From 41a06a22bbab9f4c9941eacf29de5c254ff4a860 Mon Sep 17 00:00:00 2001
From: Outvi V <19144373+outloudvi@users.noreply.github.com>
Date: Thu, 3 Feb 2022 00:09:01 +0800
Subject: [PATCH] feat(route): add dockerhub image new tag (#8965)

* feat: /dockerhub/tags/:owner/:image

fix #6916

* fix: update the doc link of /dockerhub/build

* docs(en): /dockerhub/tag/:owner/:image

* docs: fix typo

* fix(dockerhub/tags): use parseDate()

* docs: link docs to h2 instead of h3

* chore: move /dockerhub/build to v2

* docs: put warning inside <Route>

* fix(dockerhub): use docker.com/hub as the radar path

* fix(dockerhub/tag): add :limits?

* feat(dockerhub): polish the GUID

* fix(dockerhub/tag): stricter argument checks

* fix(dockerhub/tag): handle NaN per Deepscan CI
---
 assets/radar-rules.js                 | 11 ---------
 docs/en/program-update.md             | 16 ++++++++++++-
 docs/program-update.md                | 16 ++++++++++++-
 lib/radar-rules.js                    | 11 ---------
 lib/router.js                         |  3 ---
 lib/{routes => v2}/dockerhub/build.js |  4 +++-
 lib/v2/dockerhub/maintainer.js        |  4 ++++
 lib/v2/dockerhub/radar.js             | 19 +++++++++++++++
 lib/v2/dockerhub/router.js            |  4 ++++
 lib/v2/dockerhub/tag.js               | 33 +++++++++++++++++++++++++++
 lib/v2/dockerhub/utils.js             | 10 ++++++++
 11 files changed, 103 insertions(+), 28 deletions(-)
 rename lib/{routes => v2}/dockerhub/build.js (82%)
 create mode 100644 lib/v2/dockerhub/maintainer.js
 create mode 100644 lib/v2/dockerhub/radar.js
 create mode 100644 lib/v2/dockerhub/router.js
 create mode 100644 lib/v2/dockerhub/tag.js
 create mode 100644 lib/v2/dockerhub/utils.js

diff --git a/assets/radar-rules.js b/assets/radar-rules.js
index 01f701b6f1..4733c75678 100644
--- a/assets/radar-rules.js
+++ b/assets/radar-rules.js
@@ -312,17 +312,6 @@
     },
     'wineyun.com': { _name: '酒云网', www: [{ title: '最新商品', docs: 'https://docs.rsshub.app/other.html#jiu-yun-wang', source: ['/:category'], target: '/wineyun/:category' }] },
     'epicgames.com': { _name: 'Epic Games', www: [{ title: '每周免费游戏', docs: 'https://docs.rsshub.app/game.html#epicgames-freegame', source: '/store/zh-CN/free-games', target: '/epicgames/freegames' }] },
-    'docker.com': {
-        _name: 'Docker',
-        hub: [
-            {
-                title: '镜像有新 Build',
-                docs: 'https://docs.rsshub.app/program-update.html#docker-hub',
-                source: ['/r/:owner/:image', '/r/:owner/:image/tags', '/_/:image'],
-                target: (params) => `/dockerhub/build/${params.owner ? params.owner : 'library'}/${params.image}`,
-            },
-        ],
-    },
     'nga.cn': {
         _name: 'NGA',
         bbs: [
diff --git a/docs/en/program-update.md b/docs/en/program-update.md
index dd0a673164..e174eaa5bf 100644
--- a/docs/en/program-update.md
+++ b/docs/en/program-update.md
@@ -112,7 +112,7 @@ For example: `https://www.curseforge.com/sc2/assets/taylor-mouses-stuff/files` t
 
 ### Image New Build
 
-<RouteEn author="HenryQW" example="/dockerhub/build/wangqiru/ttrss" path="/dockerhub/build/:owner/:image/:tag?" :paramsDesc="['Image owner', 'Image name', 'Image tag，default to latest']"/>
+<RouteEn author="HenryQW" example="/dockerhub/build/wangqiru/ttrss" path="/dockerhub/build/:owner/:image/:tag?" :paramsDesc="['Image owner', 'Image name', 'Image tag，default to latest']">
 
 ::: warning
 
@@ -120,6 +120,20 @@ The owner of the official image fills in the library, for example: https://rsshu
 
 :::
 
