Getting ownCloud Insights

Logging (and debugging) all platforms

Michael Stingl

Customer Support and Branding Services

GitHub: @michaelstingl
Twitter: @michaelstingl
elsewhere: …

Which logs could help

  • owncloud.log
  • webserver access/error log
  • analyzing logs
  • desktop client logs
  • logs from Android *-debug.apk
  • Android Studio debugger
  • iOS: crash logs
  • iOS: Xcode device console
  • capturing HTTP(S) requests with mitmproxy
  • browser debugging
  • smashbox
  • Xdebug and PhpStorm

owncloud.log

  • default: owncloud/data/owncloud.log
  • download from Admin page
  • configure log levels

Logging Configuration


"log_type" => "owncloud",
"logfile" => "owncloud.log",
"loglevel" => "3",
"logdateformat" => "F d, Y H:i:s",

syslog


"log_type" => "syslog",
"logfile" => "",
"loglevel" => "3",

Conditional Logging Level Increase


'log.condition' => [
       'shared_secret' => '57b58edb6637fe3059b3595cf9c41b9',
       'users' => ['sample-user'],
       'apps' => ['files'],
],

Webserver Logs

ownCloud talks WebDAV


172.20.10.2 - admin [11/Sep/2016:09:28:24 +0000] "GET /remote.php/webdav/Hacker-Songs/mark_wheadon-just_one_more_hack.mp3 HTTP/1.1" 200 2796250 "-" "Mozilla/5.0 (Macintosh) mirall/2.2.3 (build 3601)"
172.20.10.2 - admin [11/Sep/2016:09:28:24 +0000] "GET /remote.php/webdav/Hacker-Songs/mc_plus_plus-alice_and_bob.mp3 HTTP/1.1" 200 3264837 "-" "Mozilla/5.0 (Macintosh) mirall/2.2.3 (build 3601)"
172.20.10.2 - admin [11/Sep/2016:09:28:24 +0000] "GET /remote.php/webdav/Hacker-Songs/model_view_controller_song.mp3 HTTP/1.1" 200 6941701 "-" "Mozilla/5.0 (Macintosh) mirall/2.2.3 (build 3601)"

Analyzing Logs

ELK Stack (Elasticsearch, Logstash, and Kibana)

Desktop Client Logs

Press "F12"

Desktop Client Log Options

The ownCloud client enables you to save log files directly to a predefined file or directory.


--logfile <file>
				    

--logdir <dir>
--logexpire <hours>

owncloud --logdir /tmp/owncloud_logs --logexpire 48 `

Android *-debug.apk (ownBrander)

Every ownBrander build has a twin with debugging enabled.

Android Studio Debugger

  1. Application needs to be "debuggable"
  2. USB debugging enabled on the dice
  3. Windos: install a USB driver…

iOS: crash logs

  • Xcode's Window menu > Devices, and select the iOS device on the side bar
  • Synced with iTunes
  • Xcode through the App Store (user can disable)

iOS: Xcode device console

Xcode's Window menu > Devices, and select the iOS device on the side bar

Capturing HTTP(S) requests with mitmproxy

Flow list: save with "w", load with "L"

Capturing HTTP(S) requests with mitmproxy

Flow view

Browser debugging

  • Firefox Developer Tools
  • Chrome, Safari: Web Inspector
  • Mobile: Connect desktop Safari with mobile Safari

Smashbox

Framework for end-to-end testing the core storage functionality of owncloud-based service installation.

https://github.com/cernbox/smashbox.

Cons

  • Not easy to install
  • Many data

Xdebug - Debugger and Profiler Tool for PHP

PHP extension which provides debugging and profiling capabilities.

http://www.xdebug.org/.

PhpStorm IDE

Setting the magic cookie to get Xdebug information to PhpStorm:

https://www.jetbrains.com/phpstorm/marklets/.

Thank You!

This presentation is available on GitHub:

View: https://michaelstingl.github.io/owncloudconf-logs/

Fork: https://github.com/michaelstingl/owncloudconf-logs

Run local: 


						php -S localhost:8080