shibsp/ServiceProvider.cpp

   1 /**
   2  * Licensed to the University Corporation for Advanced Internet
   3  * Development, Inc. (UCAID) under one or more contributor license
   4  * agreements. See the NOTICE file distributed with this work for
   5  * additional information regarding copyright ownership.
   6  *
   7  * UCAID licenses this file to you under the Apache License,
   8  * Version 2.0 (the "License"); you may not use this file except
   9  * in compliance with the License. You may obtain a copy of the
  10  * License at
  11  *
  12  * http://www.apache.org/licenses/LICENSE-2.0
  13  *
  14  * Unless required by applicable law or agreed to in writing,
  15  * software distributed under the License is distributed on an
  16  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
  17  * either express or implied. See the License for the specific
  18  * language governing permissions and limitations under the License.
  19  */
  20
  21 /**
  22  * ServiceProvider.cpp
  23  *
  24  * Interface to a Shibboleth ServiceProvider instance.
  25  */
  26
  27 #include "internal.h"
  28 #include "exceptions.h"
  29 #include "AccessControl.h"
  30 #include "Application.h"
  31 #include "ServiceProvider.h"
  32 #include "SessionCache.h"
  33 #include "SPRequest.h"
  34 #include "attribute/Attribute.h"
  35 #include "handler/SessionInitiator.h"
  36 #include "util/TemplateParameters.h"
  37
  38 #include <fstream>
  39 #include <sstream>
  40 #include <boost/algorithm/string.hpp>
  41 #ifndef SHIBSP_LITE
  42 # include <saml/exceptions.h>
  43 # include <saml/saml2/metadata/MetadataProvider.h>
  44 #endif
  45 #include <xmltooling/XMLToolingConfig.h>
  46 #include <xmltooling/util/NDC.h>
  47 #include <xmltooling/util/PathResolver.h>
  48 #include <xmltooling/util/URLEncoder.h>
  49 #include <xmltooling/util/XMLHelper.h>
  50
  51 using namespace shibsp;
  52 using namespace xmltooling::logging;
  53 using namespace xmltooling;
  54 using namespace std;
  55
  56 namespace shibsp {
  57     SHIBSP_DLLLOCAL PluginManager<ServiceProvider,string,const DOMElement*>::Factory XMLServiceProviderFactory;
  58
  59     long SHIBSP_DLLLOCAL sendError(
  60         Category& log, SPRequest& request, const Application* app, const char* page, TemplateParameters& tp, bool mayRedirect=true
  61         )
  62     {
  63         // The properties we need can be set in the RequestMap, or the Errors element.
  64         bool mderror = dynamic_cast<const opensaml::saml2md::MetadataException*>(tp.getRichException())!=nullptr;
  65         bool accesserror = (strcmp(page, "access")==0);
  66         pair<bool,const char*> redirectErrors = pair<bool,const char*>(false,nullptr);
  67         pair<bool,const char*> pathname = pair<bool,const char*>(false,nullptr);
  68
  69         // Strictly for error handling, detect a nullptr application and point at the default.
  70         if (!app)
  71             app = request.getServiceProvider().getApplication(nullptr);
  72
  73         const PropertySet* props=app->getPropertySet("Errors");
  74
  75         // First look for settings in the request map of the form pageError.
  76         try {
  77             RequestMapper::Settings settings = request.getRequestSettings();
  78             if (mderror)
  79                 pathname = settings.first->getString("metadataError");
  80             if (!pathname.first) {
  81                 string pagename(page);
  82                 pagename += "Error";
  83                 pathname = settings.first->getString(pagename.c_str());
  84             }
  85             if (mayRedirect)
  86                 redirectErrors = settings.first->getString("redirectErrors");
  87         }
  88         catch (exception& ex) {
  89             log.error(ex.what());
  90         }
  91
  92         // Check for redirection on errors instead of template.