+</RouteEn>
+
+### Image New Tag
+
+<RouteEn author="outloudvi" example="/dockerhub/tag/library/mariadb" path="/dockerhub/tag/:owner/:image/:limits?" :paramsDesc="['Image owner', 'Image name', 'Tag count, 10 by default']">
+
+::: warning
+
+Use `library` as the `owner` for official images, such as <https://rsshub.app/dockerhub/tag/library/mysql>
+
+:::
+
+</RouteEn>
+
 ## Eagle
 
 ### Changelog
diff --git a/docs/program-update.md b/docs/program-update.md
index f94a79b0d6..eac0cd60cd 100644
--- a/docs/program-update.md
+++ b/docs/program-update.md
@@ -150,7 +150,7 @@ pageClass: routes
 
 ### 镜像有新 Build
 
-<Route author="HenryQW" example="/dockerhub/build/wangqiru/ttrss" path="/dockerhub/build/:owner/:image/:tag?" :paramsDesc="['镜像作者', '镜像名称', '镜像标签，默认 latest']" radar="1" rssbud="1"/>
+<Route author="HenryQW" example="/dockerhub/build/wangqiru/ttrss" path="/dockerhub/build/:owner/:image/:tag?" :paramsDesc="['镜像作者', '镜像名称', '镜像标签，默认 latest']" radar="1" rssbud="1">
 
 ::: warning 注意
 
@@ -158,6 +158,20 @@ pageClass: routes
 
 :::
 
+</Route>
+
+### 镜像有新 Tag
+
+<Route author="outloudvi" example="/dockerhub/tag/library/mariadb" path="/dockerhub/tag/:owner/:image/:limits?" :paramsDesc="['镜像作者', '镜像名称', 'tag 数量，默认为 10']" radar="1" rssbud="1">
+
+::: warning 注意
+
+官方镜像的 owner 填写 library, 如: <https://rsshub.app/dockerhub/tag/library/mysql>
+
+:::
+
+</Route>
+
 ## Eagle
 
 ### 更新日志
diff --git a/lib/radar-rules.js b/lib/radar-rules.js
index 172a99f586..d139a277f4 100644
--- a/lib/radar-rules.js
+++ b/lib/radar-rules.js
@@ -786,17 +786,6 @@ module.exports = {
             },
         ],
     },
-    'docker.com': {
-        _name: 'Docker',
-        hub: [
-            {
-                title: '镜像有新 Build',
-                docs: 'https://docs.rsshub.app/program-update.html#docker-hub',
-                source: ['/r/:owner/:image', '/r/:owner/:image/tags', '/_/:image'],
-                target: (params) => `/dockerhub/build/${params.owner ? params.owner : 'library'}/${params.image}`,
-            },
-        ],
-    },
     'nga.cn': {
         _name: 'NGA',
         bbs: [
diff --git a/lib/router.js b/lib/router.js
index 53f3d821dc..0da6266b4c 100644
--- a/lib/router.js
+++ b/lib/router.js
@@ -1376,9 +1376,6 @@ router.get('/meipai/user/:uid', lazyloadRouteHandler('./routes/meipai/user'));
 // 多知网
 router.get('/duozhi', lazyloadRouteHandler('./routes/duozhi'));
 
-// Docker Hub
-router.get('/dockerhub/build/:owner/:image/:tag?', lazyloadRouteHandler('./routes/dockerhub/build'));
-
 // 人人都是产品经理
 router.get('/woshipm/popular', lazyloadRouteHandler('./routes/woshipm/popular'));
 router.get('/woshipm/wen', lazyloadRouteHandler('./routes/woshipm/wen'));
diff --git a/lib/routes/dockerhub/build.js b/lib/v2/dockerhub/build.js
similarity index 82%
rename from lib/routes/dockerhub/build.js
rename to lib/v2/dockerhub/build.js
index da6897369b..7f9611fdbd 100644
--- a/lib/routes/dockerhub/build.js
+++ b/lib/v2/dockerhub/build.js
@@ -1,4 +1,5 @@
 const got = require('@/utils/got');
+const { hash } = require('./utils');
 
