[Bug]: ImageViewer for public shares is not working inside subfolders.

[da-wilky]

⚠️ 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

I have a folder with multiple subfolders that got images in it, like:
Parent

• Sub1
  • Image1.jpg
  • Image2.jpg
  • ...
• Sub2
  • Image1.jpg
  • ...
• ...

Inside Nextcloud I can open and view those images inside the Viewer.
Using a Public Share for a Sub-Folder (e.g. Sub1) I can also use the Viewer to click through the images.

BUG:
Using a Public Share for the Parent Folder I can no longer click through the Images inside the subfolder. Clicking on an Image loads it into the Viewer, but I cant show the next image by clicking the arrow/arrow key.
On Image load the Browser Console shows an error:

Could not open file /hello/IMG_3105.JPG TypeError: can't access property "filename", h is undefined
    currentIndex Viewer.vue:800
    openFileInfo Viewer.vue:800
[Viewer.vue:681:1](/apps/viewer/src/views/Viewer.vue)
    openFile Viewer.vue:681

On each arrow click the following error occurs:

TypeError: can't access property "mime", e is undefined
    openFileFromList Viewer.vue:818
    next Viewer.vue:1085
    VueJS 4
    next NcModal.mjs:431
    handleKeydown NcModal.mjs:473

Steps to reproduce

1. Load Images into a folder inside Nextcloud.
2. Share the parent folder of the folder via public link.
3. Open the public link, go into the folder, open an image, try to click to the next image.

Expected behavior

The next image should be displayed inside the viewer.

Nextcloud Server version

31

Operating system

Debian/Ubuntu

PHP engine version

Other

Web server

Other

Database engine version

MariaDB

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

Upgraded to a MAJOR version (ex. 31 to 32)

Are you using the Nextcloud Server Encryption module?

Encryption is Disabled

What user-backends are you using?

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

Configuration report

{
    "system": {
        "theme": "mine",
        "htaccess.RewriteBase": "\/",
        "memcache.local": "\\OC\\Memcache\\APCu",
        "memcache.distributed": "\\OC\\Memcache\\Redis",
        "memcache.locking": "\\OC\\Memcache\\Redis",
        "redis": {
            "host": "***REMOVED SENSITIVE VALUE***",
            "port": 6379
        },
        "apps_paths": [
            {
                "path": "\/var\/www\/html\/apps",
                "url": "\/apps",
                "writable": false
            },
            {
                "path": "\/var\/www\/html\/custom_apps",
                "url": "\/custom_apps",
                "writable": true
            }
        ],
        "default_phone_region": "DE",
        "instanceid": "***REMOVED SENSITIVE VALUE***",
        "passwordsalt": "***REMOVED SENSITIVE VALUE***",
        "secret": "***REMOVED SENSITIVE VALUE***",
        "trusted_domains": [
            "***REMOVED SENSITIVE VALUE***"
        ],
        "datadirectory": "***REMOVED SENSITIVE VALUE***",
        "dbtype": "mysql",
        "version": "31.0.9.1",
        "overwrite.cli.url": "***REMOVED SENSITIVE VALUE***",
        "dbname": "***REMOVED SENSITIVE VALUE***",
        "dbhost": "***REMOVED SENSITIVE VALUE***",
        "dbport": "3306",
        "dbtableprefix": "oc_",
        "mysql.utf8mb4": true,
        "dbuser": "***REMOVED SENSITIVE VALUE***",
        "dbpassword": "***REMOVED SENSITIVE VALUE***",
        "installed": true,
        "loglevel": 1,
        "maintenance": false,
        "updater.release.channel": "stable",
        "mail_smtpmode": "smtp",
        "mail_smtphost": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpport": "465",
        "mail_smtpauthtype": "LOGIN",
        "mail_from_address": "***REMOVED SENSITIVE VALUE***",
        "mail_domain": "***REMOVED SENSITIVE VALUE***",
        "mail_sendmailmode": "smtp",
        "mail_smtpauth": true,
        "mail_smtpname": "***REMOVED SENSITIVE VALUE***",
        "mail_smtppassword": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpsecure": "ssl",
        "overwritehost": "***REMOVED SENSITIVE VALUE***",
        "overwriteprotocol": "https",
        "trusted_proxies": "***REMOVED SENSITIVE VALUE***",
        "share_folder": "\/F\u00fcr mich geteilt",
        "preview_max_memory": 256,
        "default_language": "de",
        "default_locale": "de_DE",
        "app_install_overwrite": [
            "impersonate"
        ],
        "skeletondirectory": "",
        "templatedirectory": "",
        "trashbin_retention_obligation": "30, 180",
        "max_chunk_size": 78643200,
        "allow_user_to_change_display_name": false,
        "lost_password_link": "disabled",
        "remember_login_cookie_lifetime": 1296000,
        "session_lifetime": 86400,
        "session_relaxed_expiry": false,
        "session_keepalive": true,
        "auto_logout": false,
        "oidc_login_provider_url": "***REMOVED SENSITIVE VALUE***",
        "oidc_login_client_id": "***REMOVED SENSITIVE VALUE***",
        "oidc_login_client_secret": "***REMOVED SENSITIVE VALUE***",
        "oidc_login_auto_redirect": true,
        "oidc_login_end_session_redirect": false,
        "oidc_login_logout_url": "***REMOVED SENSITIVE VALUE***",
        "oidc_login_button_text": "Log in with OpenID",
        "oidc_login_hide_password_form": true,
        "oidc_login_use_id_token": false,
        "oidc_login_attributes": {
            "id": "preferred_username",
            "name": "name",
            "mail": "email",
            "groups": "nextcloudgroups"
        },
        "oidc_login_use_external_storage": false,
        "oidc_login_scope": "openid",
        "oidc_login_disable_registration": false,
        "oidc_login_redir_fallback": false,
        "oidc_login_tls_verify": true,
        "oidc_create_groups": false,
        "oidc_login_public_key_caching_time": 86400,
        "oidc_login_min_time_between_jwks_requests": 10,
        "oidc_login_well_known_caching_time": 86400,
        "oidc_login_webdav_enabled": false,
        "oidc_login_password_authentication": false,
        "oidc_login_update_avatar": false,
        "oidc_login_skip_proxy": false,
        "oidc_login_code_challenge_method": "",
        "maintenance_window_start": 3,
        "upgrade.disable-web": true,
        "memories.db.triggers.fcu": true,
        "memories.exiftool": "\/var\/www\/html\/custom_apps\/memories\/bin-ext\/exiftool-amd64-glibc",
        "memories.vod.path": "\/var\/www\/html\/custom_apps\/memories\/bin-ext\/go-vod-amd64"
    }
}

