index/zserver.c

   1 /* $Id: zserver.c,v 1.136 2005-06-14 20:28:54 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)))
  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_Term *term;
 211         zint count;
 212         int approx;
 213         char outbuf[1024];
 214         size_t len = sizeof(outbuf);
 215
 216         zebra_result_set_term_info(zh, r->setname, i,
 217                                    &count, &approx, outbuf, &len);
 218
 219         sr->elements[i] = odr_malloc (r->stream, sizeof(**sr->elements));
 220         sr->elements[i]->subqueryId = 0;
 221         sr->elements[i]->fullQuery = odr_malloc (r->stream,
 222                                                  sizeof(bool_t));
 223         *sr->elements[i]->fullQuery = 0;
 224         sr->elements[i]->subqueryExpression =
 225             odr_malloc (r->stream, sizeof(Z_QueryExpression));
 226         sr->elements[i]->subqueryExpression->which =
 227             Z_QueryExpression_term;
 228         sr->elements[i]->subqueryExpression->u.term =
 229             odr_malloc (r->stream, sizeof(Z_QueryExpressionTerm));
 230         term = odr_malloc (r->stream, sizeof(Z_Term));
 231         sr->elements[i]->subqueryExpression->u.term->queryTerm = term;
 232         switch (type)
 233         {
 234         case Z_Term_characterString:
 235             yaz_log (YLOG_DEBUG, "term as characterString");
 236             term->which = Z_Term_characterString;
 237             term->u.characterString = odr_strdup (r->stream, outbuf);
 238             break;
 239         case Z_Term_general:
 240             yaz_log (YLOG_DEBUG, "term as 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         sr->elements[i]->subqueryExpression->u.term->termComment = 0;
 252         sr->elements[i]->subqueryInterpretation = 0;
 253         sr->elements[i]->subqueryRecommendation = 0;
 254         if (count > 2000000000)
 255             count = 2000000000;
 256         sr->elements[i]->subqueryCount = odr_intdup (r->stream, (int) count);
 257         sr->elements[i]->subqueryWeight = 0;
 258         sr->elements[i]->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     if (res == ZEBRA_OK)
 363     {
 364         if (is_partial)
 365             r->status = BEND_SCAN_PARTIAL;
 366         else
 367             r->status = BEND_SCAN_SUCCESS;
 368         for (i = 0; i < r->num_entries; i++)
 369         {
 370             r->entries[i].term = entries[i].term;
 371             r->entries[i].occurrences = entries[i].occurrences;
 372         }
 373     }
 374     else
 375     {
 376         r->status = BEND_SCAN_PARTIAL;
 377         zebra_result(zh, &r->errcode, &r->errstring);
 378     }
 379     return 0;
 380 }
 381
 382 void bend_close (void *handle)
 383 {
 384     zebra_close ((ZebraHandle) handle);
 385     xmalloc_trav("bend_close");
 386     nmem_print_list();
 387 }
 388
 389 int bend_sort (void *handle, bend_sort_rr *rr)
 390 {
 391     ZebraHandle zh = (ZebraHandle) handle;
 392
 393     zebra_sort (zh, rr->stream,
 394                 rr->num_input_setnames, (const char **) rr->input_setnames,
 395                 rr->output_setname, rr->sort_sequence, &rr->sort_status);
 396     zebra_result (zh, &rr->errcode, &rr->errstring);
 397     return 0;
 398 }
 399
 400 int bend_delete (void *handle, bend_delete_rr *rr)
 401 {
 402     ZebraHandle zh = (ZebraHandle) handle;
 403
 404     rr->delete_status = zebra_deleteResultSet(zh, rr->function,
 405                                               rr->num_setnames, rr->setnames,
 406                                               rr->statuses);
 407     return 0;
 408 }
 409
 410 static int es_admin_request (ZebraHandle zh, Z_AdminEsRequest *r)
 411 {
 412     if (r->toKeep->databaseName)
 413     {
 414         yaz_log(YLOG_LOG, "adm request database %s", r->toKeep->databaseName);
 415     }
 416     switch (r->toKeep->which)
 417     {
 418     case Z_ESAdminOriginPartToKeep_reIndex:
 419         yaz_log(YLOG_LOG, "adm-reindex");
 420         break;
 421     case Z_ESAdminOriginPartToKeep_truncate:
 422         yaz_log(YLOG_LOG, "adm-truncate");
 423         break;
