#include <xmltooling/util/XMLHelper.h>
#ifdef WIN32
-# include <winsock.h>
+# include <winsock2.h>
+# include <ws2tcpip.h>
#endif
#undef _XPG4_2
#include <apr_pools.h>
#endif
+#ifdef SHIB_APACHE_24
+#include <mod_auth.h>
+#endif
+
#include <cstddef>
#ifdef HAVE_UNISTD_H
#include <unistd.h> // for getpid()
using xercesc::RegularExpression;
using xercesc::XMLException;
-extern "C" module MODULE_VAR_EXPORT mod_shib;
+#ifdef APLOG_USE_MODULE
+ extern "C" module AP_MODULE_DECLARE_DATA mod_shib;
+ static int* const aplog_module_index = &(mod_shib.module_index);
+#else
+ extern "C" module MODULE_VAR_EXPORT mod_shib;
+#endif
namespace {
char* g_szSHIBConfig = nullptr;
Apache 2.0.49+ supports the filter method.
Apache 1.3.x and lesser 2.0.x must write the headers directly. */
-#if (defined(SHIB_APACHE_20) || defined(SHIB_APACHE_22)) && AP_MODULE_MAGIC_AT_LEAST(20020903,6)
+#if (defined(SHIB_APACHE_20) || defined(SHIB_APACHE_22) || defined(SHIB_APACHE_24)) && AP_MODULE_MAGIC_AT_LEAST(20020903,6)
#define SHIB_DEFERRED_HEADERS
#endif
SH_AP_TABLE* tSettings; // generic table of extensible settings
// RM Configuration
+#ifdef SHIB_APACHE_24
+ int bRequestMapperAuthz;// support RequestMapper AccessControl plugins
+#else
char* szAuthGrpFile; // Auth GroupFile name
+ char* szAccessControl; // path to "external" AccessControl plugin file
int bRequireAll; // all "known" require directives must match, otherwise OR logic
int bAuthoritative; // allow htaccess plugin to DECLINE when authz fails
+ int bCompatWith24; // support 2.4-reserved require logic for compatibility
+#endif
// Content Configuration
char* szApplicationId; // Shib applicationId value
char* szRequireWith; // require a session using a specific initiator?
char* szRedirectToSSL; // redirect non-SSL requests to SSL port
- char* szAccessControl; // path to "external" AccessControl plugin file
int bOff; // flat-out disable all Shib processing
int bBasicHijack; // activate for AuthType Basic?
int bRequireSession; // require a session?
{
shib_dir_config* dc=(shib_dir_config*)ap_pcalloc(p,sizeof(shib_dir_config));
dc->tSettings = nullptr;
+#ifdef SHIB_APACHE_24
+ dc->bRequestMapperAuthz = -1;
+#else
dc->szAuthGrpFile = nullptr;
+ dc->szAccessControl = nullptr;
dc->bRequireAll = -1;
dc->bAuthoritative = -1;
+ dc->bCompatWith24 = -1;
+#endif
dc->szApplicationId = nullptr;
dc->szRequireWith = nullptr;
dc->szRedirectToSSL = nullptr;
- dc->szAccessControl = nullptr;
dc->bOff = -1;
dc->bBasicHijack = -1;
dc->bRequireSession = -1;
dc->tSettings = ap_copy_table(p, child->tSettings);
}
+#ifdef SHIB_APACHE_24
+ dc->bRequestMapperAuthz = ((child->bRequestMapperAuthz==-1) ? parent->bRequestMapperAuthz : child->bRequestMapperAuthz);
+#else
if (child->szAuthGrpFile)
dc->szAuthGrpFile=ap_pstrdup(p,child->szAuthGrpFile);
else if (parent->szAuthGrpFile)
else
dc->szAuthGrpFile=nullptr;
+ if (child->szAccessControl)
+ dc->szAccessControl=ap_pstrdup(p,child->szAccessControl);
+ else if (parent->szAccessControl)
+ dc->szAccessControl=ap_pstrdup(p,parent->szAccessControl);
+ else
+ dc->szAccessControl=nullptr;
+#endif
+
if (child->szApplicationId)
dc->szApplicationId=ap_pstrdup(p,child->szApplicationId);
else if (parent->szApplicationId)
else
dc->szRedirectToSSL=nullptr;
- if (child->szAccessControl)
- dc->szAccessControl=ap_pstrdup(p,child->szAccessControl);
- else if (parent->szAccessControl)
- dc->szAccessControl=ap_pstrdup(p,parent->szAccessControl);
- else
- dc->szAccessControl=nullptr;
-
- dc->bOff=((child->bOff==-1) ? parent->bOff : child->bOff);
- dc->bBasicHijack=((child->bBasicHijack==-1) ? parent->bBasicHijack : child->bBasicHijack);
- dc->bRequireSession=((child->bRequireSession==-1) ? parent->bRequireSession : child->bRequireSession);
- dc->bExportAssertion=((child->bExportAssertion==-1) ? parent->bExportAssertion : child->bExportAssertion);
- dc->bRequireAll=((child->bRequireAll==-1) ? parent->bRequireAll : child->bRequireAll);
- dc->bAuthoritative=((child->bAuthoritative==-1) ? parent->bAuthoritative : child->bAuthoritative);
- dc->bUseEnvVars=((child->bUseEnvVars==-1) ? parent->bUseEnvVars : child->bUseEnvVars);
- dc->bUseHeaders=((child->bUseHeaders==-1) ? parent->bUseHeaders : child->bUseHeaders);
- dc->bExpireRedirects=((child->bExpireRedirects==-1) ? parent->bExpireRedirects : child->bExpireRedirects);
+ dc->bOff = ((child->bOff==-1) ? parent->bOff : child->bOff);
+ dc->bBasicHijack = ((child->bBasicHijack==-1) ? parent->bBasicHijack : child->bBasicHijack);
+ dc->bRequireSession = ((child->bRequireSession==-1) ? parent->bRequireSession : child->bRequireSession);
+ dc->bExportAssertion = ((child->bExportAssertion==-1) ? parent->bExportAssertion : child->bExportAssertion);
+#ifndef SHIB_APACHE_24
+ dc->bRequireAll = ((child->bRequireAll==-1) ? parent->bRequireAll : child->bRequireAll);
+ dc->bAuthoritative = ((child->bAuthoritative==-1) ? parent->bAuthoritative : child->bAuthoritative);
+ dc->bCompatWith24 = ((child->bCompatWith24==-1) ? parent->bCompatWith24 : child->bCompatWith24);
+#endif
+ dc->bUseEnvVars = ((child->bUseEnvVars==-1) ? parent->bUseEnvVars : child->bUseEnvVars);
+ dc->bUseHeaders = ((child->bUseHeaders==-1) ? parent->bUseHeaders : child->bUseHeaders);
+ dc->bExpireRedirects = ((child->bExpireRedirects==-1) ? parent->bExpireRedirects : child->bExpireRedirects);
return dc;
}
+class ShibTargetApache; // forward decl
+
// per-request module structure
struct shib_request_config
{
- SH_AP_TABLE *env; // environment vars
+ SH_AP_TABLE* env; // environment vars
#ifdef SHIB_DEFERRED_HEADERS
- SH_AP_TABLE *hdr_out; // headers to browser
+ SH_AP_TABLE* hdr_out; // headers to browser
+#endif
+#ifndef SHIB_APACHE_13
+ ShibTargetApache* sta; // SP per-request structure wrapped around Apache's request
#endif
};
// create a request record
-static shib_request_config *init_request_config(request_rec *r)
+static shib_request_config* init_request_config(request_rec *r)
{
- shib_request_config* rc=(shib_request_config*)ap_pcalloc(r->pool,sizeof(shib_request_config));
- ap_set_module_config (r->request_config, &mod_shib, rc);
+ shib_request_config* rc = (shib_request_config*)ap_pcalloc(r->pool,sizeof(shib_request_config));
memset(rc, 0, sizeof(shib_request_config));
- ap_log_rerror(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(r), "shib_init_rc");
+ ap_set_module_config(r->request_config, &mod_shib, rc);
+ ap_log_rerror(APLOG_MARK, APLOG_DEBUG|APLOG_NOERRNO, SH_AP_R(r), "shib_init_rc");
return rc;
}
-// generic global slot handlers
-extern "C" const char* ap_set_global_string_slot(cmd_parms* parms, void*, const char* arg)
-{
- *((char**)(parms->info))=ap_pstrdup(parms->pool,arg);
- return nullptr;
-}
-
-extern "C" const char* shib_set_server_string_slot(cmd_parms* parms, void*, const char* arg)
-{
- char* base=(char*)ap_get_module_config(parms->server->module_config,&mod_shib);
- size_t offset=(size_t)parms->info;
- *((char**)(base + offset))=ap_pstrdup(parms->pool,arg);
- return nullptr;
-}
-
-extern "C" const char* shib_ap_set_file_slot(cmd_parms* parms,
-#ifdef SHIB_APACHE_13
- char* arg1, char* arg2
-#else
- void* arg1, const char* arg2
-#endif
- )
-{
- ap_set_file_slot(parms, arg1, arg2);
- return DECLINE_CMD;
-}
-
-extern "C" const char* shib_table_set(cmd_parms* parms, shib_dir_config* dc, const char* arg1, const char* arg2)
-{
- if (!dc->tSettings)
- dc->tSettings = ap_make_table(parms->pool, 4);
- ap_table_set(dc->tSettings, arg1, arg2);
- return nullptr;
-}
-
-extern "C" const char* shib_set_acl_slot(cmd_parms* params, shib_dir_config* dc, char* arg)
-{
- bool absolute;
- switch (*arg) {
- case 0:
- absolute = false;
- break;
- case '/':
- case '\\':
- absolute = true;
- break;
- case '.':
- absolute = (*(arg+1) == '.' || *(arg+1) == '/' || *(arg+1) == '\\');
- break;
- default:
- absolute = *(arg+1) == ':';
- }
-
- if (absolute || !params->path)
- dc->szAccessControl = ap_pstrdup(params->pool, arg);
- else
- dc->szAccessControl = ap_pstrcat(params->pool, params->path, arg);
- return nullptr;
-}
-
class ShibTargetApache : public AbstractSPRequest
#if defined(SHIBSP_HAVE_GSSAPI) && !defined(SHIB_APACHE_13)
, public GSSRequest
#endif
{
- bool m_handler;
mutable string m_body;
mutable bool m_gotBody,m_firsttime;
mutable vector<string> m_certs;
set<string> m_allhttp;
public:
+ bool m_handler;
request_rec* m_req;
shib_dir_config* m_dc;
shib_server_config* m_sc;
shib_request_config* m_rc;
- ShibTargetApache(request_rec* req, bool handler, bool shib_check_user)
- : AbstractSPRequest(SHIBSP_LOGCAT".Apache"), m_handler(handler), m_gotBody(false),m_firsttime(true) {
- m_sc = (shib_server_config*)ap_get_module_config(req->server->module_config, &mod_shib);
- m_dc = (shib_dir_config*)ap_get_module_config(req->per_dir_config, &mod_shib);
- m_rc = (shib_request_config*)ap_get_module_config(req->request_config, &mod_shib);
- m_req = req;
+ ShibTargetApache(request_rec* req) : AbstractSPRequest(SHIBSP_LOGCAT".Apache"),
+ m_gotBody(false),m_firsttime(true), m_handler(false), m_req(req), m_dc(nullptr), m_sc(nullptr), m_rc(nullptr) {
+ }
+ virtual ~ShibTargetApache() {}
+
+ bool isInitialized() const {
+ return (m_sc != nullptr);
+ }
+
+ bool init(bool handler, bool check_user) {
+ m_handler = handler;
+ if (m_sc)
+ return !check_user; // only initialize once
+ m_sc = (shib_server_config*)ap_get_module_config(m_req->server->module_config, &mod_shib);
+ m_dc = (shib_dir_config*)ap_get_module_config(m_req->per_dir_config, &mod_shib);
+ m_rc = (shib_request_config*)ap_get_module_config(m_req->request_config, &mod_shib);
setRequestURI(m_req->unparsed_uri);
- if (shib_check_user && m_dc->bUseHeaders == 1) {
+ if (check_user && m_dc->bUseHeaders == 1) {
// Try and see if this request was already processed, to skip spoof checking.
