laily
cffe3f01f4
Include 落在 Host/Match 之后会被当成该块的条件引入。ssh2 与 ff ssh 改为检测顶层 Include，缺失时插入文件首行并去掉块内重复项。
558 lines
18 KiB
Fish
558 lines
18 KiB
Fish
# ff ssh: local init (keys + config.d), copy key + add host, copy config to remote
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function __ff_ssh_has_key
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for f in $HOME/.ssh/id_*
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if test -f $f; and not string match -q '*.pub' -- $f
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return 0
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end
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end
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return 1
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end
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function __ff_ssh_ensure_keys
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if __ff_ssh_has_key
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echo "SSH key exists, skip generation"
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return 0
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end
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set -l key_path "$HOME/.ssh/id_ed25519"
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set -l comment "$USER@"(hostname -s 2>/dev/null; or echo localhost)
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mkdir -p "$HOME/.ssh"
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chmod 700 "$HOME/.ssh"
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echo "No SSH key found, generating ed25519: $key_path"
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if test -t 0
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ssh-keygen -t ed25519 -f $key_path -C $comment
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else
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ssh-keygen -t ed25519 -f $key_path -C $comment -N ""
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echo "Non-interactive mode: created with empty passphrase"
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end
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end
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function __ff_ssh_has_toplevel_include --argument ssh_config
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awk '
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tolower($1) == "host" || tolower($1) == "match" { saw_block = 1 }
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tolower($1) == "include" {
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for (i = 2; i <= NF; i++) {
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if (tolower($i) ~ /(^|\/)config\.d\/\*/) {
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if (!saw_block) found_ok = 1
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}
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}
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}
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END { exit(found_ok ? 0 : 1) }
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' "$ssh_config"
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end
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function __ff_ssh_prepend_include --argument ssh_config include_line
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set -l tmp (mktemp)
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awk -v include_line="$include_line" '
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function is_config_d_include() {
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if (tolower($1) != "include") {
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return 0
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}
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for (i = 2; i <= NF; i++) {
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if (tolower($i) ~ /(^|\/)config\.d\/\*/) {
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return 1
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}
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}
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return 0
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}
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BEGIN { print include_line }
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is_config_d_include() { next }
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{ print }
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' "$ssh_config" > $tmp
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cp $tmp "$ssh_config"
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rm -f $tmp
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chmod 600 "$ssh_config"
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end
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function __ff_ssh_ensure_config_d
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set -l ssh_config "$HOME/.ssh/config"
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set -l include_line "Include ~/.ssh/config.d/*"
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mkdir -p "$HOME/.ssh/config.d"
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chmod 700 "$HOME/.ssh"
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if not test -f $ssh_config
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printf '%s\n' "$include_line" > $ssh_config
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chmod 600 $ssh_config
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echo "Created $ssh_config with $include_line"
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return
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end
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chmod 600 $ssh_config
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if __ff_ssh_has_toplevel_include $ssh_config
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echo "config.d Include already in $ssh_config"
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return
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end
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set -l backup "$ssh_config.backup."(date +%Y%m%d%H%M%S)
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cp -p $ssh_config $backup
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__ff_ssh_prepend_include $ssh_config "$include_line"
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echo "Prepended to $ssh_config: $include_line (backup $backup)"
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end
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function __ff_ssh_resolve_path --argument path
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if test -L $path
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set path (readlink $path)
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if not string match -q '/*' -- $path
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set path "$HOME/.ssh/$path"
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end
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end
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echo $path
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end
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function __ff_ssh_remote_has_include --argument host
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set -l script 'test -f ~/.ssh/config && awk "
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tolower(\$1) == \"host\" || tolower(\$1) == \"match\" { saw_block = 1 }
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tolower(\$1) == \"include\" {
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for (i = 2; i <= NF; i++) {
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if (tolower(\$i) ~ /(^|\/)config\.d\/\*/) {
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if (!saw_block) found_ok = 1
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}
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}
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}
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END { exit(found_ok ? 0 : 1) }
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" ~/.ssh/config'
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printf '%s\n' "$script" | ssh -qT $host sh -s
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end
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function __ff_ssh_remote_ensure_include --argument host
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set -l script 'mkdir -p ~/.ssh/config.d && chmod 700 ~/.ssh
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include_line="Include ~/.ssh/config.d/*"
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has_toplevel() {
