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 . "$TEST_DIRECTORY"/lib-httpd.sh
  16 start_httpd
  17
  18 test_expect_success 'setup repository' '
  19         git config push.default matching &&
  20         echo content1 >file &&
  21         git add file &&
  22         git commit -m one &&
  23         echo content2 >file &&
  24         git add file &&
  25         git commit -m two
  26 '
  27
  28 test_expect_success 'create http-accessible bare repository with loose objects' '
  29         cp -R .git "$HTTPD_DOCUMENT_ROOT_PATH/repo.git" &&
  30         (cd "$HTTPD_DOCUMENT_ROOT_PATH/repo.git" &&
  31          git config core.bare true &&
  32          mkdir -p hooks &&
  33          write_script "hooks/post-update" <<-\EOF &&
  34          exec git update-server-info
  35         EOF
  36          hooks/post-update
  37         ) &&
  38         git remote add public "$HTTPD_DOCUMENT_ROOT_PATH/repo.git" &&
  39         git push public main:main
  40 '
  41
  42 test_expect_success 'clone http repository' '
  43         git clone $HTTPD_URL/dumb/repo.git clone-tmpl &&
  44         cp -R clone-tmpl clone &&
  45         test_cmp file clone/file
  46 '
  47
  48 test_expect_success 'list refs from outside any repository' '
  49         cat >expect <<-EOF &&
  50         $(git rev-parse main)   HEAD
  51         $(git rev-parse main)   refs/heads/main
  52         EOF
  53         nongit git ls-remote "$HTTPD_URL/dumb/repo.git" >actual &&
  54         test_cmp expect actual
  55 '
  56
  57 test_expect_success 'create password-protected repository' '
  58         mkdir -p "$HTTPD_DOCUMENT_ROOT_PATH/auth/dumb/" &&
  59         cp -Rf "$HTTPD_DOCUMENT_ROOT_PATH/repo.git" \
  60                "$HTTPD_DOCUMENT_ROOT_PATH/auth/dumb/repo.git"
  61 '
  62
  63 test_expect_success 'create empty remote repository' '
  64         git init --bare "$HTTPD_DOCUMENT_ROOT_PATH/empty.git" &&
  65         (cd "$HTTPD_DOCUMENT_ROOT_PATH/empty.git" &&
  66          mkdir -p hooks &&
  67          write_script "hooks/post-update" <<-\EOF &&
  68          exec git update-server-info
  69         EOF
  70          hooks/post-update
  71         )
  72 '
  73
  74 test_expect_success 'empty dumb HTTP repository has default hash algorithm' '
  75         test_when_finished "rm -fr clone-empty" &&
  76         git clone $HTTPD_URL/dumb/empty.git clone-empty &&
  77         git -C clone-empty rev-parse --show-object-format >empty-format &&
  78         test "$(cat empty-format)" = "$(test_oid algo)"
  79 '
  80
  81 setup_askpass_helper
  82
  83 test_expect_success 'cloning password-protected repository can fail' '
  84         set_askpass wrong &&
  85         test_must_fail git clone "$HTTPD_URL/auth/dumb/repo.git" clone-auth-fail &&
  86         expect_askpass both wrong
  87 '
  88
  89 test_expect_success 'http auth can use user/pass in URL' '
  90         set_askpass wrong &&
  91         git clone "$HTTPD_URL_USER_PASS/auth/dumb/repo.git" clone-auth-none &&
  92         expect_askpass none
  93 '
  94
  95 test_expect_success 'http auth can use just user in URL' '
  96         set_askpass wrong pass@host &&
  97         git clone "$HTTPD_URL_USER/auth/dumb/repo.git" clone-auth-pass &&
  98         expect_askpass pass user@host
  99 '
 100
 101 test_expect_success 'http auth can request both user and pass' '
 102         set_askpass user@host pass@host &&
 103         git clone "$HTTPD_URL/auth/dumb/repo.git" clone-auth-both &&
 104         expect_askpass both user@host
 105 '
