apache/mod_apache.cpp

   1 /*
   2  * mod_apache.cpp -- the core Apache Module code
   3  *
   4  * Created by:  Derek Atkins <derek@ihtfp.com>
   5  *
   6  * $Id$
   7  */
   8
   9 #ifdef SOLARIS2
  10 #undef _XOPEN_SOURCE    // causes gethostname conflict in unistd.h
  11 #endif
  12
  13 // SAML Runtime
  14 #include <saml/saml.h>
  15 #include <shib/shib.h>
  16 #include <shib/shib-threads.h>
  17 #include <shib-target/shib-target.h>
  18 #include <xercesc/util/regx/RegularExpression.hpp>
  19
  20 #undef _XPG4_2
  21
  22 // Apache specific header files
  23 #include <httpd.h>
  24 #include <http_config.h>
  25 #include <http_protocol.h>
  26 #include <http_main.h>
  27 #define CORE_PRIVATE
  28 #include <http_core.h>
  29 #include <http_log.h>
  30
  31 #ifndef SHIB_APACHE_13
  32 #include <http_request.h>
  33 #include <apr_strings.h>
  34 #include <apr_pools.h>
  35 #endif
  36
  37 #include <fstream>
  38 #include <sstream>
  39
  40 #ifdef HAVE_UNISTD_H
  41 #include <unistd.h>             // for getpid()
  42 #endif
  43
  44 using namespace std;
  45 using namespace saml;
  46 using namespace shibboleth;
  47 using namespace shibtarget;
  48
  49 extern "C" module MODULE_VAR_EXPORT mod_shib;
  50 int shib_handler(request_rec* r, const IApplication* application, SHIRE& shire);
  51
  52 namespace {
  53     char* g_szSHIBConfig = NULL;
  54     char* g_szSchemaDir = NULL;
  55     ShibTargetConfig* g_Config = NULL;
  56     static const char* g_UserDataKey = "_shib_check_user_";
  57 }
  58
  59 // per-server module configuration structure
  60 struct shib_server_config
  61 {
  62     char* szScheme;
  63 };
  64
  65 // creates the per-server configuration
  66 extern "C" void* create_shib_server_config(SH_AP_POOL* p, server_rec* s)
  67 {
  68     shib_server_config* sc=(shib_server_config*)ap_pcalloc(p,sizeof(shib_server_config));
  69     sc->szScheme = NULL;
  70     return sc;
  71 }
  72
  73 // overrides server configuration in virtual servers
  74 extern "C" void* merge_shib_server_config (SH_AP_POOL* p, void* base, void* sub)
  75 {
  76     shib_server_config* sc=(shib_server_config*)ap_pcalloc(p,sizeof(shib_server_config));
  77     shib_server_config* parent=(shib_server_config*)base;
  78     shib_server_config* child=(shib_server_config*)sub;
  79
  80     if (child->szScheme)
  81         sc->szScheme=ap_pstrdup(p,child->szScheme);
  82     else if (parent->szScheme)
  83         sc->szScheme=ap_pstrdup(p,parent->szScheme);
  84     else
  85         sc->szScheme=NULL;
  86
  87     return sc;
  88 }
  89
  90 // per-dir module configuration structure
  91 struct shib_dir_config
  92 {
  93     // RM Configuration
  94     char* szAuthGrpFile;    // Auth GroupFile name
  95     int bRequireAll;        // all require directives must match, otherwise OR logic
  96
  97     // SHIRE Configuration
  98     int bBasicHijack;       // activate for AuthType Basic?
  99     int bRequireSession;    // require a session?
 100     int bExportAssertion;   // export SAML assertion to the environment?
 101 };
 102
 103 // creates per-directory config structure
 104 extern "C" void* create_shib_dir_config (SH_AP_POOL* p, char* d)
 105 {
 106     shib_dir_config* dc=(shib_dir_config*)ap_pcalloc(p,sizeof(shib_dir_config));
 107     dc->bBasicHijack = -1;
 108     dc->bRequireSession = -1;
 109     dc->bExportAssertion = -1;
 110     dc->bRequireAll = -1;
 111     dc->szAuthGrpFile = NULL;
 112     return dc;
 113 }
 114
 115 // overrides server configuration in directories
 116 extern "C" void* merge_shib_dir_config (SH_AP_POOL* p, void* base, void* sub)
 117 {
 118     shib_dir_config* dc=(shib_dir_config*)ap_pcalloc(p,sizeof(shib_dir_config));
 119     shib_dir_config* parent=(shib_dir_config*)base;
 120     shib_dir_config* child=(shib_dir_config*)sub;
 121
 122     if (child->szAuthGrpFile)
 123         dc->szAuthGrpFile=ap_pstrdup(p,child->szAuthGrpFile);
 124     else if (parent->szAuthGrpFile)
 125         dc->szAuthGrpFile=ap_pstrdup(p,parent->szAuthGrpFile);
 126     else
 127         dc->szAuthGrpFile=NULL;
 128
 129     dc->bBasicHijack=((child->bBasicHijack==-1) ? parent->bBasicHijack : child->bBasicHijack);
 130     dc->bRequireSession=((child->bRequireSession==-1) ? parent->bRequireSession : child->bRequireSession);
 131     dc->bExportAssertion=((child->bExportAssertion==-1) ? parent->bExportAssertion : child->bExportAssertion);
 132     dc->bRequireAll=((child->bRequireAll==-1) ? parent->bRequireAll : child->bRequireAll);
 133     return dc;
 134 }
 135
 136 // generic global slot handlers
 137 extern "C" const char* ap_set_global_string_slot(cmd_parms* parms, void*, const char* arg)
 138 {
 139     *((char**)(parms->info))=ap_pstrdup(parms->pool,arg);
 140     return NULL;
 141 }
 142
 143 extern "C" const char* shib_set_server_string_slot(cmd_parms* parms, void*, const char* arg)
 144 {
 145     char* base=(char*)ap_get_module_config(parms->server->module_config,&mod_shib);
 146     int offset=(int)parms->info;
 147     *((char**)(base + offset))=ap_pstrdup(parms->pool,arg);
 148     return NULL;
 149 }
 150
 151 typedef const char* (*config_fn_t)(void);
 152
 153 static int shib_error_page(request_rec* r, const IApplication* app, const char* page, ShibMLP& mlp)
 154 {
 155     const IPropertySet* props=app->getPropertySet("Errors");
 156     if (props) {
 157         pair<bool,const char*> p=props->getString(page);
 158         if (p.first) {
 159             ifstream infile(p.second);
 160             if (!infile.fail()) {
 161                 const char* res = mlp.run(infile,props);
 162                 if (res) {
 163                     r->content_type = ap_psprintf(r->pool, "text/html");
 164                     ap_send_http_header(r);
 165                     ap_rprintf(r, res);
 166                     return DONE;
 167                 }
 168             }
 169         }
 170     }
 171
 172     ap_log_rerror(APLOG_MARK,APLOG_ERR,SH_AP_R(r),
 173         "shib_error_page() could not process shire error template for application %s",app->getId());
 174     return SERVER_ERROR;
 175 }
 176
 177 static char* shib_get_targeturl(request_rec* r, const char* scheme=NULL)
 178 {
 179     // On 1.3, this is always canonical, but on 2.0, UseCanonicalName comes into play.
