8d027a729cafb893cf1d901cc10a4c82f892de11
[idzebra-moved-to-github.git] / index / zebrasrv.c
1 /* This file is part of the Zebra server.
2    Copyright (C) 1995-2008 Index Data
3
4 Zebra is free software; you can redistribute it and/or modify it under
5 the terms of the GNU General Public License as published by the Free
6 Software Foundation; either version 2, or (at your option) any later
7 version.
8
9 Zebra is distributed in the hope that it will be useful, but WITHOUT ANY
10 WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 for more details.
13
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
17
18 */
19
20 #include <assert.h>
21 #include <stdio.h>
22 #include <stdlib.h>
23 #include <fcntl.h>
24 #ifdef WIN32
25 #include <io.h>
26 #include <process.h>
27 #include <sys/locking.h>
28 #endif
29 #if HAVE_UNISTD_H
30 #include <unistd.h>
31 #endif
32
33 #include <errno.h>
34 #include <yaz/log.h>
35 #include <yaz/ill.h>
36 #include <yaz/yaz-util.h>
37 #include <yaz/diagbib1.h>
38
39 #include <sys/types.h>
40
41 #include <yaz/backend.h>
42 #include <yaz/charneg.h>
43 #include <idzebra/api.h>
44
45 static int bend_sort(void *handle, bend_sort_rr *rr);
46 static int bend_delete(void *handle, bend_delete_rr *rr);
47 static int bend_esrequest(void *handle, bend_esrequest_rr *rr);
48 static int bend_segment(void *handle, bend_segment_rr *rr);
49 static int bend_search(void *handle, bend_search_rr *r);
50 static int bend_fetch(void *handle, bend_fetch_rr *r);
51 static int bend_scan(void *handle, bend_scan_rr *r);
52
53 bend_initresult *bend_init(bend_initrequest *q)
54 {
55     bend_initresult *r = (bend_initresult *)
56         odr_malloc(q->stream, sizeof(*r));
57     ZebraHandle zh;
58     struct statserv_options_block *sob;
59     char *user = NULL;
60     char *passwd = NULL;
61     char version_str[16];
62
63     r->errcode = 0;
64     r->errstring = 0;
65     q->bend_sort = bend_sort;
66     q->bend_delete = bend_delete;
67     q->bend_esrequest = bend_esrequest;
68     q->bend_segment = bend_segment;
69     q->bend_search = bend_search;
70     q->bend_fetch = bend_fetch;
71     q->bend_scan = bend_scan;
72
73     zebra_get_version(version_str, 0);
74
75     q->implementation_name = "Zebra Information Server";
76     q->implementation_version = odr_strdup(q->stream, version_str);
77
78     yaz_log(YLOG_DEBUG, "bend_init");
79
80     sob = statserv_getcontrol();
81     if (!(zh = zebra_open(sob->handle, 0)))
82     {
83         yaz_log(YLOG_WARN, "Failed to read config `%s'", sob->configname);
84         r->errcode = YAZ_BIB1_PERMANENT_SYSTEM_ERROR;
85         return r;
86     }
87     r->handle = zh;
88
89     q->query_charset = odr_strdup(q->stream, zebra_get_encoding(zh));
90     if (q->auth)
91     {
92         if (q->auth->which == Z_IdAuthentication_open)
93         {
94             char *openpass = xstrdup(q->auth->u.open);
95             char *cp = strchr(openpass, '/');
96             if (cp)
97             {
98                 *cp = '\0';
99                 user = nmem_strdup(odr_getmem(q->stream), openpass);
100                 passwd = nmem_strdup(odr_getmem(q->stream), cp+1);
101             }
102             xfree(openpass);
103         }
104         else if (q->auth->which == Z_IdAuthentication_idPass)
105         {
106             Z_IdPass *idPass = q->auth->u.idPass;
107
108             user = idPass->userId;
109             passwd = idPass->password;
110         }
111     }
112     if (zebra_auth(zh, user, passwd) != ZEBRA_OK)
113     {
114         r->errcode = YAZ_BIB1_INIT_AC_BAD_USERID_AND_OR_PASSWORD;
115         r->errstring = user;
116         return r;
117     }
118     if (q->charneg_request) /* characater set and language negotiation? */
119     {
120         char **charsets = 0;
121         int num_charsets;
122         char **langs = 0;
123         int num_langs = 0;
124         int selected = 0;
125         int i;
126         NMEM nmem = nmem_create();
127
128         yaz_get_proposal_charneg(nmem, q->charneg_request,
129                                  &charsets, &num_charsets,
130                                  &langs, &num_langs, &selected);
131         
132         for (i = 0; i < num_charsets; i++)
133         {
134             const char *right_name = "";
135             /*
136              * FIXME! It is like rudiment :-))
137              * We have to support this short names of character sets,
138              * because a lot servers in Russia to use own in during
139              * character set and language negotiation still.
