infra/ansible/roles/profile_desktop_common/tasks/main.yml

---
- name: Configure elogind to suspend on lid close
  tags: [packages]
  ansible.builtin.lineinfile:
    path: /etc/elogind/logind.conf
    regexp: '^#?HandleLidSwitch='
    line: 'HandleLidSwitch=suspend'
    state: present

- name: Ensure common config directories exist
  tags: [dotfiles, dotfiles:desktop]
  ansible.builtin.file:
    path: "{{ item }}"
    state: directory
    owner: "{{ username }}"
    group: "{{ user_group }}"
    mode: "0755"
  loop:
    - "{{ user_home }}/.config"
    - "{{ user_home }}/.config/autostart"
    - "{{ user_home }}/.config/dunst"
    - "{{ user_home }}/.config/alacritty"
    - "{{ user_home }}/.config/Thunar"
    - "{{ user_home }}/.config/rofi"

- name: Ensure user local bin directory exists
  tags: [dotfiles, dotfiles:desktop, dotfiles:host]
  ansible.builtin.file:
    path: "{{ user_home }}/.local/bin"
    state: directory
    owner: "{{ username }}"
    group: "{{ user_group }}"
    mode: "0755"

- name: Enable gnome-keyring PAM auth hook
  tags: [packages, gnome]
  ansible.builtin.lineinfile:
    path: /etc/pam.d/login
    insertafter: '^auth\s+include\s+system-local-login$'
    line: "auth       optional  pam_gnome_keyring.so"
    state: present

- name: Enable gnome-keyring PAM session hook
  tags: [packages, gnome]
  ansible.builtin.lineinfile:
    path: /etc/pam.d/login
    insertafter: '^session\s+include\s+system-local-login$'
    line: "session    optional  pam_gnome_keyring.so auto_start"
    state: present

- name: Enable gnome-keyring PAM password hook
  tags: [packages, gnome]
  ansible.builtin.lineinfile:
    path: /etc/pam.d/login
    insertafter: '^password\s+include\s+system-local-login$'
    line: "password   optional  pam_gnome_keyring.so use_authtok"
    state: present

- name: Check whether SSH host ed25519 key exists
  tags: [services]
  ansible.builtin.stat:
    path: /etc/ssh/ssh_host_ed25519_key
  register: desktop_ssh_host_ed25519_key
  when:
    - (host_sshd_settings | default({})) | length > 0
      or (host_sshd_allow_users | default([])) | length > 0

- name: Generate missing SSH host keys on desktop host
  tags: [services]
  ansible.builtin.command: ssh-keygen -A
  changed_when: true
  when:
    - (host_sshd_settings | default({})) | length > 0
      or (host_sshd_allow_users | default([])) | length > 0
    - not desktop_ssh_host_ed25519_key.stat.exists

- name: Require authorized SSH keys before disabling password authentication on desktop host
  tags: [services]
  ansible.builtin.assert:
    that:
      - (host_authorized_ssh_keys | default([])) | length > 0
    fail_msg: >-
      SSH password authentication is disabled for this host, but no authorized SSH
      keys are defined. Set vault_ikaros_authorized_ssh_keys in secrets/vault.yml
      or secrets/vault.local.yml before applying this configuration.
  when:
    - "'sshd' in (host_enabled_services | default([]))"
    - (host_sshd_settings | default({})).PasswordAuthentication | default('yes') == 'no'

- name: Ensure desktop user SSH directory exists
  tags: [services, dotfiles]
  ansible.builtin.file:
    path: "{{ user_home }}/.ssh"
    state: directory
    owner: "{{ username }}"
    group: "{{ user_group }}"
    mode: "0700"
  when: (host_authorized_ssh_keys | default([])) | length > 0

- name: Ensure desktop user authorized_keys file exists
  tags: [services, dotfiles]
  ansible.builtin.file:
    path: "{{ user_home }}/.ssh/authorized_keys"
    state: touch
    owner: "{{ username }}"
    group: "{{ user_group }}"
    mode: "0600"
  when: (host_authorized_ssh_keys | default([])) | length > 0

- name: Manage desktop user authorized SSH keys exclusively
  tags: [services, dotfiles]
  ansible.posix.authorized_key:
    user: "{{ username }}"
    key: "{{ host_authorized_ssh_keys | join('\n') }}"
    state: present
    exclusive: true
    manage_dir: false
  when: (host_authorized_ssh_keys | default([])) | length > 0

