tlsproxy-setup: Prevent accidental overwrites.

[tlsproxy/tlsproxy.git] / src / tlsproxy-setup

diff --git a/src/tlsproxy-setup b/src/tlsproxy-setup
index 4b57a2220aafd62c888c6fba8bb9be82a2ef07cf..155b8c90786c9aff26a520b0d9caad45dfbec69d 100755 (executable)
--- a/src/tlsproxy-setup
+++ b/src/tlsproxy-setup
@@ -22,6 +22,24 @@
 
 set -e
 
+
+if test "$#" -ge 1 && test x"$*" != 'x--force'; then
+    echo "Usage: $0 [--force]" >&2
+    exit 1
+fi
+
+# Prevent accidental overwrites.
+if test x"$1" != 'x--force'; then
+    for x in proxy-ca-key.pem proxy-ca.pem \
+             proxy-key.pem proxy-invalid.pem proxy-dh.pem; do
+        if test -f "$x"; then
+            echo "File '$x' already exists. Use --force to overwrite." >&2
+            exit 2
+        fi
+    done
+fi
+
+
 tempfile=`mktemp`
 trap 'rm -f "$tempfile"' EXIT
 
@@ -59,4 +77,9 @@ certtool --generate-self-signed \
 
 rm "$tempfile"
 
+# Generate proxy Diffie-Hellman parameters.
+certtool --generate-dh-params \
+         --sec-param high \
+         --outfile proxy-dh.pem
+
 echo done