Package org.apache.oltu.oauth2.common.utils

Class OAuthUtils

java.lang.Object

org.apache.oltu.oauth2.common.utils.OAuthUtils

public final class OAuthUtils
extends Object

Common OAuth Utils class.

Some methods based on the Utils class from OAuth V1.0a library available at: http://oauth.googlecode.com/svn/code/java/core/

Field Summary

Fields

Modifier and Type	Field	Description
static String	AUTH_SCHEME
static String	MULTIPART

Constructor Summary

Constructors

Constructor	Description
OAuthUtils()

Method Summary

Modifier and Type	Method	Description
static String[]	decodeClientAuthenticationHeader(String authenticationHeader)	Decodes the Basic Authentication header into a username and password
static Map<String,Object>	decodeForm(String form)	Parse a form-urlencoded document.
static Map<String,String>	decodeOAuthHeader(String header)
static String	decodePercent(String s)
static Set<String>	decodeScopes(String s)
static String	encodeAuthorizationBearerHeader(Map<String,Object> entries)	Construct an Authorization Bearer header
static String	encodeOAuthHeader(Map<String,Object> entries)	Construct a WWW-Authenticate header
static String	encodeScopes(Set<String> s)
static String	format(Collection<? extends Map.Entry<String,Object>> parameters, String encoding)	Translates parameters into application/x-www-form-urlencoded String
static String	getAuthHeaderField(String authHeader)
static String	getAuthzMethod(String header)
static OAuthProblemException	handleBadContentTypeException(String expectedContentType)
static OAuthProblemException	handleMissingParameters(Set<String> missingParams)	Creates OAuthProblemException that contains set of missing oauth parameters
static OAuthProblemException	handleNotAllowedParametersOAuthException(List<String> notAllowedParams)
static OAuthProblemException	handleOAuthProblemException(String message)	Creates invalid_request exception with given message
static boolean	hasContentType(String requestContentType, String requiredContentType)
static boolean	hasEmptyValues(String[] array)
static <T> T	instantiateClass(Class<T> clazz)
static <T> T	instantiateClassWithParameters(Class<T> clazz, Class<?>[] paramsTypes, Object[] paramValues)
static boolean	isEmpty(String value)
static boolean	isFormEncoded(String contentType)	Return true if the given Content-Type header means FORM_ENCODED.
static boolean	isMultipart(HttpServletRequest request)
static String	percentEncode(Iterable values)	Construct a &-separated list of the given values, percentEncoded.
static String	percentEncode(String s)
static String	saveStreamAsString(InputStream is)	Read data from Input Stream and save it as a String.
static String	toString(InputStream is, String defaultCharset)	Get the entity content as a String, using the provided default character set if none is found in the entity.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

AUTH_SCHEME

public static final String AUTH_SCHEME

See Also:

Constant Field Values

MULTIPART

public static final String MULTIPART

See Also:

Constant Field Values

Constructor Detail

OAuthUtils

public OAuthUtils()

Method Detail

format

public static String format(Collection<? extends Map.Entry<String,Object>> parameters,
                            String encoding)

Translates parameters into application/x-www-form-urlencoded String

Parameters:

parameters - parameters to encode

encoding - The name of a supported character encoding.

Returns:

Translated string

saveStreamAsString

public static String saveStreamAsString(InputStream is)
                                 throws IOException

Read data from Input Stream and save it as a String.

Parameters:

is - InputStream to be read

Returns:

String that was read from the stream

Throws:

IOException

toString

public static String toString(InputStream is,
                              String defaultCharset)
                       throws IOException

Get the entity content as a String, using the provided default character set if none is found in the entity. If defaultCharset is null, the default "UTF-8" is used.

Parameters:

is - input stream to be saved as string

defaultCharset - character set to be applied if none found in the entity

Returns:

the entity content as a String

Throws:

IllegalArgumentException - if entity is null or if content length > Integer.MAX_VALUE

IOException - if an error occurs reading the input stream

handleOAuthProblemException

public static OAuthProblemException handleOAuthProblemException(String message)

Creates invalid_request exception with given message

Parameters:

message - error message

Returns:

OAuthException

handleMissingParameters

public static OAuthProblemException handleMissingParameters(Set<String> missingParams)

Creates OAuthProblemException that contains set of missing oauth parameters

Parameters:

missingParams - missing oauth parameters

Returns:

OAuthProblemException with user friendly message about missing oauth parameters

handleBadContentTypeException

public static OAuthProblemException handleBadContentTypeException(String expectedContentType)

handleNotAllowedParametersOAuthException

public static OAuthProblemException handleNotAllowedParametersOAuthException(List<String> notAllowedParams)

decodeForm

public static Map<String,Object> decodeForm(String form)

Parse a form-urlencoded document.

isFormEncoded

public static boolean isFormEncoded(String contentType)

Return true if the given Content-Type header means FORM_ENCODED.

decodePercent

public static String decodePercent(String s)

percentEncode

public static String percentEncode(Iterable values)

Construct a &-separated list of the given values, percentEncoded.

percentEncode

public static String percentEncode(String s)

instantiateClass

public static <T> T instantiateClass(Class<T> clazz)
                              throws OAuthSystemException

Throws:

OAuthSystemException

instantiateClassWithParameters

public static <T> T instantiateClassWithParameters(Class<T> clazz,
                                                   Class<?>[] paramsTypes,
                                                   Object[] paramValues)
                                            throws OAuthSystemException

Throws:

OAuthSystemException

getAuthHeaderField

public static String getAuthHeaderField(String authHeader)

decodeOAuthHeader

public static Map<String,String> decodeOAuthHeader(String header)

decodeClientAuthenticationHeader

public static String[] decodeClientAuthenticationHeader(String authenticationHeader)

Decodes the Basic Authentication header into a username and password

Parameters:

authenticationHeader - String containing the encoded header value. e.g. "Basic dXNlcm5hbWU6cGFzc3dvcmQ="

Returns:

a String if the header could be decoded into a non null username and password or null.

encodeOAuthHeader

public static String encodeOAuthHeader(Map<String,Object> entries)

Construct a WWW-Authenticate header

encodeAuthorizationBearerHeader

public static String encodeAuthorizationBearerHeader(Map<String,Object> entries)

Construct an Authorization Bearer header

isEmpty

public static boolean isEmpty(String value)

hasEmptyValues

public static boolean hasEmptyValues(String[] array)

getAuthzMethod

public static String getAuthzMethod(String header)

decodeScopes

public static Set<String> decodeScopes(String s)

encodeScopes

public static String encodeScopes(Set<String> s)

isMultipart

public static boolean isMultipart(HttpServletRequest request)

hasContentType

public static boolean hasContentType(String requestContentType,
                                     String requiredContentType)