LiveIntent User ID Module: Eliminating live-connect NPM Dependency

libraries/liveIntentId/externalIdSystem.js

@@ -0,0 +1,173 @@
+import { logError } from '../../src/utils.js';
+import { gdprDataHandler, uspDataHandler, gppDataHandler } from '../../src/adapterManager.js';
+import { submodule } from '../../src/hook.js';
+import { DEFAULT_AJAX_TIMEOUT, MODULE_NAME, parseRequestedAttributes, composeIdObject, eids, GVLID, PRIMARY_IDS } from './shared.js'
+
+// Reference to the client for the liQHub.
+let cachedClientRef
+
+/**
+ * This function is used in tests.
+ */
+export function resetSubmodule() {
+  cachedClientRef = undefined
+}
+
+window.liQHub = window.liQHub ?? []
+
+function initializeClient(configParams) {
+  // Only initialize once.
+  if (cachedClientRef != null) return cachedClientRef
+
+  const clientRef = {}
+
+  const clientDetails = { name: 'prebid', version: '$prebid.version$' }
+
+  const collectConfig = configParams.liCollectConfig ?? {};
+
+  let integration
+  if (collectConfig.appId != null) {
+    integration = { type: 'application', appId: collectConfig.appId, publisherId: configParams.publisherId }
+  } else if (configParams.distributorId != null && configParams.publisherId == null) {
+    integration = { type: 'distributor', distributorId: configParams.distributorId }
+  } else {
+    integration = { type: 'custom', publisherId: configParams.publisherId, distributorId: configParams.distributorId }
+  }
+
+  const partnerCookies = new Set(configParams.identifiersToResolve ?? []);
+
+  const collectSettings = { timeout: collectConfig.ajaxTimeout ?? DEFAULT_AJAX_TIMEOUT }
+
+  let identityPartner
+  if (collectConfig.appId == null && configParams.distributorId != null) {
+    identityPartner = configParams.distributorId
+  } else if (configParams.partner != null) {
+    identityPartner = configParams.partner
+  } else {
+    identityPartner = 'prebid'
+  }
+
+  const resolveSettings = {
+    identityPartner,
+    timeout: configParams.ajaxTimeout ?? DEFAULT_AJAX_TIMEOUT
+  }
+
+  let idCookieSettings
+  if (configParams.fpid != null) {
+    const fpidConfig = configParams.fpid
+    let source
+    if (fpidConfig.strategy === 'html5') {
+      source = 'local_storage'
+    } else {
+      source = fpidConfig.strategy
+    }
+    idCookieSettings = { idCookieSettings: { type: 'provided', source, key: fpidConfig.name } };
+  } else {
+    idCookieSettings = {}
+  }
+
+  function loadConsent() {
+    const consent = {}
+    const usPrivacyString = uspDataHandler.getConsentData();
+    if (usPrivacyString != null) {
+      consent.usPrivacy = { consentString: usPrivacyString }
+    }
+    const gdprConsent = gdprDataHandler.getConsentData()
+    if (gdprConsent != null) {
+      consent.gdpr = gdprConsent
+    }
+    const gppConsent = gppDataHandler.getConsentData();
+    if (gppConsent != null) {
+      consent.gpp = { consentString: gppConsent.gppString, applicableSections: gppConsent.applicableSections }
+    }
+
+    return consent
+  }
+  const consent = loadConsent()
+
+  window.liQHub.push({
+    type: 'register_client',
+    clientRef,
+    clientDetails,
+    integration,
+    consent,
+    partnerCookies,
+    collectSettings,
+    ...idCookieSettings,
+    resolveSettings
+  })
+
+  if (configParams.emailHash != null) {
+    window.liQHub.push({ type: 'collect', clientRef, sourceEvent: { hash: configParams.emailHash } })
+  }
+
+  cachedClientRef = clientRef
+  return clientRef
+}
+
+/**
+ * Create requestedAttributes array to pass to LiveConnect.
+ * @function
+ * @param {Object} overrides - object with boolean values that will override defaults { 'foo': true, 'bar': false }
+ * @returns {Array}
+ */
+
+function resolve(configParams, clientRef, callback) {
+  function onFailure(error) {
+    logError(`${MODULE_NAME}: ID fetch encountered an error: `, error);
+    callback();
+  }
+
+  const onSuccess = [{ type: 'callback', callback }]
+
+  window.liQHub.push({
+    type: 'resolve',
+    clientRef,
+    requestedAttributes: parseRequestedAttributes(configParams.requestedAttributesOverrides),
+    onFailure,
+    onSuccess
+  })
+}
+
+/**
+ * @typedef {import('../../modules/userId/index.js').Submodule} Submodule
+ */
+
+/** @type {Submodule} */
+export const liveIntentExternalIdSubmodule = {
+  /**
+   * Used to link submodule with config.
+   * @type {string}
+   */
+  name: MODULE_NAME,
+  gvlid: GVLID,
+
+  /**
+   * Decode the stored id value for passing to bid requests.
+   * @function
+   */
+  decode(value, config) {
+    const configParams = config?.params ?? {};
+
+    // Ensure client is initialized and we fired at least one collect request.
+    initializeClient(configParams)
+
+    return composeIdObject(value);
+  },
+
+  /**
+   * Performs action to obtain id and return a value in the callback's response argument.
+   * @function
+   */
+  getId(config) {
+    const configParams = config?.params ?? {};
+
+    const clientRef = initializeClient(configParams)
+
+    return { callback: function(cb) { resolve(configParams, clientRef, cb); } };
+  },
+  primaryIds: PRIMARY_IDS,
+  eids
+};
+
+submodule('userId', liveIntentExternalIdSubmodule);