returned the pack data quickly, Apache just buffered the whole thing and returned a Content-Length. If our CGI took just a bit too long to complete, Apache flushed its buffer and instead used "Transfer-Encoding: chunked". Signed-off-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-10-31 00:47:47 +00:00
echo content >file &&
git add file &&
git commit -m one
'
test_expect_success 'create http-accessible bare repository' '
mkdir "$HTTPD_DOCUMENT_ROOT_PATH/repo.git" &&
(cd "$HTTPD_DOCUMENT_ROOT_PATH/repo.git" &&
git --bare init
) &&
git remote add public "$HTTPD_DOCUMENT_ROOT_PATH/repo.git" &&
git push public master:master
'
t: test basic smart-http authentication We do not currently test authentication over smart-http at all. In theory, it should work exactly as it does for dumb http (which we do test). It does indeed work for these simple tests, but this patch lays the groundwork for more complex tests in future patches. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-08-27 13:25:36 +00:00
setup_askpass_helper
test smart http fetch and push The top level directory "/smart/" of the test Apache server is mapped through our git-http-backend CGI, but uses the same underlying repository space as the server's document root. This is the most simple installation possible. Server logs are checked to verify the client has accessed only the smart URLs during the test. During fetch testing the headers are also logged from libcurl to ensure we are making a reasonably sane HTTP request, and getting back reasonably sane response headers from the CGI. When validating the request headers used during smart fetch we munge away the actual Content-Length and replace it with the placeholder "xxx". This avoids unnecessary varability in the test caused by an unrelated change in the requested capabilities in the first want line of the request. However, we still want to look for and verify that Content-Length was used, because smaller payloads should be using Content-Length and not "Transfer-Encoding: chunked". When validating the server response headers we must discard both Content-Length and Transfer-Encoding, as Apache2 can use either format to return our response. During development of this test I observed Apache returning both forms, depending on when the processes got CPU time. If our CGI returned the pack data quickly, Apache just buffered the whole thing and returned a Content-Length. If our CGI took just a bit too long to complete, Apache flushed its buffer and instead used "Transfer-Encoding: chunked". Signed-off-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-10-31 00:47:47 +00:00
test_expect_success 'clone http repository' '
t5551: move setup code inside test_expect blocks Move setup code inside test_expect blocks, to catch unexpected failures in the setup steps, and bring the test scripts in line with our modern test style. Suggested-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-09-17 21:46:27 +00:00
cat >exp <<-\EOF &&
> GET /smart/repo.git/info/refs?service=git-upload-pack HTTP/1.1
> Accept: */*
> Accept-Encoding: ENCODINGS
> Pragma: no-cache
< HTTP/1.1 200 OK
< Pragma: no-cache
< Cache-Control: no-cache, max-age=0, must-revalidate
< Content-Type: application/x-git-upload-pack-advertisement
> POST /smart/repo.git/git-upload-pack HTTP/1.1
> Accept-Encoding: ENCODINGS
> Content-Type: application/x-git-upload-pack-request
> Accept: application/x-git-upload-pack-result
> Content-Length: xxx
< HTTP/1.1 200 OK
< Pragma: no-cache
< Cache-Control: no-cache, max-age=0, must-revalidate
< Content-Type: application/x-git-upload-pack-result
EOF
tests: define GIT_TEST_PROTOCOL_VERSION Define a GIT_TEST_PROTOCOL_VERSION environment variable meant to be used from tests. When set, this ensures protocol.version is at least the given value, allowing the entire test suite to be run as if this configuration is in place for all repositories. As of this patch, all tests pass whether GIT_TEST_PROTOCOL_VERSION is unset or set to 0. Some tests fail when GIT_TEST_PROTOCOL_VERSION is set to 1 or 2, but this will be dealt with in subsequent patches. This is based on work by Ævar Arnfjörð Bjarmason. Signed-off-by: Jonathan Tan <jonathantanmy@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-02-25 21:54:06 +00:00
GIT_TRACE_CURL=true GIT_TEST_PROTOCOL_VERSION= \
git clone --quiet $HTTPD_URL/smart/repo.git clone 2>err &&
test smart http fetch and push The top level directory "/smart/" of the test Apache server is mapped through our git-http-backend CGI, but uses the same underlying repository space as the server's document root. This is the most simple installation possible. Server logs are checked to verify the client has accessed only the smart URLs during the test. During fetch testing the headers are also logged from libcurl to ensure we are making a reasonably sane HTTP request, and getting back reasonably sane response headers from the CGI. When validating the request headers used during smart fetch we munge away the actual Content-Length and replace it with the placeholder "xxx". This avoids unnecessary varability in the test caused by an unrelated change in the requested capabilities in the first want line of the request. However, we still want to look for and verify that Content-Length was used, because smaller payloads should be using Content-Length and not "Transfer-Encoding: chunked". When validating the server response headers we must discard both Content-Length and Transfer-Encoding, as Apache2 can use either format to return our response. During development of this test I observed Apache returning both forms, depending on when the processes got CPU time. If our CGI returned the pack data quickly, Apache just buffered the whole thing and returned a Content-Length. If our CGI took just a bit too long to complete, Apache flushed its buffer and instead used "Transfer-Encoding: chunked". Signed-off-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-10-31 00:47:47 +00:00
test_cmp file clone/file &&
tr '\''\015'\'' Q <err |
sed -e "
s/Q\$//
/^[*] /d
t5551-http-fetch-smart.sh: use the GIT_TRACE_CURL environment var Use the new GIT_TRACE_CURL environment variable instead of the deprecated GIT_CURL_VERBOSE. Signed-off-by: Elia Pinto <gitter.spiros@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-09-05 10:24:44 +00:00
/^== Info:/d
/^=> Send header, /d
/^=> Send header:$/d
/^<= Recv header, /d
/^<= Recv header:$/d
s/=> Send header: //
s/= Recv header://
/^<= Recv data/d
/^=> Send data/d
t5551-http-fetch: Work around some libcurl versions Some versions of libcurl report their output when GIT_CURL_VERBOSE is set differently than other versions do. At least one variant (version unknown but likely pre-7.18.1) reports the POST payload to stderr, and omits the blank line after each HTTP request/response. We clip these lines out of the stderr output now before doing the compare, so we aren't surprised by this trivial difference. Reported-by: Tarmigan <tarmigan+git@gmail.com> Signed-off-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-11-09 18:10:36 +00:00
/^$/d
/^< $/d
test smart http fetch and push The top level directory "/smart/" of the test Apache server is mapped through our git-http-backend CGI, but uses the same underlying repository space as the server's document root. This is the most simple installation possible. Server logs are checked to verify the client has accessed only the smart URLs during the test. During fetch testing the headers are also logged from libcurl to ensure we are making a reasonably sane HTTP request, and getting back reasonably sane response headers from the CGI. When validating the request headers used during smart fetch we munge away the actual Content-Length and replace it with the placeholder "xxx". This avoids unnecessary varability in the test caused by an unrelated change in the requested capabilities in the first want line of the request. However, we still want to look for and verify that Content-Length was used, because smaller payloads should be using Content-Length and not "Transfer-Encoding: chunked". When validating the server response headers we must discard both Content-Length and Transfer-Encoding, as Apache2 can use either format to return our response. During development of this test I observed Apache returning both forms, depending on when the processes got CPU time. If our CGI returned the pack data quickly, Apache just buffered the whole thing and returned a Content-Length. If our CGI took just a bit too long to complete, Apache flushed its buffer and instead used "Transfer-Encoding: chunked". Signed-off-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-10-31 00:47:47 +00:00
/^[^><]/{
s/^/> /
}
/^> User-Agent: /d
/^> Host: /d
t5551-http-fetch: Work around broken Accept header in libcurl Unfortunately at least one version of libcurl has a bug causing it to include "Accept: */*" in the same POST request where we have already asked for "Accept: application/x-git-upload-pack-response". This is a bug in libcurl, not Git, or our test vector. The application has explicitly asked the server for a single content type, but libcurl has mistakenly also told the server the client application will accept */*, which is any content type. Based on the libcurl change log, this "Accept: */*" header bug may have been fixed in version 7.18.1 released March 30, 2008: http://curl.haxx.se/changes.html#7_18_1 Rather than require users to upgrade libcurl we change the test vector to trim this line out of the 2nd request. Reported-by: Tarmigan <tarmigan+git@gmail.com> Signed-off-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-11-09 18:10:37 +00:00
/^> POST /,$ {
/^> Accept: [*]\\/[*]/d
}
test smart http fetch and push The top level directory "/smart/" of the test Apache server is mapped through our git-http-backend CGI, but uses the same underlying repository space as the server's document root. This is the most simple installation possible. Server logs are checked to verify the client has accessed only the smart URLs during the test. During fetch testing the headers are also logged from libcurl to ensure we are making a reasonably sane HTTP request, and getting back reasonably sane response headers from the CGI. When validating the request headers used during smart fetch we munge away the actual Content-Length and replace it with the placeholder "xxx". This avoids unnecessary varability in the test caused by an unrelated change in the requested capabilities in the first want line of the request. However, we still want to look for and verify that Content-Length was used, because smaller payloads should be using Content-Length and not "Transfer-Encoding: chunked". When validating the server response headers we must discard both Content-Length and Transfer-Encoding, as Apache2 can use either format to return our response. During development of this test I observed Apache returning both forms, depending on when the processes got CPU time. If our CGI returned the pack data quickly, Apache just buffered the whole thing and returned a Content-Length. If our CGI took just a bit too long to complete, Apache flushed its buffer and instead used "Transfer-Encoding: chunked". Signed-off-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-10-31 00:47:47 +00:00
s/^> Content-Length: .*/> Content-Length: xxx/
t5551-http-fetch: Work around some libcurl versions Some versions of libcurl report their output when GIT_CURL_VERBOSE is set differently than other versions do. At least one variant (version unknown but likely pre-7.18.1) reports the POST payload to stderr, and omits the blank line after each HTTP request/response. We clip these lines out of the stderr output now before doing the compare, so we aren't surprised by this trivial difference. Reported-by: Tarmigan <tarmigan+git@gmail.com> Signed-off-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-11-09 18:10:36 +00:00
/^> 00..want /d
/^> 00.*done/d
test smart http fetch and push The top level directory "/smart/" of the test Apache server is mapped through our git-http-backend CGI, but uses the same underlying repository space as the server's document root. This is the most simple installation possible. Server logs are checked to verify the client has accessed only the smart URLs during the test. During fetch testing the headers are also logged from libcurl to ensure we are making a reasonably sane HTTP request, and getting back reasonably sane response headers from the CGI. When validating the request headers used during smart fetch we munge away the actual Content-Length and replace it with the placeholder "xxx". This avoids unnecessary varability in the test caused by an unrelated change in the requested capabilities in the first want line of the request. However, we still want to look for and verify that Content-Length was used, because smaller payloads should be using Content-Length and not "Transfer-Encoding: chunked". When validating the server response headers we must discard both Content-Length and Transfer-Encoding, as Apache2 can use either format to return our response. During development of this test I observed Apache returning both forms, depending on when the processes got CPU time. If our CGI returned the pack data quickly, Apache just buffered the whole thing and returned a Content-Length. If our CGI took just a bit too long to complete, Apache flushed its buffer and instead used "Transfer-Encoding: chunked". Signed-off-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-10-31 00:47:47 +00:00
/^< Server: /d
/^< Expires: /d
/^< Date: /d
/^< Content-Length: /d
/^< Transfer-Encoding: /d
remote-curl: accept all encodings supported by curl Configure curl to accept all encodings which curl supports instead of only accepting gzip responses. This fixes an issue when using an installation of curl which is built without the "zlib" feature. Since aa90b9697 (Enable info/refs gzip decompression in HTTP client, 2012-09-19) we end up requesting "gzip" encoding anyway despite libcurl not being able to decode it. Worse, instead of getting a clear error message indicating so, we end up falling back to "dumb" http, producing a confusing and difficult to debug result. Since curl doesn't do any checking to verify that it supports the a requested encoding, instead set the curl option `CURLOPT_ENCODING` with an empty string indicating that curl should send an "Accept-Encoding" header containing only the encodings supported by curl. Reported-by: Anton Golubev <anton.golubev@gmail.com> Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-22 18:42:03 +00:00
" >actual &&
tests: fix protocol version for overspecifications These tests are also marked with a NEEDSWORK comment. Signed-off-by: Jonathan Tan <jonathantanmy@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-02-25 21:54:12 +00:00
