773 lines
22 KiB
TypeScript
773 lines
22 KiB
TypeScript
'use server';
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import 'server-only';
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import { ImapFlow } from 'imapflow';
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import nodemailer from 'nodemailer';
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import { prisma } from '@/lib/prisma';
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import { simpleParser } from 'mailparser';
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import {
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cacheEmailCredentials,
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getCachedEmailCredentials,
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cacheEmailList,
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getCachedEmailList,
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cacheEmailContent,
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getCachedEmailContent,
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cacheImapSession,
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getCachedImapSession,
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invalidateFolderCache,
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invalidateEmailContentCache
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} from '@/lib/redis';
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import { EmailCredentials, EmailMessage, EmailAddress, EmailAttachment } from '@/lib/types';
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// Types specific to this service
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export interface EmailListResult {
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emails: EmailMessage[];
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totalEmails: number;
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page: number;
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perPage: number;
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totalPages: number;
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folder: string;
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mailboxes: string[];
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}
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// Connection pool to reuse IMAP clients
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const connectionPool: Record<string, { client: ImapFlow; lastUsed: number }> = {};
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const CONNECTION_TIMEOUT = 5 * 60 * 1000; // 5 minutes
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// Clean up idle connections periodically
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setInterval(() => {
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const now = Date.now();
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Object.entries(connectionPool).forEach(([key, { client, lastUsed }]) => {
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if (now - lastUsed > CONNECTION_TIMEOUT) {
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console.log(`Closing idle IMAP connection for ${key}`);
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client.logout().catch(err => {
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console.error(`Error closing connection for ${key}:`, err);
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});
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delete connectionPool[key];
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}
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});
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}, 60 * 1000); // Check every minute
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/**
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* Get IMAP connection for a user, reusing existing connections when possible
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*/
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export async function getImapConnection(userId: string): Promise<ImapFlow> {
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console.log(`Getting IMAP connection for user ${userId}`);
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// First try to get credentials from Redis cache
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let credentials = await getCachedEmailCredentials(userId);
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// If not in cache, get from database and cache them
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if (!credentials) {
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console.log(`Credentials not found in cache for ${userId}, attempting database lookup`);
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credentials = await getUserEmailCredentials(userId);
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if (!credentials) {
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throw new Error('No email credentials found');
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}
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// Cache credentials for future use
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await cacheEmailCredentials(userId, credentials);
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}
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// Validate credentials
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if (!credentials.password) {
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console.error(`Missing password in credentials for user ${userId}`);
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throw new Error('No password configured');
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}
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if (!credentials.email || !credentials.host) {
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console.error(`Incomplete credentials for user ${userId}`);
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throw new Error('Invalid email credentials configuration');
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}
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const connectionKey = `${userId}:${credentials.email}`;
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const existingConnection = connectionPool[connectionKey];
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// Try to get session data from Redis
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const sessionData = await getCachedImapSession(userId);
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// Return existing connection if available and connected
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if (existingConnection) {
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try {
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if (existingConnection.client.usable) {
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existingConnection.lastUsed = Date.now();
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console.log(`Reusing existing IMAP connection for ${connectionKey}`);
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// Update session data in Redis
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if (sessionData) {
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await cacheImapSession(userId, {
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...sessionData,
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lastActive: Date.now()
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});
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}
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return existingConnection.client;
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}
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} catch (error) {
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console.warn(`Existing connection for ${connectionKey} is not usable, creating new connection`);
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// Will create a new connection below
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}
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}
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console.log(`Creating new IMAP connection for ${connectionKey}`);
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// Create new connection
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const client = new ImapFlow({
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host: credentials.host,
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port: credentials.port,
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secure: true,
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auth: {
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user: credentials.email,
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pass: credentials.password,
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},
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logger: false,
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emitLogs: false,
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tls: {
