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Mister Spy

# This file is part of the sos project: https://github.com/sosreport/sos
#
# This copyrighted material is made available to anyone wishing to use,
# modify, copy, or redistribute it subject to the terms and conditions of
# version 2 of the GNU General Public License.
#
# See the LICENSE file in the source distribution for further information.

from sos.report.plugins import Plugin, IndependentPlugin


class LibvirtClient(Plugin, IndependentPlugin):

    short_desc = 'client for libvirt virtualization API'

    plugin_name = 'virsh'
    profiles = ('system', 'virt')

    packages = ('libvirt-client',)

    def setup(self):
        # virt-manager logs
        self.add_copy_spec([
            "/root/.cache/virt-manager/*.log",
            "/root/.virt-manager/*.log"
        ])

        cmd = 'virsh -r'

        # get host information
        subcmds = [
            'domcapabilities',
            'capabilities',
            'nodeinfo',
            'freecell --all',
            'node-memory-tune',
            'version',
            'pool-capabilities',
            'nodecpumap',
            'maxvcpus kvm',
            'sysinfo',
            'nodedev-list --tree',
        ]

        for subcmd in subcmds:
            self.add_cmd_output('%s %s' % (cmd, subcmd), foreground=True)

        self.add_cmd_output("%s list --all" % cmd,
                            tags="virsh_list_all", foreground=True)

        # get network, pool and nwfilter elements
        for k in ['net', 'nwfilter', 'pool']:
            k_list = self.collect_cmd_output('%s %s-list %s' % (cmd, k, '--all'
                                             if k in ['net', 'pool'] else ''),
                                             foreground=True)
            if k_list['status'] == 0:
                k_lines = k_list['output'].splitlines()
                # the 'Name' column position changes between virsh cmds
                # catch the rare exceptions when 'Name' is not found
                try:
                    pos = k_lines[0].split().index('Name')
                except Exception:
                    continue
                for j in filter(lambda x: x, k_lines[2:]):
                    n = j.split()[pos]
                    self.add_cmd_output('%s %s-dumpxml %s' % (cmd, k, n),
                                        foreground=True)

        # cycle through the VMs/domains list, ignore 2 header lines and latest
        # empty line, and dumpxml domain name in 2nd column
        domains_output = self.exec_cmd('%s list --all' % cmd, foreground=True)
        if domains_output['status'] == 0:
            domains_lines = domains_output['output'].splitlines()[2:]
            for domain in filter(lambda x: x, domains_lines):
                d = domain.split()[1]
                for x in ['dumpxml', 'dominfo', 'domblklist']:
                    self.add_cmd_output('%s %s %s' % (cmd, x, d),
                                        foreground=True)

        nodedev_output = self.exec_cmd(
            '{0} nodedev-list'.format(cmd), foreground=True)
        if nodedev_output['status'] == 0:
            for n in nodedev_output['output'].splitlines():
                self.add_cmd_output(
                    '{0} nodedev-dumpxml {1}'.format(cmd, n), foreground=True)

    def postproc(self):
        match_exp = r"(\s*passwd\s*=\s*\")([^\"]*)(\".*)"
        virsh_path_exps = [
            r"/root/\.cache/virt-manager/.*\.log",
            r"/root/\.virt-manager/.*\.log"
        ]
        for path_exp in virsh_path_exps:
            # Scrub passwords in virt-manager logs
            # Example of scrubbing:
            #
            #   passwd="hackme"
            # To:
            #   passwd="******"
            #
            self.do_path_regex_sub(path_exp, match_exp, r"\1******\3")
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