339 lines
8.9 KiB
Diff
339 lines
8.9 KiB
Diff
diff --git a/gale-install.in b/gale-install.in
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index 50e8ad8..eec0ed2 100644
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--- a/gale-install.in
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+++ b/gale-install.in
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@@ -29,22 +29,78 @@ testkey_stdin() {
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gkinfo -x 2>/dev/null | qgrep "^Public key: <$1>"
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}
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-if [ -n "$GALE_SYS_DIR" ]; then
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- SYS_DIR="$GALE_SYS_DIR"
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-elif [ -n "$sysconfdir" ]; then
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- SYS_DIR="$sysconfdir/gale"
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+INST_SYS_DIR="$sysconfdir/gale"
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+
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+if [ `id -u` -eq 0 ]; then
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+ is_root=yes
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+ SYS_DIR=/etc/gale
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+else
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+ is_root=no
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+ SYS_DIR="$HOME/.gale"
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+fi
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+
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+if [ -f /etc/NIXOS ]; then
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+ is_nixos=yes
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+else
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+ is_nixos=no
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+fi
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+
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+if [ -u /var/setuid-wrappers/gksign ]; then
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+ cat <<EOM
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+
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+Gale appears to have already been set up via the NixOS module system (check
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+/etc/nixos/configuration.nix).
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+
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+EOM
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+
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+ exit 0
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+fi
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+
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+if [ $is_root = yes ]; then
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+ cat <<EOM
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+
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+You are running gale-install as root, so I'm going to assume you want to set up
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+Gale for system-wide use. Unfortunately, Gale expects to be able to run the
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+"gksign" program via setuid, and we can't change gksign's permissions once it's
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+already been installed because the Nix store is immutable by design.
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+
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+EOM
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+
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+ if [ $is_nixos = no ]; then
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+ cat <<EOM
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+
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+This isn't a NixOS system. Gale can only be installed for a single user on
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+non-NixOS systems. If you want a system-wide installation, you'll have to
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+install Gale the old-fashioned way. Sorry.
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+
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+EOM
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+
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+ exit 1
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+ fi
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+ cat <<EOM
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+
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+This script will generate a domain key for you, and after you get it signed, you
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+can finish the setup process by configuring Gale via the NixOS module system
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+(i.e. /etc/nixos/configuration.nix).
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+
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+EOM
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+
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else
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- echo "Error: cannot locate Gale system configuration directory."
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- exit 1
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+ cat <<EOM
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+
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+Hi. You are running gale-install as a normal user, so I'm going to assume you
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+want to set up Gale for your own (i.e. non-system-wide) use.
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+
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+EOM
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+
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fi
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-CONF="$SYS_DIR/conf"
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umask 022
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-PATH="$bindir:$sbindir:$PATH:/usr/ucb"
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+PATH="$bindir:$sbindir:$PATH"
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export PATH
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-if [ -f "$CONF" ]; then
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- exec 3<"$CONF"
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+if [ -n "$SYS_DIR" ] && [ -f "$SYS_DIR/conf" ]; then
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+ exec 3<"$SYS_DIR/conf"
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while read var value <&3 ; do
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case "$var" in
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@@ -58,52 +114,14 @@ if [ -f "$CONF" ]; then
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exec 3<&-
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fi
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-USER="`whoami`"
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-if [ -z "$USER" ]; then
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- echo "Error: cannot determine your username."
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- exit 1
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-fi
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-
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-# -----------------------------------------------------------------------------
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-# check directory structure
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-
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-if [ ! -d "$SYS_DIR" ]; then
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- echo "Error: Invalid SYS_DIR: \"$SYS_DIR\"."
