1 files changed, 94 insertions, 0 deletions
diff --git a/app/utils/ssh_conn.py b/app/utils/ssh_conn.py
new file mode 100644
index 0000000..d4b7954
--- /dev/null
+++ b/app/utils/ssh_conn.py
@@ -0,0 +1,94 @@
+###############################################################################
+# Copyright (c) 2017 Koren Lev (Cisco Systems), Yaron Yogev (Cisco Systems)   #
+# and others                                                                  #
+#                                                                             #
+# All rights reserved. This program and the accompanying materials            #
+# are made available under the terms of the Apache License, Version 2.0       #
+# which accompanies this distribution, and is available at                    #
+# http://www.apache.org/licenses/LICENSE-2.0                                  #
+###############################################################################
+import os
+
+from discover.configuration import Configuration
+from utils.inventory_mgr import InventoryMgr
+from utils.ssh_connection import SshConnection
+
+
+class SshConn(SshConnection):
+    config = None
+    ssh = None
+    connections = {}
+
+    max_call_count_per_con = 100
+    timeout = 15  # timeout for exec in seconds
+
+    def __init__(self, host_name, for_sftp=False):
+        self.config = Configuration()
+        self.env_config = self.config.get_env_config()
+        self.env = self.env_config['name']
+        self.conf = self.config.get('CLI')
+        self.gateway = None
+        self.host = None
+        self.host_conf = self.get_host_conf(host_name)
+        self.ssh = None
+        self.ftp = None
+        self.for_sftp = for_sftp
+        self.key = None
+        self.port = None
+        self.user = None
+        self.pwd = None
+        self.check_definitions()
+        super().__init__(self.host, self.user, _pwd=self.pwd, _key=self.key,
+                         _port=self.port, for_sftp=for_sftp)
+        self.inv = InventoryMgr()
+        if host_name in self.connections and not self.ssh:
+            self.ssh = self.connections[host_name]
+
+    def get_host_conf(self, host_name):
+        if 'hosts' in self.conf:
+            if not host_name:
+                raise ValueError('SshConn(): host must be specified ' +
+                                 'if multi-host CLI config is used')
+            if host_name not in self.conf['hosts']:
+                raise ValueError('host details missing: ' + host_name)
+            return self.conf['hosts'][host_name]
+        else:
+            return self.conf
+
+    def check_definitions(self):
+        try:
+            self.host = self.host_conf['host']
+            if self.host in self.connections:
+                self.ssh = self.connections[self.host]
+        except KeyError:
+            raise ValueError('Missing definition of host for CLI access')
+        try:
+            self.user = self.host_conf['user']
+        except KeyError:
+            raise ValueError('Missing definition of user for CLI access')
+        try:
+            self.key = self.host_conf['key']
+            if self.key and not os.path.exists(self.key):
+                raise ValueError('Key file not found: ' + self.key)
+        except KeyError:
+            pass
+        try:
+            self.pwd = self.host_conf['pwd']
+        except KeyError:
+            self.pwd = None
+        if not self.key and not self.pwd:
+            raise ValueError('Must specify key or password for CLI access')
+
+    gateway_hosts = {}
+
+    @staticmethod
+    def get_gateway_host(host):
+        if not SshConn.gateway_hosts.get(host):
+            ssh = SshConn(host)
+            gateway = ssh.exec('uname -n')
+            SshConn.gateway_hosts[host] = gateway.strip()
+        return SshConn.gateway_hosts[host]
+
+    def is_gateway_host(self, host):
+        gateway_host = self.get_gateway_host(host)
+        return host == gateway_host