Fixed bug in Generic Frontend Server that could cause a server to stop
[yaz-moved-to-github.git] / src / seshigh.c
index 75f2e73..5132309 100644 (file)
@@ -2,7 +2,7 @@
  * Copyright (C) 1995-2005, Index Data ApS
  * See the file LICENSE for details.
  *
- * $Id: seshigh.c,v 1.70 2006-03-15 14:12:26 marc Exp $
+ * $Id: seshigh.c,v 1.98 2006-09-06 09:35:41 adam Exp $
  */
 /**
  * \file seshigh.c
@@ -50,7 +50,7 @@
 #include <unistd.h>
 #endif
 
-#if HAVE_XML2
+#if YAZ_HAVE_XML2
 #include <libxml/parser.h>
 #include <libxml/tree.h>
 #endif
@@ -102,7 +102,8 @@ static Z_APDU *process_ESRequest(association *assoc, request *reqb, int *fd);
 
 /* dynamic logging levels */
 static int logbits_set = 0;
-static int log_session = 0; 
+static int log_session = 0; /* one-line logs for session */
+static int log_sessiondetail = 0; /* more detailed stuff */
 static int log_request = 0; /* one-line logs for requests */
 static int log_requestdetail = 0;  /* more detailed stuff */
 
@@ -113,16 +114,24 @@ static void get_logbits()
     {
         logbits_set = 1;
         log_session = yaz_log_module_level("session"); 
-        log_request = yaz_log_module_level("request"); 
+        log_sessiondetail = yaz_log_module_level("sessiondetail");
+        log_request = yaz_log_module_level("request");
         log_requestdetail = yaz_log_module_level("requestdetail"); 
     }
 }
 
+
+
 static void wr_diag(WRBUF w, int error, const char *addinfo)
 {
-    wrbuf_printf(w, "ERROR [%d] %s%s%s",
-                 error, diagbib1_str(error),
-                 addinfo ? "--" : "", addinfo ? addinfo : "");
+    wrbuf_printf(w, "ERROR %d+", error);
+    wrbuf_puts_replace_char(w, diagbib1_str(error), ' ', '_');
+    if (addinfo){
+        wrbuf_puts(w, "+");
+        wrbuf_puts_replace_char(w, addinfo, ' ', '_');
+    }
+    
+    wrbuf_puts(w, " ");    
 }
 
 
@@ -184,8 +193,7 @@ association *create_association(IOCHAN channel, COMSTACK link,
     request_initq(&anew->incoming);
     request_initq(&anew->outgoing);
     anew->proto = cs_getproto(link);
-    anew->cql_transform = 0;
-    anew->server_node_ptr = 0;
+    anew->server = 0;
     return anew;
 }
 
@@ -285,7 +293,8 @@ void ir_session(IOCHAN h, int event)
         }
         else
         {
-            yaz_log(log_session, "Session idle too long. Sending close.");
+            yaz_log(log_sessiondetail, 
+                    "Session idle too long. Sending close.");
             do_close(assoc, Z_Close_lackOfActivity, 0);
         }
         return;
@@ -323,17 +332,27 @@ void ir_session(IOCHAN h, int event)
             /* We aren't speaking to this fellow */
             if (assoc->state == ASSOC_DEAD)
             {
-                yaz_log(log_session, "Connection closed - end of session");
+                yaz_log(log_sessiondetail, "Connection closed - end of session");
                 cs_close(conn);
                 destroy_association(assoc);
                 iochan_destroy(h);
                 return;
             }
             assoc->cs_get_mask = EVENT_INPUT;
-            if ((res = cs_get(conn, &assoc->input_buffer,
-                &assoc->input_buffer_len)) <= 0)
+            res = cs_get(conn, &assoc->input_buffer,
+                &assoc->input_buffer_len);
+            if (res < 0 && cs_errno(conn) == CSBUFSIZE)
             {
-                yaz_log(log_session, "Connection closed by client");
+                yaz_log(log_session, "Connection error: %s res=%d",
+                        cs_errmsg(cs_errno(conn)), res);
+                req = request_get(&assoc->incoming); /* get a new request */
+                do_close_req(assoc, Z_Close_protocolError, 
+                             "Incoming package too large", req);
+                return;
+            }
+            else if (res <= 0)
+            {
+                yaz_log(log_sessiondetail, "Connection closed by client");
                 cs_close(conn);
                 destroy_association(assoc);
                 iochan_destroy(h);
@@ -360,16 +379,16 @@ void ir_session(IOCHAN h, int event)
             if (!z_GDU(assoc->decode, &req->gdu_request, 0, 0))
             {
                 yaz_log(YLOG_WARN, "ODR error on incoming PDU: %s [element %s] "
-                        "[near byte %d] ",
+                        "[near byte %ld] ",
                         odr_errmsg(odr_geterror(assoc->decode)),
                         odr_getelement(assoc->decode),
-                        odr_offset(assoc->decode));
+                        (long) odr_offset(assoc->decode));
                 if (assoc->decode->error != OHTTP)
                 {
                     yaz_log(YLOG_WARN, "PDU dump:");
                     odr_dumpBER(yaz_log_file(), assoc->input_buffer, res);
                     request_release(req);
-                    do_close(assoc, Z_Close_protocolError,"Malformed package");
+                    do_close(assoc, Z_Close_protocolError, "Malformed package");
                 }
                 else
                 {
@@ -408,7 +427,7 @@ void ir_session(IOCHAN h, int event)
         switch (res = cs_put(conn, req->response, req->len_response))
         {
         case -1:
-            yaz_log(log_session, "Connection closed by client");
+            yaz_log(log_sessiondetail, "Connection closed by client");
             cs_close(conn);
             destroy_association(assoc);
             iochan_destroy(h);
@@ -488,7 +507,7 @@ static void assoc_init_reset(association *assoc)
     yaz_log(log_requestdetail, "peer %s", assoc->init->peer_name);
 }
 
