1 /* This file is part of the YAZ toolkit.
2 * Copyright (C) 1995-2013 Index Data.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are met:
7 * * Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * * Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * * Neither the name of Index Data nor the names of its contributors
13 * may be used to endorse or promote products derived from this
14 * software without specific prior written permission.
16 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND ANY
17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL THE REGENTS AND CONTRIBUTORS BE LIABLE FOR ANY
20 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
23 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 * \brief Header for GFS
32 * This header includes all public definitions for the
33 * Generic Frontend Server (GFS).
39 #include <yaz/yconfig.h>
40 #include <yaz/proto.h>
42 #include <yaz/oid_db.h>
46 typedef struct association *bend_association;
48 /** \brief Information for Z39.50/SRU search handler
50 This structure is passed to the search handler. Some members
51 are read-only (input), some are read-write (input and ouput),
52 and others are write-only.
55 char *setname; /**< result set ID (input) */
56 int replace_set; /**< replace set indicator (input) */
57 int num_bases; /**< number of databases (input) */
58 char **basenames; /**< databases to search (input) */
59 Z_ReferenceId *referenceId;/**< reference ID (input) */
60 Z_Query *query; /**< query structure (input) */
61 ODR stream; /**< encode stream (input) */
62 ODR decode; /**< decode stream (input) */
63 ODR print; /**< print stream (input) */
65 bend_association association; /**< GFS association / session (input) */
66 Odr_int hits; /**< hits (output) */
67 int errcode; /**< Diagnostic code / 0 for no error (output) */
68 char *errstring; /**< Additional info (output) */
69 Z_OtherInformation *search_info; /**< extra search info result (output) */
70 char *srw_sortKeys; /**< SRU sortKeys info (input) */
71 char *srw_setname; /**< SRU generated resultsetID (output) */
72 int *srw_setnameIdleTime; /**< SRU result set idle time (output) */
73 int estimated_hit_count; /**< 1=estimated hits; 0=exact (output) */
74 int partial_resultset; /**< 1=partial results; 0=full (output)*/
75 Z_SRW_extra_arg *extra_args; /**< SRU extra request parameters (input) */
76 char *extra_response_data; /**< SRW extra XML response (output) */
77 Z_OtherInformation *search_input; /**< extra search info request (input) */
78 Odr_int present_number; /**< piggyback present number (>0) (input) */
81 /** \brief Information for present handler. Does not replace bend_fetch. */
83 char *setname; /**< result set ID (input) */
84 int start; /**< range start, starting from 1 (input) */
85 int number; /**< number of records to fetch (input) */
86 Odr_oid *format; /**< record syntax OID (input) */
87 Z_ReferenceId *referenceId;/**< reference ID (input) */
88 Z_RecordComposition *comp; /**< Formatting instructions (input) */
89 ODR stream; /**< encoding stream (input) */
90 ODR print; /**< printing stream (input) */
91 bend_association association; /**< GFS association / session (input) */
93 int errcode; /**< Diagnostic code / 0 for no error (output) */
94 char *errstring; /**< Additional info (output) */
97 /** \brief Information for fetch record handler */
98 typedef struct bend_fetch_rr {
99 char *setname; /**< result set ID (input) */
100 int number; /**< record position (1,2,etc) (input) */
101 Z_ReferenceId *referenceId;/**< reference ID (input) */
102 Odr_oid *request_format; /**< record syntax OID (input) */
103 Z_RecordComposition *comp; /**< Formatting instructions (input) */
104 ODR stream; /**< encoding stream (input) */
105 ODR print; /**< printing stream (input) */
107 char *basename; /**< name of database for record (output) */
108 int len; /**< record length or -1 if structured (output)*/
109 char *record; /**< record buffer (output) */
110 int last_in_set; /**< 1=last in set; 0=not last (output) */
111 Odr_oid *output_format; /**< record syntax OIT (output) */
112 int errcode; /**< Diagnostic code / 0 for no error (output) */
113 char *errstring; /**< Additional info (output) */
114 int surrogate_flag; /**< 1=surrogate diagnostic(SD); 0=NSD (output)*/
