[thirdparty/git.git] / t / t5550-http-fetch-dumb.sh

#!/bin/sh

test_description='test dumb fetching over http via static file'
GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME

. ./test-lib.sh

if test_have_prereq !REFFILES
then
	skip_all='skipping test; dumb HTTP protocol not supported with reftable.'
	test_done
fi

. "$TEST_DIRECTORY"/lib-httpd.sh
start_httpd

test_expect_success 'setup repository' '
	git config push.default matching &&
	echo content1 >file &&
	git add file &&
	git commit -m one &&
	echo content2 >file &&
	git add file &&
	git commit -m two
'

test_expect_success 'packfile without repository does not crash' '
	echo "fatal: not a git repository" >expect &&
	test_must_fail nongit git http-fetch --packfile=abc 2>err &&
	test_cmp expect err
'

setup_post_update_server_info_hook () {
	test_hook --setup -C "$1" post-update <<-\EOF &&
	exec git update-server-info
	EOF
	git -C "$1" update-server-info
}

test_expect_success 'create http-accessible bare repository with loose objects' '
	cp -R .git "$HTTPD_DOCUMENT_ROOT_PATH/repo.git" &&
	git -C "$HTTPD_DOCUMENT_ROOT_PATH/repo.git" config core.bare true &&
	setup_post_update_server_info_hook "$HTTPD_DOCUMENT_ROOT_PATH/repo.git" &&
	git remote add public "$HTTPD_DOCUMENT_ROOT_PATH/repo.git" &&
	git push public main:main
'

test_expect_success 'clone http repository' '
	git clone $HTTPD_URL/dumb/repo.git clone-tmpl &&
	cp -R clone-tmpl clone &&
	test_cmp file clone/file
'

test_expect_success 'list refs from outside any repository' '
	cat >expect <<-EOF &&
	$(git rev-parse main)	HEAD
	$(git rev-parse main)	refs/heads/main
	EOF
	nongit git ls-remote "$HTTPD_URL/dumb/repo.git" >actual &&
	test_cmp expect actual
'


test_expect_success 'list detached HEAD from outside any repository' '
	git clone --mirror "$HTTPD_DOCUMENT_ROOT_PATH/repo.git" \
		"$HTTPD_DOCUMENT_ROOT_PATH/repo-detached.git" &&
	git -C "$HTTPD_DOCUMENT_ROOT_PATH/repo-detached.git" \
		update-ref --no-deref HEAD refs/heads/main &&
	git -C "$HTTPD_DOCUMENT_ROOT_PATH/repo-detached.git" update-server-info &&
	cat >expect <<-EOF &&
	$(git rev-parse main)	HEAD
	$(git rev-parse main)	refs/heads/main
	EOF
	nongit git ls-remote "$HTTPD_URL/dumb/repo-detached.git" >actual &&
	test_cmp expect actual
'

test_expect_success 'create password-protected repository' '
	mkdir -p "$HTTPD_DOCUMENT_ROOT_PATH/auth/dumb/" &&
	cp -Rf "$HTTPD_DOCUMENT_ROOT_PATH/repo.git" \
	       "$HTTPD_DOCUMENT_ROOT_PATH/auth/dumb/repo.git"
'

test_expect_success 'create empty remote repository' '
	git init --bare "$HTTPD_DOCUMENT_ROOT_PATH/empty.git" &&
	setup_post_update_server_info_hook "$HTTPD_DOCUMENT_ROOT_PATH/empty.git"
'

test_expect_success 'empty dumb HTTP repository falls back to SHA1' '
	test_when_finished "rm -fr clone-empty" &&
	git clone $HTTPD_URL/dumb/empty.git clone-empty &&
	git -C clone-empty rev-parse --show-object-format >empty-format &&
	test "$(cat empty-format)" = sha1
'

setup_askpass_helper

test_expect_success 'cloning password-protected repository can fail' '
	set_askpass wrong &&
	test_must_fail git clone "$HTTPD_URL/auth/dumb/repo.git" clone-auth-fail &&
	expect_askpass both wrong
'

test_expect_success 'http auth can use user/pass in URL' '
	set_askpass wrong &&
	git clone "$HTTPD_URL_USER_PASS/auth/dumb/repo.git" clone-auth-none &&
	expect_askpass none
'

test_expect_success 'http auth can use just user in URL' '
	set_askpass wrong pass@host &&
	git clone "$HTTPD_URL_USER/auth/dumb/repo.git" clone-auth-pass &&
	expect_askpass pass user%40host
'

test_expect_success 'http auth can request both user and pass' '
	set_askpass user@host pass@host &&
	git clone "$HTTPD_URL/auth/dumb/repo.git" clone-auth-both &&
	expect_askpass both user%40host
'

test_expect_success 'http auth respects credential helper config' '
	test_config_global credential.helper "!f() {
		cat >/dev/null
		echo username=user@host
		echo password=pass@host
	}; f" &&
	set_askpass wrong &&
	git clone "$HTTPD_URL/auth/dumb/repo.git" clone-auth-helper &&
	expect_askpass none
'

test_expect_success 'http auth can get username from config' '
	test_config_global "credential.$HTTPD_URL.username" user@host &&
	set_askpass wrong pass@host &&
	git clone "$HTTPD_URL/auth/dumb/repo.git" clone-auth-user &&
	expect_askpass pass user%40host
'

test_expect_success 'configured username does not override URL' '
	test_config_global "credential.$HTTPD_URL.username" wrong &&
	set_askpass wrong pass@host &&
	git clone "$HTTPD_URL_USER/auth/dumb/repo.git" clone-auth-user2 &&
	expect_askpass pass user%40host
'

test_expect_success 'set up repo with http submodules' '
	git init super &&
	set_askpass user@host pass@host &&
	(
		cd super &&
		git submodule add "$HTTPD_URL/auth/dumb/repo.git" sub &&
		git commit -m "add submodule"
	)
'

test_expect_success 'cmdline credential config passes to submodule via clone' '
	set_askpass wrong pass@host &&
	test_must_fail git clone --recursive super super-clone &&
	rm -rf super-clone &&

	set_askpass wrong pass@host &&
	git -c "credential.$HTTPD_URL.username=user@host" \
		clone --recursive super super-clone &&
	expect_askpass pass user%40host
'

