| 1 | n/a | """Macintosh-specific module for conversion between pathnames and URLs. |
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| 2 | n/a | |
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| 3 | n/a | Do not import directly; use urllib instead.""" |
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| 4 | n/a | |
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| 5 | n/a | import urllib.parse |
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| 6 | n/a | import os |
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| 7 | n/a | |
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| 8 | n/a | __all__ = ["url2pathname","pathname2url"] |
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| 9 | n/a | |
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| 10 | n/a | def url2pathname(pathname): |
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| 11 | n/a | """OS-specific conversion from a relative URL of the 'file' scheme |
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| 12 | n/a | to a file system path; not recommended for general use.""" |
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| 13 | n/a | # |
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| 14 | n/a | # XXXX The .. handling should be fixed... |
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| 15 | n/a | # |
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| 16 | n/a | tp = urllib.parse.splittype(pathname)[0] |
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| 17 | n/a | if tp and tp != 'file': |
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| 18 | n/a | raise RuntimeError('Cannot convert non-local URL to pathname') |
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| 19 | n/a | # Turn starting /// into /, an empty hostname means current host |
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| 20 | n/a | if pathname[:3] == '///': |
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| 21 | n/a | pathname = pathname[2:] |
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| 22 | n/a | elif pathname[:2] == '//': |
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| 23 | n/a | raise RuntimeError('Cannot convert non-local URL to pathname') |
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| 24 | n/a | components = pathname.split('/') |
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| 25 | n/a | # Remove . and embedded .. |
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| 26 | n/a | i = 0 |
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| 27 | n/a | while i < len(components): |
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| 28 | n/a | if components[i] == '.': |
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| 29 | n/a | del components[i] |
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| 30 | n/a | elif components[i] == '..' and i > 0 and \ |
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| 31 | n/a | components[i-1] not in ('', '..'): |
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| 32 | n/a | del components[i-1:i+1] |
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| 33 | n/a | i = i-1 |
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| 34 | n/a | elif components[i] == '' and i > 0 and components[i-1] != '': |
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| 35 | n/a | del components[i] |
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| 36 | n/a | else: |
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| 37 | n/a | i = i+1 |
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| 38 | n/a | if not components[0]: |
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| 39 | n/a | # Absolute unix path, don't start with colon |
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| 40 | n/a | rv = ':'.join(components[1:]) |
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| 41 | n/a | else: |
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| 42 | n/a | # relative unix path, start with colon. First replace |
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| 43 | n/a | # leading .. by empty strings (giving ::file) |
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| 44 | n/a | i = 0 |
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| 45 | n/a | while i < len(components) and components[i] == '..': |
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| 46 | n/a | components[i] = '' |
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| 47 | n/a | i = i + 1 |
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| 48 | n/a | rv = ':' + ':'.join(components) |
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| 49 | n/a | # and finally unquote slashes and other funny characters |
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| 50 | n/a | return urllib.parse.unquote(rv) |
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| 51 | n/a | |
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| 52 | n/a | def pathname2url(pathname): |
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| 53 | n/a | """OS-specific conversion from a file system path to a relative URL |
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| 54 | n/a | of the 'file' scheme; not recommended for general use.""" |
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| 55 | n/a | if '/' in pathname: |
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| 56 | n/a | raise RuntimeError("Cannot convert pathname containing slashes") |
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| 57 | n/a | components = pathname.split(':') |
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| 58 | n/a | # Remove empty first and/or last component |
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| 59 | n/a | if components[0] == '': |
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| 60 | n/a | del components[0] |
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| 61 | n/a | if components[-1] == '': |
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| 62 | n/a | del components[-1] |
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| 63 | n/a | # Replace empty string ('::') by .. (will result in '/../' later) |
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| 64 | n/a | for i in range(len(components)): |
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| 65 | n/a | if components[i] == '': |
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| 66 | n/a | components[i] = '..' |
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| 67 | n/a | # Truncate names longer than 31 bytes |
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| 68 | n/a | components = map(_pncomp2url, components) |
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| 69 | n/a | |
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| 70 | n/a | if os.path.isabs(pathname): |
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| 71 | n/a | return '/' + '/'.join(components) |
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| 72 | n/a | else: |
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| 73 | n/a | return '/'.join(components) |
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| 74 | n/a | |
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| 75 | n/a | def _pncomp2url(component): |
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| 76 | n/a | # We want to quote slashes |
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| 77 | n/a | return urllib.parse.quote(component[:31], safe='') |
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