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[yaz-moved-to-github.git] / src / seshigh.c
index 8ac8a69..d1205ad 100644 (file)
@@ -1,8 +1,6 @@
-/*
- * Copyright (C) 1995-2007, Index Data ApS
+/* This file is part of the YAZ toolkit.
+ * Copyright (C) 1995-2008 Index Data
  * See the file LICENSE for details.
- *
- * $Id: seshigh.c,v 1.114 2007-04-12 20:47:28 adam Exp $
  */
 /**
  * \file seshigh.c
@@ -76,6 +74,7 @@
 
 #include <yaz/srw.h>
 #include <yaz/backend.h>
+#include <yaz/yaz-ccl.h>
 
 static void process_gdu_request(association *assoc, request *req);
 static int process_z_request(association *assoc, request *req, char **msg);
@@ -496,6 +495,8 @@ static void assoc_init_reset(association *assoc)
     assoc->init->implementation_version = 0;
     assoc->init->implementation_id = 0;
     assoc->init->implementation_name = 0;
+    assoc->init->query_charset = 0;
+    assoc->init->records_in_same_charset = 0;
     assoc->init->bend_sort = NULL;
     assoc->init->bend_search = NULL;
     assoc->init->bend_present = NULL;
@@ -532,14 +533,15 @@ static int srw_bend_init(association *assoc, Z_SRW_diagnostic **d, int *num, Z_S
         
         if (sr->username)
         {
-            Z_IdAuthentication *auth = odr_malloc(assoc->decode, sizeof(*auth));
+            Z_IdAuthentication *auth = (Z_IdAuthentication *)
+                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);
+            auth->u.open = (char *) odr_malloc(assoc->decode, len);
             strcpy(auth->u.open, sr->username);
             if (sr->password && *sr->password)
             {
@@ -581,7 +583,7 @@ 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;
+    Odr_oid *match_syntax = 0;
 
