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+<?php
+/*
+ * oauth_client.php
+ *
+ * @(#) $Id: oauth_client.php,v 1.58 2013/04/11 09:33:16 mlemos Exp $
+ *
+ */
+
+/*
+{metadocument}<?xml version="1.0" encoding="ISO-8859-1" ?>
+<class>
+
+ <package>net.manuellemos.oauth</package>
+
+ <version>@(#) $Id: oauth_client.php,v 1.58 2013/04/11 09:33:16 mlemos Exp $</version>
+ <copyright>Copyright © (C) Manuel Lemos 2012</copyright>
+ <title>OAuth client</title>
+ <author>Manuel Lemos</author>
+ <authoraddress>mlemos-at-acm.org</authoraddress>
+
+ <documentation>
+ <idiom>en</idiom>
+ <purpose>This class serves two main purposes:<paragraphbreak />
+ 1) Implement the OAuth protocol to retrieve a token from a server to
+ authorize the access to an API on behalf of the current
+ user.<paragraphbreak />
+ 2) Perform calls to a Web services API using a token previously
+ obtained using this class or a token provided some other way by the
+ Web services provider.</purpose>
+ <usage>Regardless of your purposes, you always need to start calling
+ the class <functionlink>Initialize</functionlink> function after
+ initializing setup variables. After you are done with the class,
+ always call the <functionlink>Finalize</functionlink> function at
+ the end.<paragraphbreak />
+ This class supports either OAuth protocol versions 1.0, 1.0a and
+ 2.0. It abstracts the differences between these protocol versions,
+ so the class usage is the same independently of the OAuth
+ version of the server.<paragraphbreak />
+ The class also provides built-in support to several popular OAuth
+ servers, so you do not have to manually configure all the details to
+ access those servers. Just set the
+ <variablelink>server</variablelink> variable to configure the class
+ to access one of the built-in supported servers.<paragraphbreak />
+ If you need to access one type of server that is not yet directly
+ supported by the class, you need to configure it explicitly setting
+ the variables: <variablelink>oauth_version</variablelink>,
+ <variablelink>url_parameters</variablelink>,
+ <variablelink>authorization_header</variablelink>,
+ <variablelink>request_token_url</variablelink>,
+ <variablelink>dialog_url</variablelink>,
+ <variablelink>offline_dialog_url</variablelink>,
+ <variablelink>append_state_to_redirect_uri</variablelink> and
+ <variablelink>access_token_url</variablelink>.<paragraphbreak />
+ Before proceeding to the actual OAuth authorization process, you
+ need to have registered your application with the OAuth server. The
+ registration provides you values to set the variables
+ <variablelink>client_id</variablelink> and
+ <variablelink>client_secret</variablelink>.<paragraphbreak />
+ You also need to set the variables
+ <variablelink>redirect_uri</variablelink> and
+ <variablelink>scope</variablelink> before calling the
+ <functionlink>Process</functionlink> function to make the class
+ perform the necessary interactions with the OAuth
+ server.<paragraphbreak />
+ The OAuth protocol involves multiple steps that include redirection
+ to the OAuth server. There it asks permission to the current user to
+ grant your application access to APIs on his/her behalf. When there
+ is a redirection, the class will set the
+ <variablelink>exit</variablelink> variable to
+ <booleanvalue>1</booleanvalue>. Then your script should exit
+ immediately without outputting anything.<paragraphbreak />
+ When the OAuth access token is successfully obtained, the following
+ variables are set by the class with the obtained values:
+ <variablelink>access_token</variablelink>,
+ <variablelink>access_token_secret</variablelink>,
+ <variablelink>access_token_expiry</variablelink>,
+ <variablelink>access_token_type</variablelink>. You may want to
+ store these values to use them later when calling the server
+ APIs.<paragraphbreak />
+ If there was a problem during OAuth authorization process, check the
+ variable <variablelink>authorization_error</variablelink> to
+ determine the reason.<paragraphbreak />
+ Once you get the access token, you can call the server APIs using
+ the <functionlink>CallAPI</functionlink> function. Check the
+ <variablelink>access_token_error</variablelink> variable to
+ determine if there was an error when trying to to call the
+ API.<paragraphbreak />
+ If for some reason the user has revoked the access to your
+ application, you need to ask the user to authorize your application
+ again. First you may need to call the function
+ <functionlink>ResetAccessToken</functionlink> to reset the value of
+ the access token that may be cached in session variables.</usage>
+ </documentation>
+
+{/metadocument}
+*/
+
+class oauth_client_class
+{
+/*
+{metadocument}
+ <variable>
+ <name>error</name>
+ <type>STRING</type>
+ <value></value>
+ <documentation>
+ <purpose>Store the message that is returned when an error
+ occurs.</purpose>
+ <usage>Check this variable to understand what happened when a call to
+ any of the class functions has failed.<paragraphbreak />
+ This class uses cumulative error handling. This means that if one
+ class functions that may fail is called and this variable was
+ already set to an error message due to a failure in a previous call
+ to the same or other function, the function will also fail and does
+ not do anything.<paragraphbreak />
+ This allows programs using this class to safely call several
+ functions that may fail and only check the failure condition after
+ the last function call.<paragraphbreak />
+ Just set this variable to an empty string to clear the error
+ condition.</usage>
+ </documentation>
+ </variable>
+{/metadocument}
+*/
+ var $error = '';
+
+/*
+{metadocument}
+ <variable>
+ <name>debug</name>
+ <type>BOOLEAN</type>
+ <value>0</value>
+ <documentation>
+ <purpose>Control whether debug output is enabled</purpose>
+ <usage>Set this variable to <booleanvalue>1</booleanvalue> if you
+ need to check what is going on during calls to the class. When
+ enabled, the debug output goes either to the variable
+ <variablelink>debug_output</variablelink> and the PHP error log.</usage>
+ </documentation>
+ </variable>
+{/metadocument}
+*/
+ var $debug = false;
+
+/*
+{metadocument}
+ <variable>
+ <name>debug_http</name>
+ <type>BOOLEAN</type>
+ <value>0</value>
+ <documentation>
+ <purpose>Control whether the dialog with the remote Web server
+ should also be logged.</purpose>
+ <usage>Set this variable to <booleanvalue>1</booleanvalue> if you
+ want to inspect the data exchange with the OAuth server.</usage>
+ </documentation>
+ </variable>
+{/metadocument}
+*/
+ var $debug_http = false;
+
+/*
+{metadocument}
+ <variable>
+ <name>exit</name>
+ <type>BOOLEAN</type>
+ <value>0</value>
+ <documentation>
+ <purpose>Determine if the current script should be exited.</purpose>
+ <usage>Check this variable after calling the
+ <functionlink>Process</functionlink> function and exit your script
+ immediately if the variable is set to
+ <booleanvalue>1</booleanvalue>.</usage>
+ </documentation>
+ </variable>
+{/metadocument}
+*/
+ var $exit = false;
+
+/*
+{metadocument}
+ <variable>
+ <name>debug_output</name>
+ <type>STRING</type>
+ <value></value>
+ <documentation>
+ <purpose>Capture the debug output generated by the class</purpose>
+ <usage>Inspect this variable if you need to see what happened during
+ the class function calls.</usage>
+ </documentation>
+ </variable>
+{/metadocument}
+*/
+ var $debug_output = '';
+
+/*
+{metadocument}
+ <variable>
+ <name>debug_prefix</name>
+ <type>STRING</type>
+ <value>OAuth client: </value>
+ <documentation>
+ <purpose>Mark the lines of the debug output to identify actions
+ performed by this class.</purpose>
+ <usage>Change this variable if you prefer the debug output lines to
+ be prefixed with a different text.</usage>
+ </documentation>
+ </variable>
+{/metadocument}
+*/
+ var $debug_prefix = 'OAuth client: ';
+
+/*
+{metadocument}
+ <variable>
+ <name>server</name>
+ <type>STRING</type>
+ <value></value>
+ <documentation>
+ <purpose>Identify the type of OAuth server to access.</purpose>
+ <usage>The class provides built-in support to several types of OAuth
+ servers. This means that the class can automatically initialize
+ several configuration variables just by setting this server
+ variable.<paragraphbreak />
+ Currently it supports the following servers:
+ <stringvalue>Bitbucket</stringvalue>,
+ <stringvalue>Box</stringvalue>,
+ <stringvalue>Dropbox</stringvalue>,
+ <stringvalue>Eventful</stringvalue>,
+ <stringvalue>Facebook</stringvalue>,
+ <stringvalue>Fitbit</stringvalue>,
+ <stringvalue>Flickr</stringvalue>,
+ <stringvalue>Foursquare</stringvalue>,
+ <stringvalue>github</stringvalue>,
+ <stringvalue>Google</stringvalue>,
+ <stringvalue>Instagram</stringvalue>,
+ <stringvalue>LinkedIn</stringvalue>,
+ <stringvalue>Microsoft</stringvalue>,
+ <stringvalue>Scoop.it</stringvalue>,
+ <stringvalue>StockTwits</stringvalue>,
+ <stringvalue>Tumblr</stringvalue>,
+ <stringvalue>Twitter</stringvalue>,
+ <stringvalue>XING</stringvalue> and
+ <stringvalue>Yahoo</stringvalue>. Please contact the author if you
+ would like to ask to add built-in support for other types of OAuth
+ servers.<paragraphbreak />
+ If you want to access other types of OAuth servers that are not
+ yet supported, set this variable to an empty string and configure
+ other variables with values specific to those servers.</usage>
+ </documentation>
+ </variable>
+{/metadocument}
+*/
+ var $server = '';
+
+/*
+{metadocument}
+ <variable>
+ <name>request_token_url</name>
+ <type>STRING</type>
+ <value></value>
+ <documentation>
+ <purpose>URL of the OAuth server to request the initial token for
+ OAuth 1.0 and 1.0a servers.</purpose>
+ <usage>Set this variable to the OAuth request token URL when you are
+ not accessing one of the built-in supported OAuth
+ servers.<paragraphbreak />
+ For OAuth 1.0 and 1.0a servers, the request token URL can have
+ certain marks that will act as template placeholders which will be
+ replaced with given values before requesting the authorization
+ token. Currently it supports the following placeholder
+ marks:<paragraphbreak />
+ {SCOPE} - scope of the requested permissions to the granted by the
+ OAuth server with the user permissions</usage>
+ </documentation>
+ </variable>
+{/metadocument}
+*/
+ var $request_token_url = '';
+
+/*
+{metadocument}
+ <variable>
+ <name>dialog_url</name>
+ <type>STRING</type>
+ <value></value>
+ <documentation>
+ <purpose>URL of the OAuth server to redirect the browser so the user
+ can grant access to your application.</purpose>