if (!ap_is_initial_req(m_req)) {
m_firsttime = false;
else if (!g_spoofKey.empty()) {
const char* hdr = ap_table_get(m_req->headers_in, "Shib-Spoof-Check");
if (hdr && g_spoofKey == hdr)
- m_firsttime=false;
+ m_firsttime = false;
}
-
if (!m_firsttime)
log(SPDebug, "shib_check_user running more than once");
}
+ return true;
}
- virtual ~ShibTargetApache() {}
const char* getScheme() const {
return m_sc->szScheme ? m_sc->szScheme : ap_http_method(m_req);
}
string getRemoteAddr() const {
string ret = AbstractSPRequest::getRemoteAddr();
- return ret.empty() ? m_req->connection->remote_ip : ret;
+ if (!ret.empty())
+ return ret;
+#ifdef SHIB_APACHE_24
+ return m_req->useragent_ip;
+#else
+ return m_req->connection->remote_ip;
+#endif
}
void log(SPLogLevel level, const string& msg) const {
AbstractSPRequest::log(level,msg);
in.read(buf,1024);
ap_rwrite(buf,in.gcount(),m_req);
}
-#if (defined(SHIB_APACHE_20) || defined(SHIB_APACHE_22))
+#if (defined(SHIB_APACHE_20) || defined(SHIB_APACHE_22) || defined(SHIB_APACHE_24))
if (status != XMLTOOLING_HTTP_STATUS_OK && status != XMLTOOLING_HTTP_STATUS_ERROR)
return status;
#endif
};
/********************************************************************************/
-// Apache handlers
+// Apache hooks
-extern "C" int shib_check_user(request_rec* r)
+#ifndef SHIB_APACHE_13
+extern "C" apr_status_t shib_request_cleanup(void* r)
{
- // Short-circuit entirely?
- if (((shib_dir_config*)ap_get_module_config(r->per_dir_config, &mod_shib))->bOff==1)
+ if (r)
+ delete reinterpret_cast<ShibTargetApache*>(r);
+ return APR_SUCCESS;
+}
+#endif
+
+// Initial look at a request - create the per-request structure
+static int shib_post_read(request_rec *r)
+{
+ shib_request_config* rc = init_request_config(r);
+#ifdef SHIB_APACHE_24
+ rc->sta = new ShibTargetApache(r);
+ apr_pool_cleanup_register(r->pool, rc->sta, shib_request_cleanup, apr_pool_cleanup_null);
+#endif
return DECLINED;
+}
- ap_log_rerror(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(r), "shib_check_user(%d): ENTER", (int)getpid());
+// Performs authentication and enforce session requirements.
+// Also does header/env export from session, and will dispatch
+// SP handler requests if it detects a handler URL.
+extern "C" int shib_check_user(request_rec* r)
+{
+ // Short-circuit entirely?
+ if (((shib_dir_config*)ap_get_module_config(r->per_dir_config, &mod_shib))->bOff == 1)
+ return DECLINED;
- string threadid("[");
- threadid += lexical_cast<string>(getpid()) + "] shib_check_user";
- xmltooling::NDC ndc(threadid.c_str());
+ ap_log_rerror(APLOG_MARK, APLOG_DEBUG|APLOG_NOERRNO, SH_AP_R(r), "shib_check_user(%d): ENTER", (int)getpid());
- try {
- ShibTargetApache sta(r,false,true);
+ string threadid("[");
+ threadid += lexical_cast<string>(getpid()) + "] shib_check_user";
+ xmltooling::NDC ndc(threadid.c_str());
- // Check user authentication and export information, then set the handler bypass
- pair<bool,long> res = sta.getServiceProvider().doAuthentication(sta,true);
- apr_pool_userdata_setn((const void*)42,g_UserDataKey,nullptr,r->pool);
- // If directed, install a spoof key to recognize when we've already cleared headers.
- if (!g_spoofKey.empty() && (((shib_dir_config*)ap_get_module_config(r->per_dir_config, &mod_shib))->bUseHeaders==1))
- ap_table_set(r->headers_in, "Shib-Spoof-Check", g_spoofKey.c_str());
- if (res.first) return res.second;
+ try {
+#ifndef SHIB_APACHE_24
+ ShibTargetApache sta(r);
+ ShibTargetApache* psta = &sta;
+#else
+ shib_request_config* rc = (shib_request_config*)ap_get_module_config(r->request_config, &mod_shib);
+ if (!rc || !rc->sta) {
+ ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, SH_AP_R(r), "shib_check_user found no per-request structure");
+ return SERVER_ERROR;
+ }
+ ShibTargetApache* psta = rc->sta;
+#endif
+ if (!psta->init(false, true)) {
+ ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, SH_AP_R(r), "shib_check_user unable to initialize SP request object");
+ return SERVER_ERROR;
+ }
- // user auth was okay -- export the assertions now
- res = sta.getServiceProvider().doExport(sta);
- if (res.first) return res.second;
+ // Check user authentication and export information, then set the handler bypass
+ pair<bool,long> res = psta->getServiceProvider().doAuthentication(*psta, true);
+ apr_pool_userdata_setn((const void*)42,g_UserDataKey,nullptr,r->pool);
+ // If directed, install a spoof key to recognize when we've already cleared headers.
+ if (!g_spoofKey.empty() && (((shib_dir_config*)ap_get_module_config(r->per_dir_config, &mod_shib))->bUseHeaders==1))
+ ap_table_set(r->headers_in, "Shib-Spoof-Check", g_spoofKey.c_str());
+ if (res.first) {
+#ifdef SHIB_APACHE_24
+ // This is insane, but Apache's internal request.c logic insists that an auth module
+ // returning OK MUST set r->user to avoid a failure. But they check for NULL and not
+ // for an empty string. If this turns out to cause trouble, there's no solution except
+ // to set a dummy ID any time it's not set.
+ if (res.second == OK && !r->user)
+ r->user = "";
+#endif
+ return res.second;
+ }
- // export happened successfully.. this user is ok.
- return OK;
- }
- catch (std::exception& e) {
- ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, SH_AP_R(r), "shib_check_user threw an exception: %s", e.what());
- return SERVER_ERROR;
- }
- catch (...) {
- ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, SH_AP_R(r), "shib_check_user threw an unknown exception!");
- if (g_catchAll)
- return SERVER_ERROR;
- throw;
- }
+ // user auth was okay -- export the session data now
+ res = psta->getServiceProvider().doExport(*psta);
+ if (res.first) {
+#ifdef SHIB_APACHE_24
+ // See above for explanation of this hack.
+ if (res.second == OK && !r->user)
+ r->user = "";
+#endif
+ return res.second;
+ }
+
+#ifdef SHIB_APACHE_24
+ // See above for explanation of this hack.
+ if (!r->user)
+ r->user = "";
+#endif
+ return OK;
+ }
+ catch (std::exception& e) {
+ ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, SH_AP_R(r), "shib_check_user threw an exception: %s", e.what());
+ return SERVER_ERROR;
+ }
+ catch (...) {
+ ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, SH_AP_R(r), "shib_check_user threw an unknown exception!");
+ if (g_catchAll)
+ return SERVER_ERROR;
+ throw;
+ }
}
+// Runs SP handler requests when invoked directly.
extern "C" int shib_handler(request_rec* r)
{
- // Short-circuit entirely?
- if (((shib_dir_config*)ap_get_module_config(r->per_dir_config, &mod_shib))->bOff==1)
- return DECLINED;
+ // Short-circuit entirely?
+ if (((shib_dir_config*)ap_get_module_config(r->per_dir_config, &mod_shib))->bOff == 1)
+ return DECLINED;
- string threadid("[");
- threadid += lexical_cast<string>(getpid()) + "] shib_handler";
- xmltooling::NDC ndc(threadid.c_str());
+ string threadid("[");
+ threadid += lexical_cast<string>(getpid()) + "] shib_handler";
+ xmltooling::NDC ndc(threadid.c_str());
#ifndef SHIB_APACHE_13
- // With 2.x, this handler always runs, though last.
- // We check if shib_check_user ran, because it will detect a handler request
- // and dispatch it directly.
- void* data;
- apr_pool_userdata_get(&data,g_UserDataKey,r->pool);
- if (data==(const void*)42) {
- ap_log_rerror(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(r),"shib_handler skipped since check_user ran");
- return DECLINED;
- }
+ // With 2.x, this handler always runs, though last.
+ // We check if shib_check_user ran, because it will detect a handler request
+ // and dispatch it directly.
+ void* data;
+ apr_pool_userdata_get(&data,g_UserDataKey,r->pool);
+ if (data==(const void*)42) {
+ ap_log_rerror(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(r),"shib_handler skipped since check_user ran");
+ return DECLINED;
+ }
#endif
- ap_log_rerror(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(r),"shib_handler(%d): ENTER: %s", (int)getpid(), r->handler);
+ ap_log_rerror(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(r),"shib_handler(%d): ENTER: %s", (int)getpid(), r->handler);
- try {
- ShibTargetApache sta(r,true,false);
+ try {
+#ifndef SHIB_APACHE_24
+ ShibTargetApache sta(r);
+ ShibTargetApache* psta = &sta;
+#else
+ shib_request_config* rc = (shib_request_config*)ap_get_module_config(r->request_config, &mod_shib);
+ if (!rc || !rc->sta) {
+ ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, SH_AP_R(r), "shib_handler found no per-request structure");
+ return SERVER_ERROR;
+ }
+ ShibTargetApache* psta = rc->sta;
+#endif
+ if (!psta->init(true, false)) {
+ ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, SH_AP_R(r), "shib_handler unable to initialize SP request object");
+ return SERVER_ERROR;
+ }
- pair<bool,long> res = sta.getServiceProvider().doHandler(sta);
- if (res.first) return res.second;
+ pair<bool,long> res = psta->getServiceProvider().doHandler(*psta);
+ if (res.first) return res.second;
- ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, SH_AP_R(r), "doHandler() did not do anything.");
- return SERVER_ERROR;
- }
- catch (std::exception& e) {
- ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, SH_AP_R(r), "shib_handler threw an exception: %s", e.what());
- return SERVER_ERROR;
- }
- catch (...) {
- ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, SH_AP_R(r), "shib_handler threw an unknown exception!");
- if (g_catchAll)
- return SERVER_ERROR;
- throw;
- }
+ ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, SH_AP_R(r), "doHandler() did not do anything.");
+ return SERVER_ERROR;
+ }
+ catch (std::exception& e) {
+ ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, SH_AP_R(r), "shib_handler threw an exception: %s", e.what());
+ return SERVER_ERROR;
+ }
+ catch (...) {
+ ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, SH_AP_R(r), "shib_handler threw an unknown exception!");
+ if (g_catchAll)
+ return SERVER_ERROR;
+ throw;
+ }
}
-/*
- * shib_auth_checker() -- a simple resource manager to
- * process the .htaccess settings
- */
+// This performs authorization functions to limit access.
