[Problème] Appliquer un plugin sur une partie du site seulement

[Pamp]

Bonjour !

Je rencontre un problème avec un plugin : Facebook-Twitter-Google+1 (http://extensions.joomla.org/extensi...ti-share/18072).

Celui-ci permet la mise en place entre autres d'un bouton "J'aime", requérant l'appel à une classe php : FacebookApiException.

En parallèle, j'utilise JomSocial et ai activé la connexion par Facebook, qui nécessite elle aussi une classe php FacebookApiException, mais d'un autre fichier.

Et les spécialistes voient poindre le problème ; Quand je charge la page de connexion, où il est donc possible de se connecter par Facebook, et que le plugin est en marche... SURPRISE :
Fatal error: Cannot redeclare class FacebookApiException in [Emplacement fichier]/base_facebook.php on line 107
Ceci est somme toute logique : les deux mêmes classes sont appelées...

Je souhaiterais savoir, avant de toucher à du code, qui est le code officiel de Facebook, s'il était possible d'activer le plugin seulement sur une partie du site. En effet, celui-ci m'est d'aucune utilité sur la page de connexion, puisqu'aucun article pouvant être partagé sur les réseaux sociaux n'est présent...

Merci !

Pour info, voici une partie du code du fichier incriminé :

<?php
/**
 * Copyright 2011 Facebook, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may
 * not use this file except in compliance with the License. You may obtain
 * a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations
 * under the License.
 */

if (!function_exists('curl_init')) {
  throw new Exception('Facebook needs the CURL PHP extension.');
}
if (!function_exists('json_decode')) {
  throw new Exception('Facebook needs the JSON PHP extension.');
}

/**
 * Thrown when an API call returns an exception.
 *
 * @author Naitik Shah <naitik@facebook.com>
 */
class FacebookApiException extends Exception
{
  /**
   * The result from the API server that represents the exception information.
   */
  protected $result;

  /**
   * Make a new API Exception with the given result.
   *
   * @param array $result The result from the API server
   */
  public function __construct($result) {
    $this->result = $result;

    $code = isset($result['error_code']) ? $result['error_code'] : 0;

    if (isset($result['error_description'])) {
      // OAuth 2.0 Draft 10 style
      $msg = $result['error_description'];
    } else if (isset($result['error']) && is_array($result['error'])) {
      // OAuth 2.0 Draft 00 style
      $msg = $result['error']['message'];
    } else if (isset($result['error_msg'])) {
      // Rest server style
      $msg = $result['error_msg'];
    } else {
      $msg = 'Unknown Error. Check getResult()';
    }

    parent::__construct($msg, $code);
  }

  /**
   * Return the associated result object returned by the API server.
   *
   * @return array The result from the API server
   */
  public function getResult() {
    return $this->result;
  }

  /**
   * Returns the associated type for the error. This will default to
   * 'Exception' when a type is not available.
   *
   * @return string
   */
  public function getType() {
    if (isset($this->result['error'])) {
      $error = $this->result['error'];
      if (is_string($error)) {
        // OAuth 2.0 Draft 10 style
        return $error;
      } else if (is_array($error)) {
        // OAuth 2.0 Draft 00 style
        if (isset($error['type'])) {
          return $error['type'];
        }
      }
    }

    return 'Exception';
  }

  /**
   * To make debugging easier.
   *
   * @return string The string representation of the error
   */
  public function __toString() {
    $str = $this->getType() . ': ';
    if ($this->code != 0) {
      $str .= $this->code . ': ';
    }
    return $str . $this->message;
  }
}

/**
 * Provides access to the Facebook Platform.  This class provides
 * a majority of the functionality needed, but the class is abstract
 * because it is designed to be sub-classed.  The subclass must
 * implement the four abstract methods listed at the bottom of
 * the file.
 *
 * @author Naitik Shah <naitik@facebook.com>
 */
abstract class BaseFacebook
{
  /**
   * Version.
   */
  const VERSION = '3.1.1';