140              */
141             
142             if (!yaz_matchstr(charsets[i], "win")) {
143                 right_name = "WINDOWS-1251";
144             } else if (!yaz_matchstr(charsets[i], "koi")) {
145                 right_name = "KOI8-R";
146             } else if (!yaz_matchstr(charsets[i], "iso")) {
147                 right_name = "ISO-8859-5";
148             } else if (!yaz_matchstr(charsets[i], "dos")) {
149                 right_name = "CP866";
150             } else if (!yaz_matchstr(charsets[i], "uni")) {
151                 right_name = "UTF-8";
152             } else {
153                 right_name = charsets[i];
154             }
155             if (odr_set_charset(q->decode, "UTF-8", right_name) == 0)
156             {
157                 yaz_log(YLOG_LOG, "charset %d %s (proper name %s): OK", i,
158                         charsets[i], right_name);
159                 odr_set_charset(q->stream, right_name, "UTF-8");
160                 if (selected)
161                     zebra_record_encoding(zh, right_name);
162                 zebra_octet_term_encoding(zh, right_name);
163                 q->charneg_response =
164                     yaz_set_response_charneg(q->stream, charsets[i],
165                                              0, selected);
166                 break;
167             } else {
168                 yaz_log(YLOG_LOG, "charset %d %s (proper name %s): unsupported", i,
169                         charsets[i], right_name);
170             }
171         }
172         nmem_destroy(nmem);
173     }
174     return r;
175 }
176
177 static void search_terms(ZebraHandle zh, bend_search_rr *r)
178 {
179     int no_terms;
180     int i;
181     int type = Z_Term_general;
182     struct Z_External *ext;
183     Z_SearchInfoReport *sr;
184
185     zebra_result_set_term_no(zh, r->setname, &no_terms);
186     if (!no_terms)
187         return;
188
189     r->search_info = odr_malloc(r->stream, sizeof(*r->search_info));
190
191     r->search_info->num_elements = 1;
192     r->search_info->list =
193         odr_malloc(r->stream, sizeof(*r->search_info->list));
194     r->search_info->list[0] =
195         odr_malloc(r->stream, sizeof(**r->search_info->list));
196     r->search_info->list[0]->category = 0;
197     r->search_info->list[0]->which = Z_OtherInfo_externallyDefinedInfo;
198     ext = odr_malloc(r->stream, sizeof(*ext));
199     r->search_info->list[0]->information.externallyDefinedInfo = ext;
200     ext->direct_reference = odr_oiddup(r->stream,
201                                        yaz_oid_userinfo_searchresult_1);
202     ext->indirect_reference = 0;
203     ext->descriptor = 0;
204     ext->which = Z_External_searchResult1;
205     sr = odr_malloc(r->stream, sizeof(Z_SearchInfoReport));
206     ext->u.searchResult1 = sr;
207     sr->num = no_terms;
208     sr->elements = odr_malloc(r->stream, sr->num *
209                                sizeof(*sr->elements));
210     for (i = 0; i<no_terms; i++)
211     {
212         Z_SearchInfoReport_s *se;
213         Z_Term *term;
214         zint count;
215         int approx;
216         char outbuf[1024];
217         size_t len = sizeof(outbuf);
218         const char *term_ref_id = 0;
219
220         zebra_result_set_term_info(zh, r->setname, i,
221                                    &count, &approx, outbuf, &len,
222                                    &term_ref_id);
223         se = sr->elements[i] = odr_malloc(r->stream, sizeof(**sr->elements));
224         se->subqueryId = term_ref_id ? 