  93         if (mayRedirect) {
  94             if (!redirectErrors.first && props)
  95                 redirectErrors = props->getString("redirectErrors");
  96             if (redirectErrors.first) {
  97                 string loc(redirectErrors.second);
  98                 request.absolutize(loc);
  99                 loc = loc + '?' + tp.toQueryString();
 100                 return request.sendRedirect(loc.c_str());
 101             }
 102         }
 103
 104         request.setContentType("text/html");
 105         request.setResponseHeader("Expires","Wed, 01 Jan 1997 12:00:00 GMT");
 106         request.setResponseHeader("Cache-Control","private,no-store,no-cache,max-age=0");
 107
 108         // Nothing in the request map, so check for a property named "page" in the Errors property set.
 109         if (!pathname.first && props) {
 110             if (mderror)
 111                 pathname=props->getString("metadata");
 112             if (!pathname.first)
 113                 pathname=props->getString(page);
 114         }
 115
 116         // If there's still no template to use, just use pageError.html unless it's an access issue.
 117         string fname;
 118         if (!pathname.first) {
 119             if (!accesserror) {
 120                 fname = string(page) + "Error.html";
 121                 pathname.second = fname.c_str();
 122             }
 123         }
 124         else {
 125             fname = pathname.second;
 126         }
 127
 128         // If we have a template to use, use it.
 129         if (!fname.empty()) {
 130             ifstream infile(XMLToolingConfig::getConfig().getPathResolver()->resolve(fname, PathResolver::XMLTOOLING_CFG_FILE).c_str());
 131             if (infile) {
 132                 tp.setPropertySet(props);
 133                 stringstream str;
 134                 XMLToolingConfig::getConfig().getTemplateEngine()->run(infile, str, tp, tp.getRichException());
 135                 return request.sendError(str);
 136             }
 137         }
 138
 139         // If we got here, then either it's an access error or a template failed.
 140         if (accesserror) {
 141             istringstream msg("Access Denied");
 142             return request.sendResponse(msg, HTTPResponse::XMLTOOLING_HTTP_STATUS_FORBIDDEN);
 143         }
 144
 145         log.error("sendError could not process error template (%s)", pathname.second);
 146         istringstream msg("Internal Server Error. Please contact the site administrator.");
 147         return request.sendError(msg);
 148     }
 149
 150     void SHIBSP_DLLLOCAL clearHeaders(SPRequest& request) {
 151         const Application& app = request.getApplication();
 152         app.clearHeader(request, "Shib-Cookie-Name", "HTTP_SHIB_COOKIE_NAME");
 153         app.clearHeader(request, "Shib-Session-ID", "HTTP_SHIB_SESSION_ID");
 154         app.clearHeader(request, "Shib-Session-Index", "HTTP_SHIB_SESSION_INDEX");
 155         app.clearHeader(request, "Shib-Identity-Provider", "HTTP_SHIB_IDENTITY_PROVIDER");
 156         app.clearHeader(request, "Shib-Authentication-Method", "HTTP_SHIB_AUTHENTICATION_METHOD");
 157         app.clearHeader(request, "Shib-Authentication-Instant", "HTTP_SHIB_AUTHENTICATION_INSTANT");
 158         app.clearHeader(request, "Shib-AuthnContext-Class", "HTTP_SHIB_AUTHNCONTEXT_CLASS");
 159         app.clearHeader(request, "Shib-AuthnContext-Decl", "HTTP_SHIB_AUTHNCONTEXT_DECL");
 160         app.clearHeader(request, "Shib-Assertion-Count", "HTTP_SHIB_ASSERTION_COUNT");
 161         app.clearAttributeHeaders(request);
 162         request.clearHeader("REMOTE_USER", "HTTP_REMOTE_USER");
 163     }
 164 };
 165
 166 void SHIBSP_API shibsp::registerServiceProviders()
 167 {
 168     SPConfig::getConfig().ServiceProviderManager.registerFactory(XML_SERVICE_PROVIDER, XMLServiceProviderFactory);
 169 }
 170
 171 ServiceProvider::ServiceProvider()
 172 {