# NEEDSWORK: If the overspecification of the expected result is reduced, we
# might be able to run this test in all protocol versions.
if test -z "$GIT_TEST_PROTOCOL_VERSION"
then
sed -e "s/^> Accept-Encoding: .*/> Accept-Encoding: ENCODINGS/" \
actual >actual.smudged &&
test_cmp exp actual.smudged &&
grep "Accept-Encoding:.*gzip" actual >actual.gzip &&
test_line_count = 2 actual.gzip
fi
test smart http fetch and push The top level directory "/smart/" of the test Apache server is mapped through our git-http-backend CGI, but uses the same underlying repository space as the server's document root. This is the most simple installation possible. Server logs are checked to verify the client has accessed only the smart URLs during the test. During fetch testing the headers are also logged from libcurl to ensure we are making a reasonably sane HTTP request, and getting back reasonably sane response headers from the CGI. When validating the request headers used during smart fetch we munge away the actual Content-Length and replace it with the placeholder "xxx". This avoids unnecessary varability in the test caused by an unrelated change in the requested capabilities in the first want line of the request. However, we still want to look for and verify that Content-Length was used, because smaller payloads should be using Content-Length and not "Transfer-Encoding: chunked". When validating the server response headers we must discard both Content-Length and Transfer-Encoding, as Apache2 can use either format to return our response. During development of this test I observed Apache returning both forms, depending on when the processes got CPU time. If our CGI returned the pack data quickly, Apache just buffered the whole thing and returned a Content-Length. If our CGI took just a bit too long to complete, Apache flushed its buffer and instead used "Transfer-Encoding: chunked". Signed-off-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-10-31 00:47:47 +00:00
'
test_expect_success 'fetch changes via http' '
echo content >>file &&
git commit -a -m two &&
t: fix trivial &&-chain breakage These are tests which are missing a link in their &&-chain, but during a setup phase. We may fail to notice failure in commands that build the test environment, but these are typically not expected to fail at all (but it's still good to double-check that our test environment is what we expect). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-03-20 10:07:15 +00:00
git push public &&
test smart http fetch and push The top level directory "/smart/" of the test Apache server is mapped through our git-http-backend CGI, but uses the same underlying repository space as the server's document root. This is the most simple installation possible. Server logs are checked to verify the client has accessed only the smart URLs during the test. During fetch testing the headers are also logged from libcurl to ensure we are making a reasonably sane HTTP request, and getting back reasonably sane response headers from the CGI. When validating the request headers used during smart fetch we munge away the actual Content-Length and replace it with the placeholder "xxx". This avoids unnecessary varability in the test caused by an unrelated change in the requested capabilities in the first want line of the request. However, we still want to look for and verify that Content-Length was used, because smaller payloads should be using Content-Length and not "Transfer-Encoding: chunked". When validating the server response headers we must discard both Content-Length and Transfer-Encoding, as Apache2 can use either format to return our response. During development of this test I observed Apache returning both forms, depending on when the processes got CPU time. If our CGI returned the pack data quickly, Apache just buffered the whole thing and returned a Content-Length. If our CGI took just a bit too long to complete, Apache flushed its buffer and instead used "Transfer-Encoding: chunked". Signed-off-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-10-31 00:47:47 +00:00
(cd clone && git pull) &&
test_cmp file clone/file
'
test_expect_success 'used upload-pack service' '
t5551: move setup code inside test_expect blocks Move setup code inside test_expect blocks, to catch unexpected failures in the setup steps, and bring the test scripts in line with our modern test style. Suggested-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-09-17 21:46:27 +00:00
cat >exp <<-\EOF &&
GET /smart/repo.git/info/refs?service=git-upload-pack HTTP/1.1 200
POST /smart/repo.git/git-upload-pack HTTP/1.1 200
GET /smart/repo.git/info/refs?service=git-upload-pack HTTP/1.1 200
POST /smart/repo.git/git-upload-pack HTTP/1.1 200
EOF
tests: fix protocol version for overspecifications These tests are also marked with a NEEDSWORK comment. Signed-off-by: Jonathan Tan <jonathantanmy@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-02-25 21:54:12 +00:00
# NEEDSWORK: If the overspecification of the expected result is reduced, we
# might be able to run this test in all protocol versions.
if test -z "$GIT_TEST_PROTOCOL_VERSION"
then
check_access_log exp
fi
test smart http fetch and push The top level directory "/smart/" of the test Apache server is mapped through our git-http-backend CGI, but uses the same underlying repository space as the server's document root. This is the most simple installation possible. Server logs are checked to verify the client has accessed only the smart URLs during the test. During fetch testing the headers are also logged from libcurl to ensure we are making a reasonably sane HTTP request, and getting back reasonably sane response headers from the CGI. When validating the request headers used during smart fetch we munge away the actual Content-Length and replace it with the placeholder "xxx". This avoids unnecessary varability in the test caused by an unrelated change in the requested capabilities in the first want line of the request. However, we still want to look for and verify that Content-Length was used, because smaller payloads should be using Content-Length and not "Transfer-Encoding: chunked". When validating the server response headers we must discard both Content-Length and Transfer-Encoding, as Apache2 can use either format to return our response. During development of this test I observed Apache returning both forms, depending on when the processes got CPU time. If our CGI returned the pack data quickly, Apache just buffered the whole thing and returned a Content-Length. If our CGI took just a bit too long to complete, Apache flushed its buffer and instead used "Transfer-Encoding: chunked". Signed-off-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-10-31 00:47:47 +00:00
'
smart-http: Don't change POST to GET when following redirect For a long time (29508e1 "Isolate shared HTTP request functionality", Fri Nov 18 11:02:58 2005), we've followed HTTP redirects with CURLOPT_FOLLOWLOCATION. However, when the remote HTTP server returns a redirect the default libcurl action is to change a POST request into a GET request while following the redirect, but the remote http backend does not expect that. Fix this by telling libcurl to always keep the request as type POST with CURLOPT_POSTREDIR. For users of libcurl older than 7.19.1, use CURLOPT_POST301 instead, which only follows 301s instead of both 301s and 302s. Signed-off-by: Andreas Schwab <schwab@linux-m68k.org> Signed-off-by: Tay Ray Chuan <rctay89@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-09-25 04:20:35 +00:00
test_expect_success 'follow redirects (301)' '
git clone $HTTPD_URL/smart-redir-perm/repo.git --quiet repo-p
'
test_expect_success 'follow redirects (302)' '
git clone $HTTPD_URL/smart-redir-temp/repo.git --quiet repo-t
'
remote-curl: rewrite base url from info/refs redirects For efficiency and security reasons, an earlier commit in this series taught http_get_* to re-write the base url based on redirections we saw while making a specific request. This commit wires that option into the info/refs request, meaning that a redirect from http://example.com/foo.git/info/refs to https://example.com/bar.git/info/refs will behave as if "https://example.com/bar.git" had been provided to git in the first place. The tests bear some explanation. We introduce two new hierearchies into the httpd test config: 1. Requests to /smart-redir-limited will work only for the initial info/refs request, but not any subsequent requests. As a result, we can confirm whether the client is re-rooting its requests after the initial contact, since otherwise it will fail (it will ask for "repo.git/git-upload-pack", which is not redirected). 2. Requests to smart-redir-auth will redirect, and require auth after the redirection. Since we are using the redirected base for further requests, we also update the credential struct, in order not to mislead the user (or credential helpers) about which credential is needed. We can therefore check the GIT_ASKPASS prompts to make sure we are prompting for the new location. Because we have neither multiple servers nor https support in our test setup, we can only redirect between paths, meaning we need to turn on credential.useHttpPath to see the difference. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
2013-09-28 08:35:35 +00:00
test_expect_success 'redirects re-root further requests' '
git clone $HTTPD_URL/smart-redir-limited/repo.git repo-redir-limited
'