225             odr_strdup(r->stream, term_ref_id) : 0;
226             
227         se->fullQuery = odr_intdup(r->stream, 0);
228         se->subqueryExpression = 
229             odr_malloc(r->stream, sizeof(Z_QueryExpression));
230         se->subqueryExpression->which = 
231             Z_QueryExpression_term;
232         se->subqueryExpression->u.term =
233             odr_malloc(r->stream, sizeof(Z_QueryExpressionTerm));
234         term = odr_malloc(r->stream, sizeof(Z_Term));
235         se->subqueryExpression->u.term->queryTerm = term;
236         switch (type)
237         {
238         case Z_Term_characterString:
239             term->which = Z_Term_characterString;
240             term->u.characterString = odr_strdup(r->stream, outbuf);
241             break;
242         case Z_Term_general:
243             term->which = Z_Term_general;
244             term->u.general = odr_malloc(r->stream, sizeof(*term->u.general));
245             term->u.general->size = term->u.general->len = len;
246             term->u.general->buf = odr_malloc(r->stream, len);
247             memcpy(term->u.general->buf, outbuf, len);
248             break;
249         default:
250             term->which = Z_Term_general;
251             term->u.null = odr_nullval();
252         }
253         se->subqueryExpression->u.term->termComment = 0;
254         se->subqueryInterpretation = 0;
255         se->subqueryRecommendation = 0;
256         if (count > 2147483646)
257             count = 2147483647;
258         se->subqueryCount = odr_intdup(r->stream, CAST_ZINT_TO_INT(count));
259         se->subqueryWeight = 0;
260         se->resultsByDB = 0;
261     }
262 }
263
264
265 static int break_handler(void *client_data)
266 {
267     bend_association assoc =(bend_association) client_data;    
268     if (!bend_assoc_is_alive(assoc))
269         return 1;
270     return 0;
271 }
272
273 int bend_search(void *handle, bend_search_rr *r)
274 {
275     ZebraHandle zh = (ZebraHandle) handle;
276     zint zhits = 0;
277     ZEBRA_RES res;
278
279     res = zebra_select_databases(zh, r->num_bases,
280                                   (const char **) r->basenames);
281     if (res != ZEBRA_OK)
282     {
283         zebra_result(zh, &r->errcode, &r->errstring);
284         return 0;
285     }
286     zebra_set_break_handler(zh, break_handler, r->association);
287     yaz_log(YLOG_DEBUG, "ResultSet '%s'", r->setname);
288     switch (r->query->which)
289     {
290     case Z_Query_type_1: case Z_Query_type_101:
291         res = zebra_search_RPN_x(zh, r->stream, r->query->u.type_1,
292                                  r->setname, &zhits,
293                                  &r->estimated_hit_count,
294                                  &r->partial_resultset);
295         if (res != ZEBRA_OK)
296             zebra_result(zh, &r->errcode, &r->errstring);
297         else
298         {
299             if (zhits > 2147483646)
300                 zhits = 2147483647;
301             r->hits = CAST_ZINT_TO_INT(zhits);
302             search_terms(zh, r);
303         }
304         break;
305     case Z_Query_type_2:
306         r->errcode = YAZ_BIB1_QUERY_TYPE_UNSUPP;
307         r->errstring = "type-2";
308         break;
309     default:
310         r->errcode = YAZ_BIB1_QUERY_TYPE_UNSUPP;
311     }
312     zebra_set_break_handler(zh, 0, 0);
313     return 0;
314 }
315
316
317 int bend_fetch(void *handle, bend_fetch_rr *r)
318 {
319     ZebraHandle zh = (ZebraHandle) handle;
320     ZebraRetrievalRecord retrievalRecord;
321     ZEBRA_RES res;
322
323     retrievalRecord.position = r->number;
324     
325     r->last_in_set = 0;
326     res = zebra_records_retrieve(zh, r->stream, r->setname, r->comp,
327                                   r->request_format, 1, &retrievalRecord);