+// On all versions, this runs any RequestMap-attached plugins.
+// For pre-2.4 versions, the RequestMap will always find an htAccess plugin
+// that runs code to parse and enforce Apache Require rules.
+// On 2.4, we have to short-circuit that and let Apache run callbacks
+// for each Require rule we handle.
extern "C" int shib_auth_checker(request_rec* r)
{
- // Short-circuit entirely?
- if (((shib_dir_config*)ap_get_module_config(r->per_dir_config, &mod_shib))->bOff==1)
- return DECLINED;
+ // Short-circuit entirely?
+ shib_dir_config* dc = (shib_dir_config*)ap_get_module_config(r->per_dir_config, &mod_shib);
+ if (dc->bOff == 1
+#ifdef SHIB_APACHE_24
+ || dc->bRequestMapperAuthz == 0 // this allows for bypass of the full auth_checker hook if only htaccess is used
+#endif
+ ) {
+ return DECLINED;
+ }
- ap_log_rerror(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(r), "shib_auth_checker(%d): ENTER", (int)getpid());
+ ap_log_rerror(APLOG_MARK, APLOG_DEBUG|APLOG_NOERRNO, SH_AP_R(r), "shib_auth_checker(%d): ENTER", (int)getpid());
- string threadid("[");
- threadid += lexical_cast<string>(getpid()) + "] shib_auth_checker";
- xmltooling::NDC ndc(threadid.c_str());
+ string threadid("[");
+ threadid += lexical_cast<string>(getpid()) + "] shib_auth_checker";
+ xmltooling::NDC ndc(threadid.c_str());
+
+ try {
+#ifndef SHIB_APACHE_24
+ ShibTargetApache sta(r);
+ ShibTargetApache* psta = &sta;
+#else
+ shib_request_config* rc = (shib_request_config*)ap_get_module_config(r->request_config, &mod_shib);
+ if (!rc || !rc->sta) {
+ ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, SH_AP_R(r), "shib_auth_checker found no per-request structure");
+ return SERVER_ERROR;
+ }
+ ShibTargetApache* psta = rc->sta;
+#endif
+ if (!psta->init(false, false)) {
+ ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, SH_AP_R(r), "shib_auth_checker unable to initialize SP request object");
+ return SERVER_ERROR;
+ }
- try {
- ShibTargetApache sta(r,false,false);
+ pair<bool,long> res = psta->getServiceProvider().doAuthorization(*psta);
+ if (res.first) return res.second;
- pair<bool,long> res = sta.getServiceProvider().doAuthorization(sta);
- if (res.first) return res.second;
+ // The SP method should always return true, so if we get this far, something unusual happened.
+ // Just let Apache (or some other module) decide what to do.
+ return DECLINED;
+ }
+ catch (std::exception& e) {
+ ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, SH_AP_R(r), "shib_auth_checker threw an exception: %s", e.what());
+ return SERVER_ERROR;
+ }
+ catch (...) {
+ ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, SH_AP_R(r), "shib_auth_checker threw an unknown exception!");
+ if (g_catchAll)
+ return SERVER_ERROR;
+ throw;
+ }
+}
- // The SP method should always return true, so if we get this far, something unusual happened.
- // Just let Apache (or some other module) decide what to do.
+// Overlays environment variables on top of subprocess table.
+extern "C" int shib_fixups(request_rec* r)
+{
+ shib_dir_config *dc = (shib_dir_config*)ap_get_module_config(r->per_dir_config, &mod_shib);
+ if (dc->bOff==1 || dc->bUseEnvVars==0)
return DECLINED;
- }
- catch (std::exception& e) {
- ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, SH_AP_R(r), "shib_auth_checker threw an exception: %s", e.what());
- return SERVER_ERROR;
- }
- catch (...) {
- ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, SH_AP_R(r), "shib_auth_checker threw an unknown exception!");
- if (g_catchAll)
- return SERVER_ERROR;
- throw;
- }
+
+ ap_log_rerror(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(r), "shib_fixup(%d): ENTER", (int)getpid());
+
+ shib_request_config *rc = (shib_request_config*)ap_get_module_config(r->request_config, &mod_shib);
+ if (rc==nullptr || rc->env==nullptr || ap_is_empty_table(rc->env))
+ return DECLINED;
+
+ ap_log_rerror(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(r), "shib_fixup adding %d vars", ap_table_elts(rc->env)->nelts);
+ r->subprocess_env = ap_overlay_tables(r->pool, r->subprocess_env, rc->env);
+
+ return OK;
}
-// Access control plugin that enforces htaccess rules
+
+// Access control plugin that enforces pre-2.4 htaccess rules.
+// Post-2.4, we have to register individual methods to respond
+// to each require rule we want to handle, and have those call
+// into these methods directly.
class htAccessControl : virtual public AccessControl
{
public:
Lockable* lock() {return this;}
void unlock() {}
aclresult_t authorized(const SPRequest& request, const Session* session) const;
+
+ aclresult_t doAccessControl(const ShibTargetApache& sta, const Session* session, const char* plugin) const;
+ aclresult_t doUser(const ShibTargetApache& sta, const char* params) const;
+#ifndef SHIB_APACHE_24
+ aclresult_t doGroup(const ShibTargetApache& sta, const char* params) const;
+#endif
+ aclresult_t doAuthnContext(const ShibTargetApache& sta, const char* acRef, const char* params) const;
+ aclresult_t doShibAttr(const ShibTargetApache& sta, const Session* session, const char* rule, const char* params) const;
+
private:
bool checkAttribute(const SPRequest& request, const Attribute* attr, const char* toMatch, RegularExpression* re) const;
};
return new htAccessControl();
}
-class ApacheRequestMapper : public virtual RequestMapper, public virtual PropertySet
-{
-public:
- ApacheRequestMapper(const xercesc::DOMElement* e);
- ~ApacheRequestMapper() {}
- Lockable* lock() { return m_mapper->lock(); }
- void unlock() { m_staKey->setData(nullptr); m_propsKey->setData(nullptr); m_mapper->unlock(); }
- Settings getSettings(const HTTPRequest& request) const;
-
- const PropertySet* getParent() const { return nullptr; }
- void setParent(const PropertySet*) {}
- pair<bool,bool> getBool(const char* name, const char* ns=nullptr) const;
- pair<bool,const char*> getString(const char* name, const char* ns=nullptr) const;
- pair<bool,const XMLCh*> getXMLString(const char* name, const char* ns=nullptr) const;
- pair<bool,unsigned int> getUnsignedInt(const char* name, const char* ns=nullptr) const;
- pair<bool,int> getInt(const char* name, const char* ns=nullptr) const;
- void getAll(map<string,const char*>& properties) const;
- const PropertySet* getPropertySet(const char* name, const char* ns=shibspconstants::ASCII_SHIB2SPCONFIG_NS) const;
- const xercesc::DOMElement* getElement() const;
-
-private:
- scoped_ptr<RequestMapper> m_mapper;
- scoped_ptr<ThreadKey> m_staKey,m_propsKey;
- mutable htAccessControl m_htaccess;
-};
-
-RequestMapper* ApacheRequestMapFactory(const xercesc::DOMElement* const & e)
+AccessControl::aclresult_t htAccessControl::doAccessControl(const ShibTargetApache& sta, const Session* session, const char* plugin) const
{
- return new ApacheRequestMapper(e);
+ aclresult_t result = shib_acl_false;
+ try {
+ ifstream aclfile(plugin);
+ if (!aclfile)
+ throw ConfigurationException("Unable to open access control file ($1).", params(1, plugin));
+ xercesc::DOMDocument* acldoc = XMLToolingConfig::getConfig().getParser().parse(aclfile);
+ XercesJanitor<xercesc::DOMDocument> docjanitor(acldoc);
+ static XMLCh _type[] = UNICODE_LITERAL_4(t,y,p,e);
+ string t(XMLHelper::getAttrString(acldoc ? acldoc->getDocumentElement() : nullptr, nullptr, _type));
+ if (t.empty())
+ throw ConfigurationException("Missing type attribute in AccessControl plugin configuration.");
+ scoped_ptr<AccessControl> aclplugin(SPConfig::getConfig().AccessControlManager.newPlugin(t.c_str(), acldoc->getDocumentElement()));
+ Locker acllock(aclplugin.get());
+ result = aclplugin->authorized(sta, session);
+ }
+ catch (std::exception& ex) {
+ sta.log(SPRequest::SPError, ex.what());
+ }
+ return result;
}
-ApacheRequestMapper::ApacheRequestMapper(const xercesc::DOMElement* e)
- : m_mapper(SPConfig::getConfig().RequestMapperManager.newPlugin(XML_REQUEST_MAPPER,e)),
- m_staKey(ThreadKey::create(nullptr)), m_propsKey(ThreadKey::create(nullptr))
+AccessControl::aclresult_t htAccessControl::doUser(const ShibTargetApache& sta, const char* params) const
{
-}
+ bool regexp = false;
+ bool negated = false;
+ while (*params) {
+ const char* w = ap_getword_conf(sta.m_req->pool, ¶ms);
+ if (*w == '~') {
+ regexp = true;
+ continue;
+ }
+ else if (*w == '!') {
+ // A negated rule presumes success unless a match is found.
+ negated = true;
+ if (*(w+1) == '~')
+ regexp = true;
+ continue;
+ }
-RequestMapper::Settings ApacheRequestMapper::getSettings(const HTTPRequest& request) const
-{
- Settings s = m_mapper->getSettings(request);
- m_staKey->setData((void*)dynamic_cast<const ShibTargetApache*>(&request));
- m_propsKey->setData((void*)s.first);
- return pair<const PropertySet*,AccessControl*>(this, s.second ? s.second : &m_htaccess);
-}
+ // Figure out if there's a match.
+ bool match = false;
+ if (regexp) {
+ try {
+ // To do regex matching, we have to convert from UTF-8.
+ auto_arrayptr<XMLCh> trans(fromUTF8(w));
+ RegularExpression re(trans.get());
+ auto_arrayptr<XMLCh> trans2(fromUTF8(sta.getRemoteUser().c_str()));
+ match = re.matches(trans2.get());
+ }
+ catch (XMLException& ex) {
+ auto_ptr_char tmp(ex.getMessage());
+ sta.log(SPRequest::SPError,
+ string("htaccess plugin caught exception while parsing regular expression (") + w + "): " + tmp.get());
+ }
+ }
+ else if (sta.getRemoteUser() == w) {
+ match = true;
+ }
-pair<bool,bool> ApacheRequestMapper::getBool(const char* name, const char* ns) const
-{
- const ShibTargetApache* sta=reinterpret_cast<const ShibTargetApache*>(m_staKey->getData());
- const PropertySet* s=reinterpret_cast<const PropertySet*>(m_propsKey->getData());
- if (sta && !ns) {
- // Override Apache-settable boolean properties.
