Marc S. Weidner
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Signed-off-by: Marc S. Weidner <msw@coresecret.dev>
1229 lines
39 KiB
Bash
1229 lines
39 KiB
Bash
#!/bin/bash
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# SPDX-Version: 3.0
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# SPDX-CreationInfo: 2025-06-17; WEIDNER, Marc S.; <msw@coresecret.dev>
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# SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.installer.git
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# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
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# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
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# SPDX-FileType: SOURCE
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# SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
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# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
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# SPDX-PackageName: CISS.debian.installer
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# SPDX-Security-Contact: security@coresecret.eu
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guard_sourcing
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# TODO: sudo TOTP deactivation
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# TODO: PAM Module
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# TODO: Check Password activation
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# TODO: Check expiration and other dates
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# TODO: Logic
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#######################################
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# Updating user accounts.
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# Globals:
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# TARGET
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# VAR_SETUP_PATH
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# VAR_TEMP_PLAIN_MFA_SEED
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# VAR_USER_MAX
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# user_root_authentication_2fa_ssh
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# user_root_authentication_2fa_tty
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# user_root_authentication_access_ssh
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# user_root_authentication_access_tty
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# user_root_authentication_password
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# user_root_shell
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# user_root_specific
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# user_root_sshpubkey
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# Arguments:
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# None
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# Returns:
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# 0: on success
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# ERR_ACCOUNT_CREATE: on failure
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#######################################
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accounts_setup() {
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### Declare Arrays, HashMaps, and Variables.
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declare -r var_logfile="/root/.ciss/cdi/log/4520_accounts_setup.log"
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declare -i i=0
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declare tmp_username="" tmp_fullname="" tmp_uid="" tmp_gid="" tmp_shell="" tmp_password="" tmp_sshpubkey="" \
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tmp_access_tty="" tmp_auth_pwd="" tmp_2fa_ssh="" tmp_2fa_tty="" tmp_sudo="" tmp_restricted="" tmp_system="" \
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tmp_specific=""
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declare var_username="" var_fullname="" var_uid="" var_gid="" var_shell="" var_password="" var_sshpubkey="" \
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var_access_tty="" var_auth_pwd="" var_2fa_ssh="" var_2fa_tty="" var_sudo="" var_restricted="" var_system="" \
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var_specific=""
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declare var_ssh_totp_update="false"
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chroot_logger "${TARGET}${var_logfile}"
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### Prepare the '2fa'-seed variable.
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read_totp_seed
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do_log "debug" "file_only" "4520() Command: [read_totp_seed]"
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### 0) The 'root' account is generated via debootstrap by default.
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### 1) Prepare the 'root' account.
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install -d -m 0700 -o root -g root "${TARGET}/root/.ssh"
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install -m 0600 -o root -g root /dev/null "${TARGET}/root/.ssh/authorized_keys"
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install -m 0600 -o root -g root "${VAR_SETUP_PATH}/includes/target/etc/skel/.bashrc" "${TARGET}/root/"
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install -m 0600 -o root -g root "${VAR_SETUP_PATH}/includes/target/etc/skel/.ciss/theme_eza_ciss.yml" "${TARGET}/root/.ciss/"
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if [[ "${user_root_shell}" == "/bin/zsh" ]]; then
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if [[ -x "${TARGET}${user_root_shell}" ]]; then
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case "${user_root_specific,,}" in
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"ciss")
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zsh_omz_installer "root"
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mv "${TARGET}/root/.zshrc" "${TARGET}/root/.zshrc.bak"
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install -m 0600 -o root -g root "${VAR_SETUP_PATH}/includes/target/etc/skel/.zshrc" "${TARGET}/root/"
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;;
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"physnet")
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:
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;;
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"none"|*)
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:
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;;
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esac
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chroot_exec "${TARGET}" chsh -s "${user_root_shell}" root
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do_log "info" "file_only" "4520() Shell: '${user_root_shell}' used for: 'root'."
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else
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chroot_exec "${TARGET}" chsh -s /bin/bash root
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do_log "info" "file_only" "4520() Shell: '${user_root_shell}' not found for: 'root'. Using '/bin/bash' instead."
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fi
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fi
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install -m 0600 -o root -g root "${VAR_SETUP_PATH}/includes/target/root/.ciss/alias" "${TARGET}/root/.ciss/"
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install -m 0700 -o root -g root "${VAR_SETUP_PATH}/includes/target/root/.ciss/clean_logout.sh" "${TARGET}/root/.ciss/"
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install -m 0600 -o root -g root "${VAR_SETUP_PATH}/includes/target/root/.ciss/shortcuts" "${TARGET}/root/.ciss/"
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### To be able to copy/paste from vim, one needs to create a '.vimrc' with the following content:
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echo 'set clipboard=unnamed' >| "${TARGET}/root/.vimrc"
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chmod 0600 "${TARGET}/root/.vimrc"
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do_log "info" "file_only" "4520() Skeleton: 'root' successfully generated."
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### 2) Check SSH access capabilities.
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case "${user_root_authentication_access_ssh,,}" in
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false)
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sed -i -E "s|^[[:space:]]*PermitRootLogin[[:space:]]+.*$|$(printf '%-29s%s' 'PermitRootLogin' 'no')|" "${TARGET}/etc/ssh/sshd_config"
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do_log "info" "file_only" "4520() User: 'root' SSH access: [PermitRootLogin no]"
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;;
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true)
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sed -i -E "s|^[[:space:]]*PermitRootLogin[[:space:]]+.*$|$(printf '%-29s%s' 'PermitRootLogin' 'prohibit-password')|" "${TARGET}/etc/ssh/sshd_config"
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do_log "info" "file_only" "4520() User: 'root' SSH access: [PermitRootLogin prohibit-password]"
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;;
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*)
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do_log "fatal" "file_only" "4520() Not set: user_root_authentication_access_ssh [${user_root_authentication_access_ssh}]"
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return "${ERR_ACCOUNT_CREATE}"
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;;
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esac
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### 3) Check tty access capabilities.
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case "${user_root_authentication_access_tty,,}" in
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false)
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### 3) A) 1) Ensure the 'pam_access' line is not activated in '/etc/pam.d/login' and '/etc/pam.d/sshd' in parallel.
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pam_access_sync_login_sshd
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### 3) A) 2) Ensure 'pam_securetty' in the auth phase; requisite causes immediate fail for disallowed ttys.
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chroot_stdin "${TARGET}" "__payload__" <<'EOF'
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export LC_ALL=C
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if ! grep -Eq '^[[:space:]]*auth[[:space:]]+requisite[[:space:]]+pam_securetty[.]so([[:space:]]|$)' /etc/pam.d/login; then
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tmp="$(mktemp /etc/pam.d/login.XXXXXX)"
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awk '
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BEGIN { ins=0 }
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{
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if (!ins && $0 ~ /^[[:space:]]*auth[[:space:]]+.*pam_unix[.]so/) {
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print "auth requisite pam_securetty.so"
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ins=1
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}
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print
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}
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END {
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if (!ins) print "auth requisite pam_securetty.so"
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}
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' /etc/pam.d/login >| "${tmp}"
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test -s "${tmp}"
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mv -f "${tmp}" /etc/pam.d/login
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rm -f -- "${tmp}"
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fi
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:
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EOF
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### 3) A) 3) Disallow all local access for root in '/etc/security/access.conf'.
