# are legitimate reasons to want to do this, and in any case the shell
# should not choke or cause unexpected problems should it happen anyway.
+### cleanup
+# XXX: only call after relevant vars have been set up, defined early so that
+# below code can utilize it after they do so
+function _sev_zcleanup {
+ ## gpg forwarding
+ if [[ -d $_sev_gpg_forward_dir && ( -z $1 || $1 == 'gpg-forward' ) ]] {
+ # clean up forward dirs if its session is dead or we ask for it
+ find $_sev_gpg_forward_dir -mindepth 1 -maxdepth 1 -type d |
+ while {read -r x} {
+ # NOTE: the only way we can get here is if we have not been
+ # forwarded before, if the user asks for it, or during
+ # logout. if our own pid already has a dir, it is most likely
+ # stale, the user wants it removed, or something is very
+ # broken—in all 3 of these cases the best choice is remove it.
+ p=$(basename $x)
+ if {[[ -v _sev_gpg_forward_clean || $$ == $p ]] ||
+ ! kill -0 $p 2>/dev/null} {
+ find $x -mindepth 1 -maxdepth 1 | while {read -r y} {
+ # XXX: real dirs will stop unlink, consider it a feature
+ unlink $y
+ }
+ # don't force in case something important is still there
+ rmdir $x
+ }
+ }
+ # reset GNUPGHOME if we removed our own dir
+ if [[ $GNUPGHOME =~ '/.ssh_forward/\d+/*$' && ! -e $GNUPGHOME ]]
+ GNUPGHOME=${GNUPGHOME%$MATCH}
+ }
+
+ ## tmp
+ # NOTE: _sev_tmp is not unset so session dirs will not be recreated
+ # NOTE: XDG dirs that use our tmp are not unset here, they are in zlogout
+ if [[ -d $_sev_tmp && ( -z $1 || $1 == 'tmp' ) ]] {
+ # clean up tmp dirs if its session is dead or we ask for it
+ find $_sev_tmp -mindepth 1 -maxdepth 1 -name '.session.*' -type d |
+ while {read -r x} {
+ # NOTE: same rationale as above
+ p=${$(basename $x)#.session.}
+ if {[[ -v _sev_tmp_clean || $$ == $p ]] ||
+ ! kill -0 $p 2>/dev/null} {
+ rm -rf $x
+ }
+ }
+ }
+
+ unset x p y
+}
+
### lang
-export CHARSET=UTF-8
-export LANG=en_US.UTF-8
-export LC_CTYPE=$LANG
+export CHARSET=${CHARSET:-UTF-8}
+export LANG=${LANG:-en_US.UTF-8}
+export LC_CTYPE=${LC_TYPE:-$LANG}
+
### path
# NOTE: we utilize the fact that unique arrays keep the first occurrence and
# remove any further occurences to capture elements from the old PATH
typeset -U path fpath
# add as many generic paths as possible to keep the order we want
# NOTE: /usr/{local,pkg,games} are unix/bsdisms
+ # XXX: PREFIX not validated, non-posix but Termux uses it
syspath=("$path[@]")
- path=({~/,/,/usr/}sbin /opt/{s,}bin /usr/local/{s,}bin /usr/pkg/{s,}bin
- /usr/X11R{7,6}/bin /usr/games {~/,/,/usr/}bin)
+ path=({~,~/.local,{$PREFIX,}{,/opt,/usr{,/local,pkg}}}/sbin
+ {~,~/.local,{$PREFIX,}{,/opt,/usr{,/local,pkg}}}/bin
+ /usr/{X11R{7,6}/bin,games})
((len=$#path))
path=("$path[@]" "$syspath[@]")
# remove nonexistent and duplicate paths
export _sev_setup_path=
}
-### temp
-# NOTE: it's intentional to separate POSIX tmp for each session (spec says
-# programs should not expect data there to be long-lived) and to keep the
-# same runtime dir and not create a new one if a new login shell is
-# spawned, since the XDG spec calls for the same dir to be utilized for
-# each "session".
-if [[ ! -v _sev_setup_tmp ]] {
+### tmp
+# NOTE: specs say that POSIX tmp and XDG runtime directories should exist
+# until the last session is logged out (POSIX can exist for longer).
