pdf viewer does not open in a public link share

[livier]

Steps to reproduce

1. Share a pdf file with public link
2. Test the link

Expected behaviour

Pdf viewer should open

Actual behaviour

Only see the download page

Server configuration detail

Operating system: Linux 5.4.41-1-pve #1 SMP PVE 5.4.41-1 (Fri, 15 May 2020 15:06:08 +0200) x86_64

Webserver: Apache/2.4.25 (Debian) (apache2handler)

Database: mysql 10.1.47

PHP version:

7.3.25-1+020201130.73+debian91.gbp042074
Modules loaded: Core, date, libxml, openssl, pcre, zlib, filter, hash, Reflection, SPL, sodium, session, standard, apache2handler, mysqlnd, PDO, xml, apcu, bcmath, calendar, ctype, curl, dom, mbstring, fileinfo, ftp, gd, gettext, gmp, iconv, imagick, intl, json, exif, mysqli, pdo_mysql, Phar, posix, readline, shmop, SimpleXML, sockets, sysvmsg, sysvsem, sysvshm, tokenizer, wddx, xmlreader, xmlwriter, xsl, zip, Zend OPcache

Nextcloud version: 20.0.5 - 20.0.5.2

Updated from an older Nextcloud/ownCloud or fresh install:

Where did you install Nextcloud from: unknown

Signing status

Array
(
)

List of activated apps

Enabled:
 - accessibility: 1.6.0
 - activity: 2.13.4
 - analytics: 3.2.0
 - apporder: 0.11.0
 - bruteforcesettings: 2.0.1
 - calendar: 2.1.3
 - cloud_federation_api: 1.3.0
 - comments: 1.10.0
 - contacts: 3.4.3
 - contactsinteraction: 1.1.0
 - dashboard: 7.0.0
 - dav: 1.16.2
 - deck: 1.2.3
 - duplicatefinder: 0.0.4
 - encryption: 2.8.1
 - federatedfilesharing: 1.10.2
 - federation: 1.10.1
 - files: 1.15.0
 - files_downloadactivity: 1.9.0
 - files_pdfviewer: 2.0.1
 - files_sharing: 1.12.2
 - files_trashbin: 1.10.1
 - files_versions: 1.13.0
 - files_videoplayer: 1.9.0
 - impersonate: 1.7.0
 - issuetemplate: 0.7.0
 - logreader: 2.5.0
 - lookup_server_connector: 1.8.0
 - mail: 1.7.2
 - maps: 0.1.8
 - nextcloud_announcements: 1.9.0
 - notifications: 2.8.0
 - oauth2: 1.8.0
 - password_policy: 1.10.1
 - photos: 1.2.3
 - polls: 1.6.3
 - privacy: 1.4.0
 - provisioning_api: 1.10.0
 - quickaccesssorting: 1.1.2
 - richdocuments: 3.7.11
 - serverinfo: 1.10.0
 - settings: 1.2.0
 - sharebymail: 1.10.0
 - spreed: 10.0.5
 - survey_client: 1.8.0
 - systemtags: 1.10.0
 - tasks: 0.13.6
 - text: 3.1.0
 - theming: 1.11.0
 - theming_customcss: 1.8.0
 - twofactor_backupcodes: 1.9.0
 - twofactor_totp: 5.0.0
 - unsplash: 1.1.7
 - updatenotification: 1.10.0
 - user_status: 1.0.1
 - viewer: 1.4.0
 - weather_status: 1.0.0
 - workflowengine: 2.2.0
Disabled:
 - admin_audit
 - circles
 - files_accesscontrol
 - files_external
 - files_rightclick
 - firstrunwizard
 - groupfolders
 - phonetrack
 - recommendations
 - support
 - user_ldap

Configuration (config/config.php)

