mirror: registry.coder.com/coder/kasmvnc/coder v1.3.0
This commit is contained in:
Coder Module Mirror
25
README.md
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25
README.md
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@@ -0,0 +1,25 @@
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---
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display_name: KasmVNC
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description: A modern open source VNC server
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icon: ../../../../.icons/kasmvnc.svg
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verified: true
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tags: [vnc, desktop, kasmvnc]
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---
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# KasmVNC
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Automatically install [KasmVNC](https://kasmweb.com/kasmvnc) in a workspace, and create an app to access it via the dashboard.
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```tf
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module "kasmvnc" {
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count = data.coder_workspace.me.start_count
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source = "registry.coder.com/coder/kasmvnc/coder"
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version = "1.3.0"
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agent_id = coder_agent.example.id
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desktop_environment = "xfce"
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subdomain = true
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}
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```
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> [!IMPORTANT]
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> This module only works on workspaces with a pre-installed desktop environment. As an example base image you can use [`codercom/example-desktop`](https://hub.docker.com/r/codercom/example-desktop) image.
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37
main.test.ts
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37
main.test.ts
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import { describe, expect, it } from "bun:test";
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import {
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runTerraformApply,
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runTerraformInit,
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testRequiredVariables,
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} from "~test";
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const allowedDesktopEnvs = ["xfce", "kde", "gnome", "lxde", "lxqt"] as const;
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type AllowedDesktopEnv = (typeof allowedDesktopEnvs)[number];
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type TestVariables = Readonly<{
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agent_id: string;
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desktop_environment: AllowedDesktopEnv;
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port?: string;
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kasm_version?: string;
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}>;
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describe("Kasm VNC", async () => {
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await runTerraformInit(import.meta.dir);
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testRequiredVariables<TestVariables>(import.meta.dir, {
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agent_id: "foo",
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desktop_environment: "gnome",
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});
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it("Successfully installs for all expected Kasm desktop versions", async () => {
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for (const v of allowedDesktopEnvs) {
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const applyWithEnv = () => {
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runTerraformApply<TestVariables>(import.meta.dir, {
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agent_id: "foo",
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desktop_environment: v,
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});
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};
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expect(applyWithEnv).not.toThrow();
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}
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});
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});
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96
main.tf
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96
main.tf
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@@ -0,0 +1,96 @@
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terraform {
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required_version = ">= 1.0"
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required_providers {
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coder = {
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source = "coder/coder"
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version = ">= 2.5"
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}
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}
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}
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variable "agent_id" {
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type = string
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description = "The ID of a Coder agent."
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}
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variable "port" {
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type = number
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description = "The port to run KasmVNC on."
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default = 6800
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}
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variable "kasm_version" {
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type = string
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description = "Version of KasmVNC to install."
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default = "1.4.0"
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}
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variable "desktop_environment" {
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type = string
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description = "Specifies the desktop environment of the workspace. This should be pre-installed on the workspace."
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validation {
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condition = contains(["cinnamon", "mate", "lxde", "lxqt", "kde", "gnome", "xfce", "manual"], var.desktop_environment)
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error_message = "Invalid desktop environment. Please specify a valid desktop environment."
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}
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}
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variable "order" {
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type = number
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description = "The order determines the position of app in the UI presentation. The lowest order is shown first and apps with equal order are sorted by name (ascending order)."
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default = null
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}
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variable "group" {
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type = string
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description = "The name of a group that this app belongs to."
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default = null
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}
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variable "subdomain" {
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type = bool
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default = true
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description = "Is subdomain sharing enabled in your cluster?"
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}
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variable "share" {
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type = string
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default = "owner"
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validation {
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condition = var.share == "owner" || var.share == "authenticated" || var.share == "public"
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error_message = "Incorrect value. Please set either 'owner', 'authenticated', or 'public'."