- name: Apply SSH daemon settings on desktop host
  tags: [services]
  ansible.builtin.lineinfile:
    path: /etc/ssh/sshd_config
    regexp: '^\s*{{ item.key }}\s+'
    line: "{{ item.key }} {{ item.value }}"
    state: present
    validate: "sshd -t -f %s"
  notify: Reload SSH service
  loop: "{{ host_sshd_settings | default({}) | dict2items }}"
  loop_control:
    label: "{{ item.key }}"
  when: (host_sshd_settings | default({})) | length > 0

- name: Restrict SSH login to allowed desktop users
  tags: [services]
  ansible.builtin.lineinfile:
    path: /etc/ssh/sshd_config
    regexp: '^\s*AllowUsers\s+'
    line: "AllowUsers {{ host_sshd_allow_users | join(' ') }}"
    state: present
    validate: "sshd -t -f %s"
  notify: Reload SSH service
  when: (host_sshd_allow_users | default([])) | length > 0

- name: Apply host UFW rules on desktop
  tags: [services, packages]
  community.general.ufw:
    rule: "{{ item.rule }}"
    name: "{{ item.name | default(omit) }}"
    port: "{{ item.port | default(omit) }}"
    proto: "{{ item.proto | default(omit) }}"
  loop: "{{ host_ufw_rules | default([]) }}"
  loop_control:
    label: "{{ item.name | default(item.port) }}"

- name: Enable UFW firewall on desktop when host rules are defined
  tags: [services, packages]
  community.general.ufw:
    state: enabled
  when: (host_ufw_rules | default([])) | length > 0

- name: Check whether libvirt service directory exists
  tags: [packages, services]
  ansible.builtin.stat:
    path: /etc/sv/libvirtd
  register: libvirtd_service_dir

- name: Enable libvirt daemon service
  tags: [packages, services]
  ansible.builtin.file:
    src: /etc/sv/libvirtd
    dest: /var/service/libvirtd
    state: link
  when: libvirtd_service_dir.stat.exists

- name: Check virtualization group availability
  tags: [packages]
  ansible.builtin.getent:
    database: group
    key: "{{ item }}"
  loop:
    - kvm
    - libvirt
  loop_control:
    label: "{{ item }}"
  register: desktop_virtualization_group_state
  failed_when: false

- name: Add desktop user to virtualization groups
  tags: [packages]
  ansible.builtin.user:
    name: "{{ username }}"
    groups: "{{ item }}"
    append: true
  loop: >-
    {{
      desktop_virtualization_group_state.results
      | default([])
      | selectattr('failed', 'equalto', false)
      | selectattr('ansible_facts.getent_group', 'defined')
      | map(attribute='item')
      | list
    }}
  loop_control:
    label: "{{ item }}"

- name: Ensure emptty log directory exists
  tags: [packages, services, emptty]
  ansible.builtin.file:
    path: /var/log/emptty
    state: directory
    owner: root
    group: root
    mode: "0755"

- name: Ensure emptty session directories exist
  tags: [packages, services, emptty]
  ansible.builtin.file:
    path: "{{ item }}"
    state: directory
    owner: root
    group: root
    mode: "0755"
  loop:
    - /etc/emptty/xsessions
    - /etc/emptty/wayland-sessions

- name: Configure emptty
  tags: [packages, services, emptty]
  ansible.builtin.template:
    src: emptty-conf.j2
    dest: /etc/emptty/conf
    owner: root
    group: root
    mode: "0644"
  notify: Restart emptty

- name: Copy common desktop dotfiles
  tags: [dotfiles, dotfiles:desktop]
  ansible.builtin.copy:
    src: "{{ playbook_dir }}/../dotfiles/desktop/{{ item.src }}"
    dest: "{{ user_home }}/{{ item.dest }}"
    owner: "{{ username }}"
    group: "{{ user_group }}"
    mode: "{{ item.mode }}"
  loop: "{{ desktop_common_dotfiles | default([]) }}"
  loop_control:
    label: "{{ item.dest }}"

