[FIX] Special Characters in Messages show in Unicode

[AlexanderKanakis]

Closes: WideChat/Rocket.Chat#1308

Reverts: RocketChat#701

[ear-dev]

@AlexanderKanakis I tested this and it looks good. We can merge after @Shailesh351 takes a quick look. Thanks.

[csmith14]

This looks like it doesn't address pasted/dropped text, as the handlers for those actions still use the parse function:

• https://github.com/WideChat/Rocket.Chat.Livechat/blob/master/src/components/Composer/index.js#L79
• https://github.com/WideChat/Rocket.Chat.Livechat/blob/master/src/components/Composer/index.js#L102

[ear-dev]

This looks like it doesn't address pasted/dropped text, as the handlers for those actions still use the parse function:

• https://github.com/WideChat/Rocket.Chat.Livechat/blob/master/src/components/Composer/index.js#L79
• https://github.com/WideChat/Rocket.Chat.Livechat/blob/master/src/components/Composer/index.js#L102

I did just test cut and paste into a widget with this fix and it seemed to work fine. I used "I'm testing" because I know that apostrophe was a problem. Are there other good characters I can test?

[csmith14]

Huh, okay maybe those handlers don't do exactly what their name implies?
Here's the character map used for replacements:

const escapeMap = {
	'&': '&',
	'<': '&lt;',
	'>': '&gt;',
	'"': '&quot;',
	'\'': '&#x27;',
	'`': '&#x60;',
};

[AlexanderKanakis]

New commit will deal the the issue @csmith14 found. Made sure that the text is still parsed upon submission, so it is clean.

[ear-dev]

I tested the latest and it looks good to me.... @csmith14 ?