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 \
 231                 --index-pack-arg=index-pack --index-pack-arg=--stdin \
 232                 --index-pack-arg=--keep \
 233                 "$HTTPD_URL"/dumb/repo_pack.git/$p >out &&
 234
 235         grep "^keep.[0-9a-f]\{16,\}$" out &&
 236         cut -c6- out >packhash &&
 237
 238         # Ensure that the expected files are generated
 239         test -e "packfileclient/.git/objects/pack/pack-$(cat packhash).pack" &&
 240         test -e "packfileclient/.git/objects/pack/pack-$(cat packhash).idx" &&
 241         test -e "packfileclient/.git/objects/pack/pack-$(cat packhash).keep" &&
 242
 243         # Ensure that it has the HEAD of repo_pack, at least
 244         HASH=$(git -C "$HTTPD_DOCUMENT_ROOT_PATH"/repo_pack.git rev-parse HEAD) &&
 245         git -C packfileclient cat-file -e "$HASH"
 246 '
 247
 248 test_expect_success 'fetch notices corrupt pack' '
 249         cp -R "$HTTPD_DOCUMENT_ROOT_PATH"/repo_pack.git "$HTTPD_DOCUMENT_ROOT_PATH"/repo_bad1.git &&
 250         (cd "$HTTPD_DOCUMENT_ROOT_PATH"/repo_bad1.git &&
 251          p=$(ls objects/pack/pack-*.pack) &&
 252          chmod u+w $p &&
 253          printf %0256d 0 | dd of=$p bs=256 count=1 seek=1 conv=notrunc
 254         ) &&
 255         mkdir repo_bad1.git &&
 256         (cd repo_bad1.git &&
 257          git --bare init &&
 258          test_must_fail git --bare fetch $HTTPD_URL/dumb/repo_bad1.git &&
 259          test 0 = $(ls objects/pack/pack-*.pack | wc -l)
 260         )
 261 '
 262
 263 test_expect_success 'http-fetch --packfile with corrupt pack' '
 264         rm -rf packfileclient &&
 265         git init packfileclient &&
 266         p=$(cd "$HTTPD_DOCUMENT_ROOT_PATH"/repo_bad1.git && ls objects/pack/pack-*.pack) &&
 267         test_must_fail git -C packfileclient http-fetch --packfile \
 268                 "$HTTPD_URL"/dumb/repo_bad1.git/$p
 269 '
 270
 271 test_expect_success 'fetch notices corrupt idx' '
 272         cp -R "$HTTPD_DOCUMENT_ROOT_PATH"/repo_pack.git "$HTTPD_DOCUMENT_ROOT_PATH"/repo_bad2.git &&
 273         (cd "$HTTPD_DOCUMENT_ROOT_PATH"/repo_bad2.git &&
 274          p=$(ls objects/pack/pack-*.idx) &&
 275          chmod u+w $p &&
 276          printf %0256d 0 | dd of=$p bs=256 count=1 seek=1 conv=notrunc
 277         ) &&
 278         mkdir repo_bad2.git &&
 279         (cd repo_bad2.git &&
 280          git --bare init &&
 281          test_must_fail git --bare fetch $HTTPD_URL/dumb/repo_bad2.git &&
 282          test 0 = $(ls objects/pack | wc -l)
 283         )
 284 '
 285
 286 test_expect_success 'fetch can handle previously-fetched .idx files' '
 287         git checkout --orphan branch1 &&
 288         echo base >file &&
 289         git add file &&
 290         git commit -m base &&
 291         git --bare init "$HTTPD_DOCUMENT_ROOT_PATH"/repo_packed_branches.git &&
 292         git push "$HTTPD_DOCUMENT_ROOT_PATH"/repo_packed_branches.git branch1 &&
 293         git --git-dir="$HTTPD_DOCUMENT_ROOT_PATH"/repo_packed_branches.git repack -d &&
 294         git checkout -b branch2 branch1 &&
 295         echo b2 >>file &&
 296         git commit -a -m b2 &&
 297         git push "$HTTPD_DOCUMENT_ROOT_PATH"/repo_packed_branches.git branch2 &&
 298         git --git-dir="$HTTPD_DOCUMENT_ROOT_PATH"/repo_packed_branches.git repack -d &&
 299         git --bare init clone_packed_branches.git &&
 300         git --git-dir=clone_packed_branches.git fetch "$HTTPD_URL"/dumb/repo_packed_branches.git branch1:branch1 &&
