shib-target/shib-ini.cpp

   1 /*
   2  * The Shibboleth License, Version 1.
   3  * Copyright (c) 2002
   4  * University Corporation for Advanced Internet Development, Inc.
   5  * All rights reserved
   6  *
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions are met:
  10  *
  11  * Redistributions of source code must retain the above copyright notice, this
  12  * list of conditions and the following disclaimer.
  13  *
  14  * Redistributions in binary form must reproduce the above copyright notice,
  15  * this list of conditions and the following disclaimer in the documentation
  16  * and/or other materials provided with the distribution, if any, must include
  17  * the following acknowledgment: "This product includes software developed by
  18  * the University Corporation for Advanced Internet Development
  19  * <http://www.ucaid.edu>Internet2 Project. Alternately, this acknowledegement
  20  * may appear in the software itself, if and wherever such third-party
  21  * acknowledgments normally appear.
  22  *
  23  * Neither the name of Shibboleth nor the names of its contributors, nor
  24  * Internet2, nor the University Corporation for Advanced Internet Development,
  25  * Inc., nor UCAID may be used to endorse or promote products derived from this
  26  * software without specific prior written permission. For written permission,
  27  * please contact shibboleth@shibboleth.org
  28  *
  29  * Products derived from this software may not be called Shibboleth, Internet2,
  30  * UCAID, or the University Corporation for Advanced Internet Development, nor
  31  * may Shibboleth appear in their name, without prior written permission of the
  32  * University Corporation for Advanced Internet Development.
  33  *
  34  *
  35  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  36  * AND WITH ALL FAULTS. ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  37  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
  38  * PARTICULAR PURPOSE, AND NON-INFRINGEMENT ARE DISCLAIMED AND THE ENTIRE RISK
  39  * OF SATISFACTORY QUALITY, PERFORMANCE, ACCURACY, AND EFFORT IS WITH LICENSEE.
  40  * IN NO EVENT SHALL THE COPYRIGHT OWNER, CONTRIBUTORS OR THE UNIVERSITY
  41  * CORPORATION FOR ADVANCED INTERNET DEVELOPMENT, INC. BE LIABLE FOR ANY DIRECT,
  42  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  43  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  44  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  45  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  46  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  47  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  48  */
  49
  50 /*
  51  * shib-ini.h -- config file handling, now XML-based
  52  *
  53  * $Id$
  54  */
  55
  56 #include "internal.h"
  57
  58 #include <shib/shib-threads.h>
  59 #include <log4cpp/Category.hh>
  60 #include <log4cpp/PropertyConfigurator.hh>
  61
  62 #include <sys/types.h>
  63 #include <sys/stat.h>
  64
  65 using namespace std;
  66 using namespace saml;
  67 using namespace shibboleth;
  68 using namespace shibtarget;
  69 using namespace log4cpp;
  70
  71 namespace shibtarget {
  72
  73     // Application configuration wrapper
  74     class XMLApplication : public virtual IApplication, public XMLPropertySet, public DOMNodeFilter
  75     {
  76     public:
  77         XMLApplication(const DOMElement* e, const XMLApplication* base=NULL);
  78         ~XMLApplication();
  79
  80         // IPropertySet
  81         pair<bool,bool> getBool(const char* name, const char* ns=NULL) const;
  82         pair<bool,const char*> getString(const char* name, const char* ns=NULL) const;
  83         pair<bool,const XMLCh*> getXMLString(const char* name, const char* ns=NULL) const;
  84         pair<bool,unsigned int> getUnsignedInt(const char* name, const char* ns=NULL) const;
  85         pair<bool,int> getInt(const char* name, const char* ns=NULL) const;
  86         const IPropertySet* getPropertySet(const char* name, const char* ns="urn:mace:shibboleth:target:config:1.0") const;
  87
  88         // IApplication
  89         const char* getId() const {return getString("id").second;}
  90         Iterator<SAMLAttributeDesignator*> getAttributeDesignators() const;
  91         Iterator<IAAP*> getAAPProviders() const;
  92         Iterator<IMetadata*> getMetadataProviders() const;
  93         Iterator<ITrust*> getTrustProviders() const;
  94         Iterator<IRevocation*> getRevocationProviders() const;
  95         Iterator<const XMLCh*> getAudiences() const;
  96         const char* getTLSCred(const IProvider* provider) const {return getCredentialUse(provider).first.c_str();}
  97         const char* getSigningCred(const IProvider* provider) const {return getCredentialUse(provider).second.c_str();}
  98
  99         // Provides filter to exclude special config elements.
 100         short acceptNode(const DOMNode* node) const;
 101
 102     private:
 103         const XMLApplication* m_base;
 104         vector<SAMLAttributeDesignator*> m_designators;
 105         vector<IAAP*> m_aaps;
 106         vector<IMetadata*> m_metadatas;
 107         vector<ITrust*> m_trusts;
 108         vector<IRevocation*> m_revocations;
 109         vector<const XMLCh*> m_audiences;
 110         pair<string,string> m_credDefault;
 111 #ifdef HAVE_GOOD_STL
 112         map<xstring,pair<string,string> > m_credMap;
 113 #else
 114         map<const XMLCh*,pair<string,string> > m_credMap;
 115 #endif
 116         const pair<string,string>& getCredentialUse(const IProvider* provider) const;
 117     };
 118
 119     // Top-level configuration implementation
 120     class XMLConfig;
 121     class XMLConfigImpl : public ReloadableXMLFileImpl, public XMLPropertySet, public DOMNodeFilter
 122     {
 123     public:
 124         XMLConfigImpl(const char* pathname, bool first, const XMLConfig* outer)
 125             : ReloadableXMLFileImpl(pathname), m_outer(outer), m_requestMapper(NULL) { init(first); }
 126         XMLConfigImpl(const DOMElement* e, bool first, const XMLConfig* outer)
 127             : ReloadableXMLFileImpl(e), m_outer(outer), m_requestMapper(NULL) { init(first); }
 128         ~XMLConfigImpl();
 129
 130         IRequestMapper* m_requestMapper;
 131         map<string,IApplication*> m_appmap;
 132         vector<ICredentials*> m_creds;
 133
 134         // Provides filter to exclude special config elements.
