Log posts changes

Web/Models/Entities/Post.php

@@ -174,6 +174,16 @@ class Post extends Postable
         $this->unwire();
         $this->save();
     }
+
+    function getChangeId(): int
+    {
+        return $this->getRecord()->change_id;
+    }
+
+    function getChangeType(): string
+    {
+        return $this->getRecord()->change_type == 2 ? "new" : "old";
+    }
     
     use Traits\TRichText;
 }

Web/Models/Entities/PostChangeRecord.php

@@ -0,0 +1,71 @@
+<?php declare(strict_types=1);
+namespace openvk\Web\Models\Entities;
+use openvk\Web\Models\RowModel;
+use openvk\Web\Util\DateTime;
+use openvk\Web\Models\Entities\{User, Club, Post};
+use openvk\Web\Models\Repositories\{Users, Clubs, Posts};
+use Nette\Database\Table\ActiveRow;
+use Chandler\Database\DatabaseConnection;
+
+class PostChangeRecord extends RowModel
+{
+    protected $tableName = "posts_changes";
+
+    function getId(): int
+    {
+        return $this->getRecord()->id;
+    }
+
+    function getWid(): int
+    {
+        return $this->getRecord()->wall_id;
+    }
+
+    function getAuthorType(): string
+    {
+        return $this->getWid() < 0 ? "club" : "user";
+    }
+
+    function getVid(): int
+    {
+        return $this->getRecord()->virtual_id;
+    }
+
+    function getPost(): ?Post
+    {
+        return (new Posts)->getPostById($this->getWid(), $this->getVid());
+    }
+
+    function getAuthor()
+    {
+        if ($this->getAuthorType() === "club")
+            return (new Clubs)->get($this->getWid());
+
+        return (new Users)->get($this->getWid());
+    }
+
+    function getOldContent(): ?string
+    {
+        return $this->getRecord()->oldContent;
+    }
+
+    function getNewContent(): ?string
+    {
+        return $this->getRecord()->newContent;
+    }
+
+    function getCreationDate(): DateTime
+    {
+        return new DateTime($this->getRecord()->created);
+    }
+
+    function canBeApplied(string $type): bool
+    {
+        $post = $this->getPost();
+
+        if ($post->getChangeId() == $this->getId())
+            if ($post->getChangeType() == $type) return false;
+
+        return true;
+    }
+}

Web/Models/Repositories/PostsChanges.php

@@ -0,0 +1,45 @@
+<?php declare(strict_types=1);
+namespace openvk\Web\Models\Repositories;
+use openvk\Web\Models\Entities\{Post, User, PostChangeRecord};
+use Nette\Database\Table\ActiveRow;
+use Chandler\Database\DatabaseConnection;
+
+class PostsChanges
+{
+    private $context;
+    private $changes;
+
+    function __construct()
+    {
+        $this->context   = DatabaseConnection::i()->getContext();
+        $this->changes   = $this->context->table("posts_changes");
+    }
+
+    function toChangeRecord(?ActiveRow $ar): ?PostChangeRecord
+    {
+        return is_null($ar) ? NULL : new PostChangeRecord($ar);
+    }
+
+    function get(int $id): ?PostChangeRecord
+    {
+        return $this->toChangeRecord($this->changes->get($id));
+    }
+
+    function getListByWid(int $wid): \Traversable
+    {
+        foreach ($this->changes->where("wall_id", $wid)->fetch() as $record)
+            yield new PostChangeRecord($record);
+    }
+
+    function getAllHistoryById(int $wid, int $vid): \Traversable
+    {
+        foreach($this->changes->where(["wall_id" => $wid, "virtual_id" => $vid]) as $record)
+            yield new PostChangeRecord($record);
+    }
+
+    function getHistoryById(int $wid, int $vid, int $page = 1): \Traversable
+    {
+        foreach($this->changes->where(["wall_id" => $wid, "virtual_id" => $vid])->page($page, 5) as $record)
+            yield new PostChangeRecord($record);
+    }
+}

Web/Presenters/WallPresenter.php

@@ -1,8 +1,8 @@
 <?php declare(strict_types=1);
 namespace openvk\Web\Presenters;
-use openvk\Web\Models\Entities\{Post, Photo, Video, Club, User};
+use openvk\Web\Models\Entities\{Post, Photo, Video, Club, User, PostChangeRecord};
 use openvk\Web\Models\Entities\Notifications\{RepostNotification, WallPostNotification};
-use openvk\Web\Models\Repositories\{Posts, Users, Clubs, Albums};
+use openvk\Web\Models\Repositories\{Posts, Users, Clubs, Albums, PostsChanges};
 use Chandler\Database\DatabaseConnection;
 use Nette\InvalidStateException as ISE;
 use Bhaktaraz\RSSGenerator\Item;
@@ -12,10 +12,12 @@ use Bhaktaraz\RSSGenerator\Channel;
 final class WallPresenter extends OpenVKPresenter
 {
     private $posts;
+    private $changes;
     
