From 5a2517b926516b511bb7879d2c8f1ac5d5e8d8e8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C8=98tefan=20D=2E=20Mih=C4=83il=C4=83?=
 <stefan.mihaila@pm.me>
Date: Thu, 22 Aug 2019 19:23:53 +0200
Subject: [PATCH] Check for existing secrets and create them  more granularly

This allows an user to delete only the lnd certs for example and
run nix-shell to recreate them, leaving other secrets intact.
---
 secrets/generate_secrets.sh | 61 +++++++++++++++++++++----------------
 1 file changed, 34 insertions(+), 27 deletions(-)

diff --git a/secrets/generate_secrets.sh b/secrets/generate_secrets.sh
index bc56859..3b5f15b 100755
--- a/secrets/generate_secrets.sh
+++ b/secrets/generate_secrets.sh
@@ -2,33 +2,40 @@
 
 SECRETSFILE=secrets/secrets.nix
 
-if [ -e "$SECRETSFILE" ]; then
-    echo $SECRETSFILE already exists. No new secrets were generated.
-    exit 1
+if [ ! -e "$SECRETSFILE" ]; then
+    echo Write secrets to $SECRETSFILE
+    {
+        echo \{
+        echo "  bitcoinrpcpassword = \"$(apg -m 20 -x 20 -M Ncl -n 1)\";"
+        echo "  lnd-wallet-password = \"$(apg -m 20 -x 20 -M Ncl -n 1)\";"
+        echo "  lightning-charge-api-token = \"$(apg -m 20 -x 20 -M Ncl -n 1)\";"
+        echo "  liquidrpcpassword = \"$(apg -m 20 -x 20 -M Ncl -n 1)\";"
+        echo "  spark-wallet-password = \"$(apg -m 20 -x 20 -M Ncl -n 1)\";"
+        echo \}
+    } >> $SECRETSFILE
+    echo Done
+else
+    echo $SECRETSFILE already exists. Skipping.
 fi
 
-echo Write secrets to $SECRETSFILE
-{
-    echo \{
-    echo "  bitcoinrpcpassword = \"$(apg -m 20 -x 20 -M Ncl -n 1)\";"
-    echo "  lnd-wallet-password = \"$(apg -m 20 -x 20 -M Ncl -n 1)\";"
-    echo "  lightning-charge-api-token = \"$(apg -m 20 -x 20 -M Ncl -n 1)\";"
-    echo "  liquidrpcpassword = \"$(apg -m 20 -x 20 -M Ncl -n 1)\";"
-    echo "  spark-wallet-password = \"$(apg -m 20 -x 20 -M Ncl -n 1)\";"
-    echo \}
-} >> $SECRETSFILE
-echo Done
+if [ ! -e secrets/nginx.key ] || [ ! -e secrets/nginx.cert ]; then
+    echo Generate Nginx Self-Signed Cert
+    openssl genrsa -out secrets/nginx.key 2048
+    openssl req -new -key secrets/nginx.key -out secrets/nginx.csr -subj "/C=KN"
+    openssl x509 -req -days 1825 -in secrets/nginx.csr -signkey secrets/nginx.key -out secrets/nginx.cert
+    rm secrets/nginx.csr
+    echo Done
+else
+    echo Nginx Cert already exists. Skipping.
+fi
 
-echo Generate Self-Signed Cert
-openssl genrsa -out secrets/nginx.key 2048
-openssl req -new -key secrets/nginx.key -out secrets/nginx.csr -subj "/C=KN"
-openssl x509 -req -days 1825 -in secrets/nginx.csr -signkey secrets/nginx.key -out secrets/nginx.cert
-rm secrets/nginx.csr
-echo Done
-
-echo Generate LND compatible TLS Cert
-openssl ecparam -genkey -name prime256v1 -out secrets/lnd.key
-openssl req -config secrets/openssl.cnf -new -sha256 -key secrets/lnd.key -out secrets/lnd.csr -subj '/CN=localhost/O=lnd'
-openssl req -config secrets/openssl.cnf -x509 -sha256 -days 1825 -key secrets/lnd.key -in secrets/lnd.csr -out secrets/lnd.cert
-rm secrets/lnd.csr
-echo Done
+if [ ! -e secrets/lnd.key ] || [ ! -e secrets/lnd.cert ]; then
+    echo Generate LND compatible TLS Cert
+    openssl ecparam -genkey -name prime256v1 -out secrets/lnd.key
+    openssl req -config secrets/openssl.cnf -new -sha256 -key secrets/lnd.key -out secrets/lnd.csr -subj '/CN=localhost/O=lnd'
+    openssl req -config secrets/openssl.cnf -x509 -sha256 -days 1825 -key secrets/lnd.key -in secrets/lnd.csr -out secrets/lnd.cert
+    rm secrets/lnd.csr
+    echo Done
+else
+    echo LND cert already exists. Skipping.
+fi