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				PPVSWA
	Public PPTP VPN Server Web Authorize system.    English Version
							 v0.6+	6.14.2011
This program is a GPLv3 Free Software	copyleft [email protected]
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This Program is for PPTP VPN user management，based on PHP+MySQL，will need WebServer to operate.
'config.php'Is the config file ,you must specify all variables listed inside.
'install.php' initialise the database.
This program collect registrations from 'form.php'
All information collected by 'form.php' will be sent to 'handler.php',which writes all information into MySQL database.
'admin.php' Is the main page for Administrations.
All actions taken from 'admin.php' will be sent to 'auth.php',which will apply all the changes.
'mailmaker.php'Is used for email editing。
'mailsender.php' Sends the email from 'mailmaker.php'.
'index.php' calls 'form.php'
'functions.php' is the function base, all functions were difiened here.
'selfservice.php' is for user self-activation and account status checking.
'selfauth.php' take actions to apply self-activation.
'checkstate.php' does the checking for users.
'viewkey.php' is for the administrator viewing unused activation keys.
'buildkey.php' is for key building, 5 keys at a time.
**'chap-secrets' is the user secret file of PPTP VPN server, which usually located at /etc/ppp/;  
**'chap-secrets.old' is a extra file which will be added at the end of chap-secrets, if you have a chap-secrets file existed before using this program ,rename it as 'chap-secrets.old' or specify it in 'config.php'
**'messages' is a system log file which usually located at /var/log/
**'sublog' is a file created by PPVSWA for log file analyzing.
**'analyzedlog' is the backed up system log file.
Note, sending email needs support from your server. 


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Install Process    Note: Need PHP 5.2+ otherwise program will not work.
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1.Unzip all files into your web dictionary
2.edit 'config.php',specify all variables.
3.open 'install.php' in your browser.
4.remove 'install.php'
5.If /etc/ppp/chap-secrets already exists，rename it as 'chap-secrets.old'                 // mv /etc/ppp/chap-secrets /etc/ppp/chap-secrets.old 
6.Change the privileges of the 'chap-secrets' into rw-rw--w-(662)                          // chmod +w /etc/ppp/chap-secrets 
7.Change the privileges of the 'sublog' into rw-rw-rw-(666)                                // chmod +rw ./sublog 
8.Change the privileges of the 'analyzedlog' into rw-rw-rw-(666)  			   // chmod +rw ./analyzedlog
8.Install compelete, peers can access 'index.php' for registration ,administrators access 'admin.php' for user management.



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Release note
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v0.6+
Dropped Jquery . Improved analyzing algorithm, preventing server overload. Several bugfix.


v0.6
Used JQuery for ajax. Specified IPs for peers, 254 peers maximum. Made functions analyizing system log file, fetching peer's total usetime and bandwith usage information. Fixed a few bugs.
note: deletion of system log file will distroy everything.

v0.5
Made AJAX for Admin page. No need to refresh all the time. Used md5(md5(x)) for password encodeing, improved safety.


v0.4

Translated everything into English,fixing the encoding problem. Improved safety, no more possibility of SQL injection.

v0.3

Nearly everything got functionlised. Added new feature 'Activation Key','User Self Activation And Account Checking'.

v0.2

Integrated all features，Fixed bug (pptp vpn server name not specially defined)，made full online management（authorize/deauthorize），added new feature 'email to all peers','fuse old chap-secrets file into the new one'，'admin password'，  Improved safety，Slightly improved UI。