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rejectUnauthorized: false
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}
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});
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try {
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await client.connect();
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console.log(`Successfully connected to IMAP server for ${connectionKey}`);
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// Store in connection pool
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connectionPool[connectionKey] = {
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client,
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lastUsed: Date.now()
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};
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return client;
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} catch (error: unknown) {
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const errorMessage = error instanceof Error ? error.message : 'Unknown error';
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console.error(`IMAP connection error for ${connectionKey}:`, errorMessage);
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throw new Error(`Failed to connect to IMAP server: ${errorMessage}`);
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}
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}
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/**
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* Get user's email credentials from database
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*/
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export async function getUserEmailCredentials(userId: string): Promise<EmailCredentials | null> {
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const credentials = await prisma.mailCredentials.findUnique({
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where: { userId },
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select: {
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email: true,
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password: true,
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host: true,
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port: true,
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secure: true,
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smtp_host: true,
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smtp_port: true,
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smtp_secure: true,
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display_name: true,
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color: true
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}
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});
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if (!credentials) {
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return null;
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}
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// Return only the fields that exist in credentials
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return {
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email: credentials.email,
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password: credentials.password,
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host: credentials.host,
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port: credentials.port,
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...(credentials.secure !== undefined && { secure: credentials.secure }),
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...(credentials.smtp_host && { smtp_host: credentials.smtp_host }),
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...(credentials.smtp_port && { smtp_port: credentials.smtp_port }),
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...(credentials.smtp_secure !== undefined && { smtp_secure: credentials.smtp_secure }),
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...(credentials.display_name && { display_name: credentials.display_name }),
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...(credentials.color && { color: credentials.color })
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};
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}
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/**
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* Save or update user's email credentials
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*/
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export async function saveUserEmailCredentials(
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userId: string,
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credentials: EmailCredentials
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): Promise<void> {
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console.log('Saving credentials for user:', userId);
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// Extract only the fields that exist in the database schema
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const dbCredentials = {
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email: credentials.email,
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password: credentials.password ?? '',
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host: credentials.host,
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port: credentials.port
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};
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// Save to database - only using fields that exist in the schema
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await prisma.mailCredentials.upsert({
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where: { userId },
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update: dbCredentials,
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create: {
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userId,
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...dbCredentials
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}
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});
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// Cache the full credentials object in Redis (with all fields)
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await cacheEmailCredentials(userId, credentials);
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}
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// Helper type for IMAP fetch options
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interface FetchOptions {
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envelope: boolean;
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flags: boolean;
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bodyStructure: boolean;
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internalDate: boolean;
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size: boolean;
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bodyParts: { part: string; query: any; limit?: number }[];
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}
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/**
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* Get list of emails for a user
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*/
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export async function getEmails(
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userId: string,
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folder: string = 'INBOX',
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page: number = 1,
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perPage: number = 20,
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searchQuery: string = ''
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): Promise<EmailListResult> {
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// Try to get from cache first
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if (!searchQuery) {
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const cachedResult = await getCachedEmailList(userId, folder, page, perPage);
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if (cachedResult) {
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console.log(`Using cached email list for ${userId}:${folder}:${page}:${perPage}`);
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return cachedResult;
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}
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}
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console.log(`Cache miss for emails ${userId}:${folder}:${page}:${perPage}, fetching from IMAP`);
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const client = await getImapConnection(userId);
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let mailboxes: string[] = [];
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try {
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console.log(`[DEBUG] Fetching mailboxes for user ${userId}`);
