c# - Assembly fails to load in restricted AppDomain -


i trying load assembly restricted appdomain. if not specify restrictions, assembly load correctly:

var permissionset = new permissionset(system.security.permissions.permissionstate.unrestricted); appdomain targetappdomain = appdomain.createdomain("lockeddomain" + guid.newguid().tostring("n"),null,domainsetup,permissionset,null); var instance = (iremotefilterclass) targetappdomain.createinstancefromandunwrap(tempassemblypath, "compiledcode.compiledclass");

howevere want lock down created appdomain possible, i.e. give permissions absolutely necessary. if specify permissionset restrict permissions, assembly fails load:

var permissionset = new permissionset(system.security.permissions.permissionstate.none); permissionset.addpermission(new fileiopermission(fileiopermissionaccess.read, tempassemblypath)); permissionset.addpermission(new fileiopermission(fileiopermissionaccess.pathdiscovery, tempassemblypath)); permissionset.addpermission(new fileiopermission(fileiopermissionaccess.read, assembly.getexecutingassembly().location)); permissionset.addpermission(new fileiopermission(fileiopermissionaccess.pathdiscovery, assembly.getexecutingassembly().location)); permissionset.addpermission(new reflectionpermission(permissionstate.unrestricted)); //not sure if necessary, not work anyway  appdomain targetappdomain = appdomain.createdomain("lockeddomain" + guid.newguid().tostring("n"),null,domainsetup,permissionset,null); var instance = (iremotefilterclass) targetappdomain.createinstancefromandunwrap(tempassemblypath, "compiledcode.compiledclass");

the following exception thrown:

system.io.fileloadexception: not load file or assembly '5e1a72b7c5584f7c92c18ea9b221222f, version=0.0.0.0, culture=neutral, publickeytoken=null' or 1 of dependencies. failed grant permission execute. (exception hresult: 0x80131418) ---> system.security.policy.policyexception: execution permission cannot acquired.  @ system.security.codeaccesssecurityengine.resolvegrantset(evidence evidence, int32& specialflags, boolean checkexecutionpermission)  --- end of inner exception stack trace ---     @ system.reflection.runtimeassembly._nload(assemblyname filename, string codebase, evidence assemblysecurity, runtimeassembly locationhint, stackcrawlmark& stackmark, intptr pprivhostbinder, boolean throwonfilenotfound, boolean forintrospection, boolean suppresssecuritychecks)    @ system.reflection.runtimeassembly.nload(assemblyname filename, string codebase, evidence assemblysecurity, runtimeassembly locationhint, stackcrawlmark& stackmark, intptr pprivhostbinder, boolean throwonfilenotfound, boolean forintrospection, boolean suppresssecuritychecks)    @ system.reflection.runtimeassembly.internalloadassemblyname(assemblyname assemblyref, evidence assemblysecurity, runtimeassembly reqassembly, stackcrawlmark& stackmark, intptr pprivhostbinder, boolean throwonfilenotfound, boolean forintrospection, boolean suppresssecuritychecks)    @ system.reflection.runtimeassembly.internalloadfrom(string assemblyfile, evidence securityevidence, byte[] hashvalue, assemblyhashalgorithm hashalgorithm, boolean forintrospection, boolean suppresssecuritychecks, stackcrawlmark& stackmark)    @ system.reflection.assembly.loadfrom(string assemblyfile, evidence securityevidence)    @ system.activator.createinstancefrominternal(string assemblyfile, string typename, boolean ignorecase, bindingflags bindingattr, binder binder, object[] args, cultureinfo culture, object[] activationattributes, evidence securityinfo)    @ system.appdomain.createinstancefrom(string assemblyfile, string typename)    @ system.appdomain.createinstancefromandunwrap(string assemblyname, string typename)    @ system.appdomain.createinstancefromandunwrap(string assemblyname, string typename)

it seems if there still permissions missing, have no idea ones missing.

it necessary add securitypermission securitypermissionflag.execution set.

here working code:

var permissionset = new permissionset(system.security.permissions.permissionstate.none); permissionset.addpermission(new fileiopermission(fileiopermissionaccess.read, tempassemblypath)); permissionset.addpermission(new fileiopermission(fileiopermissionaccess.pathdiscovery, tempassemblypath)); //the following line fixed code permissionset.addpermission(new securitypermission(securitypermissionflag.execution));   appdomain targetappdomain = appdomain.createdomain("lockeddomain" + guid.newguid().tostring("n"),null,domainsetup,permissionset,null); var instance = (iremotefilterclass) targetappdomain.createinstancefromandunwrap(tempassemblypath, "compiledcode.compiledclass");

(source: https://social.msdn.microsoft.com/forums/vstudio/en-us/23a9197e-3581-4a28-912d-968004488773/how-to-change-permissions-of-appdomain?forum=clr)


-

Comments

Post a Comment

Popular posts from this blog

PySide and Qt Properties: Connecting signals from Python to QML -

i trying run simple pyside appliccation design made in qml. call function in qml python in separated thread. i have following qml view: import qt 4.7 rectangle { visible: true width: 100; height: 100 color: "lightgrey" text { id: datestr objectname: "datestr" x: 10 y: 10 text: "init text" font.pixelsize: 12 function updatedata(text) { datestr.text = qstr(text) console.log("you said: " + text) } } } here application: some imports.... #!/usr/bin/python import sys import time pyside import qtdeclarative, qtcore pyside.qtgui import qapplication pyside.qtdeclarative import qdeclarativeview the qthread worker.... #worker thread class worker(qtcore.qthread): updateprogress = qtcore.signal(int) def __init__(self, child): qtcore.qthread.__init__(self) self.child = child def run(self):
Read more

c# - DevExpress.Wpf.Grid.InfiniteGridSizeException was unhandled -

Image
when using devexpress, see error: devexpress.wpf.grid.infinitegridsizeexception unhandled message="by default, infinite grid height not allowed since grid rows rendered , hence grid work slowly. fix issue, should place grid container give finite height grid, or should manually specify grid's height or maxheight. note can avoid exception setting gridcontrol.allowinfinitegridsize static property true, in case grid run slowly." the problem dxgrid has infinite height. to fix, set height non-infinite. snoop absolutely invaluable this: if "height" xaml element infinite (i.e. 0 or nan ), can set using one of following: option 1: height="{binding path=actualheight, relativesource={relativesource mode=findancestor, ancestortype=uielement}}" option 2: verticalalignment="stretch" option 3: height="auto" hint: use verticalalignment="stretch" if child of grid <rowdefinition height=
Read more

scala - 'wrong top statement declaration' when using slick in IntelliJ -

Image
i'm porting project scala 2.9 2.10, therefore have use slick instead of scalaquery. i'm using slick 2.1.0 since supports ms access. according this tutorial , upgrade guide changed robs object class , added val robs : why error message wrong top statement declaration , how rid of it? edit: i'm new scala... according this question seems can't put val outside of methods or classes, right? code above directly in packge. right approach slick then? should move code in class or trait? according this changed val robs = tablequery[robs] to object robs extends tablequery(new robs(_)) {} . no warnings or errors anymore. :)
Read more