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Fix case-insensitive handling of .php extensions #2046

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Fix case-insensitive handling of .php extensions #2046

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18 changes: 10 additions & 8 deletions public/error.php
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Original file line number Diff line number Diff line change
Expand Up @@ -181,19 +181,21 @@
mirror_redirect("https://github.com/php/php-src/issues/" . $matches[1]);
}

// php.net/supported-versions.PHP -> supported-versions.php
if ($URI == 'supported-versions.PHP') {
mirror_redirect("https://www.php.net/supported-versions.php");
}

// Fix for case-insensitive .php extension, e.g. /supported-versions.PHP, /downloads.PHP
$originalURI = $URI;
$URI = preg_replace('/\.php\z/i', '.php', $URI);

// ============================================================================
// Redirect if the entered URI was a PHP page name (except some pages,
// which we display in the mirror's language or the explicitly specified
// language [see below])
if (!in_array($URI, ['mirror-info', 'error', 'mod'], true) &&
file_exists(ProjectGlobals::getPublicRoot() . "/$URI.php")) {
mirror_redirect("/$URI.php");
$hasPhpExtension = str_ends_with($URI, '.php');
$phpPage = $hasPhpExtension ? $URI : "$URI.php";
$phpPageName = $hasPhpExtension ? substr($URI, 0, -4) : $URI;
if (!in_array($phpPageName, ['mirror-info', 'error', 'mod'], true) &&
file_exists(ProjectGlobals::getPublicRoot() . "/$phpPage") &&
(!$hasPhpExtension || $URI !== $originalURI)) {
mirror_redirect("/$phpPage");
}

// Work with lowercased URI from now
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