-    function __construct(Posts $posts)
+    function __construct(Posts $posts, PostsChanges $changes)
     {
         $this->posts = $posts;
+        $this->changes = $changes;
         
         parent::__construct();
     }
@@ -274,10 +276,24 @@ final class WallPresenter extends OpenVKPresenter
         try {
             if ($editTarget) {
                 $post = $this->posts->getPostById($this->user->id, $editTarget);
+
+                $changes_record = new PostChangeRecord;
+
+                if (OPENVK_ROOT_CONF["openvk"]["preferences"]["wall"]["logChanges"]) {
+                    $changes_record->setWall_id($wall);
+                    $changes_record->setVirtual_id($editTarget);
+                    $changes_record->setOldContent($post->getText());
+                    $changes_record->setNewContent($this->postParam("text"));
+                    $changes_record->setCreated(time());
+                    $changes_record->save();
+                }
+
                 $post->setEdited(time());
                 $post->setContent($this->postParam("text"));
                 $post->setFlags($flags);
                 $post->setNsfw($this->postParam("nsfw") === "on");
+                $post->setChange_id($changes_record->getId());
+                $post->setChange_type(2);
                 $post->save();
             } else {
                 $post = new Post;
@@ -419,4 +435,56 @@ final class WallPresenter extends OpenVKPresenter
         # TODO localize message based on language and ?act=(un)pin
         $this->flashFail("succ", tr("information_-1"), tr("changes_saved_comment"));
     }
+
+    function renderPostHistory(int $wall, int $post_id): void
+    {
+        $this->assertUserLoggedIn();
+
+        if(!$this->user->identity->getChandlerUser()->can("access")->model("admin")->whichBelongsTo(NULL))
+            $this->flashFail("err", tr("error"), tr("forbidden"));
+
+        $post = $this->posts->getPostById($wall, $post_id);
+
+        if (!$post) $this->notFound();
+
+        $this->template->post = $post;
+
+        if ($post->getTargetWall() > 0) {
+            $this->template->wallOwner = (new Users)->get($post->getTargetWall());
+            $this->template->isWallOfGroup = false;
+            if($this->template->wallOwner->isBanned())
+                $this->flashFail("err", tr("error"), tr("forbidden"));
+        } else {
+            $this->template->wallOwner = (new Clubs)->get(abs($post->getTargetWall()));
+            $this->template->isWallOfGroup = true;
+        }
+
+        $this->template->cPage    = (int) ($_GET["p"] ?? 1);
+        $this->template->cCount   = sizeof(iterator_to_array($this->changes->getAllHistoryById($wall, $post_id)));
+        $this->template->changes  = iterator_to_array($this->changes->getHistoryById($wall, $post_id, $this->template->cPage));
+        $this->template->cAmount  = sizeof($this->template->changes);
+    }
+
+    function renderPostHistoryRestore(int $wall, int $post_id, int $change_id, string $type): void
+    {
+        $this->assertUserLoggedIn();
+
+        if(!$this->user->identity->getChandlerUser()->can("access")->model("admin")->whichBelongsTo(NULL))
+            $this->flashFail("err", tr("error"), tr("forbidden"));
+
+        $post = $this->posts->getPostById($wall, $post_id);
+        $change = $this->changes->get($change_id);
+
+        if ($type == "old")
+            $post->setContent($change->getOldContent());
+        else
+            $post->setContent($change->getNewContent());
+
+        $post->setChange_Id($change->getId());
+        $post->setChange_Type($type == "new" ? 2 : 1);
+
+        $post->save();
+
+        $this->flashFail("succ", "Успех", "Версия #$change_id применена.");
+    }
 }

Web/Presenters/templates/Wall/Post.xml

@@ -31,5 +31,13 @@
         {/if}
         
         <a n:if="$canDelete ?? false" class="profile_link" style="display:block;width:96%;" href="/wall{$post->getPrettyId()}/delete">{_delete}</a>
+        <a
+            n:if="$thisUser->getChandlerUser()->can('access')->model('admin')->whichBelongsTo(NULL) AND $post->getEditTime() AND OPENVK_ROOT_CONF['openvk']['preferences']['wall']['logChanges']"
+            style="display:block;width:96%;"
+            class="profile_link"
+            href="/wall{$post->getPrettyId()}/history"
+        >
+            История изменений
+        </a>
     </div>
 {/block}

Web/Presenters/templates/Wall/PostHistory.xml

@@ -0,0 +1,35 @@
+{extends "../@layout.xml"}
+{block title}{_post}{/block}
+
+{block header}
+	<a href="{$wallOwner->getURL()}">
+		{$wallOwner->getCanonicalName()}
+	</a>
+	»
+	<a href="/wall{$wallOwner->getId() * ($isWallOfGroup ? -1 : 1)}">
+		{_wall}
+	</a>
+	»
+	{_post}
+{/block}
+
+{block content}
+    {include "../components/post.xml", post => $post, forceNoCommentsLink => TRUE, forceNoDeleteLink => TRUE}
+    <hr/>
+    <div style="float: left; min-height: 100px; width: 68%;">
+        {include "../components/postChanges.xml",
+                 changes => $changes,
+                 count => $cCount,
+                 page => $cPage,
+                 model => "posts",
+                 parent => $post }
+    </div>
+    <div style="float: left; min-height: 100px; width: 32%;">
+        <h4>{_actions}</h4>
+        {if isset($thisUser)}
+            {var $canDelete = $post->canBeDeletedBy($thisUser)}
+        {/if}
+        
+        <a n:if="$canDelete ?? false" class="profile_link" style="display:block;width:96%;" href="/wall{$post->getPrettyId()}/delete">{_delete}</a>
+    </div>
+{/block}