 180     // However, we also have a setting to forcibly replace the scheme for esoteric cases.
 181     if (scheme) {
 182         unsigned port = ap_get_server_port(r);
 183         if ((!strcmp(scheme,"http") && port==80) || (!strcmp(scheme,"https") && port==443)) {
 184             return ap_pstrcat(r->pool, scheme, "://", ap_get_server_name(r), r->unparsed_uri, NULL);
 185         }
 186         return ap_psprintf(r->pool, "%s://%s:%u%s", scheme, ap_get_server_name(r), port, r->unparsed_uri);
 187     }
 188     return ap_construct_url(r->pool,r->unparsed_uri,r);
 189 }
 190
 191 extern "C" int shib_check_user(request_rec* r)
 192 {
 193     ap_log_rerror(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(r),"shib_check_user: ENTER");
 194     shib_dir_config* dc=(shib_dir_config*)ap_get_module_config(r->per_dir_config,&mod_shib);
 195     shib_server_config* sc=(shib_server_config*)ap_get_module_config(r->server->module_config,&mod_shib);
 196
 197     ostringstream threadid;
 198     threadid << "[" << getpid() << "] shib_check_user" << '\0';
 199     saml::NDC ndc(threadid.str().c_str());
 200
 201     const char* targeturl=shib_get_targeturl(r,sc->szScheme);
 202
 203     // We lock the configuration system for the duration.
 204     IConfig* conf=g_Config->getINI();
 205     Locker locker(conf);
 206
 207     // Map request to application and content settings.
 208     IRequestMapper* mapper=conf->getRequestMapper();
 209     Locker locker2(mapper);
 210     IRequestMapper::Settings settings=mapper->getSettingsFromParsedURL(
 211         (sc-> szScheme ? sc-> szScheme : ap_http_method(r)), ap_get_server_name(r), ap_get_server_port(r), r->unparsed_uri
 212         );
 213     pair<bool,const char*> application_id=settings.first->getString("applicationId");
 214     const IApplication* application=conf->getApplication(application_id.second);
 215     if (!application) {
 216         ap_log_rerror(APLOG_MARK,APLOG_ERR|APLOG_NOERRNO,SH_AP_R(r),
 217            "shib_check_user: unable to map request to application settings, check configuration");
 218         return SERVER_ERROR;
 219     }
 220
 221     // Declare SHIRE object for this request.
 222     SHIRE shire(application);
 223
 224     // Get location of this application's assertion consumer service and see if this is it.
 225     if (strstr(targeturl,shire.getShireURL(targeturl))) {
 226         return shib_handler(r,application,shire);
 227     }
 228
 229     // We can short circuit the handler if we run this...
 230     apr_pool_userdata_setn((const void*)42,g_UserDataKey,NULL,r->pool);
 231
 232     // Regular access to arbitrary resource...check AuthType
 233     const char *auth_type=ap_auth_type(r);
 234     if (!auth_type)
 235         return DECLINED;
 236
 237     if (strcasecmp(auth_type,"shibboleth")) {
 238         if (!strcasecmp(auth_type,"basic") && dc->bBasicHijack==1) {
 239             core_dir_config* conf=
 240                 (core_dir_config*)ap_get_module_config(r->per_dir_config,
 241                     ap_find_linked_module("http_core.c"));
 242             conf->ap_auth_type="shibboleth";
 243         }
 244         else
 245             return DECLINED;
 246     }
 247
 248     pair<bool,bool> requireSession = settings.first->getBool("requireSession");
 249     if (!requireSession.first || !requireSession.second)
 250         if (dc->bRequireSession==1)
 251             requireSession.second=true;
 252
 253     ap_log_rerror(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(r),"shib_check_user: session check for %s",targeturl);
 254
 255     pair<const char*,const char*> shib_cookie=shire.getCookieNameProps();   // always returns *something*
 256
 257     // We're in charge, so check for cookie.
 258     const char* session_id=NULL;
 259     const char* cookies=ap_table_get(r->headers_in,"Cookie");
 260
 261     if (cookies) {
 262         ap_log_rerror(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(r),"shib_check_user: cookies found: %s",cookies);
 263         if (session_id=strstr(cookies,shib_cookie.first)) {
 264             // Yep, we found a cookie -- pull it out (our session_id)
 265             session_id+=strlen(shib_cookie.first) + 1; /* Skip over the '=' */
 266             char* cookiebuf = ap_pstrdup(r->pool,session_id);
 267             char* cookieend = strchr(cookiebuf,';');
 268             if (cookieend)
 269                 *cookieend = '\0';    /* Ignore anyting after a ; */
 270             session_id=cookiebuf;
 271         }
 272     }
 273
 274     if (!session_id || !*session_id) {
 275         // If no session required, bail now.
 276         if (!requireSession.second)
 277             return OK;
 278
 279         // No acceptable cookie, and we require a session.  Generate an AuthnRequest.
 280         ap_log_rerror(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(r),"shib_check_user: no cookie found -- redirecting to WAYF");
 281         ap_table_setn(r->headers_out,"Location",ap_pstrdup(r->pool,shire.getAuthnRequest(targeturl)));
 282         return REDIRECT;
 283     }
 284
 285     // Make sure this session is still valid.
 286     RPCError* status = NULL;
 287     ShibMLP markupProcessor;
 288     markupProcessor.insert("requestURL", targeturl);
 289
 290     try {
 291         status = shire.sessionIsValid(session_id, r->connection->remote_ip);
 292     }
 293     catch (ShibTargetException &e) {
 294         ap_log_rerror(APLOG_MARK,APLOG_ERR|APLOG_NOERRNO,SH_AP_R(r),"shib_check_user(): %s", e.what());
 295         markupProcessor.insert("errorType", "Session Processing Error");
 296         markupProcessor.insert("errorText", e.what());
 297         markupProcessor.insert("errorDesc", "An error occurred while processing your request.");
 298         return shib_error_page(r, application, "shire", markupProcessor);
 299     }
 300 #ifndef _DEBUG
 301     catch (...) {
 302         ap_log_rerror(APLOG_MARK,APLOG_ERR|APLOG_NOERRNO,SH_AP_R(r),"shib_check_user(): caught unexpected error");
 303         markupProcessor.insert("errorType", "Session Processing Error");
 304         markupProcessor.insert("errorText", "Unexpected Exception");
 305         markupProcessor.insert("errorDesc", "An error occurred while processing your request.");
 306         return shib_error_page(r, application, "shire", markupProcessor);
 307     }
 308 #endif
 309
 310     // Check the status
 311     if (status->isError()) {
 312         ap_log_rerror(APLOG_MARK,APLOG_INFO|APLOG_NOERRNO,SH_AP_R(r),
 313                       "shib_check_user() session invalid: %s", status->getText());
 314
 315         // If no session required, bail now.
