[Bug]: GCS in S3 compatibility as external storage (not primary) cannot delete 400 NotImplemented

[antoinetran]

⚠️ This issue respects the following points: ⚠️

• This is a bug, not a question or a configuration/webserver/proxy issue.
• This issue is not already reported on Github OR Nextcloud Community Forum (I've searched it).
• Nextcloud Server is up to date. See Maintenance and Release Schedule for supported versions.
• I agree to follow Nextcloud's Code of Conduct.

Bug description

When Nextcloud is configured with an external storage as Amazon S3 endpoint, with host set to GCS as S3 compatibility mode, then it is not possible to use Nextcloud GUI to delete a folder, whether it is empty or not. But it is possible to delete files.

Steps to reproduce

1. Configure Google GCS side as S3 compatibility mode
2. Create a bucket with Fine-grained ACL
3. Configure in Nextcloud an external storage for GCS as Amazon S3 endpoint
4. Create a folder in this mount using Nextcloud, and upload a small file
5. Delete the folder, it results in the error in GUI "Delete permanently" failed on some elements
6. Looking at server logs (see nextcloud server logs for full json log below):```
   AWS HTTP error: Client error: POST https://storage.googleapis.com/REDACTED?delete resulted in a `400 Bad Request` response:\nNotImplementedA header or query you provided requeste (truncated...)\n NotImplemented (client): A header or query you provided requested a function that is not implemented.

### Expected behavior

It should be possible to remove a folder.

### Nextcloud Server version

30

### Operating system

Other

### PHP engine version

PHP 8.2

### Web server

Nginx

### Database engine version

MariaDB

### Is this bug present after an update or on a fresh install?

Fresh Nextcloud Server install

### Are you using the Nextcloud Server Encryption module?

Encryption is Disabled

### What user-backends are you using?

- [x] Default user-backend _(database)_
- [x] LDAP/ Active Directory
- [ ] SSO - SAML
- [ ] Other

