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HTTPClient
Class AuthorizationInfo  view AuthorizationInfo download AuthorizationInfo.java

java.lang.Object
  extended byHTTPClient.AuthorizationInfo
All Implemented Interfaces:
java.lang.Cloneable, GlobalConstants

public class AuthorizationInfo
extends java.lang.Object
implements GlobalConstants, java.lang.Cloneable

Holds the information for an authorization response.

There are 7 fields which make up this class: host, port, scheme, realm, cookie, params, and extra_info. The host and port select which server the info will be sent to. The realm is server specified string which groups various URLs under a given server together and which is used to select the correct info when a server issues an auth challenge; for schemes which don't use a realm (such as "NTLM", "PEM", and "Kerberos") the realm must be the empty string (""). The scheme is the authorization scheme used (such as "Basic" or "Digest").

There are basically two formats used for the Authorization header, the one used by the "Basic" scheme and derivatives, and the one used by the "Digest" scheme and derivatives. The first form contains just the the scheme and a "cookie":

    Authorization: Basic aGVsbG86d29ybGQ=
The second form contains the scheme followed by a number of parameters in the form of name=value pairs:
    Authorization: Digest username="hello", realm="test", nonce="42", ...
The two fields "cookie" and "params" correspond to these two forms. toString() is used by the AuthorizationModule when generating the Authorization header and will format the info accordingly. Note that "cookie" and "params" are mutually exclusive: if the cookie field is non-null then toString() will generate the first form; otherwise it will generate the second form.

In some schemes "extra" information needs to be kept which doesn't appear directly in the Authorization header. An example of this are the A1 and A2 strings in the Digest scheme. Since all elements in the params field will appear in the Authorization header this field can't be used for storing such info. This is what the extra_info field is for. It is an arbitrary object which can be manipulated by the corresponding setExtraInfo() and getExtraInfo() methods, but which will not be printed by toString().

The addXXXAuthorization(), removeXXXAuthorization(), and getAuthorization() methods manipulate and query an internal list of AuthorizationInfo instances. There can be only one instance per host, port, scheme, and realm combination (see equals()).

Since:
V0.1
Version:
0.3-2 18/06/1999

Field Summary
private  NVPair[] auth_params
          any parameters
private static AuthorizationHandler AuthHandler
          A pointer to the handler to be called when we need authorization info
static int CD_0
           
static int CD_CHUNKED
           
static int CD_CLOSE
           
static int CD_CONTLEN
           
static int CD_HDRS
           
static int CD_MP_BR
           
static int CD_NONE
          Content delimiters
private static java.util.Hashtable CntxtList
          Holds the list of lists of authorization info structures
private  java.lang.String cookie
          the string used for the "Basic", "NTLM", and other authorization schemes which don't use parameters
static boolean DebugAll
          Debug variables
static boolean DebugAuth
           
static boolean DebugConn
           
static boolean DebugDemux
           
static boolean DebugMods
           
static boolean DebugResp
           
static boolean DebugSocks
           
static boolean DebugURLC
           
private  java.lang.Object extra_info
          additional info which won't be displayed in the toString()
private  java.lang.String host
          the host (lowercase)
static int HTTP
          possible http protocols we (might) handle
static int HTTP_1_0
          some known http versions
static int HTTP_1_1
           
static int HTTP_NG
           
static int HTTPS
           
private  java.lang.String[] paths
          a list of paths where this realm has been known to be required
private  int port
          the port
private  java.lang.String realm
          the realm
private  java.lang.String scheme
          the scheme.
static int SHTTP
           
 
Constructor Summary
(package private) AuthorizationInfo(AuthorizationInfo templ)
          Creates a new copy of the given AuthorizationInfo.
(package private) AuthorizationInfo(java.lang.String host, int port)
          Creates an new info structure for the specified host and port.
  AuthorizationInfo(java.lang.String host, int port, java.lang.String scheme, java.lang.String realm, NVPair[] params, java.lang.Object info)
          Creates a new info structure for the specified host and port with the specified scheme, realm, params.
  AuthorizationInfo(java.lang.String host, int port, java.lang.String scheme, java.lang.String realm, java.lang.String cookie)
          Creates a new info structure for the specified host and port with the specified scheme, realm and cookie.
 
