.github/ISSUE_TEMPLATE.md

@@ -1 +0,0 @@
-<!-- Blank templates are for use by maintainers only! If you aren't a maintainer, please go back and pick one of the issue templates. -->

.github/ISSUE_TEMPLATE/1_bug_report.yml

@@ -1,72 +0,0 @@
-name: 🪳 Bug Report
-description: Tell us if something isn't working the way it's supposed to
-
-body:
-  - type: markdown
-    attributes:
-      value: |
-        We strongly encourage you to [submit a pull request](https://docs.silverstripe.org/en/contributing/code/) which fixes the issue.
-        Bug reports which are accompanied with a pull request are a lot more likely to be resolved quickly.
-  - type: input
-    id: affected-versions
-    attributes:
-      label: Module version(s) affected
-      description: |
-        What version of _this module_ have you reproduced this bug on?
-        Run `composer info` to see the specific version of each module installed in your project.
-        If you don't have access to that, check inside the help menu in the bottom left of the CMS.
-      placeholder: x.y.z
-    validations:
-      required: true
-  - type: textarea
-    id: description
-    attributes:
-      label: Description
-      description: A clear and concise description of the problem
-    validations:
-      required: true
-  - type: textarea
-    id: how-to-reproduce
-    attributes:
-      label: How to reproduce
-      description: |
-        ⚠️ This is the most important part of the report ⚠️
-        Without a way to easily reproduce your issue, there is little chance we will be able to help you and work on a fix.
-        - Please, take the time to show us some code and/or configuration that is needed for others to reproduce the problem easily.
-        - If the bug is too complex to reproduce with some short code samples, please reproduce it in a public repository and provide a link to the repository along with steps for setting up and reproducing the bug using that repository.
-        - If part of the bug includes an error or exception, please provide a full stack trace.
-        - If any user interaction is required to reproduce the bug, please add an ordered list of steps that are required to reproduce it.
-        - Be as clear as you can, but don't miss any steps out. Simply saying "create a page" is less useful than guiding us through the steps you're taking to create a page, for example.
-      placeholder: |
-
-        #### Code sample
-        ```php
-
-        ```
-
-        #### Reproduction steps
-        1.
-    validations:
-      required: true
-  - type: textarea
-    id: possible-solution
-    attributes:
-      label: Possible Solution
-      description: |
-        *Optional: only if you have suggestions on a fix/reason for the bug*
-        Please consider [submitting a pull request](https://docs.silverstripe.org/en/contributing/code/) with your solution! It helps get faster feedback and greatly increases the chance of the bug being fixed.
-  - type: textarea
-    id: additional-context
-    attributes:
-      label: Additional Context
-      description: "*Optional: any other context about the problem: log messages, screenshots, etc.*"
-  - type: checkboxes
-    id: validations
-    attributes:
-      label: Validations
-      description: "Before submitting the issue, please make sure you do the following:"
-      options:
-        - label: Check that there isn't already an issue that reports the same bug
-          required: true
-        - label: Double check that your reproduction steps work in a fresh installation of [`silverstripe/installer`](https://github.com/silverstripe/silverstripe-installer) (with any code examples you've provided)
-          required: true

.github/ISSUE_TEMPLATE/2_feature_request.yml

@@ -1,35 +0,0 @@
-name: 🚀 Feature Request
-description: Submit a feature request (but only if you're planning on implementing it)
-body:
-  - type: markdown
-    attributes:
-      value: |
-        Please only submit feature requests if you plan on implementing the feature yourself.
-        See the [contributing code documentation](https://docs.silverstripe.org/en/contributing/code/#make-or-find-a-github-issue) for more guidelines about submitting feature requests.
-  - type: textarea
-    id: description
-    attributes:
-      label: Description
-      description: A clear and concise description of the new feature, and why it belongs in core
-    validations:
-      required: true
-  - type: textarea
-    id: more-info
-    attributes:
-      label: Additional context or points of discussion
-      description: |
-        *Optional: Any additional context, points of discussion, etc that might help validate and refine your idea*
-  - type: checkboxes
-    id: validations
-    attributes:
-      label: Validations
-      description: "Before submitting the issue, please confirm the following:"
-      options:
-        - label: You intend to implement the feature yourself
-          required: true
-        - label: You have read the [contributing guide](https://docs.silverstripe.org/en/contributing/code/)
-          required: true
-        - label: You strongly believe this feature should be in core, rather than being its own community module
-          required: true
-        - label: You have checked for existing issues or pull requests related to this feature (and didn't find any)
-          required: true