### Configuration report

```json
{
    "system": {
        "htaccess.RewriteBase": "\/",
        "memcache.local": "\\OC\\Memcache\\APCu",
        "apps_paths": [
            {
                "path": "\/var\/www\/html\/apps",
                "url": "\/apps",
                "writable": false
            },
            {
                "path": "\/var\/www\/html\/custom_apps",
                "url": "\/custom_apps",
                "writable": true
            }
        ],
        "debug": true,
        "check_data_directory_permissions": false,
        "trusted_proxies": "***REMOVED SENSITIVE VALUE***",
        "forwarded_for_headers": [
            "HTTP_X_FORWARDED_FOR"
        ],
        "skeletondirectory": "\/dev\/null",
        "memcache.distributed": "\\OC\\Memcache\\Redis",
        "memcache.locking": "\\OC\\Memcache\\Redis",
        "redis": {
            "host": "***REMOVED SENSITIVE VALUE***",
            "password": "***REMOVED SENSITIVE VALUE***",
            "port": 6379
        },
        "upgrade.disable-web": true,
        "passwordsalt": "***REMOVED SENSITIVE VALUE***",
        "secret": "***REMOVED SENSITIVE VALUE***",
        "trusted_domains": "***REMOVED SENSITIVE VALUE***"
        "datadirectory": "***REMOVED SENSITIVE VALUE***",
        "dbtype": "mysql",
        "version": "30.0.6.2",
        "overwrite.cli.url": "http:\/\/localhost",
        "dbname": "***REMOVED SENSITIVE VALUE***",
        "dbhost": "***REMOVED SENSITIVE VALUE***",
        "dbport": "",
        "dbtableprefix": "oc_",
        "mysql.utf8mb4": true,
        "dbuser": "***REMOVED SENSITIVE VALUE***",
        "dbpassword": "***REMOVED SENSITIVE VALUE***",
        "installed": true,
        "instanceid": "***REMOVED SENSITIVE VALUE***",
        "ldapProviderFactory": "OCA\\User_LDAP\\LDAPProviderFactory",
        "filelocking.enabled": false
    }
}

List of activated Apps

Enabled:
  - activity: 3.0.0
  - bruteforcesettings: 3.0.0
  - cloud_federation_api: 1.13.0
  - comments: 1.20.1
  - dav: 1.31.1
  - federatedfilesharing: 1.20.0
  - files: 2.2.0
  - files_downloadlimit: 3.0.0
  - files_external: 1.22.0
  - files_pdfviewer: 3.0.0
  - files_sharing: 1.22.0
  - logreader: 3.0.0
  - lookup_server_connector: 1.18.0
  - notifications: 3.0.0
  - oauth2: 1.18.1
  - password_policy: 2.0.0
  - provisioning_api: 1.20.0
  - serverinfo: 2.0.0
  - settings: 1.13.0
  - support: 2.0.0
  - survey_client: 2.0.0
  - systemtags: 1.20.0
  - text: 4.1.0
  - theming: 2.6.0
  - twofactor_backupcodes: 1.19.0
  - updatenotification: 1.20.0
  - user_ldap: 1.21.0
  - viewer: 3.0.0
  - workflowengine: 2.12.0
Enabled:
  - activity: 3.0.0
  - bruteforcesettings: 3.0.0
  - cloud_federation_api: 1.13.0
  - comments: 1.20.1
  - dav: 1.31.1
  - federatedfilesharing: 1.20.0
  - files: 2.2.0
  - files_downloadlimit: 3.0.0
  - files_external: 1.22.0
  - files_pdfviewer: 3.0.0
  - files_sharing: 1.22.0
  - logreader: 3.0.0
  - lookup_server_connector: 1.18.0
  - notifications: 3.0.0
  - oauth2: 1.18.1
  - password_policy: 2.0.0
  - provisioning_api: 1.20.0
  - serverinfo: 2.0.0
  - settings: 1.13.0
  - support: 2.0.0
  - survey_client: 2.0.0
  - systemtags: 1.20.0
  - text: 4.1.0
  - theming: 2.6.0
  - twofactor_backupcodes: 1.19.0
  - updatenotification: 1.20.0
  - user_ldap: 1.21.0
  - viewer: 3.0.0
  - workflowengine: 2.12.0Disabled:
  - admin_audit: 1.20.0
  - app_api: 4.0.6 (installed 4.0.6)
  - circles: 30.0.0 (installed 30.0.0)
  - contactsinteraction: 1.11.0 (installed 1.11.0)
  - dashboard: 7.10.0 (installed 7.10.0)
  - encryption: 2.18.0
  - federation: 1.20.0 (installed 1.20.0)
  - files_reminders: 1.3.0 (installed 1.3.0)
  - files_trashbin: 1.20.1 (installed 1.20.1)
  - files_versions: 1.23.0 (installed 1.23.0)
  - firstrunwizard: 3.0.0 (installed 3.0.0)
  - nextcloud_announcements: 2.0.0 (installed 2.0.0)
  - photos: 3.0.2 (installed 3.0.2)
  - privacy: 2.0.0 (installed 2.0.0)
  - recommendations: 3.0.0 (installed 3.0.0)
  - related_resources: 1.5.0 (installed 1.5.0)
  - sharebymail: 1.20.0 (installed 1.20.0)
  - suspicious_login: 8.0.0
  - twofactor_nextcloud_notification: 4.0.0
  - twofactor_totp: 12.0.0-dev
  - user_status: 1.10.0 (installed 1.10.0)
  - weather_status: 1.10.0 (installed 1.10.0)
  - webhook_listeners: 1.1.0-dev (installed 1.1.0-dev)

Nextcloud Signing status

No errors have been found.

Nextcloud Logs

{
   "reqId":"Nm9xSP0wsMjMoh014V7h",
   "level":3,
   "time":"2025-06-17T15:43:45+00:00",
   "remoteAddr":"24.206.123.184",
   "user":"admin",
   "app":"files_external",
   "method":"DELETE",
   "url":"/remote.php/dav/files/admin/REDACTED/testtodel-template-tsqmp",
   "message":"Error executing \"DeleteObjects\" on \"https://storage.googleapis.com/REDACTED?delete\"; AWS HTTP error: Client error: `POST https://storage.googleapis.com/REDACTED?delete` resulted in a `400 Bad Request` response:\n<?xml version='1.0' encoding='UTF-8'?><Error><Code>NotImplemented</Code><Message>A header or query you provided requeste (truncated...)\n NotImplemented (client): A header or query you provided requested a function that is not implemented. - <?xml version='1.0' encoding='UTF-8'?><Error><Code>NotImplemented</Code><Message>A header or query you provided requested a function that is not implemented.</Message><Details>POST ?delete is not implemented for objects.</Details></Error>",
