/**
* Delete a blob from specified container
*
* @param string $containerName Name of the parent container
*
* @param string $blobName Name of the blob to be deleted
*
* @return void
*/
function deleteBlob($containerName, $blobName)
{
try {
if (WindowsAzureStorageUtil::blobExists($containerName, $blobName)) {
$_SERVER['REQUEST_URI'] = remove_query_arg(array('delete_blob', 'filename', 'selected_container'), $_SERVER['REQUEST_URI']);
WindowsAzureStorageUtil::deleteBlob($containerName, $blobName);
}
} catch (Exception $e) {
/* translators: 1: blob (file) name, 2: container name, 3: error message */
$message = sprintf(__('Error in deleting blob %1$s from container %2$s: %3$s', 'windows-azure-storage'), $blobName, $containerName, $e->getMessage());
echo '<p class="warning">' . esc_html($message) . '</p>';
}
}
/**
* Genarate a blob name that is unique for the given container.
*
* @param string $container The default Azure storage container
* @param string $blobName The blob name
*
* @return string Unique blob name
*/
public static function uniqueBlobName($container, $blobName)
{
$info = pathinfo($blobName);
$uploadSubDir = '.' === $info['dirname'] ? '' : $info['dirname'];
$filename = sanitize_file_name($info['basename']);
// sanitized blob name
$blobName = '' === $uploadSubDir ? $filename : $uploadSubDir . '/' . $filename;
$newInfo = pathinfo($blobName);
$ext = !empty($newInfo['extension']) ? '.' . $newInfo['extension'] : '';
$number = '';
// change '.ext' to lower case
if ($ext && strtolower($ext) != $ext) {
$ext2 = strtolower($ext);
$filename2 = preg_replace('|' . preg_quote($ext) . '$|', $ext2, $filename);
$blobName2 = '' === $uploadSubDir ? $filename2 : $uploadSubDir . '/' . $filename2;
// check for both lower and upper case extension or image sub-sizes may be overwritten
while (WindowsAzureStorageUtil::blobExists($container, $blobName) || WindowsAzureStorageUtil::blobExists($container, $blobName2)) {
$new_number = $number + 1;
$filename = str_replace("{$number}{$ext}", "{$new_number}{$ext}", $filename);
$filename2 = str_replace("{$number}{$ext2}", "{$new_number}{$ext2}", $filename2);
$number = $new_number;
$blobName = '' === $uploadSubDir ? $filename : $uploadSubDir . '/' . $filename;
$blobName2 = '' === $uploadSubDir ? $filename2 : $uploadSubDir . '/' . $filename2;
}
return $blobName2;
}
while (WindowsAzureStorageUtil::blobExists($container, $blobName)) {
if ('' === "{$number}{$ext}") {
$filename = $filename . ++$number . $ext;
} else {
$filename = str_replace("{$number}{$ext}", ++$number . $ext, $filename);
}
$blobName = '' === $uploadSubDir ? $filename : $uploadSubDir . '/' . $filename;
}
return $blobName;
}
/**
* Delete a blob from specified container
*
* @param string $containerName Name of the parent container
*
* @param string $blobName Name of the blob to be deleted
*
* @return void
*/
function deleteBlob($containerName, $blobName)
{
try {
if (WindowsAzureStorageUtil::blobExists($containerName, $blobName)) {
remove_query_arg('deleteBlob', $_SERVER['REQUEST_URI']);
WindowsAzureStorageUtil::deleteBlob($containerName, $blobName);
}
} catch (Exception $e) {
echo '<p style="margin: 10px; color: red;">' . 'Error in deleting blob $blobName from container $containerName : ' . $e->getMessage() . "</p><br/>";
}
}