/*
- * Copyright 2001-2007 Internet2
- *
+ * Copyright 2001-2009 Internet2
+ *
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
/**
* nsapi_shib.cpp
- *
+ *
* Shibboleth NSAPI filter
*/
#ifdef WIN32
# define _CRT_NONSTDC_NO_DEPRECATE 1
# define _CRT_SECURE_NO_DEPRECATE 1
+# define _CRT_RAND_S
#endif
+#include <shibsp/exceptions.h>
#include <shibsp/AbstractSPRequest.h>
#include <shibsp/RequestMapper.h>
#include <shibsp/SPConfig.h>
#include <shibsp/ServiceProvider.h>
+
+#include <set>
+#include <memory>
+#include <fstream>
+#include <sstream>
+#include <stdexcept>
#include <xmltooling/XMLToolingConfig.h>
#include <xmltooling/util/NDC.h>
#include <xmltooling/util/Threads.h>
#include <xmltooling/util/XMLHelper.h>
#include <xercesc/util/XMLUniDefs.hpp>
-#include <fstream>
-#include <sstream>
-
#ifdef WIN32
# include <process.h>
# define XP_WIN32
namespace {
SPConfig* g_Config=NULL;
string g_ServerName;
- string g_ServerScheme;
string g_unsetHeaderValue;
+ string g_spoofKey;
bool g_checkSpoofing = true;
+ bool g_catchAll = false;
static const XMLCh path[] = UNICODE_LITERAL_4(p,a,t,h);
static const XMLCh validate[] = UNICODE_LITERAL_8(v,a,l,i,d,a,t,e);
+
+ void _my_invalid_parameter_handler(
+ const wchar_t * expression,
+ const wchar_t * function,
+ const wchar_t * file,
+ unsigned int line,
+ uintptr_t pReserved
+ ) {
+ return;
+ }
}
PluginManager<RequestMapper,string,const xercesc::DOMElement*>::Factory SunRequestMapFactory;
}
}
}
- name=pblock_findval("server-scheme",pb);
- if (name)
- g_ServerScheme=name;
log_error(LOG_INFORM,"nsapi_shib_init",sn,rq,"nsapi_shib loaded for host (%s)",g_ServerName.c_str());
const char* schemadir=pblock_findval("shib-schemas",pb);
- if (!schemadir)
- schemadir=getenv("SHIBSP_SCHEMAS");
- if (!schemadir)
- schemadir=SHIBSP_SCHEMAS;
- const char* config=pblock_findval("shib-config",pb);
- if (!config)
- config=getenv("SHIBSP_CONFIG");
- if (!config)
- config=SHIBSP_CONFIG;
+ const char* prefix=pblock_findval("shib-prefix",pb);
+
g_Config=&SPConfig::getConfig();
g_Config->setFeatures(
SPConfig::Listener |
SPConfig::Logging |
SPConfig::Handlers
);
- if (!g_Config->init(schemadir)) {
+ if (!g_Config->init(schemadir,prefix)) {
g_Config=NULL;
pblock_nvinsert("error","unable to initialize Shibboleth libraries",pb);
return REQ_ABORTED;
}
- g_Config->RequestMapperManager.registerFactory(XML_REQUEST_MAPPER,&SunRequestMapFactory);
+ g_Config->RequestMapperManager.registerFactory(NATIVE_REQUEST_MAPPER,&SunRequestMapFactory);
try {
- xercesc::DOMDocument* dummydoc=XMLToolingConfig::getConfig().getParser().newDocument();
- XercesJanitor<xercesc::DOMDocument> docjanitor(dummydoc);
- xercesc::DOMElement* dummy = dummydoc->createElementNS(NULL,path);
- auto_ptr_XMLCh src(config);
- dummy->setAttributeNS(NULL,path,src.get());
- dummy->setAttributeNS(NULL,validate,xmlconstants::XML_ONE);
-
- g_Config->setServiceProvider(g_Config->ServiceProviderManager.newPlugin(XML_SERVICE_PROVIDER,dummy));
- g_Config->getServiceProvider()->init();
+ if (!g_Config->instantiate(pblock_findval("shib-config",pb), true))
+ throw runtime_error("unknown error");
}
catch (exception& ex) {
pblock_nvinsert("error",ex.what(),pb);
ServiceProvider* sp=g_Config->getServiceProvider();
Locker locker(sp);
- const PropertySet* props=sp->getPropertySet("Local");
+ const PropertySet* props=sp->getPropertySet("InProcess");
if (props) {
+ pair<bool,bool> flag=props->getBool("checkSpoofing");
+ g_checkSpoofing = !flag.first || flag.second;
+ flag=props->getBool("catchAll");
