#!/bin/bash # # Fix DropboxHelperInstaller # # Revised - 2025.09.15 # # This script fixes issues with Dropbox displaying prompts for administrator privileges # after installation. It extracts the Dropbox Helper Tool installer from each Dropbox # installation to ensure compatibility and proper authorization. # # The script: # # 1. Validates Dropbox application exists and contains the helper installer # 2. Creates the DropboxHelperTools directory if needed # 3. Extracts the helper installer with proper permissions # 4. Sets SUID permissions for elevated privilege operations # # Copyright (c) 2025 University of Utah Student Computing Labs. # All Rights Reserved. # # Permission to use, copy, modify, and distribute this software and # its documentation for any purpose and without fee is hereby granted, # provided that the above copyright notice appears in all copies and # that both that copyright notice and this permission notice appear # in supporting documentation, and that the name of The University # of Utah not be used in advertising or publicity pertaining to # distribution of the software without specific, written prior # permission. This software is supplied as is without expressed or # implied warranties of any kind. set -euo pipefail # Exit on error, undefined vars, pipe failures ################################## # Global Variables ################################## readonly SCRIPT_NAME="$(basename "$0")" readonly LOG_PREFIX="$(date '+%Y-%m-%d %H:%M:%S') - ${SCRIPT_NAME}" # Dropbox paths - configurable section readonly DROPBOX_APP_PATH="/Applications/Dropbox.app" readonly DROPBOX_HELPER_INSTALLER_SOURCE_PATH="${DROPBOX_APP_PATH}/Contents/Resources/DropboxHelperInstaller.tgz" readonly DROPBOX_HELPER_TOOLS_TARGET_DIR_PATH="/Library/DropboxHelperTools" readonly DROPBOX_HELPER_INSTALLER_TARGET_PATH="${DROPBOX_HELPER_TOOLS_TARGET_DIR_PATH}/DropboxHelperInstaller" ################################## # Functions ################################## # Logging function log() { local level="$1" shift echo "${LOG_PREFIX} - ${level}: $*" } # Validate Dropbox application exists and is properly installed validate_dropbox_installation() { log "INFO" "Validating Dropbox installation..." if [[ ! -d "$DROPBOX_APP_PATH" ]]; then log "ERROR" "Dropbox application not found at: $DROPBOX_APP_PATH" log "ERROR" "Please install Dropbox before running this script" return 1 fi if [[ ! -f "$DROPBOX_HELPER_INSTALLER_SOURCE_PATH" ]]; then log "ERROR" "DropboxHelperInstaller.tgz not found in Dropbox bundle" log "ERROR" "Expected location: $DROPBOX_HELPER_INSTALLER_SOURCE_PATH" log "ERROR" "This may indicate a corrupted or incomplete Dropbox installation" return 1 fi # Verify the tar file is valid if ! tar -tzf "$DROPBOX_HELPER_INSTALLER_SOURCE_PATH" >/dev/null 2>&1; then log "ERROR" "DropboxHelperInstaller.tgz appears to be corrupted" return 1 fi log "SUCCESS" "Dropbox installation validated successfully" return 0 } # Create target directory with proper permissions create_target_directory() { log "INFO" "Creating DropboxHelperTools directory..." if [[ ! -d "$DROPBOX_HELPER_TOOLS_TARGET_DIR_PATH" ]]; then if mkdir -p "$DROPBOX_HELPER_TOOLS_TARGET_DIR_PATH"; then log "SUCCESS" "Created directory: $DROPBOX_HELPER_TOOLS_TARGET_DIR_PATH" else log "ERROR" "Failed to create directory: $DROPBOX_HELPER_TOOLS_TARGET_DIR_PATH" return 1 fi else log "INFO" "Directory already exists: $DROPBOX_HELPER_TOOLS_TARGET_DIR_PATH" fi return 0 } # Extract the helper installer extract_helper_installer() { log "INFO" "Extracting DropboxHelperInstaller from Dropbox bundle..." # Remove existing installer if present (force fresh extraction) if [[ -f "$DROPBOX_HELPER_INSTALLER_TARGET_PATH" ]]; then log "INFO" "Removing existing installer for fresh extraction" rm -f "$DROPBOX_HELPER_INSTALLER_TARGET_PATH" fi # Extract without verbose output to reduce log noise if tar -zxf "$DROPBOX_HELPER_INSTALLER_SOURCE_PATH" -C "$DROPBOX_HELPER_TOOLS_TARGET_DIR_PATH"; then log "SUCCESS" "Successfully extracted DropboxHelperInstaller" else log "ERROR" "Failed to extract DropboxHelperInstaller" return 1 fi # Verify extraction was successful if [[ ! -f "$DROPBOX_HELPER_INSTALLER_TARGET_PATH" ]]; then log "ERROR" "DropboxHelperInstaller not found after extraction" log "ERROR" "Expected location: $DROPBOX_HELPER_INSTALLER_TARGET_PATH" return 1 fi return 0 } # Set proper permissions on the helper installer set_permissions() { log "INFO" "Setting proper permissions on DropboxHelperInstaller..." # Set ownership to root:wheel for both directory and installer if chown root:wheel "$DROPBOX_HELPER_TOOLS_TARGET_DIR_PATH" "$DROPBOX_HELPER_INSTALLER_TARGET_PATH"; then log "SUCCESS" "Set ownership to root:wheel" else log "ERROR" "Failed to set ownership" return 1 fi # Set SUID permissions (04511) # 0 = no special modes for group/others # 4 = SUID (set user ID on execution) # 5 = read + execute for owner # 1 = execute only for group # 1 = execute only for others if chmod 04511 "$DROPBOX_HELPER_INSTALLER_TARGET_PATH"; then log "SUCCESS" "Set installer permissions to 04511 (SUID enabled)" else log "ERROR" "Failed to set installer permissions" return 1 fi # Verify permissions were set correctly local perms perms=$(stat -f "%Sp %u:%g" "$DROPBOX_HELPER_INSTALLER_TARGET_PATH" 2>/dev/null || echo "unknown") log "INFO" "Final permissions: $perms" return 0 } # Verify the installation was successful verify_installation() { log "INFO" "Verifying DropboxHelperInstaller installation..." # Check file exists and is executable if [[ ! -x "$DROPBOX_HELPER_INSTALLER_TARGET_PATH" ]]; then log "ERROR" "DropboxHelperInstaller is not executable" return 1 fi # Check SUID bit is set if [[ ! -u "$DROPBOX_HELPER_INSTALLER_TARGET_PATH" ]]; then log "ERROR" "SUID bit not set on DropboxHelperInstaller" return 1 fi # Check ownership local owner owner=$(stat -f "%u:%g" "$DROPBOX_HELPER_INSTALLER_TARGET_PATH" 2>/dev/null || echo "unknown") if [[ "$owner" != "0:0" ]]; then log "ERROR" "Incorrect ownership on DropboxHelperInstaller (expected 0:0, got $owner)" return 1 fi log "SUCCESS" "DropboxHelperInstaller installation verified successfully" return 0 } ################################## # Main Execution ################################## main() { log "INFO" "=== Starting Dropbox Helper Installer Fix ===" log "INFO" "Script version: 2025.09.15" log "INFO" "Running as: $(whoami)" # Validate we're running as root if [[ $EUID -ne 0 ]]; then log "ERROR" "This script must be run as root (required for SUID permissions)" log "ERROR" "Please run with sudo or as root user" exit 1 fi # Execute main steps if ! validate_dropbox_installation; then exit 1 fi if ! create_target_directory; then exit 1 fi if ! extract_helper_installer; then exit 1 fi if ! set_permissions; then exit 1 fi if ! verify_installation; then exit 1 fi log "SUCCESS" "=== Dropbox Helper Installer Fix Completed Successfully ===" log "INFO" "Dropbox should no longer prompt for administrator privileges" exit 0 } # Execute main function main "$@"

