1 files changed, 38 insertions, 15 deletions

diff --git a/lib/discovery.cc b/lib/discovery.cc
index bd1f917..b4ed3b6 100644
--- a/lib/discovery.cc
+++ b/lib/discovery.cc
@@ -254,64 +254,65 @@ namespace opkele {
 			if(!td)
 			    throw exception_tidy(OPKELE_CP_ "failed to create htmltidy document");
 #ifdef NDEBUG
 			td.opt_set(TidyQuiet,true);
 			td.opt_set(TidyShowWarnings,false);
 #else /* NDEBUG */
 			td.opt_set(TidyQuiet,false);
 			td.opt_set(TidyShowWarnings,true);
 #endif /* NDEBUG */
 			td.opt_set(TidyForceOutput,true);
 			td.opt_set(TidyXhtmlOut,true);
 			td.opt_set(TidyDoctypeMode,TidyDoctypeOmit);
 			td.opt_set(TidyMark,false);
 			td.opt_set(TidyNumEntities,true);
 			if(td.parse_string(save_html)<=0)
 			    throw exception_tidy(OPKELE_CP_ "tidy failed to parse document");
 			if(td.clean_and_repair()<=0)
 			    throw exception_tidy(OPKELE_CP_ "tidy failed to clean and repair");
 			util::tidy_buf_t tide;
 			if(td.save_buffer(tide)<=0)
 			    throw exception_tidy(OPKELE_CP_ "tidy failed to save buffer");
 			prepare_to_parse();
 			parse(tide.c_str(),tide.size(),true);
 		    }catch(exception_tidy& et) { }
 		}
 		save_html.clear();
 	    }
 
 	    void prepare_to_parse() {
 		(*(expat_t*)this) = parser_create_ns();
 		set_user_data(); set_element_handler();
 		set_character_data_handler();
+		set_unknown_encoding_handler();
 
 		if(xmode&xmode_html) {
 		    html_openid1.clear(); html_openid2.clear();
 		    parser_choked = false;
 		}
 
 		cdata = 0; xrd_service = 0; skipping = 0;
 		pt_stack.clear();
 		status_code = 100; status_string.clear();
 	    }
 
 	    void html2xrd(endpoint_discovery_iterator& oi,idiscovery_t& id) {
 		XRD_t& x = id.xrd;
 		if(!html_openid2.uris.empty()) {
 		    html_openid2.types.insert(STURI_OPENID20);
 		    x.services.add(-1,html_openid2);
 		    queue_endpoints(oi,id,&op_service_types[st_index_2]);
 		}
 		if(!html_openid1.uris.empty()) {
 		    html_openid1.types.insert(STURI_OPENID11);
 		    x.services.add(-1,html_openid1);
 		    queue_endpoints(oi,id,&op_service_types[st_index_1]);
 		}
 	    }
 
 	    size_t write(void *p,size_t s,size_t nm) {
 		/* TODO: limit total size */
 		size_t bytes = s*nm;
 		const char *inbuf = (const char*)p;
 		if(xmode&xmode_html) {
 		    size_t mbts = save_html.capacity()-save_html.size();
 		    size_t bts = 0;
@@ -424,83 +425,98 @@ namespace opkele {
 				cdata_buf.clear();
 				cdata = &cdata_buf;
 			    }else if(is_qelement(n,NSURI_XRD "\tURI")) {
 				assert(xrd); assert(xrd_service);
 				const char *append = element_attr(a,"append");
 				xrd::uri_t& uri = xrd_service->uris.add(element_priority(a),xrd::uri_t("",append?append:""));
 				cdata = &uri.uri;
 			    }else if(is_qelement(n,NSURI_XRD "\tLocalID")
 				    || is_qelement(n,NSURI_OPENID10 "\tDelegate") ) {
 				assert(xrd); assert(xrd_service);
 				cdata = &(xrd_service->local_ids.add(element_priority(a),string()));
 			    }else if(is_qelement(n,NSURI_XRD "\tProviderID")) {
 				    assert(xrd); assert(xrd_service);
 				    cdata = &(xrd_service->provider_id);
 			    }else{
 				skipping = 1;
 			    }
 			}else
 			    skipping = 1;
 		    }else if(xmode&xmode_html) {
 			html_start_element(n,a);
 		    }else{
 			skipping = 1;
 		    }
 		}
 	    }
 	    void end_element(const XML_Char *n) {
 		if(skipping<0) return;
 		if(skipping) {
 		    --skipping; return;
 		}
 		if(is_qelement(n,NSURI_XRD "\tType")) {
-		    assert(xrd); assert(xrd_service); assert(cdata==&cdata_buf);
-		    xrd_service->types.insert(cdata_buf);
+		    if(xrd && xrd_service) {
+			assert(cdata==&cdata_buf);
+			xrd_service->types.insert(cdata_buf);
+		    }
 		}else if(is_qelement(n,NSURI_XRD "\tService")) {
-		    assert(xrd); assert(xrd_service);
-		    assert(!pt_stack.empty());
-		    assert(pt_stack.back()==(NSURI_XRD "\tService"));
-		    pt_stack.pop_back();
-		    xrd_service = 0;
-		}else if(is_qelement(n,NSURI_XRD "\tStatus")) {
-		    assert(xrd);
-		    if(is_qelement(pt_stack.back().c_str(),n)) {
-			assert(cdata==&status_string);
+		    if(!(xrd && xrd_service)) {
+			skipping = -1;
+		    }else{
+			assert(!pt_stack.empty());
+			assert(pt_stack.back()==(NSURI_XRD "\tService"));
 			pt_stack.pop_back();
-			if(status_code!=100)
-			    skipping = -1;
+			xrd_service = 0;
+		    }
+		}else if(is_qelement(n,NSURI_XRD "\tStatus")) {
+		    if(!xrd) {
+			skipping=-1;
+		    }else{
+			if(is_qelement(pt_stack.back().c_str(),n)) {
+			    assert(cdata==&status_string);
+			    pt_stack.pop_back();
+			    if(status_code!=100)
+				skipping = -1;
+			}
 		    }
 		}else if(is_qelement(n,NSURI_XRD "\tExpires")) {
-		    assert(xrd);
-		    xrd->expires = util::w3c_to_time(cdata_buf);
+		    if(!xrd) {
+			skipping=-1;
+		    }else{
+			xrd->expires = util::w3c_to_time(cdata_buf);
+		    }
+		}else if(is_qelement(n,NSURI_XRD "\tXRD")) {
+		    assert(!pt_stack.empty());
+		    assert(pt_stack.back()==(NSURI_XRD "\tXRD"));
+		    pt_stack.pop_back();
 		}else if((xmode&xmode_html) && is_element(n,"head")) {
 		    skipping = -1;
 		}
 		cdata = 0;
 	    }
 	    void character_data(const XML_Char *s,int l) {
 		if(skipping) return;
 		if(cdata) cdata->append(s,l);
 	    }
 
