forked from tpd94/CDRM-Extension
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9e071365e3
...
867294f7f6
| Author | SHA1 | Date | |
|---|---|---|---|
|
867294f7f6 | ||
|
|
f8712d7726 |
519
src/inject.js
519
src/inject.js
@ -537,12 +537,11 @@ function postDRMTypeAndPssh(type, pssh) {
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window.postMessage({ type: "__PSSH_DATA__", data: pssh }, "*");
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}
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function ensureRemoteCDM(type, deviceInfo, pssh) {
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if (!remoteCDM) {
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function createAndOpenRemoteCDM(type, deviceInfo, pssh) {
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let cdm;
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if (type === "Widevine") {
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const { device_type, system_id, security_level, host, secret, device_name } =
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deviceInfo;
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remoteCDM = new remoteWidevineCDM(
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const { device_type, system_id, security_level, host, secret, device_name } = deviceInfo;
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cdm = new remoteWidevineCDM(
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device_type,
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system_id,
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security_level,
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@ -550,14 +549,20 @@ function ensureRemoteCDM(type, deviceInfo, pssh) {
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secret,
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device_name
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);
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remoteCDM.openSession();
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remoteCDM.getChallenge(pssh);
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cdm.openSession();
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cdm.getChallenge(pssh);
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} else if (type === "PlayReady") {
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const { security_level, host, secret, device_name } = deviceInfo;
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remoteCDM = new remotePlayReadyCDM(security_level, host, secret, device_name);
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remoteCDM.openSession();
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remoteCDM.getChallenge(pssh);
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cdm = new remotePlayReadyCDM(security_level, host, secret, device_name);
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cdm.openSession();
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cdm.getChallenge(pssh);
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}
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return cdm;
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}
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function ensureRemoteCDM(type, deviceInfo, pssh) {
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if (!remoteCDM) {
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remoteCDM = createAndOpenRemoteCDM(type, deviceInfo, pssh);
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}
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}
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@ -589,17 +594,11 @@ MediaKeySession.prototype.generateRequest = function (initDataType, initData) {
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interceptType !== "DISABLED" &&
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!serviceCertFound
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) {
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const { device_type, system_id, security_level, host, secret, device_name } =
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widevineDeviceInfo;
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remoteCDM = new remoteWidevineCDM(
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device_type,
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system_id,
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security_level,
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host,
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secret,
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device_name
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remoteCDM = createAndOpenRemoteCDM(
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"Widevine",
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widevineDeviceInfo,
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foundWidevinePssh
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);
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remoteCDM.openSession();
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}
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if (
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!injectionSuccess &&
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@ -715,6 +714,81 @@ MediaKeySession.prototype.update = function (response) {
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return updatePromise;
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};
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// Helpers
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function detectDRMChallenge(body) {
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// Handles ArrayBuffer, Uint8Array, string, and JSON string
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// Returns: { type: "Widevine"|"PlayReady"|null, base64: string|null, bodyType: "buffer"|"string"|"json"|null }
