-/* $Id: database.c,v 1.1 2007-03-15 16:55:34 quinn Exp $ */
+/* $Id: database.c,v 1.27 2007-05-18 19:52:52 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 <libxml/parser.h>
#include <libxml/tree.h>
#include <libxslt/transform.h>
#include <libxslt/xsltutils.h>
#include <assert.h>
+#include <sys/types.h>
+#include <sys/stat.h>
#include "pazpar2.h"
+#include "host.h"
#include "config.h"
+#include "settings.h"
#include "http.h"
#include "zeerex.h"
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netdb.h>
+#include <netinet/in.h>
+
static struct host *hosts = 0; // The hosts we know about
static struct database *databases = 0; // The databases we know about
static NMEM nmem = 0;
-// This needs to be extended with selection criteria
-static struct conf_retrievalprofile *database_retrievalprofile(const char *id)
-{
- if (!config)
- {
- yaz_log(YLOG_FATAL, "Must load configuration (-f)");
- exit(1);
- }
- if (!config->retrievalprofiles)
- {
- yaz_log(YLOG_FATAL, "No retrieval profiles defined");
- }
- return config->retrievalprofiles;
-}
-
-static struct conf_queryprofile *database_queryprofile(const char *id)
-{
- return (struct conf_queryprofile*) 1;
-}
-
static xmlDoc *get_explain_xml(const char *id)
{
+ struct stat st;
char *dir;
char path[256];
char ide[256];
dir = config->targetprofiles->src;
urlencode(id, ide);
sprintf(path, "%s/%s", dir, ide);
- yaz_log(YLOG_LOG, "Path: %s", path);
- return xmlParseFile(path);
+ if (!stat(path, &st))
+ return xmlParseFile(path);
+ else
+ return 0;
}
// Create a new host structure for hostport
static struct host *create_host(const char *hostport)
{
- struct addrinfo *addrinfo, hints;
struct host *host;
- char *port;
- char ipport[128];
- unsigned char addrbuf[4];
- int res;
host = xmalloc(sizeof(struct host));
host->hostport = xstrdup(hostport);
host->connections = 0;
+ host->ipport = 0;
- if ((port = strchr(hostport, ':')))
- *(port++) = '\0';
- else
- port = "210";
-
- hints.ai_flags = 0;
- hints.ai_family = PF_INET;
- hints.ai_socktype = SOCK_STREAM;
- hints.ai_protocol = IPPROTO_TCP;
- hints.ai_addrlen = 0;
- hints.ai_addr = 0;
- hints.ai_canonname = 0;
- hints.ai_next = 0;
- // This is not robust code. It assumes that getaddrinfo always
- // returns AF_INET address.
- if ((res = getaddrinfo(hostport, port, &hints, &addrinfo)))
+ if (host_getaddrinfo(host))
{
- yaz_log(YLOG_WARN, "Failed to resolve %s: %s", hostport, gai_strerror(res));
xfree(host->hostport);
xfree(host);
return 0;
}
- assert(addrinfo->ai_family == PF_INET);
- memcpy(addrbuf, &((struct sockaddr_in*)addrinfo->ai_addr)->sin_addr.s_addr, 4);
- sprintf(ipport, "%u.%u.%u.%u:%s",
- addrbuf[0], addrbuf[1], addrbuf[2], addrbuf[3], port);
- host->ipport = xstrdup(ipport);
- freeaddrinfo(addrinfo);
host->next = hosts;
hosts = host;
return host;
static struct database *load_database(const char *id)
{
- xmlDoc *doc = get_explain_xml(id);
- struct zr_explain *explain;
- struct conf_retrievalprofile *retrieval;
- struct conf_queryprofile *query;
+ xmlDoc *doc = 0;
+ struct zr_explain *explain = 0;
struct database *db;
struct host *host;
char hostport[256];
char *dbname;
+ struct setting *idset;
+ yaz_log(YLOG_LOG, "New database: %s", id);
if (!nmem)
nmem = nmem_create();
- if (doc)
+
+ if (config && config->targetprofiles
+ && (doc = get_explain_xml(id)))
{
explain = zr_read_xml(nmem, xmlDocGetRootElement(doc));
if (!explain)
return 0;
}
- if (!(retrieval = database_retrievalprofile(id)) ||
- !(query = database_queryprofile(id)))
- {
- xmlFree(doc);
- return 0;
- }
+
if (strlen(id) > 255)
return 0;
strcpy(hostport, id);
memset(db, 0, sizeof(*db));
db->host = host;
db->url = nmem_strdup(nmem, id);
- db->name = dbname;
db->databases = xmalloc(2 * sizeof(char *));
db->databases[0] = nmem_strdup(nmem, dbname);
db->databases[1] = 0;
db->errors = 0;
db->explain = explain;
- db->qprofile = query;
- db->rprofile = retrieval;
+
+ db->settings = 0;
+
+ db->settings = nmem_malloc(nmem, sizeof(struct settings*) * settings_num());
+ memset(db->settings, 0, sizeof(struct settings*) * settings_num());
+ idset = nmem_malloc(nmem, sizeof(*id));
+ idset->precedence = 0;
+ idset->name = "pz:id";
+ idset->target = idset->value = db->url;
+ idset->next = 0;
+ db->settings[PZ_ID] = idset;
+
db->next = databases;
databases = db;
return load_database(id);
}
-// Needs to be extended with criteria
-// Cycles through databases, calling a handler function on each.
