index/zebrasrv.c

   1 /* $Id: zebrasrv.c,v 1.11 2007-03-13 13:46:11 adam Exp $
   2    Copyright (C) 1995-2007
   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 this program; if not, write to the Free Software
  19 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  20
  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 <yaz/backend.h>
  45 #include <yaz/charneg.h>
  46 #include <idzebra/api.h>
  47
  48 static int bend_sort (void *handle, bend_sort_rr *rr);
  49 static int bend_delete (void *handle, bend_delete_rr *rr);
  50 static int bend_esrequest (void *handle, bend_esrequest_rr *rr);
  51 static int bend_segment (void *handle, bend_segment_rr *rr);
  52 static int bend_search (void *handle, bend_search_rr *r);
  53 static int bend_fetch (void *handle, bend_fetch_rr *r);
  54 static int bend_scan (void *handle, bend_scan_rr *r);
  55
  56 bend_initresult *bend_init (bend_initrequest *q)
  57 {
  58     bend_initresult *r = (bend_initresult *)
  59         odr_malloc (q->stream, sizeof(*r));
  60     ZebraHandle zh;
  61     struct statserv_options_block *sob;
  62     char *user = NULL;
  63     char *passwd = NULL;
  64
  65     r->errcode = 0;
  66     r->errstring = 0;
  67     q->bend_sort = bend_sort;
  68     q->bend_delete = bend_delete;
  69     q->bend_esrequest = bend_esrequest;
  70     q->bend_segment = bend_segment;
  71     q->bend_search = bend_search;
  72     q->bend_fetch = bend_fetch;
  73     q->bend_scan = bend_scan;
  74
  75     q->implementation_name = "Zebra Information Server";
  76     q->implementation_version = "Zebra " ZEBRAVER;
  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     if (q->auth)
  89     {
  90         if (q->auth->which == Z_IdAuthentication_open)
  91         {
  92             char *openpass = xstrdup (q->auth->u.open);
  93             char *cp = strchr (openpass, '/');
  94             if (cp)
  95             {
  96                 *cp = '\0';
  97                 user = nmem_strdup (odr_getmem (q->stream), openpass);
  98                 passwd = nmem_strdup (odr_getmem (q->stream), cp+1);
  99             }
 100             xfree (openpass);
 101         }
 102         else if (q->auth->which == Z_IdAuthentication_idPass)
 103         {
 104             Z_IdPass *idPass = q->auth->u.idPass;
 105
 106             user = idPass->userId;
 107             passwd = idPass->password;
 108         }
 109     }
 110     if (zebra_auth(zh, user, passwd) != ZEBRA_OK)
 111     {
 112         r->errcode = YAZ_BIB1_INIT_AC_BAD_USERID_AND_OR_PASSWORD;
 113         r->errstring = user;
 114         return r;
 115     }
 116     if (q->charneg_request) /* characater set and langauge negotiation? */
 117     {
 118         char **charsets = 0;
 119         int num_charsets;
 120         char **langs = 0;
 121         int num_langs = 0;
 122         int selected = 0;
 123         int i;
 124         NMEM nmem = nmem_create();
 125
 126         yaz_log (YLOG_LOG, "character set and language negotiation");
 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 =
 201         yaz_oidval_to_z3950oid (r->stream, CLASS_USERINFO, VAL_SEARCHRES1);
 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 = 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     r->entries = (struct scan_entry *)
 371         odr_malloc (r->stream, sizeof(*r->entries) * r->num_entries);
 372     res = zebra_scan(zh, r->stream, r->term,
 373                      r->attributeset,
 374                      &r->term_position,
 375                      &r->num_entries, &entries, &is_partial,
 376                      0 /* setname */);
 377     if (res == ZEBRA_OK)
 378     {
 379         if (is_partial)
 380             r->status = BEND_SCAN_PARTIAL;
 381         else
 382             r->status = BEND_SCAN_SUCCESS;
 383         for (i = 0; i < r->num_entries; i++)
 384         {
 385             r->entries[i].term = entries[i].term;
 386             r->entries[i].occurrences =
 387                 CAST_ZINT_TO_INT(entries[i].occurrences);
 388         }
 389     }
 390     else
 391     {
 392         r->status = BEND_SCAN_PARTIAL;
 393         zebra_result(zh, &r->errcode, &r->errstring);
