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 . "$TEST_DIRECTORY"/lib-httpd.sh
   9 start_httpd
  10
  11 test_expect_success 'setup repository' '
  12         git config push.default matching &&
  13         echo content1 >file &&
  14         git add file &&
  15         git commit -m one &&
  16         echo content2 >file &&
  17         git add file &&
  18         git commit -m two
  19 '
  20
  21 test_expect_success 'create http-accessible bare repository with loose objects' '
  22         cp -R .git "$HTTPD_DOCUMENT_ROOT_PATH/repo.git" &&
  23         (cd "$HTTPD_DOCUMENT_ROOT_PATH/repo.git" &&
  24          git config core.bare true &&
  25          mkdir -p hooks &&
  26          write_script "hooks/post-update" <<-\EOF &&
  27          exec git update-server-info
  28         EOF
  29          hooks/post-update
  30         ) &&
  31         git remote add public "$HTTPD_DOCUMENT_ROOT_PATH/repo.git" &&
  32         git push public main:main
  33 '
  34
  35 test_expect_success 'clone http repository' '
  36         git clone $HTTPD_URL/dumb/repo.git clone-tmpl &&
  37         cp -R clone-tmpl clone &&
  38         test_cmp file clone/file
  39 '
  40
  41 test_expect_success 'list refs from outside any repository' '
  42         cat >expect <<-EOF &&
  43         $(git rev-parse main)   HEAD
  44         $(git rev-parse main)   refs/heads/main
  45         EOF
  46         nongit git ls-remote "$HTTPD_URL/dumb/repo.git" >actual &&
  47         test_cmp expect actual
  48 '
  49
  50 test_expect_success 'create password-protected repository' '
  51         mkdir -p "$HTTPD_DOCUMENT_ROOT_PATH/auth/dumb/" &&
  52         cp -Rf "$HTTPD_DOCUMENT_ROOT_PATH/repo.git" \
  53                "$HTTPD_DOCUMENT_ROOT_PATH/auth/dumb/repo.git"
  54 '
  55
  56 test_expect_success 'create empty remote repository' '
  57         git init --bare "$HTTPD_DOCUMENT_ROOT_PATH/empty.git" &&
  58         (cd "$HTTPD_DOCUMENT_ROOT_PATH/empty.git" &&
  59          mkdir -p hooks &&
  60          write_script "hooks/post-update" <<-\EOF &&
  61          exec git update-server-info
  62         EOF
  63          hooks/post-update
  64         )
  65 '
  66
  67 test_expect_success 'empty dumb HTTP repository has default hash algorithm' '
  68         test_when_finished "rm -fr clone-empty" &&
  69         git clone $HTTPD_URL/dumb/empty.git clone-empty &&
  70         git -C clone-empty rev-parse --show-object-format >empty-format &&
  71         test "$(cat empty-format)" = "$(test_oid algo)"
  72 '
  73
  74 setup_askpass_helper
  75
  76 test_expect_success 'cloning password-protected repository can fail' '
  77         set_askpass wrong &&
  78         test_must_fail git clone "$HTTPD_URL/auth/dumb/repo.git" clone-auth-fail &&
  79         expect_askpass both wrong
  80 '
  81
  82 test_expect_success 'http auth can use user/pass in URL' '
  83         set_askpass wrong &&
  84         git clone "$HTTPD_URL_USER_PASS/auth/dumb/repo.git" clone-auth-none &&
  85         expect_askpass none
  86 '
  87
  88 test_expect_success 'http auth can use just user in URL' '
  89         set_askpass wrong pass@host &&
  90         git clone "$HTTPD_URL_USER/auth/dumb/repo.git" clone-auth-pass &&
  91         expect_askpass pass user@host
  92 '
  93
  94 test_expect_success 'http auth can request both user and pass' '
  95         set_askpass user@host pass@host &&
  96         git clone "$HTTPD_URL/auth/dumb/repo.git" clone-auth-both &&
  97         expect_askpass both user@host