 316         if (!requireSession.second)
 317             return OK;  // XXX: Or should this be DECLINED?
 318                         // Has to be OK because DECLINED will just cause Apache to fail when it can't locate
 319                         // anything to process the AuthType. No session plus requireSession false means
 320                         // do not authenticate the user.
 321         else if (status->isRetryable()) {
 322             // Oops, session is invalid. Generate AuthnRequest.
 323             ap_table_setn(r->headers_out,"Location",ap_pstrdup(r->pool,shire.getAuthnRequest(targeturl)));
 324             delete status;
 325             return REDIRECT;
 326         }
 327         else {
 328             // return the error page to the user
 329             markupProcessor.insert(*status);
 330             delete status;
 331             return shib_error_page(r, application, "shire", markupProcessor);
 332         }
 333     }
 334
 335     delete status;
 336     // set the authtype
 337 #ifdef SHIB_APACHE_13
 338     if (r->connection)
 339         r->connection->ap_auth_type = "shibboleth";
 340 #else
 341     r->ap_auth_type = "shibboleth";
 342 #endif
 343     ap_log_rerror(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(r),"shib_check_user: session successfully verified");
 344
 345     // This is code transferred in from the auth check to export the attributes.
 346     // We could even combine the isSessionValid/getAssertions API...?
 347
 348     RM rm(application);
 349     vector<SAMLAssertion*> assertions;
 350     SAMLAuthenticationStatement* sso_statement=NULL;
 351
 352     try {
 353         status = rm.getAssertions(session_id, r->connection->remote_ip, assertions, &sso_statement);
 354     }
 355     catch (ShibTargetException &e) {
 356         ap_log_rerror(APLOG_MARK,APLOG_ERR|APLOG_NOERRNO,SH_AP_R(r),"shib_check_user(): %s", e.what());
 357         markupProcessor.insert("errorType", "Attribute Processing Error");
 358         markupProcessor.insert("errorText", e.what());
 359         markupProcessor.insert("errorDesc", "An error occurred while processing your request.");
 360         return shib_error_page(r, application, "rm", markupProcessor);
 361     }
 362 #ifndef _DEBUG
 363     catch (...) {
 364         ap_log_rerror(APLOG_MARK,APLOG_ERR|APLOG_NOERRNO,SH_AP_R(r),"shib_check_user(): caught unexpected error");
 365         markupProcessor.insert("errorType", "Attribute Processing Error");
 366         markupProcessor.insert("errorText", "Unexpected Exception");
 367         markupProcessor.insert("errorDesc", "An error occurred while processing your request.");
 368         return shib_error_page(r, application, "rm", markupProcessor);
 369     }
 370 #endif
 371
 372     if (status->isError()) {
 373         ap_log_rerror(APLOG_MARK,APLOG_ERR|APLOG_NOERRNO,SH_AP_R(r),
 374             "shib_check_user() getAssertions failed: %s", status->getText());
 375
 376         markupProcessor.insert(*status);
 377         delete status;
 378         return shib_error_page(r, application, "rm", markupProcessor);
 379     }
 380     delete status;
 381
 382     // Do we have an access control plugin?
 383     if (settings.second) {
 384         Locker acllock(settings.second);
 385         if (!settings.second->authorized(*sso_statement,assertions)) {
 386             for (int k = 0; k < assertions.size(); k++)
 387                 delete assertions[k];
 388             delete sso_statement;
 389             ap_log_rerror(APLOG_MARK,APLOG_ERR|APLOG_NOERRNO,SH_AP_R(r),"shib_check_user(): access control provider denied access");
 390             return shib_error_page(r, application, "access", markupProcessor);
 391         }
 392     }
 393
 394     // Get the AAP providers, which contain the attribute policy info.
 395     Iterator<IAAP*> provs=application->getAAPProviders();
 396
 397     // Clear out the list of mapped attributes
 398     while (provs.hasNext()) {
 399         IAAP* aap=provs.next();
 400         aap->lock();
 401         try {
 402             Iterator<const IAttributeRule*> rules=aap->getAttributeRules();
 403             while (rules.hasNext()) {
 404                 const char* header=rules.next()->getHeader();
 405                 if (header)
 406                     ap_table_unset(r->headers_in,header);
 407             }
 408         }
 409         catch(...) {
 410             aap->unlock();
 411             for (int k = 0; k < assertions.size(); k++)
 412                 delete assertions[k];
 413             delete sso_statement;
 414             ap_log_rerror(APLOG_MARK,APLOG_ERR|APLOG_NOERRNO,SH_AP_R(r),
 415                 "shib_check_user(): caught unexpected error while clearing headers");
 416             markupProcessor.insert("errorType", "Attribute Processing Error");
 417             markupProcessor.insert("errorText", "Unexpected Exception");
 418             markupProcessor.insert("errorDesc", "An error occurred while processing your request.");
 419             return shib_error_page(r, application, "rm", markupProcessor);
 420         }
 421         aap->unlock();
 422     }
 423     provs.reset();
 424
 425     // Maybe export the first assertion.
 426     ap_table_unset(r->headers_in,"Shib-Attributes");
 427     pair<bool,bool> exp=settings.first->getBool("exportAssertion");
 428     if (!exp.first || !exp.second)
 429         if (dc->bExportAssertion==1)
 430             exp.second=true;
 431     if (exp.second && assertions.size()) {
 432         string assertion;
 433         RM::serialize(*(assertions[0]), assertion);
 434         ap_table_set(r->headers_in,"Shib-Attributes", assertion.c_str());
 435     }
 436
 437     // Export the SAML AuthnMethod and the origin site name, and possibly the NameIdentifier.
 438     ap_table_unset(r->headers_in,"Shib-Origin-Site");
 439     ap_table_unset(r->headers_in,"Shib-Authentication-Method");
 440     ap_table_unset(r->headers_in,"Shib-NameIdentifier-Format");
 441     auto_ptr_char os(sso_statement->getSubject()->getNameIdentifier()->getNameQualifier());
 442     auto_ptr_char am(sso_statement->getAuthMethod());
 443     ap_table_set(r->headers_in,"Shib-Origin-Site", os.get());
 444     ap_table_set(r->headers_in,"Shib-Authentication-Method", am.get());
 445
 446     // Export NameID?
 447     AAP wrapper(provs,sso_statement->getSubject()->getNameIdentifier()->getFormat(),Constants::SHIB_ATTRIBUTE_NAMESPACE_URI);
 448     if (!wrapper.fail() && wrapper->getHeader()) {
 449         auto_ptr_char form(sso_statement->getSubject()->getNameIdentifier()->getFormat());
 450         auto_ptr_char nameid(sso_statement->getSubject()->getNameIdentifier()->getName());
 451         ap_table_set(r->headers_in,"Shib-NameIdentifier-Format",form.get());
 452         if (!strcmp(wrapper->getHeader(),"REMOTE_USER"))
 453             SH_AP_USER(r)=ap_pstrdup(r->pool,nameid.get());
 454         else
 455             ap_table_set(r->headers_in,wrapper->getHeader(),nameid.get());
 456     }
 457
 458     ap_table_unset(r->headers_in,"Shib-Application-ID");
 459     ap_table_set(r->headers_in,"Shib-Application-ID",application_id.second);
 460
 461     // Export the attributes.
