mirror of
https://github.com/xuxiaobo-bobo/boda_jsEnv.git
synced 2025-04-22 03:15:25 +08:00
93 lines
3.1 KiB
JavaScript
93 lines
3.1 KiB
JavaScript
"use strict";
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var __importDefault = (this && this.__importDefault) || function (mod) {
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return (mod && mod.__esModule) ? mod : { "default": mod };
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};
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.ftp = void 0;
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const basic_ftp_1 = require("basic-ftp");
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const stream_1 = require("stream");
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const path_1 = require("path");
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const debug_1 = __importDefault(require("debug"));
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const notfound_1 = __importDefault(require("./notfound"));
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const notmodified_1 = __importDefault(require("./notmodified"));
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const debug = (0, debug_1.default)('get-uri:ftp');
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/**
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* Returns a Readable stream from an "ftp:" URI.
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*/
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const ftp = async (url, opts = {}) => {
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const { cache } = opts;
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const filepath = decodeURIComponent(url.pathname);
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let lastModified;
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if (!filepath) {
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throw new TypeError('No "pathname"!');
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}
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const client = new basic_ftp_1.Client();
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try {
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const host = url.hostname || url.host || 'localhost';
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const port = parseInt(url.port || '0', 10) || 21;
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const user = url.username
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? decodeURIComponent(url.username)
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: undefined;
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const password = url.password
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? decodeURIComponent(url.password)
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: undefined;
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await client.access({
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host,
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port,
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user,
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password,
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...opts,
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});
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// first we have to figure out the Last Modified date.
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// try the MDTM command first, which is an optional extension command.
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try {
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lastModified = await client.lastMod(filepath);
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}
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catch (err) {
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// handle the "file not found" error code
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if (err.code === 550) {
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throw new notfound_1.default();
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}
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}
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if (!lastModified) {
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// Try to get the last modified date via the LIST command (uses
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// more bandwidth, but is more compatible with older FTP servers
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const list = await client.list((0, path_1.dirname)(filepath));
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// attempt to find the "entry" with a matching "name"
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const name = (0, path_1.basename)(filepath);
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const entry = list.find((e) => e.name === name);
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if (entry) {
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lastModified = entry.modifiedAt;
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}
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}
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if (lastModified) {
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if (isNotModified()) {
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throw new notmodified_1.default();
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}
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}
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else {
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throw new notfound_1.default();
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}
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const stream = new stream_1.PassThrough();
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const rs = stream;
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client.downloadTo(stream, filepath).then((result) => {
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debug(result.message);
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client.close();
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});
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rs.lastModified = lastModified;
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return rs;
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}
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catch (err) {
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client.close();
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throw err;
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}
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// called when `lastModified` is set, and a "cache" stream was provided
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function isNotModified() {
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if (cache?.lastModified && lastModified) {
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return +cache.lastModified === +lastModified;
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}
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return false;
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}
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};
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exports.ftp = ftp;
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//# sourceMappingURL=ftp.js.map
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