fix the bug that Object.assign could modify the object insensibility

Author: bachue

app/components/services/domains.js

@@ -38,17 +38,17 @@ angular.module("web").factory("Domains", [
 
       signatureUrl(key, expires, opt) {
         expires = expires || this.maxLifetime();
-        const newOpt = Object.assign(opt || {}, { preferS3Adapter: true });
+        const newOpt = Object.assign({}, opt, { preferS3Adapter: true });
         return QiniuClient.signatureUrl(this.region, this.bucket, key, undefined, expires, newOpt);
       }
 
       getContent(key, opt) {
-        const newOpt = Object.assign(opt || {}, { preferS3Adapter: true });
+        const newOpt = Object.assign({}, opt, { preferS3Adapter: true });
         return QiniuClient.getContent(this.region, this.bucket, key, this.toQiniuDomain(), newOpt);
       }
 
       saveContent(key, content, opt) {
-        const newOpt = Object.assign(opt || {}, { preferS3Adapter: true });
+        const newOpt = Object.assign({}, opt, { preferS3Adapter: true });
         return QiniuClient.saveContent(this.region, this.bucket, key, content, this.toQiniuDomain(), newOpt);
       }
 
@@ -86,17 +86,17 @@ angular.module("web").factory("Domains", [
 
       signatureUrl(key, expires, opt) {
         expires = expires || this.maxLifetime();
-        const newOpt = Object.assign(opt || {}, { preferKodoAdapter: true });
+        const newOpt = Object.assign({}, opt, { preferKodoAdapter: true });
         return QiniuClient.signatureUrl(this.region, this.bucket, key, this.domain, expires, newOpt);
       }
 
       getContent(key, opt) {
-        const newOpt = Object.assign(opt || {}, { preferKodoAdapter: true });
+        const newOpt = Object.assign({}, opt, { preferKodoAdapter: true });
         return QiniuClient.getContent(this.region, this.bucket, key, this.toQiniuDomain(), newOpt);
       }
 
       saveContent(key, content, opt) {
-        const newOpt = Object.assign(opt || {}, { preferKodoAdapter: true });
+        const newOpt = Object.assign({}, opt, { preferKodoAdapter: true });
         return QiniuClient.saveContent(this.region, this.bucket, key, content, this.toQiniuDomain(), newOpt);
       }
 

node/qiniu-store/lib/download-job.js

@@ -87,7 +87,7 @@ DownloadJob.prototype.start = function (params) {
   let job = {
     job: this.id,
     key: 'job-download',
-    clientOptions: Object.assign(this.clientOptions, { backendMode: this.backendMode }),
+    clientOptions: Object.assign({}, this.clientOptions, { backendMode: this.backendMode }),
     options: {
       resumeDownload: this.resumeDownload,
       maxConcurrency: this.maxConcurrency,

node/qiniu-store/lib/upload-job.js

@@ -93,7 +93,7 @@ UploadJob.prototype.start = function (overwrite, prog) {
   let job = {
     job: this.id,
     key: 'job-upload',
-    clientOptions: Object.assign(this.clientOptions, { backendMode: this.backendMode, isDebug: this.isDebug }),
+    clientOptions: Object.assign({}, this.clientOptions, { backendMode: this.backendMode, isDebug: this.isDebug }),
     options: {
       resumeUpload: this.resumeUpload,
       maxConcurrency: this.maxConcurrency,