3 # Interactively prompts for variable values
4 # expected arguments are
5 # command -d [default-xml [custom-xml [ consolidated-xml ]]]
7 # -d is for the myplc-devel package
9 # we use 3 instances of PLCConfiguration throughout:
10 # cdef : models the defaults, from plc_default.xml
11 # cread : merged from plc_default & configs/site.xml
12 # cwrite : site.xml + pending changes
19 import distutils.file_util
20 from optparse import OptionParser
22 from geni.util.config import Config
23 from geni.util.hierarchy import *
24 from geni.util.misc import *
27 all_variables = ["GENI_REGISTRY_ROOT_AUTH",
28 "GENI_REGISTRY_LEVEL1_AUTH",
29 "GENI_REGISTRY_ENABLED",
32 "GENI_AGGREGATE_ENABLED",
33 "GENI_AGGREGATE_HOST",
34 "GENI_AGGREGATE_PORT",
44 usual_variables = ["GENI_REGISTRY_ROOT_AUTH",
45 "GENI_REGISTRY_LEVEL1_AUTH",
51 mainloop_usage= """Available commands:
52 u/U\t\t\tEdit usual variables
53 w/W\t\t\tWrite / Write & reload
54 q\t\t\tQuit (without saving)
57 l/L [<var>]\tShow Locally modified variables/values
58 s/S [<var>]\tShow all current variables/values
59 e/E [<var>]\tEdit variables (all, in category, single)
63 command_usage="%prog [options]"
65 Unless you specify the -d option, meaning you want to configure
66 using defaults without interactive prompts"""
68 variable_usage= """Edit Commands :
69 .\tStops prompting, return to mainloop
70 =\tShows default value
74 def save_config(changes, config_file):
75 # always validate before saving
76 changes = validate(changes)
78 cfile = open(config_file, 'r')
79 lines = cfile.readlines()
84 for variable in changes:
85 if line.startswith(variable+'='):
87 value = int(changes[variable])
88 newline = '%s=%s\n' % (variable, value)
89 newlines.append(newline)
91 value = changes[variable]
92 newline = '%s="%s"\n' % (variable, value)
93 newlines.append(newline)
99 cfile = open(config_file, 'w')
100 cfile.writelines(newlines)
102 print 'updated config file',config_file
104 def validate(changes):
105 defaults = get_defaults()
110 # GENI_INTERFACE_HRN is GENI_REGISTRY_LEVEL1_AUTH, if thats blank it
111 # then defaults to GENI_REGISTRY_ROOT_AUTH
112 # GENI_REGISTRY_LEVEL1_AUTH, so if either of these are present we must
113 # update GENI_INTERFACE_HRN
114 if 'GENI_REGISTRY_ROOT_AUTH' in changes:
115 root_auth = changes['GENI_REGISTRY_ROOT_AUTH']
117 root_auth = defaults['GENI_REGISTRY_ROOT_AUTH']
119 if 'GENI_REGISTRY_LEVEL1_AUTH' in changes:
120 level1_auth = changes['GENI_REGISTRY_LEVEL1_AUTH']
122 level1_auth = defaults['GENI_REGISTRY_LEVEL1_AUTH']
125 interface_hrn = level1_auth
127 interface_hrn = root_auth
128 changes['GENI_INTERFACE_HRN'] = interface_hrn
132 geni_config = Config()
133 plc_vars = {'PLC_API_MAINTENANCE_PASSWORD': 'GENI_PLC_PASSWORD',
134 'PLC_API_MAINTENANCE_USER': 'GENI_PLC_USER'
137 from geni.util.config import plcConfig
138 plc_config = plcConfig
143 for var in dir(geni_config):
144 if var.startswith('GENI'):
145 value = eval("geni_config.%s" % var)
146 defaults[var] = value
148 # some defaults come from plc_config
149 for var in dir(plc_config):
151 value = eval("plc_config.%s" % var)
152 defaults[plc_vars[var]] = value
156 def prompt_variable(variable, default_config):
157 if variable in default_config:
158 default_value = default_config[variable]
163 prompt = "%(variable)s : [%(default_value)s] " % locals()
165 answer = raw_input(prompt).strip()
167 raise Exception ('BailOut')
168 except KeyboardInterrupt:
170 raise Excception ('BailOut')
172 if (answer == "") or (answer == default_value):
174 elif answer in ['""', "''"]:
176 elif (answer == "."):
177 raise Exception ('BailOut')
178 elif (answer == "?"):
179 print variable_usage.strip()
180 elif (answer == "="):
181 print ("%s defaults to %s" %(variable,default_value))
185 def show_variable(variable, value_dict):
186 print "%s=%s" % (variable, value_dict[variable])
188 def mainloop (default_config, config_file):
192 answer = raw_input("Enter command (u for usual changes, w to save, ? for help) ").strip()
195 except KeyboardInterrupt:
199 if (answer == "") or (answer in "?hH"):
205 if (answer in ["q","Q"]):
207 elif (answer == "w"):
208 save_config(changes, config_file)
209 elif (answer == "u"):
211 for varname in usual_variables:
212 changes[varname] = prompt_variable(varname, default_config)
213 except Exception, inst:
214 if (str(inst) != 'BailOut'):
216 elif (answer in ["e","E"]):
218 prompt_variable (cdef,cread,cwrite,category,variable,
220 except Exception, inst:
221 if (str(inst) != 'BailOut'):
223 elif (answer in "sS"):
224 for varname in usual_variables:
225 show_variable (varname, default_config)
226 elif (answer in "lL"):
228 print "No changes to display"
230 for varname in changes:
231 show_variable(varname, changes)
233 print ("Unknown command >%s< -- use h for help" % answer)
236 result.update(default_config)
237 result.update(changes)
240 def setup_server_key(config_dict):
241 hrn = config_dict.get('GENI_INTERFACE_HRN')
244 # Get the path to the authorities directory hierarchy
245 hierarchy = Hierarchy()
246 path = hierarchy.basedir
247 auth_path = hrn.replace(".", os.sep)
249 # define some useful variables
252 hrn_leaf = get_leaf(hrn)
255 new_server_key = os.sep.join([path, auth_path, hrn_leaf]) + ".pkey"
256 old_server_key = os.sep.join([path, key])
257 old_server_cert = os.sep.join([path, cert])
259 # remove old key/cert
260 for fd in [old_server_key, old_server_cert]:
261 if os.path.isfile(fd):
264 # create new server.key
265 distutils.file_util.copy_file(src=new_server_key, dst=old_server_key, verbose=1)
266 print "\t\t%(old_server_key)s\ncopied from\t%(new_server_key)s" % locals()
276 parser = OptionParser(usage=command_usage, version="%prog 1.0")
277 parser.set_defaults(config_dir="/etc/geni",
279 parser.add_option("","--configdir",dest="config_dir",action="append", help="specify configuration directory")
280 parser.add_option("","--usual_variable",dest="usual_variables",action="append", help="add a usual variable")
281 parser.add_option("-d", "--default", action="count", help="dont prompt for values, just use defaults")
282 (config,args) = parser.parse_args()
284 parser.error("too many arguments")
286 config_dir = parser.values.config_dir
287 config_file = os.sep.join([config_dir, 'geni_config'])
288 defaults = get_defaults()
289 # if -d is specified dont prompt, just configure with defaults
291 save_config(defaults, config_file)
294 results = mainloop (defaults, config_file)
295 setup_server_key(results)
298 if __name__ == '__main__':