- if (name && !strcmp(name,"requireSession") && sta->m_dc->bRequireSession != -1)
- return make_pair(true, sta->m_dc->bRequireSession==1);
- else if (name && !strcmp(name,"exportAssertion") && sta->m_dc->bExportAssertion != -1)
- return make_pair(true, sta->m_dc->bExportAssertion==1);
- else if (sta->m_dc->tSettings) {
- const char* prop = ap_table_get(sta->m_dc->tSettings, name);
- if (prop)
- return make_pair(true, !strcmp(prop, "true") || !strcmp(prop, "1") || !strcmp(prop, "On"));
+ if (match) {
+ if (sta.isPriorityEnabled(SPRequest::SPDebug))
+ sta.log(SPRequest::SPDebug,
+ string("htaccess: require user ") + (negated ? "rejecting (" : "accepting (") + sta.getRemoteUser() + ")");
+ return (negated ? shib_acl_false : shib_acl_true);
}
}
- return s ? s->getBool(name,ns) : make_pair(false,false);
+ return (negated ? shib_acl_true : shib_acl_false);
}
-pair<bool,const char*> ApacheRequestMapper::getString(const char* name, const char* ns) const
+#ifndef SHIB_APACHE_24
+static SH_AP_TABLE* groups_for_user(request_rec* r, const char* user, char* grpfile)
{
- const ShibTargetApache* sta=reinterpret_cast<const ShibTargetApache*>(m_staKey->getData());
- const PropertySet* s=reinterpret_cast<const PropertySet*>(m_propsKey->getData());
- if (sta && !ns) {
+ SH_AP_CONFIGFILE* f;
+ SH_AP_TABLE* grps=ap_make_table(r->pool,15);
+ char l[MAX_STRING_LEN];
+ const char *group_name, *ll, *w;
+
+#ifdef SHIB_APACHE_13
+ if (!(f=ap_pcfg_openfile(r->pool,grpfile))) {
+#else
+ if (ap_pcfg_openfile(&f,r->pool,grpfile) != APR_SUCCESS) {
+#endif
+ ap_log_rerror(APLOG_MARK,APLOG_DEBUG,SH_AP_R(r),"groups_for_user() could not open group file: %s\n",grpfile);
+ return nullptr;
+ }
+
+ SH_AP_POOL* sp;
+#ifdef SHIB_APACHE_13
+ sp=ap_make_sub_pool(r->pool);
+#else
+ if (apr_pool_create(&sp,r->pool) != APR_SUCCESS) {
+ ap_log_rerror(APLOG_MARK,APLOG_ERR,0,r,
+ "groups_for_user() could not create a subpool");
+ return nullptr;
+ }
+#endif
+
+ while (!(ap_cfg_getline(l,MAX_STRING_LEN,f))) {
+ if ((*l=='#') || (!*l))
+ continue;
+ ll = l;
+ ap_clear_pool(sp);
+ group_name = ap_getword(sp,&ll,':');
+ while (*ll) {
+ w=ap_getword_conf(sp,&ll);
+ if (!strcmp(w,user)) {
+ ap_table_setn(grps,ap_pstrdup(r->pool,group_name),"in");
+ break;
+ }
+ }
+ }
+ ap_cfg_closefile(f);
+ ap_destroy_pool(sp);
+ return grps;
+}
+
+AccessControl::aclresult_t htAccessControl::doGroup(const ShibTargetApache& sta, const char* params) const
+{
+ SH_AP_TABLE* grpstatus = nullptr;
+ if (sta.m_dc->szAuthGrpFile) {
+ if (sta.isPriorityEnabled(SPRequest::SPDebug))
+ sta.log(SPRequest::SPDebug, string("htaccess plugin using groups file: ") + sta.m_dc->szAuthGrpFile);
+ grpstatus = groups_for_user(sta.m_req, sta.getRemoteUser().c_str(), sta.m_dc->szAuthGrpFile);
+ }
+
+ bool negated = false;
+ while (*params) {
+ const char* w = ap_getword_conf(sta.m_req->pool, ¶ms);
+ if (*w == '!') {
+ // A negated rule presumes success unless a match is found.
+ negated = true;
+ continue;
+ }
+
+ if (grpstatus && ap_table_get(grpstatus, w)) {
+ // If we matched, then we're done with this rule either way and we flip status to reflect the outcome.
+ sta.log(SPRequest::SPDebug, string("htaccess: require group ") + (negated ? "rejecting (" : "accepting (") + w + ")");
+ return (negated ? shib_acl_false : shib_acl_true);
+ }
+ }
+
+ return (negated ? shib_acl_true : shib_acl_false);
+}
+#endif
+
+AccessControl::aclresult_t htAccessControl::doAuthnContext(const ShibTargetApache& sta, const char* ref, const char* params) const
+{
+ if (ref && *ref) {
+ bool regexp = false;
+ bool negated = false;
+ while (ref && *params) {
+ const char* w = ap_getword_conf(sta.m_req->pool, ¶ms);
+ if (*w == '~') {
+ regexp = true;
+ continue;
+ }
+ else if (*w == '!') {
+ // A negated rule presumes success unless a match is found.
+ negated = true;
+ if (*(w+1) == '~')
+ regexp = true;
+ continue;
+ }
+
+ // Figure out if there's a match.
+ bool match = false;
+ if (regexp) {
+ try {
+ RegularExpression re(w);
+ match = re.matches(ref);
+ }
+ catch (XMLException& ex) {
+ auto_ptr_char tmp(ex.getMessage());
+ sta.log(SPRequest::SPError,
+ string("htaccess plugin caught exception while parsing regular expression (") + w + "): " + tmp.get());
+ }
+ }
+ else if (!strcmp(w, ref)) {
+ match = true;
+ }
+
+ if (match) {
+ if (sta.isPriorityEnabled(SPRequest::SPDebug))
+ sta.log(SPRequest::SPDebug,
+ string("htaccess: require authnContext ") + (negated ? "rejecting (" : "accepting (") + ref + ")");
+ return (negated ? shib_acl_false : shib_acl_true);
+ }
+ }
+ return (negated ? shib_acl_true : shib_acl_false);
+ }
+
+ if (sta.isPriorityEnabled(SPRequest::SPDebug))
+ sta.log(SPRequest::SPDebug, "htaccess: require authnContext rejecting session with no context associated");
+ return shib_acl_false;
+}
+
+bool htAccessControl::checkAttribute(const SPRequest& request, const Attribute* attr, const char* toMatch, RegularExpression* re) const
+{
+ bool caseSensitive = attr->isCaseSensitive();
+ const vector<string>& vals = attr->getSerializedValues();
+ for (vector<string>::const_iterator v = vals.begin(); v != vals.end(); ++v) {
+ if (re) {
+ auto_arrayptr<XMLCh> trans(fromUTF8(v->c_str()));
+ if (re->matches(trans.get())) {
+ if (request.isPriorityEnabled(SPRequest::SPDebug))
+ request.log(SPRequest::SPDebug, string("htaccess: expecting regexp ") + toMatch + ", got " + *v + ": acccepted");
+ return true;
+ }
+ }
+ else if ((caseSensitive && *v == toMatch) || (!caseSensitive && !strcasecmp(v->c_str(), toMatch))) {
+ if (request.isPriorityEnabled(SPRequest::SPDebug))
+ request.log(SPRequest::SPDebug, string("htaccess: expecting ") + toMatch + ", got " + *v + ": accepted");
+ return true;
+ }
+ else if (request.isPriorityEnabled(SPRequest::SPDebug)) {
+ request.log(SPRequest::SPDebug, string("htaccess: expecting ") + toMatch + ", got " + *v + ": rejected");
+ }
+ }
+ return false;
+}
+
+AccessControl::aclresult_t htAccessControl::doShibAttr(const ShibTargetApache& sta, const Session* session, const char* rule, const char* params) const
+{
+#ifndef SHIB_APACHE_24
+ // Look for the new shib-attr placeholder and move past it.
+ if (sta.m_dc->bCompatWith24 == 1 && rule && !strcmp(rule, "shib-attr")) {
+ if (*params)
+ rule = ap_getword_conf(sta.m_req->pool, ¶ms);
+ }
+#endif
+
+ // Find the attribute(s) matching the require rule.
+ pair<multimap<string,const Attribute*>::const_iterator,multimap<string,const Attribute*>::const_iterator> attrs =
+ session->getIndexedAttributes().equal_range(rule ? rule : "");
+
+ bool regexp = false;
+ while (attrs.first != attrs.second && *params) {
+ const char* w = ap_getword_conf(sta.m_req->pool, ¶ms);
+ if (*w == '~') {
+ regexp = true;
+ continue;
+ }
+
+ try {
+ scoped_ptr<RegularExpression> re;
+ if (regexp) {
+ auto_arrayptr<XMLCh> trans(fromUTF8(w));
+ re.reset(new xercesc::RegularExpression(trans.get()));
+ }
+
+ pair<multimap<string,const Attribute*>::const_iterator,multimap<string,const Attribute*>::const_iterator> attrs2(attrs);
+ for (; attrs2.first != attrs2.second; ++attrs2.first) {
+ if (checkAttribute(sta, attrs2.first->second, w, regexp ? re.get() : nullptr)) {
+ return shib_acl_true;
+ }
+ }
+ }
+ catch (XMLException& ex) {
+ auto_ptr_char tmp(ex.getMessage());
+ sta.log(SPRequest::SPError, string("htaccess plugin caught exception while parsing regular expression (") + w + "): " + tmp.get());
+ }
+ }
+ return shib_acl_false;
+}
+
+AccessControl::aclresult_t htAccessControl::authorized(const SPRequest& request, const Session* session) const
+{
+#ifdef SHIB_APACHE_24
+ // We should never be invoked in 2.4 as an SP plugin.
+ throw ConfigurationException("Save my walrus!");
+#else
+ // Make sure the object is our type.
+ const ShibTargetApache* sta=dynamic_cast<const ShibTargetApache*>(&request);
+ if (!sta)
+ throw ConfigurationException("Request wrapper object was not of correct type.");
+
+ int m = sta->m_req->method_number;
+ bool method_restricted = false;
+ const char *t, *w;
+
+ const array_header* reqs_arr = ap_requires(sta->m_req);
+ if (!reqs_arr)
+ return shib_acl_indeterminate; // should never happen
+
+ // Check for an "embedded" AccessControl plugin.
+ if (sta->m_dc->szAccessControl) {
+ aclresult_t result = doAccessControl(*sta, session, sta->m_dc->szAccessControl);
+ if (result == shib_acl_true && sta->m_dc->bRequireAll != 1) {
+ // If we're not insisting that all rules be met, then we're done.
+ request.log(SPRequest::SPDebug, "htaccess: embedded AccessControl plugin was successful, granting access");
+ return shib_acl_true;
+ }
+ else if (result != shib_acl_true && sta->m_dc->bRequireAll == 1) {
+ // If we're insisting that all rules be met, which is not something Apache really handles well,
+ // then we either return false or indeterminate based on the authoritative option, which defaults on.
+ if (sta->m_dc->bAuthoritative != 0) {
+ request.log(SPRequest::SPDebug, "htaccess: embedded AccessControl plugin was unsuccessful, denying access");
+ return shib_acl_false;
+ }
+
+ request.log(SPRequest::SPDebug, "htaccess: embedded AccessControl plugin was unsuccessful but not authoritative, leaving it up to Apache");
+ return shib_acl_indeterminate;
+ }
+ }
+
+ require_line* reqs = (require_line*)reqs_arr->elts;
+
+ for (int x = 0; x < reqs_arr->nelts; ++x) {
+ // This rule should be completely ignored, the method doesn't fit.
+ // The rule just doesn't exist for our purposes.
+ if (!(reqs[x].method_mask & (1 << m)))
+ continue;
+
+ method_restricted = true; // this lets us know at the end that at least one rule was potentially enforcable.
+
+ // Tracks status of this rule's evaluation.