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}
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}
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resource "coder_script" "kasm_vnc" {
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agent_id = var.agent_id
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display_name = "KasmVNC"
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icon = "/icon/kasmvnc.svg"
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run_on_start = true
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script = templatefile("${path.module}/run.sh", {
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PORT = var.port,
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DESKTOP_ENVIRONMENT = var.desktop_environment,
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KASM_VERSION = var.kasm_version
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SUBDOMAIN = tostring(var.subdomain)
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PATH_VNC_HTML = var.subdomain ? "" : file("${path.module}/path_vnc.html")
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})
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}
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resource "coder_app" "kasm_vnc" {
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agent_id = var.agent_id
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slug = "kasm-vnc"
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display_name = "KasmVNC"
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url = "http://localhost:${var.port}"
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icon = "/icon/kasmvnc.svg"
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subdomain = var.subdomain
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share = var.share
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order = var.order
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group = var.group
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healthcheck {
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url = "http://localhost:${var.port}/app"
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interval = 5
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threshold = 5
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}
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}
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111
path_vnc.html
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111
path_vnc.html
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<!doctype html>
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<html>
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<head>
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<title>Path-Sharing Bounce Page</title>
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<style type="text/css">
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:root {
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color-scheme: light dark;
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--dark: #121212;
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--header-bg: rgba(127, 127, 127, 0.2);
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--light: white;
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--rule-color: light-dark(rgba(0, 0, 0, 0.8), rgba(255, 255, 255, 0.8));
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background-color: light-dark(var(--light), var(--dark));
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color: light-dark(var(--dark), var(--light));
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}
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body,
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h1,
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p {
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box-sizing: border-box;
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margin: 0;
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padding: 0;
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}
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body {
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font-family:
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Inter,
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system-ui,
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-apple-system,
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BlinkMacSystemFont,
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"Segoe UI",
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Roboto,
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Oxygen,
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Ubuntu,
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Cantarell,
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"Open Sans",
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"Helvetica Neue",
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sans-serif;
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}
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h1 {
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width: 100%;
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padding: 1rem;
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letter-spacing: -1.5pt;
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padding-bottom: 10px;
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border-bottom: 1px solid var(--rule-color);
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background-color: var(--header-bg);
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}
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p {
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padding: 1rem;
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letter-spacing: -0.5pt;
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}
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a.indent {
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display: inline-block;
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padding-top: 0.5rem;
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padding-left: 2rem;
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font-size: 0.8rem;
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}
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</style>
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<meta charset="UTF-8" />
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</head>
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<body>
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<h1>Path-Sharing Bounce Page</h1>
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<p>
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This application is being served via path sharing. If you are not
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redirected,
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<span id="help"
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>check the Javascript console in your browser's developer tools for more
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information.</span
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>
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</p>
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</body>
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<script language="javascript">
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// This page exists to satisfy the querystring driven client API
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// specified here - https://raw.githubusercontent.com/kasmtech/noVNC/bce2d6a7048025c6e6c05df9d98b206c23f6dbab/docs/EMBEDDING.md
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// tl;dr:
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// * `host` - The WebSocket host to connect to.
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// This is just the hostname component of the original URL
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// * `port` - The WebSocket port to connect to.
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// It doesn't look like we need to set this unless it's different
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// than the incoming http request.
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// * `encrypt` - If TLS should be used for the WebSocket connection.
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// we base this on whether or not the protocol is `https`, seems
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// reasonable for now.
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// * `path` - The WebSocket path to use.
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// This apparently doesn't tolerate a leading `/` so we use a
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// function to tidy that up.
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function trimFirstCharIf(str, char) {
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return str.charAt(0) === char ? str.slice(1) : str;
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}
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function trimLastCharIf(str, char) {
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return str.endsWith("/") ? str.slice(0, str.length - 1) : str;
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}
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const newloc = new URL(window.location);
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const h = document.getElementById("help");
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// Building the websockify path must happen before we append the filename to newloc.pathname
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newloc.searchParams.append(
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"path",
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trimLastCharIf(trimFirstCharIf(newloc.pathname, "/"), "/") +
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"/websockify",
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);
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newloc.searchParams.append(
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"encrypted",
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newloc.protocol === "https:" ? true : false,
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);
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newloc.pathname += "vnc.html";
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console.log(newloc);
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h.innerHTML = `click <a id="link" href="${newloc.toString()}">here</a> to go to the application.
