Added 'Sort Book' action to chapters

[bookstack] / tests / Entity / PageContentTest.php

diff --git a/tests/Entity/PageContentTest.php b/tests/Entity/PageContentTest.php
index 6d5200794bc79354bd8243d80711867323f9f0c6..d433c8b8805c68df652b691d6332c099fb447214 100644 (file)
--- a/tests/Entity/PageContentTest.php
+++ b/tests/Entity/PageContentTest.php
@@ -1,16 +1,22 @@
-<?php namespace Tests\Entity;
+<?php
+
+namespace Tests\Entity;

 
 

-use BookStack\Entities\Tools\PageContent;

 use BookStack\Entities\Models\Page;
 use BookStack\Entities\Models\Page;

+use BookStack\Entities\Tools\PageContent;

 use Tests\TestCase;
 use Tests\TestCase;

+use Tests\Uploads\UsesImages;

 
 class PageContentTest extends TestCase
 {
 
 class PageContentTest extends TestCase
 {

+    use UsesImages;
+
+    protected $base64Jpeg = '/9j/2wBDAAMCAgICAgMCAgIDAwMDBAYEBAQEBAgGBgUGCQgKCgkICQkKDA8MCgsOCwkJDRENDg8QEBEQCgwSExIQEw8QEBD/yQALCAABAAEBAREA/8wABgAQEAX/2gAIAQEAAD8A0s8g/9k=';

 
     public function test_page_includes()
     {
 
     public function test_page_includes()
     {

-        $page = Page::first();
-        $secondPage = Page::where('id', '!=', $page->id)->first();
+        $page = Page::query()->first();
+        $secondPage = Page::query()->where('id', '!=', $page->id)->first();

 
         $secondPage->html = "<p id='section1'>Hello, This is a test</p><p id='section2'>This is a second block of content</p>";
         $secondPage->save();
 
         $secondPage->html = "<p id='section1'>Hello, This is a test</p><p id='section2'>This is a second block of content</p>";
         $secondPage->save();


@@ -38,8 +44,8 @@ class PageContentTest extends TestCase
 
     public function test_saving_page_with_includes()
     {
 
     public function test_saving_page_with_includes()
     {

-        $page = Page::first();
-        $secondPage = Page::where('id', '!=', $page->id)->first();
+        $page = Page::query()->first();
+        $secondPage = Page::query()->where('id', '!=', $page->id)->first();

 
         $this->asEditor();
         $includeTag = '{{@' . $secondPage->id . '}}';
 
         $this->asEditor();
         $includeTag = '{{@' . $secondPage->id . '}}';


@@ -56,8 +62,10 @@ class PageContentTest extends TestCase
 
     public function test_page_includes_do_not_break_tables()
     {
 
     public function test_page_includes_do_not_break_tables()
     {

-        $page = Page::first();
-        $secondPage = Page::where('id', '!=', $page->id)->first();
+        /** @var Page $page */
+        $page = Page::query()->first();
+        /** @var Page $secondPage */
+        $secondPage = Page::query()->where('id', '!=', $page->id)->first();

 
         $content = '<table id="table"><tbody><tr><td>test</td></tr></tbody></table>';
         $secondPage->html = $content;
 
         $content = '<table id="table"><tbody><tr><td>test</td></tr></tbody></table>';
         $secondPage->html = $content;


@@ -66,9 +74,26 @@ class PageContentTest extends TestCase
         $page->html = "{{@{$secondPage->id}#table}}";
         $page->save();
 
         $page->html = "{{@{$secondPage->id}#table}}";
         $page->save();
 

-        $this->asEditor();
-        $pageResp = $this->get($page->getUrl());
-        $pageResp->assertSee($content);
+        $pageResp = $this->asEditor()->get($page->getUrl());
+        $pageResp->assertSee($content, false);
+    }
+
+    public function test_page_includes_do_not_break_code()
+    {
+        /** @var Page $page */
+        $page = Page::query()->first();
+        /** @var Page $secondPage */
+        $secondPage = Page::query()->where('id', '!=', $page->id)->first();
+
+        $content = '<pre id="bkmrk-code"><code>var cat = null;</code></pre>';
+        $secondPage->html = $content;
+        $secondPage->save();
+
+        $page->html = "{{@{$secondPage->id}#bkmrk-code}}";
+        $page->save();
+
+        $pageResp = $this->asEditor()->get($page->getUrl());
+        $pageResp->assertSee($content, false);

     }
 
     public function test_page_includes_rendered_on_book_export()
     }
 
     public function test_page_includes_rendered_on_book_export()


@@ -93,14 +118,14 @@ class PageContentTest extends TestCase
     public function test_page_content_scripts_removed_by_default()
     {
         $this->asEditor();
     public function test_page_content_scripts_removed_by_default()
     {
         $this->asEditor();

-        $page = Page::first();
+        $page = Page::query()->first();

         $script = 'abc123<script>console.log("hello-test")</script>abc123';
         $page->html = "escape {$script}";
         $page->save();
 
         $pageView = $this->get($page->getUrl());
         $pageView->assertStatus(200);
         $script = 'abc123<script>console.log("hello-test")</script>abc123';
         $page->html = "escape {$script}";
         $page->save();
 
