[Bug]: Issue with Photo Backup from Android App - X-OC-MTime Error

[tib33700]

⚠️ This issue respects the following points: ⚠️

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

Bug description

Hello everyone,

I am experiencing a specific issue with my Nextcloud instance during the automatic backup of photos from my Android phone. The error occurs when certain old photos are uploaded to the server and is manifested by an error related to the X-OC-MTime header.

Error Details:

{"reqId":"JKOuKcnLdiIQjm92AMuX","level":3,"time":"2024-01-08T12:13:34+01:00","remoteAddr":"127.0.0.1","user":"tibo","app":"webdav","method":"PUT","url":"/remote.php/dav/files/tibo/InstantUpload/Camera/2023/05/20230506_184321.jpg","message":"X-OC-MTime header must be a valid positive integer", ...}

The key part of the error message is: "X-OC-MTime header must be a valid positive integer". This occurs when trying to upload photos taken with my Android phone, via the Nextcloud app.

Configuration:

Nextcloud Version: 27.1.5.1 Nextcloud Android App: Version 3.27.0 Server: Apache on Ubuntu I have checked the server-side configurations, and everything seems correct. This issue only occurs with certain photos, and not systematically. I suspect it might be related to how the photo metadata is handled or transmitted by the Android app.

Has anyone else encountered this issue or have suggestions on how to resolve it? Any help or guidance would be greatly appreciated.

Thank you in advance for your support and advice.

Steps to reproduce

1. 2. 3.

Expected behavior

No error...

Installation method

Community Manual installation with Archive

Nextcloud Server version

master

Operating system

Debian/Ubuntu

PHP engine version

PHP 8.1

Web server

Apache (supported)

Database engine version

MySQL

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

Fresh Nextcloud Server install

Are you using the Nextcloud Server Encryption module?

None

What user-backends are you using?