+# since we can't reliably keep track of sessions in a cross-platform
+# manner, the current implementation should use a separate directory per
+# toplevel session (i.e. SHLVL=1). this should placate most applications,
+# though it is not expressly spec compliant.
+if [[ ! -v _sev_tmp ]] {
+ _sev_tmp=~/tmp
+ # create personal tmp dir
t=${TMPDIR:-${TEMP:-${TMP:-/tmp}}}/.home-$LOGNAME
- h=~/tmp
- [[ ! -e $t ]] && mkdir -pm700 $t 2>/dev/null
+ [[ ! -e $t ]] && mkdir -m700 $t 2>/dev/null
if [[ ! -d $t ]] {
[[ -o interactive ]] &&
- print -P "%F{red}!!! Can't create temp dir $t%f"
+ print -P "%F{red}!!! Can't create tmpdir $t%f"
# fallback bare directories
- [[ -h $h ]] && unlink $h 2>/dev/null
- [[ ! -e $h ]] && mkdir -m700 $h 2>/dev/null
+ [[ -h $_sev_tmp ]] && unlink $_sev_tmp 2>/dev/null
+ [[ ! -e $_sev_tmp ]] && mkdir -m700 $_sev_tmp 2>/dev/null
}
- # [re-]create link to our tmp
- [[ -h $h || ! -e $h ]] && ln -sfn $t $h 2>/dev/null
+ # link home tmp for convenience if there isn't anything meaningful there
+ [[ -h $_sev_tmp || ! -e $_sev_tmp ]] && ln -sfn $t $_sev_tmp 2>/dev/null
+ export _sev_tmp=$(realpath $_sev_tmp)
+ # ensure dir is clean
+ _sev_zcleanup tmp
# finally create our subdir for this session
- export _sev_tmp=$h/.session.$$
- # ensure dir doesn't exist. if there is already something there it is
- # likely a stale directory or something is very broken—assume the former.
- # the user could also want dirs recreated by unsetting the var.
- if [[ -h $_sev_tmp ]] {
- unlink $_sev_tmp 2>/dev/null
- } elif [[ -e $_sev_tmp ]] {
- rm -rf $_sev_tmp 2>/dev/null
- }
- mkdir -m700 $_sev_tmp 2>/dev/null
- export TMPDIR=$_sev_tmp TEMP=$_sev_tmp TMP=$_sev_tmp
+ h=$_sev_tmp/.session.$$
+ mkdir -m700 $h 2>/dev/null
+ export TMPDIR=$h TEMP=$h TMP=$h
unset t h
- export _sev_setup_tmp=
}
### xdg
# NOTE: include and then remove CONFIG_HOME and DATA_HOME to ensure they
# are not present in the array if it was added before we got to it
typeset -UT XDG_CONFIG_DIRS xdg_config_dirs
- typeset -UT XDG_DATA_DIRS xdg_data_dirs
- export XDG_CONFIG_HOME=$HOME/etc
- xdg_config_dirs=($XDG_CONFIG_HOME $HOME/.config
+ export XDG_CONFIG_HOME=~/etc
+ mkdir $XDG_CONFIG_HOME 2>/dev/null
+ xdg_config_dirs=($XDG_CONFIG_HOME ~/.config
{/opt,/usr/local,/usr/pkg,}/etc/xdg
"${XDG_CONFIG_DIRS:+${xdg_config_dirs[@]}}")
export XDG_CONFIG_DIRS=${XDG_CONFIG_DIRS#$XDG_CONFIG_HOME}
- export XDG_DATA_HOME=$HOME/share
- xdg_data_dirs=($XDG_DATA_HOME $HOME/.local/share
+
+ typeset -UT XDG_DATA_DIRS xdg_data_dirs
+ export XDG_DATA_HOME=~/share
+ mkdir $XDG_DATA_HOME 2>/dev/null
+ xdg_data_dirs=($XDG_DATA_HOME ~/.local/share
/{opt,usr/local,usr/pkg,usr}/share
"${XDG_DATA_DIRS:+${xdg_data_dirs[@]}}")
export XDG_DATA_DIRS=${XDG_DATA_DIRS#$XDG_DATA_HOME}
