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Injection.tsx 10KB

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  1. import React, {Component} from 'react';
  2. import {Text, View, ScrollView} from 'react-native';
  3. import WebView from 'react-native-webview';
  4. const HTML = `
  5. <!DOCTYPE html>
  6. <html>
  7. <head>
  8. <meta charset="utf-8">
  9. <meta name="viewport" content="width=device-width, initial-scale=1">
  10. <title>iframe test</title>
  11. </head>
  12. <body>
  13. <p style="">beforeContentLoaded on the top frame <span id="before_failed" style="display: inline-block;">failed</span><span id="before_succeeded" style="display: none;">succeeded</span>!</p>
  14. <p style="">afterContentLoaded on the top frame <span id="after_failed" style="display: inline-block;">failed</span><span id="after_succeeded" style="display: none;">succeeded</span>!</p>
  15. <iframe src="https://birchlabs.co.uk/linguabrowse/infopages/obsol/iframe.html?v=1" name="iframe_0" style="width: 100%; height: 25px;"></iframe>
  16. <iframe src="https://birchlabs.co.uk/linguabrowse/infopages/obsol/iframe2.html?v=1" name="iframe_1" style="width: 100%; height: 25px;"></iframe>
  17. <iframe src="https://www.ebay.co.uk" name="iframe_2" style="width: 100%; height: 25px;"></iframe>
  18. </body>
  19. </html>
  20. `;
  21. type Props = {};
  22. type State = {
  23. backgroundColor: string,
  24. };
  25. export default class Injection extends Component<Props, State> {
  26. state = {
  27. backgroundColor: '#FF00FF00'
  28. };
  29. render() {
  30. return (
  31. <ScrollView>
  32. <View style={{ }}>
  33. <View style={{ height: 400 }}>
  34. <WebView
  35. /**
  36. * This HTML is a copy of the hosted multi-frame JS injection test.
  37. * I have found that Android doesn't support beforeContentLoaded for a hosted HTML webpage, yet does for a static source.
  38. * The cause of this is unresolved.
  39. */
  40. // source={{ html: HTML }}
  41. source={{ uri: "https://birchlabs.co.uk/linguabrowse/infopages/obsol/rnw_iframe_test.html" }}
  42. automaticallyAdjustContentInsets={false}
  43. style={{backgroundColor:'#00000000'}}
  44. /* Must be populated in order for `messagingEnabled` to be `true` to activate the
  45. * JS injection user scripts, consistent with current behaviour. This is undesirable,
  46. * so needs addressing in a follow-up PR. */
  47. onMessage={() => {}}
  48. injectedJavaScriptBeforeContentLoadedForMainFrameOnly={false}
  49. injectedJavaScriptForMainFrameOnly={false}
  50. /* We set this property in each frame */
  51. injectedJavaScriptBeforeContentLoaded={`
  52. console.log("executing injectedJavaScriptBeforeContentLoaded... " + (new Date()).toString());
  53. if(typeof window.top.injectedIframesBeforeContentLoaded === "undefined"){
  54. window.top.injectedIframesBeforeContentLoaded = [];
  55. }
  56. window.self.colourToUse = "orange";
  57. if(window.self === window.top){
  58. console.log("Was window.top. window.frames.length is:", window.frames.length);
  59. window.self.numberOfFramesAtBeforeContentLoaded = window.frames.length;
  60. function declareSuccessOfBeforeContentLoaded(head){
  61. var style = window.self.document.createElement('style');
  62. style.type = 'text/css';
  63. style.innerHTML = "#before_failed { display: none !important; }#before_succeeded { display: inline-block !important; }";
  64. head.appendChild(style);
  65. }
  66. const head = (window.self.document.head || window.self.document.getElementsByTagName('head')[0]);
  67. if(head){
  68. declareSuccessOfBeforeContentLoaded(head);
  69. } else {
  70. window.self.document.addEventListener("DOMContentLoaded", function (event) {
  71. const head = (window.self.document.head || window.self.document.getElementsByTagName('head')[0]);
  72. declareSuccessOfBeforeContentLoaded(head);
  73. });
  74. }
  75. } else {
  76. window.top.injectedIframesBeforeContentLoaded.push(window.self.name);
  77. console.log("wasn't window.top.");
  78. console.log("wasn't window.top. Still going...");
  79. }
  80. `}
  81. /* We read the colourToUse property in each frame to recolour each frame */
  82. injectedJavaScript={`
  83. console.log("executing injectedJavaScript... " + (new Date()).toString());
  84. if(typeof window.top.injectedIframesAfterContentLoaded === "undefined"){
  85. window.top.injectedIframesAfterContentLoaded = [];
  86. }
  87. if(window.self.colourToUse){
  88. window.self.document.body.style.backgroundColor = window.self.colourToUse;
  89. } else {
  90. window.self.document.body.style.backgroundColor = "cyan";
  91. }
  92. if(window.self === window.top){
  93. function declareSuccessOfAfterContentLoaded(head){
  94. var style = window.self.document.createElement('style');
  95. style.type = 'text/css';