         $pageView = $this->get($page->getUrl());
         $pageView->assertStatus(200);

-        $pageView->assertDontSee($script);
+        $pageView->assertDontSee($script, false);

         $pageView->assertSee('abc123abc123');
     }
 
         $pageView->assertSee('abc123abc123');
     }
 


@@ -116,7 +141,7 @@ class PageContentTest extends TestCase
         ];
 
         $this->asEditor();
         ];
 
         $this->asEditor();

-        $page = Page::first();
+        $page = Page::query()->first();

 
         foreach ($checks as $check) {
             $page->html = $check;
 
         foreach ($checks as $check) {
             $page->html = $check;


@@ -124,24 +149,35 @@ class PageContentTest extends TestCase
 
             $pageView = $this->get($page->getUrl());
             $pageView->assertStatus(200);
 
             $pageView = $this->get($page->getUrl());
             $pageView->assertStatus(200);

-            $pageView->assertElementNotContains('.page-content', '<script>');
-            $pageView->assertElementNotContains('.page-content', '</script>');
+            $this->withHtml($pageView)->assertElementNotContains('.page-content', '<script>');
+            $this->withHtml($pageView)->assertElementNotContains('.page-content', '</script>');

         }
         }

-

     }
 
     }
 

-    public function test_iframe_js_and_base64_urls_are_removed()
+    public function test_js_and_base64_src_urls_are_removed()

     {
         $checks = [
             '<iframe src="javascript:alert(document.cookie)"></iframe>',
     {
         $checks = [
             '<iframe src="javascript:alert(document.cookie)"></iframe>',

+            '<iframe src="JavAScRipT:alert(document.cookie)"></iframe>',
+            '<iframe src="JavAScRipT:alert(document.cookie)"></iframe>',

             '<iframe SRC=" javascript: alert(document.cookie)"></iframe>',
             '<iframe src="data:text/html;base64,PHNjcmlwdD5hbGVydCgnaGVsbG8nKTwvc2NyaXB0Pg==" frameborder="0"></iframe>',
             '<iframe SRC=" javascript: alert(document.cookie)"></iframe>',
             '<iframe src="data:text/html;base64,PHNjcmlwdD5hbGVydCgnaGVsbG8nKTwvc2NyaXB0Pg==" frameborder="0"></iframe>',

+            '<iframe src="DaTa:text/html;base64,PHNjcmlwdD5hbGVydCgnaGVsbG8nKTwvc2NyaXB0Pg==" frameborder="0"></iframe>',

             '<iframe src=" data:text/html;base64,PHNjcmlwdD5hbGVydCgnaGVsbG8nKTwvc2NyaXB0Pg==" frameborder="0"></iframe>',
             '<iframe src=" data:text/html;base64,PHNjcmlwdD5hbGVydCgnaGVsbG8nKTwvc2NyaXB0Pg==" frameborder="0"></iframe>',

-            '<iframe srcdoc="<script>window.alert(document.cookie)</script>"></iframe>'
+            '<img src="javascript:alert(document.cookie)"/>',
+            '<img src="JavAScRipT:alert(document.cookie)"/>',
+            '<img src="JavAScRipT:alert(document.cookie)"/>',
+            '<img SRC=" javascript: alert(document.cookie)"/>',
+            '<img src="data:text/html;base64,PHNjcmlwdD5hbGVydCgnaGVsbG8nKTwvc2NyaXB0Pg=="/>',
+            '<img src="DaTa:text/html;base64,PHNjcmlwdD5hbGVydCgnaGVsbG8nKTwvc2NyaXB0Pg=="/>',
+            '<img src=" data:text/html;base64,PHNjcmlwdD5hbGVydCgnaGVsbG8nKTwvc2NyaXB0Pg=="/>',
+            '<iframe srcdoc="<script>window.alert(document.cookie)</script>"></iframe>',
+            '<iframe SRCdoc="<script>window.alert(document.cookie)</script>"></iframe>',
+            '<IMG SRC=`javascript:alert("RSnake says, \'XSS\'")`>',

         ];
 
         $this->asEditor();
         ];
 
         $this->asEditor();

-        $page = Page::first();
+        $page = Page::query()->first();

 
         foreach ($checks as $check) {
             $page->html = $check;
 
         foreach ($checks as $check) {
             $page->html = $check;


@@ -149,25 +185,28 @@ class PageContentTest extends TestCase
 
             $pageView = $this->get($page->getUrl());
             $pageView->assertStatus(200);
 
             $pageView = $this->get($page->getUrl());
             $pageView->assertStatus(200);

-            $pageView->assertElementNotContains('.page-content', '<iframe>');
-            $pageView->assertElementNotContains('.page-content', '</iframe>');
-            $pageView->assertElementNotContains('.page-content', 'src=');
-            $pageView->assertElementNotContains('.page-content', 'javascript:');
-            $pageView->assertElementNotContains('.page-content', 'data:');
-            $pageView->assertElementNotContains('.page-content', 'base64');
+            $html = $this->withHtml($pageView);
+            $html->assertElementNotContains('.page-content', '<iframe>');
+            $html->assertElementNotContains('.page-content', '<img');
+            $html->assertElementNotContains('.page-content', '</iframe>');
+            $html->assertElementNotContains('.page-content', 'src=');
+            $html->assertElementNotContains('.page-content', 'javascript:');
+            $html->assertElementNotContains('.page-content', 'data:');
+            $html->assertElementNotContains('.page-content', 'base64');

