X-Git-Url: http://www.project-moonshot.org/gitweb/?p=mech_eap.git;a=blobdiff_plain;f=util_saml.cpp;h=5346cc4537234f5957a2c822859f1f87f9f73026;hp=29bbcb03c5b620c076673864a5fa2a3750a48984;hb=ae79fdae047f980d01b2b4e84ccea52e24d8c7a0;hpb=abe5b8c2a2280a02a565fc574ed859f42da14118 diff --git a/util_saml.cpp b/util_saml.cpp index 29bbcb0..5346cc4 100644 --- a/util_saml.cpp +++ b/util_saml.cpp @@ -1,5 +1,5 @@ /* - * Copyright (c) 2010, JANET(UK) + * Copyright (c) 2011, JANET(UK) * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -30,17 +30,26 @@ * SUCH DAMAGE. */ +/* + * SAML attribute provider implementation. + */ + #include "gssapiP_eap.h" #include #include -#include +#include +#include #include +#include +#include -#include +#include +#include #include #include +#include using namespace xmltooling; using namespace opensaml::saml2md; @@ -48,32 +57,21 @@ using namespace opensaml; using namespace xercesc; using namespace std; -class auto_ptr_gss_buffer { - MAKE_NONCOPYABLE(auto_ptr_gss_buffer); - public: - auto_ptr_gss_buffer() : m_buf(NULL) { - } - auto_ptr_gss_buffer(const gss_buffer_t src) { - m_buf = new XMLCh[src->length + 1]; - XMLString::transcode((const char *)src->value, m_buf, src->length); - } - ~auto_ptr_gss_buffer() { - xercesc::XMLString::release(&m_buf); - } - const XMLCh* get() const { - return m_buf; - } - XMLCh* release() { - XMLCh *temp = m_buf; m_buf = NULL; return temp; - } - private: - XMLCh *m_buf; -}; - /* * gss_eap_saml_assertion_provider is for retrieving the underlying * assertion. */ +gss_eap_saml_assertion_provider::gss_eap_saml_assertion_provider(void) +{ + m_assertion = NULL; + m_authenticated = false; +} + +gss_eap_saml_assertion_provider::~gss_eap_saml_assertion_provider(void) +{ + delete m_assertion; +} + bool gss_eap_saml_assertion_provider::initFromExistingContext(const gss_eap_attr_ctx *manager, const gss_eap_attr_provider *ctx) @@ -87,7 +85,7 @@ gss_eap_saml_assertion_provider::initFromExistingContext(const gss_eap_attr_ctx return false; saml = static_cast(ctx); - setAssertion(saml->getAssertion()); + setAssertion(saml->getAssertion(), saml->authenticated()); return true; } @@ -99,7 +97,7 @@ gss_eap_saml_assertion_provider::initFromGssContext(const gss_eap_attr_ctx *mana { const gss_eap_radius_attr_provider *radius; gss_buffer_desc value = GSS_C_EMPTY_BUFFER; - int authenticated, complete, more = -1; + int authenticated, complete; OM_uint32 minor; assert(m_assertion == NULL); @@ -107,12 +105,16 @@ gss_eap_saml_assertion_provider::initFromGssContext(const gss_eap_attr_ctx *mana if (!gss_eap_attr_provider::initFromGssContext(manager, gssCred, gssCtx)) return false; + /* + * XXX TODO we need to support draft-howlett-radius-saml-attr-00 + */ radius = static_cast (m_manager->getProvider(ATTR_TYPE_RADIUS)); if (radius != NULL && - radius->getAttribute(512 /* XXX */, &authenticated, &complete, - &value, NULL, &more)) { - m_assertion = parseAssertion(&value); + radius->getFragmentedAttribute(PW_SAML_AAA_ASSERTION, + VENDORPEC_UKERNA, + &authenticated, &complete, &value)) { + setAssertion(&value, authenticated); gss_release_buffer(&minor, &value); } else { m_assertion = NULL; @@ -121,21 +123,34 @@ gss_eap_saml_assertion_provider::initFromGssContext(const gss_eap_attr_ctx *mana return true; } -gss_eap_saml_assertion_provider::~gss_eap_saml_assertion_provider(void) +void +gss_eap_saml_assertion_provider::setAssertion(const saml2::Assertion *assertion, + bool authenticated) { + delete