+ <usage>Set this variable to the OAuth request token URL when you are
+ not accessing one of the built-in supported OAuth servers.<paragraphbreak />
+ For certain servers, the dialog URL can have certain marks that
+ will act as template placeholders which will be replaced with
+ values defined before redirecting the users browser. Currently it
+ supports the following placeholder marks:<paragraphbreak />
+ {REDIRECT_URI} - URL to redirect when returning from the OAuth
+ server authorization page<paragraphbreak />
+ {CLIENT_ID} - client application identifier registered at the
+ server<paragraphbreak />
+ {SCOPE} - scope of the requested permissions to the granted by the
+ OAuth server with the user permissions<paragraphbreak />
+ {STATE} - identifier of the OAuth session state</usage>
+ </documentation>
+ </variable>
+{/metadocument}
+*/
+ var $dialog_url = '';
+
+/*
+{metadocument}
+ <variable>
+ <name>offline_dialog_url</name>
+ <type>STRING</type>
+ <value></value>
+ <documentation>
+ <purpose>URL of the OAuth server to redirect the browser so the user
+ can grant access to your application when offline access is
+ requested.</purpose>
+ <usage>Set this variable to the OAuth request token URL when you are
+ not accessing one of the built-in supported OAuth servers and the
+ OAuth server supports offline access.<paragraphbreak />
+ It should have the same format as the
+ <variablelink>dialog_url</variablelink> variable.</usage>
+ </documentation>
+ </variable>
+{/metadocument}
+*/
+ var $offline_dialog_url = '';
+
+/*
+{metadocument}
+ <variable>
+ <name>append_state_to_redirect_uri</name>
+ <type>STRING</type>
+ <value></value>
+ <documentation>
+ <purpose>Pass the OAuth session state in a variable with a different
+ name to work around implementation bugs of certain OAuth
+ servers</purpose>
+ <usage>Set this variable when you are not accessing one of the
+ built-in supported OAuth servers if the OAuth server has a bug
+ that makes it not pass back the OAuth state identifier in a
+ request variable named state.</usage>
+ </documentation>
+ </variable>
+{/metadocument}
+*/
+ var $append_state_to_redirect_uri = '';
+
+/*
+{metadocument}
+ <variable>
+ <name>access_token_url</name>
+ <type>STRING</type>
+ <value></value>
+ <documentation>
+ <purpose>OAuth server URL that will return the access token
+ URL.</purpose>
+ <usage>Set this variable to the OAuth access token URL when you are
+ not accessing one of the built-in supported OAuth servers.</usage>
+ </documentation>
+ </variable>
+{/metadocument}
+*/
+ var $access_token_url = '';
+
+
+/*
+{metadocument}
+ <variable>
+ <name>oauth_version</name>
+ <type>STRING</type>
+ <value>2.0</value>
+ <documentation>
+ <purpose>Version of the protocol version supported by the OAuth
+ server.</purpose>
+ <usage>Set this variable to the OAuth server protocol version when
+ you are not accessing one of the built-in supported OAuth
+ servers.</usage>
+ </documentation>
+ </variable>
+{/metadocument}
+*/
+ var $oauth_version = '2.0';
+
+/*
+{metadocument}
+ <variable>
+ <name>url_parameters</name>
+ <type>BOOLEAN</type>
+ <value>0</value>
+ <documentation>
+ <purpose>Determine if the API call parameters should be moved to the
+ call URL.</purpose>
+ <usage>Set this variable to <booleanvalue>1</booleanvalue> if the
+ API you need to call requires that the call parameters always be
+ passed via the API URL.</usage>
+ </documentation>
+ </variable>
+{/metadocument}
+*/
+ var $url_parameters = false;
+
+/*
+{metadocument}
+ <variable>
+ <name>authorization_header</name>
+ <type>BOOLEAN</type>
+ <value>1</value>
+ <documentation>
+ <purpose>Determine if the OAuth parameters should be passed via HTTP
+ Authorization request header.</purpose>
+ <usage>Set this variable to <booleanvalue>1</booleanvalue> if the
+ OAuth server requires that the OAuth parameters be passed using
+ the HTTP Authorization instead of the request URI parameters.</usage>
+ </documentation>
+ </variable>
+{/metadocument}
+*/
+ var $authorization_header = true;
+
+/*
+{metadocument}
+ <variable>
+ <name>token_request_method</name>
+ <type>STRING</type>
+ <value>GET</value>
+ <documentation>
+ <purpose>Define the HTTP method that should be used to request
+ tokens from the server.</purpose>
+ <usage>Set this variable to <stringvalue>POST</stringvalue> if the
+ OAuth server does not support requesting tokens using the HTTP GET
+ method.</usage>
+ </documentation>
+ </variable>
+{/metadocument}
+*/
+ var $token_request_method = 'GET';
+
+/*
+{metadocument}
+ <variable>
+ <name>signature_method</name>
+ <type>STRING</type>
+ <value>HMAC-SHA1</value>
+ <documentation>
+ <purpose>Define the method to generate the signature for API request
+ parameters values.</purpose>
+ <usage>Currently it supports <stringvalue>PLAINTEXT</stringvalue>
+ and <stringvalue>HMAC-SHA1</stringvalue>.</usage>
+ </documentation>
+ </variable>
+{/metadocument}
+*/
+ var $signature_method = 'HMAC-SHA1';
+
+/*
+{metadocument}
+ <variable>
+ <name>redirect_uri</name>
+ <type>STRING</type>
+ <value></value>
+ <documentation>
+ <purpose>URL of the current script page that is calling this
+ class</purpose>
+ <usage>Set this variable to the current script page URL before
+ proceeding the the OAuth authorization process.</usage>
+ </documentation>
+ </variable>
+{/metadocument}
+*/
+ var $redirect_uri = '';
+
+/*
+{metadocument}
+ <variable>
+ <name>client_id</name>
+ <type>STRING</type>
+ <value></value>
+ <documentation>
+ <purpose>Identifier of your application registered with the OAuth
+ server</purpose>
+ <usage>Set this variable to the application identifier that is
+ provided by the OAuth server when you register the
+ application.</usage>
+ </documentation>
+ </variable>
+{/metadocument}
+*/
+ var $client_id = '';
+
+/*
+{metadocument}
+ <variable>
+ <name>client_secret</name>
+ <type>STRING</type>
+ <value></value>
+ <documentation>
+ <purpose>Secret value assigned to your application when it is
+ registered with the OAuth server.</purpose>
+ <usage>Set this variable to the application secret that is provided
+ by the OAuth server when you register the application.</usage>
+ </documentation>
+ </variable>
+{/metadocument}
+*/
+ var $client_secret = '';
+
+/*
+{metadocument}
+ <variable>
+ <name>scope</name>
+ <type>STRING</type>
+ <value></value>
+ <documentation>
+ <purpose>Permissions that your application needs to call the OAuth
+ server APIs</purpose>
+ <usage>Check the documentation of the APIs that your application
+ needs to call to set this variable with the identifiers of the
+ permissions that the user needs to grant to your application.</usage>
+ </documentation>
+ </variable>
+{/metadocument}
+*/
+ var $scope = '';
+
+/*
+{metadocument}
+ <variable>
+ <name>offline</name>
+ <type>BOOLEAN</type>
+ <value>0</value>
+ <documentation>
+ <purpose>Specify whether it will be necessary to call the API when
+ the user is not present and the server supports renewing expired
+ access tokens using refresh tokens.</purpose>
+ <usage>Set this variable to <booleanvalue>1</booleanvalue> if the
+ server supports renewing expired tokens automatically when the
+ user is not present.</usage>
+ </documentation>
+ </variable>
+{/metadocument}
+*/
+ var $offline = false;
+
+/*
+{metadocument}
+ <variable>
+ <name>access_token</name>
+ <type>STRING</type>
+ <value></value>
+ <documentation>
+ <purpose>Access token obtained from the OAuth server</purpose>
+ <usage>Check this variable to get the obtained access token upon
+ successful OAuth authorization.</usage>
+ </documentation>
+ </variable>
+{/metadocument}
+*/
+ var $access_token = '';
+
+/*
+{metadocument}
+ <variable>
+ <name>access_token_secret</name>
+ <type>STRING</type>
+ <value></value>
+ <documentation>
+ <purpose>Access token secret obtained from the OAuth server</purpose>
+ <usage>If the OAuth protocol version is 1.0 or 1.0a, check this
+ variable to get the obtained access token secret upon successful
+ OAuth authorization.</usage>
+ </documentation>
+ </variable>
+{/metadocument}
+*/
+ var $access_token_secret = '';
+
+/*
+{metadocument}
+ <variable>
+ <name>access_token_expiry</name>
+ <type>STRING</type>
+ <value></value>
+ <documentation>
+ <purpose>Timestamp of the expiry of the access token obtained from
+ the OAuth server.</purpose>
+ <usage>Check this variable to get the obtained access token expiry
+ time upon successful OAuth authorization. If this variable is
+ empty, that means no expiry time was set.</usage>
+ </documentation>
+ </variable>
+{/metadocument}
+*/
+ var $access_token_expiry = '';
+
+/*
+{metadocument}
+ <variable>
+ <name>access_token_type</name>
+ <type>STRING</type>
+ <value></value>
+ <documentation>
+ <purpose>Type of access token obtained from the OAuth server.</purpose>
+ <usage>Check this variable to get the obtained access token type
+ upon successful OAuth authorization.</usage>
+ </documentation>
+ </variable>
+{/metadocument}
+*/
+ var $access_token_type = '';
+
+/*
+{metadocument}
+ <variable>
+ <name>refresh_token</name>
+ <type>STRING</type>
+ <value></value>
+ <documentation>
+ <purpose>Refresh token obtained from the OAuth server</purpose>
+ <usage>Check this variable to get the obtained refresh token upon
+ successful OAuth authorization.</usage>
+ </documentation>
+ </variable>
+{/metadocument}
+*/
+ var $refresh_token = '';
+
+/*
+{metadocument}
+ <variable>
+ <name>access_token_error</name>
+ <type>STRING</type>
+ <value></value>
+ <documentation>
+ <purpose>Error message returned when a call to the API fails.</purpose>
+ <usage>Check this variable to determine if there was an error while
+ calling the Web services API when using the
+ <functionlink>CallAPI</functionlink> function.</usage>
+ </documentation>
+ </variable>
+{/metadocument}
+*/
+ var $access_token_error = '';
+
+/*
+{metadocument}
+ <variable>
+ <name>authorization_error</name>
+ <type>STRING</type>
+ <value></value>
+ <documentation>
+ <purpose>Error message returned when it was not possible to obtain
+ an OAuth access token</purpose>
+ <usage>Check this variable to determine if there was an error while
+ trying to obtain the OAuth access token.</usage>
+ </documentation>
+ </variable>
+{/metadocument}
+*/
+ var $authorization_error = '';
+
+/*
+{metadocument}
+ <variable>
+ <name>response_status</name>
+ <type>INTEGER</type>
+ <value>0</value>
+ <documentation>
+ <purpose>HTTP response status returned by the server when calling an
+ API</purpose>
+ <usage>Check this variable after calling the
+ <functionlink>CallAPI</functionlink> function if the API calls and you
+ need to process the error depending the response status.