 135         short acceptNode(const DOMNode* node) const;
 136
 137     private:
 138         void init(bool first);
 139         const XMLConfig* m_outer;
 140     };
 141
 142     class XMLConfig : public IConfig, public ReloadableXMLFile
 143     {
 144     public:
 145         XMLConfig(const DOMElement* e) : ReloadableXMLFile(e), m_listener(NULL), m_cache(NULL) {}
 146         ~XMLConfig() {delete m_listener; delete m_cache;}
 147
 148         // IPropertySet
 149         pair<bool,bool> getBool(const char* name, const char* ns=NULL) const {return static_cast<XMLConfigImpl*>(m_impl)->getBool(name,ns);}
 150         pair<bool,const char*> getString(const char* name, const char* ns=NULL) const {return static_cast<XMLConfigImpl*>(m_impl)->getString(name,ns);}
 151         pair<bool,const XMLCh*> getXMLString(const char* name, const char* ns=NULL) const {return static_cast<XMLConfigImpl*>(m_impl)->getXMLString(name,ns);}
 152         pair<bool,unsigned int> getUnsignedInt(const char* name, const char* ns=NULL) const {return static_cast<XMLConfigImpl*>(m_impl)->getUnsignedInt(name,ns);}
 153         pair<bool,int> getInt(const char* name, const char* ns=NULL) const {return static_cast<XMLConfigImpl*>(m_impl)->getInt(name,ns);}
 154         const IPropertySet* getPropertySet(const char* name, const char* ns="urn:mace:shibboleth:target:config:1.0") const {return static_cast<XMLConfigImpl*>(m_impl)->getPropertySet(name,ns);}
 155         const DOMElement* getElement() const {return static_cast<XMLConfigImpl*>(m_impl)->getElement();}
 156
 157         // IConfig
 158         const IListener* getListener() const {return m_listener;}
 159         ISessionCache* getSessionCache() const {return m_cache;}
 160         IRequestMapper* getRequestMapper() const {return static_cast<XMLConfigImpl*>(m_impl)->m_requestMapper;}
 161         const IApplication* getApplication(const char* applicationId) const
 162         {
 163             map<string,IApplication*>::const_iterator i=static_cast<XMLConfigImpl*>(m_impl)->m_appmap.find(applicationId);
 164             return (i!=static_cast<XMLConfigImpl*>(m_impl)->m_appmap.end()) ? i->second : NULL;
 165         }
 166         Iterator<ICredentials*> getCredentialsProviders() const {return static_cast<XMLConfigImpl*>(m_impl)->m_creds;}
 167
 168     protected:
 169         virtual ReloadableXMLFileImpl* newImplementation(const char* pathname, bool first=true) const;
 170         virtual ReloadableXMLFileImpl* newImplementation(const DOMElement* e, bool first=true) const;
 171
 172     private:
 173         friend class XMLConfigImpl;
 174         mutable IListener* m_listener;
 175         mutable ISessionCache* m_cache;
 176     };
 177 }
 178
 179 IConfig* STConfig::ShibTargetConfigFactory(const DOMElement* e)
 180 {
 181     XMLConfig* ret=new XMLConfig(e);
 182     try {
 183         ret->getImplementation();
 184     }
 185     catch (...) {
 186         delete ret;
 187         throw;
 188     }
 189     return ret;
 190 }
 191
 192 XMLPropertySet::~XMLPropertySet()
 193 {
 194     for (map<string,pair<char*,const XMLCh*> >::iterator i=m_map.begin(); i!=m_map.end(); i++)
 195         XMLString::release(&(i->second.first));
 196     for (map<string,IPropertySet*>::iterator j=m_nested.begin(); j!=m_nested.end(); j++)
 197         delete j->second;
 198 }
 199
 200 void XMLPropertySet::load(const DOMElement* e, Category& log, DOMNodeFilter* filter)
 201 {
 202     NDC ndc("load");
 203     m_root=e;
 204
 205     // Process each attribute as a property.
 206     DOMNamedNodeMap* attrs=m_root->getAttributes();
 207     for (XMLSize_t i=0; i<attrs->getLength(); i++) {
 208         DOMNode* a=attrs->item(i);
 209         if (!XMLString::compareString(a->getNamespaceURI(),saml::XML::XMLNS_NS))
 210             continue;
 211         char* val=XMLString::transcode(a->getNodeValue());
 212         if (val && *val) {
 213             auto_ptr_char ns(a->getNamespaceURI());
 214             auto_ptr_char name(a->getLocalName());
 215             if (ns.get()) {
 216                 m_map[string("{") + ns.get() + '}' + name.get()]=pair<char*,const XMLCh*>(val,a->getNodeValue());
 217                 log.debug("added property {%s}%s (%s)",ns.get(),name.get(),val);
 218             }
 219             else {
 220                 m_map[name.get()]=pair<char*,const XMLCh*>(val,a->getNodeValue());
 221                 log.debug("added property %s (%s)",name.get(),val);
 222             }
 223         }
 224     }
 225
 226     // Process non-excluded elements as nested sets.