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<br/><br/>The rewritten URL is:<br/><a id="link" class="indent" href="${newloc.toString()}">${newloc.toString()}</a>`;
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window.location = newloc.href;
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|
</script>
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</html>
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310
run.sh
Normal file
310
run.sh
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@@ -0,0 +1,310 @@
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#!/usr/bin/env bash
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set -eo pipefail
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||||||
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error() {
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|
printf "💀 ERROR: %s\n" "$@"
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|
exit 1
|
||||||
|
}
|
||||||
|
|
||||||
|
# Function to check if KasmVNC is already installed
|
||||||
|
check_installed() {
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||||||
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if command -v kasmvncserver &> /dev/null; then
|
||||||
|
echo "KasmVNC is already installed."
|
||||||
|
return 0 # Don't exit, just indicate it's installed
|
||||||
|
else
|
||||||
|
return 1 # Indicates not installed
|
||||||
|
fi
|
||||||
|
}
|
||||||
|
|
||||||
|
# Function to download a file using wget, curl, or busybox as a fallback
|
||||||
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download_file() {
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||||||
|
local url="$1"
|
||||||
|
local output="$2"
|
||||||
|
local download_tool
|
||||||
|
|
||||||
|
if command -v curl &> /dev/null; then
|
||||||
|
# shellcheck disable=SC2034
|
||||||
|
download_tool=(curl -fsSL)
|
||||||
|
elif command -v wget &> /dev/null; then
|
||||||
|
# shellcheck disable=SC2034
|
||||||
|
download_tool=(wget -q -O-)
|
||||||
|
elif command -v busybox &> /dev/null; then
|
||||||
|
# shellcheck disable=SC2034
|
||||||
|
download_tool=(busybox wget -O-)
|
||||||
|
else
|
||||||
|
echo "ERROR: No download tool available (curl, wget, or busybox required)"
|
||||||
|
exit 1
|
||||||
|
fi
|
||||||
|
|
||||||
|
# shellcheck disable=SC2288
|
||||||
|
"$${download_tool[@]}" "$url" > "$output" || {
|
||||||
|
echo "ERROR: Failed to download $url"
|
||||||
|
exit 1
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
# Function to install kasmvncserver for debian-based distros
|
||||||
|
install_deb() {
|
||||||
|
local url=$1
|
||||||
|
local kasmdeb="/tmp/kasmvncserver.deb"
|
||||||
|
|
||||||
|
download_file "$url" "$kasmdeb"
|
||||||
|
|
||||||
|
CACHE_DIR="/var/lib/apt/lists/partial"
|
||||||
|
# Check if the directory exists and was modified in the last 60 minutes
|
||||||
|
if [[ ! -d "$CACHE_DIR" ]] || ! find "$CACHE_DIR" -mmin -60 -print -quit &> /dev/null; then
|
||||||
|
echo "Stale package cache, updating..."
|
||||||
|
# Update package cache with a 300-second timeout for dpkg lock
|
||||||
|
sudo apt-get -o DPkg::Lock::Timeout=300 -qq update
|
||||||
|
fi
|
||||||
|
|
||||||
|
echo "Installing required Perl DateTime module..."
|
||||||
|
DEBIAN_FRONTEND=noninteractive sudo apt-get -o DPkg::Lock::Timeout=300 install --yes -qq --no-install-recommends --no-install-suggests libdatetime-perl
|
||||||
|
|
||||||
|
DEBIAN_FRONTEND=noninteractive sudo apt-get -o DPkg::Lock::Timeout=300 install --yes -qq --no-install-recommends --no-install-suggests "$kasmdeb"
|
||||||
|
rm "$kasmdeb"
|
||||||
|
}
|
||||||
|
|
||||||
|
# Function to install kasmvncserver for rpm-based distros
|
||||||
|
install_rpm() {
|
||||||
|
local url=$1
|
||||||
|
local kasmrpm="/tmp/kasmvncserver.rpm"
|
||||||
|
local package_manager
|
||||||
|
|
||||||
|
if command -v dnf &> /dev/null; then
|
||||||
|
# shellcheck disable=SC2034
|
||||||
|
package_manager=(dnf localinstall -y)
|
||||||
|
elif command -v zypper &> /dev/null; then
|
||||||
|
# shellcheck disable=SC2034
|
||||||
|
package_manager=(zypper install -y)
|
||||||
|
elif command -v yum &> /dev/null; then
|
||||||
|
# shellcheck disable=SC2034
|
||||||
|
package_manager=(yum localinstall -y)