{
    "instanceid": "***REMOVED SENSITIVE VALUE***",
    "passwordsalt": "***REMOVED SENSITIVE VALUE***",
    "secret": "***REMOVED SENSITIVE VALUE***",
    "trusted_domains": [
        "un.autre.domaine.tld",
        "cloud.penserpouragir.org"
    ],
    "overwrite.cli.url": "https:\/\/cloud.penserpouragir.org",
    "Overwriteprotocol": "https",
    "dbtype": "mysql",
    "version": "20.0.5.2",
    "dbname": "***REMOVED SENSITIVE VALUE***",
    "dbhost": "***REMOVED SENSITIVE VALUE***",
    "dbport": "",
    "dbtableprefix": "oc_",
    "dbuser": "***REMOVED SENSITIVE VALUE***",
    "dbpassword": "***REMOVED SENSITIVE VALUE***",
    "default_language": "fr",
    "installed": true,
    "loglevel": 0,
    "log_type": "file",
    "logfile": "\/var\/log\/nextcloud.log",
    "log_rotate_size": 52428800,
    "maintenance": false,
    "mail_from_address": "***REMOVED SENSITIVE VALUE***",
    "mail_smtpmode": "smtp",
    "mail_smtpauthtype": "LOGIN",
    "mail_domain": "***REMOVED SENSITIVE VALUE***",
    "mail_smtpsecure": "tls",
    "mail_smtpauth": 1,
    "mail_smtphost": "***REMOVED SENSITIVE VALUE***",
    "mail_smtpname": "***REMOVED SENSITIVE VALUE***",
    "mail_smtppassword": "***REMOVED SENSITIVE VALUE***",
    "mail_smtpport": "587",
    "theme": "",
    "updater.release.channel": "stable",
    "datadirectory": "***REMOVED SENSITIVE VALUE***",
    "skeletondirectory": "\/var\/nextcloud-data\/skeleton",
    "mysql.utf8mb4": true,
    "memcache.local": "\\OC\\Memcache\\APCu",
    "encryption.legacy_format_support": false,
    "encryption.key_storage_migrated": false,
    "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",
        "OC\\Preview\\PDF"
    ],
    "updater.secret": "***REMOVED SENSITIVE VALUE***"
}

Are you using external storage, if yes which one: local/smb/sftp/...

Are you using encryption:

Are you using an external user-backend, if yes which one: LDAP/ActiveDirectory/Webdav/...

Client configuration

Browser: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:84.0) Gecko/20100101 Firefox/84.0

Operating system:

Logs

Web server error log

Insert your web server log here 

Nextcloud log

Insert your Nextcloud log here

Browser log

Insert your browser log here, this could for example include:

a) The javascript console log
b) The network log
c) ...

[skjnldsv]

Can you provide a link for me to test?
Works fine for me 🤔

[szaimen]

Maybe it is this problem?
nextcloud/richdocuments#1320

[gsnendzynskigmbh]

I can confirm the issue, it seems to work with a nextcloud 20.0.5 Instance but a 20.0.6 and a 20.0.7 Instance shows me a error if I open

Not Working Link:
Shared folder contains a PDF (Nextcloud 20.0.7): https://cloud.nendzynski.de:8443/index.php/s/o49EBjHoe78GQEj

Working Link:
Direckt link to the shared file (Nextcloud 20.0.7): https://cloud.nendzynski.de:8443/index.php/s/axZmsGMPXQyiNcX

Shared folder contains a PDF (Nextcloud 20.0.5): https://home.gonline.at:4443/s/BEp93ifzebQ7Frj?

[koarlmichael]

Can confirm, since update to 20.0.6 and 20.0.7 shared folders with PDF dont work.

[jakieu]

I can confirm this, too. When logged in, I can open PDF files perfectly fine. Opening the same folder as a shared link (not logged in to nextcloud), the following error occurs:

PDF.js v2.4.456 (build: 228a591c)
Message: Invalid PDF structure.

I've updated from 20.0.4 to 20.0.7 today.

[daukus]

Can confirm that, too. Pdf files cannot be opened when are shared by a public link, in a shared folder.

[megothub]

+1
It works when you are logged in.
But, it doesn't work for public shares. Even on password protected shares

On my side Latest NC 20.0.7
Ubuntu 20.04.2

The only workaround is to disable PDF Viewer

[Hanskes]

same problem here, since update to 20.0.7