-/* $Id: pazpar2.c,v 1.66 2007-04-08 22:38:45 quinn Exp $ */
+/* $Id: pazpar2.c,v 1.71 2007-04-11 02:14:15 quinn 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>
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);
-char *session_setting_oneval(struct session *s, struct database *db, int offset);
+char *session_setting_oneval(struct session_database *db, int offset);
IOCHAN channel_list = 0; // Master list of connections we're handling events to
// TODO: Extend this to handle other schemes than open (should be simple)
static void init_authentication(struct client *cl, Z_InitRequest *req)
{
- struct database *db = cl->database;
- struct session *se = cl->session;
- char *auth = session_setting_oneval(se, db, PZ_AUTHENTICATION);
+ struct session_database *sdb = cl->database;
+ char *auth = session_setting_oneval(sdb, PZ_AUTHENTICATION);
if (auth)
{
/* add virtual host if tunneling through Z39.50 proxy */
if (0 < strlen(global_parameters.zproxy_override)
- && 0 < strlen(cl->database->url))
+ && 0 < strlen(cl->database->database->url))
yaz_oi_set_string_oidval(&a->u.initRequest->otherInfo,
global_parameters.odr_out, VAL_PROXY,
- 1, cl->database->url);
+ 1, cl->database->database->url);
if (send_apdu(cl, a) >= 0)
{
struct connection *co = iochan_getdata(i);
struct client *cl = co->client;
struct session *se = cl->session;
- struct database *db = cl->database;
+ struct session_database *sdb = cl->database;
Z_APDU *a = zget_APDU(global_parameters.odr_out, Z_APDU_searchRequest);
int ndb, cerror, cpos;
char **databaselist;
yaz_log(YLOG_DEBUG, "Sending search");
- cn = ccl_find_str(db->ccl_map, se->query, &cerror, &cpos);
+ cn = ccl_find_str(sdb->database->ccl_map, se->query, &cerror, &cpos);
if (!cn)
return;
zquery->u.type_1 = ccl_rpn_query(global_parameters.odr_out, cn);
ccl_rpn_delete(cn);
- for (ndb = 0; db->databases[ndb]; ndb++)
+ for (ndb = 0; sdb->database->databases[ndb]; ndb++)
;
databaselist = odr_malloc(global_parameters.odr_out, sizeof(char*) * ndb);
- for (ndb = 0; db->databases[ndb]; ndb++)
- databaselist[ndb] = db->databases[ndb];
+ for (ndb = 0; sdb->database->databases[ndb]; ndb++)
+ databaselist[ndb] = sdb->database->databases[ndb];
- if (!(piggyback = session_setting_oneval(se, db, PZ_PIGGYBACK)) || *piggyback == '1')
+ if (!(piggyback = session_setting_oneval(sdb, PZ_PIGGYBACK)) || *piggyback == '1')
{
- if ((recsyn = session_setting_oneval(se, db, PZ_NATIVESYNTAX)))
+ if ((recsyn = session_setting_oneval(sdb, PZ_REQUESTSYNTAX)))
a->u.searchRequest->preferredRecordSyntax =
yaz_str_to_z3950oid(global_parameters.odr_out,
CLASS_RECSYN, recsyn);
{
struct connection *co = iochan_getdata(i);
struct client *cl = co->client;
- struct session *se = cl->session;
- struct database *db = cl->database;
+ 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;
a->u.presentRequest->resultSetId = "Default";
- if ((recsyn = session_setting_oneval(se, db, PZ_NATIVESYNTAX)))
+ if ((recsyn = session_setting_oneval(sdb, PZ_REQUESTSYNTAX)))
a->u.presentRequest->preferredRecordSyntax =
yaz_str_to_z3950oid(global_parameters.odr_out,
CLASS_RECSYN, recsyn);
struct client *cl = co->client;
Z_InitResponse *r = a->u.initResponse;
- yaz_log(YLOG_DEBUG, "Init response %s", cl->database->url);
+ yaz_log(YLOG_DEBUG, "Init response %s", cl->database->database->url);
if (*r->result)
{
Z_SearchResponse *r = a->u.searchResponse;