Method Summary
static void addAuthorization(AuthorizationInfo auth_info)
          Adds an authorization entry to the list using the default context.
static void addAuthorization(AuthorizationInfo auth_info, java.lang.Object context)
          Adds an authorization entry to the list.
static void addAuthorization(java.lang.String host, int port, java.lang.String scheme, java.lang.String realm, java.lang.String cookie, NVPair[] params, java.lang.Object info)
          Adds an authorization entry to the list using the default context.
static void addAuthorization(java.lang.String host, int port, java.lang.String scheme, java.lang.String realm, java.lang.String cookie, NVPair[] params, java.lang.Object info, java.lang.Object context)
          Adds an authorization entry to the list.
static void addBasicAuthorization(java.lang.String host, int port, java.lang.String realm, java.lang.String user, java.lang.String passwd)
          Adds an authorization entry for the "Basic" authorization scheme to the list using the default context.
static void addBasicAuthorization(java.lang.String host, int port, java.lang.String realm, java.lang.String user, java.lang.String passwd, java.lang.Object context)
          Adds an authorization entry for the "Basic" authorization scheme to the list.
static void addDigestAuthorization(java.lang.String host, int port, java.lang.String realm, java.lang.String user, java.lang.String passwd)
          Adds an authorization entry for the "Digest" authorization scheme to the list using the default context.
static void addDigestAuthorization(java.lang.String host, int port, java.lang.String realm, java.lang.String user, java.lang.String passwd, java.lang.Object context)
          Adds an authorization entry for the "Digest" authorization scheme to the list.
 void addPath(java.lang.String resource)
          Adds the path from the given resource to our path list.
 java.lang.Object clone()
          This method may be called to create a new copy of the Object.
 boolean equals(java.lang.Object obj)
          Two AuthorizationInfos are considered equal if their host, port, scheme and realm match.
(package private) static AuthorizationInfo findBest(RoRequest req)
          Tries to find the candidate in the current list of auth info for the given request.
static AuthorizationHandler getAuthHandler()
          Get's the current authorization handler.
(package private) static AuthorizationInfo getAuthorization(AuthorizationInfo auth_info, RoRequest req, RoResponse resp, boolean query_auth_h)
          Searches for the authorization info using the host, port, scheme and realm from the given info struct.
static AuthorizationInfo getAuthorization(java.lang.String host, int port, java.lang.String scheme, java.lang.String realm)
          Searches for the authorization info using the given host, port, scheme and realm.
(package private) static AuthorizationInfo getAuthorization(java.lang.String host, int port, java.lang.String scheme, java.lang.String realm, boolean query_auth_h)
          Searches for the authorization info given a host, port, scheme and realm.
static AuthorizationInfo getAuthorization(java.lang.String host, int port, java.lang.String scheme, java.lang.String realm, java.lang.Object context)
          Searches for the authorization info in the given context using the given host, port, scheme and realm.
 java.lang.String getCookie()
          Get the cookie
 java.lang.Object getExtraInfo()
          Get the extra info.
 java.lang.String getHost()
          Get the host.
 NVPair[] getParams()
          Get the authentication parameters.
 int getPort()
          Get the port.
 java.lang.String getRealm()
          Get the realm.
 java.lang.String getScheme()
          Get the scheme.
 int hashCode()
          Produces a hash code based on host, scheme and realm.
(package private) static AuthorizationInfo[] parseAuthString(java.lang.String challenge, RoRequest req, RoResponse resp)
          Parses the authentication challenge(s) into an array of new info structures for the specified host and port.
(package private) static AuthorizationInfo queryAuthHandler(AuthorizationInfo auth_info, RoRequest req, RoResponse resp)
          Queries the AuthHandler for authorization info.
static void removeAuthorization(AuthorizationInfo auth_info)
          Removes an authorization entry from the list using the default context.
static void removeAuthorization(AuthorizationInfo auth_info, java.lang.Object context)
          Removes an authorization entry from the list.
static void removeAuthorization(java.lang.String host, int port, java.lang.String scheme, java.lang.String realm)
          Removes an authorization entry from the list using the default context.
static void removeAuthorization(java.lang.String host, int port, java.lang.String scheme, java.lang.String realm, java.lang.Object context)
          Removes an authorization entry from the list.
static AuthorizationHandler setAuthHandler(AuthorizationHandler handler)
          Set's the authorization handler.
 void setCookie(java.lang.String cookie)
          Set the cookie
 void setExtraInfo(java.lang.Object info)
          Set the extra info.
 void setParams(NVPair[] params)
          Set the authentication parameters.
 java.lang.String toString()
          Constructs a string containing the authorization info.
 