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

Configuration report

{
    "system": {
        "instanceid": "***REMOVED SENSITIVE VALUE***",
        "passwordsalt": "***REMOVED SENSITIVE VALUE***",
        "trusted_domains": [
            "***REMOVED SENSITIVE VALUE***",
            "10.8.0.1",
            "***REMOVED SENSITIVE VALUE***"
        ],
        "datadirectory": "***REMOVED SENSITIVE VALUE***",
        "version": "27.1.5.1",
        "dbtype": "mysql",
        "dbhost": "***REMOVED SENSITIVE VALUE***",
        "dbname": "***REMOVED SENSITIVE VALUE***",
        "dbuser": "***REMOVED SENSITIVE VALUE***",
        "dbpassword": "***REMOVED SENSITIVE VALUE***",
        "dbtableprefix": "oc_",
        "installed": true,
        "default_language": "fr",
        "force_language": "fr",
        "default_locale": "fr_FR",
        "default_phone_region": "FR",
        "force_locale": "fr_FR",
        "knowledgebaseenabled": true,
        "allow_user_to_change_display_name": true,
        "remember_login_cookie_lifetime": 1296000,
        "session_lifetime": 86400,
        "session_keepalive": true,
        "auto_logout": false,
        "token_auth_enforced": false,
        "token_auth_activity_update": 60,
        "auth.bruteforce.protection.enabled": true,
        "auth.webauthn.enabled": true,
        "hide_login_form": false,
        "mail_domain": "***REMOVED SENSITIVE VALUE***",
        "mail_from_address": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpdebug": true,
        "mail_smtpmode": "smtp",
        "mail_smtphost": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpport": "465",
        "mail_smtptimeout": 10,
        "mail_smtpauthtype": "LOGIN",
        "mail_template_class": "\\OC\\Mail\\EMailTemplate",
        "mail_send_plaintext_only": false,
        "mail_smtpstreamoptions": [],
        "mail_sendmailmode": "smtp",
        "overwriteprotocol": "https",
        "htaccess.RewriteBase": "\/",
        "htaccess.IgnoreFrontController": false,
        "trashbin_retention_obligation": "auto, 10",
        "versions_retention_obligation": "auto",
        "appcodechecker": true,
        "updatechecker": true,
        "updater.server.url": "https:\/\/updates.nextcloud.com\/updater_server\/",
        "updater.release.channel": "stable",
        "has_internet_connection": true,
        "connectivity_check_domains": [
            "www.nextcloud.com",
            "www.startpage.com",
            "www.eff.org",
            "www.edri.org"
        ],
        "check_for_working_wellknown_setup": true,
        "check_for_working_htaccess": true,
        "check_data_directory_permissions": true,
        "config_is_read_only": false,
        "log_type": "file",
        "logfilemode": 416,
        "loglevel": 2,
        "syslog_tag": "Nextcloud",
        "log.condition": {
            "shared_secret": "***REMOVED SENSITIVE VALUE***",
            "users": [
                "tibo"
            ],
            "apps": [
                "files"
            ]
        },
        "logdateformat": "F d, Y H:i:s",
        "logtimezone": "Europe\/Berlin",
        "log_query": false,
        "log_rotate_size": 104857600,
        "customclient_desktop": "https:\/\/nextcloud.com\/install\/#install-clients",
        "customclient_android": "https:\/\/play.google.com\/store\/apps\/details?id=com.nextcloud.client",
        "customclient_ios": "https:\/\/itunes.apple.com\/us\/app\/nextcloud\/id1125420102?mt=8",
        "customclient_ios_appid": "1125420102",
        "appstoreenabled": true,
        "appstoreurl": "https:\/\/apps.nextcloud.com\/api\/v1",
        "appsallowlist": [],
        "apps_paths": [
            {
                "path": "\/home\/nextcloud\/apps",
                "url": "\/apps",
                "writable": true
            }
        ],
        "enable_previews": true,
        "preview_max_x": 4096,
        "preview_max_y": 4096,
        "preview_max_filesize_image": 50,
        "preview_max_memory": 128,
        "enabledPreviewProviders": [
            "OC\\Preview\\PNG",
            "OC\\Preview\\JPEG",
            "OC\\Preview\\GIF",
            "OC\\Preview\\BMP",
            "OC\\Preview\\XBitmap",
            "OC\\Preview\\MP3",
            "OC\\Preview\\TXT",
            "OC\\Preview\\MarkDown",
            "OC\\Preview\\OpenDocument",
            "OC\\Preview\\Krita"
        ],
        "ldapUserCleanupInterval": 51,
        "sort_groups_by_name": false,
        "comments.managerFactory": "\\OC\\Comments\\ManagerFactory",
        "systemtags.managerFactory": "\\OC\\SystemTag\\ManagerFactory",
        "maintenance": false,
        "cache_path": "",
        "cache_chunk_gc_ttl": 86400,
        "objectstore.multibucket.preview-distribution": true,
        "sharing.managerFactory": "\\OC\\Share20\\ProviderFactory",
        "sharing.maxAutocompleteResults": 25,
        "sharing.minSearchStringLength": 0,
        "sharing.enable_share_accept": false,
        "sharing.force_share_accept": false,
        "sharing.allow_custom_share_folder": true,
        "sharing.enable_share_mail": true,
        "transferIncomingShares": false,
        "tempdirectory": "\/home\/nextcloud\/data\/tmp\/nextcloudtemp",
        "hashing_default_password": false,
        "hashingThreads": 1,
        "hashingMemoryCost": 65536,
        "hashingTimeCost": 4,
        "hashingCost": 10,
        "blacklisted_files": [
            ".htaccess"
        ],
        "share_folder": "\/",
        "theme": "",
        "cipher": "AES-256-CTR",
        "minimum.supported.desktop.version": "2.0.0",
        "localstorage.allowsymlinks": true,
        "quota_include_external_storage": false,
        "external_storage.auth_availability_delay": 1800,
        "filesystem_check_changes": 0,
        "part_file_in_storage": true,
        "filesystem_cache_readonly": false,
        "secret": "***REMOVED SENSITIVE VALUE***",
        "forwarded_for_headers": [
            "HTTP_X_FORWARDED",
            "HTTP_FORWARDED_FOR"
        ],
        "max_filesize_animated_gifs_public_sharing": 10,
        "filelocking.enabled": true,
        "filelocking.ttl": 3600,
        "memcache.local": "\\OC\\Memcache\\APCu",
        "filelocking.debug": false,
        "upgrade.disable-web": false,
        "debug": true,
        "data-fingerprint": "",
        "copied_sample_config": false,
        "lookup_server": "https:\/\/lookup.nextcloud.com",
        "gs.enabled": false,
        "gs.federation": "internal",
        "csrf.optout": [
            "\/^WebDAVFS\/",
            "\/^Microsoft-WebDAV-MiniRedir\/"
        ],
        "simpleSignUpLink.shown": true,
        "login_form_autocomplete": true,
        "files_no_background_scan": false,
        "query_log_file": "",
        "redis_log_file": "",
        "ldap_log_file": "",
        "overwrite.cli.url": "https:\/\/***REMOVED SENSITIVE VALUE***",
        "mysql.utf8mb4": true,
        "app_install_overwrite": [
            "file_upload_notification"
        ],
        "mail_smtpsecure": "ssl",
        "mail_smtpauth": 1,
        "mail_smtpname": "***REMOVED SENSITIVE VALUE***",
        "mail_smtppassword": "***REMOVED SENSITIVE VALUE***"
    }
}

