2 * Copyright 2001-2007 Internet2
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
20 * Apache module implementation
26 #undef _XOPEN_SOURCE // causes gethostname conflict in unistd.h
30 # define _CRT_NONSTDC_NO_DEPRECATE 1
31 # define _CRT_SECURE_NO_DEPRECATE 1
34 #include <shibsp/AbstractSPRequest.h>
35 #include <shibsp/AccessControl.h>
36 #include <shibsp/exceptions.h>
37 #include <shibsp/RequestMapper.h>
38 #include <shibsp/SPConfig.h>
39 #include <shibsp/ServiceProvider.h>
40 #include <shibsp/SessionCache.h>
41 #include <shibsp/attribute/Attribute.h>
42 #include <xercesc/util/XMLUniDefs.hpp>
43 #include <xercesc/util/regx/RegularExpression.hpp>
44 #include <xmltooling/XMLToolingConfig.h>
45 #include <xmltooling/util/NDC.h>
46 #include <xmltooling/util/Threads.h>
47 #include <xmltooling/util/XMLConstants.h>
48 #include <xmltooling/util/XMLHelper.h>
56 // Apache specific header files
58 #include <http_config.h>
59 #include <http_protocol.h>
60 #include <http_main.h>
62 #include <http_core.h>
64 #include <http_request.h>
66 #ifndef SHIB_APACHE_13
67 #include <apr_buckets.h>
68 #include <apr_strings.h>
69 #include <apr_pools.h>
76 #include <unistd.h> // for getpid()
79 using namespace shibsp;
80 using namespace xmltooling;
82 using xercesc::RegularExpression;
83 using xercesc::XMLException;
85 extern "C" module MODULE_VAR_EXPORT mod_shib;
88 char* g_szSHIBConfig = SHIBSP_CONFIG;
89 char* g_szSchemaDir = SHIBSP_SCHEMAS;
90 SPConfig* g_Config = NULL;
91 string g_unsetHeaderValue;
92 bool g_checkSpoofing = true;
93 static const char* g_UserDataKey = "_shib_check_user_";
94 static const XMLCh path[] = UNICODE_LITERAL_4(p,a,t,h);
95 static const XMLCh validate[] = UNICODE_LITERAL_8(v,a,l,i,d,a,t,e);
98 /* Apache 2.2.x headers must be accumulated and set in the output filter.
99 Apache 2.0.49+ supports the filter method.
100 Apache 1.3.x and lesser 2.0.x must write the headers directly. */
102 #if (defined(SHIB_APACHE_20) || defined(SHIB_APACHE_22)) && AP_MODULE_MAGIC_AT_LEAST(20020903,6)
103 #define SHIB_DEFERRED_HEADERS
106 /********************************************************************************/
107 // Basic Apache Configuration code.
110 // per-server module configuration structure
111 struct shib_server_config
116 // creates the per-server configuration
117 extern "C" void* create_shib_server_config(SH_AP_POOL* p, server_rec* s)
119 shib_server_config* sc=(shib_server_config*)ap_pcalloc(p,sizeof(shib_server_config));
124 // overrides server configuration in virtual servers
125 extern "C" void* merge_shib_server_config (SH_AP_POOL* p, void* base, void* sub)
127 shib_server_config* sc=(shib_server_config*)ap_pcalloc(p,sizeof(shib_server_config));
128 shib_server_config* parent=(shib_server_config*)base;
129 shib_server_config* child=(shib_server_config*)sub;
132 sc->szScheme=ap_pstrdup(p,child->szScheme);
133 else if (parent->szScheme)
134 sc->szScheme=ap_pstrdup(p,parent->szScheme);
141 // per-dir module configuration structure
142 struct shib_dir_config
145 char* szAuthGrpFile; // Auth GroupFile name
146 int bRequireAll; // all require directives must match, otherwise OR logic
148 // Content Configuration
149 char* szApplicationId; // Shib applicationId value
150 char* szRequireWith; // require a session using a specific initiator?
151 char* szRedirectToSSL; // redirect non-SSL requests to SSL port
152 int bOff; // flat-out disable all Shib processing
153 int bBasicHijack; // activate for AuthType Basic?
154 int bRequireSession; // require a session?
155 int bExportAssertion; // export SAML assertion to the environment?
156 int bUseEnvVars; // use environment?
157 int bUseHeaders; // use headers?
160 // creates per-directory config structure
161 extern "C" void* create_shib_dir_config (SH_AP_POOL* p, char* d)
163 shib_dir_config* dc=(shib_dir_config*)ap_pcalloc(p,sizeof(shib_dir_config));
165 dc->bBasicHijack = -1;
166 dc->bRequireSession = -1;
167 dc->bExportAssertion = -1;
168 dc->bRequireAll = -1;
169 dc->szRedirectToSSL = NULL;
170 dc->szAuthGrpFile = NULL;
171 dc->szApplicationId = NULL;
172 dc->szRequireWith = NULL;
173 dc->bUseEnvVars = -1;
174 dc->bUseHeaders = -1;
178 // overrides server configuration in directories
179 extern "C" void* merge_shib_dir_config (SH_AP_POOL* p, void* base, void* sub)
181 shib_dir_config* dc=(shib_dir_config*)ap_pcalloc(p,sizeof(shib_dir_config));
182 shib_dir_config* parent=(shib_dir_config*)base;
183 shib_dir_config* child=(shib_dir_config*)sub;
185 if (child->szAuthGrpFile)
186 dc->szAuthGrpFile=ap_pstrdup(p,child->szAuthGrpFile);
187 else if (parent->szAuthGrpFile)
188 dc->szAuthGrpFile=ap_pstrdup(p,parent->szAuthGrpFile);
190 dc->szAuthGrpFile=NULL;
192 if (child->szApplicationId)
193 dc->szApplicationId=ap_pstrdup(p,child->szApplicationId);
194 else if (parent->szApplicationId)
195 dc->szApplicationId=ap_pstrdup(p,parent->szApplicationId);
197 dc->szApplicationId=NULL;
199 if (child->szRequireWith)
200 dc->szRequireWith=ap_pstrdup(p,child->szRequireWith);
201 else if (parent->szRequireWith)
202 dc->szRequireWith=ap_pstrdup(p,parent->szRequireWith);
204 dc->szRequireWith=NULL;
206 if (child->szRedirectToSSL)
207 dc->szRedirectToSSL=ap_pstrdup(p,child->szRedirectToSSL);
208 else if (parent->szRedirectToSSL)
209 dc->szRedirectToSSL=ap_pstrdup(p,parent->szRedirectToSSL);
211 dc->szRedirectToSSL=NULL;
213 dc->bOff=((child->bOff==-1) ? parent->bOff : child->bOff);
214 dc->bBasicHijack=((child->bBasicHijack==-1) ? parent->bBasicHijack : child->bBasicHijack);
215 dc->bRequireSession=((child->bRequireSession==-1) ? parent->bRequireSession : child->bRequireSession);
