Initial commit of ld-sysinfo-server backend

node_modules/encoding-sniffer/dist/commonjs/index.js

@@ -0,0 +1,93 @@
+"use strict";
+var __extends = (this && this.__extends) || (function () {
+    var extendStatics = function (d, b) {
+        extendStatics = Object.setPrototypeOf ||
+            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
+        return extendStatics(d, b);
+    };
+    return function (d, b) {
+        if (typeof b !== "function" && b !== null)
+            throw new TypeError("Class extends value " + String(b) + " is not a constructor or null");
+        extendStatics(d, b);
+        function __() { this.constructor = d; }
+        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+    };
+})();
+var __importDefault = (this && this.__importDefault) || function (mod) {
+    return (mod && mod.__esModule) ? mod : { "default": mod };
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.getEncoding = exports.DecodeStream = exports.decodeBuffer = void 0;
+var node_stream_1 = require("node:stream");
+var iconv_lite_1 = __importDefault(require("iconv-lite"));
+var sniffer_js_1 = require("./sniffer.js");
+/**
+ * Sniff the encoding of a buffer, then decode it.
+ *
+ * @param buffer Buffer to be decoded
+ * @param options Options for the sniffer
+ * @returns The decoded buffer
+ */
+function decodeBuffer(buffer, options) {
+    if (options === void 0) { options = {}; }
+    return iconv_lite_1.default.decode(buffer, (0, sniffer_js_1.getEncoding)(buffer, options));
+}
+exports.decodeBuffer = decodeBuffer;
+/**
+ * Decodes a stream of buffers into a stream of strings.
+ *
+ * Reads the first 1024 bytes and passes them to the sniffer. Once an encoding
+ * has been determined, it passes all data to iconv-lite's stream and outputs
+ * the results.
+ */
+var DecodeStream = /** @class */ (function (_super) {
+    __extends(DecodeStream, _super);
+    function DecodeStream(options) {
+        var _a;
+        var _this = _super.call(this, { decodeStrings: false, encoding: "utf-8" }) || this;
+        _this.buffers = [];
+        /** The iconv decode stream. If it is set, we have read more than `options.maxBytes` bytes. */
+        _this.iconv = null;
+        _this.readBytes = 0;
+        _this.sniffer = new sniffer_js_1.Sniffer(options);
+        _this.maxBytes = (_a = options === null || options === void 0 ? void 0 : options.maxBytes) !== null && _a !== void 0 ? _a : 1024;
+        return _this;
+    }
+    DecodeStream.prototype._transform = function (chunk, _encoding, callback) {
+        if (this.readBytes < this.maxBytes) {
+            this.sniffer.write(chunk);
+            this.readBytes += chunk.length;
+            if (this.readBytes < this.maxBytes) {
+                this.buffers.push(chunk);
+                callback();
+                return;
+            }
+        }
+        this.getIconvStream().write(chunk, callback);
+    };
+    DecodeStream.prototype.getIconvStream = function () {
+        var _this = this;
+        if (this.iconv) {
+            return this.iconv;
+        }
+        var stream = iconv_lite_1.default.decodeStream(this.sniffer.encoding);
+        stream.on("data", function (chunk) { return _this.push(chunk, "utf-8"); });
+        stream.on("end", function () { return _this.push(null); });
+        this.iconv = stream;
+        for (var _i = 0, _a = this.buffers; _i < _a.length; _i++) {
+            var buffer = _a[_i];
+            stream.write(buffer);
+        }
+        this.buffers.length = 0;
+        return stream;
+    };
+    DecodeStream.prototype._flush = function (callback) {
+        this.getIconvStream().end(callback);
+    };
+    return DecodeStream;
+}(node_stream_1.Transform));
+exports.DecodeStream = DecodeStream;
+var sniffer_js_2 = require("./sniffer.js");
+Object.defineProperty(exports, "getEncoding", { enumerable: true, get: function () { return sniffer_js_2.getEncoding; } });
+//# sourceMappingURL=index.js.map