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authorSimo Sorce <ssorce@redhat.com>2007-08-28 10:44:43 -0400
committerSimo Sorce <ssorce@redhat.com>2007-08-28 10:44:43 -0400
commit4702eb907585556d83b3373bf06705d83ae3ed2d (patch)
tree52bd9afd4dacd33cef17e51e37125d2834a73655
parentc7c8aa09269895a9cb9c02e87c5289a2461d647a (diff)
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Initial configuration library import
-rw-r--r--ipa-client/ipaclient/__init__.py5
-rw-r--r--ipa-client/ipaclient/ipachangeconf.py227
2 files changed, 229 insertions, 3 deletions
diff --git a/ipa-client/ipaclient/__init__.py b/ipa-client/ipaclient/__init__.py
index 66a4eb14b..c07a549a5 100644
--- a/ipa-client/ipaclient/__init__.py
+++ b/ipa-client/ipaclient/__init__.py
@@ -1,6 +1,5 @@
#! /usr/bin/python -E
-# Authors: Karl MacMillan <kmacmillan@mentalrootkit.com>
-# see inline
+# Authors: Simo Sorce <ssorce@redhat.com>
#
# Copyright (C) 2007 Red Hat
# see file 'COPYING' for use and warranty information
@@ -19,5 +18,5 @@
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
-__all__ = ["ipadiscovery"]
+__all__ = ["ipadiscovery", "ipachangeconf", "dnsclient"]
diff --git a/ipa-client/ipaclient/ipachangeconf.py b/ipa-client/ipaclient/ipachangeconf.py
new file mode 100644
index 000000000..31ba41805
--- /dev/null
+++ b/ipa-client/ipaclient/ipachangeconf.py
@@ -0,0 +1,227 @@
+#
+# ipachangeconf - configuration filke manipulation classes and functions
+# partially based on authconfig code
+# Copyright (c) 1999-2007 Red Hat, Inc.
+# Author: Simo Sorce <ssorce@redhat.com>
+#
+# This is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# General Public License for more details.
+#
+# 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 fcntl
+import os
+import string
+import time
+
+def openLocked(filename, perms):
+ fd = -1
+ try:
+ fd = os.open(filename, os.O_RDWR | os.O_CREAT, perms)
+
+ fcntl.lockf(fd, fcntl.LOCK_EX)
+ except OSError, (errno, strerr):
+ if fd != -1:
+ try:
+ os.close(fd)
+ except OSError:
+ pass
+ raise IOError(errno, strerr)
+ return os.fdopen(fd, "r+")
+
+class IPAChangeConf:
+
+ def __init__(self, name):
+ self.progname = name
+ self.optpre = (" ",)
+ self.doptpre = self.optpre[0]
+ self.assign = ("=",)
+ self.dassign = self.assign[0]
+ self.comment = ("#",)
+ self.dcomment = self.comment[0]
+ self.eol = ("\n",)
+ self.deol = self.eol[0]
+ #self.sectdel = ("[","]")
+ self.sectdel = ()
+
+ def setProgName(self, name):
+ self.progname = name
+
+ def setOptionPrefix(self, prefix):
+ self.optpre = prefix
+ self.doptpre = self.optpre[0]
+
+ def setOptionAssignment(self, assign):
+ self.assign = assign
+ self.dassign = self.assign[0]
+
+ def setCommentPrefix(self, comment):
+ self.comment = comment
+ self.dcomment = self.comment[0]
+
+ def setEndLine(self, eol):
+ self.eol = eol
+ self.deol = self.eol[0]
+
+ def setSectionDelimiters(self, delims):
+ self.sectdel = delims
+
+ def confDump(self, options):
+ output = ""
+
+ #pre conf options delimiter
+ output += self.deol
+ output += self.dcomment+"["+self.progname+"]--start-line--"+self.deol
+ output += self.deol
+ output += self.dcomment+" Generated by authconfig on " + time.strftime("%Y/%m/%d %H:%M:%S") + self.deol
+ output += self.dcomment+" DO NOT EDIT THIS SECTION (delimited by --start-line--/--end-line--)"+self.deol
