diff options
Diffstat (limited to 't/t5550-http-fetch-dumb.sh')
| -rwxr-xr-x | t/t5550-http-fetch-dumb.sh | 488 |
1 files changed, 488 insertions, 0 deletions
diff --git a/t/t5550-http-fetch-dumb.sh b/t/t5550-http-fetch-dumb.sh new file mode 100755 index 0000000..e444b30 --- /dev/null +++ b/t/t5550-http-fetch-dumb.sh @@ -0,0 +1,488 @@ +#!/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 +' + +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 '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 has default hash algorithm' ' + 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)" = "$(test_oid algo)" +' + +setup_askpass_helper + +test_expect_success 'cloning password-protected repository can fail' ' + set_askpass wrong && + test_must_fail git clone "$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@host +' + +test_expect_success 'http auth can request both user and pass' ' + set_askpass user@host pass@host && + git clone "$HTTPD_URL/auth/dumb/repo.git" clone-auth-both && + expect_askpass both user@host +' + +test_expect_success 'http auth respects credential helper config' ' + test_config_global credential.helper "!f() { + cat >/dev/null + echo username=user@host + echo password=pass@host + }; f" && + set_askpass wrong && + git clone "$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@host +' + +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@host +' + +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@host +' + +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.$HTTPD_URL.username=user@host" \ + fetch --recurse-submodules && + expect_askpass pass user@host +' + +test_expect_success 'cmdline credential config passes submodule update' ' + # advance the submodule HEAD so that a fetch is required + git commit --allow-empty -m foo && + git push "$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.$HTTPD_URL.username=user@host" \ + submodule update && + expect_askpass pass user@host +' + +test_expect_success 'fetch changes via http' ' + echo content >>file && + git commit -a -m two && + git push public && + (cd clone && git pull) && + test_cmp file clone/file +' + +test_expect_success 'fetch changes via manual http-fetch' ' + cp -R clone-tmpl clone2 && + + HEAD=$(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 = $(ls objects/pack | wc -l) + ) +' + +test_expect_success 'fetch can handle previously-fetched .idx files' ' + git checkout --orphan branch1 && + echo base >file && + git add file && + git commit -m base && + git --bare init "$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 --git-dir=clone_packed_branches.git fetch "$HTTPD_URL"/dumb/repo_packed_branches.git branch1:branch1 && + git --git-dir=clone_packed_branches.git fetch "$HTTPD_URL"/dumb/repo_packed_branches.git branch2:branch2 +' + +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 'http error messages are reencoded' ' + test_must_fail git clone "$HTTPD_URL/error/utf16" 2>stderr && + grep "this is the error message" stderr +' + +test_expect_success 'reencoding is robust to whitespace oddities' ' + test_must_fail git clone "$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_done |