BookStack Code Mirror - bookstack/blob - tests/Entity/PageContentTest.php

   1 <?php
   2
   3 namespace Tests\Entity;
   4
   5 use BookStack\Entities\Models\Page;
   6 use BookStack\Entities\Tools\PageContent;
   7 use Tests\TestCase;
   8
   9 class PageContentTest extends TestCase
  10 {
  11     protected string $base64Jpeg = '/9j/2wBDAAMCAgICAgMCAgIDAwMDBAYEBAQEBAgGBgUGCQgKCgkICQkKDA8MCgsOCwkJDRENDg8QEBEQCgwSExIQEw8QEBD/yQALCAABAAEBAREA/8wABgAQEAX/2gAIAQEAAD8A0s8g/9k=';
  12
  13     public function test_page_includes()
  14     {
  15         $page = $this->entities->page();
  16         $secondPage = $this->entities->page();
  17
  18         $secondPage->html = "<p id='section1'>Hello, This is a test</p><p id='section2'>This is a second block of content</p>";
  19         $secondPage->save();
  20
  21         $this->asEditor();
  22
  23         $pageContent = $this->get($page->getUrl());
  24         $pageContent->assertDontSee('Hello, This is a test');
  25
  26         $originalHtml = $page->html;
  27         $page->html .= "{{@{$secondPage->id}}}";
  28         $page->save();
  29
  30         $pageContent = $this->get($page->getUrl());
  31         $pageContent->assertSee('Hello, This is a test');
  32         $pageContent->assertSee('This is a second block of content');
  33
  34         $page->html = $originalHtml . " Well {{@{$secondPage->id}#section2}}";
  35         $page->save();
  36
  37         $pageContent = $this->get($page->getUrl());
  38         $pageContent->assertDontSee('Hello, This is a test');
  39         $pageContent->assertSee('Well This is a second block of content');
  40     }
  41
  42     public function test_saving_page_with_includes()
  43     {
  44         $page = $this->entities->page();
  45         $secondPage = $this->entities->page();
  46
  47         $this->asEditor();
  48         $includeTag = '{{@' . $secondPage->id . '}}';
  49         $page->html = '<p>' . $includeTag . '</p>';
  50
  51         $resp = $this->put($page->getUrl(), ['name' => $page->name, 'html' => $page->html, 'summary' => '']);
  52
  53         $resp->assertStatus(302);
  54
  55         $page = Page::find($page->id);
  56         $this->assertStringContainsString($includeTag, $page->html);
  57         $this->assertEquals('', $page->text);
  58     }
  59
  60     public function test_page_includes_rendered_on_book_export()
  61     {
  62         $page = $this->entities->page();
  63         $secondPage = Page::query()
  64             ->where('book_id', '!=', $page->book_id)
  65             ->first();
  66
  67         $content = '<p id="bkmrk-meow">my cat is awesome and scratchy</p>';
  68         $secondPage->html = $content;
  69         $secondPage->save();
  70
  71         $page->html = "{{@{$secondPage->id}#bkmrk-meow}}";
  72         $page->save();
  73
  74         $this->asEditor();
  75         $htmlContent = $this->get($page->book->getUrl('/export/html'));
  76         $htmlContent->assertSee('my cat is awesome and scratchy');
  77     }
  78
  79     public function test_page_includes_can_be_nested_up_to_three_times()
  80     {
  81         $page = $this->entities->page();
  82         $tag = "{{@{$page->id}#bkmrk-test}}";
  83         $page->html = '<p id="bkmrk-test">Hello Barry ' . $tag . '</p>';
  84         $page->save();
  85
  86         $pageResp = $this->asEditor()->get($page->getUrl());
  87         $this->withHtml($pageResp)->assertElementContains('#bkmrk-test', 'Hello Barry Hello Barry Hello Barry Hello Barry ' . $tag);
  88         $this->withHtml($pageResp)->assertElementNotContains('#bkmrk-test', 'Hello Barry Hello Barry Hello Barry Hello Barry Hello Barry ' . $tag);
  89     }
  90
  91     public function test_page_includes_to_nonexisting_pages_does_not_error()
  92     {
  93         $page = $this->entities->page();
  94         $missingId = Page::query()->max('id') + 1;
  95         $tag = "{{@{$missingId}}}";
  96         $page->html = '<p id="bkmrk-test">Hello Barry ' . $tag . '</p>';
  97         $page->save();
  98
  99         $pageResp = $this->asEditor()->get($page->getUrl());
 100         $pageResp->assertOk();
 101         $pageResp->assertSee('Hello Barry');
 102     }
 103
 104     public function test_page_content_scripts_removed_by_default()
 105     {
 106         $this->asEditor();
 107         $page = $this->entities->page();
 108         $script = 'abc123<script>console.log("hello-test")</script>abc123';
