2 * Copyright 2001-2007 Internet2
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
20 * Base class for handlers based on a DOMPropertySet.
24 #include "Application.h"
25 #include "exceptions.h"
26 #include "ServiceProvider.h"
27 #include "SPRequest.h"
28 #include "handler/AbstractHandler.h"
29 #include "handler/LogoutHandler.h"
30 #include "remoting/ListenerService.h"
31 #include "util/SPConstants.h"
34 # include <saml/SAMLConfig.h>
35 # include <saml/binding/SAMLArtifact.h>
36 # include <saml/saml1/core/Protocols.h>
37 # include <saml/saml2/core/Protocols.h>
38 # include <saml/saml2/metadata/Metadata.h>
39 # include <saml/saml2/metadata/MetadataCredentialCriteria.h>
40 # include <saml/util/SAMLConstants.h>
41 # include <xmltooling/util/StorageService.h>
42 using namespace opensaml::saml2md;
44 # include "lite/SAMLConstants.h"
47 #include <xmltooling/XMLToolingConfig.h>
48 #include <xmltooling/util/URLEncoder.h>
50 using namespace shibsp;
51 using namespace samlconstants;
52 using namespace opensaml;
53 using namespace xmltooling;
54 using namespace xercesc;
58 SHIBSP_DLLLOCAL PluginManager< Handler,string,pair<const DOMElement*,const char*> >::Factory SAML1ConsumerFactory;
59 SHIBSP_DLLLOCAL PluginManager< Handler,string,pair<const DOMElement*,const char*> >::Factory SAML2ConsumerFactory;
60 SHIBSP_DLLLOCAL PluginManager< Handler,string,pair<const DOMElement*,const char*> >::Factory SAML2ArtifactResolutionFactory;
61 SHIBSP_DLLLOCAL PluginManager< Handler,string,pair<const DOMElement*,const char*> >::Factory ChainingLogoutInitiatorFactory;
62 SHIBSP_DLLLOCAL PluginManager< Handler,string,pair<const DOMElement*,const char*> >::Factory LocalLogoutInitiatorFactory;
63 SHIBSP_DLLLOCAL PluginManager< Handler,string,pair<const DOMElement*,const char*> >::Factory SAML2LogoutInitiatorFactory;
64 SHIBSP_DLLLOCAL PluginManager< Handler,string,pair<const DOMElement*,const char*> >::Factory SAML2LogoutFactory;
65 SHIBSP_DLLLOCAL PluginManager< Handler,string,pair<const DOMElement*,const char*> >::Factory AssertionLookupFactory;
66 SHIBSP_DLLLOCAL PluginManager< Handler,string,pair<const DOMElement*,const char*> >::Factory MetadataGeneratorFactory;
69 void SHIBSP_API shibsp::registerHandlers()
71 SPConfig& conf=SPConfig::getConfig();
73 conf.AssertionConsumerServiceManager.registerFactory(SAML1_PROFILE_BROWSER_ARTIFACT, SAML1ConsumerFactory);
74 conf.AssertionConsumerServiceManager.registerFactory(SAML1_PROFILE_BROWSER_POST, SAML1ConsumerFactory);
75 conf.AssertionConsumerServiceManager.registerFactory(SAML20_BINDING_HTTP_POST, SAML2ConsumerFactory);
76 conf.AssertionConsumerServiceManager.registerFactory(SAML20_BINDING_HTTP_POST_SIMPLESIGN, SAML2ConsumerFactory);
77 conf.AssertionConsumerServiceManager.registerFactory(SAML20_BINDING_HTTP_ARTIFACT, SAML2ConsumerFactory);
79 conf.ArtifactResolutionServiceManager.registerFactory(SAML20_BINDING_SOAP, SAML2ArtifactResolutionFactory);
81 conf.HandlerManager.registerFactory(SAML20_BINDING_URI, AssertionLookupFactory);
82 conf.HandlerManager.registerFactory("MetadataGenerator", MetadataGeneratorFactory);
84 conf.LogoutInitiatorManager.registerFactory(CHAINING_LOGOUT_INITIATOR, ChainingLogoutInitiatorFactory);
85 conf.LogoutInitiatorManager.registerFactory(LOCAL_LOGOUT_INITIATOR, LocalLogoutInitiatorFactory);
86 conf.LogoutInitiatorManager.registerFactory(SAML2_LOGOUT_INITIATOR, SAML2LogoutInitiatorFactory);
87 conf.SingleLogoutServiceManager.registerFactory(SAML20_BINDING_SOAP, SAML2LogoutFactory);
88 conf.SingleLogoutServiceManager.registerFactory(SAML20_BINDING_HTTP_REDIRECT, SAML2LogoutFactory);
89 conf.SingleLogoutServiceManager.registerFactory(SAML20_BINDING_HTTP_POST, SAML2LogoutFactory);
90 conf.SingleLogoutServiceManager.registerFactory(SAML20_BINDING_HTTP_POST_SIMPLESIGN, SAML2LogoutFactory);
91 conf.SingleLogoutServiceManager.registerFactory(SAML20_BINDING_HTTP_ARTIFACT, SAML2LogoutFactory);
94 AbstractHandler::AbstractHandler(
95 const DOMElement* e, Category& log, DOMNodeFilter* filter, const map<string,string>* remapper