+ <integervalue>200</integervalue> means no error.
+ <integervalue>0</integervalue> means the server response was not
+ retrieved.</usage>
+ </documentation>
+ </variable>
+{/metadocument}
+*/
+ var $response_status = 0;
+
+ var $oauth_user_agent = 'PHP-OAuth-API (http://www.phpclasses.org/oauth-api $Revision: 1.58 $)';
+ var $session_started = false;
+
+ Function SetError($error)
+ {
+ $this->error = $error;
+ if($this->debug)
+ $this->OutputDebug('Error: '.$error);
+ return(false);
+ }
+
+ Function SetPHPError($error, &$php_error_message)
+ {
+ if(IsSet($php_error_message)
+ && strlen($php_error_message))
+ $error.=": ".$php_error_message;
+ return($this->SetError($error));
+ }
+
+ Function OutputDebug($message)
+ {
+ if($this->debug)
+ {
+ $message = $this->debug_prefix.$message;
+ $this->debug_output .= $message."\n";;
+ error_log($message);
+ }
+ return(true);
+ }
+
+ Function GetRequestTokenURL(&$request_token_url)
+ {
+ $request_token_url = $this->request_token_url;
+ return(true);
+ }
+
+ Function GetDialogURL(&$url, $redirect_uri = '', $state = '')
+ {
+ $url = (($this->offline && strlen($this->offline_dialog_url)) ? $this->offline_dialog_url : $this->dialog_url);
+ if(strlen($url) === 0)
+ return $this->SetError('the dialog URL '.($this->offline ? 'for offline access ' : '').'is not defined for this server');
+ $url = str_replace(
+ '{REDIRECT_URI}', UrlEncode($redirect_uri), str_replace(
+ '{STATE}', UrlEncode($state), str_replace(
+ '{CLIENT_ID}', UrlEncode($this->client_id), str_replace(
+ '{SCOPE}', UrlEncode($this->scope),
+ $url))));
+ return(true);
+ }
+
+ Function GetAccessTokenURL(&$access_token_url)
+ {
+ $access_token_url = $this->access_token_url;
+ return(true);
+ }
+
+ Function GetStoredState(&$state)
+ {
+ if(!$this->session_started)
+ {
+ if(!function_exists('session_start'))
+ return $this->SetError('Session variables are not accessible in this PHP environment');
+ }
+ if(IsSet($_SESSION['OAUTH_STATE']))
+ $state = $_SESSION['OAUTH_STATE'];
+ else
+ $state = $_SESSION['OAUTH_STATE'] = time().'-'.substr(md5(rand().time()), 0, 6);
+ return(true);
+ }
+
+ Function GetRequestState(&$state)
+ {
+ $check = (strlen($this->append_state_to_redirect_uri) ? $this->append_state_to_redirect_uri : 'state');
+ $state = (IsSet($_GET[$check]) ? $_GET[$check] : null);
+ return(true);
+ }
+
+ Function GetRequestCode(&$code)
+ {
+ $code = (IsSet($_GET['code']) ? $_GET['code'] : null);
+ return(true);
+ }
+
+ Function GetRequestError(&$error)
+ {
+ $error = (IsSet($_GET['error']) ? $_GET['error'] : null);
+ return(true);
+ }
+
+ Function GetRequestDenied(&$denied)
+ {
+ $denied = (IsSet($_GET['denied']) ? $_GET['denied'] : null);
+ return(true);
+ }
+
+ Function GetRequestToken(&$token, &$verifier)
+ {
+ $token = (IsSet($_GET['oauth_token']) ? $_GET['oauth_token'] : null);
+ $verifier = (IsSet($_GET['oauth_verifier']) ? $_GET['oauth_verifier'] : null);
+ return(true);
+ }
+
+ Function GetRedirectURI(&$redirect_uri)
+ {
+ if(strlen($this->redirect_uri))
+ $redirect_uri = $this->redirect_uri;
+ else
+ $redirect_uri = 'http://'.$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI'];
+ return true;
+ }
+
+/*
+{metadocument}
+ <function>
+ <name>StoreAccessToken</name>
+ <type>BOOLEAN</type>
+ <documentation>
+ <purpose>Store the values of the access token when it is succefully
+ retrieved from the OAuth server.</purpose>
+ <usage>This function is meant to be only be called from inside the
+ class. By default it stores access tokens in a session variable
+ named <stringvalue>OAUTH_ACCESS_TOKEN</stringvalue>.<paragraphbreak />
+ Actual implementations should create a sub-class and override this
+ function to make the access token values be stored in other types
+ of containers, like for instance databases.</usage>
+ <returnvalue>This function should return
+ <booleanvalue>1</booleanvalue> if the access token was stored
+ successfully.</returnvalue>
+ </documentation>
+ <argument>
+ <name>access_token</name>
+ <type>HASH</type>
+ <documentation>
+ <purpose>Associative array with properties of the access token.