   "userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:128.0) Gecko/20100101 Firefox/128.0",
   "version":"30.0.6.2",
   "exception":{
      "Exception":"Aws\\S3\\Exception\\S3Exception",
      "Message":"Error executing \"DeleteObjects\" on \"https://storage.googleapis.com/REDACTED?delete\"; AWS HTTP error: Client error: `POST https://storage.googleapis.com/REDACTED?delete` resulted in a `400 Bad Request` response:\n<?xml version='1.0' encoding='UTF-8'?><Error><Code>NotImplemented</Code><Message>A header or query you provided requeste (truncated...)\n NotImplemented (client): A header or query you provided requested a function that is not implemented. - <?xml version='1.0' encoding='UTF-8'?><Error><Code>NotImplemented</Code><Message>A header or query you provided requested a function that is not implemented.</Message><Details>POST ?delete is not implemented for objects.</Details></Error>",
      "Code":0,
      "Trace":[
         {
            "file":"/var/www/html/3rdparty/aws/aws-sdk-php/src/WrappedHttpHandler.php",
            "line":97,
            "function":"parseError",
            "class":"Aws\\WrappedHttpHandler",
            "type":"->",
            "args":[
               "*** sensitive parameters replaced ***",
               {
                  "__class__":"GuzzleHttp\\Psr7\\Request"
               },
               {
                  "__class__":"Aws\\Command"
               },
               [
                  
               ]
            ]
         },
         {
            "file":"/var/www/html/3rdparty/guzzlehttp/promises/src/Promise.php",
            "line":209,
            "function":"Aws\\{closure}",
            "class":"Aws\\WrappedHttpHandler",
            "type":"->",
            "args":[
               "*** sensitive parameters replaced ***"
            ]
         },
         {
            "file":"/var/www/html/3rdparty/guzzlehttp/promises/src/Promise.php",
            "line":174,
            "function":"callHandler",
            "class":"GuzzleHttp\\Promise\\Promise",
            "type":"::",
            "args":[
               2,
               "*** sensitive parameters replaced ***",
               null
            ]
         },
         {
            "file":"/var/www/html/3rdparty/guzzlehttp/promises/src/RejectedPromise.php",
            "line":49,
            "function":"GuzzleHttp\\Promise\\{closure}",
            "class":"GuzzleHttp\\Promise\\Promise",
            "type":"::",
            "args":[
               "*** sensitive parameters replaced ***"
            ]
         },
         {
            "file":"/var/www/html/3rdparty/guzzlehttp/promises/src/TaskQueue.php",
            "line":52,
            "function":"GuzzleHttp\\Promise\\{closure}",
            "class":"GuzzleHttp\\Promise\\RejectedPromise",
            "type":"::",
            "args":[
               "*** sensitive parameters replaced ***"
            ]
         },
         {
            "file":"/var/www/html/3rdparty/guzzlehttp/guzzle/src/Handler/CurlMultiHandler.php",
            "line":163,
            "function":"run",
            "class":"GuzzleHttp\\Promise\\TaskQueue",
            "type":"->",
            "args":[
               
            ]
         },
         {
            "file":"/var/www/html/3rdparty/guzzlehttp/guzzle/src/Handler/CurlMultiHandler.php",
            "line":189,
            "function":"tick",
            "class":"GuzzleHttp\\Handler\\CurlMultiHandler",
            "type":"->",
            "args":[
               
            ]
         },
         {
            "file":"/var/www/html/3rdparty/guzzlehttp/promises/src/Promise.php",
            "line":251,
            "function":"execute",
            "class":"GuzzleHttp\\Handler\\CurlMultiHandler",
            "type":"->",
            "args":[
               true
            ]
         },
         {
            "file":"/var/www/html/3rdparty/guzzlehttp/promises/src/Promise.php",
            "line":227,
            "function":"invokeWaitFn",
            "class":"GuzzleHttp\\Promise\\Promise",
            "type":"->",
            "args":[
               
            ]
         },
         {
            "file":"/var/www/html/3rdparty/guzzlehttp/promises/src/Promise.php",
            "line":272,
            "function":"waitIfPending",
            "class":"GuzzleHttp\\Promise\\Promise",
            "type":"->",
            "args":[
               
            ]
         },
         {
            "file":"/var/www/html/3rdparty/guzzlehttp/promises/src/Promise.php",
            "line":229,
            "function":"invokeWaitList",
            "class":"GuzzleHttp\\Promise\\Promise",
            "type":"->",
            "args":[
               
            ]
         },
         {
            "file":"/var/www/html/3rdparty/guzzlehttp/promises/src/Promise.php",
            "line":272,
            "function":"waitIfPending",
            "class":"GuzzleHttp\\Promise\\Promise",
            "type":"->",
            "args":[
               
            ]
         },
         {
            "file":"/var/www/html/3rdparty/guzzlehttp/promises/src/Promise.php",
            "line":229,
            "function":"invokeWaitList",
            "class":"GuzzleHttp\\Promise\\Promise",
            "type":"->",
            "args":[
               
            ]
         },
         {
