Merge pull request #77 from kremalicious/feature/hostname

Hostname check

package.json

@@ -9,6 +9,7 @@
   "author": "Matthias Kretschmann <m@kretschmann.io>",
   "scripts": {
     "start": "./node_modules/gatsby/dist/bin/gatsby.js develop",
+    "ssr": "npm run build && serve -s public/",
     "lint:js": "eslint ./gatsby-*.js && eslint ./src/**/*.{js,jsx}",
     "lint:css": "stylelint ./src/**/*.{css,scss}",
     "lint": "npm run lint:js && npm run lint:css",
@@ -22,14 +23,14 @@
   },
   "dependencies": {
     "file-saver": "^2.0.0",
-    "gatsby": "^2.0.63",
+    "gatsby": "^2.0.64",
     "gatsby-image": "^2.0.22",
     "gatsby-plugin-favicon": "^3.1.4",
     "gatsby-plugin-matomo": "^0.6.0",
-    "gatsby-plugin-offline": "^2.0.18",
+    "gatsby-plugin-offline": "^2.0.19",
     "gatsby-plugin-react-helmet": "^3.0.4",
     "gatsby-plugin-sass": "^2.0.7",
-    "gatsby-plugin-sharp": "^2.0.14",
+    "gatsby-plugin-sharp": "^2.0.15",
     "gatsby-plugin-sitemap": "^2.0.3",
     "gatsby-plugin-svgr": "^2.0.1",
     "gatsby-source-filesystem": "^2.0.11",
@@ -40,7 +41,7 @@
     "graphql": "^0.13.2",
     "intersection-observer": "^0.5.1",
     "js-yaml": "^3.12.0",
-    "node-sass": "^4.10.0",
+    "node-sass": "^4.11.0",
     "react": "^16.6.3",
     "react-dom": "^16.6.3",
     "react-helmet": "^5.2.0",
@@ -59,7 +60,7 @@
     "ava": "^0.25.0",
     "babel-eslint": "^10.0.1",
     "chrome-launcher": "^0.10.5",
-    "eslint": "^5.9.0",
+    "eslint": "^5.10.0",
     "eslint-config-prettier": "^3.3.0",
     "eslint-loader": "^2.1.1",
     "eslint-plugin-graphql": "^3.0.1",

src/components/Layout.jsx

@@ -3,6 +3,7 @@ import PropTypes from 'prop-types'
 import posed, { PoseGroup } from 'react-pose'
 import { fadeIn } from './atoms/Transitions'
 import Typekit from './atoms/Typekit'
+import HostnameCheck from './atoms/HostnameCheck'
 import Header from './organisms/Header'
 import Footer from './organisms/Footer'
 import styles from './Layout.module.scss'
@@ -29,6 +30,7 @@ export default class Layout extends PureComponent {
     return (
       <>
         <Typekit />
+        <HostnameCheck />
 
         <PoseGroup animateOnMount={true}>
           <RoutesContainer

src/components/atoms/HostnameCheck.jsx

@@ -0,0 +1,42 @@
+import React, { PureComponent } from 'react'
+import Helmet from 'react-helmet'
+import styles from './HostnameCheck.module.scss'
+
+const allowedHosts = ['matthiaskretschmann.com', 'beta.matthiaskretschmann.com']
+
+export default class HostnameInfo extends PureComponent {
+  checkAllowedHost = () => {
+    if (typeof window !== 'undefined' && window.location) {
+      return allowedHosts.includes(window.location.hostname)
+    }
+  }
+
+  state = {
+    // default to true so SSR builds never show the banner
+    isAllowedHost: true
+  }
+
+  componentDidMount() {
+    const isAllowedHost = this.checkAllowedHost()
+    this.setState({ isAllowedHost })
+  }
+
+  render() {
+    // return nothing if we're on an allowed host
+    if (this.state.isAllowedHost) return null
+
+    return (
+      <>
+        <Helmet>
+          <meta name="robots" content="noindex,nofollow" />
+        </Helmet>
+        <aside className={styles.hostnameInfo}>
+          <p>{`Hi there 👋. Please note that only the code and documentation of this
+          site are open source. But my logo and the combination of typography,
+          colors, and layout making up my brand identity are not. Don't just
+          clone, do a remix.`}</p>
+        </aside>
+      </>
+    )
+  }
+}

src/components/atoms/HostnameCheck.module.scss

@@ -0,0 +1,22 @@
+@import 'variables';
+
+.hostnameInfo {
+    position: sticky;
+    top: 0;
+    z-index: 99;
+    padding: $spacer / 3;
+    font-size: $font-size-small;
+    font-weight: bold;
+    background: rgba($brand-light, .8);
+
+    :global(.dark) & {
+        background: rgba($body-background-color--dark, .8);
+    }
+
+    p {
+        margin: auto;
+        margin-bottom: 0;
+        max-width: $screen-lg;
+        text-align: center;
+    }
+}

src/components/atoms/Vcard.jsx

@@ -1,4 +1,4 @@
-import React from 'react'
+import React, { PureComponent } from 'react'
 import { StaticQuery, graphql } from 'gatsby'
 import saveAs from 'file-saver'
 import vCard from 'vcf'
@@ -31,30 +31,34 @@ const query = graphql`
   }
 `
 
-const Vcard = () => (
-  <StaticQuery
-    query={query}
-    render={data => {
-      const meta = data.dataYaml
+export default class Vcard extends PureComponent {
+  render() {
+    return (
+      <StaticQuery
+        query={query}
+        render={data => {
+          const meta = data.dataYaml
 
-      const handleAddressbookClick = e => {
-        e.preventDefault()
-        constructVcard(meta)
-      }
+          const handleAddressbookClick = e => {
+            e.preventDefault()
+            constructVcard(meta)
+          }
 
-      return (
-        <a
-          // href is kinda fake, only there for usability
-          // so user knows what to expect when hovering the link before clicking
-          href={meta.addressbook}
-          onClick={handleAddressbookClick}
-        >
-          Add to addressbook
-        </a>
-      )
-    }}
-  />
-)
+          return (
+            <a
+              // href is kinda fake, only there for usability
+              // so user knows what to expect when hovering the link before clicking
+              href={meta.addressbook}
+              onClick={handleAddressbookClick}
+            >
+              Add to addressbook
+            </a>
+          )
+        }}
+      />
+    )
+  }
+}
 
 // Construct the download from a blob of the just constructed vCard,
 // and save it to user's file system
@@ -120,5 +124,3 @@ const toDataURL = (src, callback, outputFormat) => {
     img.src = src
   }
 }
-
-export default Vcard