         }
         }

-

     }
 
     public function test_javascript_uri_links_are_removed()
     {
         $checks = [
             '<a id="xss" href="javascript:alert(document.cookie)>Click me</a>',
     }
 
     public function test_javascript_uri_links_are_removed()
     {
         $checks = [
             '<a id="xss" href="javascript:alert(document.cookie)>Click me</a>',

-            '<a id="xss" href="javascript: alert(document.cookie)>Click me</a>'
+            '<a id="xss" href="javascript: alert(document.cookie)>Click me</a>',
+            '<a id="xss" href="JaVaScRiPt: alert(document.cookie)>Click me</a>',
+            '<a id="xss" href=" JaVaScRiPt: alert(document.cookie)>Click me</a>',

         ];
 
         $this->asEditor();
         ];
 
         $this->asEditor();

-        $page = Page::first();
+        $page = Page::query()->first();

 
         foreach ($checks as $check) {
             $page->html = $check;
 
         foreach ($checks as $check) {
             $page->html = $check;


@@ -175,20 +214,23 @@ class PageContentTest extends TestCase
 
             $pageView = $this->get($page->getUrl());
             $pageView->assertStatus(200);
 
             $pageView = $this->get($page->getUrl());
             $pageView->assertStatus(200);

-            $pageView->assertElementNotContains('.page-content', '<a id="xss">');
-            $pageView->assertElementNotContains('.page-content', 'href=javascript:');
+            $this->withHtml($pageView)->assertElementNotContains('.page-content', '<a id="xss"');
+            $this->withHtml($pageView)->assertElementNotContains('.page-content', 'href=javascript:');

         }
     }
         }
     }

+

     public function test_form_actions_with_javascript_are_removed()
     {
         $checks = [
             '<form><input id="xss" type=submit formaction=javascript:alert(document.domain) value=Submit><input></form>',
     public function test_form_actions_with_javascript_are_removed()
     {
         $checks = [
             '<form><input id="xss" type=submit formaction=javascript:alert(document.domain) value=Submit><input></form>',

+            '<form ><button id="xss" formaction="JaVaScRiPt:alert(document.domain)">Click me</button></form>',

             '<form ><button id="xss" formaction=javascript:alert(document.domain)>Click me</button></form>',
             '<form ><button id="xss" formaction=javascript:alert(document.domain)>Click me</button></form>',

-            '<form id="xss" action=javascript:alert(document.domain)><input type=submit value=Submit></form>'
+            '<form id="xss" action=javascript:alert(document.domain)><input type=submit value=Submit></form>',
+            '<form id="xss" action="JaVaScRiPt:alert(document.domain)"><input type=submit value=Submit></form>',

         ];
 
         $this->asEditor();
         ];
 
         $this->asEditor();

-        $page = Page::first();
+        $page = Page::query()->first();

 
         foreach ($checks as $check) {
             $page->html = $check;
 
         foreach ($checks as $check) {
             $page->html = $check;


@@ -196,22 +238,24 @@ class PageContentTest extends TestCase
 
             $pageView = $this->get($page->getUrl());
             $pageView->assertStatus(200);
 
             $pageView = $this->get($page->getUrl());
             $pageView->assertStatus(200);

-            $pageView->assertElementNotContains('.page-content', '<button id="xss"');
-            $pageView->assertElementNotContains('.page-content', '<input id="xss"');
-            $pageView->assertElementNotContains('.page-content', '<form id="xss"');
-            $pageView->assertElementNotContains('.page-content', 'action=javascript:');
-            $pageView->assertElementNotContains('.page-content', 'formaction=javascript:');
+            $this->withHtml($pageView)->assertElementNotContains('.page-content', '<button id="xss"');
+            $this->withHtml($pageView)->assertElementNotContains('.page-content', '<input id="xss"');
+            $this->withHtml($pageView)->assertElementNotContains('.page-content', '<form id="xss"');
+            $this->withHtml($pageView)->assertElementNotContains('.page-content', 'action=javascript:');
+            $this->withHtml($pageView)->assertElementNotContains('.page-content', 'formaction=javascript:');

         }
     }
         }
     }

-    
+

     public function test_metadata_redirects_are_removed()
     {
         $checks = [
             '<meta http-equiv="refresh" content="0; url=//external_url">',
     public function test_metadata_redirects_are_removed()
     {
         $checks = [
             '<meta http-equiv="refresh" content="0; url=//external_url">',

+            '<meta http-equiv="refresh" ConTeNt="0; url=//external_url">',
+            '<meta http-equiv="refresh" content="0; UrL=//external_url">',

         ];
 
         $this->asEditor();
         ];
 
         $this->asEditor();

-        $page = Page::first();
+        $page = Page::query()->first();

 
         foreach ($checks as $check) {
             $page->html = $check;
 
         foreach ($checks as $check) {
             $page->html = $check;


@@ -219,39 +263,42 @@ class PageContentTest extends TestCase
 
             $pageView = $this->get($page->getUrl());
             $pageView->assertStatus(200);
 