 227     DOMTreeWalker* walker=
 228         static_cast<DOMDocumentTraversal*>(
 229             m_root->getOwnerDocument())->createTreeWalker(const_cast<DOMElement*>(m_root),DOMNodeFilter::SHOW_ELEMENT,filter,false
 230             );
 231     e=static_cast<DOMElement*>(walker->firstChild());
 232     while (e) {
 233         auto_ptr_char ns(e->getNamespaceURI());
 234         auto_ptr_char name(e->getLocalName());
 235         string key;
 236         if (ns.get())
 237             key=string("{") + ns.get() + '}' + name.get();
 238         else
 239             key=name.get();
 240         if (m_nested.find(key)!=m_nested.end())
 241             log.warn("load() skipping duplicate property set: %s",key.c_str());
 242         else {
 243             XMLPropertySet* set=new XMLPropertySet();
 244             set->load(e,log,filter);
 245             m_nested[key]=set;
 246             log.debug("added nested property set: %s",key.c_str());
 247         }
 248         e=static_cast<DOMElement*>(walker->nextSibling());
 249     }
 250     walker->release();
 251 }
 252
 253 pair<bool,bool> XMLPropertySet::getBool(const char* name, const char* ns) const
 254 {
 255     pair<bool,bool> ret=pair<bool,bool>(false,false);
 256     map<string,pair<char*,const XMLCh*> >::const_iterator i;
 257
 258     if (ns)
 259         i=m_map.find(string("{") + ns + '}' + name);
 260     else
 261         i=m_map.find(name);
 262
 263     if (i!=m_map.end()) {
 264         ret.first=true;
 265         ret.second=(!strcmp(i->second.first,"true") || !strcmp(i->second.first,"1"));
 266     }
 267     return ret;
 268 }
 269
 270 pair<bool,const char*> XMLPropertySet::getString(const char* name, const char* ns) const
 271 {
 272     pair<bool,const char*> ret=pair<bool,const char*>(false,NULL);
 273     map<string,pair<char*,const XMLCh*> >::const_iterator i;
 274
 275     if (ns)
 276         i=m_map.find(string("{") + ns + '}' + name);
 277     else
 278         i=m_map.find(name);
 279
 280     if (i!=m_map.end()) {
 281         ret.first=true;
 282         ret.second=i->second.first;
 283     }
 284     return ret;
 285 }
 286
 287 pair<bool,const XMLCh*> XMLPropertySet::getXMLString(const char* name, const char* ns) const
 288 {
 289     pair<bool,const XMLCh*> ret=pair<bool,const XMLCh*>(false,NULL);
 290     map<string,pair<char*,const XMLCh*> >::const_iterator i;
 291
 292     if (ns)
 293         i=m_map.find(string("{") + ns + '}' + name);
 294     else
 295         i=m_map.find(name);
 296
 297     if (i!=m_map.end()) {
 298         ret.first=true;
 299         ret.second=i->second.second;
 300     }
 301     return ret;
 302 }
 303
 304 pair<bool,unsigned int> XMLPropertySet::getUnsignedInt(const char* name, const char* ns) const
 305 {
 306     pair<bool,unsigned int> ret=pair<bool,unsigned int>(false,0);
 307     map<string,pair<char*,const XMLCh*> >::const_iterator i;
 308
 309     if (ns)
 310         i=m_map.find(string("{") + ns + '}' + name);
 311     else
 312         i=m_map.find(name);
 313
 314     if (i!=m_map.end()) {
 315         ret.first=true;
 316         ret.second=strtol(i->second.first,NULL,10);
 317     }
 318     return ret;
 319 }
 320
 321 pair<bool,int> XMLPropertySet::getInt(const char* name, const char* ns) const
 322 {
 323     pair<bool,int> ret=pair<bool,int>(false,0);
 324     map<string,pair<char*,const XMLCh*> >::const_iterator i;
 325
 326     if (ns)
 327         i=m_map.find(string("{") + ns + '}' + name);
 328     else
 329         i=m_map.find(name);
 330
 331     if (i!=m_map.end()) {
 332         ret.first=true;
 333         ret.second=atoi(i->second.first);
 334     }
 335     return ret;
 336 }
 337
 338 const IPropertySet* XMLPropertySet::getPropertySet(const char* name, const char* ns) const
 339 {
 340     map<string,IPropertySet*>::const_iterator i;
 341
 342     if (ns)
 343         i=m_nested.find(string("{") + ns + '}' + name);
 344     else
 345         i=m_nested.find(name);
 346
 347     return (i!=m_nested.end()) ? i->second : NULL;
 348 }
 349
 350 XMLApplication::XMLApplication(const DOMElement* e, const XMLApplication* base) : m_base(base)
 351 {
 352     NDC ndc("XMLApplication");
 353     Category& log=Category::getInstance("shibtarget.XMLApplication");
 354
 355     try {
 356         // First load any property sets.
 357         load(e,log,this);
 358
 359         ShibTargetConfig& conf=ShibTargetConfig::getConfig();
 360         ShibConfig& shibConf=ShibConfig::getConfig();
 361         int i;
 362         DOMNodeList* nlist=e->getElementsByTagNameNS(saml::XML::SAML_NS,L(AttributeDesignator));
 363         for (i=0; nlist && i<nlist->getLength(); i++) {
 364             m_designators.push_back(new SAMLAttributeDesignator(static_cast<DOMElement*>(nlist->item(i))));
 365         }
 366
 367         nlist=e->getElementsByTagNameNS(saml::XML::SAML_NS,L(Audience));
 368         for (i=0; nlist && i<nlist->getLength(); i++) {
 369             m_audiences.push_back(nlist->item(i)->getFirstChild()->getNodeValue());
 370         }
 371         // Always include our own providerId as an audience.