+ The array may have set the following
+ properties:<paragraphbreak />
+ <stringvalue>value</stringvalue>: string value of the access
+ token<paragraphbreak />
+ <stringvalue>authorized</stringvalue>: boolean value that
+ determines if the access token was obtained
+ successfully<paragraphbreak />
+ <stringvalue>expiry</stringvalue>: (optional) timestamp in ISO
+ format relative to UTC time zone of the access token expiry
+ time<paragraphbreak />
+ <stringvalue>type</stringvalue>: (optional) type of OAuth token
+ that may determine how it should be used when sending API call
+ requests.<paragraphbreak />
+ <stringvalue>refresh</stringvalue>: (optional) token that some
+ servers may set to allowing refreshing access tokens when they
+ expire.</purpose>
+ </documentation>
+ </argument>
+ <do>
+{/metadocument}
+*/
+ Function StoreAccessToken($access_token)
+ {
+ if(!$this->session_started)
+ {
+ if(!function_exists('session_start'))
+ return $this->SetError('Session variables are not accessible in this PHP environment');
+ }
+ $_SESSION['OAUTH_ACCESS_TOKEN'][$this->access_token_url] = $access_token;
+ return true;
+ }
+/*
+{metadocument}
+ </do>
+ </function>
+{/metadocument}
+*/
+
+/*
+{metadocument}
+ <function>
+ <name>GetAccessToken</name>
+ <type>BOOLEAN</type>
+ <documentation>
+ <purpose>Retrieve the OAuth access token if it was already
+ previously stored by the
+ <functionlink>StoreAccessToken</functionlink> function.</purpose>
+ <usage>This function is meant to be only be called from inside the
+ class. By default it retrieves access tokens stored in a session
+ variable named
+ <stringvalue>OAUTH_ACCESS_TOKEN</stringvalue>.<paragraphbreak />
+ Actual implementations should create a sub-class and override this
+ function to retrieve the access token values from other types of
+ containers, like for instance databases.</usage>
+ <returnvalue>This function should return
+ <booleanvalue>1</booleanvalue> if the access token was retrieved
+ successfully.</returnvalue>
+ </documentation>
+ <argument>
+ <name>access_token</name>
+ <type>STRING</type>
+ <out />
+ <documentation>
+ <purpose>Return the properties of the access token in an
+ associative array. If the access token was not yet stored, it
+ returns an empty array. Otherwise, the properties it may return
+ are the same that may be passed to the
+ <functionlink>StoreAccessToken</functionlink>.</purpose>
+ </documentation>
+ </argument>
+ <do>
+{/metadocument}
+*/
+ Function GetAccessToken(&$access_token)
+ {
+ if(!$this->session_started)
+ {
+ if(!function_exists('session_start'))
+ return $this->SetError('Session variables are not accessible in this PHP environment');
+ if(!session_start())
+ return($this->SetPHPError('it was not possible to start the PHP session', $php_error_message));
+ $this->session_started = true;
+ }
+ if(IsSet($_SESSION['OAUTH_ACCESS_TOKEN'][$this->access_token_url]))
+ $access_token = $_SESSION['OAUTH_ACCESS_TOKEN'][$this->access_token_url];
+ else
+ $access_token = array();
+ return true;
+ }
+/*
+{metadocument}
+ </do>
+ </function>
+{/metadocument}
+*/
+
+/*
+{metadocument}
+ <function>
+ <name>ResetAccessToken</name>
+ <type>BOOLEAN</type>
+ <documentation>
+ <purpose>Reset the access token to a state back when the user has
+ not yet authorized the access to the OAuth server API.</purpose>
+ <usage>Call this function if for some reason the token to access
+ the API was revoked and you need to ask the user to authorize
+ the access again.<paragraphbreak />
+ By default the class stores and retrieves access tokens in a
+ session variable named
+ <stringvalue>OAUTH_ACCESS_TOKEN</stringvalue>.<paragraphbreak />
+ This function must be called when the user is accessing your site
+ pages, so it can reset the information stored in session variables
+ that cache the state of a previously retrieved access
+ token.<paragraphbreak />
+ Actual implementations should create a sub-class and override this
+ function to reset the access token state when it is stored in
+ other types of containers, like for instance databases.</usage>
+ <returnvalue>This function should return
+ <booleanvalue>1</booleanvalue> if the access token was resetted
+ successfully.</returnvalue>
+ </documentation>
+ <do>
+{/metadocument}
+*/
+ Function ResetAccessToken()
+ {
+ if($this->debug)
+ $this->OutputDebug('Resetting the access token status for OAuth server located at '.$this->access_token_url);
+ if(!$this->session_started)
+ {
+ if(!function_exists('session_start'))
+ return $this->SetError('Session variables are not accessible in this PHP environment');
+ if(!session_start())
+ return($this->SetPHPError('it was not possible to start the PHP session', $php_error_message));
+ }
+ $this->session_started = true;
+ if(IsSet($_SESSION['OAUTH_ACCESS_TOKEN'][$this->access_token_url]))
+ Unset($_SESSION['OAUTH_ACCESS_TOKEN'][$this->access_token_url]);
+ return true;
+ }
+/*
+{metadocument}
+ </do>
+ </function>
+{/metadocument}
+*/
+
+ Function Encode($value)
+ {
+ return(is_array($value) ? $this->EncodeArray($value) : str_replace('%7E', '~', str_replace('+',' ', RawURLEncode($value))));
+ }
+
+ Function EncodeArray($array)
+ {
+ foreach($array as $key => $value)
+ $array[$key] = $this->Encode($value);
+ return $array;
+ }
+
+ Function HMAC($function, $data, $key)
+ {
+ switch($function)
+ {
+ case 'sha1':
+ $pack = 'H40';
+ break;
+ default:
+ if($this->debug)
+ $this->OutputDebug($function.' is not a supported an HMAC hash type');
+ return('');
+ }
+ if(strlen($key) > 64)
+ $key = pack($pack, $function($key));
+ if(strlen($key) < 64)
+ $key = str_pad($key, 64, "\0");
+ return(pack($pack, $function((str_repeat("\x5c", 64) ^ $key).pack($pack, $function((str_repeat("\x36", 64) ^ $key).$data)))));
+ }
+
+ Function SendAPIRequest($url, $method, $parameters, $oauth, $options, &$response)
+ {
+ $this->response_status = 0;
+ $http = new http_class;
+ $http->debug = ($this->debug && $this->debug_http);
+ $http->log_debug = true;
+ $http->sasl_authenticate = 0;
+ $http->user_agent = $this->oauth_user_agent;
+ $http->redirection_limit = (IsSet($options['FollowRedirection']) ? intval($options['FollowRedirection']) : 0);
+ $http->follow_redirect = ($http->redirection_limit != 0);
+ if($this->debug)
+ $this->OutputDebug('Accessing the '.$options['Resource'].' at '.$url);
+ $post_files = array();
+ $method = strtoupper($method);
+ $authorization = '';
+ $type = (IsSet($options['RequestContentType']) ? strtolower(trim(strtok($options['RequestContentType'], ';'))) : 'application/x-www-form-urlencoded');
+ if(IsSet($oauth))
+ {
+ $values = array(
+ 'oauth_consumer_key'=>$this->client_id,
+ 'oauth_nonce'=>md5(uniqid(rand(), true)),
+ 'oauth_signature_method'=>$this->signature_method,
+ 'oauth_timestamp'=>time(),
+ 'oauth_version'=>'1.0',
+ );
+ $files = (IsSet($options['Files']) ? $options['Files'] : array());
+ if(count($files))
+ {
+ foreach($files as $name => $value)
+ {
+ if(!IsSet($parameters[$name]))
+ return($this->SetError('it was specified an file parameters named '.$name));
+ $file = array();
+ switch(IsSet($value['Type']) ? $value['Type'] : 'FileName')
+ {
+ case 'FileName':
+ $file['FileName'] = $parameters[$name];
+ break;
+ case 'Data':
+ $file['Data'] = $parameters[$name];
+ break;
+ default:
+ return($this->SetError($value['Type'].' is not a valid type for file '.$name));
+ }
+ $file['ContentType'] = (IsSet($value['Content-Type']) ? $value['Content-Type'] : 'automatic/name');
+ $post_files[$name] = $file;
+ }
+ UnSet($parameters[$name]);
+ if($method !== 'POST')
+ {
+ $this->OutputDebug('For uploading files the method should be POST not '.$method);
+ $method = 'POST';
+ }
+ if($type !== 'multipart/form-data')
+ {
+ if(IsSet($options['RequestContentType']))
+ return($this->SetError('the request content type for uploading files should be multipart/form-data'));
+ $type = 'multipart/form-data';
+ }
+ $value_parameters = array();
+ }
+ else
+ {
+ if($this->url_parameters
+ && $type === 'application/x-www-form-urlencoded'
+ && count($parameters))
+ {
+ $first = (strpos($url, '?') === false);
+ foreach($parameters as $parameter => $value)
+ {
+ $url .= ($first ? '?' : '&').UrlEncode($parameter).'='.UrlEncode($value);
+ $first = false;
+ }
+ $parameters = array();
+ }
+ $value_parameters = ($type !== 'application/x-www-form-urlencoded' ? array() : $parameters);
+ }
+ $values = array_merge($values, $oauth, $value_parameters);
+ $key = $this->Encode($this->client_secret).'&'.$this->Encode($this->access_token_secret);
+ switch($this->signature_method)
+ {
+ case 'PLAINTEXT':
+ $values['oauth_signature'] = $key;
+ break;
+ case 'HMAC-SHA1':
+ $uri = strtok($url, '?');
+ $sign = $method.'&'.$this->Encode($uri).'&';
+ $first = true;
+ $sign_values = $values;
+ $u = parse_url($url);
+ if(IsSet($u['query']))
+ {
+ parse_str($u['query'], $q);
+ foreach($q as $parameter => $value)
+ $sign_values[$parameter] = $value;
+ }
+ KSort($sign_values);
+ foreach($sign_values as $parameter => $value)
+ {
+ $sign .= $this->Encode(($first ? '' : '&').$parameter.'='.$this->Encode($value));
+ $first = false;
+ }
+ $values['oauth_signature'] = base64_encode($this->HMAC('sha1', $sign, $key));
+ break;
+ default:
+ return $this->SetError($this->signature_method.' signature method is not yet supported');
+ }
+ if($this->authorization_header)
+ {
+ $authorization = 'OAuth';
+ $first = true;
+ foreach($values as $parameter => $value)
+ {
+ $authorization .= ($first ? ' ' : ',').$parameter.'="'.$this->Encode($value).'"';
+ $first = false;
+ }
+ }
+ else
+ {
+ if($method === 'GET'
+ || (IsSet($options['PostValuesInURI'])
