external definitions moved to pazpar2.h.
-# $Id: Makefile.am,v 1.5 2007-04-10 08:48:56 adam Exp $
+# $Id: Makefile.am,v 1.6 2007-04-16 09:03:25 adam Exp $
bin_PROGRAMS = pazpar2
pazpar2_SOURCES = config.c config.h eventl.c eventl.h \
http.c http_command.c http_command.h http.h \
- pazpar2.c pazpar2.h reclists.c reclists.h \
+ logic.c pazpar2.c pazpar2.h reclists.c reclists.h \
relevance.c relevance.h termlists.c termlists.h \
util.c util.h zeerex.c zeerex.h database.c database.h \
- settings.h settings.c
+ settings.h settings.c
-/* $Id: http.c,v 1.26 2007-04-15 00:35:57 quinn Exp $
+/* $Id: http.c,v 1.27 2007-04-16 09:03:25 adam Exp $
Copyright (c) 2006-2007, Index Data.
This file is part of Pazpar2.
static struct http_channel *http_create(const char *addr);
static void http_destroy(IOCHAN i);
-extern IOCHAN channel_list;
-extern struct parameters global_parameters;
-
// If this is set, we proxy normal HTTP requests
static struct sockaddr_in *proxy_addr = 0;
static char proxy_url[256] = "";
--- /dev/null
+/* $Id: logic.c,v 1.1 2007-04-16 09:03:25 adam Exp $
+ Copyright (c) 2006-2007, Index Data.
+
+This file is part of Pazpar2.
+
+Pazpar2 is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 2, or (at your option) any later
+version.
+
+Pazpar2 is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with Pazpar2; see the file LICENSE. If not, write to the
+Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
+02111-1307, USA.
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/time.h>
+#include <unistd.h>
+#include <sys/socket.h>
+#include <netdb.h>
+#include <signal.h>
+#include <ctype.h>
+#include <assert.h>
+
+#include <yaz/marcdisp.h>
+#include <yaz/comstack.h>
+#include <yaz/tcpip.h>
+#include <yaz/proto.h>
+#include <yaz/readconf.h>
+#include <yaz/pquery.h>
+#include <yaz/otherinfo.h>
+#include <yaz/yaz-util.h>
+#include <yaz/nmem.h>
+#include <yaz/query-charset.h>
+#include <yaz/querytowrbuf.h>
+#if YAZ_VERSIONL >= 0x020163
+#include <yaz/oid_db.h>
+#endif
+
+#if HAVE_CONFIG_H
+#include "cconfig.h"
+#endif
+
+#define USE_TIMING 0
+#if USE_TIMING
+#include <yaz/timing.h>
+#endif
+
+#include <netinet/in.h>
+
+#include "pazpar2.h"
+#include "eventl.h"
+#include "http.h"
+#include "termlists.h"
+#include "reclists.h"
+#include "relevance.h"
+#include "config.h"
+#include "database.h"
+#include "settings.h"
+
+#define MAX_CHUNK 15
+
+static void client_fatal(struct client *cl);
+static void connection_destroy(struct connection *co);
+static int client_prep_connection(struct client *cl);
+static void ingest_records(struct client *cl, Z_Records *r);
+void session_alert_watch(struct session *s, int what);
+
+IOCHAN channel_list = 0; // Master list of connections we're handling events to
+
+static struct connection *connection_freelist = 0;
+static struct client *client_freelist = 0;
+
+static char *client_states[] = {
+ "Client_Connecting",
+ "Client_Connected",
+ "Client_Idle",
+ "Client_Initializing",
+ "Client_Searching",
+ "Client_Presenting",
+ "Client_Error",
+ "Client_Failed",
+ "Client_Disconnected",
+ "Client_Stopped"
+};
+
+// Note: Some things in this structure will eventually move to configuration
+struct parameters global_parameters =
+{
+ "",
+ "",
+ "",
+ "",
+ 0,
+ 0,
+ 30,
+ "81",
+ "Index Data PazPar2 (MasterKey)",
+ VERSION,
+ 600, // 10 minutes
+ 60,
+ 100,
+ MAX_CHUNK,
+ 0,
+ 0
+};
+
+static int send_apdu(struct client *c, Z_APDU *a)
+{
+ struct connection *co = c->connection;
+ char *buf;
+ int len, r;
+
+ if (!z_APDU(global_parameters.odr_out, &a, 0, 0))
+ {
+ odr_perror(global_parameters.odr_out, "Encoding APDU");
+ abort();
+ }
+ buf = odr_getbuf(global_parameters.odr_out, &len, 0);
+ r = cs_put(co->link, buf, len);
+ if (r < 0)
+ {
+ yaz_log(YLOG_WARN, "cs_put: %s", cs_errmsg(cs_errno(co->link)));
+ return -1;
+ }
+ else if (r == 1)
+ {
+ fprintf(stderr, "cs_put incomplete (ParaZ does not handle that)\n");
+ exit(1);
+ }
+ odr_reset(global_parameters.odr_out); /* release the APDU structure */
+ co->state = Conn_Waiting;
+ return 0;
+}
+
+// Set authentication token in init if one is set for the client
+// TODO: Extend this to handle other schemes than open (should be simple)
+static void init_authentication(struct client *cl, Z_InitRequest *req)
+{
+ struct session_database *sdb = cl->database;
+ char *auth = session_setting_oneval(sdb, PZ_AUTHENTICATION);
+
+ if (auth)
+ {
+ Z_IdAuthentication *idAuth = odr_malloc(global_parameters.odr_out,
+ sizeof(*idAuth));
+ idAuth->which = Z_IdAuthentication_open;
+ idAuth->u.open = auth;
+ req->idAuthentication = idAuth;
+ }
+}
+
+static void send_init(IOCHAN i)
+{
+
+ struct connection *co = iochan_getdata(i);
+ struct client *cl = co->client;
+ Z_APDU *a = zget_APDU(global_parameters.odr_out, Z_APDU_initRequest);
+
+ a->u.initRequest->implementationId = global_parameters.implementationId;
+ a->u.initRequest->implementationName = global_parameters.implementationName;
+ a->u.initRequest->implementationVersion =
+ global_parameters.implementationVersion;
+ ODR_MASK_SET(a->u.initRequest->options, Z_Options_search);
+ ODR_MASK_SET(a->u.initRequest->options, Z_Options_present);
+ ODR_MASK_SET(a->u.initRequest->options, Z_Options_namedResultSets);
+
+ ODR_MASK_SET(a->u.initRequest->protocolVersion, Z_ProtocolVersion_1);
+ ODR_MASK_SET(a->u.initRequest->protocolVersion, Z_ProtocolVersion_2);
+ ODR_MASK_SET(a->u.initRequest->protocolVersion, Z_ProtocolVersion_3);
+
+ init_authentication(cl, a->u.initRequest);
+
+ /* add virtual host if tunneling through Z39.50 proxy */
+
+ if (0 < strlen(global_parameters.zproxy_override)
+ && 0 < strlen(cl->database->database->url))
+ {
+#if YAZ_VERSIONL >= 0x020163
+ const int *oid_proxy = yaz_string_to_oid(yaz_oid_std(),
+ CLASS_USERINFO, OID_STR_PROXY);
+ yaz_oi_set_string_oid(&a->u.initRequest->otherInfo,
+ global_parameters.odr_out, oid_proxy,
+ 1, cl->database->database->url);
+#else
+ yaz_oi_set_string_oidval(&a->u.initRequest->otherInfo,
+ global_parameters.odr_out, VAL_PROXY,
+ 1, cl->database->database->url);
+#endif
+ }
+
+ if (send_apdu(cl, a) >= 0)
+ {
+ iochan_setflags(i, EVENT_INPUT);
+ cl->state = Client_Initializing;
+ }
+ else
+ cl->state = Client_Error;
+ odr_reset(global_parameters.odr_out);
+}
+
+static void pull_terms(NMEM nmem, struct ccl_rpn_node *n, char **termlist, int *num)
+{
+ switch (n->kind)
+ {
+ case CCL_RPN_AND:
+ case CCL_RPN_OR:
+ case CCL_RPN_NOT:
+ case CCL_RPN_PROX:
+ pull_terms(nmem, n->u.p[0], termlist, num);
+ pull_terms(nmem, n->u.p[1], termlist, num);
+ break;
+ case CCL_RPN_TERM:
+ termlist[(*num)++] = nmem_strdup(nmem, n->u.t.term);
+ break;
+ default: // NOOP
+ break;
+ }
+}
+
+// Extract terms from query into null-terminated termlist
+static void extract_terms(NMEM nmem, struct ccl_rpn_node *query, char **termlist)
+{
+ int num = 0;
+
+ pull_terms(nmem, query, termlist, &num);
+ termlist[num] = 0;
+}
+
+static void send_search(IOCHAN i)
+{
+ struct connection *co = iochan_getdata(i);
+ struct client *cl = co->client;
+ struct session *se = cl->session;
+ struct session_database *sdb = cl->database;
+ Z_APDU *a = zget_APDU(global_parameters.odr_out, Z_APDU_searchRequest);
+ int ndb, cerror, cpos;
+ char **databaselist;
+ Z_Query *zquery;
+ struct ccl_rpn_node *cn;
+ int ssub = 0, lslb = 100000, mspn = 10;
+ char *recsyn = 0;
+ char *piggyback = 0;
+ char *queryenc = 0;
+ yaz_iconv_t iconv = 0;
+
+ yaz_log(YLOG_DEBUG, "Sending search to %s", cl->database->database->url);
+
+ cn = ccl_find_str(sdb->database->ccl_map, se->query, &cerror, &cpos);
+ if (!cn)
+ return;
+
+ if (!se->relevance)
+ {
+ // Initialize relevance structure with query terms
+ char *p[512];
+ extract_terms(se->nmem, cn, p);
+ se->relevance = relevance_create(se->nmem, (const char **) p,
+ se->expected_maxrecs);
+ }
+
+ // constructing RPN query
+ a->u.searchRequest->query = zquery = odr_malloc(global_parameters.odr_out,
+ sizeof(Z_Query));
+ zquery->which = Z_Query_type_1;
+ zquery->u.type_1 = ccl_rpn_query(global_parameters.odr_out, cn);
+ ccl_rpn_delete(cn);
+
+ // converting to target encoding
+ if ((queryenc = session_setting_oneval(sdb, PZ_QUERYENCODING))){
+ iconv = yaz_iconv_open(queryenc, "UTF-8");
+ if (iconv){
+ yaz_query_charset_convert_rpnquery(zquery->u.type_1,
+ global_parameters.odr_out,
+ iconv);
+ yaz_iconv_close(iconv);
+ } else
+ yaz_log(YLOG_WARN, "Query encoding failed %s %s",
+ cl->database->database->url, queryenc);
+ }
+
+ for (ndb = 0; sdb->database->databases[ndb]; ndb++)
+ ;
+ databaselist = odr_malloc(global_parameters.odr_out, sizeof(char*) * ndb);
+ for (ndb = 0; sdb->database->databases[ndb]; ndb++)
+ databaselist[ndb] = sdb->database->databases[ndb];
+
+ if (!(piggyback = session_setting_oneval(sdb, PZ_PIGGYBACK)) || *piggyback == '1')
+ {
+ if ((recsyn = session_setting_oneval(sdb, PZ_REQUESTSYNTAX)))
+ {
+#if YAZ_VERSIONL >= 0x020163
+ a->u.searchRequest->preferredRecordSyntax =
+ yaz_string_to_oid_odr(yaz_oid_std(),
+ CLASS_RECSYN, recsyn,
+ global_parameters.odr_out);
+#else
+ a->u.searchRequest->preferredRecordSyntax =
+ yaz_str_to_z3950oid(global_parameters.odr_out,
+ CLASS_RECSYN, recsyn);
+#endif
+ }
+ a->u.searchRequest->smallSetUpperBound = &ssub;
+ a->u.searchRequest->largeSetLowerBound = &lslb;
+ a->u.searchRequest->mediumSetPresentNumber = &mspn;
+ }
+ a->u.searchRequest->resultSetName = "Default";
+ a->u.searchRequest->databaseNames = databaselist;
+ a->u.searchRequest->num_databaseNames = ndb;
+
+
+ { //scope for sending and logging queries
+ WRBUF wbquery = wrbuf_alloc();
+ yaz_query_to_wrbuf(wbquery, zquery);
+
+
+ if (send_apdu(cl, a) >= 0)
+ {
+ iochan_setflags(i, EVENT_INPUT);
+ cl->state = Client_Searching;
+ cl->requestid = se->requestid;
+ yaz_log(YLOG_LOG, "SearchRequest %s %s %s",
+ cl->database->database->url,
+ queryenc ? queryenc : "UTF-8",
+ wrbuf_cstr(wbquery));
+ }
+ else {
+ cl->state = Client_Error;
+ yaz_log(YLOG_WARN, "Failed SearchRequest %s %s %s",
+ cl->database->database->url,
+ queryenc ? queryenc : "UTF-8",
+ wrbuf_cstr(wbquery));
+ }
+
+ wrbuf_destroy(wbquery);
+ }
+
+ odr_reset(global_parameters.odr_out);
+}
+
+static void send_present(IOCHAN i)
+{
+ struct connection *co = iochan_getdata(i);
+ struct client *cl = co->client;
+ struct session_database *sdb = cl->database;
+ Z_APDU *a = zget_APDU(global_parameters.odr_out, Z_APDU_presentRequest);
+ int toget;
+ int start = cl->records + 1;
+ char *recsyn;
+
+ toget = global_parameters.chunk;
+ if (toget > global_parameters.toget - cl->records)
+ toget = global_parameters.toget - cl->records;
+ if (toget > cl->hits - cl->records)
+ toget = cl->hits - cl->records;
+
+ yaz_log(YLOG_DEBUG, "Trying to present %d records\n", toget);
+
+ a->u.presentRequest->resultSetStartPoint = &start;
+ a->u.presentRequest->numberOfRecordsRequested = &toget;
+
+ a->u.presentRequest->resultSetId = "Default";
+
+ if ((recsyn = session_setting_oneval(sdb, PZ_REQUESTSYNTAX)))
+ {
+#if YAZ_VERSIONL >= 0x020163
+ a->u.presentRequest->preferredRecordSyntax =
+ yaz_string_to_oid_odr(yaz_oid_std(),
+ CLASS_RECSYN, recsyn,
+ global_parameters.odr_out);
+#else
+ a->u.presentRequest->preferredRecordSyntax =
+ yaz_str_to_z3950oid(global_parameters.odr_out,
+ CLASS_RECSYN, recsyn);
+#endif
+ }
+
+ if (send_apdu(cl, a) >= 0)
+ {
+ iochan_setflags(i, EVENT_INPUT);
+ cl->state = Client_Presenting;
+ }
+ else
+ cl->state = Client_Error;
+ odr_reset(global_parameters.odr_out);
+}
+
+static void do_initResponse(IOCHAN i, Z_APDU *a)
+{
+ struct connection *co = iochan_getdata(i);
+ struct client *cl = co->client;
+ Z_InitResponse *r = a->u.initResponse;
+
