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Diffstat (limited to 'AppPkg/Applications/Python/Python-2.7.10/Lib/urlparse.py')
-rw-r--r-- | AppPkg/Applications/Python/Python-2.7.10/Lib/urlparse.py | 428 |
1 files changed, 428 insertions, 0 deletions
diff --git a/AppPkg/Applications/Python/Python-2.7.10/Lib/urlparse.py b/AppPkg/Applications/Python/Python-2.7.10/Lib/urlparse.py new file mode 100644 index 0000000000..c4de785024 --- /dev/null +++ b/AppPkg/Applications/Python/Python-2.7.10/Lib/urlparse.py @@ -0,0 +1,428 @@ +"""Parse (absolute and relative) URLs.
+
+urlparse module is based upon the following RFC specifications.
+
+RFC 3986 (STD66): "Uniform Resource Identifiers" by T. Berners-Lee, R. Fielding
+and L. Masinter, January 2005.
+
+RFC 2732 : "Format for Literal IPv6 Addresses in URL's by R.Hinden, B.Carpenter
+and L.Masinter, December 1999.
+
+RFC 2396: "Uniform Resource Identifiers (URI)": Generic Syntax by T.
+Berners-Lee, R. Fielding, and L. Masinter, August 1998.
+
+RFC 2368: "The mailto URL scheme", by P.Hoffman , L Masinter, J. Zwinski, July 1998.
+
+RFC 1808: "Relative Uniform Resource Locators", by R. Fielding, UC Irvine, June
+1995.
+
+RFC 1738: "Uniform Resource Locators (URL)" by T. Berners-Lee, L. Masinter, M.
+McCahill, December 1994
+
+RFC 3986 is considered the current standard and any future changes to
+urlparse module should conform with it. The urlparse module is
+currently not entirely compliant with this RFC due to defacto
+scenarios for parsing, and for backward compatibility purposes, some
+parsing quirks from older RFCs are retained. The testcases in
+test_urlparse.py provides a good indicator of parsing behavior.
+
+"""
+
+import re
+
+__all__ = ["urlparse", "urlunparse", "urljoin", "urldefrag",
+ "urlsplit", "urlunsplit", "parse_qs", "parse_qsl"]
+
+# A classification of schemes ('' means apply by default)
+uses_relative = ['ftp', 'http', 'gopher', 'nntp', 'imap',
+ 'wais', 'file', 'https', 'shttp', 'mms',
+ 'prospero', 'rtsp', 'rtspu', '', 'sftp',
+ 'svn', 'svn+ssh']
+uses_netloc = ['ftp', 'http', 'gopher', 'nntp', 'telnet',
+ 'imap', 'wais', 'file', 'mms', 'https', 'shttp',
+ 'snews', 'prospero', 'rtsp', 'rtspu', 'rsync', '',
+ 'svn', 'svn+ssh', 'sftp','nfs','git', 'git+ssh']
+uses_params = ['ftp', 'hdl', 'prospero', 'http', 'imap',
+ 'https', 'shttp', 'rtsp', 'rtspu', 'sip', 'sips',
+ 'mms', '', 'sftp', 'tel']
+
+# These are not actually used anymore, but should stay for backwards
+# compatibility. (They are undocumented, but have a public-looking name.)
+non_hierarchical = ['gopher', 'hdl', 'mailto', 'news',
+ 'telnet', 'wais', 'imap', 'snews', 'sip', 'sips']
+uses_query = ['http', 'wais', 'imap', 'https', 'shttp', 'mms',
+ 'gopher', 'rtsp', 'rtspu', 'sip', 'sips', '']
+uses_fragment = ['ftp', 'hdl', 'http', 'gopher', 'news',
+ 'nntp', 'wais', 'https', 'shttp', 'snews',
+ 'file', 'prospero', '']
+
+# Characters valid in scheme names
+scheme_chars = ('abcdefghijklmnopqrstuvwxyz'
+ 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
+ '0123456789'
+ '+-.')
+
+MAX_CACHE_SIZE = 20
+_parse_cache = {}
+
+def clear_cache():
+ """Clear the parse cache."""
