Convert the scripts to use the new ArrayObject for generating CAP Alert

scripts/exportCAPAlert.php

 <?php
 require_once dirname(__FILE__).'/../config.inc.php';
+require_once 'functions.inc.php';
 
-function exportCAPAlert()
-{
+$output = getCAPData();
+file_put_contents(dirname(__FILE__).'/../www/xml/unlcap.xml', $output->toXML('alert', 'urn:oasis:names:tc:emergency:cap:1.2'));
 
-	$output =	'<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
-<alert xmlns:cap="http://www.incident.com/cap/1.0">
-    <identifier>University of Nebraska-Lincoln '.date('Y-m-d\TH:i:sO').'</identifier>
-    <sender>police.unl.edu</sender>
-    <sent>'.date('Y-m-d\TH:i:sO').'</sent>
-    <status>Actual</status>
-    <msgType>Alert</msgType>
-    <scope>Public</scope>
-    <note>
-    Current Watches, Warnings and Advisories for UNL Issued by University Police
-    </note>
-    <references>
-    	http://www.unl.edu/
-    </references>';
-	try {
-    	// Get the RSS feed
-        $alerts = new UNL_Alert_TwitterAlert();
-
-        // Create the filter
-        $filtered = new UNL_Alert_RecentPubDateFilter($alerts);
-    	foreach ($filtered as $item) {
-            $effective = DateTime::createFromFormat('U', strtotime($item->created_at));
-            $effective->setTimezone(new DateTimeZone(date_default_timezone_get())); 
-    		$output .=	'
-		<info>
-			<category>Safety</category>
-			<event>University of Nebraska-Lincoln Alert</event>
-			<urgency>Immediate</urgency>
-			<severity>Extreme</severity>
-			<certainty>Likely</certainty>
-			<headline>UNL ALERT</headline>
-			<description>'.$item->text.'</description>
-			<effective>'.date('Y-m-d\TH:i:sO', $effective->getTimestamp()).'</effective>
-			<web>http://www.unl.edu/</web>
-			<parameter>
-			    <valueName>id</valueName>
-			    <value>'.md5($item->id).'</value>
-		    </parameter>
-			<area>
-				<areaDesc>Lincoln (Nebraska)</areaDesc>
-				<geocode>031111</geocode>
-			</area>
-		</info>';
-    	}
-	} catch (Exception $e) {
-	   echo $e;
-	}
-	$output .=	PHP_EOL.'</alert>'.PHP_EOL;
-	return $output;
-}
-$xmlCAP = exportCAPAlert();
-
-file_put_contents(dirname(__FILE__).'/../www/xml/unlcap.xml', $xmlCAP);
-
-require dirname(__FILE__).'/exportJSONAlert.php';
+include dirname(__FILE__).'/exportJSONAlert.php';

scripts/exportJSONAlert.php

 <?php
 
-require_once dirname(__FILE__).'/../src/xml2json/xml2json.php';
+require_once dirname(__FILE__).'/../config.inc.php';
+require_once 'functions.inc.php';
 
-$file = dirname(__FILE__).'/../www/xml/unlcap.xml';
+if (!isset($output)) {
+    $output = getCAPData();
+}
 
-//Read the XML alert info from the file.
-file_exists($file) or die('Could not find file ');
-$xmlStringContents = file_get_contents($file); 
-$jsonContents = '';
-$nl = "\n";
-// Convert it to JSON now. 
-// xml2json simply takes a String containing XML contents as input.
-$jsonContents = xml2json::transformXmlStringToJson($xmlStringContents);
+$jsonContents = $output->toJSON('alert');
 
-$jsonContents = 'unlAlerts.data = '.$jsonContents.$nl;
+$jsonContents = 'unlAlerts.data = ' . $jsonContents . "\n";
 
 $jsonContents .= 'try {
 unlAlerts.server.init();
-} catch(e) {}'.$nl;
+} catch(e) {}'."\n";
 
 file_put_contents(dirname(__FILE__).'/../www/json/unlcap.js', $jsonContents);

scripts/functions.inc.php

+<?php
+
+function getCAPData()
+{
+    try {
+        $alerts = new UNL_Alert_RaveRSS('http://www.getrave.com/rss/unl/channel1');
+        $filtered = new UNL_Alert_RecentPubDateFilter($alerts->getIterator());
+        
+        $filtered->rewind();
+        if ($filtered->valid()) {
+            $item = $filtered->current();
+            $isTest = false;
+            if (stripos($item->description, 'test')) {
+                $isTest = true;
+            }
+
+            $output = array(
+                'identifier' => md5((string) $item->children('dc', true)->date),
+                'sender' => 'police.unl.edu',
+                'sent' => (new DateTime((string) $item->children('dc', true)->date))->format(DateTime::ATOM),
+                'status' => $isTest ? 'Test' : 'Actual',
+                'msgType' => 'Alert',
+                'scope' => 'Public',
+            );
+
+            if ($isTest) {
+                $output['note'] = 'This is only a test';
+            }
+
+            $output['info'] = array();
+
+            foreach ($filtered as $item) {
+                $output['info'][] = array(
+                    'category' => 'Safety',
+                    'event' => 'UNL Alert',
+                    'ugency' => 'Immediate',
+                    'severity' => 'Extreme',
+                    'certainty' => 'Observed',
+                    'headline' => (string) $item->title,
+                    'description' => (string) $item->description,
+                    'web' => 'http://www.unl.edu/',
+                );
+            }
+        } else {
+            $output = array();
+        }
+    } catch (Exception $e) {
+        $output = array();
+    }
+
+    return new UNL_Alert_ArrayObject($output);
+}