 462     Iterator<SAMLAssertion*> a_iter(assertions);
 463     while (a_iter.hasNext()) {
 464         SAMLAssertion* assert=a_iter.next();
 465         Iterator<SAMLStatement*> statements=assert->getStatements();
 466         while (statements.hasNext()) {
 467             SAMLAttributeStatement* astate=dynamic_cast<SAMLAttributeStatement*>(statements.next());
 468             if (!astate)
 469                 continue;
 470             Iterator<SAMLAttribute*> attrs=astate->getAttributes();
 471             while (attrs.hasNext()) {
 472                 SAMLAttribute* attr=attrs.next();
 473
 474                 // Are we supposed to export it?
 475                 AAP wrapper(provs,attr->getName(),attr->getNamespace());
 476                 if (wrapper.fail() || !wrapper->getHeader())
 477                     continue;
 478
 479                 Iterator<string> vals=attr->getSingleByteValues();
 480                 if (!strcmp(wrapper->getHeader(),"REMOTE_USER") && vals.hasNext())
 481                     SH_AP_USER(r)=ap_pstrdup(r->pool,vals.next().c_str());
 482                 else {
 483                     int it=0;
 484                     char* header = (char*)ap_table_get(r->headers_in, wrapper->getHeader());
 485                     if (header) {
 486                         header=ap_pstrdup(r->pool, header);
 487                         it++;
 488                     }
 489                     else
 490                         header = ap_pstrdup(r->pool, "");
 491                     for (; vals.hasNext(); it++) {
 492                         string value = vals.next();
 493                         for (string::size_type pos = value.find_first_of(";", string::size_type(0));
 494                                 pos != string::npos;
 495                                 pos = value.find_first_of(";", pos)) {
 496                             value.insert(pos, "\\");
 497                             pos += 2;
 498                         }
 499                         header=ap_pstrcat(r->pool, header, (it ? ";" : ""), value.c_str(), NULL);
 500                     }
 501                     ap_table_setn(r->headers_in, wrapper->getHeader(), header);
 502                }
 503             }
 504         }
 505     }
 506
 507     // clean up memory
 508     for (int k = 0; k < assertions.size(); k++)
 509         delete assertions[k];
 510     delete sso_statement;
 511
 512     return OK;
 513 }
 514
 515 extern "C" int shib_post_handler(request_rec* r)
 516 {
 517     ap_log_rerror(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(r),
 518                 "shib_post_handler(%d): ENTER", (int)getpid());
 519     shib_server_config* sc=(shib_server_config*)ap_get_module_config(r->server->module_config,&mod_shib);
 520
 521 #ifndef SHIB_APACHE_13
 522     // With 2.x, this handler always runs, though last.
 523     // We check if shib_check_user ran, because it will detect a SHIRE request
 524     // and dispatch it directly.
 525     void* data;
 526     apr_pool_userdata_get(&data,g_UserDataKey,r->pool);
 527     if (data==(const void*)42) {
 528         ap_log_rerror(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(r),"shib_post_handler skipped since check_user ran");
 529         return DECLINED;
 530     }
 531 #endif
 532
 533     ostringstream threadid;
 534     threadid << "[" << getpid() << "] shib_post_handler" << '\0';
 535     saml::NDC ndc(threadid.str().c_str());
 536
 537     // We lock the configuration system for the duration.
 538     IConfig* conf=g_Config->getINI();
 539     Locker locker(conf);
 540
 541     // Map request to application and content settings.
 542     IRequestMapper* mapper=conf->getRequestMapper();
 543     Locker locker2(mapper);
 544     IRequestMapper::Settings settings=mapper->getSettingsFromParsedURL(
 545         (sc->szScheme ? sc->szScheme : ap_http_method(r)), ap_get_server_name(r), ap_get_server_port(r), r->unparsed_uri
 546         );
 547     pair<bool,const char*> application_id=settings.first->getString("applicationId");
 548     const IApplication* application=conf->getApplication(application_id.second);
 549     if (!application) {
 550         ap_log_rerror(APLOG_MARK,APLOG_ERR|APLOG_NOERRNO,SH_AP_R(r),
 551            "shib_post_handler: unable to map request to application settings, check configuration");
 552         return SERVER_ERROR;
 553     }
 554
 555     // Declare SHIRE object for this request.
 556     SHIRE shire(application);
 557
 558     return shib_handler(r, application, shire);
 559 }
 560
 561 int shib_handler(request_rec* r, const IApplication* application, SHIRE& shire)
 562 {
 563     shib_server_config* sc=(shib_server_config*)ap_get_module_config(r->server->module_config,&mod_shib);
 564
 565     const char* targeturl=shib_get_targeturl(r,sc->szScheme);
 566
 567     // Make sure we only process the SHIRE requests.
 568     if (!strstr(targeturl,shire.getShireURL(targeturl)))
 569         return DECLINED;
 570
 571     ap_log_rerror(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(r),"shib_handler() running");
 572
 573     const IPropertySet* sessionProps=application->getPropertySet("Sessions");
 574     if (!sessionProps) {
 575         ap_log_rerror(APLOG_MARK,APLOG_ERR|APLOG_NOERRNO,SH_AP_R(r),
 576            "shib_post_handler: unable to map request to application session settings, check configuration");
 577         return SERVER_ERROR;
 578     }
 579
 580     pair<const char*,const char*> shib_cookie=shire.getCookieNameProps();   // always returns something
 581
 582     ShibMLP markupProcessor;
 583     markupProcessor.insert("requestURL", targeturl);
 584
 585     // Process SHIRE request
 586     ap_log_rerror(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(r), "shib_handler() Beginning SHIRE processing");
 587
 588     try {
 589         pair<bool,bool> shireSSL=sessionProps->getBool("shireSSL");
 590
 591         // Make sure this is SSL, if it should be
 592         if ((!shireSSL.first || shireSSL.second) && strcmp(ap_http_method(r),"https"))
 593             throw ShibTargetException(SHIBRPC_OK, "blocked non-SSL access to session creation service");
 594
 595         // If this is a GET, we manufacture an AuthnRequest.
