Firebase Update

express-server/node_modules/node-fetch/lib/headers.js

@@ -0,0 +1,141 @@
+
+/**
+ * headers.js
+ *
+ * Headers class offers convenient helpers
+ */
+
+module.exports = Headers;
+
+/**
+ * Headers class
+ *
+ * @param   Object  headers  Response headers
+ * @return  Void
+ */
+function Headers(headers) {
+
+	var self = this;
+	this._headers = {};
+
+	// Headers
+	if (headers instanceof Headers) {
+		headers = headers.raw();
+	}
+
+	// plain object
+	for (var prop in headers) {
+		if (!headers.hasOwnProperty(prop)) {
+			continue;
+		}
+
+		if (typeof headers[prop] === 'string') {
+			this.set(prop, headers[prop]);
+
+		} else if (typeof headers[prop] === 'number' && !isNaN(headers[prop])) {
+			this.set(prop, headers[prop].toString());
+
+		} else if (Array.isArray(headers[prop])) {
+			headers[prop].forEach(function(item) {
+				self.append(prop, item.toString());
+			});
+		}
+	}
+
+}
+
+/**
+ * Return first header value given name
+ *
+ * @param   String  name  Header name
+ * @return  Mixed
+ */
+Headers.prototype.get = function(name) {
+	var list = this._headers[name.toLowerCase()];
+	return list ? list[0] : null;
+};
+
+/**
+ * Return all header values given name
+ *
+ * @param   String  name  Header name
+ * @return  Array
+ */
+Headers.prototype.getAll = function(name) {
+	if (!this.has(name)) {
+		return [];
+	}
+
+	return this._headers[name.toLowerCase()];
+};
+
+/**
+ * Iterate over all headers
+ *
+ * @param   Function  callback  Executed for each item with parameters (value, name, thisArg)
+ * @param   Boolean   thisArg   `this` context for callback function
+ * @return  Void
+ */
+Headers.prototype.forEach = function(callback, thisArg) {
+	Object.getOwnPropertyNames(this._headers).forEach(function(name) {
+		this._headers[name].forEach(function(value) {
+			callback.call(thisArg, value, name, this)
+		}, this)
+	}, this)
+}
+
+/**
+ * Overwrite header values given name
+ *
+ * @param   String  name   Header name
+ * @param   String  value  Header value
+ * @return  Void
+ */
+Headers.prototype.set = function(name, value) {
+	this._headers[name.toLowerCase()] = [value];
+};
+
+/**
+ * Append a value onto existing header
+ *
+ * @param   String  name   Header name
+ * @param   String  value  Header value
+ * @return  Void
+ */
+Headers.prototype.append = function(name, value) {
+	if (!this.has(name)) {
+		this.set(name, value);
+		return;
+	}
+
+	this._headers[name.toLowerCase()].push(value);
+};
+
+/**
+ * Check for header name existence
+ *
+ * @param   String   name  Header name
+ * @return  Boolean
+ */
+Headers.prototype.has = function(name) {
+	return this._headers.hasOwnProperty(name.toLowerCase());
+};
+
+/**
+ * Delete all header values given name
+ *
+ * @param   String  name  Header name
+ * @return  Void
+ */
+Headers.prototype['delete'] = function(name) {
+	delete this._headers[name.toLowerCase()];
+};
+
+/**
+ * Return raw headers (non-spec api)
+ *
+ * @return  Object
+ */
+Headers.prototype.raw = function() {
+	return this._headers;
+};