+ && $options['PostValuesInURI']))
+ {
+ $first = (strcspn($url, '?') == strlen($url));
+ foreach($values as $parameter => $value)
+ {
+ $url .= ($first ? '?' : '&').$parameter.'='.$this->Encode($value);
+ $first = false;
+ }
+ $post_values = array();
+ }
+ else
+ $post_values = $values;
+ }
+ }
+ if(strlen($error = $http->GetRequestArguments($url, $arguments)))
+ return($this->SetError('it was not possible to open the '.$options['Resource'].' URL: '.$error));
+ if(strlen($error = $http->Open($arguments)))
+ return($this->SetError('it was not possible to open the '.$options['Resource'].' URL: '.$error));
+ if(count($post_files))
+ $arguments['PostFiles'] = $post_files;
+ $arguments['RequestMethod'] = $method;
+ switch($type)
+ {
+ case 'application/x-www-form-urlencoded':
+ case 'multipart/form-data':
+ if(IsSet($options['RequestBody']))
+ return($this->SetError('the request body is defined automatically from the parameters'));
+ $arguments['PostValues'] = $parameters;
+ break;
+ case 'application/json':
+ $arguments['Headers']['Content-Type'] = $options['RequestContentType'];
+ if(!IsSet($options['RequestBody']))
+ {
+ $arguments['Body'] = json_encode($parameters);
+ break;
+ }
+ default:
+ if(!IsSet($options['RequestBody']))
+ return($this->SetError('it was not specified the body value of the of the API call request'));
+ $arguments['Headers']['Content-Type'] = $options['RequestContentType'];
+ $arguments['Body'] = $options['RequestBody'];
+ break;
+ }
+ $arguments['Headers']['Accept'] = (IsSet($options['Accept']) ? $options['Accept'] : '*/*');
+ if(strlen($authorization))
+ $arguments['Headers']['Authorization'] = $authorization;
+ if(strlen($error = $http->SendRequest($arguments))
+ || strlen($error = $http->ReadReplyHeaders($headers)))
+ {
+ $http->Close();
+ return($this->SetError('it was not possible to retrieve the '.$options['Resource'].': '.$error));
+ }
+ $error = $http->ReadWholeReplyBody($data);
+ $http->Close();
+ if(strlen($error))
+ {
+ return($this->SetError('it was not possible to access the '.$options['Resource'].': '.$error));
+ }
+ $this->response_status = intval($http->response_status);
+ $content_type = (IsSet($options['ResponseContentType']) ? $options['ResponseContentType'] : (IsSet($headers['content-type']) ? strtolower(trim(strtok($headers['content-type'], ';'))) : 'unspecified'));
+ switch($content_type)
+ {
+ case 'text/javascript':
+ case 'application/json':
+ if(!function_exists('json_decode'))
+ return($this->SetError('the JSON extension is not available in this PHP setup'));
+ $object = json_decode($data);
+ switch(GetType($object))
+ {
+ case 'object':
+ if(!IsSet($options['ConvertObjects'])
+ || !$options['ConvertObjects'])
+ $response = $object;
+ else
+ {
+ $response = array();
+ foreach($object as $property => $value)
+ $response[$property] = $value;
+ }
+ break;
+ case 'array':
+ $response = $object;
+ break;
+ default:
+ if(!IsSet($object))
+ return($this->SetError('it was not returned a valid JSON definition of the '.$options['Resource'].' values'));
+ $response = $object;
+ break;
+ }
+ break;
+ case 'application/x-www-form-urlencoded':
+ case 'text/plain':
+ case 'text/html':
+ parse_str($data, $response);
+ break;
+ default:
+ $response = $data;
+ break;
+ }
+ if($this->response_status >= 200
+ && $this->response_status < 300)
+ $this->access_token_error = '';
+ else
+ {
+ $this->access_token_error = 'it was not possible to access the '.$options['Resource'].': it was returned an unexpected response status '.$http->response_status.' Response: '.$data;
+ if($this->debug)
+ $this->OutputDebug('Could not retrieve the OAuth access. Error: '.$this->access_token_error);
+ if(IsSet($options['FailOnAccessError'])
+ && $options['FailOnAccessError'])
+ {
+ $this->error = $this->access_token_error;
+ return false;
+ }
+ }
+ return true;
+ }
+
+ Function ProcessToken($code, $refresh)
+ {
+ if($refresh)
+ {
+ $values = array(
+ 'client_id'=>$this->client_id,
+ 'client_secret'=>$this->client_secret,
+ 'refresh_token'=>$this->refresh_token,
+ 'grant_type'=>'refresh_token'
+ );
+ }
+ else
+ {
+ if(!$this->GetRedirectURI($redirect_uri))
+ return false;
+ $values = array(
+ 'code'=>$code,
+ 'client_id'=>$this->client_id,
+ 'client_secret'=>$this->client_secret,
+ 'redirect_uri'=>$redirect_uri,
+ 'grant_type'=>'authorization_code'
+ );
+ }
+ if(!$this->GetAccessTokenURL($url))
+ return false;
+ if(!$this->SendAPIRequest($url, 'POST', $values, null, array('Resource'=>'OAuth '.($refresh ? 'refresh' : 'access').' token', 'ConvertObjects'=>true), $response))
+ return false;
+ if(strlen($this->access_token_error))
+ {
+ $this->authorization_error = $this->access_token_error;
+ return true;
+ }
+ if(!IsSet($response['access_token']))
+ {
+ if(IsSet($response['error']))
+ {
+ $this->authorization_error = 'it was not possible to retrieve the access token: it was returned the error: '.$response['error'];
+ return true;
+ }
+ return($this->SetError('OAuth server did not return the access token'));
+ }
+ $access_token = array(
+ 'value'=>$this->access_token = $response['access_token'],
+ 'authorized'=>true
+ );
+ if($this->debug)
+ $this->OutputDebug('Access token: '.$this->access_token);
+ if(IsSet($response['expires'])
+ || IsSet($response['expires_in']))
+ {
+ $expires = (IsSet($response['expires']) ? $response['expires'] : $response['expires_in']);
+ if(strval($expires) !== strval(intval($expires))
+ || $expires <= 0)
+ return($this->SetError('OAuth server did not return a supported type of access token expiry time'));
+ $this->access_token_expiry = gmstrftime('%Y-%m-%d %H:%M:%S', time() + $expires);
+ if($this->debug)
+ $this->OutputDebug('Access token expiry: '.$this->access_token_expiry.' UTC');
+ $access_token['expiry'] = $this->access_token_expiry;
+ }
+ else
+ $this->access_token_expiry = '';
+ if(IsSet($response['token_type']))
+ {
+ $this->access_token_type = $response['token_type'];
+ if($this->debug)
+ $this->OutputDebug('Access token type: '.$this->access_token_type);
+ $access_token['type'] = $this->access_token_type;
+ }
+ else
+ $this->access_token_type = '';
+ if($refresh)
+ $response['refresh_token'] = $this->refresh_token;
+ elseif(IsSet($response['refresh_token']))
+ {
+ $this->refresh_token = $response['refresh_token'];
+ if($this->debug)
+ $this->OutputDebug('Refresh token: '.$this->refresh_token);
+ $access_token['refresh'] = $this->refresh_token;
+ }
+ else
+ $this->refresh_token = '';
+ if(!$this->StoreAccessToken($access_token))
+ return false;
+ return true;
+ }
+
+ Function RetrieveToken(&$valid)
+ {
+ $valid = false;
+ if(!$this->GetAccessToken($access_token))
+ return false;
+ if(IsSet($access_token['value']))
+ {
+ $this->access_token_expiry = '';
+ if(IsSet($access_token['expiry'])
+ && strcmp($this->access_token_expiry = $access_token['expiry'], gmstrftime('%Y-%m-%d %H:%M:%S')) < 0)
+ {
+ $this->access_token = '';
+ if($this->debug)
+ $this->OutputDebug('The OAuth access token expired in '.$this->access_token_expiry);
+ }
+ else
+ {
+ $this->access_token = $access_token['value'];
+ if(IsSet($access_token['type']))
+ $this->access_token_type = $access_token['type'];
+ else
+ $this->access_token_type = '';
+ if($this->debug)
+ $this->OutputDebug('The OAuth access token '.$this->access_token.' is valid');
+ if(strlen($this->access_token_type)
+ && $this->debug)
+ $this->OutputDebug('The OAuth access token is of type '.$this->access_token_type);
+ if(IsSet($access_token['refresh']))
+ $this->refresh_token = $access_token['refresh'];
+ else
+ $this->refresh_token = '';
+ $valid = true;
+ }
+ }
+ return true;
+ }
+/*
+{metadocument}
+ <function>
+ <name>CallAPI</name>
+ <type>BOOLEAN</type>
+ <documentation>
+ <purpose>Send a HTTP request to the Web services API using a
+ previously obtained authorization token via OAuth.</purpose>
+ <usage>This function can be used to call an API after having
+ previously obtained an access token through the OAuth protocol
+ using the <functionlink>Process</functionlink> function, or by
+ directly setting the variables
+ <variablelink>access_token</variablelink>, as well as
+ <variablelink>access_token_secret</variablelink> in case of using
+ OAuth 1.0 or 1.0a services.</usage>
+ <returnvalue>This function returns <booleanvalue>1</booleanvalue> if
+ the call was done successfully.</returnvalue>
+ </documentation>
+ <argument>
+ <name>url</name>
+ <type>STRING</type>
+ <documentation>
+ <purpose>URL of the API where the HTTP request will be sent.</purpose>
+ </documentation>
+ </argument>
+ <argument>
+ <name>method</name>
+ <type>STRING</type>
+ <documentation>
+ <purpose>HTTP method that will be used to send the request. It can
+ be <stringvalue>GET</stringvalue>,
+ <stringvalue>POST</stringvalue>,
+ <stringvalue>DELETE</stringvalue>, <stringvalue>PUT</stringvalue>,
+ etc..</purpose>
+ </documentation>
+ </argument>
+ <argument>
+ <name>parameters</name>
+ <type>HASH</type>
+ <documentation>
+ <purpose>Associative array with the names and values of the API
+ call request parameters.</purpose>
+ </documentation>
+ </argument>
+ <argument>
+ <name>options</name>
+ <type>HASH</type>
+ <documentation>
+ <purpose>Associative array with additional options to configure
+ the request. Currently it supports the following
+ options:<paragraphbreak />
+ <stringvalue>2Legged</stringvalue>: boolean option that
+ determines if the API request should be 2 legged. The default
+ value is <tt><booleanvalue>0</booleanvalue></tt>.<paragraphbreak />
+ <stringvalue>Accept</stringvalue>: content type value of the
+ Accept HTTP header to be sent in the API call HTTP request.