            "file":"/var/www/html/3rdparty/guzzlehttp/promises/src/Promise.php",
            "line":69,
            "function":"waitIfPending",
            "class":"GuzzleHttp\\Promise\\Promise",
            "type":"->",
            "args":[
               
            ]
         },
         {
            "file":"/var/www/html/3rdparty/aws/aws-sdk-php/src/AwsClientTrait.php",
            "line":58,
            "function":"wait",
            "class":"GuzzleHttp\\Promise\\Promise",
            "type":"->",
            "args":[
               
            ]
         },
         {
            "file":"/var/www/html/3rdparty/aws/aws-sdk-php/src/AwsClientTrait.php",
            "line":86,
            "function":"execute",
            "class":"Aws\\AwsClient",
            "type":"->",
            "args":[
               {
                  "__class__":"Aws\\Command"
               }
            ]
         },
         {
            "file":"/var/www/html/apps/files_external/lib/Lib/Storage/AmazonS3.php",
            "line":281,
            "function":"__call",
            "class":"Aws\\AwsClient",
            "type":"->",
            "args":[
               "deleteObjects",
               [
                  {
                     "Bucket":"REDACTED",
                     "Delete":{
                        "Objects":[
                           {
                              "Key":"testtodel-template-tsqmp/AA/",
                              "LastModified":{
                                 "__class__":"Aws\\Api\\DateTimeResult",
                                 "__properties__":"Encoding skipped as the maximum nesting level was reached"
                              },
                              "ETag":"\"d41d8cd98f00b204e9800998ecf8427e\"",
                              "Size":"0"
                           },
                           {
                              "Key":"testtodel-template-tsqmp/mock/emri_config.json",
                              "LastModified":{
                                 "__class__":"Aws\\Api\\DateTimeResult",
                                 "__properties__":"Encoding skipped as the maximum nesting level was reached"
                              },
                              "ETag":"\"3c70f6c1a222738d6cde9fb5d77df14b\"",
                              "Size":"305"
                           },
                           {
                              "Key":"testtodel-template-tsqmp/mock/gb_config.json",
                              "LastModified":{
                                 "__class__":"Aws\\Api\\DateTimeResult",
                                 "__properties__":"Encoding skipped as the maximum nesting level was reached"
                              },
                              "ETag":"\"8220939d579c9d94d3a5387f61d4fd99\"",
                              "Size":"634"
                           },
                           {
                              "Key":"testtodel-template-tsqmp/mock/mbhb_config.json",
                              "LastModified":{
                                 "__class__":"Aws\\Api\\DateTimeResult",
                                 "__properties__":"Encoding skipped as the maximum nesting level was reached"
                              },
                              "ETag":"\"370791267c0c5aa1ffda8bf9187cc336\"",
                              "Size":"229"
                           }
                        ]
                     }
                  }
               ]
            ]
         },
         {
            "file":"/var/www/html/apps/files_external/lib/Lib/Storage/AmazonS3.php",
            "line":256,
            "function":"batchDelete",
            "class":"OCA\\Files_External\\Lib\\Storage\\AmazonS3",
            "type":"->",
            "args":[
               "testtodel-template-tsqmp"
            ]
         },
         {
            "file":"/var/www/html/lib/private/Files/Storage/Wrapper/Wrapper.php",
            "line":79,
            "function":"rmdir",
            "class":"OCA\\Files_External\\Lib\\Storage\\AmazonS3",
            "type":"->",
            "args":[
               "testtodel-template-tsqmp"
            ]
         },
         {
            "file":"/var/www/html/lib/private/Files/Storage/Wrapper/Availability.php",
            "line":92,
            "function":"rmdir",
            "class":"OC\\Files\\Storage\\Wrapper\\Wrapper",
            "type":"->",
            "args":[
               "testtodel-template-tsqmp"
            ]
         },
         {
            "file":"/var/www/html/lib/private/Files/View.php",
            "line":1203,
            "function":"rmdir",
            "class":"OC\\Files\\Storage\\Wrapper\\Availability",
            "type":"->",
            "args":[
               "testtodel-template-tsqmp"
            ]
         },
         {
            "file":"/var/www/html/lib/private/Files/View.php",
            "line":291,
            "function":"basicOperation",
            "class":"OC\\Files\\View",
            "type":"->",
            "args":[
               "rmdir",
               "/REDACTED/testtodel-template-tsqmp",
               [
                  "delete"
               ]
            ]
         },
         {
            "file":"/var/www/html/apps/dav/lib/Connector/Sabre/Directory.php",
            "line":271,
            "function":"rmdir",
            "class":"OC\\Files\\View",