 372         m_audiences.push_back(getXMLString("providerId").second);
 373
 374         if (conf.isEnabled(ShibTargetConfig::AAP)) {
 375             nlist=e->getElementsByTagNameNS(ShibTargetConfig::SHIBTARGET_NS,SHIBT_L(AAPProvider));
 376             for (i=0; nlist && i<nlist->getLength(); i++) {
 377                 auto_ptr_char type(static_cast<DOMElement*>(nlist->item(i))->getAttributeNS(NULL,SHIBT_L(type)));
 378                 log.info("building AAP provider of type %s...",type.get());
 379                 IPlugIn* plugin=shibConf.m_plugMgr.newPlugin(type.get(),static_cast<DOMElement*>(nlist->item(i)));
 380                 IAAP* aap=dynamic_cast<IAAP*>(plugin);
 381                 if (aap)
 382                     m_aaps.push_back(aap);
 383                 else {
 384                     delete plugin;
 385                     log.fatal("plugin was not an AAP provider");
 386                     throw UnsupportedExtensionException("plugin was not an AAP provider");
 387                 }
 388             }
 389         }
 390
 391         if (conf.isEnabled(ShibTargetConfig::Metadata)) {
 392             nlist=e->getElementsByTagNameNS(ShibTargetConfig::SHIBTARGET_NS,SHIBT_L(FederationProvider));
 393             for (i=0; nlist && i<nlist->getLength(); i++) {
 394                 auto_ptr_char type(static_cast<DOMElement*>(nlist->item(i))->getAttributeNS(NULL,SHIBT_L(type)));
 395                 log.info("building federation/metadata provider of type %s...",type.get());
 396                 IPlugIn* plugin=shibConf.m_plugMgr.newPlugin(type.get(),static_cast<DOMElement*>(nlist->item(i)));
 397                 IMetadata* md=dynamic_cast<IMetadata*>(plugin);
 398                 if (md)
 399                     m_metadatas.push_back(md);
 400                 else {
 401                     delete plugin;
 402                     log.fatal("plugin was not a federation/metadata provider");
 403                     throw UnsupportedExtensionException("plugin was not a federation/metadata provider");
 404                 }
 405             }
 406         }
 407
 408         if (conf.isEnabled(ShibTargetConfig::Trust)) {
 409             nlist=e->getElementsByTagNameNS(ShibTargetConfig::SHIBTARGET_NS,SHIBT_L(TrustProvider));
 410             for (i=0; nlist && i<nlist->getLength(); i++) {
 411                 auto_ptr_char type(static_cast<DOMElement*>(nlist->item(i))->getAttributeNS(NULL,SHIBT_L(type)));
 412                 log.info("building trust provider of type %s...",type.get());
 413                 IPlugIn* plugin=shibConf.m_plugMgr.newPlugin(type.get(),static_cast<DOMElement*>(nlist->item(i)));
 414                 ITrust* trust=dynamic_cast<ITrust*>(plugin);
 415                 if (trust)
 416                     m_trusts.push_back(trust);
 417                 else {
 418                     delete plugin;
 419                     log.fatal("plugin was not a trust provider");
 420                     throw UnsupportedExtensionException("plugin was not a trust provider");
 421                 }
 422             }
 423             nlist=e->getElementsByTagNameNS(ShibTargetConfig::SHIBTARGET_NS,SHIBT_L(RevocationProvider));
 424             for (i=0; nlist && i<nlist->getLength(); i++) {
 425                 auto_ptr_char type(static_cast<DOMElement*>(nlist->item(i))->getAttributeNS(NULL,SHIBT_L(type)));
 426                 log.info("building revocation provider of type %s...",type.get());
 427                 IPlugIn* plugin=shibConf.m_plugMgr.newPlugin(type.get(),static_cast<DOMElement*>(nlist->item(i)));
 428                 IRevocation* rev=dynamic_cast<IRevocation*>(plugin);
 429                 if (rev)
 430                     m_revocations.push_back(rev);
 431                 else {
 432                     delete plugin;
 433                     log.fatal("plugin was not a revocation provider");
 434                     throw UnsupportedExtensionException("plugin was not a revocation provider");
 435                 }
 436             }
 437         }
 438
 439         // Finally, load credential mappings.
 440         const DOMElement* cu=saml::XML::getFirstChildElement(e,ShibTargetConfig::SHIBTARGET_NS,SHIBT_L(CredentialUse));
 441         if (cu) {
 442             auto_ptr_char TLS(cu->getAttributeNS(NULL,SHIBT_L(TLS)));
 443             auto_ptr_char Signing(cu->getAttributeNS(NULL,SHIBT_L(Signing)));
 444             m_credDefault.first=TLS.get();
 445             m_credDefault.second=Signing.get();
 446             cu=saml::XML::getFirstChildElement(cu,ShibTargetConfig::SHIBTARGET_NS,SHIBT_L(RelyingParty));
 447             while (cu) {
 448                 auto_ptr_char TLS2(cu->getAttributeNS(NULL,SHIBT_L(TLS)));
 449                 auto_ptr_char Signing2(cu->getAttributeNS(NULL,SHIBT_L(Signing)));
 450                 m_credMap[cu->getAttributeNS(NULL,SHIBT_L(Name))]=pair<string,string>(TLS2.get(),Signing2.get());
 451                 cu=saml::XML::getNextSiblingElement(cu,ShibTargetConfig::SHIBTARGET_NS,SHIBT_L(RelyingParty));
 452             }
 453         }
 454     }
 455     catch (...) {
 456         this->~XMLApplication();    // does this work?
