index/zserver.c

   1 /* $Id: zserver.c,v 1.143 2005-12-09 10:45:05 adam Exp $
   2    Copyright (C) 1995-2005
   3    Index Data ApS
   4
   5 This file is part of the Zebra server.
   6
   7 Zebra is free software; you can redistribute it and/or modify it under
   8 the terms of the GNU General Public License as published by the Free
   9 Software Foundation; either version 2, or (at your option) any later
  10 version.
  11
  12 Zebra is distributed in the hope that it will be useful, but WITHOUT ANY
  13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  14 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  15 for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with Zebra; see the file LICENSE.zebra.  If not, write to the
  19 Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
  20 02111-1307, USA.
  21 */
  22
  23 #include <assert.h>
  24 #include <stdio.h>
  25 #include <stdlib.h>
  26 #include <fcntl.h>
  27 #ifdef WIN32
  28 #include <io.h>
  29 #include <process.h>
  30 #include <sys/locking.h>
  31 #endif
  32 #if HAVE_UNISTD_H
  33 #include <unistd.h>
  34 #endif
  35
  36 #include <errno.h>
  37 #include <yaz/log.h>
  38 #include <yaz/ill.h>
  39 #include <yaz/yaz-util.h>
  40 #include <yaz/diagbib1.h>
  41
  42 #include <sys/types.h>
  43
  44 #include "zserver.h"
  45
  46 static int bend_sort (void *handle, bend_sort_rr *rr);
  47 static int bend_delete (void *handle, bend_delete_rr *rr);
  48 static int bend_esrequest (void *handle, bend_esrequest_rr *rr);
  49 static int bend_segment (void *handle, bend_segment_rr *rr);
  50 static int bend_search (void *handle, bend_search_rr *r);
  51 static int bend_fetch (void *handle, bend_fetch_rr *r);
  52 static int bend_scan (void *handle, bend_scan_rr *r);
  53
  54 bend_initresult *bend_init (bend_initrequest *q)
  55 {
  56     bend_initresult *r = (bend_initresult *)
  57         odr_malloc (q->stream, sizeof(*r));
  58     ZebraHandle zh;
  59     struct statserv_options_block *sob;
  60     char *user = NULL;
  61     char *passwd = NULL;
  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     q->implementation_name = "Zebra Information Server";
  74     q->implementation_version = "Zebra " ZEBRAVER;
  75
  76     yaz_log (YLOG_DEBUG, "bend_init");
  77
  78     sob = statserv_getcontrol ();
  79     if (!(zh = zebra_open (sob->handle, 0)))
  80     {
  81         yaz_log (YLOG_WARN, "Failed to read config `%s'", sob->configname);
  82         r->errcode = YAZ_BIB1_PERMANENT_SYSTEM_ERROR;
  83         return r;
  84     }
  85     r->handle = zh;
  86     if (q->auth)
  87     {
  88         if (q->auth->which == Z_IdAuthentication_open)
  89         {
  90             char *openpass = xstrdup (q->auth->u.open);
  91             char *cp = strchr (openpass, '/');
  92             if (cp)
  93             {
  94                 *cp = '\0';
  95                 user = nmem_strdup (odr_getmem (q->stream), openpass);
  96                 passwd = nmem_strdup (odr_getmem (q->stream), cp+1);
  97             }
  98             xfree (openpass);
  99         }
 100         else if (q->auth->which == Z_IdAuthentication_idPass)
 101         {
 102             Z_IdPass *idPass = q->auth->u.idPass;
 103
 104             user = idPass->userId;
 105             passwd = idPass->password;
 106         }
 107     }
 108     if (zebra_auth(zh, user, passwd) != ZEBRA_OK)
 109     {
 110         r->errcode = YAZ_BIB1_INIT_AC_BAD_USERID_AND_OR_PASSWORD;
 111         r->errstring = user;
 112         return r;
 113     }
 114     if (q->charneg_request) /* characater set and langauge negotiation? */
 115     {
 116         char **charsets = 0;
 117         int num_charsets;
 118         char **langs = 0;
 119         int num_langs = 0;
 120         int selected = 0;
 121         int i;
 122         NMEM nmem = nmem_create();
 123
 124         yaz_log (YLOG_LOG, "character set and language negotiation");
 125
 126         yaz_get_proposal_charneg (nmem, q->charneg_request,
 127                                   &charsets, &num_charsets,
 128                                   &langs, &num_langs, &selected);
 129
 130         for (i = 0; i < num_charsets; i++)
 131         {
 132             const char *right_name = "";
 133             /*
 134              * FIXME! It is like rudiment :-))
 135              * We have to support this short names of character sets,
 136              * because a lot servers in Russia to use own in during
 137              * character set and language negotiation still.
