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 # and 9 # ///C:/foo/bar/spam.foo 10 # become 11 # C:\foo\bar\spam.foo 12 import string, urllib.parse 13 # Windows itself uses ":" even in URLs. 14 url = url.replace(':', '|') 15 if not '|' in url: 16 # No drive specifier, just convert slashes 17 if url[:4] == '////': 18 # path is something like ////host/path/on/remote/host 19 # convert this to \\host\path\on\remote\host 20 # (notice halving of slashes at the start of the path) 21 url = url[2:] 22 components = url.split('/') 23 # make sure not to convert quoted slashes :-) 24 return urllib.parse.unquote('\\'.join(components)) 25 comp = url.split('|') 26 if len(comp) != 2 or comp[0][-1] not in string.ascii_letters: 27 error = 'Bad URL: ' + url 28 raise OSError(error) 29 drive = comp[0][-1].upper() 30 components = comp[1].split('/') 31 path = drive + ':' 32 for comp in components: 33 if comp: 34 path = path + '\\' + urllib.parse.unquote(comp) 35 # Issue #11474 - handing url such as |c/| 36 if path.endswith(':') and url.endswith('/'): 37 path += '\\' 38 return path 39 40 def pathname2url(p): 41 """OS-specific conversion from a file system path to a relative URL 42 of the 'file' scheme; not recommended for general use.""" 43 # e.g. 44 # C:\foo\bar\spam.foo 45 # becomes 46 # ///C:/foo/bar/spam.foo 47 import urllib.parse 48 if not ':' in p: 49 # No drive specifier, just convert slashes and quote the name 50 if p[:2] == '\\\\': 51 # path is something like \\host\path\on\remote\host 52 # convert this to ////host/path/on/remote/host 53 # (notice doubling of slashes at the start of the path) 54 p = '\\\\' + p 55 components = p.split('\\') 56 return urllib.parse.quote('/'.join(components)) 57 comp = p.split(':') 58 if len(comp) != 2 or len(comp[0]) > 1: 59 error = 'Bad path: ' + p 60 raise OSError(error) 61 62 drive = urllib.parse.quote(comp[0].upper()) 63 components = comp[1].split('\\') 64 path = '///' + drive + ':' 65 for comp in components: 66 if comp: 67 path = path + '/' + urllib.parse.quote(comp) 68 return path 69
