From b07f95f9566b4c1fe5e1b417d3cbf32bf1927b75 Mon Sep 17 00:00:00 2001
From: Paulus Schoutsen <paulus@home-assistant.io>
Date: Sat, 6 Apr 2019 00:28:08 -0700
Subject: [PATCH] Add hassio ingress support (#3062)

* Add hassio ingress support

* Remove logging

* Better integrate

* Add badge

* FIx type
---
 hassio/src/addon-view/hassio-addon-info.js    |  39 +++++-
 hassio/src/entrypoint.js                      |  14 ++-
 hassio/src/hassio-main.js                     |  18 ++-
 .../src/ingress-view/hassio-ingress-view.ts   | 113 ++++++++++++++++++
 .../ha-paper-icon-button-arrow-prev.ts        |   8 +-
 src/data/hassio.ts                            |  86 +++++++++++++
 src/layouts/hass-subpage.ts                   |  22 +++-
 7 files changed, 291 insertions(+), 9 deletions(-)
 create mode 100644 hassio/src/ingress-view/hassio-ingress-view.ts
 create mode 100644 src/data/hassio.ts

diff --git a/hassio/src/addon-view/hassio-addon-info.js b/hassio/src/addon-view/hassio-addon-info.js
index 792407116b..3a987088af 100644
--- a/hassio/src/addon-view/hassio-addon-info.js
+++ b/hassio/src/addon-view/hassio-addon-info.js
@@ -10,6 +10,7 @@ import "../../../src/components/ha-markdown";
 import "../../../src/components/buttons/ha-call-api-button";
 import "../../../src/resources/ha-style";
 import EventsMixin from "../../../src/mixins/events-mixin";
+import { navigate } from "../../../src/common/navigate";
 
 import "../components/hassio-card-content";
 
@@ -59,6 +60,11 @@ const PERMIS_DESC = {
     description:
       "An addon can authenticate users against Home Assistant, allowing add-ons to give users the possibility to log into applications running inside add-ons, using their Home Assistant username/password. This badge indicates if the add-on author requests this capability.",
   },
+  ingress: {
+    title: "Ingress",
+    description:
+      "This add-on is using Ingress to embed its interface securely into Home Assistant.",
+  },
 };
 
 class HassioAddonInfo extends EventsMixin(PolymerElement) {
@@ -310,6 +316,15 @@ class HassioAddonInfo extends EventsMixin(PolymerElement) {
                   description=""
                 ></ha-label-badge>
               </template>
+              <template is="dom-if" if="[[addon.ingress]]">
+                <ha-label-badge
+                  on-click="showMoreInfo"
+                  id="ingress"
+                  icon="hassio:cursor-default-click-outline"
+                  label="ingress"
+                  description=""
+                ></ha-label-badge>
+              </template>
           </div>
           <template is="dom-if" if="[[addon.version]]">
             <div class="state">
@@ -371,7 +386,7 @@ class HassioAddonInfo extends EventsMixin(PolymerElement) {
             </template>
             <template
               is="dom-if"
-              if="[[computeShowWebUI(addon.webui, isRunning)]]"
+              if="[[computeShowWebUI(addon.ingress, addon.webui, isRunning)]]"
             >
               <a
                 href="[[pathWebui(addon.webui)]]"
@@ -381,6 +396,16 @@ class HassioAddonInfo extends EventsMixin(PolymerElement) {
                 ><mwc-button>Open web UI</mwc-button></a
               >
             </template>
+            <template
+              is="dom-if"
+              if="[[computeShowIngressUI(addon.ingress, isRunning)]]"
+            >
+              <mwc-button
+                tabindex="-1"
+                class="right"
+                on-click="openIngress"
+              >Open web UI</mwc-button>
+            </template>
           </template>
           <template is="dom-if" if="[[!addon.version]]">
             <template is="dom-if" if="[[!addon.available]]">
@@ -448,8 +473,16 @@ class HassioAddonInfo extends EventsMixin(PolymerElement) {
     return webui && webui.replace("[HOST]", document.location.hostname);
   }
 