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awk "
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tolower(\$1) == \"host\" || tolower(\$1) == \"match\" { saw_block = 1 }
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tolower(\$1) == \"include\" {
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for (i = 2; i <= NF; i++) {
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if (tolower(\$i) ~ /(^|\/)config\.d\/\*/) {
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if (!saw_block) found_ok = 1
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}
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}
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}
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END { exit(found_ok ? 0 : 1) }
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" ~/.ssh/config
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}
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if [ ! -f ~/.ssh/config ]; then
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printf "%s\n" "$include_line" > ~/.ssh/config
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chmod 600 ~/.ssh/config
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echo "Created remote config with config.d Include"
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elif has_toplevel; then
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echo "Remote config.d Include already exists"
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else
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tmp=$(mktemp)
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awk -v include_line="$include_line" "
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function is_config_d_include() {
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if (tolower(\$1) != \"include\") return 0
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for (i = 2; i <= NF; i++) {
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if (tolower(\$i) ~ /(^|\/)config\.d\/\*/) return 1
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}
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return 0
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}
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BEGIN { print include_line }
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is_config_d_include() { next }
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{ print }
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" ~/.ssh/config > "$tmp"
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cp "$tmp" ~/.ssh/config
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rm -f "$tmp"
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chmod 600 ~/.ssh/config
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echo "Prepended config.d Include on remote"
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fi'
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printf '%s\n' "$script" | ssh -T $host sh -s
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end
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function __ff_ssh_resolve_copy_src --argument file
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set -l src $file
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if test -f $src
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echo $src
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return 0
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end
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set -l in_config_d "$HOME/.ssh/config.d/$file"
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if test -f $in_config_d
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echo $in_config_d
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return 0
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end
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set -l dotfile_src "$HOME/.dotfile/ssh/config.d/$file"
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if test -f $dotfile_src
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echo $dotfile_src
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return 0
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end
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return 1
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end
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function __ff_ssh_copy_remote
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set -l host $argv[1]
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set -l files $argv[2..-1]
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set -l ssh_dir "$HOME/.ssh"
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set -l main_config "$ssh_dir/config"
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if test -z "$host"
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echo "Usage: ff ssh copy <host> <config-file>..."
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echo " host: SSH alias or user@hostname"
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echo " file: path, or name under ~/.ssh/config.d/"
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return 1
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end
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if test (count $files) -eq 0
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echo "Usage: ff ssh copy <host> <config-file>..."
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echo ""
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echo "Examples:"
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echo " ff ssh copy mynas 30-hanxi.conf"
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echo " ff ssh copy mynas ~/.dotfile/ssh/config.d/20-personal.conf"
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if test -d "$ssh_dir/config.d"
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echo ""
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echo "Available in ~/.ssh/config.d/:"
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ls -1 "$ssh_dir/config.d/"
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end
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return 1
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end
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echo "Checking remote Include on $host ..."
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ssh -q $host "mkdir -p ~/.ssh/config.d && chmod 700 ~/.ssh"
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if __ff_ssh_remote_has_include $host
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echo "Remote config.d Include: OK"
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else
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echo "Remote missing config.d Include, adding ..."
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__ff_ssh_remote_ensure_include $host
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end
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for f in $files
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set -l src (__ff_ssh_resolve_copy_src $f 2>/dev/null)
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if test $status -ne 0 -o -z "$src"
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echo "Error: file not found: $f"
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return 1
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end
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set -l resolved_main (__ff_ssh_resolve_path $main_config)
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set -l name (basename $src)
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if test "$src" = "$resolved_main"; or test "$name" = config
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set -l ts (date +%Y%m%d%H%M%S)
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ssh -q $host "test -f ~/.ssh/config && cp ~/.ssh/config ~/.ssh/config.bak.$ts || true"
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scp -q $src "$host:.ssh/config"
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ssh -q $host "chmod 600 ~/.ssh/config"
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echo "Copied $src -> $host:~/.ssh/config"
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else
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scp -q $src "$host:.ssh/config.d/$name"
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ssh -q $host "chmod 600 ~/.ssh/config.d/$name"
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echo "Copied $src -> $host:~/.ssh/config.d/$name"
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end
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end
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echo "Done."