-static int srw_bend_init(association *assoc, Z_SRW_diagnostic **d, int *num)
+static int srw_bend_init(association *assoc, Z_SRW_diagnostic **d, int *num, Z_SRW_PDU *sr)
 {
     statserv_options_block *cb = statserv_getcontrol();
     if (!assoc->init)
@@ -497,11 +516,28 @@ static int srw_bend_init(association *assoc, Z_SRW_diagnostic **d, int *num)
         Z_External *ce;
         bend_initresult *binitres;
 
-        yaz_log(YLOG_LOG, "srw_bend_init config=%s", cb->configname);
+        yaz_log(log_requestdetail, "srw_bend_init config=%s", cb->configname);
         assoc_init_reset(assoc);
         
-        assoc->maximumRecordSize = 3000000;
-        assoc->preferredMessageSize = 3000000;
+        if (sr->username)
+        {
+            Z_IdAuthentication *auth = odr_malloc(assoc->decode, sizeof(*auth));
+            int len;
+
+            len = strlen(sr->username) + 1;
+            if (sr->password) 
+                len += strlen(sr->password) + 2;
+            auth->which = Z_IdAuthentication_open;
+            auth->u.open = odr_malloc(assoc->decode, len);
+            strcpy(auth->u.open, sr->username);
+            if (sr->password && *sr->password)
+            {
+                strcat(auth->u.open, "/");
+                strcat(auth->u.open, sr->password);
+            }
+            assoc->init->auth = auth;
+        }
+
 #if 1
         ce = yaz_set_proposal_charneg(assoc->decode, &encoding, 1, 0, 0, 1);
         assoc->init->charneg_request = ce->u.charNeg3;
@@ -515,10 +551,12 @@ static int srw_bend_init(association *assoc, Z_SRW_diagnostic **d, int *num)
             return 0;
         }
         assoc->backend = binitres->handle;
+        assoc->init->auth = 0;
         if (binitres->errcode)
         {
+            int srw_code = yaz_diag_bib1_to_srw(binitres->errcode);
             assoc->state = ASSOC_DEAD;
-            yaz_add_srw_diagnostic(assoc->encode, d, num, binitres->errcode,
+            yaz_add_srw_diagnostic(assoc->encode, d, num, srw_code,
                                    binitres->errstring);
             return 0;
         }
@@ -527,9 +565,140 @@ static int srw_bend_init(association *assoc, Z_SRW_diagnostic **d, int *num)
     return 1;
 }
 