 394     }
 395     return 0;
 396 }
 397
 398 void bend_close (void *handle)
 399 {
 400     zebra_close ((ZebraHandle) handle);
 401     xmalloc_trav("bend_close");
 402     nmem_print_list();
 403 }
 404
 405 int bend_sort (void *handle, bend_sort_rr *rr)
 406 {
 407     ZebraHandle zh = (ZebraHandle) handle;
 408
 409     if (zebra_sort (zh, rr->stream,
 410                     rr->num_input_setnames, (const char **) rr->input_setnames,
 411                     rr->output_setname, rr->sort_sequence, &rr->sort_status)
 412         != ZEBRA_OK)
 413         zebra_result (zh, &rr->errcode, &rr->errstring);
 414     return 0;
 415 }
 416
 417 int bend_delete (void *handle, bend_delete_rr *rr)
 418 {
 419     ZebraHandle zh = (ZebraHandle) handle;
 420
 421     rr->delete_status = zebra_deleteResultSet(zh, rr->function,
 422                                               rr->num_setnames, rr->setnames,
 423                                               rr->statuses);
 424     return 0;
 425 }
 426
 427 static void es_admin_request (bend_esrequest_rr *rr, ZebraHandle zh, Z_AdminEsRequest *r)
 428 {
 429     ZEBRA_RES res = ZEBRA_OK;
 430     if (r->toKeep->databaseName)
 431     {
 432         yaz_log(YLOG_LOG, "adm request database %s", r->toKeep->databaseName);
 433     }
 434     switch (r->toKeep->which)
 435     {
 436     case Z_ESAdminOriginPartToKeep_reIndex:
 437         yaz_log(YLOG_LOG, "adm-reindex");
 438         rr->errcode = YAZ_BIB1_ES_IMMEDIATE_EXECUTION_FAILED;
 439         rr->errstring = "adm-reindex not implemented yet";
 440         break;
 441     case Z_ESAdminOriginPartToKeep_truncate:
 442         rr->errcode = YAZ_BIB1_ES_IMMEDIATE_EXECUTION_FAILED;
 443         rr->errstring = "adm-reindex not implemented yet";
 444         yaz_log(YLOG_LOG, "adm-truncate");
 445         break;
 446     case Z_ESAdminOriginPartToKeep_drop:
 447         yaz_log(YLOG_LOG, "adm-drop");
 448         res = zebra_drop_database (zh, r->toKeep->databaseName);
 449         break;
 450     case Z_ESAdminOriginPartToKeep_create:
 451         yaz_log(YLOG_LOG, "adm-create %s", r->toKeep->databaseName);
 452         res = zebra_create_database (zh, r->toKeep->databaseName);
 453         break;
 454     case Z_ESAdminOriginPartToKeep_import:
 455         yaz_log(YLOG_LOG, "adm-import");
 456         res = zebra_admin_import_begin (zh, r->toKeep->databaseName,
 457                                         r->toKeep->u.import->recordType);
 458         break;
 459     case Z_ESAdminOriginPartToKeep_refresh:
 460         yaz_log(YLOG_LOG, "adm-refresh");
 461         break;
 462     case Z_ESAdminOriginPartToKeep_commit:
 463         yaz_log(YLOG_LOG, "adm-commit");
 464         if (r->toKeep->databaseName)
 465         {
 466             if (zebra_select_database(zh, r->toKeep->databaseName) !=
 467                 ZEBRA_OK)
 468                 yaz_log(YLOG_WARN, "zebra_select_database failed in "
 469                         "adm-commit");
 470         }
 471         zebra_commit(zh);
 472         break;
 473     case Z_ESAdminOriginPartToKeep_shutdown:
 474         yaz_log(YLOG_LOG, "shutdown");
 475         res = zebra_admin_shutdown(zh);
 476         break;
 477     case Z_ESAdminOriginPartToKeep_start:
 478         yaz_log(YLOG_LOG, "start");
 479         zebra_admin_start(zh);
 480         break;
 481     default:
 482         yaz_log(YLOG_LOG, "unknown admin");
 483         rr->errcode = YAZ_BIB1_ES_IMMEDIATE_EXECUTION_FAILED;
 484         rr->errstring = "adm-reindex not implemented yet";
 485     }
 486     if (res != ZEBRA_OK)
 487         zebra_result(zh, &rr->errcode, &rr->errstring);
 488 }
 489
 490 static void es_admin (bend_esrequest_rr *rr, ZebraHandle zh, Z_Admin *r)
 491 {
 492     switch (r->which)
 493     {
 494     case Z_Admin_esRequest:
 495         es_admin_request (rr, zh, r->u.esRequest);
 496         return;
 497     default:
 498         break;
 499     }
 500         yaz_log (YLOG_WARN, "adm taskpackage (unhandled)");
 501     rr->errcode = YAZ_BIB1_ES_IMMEDIATE_EXECUTION_FAILED;
 502     rr->errstring = "adm-task package (unhandled)";
 503 }
 504