+ Some APIs require that a certain value be sent to specify
+ which version of the API is being called. The default value is
+ <stringvalue>*&#47;*</stringvalue>.<paragraphbreak />
+ <stringvalue>ConvertObjects</stringvalue>: boolean option that
+ determines if objects should be converted into arrays when the
+ response is returned in JSON format. The default value is
+ <booleanvalue>0</booleanvalue>.<paragraphbreak />
+ <stringvalue>FailOnAccessError</stringvalue>: boolean option
+ that determines if this functions should fail when the server
+ response status is not between 200 and 299. The default value
+ is <booleanvalue>0</booleanvalue>.<paragraphbreak />
+ <stringvalue>Files</stringvalue>: associative array with
+ details of the parameters that must be passed as file uploads.
+ The array indexes must have the same name of the parameters
+ to be sent as files. The respective array entry values must
+ also be associative arrays with the parameters for each file.
+ Currently it supports the following parameters:<paragraphbreak />
+ - <tt>Type</tt> - defines how the parameter value should be
+ treated. It can be <tt>'FileName'</tt> if the parameter value is
+ is the name of a local file to be uploaded. It may also be
+ <tt>'Data'</tt> if the parameter value is the actual data of
+ the file to be uploaded.<paragraphbreak />
+ - Default: <tt>'FileName'</tt><paragraphbreak />
+ - <tt>ContentType</tt> - MIME value of the content type of the
+ file. It can be <tt>'automatic/name'</tt> if the content type
+ should be determine from the file name extension.<paragraphbreak />
+ - Default: <tt>'automatic/name'</tt><paragraphbreak />
+ <stringvalue>PostValuesInURI</stringvalue>: boolean option to
+ determine that a POST request should pass the request values
+ in the URI. The default value is
+ <booleanvalue>0</booleanvalue>.<paragraphbreak />
+ <stringvalue>FollowRedirection</stringvalue>: limit number of
+ times that HTTP response redirects will be followed. If it is
+ set to <integervalue>0</integervalue>, redirection responses
+ fail in error. The default value is
+ <integervalue>0</integervalue>.<paragraphbreak />
+ <stringvalue>RequestBody</stringvalue>: request body data of a
+ custom type. The <stringvalue>RequestContentType</stringvalue>
+ option must be specified, so the
+ <stringvalue>RequestBody</stringvalue> option is considered.<paragraphbreak />
+ <stringvalue>RequestContentType</stringvalue>: content type that
+ should be used to send the request values. It can be either
+ <stringvalue>application/x-www-form-urlencoded</stringvalue>
+ for sending values like from Web forms, or
+ <stringvalue>application/json</stringvalue> for sending the
+ values encoded in JSON format. Other types are accepted if the
+ <stringvalue>RequestBody</stringvalue> option is specified.
+ The default value is
+ <stringvalue>application/x-www-form-urlencoded</stringvalue>.<paragraphbreak />
+ <stringvalue>RequestBody</stringvalue>: request body data of a
+ custom type. The <stringvalue>RequestContentType</stringvalue>
+ option must be specified, so the
+ <stringvalue>RequestBody</stringvalue> option is considered.<paragraphbreak />
+ <stringvalue>Resource</stringvalue>: string with a label that
+ will be used in the error messages and debug log entries to
+ identify what operation the request is performing. The default
+ value is <stringvalue>API call</stringvalue>.<paragraphbreak />
+ <stringvalue>ResponseContentType</stringvalue>: content type
+ that should be considered when decoding the API request
+ response. This overrides the <tt>Content-Type</tt> header
+ returned by the server. If the content type is
+ <stringvalue>application/x-www-form-urlencoded</stringvalue>
+ the function will parse the data returning an array of
+ key-value pairs. If the content type is
+ <stringvalue>application/json</stringvalue> the response will
+ be decode as a JSON-encoded data type. Other content type
+ values will make the function return the original response
+ value as it was returned from the server. The default value
+ for this option is to use what the server returned in the
+ <tt>Content-Type</tt> header.</purpose>
+ </documentation>
+ </argument>
+ <argument>
+ <name>response</name>
+ <type>STRING</type>
+ <out />
+ <documentation>
+ <purpose>Return the value of the API response. If the value is
+ JSON encoded, this function will decode it and return the value
+ converted to respective types. If the value is form encoded,
+ this function will decode the response and return it as an
+ array. Otherwise, the class will return the value as a
+ string.</purpose>
+ </documentation>
+ </argument>
+ <do>
+{/metadocument}
+*/
+ Function CallAPI($url, $method, $parameters, $options, &$response)
+ {
+ if(!IsSet($options['Resource']))
+ $options['Resource'] = 'API call';
+ if(!IsSet($options['ConvertObjects']))
+ $options['ConvertObjects'] = false;
+ if(strlen($this->access_token) === 0)
+ {
+ if(!$this->RetrieveToken($valid))
+ return false;
+ if(!$valid)
+ return $this->SetError('the access token is not set to a valid value');
+ }
+ switch(intval($this->oauth_version))
+ {
+ case 1:
+ $oauth = array(
+ 'oauth_token'=>((IsSet($options['2Legged']) && $options['2Legged']) ? '' : $this->access_token)
+ );
+ break;
+
+ case 2:
+ if(strlen($this->access_token_expiry)
+ && strcmp($this->access_token_expiry, gmstrftime('%Y-%m-%d %H:%M:%S')) <= 0)
+ {
+ if(strlen($this->refresh_token) === 0)
+ return($this->SetError('the access token expired and no refresh token is available'));
+ if($this->debug)
+ {
+ $this->OutputDebug('The access token expired on '.$this->access_token_expiry);
+ $this->OutputDebug('Refreshing the access token');
+ }
+ if(!$this->ProcessToken(null, true))
+ return false;
+ }
+ $oauth = null;
+ $url .= (strcspn($url, '?') < strlen($url) ? '&' : '?').'access_token='.UrlEncode($this->access_token);
+ break;
+
+ default:
+ return($this->SetError($this->oauth_version.' is not a supported version of the OAuth protocol'));
+ }
+ return($this->SendAPIRequest($url, $method, $parameters, $oauth, $options, $response));
+ }
+/*
+{metadocument}
+ </do>
+ </function>
+{/metadocument}
+*/
+
+/*
+{metadocument}
+ <function>
+ <name>Initialize</name>
+ <type>BOOLEAN</type>
+ <documentation>
+ <purpose>Initialize the class variables and internal state. It must
+ be called before calling other class functions.</purpose>
+ <usage>Set the <variablelink>server</variablelink> variable before
+ calling this function to let it initialize the class variables to
+ work with the specified server type. Alternatively, you can set
+ other class variables manually to make it work with servers that
+ are not yet built-in supported.</usage>
+ <returnvalue>This function returns <booleanvalue>1</booleanvalue> if
+ it was able to successfully initialize the class for the specified
+ server type.</returnvalue>
+ </documentation>
+ <do>
+{/metadocument}
+*/
+ Function Initialize()
+ {
+ if(strlen($this->server) === 0)
+ return true;
+ $this->request_token_url = '';
+ $this->append_state_to_redirect_uri = '';
+ $this->authorization_header = true;
+ $this->url_parameters = false;
+ $this->token_request_method = 'GET';
+ $this->signature_method = 'HMAC-SHA1';
+ switch($this->server)
+ {
+ case 'Bitbucket':
+ $this->oauth_version = '1.0a';
+ $this->request_token_url = 'https://bitbucket.org/!api/1.0/oauth/request_token';
+ $this->dialog_url = 'https://bitbucket.org/!api/1.0/oauth/authenticate';
+ $this->access_token_url = 'https://bitbucket.org/!api/1.0/oauth/access_token';
+ $this->url_parameters = true;
+ break;
+
+ case 'Box':
+ $this->oauth_version = '2.0';
+ $this->dialog_url = 'https://www.box.com/api/oauth2/authorize?response_type=code&client_id={CLIENT_ID}&redirect_uri={REDIRECT_URI}&state={STATE}';
+ $this->offline_dialog_url = 'https://www.box.com/api/oauth2/authorize?response_type=code&client_id={CLIENT_ID}&redirect_uri={REDIRECT_URI}&state={STATE}&access_type=offline&approval_prompt=force';
+ $this->access_token_url = 'https://www.box.com/api/oauth2/token';
+ break;
+
+ case 'Dropbox':
+ $this->oauth_version = '1.0';
+ $this->request_token_url = 'https://api.dropbox.com/1/oauth/request_token';
+ $this->dialog_url = 'https://www.dropbox.com/1/oauth/authorize';
+ $this->access_token_url = 'https://api.dropbox.com/1/oauth/access_token';
+ $this->authorization_header = false;
+ break;
+
+ case 'Eventful':
+ $this->oauth_version = '1.0a';
+ $this->request_token_url = 'http://eventful.com/oauth/request_token';
+ $this->dialog_url = 'http://eventful.com/oauth/authorize';
