mirror of
https://github.com/ohmyzsh/ohmyzsh.git
synced 2024-11-14 18:00:08 +00:00
113 lines
3.4 KiB
Bash
113 lines
3.4 KiB
Bash
# Get the filename to store/lookup the environment from
|
|
ssh_env_cache="$HOME/.ssh/environment-$SHORT_HOST"
|
|
|
|
function _start_agent() {
|
|
# Check if ssh-agent is already running
|
|
if [[ -f "$ssh_env_cache" ]]; then
|
|
. "$ssh_env_cache" > /dev/null
|
|
|
|
# Test if $SSH_AUTH_SOCK is visible
|
|
zmodload zsh/net/socket
|
|
if [[ -S "$SSH_AUTH_SOCK" ]] && zsocket "$SSH_AUTH_SOCK" 2>/dev/null; then
|
|
return 0
|
|
fi
|
|
fi
|
|
|
|
if [[ ! -d "$HOME/.ssh" ]]; then
|
|
echo "[oh-my-zsh] ssh-agent plugin requires ~/.ssh directory"
|
|
return 1
|
|
fi
|
|
|
|
# Set a maximum lifetime for identities added to ssh-agent
|
|
local lifetime
|
|
zstyle -s :omz:plugins:ssh-agent lifetime lifetime
|
|
|
|
# start ssh-agent and setup environment
|
|
zstyle -t :omz:plugins:ssh-agent quiet || echo >&2 "Starting ssh-agent ..."
|
|
ssh-agent -s ${lifetime:+-t} ${lifetime} | sed '/^echo/d' >! "$ssh_env_cache"
|
|
chmod 600 "$ssh_env_cache"
|
|
. "$ssh_env_cache" > /dev/null
|
|
}
|
|
|
|
function _add_identities() {
|
|
local id file line sig lines
|
|
local -a identities loaded_sigs loaded_ids not_loaded
|
|
zstyle -a :omz:plugins:ssh-agent identities identities
|
|
|
|
# check for .ssh folder presence
|
|
if [[ ! -d "$HOME/.ssh" ]]; then
|
|
return
|
|
fi
|
|
|
|
# add default keys if no identities were set up via zstyle
|
|
# this is to mimic the call to ssh-add with no identities
|
|
if [[ ${#identities} -eq 0 ]]; then
|
|
# key list found on `ssh-add` man page's DESCRIPTION section
|
|
for id in id_rsa id_dsa id_ecdsa id_ed25519 identity; do
|
|
# check if file exists
|
|
[[ -f "$HOME/.ssh/$id" ]] && identities+=($id)
|
|
done
|
|
fi
|
|
|
|
# get list of loaded identities' signatures and filenames
|
|
if lines=$(ssh-add -l); then
|
|
for line in ${(f)lines}; do
|
|
loaded_sigs+=${${(z)line}[2]}
|
|
loaded_ids+=${${(z)line}[3]}
|
|
done
|
|
fi
|
|
|
|
# add identities if not already loaded
|
|
for id in $identities; do
|
|
# if id is an absolute path, make file equal to id
|
|
[[ "$id" = /* ]] && file="$id" || file="$HOME/.ssh/$id"
|
|
# check for filename match, otherwise try for signature match
|
|
if [[ ${loaded_ids[(I)$file]} -le 0 ]]; then
|
|
sig="$(ssh-keygen -lf "$file" | awk '{print $2}')"
|
|
[[ ${loaded_sigs[(I)$sig]} -le 0 ]] && not_loaded+=("$file")
|
|
fi
|
|
done
|
|
|
|
# abort if no identities need to be loaded
|
|
if [[ ${#not_loaded} -eq 0 ]]; then
|
|
return
|
|
fi
|
|
|
|
# pass extra arguments to ssh-add
|
|
local args
|
|
zstyle -a :omz:plugins:ssh-agent ssh-add-args args
|
|
|
|
# if ssh-agent quiet mode, pass -q to ssh-add
|
|
zstyle -t :omz:plugins:ssh-agent quiet && args=(-q $args)
|
|
|
|
# use user specified helper to ask for password (ksshaskpass, etc)
|
|
local helper
|
|
zstyle -s :omz:plugins:ssh-agent helper helper
|
|
|
|
if [[ -n "$helper" ]]; then
|
|
if [[ -z "${commands[$helper]}" ]]; then
|
|
echo >&2 "ssh-agent: the helper '$helper' has not been found."
|
|
else
|
|
SSH_ASKPASS="$helper" ssh-add "${args[@]}" ${^not_loaded} < /dev/null
|
|
return $?
|
|
fi
|
|
fi
|
|
|
|
ssh-add "${args[@]}" ${^not_loaded}
|
|
}
|
|
|
|
# Add a nifty symlink for screen/tmux if agent forwarding is enabled
|
|
if zstyle -t :omz:plugins:ssh-agent agent-forwarding \
|
|
&& [[ -n "$SSH_AUTH_SOCK" && ! -L "$SSH_AUTH_SOCK" ]]; then
|
|
ln -sf "$SSH_AUTH_SOCK" /tmp/ssh-agent-$USERNAME-screen
|
|
else
|
|
_start_agent
|
|
fi
|
|
|
|
# Don't add identities if lazy-loading is enabled
|
|
if ! zstyle -t :omz:plugins:ssh-agent lazy; then
|
|
_add_identities
|
|
fi
|
|
|
|
unset agent_forwarding ssh_env_cache
|
|
unfunction _start_agent _add_identities
|