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// Get list of mailboxes first
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try {
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mailboxes = await getMailboxes(client);
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console.log(`[DEBUG] Found ${mailboxes.length} mailboxes:`, mailboxes);
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// Save mailboxes in session data
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const cachedSession = await getCachedImapSession(userId);
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await cacheImapSession(userId, {
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...(cachedSession || { lastActive: Date.now() }),
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mailboxes
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});
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console.log(`[DEBUG] Updated cached session with mailboxes for user ${userId}`);
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} catch (mailboxError) {
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console.error(`[ERROR] Failed to fetch mailboxes:`, mailboxError);
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}
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// Open mailbox
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const mailboxData = await client.mailboxOpen(folder);
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const totalMessages = mailboxData.exists;
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// Calculate range based on total messages
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const endIdx = page * perPage;
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const startIdx = (page - 1) * perPage + 1;
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const from = Math.max(totalMessages - endIdx + 1, 1);
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const to = Math.max(totalMessages - startIdx + 1, 1);
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// Empty result if no messages
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if (totalMessages === 0 || from > to) {
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const result = {
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emails: [],
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totalEmails: 0,
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page,
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perPage,
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totalPages: 0,
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folder,
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mailboxes
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};
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// Cache even empty results
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if (!searchQuery) {
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await cacheEmailList(userId, folder, page, perPage, result);
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}
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return result;
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}
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// Search if needed
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let messageIds: any[] = [];
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if (searchQuery) {
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messageIds = await client.search({ body: searchQuery });
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messageIds = messageIds.filter(id => id >= from && id <= to);
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} else {
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messageIds = Array.from({ length: to - from + 1 }, (_, i) => from + i);
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}
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// Fetch messages
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const emails: EmailMessage[] = [];
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for (const id of messageIds) {
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try {
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// Define fetch options with proper typing
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const fetchOptions: any = {
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envelope: true,
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flags: true,
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bodyStructure: true,
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internalDate: true,
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size: true,
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bodyParts: [{
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part: '1',
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query: { type: "text" },
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limit: 5000
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}]
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};
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const message = await client.fetchOne(id, fetchOptions);
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if (!message) continue;
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const { envelope, flags, bodyStructure, internalDate, size, bodyParts } = message;
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// Extract preview content
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let preview = '';
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if (bodyParts && typeof bodyParts === 'object') {
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// Convert to array if it's a Map
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const partsArray = Array.isArray(bodyParts)
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? bodyParts
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: Array.from(bodyParts.values());
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const textPart = partsArray.find((part: any) => part.type === 'text/plain');
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const htmlPart = partsArray.find((part: any) => part.type === 'text/html');
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const content = textPart?.content || htmlPart?.content || '';
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if (typeof content === 'string') {
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preview = content.substring(0, 150) + '...';
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} else if (Buffer.isBuffer(content)) {
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preview = content.toString('utf-8', 0, 150) + '...';
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}
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}
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// Process attachments
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const attachments: EmailAttachment[] = [];
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const processAttachments = (node: any, path: Array<string | number> = []) => {
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if (!node) return;
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if (node.type === 'attachment') {
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attachments.push({
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contentId: node.contentId,
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filename: node.filename || 'attachment',
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contentType: node.contentType,
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size: node.size,
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path: [...path, node.part].join('.')
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});
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}
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if (node.childNodes) {
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node.childNodes.forEach((child: any, index: number) => {
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processAttachments(child, [...path, node.part || index + 1]);
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});
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}
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};
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if (bodyStructure) {
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processAttachments(bodyStructure);
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}
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// Convert flags from Set to boolean checks
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const flagsArray = Array.from(flags as Set<string>);
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emails.push({
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id: id.toString(),
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messageId: envelope.messageId,
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subject: envelope.subject || "(No Subject)",
