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-rwxr-xr-xt/t7416-submodule-dash-url.sh225
1 files changed, 225 insertions, 0 deletions
diff --git a/t/t7416-submodule-dash-url.sh b/t/t7416-submodule-dash-url.sh
new file mode 100755
index 0000000..2ab566e
--- /dev/null
+++ b/t/t7416-submodule-dash-url.sh
@@ -0,0 +1,225 @@
+#!/bin/sh
+
+test_description='check handling of disallowed .gitmodule urls'
+
+TEST_PASSES_SANITIZE_LEAK=true
+. ./test-lib.sh
+
+test_expect_success 'setup' '
+ git config --global protocol.file.allow always
+'
+
+test_expect_success 'create submodule with protected dash in url' '
+ git init upstream &&
+ git -C upstream commit --allow-empty -m base &&
+ mv upstream ./-upstream &&
+ git submodule add ./-upstream sub &&
+ git add sub .gitmodules &&
+ git commit -m submodule
+'
+
+test_expect_success 'clone can recurse submodule' '
+ test_when_finished "rm -rf dst" &&
+ git clone --recurse-submodules . dst &&
+ echo base >expect &&
+ git -C dst/sub log -1 --format=%s >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'fsck accepts protected dash' '
+ test_when_finished "rm -rf dst" &&
+ git init --bare dst &&
+ git -C dst config transfer.fsckObjects true &&
+ git push dst HEAD
+'
+
+test_expect_success 'remove ./ protection from .gitmodules url' '
+ perl -i -pe "s{\./}{}" .gitmodules &&
+ git commit -am "drop protection"
+'
+
+test_expect_success 'clone rejects unprotected dash' '
+ test_when_finished "rm -rf dst" &&
+ test_must_fail git clone --recurse-submodules . dst 2>err &&
+ test_grep ignoring err
+'
+
+test_expect_success 'fsck rejects unprotected dash' '
+ test_when_finished "rm -rf dst" &&
+ git init --bare dst &&
+ git -C dst config transfer.fsckObjects true &&
+ test_must_fail git push dst HEAD 2>err &&
+ grep gitmodulesUrl err
+'
+
+test_expect_success 'trailing backslash is handled correctly' '
+ git init testmodule &&
+ test_commit -C testmodule c &&
+ git submodule add ./testmodule &&
+ : ensure that the name ends in a double backslash &&
+ sed -e "s|\\(submodule \"testmodule\\)\"|\\1\\\\\\\\\"|" \
+ -e "s|url = .*|url = \" --should-not-be-an-option\"|" \
+ <.gitmodules >.new &&
+ mv .new .gitmodules &&
+ git commit -am "Add testmodule" &&
+ test_must_fail git clone --verbose --recurse-submodules . dolly 2>err &&
+ test_grep ! "unknown option" err
+'
+
+test_expect_success 'fsck rejects missing URL scheme' '
+ git checkout --orphan missing-scheme &&
+ cat >.gitmodules <<-\EOF &&
+ [submodule "foo"]
+ url = http::one.example.com/foo.git
+ EOF
+ git add .gitmodules &&
+ test_tick &&
+ git commit -m "gitmodules with missing URL scheme" &&
+ test_when_finished "rm -rf dst" &&
+ git init --bare dst &&
+ git -C dst config transfer.fsckObjects true &&
+ test_must_fail git push dst HEAD 2>err &&
+ grep gitmodulesUrl err
+'
+
+test_expect_success 'fsck rejects relative URL resolving to missing scheme' '
+ git checkout --orphan relative-missing-scheme &&
+ cat >.gitmodules <<-\EOF &&
+ [submodule "foo"]
+ url = "..\\../.\\../:one.example.com/foo.git"
+ EOF
+ git add .gitmodules &&
+ test_tick &&
+ git commit -m "gitmodules with relative URL that strips off scheme" &&
+ test_when_finished "rm -rf dst" &&
+ git init --bare dst &&
+ git -C dst config transfer.fsckObjects true &&
+ test_must_fail git push dst HEAD 2>err &&
+ grep gitmodulesUrl err
+'
+
+test_expect_success 'fsck rejects empty URL scheme' '
+ git checkout --orphan empty-scheme &&
+ cat >.gitmodules <<-\EOF &&
+ [submodule "foo"]
+ url = http::://one.example.com/foo.git
+ EOF
+ git add .gitmodules &&
+ test_tick &&
+ git commit -m "gitmodules with empty URL scheme" &&
