encrypt decrypt files and dir script (#399)

Co-authored-by: Chris Titus <contact@christitus.com>

tabs/utils/encrypt_decrypt_tool.sh

@@ -0,0 +1,155 @@
+#!/bin/sh -e
+
+. ../common-script.sh
+# Function to display the menu
+printf "%b\n" "${YELLOW}Ensuring OpenSSL is installed...${RC}"
+
+# Install OpenSSL
+if ! command_exists openssl; then
+    case $PACKAGER in
+        pacman)
+            $ESCALATION_TOOL ${PACKAGER} -Syu --noconfirm openssl
+            ;;
+        apt-get)
+            $ESCALATION_TOOL ${PACKAGER} update && $ESCALATION_TOOL ${PACKAGER} install -y openssl
+            ;;
+        dnf)
+            $ESCALATION_TOOL ${PACKAGER} install -y openssl
+            ;;
+        zypper)
+            $ESCALATION_TOOL ${PACKAGER} install openssl
+            ;;
+        *)
+            printf "%b\n" "${RED}Your Linux distribution is not supported by this script.${RC}"
+            printf "%b\n" "${YELLOW}You can try installing OpenSSL manually:${RC}"
+            echo "1. Refer to your distribution's documentation."
+            ;;
+    esac
+fi
+
+show_menu() {
+    echo "========================================================"
+    echo " File/Directory Encryption/Decryption"
+    echo "========================================================"
+    echo "How to use:-"
+    echo "if you encrypt or decrypt a file include new file name for successful operation"
+    echo "if you encrypt or decrypt a folder include new directory name for successful operation"
+    echo "========================================================"
+    echo "1. Encrypt a file or directory"
+    echo "2. Decrypt a file or directory"
+    echo "3. Exit"
+    echo "========================================================"
+}
+
+# Function to encrypt a file
+encrypt_file() {
+    echo "Enter the path to the file or directory to encrypt:"
+    read -r INPUT_PATH
+
+    if [ ! -e "$INPUT_PATH" ]; then
+        echo "Path does not exist!"
+        return
+    fi
+
+    echo "Enter the path for the encrypted file or directory:"
+    read -r OUTPUT_PATH
+
+    echo "Enter the encryption password:"
+    read -s -r PASSWORD
+
+    if [ -d "$INPUT_PATH" ]; then
+        # Encrypt each file in the directory
+        find "$INPUT_PATH" -type f | while read -r FILE; do
+            REL_PATH="${FILE#$INPUT_PATH/}"
+            OUTPUT_FILE="$OUTPUT_PATH/$REL_PATH.enc"
+            mkdir -p "$(dirname "$OUTPUT_FILE")"
+            openssl enc -aes-256-cbc -salt -pbkdf2 -in "$FILE" -out "$OUTPUT_FILE" -k "$PASSWORD"
+            if [ $? -eq 0 ]; then
+                echo "Encrypted: $OUTPUT_FILE"
+            else
+                echo "Failed to encrypt: $FILE"
+            fi
+        done
+    else
+        # Encrypt a single file
+        if [ -d "$OUTPUT_PATH" ]; then
+            echo "Output path must be a file for single file encryption."
+            return
+        fi
+        mkdir -p "$(dirname "$OUTPUT_PATH")"
+        openssl enc -aes-256-cbc -salt -pbkdf2 -in "$INPUT_PATH" -out "$OUTPUT_PATH" -k "$PASSWORD"
+        if [ $? -eq 0 ]; then
+            echo "Encrypted: $OUTPUT_PATH"
+        else
+            echo "Failed to encrypt: $INPUT_PATH"
+        fi
+    fi
+}
+
+# Function to decrypt a file
+decrypt_file() {
+    echo "Enter the path to the file or directory to decrypt:"
+    read -r INPUT_PATH
+
+    if [ ! -e "$INPUT_PATH" ]; then
+        echo "Path does not exist!"
+        return
+    fi
+
+    echo "Enter the path for the decrypted file or directory:"
+    read -r OUTPUT_PATH
+
+    echo "Enter the decryption password:"
+    read -s -r PASSWORD
+
+    if [ -d "$INPUT_PATH" ]; then
+        # Decrypt each file in the directory
+        find "$INPUT_PATH" -type f -name '*.enc' | while read -r FILE; do
+            REL_PATH="${FILE#$INPUT_PATH/}"
+            OUTPUT_FILE="$OUTPUT_PATH/${REL_PATH%.enc}"
+            mkdir -p "$(dirname "$OUTPUT_FILE")"
+            openssl enc -aes-256-cbc -d -pbkdf2 -in "$FILE" -out "$OUTPUT_FILE" -k "$PASSWORD"
+            if [ $? -eq 0 ]; then
+                echo "Decrypted: $OUTPUT_FILE"
+            else
+                echo "Failed to decrypt: $FILE"
+            fi
+        done
+    else
+        # Decrypt a single file
+        if [ -d "$OUTPUT_PATH" ]; then
+            echo "Output path must be a file for single file decryption."
+            return
+        fi
+        mkdir -p "$(dirname "$OUTPUT_PATH")"
+        openssl enc -aes-256-cbc -d -pbkdf2 -in "$INPUT_PATH" -out "$OUTPUT_PATH" -k "$PASSWORD"
+        if [ $? -eq 0 ]; then
+            echo "Decrypted: $OUTPUT_PATH"
+        else
+            echo "Failed to decrypt: $INPUT_PATH"
+        fi
+    fi
+}
+
+main(){
+    clear
+    while true; do
+        show_menu
+        echo "Enter your choice:"
+        read -r CHOICE
+
+        case $CHOICE in
+            1) encrypt_file ;;
+            2) decrypt_file ;;
+            3) echo "Exiting..."; exit 0 ;;
+            *) echo "Invalid choice. Please try again." ;;
+        esac
+
+        echo "Press [Enter] to continue..."
+        read -r
+    done
+}
+
+checkEnv
+checkEscalationTool
+main

tabs/utils/tab_data.toml

@@ -15,6 +15,10 @@ name = "Numlock on Startup"
 description = "This utility is designed to configure auto enabling of numlock on boot"
 script = "numlock.sh"
 
+[[data]]
+name = "Crypto tool"
+script = "encrypt_decrypt_tool.sh"
+
 [[data]]
 name = "Ollama"
 description = "This utility is designed to manage ollama in your system"