+ _parse_cache.clear()
+
+
+class ResultMixin(object):
+ """Shared methods for the parsed result objects."""
+
+ @property
+ def username(self):
+ netloc = self.netloc
+ if "@" in netloc:
+ userinfo = netloc.rsplit("@", 1)[0]
+ if ":" in userinfo:
+ userinfo = userinfo.split(":", 1)[0]
+ return userinfo
+ return None
+
+ @property
+ def password(self):
+ netloc = self.netloc
+ if "@" in netloc:
+ userinfo = netloc.rsplit("@", 1)[0]
+ if ":" in userinfo:
+ return userinfo.split(":", 1)[1]
+ return None
+
+ @property
+ def hostname(self):
+ netloc = self.netloc.split('@')[-1]
+ if '[' in netloc and ']' in netloc:
+ return netloc.split(']')[0][1:].lower()
+ elif ':' in netloc:
+ return netloc.split(':')[0].lower()
+ elif netloc == '':
+ return None
+ else:
+ return netloc.lower()
+
+ @property
+ def port(self):
+ netloc = self.netloc.split('@')[-1].split(']')[-1]
+ if ':' in netloc:
+ port = netloc.split(':')[1]
+ if port:
+ port = int(port, 10)
+ # verify legal port
+ if (0 <= port <= 65535):
+ return port
+ return None
+
+from collections import namedtuple
+
+class SplitResult(namedtuple('SplitResult', 'scheme netloc path query fragment'), ResultMixin):
+
+ __slots__ = ()
+
+ def geturl(self):
+ return urlunsplit(self)
+
+
+class ParseResult(namedtuple('ParseResult', 'scheme netloc path params query fragment'), ResultMixin):
+
+ __slots__ = ()
+
+ def geturl(self):
+ return urlunparse(self)
+
+
+def urlparse(url, scheme='', allow_fragments=True):
+ """Parse a URL into 6 components:
+ <scheme>://<netloc>/<path>;<params>?<query>#<fragment>
+ Return a 6-tuple: (scheme, netloc, path, params, query, fragment).
+ Note that we don't break the components up in smaller bits
+ (e.g. netloc is a single string) and we don't expand % escapes."""
+ tuple = urlsplit(url, scheme, allow_fragments)
+ scheme, netloc, url, query, fragment = tuple
+ if scheme in uses_params and ';' in url:
+ url, params = _splitparams(url)
+ else:
+ params = ''
+ return ParseResult(scheme, netloc, url, params, query, fragment)
+
+def _splitparams(url):
+ if '/' in url:
+ i = url.find(';', url.rfind('/'))
+ if i < 0:
+ return url, ''
+ else:
+ i = url.find(';')
+ return url[:i], url[i+1:]
+
+def _splitnetloc(url, start=0):
+ delim = len(url) # position of end of domain part of url, default is end
+ for c in '/?#': # look for delimiters; the order is NOT important
+ wdelim = url.find(c, start) # find first of this delim
+ if wdelim >= 0: # if found
+ delim = min(delim, wdelim) # use earliest delim position
+ return url[start:delim], url[delim:] # return (domain, rest)
+
+def urlsplit(url, scheme='', allow_fragments=True):
+ """Parse a URL into 5 components:
+ <scheme>://<netloc>/<path>?<query>#<fragment>
+ Return a 5-tuple: (scheme, netloc, path, query, fragment).
+ Note that we don't break the components up in smaller bits
+ (e.g. netloc is a single string) and we don't expand % escapes."""
