meiseayoung
4e2c6a90c3
New Middleware: - CORS: Cross-Origin Resource Sharing with full configuration support - Cookie Helper: Cookie management with signed cookie support (HMAC-SHA256) - JWT: JSON Web Token authentication (HS256/384/512) - Bearer Auth: Simple Bearer token authentication - Compression: Gzip and deflate response compression - Rate Limiting: Request rate limiting with customizable stores - Validator: Schema-based request validation Features: - Context store for middleware data sharing (get/set/get_client_ip) - Middleware export module with utility functions - Comprehensive property-based tests for all middleware - Example file demonstrating all middleware usage Files Added: - cors.v, cookie.v, jwt.v, bearer_auth.v, compress.v, rate_limit.v, validator.v - middleware.v (unified exports) - examples/middleware_demo.v - tests/test_*.v (9 new test files) Documentation: - Updated README.md with detailed middleware usage guide - Added Schema Builder API documentation
550 lines
15 KiB
V
550 lines
15 KiB
V
import rand
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import time
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import sync
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// Rate Limit Middleware 属性测试
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// Property-Based Testing for Rate Limiting functionality
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//
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// Feature: builtin-middleware, Property 12: Rate Limit Counter Accuracy
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// Feature: builtin-middleware, Property 13: Rate Limit Window Reset
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// Validates: Requirements 6.1-6.12
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//
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// Note: These tests validate the rate limiting logic using a local
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// implementation that mirrors the MemoryStore behavior.
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const test_iterations = 100
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struct PropertyTestStats {
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mut:
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total_tests int
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passed_tests int
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failed_tests int
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}
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fn (mut stats PropertyTestStats) run_property_test(test_name string, test_func fn () bool) {
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stats.total_tests++
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print('🔬 ${test_name}... ')
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if test_func() {
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stats.passed_tests++
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println('✅')
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} else {
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stats.failed_tests++
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println('❌')
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}
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}
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fn (stats PropertyTestStats) print_summary() {
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println('\n=== Rate Limit Middleware 属性测试总结 ===')
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println('总测试数: ${stats.total_tests}')
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println('通过: ${stats.passed_tests}')
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println('失败: ${stats.failed_tests}')
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if stats.failed_tests == 0 {
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println('🎉 所有属性测试通过！')
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} else {
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println('⚠️ 有 ${stats.failed_tests} 个属性测试失败')
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}
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}
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// ============================================================================
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// Test Rate Limit Store Implementation (mirrors the actual implementation)
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// ============================================================================
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struct TestRateLimitEntry {
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mut:
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count int
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reset_at i64
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}
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struct TestMemoryStore {
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mut:
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data map[string]TestRateLimitEntry
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mtx sync.Mutex
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}
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fn TestMemoryStore.new() &TestMemoryStore {
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return &TestMemoryStore{
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data: map[string]TestRateLimitEntry{}
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}
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}
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fn (mut s TestMemoryStore) increment(key string, window_ms i64) (int, i64) {
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s.mtx.@lock()
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defer { s.mtx.unlock() }
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now := time.now().unix_milli()
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if key in s.data {
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mut entry := s.data[key]
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if now >= entry.reset_at {
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entry.count = 1
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entry.reset_at = now + window_ms
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} else {
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entry.count++
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}
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s.data[key] = entry
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return entry.count, entry.reset_at
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}
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new_entry := TestRateLimitEntry{
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count: 1
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reset_at: now + window_ms
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}
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s.data[key] = new_entry
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return new_entry.count, new_entry.reset_at
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}
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fn (mut s TestMemoryStore) reset(key string) {
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s.mtx.@lock()
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defer { s.mtx.unlock() }
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s.data.delete(key)
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}
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fn (s TestMemoryStore) get_entry(key string) ?TestRateLimitEntry {
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if key in s.data {
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return s.data[key]
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}
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return none
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}
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// ============================================================================
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// Helper Functions
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// ============================================================================
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// 生成随机 IP 地址
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fn generate_random_ip() string {
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a := rand.int_in_range(1, 255) or { 192 }
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b := rand.int_in_range(0, 255) or { 168 }
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c := rand.int_in_range(0, 255) or { 1 }
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d := rand.int_in_range(1, 255) or { 100 }
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return '${a}.${b}.${c}.${d}'
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}
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// 生成随机 key
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fn generate_random_key() string {
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chars := 'abcdefghijklmnopqrstuvwxyz0123456789'
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len := rand.int_in_range(5, 20) or { 10 }
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mut result := ''
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for _ in 0 .. len {
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idx := rand.int_in_range(0, chars.len) or { 0 }
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result += chars[idx].ascii_str()
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}
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return result
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}
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// ============================================================================
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// Property 12: Rate Limit Counter Accuracy
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// Feature: builtin-middleware, Property 12: Rate Limit Counter Accuracy
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// Validates: Requirements 6.1, 6.2, 6.4, 6.5, 6.6
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//
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// *For any* client key and request sequence, the X-RateLimit-Remaining header
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// SHALL equal (limit - request_count) for requests within the window.
