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diff --git a/lib/Kolab/FreeBusy/Source.php b/lib/Kolab/FreeBusy/Source.php
index 1af5ba3..53c4d0f 100644
--- a/lib/Kolab/FreeBusy/Source.php
+++ b/lib/Kolab/FreeBusy/Source.php
@@ -1,65 +1,66 @@
<?php
namespace Kolab\FreeBusy;
/**
* Abstract class to fetch free/busy data from a specific source
*/
abstract class Source
{
protected $config = array();
/**
* Factory method creating an instace of Source according to config
*
* @param array Hash array with config
*/
public static function factory($url)
{
$config = parse_url($url);
+ $config['url'] = $url;
switch ($config['scheme']) {
case 'file': return new SourceFile($config);
case 'imap': return new SourceIMAP($config);
case 'http':
- case 'https': return new SourceURL($url);
+ case 'https': return new SourceURL($config);
}
trigger_error("Invalid source configuration: " . $url, E_USER_ERROR);
return null;
}
/**
* Default constructor
*/
public function __construct($config)
{
$this->config = $config;
}
/**
* Retrieve free/busy data for the given user
*
* @param array Hash array with user attributes
*/
abstract public function getFreeBusyData($user, $extended);
/**
* Replace all %varname strings in config with values from $user
*/
protected function getUserConfig($user)
{
$config = array();
foreach ($this->config as $k => $val) {
if (is_string($val) && strpos($val, '%') !== false) {
$val = preg_replace_callback(
'/%\{?([a-z0-9]+)\}?/',
function($m) use ($user) { return $user[$m[1]]; },
$val);
}
$config[$k] = $val;
}
return $config;
}
}
\ No newline at end of file
diff --git a/lib/Kolab/FreeBusy/SourceURL.php b/lib/Kolab/FreeBusy/SourceURL.php
index 1051dbf..d165bd5 100644
--- a/lib/Kolab/FreeBusy/SourceURL.php
+++ b/lib/Kolab/FreeBusy/SourceURL.php
@@ -1,19 +1,52 @@
<?php
namespace Kolab\FreeBusy;
/**
- *
+ * Implementation of a Free/Busy data source reading from remote URLs through HTTP
*/
class SourceURL extends Source
{
/**
* @see Source::getFreeBusyData()
*/
public function getFreeBusyData($user, $extended)
{
$config = $this->getUserConfig($user);
- // TODO: implement this
+ // prepare HTTP stream context
+ $context = stream_context_create(array(
+ 'http' => array(
+ 'user_agent' => "Kolab Free-Busy Service/0.1.0",
+ 'timeout' => 10,
+ ),
+ ));
+
+ // set HTTP auth credentials
+ if (!empty($config['user'])) {
+ stream_context_set_option($context, array(
+ 'http' => array(
+ 'header' => "Authorization: Basic " . base64_encode($config['user'] . ':' . $config['pass']) . "\r\n",
+ ),
+ ));
+ $config['url'] = self::getUrl($config); // re-compose url without user:pass
+ }
+
+ // TODO: so some logging
+
+ return file_get_contents($config['url'], false, $context);
+ }
+
+ /**
+ * Compose a full url from the given config (previously extracted with parse_url())
+ */
+ private static function getUrl($config)
+ {
+ $scheme = isset($config['scheme']) ? $config['scheme'] . '://' : '';
+ $host = isset($config['host']) ? $config['host'] : '';
+ $port = isset($config['port']) ? ':' . $config['port'] : '';
+ $path = isset($config['path']) ? $config['path'] : '';
+ $query = isset($config['query']) ? '?' . $config['query'] : '';
+ return $scheme . $host . $port . $path . $query;
}
}

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