Update dependencies and fix changes #757
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Summary of Changes
Hello @hahwul, 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 primarily focuses on updating the project's Go dependencies to their latest versions. It includes necessary code modifications to accommodate changes in the updated libraries' APIs, ensuring continued functionality. Additionally, some minor code formatting improvements are included.
Highlights
- Dependency Updates: Several Go dependencies have been updated to newer versions, including
mcp-go,tablewriter, andgolang.org/x/sync, along with some indirect dependencies. - Code Adaptation for Library Changes: Code has been modified to align with API changes in updated libraries, specifically affecting how tables are created with
tablewriterand how arguments are accessed in themcp-goserver handler. - Code Formatting: Minor formatting adjustments (mostly indentation) have been applied across several Go files.
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Code Review
This pull request focuses on updating several dependencies, notably github.com/mark3labs/mcp-go and github.com/olekukonko/tablewriter, and includes necessary code modifications to adapt to their new APIs. The changes in internal/report/report.go correctly implement the updated tablewriter API. Many other changes are minor formatting adjustments.
The primary feedback concerns the handling of parameters from the updated mcp-go library in pkg/server/mcp.go. To enhance robustness and prevent potential panics, it's recommended to use the 'comma, ok' idiom for type assertions and map accesses. Overall, the dependency updates and associated fixes seem to be the core intent, and the adaptations are mostly on track.
| @@ -96,7 +96,10 @@ | |||
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| // Handler for the scan tool | |||
| s.AddTool(scanTool, func(ctx context.Context, request mcp.CallToolRequest) (*mcp.CallToolResult, error) { | |||
| url := request.Params.Arguments["url"].(string) | |||
| // Type assert Arguments to map[string]any | |||
| args := request.Params.Arguments.(map[string]any) | |||
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This direct type assertion for request.Params.Arguments can panic if the actual type is not map[string]any. It's safer to use the 'comma, ok' idiom to check the success of the assertion and handle potential errors gracefully.
args, ok := request.Params.Arguments.(map[string]any)
if !ok {
return nil, fmt.Errorf("arguments are not of expected type map[string]any")
}| // Type assert Arguments to map[string]any | ||
| args := request.Params.Arguments.(map[string]any) | ||
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| url := args["url"].(string) |
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Accessing the map key "url" and type asserting its value directly can lead to a panic if the key is not present or if its value is not a string. Using the 'comma, ok' idiom for both map access and type assertion would make this safer. This check can also be combined with the emptiness check for url on the subsequent line.
urlVal, ok := args["url"].(string)
if !ok {
return nil, fmt.Errorf("url parameter is missing or not a string")
}
url := urlVal| @@ -218,7 +221,10 @@ | |||
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| // Handler for the results tool | |||
| s.AddTool(resultsTool, func(ctx context.Context, request mcp.CallToolRequest) (*mcp.CallToolResult, error) { | |||
| scanID := request.Params.Arguments["scan_id"].(string) | |||
| // Type assert Arguments to map[string]any | |||
| args := request.Params.Arguments.(map[string]any) | |||
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Similar to the 'url' parameter handling, this direct type assertion for request.Params.Arguments can panic. Employing the 'comma, ok' idiom is recommended for robust error handling.
args, ok := request.Params.Arguments.(map[string]any)
if !ok {
return nil, fmt.Errorf("arguments are not of expected type map[string]any")
}| // Type assert Arguments to map[string]any | ||
| args := request.Params.Arguments.(map[string]any) | ||
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| scanID := args["scan_id"].(string) |
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Directly accessing and type asserting args["scan_id"] can cause a panic if the key is absent or the value is not a string. It's advisable to use the 'comma, ok' idiom for safer map access and type assertion. This can be combined with the emptiness check for scanID on the next line.
scanIDVal, ok := args["scan_id"].(string)
if !ok {
return nil, fmt.Errorf("scan_id parameter is missing or not a string")
}
scanID := scanIDVal
Fix #748 #751 #752