test_expect_success 'cmdline credential config passes submodule via fetch' '
	set_askpass wrong pass@host &&
	test_must_fail git -C super-clone fetch --recurse-submodules &&

	set_askpass wrong pass@host &&
	git -C super-clone \
	    -c "credential.$HTTPD_URL.username=user@host" \
	    fetch --recurse-submodules &&
	expect_askpass pass user%40host
'

test_expect_success 'cmdline credential config passes submodule update' '
	# advance the submodule HEAD so that a fetch is required
	git commit --allow-empty -m foo &&
	git push "$HTTPD_DOCUMENT_ROOT_PATH/auth/dumb/repo.git" HEAD &&
	sha1=$(git rev-parse HEAD) &&
	git -C super-clone update-index --cacheinfo 160000,$sha1,sub &&

	set_askpass wrong pass@host &&
	test_must_fail git -C super-clone submodule update &&

	set_askpass wrong pass@host &&
	git -C super-clone \
	    -c "credential.$HTTPD_URL.username=user@host" \
	    submodule update &&
	expect_askpass pass user%40host
'

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 'fetch changes via manual http-fetch' '
	cp -R clone-tmpl clone2 &&

	HEAD=$(git rev-parse --verify HEAD) &&
	(cd clone2 &&
	 git http-fetch -a -w heads/main-new $HEAD $(git config remote.origin.url) &&
	 git checkout main-new &&
	 test $HEAD = $(git rev-parse --verify HEAD)) &&
	test_cmp file clone2/file
'

test_expect_success 'manual http-fetch without -a works just as well' '
	cp -R clone-tmpl clone3 &&

	HEAD=$(git rev-parse --verify HEAD) &&
	(cd clone3 &&
	 git http-fetch -w heads/main-new $HEAD $(git config remote.origin.url) &&
	 git checkout main-new &&
	 test $HEAD = $(git rev-parse --verify HEAD)) &&
	test_cmp file clone3/file
'

test_expect_success 'http remote detects correct HEAD' '
	git push public main:other &&
	(cd clone &&
	 git remote set-head origin -d &&
	 git remote set-head origin -a &&
	 git symbolic-ref refs/remotes/origin/HEAD > output &&
	 echo refs/remotes/origin/main > expect &&
	 test_cmp expect output
	)
'

test_expect_success 'fetch packed objects' '
	cp -R "$HTTPD_DOCUMENT_ROOT_PATH"/repo.git "$HTTPD_DOCUMENT_ROOT_PATH"/repo_pack.git &&
	(cd "$HTTPD_DOCUMENT_ROOT_PATH"/repo_pack.git &&
	 git --bare repack -a -d
	) &&
	git clone $HTTPD_URL/dumb/repo_pack.git
'

test_expect_success 'http-fetch --packfile' '
	# Arbitrary hash. Use rev-parse so that we get one of the correct
	# length.
	ARBITRARY=$(git -C "$HTTPD_DOCUMENT_ROOT_PATH"/repo_pack.git rev-parse HEAD) &&

	git init packfileclient &&
	p=$(cd "$HTTPD_DOCUMENT_ROOT_PATH"/repo_pack.git && ls objects/pack/pack-*.pack) &&
	git -C packfileclient http-fetch --packfile=$ARBITRARY \
		--index-pack-arg=index-pack --index-pack-arg=--stdin \
		--index-pack-arg=--keep \
		"$HTTPD_URL"/dumb/repo_pack.git/$p >out &&

	grep -E "^keep.[0-9a-f]{16,}$" out &&
	cut -c6- out >packhash &&

	# Ensure that the expected files are generated
	test -e "packfileclient/.git/objects/pack/pack-$(cat packhash).pack" &&
	test -e "packfileclient/.git/objects/pack/pack-$(cat packhash).idx" &&
	test -e "packfileclient/.git/objects/pack/pack-$(cat packhash).keep" &&

	# Ensure that it has the HEAD of repo_pack, at least
	HASH=$(git -C "$HTTPD_DOCUMENT_ROOT_PATH"/repo_pack.git rev-parse HEAD) &&
	git -C packfileclient cat-file -e "$HASH"
'

test_expect_success 'fetch notices corrupt pack' '
	cp -R "$HTTPD_DOCUMENT_ROOT_PATH"/repo_pack.git "$HTTPD_DOCUMENT_ROOT_PATH"/repo_bad1.git &&
	(cd "$HTTPD_DOCUMENT_ROOT_PATH"/repo_bad1.git &&
	 p=$(ls objects/pack/pack-*.pack) &&
	 chmod u+w $p &&
	 printf %0256d 0 | dd of=$p bs=256 count=1 seek=1 conv=notrunc
	) &&
	mkdir repo_bad1.git &&
	(cd repo_bad1.git &&
	 git --bare init &&
	 test_must_fail git --bare fetch $HTTPD_URL/dumb/repo_bad1.git &&
	 test 0 = $(ls objects/pack/pack-*.pack | wc -l)
	)
'

test_expect_success 'http-fetch --packfile with corrupt pack' '
	rm -rf packfileclient &&
	git init packfileclient &&
	p=$(cd "$HTTPD_DOCUMENT_ROOT_PATH"/repo_bad1.git && ls objects/pack/pack-*.pack) &&
	test_must_fail git -C packfileclient http-fetch --packfile \
		"$HTTPD_URL"/dumb/repo_bad1.git/$p
'

test_expect_success 'fetch notices corrupt idx' '
	cp -R "$HTTPD_DOCUMENT_ROOT_PATH"/repo_pack.git "$HTTPD_DOCUMENT_ROOT_PATH"/repo_bad2.git &&
	(cd "$HTTPD_DOCUMENT_ROOT_PATH"/repo_bad2.git &&
	 p=$(ls objects/pack/pack-*.idx) &&
	 chmod u+w $p &&
	 printf %0256d 0 | dd of=$p bs=256 count=1 seek=1 conv=notrunc
	) &&
	mkdir repo_bad2.git &&
	(cd repo_bad2.git &&
	 git --bare init &&
	 test_must_fail git --bare fetch $HTTPD_URL/dumb/repo_bad2.git &&
	 test 0 = $(ls objects/pack | wc -l)
	)
'