+ bool status = false;
+
+ string remote_user = request.getRemoteUser();
+
+ t = reqs[x].requirement;
+ w = ap_getword_white(sta->m_req->pool, &t);
+
+ if (!strcasecmp(w,"shibboleth")) {
+ // This is a dummy rule needed because Apache conflates authn and authz.
+ // Without some require rule, AuthType is ignored and no check_user hooks run.
+
+ // We evaluate to false if ShibAccessControl is used and ShibRequireAll is off.
+ // This allows actual rules to dictate the result, since ShibAccessControl returned
+ // non-true, and if nothing else is used, access will be denied.
+ if (!sta->m_dc->szAccessControl || sta->m_dc->bRequireAll == 1) {
+ // We evaluate to true, because ShibRequireAll is enabled (so a true is just a no-op)
+ // or because there was no other AccessControl rule in place, so this may be the only
+ // rule in effect.
+ status = true;
+ }
+ }
+ else if (!strcmp(w,"valid-user") && session) {
+ request.log(SPRequest::SPDebug, "htaccess: accepting valid-user based on active session");
+ status = true;
+ }
+ else if (!strcmp(w,"user") && !remote_user.empty()) {
+ status = (doUser(*sta, t) == shib_acl_true);
+ }
+ else if (!strcmp(w,"group") && !remote_user.empty()) {
+ status = (doGroup(*sta, t) == shib_acl_true);
+ }
+ else if (!strcmp(w,"authnContextClassRef") || !strcmp(w,"authnContextDeclRef")) {
+ const char* ref = !strcmp(w, "authnContextClassRef") ? session->getAuthnContextClassRef() : session->getAuthnContextDeclRef();
+ status = (doAuthnContext(*sta, ref, t) == shib_acl_true);
+ }
+ else if (!session) {
+ request.log(SPRequest::SPError, string("htaccess: require ") + w + " not given a valid session, are you using lazy sessions?");
+ }
+ else if (sta->m_dc->bCompatWith24 == 1 && !strcmp(w,"shib-plugin")) {
+ w = ap_getword_conf(sta->m_req->pool, &t);
+ if (w) {
+ status = (doAccessControl(*sta, session, w) == shib_acl_true);
+ }
+ }
+ else {
+ status = (doShibAttr(*sta, session, w, t) == shib_acl_true);
+ }
+
+ // If status is false, we found a rule we couldn't satisfy.
+ // Could be an unknown rule to us, or it just didn't match.
+
+ if (status && sta->m_dc->bRequireAll != 1) {
+ // If we're not insisting that all rules be met, then we're done.
+ request.log(SPRequest::SPDebug, "htaccess: a rule was successful, granting access");
+ return shib_acl_true;
+ }
+ else if (!status && sta->m_dc->bRequireAll == 1) {
+ // If we're insisting that all rules be met, which is not something Apache really handles well,
+ // then we either return false or indeterminate based on the authoritative option, which defaults on.
+ if (sta->m_dc->bAuthoritative != 0) {
+ request.log(SPRequest::SPDebug, "htaccess: a rule was unsuccessful, denying access");
+ return shib_acl_false;
+ }
+
+ request.log(SPRequest::SPDebug, "htaccess: a rule was unsuccessful but not authoritative, leaving it up to Apache");
+ return shib_acl_indeterminate;
+ }
+
+ // Otherwise, we keep going. If we're requring all, then we have to check every rule.
+ // If not we just didn't find a successful rule yet, so we keep going anyway.
+ }
+
+ // If we get here, we either "failed" or we're in require all mode (but not both).
+ // If no rules possibly apply or we insisted that all rules check out, then we're good.
+ if (!method_restricted) {
+ request.log(SPRequest::SPDebug, "htaccess: no rules applied to this request method, granting access");
+ return shib_acl_true;
+ }
+ else if (sta->m_dc->bRequireAll == 1) {
+ request.log(SPRequest::SPDebug, "htaccess: all rules successful, granting access");
+ return shib_acl_true;
+ }
+ else if (sta->m_dc->bAuthoritative != 0) {
+ request.log(SPRequest::SPDebug, "htaccess: no rules were successful, denying access");
+ return shib_acl_false;
+ }
+
+ request.log(SPRequest::SPDebug, "htaccess: no rules were successful but not authoritative, leaving it up to Apache");
+ return shib_acl_indeterminate;
+#endif
+}
+
+class ApacheRequestMapper : public virtual RequestMapper, public virtual PropertySet
+{
+public:
+ ApacheRequestMapper(const xercesc::DOMElement* e);
+ ~ApacheRequestMapper() {}
+ Lockable* lock() { return m_mapper->lock(); }
+ void unlock() { m_staKey->setData(nullptr); m_propsKey->setData(nullptr); m_mapper->unlock(); }
+ Settings getSettings(const HTTPRequest& request) const;
+
+ const PropertySet* getParent() const { return nullptr; }
+ void setParent(const PropertySet*) {}
+ pair<bool,bool> getBool(const char* name, const char* ns=nullptr) const;
+ pair<bool,const char*> getString(const char* name, const char* ns=nullptr) const;
+ pair<bool,const XMLCh*> getXMLString(const char* name, const char* ns=nullptr) const;
+ pair<bool,unsigned int> getUnsignedInt(const char* name, const char* ns=nullptr) const;
+ pair<bool,int> getInt(const char* name, const char* ns=nullptr) const;
+ void getAll(map<string,const char*>& properties) const;
+ const PropertySet* getPropertySet(const char* name, const char* ns=shibspconstants::ASCII_SHIB2SPCONFIG_NS) const;
+ const xercesc::DOMElement* getElement() const;
+
+ const htAccessControl& getHTAccessControl() const { return m_htaccess; }
+
+private:
+ scoped_ptr<RequestMapper> m_mapper;
+ scoped_ptr<ThreadKey> m_staKey,m_propsKey;
+ mutable htAccessControl m_htaccess;
+};
+
+RequestMapper* ApacheRequestMapFactory(const xercesc::DOMElement* const & e)
+{
+ return new ApacheRequestMapper(e);
+}
+
+ApacheRequestMapper::ApacheRequestMapper(const xercesc::DOMElement* e)
+ : m_mapper(SPConfig::getConfig().RequestMapperManager.newPlugin(XML_REQUEST_MAPPER,e)),
+ m_staKey(ThreadKey::create(nullptr)), m_propsKey(ThreadKey::create(nullptr))
+{
+}
+
+RequestMapper::Settings ApacheRequestMapper::getSettings(const HTTPRequest& request) const
+{
+ Settings s = m_mapper->getSettings(request);
+ m_staKey->setData((void*)dynamic_cast<const ShibTargetApache*>(&request));
+ m_propsKey->setData((void*)s.first);
+ // Only return the htAccess plugin for pre-2.4 servers.
+#ifdef SHIB_APACHE_24
+ return pair<const PropertySet*,AccessControl*>(this, s.second);
+#else
+ return pair<const PropertySet*,AccessControl*>(this, s.second ? s.second : &m_htaccess);
+#endif
+}
+
+pair<bool,bool> ApacheRequestMapper::getBool(const char* name, const char* ns) const
+{
+ const ShibTargetApache* sta=reinterpret_cast<const ShibTargetApache*>(m_staKey->getData());
+ const PropertySet* s=reinterpret_cast<const PropertySet*>(m_propsKey->getData());
+ if (sta && !ns) {
+ // Override Apache-settable boolean properties.
+ if (name && !strcmp(name,"requireSession") && sta->m_dc->bRequireSession != -1)
+ return make_pair(true, sta->m_dc->bRequireSession==1);
+ else if (name && !strcmp(name,"exportAssertion") && sta->m_dc->bExportAssertion != -1)
+ return make_pair(true, sta->m_dc->bExportAssertion==1);
+ else if (sta->m_dc->tSettings) {
+ const char* prop = ap_table_get(sta->m_dc->tSettings, name);
+ if (prop)
+ return make_pair(true, !strcmp(prop, "true") || !strcmp(prop, "1") || !strcmp(prop, "On"));
+ }
+ }
+ return s ? s->getBool(name,ns) : make_pair(false,false);
+}
+
+pair<bool,const char*> ApacheRequestMapper::getString(const char* name, const char* ns) const
+{
+ const ShibTargetApache* sta=reinterpret_cast<const ShibTargetApache*>(m_staKey->getData());
+ const PropertySet* s=reinterpret_cast<const PropertySet*>(m_propsKey->getData());
+ if (sta && !ns) {
// Override Apache-settable string properties.
if (name && !strcmp(name,"authType")) {
- const char *auth_type=ap_auth_type(sta->m_req);
+ const char* auth_type = ap_auth_type(sta->m_req);
if (auth_type) {
// Check for Basic Hijack
if (!strcasecmp(auth_type, "basic") && sta->m_dc->bBasicHijack == 1)
auth_type = "shibboleth";
- return make_pair(true,auth_type);
+ return make_pair(true, auth_type);
}
}
else if (name && !strcmp(name,"applicationId") && sta->m_dc->szApplicationId)
ap_table_do(_rm_get_all_table_walk, &properties, sta->m_dc->tSettings, NULL);
}
-const PropertySet* ApacheRequestMapper::getPropertySet(const char* name, const char* ns) const
-{
- const PropertySet* s=reinterpret_cast<const PropertySet*>(m_propsKey->getData());
- return s ? s->getPropertySet(name,ns) : nullptr;
-}
-
-const xercesc::DOMElement* ApacheRequestMapper::getElement() const
-{
- const PropertySet* s=reinterpret_cast<const PropertySet*>(m_propsKey->getData());
- return s ? s->getElement() : nullptr;
-}
-
-static SH_AP_TABLE* groups_for_user(request_rec* r, const char* user, char* grpfile)
-{
- SH_AP_CONFIGFILE* f;
- SH_AP_TABLE* grps=ap_make_table(r->pool,15);
- char l[MAX_STRING_LEN];
- const char *group_name, *ll, *w;
-
-#ifdef SHIB_APACHE_13
- if (!(f=ap_pcfg_openfile(r->pool,grpfile))) {
-#else
- if (ap_pcfg_openfile(&f,r->pool,grpfile) != APR_SUCCESS) {
-#endif
- ap_log_rerror(APLOG_MARK,APLOG_DEBUG,SH_AP_R(r),"groups_for_user() could not open group file: %s\n",grpfile);
- return nullptr;
- }
-
- SH_AP_POOL* sp;
-#ifdef SHIB_APACHE_13
- sp=ap_make_sub_pool(r->pool);
-#else
- if (apr_pool_create(&sp,r->pool) != APR_SUCCESS) {
- ap_log_rerror(APLOG_MARK,APLOG_ERR,0,r,
- "groups_for_user() could not create a subpool");
- return nullptr;
- }
-#endif
-
- while (!(ap_cfg_getline(l,MAX_STRING_LEN,f))) {
- if ((*l=='#') || (!*l))
- continue;
- ll = l;
- ap_clear_pool(sp);
-
- group_name=ap_getword(sp,&ll,':');
-
- while (*ll) {
- w=ap_getword_conf(sp,&ll);
- if (!strcmp(w,user)) {
- ap_table_setn(grps,ap_pstrdup(r->pool,group_name),"in");
- break;
- }
- }
- }
- ap_cfg_closefile(f);
- ap_destroy_pool(sp);
- return grps;
-}
-
-bool htAccessControl::checkAttribute(const SPRequest& request, const Attribute* attr, const char* toMatch, RegularExpression* re) const
-{
- bool caseSensitive = attr->isCaseSensitive();
- const vector<string>& vals = attr->getSerializedValues();
- for (vector<string>::const_iterator v = vals.begin(); v != vals.end(); ++v) {
- if (re) {
- auto_arrayptr<XMLCh> trans(fromUTF8(v->c_str()));
- if (re->matches(trans.get())) {
- if (request.isPriorityEnabled(SPRequest::SPDebug))
- request.log(SPRequest::SPDebug, string("htaccess: expecting regexp ") + toMatch + ", got " + *v + ": acccepted");
- return true;
- }
- }
- else if ((caseSensitive && *v == toMatch) || (!caseSensitive && !strcasecmp(v->c_str(), toMatch))) {
- if (request.isPriorityEnabled(SPRequest::SPDebug))
- request.log(SPRequest::SPDebug, string("htaccess: expecting ") + toMatch + ", got " + *v + ": accepted");
- return true;
- }
- else if (request.isPriorityEnabled(SPRequest::SPDebug)) {
- request.log(SPRequest::SPDebug, string("htaccess: expecting ") + toMatch + ", got " + *v + ": rejected");
- }
- }
- return false;
-}
-
-AccessControl::aclresult_t htAccessControl::authorized(const SPRequest& request, const Session* session) const
+const PropertySet* ApacheRequestMapper::getPropertySet(const char* name, const char* ns) const
{
- // Make sure the object is our type.
