+static int process_z_request(association *assoc, request *req, char **msg);
+
+static int srw_bend_init(association *assoc)
+{
+ bend_initresult *binitres;
+ statserv_options_block *cb = statserv_getcontrol();
+
+ assoc->init = (bend_initrequest *) xmalloc (sizeof(*assoc->init));
+
+ assoc->init->stream = assoc->encode;
+ assoc->init->print = assoc->print;
+ assoc->init->auth = 0;
+ assoc->init->referenceId = 0;
+ assoc->init->implementation_version = 0;
+ assoc->init->implementation_id = 0;
+ assoc->init->implementation_name = 0;
+ assoc->init->bend_sort = NULL;
+ assoc->init->bend_search = NULL;
+ assoc->init->bend_present = NULL;
+ assoc->init->bend_esrequest = NULL;
+ assoc->init->bend_delete = NULL;
+ assoc->init->bend_scan = NULL;
+ assoc->init->bend_segment = NULL;
+ assoc->init->bend_fetch = NULL;
+ assoc->init->charneg_request = NULL;
+ assoc->init->charneg_response = NULL;
+ assoc->init->decode = assoc->decode;
+
+ assoc->init->peer_name =
+ odr_strdup (assoc->encode, cs_addrstr(assoc->client_link));
+ if (!(binitres = (*cb->bend_init)(assoc->init)))
+ {
+ yaz_log(LOG_WARN, "Bad response from backend.");
+ return 0;
+ }
+ assoc->backend = binitres->handle;
+ return 1;
+}
+
+static void srw_bend_fetch(association *assoc, int pos,
+ Z_SRW_searchRetrieveRequest *srw_req,
+ Z_SRW_record *record)
+{
+ bend_fetch_rr rr;
+ ODR o = assoc->encode;
+
+ rr.setname = "default";
+ rr.number = pos;
+ rr.referenceId = 0;
+ rr.request_format = VAL_TEXT_XML;
+ rr.request_format_raw = yaz_oidval_to_z3950oid(assoc->decode,
+ CLASS_TRANSYN,
+ VAL_TEXT_XML);
+ rr.comp = (Z_RecordComposition *)
+ odr_malloc(assoc->decode, sizeof(*rr.comp));
+ rr.comp->which = Z_RecordComp_complex;
+ rr.comp->u.complex = (Z_CompSpec *)
+ odr_malloc(assoc->decode, sizeof(Z_CompSpec));
+ rr.comp->u.complex->selectAlternativeSyntax = (bool_t *)
+ odr_malloc(assoc->encode, sizeof(bool_t));
+ *rr.comp->u.complex->selectAlternativeSyntax = 0;
+ rr.comp->u.complex->num_dbSpecific = 0;
+ rr.comp->u.complex->dbSpecific = 0;
+ rr.comp->u.complex->num_recordSyntax = 0;
+ rr.comp->u.complex->recordSyntax = 0;
+
+ rr.comp->u.complex->generic = (Z_Specification *)
+ odr_malloc(assoc->decode, sizeof(Z_Specification));
+ rr.comp->u.complex->generic->which = Z_Schema_uri;
+ rr.comp->u.complex->generic->schema.uri = srw_req->recordSchema;
+ rr.comp->u.complex->generic->elementSpec = 0;
+
+ rr.stream = assoc->encode;
+ rr.print = assoc->print;
+
+ rr.basename = 0;
+ 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;
+
+ (*assoc->init->bend_fetch)(assoc->backend, &rr);
+
+ if (rr.len >= 0)
+ {
+ record->recordData_buf = rr.record;
+ record->recordData_len = rr.len;
+ record->recordPosition = odr_intdup(o, pos);
