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Putobject #2

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merged 2 commits into from
Jul 24, 2017
Merged

Putobject #2

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304ff24
Fix auth and Add upload header
lewzylu Jul 24, 2017
feb7e09
Fix put/get bucket
lewzylu Jul 24, 2017
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147 changes: 74 additions & 73 deletions qcloud_cos/cos_auth.py
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Original file line number Diff line number Diff line change
@@ -1,74 +1,75 @@
# -*- coding: utf-8 -*-
import hmac
import time
import urllib
import hashlib
import logging
import requests
from urllib import quote
from urlparse import urlparse
from requests.auth import AuthBase
logger = logging.getLogger(__name__)


class CosS3Auth(AuthBase):

def __init__(self, access_id, secret_key, expire=10000):
self._access_id = access_id
self._secret_key = secret_key
self._expire = expire

def __call__(self, r):
method = r.method.lower()
uri = urllib.unquote(r.url)
uri = uri.split('?')[0]
rt = urlparse(uri)
logger.debug("url parse: " + str(rt))
if rt.query != "" and ("&" in rt.query or '=' in rt.query):
uri_params = dict(map(lambda s: s.lower().split('='), rt.query.split('&')))
elif rt.query != "":
uri_params = {rt.query: ""}
else:
uri_params = {}
r.headers = {}
r.headers['Host'] = rt.netloc
headers = dict([(k.lower(), quote(v).lower()) for k, v in r.headers.items()])
format_str = "{method}\n{host}\n{params}\n{headers}\n".format(
method=method.lower(),
host=rt.path,
params=urllib.urlencode(uri_params),
headers='&'.join(map(lambda (x, y): "%s=%s" % (x, y), sorted(headers.items())))
)
logger.debug("format str: " + format_str)

start_sign_time = int(time.time())
sign_time = "{bg_time};{ed_time}".format(bg_time=start_sign_time-60, ed_time=start_sign_time + self._expire)
sha1 = hashlib.sha1()
sha1.update(format_str)

str_to_sign = "sha1\n{time}\n{sha1}\n".format(time=sign_time, sha1=sha1.hexdigest())
logger.debug('str_to_sign: ' + str(str_to_sign))
sign_key = hmac.new(self._secret_key, sign_time, hashlib.sha1).hexdigest()
sign = hmac.new(sign_key, str_to_sign, hashlib.sha1).hexdigest()
logger.debug('sign_key: ' + str(sign_key))
logger.debug('sign: ' + str(sign))
sign_tpl = "q-sign-algorithm=sha1&q-ak={ak}&q-sign-time={sign_time}&q-key-time={key_time}&q-header-list={headers}&q-url-param-list={params}&q-signature={sign}"

r.headers['Authorization'] = sign_tpl.format(
ak=self._access_id,
sign_time=sign_time,
key_time=sign_time,
params=';'.join(sorted(map(lambda k: k.lower(), uri_params.keys()))),
headers=';'.join(sorted(headers.keys())),
sign=sign
)
logger.debug("sign_key" + str(sign_key))
logger.debug(r.headers['Authorization'])

logger.debug("request headers: " + str(r.headers))
return r


if __name__ == "__main__":
url = 'http://lewzylu01-1252448703.cn-south.myqcloud.com/a.txt'
# -*- coding: utf-8 -*-
import hmac
import time
import urllib
import hashlib
import logging
import requests
from urllib import quote
from urlparse import urlparse
from requests.auth import AuthBase
logger = logging.getLogger(__name__)

#fix a bug which can't send header
class CosS3Auth(AuthBase):

def __init__(self, access_id, secret_key, expire=10000):
self._access_id = access_id
self._secret_key = secret_key
self._expire = expire

def __call__(self, r):
method = r.method.lower()
uri = urllib.unquote(r.url)
uri = uri.split('?')[0]
http_header = r.headers
r.headers = {}
rt = urlparse(uri)
logger.debug("url parse: " + str(rt))
if rt.query != "" and ("&" in rt.query or '=' in rt.query):
uri_params = dict(map(lambda s: s.lower().split('='), rt.query.split('&')))
elif rt.query != "":
uri_params = {rt.query: ""}
else:
uri_params = {}
headers = dict([(k.lower(), quote(v).lower()) for k, v in r.headers.items()])
format_str = "{method}\n{host}\n{params}\n{headers}\n".format(
method=method.lower(),
host=rt.path,
params=urllib.urlencode(uri_params),
headers='&'.join(map(lambda (x, y): "%s=%s" % (x, y), sorted(headers.items())))
)
logger.debug("format str: " + format_str)

start_sign_time = int(time.time())
sign_time = "{bg_time};{ed_time}".format(bg_time=start_sign_time-60, ed_time=start_sign_time + self._expire)
sha1 = hashlib.sha1()
sha1.update(format_str)

str_to_sign = "sha1\n{time}\n{sha1}\n".format(time=sign_time, sha1=sha1.hexdigest())
logger.debug('str_to_sign: ' + str(str_to_sign))
sign_key = hmac.new(self._secret_key, sign_time, hashlib.sha1).hexdigest()
sign = hmac.new(sign_key, str_to_sign, hashlib.sha1).hexdigest()
logger.debug('sign_key: ' + str(sign_key))
logger.debug('sign: ' + str(sign))
sign_tpl = "q-sign-algorithm=sha1&q-ak={ak}&q-sign-time={sign_time}&q-key-time={key_time}&q-header-list={headers}&q-url-param-list={params}&q-signature={sign}"

http_header['Authorization'] = sign_tpl.format(
ak=self._access_id,
sign_time=sign_time,
key_time=sign_time,
params=';'.join(sorted(map(lambda k: k.lower(), uri_params.keys()))),
headers=';'.join(sorted(headers.keys())),
sign=sign
)
r.headers = http_header
logger.debug("sign_key" + str(sign_key))
logger.debug(r.headers['Authorization'])

logger.debug("request headers: " + str(r.headers))
return r


if __name__ == "__main__":
url = 'http://lewzylu01-1252448703.cn-south.myqcloud.com/a.txt'

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