🚀 SqlInjectionGuardToolKit

SqlInjectionGuardToolKit is a lightweight, enterprise-grade SQL Injection detection and sanitization library for .NET.

It helps developers automatically validate and sanitize potentially dangerous SQL patterns in user input with minimal configuration.

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🎯 Why This Library Matters ⭐⭐⭐⭐⭐

SQL Injection is one of the most critical security vulnerabilities.

Without protection:

❌ Database compromise
❌ Data leakage
❌ Unauthorized data manipulation
❌ Full system takeover

This toolkit provides:

✅ Automatic validation
✅ Safe input handling
✅ Attribute-driven protection
✅ Type-safe string design
✅ DTO sanitization
✅ MVC Filter / Middleware integration

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✅ Key Features ⭐⭐⭐⭐⭐🔥

✔ SQL Injection Pattern Detection
✔ Automatic Sanitization
✔ Attribute-Based Validation
✔ SafeSqlString Type
✔ MVC Filter Integration
✔ Middleware Support
✔ Console Validation Support
✔ CLI Tool Support
✔ Minimal Performance Overhead

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📦 Installation

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✅ NuGet Package Manager

✅ 1️⃣ Enable SQL Injection Guard (Web API)

Register services:

builder.Services.AddControllers(); builder.Services.AddSqlInjectionGuard();

or

app.UseSqlInjectionGuard();

#✅ 2️⃣ DTO Validation (Attribute Mode)

Global Validation (Validate ALL string properties)

[SafeClassString] public class CreateUserRequest { public string Name { get; set; } public string Email { get; set; } }

Selective Validation (Validate specific properties)

public class SearchRequest { [SafeString] public string Keyword { get; set; } public string SortOrder { get; set; } }

✅ 3️⃣ Type-Safe Protection (Recommended ⭐⭐⭐⭐⭐🔥)

public class TestModel { public SafeSqlProps Name { get; set; } public string? Username { get; set; } }

✅ 3️⃣ Type-Safe Protection Individual String Check (Recommended ⭐⭐⭐⭐⭐🔥)

public class TestModel { public SafeSqlProps Name { get; set; } public string? Username { get; set; } } model.Username.VerifySQlString();

#🧠 How It Works

✅ Validation Flow

User Input ↓ SqlInjectionValidator ↓ Pattern Detection Engine ↓ Sanitization Logic ↓ Safe Output