def _execute_http_request(self, http_request, action=None):
if http_request.method == 'POST':
http_request.body = urlencode(sorted(http_request.params.iteritems()))
if action:
http_request.params['Action'] = action
if getattr(self, 'APIVersion', None):
http_request.params['Version'] = self.APIVersion
# Stringify all the headers, or twisted's web client will be cranky.
http_request.headers = {k: str(v) for k, v in http_request.headers.iteritems()}
# Sign the request
log.debug('Token: %s' % self.provider.security_token)
http_request.authorize(connection=self)
# Only force header for non-s3 connections, because s3 uses
# an older signing method + bucket resource URLs that include
# the port info. All others should be now be up to date and
# not include the port.
if 's3' not in self._required_auth_capability():
if not getattr(self, 'anon', False):
self.set_host_header(http_request)
# Stringify all the headers, or twisted's web client will be cranky.
http_request.headers = {k: str(v) for k, v in http_request.headers.iteritems()}
url = str('%s://%s:%s%s' % (http_request.protocol, http_request.host, http_request.port, http_request.path))
log.debug('Method: %s' % http_request.method)
log.debug('URL: %s' % url)
log.debug('Data: %s' % http_request.body)
log.debug('Headers: %s' % http_request.headers)
log.debug('Params: %s' % http_request.params)
if http_request.method == 'POST':
response = yield getPage(
concurrent_key=self.concurrent_key(http_request),
concurrent_limit=MAX_PARALLEL,
method=http_request.method,
url=url,
headers=http_request.headers,
postdata=http_request.body,
agent=http_request.headers['User-Agent']
)
defer.returnValue(response)
elif http_request.method == 'GET':
response = yield getPage(
concurrent_key=self.concurrent_key(http_request),
concurrent_limit=MAX_PARALLEL,
method=http_request.method,
url=url,
headers=http_request.headers,
agent=http_request.headers['User-Agent']
)
defer.returnValue(response)
else:
raise Exception("http_request method %s not implemented" % http_request.method)
def doQuery(self, config, url, ds, startTime):
try:
key = (lookup_cwregion(ds.params['region']), ds.ec2accesskey)
result = yield getPage(
url,
concurrent_key=key,
concurrent_limit=ds.zAWSCloudWatchMaxParallel,
max_retries=ds.zAWSCloudWatchMaxRetries,
description=self.ds_description(config, ds))
defer.returnValue((ds, startTime, result))
except Exception, e:
defer.returnValue((ds, startTime, e))