RPMs Module - Verification Method

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First sorry for have sent the last mail twice, I had some problems with
the mail server.

Thanks Michael DeHaan and Phil for the help, the verification method is
working now :-) I also would like to thank Professor Chris for the help.

I had to use an asynchronous call to solve the socket time out problem.

This method should be added in the rpms module, after the inventory
method. I am sending the modified rpms.py file as an attachment.

-----------
    def verify(self, flatten=True):
        """
        Returns information of the verification of all installed packages.
        """
        import commands
        ts = rpm.TransactionSet()
        mi = ts.dbMatch()
        results = []
        for hdr in mi:
            checksum = commands.getoutput("rpm -V " + hdr['name'])
            if flatten:
                results.append("%s" % (checksum))
            else:
                results.append([checksum])
        return results
-----------

To call the method, just
#func <machine> call -a rpms verify

How the RPM api in python does not have any function for verification, I
had to use the external command. I think the rpm api in python is not
very complete.






-- 
----------------------------------------------------
[] ' s
Milton Paiva Neto
milton.paiva@xxxxxxxxx
mpaivaneto@xxxxxxxxxxxxxxxxxxx
http://miltonpaiva.wordpress.com/
http://zenit.senecac.on.ca/wiki/index.php/Func/Rpms_Module_-_Function_Verify
# Copyright 2007, Red Hat, Inc
# Michael DeHaan <mdehaan@xxxxxxxxxx>
#
# This software may be freely redistributed under the terms of the GNU
# general public license.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

import func_module
import rpm

class RpmModule(func_module.FuncModule):

    version = "0.0.2"
    api_version = "0.0.1"
    description = "RPM related commands."

#    def test(self):
#       import commands
#       return list([ { package.split(" ")[0] : commands.getoutput("rpm -V " + package.split(" ")[0]).split("\n") } for package in self.inventory()[0] ])

    def inventory(self, flatten=True):
        """
        Returns information on all installed packages.
        By default, 'flatten' is passed in as True, which makes printouts very
        clean in diffs for use by func-inventory.  If you are writting another
        software application, using flatten=False will prevent the need to 
        parse the returns.
        """
        # I have not been able to get flatten=False to work if there 
        # is more than 491 entries in the dict -- ashcrow
        ts = rpm.TransactionSet()
        mi = ts.dbMatch()
        results = []
        for hdr in mi:
            name = hdr['name']
            epoch = (hdr['epoch'] or 0)
            version = hdr['version']
            release = hdr['release']
            arch = hdr['arch']
            if flatten:
                results.append("%s %s %s %s %s" % (name, epoch, version, 
                                                   release, arch))
            else:
                results.append([name, epoch, version, release, arch])
        return results

    def verify(self, flatten=True):
        """
        Returns information of the verification of all installed packages.
        """
	import commands
	ts = rpm.TransactionSet()
        mi = ts.dbMatch()
        results = []
        for hdr in mi:
	    checksum = commands.getoutput("rpm -V " + hdr['name'])
            if flatten:
                results.append("%s" % (checksum))
            else:
                results.append([checksum])
	return results 

    def glob(self, pattern, flatten=True):
        """
        Return a list of installed packages that match a pattern
        """
        ts = rpm.TransactionSet()
        mi = ts.dbMatch()
        results = []
        if not mi:
            return
        mi.pattern('name', rpm.RPMMIRE_GLOB, pattern)
        for hdr in mi:
            name = hdr['name']
            epoch = (hdr['epoch'] or 0)
            version = hdr['version']
            release = hdr['release']
            # gpg-pubkeys have no arch
            arch = (hdr['arch'] or "")

            if flatten:
                results.append("%s %s %s %s %s" % (name, epoch, version,
                                                       release, arch))
            else:
                results.append([name, epoch, version, release, arch])
        return results

    def register_method_args(self):
        """
        Implementing the method argument getter
        """

        return {
                'inventory':{
                    'args':{
                        'flatten':{
                            'type':'boolean',
                            'optional':True,
                            'default':True,
                            'description':"Print clean in difss"
                            }
                        },
                    'description':"Returns information on all installed packages"
                    },
                'glob':{
                    'args':{
                        'pattern':{
                            'type':'string',
                            'optional':False,
                            'description':"The glob packet pattern"
                            },
                        'flatten':{
                            'type':'boolean',
                            'optional':True,
                            'default':True,
                            'description':"Print clean in difss"
                                }
                        },
                    'description':"Return a list of installed packages that match a pattern"
                    }
                }
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