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end
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# ---- ssh-style argument parsing -------------------------------------------
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# ssh short options that consume a following value
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function __ff_ssh_opt_takes_value --argument-names flag
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contains -- $flag -b -c -D -E -e -F -I -i -J -L -l -m -O -o -p -Q -R -S -W -w
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end
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# First non-option argument of `ssh`-style args (the [user@]host)
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function __ff_ssh_find_target
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set -l n (count $argv)
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set -l i 1
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while test $i -le $n
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set -l a $argv[$i]
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if test "$a" = '--'
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set i (math $i + 1)
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if test $i -le $n
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echo $argv[$i]
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end
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return 0
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end
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if string match -q -- '-*' $a
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set -l flag (string sub -s 1 -l 2 -- $a)
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if test (string length -- $a) -eq 2; and __ff_ssh_opt_takes_value $flag
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set i (math $i + 2)
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continue
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end
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set i (math $i + 1)
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continue
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end
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echo $a
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return 0
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end
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return 1
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end
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# Value of a short option, supporting both `-i file` and `-ifile`
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function __ff_ssh_argv_value --argument-names flag
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set -l args $argv[2..-1]
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set -l n (count $args)
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set -l flen (string length -- $flag)
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set -l i 1
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while test $i -le $n
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set -l a $args[$i]
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if test "$a" = "$flag"
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set -l j (math $i + 1)
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if test $j -le $n
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echo $args[$j]
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end
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return 0
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end
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if test (string length -- $a) -gt $flen; and string match -q -- "$flag*" $a
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string sub -s (math $flen + 1) -- $a
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return 0
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end
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set i (math $i + 1)
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end
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return 1
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end
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# One value from `ssh -G` output (stdin)
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function __ff_ssh_gval --argument-names key
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while read -l line
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set -l trimmed (string trim -- $line)
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set -l k (string split -m1 ' ' -- $trimmed)[1]
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if test (string lower -- $k) = (string lower -- $key)
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string replace -r '^\S+\s+' '' -- $trimmed
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return 0
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end
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end
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end
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# File that already declares `Host <alias>` (main config or config.d)
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function __ff_ssh_find_alias_file --argument-names alias_name
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set -l files $HOME/.ssh/config
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if test -d $HOME/.ssh/config.d
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set files $files $HOME/.ssh/config.d/*
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end
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for f in $files
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test -f $f; or continue
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if awk -v want=(string lower -- $alias_name) '
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tolower($1) == "host" {
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for (i = 2; i <= NF; i++)
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if (tolower($i) == want) hit = 1
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}
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END { exit(hit ? 0 : 1) }
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' $f
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echo $f
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return 0
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end
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end