Web/Presenters/templates/components/postChange.xml

@@ -0,0 +1,41 @@
+{var $author = $change->getAuthor()}
+
+<table border="0" style="font-size: 11px;">
+    <tbody>
+        <tr>
+            <td width="54" valign="top">
+                <a href="{$author->getURL()}">
+                    <img src="{$author->getAvatarURL('miniscule')}" width="50" />
+                    <span n:if="!$post->isPostedOnBehalfOfGroup() && !($compact ?? false) && $author->isOnline()" class="post-online">{_online}</span>
+                </a>
+            </td>
+            <td width="100%" valign="top">
+                <div class="post-author">
+                    <a href="{$author->getURL()}"><b>
+                        {$author->getCanonicalName()}
+                    </b></a>
+                    <img n:if="$author->isVerified()" class="name-checkmark" src="/assets/packages/static/openvk/img/checkmark.png"><br/>
+                </div>
+                <div class="post-content" id="{$change->getId()}">
+                    <div class="text" id="text{$change->getId()}">
+                        {$change->getOldContent()|noescape}
+                        <a n:if="$change->canBeApplied('old')" href="/wall{$post->getPrettyId()}/history/restore{$change->getId()}/old">
+                            &nbsp;|&nbsp; Применить
+                        </a>
+                        <span class="nobold" n:if="$post->getChangeId() == $change->getId() AND $post->getChangeType() == 'old'">
+                            &nbsp;|&nbsp; Текущая версия
+                        </span>
+                        <hr size="1" color="#ddd">
+                        {$change->getNewContent()|noescape}
+                        <a n:if="$change->canBeApplied('new')" href="/wall{$post->getPrettyId()}/history/restore{$change->getId()}/new">
+                            &nbsp;|&nbsp; Применить
+                        </a>
+                        <span class="nobold" n:if="$post->getChangeId() == $change->getId() AND $post->getChangeType() == 'new'">
+                            &nbsp;|&nbsp; Текущая версия
+                        </span>
+                    </div>
+                </div>
+            </td>
+        </tr>
+    </tbody>
+</table>

Web/Presenters/templates/components/postChanges.xml

@@ -0,0 +1,12 @@
+<h4 n:if="$showTitle ?? true">История ({$cAmount})</h4>
+
+{if $cCount > 0}
+    {foreach $changes as $change}
+        {include "postChange.xml", change => $change, post => $post}
+    {/foreach}
+    <div style="margin-top: 11px;">
+        {include "paginator.xml", conf => (object) ["page" => $cPage, "count" => $cCount, "amount" => $cAmount, "perPage" => 5]}
+    </div>
+{else}
+    Ничего не найдено.
+{/if}

Web/di.yml

@@ -42,3 +42,4 @@ services:
     - openvk\Web\Models\Repositories\Topics
     - openvk\Web\Models\Repositories\Applications
     - openvk\Web\Models\Repositories\ContentSearchRepository
+    - openvk\Web\Models\Repositories\PostsChanges

Web/routes.yml

@@ -131,6 +131,10 @@ routes:
       handler: "Wall->delete"
     - url: "/wall{num}_{num}/pin"
       handler: "Wall->pin"
+    - url: "/wall{num}_{num}/history"
+      handler: "Wall->postHistory"
+    - url: "/wall{num}_{num}/history/restore{num}/{text}"
+      handler: "Wall->postHistoryRestore"
     - url: "/blob_{text}/{?path}.{text}"
       handler: "Blob->file"
       placeholders:

install/sqls/00031-posts-edit.sql

@@ -0,0 +1,15 @@
+CREATE TABLE `posts_changes` (
+    `id` bigint NOT NULL,
+    `wall_id` bigint NOT NULL,
+    `virtual_id` bigint NOT NULL,
+    `oldContent` longtext NOT NULL,
+    `newContent` longtext NOT NULL,
+    `created` bigint NOT NULL
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci;
+
+ALTER TABLE `posts_changes`
+    ADD PRIMARY KEY (`id`);
+
+ALTER TABLE `posts_changes`
+    MODIFY `id` bigint NOT NULL AUTO_INCREMENT;
+COMMIT;

openvk-example.yml

@@ -54,6 +54,7 @@ openvk:
                 maxSize: 60000
                 processingLimit: 3000
                 emojiProcessingLimit: 1000
+            logChanges: true
         commerce: false
         ton:
             enabled: false