Allow hostnames with underscores when parsing URLs

[sebthom]

Description:

Related issue (if applicable): #323

Checklist

• The code change is tested and works locally.
• There is no commented out code in this PR.
• No lint errors (use flake8)
• 100% test coverage

[caronc]

First off; thank you so much for taking the initiative to do a merge. That's really awesome of you 👍

Can you also have a peak at the GET_EMAIL_RE in the utils.py as well? It looks like this:

GET_EMAIL_RE = re.compile(
    r'((?P<name>[^:<]+)?[:<\s]+)?'
    r'(?P<full_email>((?P<label>[^+]+)\+)?'
    r'(?P<email>(?P<userid>[a-z0-9$%=_~-]+'
    r'(?:\.[a-z0-9$%+=_~-]+)'
    r'*)@(?P<domain>('
    r'(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+'
    r'[a-z0-9](?:[a-z0-9-]*[a-z0-9]))|'
    r'[a-z0-9][a-z0-9-]{5,})))'
    r'\s*>?', re.IGNORECASE)

I guess it should probably change to:

GET_EMAIL_RE = re.compile(
    r'((?P<name>[^:<]+)?[:<\s]+)?'
    r'(?P<full_email>((?P<label>[^+]+)\+)?'
    r'(?P<email>(?P<userid>[a-z0-9$%=_~-]+'
    r'(?:\.[a-z0-9$%+=_~-]+)'
    r'*)@(?P<domain>('
    r'(?:[a-z0-9](?:[a-z0-9_-]*[a-z0-9])?\.)+'
    r'[a-z0-9](?:[a-z0-9_-]*[a-z0-9]))|'
    r'[a-z0-9][a-z0-9_-]{5,})))'
    r'\s*>?', re.IGNORECASE)

I think that's the only other spot...

[codecov-io]

Codecov Report

Merging #324 (d047d85) into master (2c2722f) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##            master      #324   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           85        85           
  Lines        10626     10626           
  Branches      1772      1772           
=========================================
  Hits         10626     10626           

Impacted Files	Coverage Δ
apprise/utils.py	100.00% <ø> (ø)

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[caronc]

Thank you for adding testing! That's much appreciated! Just 2 small changes is all I'd ask, otherwise it looks great!

[caronc]

Great work; thank you very much for the PR! 🎉 👍