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| 1 | import re | |
| 2 | ||
| 3 | # Taken from http://tfletcher.com/lib/rfc822.py | |
| 4 | qtext = '[^\\x0d\\x22\\x5c\\x80-\\xff]' | |
| 5 | dtext = '[^\\x0d\\x5b-\\x5d\\x80-\\xff]' | |
| 6 | atom = '[^\\x00-\\x20\\x22\\x28\\x29\\x2c\\x2e\\x3a-\\x3c\\x3e\\x40\\x5b-\\x5d\\x7f-\\xff]+' | |
| 7 | quoted_pair = '\\x5c[\\x00-\\x7f]' | |
| 8 | domain_literal = "\\x5b(?:%s|%s)*\\x5d" % (dtext, quoted_pair) | |
| 9 | quoted_string = "\\x22(?:%s|%s)*\\x22" % (qtext, quoted_pair) | |
| 10 | domain_ref = atom | |
| 11 | sub_domain = "(?:%s|%s)" % (domain_ref, domain_literal) | |
| 12 | word = "(?:%s|%s)" % (atom, quoted_string) | |
| 13 | domain = "%s(?:\\x2e%s)*" % (sub_domain, sub_domain) | |
| 14 | local_part = "%s(?:\\x2e%s)*" % (word, word) | |
| 15 | ||
| 16 | # Adding maximum length restrictions | |
| 17 | addr_spec = "(?=^.{1,256}$)(?=.{1,64}@)%s\\x40%s" % (local_part, domain)
| |
| 18 | ||
| 19 | email_address = re.compile('\A%s\Z' % addr_spec)
| |
| 20 | ||
| 21 | if __name__ == '__main__': | |
| 22 | - | list_of_good = ['support@onlinesurveys.ac.uk', |
| 22 | + | list_of_good = ['somewhere@over.the.rainbow', |
| 23 | - | 'SUPPORT@onlinesurveys.ac.uk', |
| 23 | + | 'SOMEWHERE@over.the.rainbow', |
| 24 | - | 'SUPPORT@ONLINESURVEYS.AC.UK', |
| 24 | + | 'SOMEWHERE@OVER.THE.RAINBOW', |
| 25 | - | 'foo@example.com', |
| 25 | + | 'foo@example.com', |
| 26 | - | 'paul@io', |
| 26 | + | 'paul@io', |
| 27 | - | 'foo@bar.example.com', |
| 27 | + | 'foo@bar.example.com', |
| 28 | - | 'foo+bar@example.com', |
| 28 | + | 'foo+bar@example.com', |
| 29 | - | 'foo.bar@example.com', |
| 29 | + | 'foo.bar@example.com', |
| 30 | - | 'foo.bar@127.0.0.1', |
| 30 | + | 'foo.bar@127.0.0.1', |
| 31 | - | 'foo_bar@example.com', |
| 31 | + | 'foo_bar@example.com', |
| 32 | - | 'foo-bar@example.com', |
| 32 | + | 'foo-bar@example.com', |
| 33 | - | 'cal+henderson@iamcalx.com', |
| 33 | + | 'cal+henderson@iamcalx.com', |
| 34 | - | '"cal henderson"@iamcalx.com', |
| 34 | + | '"cal henderson"@iamcalx.com', |
| 35 | - | 'cal@[hello world].com', |
| 35 | + | 'cal@[hello world].com', |
| 36 | - | '"foo.bar.@.foo.com"@example.com', |
| 36 | + | '"foo.bar.@.foo.com"@example.com', |
| 37 | - | 'foo.bar.foo.bar.foo.bar.foo.bar.foo.bar.foo.bar.foo.bar@example.com'] |
| 37 | + | ('foo.bar'*9) + '@example.com']
|
| 38 | ||
| 39 | list_of_bad = ['supportonlinesurveys.ac.uk', | |
| 40 | 'foo..bar@example.com', | |
| 41 | '.foo@example.com', | |
| 42 | 'bar.@example.com', | |
| 43 | 'foo bar@example.com', | |
| 44 | 'bar@example com', | |
| 45 | 'bar@another example.com', | |
| 46 | 'foo@bar@test@example.com', | |
| 47 | # Local part can't exceed 64 chars | |
| 48 | - | 'foo.bar.foo.bar.foo.bar.foo.bar.foo.bar.foo.bar.foo.bar.foo.bar.foo.bar@example.com', |
| 48 | + | ('foo.bar'*10) + '@example.com',
|
| 49 | # Total can't exceed 256 | |
| 50 | - | 'foo.bar.foo.bar.foo.bar.bar@exampleexampleexampleexampleexampleexampleexampleexampleexampleexampleexampleexampleexampleexampleexampleexampleexampleexampleexampleexampleexampleexampleexampleexampleexampleexampleexampleexampleexampleexampleexampleexampleexampleexample.com'] |
| 50 | + | 'foo.bar.foo.bar.foo.bar.bar@' + ('example'*40)]
|
| 51 | ||
| 52 | for t in list_of_good: | |
| 53 | assert email_address.match(t) | |
| 54 | ||
| 55 | for t in list_of_bad: | |
| 56 | assert email_address.match(t) is None |