+ output += self.dcomment+" Any modification may be deleted or altered by authconfig in future"+self.deol
+ output += self.deol
+
+ #set options
+ for opt in options:
+ if opt['action'] == "set":
+ output += self.doptpre+opt['name']+" "+self.dassign+" "+opt['value']+self.deol
+
+ #post conf options delimiter
+ output += self.deol
+ output += self.dcomment+"["+self.progname+"]--end-line--"+self.deol
+ output += self.deol
+
+ return output
+
+ def matchAutoEnd(self, line):
+ if line.endswith("]--end-line--"):
+ return True
+ return False
+
+ def matchAutoStart(self, line):
+ if line.endswith("]--start-line--"):
+ return True
+ return False
+
+ def matchComment(self, line):
+ for v in self.comment:
+ if line.strip().startswith(v):
+ return True
+ return False
+
+ def matchLineOption(self, line, opt):
+ parts = line.split(self.dassign, 1)
+ if len(parts) < 2:
+ return False
+ elif parts[0].split() == opt['name'].split():
+ return True
+ else:
+ return False
+
+ def matchSection(self, line):
+ cl = "".join(line.strip().split()).lower()
+ if len(self.sectdel) != 2:
+ return False
+ if not cl.startswith(self.sectdel[0]):
+ return False
+ if not cl.endswith(self.sectdel[1]):
+ return False
+ return cl[len(self.sectdel[0]):-len(self.sectdel[1])]
+
+ def getSectionLine(self, section):
+ if len(self.sectdel) != 2:
+ return section
+ return self.sectdel[0]+section+self.sectdel[1]+self.deol
+
+ def checkLineOption(self, line, options):
+ output = ""
+
+ # Check if this is a setting we care about.
+ for opt in options:
+ if self.matchLineOption(line.strip(), opt):
+ output = self.dcomment
+ break
+
+ output += line
+ return output;
+
+ # Write settings to configuration file
+ # file is a path
+ # options is a set of dictionaries in the form:
+ # [{'name': 'foo', 'value': 'bar', 'action': 'set/comment'}]
+ # section is a section name like 'global'
+ def changeConf(self, file, options, section=None):
+ autosection = False
+ savedsection = None
+ done = False
+ output = ""
+ f = None
+ try:
+ f = openLocked(file, 0644)
+
+ # Read in the old file.
+ for line in f:
+
+ if autosection:
+ if self.matchAutoEnd(line):
+ autosection = False
+ #skip all previous auto-generated lines
+ continue
+
+ if self.matchAutoStart(line):
+ autosection = True
+ continue
+
+ # If it's a comment, just pass it through.
+ if self.matchComment(line):
+ output += line
+ continue
+
+ # If it's a section start, note the section name.
+ value = self.matchSection(line)
+ if value:
+
+ # Here we are at start if a new section, if the previous one matches
+ # the specified section, dump here before starting the new one
+ # the comparison with section == None is intentional and matches the
+ # request to dump the options at the end of an implicit initial
+ # unmarked section before any section is started
+ if savedsection == section:
+ output += self.confDump(options)
+ done = True
+
+ savedsection = value
+ output += line
+ continue
+
+ # Comment out options we care about.
+ if savedsection == section:
+ output += self.checkLineOption(line, options)
+ continue
+
+ # Copy anything else as is.
+ output += line
+
+ if not done:
+ if section:
+ output += getSectionLine(section)
+ output += self.confDump(options)
+
+ # Write it out and close it.
+ f.seek(0)
+ f.truncate(0)
+ f.write(output)
+ finally:
+ try:
+ if f:
+ f.close()
+ except IOError:
+ pass
+ return True