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Diffstat (limited to 'libs/oauthlib/uri_validate.py')
| -rw-r--r-- | libs/oauthlib/uri_validate.py | 216 |
1 files changed, 216 insertions, 0 deletions
diff --git a/libs/oauthlib/uri_validate.py b/libs/oauthlib/uri_validate.py new file mode 100644 index 000000000..ce8ea4029 --- /dev/null +++ b/libs/oauthlib/uri_validate.py @@ -0,0 +1,216 @@ +""" +Regex for URIs + +These regex are directly derived from the collected ABNF in RFC3986 +(except for DIGIT, ALPHA and HEXDIG, defined by RFC2234). + +They should be processed with re.VERBOSE. + +Thanks Mark Nottingham for this code - https://gist.github.com/138549 +""" +from __future__ import unicode_literals + +import re + +# basics + +DIGIT = r"[\x30-\x39]" + +ALPHA = r"[\x41-\x5A\x61-\x7A]" + +HEXDIG = r"[\x30-\x39A-Fa-f]" + +# pct-encoded = "%" HEXDIG HEXDIG +pct_encoded = r" %% %(HEXDIG)s %(HEXDIG)s" % locals() + +# unreserved = ALPHA / DIGIT / "-" / "." / "_" / "~" +unreserved = r"(?: %(ALPHA)s | %(DIGIT)s | \- | \. | _ | ~ )" % locals() + +# gen-delims = ":" / "/" / "?" / "#" / "[" / "]" / "@" +gen_delims = r"(?: : | / | \? | \# | \[ | \] | @ )" + +# sub-delims = "!" / "$" / "&" / "'" / "(" / ")" +# / "*" / "+" / "," / ";" / "=" +sub_delims = r"""(?: ! | \$ | & | ' | \( | \) | + \* | \+ | , | ; | = )""" + +# pchar = unreserved / pct-encoded / sub-delims / ":" / "@" +pchar = r"(?: %(unreserved)s | %(pct_encoded)s | %(sub_delims)s | : | @ )" % locals( +) + +# reserved = gen-delims / sub-delims +reserved = r"(?: %(gen_delims)s | %(sub_delims)s )" % locals() + + +# scheme + +# scheme = ALPHA *( ALPHA / DIGIT / "+" / "-" / "." ) +scheme = r"%(ALPHA)s (?: %(ALPHA)s | %(DIGIT)s | \+ | \- | \. )*" % locals() + + +# authority + +# dec-octet = DIGIT ; 0-9 +# / %x31-39 DIGIT ; 10-99 +# / "1" 2DIGIT ; 100-199 +# / "2" %x30-34 DIGIT ; 200-249 +# / "25" %x30-35 ; 250-255 +dec_octet = r"""(?: %(DIGIT)s | + [\x31-\x39] %(DIGIT)s | + 1 %(DIGIT)s{2} | + 2 [\x30-\x34] %(DIGIT)s | + 25 [\x30-\x35] + ) +""" % locals() + +# IPv4address = dec-octet "." dec-octet "." dec-octet "." dec-octet +IPv4address = r"%(dec_octet)s \. %(dec_octet)s \. %(dec_octet)s \. %(dec_octet)s" % locals( +) + +# h16 = 1*4HEXDIG +h16 = r"(?: %(HEXDIG)s ){1,4}" % locals() + +# ls32 = ( h16 ":" h16 ) / IPv4address +ls32 = r"(?: (?: %(h16)s : %(h16)s ) | %(IPv4address)s )" % locals() + +# IPv6address = 6( h16 ":" ) ls32 +# / "::" 5( h16 ":" ) ls32 +# / [ h16 ] "::" 4( h16 ":" ) ls32 +# / [ *1( h16 ":" ) h16 ] "::" 3( h16 ":" ) ls32 +# / [ *2( h16 ":" ) h16 ] "::" 2( h16 ":" ) ls32 +# / [ *3( h16 ":" ) h16 ] "::" h16 ":" ls32 +# / [ *4( h16 ":" ) h16 ] "::" ls32 +# / [ *5( h16 ":" ) h16 ] "::" h16 +# / [ *6( h16 ":" ) h16 ] "::" +IPv6address = r"""(?: (?: %(h16)s : ){6} %(ls32)s | + :: (?: %(h16)s : ){5} %(ls32)s | + %(h16)s :: (?: %(h16)s : ){4} %(ls32)s | + (?: %(h16)s : ) %(h16)s :: (?: %(h16)s : ){3} %(ls32)s | + (?: %(h16)s : ){2} %(h16)s :: (?: %(h16)s : ){2} %(ls32)s | + (?: %(h16)s : ){3} %(h16)s :: %(h16)s : %(ls32)s | + (?: %(h16)s : ){4} %(h16)s :: %(ls32)s | + (?: %(h16)s : ){5} %(h16)s :: %(h16)s | + (?: %(h16)s : ){6} %(h16)s :: + ) +""" % locals() + +# IPvFuture = "v" 1*HEXDIG "." 