# usage: count_fetches <nr> <extension> <trace_file>
count_fetches () {
	# ignore grep exit code; it may return non-zero if we are expecting no
	# matches
	grep "GET .*objects/pack/pack-[a-z0-9]*.$2" "$3" >trace.count
	test_line_count = "$1" trace.count
}

test_expect_success 'fetch can handle previously-fetched .idx files' '
	git checkout --orphan branch1 &&
	echo base >file &&
	git add file &&
	git commit -m base &&
	git --bare init "$HTTPD_DOCUMENT_ROOT_PATH"/repo_packed_branches.git &&
	git push "$HTTPD_DOCUMENT_ROOT_PATH"/repo_packed_branches.git branch1 &&
	git --git-dir="$HTTPD_DOCUMENT_ROOT_PATH"/repo_packed_branches.git repack -d &&
	git checkout -b branch2 branch1 &&
	echo b2 >>file &&
	git commit -a -m b2 &&
	git push "$HTTPD_DOCUMENT_ROOT_PATH"/repo_packed_branches.git branch2 &&
	git --git-dir="$HTTPD_DOCUMENT_ROOT_PATH"/repo_packed_branches.git repack -d &&
	git --bare init clone_packed_branches.git &&
	GIT_TRACE_CURL=$PWD/one.trace git --git-dir=clone_packed_branches.git \
		fetch "$HTTPD_URL"/dumb/repo_packed_branches.git branch1:branch1 &&
	count_fetches 2 idx one.trace &&
	count_fetches 1 pack one.trace &&
	GIT_TRACE_CURL=$PWD/two.trace git --git-dir=clone_packed_branches.git \
		fetch "$HTTPD_URL"/dumb/repo_packed_branches.git branch2:branch2 &&
	count_fetches 1 idx two.trace &&
	count_fetches 1 pack two.trace
'

test_expect_success 'did not use upload-pack service' '
	! grep "/git-upload-pack" "$HTTPD_ROOT_PATH/access.log"
'

test_expect_success 'git client shows text/plain errors' '
	test_must_fail git clone "$HTTPD_URL/error/text" 2>stderr &&
	grep "this is the error message" stderr
'

test_expect_success 'git client does not show html errors' '
	test_must_fail git clone "$HTTPD_URL/error/html" 2>stderr &&
	! grep "this is the error message" stderr
'

test_expect_success 'git client shows text/plain with a charset' '
	test_must_fail git clone "$HTTPD_URL/error/charset" 2>stderr &&
	grep "this is the error message" stderr
'

test_expect_success ICONV 'http error messages are reencoded' '
	test_must_fail git clone "$HTTPD_URL/error/utf16" 2>stderr &&
	grep "this is the error message" stderr
'

test_expect_success ICONV 'reencoding is robust to whitespace oddities' '
	test_must_fail git clone "$HTTPD_URL/error/odd-spacing" 2>stderr &&
	grep "this is the error message" stderr
'

check_language () {
	case "$2" in
	'')
		>expect
		;;
	?*)
		echo "=> Send header: Accept-Language: $1" >expect
		;;
	esac &&
	GIT_TRACE_CURL=true \
	LANGUAGE=$2 \
	git ls-remote "$HTTPD_URL/dumb/repo.git" >output 2>&1 &&
	tr -d '\015' <output |
	sort -u |
	sed -ne '/^=> Send header: Accept-Language:/ p' >actual &&
	test_cmp expect actual
}

test_expect_success 'git client sends Accept-Language based on LANGUAGE' '
	check_language "ko-KR, *;q=0.9" ko_KR.UTF-8'

test_expect_success 'git client sends Accept-Language correctly with unordinary LANGUAGE' '
	check_language "ko-KR, *;q=0.9" "ko_KR:" &&
	check_language "ko-KR, en-US;q=0.9, *;q=0.8" "ko_KR::en_US" &&
	check_language "ko-KR, *;q=0.9" ":::ko_KR" &&
	check_language "ko-KR, en-US;q=0.9, *;q=0.8" "ko_KR!!:en_US" &&
	check_language "ko-KR, ja-JP;q=0.9, *;q=0.8" "ko_KR en_US:ja_JP"'

test_expect_success 'git client sends Accept-Language with many preferred languages' '
	check_language "ko-KR, en-US;q=0.9, fr-CA;q=0.8, de;q=0.7, sr;q=0.6, \
ja;q=0.5, zh;q=0.4, sv;q=0.3, pt;q=0.2, *;q=0.1" \
		ko_KR.EUC-KR:en_US.UTF-8:fr_CA:de.UTF-8@euro:sr@latin:ja:zh:sv:pt &&
	check_language "ko-KR, en-US;q=0.99, fr-CA;q=0.98, de;q=0.97, sr;q=0.96, \
ja;q=0.95, zh;q=0.94, sv;q=0.93, pt;q=0.92, nb;q=0.91, *;q=0.90" \
		ko_KR.EUC-KR:en_US.UTF-8:fr_CA:de.UTF-8@euro:sr@latin:ja:zh:sv:pt:nb
'

test_expect_success 'git client send an empty Accept-Language' '
	GIT_TRACE_CURL=true LANGUAGE= git ls-remote "$HTTPD_URL/dumb/repo.git" 2>stderr &&
	! grep "^=> Send header: Accept-Language:" stderr
'

test_expect_success 'remote-http complains cleanly about malformed urls' '
	test_must_fail git remote-http http::/example.com/repo.git 2>stderr &&
	test_grep "url has no scheme" stderr
'

# NEEDSWORK: Writing commands to git-remote-curl can race against the latter
# erroring out, producing SIGPIPE. Remove "ok=sigpipe" once transport-helper has
# learned to handle early remote helper failures more cleanly.
test_expect_success 'remote-http complains cleanly about empty scheme' '
	test_must_fail ok=sigpipe git ls-remote \
		http::${HTTPD_URL#http}/dumb/repo.git 2>stderr &&
	test_grep "url has no scheme" stderr
'

test_expect_success 'redirects can be forbidden/allowed' '
	test_must_fail git -c http.followRedirects=false \
		clone $HTTPD_URL/dumb-redir/repo.git dumb-redir &&
	git -c http.followRedirects=true \
		clone $HTTPD_URL/dumb-redir/repo.git dumb-redir 2>stderr
'

test_expect_success 'redirects are reported to stderr' '
	# just look for a snippet of the redirected-to URL
	test_grep /dumb/ stderr
'

test_expect_success 'non-initial redirects can be forbidden' '
	test_must_fail git -c http.followRedirects=initial \
		clone $HTTPD_URL/redir-objects/repo.git redir-objects &&
	git -c http.followRedirects=true \
		clone $HTTPD_URL/redir-objects/repo.git redir-objects
'

test_expect_success 'http.followRedirects defaults to "initial"' '
	test_must_fail git clone $HTTPD_URL/redir-objects/repo.git default
'