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printf -- '-: root:ALL\n' >> "${TARGET}/etc/security/access.conf"
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### 3) A) 4) Empty "/etc/securetty".
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cat << 'EOF' >| "${TARGET}/etc/securetty"
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EOF
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do_log "info" "file_only" "4520() User: 'root' tty access: [false]"
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;;
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true)
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### 3) B) 1) Allow local access for 'root' only on 'tty1' in '/etc/security/access.conf'.
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printf -- "+: root:tty1 \n" >> "${TARGET}/etc/security/access.conf"
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### 3) B) 2) Allow local access for 'root' only on 'tty1' in '/etc/securetty'.
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cat << 'EOF' >| "${TARGET}/etc/securetty"
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tty1
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EOF
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do_log "info" "file_only" "4520() User: 'root' tty access: [true]"
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;;
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*)
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do_log "fatal" "file_only" "4520() Not set: user_root_authentication_access_tty [${user_root_authentication_access_tty}]"
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return "${ERR_ACCOUNT_CREATE}"
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;;
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esac
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### 4) Check the password policy for the 'root' account.
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case "${user_root_authentication_password,,}" in
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false)
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chroot_script "${TARGET}" "passwd -l root"
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do_log "info" "file_only" "4520() User: 'root' password access: [false]"
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;;
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true)
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chroot_script "${TARGET}" "printf '%s:%s\n' root '${var_password}' | /usr/sbin/chpasswd -e"
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#chroot_script "${TARGET}" "/usr/sbin/usermod -p '${user_root_password}' root"
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do_log "info" "file_only" "4520() User: 'root' password access: [true]"
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;;
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*)
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do_log "fatal" "file_only" "4520() Not set: user_root_authentication_password [${user_root_authentication_password}]"
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return "${ERR_ACCOUNT_CREATE}"
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;;
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esac
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### 5) Update the 'root' SSH pubkey, if provided via 'preseed.yaml'.
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if [[ -n "${user_root_sshpubkey:-}" ]]; then
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printf "%s\n" "${user_root_sshpubkey}" >| "${TARGET}/root/.ssh/authorized_keys"
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do_log "info" "file_only" "4520() User: 'root' SSH public key: inserted."
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fi
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### 6) Update the 'root' 'totp'-policy and write the '.google_authenticator'-file.
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if [[ "${user_root_authentication_2fa_ssh}" == "true" || "${user_root_authentication_2fa_tty}" == "true" ]]; then
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write_google_authenticator_file "root" "0" "0"
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fi
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if [[ "${user_root_authentication_2fa_ssh}" == "true" ]]; then
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pam_access_totp_enable "root" "sshd"
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var_ssh_totp_update="true"
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cat << EOF >> "${TARGET}/etc/ssh/sshd_config"
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Match User root
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AuthenticationMethods publickey,keyboard-interactive:pam
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EOF
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fi
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[[ "${user_root_authentication_2fa_tty}" == "true" ]] && pam_access_totp_enable "root" "login"
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### 7) Install eza themes.
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eza_installer "root"
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### 8) Double check permissions.
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### Directories: 0700
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find "${TARGET}/root" -type d -exec chmod 0700 {} +
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### Executable files: 0700 (any x-bit set)
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find "${TARGET}/root" -type f -perm /111 -exec chmod 0700 {} +
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### Non-executable files: 0600
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find "${TARGET}/root" -type f ! -perm /111 -exec chmod 0600 {} +
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### Ownership: UID:GID (do not dereference symlinks; stay on this filesystem)
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find "${TARGET}/root" -xdev -exec chown -h root:root {} +
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### 9) Final status logging.
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do_log "info" "file_only" "4520() User: 'root' updated."
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### Iterate through all remaining 'user' accounts and install them.
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for ((i = 0; i <= VAR_USER_MAX; i++)); do
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### Prepare all user-variables.
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tmp_username="user_user${i}_name"
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tmp_fullname="user_user${i}_fullname"
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tmp_uid="user_user${i}_uid"
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tmp_gid="user_user${i}_gid"
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tmp_shell="user_user${i}_shell"
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tmp_password="user_user${i}_password"
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tmp_sshpubkey="user_user${i}_sshpubkey"
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tmp_access_tty="user_user${i}_authentication_access_tty"
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tmp_auth_pwd="user_user${i}_authentication_password"
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tmp_2fa_ssh="user_user${i}_authentication_2fa_ssh"
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tmp_2fa_tty="user_user${i}_authentication_2fa_tty"
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tmp_sudo="user_user${i}_privileges_sudo"
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tmp_system="user_user${i}_privileges_system"
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tmp_restricted="user_user${i}_privileges_restricted"
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tmp_specific="user_user${i}_specific"
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var_username="${!tmp_username}"
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var_fullname="${!tmp_fullname}"
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var_uid="${!tmp_uid}"
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var_gid="${!tmp_gid}"
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var_shell="${!tmp_shell}"
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var_password="${!tmp_password}"
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var_sshpubkey="${!tmp_sshpubkey}"
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var_access_tty="${!tmp_access_tty}"
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var_auth_pwd="${!tmp_auth_pwd}"
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var_2fa_ssh="${!tmp_2fa_ssh}"
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var_2fa_tty="${!tmp_2fa_tty}"
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var_sudo="${!tmp_sudo}"
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var_system="${!tmp_system}"
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var_restricted="${!tmp_restricted}"
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var_specific="${!tmp_specific}"
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### 0) A) Check if the 'group' of the 'user' already exists.
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if ! chroot_exec "${TARGET}" getent group "${var_username}" >/dev/null; then
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chroot_exec "${TARGET}" groupadd --gid "${var_gid}" "${var_username}"
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fi
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### 0) B) Generates the user account.
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### If the 'user' is not restricted in scope, then generate the account accordingly, with a predefined expiry date.
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### If the 'user' is a system user, then generate with flag '--system'.