             $pageView = $this->get($page->getUrl());
             $pageView->assertStatus(200);

-            $pageView->assertElementNotContains('.page-content', '<meta>');
-            $pageView->assertElementNotContains('.page-content', '</meta>');
-            $pageView->assertElementNotContains('.page-content', 'content=');
-            $pageView->assertElementNotContains('.page-content', 'external_url');
+            $this->withHtml($pageView)->assertElementNotContains('.page-content', '<meta>');
+            $this->withHtml($pageView)->assertElementNotContains('.page-content', '</meta>');
+            $this->withHtml($pageView)->assertElementNotContains('.page-content', 'content=');
+            $this->withHtml($pageView)->assertElementNotContains('.page-content', 'external_url');

         }
     }
         }
     }

+

     public function test_page_inline_on_attributes_removed_by_default()
     {
         $this->asEditor();
     public function test_page_inline_on_attributes_removed_by_default()
     {
         $this->asEditor();

-        $page = Page::first();
+        $page = Page::query()->first();

         $script = '<p onmouseenter="console.log(\'test\')">Hello</p>';
         $page->html = "escape {$script}";
         $page->save();
 
         $pageView = $this->get($page->getUrl());
         $pageView->assertStatus(200);
         $script = '<p onmouseenter="console.log(\'test\')">Hello</p>';
         $page->html = "escape {$script}";
         $page->save();
 
         $pageView = $this->get($page->getUrl());
         $pageView->assertStatus(200);

-        $pageView->assertDontSee($script);
-        $pageView->assertSee('<p>Hello</p>');
+        $pageView->assertDontSee($script, false);
+        $pageView->assertSee('<p>Hello</p>', false);

     }
 
     public function test_more_complex_inline_on_attributes_escaping_scenarios()
     {
         $checks = [
             '<p onclick="console.log(\'test\')">Hello</p>',
     }
 
     public function test_more_complex_inline_on_attributes_escaping_scenarios()
     {
         $checks = [
             '<p onclick="console.log(\'test\')">Hello</p>',

+            '<p OnCliCk="console.log(\'test\')">Hello</p>',

             '<div>Lorem ipsum dolor sit amet.</div><p onclick="console.log(\'test\')">Hello</p>',
             '<div>Lorem ipsum dolor sit amet.<p onclick="console.log(\'test\')">Hello</p></div>',
             '<div><div><div><div>Lorem ipsum dolor sit amet.<p onclick="console.log(\'test\')">Hello</p></div></div></div></div>',
             '<div onclick="console.log(\'test\')">Lorem ipsum dolor sit amet.</div><p onclick="console.log(\'test\')">Hello</p><div></div>',
             '<a a="<img src=1 onerror=\'alert(1)\'> ',
             '<div>Lorem ipsum dolor sit amet.</div><p onclick="console.log(\'test\')">Hello</p>',
             '<div>Lorem ipsum dolor sit amet.<p onclick="console.log(\'test\')">Hello</p></div>',
             '<div><div><div><div>Lorem ipsum dolor sit amet.<p onclick="console.log(\'test\')">Hello</p></div></div></div></div>',
             '<div onclick="console.log(\'test\')">Lorem ipsum dolor sit amet.</div><p onclick="console.log(\'test\')">Hello</p><div></div>',
             '<a a="<img src=1 onerror=\'alert(1)\'> ',

+            '\<a onclick="alert(document.cookie)"\>xss link\</a\>',

         ];
 
         $this->asEditor();
         ];
 
         $this->asEditor();

-        $page = Page::first();
+        $page = Page::query()->first();

 
         foreach ($checks as $check) {
             $page->html = $check;
 
         foreach ($checks as $check) {
             $page->html = $check;


@@ -259,15 +306,14 @@ class PageContentTest extends TestCase
 
             $pageView = $this->get($page->getUrl());
             $pageView->assertStatus(200);
 
             $pageView = $this->get($page->getUrl());
             $pageView->assertStatus(200);

-            $pageView->assertElementNotContains('.page-content', 'onclick');
+            $this->withHtml($pageView)->assertElementNotContains('.page-content', 'onclick');

         }
         }

-

     }
 
     public function test_page_content_scripts_show_when_configured()
     {
         $this->asEditor();
     }
 
     public function test_page_content_scripts_show_when_configured()
     {
         $this->asEditor();

-        $page = Page::first();
+        $page = Page::query()->first();

         config()->push('app.allow_content_scripts', 'true');
 
         $script = 'abc123<script>console.log("hello-test")</script>abc123';
         config()->push('app.allow_content_scripts', 'true');
 
         $script = 'abc123<script>console.log("hello-test")</script>abc123';


@@ -275,14 +321,36 @@ class PageContentTest extends TestCase
         $page->save();
 
         $pageView = $this->get($page->getUrl());
         $page->save();
 
         $pageView = $this->get($page->getUrl());

-        $pageView->assertSee($script);
+        $pageView->assertSee($script, false);