     if (assoc->server)
     {
@@ -652,7 +654,7 @@ static int retrieve_fetch(association *assoc, bend_fetch_rr *rr)
         else
         {
             rr->len = wrbuf_len(output_record);
-            rr->record = odr_malloc(rr->stream, rr->len);
+            rr->record = (char *) odr_malloc(rr->stream, rr->len);
             memcpy(rr->record, wrbuf_buf(output_record), rr->len);
         }
         wrbuf_destroy(output_record);
@@ -679,10 +681,8 @@ static int srw_bend_fetch(association *assoc, int pos,
     rr.setname = "default";
     rr.number = pos;
     rr.referenceId = 0;
-    rr.request_format = yaz_string_to_oid_odr(yaz_oid_std(),
-                                              CLASS_RECSYN,
-                                              OID_STR_XML,
-                                              assoc->decode);
+    rr.request_format = odr_oiddup(assoc->decode, yaz_oid_recsyn_xml);
+
     rr.comp = (Z_RecordComposition *)
             odr_malloc(assoc->decode, sizeof(*rr.comp));
     rr.comp->which = Z_RecordComp_complex;
@@ -735,29 +735,7 @@ static int srw_bend_fetch(association *assoc, int pos,
     if (rr.errcode && rr.surrogate_flag)
     {
         int code = yaz_diag_bib1_to_srw(rr.errcode);
-        const char *message = yaz_diag_srw_str(code);
-        int len = 200;
-        if (message)
-            len += strlen(message);
-        if (rr.errstring)
-            len += strlen(rr.errstring);
-
-        record->recordData_buf = odr_malloc(o, len);
-        
-        sprintf(record->recordData_buf, "<diagnostic "
-                "xmlns=\"http://www.loc.gov/zing/srw/diagnostic/\">\n"
-                " <uri>info:srw/diagnostic/1/%d</uri>\n", code);
-        if (rr.errstring)
-            sprintf(record->recordData_buf + strlen(record->recordData_buf),
-                    " <details>%s</details>\n", rr.errstring);
-        if (message)
-            sprintf(record->recordData_buf + strlen(record->recordData_buf),
-                    " <message>%s</message>\n", message);
-        sprintf(record->recordData_buf + strlen(record->recordData_buf),
-                "</diagnostic>\n");
-        record->recordData_len = strlen(record->recordData_buf);
-        record->recordPosition = odr_intdup(o, pos);
-        record->recordSchema = "info:srw/schema/1/diagnostics-v1.1";
+        yaz_mk_sru_surrogate(o, record, pos, code, rr.errstring);
         return 0;
     }
     else if (rr.len >= 0)
@@ -765,10 +743,8 @@ static int srw_bend_fetch(association *assoc, int pos,
         record->recordData_buf = rr.record;
         record->recordData_len = rr.len;
         record->recordPosition = odr_intdup(o, pos);
-        if (rr.schema)
-            record->recordSchema = odr_strdup(o, rr.schema);
-        else
-            record->recordSchema = 0;
+        record->recordSchema = odr_strdup_null(
+            o, rr.schema ? rr.schema : srw_req->recordSchema);
     }
     if (rr.errcode)
     {
@@ -791,8 +767,7 @@ static int cql2pqf(ODR odr, const char *cql, cql_transform_t ct,
     r = cql_parser_string(cp, cql);
     if (r)
     {
-        /* CQL syntax error */
-        srw_errcode = 10; 
+        srw_errcode = YAZ_SRW_QUERY_SYNTAX_ERROR;
     }
     if (!r)
     {
@@ -801,7 +776,7 @@ static int cql2pqf(ODR odr, const char *cql, cql_transform_t ct,
                               cql_parser_result(cp),
                               rpn_buf, sizeof(rpn_buf)-1);
         if (r)
-            srw_errcode  = cql_transform_error(ct, &add);
+            srw_errcode = cql_transform_error(ct, &add);
     }
     if (!r)
     {
@@ -816,7 +791,7 @@ static int cql2pqf(ODR odr, const char *cql, cql_transform_t ct,
             int code = yaz_pqf_error(pp, &pqf_msg, &off);
             yaz_log(YLOG_WARN, "PQF Parser Error %s (code %d)",
                     pqf_msg, code);
-            srw_errcode = 10;
+            srw_errcode = YAZ_SRW_QUERY_SYNTAX_ERROR;
         }
         else
         {
@@ -838,19 +813,38 @@ static int cql2pqf_scan(ODR odr, const char *cql, cql_transform_t ct,
     if (srw_error)
         return srw_error;
     if (query.which != Z_Query_type_1 && query.which != Z_Query_type_101)
-        return 10; /* bad query type */
+        return YAZ_SRW_QUERY_SYNTAX_ERROR; /* bad query type */
     rpn = query.u.type_1;
     if (!rpn->RPNStructure) 
-        return 10; /* must be structure */
+        return YAZ_SRW_QUERY_SYNTAX_ERROR; /* must be structure */
     if (rpn->RPNStructure->which != Z_RPNStructure_simple)
-        return 10; /* must be simple */
+        return YAZ_SRW_QUERY_SYNTAX_ERROR; /* must be simple */
     if (rpn->RPNStructure->u.simple->which != Z_Operand_APT)
-        return 10; /* must be attributes plus term node .. */
+        return YAZ_SRW_QUERY_SYNTAX_ERROR; /* must be be attributes + term */
     memcpy(result, rpn->RPNStructure->u.simple->u.attributesPlusTerm,
            sizeof(*result));
     return 0;
 }
                    