 424     case Z_ESAdminOriginPartToKeep_drop:
 425         yaz_log(YLOG_LOG, "adm-drop");
 426         zebra_drop_database (zh, r->toKeep->databaseName);
 427         break;
 428     case Z_ESAdminOriginPartToKeep_create:
 429         yaz_log(YLOG_LOG, "adm-create %s", r->toKeep->databaseName);
 430         zebra_create_database (zh, r->toKeep->databaseName);
 431         break;
 432     case Z_ESAdminOriginPartToKeep_import:
 433         yaz_log(YLOG_LOG, "adm-import");
 434         zebra_admin_import_begin (zh, r->toKeep->databaseName,
 435                         r->toKeep->u.import->recordType);
 436         break;
 437     case Z_ESAdminOriginPartToKeep_refresh:
 438         yaz_log(YLOG_LOG, "adm-refresh");
 439         break;
 440     case Z_ESAdminOriginPartToKeep_commit:
 441         yaz_log(YLOG_LOG, "adm-commit");
 442         if (r->toKeep->databaseName)
 443             zebra_select_database(zh, r->toKeep->databaseName);
 444         zebra_commit(zh);
 445         break;
 446     case Z_ESAdminOriginPartToKeep_shutdown:
 447         yaz_log(YLOG_LOG, "shutdown");
 448         zebra_admin_shutdown(zh);
 449         break;
 450     case Z_ESAdminOriginPartToKeep_start:
 451         yaz_log(YLOG_LOG, "start");
 452         zebra_admin_start(zh);
 453         break;
 454     default:
 455         yaz_log(YLOG_LOG, "unknown admin");
 456     }
 457     return 0;
 458 }
 459
 460 static int es_admin (ZebraHandle zh, Z_Admin *r)
 461 {
 462     switch (r->which)
 463     {
 464     case Z_Admin_esRequest:
 465         es_admin_request (zh, r->u.esRequest);
 466         break;
 467     case Z_Admin_taskPackage:
 468         yaz_log (YLOG_LOG, "adm taskpackage (unhandled)");
 469         break;
 470     default:
 471         break;
 472     }
 473     return 0;
 474 }
 475
 476 int bend_segment (void *handle, bend_segment_rr *rr)
 477 {
 478     ZebraHandle zh = (ZebraHandle) handle;
 479     Z_Segment *segment = rr->segment;
 480
 481     if (segment->num_segmentRecords)
 482         zebra_admin_import_segment (zh, rr->segment);
 483     else
 484         zebra_admin_import_end (zh);
 485     return 0;
 486 }
 487
 488 int bend_esrequest (void *handle, bend_esrequest_rr *rr)
 489 {
 490     ZebraHandle zh = (ZebraHandle) handle;
 491
 492     yaz_log(YLOG_LOG, "function: %d", *rr->esr->function);
 493     if (rr->esr->packageName)
 494         yaz_log(YLOG_LOG, "packagename: %s", rr->esr->packageName);
 495     yaz_log(YLOG_LOG, "Waitaction: %d", *rr->esr->waitAction);
 496
 497     if (!rr->esr->taskSpecificParameters)
 498     {
 499         yaz_log (YLOG_WARN, "No task specific parameters");
 500     }
 501     else if (rr->esr->taskSpecificParameters->which == Z_External_ESAdmin)
 502     {
 503         es_admin (zh, rr->esr->taskSpecificParameters->u.adminService);
 504
 505         zebra_result (zh, &rr->errcode, &rr->errstring);
 506     }
 507     else if (rr->esr->taskSpecificParameters->which == Z_External_update)
 508     {
 509         Z_IUUpdate *up = rr->esr->taskSpecificParameters->u.update;
 510         yaz_log (YLOG_LOG, "Received DB Update");
 511         if (up->which == Z_IUUpdate_esRequest)
 512         {
 513             Z_IUUpdateEsRequest *esRequest = up->u.esRequest;
 514             Z_IUOriginPartToKeep *toKeep = esRequest->toKeep;
 515             Z_IUSuppliedRecords *notToKeep = esRequest->notToKeep;
 516
 517             yaz_log (YLOG_LOG, "action");
 518             if (toKeep->action)
 519             {
 520                 switch (*toKeep->action)
 521                 {
 522                 case Z_IUOriginPartToKeep_recordInsert:
 523                     yaz_log (YLOG_LOG, "recordInsert");
 524                     break;
 525                 case Z_IUOriginPartToKeep_recordReplace:
 526                     yaz_log (YLOG_LOG, "recordUpdate");
 527                     break;
 528                 case Z_IUOriginPartToKeep_recordDelete:
 529                     yaz_log (YLOG_LOG, "recordDelete");
 530                     break;
 531                 case Z_IUOriginPartToKeep_elementUpdate:
 532                     yaz_log (YLOG_LOG, "elementUpdate");
