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Merged
merged 7 commits into from
Mar 25, 2021
Merged

john/hig-231-block-recording-on-all-text-nodes #30

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dae4316
Adds text randomization
Mar 24, 2021
028df9a
Update blocked styles
Mar 24, 2021
0012708
Add privacy mode
Mar 24, 2021
cf56b80
Don't record images
Mar 24, 2021
2a17f3f
v0.10.0
Mar 24, 2021
f5e37e1
Rename flag to enableStrictPrivacy
Mar 25, 2021
9ab9619
Set redacted style on replayer side
Mar 25, 2021
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Adds text randomization
  • Loading branch information
John Pham committed Mar 24, 2021
commit dae4316e527a5adc318a63756c98a1246d1ca3b5
31 changes: 29 additions & 2 deletions src/snapshot/snapshot.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -215,6 +215,8 @@ function serializeNode(
maskInputOptions = {},
recordCanvas,
} = options;
const isStrictPrivacyMode = true;

switch (n.nodeType) {
case n.DOCUMENT_NODE:
return {
Expand All @@ -229,7 +231,7 @@ function serializeNode(
systemId: (n as DocumentType).systemId,
};
case n.ELEMENT_NODE:
const needBlock = _isBlockedElement(
let needBlock = _isBlockedElement(
n as HTMLElement,
blockClass,
blockSelector,
Expand Down Expand Up @@ -318,13 +320,14 @@ function serializeNode(
if ((n as HTMLElement).scrollTop) {
attributes.rr_scrollTop = (n as HTMLElement).scrollTop;
}
if (needBlock) {
if (needBlock || (tagName === 'img' && isStrictPrivacyMode)) {
const { width, height } = (n as HTMLElement).getBoundingClientRect();
attributes = {
class: attributes.class,
rr_width: `${width}px`,
rr_height: `${height}px`,
};
needBlock = true;
}
return {
type: NodeType.Element,
Expand All @@ -341,11 +344,35 @@ function serializeNode(
n.parentNode && (n.parentNode as HTMLElement).tagName;
let textContent = (n as Text).textContent;
const isStyle = parentTagName === 'STYLE' ? true : undefined;
/** Determines if this node has been handled already. */
let textContentHandled = false;
if (isStyle && textContent) {
textContent = absoluteToStylesheet(textContent, getHref());
textContentHandled = true;
}
if (parentTagName === 'SCRIPT') {
textContent = 'SCRIPT_PLACEHOLDER';
textContentHandled = true;
}

// Randomizes the text content to a string of the same length.
if (isStrictPrivacyMode && !textContentHandled && parentTagName) {
const IGNORE_TAG_NAMES = new Set([
'HEAD',
'TITLE',
'STYLE',
'SCRIPT',
'HTML',
'BODY',
'NOSCRIPT',
]);
if (!IGNORE_TAG_NAMES.has(parentTagName)) {
textContent =
textContent
?.split(' ')
.map((word) => Math.random().toString(20).substr(2, word.length))
.join(' ') || '';
}
}
return {
type: NodeType.Text,
Expand Down