 505 int bend_segment (void *handle, bend_segment_rr *rr)
 506 {
 507     ZebraHandle zh = (ZebraHandle) handle;
 508     Z_Segment *segment = rr->segment;
 509
 510     if (segment->num_segmentRecords)
 511         zebra_admin_import_segment (zh, rr->segment);
 512     else
 513         zebra_admin_import_end (zh);
 514     return 0;
 515 }
 516
 517 int bend_esrequest (void *handle, bend_esrequest_rr *rr)
 518 {
 519     ZebraHandle zh = (ZebraHandle) handle;
 520
 521     yaz_log(YLOG_LOG, "function: %d", *rr->esr->function);
 522     if (rr->esr->packageName)
 523         yaz_log(YLOG_LOG, "packagename: %s", rr->esr->packageName);
 524     yaz_log(YLOG_LOG, "Waitaction: %d", *rr->esr->waitAction);
 525
 526     if (!rr->esr->taskSpecificParameters)
 527     {
 528         yaz_log (YLOG_WARN, "No task specific parameters");
 529     }
 530     else if (rr->esr->taskSpecificParameters->which == Z_External_ESAdmin)
 531     {
 532         es_admin(rr, zh, rr->esr->taskSpecificParameters->u.adminService);
 533     }
 534     else if (rr->esr->taskSpecificParameters->which == Z_External_update)
 535     {
 536         Z_IUUpdate *up = rr->esr->taskSpecificParameters->u.update;
 537         yaz_log (YLOG_LOG, "Received DB Update");
 538         if (up->which == Z_IUUpdate_esRequest)
 539         {
 540             Z_IUUpdateEsRequest *esRequest = up->u.esRequest;
 541             Z_IUOriginPartToKeep *toKeep = esRequest->toKeep;
 542             Z_IUSuppliedRecords *notToKeep = esRequest->notToKeep;
 543
 544             yaz_log (YLOG_LOG, "action");
 545             if (toKeep->action)
 546             {
 547                 switch (*toKeep->action)
 548                 {
 549                 case Z_IUOriginPartToKeep_recordInsert:
 550                     yaz_log (YLOG_LOG, "recordInsert");
 551                     break;
 552                 case Z_IUOriginPartToKeep_recordReplace:
 553                     yaz_log (YLOG_LOG, "recordUpdate");
 554                     break;
 555                 case Z_IUOriginPartToKeep_recordDelete:
 556                     yaz_log (YLOG_LOG, "recordDelete");
 557                     break;
 558                 case Z_IUOriginPartToKeep_elementUpdate:
 559                     yaz_log (YLOG_LOG, "elementUpdate");
 560                     break;
 561                 case Z_IUOriginPartToKeep_specialUpdate:
 562                     yaz_log (YLOG_LOG, "specialUpdate");
 563                     break;
 564                 case Z_ESAdminOriginPartToKeep_shutdown:
 565                     yaz_log (YLOG_LOG, "shutDown");
 566                     break;
 567                 case Z_ESAdminOriginPartToKeep_start:
 568                     yaz_log (YLOG_LOG, "start");
 569                     break;
 570                 default:
 571                     yaz_log (YLOG_LOG, " unknown (%d)", *toKeep->action);
 572                 }
 573             }
 574             if (toKeep->databaseName)
 575             {
 576                 yaz_log (YLOG_LOG, "database: %s", toKeep->databaseName);
 577
 578                 if (zebra_select_database(zh, toKeep->databaseName))
 579                     return 0;
 580             }
 581             else
 582             {
 583                 yaz_log (YLOG_WARN, "no database supplied for ES Update");
 584                 rr->errcode =
 585                     YAZ_BIB1_ES_MISSING_MANDATORY_PARAMETER_FOR_SPECIFIED_FUNCTION_;
 586                 rr->errstring = "database";
 587                 return 0;
 588             }
 589             if (zebra_begin_trans(zh, 1) != ZEBRA_OK)
 590             {
 591                 zebra_result(zh, &rr->errcode, &rr->errstring);
 592             }
 593             else
 594             {
 595                 int i;
 596                 for (i = 0; notToKeep && i < notToKeep->num; i++)
 597                 {
 598                     Z_External *rec = notToKeep->elements[i]->record;
 599                     struct oident *oident = 0;
 600                     Odr_oct *opaque_recid = 0;
 601                     zint *sysno = 0;
 602                     zint sysno_tmp;
 603
 604                     if (notToKeep->elements[i]->u.opaque)