 106
 107 test_expect_success 'http auth respects credential helper config' '
 108         test_config_global credential.helper "!f() {
 109                 cat >/dev/null
 110                 echo username=user@host
 111                 echo password=pass@host
 112         }; f" &&
 113         set_askpass wrong &&
 114         git clone "$HTTPD_URL/auth/dumb/repo.git" clone-auth-helper &&
 115         expect_askpass none
 116 '
 117
 118 test_expect_success 'http auth can get username from config' '
 119         test_config_global "credential.$HTTPD_URL.username" user@host &&
 120         set_askpass wrong pass@host &&
 121         git clone "$HTTPD_URL/auth/dumb/repo.git" clone-auth-user &&
 122         expect_askpass pass user@host
 123 '
 124
 125 test_expect_success 'configured username does not override URL' '
 126         test_config_global "credential.$HTTPD_URL.username" wrong &&
 127         set_askpass wrong pass@host &&
 128         git clone "$HTTPD_URL_USER/auth/dumb/repo.git" clone-auth-user2 &&
 129         expect_askpass pass user@host
 130 '
 131
 132 test_expect_success 'set up repo with http submodules' '
 133         git init super &&
 134         set_askpass user@host pass@host &&
 135         (
 136                 cd super &&
 137                 git submodule add "$HTTPD_URL/auth/dumb/repo.git" sub &&
 138                 git commit -m "add submodule"
 139         )
 140 '
 141
 142 test_expect_success 'cmdline credential config passes to submodule via clone' '
 143         set_askpass wrong pass@host &&
 144         test_must_fail git clone --recursive super super-clone &&
 145         rm -rf super-clone &&
 146
 147         set_askpass wrong pass@host &&
 148         git -c "credential.$HTTPD_URL.username=user@host" \
 149                 clone --recursive super super-clone &&
 150         expect_askpass pass user@host
 151 '
 152
 153 test_expect_success 'cmdline credential config passes submodule via fetch' '
 154         set_askpass wrong pass@host &&
 155         test_must_fail git -C super-clone fetch --recurse-submodules &&
 156
 157         set_askpass wrong pass@host &&
 158         git -C super-clone \
 159             -c "credential.$HTTPD_URL.username=user@host" \
 160             fetch --recurse-submodules &&
 161         expect_askpass pass user@host
 162 '
 163
 164 test_expect_success 'cmdline credential config passes submodule update' '
 165         # advance the submodule HEAD so that a fetch is required
 166         git commit --allow-empty -m foo &&
 167         git push "$HTTPD_DOCUMENT_ROOT_PATH/auth/dumb/repo.git" HEAD &&
 168         sha1=$(git rev-parse HEAD) &&
 169         git -C super-clone update-index --cacheinfo 160000,$sha1,sub &&
 170
 171         set_askpass wrong pass@host &&
 172         test_must_fail git -C super-clone submodule update &&
 173
 174         set_askpass wrong pass@host &&
 175         git -C super-clone \
 176             -c "credential.$HTTPD_URL.username=user@host" \
 177             submodule update &&
 178         expect_askpass pass user@host
 179 '
 180
 181 test_expect_success 'fetch changes via http' '
 182         echo content >>file &&
 183         git commit -a -m two &&
 184         git push public &&
 185         (cd clone && git pull) &&
 186         test_cmp file clone/file
 187 '
 188
 189 test_expect_success 'fetch changes via manual http-fetch' '
 190         cp -R clone-tmpl clone2 &&
 191
 192         HEAD=$(git rev-parse --verify HEAD) &&
 193         (cd clone2 &&
