Enhance authentication and error handling with JWT utilities #3
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- Added JwtOptions class for structured JWT configuration with validation. - Updated Program.cs to bind and validate JWT options from configuration. - Enhanced token generation logic in JwtTokenGenerator to utilize new options. - Implemented global exception handling with ProblemDetails for better error reporting. - Added health checks and improved documentation generation in Swagger.
- Updated JwtOptions class to include validation for Issuer and Audience fields. - Improved token generation logic in JwtTokenGenerator to support base64-encoded keys. - Refined validation messages for JWT options in Program.cs. - Adjusted project file to enable documentation generation only in Release mode. - Enhanced health check endpoint to allow anonymous access.
…accessibility - Introduced JwtOptionsValidator class for enhanced validation of Issuer and Audience fields. - Updated JwtOptions class to utilize the new validator for better data integrity. - Changed JwtTokenGenerator class to public for broader accessibility within the application.
- Removed outdated gcdump file. - Updated Program.cs to derive key bytes from the JWT key for improved security. - Enhanced JwtOptionsValidator to include key strength validation. - Refactored JwtTokenGenerator to utilize the new key derivation method, ensuring consistent key handling across the application.
- Introduced comprehensive unit tests for AuthService, covering registration and login functionalities. - Added validation tests for username, email, and password inputs to ensure robust error handling. - Created DTO tests for AuthResult, LoginRequest, and RegisterRequest to validate data integrity. - Implemented User and PasswordHasher tests to verify user entity behavior and password hashing logic. - Established a TestData utility class to streamline test data creation and management. - Enhanced overall test coverage for the authentication module, ensuring reliability and maintainability.
- Added GitHub Actions workflows for continuous integration and code quality checks. - Created a README.md file detailing CI/CD processes and local development instructions. - Updated .gitignore to exclude test results directory. - Enhanced .NET project file to include SQLite as a dependency for improved database handling. - Refactored user entity and authentication service to improve validation and error handling. - Expanded unit tests for authentication services, ensuring robust validation and error messaging. - Improved password hashing logic for enhanced security.
- Added npm installation command for frontend tests in README.md. - Updated CI workflow to include concurrency settings and caching for .NET and Node.js dependencies. - Modified code quality workflow to streamline Node.js setup and improve linting and type checking processes. - Refactored authentication service to enhance email validation and trim whitespace from user inputs. - Improved user entity validation messages for clarity. - Updated password hashing logic for better security practices. - Enhanced unit tests for authentication and user repository to ensure robust validation and error handling.
- Replaced client linting step with ast-grep action for enhanced Svelte compliance checks. - Ensured the latest version of ast-grep is used with a specified configuration file.
- Introduced maximum length constraints for username, email, and password in AuthService to enhance validation. - Updated User entity to enforce username and email length restrictions. - Simplified validation logic in AuthService for better readability and maintainability. - Enhanced error handling in UserRepository to ensure unique email constraints are respected. - Improved password hashing parameters for increased security. - Refactored exception handling in various services for consistency and clarity.
- Simplified password length validation by using a conditional expression for better readability. - Consolidated error messages for password length checks into a single return statement.
- Streamlined password validation logic by replacing multiple conditional statements with a single conditional expression for improved readability. - Consolidated error message handling for password requirements into a more concise format.
- Updated the pre-commit hook to include the .NET tools path for better accessibility. - Changed C# code formatting command to use CSharpier for improved consistency in code style. - Refactored formatting commands in the pre-commit script for clarity and efficiency. - Cleaned up whitespace and improved formatting in various C# files for better readability.
- Added new format and check scripts in package.json for better code management. - Updated .prettierignore to exclude generated API and UI library files from formatting. - Configured ESLint to ignore specific directories for improved linting accuracy. - Enabled runes in Svelte compiler options for enhanced functionality. - Refactored authentication logic to provide clearer error messages during login and registration processes. - Improved form validation with detailed error handling for user feedback.
- Adjusted the formatting of the ESLint configuration file for better clarity. - Ensured consistent indentation and organization of rules and language options. - Maintained the existing rule for deprecation warnings while enhancing overall configuration layout.
…ation - Updated ESLint configuration for improved readability and structure, ensuring consistent formatting and organization. - Introduced a new TypeScript configuration file for ESLint to better manage TypeScript-specific linting. - Enhanced authentication error handling by centralizing error message extraction and improving user feedback during login and registration processes. - Added a new utility for resolving authentication error messages, streamlining error handling across the application. - Improved the layout and structure of various components for better maintainability and user experience.
- Streamlined ESLint configuration for better readability and organization, ensuring consistent formatting. - Enhanced the layout of the Svelte component by adjusting class order and improving indentation for better maintainability. - Updated various elements within the component for improved clarity and user experience, including button and card structures.
- Changed the launch configuration type from 'pwa-node' to 'node' for improved compatibility. - Refactored ESLint configuration by removing the deprecated plugin and adjusting rules for better clarity and maintainability. - Enhanced the organization of ESLint settings to streamline the configuration process.
- Streamlined the ESLint configuration file by consolidating formatting and indentation for better clarity. - Enhanced the organization of rules and language options, ensuring consistent structure throughout the configuration. - Maintained existing rules while improving overall layout for easier maintenance and understanding.
- Created AGENTS.md to outline repository guidelines, project structure, and module organization for both frontend and backend. - Introduced structure.md as a comprehensive guide for code organization and architectural patterns in the SvelteKit and .NET application. - Updated README.md to provide an overview of the project, technology stack, and development setup instructions. - Enhanced documentation for testing, deployment, and development workflows to improve clarity and support for contributors.
- Created CI-CD-README.md to outline the CI/CD workflows using GitHub Actions. - Documented the CI pipeline and code quality checks, detailing the steps for building and testing both frontend and backend. - Included instructions for local development and test result management to assist contributors in maintaining code quality. - Suggested branch protection rules to enhance collaboration and prevent breaking changes.
- Introduced JWT utilities for decoding, validation, and user extraction to streamline authentication processes. - Implemented rate limiting for login and registration actions to prevent abuse and improve security. - Enhanced error handling in authentication flows, providing clearer user feedback and structured error responses. - Updated README.md for minor text correction and improved documentation links. - Added new error message resolution strategies for better user experience during authentication failures.
