From b0a243b865039e4e007942ee8ced76cfb12dbd94 Mon Sep 17 00:00:00 2001
From: ws <ws1350@hotmail.com>
Date: Fri, 17 Dec 2021 14:28:03 +0800
Subject: [PATCH] Fix the problem of CRC verification failure caused by network
 disconnection in resumableupload

---
 AliyunOSSSDK/OSSClient.m | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/AliyunOSSSDK/OSSClient.m b/AliyunOSSSDK/OSSClient.m
index f3872ca..e2b7676 100644
--- a/AliyunOSSSDK/OSSClient.m
+++ b/AliyunOSSSDK/OSSClient.m
@@ -1608,10 +1608,12 @@ - (OSSTask *)multipartUpload:(OSSMultipartUploadRequest *)request resumable:(BOO
 #pragma clang diagnostic pop
             
                 NSDictionary *tPartInfo = [localPartInfos objectForKey: [@(remotePartNumber) stringValue]];
-                info.crc64 = [tPartInfo[@"crc64"] unsignedLongLongValue];
-                
-                [uploadedPartInfos addObject:info];
-                [alreadyUploadIndex addObject:@(remotePartNumber)];
+                if (tPartInfo != nil) {
+                    info.crc64 = [tPartInfo[@"crc64"] unsignedLongLongValue];
+                    
+                    [uploadedPartInfos addObject:info];
+                    [alreadyUploadIndex addObject:@(remotePartNumber)];
+                }
             }];
             
             if ([alreadyUploadIndex count] > 0 && request.uploadProgress && uploadFileSize) {