Provide file is not an image - External 3.8.1 Netcloud server 21.0.1.1

[stratege1401]

Provide file is not an image - External 3.8.1 Netcloud server 21.0.1.1

Steps to reproduce

trying to upload a new Icon for external site.

Expected behaviour

png/svg/jpg should be uploading

Actual behaviour

Whater format i use ( jpg, png, svg ) end's up with error: Upload new icon: myfiles.png Provided file is not an image. xxx.png file size is 5k

Server configuration detail

Operating system: Linux 5.10.0-6-amd64 #1 SMP Debian 5.10.28-1 (2021-04-09) x86_64

Webserver: Apache (apache2handler)

Database: mysql 10.5.9

PHP version:

7.4.15
Modules loaded: Core, date, libxml, openssl, pcre, zlib, filter, hash, Reflection, SPL, session, standard, sodium, apache2handler, mysqlnd, PDO, xml, apcu, bcmath, bz2, calendar, ctype, curl, dom, mbstring, FFI, fileinfo, ftp, gd, gettext, gmp, iconv, igbinary, imagick, imap, intl, json, exif, mysqli, pdo_mysql, apc, posix, readline, redis, shmop, SimpleXML, sockets, sysvmsg, sysvsem, sysvshm, tokenizer, xmlreader, xmlwriter, xsl, zip, Phar, Zend OPcache

Nextcloud version: 21.0.1 - 21.0.1.1

Updated from an older Nextcloud/ownCloud or fresh install: NO - Fresh install

Where did you install Nextcloud from: Used official nextcloud-setting.php

Signing status

Array
(
)

List of activated apps

Enabled:
 - accessibility: 1.7.0
 - activity: 2.14.3
 - announcementcenter: 5.0.0
 - apporder: 0.12.0
 - auto_groups: 1.3.1
 - breezedark: 21.0.7
 - bruteforcesettings: 2.1.0
 - camerarawpreviews: 0.7.11
 - cloud_federation_api: 1.4.0
 - comments: 1.11.0
 - contactsinteraction: 1.2.0
 - data_request: 1.8.0
 - dav: 1.17.1
 - defaultgroup: 0.3.0
 - external: 3.8.1
 - federatedfilesharing: 1.11.0
 - federation: 1.11.0
 - files: 1.16.0
 - files_downloadactivity: 1.10.0
 - files_pdfviewer: 2.1.0
 - files_rightclick: 1.0.0
 - files_sharing: 1.13.1
 - files_snapshots: 1.0.1
 - files_trashbin: 1.11.0
 - files_versions: 1.14.0
 - files_videoplayer: 1.10.0
 - firstrunwizard: 2.10.0
 - group_default_quota: 0.1.1
 - groupquota: 0.1.5
 - impersonate: 1.8.0
 - issuetemplate: 0.7.0
 - logreader: 2.6.0
 - lookup_server_connector: 1.9.0
 - nextcloud_announcements: 1.10.0
 - notifications: 2.9.0
 - oauth2: 1.9.0
 - occweb: 0.0.7
 - password_policy: 1.11.0
 - photos: 1.3.0
 - previewgenerator: 3.1.1
 - privacy: 1.5.0
 - provisioning_api: 1.11.0
 - quota_warning: 1.10.0
 - recommendations: 1.0.0
 - registration: 1.2.1
 - serverinfo: 1.11.0
 - settings: 1.3.0
 - sharebymail: 1.11.0
 - support: 1.4.0
 - survey_client: 1.9.0
 - systemtags: 1.11.0
 - terms_of_service: 1.7.0
 - text: 3.2.0
 - theming: 1.12.0
 - twofactor_backupcodes: 1.10.0
 - twofactor_email: 2.0.0
 - twofactor_nextcloud_notification: 3.1.2
 - twofactor_totp: 6.0.0
 - twofactor_u2f: 6.1.0
 - twofactor_webauthn: 0.2.9
 - unsplash: 1.2.2
 - updatenotification: 1.11.0
 - user_status: 1.1.1
 - viewer: 1.5.0
 - weather_status: 1.1.0
 - workflowengine: 2.3.0
Disabled:
 - admin_audit
 - dashboard
 - encryption
 - files_external
 - user_ldap

Configuration (config/config.php)

