Initial working version

2022-12-22 20:22:22 +11:00
parent ce9675a1cc
commit ced7fa5092
902 changed files with 150252 additions and 0 deletions
@@ -0,0 +1,19 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.ERROR_PACKET = exports.PACKET_TYPES_REVERSE = exports.PACKET_TYPES = void 0;
+const PACKET_TYPES = Object.create(null); // no Map = no polyfill
+exports.PACKET_TYPES = PACKET_TYPES;
+PACKET_TYPES["open"] = "0";
+PACKET_TYPES["close"] = "1";
+PACKET_TYPES["ping"] = "2";
+PACKET_TYPES["pong"] = "3";
+PACKET_TYPES["message"] = "4";
+PACKET_TYPES["upgrade"] = "5";
+PACKET_TYPES["noop"] = "6";
+const PACKET_TYPES_REVERSE = Object.create(null);
+exports.PACKET_TYPES_REVERSE = PACKET_TYPES_REVERSE;
+Object.keys(PACKET_TYPES).forEach(key => {
+    PACKET_TYPES_REVERSE[PACKET_TYPES[key]] = key;
+});
+const ERROR_PACKET = { type: "error", data: "parser error" };
+exports.ERROR_PACKET = ERROR_PACKET;
@@ -0,0 +1,51 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+const commons_js_1 = require("./commons.js");
+const base64_arraybuffer_1 = require("base64-arraybuffer");
+const withNativeArrayBuffer = typeof ArrayBuffer === "function";
+const decodePacket = (encodedPacket, binaryType) => {
+    if (typeof encodedPacket !== "string") {
+        return {
+            type: "message",
+            data: mapBinary(encodedPacket, binaryType)
+        };
+    }
+    const type = encodedPacket.charAt(0);
+    if (type === "b") {
+        return {
+            type: "message",
+            data: decodeBase64Packet(encodedPacket.substring(1), binaryType)
+        };
+    }
+    const packetType = commons_js_1.PACKET_TYPES_REVERSE[type];
+    if (!packetType) {
+        return commons_js_1.ERROR_PACKET;
+    }
+    return encodedPacket.length > 1
+        ? {
+            type: commons_js_1.PACKET_TYPES_REVERSE[type],
+            data: encodedPacket.substring(1)
+        }
+        : {
+            type: commons_js_1.PACKET_TYPES_REVERSE[type]
+        };
+};
+const decodeBase64Packet = (data, binaryType) => {
+    if (withNativeArrayBuffer) {
+        const decoded = (0, base64_arraybuffer_1.decode)(data);
+        return mapBinary(decoded, binaryType);
+    }
+    else {
+        return { base64: true, data }; // fallback for old browsers
+    }
+};
+const mapBinary = (data, binaryType) => {
+    switch (binaryType) {
+        case "blob":
+            return data instanceof ArrayBuffer ? new Blob([data]) : data;
+        case "arraybuffer":
+        default:
+            return data; // assuming the data is already an ArrayBuffer
+    }
+};
+exports.default = decodePacket;
@@ -0,0 +1,49 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+const commons_js_1 = require("./commons.js");
+const decodePacket = (encodedPacket, binaryType) => {
+    if (typeof encodedPacket !== "string") {
+        return {
+            type: "message",
+            data: mapBinary(encodedPacket, binaryType)
+        };
+    }
+    const type = encodedPacket.charAt(0);
+    if (type === "b") {
+        const buffer = Buffer.from(encodedPacket.substring(1), "base64");
+        return {
+            type: "message",
+            data: mapBinary(buffer, binaryType)
+        };
+    }
+    if (!commons_js_1.PACKET_TYPES_REVERSE[type]) {
+        return commons_js_1.ERROR_PACKET;
+    }
+    return encodedPacket.length > 1
+        ? {
+            type: commons_js_1.PACKET_TYPES_REVERSE[type],
+            data: encodedPacket.substring(1)
+        }
+        : {
+            type: commons_js_1.PACKET_TYPES_REVERSE[type]
+        };
+};
+const mapBinary = (data, binaryType) => {
+    const isBuffer = Buffer.isBuffer(data);
+    switch (binaryType) {
+        case "arraybuffer":
+            return isBuffer ? toArrayBuffer(data) : data;
+        case "nodebuffer":
+        default:
+            return data; // assuming the data is already a Buffer
+    }
+};
+const toArrayBuffer = buffer => {
+    const arrayBuffer = new ArrayBuffer(buffer.length);
+    const view = new Uint8Array(arrayBuffer);
+    for (let i = 0; i < buffer.length; i++) {
+        view[i] = buffer[i];
+    }
+    return arrayBuffer;
+};
+exports.default = decodePacket;
@@ -0,0 +1,43 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+const commons_js_1 = require("./commons.js");
