Всем привет, нужна ваша помощь. Надо вытягивать информацию с cdn провайдера level3, с помощью API. Ключ API и секретный ключ есть. На офф сайте есть вот такой скрипт на python (перепробовал много разных вариантов с этим скриптом, но так и не понял как мне вытянуть инфу):
from datetime import datetime
import hmac
import hashlib
import base64
import urllib2, urllib
from xml.dom import minidom
class ForbiddenException(Exception):
pass
def _convert(val):
if isinstance(val, basestring):
if val.isdigit():
return int(val)
try:
return float(val)
except:
pass
return val
class NodeTraverser(object):
def __init__(self, node):
self.node = node
def keys(self):
return self.node._attrs.keys()
def children_keys(self):
result = []
for child in self.node.childNodes:
result.append(child.tagName)
return result
@property
def children(self):
return [NodeTraverser(n) for n in self.node.childNodes]
def getattribute(self, name):
return self.node.getAttribute(name)
def getnode(self, name):
for child in self.node.childNodes:
if child.tagName == name:
return NodeTraverser(child)
def __getattr__(self, name):
if type(name) == int or name.isdigit():
return self.children[int(name)]
if self.node.hasAttribute(name):
return self.getattribute(name)
return self.getnode(name)
__getitem__ = __getattr__
@property
def val(self):
if self.node.nodeType == self.node.TEXT_NODE:
return _convert(self.node.data)
for node in self.node.childNodes:
if node.nodeType == node.TEXT_NODE:
return _convert(node.wholeText)
return None
def html(self):
return self.node.toxml()
class XMLWrapper(object):
def __init__(self, xml):
self.xml = xml
self.dom = minidom.parseString(xml)
setattr(self, self.dom.documentElement.tagName, NodeTraverser(self.dom.documentElement))
class Level3Service(object):
"""
Parameters :
key_id(required)
secret(required)
service_url : optional that defaults to https://mediaportal.level3.com:443
content_type : optional that defaults to text/xml
resource : optional that defaults to /api/v1.0
method : optional that defaults to GET
wrap : optional that defaults to True. Will wrap the results in a friendly
class that allows you to easily retrieve the values from the xml(see example).
Example Usages:
>>> from level3 import Level3Service
>>> service = Level3Service('<key id>', '<secret>')
>>> result = service('rtm/<access group>', {'serviceType' : 'caching', 'accessGroupChildren' : 'false', 'geo' : 'none' })
>>> result.accessGroup.missPerSecond.val
50.67
>>> result.accessGroup.metros[0].name
Atlanta, GA
>>> result.accessGroup.metros[0].region
North America
>>> result.accessGroup.metros[0].requestsPerSecond.val
600.45
"""
def __init__(self, key_id, secret,
service_url="",
content_type='text/xml', resource="/api/v1.0", method="GET",
wrap=True):
self.key_id = key_id
self.secret = secret
self.service_url = service_url
self.content_type = content_type
self.resource = resource
self.method = method
self.current_date = datetime.utcnow()
self.wrap = wrap
def gen_new_date(self):
self.current_date = datetime.utcnow()
@property
def formatted_date(self):
return self.current_date.strftime("%a, %d %b %Y %H:%M:%S GMT")
def generate_auth_string(self, method):
authstring = "%s\n%s/%s/%s\n%s\n%s\n" % (
self.formatted_date,
self.service_url.rstrip('/'),
self.resource.strip('/'),
method.strip('/'),
self.content_type,
self.method
)
hash = hmac.new(self.secret, authstring, hashlib.sha1).digest()
return "MPA %s:%s" % (self.key_id, base64.b64encode(hash))
def __call__(self, method, options={}):
self.gen_new_date()
url = "https://ws.level3.com" + self.service_url.rstrip('/') + '/' + self.resource.strip('/')
url = url + '/' + method.strip('/')
headers = {
'Date' : self.formatted_date,
'Authorization' : self.generate_auth_string(method),
'Content-Type' : self.content_type
}
req_opts = {'headers' : headers}
if options:
encoded = urllib.urlencode(options)
if self.method.upper() == 'GET':
url += '?' + encoded
else:
req_opts['data'] = encoded
req = urllib2.Request(url, **req_opts)
try:
result = urllib2.urlopen(req)
except urllib2.HTTPError, ex:
if ex.getcode() == 403:
raise ForbiddenException("something went wrong authorizing this request. %s" % str(ex.readlines()))
else:
raise Exception("There was an erorr %s" % str(ex.readlines()))
data = result.read()
if self.wrap:
data = XMLWrapper(data)
return data