- name: Render desktop templates with private values
  tags: [dotfiles, dotfiles:desktop]
  ansible.builtin.template:
    src: "{{ item.src }}"
    dest: "{{ user_home }}/{{ item.dest }}"
    owner: "{{ username }}"
    group: "{{ user_group }}"
    mode: "{{ item.mode }}"
  loop:
    - src: desktop/.gitconfig.j2
      dest: .gitconfig
      mode: "0644"
    - src: desktop/.mbsyncrc.j2
      dest: .mbsyncrc
      mode: "0600"
    - src: desktop/.msmtprc.j2
      dest: .msmtprc
      mode: "0600"
    - src: desktop/email.el.j2
      dest: .emacs.d/lisp/misc/email.el
      mode: "0644"
    - src: desktop/gptel-private.el.j2
      dest: .emacs.d/lisp/misc/gptel-private.el
      mode: "0600"
  loop_control:
    label: "{{ item.dest }}"

- name: Refresh user font cache
  tags: [dotfiles, dotfiles:desktop]
  ansible.builtin.command: fc-cache -f
  become_user: "{{ username }}"
  environment:
    HOME: "{{ user_home }}"
  changed_when: false

- name: Ensure .gnupg directory exists
  tags: [dotfiles, dotfiles:desktop]
  ansible.builtin.file:
    path: "{{ user_home }}/.gnupg"
    state: directory
    owner: "{{ username }}"
    group: "{{ user_group }}"
    mode: "0700"

- name: Copy gpg-agent.conf
  tags: [dotfiles, dotfiles:desktop]
  ansible.builtin.copy:
    src: "{{ playbook_dir }}/../dotfiles/desktop/.gnupg/gpg-agent.conf"
    dest: "{{ user_home }}/.gnupg/gpg-agent.conf"
    owner: "{{ username }}"
    group: "{{ user_group }}"
    mode: "0600"

- name: Ensure local user directories exist
  tags: [dotfiles, dotfiles:desktop]
  ansible.builtin.file:
    path: "{{ item.path }}"
    state: directory
    owner: "{{ username }}"
    group: "{{ user_group }}"
    mode: "{{ item.mode }}"
  loop:
    - path: "{{ user_home }}/.local"
      mode: "0755"
    - path: "{{ user_home }}/.local/state"
      mode: "0755"
    - path: "{{ user_home }}/.local/state/ssh-agent"
      mode: "0700"
    - path: "{{ user_home }}/.local/share"
      mode: "0755"
    - path: "{{ user_home }}/.local/share/keyrings"
      mode: "0700"
    - path: "{{ user_home }}/.local/src"
      mode: "0755"

- name: Ensure maildir directories exist
  tags: [dotfiles, dotfiles:desktop]
  ansible.builtin.file:
    path: "{{ item }}"
    state: directory
    owner: "{{ username }}"
    group: "{{ user_group }}"
    mode: "0700"
  loop:
    - "{{ user_home }}/Maildir"
    - "{{ user_home }}/Maildir/iCloudAccount"
    - "{{ user_home }}/Maildir/ProtonMailAccount"

- name: Bootstrap iCloud keyring secret from Ansible vault
  tags: [dotfiles, dotfiles:desktop, gnome]
  when: desktop_manage_icloud_keyring | default(false)
  block:
    - name: Store iCloud mail password in GNOME Keyring
      ansible.builtin.getent:
        database: passwd
        key: "{{ username }}"

    - name: Set desktop user runtime UID
      ansible.builtin.set_fact:
        desktop_user_uid: "{{ ansible_facts.getent_passwd[username][1] }}"

    - name: Check whether desktop user DBus session address file exists
      ansible.builtin.stat:
        path: "{{ user_home }}/.dbus-session-bus-address"
      register: desktop_user_bus_address_file

    - name: Read desktop user DBus session address
      ansible.builtin.slurp:
        src: "{{ user_home }}/.dbus-session-bus-address"
      register: desktop_user_bus_address_raw
      when:
        - (vault_icloud_mail_password | default('')) | length > 0
        - desktop_user_bus_address_file.stat.exists

    - name: Set desktop user DBus session address
      ansible.builtin.set_fact:
        desktop_user_bus_address: >-
          {{ desktop_user_bus_address_raw.content | b64decode | trim }}
      when:
        - (vault_icloud_mail_password | default('')) | length > 0
        - desktop_user_bus_address_file.stat.exists

