Add sftp and ftp download

Implement download nsd or vnfd
package by sftp or ftp.

Change-Id: I5d45ae22a358a3ff1363bf3e0b23fa989e72841b
Issue-ID: VFC-141
Signed-off-by: ying.yunlong <ying.yunlong@zte.com.cn>

3 files changed, 46 insertions, 0 deletions

diff --git a/lcm/pub/utils/toscaparser/basemodel.py b/lcm/pub/utils/toscaparser/basemodel.py
index dbb76310..351f0935 100644
--- a/lcm/pub/utils/toscaparser/basemodel.py
+++ b/lcm/pub/utils/toscaparser/basemodel.py
@@ -13,12 +13,14 @@
 # limitations under the License.
 
 import copy
+import ftplib
 import json
 import os
 import re
 import shutil
 import urllib
 
+import paramiko
 from toscaparser.functions import GetInput
 from toscaparser.tosca_template import ToscaTemplate
 
@@ -115,6 +117,32 @@ class BaseInfoModel(object):
             self.ftp_get(userName, userPwd, hostIp, hostPort, remoteFileName, localFileName)
         return localFileName
 
+    def sftp_get(self, userName, userPwd, hostIp, hostPort, remoteFileName, localFileName):
+        # return
+        t = None
+        try:
+            t = paramiko.Transport(hostIp, int(hostPort))
+            t.connect(username=userName, password=userPwd)
+            sftp = paramiko.SFTPClient.from_transport(t)
+            sftp.get(remoteFileName, localFileName)
+        finally:
+            if t != None:
+                t.close()
+
+
+    def ftp_get(self, userName, userPwd, hostIp, hostPort, remoteFileName, localFileName):
+        f = None
+        try:
+            ftp = ftplib.FTP()
+            ftp.connect(hostIp, hostPort)
+            ftp.login(userName, userPwd)
+            f = open(localFileName, 'wb')
+            ftp.retrbinary('RETR ' + remoteFileName, f.write, 1024)
+            f.close()
+        finally:
+            if f != None:
+                f.close()
+
     def buidMetadata(self, tosca):
         if 'metadata' in tosca.tpl:
             self.metadata = copy.deepcopy(tosca.tpl['metadata'])
@@ -282,3 +310,19 @@ class BaseInfoModel(object):
             if node['name'] == name:
                 return node
         return None
+
+    def get_all_nested_ns(self, nodes):
+        nss = []
+        for node in nodes:
+            if self.is_nested_ns(node):
+                ns = {}
+                ns['ns_id'] = node['name']
+                ns['description'] = node['description']
+                ns['properties'] = node['properties']
+                ns['networks'] = self.get_networks(node)
+
+                nss.append(ns)
+        return nss
+
+    def is_nested_ns(self, node):
+        return node['nodeType'].upper().find('.NS.') >= 0 or node['nodeType'].upper().endswith('.NS')
diff --git a/lcm/pub/utils/toscaparser/nsdmodel.py b/lcm/pub/utils/toscaparser/nsdmodel.py
index b25c5e0f..e13f0265 100644
--- a/lcm/pub/utils/toscaparser/nsdmodel.py
+++ b/lcm/pub/utils/toscaparser/nsdmodel.py
@@ -42,6 +42,7 @@ class EtsiNsdInfoModel(BaseInfoModel):
         self.ns_exposed = self.get_all_endpoint_exposed(tosca.topology_template)
         self.policies = self._get_policies_scaling(tosca.topology_template.policies)
         self.ns_flavours = self.get_all_flavour(tosca.topology_template.groups)
+        self.nested_ns = self.get_all_nested_ns(nodeTemplates)
 
 
     def buildInputs(self, top_inputs):
diff --git a/requirements.txt b/requirements.txt
index e9f7ce6b..9fb0e899 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -26,4 +26,5 @@ mock==2.0.0
 unittest_xml_reporting==1.12.0
 
 # for parser
+paramiko==2.0.2
 nfv-toscaparser==0.5.0.dev95