 173     m_authTypes.insert("shibboleth");
 174 }
 175
 176 ServiceProvider::~ServiceProvider()
 177 {
 178 }
 179
 180 #ifndef SHIBSP_LITE
 181 SecurityPolicyProvider* ServiceProvider::getSecurityPolicyProvider(bool required) const
 182 {
 183     if (required)
 184         throw ConfigurationException("No SecurityPolicyProvider available.");
 185     return nullptr;
 186 }
 187 #endif
 188
 189 Remoted* ServiceProvider::regListener(const char* address, Remoted* listener)
 190 {
 191     Remoted* ret = nullptr;
 192     map<string,Remoted*>::const_iterator i = m_listenerMap.find(address);
 193     if (i != m_listenerMap.end())
 194         ret = i->second;
 195     m_listenerMap[address] = listener;
 196     Category::getInstance(SHIBSP_LOGCAT".ServiceProvider").info("registered remoted message endpoint (%s)",address);
 197     return ret;
 198 }
 199
 200 bool ServiceProvider::unregListener(const char* address, Remoted* current, Remoted* restore)
 201 {
 202     map<string,Remoted*>::const_iterator i = m_listenerMap.find(address);
 203     if (i != m_listenerMap.end() && i->second == current) {
 204         if (restore)
 205             m_listenerMap[address] = restore;
 206         else
 207             m_listenerMap.erase(address);
 208         Category::getInstance(SHIBSP_LOGCAT".ServiceProvider").info("unregistered remoted message endpoint (%s)",address);
 209         return true;
 210     }
 211     return false;
 212 }
 213
 214 Remoted* ServiceProvider::lookupListener(const char *address) const
 215 {
 216     map<string,Remoted*>::const_iterator i = m_listenerMap.find(address);
 217     return (i == m_listenerMap.end()) ? nullptr : i->second;
 218 }
 219
 220 pair<bool,long> ServiceProvider::doAuthentication(SPRequest& request, bool handler) const
 221 {
 222 #ifdef _DEBUG
 223     xmltooling::NDC ndc("doAuthentication");
 224 #endif
 225     Category& log = Category::getInstance(SHIBSP_LOGCAT".ServiceProvider");
 226
 227     const Application* app = nullptr;
 228     string targetURL = request.getRequestURL();
 229
 230     try {
 231         RequestMapper::Settings settings = request.getRequestSettings();
 232         app = &(request.getApplication());
 233
 234         // If not SSL, check to see if we should block or redirect it.
 235         if (!request.isSecure()) {
 236             pair<bool,const char*> redirectToSSL = settings.first->getString("redirectToSSL");
 237             if (redirectToSSL.first) {
 238 #ifdef HAVE_STRCASECMP
 239                 if (!strcasecmp("GET",request.getMethod()) || !strcasecmp("HEAD",request.getMethod())) {
 240 #else
 241                 if (!stricmp("GET",request.getMethod()) || !stricmp("HEAD",request.getMethod())) {
 242 #endif
 243                     // Compute the new target URL
 244                     string redirectURL = string("https://") + request.getHostname();
 245                     if (strcmp(redirectToSSL.second,"443")) {
 246                         redirectURL = redirectURL + ':' + redirectToSSL.second;
 247                     }
 248                     redirectURL += request.getRequestURI();
 249                     return make_pair(true, request.sendRedirect(redirectURL.c_str()));
 250                 }
 251                 else {
 252                     TemplateParameters tp;
 253                     tp.m_map["requestURL"] = targetURL.substr(0,targetURL.find('?'));
 254                     return make_pair(true, sendError(log, request, app, "ssl", tp, false));
 255                 }
 256             }
 257         }
 258
 259         const char* handlerURL=request.getHandlerURL(targetURL.c_str());
 260         if (!handlerURL)
 261             throw ConfigurationException("Cannot determine handler from resource URL, check configuration.");
 262
 263         // If the request URL contains the handler base URL for this application, either dispatch
 264         // directly (mainly Apache 2.0) or just pass back control.