  96. style.innerHTML = "#after_failed { display: none !important; }#after_succeeded { display: inline-block !important; }";
  97. head.appendChild(style);
  98. }
  99. declareSuccessOfAfterContentLoaded(window.self.document.head || window.self.document.getElementsByTagName('head')[0]);
  100. // var numberOfFramesAtBeforeContentLoadedEle = document.createElement('p');
  101. // numberOfFramesAtBeforeContentLoadedEle.textContent = "Number of iframes upon the main frame's beforeContentLoaded: " +
  102. // window.self.numberOfFramesAtBeforeContentLoaded;
  103. // var numberOfFramesAtAfterContentLoadedEle = document.createElement('p');
  104. // numberOfFramesAtAfterContentLoadedEle.textContent = "Number of iframes upon the main frame's afterContentLoaded: " + window.frames.length;
  105. // numberOfFramesAtAfterContentLoadedEle.id = "numberOfFramesAtAfterContentLoadedEle";
  106. var namedFramesAtBeforeContentLoadedEle = document.createElement('p');
  107. namedFramesAtBeforeContentLoadedEle.textContent = "Names of iframes that called beforeContentLoaded: " + JSON.stringify(window.top.injectedIframesBeforeContentLoaded || []);
  108. namedFramesAtBeforeContentLoadedEle.id = "namedFramesAtBeforeContentLoadedEle";
  109. var namedFramesAtAfterContentLoadedEle = document.createElement('p');
  110. namedFramesAtAfterContentLoadedEle.textContent = "Names of iframes that called afterContentLoaded: " + JSON.stringify(window.top.injectedIframesAfterContentLoaded);
  111. namedFramesAtAfterContentLoadedEle.id = "namedFramesAtAfterContentLoadedEle";
  112. // document.body.appendChild(numberOfFramesAtBeforeContentLoadedEle);
  113. // document.body.appendChild(numberOfFramesAtAfterContentLoadedEle);
  114. document.body.appendChild(namedFramesAtBeforeContentLoadedEle);
  115. document.body.appendChild(namedFramesAtAfterContentLoadedEle);
  116. } else {
  117. window.top.injectedIframesAfterContentLoaded.push(window.self.name);
  118. window.top.document.getElementById('namedFramesAtAfterContentLoadedEle').textContent = "Names of iframes that called afterContentLoaded: " + JSON.stringify(window.top.injectedIframesAfterContentLoaded);
  119. }
  120. `}
  121. />
  122. </View>
  123. </View>
  124. <Text>This test presents three iframes: iframe_0 (yellow); iframe_1 (pink); and iframe_2 (transparent, because its 'X-Frame-Options' is set to 'SAMEORIGIN').</Text>
  125. <Text>Before injection, the main frame's background is the browser's default value (transparent or white) and each frame has its natural colour.</Text>
  126. {/*<Text>1a) At injection time "beforeContentLoaded", a variable will be set in each frame to set 'orange' as the "colour to be used".</Text>*/}
  127. {/*<Text>1b) Also upon "beforeContentLoaded", a style element to change the text "beforeContentLoaded failed" -> "beforeContentLoaded succeeded" will be applied as soon as the head has loaded.</Text>*/}
  128. {/*<Text>2a) At injection time "afterContentLoaded", that variable will be read – if present, the colour orange will be injected into all frames. Otherwise, cyan.</Text>*/}
  129. {/*<Text>2b) Also upon "afterContentLoaded", a style element to change the text "afterContentLoaded failed" -> "afterContentLoaded succeeded" will be applied as soon as the head has loaded.</Text>*/}
  130. <Text>✅ If the main frame becomes orange, then top-frame injection both beforeContentLoaded and afterContentLoaded is supported.</Text>
  131. <Text>✅ If iframe_0, and iframe_1 become orange, then multi-frame injection beforeContentLoaded and afterContentLoaded is supported.</Text>
  132. <Text>✅ If the two texts say "beforeContentLoaded on the top frame succeeded!" and "afterContentLoaded on the top frame succeeded!", then both injection times are supported at least on the main frame.</Text>
  133. <Text>❌ If either of the two iframes become coloured cyan, then for that given frame, JS injection succeeded after the content loaded, but didn't occur before the content loaded.</Text>
  134. <Text>❌ If "Names of iframes that called beforeContentLoaded: " is [], then see above.</Text>
  135. <Text>❌ If "Names of iframes that called afterContentLoaded: " is [], then afterContentLoaded is not supported in iframes.</Text>
  136. <Text>❌ If the main frame becomes coloured cyan, then JS injection succeeded after the content loaded, but didn't occur before the content loaded.</Text>
  137. <Text>❌ If the text "beforeContentLoaded on the top frame failed" remains unchanged, then JS injection has failed on the main frame before the content loaded.</Text>
  138. <Text>❌ If the text "afterContentLoaded on the top frame failed" remains unchanged, then JS injection has failed on the main frame after the content loaded.</Text>
  139. <Text>❌ If the iframes remain their original colours (yellow and pink), then multi-frame injection is not supported at all.</Text>
  140. </ScrollView>
  141. );
  142. }
  143. }