 533                     break;
 534                 case Z_IUOriginPartToKeep_specialUpdate:
 535                     yaz_log (YLOG_LOG, "specialUpdate");
 536                     break;
 537                 case Z_ESAdminOriginPartToKeep_shutdown:
 538                     yaz_log (YLOG_LOG, "shutDown");
 539                     break;
 540                 case Z_ESAdminOriginPartToKeep_start:
 541                     yaz_log (YLOG_LOG, "start");
 542                     break;
 543                 default:
 544                     yaz_log (YLOG_LOG, " unknown (%d)", *toKeep->action);
 545                 }
 546             }
 547             if (toKeep->databaseName)
 548             {
 549                 yaz_log (YLOG_LOG, "database: %s", toKeep->databaseName);
 550
 551                 if (zebra_select_database(zh, toKeep->databaseName))
 552                     return 0;
 553             }
 554             else
 555             {
 556                 yaz_log (YLOG_WARN, "no database supplied for ES Update");
 557                 rr->errcode =
 558                     YAZ_BIB1_ES_MISSING_MANDATORY_PARAMETER_FOR_SPECIFIED_FUNCTION_;
 559                 rr->errstring = "database";
 560                 return 0;
 561             }
 562             if (zebra_begin_trans(zh, 1) != ZEBRA_OK)
 563             {
 564                 zebra_result(zh, &rr->errcode, &rr->errstring);
 565             }
 566             else
 567             {
 568                 int i;
 569                 for (i = 0; notToKeep && i < notToKeep->num; i++)
 570                 {
 571                     Z_External *rec = notToKeep->elements[i]->record;
 572                     struct oident *oident = 0;
 573                     Odr_oct *opaque_recid = 0;
 574                     SYSNO sysno = 0;
 575
 576                     if (notToKeep->elements[i]->u.opaque)
 577                     {
 578                         switch(notToKeep->elements[i]->which)
 579                         {
 580                         case Z_IUSuppliedRecords_elem_opaque:
 581                             opaque_recid = notToKeep->elements[i]->u.opaque;
 582                             break; /* OK, recid already set */
 583                         case Z_IUSuppliedRecords_elem_number:
 584                             sysno = *notToKeep->elements[i]->u.number;
 585                             break;
 586                         }
 587                     }
 588                     if (rec->direct_reference)
 589                     {
 590                         oident = oid_getentbyoid(rec->direct_reference);
 591                         if (oident)
 592                             yaz_log (YLOG_LOG, "record %d type %s", i,
 593                                      oident->desc);
 594                     }
 595                     switch (rec->which)
 596                     {
 597                     case Z_External_sutrs:
 598                         if (rec->u.octet_aligned->len > 170)
 599                             yaz_log (YLOG_LOG, "%d bytes:\n%.168s ...",
 600                                      rec->u.sutrs->len,
 601                                      rec->u.sutrs->buf);
 602                         else
 603                             yaz_log (YLOG_LOG, "%d bytes:\n%s",
 604                                      rec->u.sutrs->len,
 605                                      rec->u.sutrs->buf);
 606                         break;
 607                     case Z_External_octet:
 608                         if (rec->u.octet_aligned->len > 170)
 609                             yaz_log (YLOG_LOG, "%d bytes:\n%.168s ...",
 610                                      rec->u.octet_aligned->len,
 611                                      rec->u.octet_aligned->buf);
 612                         else
 613                             yaz_log (YLOG_LOG, "%d bytes\n%s",
 614                                      rec->u.octet_aligned->len,
 615                                      rec->u.octet_aligned->buf);
 616                     }
 617                     if (oident && oident->value != VAL_TEXT_XML)
 618                     {