April 2024 – MacAdmins Meeting Archived Presentations and Slides Online

19 Apr April 2024 – MacAdmins Meeting Archived Presentations and Slides Online

Posted at 10:58h in Administration, Automation, Client Management, Documentation, Enterprise, Event, Higher Education, Information Technology, Jamf Pro, Mac, Management, Security by Richard Glaser 0 Comments

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April 17th, 2024 – University of Utah, MacAdmins Meeting Archived Presentations and Slides Online

The University of Utah, MacAdmins Meeting is held monthly virtually on the 3rd Wednesday of each month at 11 AM Mountain Time. Presentations cover Apple technology and integration in a heterogeneous university enterprise environment. This month’s meeting will be held on Wed, April 17th, 2024 at 11 AM MT and we will provide live broadcasts and archives that will be made available 2-3 days after the meeting.

Patch Management – Matthew Mitchell, jamf

Video – To view the archived presentation video, click here.
Slides – To view the archived presentation slides, click here.

Privilege Elevation using Jamf Connect – Sean Rabbitt, jamf

Video – To view the archived presentation video, click here.
Slides – To view the archived presentation slides, click here.

Archive & Live Presentation(s)

Archives of the presentations will be available on this web page.

Future Presentation & Suggestions?

If you have any suggestions or are interested in presenting at a future meeting, please use the Contact Us option to let us know.

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