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#!/usr/bin/env python3
"""<h1>Swift mock</h1>
<pre>
author: Thomas Duval
mail: thomas.duval@orange.com
version: 0.1
API:
- GET /info List activated capabilities
- GET /v1/{account} Show account details and list containers
- POST /v1/{account} Create, update, or delete account metadata
- HEAD /v1/{account} Show account metadata
- GET /v1/{account}/{container} Show container details and list objects
- PUT /v1/{account}/{container} Create container
- DELETE /v1/{account}/{container} Delete container
- POST /v1/{account}/{container} Create, update, or delete container metadata
- HEAD /v1/{account}/{container} Show container metadata
- GET /v1/{account}/{container}/{object} Get object content and metadata
- PUT /v1/{account}/{container}/{object} Create or replace object
- COPY /v1/{account}/{container}/{object} Copy object
- DELETE /v1/{account}/{container}/{object} Delete object
- COPY /v1/{account}/{container}/{object} Copy object
- HEAD /v1/{account}/{container}/{object} Show object metadata
- POST /v1/{account}/{container}/{object} Create or update object metadata
</pre>
<p>
Locally, the datastore is based on directories in /tmp/swift_dir,
those directories are built with the following structure:
{data_dir}/{account}/{container}/{object}.
</p>
<p>
For more information on SWIFT API:
<a href="http://developer.openstack.org/api-ref-objectstorage-v1.html">api-ref-objectstorage-v1.html</a>
</p>
"""
import cherrypy
import json
import os
import glob
import shutil
import time
import hashlib
TEMPLATE_HTML = """
<html>
<head><title>{title}</title></head>
<body>
{body}
</body>
</html>
"""
@cherrypy.popargs('account', 'container', 'object')
class Swift(object):
def __init__(self):
if os.path.isdir('/tmp'):
self.data_dir = "/tmp/swift_data"
else:
self.data_dir = "data"
cherrypy.log("Data dir set to {}".format(self.data_dir))
try:
os.mkdir(self.data_dir)
except FileExistsError:
cherrypy.log("Data dir already exist")
def __get_json(self):
cl = cherrypy.request.headers['Content-Length']
rawbody = cherrypy.request.body.read(int(cl))
return json.loads(rawbody.decode("utf-8"))
def __get_rawdata(self):
cl = cherrypy.request.headers['Content-Length']
rawbody = cherrypy.request.body.read(int(cl))
return rawbody
@cherrypy.expose
def index(self, account="", container="", object=""):
return __doc__
@cherrypy.expose
def info(self, account="", container="", object=""):
info_dict = {
"swift": {
"version": "1.11.0"
},
"staticweb": {},
"tempurl": {}
}
return json.dumps(info_dict)
@cherrypy.expose
def v1(self, account="", container="", object=""):
print("v1", account, container, object)
if account and not container and not object:
if cherrypy.request.method == "GET":
return self.show_account(account)
elif cherrypy.request.method == "POST":
return self.create_account(account)
elif cherrypy.request.method == "HEAD":
return self.show_account_metadata(account)
elif account and container and not object:
if cherrypy.request.method == "GET":
return self.show_container(account, container)
elif cherrypy.request.method == "PUT":
return self.create_container(account, container)
elif cherrypy.request.method == "DELETE":
return self.delete_container(account, container)
elif cherrypy.request.method == "POST":
return self.modify_container(account, container)
elif cherrypy.request.method == "HEAD":
return self.show_container_metadata(account, container)
elif account and container and object:
if cherrypy.request.method == "GET":
return self.show_object(account, container, object)
elif cherrypy.request.method == "PUT":
return self.create_object(account, container, object)
elif cherrypy.request.method == "DELETE":
return self.delete_object(account, container, object)
elif cherrypy.request.method == "COPY":
return self.copy_object(account, container, object)
elif cherrypy.request.method == "POST":
return self.modify_object(account, container, object)
elif cherrypy.request.method == "HEAD":
return self.show_object_metadata(account, container, object)
raise cherrypy.HTTPError(500, "Request not supported ({} - {})".format(