http: always update the base URL for redirects If a malicious server redirects the initial ref advertisement, it may be able to leak sha1s from other, unrelated servers that the client has access to. For example, imagine that Alice is a git user, she has access to a private repository on a server hosted by Bob, and Mallory runs a malicious server and wants to find out about Bob's private repository. Mallory asks Alice to clone an unrelated repository from her over HTTP. When Alice's client contacts Mallory's server for the initial ref advertisement, the server issues an HTTP redirect for Bob's server. Alice contacts Bob's server and gets the ref advertisement for the private repository. If there is anything to fetch, she then follows up by asking the server for one or more sha1 objects. But who is the server? If it is still Mallory's server, then Alice will leak the existence of those sha1s to her. Since commit c93c92f30 (http: update base URLs when we see redirects, 2013-09-28), the client usually rewrites the base URL such that all further requests will go to Bob's server. But this is done by textually matching the URL. If we were originally looking for "http://mallory/repo.git/info/refs", and we got pointed at "http://bob/other.git/info/refs", then we know that the right root is "http://bob/other.git". If the redirect appears to change more than just the root, we punt and continue to use the original server. E.g., imagine the redirect adds a URL component that Bob's server will ignore, like "http://bob/other.git/info/refs?dummy=1". We can solve this by aborting in this case rather than silently continuing to use Mallory's server. In addition to protecting from sha1 leakage, it's arguably safer and more sane to refuse a confusing redirect like that in general. For example, part of the motivation in c93c92f30 is avoiding accidentally sending credentials over clear http, just to get a response that says "try again over https". So even in a non-malicious case, we'd prefer to err on the side of caution. The downside is that it's possible this will break a legitimate but complicated server-side redirection scheme. The setup given in the newly added test does work, but it's convoluted enough that we don't need to care about it. A more plausible case would be a server which redirects a request for "info/refs?service=git-upload-pack" to just "info/refs" (because it does not do smart HTTP, and for some reason really dislikes query parameters). Right now we would transparently downgrade to dumb-http, but with this patch, we'd complain (and the user would have to set GIT_SMART_HTTP=0 to fetch). Reported-by: Jann Horn <jannh@google.com> Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-06 18:24:35 +00:00
test_expect_success 're-rooting dies on insane schemes' '
test_must_fail git clone $HTTPD_URL/insane-redir/repo.git insane
'
t: test basic smart-http authentication We do not currently test authentication over smart-http at all. In theory, it should work exactly as it does for dumb http (which we do test). It does indeed work for these simple tests, but this patch lays the groundwork for more complex tests in future patches. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-08-27 13:25:36 +00:00
test_expect_success 'clone from password-protected repository' '
echo two >expect &&
use distinct username/password for http auth tests The httpd server we set up to test git's http client code knows about a single account, in which both the username and password are "user@host" (the unusual use of the "@" here is to verify that we handle the character correctly when URL escaped). This means that we may miss a certain class of errors in which the username and password are mixed up internally by git. We can make our tests more robust by having distinct values for the username and password. In addition to tweaking the server passwd file and the client URL, we must teach the "askpass" harness to accept multiple values. As a bonus, this makes the setup of some tests more obvious; when we are expecting git to ask only about the password, we can seed the username askpass response with a bogus value. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-01-02 07:38:35 +00:00
set_askpass user@host pass@host &&
t: test basic smart-http authentication We do not currently test authentication over smart-http at all. In theory, it should work exactly as it does for dumb http (which we do test). It does indeed work for these simple tests, but this patch lays the groundwork for more complex tests in future patches. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-08-27 13:25:36 +00:00
git clone --bare "$HTTPD_URL/auth/smart/repo.git" smart-auth &&
expect_askpass both user@host &&
git --git-dir=smart-auth log -1 --format=%s >actual &&
test_cmp expect actual
'
t: test http access to "half-auth" repositories Some sites set up http access to repositories such that fetching is anonymous and unauthenticated, but pushing is authenticated. While there are multiple ways to do this, the technique advertised in the git-http-backend manpage is to block access to locations matching "/git-receive-pack$". Let's emulate that advice in our test setup, which makes it clear that this advice does not actually work. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-08-27 13:25:53 +00:00
test_expect_success 'clone from auth-only-for-push repository' '
echo two >expect &&
set_askpass wrong &&
git clone --bare "$HTTPD_URL/auth-push/smart/repo.git" smart-noauth &&
expect_askpass none &&
git --git-dir=smart-noauth log -1 --format=%s >actual &&
test_cmp expect actual
'
remote-curl: retry failed requests for auth even with gzip Commit b81401c taught the post_rpc function to retry the http request after prompting for credentials. However, it did not handle two cases: 1. If we have a large request, we do not retry. That's OK, since we would have sent a probe (with retry) already. 2. If we are gzipping the request, we do not retry. That was considered OK, because the intended use was for push (e.g., listing refs is OK, but actually pushing objects is not), and we never gzip on push. This patch teaches post_rpc to retry even a gzipped request. This has two advantages: 1. It is possible to configure a "half-auth" state for fetching, where the set of refs and their sha1s are advertised, but one cannot actually fetch objects. This is not a recommended configuration, as it leaks some information about what is in the repository (e.g., an attacker can try brute-forcing possible content in your repository and checking whether it matches your branch sha1). However, it can be slightly more convenient, since a no-op fetch will not require a password at all. 2. It future-proofs us should we decide to ever gzip more requests. Signed-off-by: Jeff King <peff@peff.net>
2012-10-31 11:29:16 +00:00
test_expect_success 'clone from auth-only-for-objects repository' '
echo two >expect &&
use distinct username/password for http auth tests The httpd server we set up to test git's http client code knows about a single account, in which both the username and password are "user@host" (the unusual use of the "@" here is to verify that we handle the character correctly when URL escaped). This means that we may miss a certain class of errors in which the username and password are mixed up internally by git. We can make our tests more robust by having distinct values for the username and password. In addition to tweaking the server passwd file and the client URL, we must teach the "askpass" harness to accept multiple values. As a bonus, this makes the setup of some tests more obvious; when we are expecting git to ask only about the password, we can seed the username askpass response with a bogus value. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-01-02 07:38:35 +00:00
set_askpass user@host pass@host &&
remote-curl: retry failed requests for auth even with gzip Commit b81401c taught the post_rpc function to retry the http request after prompting for credentials. However, it did not handle two cases: 1. If we have a large request, we do not retry. That's OK, since we would have sent a probe (with retry) already. 2. If we are gzipping the request, we do not retry. That was considered OK, because the intended use was for push (e.g., listing refs is OK, but actually pushing objects is not), and we never gzip on push. This patch teaches post_rpc to retry even a gzipped request. This has two advantages: 1. It is possible to configure a "half-auth" state for fetching, where the set of refs and their sha1s are advertised, but one cannot actually fetch objects. This is not a recommended configuration, as it leaks some information about what is in the repository (e.g., an attacker can try brute-forcing possible content in your repository and checking whether it matches your branch sha1). However, it can be slightly more convenient, since a no-op fetch will not require a password at all. 2. It future-proofs us should we decide to ever gzip more requests. Signed-off-by: Jeff King <peff@peff.net>
2012-10-31 11:29:16 +00:00
git clone --bare "$HTTPD_URL/auth-fetch/smart/repo.git" half-auth &&
expect_askpass both user@host &&
git --git-dir=half-auth log -1 --format=%s >actual &&
test_cmp expect actual
'
test_expect_success 'no-op half-auth fetch does not require a password' '
set_askpass wrong &&
t5551: mark half-auth no-op fetch test as v0-only When using protocol v0, upload-pack over HTTP permits a "half-auth" configuration in which, at the web server layer, the info/refs path is not protected by authentication but the git-upload-pack path is, so that a user can perform fetches that do not download any objects without authentication, but still needs authentication to download objects. But protocol v2 does not support this, because both ref and pack are obtained from the git-upload-pack path. Mark the test verifying this behavior as protocol v0-only, with a description of what needs to be done to make v2 support this. Signed-off-by: Jonathan Tan <jonathantanmy@google.com> Acked-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-03-22 19:01:39 +00:00
