+++ /dev/null
-/*
- * Copyright (c) 1998-2004, Index Data.
- * See the file LICENSE for details.
- *
- * $Id: yaz-proxy-config.cpp,v 1.27 2004-01-30 00:38:28 adam Exp $
- */
-
-#include <ctype.h>
-#include <yaz/log.h>
-#include <yaz++/proxy.h>
-
-Yaz_ProxyConfig::Yaz_ProxyConfig()
-{
- m_copy = 0;
-#if HAVE_XSLT
- m_docPtr = 0;
- m_proxyPtr = 0;
-#endif
-}
-
-Yaz_ProxyConfig::~Yaz_ProxyConfig()
-{
-#if HAVE_XSLT
- if (!m_copy && m_docPtr)
- xmlFreeDoc(m_docPtr);
-#endif
-}
-
-int Yaz_ProxyConfig::read_xml(const char *fname)
-{
-#if HAVE_XSLT
- xmlDocPtr ndoc = xmlParseFile(fname);
-
- if (!ndoc)
- {
- yaz_log(LOG_WARN, "Config file %s not found or parse error", fname);
- return -1; // no good
- }
- xmlNodePtr proxyPtr = xmlDocGetRootElement(ndoc);
- if (!proxyPtr || proxyPtr->type != XML_ELEMENT_NODE ||
- strcmp((const char *) proxyPtr->name, "proxy"))
- {
- yaz_log(LOG_WARN, "No proxy element in %s", fname);
- xmlFreeDoc(ndoc);
- return -1;
- }
- m_proxyPtr = proxyPtr;
-
- // OK: release previous and make it the current one.
- if (m_docPtr)
- xmlFreeDoc(m_docPtr);
- m_docPtr = ndoc;
- return 0;
-#else
- return -2;
-#endif
-}
-
-#if HAVE_XSLT
-const char *Yaz_ProxyConfig::get_text(xmlNodePtr ptr)
-{
- for(ptr = ptr->children; ptr; ptr = ptr->next)
- if (ptr->type == XML_TEXT_NODE)
- {
- xmlChar *t = ptr->content;
- if (t)
- {
- while (*t == ' ')
- t++;
- return (const char *) t;
- }
- }
- return 0;
-}
-#endif
-
-#if HAVE_XSLT
-void Yaz_ProxyConfig::return_limit(xmlNodePtr ptr,
- int *limit_bw,
- int *limit_pdu,
- int *limit_req)
-{
- for (ptr = ptr->children; ptr; ptr = ptr->next)
- {
- if (ptr->type == XML_ELEMENT_NODE
- && !strcmp((const char *) ptr->name, "bandwidth"))
- {
- const char *t = get_text(ptr);
- if (t)
- *limit_bw = atoi(t);
- }
- if (ptr->type == XML_ELEMENT_NODE
- && !strcmp((const char *) ptr->name, "retrieve"))
- {
- const char *t = get_text(ptr);
- if (t)
- *limit_req = atoi(t);
- }
- if (ptr->type == XML_ELEMENT_NODE
- && !strcmp((const char *) ptr->name, "pdu"))
- {
- const char *t = get_text(ptr);
- if (t)
- *limit_pdu = atoi(t);
- }
- }
-}
-#endif
-
-#if HAVE_XSLT
-void Yaz_ProxyConfig::return_target_info(xmlNodePtr ptr,
- const char **url,
- int *limit_bw,
- int *limit_pdu,
- int *limit_req,
- int *target_idletime,
- int *client_idletime,
- int *keepalive_limit_bw,
- int *keepalive_limit_pdu,
- int *pre_init,
- const char **cql2rpn)
-{
- *pre_init = 0;
- int no_url = 0;
- ptr = ptr->children;
- for (; ptr; ptr = ptr->next)
- {
- if (ptr->type == XML_ELEMENT_NODE
- && !strcmp((const char *) ptr->name, "preinit"))
- {
- const char *v = get_text(ptr);
- *pre_init = v ? atoi(v) : 1;
- }
- if (ptr->type == XML_ELEMENT_NODE
- && !strcmp((const char *) ptr->name, "url"))
- {
- const char *t = get_text(ptr);
- if (t && no_url < MAX_ZURL_PLEX)
- {
- url[no_url++] = t;
- url[no_url] = 0;
- }
- }
- if (ptr->type == XML_ELEMENT_NODE
- && !strcmp((const char *) ptr->name, "keepalive"))
- {
- int dummy;
- *keepalive_limit_bw = 500000;
- *keepalive_limit_pdu = 1000;