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from: envelope.from.map((f: any) => ({
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name: f.name || f.address,
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address: f.address,
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})),
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to: envelope.to.map((t: any) => ({
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name: t.name || t.address,
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address: t.address,
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})),
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cc: (envelope.cc || []).map((c: any) => ({
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name: c.name || c.address,
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address: c.address,
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})),
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bcc: (envelope.bcc || []).map((b: any) => ({
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name: b.name || b.address,
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address: b.address,
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})),
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date: internalDate || new Date(),
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flags: {
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seen: flagsArray.includes("\\Seen"),
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flagged: flagsArray.includes("\\Flagged"),
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answered: flagsArray.includes("\\Answered"),
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deleted: flagsArray.includes("\\Deleted"),
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draft: flagsArray.includes("\\Draft"),
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},
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hasAttachments: attachments.length > 0,
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attachments,
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size,
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preview,
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folder,
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contentFetched: false
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});
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} catch (error) {
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console.error(`Error fetching message ${id}:`, error);
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}
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}
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// Sort by date, newest first
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emails.sort((a, b) => new Date(b.date).getTime() - new Date(a.date).getTime());
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const result = {
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emails,
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totalEmails: totalMessages,
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page,
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perPage,
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totalPages: Math.ceil(totalMessages / perPage),
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folder,
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mailboxes
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};
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// Always cache the result if it's not a search query, even for pagination
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if (!searchQuery) {
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console.log(`Caching email list for ${userId}:${folder}:${page}:${perPage}`);
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await cacheEmailList(userId, folder, page, perPage, result);
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}
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return result;
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} finally {
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// Don't logout, keep connection in pool
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if (folder !== 'INBOX') {
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try {
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await client.mailboxClose();
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} catch (error) {
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console.error('Error closing mailbox:', error);
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}
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}
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}
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}
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/**
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* Get a single email with full content
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*/
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export async function getEmailContent(
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userId: string,
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emailId: string,
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folder: string = 'INBOX'
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): Promise<EmailMessage> {
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// Try to get from cache first
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const cachedEmail = await getCachedEmailContent(userId, emailId);
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if (cachedEmail) {
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console.log(`Using cached email content for ${userId}:${emailId}`);
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return cachedEmail;
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}
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console.log(`Cache miss for email content ${userId}:${emailId}, fetching from IMAP`);
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const client = await getImapConnection(userId);
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try {
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await client.mailboxOpen(folder);
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const message = await client.fetchOne(emailId, {
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source: true,
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envelope: true,
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flags: true
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});
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if (!message) {
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throw new Error('Email not found');
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}
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const { source, envelope, flags } = message;
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// Parse the email content, ensuring all styles and structure are preserved
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const parsedEmail = await simpleParser(source.toString(), {
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skipHtmlToText: true, // Don't convert HTML to plain text
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keepCidLinks: true // Keep Content-ID references for inline images
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});
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// Convert flags from Set to boolean checks
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const flagsArray = Array.from(flags as Set<string>);
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// Preserve the raw HTML exactly as it was in the original email
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const rawHtml = parsedEmail.html || '';
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const email = {
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id: emailId,
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messageId: envelope.messageId,
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subject: envelope.subject || "(No Subject)",
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from: envelope.from.map((f: any) => ({
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name: f.name || f.address,
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address: f.address,
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})),
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to: envelope.to.map((t: any) => ({
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name: t.name || t.address,
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address: t.address,
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})),
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cc: (envelope.cc || []).map((c: any) => ({
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name: c.name || c.address,
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address: c.address,
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})),