+ allow_fragments = bool(allow_fragments)
+ key = url, scheme, allow_fragments, type(url), type(scheme)
+ cached = _parse_cache.get(key, None)
+ if cached:
+ return cached
+ if len(_parse_cache) >= MAX_CACHE_SIZE: # avoid runaway growth
+ clear_cache()
+ netloc = query = fragment = ''
+ i = url.find(':')
+ if i > 0:
+ if url[:i] == 'http': # optimize the common case
+ scheme = url[:i].lower()
+ url = url[i+1:]
+ if url[:2] == '//':
+ netloc, url = _splitnetloc(url, 2)
+ if (('[' in netloc and ']' not in netloc) or
+ (']' in netloc and '[' not in netloc)):
+ raise ValueError("Invalid IPv6 URL")
+ if allow_fragments and '#' in url:
+ url, fragment = url.split('#', 1)
+ if '?' in url:
+ url, query = url.split('?', 1)
+ v = SplitResult(scheme, netloc, url, query, fragment)
+ _parse_cache[key] = v
+ return v
+ for c in url[:i]:
+ if c not in scheme_chars:
+ break
+ else:
+ # make sure "url" is not actually a port number (in which case
+ # "scheme" is really part of the path)
+ rest = url[i+1:]
+ if not rest or any(c not in '0123456789' for c in rest):
+ # not a port number
+ scheme, url = url[:i].lower(), rest
+
+ if url[:2] == '//':
+ netloc, url = _splitnetloc(url, 2)
+ if (('[' in netloc and ']' not in netloc) or
+ (']' in netloc and '[' not in netloc)):
+ raise ValueError("Invalid IPv6 URL")
+ if allow_fragments and '#' in url:
+ url, fragment = url.split('#', 1)
+ if '?' in url:
+ url, query = url.split('?', 1)
+ v = SplitResult(scheme, netloc, url, query, fragment)
+ _parse_cache[key] = v
+ return v
+
+def urlunparse(data):
+ """Put a parsed URL back together again. This may result in a
+ slightly different, but equivalent URL, if the URL that was parsed
+ originally had redundant delimiters, e.g. a ? with an empty query
+ (the draft states that these are equivalent)."""
+ scheme, netloc, url, params, query, fragment = data
+ if params:
+ url = "%s;%s" % (url, params)
+ return urlunsplit((scheme, netloc, url, query, fragment))
+
+def urlunsplit(data):
+ """Combine the elements of a tuple as returned by urlsplit() into a
+ complete URL as a string. The data argument can be any five-item iterable.
+ This may result in a slightly different, but equivalent URL, if the URL that
+ was parsed originally had unnecessary delimiters (for example, a ? with an
+ empty query; the RFC states that these are equivalent)."""
+ scheme, netloc, url, query, fragment = data
+ if netloc or (scheme and scheme in uses_netloc and url[:2] != '//'):
+ if url and url[:1] != '/': url = '/' + url
+ url = '//' + (netloc or '') + url
+ if scheme:
+ url = scheme + ':' + url
+ if query:
+ url = url + '?' + query
+ if fragment:
+ url = url + '#' + fragment
+ return url
+
+def urljoin(base, url, allow_fragments=True):
+ """Join a base URL and a possibly relative URL to form an absolute
+ interpretation of the latter."""
+ if not base:
+ return url
+ if not url:
+ return base
+ bscheme, bnetloc, bpath, bparams, bquery, bfragment = \
+ urlparse(base, '', allow_fragments)
+ scheme, netloc, path, params, query, fragment = \
+ urlparse(url, bscheme, allow_fragments)
+ if scheme != bscheme or scheme not in uses_relative:
+ return url
+ if scheme in uses_netloc:
+ if netloc:
+ return urlunparse((scheme, netloc, path,
+ params, query, fragment))
+ netloc = bnetloc
+ if path[:1] == '/':
+ return urlunparse((scheme, netloc, path,
+ params, query, fragment))
+ if not path and not params:
+ path = bpath
+ params = bparams
+ if not query:
+ query = bquery
+ return urlunparse((scheme, netloc, path,
+ params, query, fragment))
+ segments = bpath.split('/')[:-1] + path.split('/')
+ # XXX The stuff below is bogus in various ways...
+ if segments[-1] == '.':
+ segments[-1] = ''
+ while '.' in segments:
+ segments.remove('.')
+ while 1:
+ i = 1
+ n = len(segments) - 1
+ while i < n:
+ if (segments[i] == '..'
+ and segments[i-1] not in ('', '..')):
+ del segments[i-1:i+1]
+ break
+ i = i+1
+ else:
+ break
+ if segments == ['', '..']:
+ segments[-1] = ''
+ elif len(segments) >= 2 and segments[-1] == '..':
+ segments[-2:] = ['']
+ return urlunparse((scheme, netloc, '/'.join(segments),
+ params, query, fragment))
+
+def urldefrag(url):
+ """Removes any existing fragment from URL.
