client/web: split out UI components

This commit makes the following structural changes to the web
client interface. No user-visible changes.

1. Splits login, legacy, readonly, and full management clients into
   their own components, and pulls them out into their own view files.
2. Renders the same Login component for all scenarios when the client
   is not logged in, regardless of legacy or debug mode. Styling comes
   from the existing legacy login, which is removed from legacy.tsx
   now that it is shared.
3. Adds a ui folder to hold non-Tailscale-specific components,
   starting with ProfilePic, previously housed in app.tsx.

Updates tailscale/corp#14335

Signed-off-by: Sonia Appasamy <sonia@tailscale.com>

client/web/src/components/views/legacy-client-view.tsx

@@ -0,0 +1,232 @@
+import cx from "classnames"
+import React from "react"
+import { apiFetch } from "src/api"
+import { NodeData, NodeUpdate } from "src/hooks/node-data"
+
+// TODO(tailscale/corp#13775): legacy.tsx contains a set of components
+// that (crudely) implement the pre-2023 web client. These are implemented
+// purely to ease migration to the new React-based web client, and will
+// eventually be completely removed.
+
+export default function LegacyClientView({
+  data,
+  refreshData,
+  updateNode,
+}: {
+  data: NodeData
+  refreshData: () => void
+  updateNode: (update: NodeUpdate) => void
+}) {
+  return (
+    <div className="container max-w-lg mx-auto mb-8 py-6 px-8 bg-white rounded-md shadow-2xl">
+      <Header data={data} refreshData={refreshData} updateNode={updateNode} />
+      <IP data={data} />
+      {data.Status === "NeedsMachineAuth" ? (
+        <div className="mb-4">
+          This device is authorized, but needs approval from a network admin
+          before it can connect to the network.
+        </div>
+      ) : (
+        <>
+          <div className="mb-4">
+            <p>
+              You are connected! Access this device over Tailscale using the
+              device name or IP address above.
+            </p>
+          </div>
+          <button
+            className={cx("button button-medium mb-4", {
+              "button-red": data.AdvertiseExitNode,
+              "button-blue": !data.AdvertiseExitNode,
+            })}
+            id="enabled"
+            onClick={() =>
+              updateNode({ AdvertiseExitNode: !data.AdvertiseExitNode })
+            }
+          >
+            {data.AdvertiseExitNode
+              ? "Stop advertising Exit Node"
+              : "Advertise as Exit Node"}
+          </button>
+        </>
+      )}
+    </div>
+  )
+}
+
+export function Header({
+  data,
+  refreshData,
+  updateNode,
+}: {
+  data: NodeData
+  refreshData: () => void
+  updateNode: (update: NodeUpdate) => void
+}) {
+  return (
+    <header className="flex justify-between items-center min-width-0 py-2 mb-8">
+      <svg
+        width="26"
+        height="26"
+        viewBox="0 0 23 23"
+        fill="none"
+        xmlns="http://www.w3.org/2000/svg"
+        className="flex-shrink-0 mr-4"
+      >
+        <circle
+          opacity="0.2"
+          cx="3.4"
+          cy="3.25"
+          r="2.7"
+          fill="currentColor"
+        ></circle>
+        <circle cx="3.4" cy="11.3" r="2.7" fill="currentColor"></circle>
+        <circle
+          opacity="0.2"
+          cx="3.4"
+          cy="19.5"
+          r="2.7"
+          fill="currentColor"
+        ></circle>
+        <circle cx="11.5" cy="11.3" r="2.7" fill="currentColor"></circle>
+        <circle cx="11.5" cy="19.5" r="2.7" fill="currentColor"></circle>
+        <circle
+          opacity="0.2"
+          cx="11.5"
+          cy="3.25"
+          r="2.7"
+          fill="currentColor"
+        ></circle>
+        <circle
+          opacity="0.2"
+          cx="19.5"
+          cy="3.25"
+          r="2.7"
+          fill="currentColor"
+        ></circle>
+        <circle cx="19.5" cy="11.3" r="2.7" fill="currentColor"></circle>
+        <circle
+          opacity="0.2"
+          cx="19.5"
+          cy="19.5"
+          r="2.7"
+          fill="currentColor"
+        ></circle>
+      </svg>
+      <div className="flex items-center justify-end space-x-2 w-2/3">
+        {data.Profile &&
+          data.Status !== "NoState" &&
+          data.Status !== "NeedsLogin" && (
+            <>
+              <div className="text-right w-full leading-4">
+                <h4 className="truncate leading-normal">
+                  {data.Profile.LoginName}
+                </h4>
+                <div className="text-xs text-gray-500 text-right">
+                  <button
+                    onClick={() => updateNode({ Reauthenticate: true })}
+                    className="hover:text-gray-700"
+                  >
+                    Switch account
+                  </button>{" "}
+                  |{" "}
+                  <button
+                    onClick={() => updateNode({ Reauthenticate: true })}
+                    className="hover:text-gray-700"
+                  >
+                    Reauthenticate
+                  </button>{" "}
+                  |{" "}
+                  <button
+                    onClick={() =>
+                      apiFetch("/local/v0/logout", "POST")
+                        .then(refreshData)
+                        .catch((err) => alert("Logout failed: " + err.message))
+                    }
+                    className="hover:text-gray-700"
+                  >
+                    Logout
+                  </button>
+                </div>
+              </div>
+              <div className="relative flex-shrink-0 w-8 h-8 rounded-full overflow-hidden">
+                {data.Profile.ProfilePicURL ? (
+                  <div
+                    className="w-8 h-8 flex pointer-events-none rounded-full bg-gray-200"
+                    style={{
+                      backgroundImage: `url(${data.Profile.ProfilePicURL})`,
+                      backgroundSize: "cover",
+                    }}
+                  />
+                ) : (
+                  <div className="w-8 h-8 flex pointer-events-none rounded-full border border-gray-400 border-dashed" />
+                )}
+              </div>
+            </>
+          )}
+      </div>
+    </header>
+  )
+}
+
+export function IP(props: { data: NodeData }) {
+  const { data } = props
+
+  if (!data.IP) {
+    return null
+  }
+
+  return (
+    <>
+      <div className="border border-gray-200 bg-gray-50 rounded-md p-2 pl-3 pr-3 width-full flex items-center justify-between">
+        <div className="flex items-center min-width-0">
+          <svg
+            className="flex-shrink-0 text-gray-600 mr-3 ml-1"
+            xmlns="http://www.w3.org/2000/svg"
+            width="20"
+            height="20"
+            viewBox="0 0 24 24"
+            fill="none"
+            stroke="currentColor"
+            strokeWidth="2"
+            strokeLinecap="round"
+            strokeLinejoin="round"
+          >
+            <rect x="2" y="2" width="20" height="8" rx="2" ry="2"></rect>
+            <rect x="2" y="14" width="20" height="8" rx="2" ry="2"></rect>
+            <line x1="6" y1="6" x2="6.01" y2="6"></line>
+            <line x1="6" y1="18" x2="6.01" y2="18"></line>
+          </svg>
+          <h4 className="font-semibold truncate mr-2">
+            {data.DeviceName || "Your device"}
+          </h4>
+        </div>
+        <h5>{data.IP}</h5>
+      </div>
+      <p className="mt-1 ml-1 mb-6 text-xs text-gray-600">
+        Debug info: Tailscale {data.IPNVersion}, tun={data.TUNMode.toString()}
+        {data.IsSynology && (
+          <>
+            , DSM{data.DSMVersion}
+            {data.TUNMode || (
+              <>
+                {" "}
+                (
+                <a
+                  href="https://tailscale.com/kb/1152/synology-outbound/"
+                  className="link-underline text-gray-600"
+                  target="_blank"
+                  aria-label="Configure outbound synology traffic"
+                  rel="noopener noreferrer"
+                >
+                  outgoing access not configured
+                </a>
+                )
+              </>
+            )}
+          </>
+        )}
+      </p>
+    </>
+  )
+}