+ $this->access_token_url = 'http://eventful.com/oauth/access_token';
+ $this->authorization_header = false;
+ $this->url_parameters = true;
+ $this->token_request_method = 'POST';
+ break;
+
+ case 'Evernote':
+ $this->oauth_version = '1.0a';
+ $this->request_token_url = 'https://sandbox.evernote.com/oauth';
+ $this->dialog_url = 'https://sandbox.evernote.com/OAuth.action';
+ $this->access_token_url = 'https://sandbox.evernote.com/oauth';
+ $this->url_parameters = true;
+ $this->authorization_header = false;
+ break;
+
+ case 'Facebook':
+ $this->oauth_version = '2.0';
+ $this->dialog_url = 'https://www.facebook.com/dialog/oauth?client_id={CLIENT_ID}&redirect_uri={REDIRECT_URI}&scope={SCOPE}&state={STATE}';
+ $this->access_token_url = 'https://graph.facebook.com/oauth/access_token';
+ break;
+
+ case 'Fitbit':
+ $this->oauth_version = '1.0a';
+ $this->request_token_url = 'http://api.fitbit.com/oauth/request_token';
+ $this->dialog_url = 'http://api.fitbit.com/oauth/authorize';
+ $this->access_token_url = 'http://api.fitbit.com/oauth/access_token';
+ break;
+
+ case 'Flickr':
+ $this->oauth_version = '1.0a';
+ $this->request_token_url = 'http://www.flickr.com/services/oauth/request_token';
+ $this->dialog_url = 'http://www.flickr.com/services/oauth/authorize?perms={SCOPE}';
+ $this->access_token_url = 'http://www.flickr.com/services/oauth/access_token';
+ $this->authorization_header = false;
+ break;
+
+ case 'Foursquare':
+ $this->oauth_version = '2.0';
+ $this->dialog_url = 'https://foursquare.com/oauth2/authorize?client_id={CLIENT_ID}&scope={SCOPE}&response_type=code&redirect_uri={REDIRECT_URI}&state={STATE}';
+ $this->access_token_url = 'https://foursquare.com/oauth2/access_token';
+ break;
+
+ case 'github':
+ $this->oauth_version = '2.0';
+ $this->dialog_url = 'https://github.com/login/oauth/authorize?client_id={CLIENT_ID}&redirect_uri={REDIRECT_URI}&scope={SCOPE}&state={STATE}';
+ $this->access_token_url = 'https://github.com/login/oauth/access_token';
+ break;
+
+ case 'Google':
+ $this->oauth_version = '2.0';
+ $this->dialog_url = 'https://accounts.google.com/o/oauth2/auth?response_type=code&client_id={CLIENT_ID}&redirect_uri={REDIRECT_URI}&scope={SCOPE}&state={STATE}';
+ $this->offline_dialog_url = 'https://accounts.google.com/o/oauth2/auth?response_type=code&client_id={CLIENT_ID}&redirect_uri={REDIRECT_URI}&scope={SCOPE}&state={STATE}&access_type=offline&approval_prompt=force';
+ $this->access_token_url = 'https://accounts.google.com/o/oauth2/token';
+ break;
+
+ case 'Instagram':
+ $this->oauth_version = '2.0';
+ $this->dialog_url ='https://api.instagram.com/oauth/authorize/?client_id={CLIENT_ID}&redirect_uri={REDIRECT_URI}&scope={SCOPE}&response_type=code&state={STATE}';
+ $this->access_token_url = 'https://api.instagram.com/oauth/access_token';
+ break;
+
+ case 'LinkedIn':
+ $this->oauth_version = '1.0a';
+ $this->request_token_url = 'https://api.linkedin.com/uas/oauth/requestToken?scope={SCOPE}';
+ $this->dialog_url = 'https://api.linkedin.com/uas/oauth/authenticate';
+ $this->access_token_url = 'https://api.linkedin.com/uas/oauth/accessToken';
+ $this->url_parameters = true;
+ break;
+
+ case 'Microsoft':
+ $this->oauth_version = '2.0';
+ $this->dialog_url = 'https://login.live.com/oauth20_authorize.srf?client_id={CLIENT_ID}&scope={SCOPE}&response_type=code&redirect_uri={REDIRECT_URI}&state={STATE}';
+ $this->access_token_url = 'https://login.live.com/oauth20_token.srf';
+ break;
+
+ case 'RightSignature':
+ $this->oauth_version = '1.0a';
+ $this->request_token_url = 'https://rightsignature.com/oauth/request_token';
+ $this->dialog_url = 'https://rightsignature.com/oauth/authorize';
+ $this->access_token_url = 'https://rightsignature.com/oauth/access_token';
+ $this->authorization_header = false;
+ break;
+
+ case 'Scoop.it':
+ $this->oauth_version = '1.0a';
+ $this->request_token_url = 'https://www.scoop.it/oauth/request';
+ $this->dialog_url = 'https://www.scoop.it/oauth/authorize';
+ $this->access_token_url = 'https://www.scoop.it/oauth/access';
+ $this->authorization_header = false;
+ break;
+
+ case 'StockTwits':
+ $this->oauth_version = '2.0';
+ $this->dialog_url = 'https://api.stocktwits.com/api/2/oauth/authorize?client_id={CLIENT_ID}&response_type=code&redirect_uri={REDIRECT_URI}&scope={SCOPE}&state={STATE}';
+ $this->access_token_url = 'https://api.stocktwits.com/api/2/oauth/token';
+ break;
+
+ case 'Tumblr':
+ $this->oauth_version = '1.0a';
+ $this->request_token_url = 'http://www.tumblr.com/oauth/request_token';
+ $this->dialog_url = 'http://www.tumblr.com/oauth/authorize';
+ $this->access_token_url = 'http://www.tumblr.com/oauth/access_token';
+ break;
+
+ case 'Twitter':
+ $this->oauth_version = '1.0a';
+ $this->request_token_url = 'https://api.twitter.com/oauth/request_token';
+ $this->dialog_url = 'https://api.twitter.com/oauth/authenticate';
+ $this->access_token_url = 'https://api.twitter.com/oauth/access_token';
+ $this->url_parameters = true;
+ break;
+
+ case 'XING':
+ $this->oauth_version = '1.0a';
+ $this->request_token_url = 'https://api.xing.com/v1/request_token';
+ $this->dialog_url = 'https://api.xing.com/v1/authorize';
+ $this->access_token_url = 'https://api.xing.com/v1/access_token';
+ $this->authorization_header = false;
+ break;
+
+ case 'Yahoo':
+ $this->oauth_version = '1.0a';
+ $this->request_token_url = 'https://api.login.yahoo.com/oauth/v2/get_request_token';
+ $this->dialog_url = 'https://api.login.yahoo.com/oauth/v2/request_auth';
+ $this->access_token_url = 'https://api.login.yahoo.com/oauth/v2/get_token';
+ $this->authorization_header = false;
+ break;
+
+ default:
+ return($this->SetError($this->server.' is not yet a supported type of OAuth server. Please contact the author Manuel Lemos <mlemos@acm.org> to request adding built-in support to this type of OAuth server.'));
+ }
+ return(true);
+ }
+/*
+{metadocument}
+ </do>
+ </function>
+{/metadocument}
+*/
+
+/*
+{metadocument}
+ <function>
+ <name>Process</name>
+ <type>BOOLEAN</type>
+ <documentation>
+ <purpose>Process the OAuth protocol interaction with the OAuth
+ server.</purpose>
+ <usage>Call this function when you need to retrieve the OAuth access
+ token. Check the <variablelink>access_token</variablelink> to
+ determine if the access token was obtained successfully.</usage>
+ <returnvalue>This function returns <booleanvalue>1</booleanvalue> if
+ the OAuth protocol was processed without errors.</returnvalue>
+ </documentation>
+ <do>
+{/metadocument}
+*/
+ Function Process()
+ {
+ switch(intval($this->oauth_version))
+ {
+ case 1:
+ $one_a = ($this->oauth_version === '1.0a');
+ if($this->debug)
+ $this->OutputDebug('Checking the OAuth token authorization state');
+ if(!$this->GetAccessToken($access_token))
+ return false;
+ if(IsSet($access_token['authorized'])
+ && IsSet($access_token['value']))
+ {
+ $expired = (IsSet($access_token['expiry']) && strcmp($access_token['expiry'], gmstrftime('%Y-%m-%d %H:%M:%S')) <= 0);
+ if(!$access_token['authorized']
+ || $expired)
+ {
+ if($this->debug)
+ {
+ if($expired)
+ $this->OutputDebug('The OAuth token expired on '.$access_token['expiry'].'UTC');
+ else
+ $this->OutputDebug('The OAuth token is not yet authorized');
+ $this->OutputDebug('Checking the OAuth token and verifier');
+ }
+ if(!$this->GetRequestToken($token, $verifier))
+ return false;
+ if(!IsSet($token)
+ || ($one_a
+ && !IsSet($verifier)))
+ {
+ if(!$this->GetRequestDenied($denied))
+ return false;
+ if(IsSet($denied)
+ && $denied === $access_token['value'])
+ {
+ if($this->debug)
+ $this->OutputDebug('The authorization request was denied');
+ $this->authorization_error = 'the request was denied';
+ return true;
+ }
+ else
+ {
+ if($this->debug)
+ $this->OutputDebug('Reset the OAuth token state because token and verifier are not both set');
+ $access_token = array();
+ }
+ }
+ elseif($token !== $access_token['value'])
+ {
+ if($this->debug)
+ $this->OutputDebug('Reset the OAuth token state because token does not match what as previously retrieved');
+ $access_token = array();
+ }
+ else
+ {
+ if(!$this->GetAccessTokenURL($url))
+ return false;
+ $oauth = array(
+ 'oauth_token'=>$token,
+ );
+ if($one_a)
+ $oauth['oauth_verifier'] = $verifier;
+ $this->access_token_secret = $access_token['secret'];
+ $options = array('Resource'=>'OAuth access token');
+ $method = strtoupper($this->token_request_method);
+ switch($method)
+ {
+ case 'GET':
+ break;
+ case 'POST':
+ $options['PostValuesInURI'] = true;
+ break;
+ default:
+ $this->error = $method.' is not a supported method to request tokens';
