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validators done

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This commit is contained in:
brent s. 2016-11-20 20:01:58 -05:00
parent 7b9be0b9d8
commit b626fcc8be
1 changed files with 48 additions and 13 deletions
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61
bdisk/host.py
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@ -3,6 +3,7 @@ import sys
import platform
import re
import configparser
import validators
from socket import getaddrinfo

def getOS():
@ -45,15 +46,10 @@ def getConfig(conf_file='/etc/bdisk/build.ini'):
return(conf)

def parseConfig(conf):
# The following are paths; c means create, e means must exist, ? means depends on other opts:
# build:basedir(e),build:archboot(c),build:isodir(c),build:mountpt(c),
# build:srcdir(c),build:tempdir(c),http:path(c?),tftp:path(c?),rsync:path (remote, no op)
# The following are files: ipxe:ssl_ca(e?),ipxe:ssl_cakey(e?),ipxe:ssl_crt(e?),ipxe:key(c)
# The following are URIs: ipxe:uri
# The rest are strings.
config = configparser.ConfigParser()
config._interpolation = configparser.ExtendedInterpolation()
config.read(conf)
# a dict makes this so much easier.
config_dict = {s:dict(config.items(s)) for s in config.sections()}
# Convert the booleans to pythonic booleans in the dict...
config_dict['bdisk']['user'] = config['bdisk'].getboolean('user')
@ -63,13 +59,52 @@ def parseConfig(conf):
config_dict['sync'][i] = config['sync'].getboolean(i)
config_dict['ipxe']['iso'] = config['ipxe'].getboolean('iso')
config_dict['ipxe']['usb'] = config['ipxe'].getboolean('usb')
# Validate the rsync host. Works for IP address too. It does NOT
# check to see if we can actually *rsync* to it; that'll come later.
try:
getaddrinfo(config_dict['rsync']['host'], None)
except:
exit(('ERROR: {0} is not a valid host that can be used for rsyncing.' +
'Check your configuration.').format(config_dict['rsync']['host']))
## VALIDATORS ##
# Are we rsyncing? If so, validate the rsync host.
# Works for IP address too. It does NOT check to see if we can
# actually *rsync* to it; that'll come later.
if config_dict['sync']['rsync']:
if (validators.domain(config_dict['rsync']['host']) or validators.ipv4(
config_dict['rsync']['host']) or validators.ipv6(
config_dict['rsync']['host'])):
try:
getaddrinfo(config_dict['rsync']['host'], None)
except:
exit(('ERROR: {0} does not resolve and cannot be used for rsyncing.' +
'Check your configuration.').format(config_dict['rsync']['host']))
else:
exit(('ERROR: {0} is not a valid host and cannot be used for rsyncing.' +
'Check your configuration.').format(config_dict['rsync']['host']))
# Validate the URI.
if config_dict['sync']['ipxe']:
# so this won't validate e.g. custom LAN domains (https://pxeserver/bdisk.php). TODO.
if not validators.url(config_dict['ipxe']['uri']):
if not re.match('^https?://localhost(/.*)?$'):
exit('ERROR: {0} is not a valid URL/URI. Check your configuration.'.format(
config_dict['ipxe']['uri']))
# Validate required paths
if not os.path.exists(config_dict['build']['basedir'] + '/extra'):
exit(("ERROR: {0} does not contain BDisk's core files!" +
"Check your configuration.").format(config_dict['build']['basedir']))
# Make dirs if they don't exist
for d in ('archboot', 'isodir', 'mountpt', 'srcdir', 'tempdir'):
os.makedirs(config_dict['build'][d], exists_ok = True)
# Make dirs for sync staging if we need to
for x in ('http', 'tftp'):
if config_dict['sync'][x]:
os.makedirs(config_dict[x]['path'], exist_ok = True)
# Hoo boy. Now we test paths for SSL in iPXE...
if config_dict['build']['ipxe']:
if config_dict['ipxe']['ssl_crt']:
for x in ('ssl_key', 'ssl_cakey'):
if config_dict['ipxe'][x]:
if not os.path.isfile(config_dict['ipxe'][x]):
exit(('ERROR: {0} is not an existing file. Check your' +
'configuration.').format(config_dict['ipxe'][x]))
if config_dict['ipxe']['ssl_ca']:
if not os.path.isfile(config_dict['ipxe']['ssl_ca']):
exit(('ERROR: {0} is not an existing file. Check your' +
'configuration.').format(config_dict['ipxe']['ssl_ca']))


return(config, config_dict)