+ yaz_log(YLOG_DEBUG, "Init response %s", cl->database->database->url);
+
+ if (*r->result)
+ {
+ cl->state = Client_Idle;
+ }
+ else
+ cl->state = Client_Failed; // FIXME need to do something to the connection
+}
+
+static void do_searchResponse(IOCHAN i, Z_APDU *a)
+{
+ struct connection *co = iochan_getdata(i);
+ struct client *cl = co->client;
+ struct session *se = cl->session;
+ Z_SearchResponse *r = a->u.searchResponse;
+
+ yaz_log(YLOG_DEBUG, "Search response %s (status=%d)",
+ cl->database->database->url, *r->searchStatus);
+
+ if (*r->searchStatus)
+ {
+ cl->hits = *r->resultCount;
+ se->total_hits += cl->hits;
+ if (r->presentStatus && !*r->presentStatus && r->records)
+ {
+ yaz_log(YLOG_DEBUG, "Records in search response %s",
+ cl->database->database->url);
+ ingest_records(cl, r->records);
+ }
+ cl->state = Client_Idle;
+ }
+ else
+ { /*"FAILED"*/
+ cl->hits = 0;
+ cl->state = Client_Error;
+ if (r->records) {
+ Z_Records *recs = r->records;
+ if (recs->which == Z_Records_NSD)
+ {
+ yaz_log(YLOG_WARN,
+ "Search response: Non-surrogate diagnostic %s",
+ cl->database->database->url);
+ cl->diagnostic = *recs->u.nonSurrogateDiagnostic->condition;
+ cl->state = Client_Error;
+ }
+ }
+ }
+}
+
+static void do_closeResponse(IOCHAN i, Z_APDU *a)
+{
+ struct connection *co = iochan_getdata(i);
+ struct client *cl = co->client;
+ /* Z_Close *r = a->u.close; */
+
+ yaz_log(YLOG_WARN, "Close response %s", cl->database->database->url);
+
+ cl->state = Client_Failed;
+ connection_destroy(co);
+}
+
+
+char *normalize_mergekey(char *buf, int skiparticle)
+{
+ char *p = buf, *pout = buf;
+
+ if (skiparticle)
+ {
+ char firstword[64];
+ char articles[] = "the den der die des an a "; // must end in space
+
+ while (*p && !isalnum(*p))
+ p++;
+ pout = firstword;
+ while (*p && *p != ' ' && pout - firstword < 62)
+ *(pout++) = tolower(*(p++));
+ *(pout++) = ' ';
+ *(pout++) = '\0';
+ if (!strstr(articles, firstword))
+ p = buf;
+ pout = buf;
+ }
+
+ while (*p)
+ {
+ while (*p && !isalnum(*p))
+ p++;
+ while (isalnum(*p))
+ *(pout++) = tolower(*(p++));
+ if (*p)
+ *(pout++) = ' ';
+ while (*p && !isalnum(*p))
+ p++;
+ }
+ if (buf != pout)
+ do {
+ *(pout--) = '\0';
+ }
+ while (pout > buf && *pout == ' ');
+
+ return buf;
+}
+
+static void add_facet(struct session *s, const char *type, const char *value)
+{
+ int i;
+
+ if (!*value)
+ return;
+ for (i = 0; i < s->num_termlists; i++)
+ if (!strcmp(s->termlists[i].name, type))
+ break;
+ if (i == s->num_termlists)
+ {
+ if (i == SESSION_MAX_TERMLISTS)
+ {
+ yaz_log(YLOG_FATAL, "Too many termlists");
+ exit(1);
+ }
+ s->termlists[i].name = nmem_strdup(s->nmem, type);
+ s->termlists[i].termlist = termlist_create(s->nmem, s->expected_maxrecs, 15);
+ s->num_termlists = i + 1;
+ }
+ termlist_insert(s->termlists[i].termlist, value);
+}
+
+static xmlDoc *normalize_record(struct client *cl, Z_External *rec)
+{
+ struct database_retrievalmap *m;
+ struct database *db = cl->database->database;
+ xmlNode *res;
+ xmlDoc *rdoc;
+
+ // First normalize to XML
+ if (db->yaz_marc)
+ {
+ char *buf;
+ int len;
+ if (rec->which != Z_External_octet)
+ {
+ yaz_log(YLOG_WARN, "Unexpected external branch, probably BER %s",
+ cl->database->database->url);
+ return 0;
+ }
+ buf = (char*) rec->u.octet_aligned->buf;
+ len = rec->u.octet_aligned->len;
+ if (yaz_marc_read_iso2709(db->yaz_marc, buf, len) < 0)
+ {
+ yaz_log(YLOG_WARN, "Failed to decode MARC %s",
+ cl->database->database->url);
+ return 0;
+ }
+
+ yaz_marc_write_using_libxml2(db->yaz_marc, 1);
+ if (yaz_marc_write_xml(db->yaz_marc, &res,
+ "http://www.loc.gov/MARC21/slim", 0, 0) < 0)
+ {
+ yaz_log(YLOG_WARN, "Failed to encode as XML %s",
+ cl->database->database->url);
+ return 0;
+ }
+ rdoc = xmlNewDoc((xmlChar *) "1.0");
+ xmlDocSetRootElement(rdoc, res);
+
+ }
+ else
+ {
+ yaz_log(YLOG_FATAL,
+ "Unknown native_syntax in normalize_record from %s",
+ cl->database->database->url);
+ exit(1);
+ }
+
+ if (global_parameters.dump_records){
+ fprintf(stderr,
+ "Input Record (normalized) from %s\n----------------\n",
+ cl->database->database->url);
+#if LIBXML_VERSION >= 20600
+ xmlDocFormatDump(stderr, rdoc, 1);
+#else
+ xmlDocDump(stderr, rdoc);
+#endif
+ }
+
+ for (m = db->map; m; m = m->next){
+ xmlDoc *new = 0;
+
+#if 1
+ {
+ xmlNodePtr root = 0;
+ new = xsltApplyStylesheet(m->stylesheet, rdoc, 0);
+ root= xmlDocGetRootElement(new);
+ if (!new || !root || !(root->children))
+ {
+ yaz_log(YLOG_WARN, "XSLT transformation failed from %s",
+ cl->database->database->url);
+ xmlFreeDoc(new);
+ xmlFreeDoc(rdoc);
+ return 0;
+ }
+ }
+#endif
+
+#if 0
+ // do it another way to detect transformation errors right now
+ // but does not seem to work either!
+ {
+ xsltTransformContextPtr ctxt;
+ ctxt = xsltNewTransformContext(m->stylesheet, rdoc);
+ new = xsltApplyStylesheetUser(m->stylesheet, rdoc, 0, 0, 0, ctxt);
+ if ((ctxt->state == XSLT_STATE_ERROR) ||
+ (ctxt->state == XSLT_STATE_STOPPED)){
+ yaz_log(YLOG_WARN, "XSLT transformation failed from %s",
+ cl->database->database->url);
+ xmlFreeDoc(new);
+ xmlFreeDoc(rdoc);
+ return 0;
+ }
+ }
+#endif
+
+ xmlFreeDoc(rdoc);
+ rdoc = new;
+ }
+ if (global_parameters.dump_records)
+ {
+ fprintf(stderr, "Record from %s\n----------------\n",
+ cl->database->database->url);
+#if LIBXML_VERSION >= 20600
+ xmlDocFormatDump(stderr, rdoc, 1);
+#else
+ xmlDocDump(stderr, rdoc);
+#endif
+ }
+ return rdoc;
+}
+
+// Extract what appears to be years from buf, storing highest and
+// lowest values.
+static int extract_years(const char *buf, int *first, int *last)
+{
+ *first = -1;
+ *last = -1;
+ while (*buf)
+ {
+ const char *e;
+ int len;
+
+ while (*buf && !isdigit(*buf))
+ buf++;
+ len = 0;
+ for (e = buf; *e && isdigit(*e); e++)
+ len++;
+ if (len == 4)
+ {
+ int value = atoi(buf);
+ if (*first < 0 || value < *first)
+ *first = value;
+ if (*last < 0 || value > *last)
+ *last = value;
+ }
+ buf = e;
+ }
+ return *first;
+}
+
+static struct record *ingest_record(struct client *cl, Z_External *rec)
+{
+ xmlDoc *xdoc = normalize_record(cl, rec);
+ xmlNode *root, *n;
+ struct record *res;
+ struct record_cluster *cluster;
+ struct session *se = cl->session;
+ xmlChar *mergekey, *mergekey_norm;
+ xmlChar *type = 0;
+ xmlChar *value = 0;
+ struct conf_service *service = global_parameters.server->service;
+
+ if (!xdoc)
+ return 0;
+
+ root = xmlDocGetRootElement(xdoc);
+ if (!(mergekey = xmlGetProp(root, (xmlChar *) "mergekey")))
+ {
+ yaz_log(YLOG_WARN, "No mergekey found in record");
+ xmlFreeDoc(xdoc);
+ return 0;
+ }
+
+ res = nmem_malloc(se->nmem, sizeof(struct record));
+ res->next = 0;
+ res->client = cl;
+ res->metadata = nmem_malloc(se->nmem,
+ sizeof(struct record_metadata*) * service->num_metadata);
+ memset(res->metadata, 0, sizeof(struct record_metadata*) * service->num_metadata);
+
+ mergekey_norm = (xmlChar *) nmem_strdup(se->nmem, (char*) mergekey);
+ xmlFree(mergekey);
+ normalize_mergekey((char *) mergekey_norm, 0);
+
+ cluster = reclist_insert(se->reclist, res, (char *) mergekey_norm,
+ &se->total_merged);
+ if (global_parameters.dump_records)
+ yaz_log(YLOG_LOG, "Cluster id %d from %s (#%d)", cluster->recid,
+ cl->database->database->url, cl->records);
+ if (!cluster)
+ {
+ /* no room for record */
+ xmlFreeDoc(xdoc);
+ return 0;
+ }
+ relevance_newrec(se->relevance, cluster);
+
+ for (n = root->children; n; n = n->next)
+ {
+ if (type)
+ xmlFree(type);
+ if (value)
+ xmlFree(value);
+ type = value = 0;
+
+ if (n->type != XML_ELEMENT_NODE)
+ continue;
+ if (!strcmp((const char *) n->name, "metadata"))
+ {
+ struct conf_metadata *md = 0;
+ struct conf_sortkey *sk = 0;
+ struct record_metadata **wheretoput, *newm;
+ int imeta;
+ int first, last;
+
+ type = xmlGetProp(n, (xmlChar *) "type");
+ value = xmlNodeListGetString(xdoc, n->children, 0);
+
+ if (!type || !value)
+ continue;
+
+ // First, find out what field we're looking at
+ for (imeta = 0; imeta < service->num_metadata; imeta++)
+ if (!strcmp((const char *) type, service->metadata[imeta].name))
+ {
+ md = &service->metadata[imeta];
+ if (md->sortkey_offset >= 0)
+ sk = &service->sortkeys[md->sortkey_offset];
+ break;
+ }
+ if (!md)
+ {
+ yaz_log(YLOG_WARN, "Ignoring unknown metadata element: %s", type);
+ continue;
+ }
+
+ // Find out where we are putting it
+ if (md->merge == Metadata_merge_no)
+ wheretoput = &res->metadata[imeta];
+ else
+ wheretoput = &cluster->metadata[imeta];
+
+ // Put it there
+ newm = nmem_malloc(se->nmem, sizeof(struct record_metadata));
+ newm->next = 0;
+ if (md->type == Metadata_type_generic)
+ {
+ char *p, *pe;
+ for (p = (char *) value; *p && isspace(*p); p++)
+ ;
+ for (pe = p + strlen(p) - 1;
+ pe > p && strchr(" ,/.:([", *pe); pe--)
+ *pe = '\0';
+ newm->data.text = nmem_strdup(se->nmem, p);
+
+ }
+ else if (md->type == Metadata_type_year)
+ {
+ if (extract_years((char *) value, &first, &last) < 0)
+ continue;
+ }
+ else
+ {
+ yaz_log(YLOG_WARN, "Unknown type in metadata element %s", type);
+ continue;
+ }
+ if (md->type == Metadata_type_year && md->merge != Metadata_merge_range)
+ {
+ yaz_log(YLOG_WARN, "Only range merging supported for years");
+ continue;
+ }
+ if (md->merge == Metadata_merge_unique)
+ {
+ struct record_metadata *mnode;
+ for (mnode = *wheretoput; mnode; mnode = mnode->next)
+ if (!strcmp((const char *) mnode->data.text, newm->data.text))
+ break;
+ if (!mnode)
+ {
+ newm->next = *wheretoput;
+ *wheretoput = newm;
+ }
+ }
+ else if (md->merge == Metadata_merge_longest)
+ {
+ if (!*wheretoput ||
+ strlen(newm->data.text) > strlen((*wheretoput)->data.text))
+ {
+ *wheretoput = newm;
+ if (sk)
+ {
+ char *s = nmem_strdup(se->nmem, newm->data.text);
+ if (!cluster->sortkeys[md->sortkey_offset])
+ cluster->sortkeys[md->sortkey_offset] =
+ nmem_malloc(se->nmem, sizeof(union data_types));
+ normalize_mergekey(s,
+ (sk->type == Metadata_sortkey_skiparticle));
+ cluster->sortkeys[md->sortkey_offset]->text = s;
+ }
+ }
+ }
+ else if (md->merge == Metadata_merge_all || md->merge == Metadata_merge_no)
+ {
+ newm->next = *wheretoput;
+ *wheretoput = newm;
+ }
+ else if (md->merge == Metadata_merge_range)
+ {
+ assert(md->type == Metadata_type_year);
+ if (!*wheretoput)
+ {
+ *wheretoput = newm;
+ (*wheretoput)->data.number.min = first;
+ (*wheretoput)->data.number.max = last;
+ if (sk)
+ cluster->sortkeys[md->sortkey_offset] = &newm->data;
+ }
+ else
+ {
+ if (first < (*wheretoput)->data.number.min)
+ (*wheretoput)->data.number.min = first;
+ if (last > (*wheretoput)->data.number.max)
+ (*wheretoput)->data.number.max = last;
+ }
+#ifdef GAGA
+ if (sk)
+ {
+ union data_types *sdata = cluster->sortkeys[md->sortkey_offset];
+ yaz_log(YLOG_LOG, "SK range: %d-%d", sdata->number.min, sdata->number.max);
+ }
+#endif
+ }
+ else
+ yaz_log(YLOG_WARN, "Don't know how to merge on element name %s", md->name);
+
+ if (md->rank)
+ relevance_countwords(se->relevance, cluster,
+ (char *) value, md->rank);
+ if (md->termlist)
+ {
+ if (md->type == Metadata_type_year)
+ {
+ char year[64];
+ sprintf(year, "%d", last);
+ add_facet(se, (char *) type, year);
+ if (first != last)
+ {
+ sprintf(year, "%d", first);
+ add_facet(se, (char *) type, year);
+ }
+ }
+ else
+ add_facet(se, (char *) type, (char *) value);
+ }
+ xmlFree(type);
+ xmlFree(value);
+ type = value = 0;
+ }
+ else
+ yaz_log(YLOG_WARN, "Unexpected element %s in internal record", n->name);
+ }
+ if (type)
+ xmlFree(type);
+ if (value)
+ xmlFree(value);
+
+ xmlFreeDoc(xdoc);
+
+ relevance_donerecord(se->relevance, cluster);
+ se->total_records++;
+
+ return res;
+}
+
+// Retrieve first defined value for 'name' for given database.
