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