-/* $Id: config.c,v 1.1 2006-12-27 02:14:27 quinn Exp $ */
+/* This file is part of Pazpar2.
+ Copyright (C) 2006-2008 Index Data
+
+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 this program; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+*/
+
+/* $Id: config.c,v 1.42 2007-10-31 05:29:08 quinn Exp $ */
+
+#include <string.h>
+
+#include <libxml/parser.h>
+#include <libxml/tree.h>
+#include <libxslt/xslt.h>
+#include <libxslt/transform.h>
+#include <libxslt/xsltutils.h>
+
+#if HAVE_CONFIG_H
+#include <cconfig.h>
+#endif
+
+#include <yaz/yaz-util.h>
+#include <yaz/nmem.h>
+#include <yaz/snprintf.h>
+
+#define CONFIG_NOEXTERNS
+#include "config.h"
+
+
+static NMEM nmem = 0;
+static char confdir[256] = ".";
+
+struct conf_config *config = 0;
+
+
+struct conf_metadata * conf_metadata_assign(NMEM nmem,
+ struct conf_metadata * metadata,
+ const char *name,
+ enum conf_metadata_type type,
+ enum conf_metadata_merge merge,
+ enum conf_setting_type setting,
+ int brief,
+ int termlist,
+ int rank,
+ int sortkey_offset)
+{
+ if (!nmem || !metadata || !name)
+ return 0;
+
+ metadata->name = nmem_strdup(nmem, name);
+
+ metadata->type = type;
+
+ // enforcing that type_year is always range_merge
+ if (metadata->type == Metadata_type_year)
+ metadata->merge = Metadata_merge_range;
+ else
+ metadata->merge = merge;
+
+ metadata->setting = setting;
+ metadata->brief = brief;
+ metadata->termlist = termlist;
+ metadata->rank = rank;
+ metadata->sortkey_offset = sortkey_offset;
+ return metadata;
+}
+
+
+struct conf_sortkey * conf_sortkey_assign(NMEM nmem,
+ struct conf_sortkey * sortkey,
+ const char *name,
+ enum conf_sortkey_type type)
+{
+ if (!nmem || !sortkey || !name)
+ return 0;
+
+ sortkey->name = nmem_strdup(nmem, name);
+ sortkey->type = type;
+
+ return sortkey;
+}
+
+
+struct conf_service * conf_service_create(NMEM nmem,
+ int num_metadata, int num_sortkeys)
+{
+ struct conf_service * service = 0;
+
+ //assert(nmem);
+
+ service = nmem_malloc(nmem, sizeof(struct conf_service));
+
+ service->num_metadata = num_metadata;
+ service->metadata = 0;
+ if (service->num_metadata)
+ service->metadata
+ = nmem_malloc(nmem,
+ sizeof(struct conf_metadata) * service->num_metadata);
+ service->num_sortkeys = num_sortkeys;
+ service->sortkeys = 0;
+ if (service->num_sortkeys)
+ service->sortkeys
+ = nmem_malloc(nmem,
+ sizeof(struct conf_sortkey) * service->num_sortkeys);
+
+ return service;
+}
+
+struct conf_metadata* conf_service_add_metadata(NMEM nmem,
+ struct conf_service *service,
+ int field_id,
+ const char *name,
+ enum conf_metadata_type type,
+ enum conf_metadata_merge merge,
+ enum conf_setting_type setting,
+ int brief,
+ int termlist,
+ int rank,
+ int sortkey_offset)
+{
+ struct conf_metadata * md = 0;
+
+ if (!service || !service->metadata || !service->num_metadata
+ || field_id < 0 || !(field_id < service->num_metadata))
+ return 0;
+
+ //md = &((service->metadata)[field_id]);