 109         $page->html = "escape {$script}";
 110         $page->save();
 111
 112         $pageView = $this->get($page->getUrl());
 113         $pageView->assertStatus(200);
 114         $pageView->assertDontSee($script, false);
 115         $pageView->assertSee('abc123abc123');
 116     }
 117
 118     public function test_more_complex_content_script_escaping_scenarios()
 119     {
 120         $checks = [
 121             "<p>Some script</p><script>alert('cat')</script>",
 122             "<div><div><div><div><p>Some script</p><script>alert('cat')</script></div></div></div></div>",
 123             "<p>Some script<script>alert('cat')</script></p>",
 124             "<p>Some script <div><script>alert('cat')</script></div></p>",
 125             "<p>Some script <script><div>alert('cat')</script></div></p>",
 126             "<p>Some script <script><div>alert('cat')</script><script><div>alert('cat')</script></p><script><div>alert('cat')</script>",
 127         ];
 128
 129         $this->asEditor();
 130         $page = $this->entities->page();
 131
 132         foreach ($checks as $check) {
 133             $page->html = $check;
 134             $page->save();
 135
 136             $pageView = $this->get($page->getUrl());
 137             $pageView->assertStatus(200);
 138             $this->withHtml($pageView)->assertElementNotContains('.page-content', '<script>');
 139             $this->withHtml($pageView)->assertElementNotContains('.page-content', '</script>');
 140         }
 141     }
 142
 143     public function test_js_and_base64_src_urls_are_removed()
 144     {
 145         $checks = [
 146             '<iframe src="javascript:alert(document.cookie)"></iframe>',
 147             '<iframe src="JavAScRipT:alert(document.cookie)"></iframe>',
 148             '<iframe src="JavAScRipT:alert(document.cookie)"></iframe>',
 149             '<iframe SRC=" javascript: alert(document.cookie)"></iframe>',
 150             '<iframe src="data:text/html;base64,PHNjcmlwdD5hbGVydCgnaGVsbG8nKTwvc2NyaXB0Pg==" frameborder="0"></iframe>',
 151             '<iframe src="DaTa:text/html;base64,PHNjcmlwdD5hbGVydCgnaGVsbG8nKTwvc2NyaXB0Pg==" frameborder="0"></iframe>',
 152             '<iframe src=" data:text/html;base64,PHNjcmlwdD5hbGVydCgnaGVsbG8nKTwvc2NyaXB0Pg==" frameborder="0"></iframe>',
 153             '<img src="javascript:alert(document.cookie)"/>',
 154             '<img src="JavAScRipT:alert(document.cookie)"/>',
 155             '<img src="JavAScRipT:alert(document.cookie)"/>',
 156             '<img SRC=" javascript: alert(document.cookie)"/>',
 157             '<img src="data:text/html;base64,PHNjcmlwdD5hbGVydCgnaGVsbG8nKTwvc2NyaXB0Pg=="/>',
 158             '<img src="DaTa:text/html;base64,PHNjcmlwdD5hbGVydCgnaGVsbG8nKTwvc2NyaXB0Pg=="/>',
 159             '<img src=" data:text/html;base64,PHNjcmlwdD5hbGVydCgnaGVsbG8nKTwvc2NyaXB0Pg=="/>',
 160             '<iframe srcdoc="<script>window.alert(document.cookie)</script>"></iframe>',
 161             '<iframe SRCdoc="<script>window.alert(document.cookie)</script>"></iframe>',
 162             '<IMG SRC=`javascript:alert("RSnake says, \'XSS\'")`>',
 163         ];
 164
 165         $this->asEditor();
 166         $page = $this->entities->page();
 167
 168         foreach ($checks as $check) {
 169             $page->html = $check;
 170             $page->save();
 171
 172             $pageView = $this->get($page->getUrl());
 173             $pageView->assertStatus(200);
 174             $html = $this->withHtml($pageView);
 175             $html->assertElementNotContains('.page-content', '<iframe>');
 176             $html->assertElementNotContains('.page-content', '<img');
 177             $html->assertElementNotContains('.page-content', '</iframe>');
 178             $html->assertElementNotContains('.page-content', 'src=');
 179             $html->assertElementNotContains('.page-content', 'javascript:');
 180             $html->assertElementNotContains('.page-content', 'data:');
 181             $html->assertElementNotContains('.page-content', 'base64');
 182         }
 183     }
 184
 185     public function test_javascript_uri_links_are_removed()
 186     {
 187         $checks = [
 188             '<a id="xss" href="javascript:alert(document.cookie)>Click me</a>',
 189             '<a id="xss" href="javascript: alert(document.cookie)>Click me</a>',