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if (body instanceof ArrayBuffer || body instanceof Uint8Array) {
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const buffer = body instanceof Uint8Array ? body : new Uint8Array(body);
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const base64Body = window.btoa(String.fromCharCode(...buffer));
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if (base64Body.startsWith(DRM_SIGNATURES.WIDEVINE)) {
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return { type: "Widevine", base64: base64Body, bodyType: "buffer" };
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}
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if (base64Body.startsWith(DRM_SIGNATURES.PLAYREADY)) {
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return { type: "PlayReady", base64: base64Body, bodyType: "buffer" };
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}
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} else if (typeof body === "string" && !isJson(body)) {
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const base64EncodedBody = btoa(body);
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if (base64EncodedBody.startsWith(DRM_SIGNATURES.WIDEVINE)) {
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return { type: "Widevine", base64: base64EncodedBody, bodyType: "string" };
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}
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if (base64EncodedBody.startsWith(DRM_SIGNATURES.PLAYREADY)) {
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return { type: "PlayReady", base64: base64EncodedBody, bodyType: "string" };
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}
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} else if (typeof body === "string" && isJson(body)) {
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const jsonBody = JSON.parse(body);
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if (jsonContainsValue(jsonBody, DRM_SIGNATURES.WIDEVINE)) {
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return { type: "Widevine", base64: null, bodyType: "json" };
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}
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if (jsonContainsValue(jsonBody, DRM_SIGNATURES.PLAYREADY)) {
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return { type: "PlayReady", base64: null, bodyType: "json" };
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}
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}
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return { type: null, base64: null, bodyType: null };
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}
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function handleLicenseMode({
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drmInfo,
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body,
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setBody, // function to set the new body (for fetch: (b) => config.body = b, for XHR: (b) => originalSend.call(this, b))
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urlOrResource,
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getWidevinePssh,
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getPlayreadyPssh,
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widevineDeviceInfo,
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playreadyDeviceInfo,
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}) {
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foundChallengeInBody = true;
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window.postMessage({ type: "__LICENSE_URL__", data: urlOrResource }, "*");
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// Create remoteCDM if needed
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if (!remoteCDM) {
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if (drmInfo.type === "Widevine") {
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remoteCDM = createAndOpenRemoteCDM("Widevine", widevineDeviceInfo, getWidevinePssh());
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}
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if (drmInfo.type === "PlayReady") {
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remoteCDM = createAndOpenRemoteCDM(
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"PlayReady",
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playreadyDeviceInfo,
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getPlayreadyPssh()
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);
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}
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}
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if (remoteCDM && remoteCDM.challenge === null) {
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remoteCDM.getChallenge(getWidevinePssh());
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}
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// Inject the new challenge into the request body
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if (drmInfo.bodyType === "json") {
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const jsonBody = JSON.parse(body);
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const injectedBody = jsonReplaceValue(jsonBody, remoteCDM.challenge);
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setBody(JSON.stringify(injectedBody));
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} else if (drmInfo.bodyType === "buffer") {
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setBody(base64ToUint8Array(remoteCDM.challenge));
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} else {
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setBody(atob(remoteCDM.challenge));
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}