         $pageView->assertDontSee('abc123abc123');
     }
 
         $pageView->assertDontSee('abc123abc123');
     }
 

+    public function test_svg_xlink_hrefs_are_removed()
+    {
+        $checks = [
+            '<svg id="test" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="100" height="100"><a xlink:href="javascript:alert(document.domain)"><rect x="0" y="0" width="100" height="100" /></a></svg>',
+            '<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><use xlink:href="data:application/xml;base64 ,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHhtbG5zOnhsaW5rPSJodHRwOi8vd3d3LnczLm9yZy8xOTk5L3hsaW5rIj4KPGRlZnM+CjxjaXJjbGUgaWQ9InRlc3QiIHI9IjAiIGN4PSIwIiBjeT0iMCIgc3R5bGU9ImZpbGw6ICNGMDAiPgo8c2V0IGF0dHJpYnV0ZU5hbWU9ImZpbGwiIGF0dHJpYnV0ZVR5cGU9IkNTUyIgb25iZWdpbj0nYWxlcnQoZG9jdW1lbnQuZG9tYWluKScKb25lbmQ9J2FsZXJ0KCJvbmVuZCIpJyB0bz0iIzAwRiIgYmVnaW49IjBzIiBkdXI9Ijk5OXMiIC8+CjwvY2lyY2xlPgo8L2RlZnM+Cjx1c2UgeGxpbms6aHJlZj0iI3Rlc3QiLz4KPC9zdmc+#test"/></svg>',
+        ];
+
+        $this->asEditor();
+        $page = Page::query()->first();
+
+        foreach ($checks as $check) {
+            $page->html = $check;
+            $page->save();
+
+            $pageView = $this->get($page->getUrl());
+            $pageView->assertStatus(200);
+            $this->withHtml($pageView)->assertElementNotContains('.page-content', 'alert');
+            $this->withHtml($pageView)->assertElementNotContains('.page-content', 'xlink:href');
+            $this->withHtml($pageView)->assertElementNotContains('.page-content', 'application/xml');
+        }
+    }
+

     public function test_page_inline_on_attributes_show_if_configured()
     {
         $this->asEditor();
     public function test_page_inline_on_attributes_show_if_configured()
     {
         $this->asEditor();

-        $page = Page::first();
+        $page = Page::query()->first();

         config()->push('app.allow_content_scripts', 'true');
 
         $script = '<p onmouseenter="console.log(\'test\')">Hello</p>';
         config()->push('app.allow_content_scripts', 'true');
 
         $script = '<p onmouseenter="console.log(\'test\')">Hello</p>';


@@ -290,21 +358,21 @@ class PageContentTest extends TestCase
         $page->save();
 
         $pageView = $this->get($page->getUrl());
         $page->save();
 
         $pageView = $this->get($page->getUrl());

-        $pageView->assertSee($script);
-        $pageView->assertDontSee('<p>Hello</p>');
+        $pageView->assertSee($script, false);
+        $pageView->assertDontSee('<p>Hello</p>', false);

     }
 
     public function test_duplicate_ids_does_not_break_page_render()
     {
         $this->asEditor();
     }
 
     public function test_duplicate_ids_does_not_break_page_render()
     {
         $this->asEditor();

-        $pageA = Page::first();
+        $pageA = Page::query()->first();

         $pageB = Page::query()->where('id', '!=', $pageA->id)->first();
 
         $content = '<ul id="bkmrk-xxx-%28"></ul> <ul id="bkmrk-xxx-%28"></ul>';
         $pageA->html = $content;
         $pageA->save();
 
         $pageB = Page::query()->where('id', '!=', $pageA->id)->first();
 
         $content = '<ul id="bkmrk-xxx-%28"></ul> <ul id="bkmrk-xxx-%28"></ul>';
         $pageA->html = $content;
         $pageA->save();
 

-        $pageB->html = '<ul id="bkmrk-xxx-%28"></ul> <p>{{@'. $pageA->id .'#test}}</p>';
+        $pageB->html = '<ul id="bkmrk-xxx-%28"></ul> <p>{{@' . $pageA->id . '#test}}</p>';

         $pageB->save();
 
         $pageView = $this->get($pageB->getUrl());
         $pageB->save();
 
         $pageView = $this->get($pageB->getUrl());


@@ -314,33 +382,33 @@ class PageContentTest extends TestCase
     public function test_duplicate_ids_fixed_on_page_save()
     {
         $this->asEditor();
     public function test_duplicate_ids_fixed_on_page_save()
     {
         $this->asEditor();

-        $page = Page::first();
+        $page = Page::query()->first();

 
         $content = '<ul id="bkmrk-test"><li>test a</li><li><ul id="bkmrk-test"><li>test b</li></ul></li></ul>';
         $pageSave = $this->put($page->getUrl(), [
 
         $content = '<ul id="bkmrk-test"><li>test a</li><li><ul id="bkmrk-test"><li>test b</li></ul></li></ul>';
         $pageSave = $this->put($page->getUrl(), [

-            'name' => $page->name,
-            'html' => $content,
-            'summary' => ''
+            'name'    => $page->name,
+            'html'    => $content,
+            'summary' => '',

         ]);
         $pageSave->assertRedirect();
 
         ]);
         $pageSave->assertRedirect();
 