- return_limit(ptr, keepalive_limit_bw, keepalive_limit_pdu,
- &dummy);
- }
- if (ptr->type == XML_ELEMENT_NODE
- && !strcmp((const char *) ptr->name, "limit"))
- return_limit(ptr, limit_bw, limit_pdu, limit_req);
- if (ptr->type == XML_ELEMENT_NODE
- && !strcmp((const char *) ptr->name, "target-timeout"))
- {
- const char *t = get_text(ptr);
- if (t)
- {
- *target_idletime = atoi(t);
- if (*target_idletime < 0)
- *target_idletime = 0;
- }
- }
- if (ptr->type == XML_ELEMENT_NODE
- && !strcmp((const char *) ptr->name, "client-timeout"))
- {
- const char *t = get_text(ptr);
- if (t)
- {
- *client_idletime = atoi(t);
- if (*client_idletime < 0)
- *client_idletime = 0;
- }
- }
- if (ptr->type == XML_ELEMENT_NODE
- && !strcmp((const char *) ptr->name, "cql2rpn"))
- {
- const char *t = get_text(ptr);
- if (t)
- *cql2rpn = t;
- }
- }
-}
-#endif
-
-int Yaz_ProxyConfig::atoi_l(const char **cp)
-{
- int v = 0;
- while (**cp && isdigit(**cp))
- {
- v = v*10 + (**cp - '0');
- (*cp)++;
- }
- return v;
-}
-
-int Yaz_ProxyConfig::match_list(int v, const char *m)
-{
- while(m && *m)
- {
- while(*m && isspace(*m))
- m++;
- if (*m == '*')
- return 1;
- int l = atoi_l(&m);
- int h = l;
- if (*m == '-')
- {
- ++m;
- h = atoi_l(&m);
- }
- if (v >= l && v <= h)
- return 1;
- if (*m == ',')
- m++;
- }
- return 0;
-}
-
-#if HAVE_XSLT
-int Yaz_ProxyConfig::check_type_1_attributes(ODR odr, xmlNodePtr ptrl,
- Z_AttributeList *attrs,
- char **addinfo)
-{
- int i;
- for (i = 0; i<attrs->num_attributes; i++)
- {
- Z_AttributeElement *el = attrs->attributes[i];
-
- if (!el->attributeType)
- continue;
- int type = *el->attributeType;
- int *value = 0;
-
- if (el->which == Z_AttributeValue_numeric && el->value.numeric)
- value = el->value.numeric;
-
- xmlNodePtr ptr;
- for(ptr = ptrl->children; ptr; ptr = ptr->next)
- {
- if (ptr->type == XML_ELEMENT_NODE &&
- !strcmp((const char *) ptr->name, "attribute"))
- {
- const char *match_type = 0;
- const char *match_value = 0;
- const char *match_error = 0;
- struct _xmlAttr *attr;
- for (attr = ptr->properties; attr; attr = attr->next)
- {
- if (!strcmp((const char *) attr->name, "type") &&
- attr->children && attr->children->type == XML_TEXT_NODE)
- match_type = (const char *) attr->children->content;
- if (!strcmp((const char *) attr->name, "value") &&
- attr->children && attr->children->type == XML_TEXT_NODE)
- match_value = (const char *) attr->children->content;
- if (!strcmp((const char *) attr->name, "error") &&
- attr->children && attr->children->type == XML_TEXT_NODE)
- match_error = (const char *) attr->children->content;
- }
- if (match_type && match_value)
- {
- char addinfo_str[20];
- if (!match_list(type, match_type))
- continue;
-
- *addinfo_str = '\0';
- if (!strcmp(match_type, "*"))
- sprintf (addinfo_str, "%d", type);
- else if (value)
- {
- if (!match_list(*value, match_value))
- continue;
- sprintf (addinfo_str, "%d", *value);
- }
- else
- continue;
-
- if (match_error)
- {
- if (*addinfo_str)
- *addinfo = odr_strdup(odr, addinfo_str);
