Initial commit

ui/commands/string.js

@@ -0,0 +1,72 @@
+// Sshwifty - A Web SSH client
+//
+// Copyright (C) 2019 Rui NI <nirui@gmx.com>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as
+// published by the Free Software Foundation, either version 3 of the
+// License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+import * as reader from "../stream/reader.js";
+import * as integer from "./integer.js";
+
+export class String {
+  /**
+   * Read String from given reader
+   *
+   * @param {reader.Reader} rd Source reader
+   *
+   * @returns {String} readed string
+   *
+   */
+  static async read(rd) {
+    let l = new integer.Integer(0);
+
+    await l.unmarshal(rd);
+
+    return new String(await reader.readN(rd, l.value()));
+  }
+
+  /**
+   * constructor
+   *
+   * @param {Uint8Array} str String data
+   */
+  constructor(str) {
+    this.str = str;
+  }
+
+  /**
+   * Return the string
+   *
+   * @returns {Uint8Array} String data
+   *
+   */
+  data() {
+    return this.str;
+  }
+
+  /**
+   * Return serialized String as array
+   *
+   * @returns {Uint8Array} serialized String
+   *
+   */
+  buffer() {
+    let lBytes = new integer.Integer(this.str.length).marshal(),
+      buf = new Uint8Array(lBytes.length + this.str.length);
+
+    buf.set(lBytes, 0);
+    buf.set(this.str, lBytes.length);
+
+    return buf;
+  }
+}