文件操作 - utils.py

文件: /usr/lib/python2.7/site-packages/cloudfiles/utils.py

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""" See COPYING for license information. """

import re
from urllib    import quote
from urlparse  import urlparse
from errors    import InvalidUrl
from httplib   import HTTPConnection, HTTPSConnection, HTTP

def parse_url(url):
    """
    Given a URL, returns a 4-tuple containing the hostname, port,
    a path relative to root (if any), and a boolean representing
    whether the connection should use SSL or not.
    """
    (scheme, netloc, path, params, query, frag) = urlparse(url)

# We only support web services
    if not scheme in ('http', 'https'):
        raise InvalidUrl('Scheme must be one of http or https')

is_ssl = scheme == 'https' and True or False

# Verify hostnames are valid and parse a port spec (if any)
    match = re.match('([a-zA-Z0-9\-\.]+):?([0-9]{2,5})?', netloc)

if match:
        (host, port) = match.groups()
        if not port:
            port = is_ssl and '443' or '80'
    else:
        raise InvalidUrl('Invalid host and/or port: %s' % netloc)

return (host, int(port), path.strip('/'), is_ssl)

def requires_name(exc_class):
    """Decorator to guard against invalid or unset names."""
    def wrapper(f):
        def decorator(*args, **kwargs):
            if not hasattr(args[0], 'name'):
                raise exc_class('')
            if not args[0].name:
                raise exc_class(args[0].name)
            return f(*args, **kwargs)
        decorator.__name__ = f.__name__
        decorator.__doc__ = f.__doc__
        decorator.parent_func = f
        return decorator
    return wrapper

def unicode_quote(s):
    """
    Utility function to address handling of unicode characters when using the quote
    method of the stdlib module urlparse. Converts unicode, if supplied, to utf-8
    and returns quoted utf-8 string.

For more info see http://bugs.python.org/issue1712522 or
    http://mail.python.org/pipermail/python-dev/2006-July/067248.html
    """
    if isinstance(s, unicode):
        return quote(s.encode("utf-8"))
    else:
        return quote(str(s))

class THTTPConnection(HTTPConnection):
    def __init__(self, host, port, timeout):
        HTTPConnection.__init__(self, host, port)
        self.timeout = timeout

def connect(self):
        HTTPConnection.connect(self)
        self.sock.settimeout(self.timeout)

class THTTP(HTTP):
    _connection_class = THTTPConnection

def set_timeout(self, timeout):
        self._conn.timeout = timeout

class THTTPSConnection(HTTPSConnection):
    def __init__(self, host, port, timeout):
        HTTPSConnection.__init__(self, host, port)
        self.timeout = timeout

def connect(self):
        HTTPSConnection.connect(self)
        self.sock.settimeout(self.timeout)

class THTTPS(HTTP):
    _connection_class = THTTPSConnection

def set_timeout(self, timeout):
        self._conn.timeout = timeout

文件操作 - utils.py

文件: /usr/lib/python2.7/site-packages/cloudfiles/utils.py

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