---
# Common task for configuring redirector
# Shared across all providers

- name: Install required packages for redirector
  apt:
    name:
      - nginx
      - certbot
      - python3-certbot-nginx
      - socat
      - netcat-openbsd
      - secure-delete
    state: present
    update_cache: yes

- name: Create directories for operational scripts
  file:
    path: "{{ item }}"
    state: directory
    mode: '0700'
    owner: root
    group: root
  with_items:
    - /opt/c2
    - /opt/shell-handler

- name: Copy clean-logs.sh script
  copy:
    src: "clean-logs.sh"
    dest: /opt/c2/clean-logs.sh
    mode: '0700'
    owner: root
    group: root

- name: Copy shell handler script
  copy:
    src: "persistent-listener.sh"
    dest: /opt/shell-handler/persistent-listener.sh
    mode: '0700'
    owner: root
    group: root

- name: Configure shell handler script with C2 IP
  replace:
    path: /opt/shell-handler/persistent-listener.sh
    regexp: 'C2_HOST="127.0.0.1"'
    replace: 'C2_HOST="{{ c2_ip }}"'

- name: Configure shell handler script with listening port
  replace:
    path: /opt/shell-handler/persistent-listener.sh
    regexp: 'LISTEN_PORT=4444'
    replace: 'LISTEN_PORT={{ shell_handler_port }}'

- name: Create shell handler service
  template:
    src: "shell-handler.service.j2"
    dest: /etc/systemd/system/shell-handler.service
    mode: '0644'
    owner: root
    group: root

- name: Configure NGINX for zero-logging if enabled
  template:
    src: "nginx.conf.j2"
    dest: /etc/nginx/nginx.conf
    mode: '0644'
    owner: root
    group: root
  when: zero_logs | bool

- name: Configure NGINX for C2 redirection
  template:
    src: "redirector-site.conf.j2"
    dest: /etc/nginx/sites-available/default
    mode: '0644'
    owner: root
    group: root

- name: Create legitimate-looking index.html
  template:
    src: "redirector-index.html.j2"
    dest: /var/www/html/index.html
    mode: '0644'
    owner: www-data
    group: www-data

- name: Start and enable shell handler service
  systemd:
    name: shell-handler
    state: started
    enabled: yes
    daemon_reload: yes

- name: Set up cron job for log cleaning if zero-logs enabled
  cron:
    name: "Clean logs"
    minute: "0"
    hour: "*/6"
    job: "/opt/c2/clean-logs.sh > /dev/null 2>&1"
  when: zero_logs | bool

- name: Install Let's Encrypt certificate if domain specified
  shell: |
    certbot --nginx -d {{ redirector_subdomain }}.{{ domain }} --non-interactive --agree-tos -m {{ letsencrypt_email }}
  args:
    creates: /etc/letsencrypt/live/{{ redirector_subdomain }}.{{ domain }}/fullchain.pem
  when: domain != "example.com"

- name: Restart NGINX
  systemd:
    name: nginx
    state: restarted