# The goal is for a clone of the "evil" repository, which has no objects
# itself, to cause the client to fetch objects from the "victim" repository.
test_expect_success 'set up evil alternates scheme' '
	victim=$HTTPD_DOCUMENT_ROOT_PATH/victim.git &&
	git init --bare "$victim" &&
	git -C "$victim" --work-tree=. commit --allow-empty -m secret &&
	git -C "$victim" repack -ad &&
	git -C "$victim" update-server-info &&
	sha1=$(git -C "$victim" rev-parse HEAD) &&

	evil=$HTTPD_DOCUMENT_ROOT_PATH/evil.git &&
	git init --template= --bare "$evil" &&
	mkdir "$evil/info" &&
	# do this by hand to avoid object existence check
	printf "%s\\t%s\\n" $sha1 refs/heads/main >"$evil/info/refs"
'

# Here we'll just redirect via HTTP. In a real-world attack these would be on
# different servers, but we should reject it either way.
test_expect_success 'http-alternates is a non-initial redirect' '
	echo "$HTTPD_URL/dumb/victim.git/objects" \
		>"$evil/objects/info/http-alternates" &&
	test_must_fail git -c http.followRedirects=initial \
		clone $HTTPD_URL/dumb/evil.git evil-initial &&
	git -c http.followRedirects=true \
		clone $HTTPD_URL/dumb/evil.git evil-initial
'

# Curl supports a lot of protocols that we'd prefer not to allow
# http-alternates to use, but it's hard to test whether curl has
# accessed, say, the SMTP protocol, because we are not running an SMTP server.
# But we can check that it does not allow access to file://, which would
# otherwise allow this clone to complete.
test_expect_success 'http-alternates cannot point at funny protocols' '
	echo "file://$victim/objects" >"$evil/objects/info/http-alternates" &&
	test_must_fail git -c http.followRedirects=true \
		clone "$HTTPD_URL/dumb/evil.git" evil-file
'

test_expect_success 'http-alternates triggers not-from-user protocol check' '
	echo "$HTTPD_URL/dumb/victim.git/objects" \
		>"$evil/objects/info/http-alternates" &&
	test_config_global http.followRedirects true &&
	test_must_fail git -c protocol.http.allow=user \
		clone $HTTPD_URL/dumb/evil.git evil-user &&
	git -c protocol.http.allow=always \
		clone $HTTPD_URL/dumb/evil.git evil-user
'

test_expect_success 'can redirect through non-"info/refs?service=git-upload-pack" URL' '
	git clone "$HTTPD_URL/redir-to/dumb/repo.git"
'

test_expect_success 'print HTTP error when any intermediate redirect throws error' '
	test_must_fail git clone "$HTTPD_URL/redir-to/502" 2> stderr &&
	test_grep "unable to access.*/redir-to/502" stderr
'

test_expect_success 'fetching via http alternates works' '
	parent=$HTTPD_DOCUMENT_ROOT_PATH/alt-parent.git &&
	git init --bare "$parent" &&
	git -C "$parent" --work-tree=. commit --allow-empty -m foo &&
	git -C "$parent" update-server-info &&
	commit=$(git -C "$parent" rev-parse HEAD) &&

	child=$HTTPD_DOCUMENT_ROOT_PATH/alt-child.git &&
	git init --bare "$child" &&
	echo "../../alt-parent.git/objects" >"$child/objects/info/alternates" &&
	git -C "$child" update-ref HEAD $commit &&
	git -C "$child" update-server-info &&

	git -c http.followredirects=true clone "$HTTPD_URL/dumb/alt-child.git"
'

test_expect_success 'dumb http can fetch index v1' '
	server=$HTTPD_DOCUMENT_ROOT_PATH/idx-v1.git &&
	git init --bare "$server" &&
	git -C "$server" --work-tree=. commit --allow-empty -m foo &&
	git -C "$server" -c pack.indexVersion=1 gc &&

	git clone "$HTTPD_URL/dumb/idx-v1.git" &&
	git -C idx-v1 fsck
'

