From 6c27842bd2a944df03f711ded50cfd9d353d102b Mon Sep 17 00:00:00 2001
From: mineblock11 <93472213+mineblock11@users.noreply.github.com>
Date: Fri, 19 May 2023 23:04:40 +0100
Subject: [PATCH 1/5] Project RSS Feed (atom1, json2, rss2)

---
 package.json                                  |  1 +
 .../routes/feed/[feed_type]/project/[id].js   | 68 +++++++++++++++++++
 2 files changed, 69 insertions(+)
 create mode 100644 server/routes/feed/[feed_type]/project/[id].js

diff --git a/package.json b/package.json
index 8066711b28..f8a39a6b15 100644
--- a/package.json
+++ b/package.json
@@ -30,6 +30,7 @@
   "dependencies": {
     "@ltd/j-toml": "^1.38.0",
     "dayjs": "^1.11.7",
+    "feed": "^4.2.2",
     "floating-vue": "^2.0.0-beta.20",
     "highlight.js": "^11.7.0",
     "js-yaml": "^4.1.0",
diff --git a/server/routes/feed/[feed_type]/project/[id].js b/server/routes/feed/[feed_type]/project/[id].js
new file mode 100644
index 0000000000..5eb326a207
--- /dev/null
+++ b/server/routes/feed/[feed_type]/project/[id].js
@@ -0,0 +1,68 @@
+import { Feed } from 'feed'
+import { renderString } from '~/helpers/parse'
+
+export default defineEventHandler(async (event) => {
+  const config = useRuntimeConfig()
+  const API_URL = config.apiBaseUrl
+  const WEBSITE_URL = config.public.siteUrl
+
+  const projectInformation = await $fetch(API_URL + 'project/' + event.context.params.id)
+  const projectVersions = await $fetch(API_URL + 'project/' + event.context.params.id + '/version')
+  const projectTeam = await $fetch(API_URL + 'project/' + event.context.params.id + '/members')
+
+  let featuredImage = projectInformation.gallery.filter((image) => image.featured)[0]
+
+  if (featuredImage) {
+    featuredImage = featuredImage.url
+  }
+
+  const resultFeed = new Feed({
+    title: projectInformation.title,
+    id: projectInformation.id,
+    description: renderString(projectInformation.description),
+    generator: 'Modrinth',
+    link: WEBSITE_URL + `/${projectInformation.project_type}/${projectInformation.id}`,
+    language: 'en',
+    updated: new Date(projectInformation.updated),
+    favicon: projectInformation.icon_url ?? 'https://cdn.modrinth.com/placeholder.png',
+    image: featuredImage ?? undefined,
+  })
+
+  projectVersions.forEach((version) => {
+    resultFeed.addItem({
+      title: `New Version Released: ${version.name}`,
+      id: `release-${version.id}`,
+      link:
+        WEBSITE_URL +
+        `/${projectInformation.project_type}/${projectInformation.id}/version/${version.id}`,
+      content:
+        `This version is for ${version.game_versions.join(', ')}<br>` +
+        // Check for changelog length being greater than 1 to ensure no blank changelog section.
+        // Legacy changelog support.
+        `<h3>Changelog</h3>${renderString(
+          version.changelog.length > 1 ? version.changelog : 'No changelog was specified.'
+        )}`,
+      author: [
+        ...projectTeam.map((member) => {
+          return {
+            name: member.user.username,
+            link: WEBSITE_URL + `/user/${member.user.id}`,
+          }
+        }),
+      ],
+      date: new Date(version.date_published),
+    })
+  })
+
+  switch (event.context.params.feed_type) {
+    case 'rss':
+      return resultFeed.rss2()
+    case 'atom':
+      return resultFeed.atom1()
+    case 'json':
+      return resultFeed.json1()
+    default:
+      setResponseStatus(event, 404)
+      return 'Invalid Feed Type'
+  }
+})

From 55f7bb1f142d2e2337b143d5c956fa22c3d3bf53 Mon Sep 17 00:00:00 2001
From: mineblock11 <93472213+mineblock11@users.noreply.github.com>
Date: Fri, 19 May 2023 23:07:03 +0100
Subject: [PATCH 2/5] Make feed_type insensitive to capitals