|
||||||
|
elif command -v rpm &> /dev/null; then
|
||||||
|
# Do we need to manually handle missing dependencies?
|
||||||
|
# shellcheck disable=SC2034
|
||||||
|
package_manager=(rpm -i)
|
||||||
|
else
|
||||||
|
echo "ERROR: No supported package manager available (dnf, zypper, yum, or rpm required)"
|
||||||
|
exit 1
|
||||||
|
fi
|
||||||
|
|
||||||
|
download_file "$url" "$kasmrpm"
|
||||||
|
|
||||||
|
# shellcheck disable=SC2288
|
||||||
|
sudo "$${package_manager[@]}" "$kasmrpm" || {
|
||||||
|
echo "ERROR: Failed to install $kasmrpm"
|
||||||
|
exit 1
|
||||||
|
}
|
||||||
|
|
||||||
|
rm "$kasmrpm"
|
||||||
|
}
|
||||||
|
|
||||||
|
# Function to install kasmvncserver for Alpine Linux
|
||||||
|
install_alpine() {
|
||||||
|
local url=$1
|
||||||
|
local kasmtgz="/tmp/kasmvncserver.tgz"
|
||||||
|
|
||||||
|
download_file "$url" "$kasmtgz"
|
||||||
|
|
||||||
|
tar -xzf "$kasmtgz" -C /usr/local/bin/
|
||||||
|
rm "$kasmtgz"
|
||||||
|
}
|
||||||
|
|
||||||
|
# Detect system information
|
||||||
|
if [[ ! -f /etc/os-release ]]; then
|
||||||
|
echo "ERROR: Cannot detect OS: /etc/os-release not found"
|
||||||
|
exit 1
|
||||||
|
fi
|
||||||
|
|
||||||
|
# shellcheck disable=SC1091
|
||||||
|
source /etc/os-release
|
||||||
|
|
||||||
|
set -u
|
||||||
|
|
||||||
|
distro="$ID"
|
||||||
|
distro_version="$VERSION_ID"
|
||||||
|
codename="$VERSION_CODENAME"
|
||||||
|
arch="$(uname -m)"
|
||||||
|
if [[ "$ID" == "ol" ]]; then
|
||||||
|
distro="oracle"
|
||||||
|
distro_version="$${distro_version%%.*}"
|
||||||
|
elif [[ "$ID" == "fedora" ]]; then
|
||||||
|
distro_version="$(grep -oP '\(\K[\w ]+' /etc/fedora-release | tr '[:upper:]' '[:lower:]' | tr -d ' ')"
|
||||||
|
fi
|
||||||
|
|
||||||
|
echo "Detected Distribution: $distro"
|
||||||
|
echo "Detected Version: $distro_version"
|
||||||
|
echo "Detected Codename: $codename"
|
||||||
|
echo "Detected Architecture: $arch"
|
||||||
|
|
||||||
|
# Map arch to package arch
|
||||||
|
case "$arch" in
|
||||||
|
x86_64)
|
||||||
|
if [[ "$distro" =~ ^(ubuntu|debian|kali)$ ]]; then
|
||||||
|
arch="amd64"
|
||||||
|
fi
|
||||||
|
;;
|
||||||
|
aarch64)
|
||||||
|
if [[ "$distro" =~ ^(ubuntu|debian|kali)$ ]]; then
|
||||||
|
arch="arm64"
|
||||||
|
fi
|
||||||
|
;;
|
||||||
|
arm64)
|
||||||
|
: # This is effectively a noop
|
||||||
|
;;
|
||||||
|
*)
|
||||||
|
echo "ERROR: Unsupported architecture: $arch"
|
||||||
|
exit 1
|
||||||
|
;;
|
||||||
|
esac
|
||||||
|
|
||||||
|
# Check if KasmVNC is installed, and install if not
|
||||||
|
if ! check_installed; then
|
||||||
|
# Check for NOPASSWD sudo (required)
|
||||||
|
if ! command -v sudo &> /dev/null || ! sudo -n true 2> /dev/null; then
|
||||||
|
echo "ERROR: sudo NOPASSWD access required!"