 190             '<a id="xss" href="JaVaScRiPt: alert(document.cookie)>Click me</a>',
 191             '<a id="xss" href=" JaVaScRiPt: alert(document.cookie)>Click me</a>',
 192         ];
 193
 194         $this->asEditor();
 195         $page = $this->entities->page();
 196
 197         foreach ($checks as $check) {
 198             $page->html = $check;
 199             $page->save();
 200
 201             $pageView = $this->get($page->getUrl());
 202             $pageView->assertStatus(200);
 203             $this->withHtml($pageView)->assertElementNotContains('.page-content', '<a id="xss"');
 204             $this->withHtml($pageView)->assertElementNotContains('.page-content', 'href=javascript:');
 205         }
 206     }
 207
 208     public function test_form_actions_with_javascript_are_removed()
 209     {
 210         $checks = [
 211             '<form><input id="xss" type=submit formaction=javascript:alert(document.domain) value=Submit><input></form>',
 212             '<form ><button id="xss" formaction="JaVaScRiPt:alert(document.domain)">Click me</button></form>',
 213             '<form ><button id="xss" formaction=javascript:alert(document.domain)>Click me</button></form>',
 214             '<form id="xss" action=javascript:alert(document.domain)><input type=submit value=Submit></form>',
 215             '<form id="xss" action="JaVaScRiPt:alert(document.domain)"><input type=submit value=Submit></form>',
 216         ];
 217
 218         $this->asEditor();
 219         $page = $this->entities->page();
 220
 221         foreach ($checks as $check) {
 222             $page->html = $check;
 223             $page->save();
 224
 225             $pageView = $this->get($page->getUrl());
 226             $pageView->assertStatus(200);
 227             $this->withHtml($pageView)->assertElementNotContains('.page-content', '<button id="xss"');
 228             $this->withHtml($pageView)->assertElementNotContains('.page-content', '<input id="xss"');
 229             $this->withHtml($pageView)->assertElementNotContains('.page-content', '<form id="xss"');
 230             $this->withHtml($pageView)->assertElementNotContains('.page-content', 'action=javascript:');
 231             $this->withHtml($pageView)->assertElementNotContains('.page-content', 'formaction=javascript:');
 232         }
 233     }
 234
 235     public function test_metadata_redirects_are_removed()
 236     {
 237         $checks = [
 238             '<meta http-equiv="refresh" content="0; url=//external_url">',
 239             '<meta http-equiv="refresh" ConTeNt="0; url=//external_url">',
 240             '<meta http-equiv="refresh" content="0; UrL=//external_url">',
 241         ];
 242
 243         $this->asEditor();
 244         $page = $this->entities->page();
 245
 246         foreach ($checks as $check) {
 247             $page->html = $check;
 248             $page->save();
 249
 250             $pageView = $this->get($page->getUrl());
 251             $pageView->assertStatus(200);
 252             $this->withHtml($pageView)->assertElementNotContains('.page-content', '<meta>');
 253             $this->withHtml($pageView)->assertElementNotContains('.page-content', '</meta>');
 254             $this->withHtml($pageView)->assertElementNotContains('.page-content', 'content=');
 255             $this->withHtml($pageView)->assertElementNotContains('.page-content', 'external_url');
 256         }
 257     }
 258
 259     public function test_page_inline_on_attributes_removed_by_default()
 260     {
 261         $this->asEditor();
 262         $page = $this->entities->page();
 263         $script = '<p onmouseenter="console.log(\'test\')">Hello</p>';
 264         $page->html = "escape {$script}";
 265         $page->save();
 266
 267         $pageView = $this->get($page->getUrl());
 268         $pageView->assertStatus(200);
 269         $pageView->assertDontSee($script, false);
 270         $pageView->assertSee('<p>Hello</p>', false);
 271     }
 272
 273     public function test_more_complex_inline_on_attributes_escaping_scenarios()
 274     {
 275         $checks = [
 276             '<p onclick="console.log(\'test\')">Hello</p>',
 277             '<p OnCliCk="console.log(\'test\')">Hello</p>',
 278             '<div>Lorem ipsum dolor sit amet.</div><p onclick="console.log(\'test\')">Hello</p>',
 279             '<div>Lorem ipsum dolor sit amet.<p onclick="console.log(\'test\')">Hello</p></div>',
