1 /* $Id: proxyp.h,v 1.4 2005-05-04 08:31:44 adam Exp $
2 Copyright (c) 1998-2005, Index Data.
4 This file is part of the yaz-proxy.
6 YAZ proxy is free software; you can redistribute it and/or modify it under
7 the terms of the GNU General Public License as published by the Free
8 Software Foundation; either version 2, or (at your option) any later
11 YAZ proxy is distributed in the hope that it will be useful, but WITHOUT ANY
12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 You should have received a copy of the GNU General Public License
17 along with YAZ proxy; see the file LICENSE. If not, write to the
18 Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
23 #include <libxml/parser.h>
24 #include <libxml/tree.h>
25 #include <libxml/xinclude.h>
26 #include <libxslt/xsltutils.h>
27 #include <libxslt/transform.h>
31 #include <objectlist.h>
34 #include <yazproxy/proxy.h>
35 #include <yazproxy/module.h>
37 struct Yaz_RecordCache_Entry;
44 int convert(const char *stage1, const char *stage2,
45 const char *input, int input_len,
46 char **output, int *output_len);
55 class Yaz_CharsetConverter {
57 Yaz_CharsetConverter();
58 ~Yaz_CharsetConverter();
59 void set_target_query_charset(const char *s);
60 void set_client_query_charset(const char *org);
61 void convert_type_1(Z_RPNQuery *q, ODR o);
63 void convert_type_1(char *buf_in, int len_in,
64 char **buf_out, int *len_out,
66 void convert_type_1(Z_Term *q, ODR o);
67 void convert_type_1(Z_RPNStructure *q, ODR o);
68 void convert_type_1(Z_Operand *q, ODR o);
69 char *m_target_query_charset;
70 char *m_client_query_charset;
75 class Yaz_ProxyConfig {
79 int read_xml(const char *fname);
81 int get_target_no(int no,
90 int *keepalive_limit_bw,
91 int *keepalive_limit_pdu,
94 const char **authentication,
95 const char **negotiation_charset,
96 const char **negotiation_lang,
97 const char **query_charset);
99 void get_generic_info(int *log_mask, int *max_clients);
101 void get_target_info(const char *name, const char **url,
102 int *limit_bw, int *limit_pdu, int *limit_req,
103 int *target_idletime, int *client_idletime,
105 int *keepalive_limit_bw, int *keepalive_limit_pdu,
107 const char **cql2rpn,
108 const char **negotiation_charset,
109 const char **negotiation_lang,
110 const char **query_charset);
112 const char *check_mime_type(const char *path);
113 int check_query(ODR odr, const char *name, Z_Query *query, char **addinfo);
114 int check_syntax(ODR odr, const char *name,
115 Odr_oid *syntax, Z_RecordComposition *comp,
116 char **addinfo, char **stylesheet, char **schema,
117 char **backend_type, char **backend_charset,
118 char **usemarcon_ini_stage1, char **usemarcon_ini_stage2);
120 void target_authentication(const char *name,
124 int client_authentication(const char *name,
125 const char *user, const char *group,
126 const char *password);
127 char *get_explain_doc(ODR odr, const char *name, const char *db,
129 const char *get_explain_name(const char *db, const char **backend_db);
131 void operator=(const Yaz_ProxyConfig &conf);
132 class Yaz_ProxyConfigP *m_cp;
135 class Yaz_RecordCache {
139 void add (ODR o, Z_NamePlusRecordList *npr, int start, int hits);
141 int lookup (ODR o, Z_NamePlusRecordList **npr, int start, int num,
142 Odr_oid *syntax, Z_RecordComposition *comp);
145 void copy_searchRequest(Z_SearchRequest *sr);
146 void copy_presentRequest(Z_PresentRequest *pr);
147 void set_max_size(int sz);
150 Yaz_RecordCache_Entry *m_entries;
151 Z_SearchRequest *m_searchRequest;
152 Z_PresentRequest *m_presentRequest;
153 int match (Yaz_RecordCache_Entry *entry,
154 Odr_oid *syntax, int offset,
155 Z_RecordComposition *comp);
159 class Yaz_ProxyClient : public Yaz_Z_Assoc {
160 friend class Yaz_Proxy;
161 Yaz_ProxyClient(IYaz_PDU_Observable *the_PDU_Observable,
164 void recv_GDU(Z_GDU *apdu, int len);
165 void recv_Z_PDU(Z_APDU *apdu, int len);
166 void recv_HTTP_response(Z_HTTP_Response *apdu, int len);
167 IYaz_PDU_Observer* sessionNotify
168 (IYaz_PDU_Observable *the_PDU_Observable, int fd);
172 void timeoutNotify();
173 void connectNotify();
174 int send_to_target(Z_APDU *apdu);
175 const char *get_session_str();
177 Yaz_ProxyClient *m_next;
178 Yaz_ProxyClient **m_prev;
180 Yaz_Z_Query *m_last_query;
181 Yaz_Z_Databases m_last_databases;
182 char *m_last_resultSetId;
184 int m_last_resultCount;
188 int m_resultSetStartPoint;
193 Z_APDU *m_initResponse;
194 Z_Options *m_initResponse_options;
195 Z_ProtocolVersion *m_initResponse_version;
196 int m_initResponse_preferredMessageSize;
197 int m_initResponse_maximumRecordSize;
198 Yaz_RecordCache m_cache;
199 void pre_init_client();
200 int m_target_idletime;