fix: Re-enable SQLite3DB::LoadPlugin() with allow_load_plugin flag #28
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This addresses an issue from PR #22 where LoadPlugin() was completely disabled. The function performs necessary initialization even when no plugin is loaded (initializes built-in sqlite3 function pointers). Changes: - Added `const bool allow_load_plugin = false` flag in LoadPlugin() - Modified `if (plugin_name)` to `if (plugin_name && allow_load_plugin == true)` - Re-enabled the LoadPlugin() call in LoadPlugins() The plugin loading code remains disabled (allow_load_plugin=false) while the function pointer initialization from built-in SQLite3 now works correctly. TODO: Revisit plugin loading safety mechanism to allow actual plugin loading.
Summary of ChangesHello @renecannao, 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 addresses a critical issue where the Highlights
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Caution Review failedThe pull request is closed. 📝 WalkthroughSummary by CodeRabbitBug Fixes
✏️ Tip: You can customize this high-level summary in your review settings. WalkthroughThe changes modify plugin loading behavior by introducing a safety flag in sqlite3db.cpp that disables plugins by default and adds a guard condition, while main.cpp removes conditional warnings and directly invokes LoadPlugin when sqlite3_open_v2 is unavailable. Changes
Estimated code review effort🎯 2 (Simple) | ⏱️ ~12 minutes Poem
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Code Review
The pull request successfully re-enables the SQLite3DB::LoadPlugin() call, which is crucial for initializing built-in SQLite3 function pointers and resolving crashes. This addresses the core problem effectively. However, the introduction of a hardcoded allow_load_plugin flag within the function creates a maintainability issue by preventing external configuration of dynamic plugin loading.
| * @param[in] plugin_name The name of the SQLite3 plugin library to load. | ||
| */ | ||
| void SQLite3DB::LoadPlugin(const char *plugin_name) { | ||
| const bool allow_load_plugin = false; // TODO: Revisit plugin loading safety mechanism |
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Hardcoding allow_load_plugin to false directly within the LoadPlugin function makes it impossible to enable dynamic plugin loading without recompiling the application. For better flexibility and maintainability, this flag should be a configurable global variable (e.g., within GloVars) that can be managed externally, such as through a configuration file or command-line argument. This would allow for easier future enablement or testing of dynamic plugins.
| proxy_sqlite3_open_v2 = NULL; | ||
| proxy_sqlite3_exec = NULL; | ||
| if (plugin_name) { | ||
| if (plugin_name && allow_load_plugin == true) { |
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The condition allow_load_plugin == true will always evaluate to false because allow_load_plugin is hardcoded to false on line 1076. This means the code block responsible for loading external SQLite3 plugins will never be executed. While this aligns with the current safety measure to disable dynamic plugin loading, it creates a dead code path that could be confusing or misleading for future developers. Consider removing the allow_load_plugin == true part if the intent is to permanently disable dynamic loading, or make allow_load_plugin truly configurable if dynamic loading is a future possibility.
if (plugin_name) {
Problem
In PR #22, the call to
SQLite3DB::LoadPlugin()was completely disabled. This was incorrect because the function performs important initialization even when no plugin is specified—it initializes all theproxy_sqlite3_*function pointers from the built-in SQLite3 library.Solution
This fix:
LoadPlugin()call insrc/main.cppallow_load_plugin = falseinlib/sqlite3db.cppif (plugin_name)toif (plugin_name && allow_load_plugin == true)Behavior
LoadPlugin()now runs and initializes function pointers from built-in SQLite3allow_load_plugin = false) for safetyTesting
After this fix, the proxy_sqlite3_* function pointers are properly initialized on startup, fixing crashes that occurred when these functions were called with NULL pointers.
Fixes issue introduced in #22