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return 1
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end
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# 复制公钥到远端（ssh-copy-id），失败不阻断配置写入
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function __ff_ssh_copy_id
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set -l target $argv[1]
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set -l port $argv[2]
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set -l identity $argv[3]
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set -l proxyjump $argv[4]
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set -l proxycommand $argv[5]
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if not type -q ssh-copy-id
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echo "ff ssh: 未找到 ssh-copy-id，跳过公钥复制（可手动执行 ssh-copy-id $target）" >&2
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return 1
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end
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set -l cmd ssh-copy-id
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if test -n "$port"; and test "$port" != 22
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set cmd $cmd -p $port
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end
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if test -n "$identity"
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set cmd $cmd -i $identity
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end
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if test -n "$proxyjump"
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set cmd $cmd -o "ProxyJump=$proxyjump"
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end
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if test -n "$proxycommand"
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set cmd $cmd -o "ProxyCommand=$proxycommand"
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end
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set cmd $cmd $target
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echo "复制公钥: $cmd"
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$cmd
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end
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# `ff ssh a@b.com` / `ff ssh -p 2222 -i key root@host`
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# 确保本地 key -> ssh-copy-id -> 写 ~/.ssh/config.d/<alias>.conf
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function __ff_ssh_add_host
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set -l args
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set -l do_copy 1
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for a in $argv
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if test "$a" = --no-copy
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set do_copy 0
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else
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set args $args $a
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end
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end
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set -l target (__ff_ssh_find_target $args)
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if test -z "$target"
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echo "ff ssh: 未找到 [user@]hostname 参数" >&2
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return 1
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end
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# ssh://user@host:port/path -> user / host / port
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set -l plain (string replace -r '^ssh://' '' -- $target)
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set plain (string replace -r '/.*$' '' -- $plain)
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set -l user ""
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if string match -q '*@*' -- $plain
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set user (string replace -r '@[^@]*$' '' -- $plain)
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end
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set -l hostport (string replace -r '^.*@' '' -- $plain)
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set -l port ""
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if string match -q '*:*' -- $hostport
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set port (string replace -r '^.*:' '' -- $hostport)
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set hostport (string replace -r ':[^:]*$' '' -- $hostport)
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end
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set -l host $hostport
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if test -z "$host"
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echo "ff ssh: 无法解析主机名: $target" >&2
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return 1
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end
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test -n "$port"; or set port (__ff_ssh_argv_value -p $args)
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set -l alias_name $host
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if test -t 0
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read -P "SSH 别名 [$host]: " answer
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if test $status -eq 0; and test -n "$answer"
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set alias_name $answer
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end
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end
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if not string match -qr '^[A-Za-z0-9][A-Za-z0-9._-]*$' -- $alias_name
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echo "ff ssh: 非法别名 '$alias_name'（只允许字母、数字、点、下划线、连字符）" >&2
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return 1
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end
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set -l existing (__ff_ssh_find_alias_file $alias_name)
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if test -n "$existing"
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echo "SSH 别名 '$alias_name' 已存在于 $existing，跳过写入"
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return 0
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end
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# 用 ssh -G 解析最终生效的 HostName/User/Port/Proxy*
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set -l resolved (ssh -G $args 2>/dev/null)
