Shared file cannot be opened

[kalletabur]

Steps to reproduce

1. User uploaded file
2. Shared this file
3. Shared file cannot be opened

Expected behaviour

Shared file should be opened by another user

Actual behaviour

User desktop client gets errors like "connection closed", "operation canceled" and so on

My comments

Basically since the beginning of this sharedfilename.xlsx was uploaded into server there are DecryptionFailedException log entries (altogether 17 same entries).
User has keys (filekey and ShareKey) in
data/$user/files_encryption/keys/files/$path_to_file/OC_DEFAULT_MODULE/ folder

I found similar issue Unable to decrypt files on 8.2.2. There are suggested lots of different solutions - patching, updating, changing oc_filecache. So I'm wondering - is there one solution or should I patch or update and then hope that everything will be fixed.

Server configuration

Operating system:
Debian 8
Web server:
nginx 1.8
Database:
mysql 5.6
PHP version:
php 5.6
ownCloud version: (see ownCloud admin page)
ownCloud 8.2.2
Updated from an older ownCloud or fresh install:
ownCloud 8.1
Where did you install ownCloud from:
packages

List of activated apps:

Enabled:
  - activity: 2.1.3
  - contacts: 0.5.0.0
  - encryption: 1.1.0
  - files: 1.2.0
  - files_pdfviewer: 0.7
  - files_sharing: 0.7.0
  - files_texteditor: 2.0
  - files_trashbin: 0.7.0
  - files_versions: 1.1.0
  - files_videoviewer: 0.1.3
  - firstrunwizard: 1.1
  - gallery: 14.2.0
  - user_ldap: 0.7.1
Disabled:
  - external
  - files_external
  - notifications
  - provisioning_api
  - templateeditor
  - user_external

The content of config/config.php:

        "instanceid": "instanceid",
        "passwordsalt": "***REMOVED SENSITIVE VALUE***",
        "secret": "***REMOVED SENSITIVE VALUE***",
        "trusted_domains": [
            "owncloud.company.firm"
        ],
        "datadirectory": "\/ownclouddatadirectory\/",
        "overwrite.cli.url": "https:\/\/owncloud.company.firm",
        "dbtype": "mysql",
        "version": "8.2.2.2",
        "dbname": "ownclouddatabase",
        "dbhost": "localhost",
        "dbtableprefix": "owncloud_",
        "dbuser": "***REMOVED SENSITIVE VALUE***",
        "dbpassword": "***REMOVED SENSITIVE VALUE***",
        "installed": true,
        "ldapIgnoreNamingRules": false,
        "mail_smtpmode": "smtp",
        "mail_smtphost": "someserver.company.firm",
        "mail_smtpport": "25",
        "forcessl": true,
        "maintenance": false,
        "singleuser": false,
        "loglevel": 1,
        "memcache.local": "\\OC\\Memcache\\APCu",
        "theme": "",
        "trashbin_retention_obligation": "auto"

Are you using external storage, if yes which one: local/smb/sftp/...
no
Are you using encryption: yes/no
yes
Are you using an external user-backend, if yes which one: LDAP/ActiveDirectory/Webdav/...
LDAP

LDAP configuration (delete this part if not used)

Client configuration

Browser:
Chrome
Operating system:
Windows 7

Desktop client:
Version 2.2.4

Logs

ownCloud log (data/owncloud.log)

