1 """Convert a NT pathname to a file URL and vice versa.""" 2 3 def url2pathname(url): 4 """OS-specific conversion from a relative URL of the 'file' scheme 5 to a file system path; not recommended for general use.""" 6 # e.g. 7 # ///C|/foo/bar/spam.foo 8 # becomes 9 # C:\foo\bar\spam.foo 10 import string, urllib 11 # Windows itself uses ":" even in URLs. 12 url = url.replace(':', '|') 13 if not '|' in url: 14 # No drive specifier, just convert slashes 15 if url[:4] == '////': 16 # path is something like ////host/path/on/remote/host 17 # convert this to \\host\path\on\remote\host 18 # (notice halving of slashes at the start of the path) 19 url = url[2:] 20 components = url.split('/') 21 # make sure not to convert quoted slashes :-) 22 return urllib.unquote('\\'.join(components)) 23 comp = url.split('|') 24 if len(comp) != 2 or comp[0][-1] not in string.ascii_letters: 25 error = 'Bad URL: ' + url 26 raise IOError, error 27 drive = comp[0][-1].upper() 28 path = drive + ':' 29 components = comp[1].split('/') 30 for comp in components: 31 if comp: 32 path = path + '\\' + urllib.unquote(comp) 33 # Issue #11474: url like '/C|/' should convert into 'C:\\' 34 if path.endswith(':') and url.endswith('/'): 35 path += '\\' 36 return path 37 38 def pathname2url(p): 39 """OS-specific conversion from a file system path to a relative URL 40 of the 'file' scheme; not recommended for general use.""" 41 # e.g. 42 # C:\foo\bar\spam.foo 43 # becomes 44 # ///C|/foo/bar/spam.foo 45 import urllib 46 if not ':' in p: 47 # No drive specifier, just convert slashes and quote the name 48 if p[:2] == '\\\\': 49 # path is something like \\host\path\on\remote\host 50 # convert this to ////host/path/on/remote/host 51 # (notice doubling of slashes at the start of the path) 52 p = '\\\\' + p 53 components = p.split('\\') 54 return urllib.quote('/'.join(components)) 55 comp = p.split(':') 56 if len(comp) != 2 or len(comp[0]) > 1: 57 error = 'Bad path: ' + p 58 raise IOError, error 59 60 drive = urllib.quote(comp[0].upper()) 61 components = comp[1].split('\\') 62 path = '///' + drive + ':' 63 for comp in components: 64 if comp: 65 path = path + '/' + urllib.quote(comp) 66 return path 67