 138              */
 139
 140             if (!yaz_matchstr(charsets[i], "win")) {
 141                 right_name = "WINDOWS-1251";
 142             } else if (!yaz_matchstr(charsets[i], "koi")) {
 143                 right_name = "KOI8-R";
 144             } else if (!yaz_matchstr(charsets[i], "iso")) {
 145                 right_name = "ISO-8859-5";
 146             } else if (!yaz_matchstr(charsets[i], "dos")) {
 147                 right_name = "CP866";
 148             } else if (!yaz_matchstr(charsets[i], "uni")) {
 149                 right_name = "UTF-8";
 150             } else {
 151                 right_name = charsets[i];
 152             }
 153             if (odr_set_charset (q->decode, "UTF-8", right_name) == 0)
 154             {
 155                 yaz_log (YLOG_LOG, "charset %d %s (proper name %s): OK", i,
 156                          charsets[i], right_name);
 157                 odr_set_charset (q->stream, right_name, "UTF-8");
 158                 if (selected)
 159                     zebra_record_encoding(zh, right_name);
 160                 zebra_octet_term_encoding(zh, right_name);
 161                 q->charneg_response =
 162                     yaz_set_response_charneg (q->stream, charsets[i],
 163                                               0, selected);
 164                 break;
 165             } else {
 166                 yaz_log (YLOG_LOG, "charset %d %s (proper name %s): unsupported", i,
 167                          charsets[i], right_name);
 168             }
 169         }
 170         nmem_destroy(nmem);
 171     }
 172     return r;
 173 }
 174
 175 static void search_terms(ZebraHandle zh, bend_search_rr *r)
 176 {
 177     int no_terms;
 178     int i;
 179     int type = Z_Term_general;
 180     struct Z_External *ext;
 181     Z_SearchInfoReport *sr;
 182
 183     zebra_result_set_term_no(zh, r->setname, &no_terms);
 184     if (!no_terms)
 185         return;
 186
 187     r->search_info = odr_malloc (r->stream, sizeof(*r->search_info));
 188
 189     r->search_info->num_elements = 1;
 190     r->search_info->list =
 191         odr_malloc (r->stream, sizeof(*r->search_info->list));
 192     r->search_info->list[0] =
 193         odr_malloc (r->stream, sizeof(**r->search_info->list));
 194     r->search_info->list[0]->category = 0;
 195     r->search_info->list[0]->which = Z_OtherInfo_externallyDefinedInfo;
 196     ext = odr_malloc (r->stream, sizeof(*ext));
 197     r->search_info->list[0]->information.externallyDefinedInfo = ext;
 198     ext->direct_reference =
 199         yaz_oidval_to_z3950oid (r->stream, CLASS_USERINFO, VAL_SEARCHRES1);
 200     ext->indirect_reference = 0;
 201     ext->descriptor = 0;
 202     ext->which = Z_External_searchResult1;
 203     sr = odr_malloc (r->stream, sizeof(Z_SearchInfoReport));
 204     ext->u.searchResult1 = sr;
 205     sr->num = no_terms;
 206     sr->elements = odr_malloc (r->stream, sr->num *
 207                                sizeof(*sr->elements));
 208     for (i = 0; i<no_terms; i++)
 209     {
 210         Z_SearchInfoReport_s *se;
 211         Z_Term *term;
 212         zint count;
 213         int approx;
 214         char outbuf[1024];
 215         size_t len = sizeof(outbuf);
 216         const char *term_ref_id = 0;
 217
 218         zebra_result_set_term_info(zh, r->setname, i,
 219                                    &count, &approx, outbuf, &len,
 220                                    &term_ref_id);
 221         se = sr->elements[i] = odr_malloc (r->stream, sizeof(**sr->elements));
 222         se->subqueryId = term_ref_id ?
