Adding upstream version 1:2.43.0.upstream/1%2.43.0

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 734 insertions, 0 deletions

diff --git a/t/t5551-http-fetch-smart.sh b/t/t5551-http-fetch-smart.sh
new file mode 100755
index 0000000..8a41adf
--- /dev/null
+++ b/t/t5551-http-fetch-smart.sh
@@ -0,0 +1,734 @@
+#!/bin/sh
+
+: ${HTTP_PROTO:=HTTP/1.1}
+test_description="test smart fetching over http via http-backend ($HTTP_PROTO)"
+GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
+export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
+
+. ./test-lib.sh
+. "$TEST_DIRECTORY"/lib-httpd.sh
+test "$HTTP_PROTO" = "HTTP/2" && enable_http2
+start_httpd
+
+test_expect_success HTTP2 'enable client-side http/2' '
+	git config --global http.version HTTP/2
+'
+
+test_expect_success 'setup repository' '
+	git config push.default matching &&
+	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 "$HTTPD_DOCUMENT_ROOT_PATH/repo.git" &&
+	git push public main:main
+'
+
+setup_askpass_helper
+
+test_expect_success 'clone http repository' '
+	if test_have_prereq HTTP2 && test "$HTTPD_PROTO" = "https"
+	then
+		# ALPN lets us immediately use HTTP/2; likewise, POSTs with
+		# bodies can use it because they do not need to upgrade
+		INITIAL_PROTO=HTTP/2
+	else
+		# either we are not using HTTP/2, or the initial
+		# request is sent via HTTP/1.1 and asks for upgrade
+		INITIAL_PROTO=HTTP/1.1
+	fi &&
+
+	cat >exp.raw <<-EOF &&
+	> GET /smart/repo.git/info/refs?service=git-upload-pack $INITIAL_PROTO
+	> accept: */*
+	> accept-encoding: ENCODINGS
+	> accept-language: ko-KR, *;q=0.9
+	> pragma: no-cache
+	{V2} > git-protocol: version=2
+	< $HTTP_PROTO 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 $INITIAL_PROTO
+	> accept-encoding: ENCODINGS
+	> content-type: application/x-git-upload-pack-request
+	> accept: application/x-git-upload-pack-result
+	> accept-language: ko-KR, *;q=0.9
+	{V2} > git-protocol: version=2
+	> content-length: xxx
+	< $INITIAL_PROTO 200 OK
+	< pragma: no-cache
+	< cache-control: no-cache, max-age=0, must-revalidate
+	< content-type: application/x-git-upload-pack-result
+	{V2} > POST /smart/repo.git/git-upload-pack $INITIAL_PROTO
+	{V2} > accept-encoding: ENCODINGS
+	{V2} > content-type: application/x-git-upload-pack-request
+	{V2} > accept: application/x-git-upload-pack-result
+	{V2} > accept-language: ko-KR, *;q=0.9
+	{V2} > git-protocol: version=2
+	{V2} > content-length: xxx
+	{V2} < $INITIAL_PROTO 200 OK
+	{V2} < pragma: no-cache
+	{V2} < cache-control: no-cache, max-age=0, must-revalidate
+	{V2} < content-type: application/x-git-upload-pack-result
+	EOF
+
+	if test "$GIT_TEST_PROTOCOL_VERSION" = 0
+	then
+		sed "/^{V2}/d" <exp.raw >exp
+	else
+		sed "s/^{V2} //" <exp.raw >exp
+	fi &&
+
+	GIT_TRACE_CURL=true LANGUAGE="ko_KR.UTF-8" \
+		git clone --quiet $HTTPD_URL/smart/repo.git clone 2>err &&
+	test_cmp file clone/file &&
+	tr '\''\015'\'' Q <err |
+	perl -pe '\''
+		s/(Send|Recv) header: ([A-Za-z0-9-]+):/
+		"$1 header: " . lc($2) . ":"
+		/e;
+	'\'' |
+	sed -e "
+		s/Q\$//
+		/^[^<=]/d
+		/^== Info:/d
+		/^=> Send header, /d
+		/^=> Send header:$/d
+		/^<= Recv header, /d
+		/^<= Recv header:$/d
+		s/=> Send header: //
+		s/= Recv header://
+		/^<= Recv data/d
+		/^=> Send data/d
+		/^<= Recv SSL data/d
+		/^=> Send SSL data/d
+		/^$/d
+		/^< $/d
+
+		/^[^><]/{
+			s/^/> /
+		}
+
+		/^< HTTP/ {
+			s/200$/200 OK/
+		}
+		/^< HTTP\\/1.1 101/d
+		/^[><] connection: /d
+		/^[><] upgrade: /d
+		/^> http2-settings: /d
+
+		/^> user-agent: /d
+		/^> host: /d
+		/^> POST /,$ {
+			/^> Accept: [*]\\/[*]/d
+		}
+		s/^> content-length: .*/> content-length: xxx/
+		/^> 00..want /d
+		/^> 00.*done/d
+
