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winapps/bin/winapps
Rohan Barar 38d5874d64 Updated .pre-commit-config.yaml
2024-07-17 00:07:49 +10:00

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#!/usr/bin/env bash
### GLOBAL CONSTANTS ###
# ANSI ESCAPE SEQUENCES
readonly ERROR_TEXT="\033[1;41;37m" # Bold + White + Red Background
readonly CLEAR_TEXT="\033[0m" # Clear
# ERROR CODES
readonly EC_MISSING_CONFIG=1
readonly EC_MISSING_FREERDP=2
readonly EC_NOT_IN_GROUP=3
readonly EC_VM_NOT_RUNNING=4
readonly EC_VM_NO_IP=5
readonly EC_VM_BAD_PORT=6
readonly EC_UNSUPPORTED_APP=7
# PATHS
readonly APPDATA_PATH="${HOME}/.local/share/winapps"
readonly SYS_APP_PATH="/usr/local/share/winapps"
readonly LASTRUN_PATH="${APPDATA_PATH}/lastrun"
readonly LOG_PATH="${APPDATA_PATH}/winapps.log"
readonly CONFIG_PATH="${HOME}/.config/winapps/winapps.conf"
# shellcheck disable=SC2155 # Silence warnings regarding masking return values through simultaneous declaration and assignment.
readonly SCRIPT_DIR_PATH="$(cd "$(dirname "${BASH_SOURCE[0]}")" &>/dev/null && pwd)"
# OTHER
readonly VM_NAME="RDPWindows"
readonly RDP_PORT=3389
# shellcheck disable=SC2155 # Silence warnings regarding masking return values through simultaneous declaration and assignment.
readonly RUN="$(date)-${RANDOM}"
### GLOBAL VARIABLES ###
# WINAPPS CONFIGURATION FILE
RDP_USER=""
RDP_PASS=""
RDP_DOMAIN=""
RDP_IP=""
RDP_FLAGS=""
FREERDP_COMMAND=""
RDP_SCALE=100
MULTIMON="false"
DEBUG="true"
MULTI_FLAG=""
### FUNCTIONS ###
# Name: 'waThrowExit'
# Role: Throw an error message and exit the script.
function waThrowExit() {
# Declare variables.
local ERR_CODE="$1"
# Throw error.
case "$ERR_CODE" in
"$EC_MISSING_CONFIG")
# Missing WinApps configuration file.
dprint "ERROR: MISSING WINAPPS CONFIGURATION FILE. EXITING."
echo -e "${ERROR_TEXT}ERROR: MISSING WINAPPS CONFIGURATION FILE.${CLEAR_TEXT}"
echo "Please create a WinApps configuration file at '${CONFIG_PATH}'".
;;
"$EC_MISSING_FREERDP")
dprint "ERROR: FREERDP VERSION 3 IS NOT INSTALLED. EXITING."
echo -e "${ERROR_TEXT}ERROR: FREERDP VERSION 3 IS NOT INSTALLED.${CLEAR_TEXT}"
;;
"$EC_NOT_IN_GROUP")
dprint "ERROR: USER NOT PART OF REQUIRED GROUPS. EXITING."
echo -e "${ERROR_TEXT}ERROR: USER NOT PART OF REQUIRED GROUPS.${CLEAR_TEXT}"
echo "Please run:"
echo " sudo usermod -a -G libvirt $(whoami)"
echo " sudo usermod -a -G kvm $(whoami)"
;;
"$EC_VM_NOT_RUNNING")
dprint "ERROR: VM NOT RUNNING. EXITING."
echo -e "${ERROR_TEXT}ERROR: VM NOT RUNNING.${CLEAR_TEXT}"
echo "Please ensure the Windows VM is powered on."
;;
"$EC_VM_NO_IP")
dprint "ERROR: VM UNREACHABLE. EXITING."
echo -e "${ERROR_TEXT}ERROR: VM UNREACHABLE.${CLEAR_TEXT}"
echo "Please ensure the Windows VM is assigned an IP address."
;;
"$EC_VM_BAD_PORT")
dprint "ERROR: RDP PORT CLOSED. EXITING."
echo -e "${ERROR_TEXT}ERROR: RDP PORT CLOSED.${CLEAR_TEXT}"
echo "Please ensure Remote Desktop is correctly configured on the Windows VM."
;;
"$EC_UNSUPPORTED_APP")
dprint "ERROR: APPLICATION NOT FOUND. EXITING."
echo -e "${ERROR_TEXT}ERROR: APPLICATION NOT FOUND.${CLEAR_TEXT}"
echo "Please ensure the program is correctly configured as an officially supported application."
;;
esac
# Provide generic advice.
echo "Check the WinApps project README for more information."