.github/ISSUE_TEMPLATE/config.yml

@@ -1,8 +0,0 @@
-blank_issues_enabled: true
-contact_links:
-  - name: Security Vulnerability
-    url: https://docs.silverstripe.org/en/contributing/issues_and_bugs/#reporting-security-issues
-    about: ⚠️ We do not use GitHub issues to track security vulnerability reports. Click "open" on the right to see how to report security vulnerabilities.
-  - name: Support Question
-    url: https://www.silverstripe.org/community/
-    about: We use GitHub issues only to discuss bugs and new features. For support questions, please use one of the support options available in our community channels.

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,39 +0,0 @@
-<!--
-  Thanks for contributing, you're awesome! ⭐
-
-  Please read https://docs.silverstripe.org/en/contributing/code/ if you haven't contributed to this project recently.
--->
-## Description
-<!--
-  Please describe expected and observed behaviour, and what you're fixing.
-  For visual fixes, please include tested browsers and screenshots.
--->
-
-## Manual testing steps
-<!--
-  Include any manual testing steps here which a reviewer can perform to validate your pull request works correctly.
-  Note that this DOES NOT replace unit or end-to-end tests.
--->
-
-## Issues
-<!--
-  List all issues here that this pull request fixes/resolves.
-  If there is no issue already, create a new one! You must link your pull request to at least one issue.
--->
-- #
-
-## Pull request checklist
-<!--
-  PLEASE check each of these to ensure you have done everything you need to do!
-  If there's something in this list you need help with, please ask so that we can assist you.
--->
-- [ ] The target branch is correct
-    - See [picking the right version](https://docs.silverstripe.org/en/contributing/code/#picking-the-right-version)
-- [ ] All commits are relevant to the purpose of the PR (e.g. no debug statements, unrelated refactoring, or arbitrary linting)
-    - Small amounts of additional linting are usually okay, but if it makes it hard to concentrate on the relevant changes, ask for the unrelated changes to be reverted, and submitted as a separate PR.
-- [ ] The commit messages follow our [commit message guidelines](https://docs.silverstripe.org/en/contributing/code/#commit-messages)
-- [ ] The PR follows our [contribution guidelines](https://docs.silverstripe.org/en/contributing/code/)
-- [ ] Code changes follow our [coding conventions](https://docs.silverstripe.org/en/contributing/coding_conventions/)
-- [ ] This change is covered with tests (or tests aren't necessary for this change)
-- [ ] Any relevant User Help/Developer documentation is updated; for impactful changes, information is added to the changelog for the intended release
-- [ ] CI is green

.github/workflows/keepalive.yml

@@ -1,10 +1,10 @@
 name: Keepalive
 
 on:
-  # At 9:45 PM UTC, on day 18 of the month
-  schedule:
-    - cron: '45 21 18 * *'
   workflow_dispatch:
+  # The 8th of every month at 11:50am UTC
+  schedule:
+    - cron: '50 11 8 * *'
 
 jobs:
   keepalive:

.github/workflows/merge-up.yml

@@ -1,17 +0,0 @@
-name: Merge-up
-
-on:
-  # At 11:10 AM UTC, only on Thursday
-  schedule:
-    - cron: '10 11 * * 4'
-  workflow_dispatch:
-
-jobs:
-  merge-up:
-    name: Merge-up
-    # Only run cron on the silverstripe account
-    if: (github.event_name == 'schedule' && github.repository_owner == 'silverstripe') || (github.event_name != 'schedule')
-    runs-on: ubuntu-latest
-    steps:
-      - name: Merge-up
-        uses: silverstripe/gha-merge-up@v1

