From ced5bfa06c5003ca03d17838c59e7bc4290c2d4d Mon Sep 17 00:00:00 2001
From: Christian Schneider
Date: Fri, 9 Dec 2011 16:45:14 +0000
Subject: Added parameter $p["returnheaders"] => true to return array($path,
 $headers) for url instead of only $path

---
 it_url.class | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/it_url.class b/it_url.class
index da6f033..cf7f45a 100644
--- a/it_url.class
+++ b/it_url.class
@@ -459,6 +459,7 @@ function get_cache_filename($p)
  * @param $p['preprocess']  callback function (or array for methods) to change received file or array('function' => ..., 'in' => $src, 'out' => $dst, ...) with callback function plus args
  * @param $p['safety']      value 0 means dont generate alert, value 1 means generate alerts on timeouts and failures
  * @param $p['keepfailed']  keep old versions of files if download fails (sending alerts conservatively)
+ * @param $p['returnheaders'] Return array($path, $headers) instead of simply $path
  * @param $p['it_error']    parameters for it::error()
  */
 function get_cache($p = array())
@@ -485,8 +486,13 @@ function get_cache($p = array())
 				touch($path);
 
 			EDC('getcache', "new", $filemtime, $p['url'], $path);
-			if ($result = it_url::get($p + array('filemtime' => EDC('nocache') ? null : $filemtime)))	# => true means not modified (no new data fetched)
+			$url = new it_url;
+			if ($result = $url->get($p + array('filemtime' => EDC('nocache') ? null : $filemtime)))	# => true means not modified (no new data fetched)
+			{
 				$newfile = it_url::_atomicwrite($path, $result);
+				if ($p['returnheaders'])
+					file_put_contents("$path.headers", '<?php return ' . var_export($url->headers, true) . ";\n");
+			}
 			else if ($p['keepfailed'])
 				$result = $fileexists;
 			else
@@ -513,6 +519,10 @@ function get_cache($p = array())
 		$result = true;	# Up to date
 	}
 
+	# Read headers before $path is modified for preprocessing
+	if ($p['returnheaders'])
+		$headers = @include("$path.headers");
+
 	if ($result && $p['preprocess'])
 	{
 		$srcpath = $path;
@@ -565,7 +575,7 @@ function get_cache($p = array())
 	}
 
 	EDC('getcache', $result, $path);
-	return $result ? $path : false;
+	return $result ? ($p['returnheaders'] ? array($path, $headers) : $path) : false;
 }
 
 /**
-- 
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