  98 '
  99
 100 test_expect_success 'http auth respects credential helper config' '
 101         test_config_global credential.helper "!f() {
 102                 cat >/dev/null
 103                 echo username=user@host
 104                 echo password=pass@host
 105         }; f" &&
 106         set_askpass wrong &&
 107         git clone "$HTTPD_URL/auth/dumb/repo.git" clone-auth-helper &&
 108         expect_askpass none
 109 '
 110
 111 test_expect_success 'http auth can get username from config' '
 112         test_config_global "credential.$HTTPD_URL.username" user@host &&
 113         set_askpass wrong pass@host &&
 114         git clone "$HTTPD_URL/auth/dumb/repo.git" clone-auth-user &&
 115         expect_askpass pass user@host
 116 '
 117
 118 test_expect_success 'configured username does not override URL' '
 119         test_config_global "credential.$HTTPD_URL.username" wrong &&
 120         set_askpass wrong pass@host &&
 121         git clone "$HTTPD_URL_USER/auth/dumb/repo.git" clone-auth-user2 &&
 122         expect_askpass pass user@host
 123 '
 124
 125 test_expect_success 'set up repo with http submodules' '
 126         git init super &&
 127         set_askpass user@host pass@host &&
 128         (
 129                 cd super &&
 130                 git submodule add "$HTTPD_URL/auth/dumb/repo.git" sub &&
 131                 git commit -m "add submodule"
 132         )
 133 '
 134
 135 test_expect_success 'cmdline credential config passes to submodule via clone' '
 136         set_askpass wrong pass@host &&
 137         test_must_fail git clone --recursive super super-clone &&
 138         rm -rf super-clone &&
 139
 140         set_askpass wrong pass@host &&
 141         git -c "credential.$HTTPD_URL.username=user@host" \
 142                 clone --recursive super super-clone &&
 143         expect_askpass pass user@host
 144 '
 145
 146 test_expect_success 'cmdline credential config passes submodule via fetch' '
 147         set_askpass wrong pass@host &&
 148         test_must_fail git -C super-clone fetch --recurse-submodules &&
 149
 150         set_askpass wrong pass@host &&
 151         git -C super-clone \
 152             -c "credential.$HTTPD_URL.username=user@host" \
 153             fetch --recurse-submodules &&
 154         expect_askpass pass user@host
 155 '
 156
 157 test_expect_success 'cmdline credential config passes submodule update' '
 158         # advance the submodule HEAD so that a fetch is required
 159         git commit --allow-empty -m foo &&
 160         git push "$HTTPD_DOCUMENT_ROOT_PATH/auth/dumb/repo.git" HEAD &&
 161         sha1=$(git rev-parse HEAD) &&
 162         git -C super-clone update-index --cacheinfo 160000,$sha1,sub &&
 163
 164         set_askpass wrong pass@host &&
 165         test_must_fail git -C super-clone submodule update &&
 166
 167         set_askpass wrong pass@host &&
 168         git -C super-clone \
 169             -c "credential.$HTTPD_URL.username=user@host" \
 170             submodule update &&
 171         expect_askpass pass user@host
 172 '
 173
 174 test_expect_success 'fetch changes via http' '
 175         echo content >>file &&
 176         git commit -a -m two &&
 177         git push public &&
 178         (cd clone && git pull) &&
 179         test_cmp file clone/file
 180 '
 181
 182 test_expect_success 'fetch changes via manual http-fetch' '
 183         cp -R clone-tmpl clone2 &&
 184
 185         HEAD=$(git rev-parse --verify HEAD) &&