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case "${var_restricted}":"${var_system}" in
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false:false)
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chroot_exec "${TARGET}" useradd \
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--comment "${var_fullname}" \
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--create-home \
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--expiredate 2102-12-31 \
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--gid "${var_gid}" \
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--home-dir /home/"${var_username}" \
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--inactive 0 \
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--shell "${var_shell}" \
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--uid "${var_uid}" \
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"${var_username}"
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eza_installer "${var_username}"
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;;
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true:false)
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chroot_exec "${TARGET}" useradd \
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--comment "${var_fullname}" \
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--expiredate 2102-12-31 \
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--gid "${var_gid}" \
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--inactive 0 \
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--no-create-home \
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--shell "${var_shell}" \
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--uid "${var_uid}" \
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"${var_username}"
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;;
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false:true)
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chroot_exec "${TARGET}" useradd \
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--comment "${var_fullname}" \
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--create-home \
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--expiredate 2102-12-31 \
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--gid "${var_gid}" \
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--home-dir /home/"${var_username}" \
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--inactive 0 \
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--shell "${var_shell}" \
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--system \
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--uid "${var_uid}" \
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"${var_username}"
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;;
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true:true)
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chroot_exec "${TARGET}" useradd \
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--comment "${var_fullname}" \
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--expiredate 2102-12-31 \
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--gid "${var_gid}" \
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--inactive 0 \
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--no-create-home \
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--shell "${var_shell}" \
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--system \
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--uid "${var_uid}" \
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"${var_username}"
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;;
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*)
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do_log "fatal" "file_only" "4520() Not set: var_restricted:var_system [${var_restricted}:${var_system}]"
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return "${ERR_ACCOUNT_CREATE}"
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;;
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esac
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### 1) Prepare the 'user' account.
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install -d -m 0700 -o "${var_uid}" -g "${var_gid}" "${TARGET}/home/${var_username}/.ssh"
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install -m 0600 -o "${var_uid}" -g "${var_gid}" /dev/null "${TARGET}/home/${var_username}/.ssh/authorized_keys"
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install -m 0600 -o "${var_uid}" -g "${var_gid}" "${VAR_SETUP_PATH}/includes/target/etc/skel/.bashrc" "${TARGET}/home/${var_username}/"
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if [[ "${var_shell}" == "/bin/zsh" ]]; then
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if [[ -x "${TARGET}${var_shell}" ]]; then
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case "${var_specific,,}" in
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"ciss")
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zsh_omz_installer "${var_username}"
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mv "${TARGET}/home/${var_username}/.zshrc" "${TARGET}/home/${var_username}/.zshrc.bak"
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install -m 0600 -o "${var_uid}" -g "${var_gid}" "${VAR_SETUP_PATH}/includes/target/etc/skel/.zshrc" "${TARGET}/home/${var_username}"
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;;
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"physnet")
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:
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;;
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"none"|*)
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:
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;;
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esac
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chroot_exec "${TARGET}" chsh -s "${var_shell}" "${var_username}"
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do_log "info" "file_only" "4520() Shell: '${var_shell}' used for: '${var_username}'."
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else
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chroot_exec "${TARGET}" chsh -s /bin/bash "${var_username}"
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do_log "info" "file_only" "4520() Shell: '${var_shell}' not found for: '${var_username}'. Using '/bin/bash' instead."
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fi
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fi
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do_log "info" "file_only" "4520() Skeleton: '${var_username}' successfully generated."
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### 2) Check SSH access capabilities.
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### Nothing to do here as per-user SSH capabilities are already handled in '4330_installation_ssh.sh'.
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### 3) Check tty access capabilities.
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case "${var_access_tty,,}" in
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false)
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### 3) A) 1) Ensure the 'pam_access' line is not activated in '/etc/pam.d/login' and '/etc/pam.d/sshd' in parallel.
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pam_access_sync_login_sshd
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### 3) A) 2) This step is not required for user accounts.
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### 3) A) 3) Disallow all local access for user in '/etc/security/access.conf'.
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printf '%s\n' "-: ${var_username}:ALL" >> "${TARGET}/etc/security/access.conf"
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### 3) A) 4) This step is not required for user accounts.
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do_log "info" "file_only" "4520() User: '${var_username}' tty access: [false]"
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;;
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true)
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### 3) B) 1) Allow local access for 'user' only on 'tty1' in '/etc/security/access.conf'.
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printf '%s\n' "+: ${var_username}:tty1" >> "${TARGET}/etc/security/access.conf"
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### 3) B) 2) This step is not required for user accounts.
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do_log "info" "file_only" "4520() User: '${var_username}' tty access: [true]"
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;;
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*)
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do_log "fatal" "file_only" "4520() Not set: var_access_tty [${var_access_tty}]"
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return "${ERR_ACCOUNT_CREATE}"
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;;
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esac
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### 4) Check the password policy for the 'user' account.
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case "${var_auth_pwd}" in
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false)
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chroot_script "${TARGET}" "passwd -l ${var_username}"
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do_log "info" "file_only" "4520() User: '${var_username}' password access: [false]"
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|
;;
|
|
|
|
true)
|
|
chroot_script "${TARGET}" "printf '%s:%s\n' \"${var_username}\" '${var_password}' | /usr/sbin/chpasswd -e"
|
|
#chroot_script "${TARGET}" "/usr/sbin/usermod -p '${var_password}' ${var_username}"
|
|
do_log "info" "file_only" "4520() User: '${var_username}' password access: [true]"
|
|
;;
|
|
|
|
*)
|
|
do_log "fatal" "file_only" "4520() Not set: var_auth_pwd [${var_auth_pwd}]"
|
|
return "${ERR_ACCOUNT_CREATE}"
|
|
;;
|
|
|
|
esac
|
|
|
|
### 5) Update the 'user' SSH pubkey, if provided via 'preseed.yaml'.
|
|
if [[ -n "${var_sshpubkey:-}" ]]; then
|
|
|
|
printf "%s\n" "${var_sshpubkey}" >| "${TARGET}/home/${var_username}/.ssh/authorized_keys"
|
|
do_log "info" "file_only" "4520() User: '${var_username}' SSH public key: inserted."
|
|
|
|
fi
|
|
|
|
### 6) Update the 'root' 'totp'-policy and write the '.google_authenticator'-file.
|
|
if [[ "${var_2fa_ssh}" == "true" || "${var_2fa_tty}" == "true" ]]; then
|
|
|
|
write_google_authenticator_file "${var_username}" "${var_uid}" "${var_gid}"
|
|
|
|
fi
|
|
|
|
if [[ "${var_2fa_ssh}" == "true" ]]; then
|
|
|
|
pam_access_totp_enable "${var_username}" "sshd"
|
|
var_ssh_totp_update="true"
|
|
cat << EOF >> "${TARGET}/etc/ssh/sshd_config"
|
|
Match User ${var_username}
|
|
AuthenticationMethods publickey,keyboard-interactive:pam
|
|
|
|
EOF
|
|
fi
|
|
|
|
[[ "${var_2fa_tty}" == "true" ]] && pam_access_totp_enable "${var_username}" "login"
|
|
|
|
### 7) Check sudo membership for user.
|
|
if [[ "${var_sudo}" == "true" ]]; then
|
|
|
|
chroot_exec "${TARGET}" usermod -aG sudo "${var_username}"
