I am trying to write a Python CGI script where user can enter Name(hostname) and Choose Memory from form and then via using paramiko module it will execute free -m command to the given node
import cgi import paramiko print "Content-type:text/html\r\n\r\n" print '<html>' print '<head><title>My First CGI Program</title></head>' print '<body>' print '<h1>Hello Program!</h1>' form = cgi.FieldStorage() if form.getvalue("name"): name = form.getvalue("name") if form.getvalue("memory"): ssh = paramiko.SSHClient() ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy()) ssh.connect(name, username='testuser', password='test12') stdin, stdout, stderr=ssh.exec_command("free -m") for line in stdout.readlines(): print line.strip() ssh.close() print '<form method="post" action="final.py">' print '<p>Name: <input type="text" name="name"/></p>' print '<input type="checkbox" name="memory" /> Memory' print '<input type="submit" value="Submit" />' print '</form>' print '</body>' print '</html>' It's not throwing error but at the same time it's not giving any output, Not sure What I am doing wrong
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Answers 1
form = cgi.FieldStorage() hostname = form.getvalue("name") or None if hostname and form.getvalue("memory"): ssh = paramiko.SSHClient() #ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy()) #This, of course, is not in the interest of the inventor and is infinitely unsafe, #so should only be used in tests in secure networks. #The correct way is to have Paramiko load the host keys, #so that it can check them as intended like: client.load_host_keys(os.path.expanduser('~/.ssh/known_hosts')) client.connect(hostname, username="testuser") stdin, stdout, stderr = client.exec_command('free -m') #for test print all std's for line in stdin, stdout, stderr: print line.strip('\n') client.close() 
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