216 dc->bExportAssertion=((child->bExportAssertion==-1) ? parent->bExportAssertion : child->bExportAssertion);
217 dc->bRequireAll=((child->bRequireAll==-1) ? parent->bRequireAll : child->bRequireAll);
218 dc->bUseEnvVars=((child->bUseEnvVars==-1) ? parent->bUseEnvVars : child->bUseEnvVars);
219 dc->bUseHeaders=((child->bUseHeaders==-1) ? parent->bUseHeaders : child->bUseHeaders);
223 // per-request module structure
224 struct shib_request_config
226 SH_AP_TABLE *env; // environment vars
227 #ifdef SHIB_DEFERRED_HEADERS
228 SH_AP_TABLE *hdr_out; // headers to browser
232 // create a request record
233 static shib_request_config *init_request_config(request_rec *r)
235 shib_request_config* rc=(shib_request_config*)ap_pcalloc(r->pool,sizeof(shib_request_config));
236 ap_set_module_config (r->request_config, &mod_shib, rc);
237 memset(rc, 0, sizeof(shib_request_config));
238 ap_log_rerror(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(r), "shib_init_rc");
242 // generic global slot handlers
243 extern "C" const char* ap_set_global_string_slot(cmd_parms* parms, void*, const char* arg)
245 *((char**)(parms->info))=ap_pstrdup(parms->pool,arg);
249 extern "C" const char* shib_set_server_string_slot(cmd_parms* parms, void*, const char* arg)
251 char* base=(char*)ap_get_module_config(parms->server->module_config,&mod_shib);
252 size_t offset=(size_t)parms->info;
253 *((char**)(base + offset))=ap_pstrdup(parms->pool,arg);
257 extern "C" const char* shib_ap_set_file_slot(cmd_parms* parms,
258 #ifdef SHIB_APACHE_13
259 char* arg1, char* arg2
261 void* arg1, const char* arg2
265 ap_set_file_slot(parms, arg1, arg2);
269 /********************************************************************************/
270 // Apache ShibTarget subclass(es) here.
272 class ShibTargetApache : public AbstractSPRequest
275 mutable string m_body;
276 mutable bool m_gotBody;
277 mutable vector<string> m_certs;
278 set<string> m_allhttp;
282 shib_dir_config* m_dc;
283 shib_server_config* m_sc;
284 shib_request_config* m_rc;
286 ShibTargetApache(request_rec* req, bool handler) : m_handler(handler), m_gotBody(false) {
287 m_sc = (shib_server_config*)ap_get_module_config(req->server->module_config, &mod_shib);
288 m_dc = (shib_dir_config*)ap_get_module_config(req->per_dir_config, &mod_shib);
289 m_rc = (shib_request_config*)ap_get_module_config(req->request_config, &mod_shib);
292 virtual ~ShibTargetApache() {}
294 const char* getScheme() const {
295 return m_sc->szScheme ? m_sc->szScheme : ap_http_method(m_req);
297 const char* getHostname() const {
298 return ap_get_server_name(m_req);
300 int getPort() const {
301 return ap_get_server_port(m_req);
303 const char* getRequestURI() const {
304 return m_req->unparsed_uri;
306 const char* getMethod() const {
307 return m_req->method;
309 string getContentType() const {
310 const char* type = ap_table_get(m_req->headers_in, "Content-Type");
311 return type ? type : "";
313 long getContentLength() const {
314 return m_gotBody ? m_body.length() : m_req->remaining;
316 string getRemoteAddr() const {
317 return m_req->connection->remote_ip;
319 void log(SPLogLevel level, const string& msg) const {
320 AbstractSPRequest::log(level,msg);
323 (level == SPDebug ? APLOG_DEBUG :
324 (level == SPInfo ? APLOG_INFO :
325 (level == SPWarn ? APLOG_WARNING :
326 (level == SPError ? APLOG_ERR : APLOG_CRIT))))|APLOG_NOERRNO,
331 const char* getQueryString() const { return m_req->args; }
332 const char* getRequestBody() const {
333 if (m_gotBody || m_req->method_number==M_GET)
334 return m_body.c_str();
335 #ifdef SHIB_APACHE_13
336 // Read the posted data
337 if (ap_setup_client_block(m_req, REQUEST_CHUNKED_DECHUNK) != OK) {
339 log(SPError, "Apache function (setup_client_block) failed while reading request body.");
340 return m_body.c_str();
342 if (!ap_should_client_block(m_req)) {
344 log(SPError, "Apache function (should_client_block) failed while reading request body.");
345 return m_body.c_str();
347 if (m_req->remaining > 1024*1024)
348 throw opensaml::SecurityPolicyException("Blocked request body larger than 1M size limit.");
351 char buff[HUGE_STRING_LEN];
352 ap_hard_timeout("[mod_shib] getRequestBody", m_req);
353 while ((len=ap_get_client_block(m_req, buff, sizeof(buff))) > 0) {
354 ap_reset_timeout(m_req);
355 m_body.append(buff, len);
357 ap_kill_timeout(m_req);
362 apr_bucket_brigade* bb = apr_brigade_create(m_req->pool, m_req->connection->bucket_alloc);
365 apr_status_t rv = ap_get_brigade(m_req->input_filters, bb, AP_MODE_READBYTES, APR_BLOCK_READ, HUGE_STRING_LEN);
366 if (rv != APR_SUCCESS) {
367 log(SPError, "Apache function (ap_get_brigade) failed while reading request body.");
371 for (bucket = APR_BRIGADE_FIRST(bb); bucket != APR_BRIGADE_SENTINEL(bb); bucket = APR_BUCKET_NEXT(bucket)) {
372 if (APR_BUCKET_IS_EOS(bucket)) {
377 /* We can't do much with this. */
378 if (APR_BUCKET_IS_FLUSH(bucket))
382 apr_bucket_read(bucket, &data, &len, APR_BLOCK_READ);
384 m_body.append(data, len);
386 apr_brigade_cleanup(bb);
388 apr_brigade_destroy(bb);
391 return m_body.c_str();
393 void clearHeader(const char* rawname, const char* cginame) {
394 if (m_dc->bUseEnvVars != 0) {
395 // ap_log_rerror(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(m_req), "shib_clear_header: env\n");
396 if (m_rc && m_rc->env) ap_table_unset(m_rc->env, rawname);
398 if (m_dc->bUseHeaders == 1) {
399 // ap_log_rerror(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(m_req), "shib_clear_header: hdr\n");
400 if (g_checkSpoofing && ap_is_initial_req(m_req)) {
401 if (m_allhttp.empty()) {
402 // First time, so populate set with "CGI" versions of client-supplied headers.
