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git/t/t5551-http-fetch-smart.sh
Jonathan Tan 827e7d4da4 http: redact all cookies, teach GIT_TRACE_REDACT=0 
In trace output (when GIT_TRACE_CURL is true), redact the values of all
HTTP cookies by default. Now that auth headers (since the implementation
of GIT_TRACE_CURL in 74c682d3c6 ("http.c: implement the GIT_TRACE_CURL
environment variable", 2016-05-24)) and cookie values (since this
commit) are redacted by default in these traces, also allow the user to
inhibit these redactions through an environment variable.

Since values of all cookies are now redacted by default,
GIT_REDACT_COOKIES (which previously allowed users to select individual
cookies to redact) now has no effect.

Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-06-05 15:05:04 -07:00

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#!/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
test_expect_success 'clone http repository' '
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
GIT_TRACE_CURL=true GIT_TEST_PROTOCOL_VERSION=0 \
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
" >actual &&
# NEEDSWORK: If the overspecification of the expected result is reduced, we
# might be able to run this test in all protocol versions.
if test "$GIT_TEST_PROTOCOL_VERSION" = 0
then
sed -e "s/^> Accept-Encoding: .*/> Accept-Encoding: ENCODINGS/" \
actual >actual.smudged &&
test_cmp exp actual.smudged &&
grep "Accept-Encoding:.*gzip" actual >actual.gzip &&
test_line_count = 2 actual.gzip
fi
'
test_expect_success 'fetch changes via http' '
echo content >>file &&
git commit -a -m two &&
git push public &&
(cd clone && git pull) &&
test_cmp file clone/file
'
test_expect_success 'used upload-pack service' '
cat >exp <<-\EOF &&
GET /smart/repo.git/info/refs?service=git-upload-pack HTTP/1.1 200
POST /smart/repo.git/git-upload-pack HTTP/1.1 200
GET /smart/repo.git/info/refs?service=git-upload-pack HTTP/1.1 200
POST /smart/repo.git/git-upload-pack HTTP/1.1 200
EOF
# NEEDSWORK: If the overspecification of the expected result is reduced, we
# might be able to run this test in all protocol versions.
if test "$GIT_TEST_PROTOCOL_VERSION" = 0
then
check_access_log exp
fi
'
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 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 &&
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 "$HTTPD_URL/auth/smart/repo.git" redact-auth &&
expect_askpass both user@host &&
# Ensure that there is no "Basic" followed by a base64 string, but that
# the auth details are redacted
! grep "Authorization: Basic [0-9a-zA-Z+/]" trace &&
grep "Authorization: Basic <redacted>" trace
'
test_expect_success 'GIT_CURL_VERBOSE redacts auth details' '
rm -rf redact-auth trace &&
set_askpass user@host pass@host &&
GIT_CURL_VERBOSE=1 git clone --bare "$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 "Authorization: Basic [0-9a-zA-Z+/]" trace &&
grep "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 "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 $HTTPD_URL/broken_smart/repo.git 2>actual &&
test_i18ngrep "not valid:" actual
'
test_expect_success 'create namespaced refs' '
test_commit namespaced &&
git push public HEAD:refs/namespaces/ns/refs/heads/master &&
git --git-dir="$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
'
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/info/ FALSE 0 name value
EOF
git config http.cookiefile cookies.txt &&
git config http.savecookies true &&
git ls-remote $HTTPD_URL/smart_cookies/repo.git master &&
# NEEDSWORK: If the overspecification of the expected result is reduced, we
# might be able to run this test in all protocol versions.
if test "$GIT_TEST_PROTOCOL_VERSION" = 0
then
tail -3 cookies.txt | sort >cookies_tail.txt &&
test_cmp expect_cookies.txt cookies_tail.txt
fi
'
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 &&
grep "^=> Send header: Transfer-Encoding: chunked" err
'
test_expect_success 'test allowreachablesha1inwant' '
test_when_finished "rm -rf test_reachable.git" &&
server="$HTTPD_DOCUMENT_ROOT_PATH/repo.git" &&
master_sha=$(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" &&
# 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" &&
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" &&
# 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 "$SERVER" rev-parse master >expect &&
git -C client rev-parse origin/master >actual &&
test_cmp expect actual
'
test_expect_success 'fetch by SHA-1 without tag following' '
SERVER="$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 \
$HTTPD_URL/smart/repo.git clone 2>err &&
grep "Cookie:.*Foo=<redacted>" err &&
grep "Cookie:.*Bar=<redacted>" err &&
! grep "Cookie:.*Foo=1" err &&
! grep "Cookie:.*Bar=2" err
'
test_expect_success 'empty values of cookies are also redacted' '
rm -rf clone &&
echo "Set-Cookie: Foo=" >cookies &&
GIT_TRACE_CURL=true \
git -c "http.cookieFile=$(pwd)/cookies" clone \
$HTTPD_URL/smart/repo.git clone 2>err &&
grep "Cookie:.*Foo=<redacted>" err
'
test_expect_success 'GIT_TRACE_REDACT=0 disables cookie redaction' '
rm -rf clone &&
echo "Set-Cookie: Foo=1" >cookies &&
echo "Set-Cookie: Bar=2" >>cookies &&
GIT_TRACE_REDACT=0 GIT_TRACE_CURL=true \
git -c "http.cookieFile=$(pwd)/cookies" clone \
$HTTPD_URL/smart/repo.git clone 2>err &&
grep "Cookie:.*Foo=1" err &&
grep "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_i18ngrep "server-side error" actual
'
test_done
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