a simple checkrequest function

1 files changed, 34 insertions, 0 deletions

diff --git a/server.cgi b/server.cgi
new file mode 100755
index 0000000..ecaf8e8
--- /dev/null
+++ b/server.cgi
@@ -0,0 +1,34 @@
+#!/bin/bash
+
+incomingData=''
+startPortRange=9000
+endPortRange=9010
+
+function readRequest() {
+# To avoid internal server error (500), minimum text to echo
+echo ''
+# Read the number of bytes(mentioned in CONTENT_LENGTH header) and
+# store the content in incomingData variable
+read -n $CONTENT_LENGTH incomingData
+# To view the content of the incoming data, try a test URL with POST using curl
+# curl --data "requestSshCredentials" http://localhost/server
+# This will send the data to server(to this cgi script) and based on availablity
+# of the ports it will allocate ssh credentials
+}
+
+function checkRequest() {
+if [ "$incomingData" == "requestSshCredentials" ];
+	then
+	firstAvailablePort=$(nmap -p $startPortRange-$endPortRange localhost \
+			    | grep -m 1 closed \
+			    | cut -d '/' -f 1)
+	if [ $(echo -n $firstAvailablePort | wc -m) == "0" ];
+		then
+		echo "No ports available, please try again!"
+	fi
+	echo $firstAvailablePort
+fi
+}
+
+readRequest
+checkRequest