Methods inherited from class java.lang.Object
finalize, getClass, notify, notifyAll, wait, wait, wait
 

Field Detail

CntxtList

private static java.util.Hashtable CntxtList
Holds the list of lists of authorization info structures


AuthHandler

private static AuthorizationHandler AuthHandler
A pointer to the handler to be called when we need authorization info


host

private java.lang.String host
the host (lowercase)


port

private int port
the port


scheme

private java.lang.String scheme
the scheme. (e.g. "Basic") Note: don't lowercase because some buggy servers use a case-sensitive match


realm

private java.lang.String realm
the realm


cookie

private java.lang.String cookie
the string used for the "Basic", "NTLM", and other authorization schemes which don't use parameters


auth_params

private NVPair[] auth_params
any parameters


extra_info

private java.lang.Object extra_info
additional info which won't be displayed in the toString()


paths

private java.lang.String[] paths
a list of paths where this realm has been known to be required


DebugAll

public static final boolean DebugAll
Debug variables

See Also:
Constant Field Values

DebugConn

public static final boolean DebugConn
See Also:
Constant Field Values

DebugResp

public static final boolean DebugResp
See Also:
Constant Field Values

DebugDemux

public static final boolean DebugDemux
See Also:
Constant Field Values

DebugAuth

public static final boolean DebugAuth
See Also:
Constant Field Values

DebugSocks

public static final boolean DebugSocks
See Also:
Constant Field Values

DebugMods

public static final boolean DebugMods
See Also:
Constant Field Values

DebugURLC

public static final boolean DebugURLC
See Also:
Constant Field Values

HTTP

public static final int HTTP
possible http protocols we (might) handle

See Also:
Constant Field Values

HTTPS

public static final int HTTPS
See Also:
Constant Field Values

SHTTP

public static final int SHTTP
See Also:
Constant Field Values

HTTP_NG

public static final int HTTP_NG
See Also:
Constant Field Values

HTTP_1_0

public static final int HTTP_1_0
some known http versions

See Also:
Constant Field Values

HTTP_1_1

public static final int HTTP_1_1
See Also:
Constant Field Values

CD_NONE

public static final int CD_NONE
Content delimiters

See Also:
Constant Field Values

CD_HDRS

public static final int CD_HDRS
See Also:
Constant Field Values

CD_0

public static final int CD_0
See Also:
Constant Field Values

CD_CLOSE

public static final int CD_CLOSE
See Also:
Constant Field Values

CD_CONTLEN

public static final int CD_CONTLEN
See Also:
Constant Field Values

CD_CHUNKED

public static final int CD_CHUNKED
See Also:
Constant Field Values

CD_MP_BR

public static final int CD_MP_BR
See Also:
Constant Field Values
Constructor Detail

AuthorizationInfo

AuthorizationInfo(java.lang.String host,
                  int port)
Creates an new info structure for the specified host and port.


AuthorizationInfo

public AuthorizationInfo(java.lang.String host,
                         int port,
                         java.lang.String scheme,
                         java.lang.String realm,
                         NVPair[] params,
                         java.lang.Object info)
Creates a new info structure for the specified host and port with the specified scheme, realm, params. The cookie is set to null.


AuthorizationInfo

public AuthorizationInfo(java.lang.String host,
                         int port,
                         java.lang.String scheme,
                         java.lang.String realm,
                         java.lang.String cookie)
Creates a new info structure for the specified host and port with the specified scheme, realm and cookie. The params is set to a zero-length array, and the extra_info is set to null.


AuthorizationInfo

AuthorizationInfo(AuthorizationInfo templ)
Creates a new copy of the given AuthorizationInfo.

