fix: OEM plugin issues (#1288)

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

- **New Features**
- The file synchronization tool now requires an explicitly defined
destination and offers a new option to remove remote password files
before syncing. Additionally, synchronization now omits ownership,
group, and permission metadata for smoother transfers.
- The activation flow has been refined, with legacy authentication
modifications removed to deliver a cleaner welcome modal experience.
- A new variable has been introduced to enhance server state management.

- **Refactor**
- Internal configuration adjustments have been made to enhance component
delivery and streamline system actions.

- **Bug Fixes**
- Updated handling of remote user and host parameters in the
synchronization script for improved functionality.
- Simplified the activation code removal process by focusing solely on
the `.set-password.php` file restoration.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

---------

Co-authored-by: Zack Spear <hi@zackspear.com>

plugin/scripts/rsync-activation-dir.sh

@@ -2,24 +2,14 @@
 
 # Bash script to sync local activation code directory to the correct location on the Unraid server's boot device
 
-# Usage: ./sync_files.sh --local-directory <local_directory> [--remote-user <remote_user>] [--remote-host <remote_host>] [--remote-path <remote_path>]
+# Usage: ./sync_files.sh --local-directory <local_directory> --remote-host <remote_host> [--remote-path <remote_path>] [--remove-password]
 
-# Example usage 0
-# ./plugin/scripts/rsync-activation-dir.sh --local-directory /Users/zack/Downloads/activation_code_pdfs_12_19_2024_1436
-
-# Path to store the last used remote host
-state_file="$HOME/.deploy_state"
-
-# Read the last used remote host from the state file
-if [[ -f "$state_file" ]]; then
-    LAST_REMOTE_HOST=$(cat "$state_file")
-else
-    LAST_REMOTE_HOST=""
-fi
+# Example usage:
+# ./plugin/scripts/rsync-activation-dir.sh --local-directory /Users/zack/Downloads/activation_code_pdfs_12_19_2024_1436 --remote-host unraid.local --remove-password
 
 # Default values
-REMOTE_USER="root"
 REMOTE_PATH="/boot/config/activation"
+REMOVE_PASSWORD=false
 
 # Parse named flag parameters
 while [[ $# -gt 0 ]]; do
@@ -28,10 +18,6 @@ while [[ $# -gt 0 ]]; do
             LOCAL_DIRECTORY="$2"
             shift 2
             ;;
-        --remote-user)
-            REMOTE_USER="$2"
-            shift 2
-            ;;
         --remote-host)
             REMOTE_HOST="$2"
             shift 2
@@ -40,32 +26,29 @@ while [[ $# -gt 0 ]]; do
             REMOTE_PATH="$2"
             shift 2
             ;;
+        --remove-password)
+            REMOVE_PASSWORD=true
+            shift
+            ;;
         *)
             echo "Unknown option: $1"
-            echo "Usage: $0 --local-directory <local_directory> [--remote-user <remote_user>] [--remote-host <remote_host>] [--remote-path <remote_path>]"
+            echo "Usage: $0 --local-directory <local_directory> --remote-host <remote_host> [--remote-path <remote_path>] [--remove-password]"
             exit 1
             ;;
     esac
 done
 
-# Validate required parameter
+# Validate required parameters
 if [[ -z "$LOCAL_DIRECTORY" ]]; then
     echo "Error: --local-directory is required."
     exit 1
 fi
 
-# Use last remote host if none is provided
-REMOTE_HOST=${REMOTE_HOST:-$LAST_REMOTE_HOST}
-
-# Check if remote host is provided
 if [[ -z "$REMOTE_HOST" ]]; then
-    echo "Please provide the remote host using --remote-host."
+    echo "Error: --remote-host is required."
     exit 1
 fi
 
-# Save the current remote host to the state file
-echo "$REMOTE_HOST" > "$state_file"
-
 # Check if local directory ends with a slash
 if [[ "$LOCAL_DIRECTORY" != */ ]]; then
     echo "The local directory does not end with a slash."
@@ -75,8 +58,31 @@ if [[ "$LOCAL_DIRECTORY" != */ ]]; then
     fi
 fi
 
+# First, remove any existing password files on the remote server
+ssh "root@$REMOTE_HOST" "rm -rf $REMOTE_PATH/*" || {
+    echo "Error: Failed to clean remote directory"
+    exit 1
+}
+
+# Remove Unraid password file if requested
+if [[ "$REMOVE_PASSWORD" == true ]]; then
+    read -p "Do you want to remove any existing Unraid license keys on the server? (y/n): " REMOVE_KEYS
+    if [[ "$REMOVE_KEYS" =~ ^[Yy]$ ]]; then
+        ssh "root@$REMOTE_HOST" "rm -f /boot/config/*.key" || {
+            echo "Error: Failed to remove Unraid license keys"
+            exit 1
+        }
+        echo "Removed Unraid license keys"
+    fi
+    ssh "root@$REMOTE_HOST" "rm -f /boot/config/passwd /boot/config/shadow /boot/config/super.dat" || {
+        echo "Error: Failed to remove Unraid password file"
+        exit 1
+    }
+    echo "Removed Unraid password file"
+fi
+
 # Execute the rsync command and capture its output
-RSYNC_OUTPUT=$(rsync -av -e ssh "$LOCAL_DIRECTORY" "$REMOTE_USER@$REMOTE_HOST:$REMOTE_PATH" 2>&1)
+RSYNC_OUTPUT=$(rsync -av --no-owner --no-group --no-perms -e ssh "$LOCAL_DIRECTORY" "root@$REMOTE_HOST:$REMOTE_PATH" 2>&1)
 RSYNC_EXIT_CODE=$?
 
 # Output the rsync command's output