@darlean/webservice/lib/staticfile.js

Webservice library for Darlean

"use strict";
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    var desc = Object.getOwnPropertyDescriptor(m, k);
    if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
      desc = { enumerable: true, get: function() { return m[k]; } };
    }
    Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
    Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
    o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
    if (mod && mod.__esModule) return mod;
    var result = {};
    if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
    __setModuleDefault(result, mod);
    return result;
};
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.StaticFileHandler = void 0;
const fs = __importStar(require("fs"));
const wrapper_1 = require("./wrapper");
const mime_types_1 = __importDefault(require("mime-types"));
class StaticFileHandler {
    constructor(options) {
        this.basePaths = options.basePaths;
        this.indexFiles = options.indexFiles;
        this.recurseUp = options.recurseUp ?? false;
    }
    async handle(req) {
        const resp = new wrapper_1.Response(req);
        const path = req.placeholders?.['*'] ?? '';
        const parts = path.split('/').filter((x) => x !== '.' && x !== '..');
        for (const basePath of this.basePaths) {
            let subpath = [...parts];
            while (true) {
                const newPath = subpath.join('/');
                const fullPath = [basePath, newPath].join('/');
                for (const indexFile of ['', ...this.indexFiles]) {
                    const fullPath2 = indexFile === '' ? fullPath : [fullPath, indexFile].join('/');
                    try {
                        const mimetype = mime_types_1.default.lookup(fullPath2) || undefined;
                        const stream = fs.createReadStream(fullPath2);
                        if (mimetype) {
                            resp.setHeader('content-type', mimetype);
                        }
                        for await (const chunk of stream) {
                            await resp.push(chunk);
                        }
                        return resp.end();
                    }
                    catch (e) {
                        // Ignore file not found
                    }
                }
                if (!this.recurseUp) {
                    break;
                }
                if (subpath.length === 0) {
                    break;
                }
                subpath = subpath.slice(0, -2);
            }
        }
        return resp.endWithStatusCode(404, 'File not found');
    }
}
exports.StaticFileHandler = StaticFileHandler;