403 #ifdef SHIB_APACHE_13
404 array_header *hdrs_arr = ap_table_elts(m_req->headers_in);
405 table_entry *hdrs = (table_entry *) hdrs_arr->elts;
407 const apr_array_header_t *hdrs_arr = apr_table_elts(m_req->headers_in);
408 const apr_table_entry_t *hdrs = (const apr_table_entry_t *) hdrs_arr->elts;
410 for (int i = 0; i < hdrs_arr->nelts; ++i) {
413 string cgiversion("HTTP_");
414 const char* pch = hdrs[i].key;
416 cgiversion += (isalnum(*pch) ? toupper(*pch) : '_');
419 m_allhttp.insert(cgiversion);
423 if (m_allhttp.count(cginame) > 0)
424 throw opensaml::SecurityPolicyException("Attempt to spoof header ($1) was detected.", params(1, rawname));
426 ap_table_unset(m_req->headers_in, rawname);
427 ap_table_set(m_req->headers_in, rawname, g_unsetHeaderValue.c_str());
430 void setHeader(const char* name, const char* value) {
431 if (m_dc->bUseEnvVars != 0) {
433 // this happens on subrequests
434 // ap_log_rerror(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(m_req), "shib_setheader: no_m_rc\n");
435 m_rc = init_request_config(m_req);
438 m_rc->env = ap_make_table(m_req->pool, 10);
439 // ap_log_rerror(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(m_req), "shib_set_env: %s=%s\n", name, value?value:"Null");
440 ap_table_set(m_rc->env, name, value ? value : "");
442 if (m_dc->bUseHeaders == 1)
443 ap_table_set(m_req->headers_in, name, value);
445 string getHeader(const char* name) const {
446 const char* hdr = ap_table_get(m_req->headers_in, name);
447 return string(hdr ? hdr : "");
449 string getSecureHeader(const char* name) const {
450 if (m_dc->bUseEnvVars != 0) {
452 if (m_rc && m_rc->env)
453 hdr = ap_table_get(m_rc->env, name);
456 return string(hdr ? hdr : "");
458 return getHeader(name);
460 void setRemoteUser(const char* user) {
461 SH_AP_USER(m_req) = user ? ap_pstrdup(m_req->pool, user) : NULL;
463 string getRemoteUser() const {
464 return string(SH_AP_USER(m_req) ? SH_AP_USER(m_req) : "");
466 void setContentType(const char* type) {
467 m_req->content_type = ap_psprintf(m_req->pool, type);
469 void setResponseHeader(const char* name, const char* value) {
470 #ifdef SHIB_DEFERRED_HEADERS
472 // this happens on subrequests
473 m_rc = init_request_config(m_req);
475 ap_table_add(m_rc->hdr_out, name, value);
478 ap_table_add(m_req->err_headers_out, name, value);
480 long sendResponse(istream& in, long status) {
481 ap_send_http_header(m_req);
485 ap_rwrite(buf,in.gcount(),m_req);
487 if (status!=XMLTOOLING_HTTP_STATUS_OK)
488 m_req->status = status;
491 long sendRedirect(const char* url) {
492 ap_table_set(m_req->headers_out, "Location", url);
495 const vector<string>& getClientCertificates() const {
496 if (m_certs.empty()) {
497 const char* cert = ap_table_get(m_req->subprocess_env, "SSL_CLIENT_CERT");
499 m_certs.push_back(cert);
502 cert = ap_table_get(m_req->subprocess_env, ap_psprintf(m_req->pool, "SSL_CLIENT_CERT_CHAIN_%d", i++));
504 m_certs.push_back(cert);
509 long returnDecline(void) { return DECLINED; }
510 long returnOK(void) { return OK; }
513 /********************************************************************************/
516 extern "C" int shib_check_user(request_rec* r)
518 // Short-circuit entirely?
519 if (((shib_dir_config*)ap_get_module_config(r->per_dir_config, &mod_shib))->bOff==1)
522 ap_log_rerror(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(r), "shib_check_user(%d): ENTER", (int)getpid());
524 ostringstream threadid;
525 threadid << "[" << getpid() << "] shib_check_user" << '\0';
526 xmltooling::NDC ndc(threadid.str().c_str());
529 ShibTargetApache sta(r,false);
531 // Check user authentication and export information, then set the handler bypass
532 pair<bool,long> res = sta.getServiceProvider().doAuthentication(sta,true);
533 apr_pool_userdata_setn((const void*)42,g_UserDataKey,NULL,r->pool);
534 if (res.first) return res.second;
536 // user auth was okay -- export the assertions now
537 res = sta.getServiceProvider().doExport(sta);
538 if (res.first) return res.second;
540 // export happened successfully.. this user is ok.
543 catch (exception& e) {
544 ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, SH_AP_R(r), "shib_check_user threw an exception: %s", e.what());
549 ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, SH_AP_R(r), "shib_check_user threw an uncaught exception!");
555 extern "C" int shib_handler(request_rec* r)
557 // Short-circuit entirely?
558 if (((shib_dir_config*)ap_get_module_config(r->per_dir_config, &mod_shib))->bOff==1)
561 ostringstream threadid;
562 threadid << "[" << getpid() << "] shib_handler" << '\0';
563 xmltooling::NDC ndc(threadid.str().c_str());
565 #ifndef SHIB_APACHE_13
566 // With 2.x, this handler always runs, though last.
567 // We check if shib_check_user ran, because it will detect a handler request
568 // and dispatch it directly.
570 apr_pool_userdata_get(&data,g_UserDataKey,r->pool);
571 if (data==(const void*)42) {
572 ap_log_rerror(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(r),"shib_handler skipped since check_user ran");
577 ap_log_rerror(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(r),"shib_handler(%d): ENTER: %s", (int)getpid(), r->handler);
580 ShibTargetApache sta(r,true);
582 pair<bool,long> res = sta.getServiceProvider().doHandler(sta);
583 if (res.first) return res.second;
585 ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, SH_AP_R(r), "doHandler() did not do anything.");
588 catch (exception& e) {
589 ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, SH_AP_R(r), "shib_handler threw an exception: %s", e.what());
594 ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, SH_AP_R(r), "shib_handler threw an uncaught exception!");
601 * shib_auth_checker() -- a simple resource manager to
602 * process the .htaccess settings
604 extern "C" int shib_auth_checker(request_rec* r)
606 // Short-circuit entirely?