- const ShibTargetApache* sta=dynamic_cast<const ShibTargetApache*>(&request);
- if (!sta)
- throw ConfigurationException("Request wrapper object was not of correct type.");
+ const PropertySet* s=reinterpret_cast<const PropertySet*>(m_propsKey->getData());
+ return s ? s->getPropertySet(name,ns) : nullptr;
+}
- int m=sta->m_req->method_number;
- bool method_restricted=false;
- const char *t, *w;
+const xercesc::DOMElement* ApacheRequestMapper::getElement() const
+{
+ const PropertySet* s=reinterpret_cast<const PropertySet*>(m_propsKey->getData());
+ return s ? s->getElement() : nullptr;
+}
- const array_header* reqs_arr=ap_requires(sta->m_req);
- if (!reqs_arr)
- return shib_acl_indeterminate; // should never happen
+// Authz callbacks for Apache 2.4
+#ifdef SHIB_APACHE_24
+pair<ShibTargetApache*,authz_status> shib_base_check_authz(request_rec* r)
+{
+ shib_request_config* rc = (shib_request_config*)ap_get_module_config(r->request_config, &mod_shib);
+ if (!rc || !rc->sta) {
+ ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, SH_AP_R(r), "shib_base_check_authz found no per-request structure");
+ return make_pair(nullptr, AUTHZ_GENERAL_ERROR);
+ }
+ else if (!rc->sta->isInitialized()) {
+ return make_pair(nullptr, AUTHZ_DENIED_NO_USER);
+ }
+ return make_pair(rc->sta, AUTHZ_GRANTED);
+}
- // Check for an "embedded" AccessControl plugin.
- if (sta->m_dc->szAccessControl) {
- aclresult_t result = shib_acl_false;
- try {
- ifstream aclfile(sta->m_dc->szAccessControl);
- if (!aclfile)
- throw ConfigurationException("Unable to open access control file ($1).", params(1, sta->m_dc->szAccessControl));
- xercesc::DOMDocument* acldoc = XMLToolingConfig::getConfig().getParser().parse(aclfile);
- XercesJanitor<xercesc::DOMDocument> docjanitor(acldoc);
- static XMLCh _type[] = UNICODE_LITERAL_4(t,y,p,e);
- string t(XMLHelper::getAttrString(acldoc ? acldoc->getDocumentElement() : nullptr, nullptr, _type));
- if (t.empty())
- throw ConfigurationException("Missing type attribute in AccessControl plugin configuration.");
- scoped_ptr<AccessControl> aclplugin(SPConfig::getConfig().AccessControlManager.newPlugin(t.c_str(), acldoc->getDocumentElement()));
- Locker acllock(aclplugin.get());
- result = aclplugin->authorized(request, session);
- }
- catch (std::exception& ex) {
- request.log(SPRequest::SPError, ex.what());
- }
+extern "C" static authz_status shib_shibboleth_check_authz(request_rec* r, const char* require_line, const void*)
+{
+ pair<ShibTargetApache*,authz_status> sta = shib_base_check_authz(r);
+ if (!sta.first)
+ return sta.second;
+ return AUTHZ_GRANTED;
+}
- if (result == shib_acl_true && sta->m_dc->bRequireAll != 1) {
- // If we're not insisting that all rules be met, then we're done.
- request.log(SPRequest::SPDebug, "htaccess: embedded AccessControl plugin was successful, granting access");
- return shib_acl_true;
- }
- else if (result != shib_acl_true && sta->m_dc->bRequireAll == 1) {
- // If we're insisting that all rules be met, which is not something Apache really handles well,
- // then we either return false or indeterminate based on the authoritative option, which defaults on.
- if (sta->m_dc->bAuthoritative != 0) {
- request.log(SPRequest::SPDebug, "htaccess: embedded AccessControl plugin was unsuccessful, denying access");
- return shib_acl_false;
- }
+extern "C" static authz_status shib_validuser_check_authz(request_rec* r, const char* require_line, const void*)
+{
+ pair<ShibTargetApache*,authz_status> sta = shib_base_check_authz(r);
+ if (!sta.first)
+ return sta.second;
- request.log(SPRequest::SPDebug, "htaccess: embedded AccessControl plugin was unsuccessful but not authoritative, leaving it up to Apache");
- return shib_acl_indeterminate;
+ try {
+ const Session* session = sta.first->getSession(false);
+ if (session) {
+ sta.first->log(SPRequest::SPDebug, "htaccess: accepting valid-user based on active session");
+ return AUTHZ_GRANTED;
}
}
+ catch (std::exception& e) {
+ sta.first->log(SPRequest::SPWarn, string("htaccess: unable to obtain session for access control check: ") + e.what());
+ }
+ return AUTHZ_DENIED_NO_USER;
+}
- require_line* reqs=(require_line*)reqs_arr->elts;
-
- for (int x=0; x<reqs_arr->nelts; x++) {
- // This rule should be completely ignored, the method doesn't fit.
- // The rule just doesn't exist for our purposes.
- if (!(reqs[x].method_mask & (1 << m)))
- continue;
-
- method_restricted=true; // this lets us know at the end that at least one rule was potentially enforcable.
+extern "C" static authz_status shib_user_check_authz(request_rec* r, const char* require_line, const void*)
+{
+ if (!r->user)
+ return AUTHZ_DENIED_NO_USER;
+ pair<ShibTargetApache*,authz_status> sta = shib_base_check_authz(r);
+ if (!sta.first)
+ return sta.second;
+
+ const htAccessControl& hta = dynamic_cast<const ApacheRequestMapper*>(sta.first->getRequestSettings().first)->getHTAccessControl();
+ if (hta.doUser(*sta.first, require_line) == AccessControl::shib_acl_true)
+ return AUTHZ_GRANTED;
+ return AUTHZ_DENIED;
+}
- // Tracks status of this rule's evaluation.
- bool status = false;
+extern "C" static authz_status shib_acclass_check_authz(request_rec* r, const char* require_line, const void*)
+{
+ pair<ShibTargetApache*,authz_status> sta = shib_base_check_authz(r);
+ if (!sta.first)
+ return sta.second;
- string remote_user = request.getRemoteUser();
+ const htAccessControl& hta = dynamic_cast<const ApacheRequestMapper*>(sta.first->getRequestSettings().first)->getHTAccessControl();
- t = reqs[x].requirement;
- w = ap_getword_white(sta->m_req->pool, &t);
+ try {
+ const Session* session = sta.first->getSession(false);
+ if (session && hta.doAuthnContext(*sta.first, session->getAuthnContextClassRef(), require_line) == AccessControl::shib_acl_true)
+ return AUTHZ_GRANTED;
+ return AUTHZ_DENIED;
+ }
+ catch (std::exception& e) {
+ sta.first->log(SPRequest::SPWarn, string("htaccess: unable to obtain session for access control check: ") + e.what());
+ }
- if (!strcasecmp(w,"shibboleth")) {
- // This is a dummy rule needed because Apache conflates authn and authz.
- // Without some require rule, AuthType is ignored and no check_user hooks run.
+ return AUTHZ_GENERAL_ERROR;
+}
- // We evaluate to false if ShibAccessControl is used and ShibRequireAll is off.
- // This allows actual rules to dictate the result, since ShibAccessControl returned
- // non-true, and if nothing else is used, access will be denied.
- if (!sta->m_dc->szAccessControl || sta->m_dc->bRequireAll == 1) {
- // We evaluate to true, because ShibRequireAll is enabled (so a true is just a no-op)
- // or because there was no other AccessControl rule in place, so this may be the only
- // rule in effect.
- status = true;
- }
- }
- else if (!strcmp(w,"valid-user") && session) {
- request.log(SPRequest::SPDebug, "htaccess: accepting valid-user based on active session");
- status = true;
- }
- else if (!strcmp(w,"user") && !remote_user.empty()) {
- bool regexp = false;
- while (*t) {
- w = ap_getword_conf(sta->m_req->pool,&t);
- if (*w == '~') {
- regexp = true;
- continue;
- }
- else if (*w == '!') {
- // A negated rule presumes success unless a match is found.
- status = true;
- if (*(w+1) == '~')
- regexp = true;
- continue;
- }
+extern "C" static authz_status shib_acdecl_check_authz(request_rec* r, const char* require_line, const void*)
+{
+ pair<ShibTargetApache*,authz_status> sta = shib_base_check_authz(r);
+ if (!sta.first)
+ return sta.second;
- // Figure out if there's a match.
- bool match = false;
- if (regexp) {
- try {
- // To do regex matching, we have to convert from UTF-8.
- auto_arrayptr<XMLCh> trans(fromUTF8(w));
- RegularExpression re(trans.get());
- auto_arrayptr<XMLCh> trans2(fromUTF8(remote_user.c_str()));
- match = re.matches(trans2.get());
- }
- catch (XMLException& ex) {
- auto_ptr_char tmp(ex.getMessage());
- request.log(SPRequest::SPError,
- string("htaccess plugin caught exception while parsing regular expression (") + w + "): " + tmp.get());
- }
- }
- else if (remote_user == w) {
- match = true;
- }
+ const htAccessControl& hta = dynamic_cast<const ApacheRequestMapper*>(sta.first->getRequestSettings().first)->getHTAccessControl();
- if (match) {
- // If we matched, then we're done with this rule either way and we flip status to reflect the outcome.
- status = !status;
- if (request.isPriorityEnabled(SPRequest::SPDebug))
- request.log(SPRequest::SPDebug,
- string("htaccess: require user ") + (!status ? "rejecting (" : "accepting (") + remote_user + ")");
- break;
- }
- }
- }
- else if (!strcmp(w,"group") && !remote_user.empty()) {
- SH_AP_TABLE* grpstatus = nullptr;
- if (sta->m_dc->szAuthGrpFile) {
- if (request.isPriorityEnabled(SPRequest::SPDebug))
- request.log(SPRequest::SPDebug,string("htaccess plugin using groups file: ") + sta->m_dc->szAuthGrpFile);
- grpstatus = groups_for_user(sta->m_req,remote_user.c_str(),sta->m_dc->szAuthGrpFile);
- }
+ try {
+ const Session* session = sta.first->getSession(false);
+ if (session && hta.doAuthnContext(*sta.first, session->getAuthnContextDeclRef(), require_line) == AccessControl::shib_acl_true)
+ return AUTHZ_GRANTED;
+ return AUTHZ_DENIED;
+ }
+ catch (std::exception& e) {
+ sta.first->log(SPRequest::SPWarn, string("htaccess: unable to obtain session for access control check: ") + e.what());
+ }
- while (*t) {
- w = ap_getword_conf(sta->m_req->pool,&t);
- if (*w == '!') {
- // A negated rule presumes success unless a match is found.
