realm-object-server/dist/shared/virtPath.js

Realm Object Server

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const path = require("path");
function mapVirtToRealmPath(rootPath, virtPath) {
    if (virtPath === "" || !virtPath.startsWith("/")) {
        return {
            error: "path is empty or doesn't start with slash"
        };
    }
    let result = rootPath;
    const [head, ...tail] = virtPath.split("/");
    for (const segment of tail) {
        const { isValid, error } = validVirtPathSegment(segment);
        if (!isValid) {
            return {
                error: `encountered an invalid segment: '${segment}'. Error: ${error}`
            };
        }
        result = path.resolve(result, segment);
    }
    return {
        path: result + ".realm",
    };
}
exports.mapVirtToRealmPath = mapVirtToRealmPath;
const badSuffixes = [".realm", ".realm.lock", ".realm.management"];
const alphanumRegex = /^[0-9a-zA-Z\-_\.]+$/;
function validVirtPathSegment(segment) {
    if (segment === "") {
        return {
            isValid: false,
            error: "segment is empty",
        };
    }
    if (segment.startsWith(".")) {
        return {
            isValid: false,
            error: "segment starts with dot (.)",
        };
    }
    if (badSuffixes.some(s => segment.endsWith(s))) {
        return {
            isValid: false,
            error: `segment ends with one of ${badSuffixes.join(", ")}`,
        };
    }
    if (!alphanumRegex.test(segment)) {
        return {
            isValid: false,
            error: "segment is not composed of alphanumeric characters",
        };
    }
    return {
        isValid: true,
    };
}
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