 265         if (boost::contains(targetURL, handlerURL)) {
 266             if (handler)
 267                 return doHandler(request);
 268             else
 269                 return make_pair(true, request.returnOK());
 270         }
 271
 272         // These settings dictate how to proceed.
 273         pair<bool,const char*> authType = settings.first->getString("authType");
 274         pair<bool,bool> requireSession = settings.first->getBool("requireSession");
 275         pair<bool,const char*> requireSessionWith = settings.first->getString("requireSessionWith");
 276         pair<bool,const char*> requireLogoutWith = settings.first->getString("requireLogoutWith");
 277
 278         // If no session is required AND the AuthType (an Apache-derived concept) isn't recognized,
 279         // then we ignore this request and consider it unprotected. Apache might lie to us if
 280         // ShibBasicHijack is on, but that's up to it.
 281         if ((!requireSession.first || !requireSession.second) && !requireSessionWith.first &&
 282                 (!authType.first || m_authTypes.find(boost::to_lower_copy(string(authType.second))) == m_authTypes.end()))
 283             return make_pair(true, request.returnDecline());
 284
 285         // Fix for secadv 20050901
 286         clearHeaders(request);
 287
 288         Session* session = nullptr;
 289         try {
 290             session = request.getSession(true, false, false);   // don't cache it
 291         }
 292         catch (exception& e) {
 293             log.warn("error during session lookup: %s", e.what());
 294             // If it's not a retryable session failure, we throw to the outer handler for reporting.
 295             if (dynamic_cast<opensaml::RetryableProfileException*>(&e) == nullptr)
 296                 throw;
 297         }
 298
 299         Locker slocker(session, false); // pop existing lock on exit
 300         if (session) {
 301             // Check for logout interception.
 302             if (requireLogoutWith.first) {
 303                 // Check for a completion parameter on the query string.
 304                 const char* qstr = request.getQueryString();
 305                 if (!qstr || !strstr(qstr, "shiblogoutdone=1")) {
 306                     // First leg of circuit, so we redirect to the logout endpoint specified with this URL as a return location.
 307                     string selfurl = request.getRequestURL();
 308                     if (!qstr)
 309                         selfurl += '?';
 310                     selfurl += "shiblogoutdone=1";
 311                     string loc = requireLogoutWith.second;
 312                     request.absolutize(loc);
 313                     if (loc.find('?') != string::npos)
 314                         loc += '&';
 315                     else
 316                         loc += '?';
 317                     loc += "return=" + XMLToolingConfig::getConfig().getURLEncoder()->encode(selfurl.c_str());
 318                     return make_pair(true, request.sendRedirect(loc.c_str()));
 319                 }
 320             }
 321         }
 322         else {
 323             // No session.  Maybe that's acceptable?
 324             if ((!requireSession.first || !requireSession.second) && !requireSessionWith.first)
 325                 return make_pair(true, request.returnOK());
 326
 327             // No session, but we require one. Initiate a new session using the indicated method.
 328             const SessionInitiator* initiator=nullptr;
 329             if (requireSessionWith.first) {
 330                 initiator=app->getSessionInitiatorById(requireSessionWith.second);
 331                 if (!initiator) {
 332                     throw ConfigurationException(
 333                         "No session initiator found with id ($1), check requireSessionWith command.", params(1, requireSessionWith.second)
 334                         );
 335                 }
 336             }
 337             else {
 338                 initiator=app->getDefaultSessionInitiator();
 339                 if (!initiator)
 340                     throw ConfigurationException("No default session initiator found, check configuration.");
 341             }
 342
 343             // Dispatch to SessionInitiator. This MUST handle the request, or we want to fail here.