- return atoi(match_error);
- }
- break;
- }
- }
- }
- }
- return 0;
-}
-#endif
-
-#if HAVE_XSLT
-int Yaz_ProxyConfig::check_type_1_structure(ODR odr, xmlNodePtr ptr,
- Z_RPNStructure *q,
- char **addinfo)
-{
- if (q->which == Z_RPNStructure_complex)
- {
- int e = check_type_1_structure(odr, ptr, q->u.complex->s1, addinfo);
- if (e)
- return e;
- e = check_type_1_structure(odr, ptr, q->u.complex->s2, addinfo);
- return e;
- }
- else if (q->which == Z_RPNStructure_simple)
- {
- if (q->u.simple->which == Z_Operand_APT)
- {
- return check_type_1_attributes(
- odr, ptr, q->u.simple->u.attributesPlusTerm->attributes,
- addinfo);
- }
- }
- return 0;
-}
-#endif
-
-#if HAVE_XSLT
-int Yaz_ProxyConfig::check_type_1(ODR odr, xmlNodePtr ptr, Z_RPNQuery *query,
- char **addinfo)
-{
- // possibly check for Bib-1
- return check_type_1_structure(odr, ptr, query->RPNStructure, addinfo);
-}
-#endif
-
-int Yaz_ProxyConfig::check_query(ODR odr, const char *name, Z_Query *query,
- char **addinfo)
-{
-#if HAVE_XSLT
- xmlNodePtr ptr;
-
- ptr = find_target_node(name, 0);
- if (ptr)
- {
- if (query->which == Z_Query_type_1 || query->which == Z_Query_type_101)
- return check_type_1(odr, ptr, query->u.type_1, addinfo);
- }
-#endif
- return 0;
-}
-
-#if HAVE_XSLT
-int Yaz_ProxyConfig::check_schema(xmlNodePtr ptr, Z_RecordComposition *comp,
- const char *schema_identifier)
-{
- char *esn = 0;
- int default_match = 1;
- if (comp && comp->which == Z_RecordComp_simple &&
- comp->u.simple && comp->u.simple->which == Z_ElementSetNames_generic)
- {
- esn = comp->u.simple->u.generic;
- }
- // if no ESN/schema was given accept..
- if (!esn)
- return 1;
- // check if schema identifier match
- if (schema_identifier && !strcmp(esn, schema_identifier))
- return 1;
- // Check each name element
- for (; ptr; ptr = ptr->next)
- {
- if (ptr->type == XML_ELEMENT_NODE
- && !strcmp((const char *) ptr->name, "name"))
- {
- xmlNodePtr tptr = ptr->children;
- default_match = 0;
- for (; tptr; tptr = tptr->next)
- if (tptr->type == XML_TEXT_NODE && tptr->content)
- {
- xmlChar *t = tptr->content;
- while (*t && isspace(*t))
- t++;
- int i = 0;
- while (esn[i] && esn[i] == t[i])
- i++;
- if (!esn[i] && (!t[i] || isspace(t[i])))
- return 1;
- }
- }
- }
- return default_match;
-}
-#endif
-
-int Yaz_ProxyConfig::check_syntax(ODR odr, const char *name,
- Odr_oid *syntax, Z_RecordComposition *comp,
- char **addinfo,
- char **stylesheet, char **schema)
-{
- if (stylesheet)
- {
- xfree (*stylesheet);
- *stylesheet = 0;
- }
- if (schema)
- {
- xfree (*schema);
- *schema = 0;
- }
-#if HAVE_XSLT
- int syntax_has_matched = 0;
- xmlNodePtr ptr;
-
- ptr = find_target_node(name, 0);
- if (!ptr)
- return 0;
- for(ptr = ptr->children; ptr; ptr = ptr->next)
- {
- if (ptr->type == XML_ELEMENT_NODE &&
- !strcmp((const char *) ptr->name, "syntax"))
- {
- int match = 0; // if we match record syntax
- const char *match_type = 0;
- const char *match_error = 0;
- const char *match_marcxml = 0;
- const char *match_stylesheet = 0;
