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refactor: consolidate remote cdm initialization into a helper function

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This commit is contained in:
voldemort 2025-07-21 18:28:59 +07:00
parent 9e071365e3
commit f8712d7726
1 changed files with 76 additions and 185 deletions
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243
src/inject.js
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@ -537,12 +537,11 @@ function postDRMTypeAndPssh(type, pssh) {
window.postMessage({ type: "__PSSH_DATA__", data: pssh }, "*"); window.postMessage({ type: "__PSSH_DATA__", data: pssh }, "*");
} }
function ensureRemoteCDM(type, deviceInfo, pssh) { function createAndOpenRemoteCDM(type, deviceInfo, pssh) {
if (!remoteCDM) { let cdm;
if (type === "Widevine") { if (type === "Widevine") {
const { device_type, system_id, security_level, host, secret, device_name } = const { device_type, system_id, security_level, host, secret, device_name } = deviceInfo;
deviceInfo; cdm = new remoteWidevineCDM(
remoteCDM = new remoteWidevineCDM(
device_type, device_type,
system_id, system_id,
security_level, security_level,
@ -550,14 +549,20 @@ function ensureRemoteCDM(type, deviceInfo, pssh) {
secret, secret,
device_name device_name
); );
remoteCDM.openSession(); cdm.openSession();
remoteCDM.getChallenge(pssh); cdm.getChallenge(pssh);
} else if (type === "PlayReady") { } else if (type === "PlayReady") {
const { security_level, host, secret, device_name } = deviceInfo; const { security_level, host, secret, device_name } = deviceInfo;
remoteCDM = new remotePlayReadyCDM(security_level, host, secret, device_name); cdm = new remotePlayReadyCDM(security_level, host, secret, device_name);
remoteCDM.openSession(); cdm.openSession();
remoteCDM.getChallenge(pssh); cdm.getChallenge(pssh);
} }
return cdm;
}
function ensureRemoteCDM(type, deviceInfo, pssh) {
if (!remoteCDM) {
remoteCDM = createAndOpenRemoteCDM(type, deviceInfo, pssh);
} }
} }
@ -589,17 +594,11 @@ MediaKeySession.prototype.generateRequest = function (initDataType, initData) {
interceptType !== "DISABLED" && interceptType !== "DISABLED" &&
!serviceCertFound !serviceCertFound
) { ) {
const { device_type, system_id, security_level, host, secret, device_name } = remoteCDM = createAndOpenRemoteCDM(
widevineDeviceInfo; "Widevine",
remoteCDM = new remoteWidevineCDM( widevineDeviceInfo,
device_type, foundWidevinePssh
system_id,
security_level,
host,
secret,
device_name
); );
remoteCDM.openSession();
} }
if ( if (
!injectionSuccess && !injectionSuccess &&
@ -751,36 +750,18 @@ MediaKeySession.prototype.update = function (response) {
window.postMessage({ type: "__LICENSE_URL__", data: resource }, "*"); window.postMessage({ type: "__LICENSE_URL__", data: resource }, "*");
if (!remoteCDM) { if (!remoteCDM) {
if (base64Body.startsWith(DRM_SIGNATURES.WIDEVINE)) { if (base64Body.startsWith(DRM_SIGNATURES.WIDEVINE)) {
const { remoteCDM = createAndOpenRemoteCDM(
device_type, "Widevine",
system_id, widevineDeviceInfo,
security_level, foundWidevinePssh
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)) { if (base64Body.startsWith(DRM_SIGNATURES.PLAYREADY)) {
const { security_level, host, secret, device_name } = remoteCDM = createAndOpenRemoteCDM(
playreadyDeviceInfo; "PlayReady",
remoteCDM = new remotePlayReadyCDM( playreadyDeviceInfo,
security_level, foundPlayreadyPssh
host,
secret,
device_name
); );
remoteCDM.openSession();
remoteCDM.getChallenge(foundPlayreadyPssh);
} }
} }
if (remoteCDM && remoteCDM.challenge === null) { if (remoteCDM && remoteCDM.challenge === null) {
@ -816,36 +797,18 @@ MediaKeySession.prototype.update = function (response) {
window.postMessage({ type: "__LICENSE_URL__", data: resource }, "*"); window.postMessage({ type: "__LICENSE_URL__", data: resource }, "*");
if (!remoteCDM) { if (!remoteCDM) {
if (base64EncodedBody.startsWith(DRM_SIGNATURES.WIDEVINE)) { if (base64EncodedBody.startsWith(DRM_SIGNATURES.WIDEVINE)) {
const { remoteCDM = createAndOpenRemoteCDM(
device_type, "Widevine",
system_id, widevineDeviceInfo,
security_level, foundWidevinePssh
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)) { if (base64EncodedBody.startsWith(DRM_SIGNATURES.PLAYREADY)) {
const { security_level, host, secret, device_name } = remoteCDM = createAndOpenRemoteCDM(
playreadyDeviceInfo; "PlayReady",
remoteCDM = new remotePlayReadyCDM( playreadyDeviceInfo,