 186         (cd clone2 &&
 187          git http-fetch -a -w heads/main-new $HEAD $(git config remote.origin.url) &&
 188          git checkout main-new &&
 189          test $HEAD = $(git rev-parse --verify HEAD)) &&
 190         test_cmp file clone2/file
 191 '
 192
 193 test_expect_success 'manual http-fetch without -a works just as well' '
 194         cp -R clone-tmpl clone3 &&
 195
 196         HEAD=$(git rev-parse --verify HEAD) &&
 197         (cd clone3 &&
 198          git http-fetch -w heads/main-new $HEAD $(git config remote.origin.url) &&
 199          git checkout main-new &&
 200          test $HEAD = $(git rev-parse --verify HEAD)) &&
 201         test_cmp file clone3/file
 202 '
 203
 204 test_expect_success 'http remote detects correct HEAD' '
 205         git push public main:other &&
 206         (cd clone &&
 207          git remote set-head origin -d &&
 208          git remote set-head origin -a &&
 209          git symbolic-ref refs/remotes/origin/HEAD > output &&
 210          echo refs/remotes/origin/main > expect &&
 211          test_cmp expect output
 212         )
 213 '
 214
 215 test_expect_success 'fetch packed objects' '
 216         cp -R "$HTTPD_DOCUMENT_ROOT_PATH"/repo.git "$HTTPD_DOCUMENT_ROOT_PATH"/repo_pack.git &&
 217         (cd "$HTTPD_DOCUMENT_ROOT_PATH"/repo_pack.git &&
 218          git --bare repack -a -d
 219         ) &&
 220         git clone $HTTPD_URL/dumb/repo_pack.git
 221 '
 222
 223 test_expect_success 'http-fetch --packfile' '
 224         # Arbitrary hash. Use rev-parse so that we get one of the correct
 225         # length.
 226         ARBITRARY=$(git -C "$HTTPD_DOCUMENT_ROOT_PATH"/repo_pack.git rev-parse HEAD) &&
 227
 228         git init packfileclient &&
 229         p=$(cd "$HTTPD_DOCUMENT_ROOT_PATH"/repo_pack.git && ls objects/pack/pack-*.pack) &&
 230         git -C packfileclient http-fetch --packfile=$ARBITRARY "$HTTPD_URL"/dumb/repo_pack.git/$p >out &&
 231
 232         grep "^keep.[0-9a-f]\{16,\}$" out &&
 233         cut -c6- out >packhash &&
 234
 235         # Ensure that the expected files are generated
 236         test -e "packfileclient/.git/objects/pack/pack-$(cat packhash).pack" &&
 237         test -e "packfileclient/.git/objects/pack/pack-$(cat packhash).idx" &&
 238         test -e "packfileclient/.git/objects/pack/pack-$(cat packhash).keep" &&
 239
 240         # Ensure that it has the HEAD of repo_pack, at least
 241         HASH=$(git -C "$HTTPD_DOCUMENT_ROOT_PATH"/repo_pack.git rev-parse HEAD) &&
 242         git -C packfileclient cat-file -e "$HASH"
 243 '
 244
 245 test_expect_success 'fetch notices corrupt pack' '
 246         cp -R "$HTTPD_DOCUMENT_ROOT_PATH"/repo_pack.git "$HTTPD_DOCUMENT_ROOT_PATH"/repo_bad1.git &&
 247         (cd "$HTTPD_DOCUMENT_ROOT_PATH"/repo_bad1.git &&
 248          p=$(ls objects/pack/pack-*.pack) &&
 249          chmod u+w $p &&
 250          printf %0256d 0 | dd of=$p bs=256 count=1 seek=1 conv=notrunc
 251         ) &&
 252         mkdir repo_bad1.git &&
 253         (cd repo_bad1.git &&
 254          git --bare init &&
 255          test_must_fail git --bare fetch $HTTPD_URL/dumb/repo_bad1.git &&
 256          test 0 = $(ls objects/pack/pack-*.pack | wc -l)
 257         )
 258 '
 259
 260 test_expect_success 'http-fetch --packfile with corrupt pack' '
 261         rm -rf packfileclient &&
 262         git init packfileclient &&
 263         p=$(cd "$HTTPD_DOCUMENT_ROOT_PATH"/repo_bad1.git && ls objects/pack/pack-*.pack) &&
