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Bugfix: Clean up correctly if the external renderer burps

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This is especialyl important for the exteernal renderer cache directory, 
which is assumed to contain exclusively valid rendered outputs.
This commit is contained in:
Starbeamrainbowlabs 2019-10-21 00:41:14 +01:00
parent b7cb9741de
commit 0744498570
Signed by: sbrl
GPG key ID: 1BE5172E637709C2
2 changed files with 10 additions and 1 deletions
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2
module_index.json
View file

@ -337,7 +337,7 @@
"version": "0.10",
"author": "Emanuil Rusev & Starbeamrainbowlabs",
"description": "An upgraded (now default!) parser based on Emanuil Rusev's Parsedown Extra PHP library (https:\/\/github.com\/erusev\/parsedown-extra), which is licensed MIT. Please be careful, as this module adds some weight to your installation.",
"lastupdate": 1571614194,
"lastupdate": 1571614692,
"optional": false,
"extra_data": {
"Parsedown.php": "https:\/\/raw.githubusercontent.com\/erusev\/parsedown\/fe7a50eceb4a3c867cc9fa9c0aa906b1067d1955\/Parsedown.php",

9
modules/parser-parsedown.php
View file

@ -135,6 +135,12 @@ register_module([
null // environment variables
);
if(!is_resource($process_handle)) {
fclose($dest_handle);
fclose($source_handle);
fclose($error_text_handle);
unlink($cache_file_location);
http_response_code(503);
header("cache-control: no-cache, no-store, must-revalidate");
header("content-type: image/png");
@ -152,6 +158,9 @@ register_module([
if($exit_code !== 0) {
fseek($error_text_handle, 0);
$error_details = stream_get_contents($error_text_handle);
// Delete the cache file, which is guaranteed to exist because
// we pre-emptively create it above
unlink($cache_file_location);
http_response_code(503);
header("content-type: image/png");