 619                         rr->errcode = YAZ_BIB1_ES_IMMEDIATE_EXECUTION_FAILED;
 620                         rr->errstring = "only XML update supported";
 621                         break;
 622                     }
 623                     if (rec->which == Z_External_octet)
 624                     {
 625                         int action = 0;
 626
 627                         if (*toKeep->action ==
 628                             Z_IUOriginPartToKeep_recordInsert)
 629                             action = 1;
 630                         if (*toKeep->action ==
 631                             Z_IUOriginPartToKeep_recordReplace)
 632                             action = 2;
 633                         if (*toKeep->action ==
 634                             Z_IUOriginPartToKeep_recordDelete)
 635                             action = 3;
 636                         if (*toKeep->action ==
 637                             Z_IUOriginPartToKeep_specialUpdate)
 638                             action = 4;
 639
 640                         if (!action)
 641                         {
 642                             rr->errcode =
 643                                 YAZ_BIB1_ES_IMMEDIATE_EXECUTION_FAILED;
 644                             rr->errstring = "unsupported ES Update action";
 645                             break;
 646                         }
 647                         else if (opaque_recid)
 648                         {
 649                             int r = zebra_admin_exchange_record (
 650                                 zh,
 651                                 rec->u.octet_aligned->buf,
 652                                 rec->u.octet_aligned->len,
 653                                 opaque_recid->buf, opaque_recid->len,
 654                                 action);
 655                             if (r)
 656                             {
 657                                 rr->errcode =
 658                                     YAZ_BIB1_ES_IMMEDIATE_EXECUTION_FAILED;
 659                                 rr->errstring = "record exchange failed";
 660                                 break;
 661                             }
 662                         }
 663                         else
 664                         {
 665                             ZEBRA_RES r = ZEBRA_FAIL;
 666                             switch(action) {
 667                             case 1:
 668                                 r = zebra_insert_record(
 669                                     zh,
 670                                     0, /* recordType */
 671                                     &sysno,
 672                                     0, /* match */
 673                                     0, /* fname */
 674                                     rec->u.octet_aligned->buf,
 675                                     rec->u.octet_aligned->len,
 676                                     0);
 677                                 if (r == ZEBRA_FAIL)
 678                                 {
 679                                     rr->errcode =
 680                                         YAZ_BIB1_ES_IMMEDIATE_EXECUTION_FAILED;
 681                                     rr->errstring = "insert_record failed";
 682                                 }
 683                                 break;
 684                             case 2:
 685                             case 4:
 686                                 r = zebra_update_record(
 687                                     zh,
 688                                     0, /* recordType */
 689                                     &sysno,
 690                                     0, /* match */
 691                                     0, /* fname */
 692                                     rec->u.octet_aligned->buf,
 693                                     rec->u.octet_aligned->len,
 694                                     1);
 695                                 if (r == ZEBRA_FAIL)
 696                                 {
 697                                     rr->errcode =
 698                                         YAZ_BIB1_ES_IMMEDIATE_EXECUTION_FAILED;