- # use our custom tmp for cache and runtime
- export XDG_CACHE_HOME=$_sev_tmp/.xdg.cache
- export XDG_RUNTIME_DIR=$_sev_tmp/.xdg.runtime
- # create xdg tmp dirs
- for x in $XDG_CACHE_HOME $XDG_RUNTIME_DIR; do
- # same as in temp creation, ensure it doesn't exist
- if [[ -h $x ]]; then
- unlink $x 2>/dev/null
- elif [[ -e $x ]]; then
- rm -rf $x 2>/dev/null
+
+ mkdir ~/var 2>/dev/null
+ export XDG_STATE_HOME=~/var/lib
+ mkdir $XDG_STATE_HOME 2>/dev/null
+
+ if [[ -v _sev_tmp ]] {
+ export XDG_CACHE_HOME=$_sev_tmp/.xdg.cache
+ mkdir $XDG_CACHE_HOME 2>/dev/null
+
+ export XDG_RUNTIME_DIR=$TMPDIR/.xdg.runtime
+ # same as in tmpdir creation, ensure it doesn't exist
+ if [[ -h $XDG_RUNTIME_DIR ]]; then
+ unlink $XDG_RUNTIME_DIR 2>/dev/null
+ elif [[ -e $XDG_RUNTIME_DIR ]]; then
+ rm -rf $XDG_RUNTIME_DIR 2>/dev/null
fi
- mkdir -m700 $x 2>/dev/null
- done
+ mkdir -m700 $XDG_RUNTIME_DIR 2>/dev/null
+ }
+
# source user dirs after other vars
[[ -e $XDG_CONFIG_HOME/user-dirs.dirs ]] &&
emulate sh -c "source $XDG_CONFIG_HOME/user-dirs.dirs"
export _sev_setup_xdg=
}
-### gpg + ssh + forwarding
+### dbus
+if [[ ! -v DBUS_SESSION_BUS_ADDRESS && -v commands[dbus-launch] ]] {
+ eval $(dbus-launch)
+ export DBUS_SESSION_BUS_ADDRESS DBUS_SESSION_BUS_PID
+}
+
+### gpg home
+if [[ ! -v GNUPGHOME ]] {
+ export GNUPGHOME=~/etc/gnupg
+ if [[ -d ~/.gnupg ]] {
+ mv ~/.gnupg ~/etc/gnupg
+ }
+}
+
+### gpg agent + forwarding
# NOTE: while ssh manages its auth sock in its protocol when ForwardSsh is
# enabled, GPG must be forwarded manually over Unix socket. to support
# this, we forward the restricted gpg-agent extra socket to the remote
# the host if the path the client wants to use is writable. however, this
# would open up too many edge cases where it wouldn't work or be clunky
# (e.g. asking for password twice) to make it worth it.
-if [[ ! -v _sev_setup_agents ]] {
- function _socketpath {
- # dirs are percent-encoded: https://stackoverflow.com/a/64312099
- echo ${1//(#b)%([[:xdigit:]](#c2))/${(#):-0x$match[1]}}
- }
-
- ## gpg forwarding
- if [[ ! -v _sev_gpg_forwarded && -v commands[gpg] ]] {
- export _GNUPG_SOCK_DEST_BASE=/tmp/.gpg-agent-forward
- export _GNUPG_SOCK_DEST_EXT=$(date +%s).$RANDOM
- export _GNUPG_SOCK_DEST=$_GNUPG_SOCK_DEST_BASE.$_GNUPG_SOCK_DEST_EXT
- export _sev_gpg_forward_dir=${GNUPGHOME:-~/.gnupg}/.ssh_forward
- # clean up forward dirs if its session is dead or we ask for it
- if [[ -d $_sev_gpg_forward_dir ]] {
- find $_sev_gpg_forward_dir -type d -mindepth 1 -maxdepth 1 |
- while read -r x; do
- # NOTE: the only way we can get here is if we have not been
- # forwarded before or if the user asks for it. if our own
- # pid already has a dir, it is most likely stale, or
- # something is very broken—assume the former.