test_done
Commit	Line	Data
	1	#!/bin/sh
	2
	3	test_description='test dumb fetching over http via static file'
	4	GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
	5	export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
	6
	7	. ./test-lib.sh
	8
	9	if test_have_prereq !REFFILES
	10	then
	11	skip_all='skipping test; dumb HTTP protocol not supported with reftable.'
	12	test_done
	13	fi
	14
	15	. "$TEST_DIRECTORY"/lib-httpd.sh
	16	start_httpd
	17
	18	test_expect_success 'setup repository' '
	19	git config push.default matching &&
	20	echo content1 >file &&
	21	git add file &&
	22	git commit -m one &&
	23	echo content2 >file &&
	24	git add file &&
	25	git commit -m two
	26	'
	27
	28	test_expect_success 'packfile without repository does not crash' '
	29	echo "fatal: not a git repository" >expect &&
	30	test_must_fail nongit git http-fetch --packfile=abc 2>err &&
	31	test_cmp expect err
	32	'
	33
	34	setup_post_update_server_info_hook () {
	35	test_hook --setup -C "$1" post-update <<-\EOF &&
	36	exec git update-server-info
	37	EOF
	38	git -C "$1" update-server-info
	39	}
	40
	41	test_expect_success 'create http-accessible bare repository with loose objects' '
	42	cp -R .git "$HTTPD_DOCUMENT_ROOT_PATH/repo.git" &&
	43	git -C "$HTTPD_DOCUMENT_ROOT_PATH/repo.git" config core.bare true &&
	44	setup_post_update_server_info_hook "$HTTPD_DOCUMENT_ROOT_PATH/repo.git" &&
	45	git remote add public "$HTTPD_DOCUMENT_ROOT_PATH/repo.git" &&
	46	git push public main:main
	47	'
	48
	49	test_expect_success 'clone http repository' '
	50	git clone $HTTPD_URL/dumb/repo.git clone-tmpl &&
	51	cp -R clone-tmpl clone &&
	52	test_cmp file clone/file
	53	'
	54
	55	test_expect_success 'list refs from outside any repository' '
	56	cat >expect <<-EOF &&
	57	$(git rev-parse main) HEAD
	58	$(git rev-parse main) refs/heads/main
	59	EOF
	60	nongit git ls-remote "$HTTPD_URL/dumb/repo.git" >actual &&
	61	test_cmp expect actual
	62	'
	63
	64
	65	test_expect_success 'list detached HEAD from outside any repository' '
	66	git clone --mirror "$HTTPD_DOCUMENT_ROOT_PATH/repo.git" \
	67	"$HTTPD_DOCUMENT_ROOT_PATH/repo-detached.git" &&
	68	git -C "$HTTPD_DOCUMENT_ROOT_PATH/repo-detached.git" \
	69	update-ref --no-deref HEAD refs/heads/main &&
	70	git -C "$HTTPD_DOCUMENT_ROOT_PATH/repo-detached.git" update-server-info &&
	71	cat >expect <<-EOF &&
	72	$(git rev-parse main) HEAD
	73	$(git rev-parse main) refs/heads/main
	74	EOF
	75	nongit git ls-remote "$HTTPD_URL/dumb/repo-detached.git" >actual &&
	76	test_cmp expect actual
	77	'
	78
	79	test_expect_success 'create password-protected repository' '
	80	mkdir -p "$HTTPD_DOCUMENT_ROOT_PATH/auth/dumb/" &&
	81	cp -Rf "$HTTPD_DOCUMENT_ROOT_PATH/repo.git" \
	82	"$HTTPD_DOCUMENT_ROOT_PATH/auth/dumb/repo.git"
	83	'
	84
	85	test_expect_success 'create empty remote repository' '
	86	git init --bare "$HTTPD_DOCUMENT_ROOT_PATH/empty.git" &&
	87	setup_post_update_server_info_hook "$HTTPD_DOCUMENT_ROOT_PATH/empty.git"
	88	'
	89
	90	test_expect_success 'empty dumb HTTP repository falls back to SHA1' '
	91	test_when_finished "rm -fr clone-empty" &&
	92	git clone $HTTPD_URL/dumb/empty.git clone-empty &&
	93	git -C clone-empty rev-parse --show-object-format >empty-format &&
	94	test "$(cat empty-format)" = sha1
	95	'
	96
	97	setup_askpass_helper
	98
	99	test_expect_success 'cloning password-protected repository can fail' '
	100	set_askpass wrong &&
	101	test_must_fail git clone "$HTTPD_URL/auth/dumb/repo.git" clone-auth-fail &&
	102	expect_askpass both wrong
	103	'
	104
	105	test_expect_success 'http auth can use user/pass in URL' '
	106	set_askpass wrong &&
	107	git clone "$HTTPD_URL_USER_PASS/auth/dumb/repo.git" clone-auth-none &&
	108	expect_askpass none
	109	'
	110
	111	test_expect_success 'http auth can use just user in URL' '
	112	set_askpass wrong pass@host &&
	113	git clone "$HTTPD_URL_USER/auth/dumb/repo.git" clone-auth-pass &&
	114	expect_askpass pass user%40host
	115	'
	116
	117	test_expect_success 'http auth can request both user and pass' '
	118	set_askpass user@host pass@host &&
	119	git clone "$HTTPD_URL/auth/dumb/repo.git" clone-auth-both &&
	120	expect_askpass both user%40host
	121	'
	122
	123	test_expect_success 'http auth respects credential helper config' '
	124	test_config_global credential.helper "!f() {
	125	cat >/dev/null
	126	echo username=user@host
	127	echo password=pass@host
	128	}; f" &&
	129	set_askpass wrong &&
	130	git clone "$HTTPD_URL/auth/dumb/repo.git" clone-auth-helper &&
	131	expect_askpass none
	132	'
	133
	134	test_expect_success 'http auth can get username from config' '
	135	test_config_global "credential.$HTTPD_URL.username" user@host &&
	136	set_askpass wrong pass@host &&
	137	git clone "$HTTPD_URL/auth/dumb/repo.git" clone-auth-user &&
	138	expect_askpass pass user%40host
	139	'
	140
	141	test_expect_success 'configured username does not override URL' '
	142	test_config_global "credential.$HTTPD_URL.username" wrong &&
	143	set_askpass wrong pass@host &&
	144	git clone "$HTTPD_URL_USER/auth/dumb/repo.git" clone-auth-user2 &&
	145	expect_askpass pass user%40host
	146	'
	147
	148	test_expect_success 'set up repo with http submodules' '