+// Will be extended to take into account user associated with session
+char *session_setting_oneval(struct session_database *db, int offset)
+{
+ if (!db->settings[offset])
+ return "";
+ return db->settings[offset]->value;
+}
+
+static void ingest_records(struct client *cl, Z_Records *r)
+{
+#if USE_TIMING
+ yaz_timing_t t = yaz_timing_create();
+#endif
+ struct record *rec;
+ struct session *s = cl->session;
+ Z_NamePlusRecordList *rlist;
+ int i;
+
+ if (r->which != Z_Records_DBOSD)
+ return;
+ rlist = r->u.databaseOrSurDiagnostics;
+ for (i = 0; i < rlist->num_records; i++)
+ {
+ Z_NamePlusRecord *npr = rlist->records[i];
+
+ cl->records++;
+ if (npr->which != Z_NamePlusRecord_databaseRecord)
+ {
+ yaz_log(YLOG_WARN,
+ "Unexpected record type, probably diagnostic %s",
+ cl->database->database->url);
+ continue;
+ }
+
+ rec = ingest_record(cl, npr->u.databaseRecord);
+ if (!rec)
+ continue;
+ }
+ if (s->watchlist[SESSION_WATCH_RECORDS].fun && rlist->num_records)
+ session_alert_watch(s, SESSION_WATCH_RECORDS);
+
+#if USE_TIMING
+ yaz_timing_stop(t);
+ yaz_log(YLOG_LOG, "ingest_records %6.5f %3.2f %3.2f",
+ yaz_timing_get_real(t), yaz_timing_get_user(t),
+ yaz_timing_get_sys(t));
+ yaz_timing_destroy(&t);
+#endif
+}
+
+static void do_presentResponse(IOCHAN i, Z_APDU *a)
+{
+ struct connection *co = iochan_getdata(i);
+ struct client *cl = co->client;
+ Z_PresentResponse *r = a->u.presentResponse;
+
+ if (r->records) {
+ Z_Records *recs = r->records;
+ if (recs->which == Z_Records_NSD)
+ {
+ yaz_log(YLOG_WARN, "Non-surrogate diagnostic %s",
+ cl->database->database->url);
+ cl->diagnostic = *recs->u.nonSurrogateDiagnostic->condition;
+ cl->state = Client_Error;
+ }
+ }
+
+ if (!*r->presentStatus && cl->state != Client_Error)
+ {
+ yaz_log(YLOG_DEBUG, "Good Present response %s",
+ cl->database->database->url);
+ ingest_records(cl, r->records);
+ cl->state = Client_Idle;
+ }
+ else if (*r->presentStatus)
+ {
+ yaz_log(YLOG_WARN, "Bad Present response %s",
+ cl->database->database->url);
+ cl->state = Client_Error;
+ }
+}
+
+static void handler(IOCHAN i, int event)
+{
+ struct connection *co = iochan_getdata(i);
+ struct client *cl = co->client;
+ struct session *se = 0;
+
+ if (cl)
+ se = cl->session;
+ else
+ {
+ yaz_log(YLOG_WARN, "Destroying orphan connection");
+ connection_destroy(co);
+ return;
+ }
+
+ if (co->state == Conn_Connecting && event & EVENT_OUTPUT)
+ {
+ int errcode;
+ socklen_t errlen = sizeof(errcode);
+
+ if (getsockopt(cs_fileno(co->link), SOL_SOCKET, SO_ERROR, &errcode,
+ &errlen) < 0 || errcode != 0)
+ {
+ client_fatal(cl);
+ return;
+ }
+ else
+ {
+ yaz_log(YLOG_DEBUG, "Connect OK");
+ co->state = Conn_Open;
+ if (cl)
+ cl->state = Client_Connected;
+ }
+ }
+
+ else if (event & EVENT_INPUT)
+ {
+ int len = cs_get(co->link, &co->ibuf, &co->ibufsize);
+
+ if (len < 0)
+ {
+ yaz_log(YLOG_WARN|YLOG_ERRNO, "Error reading from %s",
+ cl->database->database->url);
+ connection_destroy(co);
+ return;
+ }
+ else if (len == 0)
+ {
+ yaz_log(YLOG_WARN, "EOF reading from %s", cl->database->database->url);
+ connection_destroy(co);
+ return;
+ }
+ else if (len > 1) // We discard input if we have no connection
+ {
+ co->state = Conn_Open;
+
+ if (cl && (cl->requestid == se->requestid || cl->state == Client_Initializing))
+ {
+ Z_APDU *a;
+
+ odr_reset(global_parameters.odr_in);
+ odr_setbuf(global_parameters.odr_in, co->ibuf, len, 0);
+ if (!z_APDU(global_parameters.odr_in, &a, 0, 0))
+ {
+ client_fatal(cl);
+ return;
+ }
+ switch (a->which)
+ {
+ case Z_APDU_initResponse:
+ do_initResponse(i, a);
+ break;
+ case Z_APDU_searchResponse:
+ do_searchResponse(i, a);
+ break;
+ case Z_APDU_presentResponse:
+ do_presentResponse(i, a);
+ break;
+ case Z_APDU_close:
+ do_closeResponse(i, a);
+ break;
+ default:
+ yaz_log(YLOG_WARN,
+ "Unexpected Z39.50 response from %s",
+ cl->database->database->url);
+ client_fatal(cl);
+ return;
+ }
+ // We aren't expecting staggered output from target
+ // if (cs_more(t->link))
+ // iochan_setevent(i, EVENT_INPUT);
+ }
+ else // we throw away response and go to idle mode
+ {
+ yaz_log(YLOG_DEBUG, "Ignoring result of expired operation");
+ cl->state = Client_Idle;
+ }
+ }
+ /* if len==1 we do nothing but wait for more input */
+ }
+
+ if (cl->state == Client_Connected) {
+ send_init(i);
+ }
+
+ if (cl->state == Client_Idle)
+ {
+ if (cl->requestid != se->requestid && *se->query) {
+ send_search(i);
+ }
+ else if (cl->hits > 0 && cl->records < global_parameters.toget &&
+ cl->records < cl->hits) {
+ send_present(i);
+ }
+ }
+}
+
+// Disassociate connection from client
+static void connection_release(struct connection *co)
+{
+ struct client *cl = co->client;
+
+ yaz_log(YLOG_DEBUG, "Connection release %s", co->host->hostport);
+ if (!cl)
+ return;
+ cl->connection = 0;
+ co->client = 0;
+}
+
+// Close connection and recycle structure
+static void connection_destroy(struct connection *co)
+{
+ struct host *h = co->host;
+ cs_close(co->link);
+ iochan_destroy(co->iochan);
+
+ yaz_log(YLOG_DEBUG, "Connection destroy %s", co->host->hostport);
+ if (h->connections == co)
+ h->connections = co->next;
+ else
+ {
+ struct connection *pco;
+ for (pco = h->connections; pco && pco->next != co; pco = pco->next)
+ ;
+ if (pco)
+ pco->next = co->next;
+ else
+ abort();
+ }
+ if (co->client)
+ {
+ if (co->client->state != Client_Idle)
+ co->client->state = Client_Disconnected;
+ co->client->connection = 0;
+ }
+ co->next = connection_freelist;
+ connection_freelist = co;
+}
+
+// Creates a new connection for client, associated with the host of
+// client's database
+static struct connection *connection_create(struct client *cl)
+{
+ struct connection *new;
+ COMSTACK link;
+ int res;
+ void *addr;
+
+
+ if (!(link = cs_create(tcpip_type, 0, PROTO_Z3950)))
+ {
+ yaz_log(YLOG_FATAL|YLOG_ERRNO, "Failed to create comstack");
+ exit(1);
+ }
+
+ if (0 == strlen(global_parameters.zproxy_override)){
+ /* no Z39.50 proxy needed - direct connect */
+ yaz_log(YLOG_DEBUG, "Connection create %s", cl->database->database->url);
+
+ if (!(addr = cs_straddr(link, cl->database->database->host->ipport)))
+ {
+ yaz_log(YLOG_WARN|YLOG_ERRNO,
+ "Lookup of IP address %s failed",
+ cl->database->database->host->ipport);
+ return 0;
+ }
+
+ } else {
+ /* Z39.50 proxy connect */
+ yaz_log(YLOG_DEBUG, "Connection create %s proxy %s",
+ cl->database->database->url, global_parameters.zproxy_override);
+
+ if (!(addr = cs_straddr(link, global_parameters.zproxy_override)))
+ {
+ yaz_log(YLOG_WARN|YLOG_ERRNO,
+ "Lookup of IP address %s failed",
+ global_parameters.zproxy_override);
+ return 0;
+ }
+ }
+
+ res = cs_connect(link, addr);
+ if (res < 0)
+ {
+ yaz_log(YLOG_WARN|YLOG_ERRNO, "cs_connect %s", cl->database->database->url);
+ return 0;
+ }
+
+ if ((new = connection_freelist))
+ connection_freelist = new->next;
+ else
+ {
+ new = xmalloc(sizeof (struct connection));
+ new->ibuf = 0;
+ new->ibufsize = 0;
+ }
+ new->state = Conn_Connecting;
+ new->host = cl->database->database->host;
+ new->next = new->host->connections;
+ new->host->connections = new;
+ new->client = cl;
+ cl->connection = new;
+ new->link = link;
+
+ new->iochan = iochan_create(cs_fileno(link), handler, 0);
+ iochan_setdata(new->iochan, new);
+ new->iochan->next = channel_list;
+ channel_list = new->iochan;
+ return new;
+}
+
+// Close connection and set state to error
+static void client_fatal(struct client *cl)
+{
+ yaz_log(YLOG_WARN, "Fatal error from %s", cl->database->database->url);
+ connection_destroy(cl->connection);
+ cl->state = Client_Error;
+}
+
+// Ensure that client has a connection associated
+static int client_prep_connection(struct client *cl)
+{
+ struct connection *co;
+ struct session *se = cl->session;
+ struct host *host = cl->database->database->host;
+
+ co = cl->connection;
+
+ yaz_log(YLOG_DEBUG, "Client prep %s", cl->database->database->url);
+
+ if (!co)
+ {
+ // See if someone else has an idle connection
+ // We should look at timestamps here to select the longest-idle connection
+ for (co = host->connections; co; co = co->next)
+ if (co->state == Conn_Open && (!co->client || co->client->session != se))
+ break;
+ if (co)
+ {
+ connection_release(co);
+ cl->connection = co;
+ co->client = cl;
+ }
+ else
+ co = connection_create(cl);
+ }
+ if (co)
+ {
+ if (co->state == Conn_Connecting)
+ {
+ cl->state = Client_Connecting;
+ iochan_setflag(co->iochan, EVENT_OUTPUT);
+ }
+ else if (co->state == Conn_Open)
+ {
+ if (cl->state == Client_Error || cl->state == Client_Disconnected)
+ cl->state = Client_Idle;
+ iochan_setflag(co->iochan, EVENT_OUTPUT);
+ }
+ return 1;
+ }
+ else
+ return 0;
+}
+
+static struct client *client_create(void)
+{
+ struct client *r;
+ if (client_freelist)
+ {
+ r = client_freelist;
+ client_freelist = client_freelist->next;
+ }
+ else
+ r = xmalloc(sizeof(struct client));
+ r->database = 0;
+ r->connection = 0;
+ r->session = 0;
+ r->hits = 0;
+ r->records = 0;
+ r->setno = 0;
+ r->requestid = -1;
+ r->diagnostic = 0;
+ r->state = Client_Disconnected;
+ r->next = 0;
+ return r;
+}
+
+void client_destroy(struct client *c)
+{
+ struct session *se = c->session;
+ if (c == se->clients)
+ se->clients = c->next;
+ else
+ {
+ struct client *cc;
+ for (cc = se->clients; cc && cc->next != c; cc = cc->next)
+ ;
+ if (cc)
+ cc->next = c->next;
+ }
+ if (c->connection)
+ connection_release(c->connection);
+ c->next = client_freelist;
+ client_freelist = c;
+}
+
+void session_set_watch(struct session *s, int what, session_watchfun fun, void *data)
+{
+ s->watchlist[what].fun = fun;
+ s->watchlist[what].data = data;
+}
+
+void session_alert_watch(struct session *s, int what)
+{
+ if (!s->watchlist[what].fun)
+ return;
+ (*s->watchlist[what].fun)(s->watchlist[what].data);
+ s->watchlist[what].fun = 0;
+ s->watchlist[what].data = 0;
+}
+
+//callback for grep_databases
+static void select_targets_callback(void *context, struct session_database *db)
+{
+ struct session *se = (struct session*) context;
+ struct client *cl = client_create();
+ cl->database = db;
+ cl->session = se;
+ cl->next = se->clients;
+ se->clients = cl;
+}
+
+// Associates a set of clients with a session;
+// Note: Session-databases represent databases with per-session setting overrides
+int select_targets(struct session *se, struct database_criterion *crit)
+{
+ while (se->clients)
+ client_destroy(se->clients);
+
+ return session_grep_databases(se, crit, select_targets_callback);
+}
+
+int session_active_clients(struct session *s)
+{
+ struct client *c;
+ int res = 0;
+
+ for (c = s->clients; c; c = c->next)
+ if (c->connection && (c->state == Client_Connecting ||
+ c->state == Client_Initializing ||
+ c->state == Client_Searching ||
+ c->state == Client_Presenting))
+ res++;
+
+ return res;
+}
+
+// parses crit1=val1,crit2=val2|val3,...