 264         test_must_fail git -C packfileclient http-fetch --packfile \
 265                 "$HTTPD_URL"/dumb/repo_bad1.git/$p
 266 '
 267
 268 test_expect_success 'fetch notices corrupt idx' '
 269         cp -R "$HTTPD_DOCUMENT_ROOT_PATH"/repo_pack.git "$HTTPD_DOCUMENT_ROOT_PATH"/repo_bad2.git &&
 270         (cd "$HTTPD_DOCUMENT_ROOT_PATH"/repo_bad2.git &&
 271          p=$(ls objects/pack/pack-*.idx) &&
 272          chmod u+w $p &&
 273          printf %0256d 0 | dd of=$p bs=256 count=1 seek=1 conv=notrunc
 274         ) &&
 275         mkdir repo_bad2.git &&
 276         (cd repo_bad2.git &&
 277          git --bare init &&
 278          test_must_fail git --bare fetch $HTTPD_URL/dumb/repo_bad2.git &&
 279          test 0 = $(ls objects/pack | wc -l)
 280         )
 281 '
 282
 283 test_expect_success 'fetch can handle previously-fetched .idx files' '
 284         git checkout --orphan branch1 &&
 285         echo base >file &&
 286         git add file &&
 287         git commit -m base &&
 288         git --bare init "$HTTPD_DOCUMENT_ROOT_PATH"/repo_packed_branches.git &&
 289         git push "$HTTPD_DOCUMENT_ROOT_PATH"/repo_packed_branches.git branch1 &&
 290         git --git-dir="$HTTPD_DOCUMENT_ROOT_PATH"/repo_packed_branches.git repack -d &&
 291         git checkout -b branch2 branch1 &&
 292         echo b2 >>file &&
 293         git commit -a -m b2 &&
 294         git push "$HTTPD_DOCUMENT_ROOT_PATH"/repo_packed_branches.git branch2 &&
 295         git --git-dir="$HTTPD_DOCUMENT_ROOT_PATH"/repo_packed_branches.git repack -d &&
 296         git --bare init clone_packed_branches.git &&
 297         git --git-dir=clone_packed_branches.git fetch "$HTTPD_URL"/dumb/repo_packed_branches.git branch1:branch1 &&
 298         git --git-dir=clone_packed_branches.git fetch "$HTTPD_URL"/dumb/repo_packed_branches.git branch2:branch2
 299 '
 300
 301 test_expect_success 'did not use upload-pack service' '
 302         ! grep "/git-upload-pack" "$HTTPD_ROOT_PATH/access.log"
 303 '
 304
 305 test_expect_success 'git client shows text/plain errors' '
 306         test_must_fail git clone "$HTTPD_URL/error/text" 2>stderr &&
 307         grep "this is the error message" stderr
 308 '
 309
 310 test_expect_success 'git client does not show html errors' '
 311         test_must_fail git clone "$HTTPD_URL/error/html" 2>stderr &&
 312         ! grep "this is the error message" stderr
 313 '
 314
 315 test_expect_success 'git client shows text/plain with a charset' '
 316         test_must_fail git clone "$HTTPD_URL/error/charset" 2>stderr &&
 317         grep "this is the error message" stderr
 318 '
 319
 320 test_expect_success 'http error messages are reencoded' '
 321         test_must_fail git clone "$HTTPD_URL/error/utf16" 2>stderr &&
 322         grep "this is the error message" stderr
 323 '
 324
 325 test_expect_success 'reencoding is robust to whitespace oddities' '
 326         test_must_fail git clone "$HTTPD_URL/error/odd-spacing" 2>stderr &&
 327         grep "this is the error message" stderr
 328 '
 329
 330 check_language () {
 331         case "$2" in
 332         '')
 333                 >expect
 334                 ;;
 335         ?*)
 336                 echo "=> Send header: Accept-Language: $1" >expect
 337                 ;;
 338         esac &&
 339         GIT_TRACE_CURL=true \
 340         LANGUAGE=$2 \
 341         git ls-remote "$HTTPD_URL/dumb/repo.git" >output 2>&1 &&
 342         tr -d '\015' <output |
