return promise if callback not passed to async methods

lib/cookie.js

@@ -38,6 +38,7 @@ const Store = require("./store").Store;
 const MemoryCookieStore = require("./memstore").MemoryCookieStore;
 const pathMatch = require("./pathMatch").pathMatch;
 const VERSION = require("./version");
+const { fromCallback } = require("universalify");
 
 // From RFC6265 S4.1.1
 // note that it excludes \x3B ";"
@@ -1605,6 +1606,20 @@ class CookieJar {
 }
 CookieJar.fromJSON = CookieJar.deserializeSync;
 
+[
+  "_importCookies",
+  "clone",
+  "getCookies",
+  "getCookieString",
+  "getSetCookieStrings",
+  "removeAllCookies",
+  "serialize",
+  "setCookie"
+].forEach(name => {
+  CookieJar.prototype[name] = fromCallback(CookieJar.prototype[name]);
+});
+CookieJar.deserialize = fromCallback(CookieJar.deserialize);
+
 // Use a closure to provide a true imperative API for synchronous stores.
 function syncWrap(method) {
   return function(...args) {

lib/memstore.js

@@ -29,6 +29,7 @@
  * POSSIBILITY OF SUCH DAMAGE.
  */
 "use strict";
+const { fromCallback } = require("universalify");
 const Store = require("./store").Store;
 const permuteDomain = require("./permuteDomain").permuteDomain;
 const pathMatch = require("./pathMatch").pathMatch;
@@ -85,7 +86,6 @@ class MemoryCookieStore extends Store {
         Object.keys(domainIndex).forEach(cookiePath => {
           if (pathMatch(path, cookiePath)) {
             const pathIndex = domainIndex[cookiePath];
-
             for (const key in pathIndex) {
               results.push(pathIndex[key]);
             }
@@ -174,4 +174,17 @@ class MemoryCookieStore extends Store {
   }
 }
 
+[
+  "findCookie",
+  "findCookies",
+  "putCookie",
+  "updateCookie",
+  "removeCookie",
+  "removeCookies",
+  "removeAllCookies",
+  "getAllCookies"
+].forEach(name => {
+  MemoryCookieStore[name] = fromCallback(MemoryCookieStore.prototype[name]);
+});
+
 exports.MemoryCookieStore = MemoryCookieStore;

package.json

@@ -80,6 +80,7 @@
   "dependencies": {
     "ip-regex": "^2.1.0",
     "psl": "^1.1.33",
-    "punycode": "^2.1.1"
+    "punycode": "^2.1.1",
+    "universalify": "^0.1.2"
   }
 }

test/api_test.js

@@ -29,15 +29,12 @@
  * POSSIBILITY OF SUCH DAMAGE.
  */
 "use strict";
-const util = require("util");
 const vows = require("vows");
 const assert = require("assert");
 const async = require("async");
 const tough = require("../lib/cookie");
 const Cookie = tough.Cookie;
 const CookieJar = tough.CookieJar;
-const Store = tough.Store;
-const MemoryCookieStore = tough.MemoryCookieStore;
 
 const atNow = Date.now();
 
@@ -84,6 +81,79 @@ vows
       }
     }
   })
+  .addBatch({
+    "CookieJar Promises": {
+      topic: () => new CookieJar(),
+      setCookie: {
+        topic(jar) {
+          jar
+            .setCookie("foo=bar", "http://example.com")
+            .then(c => this.callback(null, c), this.callback);
+        },
+        "resolves to a Cookie"(cookie) {
+          assert.ok(cookie instanceof Cookie);
+          assert.strictEqual(cookie.key, "foo");
+          assert.strictEqual(cookie.value, "bar");
+        }
+      },
+      getCookies: {
+        topic(jar) {
+          jar
+            .getCookies("http://example.com")
+            .then(cookies => this.callback(null, cookies), this.callback);
+        },
+        "resolves to an array of cookies"(cookies) {
+          assert.ok(Array.isArray(cookies), "not an array");
+          assert.ok(cookies.length > 0, "array is empty");
+          for (const cookie of cookies) {
+            assert.ok(cookie instanceof Cookie, "not instanceof Cookie");
+          }
+        }
+      },
+      getCookieString: {
+        topic(jar) {
+          jar
+            .getCookieString("http://example.com")
+            .then(cookies => this.callback(null, cookies), this.callback);
+        },
+        "resolves to a string"(cookies) {
+          assert.ok(typeof cookies === "string", "not a string");
+        }
+      },
+      getSetCookieStrings: {
+        topic(jar) {
+          jar
+            .getSetCookieStrings("http://example.com")
+            .then(cookies => this.callback(null, cookies), this.callback);
+        },
+        "resolves to a an array of strings"(cookies) {
+          assert.ok(Array.isArray(cookies), "not an array");
+          assert.ok(cookies.length > 0, "array is empty");
+          for (const cookie of cookies) {
+            assert.ok(typeof cookie === "string", "not a string");
+          }
+        }
+      },
+      removeAllCookies: {
+        topic(jar) {
+          jar.removeAllCookies().then(this.callback, this.callback);
+        },
+        "resolves to undefined"(arg) {
+          assert.ok(arg === undefined, "was not undefined");
+        }
+      },
+      serialize: {
+        topic(jar) {
+          jar
+            .serialize()
+            .then(data => this.callback(null, data), this.callback);
+        },
+        "resolves to an object"(data) {
+          assert.ok(data instanceof Object, "not an object");
+        }
+      }
+    }
+  })
   .addBatch({
     "expiry option": {
       topic: function() {