|
||||||
|
exit 1
|
||||||
|
fi
|
||||||
|
|
||||||
|
base_url="https://github.com/kasmtech/KasmVNC/releases/download/v${KASM_VERSION}"
|
||||||
|
|
||||||
|
echo "Installing KASM version: ${KASM_VERSION}"
|
||||||
|
case $distro in
|
||||||
|
ubuntu | debian | kali)
|
||||||
|
bin_name="kasmvncserver_$${codename}_${KASM_VERSION}_$${arch}.deb"
|
||||||
|
install_deb "$base_url/$bin_name"
|
||||||
|
;;
|
||||||
|
oracle | fedora | opensuse)
|
||||||
|
bin_name="kasmvncserver_$${distro}_$${distro_version}_${KASM_VERSION}_$${arch}.rpm"
|
||||||
|
install_rpm "$base_url/$bin_name"
|
||||||
|
;;
|
||||||
|
alpine)
|
||||||
|
bin_name="kasmvnc.alpine_$${distro_version//./}_$${arch}.tgz"
|
||||||
|
install_alpine "$base_url/$bin_name"
|
||||||
|
;;
|
||||||
|
*)
|
||||||
|
echo "Unsupported distribution: $distro"
|
||||||
|
exit 1
|
||||||
|
;;
|
||||||
|
esac
|
||||||
|
else
|
||||||
|
echo "KasmVNC already installed. Skipping installation."
|
||||||
|
fi
|
||||||
|
|
||||||
|
if command -v sudo &> /dev/null && sudo -n true 2> /dev/null; then
|
||||||
|
kasm_config_file="/etc/kasmvnc/kasmvnc.yaml"
|
||||||
|
SUDO=sudo
|
||||||
|
else
|
||||||
|
kasm_config_file="$HOME/.vnc/kasmvnc.yaml"
|
||||||
|
SUDO=""
|
||||||
|
|
||||||
|
echo "WARNING: Sudo access not available, using user config dir!"
|
||||||
|
|
||||||
|
if [[ -f "$kasm_config_file" ]]; then
|
||||||
|
echo "WARNING: Custom user KasmVNC config exists, not overwriting!"
|
||||||
|
echo "WARNING: Ensure that you manually configure the appropriate settings."
|
||||||
|
kasm_config_file="/dev/stderr"
|
||||||
|
else
|
||||||
|
echo "WARNING: This may prevent custom user KasmVNC settings from applying!"
|
||||||
|
mkdir -p "$HOME/.vnc"
|
||||||
|
fi
|
||||||
|
fi
|
||||||
|
|
||||||
|
echo "Writing KasmVNC config to $kasm_config_file"
|
||||||
|
$SUDO tee "$kasm_config_file" > /dev/null << EOF
|
||||||
|
network:
|
||||||
|
protocol: http
|
||||||
|
interface: 127.0.0.1
|
||||||
|
websocket_port: ${PORT}
|
||||||
|
ssl:
|
||||||
|
require_ssl: false
|
||||||
|
pem_certificate:
|
||||||
|
pem_key:
|
||||||
|
udp:
|
||||||
|
public_ip: 127.0.0.1
|
||||||
|
EOF
|
||||||
|
|
||||||
|
# This password is not used since we start the server without auth.
|
||||||
|
# The server is protected via the Coder session token / tunnel
|
||||||
|
# and does not listen publicly
|
||||||
|
echo -e "password\npassword\n" | kasmvncpasswd -wo -u "$USER"
|
||||||
|
|
||||||
|
get_http_dir() {
|
||||||
|
# determine the served file path
|
||||||
|
# Start with the default
|
||||||
|
httpd_directory="/usr/share/kasmvnc/www"
|
||||||
|
|
||||||
|
# Check the system configuration path
|
||||||
|
if [[ -e /etc/kasmvnc/kasmvnc.yaml ]]; then
|
||||||
|
d=$(grep -E '^\s*httpd_directory:.*$' "/etc/kasmvnc/kasmvnc.yaml" | awk '{print $$2}')
|
||||||
|
if [[ -n "$d" && -d "$d" ]]; then
|
||||||
|
httpd_directory=$d
|
||||||
|
fi
|
||||||
|
fi
|
||||||
|
|
||||||
|
# Check the home directory for overriding values
|
||||||
|
if [[ -e "$HOME/.vnc/kasmvnc.yaml" ]]; then
|
||||||
|
d=$(grep -E '^\s*httpd_directory:.*$' "$HOME/.vnc/kasmvnc.yaml" | awk '{print $$2}')
|
||||||
|
if [[ -n "$d" && -d "$d" ]]; then
|
||||||
|
httpd_directory=$d
|
||||||
|
fi
|
||||||
|
fi
|
||||||
|
echo $httpd_directory
|
||||||
|
}
|
||||||
|
|
||||||
|
fix_server_index_file() {
|
||||||
|
local fname=$${FUNCNAME[0]} # gets current function name
|
||||||
|
if [[ $# -ne 1 ]]; then
|
||||||
|
error "$fname requires exactly 1 parameter:\n\tpath to KasmVNC httpd_directory"
|
||||||
|
fi
|
||||||
|
local httpdir="$1"
|
||||||
|
if [[ ! -d "$httpdir" ]]; then
|
||||||
|
error "$fname: $httpdir is not a directory"
|
||||||
|
fi
|
||||||
|
pushd "$httpdir" > /dev/null
|
||||||
|
|
||||||
|
cat << 'EOH' > /tmp/path_vnc.html
|
||||||
|
${PATH_VNC_HTML}
|
||||||
|
EOH
|
||||||
|
$SUDO mv /tmp/path_vnc.html .
|
||||||
|
# check for the switcheroo
|
||||||
|
if [[ -f "index.html" && -L "vnc.html" ]]; then
|
||||||
|
$SUDO mv $httpdir/index.html $httpdir/vnc.html
|
||||||
|
fi
|
||||||
|
$SUDO ln -s -f path_vnc.html index.html
|
||||||
|
popd > /dev/null
|
||||||
|
}
|
||||||
|
|
||||||
|
patch_kasm_http_files() {
|
||||||
|
homedir=$(get_http_dir)
|
||||||
|
fix_server_index_file "$homedir"
|
||||||
|
}
|
||||||
|
|
||||||
|
if [[ "${SUBDOMAIN}" == "false" ]]; then
|
||||||
|
echo "🩹 Patching up webserver files to support path-sharing..."
|
||||||
|
patch_kasm_http_files
|
||||||
|
fi
|
||||||
|
|
||||||
|
VNC_LOG="/tmp/kasmvncserver.log"
|
||||||
|
# Start the server
|
||||||
|
printf "🚀 Starting KasmVNC server...\n"
|
||||||
|
|
||||||
|
set +e
|
||||||
|
kasmvncserver -select-de "${DESKTOP_ENVIRONMENT}" -disableBasicAuth > "$VNC_LOG" 2>&1
|
||||||
|
RETVAL=$?
|
||||||
|
set -e
|
||||||
|
|
||||||
|
if [[ $RETVAL -ne 0 ]]; then
|
||||||
|
echo "ERROR: Failed to start KasmVNC server. Return code: $RETVAL"
|
||||||
|
if [[ -f "$VNC_LOG" ]]; then
|
||||||
|
echo "Full logs:"
|
||||||
|
cat "$VNC_LOG"
|
||||||
|
else
|
||||||
|
echo "ERROR: Log file not found: $VNC_LOG"
|
||||||
|
fi
|
||||||
|
exit 1
|
||||||
|
fi
|
||||||
|
|
||||||
|
printf "🚀 KasmVNC server started successfully!\n"
|
||||||
Reference in New Issue
Block a user