+ md = service->metadata + field_id;
+ md = conf_metadata_assign(nmem, md, name, type, merge, setting,
+ brief, termlist, rank, sortkey_offset);
+ return md;
+}
+
+
+struct conf_sortkey * conf_service_add_sortkey(NMEM nmem,
+ struct conf_service *service,
+ int field_id,
+ const char *name,
+ enum conf_sortkey_type type)
+{
+ struct conf_sortkey * sk = 0;
+
+ if (!service || !service->sortkeys || !service->num_sortkeys
+ || field_id < 0 || !(field_id < service->num_sortkeys))
+ return 0;
+
+ //sk = &((service->sortkeys)[field_id]);
+ sk = service->sortkeys + field_id;
+ sk = conf_sortkey_assign(nmem, sk, name, type);
+
+ return sk;
+}
+
+
+int conf_service_metadata_field_id(struct conf_service *service,
+ const char * name)
+{
+ int i = 0;
+
+ if (!service || !service->metadata || !service->num_metadata)
+ return -1;
+
+ for(i = 0; i < service->num_metadata; i++) {
+ if (!strcmp(name, (service->metadata[i]).name))
+ return i;
+ }
+
+ return -1;
+};
+
+
+int conf_service_sortkey_field_id(struct conf_service *service,
+ const char * name)
+{
+ int i = 0;
+
+ if (!service || !service->sortkeys || !service->num_sortkeys)
+ return -1;
+
+ for(i = 0; i < service->num_sortkeys; i++) {
+ if (!strcmp(name, (service->sortkeys[i]).name))
+ return i;
+ }
+
+ return -1;
+};
+
+
+
+/* Code to parse configuration file */
+/* ==================================================== */
+
+static struct conf_service *parse_service(xmlNode *node)
+{
+ xmlNode *n;
+ int md_node = 0;
+ int sk_node = 0;
+
+ struct conf_service *service = 0;
+ int num_metadata = 0;
+ int num_sortkeys = 0;
+
+ // count num_metadata and num_sortkeys
+ for (n = node->children; n; n = n->next)
+ if (n->type == XML_ELEMENT_NODE && !strcmp((const char *)
+ n->name, "metadata"))
+ {
+ xmlChar *sortkey = xmlGetProp(n, (xmlChar *) "sortkey");
+ num_metadata++;
+ if (sortkey && strcmp((const char *) sortkey, "no"))
+ num_sortkeys++;
+ xmlFree(sortkey);
+ }
+
+ service = conf_service_create(nmem, num_metadata, num_sortkeys);
+
+ for (n = node->children; n; n = n->next)
+ {
+ if (n->type != XML_ELEMENT_NODE)
+ continue;
+ if (!strcmp((const char *) n->name, (const char *) "metadata"))
+ {
+ xmlChar *xml_name = xmlGetProp(n, (xmlChar *) "name");
+ xmlChar *xml_brief = xmlGetProp(n, (xmlChar *) "brief");
+ xmlChar *xml_sortkey = xmlGetProp(n, (xmlChar *) "sortkey");
+ xmlChar *xml_merge = xmlGetProp(n, (xmlChar *) "merge");
+ xmlChar *xml_type = xmlGetProp(n, (xmlChar *) "type");
+ xmlChar *xml_termlist = xmlGetProp(n, (xmlChar *) "termlist");
+ xmlChar *xml_rank = xmlGetProp(n, (xmlChar *) "rank");
+ xmlChar *xml_setting = xmlGetProp(n, (xmlChar *) "setting");
+
+ enum conf_metadata_type type = Metadata_type_generic;
+ enum conf_metadata_merge merge = Metadata_merge_no;
+ enum conf_setting_type setting = Metadata_setting_no;
+ enum conf_sortkey_type sk_type = Metadata_sortkey_relevance;
+ int brief = 0;