 699                                     rr->errstring = "update_record failed";
 700                                 }
 701                                 break;
 702                             case 3:
 703                                 r = zebra_delete_record(
 704                                     zh,
 705                                     0, /* recordType */
 706                                     &sysno,
 707                                     0, /* match */
 708                                     0, /* fname */
 709                                     rec->u.octet_aligned->buf,
 710                                     rec->u.octet_aligned->len,
 711                                     0);
 712                                 if (r == ZEBRA_FAIL)
 713                                 {
 714                                     rr->errcode =
 715                                         YAZ_BIB1_ES_IMMEDIATE_EXECUTION_FAILED;
 716                                     rr->errstring = "delete_record failed";
 717                                 }
 718                                 break;
 719                             }
 720                         }
 721                     }
 722                 }
 723                 zebra_end_trans (zh);
 724             }
 725         }
 726     }
 727     else
 728     {
 729         yaz_log (YLOG_WARN, "Unknown Extended Service(%d)",
 730                  rr->esr->taskSpecificParameters->which);
 731         rr->errcode = YAZ_BIB1_ES_EXTENDED_SERVICE_TYPE_UNSUPP;
 732
 733     }
 734     return 0;
 735 }
 736
 737 static void bend_start (struct statserv_options_block *sob)
 738 {
 739     if (sob->handle)
 740         zebra_stop((ZebraService) sob->handle);
 741     sob->handle = zebra_start(sob->configname);
 742     if (!sob->handle)
 743     {
 744         yaz_log (YLOG_FATAL, "Failed to read config `%s'", sob->configname);
 745         exit (1);
 746     }
 747 #ifdef WIN32
 748
 749 #else
 750     if (!sob->inetd)
 751     {
 752         char pidfname[4096];
 753         struct flock area;
 754         int fd;
 755
 756         zebra_pidfname(sob->handle, pidfname);
 757
 758         fd = open (pidfname, O_EXCL|O_WRONLY|O_CREAT, 0666);
 759         if (fd == -1)
 760         {
 761             if (errno != EEXIST)
 762             {
 763                 yaz_log(YLOG_FATAL|YLOG_ERRNO, "lock file %s", pidfname);
 764                 exit(1);
 765             }
 766             fd = open(pidfname, O_RDWR, 0666);
 767             if (fd == -1)
 768             {
 769                 yaz_log(YLOG_FATAL|YLOG_ERRNO, "lock file %s", pidfname);
 770                 exit(1);
 771             }
 772         }
 773         area.l_type = F_WRLCK;
 774         area.l_whence = SEEK_SET;
 775         area.l_len = area.l_start = 0L;
 776         if (fcntl (fd, F_SETLK, &area) == -1)
 777         {
 778             yaz_log(YLOG_ERRNO|YLOG_FATAL, "Zebra server already running");
 779             exit(1);
 780         }
 781         else
 782         {
 783             char pidstr[30];
 784
 785             sprintf (pidstr, "%ld", (long) getpid ());
 786             write (fd, pidstr, strlen(pidstr));
 787         }
 788     }
 789 #endif
 790 }
 791
 792 static void bend_stop(struct statserv_options_block *sob)
 793 {
 794 #ifdef WIN32
 795
 796 #else
 797     if (!sob->inetd && sob->handle)
 798     {
 799         char pidfname[4096];
 800         zebra_pidfname(sob->handle, pidfname);
 801         unlink (pidfname);
 802     }
 803 #endif
 804     if (sob->handle)
 805     {
 806         ZebraService service = sob->handle;
 807         zebra_stop(service);
 808     }
 809 }
 810
 811 int main (int argc, char **argv)
 812 {
 813     struct statserv_options_block *sob;
 814
 815     sob = statserv_getcontrol ();
 816     strcpy (sob->configname, "zebra.cfg");
 817     sob->bend_start = bend_start;
 818     sob->bend_stop = bend_stop;
 819 #ifdef WIN32
 820     strcpy (sob->service_display_name, "Zebra Server");
 821 #endif
 822     statserv_setcontrol (sob);
 823
 824     return statserv_main (argc, argv, bend_init, bend_close);
 825 }