List of activated Apps

Enabled:
  - activity: 2.19.0
  - bruteforcesettings: 2.7.0
  - calendar: 4.6.0
  - cloud_federation_api: 1.10.0
  - comments: 1.17.0
  - contactsinteraction: 1.8.0
  - dashboard: 7.7.0
  - dav: 1.27.0
  - federatedfilesharing: 1.17.0
  - federation: 1.17.0
  - files: 1.22.0
  - files_external: 1.19.0
  - files_pdfviewer: 2.8.0
  - files_reminders: 1.0.0
  - files_rightclick: 1.6.0
  - files_sharing: 1.19.0
  - files_trashbin: 1.17.0
  - files_versions: 1.20.0
  - firstrunwizard: 2.16.0
  - groupfolders: 15.3.2
  - logreader: 2.12.0
  - lookup_server_connector: 1.15.0
  - nextcloud_announcements: 1.16.0
  - notifications: 2.15.0
  - oauth2: 1.15.1
  - password_policy: 1.17.0
  - photos: 2.3.0
  - privacy: 1.11.0
  - provisioning_api: 1.17.0
  - recommendations: 1.6.0
  - related_resources: 1.2.0
  - serverinfo: 1.17.0
  - settings: 1.9.0
  - sharebymail: 1.17.0
  - support: 1.10.0
  - survey_client: 1.15.0
  - systemtags: 1.17.0
  - text: 3.8.0
  - theming: 2.2.0
  - twofactor_backupcodes: 1.16.0
  - updatenotification: 1.17.0
  - viewer: 2.1.0
  - weather_status: 1.7.0
  - workflowengine: 2.9.0
Disabled:
  - admin_audit: 1.17.0
  - circles: 27.0.1 (installed 23.1.0)
  - encryption: 2.15.0
  - mail: 3.2.4 (installed 3.2.4)
  - suspicious_login: 5.0.0
  - twofactor_totp: 9.0.0
  - user_ldap: 1.17.0
  - user_status: 1.7.0 (installed 1.4.0)

Nextcloud Signing status

No errors have been found.