- const char *match_identifier = 0;
- struct _xmlAttr *attr;
- for (attr = ptr->properties; attr; attr = attr->next)
- {
- if (!strcmp((const char *) attr->name, "type") &&
- attr->children && attr->children->type == XML_TEXT_NODE)
- match_type = (const char *) attr->children->content;
- if (!strcmp((const char *) attr->name, "error") &&
- attr->children && attr->children->type == XML_TEXT_NODE)
- match_error = (const char *) attr->children->content;
- if (!strcmp((const char *) attr->name, "marcxml") &&
- attr->children && attr->children->type == XML_TEXT_NODE)
- match_marcxml = (const char *) attr->children->content;
- if (!strcmp((const char *) attr->name, "stylesheet") &&
- attr->children && attr->children->type == XML_TEXT_NODE)
- match_stylesheet = (const char *) attr->children->content;
- if (!strcmp((const char *) attr->name, "identifier") &&
- attr->children && attr->children->type == XML_TEXT_NODE)
- match_identifier = (const char *) attr->children->content;
- }
- if (match_type)
- {
- if (!strcmp(match_type, "*"))
- match = 1;
- else if (!strcmp(match_type, "none"))
- {
- if (syntax == 0)
- match = 1;
- }
- else if (syntax)
- {
- int match_oid[OID_SIZE];
- oid_name_to_oid(CLASS_RECSYN, match_type, match_oid);
- if (oid_oidcmp(match_oid, syntax) == 0)
- match = 1;
- }
- }
- if (match)
- {
- if (!match_error)
- syntax_has_matched = 1;
- match = check_schema(ptr->children, comp, match_identifier);
- }
- if (match)
- {
- if (stylesheet && match_stylesheet)
- {
- xfree(*stylesheet);
- *stylesheet = xstrdup(match_stylesheet);
- }
- if (schema && match_identifier)
- {
- xfree(*schema);
- *schema = xstrdup(match_identifier);
- }
- if (match_marcxml)
- {
- return -1;
- }
- if (match_error)
- {
- if (syntax_has_matched) // if syntax OK, bad schema/ESN
- return 25;
- if (syntax)
- {
- char dotoid_str[100];
- oid_to_dotstring(syntax, dotoid_str);
- *addinfo = odr_strdup(odr, dotoid_str);
- }
- return atoi(match_error);
- }
- return 0;
- }
- }
- }
-#endif
- return 0;
-}
-
-#if HAVE_XSLT
-xmlNodePtr Yaz_ProxyConfig::find_target_db(xmlNodePtr ptr, const char *db)
-{
- xmlNodePtr dptr;
- if (!db)
- return ptr;
- if (!ptr)
- return 0;
- for (dptr = ptr->children; dptr; dptr = dptr->next)
- if (dptr->type == XML_ELEMENT_NODE &&
- !strcmp((const char *) dptr->name, "database"))
- {
- struct _xmlAttr *attr;
- for (attr = dptr->properties; attr; attr = attr->next)
- if (!strcmp((const char *) attr->name, "name"))
- {
- if (attr->children
- && attr->children->type==XML_TEXT_NODE
- && attr->children->content
- && (!strcmp((const char *) attr->children->content, db)
- || !strcmp((const char *) attr->children->content,
- "*")))
- return dptr;
- }
- }
- return ptr;
-}
-
-xmlNodePtr Yaz_ProxyConfig::find_target_node(const char *name, const char *db)
-{
- xmlNodePtr ptr;
- if (!m_proxyPtr)
- return 0;
- for (ptr = m_proxyPtr->children; ptr; ptr = ptr->next)
- {
- if (ptr->type == XML_ELEMENT_NODE &&
- !strcmp((const char *) ptr->name, "target"))
- {
- // default one ?