+ int termlist = 0;
+ int rank = 0;
+ int sortkey_offset = 0;
+
+ // now do the parsing logic
+ if (!xml_name)
+ {
+ yaz_log(YLOG_FATAL, "Must specify name in metadata element");
+ return 0;
+ }
+ if (xml_brief)
+ {
+ if (!strcmp((const char *) xml_brief, "yes"))
+ brief = 1;
+ else if (strcmp((const char *) xml_brief, "no"))
+ {
+ yaz_log(YLOG_FATAL, "metadata/brief must be yes or no");
+ return 0;
+ }
+ }
+ else
+ brief = 0;
+
+ if (xml_termlist)
+ {
+ if (!strcmp((const char *) xml_termlist, "yes"))
+ termlist = 1;
+ else if (strcmp((const char *) xml_termlist, "no"))
+ {
+ yaz_log(YLOG_FATAL, "metadata/termlist must be yes or no");
+ return 0;
+ }
+ }
+ else
+ termlist = 0;
+
+ if (xml_rank)
+ rank = atoi((const char *) xml_rank);
+ else
+ rank = 0;
+
+ if (xml_type)
+ {
+ if (!strcmp((const char *) xml_type, "generic"))
+ type = Metadata_type_generic;
+ else if (!strcmp((const char *) xml_type, "year"))
+ type = Metadata_type_year;
+ else if (!strcmp((const char *) xml_type, "date"))
+ type = Metadata_type_date;
+ else
+ {
+ yaz_log(YLOG_FATAL,
+ "Unknown value for metadata/type: %s", xml_type);
+ return 0;
+ }
+ }
+ else
+ type = Metadata_type_generic;
+
+ if (xml_merge)
+ {
+ if (!strcmp((const char *) xml_merge, "no"))
+ merge = Metadata_merge_no;
+ else if (!strcmp((const char *) xml_merge, "unique"))
+ merge = Metadata_merge_unique;
+ else if (!strcmp((const char *) xml_merge, "longest"))
+ merge = Metadata_merge_longest;
+ else if (!strcmp((const char *) xml_merge, "range"))
+ merge = Metadata_merge_range;
+ else if (!strcmp((const char *) xml_merge, "all"))
+ merge = Metadata_merge_all;
+ else
+ {
+ yaz_log(YLOG_FATAL,
+ "Unknown value for metadata/merge: %s", xml_merge);
+ return 0;
+ }
+ }
+ else
+ merge = Metadata_merge_no;
+
+ if (xml_setting)
+ {
+ if (!strcmp((const char *) xml_setting, "no"))
+ setting = Metadata_setting_no;
+ else if (!strcmp((const char *) xml_setting, "postproc"))
+ setting = Metadata_setting_postproc;
+ else if (!strcmp((const char *) xml_setting, "parameter"))
+ setting = Metadata_setting_parameter;
+ else
+ {
+ yaz_log(YLOG_FATAL,
+ "Unknown value for medadata/setting: %s", xml_setting);
+ return 0;
+ }
+ }
+
+ // add a sortkey if so specified
+ if (xml_sortkey && strcmp((const char *) xml_sortkey, "no"))
+ {
+ if (merge == Metadata_merge_no)
+ {
+ yaz_log(YLOG_FATAL,
+ "Can't specify sortkey on a non-merged field");
+ return 0;
+ }
+ if (!strcmp((const char *) xml_sortkey, "numeric"))
+ sk_type = Metadata_sortkey_numeric;
+ else if (!strcmp((const char *) xml_sortkey, "skiparticle"))
+ sk_type = Metadata_sortkey_skiparticle;
+ else
+ {
+ yaz_log(YLOG_FATAL,
+ "Unknown sortkey in metadata element: %s",
+ xml_sortkey);
+ return 0;
+ }
+ sortkey_offset = sk_node;
+
+ conf_service_add_sortkey(nmem, service, sk_node,
+ (const char *) xml_name, sk_type);
+
+ sk_node++;
+ }
+ else
+ sortkey_offset = -1;
+
+ // metadata known, assign values