    - name: Check whether GNOME Keyring default collection is available
      ansible.builtin.command:
        cmd: >-
          gdbus call --session
          --dest org.freedesktop.secrets
          --object-path /org/freedesktop/secrets
          --method org.freedesktop.Secret.Service.ReadAlias default
      become: true
      become_user: "{{ username }}"
      environment:
        HOME: "{{ user_home }}"
        XDG_RUNTIME_DIR: "/run/user/{{ desktop_user_uid }}"
        DBUS_SESSION_BUS_ADDRESS: "{{ desktop_user_bus_address }}"
      register: icloud_keyring_default_alias
      failed_when: false
      changed_when: false
      when:
        - (vault_icloud_mail_password | default('')) | length > 0
        - desktop_user_bus_address | default('') | length > 0

    - name: Set GNOME Keyring default collection path
      ansible.builtin.set_fact:
        icloud_keyring_default_alias_path: >-
          {{
            (
              icloud_keyring_default_alias.stdout
              | default('')
              | regex_findall("objectpath '([^']+)'")
              | first
            )
            | default('')
          }}
      when:
        - (vault_icloud_mail_password | default('')) | length > 0
        - desktop_user_bus_address | default('') | length > 0
        - icloud_keyring_default_alias.rc | default(1) == 0

    - name: Store iCloud mail password in GNOME Keyring
      ansible.builtin.command:
        cmd: secret-tool store --label="iCloud Mail" icloud-mail icloud
        stdin: "{{ vault_icloud_mail_password }}"
        stdin_add_newline: false
      become: true
      become_user: "{{ username }}"
      environment:
        HOME: "{{ user_home }}"
        XDG_RUNTIME_DIR: "/run/user/{{ desktop_user_uid }}"
        DBUS_SESSION_BUS_ADDRESS: "{{ desktop_user_bus_address }}"
      register: icloud_keyring_store
      failed_when: false
      changed_when: icloud_keyring_store.rc == 0
      no_log: true
      when:
        - (vault_icloud_mail_password | default('')) | length > 0
        - desktop_user_bus_address | default('') | length > 0
        - icloud_keyring_default_alias.rc | default(1) == 0
        - (icloud_keyring_default_alias_path | default('')) | length > 0
        - (icloud_keyring_default_alias_path | default('')) != '/'

    - name: Warn when iCloud keyring storage is skipped
      ansible.builtin.debug:
        msg: >-
          Unable to store iCloud password in GNOME Keyring automatically.
          {% if (desktop_user_bus_address | default('')) | length == 0 %}
          No saved DBus session address was found in {{ user_home }}/.dbus-session-bus-address.
          {% elif icloud_keyring_default_alias.rc | default(1) != 0 %}
          The Secret Service default alias could not be queried for {{ username }}.
          {% elif (icloud_keyring_default_alias_path | default('')) == '/' %}
          The Secret Service default alias is unset, so the login keyring is not initialized.
          {% endif %}
          Ensure a graphical user session is active, the login keyring exists and is unlocked, then run:
          secret-tool store --label="iCloud Mail" icloud-mail icloud
      when:
        - (vault_icloud_mail_password | default('')) | length > 0
        - icloud_keyring_store.rc | default(1) != 0

- name: Clone st repository
  tags: [packages]
  ansible.builtin.git:
    repo: https://codeberg.org/fscotto/st
    dest: "{{ user_home }}/.local/src/st"
    update: true
  become_user: "{{ username }}"
  environment:
    HOME: "{{ user_home }}"
  register: st_repo

- name: Check whether st binary is installed
  tags: [packages]
  ansible.builtin.stat:
    path: /usr/local/bin/st
  register: st_binary

- name: Build and install st
  tags: [packages]
  ansible.builtin.command:
    cmd: make clean install
    chdir: "{{ user_home }}/.local/src/st"
  when: st_repo.changed or not st_binary.stat.exists

- name: Clean st build artifacts
  tags: [packages]
  ansible.builtin.command:
    cmd: make clean
    chdir: "{{ user_home }}/.local/src/st"
  when: st_repo.changed or not st_binary.stat.exists

- name: Ensure flathub remote is configured
  tags: [packages]
  community.general.flatpak_remote:
    name: "{{ desktop_flatpak_remote_name | default('flathub') }}"
    state: present
    flatpakrepo_url: "{{ desktop_flatpak_remote_url | default('https://dl.flathub.org/repo/flathub.flatpakrepo') }}"
  when: (desktop_flatpak_packages | default([])) | length > 0

