(cd "$HTTPD_DOCUMENT_ROOT_PATH/repo.git" &&
git config core.bare true &&
mkdir -p hooks &&
- echo "exec git update-server-info" >hooks/post-update &&
- chmod +x hooks/post-update &&
+ write_script "hooks/post-update" <<-\EOF &&
+ exec git update-server-info
+ EOF
hooks/post-update
) &&
git remote add public "$HTTPD_DOCUMENT_ROOT_PATH/repo.git" &&
test_cmp file clone/file
'
+test_expect_success 'list refs from outside any repository' '
+ cat >expect <<-EOF &&
+ $(git rev-parse master) HEAD
+ $(git rev-parse master) refs/heads/master
+ EOF
+ nongit git ls-remote "$HTTPD_URL/dumb/repo.git" >actual &&
+ test_cmp expect actual
+'
+
test_expect_success 'create password-protected repository' '
mkdir -p "$HTTPD_DOCUMENT_ROOT_PATH/auth/dumb/" &&
cp -Rf "$HTTPD_DOCUMENT_ROOT_PATH/repo.git" \
test_must_fail git remote-http http::/example.com/repo.git
'
+test_expect_success 'redirects can be forbidden/allowed' '
+ test_must_fail git -c http.followRedirects=false \
+ clone $HTTPD_URL/dumb-redir/repo.git dumb-redir &&
+ git -c http.followRedirects=true \
+ clone $HTTPD_URL/dumb-redir/repo.git dumb-redir 2>stderr
+'
+
+test_expect_success 'redirects are reported to stderr' '
+ # just look for a snippet of the redirected-to URL
+ test_i18ngrep /dumb/ stderr
+'
+
+test_expect_success 'non-initial redirects can be forbidden' '
+ test_must_fail git -c http.followRedirects=initial \
+ clone $HTTPD_URL/redir-objects/repo.git redir-objects &&
+ git -c http.followRedirects=true \
+ clone $HTTPD_URL/redir-objects/repo.git redir-objects
+'
+
+test_expect_success 'http.followRedirects defaults to "initial"' '
+ test_must_fail git clone $HTTPD_URL/redir-objects/repo.git default
+'
+
+# The goal is for a clone of the "evil" repository, which has no objects
+# itself, to cause the client to fetch objects from the "victim" repository.
+test_expect_success 'set up evil alternates scheme' '
+ victim=$HTTPD_DOCUMENT_ROOT_PATH/victim.git &&
+ git init --bare "$victim" &&
+ git -C "$victim" --work-tree=. commit --allow-empty -m secret &&
+ git -C "$victim" repack -ad &&
+ git -C "$victim" update-server-info &&
+ sha1=$(git -C "$victim" rev-parse HEAD) &&
+
+ evil=$HTTPD_DOCUMENT_ROOT_PATH/evil.git &&
+ git init --bare "$evil" &&
+ # do this by hand to avoid object existence check
+ printf "%s\\t%s\\n" $sha1 refs/heads/master >"$evil/info/refs"
+'
+
+# Here we'll just redirect via HTTP. In a real-world attack these would be on
+# different servers, but we should reject it either way.
+test_expect_success 'http-alternates is a non-initial redirect' '
+ echo "$HTTPD_URL/dumb/victim.git/objects" \
+ >"$evil/objects/info/http-alternates" &&
+ test_must_fail git -c http.followRedirects=initial \
+ clone $HTTPD_URL/dumb/evil.git evil-initial &&
+ git -c http.followRedirects=true \
+ clone $HTTPD_URL/dumb/evil.git evil-initial
+'
+
+# Curl supports a lot of protocols that we'd prefer not to allow
+# http-alternates to use, but it's hard to test whether curl has
+# accessed, say, the SMTP protocol, because we are not running an SMTP server.
+# But we can check that it does not allow access to file://, which would
+# otherwise allow this clone to complete.
+test_expect_success 'http-alternates cannot point at funny protocols' '
+ echo "file://$victim/objects" >"$evil/objects/info/http-alternates" &&
+ test_must_fail git -c http.followRedirects=true \
+ clone "$HTTPD_URL/dumb/evil.git" evil-file
+'
+
+test_expect_success 'http-alternates triggers not-from-user protocol check' '
+ echo "$HTTPD_URL/dumb/victim.git/objects" \
+ >"$evil/objects/info/http-alternates" &&
+ test_config_global http.followRedirects true &&
+ test_must_fail git -c protocol.http.allow=user \
+ clone $HTTPD_URL/dumb/evil.git evil-user &&
+ git -c protocol.http.allow=always \
+ clone $HTTPD_URL/dumb/evil.git evil-user
+'
+
+test_expect_success 'can redirect through non-"info/refs?service=git-upload-pack" URL' '
+ git clone "$HTTPD_URL/redir-to/dumb/repo.git"
+'
+
+test_expect_success 'print HTTP error when any intermediate redirect throws error' '
+ test_must_fail git clone "$HTTPD_URL/redir-to/502" 2> stderr &&
+ test_i18ngrep "unable to access.*/redir-to/502" stderr
+'
+
stop_httpd
test_done