feat: Support case-insensitive parsing of Content Type#125
feat: Support case-insensitive parsing of Content Type#125ReneWerner87 merged 2 commits intomasterfrom
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Summary of Changes
Hello @gaby, 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 an issue where the MIME type parsing utility might fail to correctly identify vendor-specific content types if they contained uppercase characters. I've enhanced the ParseVendorSpecificContentType function to optionally perform case-insensitive parsing, making the system more robust and compliant with MIME type specifications. This change also includes new tests to ensure the fix and new functionality work as expected.
Highlights
- MIME Parsing Enhancement: The
ParseVendorSpecificContentTypefunction inhttp.gohas been updated to accept an optionalcaseInsensitiveboolean argument. When set totrue, the function will convert the input content type to lowercase before parsing, allowing it to correctly handle vendor-specific MIME types that may contain uppercase characters. - Improved Robustness: The internal parsing logic within
ParseVendorSpecificContentTypenow operates on a normalized (potentially lowercased) version of the content type, ensuring that+and/delimiters are found regardless of their surrounding character casing when case-insensitive parsing is enabled. - Test Coverage: New test cases have been added to
http_test.goto specifically validate the handling of uppercase vendor-specific MIME types. This includes tests for both the default case-sensitive behavior and the newly introduced case-insensitive parsing, ensuring a regression test for this scenario.
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Codecov ReportAll modified and coverable lines are covered by tests ✅
Additional details and impacted files@@ Coverage Diff @@
## master #125 +/- ##
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+ Coverage 95.95% 96.42% +0.46%
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Files 9 9
Lines 495 503 +8
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+ Hits 475 485 +10
+ Misses 14 12 -2
Partials 6 6
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Code Review
This pull request successfully adds case-insensitive parsing for vendor-specific MIME types, controlled by a new optional parameter. The changes are correct and include relevant regression tests. I've provided a couple of suggestions to improve code conciseness in the implementation and to enhance test maintainability by refactoring a test to be table-driven.
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Actionable comments posted: 0
🧹 Nitpick comments (1)
http.go (1)
43-51: Consider explicit parameter instead of variadic for better API clarity.The implementation correctly handles case-insensitive parsing using the efficient
ToLower()function. However, the variadic parameter patterncaseInsensitive ...boolmight be less clear than an explicit parameter.Consider this alternative for better API clarity:
-func ParseVendorSpecificContentType(cType string, caseInsensitive ...bool) string { - useLower := len(caseInsensitive) > 0 && caseInsensitive[0] +func ParseVendorSpecificContentType(cType string, caseInsensitive bool) string { + useLower := caseInsensitiveThis makes the API more explicit about the case-insensitive behavior while maintaining backward compatibility concerns can be addressed through function overloading or separate function names.
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📒 Files selected for processing (2)
http.go(1 hunks)http_test.go(1 hunks)
🧰 Additional context used
🧠 Learnings (2)
📓 Common learnings
Learnt from: ReneWerner87
PR: gofiber/fiber#0
File: :0-0
Timestamp: 2024-12-01T10:28:36.011Z
Learning: Feature request #3224 has been created to add support for square bracket notation and comma-separated values in multipart form data in Fiber, while maintaining binary data transfer capabilities. This would bring parity with the existing form-urlencoded functionality.
Learnt from: ReneWerner87
PR: gofiber/fiber#0
File: :0-0
Timestamp: 2024-12-01T10:28:36.011Z
Learning: Fiber currently supports square bracket notation in form data with 'application/x-www-form-urlencoded' content type, but this feature is not available for multipart form data. The implementation for form-urlencoded is in ctx.go (BodyParser method), while multipart form data handling needs enhancement to support this feature.
Learnt from: ReneWerner87
PR: gofiber/fiber#3161
File: app.go:923-932
Timestamp: 2024-11-15T07:56:21.623Z
Learning: In the Fiber framework, breaking changes are acceptable when moving from version 2 to version 3, including modifications to method signatures such as in the `Test` method in `app.go`.
Learnt from: sixcolors
PR: gofiber/fiber#3016
File: middleware/csrf/csrf_test.go:188-193
Timestamp: 2024-10-08T19:06:06.583Z
Learning: In the Fiber framework tests, using `ctx.Response.Header.Cookie` may not be suitable for parsing cookies from the response header, as it requires a `*Cookie` and fills it rather than returning a string value; thus, manual parsing of the `Set-Cookie` header may be necessary.
Learnt from: sixcolors
PR: gofiber/fiber#3016
File: middleware/csrf/csrf_test.go:188-193
Timestamp: 2024-09-25T15:57:10.221Z
Learning: In the Fiber framework tests, using `ctx.Response.Header.Cookie` may not be suitable for parsing cookies from the response header, as it requires a `*Cookie` and fills it rather than returning a string value; thus, manual parsing of the `Set-Cookie` header may be necessary.
http_test.go (1)
Learnt from: ReneWerner87
PR: gofiber/fiber#3161
File: app.go:923-932
Timestamp: 2024-11-15T07:56:21.623Z
Learning: In the Fiber framework, breaking changes are acceptable when moving from version 2 to version 3, including modifications to method signatures such as in the `Test` method in `app.go`.
🧬 Code Graph Analysis (2)
http_test.go (1)
http.go (1)
ParseVendorSpecificContentType(43-77)
http.go (1)
strings.go (1)
ToLower(8-27)
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- GitHub Check: Build (1.23.x, windows-latest)
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🔇 Additional comments (2)
http.go (1)
52-77: The case-insensitive logic implementation is well-designed.The implementation correctly:
- Uses the efficient
ToLower()function fromstrings.gothat avoids allocations when possible- Performs all string operations on the working variable (potentially lowercase)
- Returns appropriately cased results based on the flag
- Maintains the original parsing logic integrity
http_test.go (1)
128-135: The test cases correctly validate the new case-insensitive functionality.The test cases properly cover both scenarios:
- Without case-insensitive flag: preserves original case in prefix, extracts suffix in original case
- With case-insensitive flag: returns fully lowercase result
The expected outcomes match the implementation logic and provide good regression coverage.
However, consider adding a test case for mixed-case scenarios to ensure robustness:
// Test mixed case scenarios cType = ParseVendorSpecificContentType("Application/VND.api+JSON", true) require.Equal(t, "application/json", cType) cType = ParseVendorSpecificContentType("Application/VND.api+JSON") require.Equal(t, "Application/JSON", cType)
Summary
ParseVendorSpecificContentTypeSummary by CodeRabbit
New Features
Tests