我正在尝试编写一个 Python CGI 脚本，用户可以在其中输入名称(主机名)并从表单中选择内存，然后通过使用 paramiko 模块它将对给定节点执行 free -m 命令
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>'
它没有抛出错误，但同时也没有给出任何输出，不确定我做错了什么
最佳答案
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()
关于带有 paramiko 的 Python CGI，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/42407353/