+static const char *get_esn(Z_RecordComposition *comp)
+{
+    if (comp && comp->which == Z_RecordComp_complex)
+    {
+        if (comp->u.complex->generic 
+            && comp->u.complex->generic->elementSpec
+            && (comp->u.complex->generic->elementSpec->which == 
+                Z_ElementSpec_elementSetName))
+            return comp->u.complex->generic->elementSpec->u.elementSetName;
+    }
+    else if (comp && comp->which == Z_RecordComp_simple &&
+             comp->u.simple->which == Z_ElementSetNames_generic)
+        return comp->u.simple->u.generic;
+    return 0;
+}
+
+static void set_esn(Z_RecordComposition **comp_p, const char *esn, NMEM nmem)
+{
+    Z_RecordComposition *comp = nmem_malloc(nmem, sizeof(*comp));
+    
+    comp->which = Z_RecordComp_simple;
+    comp->u.simple = nmem_malloc(nmem, sizeof(*comp->u.simple));
+    comp->u.simple->which = Z_ElementSetNames_generic;
+    comp->u.simple->u.generic = nmem_strdup(nmem, esn);
+    *comp_p = comp;
+}
+
+static int retrieve_fetch(association *assoc, bend_fetch_rr *rr)
+{
+#if YAZ_HAVE_XML2
+    yaz_record_conv_t rc = 0;
+    const char *match_schema = 0;
+    int *match_syntax = 0;
+
+    if (assoc->server)
+    {
+        int r;
+        const char *input_schema = get_esn(rr->comp);
+        Odr_oid *input_syntax_raw = rr->request_format_raw;
+        
+        const char *backend_schema = 0;
+        Odr_oid *backend_syntax = 0;
+
+        r = yaz_retrieval_request(assoc->server->retrieval,
+                                  input_schema,
+                                  input_syntax_raw,
+                                  &match_schema,
+                                  &match_syntax,
+                                  &rc,
+                                  &backend_schema,
+                                  &backend_syntax);
+        if (r == -1) /* error ? */
+        {
+            const char *details = yaz_retrieval_get_error(
+                assoc->server->retrieval);
+
+            rr->errcode = YAZ_BIB1_SYSTEM_ERROR_IN_PRESENTING_RECORDS;
+            if (details)
+                rr->errstring = odr_strdup(rr->stream, details);
+            return -1;
+        }
+        else if (r == 1 || r == 3)
+        {
+            const char *details = input_schema;
+            rr->errcode =  YAZ_BIB1_ELEMENT_SET_NAMES_UNSUPP;
+            if (details)
+                rr->errstring = odr_strdup(rr->stream, details);
+            return -1;
+        }
+        else if (r == 2)
+        {
+            rr->errcode = YAZ_BIB1_RECORD_SYNTAX_UNSUPP;
+            if (input_syntax_raw)
+            {
+                char oidbuf[OID_STR_MAX];
+                oid_to_dotstring(input_syntax_raw, oidbuf);
+                rr->errstring = odr_strdup(rr->stream, oidbuf);
+            }
+            return -1;
+        }
+        if (backend_schema)
+        {
+            set_esn(&rr->comp, backend_schema, rr->stream->mem);
+        }
+        if (backend_syntax)
+        {
+            oident *oident_syntax = oid_getentbyoid(backend_syntax);
+
+            rr->request_format_raw = backend_syntax;
+            
+            if (oident_syntax)
+                rr->request_format = oident_syntax->value;
+            else
+                rr->request_format = VAL_NONE;
+        }
+    }
+    (*assoc->init->bend_fetch)(assoc->backend, rr);
+    if (rc && rr->record && rr->errcode == 0 && rr->len > 0)
+    {   /* post conversion must take place .. */
+        WRBUF output_record = wrbuf_alloc();
+        int r = yaz_record_conv_record(rc, rr->record, rr->len, output_record);
+        if (r)
+        {
+            const char *details = yaz_record_conv_get_error(rc);
+            rr->errcode = YAZ_BIB1_SYSTEM_ERROR_IN_PRESENTING_RECORDS;
+            if (details)
+                rr->errstring = odr_strdup(rr->stream, details);
+        }
+        else
+        {
+            rr->len = wrbuf_len(output_record);
+            rr->record = odr_malloc(rr->stream, rr->len);
+            memcpy(rr->record, wrbuf_buf(output_record), rr->len);
+        }
+        wrbuf_free(output_record, 1);
+    }
+    if (match_syntax)
+    {
+        struct oident *oi = oid_getentbyoid(match_syntax);
+        rr->output_format = oi ? oi->value : VAL_NONE;
+        rr->output_format_raw = match_syntax;
+    }
+    if (match_schema)
+        rr->schema = odr_strdup(rr->stream, match_schema);
+    return 0;
+#else
+    (*assoc->init->bend_fetch)(assoc->backend, rr);
+#endif
+}
+
 static int srw_bend_fetch(association *assoc, int pos,
                           Z_SRW_searchRetrieveRequest *srw_req,
-                          Z_SRW_record *record)
+                          Z_SRW_record *record,
+                          const char **addinfo)
 {
     bend_fetch_rr rr;
     ODR o = assoc->encode;
@@ -539,7 +708,7 @@ static int srw_bend_fetch(association *assoc, int pos,
     rr.referenceId = 0;
     rr.request_format = VAL_TEXT_XML;
     rr.request_format_raw = yaz_oidval_to_z3950oid(assoc->decode,
-                                                   CLASS_TRANSYN,
+                                                   CLASS_RECSYN,
                                                    VAL_TEXT_XML);
     rr.comp = (Z_RecordComposition *)
             odr_malloc(assoc->decode, sizeof(*rr.comp));
@@ -580,8 +749,6 @@ static int srw_bend_fetch(association *assoc, int pos,
     rr.len = 0;
     rr.record = 0;
     rr.last_in_set = 0;
-    rr.output_format = VAL_TEXT_XML;
-    rr.output_format_raw = 0;
     rr.errcode = 0;
     rr.errstring = 0;
     rr.surrogate_flag = 0;
@@ -590,7 +757,7 @@ static int srw_bend_fetch(association *assoc, int pos,
     if (!assoc->init->bend_fetch)
         return 1;
 
-    (*assoc->init->bend_fetch)(assoc->backend, &rr);
+    retrieve_fetch(assoc, &rr);
 
     if (rr.errcode && rr.surrogate_flag)
     {
@@ -630,7 +797,12 @@ static int srw_bend_fetch(association *assoc, int pos,
         else
             record->recordSchema = 0;
     }
-    return rr.errcode;
+    if (rr.errcode)
+    {
+        *addinfo = rr.errstring;
+        return rr.errcode;
+    }
+    return 0;
 }
 
 static int cql2pqf(ODR odr, const char *cql, cql_transform_t ct,
@@ -641,7 +813,7 @@ static int cql2pqf(ODR odr, const char *cql, cql_transform_t ct,
     int r;
     int srw_errcode = 0;
     const char *add = 0;
-    char rpn_buf[512];
+    char rpn_buf[5120];
             
     r = cql_parser_string(cp, cql);
     if (r)
@@ -707,16 +879,17 @@ static int cql2pqf_scan(ODR odr, const char *cql, cql_transform_t ct,
 }
                    
 static void srw_bend_search(association *assoc, request *req,
-                            Z_SRW_searchRetrieveRequest *srw_req,
+                            Z_SRW_PDU *sr,
                             Z_SRW_searchRetrieveResponse *srw_res,
                             int *http_code)
 {
     int srw_error = 0;
     Z_External *ext;
+    Z_SRW_searchRetrieveRequest *srw_req = sr->u.request;
     
