"""Convert a NT pathname to a file URL and vice versa.""" | |
def url2pathname(url): | |
"""OS-specific conversion from a relative URL of the 'file' scheme | |
to a file system path; not recommended for general use.""" | |
# e.g. | |
# ///C|/foo/bar/spam.foo | |
# becomes | |
# C:\foo\bar\spam.foo | |
import string, urllib | |
# Windows itself uses ":" even in URLs. | |
url = url.replace(':', '|') | |
if not '|' in url: | |
# No drive specifier, just convert slashes | |
if url[:4] == '////': | |
# path is something like ////host/path/on/remote/host | |
# convert this to \\host\path\on\remote\host | |
# (notice halving of slashes at the start of the path) | |
url = url[2:] | |
components = url.split('/') | |
# make sure not to convert quoted slashes :-) | |
return urllib.unquote('\\'.join(components)) | |
comp = url.split('|') | |
if len(comp) != 2 or comp[0][-1] not in string.ascii_letters: | |
error = 'Bad URL: ' + url | |
raise IOError, error | |
drive = comp[0][-1].upper() | |
path = drive + ':' | |
components = comp[1].split('/') | |
for comp in components: | |
if comp: | |
path = path + '\\' + urllib.unquote(comp) | |
# Issue #11474: url like '/C|/' should convert into 'C:\\' | |
if path.endswith(':') and url.endswith('/'): | |
path += '\\' | |
return path | |
def pathname2url(p): | |
"""OS-specific conversion from a file system path to a relative URL | |
of the 'file' scheme; not recommended for general use.""" | |
# e.g. | |
# C:\foo\bar\spam.foo | |
# becomes | |
# ///C|/foo/bar/spam.foo | |
import urllib | |
if not ':' in p: | |
# No drive specifier, just convert slashes and quote the name | |
if p[:2] == '\\\\': | |
# path is something like \\host\path\on\remote\host | |
# convert this to ////host/path/on/remote/host | |
# (notice doubling of slashes at the start of the path) | |
p = '\\\\' + p | |
components = p.split('\\') | |
return urllib.quote('/'.join(components)) | |
comp = p.split(':') | |
if len(comp) != 2 or len(comp[0]) > 1: | |
error = 'Bad path: ' + p | |
raise IOError, error | |
drive = urllib.quote(comp[0].upper()) | |
components = comp[1].split('\\') | |
path = '///' + drive + ':' | |
for comp in components: | |
if comp: | |
path = path + '/' + urllib.quote(comp) | |
return path |