diff options
Diffstat (limited to 'lib/private/Files/FilenameValidator.php')
| -rw-r--r-- | lib/private/Files/FilenameValidator.php | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/lib/private/Files/FilenameValidator.php b/lib/private/Files/FilenameValidator.php index b1979789ec8..57a62b0b219 100644 --- a/lib/private/Files/FilenameValidator.php +++ b/lib/private/Files/FilenameValidator.php @@ -228,6 +228,43 @@ class FilenameValidator implements IFilenameValidator { return false; } + public function sanitizeFilename(string $name, ?string $charReplacement = null): string { + $forbiddenCharacters = $this->getForbiddenCharacters(); + + if ($charReplacement === null) { + $charReplacement = array_diff([' ', '_', '-'], $forbiddenCharacters); + $charReplacement = reset($charReplacement) ?: ''; + } + if (mb_strlen($charReplacement) !== 1) { + throw new \InvalidArgumentException('No or invalid character replacement given'); + } + + $nameLowercase = mb_strtolower($name); + foreach ($this->getForbiddenExtensions() as $extension) { + if (str_ends_with($nameLowercase, $extension)) { + $name = substr($name, 0, strlen($name) - strlen($extension)); + } + } + + $basename = strlen($name) > 1 + ? substr($name, 0, strpos($name, '.', 1) ?: null) + : $name; + if (in_array(mb_strtolower($basename), $this->getForbiddenBasenames())) { + $name = str_replace($basename, $this->l10n->t('%1$s (renamed)', [$basename]), $name); + } + + if ($name === '') { + $name = $this->l10n->t('renamed file'); + } + + if (in_array(mb_strtolower($name), $this->getForbiddenFilenames())) { + $name = $this->l10n->t('%1$s (renamed)', [$name]); + } + + $name = str_replace($forbiddenCharacters, $charReplacement, $name); + return $name; + } + protected function checkForbiddenName(string $filename): void { $filename = mb_strtolower($filename); if ($this->isForbidden($filename)) { |