- p=$(basename $x)
- if [[ -v _sev_gpg_forward_clean || $$ == $p ]] ||
- ! kill -0 $p 2>/dev/null; then
- find $x -mindepth 1 -maxdepth 1 | while read -r y; do
- unlink $y
- done
- rmdir $x
- fi
- done
- unset x p y
- }
+function _gpg_socketpath {
+ # dirs are percent-encoded: https://stackoverflow.com/a/64312099
+ echo ${1//(#b)%([[:xdigit:]](#c2))/${(#):-0x$match[1]}}
+}
+if [[ ! -v _sev_setup_gpg_forward && -v commands[gpg] ]] {
+ export _GNUPG_SOCK_DEST_BASE=/tmp/.gpg-agent-forward
+ export _GNUPG_SOCK_DEST_EXT=$(date +%s).$RANDOM
+ export _GNUPG_SOCK_DEST=$_GNUPG_SOCK_DEST_BASE.$_GNUPG_SOCK_DEST_EXT
+ export _sev_gpg_forward_dir=${GNUPGHOME:-~/.gnupg}/.ssh_forward
+ _sev_zcleanup gpg-forward
- # find our forwarded socket
- s=($_GNUPG_SOCK_DEST_BASE*(N=oc[1]))
- if [[ -n $s && -v SSH_CLIENT ]] {
- # create new forward dir
- export _sev_gpg_forwarded=
- mkdir -pm700 $_sev_gpg_forward_dir
- h=$_sev_gpg_forward_dir/$$
- mkdir -pm700 $h
- # XXX: is it safe to link scdaemon socket? can its name be changed?
- for x in S.scdaemon gpg.conf gpg-agent.conf sshcontrol \
- pubring.kbx trustdb.gpg private-keys-v1.d crls.d; do
- ln -s ${GNUPGHOME:-~/.gnupg}/$x $h
- done
- export GNUPGHOME=$h
- unset h
- for x in $(gpgconf --list-dirs | grep 'agent-.*-\?socket:'); do
- x=$(_socketpath ${x/#agent-*socket:})
- if [[ ! -v orig ]] {
- # move forwarded socket to first valid agent socket path
- # XXX: if tmp is on different filesystem this may not work
- mv $s $x
- orig=$x
- } else {
- # make links to forwarded socket for any others
- ln -s $orig $x
- }
- done
- unset x orig
+ # find our forwarded socket
+ s=($_GNUPG_SOCK_DEST_BASE*(N=oc[1]))
+ if [[ -n $s && -v SSH_CLIENT ]] {
+ # create new forward dir
+ export _sev_setup_gpg_forward=
+ h=$_sev_gpg_forward_dir/$$
+ mkdir -pm700 $h
+ # XXX: is it safe to link scdaemon socket? can its name be changed?
+ for x (S.scdaemon gpg.conf gpg-agent.conf sshcontrol random_seed
+ pubring.kbx{,~} trustdb.gpg private-keys-v1.d crls.d) {
+ ln -s ${GNUPGHOME:-~/.gnupg}/$x $h
}
- unset s
-
- # what we will forward if we start a new ssh connection
- # NOTE: do this after setting up GNUPGHOME to pick up new socket path;
- # if already connected over SSH, extra should be the remote one
- export _GNUPG_SOCK_SRC=$(_socketpath \
- $(gpgconf --list-dirs agent-extra-socket))
- } else {
- # required for RemoteForward to not error out if the vars are unset
- [[ ! -v _GNUPG_SOCK_SRC ]] && export _GNUPG_SOCK_SRC=/nonexistent
- [[ ! -v _GNUPG_SOCK_DEST ]] && export _GNUPG_SOCK_DEST=/nonexistent
+ export GNUPGHOME=$h
+ unset h
+ for x in $(gpgconf --list-dirs | grep 'agent-.*-\?socket:'); do
+ x=$(_gpg_socketpath ${x/#agent-*socket:})
+ if [[ ! -v orig ]] {
+ # move forwarded socket to first valid agent socket path
+ # XXX: if tmp is on different filesystem this may not work
+ mv $s $x
+ orig=$x
+ } else {
