fix

Author: garenwang

QCloudCore/Classes/Base/QCLOUDRestNet/CoreRequest/QCloudRequestData.m

@@ -9,6 +9,7 @@
 #import "QCloudRequestData.h"
 #import "NSError+QCloudNetworking.h"
 #import "QCloudHTTPBodyPart.h"
+#import "QCloudHTTPRequest.h"
 #if TARGET_OS_IOS
 #import <UIKit/UIKit.h>
 #endif
@@ -380,7 +381,10 @@ - (NSString *)description {
 - (void)setServerURL:(NSString *)serverURL{
     if (self.endpoint) {
         _serverURL = [self.endpoint serverURLWithBucket:self.bucket appID:self.appId regionName:self.region].absoluteString;
-    }else if(self.needChangeHost){
+        if (self.needChangeHost && [QCloudHTTPRequest needChangeHost:_serverURL]) {
+            _serverURL = [_serverURL stringByReplacingOccurrencesOfString:@"myqcloud.com" withString:emergencyHost];
+        }
+    }else if(self.needChangeHost && [QCloudHTTPRequest needChangeHost:serverURL]){
         _serverURL = [serverURL stringByReplacingOccurrencesOfString:@"myqcloud.com" withString:emergencyHost];
     }else{
         _serverURL = serverURL;

QCloudCore/Classes/Base/QCLOUDRestNet/Error/NSError+QCloudNetworking.m

@@ -45,7 +45,6 @@ + (BOOL)isNetworkErrorAndRecoverable:(NSError *)error {
             case NSURLErrorClientCertificateRejected:
             case NSURLErrorClientCertificateRequired:
             case NSURLErrorCannotLoadFromNetwork:
-                return NO;
             case NSURLErrorCannotConnectToHost:
             default:
                 return YES;

QCloudCore/Classes/Base/QCLOUDRestNet/SessionSupport/QCloudHTTPSessionManager.m

@@ -387,12 +387,7 @@ - (void)URLSession:(NSURLSession *)session task:(NSURLSessionTask *)task didComp
                         if (QCloudFileExist(httpRequset.downloadingTempURL.path)) {
                             httpRequset.localCacheDownloadOffset = QCloudFileSize(httpRequset.downloadingTempURL.path);
                         }
-                        if (taskData.response.statusCode / 100 == 5) {
-                            httpRequset.requestData.needChangeHost = [httpRequset needChangeHost] && !httpRequset.runOnService.configuration.disableChangeHost && ![taskData.response.allHeaderFields.allKeys containsObject:@"x-cos-request-id"];
-                        }else{
-                            httpRequset.requestData.needChangeHost = [httpRequset needChangeHost] && !httpRequset.runOnService.configuration.disableChangeHost;
-                        }
-                        
+                        httpRequset.requestData.needChangeHost = !httpRequset.runOnService.configuration.disableChangeHost;
                         [httpRequset setValue:@(YES) forKey:@"isRetry"];
                         httpRequset.retryCount = taskData.httpRequest.retryCount + 1;
                         [weakSelf executeRestHTTPReqeust:httpRequset];