- if (!name)
- {
- // <target default="1"> ?
- struct _xmlAttr *attr;
- for (attr = ptr->properties; attr; attr = attr->next)
- if (!strcmp((const char *) attr->name, "default") &&
- attr->children && attr->children->type == XML_TEXT_NODE)
- {
- xmlChar *t = attr->children->content;
- if (!t || *t == '1')
- {
- return find_target_db(ptr, db);
- }
- }
- }
- else
- {
- // <target name="name"> ?
- struct _xmlAttr *attr;
- for (attr = ptr->properties; attr; attr = attr->next)
- if (!strcmp((const char *) attr->name, "name"))
- {
- if (attr->children
- && attr->children->type==XML_TEXT_NODE
- && attr->children->content
- && (!strcmp((const char *) attr->children->content,
- name)
- || !strcmp((const char *) attr->children->content,
- "*")))
- {
- return find_target_db(ptr, db);
- }
- }
- }
- }
- }
- return 0;
-}
-#endif
-
-int Yaz_ProxyConfig::get_target_no(int no,
- const char **name,
- const char **url,
- int *limit_bw,
- int *limit_pdu,
- int *limit_req,
- int *target_idletime,
- int *client_idletime,
- int *max_clients,
- int *keepalive_limit_bw,
- int *keepalive_limit_pdu,
- int *pre_init,
- const char **cql2rpn)
-{
-#if HAVE_XSLT
- xmlNodePtr ptr;
- if (!m_proxyPtr)
- return 0;
- int i = 0;
- for (ptr = m_proxyPtr->children; ptr; ptr = ptr->next)
- if (ptr->type == XML_ELEMENT_NODE &&
- !strcmp((const char *) ptr->name, "target"))
- {
- if (i == no)
- {
- struct _xmlAttr *attr;
- for (attr = ptr->properties; attr; attr = attr->next)
- if (!strcmp((const char *) attr->name, "name"))
- {
- if (attr->children
- && attr->children->type==XML_TEXT_NODE
- && attr->children->content)
- *name = (const char *) attr->children->content;
- }
- return_target_info(ptr, url, limit_bw, limit_pdu, limit_req,
- target_idletime, client_idletime,
- keepalive_limit_bw, keepalive_limit_pdu,
- pre_init, cql2rpn);
- return 1;
- }
- i++;
- }
-#endif
- return 0;
-}
-
-int Yaz_ProxyConfig::mycmp(const char *hay, const char *item, size_t len)
-{
- if (len == strlen(item) && memcmp(hay, item, len) == 0)
- return 1;
- return 0;
-}
-
-void Yaz_ProxyConfig::get_generic_info(int *log_mask,
- int *max_clients)
-{
-#if HAVE_XSLT
- xmlNodePtr ptr;
- if (!m_proxyPtr)
- return;
- for (ptr = m_proxyPtr->children; ptr; ptr = ptr->next)
- {
- if (ptr->type == XML_ELEMENT_NODE
- && !strcmp((const char *) ptr->name, "log"))
- {
- const char *v = get_text(ptr);
- *log_mask = 0;
- while (v && *v)
- {
- const char *cp = v;
- while (*cp && *cp != ',' && !isspace(*cp))
- cp++;
- size_t len = cp - v;
- if (mycmp(v, "client-apdu", len))
- *log_mask |= PROXY_LOG_APDU_CLIENT;
- if (mycmp(v, "server-apdu", len))
- *log_mask |= PROXY_LOG_APDU_SERVER;
- if (mycmp(v, "client-requests", len))
- *log_mask |= PROXY_LOG_REQ_CLIENT;
- if (mycmp(v, "server-requests", len))