 457         throw;
 458     }
 459 }
 460
 461 XMLApplication::~XMLApplication()
 462 {
 463     Iterator<SAMLAttributeDesignator*> i(m_designators);
 464     while (i.hasNext())
 465         delete i.next();
 466     Iterator<IAAP*> j(m_aaps);
 467     while (j.hasNext())
 468         delete j.next();
 469     Iterator<IMetadata*> k(m_metadatas);
 470     while (k.hasNext())
 471         delete k.next();
 472     Iterator<ITrust*> l(m_trusts);
 473     while (l.hasNext())
 474         delete l.next();
 475     Iterator<IRevocation*> m(m_revocations);
 476     while (m.hasNext())
 477         delete m.next();
 478 }
 479
 480 short XMLApplication::acceptNode(const DOMNode* node) const
 481 {
 482     if (saml::XML::isElementNamed(static_cast<const DOMElement*>(node),saml::XML::SAML_NS,L(AttributeDesignator)))
 483         return FILTER_REJECT;
 484     else if (saml::XML::isElementNamed(static_cast<const DOMElement*>(node),saml::XML::SAML_NS,L(Audience)))
 485         return FILTER_REJECT;
 486     if (XMLString::compareString(node->getNamespaceURI(),ShibTargetConfig::SHIBTARGET_NS))
 487         return FILTER_ACCEPT;
 488     const XMLCh* name=node->getLocalName();
 489     if (!XMLString::compareString(name,SHIBT_L(AAPProvider)) ||
 490         !XMLString::compareString(name,SHIBT_L(CredentialUse)) ||
 491         !XMLString::compareString(name,SHIBT_L(FederationProvider)) ||
 492         !XMLString::compareString(name,SHIBT_L(RevocationProvider)) ||
 493         !XMLString::compareString(name,SHIBT_L(TrustProvider)))
 494         return FILTER_REJECT;
 495
 496     return FILTER_ACCEPT;
 497 }
 498
 499 pair<bool,bool> XMLApplication::getBool(const char* name, const char* ns) const
 500 {
 501     pair<bool,bool> ret=XMLPropertySet::getBool(name,ns);
 502     if (ret.first)
 503         return ret;
 504     return m_base ? m_base->getBool(name,ns) : ret;
 505 }
 506
 507 pair<bool,const char*> XMLApplication::getString(const char* name, const char* ns) const
 508 {
 509     pair<bool,const char*> ret=XMLPropertySet::getString(name,ns);
 510     if (ret.first)
 511         return ret;
 512     return m_base ? m_base->getString(name,ns) : ret;
 513 }
 514
 515 pair<bool,const XMLCh*> XMLApplication::getXMLString(const char* name, const char* ns) const
 516 {
 517     pair<bool,const XMLCh*> ret=XMLPropertySet::getXMLString(name,ns);
 518     if (ret.first)
 519         return ret;
 520     return m_base ? m_base->getXMLString(name,ns) : ret;
 521 }
 522
 523 pair<bool,unsigned int> XMLApplication::getUnsignedInt(const char* name, const char* ns) const
 524 {
 525     pair<bool,unsigned int> ret=XMLPropertySet::getUnsignedInt(name,ns);
 526     if (ret.first)
 527         return ret;
 528     return m_base ? m_base->getUnsignedInt(name,ns) : ret;
 529 }
 530
 531 pair<bool,int> XMLApplication::getInt(const char* name, const char* ns) const
 532 {
 533     pair<bool,int> ret=XMLPropertySet::getInt(name,ns);
 534     if (ret.first)
 535         return ret;
 536     return m_base ? m_base->getInt(name,ns) : ret;
 537 }
 538
 539 const IPropertySet* XMLApplication::getPropertySet(const char* name, const char* ns) const
 540 {
 541     const IPropertySet* ret=XMLPropertySet::getPropertySet(name,ns);
 542     if (ret || !m_base)
 543         return ret;
 544     return m_base->getPropertySet(name,ns);
 545 }
 546
 547 Iterator<SAMLAttributeDesignator*> XMLApplication::getAttributeDesignators() const
 548 {
 549     if (!m_designators.empty() || !m_base)
 550         return m_designators;
 551     return m_base->getAttributeDesignators();
 552 }
 553
 554 Iterator<IAAP*> XMLApplication::getAAPProviders() const
 555 {
 556     return (m_aaps.empty() && m_base) ? m_base->getAAPProviders() : m_aaps;
 557 }
 558
 559 Iterator<IMetadata*> XMLApplication::getMetadataProviders() const
 560 {
 561     return (m_metadatas.empty() && m_base) ? m_base->getMetadataProviders() : m_metadatas;
 562 }
 563
 564 Iterator<ITrust*> XMLApplication::getTrustProviders() const
 565 {
 566     return (m_trusts.empty() && m_base) ? m_base->getTrustProviders() : m_trusts;
 567 }
 568
 569 Iterator<IRevocation*> XMLApplication::getRevocationProviders() const
 570 {
 571     return (m_revocations.empty() && m_base) ? m_base->getRevocationProviders() : m_revocations;
 572 }
 573
 574 Iterator<const XMLCh*> XMLApplication::getAudiences() const
 575 {
 576     return (m_audiences.empty() && m_base) ? m_base->getAudiences() : m_audiences;
 577 }
 578
 579 const pair<string,string>& XMLApplication::getCredentialUse(const IProvider* provider) const
 580 {
 581     if (m_credDefault.first.empty() && m_base)
 582         return m_base->getCredentialUse(provider);
 583
 584 #ifdef HAVE_GOOD_STL
 585     map<xstring,pair<string,string> >::const_iterator i=m_credMap.find(provider->getId());
 586     if (i!=m_credMap.end())
 587         return i->second;
