Make authentication optional (#5)

* optionnal auth

* optional authentication

Author: jBouyoud

lib/download.js

@@ -39,18 +39,20 @@ function download(requestUrl, downloadPath, config) {
         randomize: true
     }, config.retry || {});
 
-	var auth = "Basic " + utils.getAuthToken(config);
+	var auth = utils.getAuthToken(config);
 
     var _request = request.defaults({
         proxy: parsedUrl.protocol === 'https:' ? config.httpsProxy : config.proxy,
         strictSSL: config.strictSsl,
-        timeout: config.timeout,
-		headers : {
-            "Authorization" : auth
-        }
+        timeout: config.timeout
     });
+    if(auth !== null){
+        _request = _request.defaults({headers : {
+            "Authorization" : auth
+        }});
+    }
 
-    _request = _request.defaults(config.request || {})
+    _request = _request.defaults(config.request || {});
 
     // Retry on network errors
     operation = retry.operation(retryOptions);

lib/extract.js

@@ -111,7 +111,6 @@ function getExtractor(archive) {
     var type = mout.array.find(extractorTypes, function (type) {
         return mout.string.endsWith(archive, type);
     });
-console.log(type);
     return type ? extractors[type] : null;
 }
 

lib/request.js

@@ -10,24 +10,25 @@ function requestWrapper(requestUrl, config) {
 
     var protocol = url.parse(requestUrl).protocol;
 
-	var auth = "Basic " + utils.getAuthToken(config);
+	var auth = utils.getAuthToken(config);
 
     var _request = request.defaults({
         proxy: protocol === 'https:' ? config.httpsProxy : config.proxy,
         strictSSL: false,
-        timeout: config.timeout,
-		headers : {
+        timeout: config.timeout
+    });
+    if(auth !== null){
+        _request = _request.defaults({headers : {
             "Authorization" : auth
-        }
-    })
+        }});
+    }
 
     _request = _request.defaults(config.request || {})
 
     _request(requestUrl, function (error, response, body) {
         if (error) {
             deferred.reject(createError('Request to ' + requestUrl + ' failed: ' + error.message, error.code));
         } else {
-		console.log('laencore');
             if (response.statusCode === 200) {
                 deferred.resolve(body);
             } else {

lib/utils.js

@@ -38,13 +38,9 @@ function extractReleases(response) {
 
 function getAuthToken(config) {	
 	if (!config.auth) {
-		throw createError('Authentication token not configured', 'ENOAUTHTOKEN', {
-			details: 'You need to set the authentication token with `auth` field in .bowerrc'
-		});
-	} else {
-		return config.auth;
+		return null;
 	}
-	return 
+	return "Basic " + config.auth;
 }
 
 function getRegistryUrl(config) {