 223             odr_strdup(r->stream, term_ref_id) : 0;
 224
 225         se->fullQuery = odr_intdup(r->stream, 0);
 226         se->subqueryExpression =
 227             odr_malloc (r->stream, sizeof(Z_QueryExpression));
 228         se->subqueryExpression->which =
 229             Z_QueryExpression_term;
 230         se->subqueryExpression->u.term =
 231             odr_malloc (r->stream, sizeof(Z_QueryExpressionTerm));
 232         term = odr_malloc (r->stream, sizeof(Z_Term));
 233         se->subqueryExpression->u.term->queryTerm = term;
 234         switch (type)
 235         {
 236         case Z_Term_characterString:
 237             term->which = Z_Term_characterString;
 238             term->u.characterString = odr_strdup (r->stream, outbuf);
 239             break;
 240         case Z_Term_general:
 241             term->which = Z_Term_general;
 242             term->u.general = odr_malloc (r->stream, sizeof(*term->u.general));
 243             term->u.general->size = term->u.general->len = len;
 244             term->u.general->buf = odr_malloc (r->stream, len);
 245             memcpy (term->u.general->buf, outbuf, len);
 246             break;
 247         default:
 248             term->which = Z_Term_general;
 249             term->u.null = odr_nullval();
 250         }
 251         se->subqueryExpression->u.term->termComment = 0;
 252         se->subqueryInterpretation = 0;
 253         se->subqueryRecommendation = 0;
 254         if (count > 2000000000)
 255             count = 2000000000;
 256         se->subqueryCount = odr_intdup(r->stream, (int) count);
 257         se->subqueryWeight = 0;
 258         se->resultsByDB = 0;
 259     }
 260 }
 261
 262 int bend_search (void *handle, bend_search_rr *r)
 263 {
 264     ZebraHandle zh = (ZebraHandle) handle;
 265     zint zhits = 0;
 266     ZEBRA_RES res;
 267
 268     res = zebra_select_databases (zh, r->num_bases,
 269                                   (const char **) r->basenames);
 270     if (res != ZEBRA_OK)
 271     {
 272         zebra_result (zh, &r->errcode, &r->errstring);
 273         return 0;
 274     }
 275     yaz_log (YLOG_DEBUG, "ResultSet '%s'", r->setname);
 276     switch (r->query->which)
 277     {
 278     case Z_Query_type_1: case Z_Query_type_101:
 279         res = zebra_search_RPN(zh, r->stream, r->query->u.type_1,
 280                                r->setname, &zhits);
 281         if (res != ZEBRA_OK)
 282             zebra_result(zh, &r->errcode, &r->errstring);
 283         else
 284         {
 285             if (zhits >   2147483646)
 286                 r->hits = 2147483647;
 287             else
 288             r->hits = (int) zhits;
 289             search_terms (zh, r);
 290         }
 291         break;
 292     case Z_Query_type_2:
 293         r->errcode = YAZ_BIB1_QUERY_TYPE_UNSUPP;
 294         r->errstring = "type-2";
 295         break;
 296     default:
 297         r->errcode = YAZ_BIB1_QUERY_TYPE_UNSUPP;
 298     }
 299     return 0;
 300 }
 301
 302
 303 int bend_fetch (void *handle, bend_fetch_rr *r)
 304 {
 305     ZebraHandle zh = (ZebraHandle) handle;
 306     ZebraRetrievalRecord retrievalRecord;
 307     ZEBRA_RES res;
 308
 309     retrievalRecord.position = r->number;
 310
 311     r->last_in_set = 0;
 312     res = zebra_records_retrieve (zh, r->stream, r->setname, r->comp,
 313                                   r->request_format, 1, &retrievalRecord);
 314     if (res != ZEBRA_OK)
 315     {
 316         /* non-surrogate diagnostic */
 317         zebra_result (zh, &r->errcode, &r->errstring);
 318     }
 319     else if (retrievalRecord.errCode)
 320     {
 321         /* surrogate diagnostic (diagnostic per record) */
 322         r->surrogate_flag = 1;
 323         r->errcode = retrievalRecord.errCode;
 324         r->errstring = retrievalRecord.errString;
 325         r->basename = retrievalRecord.base;
 326     }
 327     else
 328     {
 329         r->basename = retrievalRecord.base;