607 if (((shib_dir_config*)ap_get_module_config(r->per_dir_config, &mod_shib))->bOff==1)
610 ap_log_rerror(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(r), "shib_auth_checker(%d): ENTER", (int)getpid());
612 ostringstream threadid;
613 threadid << "[" << getpid() << "] shib_auth_checker" << '\0';
614 xmltooling::NDC ndc(threadid.str().c_str());
617 ShibTargetApache sta(r,false);
619 pair<bool,long> res = sta.getServiceProvider().doAuthorization(sta);
620 if (res.first) return res.second;
625 catch (exception& e) {
626 ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, SH_AP_R(r), "shib_auth_checker threw an exception: %s", e.what());
631 ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, SH_AP_R(r), "shib_auth_checker threw an uncaught exception!");
637 // Access control plugin that enforces htaccess rules
638 class htAccessControl : virtual public AccessControl
642 ~htAccessControl() {}
643 Lockable* lock() {return this;}
645 bool authorized(const SPRequest& request, const Session* session) const;
647 bool checkAttribute(const SPRequest& request, const Attribute* attr, const char* toMatch, RegularExpression* re) const;
650 AccessControl* htAccessFactory(const xercesc::DOMElement* const & e)
652 return new htAccessControl();
655 class ApacheRequestMapper : public virtual RequestMapper, public virtual PropertySet
658 ApacheRequestMapper(const xercesc::DOMElement* e);
659 ~ApacheRequestMapper() { delete m_mapper; delete m_htaccess; delete m_staKey; delete m_propsKey; }
660 Lockable* lock() { return m_mapper->lock(); }
661 void unlock() { m_staKey->setData(NULL); m_propsKey->setData(NULL); m_mapper->unlock(); }
662 Settings getSettings(const SPRequest& request) const;
664 const PropertySet* getParent() const { return NULL; }
665 void setParent(const PropertySet*) {}
666 pair<bool,bool> getBool(const char* name, const char* ns=NULL) const;
667 pair<bool,const char*> getString(const char* name, const char* ns=NULL) const;
668 pair<bool,const XMLCh*> getXMLString(const char* name, const char* ns=NULL) const;
669 pair<bool,unsigned int> getUnsignedInt(const char* name, const char* ns=NULL) const;
670 pair<bool,int> getInt(const char* name, const char* ns=NULL) const;
671 const PropertySet* getPropertySet(const char* name, const char* ns="urn:mace:shibboleth:2.0:native:sp:config") const;
672 const xercesc::DOMElement* getElement() const;
675 RequestMapper* m_mapper;
677 ThreadKey* m_propsKey;
678 AccessControl* m_htaccess;
681 RequestMapper* ApacheRequestMapFactory(const xercesc::DOMElement* const & e)
683 return new ApacheRequestMapper(e);
686 ApacheRequestMapper::ApacheRequestMapper(const xercesc::DOMElement* e) : m_mapper(NULL), m_staKey(NULL), m_propsKey(NULL), m_htaccess(NULL)
688 m_mapper=SPConfig::getConfig().RequestMapperManager.newPlugin(XML_REQUEST_MAPPER,e);
689 m_htaccess=new htAccessControl();
690 m_staKey=ThreadKey::create(NULL);
691 m_propsKey=ThreadKey::create(NULL);
694 RequestMapper::Settings ApacheRequestMapper::getSettings(const SPRequest& request) const
696 Settings s=m_mapper->getSettings(request);
697 m_staKey->setData((void*)dynamic_cast<const ShibTargetApache*>(&request));
698 m_propsKey->setData((void*)s.first);
699 return pair<const PropertySet*,AccessControl*>(this,s.second ? s.second : m_htaccess);
702 pair<bool,bool> ApacheRequestMapper::getBool(const char* name, const char* ns) const
704 const ShibTargetApache* sta=reinterpret_cast<const ShibTargetApache*>(m_staKey->getData());
705 const PropertySet* s=reinterpret_cast<const PropertySet*>(m_propsKey->getData());
707 // Override Apache-settable boolean properties.
708 if (name && !strcmp(name,"requireSession") && sta->m_dc->bRequireSession==1)
709 return make_pair(true,true);
710 else if (name && !strcmp(name,"exportAssertion") && sta->m_dc->bExportAssertion==1)
711 return make_pair(true,true);
713 return s ? s->getBool(name,ns) : make_pair(false,false);
716 pair<bool,const char*> ApacheRequestMapper::getString(const char* name, const char* ns) const
718 const ShibTargetApache* sta=reinterpret_cast<const ShibTargetApache*>(m_staKey->getData());
719 const PropertySet* s=reinterpret_cast<const PropertySet*>(m_propsKey->getData());
721 // Override Apache-settable string properties.
722 if (name && !strcmp(name,"authType")) {
723 const char *auth_type=ap_auth_type(sta->m_req);
725 // Check for Basic Hijack
726 if (!strcasecmp(auth_type, "basic") && sta->m_dc->bBasicHijack == 1)
727 auth_type = "shibboleth";
728 return make_pair(true,auth_type);
731 else if (name && !strcmp(name,"applicationId") && sta->m_dc->szApplicationId)
732 return pair<bool,const char*>(true,sta->m_dc->szApplicationId);
733 else if (name && !strcmp(name,"requireSessionWith") && sta->m_dc->szRequireWith)
734 return pair<bool,const char*>(true,sta->m_dc->szRequireWith);
735 else if (name && !strcmp(name,"redirectToSSL") && sta->m_dc->szRedirectToSSL)
736 return pair<bool,const char*>(true,sta->m_dc->szRedirectToSSL);
738 return s ? s->getString(name,ns) : pair<bool,const char*>(false,NULL);
741 pair<bool,const XMLCh*> ApacheRequestMapper::getXMLString(const char* name, const char* ns) const
743 const PropertySet* s=reinterpret_cast<const PropertySet*>(m_propsKey->getData());
744 return s ? s->getXMLString(name,ns) : pair<bool,const XMLCh*>(false,NULL);
747 pair<bool,unsigned int> ApacheRequestMapper::getUnsignedInt(const char* name, const char* ns) const
749 const ShibTargetApache* sta=reinterpret_cast<const ShibTargetApache*>(m_staKey->getData());
750 const PropertySet* s=reinterpret_cast<const PropertySet*>(m_propsKey->getData());
752 // Override Apache-settable int properties.