# Terminate the script.
echo "Exiting with status '${ERR_CODE}'."
exit "$ERR_CODE"
}
# Name: 'dprint'
# Role: Conditionally print debug messages to a log file, creating it if it does not exist.
function dprint() {
[ "$DEBUG" = "true" ] && echo "[$RUN] $1" >>"$LOG_PATH"
}
# Name: 'waLoadConfig'
# Role: Load the variables within the WinApps configuration file.
function waLoadConfig() {
# Load WinApps configuration file.
if [ -f "$CONFIG_PATH" ]; then
# shellcheck source=/dev/null # Exclude WinApps configuration file from being checked by ShellCheck.
source "$CONFIG_PATH"
else
waThrowExit $EC_MISSING_CONFIG
fi
# Update 'MULTI_FLAG' based on 'MULTIMON'.
MULTI_FLAG=$([[ $MULTIMON == "true" ]] && echo "/multimon" || echo "+span")
# Append additional flags or parameters to FreeRDP.
[[ -n $RDP_FLAGS ]] && FREERDP_COMMAND="${FREERDP_COMMAND} ${RDP_FLAGS}"
}
# Name: 'waLastRun'
# Role: Determine the last time this script was run.
function waLastRun() {
# Declare variables.
local LAST_RUN_UNIX_TIME=0
local CURR_RUN_UNIX_TIME=0
# Store the time this script was run last as a unix timestamp.
if [ -f "$LASTRUN_PATH" ]; then
LAST_RUN_UNIX_TIME=$(stat -t -c %Y "$LASTRUN_PATH")
dprint "LAST_RUN: ${LAST_RUN_UNIX_TIME}"
fi
# Update the file modification time with the current time.
touch "$LASTRUN_PATH"
CURR_RUN_UNIX_TIME=$(stat -t -c %Y "$LASTRUN_PATH")
dprint "THIS_RUN: ${CURR_RUN_UNIX_TIME}"
}
function waGetFreeRDPCommand() {
# Attempt to set a FreeRDP command if the command variable is empty.
if [ -z "$FREERDP_COMMAND" ]; then
# Check for 'xfreerdp'.
if command -v xfreerdp &>/dev/null; then
# Check FreeRDP major version is 3 or greater.
FREERDP_MAJOR_VERSION=$(xfreerdp --version | head -n 1 | grep -o -m 1 '\b[0-9]\S*' | cut -d'.' -f1)
if [[ $FREERDP_MAJOR_VERSION =~ ^[0-9]+$ ]] && ((FREERDP_MAJOR_VERSION >= 3)); then
FREERDP_COMMAND="xfreerdp"
fi
# Check for 'xfreerdp3'.
elif command -v xfreerdp3 &>/dev/null; then
# Check FreeRDP major version is 3 or greater.
FREERDP_MAJOR_VERSION=$(xfreerdp3 --version | head -n 1 | grep -o -m 1 '\b[0-9]\S*' | cut -d'.' -f1)
if [[ $FREERDP_MAJOR_VERSION =~ ^[0-9]+$ ]] && ((FREERDP_MAJOR_VERSION >= 3)); then
FREERDP_COMMAND="xfreerdp3"
fi
fi
# Check for FreeRDP Flatpak (fallback option).
if [ -z "$FREERDP_COMMAND" ]; then
if command -v flatpak &>/dev/null; then
if flatpak list --columns=application | grep -q "^com.freerdp.FreeRDP$"; then
# Check FreeRDP major version is 3 or greater.
FREERDP_MAJOR_VERSION=$(flatpak list --columns=application,version | grep "^com.freerdp.FreeRDP" | awk '{print $2}' | cut -d'.' -f1)
if [[ $FREERDP_MAJOR_VERSION =~ ^[0-9]+$ ]] && ((FREERDP_MAJOR_VERSION >= 3)); then
FREERDP_COMMAND="flatpak run --command=xfreerdp com.freerdp.FreeRDP"
fi
fi
fi
fi
fi
if command -v "$FREERDP_COMMAND" &>/dev/null || [ "$FREERDP_COMMAND" = "flatpak run --command=xfreerdp com.freerdp.FreeRDP" ]; then
dprint "Using FreeRDP command '${FREERDP_COMMAND}'."
else
waThrowExit "$EC_MISSING_FREERDP"
fi
}
# Name: 'waCheckGroupMembership'
# Role: Ensures the current user is part of the required groups.
function waCheckGroupMembership() {
# Identify groups the current user belongs to.
# shellcheck disable=SC2155 # Silence warnings regarding masking return values through simultaneous declaration and assignment.
local USER_GROUPS=$(groups "$(whoami)")
if ! (echo "$USER_GROUPS" | grep -q -E "\blibvirt\b") || ! (echo "$USER_GROUPS" | grep -q -E "\bkvm\b"); then
waThrowExit "$EC_NOT_IN_GROUP"
fi
}
# Name: 'waCheckVMRunning'
# Role: Throw an error if the Windows VM is not running.
function waCheckVMRunning() {
! virsh list --state-running --name | grep -q "^${VM_NAME}$" && waThrowExit "$EC_VM_NOT_RUNNING"
}
# Name: 'waCheckVMContactable'
# Role: Assesses whether the Windows VM can be contacted.
function waCheckVMContactable() {
# Declare variables.
local VM_MAC="" # Stores the MAC address of the Windows VM.