WalkthroughAdds client-side JWT utilities and rate-limiting helpers, integrates them into auth pages and remote logic, updates server to return structured auth errors and enforce global and per-auth rate limits with new minimal auth endpoints, adds a jwt-decode dependency, adjusts layout auth flow to local token decoding, and updates README text. Changes
Sequence Diagram(s)sequenceDiagram
participant B as Browser
participant L as (app) +layout.server
participant C as Cookies
participant JT as JWT Utils
B->>L: load()
L->>C: Read auth_token
alt Token missing
L-->>B: redirect /login
else Token present
L->>JT: isValidTokenFormat(token)
alt Invalid format
L->>C: Delete auth_token
L-->>B: redirect /login
else Valid format
L->>JT: isTokenExpired(token)
alt Expired
L->>C: Delete auth_token
L-->>B: redirect /login
else Not expired
L->>JT: extractUserFromToken(token)
alt Decode ok
L-->>B: return { user: { id, name } }
else Decode error
L->>C: Delete auth_token
L-->>B: redirect /login
end
end
end
end
sequenceDiagram
participant B as Browser
participant S as Server
participant RL as RateLimiter
participant AS as AuthService
Note over S,RL: Global limiter: 100/min/IP<br/>Policy "auth-strict": 5/5min
B->>S: POST /Auth/login (auth-strict)
S->>RL: Check policy
alt Exceeded
S-->>B: 429 JSON error
else Allowed
S->>AS: Login(request)
alt Success
S-->>B: 200 OK
else Failure
S-->>B: 400/401 with { Message, ErrorType }
end
end
sequenceDiagram
participant UI as Login/Register Page
participant RL as Client RateLimiter
participant AR as auth.remote
participant EM as Error Messages
UI->>RL: checkLimit()
alt Exceeded
RL-->>UI: { allowed: false, resetIn }
UI-->>UI: Show rate limit message
else Allowed
UI->>AR: login/register()
alt Error
AR->>EM: resolveAuthError(err)
EM-->>AR: EnhancedAuthError
AR-->>UI: error with statusCode/message
UI->>EM: getUserFriendlyMessage(error)
EM-->>UI: user message
UI-->>UI: Show message (429 handled specially)
else Success
RL->>RL: clearAttempts()
AR-->>UI: success
end
end
Estimated code review effort🎯 4 (Complex) | ⏱️ ~60 minutes Poem
Pre-merge checks and finishing touches✅ Passed checks (3 passed)
✨ Finishing touches
🧪 Generate unit tests
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Pull Request Overview
This PR enhances the authentication system with JWT utilities, rate limiting, and improved error handling to strengthen security and user experience.
- Introduced JWT utilities for client-side token validation and user extraction
- Implemented comprehensive rate limiting for authentication endpoints at both server and client levels
- Enhanced error handling with structured error responses and user-friendly messaging
Reviewed Changes
Copilot reviewed 12 out of 13 changed files in this pull request and generated 3 comments.
Show a summary per file
| File | Description |
|---|---|
| README.md | Minor text correction and documentation link update |
| MySvelteApp.Server/Program.cs | Added server-side rate limiting configuration for authentication endpoints |
| MySvelteApp.Server/Presentation/Models/Auth/AuthErrorResponse.cs | Added error type field to auth error responses |
| MySvelteApp.Server/Presentation/Controllers/AuthController.cs | Refactored error response handling to include error types |
| MySvelteApp.Client/src/routes/(auth)/register/+page.svelte | Integrated client-side rate limiting and enhanced error handling |
| MySvelteApp.Client/src/routes/(auth)/login/+page.svelte | Added rate limiting and improved error messaging |
| MySvelteApp.Client/src/routes/(auth)/auth.remote.ts | Replaced backend token validation with client-side JWT utilities |
| MySvelteApp.Client/src/routes/(app)/+layout.server.ts | Updated to use JWT utilities for token validation |
| MySvelteApp.Client/src/lib/utils/rate-limiting.ts | New client-side rate limiting implementation |
| MySvelteApp.Client/src/lib/utils/jwt.ts | New JWT decoding and validation utilities |
| MySvelteApp.Client/src/lib/auth/error-messages.ts | Enhanced error handling with categorization and user-friendly messages |
| MySvelteApp.Client/package.json | Added jwt-decode dependency |
Files not reviewed (1)
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| - **Modern development workflow** with Docker and CI/CD | ||
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| Perfect for developers looking to build scalable, maintainable full-stack applications. | ||
| Perfect for developers looking to build scalable, maintainable full-stai dontck applications. |
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Text appears to be corrupted. Should be 'full-stack' instead of 'full-stai dontck'.
| Perfect for developers looking to build scalable, maintainable full-stai dontck applications. | |
| Perfect for developers looking to build scalable, maintainable full-stack applications. |
| return { | ||
| id: parseInt(decoded.sub || decoded.nameid, 10), |
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parseInt could return NaN if the token claims contain non-numeric values. This should be validated or handled with a fallback.
| return { | |
| id: parseInt(decoded.sub || decoded.nameid, 10), | |
| const idStr = decoded.sub || decoded.nameid; | |
| const idNum = parseInt(idStr, 10); | |
| if (!Number.isFinite(idNum)) { | |
| throw new Error('JWT does not contain a valid numeric user ID'); | |
| } | |
| return { | |
| id: idNum, |
| token | ||
| id: user.id, | ||
| username: user.username, | ||
| email: `${user.username}@example.com`, // Placeholder email since JWT doesn't include it |
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Using a hardcoded placeholder email domain could cause confusion. Consider using a configurable domain or marking it more clearly as a placeholder.
![coderabbitai[bot]](https://avatars.githubusercontent.com/in/347564?s=60&v=4){kind=small}
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Actionable comments posted: 12
🧹 Nitpick comments (19)
README.md (1)
14-14: Fix typo in intro sentence.Replace "full-stai dontck" with "full-stack".
-Perfect for developers looking to build scalable, maintainable full-stai dontck applications. +Perfect for developers looking to build scalable, maintainable full-stack applications.MySvelteApp.Client/src/lib/utils/jwt.ts (2)
23-29: Clarify that decoding is UNSIGNED and must not be used for trust decisions.Add a warning JSDoc or rename to
decodeJwtUnverifiedto prevent misuse for authorization.
60-67: Format check is weak; avoid relying on it for security gates.Base decisions on decode+verify rather than dot-counting. Keep this for UX only.
MySvelteApp.Client/src/routes/(app)/+layout.server.ts (2)
4-9: Remove unused import.
decodeJwtisn’t used.Apply this diff:
import { - decodeJwt, extractUserFromToken, isTokenExpired, isValidTokenFormat } from '$lib/utils/jwt';
16-19: Style: preferthrow redirect(...)for clarity.Functionally equivalent, but aligns with SvelteKit docs and avoids mixed patterns.
Also applies to: 23-26, 30-33, 45-47
MySvelteApp.Client/src/lib/auth/error-messages.ts (3)
19-31: Add a pattern for rate limiting to improve UX (HTTP 429).This helps map burst failures to a friendly message.
