+ public function test_page_includes_rendered_on_book_export()
+ {
+ $page = Page::query()->first();
+ $secondPage = Page::query()
+ ->where('book_id', '!=', $page->book_id)
+ ->first();
+
+ $content = '<p id="bkmrk-meow">my cat is awesome and scratchy</p>';
+ $secondPage->html = $content;
+ $secondPage->save();
+
+ $page->html = "{{@{$secondPage->id}#bkmrk-meow}}";
+ $page->save();
+
+ $this->asEditor();
+ $htmlContent = $this->get($page->book->getUrl('/export/html'));
+ $htmlContent->assertSee('my cat is awesome and scratchy');
+ }
+
+ public function test_page_content_scripts_removed_by_default()
+ {
+ $this->asEditor();
+ $page = Page::first();
+ $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->assertSee('abc123abc123');
+ }
+
+ public function test_more_complex_content_script_escaping_scenarios()
+ {
+ $checks = [
+ "<p>Some script</p><script>alert('cat')</script>",
+ "<div><div><div><div><p>Some script</p><script>alert('cat')</script></div></div></div></div>",
+ "<p>Some script<script>alert('cat')</script></p>",
+ "<p>Some script <div><script>alert('cat')</script></div></p>",
+ "<p>Some script <script><div>alert('cat')</script></div></p>",
+ "<p>Some script <script><div>alert('cat')</script><script><div>alert('cat')</script></p><script><div>alert('cat')</script>",
+ ];
+
+ $this->asEditor();
+ $page = Page::first();
+
+ foreach ($checks as $check) {
+ $page->html = $check;
+ $page->save();
+
+ $pageView = $this->get($page->getUrl());
+ $pageView->assertStatus(200);
+ $pageView->assertElementNotContains('.page-content', '<script>');
+ $pageView->assertElementNotContains('.page-content', '</script>');
+ }
+
+ }
+
+ public function test_iframe_js_and_base64_urls_are_removed()
+ {
+ $checks = [
+ '<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=" data:text/html;base64,PHNjcmlwdD5hbGVydCgnaGVsbG8nKTwvc2NyaXB0Pg==" frameborder="0"></iframe>',
+ '<iframe srcdoc="<script>window.alert(document.cookie)</script>"></iframe>'
+ ];
+
+ $this->asEditor();
+ $page = Page::first();
+
+ foreach ($checks as $check) {
+ $page->html = $check;
+ $page->save();
+
+ $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');
+ }
+
+ }
+
+ 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>'
+ ];
+
+ $this->asEditor();
+ $page = Page::first();
+
+ foreach ($checks as $check) {
+ $page->html = $check;
+ $page->save();
+
+ $pageView = $this->get($page->getUrl());
+ $pageView->assertStatus(200);
+ $pageView->assertElementNotContains('.page-content', '<a id="xss">');
+ $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>',
+ '<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>'
+ ];
+
+ $this->asEditor();
+ $page = Page::first();
+
+ foreach ($checks as $check) {
+ $page->html = $check;
+ $page->save();
+
+ $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:');
+ }
+ }
+
+ public function test_metadata_redirects_are_removed()
+ {
+ $checks = [
+ '<meta http-equiv="refresh" content="0; url=//external_url">',
+ ];
+
+ $this->asEditor();
+ $page = Page::first();
+
+ foreach ($checks as $check) {
+ $page->html = $check;
+ $page->save();
+
+ $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');
+ }
+ }
+ public function test_page_inline_on_attributes_removed_by_default()