/*
- * Copyright (c) 1998-2000, Index Data.
+ * Copyright (c) 1998-2003, Index Data.
* See the file LICENSE for details.
*
- * $Id: proxy.h,v 1.1 2002-10-09 12:50:26 adam Exp $
+ * $Id: proxy.h,v 1.14 2003-10-09 12:11:09 adam Exp $
*/
#include <yaz++/z-assoc.h>
#include <yaz++/z-query.h>
#include <yaz++/z-databases.h>
+#if HAVE_XML2
+#include <libxml/parser.h>
+#include <libxml/tree.h>
+#endif
+
class Yaz_Proxy;
+#define MAX_ZURL_PLEX 10
+
+struct Yaz_RecordCache_Entry;
+
+class YAZ_EXPORT Yaz_ProxyConfig {
+public:
+ Yaz_ProxyConfig();
+ ~Yaz_ProxyConfig();
+ int read_xml(const char *fname);
+ void 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);
+ void operator=(const Yaz_ProxyConfig &conf);
+ int check_query(ODR odr, const char *name, Z_Query *query, char **addinfo);
+ int check_syntax(ODR odr, const char *name,
+ Odr_oid *syntax, char **addinfo);
+private:
+#if HAVE_XML2
+ xmlDocPtr m_docPtr;
+ xmlNodePtr m_proxyPtr;
+ void 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);
+ void return_limit(xmlNodePtr ptr,
+ int *limit_bw, int *limit_pdu, int *limit_req);
+ int check_type_1(ODR odr, xmlNodePtr ptr, Z_RPNQuery *query,
+ char **addinfo);
+ xmlNodePtr find_target_node(const char *name);
+ const char *get_text(xmlNodePtr ptr);
+ int check_type_1_attributes(ODR odr, xmlNodePtr ptr,
+ Z_AttributeList *attrs,
+ char **addinfo);
+ int check_type_1_structure(ODR odr, xmlNodePtr ptr, Z_RPNStructure *q,
+ char **addinfo);
+#endif
+ int m_copy;
+ int match_list(int v, const char *m);
+ int atoi_l(const char **cp);
+
+};
+
+class YAZ_EXPORT Yaz_RecordCache {
+ public:
+ Yaz_RecordCache ();
+ ~Yaz_RecordCache ();
+ void add (ODR o, Z_NamePlusRecordList *npr, int start, int hits);
+
+ int lookup (ODR o, Z_NamePlusRecordList **npr, int start, int num,
+ Odr_oid *syntax, Z_RecordComposition *comp);
+ void clear();
+
+ void copy_searchRequest(Z_SearchRequest *sr);
+ void copy_presentRequest(Z_PresentRequest *pr);
+ void set_max_size(int sz);
+ private:
+ NMEM m_mem;
+ Yaz_RecordCache_Entry *m_entries;
+ Z_SearchRequest *m_searchRequest;
+ Z_PresentRequest *m_presentRequest;
+ int match (Yaz_RecordCache_Entry *entry,
+ Odr_oid *syntax, int offset,
+ Z_RecordComposition *comp);
+ int m_max_size;
+};
+
+class YAZ_EXPORT Yaz_bw {
+ public:
+ Yaz_bw(int sz);
+ ~Yaz_bw();
+ void add_bytes(int m);
+ int get_total();
+ private:
+ long m_sec; // time of most recent bucket
+ int *m_bucket;
+ int m_ptr;
+ int m_size;
+};
+
/// Private class
class YAZ_EXPORT Yaz_ProxyClient : public Yaz_Z_Assoc {
- friend Yaz_Proxy;
+ friend class Yaz_Proxy;
Yaz_ProxyClient(IYaz_PDU_Observable *the_PDU_Observable);
~Yaz_ProxyClient();
- void recv_Z_PDU(Z_APDU *apdu);
+ void recv_Z_PDU(Z_APDU *apdu, int len);
IYaz_PDU_Observer* sessionNotify
(IYaz_PDU_Observable *the_PDU_Observable, int fd);
void shutdown();
void failNotify();
void timeoutNotify();
void connectNotify();
- char m_cookie[32];
+ int send_to_target(Z_APDU *apdu);
+ const char *get_session_str();
+ char *m_cookie;
Yaz_ProxyClient *m_next;
Yaz_ProxyClient **m_prev;
int m_init_flag;
int m_sr_transform;
int m_seqno;
int m_waiting;
+ int m_resultSetStartPoint;
+ int m_bytes_sent;
+ int m_bytes_recv;
+ int m_pdu_recv;
ODR m_init_odr;
Z_APDU *m_initResponse;
+ Yaz_RecordCache m_cache;
};
/// Information Retrieval Proxy Server.
Yaz_Proxy *m_parent;
int m_seqno;
int m_max_clients;
- int m_keepalive;
+ int m_keepalive_limit_bw;
+ int m_keepalive_limit_pdu;
+ int m_client_idletime;
+ int m_target_idletime;
char *m_proxyTarget;
+ char *m_default_target;
char *m_proxy_authentication;
long m_seed;
char *m_optimize;
+ int m_session_no; // sequence for each client session
+ char m_session_str[30]; // session string (time:session_no)
+ Yaz_ProxyConfig m_config;
+ char *m_config_fname;
+ int m_bytes_sent;
+ int m_bytes_recv;
+ int m_bw_max;
+ Yaz_bw m_bw_stat;
+ int m_pdu_max;
+ Yaz_bw m_pdu_stat;
+ Z_APDU *m_bw_hold_PDU;
+ int m_max_record_retrieve;
+ void handle_max_record_retrieve(Z_APDU *apdu);
+ void display_diagrecs(Z_DiagRec **pp, int num);
+ Z_Records *create_nonSurrogateDiagnostics(ODR o, int error,
+ const char *addinfo);
+
+ Z_APDU *handle_query_validation(Z_APDU *apdu);
+ Z_APDU *handle_syntax_validation(Z_APDU *apdu);
+ const char *load_balance(const char **url);
+ int m_reconfig_flag;
+ void check_reconfigure();
+ int m_request_no;
+ int m_invalid_session;
public:
Yaz_Proxy(IYaz_PDU_Observable *the_PDU_Observable);
~Yaz_Proxy();
- void recv_Z_PDU(Z_APDU *apdu);
+ void recv_Z_PDU(Z_APDU *apdu, int len);
+ void recv_Z_PDU_0(Z_APDU *apdu);
IYaz_PDU_Observer* sessionNotify
(IYaz_PDU_Observable *the_PDU_Observable, int fd);
void failNotify();
void timeoutNotify();
void connectNotify();
const char *option(const char *name, const char *value);
- void set_proxy_target(const char *target);
+ void set_default_target(const char *target);
void set_proxy_authentication (const char *auth);
char *get_proxy_target() { return m_proxyTarget; };
+ char *get_session_str() { return m_session_str; };
void set_max_clients(int m) { m_max_clients = m; };
+ void set_client_idletime (int t) { m_client_idletime = (t > 1) ? t : 600; };
+ void set_target_idletime (int t) { m_target_idletime = (t > 1) ? t : 600; };
+ int get_target_idletime () { return m_target_idletime; }
+ int set_config(const char *name);
+ int reconfig() { m_reconfig_flag = 1; }
+ int send_to_client(Z_APDU *apdu);
};
projects / yazpp-moved-to-github.git / blobdiff