studio2011 initial commit

wp-content/plugins/twitter-feed/twitterScript.php

@@ -0,0 +1,175 @@
+<?php
+
+/**
+ * twitterScriptMain 
+ *
+ * retrieves Twitter blog data from the Twitter website and stores it in the local Wordpress database
+ *
+ * 
+ * @access public
+ * @returns boolean true = successful, false = some error occured
+ */
+
+require_once dirname( __FILE__ ) . '/includeTwitter.php';
+require_once dirname( __FILE__ ) . '/../../../wp-config.php';
+
+function twitterScriptMain()
+{
+	// start: check for existance of the curl library
+
+	if ( !function_exists( 'curl_init' ) )
+	{
+		echo 'Warning: The php curl library is missing. 
+		      Please check you have the curl library installed.';
+
+		return false;
+	}
+
+	$strUserIdsForScript = get_option( TWITTER_USER_IDS );
+
+	$strShowAtUsername = get_option( TWITTER_SHOW_AT_USERNAME );
+
+	if ( 'checked' == $strShowAtUsername )
+	{
+		$bolShowAtUsername = true;
+	}
+	else
+	{
+		$bolShowAtUsername = false;
+	}
+
+	// start: check that all returned values have been set
+
+	if ( false == $strUserIdsForScript || false == $strShowAtUsername )
+	{
+		echo 'Key values have not been set. 
+			Please visit the admin control pannel and enter the required values.';
+
+		return false;
+	}
+
+	// end: check that all returned values have been set
+	
+	$arrNames = explode( ',', $strUserIdsForScript );
+
+	$bolWriteToFile = true;
+
+	$arrSaveData = array();
+
+	$arrResponse = array();
+
+	$intIndex = 0;
+
+	foreach ( $arrNames as $strElement )
+	{
+		if ( preg_match( TWITTER_USERNAME_REGEX, $strElement ) )
+		{
+			$strResponse = fetchXML( $strElement );
+
+			if( false == $strResponse )
+			{
+				return false;
+			}
+
+			$strXMLFormat = substr( $strResponse, 2, 34 );
+
+			// start: check the returned data is in an xml format
+
+			if ( 'xml version="1.0" encoding="UTF-8"' != $strXMLFormat )
+			{
+				echo 'Oops, the Twitter site appears to be down at the moment. 
+					Please try again later.'."\n";
+
+				return false;
+
+			}
+			// end: check the returned data is in an xml format
+
+			// start: retrieve data from the xml data structure
+
+			try
+			{
+				$objXml = new SimpleXMLElement( $strResponse );
+
+				if ( $objXml->hash->error == 'User not found' )
+				{
+					$arrResponse[$intIndex] = null;
+				}
+				else
+				{
+					foreach ( $objXml->status as $status )
+					{
+						if ( ( false == $bolShowAtUsername && 
+                               '@' != substr( $status->text, 0, 1 ) ) || 
+						     ( true ==  $bolShowAtUsername ) 
+						   )
+						{
+							$arrResponse[$intIndex] = array('tweet' => (string) $status->text,
+							                                'name' => (string) $status->user->screen_name,
+							                                'avatar' => (string) $status->user->profile_image_url,
+							                                'date' => (string) strtotime( $status->created_at )
+							                               );
+							break;
+						}
+					}
+				}
+			}
+
+			// end: retrieve data from the xml data structure
+
+			catch( Exception $e )
+			{
+				echo 'Oops, the Twitter site appears to be down at the moment. 
+				Please try again later. Error: '.$e."\n";
+
+				return false;
+			}
+
+		}
+		else
+		{
+			echo 'One or more Tweets have been disabled for XSS security reasons.'."\n";
+
+			return false;
+		}
+
+		$intIndex++;
+	}
+
+	update_option( TWITTER_USER_DATA, $arrResponse );
+
+	return true;
+
+} // end: MAIN FUNCTION
+
+function fetchXML( $strElement )
+{
+	$strUrl = 'http://twitter.com/statuses/user_timeline/'.$strElement.'.xml';
+			
+	$resCurl = curl_init( $strUrl );
+
+	if ( false == $resCurl )
+	{
+		echo 'Twitter Curl Function failed to initialise.';
+		return false;
+	}
+
+	curl_setopt( $resCurl, CURLOPT_RETURNTRANSFER, true );
+	curl_setopt( $resCurl, CURLOPT_HEADER, false );
+	curl_setopt( $resCurl, CURLOPT_CONNECTTIMEOUT, 3 );
+	curl_setopt( $resCurl, CURLOPT_TIMEOUT, 300 );
+	$strRsp = curl_exec( $resCurl );
+
+	if ( false == $strRsp )
+	{
+		$strError = curl_error( $resCurl );
+		echo 'Twitter Curl Function failed to execute: '.$strError;
+		return false;
+	}
+
+	curl_close( $resCurl );
+
+	return $strRsp;
+}
+
+?>