1 files changed, 35 insertions, 0 deletions
diff --git a/community/bitcoin/bitcoin.post-install b/community/bitcoin/bitcoin.post-install
new file mode 100644
index 0000000000..9d2510fb2d
--- /dev/null
+++ b/community/bitcoin/bitcoin.post-install
@@ -0,0 +1,35 @@
+#!/bin/sh
+
+NORMAL="\033[1;0m"
+STRONG="\033[1;1m"
+GREEN="\033[1;32m"
+
+config=$(grep -F 'config=' /etc/init.d/bitcoin |sed 's/config=//')
+
+randgen() {
+	output=$(cat /dev/urandom | tr -dc '0-9a-zA-Z!@#$%^&*_+-' | head -c${1:-$1}) 2>/dev/null
+	echo $output
+}
+
+findRandomTcpPort(){
+	port=$(( 1024 + $(( $RANDOM % $(( 65534 - 1024 )) )) ))
+	while netstat -atn | grep -q :$port; do port=$(expr $port + 1); done; echo $port
+}
+
+GenPasswd(){
+	sed -i "/rpcuser=/ c \rpcuser=USER-"$(randgen 32)"" $config
+        sed -i "/rpcpassword=/ c \rpcpassword=PW-"$(randgen 64)"" $config
+        sed -i "/rpcport=/ c \rpcport="$(findRandomTcpPort)"" $config
+        print_green "Generated random user / password / port in:" " $config\n"
+}
+
+print_green() {
+        local prompt="${STRONG}$1${GREEN}$2${NORMAL}"
+        printf "${prompt}%s"
+}
+
+if grep -F "changeme" $config 1>/dev/null; then
+	GenPasswd
+fi
+
+exit 0