yaz_log(YLOG_DEBUG, "Search response %s (status=%d)",
- cl->database->url, *r->searchStatus);
+ cl->database->database->url, *r->searchStatus);
if (*r->searchStatus)
{
if (r->presentStatus && !*r->presentStatus && r->records)
{
yaz_log(YLOG_DEBUG, "Records in search response %s",
- cl->database->url);
+ cl->database->database->url);
ingest_records(cl, r->records);
}
cl->state = Client_Idle;
{
yaz_log(YLOG_WARN,
"Search response: Non-surrogate diagnostic %s",
- cl->database->url);
+ cl->database->database->url);
cl->diagnostic = *recs->u.nonSurrogateDiagnostic->condition;
cl->state = Client_Error;
}
struct client *cl = co->client;
/* Z_Close *r = a->u.close; */
- yaz_log(YLOG_WARN, "Close response %s", cl->database->url);
+ yaz_log(YLOG_WARN, "Close response %s", cl->database->database->url);
cl->state = Client_Failed;
connection_destroy(co);
static xmlDoc *normalize_record(struct client *cl, Z_External *rec)
{
struct database_retrievalmap *m;
- struct database *db = cl->database;
+ struct database *db = cl->database->database;
xmlNode *res;
xmlDoc *rdoc;
if (rec->which != Z_External_octet)
{
yaz_log(YLOG_WARN, "Unexpected external branch, probably BER %s",
- cl->database->url);
+ cl->database->database->url);
return 0;
}
buf = (char*) rec->u.octet_aligned->buf;
if (yaz_marc_read_iso2709(db->yaz_marc, buf, len) < 0)
{
yaz_log(YLOG_WARN, "Failed to decode MARC %s",
- cl->database->url);
+ cl->database->database->url);
return 0;
}
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->url);
+ cl->database->database->url);
return 0;
}
rdoc = xmlNewDoc((xmlChar *) "1.0");
&se->total_merged);
if (global_parameters.dump_records)
yaz_log(YLOG_LOG, "Cluster id %d from %s (#%d)", cluster->recid,
- cl->database->url, cl->records);
+ cl->database->database->url, cl->records);
if (!cluster)
{
/* no room for record */
// 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 *s, struct database *db, int offset)
+char *session_setting_oneval(struct session_database *db, int offset)
{
if (!db->settings[offset])
return 0;
{
yaz_log(YLOG_WARN,
"Unexpected record type, probably diagnostic %s",
- cl->database->url);
+ cl->database->database->url);
continue;
}
if (recs->which == Z_Records_NSD)
{
yaz_log(YLOG_WARN, "Non-surrogate diagnostic %s",
- cl->database->url);
+ 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->url);
+ 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->url);
+ cl->database->database->url);
cl->state = Client_Error;
}
}
if (len < 0)
{
yaz_log(YLOG_WARN|YLOG_ERRNO, "Error reading from %s",
- cl->database->url);
+ cl->database->database->url);
connection_destroy(co);
return;
}
else if (len == 0)
{
- yaz_log(YLOG_WARN, "EOF reading from %s", cl->database->url);
+ yaz_log(YLOG_WARN, "EOF reading from %s", cl->database->database->url);
connection_destroy(co);
return;
}
default:
yaz_log(YLOG_WARN,
"Unexpected Z39.50 response from %s",
- cl->database->url);
+ cl->database->database->url);
client_fatal(cl);
return;
}
if (0 == strlen(global_parameters.zproxy_override)){
/* no Z39.50 proxy needed - direct connect */
- yaz_log(YLOG_DEBUG, "Connection create %s", cl->database->url);
+ yaz_log(YLOG_DEBUG, "Connection create %s", cl->database->database->url);
- if (!(addr = cs_straddr(link, cl->database->host->ipport)))
+ if (!(addr = cs_straddr(link, cl->database->database->host->ipport)))
{
yaz_log(YLOG_WARN|YLOG_ERRNO,
