feat: add wordpress config for http images (#6790)

* wordpress: add cdn for images

* wordpress: use envars to define cdn url

* wordpress: fix english doc

* wordpress: update route

* wordpress: update docs

Co-authored-by: duhd1993 <duhd1993@gmail.com>

docs/en/blog.md

@@ -37,3 +37,8 @@ pageClass: routes
 ### Article
 
 <RouteEn author="CitrusIce" example="/phrack" path="/phrack" />
+
+## WordPress
+
+<Route author="Lonor" example="/blogs/wordpress/lawrence.code.blog" path="/blogs/wordpress/:domain/:https?" :paramsDesc="['WordPress blog domain', 'use https by default. options: `http` or `https`']"/>
+

docs/en/install/README.md

@@ -522,3 +522,15 @@ See docs of specified route and `lib/config.js` for detail information.
 -   Sci-hub for scientific journal routes:
 
     -   `SCIHUB_HOST`: The Sci-hub mirror address that is accssible from your location, default to `https://sci-hub.se`.
+
+-   Wordpress:
+    -   `WORDPRESS_CDN`: Proxy http image link with https link. Consider using:
+
+        | url                                      | backbone     |
+        | ---------------------------------------- | ------------ |
+        | https://imageproxy.pimg.tw/resize?url=   | akamai       |
+        | https://images.weserv.nl/?url=           | cloudflare   |
+        | https://pic1.xuehuaimg.com/proxy/        | cloudflare   |
+        | https://cors.netnr.workers.dev/          | cloudflare   |
+        | https://netnr-proxy.openode.io/          | digitalocean |
+

docs/install/README.md

@@ -654,3 +654,15 @@ RSSHub 支持使用访问密钥 / 码，白名单和黑名单三种方式进行
 
     -   `ZHIHU_COOKIES`: 知乎登录后的 cookie 值.
         1.  可以在知乎网页版的一些请求的请求头中找到，如 `GET /moments` 请求头中的 `cookie` 值.
+
+-   Wordpress
+
+    -   `WORDPRESS_CDN`: 用于中转 http 图片链接。可供考虑的服务见下表：
+
+        | url                                      | backbone     |
+        | ---------------------------------------- | ------------ |
+        | <https://imageproxy.pimg.tw/resize?url=> | akamai       |
+        | <https://images.weserv.nl/?url=>         | cloudflare   |
+        | <https://pic1.xuehuaimg.com/proxy/>      | cloudflare   |
+        | <https://cors.netnr.workers.dev/>        | cloudflare   |
+        | <https://netnr-proxy.openode.io/>        | digitalocean |

lib/config.js

@@ -188,6 +188,9 @@ const calculateValue = () => {
         scboy: {
             token: envs.SCBOY_BBS_TOKEN,
         },
+        wordpress: {
+            cdnUrl: envs.WORDPRESS_CDN,
+        },
     };
 };
 calculateValue();

lib/routes/blogs/wordpress.js

@@ -1,7 +1,10 @@
 const parser = require('@/utils/rss-parser');
+const config = require('@/config').value;
 
 module.exports = async (ctx) => {
     const scheme = ctx.params.https || 'https';
+    const cdn = config.wordpress.cdnUrl;
+
     const domain = `${scheme}://${ctx.params.domain}`;
     const feed = await parser.parseURL(`${domain}/feed/`);
     const items = await Promise.all(
@@ -10,9 +13,21 @@ module.exports = async (ctx) => {
             if (cache) {
                 return Promise.resolve(JSON.parse(cache));
             }
+            const description =
+                scheme === 'https' || !cdn
+                    ? item['content:encoded']
+                    : item['content:encoded'].replace(/(?<=<img.*src=")(.*)(?=".*\/>)/g, function (match, p) {
+                          if (p[0] === '/') {
+                              return cdn + feed.link + p;
+                          } else if (p.slice(0, 5) === 'http:') {
+                              return cdn + p;
+                          } else {
+                              return p;
+                          }
+                      });
             const article = {
                 title: item.title,
-                description: item['content:encoded'],
+                description: description,
                 pubDate: item.pubDate,
                 link: item.link,
                 author: item.creator,