328     if (res != ZEBRA_OK)
329     {
330         /* non-surrogate diagnostic */
331         zebra_result(zh, &r->errcode, &r->errstring);
332     }
333     else if (retrievalRecord.errCode)
334     {
335         /* surrogate diagnostic (diagnostic per record) */
336         r->surrogate_flag = 1;
337         r->errcode = retrievalRecord.errCode;
338         r->errstring = retrievalRecord.errString;
339         r->basename = retrievalRecord.base;
340     }
341     else
342     {
343         r->basename = retrievalRecord.base;
344         r->record = retrievalRecord.buf;
345         r->len = retrievalRecord.len;
346         r->output_format = odr_oiddup(r->stream, retrievalRecord.format);
347     }
348     return 0;
349 }
350
351 static int bend_scan(void *handle, bend_scan_rr *r)
352 {
353     ZebraScanEntry *entries;
354     ZebraHandle zh = (ZebraHandle) handle;
355     int is_partial, i;
356     ZEBRA_RES res;
357
358     res = zebra_select_databases(zh, r->num_bases, 
359                                  (const char **) r->basenames);
360     if (res != ZEBRA_OK)
361     {
362         zebra_result(zh, &r->errcode, &r->errstring);
363         return 0;
364     }
365     if (r->step_size != 0 && *r->step_size != 0) {
366         r->errcode = YAZ_BIB1_ONLY_ZERO_STEP_SIZE_SUPPORTED_FOR_SCAN;
367         r->errstring = 0;
368         return 0;
369     }
370     res = zebra_scan(zh, r->stream, r->term,
371                      r->attributeset,
372                      &r->term_position,
373                      &r->num_entries, &entries, &is_partial, 
374                      0 /* setname */);
375     if (res == ZEBRA_OK)
376     {
377         if (is_partial)
378             r->status = BEND_SCAN_PARTIAL;
379         else
380             r->status = BEND_SCAN_SUCCESS;
381         for (i = 0; i < r->num_entries; i++)
382         {
383             r->entries[i].term = entries[i].term;
384             r->entries[i].display_term = entries[i].display_term;
385             r->entries[i].occurrences =
386                 CAST_ZINT_TO_INT(entries[i].occurrences);
387         }
388     }
389     else
390     {
391         r->status = BEND_SCAN_PARTIAL;
392         zebra_result(zh, &r->errcode, &r->errstring);
393     }
394     return 0;
395 }
396
397 void bend_close(void *handle)
398 {
399     zebra_close((ZebraHandle) handle);
400     xmalloc_trav("bend_close");
401 }
402
403 int bend_sort(void *handle, bend_sort_rr *rr)
404 {
405     ZebraHandle zh = (ZebraHandle) handle;
406
407     if (zebra_sort(zh, rr->stream,
408                     rr->num_input_setnames, (const char **) rr->input_setnames,
409                     rr->output_setname, rr->sort_sequence, &rr->sort_status)
410         != ZEBRA_OK)
411         zebra_result(zh, &rr->errcode, &rr->errstring);
412     return 0;
413 }
414
415 int bend_delete(void *handle, bend_delete_rr *rr)
416 {
417     ZebraHandle zh = (ZebraHandle) handle;
418
419     rr->delete_status = zebra_deleteResultSet(zh, rr->function,
420                                               rr->num_setnames, rr->setnames,
421                                               rr->statuses);
422     return 0;
423 }
424
425 static void es_admin_request(bend_esrequest_rr *rr, ZebraHandle zh, Z_AdminEsRequest *r)
426 {
427     ZEBRA_RES res = ZEBRA_OK;
428     if (r->toKeep->databaseName)
429     {
430         yaz_log(YLOG_LOG, "adm request database %s", r->toKeep->databaseName);
431     }
432     switch (r->toKeep->which)
433     {
434     case Z_ESAdminOriginPartToKeep_reIndex:
435         yaz_log(YLOG_LOG, "adm-reindex");
436         rr->errcode = YAZ_BIB1_ES_IMMEDIATE_EXECUTION_FAILED;
437         rr->errstring = "adm-reindex not implemented yet";
438         break;
439     case Z_ESAdminOriginPartToKeep_truncate:
440         rr->errcode = YAZ_BIB1_ES_IMMEDIATE_EXECUTION_FAILED;
441         rr->errstring = "adm-reindex not implemented yet";
442         yaz_log(YLOG_LOG, "adm-truncate");
443         break;
444     case Z_ESAdminOriginPartToKeep_drop:
445         yaz_log(YLOG_LOG, "adm-drop");
446         res = zebra_drop_database(zh, r->toKeep->databaseName);
447         break;
448     case Z_ESAdminOriginPartToKeep_create:
449         yaz_log(YLOG_LOG, "adm-create %s", r->toKeep->databaseName);
450         res = zebra_create_database(zh, r->toKeep->databaseName);
451         break;
452     case Z_ESAdminOriginPartToKeep_import:
453         yaz_log(YLOG_LOG, "adm-import");
454         res = zebra_admin_import_begin(zh, r->toKeep->databaseName,
455                                         r->toKeep->u.import->recordType);
456         break;
457     case Z_ESAdminOriginPartToKeep_refresh:
458         yaz_log(YLOG_LOG, "adm-refresh");
459         break;
460     case Z_ESAdminOriginPartToKeep_commit:
461         yaz_log(YLOG_LOG, "adm-commit");
462         if (r->toKeep->databaseName)
463         {
464             if (zebra_select_database(zh, r->toKeep->databaseName) !=
465                 ZEBRA_OK)
466                 yaz_log(YLOG_WARN, "zebra_select_database failed in "
467                         "adm-commit");
468         }
469         zebra_commit(zh);
470         break;
471     case Z_ESAdminOriginPartToKeep_shutdown:
472         yaz_log(YLOG_LOG, "shutdown");
473         res = zebra_admin_shutdown(zh);
474         break;
475     case Z_ESAdminOriginPartToKeep_start:
476         yaz_log(YLOG_LOG, "start");
477         zebra_admin_start(zh);
478         break;
479     default:
480         yaz_log(YLOG_LOG, "unknown admin");
481         rr->errcode = YAZ_BIB1_ES_IMMEDIATE_EXECUTION_FAILED;
482         rr->errstring = "adm-reindex not implemented yet";
483     }
484     if (res != ZEBRA_OK)
485         zebra_result(zh, &rr->errcode, &rr->errstring);
486 }
487
488 static void es_admin(bend_esrequest_rr *rr, ZebraHandle zh, Z_Admin *r)
489 {
490     switch (r->which)
491     {
492     case Z_Admin_esRequest:
493         es_admin_request(rr, zh, r->u.esRequest);
494         return;
495     default:
496         break;
497     }
498         yaz_log(YLOG_WARN, "adm taskpackage (unhandled)");
499     rr->errcode = YAZ_BIB1_ES_IMMEDIATE_EXECUTION_FAILED;
500     rr->errstring = "adm-task package (unhandled)";
501 }
502
503 int bend_segment(void *handle, bend_segment_rr *rr)
504 {
505     ZebraHandle zh = (ZebraHandle) handle;
506     Z_Segment *segment = rr->segment;
507
508     if (segment->num_segmentRecords)
509         zebra_admin_import_segment(zh, rr->segment);
510     else
511         zebra_admin_import_end(zh);
512     return 0;
513 }
514
515 int bend_esrequest(void *handle, bend_esrequest_rr *rr)
516 {
517     ZebraHandle zh = (ZebraHandle) handle;
518     
519     yaz_log(YLOG_LOG, "function: %d", *rr->esr->function);
520     if (rr->esr->packageName)
521         yaz_log(YLOG_LOG, "packagename: %s", rr->esr->packageName);
522     yaz_log(YLOG_LOG, "Waitaction: %d", *rr->esr->waitAction);
523
524     if (!rr->esr->taskSpecificParameters)
525     {
526         yaz_log(YLOG_WARN, "No task specific parameters");
527     }
528     else if (rr->esr->taskSpecificParameters->which == Z_External_ESAdmin)
529     {
530         es_admin(rr, zh, rr->esr->taskSpecificParameters->u.adminService);
531     }
532     else if (rr->esr->taskSpecificParameters->which == Z_External_update)
533     {
534         Z_IUUpdate *up = rr->esr->taskSpecificParameters->u.update;
535         yaz_log(YLOG_LOG, "Received DB Update");
536         if (up->which == Z_IUUpdate_esRequest)
537         {
538             Z_IUUpdateEsRequest *esRequest = up->u.esRequest;