|
|
### Hardening sudo users (idempotent) and ensure WinSCP SFTP-as-root.
|
|
hardening_sudo "${var_username}" "${var_specific:-none}"
|
|
### Enable per-user TOTP in a given PAM service (login, sshd, su, sudo).
|
|
pam_access_totp_enable "${var_username}" "sudo"
|
|
|
|
fi
|
|
|
|
### 8) Double check permissions.
|
|
### Directories: 0700
|
|
find "${TARGET}/home/${var_username}" -type d -exec chmod 0700 {} +
|
|
### Executable files: 0700 (any x-bit set)
|
|
find "${TARGET}/home/${var_username}" -type f -perm /111 -exec chmod 0700 {} +
|
|
### Non-executable files: 0600
|
|
find "${TARGET}/home/${var_username}" -type f ! -perm /111 -exec chmod 0600 {} +
|
|
### Ownership: UID:GID (do not dereference symlinks; stay on this filesystem)
|
|
find "${TARGET}/home/${var_username}" -xdev -exec chown -h "${var_uid}:${var_gid}" {} +
|
|
|
|
### 9) Final status logging.
|
|
do_log "info" "file_only" "4520() Created user: [${var_username}] UID: [${var_uid}] GID: [${var_gid}]"
|
|
|
|
done
|
|
|
|
if [[ "${var_ssh_totp_update}" == "true" ]]; then
|
|
|
|
sed -i -E "s|^[[:space:]]*KbdInteractiveAuthentication[[:space:]]+.*$|$(printf '%-29s%s' 'KbdInteractiveAuthentication' 'yes')|" "${TARGET}/etc/ssh/sshd_config"
|
|
|
|
fi
|
|
|
|
unset VAR_TEMP_PLAIN_MFA_SEED
|
|
|
|
if ! grep -Fqx -- '-: ALL:ALL' "${TARGET}/etc/security/access.conf"; then
|
|
|
|
printf '%s\n' '-: ALL:ALL' >> "${TARGET}/etc/security/access.conf"
|
|
|
|
fi
|
|
|
|
printf "# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=conf \n" >> "${TARGET}/etc/security/access.conf"
|
|
printf "# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=conf \n" >> "${TARGET}/etc/ssh/sshd_config"
|
|
|
|
### Hardening of '/bin/su': only members of the group 'sudo' can su to root.
|
|
hardening_su
|
|
|
|
guard_dir && return 0
|
|
}
|
|
### Prevents accidental 'unset -f'.
|
|
# shellcheck disable=SC2034
|
|
readonly -f accounts_setup
|
|
|
|
#######################################
|
|
# Install eza CISS theme for the respective user.
|
|
# Globals:
|
|
# TARGET
|
|
# Arguments:
|
|
# 1: Username
|
|
# Returns:
|
|
# 0: on success
|
|
#######################################
|
|
eza_installer() {
|
|
### Declare Arrays, HashMaps, and Variables.
|
|
declare var_user="${1}"
|
|
case "${1}" in
|
|
root) declare var_base="/root" ;;
|
|
*) declare var_base="/home/${var_user}" ;;
|
|
esac
|
|
|
|
chroot_script "${TARGET}" "
|
|
cd ${var_base}
|
|
git clone https://github.com/eza-community/eza-themes.git
|
|
mkdir -p ${var_base}/.config/eza
|
|
ln -sf ${var_base}/.ciss/theme_eza_ciss.yml ${var_base}/.config/eza/theme.yml
|
|
"
|
|
|
|
return 0
|
|
}
|
|
### Prevents accidental 'unset -f'.
|
|
# shellcheck disable=SC2034
|
|
readonly -f eza_installer
|
|
|
|
#######################################
|
|
# Generates a deterministic TOTP secret based on:
|
|
# Username, FQDN, MFA salt, MFA master seed
|
|
# Globals:
|
|
# VAR_FINAL_FQDN
|
|
# VAR_TEMP_PLAIN_MFA_SEED
|
|
# user_mfa_info
|
|
# user_mfa_salt
|
|
# Arguments:
|
|
# 1: Username
|
|
# Returns:
|
|
# 0: on success
|
|
#######################################
|
|
generate_totp_secret() {
|
|
### Declare Arrays, HashMaps, and Variables.
|
|
declare var_user="${1}"
|
|
declare var_host_id="${VAR_FINAL_FQDN}"
|
|
declare var_salt="${user_mfa_salt}:${var_host_id}:${var_user}"
|
|
declare var_info="${user_mfa_info}"
|
|
declare var_secret=""
|
|
|
|
guard_trace on
|
|
|
|
### Derive 20 bytes via HKDF-SHA256 using OpenSSL 3 kdf, output as raw, then base32 (uppercase, no padding).
|
|
### NOTE: 'key' must be provided via '-kdfopt key:hex:<STRING>'; expects a hexstring (no spaces).
|
|
# shellcheck disable=SC2312
|
|
var_secret="$(
|
|
openssl kdf -keylen 20 \
|
|
-kdfopt digest:SHA256 \
|
|
-kdfopt key:hex:"${VAR_TEMP_PLAIN_MFA_SEED}" \
|
|
-kdfopt salt:"${var_salt}" \
|
|
-kdfopt info:"${var_info}" \
|
|
-binary HKDF \
|
|
| base32 \
|
|
| tr -d '=' \
|
|
| tr '[:lower:]' '[:upper:]'
|
|
)"
|
|
|
|
printf '%s\n' "${var_secret}"
|
|
|
|
guard_trace off
|
|
|
|
return 0
|
|
}
|
|
### Prevents accidental 'unset -f'.
|
|
# shellcheck disable=SC2034
|
|
readonly -f generate_totp_secret
|
|
|
|
#######################################
|
|
# Hardening of '/bin/su': only members of the group 'sudo' can su to root.
|
|
# Globals:
|
|
# None
|
|
# Arguments:
|
|
# None
|
|
# Returns:
|
|
# 0: on success
|
|
#######################################
|
|
hardening_su() {
|
|
### Declare Arrays, HashMaps, and Variables.
|
|
declare -r pam_su="/etc/pam.d/su"
|
|
|
|
[[ -f "${TARGET}${pam_su}" ]] || return 0
|
|
|
|
chroot_stdin "${TARGET}" "__payload__" -- "${pam_su}" <<'EOF'
|
|
export LC_ALL=C
|
|
pam="$1"
|
|
|
|
if grep -Eq '^[[:space:]]*auth[[:space:]]+required[[:space:]]+pam_wheel[.]so([[:space:]].*)?group=sudo([[:space:]].*)?use_uid' "${pam}"; then
|
|
:
|
|
else
|
|
tmp="$(mktemp "${pam}.XXXXXX")"
