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