m_assertion; + + if (assertion != NULL) { +#ifdef __APPLE__ + m_assertion = (saml2::Assertion *)((void *)assertion->clone()); +#else + m_assertion = dynamic_cast(assertion->clone()); +#endif + m_authenticated = authenticated; + } else { + m_assertion = NULL; + m_authenticated = false; + } } void -gss_eap_saml_assertion_provider::setAssertion(const saml2::Assertion *assertion) +gss_eap_saml_assertion_provider::setAssertion(const gss_buffer_t buffer, + bool authenticated) { - delete m_assertion; - if (assertion != NULL) - m_assertion = dynamic_cast(assertion->clone()); - else - m_assertion = NULL; + m_assertion = parseAssertion(buffer); + m_authenticated = (m_assertion != NULL && authenticated); } saml2::Assertion * @@ -146,38 +161,98 @@ gss_eap_saml_assertion_provider::parseAssertion(const gss_buffer_t buffer) DOMDocument *doc; const XMLObjectBuilder *b; - doc = XMLToolingConfig::getConfig().getParser().parse(istream); - b = XMLObjectBuilder::getBuilder(doc->getDocumentElement()); + try { + doc = XMLToolingConfig::getConfig().getParser().parse(istream); + if (doc == NULL) + return NULL; + + b = XMLObjectBuilder::getBuilder(doc->getDocumentElement()); - return dynamic_cast(b->buildFromDocument(doc)); +#ifdef __APPLE__ + return (saml2::Assertion *)((void *)b->buildFromDocument(doc)); +#else + return dynamic_cast(b->buildFromDocument(doc)); +#endif + } catch (exception &e) { + return NULL; + } } bool gss_eap_saml_assertion_provider::getAttributeTypes(gss_eap_attr_enumeration_cb addAttribute, void *data) const { + bool ret; + /* just add the prefix */ - return addAttribute(this, GSS_C_NO_BUFFER, data); + if (m_assertion != NULL) + ret = addAttribute(this, GSS_C_NO_BUFFER, data); + else + ret = true; + + return ret; } -void -gss_eap_saml_assertion_provider::setAttribute(int complete, +bool +gss_eap_saml_assertion_provider::setAttribute(int complete GSSEAP_UNUSED, const gss_buffer_t attr, const gss_buffer_t value) { if (attr == GSS_C_NO_BUFFER || attr->length == 0) { - saml2::Assertion *assertion = parseAssertion(value); - - delete m_assertion; - m_assertion = assertion; + setAssertion(value); + return true; } + + return false; } -void -gss_eap_saml_assertion_provider::deleteAttribute(const gss_buffer_t value) +bool +gss_eap_saml_assertion_provider::deleteAttribute(const gss_buffer_t value GSSEAP_UNUSED) { delete m_assertion; m_assertion = NULL; + m_authenticated = false; + + return true; +} + +time_t +gss_eap_saml_assertion_provider::getExpiryTime(void) const +{ + saml2::Conditions *conditions; + time_t expiryTime = 0; + + if (m_assertion == NULL) + return 0; + + conditions = m_assertion->getConditions(); + + if (conditions != NULL && conditions->getNotOnOrAfter() != NULL) + expiryTime = conditions->getNotOnOrAfter()->getEpoch(); + + return expiryTime; +} + +OM_uint32 +gss_eap_saml_assertion_provider::mapException(OM_uint32 *minor, + std::exception &e) const +{ + if (typeid(e) == typeid(SecurityPolicyException)) + *minor = GSSEAP_SAML_SEC_POLICY_FAILURE; + else if (typeid(e) == typeid(BindingException)) + *minor = GSSEAP_SAML_BINDING_FAILURE; + else if (typeid(e) == typeid(ProfileException)) + *minor = GSSEAP_SAML_PROFILE_FAILURE; + else if (typeid(e) == typeid(FatalProfileException)) + *minor = GSSEAP_SAML_FATAL_PROFILE_FAILURE; + else if (typeid(e) == typeid(RetryableProfileException)) + *minor = GSSEAP_SAML_RETRY_PROFILE_FAILURE; + else if (typeid(e) == typeid(MetadataException)) + *minor = GSSEAP_SAML_METADATA_FAILURE; + else + return GSS_S_CONTINUE_NEEDED; + + return GSS_S_FAILURE; } bool @@ -185,12 +260,12 @@ gss_eap_saml_assertion_provider::getAttribute(const gss_buffer_t attr, int *authenticated, int *complete, gss_buffer_t value, - gss_buffer_t display_value, + gss_buffer_t display_value GSSEAP_UNUSED, int *more) const { string str; - if (attr != GSS_C_NO_BUFFER || attr->length != 0) + if (attr != GSS_C_NO_BUFFER && attr->length != 0) return false; if (m_assertion == NULL) @@ -199,8 +274,10 @@ gss_eap_saml_assertion_provider::getAttribute(const gss_buffer_t attr, if (*more != -1) return false; - *authenticated = true; - *complete = false; + if (authenticated != NULL) + *authenticated = m_authenticated; + if (complete != NULL) + *complete = true; XMLHelper::serialize(m_assertion->marshall((DOMDocument *)NULL), str); @@ -212,13 +289,16 @@ gss_eap_saml_assertion_provider::getAttribute(const gss_buffer_t attr, gss_any_t gss_eap_saml_assertion_provider::mapToAny(int authenticated, - gss_buffer_t type_id) const + gss_buffer_t type_id GSSEAP_UNUSED) const { + if (authenticated && !m_authenticated) + return (gss_any_t)NULL; + return (gss_any_t)m_assertion; } void -gss_eap_saml_assertion_provider::releaseAnyNameMapping(gss_buffer_t type_id, +gss_eap_saml_assertion_provider::releaseAnyNameMapping(gss_buffer_t type_id GSSEAP_UNUSED, gss_any_t input) const { delete ((saml2::Assertion *)input); @@ -254,9 +334,8 @@ gss_eap_saml_assertion_provider::initFromBuffer(const gss_eap_attr_ctx *ctx, assert(m_assertion == NULL); - m_assertion = parseAssertion(buffer); - if (m_assertion == NULL) - return false; + setAssertion(buffer); + /* TODO XXX how to propagate authenticated flag? */ return true; } @@ -266,7 +345,7 @@ gss_eap_saml_assertion_provider::init(void) { gss_eap_attr_ctx::registerProvider(ATTR_TYPE_SAML_ASSERTION, "urn:ietf:params:gss-eap:saml-aaa-assertion", - gss_eap_saml_assertion_provider::createAttrContext); + createAttrContext); return true; } @@ -282,80 +361,115 @@ gss_eap_saml_assertion_provider::createAttrContext(void) return new gss_eap_saml_assertion_provider; } +saml2::Assertion * +gss_eap_saml_assertion_provider::initAssertion(void) +{ + delete m_assertion; + m_assertion = saml2::AssertionBuilder::buildAssertion(); + m_authenticated = false; + + return m_assertion; +} + /* * gss_eap_saml_attr_provider is for retrieving the underlying attributes. */ -const saml2::Assertion * -gss_eap_saml_attr_provider::getAssertion(void) const +bool +gss_eap_saml_attr_provider::getAssertion(int *authenticated, + saml2::Assertion **pAssertion, + bool createIfAbsent) const { - const gss_eap_saml_assertion_provider *saml; - + gss_eap_saml_assertion_provider *saml; + + if (authenticated != NULL) + *authenticated = false; + if (pAssertion != NULL) + *pAssertion = NULL; + saml = static_cast (m_manager->getProvider(ATTR_TYPE_SAML_ASSERTION)); - if (saml != NULL) - return saml->getAssertion(); + if (saml == NULL) + return false; - return NULL; -} + if (authenticated != NULL) + *authenticated = saml->authenticated(); + if (pAssertion != NULL) + *pAssertion = saml->getAssertion(); + + if (saml->getAssertion() == NULL) { + if (createIfAbsent) { + if (authenticated != NULL) + *authenticated = false; + if (pAssertion != NULL) + *pAssertion = saml->initAssertion(); + } else + return false; + } -gss_eap_saml_attr_provider::~gss_eap_saml_attr_provider(void) -{ - /* Nothing to do, we're just a wrapper around the assertion