|
|
### 1) Insert rule before pam_unix.so or pam_rootok.so (fail early). Fallback: append.
|
|
awk '
|
|
BEGIN { ins=0 }
|
|
{
|
|
if (!ins && $0 ~ /^[[:space:]]*auth[[:space:]]+.*pam_(unix|rootok)[.]so/ ) {
|
|
print "auth required pam_wheel.so use_uid group=sudo"
|
|
ins=1
|
|
}
|
|
print
|
|
}
|
|
END {
|
|
if (!ins) {
|
|
print "auth required pam_wheel.so use_uid group=sudo"
|
|
}
|
|
}
|
|
' "${pam}" >| "${tmp}"
|
|
|
|
test -s "${tmp}"
|
|
mv -f "${tmp}" "${pam}"
|
|
rm -f -- "${tmp}" || :
|
|
fi
|
|
:
|
|
EOF
|
|
|
|
return 0
|
|
}
|
|
### Prevents accidental 'unset -f'.
|
|
# shellcheck disable=SC2034
|
|
readonly -f hardening_su
|
|
|
|
#######################################
|
|
# Hardening sudo users (idempotent) and ensure WinSCP SFTP-as-root.
|
|
# Globals:
|
|
# TARGET
|
|
# Arguments:
|
|
# 1: <username>
|
|
# Returns:
|
|
# 0: on success
|
|
# ERR_VERIFY_LOGROTATE: on failure
|
|
# ERR_VERIFY_VISUDO: on failure
|
|
#######################################
|
|
hardening_sudo() {
|
|
### Declare Arrays, HashMaps, and Variables.
|
|
declare var_user="$1"
|
|
declare var_specific="$2"
|
|
declare -r var_logfile="/root/.ciss/cdi/log/4520_accounts_setup.log"
|
|
declare -r var_sudo_iolog_dir="${TARGET}/var/log/sudo-io"
|
|
declare -r var_sudoers_main="${TARGET}/etc/sudoers"
|
|
declare -r var_sudoers_dir="${TARGET}/etc/sudoers.d"
|
|
declare -r var_lr_conf="${TARGET}/etc/logrotate.d/sudo"
|
|
declare -r var_sudoers_winscp_global="${TARGET}/etc/sudoers.d/90-ciss-winscp-sftp"
|
|
declare -r var_sudoers_winscp_user="${TARGET}/etc/sudoers.d/91-ciss-winscp-${var_user}"
|
|
declare -r var_sftp_bin="/usr/lib/openssh/sftp-server"
|
|
|
|
### Create sudo I/O log directory (idempotent).
|
|
if [[ ! -d "${var_sudo_iolog_dir}" ]]; then
|
|
mkdir -p "${var_sudo_iolog_dir}"
|
|
chmod 0700 "${var_sudo_iolog_dir}"
|
|
else
|
|
### Enforce restrictive perms on an existing tree.
|
|
chmod 0700 "${var_sudo_iolog_dir}"
|
|
fi
|
|
|
|
### Ensure sudoers Defaults are present only once. We key on 'iolog_dir' to avoid duplicate blocks.
|
|
if ! grep -qF 'iolog_dir="/var/log/sudo-io"' "${var_sudoers_main}" 2>/dev/null; then
|
|
cat << 'EOF' >> "${var_sudoers_main}"
|
|
|
|
##### Added by CISS.debian.installer
|
|
Defaults log_host, log_year, log_input, log_exit_status, log_subcmds, logfile="/var/log/sudo.log", iolog_dir="/var/log/sudo-io"
|
|
EOF
|
|
fi
|
|
|
|
case "${var_specific,,}" in
|
|
|
|
"ciss")
|
|
### Install global WinSCP SFTP-as-root command alias (idempotent).
|
|
if [[ -x "${TARGET}${var_sftp_bin}" ]]; then
|
|
|
|
if [[ ! -f "${var_sudoers_winscp_global}" ]]; then
|
|
|
|
insert_header "${var_sudoers_winscp_global}"
|
|
insert_comments "${var_sudoers_winscp_global}"
|
|
cat << EOF >| "${var_sudoers_winscp_global}"
|
|
### Added by CISS.debian.installer. WinSCP SFTP-as-root (least privilege).
|
|
### Allow exactly the sftp-server binary, optionally with -e (stderr logging).
|
|
Cmnd_Alias CISS_SFTPROOT = ${var_sftp_bin}, ${var_sftp_bin} -e
|
|
|
|
# Command-scoped hardening for the alias:
|
|
# - noexec : disallow further exec()
|
|
# - !setenv : forbid env manipulation
|
|
# - timestamp_timeout=0: require re-auth each time (no caching)
|
|
Defaults!CISS_SFTPROOT noexec, !setenv, timestamp_timeout=0
|
|
|
|
# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=conf
|
|
EOF
|
|
chmod 0440 "${var_sudoers_winscp_global}"
|
|
|
|
fi
|
|
|
|
else
|
|
|
|
do_log "warn" "file_only" "4520() sftp-server not found at [${var_sftp_bin}] in TARGET; skipping global alias for now."
|
|
|
|
fi
|
|
|
|
### Grant this user access to the alias (idempotent). Only add if not already present; keep the file permissive correctness.
|
|
if [[ -f "${var_sudoers_winscp_user}" ]]; then
|
|
|
|
if ! grep -qE "^${var_user}\s+ALL=\(root\)\s+NOPASSWD:\s+CISS_SFTPROOT\b" "${var_sudoers_winscp_user}" 2>/dev/null; then
|
|
|
|
echo "${var_user} ALL=(root) NOPASSWD: CISS_SFTPROOT" >> "${var_sudoers_winscp_user}"
|
|
|
|
fi
|
|
|
|
else
|
|
|
|
insert_header "${var_sudoers_winscp_user}"
|
|
insert_comments "${var_sudoers_winscp_user}"
|
|
echo "${var_user} ALL=(root) PASSWD: CISS_SFTPROOT" >> "${var_sudoers_winscp_user}"
|
|
printf "# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=conf \n" >> "${var_sudoers_winscp_user}"
|
|
|
|
fi
|
|
chmod 0440 "${var_sudoers_winscp_user}"
|
|
;;
|
|
|
|
"physnet")
|
|
:
|
|
;;
|
|
|
|
"none"|*)
|
|
:
|
|
;;
|
|
|
|
esac
|
|
|
|
### Tighten perms on sudoers.d (idempotent).
|
|
find "${var_sudoers_dir}" -type f -exec chmod 0440 {} \;
|
|
|
|
### Verify sudoers syntax in chroot.
|
|
if ! chroot_script "${TARGET}" "EDITOR=/usr/bin/nano /usr/sbin/visudo -q -c >> ${var_logfile}"; then
|
|
|
|
do_log "warn" "file_only" "4520() Command: [chroot_script ${TARGET} EDITOR=/usr/bin/nano /usr/sbin/visudo -q -c] failed."
|
|
return "${ERR_VERIFY_VISUDO}"
|
|
|
|
else
|
|
|
|
do_log "info" "file_only" "4520() Command: [chroot_script ${TARGET} EDITOR=/usr/bin/nano /usr/sbin/visudo -q -c] successful."