 module.exports = async (ctx) => {
     const { owner, image, tag = 'latest' } = ctx.params;
@@ -22,7 +23,8 @@ module.exports = async (ctx) => {
                 link: `https://hub.docker.com/layers/docker/${namespace}/${tag}/images/${item.images[0].digest.replace(':', '-')}`,
                 author: owner,
                 pubDate: new Date(item.last_updated).toUTCString(),
-                guid: item.last_updated,
+                // only check for different images hashes (considering varients of all arches), since the tag name is already fixed
+                guid: hash(item.images),
             },
         ],
     };
diff --git a/lib/v2/dockerhub/maintainer.js b/lib/v2/dockerhub/maintainer.js
new file mode 100644
index 0000000000..67edecf56d
--- /dev/null
+++ b/lib/v2/dockerhub/maintainer.js
@@ -0,0 +1,4 @@
+module.exports = {
+    '/build/:owner/:image/:tag?': ['HenryQW'],
+    '/tag/:owner/:image': ['outloudvi'],
+};
diff --git a/lib/v2/dockerhub/radar.js b/lib/v2/dockerhub/radar.js
new file mode 100644
index 0000000000..f2a9a1587a
--- /dev/null
+++ b/lib/v2/dockerhub/radar.js
@@ -0,0 +1,19 @@
+module.exports = {
+    'docker.com': {
+        _name: 'Docker Hub',
+        hub: [
+            {
+                title: '镜像有新 Build',
+                docs: 'https://docs.rsshub.app/program-update.html#docker-hub',
+                source: ['/r/:owner/:image', '/r/:owner/:image/tags', '/_/:image'],
+                target: (params) => `/dockerhub/build/${params.owner ? params.owner : 'library'}/${params.image}`,
+            },
+            {
+                title: '镜像有新 Tag',
+                docs: 'https://docs.rsshub.app/program-update.html#docker-hub',
+                source: ['/r/:owner/:image', '/r/:owner/:image/tags', '/_/:image'],
+                target: (params) => `/dockerhub/tag/${params.owner ? params.owner : 'library'}/${params.image}`,
+            },
+        ],
+    },
+};
diff --git a/lib/v2/dockerhub/router.js b/lib/v2/dockerhub/router.js
new file mode 100644
index 0000000000..ff340b7451
--- /dev/null
+++ b/lib/v2/dockerhub/router.js
@@ -0,0 +1,4 @@
+module.exports = function (router) {
+    router.get('/build/:owner/:image/:tag?', require('./build'));
+    router.get('/tag/:owner/:image/:limits?', require('./tag'));
+};
diff --git a/lib/v2/dockerhub/tag.js b/lib/v2/dockerhub/tag.js
new file mode 100644
index 0000000000..a59fe53a2b
--- /dev/null
+++ b/lib/v2/dockerhub/tag.js
@@ -0,0 +1,33 @@
+const got = require('@/utils/got');
+const { parseDate } = require('@/utils/parse-date');
+const { hash } = require('./utils');
+
+module.exports = async (ctx) => {
+    const { owner, image, limits } = ctx.params;
+
+    const namespace = `${owner}/${image}`;
+    const link = `https://hub.docker.com/r/${namespace}`;
+
+    const pageSize = !isNaN(parseInt(limits)) ? parseInt(limits) : 10;
+
+    const data = await got.get(`https://hub.docker.com/v2/repositories/${namespace}/tags/?page_size=${pageSize}`);
+    const metadata = await got.get(`https://hub.docker.com/v2/repositories/${namespace}/`);
+
+    const tags = data.data.results;
+
+    ctx.state.data = {
+        title: `${namespace} tags`,
+        description: metadata.data.description,
+        link,
+        language: 'en',
+        item: tags.map((item) => ({
+            title: `${namespace}:${item.name} was updated`,
+            description: `${namespace}:${item.name} was updated, supporting the architectures of ${item.images.map((img) => `${img.os}/${img.architecture}`).join(', ')}`,
+            link: `https://hub.docker.com/layers/${owner === 'library' ? `${image}/` : ''}${namespace}/${item.name}/images/${item.images[0].digest.replace(':', '-')}`,
+            author: owner,
+            pubDate: parseDate(item.tag_last_pushed),
+            // check for (1) different tag names and (2) different image hashes, considering varients of all arches
+            guid: `${namespace}:${item.name}@${hash(item.images)}`,
+        })),
+    };
+};
diff --git a/lib/v2/dockerhub/utils.js b/lib/v2/dockerhub/utils.js
new file mode 100644
index 0000000000..e6ad13b55a
--- /dev/null
+++ b/lib/v2/dockerhub/utils.js
@@ -0,0 +1,10 @@
+const md5 = require('@/utils/md5');
+
+function hash(images) {
+    const entries = Object.entries(images)
+        .map((x) => [`${x.os}/${x.architecture}`, x.digest])
+        .sort((a, b) => a[0] - b[0]);
+    return md5(entries.map((x) => x.join(',')).join('|'));
+}
+
+module.exports = { hash };