            "type":"->",
            "args":[
               "/REDACTED/testtodel-template-tsqmp"
            ]
         },
         {
            "file":"/var/www/html/3rdparty/sabre/dav/lib/DAV/Tree.php",
            "line":197,
            "function":"delete",
            "class":"OCA\\DAV\\Connector\\Sabre\\Directory",
            "type":"->",
            "args":[
               
            ]
         },
         {
            "file":"/var/www/html/3rdparty/sabre/dav/lib/DAV/CorePlugin.php",
            "line":281,
            "function":"delete",
            "class":"Sabre\\DAV\\Tree",
            "type":"->",
            "args":[
               "files/admin/REDACTED/testtodel-template-tsqmp"
            ]
         },
         {
            "file":"/var/www/html/3rdparty/sabre/event/lib/WildcardEmitterTrait.php",
            "line":89,
            "function":"httpDelete",
            "class":"Sabre\\DAV\\CorePlugin",
            "type":"->",
            "args":[
               {
                  "__class__":"Sabre\\HTTP\\Request"
               },
               {
                  "__class__":"Sabre\\HTTP\\Response"
               }
            ]
         },
         {
            "file":"/var/www/html/3rdparty/sabre/dav/lib/DAV/Server.php",
            "line":472,
            "function":"emit",
            "class":"Sabre\\DAV\\Server",
            "type":"->",
            "args":[
               "method:DELETE",
               [
                  {
                     "__class__":"Sabre\\HTTP\\Request"
                  },
                  {
                     "__class__":"Sabre\\HTTP\\Response"
                  }
               ]
            ]
         },
         {
            "file":"/var/www/html/apps/dav/lib/Connector/Sabre/Server.php",
            "line":43,
            "function":"invokeMethod",
            "class":"Sabre\\DAV\\Server",
            "type":"->",
            "args":[
               {
                  "__class__":"Sabre\\HTTP\\Request"
               },
               {
                  "__class__":"Sabre\\HTTP\\Response"
               }
            ]
         },
         {
            "file":"/var/www/html/apps/dav/lib/Server.php",
            "line":371,
            "function":"start",
            "class":"OCA\\DAV\\Connector\\Sabre\\Server",
            "type":"->",
            "args":[
               
            ]
         },
         {
            "file":"/var/www/html/apps/dav/appinfo/v2/remote.php",
            "line":19,
            "function":"exec",
            "class":"OCA\\DAV\\Server",
            "type":"->",
            "args":[
               
            ]
         },
         {
            "file":"/var/www/html/remote.php",
            "line":146,
            "args":[
               "/var/www/html/apps/dav/appinfo/v2/remote.php"
            ],
            "function":"require_once"
         }
      ],
      "File":"/var/www/html/3rdparty/aws/aws-sdk-php/src/WrappedHttpHandler.php",
      "Line":196,
      "Previous":{
         "Exception":"GuzzleHttp\\Exception\\ClientException",
         "Message":"Client error: `POST https://storage.googleapis.com/REDACTED?delete` resulted in a `400 Bad Request` response:\n<?xml version='1.0' encoding='UTF-8'?><Error><Code>NotImplemented</Code><Message>A header or query you provided requeste (truncated...)\n",
         "Code":400,
         "Trace":[
            {
               "file":"/var/www/html/3rdparty/guzzlehttp/guzzle/src/Middleware.php",
               "line":72,
               "function":"create",
               "class":"GuzzleHttp\\Exception\\RequestException",
               "type":"::",
               "args":[
                  "*** sensitive parameters replaced ***"
               ]
            },
            {
               "file":"/var/www/html/3rdparty/guzzlehttp/promises/src/Promise.php",
               "line":209,
               "function":"GuzzleHttp\\{closure}",
               "class":"GuzzleHttp\\Middleware",
               "type":"::",
               "args":[
                  "*** sensitive parameters replaced ***"
               ]
            },
            {
               "file":"/var/www/html/3rdparty/guzzlehttp/promises/src/Promise.php",
               "line":158,
               "function":"callHandler",
               "class":"GuzzleHttp\\Promise\\Promise",
               "type":"::",
               "args":[
                  1,
                  "*** sensitive parameters replaced ***",
                  "*** sensitive parameters replaced ***"
               ]
            },
            {
               "file":"/var/www/html/3rdparty/guzzlehttp/promises/src/TaskQueue.php",
               "line":52,
               "function":"GuzzleHttp\\Promise\\{closure}",
               "class":"GuzzleHttp\\Promise\\Promise",
               "type":"::",
               "args":[
                  "*** sensitive parameters replaced ***"
               ]
            },
            {
               "file":"/var/www/html/3rdparty/guzzlehttp/guzzle/src/Handler/CurlMultiHandler.php",
               "line":163,
               "function":"run",
               "class":"GuzzleHttp\\Promise\\TaskQueue",
               "type":"->",
               "args":[
                  
               ]
            },
            {