- *log_mask |= PROXY_LOG_REQ_SERVER;
- if (isdigit(*v))
- *log_mask |= atoi(v);
- if (*cp == ',')
- cp++;
- while (*cp && isspace(*cp))
- cp++;
- v = cp;
- }
- }
- if (ptr->type == XML_ELEMENT_NODE &&
- !strcmp((const char *) ptr->name, "max-clients"))
- {
- const char *t = get_text(ptr);
- if (t)
- {
- *max_clients = atoi(t);
- if (*max_clients < 1)
- *max_clients = 1;
- }
- }
- }
-#endif
-}
-
-char *Yaz_ProxyConfig::get_explain(ODR odr, const char *name, const char *db,
- int *len)
-{
-#if HAVE_XSLT
- xmlNodePtr ptr = find_target_node(name, db);
- if (ptr)
- {
- ptr = ptr->children;
- for (; ptr; ptr = ptr->next)
- if (ptr->type == XML_ELEMENT_NODE &&
- !strcmp((const char *) ptr->name, "explain"))
- {
- xmlNodePtr ptr1 = ptr->children;
- if (db)
- {
- for (; ptr1; ptr1 = ptr1->next)
- if (ptr1->type == XML_ELEMENT_NODE &&
- !strcmp((const char *) ptr1->name, "serverInfo"))
- break;
- if (!ptr1)
- continue;
- for (ptr1 = ptr1->children; ptr1; ptr1 = ptr1->next)
- if (ptr1->type == XML_ELEMENT_NODE &&
- !strcmp((const char *) ptr1->name, "database"))
- break;
-
- if (!ptr1)
- continue;
- for (ptr1 = ptr1->children; ptr1; ptr1 = ptr1->next)
- if (ptr1->type == XML_TEXT_NODE &&
- ptr1->content &&
- !strcmp((const char *) ptr1->content, db))
- break;
- if (!ptr1)
- continue;
- }
- xmlNodePtr ptr2 = xmlCopyNode(ptr, 1);
-
- xmlDocPtr doc = xmlNewDoc((const xmlChar *) "1.0");
-
- xmlDocSetRootElement(doc, ptr2);
-
- xmlChar *buf_out;
- xmlDocDumpMemory(doc, &buf_out, len);
- char *content = (char*) odr_malloc(odr, *len);
- memcpy(content, buf_out, *len);
-
- xmlFree(buf_out);
- xmlFreeDoc(doc);
- return content;
- }
- }
-#endif
- return 0;
-}
-
-void Yaz_ProxyConfig::get_target_info(const char *name,
- const char **url,
- int *limit_bw,
- int *limit_pdu,
- int *limit_req,
- int *target_idletime,
- int *client_idletime,
- int *max_clients,
- int *keepalive_limit_bw,
- int *keepalive_limit_pdu,
- int *pre_init,
- const char **cql2rpn)
-{
-#if HAVE_XSLT
- xmlNodePtr ptr;
- if (!m_proxyPtr)
- {
- url[0] = name;
- url[1] = 0;
- return;
- }
- url[0] = 0;
- for (ptr = m_proxyPtr->children; ptr; ptr = ptr->next)
- {
- if (ptr->type == XML_ELEMENT_NODE &&
- !strcmp((const char *) ptr->name, "max-clients"))
- {
- const char *t = get_text(ptr);
- if (t)
- {
- *max_clients = atoi(t);
- if (*max_clients < 1)
- *max_clients = 1;
- }
- }
- }
- ptr = find_target_node(name, 0);
- if (ptr)
- {
- if (name)
- {
- url[0] = name;
- url[1] = 0;
- }
- return_target_info(ptr, url, limit_bw, limit_pdu, limit_req,
- target_idletime, client_idletime,
- keepalive_limit_bw, keepalive_limit_pdu,
- pre_init, cql2rpn);
- }
-#else
- *url = name;
- return;
-#endif
-}
-
-
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