From 244e54c594be66d0a73524d0d8743f420b95aaed Mon Sep 17 00:00:00 2001
From: Yufan Sheng <syhily@gmail.com>
Date: Tue, 25 Jun 2024 20:21:22 +0800
Subject: [PATCH] feat: make the external link to be opened in new blank.

---
 .vscode/settings.json |  1 +
 README.md             |  1 -
 astro.config.ts       |  2 ++
 package-lock.json     | 33 +++++++++++++++++++++++++++++++++
 package.json          |  1 +
 5 files changed, 37 insertions(+), 1 deletion(-)

diff --git a/.vscode/settings.json b/.vscode/settings.json
index e4558fc..b543a12 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -106,6 +106,7 @@
     "recma",
     "redmi",
     "regclass",
+    "rehype",
     "rivo",
     "sauvignon",
     "sheng",
diff --git a/README.md b/README.md
index 820be68..f15740e 100644
--- a/README.md
+++ b/README.md
@@ -180,7 +180,6 @@ You should host it on your own machine.
 
 - [ ] Check article grammar errors by using ChatGPT. Remain **54** posts.
 - [ ] Add music to the articles. Remain **54** posts.
-- [ ] External article inner links with different targets.
 - [ ] Slide share components integration.
 
 ### Comments TODO Checklist
diff --git a/astro.config.ts b/astro.config.ts
index 2857a63..fa6eb3a 100644
--- a/astro.config.ts
+++ b/astro.config.ts
@@ -1,6 +1,7 @@
 import mdx from '@astrojs/mdx';
 import node from '@astrojs/node';
 import { defineConfig, envField } from 'astro/config';
+import rehypeExternalLinks from 'rehype-external-links';
 import options from './options';
 import { astroImage } from './plugins/images';
 import { uploader } from './plugins/uploader';
@@ -35,6 +36,7 @@ export default defineConfig({
   integrations: [
     mdx({
       remarkPlugins: [astroImage],
+      rehypePlugins: [[rehypeExternalLinks, { rel: 'nofollow', target: '_blank' }]],
     }),
     uploader({
       paths: ['images', 'og', 'cats'],
diff --git a/package-lock.json b/package-lock.json
index 5b262c3..8809b7f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -40,6 +40,7 @@
         "prettier-plugin-astro": "^0.14.0",
         "prettier-plugin-astro-organize-imports": "^0.4.8",
         "prettier-plugin-organize-imports": "^3.2.4",
+        "rehype-external-links": "^3.0.0",
         "resize-sensor": "^0.0.6",
         "rimraf": "^5.0.7",
         "sharp": "^0.33.4",
@@ -6274,6 +6275,19 @@
       "integrity": "sha512-7NXolsK4CAS5+xvdj5OMMbI962hU/wvwoxk+LWR9Ek9bVtyuuYScDN6eS0rUm6TxApFpw7CX1o4uJzcd4AyD3Q==",
       "license": "MIT"
     },
+    "node_modules/is-absolute-url": {
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/is-absolute-url/-/is-absolute-url-4.0.1.tgz",
+      "integrity": "sha512-/51/TKE88Lmm7Gc4/8btclNXWS+g50wXhYJq8HWIBAGUBnoAdRu1aXeh364t/O7wXDAcTJDP8PNuNKWUDWie+A==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": "^12.20.0 || ^14.13.1 || >=16.0.0"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
     "node_modules/is-alphabetical": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/is-alphabetical/-/is-alphabetical-2.0.1.tgz",
@@ -8839,6 +8853,25 @@
         "url": "https://opencollective.com/unified"
       }
     },
+    "node_modules/rehype-external-links": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/rehype-external-links/-/rehype-external-links-3.0.0.tgz",
+      "integrity": "sha512-yp+e5N9V3C6bwBeAC4n796kc86M4gJCdlVhiMTxIrJG5UHDMh+PJANf9heqORJbt1nrCbDwIlAZKjANIaVBbvw==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@types/hast": "^3.0.0",
+        "@ungap/structured-clone": "^1.0.0",
+        "hast-util-is-element": "^3.0.0",
+        "is-absolute-url": "^4.0.0",
+        "space-separated-tokens": "^2.0.0",
+        "unist-util-visit": "^5.0.0"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/unified"
+      }
+    },
     "node_modules/rehype-parse": {
       "version": "9.0.0",
       "resolved": "https://registry.npmjs.org/rehype-parse/-/rehype-parse-9.0.0.tgz",
diff --git a/package.json b/package.json
index bffb35d..3300de7 100644
--- a/package.json
+++ b/package.json
@@ -72,6 +72,7 @@
     "prettier-plugin-astro": "^0.14.0",
     "prettier-plugin-astro-organize-imports": "^0.4.8",
     "prettier-plugin-organize-imports": "^3.2.4",
+    "rehype-external-links": "^3.0.0",
     "resize-sensor": "^0.0.6",
     "rimraf": "^5.0.7",
     "sharp": "^0.33.4",