               "file":"/var/www/html/3rdparty/guzzlehttp/guzzle/src/Handler/CurlMultiHandler.php",
               "line":189,
               "function":"tick",
               "class":"GuzzleHttp\\Handler\\CurlMultiHandler",
               "type":"->",
               "args":[
                  
               ]
            },
            {
               "file":"/var/www/html/3rdparty/guzzlehttp/promises/src/Promise.php",
               "line":251,
               "function":"execute",
               "class":"GuzzleHttp\\Handler\\CurlMultiHandler",
               "type":"->",
               "args":[
                  true
               ]
            },
            {
               "file":"/var/www/html/3rdparty/guzzlehttp/promises/src/Promise.php",
               "line":227,
               "function":"invokeWaitFn",
               "class":"GuzzleHttp\\Promise\\Promise",
               "type":"->",
               "args":[
                  
               ]
            },
            {
               "file":"/var/www/html/3rdparty/guzzlehttp/promises/src/Promise.php",
               "line":272,
               "function":"waitIfPending",
               "class":"GuzzleHttp\\Promise\\Promise",
               "type":"->",
               "args":[
                  
               ]
            },
            {
               "file":"/var/www/html/3rdparty/guzzlehttp/promises/src/Promise.php",
               "line":229,
               "function":"invokeWaitList",
               "class":"GuzzleHttp\\Promise\\Promise",
               "type":"->",
               "args":[
                  
               ]
            },
            {
               "file":"/var/www/html/3rdparty/guzzlehttp/promises/src/Promise.php",
               "line":272,
               "function":"waitIfPending",
               "class":"GuzzleHttp\\Promise\\Promise",
               "type":"->",
               "args":[
                  
               ]
            },
            {
               "file":"/var/www/html/3rdparty/guzzlehttp/promises/src/Promise.php",
               "line":229,
               "function":"invokeWaitList",
               "class":"GuzzleHttp\\Promise\\Promise",
               "type":"->",
               "args":[
                  
               ]
            },
            {
               "file":"/var/www/html/3rdparty/guzzlehttp/promises/src/Promise.php",
               "line":69,
               "function":"waitIfPending",
               "class":"GuzzleHttp\\Promise\\Promise",
               "type":"->",
               "args":[
                  
               ]
            },
            {
               "file":"/var/www/html/3rdparty/aws/aws-sdk-php/src/AwsClientTrait.php",
               "line":58,
               "function":"wait",
               "class":"GuzzleHttp\\Promise\\Promise",
               "type":"->",
               "args":[
                  
               ]
            },
            {
               "file":"/var/www/html/3rdparty/aws/aws-sdk-php/src/AwsClientTrait.php",
               "line":86,
               "function":"execute",
               "class":"Aws\\AwsClient",
               "type":"->",
               "args":[
                  {
                     "__class__":"Aws\\Command"
                  }
               ]
            },
            {
               "file":"/var/www/html/apps/files_external/lib/Lib/Storage/AmazonS3.php",
               "line":281,
               "function":"__call",
               "class":"Aws\\AwsClient",
               "type":"->",
               "args":[
                  "deleteObjects",
                  [
                     {
                        "Bucket":"REDACTED",
                        "Delete":{
                           "Objects":[
                              {
                                 "Key":"testtodel-template-tsqmp/AA/",
                                 "LastModified":{
                                    "__class__":"Aws\\Api\\DateTimeResult",
                                    "__properties__":"Encoding skipped as the maximum nesting level was reached"
                                 },
                                 "ETag":"\"d41d8cd98f00b204e9800998ecf8427e\"",
                                 "Size":"0"
                              },
                              {
                                 "Key":"testtodel-template-tsqmp/mock/emri_config.json",
                                 "LastModified":{
                                    "__class__":"Aws\\Api\\DateTimeResult",
                                    "__properties__":"Encoding skipped as the maximum nesting level was reached"
                                 },
                                 "ETag":"\"3c70f6c1a222738d6cde9fb5d77df14b\"",
                                 "Size":"305"
                              },
                              {
                                 "Key":"testtodel-template-tsqmp/mock/gb_config.json",
                                 "LastModified":{
                                    "__class__":"Aws\\Api\\DateTimeResult",
                                    "__properties__":"Encoding skipped as the maximum nesting level was reached"
                                 },
                                 "ETag":"\"8220939d579c9d94d3a5387f61d4fd99\"",
                                 "Size":"634"
                              },
