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#!/usr/bin/python
import sys
import os
import shutil
import socket
import commands
from tempfile import NamedTemporaryFile
from initdutils import load_lsbinstall_info, save_lsbinstall_info
# These keep getting revised... *sigh*
objecttypes = (
#'init',
'profile',
'service',
'inet', # XXX - reenable when implemented
#'crontab',
#'man'
)
def installed_message(objectname):
print objectname, 'is installed'
def handle_generic_install(options, args, location, showinstloc=False):
filename = args[0]
basename = os.path.basename(filename)
instloc = os.path.join(location, basename)
package = args.package
filemap = load_lsbinstall_info()
fileinfo = filemap.get((package, filename))
if options.check:
if fileinfo and os.path.exists(fileinfo):
installed_message(fileinfo)
return
else:
sys.exit(1)
elif options.remove:
if os.path.exists(fileinfo):
try:
os.unlink(fileinfo)
except (IOError, OSError, os.error), why:
print >> sys.stderr, 'Removal of %s failed: %s' % (
instloc, str(why))
sys.exit(1)
# Remove it from the database, even if it was previously removed
del filemap[(package, filename)]
save_lsbinstall_info(filemap)
return
if os.path.exists(instloc) and options.package:
instloc = os.path.join(location, '%s.%s' % (options.package, basename))
if os.path.exists(instloc):
print >> sys.stderr, 'Unable to install %s: %s exists' % (
filename, instloc)
sys.exit(1)
if not os.path.exists(location):
try:
os.makedirs(location)
except (IOError, OSError, os.error), why:
print >> sys.stderr, 'Unable to create %s to install %s: %s' % (
location, filename, str(why))
sys.exit(1)
try:
shutil.copy2(filename, instloc)
except (IOError, os.error), why:
print >> sys.stderr, 'Installation of %s as %s failed: %s' % (
filename, instloc, str(why))
sys.exit(1)
if showinstloc:
print instloc
filemap[(package, filename)] = instloc
save_lsbinstall_info(filemap)
def handle_service(options, args):
# LSB says we don't actually have to remove these things...
if options.remove:
sys.exit(0)
pkg = options.package or '<unknown package>'
try:
pproto = args[0]
port, proto = pproto.split('/', 1)
port = int(port)
except:
print >> sys.stderr, 'You must specify a port/protocol pair as the first argument.'
sys.exit(2)
if options.check:
try:
serv = socket.getservbyport(port, proto)
except socket.error:
sys.exit(1)
print '%d/%s corresponds to service %s' % (port, proto, serv)
return
sname = args[1]
saliases = args[2:]
try:
serv = socket.getservbyport(port, proto)
except socket.error:
serv = None
if serv:
# Editing existing service
fpin = open('/etc/services')
fpout = NamedTemporaryFile('w', prefix='services-', dir='/etc')
newfname = fpout.name
for line in fpin:
line = line.rstrip()
if not line.startswith('#'):
lcomment = ''
if '#' in line:
line, lcomment = line.split('#', 1)
bits = line.split(None, 2)
lname, lpproto = bits[:2]
laliases = []
if len(bits) > 2:
laliases = bits[2].split()
lport, lproto = lpproto.split('/')
lport = int(lport)
if lport == port and lproto == proto:
# We've found the right line
if name != lname:
aliases += [name]
for a in aliases:
if a != lname and a not in laliases:
laliases += [a]
elif name == lname or name in laliases:
# name shows up, but in wrong protocol/port
print >> sys.stderr, 'Conflict between specified addition and /etc/services; aborting.'
fpout.close()
os.unlink(newfname)
sys.exit(1)
endbits = ''
if laliases:
endbits = ' '.join(laliases) + ' '
if lcomment:
endbits += '#'+lcomment
line = '%15s %15s %s' % lname, lpproto, endbits
line = line.rstrip()
print >> fpout, line
fpin.close()
fpout.close()
# Make sure /etc/services is always available
shutil.copy2('/etc/services', '/etc/services~')
os.rename(newfname, '/etc/services')
return
fp = open('/etc/services', 'a')
print >> fp, '%15s %15s %s # Added by lsbinstall for %s' % (
sname, pproto, ' '.join(saliases), pkg)
fp.close()
def handle_inet(options, args, parser):
cmd = 'update-inetd --group LSB '
alist = list(args[0].split(':'))
if len(alist) < 2:
parser.error("The operand must include a service and protocol.")
return
if not alist[1]:
alist[1] = 'tcp'
if options.remove:
parts = r'%s\s+.*\s+%s\s+.*' % (re.escape(alist[0], alist[1]))
cmd += '--remove '+commands.mkarg(parts)
elif options.check:
return
else:
if len(alist) != 6:
parser.error('The operand must have six colon-separated arguments.')
return
newalist = [alist[0], alist[2], alist[1]] + alist[3:]
cmd += '--add '+commands.mkarg('\t'.join(newalist))
os.system(cmd)
pass
def handle_man(options, args):
# Try to figure out the man page section
section = 1
location = '/usr/local/share/man/man%d/' % section
handle_generic_install(options, args, location)
def main():
from optparse import OptionParser
parser = OptionParser('usage: %prog [-r|-c] -t TYPE arguments...')
parser.add_option('-c', '--check', dest="check", default=False,
action="store_true", help='check whether or not an '
'object of this type is already installed')
parser.add_option('-r', '--remove', action="store_true",
dest="remove", default=False,
help='remove the named object')
parser.add_option('-t', '--type', dest="type", type='choice',
default=None, choices=objecttypes,
help='type of object to be '
'installed: one of %s' % ', '.join(objecttypes) )
parser.add_option('-p', '--package', dest="package", default=None,
help='LSB package to operate on')
(options, args) = parser.parse_args()
if len(args) < 1:
parser.error('You must specify at least one argument.')
elif (options.remove or options.check) and len(args) > 1:
parser.error('You may only specify one argument with --check or '
'--remove.')
if not options.type:
parser.error('You must specify an object type.')
if not options.package and options.type not in ['service']:
parser.error('You must specify a package with %s objects.' %
options.type)
if options.type == 'init':
if len(args) > 1:
parser.error('Only one argument supported for %s' % options.type)
handle_generic_install(options, args, '/etc/init.d', showinstloc=True)
elif options.type == 'profile':
if len(args) > 1:
parser.error('Only one argument supported for %s' % options.type)
# profile.d does nothing on Debian... sigh
handle_generic_install(options, args, '/etc/profile.d')
elif options.type == 'service':
if len(args) < 2 and not (options.remove or options.check):
parser.error('You must specify at least two arguments when adding a service entry.')
elif len(args) != 1 and (options.remove or options.check):
parser.error('You must specify one argument when removing or checking a service entry.')
handle_service(options, args)
elif options.type == 'inet':
handle_inet(options, args, parser)
elif options.type == 'crontab':
if len(args) > 1:
parser.error('Only one argument supported for %s' % options.type)
handle_generic_install(options, args, '/etc/cron.d')
elif options.type == 'man':
if len(args) > 1:
parser.error('Only one argument supported for %s' % options.type)
handle_man(options, args)
else:
print >> sys.stderr, 'Unsupported type %s' % options.type
sys.exit(1)
if __name__ == '__main__':
main()
|