-  computeShowWebUI(webui, isRunning) {
-    return webui && isRunning;
+  computeShowWebUI(ingress, webui, isRunning) {
+    return !ingress && webui && isRunning;
+  }
+
+  openIngress() {
+    navigate(this, `/hassio/ingress/${this.addon.slug}`);
+  }
+
+  computeShowIngressUI(ingress, isRunning) {
+    return ingress && isRunning;
   }
 
   computeStartOnBoot(state) {
diff --git a/hassio/src/entrypoint.js b/hassio/src/entrypoint.js
index 2e91bbd4bc..3567516f58 100644
--- a/hassio/src/entrypoint.js
+++ b/hassio/src/entrypoint.js
@@ -2,4 +2,16 @@ window.loadES5Adapter().then(() => {
   import(/* webpackChunkName: "hassio-icons" */ "./resources/hassio-icons.js");
   import(/* webpackChunkName: "hassio-main" */ "./hassio-main.js");
 });
-document.body.style.height = "100%";
+const styleEl = document.createElement("style");
+styleEl.innerHTML = `
+body {
+  font-family: Roboto, sans-serif;
+  -moz-osx-font-smoothing: grayscale;
+  -webkit-font-smoothing: antialiased;
+  font-weight: 400;
+  margin: 0;
+  padding: 0;
+  height: 100vh;
+}
+`;
+document.head.appendChild(styleEl);
diff --git a/hassio/src/hassio-main.js b/hassio/src/hassio-main.js
index df4d57b985..dbc78e2952 100644
--- a/hassio/src/hassio-main.js
+++ b/hassio/src/hassio-main.js
@@ -4,9 +4,11 @@ import { PolymerElement } from "@polymer/polymer/polymer-element";
 
 import "../../src/layouts/hass-loading-screen";
 import "./addon-view/hassio-addon-view";
+import "./ingress-view/hassio-ingress-view";
 import "./hassio-data";
 import "./hassio-pages-with-tabs";
 
+import "../../src/resources/ha-style";
 import applyThemesOnElement from "../../src/common/dom/apply_themes_on_element";
 import EventsMixin from "../../src/mixins/events-mixin";
 import NavigateMixin from "../../src/mixins/navigate-mixin";
@@ -33,7 +35,7 @@ class HassioMain extends EventsMixin(NavigateMixin(PolymerElement)) {
       </template>
 
       <template is="dom-if" if="[[loaded]]">
-        <template is="dom-if" if="[[!equalsAddon(routeData.page)]]">
+        <template is="dom-if" if="[[equalsDashboard(routeData.page)]]">
           <hassio-pages-with-tabs
             hass="[[hass]]"
             page="[[routeData.page]]"
@@ -48,6 +50,12 @@ class HassioMain extends EventsMixin(NavigateMixin(PolymerElement)) {
             route="[[route]]"
           ></hassio-addon-view>
         </template>
+        <template is="dom-if" if="[[equalsIngress(routeData.page)]]">
+          <hassio-ingress-view
+            hass="[[hass]]"
+            route="[[route]]"
+          ></hassio-ingress-view>
+        </template>
       </template>
     `;
   }
@@ -137,6 +145,14 @@ class HassioMain extends EventsMixin(NavigateMixin(PolymerElement)) {
   equalsAddon(page) {
     return page && page === "addon";
   }
+
+  equalsDashboard(page) {
+    return !page || !["addon", "ingress"].includes(page);
+  }
+
+  equalsIngress(page) {
+    return page && page === "ingress";
+  }
 }
 
