mirror of
https://github.com/fosrl/pangolin.git
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Merge branch 'main' into dev
This commit is contained in:
@@ -72,6 +72,43 @@ export class RateLimitService {
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return `ratelimit:${clientId}:${messageType}`;
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}
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// Helper function to clean up old timestamp fields from a Redis hash
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private async cleanupOldTimestamps(key: string, windowStart: number): Promise<void> {
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if (!redisManager.isRedisEnabled()) return;
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try {
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const client = redisManager.getClient();
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if (!client) return;
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// Get all fields in the hash
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const allData = await redisManager.hgetall(key);
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if (!allData || Object.keys(allData).length === 0) return;
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// Find fields that are older than the window
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const fieldsToDelete: string[] = [];
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for (const timestamp of Object.keys(allData)) {
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const time = parseInt(timestamp);
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if (time < windowStart) {
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fieldsToDelete.push(timestamp);
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}
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}
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// Delete old fields in batches to avoid call stack size exceeded errors
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// The spread operator can cause issues with very large arrays
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if (fieldsToDelete.length > 0) {
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const batchSize = 1000; // Process 1000 fields at a time
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for (let i = 0; i < fieldsToDelete.length; i += batchSize) {
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const batch = fieldsToDelete.slice(i, i + batchSize);
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await client.hdel(key, ...batch);
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}
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logger.debug(`Cleaned up ${fieldsToDelete.length} old timestamp fields from ${key}`);
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}
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} catch (error) {
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logger.error(`Failed to cleanup old timestamps for key ${key}:`, error);
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// Don't throw - cleanup failures shouldn't block rate limiting
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}
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}
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// Helper function to sync local rate limit data to Redis
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private async syncRateLimitToRedis(
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clientId: string,
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@@ -81,8 +118,12 @@ export class RateLimitService {
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try {
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const currentTime = Math.floor(Date.now() / 1000);
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const windowStart = currentTime - RATE_LIMIT_WINDOW;
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const globalKey = this.getRateLimitKey(clientId);
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// Clean up old timestamp fields before writing
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await this.cleanupOldTimestamps(globalKey, windowStart);
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// Get current value and add pending count
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const currentValue = await redisManager.hget(
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globalKey,
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@@ -93,7 +134,7 @@ export class RateLimitService {
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).toString();
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await redisManager.hset(globalKey, currentTime.toString(), newValue);
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// Set TTL using the client directly
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// Set TTL using the client directly - this prevents the key from persisting forever
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if (redisManager.getClient()) {
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await redisManager
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.getClient()
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@@ -119,8 +160,12 @@ export class RateLimitService {
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try {
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const currentTime = Math.floor(Date.now() / 1000);
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const windowStart = currentTime - RATE_LIMIT_WINDOW;
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const messageTypeKey = this.getMessageTypeRateLimitKey(clientId, messageType);
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// Clean up old timestamp fields before writing
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await this.cleanupOldTimestamps(messageTypeKey, windowStart);
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// Get current value and add pending count
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const currentValue = await redisManager.hget(
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messageTypeKey,
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@@ -135,7 +180,7 @@ export class RateLimitService {
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newValue
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);
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// Set TTL using the client directly
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// Set TTL using the client directly - this prevents the key from persisting forever
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if (redisManager.getClient()) {
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await redisManager
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.getClient()
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@@ -170,6 +215,10 @@ export class RateLimitService {
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try {
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const globalKey = this.getRateLimitKey(clientId);
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// Clean up old timestamp fields before reading
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await this.cleanupOldTimestamps(globalKey, windowStart);
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const globalRateLimitData = await redisManager.hgetall(globalKey);
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let count = 0;
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@@ -215,6 +264,10 @@ export class RateLimitService {
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try {
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const messageTypeKey = this.getMessageTypeRateLimitKey(clientId, messageType);
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// Clean up old timestamp fields before reading
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await this.cleanupOldTimestamps(messageTypeKey, windowStart);
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const messageTypeRateLimitData = await redisManager.hgetall(messageTypeKey);
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let count = 0;
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