 301         git --git-dir=clone_packed_branches.git fetch "$HTTPD_URL"/dumb/repo_packed_branches.git branch2:branch2
 302 '
 303
 304 test_expect_success 'did not use upload-pack service' '
 305         ! grep "/git-upload-pack" "$HTTPD_ROOT_PATH/access.log"
 306 '
 307
 308 test_expect_success 'git client shows text/plain errors' '
 309         test_must_fail git clone "$HTTPD_URL/error/text" 2>stderr &&
 310         grep "this is the error message" stderr
 311 '
 312
 313 test_expect_success 'git client does not show html errors' '
 314         test_must_fail git clone "$HTTPD_URL/error/html" 2>stderr &&
 315         ! grep "this is the error message" stderr
 316 '
 317
 318 test_expect_success 'git client shows text/plain with a charset' '
 319         test_must_fail git clone "$HTTPD_URL/error/charset" 2>stderr &&
 320         grep "this is the error message" stderr
 321 '
 322
 323 test_expect_success 'http error messages are reencoded' '
 324         test_must_fail git clone "$HTTPD_URL/error/utf16" 2>stderr &&
 325         grep "this is the error message" stderr
 326 '
 327
 328 test_expect_success 'reencoding is robust to whitespace oddities' '
 329         test_must_fail git clone "$HTTPD_URL/error/odd-spacing" 2>stderr &&
 330         grep "this is the error message" stderr
 331 '
 332
 333 check_language () {
 334         case "$2" in
 335         '')
 336                 >expect
 337                 ;;
 338         ?*)
 339                 echo "=> Send header: Accept-Language: $1" >expect
 340                 ;;
 341         esac &&
 342         GIT_TRACE_CURL=true \
 343         LANGUAGE=$2 \
 344         git ls-remote "$HTTPD_URL/dumb/repo.git" >output 2>&1 &&
 345         tr -d '\015' <output |
 346         sort -u |
 347         sed -ne '/^=> Send header: Accept-Language:/ p' >actual &&
 348         test_cmp expect actual
 349 }
 350
 351 test_expect_success 'git client sends Accept-Language based on LANGUAGE' '
 352         check_language "ko-KR, *;q=0.9" ko_KR.UTF-8'
 353
 354 test_expect_success 'git client sends Accept-Language correctly with unordinary LANGUAGE' '
 355         check_language "ko-KR, *;q=0.9" "ko_KR:" &&
 356         check_language "ko-KR, en-US;q=0.9, *;q=0.8" "ko_KR::en_US" &&
 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, ja-JP;q=0.9, *;q=0.8" "ko_KR en_US:ja_JP"'
 360
 361 test_expect_success 'git client sends Accept-Language with many preferred languages' '
 362         check_language "ko-KR, en-US;q=0.9, fr-CA;q=0.8, de;q=0.7, sr;q=0.6, \
 363 ja;q=0.5, zh;q=0.4, sv;q=0.3, pt;q=0.2, *;q=0.1" \
 364                 ko_KR.EUC-KR:en_US.UTF-8:fr_CA:de.UTF-8@euro:sr@latin:ja:zh:sv:pt &&
 365         check_language "ko-KR, en-US;q=0.99, fr-CA;q=0.98, de;q=0.97, sr;q=0.96, \
 366 ja;q=0.95, zh;q=0.94, sv;q=0.93, pt;q=0.92, nb;q=0.91, *;q=0.90" \
 367                 ko_KR.EUC-KR:en_US.UTF-8:fr_CA:de.UTF-8@euro:sr@latin:ja:zh:sv:pt:nb
 368 '
 369
 370 test_expect_success 'git client does not send an empty Accept-Language' '
 371         GIT_TRACE_CURL=true LANGUAGE= git ls-remote "$HTTPD_URL/dumb/repo.git" 2>stderr &&
 372         ! grep "^=> Send header: Accept-Language:" stderr
 373 '
 374
 375 test_expect_success 'remote-http complains cleanly about malformed urls' '
 376         test_must_fail git remote-http http::/example.com/repo.git 2>stderr &&
 377         test_i18ngrep "url has no scheme" stderr
 378 '
 379
 380 # NEEDSWORK: Writing commands to git-remote-curl can race against the latter
 381 # erroring out, producing SIGPIPE. Remove "ok=sigpipe" once transport-helper has
 382 # learned to handle early remote helper failures more cleanly.