+
+static int ccl2pqf(ODR odr, const Odr_oct *ccl, CCL_bibset bibset,
+                   bend_search_rr *bsrr) {
+    char *ccl0;
+    struct ccl_rpn_node *node;
+    int errcode, pos;
+
+    ccl0 = odr_strdupn(odr, (char*) ccl->buf, ccl->len);
+    if ((node = ccl_find_str(bibset, ccl0, &errcode, &pos)) == 0) {
+        bsrr->errstring = (char*) ccl_err_msg(errcode);
+        return YAZ_SRW_QUERY_SYNTAX_ERROR;    /* Query syntax error */
+    }
+
+    bsrr->query->which = Z_Query_type_1;
+    bsrr->query->u.type_1 = ccl_rpn_query(odr, node);
+    return 0;
+}
+
+
 static void srw_bend_search(association *assoc, request *req,
                             Z_SRW_PDU *sr,
                             Z_SRW_searchRetrieveResponse *srw_res,
@@ -989,12 +983,14 @@ static void srw_bend_search(association *assoc, request *req,
                         odr_intdup(assoc->encode, *rr.srw_setnameIdleTime );
                }
                 
-                if ((rr.hits > 0 && start > rr.hits) || start < 1)
+                if (start > rr.hits || start < 1)
                 {
-                    yaz_add_srw_diagnostic(
-                        assoc->encode, 
-                        &srw_res->diagnostics, &srw_res->num_diagnostics,
-                        YAZ_SRW_FIRST_RECORD_POSITION_OUT_OF_RANGE, 0);
+                    /* if hits<=0 and start=1 we don't return a diagnostic */
+                    if (start != 1)
+                        yaz_add_srw_diagnostic(
+                            assoc->encode, 
+                            &srw_res->diagnostics, &srw_res->num_diagnostics,
+                            YAZ_SRW_FIRST_RECORD_POSITION_OUT_OF_RANGE, 0);
                 }
                 else if (number > 0)
                 {
@@ -1151,7 +1147,7 @@ static void srw_bend_search(association *assoc, request *req,
 static char *srw_bend_explain_default(void *handle, bend_explain_rr *rr)
 {
 #if YAZ_HAVE_XML2
-    xmlNodePtr ptr = rr->server_node_ptr;
+    xmlNodePtr ptr = (xmlNode *) rr->server_node_ptr;
     if (!ptr)
         return 0;
     for (ptr = ptr->children; ptr; ptr = ptr->next)
@@ -1263,12 +1259,14 @@ static void srw_bend_scan(association *assoc, request *req,
         bsrr->print = assoc->print;
         bsrr->step_size = odr_intdup(assoc->decode, 0);
         bsrr->entries = 0;
+        bsrr->setname = 0;
 