 customElements.define("hassio-main", HassioMain);
diff --git a/hassio/src/ingress-view/hassio-ingress-view.ts b/hassio/src/ingress-view/hassio-ingress-view.ts
new file mode 100644
index 0000000000..0d93fb8b19
--- /dev/null
+++ b/hassio/src/ingress-view/hassio-ingress-view.ts
@@ -0,0 +1,113 @@
+import {
+  LitElement,
+  customElement,
+  property,
+  TemplateResult,
+  html,
+  PropertyValues,
+  CSSResult,
+  css,
+} from "lit-element";
+import { HomeAssistant, Route } from "../../../src/types";
+import {
+  createHassioSession,
+  HassioAddon,
+  fetchHassioAddonInfo,
+} from "../../../src/data/hassio";
+import "../../../src/layouts/hass-loading-screen";
+import "../../../src/layouts/hass-subpage";
+
+const extractAddon = (path: string) => {
+  path = path.substr("/ingress".length);
+  const subpathStart = path.indexOf("/", 1);
+  return subpathStart === -1
+    ? path.substr(1)
+    : path.substr(1, subpathStart - 1);
+};
+
+@customElement("hassio-ingress-view")
+class HassioIngressView extends LitElement {
+  @property() public hass!: HomeAssistant;
+  @property() public route!: Route & { slug: string };
+  @property() private _hasSession = false;
+  @property() private _addon?: HassioAddon;
+
+  protected render(): TemplateResult | void {
+    if (!this._hasSession || !this._addon) {
+      return html`
+        <hass-loading-screen></hass-loading-screen>
+      `;
+    }
+    return html`
+      <hass-subpage .header=${this._addon.name} hassio root>
+        <a .href=${this._addon.ingress_url} slot="toolbar-icon" target="_blank">
+          <paper-icon-button icon="hassio:open-in-new"></paper-icon-button>
+        </a>
+        <iframe src=${this._addon.ingress_url}></iframe>
+      </hass-subpage>
+    `;
+  }
+
+  protected updated(changedProps: PropertyValues) {
+    super.firstUpdated(changedProps);
+
+    if (!changedProps.has("route")) {
+      return;
+    }
+
+    const addon = extractAddon(this.route.path);
+
+    const oldRoute = changedProps.get("route") as this["route"] | undefined;
+    const oldAddon = oldRoute ? extractAddon(oldRoute.path) : undefined;
+
+    if (addon !== oldAddon) {
+      this._createSession();
+      this._fetchAddonInfo(addon);
+    }
+  }
+
+  private async _fetchAddonInfo(addonSlug: string) {
+    try {
+      const addon = await fetchHassioAddonInfo(this.hass, addonSlug);
+      if (addon.ingress) {
+        this._addon = addon;
+      } else {
+        alert("This add-on does not support ingress.");
+        history.back();
+      }
+    } catch (err) {
+      alert("Failed to fetch add-on info");
+      history.back();
+    }
+  }
+
+  private async _createSession() {
+    try {
+      await createHassioSession(this.hass);
+      this._hasSession = true;
+    } catch (err) {
+      alert("Failed to generate a session");
+      history.back();
+    }
+  }
+
+  static get styles(): CSSResult {
+    return css`
+      iframe {
+        display: block;
+        width: 100%;
+        height: 100%;
+        border: 0;
+      }
+      paper-icon-button {
+        color: var(--text-primary-color);
+      }
+    `;
+  }
+}
+
+declare global {
+  interface HTMLElementTagNameMap {
+    "hassio-ingress-view": HassioIngressView;
+  }
+}
diff --git a/src/components/ha-paper-icon-button-arrow-prev.ts b/src/components/ha-paper-icon-button-arrow-prev.ts
index acac478b8f..de512993f8 100644
--- a/src/components/ha-paper-icon-button-arrow-prev.ts
+++ b/src/components/ha-paper-icon-button-arrow-prev.ts
@@ -9,10 +9,16 @@ const paperIconButtonClass = customElements.get(
 ) as Constructor<PaperIconButtonElement>;
 
 export class HaPaperIconButtonArrowPrev extends paperIconButtonClass {
+  public hassio?: boolean;
+
   public connectedCallback() {
     this.icon =
       window.getComputedStyle(this).direction === "ltr"
-        ? "hass:arrow-left"
+        ? this.hassio
+          ? "hassio:arrow-left"
+          : "hass:arrow-left"
+        : this.hassio
+        ? "hassio:arrow-right"
         : "hass:arrow-right";
 
