connector/ldap: expand LDAP connector to include searches

connector/ldap/ldap_test.go

+package ldap
+
+import "testing"
+
+func TestEscapeFilter(t *testing.T) {
+	tests := []struct {
+		val  string
+		want string
+	}{
+		{"Five*Star", "Five\\2aStar"},
+		{"c:\\File", "c:\\5cFile"},
+		{"John (2nd)", "John \\282nd\\29"},
+		{string([]byte{0, 0, 0, 4}), "\\00\\00\\00\\04"},
+		{"Chloé", "Chlo\\c3\\a9"},
+	}
+
+	for _, tc := range tests {
+		got := escapeFilter(tc.val)
+		if tc.want != got {
+			t.Errorf("value %q want=%q, got=%q", tc.val, tc.want, got)
+		}
+	}
+}