1 | import express = require("express");
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2 | import { createReadStream } from "fs";
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3 | import { IPackInfoModule } from "neweb-pack";
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4 | export interface IModuleServerConfig {
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5 | modulesPath: string;
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6 | }
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7 | class ModuleServer {
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8 | constructor(protected config: IModuleServerConfig) {
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9 |
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10 | }
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11 | public handle = async (req: express.Request, res: express.Response) => {
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12 |
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13 | const { type, name: xName, version } = req.params;
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14 | const name = xName.replace(/~/gi, "/");
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15 | try {
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16 | const mod = {
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17 | name,
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18 | type,
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19 | version: version === "*" ? undefined : version,
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20 | };
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21 | const moduleStream = await this.getModuleContentStream(mod);
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22 | moduleStream.on("error", (e) => {
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23 | if (e.toString().indexOf("ENOENT") > -1) {
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24 | res.status(404).send("Not found module::" + JSON.stringify(mod));
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25 | return;
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26 | }
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27 | res.status(500).send(e.toString());
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28 | });
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29 | moduleStream.on("open", () => {
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30 | res.writeHead(200, {
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31 | "Content-Type": "application/json",
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32 | });
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33 | moduleStream.pipe(res);
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34 | });
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35 | moduleStream.on("close", () => {
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36 | res.end();
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37 | });
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38 | } catch (e) {
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39 | res.status(500).send(e.toString());
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40 | }
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41 |
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42 | }
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43 | protected async getModuleContentStream(moduleInfo: IPackInfoModule) {
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44 | return createReadStream(this.config.modulesPath + "/" + moduleInfo.type + "/" + moduleInfo.name +
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45 | "/" + moduleInfo.version + "/index.js");
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46 | }
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47 | }
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48 | export default ModuleServer;
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