     // calling super after setting icon to have it consistently show the icon (otherwise not always shown)
diff --git a/src/data/hassio.ts b/src/data/hassio.ts
new file mode 100644
index 0000000000..25a83afb83
--- /dev/null
+++ b/src/data/hassio.ts
@@ -0,0 +1,86 @@
+import { HomeAssistant } from "../types";
+
+interface HassioResponse<T> {
+  data: T;
+  result: "ok";
+}
+
+interface CreateSessionResponse {
+  session: string;
+}
+
+export interface HassioAddon {
+  name: string;
+  slug: string;
+  description: string;
+  long_description: null | string;
+  auto_update: boolean;
+  url: null | string;
+  detached: boolean;
+  available: boolean;
+  arch: "armhf" | "aarch64" | "i386" | "amd64";
+  machine: any;
+  homeassistant: string;
+  repository: null | string;
+  version: null | string;
+  last_version: string;
+  state: "none" | "started" | "stopped";
+  boot: "auto" | "manual";
+  build: boolean;
+  options: object;
+  network: null | object;
+  host_network: boolean;
+  host_pid: boolean;
+  host_ipc: boolean;
+  host_dbus: boolean;
+  privileged: any;
+  apparmor: "disable" | "default" | "profile";
+  devices: string[];
+  auto_uart: boolean;
+  icon: boolean;
+  logo: boolean;
+  changelog: boolean;
+  hassio_api: boolean;
+  hassio_role: "default" | "homeassistant" | "manager" | "admin";
+  homeassistant_api: boolean;
+  auth_api: boolean;
+  full_access: boolean;
+  protected: boolean;
+  rating: "1-6";
+  stdin: boolean;
+  webui: null | string;
+  gpio: boolean;
+  kernel_modules: boolean;
+  devicetree: boolean;
+  docker_api: boolean;
+  audio: boolean;
+  audio_input: null | string;
+  audio_output: null | string;
+  services_role: string[];
+  discovery: string[];
+  ip_address: string;
+  ingress: boolean;
+  ingress_entry: null | string;
+  ingress_url: null | string;
+}
+
+const hassioApiResultExtractor = <T>(response: HassioResponse<T>) =>
+  response.data;
+
+export const createHassioSession = async (hass: HomeAssistant) => {
+  const response = await hass.callApi<HassioResponse<CreateSessionResponse>>(
+    "POST",
+    "hassio/ingress/session"
+  );
+  document.cookie = `ingress_session=${
+    response.data.session
+  };path=/api/hassio_ingress/`;
+};
+
+export const fetchHassioAddonInfo = async (
+  hass: HomeAssistant,
+  addon: string
+) =>
+  hass
+    .callApi<HassioResponse<HassioAddon>>("GET", `hassio/addons/${addon}/info`)
+    .then(hassioApiResultExtractor);
diff --git a/src/layouts/hass-subpage.ts b/src/layouts/hass-subpage.ts
index 8dae9e7125..950e9637a7 100644
--- a/src/layouts/hass-subpage.ts
+++ b/src/layouts/hass-subpage.ts
@@ -7,6 +7,7 @@ import {
   css,
   CSSResult,
 } from "lit-element";
+import "../components/ha-menu-button";
 import "../components/ha-paper-icon-button-arrow-prev";
 
 @customElement("hass-subpage")
@@ -14,12 +15,26 @@ class HassSubpage extends LitElement {
   @property()
   public header?: string;
 
+  @property({ type: Boolean })
+  public root = false;
+
+  @property({ type: Boolean })
+  public hassio = false;
+
   protected render(): TemplateResult | void {
     return html`
       <div class="toolbar">
-        <ha-paper-icon-button-arrow-prev
-          @click=${this._backTapped}
-        ></ha-paper-icon-button-arrow-prev>
+        ${this.root
+          ? html`
+              <ha-menu-button .hassio=${this.hassio}></ha-menu-button>
+            `
+          : html`
+              <ha-paper-icon-button-arrow-prev
+                .hassio=${this.hassio}
+                @click=${this._backTapped}
+              ></ha-paper-icon-button-arrow-prev>
+            `}
+
         <div main-title>${this.header}</div>
         <slot name="toolbar-icon"></slot>
       </div>
@@ -51,6 +66,7 @@ class HassSubpage extends LitElement {
         color: var(--text-primary-color, white);
       }
 
+      ha-menu-button,
       ha-paper-icon-button-arrow-prev,
       ::slotted([slot="toolbar-icon"]) {
         pointer-events: auto;