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# -*- coding: utf-8 -*-
"""
High level operations on subusers.
"""
#external imports
import sys
import os
import shutil
#internal imports
import subuserlib.resolve
import subuserlib.classes.subuser
import subuserlib.verify
import subuserlib.update
import subuserlib.classes.exceptions as exceptions
def add(user,subuserName,imageSourceIdentifier,permissionsAccepter,prompt=False,forceInternal=False,homeDir=None):
if subuserName.startswith("!") and not forceInternal:
sys.exit("A subusers may not have names beginning with ! as these names are reserved for internal use.")
if subuserName in user.registry.subusers:
sys.exit("A subuser named "+subuserName+" already exists.")
user.registry.logChange("Adding subuser "+subuserName+" with image "+imageSourceIdentifier)
try:
imageSource = subuserlib.resolve.resolveImageSource(user,imageSourceIdentifier)
except (KeyError,subuserlib.resolve.ResolutionError) as keyError:
sys.exit("Could not add subuser. The image source "+imageSourceIdentifier+" does not exist.\n"+str(keyError))
addFromImageSource(user,subuserName,imageSource,permissionsAccepter,prompt,homeDir=homeDir)
def addFromImageSource(user,subuserName,imageSource,permissionsAccepter,prompt=False,homeDir=None):
addFromImageSourceNoVerify(user,subuserName,imageSource,homeDir=homeDir)
subuser = user.registry.subusers[subuserName]
subuserlib.verify.verify(user,subusers=[subuser],permissionsAccepter=permissionsAccepter,prompt=prompt)
user.registry.commit()
def addFromImageSourceNoVerify(user,subuserName,imageSource,homeDir=None):
subuser = subuserlib.classes.subuser.Subuser(user,subuserName,None,False,False,[],imageSource=imageSource,nonDefaultHomeDir=homeDir)
user.registry.subusers[subuserName] = subuser
def remove(user,subusers):
didSomething = False
for subuser in subusers:
user.registry.logChange("Removing subuser "+str(subuser.name))
try:
subuserHome = subuser.homeDirOnHost
if subuserHome and os.path.exists(subuserHome):
user.registry.logChange(" If you wish to remove the subusers home directory, issule the command $ rm -r "+subuserHome)
except:
pass
user.registry.logChange(" If you wish to remove the subusers image, issue the command $ subuser remove-old-images")
for serviceSubuserName in subuser.serviceSubuserNames:
try:
serviceSubuser = user.registry.subusers[serviceSubuserName]
serviceSubuser.removePermissions()
del user.registry.subusers[serviceSubuserName]
except KeyError:
pass
# Remove service locks
try:
shutil.rmtree(os.path.join(user.config["lock-dir"],"services",subuser.name))
except OSError:
pass
# Remove permission files
subuser.removePermissions()
del user.registry.subusers[subuser.name]
didSomething = True
if didSomething:
subuserlib.verify.verify(user)
user.registry.commit()
def changeImage(user,subuserName,imageSourceIdentifier,permissionsAccepter,prompt=False):
if not subuserName in user.registry.subusers:
sys.exit("Subuser "+subuserName+" does not exist.")
user.registry.logChange("Changing the image for subuser "+subuserName+" to "+imageSourceIdentifier)
try:
imageSource = subuserlib.resolve.resolveImageSource(user,imageSourceIdentifier)
except (KeyError,subuserlib.resolve.ResolutionError) as keyError:
sys.exit("Could not change image. The image source "+imageSourceIdentifier+" does not exist.\n"+str(keyError))
subuser = user.registry.subusers[subuserName]
subuser.imageSource = imageSource
subuserlib.verify.verify(user,subusers=[subuser],permissionsAccepter=permissionsAccepter,prompt=prompt)
user.registry.commit()
def setExecutableShortcutInstalled(user,subusers,installed):
for subuser in subusers:
if installed:
user.registry.logChange("Adding launcher for subuser "+subuser.name+" to $PATH.")
else:
user.registry.logChange("Removing launcher for subuser "+subuser.name+" from $PATH.")
subuser.executableShortcutInstalled = installed
subuserlib.verify.verify(user)
user.registry.commit()
def setEntrypointsExposed(user,subusers,exposed,permissionsAccepter):
for subuser in subusers:
if exposed:
user.registry.logChange("Exposing entrypoints for subuser "+subuser.name+" in the $PATH.")
else:
user.registry.logChange("Removing entrypoints for subuser "+subuser.name+" from $PATH.")
subuser.entrypointsExposed = exposed
subuserlib.verify.verify(user,subusers=subusers,permissionsAccepter=permissionsAccepter)
user.registry.commit()
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