+ record->recordSchema = 0;
+ if (srw_req->recordSchema)
+ record->recordSchema = odr_strdup(o, srw_req->recordSchema);
+ }
+}
+
+static void srw_bend_search(association *assoc, request *req,
+ Z_SRW_searchRetrieveRequest *srw_req,
+ Z_SRW_searchRetrieveResponse *srw_res)
+{
+ char *base = "Default";
+ bend_search_rr rr;
+ Z_External *ext;
+
+ if (!assoc->init)
+ srw_bend_init(assoc);
+
+ rr.setname = "default";
+ rr.replace_set = 1;
+ rr.num_bases = 1;
+ rr.basenames = &srw_req->database;
+ rr.referenceId = 0;
+
+ ext = (Z_External *) odr_malloc(assoc->decode, sizeof(*ext));
+ ext->direct_reference = odr_getoidbystr(assoc->decode,
+ "1.2.840.10003.16.2");
+ ext->indirect_reference = 0;
+ ext->descriptor = 0;
+ ext->which = Z_External_CQL;
+ if (srw_req->query)
+ ext->u.cql = srw_req->query;
+ else
+ ext->u.cql = "noterm";
+
+ rr.query = (Z_Query *) odr_malloc (assoc->decode, sizeof(*rr.query));
+ rr.query->which = Z_Query_type_104;
+ rr.query->u.type_104 = ext;
+
+ rr.stream = assoc->encode;
+ rr.decode = assoc->decode;
+ rr.print = assoc->print;
+ rr.request = req;
+ rr.association = assoc;
+ rr.fd = 0;
+ rr.hits = 0;
+ rr.errcode = 0;
+ rr.errstring = 0;
+ rr.search_info = 0;
+ yaz_log_zquery(rr.query);
+ (assoc->init->bend_search)(assoc->backend, &rr);
+ srw_res->numberOfRecords = odr_intdup(assoc->encode, rr.hits);
+ if (rr.errcode)
+ {
+ srw_res->num_diagnostics = 1;
+ srw_res->diagnostics = (Z_SRW_diagnostic *)
+ odr_malloc(assoc->encode, sizeof(*srw_res->diagnostics));
+ srw_res->diagnostics[0].code =
+ odr_intdup(assoc->encode, rr.errcode);
+ srw_res->diagnostics[0].details = rr.errstring;
+ }
+ else
+ {
+ srw_res->numberOfRecords = odr_intdup(assoc->encode, rr.hits);
+ if (srw_req->maximumRecords && *srw_req->maximumRecords > 0)
+ {
+ int number = *srw_req->maximumRecords;
+ int start = 1;
+ int i;
+ if (srw_req->startRecord)
+ start = *srw_req->startRecord;
+ if (start <= rr.hits)
+ {
+ int j = 0;
+ if (start + number > rr.hits)
+ number = rr.hits - start + 1;
+ srw_res->records = (Z_SRW_record *)
+ odr_malloc(assoc->encode,
+ number * sizeof(*srw_res->records));
+ for (i = 0; i<number; i++)
+ {
+ srw_res->records[j].recordData_buf = 0;
+ srw_bend_fetch(assoc, i+start, srw_req,
+ srw_res->records + j);
+ if (srw_res->records[j].recordData_buf)
+ j++;
+ }
+ srw_res->num_records = j;
+ if (!j)
+ srw_res->records = 0;
+ yaz_log(LOG_LOG, "got %d records", j);
+ }
+ }
+ }
+}
+
+static void process_http_request(association *assoc, request *req)
+{
+ Z_HTTP_Request *hreq = req->gdu_request->u.HTTP_Request;
+ ODR o = assoc->encode;
+ Z_GDU *p = 0;
+ Z_HTTP_Response *hres = 0;
+ int keepalive = 1;
+
+ if (!strcmp(hreq->method, "GET"))