# NEEDSWORK: When using HTTP(S), protocol v0 supports a "half-auth"
# configuration with authentication required only when downloading
# objects and not refs, by having the HTTP server only require
# authentication for the "git-upload-pack" path and not "info/refs".
# This is not possible with protocol v2, since both objects and refs
# are obtained from the "git-upload-pack" path. A solution to this is
# to teach the server and client to be able to inline ls-refs requests
# as an Extra Parameter (see pack-protocol.txt), so that "info/refs"
# can serve refs, just like it does in protocol v0.
GIT_TEST_PROTOCOL_VERSION=0 git --git-dir=half-auth fetch &&
remote-curl: retry failed requests for auth even with gzip Commit b81401c taught the post_rpc function to retry the http request after prompting for credentials. However, it did not handle two cases: 1. If we have a large request, we do not retry. That's OK, since we would have sent a probe (with retry) already. 2. If we are gzipping the request, we do not retry. That was considered OK, because the intended use was for push (e.g., listing refs is OK, but actually pushing objects is not), and we never gzip on push. This patch teaches post_rpc to retry even a gzipped request. This has two advantages: 1. It is possible to configure a "half-auth" state for fetching, where the set of refs and their sha1s are advertised, but one cannot actually fetch objects. This is not a recommended configuration, as it leaks some information about what is in the repository (e.g., an attacker can try brute-forcing possible content in your repository and checking whether it matches your branch sha1). However, it can be slightly more convenient, since a no-op fetch will not require a password at all. 2. It future-proofs us should we decide to ever gzip more requests. Signed-off-by: Jeff King <peff@peff.net>
2012-10-31 11:29:16 +00:00
expect_askpass none
'
remote-curl: rewrite base url from info/refs redirects For efficiency and security reasons, an earlier commit in this series taught http_get_* to re-write the base url based on redirections we saw while making a specific request. This commit wires that option into the info/refs request, meaning that a redirect from http://example.com/foo.git/info/refs to https://example.com/bar.git/info/refs will behave as if "https://example.com/bar.git" had been provided to git in the first place. The tests bear some explanation. We introduce two new hierearchies into the httpd test config: 1. Requests to /smart-redir-limited will work only for the initial info/refs request, but not any subsequent requests. As a result, we can confirm whether the client is re-rooting its requests after the initial contact, since otherwise it will fail (it will ask for "repo.git/git-upload-pack", which is not redirected). 2. Requests to smart-redir-auth will redirect, and require auth after the redirection. Since we are using the redirected base for further requests, we also update the credential struct, in order not to mislead the user (or credential helpers) about which credential is needed. We can therefore check the GIT_ASKPASS prompts to make sure we are prompting for the new location. Because we have neither multiple servers nor https support in our test setup, we can only redirect between paths, meaning we need to turn on credential.useHttpPath to see the difference. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
2013-09-28 08:35:35 +00:00
test_expect_success 'redirects send auth to new location' '
use distinct username/password for http auth tests The httpd server we set up to test git's http client code knows about a single account, in which both the username and password are "user@host" (the unusual use of the "@" here is to verify that we handle the character correctly when URL escaped). This means that we may miss a certain class of errors in which the username and password are mixed up internally by git. We can make our tests more robust by having distinct values for the username and password. In addition to tweaking the server passwd file and the client URL, we must teach the "askpass" harness to accept multiple values. As a bonus, this makes the setup of some tests more obvious; when we are expecting git to ask only about the password, we can seed the username askpass response with a bogus value. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-01-02 07:38:35 +00:00
set_askpass user@host pass@host &&
remote-curl: rewrite base url from info/refs redirects For efficiency and security reasons, an earlier commit in this series taught http_get_* to re-write the base url based on redirections we saw while making a specific request. This commit wires that option into the info/refs request, meaning that a redirect from http://example.com/foo.git/info/refs to https://example.com/bar.git/info/refs will behave as if "https://example.com/bar.git" had been provided to git in the first place. The tests bear some explanation. We introduce two new hierearchies into the httpd test config: 1. Requests to /smart-redir-limited will work only for the initial info/refs request, but not any subsequent requests. As a result, we can confirm whether the client is re-rooting its requests after the initial contact, since otherwise it will fail (it will ask for "repo.git/git-upload-pack", which is not redirected). 2. Requests to smart-redir-auth will redirect, and require auth after the redirection. Since we are using the redirected base for further requests, we also update the credential struct, in order not to mislead the user (or credential helpers) about which credential is needed. We can therefore check the GIT_ASKPASS prompts to make sure we are prompting for the new location. Because we have neither multiple servers nor https support in our test setup, we can only redirect between paths, meaning we need to turn on credential.useHttpPath to see the difference. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
2013-09-28 08:35:35 +00:00
git -c credential.useHttpPath=true \
clone $HTTPD_URL/smart-redir-auth/repo.git repo-redir-auth &&
expect_askpass both user@host auth/smart/repo.git
'
remote-curl: let users turn off smart http Usually there is no need for users to specify whether an http remote is smart or dumb; the protocol is designed so that a single initial request is made, and the client can determine the server's capability from the response. However, some misconfigured dumb-only servers may not like the initial request by a smart client, as it contains a query string. Until recently, commit 703e6e7 worked around this by making a second request. However, that commit was recently reverted due to its side effect of masking the initial request's error code. Since git has had that workaround for several years, we don't know exactly how many such misconfigured servers are out there. The reversion of 703e6e7 assumes they are rare enough not to worry about. Still, that reversion leaves somebody who does run into such a server with no escape hatch at all. Let's give them an environment variable they can tweak to perform the "dumb" request. This is intentionally not a documented interface. It's overly simple and is really there for debugging in case somebody does complain about git not working with their server. A real user-facing interface would entail a per-remote or per-URL config variable. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-09-20 21:30:58 +00:00
test_expect_success 'disable dumb http on server' '
git --git-dir="$HTTPD_DOCUMENT_ROOT_PATH/repo.git" \
config http.getanyfile false
'
test_expect_success 'GIT_SMART_HTTP can disable smart http' '
(GIT_SMART_HTTP=0 &&
export GIT_SMART_HTTP &&
cd clone &&
test_must_fail git fetch)
'
Verify Content-Type from smart HTTP servers Before parsing a suspected smart-HTTP response verify the returned Content-Type matches the standard. This protects a client from attempting to process a payload that smells like a smart-HTTP server response. JGit has been doing this check on all responses since the dawn of time. I mistakenly failed to include it in git-core when smart HTTP was introduced. At the time I didn't know how to get the Content-Type from libcurl. I punted, meant to circle back and fix this, and just plain forgot about it. Signed-off-by: Shawn Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-31 21:02:07 +00:00
test_expect_success 'invalid Content-Type rejected' '
t: fix severe &&-chain breakage These are tests which are missing a link in their &&-chain, in a location which causes a significant portion of the test to be missed (e.g., the test effectively does nothing, or consists of a long string of actions and output comparisons, and we throw away the exit code of at least one part of the string). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-03-20 10:06:15 +00:00
test_must_fail git clone $HTTPD_URL/broken_smart/repo.git 2>actual &&
t5551: fix expected error output We should probably get rid of the check of message instead, but in the meantime this should do. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-05 00:21:42 +00:00
grep "not valid:" actual
Verify Content-Type from smart HTTP servers Before parsing a suspected smart-HTTP response verify the returned Content-Type matches the standard. This protects a client from attempting to process a payload that smells like a smart-HTTP server response. JGit has been doing this check on all responses since the dawn of time. I mistakenly failed to include it in git-core when smart HTTP was introduced. At the time I didn't know how to get the Content-Type from libcurl. I punted, meant to circle back and fix this, and just plain forgot about it. Signed-off-by: Shawn Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-31 21:02:07 +00:00
'
http-backend: respect GIT_NAMESPACE with dumb clients Filter the list of refs returned via the dumb HTTP protocol according to the active namespace, consistent with other clients of the upload-pack service. Signed-off-by: John Koleszar <jkoleszar@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-10 00:55:08 +00:00
test_expect_success 'create namespaced refs' '
test_commit namespaced &&
git push public HEAD:refs/namespaces/ns/refs/heads/master &&
git --git-dir="$HTTPD_DOCUMENT_ROOT_PATH/repo.git" \
symbolic-ref refs/namespaces/ns/HEAD refs/namespaces/ns/refs/heads/master
'
test_expect_success 'smart clone respects namespace' '
git clone "$HTTPD_URL/smart_namespace/repo.git" ns-smart &&
echo namespaced >expect &&
git --git-dir=ns-smart/.git log -1 --format=%s >actual &&
test_cmp expect actual
'
test_expect_success 'dumb clone via http-backend respects namespace' '
git --git-dir="$HTTPD_DOCUMENT_ROOT_PATH/repo.git" \
config http.getanyfile true &&
GIT_SMART_HTTP=0 git clone \
"$HTTPD_URL/smart_namespace/repo.git" ns-dumb &&
echo namespaced >expect &&
git --git-dir=ns-dumb/.git log -1 --format=%s >actual &&
test_cmp expect actual
'
http: add http.savecookies option to write out HTTP cookies HTTP servers may send Set-Cookie headers in a response and expect them to be set on subsequent requests. By default, libcurl behavior is to store such cookies in memory and reuse them across requests within a single session. However, it may also make sense, depending on the server and the cookies, to store them across sessions. Provide users an option to enable this behavior, writing cookies out to the same file specified in http.cookiefile. Signed-off-by: Dave Borowitz <dborowitz@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-07-23 22:40:17 +00:00
test_expect_success 'cookies stored in http.cookiefile when http.savecookies set' '
t5551: move setup code inside test_expect blocks Move setup code inside test_expect blocks, to catch unexpected failures in the setup steps, and bring the test scripts in line with our modern test style. Suggested-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-09-17 21:46:27 +00:00
cat >cookies.txt <<-\EOF &&
127.0.0.1 FALSE /smart_cookies/ FALSE 0 othername othervalue
EOF
t5551: compare sorted cookies files In t5551 we check that we save cookies correctly to a file when http.cookiefile and http.savecookies are set. To do so we create an expect file that expects the cookies in a certain order. However after e2ef8d6fa ("cookies: support creation-time attribute for cookies", 2018-08-28) in curl.git (released in curl 7.61.1) that order changed. We document the file format as "Netscape/Mozilla cookie file format (see curl(1))", so any format produced by libcurl should be fine here. Sort the files, to be agnostic to the order of the cookies, and make the test pass with both curl versions > 7.61.1 and earlier curl versions. Reported-by: Todd Zullinger <tmz@pobox.com> Helped-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-09-17 21:46:28 +00:00
sort >expect_cookies.txt <<-\EOF &&
t5551: move setup code inside test_expect blocks Move setup code inside test_expect blocks, to catch unexpected failures in the setup steps, and bring the test scripts in line with our modern test style. Suggested-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-09-17 21:46:27 +00:00
127.0.0.1 FALSE /smart_cookies/ FALSE 0 othername othervalue
127.0.0.1 FALSE /smart_cookies/repo.git/info/ FALSE 0 name value
EOF
http: add http.savecookies option to write out HTTP cookies HTTP servers may send Set-Cookie headers in a response and expect them to be set on subsequent requests. By default, libcurl behavior is to store such cookies in memory and reuse them across requests within a single session. However, it may also make sense, depending on the server and the cookies, to store them across sessions. Provide users an option to enable this behavior, writing cookies out to the same file specified in http.cookiefile. Signed-off-by: Dave Borowitz <dborowitz@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-07-23 22:40:17 +00:00
git config http.cookiefile cookies.txt &&
git config http.savecookies true &&
git ls-remote $HTTPD_URL/smart_cookies/repo.git master &&
tests: fix protocol version for overspecifications These tests are also marked with a NEEDSWORK comment. Signed-off-by: Jonathan Tan <jonathantanmy@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-02-25 21:54:12 +00:00