 194          git http-fetch -a -w heads/main-new $HEAD $(git config remote.origin.url) &&
 195          git checkout main-new &&
 196          test $HEAD = $(git rev-parse --verify HEAD)) &&
 197         test_cmp file clone2/file
 198 '
 199
 200 test_expect_success 'manual http-fetch without -a works just as well' '
 201         cp -R clone-tmpl clone3 &&
 202
 203         HEAD=$(git rev-parse --verify HEAD) &&
 204         (cd clone3 &&
 205          git http-fetch -w heads/main-new $HEAD $(git config remote.origin.url) &&
 206          git checkout main-new &&
 207          test $HEAD = $(git rev-parse --verify HEAD)) &&
 208         test_cmp file clone3/file
 209 '
 210
 211 test_expect_success 'http remote detects correct HEAD' '
 212         git push public main:other &&
 213         (cd clone &&
 214          git remote set-head origin -d &&
 215          git remote set-head origin -a &&
 216          git symbolic-ref refs/remotes/origin/HEAD > output &&
 217          echo refs/remotes/origin/main > expect &&
 218          test_cmp expect output
 219         )
 220 '
 221
 222 test_expect_success 'fetch packed objects' '
 223         cp -R "$HTTPD_DOCUMENT_ROOT_PATH"/repo.git "$HTTPD_DOCUMENT_ROOT_PATH"/repo_pack.git &&
 224         (cd "$HTTPD_DOCUMENT_ROOT_PATH"/repo_pack.git &&
 225          git --bare repack -a -d
 226         ) &&
 227         git clone $HTTPD_URL/dumb/repo_pack.git
 228 '
 229
 230 test_expect_success 'http-fetch --packfile' '
 231         # Arbitrary hash. Use rev-parse so that we get one of the correct
 232         # length.
 233         ARBITRARY=$(git -C "$HTTPD_DOCUMENT_ROOT_PATH"/repo_pack.git rev-parse HEAD) &&
 234
 235         git init packfileclient &&
 236         p=$(cd "$HTTPD_DOCUMENT_ROOT_PATH"/repo_pack.git && ls objects/pack/pack-*.pack) &&
 237         git -C packfileclient http-fetch --packfile=$ARBITRARY \
 238                 --index-pack-arg=index-pack --index-pack-arg=--stdin \
 239                 --index-pack-arg=--keep \
 240                 "$HTTPD_URL"/dumb/repo_pack.git/$p >out &&
 241
 242         grep "^keep.[0-9a-f]\{16,\}$" out &&
 243         cut -c6- out >packhash &&
 244
 245         # Ensure that the expected files are generated
 246         test -e "packfileclient/.git/objects/pack/pack-$(cat packhash).pack" &&
 247         test -e "packfileclient/.git/objects/pack/pack-$(cat packhash).idx" &&
 248         test -e "packfileclient/.git/objects/pack/pack-$(cat packhash).keep" &&
 249
 250         # Ensure that it has the HEAD of repo_pack, at least
 251         HASH=$(git -C "$HTTPD_DOCUMENT_ROOT_PATH"/repo_pack.git rev-parse HEAD) &&
 252         git -C packfileclient cat-file -e "$HASH"
 253 '
 254
 255 test_expect_success 'fetch notices corrupt pack' '
 256         cp -R "$HTTPD_DOCUMENT_ROOT_PATH"/repo_pack.git "$HTTPD_DOCUMENT_ROOT_PATH"/repo_bad1.git &&
 257         (cd "$HTTPD_DOCUMENT_ROOT_PATH"/repo_bad1.git &&
 258          p=$(ls objects/pack/pack-*.pack) &&
 259          chmod u+w $p &&
 260          printf %0256d 0 | dd of=$p bs=256 count=1 seek=1 conv=notrunc
 261         ) &&
 262         mkdir repo_bad1.git &&
 263         (cd repo_bad1.git &&
 264          git --bare init &&
 265          test_must_fail git --bare fetch $HTTPD_URL/dumb/repo_bad1.git &&
 266          test 0 = $(ls objects/pack/pack-*.pack | wc -l)
 267         )
 268 '
 269
 270 test_expect_success 'http-fetch --packfile with corrupt pack' '
 271         rm -rf packfileclient &&
 272         git init packfileclient &&
