@jsvfs/adapter-azure-blob/src/helpers.js

An adapter for Azure Storage Blobs.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.parse = exports.isContainerName = void 0;
/** Function for iterating over a string and ensuring it is a valid container name.
 * See [Microsofts documentation](https://docs.microsoft.com/en-us/rest/api/storageservices/naming-and-referencing-containers--blobs--and-metadata#container-names)
 */
function isContainerName(str) {
    const validChars = '-abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
    const minLength = 3;
    const maxLength = 63;
    const invalidStartChar = '-';
    const invalidSequence = '--';
    if (typeof str !== 'string' ||
        str.length < minLength ||
        str.length > maxLength ||
        str.includes(invalidSequence) ||
        str.startsWith(invalidStartChar))
        return false;
    for (const char of [...str]) {
        if (!validChars.includes(char))
            return false;
    }
    return true;
}
exports.isContainerName = isContainerName;
/** Parses a given path into a container and blob name. */
function parse(path, root) {
    if (root === '/') {
        const parts = path.split('/');
        if (parts[0] === '') {
            return {
                container: parts[1],
                blobName: parts.slice(2).join('/')
            };
        }
        return {
            container: parts[0],
            blobName: parts.slice(1).join('/')
        };
    }
    return {
        container: root,
        blobName: path[0] === '/' ? path.substring(1) : path
    };
}
exports.parse = parse;
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