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                     else
 311                         selfurl += '?';
 312                     selfurl += "shiblogoutdone=1";
 313                     string loc = requireLogoutWith.second;
 314                     request.absolutize(loc);
 315                     if (loc.find('?') != string::npos)
 316                         loc += '&';
 317                     else
 318                         loc += '?';
 319                     loc += "return=" + XMLToolingConfig::getConfig().getURLEncoder()->encode(selfurl.c_str());
 320                     return make_pair(true, request.sendRedirect(loc.c_str()));
 321                 }
 322             }
 323         }
 324         else {
 325             // No session.  Maybe that's acceptable?
 326             if ((!requireSession.first || !requireSession.second) && !requireSessionWith.first)
 327                 return make_pair(true, request.returnOK());
 328
 329             // No session, but we require one. Initiate a new session using the indicated method.
 330             const SessionInitiator* initiator=nullptr;
 331             if (requireSessionWith.first) {
 332                 initiator=app->getSessionInitiatorById(requireSessionWith.second);
 333                 if (!initiator) {
 334                     throw ConfigurationException(
 335                         "No session initiator found with id ($1), check requireSessionWith command.", params(1, requireSessionWith.second)
 336                         );
 337                 }
 338             }
 339             else {
 340                 initiator=app->getDefaultSessionInitiator();
 341                 if (!initiator)
 342                     throw ConfigurationException("No default session initiator found, check configuration.");
 343             }
 344
 345             // Dispatch to SessionInitiator. This MUST handle the request, or we want to fail here.
 346             // Used to fall through into doExport, but this is a cleaner exit path.
 347             pair<bool,long> ret = initiator->run(request, false);
 348             if (ret.first)
 349                 return ret;
 350             throw ConfigurationException("Session initiator did not handle request for a new session, check configuration.");
 351         }
 352
 353         request.setAuthType(authType.second);
 354
 355         // We're done.  Everything is okay.  Nothing to report.  Nothing to do..
 356         // Let the caller decide how to proceed.
 357         log.debug("doAuthentication succeeded");
 358         return make_pair(false,0L);
 359     }
 360     catch (exception& e) {
 361         request.log(SPRequest::SPError, e.what());
 362         TemplateParameters tp(&e);
 363         tp.m_map["requestURL"] = targetURL.substr(0,targetURL.find('?'));
 364         return make_pair(true, sendError(log, request, app, "session", tp));
 365     }
 366 }
 367
 368 pair<bool,long> ServiceProvider::doAuthorization(SPRequest& request) const
 369 {
 370 #ifdef _DEBUG
 371     xmltooling::NDC ndc("doAuthorization");
 372 #endif
 373     Category& log = Category::getInstance(SHIBSP_LOGCAT ".ServiceProvider");
 374
 375     const Application* app = nullptr;
 376     Session* session = nullptr;
 377     Locker slocker;
 378     string targetURL = request.getRequestURL();
 379
 380     try {
 381         RequestMapper::Settings settings = request.getRequestSettings();
 382         app = &(request.getApplication());
 383
 384         // Three settings dictate how to proceed.
 385         pair<bool,const char*> authType = settings.first->getString("authType");
 386         pair<bool,bool> requireSession = settings.first->getBool("requireSession");
 387         pair<bool,const char*> requireSessionWith = settings.first->getString("requireSessionWith");
 388
 389         // If no session is required AND the AuthType (an Apache-derived concept) isn't recognized,
 390         // then we ignore this request and consider it unprotected. Apache might lie to us if
 391         // ShibBasicHijack is on, but that's up to it.
 392         if ((!requireSession.first || !requireSession.second) && !requireSessionWith.first &&
 393                 (!authType.first || m_authTypes.find(boost::to_lower_copy(string(authType.second))) == m_authTypes.end()))
 394             return make_pair(true, request.returnDecline());
 395
 396         // Do we have an access control plugin?