 330         r->record = retrievalRecord.buf;
 331         r->len = retrievalRecord.len;
 332         r->output_format = retrievalRecord.format;
 333     }
 334     return 0;
 335 }
 336
 337 static int bend_scan (void *handle, bend_scan_rr *r)
 338 {
 339     ZebraScanEntry *entries;
 340     ZebraHandle zh = (ZebraHandle) handle;
 341     int is_partial, i;
 342     ZEBRA_RES res;
 343
 344     res = zebra_select_databases(zh, r->num_bases,
 345                                  (const char **) r->basenames);
 346     if (res != ZEBRA_OK)
 347     {
 348         zebra_result (zh, &r->errcode, &r->errstring);
 349         return 0;
 350     }
 351     if (r->step_size != 0 && *r->step_size != 0) {
 352         r->errcode = YAZ_BIB1_ONLY_ZERO_STEP_SIZE_SUPPORTED_FOR_SCAN;
 353         r->errstring = 0;
 354         return 0;
 355     }
 356     r->entries = (struct scan_entry *)
 357         odr_malloc (r->stream, sizeof(*r->entries) * r->num_entries);
 358     res = zebra_scan(zh, r->stream, r->term,
 359                      r->attributeset,
 360                      &r->term_position,
 361                      &r->num_entries, &entries, &is_partial,
 362                      0 /* setname */);
 363     if (res == ZEBRA_OK)
 364     {
 365         if (is_partial)
 366             r->status = BEND_SCAN_PARTIAL;
 367         else
 368             r->status = BEND_SCAN_SUCCESS;
 369         for (i = 0; i < r->num_entries; i++)
 370         {
 371             r->entries[i].term = entries[i].term;
 372             r->entries[i].occurrences = entries[i].occurrences;
 373         }
 374     }
 375     else
 376     {
 377         r->status = BEND_SCAN_PARTIAL;
 378         zebra_result(zh, &r->errcode, &r->errstring);
 379     }
 380     return 0;
 381 }
 382
 383 void bend_close (void *handle)
 384 {
 385     zebra_close ((ZebraHandle) handle);
 386     xmalloc_trav("bend_close");
 387     nmem_print_list();
 388 }
 389
 390 int bend_sort (void *handle, bend_sort_rr *rr)
 391 {
 392     ZebraHandle zh = (ZebraHandle) handle;
 393
 394     zebra_sort (zh, rr->stream,
 395                 rr->num_input_setnames, (const char **) rr->input_setnames,
 396                 rr->output_setname, rr->sort_sequence, &rr->sort_status);
 397     zebra_result (zh, &rr->errcode, &rr->errstring);
 398     return 0;
 399 }
 400
 401 int bend_delete (void *handle, bend_delete_rr *rr)
 402 {
 403     ZebraHandle zh = (ZebraHandle) handle;
 404
 405     rr->delete_status = zebra_deleteResultSet(zh, rr->function,
 406                                               rr->num_setnames, rr->setnames,
 407                                               rr->statuses);
 408     return 0;
 409 }
 410
 411 static int es_admin_request (ZebraHandle zh, Z_AdminEsRequest *r)
 412 {
 413     if (r->toKeep->databaseName)
 414     {
 415         yaz_log(YLOG_LOG, "adm request database %s", r->toKeep->databaseName);
 416     }
 417     switch (r->toKeep->which)
 418     {
 419     case Z_ESAdminOriginPartToKeep_reIndex:
 420         yaz_log(YLOG_LOG, "adm-reindex");
 421         break;
 422     case Z_ESAdminOriginPartToKeep_truncate:
 423         yaz_log(YLOG_LOG, "adm-truncate");
 424         break;
 425     case Z_ESAdminOriginPartToKeep_drop:
 426         yaz_log(YLOG_LOG, "adm-drop");
 427         zebra_drop_database (zh, r->toKeep->databaseName);
 428         break;
 429     case Z_ESAdminOriginPartToKeep_create:
 430         yaz_log(YLOG_LOG, "adm-create %s", r->toKeep->databaseName);
 431         zebra_create_database (zh, r->toKeep->databaseName);
 432         break;
 433     case Z_ESAdminOriginPartToKeep_import:
 434         yaz_log(YLOG_LOG, "adm-import");
 435         zebra_admin_import_begin (zh, r->toKeep->databaseName,
 436                         r->toKeep->u.import->recordType);
 437         break;
 438     case Z_ESAdminOriginPartToKeep_refresh:
 439         yaz_log(YLOG_LOG, "adm-refresh");
 440         break;
 441     case Z_ESAdminOriginPartToKeep_commit:
