mirror of
https://github.com/Gu1llaum-3/sshm.git
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404 lines
10 KiB
Bash
Executable File
404 lines
10 KiB
Bash
Executable File
#!/usr/bin/env bash
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###############################################################################
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# Copyright 2024 Guillaume Archambault
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law ou agreed to in writing, software
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# distributed under the License est distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OU CONDITIONS OF ANY KIND, either express ou implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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###############################################################################
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set -eo pipefail; [[ $TRACE ]] && set -x
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readonly VERSION="2.0.0"
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readonly CONFIG_DIR="${HOME}/.config/sshm"
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readonly DEFAULT_CONFIG="${HOME}/.ssh/config"
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readonly CURRENT_CONTEXT_FILE="${CONFIG_DIR}/.current_context"
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mkdir -p "$CONFIG_DIR"
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if [[ -f "$CURRENT_CONTEXT_FILE" ]]; then
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CONFIG_FILE=$(cat "$CURRENT_CONTEXT_FILE")
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else
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CONFIG_FILE="$DEFAULT_CONFIG"
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fi
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ssh_manager_version() {
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echo "ssh_manager $VERSION"
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}
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ssh_manager_help() {
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echo "Usage: ssh_manager command <command-specific-options>"
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echo
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echo "Commands:"
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cat<<EOF | column -t -s $'\t'
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list List SSH hosts and prompt for connection
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connect <number|name> Connect to SSH host by number or name
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ping <name> Ping an SSH host to check availability
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view <name> Check configuration of host
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delete <name> Delete an SSH host from the configuration
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add Add an SSH host to the configuration
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context list List available contexts
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context use <name> Use a specific context
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context create <name> Create a new context
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context delete <name> Delete an existing context
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help Displays help
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version Displays the current version
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EOF
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}
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ssh_manager_list() {
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local config_file="$CONFIG_FILE"
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echo -e "\nList of SSH hosts:"
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grep -E '^Host ' "$config_file" | awk '{print $2}' | grep -v '^#' | sort | nl
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echo -ne "\nEnter the number or name of the host (or press Enter to exit): "
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read host
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if [[ -z "$host" ]]; then
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echo "No host specified, exiting."
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exit 0
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fi
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ssh_manager_connect "$config_file" "$host"
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}
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ssh_manager_connect() {
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local config_file="$1"
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local host="$2"
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if [[ -z "$host" ]]; then
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echo "Error: please provide a host number or name." 1>&2
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exit 1
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fi
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if [[ "$host" =~ ^[0-9]+$ ]]; then
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local host_name
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host_name=$(grep -E '^Host ' "$config_file" | awk '{print $2}' | grep -v '^#' | sed -n "${host}p")
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if [ -n "$host_name" ]]; then
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ssh "$host_name"
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else
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echo "Invalid number." 1>&2
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exit 2
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fi
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else
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ssh "$host"
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fi
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}
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ssh_manager_ping() {
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local config_file="$1"
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local host="$2"
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if [[ -z "$host" ]]; then
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echo "Error: please provide a host name." 1>&2
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exit 1
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fi
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local hostname
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hostname=$(awk '/^Host '"$host"'$/,/^$/' "$config_file" | awk '/HostName/ {print $2}')
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if [[ -z "$hostname" ]]; then
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echo "Error: HostName not found for host $host in SSH configuration." 1>&2
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exit 1
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fi
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if ping -c 1 -W 1 "$hostname" &> /dev/null; then
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echo -e "\033[32m$host ($hostname) is available\033[0m"
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else
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echo -e "\033[31m$host ($hostname) is unavailable\033[0m"
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fi
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}
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ssh_manager_view() {
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local config_file="$1"
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local host="$2"
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if [[ -z "$host" ]]; then
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echo "Error: please provide a host name." 1>&2
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exit 1
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fi
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local host_info
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host_info=$(awk '/^Host '"$host"'$/,/^$/' "$config_file")
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if [[ -z "$host_info" ]]; then
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echo "Error: host not found in SSH configuration." 1>&2
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exit 1
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fi
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echo -e "\nInformation for host $host:\n"
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echo "$host_info"
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}
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ssh_manager_delete() {
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local config_file="$1"
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local host="$2"
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if [[ -z "$host" ]]; then
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echo "Error: please provide a host name." 1>&2
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exit 1
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fi
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local tmp_file=$(mktemp)
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sed '/^Host '"$host"'$/,/^$/d' "$config_file" > "$tmp_file"
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mv "$tmp_file" "$config_file"
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echo "Host $host removed from SSH configuration."