"Lookup of IP address %s failed",
- cl->database->host->ipport);
+ cl->database->database->host->ipport);
return 0;
}
} else {
/* Z39.50 proxy connect */
yaz_log(YLOG_DEBUG, "Connection create %s proxy %s",
- cl->database->url, global_parameters.zproxy_override);
+ cl->database->database->url, global_parameters.zproxy_override);
if (!(addr = cs_straddr(link, global_parameters.zproxy_override)))
{
res = cs_connect(link, addr);
if (res < 0)
{
- yaz_log(YLOG_WARN|YLOG_ERRNO, "cs_connect %s", cl->database->url);
+ yaz_log(YLOG_WARN|YLOG_ERRNO, "cs_connect %s", cl->database->database->url);
return 0;
}
new->ibufsize = 0;
}
new->state = Conn_Connecting;
- new->host = cl->database->host;
+ 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), 0, handler, 0);
+ new->iochan = iochan_create(cs_fileno(link), handler, 0);
iochan_setdata(new->iochan, new);
new->iochan->next = channel_list;
channel_list = new->iochan;
// Close connection and set state to error
static void client_fatal(struct client *cl)
{
- yaz_log(YLOG_WARN, "Fatal error from %s", cl->database->url);
+ yaz_log(YLOG_WARN, "Fatal error from %s", cl->database->database->url);
connection_destroy(cl->connection);
cl->state = Client_Error;
}
{
struct connection *co;
struct session *se = cl->session;
- struct host *host = cl->database->host;
+ struct host *host = cl->database->database->host;
co = cl->connection;
- yaz_log(YLOG_DEBUG, "Client prep %s", cl->database->url);
+ yaz_log(YLOG_DEBUG, "Client prep %s", cl->database->database->url);
if (!co)
{
}
//callback for grep_databases
-static void select_targets_callback(void *context, struct database *db)
+static void select_targets_callback(void *context, struct session_database *db)
{
struct session *se = (struct session*) context;
struct client *cl = client_create();
se->clients = cl;
}
-// This should be extended with parameters to control selection criteria
// 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 grep_databases(se, crit, select_targets_callback);
+ return session_grep_databases(se, crit, select_targets_callback);
}
int session_active_clients(struct session *s)
criteria = parse_filter(se->nmem, filter);
strcpy(se->query, query);
se->requestid++;
- // Release any existing clients
select_targets(se, criteria);
for (cl = se->clients; cl; cl = cl->next)
{
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->user = "";
+ 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)
+{
+ grep_databases(se, 0, session_init_databases_fun);
+}
+
void destroy_session(struct session *s)
{
yaz_log(YLOG_LOG, "Destroying session");
wrbuf_destroy(s->wrbuf);
}
-struct session *new_session()
+struct session *new_session(NMEM nmem)
{
int i;
- struct session *session = xmalloc(sizeof(*session));
+ struct session *session = nmem_malloc(nmem, sizeof(*session));
- yaz_log(YLOG_DEBUG, "New pazpar2 session");
+ yaz_log(YLOG_DEBUG, "New Pazpar2 session");
session->total_hits = 0;
session->total_records = 0;
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;
*count = 0;
for (cl = se->clients; cl; cl = cl->next)
{
- res[*count].id = cl->database->url;
- res[*count].name = cl->database->name;
+ res[*count].id = cl->database->database->url;
+ res[*count].name = cl->database->database->name;
res[*count].hits = cl->hits;
res[*count].records = cl->records;
res[*count].diagnostic = cl->diagnostic;
projects / pazpar2-moved-to-github.git / blobdiff