Method Detail

setAuthHandler

public static AuthorizationHandler setAuthHandler(AuthorizationHandler handler)
Set's the authorization handler. This handler is called whenever the server requests authorization and no entry for the requested scheme and realm can be found in the list. The handler must implement the AuthorizationHandler interface.
If no handler is set then a default handler is used. This handler currently only handles the "Basic" scheme and brings up a popup which prompts for the username and password.
The default handler can be disabled by setting the auth handler to null.


getAuthHandler

public static AuthorizationHandler getAuthHandler()
Get's the current authorization handler.


getAuthorization

public static AuthorizationInfo getAuthorization(java.lang.String host,
                                                 int port,
                                                 java.lang.String scheme,
                                                 java.lang.String realm)
Searches for the authorization info using the given host, port, scheme and realm. The context is the default context.


getAuthorization

public static AuthorizationInfo getAuthorization(java.lang.String host,
                                                 int port,
                                                 java.lang.String scheme,
                                                 java.lang.String realm,
                                                 java.lang.Object context)
Searches for the authorization info in the given context using the given host, port, scheme and realm.


queryAuthHandler

static AuthorizationInfo queryAuthHandler(AuthorizationInfo auth_info,
                                          RoRequest req,
                                          RoResponse resp)
                                   throws AuthSchemeNotImplException
Queries the AuthHandler for authorization info. It also adds this info to the list.


getAuthorization

static AuthorizationInfo getAuthorization(AuthorizationInfo auth_info,
                                          RoRequest req,
                                          RoResponse resp,
                                          boolean query_auth_h)
                                   throws AuthSchemeNotImplException
Searches for the authorization info using the host, port, scheme and realm from the given info struct. If not found it queries the AuthHandler (if set).


getAuthorization

static AuthorizationInfo getAuthorization(java.lang.String host,
                                          int port,
                                          java.lang.String scheme,
                                          java.lang.String realm,
                                          boolean query_auth_h)
                                   throws AuthSchemeNotImplException
Searches for the authorization info given a host, port, scheme and realm. Queries the AuthHandler if not found in list.


addAuthorization

public static void addAuthorization(AuthorizationInfo auth_info)
Adds an authorization entry to the list using the default context. If an entry for the specified scheme and realm already exists then its cookie and params are replaced with the new data.


addAuthorization

public static void addAuthorization(AuthorizationInfo auth_info,
                                    java.lang.Object context)
Adds an authorization entry to the list. If an entry for the specified scheme and realm already exists then its cookie and params are replaced with the new data.


addAuthorization

public static void addAuthorization(java.lang.String host,
                                    int port,
                                    java.lang.String scheme,
                                    java.lang.String realm,
                                    java.lang.String cookie,
                                    NVPair[] params,
                                    java.lang.Object info)
Adds an authorization entry to the list using the default context. If an entry for the specified scheme and realm already exists then its cookie and params are replaced with the new data.


addAuthorization

public static void addAuthorization(java.lang.String host,
                                    int port,
                                    java.lang.String scheme,
                                    java.lang.String realm,
                                    java.lang.String cookie,
                                    NVPair[] params,
                                    java.lang.Object info,
                                    java.lang.Object context)
Adds an authorization entry to the list. If an entry for the specified scheme and realm already exists then its cookie and params are replaced with the new data.


addBasicAuthorization

public static void addBasicAuthorization(java.lang.String host,
                                         int port,
                                         java.lang.String realm,
                                         java.lang.String user,
                                         java.lang.String passwd)
Adds an authorization entry for the "Basic" authorization scheme to the list using the default context. If an entry already exists for the "Basic" scheme and the specified realm then it is overwritten.


addBasicAuthorization

public static void addBasicAuthorization(java.lang.String host,
                                         int port,
                                         java.lang.String realm,
                                         java.lang.String user,
                                         java.lang.String passwd,
                                         java.lang.Object context)
Adds an authorization entry for the "Basic" authorization scheme to the list. If an entry already exists for the "Basic" scheme and the specified realm then it is overwritten.


addDigestAuthorization

public static void addDigestAuthorization(java.lang.String host,
                                          int port,
                                          java.lang.String realm,
                                          java.lang.String user,
                                          java.lang.String passwd)
Adds an authorization entry for the "Digest" authorization scheme to the list using the default context. If an entry already exists for the "Digest" scheme and the specified realm then it is overwritten.