{"reqId":"1Q9Mb0CkXqjN3iBUmHv0",
    "remoteAddr":"10.10.10.10",
    "app":"no app in context",
    "message":"Encryption module \"Default encryption module\" is not able to read \/u.username\/files\sharedfilename.xlsx",
    "level":2,
    "time":"2016-10-17T09:47:01+02:00"
    }
{"reqId":"1Q9Mb0CkXqjN3iBUmHv0",
    "remoteAddr":"10.10.10.10",
    "app":"no app in context",
    "message":"Exception: {\"Exception\":\"OC\\\\Encryption\\\\Exceptions\\\\DecryptionFailedException\",
        "Message\":\"Encryption module \\\"Default encryption module\\\" is not able to read \\\/u.username\\\/files\\\/files\sharedfilename.xlsx\",
        "Code\":0,\"Trace\":
            #0 \\\/var\\\/www\\\/owncloud\\\/lib\\\/private\\\/files\\\/storage\\\/wrapper\\\/encryption.php(289): OCA\\\\Encryption\\\\Crypto\\\\Encryption->isReadable('\\\/u.username\\\/fi...', 'u.username2')
            #1 \\\/var\\\/www\\\/owncloud\\\/lib\\\/private\\\/files\\\/storage\\\/wrapper\\\/wrapper.php(161): OC\\\\Files\\\\Storage\\\\Wrapper\\\\Encryption->isReadable('files\\\/sharedfilename...')
            #2 \\\/var\\\/www\\\/owncloud\\\/apps\\\/files_sharing\\\/lib\\\/sharedstorage.php(256): OC\\\\Files\\\\Storage\\\\Wrapper\\\\Wrapper->isReadable('files\\\/sharedfilename...')
            #3 \\\/var\\\/www\\\/owncloud\\\/lib\\\/private\\\/files\\\/storage\\\/wrapper\\\/wrapper.php(161): OC\\\\Files\\\\Storage\\\\Shared->isReadable('')
            #4 \\\/var\\\/www\\\/owncloud\\\/lib\\\/private\\\/files\\\/storage\\\/wrapper\\\/availability.php(170): OC\\\\Files\\\\Storage\\\\Wrapper\\\\Wrapper->isReadable('')
            #5 \\\/var\\\/www\\\/owncloud\\\/lib\\\/private\\\/files\\\/storage\\\/wrapper\\\/wrapper.php(161): OC\\\\Files\\\\Storage\\\\Wrapper\\\\Availability->isReadable('')
            #6 \\\/var\\\/www\\\/owncloud\\\/lib\\\/private\\\/files\\\/view.php(1023): OC\\\\Files\\\\Storage\\\\Wrapper\\\\Wrapper->isReadable('')
            #7 \\\/var\\\/www\\\/owncloud\\\/lib\\\/private\\\/files\\\/view.php(399): OC\\\\Files\\\\View->basicOperation('isReadable', '\\\/\\\//sharedfilename...')
            #8 \\\/var\\\/www\\\/owncloud\\\/lib\\\/private\\\/files\\\/filesystem.php(672): OC\\\\Files\\\\View->isReadable('\\\/\\\/sharedfilename...')
            #9 \\\/var\\\/www\\\/owncloud\\\/lib\\\/private\\\/files.php(164): OC\\\\Files\\\\Filesystem::isReadable('\\\/\\\/sharedfilename...')
            #10 \\\/var\\\/www\\\/owncloud\\\/lib\\\/private\\\/files.php(90): OC_Files::getSingleFile(Object(OC\\\\Files\\\\View), '\\\/', '/sharedfilename...', false)
            #11 \\\/var\\\/www\\\/owncloud\\\/apps\\\/files\\\/ajax\\\/download.php(53): OC_Files::get('\\\/', Array, false)
            #12 \\\/var\\\/www\\\/owncloud\\\/lib\\\/private\\\/route\\\/route.php(154) : runtime-created function(1): require_once('\\\/var\\\/www\\\/ownclo...')
            #13 [internal function]: __lambda_func(Array)
            #14 \\\/var\\\/www\\\/owncloud\\\/lib\\\/private\\\/route\\\/router.php(291): call_user_func('\\\\x00lambda_10904', Array)
            #15 \\\/var\\\/www\\\/owncloud\\\/lib\\\/base.php(851): OC\\\\Route\\\\Router->match('\\\/apps\\\/files\\\/aja...')
            #16 \\\/var\\\/www\\\/owncloud\\\/index.php(39): OC::handleRequest()
            #17 {main}\",
        "File\":\"\\\/var\\\/www\\\/owncloud\\\/apps\\\/encryption\\\/lib\\\/crypto\\\/encryption.php\",
        "Line\":431}",
    "level":3,
    "time":"2016-10-17T09:47:01+02:00"
    }

[ghost]

@kalletabur

ownCloud 8.2.2

From the issue template you have filled out:

Before reporting any issues please make sure that you're using the latest available version for your major branch (e.g. 9.0.x), see https://owncloud.org/changelog/

This avoids that you're creating issues for problems which might be already fixed in newer versions of ownCloud. Especially when using such outdated versions like 8.2.2 where 8.2.8 is current (https://owncloud.org/changelog/#latest8.2).

[kalletabur]

.. update and then hope that everything will be fixed

So because I haven't updated there is no way to get support to solve my problem?

[ghost]

There won't be any support in here in general. This is a bugtracker for ownCloud, support is given at https://central.owncloud.org/

And before any bugs are reported, a stable release needs to be used. If that is not followed you're mostly wasting the time of the people in here as the bug might be already fixed as already explained above.

[kalletabur]

Ok.
Sorry to posting wrong place.
Thanks

[ghost]

But before asking for support at central you should really update to 8.2.8 first. If you scroll through the changelog of 8.2.3-8.2.8 you will notice a lots of bugfixes for the encryption topic.

[lock]

This thread has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.