- status = true;
- continue;
- }
+ return AUTHZ_GENERAL_ERROR;
+}
- if (grpstatus && ap_table_get(grpstatus,w)) {
- // If we matched, then we're done with this rule either way and we flip status to reflect the outcome.
- status = !status;
- request.log(SPRequest::SPDebug, string("htaccess: require group ") + (!status ? "rejecting (" : "accepting (") + w + ")");
- break;
- }
- }
- }
- else if (!strcmp(w,"authnContextClassRef") || !strcmp(w,"authnContextDeclRef")) {
- const char* ref = !strcmp(w,"authnContextClassRef") ? session->getAuthnContextClassRef() : session->getAuthnContextDeclRef();
- if (ref && *ref) {
- bool regexp = false;
- while (ref && *t) {
- w = ap_getword_conf(sta->m_req->pool,&t);
- if (*w == '~') {
- regexp=true;
- continue;
- }
- else if (*w == '!') {
- // A negated rule presumes success unless a match is found.
- status = true;
- if (*(w+1)=='~')
- regexp = true;
- continue;
- }
+extern "C" static authz_status shib_attr_check_authz(request_rec* r, const char* require_line, const void*)
+{
+ pair<ShibTargetApache*,authz_status> sta = shib_base_check_authz(r);
+ if (!sta.first)
+ return sta.second;
- // Figure out if there's a match.
- bool match = false;
- if (regexp) {
- try {
- // To do regex matching, we have to convert from UTF-8.
- RegularExpression re(w);
- match = re.matches(ref);
- }
- catch (XMLException& ex) {
- auto_ptr_char tmp(ex.getMessage());
- request.log(SPRequest::SPError,
- string("htaccess plugin caught exception while parsing regular expression (") + w + "): " + tmp.get());
- }
- }
- else if (!strcmp(w,ref)) {
- match = true;
- }
+ const htAccessControl& hta = dynamic_cast<const ApacheRequestMapper*>(sta.first->getRequestSettings().first)->getHTAccessControl();
- if (match) {
- // If we matched, then we're done with this rule either way and we flip status to reflect the outcome.
- status = !status;
- if (request.isPriorityEnabled(SPRequest::SPDebug))
- request.log(SPRequest::SPDebug,
- string("htaccess: require authnContext ") + (!status ? "rejecting (" : "accepting (") + ref + ")");
- break;
- }
- }
- }
- else if (request.isPriorityEnabled(SPRequest::SPDebug)) {
- request.log(SPRequest::SPDebug, "htaccess: require authnContext rejecting session with no context associated");
- }
- }
- else if (!session) {
- request.log(SPRequest::SPError, string("htaccess: require ") + w + " not given a valid session, are you using lazy sessions?");
+ try {
+ const Session* session = sta.first->getSession(false);
+ if (session) {
+ const char* rule = ap_getword_conf(r->pool, &require_line);
+ if (rule && hta.doShibAttr(*sta.first, session, rule, require_line) == AccessControl::shib_acl_true)
+ return AUTHZ_GRANTED;
}
- else {
- // Find the attribute(s) matching the require rule.
- pair<multimap<string,const Attribute*>::const_iterator,multimap<string,const Attribute*>::const_iterator> attrs =
- session->getIndexedAttributes().equal_range(w);
-
- bool regexp=false;
- while (!status && attrs.first!=attrs.second && *t) {
- w=ap_getword_conf(sta->m_req->pool,&t);
- if (*w=='~') {
- regexp=true;
- continue;
- }
+ return AUTHZ_DENIED;
+ }
+ catch (std::exception& e) {
+ sta.first->log(SPRequest::SPWarn, string("htaccess: unable to obtain session for access control check: ") + e.what());
+ }
- try {
- scoped_ptr<RegularExpression> re;
- if (regexp) {
- auto_arrayptr<XMLCh> trans(fromUTF8(w));
- re.reset(new xercesc::RegularExpression(trans.get()));
- }
-
- pair<multimap<string,const Attribute*>::const_iterator,multimap<string,const Attribute*>::const_iterator> attrs2(attrs);
- for (; !status && attrs2.first!=attrs2.second; ++attrs2.first) {
- if (checkAttribute(request, attrs2.first->second, w, regexp ? re.get() : nullptr)) {
- status = true;
- }
- }
- }
- catch (XMLException& ex) {
- auto_ptr_char tmp(ex.getMessage());
- request.log(SPRequest::SPError,
- string("htaccess plugin caught exception while parsing regular expression (") + w + "): " + tmp.get()
- );
- }
- }
- }
+ return AUTHZ_GENERAL_ERROR;
+}
- // If status is false, we found a rule we couldn't satisfy.
- // Could be an unknown rule to us, or it just didn't match.
+extern "C" static authz_status shib_plugin_check_authz(request_rec* r, const char* require_line, const void*)
+{
+ pair<ShibTargetApache*,authz_status> sta = shib_base_check_authz(r);
+ if (!sta.first)
+ return sta.second;
- if (status && sta->m_dc->bRequireAll != 1) {
- // If we're not insisting that all rules be met, then we're done.
- request.log(SPRequest::SPDebug, "htaccess: a rule was successful, granting access");
- return shib_acl_true;
- }
- else if (!status && sta->m_dc->bRequireAll == 1) {
- // If we're insisting that all rules be met, which is not something Apache really handles well,
- // then we either return false or indeterminate based on the authoritative option, which defaults on.
- if (sta->m_dc->bAuthoritative != 0) {
- request.log(SPRequest::SPDebug, "htaccess: a rule was unsuccessful, denying access");
- return shib_acl_false;
- }
+ const htAccessControl& hta = dynamic_cast<const ApacheRequestMapper*>(sta.first->getRequestSettings().first)->getHTAccessControl();
- request.log(SPRequest::SPDebug, "htaccess: a rule was unsuccessful but not authoritative, leaving it up to Apache");
- return shib_acl_indeterminate;
+ try {
+ const Session* session = sta.first->getSession(false);
+ if (session) {
+ const char* config = ap_getword_conf(r->pool, &require_line);
+ if (config && hta.doAccessControl(*sta.first, session, config) == AccessControl::shib_acl_true)
+ return AUTHZ_GRANTED;
}
-
- // Otherwise, we keep going. If we're requring all, then we have to check every rule.
- // If not we just didn't find a successful rule yet, so we keep going anyway.
- }
-
- // If we get here, we either "failed" or we're in require all mode (but not both).
- // If no rules possibly apply or we insisted that all rules check out, then we're good.
- if (!method_restricted) {
- request.log(SPRequest::SPDebug, "htaccess: no rules applied to this request method, granting access");
- return shib_acl_true;
+ return AUTHZ_DENIED;
}
- else if (sta->m_dc->bRequireAll == 1) {
- request.log(SPRequest::SPDebug, "htaccess: all rules successful, granting access");
- return shib_acl_true;
- }
- else if (sta->m_dc->bAuthoritative != 0) {
- request.log(SPRequest::SPDebug, "htaccess: no rules were successful, denying access");
- return shib_acl_false;
+ catch (std::exception& e) {
+ sta.first->log(SPRequest::SPWarn, string("htaccess: unable to obtain session for access control check: ") + e.what());
}
- request.log(SPRequest::SPDebug, "htaccess: no rules were successful but not authoritative, leaving it up to Apache");
- return shib_acl_indeterminate;
+ return AUTHZ_GENERAL_ERROR;
}
+#endif
+// Command manipulation functions
-// Initial look at a request - create the per-request structure
-static int shib_post_read(request_rec *r)
+extern "C" const char* ap_set_global_string_slot(cmd_parms* parms, void*, const char* arg)
{
- init_request_config(r);
- //ap_log_rerror(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(r), "shib_post_read");
- return DECLINED;
+ *((char**)(parms->info))=ap_pstrdup(parms->pool,arg);
+ return nullptr;
}
-// fixups: set environment vars
-
-extern "C" int shib_fixups(request_rec* r)
+extern "C" const char* shib_set_server_string_slot(cmd_parms* parms, void*, const char* arg)
{
- shib_request_config *rc = (shib_request_config*)ap_get_module_config(r->request_config, &mod_shib);
- shib_dir_config *dc = (shib_dir_config*)ap_get_module_config(r->per_dir_config, &mod_shib);
- if (dc->bOff==1 || dc->bUseEnvVars==0)
- return DECLINED;
+ char* base=(char*)ap_get_module_config(parms->server->module_config,&mod_shib);
+ size_t offset=(size_t)parms->info;
+ *((char**)(base + offset))=ap_pstrdup(parms->pool,arg);
+ return nullptr;
+}
- ap_log_rerror(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(r), "shib_fixup(%d): ENTER", (int)getpid());
+extern "C" const char* shib_ap_set_file_slot(cmd_parms* parms,
+#ifdef SHIB_APACHE_13
+ char* arg1, char* arg2
+#else
+ void* arg1, const char* arg2
+#endif
+ )
+{
+ ap_set_file_slot(parms, arg1, arg2);
+ return DECLINE_CMD;
+}
- if (rc==nullptr || rc->env==nullptr || ap_is_empty_table(rc->env))
- return DECLINED;
+extern "C" const char* shib_table_set(cmd_parms* parms, shib_dir_config* dc, const char* arg1, const char* arg2)
+{
+ if (!dc->tSettings)
+ dc->tSettings = ap_make_table(parms->pool, 4);
+ ap_table_set(dc->tSettings, arg1, arg2);
+ return nullptr;
+}
- ap_log_rerror(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(r), "shib_fixup adding %d vars", ap_table_elts(rc->env)->nelts);
- r->subprocess_env = ap_overlay_tables(r->pool, r->subprocess_env, rc->env);
+#ifndef SHIB_APACHE_24
+extern "C" const char* shib_set_acl_slot(cmd_parms* params, shib_dir_config* dc, char* arg)
+{
+ bool absolute;
+ switch (*arg) {
+ case 0:
+ absolute = false;
+ break;
+ case '/':
+ case '\\':
+ absolute = true;
+ break;
+ case '.':
+ absolute = (*(arg+1) == '.' || *(arg+1) == '/' || *(arg+1) == '\\');
+ break;
+ default:
+ absolute = *(arg+1) == ':';
+ }
- return OK;
+ if (absolute || !params->path)
+ dc->szAccessControl = ap_pstrdup(params->pool, arg);
+ else
+ dc->szAccessControl = ap_pstrcat(params->pool, params->path, arg);
+ return nullptr;
}
+#endif
+
#ifdef SHIB_APACHE_13
/*
ap_log_error(APLOG_MARK,APLOG_CRIT|APLOG_NOERRNO,SH_AP_R(s),"shib_child_init() failed to initialize libraries");
exit(1);
}
- g_Config->AccessControlManager.registerFactory(HT_ACCESS_CONTROL,&htAccessFactory);
- g_Config->RequestMapperManager.registerFactory(NATIVE_REQUEST_MAPPER,&ApacheRequestMapFactory);
+#ifndef SHIB_APACHE_24
+ g_Config->AccessControlManager.registerFactory(HT_ACCESS_CONTROL, &htAccessFactory);
+#endif
+ g_Config->RequestMapperManager.registerFactory(NATIVE_REQUEST_MAPPER, &ApacheRequestMapFactory);
try {
if (!g_Config->instantiate(g_szSHIBConfig, true))
exit(1);
}
- ServiceProvider* sp=g_Config->getServiceProvider();
+ ServiceProvider* sp = g_Config->getServiceProvider();
xmltooling::Locker locker(sp);
- const PropertySet* props=sp->getPropertySet("InProcess");
+ const PropertySet* props = sp->getPropertySet("InProcess");
if (props) {
- pair<bool,const char*> unsetValue=props->getString("unsetHeaderValue");
+ pair<bool,const char*> unsetValue = props->getString("unsetHeaderValue");
if (unsetValue.first)
g_unsetHeaderValue = unsetValue.second;
pair<bool,bool> flag=props->getBool("checkSpoofing");
// Set the cleanup handler
apr_pool_cleanup_register(p, nullptr, &shib_exit, apr_pool_cleanup_null);
- ap_log_error(APLOG_MARK,APLOG_DEBUG|APLOG_NOERRNO,SH_AP_R(s),"shib_child_init() done");
+ ap_log_error(APLOG_MARK, APLOG_DEBUG|APLOG_NOERRNO, SH_AP_R(s), "shib_child_init() done");
}
// Output filters
{"AuthzShibAuthoritative", (config_fn_t)ap_set_flag_slot,
(void *) XtOffsetOf (shib_dir_config, bAuthoritative),
OR_AUTHCFG, FLAG, "Allow failed mod_shib htaccess authorization to fall through to other modules"},
+ {"ShibCompatWith24", (config_fn_t)ap_set_flag_slot,
+ (void *) XtOffsetOf (shib_dir_config, bCompatWith24),
+ OR_AUTHCFG, FLAG, "Support Apache 2.4-style require rules"},
{"ShibUseEnvironment", (config_fn_t)ap_set_flag_slot,
(void *) XtOffsetOf (shib_dir_config, bUseEnvVars),
OR_AUTHCFG, FLAG, "Export attributes using environment variables (default)"},
shib_post_read /* post read-request */
};
-#elif defined(SHIB_APACHE_20) || defined(SHIB_APACHE_22)
+#else
-//static const char * const authnPre[] = { "mod_gss.c", nullptr };
+#ifdef SHIB_APACHE_24
+extern "C" static const authz_provider shib_authz_shibboleth_provider = { &shib_shibboleth_check_authz, nullptr };
+extern "C" static const authz_provider shib_authz_validuser_provider = { &shib_validuser_check_authz, nullptr };
+extern "C" static const authz_provider shib_authz_user_provider = { &shib_user_check_authz, nullptr };
+extern "C" static const authz_provider shib_authz_acclass_provider = { &shib_acclass_check_authz, nullptr };
+extern "C" static const authz_provider shib_authz_acdecl_provider = { &shib_acdecl_check_authz, nullptr };
+extern "C" static const authz_provider shib_authz_attr_provider = { &shib_attr_check_authz, nullptr };
+extern "C" static const authz_provider shib_authz_plugin_provider = { &shib_plugin_check_authz, nullptr };
+#endif
extern "C" void shib_register_hooks (apr_pool_t *p)
{
#ifdef SHIB_DEFERRED_HEADERS
- ap_register_output_filter("SHIB_HEADERS_OUT", do_output_filter, nullptr, AP_FTYPE_CONTENT_SET);
- ap_hook_insert_filter(set_output_filter, nullptr, nullptr, APR_HOOK_LAST);
- ap_register_output_filter("SHIB_HEADERS_ERR", do_error_filter, nullptr, AP_FTYPE_CONTENT_SET);
- ap_hook_insert_error_filter(set_error_filter, nullptr, nullptr, APR_HOOK_LAST);
- ap_hook_post_read_request(shib_post_read, nullptr, nullptr, APR_HOOK_MIDDLE);
+ ap_register_output_filter("SHIB_HEADERS_OUT", do_output_filter, nullptr, AP_FTYPE_CONTENT_SET);
+ ap_hook_insert_filter(set_output_filter, nullptr, nullptr, APR_HOOK_LAST);
+ ap_register_output_filter("SHIB_HEADERS_ERR", do_error_filter, nullptr, AP_FTYPE_CONTENT_SET);
+ ap_hook_insert_error_filter(set_error_filter, nullptr, nullptr, APR_HOOK_LAST);
+ ap_hook_post_read_request(shib_post_read, nullptr, nullptr, APR_HOOK_MIDDLE);
+#endif
+ ap_hook_child_init(shib_child_init, nullptr, nullptr, APR_HOOK_MIDDLE);
+ const char* prereq = getenv("SHIBSP_APACHE_PREREQ");
+#ifdef SHIB_APACHE_24
+ if (prereq && *prereq) {
+ const char* const authnPre[] = { prereq, nullptr };
+ ap_hook_check_authn(shib_check_user, authnPre, nullptr, APR_HOOK_MIDDLE, AP_AUTH_INTERNAL_PER_URI);
+ }
+ else {
+ ap_hook_check_authn(shib_check_user, nullptr, nullptr, APR_HOOK_MIDDLE, AP_AUTH_INTERNAL_PER_URI);
+ }
+ ap_hook_check_authz(shib_auth_checker, nullptr, nullptr, APR_HOOK_FIRST, AP_AUTH_INTERNAL_PER_URI);
+#else
+ if (prereq && *prereq) {
+ const char* const authnPre[] = { prereq, nullptr };
+ ap_hook_check_user_id(shib_check_user, authnPre, nullptr, APR_HOOK_MIDDLE);
+ }
+ else {
+ ap_hook_check_user_id(shib_check_user, nullptr, nullptr, APR_HOOK_MIDDLE);
+ }
+ ap_hook_auth_checker(shib_auth_checker, nullptr, nullptr, APR_HOOK_FIRST);
+#endif
+ ap_hook_handler(shib_handler, nullptr, nullptr, APR_HOOK_LAST);
+ ap_hook_fixups(shib_fixups, nullptr, nullptr, APR_HOOK_MIDDLE);
+
+#ifdef SHIB_APACHE_24
+ ap_register_auth_provider(p, AUTHZ_PROVIDER_GROUP, "shibboleth", AUTHZ_PROVIDER_VERSION, &shib_authz_shibboleth_provider, AP_AUTH_INTERNAL_PER_CONF);
+ ap_register_auth_provider(p, AUTHZ_PROVIDER_GROUP, "valid-user", AUTHZ_PROVIDER_VERSION, &shib_authz_validuser_provider, AP_AUTH_INTERNAL_PER_CONF);
+ ap_register_auth_provider(p, AUTHZ_PROVIDER_GROUP, "user", AUTHZ_PROVIDER_VERSION, &shib_authz_user_provider, AP_AUTH_INTERNAL_PER_CONF);
+ ap_register_auth_provider(p, AUTHZ_PROVIDER_GROUP, "authnContextClassRef", AUTHZ_PROVIDER_VERSION, &shib_authz_acclass_provider, AP_AUTH_INTERNAL_PER_CONF);
+ ap_register_auth_provider(p, AUTHZ_PROVIDER_GROUP, "authnContextDeclRef", AUTHZ_PROVIDER_VERSION, &shib_authz_acdecl_provider, AP_AUTH_INTERNAL_PER_CONF);
+ ap_register_auth_provider(p, AUTHZ_PROVIDER_GROUP, "shib-attr", AUTHZ_PROVIDER_VERSION, &shib_authz_attr_provider, AP_AUTH_INTERNAL_PER_CONF);
+ ap_register_auth_provider(p, AUTHZ_PROVIDER_GROUP, "shib-plugin", AUTHZ_PROVIDER_VERSION, &shib_authz_plugin_provider, AP_AUTH_INTERNAL_PER_CONF);
#endif
- ap_hook_child_init(shib_child_init, nullptr, nullptr, APR_HOOK_MIDDLE);
- const char* prereq = getenv("SHIBSP_APACHE_PREREQ");
- if (prereq && *prereq) {
- const char* const authnPre[] = { prereq, nullptr };
- ap_hook_check_user_id(shib_check_user, authnPre, nullptr, APR_HOOK_MIDDLE);
- }
- else {
- ap_hook_check_user_id(shib_check_user, nullptr, nullptr, APR_HOOK_MIDDLE);
- }
- ap_hook_auth_checker(shib_auth_checker, nullptr, nullptr, APR_HOOK_FIRST);
- ap_hook_handler(shib_handler, nullptr, nullptr, APR_HOOK_LAST);
- ap_hook_fixups(shib_fixups, nullptr, nullptr, APR_HOOK_MIDDLE);
}
// SHIB Module commands
AP_INIT_TAKE2("ShibRequestSetting", (config_fn_t)shib_table_set, nullptr,
OR_AUTHCFG, "Set arbitrary Shibboleth request property for content"),
- AP_INIT_TAKE1("ShibAccessControl", (config_fn_t)shib_set_acl_slot, nullptr,
- OR_AUTHCFG, "Set arbitrary Shibboleth access control plugin for content"),
-
AP_INIT_FLAG("ShibDisable", (config_fn_t)ap_set_flag_slot,
(void *) offsetof (shib_dir_config, bOff),
OR_AUTHCFG, "Disable all Shib module activity here to save processing effort"),
AP_INIT_TAKE1("ShibRedirectToSSL", (config_fn_t)ap_set_string_slot,
(void *) offsetof (shib_dir_config, szRedirectToSSL),
OR_AUTHCFG, "Redirect non-SSL requests to designated port"),
+#ifdef SHIB_APACHE_24
+ AP_INIT_FLAG("ShibRequestMapperAuthz", (config_fn_t)ap_set_flag_slot,
+ (void *) offsetof (shib_dir_config, bRequestMapperAuthz),
+ OR_AUTHCFG, "Support access control via shibboleth2.xml / RequestMapper"),
+#else
AP_INIT_TAKE1("AuthGroupFile", (config_fn_t)shib_ap_set_file_slot,
(void *) offsetof (shib_dir_config, szAuthGrpFile),
OR_AUTHCFG, "Text file containing group names and member user IDs"),
+ AP_INIT_TAKE1("ShibAccessControl", (config_fn_t)shib_set_acl_slot, nullptr,
+ OR_AUTHCFG, "Set arbitrary Shibboleth access control plugin for content"),
AP_INIT_FLAG("ShibRequireAll", (config_fn_t)ap_set_flag_slot,
(void *) offsetof (shib_dir_config, bRequireAll),
OR_AUTHCFG, "All require directives must match"),
AP_INIT_FLAG("AuthzShibAuthoritative", (config_fn_t)ap_set_flag_slot,
(void *) offsetof (shib_dir_config, bAuthoritative),
OR_AUTHCFG, "Allow failed mod_shib htaccess authorization to fall through to other modules"),
+ AP_INIT_FLAG("ShibCompatWith24", (config_fn_t)ap_set_flag_slot,
+ (void *) offsetof (shib_dir_config, bCompatWith24),
+ OR_AUTHCFG, "Support Apache 2.4-style require rules"),
+#endif
AP_INIT_FLAG("ShibUseEnvironment", (config_fn_t)ap_set_flag_slot,
(void *) offsetof (shib_dir_config, bUseEnvVars),
OR_AUTHCFG, "Export attributes using environment variables (default)"),
shib_register_hooks /* register hooks */
};
-#else
-#error "unsupported Apache version"
#endif
}
projects / shibboleth / cpp-sp.git / commitdiff