{
    "instanceid": "***REMOVED SENSITIVE VALUE***",
    "passwordsalt": "***REMOVED SENSITIVE VALUE***",
    "secret": "***REMOVED SENSITIVE VALUE***",
    "trusted_domains": [
        "mytrusteddomainremovefor.privacy.reason",
        "192.168.1.71"
    ],
    "memcache.local": "\\OC\\Memcache\\APCu",
    "datadirectory": "***REMOVED SENSITIVE VALUE***",
    "enable_previews": true,
    "preview_max_x": 4096,
    "preview_max_y": 4096,
    "preview_max_filesize_image": 50,
    "enabledPreviewProviders": [
        "OC\\Preview\\PNG",
        "OC\\Preview\\JPEG",
        "OC\\Preview\\GIF",
        "OC\\Preview\\HEIC",
        "OC\\Preview\\BMP",
        "OC\\Preview\\XBitmap",
        "OC\\Preview\\MP3",
        "OC\\Preview\\TXT",
        "OC\\Preview\\MarkDown",
        "OC\\Preview\\OpenDocument",
        "OC\\Preview\\Krita"
    ],
    "default_language": "fr",
    "default_phone_region": "FR",
    "knowledgebaseenabled": true,
    "dbtype": "mysql",
    "version": "21.0.1.1",
    "overwrite.cli.url": "https:\/\/n2.rkn.ovh",
    "dbname": "***REMOVED SENSITIVE VALUE***",
    "dbhost": "***REMOVED SENSITIVE VALUE***",
    "dbport": "",
    "dbtableprefix": "oc_",
    "mysql.utf8mb4": true,
    "dbuser": "***REMOVED SENSITIVE VALUE***",
    "dbpassword": "***REMOVED SENSITIVE VALUE***",
    "installed": true,
    "mail_smtpmode": "smtp",
    "mail_smtpauthtype": "LOGIN",
    "mail_smtpsecure": "ssl",
    "mail_from_address": "***REMOVED SENSITIVE VALUE***",
    "mail_domain": "***REMOVED SENSITIVE VALUE***",
    "mail_smtpauth": 1,
    "mail_smtphost": "***REMOVED SENSITIVE VALUE***",
    "mail_smtpport": "465",
    "mail_smtpname": "***REMOVED SENSITIVE VALUE***",
    "mail_smtppassword": "***REMOVED SENSITIVE VALUE***",
    "cache_chunk_gc_ttl": 86400,
    "filelocking.ttl": 3600,
    "auth.bruteforce.protection.enabled": false,
    "loglevel": 1,
    "updater.release.channel": "stable",
    "maintenance": false,
    "updater.secret": "***REMOVED SENSITIVE VALUE***",
    "app_install_overwrite": [
        "occweb",
        "defaultgroup",
        "issuetemplate"
    ],
    "twofactor_enforced": "true",
    "twofactor_enforced_groups": [
        "admin"
    ],
    "twofactor_enforced_excluded_groups": []
}

Are you using external storage, if yes which one: no

Are you using encryption:

Are you using an external user-backend, if yes which one: no

Client configuration

Browser: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.93 Safari/537.36

Operating system: irrelevant

Logs

Web server error log

NONE

Nextcloud log

{"reqId":"mSheFuZ6q1fTjjZ1hPhs","level":3,"time":"2021-05-10T16:23:04+00:00","remoteAddr":"192.168.1.254","user":"xxxxxxx","app":"PHP","method":"POST","url":"/index.php/apps/external/icons","message":{"Exception":"Error","Message":"getimagesize(): Filename cannot be empty at /var/www/html/apps/external/lib/Controller/IconController.php#91","Code":0,"Trace":[{"function":"onError","class":"OC\\Log\\ErrorHandler","type":"::"},{"file":"/var/www/html/apps/external/lib/Controller/IconController.php","line":91,"function":"getimagesize"},{"file":"/var/www/html/lib/private/AppFramework/Http/Dispatcher.php","line":218,"function":"uploadIcon","class":"OCA\\External\\Controller\\IconController","type":"->"},{"file":"/var/www/html/lib/private/AppFramework/Http/Dispatcher.php","line":127,"function":"executeController","class":"OC\\AppFramework\\Http\\Dispatcher","type":"->"},{"file":"/var/www/html/lib/private/AppFramework/App.php","line":157,"function":"dispatch","class":"OC\\AppFramework\\Http\\Dispatcher","type":"->"},{"file":"/var/www/html/lib/private/Route/Router.php","line":302,"function":"main","class":"OC\\AppFramework\\App","type":"::"},{"file":"/var/www/html/lib/base.php","line":993,"function":"match","class":"OC\\Route\\Router","type":"->"},{"file":"/var/www/html/index.php","line":37,"function":"handleRequest","class":"OC","type":"::"}],"File":"/var/www/html/lib/private/Log/ErrorHandler.php","Line":92,"CustomMessage":"--"},"userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.93 Safari/537.36","version":"21.0.1.1"}

Browser log

irrelevant

[nickvergessen]

Can you provide the file?

[stratege1401]

test.zip

https://n2.rkn.ovh/index.php/s/SBKyAkcSLG82CMR

test zip is a svg, seem github does not support this file extension for uploading.

Failing with all of them.
Failing with any others.
And this is a fresh install test server, with allow uploading and is running as my personal test rig ( meaning chown and chmod or vhost allow uploading, of course )

[stratege1401]

Issue still alive after updating nextcloud to 21.0.2

[nickvergessen]

Not sure what's wrong for you. The file works fine here.

[FoxXxHater]

I have the same Error...
I have the Nextcloud Version "20.0.12 - 20.0.12.1"

P.S. its an new Installation

[FoxXxHater]

Settings.-.FoxCo.Network.-.CLOUD.-.Google.Chrome.2021-09-04.23-17-14.mp4

In this Video we can see that i select the "google-logo.png" an then the "error"

[github-actions]

Hello there,
Thank you so much for taking the time and effort to create a pull request to our Nextcloud project.

We hope that the reviewing process is going smooth and is helpful for you. We want to ensure your pull request is reviewed to your satisfaction. If you have a moment, we would appreciate your feedback on your experience with our community management team.

Your feedback is valuable to us as we continuously strive to improve our community developer experience. Please take a moment to complete our short survey by clicking on the following link: https://cloud.nextcloud.com/apps/forms/s/i9Ago4EQRZ7TWxjfmeEpPkf6

Thank you for contributing to Nextcloud and we hope to hear from you soon!

[provokateurin]

@stratege1401 can you test this on the latest versions of the server and this app? I'm not able to reproduce this either with the image you provided and Firefox reports the correct mime type. I wonder if your instance is missing imagick svg support and if that could be the problem in this case 🤔

[joshtrichards]

Going to close this since no further reports received nor requested info received after >1 year.

If still experiencing this behavior:

• do you experience similar problems uploading images in the Theming area of Nextcloud? (has similar upload code)
• please post the browser inspector output:
  • from the Network tab for the icons POST transaction; specifically the first few lines of the request payload
  • from the Console tab

Also check whether you're using anything like mod_security, Cloudflare, etc.