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}
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// fetch POST interceptor
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(function () {
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const originalFetch = window.fetch;
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@ -725,144 +799,14 @@ MediaKeySession.prototype.update = function (response) {
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if (method === "POST") {
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let body = config.body;
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if (body) {
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if (body instanceof ArrayBuffer || body instanceof Uint8Array) {
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const buffer = body instanceof Uint8Array ? body : new Uint8Array(body);
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const base64Body = window.btoa(String.fromCharCode(...buffer));
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if (
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(base64Body.startsWith(DRM_SIGNATURES.WIDEVINE) ||
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base64Body.startsWith(DRM_SIGNATURES.PLAYREADY)) &&
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(!remoteCDM ||
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remoteCDM.challenge === null ||
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base64Body !== remoteCDM.challenge) &&
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interceptType === "EME"
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) {
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foundChallengeInBody = true;
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window.postMessage({ type: "__LICENSE_URL__", data: resource }, "*");
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// Block the request
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return;
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}
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if (
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(base64Body.startsWith(DRM_SIGNATURES.WIDEVINE) ||
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base64Body.startsWith(DRM_SIGNATURES.PLAYREADY)) &&
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interceptType == "LICENSE" &&
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!foundChallengeInBody
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) {
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foundChallengeInBody = true;
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window.postMessage({ type: "__LICENSE_URL__", data: resource }, "*");
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if (!remoteCDM) {
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if (base64Body.startsWith(DRM_SIGNATURES.WIDEVINE)) {
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const {
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device_type,
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system_id,
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security_level,
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host,
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secret,
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device_name,
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} = widevineDeviceInfo;
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remoteCDM = new remoteWidevineCDM(
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device_type,
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system_id,
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security_level,
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host,
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secret,
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device_name
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);
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remoteCDM.openSession();
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remoteCDM.getChallenge(foundWidevinePssh);
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}
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if (base64Body.startsWith(DRM_SIGNATURES.PLAYREADY)) {
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const { security_level, host, secret, device_name } =
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playreadyDeviceInfo;
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remoteCDM = new remotePlayReadyCDM(
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security_level,
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host,
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secret,
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device_name
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);
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remoteCDM.openSession();
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remoteCDM.getChallenge(foundPlayreadyPssh);
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}
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}
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if (remoteCDM && remoteCDM.challenge === null) {
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remoteCDM.getChallenge(foundWidevinePssh);
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}
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const injectedBody = base64ToUint8Array(remoteCDM.challenge);
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config.body = injectedBody;
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return originalFetch(resource, config);
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}
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}
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if (typeof body === "string" && !isJson(body)) {