+ test_when_finished "rm -rf dst" &&
+ git init --bare dst &&
+ git -C dst config transfer.fsckObjects true &&
+ test_must_fail git push dst HEAD 2>err &&
+ grep gitmodulesUrl err
+'
+
+test_expect_success 'fsck rejects relative URL resolving to empty scheme' '
+ git checkout --orphan relative-empty-scheme &&
+ cat >.gitmodules <<-\EOF &&
+ [submodule "foo"]
+ url = ../../../:://one.example.com/foo.git
+ EOF
+ git add .gitmodules &&
+ test_tick &&
+ git commit -m "relative gitmodules URL resolving to empty scheme" &&
+ test_when_finished "rm -rf dst" &&
+ git init --bare dst &&
+ git -C dst config transfer.fsckObjects true &&
+ test_must_fail git push dst HEAD 2>err &&
+ grep gitmodulesUrl err
+'
+
+test_expect_success 'fsck rejects empty hostname' '
+ git checkout --orphan empty-host &&
+ cat >.gitmodules <<-\EOF &&
+ [submodule "foo"]
+ url = http:///one.example.com/foo.git
+ EOF
+ git add .gitmodules &&
+ test_tick &&
+ git commit -m "gitmodules with extra slashes" &&
+ test_when_finished "rm -rf dst" &&
+ git init --bare dst &&
+ git -C dst config transfer.fsckObjects true &&
+ test_must_fail git push dst HEAD 2>err &&
+ grep gitmodulesUrl err
+'
+
+test_expect_success 'fsck rejects relative url that produced empty hostname' '
+ git checkout --orphan messy-relative &&
+ cat >.gitmodules <<-\EOF &&
+ [submodule "foo"]
+ url = ../../..//one.example.com/foo.git
+ EOF
+ git add .gitmodules &&
+ test_tick &&
+ git commit -m "gitmodules abusing relative_path" &&
+ test_when_finished "rm -rf dst" &&
+ git init --bare dst &&
+ git -C dst config transfer.fsckObjects true &&
+ test_must_fail git push dst HEAD 2>err &&
+ grep gitmodulesUrl err
+'
+
+test_expect_success 'fsck permits embedded newline with unrecognized scheme' '
+ git checkout --orphan newscheme &&
+ cat >.gitmodules <<-\EOF &&
+ [submodule "foo"]
+ url = "data://acjbkd%0akajfdickajkd"
+ EOF
+ git add .gitmodules &&
+ git commit -m "gitmodules with unrecognized scheme" &&
+ test_when_finished "rm -rf dst" &&
+ git init --bare dst &&
+ git -C dst config transfer.fsckObjects true &&
+ git push dst HEAD
+'
+
+test_expect_success 'fsck rejects embedded newline in url' '
+ # create an orphan branch to avoid existing .gitmodules objects
+ git checkout --orphan newline &&
+ cat >.gitmodules <<-\EOF &&
+ [submodule "foo"]
+ url = "https://one.example.com?%0ahost=two.example.com/foo.git"
+ EOF
+ git add .gitmodules &&
+ git commit -m "gitmodules with newline" &&
+ test_when_finished "rm -rf dst" &&
+ git init --bare dst &&
+ git -C dst config transfer.fsckObjects true &&
+ test_must_fail git push dst HEAD 2>err &&
+ grep gitmodulesUrl err
+'
+
+test_expect_success 'fsck rejects embedded newline in relative url' '
+ git checkout --orphan relative-newline &&
+ cat >.gitmodules <<-\EOF &&
+ [submodule "foo"]
+ url = "./%0ahost=two.example.com/foo.git"
+ EOF
+ git add .gitmodules &&
+ git commit -m "relative url with newline" &&
+ test_when_finished "rm -rf dst" &&
+ git init --bare dst &&
+ git -C dst config transfer.fsckObjects true &&
+ test_must_fail git push dst HEAD 2>err &&
+ grep gitmodulesUrl err
+'
+
+test_expect_success 'fsck rejects embedded newline in git url' '
+ git checkout --orphan git-newline &&
+ cat >.gitmodules <<-\EOF &&
+ [submodule "foo"]
+ url = "git://example.com:1234/repo%0a.git"
+ EOF
+ git add .gitmodules &&
+ git commit -m "git url with newline" &&
+ test_when_finished "rm -rf dst" &&
+ git init --bare dst &&
+ git -C dst config transfer.fsckObjects true &&
+ test_must_fail git push dst HEAD 2>err &&
+ grep gitmodulesUrl err
+'
+
+test_done