# NEEDSWORK: If the overspecification of the expected result is reduced, we
# might be able to run this test in all protocol versions.
if test -z "$GIT_TEST_PROTOCOL_VERSION"
then
tail -3 cookies.txt | sort >cookies_tail.txt &&
test_cmp expect_cookies.txt cookies_tail.txt
fi
http: add http.savecookies option to write out HTTP cookies HTTP servers may send Set-Cookie headers in a response and expect them to be set on subsequent requests. By default, libcurl behavior is to store such cookies in memory and reuse them across requests within a single session. However, it may also make sense, depending on the server and the cookies, to store them across sessions. Provide users an option to enable this behavior, writing cookies out to the same file specified in http.cookiefile. Signed-off-by: Dave Borowitz <dborowitz@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-07-23 22:40:17 +00:00
'
upload-pack: fix transfer.hiderefs over smart-http When upload-pack advertises the refs (either for a normal, non-stateless request, or for the initial contact in a stateless one), we call for_each_ref with the send_ref function as its callback. send_ref, in turn, calls mark_our_ref, which checks whether the ref is hidden, and sets OUR_REF or HIDDEN_REF on the object as appropriate. If it is hidden, mark_our_ref also returns "1" to signal send_ref that the ref should not be advertised. If we are not advertising refs, (i.e., the follow-up invocation by an http client to send its "want" lines), we use mark_our_ref directly as a callback to for_each_ref. Its marking does the right thing, but when it then returns "1" to for_each_ref, the latter interprets this as an error and stops iterating. As a result, we skip marking all of the refs that come lexicographically after it. Any "want" lines from the client asking for those objects will fail, as they were not properly marked with OUR_REF. To solve this, we introduce a wrapper callback around mark_our_ref which always returns 0 (even if the ref is hidden, we want to keep iterating). We also tweak the signature of mark_our_ref to exclude unnecessary parameters that were present only to conform to the callback interface. This should make it less likely for somebody to accidentally use it as a callback in the future. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-03-13 04:42:12 +00:00
test_expect_success 'transfer.hiderefs works over smart-http' '
test_commit hidden &&
test_commit visible &&
git push public HEAD^:refs/heads/a HEAD:refs/heads/b &&
git --git-dir="$HTTPD_DOCUMENT_ROOT_PATH/repo.git" \
config transfer.hiderefs refs/heads/a &&
git clone --bare "$HTTPD_URL/smart/repo.git" hidden.git &&
test_must_fail git -C hidden.git rev-parse --verify a &&
git -C hidden.git rev-parse --verify b
'
t5551: factor out tag creation One of our tests in t5551 creates a large number of tags, and jumps through some hoops to do it efficiently. Let's factor that out into a function so we can make other similar tests. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-05-20 07:36:43 +00:00
# create an arbitrary number of tags, numbered from tag-$1 to tag-$2
create_tags () {
rm -f marks &&
for i in $(test_seq "$1" "$2")
remote-curl: main test case for the OS command line overflow This is main test case for the original problem that triggered this patch series. We create a repo with 50k tags and then test whether git-clone over the smart HTTP protocol succeeds. Note that we construct the repo in a slightly different way than the original script used to reproduce the problem. This is because the original script just created 50k tags all pointing to the same commit, so if there was a bug where remote-curl.c was not passing all the refs to fetch-pack we wouldn't know. The clone would succeed even if only one tag was passed, because all the other tags were pointing at the same SHA and would be considered present. Instead we create a repo with 50k independent (dangling) commits and then tag each of those commits with a unique tag. This way if one of the tags is not given to fetch-pack, later stages of the clone would complain about it. This allows us to test both that the command line overflow was fixed, as well as that it was fixed in a way that doesn't leave out any of the refs. Signed-off-by: Ivan Todoroski <grnch@gmx.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-04-02 15:17:03 +00:00
do
t5551: factor out tag creation One of our tests in t5551 creates a large number of tags, and jumps through some hoops to do it efficiently. Let's factor that out into a function so we can make other similar tests. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-05-20 07:36:43 +00:00
# don't use here-doc, because it requires a process
# per loop iteration
echo "commit refs/heads/too-many-refs-$1" &&
echo "mark :$i" &&
echo "committer git <git@example.com> $i +0000" &&
echo "data 0" &&
echo "M 644 inline bla.txt" &&
echo "data 4" &&
echo "bla" &&
remote-curl: main test case for the OS command line overflow This is main test case for the original problem that triggered this patch series. We create a repo with 50k tags and then test whether git-clone over the smart HTTP protocol succeeds. Note that we construct the repo in a slightly different way than the original script used to reproduce the problem. This is because the original script just created 50k tags all pointing to the same commit, so if there was a bug where remote-curl.c was not passing all the refs to fetch-pack we wouldn't know. The clone would succeed even if only one tag was passed, because all the other tags were pointing at the same SHA and would be considered present. Instead we create a repo with 50k independent (dangling) commits and then tag each of those commits with a unique tag. This way if one of the tags is not given to fetch-pack, later stages of the clone would complain about it. This allows us to test both that the command line overflow was fixed, as well as that it was fixed in a way that doesn't leave out any of the refs. Signed-off-by: Ivan Todoroski <grnch@gmx.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-04-02 15:17:03 +00:00
# make every commit dangling by always
# rewinding the branch after each commit
t5551: factor out tag creation One of our tests in t5551 creates a large number of tags, and jumps through some hoops to do it efficiently. Let's factor that out into a function so we can make other similar tests. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-05-20 07:36:43 +00:00
echo "reset refs/heads/too-many-refs-$1" &&
echo "from :$1"
remote-curl: main test case for the OS command line overflow This is main test case for the original problem that triggered this patch series. We create a repo with 50k tags and then test whether git-clone over the smart HTTP protocol succeeds. Note that we construct the repo in a slightly different way than the original script used to reproduce the problem. This is because the original script just created 50k tags all pointing to the same commit, so if there was a bug where remote-curl.c was not passing all the refs to fetch-pack we wouldn't know. The clone would succeed even if only one tag was passed, because all the other tags were pointing at the same SHA and would be considered present. Instead we create a repo with 50k independent (dangling) commits and then tag each of those commits with a unique tag. This way if one of the tags is not given to fetch-pack, later stages of the clone would complain about it. This allows us to test both that the command line overflow was fixed, as well as that it was fixed in a way that doesn't leave out any of the refs. Signed-off-by: Ivan Todoroski <grnch@gmx.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-04-02 15:17:03 +00:00
done | git fast-import --export-marks=marks &&
# now assign tags to all the dangling commits we created above
t: use perl instead of "$PERL_PATH" where applicable As of the last commit, we can use "perl" instead of "$PERL_PATH" when running tests, as the former is now a function which uses the latter. As the shorter "perl" is easier on the eyes, let's switch to using it everywhere. This is not quite a mechanical s/$PERL_PATH/perl/ replacement, though. There are some places where we invoke perl from a script we generate on the fly, and those scripts do not have access to our internal shell functions. The result can be double-checked by running: ln -s /bin/false bin-wrappers/perl make test which continues to pass even after this patch. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-10-29 01:23:03 +00:00
tag=$(perl -e "print \"bla\" x 30") &&
t5551: do not use unportable sed '\+' The set-up step to prepare a repository with 50000 tags used a non-porable '\+' to match one-or-more. The error was not caught because the next test that uses that repository did not even bother to check if these expected tags were actually cloned to the resulting repository. Fix the sed construct to use BRE and update the "clone" test that wanted to test cloning from such a repository with many refs to check the resulting repository. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-12 22:50:59 +00:00
sed -e "s|^:\([^ ]*\) \(.*\)$|\2 refs/tags/$tag-\1|" <marks >>packed-refs
t5551: factor out tag creation One of our tests in t5551 creates a large number of tags, and jumps through some hoops to do it efficiently. Let's factor that out into a function so we can make other similar tests. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-05-20 07:36:43 +00:00
}
Merge branch 'jk/http-backend-deadlock-2.2' into jk/http-backend-deadlock-2.3 * jk/http-backend-deadlock-2.2: http-backend: spool ref negotiation requests to buffer t5551: factor out tag creation http-backend: fix die recursion with custom handler
2015-05-26 03:44:04 +00:00
test_expect_success 'create 2,000 tags in the repo' '
t5551: factor out tag creation One of our tests in t5551 creates a large number of tags, and jumps through some hoops to do it efficiently. Let's factor that out into a function so we can make other similar tests. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-05-20 07:36:43 +00:00
(
cd "$HTTPD_DOCUMENT_ROOT_PATH/repo.git" &&
Merge branch 'jk/http-backend-deadlock-2.2' into jk/http-backend-deadlock-2.3 * jk/http-backend-deadlock-2.2: http-backend: spool ref negotiation requests to buffer t5551: factor out tag creation http-backend: fix die recursion with custom handler
2015-05-26 03:44:04 +00:00
create_tags 1 2000