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- exit 1
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-fi
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-
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# -----------------------------------------------------------------------------
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-# get settings for important variables: user, domain, server
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+# get settings for important variables: domain, server
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-[ -n "$CONF_GALE_USER" ] && GALE_USER="$CONF_GALE_USER"
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[ -n "$CONF_GALE_DOMAIN" ] && GALE_DOMAIN="$CONF_GALE_DOMAIN"
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[ -n "$CONF_GALE_SERVER" ] && GALE_SERVER="$CONF_GALE_SERVER"
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-if [ -z "$GALE_USER" ]; then
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-cat << EOM
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-
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-Hi. You need to denote a user to own the Gale domain secret key. You must
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-trust this user with Gale authentication for your domain; the "gksign" program
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-will run as this user. I recommend using a special "gale" user; if you don't
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-have administrative privileges here, you'll probably have to use your own
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-account. I do not recommend the use of "root".
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-
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-No harm done if you stop this script now to set up such a user.
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-
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-EOM
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-
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- printf "Enter the Gale username: "
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- read GALE_USER
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- if [ -z "$GALE_USER" ]; then
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- echo "Error: Invalid username or no home dir: \"$GALE_USER\"."
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- exit 1
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- fi
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-else
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- echo "Using \"$GALE_USER\" as the Gale owner."
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-fi
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-
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if [ -z "$GALE_DOMAIN" ] ; then
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-cat << EOM
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+ cat << EOM
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You need to identify the name of your Gale domain for two purposes:
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@@ -140,97 +158,56 @@ else
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fi
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# -----------------------------------------------------------------------------
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-# create configuration file
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-
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-if [ ! -f "$CONF" ]; then
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-cat > "$CONF" <<EOM
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-# $CONF -- created by Gale installer; edit to suit.
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-EOM
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+# create configuration file (if this is a single-user setup)
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+
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+if [ $is_root = no ]; then
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+ CONF="$SYS_DIR/conf"
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+
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+ if [ ! -d "$SYS_DIR" ]; then
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+ run mkdir -m 0700 -p "$SYS_DIR"
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+ run mkdir -m 0700 -p "$SYS_DIR/auth"
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+ run mkdir -m 0755 -p "$SYS_DIR/auth/trusted"
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+ run cp -f "$INST_SYS_DIR/auth/trusted/ROOT" "$SYS_DIR/auth/trusted"
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+ run mkdir -m 0700 -p "$SYS_DIR/auth/private"
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+ run mkdir -p "$SYS_DIR/auth/local" "$SYS_DIR/auth/cache"
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+ fi
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-cat <<EOM
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+ if [ ! -f "$CONF" ]; then
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+ cat <<EOM
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*** Creating "$CONF".
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Examine and edit this file to your taste and local needs.
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If you want to recreate it from scratch, remove it and re-run this.
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-EOM
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-fi
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-
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-[ -n "$CONF_GALE_USER" ] || cat >> "$CONF" <<EOM
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-# The user who owns the domain secret key. (Used in installation and upgrade)
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-GALE_USER $GALE_USER
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EOM
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-[ -n "$CONF_GALE_DOMAIN" ] || cat >> "$CONF" << EOM
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+ cat > "$CONF" <<EOF
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+# $CONF -- created by Gale installer; edit to suit.
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# The authentication domain to use. (Mandatory)
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GALE_DOMAIN $GALE_DOMAIN
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-EOM
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-
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-# -----------------------------------------------------------------------------
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-# make gksign setuid
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+EOF
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-gksign="$sbindir/gksign"
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-readlink="`which readlink 2>/dev/null`"
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-[ -x "$readlink" ] && gksignlink="`"$readlink" "$gksign" 2>/dev/null`"
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-[ -f "$gksignlink" ] && gksign="$gksignlink"
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-
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-echo ""
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-if copy chown "$GALE_USER" "$gksign" ; then
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- :
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-else
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- echo "*** We need to chown $GALE_USER '$gksign'."
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- echo " Please run this script as a user that can do so,"
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- echo " or do so yourself and re-run this script."
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- exit 1
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+ fi
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fi
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-run chmod 4755 "$gksign"
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-# -----------------------------------------------------------------------------
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-# create a domain, if necessary
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+if [ $is_root = no ]; then
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+ GALE_SYS_DIR="$SYS_DIR"
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+ export GALE_SYS_DIR
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-echo ""
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-if test -u "$gksign" || copy chmod u+s "$gksign" ; then
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- :
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+ testkey "$GALE_DOMAIN" && exit 0
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+ echo "*** You lack a signed key for your domain, \"$GALE_DOMAIN\"."