 280             '<div><div><div><div>Lorem ipsum dolor sit amet.<p onclick="console.log(\'test\')">Hello</p></div></div></div></div>',
 281             '<div onclick="console.log(\'test\')">Lorem ipsum dolor sit amet.</div><p onclick="console.log(\'test\')">Hello</p><div></div>',
 282             '<a a="<img src=1 onerror=\'alert(1)\'> ',
 283             '\<a onclick="alert(document.cookie)"\>xss link\</a\>',
 284         ];
 285
 286         $this->asEditor();
 287         $page = $this->entities->page();
 288
 289         foreach ($checks as $check) {
 290             $page->html = $check;
 291             $page->save();
 292
 293             $pageView = $this->get($page->getUrl());
 294             $pageView->assertStatus(200);
 295             $this->withHtml($pageView)->assertElementNotContains('.page-content', 'onclick');
 296         }
 297     }
 298
 299     public function test_page_content_scripts_show_when_configured()
 300     {
 301         $this->asEditor();
 302         $page = $this->entities->page();
 303         config()->set('app.allow_content_scripts', 'true');
 304
 305         $script = 'abc123<script>console.log("hello-test")</script>abc123';
 306         $page->html = "no escape {$script}";
 307         $page->save();
 308
 309         $pageView = $this->get($page->getUrl());
 310         $pageView->assertSee($script, false);
 311         $pageView->assertDontSee('abc123abc123');
 312     }
 313
 314     public function test_svg_script_usage_is_removed()
 315     {
 316         $checks = [
 317             '<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>',
 318             '<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>',
 319             '<svg><animate href=#xss attributeName=href values=javascript:alert(1) /></svg>',
 320             '<svg><animate href="#xss" attributeName="href" values="a;javascript:alert(1)" /></svg>',
 321             '<svg><animate href="#xss" attributeName="href" values="a;data:alert(1)" /></svg>',
 322             '<svg><animate href=#xss attributeName=href from=javascript:alert(1) to=1 /><a id=xss><text x=20 y=20>XSS</text></a>',
 323             '<svg><set href=#xss attributeName=href from=? to=javascript:alert(1) /><a id=xss><text x=20 y=20>XSS</text></a>',
 324             '<svg><g><g><g><animate href=#xss attributeName=href values=javascript:alert(1) /></g></g></g></svg>',
 325         ];
 326
 327         $this->asEditor();
 328         $page = $this->entities->page();
 329
 330         foreach ($checks as $check) {
 331             $page->html = $check;
 332             $page->save();
 333
 334             $pageView = $this->get($page->getUrl());
 335             $pageView->assertStatus(200);
 336             $html = $this->withHtml($pageView);
 337             $html->assertElementNotContains('.page-content', 'alert');
 338             $html->assertElementNotContains('.page-content', 'xlink:href');
 339             $html->assertElementNotContains('.page-content', 'application/xml');
 340             $html->assertElementNotContains('.page-content', 'javascript');
 341         }
 342     }
 343
 344     public function test_page_inline_on_attributes_show_if_configured()
 345     {
 346         $this->asEditor();
 347         $page = $this->entities->page();
 348         config()->set('app.allow_content_scripts', 'true');
 349
 350         $script = '<p onmouseenter="console.log(\'test\')">Hello</p>';
 351         $page->html = "escape {$script}";
 352         $page->save();
 353
 354         $pageView = $this->get($page->getUrl());
 355         $pageView->assertSee($script, false);
 356         $pageView->assertDontSee('<p>Hello</p>', false);
 357     }
 358
 359     public function test_duplicate_ids_does_not_break_page_render()
 360     {
 361         $this->asEditor();
 362         $pageA = Page::query()->first();
 363         $pageB = Page::query()->where('id', '!=', $pageA->id)->first();
 364
 365         $content = '<ul id="bkmrk-xxx-%28"></ul> <ul id="bkmrk-xxx-%28"></ul>';
 366         $pageA->html = $content;
 367         $pageA->save();
 368
 369         $pageB->html = '<ul id="bkmrk-xxx-%28"></ul> <p>{{@' . $pageA->id . '#test}}</p>';
 370         $pageB->save();
 371
 372         $pageView = $this->get($pageB->getUrl());
 373         $pageView->assertSuccessful();
 374     }
 375
 376     public function test_duplicate_ids_fixed_on_page_save()
 377     {
 378         $this->asEditor();
 379         $page = $this->entities->page();
