x509certificate - Add Server Certificate Information to Trust Manager Android Programmatically -

i new ssl , x509certificate concepts. need is, there way certificate information given url

for example: if user has typed https://www.google.com need certificate information programmatically.

edit:

finally, got certificate information server.

now, questions are:

1. how can check certificate trusted or not ?

2. how can add certificate trust manager ?

3. even, if un-trusted certificate, if user wants continue need add certificate trust manager. how can achieve this?

4. that, inorder check certificate trusted or not, need have certificate compare ?

i new these x.509 certificate.

any appreciated.

edit:

this have tried. but, none of them helping me. need certificate trusted or not.

x509trustmanager trustmanager = new x509trustmanager() {                 @override                 public void checkclienttrusted(x509certificate[] chain,                         string authtype) throws certificateexception {                     (trustmanager tm : managers) {                         if (tm instanceof x509trustmanager) {                             ((x509trustmanager) tm).checkclienttrusted(                                     chain, authtype);                         }                     }                 }                  @override                 public void checkservertrusted(x509certificate[] chain,                         string authtype) {                      (x509certificate cert : chain) {                          final string mcertificatinotype = cert.gettype();                         date afterdate = cert.getnotafter();                         date beforedate = cert.getnotbefore();                         date currentdate = new date();                          try {                             cert.checkvalidity(new date());                         } catch (certificateexpiredexception e) {                             loginactivity.isexpired = true;                             e.printstacktrace();                         } catch (certificatenotyetvalidexception e) {                             loginactivity.isinvalid = true;                             e.printstacktrace();                         }                          try {                             cert.verify(trustedroot.getpublickey());                         } catch (invalidkeyexception e) {                             e.printstacktrace();                         } catch (certificateexception e) {                             e.printstacktrace();                         } catch (nosuchalgorithmexception e) {                             e.printstacktrace();                         } catch (nosuchproviderexception e) {                             e.printstacktrace();                         } catch (signatureexception e) {                             e.printstacktrace();                         }                          try {                             if (cert.getissuerx500principal().equals(                                     trustedroot.getissuerx500principal())) {                              }                             cert.verify(trustedhost.getpublickey());                         } catch (invalidkeyexception e) {                             e.printstacktrace();                         } catch (certificateexception e) {                             e.printstacktrace();                         } catch (nosuchalgorithmexception e) {                             e.printstacktrace();                         } catch (nosuchproviderexception e) {                             e.printstacktrace();                         } catch (signatureexception e) {                             e.printstacktrace();                         }                          if (afterdate.compareto(currentdate)                                 * currentdate.compareto(beforedate) > 0) {                         } else {                          }                          if (cert.getissuerx500principal().equals(                                 trustedroot.getissuerx500principal())) {                             return;                         }                     }                      // (x509certificate cert : chain) {                     // url url;                     // string host = "";                     // if (basehoststring.equalsignorecase("")) {                     // final settings settings = mapplication                     // .getsettings();                     // try {                     // url = new url(                     // settings.serveraddress.tostring());                     // host = url.getauthority();                     // } catch (malformedurlexception e) {                     // e.printstacktrace();                     // }                     // } else {                     //                     // }                     //                     // string dn = cert.getsubjectdn().getname();                     // string cn = getvalbyattributetypefromissuerdn(dn,                     // "cn=");                     // if (cn.equalsignorecase(host)) {                     // if (cert.getissuerx500principal().equals(                     // trustedroot.getissuerx500principal())) {                     // return;                     // } else {                     // }                     // } else {                     // }                     // }                     (trustmanager tm : managers) {                         if (tm instanceof x509trustmanager) {                             try {                                 ((x509trustmanager) tm).checkservertrusted(                                         chain, authtype);                             } catch (certificateexception e) {                                 e.printstacktrace();                             }                         }                     }                  }                  @override                 public x509certificate[] getacceptedissuers() {                     arraylist<x509certificate> issuers = new arraylist<>();                     (trustmanager tm : managers) {                         if (tm instanceof x509trustmanager) {                             issuers.addall(arrays                                     .aslist(((x509trustmanager) tm)                                             .getacceptedissuers()));                         }                     }                     return issuers.toarray(new x509certificate[issuers                             .size()]);                 }              }; 

finally, cracked!