provider. */ + return true; } bool gss_eap_saml_attr_provider::getAttributeTypes(gss_eap_attr_enumeration_cb addAttribute, void *data) const { - const saml2::Assertion *assertion = getAssertion(); - bool ret = true; + saml2::Assertion *assertion; + int authenticated; - if (assertion == NULL) + if (!getAssertion(&authenticated, &assertion)) return true; - const vector& attrs2 = - const_cast(assertion->getAttributeStatements().front())->getAttributes(); - for (vector::const_iterator a = attrs2.begin(); - a != attrs2.end(); - ++a) - { - const XMLCh *attributeName = (*a)->getName(); - const XMLCh *attributeNameFormat = (*a)->getNameFormat(); - XMLCh *qualifiedName; - XMLCh space[2] = { ' ', 0 }; - gss_buffer_desc utf8; - - qualifiedName = new XMLCh[XMLString::stringLen(attributeName) + 1 + - XMLString::stringLen(attributeNameFormat) + 1]; - XMLString::copyString(qualifiedName, attributeName); - XMLString::catString(qualifiedName, space); - XMLString::catString(qualifiedName, attributeNameFormat); - - utf8.value = (void *)toUTF8(qualifiedName); - utf8.length = strlen((char *)utf8.value); - - ret = addAttribute(this, &utf8, data); - - delete qualifiedName; - delete qualifiedName; - - if (!ret) - break; - } + /* + * Note: the first prefix is added by the attribute provider manager + * + * From draft-hartman-gss-eap-naming-00: + * + * Each attribute carried in the assertion SHOULD also be a GSS name + * attribute. The name of this attribute has three parts, all separated + * by an ASCII space character. The first part is + * urn:ietf:params:gss-eap:saml-attr. The second part is the URI for + * the SAML attribute name format. The final part is the name of the + * SAML attribute. If the mechanism performs an additional attribute + * query, the retrieved attributes SHOULD be GSS-API name attributes + * using the same name syntax. + */ + /* For each attribute statement, look for an attribute match */ + const vector &statements = + const_cast(assertion)->getAttributeStatements(); - return ret; -} + for (vector::const_iterator s = statements.begin(); + s != statements.end(); + ++s) { + const vector &attrs = + const_cast(*s)->getAttributes(); -void -gss_eap_saml_attr_provider::setAttribute(int complete, - const gss_buffer_t attr, - const gss_buffer_t value) -{ -} + for (vector::const_iterator a = attrs.begin(); a != attrs.end(); ++a) { + const XMLCh *attributeName = (*a)->getName(); + const XMLCh *attributeNameFormat = (*a)->getNameFormat(); + XMLCh *qualifiedName; + XMLCh space[2] = { ' ', 0 }; + gss_buffer_desc utf8; + bool ret; -void -gss_eap_saml_attr_provider::deleteAttribute(const gss_buffer_t value) -{ + qualifiedName = new XMLCh[XMLString::stringLen(attributeNameFormat) + 1 + + XMLString::stringLen(attributeName) + 1]; + XMLString::copyString(qualifiedName, attributeNameFormat); + XMLString::catString(qualifiedName, space); + XMLString::catString(qualifiedName, attributeName); + + utf8.value = (void *)toUTF8(qualifiedName); + utf8.length = strlen((char *)utf8.value); + + ret = addAttribute(this, &utf8, data); + + delete qualifiedName; + + if (!ret) + return ret; + } + } + + return true; } static BaseRefVectorOf * @@ -368,37 +482,143 @@ decomposeAttributeName(const gss_buffer_t attr) delete qualifiedAttr; + if (components->size() != 2) { + delete components; + components = NULL; + } + return components; } -const saml2::Attribute * -gss_eap_saml_attr_provider::getAttribute(const gss_buffer_t attr) const +bool +gss_eap_saml_attr_provider::setAttribute(int complete GSSEAP_UNUSED, + const gss_buffer_t attr, + const gss_buffer_t value) { - /* Check we have an assertion */ - const saml2::Assertion *assertion = getAssertion(); - if (assertion == NULL || + saml2::Assertion *assertion; + saml2::Attribute *attribute; + saml2::AttributeValue *attributeValue; + saml2::AttributeStatement *attributeStatement; + + if (!getAssertion(NULL, &assertion, true)) + return false; + + if (assertion->getAttributeStatements().size() != 0) { + attributeStatement = assertion->getAttributeStatements().front(); + } else { + attributeStatement = saml2::AttributeStatementBuilder::buildAttributeStatement(); + assertion->getAttributeStatements().push_back(attributeStatement); + } + + /* Check the attribute name consists of name format | whsp | name */ + BaseRefVectorOf *components = decomposeAttributeName(attr); + if (components == NULL) + return false; + + attribute = saml2::AttributeBuilder::buildAttribute(); + attribute->setNameFormat(components->elementAt(0)); + attribute->setName(components->elementAt(1)); + + XMLCh *xmlValue = new XMLCh[value->length + 1]; + XMLString::transcode((const char *)value->value, xmlValue, attr->length); + + attributeValue = saml2::AttributeValueBuilder::buildAttributeValue(); + attributeValue->setTextContent(xmlValue); + + attribute->getAttributeValues().push_back(attributeValue); + + assert(attributeStatement != NULL); + attributeStatement->getAttributes().push_back(attribute); + + delete components; + delete xmlValue; + + return true; +} + +bool +gss_eap_saml_attr_provider::deleteAttribute(const gss_buffer_t attr) +{ + saml2::Assertion *assertion; + bool ret = false; + + if (!getAssertion(NULL, &assertion) || assertion->getAttributeStatements().size() == 0) - return NULL; + return false; /* Check the attribute name consists of name format | whsp | name */ BaseRefVectorOf *components = decomposeAttributeName(attr); - if (components == NULL || components->size() != 2) { - delete components; - return NULL; + if (components == NULL) + return false; + + /* For each attribute statement, look for an attribute match */ + const vector &statements = + const_cast(assertion)->getAttributeStatements(); + + for (vector::const_iterator s = statements.begin(); + s != statements.end(); + ++s) { + const vector &attrs = + const_cast(*s)->getAttributes(); + ssize_t index = -1, i = 0; + + /* There's got to be an easier way to do this */ + for (vector::const_iterator a = attrs.begin(); + a != attrs.end(); + ++a) { + if (XMLString::equals((*a)->getNameFormat(), components->elementAt(0)) && + XMLString::equals((*a)->getName(), components->elementAt(1))) { + index = i; + break; + } + ++i; + } + if (index != -1) { + (*s)->getAttributes().erase((*s)->getAttributes().begin() + index); + ret = true; + } } + delete components; + + return ret; +} + +bool +gss_eap_saml_attr_provider::getAttribute(const gss_buffer_t attr, + int *authenticated, + int *complete, + const saml2::Attribute **pAttribute) const +{ + saml2::Assertion *assertion; + + if (authenticated != NULL) + *authenticated = false; + if (complete != NULL) + *complete = true; + *pAttribute = NULL; + + if (!getAssertion(authenticated, &assertion) || + assertion->getAttributeStatements().size() == 0) + return false; + + /* Check the attribute name consists of name format | whsp | name */ + BaseRefVectorOf *components = decomposeAttributeName(attr); + if (components == NULL) + return false; + /* For each attribute statement, look for an attribute match */ - const vector &statements = - assertion->getAttributeStatements(); + const vector &statements = + const_cast(assertion)->getAttributeStatements(); const saml2::Attribute *ret = NULL; for (vector::const_iterator s = statements.begin(); s != statements.end(); ++s) { - const vector& attrs = + const vector &attrs = const_cast(*s)->getAttributes(); - for (vector::const_iterator a = attrs.begin(); a != attrs.end(); ++a) { + for (vector::const_iterator a = attrs.begin(); a != attrs.end(); ++a) { if (XMLString::equals((*a)->getNameFormat(), components->elementAt(0)) && XMLString::equals((*a)->getName(), components->elementAt(1))) { ret = *a; @@ -412,7 +632,9 @@ gss_eap_saml_attr_provider::getAttribute(const gss_buffer_t attr) const delete components; - return ret; + *pAttribute = ret; + + return (ret != NULL); } bool @@ -429,8 +651,7 @@ gss_eap_saml_attr_provider::getAttribute(const gss_buffer_t attr, *more = 0; - a = getAttribute(attr); - if (a == NULL) + if (!getAttribute(attr, authenticated, complete, &a)) return false; nvalues = a->getAttributeValues().size(); @@ -439,19 +660,21 @@ gss_eap_saml_attr_provider::getAttribute(const gss_buffer_t attr, i = 0; else if (i >= nvalues) return false; - av = dynamic_cast(a->getAttributeValues().at(i) -); - if (av == NULL) - return false; - - *authenticated = TRUE; - *complete = FALSE; - - value->value = toUTF8(av->getTextContent(), true); - value->length = strlen((char *)value->value); - - if (display_value != NULL) - duplicateBuffer(*value, display_value); +#ifdef __APPLE__ + av = (const saml2::AttributeValue *)((void *)(a->getAttributeValues().at(i))); +#else + av = dynamic_cast(a->getAttributeValues().at(i)); +#endif + if (av != NULL) { + if (value != NULL) { + value->value = toUTF8(av->getTextContent(), true); + value->length = strlen((char *)value->value); + } + if (display_value != NULL) { + display_value->value = toUTF8(av->getTextContent(), true); + display_value->length = strlen((char *)value->value); + } + } if (nvalues > ++i) *more = i; @@ -460,15 +683,15 @@ gss_eap_saml_attr_provider::getAttribute(const gss_buffer_t attr, } gss_any_t -gss_eap_saml_attr_provider::mapToAny(int authenticated, - gss_buffer_t type_id) const +gss_eap_saml_attr_provider::mapToAny(int authenticated GSSEAP_UNUSED, + gss_buffer_t type_id GSSEAP_UNUSED) const { return (gss_any_t)NULL; } void -gss_eap_saml_attr_provider::releaseAnyNameMapping(gss_buffer_t type_id, - gss_any_t input) const +gss_eap_saml_attr_provider::releaseAnyNameMapping(gss_buffer_t type_id GSSEAP_UNUSED, + gss_any_t input GSSEAP_UNUSED) const { } @@ -491,7 +714,7 @@ gss_eap_saml_attr_provider::init(void) { gss_eap_attr_ctx::registerProvider(ATTR_TYPE_SAML, "urn:ietf:params:gss-eap:saml-attr", - gss_eap_saml_attr_provider::createAttrContext); + createAttrContext); return true; } @@ -506,3 +729,25 @@ gss_eap_saml_attr_provider::createAttrContext(void) { return new gss_eap_saml_attr_provider; } + +OM_uint32 +gssEapSamlAttrProvidersInit(OM_uint32 *minor) +{ + if (!gss_eap_saml_assertion_provider::init() || + !gss_eap_saml_attr_provider::init()) { + *minor = GSSEAP_SAML_INIT_FAILURE; + return GSS_S_FAILURE; + } + + return GSS_S_COMPLETE; +} + +OM_uint32 +gssEapSamlAttrProvidersFinalize(OM_uint32 *minor) +{ + gss_eap_saml_attr_provider::finalize(); + gss_eap_saml_assertion_provider::finalize(); + + *minor = 0; + return GSS_S_COMPLETE; +}