 344             // Used to fall through into doExport, but this is a cleaner exit path.
 345             pair<bool,long> ret = initiator->run(request, false);
 346             if (ret.first)
 347                 return ret;
 348             throw ConfigurationException("Session initiator did not handle request for a new session, check configuration.");
 349         }
 350
 351         request.setAuthType(authType.second);
 352
 353         // We're done.  Everything is okay.  Nothing to report.  Nothing to do..
 354         // Let the caller decide how to proceed.
 355         log.debug("doAuthentication succeeded");
 356         return make_pair(false,0L);
 357     }
 358     catch (exception& e) {
 359         request.log(SPRequest::SPError, e.what());
 360         TemplateParameters tp(&e);
 361         tp.m_map["requestURL"] = targetURL.substr(0,targetURL.find('?'));
 362         return make_pair(true, sendError(log, request, app, "session", tp));
 363     }
 364 }
 365
 366 pair<bool,long> ServiceProvider::doAuthorization(SPRequest& request) const
 367 {
 368 #ifdef _DEBUG
 369     xmltooling::NDC ndc("doAuthorization");
 370 #endif
 371     Category& log = Category::getInstance(SHIBSP_LOGCAT".ServiceProvider");
 372
 373     const Application* app = nullptr;
 374     Session* session = nullptr;
 375     Locker slocker;
 376     string targetURL = request.getRequestURL();
 377
 378     try {
 379         RequestMapper::Settings settings = request.getRequestSettings();
 380         app = &(request.getApplication());
 381
 382         // Three settings dictate how to proceed.
 383         pair<bool,const char*> authType = settings.first->getString("authType");
 384         pair<bool,bool> requireSession = settings.first->getBool("requireSession");
 385         pair<bool,const char*> requireSessionWith = settings.first->getString("requireSessionWith");
 386
 387         // If no session is required AND the AuthType (an Apache-derived concept) isn't recognized,
 388         // then we ignore this request and consider it unprotected. Apache might lie to us if
 389         // ShibBasicHijack is on, but that's up to it.
 390         if ((!requireSession.first || !requireSession.second) && !requireSessionWith.first &&
 391                 (!authType.first || m_authTypes.find(boost::to_lower_copy(string(authType.second))) == m_authTypes.end()))
 392             return make_pair(true, request.returnDecline());
 393
 394         // Do we have an access control plugin?
 395         if (settings.second) {
 396             try {
 397                 session = request.getSession(false, false, false);  // ignore timeout and do not cache
 398                 if (session)
 399                     slocker.assign(session, false); // assign to lock popper
 400             }
 401             catch (exception& e) {
 402                 log.warn("unable to obtain session to pass to access control provider: %s", e.what());
 403             }
 404
 405             Locker acllock(settings.second);
 406             switch (settings.second->authorized(request, session)) {
 407                 case AccessControl::shib_acl_true:
 408                     log.debug("access control provider granted access");
 409                     return make_pair(true, request.returnOK());
 410
 411                 case AccessControl::shib_acl_false:
 412                 {
 413                     log.warn("access control provider denied access");
 414                     TemplateParameters tp(nullptr, nullptr, session);
 415                     tp.m_map["requestURL"] = targetURL;
 416                     return make_pair(true, sendError(log, request, app, "access", tp, false));
 417                 }
 418
 419                 default:
 420                     // Use the "DECLINE" interface to signal we don't know what to do.