753 if (name && !strcmp(name,"redirectToSSL") && sta->m_dc->szRedirectToSSL)
754 return pair<bool,unsigned int>(true,strtol(sta->m_dc->szRedirectToSSL,NULL,10));
756 return s ? s->getUnsignedInt(name,ns) : pair<bool,unsigned int>(false,0);
759 pair<bool,int> ApacheRequestMapper::getInt(const char* name, const char* ns) const
761 const ShibTargetApache* sta=reinterpret_cast<const ShibTargetApache*>(m_staKey->getData());
762 const PropertySet* s=reinterpret_cast<const PropertySet*>(m_propsKey->getData());
764 // Override Apache-settable int properties.
765 if (name && !strcmp(name,"redirectToSSL") && sta->m_dc->szRedirectToSSL)
766 return pair<bool,int>(true,atoi(sta->m_dc->szRedirectToSSL));
768 return s ? s->getInt(name,ns) : pair<bool,int>(false,0);
771 const PropertySet* ApacheRequestMapper::getPropertySet(const char* name, const char* ns) const
773 const PropertySet* s=reinterpret_cast<const PropertySet*>(m_propsKey->getData());
774 return s ? s->getPropertySet(name,ns) : NULL;
777 const xercesc::DOMElement* ApacheRequestMapper::getElement() const
779 const PropertySet* s=reinterpret_cast<const PropertySet*>(m_propsKey->getData());
780 return s ? s->getElement() : NULL;
783 static SH_AP_TABLE* groups_for_user(request_rec* r, const char* user, char* grpfile)
786 SH_AP_TABLE* grps=ap_make_table(r->pool,15);
787 char l[MAX_STRING_LEN];
788 const char *group_name, *ll, *w;
790 #ifdef SHIB_APACHE_13
791 if (!(f=ap_pcfg_openfile(r->pool,grpfile))) {
793 if (ap_pcfg_openfile(&f,r->pool,grpfile) != APR_SUCCESS) {
795 ap_log_rerror(APLOG_MARK,APLOG_DEBUG,SH_AP_R(r),"groups_for_user() could not open group file: %s\n",grpfile);
800 #ifdef SHIB_APACHE_13
801 sp=ap_make_sub_pool(r->pool);
803 if (apr_pool_create(&sp,r->pool) != APR_SUCCESS) {
804 ap_log_rerror(APLOG_MARK,APLOG_ERR,0,r,
805 "groups_for_user() could not create a subpool");
810 while (!(ap_cfg_getline(l,MAX_STRING_LEN,f))) {
811 if ((*l=='#') || (!*l))
816 group_name=ap_getword(sp,&ll,':');
819 w=ap_getword_conf(sp,&ll);
820 if (!strcmp(w,user)) {
821 ap_table_setn(grps,ap_pstrdup(r->pool,group_name),"in");
831 bool htAccessControl::checkAttribute(const SPRequest& request, const Attribute* attr, const char* toMatch, RegularExpression* re) const
833 bool caseSensitive = attr->isCaseSensitive();
834 const vector<string>& vals = attr->getSerializedValues();
835 for (vector<string>::const_iterator v=vals.begin(); v!=vals.end(); ++v) {
837 auto_ptr<XMLCh> trans(fromUTF8(v->c_str()));
838 if (re->matches(trans.get())) {
839 request.log(SPRequest::SPDebug,
840 string("htAccessControl plugin expecting regexp ") + toMatch + ", got " + *v + ": authorization granted"
845 else if ((caseSensitive && *v == toMatch) || (!caseSensitive && !strcasecmp(v->c_str(), toMatch))) {
846 request.log(SPRequest::SPDebug,
847 string("htAccessControl plugin expecting ") + toMatch + ", got " + *v + ": authorization granted."
852 request.log(SPRequest::SPDebug,
853 string("htAccessControl plugin expecting ") + toMatch + ", got " + *v + ": authorization not granted."
860 bool htAccessControl::authorized(const SPRequest& request, const Session* session) const
862 // Make sure the object is our type.
863 const ShibTargetApache* sta=dynamic_cast<const ShibTargetApache*>(&request);
865 throw ConfigurationException("Request wrapper object was not of correct type.");
869 int m=sta->m_req->method_number;
870 bool method_restricted=false;
873 const array_header* reqs_arr=ap_requires(sta->m_req);
877 require_line* reqs=(require_line*)reqs_arr->elts;
879 ap_log_rerror(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(sta->m_req),"REQUIRE nelts: %d", reqs_arr->nelts);
880 ap_log_rerror(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(sta->m_req),"REQUIRE all: %d", sta->m_dc->bRequireAll);
882 vector<bool> auth_OK(reqs_arr->nelts,false);
884 #define SHIB_AP_CHECK_IS_OK { \
885 if (sta->m_dc->bRequireAll < 1) \
891 for (int x=0; x<reqs_arr->nelts; x++) {
893 if (!(reqs[x].method_mask & (1 << m)))
895 method_restricted=true;
896 string remote_user = request.getRemoteUser();
898 t = reqs[x].requirement;
899 w = ap_getword_white(sta->m_req->pool, &t);
901 if (!strcasecmp(w,"shibboleth")) {
902 // This is a dummy rule needed because Apache conflates authn and authz.
903 // Without some require rule, AuthType is ignored and no check_user hooks run.
906 else if (!strcmp(w,"valid-user")) {
908 request.log(SPRequest::SPDebug,"htAccessControl plugin accepting valid-user based on active session");
912 request.log(SPRequest::SPError,"htAccessControl plugin rejecting access for valid-user rule, no session is active");
914 else if (!strcmp(w,"user") && !remote_user.empty()) {
917 w=ap_getword_conf(sta->m_req->pool,&t);
925 // To do regex matching, we have to convert from UTF-8.
926 auto_ptr<XMLCh> trans(fromUTF8(w));
927 RegularExpression re(trans.get());
928 auto_ptr<XMLCh> trans2(fromUTF8(remote_user.c_str()));
929 if (re.matches(trans2.get())) {
930 request.log(SPRequest::SPDebug, string("htAccessControl plugin accepting user (") + w + ")");
934 catch (XMLException& ex) {
935 auto_ptr_char tmp(ex.getMessage());
936 request.log(SPRequest::SPError,
937 string("htAccessControl plugin caught exception while parsing regular expression (") + w + "): " + tmp.get());
940 else if (remote_user==w) {
941 request.log(SPRequest::SPDebug, string("htAccessControl plugin accepting user (") + w + ")");
946 else if (!strcmp(w,"group")) {
947 SH_AP_TABLE* grpstatus=NULL;
948 if (sta->m_dc->szAuthGrpFile && !remote_user.empty()) {
949 request.log(SPRequest::SPDebug,string("htAccessControl plugin using groups file: ") + sta->m_dc->szAuthGrpFile);
950 grpstatus=groups_for_user(sta->m_req,remote_user.c_str(),sta->m_dc->szAuthGrpFile);
956 w=ap_getword_conf(sta->m_req->pool,&t);
957 if (ap_table_get(grpstatus,w)) {
958 request.log(SPRequest::SPDebug, string("htAccessControl plugin accepting group (") + w + ")");
964 // Map alias in rule to the attribute.