 605                     {
 606                         switch(notToKeep->elements[i]->which)
 607                         {
 608                         case Z_IUSuppliedRecords_elem_opaque:
 609                             opaque_recid = notToKeep->elements[i]->u.opaque;
 610                             break; /* OK, recid already set */
 611                         case Z_IUSuppliedRecords_elem_number:
 612                             sysno_tmp = *notToKeep->elements[i]->u.number;
 613                             sysno = &sysno_tmp;
 614                             break;
 615                         }
 616                     }
 617                     if (rec->direct_reference)
 618                     {
 619                         oident = oid_getentbyoid(rec->direct_reference);
 620                         if (oident)
 621                             yaz_log (YLOG_LOG, "record %d type %s", i,
 622                                      oident->desc);
 623                     }
 624                     switch (rec->which)
 625                     {
 626                     case Z_External_sutrs:
 627                         if (rec->u.octet_aligned->len > 170)
 628                             yaz_log (YLOG_LOG, "%d bytes:\n%.168s ...",
 629                                      rec->u.sutrs->len,
 630                                      rec->u.sutrs->buf);
 631                         else
 632                             yaz_log (YLOG_LOG, "%d bytes:\n%s",
 633                                      rec->u.sutrs->len,
 634                                      rec->u.sutrs->buf);
 635                         break;
 636                     case Z_External_octet:
 637                         if (rec->u.octet_aligned->len > 170)
 638                             yaz_log (YLOG_LOG, "%d bytes:\n%.168s ...",
 639                                      rec->u.octet_aligned->len,
 640                                      rec->u.octet_aligned->buf);
 641                         else
 642                             yaz_log (YLOG_LOG, "%d bytes\n%s",
 643                                      rec->u.octet_aligned->len,
 644                                      rec->u.octet_aligned->buf);
 645                     }
 646                     if (oident && oident->value != VAL_TEXT_XML
 647                         && oident->value != VAL_SUTRS)
 648                     {
 649                         rr->errcode = YAZ_BIB1_ES_IMMEDIATE_EXECUTION_FAILED;
 650                         rr->errstring = "only XML update supported";
 651                         break;
 652                     }
 653                     if (rec->which == Z_External_octet)
 654                     {
 655                         int action = 0;
 656
 657                         if (*toKeep->action ==
 658                             Z_IUOriginPartToKeep_recordInsert)
 659                             action = 1;
 660                         if (*toKeep->action ==
 661                             Z_IUOriginPartToKeep_recordReplace)
 662                             action = 2;
 663                         if (*toKeep->action ==
 664                             Z_IUOriginPartToKeep_recordDelete)
 665                             action = 3;
 666                         if (*toKeep->action ==
 667                             Z_IUOriginPartToKeep_specialUpdate)
 668                             action = 4;
 669
 670                         if (!action)
 671                         {
 672                             rr->errcode =
 673                                 YAZ_BIB1_ES_IMMEDIATE_EXECUTION_FAILED;
 674                             rr->errstring = "unsupported ES Update action";
 675                             break;
 676                         }
 677                         else if (opaque_recid)
 678                         {
 679                             int r = zebra_admin_exchange_record (
 680                                 zh,
 681                                 (const char *) rec->u.octet_aligned->buf,
 682                                 rec->u.octet_aligned->len,
 683                                 (const char *) opaque_recid->buf,