-        $updatedPage = Page::where('id', '=', $page->id)->first();
-        $this->assertEquals(substr_count($updatedPage->html, "bkmrk-test\""), 1);
+        $updatedPage = Page::query()->where('id', '=', $page->id)->first();
+        $this->assertEquals(substr_count($updatedPage->html, 'bkmrk-test"'), 1);

     }
 
     public function test_anchors_referencing_non_bkmrk_ids_rewritten_after_save()
     {
         $this->asEditor();
     }
 
     public function test_anchors_referencing_non_bkmrk_ids_rewritten_after_save()
     {
         $this->asEditor();

-        $page = Page::first();
+        $page = Page::query()->first();

 
         $content = '<h1 id="non-standard-id">test</h1><p><a href="#non-standard-id">link</a></p>';
         $this->put($page->getUrl(), [
 
         $content = '<h1 id="non-standard-id">test</h1><p><a href="#non-standard-id">link</a></p>';
         $this->put($page->getUrl(), [

-            'name' => $page->name,
-            'html' => $content,
-            'summary' => ''
+            'name'    => $page->name,
+            'html'    => $content,
+            'summary' => '',

         ]);
 
         ]);
 

-        $updatedPage = Page::where('id', '=', $page->id)->first();
+        $updatedPage = Page::query()->where('id', '=', $page->id)->first();

         $this->assertStringContainsString('id="bkmrk-test"', $updatedPage->html);
         $this->assertStringContainsString('href="#bkmrk-test"', $updatedPage->html);
     }
         $this->assertStringContainsString('id="bkmrk-test"', $updatedPage->html);
         $this->assertStringContainsString('href="#bkmrk-test"', $updatedPage->html);
     }


@@ -354,21 +422,21 @@ class PageContentTest extends TestCase
         $this->assertCount(3, $navMap);
         $this->assertArrayMapIncludes([
             'nodeName' => 'h1',
         $this->assertCount(3, $navMap);
         $this->assertArrayMapIncludes([
             'nodeName' => 'h1',

-            'link' => '#testa',
-            'text' => 'Hello',
-            'level' => 1,
+            'link'     => '#testa',
+            'text'     => 'Hello',
+            'level'    => 1,

         ], $navMap[0]);
         $this->assertArrayMapIncludes([
             'nodeName' => 'h2',
         ], $navMap[0]);
         $this->assertArrayMapIncludes([
             'nodeName' => 'h2',

-            'link' => '#testb',
-            'text' => 'There',
-            'level' => 2,
+            'link'     => '#testb',
+            'text'     => 'There',
+            'level'    => 2,

         ], $navMap[1]);
         $this->assertArrayMapIncludes([
             'nodeName' => 'h3',
         ], $navMap[1]);
         $this->assertArrayMapIncludes([
             'nodeName' => 'h3',

-            'link' => '#testc',
-            'text' => 'Donkey',
-            'level' => 3,
+            'link'     => '#testc',
+            'text'     => 'Donkey',
+            'level'    => 3,

         ], $navMap[2]);
     }
 
         ], $navMap[2]);
     }
 


@@ -381,8 +449,8 @@ class PageContentTest extends TestCase
         $this->assertCount(1, $navMap);
         $this->assertArrayMapIncludes([
             'nodeName' => 'h1',
         $this->assertCount(1, $navMap);
         $this->assertArrayMapIncludes([
             'nodeName' => 'h1',

-            'link' => '#testa',
-            'text' => 'Hello'
+            'link'     => '#testa',
+            'text'     => 'Hello',

         ], $navMap[0]);
     }
 
         ], $navMap[0]);
     }
 


@@ -395,15 +463,15 @@ class PageContentTest extends TestCase
         $this->assertCount(3, $navMap);
         $this->assertArrayMapIncludes([
             'nodeName' => 'h4',
         $this->assertCount(3, $navMap);
         $this->assertArrayMapIncludes([
             'nodeName' => 'h4',

-            'level' => 1,
+            'level'    => 1,

         ], $navMap[0]);
         $this->assertArrayMapIncludes([
             'nodeName' => 'h5',
         ], $navMap[0]);
         $this->assertArrayMapIncludes([
             'nodeName' => 'h5',

-            'level' => 2,
+            'level'    => 2,

         ], $navMap[1]);
         $this->assertArrayMapIncludes([
             'nodeName' => 'h6',
         ], $navMap[1]);
         $this->assertArrayMapIncludes([
             'nodeName' => 'h6',

-            'level' => 3,
+            'level'    => 3,

         ], $navMap[2]);
     }
 
         ], $navMap[2]);
     }
 


@@ -432,14 +500,14 @@ class PageContentTest extends TestCase
 | Paragraph   | Text        |';
         $this->put($page->getUrl(), [
             'name' => $page->name,  'markdown' => $content,
 | Paragraph   | Text        |';
         $this->put($page->getUrl(), [
             'name' => $page->name,  'markdown' => $content,

-            'html' => '', 'summary' => ''
+            'html' => '', 'summary' => '',

         ]);
 
         $page->refresh();
         $this->assertStringContainsString('</tbody>', $page->html);
 
         $pageView = $this->get($page->getUrl());
         ]);
 
         $page->refresh();
         $this->assertStringContainsString('</tbody>', $page->html);
 
         $pageView = $this->get($page->getUrl());