Nextcloud Logs

{"reqId":"Alr6Y39tCg1dwaDNZ4Cm","level":3,"time":"January 08, 2024 12:47:51","remoteAddr":"127.0.0.1","user":"tibo","app":"webdav","method":"PUT","url":"/remote.php/dav/files/tibo/InstantUpload/Camera/2023/05/20230508_082325.jpg","message":"X-OC-MTime header must be a valid positive integer","userAgent":"Mozilla/5.0 (Android) Nextcloud-android/3.27.0","version":"27.1.5.1","exception":{"Exception":"InvalidArgumentException","Message":"X-OC-MTime header must be a valid positive integer","Code":0,"Trace":[{"file":"/home/nextcloud/apps/dav/lib/Connector/Sabre/Node.php","line":425,"function":"sanitizeMtime","class":"OCA\\DAV\\Connector\\Sabre\\MtimeSanitizer","type":"::"},{"file":"/home/nextcloud/apps/dav/lib/Connector/Sabre/File.php","line":378,"function":"sanitizeMtime","class":"OCA\\DAV\\Connector\\Sabre\\Node","type":"->"},{"file":"/home/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php","line":1137,"function":"put","class":"OCA\\DAV\\Connector\\Sabre\\File","type":"->"},{"file":"/home/nextcloud/3rdparty/sabre/dav/lib/DAV/CorePlugin.php","line":492,"function":"updateFile","class":"Sabre\\DAV\\Server","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/home/nextcloud/3rdparty/sabre/event/lib/WildcardEmitterTrait.php","line":89,"function":"httpPut","class":"Sabre\\DAV\\CorePlugin","type":"->"},{"file":"/home/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php","line":472,"function":"emit","class":"Sabre\\DAV\\Server","type":"->"},{"file":"/home/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php","line":253,"function":"invokeMethod","class":"Sabre\\DAV\\Server","type":"->"},{"file":"/home/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php","line":321,"function":"start","class":"Sabre\\DAV\\Server","type":"->"},{"file":"/home/nextcloud/apps/dav/lib/Server.php","line":365,"function":"exec","class":"Sabre\\DAV\\Server","type":"->"},{"file":"/home/nextcloud/apps/dav/appinfo/v2/remote.php","line":35,"function":"exec","class":"OCA\\DAV\\Server","type":"->"},{"file":"/home/nextcloud/remote.php","line":172,"args":["/home/nextcloud/apps/dav/appinfo/v2/remote.php"],"function":"require_once"}],"File":"/home/nextcloud/apps/dav/lib/Connector/Sabre/MtimeSanitizer.php","Line":37,"message":"X-OC-MTime header must be a valid positive integer","exception":{},"CustomMessage":"X-OC-MTime header must be a valid positive integer"}}
{"reqId":"IHz1uDoP08I83xy61ktp","level":3,"time":"January 08, 2024 12:47:53","remoteAddr":"127.0.0.1","user":"tibo","app":"webdav","method":"PUT","url":"/remote.php/dav/files/tibo/InstantUpload/Camera/2023/01/20230101_020335.jpg","message":"X-OC-MTime header must be a valid positive integer","userAgent":"Mozilla/5.0 (Android) Nextcloud-android/3.27.0","version":"27.1.5.1","exception":{"Exception":"InvalidArgumentException","Message":"X-OC-MTime header must be a valid positive integer","Code":0,"Trace":[{"file":"/home/nextcloud/apps/dav/lib/Connector/Sabre/Node.php","line":425,"function":"sanitizeMtime","class":"OCA\\DAV\\Connector\\Sabre\\MtimeSanitizer","type":"::"},{"file":"/home/nextcloud/apps/dav/lib/Connector/Sabre/File.php","line":378,"function":"sanitizeMtime","class":"OCA\\DAV\\Connector\\Sabre\\Node","type":"->"},{"file":"/home/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php","line":1137,"function":"put","class":"OCA\\DAV\\Connector\\Sabre\\File","type":"->"},{"file":"/home/nextcloud/3rdparty/sabre/dav/lib/DAV/CorePlugin.php","line":492,"function":"updateFile","class":"Sabre\\DAV\\Server","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/home/nextcloud/3rdparty/sabre/event/lib/WildcardEmitterTrait.php","line":89,"function":"httpPut","class":"Sabre\\DAV\\CorePlugin","type":"->"},{"file":"/home/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