+		/^< server: /d
+		/^< expires: /d
+		/^< date: /d
+		/^< content-length: /d
+		/^< transfer-encoding: /d
+	" >actual &&
+
+	sed -e "s/^> accept-encoding: .*/> accept-encoding: ENCODINGS/" \
+			actual >actual.smudged &&
+	test_cmp exp actual.smudged &&
+
+	grep "accept-encoding:.*gzip" actual >actual.gzip
+'
+
+test_expect_success 'fetch changes via http' '
+	echo content >>file &&
+	git commit -a -m two &&
+	git push public &&
+	(cd clone && git pull) &&
+	test_cmp file clone/file
+'
+
+test_expect_success 'used upload-pack service' '
+	strip_access_log >log &&
+	grep "GET  /smart/repo.git/info/refs?service=git-upload-pack HTTP/[0-9.]* 200" log &&
+	grep "POST /smart/repo.git/git-upload-pack HTTP/[0-9.]* 200" log
+'
+
+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
+'
+
+test_expect_success 'redirects re-root further requests' '
+	git clone $HTTPD_URL/smart-redir-limited/repo.git repo-redir-limited
+'
+
+test_expect_success 're-rooting dies on insane schemes' '
+	test_must_fail git clone $HTTPD_URL/insane-redir/repo.git insane
+'
+
+test_expect_success 'clone from password-protected repository' '
+	echo two >expect &&
+	set_askpass user@host pass@host &&
+	git clone --bare "$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
+'
+
+test_expect_success 'clone from auth-only-for-push repository' '
+	echo two >expect &&
+	set_askpass wrong &&
+	git clone --bare "$HTTPD_URL/auth-push/smart/repo.git" smart-noauth &&
+	expect_askpass none &&
+	git --git-dir=smart-noauth log -1 --format=%s >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'clone from auth-only-for-objects repository' '
+	echo two >expect &&
+	set_askpass user@host pass@host &&
+	git clone --bare "$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 &&
+
+	# 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 "git help gitformat-pack-protocol"), 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 &&
+	expect_askpass none
+'
+
+test_expect_success 'redirects send auth to new location' '
+	set_askpass user@host pass@host &&
+	git -c credential.useHttpPath=true \
+	  clone $HTTPD_URL/smart-redir-auth/repo.git repo-redir-auth &&
+	expect_askpass both user@host auth/smart/repo.git
+'
+
+test_expect_success 'GIT_TRACE_CURL redacts auth details' '
+	rm -rf redact-auth trace &&
+	set_askpass user@host pass@host &&
+	GIT_TRACE_CURL="$(pwd)/trace" git clone --bare "$HTTPD_URL/auth/smart/repo.git" redact-auth &&
+	expect_askpass both user@host &&
+
+	# Ensure that there is no "Basic" followed by a base64 string, but that
+	# the auth details are redacted
+	! grep -i "Authorization: Basic [0-9a-zA-Z+/]" trace &&
+	grep -i "Authorization: Basic <redacted>" trace
+'
+
+test_expect_success 'GIT_CURL_VERBOSE redacts auth details' '
+	rm -rf redact-auth trace &&
+	set_askpass user@host pass@host &&
+	GIT_CURL_VERBOSE=1 git clone --bare "$HTTPD_URL/auth/smart/repo.git" redact-auth 2>trace &&
+	expect_askpass both user@host &&
+
+	# Ensure that there is no "Basic" followed by a base64 string, but that
+	# the auth details are redacted
+	! grep -i "Authorization: Basic [0-9a-zA-Z+/]" trace &&
+	grep -i "Authorization: Basic <redacted>" trace
+'
+
+test_expect_success 'GIT_TRACE_CURL does not redact auth details if GIT_TRACE_REDACT=0' '
+	rm -rf redact-auth trace &&
+	set_askpass user@host pass@host &&
+	GIT_TRACE_REDACT=0 GIT_TRACE_CURL="$(pwd)/trace" \
+		git clone --bare "$HTTPD_URL/auth/smart/repo.git" redact-auth &&
+	expect_askpass both user@host &&
+
+	grep -i "Authorization: Basic [0-9a-zA-Z+/]" trace
+'
+
+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)
+'
+
+test_expect_success 'invalid Content-Type rejected' '
