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How to use getSimpleConfigurationForInitDataType method in wpt

Best JavaScript code snippet using wpt

encrypted-media-utils.js

Source:encrypted-media-utils.js

...14// or false if not.15function isInitDataTypeSupported(initDataType)16{17    return navigator.requestMediaKeySystemAccess(18                        "org.w3.clearkey", getSimpleConfigurationForInitDataType(initDataType))19        .then(function() { return true; }, function() { return false; });20}21function getInitData(initDataType)22{23  if (initDataType == 'webm') {24      return new Uint8Array([25          0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,26          0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F27      ]);28  }29  if (initDataType == 'cenc') {30      return new Uint8Array([31          0x00, 0x00, 0x00, 0x00,                          // size = 032          0x70, 0x73, 0x73, 0x68,                          // 'pssh'33          0x01,                                            // version = 134          0x00, 0x00, 0x00,                                // flags35          0x10, 0x77, 0xEF, 0xEC, 0xC0, 0xB2, 0x4D, 0x02,  // Common SystemID36          0xAC, 0xE3, 0x3C, 0x1E, 0x52, 0xE2, 0xFB, 0x4B,37          0x00, 0x00, 0x00, 0x01,                          // key count38          0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,  // key39          0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,40          0x00, 0x00, 0x00, 0x00                           // datasize41     ]);42  }43  if (initDataType == 'keyids') {44      var keyId = new Uint8Array([45          0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,46          0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F47      ]);48      return stringToUint8Array(createKeyIDs(keyId));49  }50  throw 'initDataType ' + initDataType + ' not supported.';51}52// Returns an array of audioCapabilities that includes entries for a set of53// codecs that should cover all user agents.54function getPossibleAudioCapabilities()55{56    return [57        { contentType: 'audio/mp4; codecs="mp4a.40.2"' },58        { contentType: 'audio/webm; codecs="opus"' },59    ];60}61// Returns a trivial MediaKeySystemConfiguration that should be accepted,62// possibly as a subset of the specified capabilities, by all user agents.63function getSimpleConfiguration()64{65    return [ {66        initDataTypes : [ 'webm', 'cenc', 'keyids' ],67        audioCapabilities: getPossibleAudioCapabilities()68    } ];69}70// Returns a MediaKeySystemConfiguration for |initDataType| that should be71// accepted, possibly as a subset of the specified capabilities, by all72// user agents.73function getSimpleConfigurationForInitDataType(initDataType)74{75    return [ {76        initDataTypes: [ initDataType ],77        audioCapabilities: getPossibleAudioCapabilities()78    } ];79}80// Returns a MediaKeySystemConfiguration for |mediaFile| that specifies81// both audio and video capabilities for the specified file..82function getConfigurationForFile(mediaFile)83{84    if (mediaFile.toLowerCase().endsWith('webm')) {85        return [ {86            initDataTypes: [ 'webm' ],87            audioCapabilities: [ { contentType: 'audio/webm; codecs="opus"' } ],88            videoCapabilities: [ { contentType: 'video/webm; codecs="vp8"' } ]89        } ];90    }91    // NOTE: Supporting other mediaFormats is not currently implemented as92    // Chromium only tests with WebM files.93    throw 'mediaFile ' + mediaFile + ' not supported.';94}95function waitForEventAndRunStep(eventName, element, func, stepTest)96{97    var eventCallback = function(event) {98        if (func)99            func(event);100    }101    if (stepTest)102        eventCallback = stepTest.step_func(eventCallback);103    element.addEventListener(eventName, eventCallback, true);104}105// Copied from LayoutTests/resources/js-test.js.106// See it for details of why this is necessary.107function asyncGC(callback)108{109    GCController.collectAll();110    setTimeout(callback, 0);111}112function createGCPromise()113{114    // Run gc() as a promise.115    return new Promise(116        function(resolve, reject) {117            asyncGC(resolve);118        });119}120function delayToAllowEventProcessingPromise()121{122    return new Promise(123        function(resolve, reject) {124            setTimeout(resolve, 0);125        });126}127function stringToUint8Array(str)128{129    var result = new Uint8Array(str.length);130    for(var i = 0; i < str.length; i++) {131        result[i] = str.charCodeAt(i);132    }133    return result;134}135function arrayBufferAsString(buffer)136{137    // MediaKeySession.keyStatuses iterators return an ArrayBuffer,138    // so convert it into a printable string.139    return String.fromCharCode.apply(null, new Uint8Array(buffer));140}141function dumpKeyStatuses(keyStatuses)142{143    consoleWrite("for (var entry of keyStatuses)");144    for (var entry of keyStatuses) {145        consoleWrite(arrayBufferAsString(entry[0]) + ": " + entry[1]);146    }147    consoleWrite("for (var keyId of keyStatuses.keys())");148    for (var keyId of keyStatuses.keys()) {149        consoleWrite(arrayBufferAsString(keyId));150    }151    consoleWrite("for (var status of keyStatuses.values())");152    for (var status of keyStatuses.values()) {153        consoleWrite(status);154    }155    consoleWrite("for (var entry of keyStatuses.entries())");156    for (var entry of keyStatuses.entries()) {157        consoleWrite(arrayBufferAsString(entry[0]) + ": " + entry[1]);158    }159    consoleWrite("keyStatuses.forEach()");160    keyStatuses.forEach(function(status, keyId) {161        consoleWrite(arrayBufferAsString(keyId) + ": " + status);162    });163}164// Verify that |keyStatuses| contains just the keys in |keys.expected|165// and none of