+ conf_service_add_metadata(nmem, service, md_node,
+ (const char *) xml_name,
+ type, merge, setting,
+ brief, termlist, rank, sortkey_offset);
+
+ xmlFree(xml_name);
+ xmlFree(xml_brief);
+ xmlFree(xml_sortkey);
+ xmlFree(xml_merge);
+ xmlFree(xml_type);
+ xmlFree(xml_termlist);
+ xmlFree(xml_rank);
+ md_node++;
+ }
+ else
+ {
+ yaz_log(YLOG_FATAL, "Bad element: %s", n->name);
+ return 0;
+ }
+ }
+ return service;
+}
+
+static char *parse_settings(xmlNode *node)
+{
+ xmlChar *src = xmlGetProp(node, (xmlChar *) "src");
+ char *r;
+
+ if (src)
+ r = nmem_strdup(nmem, (const char *) src);
+ else
+ {
+ yaz_log(YLOG_FATAL, "Must specify src in targetprofile");
+ return 0;
+ }
+ xmlFree(src);
+ return r;
+}
+
+static struct conf_server *parse_server(xmlNode *node)
+{
+ xmlNode *n;
+ struct conf_server *server = nmem_malloc(nmem, sizeof(struct conf_server));
+
+ server->host = 0;
+ server->port = 0;
+ server->proxy_host = 0;
+ server->proxy_port = 0;
+ server->myurl = 0;
+ server->service = 0;
+ server->next = 0;
+ server->settings = 0;
+ server->relevance_pct = 0;
+ server->sort_pct = 0;
+ server->mergekey_pct = 0;
+
+ for (n = node->children; n; n = n->next)
+ {
+ if (n->type != XML_ELEMENT_NODE)
+ continue;
+ if (!strcmp((const char *) n->name, "listen"))
+ {
+ xmlChar *port = xmlGetProp(n, (xmlChar *) "port");
+ xmlChar *host = xmlGetProp(n, (xmlChar *) "host");
+ if (port)
+ server->port = atoi((const char *) port);
+ if (host)
+ server->host = nmem_strdup(nmem, (const char *) host);
+ xmlFree(port);
+ xmlFree(host);
+ }
+ else if (!strcmp((const char *) n->name, "proxy"))
+ {
+ xmlChar *port = xmlGetProp(n, (xmlChar *) "port");
+ xmlChar *host = xmlGetProp(n, (xmlChar *) "host");
+ xmlChar *myurl = xmlGetProp(n, (xmlChar *) "myurl");
+ if (port)
+ server->proxy_port = atoi((const char *) port);
+ if (host)
+ server->proxy_host = nmem_strdup(nmem, (const char *) host);
+ if (myurl)
+ server->myurl = nmem_strdup(nmem, (const char *) myurl);
+#ifdef GAGA
+ else
+ {
+ yaz_log(YLOG_FATAL, "Must specify @myurl for proxy");
+ return 0;
+ }
+#endif
+ xmlFree(port);
+ xmlFree(host);
+ xmlFree(myurl);
+ }
+ else if (!strcmp((const char *) n->name, "settings"))
+ {
+ if (server->settings)
+ {
+ yaz_log(YLOG_FATAL, "Can't repeat 'settings'");
+ return 0;
+ }
+ if (!(server->settings = parse_settings(n)))
+ return 0;
+ }
+ else if (!strcmp((const char *) n->name, "relevance"))
+ {
+ server->relevance_pct = pp2_charset_create_xml(n->children);
+ }
+ else if (!strcmp((const char *) n->name, "sort"))
+ {
+ server->sort_pct = pp2_charset_create_xml(n->children);
+ }
+ else if (!strcmp((const char *) n->name, "mergekey"))
+ {
+ server->mergekey_pct = pp2_charset_create_xml(n->children);
+ }
+ else if (!strcmp((const char *) n->name, "service"))
+ {
+ struct conf_service *s = parse_service(n);
+ if (!s)
+ return 0;
+ server->service = s;
+ }
+ else
+ {
+ yaz_log(YLOG_FATAL, "Bad element: %s", n->name);