+static struct database_criterion *parse_filter(NMEM m, const char *buf)
+{
+ struct database_criterion *res = 0;
+ char **values;
+ int num;
+ int i;
+
+ if (!buf || !*buf)
+ return 0;
+ nmem_strsplit(m, ",", buf, &values, &num);
+ for (i = 0; i < num; i++)
+ {
+ char **subvalues;
+ int subnum;
+ int subi;
+ struct database_criterion *new = nmem_malloc(m, sizeof(*new));
+ char *eq = strchr(values[i], '=');
+ if (!eq)
+ {
+ yaz_log(YLOG_WARN, "Missing equal-sign in filter");
+ return 0;
+ }
+ *(eq++) = '\0';
+ new->name = values[i];
+ nmem_strsplit(m, "|", eq, &subvalues, &subnum);
+ new->values = 0;
+ for (subi = 0; subi < subnum; subi++)
+ {
+ struct database_criterion_value *newv = nmem_malloc(m, sizeof(*newv));
+ newv->value = subvalues[subi];
+ newv->next = new->values;
+ new->values = newv;
+ }
+ new->next = res;
+ res = new;
+ }
+ return res;
+}
+
+char *search(struct session *se, char *query, char *filter)
+{
+ int live_channels = 0;
+ struct client *cl;
+ struct database_criterion *criteria;
+
+ yaz_log(YLOG_DEBUG, "Search");
+
+ nmem_reset(se->nmem);
+ criteria = parse_filter(se->nmem, filter);
+ strcpy(se->query, query);
+ se->requestid++;
+ select_targets(se, criteria);
+ for (cl = se->clients; cl; cl = cl->next)
+ {
+ if (client_prep_connection(cl))
+ live_channels++;
+ }
+ if (live_channels)
+ {
+ int maxrecs = live_channels * global_parameters.toget;
+ se->num_termlists = 0;
+ se->reclist = reclist_create(se->nmem, maxrecs);
+ // This will be initialized in send_search()
+ se->relevance = 0;
+ se->total_records = se->total_hits = se->total_merged = 0;
+ se->expected_maxrecs = maxrecs;
+ }
+ else
+ return "NOTARGETS";
+
+ return 0;
+}
+
+// Apply a session override to a database
+void session_apply_setting(struct session *se, char *dbname, char *setting, char *value)
+{
+ struct session_database *sdb;
+
+ for (sdb = se->databases; sdb; sdb = sdb->next)
+ if (!strcmp(dbname, sdb->database->url))
+ {
+ struct setting *new = nmem_malloc(se->session_nmem, sizeof(*new));
+ int offset = settings_offset(setting);
+
+ if (offset < 0)
+ {
+ yaz_log(YLOG_WARN, "Unknown setting %s", setting);
+ return;
+ }
+ new->precedence = 0;
+ new->target = dbname;
+ new->name = setting;
+ new->value = value;
+ new->next = sdb->settings[offset];
+ sdb->settings[offset] = new;
+ break;
+ }
+ if (!sdb)
+ yaz_log(YLOG_WARN, "Unknown database in setting override: %s", dbname);
+}
+
+void session_init_databases_fun(void *context, struct database *db)
+{
+ struct session *se = (struct session *) context;
+ struct session_database *new = nmem_malloc(se->session_nmem, sizeof(*new));
+ int num = settings_num();
+ int i;
+
+ new->database = db;
+ new->settings = nmem_malloc(se->session_nmem, sizeof(struct settings *) * num);
+ for (i = 0; i < num; i++)
+ new->settings[i] = db->settings[i];
+ new->next = se->databases;
+ se->databases = new;
+}
+
+// Initialize session_database list -- this represents this session's view
+// of the database list -- subject to modification by the settings ws command
+void session_init_databases(struct session *se)
+{
+ se->databases = 0;
+ grep_databases(se, 0, session_init_databases_fun);
+}
+
+void destroy_session(struct session *s)
+{
+ yaz_log(YLOG_LOG, "Destroying session");
+ while (s->clients)
+ client_destroy(s->clients);
+ nmem_destroy(s->nmem);
+ wrbuf_destroy(s->wrbuf);
+}
+
+struct session *new_session(NMEM nmem)
+{
+ int i;
+ struct session *session = nmem_malloc(nmem, sizeof(*session));
+
+ yaz_log(YLOG_DEBUG, "New Pazpar2 session");
+
+ session->total_hits = 0;
+ session->total_records = 0;
+ session->num_termlists = 0;
+ session->reclist = 0;
+ session->requestid = -1;
+ session->clients = 0;
+ session->expected_maxrecs = 0;
+ session->query[0] = '\0';
+ session->session_nmem = nmem;
+ session->nmem = nmem_create();
+ session->wrbuf = wrbuf_alloc();
+ session_init_databases(session);
+ for (i = 0; i <= SESSION_WATCH_MAX; i++)
+ {
+ session->watchlist[i].data = 0;
+ session->watchlist[i].fun = 0;
+ }
+
+ return session;
+}
+
+struct hitsbytarget *hitsbytarget(struct session *se, int *count)
+{
+ static struct hitsbytarget res[1000]; // FIXME MM
+ struct client *cl;
+
+ *count = 0;
+ for (cl = se->clients; cl; cl = cl->next)
+ {
+ char *name = session_setting_oneval(cl->database, PZ_NAME);
+
+ res[*count].id = cl->database->database->url;
+ res[*count].name = *name ? name : "Unknown";
+ res[*count].hits = cl->hits;
+ res[*count].records = cl->records;
+ res[*count].diagnostic = cl->diagnostic;
+ res[*count].state = client_states[cl->state];
+ res[*count].connected = cl->connection ? 1 : 0;
+ (*count)++;
+ }
+
+ return res;
+}
+
+struct termlist_score **termlist(struct session *s, const char *name, int *num)
+{
+ int i;
+
+ for (i = 0; i < s->num_termlists; i++)
+ if (!strcmp((const char *) s->termlists[i].name, name))
+ return termlist_highscore(s->termlists[i].termlist, num);
+ return 0;
+}
+
+#ifdef MISSING_HEADERS
+void report_nmem_stats(void)
+{
+ size_t in_use, is_free;
+
+ nmem_get_memory_in_use(&in_use);
+ nmem_get_memory_free(&is_free);
+
+ yaz_log(YLOG_LOG, "nmem stat: use=%ld free=%ld",
+ (long) in_use, (long) is_free);
+}
+#endif
+
+struct record_cluster *show_single(struct session *s, int id)
+{
+ struct record_cluster *r;
+
+ reclist_rewind(s->reclist);
+ while ((r = reclist_read_record(s->reclist)))
+ if (r->recid == id)
+ return r;
+ return 0;
+}
+
+struct record_cluster **show(struct session *s, struct reclist_sortparms *sp, int start,
+ int *num, int *total, int *sumhits, NMEM nmem_show)
+{
+ struct record_cluster **recs = nmem_malloc(nmem_show, *num
+ * sizeof(struct record_cluster *));
+ struct reclist_sortparms *spp;
+ int i;
+#if USE_TIMING
+ yaz_timing_t t = yaz_timing_create();
+#endif
+
+ for (spp = sp; spp; spp = spp->next)
+ if (spp->type == Metadata_sortkey_relevance)
+ {
+ relevance_prepare_read(s->relevance, s->reclist);
+ break;
+ }
+ reclist_sort(s->reclist, sp);
+
+ *total = s->reclist->num_records;
+ *sumhits = s->total_hits;
+
+ for (i = 0; i < start; i++)
+ if (!reclist_read_record(s->reclist))
+ {
+ *num = 0;
+ recs = 0;
+ break;
+ }
+
+ for (i = 0; i < *num; i++)
+ {
+ struct record_cluster *r = reclist_read_record(s->reclist);
+ if (!r)
+ {
+ *num = i;
+ break;
+ }
+ recs[i] = r;
+ }
+#if USE_TIMING
+ yaz_timing_stop(t);
+ yaz_log(YLOG_LOG, "show %6.5f %3.2f %3.2f",
+ yaz_timing_get_real(t), yaz_timing_get_user(t),
+ yaz_timing_get_sys(t));
+ yaz_timing_destroy(&t);
+#endif
+ return recs;
+}
+
+void statistics(struct session *se, struct statistics *stat)
+{
+ struct client *cl;
+ int count = 0;
+
+ memset(stat, 0, sizeof(*stat));
+ for (cl = se->clients; cl; cl = cl->next)
+ {
+ if (!cl->connection)
+ stat->num_no_connection++;
+ switch (cl->state)
+ {
+ case Client_Connecting: stat->num_connecting++; break;
+ case Client_Initializing: stat->num_initializing++; break;
+ case Client_Searching: stat->num_searching++; break;
+ case Client_Presenting: stat->num_presenting++; break;
+ case Client_Idle: stat->num_idle++; break;
+ case Client_Failed: stat->num_failed++; break;
+ case Client_Error: stat->num_error++; break;
+ default: break;
+ }
+ count++;
+ }
+ stat->num_hits = se->total_hits;
+ stat->num_records = se->total_records;
+
+ stat->num_clients = count;
+}
+
+void start_http_listener(void)
+{
+ char hp[128] = "";
+ struct conf_server *ser = global_parameters.server;
+
+ if (*global_parameters.listener_override)
+ strcpy(hp, global_parameters.listener_override);
+ else
+ {
+ strcpy(hp, ser->host ? ser->host : "");
+ if (ser->port)
+ {
+ if (*hp)
+ strcat(hp, ":");
+ sprintf(hp + strlen(hp), "%d", ser->port);
+ }
+ }
+ http_init(hp);
+}
+
+void start_proxy(void)
+{
+ char hp[128] = "";
+ struct conf_server *ser = global_parameters.server;
+
+ if (*global_parameters.proxy_override)
+ strcpy(hp, global_parameters.proxy_override);
+ else if (ser->proxy_host || ser->proxy_port)
+ {
+ strcpy(hp, ser->proxy_host ? ser->proxy_host : "");
+ if (ser->proxy_port)
+ {
+ if (*hp)
+ strcat(hp, ":");
+ sprintf(hp + strlen(hp), "%d", ser->proxy_port);
+ }
+ }
+ else
+ return;
+
+ http_set_proxyaddr(hp, ser->myurl ? ser->myurl : "");
+}
+
+void start_zproxy(void)
+{
+ struct conf_server *ser = global_parameters.server;
+
+ if (*global_parameters.zproxy_override){
+ yaz_log(YLOG_LOG, "Z39.50 proxy %s",
+ global_parameters.zproxy_override);
+ return;
+ }
+
+ else if (ser->zproxy_host || ser->zproxy_port)
+ {
+ char hp[128] = "";
+
+ strcpy(hp, ser->zproxy_host ? ser->zproxy_host : "");
+ if (ser->zproxy_port)
+ {
+ if (*hp)
+ strcat(hp, ":");
+ else
+ strcat(hp, "@:");
+
+ sprintf(hp + strlen(hp), "%d", ser->zproxy_port);
+ }
+ strcpy(global_parameters.zproxy_override, hp);
+ yaz_log(YLOG_LOG, "Z39.50 proxy %s",
+ global_parameters.zproxy_override);
+
+ }
+ else
+ return;
+}
+
+
+
+/*
+ * Local variables:
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ * vim: shiftwidth=4 tabstop=8 expandtab
+ */
-/* $Id: pazpar2.c,v 1.78 2007-04-13 11:13:08 marc Exp $
+/* $Id: pazpar2.c,v 1.79 2007-04-16 09:03:25 adam Exp $
Copyright (c) 2006-2007, Index Data.