Apply this diff:
const ERROR_PATTERNS = { usernameRequired: /username.*required/i, emailRequired: /email.*required/i, passwordRequired: /password.*required/i, passwordTooShort: /password.*8.*characters/i, passwordComplexity: /password.*uppercase.*lowercase.*number/i, usernameTaken: /username.*taken/i, emailTaken: /email.*registered/i, invalidCredentials: /invalid.*username.*password/i, tokenExpired: /token.*expired/i, - tokenInvalid: /token.*invalid/i + tokenInvalid: /token.*invalid/i, + rateLimited: /too many requests|rate.*limit/i } as const;
135-145: Return a friendlier message for 429 or matched rate-limit errors.Leverage statusCode when available.
Apply this diff:
export const getUserFriendlyMessage = (error: EnhancedAuthError): string => { switch (error.type) { case AuthErrorType.Validation: return error.message; // Validation messages are usually clear enough case AuthErrorType.Conflict: return 'This information is already in use. Please try something different.'; case AuthErrorType.Unauthorized: return 'Authentication failed. Please check your credentials and try again.'; default: - return error.message; + if (error.statusCode === 429 || ERROR_PATTERNS.rateLimited.test(error.message)) { + return 'Too many attempts. Please wait a bit and try again.'; + } + return error.message; } };
72-123: Prefer server-provided error type when present.If the backend includes an
errorTypefield (enum), trust it over regex heuristics.Apply this minimal enhancement:
- // Extract from body + // Extract from body if ('body' in err) { - const extracted = extractAuthMessage((err as { body?: unknown }).body); + const body = (err as { body?: unknown }).body as Record<string, unknown> | undefined; + const extracted = extractAuthMessage(body); if (extracted) { message = extracted; - errorType = determineErrorType(message); + if (typeof body?.errorType === 'number') { + errorType = body.errorType as AuthErrorType; + } else { + errorType = determineErrorType(message); + } } }MySvelteApp.Client/src/routes/(auth)/auth.remote.ts (2)
60-68: Align cookie lifetime with token exp to avoid stale sessions.Decode exp and set cookie maxAge accordingly (bounded).
Apply this diff:
- // Set JWT token in cookie + // Set JWT token in cookie if (result?.token) { - cookies.set('auth_token', result.token, { + // Derive maxAge from token exp; fall back to session cookie + let maxAge: number | undefined; + try { + const { exp } = extractUserFromToken(result.token) && (await import('$lib/utils/jwt')).then(m => m.decodeJwt(result.token)); + const now = Math.floor(Date.now() / 1000); + if (typeof exp === 'number' && exp > now) { + maxAge = Math.min(exp - now, 60 * 60 * 24 * 7); // cap at 7d + } + } catch {} + cookies.set('auth_token', result.token, { path: '/', httpOnly: true, secure: import.meta.env.PROD, - sameSite: 'strict' + sameSite: 'strict', + ...(maxAge ? { maxAge } : {}) }); }Note: if you prefer, import
decodeJwtstatically and computemaxAgedirectly.
169-174: Auth check should verify signature, not just format/exp.Replace with a server-side
joseverify against secret/JWKS for reliabletrue/false.MySvelteApp.Client/src/lib/utils/rate-limiting.ts (1)
95-100: Harden localStorage writes (quota/Privacy mode).
localStorage.setItemcan throw (quota or blocked storage). Swallow errors to avoid breaking form flows.Apply:
- localStorage.setItem(key, JSON.stringify(attempts)); + try { + localStorage.setItem(key, JSON.stringify(attempts)); + } catch { + // ignore storage errors + }MySvelteApp.Client/src/routes/(auth)/login/+page.svelte (1)
62-74: Keep enhanced error path; alternative iswithRateLimit.If you prefer, you can wrap
submitwith the new genericwithRateLimit(loginRateLimiter, submit)and branch on its result, but your current enhanced-error flow is fine oncerecordAttempt()is added.MySvelteApp.Server/Presentation/Controllers/AuthController.cs (1)
22-24: Advertise 429 in OpenAPI for rate limiting.If you’re returning 429 for rate-limited auth, add
[ProducesResponseType(..., 429)]to both endpoints.Apply:
[HttpPost("register")] [AllowAnonymous] [ProducesResponseType(typeof(AuthSuccessResponse), StatusCodes.Status200OK)] [ProducesResponseType(typeof(AuthErrorResponse), StatusCodes.Status400BadRequest)] +[ProducesResponseType(typeof(AuthErrorResponse), StatusCodes.Status429TooManyRequests)] @@ [HttpPost("login")] [AllowAnonymous] [ProducesResponseType(typeof(AuthSuccessResponse), StatusCodes.Status200OK)] [ProducesResponseType(typeof(AuthErrorResponse), StatusCodes.Status400BadRequest)] [ProducesResponseType(typeof(AuthErrorResponse), StatusCodes.Status401Unauthorized)] +[ProducesResponseType(typeof(AuthErrorResponse), StatusCodes.Status429TooManyRequests)]Also applies to: 44-47
MySvelteApp.Server/Program.cs (6)
287-289: Health check isn’t actually exempt from rate limiting.Global limiter applies unless explicitly disabled. Add DisableRateLimiting().
-app.MapHealthChecks("/health").AllowAnonymous(); +app.MapHealthChecks("/health").AllowAnonymous().DisableRateLimiting();
134-149: Return RFC 7807 content type and include Retry-After header on 429.Use application/problem+json and surface Retry-After to help clients back off.
options.OnRejected = async (context, token) => { context.HttpContext.Response.StatusCode = StatusCodes.Status429TooManyRequests; - context.HttpContext.Response.ContentType = "application/json"; + context.HttpContext.Response.ContentType = "application/problem+json"; var problemDetails = new ProblemDetails { Status = StatusCodes.Status429TooManyRequests, Title = "Too Many Requests", Detail = "You have made too many requests. Please try again later.", Instance = context.HttpContext.Request.Path, }; - await context.HttpContext.Response.WriteAsJsonAsync(problemDetails, token); + if (context.Lease.TryGetMetadata(MetadataName.RetryAfter, out var retryAfter)) + { + context.HttpContext.Response.Headers.RetryAfter = ((int)retryAfter.TotalSeconds).ToString(); + } + await context.HttpContext.Response.WriteAsJsonAsync(problemDetails, token); };
279-281: Rate-limited requests won’t be captured by Serilog request logging; swap the order.Place request logging before UseRateLimiter to log 429 rejections.
-app.UseRateLimiter(); -app.UseSerilogRequestLogging(); +app.UseSerilogRequestLogging(); +app.UseRateLimiter();
104-111: QueueProcessingOrder is irrelevant with QueueLimit = 0.Minor cleanup: drop QueueProcessingOrder to reduce noise.
- QueueProcessingOrder = QueueProcessingOrder.OldestFirst, QueueLimit = 0, // No queuing, reject immediately(Apply in both limiter option blocks.)
Also applies to: 121-128
67-78: JWT key strength validation (posture hardening).Consider enforcing a minimum key size (>= 32 bytes for HS256) during options validation to avoid weak signing keys.
