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1 <?php
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2
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3 /**
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4 * The Permissions that are requested from a User by an App may not be fully
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5 * granted, or may not remain constant - a user can choose to not grant some
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6 * Permissions and can revoke these Permissions afterwards through their
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7 * Facebook account settings. In order to provide a positive user experience,
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8 * Apps should be built to handle these situations.
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9 *
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10 * @author Xavier Barbosa
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11 * @since 13 February, 2013
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12 * @link https://developers.facebook.com/docs/howtos/login/handling-revoked-permissions/
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13 **/
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14
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15 use Mute\Facebook\App;
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16 use Mute\Facebook\Exception\GraphAPIException;
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17
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18 /**
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19 * Default params
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20 **/
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21
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22 $app_id = "YOUR_APP_ID";
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23 $app_secret = "YOUR_APP_SECRET";
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24 $access_token = 'USER_ACCESS_TOKEN';
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25 $user_id = 'USER_ID';
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26
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27 /**
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28 * Step 1. Detecting Granted Permissions
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29 **/
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30
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31 $app = new App($app_id, $app_secret);
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32 $permissions = $app->get($user_id . '/permissions', array(
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33 'access_token' => $access_token,
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34 ));
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35
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36 var_dump($permissions);
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37
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38 /**
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39 * Step 2. Failing Gracefully When Encountering Missing Permissions
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40 **/
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41
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42 try {
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43 $app->post('me/socialhiking:hike', array(
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44 'access_token' => $access_token,
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45 'hike' => 'http://samples.ogp.me/338293766265387',
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46 ));
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47 } catch (GraphAPIException $e) {
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48 var_dump($e->getData);
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49 }
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