Implementation of single Sign-on---ucenter

First, let's get to the next Ucenter login step

1, the user login discuz, through the logging.php file function Uc_user_login to post data verification, that is, username and password to verify.
2. If the validation succeeds, the function uc_user_synlogin in the client.php file under Uc_client will be called, in which uc_api_post (' user ', ' synlogin ', Array (' uid ' = > $uid)).
3. The function then passes the data to the Ucenter index.php, index.php accepts the transmitted data and obtains the value of the model User,action as Synlogin.
4. Then Ucenter's index.php calls the Onsynlogin method in the User.php class in the control directory, which, through the Foreach Loop, notifies the UC app list in a JavaScript-enabled app to log on synchronously, which is passed to each uc.php some data under the API in the directory.
5, uc.php receive notification and processing get over the data, and in the function Synlogin (in uc.php) through the function _authcode encrypt the data (by default, Uc_key as the key), with the function _setcookie set the cookie.
6, each application uses the corresponding key to decode the cookie set above, to obtain the user ID and other data; This value is used to determine whether the user has been logged in through other applications, allowing users to log on automatically.

Application logging.php------>uc_client in client.php------>ucenter------> Applications api/uc.php

In fact, ucenter implementation of the principle of synchronous landing is a cookie, a successful application after landing, to Ucenter pass data, let Ucenter notify other applications also set cookies, so that users access to other applications through the set of cookies to achieve automatic landing. Understand the principle of ucenter synchronization, and then encountered the inability to log in, or develop some interface with the Ucenter will be much easier.

Approximate steps first we need to install Ucenter and then copy the Uc_client folder into our own project and then configure several files

client.php equivalent to a library of functions

uc.php equivalent to callback file

There is also a config.inc.php is a configuration file

When you have 2 apps that are set up for sync login when you log in to an app and then execute

Copy CodeThe code is as follows:
Include './config.inc.php ';
Include './uc_client/client.php ';
$usernames = "Feiye";
$passwords = "789123";
List ($uid, $username, $password, $email) = Uc_user_login ($usernames, $passwords);
if ($uid > 0) {
Setcookie ("username", $username, Time () +intval (24*3600));
echo Uc_user_synlogin ($UID);
Echo ' login success ';
} elseif ($uid = =-1) {
Echo ' user does not exist, or is deleted ';
} elseif ($uid = =-2) {
echo ' wrong password ';
} else {
echo ' undefined ';
}

Uc_user_synlogin () This function represents a synchronous login to all other functions that enable simultaneous login. UC itself will be in the background to all the applications that enable synchronization to loop through and then output on the page

Copy CodeThe code is as follows:
<script type= "Text/javascript" src= "http://127.0.0.70/api/uc.php?time=1374540644&code=14fdIufn% 2b2ywkqln9p07fehofzvdjupvgbgarpn7r0djmbewcb23vkwo1uaeyblq3hzhtokozrnqu7ngi09jzs684drfcbldispkhk6p50mftbra3vp4yiswhrpml1dx O5AJB7CVZ9F8EI%2BKDFFQ0E0RDYERKUZ8GOEHHG "reload=" 1 "></script>

Copy CodeThe code is as follows:
<script type= "Text/javascript" src= "http://127.0.0.71/api/uc.php?time=1374540644&code= 07a91g8sepqwwfa3c1un1sphc4v6yuer1jfbvtqmk%2bqzmtkjwoz8x% 2b8rwgnmkdhlxe9xxvqqakdjn26ck6bma19zploisw4wunnxhab9xxlt2vexuyf03mnehac% 2BUDJWB58SBXGCYUPM4BMZDM3Q92OBSP0KK2QCD12FQG "reload=" 1 "></script>

Similar to this kind of JS code is sent to each application to open the sync login and then each open the sync login application callback file uc.php after the acceptance will be decrypted and decrypted after you can actually write your own code this uc.php callback file code does not have to follow their format to write you can also self- Write your own code, for example, I'm doing a synchronous landing based on the session.

Copy CodeThe code is as follows:
function Synlogin ($get, $post) {
$uid = $get [' uid '];
$username = $get [' username '];
if (! Api_synlogin) {
return Api_return_forbidden;
}
Header (' p3p:cp= ' CURa ADMa DEVa Psao psdo our BUS UNI PUR INT DEM STA PRE COM NAV OTC NOI DSP COR "');
Setcookie (' Gwyy ', $username, Time () +3600, '/', ' 127.0.0.71 ');
_setcookie (' Example_auth ', _authcode ($uid. ") \ t ". $username, ' ENCODE '));

$_session[' username '] = $username;
$_session[' uid '] = $uid;
}

function Synlogout ($get, $post) {
if (! Api_synlogout) {
return Api_return_forbidden;
}
Note Sync log out API interface
Header (' p3p:cp= ' CURa ADMa DEVa Psao psdo our BUS UNI PUR INT DEM STA PRE COM NAV OTC NOI DSP COR "');
_setcookie (' Example_auth ', ',-86400 * 365);
unset ($_session[' username ');
unset ($_session[' uid ');
Session_destroy ();
}

This will automatically log on when the user refreshes another app page.

Note If you add an app in UC and the communication is not successful then the reason is simply not finding you http://xxxx/api/uc.php this file as long as there is this file in that communication will certainly succeed

In fact, the principle of UC is very simple is an application login and then the background polling sent to the sync login application callback file callback file received the user ID after generating a cookie or session and then into the login mode.

Implementation of single Sign-on---ucenter