 421                     return make_pair(true, request.returnDecline());
 422             }
 423         }
 424         else {
 425             return make_pair(true, request.returnDecline());
 426         }
 427     }
 428     catch (exception& e) {
 429         request.log(SPRequest::SPError, e.what());
 430         TemplateParameters tp(&e, nullptr, session);
 431         tp.m_map["requestURL"] = targetURL.substr(0,targetURL.find('?'));
 432         return make_pair(true, sendError(log, request, app, "access", tp));
 433     }
 434 }
 435
 436 pair<bool,long> ServiceProvider::doExport(SPRequest& request, bool requireSession) const
 437 {
 438 #ifdef _DEBUG
 439     xmltooling::NDC ndc("doExport");
 440 #endif
 441     Category& log = Category::getInstance(SHIBSP_LOGCAT".ServiceProvider");
 442
 443     const Application* app = nullptr;
 444     Session* session = nullptr;
 445     Locker slocker;
 446     string targetURL = request.getRequestURL();
 447
 448     try {
 449         RequestMapper::Settings settings = request.getRequestSettings();
 450         app = &(request.getApplication());
 451
 452         try {
 453             session = request.getSession(false, false, false);  // ignore timeout and do not cache
 454             if (session)
 455                 slocker.assign(session, false); // assign to lock popper
 456         }
 457         catch (exception& e) {
 458             log.warn("unable to obtain session to export to request: %s", e.what());
 459                 // If we have to have a session, then this is a fatal error.
 460                 if (requireSession)
 461                         throw;
 462         }
 463
 464                 // Still no data?
 465         if (!session) {
 466                 if (requireSession)
 467                 throw opensaml::RetryableProfileException("Unable to obtain session to export to request.");
 468                 else
 469                         return make_pair(false, 0L);    // just bail silently
 470         }
 471
 472                 pair<bool,const char*> enc = settings.first->getString("encoding");
 473                 if (enc.first && strcmp(enc.second, "URL"))
 474                         throw ConfigurationException("Unsupported value for 'encoding' content setting ($1).", params(1,enc.second));
 475
 476         const URLEncoder* encoder = XMLToolingConfig::getConfig().getURLEncoder();
 477
 478         app->setHeader(request, "Shib-Application-ID", app->getId());
 479         app->setHeader(request, "Shib-Session-ID", session->getID());
 480
 481         // Check for export of "standard" variables.
 482         // A 3.0 release would switch this default to false and rely solely on the
 483         // Assertion extractor plugin and ship out of the box with the same defaults.
 484         pair<bool,bool> stdvars = settings.first->getBool("exportStdVars");
 485         if (!stdvars.first || stdvars.second) {
 486             const char* hval = session->getEntityID();
 487             if (hval)
 488                 app->setHeader(request, "Shib-Identity-Provider", hval);
 489             hval = session->getAuthnInstant();
 490             if (hval)
 491                 app->setHeader(request, "Shib-Authentication-Instant", hval);
 492             hval = session->getAuthnContextClassRef();
 493             if (hval) {
 494                 app->setHeader(request, "Shib-Authentication-Method", hval);
 495                 app->setHeader(request, "Shib-AuthnContext-Class", hval);
 496             }
 497             hval = session->getAuthnContextDeclRef();
 498             if (hval)
 499                 app->setHeader(request, "Shib-AuthnContext-Decl", hval);
 500             hval = session->getSessionIndex();
 501             if (hval)
 502                 app->setHeader(request, "Shib-Session-Index", hval);
 503         }
 504
 505         // Check for export of algorithmically-derived portion of cookie names.
 506         stdvars = settings.first->getBool("exportCookie");
 507         if (stdvars.first && stdvars.second) {
 508             pair<string,const char*> cookieprops = app->getCookieNameProps(nullptr);
 509             app->setHeader(request, "Shib-Cookie-Name", cookieprops.first.c_str());
 510         }
 511
 512         // Maybe export the assertion keys.