+
+ Returns a tuple of the defragmented URL and the fragment. If
+ the URL contained no fragments, the second element is the
+ empty string.
+ """
+ if '#' in url:
+ s, n, p, a, q, frag = urlparse(url)
+ defrag = urlunparse((s, n, p, a, q, ''))
+ return defrag, frag
+ else:
+ return url, ''
+
+try:
+ unicode
+except NameError:
+ def _is_unicode(x):
+ return 0
+else:
+ def _is_unicode(x):
+ return isinstance(x, unicode)
+
+# unquote method for parse_qs and parse_qsl
+# Cannot use directly from urllib as it would create a circular reference
+# because urllib uses urlparse methods (urljoin). If you update this function,
+# update it also in urllib. This code duplication does not existin in Python3.
+
+_hexdig = '0123456789ABCDEFabcdef'
+_hextochr = dict((a+b, chr(int(a+b,16)))
+ for a in _hexdig for b in _hexdig)
+_asciire = re.compile('([\x00-\x7f]+)')
+
+def unquote(s):
+ """unquote('abc%20def') -> 'abc def'."""
+ if _is_unicode(s):
+ if '%' not in s:
+ return s
+ bits = _asciire.split(s)
+ res = [bits[0]]
+ append = res.append
+ for i in range(1, len(bits), 2):
+ append(unquote(str(bits[i])).decode('latin1'))
+ append(bits[i + 1])
+ return ''.join(res)
+
+ bits = s.split('%')
+ # fastpath
+ if len(bits) == 1:
+ return s
+ res = [bits[0]]
+ append = res.append
+ for item in bits[1:]:
+ try:
+ append(_hextochr[item[:2]])
+ append(item[2:])
+ except KeyError:
+ append('%')
+ append(item)
+ return ''.join(res)
+
+def parse_qs(qs, keep_blank_values=0, strict_parsing=0):
+ """Parse a query given as a string argument.
+
+ Arguments:
+
+ qs: percent-encoded query string to be parsed
+
+ keep_blank_values: flag indicating whether blank values in
+ percent-encoded queries should be treated as blank strings.
+ A true value indicates that blanks should be retained as
+ blank strings. The default false value indicates that
+ blank values are to be ignored and treated as if they were
+ not included.
+
+ strict_parsing: flag indicating what to do with parsing errors.
+ If false (the default), errors are silently ignored.
+ If true, errors raise a ValueError exception.
+ """
+ dict = {}
+ for name, value in parse_qsl(qs, keep_blank_values, strict_parsing):
+ if name in dict:
+ dict[name].append(value)
+ else:
+ dict[name] = [value]
+ return dict
+
+def parse_qsl(qs, keep_blank_values=0, strict_parsing=0):
+ """Parse a query given as a string argument.
+
+ Arguments:
+
+ qs: percent-encoded query string to be parsed
+
+ keep_blank_values: flag indicating whether blank values in
+ percent-encoded queries should be treated as blank strings. A
+ true value indicates that blanks should be retained as blank
+ strings. The default false value indicates that blank values
+ are to be ignored and treated as if they were not included.
+
+ strict_parsing: flag indicating what to do with parsing errors. If
+ false (the default), errors are silently ignored. If true,
+ errors raise a ValueError exception.
+
+ Returns a list, as G-d intended.
+ """
+ pairs = [s2 for s1 in qs.split('&') for s2 in s1.split(';')]
+ r = []
+ for name_value in pairs:
+ if not name_value and not strict_parsing:
+ continue
+ nv = name_value.split('=', 1)
+ if len(nv) != 2:
+ if strict_parsing:
+ raise ValueError, "bad query field: %r" % (name_value,)
+ # Handle case of a control-name with no equal sign
+ if keep_blank_values:
+ nv.append('')
+ else:
+ continue
+ if len(nv[1]) or keep_blank_values:
+ name = unquote(nv[0].replace('+', ' '))
+ value = unquote(nv[1].replace('+', ' '))
+ r.append((name, value))
+
+ return r
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