+ # make links to forwarded socket for any others
+ ln -s $orig $x
+ }
+ done
+ unset x orig
}
+ unset s
+
+ # what we will forward if we start a new ssh connection
+ # NOTE: do this after setting up GNUPGHOME to pick up new socket path;
+ # if already connected over SSH, extra should be the remote one
+ export _GNUPG_SOCK_SRC=$(_gpg_socketpath \
+ $(gpgconf --list-dirs agent-extra-socket))
+} elif [[ ! -v _sev_setup_gpg_forward ]] {
+ # required for RemoteForward to not error out if the vars are unset
+ [[ ! -v _GNUPG_SOCK_SRC ]] && export _GNUPG_SOCK_SRC=/nonexistent
+ [[ ! -v _GNUPG_SOCK_DEST ]] && export _GNUPG_SOCK_DEST=/nonexistent
+}
- ## gpg agent
- if [[ -v commands[gpg-connect-agent] ]] {
- [[ -o interactive ]] && print -nP '%F{blue}>>>%f GPG agent: %F{green}'
- gpg-connect-agent /bye >/dev/null 2>&1
- if [[ $? -ne 0 ]] {
- [[ -o interactive ]] &&
- print -P '%F{red}Error communicating with GPG agent%f'
- } elif [[ ! -v _sev_gpg_forward && ! -v GPG_TTY &&
- ( -o interactive || -v DISPLAY ) ]] {
- # if we aren't forwarded, set up tty if it isn't and we're
- # in an interactive session
- export GPG_TTY=$(tty)
- export PINENTRY_USER_DATA=USE_TTY=$((!${+DISPLAY}))
- gpg-connect-agent UPDATESTARTUPTTY /bye >/dev/null 2>&1
- [[ -o interactive ]] &&
- print -P "Updated TTY%f"
+### gpg agent
+if [[ -v commands[gpg-connect-agent] && ( ! -v _sev_setup_gpgagent ||
+ ( -v _sev_first_display && -z $_sev_first_display ) ) ]] {
+ # avoid printing if we have already set up tty before
+ [[ ! -v _sev_setup_gpgagent && -o interactive ]] && p=true || p=false
+ if {$p} {
+ print -nP '%F{blue}>>>%f GPG: '
+ if [[ -v _sev_setup_gpg_forward ]] {
+ print -nP '%F{yellow}Forwarded agent '
} else {
- [[ -o interactive ]] &&
- print -P 'Ready%f'
+ print -nP '%F{green}Agent '
+ }
+ }
+ gpg-connect-agent /bye >/dev/null 2>&1
+ if [[ $? -ne 0 ]] {
+ $p && print -P '%F{red}communication error'
+ } else {
+ if [[ ! -v _sev_setup_gpg_forward ]] {
+ if [[ ${+GPG_TTY} -eq 0 && -o interactive ]]
+ export GPG_TTY=$(tty)
+ if [[ ( -v DISPLAY || -v WAYLAND_DISPLAY ) &&
+ ${PINENTRY_USER_DATA/USE_TTY=0} == $PINENTRY_USER_DATA ]]
+ export PINENTRY_USER_DATA=USE_TTY=$((
+ ${+DISPLAY} + ${+WAYLAND_DISPLAY} == 0))
+ # XXX: don't know if gpg-agent supports comments after directives
+ # XXX: path could have #
+ sed -Ei 's#^([[:space:]]*pinentry-program[[:space:]]).*$#\1'${commands[pinentry]:-/dev/null}'#' \
+ ${GNUPGHOME:-~/.gnupg}/gpg-agent.conf
+ # XXX: could check for changes before doing this to save perf
+ gpg-connect-agent RELOADAGENT UPDATESTARTUPTTY /bye >/dev/null 2>&1
+ if {$p} {
+ gpg-connect-agent /subst /serverpid \
+ "/echo pid \${get serverpid} on $GPG_TTY" /bye 2>/dev/null
+ print -nP '%f'
+ }
+ } elif {$p} {
+ print -P '%f'
}
+ export _sev_setup_gpgagent=
}
+ unset p
+}
- ## ssh agent
+### ssh agent
+if [[ ! -v _sev_setup_ssh ]] {