remote-curl: main test case for the OS command line overflow This is main test case for the original problem that triggered this patch series. We create a repo with 50k tags and then test whether git-clone over the smart HTTP protocol succeeds. Note that we construct the repo in a slightly different way than the original script used to reproduce the problem. This is because the original script just created 50k tags all pointing to the same commit, so if there was a bug where remote-curl.c was not passing all the refs to fetch-pack we wouldn't know. The clone would succeed even if only one tag was passed, because all the other tags were pointing at the same SHA and would be considered present. Instead we create a repo with 50k independent (dangling) commits and then tag each of those commits with a unique tag. This way if one of the tags is not given to fetch-pack, later stages of the clone would complain about it. This allows us to test both that the command line overflow was fixed, as well as that it was fixed in a way that doesn't leave out any of the refs. Signed-off-by: Ivan Todoroski <grnch@gmx.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-04-02 15:17:03 +00:00
)
'
t5551: make EXPENSIVE test cheaper We create 50,000 tags to check that we don't overflow the command-line of fetch-pack. But by using run_with_cmdline_limit, we can get the same effect with a much smaller number of tags. This makes the test fast enough that we can drop the EXPENSIVE prereq, which means people will actually run it. It was not documented to do so, but this test was also the only test of a clone-over-http that requires multiple POSTs during the conversation. We can continue to test that by dropping http.postbuffer to its minimum size, and checking that we get two POSTs. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-03-13 04:57:05 +00:00
test_expect_success CMDLINE_LIMIT \
'clone the 2,000 tag repo to check OS command line overflow' '
run_with_limited_cmdline git clone $HTTPD_URL/smart/repo.git too-many-refs &&
t5551: do not use unportable sed '\+' The set-up step to prepare a repository with 50000 tags used a non-porable '\+' to match one-or-more. The error was not caught because the next test that uses that repository did not even bother to check if these expected tags were actually cloned to the resulting repository. Fix the sed construct to use BRE and update the "clone" test that wanted to test cloning from such a repository with many refs to check the resulting repository. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-12 22:50:59 +00:00
(
cd too-many-refs &&
t5551: make EXPENSIVE test cheaper We create 50,000 tags to check that we don't overflow the command-line of fetch-pack. But by using run_with_cmdline_limit, we can get the same effect with a much smaller number of tags. This makes the test fast enough that we can drop the EXPENSIVE prereq, which means people will actually run it. It was not documented to do so, but this test was also the only test of a clone-over-http that requires multiple POSTs during the conversation. We can continue to test that by dropping http.postbuffer to its minimum size, and checking that we get two POSTs. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-03-13 04:57:05 +00:00
git for-each-ref refs/tags >actual &&
test_line_count = 2000 actual
t5551: do not use unportable sed '\+' The set-up step to prepare a repository with 50000 tags used a non-porable '\+' to match one-or-more. The error was not caught because the next test that uses that repository did not even bother to check if these expected tags were actually cloned to the resulting repository. Fix the sed construct to use BRE and update the "clone" test that wanted to test cloning from such a repository with many refs to check the resulting repository. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-12 22:50:59 +00:00
)
remote-curl: main test case for the OS command line overflow This is main test case for the original problem that triggered this patch series. We create a repo with 50k tags and then test whether git-clone over the smart HTTP protocol succeeds. Note that we construct the repo in a slightly different way than the original script used to reproduce the problem. This is because the original script just created 50k tags all pointing to the same commit, so if there was a bug where remote-curl.c was not passing all the refs to fetch-pack we wouldn't know. The clone would succeed even if only one tag was passed, because all the other tags were pointing at the same SHA and would be considered present. Instead we create a repo with 50k independent (dangling) commits and then tag each of those commits with a unique tag. This way if one of the tags is not given to fetch-pack, later stages of the clone would complain about it. This allows us to test both that the command line overflow was fixed, as well as that it was fixed in a way that doesn't leave out any of the refs. Signed-off-by: Ivan Todoroski <grnch@gmx.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-04-02 15:17:03 +00:00
'
t5551: make EXPENSIVE test cheaper We create 50,000 tags to check that we don't overflow the command-line of fetch-pack. But by using run_with_cmdline_limit, we can get the same effect with a much smaller number of tags. This makes the test fast enough that we can drop the EXPENSIVE prereq, which means people will actually run it. It was not documented to do so, but this test was also the only test of a clone-over-http that requires multiple POSTs during the conversation. We can continue to test that by dropping http.postbuffer to its minimum size, and checking that we get two POSTs. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-03-13 04:57:05 +00:00
test_expect_success 'large fetch-pack requests can be split across POSTs' '
t5551-http-fetch-smart.sh: use the GIT_TRACE_CURL environment var Use the new GIT_TRACE_CURL environment variable instead of the deprecated GIT_CURL_VERBOSE. Signed-off-by: Elia Pinto <gitter.spiros@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-09-05 10:24:44 +00:00
GIT_TRACE_CURL=true git -c http.postbuffer=65536 \
t5551: make EXPENSIVE test cheaper We create 50,000 tags to check that we don't overflow the command-line of fetch-pack. But by using run_with_cmdline_limit, we can get the same effect with a much smaller number of tags. This makes the test fast enough that we can drop the EXPENSIVE prereq, which means people will actually run it. It was not documented to do so, but this test was also the only test of a clone-over-http that requires multiple POSTs during the conversation. We can continue to test that by dropping http.postbuffer to its minimum size, and checking that we get two POSTs. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-03-13 04:57:05 +00:00
clone --bare "$HTTPD_URL/smart/repo.git" split.git 2>err &&
t5551-http-fetch-smart.sh: use the GIT_TRACE_CURL environment var Use the new GIT_TRACE_CURL environment variable instead of the deprecated GIT_CURL_VERBOSE. Signed-off-by: Elia Pinto <gitter.spiros@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-09-05 10:24:44 +00:00
grep "^=> Send header: POST" err >posts &&
t5551: make EXPENSIVE test cheaper We create 50,000 tags to check that we don't overflow the command-line of fetch-pack. But by using run_with_cmdline_limit, we can get the same effect with a much smaller number of tags. This makes the test fast enough that we can drop the EXPENSIVE prereq, which means people will actually run it. It was not documented to do so, but this test was also the only test of a clone-over-http that requires multiple POSTs during the conversation. We can continue to test that by dropping http.postbuffer to its minimum size, and checking that we get two POSTs. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-03-13 04:57:05 +00:00
test_line_count = 2 posts
'
remote-curl: don't hang when a server dies before any output In the event that a HTTP server closes the connection after giving a 200 but before giving any packets, we don't want to hang forever waiting for a response that will never come. Instead, we should die immediately. One case where this happens is when attempting to fetch a dangling object by its object name. In this case, the server dies before sending any data. Prior to this patch, fetch-pack would wait for data from the server, and remote-curl would wait for fetch-pack, causing a deadlock. Despite this patch, there is other possible malformed input that could cause the same deadlock (e.g. a half-finished pktline, or a pktline but no trailing flush). There are a few possible solutions to this: 1. Allowing remote-curl to tell fetch-pack about the EOF (so that fetch-pack could know that no more data is coming until it says something else). This is tricky because an out-of-band signal would be required, or the http response would have to be re-framed inside another layer of pkt-line or something. 2. Make remote-curl understand some of the protocol. It turns out that in addition to understanding pkt-line, it would need to watch for ack/nak. This is somewhat fragile, as information about the protocol would end up in two places. Also, pkt-lines which are already at the length limit would need special handling. Both of these solutions would require a fair amount of work, whereas this hack is easy and solves at least some of the problem. Still to do: it would be good to give a better error message than "fatal: The remote end hung up unexpectedly". Signed-off-by: David Turner <dturner@twosigma.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-11-18 20:30:49 +00:00
test_expect_success 'test allowreachablesha1inwant' '
test_when_finished "rm -rf test_reachable.git" &&
server="$HTTPD_DOCUMENT_ROOT_PATH/repo.git" &&
master_sha=$(git -C "$server" rev-parse refs/heads/master) &&
git -C "$server" config uploadpack.allowreachablesha1inwant 1 &&
git init --bare test_reachable.git &&
git -C test_reachable.git remote add origin "$HTTPD_URL/smart/repo.git" &&
git -C test_reachable.git fetch origin "$master_sha"
'
test_expect_success 'test allowreachablesha1inwant with unreachable' '
test_when_finished "rm -rf test_reachable.git; git reset --hard $(git rev-parse HEAD)" &&
#create unreachable sha
echo content >file2 &&
git add file2 &&
git commit -m two &&
git push public HEAD:refs/heads/doomed &&
git push public :refs/heads/doomed &&
server="$HTTPD_DOCUMENT_ROOT_PATH/repo.git" &&
master_sha=$(git -C "$server" rev-parse refs/heads/master) &&
git -C "$server" config uploadpack.allowreachablesha1inwant 1 &&
git init --bare test_reachable.git &&
git -C test_reachable.git remote add origin "$HTTPD_URL/smart/repo.git" &&
tests: always test fetch of unreachable with v0 Some tests check that fetching an unreachable object fails, but protocol v2 allows such fetches. Unset GIT_TEST_PROTOCOL_VERSION so that these tests are always run using protocol v0. Signed-off-by: Jonathan Tan <jonathantanmy@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-02-25 21:54:08 +00:00
