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External User Support with IMAP not working #10594

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External User Support with IMAP not working#10594
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bug
@tiagoefreitas

Description

@tiagoefreitas
tiagoefreitas
opened on Aug 8, 2018

Steps to reproduce

  1. Activate External Users App
  2. Configure IMAP Authentication:
    cat /var/www/nextcloud/config/imapauth.config.php :
array ( 0 => array ( "class" => "OC_User_IMAP", "arguments" => array ( 0 => '{imap.server.com:993/imap/ssl/readonly}' ), ), ), ); ?>
  1. Try to login

Expected behaviour

Logs in

Actual behaviour

Nothing happens, this in log :

Error PHP Cannot modify header information - headers already sent by (output started at /var/www/nextcloud/config/imapauth.config.php:13) at /var/www/nextcloud/lib/private/Session/CryptoWrapper.php#89 2018-08-08T19:00:04+0100
Error PHP Cannot modify header information - headers already sent by (output started at /var/www/nextcloud/config/imapauth.config.php:13) at /var/www/nextcloud/lib/base.php#520 2018-08-08T19:00:03+0100
Error PHP Cannot modify header information - headers already sent by (output started at /var/www/nextcloud/config/imapauth.config.php:13) at /var/www/nextcloud/lib/base.php#520 2018-08-08T19:00:03+0100
Error PHP Cannot modify header information - headers already sent by (output started at /var/www/nextcloud/config/imapauth.config.php:13) at /var/www/nextcloud/lib/private/legacy/response.php#271 2018-08-08T19:00:03+0100

Server configuration detail

Operating system: Linux 4.15.0-30-generic #32-Ubuntu SMP Thu Jul 26 17:42:43 UTC 2018 x86_64

Webserver: Apache/2.4.34 (Ubuntu) (fpm-fcgi)

Database: pgsql PostgreSQL 10.4 (Ubuntu 10.4-0ubuntu0.18.04) on x86_64-pc-linux-gnu, compiled by gcc (Ubuntu 7.3.0-16ubuntu3) 7.3.0, 64-bit

PHP version: 7.2.7-0ubuntu0.18.04.2
Modules loaded: Core, date, libxml, openssl, pcre, zlib, filter, hash, Reflection, SPL, sodium, session, standard, cgi-fcgi, PDO, xml, bz2, calendar, ctype, curl, dom, mbstring, fileinfo, ftp, gd, gettext, gmp, iconv, igbinary, imagick, imap, intl, json, ldap, exif, pdo_pgsql, pgsql, Phar, posix, readline, redis, shmop, SimpleXML, smbclient, soap, sockets, sysvmsg, sysvsem, sysvshm, tokenizer, wddx, xmlreader, xmlwriter, xsl, zip, libsmbclient, Zend OPcache