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const base64EncodedBody = btoa(body);
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if (
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(base64EncodedBody.startsWith(DRM_SIGNATURES.WIDEVINE) ||
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base64EncodedBody.startsWith(DRM_SIGNATURES.PLAYREADY)) &&
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(!remoteCDM ||
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remoteCDM.challenge === null ||
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base64EncodedBody !== remoteCDM.challenge) &&
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interceptType === "EME"
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) {
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foundChallengeInBody = true;
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window.postMessage({ type: "__LICENSE_URL__", data: resource }, "*");
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// Block the request
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return;
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}
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if (
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(base64EncodedBody.startsWith(DRM_SIGNATURES.WIDEVINE) ||
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base64EncodedBody.startsWith(DRM_SIGNATURES.PLAYREADY)) &&
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interceptType == "LICENSE" &&
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!foundChallengeInBody
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) {
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foundChallengeInBody = true;
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window.postMessage({ type: "__LICENSE_URL__", data: resource }, "*");
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if (!remoteCDM) {
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if (base64EncodedBody.startsWith(DRM_SIGNATURES.WIDEVINE)) {
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const {
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device_type,
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system_id,
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security_level,
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host,
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secret,
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device_name,
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} = widevineDeviceInfo;
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remoteCDM = new remoteWidevineCDM(
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device_type,
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system_id,
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security_level,
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host,
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secret,
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device_name
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);
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remoteCDM.openSession();
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remoteCDM.getChallenge(foundWidevinePssh);
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}
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if (base64EncodedBody.startsWith(DRM_SIGNATURES.PLAYREADY)) {
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const { security_level, host, secret, device_name } =
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playreadyDeviceInfo;
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remoteCDM = new remotePlayReadyCDM(
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security_level,
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host,
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secret,
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device_name
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);
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remoteCDM.openSession();
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remoteCDM.getChallenge(foundPlayreadyPssh);
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}
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}
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if (remoteCDM && remoteCDM.challenge === null) {
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remoteCDM.getChallenge(foundWidevinePssh);
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}
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const injectedBody = atob(remoteCDM.challenge);
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config.body = injectedBody;
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return originalFetch(resource, config);
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}
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}
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if (typeof body === "string" && isJson(body)) {
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const jsonBody = JSON.parse(body);
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const drmInfo = detectDRMChallenge(body);
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// EME mode: block the request if a DRM challenge is detected
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if (
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(jsonContainsValue(jsonBody, DRM_SIGNATURES.WIDEVINE) ||
|
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jsonContainsValue(jsonBody, DRM_SIGNATURES.PLAYREADY)) &&
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(!remoteCDM || remoteCDM.challenge === null) &&
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drmInfo.type &&
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(!remoteCDM ||
|
