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Catch RuntimeException: mb_convert_encoding(): Illegal character encoding specified at PhabricatorTextDocumentEngine.php:73

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Summary:
When given `$encoding` is invalid, catch the exception to show a proper error message and make the server logs provide more hints.

```
EXCEPTION: (RuntimeException) mb_convert_encoding(): Illegal character encoding specified at [<arcanist>/src/error/PhutilErrorHandler.php:261]
#0 <#2> PhutilErrorHandler::handleError(integer, string, string, integer, array) called at [<arcanist>/src/error/PhutilErrorHandler.php:261]
#1 <#2> mb_convert_encoding(string, string, string) called at [<phabricator>/src/applications/files/document/PhabricatorTextDocumentEngine.php:73]
```

Closes T15624

Test Plan: Open a URL which passes a bogus encoding value as parameter, like `/source/somerepository/browse/master/README.md?as=source&encode=TROLOLOL`

Reviewers: O1 Blessed Committers, valerio.bozzolan

Reviewed By: O1 Blessed Committers, valerio.bozzolan

Subscribers: Sten, tobiaswiese, valerio.bozzolan, Matthew, Cigaryno

Maniphest Tasks: T15624

Differential Revision: https://we.phorge.it/D25418
This commit is contained in:
Andre Klapper 2023-12-17 11:41:42 +01:00
parent 2295bcda14
commit fe1122bd4d
1 changed files with 10 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
src/applications/files/document/PhabricatorTextDocumentEngine.php
View file

@ -70,10 +70,16 @@ abstract class PhabricatorTextDocumentEngine
$encoding = $this->getEncodingConfiguration();
if ($encoding !== null) {
if (function_exists('mb_convert_encoding')) {
try {
$content = mb_convert_encoding($content, 'UTF-8', $encoding);
$this->encodingMessage = pht(
'This document was converted from %s to UTF8 for display.',
$encoding);
} catch (Throwable $ex) {
$this->encodingMessage = pht(
'Unable to convert from requested encoding %s to UTF8.',
$encoding);
}
} else {
$this->encodingMessage = pht(
'Unable to perform text encoding conversion: mbstring extension '.