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set -l rhost (printf '%s\n' $resolved | __ff_ssh_gval hostname)
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set -l ruser (printf '%s\n' $resolved | __ff_ssh_gval user)
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set -l rport (printf '%s\n' $resolved | __ff_ssh_gval port)
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set -l proxyjump (printf '%s\n' $resolved | __ff_ssh_gval proxyjump)
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set -l proxycommand (printf '%s\n' $resolved | __ff_ssh_gval proxycommand)
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test -n "$rhost"; or set rhost $host
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test -n "$user"; or set user $ruser
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test -n "$port"; or set port $rport
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test -n "$port"; or set port 22
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test "$proxyjump" = none; and set proxyjump ""
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test "$proxycommand" = none; and set proxycommand ""
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# IdentityFile: ssh -G 会列出所有默认密钥，仅在显式指定时记录
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set -l identity ""
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set -l explicit_identity (__ff_ssh_argv_value -i $args)
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if test -n "$explicit_identity"
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set identity $explicit_identity
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else if string match -q '*IdentityFile*' -- $args
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set identity (printf '%s\n' $resolved | __ff_ssh_gval identityfile)
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end
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if string match -q -- "$HOME/*" "$identity"
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set identity "~/"(string replace -r "^$HOME/" '' -- $identity)
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end
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# ssh-copy-id 也要用同一把密钥（-i 或 -o IdentityFile=），否则会复制默认 key
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set -l copy_identity $explicit_identity
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if test -z "$copy_identity"; and test -n "$identity"
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set copy_identity (string replace -r '^~/' "$HOME/" -- $identity)
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end
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# 先复制公钥，这样写完配置就能直接 ssh
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if test "$do_copy" = 1
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__ff_ssh_ensure_keys
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__ff_ssh_copy_id "$target" "$port" "$copy_identity" "$proxyjump" "$proxycommand"
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or echo "ff ssh: 公钥复制失败，已继续写入配置（可重试: ff ssh add $target）" >&2
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end
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set -l dir "$HOME/.ssh/config.d"
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mkdir -p $dir
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chmod 700 "$HOME/.ssh" $dir
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set -l conf_file "$dir/$alias_name.conf"
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if test -f $conf_file
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cp -p $conf_file "$conf_file.backup."(date +%Y%m%d%H%M%S)
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end
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set -l tmpdir /tmp
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test -n "$TMPDIR"; and set tmpdir $TMPDIR
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set -l tmp (mktemp "$tmpdir/ff-ssh.XXXXXX")
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begin
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printf 'Host %s\n' $alias_name
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printf ' HostName %s\n' $rhost
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if test -n "$user"
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printf ' User %s\n' $user
|
||
end
|
||
printf ' Port %s\n' $port
|
||
if test -n "$identity"
|
||
printf ' IdentityFile %s\n' $identity
|
||
end
|
||
if test -n "$proxyjump"
|
||
printf ' ProxyJump %s\n' $proxyjump
|
||
end
|
||
if test -n "$proxycommand"
|
||
printf ' ProxyCommand %s\n' $proxycommand
|
||
end
|
||
end > $tmp
|
||
chmod 600 $tmp
|
||
mv $tmp $conf_file
|
||
|
||
echo "已写入 SSH 配置: $conf_file"
|
||
echo "以后可直接运行: ssh $alias_name"
|
||
end
|
||
|
||
function __ff_ssh_usage
|
||
echo "用法: ff ssh [init | <ssh 参数> | add <ssh 参数> | run <ssh 参数> | copy <host> <file>... | help]"
|
||
echo ""
|
||
echo " (无参数) / init 确保本地 SSH key 存在，并启用 ~/.ssh/config.d Include"
|
||
echo " add <ssh 参数> 确保本地 key，ssh-copy-id 后写入 ~/.ssh/config.d/<别名>.conf"
|
||
echo " run <ssh 参数> 同 add，写完后立即连接（此时应已免密）"
|
||
echo " <ssh 参数> 裸参数等同 add（例: ff ssh -p 2222 root@1.2.3.4）"
|
||
echo " copy <host> <file> 检查远端 Include，然后 scp 指定配置文件到远端"
|
||
echo " help 显示此帮助"
|
||
echo ""
|
||
echo "选项:"
|
||
echo " --no-copy 只写配置，不执行 ssh-copy-id"
|
||
echo ""
|
||
echo "保留子命令: init / copy / add / run / help（同名主机请用 ssh 直接连接）"
|
||
echo ""
|
||
echo "示例:"
|
||
echo " ff ssh # 初始化本地 key 与 config.d"
|
||
echo " ff ssh a@b.com # 复制公钥 + 添加 Host 配置（交互式确认别名）"
|
||
echo " ff ssh -p 2222 -i ~/.ssh/id_x root@1.2.3.4"
|
||
echo " ff ssh --no-copy a@b.com # 只写配置，不复制公钥"
|
||
echo " ff ssh run a@b.com # 复制公钥 + 写配置并立即连接"
|
||
echo " ff ssh copy mynas 30-hanxi.conf # 推送配置片段到远端"
|
||
end
|
||
|
||
function ff_ssh
|
||
set -l sub (test (count $argv) -ge 1; and echo $argv[1]; or echo init)
|
||
|
||
switch $sub
|
||
case init ''
|
||
__ff_ssh_ensure_keys
|
||
__ff_ssh_ensure_config_d
|
||
case add
|
||
__ff_ssh_ensure_config_d
|
||
__ff_ssh_add_host $argv[2..-1]
|
||
case run
|
||
set -l run_args
|
||
for a in $argv[2..-1]
|
||
test "$a" = --no-copy; and continue
|
||
set run_args $run_args $a
|
||
end
|
||
__ff_ssh_ensure_config_d
|
||
__ff_ssh_add_host $argv[2..-1]; or return 1
|
||
command ssh $run_args
|
||
case copy
|
||
__ff_ssh_copy_remote $argv[2..-1]
|
||
case help -h --help
|
||
__ff_ssh_usage
|
||
case '*'
|
||
# 裸参数与 ssh 原生参数一致：有主机就记录配置，否则透传给 ssh
|
||
if __ff_ssh_find_target $argv >/dev/null
|
||
__ff_ssh_ensure_config_d
|
||
__ff_ssh_add_host $argv
|
||
else
|
||
command ssh $argv
|
||
end
|
||
end
|
||
end
|