+const withNativeBlob = typeof Blob === "function" ||
+    (typeof Blob !== "undefined" &&
+        Object.prototype.toString.call(Blob) === "[object BlobConstructor]");
+const withNativeArrayBuffer = typeof ArrayBuffer === "function";
+// ArrayBuffer.isView method is not defined in IE10
+const isView = obj => {
+    return typeof ArrayBuffer.isView === "function"
+        ? ArrayBuffer.isView(obj)
+        : obj && obj.buffer instanceof ArrayBuffer;
+};
+const encodePacket = ({ type, data }, supportsBinary, callback) => {
+    if (withNativeBlob && data instanceof Blob) {
+        if (supportsBinary) {
+            return callback(data);
+        }
+        else {
+            return encodeBlobAsBase64(data, callback);
+        }
+    }
+    else if (withNativeArrayBuffer &&
+        (data instanceof ArrayBuffer || isView(data))) {
+        if (supportsBinary) {
+            return callback(data);
+        }
+        else {
+            return encodeBlobAsBase64(new Blob([data]), callback);
+        }
+    }
+    // plain string
+    return callback(commons_js_1.PACKET_TYPES[type] + (data || ""));
+};
+const encodeBlobAsBase64 = (data, callback) => {
+    const fileReader = new FileReader();
+    fileReader.onload = function () {
+        const content = fileReader.result.split(",")[1];
+        callback("b" + content);
+    };
+    return fileReader.readAsDataURL(data);
+};
+exports.default = encodePacket;
@@ -0,0 +1,27 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+const commons_js_1 = require("./commons.js");
+const encodePacket = ({ type, data }, supportsBinary, callback) => {
+    if (data instanceof ArrayBuffer || ArrayBuffer.isView(data)) {
+        const buffer = toBuffer(data);
+        return callback(encodeBuffer(buffer, supportsBinary));
+    }
+    // plain string
+    return callback(commons_js_1.PACKET_TYPES[type] + (data || ""));
+};
+const toBuffer = data => {
+    if (Buffer.isBuffer(data)) {
+        return data;
+    }
+    else if (data instanceof ArrayBuffer) {
+        return Buffer.from(data);
+    }
+    else {
+        return Buffer.from(data.buffer, data.byteOffset, data.byteLength);
+    }
+};
+// only 'message' packets can contain binary, so the type prefix is not needed
+const encodeBuffer = (data, supportsBinary) => {
+    return supportsBinary ? data : "b" + data.toString("base64");
+};
+exports.default = encodePacket;
@@ -0,0 +1,38 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.decodePayload = exports.decodePacket = exports.encodePayload = exports.encodePacket = exports.protocol = void 0;
+const encodePacket_js_1 = require("./encodePacket.js");
+exports.encodePacket = encodePacket_js_1.default;
+const decodePacket_js_1 = require("./decodePacket.js");
+exports.decodePacket = decodePacket_js_1.default;
+const SEPARATOR = String.fromCharCode(30); // see https://en.wikipedia.org/wiki/Delimiter#ASCII_delimited_text
+const encodePayload = (packets, callback) => {
+    // some packets may be added to the array while encoding, so the initial length must be saved
+    const length = packets.length;
+    const encodedPackets = new Array(length);
+    let count = 0;
+    packets.forEach((packet, i) => {
+        // force base64 encoding for binary packets
+        (0, encodePacket_js_1.default)(packet, false, encodedPacket => {
+            encodedPackets[i] = encodedPacket;
+            if (++count === length) {
+                callback(encodedPackets.join(SEPARATOR));
+            }
+        });
+    });
+};
+exports.encodePayload = encodePayload;
+const decodePayload = (encodedPayload, binaryType) => {
+    const encodedPackets = encodedPayload.split(SEPARATOR);
+    const packets = [];
+    for (let i = 0; i < encodedPackets.length; i++) {
+        const decodedPacket = (0, decodePacket_js_1.default)(encodedPackets[i], binaryType);
+        packets.push(decodedPacket);
+        if (decodedPacket.type === "error") {
+            break;
+        }
+    }
+    return packets;
+};
+exports.decodePayload = decodePayload;
+exports.protocol = 4;
@@ -0,0 +1,7 @@
+{
+  "type": "commonjs",
+  "browser": {
+    "./encodePacket.js": "./encodePacket.browser.js",
+    "./decodePacket.js": "./decodePacket.browser.js"
+  }
+}