 684                                 opaque_recid->len,
 685                                 action);
 686                             if (r)
 687                             {
 688                                 zebra_result(zh, &rr->errcode,
 689                                              &rr->errstring);
 690                                 break;
 691                             }
 692                         }
 693                         else
 694                         {
 695                             ZEBRA_RES r = ZEBRA_FAIL;
 696                             switch(action) {
 697                             case 1:
 698                                 r = zebra_insert_record(
 699                                     zh,
 700                                     0, /* recordType */
 701                                     sysno,
 702                                     0, /* match */
 703                                     0, /* fname */
 704                                     (const char *) rec->u.octet_aligned->buf,
 705                                     rec->u.octet_aligned->len,
 706                                     0);
 707                                 if (r == ZEBRA_FAIL)
 708                                 {
 709                                     rr->errcode =
 710                                         YAZ_BIB1_ES_IMMEDIATE_EXECUTION_FAILED;
 711                                     rr->errstring = "insert_record failed";
 712                                 }
 713                                 break;
 714                             case 2:
 715                                 r = zebra_update_record(
 716                                     zh,
 717                                     0, /* recordType */
 718                                     sysno,
 719                                     0, /* match */
 720                                     0, /* fname */
 721                                     (const char *) rec->u.octet_aligned->buf,
 722                                     rec->u.octet_aligned->len,
 723                                     0  /* force_update=0: action is a replace, so abort update if no corresponding record exists */
 724                                     );
 725                                 if (r == ZEBRA_FAIL)
 726                                 {
 727                                     rr->errcode =
 728                                         YAZ_BIB1_ES_IMMEDIATE_EXECUTION_FAILED;
 729                                     rr->errstring = "update_record failed";
 730                                 }
 731                                 break;
 732                             case 3:
 733                                 r = zebra_delete_record(
 734                                     zh,
 735                                     0, /* recordType */
 736                                     sysno,
 737                                     0, /* match */
 738                                     0, /* fname */
 739                                     (const char *) rec->u.octet_aligned->buf,
 740                                     rec->u.octet_aligned->len,
 741                                     0);
 742                                 if (r == ZEBRA_FAIL)
 743                                 {
 744                                     rr->errcode =
 745                                         YAZ_BIB1_ES_IMMEDIATE_EXECUTION_FAILED;
 746                                     rr->errstring = "delete_record failed";
 747                                 }
 748                                 break;
 749                             case 4:
 750                                 r = zebra_update_record(
 751                                     zh,
 752                                     0, /* recordType */
 753                                     sysno,
 754                                     0, /* match */
 755                                     0, /* fname */
 756                                     (const char *) rec->u.octet_aligned->buf,
 757                                     rec->u.octet_aligned->len,