List of activated Apps

Enabled:
  - activity: 4.0.0
  - admin_audit: 1.21.0
  - announcementcenter: 7.2.1
  - app_api: 5.0.2
  - bruteforcesettings: 4.0.0
  - calendar: 5.5.4
  - circles: 31.0.0
  - cloud_federation_api: 1.14.0
  - comments: 1.21.0
  - contacts: 7.3.2
  - contactsinteraction: 1.12.0
  - dashboard: 7.11.0
  - dav: 1.33.0
  - external: 6.0.2
  - federatedfilesharing: 1.21.0
  - federation: 1.21.0
  - files: 2.3.1
  - files_downloadlimit: 4.0.0
  - files_pdfviewer: 4.0.0
  - files_reminders: 1.4.0
  - files_sharing: 1.23.1
  - files_trashbin: 1.21.0
  - files_versions: 1.24.0
  - firstrunwizard: 4.0.0
  - groupfolders: 19.1.5
  - impersonate: 2.0.0
  - logreader: 4.0.0
  - lookup_server_connector: 1.19.0
  - memories: 7.6.2
  - nextcloud_announcements: 3.0.0
  - notifications: 4.0.0
  - oauth2: 1.19.1
  - oidc_login: 3.2.2
  - onlyoffice: 9.10.0
  - password_policy: 3.0.0
  - photos: 4.0.0
  - privacy: 3.0.0
  - profile: 1.0.0
  - provisioning_api: 1.21.0
  - recommendations: 4.0.0
  - related_resources: 2.0.0
  - serverinfo: 3.0.0
  - settings: 1.14.0
  - sharebymail: 1.21.0
  - support: 3.0.0
  - survey_client: 3.0.0
  - systemtags: 1.21.1
  - text: 5.0.0
  - theming: 2.6.1
  - theming_customcss: 1.18.0
  - twofactor_backupcodes: 1.20.0
  - updatenotification: 1.21.0
  - user_status: 1.11.0
  - viewer: 4.0.0
  - webhook_listeners: 1.2.0
  - workflowengine: 2.13.0
Disabled:
  - deck: 1.15.2 (installed 1.15.2)
  - encryption: 2.19.0
  - files_external: 1.23.0
  - files_rightclick: 0.15.1 (installed 1.6.0)
  - forms: 5.1.2 (installed 5.1.2)
  - mediadc: 0.4.0 (installed 0.4.0)
  - suspicious_login: 9.0.1
  - twofactor_nextcloud_notification: 5.0.0
  - twofactor_totp: 13.0.0-dev.0
  - user_ldap: 1.22.0
  - weather_status: 1.11.0 (installed 1.0.0)

Nextcloud Signing status

No errors have been found.

Nextcloud Logs

Additional info

I am using the docker nextcloud image (nextcloud:production-apache) (currently 31.0.9).

[da-wilky]

Tested this on a second instance with a similar setup using docker and the same Nextcloud version (31.0.9). The same error occurs.

[da-wilky]

I setup a new fresh instance with version 30.0.15 experiencing the same problem.
The Nextcloud version 29.0.16.1 is the newest I can confirm this bug doesnt exist yet.

[vittorio-prodomo]

Stumbled across this bug right now as well.

[dimdjd]

Stumbled across this bug right now. Docker AIO v11.9.0 Nextcloud Hub 25 Autumn (32.0.0) Fresh install

[jonas2515]

Just ran into this one is as well, would be nice to get the fix in soonish.

[crti]

Can confirm this on the following system/s (4 NC installs)
NC: 31.0.9 and 32.0.0
Shared Hosting with no root access, no SHH, no OPCache
OS: Linux
Server: Apache
PHP: 8.3.25-nmm1
DB: mysql 32.0.0.13
Mem: 768M
Locking: Active
Debug: inactive
Pretty URLs: inactive and active

Hosters specialized on NC like portknox.net seem to have some hotfix applied since on 31.0.9 this bug does not show up.

The support of my Shared Hosting suggested to wait for an update or to apply manually this hotfix
tabedzki@ab52cab

See also #2976

I will wait if one of the next 2-3 32.0.x updates fixes this, if not I will probably try a hotfix since this seems important enough for one public NC instance/share with many media in subfolders.