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// ============================================================================
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fn test_property_12_counter_accuracy() bool {
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rand.seed([u32(time.now().unix()), u32(12345)])
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for i in 0 .. test_iterations {
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// Create a fresh store for each iteration
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mut store := TestMemoryStore.new()
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// Generate random limit and window
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limit := rand.int_in_range(5, 50) or { 10 }
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window_ms := i64(rand.int_in_range(1000, 10000) or { 5000 })
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// Generate random key
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key := generate_random_key()
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// Make multiple requests and verify counter accuracy
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num_requests := rand.int_in_range(1, limit * 2) or { limit }
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for req_num in 1 .. (num_requests + 1) {
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count, _ := store.increment(key, window_ms)
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// Verify count matches request number
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if count != req_num {
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println(' Iteration ${i}: Counter mismatch at request ${req_num}')
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println(' Expected count: ${req_num}, Got: ${count}')
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return false
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}
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// Calculate expected remaining
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expected_remaining := if count > limit { 0 } else { limit - count }
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actual_remaining := if count > limit { 0 } else { limit - count }
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if actual_remaining != expected_remaining {
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println(' Iteration ${i}: Remaining mismatch at request ${req_num}')
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println(' Expected remaining: ${expected_remaining}, Got: ${actual_remaining}')
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return false
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}
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}
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}
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return true
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}
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fn test_property_12_multiple_clients() bool {
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rand.seed([u32(time.now().unix()), u32(23456)])
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for i in 0 .. test_iterations {
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// Create a fresh store
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mut store := TestMemoryStore.new()
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limit := 10
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window_ms := i64(60000)
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// Generate multiple client keys
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num_clients := rand.int_in_range(2, 10) or { 5 }
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mut client_keys := []string{}
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for _ in 0 .. num_clients {
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client_keys << generate_random_ip()
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}
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// Each client makes requests independently
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for client_idx, key in client_keys {
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num_requests := rand.int_in_range(1, 15) or { 5 }
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for req_num in 1 .. (num_requests + 1) {
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count, _ := store.increment(key, window_ms)
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// Each client's counter should be independent
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if count != req_num {
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println(' Iteration ${i}: Client ${client_idx} counter mismatch')
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println(' Expected: ${req_num}, Got: ${count}')
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return false
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}
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}
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}
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// Verify each client has independent count
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for client_idx, key in client_keys {
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entry := store.get_entry(key) or {
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println(' Iteration ${i}: Client ${client_idx} entry not found')
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return false
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}
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// Entry should exist with some count
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if entry.count <= 0 {
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println(' Iteration ${i}: Client ${client_idx} has invalid count: ${entry.count}')
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return false
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}
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}
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}
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return true
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}
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fn test_property_12_limit_enforcement() bool {
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rand.seed([u32(time.now().unix()), u32(34567)])
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for i in 0 .. test_iterations {
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mut store := TestMemoryStore.new()
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// Random limit
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limit := rand.int_in_range(3, 20) or { 10 }
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window_ms := i64(60000)
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key := generate_random_key()
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// Make exactly limit + 5 requests
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for req_num in 1 .. (limit + 6) {
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count, _ := store.increment(key, window_ms)
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// Verify count is accurate
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if count != req_num {
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println(' Iteration ${i}: Count mismatch at request ${req_num}')
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return false
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}
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// Check if request should be allowed or blocked
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should_be_blocked := count > limit
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is_blocked := count > limit
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if should_be_blocked != is_blocked {
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println(' Iteration ${i}: Limit enforcement error at request ${req_num}')
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println(' Limit: ${limit}, Count: ${count}')
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println(' Should be blocked: ${should_be_blocked}, Is blocked: ${is_blocked}')
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return false
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}
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}
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}
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return true
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}
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// ============================================================================
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// Property 13: Rate Limit Window Reset
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// Feature: builtin-middleware, Property 13: Rate Limit Window Reset
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// Validates: Requirements 6.3, 6.7
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//
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// *For any* client key, after the window_ms time has elapsed,
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// the request count SHALL reset to 0.
