ansible-homelab/roles/debian-mail/tasks/main.yml

---
# tasks file for debian-mail

- name: Disable APT downloading language translations
  ansible.builtin.lineinfile:
    path: /etc/apt/apt.conf.d/99translations
    line: 'Acquire::Languages "none";'
    create: true

- name: Add Debian backports
  ansible.builtin.apt_repository:
    repo: deb http://deb.debian.org/debian bookworm-backports main
    state: present
    update_cache: true

- name: Install packages
  ansible.builtin.apt:
    name: "{{ packages }}"
    state: present

- name: Fetch bridge_pubkey.gpg
  ansible.builtin.get_url:
    url: https://proton.me/download/bridge/bridge_pubkey.gpg
    dest: /tmp/bridge_pubkey.gpg

- name: Sign bridge_pubkey.gpg
  ansible.builtin.shell:
    cmd: rm -f debsig.gpg && gpg --dearmor --output debsig.gpg bridge_pubkey.gpg
    chdir: /tmp

- name: Create keyring directory
  ansible.builtin.file:
    path: /usr/share/debsig/keyrings/E2C75D68E6234B07
    state: directory
    recurse: true

- name: Move debsig.gpg to keyring directory
  ansible.builtin.copy:
    src: /tmp/debsig.gpg
    dest: /usr/share/debsig/keyrings/E2C75D68E6234B07
    remote_src: true

- name: Create policy directory
  ansible.builtin.file:
    path: /etc/debsig/policies/E2C75D68E6234B07
    state: directory
    recurse: true

- name: Fetch and install the policy file
  ansible.builtin.get_url:
    url: https://proton.me/download/bridge/bridge.pol
    dest: /etc/debsig/policies/E2C75D68E6234B07//bridge.pol

- name: Fetch protonmail-bridge DEB package
  ansible.builtin.get_url:
    url: https://proton.me/download/bridge/protonmail-bridge_3.2.0-1_amd64.deb
    dest: /tmp/protonmail-bridge_3.2.0-1_amd64.deb

- name: Verify the signature on the protonmail-bridge package file
  ansible.builtin.shell:
    cmd: debsig-verify protonmail-bridge_3.2.0-1_amd64.deb
    chdir: /tmp
  register: debsig_output
  failed_when: '"Verified package" not in debsig_output.stdout or debsig_output.rc != 0'

- name: Install protonmail-bridge_3.2.0-1_amd64.deb
  ansible.builtin.apt:
    deb: /tmp/protonmail-bridge_3.2.0-1_amd64.deb

- name: Create user
  ansible.builtin.user:
    name: debian
    shell: /bin/bash

- name: Set sudo permissions for debian
  ansible.builtin.lineinfile:
    path: "/etc/sudoers.d/debian"
    line: "debian ALL=(ALL) NOPASSWD: ALL"
    create: true

- name: Copy systemd unit files for offlineimap
  ansible.builtin.copy:
    src: /usr/share/doc/offlineimap3/examples/systemd/offlineimap-oneshot.service
    dest: /etc/systemd/system/offlineimap-oneshot.service
    remote_src: true

- name: Change running user and group to debian for offlineimap-oneshot.service
  ansible.builtin.blockinfile:
    path: /etc/systemd/system/offlineimap-oneshot.service
    insertafter: "Type=oneshot"
    block: |
      User=debian
      Group=debian      

- name: Create offlineimap-oneshot.timer
  ansible.builtin.blockinfile:
    path: /etc/systemd/system/offlineimap-oneshot.timer
    create: true
    block: |
      [Unit]
      Description=Offlineimap Query Timer
      
      [Timer]
      OnCalendar=daily

      [Install]
      WantedBy=default.target      

- name: Create pm-bridge-tty.service
  ansible.builtin.blockinfile:
    path: /etc/systemd/system/pm-bridge-tty.service
    create: true
    block: |
      [Unit]
      Description=faketty service for protonmail-bridge
      
      [Service]
      Type=simple
      User=debian
      Group=debian
      ExecStart=/usr/local/bin/pm-bridge-tty

      [Install]
      WantedBy=multi-user.target      

- name: Copy offlineimaprc for debian
  ansible.builtin.copy:
    src: files/offlineimaprc
    dest: /home/debian/.offlineimaprc
    owner: debian
    group: debian

- name: Copy protonmail-bridge faketty script
  ansible.builtin.copy:
    src: files/pm-bridge-tty
    dest: /usr/local/bin/pm-bridge-tty
    owner: root
    group: root
    mode: u=rwx,g=rx,o=rx

- name: Enable offlineimap systemd timer
  ansible.builtin.systemd:
    name: offlineimap-oneshot.timer
    enabled: true

- name: Message to Ansible user
  ansible.builtin.debug:
    msg:
      - "Set passwd for debian"
      - "Run 'pm-bridge-tty init' to initialize the bridge."
      - "Login to Proton Mail with your user credentials."
      - "Wait for the sync to finish."
      - "Copy SMTP password and add it to /home/debian/.offlineimaprc"
      - "Run 'notmuch setup'"
      - "Run 'sudo systemctl enable --now pm-bridge-tty.service'"
      - "Run 'sudo systemctl start offlineimap-oneshot.service'"