 442         yaz_log(YLOG_LOG, "adm-commit");
 443         if (r->toKeep->databaseName)
 444             zebra_select_database(zh, r->toKeep->databaseName);
 445         zebra_commit(zh);
 446         break;
 447     case Z_ESAdminOriginPartToKeep_shutdown:
 448         yaz_log(YLOG_LOG, "shutdown");
 449         zebra_admin_shutdown(zh);
 450         break;
 451     case Z_ESAdminOriginPartToKeep_start:
 452         yaz_log(YLOG_LOG, "start");
 453         zebra_admin_start(zh);
 454         break;
 455     default:
 456         yaz_log(YLOG_LOG, "unknown admin");
 457     }
 458     return 0;
 459 }
 460
 461 static int es_admin (ZebraHandle zh, Z_Admin *r)
 462 {
 463     switch (r->which)
 464     {
 465     case Z_Admin_esRequest:
 466         es_admin_request (zh, r->u.esRequest);
 467         break;
 468     case Z_Admin_taskPackage:
 469         yaz_log (YLOG_LOG, "adm taskpackage (unhandled)");
 470         break;
 471     default:
 472         break;
 473     }
 474     return 0;
 475 }
 476
 477 int bend_segment (void *handle, bend_segment_rr *rr)
 478 {
 479     ZebraHandle zh = (ZebraHandle) handle;
 480     Z_Segment *segment = rr->segment;
 481
 482     if (segment->num_segmentRecords)
 483         zebra_admin_import_segment (zh, rr->segment);
 484     else
 485         zebra_admin_import_end (zh);
 486     return 0;
 487 }
 488
 489 int bend_esrequest (void *handle, bend_esrequest_rr *rr)
 490 {
 491     ZebraHandle zh = (ZebraHandle) handle;
 492
 493     yaz_log(YLOG_LOG, "function: %d", *rr->esr->function);
 494     if (rr->esr->packageName)
 495         yaz_log(YLOG_LOG, "packagename: %s", rr->esr->packageName);
 496     yaz_log(YLOG_LOG, "Waitaction: %d", *rr->esr->waitAction);
 497
 498     if (!rr->esr->taskSpecificParameters)
 499     {
 500         yaz_log (YLOG_WARN, "No task specific parameters");
 501     }
 502     else if (rr->esr->taskSpecificParameters->which == Z_External_ESAdmin)
 503     {
 504         es_admin (zh, rr->esr->taskSpecificParameters->u.adminService);
 505
 506         zebra_result (zh, &rr->errcode, &rr->errstring);
 507     }
 508     else if (rr->esr->taskSpecificParameters->which == Z_External_update)
 509     {
 510         Z_IUUpdate *up = rr->esr->taskSpecificParameters->u.update;
 511         yaz_log (YLOG_LOG, "Received DB Update");
 512         if (up->which == Z_IUUpdate_esRequest)
 513         {
 514             Z_IUUpdateEsRequest *esRequest = up->u.esRequest;
 515             Z_IUOriginPartToKeep *toKeep = esRequest->toKeep;
 516             Z_IUSuppliedRecords *notToKeep = esRequest->notToKeep;
 517
 518             yaz_log (YLOG_LOG, "action");
 519             if (toKeep->action)
 520             {
 521                 switch (*toKeep->action)
 522                 {
 523                 case Z_IUOriginPartToKeep_recordInsert:
 524                     yaz_log (YLOG_LOG, "recordInsert");
 525                     break;
 526                 case Z_IUOriginPartToKeep_recordReplace:
 527                     yaz_log (YLOG_LOG, "recordUpdate");
 528                     break;
 529                 case Z_IUOriginPartToKeep_recordDelete:
 530                     yaz_log (YLOG_LOG, "recordDelete");
 531                     break;
 532                 case Z_IUOriginPartToKeep_elementUpdate:
 533                     yaz_log (YLOG_LOG, "elementUpdate");
 534                     break;
 535                 case Z_IUOriginPartToKeep_specialUpdate:
 536                     yaz_log (YLOG_LOG, "specialUpdate");
 537                     break;
 538                 case Z_ESAdminOriginPartToKeep_shutdown:
 539                     yaz_log (YLOG_LOG, "shutDown");
 540                     break;
 541                 case Z_ESAdminOriginPartToKeep_start:
 542                     yaz_log (YLOG_LOG, "start");
 543                     break;
 544                 default:
 545                     yaz_log (YLOG_LOG, " unknown (%d)", *toKeep->action);
 546                 }