96 ) : m_log(log), m_configNS(shibspconstants::SHIB2SPCONFIG_NS) {
97 load(e,log,filter,remapper);
102 void AbstractHandler::checkError(const XMLObject* response, const saml2md::RoleDescriptor* role) const
104 const saml2p::StatusResponseType* r2 = dynamic_cast<const saml2p::StatusResponseType*>(response);
106 const saml2p::Status* status = r2->getStatus();
108 const saml2p::StatusCode* sc = status->getStatusCode();
109 const XMLCh* code = sc ? sc->getValue() : NULL;
110 if (code && !XMLString::equals(code,saml2p::StatusCode::SUCCESS)) {
111 FatalProfileException ex("SAML response contained an error.");
112 annotateException(&ex, role, status); // throws it
117 const saml1p::Response* r1 = dynamic_cast<const saml1p::Response*>(response);
119 const saml1p::Status* status = r1->getStatus();
121 const saml1p::StatusCode* sc = status->getStatusCode();
122 const QName* code = sc ? sc->getValue() : NULL;
123 if (code && *code != saml1p::StatusCode::SUCCESS) {
124 FatalProfileException ex("SAML response contained an error.");
125 ex.addProperty("statusCode", code->toString().c_str());
126 if (sc->getStatusCode()) {
127 code = sc->getStatusCode()->getValue();
129 ex.addProperty("statusCode2", code->toString().c_str());
131 if (status->getStatusMessage()) {
132 auto_ptr_char msg(status->getStatusMessage()->getMessage());
133 if (msg.get() && *msg.get())
134 ex.addProperty("statusMessage", msg.get());
142 void AbstractHandler::fillStatus(saml2p::StatusResponseType& response, const XMLCh* code, const XMLCh* subcode, const char* msg) const
144 saml2p::Status* status = saml2p::StatusBuilder::buildStatus();
145 saml2p::StatusCode* scode = saml2p::StatusCodeBuilder::buildStatusCode();
146 status->setStatusCode(scode);
147 scode->setValue(code);
149 saml2p::StatusCode* ssubcode = saml2p::StatusCodeBuilder::buildStatusCode();
150 scode->setStatusCode(ssubcode);
151 ssubcode->setValue(subcode);
154 pair<bool,bool> flag = getBool("detailedErrors", m_configNS.get());
155 auto_ptr_XMLCh widemsg((flag.first && flag.second) ? msg : "Error processing request.");
156 saml2p::StatusMessage* sm = saml2p::StatusMessageBuilder::buildStatusMessage();
157 status->setStatusMessage(sm);
158 sm->setMessage(widemsg.get());
160 response.setStatus(status);
163 long AbstractHandler::sendMessage(
164 const MessageEncoder& encoder,
166 const char* relayState,
167 const char* destination,
168 const saml2md::RoleDescriptor* role,
169 const Application& application,
170 HTTPResponse& httpResponse,
174 const EntityDescriptor* entity = role ? dynamic_cast<const EntityDescriptor*>(role->getParent()) : NULL;
175 const PropertySet* relyingParty = application.getRelyingParty(entity);
176 pair<bool,const char*> flag = signIfPossible ? make_pair(true,"true") : relyingParty->getString("signing");
177 if (role && flag.first &&
178 (!strcmp(flag.second, "true") ||
179 (encoder.isUserAgentPresent() && !strcmp(flag.second, "front")) ||
180 (!encoder.isUserAgentPresent() && !strcmp(flag.second, "back")))) {
181 CredentialResolver* credResolver=application.getCredentialResolver();
183 Locker credLocker(credResolver);
184 // Fill in criteria to use.
185 MetadataCredentialCriteria mcc(*role);
186 mcc.setUsage(CredentialCriteria::SIGNING_CREDENTIAL);
187 pair<bool,const char*> keyName = relyingParty->getString("keyName");
189 mcc.getKeyNames().insert(keyName.second);
190 pair<bool,const XMLCh*> sigalg = relyingParty->getXMLString("signingAlg");
192 mcc.setXMLAlgorithm(sigalg.second);
193 const Credential* cred = credResolver->resolve(&mcc);
196 return encoder.encode(
205 relyingParty->getXMLString("digestAlg").second
209 m_log.warn("no signing credential resolved, leaving message unsigned");
213 m_log.warn("no credential resolver installed, leaving message unsigned");
218 return encoder.encode(httpResponse, msg, destination, entity, relayState, &application);
223 void AbstractHandler::preserveRelayState(const Application& application, HTTPResponse& response, string& relayState) const
225 if (relayState.empty())
228 // No setting means just pass it by value.