     *http_code = 200;
     yaz_log(log_requestdetail, "Got SRW SearchRetrieveRequest");
-    srw_bend_init(assoc, &srw_res->diagnostics, &srw_res->num_diagnostics);
+    srw_bend_init(assoc, &srw_res->diagnostics, &srw_res->num_diagnostics, sr);
     if (srw_res->num_diagnostics == 0 && assoc->init)
     {
         bend_search_rr rr;
@@ -733,10 +906,11 @@ static void srw_bend_search(association *assoc, request *req,
         
         if (srw_req->query_type == Z_SRW_query_type_cql)
         {
-            if (assoc->cql_transform)
+            if (assoc->server && assoc->server->cql_transform)
             {
                 int srw_errcode = cql2pqf(assoc->encode, srw_req->query.cql,
-                                          assoc->cql_transform, rr.query);
+                                          assoc->server->cql_transform,
+                                          rr.query);
                 if (srw_errcode)
                 {
                     yaz_add_srw_diagnostic(assoc->encode,
@@ -774,8 +948,8 @@ static void srw_bend_search(association *assoc, request *req,
                 const char *pqf_msg;
                 size_t off;
                 int code = yaz_pqf_error (pqf_parser, &pqf_msg, &off);
-                yaz_log(log_requestdetail, "Parse error %d %s near offset %d",
-                        code, pqf_msg, off);
+                yaz_log(log_requestdetail, "Parse error %d %s near offset %ld",
+                        code, pqf_msg, (long) off);
                 srw_error = YAZ_SRW_QUERY_SYNTAX_ERROR;
             }
             
@@ -851,50 +1025,102 @@ static void srw_bend_search(association *assoc, request *req,
                     }
                     else
                     {
-                        int j = 0;
-                        int packing = Z_SRW_recordPacking_string;
+                        int ok = 1;
                         if (start + number > rr.hits)
                             number = rr.hits - start + 1;
-                        if (srw_req->recordPacking){
-                            if (!strcmp(srw_req->recordPacking, "xml"))
-                                packing = Z_SRW_recordPacking_XML;
-                            if (!strcmp(srw_req->recordPacking, "url"))
-                                packing = Z_SRW_recordPacking_URL;
-                        }
-                        srw_res->records = (Z_SRW_record *)
-                            odr_malloc(assoc->encode,
-                                       number * sizeof(*srw_res->records));
-                        
-                        srw_res->extra_records = (Z_SRW_extra_record **)
-                            odr_malloc(assoc->encode,
-                                       number*sizeof(*srw_res->extra_records));
-
-                        for (i = 0; i<number; i++)
+
+                        /* Call bend_present if defined */
+                        if (assoc->init->bend_present)
                         {
-                            int errcode;
+                            bend_present_rr *bprr = (bend_present_rr*)
+                                odr_malloc (assoc->decode, sizeof(*bprr));
+                            bprr->setname = "default";
+                            bprr->start = start;
+                            bprr->number = number;
+                            bprr->format = VAL_TEXT_XML;
+                            if (srw_req->recordSchema)
+                            {
+                                bprr->comp = (Z_RecordComposition *) odr_malloc(assoc->decode,
+                                        sizeof(*bprr->comp));
+                                bprr->comp->which = Z_RecordComp_simple;
+                                bprr->comp->u.simple = (Z_ElementSetNames *)
+                                    odr_malloc(assoc->decode, sizeof(Z_ElementSetNames));
+                                bprr->comp->u.simple->which = Z_ElementSetNames_generic;
+                                bprr->comp->u.simple->u.generic = srw_req->recordSchema;
+                            }
+                            else
+                            {
+                                bprr->comp = 0;
+                            }
+                            bprr->stream = assoc->encode;
+                            bprr->referenceId = 0;
+                            bprr->print = assoc->print;
+                            bprr->request = req;
+                            bprr->association = assoc;
+                            bprr->errcode = 0;
+                            bprr->errstring = NULL;
+                            (*assoc->init->bend_present)(assoc->backend, bprr);
                             
-                            srw_res->records[j].recordPacking = packing;
-                            srw_res->records[j].recordData_buf = 0;
-                            srw_res->extra_records[j] = 0;
-                            yaz_log(YLOG_DEBUG, "srw_bend_fetch %d", i+start);
-                            errcode = srw_bend_fetch(assoc, i+start, srw_req,
-                                                     srw_res->records + j);
-                            if (errcode)
+                            if (!bprr->request)
+                                return;
+                            if (bprr->errcode)
                             {
+                                srw_error = yaz_diag_bib1_to_srw (bprr->errcode);
                                 yaz_add_srw_diagnostic(assoc->encode,
                                                        &srw_res->diagnostics,
                                                        &srw_res->num_diagnostics,
-                                                       yaz_diag_bib1_to_srw (errcode),
-                                                       rr.errstring);
+                                                       srw_error, bprr->errstring);
+                                ok = 0;
+                            }
+                        }
+
+                        if (ok)
+                        {
+                            int j = 0;
+                            int packing = Z_SRW_recordPacking_string;
+                            if (srw_req->recordPacking){
+                                if (!strcmp(srw_req->recordPacking, "xml"))
+                                    packing = Z_SRW_recordPacking_XML;
+                                if (!strcmp(srw_req->recordPacking, "url"))
+                                    packing = Z_SRW_recordPacking_URL;
+                            }
+                            srw_res->records = (Z_SRW_record *)
+                                odr_malloc(assoc->encode,
+                                           number * sizeof(*srw_res->records));
+                            
+                            srw_res->extra_records = (Z_SRW_extra_record **)
+                                odr_malloc(assoc->encode,
+                                           number*sizeof(*srw_res->extra_records));
+
+                            for (i = 0; i<number; i++)
+                            {
+                                int errcode;
+                                const char *addinfo = 0;
                                 