+ return 0;
+ }
+ }
+ if (!server->relevance_pct)
+ server->relevance_pct = pp2_charset_create(0);
+ if (!server->sort_pct)
+ server->sort_pct = pp2_charset_create(0);
+ if (!server->mergekey_pct)
+ server->mergekey_pct = pp2_charset_create(0);
+ return server;
+}
+
+xsltStylesheet *conf_load_stylesheet(const char *fname)
+{
+ char path[256];
+ if (*fname == '/')
+ yaz_snprintf(path, sizeof(path), fname);
+ else
+ yaz_snprintf(path, sizeof(path), "%s/%s", confdir, fname);
+ return xsltParseStylesheetFile((xmlChar *) path);
+}
+
+static struct conf_targetprofiles *parse_targetprofiles(xmlNode *node)
+{
+ struct conf_targetprofiles *r = nmem_malloc(nmem, sizeof(*r));
+ xmlChar *type = xmlGetProp(node, (xmlChar *) "type");
+ xmlChar *src = xmlGetProp(node, (xmlChar *) "src");
+
+ memset(r, 0, sizeof(*r));
+
+ if (type)
+ {
+ if (!strcmp((const char *) type, "local"))
+ r->type = Targetprofiles_local;
+ else
+ {
+ yaz_log(YLOG_FATAL, "Unknown targetprofile type");
+ return 0;
+ }
+ }
+ else
+ {
+ yaz_log(YLOG_FATAL, "Must specify type for targetprofile");
+ return 0;
+ }
+
+ if (src)
+ r->src = nmem_strdup(nmem, (const char *) src);
+ else
+ {
+ yaz_log(YLOG_FATAL, "Must specify src in targetprofile");
+ return 0;
+ }
+ xmlFree(type);
+ xmlFree(src);
+ return r;
+}
+
+static struct conf_config *parse_config(xmlNode *root)
+{
+ xmlNode *n;
+ struct conf_config *r = nmem_malloc(nmem, sizeof(struct conf_config));
+
+ r->servers = 0;
+ r->targetprofiles = 0;
+
+ for (n = root->children; n; n = n->next)
+ {
+ if (n->type != XML_ELEMENT_NODE)
+ continue;
+ if (!strcmp((const char *) n->name, "server"))
+ {
+ struct conf_server *tmp = parse_server(n);
+ if (!tmp)
+ return 0;
+ tmp->next = r->servers;
+ r->servers = tmp;
+ }
+ else if (!strcmp((const char *) n->name, "targetprofiles"))
+ {
+ // It would be fun to be able to fix this sometime
+ if (r->targetprofiles)
+ {
+ yaz_log(YLOG_FATAL, "Can't repeat targetprofiles");
+ return 0;
+ }
+ if (!(r->targetprofiles = parse_targetprofiles(n)))
+ return 0;
+ }
+ else
+ {
+ yaz_log(YLOG_FATAL, "Bad element: %s", n->name);
+ return 0;
+ }
+ }
+ return r;
+}
+
+int read_config(const char *fname)
+{
+ xmlDoc *doc = xmlParseFile(fname);
+ const char *p;
+
+ if (!nmem) // Initialize
+ {
+ nmem = nmem_create();
+ xmlSubstituteEntitiesDefault(1);
+ xmlLoadExtDtdDefaultValue = 1;
+ }
+ if (!doc)
+ {
+ yaz_log(YLOG_FATAL, "Failed to read %s", fname);
+ exit(1);
+ }
+ if ((p = strrchr(fname, '/')))
+ {
+ int len = p - fname;
+ if (len >= sizeof(confdir))
+ len = sizeof(confdir)-1;
+ strncpy(confdir, fname, len);
+ confdir[len] = '\0';
+ }
+ config = parse_config(xmlDocGetRootElement(doc));
+ xmlFreeDoc(doc);
+
+ if (config)
+ return 1;
+ else
+ return 0;
+}
+
+
+/*
+ * Local variables:
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ * vim: shiftwidth=4 tabstop=8 expandtab
+ */
projects / pazpar2-moved-to-github.git / blobdiff