security_level, foundPlayreadyPssh
host,
secret,
device_name
); );
remoteCDM.openSession();
remoteCDM.getChallenge(foundPlayreadyPssh);
} }
} }
if (remoteCDM && remoteCDM.challenge === null) { if (remoteCDM && remoteCDM.challenge === null) {
@ -881,36 +844,18 @@ MediaKeySession.prototype.update = function (response) {
window.postMessage({ type: "__LICENSE_URL__", data: resource }, "*"); window.postMessage({ type: "__LICENSE_URL__", data: resource }, "*");
if (!remoteCDM) { if (!remoteCDM) {
if (jsonContainsValue(jsonBody, DRM_SIGNATURES.WIDEVINE)) { if (jsonContainsValue(jsonBody, DRM_SIGNATURES.WIDEVINE)) {
const { remoteCDM = createAndOpenRemoteCDM(
device_type, "Widevine",
system_id, widevineDeviceInfo,
security_level, foundWidevinePssh
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)) { if (jsonContainsValue(jsonBody, DRM_SIGNATURES.PLAYREADY)) {
const { security_level, host, secret, device_name } = remoteCDM = createAndOpenRemoteCDM(
playreadyDeviceInfo; "PlayReady",
remoteCDM = new remotePlayReadyCDM( playreadyDeviceInfo,
security_level, foundPlayreadyPssh
host,
secret,
device_name
); );
remoteCDM.openSession();
remoteCDM.getChallenge(foundPlayreadyPssh);
} }
} }
if (remoteCDM && remoteCDM.challenge === null) { if (remoteCDM && remoteCDM.challenge === null) {
@ -967,36 +912,18 @@ MediaKeySession.prototype.update = function (response) {
window.postMessage({ type: "__LICENSE_URL__", data: this._url }, "*"); window.postMessage({ type: "__LICENSE_URL__", data: this._url }, "*");
if (!remoteCDM) { if (!remoteCDM) {
if (base64Body.startsWith(DRM_SIGNATURES.WIDEVINE)) { if (base64Body.startsWith(DRM_SIGNATURES.WIDEVINE)) {
const { remoteCDM = createAndOpenRemoteCDM(
device_type, "Widevine",
system_id, widevineDeviceInfo,
security_level, foundWidevinePssh
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)) { if (base64Body.startsWith(DRM_SIGNATURES.PLAYREADY)) {
const { security_level, host, secret, device_name } = remoteCDM = createAndOpenRemoteCDM(
playreadyDeviceInfo; "PlayReady",
remoteCDM = new remotePlayReadyCDM( playreadyDeviceInfo,
security_level, foundPlayreadyPssh
host,
secret,
device_name
); );
remoteCDM.openSession();
remoteCDM.getChallenge(foundPlayreadyPssh);
} }
} }
if (remoteCDM && remoteCDM.challenge === null) { if (remoteCDM && remoteCDM.challenge === null) {
@ -1032,36 +959,18 @@ MediaKeySession.prototype.update = function (response) {
window.postMessage({ type: "__LICENSE_URL__", data: this._url }, "*"); window.postMessage({ type: "__LICENSE_URL__", data: this._url }, "*");
if (!remoteCDM) { if (!remoteCDM) {
if (base64EncodedBody.startsWith(DRM_SIGNATURES.WIDEVINE)) { if (base64EncodedBody.startsWith(DRM_SIGNATURES.WIDEVINE)) {
const { remoteCDM = createAndOpenRemoteCDM(
device_type, "Widevine",
system_id, widevineDeviceInfo,
security_level, foundWidevinePssh
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)) { if (base64EncodedBody.startsWith(DRM_SIGNATURES.PLAYREADY)) {
const { security_level, host, secret, device_name } = remoteCDM = createAndOpenRemoteCDM(
playreadyDeviceInfo; "PlayReady",
remoteCDM = new remotePlayReadyCDM( playreadyDeviceInfo,
security_level, foundPlayreadyPssh
host,
secret,
device_name
); );
remoteCDM.openSession();
remoteCDM.getChallenge(foundPlayreadyPssh);
} }
} }
if (remoteCDM && remoteCDM.challenge === null) { if (remoteCDM && remoteCDM.challenge === null) {
@ -1097,36 +1006,18 @@ MediaKeySession.prototype.update = function (response) {
window.postMessage({ type: "__LICENSE_URL__", data: this._url }, "*"); window.postMessage({ type: "__LICENSE_URL__", data: this._url }, "*");
if (!remoteCDM) { if (!remoteCDM) {
if (jsonContainsValue(jsonBody, DRM_SIGNATURES.WIDEVINE)) { if (jsonContainsValue(jsonBody, DRM_SIGNATURES.WIDEVINE)) {
const { remoteCDM = createAndOpenRemoteCDM(
device_type, "Widevine",
system_id, widevineDeviceInfo,
security_level, foundWidevinePssh
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)) { if (jsonContainsValue(jsonBody, DRM_SIGNATURES.PLAYREADY)) {
const { security_level, host, secret, device_name } = remoteCDM = createAndOpenRemoteCDM(
playreadyDeviceInfo; "PlayReady",
remoteCDM = new remotePlayReadyCDM( playreadyDeviceInfo,
security_level, foundPlayreadyPssh
host,
secret,
device_name
); );
remoteCDM.openSession();
remoteCDM.getChallenge(foundPlayreadyPssh);
} }
} }
if (remoteCDM && remoteCDM.challenge === null) { if (remoteCDM && remoteCDM.challenge === null) {