addDigestAuthorization

public static void addDigestAuthorization(java.lang.String host,
                                          int port,
                                          java.lang.String realm,
                                          java.lang.String user,
                                          java.lang.String passwd,
                                          java.lang.Object context)
Adds an authorization entry for the "Digest" authorization scheme to the list. If an entry already exists for the "Digest" scheme and the specified realm then it is overwritten.


removeAuthorization

public static void removeAuthorization(AuthorizationInfo auth_info)
Removes an authorization entry from the list using the default context. If no entry for the specified host, port, scheme and realm exists then this does nothing.


removeAuthorization

public static void removeAuthorization(AuthorizationInfo auth_info,
                                       java.lang.Object context)
Removes an authorization entry from the list. If no entry for the specified host, port, scheme and realm exists then this does nothing.


removeAuthorization

public static void removeAuthorization(java.lang.String host,
                                       int port,
                                       java.lang.String scheme,
                                       java.lang.String realm)
Removes an authorization entry from the list using the default context. If no entry for the specified host, port, scheme and realm exists then this does nothing.


removeAuthorization

public static void removeAuthorization(java.lang.String host,
                                       int port,
                                       java.lang.String scheme,
                                       java.lang.String realm,
                                       java.lang.Object context)
Removes an authorization entry from the list. If no entry for the specified host, port, scheme and realm exists then this does nothing.


findBest

static AuthorizationInfo findBest(RoRequest req)
Tries to find the candidate in the current list of auth info for the given request. The paths associated with each auth info are examined, and the one with either the nearest direct parent or child is chosen. This is used for preemptively sending auth info.


addPath

public void addPath(java.lang.String resource)
Adds the path from the given resource to our path list. The path list is used for deciding when to preemptively send auth info.


parseAuthString

static AuthorizationInfo[] parseAuthString(java.lang.String challenge,
                                           RoRequest req,
                                           RoResponse resp)
                                    throws java.net.ProtocolException
Parses the authentication challenge(s) into an array of new info structures for the specified host and port.


getHost

public final java.lang.String getHost()
Get the host.


getPort

public final int getPort()
Get the port.


getScheme

public final java.lang.String getScheme()
Get the scheme.


getRealm

public final java.lang.String getRealm()
Get the realm.


getCookie

public final java.lang.String getCookie()
Get the cookie

Since:
V0.3-1

setCookie

public final void setCookie(java.lang.String cookie)
Set the cookie

Since:
V0.3-1

getParams

public final NVPair[] getParams()
Get the authentication parameters.


setParams

public final void setParams(NVPair[] params)
Set the authentication parameters.


getExtraInfo

public final java.lang.Object getExtraInfo()
Get the extra info.


setExtraInfo

public final void setExtraInfo(java.lang.Object info)
Set the extra info.


toString

public java.lang.String toString()
Constructs a string containing the authorization info. The format is that of the http Authorization header.


hashCode

public int hashCode()
Produces a hash code based on host, scheme and realm. Port is not included for simplicity (and because it probably won't make much difference). Used in the AuthorizationInfo.AuthList hash table.


equals

public boolean equals(java.lang.Object obj)
Two AuthorizationInfos are considered equal if their host, port, scheme and realm match. Used in the AuthorizationInfo.AuthList hash table.


clone

public java.lang.Object clone()
Description copied from class: java.lang.Object
This method may be called to create a new copy of the Object. The typical behavior is as follows:
  • o == o.clone() is false
  • o.getClass() == o.clone().getClass() is true
  • o.equals(o) is true

However, these are not strict requirements, and may be violated if necessary. Of the three requirements, the last is the most commonly violated, particularly if the subclass does not override Object.equals(Object)>Object.equals(Object) 55 .

If the Object you call clone() on does not implement java.lang.Cloneable (which is a placeholder interface), then a CloneNotSupportedException is thrown. Notice that Object does not implement Cloneable; this method exists as a convenience for subclasses that do.

Object's implementation of clone allocates space for the new Object using the correct class, without calling any constructors, and then fills in all of the new field values with the old field values. Thus, it is a shallow copy. However, subclasses are permitted to make a deep copy.

All array types implement Cloneable, and override this method as follows (it should never fail):

 public Object clone()
 {
   try
     {
       super.clone();
     }
   catch (CloneNotSupportedException e)
     {
       throw new InternalError(e.getMessage());
     }
 }