                              {
                                 "Key":"testtodel-template-tsqmp/mock/mbhb_config.json",
                                 "LastModified":{
                                    "__class__":"Aws\\Api\\DateTimeResult",
                                    "__properties__":"Encoding skipped as the maximum nesting level was reached"
                                 },
                                 "ETag":"\"370791267c0c5aa1ffda8bf9187cc336\"",
                                 "Size":"229"
                              }
                           ]
                        }
                     }
                  ]
               ]
            },
            {
               "file":"/var/www/html/apps/files_external/lib/Lib/Storage/AmazonS3.php",
               "line":256,
               "function":"batchDelete",
               "class":"OCA\\Files_External\\Lib\\Storage\\AmazonS3",
               "type":"->",
               "args":[
                  "testtodel-template-tsqmp"
               ]
            },
            {
               "file":"/var/www/html/lib/private/Files/Storage/Wrapper/Wrapper.php",
               "line":79,
               "function":"rmdir",
               "class":"OCA\\Files_External\\Lib\\Storage\\AmazonS3",
               "type":"->",
               "args":[
                  "testtodel-template-tsqmp"
               ]
            },
            {
               "file":"/var/www/html/lib/private/Files/Storage/Wrapper/Availability.php",
               "line":92,
               "function":"rmdir",
               "class":"OC\\Files\\Storage\\Wrapper\\Wrapper",
               "type":"->",
               "args":[
                  "testtodel-template-tsqmp"
               ]
            },
            {
               "file":"/var/www/html/lib/private/Files/View.php",
               "line":1203,
               "function":"rmdir",
               "class":"OC\\Files\\Storage\\Wrapper\\Availability",
               "type":"->",
               "args":[
                  "testtodel-template-tsqmp"
               ]
            },
            {
               "file":"/var/www/html/lib/private/Files/View.php",
               "line":291,
               "function":"basicOperation",
               "class":"OC\\Files\\View",
               "type":"->",
               "args":[
                  "rmdir",
                  "/REDACTED/testtodel-template-tsqmp",
                  [
                     "delete"
                  ]
               ]
            },
            {
               "file":"/var/www/html/apps/dav/lib/Connector/Sabre/Directory.php",
               "line":271,
               "function":"rmdir",
               "class":"OC\\Files\\View",
               "type":"->",
               "args":[
                  "/REDACTED/testtodel-template-tsqmp"
               ]
            },
            {
               "file":"/var/www/html/3rdparty/sabre/dav/lib/DAV/Tree.php",
               "line":197,
               "function":"delete",
               "class":"OCA\\DAV\\Connector\\Sabre\\Directory",
               "type":"->",
               "args":[
                  
               ]
            },
            {
               "file":"/var/www/html/3rdparty/sabre/dav/lib/DAV/CorePlugin.php",
               "line":281,
               "function":"delete",
               "class":"Sabre\\DAV\\Tree",
               "type":"->",
               "args":[
                  "files/admin/REDACTED/testtodel-template-tsqmp"
               ]
            },
            {
               "file":"/var/www/html/3rdparty/sabre/event/lib/WildcardEmitterTrait.php",
               "line":89,
               "function":"httpDelete",
               "class":"Sabre\\DAV\\CorePlugin",
               "type":"->",
               "args":[
                  {
                     "__class__":"Sabre\\HTTP\\Request"
                  },
                  {
                     "__class__":"Sabre\\HTTP\\Response"
                  }
               ]
            },
            {
               "file":"/var/www/html/3rdparty/sabre/dav/lib/DAV/Server.php",
               "line":472,
               "function":"emit",
               "class":"Sabre\\DAV\\Server",
               "type":"->",
               "args":[
                  "method:DELETE",
                  [
                     {
                        "__class__":"Sabre\\HTTP\\Request"
                     },
                     {
                        "__class__":"Sabre\\HTTP\\Response"
                     }
                  ]
               ]
            },
            {
               "file":"/var/www/html/apps/dav/lib/Connector/Sabre/Server.php",
               "line":43,
               "function":"invokeMethod",
               "class":"Sabre\\DAV\\Server",
               "type":"->",
               "args":[
                  {
                     "__class__":"Sabre\\HTTP\\Request"
                  },
                  {
                     "__class__":"Sabre\\HTTP\\Response"
                  }
               ]
            },
            {
               "file":"/var/www/html/apps/dav/lib/Server.php",
               "line":371,
               "function":"start",
               "class":"OCA\\DAV\\Connector\\Sabre\\Server",
               "type":"->",
               "args":[
                  