 397         if (settings.second) {
 398             try {
 399                 session = request.getSession(false, false, false);  // ignore timeout and do not cache
 400                 if (session)
 401                     slocker.assign(session, false); // assign to lock popper
 402             }
 403             catch (exception& e) {
 404                 log.warn("unable to obtain session to pass to access control provider: %s", e.what());
 405             }
 406
 407             Locker acllock(settings.second);
 408             switch (settings.second->authorized(request, session)) {
 409                 case AccessControl::shib_acl_true:
 410                     log.debug("access control provider granted access");
 411                     return make_pair(true, request.returnOK());
 412
 413                 case AccessControl::shib_acl_false:
 414                 {
 415                     log.warn("access control provider denied access");
 416                     TemplateParameters tp(nullptr, nullptr, session);
 417                     tp.m_map["requestURL"] = targetURL;
 418                     return make_pair(true, sendError(log, request, app, "access", tp, false));
 419                 }
 420
 421                 default:
 422                     // Use the "DECLINE" interface to signal we don't know what to do.
 423                     return make_pair(true, request.returnDecline());
 424             }
 425         }
 426         else {
 427             return make_pair(true, request.returnDecline());
 428         }
 429     }
 430     catch (exception& e) {
 431         request.log(SPRequest::SPError, e.what());
 432         TemplateParameters tp(&e, nullptr, session);
 433         tp.m_map["requestURL"] = targetURL.substr(0,targetURL.find('?'));
 434         return make_pair(true, sendError(log, request, app, "access", tp));
 435     }
 436 }
 437
 438 pair<bool,long> ServiceProvider::doExport(SPRequest& request, bool requireSession) const
 439 {
 440 #ifdef _DEBUG
 441     xmltooling::NDC ndc("doExport");
 442 #endif
 443     Category& log = Category::getInstance(SHIBSP_LOGCAT ".ServiceProvider");
 444
 445     const Application* app = nullptr;
 446     Session* session = nullptr;
 447     Locker slocker;
 448     string targetURL = request.getRequestURL();
 449
 450     try {
 451         RequestMapper::Settings settings = request.getRequestSettings();
 452         app = &(request.getApplication());
 453
 454         try {
 455             session = request.getSession(false, false, false);  // ignore timeout and do not cache
 456             if (session)
 457                 slocker.assign(session, false); // assign to lock popper
 458         }
 459         catch (exception& e) {
 460             log.warn("unable to obtain session to export to request: %s", e.what());
 461                 // If we have to have a session, then this is a fatal error.
 462                 if (requireSession)
 463                         throw;
 464         }
 465
 466                 // Still no data?
 467         if (!session) {
 468                 if (requireSession)
 469                 throw opensaml::RetryableProfileException("Unable to obtain session to export to request.");
 470                 else
 471                         return make_pair(false, 0L);    // just bail silently
 472         }
 473
 474                 pair<bool,const char*> enc = settings.first->getString("encoding");
 475                 if (enc.first && strcmp(enc.second, "URL"))
 476                         throw ConfigurationException("Unsupported value for 'encoding' content setting ($1).", params(1,enc.second));
 477
 478         const URLEncoder* encoder = XMLToolingConfig::getConfig().getURLEncoder();
 479
 480         app->setHeader(request, "Shib-Application-ID", app->getId());
 481         app->setHeader(request, "Shib-Session-ID", session->getID());
 482
 483         // Check for export of "standard" variables.
 484         // A 3.0 release would switch this default to false and rely solely on the
 485         // Assertion extractor plugin and ship out of the box with the same defaults.
 486         pair<bool,bool> stdvars = settings.first->getBool("exportStdVars");
 487         if (!stdvars.first || stdvars.second) {
 488             const char* hval = session->getEntityID();
 489             if (hval)
 490                 app->setHeader(request, "Shib-Identity-Provider", hval);
 491             hval = session->getAuthnInstant();
 492             if (hval)
 493                 app->setHeader(request, "Shib-Authentication-Instant", hval);
 494             hval = session->getAuthnContextClassRef();
 495             if (hval) {
 496                 app->setHeader(request, "Shib-Authentication-Method", hval);
 497                 app->setHeader(request, "Shib-AuthnContext-Class", hval);
 498             }
 499             hval = session->getAuthnContextDeclRef();
 500             if (hval)
 501                 app->setHeader(request, "Shib-AuthnContext-Decl", hval);
 502             hval = session->getSessionIndex();
 503             if (hval)
 504                 app->setHeader(request, "Shib-Session-Index", hval);
 505         }
 506
 507         // Check for export of algorithmically-derived portion of cookie names.