 380
 381         $content = '<ul id="bkmrk-test"><li>test a</li><li><ul id="bkmrk-test"><li>test b</li></ul></li></ul>';
 382         $pageSave = $this->put($page->getUrl(), [
 383             'name'    => $page->name,
 384             'html'    => $content,
 385             'summary' => '',
 386         ]);
 387         $pageSave->assertRedirect();
 388
 389         $updatedPage = Page::query()->where('id', '=', $page->id)->first();
 390         $this->assertEquals(substr_count($updatedPage->html, 'bkmrk-test"'), 1);
 391     }
 392
 393     public function test_anchors_referencing_non_bkmrk_ids_rewritten_after_save()
 394     {
 395         $this->asEditor();
 396         $page = $this->entities->page();
 397
 398         $content = '<h1 id="non-standard-id">test</h1><p><a href="#non-standard-id">link</a></p>';
 399         $this->put($page->getUrl(), [
 400             'name'    => $page->name,
 401             'html'    => $content,
 402             'summary' => '',
 403         ]);
 404
 405         $updatedPage = Page::query()->where('id', '=', $page->id)->first();
 406         $this->assertStringContainsString('id="bkmrk-test"', $updatedPage->html);
 407         $this->assertStringContainsString('href="#bkmrk-test"', $updatedPage->html);
 408     }
 409
 410     public function test_get_page_nav_sets_correct_properties()
 411     {
 412         $content = '<h1 id="testa">Hello</h1><h2 id="testb">There</h2><h3 id="testc">Donkey</h3>';
 413         $pageContent = new PageContent(new Page(['html' => $content]));
 414         $navMap = $pageContent->getNavigation($content);
 415
 416         $this->assertCount(3, $navMap);
 417         $this->assertArrayMapIncludes([
 418             'nodeName' => 'h1',
 419             'link'     => '#testa',
 420             'text'     => 'Hello',
 421             'level'    => 1,
 422         ], $navMap[0]);
 423         $this->assertArrayMapIncludes([
 424             'nodeName' => 'h2',
 425             'link'     => '#testb',
 426             'text'     => 'There',
 427             'level'    => 2,
 428         ], $navMap[1]);
 429         $this->assertArrayMapIncludes([
 430             'nodeName' => 'h3',
 431             'link'     => '#testc',
 432             'text'     => 'Donkey',
 433             'level'    => 3,
 434         ], $navMap[2]);
 435     }
 436
 437     public function test_get_page_nav_does_not_show_empty_titles()
 438     {
 439         $content = '<h1 id="testa">Hello</h1><h2 id="testb">&nbsp;</h2><h3 id="testc"></h3>';
 440         $pageContent = new PageContent(new Page(['html' => $content]));
 441         $navMap = $pageContent->getNavigation($content);
 442
 443         $this->assertCount(1, $navMap);
 444         $this->assertArrayMapIncludes([
 445             'nodeName' => 'h1',
 446             'link'     => '#testa',
 447             'text'     => 'Hello',
 448         ], $navMap[0]);
 449     }
 450
 451     public function test_get_page_nav_shifts_headers_if_only_smaller_ones_are_used()
 452     {
 453         $content = '<h4 id="testa">Hello</h4><h5 id="testb">There</h5><h6 id="testc">Donkey</h6>';
 454         $pageContent = new PageContent(new Page(['html' => $content]));
 455         $navMap = $pageContent->getNavigation($content);
 456
 457         $this->assertCount(3, $navMap);
 458         $this->assertArrayMapIncludes([
 459             'nodeName' => 'h4',
 460             'level'    => 1,
 461         ], $navMap[0]);
 462         $this->assertArrayMapIncludes([
 463             'nodeName' => 'h5',
 464             'level'    => 2,
 465         ], $navMap[1]);
 466         $this->assertArrayMapIncludes([
 467             'nodeName' => 'h6',
 468             'level'    => 3,
 469         ], $navMap[2]);
 470     }
 471
 472     public function test_page_text_decodes_html_entities()
 473     {
 474         $page = $this->entities->page();
 475
 476         $this->actingAs($this->users->admin())
 477             ->put($page->getUrl(''), [
 478                 'name' => 'Testing',
 479                 'html' => '<p>&quot;Hello &amp; welcome&quot;</p>',
 480             ]);
 481
 482         $page->refresh();
 483         $this->assertEquals('"Hello & welcome"', $page->text);
 484     }
 485
 486     public function test_page_markdown_table_rendering()
 487     {
 488         $this->asEditor();
 489         $page = $this->entities->page();
 490
