implement passReqToCallback

Author: sambrenner

lib/passport-http-oauth/strategies/consumer.js

@@ -125,6 +125,7 @@ function ConsumerStrategy(options, consumer, token, validate) {
   this._host = options.host || null;
   this._realm = options.realm || 'Clients';
   this._ignoreVersion = options.ignoreVersion || false;
+  this._passReqToCallback = options.passReqToCallback || false;
 }
 
 /**
@@ -320,11 +321,17 @@ ConsumerStrategy.prototype.authenticate = function(req) {
       if (self._validate) {
         // Give the application a chance it validate the timestamp and nonce, if
         // it so desires.
-        self._validate(timestamp, nonce, function(err, valid) {
+        var next = function(err, valid) {
           if (err) { return self.error(err); }
           if (!valid) { return self.fail(self._challenge('nonce_used')); }
           return ok();
-        });
+        };
+
+        if (self._passReqToCallback) {
+          self._validate(req, timestamp, nonce, next);
+        } else {
+          self._validate(timestamp, nonce, next);
+        }
       } else {
         return ok();
       }