 547             }
 548             if (toKeep->databaseName)
 549             {
 550                 yaz_log (YLOG_LOG, "database: %s", toKeep->databaseName);
 551
 552                 if (zebra_select_database(zh, toKeep->databaseName))
 553                     return 0;
 554             }
 555             else
 556             {
 557                 yaz_log (YLOG_WARN, "no database supplied for ES Update");
 558                 rr->errcode =
 559                     YAZ_BIB1_ES_MISSING_MANDATORY_PARAMETER_FOR_SPECIFIED_FUNCTION_;
 560                 rr->errstring = "database";
 561                 return 0;
 562             }
 563             if (zebra_begin_trans(zh, 1) != ZEBRA_OK)
 564             {
 565                 zebra_result(zh, &rr->errcode, &rr->errstring);
 566             }
 567             else
 568             {
 569                 int i;
 570                 for (i = 0; notToKeep && i < notToKeep->num; i++)
 571                 {
 572                     Z_External *rec = notToKeep->elements[i]->record;
 573                     struct oident *oident = 0;
 574                     Odr_oct *opaque_recid = 0;
 575                     SYSNO *sysno = 0;
 576                     SYSNO sysno_tmp;
 577
 578                     if (notToKeep->elements[i]->u.opaque)
 579                     {
 580                         switch(notToKeep->elements[i]->which)
 581                         {
 582                         case Z_IUSuppliedRecords_elem_opaque:
 583                             opaque_recid = notToKeep->elements[i]->u.opaque;
 584                             break; /* OK, recid already set */
 585                         case Z_IUSuppliedRecords_elem_number:
 586                             sysno_tmp = *notToKeep->elements[i]->u.number;
 587                             sysno = &sysno_tmp;
 588                             break;
 589                         }
 590                     }
 591                     if (rec->direct_reference)
 592                     {
 593                         oident = oid_getentbyoid(rec->direct_reference);
 594                         if (oident)
 595                             yaz_log (YLOG_LOG, "record %d type %s", i,
 596                                      oident->desc);
 597                     }
 598                     switch (rec->which)
 599                     {
 600                     case Z_External_sutrs:
 601                         if (rec->u.octet_aligned->len > 170)
 602                             yaz_log (YLOG_LOG, "%d bytes:\n%.168s ...",
 603                                      rec->u.sutrs->len,
 604                                      rec->u.sutrs->buf);
 605                         else
 606                             yaz_log (YLOG_LOG, "%d bytes:\n%s",
 607                                      rec->u.sutrs->len,
 608                                      rec->u.sutrs->buf);
 609                         break;
 610                     case Z_External_octet:
 611                         if (rec->u.octet_aligned->len > 170)
 612                             yaz_log (YLOG_LOG, "%d bytes:\n%.168s ...",
 613                                      rec->u.octet_aligned->len,
 614                                      rec->u.octet_aligned->buf);
 615                         else
 616                             yaz_log (YLOG_LOG, "%d bytes\n%s",
 617                                      rec->u.octet_aligned->len,
 618                                      rec->u.octet_aligned->buf);
 619                     }
 620                     if (oident && oident->value != VAL_TEXT_XML)
 621                     {
 622                         rr->errcode = YAZ_BIB1_ES_IMMEDIATE_EXECUTION_FAILED;
 623                         rr->errstring = "only XML update supported";
 624                         break;
 625                     }
 626                     if (rec->which == Z_External_octet)
 627                     {
 628                         int action = 0;
 629