 508         stdvars = settings.first->getBool("exportCookie");
 509         if (stdvars.first && stdvars.second) {
 510             pair<string,const char*> cookieprops = app->getCookieNameProps(nullptr);
 511             app->setHeader(request, "Shib-Cookie-Name", cookieprops.first.c_str());
 512         }
 513
 514         // Maybe export the assertion keys.
 515         pair<bool,bool> exp = settings.first->getBool("exportAssertion");
 516         if (exp.first && exp.second) {
 517             const PropertySet* sessions = app->getPropertySet("Sessions");
 518             pair<bool,const char*> exportLocation = sessions ? sessions->getString("exportLocation") : pair<bool,const char*>(false,nullptr);
 519             if (!exportLocation.first)
 520                 log.warn("can't export assertions without an exportLocation Sessions property");
 521             else {
 522                 string exportName = "Shib-Assertion-00";
 523                 string baseURL;
 524                 if (!strncmp(exportLocation.second, "http", 4))
 525                     baseURL = exportLocation.second;
 526                 else
 527                     baseURL = string(request.getHandlerURL(targetURL.c_str())) + exportLocation.second;
 528                 baseURL = baseURL + "?key=" + session->getID() + "&ID=";
 529                 const vector<const char*>& tokens = session->getAssertionIDs();
 530                 vector<const char*>::size_type count = 0;
 531                 for (vector<const char*>::const_iterator tokenids = tokens.begin(); tokenids!=tokens.end(); ++tokenids) {
 532                     count++;
 533                     *(exportName.rbegin()) = '0' + (count%10);
 534                     *(++exportName.rbegin()) = '0' + (count/10);
 535                     string fullURL = baseURL + encoder->encode(*tokenids);
 536                     app->setHeader(request, exportName.c_str(), fullURL.c_str());
 537                 }
 538                 app->setHeader(request, "Shib-Assertion-Count", exportName.c_str() + 15);
 539             }
 540         }
 541
 542         // Export the attributes.
 543         const multimap<string,const Attribute*>& attributes = session->getIndexedAttributes();
 544         for (multimap<string,const Attribute*>::const_iterator a = attributes.begin(); a != attributes.end(); ++a) {
 545             if (a->second->isInternal())
 546                 continue;
 547             string header(app->getSecureHeader(request, a->first.c_str()));
 548             const vector<string>& vals = a->second->getSerializedValues();
 549             for (vector<string>::const_iterator v = vals.begin(); v != vals.end(); ++v) {
 550                 if (!header.empty())
 551                     header += ";";
 552                                 if (enc.first) {
 553                                         // If URL-encoding, any semicolons will get escaped anyway.
 554                                         header += encoder->encode(v->c_str());
 555                                 }
 556                                 else {
 557                                         string::size_type pos = v->find_first_of(';', string::size_type(0));
 558                                         if (pos != string::npos) {
 559                                                 string value(*v);
 560                                                 for (; pos != string::npos; pos = value.find_first_of(';', pos)) {
 561                                                         value.insert(pos, "\\");
 562                                                         pos += 2;
 563                                                 }
 564                                                 header += value;
 565                                         }
 566                                         else {
 567                                                 header += (*v);
 568                                         }
 569                                 }
 570             }
 571             app->setHeader(request, a->first.c_str(), header.c_str());
 572         }
 573
 574         // Check for REMOTE_USER.
 575         bool remoteUserSet = false;
 576         const vector<string>& rmids = app->getRemoteUserAttributeIds();
 577         for (vector<string>::const_iterator rmid = rmids.begin(); !remoteUserSet && rmid != rmids.end(); ++rmid) {
 578             pair<multimap<string,const Attribute*>::const_iterator,multimap<string,const Attribute*>::const_iterator> matches =
 579                 attributes.equal_range(*rmid);
 580             for (; matches.first != matches.second; ++matches.first) {
 581                 const vector<string>& vals = matches.first->second->getSerializedValues();
 582                 if (!vals.empty()) {
 583                                         if (enc.first)
 584                                                 request.setRemoteUser(encoder->encode(vals.front().c_str()).c_str());
 585                                         else
 586                                                 request.setRemoteUser(vals.front().c_str());
 587                     remoteUserSet = true;
 588                     break;
 589                 }
 590             }
 591         }
 592
 593         return make_pair(false,0L);
 594     }
 595     catch (exception& e) {
 596         request.log(SPRequest::SPError, e.what());
 597         TemplateParameters tp(&e, nullptr, session);
 598         tp.m_map["requestURL"] = targetURL.substr(0,targetURL.find('?'));
 599         return make_pair(true, sendError(log, request, app, "session", tp));
 600     }
 601 }
 602
 603 pair<bool,long> ServiceProvider::doHandler(SPRequest& request) const
 604 {
 605 #ifdef _DEBUG
 606     xmltooling::NDC ndc("doHandler");
 607 #endif
 608     Category& log = Category::getInstance(SHIBSP_LOGCAT ".ServiceProvider");
 609
 610     const Application* app = nullptr;
 611     string targetURL = request.getRequestURL();
 612
 613     try {
 614         RequestMapper::Settings settings = request.getRequestSettings();
 615         app = &(request.getApplication());
 616
 617         // If not SSL, check to see if we should block or redirect it.