               ]
            },
            {
               "file":"/var/www/html/apps/dav/appinfo/v2/remote.php",
               "line":19,
               "function":"exec",
               "class":"OCA\\DAV\\Server",
               "type":"->",
               "args":[
                  
               ]
            },
            {
               "file":"/var/www/html/remote.php",
               "line":146,
               "args":[
                  "/var/www/html/apps/dav/appinfo/v2/remote.php"
               ],
               "function":"require_once"
            }
         ],
         "File":"/var/www/html/3rdparty/guzzlehttp/guzzle/src/Exception/RequestException.php",
         "Line":113
      },
      "message":"Error executing \"DeleteObjects\" on \"https://storage.googleapis.com/REDACTED?delete\"; AWS HTTP error: Client error: `POST https://storage.googleapis.com/REDACTED?delete` resulted in a `400 Bad Request` response:\n<?xml version='1.0' encoding='UTF-8'?><Error><Code>NotImplemented</Code><Message>A header or query you provided requeste (truncated...)\n NotImplemented (client): A header or query you provided requested a function that is not implemented. - <?xml version='1.0' encoding='UTF-8'?><Error><Code>NotImplemented</Code><Message>A header or query you provided requested a function that is not implemented.</Message><Details>POST ?delete is not implemented for objects.</Details></Error>",
      "exception":[
         
      ],
      "CustomMessage":"Error executing \"DeleteObjects\" on \"https://storage.googleapis.com/REDACTED?delete\"; AWS HTTP error: Client error: `POST https://storage.googleapis.com/REDACTED?delete` resulted in a `400 Bad Request` response:\n<?xml version='1.0' encoding='UTF-8'?><Error><Code>NotImplemented</Code><Message>A header or query you provided requeste (truncated...)\n NotImplemented (client): A header or query you provided requested a function that is not implemented. - <?xml version='1.0' encoding='UTF-8'?><Error><Code>NotImplemented</Code><Message>A header or query you provided requested a function that is not implemented.</Message><Details>POST ?delete is not implemented for objects.</Details></Error>"
   },
   "id":"68518d599110d"
}

Additional info

No response

[antoinetran]

I am not sure if GCS S3 compatibility mode does not implement delete of a folder or if Nextcloud can do something about this. But not being able to delete a folder in Nextcloud, means needing the GCP console to delete and this is not convenient.

[joshtrichards]

It's been awhile since I've tested the GCS XML API (S3), but it tested well at the time (after Google addressed some initial incompatibilities).

Three things come to mind:

• Are you using Google's hierarchical namespace (HNS) mode by chance?
• You appear to be using a path-style endpoint; at least in AWS S3, this won't work with directory buckets (which seem to be equivalent to Google's HNS mode)
• Google's does not document how their XML API interacts with their HNS mode anywhere as far as I can tell

Refs:

• https://cloud.google.com/storage/docs/request-endpoints#xml-api
• https://docs.aws.amazon.com/AmazonS3/latest/userguide/Welcome.html
• https://docs.aws.amazon.com/AmazonS3/latest/API/API_DeleteObjects.html#API_DeleteObjects_RequestSyntax
• https://cloud.google.com/storage/docs/xml-api/reference-methods
• https://cloud.google.com/storage/docs/hns-overview

[antoinetran]

It's been awhile since I've tested the GCS XML API (S3), but it tested well at the time (after Google addressed some initial incompatibilities).

Three things come to mind:

* Are you using Google's `hierarchical namespace (HNS)` mode by chance?

* You appear to be using a path-style endpoint; at least in AWS S3, this won't work with directory buckets (which seem to be equivalent to Google's HNS mode)

* Google's does not document how their XML API interacts with their HNS mode anywhere as far as I can tell

Refs:

* https://cloud.google.com/storage/docs/request-endpoints#xml-api

* https://docs.aws.amazon.com/AmazonS3/latest/userguide/Welcome.html

* https://docs.aws.amazon.com/AmazonS3/latest/API/API_DeleteObjects.html#API_DeleteObjects_RequestSyntax

* https://cloud.google.com/storage/docs/xml-api/reference-methods

* https://cloud.google.com/storage/docs/hns-overview

I have tried:

• HNS off with no uniform bucket-level access
  • with path style ON
  • with path style OFF
    Same error.
• HNS on: Cannot insert legacy ACL for an object when uniform bucket-level access is enabled. because HNS requires uniform bucket-level access

For info I create buckets with:

gcloud storage buckets create gs://BUCKET --project XXX --location "XXX" --default-storage-class STANDARD --no-uniform-bucket-level-access

[joshtrichards]

I found this, which suggests Google's S3 doesn't support POST /?delete:

https://cloud.google.com/storage/docs/migrating#methods-comparison

So this is a GCS limitation with regard to their S3 compatibility.

We use the AWS S3 SDK. Other S3 implementations, such as Minio, support this just fine. It's been around for many years.

Google has improved interoperability over time in the past:

https://cloud.google.com/storage/docs/release-notes

Looks like there is an open Issue on their end. As a Google customer you may want to +1 it:

https://issuetracker.google.com/issues/162653700