	149	git init super &&
	150	set_askpass user@host pass@host &&
	151	(
	152	cd super &&
	153	git submodule add "$HTTPD_URL/auth/dumb/repo.git" sub &&
	154	git commit -m "add submodule"
	155	)
	156	'
	157
	158	test_expect_success 'cmdline credential config passes to submodule via clone' '
	159	set_askpass wrong pass@host &&
	160	test_must_fail git clone --recursive super super-clone &&
	161	rm -rf super-clone &&
	162
	163	set_askpass wrong pass@host &&
	164	git -c "credential.$HTTPD_URL.username=user@host" \
	165	clone --recursive super super-clone &&
	166	expect_askpass pass user%40host
	167	'
	168
	169	test_expect_success 'cmdline credential config passes submodule via fetch' '
	170	set_askpass wrong pass@host &&
	171	test_must_fail git -C super-clone fetch --recurse-submodules &&
	172
	173	set_askpass wrong pass@host &&
	174	git -C super-clone \
	175	-c "credential.$HTTPD_URL.username=user@host" \
	176	fetch --recurse-submodules &&
	177	expect_askpass pass user%40host
	178	'
	179
	180	test_expect_success 'cmdline credential config passes submodule update' '
	181	# advance the submodule HEAD so that a fetch is required
	182	git commit --allow-empty -m foo &&
	183	git push "$HTTPD_DOCUMENT_ROOT_PATH/auth/dumb/repo.git" HEAD &&
	184	sha1=$(git rev-parse HEAD) &&
	185	git -C super-clone update-index --cacheinfo 160000,$sha1,sub &&
	186
	187	set_askpass wrong pass@host &&
	188	test_must_fail git -C super-clone submodule update &&
	189
	190	set_askpass wrong pass@host &&
	191	git -C super-clone \
	192	-c "credential.$HTTPD_URL.username=user@host" \
	193	submodule update &&
	194	expect_askpass pass user%40host
	195	'
	196
	197	test_expect_success 'fetch changes via http' '
	198	echo content >>file &&
	199	git commit -a -m two &&
	200	git push public &&
	201	(cd clone && git pull) &&
	202	test_cmp file clone/file
	203	'
	204
	205	test_expect_success 'fetch changes via manual http-fetch' '
	206	cp -R clone-tmpl clone2 &&
	207
	208	HEAD=$(git rev-parse --verify HEAD) &&
	209	(cd clone2 &&
	210	git http-fetch -a -w heads/main-new $HEAD $(git config remote.origin.url) &&
	211	git checkout main-new &&
	212	test $HEAD = $(git rev-parse --verify HEAD)) &&
	213	test_cmp file clone2/file
	214	'
	215
	216	test_expect_success 'manual http-fetch without -a works just as well' '
	217	cp -R clone-tmpl clone3 &&
	218
	219	HEAD=$(git rev-parse --verify HEAD) &&
	220	(cd clone3 &&
	221	git http-fetch -w heads/main-new $HEAD $(git config remote.origin.url) &&
	222	git checkout main-new &&
	223	test $HEAD = $(git rev-parse --verify HEAD)) &&
	224	test_cmp file clone3/file
	225	'
	226
	227	test_expect_success 'http remote detects correct HEAD' '
	228	git push public main:other &&
	229	(cd clone &&
	230	git remote set-head origin -d &&
	231	git remote set-head origin -a &&
	232	git symbolic-ref refs/remotes/origin/HEAD > output &&
	233	echo refs/remotes/origin/main > expect &&
	234	test_cmp expect output
	235	)
	236	'
	237
	238	test_expect_success 'fetch packed objects' '
	239	cp -R "$HTTPD_DOCUMENT_ROOT_PATH"/repo.git "$HTTPD_DOCUMENT_ROOT_PATH"/repo_pack.git &&
	240	(cd "$HTTPD_DOCUMENT_ROOT_PATH"/repo_pack.git &&
	241	git --bare repack -a -d
	242	) &&
	243	git clone $HTTPD_URL/dumb/repo_pack.git
	244	'
	245
	246	test_expect_success 'http-fetch --packfile' '
	247	# Arbitrary hash. Use rev-parse so that we get one of the correct
	248	# length.
	249	ARBITRARY=$(git -C "$HTTPD_DOCUMENT_ROOT_PATH"/repo_pack.git rev-parse HEAD) &&
	250
	251	git init packfileclient &&
	252	p=$(cd "$HTTPD_DOCUMENT_ROOT_PATH"/repo_pack.git && ls objects/pack/pack-*.pack) &&
	253	git -C packfileclient http-fetch --packfile=$ARBITRARY \
	254	--index-pack-arg=index-pack --index-pack-arg=--stdin \
	255	--index-pack-arg=--keep \
	256	"$HTTPD_URL"/dumb/repo_pack.git/$p >out &&
	257
	258	grep -E "^keep.[0-9a-f]{16,}$" out &&
	259	cut -c6- out >packhash &&
	260
	261	# Ensure that the expected files are generated
	262	test -e "packfileclient/.git/objects/pack/pack-$(cat packhash).pack" &&
	263	test -e "packfileclient/.git/objects/pack/pack-$(cat packhash).idx" &&
	264	test -e "packfileclient/.git/objects/pack/pack-$(cat packhash).keep" &&
	265
	266	# Ensure that it has the HEAD of repo_pack, at least
	267	HASH=$(git -C "$HTTPD_DOCUMENT_ROOT_PATH"/repo_pack.git rev-parse HEAD) &&
	268	git -C packfileclient cat-file -e "$HASH"
	269	'
	270
	271	test_expect_success 'fetch notices corrupt pack' '
	272	cp -R "$HTTPD_DOCUMENT_ROOT_PATH"/repo_pack.git "$HTTPD_DOCUMENT_ROOT_PATH"/repo_bad1.git &&
	273	(cd "$HTTPD_DOCUMENT_ROOT_PATH"/repo_bad1.git &&
	274	p=$(ls objects/pack/pack-*.pack) &&
	275	chmod u+w $p &&
	276	printf %0256d 0 \| dd of=$p bs=256 count=1 seek=1 conv=notrunc
	277	) &&
	278	mkdir repo_bad1.git &&
	279	(cd repo_bad1.git &&
	280	git --bare init &&
	281	test_must_fail git --bare fetch $HTTPD_URL/dumb/repo_bad1.git &&
	282	test 0 = $(ls objects/pack/pack-*.pack \| wc -l)
	283	)
	284	'
	285
	286	test_expect_success 'http-fetch --packfile with corrupt pack' '
	287	rm -rf packfileclient &&
	288	git init packfileclient &&
	289	p=$(cd "$HTTPD_DOCUMENT_ROOT_PATH"/repo_bad1.git && ls objects/pack/pack-*.pack) &&