-        $pageView->assertElementExists('.page-content table tbody td');
+        $this->withHtml($pageView)->assertElementExists('.page-content table tbody td');

     }
 
     public function test_page_markdown_task_list_rendering()
     }
 
     public function test_page_markdown_task_list_rendering()


@@ -451,7 +519,7 @@ class PageContentTest extends TestCase
 - [x] Item b';
         $this->put($page->getUrl(), [
             'name' => $page->name,  'markdown' => $content,
 - [x] Item b';
         $this->put($page->getUrl(), [
             'name' => $page->name,  'markdown' => $content,

-            'html' => '', 'summary' => ''
+            'html' => '', 'summary' => '',

         ]);
 
         $page->refresh();
         ]);
 
         $page->refresh();


@@ -459,7 +527,8 @@ class PageContentTest extends TestCase
         $this->assertStringContainsString('type="checkbox"', $page->html);
 
         $pageView = $this->get($page->getUrl());
         $this->assertStringContainsString('type="checkbox"', $page->html);
 
         $pageView = $this->get($page->getUrl());

-        $pageView->assertElementExists('.page-content input[type=checkbox]');
+        $this->withHtml($pageView)->assertElementExists('.page-content li.task-list-item input[type=checkbox]');
+        $this->withHtml($pageView)->assertElementExists('.page-content li.task-list-item input[type=checkbox][checked]');

     }
 
     public function test_page_markdown_strikethrough_rendering()
     }
 
     public function test_page_markdown_strikethrough_rendering()


@@ -470,13 +539,197 @@ class PageContentTest extends TestCase
         $content = '~~some crossed out text~~';
         $this->put($page->getUrl(), [
             'name' => $page->name,  'markdown' => $content,
         $content = '~~some crossed out text~~';
         $this->put($page->getUrl(), [
             'name' => $page->name,  'markdown' => $content,

-            'html' => '', 'summary' => ''
+            'html' => '', 'summary' => '',

         ]);
 
         $page->refresh();
         $this->assertStringMatchesFormat('%A<s%A>some crossed out text</s>%A', $page->html);
 
         $pageView = $this->get($page->getUrl());
         ]);
 
         $page->refresh();
         $this->assertStringMatchesFormat('%A<s%A>some crossed out text</s>%A', $page->html);
 
         $pageView = $this->get($page->getUrl());

