fix: Move error reporting from Vercel Serverless to Express

This commit is contained in:
2026-01-02 15:40:04 +01:00
parent 6f5f539c91
commit 84a6de8eef
3 changed files with 50 additions and 210 deletions

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@@ -1,203 +0,0 @@
import type { VercelRequest, VercelResponse } from '@vercel/node'
/**
* Vercel Serverless Function for Error Reporting
* Receives error reports and forwards to Discord webhook
* Rate limited: 10 req/min/IP
*/
interface ErrorReportPayload {
error: string
stack?: string
context: {
version: string
platform: string
arch: string
nodeVersion: string
timestamp: string
botMode?: string
}
additionalContext?: Record<string, unknown>
}
interface DiscordEmbed {
title: string
description: string
color: number
fields: Array<{ name: string; value: string; inline: boolean }>
timestamp: string
footer: { text: string }
}
// Rate limiting configuration (in-memory, resets on cold start)
const rateLimitMap = new Map<string, { count: number; resetTime: number }>()
const RATE_LIMIT_WINDOW_MS = 60 * 1000 // 1 minute
const RATE_LIMIT_MAX_REQUESTS = 10 // 10 requests per minute per IP
// Discord color constants
const DISCORD_COLOR_RED = 0xdc143c
const DISCORD_AVATAR_URL = 'https://raw.githubusercontent.com/LightZirconite/Microsoft-Rewards-Bot/refs/heads/main/assets/logo.png'
/**
* Check if IP is rate limited
*/
function isRateLimited(ip: string, secret?: string): boolean {
// Bypass rate limit if valid secret provided
const validSecret = process.env.RATE_LIMIT_SECRET
if (secret && validSecret && secret === validSecret) {
return false
}
const now = Date.now()
const entry = rateLimitMap.get(ip)
if (!entry || now > entry.resetTime) {
// Reset or create new entry
rateLimitMap.set(ip, { count: 1, resetTime: now + RATE_LIMIT_WINDOW_MS })
return false
}
if (entry.count >= RATE_LIMIT_MAX_REQUESTS) {
return true
}
entry.count++
return false
}
/**
* Build Discord embed from error report
*/
function buildDiscordEmbed(payload: ErrorReportPayload): DiscordEmbed {
const { error, stack, context } = payload
const osPlatform = (() => {
switch (context.platform) {
case 'win32': return '🪟 Windows'
case 'darwin': return '🍎 macOS'
case 'linux': return '🐧 Linux'
default: return context.platform
}
})()
const embed: DiscordEmbed = {
title: '🐛 Community Error Report',
description: `\`\`\`js\n${error.slice(0, 700)}\n\`\`\``,
color: DISCORD_COLOR_RED,
fields: [
{ name: '📦 Version', value: context.version === 'unknown' ? '⚠️ Unknown' : `v${context.version}`, inline: true },
{ name: '🤖 Bot Mode', value: context.botMode || 'UNKNOWN', inline: true },
{ name: '💻 OS Platform', value: `${osPlatform} ${context.arch}`, inline: true },
{ name: '⚙️ Node.js', value: context.nodeVersion, inline: true },
{ name: '🕐 Timestamp', value: new Date(context.timestamp).toLocaleString('en-US', { timeZone: 'UTC', timeZoneName: 'short' }), inline: false }
],
timestamp: context.timestamp,
footer: { text: 'Community Error Reporting • Vercel Serverless • Non-sensitive data only' }
}
if (stack) {
const truncated = stack.slice(0, 900)
const wasTruncated = stack.length > 900
embed.fields.push({
name: '📋 Stack Trace' + (wasTruncated ? ' (truncated)' : ''),
value: `\`\`\`js\n${truncated}${wasTruncated ? '\n... (truncated for display)' : ''}\n\`\`\``,
inline: false
})
}
return embed
}
/**
* Main handler for error reporting endpoint
*/
export default async function handler(req: VercelRequest, res: VercelResponse) {
// Enable CORS for all origins (error reporting should be accessible)
res.setHeader('Access-Control-Allow-Origin', '*')
res.setHeader('Access-Control-Allow-Methods', 'POST, OPTIONS')
res.setHeader('Access-Control-Allow-Headers', 'Content-Type, X-Rate-Limit-Secret')
// Handle preflight requests
if (req.method === 'OPTIONS') {
return res.status(200).end()
}
// Only accept POST requests
if (req.method !== 'POST') {
return res.status(405).json({ error: 'Method not allowed', message: 'Only POST requests are accepted' })
}
try {
// Get client IP for rate limiting
const ip = (req.headers['x-forwarded-for'] as string)?.split(',')[0]?.trim() ||
(req.headers['x-real-ip'] as string) ||
'unknown'
// Get rate limit secret from headers
const rateLimitSecret = req.headers['x-rate-limit-secret'] as string | undefined
// Check rate limit
if (isRateLimited(ip, rateLimitSecret)) {
return res.status(429).json({
error: 'Rate limit exceeded',
message: 'Maximum 10 requests per minute per IP. Please try again later.'
})
}
// Validate Discord webhook URL is configured
const webhookUrl = process.env.DISCORD_ERROR_WEBHOOK_URL
if (!webhookUrl) {
console.error('[ErrorReporting] DISCORD_ERROR_WEBHOOK_URL not configured')
return res.status(500).json({
error: 'Configuration error',
message: 'Discord webhook not configured. Please contact the administrator.'
})
}
// Validate request body
const payload = req.body as ErrorReportPayload
if (!payload || !payload.error || !payload.context) {
return res.status(400).json({
error: 'Invalid payload',
message: 'Missing required fields: error, context'
})
}
// Build Discord embed
const embed = buildDiscordEmbed(payload)
// Send to Discord webhook
const discordPayload = {
username: 'Microsoft-Rewards-Bot Error Reporter',
avatar_url: DISCORD_AVATAR_URL,
embeds: [embed]
}
const response = await fetch(webhookUrl, {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify(discordPayload)
})
if (!response.ok) {
console.error('[ErrorReporting] Discord webhook failed:', response.status, response.statusText)
return res.status(502).json({
error: 'Discord webhook failed',
message: `HTTP ${response.status}: ${response.statusText}`
})
}
// Success
return res.status(200).json({
success: true,
message: 'Error report sent successfully'
})
} catch (error) {
console.error('[ErrorReporting] Unexpected error:', error)
return res.status(500).json({
error: 'Internal server error',
message: error instanceof Error ? error.message : 'Unknown error occurred'
})
}
}