Add alongside existing JwtOptions validations (illustrative snippet, not a diff for this unchanged block):
.Services .AddOptions<JwtOptions>() .Bind(builder.Configuration.GetSection("Jwt")) .ValidateDataAnnotations() .Validate(o => DeriveKeyBytes(o.Key).Length >= 32, "Jwt:Key must be at least 256 bits.") .ValidateOnStart();
295-297: Consider 401 for invalid credentials (optional).If AuthService distinguishes invalid credentials vs validation errors, return Results.Unauthorized() for the former and BadRequest for the latter.
Would you like a small switch on an error code/enum from AuthService to shape status codes?
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⛔ Files ignored due to path filters (1)
MySvelteApp.Client/package-lock.jsonis excluded by!**/package-lock.json
📒 Files selected for processing (12)
MySvelteApp.Client/package.json(1 hunks)MySvelteApp.Client/src/lib/auth/error-messages.ts(1 hunks)MySvelteApp.Client/src/lib/utils/jwt.ts(1 hunks)MySvelteApp.Client/src/lib/utils/rate-limiting.ts(1 hunks)MySvelteApp.Client/src/routes/(app)/+layout.server.ts(2 hunks)MySvelteApp.Client/src/routes/(auth)/auth.remote.ts(5 hunks)MySvelteApp.Client/src/routes/(auth)/login/+page.svelte(2 hunks)MySvelteApp.Client/src/routes/(auth)/register/+page.svelte(2 hunks)MySvelteApp.Server/Presentation/Controllers/AuthController.cs(1 hunks)MySvelteApp.Server/Presentation/Models/Auth/AuthErrorResponse.cs(1 hunks)MySvelteApp.Server/Program.cs(3 hunks)README.md(2 hunks)
🧰 Additional context used
📓 Path-based instructions (3)
MySvelteApp.Client/src/**/*.{ts,js,svelte}
📄 CodeRabbit inference engine (CLAUDE.md)
Use ESLint (with Svelte plugin and TypeScript support) and Prettier (with Svelte and Tailwind plugins) for linting and formatting
Files:
MySvelteApp.Client/src/lib/utils/rate-limiting.tsMySvelteApp.Client/src/lib/utils/jwt.tsMySvelteApp.Client/src/routes/(auth)/login/+page.svelteMySvelteApp.Client/src/routes/(auth)/register/+page.svelteMySvelteApp.Client/src/routes/(app)/+layout.server.tsMySvelteApp.Client/src/lib/auth/error-messages.tsMySvelteApp.Client/src/routes/(auth)/auth.remote.ts
MySvelteApp.Client/src/**/*.svelte
📄 CodeRabbit inference engine (CLAUDE.md)
After editing any Svelte file, run
ast-grep scanto catch Svelte 5 syntax and migration issues
Files:
MySvelteApp.Client/src/routes/(auth)/login/+page.svelteMySvelteApp.Client/src/routes/(auth)/register/+page.svelte
MySvelteApp.Client/src/**/*.remote.{js,ts}
📄 CodeRabbit inference engine (CLAUDE.md)
Define SvelteKit remote functions using query/command/form/prerender and include input validation (e.g., with valibot) when parameters are accepted
Files:
MySvelteApp.Client/src/routes/(auth)/auth.remote.ts
🧠 Learnings (1)
📚 Learning: 2025-09-18T07:04:00.832Z
Learnt from: CR
PR: refactor-gremlin/svelte-NET-Test#0
File: CLAUDE.md:0-0
Timestamp: 2025-09-18T07:04:00.832Z
Learning: Applies to MySvelteApp.Client/src/**/*.remote.{js,ts} : Define SvelteKit remote functions using query/command/form/prerender and include input validation (e.g., with valibot) when parameters are accepted
Applied to files:
MySvelteApp.Client/src/routes/(auth)/auth.remote.ts
🧬 Code graph analysis (6)
MySvelteApp.Server/Presentation/Controllers/AuthController.cs (2)
MySvelteApp.Server/Presentation/Models/Auth/AuthErrorResponse.cs (1)
AuthErrorResponse(5-9)MySvelteApp.Client/api/schema/types.gen.ts (1)
AuthErrorResponse(3-5)
MySvelteApp.Server/Program.cs (3)
MySvelteApp.Server/Tests/TestUtilities/TestData.cs (1)
Authentication(40-111)MySvelteApp.Server/Application/Authentication/DTOs/LoginRequest.cs (1)
LoginRequest(3-7)MySvelteApp.Server/Application/Authentication/DTOs/RegisterRequest.cs (1)
RegisterRequest(3-8)
MySvelteApp.Server/Presentation/Models/Auth/AuthErrorResponse.cs (2)
MySvelteApp.Client/api/schema/types.gen.ts (1)
AuthErrorResponse(3-5)MySvelteApp.Server/Application/Authentication/AuthService.cs (2)
Message(133-188)Message(190-199)
MySvelteApp.Client/src/routes/(app)/+layout.server.ts (1)
MySvelteApp.Client/src/lib/utils/jwt.ts (3)
isValidTokenFormat(60-67)isTokenExpired(34-42)extractUserFromToken(47-55)
MySvelteApp.Client/src/lib/auth/error-messages.ts (3)
MySvelteApp.Client/api/schema/zod.gen.ts (1)
zAuthErrorResponse(5-10)MySvelteApp.Server/Presentation/Models/Auth/AuthErrorResponse.cs (1)
AuthErrorResponse(5-9)MySvelteApp.Client/api/schema/types.gen.ts (1)
AuthErrorResponse(3-5)
MySvelteApp.Client/src/routes/(auth)/auth.remote.ts (2)
MySvelteApp.Client/src/lib/auth/error-messages.ts (1)
resolveAuthError(72-123)MySvelteApp.Client/src/lib/utils/jwt.ts (3)
isValidTokenFormat(60-67)isTokenExpired(34-42)extractUserFromToken(47-55)
🪛 GitHub Check: Code Quality Checks
MySvelteApp.Client/src/lib/utils/rate-limiting.ts
[failure] 152-152:
Unexpected any. Specify a different type
[failure] 151-151:
Unexpected any. Specify a different type
MySvelteApp.Client/src/routes/(app)/+layout.server.ts
[failure] 5-5:
'decodeJwt' is defined but never used
🪛 GitHub Actions: Code Quality
MySvelteApp.Client/src/lib/utils/rate-limiting.ts
[error] 151-151: Step: prettier --check . && eslint .; ESLint: Unexpected any. Specify a different type. (@typescript-eslint/no-explicit-any)
⏰ Context from checks skipped due to timeout of 90000ms. You can increase the timeout in your CodeRabbit configuration to a maximum of 15 minutes (900000ms). (1)
- GitHub Check: Test
🔇 Additional comments (8)
README.md (1)
350-350: Approve — CI/CD doc link verified
Confirmed .github/CI-CD-README.md exists; link won't 404. LGTM.MySvelteApp.Client/src/routes/(app)/+layout.server.ts (1)
45-46: Log key should beerr: erroronly if logger supports it.Ensure your logger serializes
Errorobjects correctly; otherwise logerror: String(error)or{ msg, stack }.MySvelteApp.Client/src/routes/(auth)/auth.remote.ts (1)
72-78: Good move centralizing error handling.Using
resolveAuthErrorsimplifies flows and standardizes UX.Also applies to: 108-111
MySvelteApp.Client/src/lib/utils/rate-limiting.ts (1)
33-73: Overall utility looks solid.SSR guard, windowed filtering, and reset-time formatting are correct. Preconfigured limiters read well.