-int grep_databases(void *context, void (*fun)(void *context, struct database *db))
-{
- struct database *p;
- int i;
+// This whole session_grep database thing should be moved elsewhere
- for (p = databases; p; p = p->next)
+int match_zurl(const char *zurl, const char *pattern)
+{
+ if (!strcmp(pattern, "*"))
+ return 1;
+ else if (!strncmp(pattern, "*/", 2))
{
- (*fun)(context, p);
- i++;
+ char *db = strchr(zurl, '/');
+ if (!db)
+ return 0;
+ if (!strcmp(pattern + 2, db))
+ return 1;
+ else
+ return 0;
}
- return i;
+ else if (!strcmp(pattern, zurl))
+ return 1;
+ else
+ return 0;
}
-// This function will most likely vanish when a proper target profile mechanism is
-// introduced.
-void load_simpletargets(const char *fn)
+// This will be generalized at some point
+static int match_criterion(struct setting **settings, struct database_criterion *c)
{
- FILE *f = fopen(fn, "r");
- char line[256];
+ int offset = settings_offset(c->name);
+ struct database_criterion_value *v;
- if (!f)
+ if (offset < 0)
{
- yaz_log(YLOG_WARN|YLOG_ERRNO, "open %s", fn);
- exit(1);
+ yaz_log(YLOG_WARN, "Criterion not found: %s", c->name);
+ return 0;
}
-
- while (fgets(line, 255, f))
+ if (!settings[offset])
+ return 0;
+ for (v = c->values; v; v = v->next)
{
- char *url;
- char *name;
-
- if (strncmp(line, "target ", 7))
- continue;
- line[strlen(line) - 1] = '\0';
+ if (offset == PZ_ID)
+ {
+ if (match_zurl(settings[offset]->value, v->value))
+ break;
+ }
+ else
+ {
+ if (!strcmp(settings[offset]->value, v->value))
+ break;
+ }
+ }
+ if (v)
+ return 1;
+ else
+ return 0;
+}
- if ((name = strchr(line, ';')))
- *(name++) = '\0';
+int database_match_criteria(struct setting **settings, struct database_criterion *cl)
+{
+ for (; cl; cl = cl->next)
+ if (!match_criterion(settings, cl))
+ break;
+ if (cl) // one of the criteria failed to match -- skip this db
+ return 0;
+ else
+ return 1;
+}
- url = line + 7;
+// Cycles through databases, calling a handler function on the ones for
+// which all criteria matched.
+int session_grep_databases(struct session *se, struct database_criterion *cl,
+ void (*fun)(void *context, struct session_database *db))
+{
+ struct session_database *p;
+ int i = 0;
- if (!find_database(url, 0))
- yaz_log(YLOG_WARN, "Unable to load database %s", url);
+ for (p = se->databases; p; p = p->next)
+ {
+ if (p->settings && p->settings[PZ_ALLOW] && *p->settings[PZ_ALLOW]->value == '0')
+ continue;
+ if (!p->settings[PZ_NAME])
+ continue;
+ if (database_match_criteria(p->settings, cl))
+ {
+ (*fun)(se, p);
+ i++;
+ }
}
- fclose(f);
+ return i;
}
+int grep_databases(void *context, struct database_criterion *cl,
+ void (*fun)(void *context, struct database *db))
+{
+ struct database *p;
+ int i = 0;
+
+ for (p = databases; p; p = p->next)
+ if (database_match_criteria(p->settings, cl))
+ {
+ (*fun)(context, p);
+ i++;
+ }
+ return i;
+}
/*
* Local variables:
projects / pazpar2-moved-to-github.git / blobdiff