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core/lib/presentation/utils/html_transformer/dom/add_target_blank_in_tag_a_transformers.dart
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core/lib/presentation/utils/html_transformer/dom/add_tooltip_link_transformers.dart
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core/lib/presentation/utils/html_transformer/dom/sanitize_tag_a_in_html_transformers.dart
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import 'package:core/data/network/dio_client.dart'; | ||
import 'package:core/presentation/utils/html_transformer/base/dom_transformer.dart'; | ||
import 'package:core/presentation/utils/html_transformer/sanitize_url.dart'; | ||
import 'package:core/utils/html/html_template.dart'; | ||
import 'package:html/dom.dart'; | ||
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class SanitizeTagAInHtmlTransformer extends DomTransformer { | ||
final _sanitizeUrl = SanitizeUrl(); | ||
final bool useTooltip; | ||
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SanitizeTagAInHtmlTransformer({this.useTooltip = false}); | ||
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@override | ||
Future<void> process({ | ||
required Document document, | ||
required DioClient dioClient, | ||
Map<String, String>? mapUrlDownloadCID, | ||
}) async { | ||
final elements = document.querySelectorAll('a'); | ||
await Future.wait(elements.map((element) async { | ||
_addToolTipWhenHoverLink(element); | ||
_addBlankForTargetProperty(element); | ||
_addNoReferrerForRelProperty(element); | ||
})); | ||
} | ||
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void _addToolTipWhenHoverLink(Element element) { | ||
final url = element.attributes['href'] ?? ''; | ||
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final urlSanitized = _sanitizeUrl.process(url); | ||
if (urlSanitized.isEmpty) { | ||
return; | ||
} | ||
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element.attributes['href'] = urlSanitized; | ||
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final text = element.text; | ||
final children = element.children; | ||
if (children.isEmpty && text.isNotEmpty) { | ||
final innerHtml = element.innerHtml; | ||
final tagClass = element.attributes['class']; | ||
if (tagClass != null) { | ||
element.attributes['class'] = '$tagClass ${HtmlTemplate.nameClassToolTip}'; | ||
} else { | ||
element.attributes['class'] = HtmlTemplate.nameClassToolTip; | ||
} | ||
element.innerHtml = '$innerHtml <span class="tooltiptext">$url</span>'; | ||
} | ||
} | ||
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void _addBlankForTargetProperty(Element element) { | ||
element.attributes['target'] = '_blank'; | ||
} | ||
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void _addNoReferrerForRelProperty(Element element) { | ||
final rel = element.attributes['rel']; | ||
if (rel == null || (!rel.contains('noopener') && !rel.contains('noreferrer'))) { | ||
element.attributes['rel'] = 'noreferrer'; | ||
} | ||
} | ||
} |
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