Implement async download utility with progress tracking and verification #7
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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")
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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>
- Implement SparkleHints for SUFeedURL discovery from app bundles - Add GitHub API client for releases with rate limiting and auth - Create RepoHints mapping for 30+ popular apps to GitHub repos - Add Brew cask integration for Homebrew-managed apps - Include repository validation and fallback discovery patterns 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
- Replace BGTaskScheduler with macOS LaunchAgent for better reliability - Add install/uninstall functionality with proper plist generation - Include status checking and schedule updating capabilities - Configure for low-priority background execution - Handle loading/unloading with proper error handling 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
- Implement MAS updates detection using mas command line tool - Add deep link integration for App Store updates page - Include MAS app categorization and receipt validation - Support automatic mas CLI installation via Homebrew - Add App Store ID extraction from app bundles 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
- Add privacy-first heuristic summarization with keyword prioritization - Implement CVE extraction and security severity classification - Enhanced security content detection (malware, breaches, privileges) - Priority ranking: Security > Bugs > Performance > Generic - Support for both local processing and OpenAI fallback 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
- Add actor-based Downloader with concurrent download management - Include SHA256 checksum verification and size validation - Support progress tracking with formatted byte counters - Handle HTTP errors, timeouts, and cancellation gracefully - Automatic retry logic and file integrity checks 🤖 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 introduces a robust and feature-rich asynchronous download utility, laying the foundation for a comprehensive application update management system. It integrates with various update sources like Homebrew Cask, GitHub Releases, Sparkle, and the Mac App Store, providing secure installation, rollback capabilities, and scheduled background updates. Furthermore, it significantly enhances the user experience through psychologically-informed UI/UX changes, aiming to improve user engagement and retention. Highlights
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Code Review
This pull request introduces a significant amount of new functionality for an asynchronous download and update utility. The core logic for downloading, installing, and managing updates is well-structured, but there are several critical issues related to security, correctness, and performance that must be addressed. Specifically, there are vulnerabilities in how shell commands are executed and how code signatures are verified, major performance concerns with file hashing, and fundamental bugs in download cancellation and task management. I've provided detailed comments and suggestions to resolve these issues.
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| static func latest(owner: String, repo: String, token: String? = nil) async throws -> Release { | ||
| var request = URLRequest(url: URL(string: "https://api.github.com/repos/\(owner)/\(repo)/releases/latest")!) |
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Force-unwrapping the URL with ! can cause a runtime crash if the owner or repo strings contain characters that make the URL string invalid. You should construct the URL safely and handle the potential failure, for example by throwing an error.
guard let url = URL(string: "https://api.github.com/repos/\(owner)/\(repo)/releases/latest") else {
throw URLError(.badURL)
}
var request = URLRequest(url: url)| static func verifyCodeSign(_ appPath: String) -> Bool { | ||
| let task = Process() | ||
| task.executableURL = URL(fileURLWithPath: "/usr/bin/codesign") | ||
| task.arguments = ["--verify", "--deep", "--strict", appPath] | ||
| try? task.run() | ||
| task.waitUntilExit() | ||
| return task.terminationStatus == 0 | ||
| } |
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The verifyCodeSign function ignores errors from task.run(). If the codesign executable cannot be launched (e.g., not found), the function will incorrectly return true because task.terminationStatus will default to 0. This bypasses the signature check, which is a critical security vulnerability. You must handle the error from task.run() and return false in that case.
static func verifyCodeSign(_ appPath: String) -> Bool {
let task = Process()
task.executableURL = URL(fileURLWithPath: "/usr/bin/codesign")
task.arguments = ["--verify", "--deep", "--strict", appPath]
do {
try task.run()
} catch {
return false
}
task.waitUntilExit()
return task.terminationStatus == 0
}| 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 backup application is constructed using the bundleID, but the backup is saved using the application's file name (e.g., AppName.app). This will cause latestBackup to fail to locate the backup. You should instead find the file with the .app extension inside the latest version directory.
| private func calculateSHA256(for url: URL) throws -> String { | ||
| let data = try Data(contentsOf: url) | ||
| let hash = SHA256.hash(data: data) | ||
| return hash.compactMap { String(format: "%02x", $0) }.joined() | ||
| } |
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The current implementation of calculateSHA256 reads the entire file into memory using Data(contentsOf:). This can lead to excessive memory consumption and potential crashes when dealing with large files. A more memory-efficient approach is to read the file in chunks and update the hasher incrementally.
private func calculateSHA256(for url: URL) throws -> String {
let handle = try FileHandle(forReadingFrom: url)
defer { try? handle.close() }
var hasher = SHA256()
while autoreleasepool(invoking: {
let chunk = handle.readData(ofLength: 1024 * 1024) // 1MB chunks
if chunk.isEmpty {
return false
}
hasher.update(data: chunk)
return true
}) {}
let hash = hasher.finalize()
return hash.compactMap { String(format: "%02x", $0) }.joined()
}| func cancelDownload(_ url: URL) { | ||
| activeDownloads.removeValue(forKey: url) | ||
| } |
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The cancelDownload function only removes the DownloadTask from the activeDownloads dictionary but fails to cancel the underlying URLSessionDownloadTask. The download will continue in the background, consuming network and system resources. To properly implement cancellation, you need to store a reference to the URLSessionTask and call its cancel() method.
