t/t5550-http-fetch-dumb.sh

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