115 char *schema; /**< string record schema (input/output) */
118 /** \brief Information for scan entry */
120 char *term; /**< the returned scan term (output) */
121 Odr_int occurrences;/**< >=hits or -1 if error (output) */
122 int errcode; /**< Bib-1 diagnostic; only when occur = -1 (output) */
123 char *errstring; /**< Additional string (output) */
128 BEND_SCAN_SUCCESS, /**< ok */
129 BEND_SCAN_PARTIAL /**< not all entries could be found */
132 /** \brief Information for SRU / Z39.50 scan handler */
133 typedef struct bend_scan_rr {
134 int num_bases; /**< number of databases (input) */
135 char **basenames; /**< databases to scan (input) */
136 Odr_oid *attributeset; /**< attribute-set for term (input) */
137 Z_ReferenceId *referenceId; /**< reference ID (input) */
138 Z_AttributesPlusTerm *term; /**< start term (input) */
139 ODR stream; /**< encoding stream (input) */
140 ODR print; /**< printing stream (input) */
142 int *step_size; /**< step size */
143 int term_position; /**< desired index of term in result list/returned */
144 int num_entries; /**< number of entries requested/returned */
146 /* scan term entries. The called handler does not have
147 to allocate this. Size of entries is num_entries (see above) */
148 struct scan_entry *entries;
149 bend_scan_status status;
152 char *scanClause; /**< CQL scan clause */
153 char *setname; /**< Scan in result set (NULL if omitted) */
156 /** \brief Information for SRU record update handler */
157 typedef struct bend_update_rr {
158 int num_bases; /**< number of databases (input) */
159 char **basenames; /**< databases to update (input) */
160 Z_ReferenceId *referenceId; /**< reference ID (input) */
161 ODR stream; /**< encoding stream (input) */
162 ODR print; /**< printing stream (input) */
164 char *operation_status;
166 Z_SRW_recordVersion *record_versions;
168 char *record_packing;
171 char *extra_record_data;
172 char *extra_request_data;
173 char *extra_response_data;
179 /** \brief Information for Z39.50 delete result set handler */
180 typedef struct bend_delete_rr {
184 Z_ReferenceId *referenceId;
185 int delete_status; /**< status for the whole operation */
186 int *statuses; /**< status each set - indexed as setnames */
191 /** \brief Information for Z39.50 sort handler */
192 typedef struct bend_sort_rr
194 int num_input_setnames;
195 char **input_setnames;
196 char *output_setname;
197 Z_SortKeySpecList *sort_sequence;
200 Z_ReferenceId *referenceId;
207 /** \brief Information for Z39.50 extended services handler */
208 typedef struct bend_esrequest_rr
211 Z_ExtendedServicesRequest *esr;
213 ODR stream; /* encoding stream */
214 ODR decode; /* decoding stream */
215 ODR print; /* printing stream */
216 Z_ReferenceId *referenceId;/* reference ID */
217 bend_association association;
218 int errcode; /* 0==success, -1==accepted, >0 = failure */
219 char *errstring; /* system error string or NULL */
220 Z_TaskPackage *taskPackage;
223 /** \brief Information for Z39.50 segment handler */
224 typedef struct bend_segment_rr {
229 bend_association association;
232 /** \brief Information for SRU Explain handler */
240 void *server_node_ptr;
243 /** \brief Information for the Init handler
245 This includes both request
246 information (to be read) and response information which should be
247 set by the bend_init handler
249 typedef struct bend_initrequest
251 /** \brief user/name/password to be read */
252 Z_IdAuthentication *auth;
253 /** \brief encoding stream (for results) */
255 /** \brief printing stream */
257 /** \brief decoding stream (use stream for results) */
259 /** \brief reference ID */
260 Z_ReferenceId *referenceId;
261 /** \brief peer address of client */
264 /** \brief character set and language negotiation
266 see include/yaz/z-charneg.h
268 Z_CharSetandLanguageNegotiation *charneg_request;
270 /** \brief character negotiation response */
271 Z_External *charneg_response;
273 /** \brief character set (encoding) for query terms
275 This is NULL by default. It should be set to the native character
276 set that the backend assumes for query terms */
279 /** \brief whehter query_charset also applies to recors
281 Is 0 (No) by default. Set to 1 (yes) if records is in the same
282 character set as queries. If in doubt, use 0 (No).