+ g_catchAll = flag.first && flag.second;
+
pair<bool,const char*> unsetValue=props->getString("unsetHeaderValue");
if (unsetValue.first)
g_unsetHeaderValue = unsetValue.second;
- pair<bool,bool> checkSpoofing=props->getBool("checkSpoofing");
- if (checkSpoofing.first && !checkSpoofing.second)
- g_checkSpoofing = false;
+ if (g_checkSpoofing) {
+ unsetValue=props->getString("spoofKey");
+ if (unsetValue.first)
+ g_spoofKey = unsetValue.second;
+#ifdef WIN32
+ else {
+ _invalid_parameter_handler old = _set_invalid_parameter_handler(_my_invalid_parameter_handler);
+ unsigned int randkey=0,randkey2=0,randkey3=0,randkey4=0;
+ if (rand_s(&randkey) == 0 && rand_s(&randkey2) == 0 && rand_s(&randkey3) == 0 && rand_s(&randkey4) == 0) {
+ _set_invalid_parameter_handler(old);
+ ostringstream keystr;
+ keystr << randkey << randkey2 << randkey3 << randkey4;
+ g_spoofKey = keystr.str();
+ }
+ else {
+ _set_invalid_parameter_handler(old);
+ pblock_nvinsert("error", "module failed to generate a random anti-spoofing key (if this is Windows 2000 set one manually)", pb);
+ locker.assign(); // pops lock on SP config
+ g_Config->term();
+ g_Config=NULL;
+ return REQ_ABORTED;
+ }
+ }
+#endif
+ }
}
return REQ_PROCEED;
}
class ShibTargetNSAPI : public AbstractSPRequest
{
- string m_uri;
mutable string m_body;
- mutable bool m_gotBody;
+ mutable bool m_gotBody,m_firsttime;
+ bool m_security_active;
+ int m_server_portnum;
mutable vector<string> m_certs;
set<string> m_allhttp;
public:
- ShibTargetNSAPI(pblock* pb, ::Session* sn, Request* rq) : m_gotBody(false) {
- m_pb = pb;
- m_sn = sn;
- m_rq = rq;
-
- const char* uri=pblock_findval("uri", rq->reqpb);
- const char* qstr=pblock_findval("query", rq->reqpb);
-
- if (uri)
- m_uri = uri;
- if (qstr)
- m_uri = m_uri + '?' + qstr;
- }
- ~ShibTargetNSAPI() {
+ pblock* m_pb;
+ ::Session* m_sn;
+ Request* m_rq;
+
+ ShibTargetNSAPI(pblock* pb, ::Session* sn, Request* rq)
+ : AbstractSPRequest(SHIBSP_LOGCAT".NSAPI"),
+ m_gotBody(false), m_firsttime(true), m_security_active(false), m_server_portnum(0), m_pb(pb), m_sn(sn), m_rq(rq) {
+
+ // To determine whether SSL is active or not, we're supposed to rely
+ // on the security_active macro. For iPlanet 4.x, this works.
+ // For Sun 7.x, it's useless and appears to be on or off based
+ // on whether ANY SSL support is enabled for a vhost. Sun 6.x is unknown.
+ // As a fix, there's a conf variable called $security that can be mapped
+ // into a function parameter: security_active="$security"
+ // We check for this parameter, and rely on the macro if it isn't set.
+ // This doubles as a scheme virtualizer for load balanced scenarios
+ // since you can set the parameter to 1 or 0 as needed.
+ const char* sa = pblock_findval("security_active", m_pb);
+ if (sa)
+ m_security_active = (*sa == '1');
+ else if (security_active)
+ m_security_active = true;
+ else
+ m_security_active = false;
+
+ // A similar issue exists for the port. server_portnum is no longer
+ // working on at least Sun 7.x, and returns the first listener's port
+ // rather than whatever port is actually used for the request. Nice job, Sun.
+ sa = pblock_findval("server_portnum", m_pb);
+ m_server_portnum = (sa && *sa) ? atoi(sa) : server_portnum;
+
+ const char* uri = pblock_findval("uri", rq->reqpb);
+ const char* qstr = pblock_findval("query", rq->reqpb);
+
+ if (qstr) {
+ string temp = string(uri) + '?' + qstr;
+ setRequestURI(temp.c_str());
+ }
+ else {
+ setRequestURI(uri);
+ }
+
+ // See if this is the first time we've run.