 273         p=$(cd "$HTTPD_DOCUMENT_ROOT_PATH"/repo_bad1.git && ls objects/pack/pack-*.pack) &&
 274         test_must_fail git -C packfileclient http-fetch --packfile \
 275                 "$HTTPD_URL"/dumb/repo_bad1.git/$p
 276 '
 277
 278 test_expect_success 'fetch notices corrupt idx' '
 279         cp -R "$HTTPD_DOCUMENT_ROOT_PATH"/repo_pack.git "$HTTPD_DOCUMENT_ROOT_PATH"/repo_bad2.git &&
 280         (cd "$HTTPD_DOCUMENT_ROOT_PATH"/repo_bad2.git &&
 281          p=$(ls objects/pack/pack-*.idx) &&
 282          chmod u+w $p &&
 283          printf %0256d 0 | dd of=$p bs=256 count=1 seek=1 conv=notrunc
 284         ) &&
 285         mkdir repo_bad2.git &&
 286         (cd repo_bad2.git &&
 287          git --bare init &&
 288          test_must_fail git --bare fetch $HTTPD_URL/dumb/repo_bad2.git &&
 289          test 0 = $(ls objects/pack | wc -l)
 290         )
 291 '
 292
 293 test_expect_success 'fetch can handle previously-fetched .idx files' '
 294         git checkout --orphan branch1 &&
 295         echo base >file &&
 296         git add file &&
 297         git commit -m base &&
 298         git --bare init "$HTTPD_DOCUMENT_ROOT_PATH"/repo_packed_branches.git &&
 299         git push "$HTTPD_DOCUMENT_ROOT_PATH"/repo_packed_branches.git branch1 &&
 300         git --git-dir="$HTTPD_DOCUMENT_ROOT_PATH"/repo_packed_branches.git repack -d &&
 301         git checkout -b branch2 branch1 &&
 302         echo b2 >>file &&
 303         git commit -a -m b2 &&
 304         git push "$HTTPD_DOCUMENT_ROOT_PATH"/repo_packed_branches.git branch2 &&
 305         git --git-dir="$HTTPD_DOCUMENT_ROOT_PATH"/repo_packed_branches.git repack -d &&
 306         git --bare init clone_packed_branches.git &&
 307         git --git-dir=clone_packed_branches.git fetch "$HTTPD_URL"/dumb/repo_packed_branches.git branch1:branch1 &&
 308         git --git-dir=clone_packed_branches.git fetch "$HTTPD_URL"/dumb/repo_packed_branches.git branch2:branch2
 309 '
 310
 311 test_expect_success 'did not use upload-pack service' '
 312         ! grep "/git-upload-pack" "$HTTPD_ROOT_PATH/access.log"
 313 '
 314
 315 test_expect_success 'git client shows text/plain errors' '
 316         test_must_fail git clone "$HTTPD_URL/error/text" 2>stderr &&
 317         grep "this is the error message" stderr
 318 '
 319
 320 test_expect_success 'git client does not show html errors' '
 321         test_must_fail git clone "$HTTPD_URL/error/html" 2>stderr &&
 322         ! grep "this is the error message" stderr
 323 '
 324
 325 test_expect_success 'git client shows text/plain with a charset' '
 326         test_must_fail git clone "$HTTPD_URL/error/charset" 2>stderr &&
 327         grep "this is the error message" stderr
 328 '
 329
 330 test_expect_success 'http error messages are reencoded' '
 331         test_must_fail git clone "$HTTPD_URL/error/utf16" 2>stderr &&
 332         grep "this is the error message" stderr
 333 '
 334
 335 test_expect_success 'reencoding is robust to whitespace oddities' '
 336         test_must_fail git clone "$HTTPD_URL/error/odd-spacing" 2>stderr &&
 337         grep "this is the error message" stderr
 338 '
 339
 340 check_language () {
 341         case "$2" in
 342         '')
 343                 >expect
 344                 ;;
 345         ?*)
 346                 echo "=> Send header: Accept-Language: $1" >expect
 347                 ;;
 348         esac &&
 349         GIT_TRACE_CURL=true \
 350         LANGUAGE=$2 \
 351         git ls-remote "$HTTPD_URL/dumb/repo.git" >output 2>&1 &&