         if (bsrr->num_entries > 0) 
         {
             int i;
-            bsrr->entries = odr_malloc(assoc->decode, sizeof(*bsrr->entries) *
-                                       bsrr->num_entries);
+            bsrr->entries = (struct scan_entry *) 
+                odr_malloc(assoc->decode, sizeof(*bsrr->entries) *
+                           bsrr->num_entries);
             for (i = 0; i<bsrr->num_entries; i++)
             {
                 bsrr->entries[i].term = 0;
@@ -1300,7 +1298,8 @@ static void srw_bend_scan(association *assoc, request *req,
             int srw_error;
             bsrr->scanClause = 0;
             bsrr->attributeset = 0;
-            bsrr->term = odr_malloc(assoc->decode, sizeof(*bsrr->term));
+            bsrr->term = (Z_AttributesPlusTerm *)
+                odr_malloc(assoc->decode, sizeof(*bsrr->term));
             srw_error = cql2pqf_scan(assoc->encode,
                                      srw_req->scanClause.cql,
                                      assoc->server->cql_transform,
@@ -1671,7 +1670,7 @@ static char *read_file(const char *fname, ODR o, int *sz)
     fseek(inf, 0L, SEEK_END);
     *sz = ftell(inf);
     rewind(inf);
-    buf = odr_malloc(o, *sz);
+    buf = (char *) odr_malloc(o, *sz);
     fread(buf, 1, *sz, inf);
     fclose(inf);
     return buf;     
@@ -1775,8 +1774,8 @@ static void process_http_request(association *assoc, request *req)
         if (sr->which == Z_SRW_searchRetrieve_request)
         {
             Z_SRW_PDU *res =
-                yaz_srw_get(assoc->encode, Z_SRW_searchRetrieve_response);
-
+                yaz_srw_get_pdu(assoc->encode, Z_SRW_searchRetrieve_response,
+                                sr->srw_version);
             stylesheet = sr->u.request->stylesheet;
             if (num_diagnostic)
             {
@@ -1793,7 +1792,8 @@ static void process_http_request(association *assoc, request *req)
         }
         else if (sr->which == Z_SRW_explain_request)
         {
-            Z_SRW_PDU *res = yaz_srw_get(o, Z_SRW_explain_response);
+            Z_SRW_PDU *res = yaz_srw_get_pdu(o, Z_SRW_explain_response,
+                                             sr->srw_version);
             stylesheet = sr->u.explain_request->stylesheet;
             if (num_diagnostic)
             {   
@@ -1807,7 +1807,8 @@ static void process_http_request(association *assoc, request *req)
         }
         else if (sr->which == Z_SRW_scan_request)
         {
-            Z_SRW_PDU *res = yaz_srw_get(o, Z_SRW_scan_response);
+            Z_SRW_PDU *res = yaz_srw_get_pdu(o, Z_SRW_scan_response,
+                                             sr->srw_version);
             stylesheet = sr->u.scan_request->stylesheet;
             if (num_diagnostic)
             {   
@@ -1821,7 +1822,8 @@ static void process_http_request(association *assoc, request *req)
         }
         else if (sr->which == Z_SRW_update_request)
         {
-            Z_SRW_PDU *res = yaz_srw_get(o, Z_SRW_update_response);
+            Z_SRW_PDU *res = yaz_srw_get_pdu(o, Z_SRW_update_response,
+                                             sr->srw_version);
             yaz_log(YLOG_DEBUG, "handling SRW UpdateRequest");
             if (num_diagnostic)
             {   
@@ -1852,7 +1854,7 @@ static void process_http_request(association *assoc, request *req)
 #endif
                 {0, 0, 0}
             };
-            char ctype[60];
+            char ctype[80];
             int ret;
             p = z_get_HTTP_Response(o, 200);
             hres = p->u.HTTP_Response;
@@ -1870,7 +1872,7 @@ static void process_http_request(association *assoc, request *req)
             hres->code = http_code;
 
             strcpy(ctype, "text/xml");
-            if (charset)
+            if (charset && strlen(charset) < sizeof(ctype)-30)
             {
                 strcat(ctype, "; charset=");
                 strcat(ctype, charset);
@@ -2148,9 +2150,7 @@ static int process_z_response(association *assoc, request *req, Z_APDU *res)
 
 static char *get_vhost(Z_OtherInformation *otherInfo)
 {
-    const int *oid = yaz_string_to_oid(yaz_oid_std(),
-                                       CLASS_USERINFO, OID_STR_PROXY);
-    return yaz_oi_get_string_oid(&otherInfo, oid, 1, 0);
+    return yaz_oi_get_string_oid(&otherInfo, yaz_oid_userinfo_proxy, 1, 0);
 }
 