 	    void html_start_element(const XML_Char *n,const XML_Char **a) {
 		if(is_element(n,"meta")) {
 		    bool heq = false;
 		    string l;
 		    for(;*a;a+=2) {
 			if(!( strcasecmp(a[0],"http-equiv")
 				|| strcasecmp(a[1],XRDS_HEADER) ))
 			    heq = true;
 			else if(!strcasecmp(a[0],"content"))
 			    l.assign(a[1]);
 		    }
 		    if(heq)
 			xrds_location = l;
 		}else if(is_element(n,"link")) {
 		    string rels;
 		    string href;
 		    for(;*a;a+=2) {
 			if( !strcasecmp(a[0],"rel") ) {
 			    rels.assign(a[1]);
 			}else if( !strcasecmp(a[0],"href") ) {
 			    const char *ns = a[1];
 			    for(;*ns && isspace(*ns);++ns) ;
@@ -540,48 +556,55 @@ namespace opkele {
 		openid_endpoint_t ep;
 		ep.claimed_id = id.canonicalized_id;
 		for(xrd::services_t::const_iterator isvc=id.xrd.services.begin();
 			isvc!=id.xrd.services.end(); ++isvc) {
 		    const xrd::service_t svc = isvc->second;
 		    if(svc.types.find(st->uri)==svc.types.end()) continue;
 		    for(xrd::uris_t::const_iterator iu=svc.uris.begin();iu!=svc.uris.end();++iu) {
 			ep.uri = iu->second.uri;
 			if(id.xri_identity) {
 			    if(iu->second.append=="qxri") {
 				ep.uri += id.normalized_id;
 			    } /* TODO: else handle other append attribute values */
 			}
 			if(st->forceid) {
 			    ep.local_id = ep.claimed_id = st->forceid;
 			    *(oi++) = ep;
 			}else{
 			    if(svc.local_ids.empty()) {
 				ep.local_id = ep.claimed_id;
 				*(oi++) = ep;
 			    }else{
 				for(xrd::local_ids_t::const_iterator ilid=svc.local_ids.begin();
 					ilid!=svc.local_ids.end(); ++ilid) {
 				    ep.local_id = ilid->second;
 				    *(oi++) = ep;
 				}
 			    }
 			}
 		    }
 		}
 	    }
 
+	    int unknown_encoding(const XML_Char* /* n */,XML_Encoding *i) {
+		for(unsigned int ii=0;ii < sizeof(i->map)/sizeof(i->map[0]);++ii)
+		    i->map[ii] = ii;
+		i->convert = 0; i->release = 0;
+		return XML_STATUS_OK;
+	    }
+
     };
 
     string idiscover(endpoint_discovery_iterator oi,const string& identity) {
 	idigger_t idigger;
 	return idigger.discover(oi,identity);
     }
 
     void yadiscover(endpoint_discovery_iterator oi,const string& yurl,const char **types,bool redirs) try {
 	idigger_t idigger;
 	idigger.yadiscover(oi,yurl,types,redirs);
     }catch(exception_curl& ec) {
 	if(redirs || ec._error!=CURLE_TOO_MANY_REDIRECTS)
 	    throw;
     }
 
 }