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Navideck / universal_ble

A cross-platform Android/iOS/macOS/Windows/Linux/Web Bluetooth Low Energy (BLE) plugin for Flutter
https://pub.dev/packages/universal_ble
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Fix wrong manufacturer data in release mode #24

Closed fotiDim closed 1 month ago

fotiDim commented 1 month ago

User description

Fixes https://github.com/Navideck/universal_ble/issues/21

Type

bug_fix

Description

Changes walkthrough

Relevant files
Bug fix
universal_ble_plugin.cpp
Refactor Manufacturer Data Parsing with Improved Error Handling
windows/src/universal_ble_plugin.cpp
  • Refactored parseManufacturerDataHead to improve readability and
    efficiency.
  • Removed outdated fixme comment related to REG_DWORD_BIG_ENDIAN
    compatibility.
  • Added error handling for cases where manufacturer data parsing fails.
    		•  +15/-20 

    ✨ PR-Agent usage: Comment /help on the PR to get a list of all available PR-Agent tools and their descriptions

    codiumai-pr-agent[bot] commented 1 month ago

    PR Description updated to latest commit (https://github.com/Navideck/universal_ble/commit/0b10f0917abd67b6e116062e2077c99da2baa508)

    codiumai-pr-agent[bot] commented 1 month ago

    PR Review

    ⏱️ Estimated effort to review [1-5] 2, because the changes are localized to a single function with a clear purpose, simplifying its logic and improving error handling. The diff is not large, and the modifications are straightforward, making it easier to review.
    🧪 Relevant tests No
    🔍 Possible issues Error Handling: While the addition of error handling for the parsing function is a positive change, logging just the device ID might not be sufficient for debugging purposes. Consider logging more context or the nature of the parsing error.
    Endianness Handling: The comment about ensuring proper endianness has been removed, and the code does not explicitly handle endianness anymore. If handling endianness is still required for compatibility reasons, this might introduce a regression. Ensure that the current implementation correctly handles endianness across all target platforms.
    🔒 Security concerns No
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    codiumai-pr-agent[bot] commented 1 month ago

    PR Code Suggestions

    CategorySuggestions                                                                                                                                                       
    Best practice
    Replace direct usage of std::cout with a logging library for error messages. ___ **Consider using a logging library or mechanism instead of directly using std::cout for
    error logging. This approach allows for more flexible and configurable logging (e.g., log
    levels, log destinations). It also improves the maintainability and readability of the
    code.** [windows/src/universal_ble_plugin.cpp [491]](https://github.com/Navideck/universal_ble/pull/24/files#diff-c744a38517e9dcb9177126ffd1392b9decc2b53e55772d4270f4387a4f4c9357R491-R491) ```diff -std::cout << "Error in parsing manufacturer data: " << deviceId << std::endl; +Logger::error("Error in parsing manufacturer data: ", deviceId); ```
    Use specific exception handling instead of a generic catch-all. ___ **Instead of using a generic catch-all exception handler, consider catching specific
    exceptions that could be thrown by the operations within the try block. This approach
    allows for more precise error handling and debugging.** [windows/src/universal_ble_plugin.cpp [491]](https://github.com/Navideck/universal_ble/pull/24/files#diff-c744a38517e9dcb9177126ffd1392b9decc2b53e55772d4270f4387a4f4c9357R491-R491) ```diff -} catch (...) { +} catch (const std::exception& e) { ```
    Enhancement
    Add thread safety to the parseManufacturerDataHead function with mutexes. ___ **To ensure thread safety and avoid potential data races, consider protecting the shared
    resources or operations within the parseManufacturerDataHead function with mutexes,
    especially if this function can be accessed from multiple threads concurrently.** [windows/src/universal_ble_plugin.cpp [477]](https://github.com/Navideck/universal_ble/pull/24/files#diff-c744a38517e9dcb9177126ffd1392b9decc2b53e55772d4270f4387a4f4c9357R477-R477) ```diff +std::mutex mtx; // Define mutex std::vector parseManufacturerDataHead(BluetoothLEAdvertisement advertisement, std::string deviceId) { + std::lock_guard lock(mtx); // Use the mutex to protect shared resources ```
    Verify the success of the insert operation on the result vector. ___ **Consider checking the success of the insert operation on the result vector. While
    std::vector::insert is generally safe, verifying the operation's success or catching
    potential exceptions can prevent unforeseen issues, especially with custom data types or
    in constrained environments.** [windows/src/universal_ble_plugin.cpp [488]](https://github.com/Navideck/universal_ble/pull/24/files#diff-c744a38517e9dcb9177126ffd1392b9decc2b53e55772d4270f4387a4f4c9357R488-R488) ```diff -result.insert(result.end(), data.begin(), data.end()); +try { + result.insert(result.end(), data.begin(), data.end()); +} catch (const std::exception& e) { + Logger::error("Failed to insert data into result vector: ", e.what()); + return std::vector(); +} ```
    Maintainability
    Abstract the manufacturer data conversion logic into a separate function. ___ **To improve code readability and maintainability, consider abstracting the logic for
    converting manufacturer data into a separate function. This approach not only makes the
    parseManufacturerDataHead function cleaner but also allows for easier testing and reuse of
    the conversion logic.** [windows/src/universal_ble_plugin.cpp [482-488]](https://github.com/Navideck/universal_ble/pull/24/files#diff-c744a38517e9dcb9177126ffd1392b9decc2b53e55772d4270f4387a4f4c9357R482-R488) ```diff auto manufacturerData = advertisement.ManufacturerData().GetAt(0); -uint16_t companyId = manufacturerData.CompanyId(); -uint16_t_union companyIdUnion; -companyIdUnion.uint16 = companyId; // Ensure proper endianness if needed -auto result = std::vector{companyIdUnion.bytes, companyIdUnion.bytes + sizeof(companyIdUnion.bytes)}; -auto data = to_bytevc(manufacturerData.Data()); -result.insert(result.end(), data.begin(), data.end()); +auto result = convertManufacturerDataToVector(manufacturerData); ```
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