.upgrade.yml

@@ -0,0 +1,12 @@
+mappings:
+  VersionFeed: SilverStripe\VersionFeed\VersionFeed
+  VersionFeed_Controller: SilverStripe\VersionFeed\VersionFeedController
+  VersionFeedSiteConfig: SilverStripe\VersionFeed\VersionFeedSiteConfig
+  CachedContentFilter: SilverStripe\VersionFeed\Filters\CachedContentFilter
+  ContentFilter: SilverStripe\VersionFeed\Filters\ContentFilter
+  RateLimitFilter: SilverStripe\VersionFeed\Filters\RateLimitFilter
+  \VersionFeed\Filters\CachedContentFilter: SilverStripe\VersionFeed\Filters\CachedContentFilter
+  \VersionFeed\Filters\ContentFilter: SilverStripe\VersionFeed\Filters\ContentFilter
+  \VersionFeed\Filters\RateLimitFilter: SilverStripe\VersionFeed\Filters\RateLimitFilter
+  VersionFeedFunctionalTest: SilverStripe\VersionFeed\Tests\VersionFeedFunctionalTest
+  VersionFeedTest: SilverStripe\VersionFeed\Tests\VersionFeedTest

README.md

@@ -7,11 +7,15 @@
 
 The module creates an RSS feed on each page with their change history, as well as one for the entire site.
 
+## Requirements
+
+ * Silverstripe ^4
+
+**Note:** For a Silverstripe 3.x compatible version, please use [the 1.x release line](https://github.com/silverstripe/silverstripe-versionfeed/tree/1.2).
+
 ## Installation
 
-```sh
-composer require silverstripe/versionfeed
-```
+Install with composer by running `composer require silverstripe/versionfeed` in the root of your Silverstripe project.
 
 ## Usage
 

composer.json

@@ -16,16 +16,14 @@
         }
     ],
     "require": {
-        "php": "^8.1",
-        "silverstripe/cms": "^5",
-        "silverstripe/versioned": "^2",
-        "silverstripe/siteconfig": "^5"
+        "php": "^7.4 || ^8.0",
+        "silverstripe/cms": "^4",
+        "silverstripe/versioned": "^1",
+        "silverstripe/siteconfig": "^4"
     },
     "require-dev": {
-        "phpunit/phpunit": "^9.6",
-        "squizlabs/php_codesniffer": "^3",
-        "silverstripe/standards": "^1",
-        "phpstan/extension-installer": "^1.3"
+        "phpunit/phpunit": "^9.5",
+        "squizlabs/php_codesniffer": "^3.0"
     },
     "autoload": {
         "psr-4": {
@@ -35,4 +33,4 @@
     },
     "minimum-stability": "dev",
     "prefer-stable": true
-}
+}

license.md

@@ -1,4 +1,4 @@
-Copyright (c) 2017, Silverstripe Limited
+Copyright (c) 2017, SilverStripe Limited
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

phpstan.neon.dist

@@ -1,3 +0,0 @@
-parameters:
-  paths:
-    - src

src/VersionFeed.php

@@ -2,6 +2,7 @@
 
 namespace SilverStripe\VersionFeed;
 
+use SilverStripe\Dev\Deprecation;
 use SilverStripe\CMS\Model\SiteTreeExtension;
 use SilverStripe\Core\Config\Config;
 use SilverStripe\Forms\CheckboxField;
@@ -11,15 +12,12 @@ use SilverStripe\ORM\ArrayList;
 use SilverStripe\ORM\DataObject;
 use SilverStripe\ORM\FieldType\DBField;
 use SilverStripe\SiteConfig\SiteConfig;
-use SilverStripe\View\Parsers\HtmlDiff;
+use SilverStripe\View\Parsers\Diff;
 use SilverStripe\CMS\Model\SiteTree;
-use SilverStripe\Versioned\Versioned_Version;
 