 /*
@@ -2221,7 +2221,8 @@ static Z_APDU *process_initRequest(association *assoc, request *reqb)
     else
     {
         /* no backend. return error */
-        binitres = odr_malloc(assoc->encode, sizeof(*binitres));
+        binitres = (bend_initresult *)
+            odr_malloc(assoc->encode, sizeof(*binitres));
         binitres->errstring = 0;
         binitres->errcode = YAZ_BIB1_PERMANENT_SYSTEM_ERROR;
         iochan_settimeout(assoc->client_chan, 10);
@@ -2286,26 +2287,34 @@ static Z_APDU *process_initRequest(association *assoc, request *reqb)
         ODR_MASK_SET(resp->options, Z_Options_sort);
         strcat(options, " sort");
     }
-
-    if (ODR_MASK_GET(req->options, Z_Options_negotiationModel)
-        && assoc->init->charneg_response)
+    
+    if (ODR_MASK_GET(req->options, Z_Options_negotiationModel))
     {
-        Z_OtherInformation **p;
         Z_OtherInformationUnit *p0;
-        
-        yaz_oi_APDU(apdu, &p);
-        
-        if ((p0=yaz_oi_update(p, assoc->encode, NULL, 0, 0))) {
-            ODR_MASK_SET(resp->options, Z_Options_negotiationModel);
-            
+
+        if (!assoc->init->charneg_response)
+        {
+            if (assoc->init->query_charset)
+            {
+                assoc->init->charneg_response = yaz_set_response_charneg(
+                    assoc->encode, assoc->init->query_charset, 0, 
+                    assoc->init->records_in_same_charset);
+            }
+            else
+            {
+                yaz_log(YLOG_WARN, "default query_charset not defined by backend");
+            }
+        }
+        if (assoc->init->charneg_response
+            && (p0=yaz_oi_update(&resp->otherInfo, assoc->encode, NULL, 0, 0)))
+        {
             p0->which = Z_OtherInfo_externallyDefinedInfo;
             p0->information.externallyDefinedInfo =
                 assoc->init->charneg_response;
+            ODR_MASK_SET(resp->options, Z_Options_negotiationModel);
+            strcat(options, " negotiation");
         }
-        ODR_MASK_SET(resp->options, Z_Options_negotiationModel);
-        strcat(options, " negotiation");
     }
-        
     if (ODR_MASK_GET(req->options, Z_Options_triggerResourceCtrl))
         ODR_MASK_SET(resp->options, Z_Options_triggerResourceCtrl);
 
@@ -2344,7 +2353,7 @@ 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: 1.114 $");
+    version = odr_strdup(assoc->encode, "$Revision: 1.128 $");
     if (strlen(version) > 10)   /* check for unexpanded CVS strings */
         version[strlen(version)-2] = '\0';
     resp->implementationVersion = odr_prepend(assoc->encode,
@@ -2458,7 +2467,7 @@ static Z_Records *pack_records(association *a, char *setname, int start,
                                int *num, Z_RecordComposition *comp,
                                int *next, int *pres,
                                Z_ReferenceId *referenceId,
-                               int *oid, int *errcode)
+                               Odr_oid *oid, int *errcode)
 {
     int recno, total_length = 0, toget = *num, dumped_records = 0;
     Z_Records *records =
@@ -2511,11 +2520,9 @@ static Z_Records *pack_records(association *a, char *setname, int start,
 
         *next = freq.last_in_set ? 0 : recno + 1;
 
-        /* backend should be able to signal whether error is system-wide
-           or only pertaining to current record */
         if (freq.errcode)
         {
-            if (!freq.surrogate_flag)
+            if (!freq.surrogate_flag) /* non-surrogate diagnostic i.e. global */
             {
                 char s[20];
                 *pres = Z_PresentStatus_failure;
@@ -2587,10 +2594,7 @@ static Z_Records *pack_records(association *a, char *setname, int start,
         if (!(thisrec = (Z_NamePlusRecord *)
               odr_malloc(a->encode, sizeof(*thisrec))))
             return 0;
-        if (freq.basename)
-            thisrec->databaseName = odr_strdup(a->encode, freq.basename);
-        else
-            thisrec->databaseName = 0;
+        thisrec->databaseName = odr_strdup_null(a->encode, freq.basename);
         thisrec->which = Z_NamePlusRecord_databaseRecord;
 
