Change return values for yaz_retrieval_request a bit and improve
[yaz-moved-to-github.git] / src / seshigh.c
index 6c8d071..f6dedb5 100644 (file)
@@ -2,7 +2,7 @@
  * Copyright (C) 1995-2005, Index Data ApS
  * See the file LICENSE for details.
  *
- * $Id: seshigh.c,v 1.72 2006-03-16 12:30:03 adam Exp $
+ * $Id: seshigh.c,v 1.79 2006-05-08 19:48:26 adam Exp $
  */
 /**
  * \file seshigh.c
@@ -184,8 +184,7 @@ 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;
 }
 
@@ -360,10 +359,10 @@ 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:");
@@ -488,7 +487,7 @@ 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)
@@ -502,6 +501,26 @@ static int srw_bend_init(association *assoc, Z_SRW_diagnostic **d, int *num)
         
         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;
@@ -515,6 +534,7 @@ 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);
@@ -528,6 +548,137 @@ 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 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);
+        yaz_log(YLOG_LOG, "yaz_retrieval_request r=%d", r);
+        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)
@@ -591,7 +742,7 @@ 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)
     {
@@ -642,7 +793,7 @@ 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)
@@ -708,16 +859,17 @@ 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;
@@ -734,10 +886,11 @@ 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,
@@ -775,8 +928,8 @@ 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;
             }
             
@@ -976,13 +1129,14 @@ 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;
@@ -992,7 +1146,10 @@ 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);
@@ -1020,14 +1177,15 @@ 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;
@@ -1089,7 +1247,8 @@ 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;
@@ -1097,7 +1256,7 @@ 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,
@@ -1204,14 +1363,15 @@ static void srw_bend_scan(association *assoc, request *req,
 }
 
 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;
@@ -1432,10 +1592,12 @@ 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))
@@ -1463,6 +1625,7 @@ 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");
@@ -1516,7 +1679,7 @@ 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)
@@ -1531,7 +1694,7 @@ 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;
@@ -1545,7 +1708,7 @@ 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;
@@ -1560,7 +1723,7 @@ 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;
@@ -1591,8 +1754,8 @@ 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')
@@ -2072,7 +2235,7 @@ 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: 1.72 $");
+    version = odr_strdup(assoc->encode, "$Revision: 1.79 $");
     if (strlen(version) > 10)   /* check for unexpanded CVS strings */
         version[strlen(version)-2] = '\0';
     resp->implementationVersion = odr_prepend(assoc->encode,
@@ -2236,7 +2399,8 @@ 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;
 
@@ -2381,14 +2545,14 @@ 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);
         }