  /**
   * Default options for curl.
   */
  public static $CURL_OPTS = array(
    CURLOPT_CONNECTTIMEOUT => 10,
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_TIMEOUT        => 60,
    CURLOPT_USERAGENT      => 'facebook-php-3.1',
  );

  /**
   * List of query parameters that get automatically dropped when rebuilding
   * the current URL.
   */
  protected static $DROP_QUERY_PARAMS = array(
    'code',
    'state',
    'signed_request',
  );

  /**
   * Maps aliases to Facebook domains.
   */
  public static $DOMAIN_MAP = array(
    'api'       => 'https://api.facebook.com/',
    'api_video' => 'https://api-video.facebook.com/',
    'api_read'  => 'https://api-read.facebook.com/',
    'graph'     => 'https://graph.facebook.com/',
    'www'       => 'https://www.facebook.com/',
  );

  /**
   * The Application ID.
   *
   * @var string
   */
  protected $appId;

  /**
   * The Application API Secret.
   *
   * @var string
   */
  protected $apiSecret;

  /**
   * The ID of the Facebook user, or 0 if the user is logged out.
   *
   * @var integer
   */
  protected $user;

  /**
   * The data from the signed_request token.
   */
  protected $signedRequest;

  /**
   * A CSRF state variable to assist in the defense against CSRF attacks.
   */
  protected $state;

  /**
   * The OAuth access token received in exchange for a valid authorization
   * code.  null means the access token has yet to be determined.
   *
   * @var string
   */
  protected $accessToken = null;

  /**
   * Indicates if the CURL based @ syntax for file uploads is enabled.
   *
   * @var boolean
   */
  protected $fileUploadSupport = false;

  /**
   * Initialize a Facebook Application.
   *
   * The configuration:
   * - appId: the application ID
   * - secret: the application secret
   * - fileUpload: (optional) boolean indicating if file uploads are enabled
   *
   * @param array $config The application configuration
   */
  public function __construct($config) {
    $this->setAppId($config['appId']);
    $this->setApiSecret($config['secret']);
    if (isset($config['fileUpload'])) {
      $this->setFileUploadSupport($config['fileUpload']);
    }

    $state = $this->getPersistentData('state');
    if (!empty($state)) {
      $this->state = $this->getPersistentData('state');
    }
  }

  /**
   * Set the Application ID.
   *
   * @param string $appId The Application ID
   * @return BaseFacebook
   */
  public function setAppId($appId) {
    $this->appId = $appId;
    return $this;
  }

  /**
   * Get the Application ID.
   *
   * @return string the Application ID
   */
  public function getAppId() {
    return $this->appId;
  }

  /**
   * Set the API Secret.
   *
   * @param string $apiSecret The API Secret
   * @return BaseFacebook
   */
  public function setApiSecret($apiSecret) {
    $this->apiSecret = $apiSecret;
    return $this;
  }

  /**
   * Get the API Secret.
   *
   * @return string the API Secret
   */
  public function getApiSecret() {
    return $this->apiSecret;
  }

  /**
   * Set the file upload support status.
   *
   * @param boolean $fileUploadSupport The file upload support status.
   * @return BaseFacebook
   */
  public function setFileUploadSupport($fileUploadSupport) {
    $this->fileUploadSupport = $fileUploadSupport;
    return $this;
  }

  /**
   * Get the file upload support status.
   *
   * @return boolean true if and only if the server supports file upload.
   */
  public function useFileUploadSupport() {
    return $this->fileUploadSupport;
  }

  /**
   * Sets the access token for api calls.  Use this if you get
   * your access token by other means and just want the SDK
   * to use it.
   *
   * @param string $access_token an access token.
   * @return BaseFacebook
   */
  public function setAccessToken($access_token) {
    $this->accessToken = $access_token;
    return $this;
  }
}