Also applies to: 75-125, 127-145
MySvelteApp.Client/src/routes/(auth)/register/+page.svelte (1)
1-21: Run Svelte 5 syntax check (ast-grep scan) — rerun without --quiet. Previous run failed with:error: unexpected argument '--quiet'. Run at repo root:ast-grep scan --json(orast-grep scan) and paste the output. Applies to MySvelteApp.Client/src/routes/(auth)/register/+page.svelte lines 1–21 and 128–131.MySvelteApp.Server/Presentation/Controllers/AuthController.cs (1)
65-79: Return 429 for rate-limited errorsMap AuthErrorType.RateLimited to HTTP 429 in ToErrorResponse (MySvelteApp.Server/Presentation/Controllers/AuthController.cs). I couldn't confirm RateLimited exists in MySvelteApp.Server/Application/Authentication/DTOs/AuthErrorType.cs — verify the enum contains RateLimited or an equivalent token; if present apply:
private IActionResult ToErrorResponse(AuthResult result) { var errorMessage = result.ErrorMessage ?? "An unknown error occurred."; var errorResponse = new AuthErrorResponse { Message = errorMessage, ErrorType = result.ErrorType, }; - return result.ErrorType switch - { - AuthErrorType.Unauthorized => Unauthorized(errorResponse), - _ => BadRequest(errorResponse), - }; + return result.ErrorType switch + { + AuthErrorType.Unauthorized => Unauthorized(errorResponse), + AuthErrorType.RateLimited => StatusCode(StatusCodes.Status429TooManyRequests, errorResponse), + _ => BadRequest(errorResponse), + }; }MySvelteApp.Client/src/routes/(auth)/login/+page.svelte (1)
1-19: ast-grep Svelte 5 scan — no findingsScan output was an empty JSON array; no Svelte 5 migration/syntax issues found in MySvelteApp.Client/src/routes/(auth)/login/+page.svelte (lines 1–19 and 100–107).
MySvelteApp.Server/Presentation/Models/Auth/AuthErrorResponse.cs (1)
1-1: No change required — ASP.NET Core uses camelCase JSON by default.Program.cs doesn't override JSON naming and .NET web defaults set JsonSerializerOptions.PropertyNamingPolicy = CamelCase, so AuthErrorResponse (MySvelteApp.Server/Presentation/Models/Auth/AuthErrorResponse.cs) will serialize to "message"/"errorType". (learn.microsoft.com)
| "jwt-decode": "^4.0.0", | ||
| "pino": "^9.5.0", | ||
| "pino-loki": "^2.3.0", | ||
| "zod": "^4.1.7" |
There was a problem hiding this comment.
jwt-decode only parses; add server-side signature verification (e.g., jose) to avoid trusting forged tokens.
Client/server code uses decoded claims to gate auth without verifying signatures. Add a verifier lib and wire it in server paths (+layout.server.ts, auth.remote.ts).
Apply this diff to declare the dependency:
"dependencies": {
+ "jose": "^5.0.0",
"@hey-api/openapi-ts": "^0.83.1",📝 Committable suggestion
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Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| "jwt-decode": "^4.0.0", | |
| "pino": "^9.5.0", | |
| "pino-loki": "^2.3.0", | |
| "zod": "^4.1.7" | |
| "jose": "^5.0.0", | |
| "jwt-decode": "^4.0.0", | |
| "pino": "^9.5.0", | |
| "pino-loki": "^2.3.0", | |
| "zod": "^4.1.7" |
| export function isTokenExpired(token: string): boolean { | ||
| try { | ||
| const decoded = decodeJwt(token); | ||
| const currentTime = Math.floor(Date.now() / 1000); | ||
| return decoded.exp < currentTime; | ||
| } catch { | ||
| return true; // Consider invalid tokens as expired | ||
| } |
There was a problem hiding this comment.
Treat tokens without a numeric exp as expired.
Currently, tokens missing/invalid exp evaluate to not expired. Guard explicitly.
Apply this diff:
export function isTokenExpired(token: string): boolean {
try {
const decoded = decodeJwt(token);
const currentTime = Math.floor(Date.now() / 1000);
- return decoded.exp < currentTime;
+ if (typeof decoded.exp !== 'number' || !Number.isFinite(decoded.exp)) {
+ return true;
+ }
+ return decoded.exp < currentTime;
} catch {
return true; // Consider invalid tokens as expired
}
}📝 Committable suggestion
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Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| export function isTokenExpired(token: string): boolean { | |
| try { | |
| const decoded = decodeJwt(token); | |
| const currentTime = Math.floor(Date.now() / 1000); | |
| return decoded.exp < currentTime; | |
| } catch { | |
| return true; // Consider invalid tokens as expired | |
| } | |
| export function isTokenExpired(token: string): boolean { | |
| try { | |
| const decoded = decodeJwt(token); | |
| const currentTime = Math.floor(Date.now() / 1000); | |
| if (typeof decoded.exp !== 'number' || !Number.isFinite(decoded.exp)) { | |
| return true; | |
| } | |
| return decoded.exp < currentTime; | |
| } catch { | |
| return true; // Consider invalid tokens as expired | |
| } | |
| } |
🤖 Prompt for AI Agents
In MySvelteApp.Client/src/lib/utils/jwt.ts around lines 34 to 41, the function
treats tokens without a numeric exp as not expired; change the logic to
explicitly treat tokens missing or having a non-numeric exp as expired by first
validating decoded exists and that decoded.exp is a number before comparing to
currentTime, and return true (expired) if that validation fails; keep the
try/catch but within try perform a guard like "if (!decoded || typeof
decoded.exp !== 'number') return true" then do the numeric comparison.
| export function extractUserFromToken(token: string): DecodedUser { | ||
| const decoded = decodeJwt(token); | ||
|
|
||
| return { | ||
| id: parseInt(decoded.sub || decoded.nameid, 10), | ||
| username: decoded.name, | ||
| token | ||
| }; | ||
| } |
There was a problem hiding this comment.
NaN and missing-claim risks; validate id/username or fail fast.
parseInt(decoded.sub || decoded.nameid) can be NaN. Many JWTs use non‑numeric sub. Validate and throw with a clear error.