-                                break;
+                                srw_res->records[j].recordPacking = packing;
+                                srw_res->records[j].recordData_buf = 0;
+                                srw_res->extra_records[j] = 0;
+                                yaz_log(YLOG_DEBUG, "srw_bend_fetch %d", i+start);
+                                errcode = srw_bend_fetch(assoc, i+start, srw_req,
+                                                         srw_res->records + j,
+                                                         &addinfo);
+                                if (errcode)
+                                {
+                                    yaz_add_srw_diagnostic(assoc->encode,
+                                                           &srw_res->diagnostics,
+                                                           &srw_res->num_diagnostics,
+                                                           yaz_diag_bib1_to_srw (errcode),
+                                                           addinfo);
+                                    
+                                    break;
+                                }
+                                if (srw_res->records[j].recordData_buf)
+                                    j++;
                             }
-                            if (srw_res->records[j].recordData_buf)
-                                j++;
+                            srw_res->num_records = j;
+                            if (!j)
+                                srw_res->records = 0;
                         }
-                        srw_res->num_records = j;
-                        if (!j)
-                            srw_res->records = 0;
                     }
                 }
             }
@@ -918,6 +1144,8 @@ static void srw_bend_search(association *assoc, request *req,
             break;
         }
         wrbuf_printf(wr, "SRWSearch ");
+        wrbuf_printf(wr, srw_req->database);
+        wrbuf_printf(wr, " ");
         if (srw_res->num_diagnostics)
             wrbuf_printf(wr, "ERROR %s", srw_res->diagnostics[0].uri);
         else if (*http_code != 200)
@@ -940,7 +1168,7 @@ static void srw_bend_search(association *assoc, request *req,
 
 static char *srw_bend_explain_default(void *handle, bend_explain_rr *rr)
 {
-#if HAVE_XML2
+#if YAZ_HAVE_XML2
     xmlNodePtr ptr = rr->server_node_ptr;
     if (!ptr)
         return 0;
@@ -975,13 +1203,14 @@ static char *srw_bend_explain_default(void *handle, bend_explain_rr *rr)
 }
 
 static void srw_bend_explain(association *assoc, request *req,
-                             Z_SRW_explainRequest *srw_req,
+                             Z_SRW_PDU *sr,
                              Z_SRW_explainResponse *srw_res,
                              int *http_code)
 {
+    Z_SRW_explainRequest *srw_req = sr->u.explain_request;
     yaz_log(log_requestdetail, "Got SRW ExplainRequest");
     *http_code = 404;
-    srw_bend_init(assoc, &srw_res->diagnostics, &srw_res->num_diagnostics);
+    srw_bend_init(assoc, &srw_res->diagnostics, &srw_res->num_diagnostics, sr);
     if (assoc->init)
     {
         bend_explain_rr rr;
@@ -991,7 +1220,10 @@ static void srw_bend_explain(association *assoc, request *req,
         rr.print = assoc->print;
         rr.explain_buf = 0;
         rr.database = srw_req->database;
-        rr.server_node_ptr = assoc->server_node_ptr;
+        if (assoc->server)
+            rr.server_node_ptr = assoc->server->server_node_ptr;
+        else
+            rr.server_node_ptr = 0;
         rr.schema = "http://explain.z3950.org/dtd/2.0/";
         if (assoc->init->bend_explain)
             (*assoc->init->bend_explain)(assoc->backend, &rr);
@@ -1019,14 +1251,15 @@ static void srw_bend_explain(association *assoc, request *req,
 }
 
 static void srw_bend_scan(association *assoc, request *req,
-                          Z_SRW_scanRequest *srw_req,
+                          Z_SRW_PDU *sr,
                           Z_SRW_scanResponse *srw_res,
                           int *http_code)
 {
+    Z_SRW_scanRequest *srw_req = sr->u.scan_request;
     yaz_log(log_requestdetail, "Got SRW ScanRequest");
 
     *http_code = 200;
-    srw_bend_init(assoc, &srw_res->diagnostics, &srw_res->num_diagnostics);
+    srw_bend_init(assoc, &srw_res->diagnostics, &srw_res->num_diagnostics, sr);
     if (srw_res->num_diagnostics == 0 && assoc->init)
     {
         struct scan_entry *save_entries;
@@ -1088,7 +1321,8 @@ static void srw_bend_scan(association *assoc, request *req,
              (*assoc->init->bend_scan))(assoc->backend, bsrr);
         }
         else if (srw_req->query_type == Z_SRW_query_type_cql
-                 && assoc->init->bend_scan && assoc->cql_transform)
+                 && assoc->init->bend_scan && assoc->server
+                 && assoc->server->cql_transform)
         {
             int srw_error;
             bsrr->scanClause = 0;
@@ -1096,7 +1330,7 @@ static void srw_bend_scan(association *assoc, request *req,
             bsrr->term = odr_malloc(assoc->decode, sizeof(*bsrr->term));
             srw_error = cql2pqf_scan(assoc->encode,
                                      srw_req->scanClause.cql,
-                                     assoc->cql_transform,
+                                     assoc->server->cql_transform,
                                      bsrr->term);
             if (srw_error)
                 yaz_add_srw_diagnostic(assoc->encode, &srw_res->diagnostics,
@@ -1183,34 +1417,44 @@ static void srw_bend_scan(association *assoc, request *req,
             querystr = srw_req->scanClause.cql;
             break;
         default:
-            querytype = "Unknown";
+            querytype = "UNKNOWN";
             querystr = "";
         }
-        wrbuf_printf(wr, "SRWScan %d+%d",
+
+        wrbuf_printf(wr, "SRWScan ");
+        wrbuf_printf(wr, srw_req->database);
+        wrbuf_printf(wr, " ");
+
+        if (srw_res->num_diagnostics)
+            wrbuf_printf(wr, "ERROR %s - ", srw_res->diagnostics[0].uri);
+        else if (srw_res->num_terms)
+            wrbuf_printf(wr, "OK %d - ", srw_res->num_terms);
+        else
+            wrbuf_printf(wr, "OK - - ");
+
+        wrbuf_printf(wr, "%d+%d+0 ",
                      (srw_req->responsePosition ? 
                       *srw_req->responsePosition : 1),
                      (srw_req->maximumTerms ?
                       *srw_req->maximumTerms : 1));
-        if (srw_res->num_diagnostics)
-            wrbuf_printf(wr, " ERROR %s", srw_res->diagnostics[0].uri);
-        else
-            wrbuf_printf(wr, " OK -");
-        wrbuf_printf(wr, " %s: %s", querytype, querystr);
-        yaz_log(log_request, "%s", wrbuf_buf(wr) );
+        /* there is no step size in SRU/W ??? */
+        wrbuf_printf(wr, "%s: %s ", querytype, querystr);
+        yaz_log(log_request, "%s ", wrbuf_buf(wr) );
         wrbuf_free(wr, 1);
     }
 
