ESAPI Specification

Revision as of 01:13, 16 June 2011 by Chris Schmidt (Talk | contribs)

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Proposed Migration Roadmap

  • ESAPI 2.1
    • Create new package org.owasp.esapi.core
    • Create new set of Interfaces in new package with each extending it's org.owasp.esapi counterpart
    • Deprecate methods in org.owasp.esapi Interfaces
  • ESAPI 2.5
    • Remove deprecated methods that were deprecated at or before ESAPI 2.0
    • Introduce new ServiceLocator API
  • ESAPI 3.0
    • Seperate Core API into it's own artifact/project called ESAPI-Core
    • Create new set of artifacts as outlined in ESAPI_Project_Structure
    • Introduce Core API Testing Suite

Core API


The AccessController is responsible for determining if the currently logged in user has access to a given resource. The resource can be anything that implements the Resource Interface.

Changes from ESAPI 2.0

  • Removed deprecated methods
  • Added Generic Stereotypes to the Key and Context parameters)


Parameter Description
R A class that implements the Resource Interface and represents the Resource the user is requesting access to
Context Any object that represents the current context of the Authorization request - this is generally a Key-Value map


<R extends Resource,Context> void assertAuthorized(Resource resource, Context context) throws AccessDeniedException

Assert that the currently logged in user can access the given Resource with the given Context parameters

Parameter Default Value Description
resource The resource that the user is attempting to access
context The context of the request. This could be any type of object - for instance if requesting access to data, the context may be the resource identifier for the identified resource.
Exception Description
AccessDeniedException If the assertion evaluates to false, an AccessControlException will be thrown with contextual information as to the reason for the failure

<R extends Resource,Context> boolean isAuthorized(Resource resource, Context context)

Determine if the given resource is accessible by the currently logged in User

Parameter Default Value Description
resource The resource that the user is attempting to access
context The context of the request. This could be any type of object - for instance if requesting access to data, the context may be the resource identifier for the identified resource.

Returns true if the resource is accessible to the currently logged in user and false if it is not.


<Type> Key addDirectReference(Type direct)

<Type> Type getDirectReference(Key key)

<Type> Key getIndirectReference(Type directReference)

<Type> Key removeDirectReference(Type directReference)

<Type> void update(Set<Type> directReferences)


User login() throws AuthenticationException

void logout() throws AuthenticationException


String encode(char c)

String decode(String s)


String encode(String s)

String decode(String s)

void addCodec(Codec c)

Set<Codec> getCodecs()

void setCodecs(Set<Codec> codecs)


PlainText decrypt(CipherText cipherText, SecretKey secretKey) throws EncryptionException

CipherText encrypt(PlainText plainText, SecretKey secretKey) throws EncryptionException

MessageDigest hash(PlainText plainText, Salt salt, Integer iterations) throws EncryptionException

String seal(String data, Long timestamp) throws EncryptionException

String sign(String data) throws EncryptionException

String unseal(String sealedData) throws EncryptionException

void verifySeal(String sealedData) throws DataIntegrityException

void verifySignature(String signature, String data) throws InvalidSignatureException


ExecutorResult executeSystemCommand(ExecutorTarget target, Encoder encoder) throws ExecutionException


String getErrorOutput()

String getStandardOutput()

Integer getExitValue()


native FileHandle getExecutable()

native Handle getWorkingDirectory()

OrderedMap<String,String> getParameters()


void addEvent(String eventName, String message)

void addException(Throwable exception)


Still thinking this one through


Still thinking this one through


Boolean getRandomBoolean()

Byte[] getRandomBytes(Integer len)

String getRandomFilename(String extension)

String getRandomUUID()

Integer getRandomInteger(Integer min, Integer max)

Long getRandomLong(Long min, Long max)

Float getRandomReal(Float min, Float max)

String getRandomString(Integer len, char[] charSet)


Marker Interface for Resources that a user can request access to.



<Type> Type getAccountID()

String getAccountName()

Long getExpirationTime()

Integer getFailedLoginCount()

Long getLastFailedLoginTime()

String getLastHostAddress()

Long getLastLoginTime()

Long getLastPasswordChangeTime()

String getLocale()

Set<String> getRoles()

String getScreenName()

Boolean isAnonymous()

Boolean isEnabled()

Boolean isExpired()

Boolean isInRole(String role)

Boolean isLocked()

Boolean isLoggedIn()


<Type> Boolean isValid(Type data)

<Type> void assertValid(Type data)


AccessDeniedException extends EnterpriseSecurityException

AccountDisabledException extends AuthenticationException

AccountLockedException extends AuthenticationException

AuthenticationException extends EnterpriseSecurityException

EncodingException extends EnterpriseSecurityRuntimeException

EncryptionException extends EnterpriseSecurityException

EnterpriseSecurityException extends Exception

EnterpriseSecurityRuntimeException extends RuntimeException

ExecutionException extends EnterpriseSecurityException

IncorrectCredentialsException extends AuthenticationException