login using email and case-insensitive username added

[pratapaditya1997]

#40
I made this flow on top of your existing CheckLogin flow so that it will never break your existing code. I have kept the code as generic as possible. I tested this on my local and it worked fine. Please check on your end too

[xalanq]

I think it's too complicated. There is a simpler way to do that.

match, err := regexp.Match(fmt.Sprintf(`handle = "%v"`, username), body)

=>

match, err := regexp.Match(fmt.Sprintf(`(?i)handle = "%v"`, username), body)

https://stackoverflow.com/questions/15326421/how-do-i-do-a-case-insensitive-regular-expression-in-go

[pratapaditya1997]

I don't think it will work while logging in with the user email which is also a requirement.

[xalanq]

Thanks for your work! I'll handler it on this weekend or next weekend.

[xalanq]

Fix it by

match, err := regexp.Match(`handle = "[\s\S]+?"`, body)