Apply this diff:
export function extractUserFromToken(token: string): DecodedUser {
const decoded = decodeJwt(token);
return {
- id: parseInt(decoded.sub || decoded.nameid, 10),
- username: decoded.name,
+ id: (() => {
+ const idClaim = decoded.sub ?? decoded.nameid;
+ if (!idClaim) throw new Error('JWT missing subject');
+ const n = Number.parseInt(idClaim, 10);
+ if (!Number.isFinite(n)) throw new Error('JWT subject must be a number');
+ return n;
+ })(),
+ username:
+ decoded.name ??
+ // common alternates
+ (decoded as Record<string, string | undefined>)['preferred_username'] ??
+ (decoded as Record<string, string | undefined>)['unique_name'] ??
+ '',
token
};
}Optionally consider changing DecodedUser.id to string for broader interoperability.
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Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| export function extractUserFromToken(token: string): DecodedUser { | |
| const decoded = decodeJwt(token); | |
| return { | |
| id: parseInt(decoded.sub || decoded.nameid, 10), | |
| username: decoded.name, | |
| token | |
| }; | |
| } | |
| export function extractUserFromToken(token: string): DecodedUser { | |
| const decoded = decodeJwt(token); | |
| return { | |
| id: (() => { | |
| const idClaim = decoded.sub ?? decoded.nameid; | |
| if (!idClaim) throw new Error('JWT missing subject'); | |
| const n = Number.parseInt(idClaim, 10); | |
| if (!Number.isFinite(n)) throw new Error('JWT subject must be a number'); | |
| return n; | |
| })(), | |
| username: | |
| decoded.name ?? | |
| // common alternates | |
| (decoded as Record<string, string | undefined>)['preferred_username'] ?? | |
| (decoded as Record<string, string | undefined>)['unique_name'] ?? | |
| '', | |
| token | |
| }; | |
| } |
🤖 Prompt for AI Agents
In MySvelteApp.Client/src/lib/utils/jwt.ts around lines 47 to 55, the current
extractUserFromToken uses parseInt(decoded.sub || decoded.nameid, 10) which can
produce NaN for non‑numeric subs and does not validate username; update the
function to validate the id and username and fail fast: check that either
decoded.sub or decoded.nameid exists and is a numeric string before calling
parseInt (throw a clear Error if missing or not numeric), ensure decoded.name
(username) exists and throw if absent, and include the original token or claim
info in the thrown error message for debugging; optionally change DecodedUser.id
to string and return the raw claim instead of parseInt if you need broader
interoperability.
| export function withRateLimit( | ||
| rateLimiter: RateLimiter, | ||
| action: () => Promise<any> | ||
| ): Promise<{ success: boolean; error?: string; data?: any }> { | ||
| return new Promise((resolve) => { |
There was a problem hiding this comment.
Fix ESLint “no-explicit-any” and simplify promise handling with generics.
Make withRateLimit generic, return a discriminated union, and avoid manual new Promise. This resolves pipeline failures and improves types.
Apply:
-export function withRateLimit(
- rateLimiter: RateLimiter,
- action: () => Promise<any>
-): Promise<{ success: boolean; error?: string; data?: any }> {
- return new Promise((resolve) => {
- const limit = rateLimiter.checkLimit();
- if (!limit.allowed) {
- const resetTime = rateLimiter.getFormattedResetTime();
- resolve({
- success: false,
- error: `Too many attempts. Please try again in ${resetTime}.`
- });
- return;
- }
- // Record the attempt
- rateLimiter.recordAttempt();
- // Execute the action
- action()
- .then((data) => {
- // Clear attempts on success
- rateLimiter.clearAttempts();
- resolve({ success: true, data });
- })
- .catch((error) => {
- resolve({ success: false, error: error.message || 'An error occurred' });
- });
- });
-}
+export async function withRateLimit<T>(
+ rateLimiter: RateLimiter,
+ action: () => Promise<T>
+): Promise<{ success: true; data: T } | { success: false; error: string }> {
+ const limit = rateLimiter.checkLimit();
+ if (!limit.allowed) {
+ const resetTime = rateLimiter.getFormattedResetTime();
+ return {
+ success: false,
+ error: `Too many attempts. Please try again in ${resetTime || 'a moment'}.`
+ };
+ }
+ rateLimiter.recordAttempt();
+ try {
+ const data = await action();
+ rateLimiter.clearAttempts();
+ return { success: true, data };
+ } catch (error) {
+ const message = error instanceof Error ? error.message : 'An error occurred';
+ return { success: false, error: message };
+ }
+}Also applies to: 168-179
🧰 Tools
🪛 GitHub Check: Code Quality Checks
[failure] 152-152:
Unexpected any. Specify a different type
[failure] 151-151:
Unexpected any. Specify a different type
🪛 GitHub Actions: Code Quality
[error] 151-151: Step: prettier --check . && eslint .; ESLint: Unexpected any. Specify a different type. (@typescript-eslint/no-explicit-any)
| // Validate token format | ||
| if (!isValidTokenFormat(token)) { | ||
| log.warn('Invalid token format, redirecting to login page'); | ||
| cookies.delete('auth_token', { path: '/' }); | ||
| return redirect(302, '/login'); | ||
| } | ||
|
|
||
| // Since the TestAuth endpoint doesn't return user data, we'll return a basic user object | ||
| // Check if token is expired | ||
| if (isTokenExpired(token)) { | ||
| log.warn('Token expired, redirecting to login page'); | ||
| cookies.delete('auth_token', { path: '/' }); | ||
| return redirect(302, '/login'); | ||
| } |
There was a problem hiding this comment.
Critical: Accepting unverified JWTs enables account forgery. Verify signatures server-side.
Don’t rely on format/exp-only checks. Verify with a secret or JWKS (jose), then derive user from the verified payload.
Apply this illustrative refactor (assumes env-based config):
+import { env } from '$env/dynamic/private';
+import { jwtVerify, createRemoteJWKSet } from 'jose';
+
export const load: LayoutServerLoad = async ({ cookies }) => {
const token = cookies.get('auth_token');
const log = logger;
if (!token) {
log.warn('User is not authenticated, redirecting to login page');
- return redirect(302, '/login');
+ throw redirect(302, '/login');
}
- // Validate token format
- if (!isValidTokenFormat(token)) {
- log.warn('Invalid token format, redirecting to login page');
- cookies.delete('auth_token', { path: '/' });
- return redirect(302, '/login');
- }
-
- // Check if token is expired
- if (isTokenExpired(token)) {
- log.warn('Token expired, redirecting to login page');
- cookies.delete('auth_token', { path: '/' });
- return redirect(302, '/login');
- }
-
- // Extract user data from JWT
+ // Verify signature and claims
try {
- const user = extractUserFromToken(token);
+ const verifier = env.AUTH_JWKS_URL
+ ? createRemoteJWKSet(new URL(env.AUTH_JWKS_URL))
+ : new TextEncoder().encode(env.JWT_SECRET ?? '');
+ const { payload } = await jwtVerify(token, verifier, {
+ issuer: env.JWT_ISSUER,
+ audience: env.JWT_AUDIENCE
+ });
+ const user = {
+ id: Number.parseInt(String(payload.sub ?? payload['nameid'] ?? ''), 10),
+ username:
+ String(payload.name ??
