diff options
| -rwxr-xr-x | server.cgi | 34 |
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 |