This file is part of Pazpar2.
02111-1307, USA.
*/
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <sys/time.h>
-#include <unistd.h>
-#include <sys/socket.h>
-#include <netdb.h>
-#include <signal.h>
-#include <ctype.h>
-#include <assert.h>
-
-#include <yaz/marcdisp.h>
-#include <yaz/comstack.h>
-#include <yaz/tcpip.h>
-#include <yaz/proto.h>
-#include <yaz/readconf.h>
-#include <yaz/pquery.h>
-#include <yaz/otherinfo.h>
-#include <yaz/yaz-util.h>
-#include <yaz/nmem.h>
-#include <yaz/query-charset.h>
-#include <yaz/querytowrbuf.h>
-#if YAZ_VERSIONL >= 0x020163
-#include <yaz/oid_db.h>
-#endif
-
#if HAVE_CONFIG_H
#include "cconfig.h"
#endif
-#define USE_TIMING 0
-#if USE_TIMING
-#include <yaz/timing.h>
-#endif
-#include <netinet/in.h>
+#include <signal.h>
#include "pazpar2.h"
-#include "eventl.h"
-#include "http.h"
-#include "termlists.h"
-#include "reclists.h"
-#include "relevance.h"
-#include "config.h"
#include "database.h"
#include "settings.h"
-#define MAX_CHUNK 15
-
-static void client_fatal(struct client *cl);
-static void connection_destroy(struct connection *co);
-static int client_prep_connection(struct client *cl);
-static void ingest_records(struct client *cl, Z_Records *r);
-void session_alert_watch(struct session *s, int what);
-
-IOCHAN channel_list = 0; // Master list of connections we're handling events to
-
-static struct connection *connection_freelist = 0;
-static struct client *client_freelist = 0;
-
-static char *client_states[] = {
- "Client_Connecting",
- "Client_Connected",
- "Client_Idle",
- "Client_Initializing",
- "Client_Searching",
- "Client_Presenting",
- "Client_Error",
- "Client_Failed",
- "Client_Disconnected",
- "Client_Stopped"
-};
-
-// Note: Some things in this structure will eventually move to configuration
-struct parameters global_parameters =
-{
- "",
- "",
- "",
- "",
- 0,
- 0,
- 30,
- "81",
- "Index Data PazPar2 (MasterKey)",
- VERSION,
- 600, // 10 minutes
- 60,
- 100,
- MAX_CHUNK,
- 0,
- 0
-};
-
-static int send_apdu(struct client *c, Z_APDU *a)
-{
- struct connection *co = c->connection;
- char *buf;
- int len, r;
-
- if (!z_APDU(global_parameters.odr_out, &a, 0, 0))
- {
- odr_perror(global_parameters.odr_out, "Encoding APDU");
- abort();
- }
- buf = odr_getbuf(global_parameters.odr_out, &len, 0);
- r = cs_put(co->link, buf, len);
- if (r < 0)
- {
- yaz_log(YLOG_WARN, "cs_put: %s", cs_errmsg(cs_errno(co->link)));
- return -1;
- }
- else if (r == 1)
- {
- fprintf(stderr, "cs_put incomplete (ParaZ does not handle that)\n");
- exit(1);
- }
- odr_reset(global_parameters.odr_out); /* release the APDU structure */
- co->state = Conn_Waiting;
- return 0;
-}
-
-// Set authentication token in init if one is set for the client
-// TODO: Extend this to handle other schemes than open (should be simple)
-static void init_authentication(struct client *cl, Z_InitRequest *req)
-{
- struct session_database *sdb = cl->database;
- char *auth = session_setting_oneval(sdb, PZ_AUTHENTICATION);
-
- if (auth)
- {
- Z_IdAuthentication *idAuth = odr_malloc(global_parameters.odr_out,
- sizeof(*idAuth));
- idAuth->which = Z_IdAuthentication_open;
- idAuth->u.open = auth;
- req->idAuthentication = idAuth;
- }
-}
-
-static void send_init(IOCHAN i)
-{
-
- struct connection *co = iochan_getdata(i);
- struct client *cl = co->client;
- Z_APDU *a = zget_APDU(global_parameters.odr_out, Z_APDU_initRequest);
-
- a->u.initRequest->implementationId = global_parameters.implementationId;
- a->u.initRequest->implementationName = global_parameters.implementationName;
- a->u.initRequest->implementationVersion =
- global_parameters.implementationVersion;
- ODR_MASK_SET(a->u.initRequest->options, Z_Options_search);
- ODR_MASK_SET(a->u.initRequest->options, Z_Options_present);
- ODR_MASK_SET(a->u.initRequest->options, Z_Options_namedResultSets);
-
- ODR_MASK_SET(a->u.initRequest->protocolVersion, Z_ProtocolVersion_1);
- ODR_MASK_SET(a->u.initRequest->protocolVersion, Z_ProtocolVersion_2);
- ODR_MASK_SET(a->u.initRequest->protocolVersion, Z_ProtocolVersion_3);
-
- init_authentication(cl, a->u.initRequest);
-
- /* add virtual host if tunneling through Z39.50 proxy */
-
- if (0 < strlen(global_parameters.zproxy_override)
- && 0 < strlen(cl->database->database->url))
- {
-#if YAZ_VERSIONL >= 0x020163
- const int *oid_proxy = yaz_string_to_oid(yaz_oid_std(),
- CLASS_USERINFO, OID_STR_PROXY);
- yaz_oi_set_string_oid(&a->u.initRequest->otherInfo,
- global_parameters.odr_out, oid_proxy,
- 1, cl->database->database->url);
-#else
- yaz_oi_set_string_oidval(&a->u.initRequest->otherInfo,
- global_parameters.odr_out, VAL_PROXY,
- 1, cl->database->database->url);
-#endif
- }
-
- if (send_apdu(cl, a) >= 0)
- {
- iochan_setflags(i, EVENT_INPUT);
- cl->state = Client_Initializing;
- }
- else
- cl->state = Client_Error;
- odr_reset(global_parameters.odr_out);
-}
-
-static void pull_terms(NMEM nmem, struct ccl_rpn_node *n, char **termlist, int *num)
-{
- switch (n->kind)
- {
- case CCL_RPN_AND:
- case CCL_RPN_OR:
- case CCL_RPN_NOT:
- case CCL_RPN_PROX:
- pull_terms(nmem, n->u.p[0], termlist, num);
- pull_terms(nmem, n->u.p[1], termlist, num);
- break;
- case CCL_RPN_TERM:
- termlist[(*num)++] = nmem_strdup(nmem, n->u.t.term);
- break;
- default: // NOOP
- break;
- }
-}
-
-// Extract terms from query into null-terminated termlist
-static void extract_terms(NMEM nmem, struct ccl_rpn_node *query, char **termlist)
-{
- int num = 0;
-
- pull_terms(nmem, query, termlist, &num);
- termlist[num] = 0;
-}
-
-static void send_search(IOCHAN i)
-{
- struct connection *co = iochan_getdata(i);
- struct client *cl = co->client;
- struct session *se = cl->session;
- struct session_database *sdb = cl->database;
- Z_APDU *a = zget_APDU(global_parameters.odr_out, Z_APDU_searchRequest);
- int ndb, cerror, cpos;
- char **databaselist;
- Z_Query *zquery;
- struct ccl_rpn_node *cn;
- int ssub = 0, lslb = 100000, mspn = 10;
- char *recsyn = 0;
- char *piggyback = 0;
- char *queryenc = 0;
- yaz_iconv_t iconv = 0;
-
- yaz_log(YLOG_DEBUG, "Sending search to %s", cl->database->database->url);
-
- cn = ccl_find_str(sdb->database->ccl_map, se->query, &cerror, &cpos);
- if (!cn)
- return;
-
- if (!se->relevance)
- {
- // Initialize relevance structure with query terms
- char *p[512];
- extract_terms(se->nmem, cn, p);
- se->relevance = relevance_create(se->nmem, (const char **) p,
- se->expected_maxrecs);
- }
-
- // constructing RPN query
- a->u.searchRequest->query = zquery = odr_malloc(global_parameters.odr_out,
- sizeof(Z_Query));
- zquery->which = Z_Query_type_1;
- zquery->u.type_1 = ccl_rpn_query(global_parameters.odr_out, cn);
- ccl_rpn_delete(cn);
-
- // converting to target encoding
- if ((queryenc = session_setting_oneval(sdb, PZ_QUERYENCODING))){
- iconv = yaz_iconv_open(queryenc, "UTF-8");
- if (iconv){
- yaz_query_charset_convert_rpnquery(zquery->u.type_1,
- global_parameters.odr_out,
- iconv);
- yaz_iconv_close(iconv);
- } else
- yaz_log(YLOG_WARN, "Query encoding failed %s %s",
- cl->database->database->url, queryenc);
- }
-
- for (ndb = 0; sdb->database->databases[ndb]; ndb++)
- ;
- databaselist = odr_malloc(global_parameters.odr_out, sizeof(char*) * ndb);
- for (ndb = 0; sdb->database->databases[ndb]; ndb++)
- databaselist[ndb] = sdb->database->databases[ndb];
-
- if (!(piggyback = session_setting_oneval(sdb, PZ_PIGGYBACK)) || *piggyback == '1')
- {
- if ((recsyn = session_setting_oneval(sdb, PZ_REQUESTSYNTAX)))
- {
-#if YAZ_VERSIONL >= 0x020163
- a->u.searchRequest->preferredRecordSyntax =
- yaz_string_to_oid_odr(yaz_oid_std(),
- CLASS_RECSYN, recsyn,
- global_parameters.odr_out);
-#else
- a->u.searchRequest->preferredRecordSyntax =
- yaz_str_to_z3950oid(global_parameters.odr_out,
- CLASS_RECSYN, recsyn);
-#endif
- }
- a->u.searchRequest->smallSetUpperBound = &ssub;
- a->u.searchRequest->largeSetLowerBound = &lslb;
- a->u.searchRequest->mediumSetPresentNumber = &mspn;
- }
- a->u.searchRequest->resultSetName = "Default";
- a->u.searchRequest->databaseNames = databaselist;
- a->u.searchRequest->num_databaseNames = ndb;
-
-
- { //scope for sending and logging queries
- WRBUF wbquery = wrbuf_alloc();
- yaz_query_to_wrbuf(wbquery, zquery);
-
-
- if (send_apdu(cl, a) >= 0)
- {
- iochan_setflags(i, EVENT_INPUT);
- cl->state = Client_Searching;
- cl->requestid = se->requestid;
- yaz_log(YLOG_LOG, "SearchRequest %s %s %s",
- cl->database->database->url,
- queryenc ? queryenc : "UTF-8",
- wrbuf_cstr(wbquery));
- }
- else {
- cl->state = Client_Error;
- yaz_log(YLOG_WARN, "Failed SearchRequest %s %s %s",
- cl->database->database->url,
- queryenc ? queryenc : "UTF-8",
- wrbuf_cstr(wbquery));
- }
-
- wrbuf_destroy(wbquery);
- }
-
- odr_reset(global_parameters.odr_out);
-}
-
-static void send_present(IOCHAN i)
-{
- struct connection *co = iochan_getdata(i);
- struct client *cl = co->client;
- struct session_database *sdb = cl->database;
- Z_APDU *a = zget_APDU(global_parameters.odr_out, Z_APDU_presentRequest);
- int toget;
- int start = cl->records + 1;
- char *recsyn;
-
- toget = global_parameters.chunk;
- if (toget > global_parameters.toget - cl->records)
- toget = global_parameters.toget - cl->records;
- if (toget > cl->hits - cl->records)
- toget = cl->hits - cl->records;
-
- yaz_log(YLOG_DEBUG, "Trying to present %d records\n", toget);
-
- a->u.presentRequest->resultSetStartPoint = &start;
- a->u.presentRequest->numberOfRecordsRequested = &toget;
-
- a->u.presentRequest->resultSetId = "Default";
-
- if ((recsyn = session_setting_oneval(sdb, PZ_REQUESTSYNTAX)))
- {
-#if YAZ_VERSIONL >= 0x020163
- a->u.presentRequest->preferredRecordSyntax =
- yaz_string_to_oid_odr(yaz_oid_std(),
- CLASS_RECSYN, recsyn,
- global_parameters.odr_out);
-#else
- a->u.presentRequest->preferredRecordSyntax =
- yaz_str_to_z3950oid(global_parameters.odr_out,
- CLASS_RECSYN, recsyn);
-#endif
- }
-
- if (send_apdu(cl, a) >= 0)
- {
- iochan_setflags(i, EVENT_INPUT);
- cl->state = Client_Presenting;
- }
- else
- cl->state = Client_Error;
- odr_reset(global_parameters.odr_out);
-}
-
-static void do_initResponse(IOCHAN i, Z_APDU *a)
-{
- struct connection *co = iochan_getdata(i);
- struct client *cl = co->client;
- Z_InitResponse *r = a->u.initResponse;
-
- yaz_log(YLOG_DEBUG, "Init response %s", cl->database->database->url);
-
- if (*r->result)
- {
- cl->state = Client_Idle;
- }
- else
- cl->state = Client_Failed; // FIXME need to do something to the connection
-}
-
-static void do_searchResponse(IOCHAN i, Z_APDU *a)
-{
- struct connection *co = iochan_getdata(i);
- struct client *cl = co->client;
- struct session *se = cl->session;
- Z_SearchResponse *r = a->u.searchResponse;
-
- yaz_log(YLOG_DEBUG, "Search response %s (status=%d)",
- cl->database->database->url, *r->searchStatus);
-
- if (*r->searchStatus)
- {
- cl->hits = *r->resultCount;
- se->total_hits += cl->hits;
- if (r->presentStatus && !*r->presentStatus && r->records)
- {