Nextcloud version: 13.0.5 - 13.0.5.2

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

Where did you install Nextcloud from: official vm

Signing status

Array

List of activated apps 
Enabled:
 - activity: 2.6.1
 - caniupdate: 0.1.3
 - comments: 1.3.0
 - dav: 1.4.7
 - encryption: 2.0.0
 - federatedfilesharing: 1.3.1
 - federation: 1.3.0
 - 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: 1.1.1
 - onlyoffice: 1.3.0
 - password_policy: 1.3.0
 - provisioning_api: 1.3.0
 - registration: 0.4.3
 - serverinfo: 1.3.0
 - sharebymail: 1.3.0
 - spreed: 3.2.5
 - survey_client: 1.1.0
 - systemtags: 1.3.0
 - theming: 1.4.5
 - twofactor_backupcodes: 1.2.3
 - twofactor_totp: 1.4.1
 - updatenotification: 1.3.0
 - user_external: 0.4
 - user_ldap: 1.3.1
 - workflowengine: 1.3.0
Disabled:
 - admin_audit
 - files_external
 - user_saml
Configuration (config/config.php) 
{
    "passwordsalt": "***REMOVED SENSITIVE VALUE***",
    "secret": "***REMOVED SENSITIVE VALUE***",
    "trusted_domains": [
        "localhost",
        "77.235.58.186",
        "XXX",
        "XXX"
    ],
    "datadirectory": "***REMOVED SENSITIVE VALUE***",
    "overwrite.cli.url": "XXX",
    "dbtype": "pgsql",
    "version": "13.0.5.2",
    "dbname": "***REMOVED SENSITIVE VALUE***",
    "dbhost": "***REMOVED SENSITIVE VALUE***",
    "dbport": "",
    "dbtableprefix": "oc_",
    "dbuser": "***REMOVED SENSITIVE VALUE***",
    "dbpassword": "***REMOVED SENSITIVE VALUE***",
    "installed": true,
    "instanceid": "***REMOVED SENSITIVE VALUE***",
    "mail_smtpmode": "smtp",
    "log_rotate_size": "10485760",
    "memcache.local": "\\OC\\Memcache\\Redis",
    "filelocking.enabled": true,
    "memcache.distributed": "\\OC\\Memcache\\Redis",
    "memcache.locking": "\\OC\\Memcache\\Redis",
    "redis": {
        "host": "***REMOVED SENSITIVE VALUE***",
        "port": 0,
        "timeout": 0.5,
        "dbindex": 0,
        "password": "***REMOVED SENSITIVE VALUE***"
    },
    "htaccess.RewriteBase": "\/",
    "loglevel": "2",
    "log_type": "file",
    "logfile": "\/mnt\/ncdata\/nextcloud.log",
    "logtimezone": "Europe\/Lisbon",
    "maintenance": false,
    "mail_smtpauthtype": "LOGIN",
    "mail_smtpauth": 1,
    "mail_from_address": "***REMOVED SENSITIVE VALUE***",
    "mail_domain": "***REMOVED SENSITIVE VALUE***",
    "mail_smtphost": "***REMOVED SENSITIVE VALUE***",
    "mail_smtpname": "***REMOVED SENSITIVE VALUE***",
    "mail_smtppassword": "***REMOVED SENSITIVE VALUE***",
    "ldapIgnoreNamingRules": false,
    "ldapProviderFactory": "\\OCA\\User_LDAP\\LDAPProviderFactory"
}

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

Are you using encryption: yes

Are you using an external user-backend, if yes which one: IMAP

Client configuration

Browser: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36

Operating system:

Logs

Webserver log 
Insert your webserver log here
Nextcloud log {"reqId":"bdX2KG28DwqRiBf6PrT0","level":3,"time":"2018-08-08T19:30:01+01:00","remoteAddr":"","user":"--","app":"PHP","method":"--","url":"--","message":"Cannot modify header information - headers already sent by (output started at \/var\/www\/nextcloud\/config\/imapauth.config.php:13) at \/var\/www\/nextcloud\/lib\/private\/legacy\/response.php#271","userAgent":"--","version":"13.0.5.2"} {"reqId":"bdX2KG28DwqRiBf6PrT0","level":3,"time":"2018-08-08T19:30:01+01:00","remoteAddr":"","user":"--","app":"PHP","method":"--","url":"--","message":"Cannot modify header information - headers already sent by (output started at \/var\/www\/nextcloud\/config\/imapauth.config.php:13) at \/var\/www\/nextcloud\/lib\/base.php#520","userAgent":"--","version":"13.0.5.2"} {"reqId":"bdX2KG28DwqRiBf6PrT0","level":3,"time":"2018-08-08T19:30:01+01:00","remoteAddr":"","user":"--","app":"PHP","method":"--","url":"--","message":"Cannot modify header information - headers already sent by (output started at \/var\/www\/nextcloud\/config\/imapauth.config.php:13) at \/var\/www\/nextcloud\/lib\/base.php#520","userAgent":"--","version":"13.0.5.2"} {"reqId":"bdX2KG28DwqRiBf6PrT0","level":3,"time":"2018-08-08T19:30:02+01:00","remoteAddr":"","user":"--","app":"PHP","method":"--","url":"--","message":"Cannot modify header information - headers already sent by (output started at \/var\/www\/nextcloud\/config\/imapauth.config.php:13) at \/var\/www\/nextcloud\/lib\/private\/Session\/CryptoWrapper.php#89","userAgent":"--","version":"13.0.5.2"}
Browser log

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