start the path to rust

2026-02-10 15:54:09 +00:00
parent 237dba3bab
commit 8bd8c295b0
318 changed files with 28352 additions and 428 deletions
--- a/dist_ts/mail/delivery/smtpclient/error-handler.js
+++ b/dist_ts/mail/delivery/smtpclient/error-handler.js
@@ -0,0 +1,111 @@
+/**
+ * SMTP Client Error Handler
+ * Error classification and recovery strategies
+ */
+import { SmtpErrorType } from './constants.js';
+import { logDebug } from './utils/logging.js';
+export class SmtpErrorHandler {
+    options;
+    constructor(options) {
+        this.options = options;
+    }
+    /**
+     * Classify error type based on response or error
+     */
+    classifyError(error, context) {
+        logDebug('Classifying error', this.options, { errorMessage: error instanceof Error ? error.message : String(error), context });
+        // Handle Error objects
+        if (error instanceof Error) {
+            return this.classifyErrorByMessage(error);
+        }
+        // Handle SMTP response codes
+        if (typeof error === 'object' && 'code' in error) {
+            return this.classifyErrorByCode(error.code);
+        }
+        return SmtpErrorType.UNKNOWN_ERROR;
+    }
+    /**
+     * Determine if error is retryable
+     */
+    isRetryable(errorType, response) {
+        switch (errorType) {
+            case SmtpErrorType.CONNECTION_ERROR:
+            case SmtpErrorType.TIMEOUT_ERROR:
+                return true;
+            case SmtpErrorType.PROTOCOL_ERROR:
+                // Only retry on temporary failures (4xx codes)
+                return response ? response.code >= 400 && response.code < 500 : false;
+            case SmtpErrorType.AUTHENTICATION_ERROR:
+            case SmtpErrorType.TLS_ERROR:
+            case SmtpErrorType.SYNTAX_ERROR:
+            case SmtpErrorType.MAILBOX_ERROR:
+            case SmtpErrorType.QUOTA_ERROR:
+                return false;
+            default:
+                return false;
+        }
+    }
+    /**
+     * Get retry delay for error type
+     */
+    getRetryDelay(attempt, errorType) {
+        const baseDelay = 1000; // 1 second
+        const maxDelay = 30000; // 30 seconds
+        // Exponential backoff with jitter
+        const delay = Math.min(baseDelay * Math.pow(2, attempt - 1), maxDelay);
+        const jitter = Math.random() * 0.1 * delay; // 10% jitter
+        return Math.floor(delay + jitter);
+    }
+    /**
+     * Create enhanced error with context
+     */
+    createError(message, errorType, context, originalError) {
+        const error = new Error(message);
+        error.type = errorType;
+        error.context = context;
+        error.originalError = originalError;
+        return error;
+    }
+    classifyErrorByMessage(error) {
+        const message = error.message.toLowerCase();
+        if (message.includes('timeout') || message.includes('etimedout')) {
+            return SmtpErrorType.TIMEOUT_ERROR;
+        }
+        if (message.includes('connect') || message.includes('econnrefused') ||
+            message.includes('enotfound') || message.includes('enetunreach')) {
+            return SmtpErrorType.CONNECTION_ERROR;
+        }
+        if (message.includes('tls') || message.includes('ssl') ||
+            message.includes('certificate') || message.includes('handshake')) {
+            return SmtpErrorType.TLS_ERROR;
+        }
+        if (message.includes('auth')) {
+            return SmtpErrorType.AUTHENTICATION_ERROR;
+        }
+        return SmtpErrorType.UNKNOWN_ERROR;
+    }
+    classifyErrorByCode(code) {
+        if (code >= 500) {
+            // Permanent failures
+            if (code === 550 || code === 551 || code === 553) {
+                return SmtpErrorType.MAILBOX_ERROR;
+            }
+            if (code === 552) {
+                return SmtpErrorType.QUOTA_ERROR;
+            }
+            if (code === 500 || code === 501 || code === 502 || code === 504) {
+                return SmtpErrorType.SYNTAX_ERROR;
+            }
+            return SmtpErrorType.PROTOCOL_ERROR;
+        }
+        if (code >= 400) {
+            // Temporary failures
+            if (code === 450 || code === 451 || code === 452) {
+                return SmtpErrorType.QUOTA_ERROR;
+            }
+            return SmtpErrorType.PROTOCOL_ERROR;
+        }
+        return SmtpErrorType.UNKNOWN_ERROR;
+    }
+}
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