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bcc: (envelope.bcc || []).map((b: any) => ({
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name: b.name || b.address,
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address: b.address,
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})),
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date: envelope.date || new Date(),
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flags: {
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seen: flagsArray.includes("\\Seen"),
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flagged: flagsArray.includes("\\Flagged"),
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answered: flagsArray.includes("\\Answered"),
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deleted: flagsArray.includes("\\Deleted"),
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draft: flagsArray.includes("\\Draft"),
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},
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hasAttachments: parsedEmail.attachments?.length > 0,
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attachments: parsedEmail.attachments?.map(att => ({
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filename: att.filename || 'attachment',
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contentType: att.contentType,
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size: att.size || 0
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})),
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// Preserve the exact raw HTML to maintain all styling
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html: rawHtml,
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text: parsedEmail.text || undefined,
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// For content field, prioritize using the raw HTML to preserve all styling
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content: rawHtml || parsedEmail.text || '',
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folder,
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contentFetched: true
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};
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// Cache the email content
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await cacheEmailContent(userId, emailId, email);
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return email;
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} finally {
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try {
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await client.mailboxClose();
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} catch (error) {
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console.error('Error closing mailbox:', error);
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}
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}
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}
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/**
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* Mark an email as read or unread
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*/
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export async function markEmailReadStatus(
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userId: string,
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emailId: string,
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isRead: boolean,
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folder: string = 'INBOX'
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): Promise<boolean> {
|
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const client = await getImapConnection(userId);
|
|
|
|
try {
|
|
await client.mailboxOpen(folder);
|
|
|
|
if (isRead) {
|
|
await client.messageFlagsAdd(emailId, ['\\Seen']);
|
|
} else {
|
|
await client.messageFlagsRemove(emailId, ['\\Seen']);
|
|
}
|
|
|
|
// Invalidate content cache since the flags changed
|
|
await invalidateEmailContentCache(userId, emailId);
|
|
|
|
// Also invalidate folder cache because unread counts may have changed
|
|
await invalidateFolderCache(userId, folder);
|
|
|
|
return true;
|
|
} catch (error) {
|
|
console.error(`Error marking email ${emailId} as ${isRead ? 'read' : 'unread'}:`, error);
|
|
return false;
|
|
} finally {
|
|
try {
|
|
await client.mailboxClose();
|
|
} catch (error) {
|
|
console.error('Error closing mailbox:', error);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Send an email
|
|
*/
|
|
export async function sendEmail(
|
|
userId: string,
|
|
emailData: {
|
|
to: string;
|
|
cc?: string;
|
|
bcc?: string;
|
|
subject: string;
|
|
body: string;
|
|
attachments?: Array<{
|
|
name: string;
|
|
content: string;
|
|
type: string;
|
|
}>;
|
|
}
|
|
): Promise<{ success: boolean; messageId?: string; error?: string }> {
|
|
const credentials = await getUserEmailCredentials(userId);
|
|
|
|
if (!credentials) {
|
|
return {
|
|
success: false,
|
|
error: 'No email credentials found'
|
|
};
|
|
}
|
|
|
|
// Create SMTP transporter with user's SMTP settings if available
|
|
const transporter = nodemailer.createTransport({
|
|
host: credentials.smtp_host || 'smtp.infomaniak.com', // Use custom SMTP or default
|
|
port: credentials.smtp_port || 587,
|
|
secure: credentials.smtp_secure || false,
|
|
auth: {
|
|
user: credentials.email,
|
|
pass: credentials.password,
|
|
},
|
|
tls: {
|
|
rejectUnauthorized: false
|
|
}
|
|
});
|
|
|
|
try {
|
|
// Verify connection
|
|
await transporter.verify();
|
|
|
|
// Prepare email options
|
|
const mailOptions = {
|
|
from: credentials.email,
|
|
to: emailData.to,
|
|
cc: emailData.cc || undefined,
|
|
bcc: emailData.bcc || undefined,
|
|
subject: emailData.subject || '(No subject)',
|
|
html: emailData.body,
|
|
attachments: emailData.attachments?.map(file => ({
|
|
filename: file.name,
|
|
content: file.content,
|
|
contentType: file.type
|
|
})) || []
|
|
};
|
|
|
|
// Send email
|
|
const info = await transporter.sendMail(mailOptions);
|
|
|
|
return {
|
|
success: true,
|
|
messageId: info.messageId
|
|
};
|
|
} catch (error) {
|
|
console.error('Error sending email:', error);
|
|
|
|
return {
|
|
success: false,
|
|
error: error instanceof Error ? error.message : 'Unknown error'
|
|
};
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Get list of mailboxes (folders)
|
|
*/
|
|
export async function getMailboxes(client: ImapFlow): Promise<string[]> {
|
|
try {
|
|
const list = await client.list();
|
|
return list.map(mailbox => mailbox.path);
|
|
} catch (error) {
|
|
console.error('Error listing mailboxes:', error);
|
|
return [];
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Test email connections with given credentials
|
|
*/
|
|
export async function testEmailConnection(credentials: EmailCredentials): Promise<{
|
|
imap: boolean;
|
|
smtp: boolean;
|
|
error?: string;
|
|
}> {
|
|
// Test IMAP connection
|
|
let imapSuccess = false;
|
|
let smtpSuccess = false;
|
|
let errorMessage = '';
|
|
|
|
// First test IMAP
|
|
const imapClient = new ImapFlow({
|
|
host: credentials.host,
|
|
port: credentials.port,
|
|
secure: true,
|
|
auth: {
|
|
user: credentials.email,
|
|
pass: credentials.password,
|
|
},
|
|
logger: false,
|
|
tls: {
|
|
rejectUnauthorized: false
|
|
}
|
|
});
|
|
|
|
try {
|
|
await imapClient.connect();
|
|
await imapClient.mailboxOpen('INBOX');
|
|
imapSuccess = true;
|
|
} catch (error) {
|
|
console.error('IMAP connection test failed:', error);
|
|
errorMessage = error instanceof Error ? error.message : 'Unknown IMAP error';
|
|
return { imap: false, smtp: false, error: `IMAP connection failed: ${errorMessage}` };
|
|
} finally {
|
|
try {
|
|
await imapClient.logout();
|
|
} catch (e) {
|
|
// Ignore logout errors
|
|
}
|
|
}
|
|
|
|
// If IMAP successful and SMTP details provided, test SMTP
|
|
if (credentials.smtp_host && credentials.smtp_port) {
|
|
const transporter = nodemailer.createTransport({
|
|
host: credentials.smtp_host,
|
|
port: credentials.smtp_port,
|
|
secure: true,
|
|
auth: {
|
|
user: credentials.email,
|
|
pass: credentials.password,
|
|
},
|
|
tls: {
|
|
rejectUnauthorized: false
|
|
}
|
|
});
|
|
|
|
try {
|
|
await transporter.verify();
|
|
smtpSuccess = true;
|
|
} catch (error) {
|
|
console.error('SMTP connection test failed:', error);
|
|
errorMessage = error instanceof Error ? error.message : 'Unknown SMTP error';
|
|
return {
|
|
imap: imapSuccess,
|
|
smtp: false,
|
|
error: `SMTP connection failed: ${errorMessage}`
|
|
};
|
|
}
|
|
} else {
|
|
// If no SMTP details, just mark as successful
|
|
smtpSuccess = true;
|
|
}
|
|
|
|
return { imap: imapSuccess, smtp: smtpSuccess };
|
|
}
|
|
|
|
// Original simplified function for backward compatibility
|
|
export async function testImapConnection(credentials: EmailCredentials): Promise<boolean> {
|
|
const result = await testEmailConnection(credentials);
|
|
return result.imap;
|
|
}
|
|
|
|
// Email formatting functions have been moved to lib/utils/email-formatter.ts
|
|
// Use those functions instead of the ones previously defined here
|