This application is distributed WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU AFFERO GENERAL PUBLIC LICENSE for more details.

One Time Password Backend can create TOTP and HOTP and generate QrCode
Based on library multiOTP http://www.multiotp.net/ develop by "SysCo systèmes de communication" (thanks)
test with "Google Authenticator" and "android Token"
Can works with Yubikey see doc here : http://www.sj-vs.net/two-factor-authentication-for-owncloud-using-one-time-passwords-otp-from-yubikey/
Administrator interface to manage users OTP
require Owncloud >= 7 

if you want help to make bug fix, enhancement or translation your welcome. 
Just fork the github project and submit your pull request
GIT : https://github.com/loki36/user-otp

Version 2.5

Installation:
Upload user_otp directory under the 'apps' directory of your ownCloud.
user_otp folder should have read write permission for the web server user (under debian/ubutnu : chown -R www-data:www-data user_otp)
Navigate to the 'Apps' page in Admin.
Click on 'user_otp' in the application list. Then click the 'Enable' button.

Usage:
- Navigate to the 'Admin' page to set the server encryption key;
- Click 'Save';
- Navigate to 'Personal' page to create Your OTP

- keep an admin user working without otp in case of a lost of otp seed
  if not you can delete otp user config in the db with the query
  "delete from *PREFIX*user_otp where `user` = 'YOURUSERLOGIN'
  replace *PREFIX* by owncloud table prefix 'oc_' by default

- Use the navigation entry "OTP users" (on left bar, with admin account) 
  to manage user's OTP
- if you want to be able to send email to users with OTP config 
  your server must be correctly configure : 
  http://doc.owncloud.org/server/6.0/admin_manual/configuration/configuration_mail.html
 
  
Todo:
- improve Admin interface to manage otp user information (mass provisionning / ...)
- add user rescue otp code as lost password process

Changelog:
  V2.5 2014-11-01:
    bug fix ownCloud 7 compatible? #70
    bug fix / enhancement Not working properly with encryption enabled #66
    bug fix Timezone errors #64 
    bug fix Cannot login with two-factor authentication #69
    bug fix / enhancement Add support for News API #74  
    
  V2.4 2014-04-29: (2.4.1)
    bug fix DB:MySQL ERROR: Unable to write the changes in the file #61
  
  V2.4 2014-04-27:
	enhancement stop browsers trying to "remember the OTP but only the "real" password #56
	enhancement change on admin page HOTP params #41
	enhancement it would be nice to be able to set an own "accuracy" #57
	update multiOTP class from 4.0.6 to 4.2.4.2 #58
	bug fix no OTP field #53
	bug fix css #55
	bug fix text error "passorwd" #54	
  
  V2.3 2014-04-14:
    enhancement enter regular password and OTP within same field #44
    enhancement admin option for user can't disable otp option (only changed it) #48
    bug fix lost password link not working when otp is enable #47
    bug fix user (including admin) can't change password with OTP+password required option  # 50

  V2.2 2014-02-28:
    enhancement page liste users with otp for admin #40
    enhancement Small changes to make this compatible with Yubikey (HOTP) #33 (thanks to Bas)
    bug fix user-otp prevents creation of new ownCloud users #36
    bug fix setting up user token seed fails on OC6 with PostgreSQL 9.1 #38 (thanks to rainforest1155)
    bug fix two factor auth for user not have a two factor auth #39
    bug fix Password-field behaviour for "Two Factor Authendication"is different #6  
    bug fix Broken path to password.svg - variable owncloud root path #32  

  V2.1 2014-02-02:
    bug fix SQL Error using Postgresql as DB #25
    bug fix Password not change! #27
    owncloud 6 bug fix #28
    remove windows binary from the 3rd party
    bug fix personal setting error #29

  V2 :
    lot of bug fix
    update multiOTP lib (4.0.4)
    store otp user information in owncloud DB
    should work with all user backend!
    add two factor authenticator options