 513         pair<bool,bool> exp = settings.first->getBool("exportAssertion");
 514         if (exp.first && exp.second) {
 515             const PropertySet* sessions = app->getPropertySet("Sessions");
 516             pair<bool,const char*> exportLocation = sessions ? sessions->getString("exportLocation") : pair<bool,const char*>(false,nullptr);
 517             if (!exportLocation.first)
 518                 log.warn("can't export assertions without an exportLocation Sessions property");
 519             else {
 520                 string exportName = "Shib-Assertion-00";
 521                 string baseURL;
 522                 if (!strncmp(exportLocation.second, "http", 4))
 523                     baseURL = exportLocation.second;
 524                 else
 525                     baseURL = string(request.getHandlerURL(targetURL.c_str())) + exportLocation.second;
 526                 baseURL = baseURL + "?key=" + session->getID() + "&ID=";
 527                 const vector<const char*>& tokens = session->getAssertionIDs();
 528                 vector<const char*>::size_type count = 0;
 529                 for (vector<const char*>::const_iterator tokenids = tokens.begin(); tokenids!=tokens.end(); ++tokenids) {
 530                     count++;
 531                     *(exportName.rbegin()) = '0' + (count%10);
 532                     *(++exportName.rbegin()) = '0' + (count/10);
 533                     string fullURL = baseURL + encoder->encode(*tokenids);
 534                     app->setHeader(request, exportName.c_str(), fullURL.c_str());
 535                 }
 536                 app->setHeader(request, "Shib-Assertion-Count", exportName.c_str() + 15);
 537             }
 538         }
 539
 540         // Export the attributes.
 541         const multimap<string,const Attribute*>& attributes = session->getIndexedAttributes();
 542         for (multimap<string,const Attribute*>::const_iterator a = attributes.begin(); a != attributes.end(); ++a) {
 543             if (a->second->isInternal())
 544                 continue;
 545             string header(app->getSecureHeader(request, a->first.c_str()));
 546             const vector<string>& vals = a->second->getSerializedValues();
 547             for (vector<string>::const_iterator v = vals.begin(); v != vals.end(); ++v) {
 548                 if (!header.empty())
 549                     header += ";";
 550                                 if (enc.first) {
 551                                         // If URL-encoding, any semicolons will get escaped anyway.
 552                                         header += encoder->encode(v->c_str());
 553                                 }
 554                                 else {
 555                                         string::size_type pos = v->find_first_of(';', string::size_type(0));
 556                                         if (pos != string::npos) {
 557                                                 string value(*v);
 558                                                 for (; pos != string::npos; pos = value.find_first_of(';', pos)) {
 559                                                         value.insert(pos, "\\");
 560                                                         pos += 2;
 561                                                 }
 562                                                 header += value;
 563                                         }
 564                                         else {
 565                                                 header += (*v);
 566                                         }
 567                                 }
 568             }
 569             app->setHeader(request, a->first.c_str(), header.c_str());
 570         }
 571
 572         // Check for REMOTE_USER.
 573         bool remoteUserSet = false;
 574         const vector<string>& rmids = app->getRemoteUserAttributeIds();
 575         for (vector<string>::const_iterator rmid = rmids.begin(); !remoteUserSet && rmid != rmids.end(); ++rmid) {
 576             pair<multimap<string,const Attribute*>::const_iterator,multimap<string,const Attribute*>::const_iterator> matches =
 577                 attributes.equal_range(*rmid);
 578             for (; matches.first != matches.second; ++matches.first) {
 579                 const vector<string>& vals = matches.first->second->getSerializedValues();
 580                 if (!vals.empty()) {
 581                                         if (enc.first)
 582                                                 request.setRemoteUser(encoder->encode(vals.front().c_str()).c_str());
 583                                         else
 584                                                 request.setRemoteUser(vals.front().c_str());
 585                     remoteUserSet = true;
 586                     break;
 587                 }
 588             }
 589         }
 590
 591         return make_pair(false,0L);
 592     }
 593     catch (exception& e) {
 594         request.log(SPRequest::SPError, e.what());
 595         TemplateParameters tp(&e, nullptr, session);
 596         tp.m_map["requestURL"] = targetURL.substr(0,targetURL.find('?'));
 597         return make_pair(true, sendError(log, request, app, "session", tp));
 598     }
 599 }
 600
 601 pair<bool,long> ServiceProvider::doHandler(SPRequest& request) const
 602 {
 603 #ifdef _DEBUG
 604     xmltooling::NDC ndc("doHandler");
 605 #endif
 606     Category& log = Category::getInstance(SHIBSP_LOGCAT".ServiceProvider");
 607
 608     const Application* app = nullptr;
 609     string targetURL = request.getRequestURL();
 610
 611     try {
 612         RequestMapper::Settings settings = request.getRequestSettings();
 613         app = &(request.getApplication());
 614
 615         // If not SSL, check to see if we should block or redirect it.