	290	test_must_fail git -C packfileclient http-fetch --packfile \
	291	"$HTTPD_URL"/dumb/repo_bad1.git/$p
	292	'
	293
	294	test_expect_success 'fetch notices corrupt idx' '
	295	cp -R "$HTTPD_DOCUMENT_ROOT_PATH"/repo_pack.git "$HTTPD_DOCUMENT_ROOT_PATH"/repo_bad2.git &&
	296	(cd "$HTTPD_DOCUMENT_ROOT_PATH"/repo_bad2.git &&
	297	p=$(ls objects/pack/pack-*.idx) &&
	298	chmod u+w $p &&
	299	printf %0256d 0 \| dd of=$p bs=256 count=1 seek=1 conv=notrunc
	300	) &&
	301	mkdir repo_bad2.git &&
	302	(cd repo_bad2.git &&
	303	git --bare init &&
	304	test_must_fail git --bare fetch $HTTPD_URL/dumb/repo_bad2.git &&
	305	test 0 = $(ls objects/pack \| wc -l)
	306	)
	307	'
	308
	309	# usage: count_fetches <nr> <extension> <trace_file>
	310	count_fetches () {
	311	# ignore grep exit code; it may return non-zero if we are expecting no
	312	# matches
	313	grep "GET .objects/pack/pack-[a-z0-9].$2" "$3" >trace.count
	314	test_line_count = "$1" trace.count
	315	}
	316
	317	test_expect_success 'fetch can handle previously-fetched .idx files' '
	318	git checkout --orphan branch1 &&
	319	echo base >file &&
	320	git add file &&
	321	git commit -m base &&
	322	git --bare init "$HTTPD_DOCUMENT_ROOT_PATH"/repo_packed_branches.git &&
	323	git push "$HTTPD_DOCUMENT_ROOT_PATH"/repo_packed_branches.git branch1 &&
	324	git --git-dir="$HTTPD_DOCUMENT_ROOT_PATH"/repo_packed_branches.git repack -d &&
	325	git checkout -b branch2 branch1 &&
	326	echo b2 >>file &&
	327	git commit -a -m b2 &&
	328	git push "$HTTPD_DOCUMENT_ROOT_PATH"/repo_packed_branches.git branch2 &&
	329	git --git-dir="$HTTPD_DOCUMENT_ROOT_PATH"/repo_packed_branches.git repack -d &&
	330	git --bare init clone_packed_branches.git &&
	331	GIT_TRACE_CURL=$PWD/one.trace git --git-dir=clone_packed_branches.git \
	332	fetch "$HTTPD_URL"/dumb/repo_packed_branches.git branch1:branch1 &&
	333	count_fetches 2 idx one.trace &&
	334	count_fetches 1 pack one.trace &&
	335	GIT_TRACE_CURL=$PWD/two.trace git --git-dir=clone_packed_branches.git \
	336	fetch "$HTTPD_URL"/dumb/repo_packed_branches.git branch2:branch2 &&
	337	count_fetches 1 idx two.trace &&
	338	count_fetches 1 pack two.trace
	339	'
	340
	341	test_expect_success 'did not use upload-pack service' '
	342	! grep "/git-upload-pack" "$HTTPD_ROOT_PATH/access.log"
	343	'
	344
	345	test_expect_success 'git client shows text/plain errors' '
	346	test_must_fail git clone "$HTTPD_URL/error/text" 2>stderr &&
	347	grep "this is the error message" stderr
	348	'
	349
	350	test_expect_success 'git client does not show html errors' '
	351	test_must_fail git clone "$HTTPD_URL/error/html" 2>stderr &&
	352	! grep "this is the error message" stderr
	353	'
	354
	355	test_expect_success 'git client shows text/plain with a charset' '
	356	test_must_fail git clone "$HTTPD_URL/error/charset" 2>stderr &&
	357	grep "this is the error message" stderr
	358	'
	359
	360	test_expect_success ICONV 'http error messages are reencoded' '
	361	test_must_fail git clone "$HTTPD_URL/error/utf16" 2>stderr &&
	362	grep "this is the error message" stderr
	363	'
	364
	365	test_expect_success ICONV 'reencoding is robust to whitespace oddities' '
	366	test_must_fail git clone "$HTTPD_URL/error/odd-spacing" 2>stderr &&
	367	grep "this is the error message" stderr
	368	'
	369
	370	check_language () {
	371	case "$2" in
	372	'')
	373	>expect
	374	;;
	375	?*)
	376	echo "=> Send header: Accept-Language: $1" >expect
	377	;;
	378	esac &&
	379	GIT_TRACE_CURL=true \
	380	LANGUAGE=$2 \
	381	git ls-remote "$HTTPD_URL/dumb/repo.git" >output 2>&1 &&
	382	tr -d '\015' <output \|
	383	sort -u \|
	384	sed -ne '/^=> Send header: Accept-Language:/ p' >actual &&
	385	test_cmp expect actual
	386	}
	387
	388	test_expect_success 'git client sends Accept-Language based on LANGUAGE' '
	389	check_language "ko-KR, *;q=0.9" ko_KR.UTF-8'
	390
	391	test_expect_success 'git client sends Accept-Language correctly with unordinary LANGUAGE' '
	392	check_language "ko-KR, *;q=0.9" "ko_KR:" &&
	393	check_language "ko-KR, en-US;q=0.9, *;q=0.8" "ko_KR::en_US" &&
	394	check_language "ko-KR, *;q=0.9" ":::ko_KR" &&
	395	check_language "ko-KR, en-US;q=0.9, *;q=0.8" "ko_KR!!:en_US" &&
	396	check_language "ko-KR, ja-JP;q=0.9, *;q=0.8" "ko_KR en_US:ja_JP"'
	397
	398	test_expect_success 'git client sends Accept-Language with many preferred languages' '
	399	check_language "ko-KR, en-US;q=0.9, fr-CA;q=0.8, de;q=0.7, sr;q=0.6, \
	400	ja;q=0.5, zh;q=0.4, sv;q=0.3, pt;q=0.2, *;q=0.1" \
	401	ko_KR.EUC-KR:en_US.UTF-8:fr_CA:de.UTF-8@euro:sr@latin:ja:zh:sv:pt &&
	402	check_language "ko-KR, en-US;q=0.99, fr-CA;q=0.98, de;q=0.97, sr;q=0.96, \
	403	ja;q=0.95, zh;q=0.94, sv;q=0.93, pt;q=0.92, nb;q=0.91, *;q=0.90" \
	404	ko_KR.EUC-KR:en_US.UTF-8:fr_CA:de.UTF-8@euro:sr@latin:ja:zh:sv:pt:nb
	405	'
	406
	407	test_expect_success 'git client send an empty Accept-Language' '
	408	GIT_TRACE_CURL=true LANGUAGE= git ls-remote "$HTTPD_URL/dumb/repo.git" 2>stderr &&
	409	! grep "^=> Send header: Accept-Language:" stderr
	410	'
	411
	412	test_expect_success 'remote-http complains cleanly about malformed urls' '
	413	test_must_fail git remote-http http::/example.com/repo.git 2>stderr &&
