ceph中rgw对象etag的示例代码

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import hashlib
import boto
import traceback
from boto.s3.connection import S3Connection
class ETagExample(object):
 def __init__(self):
 self.s3_bucket =  yuliyang6 
 self.s3_conn = boto.connect_s3(
  admin ,
  admin ,
 host= 192.168.10.147 ,
 is_secure=False,
 port=8081,
 calling_format=boto.s3.connection.OrdinaryCallingFormat(),
 )
 #Function to calculate the checksum of a local file
 def find_checksum(self, file_name):
 try:
 checksum = hashlib.md5(open(file_name).read()).hexdigest()
 return checksum
 except Exception, e:
 print  Exception occurred while calculating checksum :  + str(e)
 print traceback.print_exc()
 #Function to calculate the Etag of a file in S3
 def find_etag(self, full_key_name):
 try:
 bucket = self.s3_conn.get_bucket(self.s3_bucket)
 key = bucket.get_key(full_key_name)
 s3_etag = key.etag.strip().strip()
 return s3_etag
 except Exception, e:
 print  Exception occurred while calculating S3 Etag :   + str(e)
 print traceback.print_exc()
if __name__ ==  __main__ :
 test = ETagExample()
 print test.find_checksum(object1)
 print test.find_etag(object1)

320c1c0f22dc91d94afe36a042ebc89d
send:  HEAD /yuliyang6/ HTTP/1.1\r\nHost: 192.168.10.147:8081\r\nAccept-Encoding: identity\r\nDate: Sun, 06 Nov 2016 07:54:51 GMT\r\nContent-Length: 0\r\nAuthorization: AWS admin:P7eaeSj73/8dObIeJtIac/ZwXzA=\r\nUser-Agent: Boto/2.41.0 Python/2.7.9 Windows/7\r\n\r\n 
reply:  HTTP/1.1 200 OK\r\n 
header: X-RGW-Object-Count: 1
header: X-RGW-Bytes-Used: 847
header: x-amz-request-id: tx0000000000000000004f6-00581ee1cb-857b-default
header: Content-Length: 0
header: Date: Sun, 06 Nov 2016 07:54:51 GMT
send:  HEAD /yuliyang2/ HTTP/1.1\r\nHost: 192.168.10.147:8081\r\nAccept-Encoding: identity\r\nDate: Sun, 06 Nov 2016 07:54:51 GMT\r\nContent-Length: 0\r\nAuthorization: AWS admin:FOtHjwG9XIHPaoBy8TT8QDB3y0I=\r\nUser-Agent: Boto/2.41.0 Python/2.7.9 Windows/7\r\n\r\n 
reply:  HTTP/1.1 200 OK\r\n 
header: X-RGW-Object-Count: 4
header: X-RGW-Bytes-Used: 104858452
header: x-amz-request-id: tx0000000000000000004f7-00581ee1cb-857b-default
header: Content-Length: 0
header: Date: Sun, 06 Nov 2016 07:54:51 GMT
send:  HEAD /yuliyang2/object1 HTTP/1.1\r\nHost: 192.168.10.147:8081\r\nAccept-Encoding: identity\r\nDate: Sun, 06 Nov 2016 07:54:51 GMT\r\nContent-Length: 0\r\nAuthorization: AWS admin:KADu0hAVS1BVs3Y9zTIO7dRovCs=\r\nUser-Agent: Boto/2.41.0 Python/2.7.9 Windows/7\r\n\r\n 
reply:  HTTP/1.1 200 OK\r\n 
header: Content-Length: 847
header: Accept-Ranges: bytes
header: Last-Modified: Sun, 06 Nov 2016 07:54:12 GMT
header: ETag:  320c1c0f22dc91d94afe36a042ebc89d 
header: x-amz-request-id: tx0000000000000000004f8-00581ee1cb-857b-default
header: Content-Type: binary/octet-stream
header: Date: Sun, 06 Nov 2016 07:54:51 GMT
320c1c0f22dc91d94afe36a042ebc89d

[root@joke ceph-request]# ceph-request -c ceph-request.cfg -m head -r  /yuliyang2/object1  -v
  HEAD /yuliyang2/object1 HTTP/1.1
  Host: 192.168.10.147:8081
  Connection: keep-alive
  Accept-Encoding: gzip, deflate
  Accept: */*
  User-Agent: python-requests/2.11.1
  date: Sun, 06 Nov 2016 07:54:28 GMT
  Authorization: AWS admin:qCWFpvxlOfSERMeaV/sfVm0Wcek=
  
  HTTP/1.1 200 OK
  Content-Length: 847
  Accept-Ranges: bytes
  Last-Modified: Sun, 06 Nov 2016 07:54:12 GMT
  ETag:  320c1c0f22dc91d94afe36a042ebc89d 
  x-amz-request-id: tx0000000000000000004f5-00581ee1b4-857b-default
  Content-Type: binary/octet-stream
  Date: Sun, 06 Nov 2016 07:54:28 GMT
  Connection: Keep-Alive

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