1*( unreserved / sub-delims / ":" ) +IPvFuture = r"v %(HEXDIG)s+ \. (?: %(unreserved)s | %(sub_delims)s | : )+" % locals() + +# IP-literal = "[" ( IPv6address / IPvFuture ) "]" +IP_literal = r"\[ (?: %(IPv6address)s | %(IPvFuture)s ) \]" % locals() + +# reg-name = *( unreserved / pct-encoded / sub-delims ) +reg_name = r"(?: %(unreserved)s | %(pct_encoded)s | %(sub_delims)s )*" % locals() + +# userinfo = *( unreserved / pct-encoded / sub-delims / ":" ) +userinfo = r"(?: %(unreserved)s | %(pct_encoded)s | %(sub_delims)s | : )" % locals( +) + +# host = IP-literal / IPv4address / reg-name +host = r"(?: %(IP_literal)s | %(IPv4address)s | %(reg_name)s )" % locals() + +# port = *DIGIT +port = r"(?: %(DIGIT)s )*" % locals() + +# authority = [ userinfo "@" ] host [ ":" port ] +authority = r"(?: %(userinfo)s @)? %(host)s (?: : %(port)s)?" % locals() + +# Path + +# segment = *pchar +segment = r"%(pchar)s*" % locals() + +# segment-nz = 1*pchar +segment_nz = r"%(pchar)s+" % locals() + +# segment-nz-nc = 1*( unreserved / pct-encoded / sub-delims / "@" ) +# ; non-zero-length segment without any colon ":" +segment_nz_nc = r"(?: %(unreserved)s | %(pct_encoded)s | %(sub_delims)s | @ )+" % locals() + +# path-abempty = *( "/" segment ) +path_abempty = r"(?: / %(segment)s )*" % locals() + +# path-absolute = "/" [ segment-nz *( "/" segment ) ] +path_absolute = r"/ (?: %(segment_nz)s (?: / %(segment)s )* )?" % locals() + +# path-noscheme = segment-nz-nc *( "/" segment ) +path_noscheme = r"%(segment_nz_nc)s (?: / %(segment)s )*" % locals() + +# path-rootless = segment-nz *( "/" segment ) +path_rootless = r"%(segment_nz)s (?: / %(segment)s )*" % locals() + +# path-empty = 0<pchar> +path_empty = r"" # FIXME + +# path = path-abempty ; begins with "/" or is empty +# / path-absolute ; begins with "/" but not "//" +# / path-noscheme ; begins with a non-colon segment +# / path-rootless ; begins with a segment +# / path-empty ; zero characters +path = r"""(?: %(path_abempty)s | + %(path_absolute)s | + %(path_noscheme)s | + %(path_rootless)s | + %(path_empty)s + ) +""" % locals() + +### Query and Fragment + +# query = *( pchar / "/" / "?" ) +query = r"(?: %(pchar)s | / | \? )*" % locals() + +# fragment = *( pchar / "/" / "?" ) +fragment = r"(?: %(pchar)s | / | \? )*" % locals() + +# URIs + +# hier-part = "//" authority path-abempty +# / path-absolute +# / path-rootless +# / path-empty +hier_part = r"""(?: (?: // %(authority)s %(path_abempty)s ) | + %(path_absolute)s | + %(path_rootless)s | + %(path_empty)s + ) +""" % locals() + +# relative-part = "//" authority path-abempty +# / path-absolute +# / path-noscheme +# / path-empty +relative_part = r"""(?: (?: // %(authority)s %(path_abempty)s ) | + %(path_absolute)s | + %(path_noscheme)s | + %(path_empty)s + ) +""" % locals() + +# relative-ref = relative-part [ "?" query ] [ "#" fragment ] +relative_ref = r"%(relative_part)s (?: \? %(query)s)? (?: \# %(fragment)s)?" % locals( +) + +# URI = scheme ":" hier-part [ "?" query ] [ "#" fragment ] +URI = r"^(?: %(scheme)s : %(hier_part)s (?: \? %(query)s )? (?: \# %(fragment)s )? )$" % locals( +) + +# URI-reference = URI / relative-ref +URI_reference = r"^(?: %(URI)s | %(relative_ref)s )$" % locals() + +# absolute-URI = scheme ":" hier-part [ "?" query ] +absolute_URI = r"^(?: %(scheme)s : %(hier_part)s (?: \? %(query)s )? )$" % locals( +) + + +def is_uri(uri): + return re.match(URI, uri, re.VERBOSE) + + +def is_uri_reference(uri): + return re.match(URI_reference, uri, re.VERBOSE) + + +def is_absolute_uri(uri): + return re.match(absolute_URI, uri, re.VERBOSE) |