client/web/src/components/views/login-client-view.tsx

@@ -0,0 +1,65 @@
+import React from "react"
+import { NodeData } from "src/hooks/node-data"
+import { ReactComponent as TailscaleIcon } from "src/icons/tailscale-icon.svg"
+
+/**
+ * LoginClientView is rendered when the client is not authenticated
+ * to a tailnet.
+ */
+export default function LoginClientView({
+  data,
+  onLoginClick,
+}: {
+  data: NodeData
+  onLoginClick: () => void
+}) {
+  return (
+    <div className="mb-8 py-6 px-8 bg-white rounded-md shadow-2xl">
+      <TailscaleIcon className="my-2 mb-8" />
+      {data.IP ? (
+        <>
+          <div className="mb-6">
+            <p className="text-gray-700">
+              Your device's key has expired. Reauthenticate this device by
+              logging in again, or{" "}
+              <a
+                href="https://tailscale.com/kb/1028/key-expiry"
+                className="link"
+                target="_blank"
+              >
+                learn more
+              </a>
+              .
+            </p>
+          </div>
+          <button
+            onClick={onLoginClick}
+            className="button button-blue w-full mb-4"
+          >
+            Reauthenticate
+          </button>
+        </>
+      ) : (
+        <>
+          <div className="mb-6">
+            <h3 className="text-3xl font-semibold mb-3">Log in</h3>
+            <p className="text-gray-700">
+              Get started by logging in to your Tailscale network.
+              Or,&nbsp;learn&nbsp;more at{" "}
+              <a href="https://tailscale.com/" className="link" target="_blank">
+                tailscale.com
+              </a>
+              .
+            </p>
+          </div>
+          <button
+            onClick={onLoginClick}
+            className="button button-blue w-full mb-4"
+          >
+            Log In
+          </button>
+        </>
+      )}
+    </div>
+  )
+}

