mirror of
https://github.com/retspen/webvirtcloud
synced 2026-11-08 11:16:47 +00:00
73 lines
2.6 KiB
Bash
Executable file
73 lines
2.6 KiB
Bash
Executable file
#!/usr/bin/env bash
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# Idempotent installer primitives. Sourcing this file has NO side effects;
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# it only defines functions, so it can be unit-tested (conf/test_install_lib.sh).
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# Create <data_dir>/secret_key (mode 600) only if missing or empty; keep an
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# existing key. A blank key would make Django fail to boot, so an empty file is
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# treated as missing.
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wvc_ensure_secret_key() {
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local data_dir="$1" python="${2:-python3}" key_file
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key_file="$data_dir/secret_key"
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mkdir -p "$data_dir"
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chmod 700 "$data_dir"
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if [ ! -s "$key_file" ]; then
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# umask 077 so the key is never group/world readable, even briefly
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( umask 077; "$python" -c 'import secrets; print(secrets.token_urlsafe(50))' > "$key_file" )
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fi
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chmod 600 "$key_file"
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}
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# Copy settings.py from the template only when it does not already exist, so a
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# re-run never overwrites local edits. 0 + "created" on first copy; 1 + "kept"
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# when it already exists.
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wvc_ensure_settings() {
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local template="$1" target="$2"
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if [ -f "$target" ]; then
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echo "kept"
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return 1
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fi
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cp "$template" "$target"
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echo "created"
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return 0
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}
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# Restrict modes so the secret, settings, and db are not world-readable.
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wvc_harden_modes() {
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local settings="$1" db="$2" data_dir="$3"
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[ -e "$settings" ] && chmod 600 "$settings"
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[ -e "$db" ] && chmod 600 "$db"
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[ -d "$data_dir" ] && chmod 700 "$data_dir"
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[ -e "$data_dir/secret_key" ] && chmod 600 "$data_dir/secret_key"
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return 0
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}
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# Install the nginx main config only on first run (keeping a one-time backup of
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# whatever was there), and always refresh the app's conf.d snippet. A re-run
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# therefore never clobbers an operator's edited main nginx.conf.
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wvc_install_nginx() {
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local main_template="$1" snippet="$2" etc="$3" marker
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marker="$etc/.wvc-nginx-installed"
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mkdir -p "$etc/conf.d"
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# Use a dedicated marker (always created on first install) rather than the
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# backup file, which is absent when the host had no nginx.conf to begin with.
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if [ ! -f "$marker" ]; then
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[ -f "$etc/nginx.conf" ] && cp "$etc/nginx.conf" "$etc/nginx.conf.wvc-orig"
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cp "$main_template" "$etc/nginx.conf"
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: > "$marker"
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fi
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cp "$snippet" "$etc/conf.d/webvirtcloud.conf"
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return 0
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}
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# Python list literal for ALLOWED_HOSTS: the FQDN, the loopbacks and the given
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# IPs. IPv6 addresses are bracketed, as Django compares them.
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wvc_allowed_hosts() {
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local host out="" seen=" "
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for host in "$1" localhost 127.0.0.1 ::1 "${@:2}"; do
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case "$host" in *:*) host="[$host]" ;; esac
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case "$seen" in *" $host "*) continue ;; esac
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seen+="$host "
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out+="${out:+, }'$host'"
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done
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echo "[$out]"
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}
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