implement most of sshbase

2003/12/23 13:22:24-06:00 (none)!desai

(Logical change 1.6)


git-svn-id: https://svn.mcs.anl.gov/repos/bcfg/trunk/bcfg2@22 ce84e21b-d406-0410-9b95-82705330c041

1 files changed, 63 insertions, 0 deletions

diff --git a/src/sshbase.py b/src/sshbase.py
index e69de29bb..14ddb45c0 100644
--- a/src/sshbase.py
+++ b/src/sshbase.py
@@ -0,0 +1,63 @@
+#!/usr/bin/env python
+
+from glob import glob
+from os import rename
+from socket import gethostbyname
+
+from Types import ConfigFile
+from Generator import Generator
+
+class sshbase(Generator):
+    __name__ = 'sshbase'
+    __version__ = '$Id: $'
+    __author__ = 'bcfg-dev@mcs.anl.gov'
+
+    __build__ = { '/etc/ssh/ssh_known_hosts':build_skn,
+                  '/etc/ssh/ssh_host_key':build_hk}
+    
+    def build_skn(self,name,client):
+        data=file("%s/ssh_known_hosts"%(self.data)).read()
+        ip=gethostbyname(client)
+        for hostkey in ["ssh_host_dsa_key.pub.H_%s","ssh_host_rsa_key.pub.H_%s","ssh_host_key.pub.H_%s"]:
+            filename="%s/%s"%(self.data,hostkey)%(client)
+            hdata=file(filename).read()
+            data+="%s,%s,%s %s"%(client,"%.mcs.anl.gov"%(client),ip,hdata)
+        return ConfigFile(name,'root','root','0644',data)
+
+    def build_hk(self,name,client):
+        reponame="%s/%s.H_%s"%(self.__data__,name.split('/')[-1],client)
+        try:
+            stat(reponame)
+        except IOError:
+            self.GenerateHostKeys(client)
+            self.GenerateKnownHosts()
+        # then we read the data file
+        keydata=file(reponame).read()
+        if "ssh_host_key.H_" in reponame:
+            return ConfigFile(name,'root','root','0600',keydata,'base64')
+        return ConfigFile(name,'root','root','0600',keydata)
+
+    def GenerateKnownHosts(self):
+        output=file("%s/ssh_known_hosts"%(self.__data__),'w')
+        for f in glob("%s/ssh_host_key.pub.H_*"%(self.__data__)) + glob("%s/ssh_host_*sa_key.pub.H_*"%(self.__data__)):
+            host=f.split('_')[-1]
+            data=file(f).read()
+            output.write("%s,%s.mcs.anl.gov,%s %s"%(host,host,gethostbyname(host),data))
+        output.close()
+
+    def GenerateHostKeys(self,client):
+        for hostkey in ["ssh_host_dsa_key.H_%s","ssh_host_rsa_key.H_%s","ssh_host_key.H_%s"]:
+            filename="%s/%s"%(self.data,hostkey)%(client)
+            if "ssh_host_rsa_key.H_" in filename:
+                keytype='rsa'
+            elif "ssh_host_dsa_key.H_" in filename:
+                keytype='dsa'
+            else:
+                keytype='rsa1'
+                
+            try:
+                stat(filename)
+            except:
+                system('ssh-keygen -f %s -N "" -t %s -C root@%s'%(filename,keytype,client))
+                rename("%s.pub"%(filename),".".join(filename.split('.')[:-1]+['pub']+filename.split('.')[-1]))
+        # call the notifier for global