 352         tr -d '\015' <output |
 353         sort -u |
 354         sed -ne '/^=> Send header: Accept-Language:/ p' >actual &&
 355         test_cmp expect actual
 356 }
 357
 358 test_expect_success 'git client sends Accept-Language based on LANGUAGE' '
 359         check_language "ko-KR, *;q=0.9" ko_KR.UTF-8'
 360
 361 test_expect_success 'git client sends Accept-Language correctly with unordinary LANGUAGE' '
 362         check_language "ko-KR, *;q=0.9" "ko_KR:" &&
 363         check_language "ko-KR, en-US;q=0.9, *;q=0.8" "ko_KR::en_US" &&
 364         check_language "ko-KR, *;q=0.9" ":::ko_KR" &&
 365         check_language "ko-KR, en-US;q=0.9, *;q=0.8" "ko_KR!!:en_US" &&
 366         check_language "ko-KR, ja-JP;q=0.9, *;q=0.8" "ko_KR en_US:ja_JP"'
 367
 368 test_expect_success 'git client sends Accept-Language with many preferred languages' '
 369         check_language "ko-KR, en-US;q=0.9, fr-CA;q=0.8, de;q=0.7, sr;q=0.6, \
 370 ja;q=0.5, zh;q=0.4, sv;q=0.3, pt;q=0.2, *;q=0.1" \
 371                 ko_KR.EUC-KR:en_US.UTF-8:fr_CA:de.UTF-8@euro:sr@latin:ja:zh:sv:pt &&
 372         check_language "ko-KR, en-US;q=0.99, fr-CA;q=0.98, de;q=0.97, sr;q=0.96, \
 373 ja;q=0.95, zh;q=0.94, sv;q=0.93, pt;q=0.92, nb;q=0.91, *;q=0.90" \
 374                 ko_KR.EUC-KR:en_US.UTF-8:fr_CA:de.UTF-8@euro:sr@latin:ja:zh:sv:pt:nb
 375 '
 376
 377 test_expect_success 'git client does not send an empty Accept-Language' '
 378         GIT_TRACE_CURL=true LANGUAGE= git ls-remote "$HTTPD_URL/dumb/repo.git" 2>stderr &&
 379         ! grep "^=> Send header: Accept-Language:" stderr
 380 '
 381
 382 test_expect_success 'remote-http complains cleanly about malformed urls' '
 383         test_must_fail git remote-http http::/example.com/repo.git 2>stderr &&
 384         test_i18ngrep "url has no scheme" stderr
 385 '
 386
 387 # NEEDSWORK: Writing commands to git-remote-curl can race against the latter
 388 # erroring out, producing SIGPIPE. Remove "ok=sigpipe" once transport-helper has
 389 # learned to handle early remote helper failures more cleanly.
 390 test_expect_success 'remote-http complains cleanly about empty scheme' '
 391         test_must_fail ok=sigpipe git ls-remote \
 392                 http::${HTTPD_URL#http}/dumb/repo.git 2>stderr &&
 393         test_i18ngrep "url has no scheme" stderr
 394 '
 395
 396 test_expect_success 'redirects can be forbidden/allowed' '
 397         test_must_fail git -c http.followRedirects=false \
 398                 clone $HTTPD_URL/dumb-redir/repo.git dumb-redir &&
 399         git -c http.followRedirects=true \
 400                 clone $HTTPD_URL/dumb-redir/repo.git dumb-redir 2>stderr
 401 '
 402
 403 test_expect_success 'redirects are reported to stderr' '
 404         # just look for a snippet of the redirected-to URL
 405         test_i18ngrep /dumb/ stderr
 406 '
 407
 408 test_expect_success 'non-initial redirects can be forbidden' '
 409         test_must_fail git -c http.followRedirects=initial \
 410                 clone $HTTPD_URL/redir-objects/repo.git redir-objects &&
 411         git -c http.followRedirects=true \
 412                 clone $HTTPD_URL/redir-objects/repo.git redir-objects
 413 '
 414
 415 test_expect_success 'http.followRedirects defaults to "initial"' '
 416         test_must_fail git clone $HTTPD_URL/redir-objects/repo.git default
 417 '
 418
 419 # The goal is for a clone of the "evil" repository, which has no objects
 420 # itself, to cause the client to fetch objects from the "victim" repository.