+	test_must_fail git clone $HTTPD_URL/broken_smart/repo.git 2>actual &&
+	test_grep "not valid:" actual
+'
+
+test_expect_success 'create namespaced refs' '
+	test_commit namespaced &&
+	git push public HEAD:refs/namespaces/ns/refs/heads/main &&
+	git --git-dir="$HTTPD_DOCUMENT_ROOT_PATH/repo.git" \
+		symbolic-ref refs/namespaces/ns/HEAD refs/namespaces/ns/refs/heads/main
+'
+
+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 \
+		"$HTTPD_URL/smart_namespace/repo.git" ns-dumb &&
+	echo namespaced >expect &&
+	git --git-dir=ns-dumb/.git log -1 --format=%s >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'cookies stored in http.cookiefile when http.savecookies set' '
+	cat >cookies.txt <<-\EOF &&
+	127.0.0.1	FALSE	/smart_cookies/	FALSE	0	othername	othervalue
+	EOF
+	sort >expect_cookies.txt <<-\EOF &&
+	127.0.0.1	FALSE	/smart_cookies/	FALSE	0	othername	othervalue
+	127.0.0.1	FALSE	/smart_cookies/repo.git/	FALSE	0	name	value
+	127.0.0.1	FALSE	/smart_cookies/repo.git/info/	FALSE	0	name	value
+	EOF
+	git config http.cookiefile cookies.txt &&
+	git config http.savecookies true &&
+
+	test_when_finished "
+		git --git-dir=\"\$HTTPD_DOCUMENT_ROOT_PATH/repo.git\" \
+			tag -d cookie-tag
+	" &&
+	git --git-dir="$HTTPD_DOCUMENT_ROOT_PATH/repo.git" \
+		tag -m "foo" cookie-tag &&
+	git fetch $HTTPD_URL/smart_cookies/repo.git cookie-tag &&
+
+	grep "^[^#]" cookies.txt | sort >cookies_stripped.txt &&
+	test_cmp expect_cookies.txt cookies_stripped.txt
+'
+
+test_expect_success 'transfer.hiderefs works over smart-http' '
+	test_commit hidden &&
+	test_commit visible &&
+	git push public HEAD^:refs/heads/a HEAD:refs/heads/b &&
+	git --git-dir="$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
+'
+
+# 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")
+	do
+		# 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" &&
+		# make every commit dangling by always
+		# rewinding the branch after each commit
+		echo "reset refs/heads/too-many-refs-$1" &&
+		echo "from :$1"
+	done | git fast-import --export-marks=marks &&
+
+	# now assign tags to all the dangling commits we created above
+	tag=$(perl -e "print \"bla\" x 30") &&
+	sed -e "s|^:\([^ ]*\) \(.*\)$|\2 refs/tags/$tag-\1|" <marks >>packed-refs
+}
+
+test_expect_success 'create 2,000 tags in the repo' '
+	(
+		cd "$HTTPD_DOCUMENT_ROOT_PATH/repo.git" &&
+		create_tags 1 2000
+	)
+'
+
+test_expect_success CMDLINE_LIMIT \
+	'clone the 2,000 tag repo to check OS command line overflow' '
+	run_with_limited_cmdline git clone $HTTPD_URL/smart/repo.git too-many-refs &&
+	(
+		cd too-many-refs &&
+		git for-each-ref refs/tags >actual &&
+		test_line_count = 2000 actual
+	)
+'
+
+test_expect_success 'large fetch-pack requests can be sent using chunked encoding' '
+	GIT_TRACE_CURL=true git -c http.postbuffer=65536 \
+		clone --bare "$HTTPD_URL/smart/repo.git" split.git 2>err &&
+	{
+		test_have_prereq HTTP2 ||
+		grep "^=> Send header: Transfer-Encoding: chunked" err
+	}
+'
+
+test_expect_success 'test allowreachablesha1inwant' '
+	test_when_finished "rm -rf test_reachable.git" &&
+	server="$HTTPD_DOCUMENT_ROOT_PATH/repo.git" &&
+	main_sha=$(git -C "$server" rev-parse refs/heads/main) &&
+	git -C "$server" config uploadpack.allowreachablesha1inwant 1 &&
+
+	git init --bare test_reachable.git &&
+	git -C test_reachable.git remote add origin "$HTTPD_URL/smart/repo.git" &&
+	git -C test_reachable.git fetch origin "$main_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" &&
+	main_sha=$(git -C "$server" rev-parse refs/heads/main) &&
+	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" &&
+	# Some protocol versions (e.g. 2) support fetching
+	# unadvertised objects, so restrict this test to v0.
