From 176c7b22aaa80250850760f1641fa91ac388cbf8 Mon Sep 17 00:00:00 2001
From: Roman Puchkovskiy <roman.puchkovskiy@gmail.com>
Date: Wed, 3 Apr 2019 10:12:16 +0400
Subject: [PATCH 1/2] Add support for async signature computation

---
 oauth-1.0a.js | 52 +++++++++++++++++++++++++++++++++++++++++++++------
 1 file changed, 46 insertions(+), 6 deletions(-)

diff --git a/oauth-1.0a.js b/oauth-1.0a.js
index 5c15dd4..de5e782 100644
--- a/oauth-1.0a.js
+++ b/oauth-1.0a.js
@@ -60,6 +60,52 @@ function OAuth(opts) {
  * @return {Object} OAuth Authorized data
  */
 OAuth.prototype.authorize = function(request, token) {
+    var oauth_data = this._prepareSyncAuthorizationPart(request, token);
+
+    if(request.includeBodyHash) {
+      oauth_data.oauth_body_hash = this.getBodyHash(request, token.secret)
+    }
+
+    oauth_data.oauth_signature = this.getSignature(request, token.secret, oauth_data);
+
+    return oauth_data;
+};
+
+/**
+ * Promise for OAuth request authorize. It is required that
+ * oauth_body_hash and oauth_signature functions return
+ * promises.
+ * @param  {Object} request data
+ * {
+ *     method,
+ *     url,
+ *     data
+ * }
+ * @param  {Object} key and secret token
+ * @return {Object} Promise to produce OAuth Authorized data
+ */
+OAuth.prototype.promiseAuthorization = function(request, token) {
+    var self = this;
+    var oauth_data = this._prepareSyncAuthorizationPart(request, token);
+
+    var promise = Promise.resolve();
+    if(request.includeBodyHash) {
+      promise = promise.then(function() {
+          return self.getBodyHash(request, token.secret);
+      }).then(function(body_hash) {
+          oauth_data.oauth_body_hash = body_hash;
+      })
+    }
+
+    return promise.then(function() {
+        return self.getSignature(request, token.secret, oauth_data);
+    }).then(function(signature) {
+        oauth_data.oauth_signature = signature;
+        return oauth_data;
+    })
+};
+
+OAuth.prototype._prepareSyncAuthorizationPart = function(request, token) {
     var oauth_data = {
         oauth_consumer_key: this.consumer.key,
         oauth_nonce: this.getNonce(),
@@ -80,12 +126,6 @@ OAuth.prototype.authorize = function(request, token) {
         request.data = {};
     }
 
-    if(request.includeBodyHash) {
-      oauth_data.oauth_body_hash = this.getBodyHash(request, token.secret)
-    }
-
-    oauth_data.oauth_signature = this.getSignature(request, token.secret, oauth_data);
-
     return oauth_data;
 };
 

From 1c0735d924e9abb4c53084f26b870c6af3859f17 Mon Sep 17 00:00:00 2001
From: Roman Puchkovskiy <roman.puchkovskiy@gmail.com>
Date: Sat, 8 Jun 2019 16:44:15 +0400
Subject: [PATCH 2/2] Initialize token with {} if it is not provided

---
 oauth-1.0a.js | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/oauth-1.0a.js b/oauth-1.0a.js
index de5e782..5dcc448 100644
--- a/oauth-1.0a.js
+++ b/oauth-1.0a.js
@@ -60,6 +60,10 @@ function OAuth(opts) {
  * @return {Object} OAuth Authorized data
  */
 OAuth.prototype.authorize = function(request, token) {
+    if(!token) {
+        token = {};
+    }
+
     var oauth_data = this._prepareSyncAuthorizationPart(request, token);
 
     if(request.includeBodyHash) {
@@ -85,6 +89,10 @@ OAuth.prototype.authorize = function(request, token) {
  * @return {Object} Promise to produce OAuth Authorized data
  */
 OAuth.prototype.promiseAuthorization = function(request, token) {
+    if(!token) {
+        token = {};
+    }
+
     var self = this;
     var oauth_data = this._prepareSyncAuthorizationPart(request, token);
 
@@ -114,10 +122,6 @@ OAuth.prototype._prepareSyncAuthorizationPart = function(request, token) {
         oauth_version: this.version
     };
 
-    if(!token) {
-        token = {};
-    }
-
     if(token.key !== undefined) {
         oauth_data.oauth_token = token.key;
     }