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remoteCDM.challenge === null ||
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drmInfo.base64 !== remoteCDM.challenge) &&
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interceptType === "EME"
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) {
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foundChallengeInBody = true;
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@ -871,54 +815,21 @@ MediaKeySession.prototype.update = function (response) {
|
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return;
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}
|
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|
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if (
|
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(jsonContainsValue(jsonBody, DRM_SIGNATURES.WIDEVINE) ||
|
||||
jsonContainsValue(jsonBody, DRM_SIGNATURES.PLAYREADY)) &&
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interceptType === "LICENSE" &&
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!foundChallengeInBody
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) {
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foundChallengeInBody = true;
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window.postMessage({ type: "__LICENSE_URL__", data: resource }, "*");
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if (!remoteCDM) {
|
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if (jsonContainsValue(jsonBody, DRM_SIGNATURES.WIDEVINE)) {
|
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const {
|
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device_type,
|
||||
system_id,
|
||||
security_level,
|
||||
host,
|
||||
secret,
|
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device_name,
|
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} = widevineDeviceInfo;
|
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remoteCDM = new remoteWidevineCDM(
|
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device_type,
|
||||
system_id,
|
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security_level,
|
||||
host,
|
||||
secret,
|
||||
device_name
|
||||
);
|
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remoteCDM.openSession();
|
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remoteCDM.getChallenge(foundWidevinePssh);
|
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}
|
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if (jsonContainsValue(jsonBody, DRM_SIGNATURES.PLAYREADY)) {
|
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const { security_level, host, secret, device_name } =
|
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playreadyDeviceInfo;
|
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remoteCDM = new remotePlayReadyCDM(
|
||||
security_level,
|
||||
host,
|
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secret,
|
||||
device_name
|
||||
);
|
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remoteCDM.openSession();
|
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remoteCDM.getChallenge(foundPlayreadyPssh);
|
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}
|
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}
|
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if (remoteCDM && remoteCDM.challenge === null) {
|
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remoteCDM.getChallenge(foundWidevinePssh);
|
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}
|
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const injectedBody = jsonReplaceValue(jsonBody, remoteCDM.challenge);
|
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config.body = JSON.stringify(injectedBody);
|
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}
|
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// LICENSE mode: replace the challenge in the request
|
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if (drmInfo.type && interceptType === "LICENSE" && !foundChallengeInBody) {
|
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handleLicenseMode({
|
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drmInfo,
|
||||
body,
|
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setBody: (b) => {
|
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config.body = b;
|
||||
},
|
||||
urlOrResource: resource,
|
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getWidevinePssh: () => foundWidevinePssh,
|
||||
getPlayreadyPssh: () => foundPlayreadyPssh,
|
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widevineDeviceInfo,
|
||||
playreadyDeviceInfo,
|
||||
});
|
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return originalFetch(resource, config);
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -941,144 +852,14 @@ MediaKeySession.prototype.update = function (response) {
|
||||
XMLHttpRequest.prototype.send = function (body) {
|
||||
if (this._method && this._method.toUpperCase() === "POST") {
|
||||
if (body) {
|
||||
if (body instanceof ArrayBuffer || body instanceof Uint8Array) {
|
||||
const buffer = body instanceof Uint8Array ? body : new Uint8Array(body);
|
||||
const base64Body = window.btoa(String.fromCharCode(...buffer));
|
||||
const drmInfo = detectDRMChallenge(body);
|
||||
|
||||
// EME mode: block the request if a DRM challenge is detected
|
||||
if (
|
||||
(base64Body.startsWith(DRM_SIGNATURES.WIDEVINE) ||
|
||||
base64Body.startsWith(DRM_SIGNATURES.PLAYREADY)) &&
|
||||
drmInfo.type &&
|
||||
(!remoteCDM ||
|
||||
remoteCDM.challenge === null ||
|
||||
base64Body !== remoteCDM.challenge) &&
|
||||
interceptType === "EME"
|
||||
) {
|
||||
foundChallengeInBody = true;
|
||||
window.postMessage({ type: "__LICENSE_URL__", data: this._url }, "*");
|
||||
// Block the request
|
||||
return;
|
||||
}
|
||||
if (
|
||||
(base64Body.startsWith(DRM_SIGNATURES.WIDEVINE) ||
|
||||
base64Body.startsWith(DRM_SIGNATURES.PLAYREADY)) &&