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}
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ssh_manager_add() {
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local config_file="$1"
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local host="$2"
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local hostname
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local user
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local port
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local identity_file
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# Request necessary information
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if [[ -z "$host" ]]; then
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read -p "Enter host name: " host
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if [[ -z "$host" ]]; then
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echo "Error: host name cannot be empty." 1>&2
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exit 1
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fi
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fi
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read -p "Enter HostName (IP address or domain): " hostname
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if [[ -z "$hostname" ]]; then
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echo "Error: HostName cannot be empty." 1>&2
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exit 1
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fi
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read -p "Enter user name (default: $(whoami)): " user
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user=${user:-$(whoami)}
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read -p "Enter SSH port (default: 22): " port
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port=${port:-22}
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read -p "Enter path to SSH key (default: ~/.ssh/id_rsa): " identity_file
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identity_file=${identity_file:-~/.ssh/id_rsa}
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# Add the new configuration to the file
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{
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echo ""
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echo "Host $host"
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echo " HostName $hostname"
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echo " User $user"
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if [[ "$port" -ne 22 ]]; then
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echo " Port $port"
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fi
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if [[ "$identity_file" != ~/.ssh/id_rsa ]]; then
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echo " IdentityFile $identity_file"
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fi
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} >> "$config_file"
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echo "Configuration for host $host added successfully."
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}
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ssh_manager_edit() {
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local config_file="$1"
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local host="$2"
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if [[ -z "$host" ]]; then
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echo "Error: please provide a host name." 1>&2
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exit 1
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fi
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local host_info
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host_info=$(awk '/^Host '"$host"'$/,/^$/' "$config_file")
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if [[ -z "$host_info" ]]; then
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echo "Error: host not found in SSH configuration." 1>&2
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exit 1
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fi
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# Extract current values
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local current_hostname=$(echo "$host_info" | awk '/HostName/ {print $2}')
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local current_user=$(echo "$host_info" | awk '/User/ {print $2}')
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local current_port=$(echo "$host_info" | awk '/Port/ {print $2}')
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local current_identity_file=$(echo "$host_info" | awk '/IdentityFile/ {print $2}')
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# Prompt for new values, defaulting to current values if no input is given
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read -p "HostName [$current_hostname]: " new_hostname
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new_hostname=${new_hostname:-$current_hostname}
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read -p "User [$current_user]: " new_user
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new_user=${new_user:-$current_user}
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read -p "Port [${current_port:-22}]: " new_port
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new_port=${new_port:-${current_port:-22}}
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read -p "IdentityFile [${current_identity_file:-~/.ssh/id_rsa}]: " new_identity_file
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new_identity_file=${new_identity_file:-${current_identity_file:-~/.ssh/id_rsa}}
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# Delete the old configuration
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ssh_manager_delete "$config_file" "$host"
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# Add the new configuration
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{
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echo ""
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echo "Host $host"
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echo " HostName $new_hostname"
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echo " User $new_user"
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if [[ "$new_port" -ne 22 ]]; then
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echo " Port $new_port"
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fi
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if [[ "$new_identity_file" != ~/.ssh/id_rsa ]]; then
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echo " IdentityFile $new_identity_file"
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fi
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} >> "$config_file"
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echo "Configuration for host $host updated successfully."