+ payload['preferred_username'] ??
+ payload['unique_name'] ?? '')
+ };
+ if (!Number.isFinite(user.id) || !user.username) {
+ throw new Error('Required claims missing');
+ }
return {
user: {
- id: user.id,
- name: user.username
+ id: user.id,
+ name: user.username
}
};
} catch (error) {
- log.error({ err: error }, 'Token decoding failed, redirecting to login page');
+ log.error({ err: error }, 'Token verification failed, redirecting to login page');
cookies.delete('auth_token', { path: '/' });
- return redirect(302, '/login');
+ throw redirect(302, '/login');
}
};Also applies to: 35-48
🤖 Prompt for AI Agents
In MySvelteApp.Client/src/routes/(app)/+layout.server.ts around lines 21 to 33
(and also apply same fix to 35-48), the code only checks token format and exp
which allows unverified JWTs to be accepted; replace these checks with full
server-side signature verification using a configured secret or JWKS (e.g., via
the jose library), catch verification errors and on failure delete the auth
cookie and redirect to /login, and on success derive the user identity from the
verified payload (not from the unverified token), using environment-based config
for the secret/JWKS URL and appropriate error logging.
| // Check rate limit before submitting | ||
| const limit = registerRateLimiter.checkLimit(); | ||
| if (!limit.allowed) { | ||
| const resetTime = registerRateLimiter.getFormattedResetTime(); | ||
| error = `Too many registration attempts. Please try again in ${resetTime}.`; | ||
| return; | ||
| } | ||
|
|
There was a problem hiding this comment.
Same bug as login: attempts aren’t recorded.
Pre-check runs, but without recordAttempt() the local limit never advances.
Apply:
const limit = registerRateLimiter.checkLimit();
if (!limit.allowed) {
- const resetTime = registerRateLimiter.getFormattedResetTime();
- error = `Too many registration attempts. Please try again in ${resetTime}.`;
+ const resetTime = registerRateLimiter.getFormattedResetTime();
+ error = `Too many registration attempts. Please try again in ${resetTime || 'a moment'}.`;
return;
}
try {
+ // Count this attempt; we clear on success below.
+ registerRateLimiter.recordAttempt();
await submit();
// Clear rate limit attempts on successful registration
registerRateLimiter.clearAttempts();Also applies to: 71-77
🤖 Prompt for AI Agents
In MySvelteApp.Client/src/routes/(auth)/register/+page.svelte around lines 63-70
(and similarly 71-77), the rate limiter check only reads allowed but never
advances the local counter; after verifying limit.allowed you must call
registerRateLimiter.recordAttempt() when a registration attempt is actually made
(both on successful submission start and on failed attempts where you still want
to count them) so the local limit state progresses—insert calls to
recordAttempt() at the appropriate points immediately after confirming the
attempt will proceed or should be counted.
| public string Message { get; set; } = string.Empty; | ||
| public AuthErrorType ErrorType { get; set; } = AuthErrorType.None; | ||
| } |
There was a problem hiding this comment.
🧩 Analysis chain
Client/server schema drift: client type lacks errorType.
Client api/schema/types.gen.ts defines only message, but server now returns ErrorType. Regenerate client API types or add a manual type to include errorType to avoid unsafe any downstream.
🏁 Script executed:
#!/bin/bash
# Find generated AuthErrorResponse and usages expecting only message
rg -nC2 '\btype\s+AuthErrorResponse\b' MySvelteApp.Client | cat
rg -nC2 '\berrorType\b' MySvelteApp.Client | catLength of output: 2220
Regenerate client API types — AuthErrorResponse missing errorType
MySvelteApp.Client/api/schema/types.gen.ts defines AuthErrorResponse only as { message?: string | null } (lines ~3–5) while the server model MySvelteApp.Server/Presentation/Models/Auth/AuthErrorResponse.cs exposes ErrorType (lines 7–9); regenerate the @hey-api/openapi-ts client types or add a manual errorType property and update usages (see MySvelteApp.Client/src/lib/auth/error-messages.ts lines ~118–121).
🤖 Prompt for AI Agents
In MySvelteApp.Server/Presentation/Models/Auth/AuthErrorResponse.cs around lines
7–9 the server model exposes ErrorType but the generated client types
(MySvelteApp.Client/api/schema/types.gen.ts) do not include it; regenerate the
client OpenAPI types with @hey-api/openapi-ts so AuthErrorResponse includes
errorType, then update usages (notably
MySvelteApp.Client/src/lib/auth/error-messages.ts around lines ~118–121) to read
the new errorType property; if regeneration is not possible immediately, add a
temporary manual errorType field to the generated client type and update the
consuming code to handle errorType consistently, then regenerate and remove the
manual patch.
| options.GlobalLimiter = PartitionedRateLimiter.Create<HttpContext, string>(httpContext => | ||
| RateLimitPartition.GetFixedWindowLimiter( | ||
| partitionKey: httpContext.Connection.RemoteIpAddress?.ToString() ?? "unknown", | ||
| factory: partition => new FixedWindowRateLimiterOptions | ||
| { | ||
| AutoReplenishment = true, | ||
| PermitLimit = 100, // 100 requests per window | ||
| Window = TimeSpan.FromMinutes(1), // per minute | ||
| QueueProcessingOrder = QueueProcessingOrder.OldestFirst, | ||
| QueueLimit = 0, // No queuing, reject immediately | ||
| } | ||
| ) | ||
| ); |
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🧩 Analysis chain
IP-based partitioning will misbehave behind proxies/load balancers. Configure ForwardedHeaders.
RemoteIpAddress will be the proxy address unless forwarded headers are enabled and trusted. Otherwise, rate limits collapse many users into one or allow trivial evasion.
Add this near startup and before UseRateLimiter():
// Configure once at startup
builder.Services.Configure<ForwardedHeadersOptions>(o =>
{
o.ForwardedHeaders = ForwardedHeaders.XForwardedFor | ForwardedHeaders.XForwardedProto;
// TODO: set KnownProxies/KnownNetworks to your infra; examples:
// o.KnownProxies.Add(IPAddress.Parse("10.0.0.10"));
});
// In the pipeline, before rate limiting
app.UseForwardedHeaders();Please confirm whether the app sits behind a reverse proxy/CDN so we can populate KnownProxies/KnownNetworks correctly.