 596         if (!strcasecmp(r->method,"GET")) {
 597             const char* areq=r->args ? shire.getLazyAuthnRequest(r->args) : NULL;
 598             if (!areq)
 599                 throw ShibTargetException(SHIBRPC_OK, "malformed arguments to request a new session");
 600             ap_table_setn(r->headers_out, "Location", ap_pstrdup(r->pool,areq));
 601             return REDIRECT;
 602         }
 603         else if (strcasecmp(r->method,"POST")) {
 604             throw ShibTargetException(SHIBRPC_OK, "blocked non-POST to SHIRE POST processor");
 605         }
 606
 607         // Sure sure this POST is an appropriate content type
 608         const char *ct = ap_table_get(r->headers_in, "Content-type");
 609         if (!ct || strcasecmp(ct, "application/x-www-form-urlencoded"))
 610             throw ShibTargetException(SHIBRPC_OK,
 611                                       ap_psprintf(r->pool, "blocked bad content-type to SHIRE POST processor: %s", (ct ? ct : "")));
 612
 613         // Read the posted data
 614         if (ap_setup_client_block(r, REQUEST_CHUNKED_ERROR))
 615             throw ShibTargetException(SHIBRPC_OK, "CGI setup_client_block failed");
 616         if (!ap_should_client_block(r))
 617             throw ShibTargetException(SHIBRPC_OK, "CGI should_client_block failed");
 618         if (r->remaining > 1024*1024)
 619             throw ShibTargetException (SHIBRPC_OK, "CGI length too long...");
 620
 621         string cgistr;
 622         char buff[HUGE_STRING_LEN];
 623         ap_hard_timeout("[mod_shib] CGI Parser", r);
 624         memset(buff, 0, sizeof(buff));
 625         while (ap_get_client_block(r, buff, sizeof(buff)-1) > 0) {
 626             cgistr += buff;
 627             memset(buff, 0, sizeof(buff));
 628         }
 629         ap_kill_timeout(r);
 630
 631         // Parse the submission.
 632         pair<const char*,const char*> elements=shire.getFormSubmission(cgistr.c_str(),cgistr.length());
 633
 634         // Make sure the SAML Response parameter exists
 635         if (!elements.first || !*elements.first)
 636             throw ShibTargetException(SHIBRPC_OK, "SHIRE POST failed to find SAMLResponse form element");
 637
 638         // Make sure the target parameter exists
 639         if (!elements.second || !*elements.second)
 640             throw ShibTargetException(SHIBRPC_OK, "SHIRE POST failed to find TARGET form element");
 641
 642         ap_log_rerror(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(r),
 643             "shib_handler() Processing POST for target: %s", elements.second);
 644
 645         // process the post
 646         string cookie;
 647         RPCError* status = shire.sessionCreate(elements.first, r->connection->remote_ip, cookie);
 648
 649         if (status->isError()) {
 650             ap_log_rerror(APLOG_MARK,APLOG_ERR|APLOG_NOERRNO,SH_AP_R(r),
 651                     "shib_handler() POST process failed (%d): %s", status->getCode(), status->getText());
 652
 653             if (status->isRetryable()) {
 654                 delete status;
 655                 ap_log_rerror(APLOG_MARK,APLOG_INFO|APLOG_NOERRNO,SH_AP_R(r),
 656                         "shib_handler() retryable error, generating new AuthnRequest");
 657                 ap_table_setn(r->headers_out,"Location",ap_pstrdup(r->pool,shire.getAuthnRequest(elements.second)));
 658                 return REDIRECT;
 659             }
 660
 661             // return this error to the user.
 662             markupProcessor.insert(*status);
 663             delete status;
 664             return shib_error_page(r, application, "shire", markupProcessor);
 665         }
 666         delete status;
 667
 668         ap_log_rerror(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(r),
 669                   "shib_handler() POST process succeeded.  New session: %s", cookie.c_str());
 670
 671         // We've got a good session, set the cookie...
 672         char* val = ap_psprintf(r->pool,"%s=%s%s",shib_cookie.first,cookie.c_str(),shib_cookie.second);
 673         ap_table_setn(r->err_headers_out, "Set-Cookie", val);
 674         ap_log_rerror(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(r), "shib_handler() setting cookie: %s", val);
 675
 676         // ... and redirect to the target
 677         ap_table_setn(r->headers_out, "Location", ap_pstrdup(r->pool,elements.second));
 678         return REDIRECT;
 679     }
 680     catch (ShibTargetException &e) {
 681         ap_log_rerror(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(r), "shib_handler() caught exception: %s", e.what());
 682         markupProcessor.insert("errorType", "Session Creation Service Error");
 683         markupProcessor.insert("errorText", e.what());
 684         markupProcessor.insert("errorDesc", "An error occurred while processing your request.");
 685         return shib_error_page(r, application, "shire", markupProcessor);
 686     }
 687 #ifndef _DEBUG
 688     catch (...) {
 689         ap_log_rerror(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(r),"shib_handler(): unexpected exception");
 690         markupProcessor.insert("errorType", "Session Creation Service Error");
 691         markupProcessor.insert("errorText", "Unknown Exception");
 692         markupProcessor.insert("errorDesc", "An error occurred while processing your request.");
 693         return shib_error_page(r, application, "shire", markupProcessor);
 694     }
 695 #endif
 696
 697     ap_log_rerror(APLOG_MARK,APLOG_ERR|APLOG_NOERRNO,SH_AP_R(r),"shib_handler() server error");
 698     return SERVER_ERROR;
 699 }
 700
 701 static SH_AP_TABLE* groups_for_user(request_rec* r, const char* user, char* grpfile)
 702 {
 703     SH_AP_CONFIGFILE* f;
 704     SH_AP_TABLE* grps=ap_make_table(r->pool,15);
 705     char l[MAX_STRING_LEN];
 706     const char *group_name, *ll, *w;
 707
 708 #ifdef SHIB_APACHE_13
 709     if (!(f=ap_pcfg_openfile(r->pool,grpfile))) {
 710 #else
 711     if (ap_pcfg_openfile(&f,r->pool,grpfile) != APR_SUCCESS) {
 712 #endif
 713         ap_log_rerror(APLOG_MARK,APLOG_DEBUG,SH_AP_R(r),"groups_for_user() could not open group file: %s\n",grpfile);
 714         return NULL;
 715     }
 716
 717     SH_AP_POOL* sp;
 718 #ifdef SHIB_APACHE_13
 719     sp=ap_make_sub_pool(r->pool);
 720 #else
 721     if (apr_pool_create(&sp,r->pool) != APR_SUCCESS) {
 722         ap_log_rerror(APLOG_MARK,APLOG_ERR,0,r,
 723             "groups_for_user() could not create a subpool");
 724         return NULL;
 725     }
 726 #endif
 727
 728     while (!(ap_cfg_getline(l,MAX_STRING_LEN,f))) {
 729         if ((*l=='#') || (!*l))
 730             continue;
 731         ll = l;
 732         ap_clear_pool(sp);
 733
 734         group_name=ap_getword(sp,&ll,':');
 735
 736         while (*ll) {
 737             w=ap_getword_conf(sp,&ll);
 738             if (!strcmp(w,user)) {
 739                 ap_table_setn(grps,ap_pstrdup(r->pool,group_name),"in");
 740                 break;
 741             }
 742         }
 743     }
 744     ap_cfg_closefile(f);
 745     ap_destroy_pool(sp);
 746     return grps;
 747 }
 748
 749 /*
 750  * shib_auth_checker() -- a simple resource manager to
 751  * process the .htaccess settings and copy attributes
 752  * into the HTTP headers.