- name: Install desktop flatpak applications
  tags: [packages]
  community.general.flatpak:
    name: "{{ desktop_flatpak_packages }}"
    state: present
    remote: "{{ desktop_flatpak_remote_name | default('flathub') }}"
    method: system
  when: (desktop_flatpak_packages | default([])) | length > 0

- name: Install Flatpak extensions
  tags: [packages]
  community.general.flatpak:
    name: "{{ item }}"
    state: present
    remote: "{{ desktop_flatpak_remote_name | default('flathub') }}"
    method: system
  loop: "{{ desktop_flatpak_extensions | default([]) }}"
  when:
    - (desktop_flatpak_packages | default([])) | length > 0
    - (desktop_flatpak_extensions | default([])) | length > 0
    - item | length > 0

- name: Set desktop external tool release metadata
  tags: [packages]
  ansible.builtin.set_fact:
    desktop_tools_tmp_dir: /tmp/desktop-tools
    ollama_asset: >-
      {{
        'ollama-linux-amd64.tar.zst' if ansible_facts['architecture'] == 'x86_64'
        else 'ollama-linux-arm64.tar.zst' if ansible_facts['architecture'] in ['aarch64', 'arm64']
        else ''
      }}
    gitmux_version: v0.11.5
    bw_version: 1.22.1
    opencode_asset_name: >-
      {{
        'opencode-linux-x64-baseline.tar.gz' if ansible_facts['architecture'] == 'x86_64'
        else 'opencode-linux-arm64.tar.gz' if ansible_facts['architecture'] in ['aarch64', 'arm64']
        else ''
      }}
    gitmux_arch: >-
      {{
        'amd64' if ansible_facts['architecture'] == 'x86_64'
        else 'arm64' if ansible_facts['architecture'] in ['aarch64', 'arm64']
        else ''
      }}

- name: Ensure architecture is supported for OpenCode binary
  tags: [packages]
  ansible.builtin.fail:
    msg: "Unsupported architecture {{ ansible_facts['architecture'] }} for OpenCode release binary"
  when: opencode_asset_name == ''

- name: Ensure architecture is supported for Ollama binary
  tags: [packages]
  ansible.builtin.fail:
    msg: "Unsupported architecture {{ ansible_facts['architecture'] }} for Ollama release binary"
  when: ollama_asset == ''

- name: Ensure architecture is supported for gitmux binary
  tags: [packages]
  ansible.builtin.fail:
    msg: "Unsupported architecture {{ ansible_facts['architecture'] }} for gitmux release binary"
  when: gitmux_arch == ''

- name: Ensure architecture is supported for bw binary
  tags: [packages]
  ansible.builtin.fail:
    msg: "Unsupported architecture {{ ansible_facts['architecture'] }} for bw release binary"
  when: ansible_facts['architecture'] != 'x86_64'

- name: Ensure temporary directory exists for external tools
  tags: [packages]
  ansible.builtin.file:
    path: "{{ desktop_tools_tmp_dir }}"
    state: directory
    mode: "0755"

- name: Fetch latest OpenCode release metadata
  tags: [packages]
  ansible.builtin.uri:
    url: https://api.github.com/repos/anomalyco/opencode/releases/latest
    headers:
      Accept: application/vnd.github+json
    return_content: true
  register: opencode_latest_release
  changed_when: false

- name: Set OpenCode release asset metadata
  tags: [packages]
  ansible.builtin.set_fact:
    opencode_version: "{{ opencode_latest_release.json.tag_name }}"
    opencode_asset: >-
      {{
        opencode_latest_release.json.assets
        | selectattr('name', 'equalto', opencode_asset_name)
        | first
        | default({})
      }}

- name: Ensure latest OpenCode asset metadata is available
  tags: [packages]
  ansible.builtin.fail:
    msg: "Could not find OpenCode asset {{ opencode_asset_name }} in release {{ opencode_version }}"
  when: opencode_asset == {}

- name: Download OpenCode release archive
  tags: [packages]
  ansible.builtin.get_url:
    url: "{{ opencode_asset.browser_download_url }}"
    dest: "{{ desktop_tools_tmp_dir }}/{{ opencode_asset.name }}"
    checksum: "{{ opencode_asset.digest | default(omit) }}"
    mode: "0644"