 }
 
 static void srw_bend_update(association *assoc, request *req,
-                           Z_SRW_updateRequest *srw_req,
+                           Z_SRW_PDU *sr,
                            Z_SRW_updateResponse *srw_res,
                            int *http_code)
 {
+    Z_SRW_updateRequest *srw_req = sr->u.update_request;
     yaz_log(YLOG_DEBUG, "Got SRW UpdateRequest");
     yaz_log(YLOG_DEBUG, "num_diag = %d", srw_res->num_diagnostics );
     *http_code = 404;
-    srw_bend_init(assoc, &srw_res->diagnostics, &srw_res->num_diagnostics);
+    srw_bend_init(assoc, &srw_res->diagnostics, &srw_res->num_diagnostics, sr);
     if (assoc->init)
     {
        bend_update_rr rr;
@@ -1232,8 +1476,9 @@ static void srw_bend_update(association *assoc, request *req,
         rr.response_extra_record = 0;
         rr.extra_request_data = 0;
         rr.extra_response_data = 0;
-        rr.errcode = 0;
-        rr.errstring = 0;
+        rr.uri = 0;
+        rr.message = 0;
+        rr.details = 0;
 
         yaz_log(YLOG_DEBUG, "basename = %s", rr.basenames[0] );
         yaz_log(YLOG_DEBUG, "Operation = %s", rr.operation );
@@ -1312,6 +1557,7 @@ static void srw_bend_update(association *assoc, request *req,
        }
        else if ( !strcmp( rr.operation, "insert" ) )
         {
+            rr.record_id = srw_req->recordId; 
             if ( srw_req->record.recordSchema == 0 ){
                 yaz_add_srw_diagnostic(assoc->encode, &srw_res->diagnostics,
                                        &srw_res->num_diagnostics,
@@ -1358,11 +1604,14 @@ static void srw_bend_update(association *assoc, request *req,
                 return;
             }
         }
-        if (rr.errcode)
-            yaz_add_srw_diagnostic(assoc->encode,
-                                   &srw_res->diagnostics,
-                                   &srw_res->num_diagnostics,
-                                   rr.errcode, rr.errstring);
+
+        if (rr.uri)
+            yaz_add_srw_diagnostic_uri(assoc->encode,
+                                       &srw_res->diagnostics,
+                                       &srw_res->num_diagnostics,
+                                       rr.uri, 
+                                       rr.message,
+                                       rr.details);
        srw_res->recordId = rr.record_id;
        srw_res->operationStatus = rr.operation_status;
        srw_res->recordVersion = rr.record_version;
@@ -1431,10 +1680,12 @@ static void process_http_request(association *assoc, request *req)
         p = z_get_HTTP_Response(o, 404);
         r = 1;
     }
-    if (r == 2 && assoc->docpath && hreq->path[0] == '/' 
+    if (r == 2 && assoc->server && assoc->server->docpath
+        && hreq->path[0] == '/' 
         && 
         /* check if path is a proper prefix of documentroot */
-        strncmp(hreq->path+1, assoc->docpath, strlen(assoc->docpath))
+        strncmp(hreq->path+1, assoc->server->docpath,
+                strlen(assoc->server->docpath))
         == 0)
     {   
         if (!check_path(hreq->path))
@@ -1462,6 +1713,7 @@ static void process_http_request(association *assoc, request *req)
                 yaz_mime_types_add(types, "html", "text/html");
                 yaz_mime_types_add(types, "htm", "text/html");
                 yaz_mime_types_add(types, "txt", "text/plain");
+                yaz_mime_types_add(types, "js", "application/x-javascript");
                 