|
|
|
|
fi
|
|
|
|
### Ensure logrotate for '/var/log/sudo.log' exists once.
|
|
if ! grep -qF "/var/log/sudo.log {" "${var_lr_conf}" 2>/dev/null; then
|
|
|
|
insert_header "${var_lr_conf}"
|
|
insert_comments "${var_lr_conf}"
|
|
cat << EOF >> "${var_lr_conf}"
|
|
/var/log/sudo.log {
|
|
daily
|
|
rotate 128
|
|
maxage 384
|
|
compress
|
|
delaycompress
|
|
missingok
|
|
notifempty
|
|
create 600 root root
|
|
sharedscripts
|
|
postrotate
|
|
/usr/bin/systemctl reload sudo.service > /dev/null 2>&1 || true
|
|
endscript
|
|
}
|
|
EOF
|
|
|
|
### Verify logrotate config in chroot.
|
|
if ! chroot_script "${TARGET}" "logrotate -d /etc/logrotate.conf >> ${var_logfile}"; then
|
|
|
|
do_log "warn" "file_only" "4520() Command: [chroot_script ${TARGET} logrotate -d /etc/logrotate.conf] failed."
|
|
return "${ERR_VERIFY_LOGROTATE}"
|
|
|
|
else
|
|
|
|
do_log "info" "file_only" "4520() Command: [chroot_script ${TARGET} logrotate -d /etc/logrotate.conf] successful."
|
|
|
|
fi
|
|
|
|
fi
|
|
|
|
return 0
|
|
}
|
|
### Prevents accidental 'unset -f'.
|
|
# shellcheck disable=SC2034
|
|
readonly -f hardening_sudo
|
|
|
|
#######################################
|
|
# Ensure the 'pam_access' line is not activated in '/etc/pam.d/login' and '/etc/pam.d/sshd' in parallel.
|
|
# MUST be executed inside chroot.
|
|
# Globals:
|
|
# None
|
|
# Arguments:
|
|
# None
|
|
# Returns:
|
|
# 0: on success
|
|
#######################################
|
|
pam_access_sync_login_sshd() {
|
|
### Declare Arrays, HashMaps, and Variables.
|
|
declare var_file_login="/etc/pam.d/login"
|
|
declare var_file_sshd="/etc/pam.d/sshd"
|
|
|
|
### Guard: The file must exist, no-op otherwise.
|
|
if [[ ! -f "${TARGET}${var_file_login}" ]]; then
|
|
return 0
|
|
fi
|
|
|
|
### 1) If the 'pam_access' line is commented in '/etc/pam.d/login', uncomment exactly one occurrence.
|
|
chroot_stdin "${TARGET}" "__payload__" <<'EOF'
|
|
tmp="$(mktemp /etc/pam.d/login.XXXXXX)"
|
|
export LC_ALL=C
|
|
awk '
|
|
BEGIN { done=0 }
|
|
{
|
|
if (!done) {
|
|
line=$0
|
|
sub(/^[[:space:]]*#+[[:space:]]*/, "", line)
|
|
if (line ~ /^[[:space:]]*account[[:space:]]+required[[:space:]]+pam_access[.]so([[:space:]]|$)/) {
|
|
print line; done=1; next
|
|
}
|
|
}
|
|
print
|
|
}
|
|
' /etc/pam.d/login >| "${tmp}"
|
|
test -s "${tmp}"
|
|
mv -f "${tmp}" /etc/pam.d/login
|
|
rm -f "${tmp}" || :
|
|
:
|
|
EOF
|
|
|
|
### 2) If '/etc/pam.d/login' now has an active pam_access line, ensure '/etc/pam.d/sshd' pam_access line(s) are commented out.
|
|
### No-op if '/etc/pam.d/sshd' is absent.
|
|
[[ -f "${TARGET}${var_file_sshd}" ]] || return 0
|
|
|
|
chroot_stdin "${TARGET}" "__payload__" <<'EOF'
|
|
export LC_ALL=C
|
|
if grep -Eq '^[[:space:]]*account[[:space:]]+required[[:space:]]+pam_access[.]so([[:space:]]|$)' /etc/pam.d/login; then
|
|
tmp="$(mktemp /etc/pam.d/sshd.XXXXXX)"
|
|
awk '
|
|
/^[[:space:]]*account[[:space:]]+required[[:space:]]+pam_access[.]so([[:space:]]|$)/ { print "# " $0; next }
|
|
{ print }
|
|
' /etc/pam.d/sshd >| "${tmp}"
|
|
test -s "${tmp}"
|
|
mv -f "${tmp}" /etc/pam.d/sshd
|
|
rm -f "${tmp}" || :
|
|
fi
|
|
:
|
|
EOF
|
|
|
|
return 0
|
|
}
|
|
### Prevents accidental 'unset -f'.
|
|
# shellcheck disable=SC2034
|
|
readonly -f pam_access_sync_login_sshd
|
|
|
|
#######################################
|
|
# Enable per-user TOTP in a given PAM service (login, sshd, su, sudo).
|
|
# Globals:
|
|
# TARGET
|
|
# Arguments:
|
|
# 1: <username>
|
|
# 2: <pam_module>
|
|
# Returns:
|
|
# 0: on success
|
|
#######################################
|
|
pam_access_totp_enable() {
|
|
### Declare Arrays, HashMaps, and Variables.
|
|
declare var_user="$1"
|
|
declare var_module="$2"
|
|
declare var_pam_file="/etc/pam.d/${var_module}"
|
|
declare var_users_file="${TARGET}/etc/ciss/2fa.users"
|
|
declare var_allowlist="/etc/ciss/2fa.users"
|
|
|
|
### Basic sanitation; module must be a safe 'pam.d' filename.
|
|
[[ -n "${var_user:-}" && -n "${var_module:-}" ]] || return 0
|
|
[[ "${var_module}" =~ ^[A-Za-z0-9._+-]+$ ]] || return 0
|
|
[[ -f "${TARGET}${var_pam_file}" ]] || return 0
|
|
|
|
### 0) Ensure the allowlist file contains the user (deduplicated).
|
|
if ! grep -Fxq "${var_user}" "${var_users_file}"; then
|
|
printf '%s\n' "${var_user}" >> "${var_users_file}"
