Revision ec1b8d3e
| b/pithos/lib/client.py | ||
|---|---|---|
| 1 |
from httplib import HTTPConnection |
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| 1 |
from httplib import HTTPConnection, HTTP |
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| 2 |
from sys import stdin |
|
| 2 | 3 |
|
| 3 | 4 |
import json |
| 5 |
import types |
|
| 4 | 6 |
|
| 5 | 7 |
class Fault(Exception): |
| 6 | 8 |
def __init__(self, data=''): |
| ... | ... | |
| 18 | 20 |
self.verbose = verbose or debug |
| 19 | 21 |
self.debug = debug |
| 20 | 22 |
|
| 23 |
def _chunked_transfer(self, path, method='PUT', f=stdin, headers=None, |
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blocksize=1024): |
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http = HTTPConnection(self.host) |
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#http = HTTP() |
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#http.connect('127.0.0.1', 8000)
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|
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# write header |
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path = '/%s/%s%s' % (self.api, self.account, path) |
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http.putrequest(method, path) |
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http.putheader('Content-Type', 'application/octet-stream')
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http.putheader('Transfer-Encoding', 'chunked')
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if headers: |
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for header,value in headers.items(): |
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http.putheader(header, value) |
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http.endheaders() |
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|
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# write body |
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data = '' |
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while True: |
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if f.closed: |
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break |
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block = f.read(blocksize) |
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if block == '': |
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break |
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data = '%s\r\n%s\r\n' % (hex(len(block)), block) |
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try: |
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http.send(data) |
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except: |
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#retry |
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http.send(data) |
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data = '0x0\r\n' |
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try: |
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http.send(data) |
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except: |
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#retry |
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http.send(data) |
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|
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# get response |
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resp = http.getresponse() |
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headers = dict(resp.getheaders()) |
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|
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if self.verbose: |
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print '%d %s' % (resp.status, resp.reason) |
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for key, val in headers.items(): |
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print '%s: %s' % (key.capitalize(), val) |
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data = resp.read() |
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if self.debug: |
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print data |
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return resp.status, headers, data |
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|
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def req(self, method, path, body=None, headers=None, format='text', params=None): |
| 22 | 78 |
full_path = '/%s/%s%s?format=%s' % (self.api, self.account, path, format) |
| 23 | 79 |
if params: |
| 24 | 80 |
for k,v in params.items(): |
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full_path = '%s&%s=%s' %(full_path, k, v) |
|
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if v: |
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full_path = '%s&%s=%s' %(full_path, k, v) |
|
| 26 | 83 |
conn = HTTPConnection(self.host) |
| 27 | 84 |
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|
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kwargs = {}
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kwargs['headers'] = headers or {}
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kwargs['headers']['Content-Length'] = len(body) if body else 0 |
|
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if not headers or \ |
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'Transfer-Encoding' not in headers \ |
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or headers['Transfer-Encoding'] != 'chunked': |
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kwargs['headers']['Content-Length'] = len(body) if body else 0 |
|
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if body: |
| 32 | 93 |
kwargs['body'] = body |
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kwargs['headers']['Content-Type'] = 'application/octet-stream' |
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conn.request(method, full_path, params, **kwargs)
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#print '****', method, full_path, kwargs |
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conn.request(method, full_path, **kwargs) |
|
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resp = conn.getresponse() |
| 37 | 98 |
headers = dict(resp.getheaders()) |
| 38 | 99 |
|
| ... | ... | |
| 43 | 104 |
|
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|
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data = resp.read() |
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if self.debug: |
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print data |
| 49 | 109 |
|
| 50 | 110 |
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if format == 'json': |
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data = json.loads(data) |
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|
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return resp.status, headers, data |
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def delete(self, path, format='text'): |
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return self.req('DELETE', path, format=format)
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def get(self, path, format='text', headers=None, params=None): |
| 60 | 117 |
return self.req('GET', path, headers=headers, format=format,
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params=None)
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params=params)
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def head(self, path, format='text'): |
| 64 | 121 |
return self.req('HEAD', path, format=format)
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def post(self, path, body=None, format='text', headers=None): |
| 67 | 124 |
return self.req('POST', path, body, headers=headers, format=format)
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def put(self, path, body=None, format='text', headers=None): |
| 70 | 127 |
return self.req('PUT', path, body, headers=headers, format=format)
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def _list(self, path, detail=False, params=None, headers=None): |
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format = 'json' if detail else 'text' |
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status, headers, data = self.get(path, format=format, headers=headers, |
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params=params) |
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if detail: |
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data = json.loads(data) |
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else: |
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data = [data] |
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return data |
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def _get_metadata(self, path, prefix): |
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status, headers, data = self.head(path) |
| 141 |
if status == '404': |
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return None |
|
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prefixlen = len(prefix) |
| 81 | 144 |
meta = {}
|
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for key, val in headers.items(): |
| ... | ... | |
| 84 | 147 |
key = key[prefixlen:] |
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meta[key] = val |
| 86 | 149 |
return meta |
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def _set_metadata(self, path, entity, **meta): |
| 89 | 152 |
headers = {}
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| 90 | 153 |
for key, val in meta.items(): |
| ... | ... | |
| 93 | 156 |
self.post(path, headers=headers) |