539             Z_IUOriginPartToKeep *toKeep = esRequest->toKeep;
540             Z_IUSuppliedRecords *notToKeep = esRequest->notToKeep;
541             
542             yaz_log(YLOG_LOG, "action");
543             if (toKeep->action)
544             {
545                 switch (*toKeep->action)
546                 {
547                 case Z_IUOriginPartToKeep_recordInsert:
548                     yaz_log(YLOG_LOG, "recordInsert");
549                     break;
550                 case Z_IUOriginPartToKeep_recordReplace:
551                     yaz_log(YLOG_LOG, "recordUpdate");
552                     break;
553                 case Z_IUOriginPartToKeep_recordDelete:
554                     yaz_log(YLOG_LOG, "recordDelete");
555                     break;
556                 case Z_IUOriginPartToKeep_elementUpdate:
557                     yaz_log(YLOG_LOG, "elementUpdate");
558                     break;
559                 case Z_IUOriginPartToKeep_specialUpdate:
560                     yaz_log(YLOG_LOG, "specialUpdate");
561                     break;
562                 case Z_ESAdminOriginPartToKeep_shutdown:
563                     yaz_log(YLOG_LOG, "shutDown");
564                     break;
565                 case Z_ESAdminOriginPartToKeep_start:
566                     yaz_log(YLOG_LOG, "start");
567                     break;
568                 default:
569                     yaz_log(YLOG_LOG, " unknown (%d)", *toKeep->action);
570                 }
571             }
572             if (toKeep->databaseName)
573             {
574                 yaz_log(YLOG_LOG, "database: %s", toKeep->databaseName);
575
576                 if (zebra_select_database(zh, toKeep->databaseName))
577                     return 0;
578             }
579             else
580             {
581                 yaz_log(YLOG_WARN, "no database supplied for ES Update");
582                 rr->errcode =
583                     YAZ_BIB1_ES_MISSING_MANDATORY_PARAMETER_FOR_SPECIFIED_FUNCTION_;
584                 rr->errstring = "database";
585                 return 0;
586             }
587             if (zebra_begin_trans(zh, 1) != ZEBRA_OK)
588             {
589                 zebra_result(zh, &rr->errcode, &rr->errstring);
590             }
591             else
592             {
593                 int i;
594                 for (i = 0; notToKeep && i < notToKeep->num; i++)
595                 {
596                     Z_External *rec = notToKeep->elements[i]->record;
597                     Odr_oct *opaque_recid = 0;
598                     zint *sysno = 0;
599                     zint sysno_tmp;
600
601                     if (notToKeep->elements[i]->u.opaque)
602                     {
603                         switch(notToKeep->elements[i]->which)
604                         {
605                         case Z_IUSuppliedRecords_elem_opaque:
606                             opaque_recid = notToKeep->elements[i]->u.opaque;
607                             break; /* OK, recid already set */
608                         case Z_IUSuppliedRecords_elem_number:
609                             sysno_tmp = *notToKeep->elements[i]->u.number;
610                             sysno = &sysno_tmp;
611                             break;
612                         }
613                     }
614                     if (rec->direct_reference)
615                     {
616                         char oid_name_str[OID_STR_MAX];
617                         const char *oid_name =
618                             yaz_oid_to_string_buf(
619                                 rec->direct_reference,
620                                 0, oid_name_str);
621                         if (oid_name)
622                             yaz_log(YLOG_LOG, "record %d type %s", i,