 630                         if (*toKeep->action ==
 631                             Z_IUOriginPartToKeep_recordInsert)
 632                             action = 1;
 633                         if (*toKeep->action ==
 634                             Z_IUOriginPartToKeep_recordReplace)
 635                             action = 2;
 636                         if (*toKeep->action ==
 637                             Z_IUOriginPartToKeep_recordDelete)
 638                             action = 3;
 639                         if (*toKeep->action ==
 640                             Z_IUOriginPartToKeep_specialUpdate)
 641                             action = 4;
 642
 643                         if (!action)
 644                         {
 645                             rr->errcode =
 646                                 YAZ_BIB1_ES_IMMEDIATE_EXECUTION_FAILED;
 647                             rr->errstring = "unsupported ES Update action";
 648                             break;
 649                         }
 650                         else if (opaque_recid)
 651                         {
 652                             int r = zebra_admin_exchange_record (
 653                                 zh,
 654                                 (const char *) rec->u.octet_aligned->buf,
 655                                 rec->u.octet_aligned->len,
 656                                 (const char *) opaque_recid->buf,
 657                                 opaque_recid->len,
 658                                 action);
 659                             if (r)
 660                             {
 661                                 zebra_result(zh, &rr->errcode,
 662                                              &rr->errstring);
 663                                 break;
 664                             }
 665                         }
 666                         else
 667                         {
 668                             ZEBRA_RES r = ZEBRA_FAIL;
 669                             switch(action) {
 670                             case 1:
 671                                 r = zebra_insert_record(
 672                                     zh,
 673                                     0, /* recordType */
 674                                     sysno,
 675                                     0, /* match */
 676                                     0, /* fname */
 677                                     (const char *) rec->u.octet_aligned->buf,
 678                                     rec->u.octet_aligned->len,
 679                                     0);
 680                                 if (r == ZEBRA_FAIL)
 681                                 {
 682                                     rr->errcode =
 683                                         YAZ_BIB1_ES_IMMEDIATE_EXECUTION_FAILED;
 684                                     rr->errstring = "insert_record failed";
 685                                 }
 686                                 break;
 687                             case 2:
 688                             case 4:
 689                                 r = zebra_update_record(
 690                                     zh,
 691                                     0, /* recordType */
 692                                     sysno,
 693                                     0, /* match */
 694                                     0, /* fname */
 695                                     (const char *) rec->u.octet_aligned->buf,
 696                                     rec->u.octet_aligned->len,
 697                                     1);
 698                                 if (r == ZEBRA_FAIL)
 699                                 {
 700                                     rr->errcode =
 701                                         YAZ_BIB1_ES_IMMEDIATE_EXECUTION_FAILED;
 702                                     rr->errstring = "update_record failed";
 703                                 }
 704                                 break;
