fix(security): validate bundle and clean runtime secrets

scripts/test-vector-secret-policy.sh

@@ -16,11 +16,14 @@ printf 'owner-readonly' >"$tmp/readonly"
 printf 'too-open' >"$tmp/open"
 printf '# comment\n\nTHT_VECTOR_READER_PASSWORD=reader\nTHT_VECTOR_WRITER_PASSWORD=writer\n' >"$tmp/bundle"
 printf 'THT_VECTOR_READER_PASSWORD=reader\nTHT_VECTOR_WRITER_PASSWORD=writer\nTHT_DWH_API_KEY=one\nTHT_DWH_API_KEY=two\n' >"$tmp/duplicate-bundle"
+printf 'THT_VECTOR_READER_PASSWORD=reader\r\nTHT_VECTOR_WRITER_PASSWORD=writer\r\n' >"$tmp/crlf-bundle"
+awk 'BEGIN { printf "THT_VECTOR_READER_PASSWORD="; for (i = 1; i <= 16385; i++) printf "x"; print "" }' >"$tmp/long-line-bundle"
+awk 'BEGIN { for (i = 1; i <= 70000; i++) print "# filler" }' >"$tmp/large-bundle"
 chmod 0600 "$tmp/valid"
 chmod 0444 "$tmp/docker"
 chmod 0400 "$tmp/readonly"
 chmod 0640 "$tmp/open"
-chmod 0600 "$tmp/bundle" "$tmp/duplicate-bundle"
+chmod 0600 "$tmp/bundle" "$tmp/duplicate-bundle" "$tmp/crlf-bundle" "$tmp/long-line-bundle" "$tmp/large-bundle"
 
 for invalid in empty newline space; do
   if validate_secret_file "$tmp/$invalid" "$invalid" >/dev/null 2>&1; then
@@ -40,9 +43,16 @@ if validate_secret_file "$tmp/open" open >/dev/null 2>&1; then
 fi
 test "$(read_secret_file "$tmp/valid" valid)" = "safe-quoted-'-dollar-$"
 test "$(read_bundle_secret "$tmp/bundle" THT_VECTOR_READER_PASSWORD)" = reader
+test "$(read_bundle_secret "$tmp/crlf-bundle" THT_VECTOR_READER_PASSWORD)" = reader
 if read_bundle_secret "$tmp/duplicate-bundle" THT_VECTOR_READER_PASSWORD >/dev/null 2>&1; then
   echo "secret policy accepted a duplicate unrelated bundle key" >&2
   exit 1
 fi
+for invalid_bundle in long-line-bundle large-bundle; do
+  if read_bundle_secret "$tmp/$invalid_bundle" THT_VECTOR_READER_PASSWORD >/dev/null 2>&1; then
+    echo "secret policy accepted oversized $invalid_bundle" >&2
+    exit 1
+  fi
+done
 
 echo "shared vector secret policy contracts passed."