1 file changed, 113 insertions, 0 deletions
diff --git a/tests/t0200-security.sh b/tests/t0200-security.sh
new file mode 100644
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--- /dev/null
+++ b/tests/t0200-security.sh
@@ -0,0 +1,113 @@
+#!/bin/sh
+
+test_description='Check security fixes and fork-specific behavior'
+. ./setup.sh
+
+# A repo with an oversized blob, readmes that carry markup, and a directory,
+# plus a config that pins a tiny blob limit and groups directories.
+test_expect_success 'set up security fixtures' '
+	mkrepo repos/sec 1 &&
+	(
+		cd repos/sec &&
+		dd if=/dev/zero bs=1024 count=4 2>/dev/null | tr "\0" "X" >big.txt &&
+		printf "# Title\n<script>alert(1)</script>\n" >README.md &&
+		printf "<script>alert(2)</script>\n" >readme.txt &&
+		printf "top\n" >afile &&
+		mkdir zsub &&
+		printf "inner\n" >zsub/inner &&
+		git add -A &&
+		git commit -m fixtures
+	) &&
+	{
+		echo "virtual-root=/" &&
+		echo "cache-size=0" &&
+		echo "max-blob-size=1" &&
+		echo "enable-blame=1" &&
+		echo "enable-tree-group-dirs=1" &&
+		echo "repo.url=sec" &&
+		echo "repo.path=$PWD/repos/sec/.git"
+	} >seccgitrc
+'
+
+secq() { CGIT_CONFIG="$PWD/seccgitrc" QUERY_STRING="$1" cgit; }
+
+# --- Argument injection through the log id= parameter -----------------------
+# A tip beginning with a dash would be parsed as a git option, and
+# id=--output=<path> would create or truncate an arbitrary file.
+test_expect_success 'log id=--output does not write a file' '
+	rm -f pwned &&
+	cgit_query "url=foo/log&id=--output=$PWD/pwned" >tmp 2>&1 &&
+	! test -e pwned
+'
+
+test_expect_success 'log id=--output is rejected as an invalid revision' '
+	grep -i "invalid revision" tmp
+'
+
+test_expect_success 'a normal log still renders' '
+	cgit_query "url=foo/log" >tmp &&
+	grep -i "commit 5" tmp
+'
+
+test_expect_success 'a valid id= still renders the log' '
+	sha=$(git -C repos/foo rev-parse HEAD) &&
+	cgit_query "url=foo/log&id=$sha" >tmp &&
+	grep -i "commit 5" tmp
+'
+
+# --- max-blob-size is enforced before the object is read --------------------
+test_expect_success 'tree view refuses an oversized blob' '
+	secq "url=sec/tree/big.txt" | grep -iE "exceeds|too large"
+'
+
+test_expect_success 'plain view refuses an oversized blob' '
+	secq "url=sec/plain/big.txt" | grep -iE "exceeds|too large|413"
+'
+
+test_expect_success 'blame view refuses an oversized blob' '
+	secq "url=sec/blame/big.txt" | grep -iE "exceeds|too large"
+'
+
+test_expect_success 'a small blob is still served' '
+	secq "url=sec/plain/afile" | grep -F "top"
+'
+
+# --- Readme rendering escapes untrusted repository content ------------------
+test_expect_success 'markdown readme is escaped and marked for the client' '
+	{
+		echo "virtual-root=/" &&
+		echo "cache-size=0" &&
+		echo "repo.url=md" &&
+		echo "repo.path=$PWD/repos/sec/.git" &&
+		echo "repo.readme=master:README.md"
+	} >secmdrc &&
+	CGIT_CONFIG="$PWD/secmdrc" QUERY_STRING="url=md/about/" cgit >tmp &&
+	grep "data-markdown" tmp &&
+	grep "&lt;script&gt;" tmp &&
+	! grep "<script>alert(1)</script>" tmp
+'
+
+test_expect_success 'non-markdown readme without a filter is escaped' '
+	{
+		echo "virtual-root=/" &&
+		echo "cache-size=0" &&
+		echo "repo.url=txt" &&
+		echo "repo.path=$PWD/repos/sec/.git" &&
+		echo "repo.readme=master:readme.txt"
+	} >sectxtrc &&
+	CGIT_CONFIG="$PWD/sectxtrc" QUERY_STRING="url=txt/about/" cgit >tmp &&
+	grep "&lt;script&gt;" tmp &&
+	! grep "<script>alert(2)</script>" tmp
+'
+
+# --- Fork feature: directories are grouped before files in the tree ---------
+test_expect_success 'tree groups directories before files' '
+	secq "url=sec/tree/" >tmp &&
+	dirline=$(grep -n "tree/zsub" tmp | head -1 | cut -d: -f1) &&
+	fileline=$(grep -n "tree/afile" tmp | head -1 | cut -d: -f1) &&
+	test -n "$dirline" &&
+	test -n "$fileline" &&
+	test "$dirline" -lt "$fileline"
+'
+
+test_done