 343         sort -u |
 344         sed -ne '/^=> Send header: Accept-Language:/ p' >actual &&
 345         test_cmp expect actual
 346 }
 347
 348 test_expect_success 'git client sends Accept-Language based on LANGUAGE' '
 349         check_language "ko-KR, *;q=0.9" ko_KR.UTF-8'
 350
 351 test_expect_success 'git client sends Accept-Language correctly with unordinary LANGUAGE' '
 352         check_language "ko-KR, *;q=0.9" "ko_KR:" &&
 353         check_language "ko-KR, en-US;q=0.9, *;q=0.8" "ko_KR::en_US" &&
 354         check_language "ko-KR, *;q=0.9" ":::ko_KR" &&
 355         check_language "ko-KR, en-US;q=0.9, *;q=0.8" "ko_KR!!:en_US" &&
 356         check_language "ko-KR, ja-JP;q=0.9, *;q=0.8" "ko_KR en_US:ja_JP"'
 357
 358 test_expect_success 'git client sends Accept-Language with many preferred languages' '
 359         check_language "ko-KR, en-US;q=0.9, fr-CA;q=0.8, de;q=0.7, sr;q=0.6, \
 360 ja;q=0.5, zh;q=0.4, sv;q=0.3, pt;q=0.2, *;q=0.1" \
 361                 ko_KR.EUC-KR:en_US.UTF-8:fr_CA:de.UTF-8@euro:sr@latin:ja:zh:sv:pt &&
 362         check_language "ko-KR, en-US;q=0.99, fr-CA;q=0.98, de;q=0.97, sr;q=0.96, \
 363 ja;q=0.95, zh;q=0.94, sv;q=0.93, pt;q=0.92, nb;q=0.91, *;q=0.90" \
 364                 ko_KR.EUC-KR:en_US.UTF-8:fr_CA:de.UTF-8@euro:sr@latin:ja:zh:sv:pt:nb
 365 '
 366
 367 test_expect_success 'git client does not send an empty Accept-Language' '
 368         GIT_TRACE_CURL=true LANGUAGE= git ls-remote "$HTTPD_URL/dumb/repo.git" 2>stderr &&
 369         ! grep "^=> Send header: Accept-Language:" stderr
 370 '
 371
 372 test_expect_success 'remote-http complains cleanly about malformed urls' '
 373         test_must_fail git remote-http http::/example.com/repo.git 2>stderr &&
 374         test_i18ngrep "url has no scheme" stderr
 375 '
 376
 377 # NEEDSWORK: Writing commands to git-remote-curl can race against the latter
 378 # erroring out, producing SIGPIPE. Remove "ok=sigpipe" once transport-helper has
 379 # learned to handle early remote helper failures more cleanly.
 380 test_expect_success 'remote-http complains cleanly about empty scheme' '
 381         test_must_fail ok=sigpipe git ls-remote \
 382                 http::${HTTPD_URL#http}/dumb/repo.git 2>stderr &&
 383         test_i18ngrep "url has no scheme" stderr
 384 '
 385
 386 test_expect_success 'redirects can be forbidden/allowed' '
 387         test_must_fail git -c http.followRedirects=false \
 388                 clone $HTTPD_URL/dumb-redir/repo.git dumb-redir &&
 389         git -c http.followRedirects=true \
 390                 clone $HTTPD_URL/dumb-redir/repo.git dumb-redir 2>stderr
 391 '
 392
 393 test_expect_success 'redirects are reported to stderr' '
 394         # just look for a snippet of the redirected-to URL
 395         test_i18ngrep /dumb/ stderr
 396 '
 397
 398 test_expect_success 'non-initial redirects can be forbidden' '
 399         test_must_fail git -c http.followRedirects=initial \
 400                 clone $HTTPD_URL/redir-objects/repo.git redir-objects &&
 401         git -c http.followRedirects=true \
 402                 clone $HTTPD_URL/redir-objects/repo.git redir-objects
 403 '
 404
 405 test_expect_success 'http.followRedirects defaults to "initial"' '
 406         test_must_fail git clone $HTTPD_URL/redir-objects/repo.git default
 407 '
 408
 409 # The goal is for a clone of the "evil" repository, which has no objects
 410 # itself, to cause the client to fetch objects from the "victim" repository.
