rx-player
Version:
Canal+ HTML5 Video Player
210 lines (209 loc) • 10 kB
JavaScript
;
var __assign = (this && this.__assign) || function () {
__assign = Object.assign || function(t) {
for (var s, i = 1, n = arguments.length; i < n; i++) {
s = arguments[i];
for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
t[p] = s[p];
}
return t;
};
return __assign.apply(this, arguments);
};
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
var __generator = (this && this.__generator) || function (thisArg, body) {
var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g = Object.create((typeof Iterator === "function" ? Iterator : Object).prototype);
return g.next = verb(0), g["throw"] = verb(1), g["return"] = verb(2), typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
function verb(n) { return function (v) { return step([n, v]); }; }
function step(op) {
if (f) throw new TypeError("Generator is already executing.");
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if (y = 0, t) op = [op[0] & 2, t.value];
switch (op[0]) {
case 0: case 1: t = op; break;
case 4: _.label++; return { value: op[1], done: false };
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op = body.call(thisArg, _);
} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
}
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.addSegmentIntegrityChecks = addSegmentIntegrityChecks;
exports.addManifestIntegrityChecks = addManifestIntegrityChecks;
var errors_1 = require("../../errors");
var global_scope_1 = require("../../utils/global_scope");
var is_null_or_undefined_1 = require("../../utils/is_null_or_undefined");
var task_canceller_1 = require("../../utils/task_canceller");
var check_isobmff_integrity_1 = require("../utils/check_isobmff_integrity");
var infer_segment_container_1 = require("../utils/infer_segment_container");
/**
* Add multiple checks on the response given by the `segmentLoader` in argument.
* If the response appear to be corrupted, the returned Promise will reject with
* an error with an `INTEGRITY_ERROR` code.
* @param {Function} segmentLoader
* @returns {Function}
*/
function addSegmentIntegrityChecks(segmentLoader) {
return function (url, context, loaderOptions, initialCancelSignal, callbacks) {
return new Promise(function (resolve, reject) {
var requestCanceller = new task_canceller_1.default();
var unlinkCanceller = requestCanceller.linkToSignal(initialCancelSignal);
requestCanceller.signal.register(reject);
segmentLoader(url, context, loaderOptions, requestCanceller.signal, __assign(__assign({}, callbacks), { onNewChunk: function (data) {
try {
throwOnIntegrityError(data);
callbacks.onNewChunk(data);
}
catch (err) {
// Do not reject with a `CancellationError` after cancelling the request
cleanUpCancellers();
// Cancel the request
requestCanceller.cancel();
// Reject with thrown error
reject(err);
}
} })).then(function (info) {
cleanUpCancellers();
if (requestCanceller.isUsed()) {
return;
}
if (info.resultType === "segment-loaded") {
try {
throwOnIntegrityError(info.resultData.responseData);
}
catch (err) {
reject(err);
return;
}
}
resolve(info);
}, function (err) {
cleanUpCancellers();
reject(err);
});
function cleanUpCancellers() {
requestCanceller.signal.deregister(reject);
unlinkCanceller();
}
});
/**
* If the data's seems to be corrupted, throws an `INTEGRITY_ERROR` error.
* @param {*} data
*/
function throwOnIntegrityError(data) {
if ((!(data instanceof ArrayBuffer) && !(data instanceof Uint8Array)) ||
(0, infer_segment_container_1.default)(context.type, context.mimeType) !== "mp4") {
return;
}
(0, check_isobmff_integrity_1.default)(new Uint8Array(data), context.segment.isInit);
}
};
}
/**
* Add multiple checks on the response given by the `manifestLoader` in argument.
* If the response appear to be corrupted, the returned Promise will reject with
* an error with an `INTEGRITY_ERROR` code.
* @param {Function} manifestLoader
* @returns {Function}
*/
function addManifestIntegrityChecks(manifestLoader) {
var _this = this;
return function (url, options, initialCancelSignal) { return __awaiter(_this, void 0, void 0, function () {
/**
* If the data's seems to be corrupted, throws an `INTEGRITY_ERROR` error.
* @param {*} data
*/
function throwOnIntegrityError(data) {
if (typeof data === "string") {
var currOffset = data.length - 1;
var expectedStrings = ["</", "MPD", ">"];
for (var i = expectedStrings.length - 1; i >= 0; i--) {
var currentExpectedStr = expectedStrings[i];
while (isCharXmlWhiteSpace(data[currOffset])) {
currOffset--;
}
for (var j = currentExpectedStr.length - 1; j >= 0; j--) {
if (data[currOffset] !== currentExpectedStr[j]) {
throw new Error("INTEGRITY_ERROR MPD does not end with </MPD>");
}
else {
currOffset--;
}
}
}
}
else if (data instanceof ArrayBuffer) {
var currOffset = data.byteLength - 1;
var dv = new DataView(data);
var expectedCharGroups = [[0x3c, 0x2f], [0x4d, 0x50, 0x44], [0x3e]];
for (var i = expectedCharGroups.length - 1; i >= 0; i--) {
var currentExpectedCharGroup = expectedCharGroups[i];
while (isUtf8XmlWhiteSpace(dv.getUint8(currOffset))) {
currOffset--;
}
for (var j = currentExpectedCharGroup.length - 1; j >= 0; j--) {
if (dv.getUint8(currOffset) !== currentExpectedCharGroup[j]) {
throw new Error("INTEGRITY_ERROR MPD does not end with </MPD>");
}
else {
currOffset--;
}
}
}
}
else if (!(0, is_null_or_undefined_1.default)(global_scope_1.default.Document) &&
data instanceof global_scope_1.default.Document) {
if (data.documentElement.nodeName !== "MPD") {
throw new errors_1.OtherError("INTEGRITY_ERROR", "MPD does not end with </MPD>");
}
}
}
var res;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, manifestLoader(url, options, initialCancelSignal)];
case 1:
res = _a.sent();
throwOnIntegrityError(res.responseData);
return [2 /*return*/, res];
}
});
}); };
}
/**
* Returns `true` if the character given can be considered as
* whitespace according to the XML spec.
* @param {string} char
* @returns {boolean}
*/
function isCharXmlWhiteSpace(char) {
return char === " " || char === "\t" || char === "\r" || char === "\n";
}
/**
* Returns `true` if the character given can be considered as an ASCII
* whitespace according to the HTML spec.
* @param {string} char
* @returns {boolean}
*/
function isUtf8XmlWhiteSpace(char) {
return char === 0x20 || char === 0x9 || char === 0xd || char === 0xa;
}