623                                      oid_name);
624                     }
625                     switch (rec->which)
626                     {
627                     case Z_External_sutrs:
628                         if (rec->u.octet_aligned->len > 170)
629                             yaz_log(YLOG_LOG, "%d bytes:\n%.168s ...",
630                                      rec->u.sutrs->len,
631                                      rec->u.sutrs->buf);
632                         else
633                             yaz_log(YLOG_LOG, "%d bytes:\n%s",
634                                      rec->u.sutrs->len,
635                                      rec->u.sutrs->buf);
636                         break;
637                     case Z_External_octet:
638                         if (rec->u.octet_aligned->len > 170)
639                             yaz_log(YLOG_LOG, "%d bytes:\n%.168s ...",
640                                      rec->u.octet_aligned->len,
641                                      rec->u.octet_aligned->buf);
642                         else
643                             yaz_log(YLOG_LOG, "%d bytes\n%s",
644                                      rec->u.octet_aligned->len,
645                                      rec->u.octet_aligned->buf);
646                     }
647                     if (rec->which == Z_External_octet)
648                     {
649                         enum zebra_recctrl_action_t action = action_update;
650                         char recid_str[256];
651                         const char *match_criteria = 0;
652                         ZEBRA_RES res;
653
654                         if (*toKeep->action ==
655                             Z_IUOriginPartToKeep_recordInsert)
656                             action = action_insert;
657                         else if (*toKeep->action ==
658                             Z_IUOriginPartToKeep_recordReplace)
659                             action = action_replace;
660                         else if (*toKeep->action ==
661                             Z_IUOriginPartToKeep_recordDelete)
662                             action = action_delete;
663                         else if (*toKeep->action ==
664                             Z_IUOriginPartToKeep_specialUpdate)
665                             action = action_update;
666                         else
667                         {
668                             rr->errcode =
669                                 YAZ_BIB1_ES_IMMEDIATE_EXECUTION_FAILED;
670                             rr->errstring = "unsupported ES Update action";
671                             break;
672                         }
673                         
674                         if (opaque_recid)
675                         {
676                             size_t l = opaque_recid->len;
677                             if (l >= sizeof(recid_str))
678                             {
679                                 rr->errcode = YAZ_BIB1_ES_IMMEDIATE_EXECUTION_FAILED;
680                                 rr->errstring = "opaque record ID too large";
681                                 break;
682                             }
683                             memcpy(recid_str, opaque_recid->buf, l);
684                             recid_str[l] = '\0';
685                             match_criteria = recid_str;
686                         }
687                         res = zebra_update_record(
688                             zh, action,
689                             0, /* recordType */
690                             sysno, match_criteria, 0, /* fname */
691                             (const char *) rec->u.octet_aligned->buf,
692                             rec->u.octet_aligned->len);
693                         if (res == ZEBRA_FAIL)