284 int records_in_same_charset;
286 char *implementation_id;
287 char *implementation_name;
288 char *implementation_version;
290 /** \brief Z39.50 sort handler */
291 int (*bend_sort)(void *handle, bend_sort_rr *rr);
292 /** \brief SRU/Z39.50 search handler */
293 int (*bend_search)(void *handle, bend_search_rr *rr);
294 /** \brief SRU/Z39.50 fetch handler */
295 int (*bend_fetch)(void *handle, bend_fetch_rr *rr);
296 /** \brief SRU/Z39.50 present handler */
297 int (*bend_present)(void *handle, bend_present_rr *rr);
298 /** \brief Z39.50 extended services handler */
299 int (*bend_esrequest) (void *handle, bend_esrequest_rr *rr);
300 /** \brief Z39.50 delete result set handler */
301 int (*bend_delete)(void *handle, bend_delete_rr *rr);
302 /** \brief Z39.50 scan handler */
303 int (*bend_scan)(void *handle, bend_scan_rr *rr);
304 /** \brief Z39.50 segment facility handler */
305 int (*bend_segment)(void *handle, bend_segment_rr *rr);
306 /** \brief SRU explain handler */
307 int (*bend_explain)(void *handle, bend_explain_rr *rr);
308 /** \brief SRU scan handler */
309 int (*bend_srw_scan)(void *handle, bend_scan_rr *rr);
310 /** \brief SRU record update handler */
311 int (*bend_srw_update)(void *handle, bend_update_rr *rr);
313 /** \brief whether named result sets are supported (0=disable, 1=enable) */
314 int named_result_sets;
317 /** \brief result for init handler (must be filled by handler) */
318 typedef struct bend_initresult
320 int errcode; /* 0==OK */
321 char *errstring; /* system error string or NULL */
322 void *handle; /* private handle to the backend module */
325 /** \brief control block for server */
326 typedef struct statserv_options_block
328 int dynamic; /**< fork on incoming requests */
329 int threads; /**< use threads */
330 int one_shot; /**< one session then exit(1) */
331 char apdufile[ODR_MAXNAME+1]; /**< file for pretty-printed PDUs */
332 char logfile[ODR_MAXNAME+1]; /**< file for diagnostic output */
333 char default_listen[1024]; /**< 0 == no default listen */
334 enum oid_proto default_proto; /**< PROTO_SR or PROTO_Z3950 */
335 int idle_timeout; /**< how many minutes to wait before closing */
336 int maxrecordsize; /**< maximum value for negotiation */
337 char configname[ODR_MAXNAME+1]; /**< given to the backend in bend_init */
338 char setuid[ODR_MAXNAME+1]; /**< setuid to this user after binding */
339 void (*bend_start)(struct statserv_options_block *p);
340 void (*bend_stop)(struct statserv_options_block *p);
341 int (*options_func)(int argc, char **argv);
342 int (*check_ip)(void *cd, const char *addr, int len, int type);
343 char daemon_name[128];
344 int inetd; /**< Do we use the inet deamon or not */
346 void *handle; /**< Handle */
347 bend_initresult *(*bend_init)(bend_initrequest *r);
348 void (*bend_close)(void *handle);
350 /* We only have these members for the windows version */
351 /* They seemed a bit large to have them there in general */
352 char service_name[128]; /**< NT Service Name */
353 char app_name[128]; /**< Application Name */
354 char service_dependencies[128]; /**< The services we are dependent on */
355 char service_display_name[128]; /**< The service display name */
357 struct bend_soap_handler *soap_handlers;
358 char pid_fname[128]; /**< pid fname */
359 int background; /**< auto daemon */
360 char cert_fname[128]; /**< SSL certificate fname */
361 char xml_config[128]; /**< XML config filename */
362 int keepalive; /**< keep alive if HTTP 1.1 (default: 1) */
363 } statserv_options_block;
365 YAZ_EXPORT int statserv_main(
366 int argc, char **argv,
367 bend_initresult *(*bend_init)(bend_initrequest *r),
368 void (*bend_close)(void *handle));
370 YAZ_EXPORT statserv_options_block *statserv_getcontrol(void);
371 YAZ_EXPORT void statserv_setcontrol(statserv_options_block *block);
372 YAZ_EXPORT int check_ip_tcpd(void *cd, const char *addr, int len, int type);
374 YAZ_EXPORT int bend_assoc_is_alive(bend_association assoc);
382 * c-file-style: "Stroustrup"
383 * indent-tabs-mode: nil
385 * vim: shiftwidth=4 tabstop=8 expandtab