- yaz_log(YLOG_DEBUG, "Records in search response %s",
- cl->database->database->url);
- ingest_records(cl, r->records);
- }
- cl->state = Client_Idle;
- }
- else
- { /*"FAILED"*/
- cl->hits = 0;
- cl->state = Client_Error;
- if (r->records) {
- Z_Records *recs = r->records;
- if (recs->which == Z_Records_NSD)
- {
- yaz_log(YLOG_WARN,
- "Search response: Non-surrogate diagnostic %s",
- cl->database->database->url);
- cl->diagnostic = *recs->u.nonSurrogateDiagnostic->condition;
- cl->state = Client_Error;
- }
- }
- }
-}
-
-static void do_closeResponse(IOCHAN i, Z_APDU *a)
-{
- struct connection *co = iochan_getdata(i);
- struct client *cl = co->client;
- /* Z_Close *r = a->u.close; */
-
- yaz_log(YLOG_WARN, "Close response %s", cl->database->database->url);
-
- cl->state = Client_Failed;
- connection_destroy(co);
-}
-
-
-char *normalize_mergekey(char *buf, int skiparticle)
-{
- char *p = buf, *pout = buf;
-
- if (skiparticle)
- {
- char firstword[64];
- char articles[] = "the den der die des an a "; // must end in space
-
- while (*p && !isalnum(*p))
- p++;
- pout = firstword;
- while (*p && *p != ' ' && pout - firstword < 62)
- *(pout++) = tolower(*(p++));
- *(pout++) = ' ';
- *(pout++) = '\0';
- if (!strstr(articles, firstword))
- p = buf;
- pout = buf;
- }
-
- while (*p)
- {
- while (*p && !isalnum(*p))
- p++;
- while (isalnum(*p))
- *(pout++) = tolower(*(p++));
- if (*p)
- *(pout++) = ' ';
- while (*p && !isalnum(*p))
- p++;
- }
- if (buf != pout)
- do {
- *(pout--) = '\0';
- }
- while (pout > buf && *pout == ' ');
-
- return buf;
-}
-
-static void add_facet(struct session *s, const char *type, const char *value)
-{
- int i;
-
- if (!*value)
- return;
- for (i = 0; i < s->num_termlists; i++)
- if (!strcmp(s->termlists[i].name, type))
- break;
- if (i == s->num_termlists)
- {
- if (i == SESSION_MAX_TERMLISTS)
- {
- yaz_log(YLOG_FATAL, "Too many termlists");
- exit(1);
- }
- s->termlists[i].name = nmem_strdup(s->nmem, type);
- s->termlists[i].termlist = termlist_create(s->nmem, s->expected_maxrecs, 15);
- s->num_termlists = i + 1;
- }
- termlist_insert(s->termlists[i].termlist, value);
-}
-
-static xmlDoc *normalize_record(struct client *cl, Z_External *rec)
-{
- struct database_retrievalmap *m;
- struct database *db = cl->database->database;
- xmlNode *res;
- xmlDoc *rdoc;
-
- // First normalize to XML
- if (db->yaz_marc)
- {
- char *buf;
- int len;
- if (rec->which != Z_External_octet)
- {
- yaz_log(YLOG_WARN, "Unexpected external branch, probably BER %s",
- cl->database->database->url);
- return 0;
- }
- buf = (char*) rec->u.octet_aligned->buf;
- len = rec->u.octet_aligned->len;
- if (yaz_marc_read_iso2709(db->yaz_marc, buf, len) < 0)
- {
- yaz_log(YLOG_WARN, "Failed to decode MARC %s",
- cl->database->database->url);
- return 0;
- }
-
- yaz_marc_write_using_libxml2(db->yaz_marc, 1);
- if (yaz_marc_write_xml(db->yaz_marc, &res,
- "http://www.loc.gov/MARC21/slim", 0, 0) < 0)
- {
- yaz_log(YLOG_WARN, "Failed to encode as XML %s",
- cl->database->database->url);
- return 0;
- }
- rdoc = xmlNewDoc((xmlChar *) "1.0");
- xmlDocSetRootElement(rdoc, res);
-
- }
- else
- {
- yaz_log(YLOG_FATAL,
- "Unknown native_syntax in normalize_record from %s",
- cl->database->database->url);
- exit(1);
- }
-
- if (global_parameters.dump_records){
- fprintf(stderr,
- "Input Record (normalized) from %s\n----------------\n",
- cl->database->database->url);
-#if LIBXML_VERSION >= 20600
- xmlDocFormatDump(stderr, rdoc, 1);
-#else
- xmlDocDump(stderr, rdoc);
-#endif
- }
-
- for (m = db->map; m; m = m->next){
- xmlDoc *new = 0;
-
-#if 1
- {
- xmlNodePtr root = 0;
- new = xsltApplyStylesheet(m->stylesheet, rdoc, 0);
- root= xmlDocGetRootElement(new);
- if (!new || !root || !(root->children))
- {
- yaz_log(YLOG_WARN, "XSLT transformation failed from %s",
- cl->database->database->url);
- xmlFreeDoc(new);
- xmlFreeDoc(rdoc);
- return 0;
- }
- }
-#endif
-
-#if 0
- // do it another way to detect transformation errors right now
- // but does not seem to work either!
- {
- xsltTransformContextPtr ctxt;
- ctxt = xsltNewTransformContext(m->stylesheet, rdoc);
- new = xsltApplyStylesheetUser(m->stylesheet, rdoc, 0, 0, 0, ctxt);
- if ((ctxt->state == XSLT_STATE_ERROR) ||
- (ctxt->state == XSLT_STATE_STOPPED)){
- yaz_log(YLOG_WARN, "XSLT transformation failed from %s",
- cl->database->database->url);
- xmlFreeDoc(new);
- xmlFreeDoc(rdoc);
- return 0;
- }
- }
-#endif
-
- xmlFreeDoc(rdoc);
- rdoc = new;
- }
- if (global_parameters.dump_records)
- {
- fprintf(stderr, "Record from %s\n----------------\n",
- cl->database->database->url);
-#if LIBXML_VERSION >= 20600
- xmlDocFormatDump(stderr, rdoc, 1);
-#else
- xmlDocDump(stderr, rdoc);
-#endif
- }
- return rdoc;
-}
-
-// Extract what appears to be years from buf, storing highest and
-// lowest values.
-static int extract_years(const char *buf, int *first, int *last)
-{
- *first = -1;
- *last = -1;
- while (*buf)
- {
- const char *e;
- int len;
-
- while (*buf && !isdigit(*buf))
- buf++;
- len = 0;
- for (e = buf; *e && isdigit(*e); e++)
- len++;
- if (len == 4)
- {
- int value = atoi(buf);
- if (*first < 0 || value < *first)
- *first = value;
- if (*last < 0 || value > *last)
- *last = value;
- }
- buf = e;
- }
- return *first;
-}
-
-static struct record *ingest_record(struct client *cl, Z_External *rec)
-{
- xmlDoc *xdoc = normalize_record(cl, rec);
- xmlNode *root, *n;
- struct record *res;
- struct record_cluster *cluster;
- struct session *se = cl->session;
- xmlChar *mergekey, *mergekey_norm;
- xmlChar *type = 0;
- xmlChar *value = 0;
- struct conf_service *service = global_parameters.server->service;
-
- if (!xdoc)
- return 0;
-
- root = xmlDocGetRootElement(xdoc);
- if (!(mergekey = xmlGetProp(root, (xmlChar *) "mergekey")))
- {
- yaz_log(YLOG_WARN, "No mergekey found in record");
- xmlFreeDoc(xdoc);
- return 0;
- }
-
- res = nmem_malloc(se->nmem, sizeof(struct record));
- res->next = 0;
- res->client = cl;
- res->metadata = nmem_malloc(se->nmem,
- sizeof(struct record_metadata*) * service->num_metadata);
- memset(res->metadata, 0, sizeof(struct record_metadata*) * service->num_metadata);
-
- mergekey_norm = (xmlChar *) nmem_strdup(se->nmem, (char*) mergekey);
- xmlFree(mergekey);
- normalize_mergekey((char *) mergekey_norm, 0);
-
- cluster = reclist_insert(se->reclist, res, (char *) mergekey_norm,
- &se->total_merged);
- if (global_parameters.dump_records)
- yaz_log(YLOG_LOG, "Cluster id %d from %s (#%d)", cluster->recid,
- cl->database->database->url, cl->records);
- if (!cluster)
- {
- /* no room for record */
- xmlFreeDoc(xdoc);
- return 0;
- }
- relevance_newrec(se->relevance, cluster);
-
- for (n = root->children; n; n = n->next)
- {
- if (type)
- xmlFree(type);
- if (value)
- xmlFree(value);
- type = value = 0;
-
- if (n->type != XML_ELEMENT_NODE)
- continue;
- if (!strcmp((const char *) n->name, "metadata"))
- {
- struct conf_metadata *md = 0;
- struct conf_sortkey *sk = 0;
- struct record_metadata **wheretoput, *newm;
- int imeta;
- int first, last;
-
- type = xmlGetProp(n, (xmlChar *) "type");
- value = xmlNodeListGetString(xdoc, n->children, 0);
-
- if (!type || !value)
- continue;
-
- // First, find out what field we're looking at
- for (imeta = 0; imeta < service->num_metadata; imeta++)
- if (!strcmp((const char *) type, service->metadata[imeta].name))
- {
- md = &service->metadata[imeta];
- if (md->sortkey_offset >= 0)
- sk = &service->sortkeys[md->sortkey_offset];
- break;
- }
- if (!md)
- {
- yaz_log(YLOG_WARN, "Ignoring unknown metadata element: %s", type);
- continue;
- }
-
- // Find out where we are putting it
- if (md->merge == Metadata_merge_no)
- wheretoput = &res->metadata[imeta];
- else
- wheretoput = &cluster->metadata[imeta];
-
- // Put it there
- newm = nmem_malloc(se->nmem, sizeof(struct record_metadata));
- newm->next = 0;
- if (md->type == Metadata_type_generic)
- {
- char *p, *pe;
- for (p = (char *) value; *p && isspace(*p); p++)
- ;
- for (pe = p + strlen(p) - 1;
- pe > p && strchr(" ,/.:([", *pe); pe--)
- *pe = '\0';
- newm->data.text = nmem_strdup(se->nmem, p);
-
- }
- else if (md->type == Metadata_type_year)
- {
- if (extract_years((char *) value, &first, &last) < 0)
- continue;
- }
- else
- {
- yaz_log(YLOG_WARN, "Unknown type in metadata element %s", type);
- continue;
- }
- if (md->type == Metadata_type_year && md->merge != Metadata_merge_range)
- {
- yaz_log(YLOG_WARN, "Only range merging supported for years");
- continue;
- }
- if (md->merge == Metadata_merge_unique)
- {
- struct record_metadata *mnode;
- for (mnode = *wheretoput; mnode; mnode = mnode->next)
- if (!strcmp((const char *) mnode->data.text, newm->data.text))
- break;
- if (!mnode)
- {
- newm->next = *wheretoput;
- *wheretoput = newm;
- }
- }
- else if (md->merge == Metadata_merge_longest)
- {
- if (!*wheretoput ||
- strlen(newm->data.text) > strlen((*wheretoput)->data.text))
- {
- *wheretoput = newm;
- if (sk)
- {
- char *s = nmem_strdup(se->nmem, newm->data.text);
- if (!cluster->sortkeys[md->sortkey_offset])
- cluster->sortkeys[md->sortkey_offset] =
- nmem_malloc(se->nmem, sizeof(union data_types));
- normalize_mergekey(s,
- (sk->type == Metadata_sortkey_skiparticle));
- cluster->sortkeys[md->sortkey_offset]->text = s;
- }
- }
- }
- else if (md->merge == Metadata_merge_all || md->merge == Metadata_merge_no)
- {
- newm->next = *wheretoput;
- *wheretoput = newm;
- }
- else if (md->merge == Metadata_merge_range)
- {
- assert(md->type == Metadata_type_year);
- if (!*wheretoput)
- {
- *wheretoput = newm;
- (*wheretoput)->data.number.min = first;
- (*wheretoput)->data.number.max = last;
- if (sk)
- cluster->sortkeys[md->sortkey_offset] = &newm->data;
- }
- else
- {
- if (first < (*wheretoput)->data.number.min)
- (*wheretoput)->data.number.min = first;
- if (last > (*wheretoput)->data.number.max)
- (*wheretoput)->data.number.max = last;
- }
-#ifdef GAGA
- if (sk)
- {
- union data_types *sdata = cluster->sortkeys[md->sortkey_offset];
- yaz_log(YLOG_LOG, "SK range: %d-%d", sdata->number.min, sdata->number.max);
- }
-#endif
- }
- else
- yaz_log(YLOG_WARN, "Don't know how to merge on element name %s", md->name);
-
- if (md->rank)
- relevance_countwords(se->relevance, cluster,
- (char *) value, md->rank);
- if (md->termlist)
- {
- if (md->type == Metadata_type_year)
- {
- char year[64];
- sprintf(year, "%d", last);
- add_facet(se, (char *) type, year);
- if (first != last)
- {
- sprintf(year, "%d", first);
- add_facet(se, (char *) type, year);
- }
- }
- else
- add_facet(se, (char *) type, (char *) value);
- }
- xmlFree(type);
- xmlFree(value);
- type = value = 0;
- }
- else
- yaz_log(YLOG_WARN, "Unexpected element %s in internal record", n->name);
- }
- if (type)
- xmlFree(type);
- if (value)
- xmlFree(value);
-
- xmlFreeDoc(xdoc);
-
- relevance_donerecord(se->relevance, cluster);
- se->total_records++;
-
- return res;
-}
-
-// Retrieve first defined value for 'name' for given database.
