X-Git-Url: http://jsfdemo.indexdata.com/?a=blobdiff_plain;f=src%2Fconfig.c;h=3ceb42715b17e4020def9aa1ecf8200c5190cf77;hb=bec266c19b530f61fa576d2b27198ada7d7f5fe3;hp=ee5ad34abea8363807c628dc067fcef4423ff2a9;hpb=57c8fe348b7ffe005ac2825e84e237de34113987;p=pazpar2-moved-to-github.git

diff --git a/src/config.c b/src/config.c
index ee5ad34..3ceb427 100644
--- a/src/config.c
+++ b/src/config.c
@@ -1 +1,462 @@
-/* $Id: config.c,v 1.1 2006-12-27 02:14:27 quinn Exp $ */
+/* $Id: config.c,v 1.13 2007-01-15 16:56:51 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>
+
+#define CONFIG_NOEXTERNS
+#include "config.h"
+
+static NMEM nmem = 0;
+static char confdir[256] = ".";
+
+struct conf_config *config = 0;
+
+/* Code to parse configuration file */
+/* ==================================================== */
+
+static struct conf_service *parse_service(xmlNode *node)
+{
+    xmlNode *n;
+    struct conf_service *r = nmem_malloc(nmem, sizeof(struct conf_service));
+    int md_node = 0;
+    int sk_node = 0;
+
+    r->num_sortkeys = r->num_metadata = 0;
+    // Allocate array of conf metadata and sortkey tructs, if necessary
+    for (n = node->children; n; n = n->next)
+        if (n->type == XML_ELEMENT_NODE && !strcmp(n->name, "metadata"))
+        {
+            xmlChar *sortkey = xmlGetProp(n, "sortkey");
+            r->num_metadata++;
+            if (sortkey && strcmp(sortkey, "no"))
+                r->num_sortkeys++;
+            xmlFree(sortkey);
+        }
+    if (r->num_metadata)
+        r->metadata = nmem_malloc(nmem, sizeof(struct conf_metadata) * r->num_metadata);
+    else
+        r->metadata = 0;
+    if (r->num_sortkeys)
+        r->sortkeys = nmem_malloc(nmem, sizeof(struct conf_sortkey) * r->num_sortkeys);
+    else
+        r->sortkeys = 0;
+
+    for (n = node->children; n; n = n->next)
+    {
+        if (n->type != XML_ELEMENT_NODE)
+            continue;
+        if (!strcmp(n->name, "metadata"))
+        {
+            struct conf_metadata *md = &r->metadata[md_node];
+            xmlChar *name = xmlGetProp(n, "name");
+            xmlChar *brief = xmlGetProp(n, "brief");
+            xmlChar *sortkey = xmlGetProp(n, "sortkey");
+            xmlChar *merge = xmlGetProp(n, "merge");
+            xmlChar *type = xmlGetProp(n, "type");
+            xmlChar *termlist = xmlGetProp(n, "termlist");
+            xmlChar *rank = xmlGetProp(n, "rank");
+
+            if (!name)
+            {
+                yaz_log(YLOG_FATAL, "Must specify name in metadata element");
+                return 0;
+            }
+            md->name = nmem_strdup(nmem, name);
+            if (brief)
+            {
+                if (!strcmp(brief, "yes"))
+                    md->brief = 1;
+                else if (strcmp(brief, "no"))
+                {
+                    yaz_log(YLOG_FATAL, "metadata/brief must be yes or no");
+                    return 0;
+                }
+            }
+            else
+                md->brief = 0;
+
+            if (termlist)
+            {
+                if (!strcmp(termlist, "yes"))
+                    md->termlist = 1;
+                else if (strcmp(termlist, "no"))
+                {
+                    yaz_log(YLOG_FATAL, "metadata/termlist must be yes or no");
+                    return 0;
+                }
+            }
+            else
+                md->termlist = 0;
+
+            if (rank)
+                md->rank = atoi(rank);
+            else
+                md->rank = 0;
+
+            if (type)
+            {
+                if (!strcmp(type, "generic"))
+                    md->type = Metadata_type_generic;
+                else if (!strcmp(type, "year"))
+                    md->type = Metadata_type_year;
+                else
+                {
+                    yaz_log(YLOG_FATAL, "Unknown value for metadata/type: %s", type);
+                    return 0;
+                }
+            }
+            else
+                md->type = Metadata_type_generic;
+
+            if (merge)
+            {
+                if (!strcmp(merge, "no"))
+                    md->merge = Metadata_merge_no;
+                else if (!strcmp(merge, "unique"))
+                    md->merge = Metadata_merge_unique;
+                else if (!strcmp(merge, "longest"))
+                    md->merge = Metadata_merge_longest;
+                else if (!strcmp(merge, "range"))
+                    md->merge = Metadata_merge_range;
+                else if (!strcmp(merge, "all"))