# NOTE: preferred order of agents to check: okcagent, gnupg, openssh
# first block takes care of okcagent and openssh, second gnupg
+ # XXX: doesn't actually check if ssh is enabled in gpg
[[ -o interactive ]] && print -nP '%F{blue}>>>%f SSH: %F{green}'
if [[ ! -v SSH_AUTH_SOCK && ( -v commands[okc-ssh-agent] ||
( -v commands[ssh-agent] && ! -v commands[gpg] ) ) ]] {
okc=${commands[okc-ssh-agent]:+okc-}
- agentfile=~/tmp/${okc}ssh-agent-exports
+ t=${_sev_tmp:-${TMPDIR:-${TEMP:-${TMP:-/tmp}}}}
+ e=$t/${okc}ssh-agent-exports
typeset sock=
typeset -i pid=
- if [[ -f $agentfile ]] {
- IFS=$'\0' read -r sock pid <$agentfile
+ if [[ -f $e ]] {
+ IFS=$'\0' read -r sock pid <$e
}
if [[ -S $sock && $pid > 0 ]] && kill -0 $pid; then
[[ -o interactive ]] && print -P "Reusing agent PID $pid%f"
export SSH_AUTH_SOCK=$sock
export SSH_AGENT_PID=$pid
else
- e=${okc}ssh-agent
+ e='TMPDIR=$t ${okc}ssh-agent'
# TODO: ensure ssh-agent path looks legit to avoid unsafe eval?
# XXX: doesn't appear to be any other way to handle redirection.
# because eval needs to write to current scope environment
# subshells can't be used to capture output and print.
if [[ -o interactive ]] {
- eval `$e`
+ eval $(eval $=e)
print -nP '%f'
} else {
- eval `$e` >/dev/null 2>&1
+ eval $(eval $=e) >/dev/null 2>&1
}
- echo -n $SSH_AUTH_SOCK$'\0'$SSH_AGENT_PID >!$agentfile
+ echo -n $SSH_AUTH_SOCK$'\0'$SSH_AGENT_PID >!$e
fi
- unset okc agentfile sock pid
+ unset okc t e sock pid
} elif [[ ! -v SSH_AUTH_SOCK && -v commands[gpg] ]] {
- # since gpg agent was started above, we just have to export and notify
+ # since gpg should have been started above, just export and notify
if [[ -o interactive ]] {
- if [[ -v _sev_gpg_forwarded ]] {
- echo 'Remote GPG agent'
+ if [[ -v _sev_setup_gpg_forward ]] {
+ echo 'Forwarded GPG agent'
} else {
gpg-connect-agent /subst /serverpid \
- '/echo GPG agent PID ${get serverpid}' /bye
+ '/echo GPG agent pid ${get serverpid}' /bye
}
print -nP '%f'
}
- export SSH_AUTH_SOCK=$(_socketpath \
+ export SSH_AUTH_SOCK=$(_gpg_socketpath \
$(gpgconf --list-dirs agent-ssh-socket))
} elif [[ -v SSH_AUTH_SOCK ]] {
[[ -o interactive ]] && print -P 'Preconfigured agent%f'
[[ -o interactive ]] && print -P '%F{red}No agent available%f'
}
- ## cleanup
- unfunction _socketpath
-
- export _sev_setup_agents=
+ export _sev_setup_ssh=
}
+unfunction _gpg_socketpath
-## perl local lib
-# TODO: debounce this
-[[ -v commands[perl] && -d $XDG_DATA_HOME/perl5/lib/perl5 ]] &&
- eval $(perl -I$XDG_DATA_HOME/perl5/lib/perl5
+### perl local lib
+[[ -v commands[perl] && -d $XDG_DATA_HOME/perl5/lib/perl5 &&
+ ! -v PERL_LOCAL_LIB_ROOT ]] &&
+ eval $(perl -I$XDG_DATA_HOME/perl5/lib/perl5 \
-Mlocal::lib=$XDG_DATA_HOME/perl5 2>/dev/null)
+
### load site-specific
if [[ -f ~/.zprofile.local ]] { source ~/.zprofile.local }
projects / sev's projects / dotfiles.git / blobdiff