Implement secure installer system with backup and verification #2
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- Add Anchoring + Decoy pricing in Pro tab ($3.99 → $2.99, decoy option)
- Implement Loss Aversion for security warnings ("Don't risk unpatched apps")
- Add Social Proof elements (user count, testimonials)
- Create Zeigarnik Effect progress indicators with completion tension
- Set smart defaults (auto-update ON) using Default Effect
- Enhance error states with Actor-Observer bias (situational framing)
- Add Authority signals (industry-standard verification)
- Improve Privacy tab with Reciprocity bias ("helps improve reliability")
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
- Add SecurityChecks for codesign verification and quarantine handling - Create Installer for ZIP/DMG/PKG with automatic backup before install - Implement Rollback system for one-click version restoration - Include cleanup utilities for managing backup storage - All installs verify signatures before replacing apps 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
Summary of ChangesHello @adityash8, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed! This pull request significantly enhances the application's core functionality by introducing a secure and user-friendly installation and update mechanism. It provides robust safeguards through automatic backups, code signature verification, and a rollback system, ensuring application integrity and user peace of mind. Additionally, the UI has been refined with psychological design principles to improve user engagement, convey security importance, and optimize conversion rates for premium features, all while maintaining user privacy through anonymous telemetry. Highlights
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| let dateA = (try? a.resourceValues(forKeys: [.creationDateKey]).creationDate) ?? .distantPast | ||
| let dateB = (try? b.resourceValues(forKeys: [.creationDateKey]).creationDate) ?? .distantPast | ||
| return dateA > dateB | ||
| }.first?.appendingPathComponent("\(bundleID).app") |
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Bug: Backup Filename Mismatch Causes Rollback Failure
Rollback fails because SecurityChecks.backup saves apps by their original filename, but Rollback.latestBackup expects them to be named after the bundle ID. This mismatch prevents finding backed-up applications.
Additional Locations (1)
| Button("Clear All Data") { | ||
| Button("Clear Cache (\(cacheSize))") { | ||
| // TODO: Implement data clearing | ||
| cacheSize = "0 MB" |
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Bug: Cache Clear UI Mismatch
The "Clear Cache" button in PrivacySettingsView updates the UI to "0 MB" but doesn't actually clear any cached data, which misleads users into thinking the cache has been cleared.
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| static func track(_ name: String, props: [String: Any] = [:]) { | ||
| guard UserDefaults.standard.bool(forKey: "telemetry_enabled") else { return } |
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Bug: Telemetry Setting Mismatch
The Telemetry.track() function checks for the "telemetry_enabled" key in UserDefaults, but the SettingsView uses "telemetryEnabled" for the user's preference. This key mismatch means telemetry always remains disabled, regardless of the user's setting.
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| // Copy backup to Applications | ||
| try FileManager.default.copyItem(at: backupURL, to: currentAppURL) |
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Bug: App Replacement Risks Data Loss
The app replacement and backup logic uses an unsafe "remove then copy" pattern. This means the existing application or previous backup is removed before the new version is copied. If the copy operation fails, the original item is permanently lost, potentially leaving the user without an app or a recoverable backup.
Additional Locations (2)
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Code Review
This pull request introduces a comprehensive system for installing, backing up, and rolling back applications, along with security checks for code signing and quarantine attributes. The implementation is well-structured, with clear separation of concerns into different files like Installer, Rollback, and SecurityChecks. The UI has also been updated to improve user engagement.
My review has identified a few critical and high-severity issues. The most critical ones relate to error handling in the backup process, which could lead to data loss, and a bug in the rollback logic that will prevent it from working correctly. There are also high-severity issues in the security check functions where errors are silenced, potentially leading to incorrect security assessments. I've also included some medium-severity suggestions to improve robustness and performance. Addressing these points will significantly improve the reliability and security of the new installer system.
| // Create backup first | ||
| let currentAppPath = "/Applications/\(name).app" | ||
| if FileManager.default.fileExists(atPath: currentAppPath) { | ||
| _ = try? SecurityChecks.backup(appPath: currentAppPath, bundleID: bundleID, version: currentVersion) |
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The backup operation uses try?, which silences any errors. If SecurityChecks.backup fails, the installation proceeds without a successful backup. This could lead to data loss if the subsequent installation fails, as there would be no backup to roll back to. The backup operation should be allowed to throw an error to halt the installation process if it fails.
| _ = try? SecurityChecks.backup(appPath: currentAppPath, bundleID: bundleID, version: currentVersion) | |
| try SecurityChecks.backup(appPath: currentAppPath, bundleID: bundleID, version: currentVersion) |
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| if let appPath = currentAppPath { | ||
| let fullPath = "/Applications/\(appPath)" | ||
| _ = try? SecurityChecks.backup(appPath: fullPath, bundleID: bundleID, version: currentVersion) |
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Similar to installZIP, the backup operation here uses try?, which silences any errors. If SecurityChecks.backup fails, the installation proceeds without a successful backup. This could lead to data loss if the subsequent installation fails. The backup operation should be allowed to throw an error to halt the installation process if it fails.