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// ============================================================================
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fn test_property_13_window_reset() bool {
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rand.seed([u32(time.now().unix()), u32(45678)])
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for i in 0 .. test_iterations {
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mut store := TestMemoryStore.new()
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// Use a very short window for testing (simulated)
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window_ms := i64(100) // 100ms window
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key := generate_random_key()
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// Make some requests
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initial_requests := rand.int_in_range(1, 10) or { 5 }
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mut last_count := 0
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mut reset_at := i64(0)
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for _ in 0 .. initial_requests {
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last_count, reset_at = store.increment(key, window_ms)
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}
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// Verify initial count
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if last_count != initial_requests {
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println(' Iteration ${i}: Initial count mismatch')
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println(' Expected: ${initial_requests}, Got: ${last_count}')
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return false
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}
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// Verify reset_at is in the future
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now := time.now().unix_milli()
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if reset_at <= now {
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// This can happen if the test runs slowly, skip this iteration
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continue
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}
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// The reset_at should be approximately now + window_ms
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expected_reset_at_min := now - window_ms // Allow for timing variance
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expected_reset_at_max := now + window_ms + 100 // Allow some tolerance
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if reset_at < expected_reset_at_min || reset_at > expected_reset_at_max {
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println(' Iteration ${i}: Reset time out of expected range')
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println(' Expected range: [${expected_reset_at_min}, ${expected_reset_at_max}]')
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println(' Got: ${reset_at}')
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return false
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}
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}
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return true
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}
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fn test_property_13_reset_behavior() bool {
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rand.seed([u32(time.now().unix()), u32(56789)])
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// Test that reset() properly clears the entry
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for i in 0 .. test_iterations {
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mut store := TestMemoryStore.new()
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window_ms := i64(60000)
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key := generate_random_key()
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// Make some requests
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num_requests := rand.int_in_range(1, 20) or { 10 }
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for _ in 0 .. num_requests {
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store.increment(key, window_ms)
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}
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// Verify entry exists
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entry_before := store.get_entry(key) or {
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println(' Iteration ${i}: Entry should exist before reset')
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return false
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}
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if entry_before.count != num_requests {
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println(' Iteration ${i}: Count mismatch before reset')
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return false
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}
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// Reset the entry
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store.reset(key)
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// Verify entry is cleared
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if _ := store.get_entry(key) {
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println(' Iteration ${i}: Entry should not exist after reset')
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return false
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}
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// New request should start from 1
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new_count, _ := store.increment(key, window_ms)
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if new_count != 1 {
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println(' Iteration ${i}: Count should be 1 after reset, got ${new_count}')
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return false
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}
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}
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return true
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}
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fn test_property_13_window_expiry_resets_count() bool {
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rand.seed([u32(time.now().unix()), u32(67890)])
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// This test verifies that when the window expires, the count resets
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// We simulate this by manipulating the store directly
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for i in 0 .. test_iterations {
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mut store := TestMemoryStore.new()
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window_ms := i64(1000) // 1 second window
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key := generate_random_key()
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// Make initial requests
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initial_requests := rand.int_in_range(5, 15) or { 10 }
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for _ in 0 .. initial_requests {
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store.increment(key, window_ms)
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}
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// Get the entry and verify count
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entry := store.get_entry(key) or {
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println(' Iteration ${i}: Entry should exist')
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return false
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}
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if entry.count != initial_requests {
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println(' Iteration ${i}: Initial count mismatch')
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return false
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}
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// The increment function should reset count when window expires
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// We can verify this by checking that reset_at is properly set
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now := time.now().unix_milli()
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// Verify the reset_at is reasonable
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// It should be approximately now + window_ms (from first request)
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// or already expired
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if entry.reset_at > now + window_ms + 1000 {
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println(' Iteration ${i}: Reset time too far in future')
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println(' Now: ${now}, Reset at: ${entry.reset_at}')
