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173 lines
6.2 KiB
173 lines
6.2 KiB
#!/usr/bin/python2
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import cgi, os, socket, sys, urllib2
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import common
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from multiprocessing import pool
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from autotest_lib.frontend import setup_django_environment
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from autotest_lib.client.common_lib import global_config
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from autotest_lib.client.bin import utils
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from autotest_lib.frontend.afe.json_rpc import serviceHandler
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from autotest_lib.server import system_utils
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from autotest_lib.server import utils as server_utils
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_PAGE = """\
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Status: 302 Found
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Content-Type: text/plain
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Location: %s\r\n\r
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"""
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VIEWER_PREFIX = 'stainless.corp.google.com/browse/'
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# Define function for retrieving logs
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def _retrieve_logs_dummy(job_path):
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pass
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site_retrieve_logs = utils.import_site_function(__file__,
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"autotest_lib.tko.site_retrieve_logs", "site_retrieve_logs",
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_retrieve_logs_dummy)
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site_find_repository_host = utils.import_site_function(__file__,
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"autotest_lib.tko.site_retrieve_logs", "site_find_repository_host",
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_retrieve_logs_dummy)
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form = cgi.FieldStorage(keep_blank_values=True)
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# determine if this is a JSON-RPC request. we support both so that the new TKO
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# client can use its RPC client code, but the old TKO can still use simple GET
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# params.
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_is_json_request = form.has_key('callback')
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# if this key exists, we check if requested log exists in local machine,
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# and do not return Google Storage URL when the log doesn't exist.
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_local_only = form.has_key('localonly')
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def _get_requested_path():
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if _is_json_request:
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request_data = form['request'].value
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request = serviceHandler.ServiceHandler.translateRequest(request_data)
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parameters = request['params'][0]
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return parameters['path']
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return form['job'].value
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def _check_result(args):
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host = args['host']
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job_path = args['job_path']
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shard = args['shard']
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if shard:
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http_path = 'http://%s/tko/retrieve_logs.cgi?localonly&job=%s' % (
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host, job_path)
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else:
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http_path = 'http://%s%s' % (host, job_path)
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try:
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# HACK: This urlopen call isn't forwarding HTTP headers correctly. This
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# leads to uberproxy sitting between master (orignator of this request)
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# and shard (target of the request) to redirect to the the login page.
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# We detect this condition and reject the target shard as a viable
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# redirect. The implication is that we will not redirect to the shard
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# even if the user could themselves access the shard with the correct
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# credentials.
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u = utils.urlopen(http_path)
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redirected_url = u.geturl()
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if 'accounts.google.com' in redirected_url:
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return None
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# On Vms the shard name is set to the default gateway but the
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# browser used to navigate frontends (that runs on the host of
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# the vms) is immune to the same NAT routing the vms have, so we
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# need to replace the gateway with 'localhost'.
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if utils.DEFAULT_VM_GATEWAY in host:
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normalized_host = host.replace(utils.DEFAULT_VM_GATEWAY, 'localhost')
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else:
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try:
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normalized_host = utils.normalize_hostname(host)
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except socket.herror:
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# Ignore error: 'socket.herror: [Errno 1] Unknown host'
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# This can happen when reverse name lookup is not stable.
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normalized_host = host
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return 'http', normalized_host, job_path
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except urllib2.URLError:
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return None
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def _get_tpool_args(hosts, job_path, is_shard, host_set):
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"""Get a list of arguments to be passed to multiprocessing.pool.ThreadPool.
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@param hosts: a list of host names.
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@param job_path: a requested job path.
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@param is_shard: True if hosts are shards, False otherwise.
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@param host_set: a Set to filter out duplicated hosts.
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@return: a list of dictionaries to be used as input of _check_result().
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"""
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args = []
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for host in hosts:
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host = host.strip()
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if host and host != 'localhost' and host not in host_set:
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host_set.add(host)
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arg = {'host': host, 'job_path': job_path, 'shard': is_shard}
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args.append(arg)
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return args
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def find_repository_host(job_path):
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"""Find the machine holding the given logs and return a URL to the logs"""
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site_repo_info = site_find_repository_host(job_path)
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if site_repo_info is not None:
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return site_repo_info
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# This cgi script is run only in master (cautotest) and shards.
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# Drones do not run this script when receiving '/results/...' request.
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# Only master should check drones and shards for the requested log.
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# Also restricted users do not have access to drones or shards,
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# always point them to localhost or google storage.
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if (not server_utils.is_shard() and
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not server_utils.is_restricted_user(os.environ.get('REMOTE_USER'))):
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drones = system_utils.get_drones()
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shards = system_utils.get_shards()
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host_set = set()
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tpool_args = _get_tpool_args(drones, job_path, False, host_set)
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tpool_args += _get_tpool_args(shards, job_path, True, host_set)
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tpool = pool.ThreadPool()
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for result_path in tpool.imap_unordered(_check_result, tpool_args):
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if result_path:
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return result_path
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# If the URL requested is a test result, it is now either on the local
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# host or in Google Storage.
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if job_path.startswith('/results/'):
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# We only care about the path after '/results/'.
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job_relative_path = job_path[9:]
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if not _local_only and not os.path.exists(
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os.path.join('/usr/local/autotest/results',
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job_relative_path)):
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gsuri = utils.get_offload_gsuri().split('gs://')[1]
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return ['https', VIEWER_PREFIX, gsuri + job_relative_path]
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def get_full_url(info, log_path):
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if info is not None:
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protocol, host, path = info
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prefix = '%s://%s' % (protocol, host)
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else:
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prefix = ''
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path = log_path
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if _is_json_request:
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return '%s/tko/jsonp_fetcher.cgi?%s' % (prefix,
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os.environ['QUERY_STRING'])
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else:
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return prefix + path
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log_path = _get_requested_path()
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info = find_repository_host(log_path)
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site_retrieve_logs(log_path)
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print _PAGE % get_full_url(info, log_path)
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