|
|
fi
|
|
|
|
### 1) Ensure a single CISS TOTP framework block is present in the PAM file.
|
|
### The block gates GA by pam_listfile over '/etc/ciss/2fa.users'.
|
|
### We place it right after pam_unix.so or @include common-auth; fallback: append.
|
|
chroot_stdin "${TARGET}" "__payload__" -- "${var_pam_file}" "${var_allowlist}" <<'EOF'
|
|
export LC_ALL=C
|
|
pam="$1"
|
|
allowlist="$2"
|
|
tmp="$(mktemp "${pam}.XXXXXX")"
|
|
|
|
awk -v MARK_S="# CISS TOTP START" -v MARK_E="# CISS TOTP END" -v allowlist="${allowlist}" '
|
|
BEGIN { ins=0 }
|
|
{
|
|
print
|
|
if (!ins && ($0 ~ /^[[:space:]]*auth[[:space:]]+.*pam_unix[.]so/ \
|
|
|| $0 ~ /^[[:space:]]*@include[[:space:]]+common-auth/)) {
|
|
print MARK_S
|
|
### Only users in allowlist must pass GA:
|
|
### pam_listfile sense=deny succeeds for non-listed > skip next line (GA)
|
|
print "auth [success=1 default=ignore] pam_listfile.so item=user sense=deny file=" allowlist " onerr=ignore"
|
|
print "auth required pam_google_authenticator.so"
|
|
print MARK_E
|
|
ins=1
|
|
}
|
|
}
|
|
END {
|
|
if (!ins) {
|
|
print MARK_S
|
|
print "auth [success=1 default=ignore] pam_listfile.so item=user sense=deny file=" allowlist " onerr=ignore"
|
|
print "auth required pam_google_authenticator.so"
|
|
print MARK_E
|
|
}
|
|
}
|
|
' "${pam}" >| "${tmp}"
|
|
|
|
test -s "${tmp}"
|
|
mv -f "${tmp}" "${pam}"
|
|
rm -f -- "${tmp}" || :
|
|
:
|
|
EOF
|
|
|
|
### 2) Comment out any other active GA lines to avoid double prompts.
|
|
chroot_stdin "${TARGET}" "__payload__" -- "${var_pam_file}" <<'EOF'
|
|
export LC_ALL=C
|
|
pam="$1"
|
|
tmp="$(mktemp "${pam}.XXXXXX")"
|
|
awk '
|
|
BEGIN { in_ciss=0 }
|
|
/^# CISS TOTP START$/ { in_ciss=1; print; next }
|
|
/^# CISS TOTP END$/ { in_ciss=0; print; next }
|
|
{
|
|
if (!in_ciss && $0 ~ /^[[:space:]]*auth[[:space:]]+.*pam_google_authenticator[.]so/ && $0 !~ /^[[:space:]]*#/) {
|
|
print "# " $0
|
|
} else {
|
|
print
|
|
}
|
|
}
|
|
' "${pam}" >| "${tmp}"
|
|
|
|
test -s "${tmp}"
|
|
mv -f "${tmp}" "${pam}"
|
|
rm -f -- "${tmp}" || :
|
|
:
|
|
EOF
|
|
|
|
return 0
|
|
}
|
|
### Prevents accidental 'unset -f'.
|
|
# shellcheck disable=SC2034
|
|
readonly -f pam_access_totp_enable
|
|
|
|
#######################################
|
|
# Reads a 256-bit seed from '${DIR_CNF}/mfa_master.txt' (64 hex chars) into VAR_TEMP_PLAIN_MFA_SEED.
|
|
# Globals:
|
|
# DIR_CNF
|
|
# VAR_TEMP_PLAIN_MFA_SEED
|
|
# Arguments:
|
|
# None
|
|
# Returns:
|
|
# 0: on success
|
|
# ERR_READ_SEED_FILE
|
|
#######################################
|
|
read_totp_seed(){
|
|
### Declare Arrays, HashMaps, and Variables.
|
|
declare -r var_mfa_seed_file="${DIR_CNF}/mfa_master.txt"
|
|
declare -g VAR_TEMP_PLAIN_MFA_SEED=""
|
|
|
|
guard_trace on
|
|
|
|
if ! read_password_file "${var_mfa_seed_file}" VAR_TEMP_PLAIN_MFA_SEED; then
|
|
|
|
return "${ERR_READ_SEED_FILE}"
|
|
|
|
fi
|
|
|
|
### Validate: exactly 64 hex.
|
|
[[ "${VAR_TEMP_PLAIN_MFA_SEED}" =~ ^[0-9a-fA-F]{64}$ ]] || return "${ERR_READ_SEED_FILE}"
|
|
|
|
guard_trace off
|
|
|
|
return 0
|
|
}
|
|
### Prevents accidental 'unset -f'.
|
|
# shellcheck disable=SC2034
|
|
readonly -f read_totp_seed
|
|
|
|
#######################################
|
|
# Writes '.google_authenticator'-file for the respective user.
|
|
# Globals:
|
|
# DIR_TMP
|
|
# TARGET
|
|
# Arguments:
|
|
# 1: Username
|
|
# 2: UID
|
|
# 3: GID
|
|
# Returns:
|
|
# 0: on success
|
|
#######################################
|
|
write_google_authenticator_file() {
|
|
### Declare Arrays, HashMaps, and Variables.
|
|
declare var_user="${1}" var_user_id="${2}" var_group_id="${3}" var_secret=""
|
|
case "${1}" in
|
|
root) declare var_base="${TARGET}/root" ;;
|
|
*) declare var_base="${TARGET}/home/${var_user}" ;;
|
|
esac
|
|
declare -i i=0
|
|
|
|
guard_trace on
|
|
|
|
var_secret="$(generate_totp_secret "${var_user}")"
|
|
|
|
umask 0077
|
|
{
|
|
declare accept hex val
|
|
printf '%s\n' "${var_secret}"
|
|
printf '" RATE_LIMIT 3 30\n'
|
|
printf '" WINDOW_SIZE 10\n'
|
|
printf '" DISALLOW_REUSE\n'
|
|
printf '" TOTP_AUTH\n'
|
|
### Emergency Codes (8x unbiased 8-digit, CSPRNG via OpenSSL).
|
|
for i in {1..8}; do
|
|
### Draw 32 bits; rejection sampling to avoid modulo bias.
|
|
while :; do
|
|
hex="$(openssl rand -hex 4)" || exit 1
|
|
val=$((16#${hex})) # 0..4294967295
|
|
accept=$(( (1<<32) / 100000000 * 100000000 )) # 4_200_000_000
|
|
if (( val < accept )); then
|
|
printf '%08d\n' "$(( val % 100000000 ))"
|
|
break
|
|
fi
|
|
done
|
|
done
|
|
} >| "${var_base}/.google_authenticator"
|
|
chown "${var_user_id}:${var_group_id}" "${var_base}/.google_authenticator"
|
|
chmod 0600 "${var_base}/.google_authenticator"
|
|
|
|
{
|
|
printf '%s\n' "${var_user}"
|
|
printf '%s\n' "${var_secret}"
|
|
} >| "${DIR_TMP}/TOTP_${var_user}.secret"
|
|
chmod 0400 "${DIR_TMP}/TOTP_${var_user}.secret"