| _ = try? SecurityChecks.backup(appPath: fullPath, bundleID: bundleID, version: currentVersion) | |
| try SecurityChecks.backup(appPath: fullPath, bundleID: bundleID, version: currentVersion) |
| let dateA = (try? a.resourceValues(forKeys: [.creationDateKey]).creationDate) ?? .distantPast | ||
| let dateB = (try? b.resourceValues(forKeys: [.creationDateKey]).creationDate) ?? .distantPast | ||
| return dateA > dateB | ||
| }.first?.appendingPathComponent("\(bundleID).app") |
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The path to the backed-up application is constructed using the bundleID. However, the backup logic in SecurityChecks.backup preserves the original application's filename (e.g., AppName.app), which is not the same as the bundle ID. This mismatch will cause latestBackup(bundleID:) to return an incorrect URL, and consequently, the rollback will fail to find the backup. To fix this, after finding the latest version directory, you should list its contents to find the actual .app bundle within it instead of assuming its name is \(bundleID).app.
| try? task.run() | ||
| task.waitUntilExit() | ||
| return task.terminationStatus == 0 |
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The try? task.run() call silently ignores potential errors during process execution, for example, if the codesign command is not found. If task.run() throws, the process is never started, and task.terminationStatus remains 0, causing the function to incorrectly return true. For a security-critical function, it's crucial to handle errors from task.run() explicitly.
| try? task.run() | |
| task.waitUntilExit() | |
| return task.terminationStatus == 0 | |
| do { | |
| try task.run() | |
| task.waitUntilExit() | |
| return task.terminationStatus == 0 | |
| } catch { | |
| return false | |
| } |
| try? task.run() | ||
| task.waitUntilExit() | ||
| return task.terminationStatus == 0 |
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Similar to verifyCodeSign, try? task.run() is used here, which can mask errors if xattr fails to launch. If task.run() throws, task.terminationStatus will be 0, and this function will incorrectly return true. The error should be handled to ensure the function's reliability.
| try? task.run() | |
| task.waitUntilExit() | |
| return task.terminationStatus == 0 | |
| do { | |
| try task.run() | |
| task.waitUntilExit() | |
| return task.terminationStatus == 0 | |
| } catch { | |
| return false | |
| } |
| try? task.run() | ||
| task.waitUntilExit() | ||
| return task.terminationStatus == 0 |
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Similar to the other functions in this file, try? task.run() is used here, which can mask errors if xattr fails to launch. This could lead to a failure to remove the quarantine attribute while the function incorrectly reports success. If task.run() throws, task.terminationStatus will be 0, and this function will incorrectly return true.
do {
try task.run()
task.waitUntilExit()
return task.terminationStatus == 0
} catch {
return false
}| let apps = try? FileManager.default.contentsOfDirectory(atPath: "/Applications") | ||
| let currentAppPath = apps?.first { $0.hasSuffix(".app") && Bundle(path: "/Applications/\($0)")?.bundleIdentifier == bundleID } |
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Finding the current application path by iterating through all files in /Applications, checking for a .app suffix, and then initializing a Bundle for each to check its bundleIdentifier is inefficient. This can be slow if the user has many applications. Additionally, this only checks the system-wide /Applications folder and not the user's ~/Applications folder. A more efficient approach might be to use Spotlight's metadata APIs (NSMetadataQuery) to find an application by its bundle ID directly.
| private static func run(_ bin: String, _ args: [String]) throws -> (Int32, String) { | ||
| let process = Process() | ||
| process.executableURL = URL(fileURLWithPath: bin) | ||
| process.arguments = args | ||
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| let pipe = Pipe() | ||
| process.standardOutput = pipe | ||
| process.standardError = pipe | ||
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| try process.run() | ||
| process.waitUntilExit() | ||
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| let data = pipe.fileHandleForReading.readDataToEndOfFile() | ||
| let output = String(data: data, encoding: .utf8) ?? "" | ||
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| return (process.terminationStatus, output) | ||
| } |
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The run helper function combines standardOutput and standardError into a single pipe. While convenient, this can make it difficult to parse the output of a command if it also writes to standard error. For example, hdiutil might print warnings to stderr that could interfere with parsing the mount point from stdout. It would be more robust to capture stdout and stderr separately. This would require changing the function to return stderr as well and updating the call sites.
| enum Telemetry { | ||
| static func configure(enabled: Bool, apiKey: String) { | ||
| if enabled { | ||
| PostHogSDK.shared.setup(apiKey: apiKey, host: URL(string:"https://app.posthog.com")!) |
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Force-unwrapping the URL with ! can lead to a crash if the URL string is ever invalid. Although it's a constant here, it's safer to handle the optional gracefully, for instance by using guard let and logging an error if the URL is invalid.
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Summary
Test plan
🤖 Generated with Claude Code