 491         $content = '| Syntax      | Description |
 492 | ----------- | ----------- |
 493 | Header      | Title       |
 494 | Paragraph   | Text        |';
 495         $this->put($page->getUrl(), [
 496             'name' => $page->name,  'markdown' => $content,
 497             'html' => '', 'summary' => '',
 498         ]);
 499
 500         $page->refresh();
 501         $this->assertStringContainsString('</tbody>', $page->html);
 502
 503         $pageView = $this->get($page->getUrl());
 504         $this->withHtml($pageView)->assertElementExists('.page-content table tbody td');
 505     }
 506
 507     public function test_page_markdown_task_list_rendering()
 508     {
 509         $this->asEditor();
 510         $page = $this->entities->page();
 511
 512         $content = '- [ ] Item a
 513 - [x] Item b';
 514         $this->put($page->getUrl(), [
 515             'name' => $page->name,  'markdown' => $content,
 516             'html' => '', 'summary' => '',
 517         ]);
 518
 519         $page->refresh();
 520         $this->assertStringContainsString('input', $page->html);
 521         $this->assertStringContainsString('type="checkbox"', $page->html);
 522
 523         $pageView = $this->get($page->getUrl());
 524         $this->withHtml($pageView)->assertElementExists('.page-content li.task-list-item input[type=checkbox]');
 525         $this->withHtml($pageView)->assertElementExists('.page-content li.task-list-item input[type=checkbox][checked]');
 526     }
 527
 528     public function test_page_markdown_strikethrough_rendering()
 529     {
 530         $this->asEditor();
 531         $page = $this->entities->page();
 532
 533         $content = '~~some crossed out text~~';
 534         $this->put($page->getUrl(), [
 535             'name' => $page->name,  'markdown' => $content,
 536             'html' => '', 'summary' => '',
 537         ]);
 538
 539         $page->refresh();
 540         $this->assertStringMatchesFormat('%A<s%A>some crossed out text</s>%A', $page->html);
 541
 542         $pageView = $this->get($page->getUrl());
 543         $this->withHtml($pageView)->assertElementExists('.page-content p > s');
 544     }
 545
 546     public function test_page_markdown_single_html_comment_saving()
 547     {
 548         $this->asEditor();
 549         $page = $this->entities->page();
 550
 551         $content = '<!-- Test Comment -->';
 552         $this->put($page->getUrl(), [
 553             'name' => $page->name,  'markdown' => $content,
 554             'html' => '', 'summary' => '',
 555         ]);
 556
 557         $page->refresh();
 558         $this->assertStringMatchesFormat($content, $page->html);
 559
 560         $pageView = $this->get($page->getUrl());
 561         $pageView->assertStatus(200);
 562         $pageView->assertSee($content, false);
 563     }
 564
 565     public function test_base64_images_get_extracted_from_page_content()
 566     {
 567         $this->asEditor();
 568         $page = $this->entities->page();
 569
 570         $this->put($page->getUrl(), [
 571             'name' => $page->name, 'summary' => '',
 572             'html' => '<p>test<img src="data:image/jpeg;base64,' . $this->base64Jpeg . '"/></p>',
 573         ]);
 574
 575         $page->refresh();
 576         $this->assertStringMatchesFormat('%A<p%A>test<img src="http://localhost/uploads/images/gallery/%A.jpeg">%A</p>%A', $page->html);
 577
 578         $matches = [];
 579         preg_match('/src="https:\/\/p.rizon.top:443\/http\/localhost(.*?)"/', $page->html, $matches);
 580         $imagePath = $matches[1];
 581         $imageFile = public_path($imagePath);
 582         $this->assertEquals(base64_decode($this->base64Jpeg), file_get_contents($imageFile));
 583
 584         $this->files->deleteAtRelativePath($imagePath);
 585     }
 586
 587     public function test_base64_images_get_extracted_when_containing_whitespace()
 588     {
 589         $this->asEditor();
 590         $page = $this->entities->page();
 591
 592         $base64PngWithWhitespace = "iVBORw0KGg\noAAAANSUhE\tUgAAAAEAAAA BCA   YAAAAfFcSJAAA\n\t ACklEQVR4nGMAAQAABQAB";
 593         $base64PngWithoutWhitespace = 'iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAACklEQVR4nGMAAQAABQAB';
 594         $this->put($page->getUrl(), [
 595             'name' => $page->name, 'summary' => '',
 596             'html' => '<p>test<img src="data:image/png;base64,' . $base64PngWithWhitespace . '"/></p>',