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@@ -93,6 +93,56 @@ export class DashboardServer {
res.json({ status: 'ok', uptime: process.uptime() })
})
// Error reporting endpoint (community error collection)
this.app.post('/api/report-error', this.apiLimiter, async (req, res) => {
try {
const webhookUrl = process.env.DISCORD_ERROR_WEBHOOK_URL
if (!webhookUrl) {
dashLog('Error reporting: DISCORD_ERROR_WEBHOOK_URL not configured', 'warn')
return res.status(503).json({ error: 'Error reporting service unavailable' })
}
const payload = req.body
if (!payload?.error) {
return res.status(400).json({ error: 'Invalid payload' })
}
// Build Discord embed
const embed = {
title: '🔴 Bot Error Report',
description: `\`\`\`\n${String(payload.error).slice(0, 1900)}\n\`\`\``,
color: 0xdc143c,
fields: [
{ name: 'Version', value: String(payload.context?.version || 'unknown'), inline: true },
{ name: 'Platform', value: String(payload.context?.platform || 'unknown'), inline: true },
{ name: 'Node', value: String(payload.context?.nodeVersion || 'unknown'), inline: true }
],
timestamp: new Date().toISOString(),
footer: { text: 'Community Error Reporting' }
}
if (payload.stack) {
const stackLines = String(payload.stack).split('\n').slice(0, 15).join('\n')
embed.fields.push({ name: 'Stack Trace', value: `\`\`\`\n${stackLines.slice(0, 1000)}\n\`\`\``, inline: false })
}
// Send to Discord (use native axios, not AxiosClient)
const axios = (await import('axios')).default
await axios.post(webhookUrl, {
username: 'Microsoft Rewards Bot',
avatar_url: 'https://raw.githubusercontent.com/LightZirconite/Microsoft-Rewards-Bot/refs/heads/main/assets/logo.png',
embeds: [embed]
}, { timeout: 10000 })
dashLog('Error report sent to Discord', 'log')
return res.json({ success: true, message: 'Error report received' })
} catch (error) {
dashLog(`Error reporting failed: ${error instanceof Error ? error.message : String(error)}`, 'error')
return res.status(500).json({ error: 'Failed to send error report' })
}
})
// Serve dashboard UI
this.app.get('/', this.dashboardLimiter, (_req, res) => {
const indexPath = path.join(__dirname, '../../public/index.html')

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@@ -1,7 +0,0 @@
{
"functions": {
"api/**/*.ts": {
"runtime": "@vercel/node@3"
}
}
}