 421 test_expect_success 'set up evil alternates scheme' '
 422         victim=$HTTPD_DOCUMENT_ROOT_PATH/victim.git &&
 423         git init --bare "$victim" &&
 424         git -C "$victim" --work-tree=. commit --allow-empty -m secret &&
 425         git -C "$victim" repack -ad &&
 426         git -C "$victim" update-server-info &&
 427         sha1=$(git -C "$victim" rev-parse HEAD) &&
 428
 429         evil=$HTTPD_DOCUMENT_ROOT_PATH/evil.git &&
 430         git init --bare "$evil" &&
 431         # do this by hand to avoid object existence check
 432         printf "%s\\t%s\\n" $sha1 refs/heads/main >"$evil/info/refs"
 433 '
 434
 435 # Here we'll just redirect via HTTP. In a real-world attack these would be on
 436 # different servers, but we should reject it either way.
 437 test_expect_success 'http-alternates is a non-initial redirect' '
 438         echo "$HTTPD_URL/dumb/victim.git/objects" \
 439                 >"$evil/objects/info/http-alternates" &&
 440         test_must_fail git -c http.followRedirects=initial \
 441                 clone $HTTPD_URL/dumb/evil.git evil-initial &&
 442         git -c http.followRedirects=true \
 443                 clone $HTTPD_URL/dumb/evil.git evil-initial
 444 '
 445
 446 # Curl supports a lot of protocols that we'd prefer not to allow
 447 # http-alternates to use, but it's hard to test whether curl has
 448 # accessed, say, the SMTP protocol, because we are not running an SMTP server.
 449 # But we can check that it does not allow access to file://, which would
 450 # otherwise allow this clone to complete.
 451 test_expect_success 'http-alternates cannot point at funny protocols' '
 452         echo "file://$victim/objects" >"$evil/objects/info/http-alternates" &&
 453         test_must_fail git -c http.followRedirects=true \
 454                 clone "$HTTPD_URL/dumb/evil.git" evil-file
 455 '
 456
 457 test_expect_success 'http-alternates triggers not-from-user protocol check' '
 458         echo "$HTTPD_URL/dumb/victim.git/objects" \
 459                 >"$evil/objects/info/http-alternates" &&
 460         test_config_global http.followRedirects true &&
 461         test_must_fail git -c protocol.http.allow=user \
 462                 clone $HTTPD_URL/dumb/evil.git evil-user &&
 463         git -c protocol.http.allow=always \
 464                 clone $HTTPD_URL/dumb/evil.git evil-user
 465 '
 466
 467 test_expect_success 'can redirect through non-"info/refs?service=git-upload-pack" URL' '
 468         git clone "$HTTPD_URL/redir-to/dumb/repo.git"
 469 '
 470
 471 test_expect_success 'print HTTP error when any intermediate redirect throws error' '
 472         test_must_fail git clone "$HTTPD_URL/redir-to/502" 2> stderr &&
 473         test_i18ngrep "unable to access.*/redir-to/502" stderr
 474 '
 475
 476 test_expect_success 'fetching via http alternates works' '
 477         parent=$HTTPD_DOCUMENT_ROOT_PATH/alt-parent.git &&
 478         git init --bare "$parent" &&
 479         git -C "$parent" --work-tree=. commit --allow-empty -m foo &&
 480         git -C "$parent" update-server-info &&
 481         commit=$(git -C "$parent" rev-parse HEAD) &&
 482
 483         child=$HTTPD_DOCUMENT_ROOT_PATH/alt-child.git &&
 484         git init --bare "$child" &&
 485         echo "../../alt-parent.git/objects" >"$child/objects/info/alternates" &&
 486         git -C "$child" update-ref HEAD $commit &&
 487         git -C "$child" update-server-info &&
 488
 489         git -c http.followredirects=true clone "$HTTPD_URL/dumb/alt-child.git"
 490 '
 491
 492 test_done