 618         if (!request.isSecure()) {
 619             pair<bool,const char*> redirectToSSL = settings.first->getString("redirectToSSL");
 620             if (redirectToSSL.first) {
 621 #ifdef HAVE_STRCASECMP
 622                 if (!strcasecmp("GET",request.getMethod()) || !strcasecmp("HEAD",request.getMethod())) {
 623 #else
 624                 if (!stricmp("GET",request.getMethod()) || !stricmp("HEAD",request.getMethod())) {
 625 #endif
 626                     // Compute the new target URL
 627                     string redirectURL = string("https://") + request.getHostname();
 628                     if (strcmp(redirectToSSL.second,"443")) {
 629                         redirectURL = redirectURL + ':' + redirectToSSL.second;
 630                     }
 631                     redirectURL += request.getRequestURI();
 632                     return make_pair(true, request.sendRedirect(redirectURL.c_str()));
 633                 }
 634                 else {
 635                     TemplateParameters tp;
 636                     tp.m_map["requestURL"] = targetURL.substr(0,targetURL.find('?'));
 637                     return make_pair(true,sendError(log, request, app, "ssl", tp, false));
 638                 }
 639             }
 640         }
 641
 642         const char* handlerURL = request.getHandlerURL(targetURL.c_str());
 643         if (!handlerURL)
 644             throw ConfigurationException("Cannot determine handler from resource URL, check configuration.");
 645
 646         // Make sure we only process handler requests.
 647         if (!boost::contains(targetURL, handlerURL))
 648             return make_pair(true, request.returnDecline());
 649
 650         const PropertySet* sessionProps = app->getPropertySet("Sessions");
 651         if (!sessionProps)
 652             throw ConfigurationException("Unable to map request to application session settings, check configuration.");
 653
 654         // Process incoming request.
 655         pair<bool,bool> handlerSSL = sessionProps->getBool("handlerSSL");
 656
 657         // Make sure this is SSL, if it should be
 658         if ((!handlerSSL.first || handlerSSL.second) && !request.isSecure())
 659             throw opensaml::FatalProfileException("Blocked non-SSL access to Shibboleth handler.");
 660
 661         // We dispatch based on our path info. We know the request URL begins with or equals the handler URL,
 662         // so the path info is the next character (or null).
 663         const Handler* handler = app->getHandler(targetURL.c_str() + strlen(handlerURL));
 664         if (!handler)
 665             throw ConfigurationException("Shibboleth handler invoked at an unconfigured location.");
 666
 667         pair<bool,long> hret = handler->run(request);
 668
 669         // Did the handler run successfully?
 670         if (hret.first)
 671             return hret;
 672
 673         throw ConfigurationException("Configured Shibboleth handler failed to process the request.");
 674     }
 675     catch (exception& e) {
 676         request.log(SPRequest::SPError, e.what());
 677         Session* session = nullptr;
 678         try {
 679             session = request.getSession(false, true, false);   // do not cache
 680         }
 681         catch (exception&) {
 682         }
 683         Locker slocker(session, false); // pop existing lock on exit
 684         TemplateParameters tp(&e, nullptr, session);
 685         tp.m_map["requestURL"] = targetURL.substr(0, targetURL.find('?'));
 686         tp.m_request = &request;
 687         return make_pair(true, sendError(log, request, app, "session", tp));
 688     }
 689 }