+ if (!g_spoofKey.empty()) {
+ qstr = pblock_findval("Shib-Spoof-Check", rq->headers);
+ if (qstr && g_spoofKey == qstr)
+ m_firsttime = false;
+ }
+ if (!m_firsttime || rq->orig_rq)
+ log(SPDebug, "nsapi_shib function running more than once");
}
+ ~ShibTargetNSAPI() { }
const char* getScheme() const {
- return security_active ? "https" : "http";
+ return m_security_active ? "https" : "http";
}
const char* getHostname() const {
#ifdef vs_is_default_vs
return g_ServerName.c_str();
}
int getPort() const {
- return server_portnum;
- }
- const char* getRequestURI() const {
- return m_uri.c_str();
+ return m_server_portnum;
}
const char* getMethod() const {
return pblock_findval("method", m_rq->reqpb);
}
string getContentType() const {
- char* content_type = "";
- request_header("content-type", &content_type, m_sn, m_rq);
- return content_type;
+ char* content_type = NULL;
+ if (request_header("content-type", &content_type, m_sn, m_rq) != REQ_PROCEED)
+ return "";
+ return content_type ? content_type : "";
}
long getContentLength() const {
if (m_gotBody)
return m_body.length();
- char* content_length="";
- request_header("content-length", &content_length, m_sn, m_rq);
- return atoi(content_length);
+ char* content_length=NULL;
+ if (request_header("content-length", &content_length, m_sn, m_rq) != REQ_PROCEED)
+ return 0;
+ return content_length ? atoi(content_length) : 0;
}
string getRemoteAddr() const {
- return pblock_findval("ip", m_sn->client);
+ string ret = AbstractSPRequest::getRemoteAddr();
+ return ret.empty() ? pblock_findval("ip", m_sn->client) : ret;
}
void log(SPLogLevel level, const string& msg) const {
AbstractSPRequest::log(level,msg);
if (level>=SPError)
log_error(LOG_FAILURE, "nsapi_shib", m_sn, m_rq, const_cast<char*>(msg.c_str()));
}
- const char* getQueryString() const {
+ const char* getQueryString() const {
return pblock_findval("query", m_rq->reqpb);
}
const char* getRequestBody() const {
if (m_gotBody)
return m_body.c_str();
char* content_length=NULL;
- if (request_header("content-length", &content_length, m_sn, m_rq)!=REQ_PROCEED || atoi(content_length) > 1024*1024) // 1MB?
+ if (request_header("content-length", &content_length, m_sn, m_rq) != REQ_PROCEED || !content_length) {
+ m_gotBody = true;
+ return NULL;
+ }
+ else if (atoi(content_length) > 1024*1024) // 1MB?
throw opensaml::SecurityPolicyException("Blocked request body exceeding 1M size limit.");
else {
char ch=IO_EOF+1;
}
}
void clearHeader(const char* rawname, const char* cginame) {
- if (g_checkSpoofing) {
+ if (g_checkSpoofing && m_firsttime && !m_rq->orig_rq) {
if (m_allhttp.empty()) {
// Populate the set of client-supplied headers for spoof checking.
const pb_entry* entry;
if (m_allhttp.count(cginame) > 0)
throw opensaml::SecurityPolicyException("Attempt to spoof header ($1) was detected.", params(1, rawname));
}
- param_free(pblock_remove(rawname, m_rq->headers));
- pblock_nvinsert(rawname, g_unsetHeaderValue.c_str(), m_rq->headers);
+ if (strcmp(rawname, "REMOTE_USER") == 0) {
+ param_free(pblock_remove("remote-user", m_rq->headers));
+ pblock_nvinsert("remote-user", g_unsetHeaderValue.c_str(), m_rq->headers);
+ }
+ else {
+ param_free(pblock_remove(rawname, m_rq->headers));
+ pblock_nvinsert(rawname, g_unsetHeaderValue.c_str(), m_rq->headers);
+ }
}
void setHeader(const char* name, const char* value) {
param_free(pblock_remove(name, m_rq->headers));
}
void setRemoteUser(const char* user) {
pblock_nvinsert("auth-user", user, m_rq->vars);
+ param_free(pblock_remove("remote-user", m_rq->headers));
+ pblock_nvinsert("remote-user", user, m_rq->headers);
}
string getRemoteUser() const {
const char* ru = pblock_findval("auth-user", m_rq->vars);
return ru ? ru : "";
}
+ void setAuthType(const char* authtype) {
+ param_free(pblock_remove("auth-type", m_rq->vars));
+ if (authtype)
+ pblock_nvinsert("auth-type", authtype, m_rq->vars);
+ }
+ string getAuthType() const {
+ const char* at = pblock_findval("auth-type", m_rq->vars);
+ return at ? at : "";
+ }
+ void setContentType(const char* type) {
+ // iPlanet seems to have a case folding problem.
