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Initial working copy of the captive portal
This commit is contained in:
Anish Mangal
Jerry Vonau
parent
aeacbe60ca
commit
74fb19864f
5 changed files with 164 additions and 0 deletions
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@ -71,3 +71,10 @@ named_enabled: True
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dnsmasq_enabled: False
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dnsmasq_install: False
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captive_portal_enabled: False
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# for simple python captive portal
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py_captive_portal_install: True
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py_captive_portal_enabled: True
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captive_portal_port: "9090"
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captive_portal_username: "Admin"
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captive_portal_password: "g0adm1n"
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37
roles/network/tasks/captive_portal.yml
Normal file
37
roles/network/tasks/captive_portal.yml
Normal file
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@ -0,0 +1,37 @@
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- name: Create directory for captive portal script
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file: path=/opt/iiab/captive-portal state=directory
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when: py_captive_portal_install
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- name: Copy captive portal script
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template:
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src: roles/network/templates/captive_portal/captive_portal.py.j2
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dest: /opt/iiab/captive-portal/captive_portal.py
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owner: iiab-admin
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group: iiab-admin
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mode: 0740
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when: py_captive_portal_install
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- name: Copy captive portal service file
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template:
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src: roles/network/templates/captive_portal/captive_portal.service.j2
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dest: /etc/systemd/system/captive_portal.service
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owner: iiab-admin
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group: iiab-admin
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mode: 0644
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when: py_captive_portal_install
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- name: Enable captive_portal after copying files
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service: name=captive_portal.service enabled=yes
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when: py_captive_portal_install and py_captive_portal_enabled
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- name: Start captive_portal after copying files
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service: name=captive_portal.service state=started
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when: py_captive_portal_install and py_captive_portal_enabled
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- name: Disable captive_portal after copying files
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service: name=captive_portal.service enabled=no
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when: py_captive_portal_install and py_captive_portal_enabled
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- name: Stop captive_portal after copying files
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service: name=captive_portal.service state=started
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when: py_captive_portal_install and py_captive_portal_enabled
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@ -74,6 +74,14 @@
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include_tasks: squid.yml
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when: FQDN_changed and squid_install and iiab_stage|int == 9
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#- name: FOREFULLY ENABLE CAPTIVE PORTAL
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# set_fact:
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# py_captive_portal_install: True
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- name: (Re)Installing captive portal
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include_tasks: captive_portal.yml
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when: py_captive_portal_install
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#### start services
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- include_tasks: avahi.yml
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tags:
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97
roles/network/templates/captive_portal/captive_portal.py.j2
Executable file
97
roles/network/templates/captive_portal/captive_portal.py.j2
Executable file
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@ -0,0 +1,97 @@
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#!/usr/bin/python
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# Captive portal script adapted from https://github.com/nikosft/captive-portal
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import subprocess
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import BaseHTTPServer
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import cgi
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# These variables are used as settings
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PORT = int("{{ captive_portal_port }}") # the port in which the captive portal web server listens
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IFACE = "{{ iiab_lan_iface }}" # the interface that captive portal protects
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IP_ADDRESS = "172.18.96.1" # the ip address of the captive portal (it can be the IP of IFACE)
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'''
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This it the http server used by the the captive portal
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'''
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class CaptivePortal(BaseHTTPServer.BaseHTTPRequestHandler):
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#this is the index of the captive portal
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#it simply redirects the user to the to login page
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html_redirect = """
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<html>
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<head>
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<meta http-equiv="refresh" content="0; url=http://%s:%s/login" />
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</head>
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<body>
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<b>Redirecting to login page</b>
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</body>
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</html>
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"""%(IP_ADDRESS, PORT)
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#the login page
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html_login = """
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<html>
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<body>
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<b>Login Form</b>
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<form method="POST" action="do_login">
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Username: <input type="text" name="username"><br>
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Password: <input type="password" name="password"><br>
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<input type="submit" value="Submit">
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</form>
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</body>
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</html>
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"""
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'''
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if the user requests the login page show it, else
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use the redirect page
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'''
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def do_GET(self):
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path = self.path
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self.send_response(200)
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self.send_header("Content-type", "text/html")
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self.end_headers()
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if path == "/login":
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self.wfile.write(self.html_login)
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else:
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self.wfile.write(self.html_redirect)
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'''
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this is called when the user submits the login form
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'''
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def do_POST(self):
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self.send_response(200)
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self.send_header("Content-type", "text/html")
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self.end_headers()
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form = cgi.FieldStorage(
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fp=self.rfile,
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headers=self.headers,
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environ={'REQUEST_METHOD':'POST',
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'CONTENT_TYPE':self.headers['Content-Type'],
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})
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username = form.getvalue("username")
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password = form.getvalue("password")
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#dummy security check
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if username == '{{ captive_portal_username }}' and password == '{{ captive_portal_password }}':
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#authorized user
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remote_IP = self.client_address[0]
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print 'New authorization from '+ remote_IP
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print 'Updating IP tables'
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subprocess.call(["iptables","-t", "nat", "-I", "PREROUTING","1", "-s", remote_IP, "-j" ,"ACCEPT"])
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subprocess.call(["iptables", "-I", "FORWARD", "-s", remote_IP, "-j" ,"ACCEPT"])
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self.wfile.write("You are now authorized. Navigate to any URL")
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else:
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#show the login form
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self.wfile.write(self.html_login)
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#the following function makes server produce no output
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#comment it out if you want to print diagnostic messages
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#def log_message(self, format, *args):
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# return
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print "Starting captive portal web server"
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httpd = BaseHTTPServer.HTTPServer(('', PORT), CaptivePortal)
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try:
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httpd.serve_forever()
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except KeyboardInterrupt:
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pass
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httpd.server_close()
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@ -0,0 +1,15 @@
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[Unit]
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Description=Captive portal
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After=syslog.target
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[Service]
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Type=simple
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User=iiab-admin
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Group=iiab-admin
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WorkingDirectory=/opt/iiab/captive-portal
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ExecStart=/opt/iiab/captive-portal/captive_portal.py
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StandardOutput=syslog
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StandardError=syslog
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[Install]
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WantedBy=multi-user.target
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