 705                             case 3:
 706                                 r = zebra_delete_record(
 707                                     zh,
 708                                     0, /* recordType */
 709                                     sysno,
 710                                     0, /* match */
 711                                     0, /* fname */
 712                                     (const char *) rec->u.octet_aligned->buf,
 713                                     rec->u.octet_aligned->len,
 714                                     0);
 715                                 if (r == ZEBRA_FAIL)
 716                                 {
 717                                     rr->errcode =
 718                                         YAZ_BIB1_ES_IMMEDIATE_EXECUTION_FAILED;
 719                                     rr->errstring = "delete_record failed";
 720                                 }
 721                                 break;
 722                             }
 723                         }
 724                     }
 725                 }
 726                 zebra_end_trans (zh);
 727             }
 728         }
 729     }
 730     else
 731     {
 732         yaz_log (YLOG_WARN, "Unknown Extended Service(%d)",
 733                  rr->esr->taskSpecificParameters->which);
 734         rr->errcode = YAZ_BIB1_ES_EXTENDED_SERVICE_TYPE_UNSUPP;
 735
 736     }
 737     return 0;
 738 }
 739
 740 static void bend_start (struct statserv_options_block *sob)
 741 {
 742     if (sob->handle)
 743         zebra_stop((ZebraService) sob->handle);
 744     sob->handle = zebra_start(sob->configname);
 745     if (!sob->handle)
 746     {
 747         yaz_log (YLOG_FATAL, "Failed to read config `%s'", sob->configname);
 748         exit (1);
 749     }
 750 #ifdef WIN32
 751
 752 #else
 753     if (!sob->inetd)
 754     {
 755         char pidfname[4096];
 756         struct flock area;
 757         int fd;
 758
 759         zebra_pidfname(sob->handle, pidfname);
 760
 761         fd = open (pidfname, O_EXCL|O_WRONLY|O_CREAT, 0666);
 762         if (fd == -1)
 763         {
 764             if (errno != EEXIST)
 765             {
 766                 yaz_log(YLOG_FATAL|YLOG_ERRNO, "lock file %s", pidfname);
 767                 exit(1);
 768             }
 769             fd = open(pidfname, O_RDWR, 0666);
 770             if (fd == -1)
 771             {
 772                 yaz_log(YLOG_FATAL|YLOG_ERRNO, "lock file %s", pidfname);
 773                 exit(1);
 774             }
 775         }
 776         area.l_type = F_WRLCK;
 777         area.l_whence = SEEK_SET;
 778         area.l_len = area.l_start = 0L;
 779         if (fcntl (fd, F_SETLK, &area) == -1)
 780         {
 781             yaz_log(YLOG_ERRNO|YLOG_FATAL, "Zebra server already running");
 782             exit(1);
 783         }
 784         else
 785         {
 786             char pidstr[30];
 787
 788             sprintf (pidstr, "%ld", (long) getpid ());
 789             write (fd, pidstr, strlen(pidstr));
 790         }
 791     }
 792 #endif
 793 }
 794
 795 static void bend_stop(struct statserv_options_block *sob)
 796 {
 797 #ifdef WIN32
 798
 799 #else
 800     if (!sob->inetd && sob->handle)
 801     {
 802         char pidfname[4096];
 803         zebra_pidfname(sob->handle, pidfname);
 804         unlink (pidfname);
 805     }
 806 #endif
 807     if (sob->handle)
 808     {
 809         ZebraService service = sob->handle;
 810         zebra_stop(service);
 811     }
 812 }
 813
 814 int main (int argc, char **argv)
 815 {
 816     struct statserv_options_block *sob;
 817
 818     sob = statserv_getcontrol ();
 819     strcpy (sob->configname, "zebra.cfg");
 820     sob->bend_start = bend_start;
 821     sob->bend_stop = bend_stop;
 822 #ifdef WIN32
 823     strcpy (sob->service_display_name, "Zebra Server");
 824 #endif
 825     statserv_setcontrol (sob);
 826
 827     return statserv_main (argc, argv, bend_init, bend_close);
 828 }