 588     Iterator<const XMLCh*> groups=provider->getGroups();
 589     while (groups.hasNext()) {
 590         i=m_credMap.find(groups.next());
 591         if (i!=m_credMap.end())
 592             return i->second;
 593     }
 594 #else
 595     map<const XMLCh*,pair<string,string> >::const_iterator i=m_credMap.begin();
 596     for (; i!=m_credMap.end(); i++) {
 597         if (!XMLString::compareString(i->first,provider->getId()))
 598             return i->second;
 599         Iterator<const XMLCh*> groups=provider->getGroups();
 600         while (groups.hasNext()) {
 601             if (!XMLString::compareString(i->first,groups.next()))
 602                 return i->second;
 603         }
 604     }
 605 #endif
 606     return m_credDefault;
 607 }
 608
 609 ReloadableXMLFileImpl* XMLConfig::newImplementation(const char* pathname, bool first) const
 610 {
 611     return new XMLConfigImpl(pathname,first,this);
 612 }
 613
 614 ReloadableXMLFileImpl* XMLConfig::newImplementation(const DOMElement* e, bool first) const
 615 {
 616     return new XMLConfigImpl(e,first,this);
 617 }
 618
 619 short XMLConfigImpl::acceptNode(const DOMNode* node) const
 620 {
 621     if (XMLString::compareString(node->getNamespaceURI(),ShibTargetConfig::SHIBTARGET_NS))
 622         return FILTER_ACCEPT;
 623     const XMLCh* name=node->getLocalName();
 624     if (!XMLString::compareString(name,SHIBT_L(Applications)) ||
 625         !XMLString::compareString(name,SHIBT_L(CredentialsProvider)) ||
 626         !XMLString::compareString(name,SHIBT_L(Extensions)) ||
 627         !XMLString::compareString(name,SHIBT_L(Implementation)) ||
 628         !XMLString::compareString(name,SHIBT_L(Listener)) ||
 629         !XMLString::compareString(name,SHIBT_L(MemorySessionCache)) ||
 630         !XMLString::compareString(name,SHIBT_L(MySQLSessionCache)) ||
 631         !XMLString::compareString(name,SHIBT_L(RequestMap)) ||
 632         !XMLString::compareString(name,SHIBT_L(RequestMapProvider)) ||
 633         !XMLString::compareString(name,SHIBT_L(SessionCache)) ||
 634         !XMLString::compareString(name,SHIBT_L(TCPListener)) ||
 635         !XMLString::compareString(name,SHIBT_L(UnixListener)))
 636         return FILTER_REJECT;
 637
 638     return FILTER_ACCEPT;
 639 }
 640
 641 void XMLConfigImpl::init(bool first)
 642 {
 643     NDC ndc("XMLConfigImpl");
 644     Category& log=Category::getInstance("shibtarget.XMLConfig");
 645
 646     try {
 647         if (!saml::XML::isElementNamed(ReloadableXMLFileImpl::m_root,ShibTargetConfig::SHIBTARGET_NS,SHIBT_L(ShibbolethTargetConfig))) {
 648             log.error("Construction requires a valid configuration file: (conf:ShibbolethTargetConfig as root element)");
 649             throw MalformedException("Construction requires a valid configuration file: (conf:ShibbolethTargetConfig as root element)");
 650         }
 651
 652         ShibConfig& shibConf=ShibConfig::getConfig();
 653         ShibTargetConfig& conf=ShibTargetConfig::getConfig();
 654         const DOMElement* SHAR=saml::XML::getFirstChildElement(ReloadableXMLFileImpl::m_root,ShibTargetConfig::SHIBTARGET_NS,SHIBT_L(SHAR));
 655         const DOMElement* SHIRE=saml::XML::getFirstChildElement(ReloadableXMLFileImpl::m_root,ShibTargetConfig::SHIBTARGET_NS,SHIBT_L(SHIRE));
 656
 657         // Initialize log4cpp manually in order to redirect log messages as soon as possible.
 658         if (conf.isEnabled(ShibTargetConfig::Logging)) {
 659             const XMLCh* logger=NULL;
 660             if (conf.isEnabled(ShibTargetConfig::SHARExtensions))
 661                 logger=SHAR->getAttributeNS(NULL,SHIBT_L(logger));
 662             else if (conf.isEnabled(ShibTargetConfig::SHIREExtensions))
 663                 logger=SHIRE->getAttributeNS(NULL,SHIBT_L(logger));
 664             if (!logger || !*logger)
 665                 logger=ReloadableXMLFileImpl::m_root->getAttributeNS(NULL,SHIBT_L(logger));
 666             if (logger && *logger) {
 667                 auto_ptr_char logpath(logger);
 668                 cerr << "loading new logging configuration from " << logpath.get() << "\n";
 669                 try {
 670                     PropertyConfigurator::configure(logpath.get());
 671                     cerr << "New logging configuration loaded, check log destination for process status..." << "\n";
 672                 }
 673                 catch (ConfigureFailure& e) {
 674                     cerr << "Error reading logging configuration: " << e.what() << "\n";
 675                 }
 676             }
 677         }
 678
 679         // First load any property sets.
 680         load(ReloadableXMLFileImpl::m_root,log,this);
 681
 682         // Much of the processing can only occur on the first instantiation.
 683         if (first) {
 684             // Now load any extensions to insure any needed plugins are registered.