-// Will be extended to take into account user associated with session
-char *session_setting_oneval(struct session_database *db, int offset)
-{
- if (!db->settings[offset])
- return "";
- return db->settings[offset]->value;
-}
-
-static void ingest_records(struct client *cl, Z_Records *r)
-{
-#if USE_TIMING
- yaz_timing_t t = yaz_timing_create();
-#endif
- struct record *rec;
- struct session *s = cl->session;
- Z_NamePlusRecordList *rlist;
- int i;
-
- if (r->which != Z_Records_DBOSD)
- return;
- rlist = r->u.databaseOrSurDiagnostics;
- for (i = 0; i < rlist->num_records; i++)
- {
- Z_NamePlusRecord *npr = rlist->records[i];
-
- cl->records++;
- if (npr->which != Z_NamePlusRecord_databaseRecord)
- {
- yaz_log(YLOG_WARN,
- "Unexpected record type, probably diagnostic %s",
- cl->database->database->url);
- continue;
- }
-
- rec = ingest_record(cl, npr->u.databaseRecord);
- if (!rec)
- continue;
- }
- if (s->watchlist[SESSION_WATCH_RECORDS].fun && rlist->num_records)
- session_alert_watch(s, SESSION_WATCH_RECORDS);
-
-#if USE_TIMING
- yaz_timing_stop(t);
- yaz_log(YLOG_LOG, "ingest_records %6.5f %3.2f %3.2f",
- yaz_timing_get_real(t), yaz_timing_get_user(t),
- yaz_timing_get_sys(t));
- yaz_timing_destroy(&t);
-#endif
-}
-
-static void do_presentResponse(IOCHAN i, Z_APDU *a)
-{
- struct connection *co = iochan_getdata(i);
- struct client *cl = co->client;
- Z_PresentResponse *r = a->u.presentResponse;
-
- if (r->records) {
- Z_Records *recs = r->records;
- if (recs->which == Z_Records_NSD)
- {
- yaz_log(YLOG_WARN, "Non-surrogate diagnostic %s",
- cl->database->database->url);
- cl->diagnostic = *recs->u.nonSurrogateDiagnostic->condition;
- cl->state = Client_Error;
- }
- }
-
- if (!*r->presentStatus && cl->state != Client_Error)
- {
- yaz_log(YLOG_DEBUG, "Good Present response %s",
- cl->database->database->url);
- ingest_records(cl, r->records);
- cl->state = Client_Idle;
- }
- else if (*r->presentStatus)
- {
- yaz_log(YLOG_WARN, "Bad Present response %s",
- cl->database->database->url);
- cl->state = Client_Error;
- }
-}
-
-static void handler(IOCHAN i, int event)
-{
- struct connection *co = iochan_getdata(i);
- struct client *cl = co->client;
- struct session *se = 0;
-
- if (cl)
- se = cl->session;
- else
- {
- yaz_log(YLOG_WARN, "Destroying orphan connection");
- connection_destroy(co);
- return;
- }
-
- if (co->state == Conn_Connecting && event & EVENT_OUTPUT)
- {
- int errcode;
- socklen_t errlen = sizeof(errcode);
-
- if (getsockopt(cs_fileno(co->link), SOL_SOCKET, SO_ERROR, &errcode,
- &errlen) < 0 || errcode != 0)
- {
- client_fatal(cl);
- return;
- }
- else
- {
- yaz_log(YLOG_DEBUG, "Connect OK");
- co->state = Conn_Open;
- if (cl)
- cl->state = Client_Connected;
- }
- }
-
- else if (event & EVENT_INPUT)
- {
- int len = cs_get(co->link, &co->ibuf, &co->ibufsize);
-
- if (len < 0)
- {
- yaz_log(YLOG_WARN|YLOG_ERRNO, "Error reading from %s",
- cl->database->database->url);
- connection_destroy(co);
- return;
- }
- else if (len == 0)
- {
- yaz_log(YLOG_WARN, "EOF reading from %s", cl->database->database->url);
- connection_destroy(co);
- return;
- }
- else if (len > 1) // We discard input if we have no connection
- {
- co->state = Conn_Open;
-
- if (cl && (cl->requestid == se->requestid || cl->state == Client_Initializing))
- {
- Z_APDU *a;
-
- odr_reset(global_parameters.odr_in);
- odr_setbuf(global_parameters.odr_in, co->ibuf, len, 0);
- if (!z_APDU(global_parameters.odr_in, &a, 0, 0))
- {
- client_fatal(cl);
- return;
- }
- switch (a->which)
- {
- case Z_APDU_initResponse:
- do_initResponse(i, a);
- break;
- case Z_APDU_searchResponse:
- do_searchResponse(i, a);
- break;
- case Z_APDU_presentResponse:
- do_presentResponse(i, a);
- break;
- case Z_APDU_close:
- do_closeResponse(i, a);
- break;
- default:
- yaz_log(YLOG_WARN,
- "Unexpected Z39.50 response from %s",
- cl->database->database->url);
- client_fatal(cl);
- return;
- }
- // We aren't expecting staggered output from target
- // if (cs_more(t->link))
- // iochan_setevent(i, EVENT_INPUT);
- }
- else // we throw away response and go to idle mode
- {
- yaz_log(YLOG_DEBUG, "Ignoring result of expired operation");
- cl->state = Client_Idle;
- }
- }
- /* if len==1 we do nothing but wait for more input */
- }
-
- if (cl->state == Client_Connected) {
- send_init(i);
- }
-
- if (cl->state == Client_Idle)
- {
- if (cl->requestid != se->requestid && *se->query) {
- send_search(i);
- }
- else if (cl->hits > 0 && cl->records < global_parameters.toget &&
- cl->records < cl->hits) {
- send_present(i);
- }
- }
-}
-
-// Disassociate connection from client
-static void connection_release(struct connection *co)
-{
- struct client *cl = co->client;
-
- yaz_log(YLOG_DEBUG, "Connection release %s", co->host->hostport);
- if (!cl)
- return;
- cl->connection = 0;
- co->client = 0;
-}
-
-// Close connection and recycle structure
-static void connection_destroy(struct connection *co)
-{
- struct host *h = co->host;
- cs_close(co->link);
- iochan_destroy(co->iochan);
-
- yaz_log(YLOG_DEBUG, "Connection destroy %s", co->host->hostport);
- if (h->connections == co)
- h->connections = co->next;
- else
- {
- struct connection *pco;
- for (pco = h->connections; pco && pco->next != co; pco = pco->next)
- ;
- if (pco)
- pco->next = co->next;
- else
- abort();
- }
- if (co->client)
- {
- if (co->client->state != Client_Idle)
- co->client->state = Client_Disconnected;
- co->client->connection = 0;
- }
- co->next = connection_freelist;
- connection_freelist = co;
-}
-
-// Creates a new connection for client, associated with the host of
-// client's database
-static struct connection *connection_create(struct client *cl)
-{
- struct connection *new;
- COMSTACK link;
- int res;
- void *addr;
-
-
- if (!(link = cs_create(tcpip_type, 0, PROTO_Z3950)))
- {
- yaz_log(YLOG_FATAL|YLOG_ERRNO, "Failed to create comstack");
- exit(1);
- }
-
- if (0 == strlen(global_parameters.zproxy_override)){
- /* no Z39.50 proxy needed - direct connect */
- yaz_log(YLOG_DEBUG, "Connection create %s", cl->database->database->url);
-
- if (!(addr = cs_straddr(link, cl->database->database->host->ipport)))
- {
- yaz_log(YLOG_WARN|YLOG_ERRNO,
- "Lookup of IP address %s failed",
- cl->database->database->host->ipport);
- return 0;
- }
-
- } else {
- /* Z39.50 proxy connect */
- yaz_log(YLOG_DEBUG, "Connection create %s proxy %s",
- cl->database->database->url, global_parameters.zproxy_override);
-
- if (!(addr = cs_straddr(link, global_parameters.zproxy_override)))
- {
- yaz_log(YLOG_WARN|YLOG_ERRNO,
- "Lookup of IP address %s failed",
- global_parameters.zproxy_override);
- return 0;
- }
- }
-
- res = cs_connect(link, addr);
- if (res < 0)
- {
- yaz_log(YLOG_WARN|YLOG_ERRNO, "cs_connect %s", cl->database->database->url);
- return 0;
- }
-
- if ((new = connection_freelist))
- connection_freelist = new->next;
- else
- {
- new = xmalloc(sizeof (struct connection));
- new->ibuf = 0;
- new->ibufsize = 0;
- }
- new->state = Conn_Connecting;
- new->host = cl->database->database->host;
- new->next = new->host->connections;
- new->host->connections = new;
- new->client = cl;
- cl->connection = new;
- new->link = link;
-
- new->iochan = iochan_create(cs_fileno(link), handler, 0);
- iochan_setdata(new->iochan, new);
- new->iochan->next = channel_list;
- channel_list = new->iochan;
- return new;
-}
-
-// Close connection and set state to error
-static void client_fatal(struct client *cl)
-{
- yaz_log(YLOG_WARN, "Fatal error from %s", cl->database->database->url);
- connection_destroy(cl->connection);
- cl->state = Client_Error;
-}
-
-// Ensure that client has a connection associated
-static int client_prep_connection(struct client *cl)
-{
- struct connection *co;
- struct session *se = cl->session;
- struct host *host = cl->database->database->host;
-
- co = cl->connection;
-
- yaz_log(YLOG_DEBUG, "Client prep %s", cl->database->database->url);
-
- if (!co)
- {
- // See if someone else has an idle connection
- // We should look at timestamps here to select the longest-idle connection
- for (co = host->connections; co; co = co->next)
- if (co->state == Conn_Open && (!co->client || co->client->session != se))
- break;
- if (co)
- {
- connection_release(co);
- cl->connection = co;
- co->client = cl;
- }
- else
- co = connection_create(cl);
- }
- if (co)
- {
- if (co->state == Conn_Connecting)
- {
- cl->state = Client_Connecting;
- iochan_setflag(co->iochan, EVENT_OUTPUT);
- }
- else if (co->state == Conn_Open)
- {
- if (cl->state == Client_Error || cl->state == Client_Disconnected)
- cl->state = Client_Idle;
- iochan_setflag(co->iochan, EVENT_OUTPUT);
- }
- return 1;
- }
- else
- return 0;
-}
-
-static struct client *client_create(void)
-{
- struct client *r;
- if (client_freelist)
- {
- r = client_freelist;
- client_freelist = client_freelist->next;
- }
- else
- r = xmalloc(sizeof(struct client));
- r->database = 0;
- r->connection = 0;
- r->session = 0;
- r->hits = 0;
- r->records = 0;
- r->setno = 0;
- r->requestid = -1;
- r->diagnostic = 0;
- r->state = Client_Disconnected;
- r->next = 0;
- return r;
-}
-
-void client_destroy(struct client *c)
-{
- struct session *se = c->session;
- if (c == se->clients)
- se->clients = c->next;
- else
- {
- struct client *cc;
- for (cc = se->clients; cc && cc->next != c; cc = cc->next)
- ;
- if (cc)
- cc->next = c->next;
- }
- if (c->connection)
- connection_release(c->connection);
- c->next = client_freelist;
- client_freelist = c;
-}
-
-void session_set_watch(struct session *s, int what, session_watchfun fun, void *data)
-{
- s->watchlist[what].fun = fun;
- s->watchlist[what].data = data;
-}
-
-void session_alert_watch(struct session *s, int what)
-{
- if (!s->watchlist[what].fun)
- return;
- (*s->watchlist[what].fun)(s->watchlist[what].data);
- s->watchlist[what].fun = 0;
- s->watchlist[what].data = 0;
-}
-
-//callback for grep_databases
-static void select_targets_callback(void *context, struct session_database *db)
-{
- struct session *se = (struct session*) context;
- struct client *cl = client_create();
- cl->database = db;
- cl->session = se;
- cl->next = se->clients;
- se->clients = cl;
-}
-
-// Associates a set of clients with a session;
-// Note: Session-databases represent databases with per-session setting overrides
-int select_targets(struct session *se, struct database_criterion *crit)
-{
- while (se->clients)
- client_destroy(se->clients);
-
- return session_grep_databases(se, crit, select_targets_callback);
-}
-
-int session_active_clients(struct session *s)
-{
- struct client *c;
- int res = 0;
-
- for (c = s->clients; c; c = c->next)
- if (c->connection && (c->state == Client_Connecting ||
- c->state == Client_Initializing ||
- c->state == Client_Searching ||
- c->state == Client_Presenting))
- res++;
-
- return res;
-}
-
-// parses crit1=val1,crit2=val2|val3,...