 616         if (!request.isSecure()) {
 617             pair<bool,const char*> redirectToSSL = settings.first->getString("redirectToSSL");
 618             if (redirectToSSL.first) {
 619 #ifdef HAVE_STRCASECMP
 620                 if (!strcasecmp("GET",request.getMethod()) || !strcasecmp("HEAD",request.getMethod())) {
 621 #else
 622                 if (!stricmp("GET",request.getMethod()) || !stricmp("HEAD",request.getMethod())) {
 623 #endif
 624                     // Compute the new target URL
 625                     string redirectURL = string("https://") + request.getHostname();
 626                     if (strcmp(redirectToSSL.second,"443")) {
 627                         redirectURL = redirectURL + ':' + redirectToSSL.second;
 628                     }
 629                     redirectURL += request.getRequestURI();
 630                     return make_pair(true, request.sendRedirect(redirectURL.c_str()));
 631                 }
 632                 else {
 633                     TemplateParameters tp;
 634                     tp.m_map["requestURL"] = targetURL.substr(0,targetURL.find('?'));
 635                     return make_pair(true,sendError(log, request, app, "ssl", tp, false));
 636                 }
 637             }
 638         }
 639
 640         const char* handlerURL = request.getHandlerURL(targetURL.c_str());
 641         if (!handlerURL)
 642             throw ConfigurationException("Cannot determine handler from resource URL, check configuration.");
 643
 644         // Make sure we only process handler requests.
 645         if (!boost::contains(targetURL, handlerURL))
 646             return make_pair(true, request.returnDecline());
 647
 648         const PropertySet* sessionProps = app->getPropertySet("Sessions");
 649         if (!sessionProps)
 650             throw ConfigurationException("Unable to map request to application session settings, check configuration.");
 651
 652         // Process incoming request.
 653         pair<bool,bool> handlerSSL = sessionProps->getBool("handlerSSL");
 654
 655         // Make sure this is SSL, if it should be
 656         if ((!handlerSSL.first || handlerSSL.second) && !request.isSecure())
 657             throw opensaml::FatalProfileException("Blocked non-SSL access to Shibboleth handler.");
 658
 659         // We dispatch based on our path info. We know the request URL begins with or equals the handler URL,
 660         // so the path info is the next character (or null).
 661         const Handler* handler = app->getHandler(targetURL.c_str() + strlen(handlerURL));
 662         if (!handler)
 663             throw ConfigurationException("Shibboleth handler invoked at an unconfigured location.");
 664
 665         pair<bool,long> hret = handler->run(request);
 666
 667         // Did the handler run successfully?
 668         if (hret.first)
 669             return hret;
 670
 671         throw ConfigurationException("Configured Shibboleth handler failed to process the request.");
 672     }
 673     catch (exception& e) {
 674         request.log(SPRequest::SPError, e.what());
 675         Session* session = nullptr;
 676         try {
 677             session = request.getSession(false, true, false);   // do not cache
 678         }
 679         catch (exception&) {
 680         }
 681         Locker slocker(session, false); // pop existing lock on exit
 682         TemplateParameters tp(&e, nullptr, session);
 683         tp.m_map["requestURL"] = targetURL.substr(0, targetURL.find('?'));
 684         tp.m_request = &request;
 685         return make_pair(true, sendError(log, request, app, "session", tp));
 686     }
 687 }