+                    md->merge = Metadata_merge_all;
+                else
+                {
+                    yaz_log(YLOG_FATAL, "Unknown value for metadata/merge: %s", merge);
+                    return 0;
+                }
+            }
+            else
+                md->merge = Metadata_merge_no;
+
+            if (sortkey && strcmp(sortkey, "no"))
+            {
+                struct conf_sortkey *sk = &r->sortkeys[sk_node];
+                if (md->merge == Metadata_merge_no)
+                {
+                    yaz_log(YLOG_FATAL, "Can't specify sortkey on a non-merged field");
+                    return 0;
+                }
+                if (!strcmp(sortkey, "numeric"))
+                    sk->type = Metadata_sortkey_numeric;
+                else if (!strcmp(sortkey, "skiparticle"))
+                    sk->type = Metadata_sortkey_skiparticle;
+                else
+                {
+                    yaz_log(YLOG_FATAL, "Unknown sortkey in metadata element: %s", sortkey);
+                    return 0;
+                }
+                sk->name = md->name;
+                md->sortkey_offset = sk_node;
+                sk_node++;
+            }
+            else
+                md->sortkey_offset = -1;
+
+            xmlFree(name);
+            xmlFree(brief);
+            xmlFree(sortkey);
+            xmlFree(merge);
+            xmlFree(termlist);
+            xmlFree(rank);
+            md_node++;
+        }
+        else
+        {
+            yaz_log(YLOG_FATAL, "Bad element: %s", n->name);
+            return 0;
+        }
+    }
+    return r;
+}
+
+static struct conf_server *parse_server(xmlNode *node)
+{
+    xmlNode *n;
+    struct conf_server *r = nmem_malloc(nmem, sizeof(struct conf_server));
+
+    r->host = 0;
+    r->port = 0;
+    r->proxy_host = 0;
+    r->proxy_port = 0;
+    r->service = 0;
+    r->next = 0;
+
+    for (n = node->children; n; n = n->next)
+    {
+        if (n->type != XML_ELEMENT_NODE)
+            continue;
+        if (!strcmp(n->name, "listen"))
+        {
+            xmlChar *port = xmlGetProp(n, "port");
+            xmlChar *host = xmlGetProp(n, "host");
+            if (port)
+                r->port = atoi(port);
+            if (host)
+                r->host = nmem_strdup(nmem, host);
+            xmlFree(port);
+            xmlFree(host);
+        }
+        else if (!strcmp(n->name, "proxy"))
+        {
+            xmlChar *port = xmlGetProp(n, "port");
+            xmlChar *host = xmlGetProp(n, "host");
+            if (port)
+                r->proxy_port = atoi(port);
+            if (host)
+                r->proxy_host = nmem_strdup(nmem, host);
+            xmlFree(port);
+            xmlFree(host);
+        }
+        else if (!strcmp(n->name, "service"))
+        {
+            struct conf_service *s = parse_service(n);
+            if (!s)
+                return 0;
+            r->service = s;
+        }
+        else
+        {
+            yaz_log(YLOG_FATAL, "Bad element: %s", n->name);
+            return 0;
+        }
+    }
+    return r;
+}
+
+static xsltStylesheet *load_stylesheet(const char *fname)
+{
+    char path[256];
+    sprintf(path, "%s/%s", confdir, fname);
+    return xsltParseStylesheetFile(path);
+}
+
+static void setup_marc(struct conf_retrievalprofile *r)
+{
+    yaz_iconv_t cm;
+    r->yaz_marc = yaz_marc_create();
+    if (!(cm = yaz_iconv_open("utf-8", r->native_encoding)))
+    {
+        yaz_log(YLOG_WARN, "Unable to support mapping from %s", r->native_encoding);
+        return;
+    }
+    yaz_marc_iconv(r->yaz_marc, cm);
+}
+
+static struct conf_retrievalprofile *parse_retrievalprofile(xmlNode *node)
+{
+    struct conf_retrievalprofile *r = nmem_malloc(nmem, sizeof(struct conf_retrievalprofile));
+    xmlNode *n;
+    struct conf_retrievalmap **rm = &r->maplist;
+
+    r->requestsyntax = 0;
+    r->native_syntax = Nativesyn_xml;
+    r->native_format = Nativeform_na;
+    r->native_encoding = 0;
+    r->native_mapto = Nativemapto_na;
+    r->yaz_marc = 0;
+    r->maplist = 0;
+    r->next = 0;
+
+    for (n = node->children; n; n = n->next)
+    {
+        if (n->type != XML_ELEMENT_NODE)
+            continue;
+        if (!strcmp(n->name, "requestsyntax"))
+        {
+            xmlChar *content = xmlNodeGetContent(n);
+            if (content)
+                r->requestsyntax = nmem_strdup(nmem, content);
+        }
+        else if (!strcmp(n->name, "nativesyntax"))
+        {
