From f3ae6e3c50d217d3fd46df8edf8079547e6f2864 Mon Sep 17 00:00:00 2001
From: Urban Müller
Date: Thu, 16 Apr 2020 20:57:01 +0200
Subject: allow postprocessors like json_decode

---
 it_url.class | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/it_url.class b/it_url.class
index a08237a..8eb7aa8 100644
--- a/it_url.class
+++ b/it_url.class
@@ -98,6 +98,7 @@ function is_reachable($timeout = 5)
  * @param $p['retries']       Number of retries if download fails, default 1
  * @param $p['retrysleep']    Number of seconds to wait before retry (additional to fetchsleep), fractions ok
  * @param $p['compression']   use compression (uses curl to do that)
+ * @param $p['postprocess']   function called with content and $p which has it_error. returns content or null
  * @return contents of resulting page, considering redirects, excluding headers, or false on error
  */
 function get($p=null, $timeout=5)
@@ -121,6 +122,8 @@ function get($p=null, $timeout=5)
 		$url = new it_url($p['url']);
 
 	$result = $url->request($p + ['followlocation' => true]);
+	if ($p['postprocess'])
+		$result = $p['postprocess']($result, ['it_error' => $p['retries'] > 0 ? false : ['title' => "invalid content from " . $p['url']]]);
 
 	if (!$result && $p['retries'] > 0 && !it::match('^(4..|204)$', $url->result))
 	{
@@ -383,9 +386,11 @@ static function get_multi($p=null)
 				{
 					$key = $keys[$info['handle']];
 					$content = curl_multi_getcontent($info['handle']);
+					if (isset($p['postprocess']))
+						$content = $p['postprocess']($content, ['it_error' => $retries[$key] < $p['retries'] ? false : ['title' => "invalid content from " . $urls[$key]]]);
 
 					EDC('reqtimings', $key, $info['result'], (gettimeofday(true) - $start) * 1000);
-					if ($info['result'] == CURLE_OK) {
+					if ($info['result'] == CURLE_OK && $content !== null) {
 						if (!$p['noresults'])
 							$results_unordered[$key] = $content;
 
@@ -397,6 +402,7 @@ static function get_multi($p=null)
 					} else if($retries[$key]++ < $p['retries']) {
 						$closehandle($key);  # closehandle must be called before addhandle as we use the same key
 						$addhandle($key, $urls[$key]);
+						$mrc = CURLM_CALL_MULTI_PERFORM; # force continue if this was last handle
 					} else {
 						$results_unordered[$key] = false;
 						unset($urls[$key]);
-- 
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