-static struct database_criterion *parse_filter(NMEM m, const char *buf)
-{
- struct database_criterion *res = 0;
- char **values;
- int num;
- int i;
-
- if (!buf || !*buf)
- return 0;
- nmem_strsplit(m, ",", buf, &values, &num);
- for (i = 0; i < num; i++)
- {
- char **subvalues;
- int subnum;
- int subi;
- struct database_criterion *new = nmem_malloc(m, sizeof(*new));
- char *eq = strchr(values[i], '=');
- if (!eq)
- {
- yaz_log(YLOG_WARN, "Missing equal-sign in filter");
- return 0;
- }
- *(eq++) = '\0';
- new->name = values[i];
- nmem_strsplit(m, "|", eq, &subvalues, &subnum);
- new->values = 0;
- for (subi = 0; subi < subnum; subi++)
- {
- struct database_criterion_value *newv = nmem_malloc(m, sizeof(*newv));
- newv->value = subvalues[subi];
- newv->next = new->values;
- new->values = newv;
- }
- new->next = res;
- res = new;
- }
- return res;
-}
-
-char *search(struct session *se, char *query, char *filter)
-{
- int live_channels = 0;
- struct client *cl;
- struct database_criterion *criteria;
-
- yaz_log(YLOG_DEBUG, "Search");
-
- nmem_reset(se->nmem);
- criteria = parse_filter(se->nmem, filter);
- strcpy(se->query, query);
- se->requestid++;
- select_targets(se, criteria);
- for (cl = se->clients; cl; cl = cl->next)
- {
- if (client_prep_connection(cl))
- live_channels++;
- }
- if (live_channels)
- {
- int maxrecs = live_channels * global_parameters.toget;
- se->num_termlists = 0;
- se->reclist = reclist_create(se->nmem, maxrecs);
- // This will be initialized in send_search()
- se->relevance = 0;
- se->total_records = se->total_hits = se->total_merged = 0;
- se->expected_maxrecs = maxrecs;
- }
- else
- return "NOTARGETS";
-
- return 0;
-}
-
-// Apply a session override to a database
-void session_apply_setting(struct session *se, char *dbname, char *setting, char *value)
-{
- struct session_database *sdb;
-
- for (sdb = se->databases; sdb; sdb = sdb->next)
- if (!strcmp(dbname, sdb->database->url))
- {
- struct setting *new = nmem_malloc(se->session_nmem, sizeof(*new));
- int offset = settings_offset(setting);
-
- if (offset < 0)
- {
- yaz_log(YLOG_WARN, "Unknown setting %s", setting);
- return;
- }
- new->precedence = 0;
- new->target = dbname;
- new->name = setting;
- new->value = value;
- new->next = sdb->settings[offset];
- sdb->settings[offset] = new;
- break;
- }
- if (!sdb)
- yaz_log(YLOG_WARN, "Unknown database in setting override: %s", dbname);
-}
-
-void session_init_databases_fun(void *context, struct database *db)
-{
- struct session *se = (struct session *) context;
- struct session_database *new = nmem_malloc(se->session_nmem, sizeof(*new));
- int num = settings_num();
- int i;
-
- new->database = db;
- new->settings = nmem_malloc(se->session_nmem, sizeof(struct settings *) * num);
- for (i = 0; i < num; i++)
- new->settings[i] = db->settings[i];
- new->next = se->databases;
- se->databases = new;
-}
-
-// Initialize session_database list -- this represents this session's view
-// of the database list -- subject to modification by the settings ws command
-void session_init_databases(struct session *se)
-{
- se->databases = 0;
- grep_databases(se, 0, session_init_databases_fun);
-}
-
-void destroy_session(struct session *s)
-{
- yaz_log(YLOG_LOG, "Destroying session");
- while (s->clients)
- client_destroy(s->clients);
- nmem_destroy(s->nmem);
- wrbuf_destroy(s->wrbuf);
-}
-
-struct session *new_session(NMEM nmem)
-{
- int i;
- struct session *session = nmem_malloc(nmem, sizeof(*session));
-
- yaz_log(YLOG_DEBUG, "New Pazpar2 session");
-
- session->total_hits = 0;
- session->total_records = 0;
- session->num_termlists = 0;
- session->reclist = 0;
- session->requestid = -1;
- session->clients = 0;
- session->expected_maxrecs = 0;
- session->query[0] = '\0';
- session->session_nmem = nmem;
- session->nmem = nmem_create();
- session->wrbuf = wrbuf_alloc();
- session_init_databases(session);
- for (i = 0; i <= SESSION_WATCH_MAX; i++)
- {
- session->watchlist[i].data = 0;
- session->watchlist[i].fun = 0;
- }
-
- return session;
-}
-
-struct hitsbytarget *hitsbytarget(struct session *se, int *count)
-{
- static struct hitsbytarget res[1000]; // FIXME MM
- struct client *cl;
-
- *count = 0;
- for (cl = se->clients; cl; cl = cl->next)
- {
- char *name = session_setting_oneval(cl->database, PZ_NAME);
-
- res[*count].id = cl->database->database->url;
- res[*count].name = *name ? name : "Unknown";
- res[*count].hits = cl->hits;
- res[*count].records = cl->records;
- res[*count].diagnostic = cl->diagnostic;
- res[*count].state = client_states[cl->state];
- res[*count].connected = cl->connection ? 1 : 0;
- (*count)++;
- }
-
- return res;
-}
-
-struct termlist_score **termlist(struct session *s, const char *name, int *num)
-{
- int i;
-
- for (i = 0; i < s->num_termlists; i++)
- if (!strcmp((const char *) s->termlists[i].name, name))
- return termlist_highscore(s->termlists[i].termlist, num);
- return 0;
-}
-
-#ifdef MISSING_HEADERS
-void report_nmem_stats(void)
-{
- size_t in_use, is_free;
-
- nmem_get_memory_in_use(&in_use);
- nmem_get_memory_free(&is_free);
-
- yaz_log(YLOG_LOG, "nmem stat: use=%ld free=%ld",
- (long) in_use, (long) is_free);
-}
-#endif
-
-struct record_cluster *show_single(struct session *s, int id)
-{
- struct record_cluster *r;
-
- reclist_rewind(s->reclist);
- while ((r = reclist_read_record(s->reclist)))
- if (r->recid == id)
- return r;
- return 0;
-}
-
-struct record_cluster **show(struct session *s, struct reclist_sortparms *sp, int start,
- int *num, int *total, int *sumhits, NMEM nmem_show)
-{
- struct record_cluster **recs = nmem_malloc(nmem_show, *num
- * sizeof(struct record_cluster *));
- struct reclist_sortparms *spp;
- int i;
-#if USE_TIMING
- yaz_timing_t t = yaz_timing_create();
-#endif
-
- for (spp = sp; spp; spp = spp->next)
- if (spp->type == Metadata_sortkey_relevance)
- {
- relevance_prepare_read(s->relevance, s->reclist);
- break;
- }
- reclist_sort(s->reclist, sp);
-
- *total = s->reclist->num_records;
- *sumhits = s->total_hits;
-
- for (i = 0; i < start; i++)
- if (!reclist_read_record(s->reclist))
- {
- *num = 0;
- recs = 0;
- break;
- }
-
- for (i = 0; i < *num; i++)
- {
- struct record_cluster *r = reclist_read_record(s->reclist);
- if (!r)
- {
- *num = i;
- break;
- }
- recs[i] = r;
- }
-#if USE_TIMING
- yaz_timing_stop(t);
- yaz_log(YLOG_LOG, "show %6.5f %3.2f %3.2f",
- yaz_timing_get_real(t), yaz_timing_get_user(t),
- yaz_timing_get_sys(t));
- yaz_timing_destroy(&t);
-#endif
- return recs;
-}
-
-void statistics(struct session *se, struct statistics *stat)
-{
- struct client *cl;
- int count = 0;
-
- memset(stat, 0, sizeof(*stat));
- for (cl = se->clients; cl; cl = cl->next)
- {
- if (!cl->connection)
- stat->num_no_connection++;
- switch (cl->state)
- {
- case Client_Connecting: stat->num_connecting++; break;
- case Client_Initializing: stat->num_initializing++; break;
- case Client_Searching: stat->num_searching++; break;
- case Client_Presenting: stat->num_presenting++; break;
- case Client_Idle: stat->num_idle++; break;
- case Client_Failed: stat->num_failed++; break;
- case Client_Error: stat->num_error++; break;
- default: break;
- }
- count++;
- }
- stat->num_hits = se->total_hits;
- stat->num_records = se->total_records;
-
- stat->num_clients = count;
-}
-
-static void start_http_listener(void)
-{
- char hp[128] = "";
- struct conf_server *ser = global_parameters.server;
-
- if (*global_parameters.listener_override)
- strcpy(hp, global_parameters.listener_override);
- else
- {
- strcpy(hp, ser->host ? ser->host : "");
- if (ser->port)
- {
- if (*hp)
- strcat(hp, ":");
- sprintf(hp + strlen(hp), "%d", ser->port);
- }
- }
- http_init(hp);
-}
-
-static void start_proxy(void)
-{
- char hp[128] = "";
- struct conf_server *ser = global_parameters.server;
-
- if (*global_parameters.proxy_override)
- strcpy(hp, global_parameters.proxy_override);
- else if (ser->proxy_host || ser->proxy_port)
- {
- strcpy(hp, ser->proxy_host ? ser->proxy_host : "");
- if (ser->proxy_port)
- {
- if (*hp)
- strcat(hp, ":");
- sprintf(hp + strlen(hp), "%d", ser->proxy_port);
- }
- }
- else
- return;
-
- http_set_proxyaddr(hp, ser->myurl ? ser->myurl : "");
-}
-
-static void start_zproxy(void)
-{
- struct conf_server *ser = global_parameters.server;
-
- if (*global_parameters.zproxy_override){
- yaz_log(YLOG_LOG, "Z39.50 proxy %s",
- global_parameters.zproxy_override);
- return;
- }
-
- else if (ser->zproxy_host || ser->zproxy_port)
- {
- char hp[128] = "";
-
- strcpy(hp, ser->zproxy_host ? ser->zproxy_host : "");
- if (ser->zproxy_port)
- {
- if (*hp)
- strcat(hp, ":");
- else
- strcat(hp, "@:");
-
- sprintf(hp + strlen(hp), "%d", ser->zproxy_port);
- }
- strcpy(global_parameters.zproxy_override, hp);
- yaz_log(YLOG_LOG, "Z39.50 proxy %s",
- global_parameters.zproxy_override);
-
- }
- else
- return;
-}
-
-
-
int main(int argc, char **argv)
{
int ret;
-/* $Id: pazpar2.h,v 1.23 2007-04-11 18:42:25 quinn Exp $
+/* $Id: pazpar2.h,v 1.24 2007-04-16 09:03:25 adam Exp $
Copyright (c) 2006-2007, Index Data.
This file is part of Pazpar2.
void session_apply_setting(struct session *se, char *dbname, char *setting, char *value);
char *session_setting_oneval(struct session_database *db, int offset);
+void start_http_listener(void);
+void start_proxy(void);
+void start_zproxy(void);
+
+extern struct parameters global_parameters;
+extern IOCHAN channel_list;
+
#endif
/*
projects / pazpar2-moved-to-github.git / commitdiff