+            xmlChar *name = xmlGetProp(n, "name");
+            xmlChar *format = xmlGetProp(n, "format");
+            xmlChar *encoding = xmlGetProp(n, "encoding");
+            xmlChar *mapto = xmlGetProp(n, "mapto");
+            if (!name)
+            {
+                yaz_log(YLOG_WARN, "Missing name in 'nativesyntax' element");
+                return 0;
+            }
+            if (encoding)
+                r->native_encoding = encoding;
+            if (!strcmp(name, "iso2709"))
+            {
+                r->native_syntax = Nativesyn_iso2709;
+                // Set a few defaults, too
+                r->native_format = Nativeform_marc21;
+                r->native_mapto = Nativemapto_marcxml;
+                if (!r->native_encoding)
+                    r->native_encoding = "marc-8";
+                setup_marc(r);
+            }
+            else if (!strcmp(name, "xml"))
+                r->native_syntax = Nativesyn_xml;
+            else
+            {
+                yaz_log(YLOG_WARN, "Unknown native syntax name %s", name);
+                return 0;
+            }
+            if (format)
+            {
+                if (!strcmp(format, "marc21") || !strcmp(format, "usmarc"))
+                    r->native_format = Nativeform_marc21;
+                else
+                {
+                    yaz_log(YLOG_WARN, "Unknown native format name %s", format);
+                    return 0;
+                }
+            }
+            if (mapto)
+            {
+                if (!strcmp(mapto, "marcxml"))
+                    r->native_mapto = Nativemapto_marcxml;
+                else if (!strcmp(mapto, "marcxchange"))
+                    r->native_mapto = Nativemapto_marcxchange;
+                else
+                {
+                    yaz_log(YLOG_WARN, "Unknown mapto target %s", format);
+                    return 0;
+                }
+            }
+            xmlFree(name);
+            xmlFree(format);
+            xmlFree(encoding);
+            xmlFree(mapto);
+        }
+        else if (!strcmp(n->name, "map"))
+        {
+            struct conf_retrievalmap *m = nmem_malloc(nmem, sizeof(struct conf_retrievalmap));
+            xmlChar *type = xmlGetProp(n, "type");
+            xmlChar *charset = xmlGetProp(n, "charset");
+            xmlChar *format = xmlGetProp(n, "format");
+            xmlChar *stylesheet = xmlGetProp(n, "stylesheet");
+            memset(m, 0, sizeof(*m));
+            if (type)
+            {
+                if (!strcmp(type, "xslt"))
+                    m->type = Map_xslt;
+                else
+                {
+                    yaz_log(YLOG_WARN, "Unknown map type: %s", type);
+                    return 0;
+                }
+            }
+            if (charset)
+                m->charset = nmem_strdup(nmem, charset);
+            if (format)
+                m->format = nmem_strdup(nmem, format);
+            if (stylesheet)
+            {
+                if (!(m->stylesheet = load_stylesheet(stylesheet)))
+                    return 0;
+            }
+            *rm = m;
+            rm = &m->next;
+            xmlFree(type);
+            xmlFree(charset);
+            xmlFree(format);
+            xmlFree(stylesheet);
+        }
+        else
+        {
+            yaz_log(YLOG_FATAL, "Bad element in retrievalprofile: %s", n->name);
+            return 0;
+        }
+    }
+
+    return r;
+}
+
+static struct conf_config *parse_config(xmlNode *root)
+{
+    xmlNode *n;
+    struct conf_config *r = nmem_malloc(nmem, sizeof(struct conf_config));
+    struct conf_retrievalprofile **rp = &r->retrievalprofiles;
+
+    r->servers = 0;
+    r->queryprofiles = 0;
+    r->retrievalprofiles = 0;
+
+    for (n = root->children; n; n = n->next)
+    {
+        if (n->type != XML_ELEMENT_NODE)
+            continue;
+        if (!strcmp(n->name, "server"))
+        {
+            struct conf_server *tmp = parse_server(n);
+            if (!tmp)
+                return 0;
+            tmp->next = r->servers;
+            r->servers = tmp;
+        }
+        else if (!strcmp(n->name, "queryprofile"))
+        {
+        }
+        else if (!strcmp(n->name, "retrievalprofile"))
+        {
+            if (!(*rp = parse_retrievalprofile(n)))
+                return 0;
+            rp = &(*rp)->next;
+        }
+        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;
+        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
+ */