@smoud/playable-scripts/core/plugins/DAPIInjectorPlugin.js

Accelerate HTML5 playable ad development and production across different ad networks, with a single tool, which offering both a streamlined CLI and a flexible API.

const HtmlWebpackPlugin = require('html-webpack-plugin');

const dapiSrc =
  'function getScript(e,i){var n=document.createElement("script");n.type="text/javascript",n.async=!0,i&&(n.onload=i),n.src=e,document.head.appendChild(n)}function parseMessage(e){var i=e.data,n=i.indexOf(DOLLAR_PREFIX+RECEIVE_MSG_PREFIX);if(-1!==n){var t=i.slice(n+2);return getMessageParams(t)}return{}}function getMessageParams(e){var i,n=[],t=e.split("/"),a=t.length;if(-1===e.indexOf(RECEIVE_MSG_PREFIX)){if(a>=2&&a%2===0)for(i=0;a>i;i+=2)n[t[i]]=t.length<i+1?null:decodeURIComponent(t[i+1])}else{var o=e.split(RECEIVE_MSG_PREFIX);void 0!==o[1]&&(n=JSON&&JSON.parse(o[1]))}return n}function getDapi(e){var i=parseMessage(e);if(!i||i.name===GET_DAPI_URL_MSG_NAME){var n=i.data;getScript(n,onDapiReceived)}}function invokeDapiListeners(){for(var e in dapiEventsPool)dapiEventsPool.hasOwnProperty(e)&&dapi.addEventListener(e,dapiEventsPool[e])}function onDapiReceived(){dapi=window.dapi,window.removeEventListener("message",getDapi),invokeDapiListeners()}function init(){window.dapi.isDemoDapi&&(window.parent.postMessage(DOLLAR_PREFIX+SEND_MSG_PREFIX+JSON.stringify({state:"getDapiUrl"}),"*"),window.addEventListener("message",getDapi,!1))}var DOLLAR_PREFIX="$$",RECEIVE_MSG_PREFIX="DAPI_SERVICE:",SEND_MSG_PREFIX="DAPI_AD:",GET_DAPI_URL_MSG_NAME="connection.getDapiUrl",dapiEventsPool={},dapi=window.dapi||{isReady:function(){return!1},addEventListener:function(e,i){dapiEventsPool[e]=i},removeEventListener:function(e){delete dapiEventsPool[e]},isDemoDapi:!0};init();';

/**
 * Webpack plugin that injects DAPI (Display Advertising Programming Interface) script
 * into the HTML head. This enables communication with ad networks that use DAPI protocol.
 * @implements {import('webpack').WebpackPluginInstance}
 */
class DAPIInjectorPlugin {
  apply(compiler) {
    compiler.hooks.compilation.tap('DAPIInjectorPlugin', (compilation) => {
      HtmlWebpackPlugin.getHooks(compilation).alterAssetTagGroups.tapAsync('DAPIInjectorPlugin', (data, callback) => {
        data.headTags.splice(0, 0, {
          tagName: 'script',
          voidTag: false,
          meta: { plugin: 'html-inline-script-webpack-plugin' },
          innerHTML: dapiSrc
        });

        callback(null, data);
      });
    });
  }
}

exports.DAPIInjectorPlugin = DAPIInjectorPlugin;