---
 server/routes/feed/[feed_type]/project/[id].js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/server/routes/feed/[feed_type]/project/[id].js b/server/routes/feed/[feed_type]/project/[id].js
index 5eb326a207..b961952396 100644
--- a/server/routes/feed/[feed_type]/project/[id].js
+++ b/server/routes/feed/[feed_type]/project/[id].js
@@ -54,7 +54,7 @@ export default defineEventHandler(async (event) => {
     })
   })
 
-  switch (event.context.params.feed_type) {
+  switch (event.context.params.feed_type.toLowerCase()) {
     case 'rss':
       return resultFeed.rss2()
     case 'atom':

From 881f01ffda38d7623cf5f5741ffefc54778605e0 Mon Sep 17 00:00:00 2001
From: Calum <contact@mineblock11.dev>
Date: Sun, 21 May 2023 14:23:47 +0100
Subject: [PATCH 3/5] Notification Feed

---
 .../routes/feed/[feed_type]/notifications.js  | 67 +++++++++++++++++++
 .../routes/feed/[feed_type]/project/[id].js   | 15 +++--
 2 files changed, 76 insertions(+), 6 deletions(-)
 create mode 100644 server/routes/feed/[feed_type]/notifications.js

diff --git a/server/routes/feed/[feed_type]/notifications.js b/server/routes/feed/[feed_type]/notifications.js
new file mode 100644
index 0000000000..feaec6b0cf
--- /dev/null
+++ b/server/routes/feed/[feed_type]/notifications.js
@@ -0,0 +1,67 @@
+import { Feed } from 'feed'
+import { renderString } from '~/helpers/parse'
+
+export default defineEventHandler(async (event) => {
+  const config = useRuntimeConfig()
+  const API_URL = config.apiBaseUrl
+  const WEBSITE_URL = config.public.siteUrl
+  const authorization = getHeader(event, 'Authorization')
+
+  if (authorization === undefined) {
+    setResponseStatus(event, 401)
+    return 'Please pass a valid authentication token to view your notifications as an RSS feed.'
+  }
+
+  try {
+    const userInfo = await $fetch(API_URL + 'user', {
+      headers: {
+        Authorization: authorization,
+      },
+    })
+
+    const userNotifications = await $fetch(API_URL + `user/${userInfo.id}/notifications`, {
+      headers: {
+        Authorization: authorization,
+      },
+    })
+
+    const feed = new Feed({
+      title: `Notifications for ${userInfo.username}`,
+      link: WEBSITE_URL + '/notifications',
+      generator: 'Modrinth',
+      description: `${userInfo.username} has ${userNotifications.length} notification${
+        userNotifications.length === 1 ? '' : 's'
+      }`,
+    })
+
+    userNotifications.forEach((notification) => {
+      feed.addItem({
+        title: renderString(notification.title),
+        description: renderString(notification.text),
+        id: notification.id,
+        link: WEBSITE_URL + notification.link,
+        date: new Date(notification.created),
+      })
+    })
+
+    switch (event.context.params.feed_type.toLowerCase()) {
+      case 'rss':
+        setResponseHeader(event, 'Content-Type', 'application/rss+xml')
+        return feed.rss2()
+      case 'atom':
+        setResponseHeader(event, 'Content-Type', 'application/atom+xml')
+        return feed.atom1()
+      case 'json':
+        setResponseHeader(event, 'Content-Type', 'application/feed+json')
+        return feed.json1()
+      default:
+        setResponseStatus(event, 500)
+        return 'Invalid Feed Type'
+    }
+  } catch (e) {
+    setResponseStatus(event, 401)
+    return (
+      'Please pass a valid authentication token to view your notifications as an RSS feed.\n\n' + e
+    )
+  }
+})
diff --git a/server/routes/feed/[feed_type]/project/[id].js b/server/routes/feed/[feed_type]/project/[id].js
index b961952396..1de561d06b 100644
--- a/server/routes/feed/[feed_type]/project/[id].js
+++ b/server/routes/feed/[feed_type]/project/[id].js
@@ -16,7 +16,7 @@ export default defineEventHandler(async (event) => {
     featuredImage = featuredImage.url
   }
 
