Check if app group container is readable

[dnicolson]

User description

This reimplements the changes in #2420 without the code suggestion (15038ea).

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PR Type

Bug fix

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Description

• Replace directory existence check with readable file check

• Simplify app group container validation logic

• Use FileManager's isReadableFile method for better reliability

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Diagram Walkthrough

flowchart LR
  A["Check container path"] --> B["Old: fileExists + isDirectory"]
  A --> C["New: isReadableFile"]
  B --> D["Less reliable"]
  C --> E["More reliable"]

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File Walkthrough

Relevant files

Bug fix

RomDatabase.swift Refactor app group container validation method                      PVLibrary/Sources/PVLibrary/Database/Realm Database/RomDatabase.swift Replaced fileExists(atPath:isDirectory:) check with isReadableFile(atPath:) method Simplified validation logic by removing unnecessary ObjCBool variable Reordered variable declarations for better code organization Changed conditional structure from guard statement to if-else block +4/-4

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[qodo-code-review]

PR Compliance Guide 🔍

Below is a summary of compliance checks for this PR:

Security Compliance
🟢	No security concerns identified No security vulnerabilities detected by AI analysis. Human verification advised for critical code.
Ticket Compliance
⚪	🎫 No ticket provided Create ticket/issue
Codebase Duplication Compliance
⚪	Codebase context is not defined Follow the guide to enable codebase context checks.
Custom Compliance
🟢	Generic: Meaningful Naming and Self-Documenting Code Objective: Ensure all identifiers clearly express their purpose and intent, making code self-documenting Status: Passed Learn more about managing compliance generic rules or creating your own custom rules
	Generic: Secure Error Handling Objective: To prevent the leakage of sensitive system information through error messages while providing sufficient detail for internal debugging. Status: Passed Learn more about managing compliance generic rules or creating your own custom rules
	Generic: Secure Logging Practices Objective: To ensure logs are useful for debugging and auditing without exposing sensitive information like PII, PHI, or cardholder data. Status: Passed Learn more about managing compliance generic rules or creating your own custom rules
	Generic: Security-First Input Validation and Data Handling Objective: Ensure all data inputs are validated, sanitized, and handled securely to prevent vulnerabilities Status: Passed Learn more about managing compliance generic rules or creating your own custom rules
⚪	Generic: Comprehensive Audit Trails Objective: To create a detailed and reliable record of critical system actions for security analysis and compliance. Status: Missing audit logs: The change introduces a permission-sensitive filesystem readability check without adding any logging for success/failure, which may hinder auditability of critical actions. Referred Code if fm.isReadableFile(atPath: path) { return true } else { return false Learn more about managing compliance generic rules or creating your own custom rules
	Generic: Robust Error Handling and Edge Case Management Objective: Ensure comprehensive error handling that provides meaningful context and graceful degradation Status: No error context: The new readability check returns false without capturing or surfacing context (e.g., why the path is unreadable), which may complicate debugging edge cases. Referred Code if fm.isReadableFile(atPath: path) { return true } else { return false } Learn more about managing compliance generic rules or creating your own custom rules

Compliance status legend

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🟡 - Partial Compliant
🔴 - Not Compliant
⚪ - Requires Further Human Verification
🏷️ - Compliance label

[qodo-code-review]

PR Code Suggestions ✨

Explore these optional code suggestions:

Category	Suggestion	Impact
Possible issue	Restore check for directory type Restore the check to ensure the container path is a directory, as removing it could cause runtime errors if other code assumes the path is a directory. PVLibrary/Sources/PVLibrary/Database/Realm Database/RomDatabase.swift [45-49] -if fm.isReadableFile(atPath: path) { - return true -} else { - return false +var isDirectory: ObjCBool = false +if fm.fileExists(atPath: path, isDirectory: &isDirectory), isDirectory.boolValue { + return fm.isReadableFile(atPath: path) } +return false Apply / Chat Suggestion importance[1-10]: 9 __ Why: This suggestion correctly identifies a potential regression where a crucial check for a directory was removed, which could lead to runtime errors if the path is a file instead of the expected directory.	High
General	Simplify boolean return statement Simplify the if-else block by directly returning the result of the boolean expression fm.isReadableFile(atPath: path). PVLibrary/Sources/PVLibrary/Database/Realm Database/RomDatabase.swift [45-49] -if fm.isReadableFile(atPath: path) { - return true -} else { - return false -} +return fm.isReadableFile(atPath: path) Apply / Chat Suggestion importance[1-10]: 4 __ Why: The suggestion correctly identifies a verbose if/else statement that can be simplified, which improves code conciseness and readability.	Low
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