966 request.log(SPRequest::SPError, "htAccessControl plugin not given a valid session to evaluate, are you using lazy sessions?");
970 // Find the attribute(s) matching the require rule.
971 pair<multimap<string,const Attribute*>::const_iterator,multimap<string,const Attribute*>::const_iterator> attrs =
972 session->getIndexedAttributes().equal_range(w);
973 if (attrs.first == attrs.second) {
974 request.log(SPRequest::SPWarn, string("htAccessControl rule requires attribute (") + w + "), not found in session");
980 while (!auth_OK[x] && *t) {
981 w=ap_getword_conf(sta->m_req->pool,&t);
988 auto_ptr<RegularExpression> re;
991 auto_ptr<XMLCh> trans(fromUTF8(w));
992 auto_ptr<xercesc::RegularExpression> temp(new xercesc::RegularExpression(trans.get()));
996 for (; !auth_OK[x] && attrs.first!=attrs.second; ++attrs.first) {
997 if (checkAttribute(request, attrs.first->second, w, regexp ? re.get() : NULL)) {
1002 catch (XMLException& ex) {
1003 auto_ptr_char tmp(ex.getMessage());
1004 request.log(SPRequest::SPError,
1005 string("htAccessControl plugin caught exception while parsing regular expression (") + w + "): " + tmp.get()
1012 // check if all require directives are true
1013 bool auth_all_OK = true;
1014 for (int i= 0; i<reqs_arr->nelts; i++) {
1015 auth_all_OK &= auth_OK[i];
1017 if (auth_all_OK || !method_restricted)
1024 // Initial look at a request - create the per-request structure
1025 static int shib_post_read(request_rec *r)
1027 shib_request_config* rc = init_request_config(r);
1029 ap_log_rerror(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(r), "shib_post_read");
1031 #ifdef SHIB_DEFERRED_HEADERS
1032 rc->hdr_out = ap_make_table(r->pool, 5);
1037 // fixups: set environment vars
1039 extern "C" int shib_fixups(request_rec* r)
1041 shib_request_config *rc = (shib_request_config*)ap_get_module_config(r->request_config, &mod_shib);
1042 shib_dir_config *dc = (shib_dir_config*)ap_get_module_config(r->per_dir_config, &mod_shib);
1043 if (dc->bOff==1 || dc->bUseEnvVars==0)
1046 ap_log_rerror(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(r), "shib_fixup(%d): ENTER", (int)getpid());
1048 if (rc==NULL || rc->env==NULL || ap_is_empty_table(rc->env))
1051 ap_log_rerror(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(r), "shib_fixup adding %d vars", ap_table_elts(rc->env)->nelts);
1052 r->subprocess_env = ap_overlay_tables(r->pool, r->subprocess_env, rc->env);
1057 #ifdef SHIB_APACHE_13
1060 * Cleanup the (per-process) pool info.
1062 extern "C" void shib_child_exit(server_rec* s, SH_AP_POOL* p)
1065 ap_log_error(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(s),"shib_child_exit(%d) dealing with g_Config..", (int)getpid());
1068 ap_log_error(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(s),"shib_child_exit() done");
1074 * Apache 2.x doesn't allow for per-child cleanup, causes CGI forks to hang.
1076 extern "C" apr_status_t shib_exit(void* data)
1082 ap_log_error(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,0,NULL,"shib_exit() done");
1088 * shire_child_init()
1089 * Things to do when the child process is initialized.
1090 * (or after the configs are read in apache-2)
1092 #ifdef SHIB_APACHE_13
1093 extern "C" void shib_child_init(server_rec* s, SH_AP_POOL* p)
1095 extern "C" void shib_child_init(apr_pool_t* p, server_rec* s)
1098 // Initialize runtime components.
1100 ap_log_error(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(s),"shib_child_init(%d) starting", (int)getpid());
1103 ap_log_error(APLOG_MARK,APLOG_ERR|APLOG_NOERRNO,SH_AP_R(s),"shib_child_init() already initialized!");
1107 g_Config=&SPConfig::getConfig();
1108 g_Config->setFeatures(
1109 SPConfig::Listener |
1111 SPConfig::RequestMapping |
1112 SPConfig::InProcess |
1115 if (!g_Config->init(g_szSchemaDir)) {
1116 ap_log_error(APLOG_MARK,APLOG_CRIT|APLOG_NOERRNO,SH_AP_R(s),"shib_child_init() failed to initialize libraries");
1119 g_Config->AccessControlManager.registerFactory(HT_ACCESS_CONTROL,&htAccessFactory);
1120 g_Config->RequestMapperManager.registerFactory(NATIVE_REQUEST_MAPPER,&ApacheRequestMapFactory);
1123 xercesc::DOMDocument* dummydoc=XMLToolingConfig::getConfig().getParser().newDocument();
1124 XercesJanitor<xercesc::DOMDocument> docjanitor(dummydoc);
1125 xercesc::DOMElement* dummy = dummydoc->createElementNS(NULL,path);
1126 auto_ptr_XMLCh src(g_szSHIBConfig);
1127 dummy->setAttributeNS(NULL,path,src.get());
1128 dummy->setAttributeNS(NULL,validate,xmlconstants::XML_ONE);
1130 g_Config->setServiceProvider(g_Config->ServiceProviderManager.newPlugin(XML_SERVICE_PROVIDER,dummy));
1131 g_Config->getServiceProvider()->init();
1133 catch (exception& ex) {
1134 ap_log_error(APLOG_MARK,APLOG_CRIT|APLOG_NOERRNO,SH_AP_R(s),ex.what());
1135 ap_log_error(APLOG_MARK,APLOG_CRIT|APLOG_NOERRNO,SH_AP_R(s),"shib_child_init() failed to load configuration");
1139 ServiceProvider* sp=g_Config->getServiceProvider();
1140 xmltooling::Locker locker(sp);
1141 const PropertySet* props=sp->getPropertySet("Local");
1143 pair<bool,const char*> unsetValue=props->getString("unsetHeaderValue");
1144 if (unsetValue.first)
1145 g_unsetHeaderValue = unsetValue.second;
1146 pair<bool,bool> checkSpoofing=props->getBool("checkSpoofing");