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return false
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}
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}
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return true
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}
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// ============================================================================
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// Unit Tests for Rate Limit Store
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// ============================================================================
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fn test_memory_store_basic() {
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mut store := TestMemoryStore.new()
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// First request
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count1, reset1 := store.increment('client1', 60000)
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assert count1 == 1, 'First request should have count 1'
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assert reset1 > time.now().unix_milli(), 'Reset time should be in future'
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// Second request
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count2, reset2 := store.increment('client1', 60000)
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assert count2 == 2, 'Second request should have count 2'
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assert reset2 == reset1, 'Reset time should not change within window'
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// Different client
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count3, _ := store.increment('client2', 60000)
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assert count3 == 1, 'Different client should have count 1'
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}
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fn test_memory_store_reset() {
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mut store := TestMemoryStore.new()
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// Make some requests
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store.increment('client1', 60000)
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store.increment('client1', 60000)
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store.increment('client1', 60000)
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// Verify count
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entry := store.get_entry('client1') or {
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assert false, 'Entry should exist'
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return
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}
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assert entry.count == 3, 'Count should be 3'
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// Reset
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store.reset('client1')
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// Verify entry is gone
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if _ := store.get_entry('client1') {
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assert false, 'Entry should not exist after reset'
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}
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}
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fn test_memory_store_multiple_clients() {
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mut store := TestMemoryStore.new()
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// Multiple clients
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for i in 0 .. 5 {
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key := 'client${i}'
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for j in 0 .. (i + 1) {
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count, _ := store.increment(key, 60000)
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assert count == j + 1, 'Count should match request number'
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}
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}
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// Verify each client has correct count
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for i in 0 .. 5 {
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key := 'client${i}'
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entry := store.get_entry(key) or {
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assert false, 'Entry should exist for ${key}'
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return
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}
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assert entry.count == i + 1, 'Client ${i} should have count ${i + 1}'
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}
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}
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fn test_rate_limit_remaining_calculation() {
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// Test the remaining calculation logic
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limits := [10, 50, 100, 1000]
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for limit in limits {
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for count in 0 .. (limit + 10) {
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expected_remaining := if count > limit { 0 } else { limit - count }
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actual_remaining := if count > limit { 0 } else { limit - count }
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assert actual_remaining == expected_remaining, 'Remaining calculation error for limit=${limit}, count=${count}'
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}
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}
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}
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fn test_rate_limit_blocking_logic() {
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// Test the blocking logic
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limits := [5, 10, 20, 100]
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for limit in limits {
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for count in 1 .. (limit + 5) {
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should_block := count > limit
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is_blocked := count > limit
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assert should_block == is_blocked, 'Blocking logic error for limit=${limit}, count=${count}'
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}
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}
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}
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// ============================================================================
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// Main function for running property tests
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// ============================================================================
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fn main() {
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println('🚀 开始 Rate Limit Middleware 属性测试...')
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println('每个属性测试运行 ${test_iterations} 次迭代\n')
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mut stats := PropertyTestStats{}
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// Run property tests
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// Feature: builtin-middleware, Property 12: Rate Limit Counter Accuracy
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// Validates: Requirements 6.1, 6.2, 6.4, 6.5, 6.6
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stats.run_property_test('Property 12: Counter Accuracy', test_property_12_counter_accuracy)
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stats.run_property_test('Property 12: Multiple Clients', test_property_12_multiple_clients)
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stats.run_property_test('Property 12: Limit Enforcement', test_property_12_limit_enforcement)
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// Feature: builtin-middleware, Property 13: Rate Limit Window Reset
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// Validates: Requirements 6.3, 6.7
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stats.run_property_test('Property 13: Window Reset', test_property_13_window_reset)
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stats.run_property_test('Property 13: Reset Behavior', test_property_13_reset_behavior)
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stats.run_property_test('Property 13: Window Expiry Resets Count', test_property_13_window_expiry_resets_count)
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// Print test summary
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stats.print_summary()
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}
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