                 yaz_mime_types_add(types, "gif", "image/gif");
                 yaz_mime_types_add(types, "png", "image/png");
@@ -1515,7 +1767,7 @@ static void process_http_request(association *assoc, request *req)
             }
             else
             {
-                srw_bend_search(assoc, req, sr->u.request, res->u.response, 
+                srw_bend_search(assoc, req, sr, res->u.response, 
                                 &http_code);
             }
             if (http_code == 200)
@@ -1530,7 +1782,7 @@ static void process_http_request(association *assoc, request *req)
                 res->u.explain_response->diagnostics = diagnostic;
                 res->u.explain_response->num_diagnostics = num_diagnostic;
             }
-            srw_bend_explain(assoc, req, sr->u.explain_request,
+            srw_bend_explain(assoc, req, sr,
                              res->u.explain_response, &http_code);
             if (http_code == 200)
                 soap_package->u.generic->p = res;
@@ -1544,7 +1796,7 @@ static void process_http_request(association *assoc, request *req)
                 res->u.scan_response->diagnostics = diagnostic;
                 res->u.scan_response->num_diagnostics = num_diagnostic;
             }
-            srw_bend_scan(assoc, req, sr->u.scan_request,
+            srw_bend_scan(assoc, req, sr,
                           res->u.scan_response, &http_code);
             if (http_code == 200)
                 soap_package->u.generic->p = res;
@@ -1559,7 +1811,7 @@ static void process_http_request(association *assoc, request *req)
                 res->u.update_response->num_diagnostics = num_diagnostic;
             }
             yaz_log(YLOG_DEBUG, "num_diag = %d", res->u.update_response->num_diagnostics );
-            srw_bend_update(assoc, req, sr->u.update_request,
+            srw_bend_update(assoc, req, sr,
                             res->u.update_response, &http_code);
             if (http_code == 200)
                 soap_package->u.generic->p = res;
@@ -1575,7 +1827,7 @@ static void process_http_request(association *assoc, request *req)
         if (http_code == 200 || http_code == 500)
         {
             static Z_SOAP_Handler soap_handlers[4] = {
-#if HAVE_XML2
+#if YAZ_HAVE_XML2
                 {"http://www.loc.gov/zing/srw/", 0,
                  (Z_SOAP_fun) yaz_srw_codec},
                 {"http://www.loc.gov/zing/srw/v1.0/", 0,
@@ -1590,8 +1842,12 @@ static void process_http_request(association *assoc, request *req)
             p = z_get_HTTP_Response(o, 200);
             hres = p->u.HTTP_Response;
 
-            if (!stylesheet)
-                stylesheet = assoc->stylesheet;
+            if (!stylesheet && assoc->server)
+                stylesheet = assoc->server->stylesheet;
+
+            /* empty stylesheet means NO stylesheet */
+            if (stylesheet && *stylesheet == '\0')
+                stylesheet = 0;
 
             ret = z_soap_codec_enc_xsl(assoc->encode, &soap_package,
                                        &hres->content_buf, &hres->content_len,
@@ -2029,7 +2285,8 @@ static Z_APDU *process_initRequest(association *assoc, request *reqb)
         strcat(options, " negotiation");
     }
         
-    ODR_MASK_SET(resp->options, Z_Options_triggerResourceCtrl);
+    if (ODR_MASK_GET(req->options, Z_Options_triggerResourceCtrl))
+        ODR_MASK_SET(resp->options, Z_Options_triggerResourceCtrl);
 
     if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_1))
     {
@@ -2048,13 +2305,12 @@ static Z_APDU *process_initRequest(association *assoc, request *reqb)
     }
 
     yaz_log(log_requestdetail, "Negotiated to v%d: %s", assoc->version, options);
-    assoc->maximumRecordSize = *req->maximumRecordSize;
 
-    if (cb && assoc->maximumRecordSize > cb->maxrecordsize)
-        assoc->maximumRecordSize = cb->maxrecordsize;
-    assoc->preferredMessageSize = *req->preferredMessageSize;
-    if (assoc->preferredMessageSize > assoc->maximumRecordSize)
-        assoc->preferredMessageSize = assoc->maximumRecordSize;
+    if (*req->maximumRecordSize < assoc->maximumRecordSize)
+        assoc->maximumRecordSize = *req->maximumRecordSize;
+
+    if (*req->preferredMessageSize < assoc->preferredMessageSize)
+        assoc->preferredMessageSize = *req->preferredMessageSize;
 
     resp->preferredMessageSize = &assoc->preferredMessageSize;
     resp->maximumRecordSize = &assoc->maximumRecordSize;
@@ -2067,7 +2323,7 @@ static Z_APDU *process_initRequest(association *assoc, request *reqb)
                 assoc->init->implementation_name,
                 odr_prepend(assoc->encode, "GFS", resp->implementationName));
 
-    version = odr_strdup(assoc->encode, "$Revision: 1.70 $");
+    version = odr_strdup(assoc->encode, "$Revision: 1.98 $");
     if (strlen(version) > 10)   /* check for unexpanded CVS strings */
         version[strlen(version)-2] = '\0';
     resp->implementationVersion = odr_prepend(assoc->encode,
@@ -2231,7 +2487,8 @@ static Z_Records *pack_records(association *a, char *setname, int start,
         freq.print = a->print;
         freq.referenceId = referenceId;
         freq.schema = 0;
-        (*a->init->bend_fetch)(a->backend, &freq);
+
+        retrieve_fetch(a, &freq);
 
         *next = freq.last_in_set ? 0 : recno + 1;
 
@@ -2376,14 +2633,14 @@ static Z_APDU *process_searchRequest(association *assoc, request *reqb,
         bsrr->errstring = NULL;
         bsrr->search_info = NULL;
 