 411 test_expect_success 'set up evil alternates scheme' '
 412         victim=$HTTPD_DOCUMENT_ROOT_PATH/victim.git &&
 413         git init --bare "$victim" &&
 414         git -C "$victim" --work-tree=. commit --allow-empty -m secret &&
 415         git -C "$victim" repack -ad &&
 416         git -C "$victim" update-server-info &&
 417         sha1=$(git -C "$victim" rev-parse HEAD) &&
 418
 419         evil=$HTTPD_DOCUMENT_ROOT_PATH/evil.git &&
 420         git init --bare "$evil" &&
 421         # do this by hand to avoid object existence check
 422         printf "%s\\t%s\\n" $sha1 refs/heads/main >"$evil/info/refs"
 423 '
 424
 425 # Here we'll just redirect via HTTP. In a real-world attack these would be on
 426 # different servers, but we should reject it either way.
 427 test_expect_success 'http-alternates is a non-initial redirect' '
 428         echo "$HTTPD_URL/dumb/victim.git/objects" \
 429                 >"$evil/objects/info/http-alternates" &&
 430         test_must_fail git -c http.followRedirects=initial \
 431                 clone $HTTPD_URL/dumb/evil.git evil-initial &&
 432         git -c http.followRedirects=true \
 433                 clone $HTTPD_URL/dumb/evil.git evil-initial
 434 '
 435
 436 # Curl supports a lot of protocols that we'd prefer not to allow
 437 # http-alternates to use, but it's hard to test whether curl has
 438 # accessed, say, the SMTP protocol, because we are not running an SMTP server.
 439 # But we can check that it does not allow access to file://, which would
 440 # otherwise allow this clone to complete.
 441 test_expect_success 'http-alternates cannot point at funny protocols' '
 442         echo "file://$victim/objects" >"$evil/objects/info/http-alternates" &&
 443         test_must_fail git -c http.followRedirects=true \
 444                 clone "$HTTPD_URL/dumb/evil.git" evil-file
 445 '
 446
 447 test_expect_success 'http-alternates triggers not-from-user protocol check' '
 448         echo "$HTTPD_URL/dumb/victim.git/objects" \
 449                 >"$evil/objects/info/http-alternates" &&
 450         test_config_global http.followRedirects true &&
 451         test_must_fail git -c protocol.http.allow=user \
 452                 clone $HTTPD_URL/dumb/evil.git evil-user &&
 453         git -c protocol.http.allow=always \
 454                 clone $HTTPD_URL/dumb/evil.git evil-user
 455 '
 456
 457 test_expect_success 'can redirect through non-"info/refs?service=git-upload-pack" URL' '
 458         git clone "$HTTPD_URL/redir-to/dumb/repo.git"
 459 '
 460
 461 test_expect_success 'print HTTP error when any intermediate redirect throws error' '
 462         test_must_fail git clone "$HTTPD_URL/redir-to/502" 2> stderr &&
 463         test_i18ngrep "unable to access.*/redir-to/502" stderr
 464 '
 465
 466 test_expect_success 'fetching via http alternates works' '
 467         parent=$HTTPD_DOCUMENT_ROOT_PATH/alt-parent.git &&
 468         git init --bare "$parent" &&
 469         git -C "$parent" --work-tree=. commit --allow-empty -m foo &&
 470         git -C "$parent" update-server-info &&
 471         commit=$(git -C "$parent" rev-parse HEAD) &&
 472
 473         child=$HTTPD_DOCUMENT_ROOT_PATH/alt-child.git &&
 474         git init --bare "$child" &&
 475         echo "../../alt-parent.git/objects" >"$child/objects/info/alternates" &&
 476         git -C "$child" update-ref HEAD $commit &&
 477         git -C "$child" update-server-info &&
 478
 479         git -c http.followredirects=true clone "$HTTPD_URL/dumb/alt-child.git"
 480 '
 481
 482 test_done