+ param_free(pblock_remove("content-type", m_rq->srvhdrs));
+ setResponseHeader("Content-Type", type);
+ }
void setResponseHeader(const char* name, const char* value) {
+ HTTPResponse::setResponseHeader(name, value);
pblock_nvinsert(name, value, m_rq->srvhdrs);
}
return REQ_EXIT;
}
long sendRedirect(const char* url) {
+ HTTPResponse::sendRedirect(url);
param_free(pblock_remove("content-type", m_rq->srvhdrs));
pblock_nninsert("content-length", 0, m_rq->srvhdrs);
pblock_nvinsert("expires", "01-Jan-1997 12:00:00 GMT", m_rq->srvhdrs);
}
return m_certs;
}
-
- pblock* m_pb;
- ::Session* m_sn;
- Request* m_rq;
};
/********************************************************************************/
// Check user authentication
pair<bool,long> res = stn.getServiceProvider().doAuthentication(stn);
+ // If directed, install a spoof key to recognize when we've already cleared headers.
+ if (!g_spoofKey.empty()) {
+ param_free(pblock_remove("Shib-Spoof-Check", rq->headers));
+ pblock_nvinsert("Shib-Spoof-Check", g_spoofKey.c_str(), rq->headers);
+ }
if (res.first) return (int)res.second;
// user authN was okay -- export the assertions now
param_free(pblock_remove("auth-user",rq->vars));
- // This seems to be required in order to eventually set
- // the auth-user var.
- pblock_nvinsert("auth-type","shibboleth",rq->vars);
+
res = stn.getServiceProvider().doExport(stn);
if (res.first) return (int)res.second;
log_error(LOG_FAILURE,FUNC,sn,rq,const_cast<char*>(e.what()));
return WriteClientError(sn, rq, FUNC, "Shibboleth module threw an exception, see web server log for error.");
}
-#ifndef _DEBUG
catch (...) {
- return WriteClientError(sn, rq, FUNC, "Shibboleth module threw an uncaught exception.");
+ log_error(LOG_FAILURE,FUNC,sn,rq,const_cast<char*>("Shibboleth module threw an unknown exception."));
+ if (g_catchAll)
+ return WriteClientError(sn, rq, FUNC, "Shibboleth module threw an unknown exception.");
+ throw;
}
-#endif
}
log_error(LOG_FAILURE,FUNC,sn,rq,const_cast<char*>(e.what()));
return WriteClientError(sn, rq, FUNC, "Shibboleth handler threw an exception, see web server log for error.");
}
-#ifndef _DEBUG
catch (...) {
- return WriteClientError(sn, rq, FUNC, "Shibboleth handler threw an unknown exception.");
+ log_error(LOG_FAILURE,FUNC,sn,rq,"unknown exception caught in Shibboleth handler");
+ if (g_catchAll)
+ return WriteClientError(sn, rq, FUNC, "Shibboleth handler threw an unknown exception.");
+ throw;
}
-#endif
}
Lockable* lock() { return m_mapper->lock(); }
void unlock() { m_stKey->setData(NULL); m_propsKey->setData(NULL); m_mapper->unlock(); }
Settings getSettings(const HTTPRequest& request) const;
-
+
const PropertySet* getParent() const { return NULL; }
void setParent(const PropertySet*) {}
pair<bool,bool> getBool(const char* name, const char* ns=NULL) const;
pair<bool,unsigned int> getUnsignedInt(const char* name, const char* ns=NULL) const;
pair<bool,int> getInt(const char* name, const char* ns=NULL) const;
void getAll(map<string,const char*>& properties) const;
- const PropertySet* getPropertySet(const char* name, const char* ns="urn:mace:shibboleth:2.0:native:sp:config") const;
+ const PropertySet* getPropertySet(const char* name, const char* ns=shibspconstants::ASCII_SHIB2SPCONFIG_NS) const;
const xercesc::DOMElement* getElement() const;
private:
const PropertySet* s=reinterpret_cast<const PropertySet*>(m_propsKey->getData());
if (s)
s->getAll(properties);
+ if (!stn)
+ return;
properties["authType"] = "shibboleth";
const pb_entry* entry;
for (int i=0; i<stn->m_pb->hsize; ++i) {
projects / shibboleth / sp.git / blobdiff