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import Bcfg2.Server.Plugin
import re
import lxml.etree
def linesub(pattern, repl, filestring):
'''Substitutes instances of pattern with repl in filestring'''
if filestring == None:
filestring = ''
output = list()
fileread = filestring.split('\n')
for line in fileread:
output.append(re.sub(pattern, repl, filestring))
return '\n'.join(output)
class EditDirectives(Bcfg2.Server.Plugin.SpecificData):
'''This object handles the editing directives'''
def ProcessDirectives(self, input):
'''Processes a list of edit directives on input'''
temp = input
for directive in self.data.split('\n'):
directive = directive.split(',')
temp = linesub(directive[0], directive[1], temp)
return temp
class EditEntrySet(Bcfg2.Server.Plugin.EntrySet):
def __init__(self, basename, path, entry_type, encoding):
self.ignore = re.compile("^(\.#.*|.*~|\\..*\\.(tmp|sw[px])|%s\.H_.*)$" %path.split('/')[-1])
Bcfg2.Server.Plugin.EntrySet.__init__(self, basename, path, entry_type, encoding)
self.inputs = dict()
def bind_entry(self, entry, metadata):
client = metadata.hostname
filename = entry.get('name')
permdata = {'owner':'root', 'group':'root'}
permdata['perms'] = '0644'
[entry.attrib.__setitem__(key, permdata[key]) for key in permdata]
entry.text = self.entries['edits'].ProcessDirectives(self.get_client_data(client))
if not entry.text:
entry.set('empty', 'true')
try:
f = open('%s/%s.H_%s' %(self.path, filename.split('/')[-1], client), 'w')
f.write(entry.text)
f.close()
except:
pass
def get_client_data(self, client):
return self.inputs[client]
class Editor(Bcfg2.Server.Plugin.GroupSpool,
Bcfg2.Server.Plugin.Probing):
name = 'Editor'
__version__ = '$Id$'
__author__ = 'bcfg2-dev@mcs.anl.gov'
filename_pattern = 'edits'
es_child_cls = EditDirectives
es_cls = EditEntrySet
def GetProbes(self, _):
'''Return a set of probes for execution on client'''
probelist = list()
for name in self.entries.keys():
probe = lxml.etree.Element('probe')
probe.set('name', name)
probe.set('source', "Editor")
probe.text = "cat %s" %name
probelist.append(probe)
return probelist
def ReceiveData(self, client, datalist):
for data in datalist:
self.entries[data.get('name')].inputs[client.hostname] = data.text
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