client/web/src/components/views/management-client-view.tsx

@@ -0,0 +1,35 @@
+import React from "react"
+import { NodeData } from "src/hooks/node-data"
+import { ReactComponent as ConnectedDeviceIcon } from "src/icons/connected-device.svg"
+import { ReactComponent as TailscaleIcon } from "src/icons/tailscale-icon.svg"
+import ProfilePic from "src/ui/profile-pic"
+
+export default function ManagementClientView(props: NodeData) {
+  return (
+    <div className="px-5 mb-12">
+      <div className="flex justify-between mb-12">
+        <TailscaleIcon />
+        <div className="flex">
+          <p className="mr-2">{props.Profile.LoginName}</p>
+          {/* TODO(sonia): support tagged node profile view more eloquently */}
+          <ProfilePic url={props.Profile.ProfilePicURL} />
+        </div>
+      </div>
+      <p className="tracking-wide uppercase text-gray-600 pb-3">This device</p>
+      <div className="-mx-5 border rounded-md px-5 py-4 bg-white">
+        <div className="flex justify-between items-center text-lg">
+          <div className="flex items-center">
+            <ConnectedDeviceIcon />
+            <p className="font-medium ml-3">{props.DeviceName}</p>
+          </div>
+          <p className="tracking-widest">{props.IP}</p>
+        </div>
+      </div>
+      <p className="text-gray-500 pt-2">
+        Tailscale is up and running. You can connect to this device from devices
+        in your tailnet by using its name or IP address.
+      </p>
+      <button className="button button-blue mt-6">Advertise exit node</button>
+    </div>
+  )
+}

client/web/src/components/views/readonly-client-view.tsx

@@ -0,0 +1,69 @@
+import React from "react"
+import { AuthResponse } from "src/hooks/auth"
+import { NodeData } from "src/hooks/node-data"
+import { ReactComponent as ConnectedDeviceIcon } from "src/icons/connected-device.svg"
+import { ReactComponent as TailscaleLogo } from "src/icons/tailscale-logo.svg"
+import ProfilePic from "src/ui/profile-pic"
+
+/**
+ * ReadonlyClientView is rendered when the web interface is either
+ *
+ * 1. being viewed by a user not allowed to manage the node
+ *    (e.g. user does not own the node)
+ *
+ * 2. or the user is allowed to manage the node but does not
+ *    yet have a valid browser session.
+ */
+export default function ReadonlyClientView({
+  data,
+  auth,
+  waitOnAuth,
+}: {
+  data: NodeData
+  auth?: AuthResponse
+  waitOnAuth: () => Promise<void>
+}) {
+  return (
+    <>
+      <div className="pb-52 mx-auto">
+        <TailscaleLogo />
+      </div>
+      <div className="w-full p-4 bg-stone-50 rounded-3xl border border-gray-200 flex flex-col gap-4">
+        <div className="flex gap-2.5">
+          <ProfilePic url={data.Profile.ProfilePicURL} />
+          <div className="font-medium">
+            <div className="text-neutral-500 text-xs uppercase tracking-wide">
+              Managed by
+            </div>
+            <div className="text-neutral-800 text-sm leading-tight">
+              {/* TODO(sonia): support tagged node profile view more eloquently */}
+              {data.Profile.LoginName}
+            </div>
+          </div>
+        </div>
+        <div className="px-5 py-4 bg-white rounded-lg border border-gray-200 justify-between items-center flex">
+          <div className="flex gap-3">
+            <ConnectedDeviceIcon />
+            <div className="text-neutral-800">
+              <div className="text-lg font-medium leading-[25.20px]">
+                {data.DeviceName}
+              </div>
+              <div className="text-sm leading-tight">{data.IP}</div>
+            </div>
+          </div>
+          {data.DebugMode === "full" && (
+            <button
+              className="button button-blue ml-6"
+              onClick={() => {
+                window.open(auth?.authUrl, "_blank")
+                waitOnAuth()
+              }}
+            >
+              Access
+            </button>
+          )}
+        </div>
+      </div>
+    </>
+  )
+}