 753  */
 754 extern "C" int shib_auth_checker(request_rec* r)
 755 {
 756     shib_dir_config* dc=
 757         (shib_dir_config*)ap_get_module_config(r->per_dir_config,&mod_shib);
 758
 759     ap_log_rerror(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(r),"shib_auth_checker() executing");
 760
 761     // Regular access to arbitrary resource...check AuthType
 762     const char* auth_type=ap_auth_type(r);
 763     if (!auth_type || strcasecmp(auth_type,"shibboleth"))
 764         return DECLINED;
 765
 766     ostringstream threadid;
 767     threadid << "[" << getpid() << "] shibrm" << '\0';
 768     saml::NDC ndc(threadid.str().c_str());
 769
 770     // We lock the configuration system for the duration.
 771     IConfig* conf=g_Config->getINI();
 772     Locker locker(conf);
 773
 774     const char* application_id=ap_table_get(r->headers_in,"Shib-Application-ID");
 775     const IApplication* application=NULL;
 776     if (application_id)
 777         application = conf->getApplication(application_id);
 778
 779     // mod_auth clone
 780
 781     int m=r->method_number;
 782     bool method_restricted=false;
 783     const char *t, *w;
 784
 785     const array_header* reqs_arr=ap_requires(r);
 786     if (!reqs_arr)
 787         return OK;
 788
 789     require_line* reqs=(require_line*)reqs_arr->elts;
 790
 791     ap_log_rerror(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(r),"REQUIRE nelts: %d", reqs_arr->nelts);
 792     ap_log_rerror(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(r),"REQUIRE all: %d", dc->bRequireAll);
 793
 794     vector<bool> auth_OK(reqs_arr->nelts,false);
 795
 796 #define SHIB_AP_CHECK_IS_OK {       \
 797      if (dc->bRequireAll < 1)    \
 798          return OK;      \
 799      auth_OK[x] = true;      \
 800      continue;           \
 801 }
 802
 803     for (int x=0; x<reqs_arr->nelts; x++) {
 804         auth_OK[x] = false;
 805         if (!(reqs[x].method_mask & (1 << m)))
 806             continue;
 807         method_restricted=true;
 808
 809         t = reqs[x].requirement;
 810         w = ap_getword_white(r->pool, &t);
 811
 812         if (!strcasecmp(w,"Shibboleth")) {
 813             // This is a dummy rule needed because Apache conflates authn and authz.
 814             // Without some require rule, AuthType is ignored and no check_user hooks run.
 815             SHIB_AP_CHECK_IS_OK;
 816         }
 817         else if (!strcmp(w,"valid-user") && application_id) {
 818             ap_log_rerror(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(r),"shib_auth_checker() accepting valid-user");
 819             SHIB_AP_CHECK_IS_OK;
 820         }
 821         else if (!strcmp(w,"user") && SH_AP_USER(r)) {
 822             bool regexp=false;
 823             while (*t) {
 824                 w=ap_getword_conf(r->pool,&t);
 825                 if (*w=='~') {
 826                     regexp=true;
 827                     continue;
 828                 }
 829
 830                 if (regexp) {
 831                     try {
 832                         // To do regex matching, we have to convert from UTF-8.
 833                         auto_ptr<XMLCh> trans(fromUTF8(w));
 834                         RegularExpression re(trans.get());
 835                         auto_ptr<XMLCh> trans2(fromUTF8(SH_AP_USER(r)));
 836                         if (re.matches(trans2.get())) {
 837                             ap_log_rerror(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(r),"shib_auth_checker() accepting user: %s",w);
 838                             SHIB_AP_CHECK_IS_OK;
 839                         }
 840                     }
 841                     catch (XMLException& ex) {
 842                         auto_ptr_char tmp(ex.getMessage());
 843                         ap_log_rerror(APLOG_MARK,APLOG_ERR|APLOG_NOERRNO,SH_AP_R(r),
 844                                         "shib_auth_checker caught exception while parsing regular expression (%s): %s",w,tmp.get());
 845                     }
 846                 }
 847                 else if (!strcmp(SH_AP_USER(r),w)) {
 848                     ap_log_rerror(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(r),"shib_auth_checker() accepting user: %s",w);
 849                     SHIB_AP_CHECK_IS_OK;
 850                 }
 851             }
 852         }
 853         else if (!strcmp(w,"group")) {
 854             SH_AP_TABLE* grpstatus=NULL;
 855             if (dc->szAuthGrpFile && SH_AP_USER(r)) {
 856                 ap_log_rerror(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(r),"shib_auth_checker() using groups file: %s\n",dc->szAuthGrpFile);
 857                 grpstatus=groups_for_user(r,SH_AP_USER(r),dc->szAuthGrpFile);
 858             }
 859             if (!grpstatus)
 860                 return DECLINED;
 861
 862             while (*t) {
 863                 w=ap_getword_conf(r->pool,&t);
 864                 if (ap_table_get(grpstatus,w)) {
 865                     ap_log_rerror(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(r),"shib_auth_checker() accepting group: %s",w);
 866                     SHIB_AP_CHECK_IS_OK;
 867                 }
 868             }
 869         }
 870         else {
 871             Iterator<IAAP*> provs=application ? application->getAAPProviders() : EMPTY(IAAP*);
 872             AAP wrapper(provs,w);
 873             if (wrapper.fail()) {
 874                 ap_log_rerror(APLOG_MARK,APLOG_WARNING|APLOG_NOERRNO,SH_AP_R(r),
 875                     "shib_auth_checker() didn't recognize require rule: %s\n",w);
 876                 continue;
 877             }
 878
 879             bool regexp=false;
 880             const char* vals=ap_table_get(r->headers_in,wrapper->getHeader());
 881             while (*t && vals) {
 882                 w=ap_getword_conf(r->pool,&t);
 883                 if (*w=='~') {
 884                     regexp=true;
 885                     continue;
 886                 }
 887
 888                 try {
 889                     auto_ptr<RegularExpression> re;
 890                     if (regexp) {
 891                         delete re.release();
 892                         auto_ptr<XMLCh> trans(fromUTF8(w));
 893                         auto_ptr<RegularExpression> temp(new RegularExpression(trans.get()));
 894                         re=temp;
 895                     }
 896
 897                     string vals_str(vals);
 898                     int j = 0;
