OOF design framework seed code

Issue-ID: OPTFRA-18
Change-Id: Ib44b06f7184cb49f90d5936edd82cba44068b1c8
Signed-off-by: Sastry Isukapalli <sastry@research.att.com>

1 files changed, 90 insertions, 0 deletions

diff --git a/utils/interfaces.py b/utils/interfaces.py
new file mode 100644
index 0000000..7a0e3a9
--- /dev/null
+++ b/utils/interfaces.py
@@ -0,0 +1,90 @@
+# -------------------------------------------------------------------------
+#   Copyright (c) 2015-2017 AT&T Intellectual Property
+#
+#   Licensed under the Apache License, Version 2.0 (the "License");
+#   you may not use this file except in compliance with the License.
+#   You may obtain a copy of the License at
+#
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+#   Unless required by applicable law or agreed to in writing, software
+#   distributed under the License is distributed on an "AS IS" BASIS,
+#   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#   See the License for the specific language governing permissions and
+#   limitations under the License.
+#
+# -------------------------------------------------------------------------
+#
+
+import requests
+
+from osdf.config.base import osdf_config, creds_prefixes
+from osdf.logging.osdf_logging import MH, debug_log
+
+
+def get_rest_client(request_json, service):
+    """Get a RestClient based on request_json's callback URL and osdf_config's credentials based on service name
+    :param request_json:
+    :param service: so or cm
+    :return: rc -- RestClient
+    """
+    callback_url = request_json["requestInfo"]["callbackUrl"]
+    prefix = creds_prefixes[service]
+    config = osdf_config.deployment
+    c_userid, c_passwd = config[prefix + "Username"], config[prefix + "Password"]
+    return RestClient(url=callback_url, userid=c_userid, passwd=c_passwd)
+
+
+class RestClient(object):
+    """Simple REST Client that supports get/post and basic auth"""
+
+    def __init__(self, userid=None, passwd=None, log_func=None, url=None, timeout=None, headers=None,
+                 method="POST", req_id=None):
+        self.auth = (userid, passwd) if userid and passwd else None
+        self.headers = headers if headers else {}
+        self.method = method
+        self.url = url
+        self.log_func = log_func
+        self.timeout = (30, 90) if timeout is None else timeout
+        self.req_id = req_id
+
+    def add_headers(self, headers):
+        self.headers.update(headers)
+
+    def request(self, url=None, method=None, asjson=True, ok_codes=(2, ),
+                raw_response=False, noresponse=False, timeout=None, **kwargs):
+        """
+        :param url: REST end point to query
+        :param method: GET or POST (default is None => self.method)
+        :param asjson: whether the expected response is in json format
+        :param ok_codes: expected codes (prefix matching -- e.g. can be (20, 21, 32) or (2, 3))
+        :param noresponse: If no response is expected (as long as response codes are OK)
+        :param raw_response: If we need just the raw response (e.g. conductor sends transaction IDs in headers)
+        :param timeout: Connection and read timeouts
+        :param kwargs: Other parameters
+        :return:
+        """
+        if not self.req_id:
+            debug_log.debug("Requesting URL: {}".format(url or self.url))
+        else:
+            debug_log.debug("Requesting URL: {} for request ID: {}".format(url or self.url, self.req_id))
+
+        res = requests.request(url=url or self.url, method=method or self.method,
+                               auth=self.auth, headers=self.headers,
+                               timeout=timeout or self.timeout, **kwargs)
+
+        if self.log_func:
+            self.log_func(MH.received_http_response(res))
+
+        res_code = str(res.status_code)
+        if not any(res_code.startswith(x) for x in map(str, ok_codes)):
+            raise res.raise_for_status()
+
+        if raw_response:
+            return res
+        elif noresponse:
+            return None
+        elif asjson:
+            return res.json()
+        else:
+            return res.content