 597         ]);
 598
 599         $page->refresh();
 600         $this->assertStringMatchesFormat('%A<p%A>test<img src="http://localhost/uploads/images/gallery/%A.png">%A</p>%A', $page->html);
 601
 602         $matches = [];
 603         preg_match('/src="https:\/\/p.rizon.top:443\/http\/localhost(.*?)"/', $page->html, $matches);
 604         $imagePath = $matches[1];
 605         $imageFile = public_path($imagePath);
 606         $this->assertEquals(base64_decode($base64PngWithoutWhitespace), file_get_contents($imageFile));
 607
 608         $this->files->deleteAtRelativePath($imagePath);
 609     }
 610
 611     public function test_base64_images_within_html_blanked_if_not_supported_extension_for_extract()
 612     {
 613         // Relevant to https://github.com/BookStackApp/BookStack/issues/3010 and other cases
 614         $extensions = [
 615             'jiff', 'pngr', 'png ', ' png', '.png', 'png.', 'p.ng', ',png',
 616             'data:image/png', ',data:image/png',
 617         ];
 618
 619         foreach ($extensions as $extension) {
 620             $this->asEditor();
 621             $page = $this->entities->page();
 622
 623             $this->put($page->getUrl(), [
 624                 'name' => $page->name, 'summary' => '',
 625                 'html' => '<p>test<img src="data:image/' . $extension . ';base64,' . $this->base64Jpeg . '"/></p>',
 626             ]);
 627
 628             $page->refresh();
 629             $this->assertStringContainsString('<img src=""', $page->html);
 630         }
 631     }
 632
 633     public function test_base64_images_within_html_blanked_if_no_image_create_permission()
 634     {
 635         $editor = $this->users->editor();
 636         $page = $this->entities->page();
 637         $this->permissions->removeUserRolePermissions($editor, ['image-create-all']);
 638
 639         $this->actingAs($editor)->put($page->getUrl(), [
 640             'name' => $page->name,
 641             'html' => '<p>test<img src="data:image/jpeg;base64,' . $this->base64Jpeg . '"/></p>',
 642         ]);
 643
 644         $page->refresh();
 645         $this->assertStringMatchesFormat('%A<p%A>test<img src="">%A</p>%A', $page->html);
 646     }
 647
 648     public function test_base64_images_within_html_blanked_if_content_does_not_appear_like_an_image()
 649     {
 650         $page = $this->entities->page();
 651
 652         $imgContent = base64_encode('file://test/a/b/c');
 653         $this->asEditor()->put($page->getUrl(), [
 654             'name' => $page->name,
 655             'html' => '<p>test<img src="data:image/jpeg;base64,' . $imgContent . '"/></p>',
 656         ]);
 657
 658         $page->refresh();
 659         $this->assertStringMatchesFormat('%A<p%A>test<img src="">%A</p>%A', $page->html);
 660     }
 661
 662     public function test_base64_images_get_extracted_from_markdown_page_content()
 663     {
 664         $this->asEditor();
 665         $page = $this->entities->page();
 666
 667         $this->put($page->getUrl(), [
 668             'name'     => $page->name, 'summary' => '',
 669             'markdown' => 'test ![test](data:image/jpeg;base64,' . $this->base64Jpeg . ')',
 670         ]);
 671
 672         $page->refresh();
 673         $this->assertStringMatchesFormat('%A<p%A>test <img src="http://localhost/uploads/images/gallery/%A.jpeg" alt="test">%A</p>%A', $page->html);
 674
 675         $matches = [];
 676         preg_match('/src="https:\/\/p.rizon.top:443\/http\/localhost(.*?)"/', $page->html, $matches);
 677         $imagePath = $matches[1];
 678         $imageFile = public_path($imagePath);
 679         $this->assertEquals(base64_decode($this->base64Jpeg), file_get_contents($imageFile));
 680
 681         $this->files->deleteAtRelativePath($imagePath);
 682     }
 683
 684     public function test_markdown_base64_extract_not_limited_by_pcre_limits()
 685     {
 686         $pcreBacktrackLimit = ini_get('pcre.backtrack_limit');
 687         $pcreRecursionLimit = ini_get('pcre.recursion_limit');
 688
 689         $this->asEditor();
 690         $page = $this->entities->page();
 691
 692         ini_set('pcre.backtrack_limit', '500');
 693         ini_set('pcre.recursion_limit', '500');
 694
 695         $content = str_repeat(base64_decode($this->base64Jpeg), 50);
 696         $base64Content = base64_encode($content);
 697
 698         $this->put($page->getUrl(), [