 899                     for (int i = 0;  i < vals_str.length();  i++) {
 900                         if (vals_str.at(i) == ';') {
 901                             if (i == 0) {
 902                                 ap_log_rerror(APLOG_MARK,APLOG_WARNING|APLOG_NOERRNO,SH_AP_R(r),
 903                                                 "shib_auth_checker() invalid header encoding %s: starts with semicolon", vals);
 904                                 return SERVER_ERROR;
 905                             }
 906
 907                             if (vals_str.at(i-1) == '\\') {
 908                                 vals_str.erase(i-1, 1);
 909                                 i--;
 910                                 continue;
 911                             }
 912
 913                             string val = vals_str.substr(j, i-j);
 914                             j = i+1;
 915                             if (regexp) {
 916                                 auto_ptr<XMLCh> trans(fromUTF8(val.c_str()));
 917                                 if (re->matches(trans.get())) {
 918                                     ap_log_rerror(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(r),
 919                                                     "shib_auth_checker() expecting %s, got %s: authorization granted", w, val.c_str());
 920                                     SHIB_AP_CHECK_IS_OK;
 921                                 }
 922                             }
 923                             else if (val==w) {
 924                                 ap_log_rerror(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(r),
 925                                                 "shib_auth_checker() expecting %s, got %s: authorization granted", w, val.c_str());
 926                                 SHIB_AP_CHECK_IS_OK;
 927                             }
 928                             else {
 929                                 ap_log_rerror(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(r),
 930                                                 "shib_auth_checker() expecting %s, got %s: authorization not granted", w, val.c_str());
 931                             }
 932                         }
 933                     }
 934
 935                     string val = vals_str.substr(j, vals_str.length()-j);
 936                     if (regexp) {
 937                         auto_ptr<XMLCh> trans(fromUTF8(val.c_str()));
 938                         if (re->matches(trans.get())) {
 939                             ap_log_rerror(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(r),
 940                                             "shib_auth_checker() expecting %s, got %s: authorization granted", w, val.c_str());
 941                             SHIB_AP_CHECK_IS_OK;
 942                         }
 943                     }
 944                     else if (val==w) {
 945                         ap_log_rerror(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(r),
 946                                         "shib_auth_checker() expecting %s, got %s: authorization granted", w, val.c_str());
 947                         SHIB_AP_CHECK_IS_OK;
 948                     }
 949                     else {
 950                         ap_log_rerror(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(r),
 951                                         "shib_auth_checker() expecting %s, got %s: authorization not granted", w, val.c_str());
 952                     }
 953                 }
 954                 catch (XMLException& ex) {
 955                     auto_ptr_char tmp(ex.getMessage());
 956                     ap_log_rerror(APLOG_MARK,APLOG_ERR|APLOG_NOERRNO,SH_AP_R(r),
 957                                     "shib_auth_checker caught exception while parsing regular expression (%s): %s",w,tmp.get());
 958                 }
 959             }
 960         }
 961     }
 962
 963     // check if all require directives are true
 964     bool auth_all_OK = true;
 965     for (int i= 0; i<reqs_arr->nelts; i++) {
 966         auth_all_OK &= auth_OK[i];
 967     }
 968     if (auth_all_OK)
 969         return OK;
 970
 971     if (!method_restricted)
 972         return OK;
 973
 974     if (!application_id) {
 975         ap_log_rerror(APLOG_MARK,APLOG_ERR|APLOG_NOERRNO,SH_AP_R(r),
 976            "shib_auth_checker: Shib-Application-ID header not found in request");
 977         return HTTP_FORBIDDEN;
 978     }
 979     else if (!application) {
 980         ap_log_rerror(APLOG_MARK,APLOG_ERR|APLOG_NOERRNO,SH_AP_R(r),
 981            "shib_auth_checker: unable to map request to application settings, check configuration");
 982         return HTTP_FORBIDDEN;
 983     }
 984
 985     ShibMLP markupProcessor;
 986     markupProcessor.insert("requestURL", ap_construct_url(r->pool,r->unparsed_uri,r));
 987     return shib_error_page(r, application, "access", markupProcessor);
 988 }
 989
 990 /*
 991  * shib_exit()
 992  *  Cleanup the (per-process) pool info.
 993  */
 994 #ifdef SHIB_APACHE_13
 995 extern "C" void shib_exit(server_rec* s, SH_AP_POOL* p)
 996 {
 997 #else
 998 extern "C" apr_status_t shib_exit(void* data)
 999 {
1000     server_rec* s = NULL;
1001 #endif
1002
1003     ap_log_error(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(s),"shib_exit(%d) dealing with g_Config..", (int)getpid());
1004
1005     g_Config->shutdown();
1006     g_Config = NULL;
1007
1008     ap_log_error(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(s),"shib_exit() done\n");
1009 #ifndef SHIB_APACHE_13
1010     return OK;
1011 #endif
1012 }
1013
1014
1015 #ifdef SHIB_APACHE_13
1016 extern "C" void shib_child_exit(server_rec* s, SH_AP_POOL* p)
1017 {
1018 #else
1019 extern "C" apr_status_t shib_child_exit(void* data)
1020 {
1021   server_rec* s = NULL;
1022 #endif
1023
1024   ap_log_error(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(s),"shib_child_exit(%d)",
1025                (int)getpid());
1026
1027 #ifndef SHIB_APACHE_13
1028     return OK;
1029 #endif
1030 }
1031
1032 /*
1033  * shire_child_init()
1034  *  Things to do when the child process is initialized.
1035  *  (or after the configs are read in apache-2)
1036  */
1037 #ifdef SHIB_APACHE_13
1038 extern "C" void shib_child_init(server_rec* s, SH_AP_POOL* p)
1039 #else
1040 extern "C" int shib_post_config(apr_pool_t* pconf, apr_pool_t* plog,
1041                                 apr_pool_t* ptemp, server_rec* s)
1042 #endif
1043 {
1044     // Initialize runtime components.
