slave-key creation script

1 files changed, 80 insertions, 0 deletions

diff --git a/func/slave-keys.py b/func/slave-keys.py
new file mode 100644
index 0000000..dee0fd5
--- /dev/null
+++ b/func/slave-keys.py
@@ -0,0 +1,80 @@
+#!/usr/bin/python -tt
+
+import sys
+import os
+import os.path
+from OpenSSL import crypto
+import socket
+
+
+def_country = 'UN'
+def_state = 'FC'
+def_local = 'Func-ytown'
+def_org = 'func'
+def_ou = 'slave-key'
+
+cert_dir = '/home/skvidal/tmp/t'
+key_file = '%s/slave.pem' % cert_dir
+csr_file = '%s/slave.csr' % cert_dir
+
+
+def make_cert(dest=None):
+    pkey = crypto.PKey()
+    pkey.generate_key(crypto.TYPE_RSA, 2048)
+    if dest:
+        destfo = open(dest, 'w')
+        destfo.write(crypto.dump_privatekey(crypto.FILETYPE_PEM, pkey))
+        destfo.close()
+    
+    return pkey
+
+def make_csr(pkey, dest=None, cn=None):
+    req = crypto.X509Req()
+    req.get_subject()
+    subj  = req.get_subject()
+    subj.C = def_country
+    subj.ST = def_state
+    subj.L = def_local
+    subj.O = def_org
+    subj.OU = def_ou
+    if cn:
+        subj.CN = cn
+    else:
+        subj.CN = socket.getfqdn()
+    subj.emailAddress = 'root@%s' % subj.CN       
+        
+    req.set_pubkey(pkey)
+    req.sign(pkey, 'md5')
+    if dest:
+        destfo = open(dest, 'w')
+        destfo.write(crypto.dump_certificate_request(crypto.FILETYPE_PEM, req))
+        destfo.close()
+
+    return req
+
+def retrieve_key_from_file(keyfile):
+    fo = open(keyfile, 'r')
+    buf = fo.read()
+    keypair = crypto.load_privatekey(crypto.FILETYPE_PEM, buf)
+    return keypair
+    
+def main():
+    keypair = None
+    try:
+        if not os.path.exists(cert_dir):
+            os.makedirs(cert_dir)
+        if not os.path.exists(key_file):
+            keypair = make_cert(dest=key_file)
+        if not os.path.exists(csr_file):
+            if not keypair:
+                keypair = retrieve_key_from_file(key_file)
+            csr = make_csr(keypair, dest=csr_file)
+    except:
+        return 1
+        
+    return 0
+
+
+if __name__ == "__main__":
+   sys.exit(main())
+       
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