-        $pageView->assertElementExists('.page-content p > s');
+        $this->withHtml($pageView)->assertElementExists('.page-content p > s');
+    }
+
+    public function test_page_markdown_single_html_comment_saving()
+    {
+        $this->asEditor();
+        $page = Page::query()->first();
+
+        $content = '<!-- Test Comment -->';
+        $this->put($page->getUrl(), [
+            'name' => $page->name,  'markdown' => $content,
+            'html' => '', 'summary' => '',
+        ]);
+
+        $page->refresh();
+        $this->assertStringMatchesFormat($content, $page->html);
+
+        $pageView = $this->get($page->getUrl());
+        $pageView->assertStatus(200);
+        $pageView->assertSee($content, false);
+    }
+
+    public function test_base64_images_get_extracted_from_page_content()
+    {
+        $this->asEditor();
+        $page = Page::query()->first();
+
+        $this->put($page->getUrl(), [
+            'name' => $page->name, 'summary' => '',
+            'html' => '<p>test<img src="data:image/jpeg;base64,' . $this->base64Jpeg . '"/></p>',
+        ]);
+
+        $page->refresh();
+        $this->assertStringMatchesFormat('%A<p%A>test<img src="http://localhost/uploads/images/gallery/%A.jpeg">%A</p>%A', $page->html);
+
+        $matches = [];
+        preg_match('/src="https:\/\/p.rizon.top:443\/http\/localhost(.*?)"/', $page->html, $matches);
+        $imagePath = $matches[1];
+        $imageFile = public_path($imagePath);
+        $this->assertEquals(base64_decode($this->base64Jpeg), file_get_contents($imageFile));
+
+        $this->deleteImage($imagePath);
+    }
+
+    public function test_base64_images_get_extracted_when_containing_whitespace()
+    {
+        $this->asEditor();
+        $page = Page::query()->first();
+
+        $base64PngWithWhitespace = "iVBORw0KGg\noAAAANSUhE\tUgAAAAEAAAA BCA   YAAAAfFcSJAAA\n\t ACklEQVR4nGMAAQAABQAB";
+        $base64PngWithoutWhitespace = 'iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAACklEQVR4nGMAAQAABQAB';
+        $this->put($page->getUrl(), [
+            'name' => $page->name, 'summary' => '',
+            'html' => '<p>test<img src="data:image/png;base64,' . $base64PngWithWhitespace . '"/></p>',
+        ]);
+
+        $page->refresh();
+        $this->assertStringMatchesFormat('%A<p%A>test<img src="http://localhost/uploads/images/gallery/%A.png">%A</p>%A', $page->html);
+
+        $matches = [];
+        preg_match('/src="https:\/\/p.rizon.top:443\/http\/localhost(.*?)"/', $page->html, $matches);
+        $imagePath = $matches[1];
+        $imageFile = public_path($imagePath);
+        $this->assertEquals(base64_decode($base64PngWithoutWhitespace), file_get_contents($imageFile));
+
+        $this->deleteImage($imagePath);
+    }
+
+    public function test_base64_images_within_html_blanked_if_not_supported_extension_for_extract()
+    {
+        // Relevant to https://github.com/BookStackApp/BookStack/issues/3010 and other cases
+        $extensions = [
+            'jiff', 'pngr', 'png ', ' png', '.png', 'png.', 'p.ng', ',png',
+            'data:image/png', ',data:image/png',
+        ];
+
+        foreach ($extensions as $extension) {
+            $this->asEditor();
+            $page = Page::query()->first();
+
+            $this->put($page->getUrl(), [
+                'name' => $page->name, 'summary' => '',
+                'html' => '<p>test<img src="data:image/' . $extension . ';base64,' . $this->base64Jpeg . '"/></p>',
+            ]);
+
+            $page->refresh();
+            $this->assertStringContainsString('<img src=""', $page->html);
+        }
+    }
+
+    public function test_base64_images_get_extracted_from_markdown_page_content()
+    {
+        $this->asEditor();
+        $page = Page::query()->first();
+
+        $this->put($page->getUrl(), [
+            'name'     => $page->name, 'summary' => '',
+            'markdown' => 'test ![test](data:image/jpeg;base64,' . $this->base64Jpeg . ')',
+        ]);
+
+        $page->refresh();
+        $this->assertStringMatchesFormat('%A<p%A>test <img src="http://localhost/uploads/images/gallery/%A.jpeg" alt="test">%A</p>%A', $page->html);
+
+        $matches = [];
+        preg_match('/src="https:\/\/p.rizon.top:443\/http\/localhost(.*?)"/', $page->html, $matches);
+        $imagePath = $matches[1];
+        $imageFile = public_path($imagePath);
+        $this->assertEquals(base64_decode($this->base64Jpeg), file_get_contents($imageFile));
+
+        $this->deleteImage($imagePath);
+    }
+
+    public function test_markdown_base64_extract_not_limited_by_pcre_limits()
+    {
+        $pcreBacktrackLimit = ini_get('pcre.backtrack_limit');
+        $pcreRecursionLimit = ini_get('pcre.recursion_limit');
+
+        $this->asEditor();
+        $page = Page::query()->first();
+
+        ini_set('pcre.backtrack_limit', '500');
+        ini_set('pcre.recursion_limit', '500');
+
+        $content = str_repeat('a', 5000);
+        $base64Content = base64_encode($content);
+
+        $this->put($page->getUrl(), [
+            'name'     => $page->name, 'summary' => '',
+            'markdown' => 'test ![test](data:image/jpeg;base64,' . $base64Content . ') ![test](data:image/jpeg;base64,' . $base64Content . ')',
+        ]);
+
+        $page->refresh();
+        $this->assertStringMatchesFormat('<p%A>test <img src="http://localhost/uploads/images/gallery/%A.jpeg" alt="test"> <img src="http://localhost/uploads/images/gallery/%A.jpeg" alt="test">%A</p>%A', $page->html);
+
+        $matches = [];
+        preg_match('/src="https:\/\/p.rizon.top:443\/http\/localhost(.*?)"/', $page->html, $matches);
+        $imagePath = $matches[1];
+        $imageFile = public_path($imagePath);
+        $this->assertEquals($content, file_get_contents($imageFile));
+
+        $this->deleteImage($imagePath);
+        ini_set('pcre.backtrack_limit', $pcreBacktrackLimit);
+        ini_set('pcre.recursion_limit', $pcreRecursionLimit);
+    }
+
+    public function test_base64_images_within_markdown_blanked_if_not_supported_extension_for_extract()
+    {
+        $page = Page::query()->first();
+
+        $this->asEditor()->put($page->getUrl(), [
+            'name'     => $page->name, 'summary' => '',
+            'markdown' => 'test ![test](data:image/jiff;base64,' . $this->base64Jpeg . ')',
+        ]);
+
+        $this->assertStringContainsString('<img src=""', $page->refresh()->html);
+    }
+
+    public function test_nested_headers_gets_assigned_an_id()
+    {
+        $page = Page::query()->first();
+
+        $content = '<table><tbody><tr><td><h5>Simple Test</h5></td></tr></tbody></table>';
+        $this->asEditor()->put($page->getUrl(), [
+            'name'    => $page->name,
+            'html'    => $content,
+        ]);
+
+        // The top level <table> node will get assign the bkmrk-simple-test id because the system will
+        // take the node value of h5
+        // So the h5 should get the bkmrk-simple-test-1 id
+        $this->assertStringContainsString('<h5 id="bkmrk-simple-test-1">Simple Test</h5>', $page->refresh()->html);
+    }
+
+    public function test_non_breaking_spaces_are_preserved()
+    {
+        /** @var Page $page */
+        $page = Page::query()->first();
+
+        $content = '<p>&nbsp;</p>';
+        $this->asEditor()->put($page->getUrl(), [
+            'name'    => $page->name,
+            'html'    => $content,
+        ]);
+
+        $this->assertStringContainsString('<p id="bkmrk-%C2%A0">&nbsp;</p>', $page->refresh()->html);

     }
 }
     }
 }