1045
1046     ap_log_error(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(s),"shib_child_init(%d) starting", (int)getpid());
1047
1048     if (g_Config) {
1049         ap_log_error(APLOG_MARK,APLOG_ERR|APLOG_NOERRNO,SH_AP_R(s),"shib_child_init() already initialized!");
1050 #ifdef SHIB_APACHE_13
1051         exit(1);
1052 #else
1053         return OK;
1054 #endif
1055     }
1056
1057     try {
1058         g_Config=&ShibTargetConfig::getConfig();
1059         g_Config->setFeatures(
1060             ShibTargetConfig::Listener |
1061             ShibTargetConfig::Metadata |
1062             ShibTargetConfig::AAP |
1063             ShibTargetConfig::RequestMapper |
1064             ShibTargetConfig::SHIREExtensions |
1065             ShibTargetConfig::Logging
1066             );
1067         if (!g_Config->init(g_szSchemaDir,g_szSHIBConfig)) {
1068             ap_log_error(APLOG_MARK,APLOG_CRIT|APLOG_NOERRNO,SH_AP_R(s),"shib_child_init() failed to initialize SHIB Target");
1069             exit(1);
1070         }
1071     }
1072     catch (...) {
1073         ap_log_error(APLOG_MARK,APLOG_CRIT|APLOG_NOERRNO,SH_AP_R(s),"shib_child_init() failed to initialize SHIB Target");
1074         exit (1);
1075     }
1076
1077     // Set the cleanup handler
1078     apr_pool_cleanup_register(pconf, NULL, &shib_exit, &shib_child_exit);
1079
1080     ap_log_error(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(s),"shib_child_init() done");
1081
1082 #ifndef SHIB_APACHE_13
1083     return OK;
1084 #endif
1085 }
1086
1087 #ifdef SHIB_APACHE_13
1088
1089 // SHIB Module commands
1090
1091 static command_rec shire_cmds[] = {
1092   {"SHIREConfig", (config_fn_t)ap_set_global_string_slot, &g_szSHIBConfig,
1093    RSRC_CONF, TAKE1, "Path to shibboleth.xml config file."},
1094   {"ShibConfig", (config_fn_t)ap_set_global_string_slot, &g_szSHIBConfig,
1095    RSRC_CONF, TAKE1, "Path to shibboleth.xml config file."},
1096   {"ShibSchemaDir", (config_fn_t)ap_set_global_string_slot, &g_szSchemaDir,
1097    RSRC_CONF, TAKE1, "Path to Shibboleth XML schema directory."},
1098
1099   {"ShibURLScheme", (config_fn_t)shib_set_server_string_slot,
1100    (void *) XtOffsetOf (shib_server_config, szScheme),
1101    RSRC_CONF, TAKE1, "URL scheme to force into generated URLs for a vhost."},
1102
1103   {"ShibBasicHijack", (config_fn_t)ap_set_flag_slot,
1104    (void *) XtOffsetOf (shib_dir_config, bBasicHijack),
1105    OR_AUTHCFG, FLAG, "Respond to AuthType Basic and convert to shib?"},
1106   {"ShibRequireSession", (config_fn_t)ap_set_flag_slot,
1107    (void *) XtOffsetOf (shib_dir_config, bRequireSession),
1108    OR_AUTHCFG, FLAG, "Initiates a new session if one does not exist."},
1109   {"ShibExportAssertion", (config_fn_t)ap_set_flag_slot,
1110    (void *) XtOffsetOf (shib_dir_config, bExportAssertion),
1111    OR_AUTHCFG, FLAG, "Export SAML assertion to Shibboleth-defined header?"},
1112   {"AuthGroupFile", (config_fn_t)ap_set_file_slot,
1113    (void *) XtOffsetOf (shib_dir_config, szAuthGrpFile),
1114    OR_AUTHCFG, TAKE1, "text file containing group names and member user IDs"},
1115   {"ShibRequireAll", (config_fn_t)ap_set_flag_slot,
1116    (void *) XtOffsetOf (shib_dir_config, bRequireAll),
1117    OR_AUTHCFG, FLAG, "All require directives must match!"},
1118
1119   {NULL}
1120 };
1121
1122 extern "C"{
1123 handler_rec shib_handlers[] = {
1124   { "shib-shire-post", shib_post_handler },
1125   { NULL }
1126 };
1127
1128 module MODULE_VAR_EXPORT mod_shib = {
1129     STANDARD_MODULE_STUFF,
1130     NULL,                        /* initializer */
1131     create_shib_dir_config,     /* dir config creater */
1132     merge_shib_dir_config,      /* dir merger --- default is to override */
1133     create_shib_server_config, /* server config */
1134     merge_shib_server_config,   /* merge server config */
1135     shire_cmds,                 /* command table */
1136     shib_handlers,              /* handlers */
1137     NULL,                       /* filename translation */
1138     shib_check_user,            /* check_user_id */
1139     shib_auth_checker,          /* check auth */
1140     NULL,                       /* check access */
1141     NULL,                       /* type_checker */
1142     NULL,                       /* fixups */
1143     NULL,                       /* logger */
1144     NULL,                       /* header parser */
1145     shib_child_init,            /* child_init */
1146     shib_exit,                  /* child_exit */
1147     NULL                        /* post read-request */
1148 };
1149
1150 #elif defined(SHIB_APACHE_20)
1151
1152 extern "C" void shib_register_hooks (apr_pool_t *p)
1153 {
1154   ap_hook_post_config(shib_post_config, NULL, NULL, APR_HOOK_MIDDLE);
1155   ap_hook_check_user_id(shib_check_user, NULL, NULL, APR_HOOK_MIDDLE);
1156   ap_hook_auth_checker(shib_auth_checker, NULL, NULL, APR_HOOK_FIRST);
1157   ap_hook_handler(shib_post_handler, NULL, NULL, APR_HOOK_LAST);
1158 }
1159
1160 // SHIB Module commands
1161
1162 extern "C" {
1163 static command_rec shib_cmds[] = {
1164   AP_INIT_TAKE1("ShibConfig",
1165                 (config_fn_t)ap_set_global_string_slot, &g_szSHIBConfig,
1166                 RSRC_CONF, "Path to shibboleth.xml config file."),
1167   AP_INIT_TAKE1("ShibSchemaDir",
1168      (config_fn_t)ap_set_global_string_slot, &g_szSchemaDir,
1169       RSRC_CONF, "Path to Shibboleth XML schema directory."),
1170
1171   AP_INIT_TAKE1("ShibURLScheme",
1172      (config_fn_t)shib_set_server_string_slot,
1173      (void *) offsetof (shib_server_config, szScheme),
1174       RSRC_CONF, "URL scheme to force into generated URLs for a vhost."),
1175
1176   AP_INIT_FLAG("ShibBasicHijack", (config_fn_t)ap_set_flag_slot,
1177                (void *) offsetof (shib_dir_config, bBasicHijack),
1178                OR_AUTHCFG, "Respond to AuthType Basic and convert to shib?"),
1179   AP_INIT_FLAG("ShibRequireSession", (config_fn_t)ap_set_flag_slot,
1180          (void *) offsetof (shib_dir_config, bRequireSession),
1181         OR_AUTHCFG, "Initiates a new session if one does not exist."),
1182   AP_INIT_FLAG("ShibExportAssertion", (config_fn_t)ap_set_flag_slot,
1183          (void *) offsetof (shib_dir_config, bExportAssertion),
1184         OR_AUTHCFG, "Export SAML assertion to Shibboleth-defined header?"),
1185   AP_INIT_TAKE1("AuthGroupFile", (config_fn_t)ap_set_file_slot,
1186                 (void *) offsetof (shib_dir_config, szAuthGrpFile),
1187                 OR_AUTHCFG, "text file containing group names and member user IDs"),
1188   AP_INIT_FLAG("ShibRequireAll", (config_fn_t)ap_set_flag_slot,
1189                (void *) offsetof (shib_dir_config, bRequireAll),
1190                OR_AUTHCFG, "All require directives must match!"),
1191
1192   {NULL}
1193 };
1194
1195 module AP_MODULE_DECLARE_DATA mod_shib = {
1196     STANDARD20_MODULE_STUFF,
1197     create_shib_dir_config,     /* create dir config */
1198     merge_shib_dir_config,      /* merge dir config --- default is to override */
1199     create_shib_server_config,  /* create server config */
1200     merge_shib_server_config,   /* merge server config */
1201     shib_cmds,                  /* command table */
1202     shib_register_hooks         /* register hooks */
1203 };
1204
1205 #else
1206 #error "undefined APACHE version"
1207 #endif
1208
1209 }