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}
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context_list() {
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local current_context
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current_context=$(cat "$CURRENT_CONTEXT_FILE" 2>/dev/null || echo "$DEFAULT_CONFIG")
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echo "Available contexts:"
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if [[ "$current_context" == "$DEFAULT_CONFIG" ]]; then
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echo "* default"
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else
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echo " default"
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fi
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for context in "$CONFIG_DIR"/*; do
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if [[ -f "$context" ]]; then # Vérifie que c'est bien un fichier existant
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local context_name
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context_name=$(basename "$context")
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if [[ "$CONFIG_DIR/$context_name" == "$current_context" ]]; then
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echo "* $context_name"
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else
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echo " $context_name"
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fi
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fi
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done
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}
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context_use() {
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local context="$1"
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if [[ -z "$context" ]]; then
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echo "Error: please provide a context name." 1>&2
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exit 1
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fi
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if [[ "$context" == "default" ]]; then
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echo "$DEFAULT_CONFIG" > "$CURRENT_CONTEXT_FILE"
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echo "Switched to default context."
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elif [[ ! -f "$CONFIG_DIR/$context" ]]; then
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echo "Error: context '$context' does not exist." 1>&2
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exit 1
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else
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echo "$CONFIG_DIR/$context" > "$CURRENT_CONTEXT_FILE"
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echo "Switched to context '$context'."
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fi
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}
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context_create() {
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local context="$1"
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if [[ -z "$context" ]]; then
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echo "Error: please provide a context name." 1>&2
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exit 1
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fi
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if [[ -f "$CONFIG_DIR/$context" ]]; then
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echo "Error: context '$context' already exists." 1>&2
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exit 1
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fi
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touch "$CONFIG_DIR/$context"
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echo "Context '$context' created."
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}
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context_delete() {
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local context="$1"
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if [[ -z "$context" ]]; then
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echo "Error: please provide a context name." 1>&2
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exit 1
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fi
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if [[ ! -f "$CONFIG_DIR/$context" ]]; then
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echo "Error: context '$context' does not exist." 1>&2
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exit 1
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fi
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rm -f "$CONFIG_DIR/$context"
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echo "Context '$context' deleted."
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if [[ "$(cat "$CURRENT_CONTEXT_FILE")" == "$CONFIG_DIR/$context" ]]; then
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echo "$DEFAULT_CONFIG" > "$CURRENT_CONTEXT_FILE"
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echo "Switched to default context."
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fi
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}
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ssh_manager_main() {
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local config_file="$CONFIG_FILE"
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local command="$1"
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shift
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if [[ -z $command ]]; then
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ssh_manager_version
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echo
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ssh_manager_help
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exit 0
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fi
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case "$command" in
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"list")
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ssh_manager_list "$config_file"
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;;
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"connect")
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ssh_manager_connect "$config_file" "$@"
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;;
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"ping")
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ssh_manager_ping "$config_file" "$@"
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;;
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"view")
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ssh_manager_view "$config_file" "$@"
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;;
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"delete")
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ssh_manager_delete "$config_file" "$@"
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;;
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"add")
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ssh_manager_add "$config_file" "$@"
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;;
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"edit")
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ssh_manager_edit "$config_file" "$@"
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;;
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"context")
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local subcommand="$1"
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shift
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case "$subcommand" in
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"list")
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context_list "$@"
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;;
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"use")
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context_use "$@"
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;;
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"create")
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context_create "$@"
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;;
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"delete")
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context_delete "$@"
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;;
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*)
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echo "Error: invalid context subcommand." 1>&2
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ssh_manager_help
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exit 3
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;;
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esac
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;;
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"version")
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ssh_manager_version
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;;
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"help")
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ssh_manager_help
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;;
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*)
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ssh_manager_help 1>&2
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exit 3
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esac
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}
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if [[ "$0" == "$BASH_SOURCE" ]]; then
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ssh_manager_main "$@"
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fi
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