+	test_must_fail env GIT_TEST_PROTOCOL_VERSION=0 \
+		git -C test_reachable.git fetch origin "$(git rev-parse HEAD)"
+'
+
+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" &&
+	main_sha=$(git -C "$server" rev-parse refs/heads/main) &&
+	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" &&
+	# Some protocol versions (e.g. 2) support fetching
+	# unadvertised objects, so restrict this test to v0.
+	test_must_fail env GIT_TEST_PROTOCOL_VERSION=0 \
+		git -C test_reachable.git fetch origin "$(git rev-parse HEAD)" &&
+
+	git -C "$server" config uploadpack.allowanysha1inwant 1 &&
+	git -C test_reachable.git fetch origin "$(git rev-parse HEAD)"
+'
+
+test_expect_success EXPENSIVE 'http can handle enormous ref negotiation' '
+	(
+		cd "$HTTPD_DOCUMENT_ROOT_PATH/repo.git" &&
+		create_tags 2001 50000
+	) &&
+	git -C too-many-refs fetch -q --tags &&
+	(
+		cd "$HTTPD_DOCUMENT_ROOT_PATH/repo.git" &&
+		create_tags 50001 100000
+	) &&
+	git -C too-many-refs fetch -q --tags &&
+	git -C too-many-refs for-each-ref refs/tags >tags &&
+	test_line_count = 100000 tags
+'
+
+test_expect_success 'custom http headers' '
+	test_must_fail git -c http.extraheader="x-magic-two: cadabra" \
+		fetch "$HTTPD_URL/smart_headers/repo.git" &&
+	git -c http.extraheader="x-magic-one: abra" \
+	    -c http.extraheader="x-magic-two: cadabra" \
+	    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 \
+		"$HTTPD_URL/smart_headers/repo.git" &&
+	git submodule init sub &&
+	test_must_fail git submodule update sub &&
+	git -c http.extraheader="x-magic-one: abra" \
+	    -c http.extraheader="x-magic-two: cadabra" \
+		submodule update sub
+'
+
+test_expect_success 'using fetch command in remote-curl updates refs' '
+	SERVER="$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 "$SERVER" rev-parse main >expect &&
+	git -C client rev-parse origin/main >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'fetch by SHA-1 without tag following' '
+	SERVER="$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 $(cat bar_hash)
+'
+
+test_expect_success 'cookies are redacted by default' '
+	rm -rf clone &&
+	echo "Set-Cookie: Foo=1" >cookies &&
+	echo "Set-Cookie: Bar=2" >>cookies &&
+	GIT_TRACE_CURL=true \
+		git -c "http.cookieFile=$(pwd)/cookies" clone \
+		$HTTPD_URL/smart/repo.git clone 2>err &&
+	grep -i "Cookie:.*Foo=<redacted>" err &&
+	grep -i "Cookie:.*Bar=<redacted>" err &&
+	! grep -i "Cookie:.*Foo=1" err &&
+	! grep -i "Cookie:.*Bar=2" err
+'
+
+test_expect_success 'empty values of cookies are also redacted' '
+	rm -rf clone &&
+	echo "Set-Cookie: Foo=" >cookies &&
+	GIT_TRACE_CURL=true \
+		git -c "http.cookieFile=$(pwd)/cookies" clone \
+		$HTTPD_URL/smart/repo.git clone 2>err &&
+	grep -i "Cookie:.*Foo=<redacted>" err
+'
+
+test_expect_success 'GIT_TRACE_REDACT=0 disables cookie redaction' '
+	rm -rf clone &&
+	echo "Set-Cookie: Foo=1" >cookies &&
+	echo "Set-Cookie: Bar=2" >>cookies &&
+	GIT_TRACE_REDACT=0 GIT_TRACE_CURL=true \
+		git -c "http.cookieFile=$(pwd)/cookies" clone \
+		$HTTPD_URL/smart/repo.git clone 2>err &&
+	grep -i "Cookie:.*Foo=1" err &&
+	grep -i "Cookie:.*Bar=2" err
+'
+
+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
+'
+
+test_expect_success 'server-side error detected' '
+	test_must_fail git clone $HTTPD_URL/error_smart/repo.git 2>actual &&
+	test_grep "server-side error" actual
+'
+
+test_expect_success 'http auth remembers successful credentials' '
+	rm -f .git-credentials &&
+	test_config credential.helper store &&
+
+	# the first request prompts the user...