694                         {
695                             rr->errcode =
696                                 YAZ_BIB1_ES_IMMEDIATE_EXECUTION_FAILED;
697                             rr->errstring = "update_record failed";
698                         }
699                     }
700                 }
701                 if (zebra_end_trans(zh) != ZEBRA_OK)
702                 {
703                     yaz_log(YLOG_WARN, "zebra_end_trans failed for"
704                             " extended service operation");
705                 }
706             }
707         }
708     }
709     else
710     {
711         yaz_log(YLOG_WARN, "Unknown Extended Service(%d)",
712                  rr->esr->taskSpecificParameters->which);
713         rr->errcode = YAZ_BIB1_ES_EXTENDED_SERVICE_TYPE_UNSUPP;
714         
715     }
716     return 0;
717 }
718
719 static void bend_start(struct statserv_options_block *sob)
720 {
721     Res default_res = res_open(0, 0);
722
723     if (sob->handle)
724         zebra_stop((ZebraService) sob->handle);
725     res_set(default_res, "profilePath", DEFAULT_PROFILE_PATH);
726     res_set(default_res, "modulePath", DEFAULT_MODULE_PATH);
727     sob->handle = zebra_start_res(sob->configname, default_res, 0);
728     res_close(default_res);
729     if (!sob->handle)
730     {
731         yaz_log(YLOG_FATAL, "Failed to read config `%s'", sob->configname);
732         exit(1);
733     }
734 #ifdef WIN32
735     
736 #else
737     if (!sob->inetd && !sob->background) 
738     {
739         char pidfname[4096];
740         struct flock area;
741         int fd;
742
743         zebra_pidfname(sob->handle, pidfname);
744
745         fd = open(pidfname, O_EXCL|O_WRONLY|O_CREAT, 0666);
746         if (fd == -1)
747         {
748             if (errno != EEXIST)
749             {
750                 yaz_log(YLOG_FATAL|YLOG_ERRNO, "lock file %s", pidfname);
751                 exit(1);
752             }
753             fd = open(pidfname, O_RDWR, 0666);
754             if (fd == -1)
755             {
756                 yaz_log(YLOG_FATAL|YLOG_ERRNO, "lock file %s", pidfname);
757                 exit(1);
758             }
759         }
760         area.l_type = F_WRLCK;
761         area.l_whence = SEEK_SET;
762         area.l_len = area.l_start = 0L;
763         if (fcntl(fd, F_SETLK, &area) == -1)
764         {
765             yaz_log(YLOG_ERRNO|YLOG_FATAL, "Zebra server already running");
766             exit(1);
767         }
768         else
769         {
770             char pidstr[30];
771         
772             sprintf(pidstr, "%ld", (long) getpid());
773             write(fd, pidstr, strlen(pidstr));
774         }
775     }
776 #endif
777 }
778
779 static void bend_stop(struct statserv_options_block *sob)
780 {
781 #ifdef WIN32
782
783 #else
784     if (!sob->inetd && !sob->background && sob->handle) 
785     {
786         char pidfname[4096];
787         zebra_pidfname(sob->handle, pidfname);
788         unlink(pidfname);
789     }
790 #endif
791     if (sob->handle)
792     {
793         ZebraService service = sob->handle;
794         zebra_stop(service);
795     }
796 }
797
798 int main(int argc, char **argv)
799 {
800     struct statserv_options_block *sob;
801
802     sob = statserv_getcontrol();
803     strcpy(sob->configname, "zebra.cfg");
804     sob->bend_start = bend_start;
805     sob->bend_stop = bend_stop;
806 #ifdef WIN32
807     strcpy(sob->service_name, "zebrasrv");
808     strcpy(sob->service_display_name, "Zebra Server");
809 #endif
810     statserv_setcontrol(sob);
811
812     return statserv_main(argc, argv, bend_init, bend_close);
813 }
814 /*
815  * Local variables:
816  * c-basic-offset: 4
817  * indent-tabs-mode: nil
818  * End:
819  * vim: shiftwidth=4 tabstop=8 expandtab
820  */
821