-  const resultFeed = new Feed({
+  const feed = new Feed({
     title: projectInformation.title,
     id: projectInformation.id,
     description: renderString(projectInformation.description),
@@ -29,7 +29,7 @@ export default defineEventHandler(async (event) => {
   })
 
   projectVersions.forEach((version) => {
-    resultFeed.addItem({
+    feed.addItem({
       title: `New Version Released: ${version.name}`,
       id: `release-${version.id}`,
       link:
@@ -56,13 +56,16 @@ export default defineEventHandler(async (event) => {
 
   switch (event.context.params.feed_type.toLowerCase()) {
     case 'rss':
-      return resultFeed.rss2()
+      setResponseHeader(event, 'Content-Type', 'application/rss+xml')
+      return feed.rss2()
     case 'atom':
-      return resultFeed.atom1()
+      setResponseHeader(event, 'Content-Type', 'application/atom+xml')
+      return feed.atom1()
     case 'json':
-      return resultFeed.json1()
+      setResponseHeader(event, 'Content-Type', 'application/feed+json')
+      return feed.json1()
     default:
-      setResponseStatus(event, 404)
+      setResponseStatus(event, 500)
       return 'Invalid Feed Type'
   }
 })

From 10548978eec22a8a9b2c4491a57086dc0a94220d Mon Sep 17 00:00:00 2001
From: Calum <contact@mineblock11.dev>
Date: Wed, 24 May 2023 21:03:50 +0100
Subject: [PATCH 4/5] Project RSS fixes.

---
 helpers/parse.js                              | 20 +++++++++
 .../routes/feed/[feed_type]/notifications.js  |  5 +++
 .../routes/feed/[feed_type]/project/[id].js   | 41 ++++++++++++++-----
 3 files changed, 55 insertions(+), 11 deletions(-)

diff --git a/helpers/parse.js b/helpers/parse.js
index 24487131e2..e5623a0f04 100644
--- a/helpers/parse.js
+++ b/helpers/parse.js
@@ -124,3 +124,23 @@ export const md = (options = {}) => {
 }
 
 export const renderString = (string) => configuredXss.process(md().render(string))
+
+export const escapeXmlAttr = (unsafe) => {
+  if (!unsafe) {
+    return
+  }
+  return unsafe.replace(/[<>&'"]/g, function (c) {
+    switch (c) {
+      case '<':
+        return '&lt;'
+      case '>':
+        return '&gt;'
+      case '&':
+        return '&amp;'
+      case "'":
+        return '&apos;'
+      case '"':
+        return '&quot;'
+    }
+  })
+}
diff --git a/server/routes/feed/[feed_type]/notifications.js b/server/routes/feed/[feed_type]/notifications.js
index feaec6b0cf..2eb2e27bea 100644
--- a/server/routes/feed/[feed_type]/notifications.js
+++ b/server/routes/feed/[feed_type]/notifications.js
@@ -32,6 +32,11 @@ export default defineEventHandler(async (event) => {
       description: `${userInfo.username} has ${userNotifications.length} notification${
         userNotifications.length === 1 ? '' : 's'
       }`,
+      feedLinks: {
+        json: WEBSITE_URL + '/feed/json/notifications',
+        atom: WEBSITE_URL + '/feed/atom/notifications',
+        rss: WEBSITE_URL + '/feed/rss/notifications',
+      },
     })
 
     userNotifications.forEach((notification) => {
diff --git a/server/routes/feed/[feed_type]/project/[id].js b/server/routes/feed/[feed_type]/project/[id].js
index 1de561d06b..0b78c6a81f 100644
--- a/server/routes/feed/[feed_type]/project/[id].js
+++ b/server/routes/feed/[feed_type]/project/[id].js
@@ -1,5 +1,5 @@
 import { Feed } from 'feed'
-import { renderString } from '~/helpers/parse'
+import { renderString, escapeXmlAttr } from '~/helpers/parse'
 
 export default defineEventHandler(async (event) => {
   const config = useRuntimeConfig()
@@ -18,8 +18,23 @@ export default defineEventHandler(async (event) => {
 