-/**
- * @extends Extension<SiteTree&static>
- */
 class VersionFeed extends SiteTreeExtension
 {
+    
     private static $db = array(
         'PublicHistory' => 'Boolean(true)'
     );
@@ -71,7 +69,7 @@ class VersionFeed extends SiteTreeExtension
      * @param int $highestVersion Top version number to consider.
      * @param int $limit Limit to the amount of items returned.
      *
-     * @return ArrayList<Versioned_Version> List of cleaned records.
+     * @returns ArrayList List of cleaned records.
      */
     public function getDiffList($highestVersion = null, $limit = 100)
     {
@@ -82,7 +80,7 @@ class VersionFeed extends SiteTreeExtension
         $qLimit = (int)$limit + 1;
         $versions = $this->owner->Versions(
             "\"WasPublished\"='1' AND \"CanViewType\" IN ('Anyone', 'Inherit') $offset",
-            "\"LastEdited\" DESC, \"ID\" DESC",
+            "\"SiteTree\".\"LastEdited\" DESC, \"SiteTree\".\"ID\" DESC",
             $qLimit
         );
 
@@ -97,7 +95,7 @@ class VersionFeed extends SiteTreeExtension
             if (isset($previous)) {
                 // Produce the diff fields for use in the template.
                 if ($version->Title != $previous->Title) {
-                    $diffTitle = HtmlDiff::compareHTML($version->Title ?? '', $previous->Title ?? '');
+                    $diffTitle = Diff::compareHTML($version->Title, $previous->Title);
 
                     $version->DiffTitle = DBField::create_field('HTMLText', null);
                     $version->DiffTitle->setValue(
@@ -110,7 +108,7 @@ class VersionFeed extends SiteTreeExtension
                 }
 
                 if ($version->Content != $previous->Content) {
-                    $diffContent = HtmlDiff::compareHTML($version->Content ?? '', $previous->Content ?? '');
+                    $diffContent = Diff::compareHTML($version->Content, $previous->Content);
 
                     $version->DiffContent = DBField::create_field('HTMLText', null);
                     $version->DiffContent->setValue('<div>'.$diffContent.'</div>');
@@ -159,7 +157,7 @@ class VersionFeed extends SiteTreeExtension
      * Return a single diff representing this version.
      * Returns the initial version if there is nothing to compare to.
      *
-     * @return Versioned_Version|null Object with relevant fields diffed.
+     * @return DataObject|null Object with relevant fields diffed.
      */
     public function getDiff()
     {
@@ -171,12 +169,32 @@ class VersionFeed extends SiteTreeExtension
         return null;
     }
 
+    /**
+     * Compile a list of changes to the current page, excluding non-published and explicitly secured versions.
+     *
+     * @deprecated 2.0.0 Use VersionFeed::getDiffList() instead
+     *
+     * @param int $highestVersion Top version number to consider.
+     * @param boolean $fullHistory Set to true to get the full change history, set to false for a single diff.
+     * @param int $limit Limit to the amount of items returned.
+     *
+     * @returns ArrayList List of cleaned records.
+     */
+    public function getDiffedChanges($highestVersion = null, $fullHistory = true, $limit = 100)
+    {
+        Deprecation::notice('2.0.0', 'Use VersionFeed::getDiffList() instead');
+        return $this->getDiffList(
+            $highestVersion,
+            $fullHistory ? $limit : 1
+        );
+    }
+
     public function updateSettingsFields(FieldList $fields)
     {
         if (!$this->owner->config()->get('changes_enabled')) {
             return;
         }
-
+        
         // Add public history field.
         $fields->addFieldToTab(
             'Root.Settings',
@@ -206,6 +224,7 @@ class VersionFeed extends SiteTreeExtension
 
     public function getSiteRSSLink()
     {
+        // TODO: This link should be from the homepage, not this page.
         if (Config::inst()->get(get_class(), 'allchanges_enabled')
             && SiteConfig::current_site_config()->AllChangesEnabled
         ) {

src/VersionFeedController.php

@@ -11,29 +11,25 @@ use SilverStripe\ORM\DB;
 use SilverStripe\Security\Member;
 use SilverStripe\ORM\ArrayList;
 use SilverStripe\CMS\Model\SiteTree;
-use SilverStripe\Control\Controller;
 use SilverStripe\Core\Convert;
 use SilverStripe\View\Requirements;
 use SilverStripe\Core\Extension;
 use SilverStripe\VersionFeed\Filters\ContentFilter;
 