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+ GALE="$SYS_DIR"
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else
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- echo "*** We need to chmod u+s '$gksign'."
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- echo " Please run this script as a user that can do so,"
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- echo " or do so yourself and re-run this script."
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- exit 1
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-fi
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-
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-testkey "$GALE_DOMAIN" && exit 0
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-echo "*** You lack a signed key for your domain, \"$GALE_DOMAIN\"."
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-
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-if [ "x$GALE_USER" != "x$USER" ]; then
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-cat <<EOM
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-Become user "$GALE_USER" (you are now "$USER") and run this script again
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-to create a new domain; contact your domain administrator if you wish to
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-become part of an existing domain.
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-EOM
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- exit 1
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-fi
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-
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-if [ -z "$HOME" ]; then
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- cd
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- HOME="`pwd`"
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- echo "Warning: \$HOME not set, assuming \"$HOME\"."
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-fi
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-
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-GALE="$HOME/.gale"
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-mkdir -p "$GALE"
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-if [ ! -w "$GALE" ]; then
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- echo "Error: Cannot create \"$GALE\"."
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- exit 1
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+ GALE="`pwd`"
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fi
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unsigned="$GALE/$GALE_DOMAIN.unsigned"
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signer="`echo "$GALE_DOMAIN" | sed 's%^[^.@:/]*[.@:/]%%'`"
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[ -z "$signer" ] && signer="ROOT"
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-if [ -f "$unsigned" ]; then
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-
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-cat << EOM
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+if [ $is_root = no ] && [ -f "$unsigned" ]; then
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+ cat << EOM
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Okay, so we've already been here. Last time, I created the file
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"$unsigned" for you to have signed.
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@@ -275,16 +252,12 @@ EOM
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exit 1
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fi
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-cat << EOM
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-
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-The domain should be properly configured now. Assuming users can access a
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-version of "gksign" setuid to "$GALE_USER" (this user), they should be
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-able to start running clients and generating IDs for themselves.
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+ cat << EOM
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-The installation process is complete!
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+The domain should be properly configured now. The installation process is
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+complete!
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EOM
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-
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exit 0
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fi
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@@ -300,7 +273,10 @@ printf "Enter the description: "
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read descr
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echo "We will generate the key now. Have patience."
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-gkgen -r "$GALE/auth/private/$GALE_DOMAIN.gpri" \
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+if [ $is_root = no ]; then
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+ install_gpri=auth/private/
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+fi
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+gkgen -r "$GALE/${install_gpri}$GALE_DOMAIN.gpri" \
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-u "$unsigned" "$GALE_DOMAIN" /"$descr" || exit 1
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cat << EOM
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@@ -311,8 +284,29 @@ the owner of the "$signer" domain through appropriate means.
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Take care to preseve the file's binary data; you may need to uuencode it.
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Assuming they trust you with your subdomain, they should pass the key through
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-"gksign" as a filter, returning the signed output to you. When you have this
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-signed key file available, re-run this script, and we will move on to the
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-next step.
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+"gksign" as a filter, returning the signed output to you.
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+
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+EOM
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+
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+if [ $is_nixos = yes ]; then
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+ cat <<EOM
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+
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+When you have this signed key file available, you can finish the setup process
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+by placing the private key and signed public key in a directory (they will be
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+copied) and setting "services.gale.keyPath" in /etc/nixos/configuration.nix.
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EOM
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+else
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+ cat <<EOM
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+
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+When you have this signed key file available, re-run this script, and we will
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+move on to the next step.
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+
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+*** IMPORTANT ***
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+You must set GALE_SYS_DIR="$GALE_SYS_DIR" in your environment before re-running
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+this script and before running any Gale programs once setup is finished! Make
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+sure to set it now, and consider setting it via your shell initialization files
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+so that you don't forget to do it next login.
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+
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+EOM
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+fi
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