the keys in |keys.unexpected|. All keys should have status166// 'usable'. Example call: verifyKeyStatuses(mediaKeySession.keyStatuses,167// { expected: [key1], unexpected: [key2] });168function verifyKeyStatuses(keyStatuses, keys)169{170    var expected = keys.expected || [];171    var unexpected = keys.unexpected || [];172    // |keyStatuses| should have same size as number of |keys.expected|.173    assert_equals(keyStatuses.size, expected.length);174    // All |keys.expected| should be found.175    expected.map(function(key) {176        assert_true(keyStatuses.has(key));177        assert_equals(keyStatuses.get(key), 'usable');178    });179    // All |keys.unexpected| should not be found.180    unexpected.map(function(key) {181        assert_false(keyStatuses.has(key));182        assert_equals(keyStatuses.get(key), undefined);183    });184}185// Encodes |data| into base64url string. There is no '=' padding, and the186// characters '-' and '_' must be used instead of '+' and '/', respectively.187function base64urlEncode(data)188{189    var result = btoa(String.fromCharCode.apply(null, data));190    return result.replace(/=+$/g, '').replace(/\+/g, "-").replace(/\//g, "_");191}192// Decode |encoded| using base64url decoding.193function base64urlDecode(encoded)194{195    return atob(encoded.replace(/\-/g, "+").replace(/\_/g, "/"));196}197// For Clear Key, the License Format is a JSON Web Key (JWK) Set, which contains198// a set of cryptographic keys represented by JSON. These helper functions help199// wrap raw keys into a JWK set.200// See:201// https://w3c.github.io/encrypted-media/#clear-key-license-format202// http://tools.ietf.org/html/draft-ietf-jose-json-web-key203//204// Creates a JWK from raw key ID and key.205// |keyId| and |key| are expected to be ArrayBufferViews, not base64-encoded.206function createJWK(keyId, key)207{208    var jwk = '{"kty":"oct","alg":"A128KW","kid":"';209    jwk += base64urlEncode(keyId);210    jwk += '","k":"';211    jwk += base64urlEncode(key);212    jwk += '"}';213    return jwk;214}215// Creates a JWK Set from multiple JWKs.216function createJWKSet()217{218    var jwkSet = '{"keys":[';219    for (var i = 0; i < arguments.length; i++) {220        if (i != 0)221            jwkSet += ',';222        jwkSet += arguments[i];223    }224    jwkSet += ']}';225    return jwkSet;226}227// Clear Key can also support Key IDs Initialization Data.228// ref: http://w3c.github.io/encrypted-media/keyids-format.html229// Each parameter is expected to be a key id in an Uint8Array.230function createKeyIDs()231{232    var keyIds = '{"kids":["';233    for (var i = 0; i < arguments.length; i++) {234        if (i != 0)235            keyIds += '","';236        keyIds += base64urlEncode(arguments[i]);237    }238    keyIds += '"]}';239    return keyIds;240}241function forceTestFailureFromPromise(test, error, message)242{243    // Promises convert exceptions into rejected Promises. Since there is244    // currently no way to report a failed test in the test harness, errors245    // are reported using force_timeout().246    if (message)247        consoleWrite(message + ': ' + error.message);248    else if (error)249        consoleWrite(error);250    test.force_timeout();251    test.done();252}253function extractSingleKeyIdFromMessage(message)254{255    var json = JSON.parse(String.fromCharCode.apply(null, new Uint8Array(message)));256    // Decode the first element of 'kids'.257    assert_equals(1, json.kids.length);258    var decoded_key = base64urlDecode(json.kids[0]);259    // Convert to an Uint8Array and return it.260    return stringToUint8Array(decoded_key);261}262// Create a MediaKeys object for Clear Key with 1 session. KeyId and key263// required for the video are already known and provided. Returns a promise264// that resolves to the MediaKeys object created.265function createMediaKeys(keyId, key)266{267    var mediaKeys;268    var mediaKeySession;269    var request = stringToUint8Array(createKeyIDs(keyId));270    var jwkSet = stringToUint8Array(createJWKSet(createJWK(keyId, key)));271    return navigator.requestMediaKeySystemAccess('org.w3.clearkey', getSimpleConfigurationForInitDataType('keyids')).then(function(access) {272        return access.createMediaKeys();273    }).then(function(result) {274        mediaKeys = result;275        mediaKeySession = mediaKeys.createSession();276        return mediaKeySession.generateRequest('keyids', request);277    }).then(function() {278        return mediaKeySession.update(jwkSet);279    }).then(function() {280        return Promise.resolve(mediaKeys);281    });282}283// Play the specified |content| on |video|. Returns a promise that is resolved284// after the video plays for |duration| seconds.285function playVideoAndWaitForTimeupdate(video, content, duration)...

check-initdata-type.js

Source:check-initdata-type.js

...5        return isInitDataTypeSupported(initDataType).then(function(result) {6            // If |initDataType| is not supported, simply succeed.7            if (!result)8                return Promise.resolve('Not supported');9            return navigator.requestMediaKeySystemAccess( config.keysystem, getSimpleConfigurationForInitDataType(initDataType))10                .then(function(access) {11                    return access.createMediaKeys();12                }).then(function(mediaKeys) {13                    var mediaKeySession = mediaKeys.createSession();14                    var initData = getInitData(initDataType);15                    return mediaKeySession.generateRequest(initDataType, initData);16                });17        });18    }19    promise_test(function()20    {21        return checkInitDataType('webm');22    }, testnamePrefix( qualifier, config.keysystem )  + ' support for "webm".');23    promise_test(function()...

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