t/t5551-http-fetch-smart.sh - git - Git at Google

 #!/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' '
 	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 master:master
 '

 setup_askpass_helper

 cat >exp <<EOF
 > GET /smart/repo.git/info/refs?service=git-upload-pack HTTP/1.1
 > Accept: */*
 > Accept-Encoding: gzip
 > 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: gzip
 > 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
 test_expect_success 'clone http repository' '
 	GIT_TRACE_CURL=true git clone --quiet $HTTPD_URL/smart/repo.git clone 2>err &&
 	test_cmp file clone/file &&
 	tr '\''\015'\'' Q <err |
 	sed -e "
 		s/Q\$//
 		/^[*] /d
 		/^== Info:/d
 		/^=> Send header, /d
 		/^=> Send header:$/d
 		/^<= Recv header, /d
 		/^<= Recv header:$/d
 		s/=> Send header: //
 		s/= Recv header://
 		/^<= Recv data/d
 		/^=> Send data/d
 		/^$/d
 		/^< $/d

 		/^[^><]/{
 			s/^/> /
 		}

 		/^> 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
 	" >act &&
 	test_cmp exp act
 '

 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
 '

 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
 test_expect_success 'used upload-pack service' '
 	sed -e "
 		s/^.* \"//
 		s/\"//
 		s/ [1-9][0-9]*\$//
 		s/^GET /GET  /
 	" >act <"$HTTPD_ROOT_PATH"/access.log &&
 	test_cmp exp act
 '

 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 &&
 	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 '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 &&
 	grep "not valid:" actual
 '

 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
 '

 cat >cookies.txt <<EOF
 127.0.0.1	FALSE	/smart_cookies/	FALSE	0	othername	othervalue
 EOF
 cat >expect_cookies.txt <<EOF

 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
 test_expect_success 'cookies stored in http.cookiefile when http.savecookies set' '
 	git config http.cookiefile cookies.txt &&
 	git config http.savecookies true &&
 	git ls-remote $HTTPD_URL/smart_cookies/repo.git master &&
 	tail -3 cookies.txt >cookies_tail.txt &&
 	test_cmp expect_cookies.txt cookies_tail.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 split across POSTs' '
 	GIT_TRACE_CURL=true git -c http.postbuffer=65536 \
 		clone --bare "$HTTPD_URL/smart/repo.git" split.git 2>err &&
 	grep "^=> Send header: POST" err >posts &&
 	test_line_count = 2 posts
 '

 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 "$HTTPD_URL/smart/repo.git" &&
 	test_must_fail git -C test_reachable.git fetch origin "$(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="$HTTPD_DOCUMENT_ROOT_PATH/repo.git" &&
 	master_sha=$(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 "$HTTPD_URL/smart/repo.git" &&
 	test_must_fail git -C test_reachable.git fetch origin "$(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 '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
 '

 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
 '

 stop_httpd
 test_done
	#!/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' '
	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 master:master
	'

	setup_askpass_helper

	cat >exp <<EOF
	> GET /smart/repo.git/info/refs?service=git-upload-pack HTTP/1.1
	> Accept: /
	> Accept-Encoding: gzip
	> 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: gzip
	> 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
	test_expect_success 'clone http repository' '
	GIT_TRACE_CURL=true git clone --quiet $HTTPD_URL/smart/repo.git clone 2>err &&
	test_cmp file clone/file &&
	tr '\''\015'\'' Q <err \|
	sed -e "
	s/Q\$//
	/^[*] /d
	/^== Info:/d
	/^=> Send header, /d
	/^=> Send header:$/d
	/^<= Recv header, /d
	/^<= Recv header:$/d
	s/=> Send header: //
	s/= Recv header://
	/^<= Recv data/d
	/^=> Send data/d
	/^$/d
	/^< $/d

	/^[^><]/{
	s/^/> /
	}

	/^> 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
	" >act &&
	test_cmp exp act
	'

	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
	'

	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
	test_expect_success 'used upload-pack service' '
	sed -e "
	s/^.* \"//
	s/\"//
	s/ [1-9][0-9]*\$//
	s/^GET /GET /
	" >act <"$HTTPD_ROOT_PATH"/access.log &&
	test_cmp exp act
	'

	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 &&
	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 '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 &&
	grep "not valid:" actual
	'

	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
	'

	cat >cookies.txt <<EOF
	127.0.0.1 FALSE /smart_cookies/ FALSE 0 othername othervalue
	EOF
	cat >expect_cookies.txt <<EOF

	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
	test_expect_success 'cookies stored in http.cookiefile when http.savecookies set' '
	git config http.cookiefile cookies.txt &&
	git config http.savecookies true &&
	git ls-remote $HTTPD_URL/smart_cookies/repo.git master &&
	tail -3 cookies.txt >cookies_tail.txt &&
	test_cmp expect_cookies.txt cookies_tail.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 split across POSTs' '
	GIT_TRACE_CURL=true git -c http.postbuffer=65536 \
	clone --bare "$HTTPD_URL/smart/repo.git" split.git 2>err &&
	grep "^=> Send header: POST" err >posts &&
	test_line_count = 2 posts
	'

	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 "$HTTPD_URL/smart/repo.git" &&
	test_must_fail git -C test_reachable.git fetch origin "$(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="$HTTPD_DOCUMENT_ROOT_PATH/repo.git" &&
	master_sha=$(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 "$HTTPD_URL/smart/repo.git" &&
	test_must_fail git -C test_reachable.git fetch origin "$(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 '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
	'

	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
	'

	stop_httpd
	test_done