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Merge pull request #13 from ADORSYS-GIS/develop
feat: add uninstall script
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,169 @@ | ||
| #!/bin/bash | ||
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| # Check if we're running in bash; if not, adjust behavior | ||
| if [ -n "$BASH_VERSION" ]; then | ||
| set -euo pipefail | ||
| else | ||
| set -eu | ||
| fi | ||
|
|
||
| # Determine OS-specific paths | ||
| OS_NAME=$(uname) | ||
| if [[ $OS_NAME == "Linux" ]]; then | ||
| OSSEC_CONF_PATH="/var/ossec/etc/ossec.conf" | ||
| elif [[ $OS_NAME == "Darwin" ]]; then | ||
| OSSEC_CONF_PATH="/Library/Ossec/etc/ossec.conf" | ||
| else | ||
| error_message "Unsupported operating system." | ||
| exit 1 | ||
| fi | ||
|
|
||
| # Define text formatting | ||
| RED='\033[0;31m' | ||
| GREEN='\033[0;32m' | ||
| YELLOW='\033[1;33m' | ||
| BLUE='\033[1;34m' | ||
| BOLD='\033[1m' | ||
| NORMAL='\033[0m' | ||
|
|
||
| # Function for logging with timestamp | ||
| log() { | ||
| local LEVEL="$1" | ||
| shift | ||
| local MESSAGE="$*" | ||
| local TIMESTAMP | ||
| TIMESTAMP=$(date +"%Y-%m-%d %H:%M:%S") | ||
| echo -e "${TIMESTAMP} ${LEVEL} ${MESSAGE}" | ||
| } | ||
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| # Logging helpers | ||
| info_message() { | ||
| log "${BLUE}${BOLD}[INFO]${NORMAL}" "$*" | ||
| } | ||
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| warn_message() { | ||
| log "${YELLOW}${BOLD}[WARNING]${NORMAL}" "$*" | ||
| } | ||
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| error_message() { | ||
| log "${RED}${BOLD}[ERROR]${NORMAL}" "$*" | ||
| } | ||
|
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| success_message() { | ||
| log "${GREEN}${BOLD}[SUCCESS]${NORMAL}" "$*" | ||
| } | ||
|
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| # Check if a command exists | ||
| command_exists() { | ||
| command -v "$1" >/dev/null 2>&1 | ||
| } | ||
|
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||
| # Ensure root privileges, either directly or through sudo | ||
| maybe_sudo() { | ||
| if [ "$(id -u)" -ne 0 ]; then | ||
| if command_exists sudo; then | ||
| sudo "$@" | ||
| else | ||
| error_message "This script requires root privileges. Please run with sudo or as root." | ||
| exit 1 | ||
| fi | ||
| else | ||
| "$@" | ||
| fi | ||
| } | ||
|
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||
| sed_alternative() { | ||
| if command_exists gsed; then | ||
| maybe_sudo gsed "$@" | ||
| else | ||
| maybe_sudo sed "$@" | ||
| fi | ||
| } | ||
|
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||
| # Function to remove directories and files | ||
| remove_snort_dirs_files() { | ||
| local dirs=("$@") | ||
| for dir in "${dirs[@]}"; do | ||
| if [ -d "$dir" ]; then | ||
| maybe_sudo rm -rf "$dir" | ||
| info_message "Removed directory $dir" | ||
| fi | ||
| done | ||
| } | ||
|
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||
| remove_snort_files() { | ||
| local files=("$@") | ||
| for file in "${files[@]}"; do | ||
| if [ -f "$file" ]; then | ||
| maybe_sudo rm -f "$file" | ||
| info_message "Removed file $file" | ||
| fi | ||
| done | ||
| } | ||
|
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||
| # Function to revert changes in ossec.conf | ||
| revert_ossec_conf() { | ||
| local ossec_conf="$1" | ||
| local snort_tag="<!-- snort -->" | ||
|
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||
| if maybe_sudo [ -f "$ossec_conf" ]; then | ||
| if maybe_sudo grep -q "$snort_tag" "$ossec_conf"; then | ||
| sed_alternative -i "/$snort_tag/,/<\/localfile>/d" "$ossec_conf" | ||
| info_message "Reverted changes in $ossec_conf" | ||
| else | ||
| info_message "No Snort-related changes found in $ossec_conf. Skipping" | ||
| fi | ||
| else | ||
| warn_message "The file $ossec_conf no longer exists. Skipping" | ||
| fi | ||
| } | ||
|
|
||
| # Function to uninstall Snort on macOS | ||
| uninstall_snort_macos() { | ||
| info_message "Uninstalling Snort on macOS" | ||
| brew uninstall snort || warn_message "Snort was not installed via Homebrew." | ||
|
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||
| remove_snort_dirs_files \ | ||
| "/usr/local/etc/rules" \ | ||
| "/usr/local/etc/so_rules" \ | ||
| "/usr/local/etc/lists" \ | ||
| "/var/log/snort" | ||
|
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| remove_snort_files \ | ||
| "/usr/local/etc/rules/local.rules" \ | ||
| "/usr/local/etc/lists/default.blocklist" | ||
|
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| revert_ossec_conf "$OSSEC_CONF_PATH" | ||
| success_message "Snort uninstalled on macOS" | ||
| } | ||
|
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||
| # Function to uninstall Snort on Linux | ||
| uninstall_snort_linux() { | ||
| info_message "Uninstalling Snort on Linux" | ||
| if command -v apt >/dev/null 2>&1; then | ||
| sudo apt-get purge -y snort && sudo apt-get autoremove -y | ||
| else | ||
| warn_message "This script supports only Debian-based systems for uninstallation." | ||
| fi | ||
|
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| remove_snort_dirs_files \ | ||
| "/etc/snort/" \ | ||
| "/var/log/snort" | ||
|
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| revert_ossec_conf "$OSSEC_CONF_PATH" | ||
| success_message "Snort uninstalled on Linux" | ||
| } | ||
|
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| # Main logic: uninstall Snort based on the operating system | ||
| case "$OS_NAME" in | ||
| Linux) | ||
| uninstall_snort_linux | ||
| ;; | ||
| Darwin) | ||
| uninstall_snort_macos | ||
| ;; | ||
| *) | ||
| error_message "Unsupported OS: $OS_NAME" | ||
| exit 1 | ||
| ;; | ||
| esac |