+	set_askpass user@host pass@host &&
+	git ls-remote "$HTTPD_URL/auth/smart/repo.git" >/dev/null &&
+	expect_askpass both user@host &&
+
+	# ...and the second one uses the stored value rather than
+	# prompting the user.
+	set_askpass bogus-user bogus-pass &&
+	git ls-remote "$HTTPD_URL/auth/smart/repo.git" >/dev/null &&
+	expect_askpass none
+'
+
+test_expect_success 'http auth forgets bogus credentials' '
+	# seed credential store with bogus values. In real life,
+	# this would probably come from a password which worked
+	# for a previous request.
+	rm -f .git-credentials &&
+	test_config credential.helper store &&
+	{
+		echo "url=$HTTPD_URL" &&
+		echo "username=bogus" &&
+		echo "password=bogus"
+	} | git credential approve &&
+
+	# we expect this to use the bogus values and fail, never even
+	# prompting the user...
+	set_askpass user@host pass@host &&
+	test_must_fail git ls-remote "$HTTPD_URL/auth/smart/repo.git" >/dev/null &&
+	expect_askpass none &&
+
+	# ...but now we should have forgotten the bad value, causing
+	# us to prompt the user again.
+	set_askpass user@host pass@host &&
+	git ls-remote "$HTTPD_URL/auth/smart/repo.git" >/dev/null &&
+	expect_askpass both user@host
+'
+
+test_expect_success 'client falls back from v2 to v0 to match server' '
+	GIT_TRACE_PACKET=$PWD/trace \
+	GIT_TEST_PROTOCOL_VERSION=2 \
+	git clone $HTTPD_URL/smart_v0/repo.git repo-v0 &&
+	# check for v0; there the HEAD symref is communicated in the capability
+	# line; v2 uses a different syntax on each ref advertisement line
+	grep symref=HEAD:refs/heads/ trace
+'
+
+test_expect_success 'create empty http-accessible SHA-256 repository' '
+	mkdir "$HTTPD_DOCUMENT_ROOT_PATH/sha256.git" &&
+	(cd "$HTTPD_DOCUMENT_ROOT_PATH/sha256.git" &&
+	 git --bare init --object-format=sha256
+	)
+'
+
+test_expect_success 'clone empty SHA-256 repository with protocol v2' '
+	rm -fr sha256 &&
+	echo sha256 >expected &&
+	git -c protocol.version=2 clone "$HTTPD_URL/smart/sha256.git" &&
+	git -C sha256 rev-parse --show-object-format >actual &&
+	test_cmp actual expected &&
+	git ls-remote "$HTTPD_URL/smart/sha256.git" >actual &&
+	test_must_be_empty actual
+'
+
+test_expect_success 'clone empty SHA-256 repository with protocol v0' '
+	rm -fr sha256 &&
+	echo sha256 >expected &&
+	GIT_TRACE=1 GIT_TRACE_PACKET=1 git -c protocol.version=0 clone "$HTTPD_URL/smart/sha256.git" &&
+	git -C sha256 rev-parse --show-object-format >actual &&
+	test_cmp actual expected &&
+	git ls-remote "$HTTPD_URL/smart/sha256.git" >actual &&
+	test_must_be_empty actual
+'
+
+test_expect_success 'passing hostname resolution information works' '
+	BOGUS_HOST=gitbogusexamplehost.invalid &&
+	BOGUS_HTTPD_URL=$HTTPD_PROTO://$BOGUS_HOST:$LIB_HTTPD_PORT &&
+	test_must_fail git ls-remote "$BOGUS_HTTPD_URL/smart/repo.git" >/dev/null &&
+	git -c "http.curloptResolve=$BOGUS_HOST:$LIB_HTTPD_PORT:127.0.0.1" ls-remote "$BOGUS_HTTPD_URL/smart/repo.git" >/dev/null
+'
+