-/**
- * @extends Extension<Controller&static>
- */
 class VersionFeedController extends Extension
 {
     private static $allowed_actions = array(
         'changes',
         'allchanges'
     );
-
+    
     /**
      * Content handler
      *
      * @var ContentFilter
      */
     protected $contentFilter;
-
+    
     /**
      * Sets the content filter
      *
@@ -43,7 +39,7 @@ class VersionFeedController extends Extension
     {
         $this->contentFilter = $contentFilter;
     }
-
+    
     /**
      * Evaluates the result of the given callback
      *
@@ -118,6 +114,7 @@ class VersionFeedController extends Extension
 			AND ("PublicHistory" IS NULL OR "PublicHistory" = \'1\')
 			ORDER BY "LastEdited" DESC LIMIT ' . $limit);
         $lastChange = $latestChanges->record();
+        $latestChanges->rewind();
 
         if ($lastChange) {
             // Cache the diffs to remove DOS possibility.
@@ -167,7 +164,7 @@ class VersionFeedController extends Extension
         $rss->setTemplate('Page_allchanges_rss');
         return $rss->outputToBrowser();
     }
-
+    
     /**
      * Generates and embeds the RSS header link for the page-specific version rss feed
      */
@@ -176,7 +173,7 @@ class VersionFeedController extends Extension
         if (!Config::inst()->get(VersionFeed::class, 'changes_enabled') || !$this->owner->PublicHistory) {
             return;
         }
-
+        
         RSSFeed::linkToFeed(
             $this->owner->Link('changes'),
             _t(
@@ -198,7 +195,7 @@ class VersionFeedController extends Extension
         ) {
             return;
         }
-
+        
         // RSS feed to all-site changes.
         $title = Convert::raw2xml($this->linkToAllSitesRSSFeedTitle());
         $url = $this->owner->getSiteRSSLink();

src/VersionFeedSiteConfig.php

@@ -7,15 +7,13 @@ use SilverStripe\Forms\CheckboxField;
 use SilverStripe\Forms\FieldGroup;
 use SilverStripe\Forms\FieldList;
 use SilverStripe\ORM\DataExtension;
-use SilverStripe\SiteConfig\SiteConfig;
 
 /**
  * Allows global configuration of all changes
- *
- * @extends DataExtension<SiteConfig>
  */
 class VersionFeedSiteConfig extends DataExtension
 {
+    
     private static $db = array(
         'AllChangesEnabled' => 'Boolean(true)'
     );
@@ -28,7 +26,7 @@ class VersionFeedSiteConfig extends DataExtension
     {
         $labels['AllChangesEnabled'] = _t(__CLASS__ . '.ALLCHANGESLABEL', 'Make global changes feed public');
     }
-
+    
     public function updateCMSFields(FieldList $fields)
     {
         if (!Config::inst()->get(VersionFeed::class, 'allchanges_enabled')) {

tests/VersionFeedFunctionalTest.php

@@ -175,7 +175,7 @@ class VersionFeedFunctionalTest extends FunctionalTest
         $titles = array_map(function ($item) {
             return (string)$item->title;
         }, $xml->xpath('//item') ?? []);
-
+        // TODO Unclear if this should contain the original version
         $this->assertContains('Changed: Page1', $titles);
         $this->assertNotContains('Changed: Page2', $titles);
 
@@ -184,7 +184,7 @@ class VersionFeedFunctionalTest extends FunctionalTest
         $titles = array_map(function ($item) {
             return (string)$item->title;
         }, $xml->xpath('//item') ?? []);
-
+        // TODO Unclear if this should contain the original version
         $this->assertNotContains('Changed: Page1', $titles);
         $this->assertContains('Changed: Page2', $titles);
     }