# Some protocol versions (e.g. 2) support fetching
# unadvertised objects, so restrict this test to v0.
test_must_fail env GIT_TEST_PROTOCOL_VERSION= \
git -C test_reachable.git fetch origin "$(git rev-parse HEAD)"
remote-curl: don't hang when a server dies before any output In the event that a HTTP server closes the connection after giving a 200 but before giving any packets, we don't want to hang forever waiting for a response that will never come. Instead, we should die immediately. One case where this happens is when attempting to fetch a dangling object by its object name. In this case, the server dies before sending any data. Prior to this patch, fetch-pack would wait for data from the server, and remote-curl would wait for fetch-pack, causing a deadlock. Despite this patch, there is other possible malformed input that could cause the same deadlock (e.g. a half-finished pktline, or a pktline but no trailing flush). There are a few possible solutions to this: 1. Allowing remote-curl to tell fetch-pack about the EOF (so that fetch-pack could know that no more data is coming until it says something else). This is tricky because an out-of-band signal would be required, or the http response would have to be re-framed inside another layer of pkt-line or something. 2. Make remote-curl understand some of the protocol. It turns out that in addition to understanding pkt-line, it would need to watch for ack/nak. This is somewhat fragile, as information about the protocol would end up in two places. Also, pkt-lines which are already at the length limit would need special handling. Both of these solutions would require a fair amount of work, whereas this hack is easy and solves at least some of the problem. Still to do: it would be good to give a better error message than "fatal: The remote end hung up unexpectedly". Signed-off-by: David Turner <dturner@twosigma.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-11-18 20:30:49 +00:00
'
upload-pack: optionally allow fetching any sha1 It seems a little silly to do a reachabilty check in the case where we trust the user to access absolutely everything in the repository. Also, it's racy in a distributed system -- perhaps one server advertises a ref, but another has since had a force-push to that ref, and perhaps the two HTTP requests end up directed to these different servers. Signed-off-by: David Turner <dturner@twosigma.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-11-11 17:23:48 +00:00
test_expect_success 'test allowanysha1inwant with unreachable' '
test_when_finished "rm -rf test_reachable.git; git reset --hard $(git rev-parse HEAD)" &&
#create unreachable sha
echo content >file2 &&
git add file2 &&
git commit -m two &&
git push public HEAD:refs/heads/doomed &&
git push public :refs/heads/doomed &&
server="$HTTPD_DOCUMENT_ROOT_PATH/repo.git" &&
master_sha=$(git -C "$server" rev-parse refs/heads/master) &&
git -C "$server" config uploadpack.allowreachablesha1inwant 1 &&
git init --bare test_reachable.git &&
git -C test_reachable.git remote add origin "$HTTPD_URL/smart/repo.git" &&
tests: always test fetch of unreachable with v0 Some tests check that fetching an unreachable object fails, but protocol v2 allows such fetches. Unset GIT_TEST_PROTOCOL_VERSION so that these tests are always run using protocol v0. Signed-off-by: Jonathan Tan <jonathantanmy@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-02-25 21:54:08 +00:00
# Some protocol versions (e.g. 2) support fetching
# unadvertised objects, so restrict this test to v0.
test_must_fail env GIT_TEST_PROTOCOL_VERSION= \
git -C test_reachable.git fetch origin "$(git rev-parse HEAD)" &&
upload-pack: optionally allow fetching any sha1 It seems a little silly to do a reachabilty check in the case where we trust the user to access absolutely everything in the repository. Also, it's racy in a distributed system -- perhaps one server advertises a ref, but another has since had a force-push to that ref, and perhaps the two HTTP requests end up directed to these different servers. Signed-off-by: David Turner <dturner@twosigma.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-11-11 17:23:48 +00:00
git -C "$server" config uploadpack.allowanysha1inwant 1 &&
git -C test_reachable.git fetch origin "$(git rev-parse HEAD)"
'
http-backend: spool ref negotiation requests to buffer When http-backend spawns "upload-pack" to do ref negotiation, it streams the http request body to upload-pack, who then streams the http response back to the client as it reads. In theory, git can go full-duplex; the client can consume our response while it is still sending the request. In practice, however, HTTP is a half-duplex protocol. Even if our client is ready to read and write simultaneously, we may have other HTTP infrastructure in the way, including the webserver that spawns our CGI, or any intermediate proxies. In at least one documented case[1], this leads to deadlock when trying a fetch over http. What happens is basically: 1. Apache proxies the request to the CGI, http-backend. 2. http-backend gzip-inflates the data and sends the result to upload-pack. 3. upload-pack acts on the data and generates output over the pipe back to Apache. Apache isn't reading because it's busy writing (step 1). This works fine most of the time, because the upload-pack output ends up in a system pipe buffer, and Apache reads it as soon as it finishes writing. But if both the request and the response exceed the system pipe buffer size, then we deadlock (Apache blocks writing to http-backend, http-backend blocks writing to upload-pack, and upload-pack blocks writing to Apache). We need to break the deadlock by spooling either the input or the output. In this case, it's ideal to spool the input, because Apache does not start reading either stdout _or_ stderr until we have consumed all of the input. So until we do so, we cannot even get an error message out to the client. The solution is fairly straight-forward: we read the request body into an in-memory buffer in http-backend, freeing up Apache, and then feed the data ourselves to upload-pack. But there are a few important things to note: 1. We limit the in-memory buffer to prevent an obvious denial-of-service attack. This is a new hard limit on requests, but it's unlikely to come into play. The default value is 10MB, which covers even the ridiculous 100,000-ref negotation in the included test (that actually caps out just over 5MB). But it's configurable on the off chance that you don't mind spending some extra memory to make even ridiculous requests work. 2. We must take care only to buffer when we have to. For pushes, the incoming packfile may be of arbitrary size, and we should connect the input directly to receive-pack. There's no deadlock problem here, though, because we do not produce any output until the whole packfile has been read. For upload-pack's initial ref advertisement, we similarly do not need to buffer. Even though we may generate a lot of output, there is no request body at all (i.e., it is a GET, not a POST). [1] http://article.gmane.org/gmane.comp.version-control.git/269020 Test-adapted-from: Dennis Kaarsemaker <dennis@kaarsemaker.net> Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-05-20 07:37:09 +00:00
test_expect_success EXPENSIVE 'http can handle enormous ref negotiation' '
Merge branch 'jk/http-backend-deadlock-2.2' into jk/http-backend-deadlock-2.3 * jk/http-backend-deadlock-2.2: http-backend: spool ref negotiation requests to buffer t5551: factor out tag creation http-backend: fix die recursion with custom handler
2015-05-26 03:44:04 +00:00
(
cd "$HTTPD_DOCUMENT_ROOT_PATH/repo.git" &&
create_tags 2001 50000
) &&
http-backend: spool ref negotiation requests to buffer When http-backend spawns "upload-pack" to do ref negotiation, it streams the http request body to upload-pack, who then streams the http response back to the client as it reads. In theory, git can go full-duplex; the client can consume our response while it is still sending the request. In practice, however, HTTP is a half-duplex protocol. Even if our client is ready to read and write simultaneously, we may have other HTTP infrastructure in the way, including the webserver that spawns our CGI, or any intermediate proxies. In at least one documented case[1], this leads to deadlock when trying a fetch over http. What happens is basically: 1. Apache proxies the request to the CGI, http-backend. 2. http-backend gzip-inflates the data and sends the result to upload-pack. 3. upload-pack acts on the data and generates output over the pipe back to Apache. Apache isn't reading because it's busy writing (step 1). This works fine most of the time, because the upload-pack output ends up in a system pipe buffer, and Apache reads it as soon as it finishes writing. But if both the request and the response exceed the system pipe buffer size, then we deadlock (Apache blocks writing to http-backend, http-backend blocks writing to upload-pack, and upload-pack blocks writing to Apache). We need to break the deadlock by spooling either the input or the output. In this case, it's ideal to spool the input, because Apache does not start reading either stdout _or_ stderr until we have consumed all of the input. So until we do so, we cannot even get an error message out to the client. The solution is fairly straight-forward: we read the request body into an in-memory buffer in http-backend, freeing up Apache, and then feed the data ourselves to upload-pack. But there are a few important things to note: 1. We limit the in-memory buffer to prevent an obvious denial-of-service attack. This is a new hard limit on requests, but it's unlikely to come into play. The default value is 10MB, which covers even the ridiculous 100,000-ref negotation in the included test (that actually caps out just over 5MB). But it's configurable on the off chance that you don't mind spending some extra memory to make even ridiculous requests work. 2. We must take care only to buffer when we have to. For pushes, the incoming packfile may be of arbitrary size, and we should connect the input directly to receive-pack. There's no deadlock problem here, though, because we do not produce any output until the whole packfile has been read. For upload-pack's initial ref advertisement, we similarly do not need to buffer. Even though we may generate a lot of output, there is no request body at all (i.e., it is a GET, not a POST). [1] http://article.gmane.org/gmane.comp.version-control.git/269020 Test-adapted-from: Dennis Kaarsemaker <dennis@kaarsemaker.net> Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-05-20 07:37:09 +00:00
git -C too-many-refs fetch -q --tags &&
(
cd "$HTTPD_DOCUMENT_ROOT_PATH/repo.git" &&
create_tags 50001 100000
) &&
git -C too-many-refs fetch -q --tags &&
git -C too-many-refs for-each-ref refs/tags >tags &&
test_line_count = 100000 tags
'
http: support sending custom HTTP headers We introduce a way to send custom HTTP headers with all requests. This allows us, for example, to send an extra token from build agents for temporary access to private repositories. (This is the use case that triggered this patch.) This feature can be used like this: git -c http.extraheader='Secret: sssh!' fetch $URL $REF Note that `curl_easy_setopt(..., CURLOPT_HTTPHEADER, ...)` takes only a single list, overriding any previous call. This means we have to collect _all_ of the headers we want to use into a single list, and feed it to cURL in one shot. Since we already unconditionally set a "pragma" header when initializing the curl handles, we can add our new headers to that list. For callers which override the default header list (like probe_rpc), we provide `http_copy_default_headers()` so they can do the same trick. Big thanks to Jeff King and Junio Hamano for their outstanding help and patient reviews. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Reviewed-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-04-27 12:20:37 +00:00
test_expect_success 'custom http headers' '