 685             DOMElement* exts=
 686                 saml::XML::getFirstChildElement(ReloadableXMLFileImpl::m_root,ShibTargetConfig::SHIBTARGET_NS,SHIBT_L(Extensions));
 687             if (exts) {
 688                 exts=saml::XML::getFirstChildElement(exts,ShibTargetConfig::SHIBTARGET_NS,SHIBT_L(Library));
 689                 while (exts) {
 690                     auto_ptr_char path(exts->getAttributeNS(NULL,SHIBT_L(path)));
 691                     try {
 692                         SAMLConfig::getConfig().saml_register_extension(path.get(),exts);
 693                         log.debug("loaded global extension library %s",path.get());
 694                     }
 695                     catch (SAMLException& e) {
 696                         const XMLCh* fatal=exts->getAttributeNS(NULL,SHIBT_L(fatal));
 697                         if (fatal && (*fatal==chLatin_t || *fatal==chDigit_1)) {
 698                             log.fatal("unable to load mandatory global extension library %s: %s", path.get(), e.what());
 699                             throw;
 700                         }
 701                         else
 702                             log.crit("unable to load optional global extension library %s: %s", path.get(), e.what());
 703                     }
 704                     exts=saml::XML::getNextSiblingElement(exts,ShibTargetConfig::SHIBTARGET_NS,SHIBT_L(Library));
 705                 }
 706             }
 707
 708             if (conf.isEnabled(ShibTargetConfig::SHARExtensions)) {
 709                 exts=saml::XML::getFirstChildElement(SHAR,ShibTargetConfig::SHIBTARGET_NS,SHIBT_L(Extensions));
 710                 if (exts) {
 711                     exts=saml::XML::getFirstChildElement(exts,ShibTargetConfig::SHIBTARGET_NS,SHIBT_L(Library));
 712                     while (exts) {
 713                         auto_ptr_char path(exts->getAttributeNS(NULL,SHIBT_L(path)));
 714                         try {
 715                             SAMLConfig::getConfig().saml_register_extension(path.get(),exts);
 716                             log.debug("loaded SHAR extension library %s",path.get());
 717                         }
 718                         catch (SAMLException& e) {
 719                             const XMLCh* fatal=exts->getAttributeNS(NULL,SHIBT_L(fatal));
 720                             if (fatal && (*fatal==chLatin_t || *fatal==chDigit_1)) {
 721                                 log.fatal("unable to load mandatory SHAR extension library %s: %s", path.get(), e.what());
 722                                 throw;
 723                             }
 724                             else
 725                                 log.crit("unable to load optional SHAR extension library %s: %s", path.get(), e.what());
 726                         }
 727                         exts=saml::XML::getNextSiblingElement(exts,ShibTargetConfig::SHIBTARGET_NS,SHIBT_L(Library));
 728                     }
 729                 }
 730             }
 731
 732             if (conf.isEnabled(ShibTargetConfig::SHIREExtensions)) {
 733                 exts=saml::XML::getFirstChildElement(SHIRE,ShibTargetConfig::SHIBTARGET_NS,SHIBT_L(Extensions));
 734                 if (exts) {
 735                     exts=saml::XML::getFirstChildElement(exts,ShibTargetConfig::SHIBTARGET_NS,SHIBT_L(Library));
 736                     while (exts) {
 737                         auto_ptr_char path(exts->getAttributeNS(NULL,SHIBT_L(path)));
 738                         try {
 739                             SAMLConfig::getConfig().saml_register_extension(path.get(),exts);
 740                             log.debug("loaded SHIRE extension library %s",path.get());
 741                         }
 742                         catch (SAMLException& e) {
 743                             const XMLCh* fatal=exts->getAttributeNS(NULL,SHIBT_L(fatal));
 744                             if (fatal && (*fatal==chLatin_t || *fatal==chDigit_1)) {
 745                                 log.fatal("unable to load mandatory SHIRE extension library %s: %s", path.get(), e.what());
 746                                 throw;
 747                             }
 748                             else
 749                                 log.crit("unable to load optional SHIRE extension library %s: %s", path.get(), e.what());
 750                         }
 751                         exts=saml::XML::getNextSiblingElement(exts,ShibTargetConfig::SHIBTARGET_NS,SHIBT_L(Library));
 752                     }
 753                 }
 754             }
 755
 756             // Instantiate the Listener and SessionCache objects.
 757             if (conf.isEnabled(ShibTargetConfig::Listener)) {
 758                 IPlugIn* plugin=NULL;
 759                 exts=saml::XML::getFirstChildElement(SHAR,ShibTargetConfig::SHIBTARGET_NS,SHIBT_L(UnixListener));
 760                 if (exts) {
 761                     log.info("building Listener of type %s...",shibtarget::XML::UnixListenerType);
 762                     plugin=shibConf.m_plugMgr.newPlugin(shibtarget::XML::UnixListenerType,exts);
 763                 }
 764                 else {
 765                     exts=saml::XML::getFirstChildElement(SHAR,ShibTargetConfig::SHIBTARGET_NS,SHIBT_L(TCPListener));
 766                     if (exts) {
 767                         log.info("building Listener of type %s...",shibtarget::XML::TCPListenerType);
 768                         plugin=shibConf.m_plugMgr.newPlugin(shibtarget::XML::TCPListenerType,exts);
 769                     }
 770                     else {
 771                         exts=saml::XML::getFirstChildElement(SHAR,ShibTargetConfig::SHIBTARGET_NS,SHIBT_L(Listener));
 772                         if (exts) {
 773                             auto_ptr_char type(exts->getAttributeNS(NULL,SHIBT_L(type)));
 774                             log.info("building Listener of type %s...",type.get());
 775                             plugin=shibConf.m_plugMgr.newPlugin(type.get(),exts);
 776                         }
 777                         else {
 778                             log.fatal("can't build Listener object, missing conf:Listener element?");
 779                             throw MalformedException("can't build Listener object, missing conf:Listener element?");
 780                         }
 781                     }
 782                 }
 783                 if (plugin) {
 784                     IListener* listen=dynamic_cast<IListener*>(plugin);
 785                     if (listen)
 786                         m_outer->m_listener=listen;
 787                     else {
 788                         delete plugin;
 789                         log.fatal("plugin was not a Listener object");
 790                         throw UnsupportedExtensionException("plugin was not a Listener object");
 791                     }
 792                 }
 793             }
 794
 795             if (conf.isEnabled(ShibTargetConfig::SessionCache)) {
 796                 IPlugIn* plugin=NULL;
 797                 exts=saml::XML::getFirstChildElement(SHAR,ShibTargetConfig::SHIBTARGET_NS,SHIBT_L(MemorySessionCache));
 798                 if (exts) {
 799                     log.info("building Session Cache of type %s...",shibtarget::XML::MemorySessionCacheType);
 800                     plugin=shibConf.m_plugMgr.newPlugin(shibtarget::XML::MemorySessionCacheType,exts);
 801                 }
 802                 else {
 803                     exts=saml::XML::getFirstChildElement(SHAR,ShibTargetConfig::SHIBTARGET_NS,SHIBT_L(MySQLSessionCache));
 804                     if (exts) {
 805                         log.info("building Session Cache of type %s...",shibtarget::XML::MySQLSessionCacheType);
 806                         plugin=shibConf.m_plugMgr.newPlugin(shibtarget::XML::MySQLSessionCacheType,exts);
 807                     }
 808                     else {
 809                         exts=saml::XML::getFirstChildElement(SHAR,ShibTargetConfig::SHIBTARGET_NS,SHIBT_L(SessionCache));
 810                         if (exts) {
 811                             auto_ptr_char type(exts->getAttributeNS(NULL,SHIBT_L(type)));
 812                             log.info("building Session Cache of type %s...",type.get());
 813                             plugin=shibConf.m_plugMgr.newPlugin(type.get(),exts);
 814                         }
 815                         else {
 816                             log.fatal("can't build Session Cache object, missing conf:SessionCache element?");
 817                             throw MalformedException("can't build Session Cache object, missing conf:SessionCache element?");
 818                         }
 819                     }
 820                 }
 821                 if (plugin) {
 822                     ISessionCache* cache=dynamic_cast<ISessionCache*>(plugin);
 823                     if (cache)
 824                         m_outer->m_cache=cache;
 825                     else {
 826                         delete plugin;
 827                         log.fatal("plugin was not a Session Cache object");
 828                         throw UnsupportedExtensionException("plugin was not a Session Cache object");
 829                     }
 830                 }
 831             }
 832         }
 833
 834         // Back to the fully dynamic stuff...next up is the Request Mapper.
