1 files changed, 184 insertions, 0 deletions
diff --git a/Monitoring/plugins/nsca_client.py b/Monitoring/plugins/nsca_client.py
new file mode 100755
index 00000000..76e551db
--- /dev/null
+++ b/Monitoring/plugins/nsca_client.py
@@ -0,0 +1,184 @@
+### This is a very quick and dirty code for David so he can work on its sikuli agent
+# and report as nsca the results.
+# This need to be clean a lot, it's still a server and should be a client class :)
+# I can do it after my "new baby holidays" are finished ;)
+# J.Gabes
+
+
+
+import time
+import select
+import socket
+import struct
+import sys
+import random
+
+
+def decrypt_xor(data, key):
+    keylen = len(key)
+    crypted = [chr(ord(data[i]) ^ ord(key[i % keylen])) for i in xrange(len(data))]
+    return ''.join(crypted)
+
+
+
+#Just print some stuff
+class NSCA_client():
+    def __init__(self, host, port, encryption_method, password):
+        self.host = host
+        self.port = port
+        self.encryption_method = encryption_method
+        self.password = password
+        self.rng = random.Random(password)
+
+
+    #Ok, main function that is called in the CONFIGURATION phase
+    def get_objects(self):
+        print "[Dummy] ask me for objects to return"
+        r = {'hosts' : []}
+        h = {'name' : 'dummy host from dummy arbiter module',
+             'register' : '0',
+             }
+
+        r['hosts'].append(h)
+        print "[Dummy] Returning to Arbiter the hosts:", r
+        return r
+
+    def send_init_packet(self, socket):
+        '''
+        Build an init packet
+         00-127  : IV
+         128-131 : unix timestamp
+        '''
+        iv = ''.join([chr(self.rng.randrange(256)) for i in xrange(128)])
+        init_packet = struct.pack("!128sI", iv, int(time.mktime(time.gmtime())))
+        socket.send(init_packet)
+        return iv
+
+    def read_check_result(self, data, iv):
+        '''
+        Read the check result
+         00-01 : Version
+         02-05 : CRC32
+         06-09 : Timestamp
+         10-11 : Return code
+         12-75 : hostname
+         76-203 : service
+         204-715 : output of the plugin
+         716-720 : padding
+        '''
+        if len(data) != 720:
+            return None
+
+        if self.encryption_method == 1:
+            data = decrypt_xor(data,self.password)
+            data = decrypt_xor(data,iv)
+
+        (version, pad1, crc32, timestamp, rc, hostname_dirty, service_dirty, output_dirty, pad2) = struct.unpack("!hhIIh64s128s512sh",data)
+        hostname =  hostname_dirty.partition("\0", 1)[0]
+        service = service_dirty.partition("\0", 1)[0]
+        output = output_dirty.partition("\0", 1)[0]
+        return (timestamp, rc, hostname, service, output)
+
+    def post_command(self, timestamp, rc, hostname, service, output):
+        '''
+        Send a check result command to the arbiter
+        '''
+        if len(service) == 0:
+            extcmd = "[%lu] PROCESS_HOST_CHECK_RESULT;%s;%d;%s\n" % (timestamp,hostname,rc,output)
+        else:
+            extcmd = "[%lu] PROCESS_SERVICE_CHECK_RESULT;%s;%s;%d;%s\n" % (timestamp,hostname,service,rc,output)
+
+        print "want to send", extcmd
+        
+        #e = ExternalCommand(extcmd)
+        #self.from_q.put(e)
+
+
+    # When you are in "external" mode, that is the main loop of your process
+    def main(self):
+        #self.set_exit_handler()
+        self.interrupted = False
+        backlog = 5
+        size = 8192
+        server = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+        #server.setblocking(0)
+        server.connect((self.host, self.port))
+        #server.listen(backlog)
+        input = [server]
+        databuffer = {}
+        IVs = {}
+
+        init = server.recv(size)
+        print "got init", init
+        
+        #init_packet = struct.pack("!128sI",iv,int(time.mktime(time.gmtime())))
+        (iv, t) = struct.unpack("!128sI",init)
+        print "IV", iv
+        print "T", t
+
+        version = 0
+        pad1 = 0
+        crc32= 0
+        timestamp = int(time.time())
+        rc = 2
+        hostname_dirty = "moncul"
+        service_dirty = "fonctionnne"
+        output_dirty = "blablalba"
+        pad2=0
+        '''
+        Read the check result
+         00-01 : Version
+         02-05 : CRC32
+         06-09 : Timestamp
+         10-11 : Return code
+         12-75 : hostname
+         76-203 : service
+         204-715 : output of the plugin
+         716-720 : padding
+        '''
+        init_packet = struct.pack("!hhIIh64s128s512sh", version, pad1, crc32, timestamp, rc, hostname_dirty, service_dirty, output_dirty, pad2)
+        print "Create packent len", len(init_packet)
+        #(version, pad1, crc32, timestamp, rc, hostname_dirty, service_dirty, output_dirty, pad2) = struct.unpack("!hhIIh64s128s512sh",data)
+
+        data = decrypt_xor(init_packet,iv)        
+        data = decrypt_xor(data,self.password)
+
+
+        server.send(data)
+        sys.exit(0)
+
+        while not self.interrupted:
+            print "Loop"
+            inputready,outputready,exceptready = select.select(input,[],[], 1)
+
+            for s in inputready:
+                if s == server:
+                    # handle the server socket
+                    #client, address = server.accept()
+                    iv = self.send_init_packet(client)
+                    IVs[client] = iv
+                    input.append(client)
+                else:
+                    # handle all other sockets
+                    data = s.recv(size)
+                    if s in databuffer:
+                        databuffer[s] += data
+                    else:
+                        databuffer[s] = data
+                    if len(databuffer[s]) == 720:
+                        # end-of-transmission or an empty line was received
+                        (timestamp, rc, hostname, service, output)=self.read_check_result(databuffer[s],IVs[s])
+                        del databuffer[s]
+                        del IVs[s]
+                        self.post_command(timestamp,rc,hostname,service,output)
+                        try:
+                            s.shutdown(2)
+                        except Exception , exp:
+                            print exp
+                        s.close()
+                        input.remove(s)
+
+
+
+nsca = NSCA_client('localhost', 5667, 1, 'toto')
+nsca.main()