t5551: make the test for extra HTTP headers more robust To test that extra HTTP headers are passed correctly, t5551 verifies that a fetch succeeds when two required headers are passed, and that the fetch does not succeed when those headers are not passed. However, this test would also succeed if the configuration required only one header. As Apache's configuration is notoriously tricky (this developer frequently requires StackOverflow's help to understand Apache's documentation), especially when still supporting the 2.2 line, let's just really make sure that the test verifies what we want it to verify. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Reviewed-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-05-09 06:19:00 +00:00
test_must_fail git -c http.extraheader="x-magic-two: cadabra" \
fetch "$HTTPD_URL/smart_headers/repo.git" &&
http: support sending custom HTTP headers We introduce a way to send custom HTTP headers with all requests. This allows us, for example, to send an extra token from build agents for temporary access to private repositories. (This is the use case that triggered this patch.) This feature can be used like this: git -c http.extraheader='Secret: sssh!' fetch $URL $REF Note that `curl_easy_setopt(..., CURLOPT_HTTPHEADER, ...)` takes only a single list, overriding any previous call. This means we have to collect _all_ of the headers we want to use into a single list, and feed it to cURL in one shot. Since we already unconditionally set a "pragma" header when initializing the curl handles, we can add our new headers to that list. For callers which override the default header list (like probe_rpc), we provide `http_copy_default_headers()` so they can do the same trick. Big thanks to Jeff King and Junio Hamano for their outstanding help and patient reviews. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Reviewed-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-04-27 12:20:37 +00:00
git -c http.extraheader="x-magic-one: abra" \
-c http.extraheader="x-magic-two: cadabra" \
submodule: ensure that -c http.extraheader is heeded To support this developer's use case of allowing build agents token-based access to private repositories, we introduced the http.extraheader feature, allowing extra HTTP headers to be sent along with every HTTP request. This patch verifies that we can configure these extra HTTP headers via the command-line for use with `git submodule update`, too. Example: git -c http.extraheader="Secret: Sauce" submodule update --init Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-05-10 07:08:56 +00:00
fetch "$HTTPD_URL/smart_headers/repo.git" &&
git update-index --add --cacheinfo 160000,$(git rev-parse HEAD),sub &&
git config -f .gitmodules submodule.sub.path sub &&
git config -f .gitmodules submodule.sub.url \
"$HTTPD_URL/smart_headers/repo.git" &&
git submodule init sub &&
test_must_fail git submodule update sub &&
git -c http.extraheader="x-magic-one: abra" \
-c http.extraheader="x-magic-two: cadabra" \
submodule update sub
http: support sending custom HTTP headers We introduce a way to send custom HTTP headers with all requests. This allows us, for example, to send an extra token from build agents for temporary access to private repositories. (This is the use case that triggered this patch.) This feature can be used like this: git -c http.extraheader='Secret: sssh!' fetch $URL $REF Note that `curl_easy_setopt(..., CURLOPT_HTTPHEADER, ...)` takes only a single list, overriding any previous call. This means we have to collect _all_ of the headers we want to use into a single list, and feed it to cURL in one shot. Since we already unconditionally set a "pragma" header when initializing the curl handles, we can add our new headers to that list. For callers which override the default header list (like probe_rpc), we provide `http_copy_default_headers()` so they can do the same trick. Big thanks to Jeff King and Junio Hamano for their outstanding help and patient reviews. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Reviewed-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-04-27 12:20:37 +00:00
'
fetch-pack: unify ref in and out param When a user fetches: - at least one up-to-date ref and at least one non-up-to-date ref, - using HTTP with protocol v0 (or something else that uses the fetch command of a remote helper) some refs might not be updated after the fetch. This bug was introduced in commit 989b8c4452 ("fetch-pack: put shallow info in output parameter", 2018-06-28) which allowed transports to report the refs that they have fetched in a new out-parameter "fetched_refs". If they do so, transport_fetch_refs() makes this information available to its caller. Users of "fetched_refs" rely on the following 3 properties: (1) it is the complete list of refs that was passed to transport_fetch_refs(), (2) it has shallow information (REF_STATUS_REJECT_SHALLOW set if relevant), and (3) it has updated OIDs if ref-in-want was used (introduced after 989b8c4452). In an effort to satisfy (1), whenever transport_fetch_refs() filters the refs sent to the transport, it re-adds the filtered refs to whatever the transport supplies before returning it to the user. However, the implementation in 989b8c4452 unconditionally re-adds the filtered refs without checking if the transport refrained from reporting anything in "fetched_refs" (which it is allowed to do), resulting in an incomplete list, no longer satisfying (1). An earlier effort to resolve this [1] solved the issue by readding the filtered refs only if the transport did not refrain from reporting in "fetched_refs", but after further discussion, it seems that the better solution is to revert the API change that introduced "fetched_refs". This API change was first suggested as part of a ref-in-want implementation that allowed for ref patterns and, thus, there could be drastic differences between the input refs and the refs actually fetched [2]; we eventually decided to only allow exact ref names, but this API change remained even though its necessity was decreased. Therefore, revert this API change by reverting commit 989b8c4452, and make receive_wanted_refs() update the OIDs in the sought array (like how update_shallow() updates shallow information in the sought array) instead. A test is also included to show that the user-visible bug discussed at the beginning of this commit message no longer exists. [1] https://public-inbox.org/git/20180801171806.GA122458@google.com/ [2] https://public-inbox.org/git/86a128c5fb710a41791e7183207c4d64889f9307.1485381677.git.jonathantanmy@google.com/ Signed-off-by: Jonathan Tan <jonathantanmy@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-08-01 20:13:20 +00:00
test_expect_success 'using fetch command in remote-curl updates refs' '
SERVER="$HTTPD_DOCUMENT_ROOT_PATH/twobranch" &&
rm -rf "$SERVER" client &&
git init "$SERVER" &&
test_commit -C "$SERVER" foo &&
git -C "$SERVER" update-ref refs/heads/anotherbranch foo &&
git clone $HTTPD_URL/smart/twobranch client &&
test_commit -C "$SERVER" bar &&
git -C client -c protocol.version=0 fetch &&
git -C "$SERVER" rev-parse master >expect &&
git -C client rev-parse origin/master >actual &&
test_cmp expect actual
'
fetch: do not list refs if fetching only hashes If only hash literals are given on a "git fetch" command-line, tag following is not requested, and the fetch is done using protocol v2, a list of refs is not required from the remote. Therefore, optimize by invoking transport_get_remote_refs() only if we need the refs. Signed-off-by: Jonathan Tan <jonathantanmy@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-09-27 19:24:07 +00:00
test_expect_success 'fetch by SHA-1 without tag following' '
SERVER="$HTTPD_DOCUMENT_ROOT_PATH/server" &&
rm -rf "$SERVER" client &&
git init "$SERVER" &&
test_commit -C "$SERVER" foo &&
git clone $HTTPD_URL/smart/server client &&
test_commit -C "$SERVER" bar &&
git -C "$SERVER" rev-parse bar >bar_hash &&
git -C client -c protocol.version=0 fetch \
--no-tags origin $(cat bar_hash)
'
http: support cookie redaction when tracing When using GIT_TRACE_CURL, Git already redacts the "Authorization:" and "Proxy-Authorization:" HTTP headers. Extend this redaction to a user-specified list of cookies, specified through the "GIT_REDACT_COOKIES" environment variable. Signed-off-by: Jonathan Tan <jonathantanmy@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-01-19 00:28:01 +00:00
test_expect_success 'GIT_REDACT_COOKIES redacts cookies' '
rm -rf clone &&
echo "Set-Cookie: Foo=1" >cookies &&
echo "Set-Cookie: Bar=2" >>cookies &&
GIT_TRACE_CURL=true GIT_REDACT_COOKIES=Bar,Baz \
git -c "http.cookieFile=$(pwd)/cookies" clone \
$HTTPD_URL/smart/repo.git clone 2>err &&
grep "Cookie:.*Foo=1" err &&
grep "Cookie:.*Bar=<redacted>" err &&
! grep "Cookie:.*Bar=2" err
'
test_expect_success 'GIT_REDACT_COOKIES handles empty values' '
rm -rf clone &&
echo "Set-Cookie: Foo=" >cookies &&
GIT_TRACE_CURL=true GIT_REDACT_COOKIES=Foo \
git -c "http.cookieFile=$(pwd)/cookies" clone \
$HTTPD_URL/smart/repo.git clone 2>err &&
grep "Cookie:.*Foo=<redacted>" err
'
http: support omitting data from traces GIT_TRACE_CURL provides a way to debug what is being sent and received over HTTP, with automatic redaction of sensitive information. But it also logs data transmissions, which significantly increases the log file size, sometimes unnecessarily. Add an option "GIT_TRACE_CURL_NO_DATA" to allow the user to omit such data transmissions. Signed-off-by: Jonathan Tan <jonathantanmy@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-01-19 00:28:02 +00:00
test_expect_success 'GIT_TRACE_CURL_NO_DATA prevents data from being traced' '
rm -rf clone &&
GIT_TRACE_CURL=true \
git clone $HTTPD_URL/smart/repo.git clone 2>err &&
grep "=> Send data" err &&
rm -rf clone &&
GIT_TRACE_CURL=true GIT_TRACE_CURL_NO_DATA=1 \
git clone $HTTPD_URL/smart/repo.git clone 2>err &&
! grep "=> Send data" err
'
t5551: test server-side ERR packet When a smart HTTP server sends an error message via pkt-line, we detect the error due to using PACKET_READ_DIE_ON_ERR_PACKET. This case was added by 2d103c31c2 (pack-protocol.txt: accept error packets in any context, 2018-12-29), but not covered by tests. Signed-off-by: Josh Steadmon <steadmon@google.com> Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-02-06 19:19:10 +00:00
test_expect_success 'server-side error detected' '
test_must_fail git clone $HTTPD_URL/error_smart/repo.git 2>actual &&
grep "server-side error" actual
'
test smart http fetch and push The top level directory "/smart/" of the test Apache server is mapped through our git-http-backend CGI, but uses the same underlying repository space as the server's document root. This is the most simple installation possible. Server logs are checked to verify the client has accessed only the smart URLs during the test. During fetch testing the headers are also logged from libcurl to ensure we are making a reasonably sane HTTP request, and getting back reasonably sane response headers from the CGI. When validating the request headers used during smart fetch we munge away the actual Content-Length and replace it with the placeholder "xxx". This avoids unnecessary varability in the test caused by an unrelated change in the requested capabilities in the first want line of the request. However, we still want to look for and verify that Content-Length was used, because smaller payloads should be using Content-Length and not "Transfer-Encoding: chunked". When validating the server response headers we must discard both Content-Length and Transfer-Encoding, as Apache2 can use either format to return our response. During development of this test I observed Apache returning both forms, depending on when the processes got CPU time. If our CGI returned the pack data quickly, Apache just buffered the whole thing and returned a Content-Length. If our CGI took just a bit too long to complete, Apache flushed its buffer and instead used "Transfer-Encoding: chunked". Signed-off-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-10-31 00:47:47 +00:00
test_done
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