|
|
|
|
umask 0022
|
|
|
|
guard_trace off
|
|
|
|
return 0
|
|
}
|
|
### Prevents accidental 'unset -f'.
|
|
# shellcheck disable=SC2034
|
|
readonly -f write_google_authenticator_file
|
|
|
|
#######################################
|
|
# Use the official ohmyzsh-installer but force non-interactive behavior; do not run zsh; do not chsh.
|
|
# Globals:
|
|
# TARGET
|
|
# Arguments:
|
|
# 1: Username
|
|
# Returns:
|
|
# 0: on success
|
|
#######################################
|
|
zsh_omz_installer() {
|
|
### Declare Arrays, HashMaps, and Variables.
|
|
declare var_user="${1}"
|
|
|
|
### Install Oh My Zsh and two plugins for a given user (non-interactive, idempotent).
|
|
### Args to payload: $1 = username (e.g., "root" or "alice")
|
|
chroot_stdin "${TARGET}" "__payload__" -- "${var_user}" <<'EOF'
|
|
export LC_ALL=C
|
|
user="$1"
|
|
|
|
### Resolve account data
|
|
pwline="$(getent passwd "${user}" || true)"
|
|
[[ -n "${pwline}" ]] || { echo "User not found: ${user}" >&2; exit 1; }
|
|
IFS=: read -r _ _ uid gid _ home _ <<<"${pwline}"
|
|
|
|
if [[ "${uid}" -eq 0 ]]; then
|
|
### root user: no su needed
|
|
/bin/bash -s <<'ZSHROOT'
|
|
#!/bin/bash
|
|
set -Ceuo pipefail
|
|
export LC_ALL=C
|
|
umask 077
|
|
|
|
### We are running as the target user here
|
|
ZSH_DIR="${HOME}/.oh-my-zsh"
|
|
|
|
### If ZSH_DIR exists but is EMPTY (e.g., previous aborted run), remove it, so the installer can proceed.
|
|
if [[ -d "${ZSH_DIR}" ]] && [[ -z "$(ls -A "${ZSH_DIR}")" ]]; then
|
|
rm -rf "${ZSH_DIR}"
|
|
fi
|
|
|
|
### If already installed (git repo present), skip the installer.
|
|
if [ -d "${ZSH_DIR}/.git" ]; then
|
|
:
|
|
else
|
|
### Download installer to a temp file and run it with non-interactive env.
|
|
inst="$(mktemp)"
|
|
if command -v wget >/dev/null 2>&1; then
|
|
wget -qO "${inst}" https://raw.githubusercontent.com/ohmyzsh/ohmyzsh/master/tools/install.sh
|
|
else
|
|
curl -fsSL -o "${inst}" https://raw.githubusercontent.com/ohmyzsh/ohmyzsh/master/tools/install.sh
|
|
fi
|
|
### Ensure that ZSH is not set for the installer, and keep it fully non-interactive.
|
|
RUNZSH=no CHSH=no KEEP_ZSHRC=yes env -u ZSH sh "${inst}"
|
|
rm -f "${inst}"
|
|
fi
|
|
|
|
### Install plugins (shallow clone; idempotent)
|
|
ZSH_CUSTOM="${ZSH_DIR}/custom"
|
|
mkdir -p "${ZSH_CUSTOM}/plugins"
|
|
[[ -d "${ZSH_CUSTOM}/plugins/zsh-autosuggestions/.git" ]] || \
|
|
git clone --depth 1 https://github.com/zsh-users/zsh-autosuggestions "${ZSH_CUSTOM}/plugins/zsh-autosuggestions"
|
|
[[ -d "${ZSH_CUSTOM}/plugins/zsh-syntax-highlighting/.git" ]] || \
|
|
git clone --depth 1 https://github.com/zsh-users/zsh-syntax-highlighting "${ZSH_CUSTOM}/plugins/zsh-syntax-highlighting"
|
|
|
|
### '~/.zshrc' will be updated later in the main CISS.debian.installer environment.
|
|
|
|
### Do NOT start zsh here and do NOT chsh (RUNZSH/CHSH handled above).
|
|
:
|
|
ZSHROOT
|
|
|
|
### ----------------------------------------------------------------------------------------------------------------------------
|
|
|
|
else
|
|
su - "${user}" -s /bin/bash <<'ZSHUSER'
|
|
#!/bin/bash
|
|
set -Ceuo pipefail
|
|
export LC_ALL=C
|
|
umask 077
|
|
|
|
### We are running as the target user here
|
|
ZSH_DIR="${HOME}/.oh-my-zsh"
|
|
|
|
### If ZSH_DIR exists but is EMPTY (e.g., previous aborted run), remove it, so the installer can proceed.
|
|
if [[ -d "${ZSH_DIR}" ]] && [[ -z "$(ls -A "${ZSH_DIR}")" ]]; then
|
|
rm -rf "${ZSH_DIR}"
|
|
fi
|
|
|
|
### If already installed (git repo present), skip the installer.
|
|
if [ -d "${ZSH_DIR}/.git" ]; then
|
|
:
|
|
else
|
|
### Download installer to a temp file and run it with non-interactive env.
|
|
inst="$(mktemp)"
|
|
if command -v wget >/dev/null 2>&1; then
|
|
wget -qO "${inst}" https://raw.githubusercontent.com/ohmyzsh/ohmyzsh/master/tools/install.sh
|
|
else
|
|
curl -fsSL -o "${inst}" https://raw.githubusercontent.com/ohmyzsh/ohmyzsh/master/tools/install.sh
|
|
fi
|
|
### Ensure that ZSH is not set for the installer, and keep it fully non-interactive.
|
|
RUNZSH=no CHSH=no KEEP_ZSHRC=yes env -u ZSH sh "${inst}"
|
|
rm -f "${inst}"
|
|
fi
|
|
|
|
### Install plugins (shallow clone; idempotent)
|
|
ZSH_CUSTOM="${ZSH_DIR}/custom"
|
|
mkdir -p "${ZSH_CUSTOM}/plugins"
|
|
[[ -d "${ZSH_CUSTOM}/plugins/zsh-autosuggestions/.git" ]] || \
|
|
git clone --depth 1 https://github.com/zsh-users/zsh-autosuggestions "${ZSH_CUSTOM}/plugins/zsh-autosuggestions"
|
|
[[ -d "${ZSH_CUSTOM}/plugins/zsh-syntax-highlighting/.git" ]] || \
|
|
git clone --depth 1 https://github.com/zsh-users/zsh-syntax-highlighting "${ZSH_CUSTOM}/plugins/zsh-syntax-highlighting"
|
|
|
|
### '~/.zshrc' will be updated later in the main CISS.debian.installer environment.
|
|
|
|
### Do NOT start zsh here and do NOT chsh (RUNZSH/CHSH handled above).
|
|
:
|
|
ZSHUSER
|
|
|
|
### ----------------------------------------------------------------------------------------------------------------------------
|
|
fi
|
|
EOF
|
|
|
|
return 0
|
|
}
|
|
### Prevents accidental 'unset -f'.
|
|
# shellcheck disable=SC2034
|
|
readonly -f zsh_omz_installer
|
|
# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh
|