add retry for http/ws requestor (#1210)

* add retry for http requestor

* fix failing testcase

* wip

* update ws-requestor

* wip

* wip

* wip

lib/utils/base-requestor.js

@@ -79,7 +79,44 @@ class BaseRequestor extends Emitter {
     return time.toFixed(0);
   }
 
+  _parseHashParams(hash) {
+    // Remove the leading # if present
+    const hashString = hash.startsWith('#') ? hash.substring(1) : hash;
+    // Use URLSearchParams for parsing
+    const params = new URLSearchParams(hashString);
+    // Convert to a regular object
+    const result = {};
+    for (const [key, value] of params.entries()) {
+      result[key] = value;
+    }
+    return result;
+  }
 
+  /**
+   * Check if the error should be retried based on retry policy
+   * @param {Error} err - The error that occurred
+   * @param {string[]} rpValues - Array of retry policy values
+   * @returns {boolean} True if the error should be retried
+   */
+  _shouldRetry(err, rpValues) {
+    // ct = connection timeout (ECONNREFUSED, ETIMEDOUT, etc)
+    const isCt = err.code === 'ECONNREFUSED' ||
+                 err.code === 'ETIMEDOUT' ||
+                 err.code === 'ECONNRESET' ||
+                 err.code === 'ECONNABORTED';
+    // rt = request timeout
+    const isRt = err.name === 'TimeoutError';
+    // 4xx = client errors
+    const is4xx = err.statusCode >= 400 && err.statusCode < 500;
+    // 5xx = server errors
+    const is5xx = err.statusCode >= 500 && err.statusCode < 600;
+    // Check if error type is included in retry policy
+    return rpValues.includes('all') ||
+           (isCt && rpValues.includes('ct')) ||
+           (isRt && rpValues.includes('rt')) ||
+           (is4xx && rpValues.includes('4xx')) ||
+           (is5xx && rpValues.includes('5xx'));
+  }
 }
 
 module.exports = BaseRequestor;