+ {
+#ifdef DOCDIR
+ if (strlen(hreq->path) >= 5 && strlen(hreq->path) < 80 &&
+ !memcmp(hreq->path, "/doc/", 5))
+ {
+ FILE *f;
+ char fpath[120];
+
+ strcpy(fpath, DOCDIR);
+ strcat(fpath, hreq->path+4);
+ f = fopen(fpath, "rb");
+ if (f) {
+ struct stat sbuf;
+ if (fstat(fileno(f), &sbuf) || !S_ISREG(sbuf.st_mode))
+ {
+ fclose(f);
+ f = 0;
+ }
+ }
+ if (f)
+ {
+ long sz;
+ fseek(f, 0L, SEEK_END);
+ sz = ftell(f);
+ if (sz >= 0 && sz < 500000)
+ {
+ const char *ctype = "application/octet-stream";
+ const char *cp;
+
+ p = z_get_HTTP_Response(o, 200);
+ hres = p->u.HTTP_Response;
+ hres->content_buf = (char *) odr_malloc(o, sz + 1);
+ hres->content_len = sz;
+ fseek(f, 0L, SEEK_SET);
+ fread(hres->content_buf, 1, sz, f);
+ if ((cp = strrchr(fpath, '.'))) {
+ cp++;
+ if (!strcmp(cp, "png"))
+ ctype = "image/png";
+ else if (!strcmp(cp, "gif"))
+ ctype = "image/gif";
+ else if (!strcmp(cp, "xml"))
+ ctype = "text/xml";
+ else if (!strcmp(cp, "html"))
+ ctype = "text/html";
+ }
+ z_HTTP_header_add(o, &hres->headers, "Content-Type", ctype);
+ yaz_log(LOG_LOG, "OK send page %s size=%ld", fpath, sz);
+ }
+ fclose(f);
+ }
+ }
+#endif
+ if (!strcmp(hreq->path, "/"))
+ {
+#ifdef DOCDIR
+ struct stat sbuf;
+#endif
+ const char *doclink = "";
+ p = z_get_HTTP_Response(o, 200);
+ hres = p->u.HTTP_Response;
+ hres->content_buf = (char *) odr_malloc(o, 400);
+#ifdef DOCDIR
+ if (stat(DOCDIR "/yaz.html", &sbuf) == 0 && S_ISREG(sbuf.st_mode))
+ doclink = "<P><A HREF=\"/doc/yaz.html\">Documentation</A></P>";
+#endif
+ sprintf (hres->content_buf,
+ "<!DOCTYPE HTML PUBLIC \"-//IETF//DTD HTML 2.0//EN\">\n"
+ "<HTML>\n"
+ " <HEAD>\n"
+ " <TITLE>YAZ " YAZ_VERSION "</TITLE>\n"
+ " </HEAD>\n"
+ " <BODY>\n"
+ " <P><A HREF=\"http://www.indexdata.dk/yaz/\">YAZ</A> "
+ YAZ_VERSION "</P>\n"
+ "%s"
+ " </BODY>\n"
+ "</HTML>\n", doclink);
+ hres->content_len = strlen(hres->content_buf);
+ z_HTTP_header_add(o, &hres->headers, "Content-Type", "text/html");
+ }
+ if (!p)
+ {
+ p = z_get_HTTP_Response(o, 404);
+ }
+ }
+ else if (!strcmp(hreq->method, "POST"))
+ {
+#if HAVE_XML2
+ const char *content_type = z_HTTP_header_lookup(hreq->headers,
+ "Content-Type");
+ const char *soap_action = z_HTTP_header_lookup(hreq->headers,
+ "SOAPAction");
+ if (content_type && soap_action &&
+ !yaz_strcmp_del("text/xml", content_type, "; "))
+ {
+ Z_SOAP *soap_package = 0;
+ int ret;
+ int http_code = 500;
+
+ static Z_SOAP_Handler soap_handlers[2] = {
+ {"http://www.loc.gov/zing/srw/v1.0/", 0,
+ (Z_SOAP_fun) yaz_srw_codec},
+ {0, 0, 0}
+ };
+
+ ret = z_soap_codec(assoc->decode, &soap_package,
+ &hreq->content_buf, &hreq->content_len,
+ soap_handlers);
+
+ if (!ret && soap_package->which == Z_SOAP_generic &&