| let cvePattern = #"cve-\d{4}-\d{4,7}"# | ||
| let cveRegex = try? NSRegularExpression(pattern: cvePattern, options: .caseInsensitive) |
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The regular expression for CVEs, cve-\d{4}-\d{4,7}, is compiled using try?. If the pattern were invalid, cveRegex would become nil, and the function would silently fail to extract any CVEs. While the current pattern is valid, for robustness, you might consider using try and handling the error, or at least asserting that the regex compiles during development, as a typo could break this security feature.
| struct Release: Decodable { | ||
| let tag_name: String | ||
| let name: String? | ||
| let body: String? | ||
| let draft: Bool | ||
| let prerelease: Bool | ||
| let published_at: String? | ||
| let assets: [Asset] | ||
| } | ||
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| struct Asset: Decodable { | ||
| let name: String | ||
| let browser_download_url: String | ||
| let content_type: String | ||
| let size: Int | ||
| } |
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The property names in Release and Asset use snake_case, which is not conventional in Swift. Please use camelCase for property names and use CodingKeys to map them to the JSON fields. This improves adherence to Swift's API Design Guidelines.
struct Release: Decodable {
let tagName: String
let name: String?
let body: String?
let draft: Bool
let prerelease: Bool
let publishedAt: String?
let assets: [Asset]
enum CodingKeys: String, CodingKey {
case name, body, draft, prerelease, assets
case tagName = "tag_name"
case publishedAt = "published_at"
}
}
struct Asset: Decodable {
let name: String
let browserDownloadURL: String
let contentType: String
let size: Int
enum CodingKeys: String, CodingKey {
case name, size
case browserDownloadURL = "browser_download_url"
case contentType = "content_type"
}
}|
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| // This is a heuristic - we can't directly read the badge count | ||
| // but we can check if the App Store is running and infer updates | ||
| return appStoreApp != nil ? 0 : 0 |
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The expression appStoreApp != nil ? 0 : 0 will always evaluate to 0, regardless of whether the App Store application is running. This makes the check for appStoreApp pointless and means the function will never indicate that updates might be available. This fallback logic is currently ineffective.
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| let appInfo = AppInfo( | ||
| name: name, | ||
| bundleIdentifier: "mas.\(appID)", |
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Using a synthetic bundle identifier like mas.\(appID) could cause issues if this AppInfo object is used in parts of the system that expect a valid, real bundle identifier (e.g., for finding the app on disk or looking up its properties). It would be more robust to find the actual application on the system using its name or app ID and retrieve its real bundle identifier.
| @State private var cacheSize: String = "2.1 GB" | ||
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| var body: some View { | ||
| Form { | ||
| Section("Data Collection") { | ||
| Toggle("Help improve Auto-Up", isOn: $telemetryEnabled) | ||
| Section("Help Improve Auto-Up") { | ||
| Toggle("Share anonymous insights", isOn: $telemetryEnabled) | ||
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| VStack(alignment: .leading, spacing: 8) { | ||
| Text("When enabled, Auto-Up collects anonymous usage data to help improve the app:") | ||
| Text("• Update success/failure rates") | ||
| Text("• App scanning performance") | ||
| Text("• Feature usage statistics") | ||
| if telemetryEnabled { | ||
| HStack { | ||
| Image(systemName: "checkmark.circle.fill") | ||
| .foregroundColor(.green) | ||
| Text("Thanks! This helps us improve reliability") | ||
| .foregroundColor(.green) | ||
| } | ||
| .font(.caption) | ||
| } | ||
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| Text("Anonymous success rates & performance only") | ||
| .fontWeight(.medium) | ||
| Text("• Update success/failure rates (helps fix bugs)") | ||
| Text("• Scanning performance (speeds up detection)") | ||
| Text("• Crash prevention data (keeps you stable)") | ||
| Text("") | ||
| Text("No personal information or app lists are collected.") | ||
| Text("🔒 No app lists or personal info collected") | ||
| .foregroundColor(.blue) | ||
| Text("Data stored locally unless you opt in") | ||
| .foregroundColor(.secondary) | ||
| } | ||
| .font(.caption) | ||
| .foregroundColor(.secondary) | ||
| } | ||
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| Section("Local Data") { | ||
| Section("Local Data Storage") { | ||
| VStack(alignment: .leading, spacing: 8) { | ||
| Text("All app data is stored locally on your Mac:") | ||
| Text("• SQLite database in ~/Library/Application Support/AutoUp") | ||
| Text("Your data stays on your Mac:") | ||
| Text("• ~/Library/Application Support/AutoUp") | ||
| Text("• Update history and preferences") | ||
| Text("• Cached app versions for rollback") | ||
| Text("• Backup versions for rollback (\(cacheSize))") | ||
| } | ||
| .font(.caption) | ||
| .foregroundColor(.secondary) | ||
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| Button("Clear All Data") { | ||
| Button("Clear Cache (\(cacheSize))") { | ||
| // TODO: Implement data clearing | ||
| cacheSize = "0 MB" | ||
| } |
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The cacheSize is a hardcoded @State variable, and the 'Clear Cache' button only updates this local state without performing any actual file operations. This UI is currently a placeholder and needs to be implemented to calculate the real cache size from the filesystem and to actually delete the cached files when the button is pressed.
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Summary
Test plan
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