                x509trustmanager trustmanager = new x509trustmanager() {                 @override                 public void checkclienttrusted(x509certificate[] chain,                         string authtype) throws certificateexception {                     (trustmanager tm : managers) {                         if (tm instanceof x509trustmanager) {                             ((x509trustmanager) tm).checkclienttrusted(                                     chain, authtype);                         }                     }                 }                  @override                 public void checkservertrusted(                         final x509certificate[] chain, string authtype) {                      (x509certificate cert : chain) {                          final string mcertificatinotype = cert.gettype();                         date afterdate = cert.getnotafter();                         date beforedate = cert.getnotbefore();                         date currentdate = new date();                          try {                             cert.checkvalidity(new date());                         } catch (certificateexpiredexception e) {                             isexpired = true;                             e.printstacktrace();                         } catch (certificatenotyetvalidexception e) {                             isinvalid = true;                             e.printstacktrace();                         }                          if (afterdate.compareto(currentdate)                                 * currentdate.compareto(beforedate) > 0) {                             isexpired = false;                         } else {                             isexpired = true;                         }                          string dn = cert.getsubjectdn().getname();                         string cn = getvalbyattributetypefromissuerdn(dn,                                 "cn=");                          string host = "";                         if (textutils.isempty(query)) {                             if (basehoststring.equalsignorecase("")) {                                 final settings settings = mapplication                                         .getsettings();                                 try {                                     url url = new url(                                             settings.serveraddress                                                     .tostring());                                     host = url.getauthority();                                     if (host.contains(string.valueof(url                                             .getport()))) {                                         string tobereplaced = ":"                                                 + url.getport();                                         host = host.replace(tobereplaced,                                                 "");                                     }                                 } catch (malformedurlexception e) {                                     e.printstacktrace();                                 }                             } else {                                 try {                                     url url = new url(basehoststring);                                     host = url.getauthority();                                     if (host.contains(string.valueof(url                                             .getport()))) {                                         string tobereplaced = ":"                                                 + url.getport();                                         host = host.replace(tobereplaced,                                                 "");                                     }                                 } catch (malformedurlexception e) {                                     e.printstacktrace();                                 }                             }                         } else {                             try {                                 url url = new url(query);                                 host = url.getauthority();                                 if (host.contains(string.valueof(url                                         .getport()))) {                                     string tobereplaced = ":"                                             + url.getport();                                     host = host.replace(tobereplaced, "");                                 }                             } catch (malformedurlexception e) {                                 e.printstacktrace();                             }                         }                          if (cn.equalsignorecase(host)) {                             ishostmismatch = false;                         } else {                             ishostmismatch = true;                         }                          (trustmanager tm : managers) {                             if (tm instanceof x509trustmanager) {                                 try {                                     ((x509trustmanager) tm)                                             .checkservertrusted(chain,                                                     authtype);                                 } catch (certificateexception e) {                                     if (e.getmessage() != null                                             && e.getmessage()                                                     .contains(                                                             "trust anchor certification path not found.")) {                                         isnottrusted = true;                                         mapplication                                                 .setcurrentcertificate(chain);                                     }                                     e.printstacktrace();                                 }                             }                         }                          if (cert.getissuerx500principal().equals(                                 trustedroot.getissuerx500principal())) {                             return;                         }                     }                  }                  @override                 public x509certificate[] getacceptedissuers() {                     arraylist<x509certificate> issuers = new arraylist<>();                     (trustmanager tm : managers) {                         if (tm instanceof x509trustmanager) {                             issuers.addall(arrays                                     .aslist(((x509trustmanager) tm)                                             .getacceptedissuers()));                         }                     }                     return issuers.toarray(new x509certificate[issuers                             .size()]);                 }              }; 

thanks everybody.