Active Directory Authentication via LDAP with [e-mail] using Delphi

Question

As you can see from the code snippet below. I am currently collecting AD information from the current user using adshlp and ActiveDs_TLB. I have a form that allows the user to enter their AD password, and I verify that this is correct before allowing access to the system. It's good. Now the problem is that users want to be able to enter any AD and ID in the form mydomain.com \ userid and authenticate the code and return the same data that the code is currently retrieving. I could not find an LDAP call that would do this. I would appreciate any help and suggestions I may receive. thank

uses
adshlp, ActiveDs_TLB


function Tlogon_form.GetUser(Domain, UserName, pword: string; var ADSIUser: TADSIUserInfo): boolean;
var
  usr   :    IAdsUser;
  usr1  :    IADs;
  flags :    integer;
  grps  :    IAdsMembers;
  grp   :    IAdsGroup;
  varGroup : OleVariant;
  Temp :     LongWord;
  pwd, cn_name, FQDN, AD_path: string;
  HR : boolean;
  fad_domain:string;
  objsysinfo: IADsADSystemInfo;
  domainDN: string;
  List: array [0..10] of String;
  I: integer;
  name_nodes :string;

const
  ADS_SECURE_AUTHENTICATION = $00000001;
begin
  ADSIUser.UID:='';
  ADSIUser.UserName:='';
  ADSIUser.DB_login :='';
  ADSIUser.Disabled:=true;
  ADSIUser.LockedOut:=true;
  ADSIUser.Groups:='';
  Result:=false;
  FQDN :='';
  AD_path := '';
  SBN_SQL.Common_login :='';

  FPassword := pword;
  FUserName := UserName;
  //FDomain := lowercase(Domain); // + '.local';

  if FUserName = '' then exit;

  objsysinfo := CoADSystemInfo.Create;
  domainDN := objsysinfo.GetAnyDCName;
  fad_domain := objsysinfo.DomainDNSName;
  name_nodes := objsysinfo.UserName;

  if domain > '' then
  begin
    fad_domain := domain;
  end
  else
  begin
    domain := fad_domain;
  end;

  fad_domain := fad_domain + '.';

  FQDN := domainDN;
  ad_path := name_nodes;

    try
     if trim(FUserName)<>'' then
     begin
        ADsOpenObject('LDAP://' + AD_path, FUserName, FPassword,ADS_SECURE_AUTHENTICATION, IADsUser, usr);
     end;

     if usr=nil then exit;

     ADSIUser.UID:= UserName;

     ADSIUser.UserName := usr.FullName;
     ADSIUser.DB_login := usr.employeeid;
     //usr:=nil;
     Result:=true;
     exit;
  except
     on e: exception do begin
        Result:=false;
        exit;
     end;
  end;


end;

Run codeHide result

Answer 1

- userid ( ) , , .

"The Delphi Magazine" 2000 ADSI Delphi - Delphi TADSISearcher - - , !

Answer 2

ADsOpenObject LDAP, , ADsOpenObject , ,

function Authenticate(const pUser, pPassword,pDomain: String): HRESULT;  
Var  
 aUser : IAdsUser;  
begin  
 Try  
   Result  := ADsOpenObject(Format('LDAP://%s',[pDomain]),Format('%s\%s',[pDomain,pUser]),pPassword,ADS_SECURE_AUTHENTICATION,IAdsUser,aUser);    
  // here retrieve the information needed   
 Finally  
   aUser := Nil  
 End  
end;