@greenwood/cli/src/plugins/resource/plugin-standard-video.js

Greenwood CLI.

/*
 *
 * Manages web standard resource related operations for video formats.
 * This is a Greenwood default plugin.
 *
 */
import fs from "fs/promises";

class StandardVideoResource {
  constructor(compilation) {
    this.compilation = compilation;

    // https://developer.mozilla.org/en-US/docs/Web/Media/Formats/Video_codecs
    // https://help.encoding.com/knowledge-base/article/correct-mime-types-for-serving-video-files/
    this.extensions = ["3gp", "avi", "flv", "m3u8", "mp4", "mov", "ogg", "ogv", "wmv"];
  }

  async shouldServe(url) {
    const extension = url.pathname.split(".").pop();

    return url.protocol === "file:" && this.extensions.includes(extension);
  }

  async serve(url) {
    const extension = url.pathname.split(".").pop();
    const body = await fs.readFile(url);
    let contentType = "";

    switch (extension) {
      case "3gp":
        contentType = "video/3gpp";
        break;
      case "avi":
        contentType = "video/x-msvideo";
        break;
      case "flv":
        contentType = "video/x-flv";
        break;
      case "m3u8":
        contentType = "application/x-mpegURL";
        break;
      case "mp4":
        contentType = "video/mp4";
        break;
      case "mov":
        contentType = "video/quicktime";
        break;
      case "ogg":
        contentType = `application/${extension}`;
        break;
      case "ogv":
        contentType = `video/${extension}`;
        break;
      case "wmv":
        contentType = "video/x-ms-wmv";
        break;
      default:
    }

    return new Response(body, {
      headers: new Headers({
        "Content-Type": contentType,
        "Content-Length": String(body.toString().length),
      }),
    });
  }
}

const greenwoodPluginStandardVideo = {
  type: "resource",
  name: "plugin-standard-video",
  provider: (compilation) => new StandardVideoResource(compilation),
};

export { greenwoodPluginStandardVideo };