 758                                     1  /* force_update=1: action is a specialUpdate, so allow replace or insert */
 759                                     );
 760                                 if (r == ZEBRA_FAIL)
 761                                 {
 762                                     rr->errcode =
 763                                         YAZ_BIB1_ES_IMMEDIATE_EXECUTION_FAILED;
 764                                     rr->errstring = "update_record failed";
 765                                 }
 766                                 break;
 767                             }
 768                         }
 769                     }
 770                 }
 771                 if (zebra_end_trans (zh) != ZEBRA_OK)
 772                 {
 773                     yaz_log(YLOG_WARN, "zebra_end_trans failed for"
 774                             " extended service operation");
 775                 }
 776             }
 777         }
 778     }
 779     else
 780     {
 781         yaz_log (YLOG_WARN, "Unknown Extended Service(%d)",
 782                  rr->esr->taskSpecificParameters->which);
 783         rr->errcode = YAZ_BIB1_ES_EXTENDED_SERVICE_TYPE_UNSUPP;
 784
 785     }
 786     return 0;
 787 }
 788
 789 static void bend_start (struct statserv_options_block *sob)
 790 {
 791     Res default_res = res_open(0, 0);
 792
 793     if (sob->handle)
 794         zebra_stop((ZebraService) sob->handle);
 795     res_set(default_res, "profilePath", DEFAULT_PROFILE_PATH);
 796     res_set(default_res, "modulePath", DEFAULT_MODULE_PATH);
 797     sob->handle = zebra_start_res(sob->configname, default_res, 0);
 798     res_close(default_res);
 799     if (!sob->handle)
 800     {
 801         yaz_log (YLOG_FATAL, "Failed to read config `%s'", sob->configname);
 802         exit (1);
 803     }
 804 #ifdef WIN32
 805
 806 #else
 807     if (!sob->inetd)
 808     {
 809         char pidfname[4096];
 810         struct flock area;
 811         int fd;
 812
 813         zebra_pidfname(sob->handle, pidfname);
 814
 815         fd = open (pidfname, O_EXCL|O_WRONLY|O_CREAT, 0666);
 816         if (fd == -1)
 817         {
 818             if (errno != EEXIST)
 819             {
 820                 yaz_log(YLOG_FATAL|YLOG_ERRNO, "lock file %s", pidfname);
 821                 exit(1);
 822             }
 823             fd = open(pidfname, O_RDWR, 0666);
 824             if (fd == -1)
 825             {
 826                 yaz_log(YLOG_FATAL|YLOG_ERRNO, "lock file %s", pidfname);
 827                 exit(1);
 828             }
 829         }
 830         area.l_type = F_WRLCK;
 831         area.l_whence = SEEK_SET;
 832         area.l_len = area.l_start = 0L;
 833         if (fcntl (fd, F_SETLK, &area) == -1)
 834         {
 835             yaz_log(YLOG_ERRNO|YLOG_FATAL, "Zebra server already running");
 836             exit(1);
 837         }
 838         else
 839         {
 840             char pidstr[30];
 841
 842             sprintf (pidstr, "%ld", (long) getpid ());
 843             write (fd, pidstr, strlen(pidstr));
 844         }
 845     }
 846 #endif
 847 }
 848
 849 static void bend_stop(struct statserv_options_block *sob)
 850 {
 851 #ifdef WIN32
 852
 853 #else
 854     if (!sob->inetd && sob->handle)
 855     {
 856         char pidfname[4096];
 857         zebra_pidfname(sob->handle, pidfname);
 858         unlink (pidfname);
 859     }
 860 #endif
 861     if (sob->handle)
 862     {
 863         ZebraService service = sob->handle;
 864         zebra_stop(service);
 865     }
 866 }
 867
 868 int main (int argc, char **argv)
 869 {
 870     struct statserv_options_block *sob;
 871
 872     sob = statserv_getcontrol ();
 873     strcpy (sob->configname, "zebra.cfg");
 874     sob->bend_start = bend_start;
 875     sob->bend_stop = bend_stop;
 876 #ifdef WIN32
 877     strcpy (sob->service_display_name, "Zebra Server");
 878 #endif
 879     statserv_setcontrol (sob);
 880
 881     return statserv_main (argc, argv, bend_init, bend_close);
 882 }
 883 /*
 884  * Local variables:
 885  * c-basic-offset: 4
 886  * indent-tabs-mode: nil
 887  * End:
 888  * vim: shiftwidth=4 tabstop=8 expandtab
 889  */
 890