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465831175a
Summary: Autolinker is a great open source project but it attempts to parse HTML with regexp, is quite slow, and hangs on specific emails https://github.com/nylas/N1/issues/1540 This is super bad, and also super unnecessary. I think this should do the trick. Note: I changed the urlRegex in our Utils to be much more liberal. It now matches anything that looks like a URL, not just things with the http:// and https:// prefixes. It's used in the LinkEditor and onboarding screen (detecting auth errors with urls) and I think it should be ok? Test Plan: Need to write some tests Reviewers: evan, juan Reviewed By: juan Differential Revision: https://phab.nylas.com/D2725
120 lines
3.3 KiB
JavaScript
120 lines
3.3 KiB
JavaScript
import React from 'react';
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import _ from "underscore";
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import {EventedIFrame} from 'nylas-component-kit';
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import {Utils, QuotedHTMLTransformer} from 'nylas-exports';
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import {autolink} from './autolinker';
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import EmailFrameStylesStore from './email-frame-styles-store';
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export default class EmailFrame extends React.Component {
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static displayName = 'EmailFrame';
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static propTypes = {
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content: React.PropTypes.string.isRequired,
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showQuotedText: React.PropTypes.bool,
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};
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componentDidMount() {
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this._mounted = true;
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this._writeContent();
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this._unlisten = EmailFrameStylesStore.listen(this._writeContent);
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}
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shouldComponentUpdate(nextProps, nextState) {
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return (!Utils.isEqualReact(nextProps, this.props) ||
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!Utils.isEqualReact(nextState, this.state));
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}
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componentDidUpdate() {
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this._writeContent();
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}
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componentWillUnmount() {
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this._mounted = false;
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if (this._unlisten) {
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this._unlisten();
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}
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}
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_emailContent = () => {
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// When showing quoted text, always return the pure content
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if (this.props.showQuotedText) {
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return this.props.content;
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}
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return QuotedHTMLTransformer.removeQuotedHTML(this.props.content, {
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keepIfWholeBodyIsQuote: true,
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});
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}
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_writeContent = () => {
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this._lastComputedHeight = 0;
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const domNode = React.findDOMNode(this);
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const doc = domNode.contentDocument;
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if (!doc) { return; }
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doc.open();
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// NOTE: The iframe must have a modern DOCTYPE. The lack of this line
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// will cause some bizzare non-standards compliant rendering with the
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// message bodies. This is particularly felt with <table> elements use
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// the `border-collapse: collapse` css property while setting a
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// `padding`.
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doc.write("<!DOCTYPE html>");
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const styles = EmailFrameStylesStore.styles();
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if (styles) {
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doc.write(`<style>${styles}</style>`);
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}
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doc.write(`<div id='inbox-html-wrapper'>${this._emailContent()}</div>`);
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doc.close();
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autolink(doc);
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// Notify the EventedIFrame that we've replaced it's document (with `open`)
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// so it can attach event listeners again.
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this.refs.iframe.documentWasReplaced();
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domNode.height = '0px';
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this._setFrameHeight();
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}
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_getFrameHeight = (doc) => {
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if (doc && doc.body) {
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return doc.body.scrollHeight;
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}
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if (doc && doc.documentElement) {
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return doc.documentElement.scrollHeight;
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}
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return 0;
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}
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_setFrameHeight = () => {
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if (!this._mounted) {
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return;
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}
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const domNode = React.findDOMNode(this);
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const height = this._getFrameHeight(domNode.contentDocument);
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// Why 5px? Some emails have elements with a height of 100%, and then put
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// tracking pixels beneath that. In these scenarios, the scrollHeight of the
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// message is always <100% + 1px>, which leads us to resize them constantly.
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// This is a hack, but I'm not sure of a better solution.
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if (Math.abs(height - this._lastComputedHeight) > 5) {
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domNode.height = `${height}px`;
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this._lastComputedHeight = height;
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}
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if (domNode.contentDocument.readyState !== 'complete') {
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_.defer(()=> this._setFrameHeight());
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}
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}
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render() {
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return (
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<EventedIFrame
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ref="iframe"
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seamless="seamless"
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searchable
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onResize={this._setFrameHeight}
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/>
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);
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}
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}
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