	414	test_grep "url has no scheme" stderr
	415	'
	416
	417	# NEEDSWORK: Writing commands to git-remote-curl can race against the latter
	418	# erroring out, producing SIGPIPE. Remove "ok=sigpipe" once transport-helper has
	419	# learned to handle early remote helper failures more cleanly.
	420	test_expect_success 'remote-http complains cleanly about empty scheme' '
	421	test_must_fail ok=sigpipe git ls-remote \
	422	http::${HTTPD_URL#http}/dumb/repo.git 2>stderr &&
	423	test_grep "url has no scheme" stderr
	424	'
	425
	426	test_expect_success 'redirects can be forbidden/allowed' '
	427	test_must_fail git -c http.followRedirects=false \
	428	clone $HTTPD_URL/dumb-redir/repo.git dumb-redir &&
	429	git -c http.followRedirects=true \
	430	clone $HTTPD_URL/dumb-redir/repo.git dumb-redir 2>stderr
	431	'
	432
	433	test_expect_success 'redirects are reported to stderr' '
	434	# just look for a snippet of the redirected-to URL
	435	test_grep /dumb/ stderr
	436	'
	437
	438	test_expect_success 'non-initial redirects can be forbidden' '
	439	test_must_fail git -c http.followRedirects=initial \
	440	clone $HTTPD_URL/redir-objects/repo.git redir-objects &&
	441	git -c http.followRedirects=true \
	442	clone $HTTPD_URL/redir-objects/repo.git redir-objects
	443	'
	444
	445	test_expect_success 'http.followRedirects defaults to "initial"' '
	446	test_must_fail git clone $HTTPD_URL/redir-objects/repo.git default
	447	'
	448
	449	# The goal is for a clone of the "evil" repository, which has no objects
	450	# itself, to cause the client to fetch objects from the "victim" repository.
	451	test_expect_success 'set up evil alternates scheme' '
	452	victim=$HTTPD_DOCUMENT_ROOT_PATH/victim.git &&
	453	git init --bare "$victim" &&
	454	git -C "$victim" --work-tree=. commit --allow-empty -m secret &&
	455	git -C "$victim" repack -ad &&
	456	git -C "$victim" update-server-info &&
	457	sha1=$(git -C "$victim" rev-parse HEAD) &&
	458
	459	evil=$HTTPD_DOCUMENT_ROOT_PATH/evil.git &&
	460	git init --template= --bare "$evil" &&
	461	mkdir "$evil/info" &&
	462	# do this by hand to avoid object existence check
	463	printf "%s\\t%s\\n" $sha1 refs/heads/main >"$evil/info/refs"
	464	'
	465
	466	# Here we'll just redirect via HTTP. In a real-world attack these would be on
	467	# different servers, but we should reject it either way.
	468	test_expect_success 'http-alternates is a non-initial redirect' '
	469	echo "$HTTPD_URL/dumb/victim.git/objects" \
	470	>"$evil/objects/info/http-alternates" &&
	471	test_must_fail git -c http.followRedirects=initial \
	472	clone $HTTPD_URL/dumb/evil.git evil-initial &&
	473	git -c http.followRedirects=true \
	474	clone $HTTPD_URL/dumb/evil.git evil-initial
	475	'
	476
	477	# Curl supports a lot of protocols that we'd prefer not to allow
	478	# http-alternates to use, but it's hard to test whether curl has
	479	# accessed, say, the SMTP protocol, because we are not running an SMTP server.
	480	# But we can check that it does not allow access to file://, which would
	481	# otherwise allow this clone to complete.
	482	test_expect_success 'http-alternates cannot point at funny protocols' '
	483	echo "file://$victim/objects" >"$evil/objects/info/http-alternates" &&
	484	test_must_fail git -c http.followRedirects=true \
	485	clone "$HTTPD_URL/dumb/evil.git" evil-file
	486	'
	487
	488	test_expect_success 'http-alternates triggers not-from-user protocol check' '
	489	echo "$HTTPD_URL/dumb/victim.git/objects" \
	490	>"$evil/objects/info/http-alternates" &&
	491	test_config_global http.followRedirects true &&
	492	test_must_fail git -c protocol.http.allow=user \
	493	clone $HTTPD_URL/dumb/evil.git evil-user &&
	494	git -c protocol.http.allow=always \
	495	clone $HTTPD_URL/dumb/evil.git evil-user
	496	'
	497
	498	test_expect_success 'can redirect through non-"info/refs?service=git-upload-pack" URL' '
	499	git clone "$HTTPD_URL/redir-to/dumb/repo.git"
	500	'
	501
	502	test_expect_success 'print HTTP error when any intermediate redirect throws error' '
	503	test_must_fail git clone "$HTTPD_URL/redir-to/502" 2> stderr &&
	504	test_grep "unable to access.*/redir-to/502" stderr
	505	'
	506
	507	test_expect_success 'fetching via http alternates works' '
	508	parent=$HTTPD_DOCUMENT_ROOT_PATH/alt-parent.git &&
	509	git init --bare "$parent" &&
	510	git -C "$parent" --work-tree=. commit --allow-empty -m foo &&
	511	git -C "$parent" update-server-info &&
	512	commit=$(git -C "$parent" rev-parse HEAD) &&
	513
	514	child=$HTTPD_DOCUMENT_ROOT_PATH/alt-child.git &&
	515	git init --bare "$child" &&
	516	echo "../../alt-parent.git/objects" >"$child/objects/info/alternates" &&
	517	git -C "$child" update-ref HEAD $commit &&
	518	git -C "$child" update-server-info &&
	519
	520	git -c http.followredirects=true clone "$HTTPD_URL/dumb/alt-child.git"
	521	'
	522
	523	test_expect_success 'dumb http can fetch index v1' '
	524	server=$HTTPD_DOCUMENT_ROOT_PATH/idx-v1.git &&
	525	git init --bare "$server" &&
	526	git -C "$server" --work-tree=. commit --allow-empty -m foo &&
	527	git -C "$server" -c pack.indexVersion=1 gc &&
	528
	529	git clone "$HTTPD_URL/dumb/idx-v1.git" &&
	530	git -C idx-v1 fsck
	531	'
	532
	533	test_done