Problems syncing folders with same name

[AsierraDEV]

Hi everyone, this is my first time in github. First of all thanks for your efforts, Nextcloud is a great opensource project and his community and developers are doing an excellent job.

Steps to reproduce

1. Create folder in capital letters via web
2. Create folder, same name, lowercase, via web
3. Sync with Windows cliente

Expected behaviour

Web interface should not let you create folders with same name, even if its a Linux server

Actual behaviour

It lets you, then windows clients fails to sync

Server configuration detail

Operating system: Linux 3.10.0-693.el7.x86_64 #1 SMP Tue Aug 22 21:09:27 UTC 2017 x86_64

Webserver: Apache/2.4.6 (CentOS) OpenSSL/1.0.2k-fips PHP/7.0.29 (apache2handler)

Database: pgsql PostgreSQL 9.3.6 on x86_64-unknown-linux-gnu, compiled by gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-11), 64-bit

PHP version: 7.0.29
Modules loaded: Core, date, libxml, openssl, pcre, zlib, filter, hash, Reflection, SPL, session, standard, apache2handler, bz2, calendar, ctype, curl, dom, mbstring, fileinfo, ftp, gd, gettext, gmp, iconv, json, ldap, exif, mcrypt, PDO, pdo_pgsql, pdo_sqlite, pgsql, Phar, posix, shmop, SimpleXML, sockets, sqlite3, sysvmsg, sysvsem, sysvshm, tokenizer, xml, wddx, xmlreader, xmlwriter, xsl, zip, Zend OPcache

Nextcloud version: 13.0.2 - 13.0.2.1

Updated from an older Nextcloud/ownCloud or fresh install: Fresh install

Where did you install Nextcloud from: Downloaded tar file

List of activated apps

Enabled:
 - activity: 2.6.1
 - admin_audit: 1.3.0
 - bruteforcesettings: 1.0.3
 - comments: 1.3.0
 - dav: 1.4.6
 - dicomviewer: 0.0.6
 - federatedfilesharing: 1.3.1
 - files: 1.8.0
 - files_pdfviewer: 1.2.1
 - files_sharing: 1.5.0
 - files_texteditor: 2.5.1
 - files_trashbin: 1.3.0
 - files_versions: 1.6.0
 - files_videoplayer: 1.2.0
 - firstrunwizard: 2.2.1
 - gallery: 18.0.0
 - issuetemplate: 0.3.0
 - logreader: 2.0.0
 - lookup_server_connector: 1.1.0
 - nextcloud_announcements: 1.2.0
 - notifications: 2.1.2
 - oauth2: 1.1.0
 - password_policy: 1.3.0
 - provisioning_api: 1.3.0
 - serverinfo: 1.3.0
 - sharebymail: 1.3.0
 - spreed: 3.2.0
 - survey_client: 1.1.0
 - systemtags: 1.3.0
 - theming: 1.4.1
 - twofactor_backupcodes: 1.2.3
 - updatenotification: 1.3.0
 - user_ldap: 1.3.1
 - workflowengine: 1.3.0
Disabled:
 - encryption
 - federation
 - files_external
 - user_external

Configuration (config/config.php)

{
    "instanceid": "***REMOVED SENSITIVE VALUE***",
    "passwordsalt": "***REMOVED SENSITIVE VALUE***",
    "secret": "***REMOVED SENSITIVE VALUE***",
    "trusted_domains": [
        "nextcloud.intranet.net"
    ],
    "datadirectory": "***REMOVED SENSITIVE VALUE***",
    "overwrite.cli.url": "https:\/\/nextcloud.intranet.net\/nextcloud",
    "dbtype": "pgsql",
    "version": "13.0.2.1",
    "dbname": "***REMOVED SENSITIVE VALUE***",
    "dbhost": "***REMOVED SENSITIVE VALUE***",
    "dbport": "",
    "dbtableprefix": "oc_",
    "dbuser": "***REMOVED SENSITIVE VALUE***",
    "dbpassword": "***REMOVED SENSITIVE VALUE***",
    "installed": true,
    "mail_smtpmode": "smtp",
    "mail_smtpauthtype": "PLAIN",
    "mail_from_address": "***REMOVED SENSITIVE VALUE***",
    "mail_domain": "***REMOVED SENSITIVE VALUE***",
    "mail_smtphost": "***REMOVED SENSITIVE VALUE***",
    "mail_smtpport": "25",
    "ldapIgnoreNamingRules": false,
    "ldapProviderFactory": "\\OCA\\User_LDAP\\LDAPProviderFactory",
    "ldapcleanupinterval": "30",
    "updater.release.channel": "stable"
}

Are you using external storage, if yes which one: local

Are you using encryption: no

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

Client configuration

Browser: Mozilla/5.0 (Windows NT 10.0; WOW64; Trident/7.0; rv:11.0) like Gecko

Operating system: Windows 10

[MorrisJobke]

This is more a client issue. Sadly there is no good way to handle this. Nextcloud server is case sensitive because it wants to support as many as possible use cases.

See also owncloud/client#1348 for a longer discussion and maybe talk with the client devs in the desktop repo about this issue: https://github.com/nextcloud/desktop