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[stable17] Only cache the mimetype if the file exists #17538

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Merged
rullzer merged 1 commit into from
Oct 17, 2019
Merged

[stable17] Only cache the mimetype if the file exists #17538

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50 changes: 35 additions & 15 deletions apps/workflowengine/lib/Check/FileMimeType.php
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Original file line number Diff line number Diff line change
Expand Up @@ -68,6 +68,29 @@ public function setFileInfo(IStorage $storage, $path) {
}
}

/**
* The mimetype is only cached if the file exists. Otherwise files access
* control will cache "application/octet-stream" for all the target node on:
* rename, move, copy and all other methods which create a new item
*
* To check this:
* 1. Add an automated tagging rule which tags on mimetype NOT "httpd/unix-directory"
* 2. Add an access control rule which checks for any mimetype
* 3. Create a folder and rename it, the folder should not be tagged, but it is
*
* @param string $storageId
* @param string|null $path
* @param string $mimeType
* @return string
*/
protected function cacheAndReturnMimeType(string $storageId, ?string $path, string $mimeType): string {
if ($path !== null && $this->storage->file_exists($path)) {
$this->mimeType[$storageId][$path] = $mimeType;
}

return $mimeType;
}

/**
* @return string
*/
Expand All @@ -77,25 +100,23 @@ protected function getActualValue() {
}

if ($this->storage->is_dir($this->path)) {
$this->mimeType[$this->storage->getId()][$this->path] = 'httpd/unix-directory';
return $this->mimeType[$this->storage->getId()][$this->path];
return $this->cacheAndReturnMimeType($this->storage->getId(), $this->path, 'httpd/unix-directory');
}

if ($this->isWebDAVRequest()) {
// Creating a folder
if ($this->request->getMethod() === 'MKCOL') {
$this->mimeType[$this->storage->getId()][$this->path] = 'httpd/unix-directory';
return $this->mimeType[$this->storage->getId()][$this->path];
return $this->cacheAndReturnMimeType($this->storage->getId(), $this->path, 'httpd/unix-directory');
}

if ($this->request->getMethod() === 'PUT' || $this->request->getMethod() === 'MOVE') {
if ($this->request->getMethod() === 'MOVE') {
$this->mimeType[$this->storage->getId()][$this->path] = $this->mimeTypeDetector->detectPath($this->path);
$mimeType = $this->mimeTypeDetector->detectPath($this->path);
} else {
$path = $this->request->getPathInfo();
$this->mimeType[$this->storage->getId()][$this->path] = $this->mimeTypeDetector->detectPath($path);
$mimeType = $this->mimeTypeDetector->detectPath($path);
}
return $this->mimeType[$this->storage->getId()][$this->path];
return $this->cacheAndReturnMimeType($this->storage->getId(), $this->path, $mimeType);
}
} else if ($this->isPublicWebDAVRequest()) {
if ($this->request->getMethod() === 'PUT') {
Expand All @@ -104,8 +125,8 @@ protected function getActualValue() {
$path = substr($path, strlen('/webdav'));
}
$path = $this->path . $path;
$this->mimeType[$this->storage->getId()][$path] = $this->mimeTypeDetector->detectPath($path);
return $this->mimeType[$this->storage->getId()][$path];
$mimeType = $this->mimeTypeDetector->detectPath($path);
return $this->cacheAndReturnMimeType($this->storage->getId(), $path, $mimeType);
}
}

Expand All @@ -125,17 +146,16 @@ protected function getActualValue() {
}
}
}
$this->mimeType[$this->storage->getId()][$this->path] = $mimeType;
return $mimeType;
return $this->cacheAndReturnMimeType($this->storage->getId(), $this->path, $mimeType);
}
}

$this->mimeType[$this->storage->getId()][$this->path] = $this->storage->getMimeType($this->path);
if ($this->mimeType[$this->storage->getId()][$this->path] === 'application/octet-stream') {
$this->mimeType[$this->storage->getId()][$this->path] = $this->detectMimetypeFromPath();
$mimeType = $this->storage->getMimeType($this->path);
if ($mimeType === 'application/octet-stream') {
$mimeType = $this->detectMimetypeFromPath();
}

return $this->mimeType[$this->storage->getId()][$this->path];
return $this->cacheAndReturnMimeType($this->storage->getId(), $this->path, $mimeType);
}

/**
Expand Down