iiab/roles/captiveportal/tasks/main.yml

- name: "Download & install packages: python3-dateutil, python3-jinja2"
  package:
    name: "{{ item }}"
    state: present
  with_items:
    - python3-dateutil
    - python3-jinja2

- name: Create directory /opt/iiab/captiveportal for scripts & templates; set owner to {{ apache_user }}
  file:
    path: /opt/iiab/captiveportal
    state: directory
    owner: "{{ apache_user }}"

- name: "Install 3 scripts from template: /opt/iiab/captiveportal/checkurls, /usr/sbin/iiab-make-cp-servers.py, /usr/sbin/iiab-divert-to-nginx"
  template:
    src: "{{ item.src }}"
    dest: "{{ item.dest }}"
    mode: "{{ item.mode }}"
  with_items:
    - { src: roles/captiveportal/templates/checkurls, dest: /opt/iiab/captiveportal/, mode: '0644' }
    - { src: roles/captiveportal/templates/iiab-make-cp-servers.py, dest: /usr/sbin/, mode: '0755' }
    - { src: roles/captiveportal/templates/iiab-divert-to-nginx, dest: /usr/sbin/, mode: '0755' }

- name: Install /opt/iiab/captiveportal/capture-wsgi.py from template (creates the server)
  template:
    src: capture-wsgi.py.j2
    #src: roles/captiveportal/templates/capture-wsgi.py.j2
    dest: /opt/iiab/captiveportal/
    mode: '0755'

- name: Copy files {simple.template, mac.template} into /opt/iiab/captiveportal/
  copy:
    src: "{{ item }}"
    dest: /opt/iiab/captiveportal/
  with_items:
    - simple.template
    #- roles/captiveportal/files/simple.template
    - mac.template
    #- roles/captiveportal/files/mac.template

- name: Install uWSGI config file /opt/iiab/captiveportal/captiveportal.ini from template
  template:
    src: captiveportal.ini.j2
    #src: roles/captiveportal/templates/captiveportal.ini.j2
    dest: /opt/iiab/captiveportal/captiveportal.ini

- name: Install /etc/systemd/system/uwsgi-captiveportal.service from template
  template:
    src: uwsgi-captiveportal.service
    #src: roles/captiveportal/templates/uwsgi-captiveportal.service
    dest: /etc/systemd/system/

- name: Start or restart server which responds to browsers trying to detect a captive portal
  systemd: 
    name: uwsgi-captiveportal.service
    state: restarted
    enabled: True
  when: captiveportal_enabled | bool

- name: Stop uWSGI server if Captive Portal has been disabled
  systemd: 
    name: uwsgi-captiveportal.service
    state: stopped
    enabled: False
  when: not captiveportal_enabled

- name: Run iiab-divert-to-nginx to generate diversion lists for NGINX
  shell: /usr/sbin/iiab-divert-to-nginx

- name: Run iiab-make-cp-servers.py to generate NGINX servers from checkurls input list (creates /etc/nginx/sites-available/capture.conf)
  command: /usr/sbin/iiab-make-cp-servers.py
  args:
    creates: /etc/nginx/sites-available/capture.conf
  
- name: Symlink /etc/nginx/sites-enabled/capture.conf -> /etc/nginx/sites-available/capture.conf, to enable NGINX to service the sites in checkurls list
  file:
    src: /etc/nginx/sites-available/capture.conf
    path: /etc/nginx/sites-enabled/capture.conf
    state: link
  when: captiveportal_enabled | bool

- name: Delete symlink /etc/nginx/sites-enabled/capture.conf, to disable NGINX to location definitions for checkurls
  file:
    #src: /etc/nginx/sites-available/capture.conf
    path: /etc/nginx/sites-enabled/capture.conf
    state: absent
  when: not captiveportal_enabled

- name: Make sure dnsmasq is not diverting if not captiveportal_enabled
  file:
    path: /etc/dnsmasq.d/capture
    state: absent
  when: not captiveportal_enabled

- name: "Add 'captiveportal_installed: True' to {{ iiab_state_file }}"
  lineinfile:
    dest: "{{ iiab_state_file }}"    # /etc/iiab/iiab_state.yml
    regexp: '^captiveportal_installed'
    line: 'captiveportal_installed: True'

#- name: Restart dnsmasq
#  systemd:
#    name: dnsmasq
#    state: restarted
#  when: dnsmasq_enabled | bool

# ABOVE DOES NOT WORK ON UBUNTU 16.04 -- what follows is a crude hack (seems to work!)

- name: Stop 'dnsmasq' systemd service
  systemd:
    name: dnsmasq
    state: stopped
  when: dnsmasq_enabled | bool

- name: Start 'dnsmasq' systemd service
  systemd:
    name: dnsmasq
    state: started
  when: dnsmasq_enabled | bool