cherrypy.request.method, cherrypy.request.query_string))
def show_account(self, account):
list_dir = glob.glob(os.path.join(self.data_dir, account, "*"))
data_list = list()
for _container in list_dir:
_objects = glob.glob(os.path.join(self.data_dir, account, _container, "*"))
data_list.append({
"count": len(_objects),
"bytes": 0,
"name": os.path.basename(_container)
})
return json.dumps(data_list)
def create_account(self, account):
if not os.path.isdir(os.path.join(self.data_dir, account)):
os.mkdir(os.path.join(self.data_dir, account))
cherrypy.response.status = 204
return "OK"
raise cherrypy.HTTPError(500, "Account already created")
def show_account_metadata(self, account):
if not os.path.isdir(os.path.join(self.data_dir, account)):
raise cherrypy.HTTPError(404)
# TODO: header
raise cherrypy.HTTPError(500, "Not implemented")
def show_container(self, account, container):
list_dir = glob.glob(os.path.join(self.data_dir, account, container, "*"))
data_list = list()
for _object in list_dir:
data_list.append({
"hash": hashlib.sha256(str.encode(_object)).hexdigest(),
"last_modified": time.strftime("%Y-%m-%dT%H:%M:%S", time.localtime(os.path.getmtime(_object))),
"bytes": os.stat(_object).st_size,
"name": os.path.basename(_object),
"content_type": "application/octet-stream"
})
return json.dumps(data_list)
def create_container(self, account, container):
if not os.path.isdir(os.path.join(self.data_dir, account, container)):
os.mkdir(os.path.join(self.data_dir, account, container))
cherrypy.response.status = 204
return
raise cherrypy.HTTPError(500, "Container already created")
def delete_container(self, account, container):
if not os.path.isdir(os.path.join(self.data_dir, account, container)):
raise cherrypy.HTTPError(404, "Container not found")
try:
os.rmdir(os.path.join(self.data_dir, account, container))
except OSError:
raise cherrypy.HTTPError(409, "Conflict")
cherrypy.response.status = 204
return "OK"
# shutil.rmtree((os.path.join(self.data_dir, account)))
def modify_container(self, account, container):
# TODO: modifications in header
return "modify_container {} {}".format(account, container)
def show_container_metadata(self, account, container):
if os.path.isdir(os.path.join(self.data_dir, account, container)):
# TODO: modifications in header
return "OK"
raise cherrypy.HTTPError(404, "Container not found")
def show_object(self, account, container, object):
if os.path.isfile(os.path.join(self.data_dir, account, container, object)):
# TODO: put metadata in headers
return open(os.path.join(self.data_dir, account, container, object), "rb").read()
raise cherrypy.HTTPError(404, "Object not found")
def create_object(self, account, container, object):
if not os.path.isdir(os.path.join(self.data_dir, account)):
raise cherrypy.HTTPError(404, "Account not found")
if not os.path.isdir(os.path.join(self.data_dir, account, container)):
raise cherrypy.HTTPError(404, "Container not found")
open(os.path.join(self.data_dir, account, container, object), "wb").write(self.__get_rawdata())
cherrypy.response.status = 201
return
def delete_object(self, account, container, object):
if not os.path.isfile(os.path.join(self.data_dir, account, container, object)):
raise cherrypy.HTTPError(404, "Object not found")
os.remove(os.path.join(self.data_dir, account, container, object))
cherrypy.response.status = 204
return
def copy_object(self, account, container, object):
if not os.path.isfile(os.path.join(self.data_dir, account, container, object)):
raise cherrypy.HTTPError(404, "Object not found")
# TODO: need to implement headers
raise cherrypy.HTTPError(500, "Not implemented")
def modify_object(self, account, container, object):
# TODO headers
raise cherrypy.HTTPError(500, "Not implemented")
def show_object_metadata(self, account, container, object):
# TODO headers
raise cherrypy.HTTPError(500, "Not implemented")
application = Swift()
cherrypy.config.update({
'server.socket_host': '127.0.0.1',
'server.socket_port': 8080,
})
cherrypy.quickstart(application)
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