229 pair<bool,const char*> mech=getString("relayState");
230 if (!mech.first || !mech.second || !*mech.second)
233 if (!strcmp(mech.second, "cookie")) {
234 // Here we store the state in a cookie and send a fixed
235 // value so we can recognize it on the way back.
236 if (relayState != "cookie") {
237 const URLEncoder* urlenc = XMLToolingConfig::getConfig().getURLEncoder();
238 pair<string,const char*> shib_cookie=application.getCookieNameProps("_shibstate_");
239 string stateval = urlenc->encode(relayState.c_str()) + shib_cookie.second;
240 response.setCookie(shib_cookie.first.c_str(),stateval.c_str());
241 relayState = "cookie";
244 else if (strstr(mech.second,"ss:")==mech.second) {
245 if (relayState.find("ss:")!=0) {
248 if (SPConfig::getConfig().isEnabled(SPConfig::OutOfProcess)) {
250 StorageService* storage = application.getServiceProvider().getStorageService(mech.second);
253 SAMLConfig::getConfig().generateRandomBytes(rsKey,10);
254 rsKey = SAMLArtifact::toHex(rsKey);
255 if (!storage->createString("RelayState", rsKey.c_str(), relayState.c_str(), time(NULL) + 600))
256 throw IOException("Attempted to insert duplicate storage key.");
257 relayState = string(mech.second-3) + ':' + rsKey;
260 m_log.error("Storage-backed RelayState with invalid StorageService ID (%s)", mech.second);
265 else if (SPConfig::getConfig().isEnabled(SPConfig::InProcess)) {
266 DDF out,in = DDF("set::RelayState").structure();
267 in.addmember("id").string(mech.second);
268 in.addmember("value").string(relayState.c_str());
269 DDFJanitor jin(in),jout(out);
270 out = application.getServiceProvider().getListenerService()->send(in);
272 throw IOException("StorageService-backed RelayState mechanism did not return a state key.");
273 relayState = string(mech.second-3) + ':' + out.string();
279 throw ConfigurationException("Unsupported relayState mechanism ($1).", params(1,mech.second));
282 void AbstractHandler::recoverRelayState(const Application& application, HTTPRequest& httpRequest, string& relayState, bool clear) const
284 SPConfig& conf = SPConfig::getConfig();
286 // Look for StorageService-backed state of the form "ss:SSID:key".
287 const char* state = relayState.c_str();
288 if (strstr(state,"ss:")==state) {
290 const char* key = strchr(state,':');
292 string ssid = relayState.substr(3, key - state);
294 if (!ssid.empty() && *key) {
295 if (conf.isEnabled(SPConfig::OutOfProcess)) {
297 StorageService* storage = conf.getServiceProvider()->getStorageService(ssid.c_str());
300 if (storage->readString("RelayState",ssid.c_str(),&relayState)>0) {
302 storage->deleteString("RelayState",ssid.c_str());
309 Category::getInstance(SHIBSP_LOGCAT".Handler").error(
310 "Storage-backed RelayState with invalid StorageService ID (%s)", ssid.c_str()
316 else if (conf.isEnabled(SPConfig::InProcess)) {
317 DDF out,in = DDF("get::RelayState").structure();
318 in.addmember("id").string(ssid.c_str());
319 in.addmember("key").string(key);
320 in.addmember("clear").integer(clear ? 1 : 0);
321 DDFJanitor jin(in),jout(out);
322 out = application.getServiceProvider().getListenerService()->send(in);
323 if (!out.isstring()) {
324 m_log.error("StorageService-backed RelayState mechanism did not return a state value.");
328 relayState = out.string();
336 if (conf.isEnabled(SPConfig::InProcess)) {
337 if (relayState == "cookie") {
338 // Pull the value from the "relay state" cookie.
339 pair<string,const char*> relay_cookie = application.getCookieNameProps("_shibstate_");
340 // In process, we should be able to cast down to a full SPRequest.
341 SPRequest& request = dynamic_cast<SPRequest&>(httpRequest);
342 const char* state = request.getCookie(relay_cookie.first.c_str());
343 if (state && *state) {
344 // URL-decode the value.
345 char* rscopy=strdup(state);
346 XMLToolingConfig::getConfig().getURLEncoder()->decode(rscopy);
351 request.setCookie(relay_cookie.first.c_str(),relay_cookie.second);
358 // Check for "default" value.
359 if (relayState.empty() || relayState == "default") {
360 pair<bool,const char*> homeURL=application.getString("homeURL");
361 relayState=homeURL.first ? homeURL.second : "/";
366 if (relayState == "default")