 835         if (conf.isEnabled(ShibTargetConfig::RequestMapper)) {
 836             const DOMElement* child=saml::XML::getFirstChildElement(SHIRE,ShibTargetConfig::SHIBTARGET_NS,SHIBT_L(RequestMapProvider));
 837             if (child) {
 838                 auto_ptr_char type(child->getAttributeNS(NULL,SHIBT_L(type)));
 839                 log.info("building Request Mapper of type %s...",type.get());
 840                 IPlugIn* plugin=shibConf.m_plugMgr.newPlugin(type.get(),child);
 841                 if (plugin) {
 842                     IRequestMapper* reqmap=dynamic_cast<IRequestMapper*>(plugin);
 843                     if (reqmap)
 844                         m_requestMapper=reqmap;
 845                     else {
 846                         delete plugin;
 847                         log.fatal("plugin was not a Request Mapper object");
 848                         throw UnsupportedExtensionException("plugin was not a Request Mapper object");
 849                     }
 850                 }
 851             }
 852             else {
 853                 log.fatal("can't build Request Mapper object, missing conf:RequestMapProvider element?");
 854                 throw MalformedException("can't build Request Mapper object, missing conf:RequestMapProvider element?");
 855             }
 856         }
 857
 858         // Load the default application. This actually has a fixed ID of "default". ;-)
 859         const DOMElement* app=saml::XML::getFirstChildElement(
 860             ReloadableXMLFileImpl::m_root,ShibTargetConfig::SHIBTARGET_NS,SHIBT_L(Applications)
 861             );
 862         if (!app) {
 863             log.fatal("can't build default Application object, missing conf:Applications element?");
 864             throw SAMLException("can't build default Application object, missing conf:Applications element?");
 865         }
 866         XMLApplication* defapp=new XMLApplication(app);
 867         m_appmap[defapp->getId()]=defapp;
 868
 869         // Load any overrides.
 870         DOMNodeList* nlist=app->getElementsByTagNameNS(ShibTargetConfig::SHIBTARGET_NS,SHIBT_L(Application));
 871         for (int i=0; nlist && i<nlist->getLength(); i++) {
 872             XMLApplication* iapp=new XMLApplication(static_cast<DOMElement*>(nlist->item(i)),defapp);
 873             if (m_appmap.find(iapp->getId())!=m_appmap.end()) {
 874                 log.fatal("found conf:Application element with duplicate Id attribute");
 875                 throw SAMLException("found conf:Application element with duplicate Id attribute");
 876             }
 877             m_appmap[iapp->getId()]=iapp;
 878         }
 879
 880         // Finally we load any credentials providers.
 881         if (conf.isEnabled(ShibTargetConfig::Credentials)) {
 882             nlist=ReloadableXMLFileImpl::m_root->getElementsByTagNameNS(
 883                 ShibTargetConfig::SHIBTARGET_NS,SHIBT_L(CredentialsProvider)
 884                 );
 885             for (int i=0; nlist && i<nlist->getLength(); i++) {
 886                 auto_ptr_char type(static_cast<DOMElement*>(nlist->item(i))->getAttributeNS(NULL,SHIBT_L(type)));
 887                 log.info("building Credentials provider of type %s...",type.get());
 888                 IPlugIn* plugin=shibConf.m_plugMgr.newPlugin(type.get(),static_cast<DOMElement*>(nlist->item(i)));
 889                 if (plugin) {
 890                     ICredentials* creds=dynamic_cast<ICredentials*>(plugin);
 891                     if (creds)
 892                         m_creds.push_back(creds);
 893                     else {
 894                         delete plugin;
 895                         log.fatal("plugin was not a Credentials provider");
 896                         throw UnsupportedExtensionException("plugin was not a Credentials provider");
 897                     }
 898                 }
 899             }
 900         }
 901     }
 902     catch (SAMLException& e) {
 903         log.errorStream() << "Error while loading target configuration: " << e.what() << CategoryStream::ENDLINE;
 904         this->~XMLConfigImpl();
 905         throw;
 906     }
 907 #ifndef _DEBUG
 908     catch (...) {
 909         log.error("Unexpected error while loading target configuration");
 910         this->~XMLConfigImpl();
 911         throw;
 912     }
 913 #endif
 914 }
 915
 916 XMLConfigImpl::~XMLConfigImpl()
 917 {
 918     delete m_requestMapper;
 919     for (map<string,IApplication*>::iterator i=m_appmap.begin(); i!=m_appmap.end(); i++)
 920         delete i->second;
 921     for (vector<ICredentials*>::iterator j=m_creds.begin(); j!=m_creds.end(); j++)
 922         delete (*j);
 923 }