Also applies to: 119-131
🏁 Script executed:
#!/bin/bash
# Search for ForwardedHeaders configuration and usage in C# files
rg -n "UseForwardedHeaders" -g "*.cs"
rg -n "ForwardedHeadersOptions" -g "*.cs"
rg -n "ForwardedHeaders\." -g "*.cs"Length of output: 0
🏁 Script executed:
#!/bin/bash
set -euo pipefail
echo "PWD: $(pwd)"
echo "----- Check specific file path -----"
if [ -f "MySvelteApp.Server/Program.cs" ]; then
echo "=== MySvelteApp.Server/Program.cs (first 250 lines) ==="
nl -ba MySvelteApp.Server/Program.cs | sed -n '1,250p'
else
echo "MySvelteApp.Server/Program.cs not found at that path."
fi
echo "----- Searching repo for relevant tokens -----"
rg -n --hidden --glob '!**/bin/**' --glob '!**/obj/**' -S "UseRateLimiter|UseForwardedHeaders|ForwardedHeadersOptions|ForwardedHeaders|KnownProxies|KnownNetworks|X-Forwarded-For|X-Forwarded-Proto|RemoteIpAddress|PartitionedRateLimiter|GlobalLimiter|RateLimitPartition|UseForwardedHeaders" || true
echo "----- If Program.cs wasn't at the expected path, list Program.cs files -----"
rg -n --hidden --glob '!**/bin/**' --glob '!**/obj/**' "Program.cs$" -S || trueLength of output: 157
🏁 Script executed:
#!/bin/bash
set -euo pipefail
echo "PWD: $(pwd)"
echo "---- Locate Program.cs files ----"
rg -n --hidden --glob '!**/bin/**' --glob '!**/obj/**' --files | rg 'Program.cs$' -n || true
echo "---- Print MySvelteApp.Server/Program.cs (if exists) ----"
if [ -f "MySvelteApp.Server/Program.cs" ]; then
echo "=== MySvelteApp.Server/Program.cs (lines 1-260) ==="
sed -n '1,260p' MySvelteApp.Server/Program.cs || true
else
echo "MySvelteApp.Server/Program.cs not present at that path."
fi
echo "---- Grep repository for forwarding/rate-limit tokens ----"
rg -n --hidden --glob '!**/bin/**' --glob '!**/obj/**' -S "UseForwardedHeaders|ForwardedHeadersOptions|ForwardedHeaders|KnownProxies|KnownNetworks|X-Forwarded-For|X-ForwardedProto|X-Forwarded-Proto|RemoteIpAddress|PartitionedRateLimiter|RateLimitPartition|GlobalLimiter|UseRateLimiter" || true
echo "---- List top-level .cs files (first 100) to help manual locate ----"
rg -n --hidden --glob '!**/bin/**' --glob '!**/obj/**' --files -g '*.cs' | head -n 100 || trueLength of output: 12771
Enable and trust forwarded headers before IP-based rate limiting
httpContext.Connection.RemoteIpAddress will be the proxy/load‑balancer IP unless ForwardedHeaders are enabled and trusted; using it for PartitionedRateLimiter will collapse many users into one bucket or allow trivial evasion.
Add this at startup (and call UseForwardedHeaders() before UseRateLimiter()):
// Configure once at startup
builder.Services.Configure<ForwardedHeadersOptions>(o =>
{
o.ForwardedHeaders = ForwardedHeaders.XForwardedFor | ForwardedHeaders.XForwardedProto;
// TODO: set KnownProxies/KnownNetworks to your infra; examples:
// o.KnownProxies.Add(IPAddress.Parse("10.0.0.10"));
});
// In the pipeline, before rate limiting
app.UseForwardedHeaders();Location: MySvelteApp.Server/Program.cs — where options.GlobalLimiter and the "auth-strict" policy use httpContext.Connection.RemoteIpAddress. Confirm whether the app sits behind a reverse proxy/CDN so KnownProxies/KnownNetworks can be populated.
| // Configure specific rate limiting for auth endpoints | ||
| app.MapControllers().RequireRateLimiting(); | ||
|
|
There was a problem hiding this comment.
Parameterless RequireRateLimiting() won’t compile.
MapControllers().RequireRateLimiting() requires a policy name. Global limiter already applies; drop the call.
-app.MapControllers().RequireRateLimiting();
+app.MapControllers();📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| // Configure specific rate limiting for auth endpoints | |
| app.MapControllers().RequireRateLimiting(); | |
| // Configure specific rate limiting for auth endpoints | |
| app.MapControllers(); |
🤖 Prompt for AI Agents
In MySvelteApp.Server/Program.cs around lines 284 to 286, the call
MapControllers().RequireRateLimiting() is invalid because RequireRateLimiting
requires a policy name and the app already has a global rate limiter; remove the
.RequireRateLimiting() invocation from the MapControllers() chain (or, if you
intended an endpoint-specific policy, replace it with
RequireRateLimiting("PolicyName") using the configured policy name).
| app.MapPost( | ||
| "/Auth/login", | ||
| async (IAuthService authService, LoginRequest request) => | ||
| { | ||
| var result = await authService.LoginAsync(request); | ||
| return result.Success ? Results.Ok(result) : Results.BadRequest(result); | ||
| } | ||
| ) | ||
| .RequireRateLimiting(policyName: "auth-strict"); | ||
|
|
There was a problem hiding this comment.
Login/Register are blocked by the fallback authorization policy; add AllowAnonymous().
Because a fallback policy requires auth for all endpoints (Lines 91-93), these unauthenticated auth endpoints will return 401. Mark them as anonymous.
Apply this diff:
app.MapPost(
"/Auth/login",
async (IAuthService authService, LoginRequest request) =>
{
var result = await authService.LoginAsync(request);
return result.Success ? Results.Ok(result) : Results.BadRequest(result);
}
)
- .RequireRateLimiting(policyName: "auth-strict");
+ .RequireRateLimiting(policyName: "auth-strict")
+ .AllowAnonymous();
app.MapPost(
"/Auth/register",
async (IAuthService authService, RegisterRequest request) =>
{
var result = await authService.RegisterAsync(request);
return result.Success ? Results.Ok(result) : Results.BadRequest(result);
}
)
- .RequireRateLimiting(policyName: "auth-strict");
+ .RequireRateLimiting(policyName: "auth-strict")
+ .AllowAnonymous();Also applies to: 301-309
🤖 Prompt for AI Agents
In MySvelteApp.Server/Program.cs around lines 291-300 (and similarly 301-309),
the Login and Register endpoints are being blocked by the global fallback
authorization policy; update each endpoint to allow unauthenticated access by
chaining .AllowAnonymous() to the MapPost call (i.e., after
.RequireRateLimiting(...), add .AllowAnonymous()) so these auth routes return
their intended responses without requiring authentication.
Summary by CodeRabbit