+ soap_package->u.generic->no == 0)
+ {
+ /* SRW package */
+ Z_SRW_searchRetrieve *sr = soap_package->u.generic->p;
+
+ if (sr->which == Z_SRW_searchRetrieve_request)
+ {
+ Z_SRW_searchRetrieve *res =
+ yaz_srw_get(assoc->encode,
+ Z_SRW_searchRetrieve_response);
+
+ if (!sr->u.request->database)
+ {
+ const char *p0 = hreq->path, *p1;
+ if (*p0 == '/')
+ p0++;
+ p1 = strchr(p0, '?');
+ if (!p1)
+ p1 = p0 + strlen(p0);
+ if (p1 != p0)
+ {
+ sr->u.request->database =
+ odr_malloc(assoc->decode, p1 - p0 + 1);
+ memcpy (sr->u.request->database, p0, p1 - p0);
+ sr->u.request->database[p1 - p0] = '\0';
+ }
+ else
+ sr->u.request->database = "Default";
+ }
+ srw_bend_search(assoc, req, sr->u.request,
+ res->u.response);
+
+ soap_package->u.generic->p = res;
+ http_code = 200;
+ }
+ }
+
+ p = z_get_HTTP_Response(o, 200);
+ hres = p->u.HTTP_Response;
+ ret = z_soap_codec(assoc->encode, &soap_package,
+ &hres->content_buf, &hres->content_len,
+ soap_handlers);
+ hres->code = http_code;
+ z_HTTP_header_add(o, &hres->headers, "Content-Type", "text/xml");
+ }
+#endif
+ if (!p) /* still no response ? */
+ p = z_get_HTTP_Response(o, 500);
+ }
+ else
+ {
+ p = z_get_HTTP_Response(o, 405);
+ hres = p->u.HTTP_Response;
+
+ z_HTTP_header_add(o, &hres->headers, "Allow", "GET, POST");
+ }
+ hres = p->u.HTTP_Response;
+ if (!strcmp(hreq->version, "1.0"))
+ {
+ const char *v = z_HTTP_header_lookup(hreq->headers, "Connection");
+ if (v && !strcmp(v, "Keep-Alive"))
+ keepalive = 1;
+ else
+ keepalive = 0;
+ hres->version = "1.0";
+ }
+ else
+ {
+ const char *v = z_HTTP_header_lookup(hreq->headers, "Connection");
+ if (v && !strcmp(v, "close"))
+ keepalive = 0;
+ else
+ keepalive = 1;
+ hres->version = "1.1";
+ }
+ if (!keepalive)
+ {
+ z_HTTP_header_add(o, &hres->headers, "Connection", "close");
+ assoc->state = ASSOC_DEAD;
+ }
+ else
+ {
+ int t;
+ const char *alive = z_HTTP_header_lookup(hreq->headers, "Keep-Alive");
+
+ if (alive && isdigit(*alive))
+ t = atoi(alive);
+ else
+ t = 30;
+ if (t < 0 || t > 3600)
+ t = 3600;
+ iochan_settimeout(assoc->client_chan,t);
+ z_HTTP_header_add(o, &hres->headers, "Connection", "Keep-Alive");
+ }
+ process_gdu_response(assoc, req, p);
+}
+
+static void process_gdu_request(association *assoc, request *req)
+{
+ if (req->gdu_request->which == Z_GDU_Z3950)
+ {
+ char *msg = 0;
+ req->apdu_request = req->gdu_request->u.z3950;
+ if (process_z_request(assoc, req, &msg) < 0)
+ do_close_req(assoc, Z_Close_systemProblem, msg, req);
+ }
+ else if (req->gdu_request->which == Z_GDU_HTTP_Request)
+ process_http_request(assoc, req);
+ else
+ {
+ do_close_req(assoc, Z_Close_systemProblem, "bad protocol packet", req);
+ }
+}
+