- name: Download Ollama release archive
  tags: [packages]
  ansible.builtin.get_url:
    url: "https://ollama.com/download/{{ ollama_asset }}"
    dest: "{{ desktop_tools_tmp_dir }}/{{ ollama_asset }}"
    mode: "0644"
  register: ollama_archive_download

- name: Check whether Ollama is already installed
  tags: [packages]
  ansible.builtin.stat:
    path: /usr/local/bin/ollama
  register: ollama_binary

- name: Extract OpenCode release archive
  tags: [packages]
  ansible.builtin.unarchive:
    src: "{{ desktop_tools_tmp_dir }}/{{ opencode_asset.name }}"
    dest: "{{ desktop_tools_tmp_dir }}"
    remote_src: true

- name: Install OpenCode binary
  tags: [packages]
  ansible.builtin.copy:
    src: "{{ desktop_tools_tmp_dir }}/opencode"
    dest: /usr/local/bin/opencode
    remote_src: true
    owner: root
    group: root
    mode: "0755"

- name: Remove previous Ollama libraries
  tags: [packages]
  ansible.builtin.file:
    path: /usr/local/lib/ollama
    state: absent
  when:
    - ollama_archive_download.changed or not ollama_binary.stat.exists

- name: Extract Ollama release archive into /usr/local
  tags: [packages]
  ansible.builtin.shell: >-
    zstd -d -c "{{ desktop_tools_tmp_dir }}/{{ ollama_asset }}" |
    tar -xf - -C /usr/local
  args:
    executable: /bin/sh
  changed_when: true
  when:
    - ollama_archive_download.changed or not ollama_binary.stat.exists

- name: Install Codex CLI globally
  tags: [packages]
  community.general.npm:
    name: "@openai/codex"
    global: true
    state: present

- name: Set gitmux asset metadata
  tags: [packages]
  ansible.builtin.set_fact:
    gitmux_asset: "gitmux_{{ gitmux_version }}_linux_{{ gitmux_arch }}.tar.gz"

- name: Download gitmux release archive
  tags: [packages]
  ansible.builtin.get_url:
    url: "https://github.com/arl/gitmux/releases/download/{{ gitmux_version }}/{{ gitmux_asset }}"
    dest: "{{ desktop_tools_tmp_dir }}/{{ gitmux_asset }}"
    checksum: "sha256:https://github.com/arl/gitmux/releases/download/{{ gitmux_version }}/checksums.txt"
    mode: "0644"

- name: Extract gitmux release archive
  tags: [packages]
  ansible.builtin.unarchive:
    src: "{{ desktop_tools_tmp_dir }}/{{ gitmux_asset }}"
    dest: "{{ desktop_tools_tmp_dir }}"
    remote_src: true

- name: Install gitmux binary
  tags: [packages]
  ansible.builtin.copy:
    src: "{{ desktop_tools_tmp_dir }}/gitmux"
    dest: /usr/local/bin/gitmux
    remote_src: true
    owner: root
    group: root
    mode: "0755"

- name: Set bw asset metadata
  tags: [packages]
  ansible.builtin.set_fact:
    bw_asset: "bw-linux-{{ bw_version }}.zip"

- name: Download bw release archive
  tags: [packages]
  ansible.builtin.get_url:
    url: "https://github.com/bitwarden/cli/releases/download/v{{ bw_version }}/{{ bw_asset }}"
    dest: "{{ desktop_tools_tmp_dir }}/{{ bw_asset }}"
    checksum: "sha256:https://github.com/bitwarden/cli/releases/download/v{{ bw_version }}/bw-linux-sha256-{{ bw_version }}.txt"
    mode: "0644"

- name: Extract bw release archive
  tags: [packages]
  ansible.builtin.unarchive:
    src: "{{ desktop_tools_tmp_dir }}/{{ bw_asset }}"
    dest: "{{ desktop_tools_tmp_dir }}"
    remote_src: true

- name: Install bw binary
  tags: [packages]
  ansible.builtin.copy:
    src: "{{ desktop_tools_tmp_dir }}/bw"
    dest: /usr/local/bin/bw
    remote_src: true
    owner: root
    group: root
    mode: "0755"