1147 if (checkSpoofing.first && !checkSpoofing.second)
1148 g_checkSpoofing = false;
1151 // Set the cleanup handler
1152 apr_pool_cleanup_register(p, NULL, &shib_exit, apr_pool_cleanup_null);
1154 ap_log_error(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(s),"shib_child_init() done");
1158 #ifdef SHIB_DEFERRED_HEADERS
1159 static void set_output_filter(request_rec *r)
1161 ap_add_output_filter("SHIB_HEADERS_OUT", NULL, r, r->connection);
1164 static void set_error_filter(request_rec *r)
1166 ap_add_output_filter("SHIB_HEADERS_ERR", NULL, r, r->connection);
1169 static int _table_add(void *v, const char *key, const char *value)
1171 apr_table_addn((apr_table_t*)v, key, value);
1175 static apr_status_t do_output_filter(ap_filter_t *f, apr_bucket_brigade *in)
1177 request_rec *r = f->r;
1178 shib_request_config *rc = (shib_request_config*) ap_get_module_config(r->request_config, &mod_shib);
1181 ap_log_rerror(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(r),"shib_out_filter: merging %d headers", apr_table_elts(rc->hdr_out)->nelts);
1182 apr_table_do(_table_add,r->headers_out, rc->hdr_out,NULL);
1183 // can't use overlap call because it will collapse Set-Cookie headers
1184 //apr_table_overlap(r->headers_out, rc->hdr_out, APR_OVERLAP_TABLES_MERGE);
1187 /* remove ourselves from the filter chain */
1188 ap_remove_output_filter(f);
1190 /* send the data up the stack */
1191 return ap_pass_brigade(f->next,in);
1194 static apr_status_t do_error_filter(ap_filter_t *f, apr_bucket_brigade *in)
1196 request_rec *r = f->r;
1197 shib_request_config *rc = (shib_request_config*) ap_get_module_config(r->request_config, &mod_shib);
1200 ap_log_rerror(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(r),"shib_err_filter: merging %d headers", apr_table_elts(rc->hdr_out)->nelts);
1201 apr_table_do(_table_add,r->err_headers_out, rc->hdr_out,NULL);
1202 // can't use overlap call because it will collapse Set-Cookie headers
1203 //apr_table_overlap(r->err_headers_out, rc->hdr_out, APR_OVERLAP_TABLES_MERGE);
1206 /* remove ourselves from the filter chain */
1207 ap_remove_output_filter(f);
1209 /* send the data up the stack */
1210 return ap_pass_brigade(f->next,in);
1212 #endif // SHIB_DEFERRED_HEADERS
1214 typedef const char* (*config_fn_t)(void);
1216 #ifdef SHIB_APACHE_13
1218 // SHIB Module commands
1220 static command_rec shire_cmds[] = {
1221 {"ShibConfig", (config_fn_t)ap_set_global_string_slot, &g_szSHIBConfig,
1222 RSRC_CONF, TAKE1, "Path to shibboleth.xml config file"},
1223 {"ShibCatalogs", (config_fn_t)ap_set_global_string_slot, &g_szSchemaDir,
1224 RSRC_CONF, TAKE1, "Paths of XML schema catalogs"},
1225 {"ShibSchemaDir", (config_fn_t)ap_set_global_string_slot, &g_szSchemaDir,
1226 RSRC_CONF, TAKE1, "Paths of XML schema catalogs (deprecated in favor of ShibCatalogs)"},
1228 {"ShibURLScheme", (config_fn_t)shib_set_server_string_slot,
1229 (void *) XtOffsetOf (shib_server_config, szScheme),
1230 RSRC_CONF, TAKE1, "URL scheme to force into generated URLs for a vhost"},
1232 {"ShibDisable", (config_fn_t)ap_set_flag_slot,
1233 (void *) XtOffsetOf (shib_dir_config, bOff),
1234 OR_AUTHCFG, FLAG, "Disable all Shib module activity here to save processing effort"},
1235 {"ShibApplicationId", (config_fn_t)ap_set_string_slot,
1236 (void *) XtOffsetOf (shib_dir_config, szApplicationId),
1237 OR_AUTHCFG, TAKE1, "Set Shibboleth applicationId property for content"},
1238 {"ShibBasicHijack", (config_fn_t)ap_set_flag_slot,
1239 (void *) XtOffsetOf (shib_dir_config, bBasicHijack),
1240 OR_AUTHCFG, FLAG, "Respond to AuthType Basic and convert to shibboleth"},
1241 {"ShibRequireSession", (config_fn_t)ap_set_flag_slot,
1242 (void *) XtOffsetOf (shib_dir_config, bRequireSession),
1243 OR_AUTHCFG, FLAG, "Initiates a new session if one does not exist"},
1244 {"ShibRequireSessionWith", (config_fn_t)ap_set_string_slot,
1245 (void *) XtOffsetOf (shib_dir_config, szRequireWith),
1246 OR_AUTHCFG, TAKE1, "Initiates a new session if one does not exist using a specific SessionInitiator"},
1247 {"ShibExportAssertion", (config_fn_t)ap_set_flag_slot,
1248 (void *) XtOffsetOf (shib_dir_config, bExportAssertion),
1249 OR_AUTHCFG, FLAG, "Export SAML attribute assertion(s) to Shib-Attributes header"},
1250 {"ShibRedirectToSSL", (config_fn_t)ap_set_string_slot,
1251 (void *) XtOffsetOf (shib_dir_config, szRedirectToSSL),
1252 OR_AUTHCFG, TAKE1, "Redirect non-SSL requests to designated port" },
1253 {"AuthGroupFile", (config_fn_t)shib_ap_set_file_slot,
1254 (void *) XtOffsetOf (shib_dir_config, szAuthGrpFile),
1255 OR_AUTHCFG, TAKE1, "text file containing group names and member user IDs"},
1256 {"ShibRequireAll", (config_fn_t)ap_set_flag_slot,
1257 (void *) XtOffsetOf (shib_dir_config, bRequireAll),
1258 OR_AUTHCFG, FLAG, "All require directives must match"},
1259 {"ShibUseEnvironment", (config_fn_t)ap_set_flag_slot,
1260 (void *) XtOffsetOf (shib_dir_config, bUseEnvVars),
1261 OR_AUTHCFG, FLAG, "Export attributes using environment variables (default)"},
1262 {"ShibUseHeaders", (config_fn_t)ap_set_flag_slot,
1263 (void *) XtOffsetOf (shib_dir_config, bUseHeaders),
1264 OR_AUTHCFG, FLAG, "Export attributes using custom HTTP headers"},