php","line":472,"function":"emit","class":"Sabre\\DAV\\Server","type":"->"},{"file":"/home/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php","line":253,"function":"invokeMethod","class":"Sabre\\DAV\\Server","type":"->"},{"file":"/home/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php","line":321,"function":"start","class":"Sabre\\DAV\\Server","type":"->"},{"file":"/home/nextcloud/apps/dav/lib/Server.php","line":365,"function":"exec","class":"Sabre\\DAV\\Server","type":"->"},{"file":"/home/nextcloud/apps/dav/appinfo/v2/remote.php","line":35,"function":"exec","class":"OCA\\DAV\\Server","type":"->"},{"file":"/home/nextcloud/remote.php","line":172,"args":["/home/nextcloud/apps/dav/appinfo/v2/remote.php"],"function":"require_once"}],"File":"/home/nextcloud/apps/dav/lib/Connector/Sabre/MtimeSanitizer.php","Line":37,"message":"X-OC-MTime header must be a valid positive integer","exception":{},"CustomMessage":"X-OC-MTime header must be a valid positive integer"}}
{"reqId":"8G2LjiZMkX2mzMueEZu2","level":3,"time":"January 08, 2024 12:47:54","remoteAddr":"127.0.0.1","user":"tibo","app":"webdav","method":"PUT","url":"/remote.php/dav/files/tibo/InstantUpload/Camera/2023/09/20230923_184041.jpg","message":"X-OC-MTime header must be a valid positive integer","userAgent":"Mozilla/5.0 (Android) Nextcloud-android/3.27.0","version":"27.1.5.1","exception":{"Exception":"InvalidArgumentException","Message":"X-OC-MTime header must be a valid positive integer","Code":0,"Trace":[{"file":"/home/nextcloud/apps/dav/lib/Connector/Sabre/Node.php","line":425,"function":"sanitizeMtime","class":"OCA\\DAV\\Connector\\Sabre\\MtimeSanitizer","type":"::"},{"file":"/home/nextcloud/apps/dav/lib/Connector/Sabre/File.php","line":378,"function":"sanitizeMtime","class":"OCA\\DAV\\Connector\\Sabre\\Node","type":"->"},{"file":"/home/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php","line":1137,"function":"put","class":"OCA\\DAV\\Connector\\Sabre\\File","type":"->"},{"file":"/home/nextcloud/3rdparty/sabre/dav/lib/DAV/CorePlugin.php","line":492,"function":"updateFile","class":"Sabre\\DAV\\Server","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/home/nextcloud/3rdparty/sabre/event/lib/WildcardEmitterTrait.php","line":89,"function":"httpPut","class":"Sabre\\DAV\\CorePlugin","type":"->"},{"file":"/home/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php","line":472,"function":"emit","class":"Sabre\\DAV\\Server","type":"->"},{"file":"/home/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php","line":253,"function":"invokeMethod","class":"Sabre\\DAV\\Server","type":"->"},{"file":"/home/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php","line":321,"function":"start","class":"Sabre\\DAV\\Server","type":"->"},{"file":"/home/nextcloud/apps/dav/lib/Server.php","line":365,"function":"exec","class":"Sabre\\DAV\\Server","type":"->"},{"file":"/home/nextcloud/apps/dav/appinfo/v2/remote.php","line":35,"function":"exec","class":"OCA\\DAV\\Server","type":"->"},{"file":"/home/nextcloud/remote.php","line":172,"args":["/home/nextcloud/apps/dav/appinfo/v2/remote.php"],"function":"require_once"}],"File":"/home/nextcloud/apps/dav/lib/Connector/Sabre/MtimeSanitizer.php","Line":37,"message":"X-OC-MTime header must be a valid positive integer","exception":{},"CustomMessage":"X-OC-MTime header must be a valid positive integer"}}
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Additional info

No response

[joshtrichards]

Possibly related:

nextcloud/ios#2390 nextcloud/ios#2526

[marco-calautti]

I also have this problem with the webui. I don't think it has anything to do with the kind of client you use to upload, but simply with the fact that Nextcloud throws errors when the uploded files have a wrong timestamp,