         if (!freq.output_format)
@@ -2662,6 +2666,18 @@ static Z_APDU *process_searchRequest(association *assoc, request *reqb,
             if (srw_errcode)
                 bsrr->errcode = yaz_diag_srw_to_bib1(srw_errcode);
         }
+
+        if (assoc->server && assoc->server->ccl_transform 
+            && req->query->which == Z_Query_type_2) /*CCL*/
+        {
+            /* have a CCL query and a CCL to PQF transform .. */
+            int srw_errcode = 
+                ccl2pqf(bsrr->stream, req->query->u.type_2,
+                        assoc->server->ccl_transform, bsrr);
+            if (srw_errcode)
+                bsrr->errcode = yaz_diag_srw_to_bib1(srw_errcode);
+        }
+
         if (!bsrr->errcode)
             (assoc->init->bend_search)(assoc->backend, bsrr);
         if (!bsrr->request)  /* backend not ready with the search response */
@@ -3000,6 +3016,8 @@ static Z_APDU *process_scanRequest(association *assoc, request *reqb, int *fd)
     bsrr->stream = assoc->encode;
     bsrr->print = assoc->print;
     bsrr->step_size = res->stepSize;
+    bsrr->setname = yaz_oi_get_string_oid(&req->otherInfo, 
+                                          yaz_oid_userinfo_scan_set, 1, 0);
     bsrr->entries = 0;
     /* For YAZ 2.0 and earlier it was the backend handler that
        initialized entries (member display_term did not exist)
@@ -3011,8 +3029,9 @@ static Z_APDU *process_scanRequest(association *assoc, request *reqb, int *fd)
     if (bsrr->num_entries > 0) 
     {
         int i;
-        bsrr->entries = odr_malloc(assoc->decode, sizeof(*bsrr->entries) *
-                                   bsrr->num_entries);
+        bsrr->entries = (struct scan_entry *)
+            odr_malloc(assoc->decode, sizeof(*bsrr->entries) *
+                       bsrr->num_entries);
         for (i = 0; i<bsrr->num_entries; i++)
         {
             bsrr->entries[i].term = 0;
@@ -3112,35 +3131,32 @@ static Z_APDU *process_scanRequest(association *assoc, request *reqb, int *fd)
         int i;
         WRBUF wr = wrbuf_alloc();
         wrbuf_printf(wr, "Scan ");
-        for (i = 0 ; i < req->num_databaseNames; i++){
+        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){
+        if (bsrr->errcode)
             wr_diag(wr, bsrr->errcode, bsrr->errstring);
-            wrbuf_printf(wr, " ");
-        }
-        else
-            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, "OK"); 
 
-        wrbuf_printf(wr, "%d+%d+%d ",
+        wrbuf_printf(wr, " %d - %d+%d+%d",
+                     res->numberOfEntriesReturned ?
+                     *res->numberOfEntriesReturned : 0,
                      (req->preferredPositionInResponse ?
                       *req->preferredPositionInResponse : 1),
                      *req->numberOfTermsRequested,
                      (res->stepSize ? *res->stepSize : 1));
+        
+        if (bsrr->setname)
+            wrbuf_printf(wr, "+%s", bsrr->setname);
 
+        wrbuf_printf(wr, " ");
         yaz_scan_to_wrbuf(wr, req->termListAndStartPoint, 
                           bsrr->attributeset);
         yaz_log(log_request, "%s", wrbuf_cstr(wr) );
@@ -3499,11 +3515,10 @@ static Z_APDU *process_ESRequest(association *assoc, request *reqb, int *fd)
     /* Do something with the members of bend_extendedservice */
     if (esrequest.taskPackage)
     {
-        const int *oid = yaz_string_to_oid(yaz_oid_std(),
-                                           CLASS_EXTSERV, OID_STR_EXTENDED);
-        resp->taskPackage = z_ext_record_oid(assoc->encode, oid,
-                                             (const char *)  esrequest.taskPackage,
-                                             -1);
+        resp->taskPackage = z_ext_record_oid(
+            assoc->encode, yaz_oid_recsyn_extended,
+            (const char *)  esrequest.taskPackage, -1
+            );
     }
     yaz_log(YLOG_DEBUG,"Send the result apdu");
     return apdu;