   const feed = new Feed({
     title: projectInformation.title,
-    id: projectInformation.id,
-    description: renderString(projectInformation.description),
+    id: WEBSITE_URL + `/${projectInformation.project_type}/${projectInformation.id}`,
+    description:
+      `${projectInformation.title} is a ${projectInformation.project_type} with ${
+        projectInformation.downloads
+      } download${projectInformation.downloads > 1 ? 's' : ''}` +
+      `${
+        projectInformation.followers > 0
+          ? 'and ' + projectInformation.followers + ' follower' + projectInformation.followers > 1
+            ? 's'
+            : ''
+          : ''
+      } that is available on Modrinth, an open-source platform to host mods, modpacks, shaders, resource packs, plugins and datapacks.`,
+    feedLinks: {
+      json: WEBSITE_URL + `/feed/json/project/${projectInformation.id}`,
+      atom: WEBSITE_URL + `/feed/atom/project/${projectInformation.id}`,
+      rss: WEBSITE_URL + `/feed/rss/project/${projectInformation.id}`,
+    },
     generator: 'Modrinth',
     link: WEBSITE_URL + `/${projectInformation.project_type}/${projectInformation.id}`,
     language: 'en',
@@ -31,17 +46,21 @@ export default defineEventHandler(async (event) => {
   projectVersions.forEach((version) => {
     feed.addItem({
       title: `New Version Released: ${version.name}`,
-      id: `release-${version.id}`,
+      id:
+        WEBSITE_URL +
+        `/${projectInformation.project_type}/${projectInformation.id}/version/${version.id}`,
       link:
         WEBSITE_URL +
         `/${projectInformation.project_type}/${projectInformation.id}/version/${version.id}`,
-      content:
-        `This version is for ${version.game_versions.join(', ')}<br>` +
-        // Check for changelog length being greater than 1 to ensure no blank changelog section.
-        // Legacy changelog support.
-        `<h3>Changelog</h3>${renderString(
-          version.changelog.length > 1 ? version.changelog : 'No changelog was specified.'
-        )}`,
+      content: escapeXmlAttr(
+        `This version is for ${version.loaders.join(
+          ', '
+        )} and works on the following Minecraft versions: ${version.game_versions.join(', ')}<br>` +
+          // Check for changelog length being greater than 1 to ensure no blank changelog section.
+          `<h3>Changelog</h3>${renderString(
+            version.changelog.length > 1 ? version.changelog : 'No changelog was specified.'
+          )}`
+      ),
       author: [
         ...projectTeam.map((member) => {
           return {

From 909d706d2a7cbb88226677bbb1dca3eb25586c96 Mon Sep 17 00:00:00 2001
From: Calum <contact@mineblock11.dev>
Date: Wed, 24 May 2023 21:13:36 +0100
Subject: [PATCH 5/5] Fix notification feed

---
 server/routes/feed/[feed_type]/notifications.js | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/server/routes/feed/[feed_type]/notifications.js b/server/routes/feed/[feed_type]/notifications.js
index 2eb2e27bea..42909f8531 100644
--- a/server/routes/feed/[feed_type]/notifications.js
+++ b/server/routes/feed/[feed_type]/notifications.js
@@ -29,6 +29,7 @@ export default defineEventHandler(async (event) => {
       title: `Notifications for ${userInfo.username}`,
       link: WEBSITE_URL + '/notifications',
       generator: 'Modrinth',
+      id: WEBSITE_URL + '/notifications',
       description: `${userInfo.username} has ${userNotifications.length} notification${
         userNotifications.length === 1 ? '' : 's'
       }`,
@@ -41,11 +42,17 @@ export default defineEventHandler(async (event) => {
 
     userNotifications.forEach((notification) => {
       feed.addItem({
-        title: renderString(notification.title),
+        title: notification.title,
         description: renderString(notification.text),
-        id: notification.id,
+        id: WEBSITE_URL + notification.link,
         link: WEBSITE_URL + notification.link,
         date: new Date(notification.created),
+        author: [
+          {
+            name: userInfo.username,
+            link: WEBSITE_URL + `/user/${userInfo.id}`,
+          },
+        ],
       })
     })
 
@@ -65,8 +72,6 @@ export default defineEventHandler(async (event) => {
     }
   } catch (e) {
     setResponseStatus(event, 401)
-    return (
-      'Please pass a valid authentication token to view your notifications as an RSS feed.\n\n' + e
-    )
+    return 'There was an error generating the feed.\n\n' + e
   }
 })