-        if (assoc->cql_transform &&
-            req->query->which == Z_Query_type_104 &&
-            req->query->u.type_104->which == Z_External_CQL)
+        if (assoc->server && assoc->server->cql_transform 
+            && req->query->which == Z_Query_type_104
+            && req->query->u.type_104->which == Z_External_CQL)
         {
             /* have a CQL query and a CQL to PQF transform .. */
             int srw_errcode = 
                 cql2pqf(bsrr->stream, req->query->u.type_104->u.cql,
-                        assoc->cql_transform, bsrr->query);
+                        assoc->server->cql_transform, bsrr->query);
             if (srw_errcode)
                 bsrr->errcode = yaz_diag_srw_to_bib1(srw_errcode);
         }
@@ -2482,9 +2739,39 @@ static Z_APDU *response_searchRequest(association *assoc, request *reqb,
                 form = VAL_NONE;
             else
                 form = prefformat->value;
-            resp->records = pack_records(assoc, req->resultSetName, 1,
-                                         toget, compp, next, presst, form, req->referenceId,
-                                         req->preferredRecordSyntax, NULL);
+
+            /* Call bend_present if defined */
+            if (assoc->init->bend_present)
+            {
+                bend_present_rr *bprr = (bend_present_rr *)
+                    nmem_malloc (reqb->request_mem, sizeof(*bprr));
+                bprr->setname = req->resultSetName;
+                bprr->start = 1;
+                bprr->number = *toget;
+                bprr->format = form;
+                bprr->comp = compp;
+                bprr->referenceId = req->referenceId;
+                bprr->stream = assoc->encode;
+                bprr->print = assoc->print;
+                bprr->request = reqb;
+                bprr->association = assoc;
+                bprr->errcode = 0;
+                bprr->errstring = NULL;
+                (*assoc->init->bend_present)(assoc->backend, bprr);
+
+                if (!bprr->request)
+                    return 0;
+                if (bprr->errcode)
+                {
+                    resp->records = diagrec(assoc, bprr->errcode, bprr->errstring);
+                    *resp->presentStatus = Z_PresentStatus_failure;
+                }
+            }
+
+            if (!resp->records)
+                resp->records = pack_records(assoc, req->resultSetName, 1,
+                                             toget, compp, next, presst, form, req->referenceId,
+                                             req->preferredRecordSyntax, NULL);
             if (!resp->records)
                 return 0;
             resp->numberOfRecordsReturned = toget;
@@ -2509,7 +2796,16 @@ static Z_APDU *response_searchRequest(association *assoc, request *reqb,
 
     if (log_request)
     {
+        int i;
         WRBUF wr = wrbuf_alloc();
+
+        for (i = 0 ; i < req->num_databaseNames; i++){
+            if (i)
+                wrbuf_printf(wr, "+");
+            wrbuf_printf(wr, req->databaseNames[i]);
+        }
+        wrbuf_printf(wr, " ");
+        
         if (bsrt->errcode)
             wrbuf_printf(wr, "ERROR %d", bsrt->errcode);
         else
@@ -2614,11 +2910,11 @@ static Z_APDU *process_presentRequest(association *assoc, request *reqb,
         wrbuf_printf(wr, "Present ");
 
         if (*resp->presentStatus == Z_PresentStatus_failure)
-            wrbuf_printf(wr, "ERROR %d", errcode);
+            wrbuf_printf(wr, "ERROR %d ", errcode);
         else if (*resp->presentStatus == Z_PresentStatus_success)
-            wrbuf_printf(wr, "OK -");
+            wrbuf_printf(wr, "OK -  ");
         else
-            wrbuf_printf(wr, "Partial %d", *resp->presentStatus);
+            wrbuf_printf(wr, "Partial %d - ", *resp->presentStatus);
 
         wrbuf_printf(wr, " %s %d+%d ",
                 req->resultSetId, *req->resultSetStartPoint,
@@ -2807,22 +3103,41 @@ static Z_APDU *process_scanRequest(association *assoc, request *reqb, int *fd)
     }
     if (log_request)
     {
+        int i;
         WRBUF wr = wrbuf_alloc();
-        if (bsrr->errcode)
+        wrbuf_printf(wr, "Scan ");
+        for (i = 0 ; i < req->num_databaseNames; i++){
+            if (i)
+                wrbuf_printf(wr, "+");
+            wrbuf_printf(wr, req->databaseNames[i]);
+        }
+        wrbuf_printf(wr, " ");
+        
+        if (bsrr->errcode){
             wr_diag(wr, bsrr->errcode, bsrr->errstring);
-        else if (*res->scanStatus == Z_Scan_success)
-            wrbuf_printf(wr, "OK");
+            wrbuf_printf(wr, " ");
+        }
         else
-            wrbuf_printf(wr, "Partial");
+            wrbuf_printf(wr, "OK "); 
+        /* else if (*res->scanStatus == Z_Scan_success) */
+        /*    wrbuf_printf(wr, "OK "); */
+        /* else */
+        /* wrbuf_printf(wr, "Partial "); */
+
+        if (*res->numberOfEntriesReturned)
+            wrbuf_printf(wr, "%d - ", *res->numberOfEntriesReturned);
+        else
+            wrbuf_printf(wr, "0 - ");
 
-        wrbuf_printf(wr, " %d+%d %d ",
+        wrbuf_printf(wr, "%d+%d+%d ",
                      (req->preferredPositionInResponse ?
                       *req->preferredPositionInResponse : 1),
                      *req->numberOfTermsRequested,
-                     (res->stepSize ? *res->stepSize : 0));
+                     (res->stepSize ? *res->stepSize : 1));
+
         yaz_scan_to_wrbuf(wr, req->termListAndStartPoint, 
                           bsrr->attributeset);
-        yaz_log(log_request, "Scan %s", wrbuf_buf(wr) );
+        yaz_log(log_request, "%s", wrbuf_buf(wr) );
         wrbuf_free(wr, 1);
     }
     return apdu;
@@ -2894,7 +3209,7 @@ static Z_APDU *process_sortRequest(association *assoc, request *reqb,
         for (i = 0; i<req->num_inputResultSetNames; i++)
         {
             if (i)
-                wrbuf_printf(wr, ",");
+                wrbuf_printf(wr, "+");
             wrbuf_printf(wr, req->inputResultSetNames[i]);
         }
         wrbuf_printf(wr, ")->%s ",req->sortedResultSetName);