# Obtain Windows VM IP Address
if [ -z "$RDP_IP" ]; then
VM_MAC=$(virsh domiflist "$VM_NAME" | grep -oE "([0-9A-Fa-f]{2}[:-]){5}([0-9A-Fa-f]{2})") # VM MAC address.
RDP_IP=$(arp -n | grep "$VM_MAC" | grep -oE "([0-9]{1,3}\.){3}[0-9]{1,3}") # VM IP address.
[ -z "$RDP_IP" ] && waThrowExit "$EC_VM_NO_IP"
fi
# Check for an open RDP port.
timeout 5 nc -z "$RDP_IP" "$RDP_PORT" &>/dev/null || waThrowExit "$EC_VM_BAD_PORT"
}
function waRunCommand() {
# Declare variables.
local ICON=""
local FILE_PATH=""
# Run option.
if [ "$1" = "windows" ]; then
# Open Windows VM.
dprint "WINDOWS"
$FREERDP_COMMAND \
/d:"$RDP_DOMAIN" \
/u:"$RDP_USER" \
/p:"$RDP_PASS" \
/scale:"$RDP_SCALE" \
+dynamic-resolution \
+auto-reconnect \
+home-drive \
/wm-class:"Microsoft Windows" \
/v:"$RDP_IP" &>/dev/null &
elif [ "$1" = "manual" ]; then
# Open specified application.
dprint "MANUAL: ${2}"
$FREERDP_COMMAND \
/cert:tofu \
/d:"$RDP_DOMAIN" \
/u:"$RDP_USER" \
/p:"$RDP_PASS" \
/scale:"$RDP_SCALE" \
+auto-reconnect \
+clipboard \
+home-drive \
-wallpaper \
+dynamic-resolution \
"$MULTI_FLAG" \
/app:program:"$2" \
/v:"$RDP_IP" &>/dev/null &
else
# Script summoned from right-click menu with officially supported application name plus/minus a file path.
if [ -e "${SCRIPT_DIR_PATH}/../apps/${1}/info" ]; then
# shellcheck source=/dev/null # Exclude this file from being checked by ShellCheck.
source "${SCRIPT_DIR_PATH}/../apps/${1}/info"
ICON="${SCRIPT_DIR_PATH}/../apps/${1}/icon.svg"
elif [ -e "${APPDATA_PATH}/apps/${1}/info" ]; then
# shellcheck source=/dev/null # Exclude this file from being checked by ShellCheck.
source "${APPDATA_PATH}/apps/${1}/info"
ICON="${APPDATA_PATH}/apps/${1}/icon.svg"
elif [ -e "${SYS_APP_PATH}/apps/${1}/info" ]; then
# shellcheck source=/dev/null # Exclude this file from being checked by ShellCheck.
source "${SYS_APP_PATH}/apps/${1}/info"
ICON="${SYS_APP_PATH}/apps/${1}/icon.svg"
else
waThrowExit "$EC_UNSUPPORTED_APP"
fi
# Check if a file path was specified, and pass this to the application.
if [ -z "$2" ]; then
# No file path specified.
$FREERDP_COMMAND \
/d:"$RDP_DOMAIN" \
/u:"$RDP_USER" \
/p:"$RDP_PASS" \
/scale:"$RDP_SCALE" \
+auto-reconnect \
+clipboard \
+home-drive \
-wallpaper \
+dynamic-resolution \
"$MULTI_FLAG" \
/wm-class:"$FULL_NAME" \
/app:program:"$WIN_EXECUTABLE",icon:"$ICON",name:"$FULL_NAME" \
/v:"$RDP_IP" &>/dev/null &
else
# Convert path from UNIX to Windows style.
FILE_PATH=$(echo "$2" | sed 's|'"${HOME}"'|\\\\tsclient\\home|;s|/|\\|g;s|\\|\\\\|g')
dprint "UNIX_FILE_PATH: ${2}"
dprint "WINDOWS_FILE_PATH: ${FILE_PATH}"
$FREERDP_COMMAND \
/cert:tofu \
/d:"$RDP_DOMAIN" \
/u:"$RDP_USER" \
/p:"$RDP_PASS" \
/scale:"$RDP_SCALE" \
+auto-reconnect \
+clipboard \
+home-drive \
-wallpaper \
+dynamic-resolution \
"$MULTI_FLAG" \
/wm-class:"$FULL_NAME" \
/app:program:"$WIN_EXECUTABLE",icon:"$ICON",name:$"FULL_NAME",cmd:\""$FILE_PATH"\" \
/v:"$RDP_IP" &>/dev/null &
fi
fi
}
### MAIN LOGIC ###
#set -x # Enable for debugging.
dprint "START"
dprint "SCRIPT_DIR: ${SCRIPT_DIR_PATH}"
dprint "SCRIPT_ARGS: ${*}"
dprint "HOME_DIR: ${HOME}"
mkdir -p "$APPDATA_PATH"
waLastRun
waLoadConfig
waGetFreeRDPCommand
waCheckGroupMembership
waCheckVMRunning
waCheckVMContactable
waRunCommand "$@"
dprint "END"
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