| 94 | 157 |
|
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# Storage Account Services |
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def list_containers(self, detail=False, limit=1000, marker=None, |
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if_modified_since=None, if_unmodified_since=None): |
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d = {}
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if if_modified_since: |
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d['IF_MODIFIED_SINCE'] = if_modified_since |
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if if_unmodified_since: |
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d['IF_UNMODIFIED_SINCE'] = if_unmodified_since |
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headers = d and d or None |
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params = {'limit':limit, 'marker':marker}
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def list_containers(self, detail=False, params=None, headers=None): |
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return self._list('', detail, params, headers)
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def account_metadata(self): |
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return self._get_metadata('', 'x-account-')
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return self._get_metadata('', 'x-account-meta-')
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| 110 | 165 |
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| 111 | 166 |
def update_account_metadata(self, **meta): |
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self._set_metadata('', 'account', **meta)
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|
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| 114 | 169 |
# Storage Container Services |
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def list_objects(self, container, detail=False, limit=1000, marker=None, |
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prefix=None, delimiter=None, path=None, meta=None, |
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if_modified_since=None, if_unmodified_since=None): |
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params = locals() |
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params.pop('container')
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params.pop('detail')
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return self._list('/' + container, detail)
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def create_container(self, container): |
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status, header, data = self.put('/' + container)
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def list_objects(self, container, detail=False, params=None, headers=None): |
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return self._list('/' + container, detail, params, headers)
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def create_container(self, container, headers=None): |
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status, header, data = self.put('/' + container, headers=headers)
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| 126 | 176 |
if status == 202: |
| 127 | 177 |
return False |
| 128 | 178 |
elif status != 201: |
| 129 | 179 |
raise Fault(data) |
| 130 | 180 |
return True |
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| 132 | 182 |
def delete_container(self, container): |
| 133 | 183 |
self.delete('/' + container)
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| 135 | 185 |
def retrieve_container_metadata(self, container): |
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return self._get_metadata('/%s' % container, 'x-container-')
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return self._get_metadata('/%s' % container, 'x-container-meta-')
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| 137 | 187 |
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def update_container_metadata(self, container, **meta): |
| 139 | 189 |
self._set_metadata('/' + container, 'container', **meta)
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| 141 | 191 |
# Storage Object Services |
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def retrieve_object(self, container, object): |
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def retrieve_object(self, container, object, detail=False, headers=None):
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path = '/%s/%s' % (container, object) |
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status, headers, data = self.get(path) |
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format = 'json' if detail else 'text' |
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status, headers, data = self.get(path, format, headers) |
|
| 146 | 197 |
return data |
| 147 |
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def create_object(self, container, object, data): |
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|
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def create_object(self, container, object, f=stdin, chunked=False, |
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blocksize=1024, headers=None): |
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if not f: |
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return |
|
| 149 | 203 |
path = '/%s/%s' % (container, object) |
| 150 |
self.put(path, data) |
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|
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def copy_object(self, src_container, src_object, dst_container, dst_object): |
|
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if not chunked and f != stdin: |
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data = f.read() |
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self.put(path, data, headers=headers) |
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else: |
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self._chunked_transfer(path, 'PUT', f, headers=headers, |
|
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blocksize=1024) |
|
| 210 |
|
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def update_object(self, container, object, f=stdin, chunked=False, |
|
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blocksize=1024, headers=None): |
|
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if not f: |
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return |
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path = '/%s/%s' % (container, object) |
|
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if not chunked and f != stdin: |
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data = f.read() |
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self.post(path, data, headers=headers) |
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else: |
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self._chunked_transfer(path, 'POST', f, headers=headers, |
|
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blocksize=1024) |
|
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|
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def _change_obj_location(self, src_container, src_object, dst_container, |
|
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dst_object, remove=False): |
|
| 153 | 225 |
path = '/%s/%s' % (dst_container, dst_object) |
| 154 | 226 |
headers = {}
|
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headers['X-Copy-From'] = '/%s/%s' % (src_container, src_object) |
|
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if remove: |
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| 228 |
headers['X-Move-From'] = '/%s/%s' % (src_container, src_object) |
|
| 229 |
else: |
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| 230 |
headers['X-Copy-From'] = '/%s/%s' % (src_container, src_object) |
|
| 156 | 231 |
headers['Content-Length'] = 0 |
| 157 | 232 |
self.put(path, headers=headers) |
| 158 |
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| 233 |
|
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| 234 |
def copy_object(self, src_container, src_object, dst_container, |
|
| 235 |
dst_object): |
|
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self._change_obj_location(src_container, src_object, |
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dst_container, dst_object) |
|
| 238 |
|
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| 239 |
def move_object(self, src_container, src_object, dst_container, |
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| 240 |
dst_object): |
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self._change_obj_location(src_container, src_object, |
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dst_container, dst_object, True) |
|
| 243 |
|
|
| 159 | 244 |
def delete_object(self, container, object): |
| 160 | 245 |
self.delete('/%s/%s' % (container, object))
|
| 161 |
|
|
| 246 |
|
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| 162 | 247 |
def retrieve_object_metadata(self, container, object): |
| 163 | 248 |
path = '/%s/%s' % (container, object) |
| 164 | 249 |
return self._get_metadata(path, 'x-object-meta-') |
| 165 |
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| 250 |
|
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| 166 | 251 |
def update_object_metadata(self, container, object, **meta): |
| 167 | 252 |
path = '/%s/%s' % (container, object) |
| 168 | 253 |
self._set_metadata(path, 'object', **meta) |
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