Restore SSL X509TrustManager in Java -


i have following code conditionally (based on boolean) disables ssl certificate checking.

however, if set boolean false , re-run code, ssl checking still seems disabled (when should re-enabled).

so, what's opposite logic of this, checking restored?

if (bignoressl) {   trustmanager[] trustallcertificates = new trustmanager[] {     new x509trustmanager()     {       @override       public x509certificate[] getacceptedissuers() { return null; // not relevant.}        @override       public void checkclienttrusted(x509certificate[] certs, string authtype) { // nothing. allow them all. }        @override       public void checkservertrusted(x509certificate[] certs, string authtype){ // nothing. allow them all.}     }   };     hostnameverifier trustallhostnames = new hostnameverifier()    {         @override         public boolean verify(string hostname, sslsession session) { return true; // allow them all. }    };          try         {             system.setproperty("jsse.enablesniextension", "false");             sslcontext sc = sslcontext.getinstance("ssl");             sc.init(null, trustallcertificates, new securerandom());             httpsurlconnection.setdefaultsslsocketfactory(sc.getsocketfactory());             httpsurlconnection.setdefaulthostnameverifier(trustallhostnames);         }         catch (generalsecurityexception e)         {             throw new exceptionininitializererror(e);         } } else {   // code restore here (opposite of above?) }

one alternative first save defaults in variable, can restore them later:

// save defaults (do before setting defaults) hostnameverifier defaultverifier = httpsurlconnection.getdefaulthostnameverifier(); sslsocketfactory defaultfactory = httpsurlconnection.getdefaultsslsocketfactory();  if (bignoressl) { ... } else {     // restore defaults     httpsurlconnection.setdefaulthostnameverifier(defaultverifier);     httpsurlconnection.setdefaultsslsocketfactory(defaultfactory); }

another alternative (a better one, imo) not set default connections, set each individual connection instead:

httpsurlconnection conn = // create connection  if (bignoressl) {     // set custom verifier , factory connection     conn.sethostnameverifier(trustallhostnames);     conn.setsslsocketfactory(sc.getsocketfactory()); } // no need restore (else), didn't change defaults

this changes verifier , factory specified connection, without affecting defaults (so there's no need restore).


Comments

Post a Comment

Popular posts from this blog

Is there a better way to structure post methods in Class Based Views -

i'm using class based views in django , never specify url in ajax calls , omit action parameter in form because know these requests go through post method of class based view. notice view - profile page make many requests depending on user updating on page - post method become convoluted , if/else mess example: def post(self, request, *args, **kwargs): # handle user changing available date if request.post.get('availabledate') != none: self.updateavailabledate(request) return jsonresponse({'result':'success'}) if request.post.get('newprojectname') != none: creative_user = creativeuserprofile.objects.get(id = request.user.id) project = project.create_project(creative_user, request.post['newprojectname']) project.save() return jsonresponse({'projectid': project.id }) if request.post.get('projectimage') != none , request.files['file']: proj
Read more

performance - Why is XCHG reg, reg a 3 micro-op instruction on modern Intel architectures? -

i'm doing micro-optimization on performance critical part of code , came across sequence of instructions (in at&t syntax): add %rax, %rbx mov %rdx, %rax mov %rbx, %rdx i thought had use case xchg allow me shave instruction , write: add %rbx, %rax xchg %rax, %rdx however, dimay found agner fog's instruction tables , xchg 3 micro-op instruction 2 cycle latency on sandy bridge, ivy bridge, broadwell, haswell , skylake. 3 whole micro-ops , 2 cycles of latency! 3 micro-ops throws off 4-1-1-1 cadence , 2 cycle latency makes worse original in best case since last 2 instructions in original might execute in parallel. now... cpu might breaking instruction micro-ops equivalent to: mov %rax, %tmp mov %rdx, %rax mov %tmp, %rdx where tmp anonymous internal register , suppose last 2 micro-ops run in parallel latency 2 cycles. given register renaming occurs on these micro-architectures, though, doesn't make sense me done way. why wouldn't register renamer
Read more

jquery - Responsive Navbar with Sub Navbar -

good day, forgive me nav vocabulary not best. if question confusing apologize. i'm working on navigation bar needs centered on page @ 768px , above. items in nav open (or perhaps toggle) subnav lives directly below. these nav should appear centered on page. i have been able work through responsive portion of nav bar, having main items align vertically , sub nav menu of each item roll out below, , gave them indent separation. working well. however, issue not responsive side, behavior @ width greater 768px. happens toggling menu's sub navigation pushes other main items down page below sub nav. here's code: $(document).ready(function () { //stick in fixed 100% height behind navbar don't wrap $('#slide-nav.navbar-inverse').after($('<div class="inverse" id="navbar-height-col"></div>')); $('#slide-nav.navbar-default').after($('<div id="navbar-height-col"></d
Read more