|
||||
interceptType == "LICENSE" &&
|
||||
!foundChallengeInBody
|
||||
) {
|
||||
foundChallengeInBody = true;
|
||||
window.postMessage({ type: "__LICENSE_URL__", data: this._url }, "*");
|
||||
if (!remoteCDM) {
|
||||
if (base64Body.startsWith(DRM_SIGNATURES.WIDEVINE)) {
|
||||
const {
|
||||
device_type,
|
||||
system_id,
|
||||
security_level,
|
||||
host,
|
||||
secret,
|
||||
device_name,
|
||||
} = widevineDeviceInfo;
|
||||
remoteCDM = new remoteWidevineCDM(
|
||||
device_type,
|
||||
system_id,
|
||||
security_level,
|
||||
host,
|
||||
secret,
|
||||
device_name
|
||||
);
|
||||
remoteCDM.openSession();
|
||||
remoteCDM.getChallenge(foundWidevinePssh);
|
||||
}
|
||||
if (base64Body.startsWith(DRM_SIGNATURES.PLAYREADY)) {
|
||||
const { security_level, host, secret, device_name } =
|
||||
playreadyDeviceInfo;
|
||||
remoteCDM = new remotePlayReadyCDM(
|
||||
security_level,
|
||||
host,
|
||||
secret,
|
||||
device_name
|
||||
);
|
||||
remoteCDM.openSession();
|
||||
remoteCDM.getChallenge(foundPlayreadyPssh);
|
||||
}
|
||||
}
|
||||
if (remoteCDM && remoteCDM.challenge === null) {
|
||||
remoteCDM.getChallenge(foundWidevinePssh);
|
||||
}
|
||||
const injectedBody = base64ToUint8Array(remoteCDM.challenge);
|
||||
return originalSend.call(this, injectedBody);
|
||||
}
|
||||
}
|
||||
|
||||
if (typeof body === "string" && !isJson(body)) {
|
||||
const base64EncodedBody = btoa(body);
|
||||
if (
|
||||
(base64EncodedBody.startsWith(DRM_SIGNATURES.WIDEVINE) ||
|
||||
base64EncodedBody.startsWith(DRM_SIGNATURES.PLAYREADY)) &&
|
||||
(!remoteCDM ||
|
||||
remoteCDM.challenge === null ||
|
||||
base64EncodedBody !== remoteCDM.challenge) &&
|
||||
interceptType === "EME"
|
||||
) {
|
||||
foundChallengeInBody = true;
|
||||
window.postMessage({ type: "__LICENSE_URL__", data: this._url }, "*");
|
||||
// Block the request
|
||||
return;
|
||||
}
|
||||
if (
|
||||
(base64EncodedBody.startsWith(DRM_SIGNATURES.WIDEVINE) ||
|
||||
base64EncodedBody.startsWith(DRM_SIGNATURES.PLAYREADY)) &&
|
||||
interceptType == "LICENSE" &&
|
||||
!foundChallengeInBody
|
||||
) {
|
||||
foundChallengeInBody = true;
|
||||
window.postMessage({ type: "__LICENSE_URL__", data: this._url }, "*");
|
||||
if (!remoteCDM) {
|
||||
if (base64EncodedBody.startsWith(DRM_SIGNATURES.WIDEVINE)) {
|
||||
const {
|
||||
device_type,
|
||||
system_id,
|
||||
security_level,
|
||||
host,
|
||||
secret,
|
||||
device_name,
|
||||
} = widevineDeviceInfo;
|
||||
remoteCDM = new remoteWidevineCDM(
|
||||
device_type,
|
||||
system_id,
|
||||
security_level,
|
||||
host,
|
||||
secret,
|
||||
device_name
|
||||
);
|
||||
remoteCDM.openSession();
|
||||
remoteCDM.getChallenge(foundWidevinePssh);
|
||||
}
|
||||
if (base64EncodedBody.startsWith(DRM_SIGNATURES.PLAYREADY)) {
|
||||
const { security_level, host, secret, device_name } =
|
||||
playreadyDeviceInfo;
|
||||
remoteCDM = new remotePlayReadyCDM(
|
||||
security_level,
|
||||
host,
|
||||
secret,
|
||||
device_name
|
||||
);
|
||||
remoteCDM.openSession();
|
||||
remoteCDM.getChallenge(foundPlayreadyPssh);
|
||||
}
|
||||
}
|
||||
if (remoteCDM && remoteCDM.challenge === null) {
|
||||
remoteCDM.getChallenge(foundWidevinePssh);
|
||||
}
|
||||
const injectedBody = atob(remoteCDM.challenge);
|
||||
return originalSend.call(this, injectedBody);
|
||||
}
|
||||
}
|
||||
|
||||
if (typeof body === "string" && isJson(body)) {
|
||||
const jsonBody = JSON.parse(body);
|
||||
|
||||
if (
|
||||
(jsonContainsValue(jsonBody, DRM_SIGNATURES.WIDEVINE) ||
|
||||
jsonContainsValue(jsonBody, DRM_SIGNATURES.PLAYREADY)) &&
|
||||
(!remoteCDM || remoteCDM.challenge === null) &&
|
||||
drmInfo.base64 !== remoteCDM.challenge) &&
|
||||
interceptType === "EME"
|
||||
) {
|
||||
foundChallengeInBody = true;
|
||||
@ -1087,54 +868,18 @@ MediaKeySession.prototype.update = function (response) {
|
||||
return;
|
||||
}
|
||||
|
||||
if (
|
||||
(jsonContainsValue(jsonBody, DRM_SIGNATURES.WIDEVINE) ||
|
||||
jsonContainsValue(jsonBody, DRM_SIGNATURES.PLAYREADY)) &&
|
||||
interceptType === "LICENSE" &&
|
||||
!foundChallengeInBody
|
||||
) {
|
||||
foundChallengeInBody = true;
|
||||
window.postMessage({ type: "__LICENSE_URL__", data: this._url }, "*");
|
||||
if (!remoteCDM) {
|
||||
if (jsonContainsValue(jsonBody, DRM_SIGNATURES.WIDEVINE)) {
|
||||
const {
|
||||
device_type,
|
||||
system_id,
|
||||
security_level,
|
||||
host,
|
||||
secret,
|
||||
device_name,
|
||||
} = widevineDeviceInfo;
|
||||
remoteCDM = new remoteWidevineCDM(
|
||||
device_type,
|
||||
system_id,
|
||||
security_level,
|
||||
host,
|
||||
secret,
|
||||
device_name
|
||||
);
|
||||
remoteCDM.openSession();
|
||||
remoteCDM.getChallenge(foundWidevinePssh);
|
||||
}
|
||||
if (jsonContainsValue(jsonBody, DRM_SIGNATURES.PLAYREADY)) {
|
||||
const { security_level, host, secret, device_name } =
|
||||
playreadyDeviceInfo;
|
||||
remoteCDM = new remotePlayReadyCDM(
|
||||
security_level,
|
||||
host,
|
||||
secret,
|
||||
device_name
|
||||
);
|
||||
remoteCDM.openSession();
|
||||
remoteCDM.getChallenge(foundPlayreadyPssh);
|
||||
}
|
||||
}
|
||||
if (remoteCDM && remoteCDM.challenge === null) {
|
||||
remoteCDM.getChallenge(foundWidevinePssh);
|
||||
}
|
||||
const injectedBody = jsonReplaceValue(jsonBody, remoteCDM.challenge);
|
||||
return originalSend.call(this, JSON.stringify(injectedBody));
|
||||
}
|
||||
// LICENSE mode: replace the challenge in the request
|
||||
if (drmInfo.type && interceptType === "LICENSE" && !foundChallengeInBody) {
|
||||
return handleLicenseMode({
|
||||
drmInfo,
|
||||
body,
|
||||
setBody: (b) => originalSend.call(this, b),
|
||||
urlOrResource: this._url,
|
||||
getWidevinePssh: () => foundWidevinePssh,
|
||||
getPlayreadyPssh: () => foundPlayreadyPssh,
|
||||
widevineDeviceInfo,
|
||||
playreadyDeviceInfo,
|
||||
});
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user