+# here user%40host is the URL-encoded version of user@host,
+# which is our intentionally-odd username to catch parsing errors
+url_user=$HTTPD_URL_USER/auth/smart/repo.git
+url_userpass=$HTTPD_URL_USER_PASS/auth/smart/repo.git
+url_userblank=$HTTPD_PROTO://user%40host:@$HTTPD_DEST/auth/smart/repo.git
+message="URL .*:<redacted>@.* uses plaintext credentials"
+
+test_expect_success 'clone warns or fails when using username:password' '
+	test_when_finished "rm -rf attempt*" &&
+
+	git -c transfer.credentialsInUrl=allow \
+		clone $url_userpass attempt1 2>err &&
+	! grep "$message" err &&
+
+	git -c transfer.credentialsInUrl=warn \
+		clone $url_userpass attempt2 2>err &&
+	grep "warning: $message" err >warnings &&
+	test_line_count -ge 1 warnings &&
+
+	test_must_fail git -c transfer.credentialsInUrl=die \
+		clone $url_userpass attempt3 2>err &&
+	grep "fatal: $message" err >warnings &&
+	test_line_count -ge 1 warnings &&
+
+	test_must_fail git -c transfer.credentialsInUrl=die \
+		clone $url_userblank attempt4 2>err &&
+	grep "fatal: $message" err >warnings &&
+	test_line_count -ge 1 warnings
+'
+
+test_expect_success 'clone does not detect username:password when it is https://username@domain:port/' '
+	test_when_finished "rm -rf attempt1" &&
+
+	# we are relying on lib-httpd for url construction, so document our
+	# assumptions
+	case "$HTTPD_URL_USER" in
+	*:[0-9]*) : ok ;;
+	*) BUG "httpd url does not have port: $HTTPD_URL_USER"
+	esac &&
+
+	git -c transfer.credentialsInUrl=warn clone $url_user attempt1 2>err &&
+	! grep "uses plaintext credentials" err
+'
+
+test_expect_success 'fetch warns or fails when using username:password' '
+	git -c transfer.credentialsInUrl=allow fetch $url_userpass 2>err &&
+	! grep "$message" err &&
+
+	git -c transfer.credentialsInUrl=warn fetch $url_userpass 2>err &&
+	grep "warning: $message" err >warnings &&
+	test_line_count -ge 1 warnings &&
+
+	test_must_fail git -c transfer.credentialsInUrl=die \
+		fetch $url_userpass 2>err &&
+	grep "fatal: $message" err >warnings &&
+	test_line_count -ge 1 warnings &&
+
+	test_must_fail git -c transfer.credentialsInUrl=die \
+		fetch $url_userblank 2>err &&
+	grep "fatal: $message" err >warnings &&
+	test_line_count -ge 1 warnings
+'
+
+
+test_expect_success 'push warns or fails when using username:password' '
+	git -c transfer.credentialsInUrl=allow push $url_userpass 2>err &&
+	! grep "$message" err &&
+
+	git -c transfer.credentialsInUrl=warn push $url_userpass 2>err &&
+	grep "warning: $message" err >warnings &&
+
+	test_must_fail git -c transfer.credentialsInUrl=die \
+		push $url_userpass 2>err &&
+	grep "fatal: $message" err >warnings &&
+	test_line_count -ge 1 warnings
+'
+
+test_expect_success 'no empty path components' '
+	# In the URL, add a trailing slash, and see if git appends yet another
+	# slash.
+	git clone $HTTPD_URL/smart/repo.git/ clone-with-slash &&
+
+	strip_access_log >log &&
+	! grep "//" log
+'
+
+test_done