+ break;
+ }
+ if(!$this->SendAPIRequest($url, $method, array(), $oauth, $options, $response))
+ return false;
+ if(strlen($this->access_token_error))
+ {
+ $this->authorization_error = $this->access_token_error;
+ return true;
+ }
+ if(!IsSet($response['oauth_token'])
+ || !IsSet($response['oauth_token_secret']))
+ {
+ $this->authorization_error= 'it was not returned the access token and secret';
+ return true;
+ }
+ $access_token = array(
+ 'value'=>$response['oauth_token'],
+ 'secret'=>$response['oauth_token_secret'],
+ 'authorized'=>true
+ );
+ if(IsSet($response['oauth_expires_in']))
+ {
+ $expires = $response['oauth_expires_in'];
+ if(strval($expires) !== strval(intval($expires))
+ || $expires <= 0)
+ return($this->SetError('OAuth server did not return a supported type of access token expiry time'));
+ $this->access_token_expiry = gmstrftime('%Y-%m-%d %H:%M:%S', time() + $expires);
+ if($this->debug)
+ $this->OutputDebug('Access token expiry: '.$this->access_token_expiry.' UTC');
+ $access_token['expiry'] = $this->access_token_expiry;
+ }
+ else
+ $this->access_token_expiry = '';
+
+ if(!$this->StoreAccessToken($access_token))
+ return false;
+ if($this->debug)
+ $this->OutputDebug('The OAuth token was authorized');
+ }
+ }
+ elseif($this->debug)
+ $this->OutputDebug('The OAuth token was already authorized');
+ if(IsSet($access_token['authorized'])
+ && $access_token['authorized'])
+ {
+ $this->access_token = $access_token['value'];
+ $this->access_token_secret = $access_token['secret'];
+ return true;
+ }
+ }
+ else
+ {
+ if($this->debug)
+ $this->OutputDebug('The OAuth access token is not set');
+ $access_token = array();
+ }
+ if(!IsSet($access_token['authorized']))
+ {
+ if($this->debug)
+ $this->OutputDebug('Requesting the unauthorized OAuth token');
+ if(!$this->GetRequestTokenURL($url))
+ return false;
+ $url = str_replace('{SCOPE}', UrlEncode($this->scope), $url);
+ if(!$this->GetRedirectURI($redirect_uri))
+ return false;
+ $oauth = array(
+ 'oauth_callback'=>$redirect_uri,
+ );
+ $options = array('Resource'=>'OAuth request token');
+ $method = strtoupper($this->token_request_method);
+ switch($method)
+ {
+ case 'GET':
+ break;
+ case 'POST':
+ $options['PostValuesInURI'] = true;
+ break;
+ default:
+ $this->error = $method.' is not a supported method to request tokens';
+ break;
+ }
+ if(!$this->SendAPIRequest($url, $method, array(), $oauth, $options, $response))
+ return false;
+ if(strlen($this->access_token_error))
+ {
+ $this->authorization_error = $this->access_token_error;
+ return true;
+ }
+ if(!IsSet($response['oauth_token'])
+ || !IsSet($response['oauth_token_secret']))
+ {
+ $this->authorization_error = 'it was not returned the requested token';
+ return true;
+ }
+ $access_token = array(
+ 'value'=>$response['oauth_token'],
+ 'secret'=>$response['oauth_token_secret'],
+ 'authorized'=>false
+ );
+ if(!$this->StoreAccessToken($access_token))
+ return false;
+ }
+ if(!$this->GetDialogURL($url))
+ return false;
+ $url .= (strpos($url, '?') === false ? '?' : '&').'oauth_token='.$access_token['value'];
+ if(!$one_a)
+ {
+ if(!$this->GetRedirectURI($redirect_uri))
+ return false;
+ $url .= '&oauth_callback='.UrlEncode($redirect_uri);
+ }
+ if($this->debug)
+ $this->OutputDebug('Redirecting to OAuth authorize page '.$url);
+ Header('HTTP/1.0 302 OAuth Redirection');
+ Header('Location: '.$url);
+ $this->exit = true;
+ return true;
+
+ case 2:
+ if($this->debug)
+ $this->OutputDebug('Checking if OAuth access token was already retrieved from '.$this->access_token_url);
+ if(!$this->RetrieveToken($valid))
+ return false;
+ if($valid)
+ return true;
+ if($this->debug)
+ $this->OutputDebug('Checking the authentication state in URI '.$_SERVER['REQUEST_URI']);
+ if(!$this->GetStoredState($stored_state))
+ return false;
+ if(strlen($stored_state) == 0)
+ return($this->SetError('it was not set the OAuth state'));
+ if(!$this->GetRequestState($state))
+ return false;
+ if($state === $stored_state)
+ {
+ if($this->debug)
+ $this->OutputDebug('Checking the authentication code');
+ if(!$this->GetRequestCode($code))
+ return false;
+ if(strlen($code) == 0)
+ {
+ if(!$this->GetRequestError($this->authorization_error))
+ return false;
+ if(IsSet($this->authorization_error))
+ {
+ if($this->debug)
+ $this->OutputDebug('Authorization failed with error code '.$this->authorization_error);
+ switch($this->authorization_error)
+ {
+ case 'invalid_request':
+ case 'unauthorized_client':
+ case 'access_denied':
+ case 'unsupported_response_type':
+ case 'invalid_scope':
+ case 'server_error':
+ case 'temporarily_unavailable':
+ case 'user_denied':
+ return true;
+ default:
+ return($this->SetError('it was returned an unknown OAuth error code'));
+ }
+ }
+ return($this->SetError('it was not returned the OAuth dialog code'));
+ }
+ if(!$this->ProcessToken($code, false))
+ return false;
+ }
+ else
+ {
+ if(!$this->GetRedirectURI($redirect_uri))
+ return false;
+ if(strlen($this->append_state_to_redirect_uri))
+ $redirect_uri .= (strpos($redirect_uri, '?') === false ? '?' : '&').$this->append_state_to_redirect_uri.'='.$stored_state;
+ if(!$this->GetDialogURL($url, $redirect_uri, $stored_state))
+ return false;
+ if(strlen($url) == 0)
+ return($this->SetError('it was not set the OAuth dialog URL'));
+ if($this->debug)
+ $this->OutputDebug('Redirecting to OAuth Dialog '.$url);
+ Header('HTTP/1.0 302 OAuth Redirection');
+ Header('Location: '.$url);
+ $this->exit = true;
+ }
+ break;
+
+ default:
+ return($this->SetError($this->oauth_version.' is not a supported version of the OAuth protocol'));
+ }
+ return(true);
+ }
+/*
+{metadocument}
+ </do>
+ </function>
+{/metadocument}
+*/
+
+/*
+{metadocument}
+ <function>
+ <name>Finalize</name>
+ <type>BOOLEAN</type>
+ <documentation>
+ <purpose>Cleanup any resources that may have been used during the
+ OAuth protocol processing or execution of API calls.</purpose>
+ <usage>Always call this function as the last step after calling the
+ functions <functionlink>Process</functionlink> or
+ <functionlink>CallAPI</functionlink>.</usage>
+ <returnvalue>This function returns <booleanvalue>1</booleanvalue> if
+ the function cleaned up any resources successfully.</returnvalue>
+ </documentation>
+ <argument>
+ <name>success</name>
+ <type>BOOLEAN</type>
+ <documentation>
+ <purpose>Pass the last success state returned by the class or any
+ external code processing the class function results.</purpose>
+ </documentation>
+ </argument>
+ <do>
+{/metadocument}
+*/
+ Function Finalize($success)
+ {
+ return($success);
+ }
+/*
+{metadocument}
+ </do>
+ </function>
+{/metadocument}
+*/
+
+/*
+{metadocument}
+ <function>
+ <name>Output</name>
+ <type>VOID</type>
+ <documentation>
+ <purpose>Display the results of the OAuth protocol processing.</purpose>
+ <usage>Only call this function if you are debugging the OAuth
+ authorization process and you need to view what was its
+ results.</usage>
+ </documentation>
+ <do>
+{/metadocument}
+*/
+ Function Output()
+ {
+ if(strlen($this->authorization_error)
+ || strlen($this->access_token_error)
+ || strlen($this->access_token))
+ {
+?>
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
+<html>
+<head>
+<title>OAuth client result</title>
+</head>
+<body>
+<h1>OAuth client result</h1>
+<?php
+ if(strlen($this->authorization_error))
+ {
+?>
+<p>It was not possible to authorize the application.<?php
+ if($this->debug)
+ {
+?>
+<br>Authorization error: <?php echo HtmlSpecialChars($this->authorization_error);
+ }
+?></p>
+<?php
+ }
+ elseif(strlen($this->access_token_error))
+ {
+?>
+<p>It was not possible to use the application access token.
+<?php
+ if($this->debug)
+ {
+?>
+<br>Error: <?php echo HtmlSpecialChars($this->access_token_error);
+ }
+?></p>
+<?php
+ }
+ elseif(strlen($this->access_token))
+ {
+?>
+<p>The application authorization was obtained successfully.
+<?php
+ if($this->debug)
+ {
+?>
+<br>Access token: <?php echo HtmlSpecialChars($this->access_token);
+ if(IsSet($this->access_token_secret))
+ {
+?>
+<br>Access token secret: <?php echo HtmlSpecialChars($this->access_token_secret);
+ }
+ }
+?></p>
+<?php
+ if(strlen($this->access_token_expiry))
+ {
+?>
+<p>Access token expiry: <?php echo $this->access_token_expiry; ?> UTC</p>
+<?php
+ }
+ }
+?>
+</body>
+</html>
+<?php
+ }
+ }
+/*
+{metadocument}
+ </do>
+ </function>
+{/metadocument}
+*/
+
+};
+
+/*
+
+{metadocument}
+</class>
+{/metadocument}
+
+*/
+
+?> \ No newline at end of file
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-09 23:13:04 +0000