1270 handler_rec shib_handlers[] = {
1271 { "shib-handler", shib_handler },
1275 module MODULE_VAR_EXPORT mod_shib = {
1276 STANDARD_MODULE_STUFF,
1277 NULL, /* initializer */
1278 create_shib_dir_config, /* dir config creater */
1279 merge_shib_dir_config, /* dir merger --- default is to override */
1280 create_shib_server_config, /* server config */
1281 merge_shib_server_config, /* merge server config */
1282 shire_cmds, /* command table */
1283 shib_handlers, /* handlers */
1284 NULL, /* filename translation */
1285 shib_check_user, /* check_user_id */
1286 shib_auth_checker, /* check auth */
1287 NULL, /* check access */
1288 NULL, /* type_checker */
1289 shib_fixups, /* fixups */
1291 NULL, /* header parser */
1292 shib_child_init, /* child_init */
1293 shib_child_exit, /* child_exit */
1294 shib_post_read /* post read-request */
1297 #elif defined(SHIB_APACHE_20) || defined(SHIB_APACHE_22)
1299 extern "C" void shib_register_hooks (apr_pool_t *p)
1301 #ifdef SHIB_DEFERRED_HEADERS
1302 ap_register_output_filter("SHIB_HEADERS_OUT", do_output_filter, NULL, AP_FTYPE_CONTENT_SET);
1303 ap_hook_insert_filter(set_output_filter, NULL, NULL, APR_HOOK_LAST);
1304 ap_register_output_filter("SHIB_HEADERS_ERR", do_error_filter, NULL, AP_FTYPE_CONTENT_SET);
1305 ap_hook_insert_error_filter(set_error_filter, NULL, NULL, APR_HOOK_LAST);
1306 ap_hook_post_read_request(shib_post_read, NULL, NULL, APR_HOOK_MIDDLE);
1308 ap_hook_child_init(shib_child_init, NULL, NULL, APR_HOOK_MIDDLE);
1309 ap_hook_check_user_id(shib_check_user, NULL, NULL, APR_HOOK_MIDDLE);
1310 ap_hook_auth_checker(shib_auth_checker, NULL, NULL, APR_HOOK_FIRST);
1311 ap_hook_handler(shib_handler, NULL, NULL, APR_HOOK_LAST);
1312 ap_hook_fixups(shib_fixups, NULL, NULL, APR_HOOK_MIDDLE);
1315 // SHIB Module commands
1318 static command_rec shib_cmds[] = {
1319 AP_INIT_TAKE1("ShibConfig",
1320 (config_fn_t)ap_set_global_string_slot, &g_szSHIBConfig,
1321 RSRC_CONF, "Path to shibboleth.xml config file"),
1322 AP_INIT_TAKE1("ShibCatalogs",
1323 (config_fn_t)ap_set_global_string_slot, &g_szSchemaDir,
1324 RSRC_CONF, "Paths of XML schema catalogs"),
1325 AP_INIT_TAKE1("ShibSchemaDir",
1326 (config_fn_t)ap_set_global_string_slot, &g_szSchemaDir,
1327 RSRC_CONF, "Paths of XML schema catalogs (deprecated in favor of ShibCatalogs)"),
1329 AP_INIT_TAKE1("ShibURLScheme",
1330 (config_fn_t)shib_set_server_string_slot,
1331 (void *) offsetof (shib_server_config, szScheme),
1332 RSRC_CONF, "URL scheme to force into generated URLs for a vhost"),
1334 AP_INIT_FLAG("ShibDisable", (config_fn_t)ap_set_flag_slot,
1335 (void *) offsetof (shib_dir_config, bOff),
1336 OR_AUTHCFG, "Disable all Shib module activity here to save processing effort"),
1337 AP_INIT_TAKE1("ShibApplicationId", (config_fn_t)ap_set_string_slot,
1338 (void *) offsetof (shib_dir_config, szApplicationId),
1339 OR_AUTHCFG, "Set Shibboleth applicationId property for content"),
1340 AP_INIT_FLAG("ShibBasicHijack", (config_fn_t)ap_set_flag_slot,
1341 (void *) offsetof (shib_dir_config, bBasicHijack),
1342 OR_AUTHCFG, "Respond to AuthType Basic and convert to shibboleth"),
1343 AP_INIT_FLAG("ShibRequireSession", (config_fn_t)ap_set_flag_slot,
1344 (void *) offsetof (shib_dir_config, bRequireSession),
1345 OR_AUTHCFG, "Initiates a new session if one does not exist"),
1346 AP_INIT_TAKE1("ShibRequireSessionWith", (config_fn_t)ap_set_string_slot,
1347 (void *) offsetof (shib_dir_config, szRequireWith),
1348 OR_AUTHCFG, "Initiates a new session if one does not exist using a specific SessionInitiator"),
1349 AP_INIT_FLAG("ShibExportAssertion", (config_fn_t)ap_set_flag_slot,
1350 (void *) offsetof (shib_dir_config, bExportAssertion),
1351 OR_AUTHCFG, "Export SAML attribute assertion(s) to Shib-Attributes header"),
1352 AP_INIT_TAKE1("ShibRedirectToSSL", (config_fn_t)ap_set_string_slot,
1353 (void *) offsetof (shib_dir_config, szRedirectToSSL),
1354 OR_AUTHCFG, "Redirect non-SSL requests to designated port"),
1355 AP_INIT_TAKE1("AuthGroupFile", (config_fn_t)shib_ap_set_file_slot,
1356 (void *) offsetof (shib_dir_config, szAuthGrpFile),
1357 OR_AUTHCFG, "Text file containing group names and member user IDs"),
1358 AP_INIT_FLAG("ShibRequireAll", (config_fn_t)ap_set_flag_slot,
1359 (void *) offsetof (shib_dir_config, bRequireAll),
1360 OR_AUTHCFG, "All require directives must match"),
1361 AP_INIT_FLAG("ShibUseEnvironment", (config_fn_t)ap_set_flag_slot,
1362 (void *) offsetof (shib_dir_config, bUseEnvVars),
1363 OR_AUTHCFG, "Export attributes using environment variables (default)"),
1364 AP_INIT_FLAG("ShibUseHeaders", (config_fn_t)ap_set_flag_slot,
1365 (void *) offsetof (shib_dir_config, bUseHeaders),
1366 OR_AUTHCFG, "Export attributes using custom HTTP headers"),
1371 module AP_MODULE_DECLARE_DATA mod_shib = {
1372 STANDARD20_MODULE_STUFF,
1373 create_shib_dir_config, /* create dir config */
1374 merge_shib_dir_config, /* merge dir config --- default is to override */
1375 create_shib_server_config, /* create server config */
1376 merge_shib_server_config, /* merge server config */
1377 shib_cmds, /* command table */
1378 shib_register_hooks /* register hooks */
1382 #error "unsupported Apache version"