 699             'name'     => $page->name, 'summary' => '',
 700             'markdown' => 'test ![test](data:image/jpeg;base64,' . $base64Content . ') ![test](data:image/jpeg;base64,' . $base64Content . ')',
 701         ]);
 702
 703         $page->refresh();
 704         $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);
 705
 706         $matches = [];
 707         preg_match('/src="https:\/\/p.rizon.top:443\/http\/localhost(.*?)"/', $page->html, $matches);
 708         $imagePath = $matches[1];
 709         $imageFile = public_path($imagePath);
 710         $this->assertEquals($content, file_get_contents($imageFile));
 711
 712         $this->files->deleteAtRelativePath($imagePath);
 713         ini_set('pcre.backtrack_limit', $pcreBacktrackLimit);
 714         ini_set('pcre.recursion_limit', $pcreRecursionLimit);
 715     }
 716
 717     public function test_base64_images_within_markdown_blanked_if_not_supported_extension_for_extract()
 718     {
 719         $page = $this->entities->page();
 720
 721         $this->asEditor()->put($page->getUrl(), [
 722             'name'     => $page->name, 'summary' => '',
 723             'markdown' => 'test ![test](data:image/jiff;base64,' . $this->base64Jpeg . ')',
 724         ]);
 725
 726         $this->assertStringContainsString('<img src=""', $page->refresh()->html);
 727     }
 728
 729     public function test_base64_images_within_markdown_blanked_if_no_image_create_permission()
 730     {
 731         $editor = $this->users->editor();
 732         $page = $this->entities->page();
 733         $this->permissions->removeUserRolePermissions($editor, ['image-create-all']);
 734
 735         $this->actingAs($editor)->put($page->getUrl(), [
 736             'name' => $page->name,
 737             'markdown' => 'test ![test](data:image/jpeg;base64,' . $this->base64Jpeg . ')',
 738         ]);
 739
 740         $this->assertStringContainsString('<img src=""', $page->refresh()->html);
 741     }
 742
 743     public function test_base64_images_within_markdown_blanked_if_content_does_not_appear_like_an_image()
 744     {
 745         $page = $this->entities->page();
 746
 747         $imgContent = base64_encode('file://test/a/b/c');
 748         $this->asEditor()->put($page->getUrl(), [
 749             'name' => $page->name,
 750             'markdown' => 'test ![test](data:image/jpeg;base64,' . $imgContent . ')',
 751         ]);
 752
 753         $page->refresh();
 754         $this->assertStringContainsString('<img src=""', $page->refresh()->html);
 755     }
 756
 757     public function test_nested_headers_gets_assigned_an_id()
 758     {
 759         $page = $this->entities->page();
 760
 761         $content = '<table><tbody><tr><td><h5>Simple Test</h5></td></tr></tbody></table>';
 762         $this->asEditor()->put($page->getUrl(), [
 763             'name'    => $page->name,
 764             'html'    => $content,
 765         ]);
 766
 767         // The top level <table> node will get assign the bkmrk-simple-test id because the system will
 768         // take the node value of h5
 769         // So the h5 should get the bkmrk-simple-test-1 id
 770         $this->assertStringContainsString('<h5 id="bkmrk-simple-test-1">Simple Test</h5>', $page->refresh()->html);
 771     }
 772
 773     public function test_non_breaking_spaces_are_preserved()
 774     {
 775         $page = $this->entities->page();
 776
 777         $content = '<p>&nbsp;</p>';
 778         $this->asEditor()->put($page->getUrl(), [
 779             'name'    => $page->name,
 780             'html'    => $content,
 781         ]);
 782
 783         $this->assertStringContainsString('<p id="bkmrk-%C2%A0">&nbsp;</p>', $page->refresh()->html);
 784     }
 785
 786     public function test_page_save_with_many_headers_and_links_is_reasonable()
 787     {
 788         $page = $this->entities->page();
 789
 790         $content = '';
 791         for ($i = 0; $i < 500; $i++) {
 792             $content .= "<table><tbody><tr><td><h5 id='header-{$i}'>Simple Test</h5><a href='#header-{$i}'></a></td></tr></tbody></table>";
 793         }
 794
 795         $time = time();
 796         $this->asEditor()->put($page->getUrl(), [
 797             'name'    => $page->name,
 798             'html'    => $content,
 799         ])->assertRedirect();
 800
 801         $timeElapsed = time() - $time;
 802         $this->assertLessThan(3, $timeElapsed);
 803     }
 804 }