How to use the pyisemail.diagnosis.DeprecatedDiagnosis function in pyIsEmail
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michaelherold / pyIsEmail / tests / validators / __init__.py View on Github 
elif tag == "DNSWARN":
d_class = DNSDiagnosis
elif tag == "VALID":
d_class = ValidDiagnosis
elif tag == "RFC5321":
d_class = RFC5321Diagnosis
elif tag == "VALID":
d_class = ValidDiagnosis
elif tag == "RFC5321":
d_class = RFC5321Diagnosis
elif tag == "RFC5322":
d_class = RFC5322Diagnosis
elif tag == "CFWS":
d_class = CFWSDiagnosis
elif tag == "DEPREC":
d_class = DeprecatedDiagnosis
else:
d_class = ""
return d_class#
# obs-FWS = 1*([CRLF] WSP)
if token_prior == Char.CR:
if token == Char.CR:
# Fatal error
return_status.append(
InvalidDiagnosis('FWS_CRLF_X2'))
break
if crlf_count != -1:
crlf_count += 1
if crlf_count > 1:
# Multiple folds = obsolete FWS
return_status.append(
DeprecatedDiagnosis('FWS'))
else:
crlf_count = 1
# Skip simulates the use of ++ operator if the latter
# check doesn't short-circuit
if token == Char.CR:
skip = True
if (i+1 == raw_length or
to_char(address[i+1]) != Char.LF):
return_status.append(InvalidDiagnosis('CR_NO_LF'))
break
elif token in [Char.SP, Char.HTAB]:
pass
else:
if token_prior == Char.CR:# obs-NO-WS-CTL = %d1-8 / ; US-ASCII control
# %d11 / ; characters that
# %d12 / ; do not include
# %d14-31 / ; the CR, LF, and
# ; white space
# ; characters
o = ord(token)
if o > 127 or o == 0 or o == 10:
# Fatal error
return_status.append(
InvalidDiagnosis('EXPECTING_CTEXT'))
break
elif o < 32 or o == 127:
return_status.append(DeprecatedDiagnosis('CTEXT'))
# -------------------------------------------------------
# Folding White Space (FWS)
# -------------------------------------------------------
elif context == Context.FWS:
# http://tools.ietf.org/html/rfc5322#section-3.2.2
# FWS = ([*WSP CRLF] 1*WSP) / obs-FWS
# ; Folding white space
#
# But note the erratum:
# http://www.rfc-editor.org/errata_search.php?rfc=5322&eid=1908
# In the obsolete syntax, any amount of folding white
# space MAY be inserted where the obs-FWS rule is
# allowed. This creates the possibility of having two
# consecutive "folds" in a line, and therefore the
# possibility that a line which makes up a folded headerRFC5322Diagnosis('LOCAL_TOOLONG'))
# http://tools.ietf.org/html/rfc5322#section-3.4.1
# Comments and folding white space
# SHOULD NOT be used around the "@" in the addr-spec.
#
# http://tools.ietf.org/html/rfc2119
# 4. SHOULD NOT This phrase, or the phrase "NOT
# RECOMMENDED" mean that there may exist valid
# reasons in particular circumstances when the
# particular behavior is acceptable or even useful,
# but the full implications should be understood and
# the case carefully weighed before implementing any
# behavior described with this label.
elif context_prior in [Context.COMMENT, Context.FWS]:
return_status.append(
DeprecatedDiagnosis('CFWS_NEAR_AT'))
# Clear everything down for the domain parsing
context = Context.DOMAIN
context_stack = []
element_count = 0
element_len = 0
# CFWS can only appear at the end of the element
end_or_die = False
# atext
else:
# http://tools.ietf.org/html/rfc5322#section-3.2.3
# atext = ALPHA / DIGIT / ; Printable US-ASCII
# "!" / "#" / ; characters not
# "$" / "%" / ; including specials.
# "&" / "'" / ; Used for atoms.
# "*" / "+" /end_or_die = False
element_len = 0
element_count += 1
parse_data[Context.LOCALPART] += token
atom_list[Context.LOCALPART].append('')
elif token == Char.DQUOTE:
if element_len == 0:
# The entire local-part can be a quoted string for
# RFC 5321. If it's just one atom that is quoted
# then it's an RFC 5322 obsolete form
if element_count == 0:
return_status.append(
RFC5321Diagnosis('QUOTEDSTRING'))
else:
return_status.append(
DeprecatedDiagnosis('LOCALPART'))
parse_data[Context.LOCALPART] += token
atom_list[Context.LOCALPART][element_count] += token
element_len += 1
end_or_die = True
context_stack.append(context)
context = Context.QUOTEDSTRING
else:
# Fatal error
return_status.append(
InvalidDiagnosis('EXPECTING_ATEXT'))
# Folding White Space (FWS)
elif token in [Char.CR, Char.SP, Char.HTAB]:
# Skip simulates the use of ++ operator if the latter
# check doesn't short-circuit
if token == Char.CR:# validator. The conclusion I have reached is this:
# "addressing information" must comply with RFC 5321 (and
# in turn RFC 1035), anything that is "semantically
# invisible" must comply only with RFC 5322.
# Comment
if token == Char.OPENPARENTHESIS:
if element_len == 0:
# Comments at the start of the domain are
# deprecated in the text
# Comments at the start of a subdomain are
# obs-domain
# (http://tools.ietf.org/html/rfc5322#section-3.4.1)
if element_count == 0:
return_status.append(
DeprecatedDiagnosis('CFWS_NEAR_AT'))
else:
return_status.append(
DeprecatedDiagnosis('COMMENT'))
else:
return_status.append(CFWSDiagnosis('COMMENT'))
# We can't start a comment in the middle of an
# element, so this better be the end
end_or_die = True
context_stack.append(context)
context = Context.COMMENT
# Next dot-atom element
elif token == Char.DOT:
if element_len == 0:
# Another dot, already? Fatal error
if element_count == 0:# invisible" must comply only with RFC 5322.
# Comment
if token == Char.OPENPARENTHESIS:
if element_len == 0:
# Comments at the start of the domain are
# deprecated in the text
# Comments at the start of a subdomain are
# obs-domain
# (http://tools.ietf.org/html/rfc5322#section-3.4.1)
if element_count == 0:
return_status.append(
DeprecatedDiagnosis('CFWS_NEAR_AT'))
else:
return_status.append(
DeprecatedDiagnosis('COMMENT'))
else:
return_status.append(CFWSDiagnosis('COMMENT'))
# We can't start a comment in the middle of an
# element, so this better be the end
end_or_die = True
context_stack.append(context)
context = Context.COMMENT
# Next dot-atom element
elif token == Char.DOT:
if element_len == 0:
# Another dot, already? Fatal error
if element_count == 0:
return_status.append(
InvalidDiagnosis('DOT_START'))
else:# obs-qtext = obs-NO-WS-CTL
#
# obs-NO-WS-CTL = %d1-8 / ; US-ASCII control
# %d11 / ; characters that do
# %d12 / ; not include the CR,
# %d14-31 / ; LF, and white space
# %d127 ; characters
o = ord(token)
if o > 127 or o == 0 or o == 10:
# Fatal error
return_status.append(
InvalidDiagnosis('EXPECTING_QTEXT'))
elif o < 32 or o == 127:
return_status.append(
DeprecatedDiagnosis('QTEXT'))
parse_data[Context.LOCALPART] += token
atom_list[Context.LOCALPART][element_count] += token
element_len += 1
# -------------------------------------------------------
# Quoted pair
# -------------------------------------------------------
elif context == Context.QUOTEDPAIR:
# http://tools.ietf.org/html/rfc5322#section-3.2.1
# quoted-pair = ("\" (VCHAR / WSP)) / obs-qp
#
# VCHAR = %d33-126 ; visible (printing)
# ; characters
#
# WSP = SP / HTAB ; white space
#skip = True
if i+1 == raw_length or (to_char(address[i + 1]) !=
Char.LF):
# Fatal error
return_status.append(
InvalidDiagnosis('CR_NO_LF'))
break
if element_len == 0:
if element_count == 0:
return_status.append(
DeprecatedDiagnosis('CFWS_NEAR_AT'))
else:
return_status.append(
DeprecatedDiagnosis('FWS'))
else:
return_status.append(CFWSDiagnosis('FWS'))
# We can't start FWS in the middle of an element,
# so this better be the end
end_or_die = True
context_stack.append(context)
context = Context.FWS
token_prior = token
# atext
else:
# RFC 5322 allows any atext...
# http://tools.ietf.org/html/rfc5322#section-3.2.3
# atext = ALPHA / DIGIT / ; Printable US-ASCII
# "!" / "#" / ; characters not
# "$" / "%" / ; including specials.
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