 383 test_expect_success 'remote-http complains cleanly about empty scheme' '
 384         test_must_fail ok=sigpipe git ls-remote \
 385                 http::${HTTPD_URL#http}/dumb/repo.git 2>stderr &&
 386         test_i18ngrep "url has no scheme" stderr
 387 '
 388
 389 test_expect_success 'redirects can be forbidden/allowed' '
 390         test_must_fail git -c http.followRedirects=false \
 391                 clone $HTTPD_URL/dumb-redir/repo.git dumb-redir &&
 392         git -c http.followRedirects=true \
 393                 clone $HTTPD_URL/dumb-redir/repo.git dumb-redir 2>stderr
 394 '
 395
 396 test_expect_success 'redirects are reported to stderr' '
 397         # just look for a snippet of the redirected-to URL
 398         test_i18ngrep /dumb/ stderr
 399 '
 400
 401 test_expect_success 'non-initial redirects can be forbidden' '
 402         test_must_fail git -c http.followRedirects=initial \
 403                 clone $HTTPD_URL/redir-objects/repo.git redir-objects &&
 404         git -c http.followRedirects=true \
 405                 clone $HTTPD_URL/redir-objects/repo.git redir-objects
 406 '
 407
 408 test_expect_success 'http.followRedirects defaults to "initial"' '
 409         test_must_fail git clone $HTTPD_URL/redir-objects/repo.git default
 410 '
 411
 412 # The goal is for a clone of the "evil" repository, which has no objects
 413 # itself, to cause the client to fetch objects from the "victim" repository.
 414 test_expect_success 'set up evil alternates scheme' '
 415         victim=$HTTPD_DOCUMENT_ROOT_PATH/victim.git &&
 416         git init --bare "$victim" &&
 417         git -C "$victim" --work-tree=. commit --allow-empty -m secret &&
 418         git -C "$victim" repack -ad &&
 419         git -C "$victim" update-server-info &&
 420         sha1=$(git -C "$victim" rev-parse HEAD) &&
 421
 422         evil=$HTTPD_DOCUMENT_ROOT_PATH/evil.git &&
 423         git init --bare "$evil" &&
 424         # do this by hand to avoid object existence check
 425         printf "%s\\t%s\\n" $sha1 refs/heads/main >"$evil/info/refs"
 426 '
 427
 428 # Here we'll just redirect via HTTP. In a real-world attack these would be on
 429 # different servers, but we should reject it either way.
 430 test_expect_success 'http-alternates is a non-initial redirect' '
 431         echo "$HTTPD_URL/dumb/victim.git/objects" \
 432                 >"$evil/objects/info/http-alternates" &&
 433         test_must_fail git -c http.followRedirects=initial \
 434                 clone $HTTPD_URL/dumb/evil.git evil-initial &&
 435         git -c http.followRedirects=true \
 436                 clone $HTTPD_URL/dumb/evil.git evil-initial
 437 '
 438
 439 # Curl supports a lot of protocols that we'd prefer not to allow
 440 # http-alternates to use, but it's hard to test whether curl has
 441 # accessed, say, the SMTP protocol, because we are not running an SMTP server.
 442 # But we can check that it does not allow access to file://, which would
 443 # otherwise allow this clone to complete.
 444 test_expect_success 'http-alternates cannot point at funny protocols' '
 445         echo "file://$victim/objects" >"$evil/objects/info/http-alternates" &&
 446         test_must_fail git -c http.followRedirects=true \
 447                 clone "$HTTPD_URL/dumb/evil.git" evil-file
 448 '
 449
 450 test_expect_success 'http-alternates triggers not-from-user protocol check' '
 451         echo "$HTTPD_URL/dumb/victim.git/objects" \
 452                 >"$evil/objects/info/http-alternates" &&
 453         test_config_global http.followRedirects true &&
 454         test_must_fail git -c protocol.http.allow=user \
 455                 clone $HTTPD_URL/dumb/evil.git evil-user &&
 456         git -c protocol.http.allow=always \
 457                 clone $HTTPD_URL/dumb/evil.git evil-user
 458 '
 459
 460 test_expect_success 'can redirect through non-"info/refs?service=git-upload-pack" URL' '
 461         git clone "$HTTPD_URL/redir-to/dumb/repo.git"
 462 '
 463
 464 test_expect_success 'print HTTP error when any intermediate redirect throws error' '
 465         test_must_fail git clone "$HTTPD_URL/redir-to/502" 2> stderr &&
 466         test_i18ngrep "unable to access.*/redir-to/502" stderr
 467 '
 468
 469 test_expect_success 'fetching via http alternates works' '
 470         parent=$HTTPD_DOCUMENT_ROOT_PATH/alt-parent.git &&
 471         git init --bare "$parent" &&
 472         git -C "$parent" --work-tree=. commit --allow-empty -m foo &&
 473         git -C "$parent" update-server-info &&
 474         commit=$(git -C "$parent" rev-parse HEAD) &&
 475
 476         child=$HTTPD_DOCUMENT_ROOT_PATH/alt-child.git &&
 477         git init --bare "$child" &&
 478         echo "../../alt-parent.git/objects" >"$child/objects/info/alternates" &&
 479         git -C "$child" update-ref HEAD $commit &&
 480         git -C "$child" update-server-info &&
 481
 482         git -c http.followredirects=true clone "$HTTPD_URL/dumb/alt-child.git"
 483 '
 484
 485 test_done