index/zebrasrv.c

   1 /* This file is part of the Zebra server.
   2    Copyright (C) 1994-2011 Index Data
   3
   4 Zebra is free software; you can redistribute it and/or modify it under
   5 the terms of the GNU General Public License as published by the Free
   6 Software Foundation; either version 2, or (at your option) any later
   7 version.
   8
   9 Zebra is distributed in the hope that it will be useful, but WITHOUT ANY
  10 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12 for more details.
  13
  14 You should have received a copy of the GNU General Public License
  15 along with this program; if not, write to the Free Software
  16 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  17
  18 */
  19
  20 #if HAVE_CONFIG_H
  21 #include <config.h>
  22 #endif
  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/yaz-version.h>
  41 #include <yaz/diagbib1.h>
  42 #include <yaz/querytowrbuf.h>
  43 #include <yaz/pquery.h>
  44 #include <sys/types.h>
  45
  46 #include <yaz/backend.h>
  47 #include <yaz/charneg.h>
  48 #include <idzebra/api.h>
  49
  50 static int bend_sort(void *handle, bend_sort_rr *rr);
  51 static int bend_delete(void *handle, bend_delete_rr *rr);
  52 static int bend_esrequest(void *handle, bend_esrequest_rr *rr);
  53 static int bend_segment(void *handle, bend_segment_rr *rr);
  54 static int bend_search(void *handle, bend_search_rr *r);
  55 static int bend_fetch(void *handle, bend_fetch_rr *r);
  56 static int bend_scan(void *handle, bend_scan_rr *r);
  57
  58 bend_initresult *bend_init(bend_initrequest *q)
  59 {
  60     bend_initresult *r = (bend_initresult *)
  61         odr_malloc(q->stream, sizeof(*r));
  62     ZebraHandle zh;
  63     struct statserv_options_block *sob;
  64     char *user = NULL;
  65     char *passwd = NULL;
  66     char version_str[16];
  67
  68     r->errcode = 0;
  69     r->errstring = 0;
  70     q->bend_sort = bend_sort;
  71     q->bend_delete = bend_delete;
  72     q->bend_esrequest = bend_esrequest;
  73     q->bend_segment = bend_segment;
  74     q->bend_search = bend_search;
  75     q->bend_fetch = bend_fetch;
  76     q->bend_scan = bend_scan;
  77
  78     zebra_get_version(version_str, 0);
  79
  80     q->implementation_name = "Zebra Information Server";
  81     q->implementation_version = odr_strdup(q->stream, version_str);
  82
  83     yaz_log(YLOG_DEBUG, "bend_init");
  84
  85     sob = statserv_getcontrol();
  86     if (!(zh = zebra_open(sob->handle, 0)))
  87     {
  88         yaz_log(YLOG_WARN, "Failed to read config `%s'", sob->configname);
  89         r->errcode = YAZ_BIB1_PERMANENT_SYSTEM_ERROR;
  90         return r;
  91     }
  92     r->handle = zh;
  93
  94     q->query_charset = odr_strdup(q->stream, zebra_get_encoding(zh));
  95     if (q->auth)
  96     {
  97         if (q->auth->which == Z_IdAuthentication_open)
  98         {
  99             char *openpass = xstrdup(q->auth->u.open);
 100             char *cp = strchr(openpass, '/');
 101             if (cp)
 102             {
 103                 *cp = '\0';
 104                 user = nmem_strdup(odr_getmem(q->stream), openpass);
 105                 passwd = nmem_strdup(odr_getmem(q->stream), cp+1);
 106             }
 107             xfree(openpass);
 108         }
 109         else if (q->auth->which == Z_IdAuthentication_idPass)
 110         {
 111             Z_IdPass *idPass = q->auth->u.idPass;
 112
 113             user = idPass->userId;
 114             passwd = idPass->password;
 115         }
 116     }
 117     if (zebra_auth(zh, user, passwd) != ZEBRA_OK)
 118     {
 119         r->errcode = YAZ_BIB1_INIT_AC_BAD_USERID_AND_OR_PASSWORD;
 120         r->errstring = user;
 121         return r;
 122     }
 123     if (q->charneg_request) /* characater set and language negotiation? */
 124     {
 125         char **charsets = 0;
 126         int num_charsets;
 127         char **langs = 0;
 128         int num_langs = 0;
 129         int selected = 0;
 130         int i;
 131         NMEM nmem = nmem_create();
 132
 133         yaz_get_proposal_charneg(nmem, q->charneg_request,
 134                                  &charsets, &num_charsets,
 135                                  &langs, &num_langs, &selected);
 136
 137         for (i = 0; i < num_charsets; i++)
 138         {
 139             const char *right_name = "";
 140             /*
 141              * FIXME! It is like rudiment :-))
 142              * We have to support this short names of character sets,
 143              * because a lot servers in Russia to use own in during
 144              * character set and language negotiation still.
 145              */
 146
 147             if (!yaz_matchstr(charsets[i], "win")) {
 148                 right_name = "WINDOWS-1251";
 149             } else if (!yaz_matchstr(charsets[i], "koi")) {
 150                 right_name = "KOI8-R";
 151             } else if (!yaz_matchstr(charsets[i], "iso")) {
 152                 right_name = "ISO-8859-5";
 153             } else if (!yaz_matchstr(charsets[i], "dos")) {
 154                 right_name = "CP866";
 155             } else if (!yaz_matchstr(charsets[i], "uni")) {
 156                 right_name = "UTF-8";
 157             } else {
 158                 right_name = charsets[i];
 159             }
 160             if (odr_set_charset(q->decode, "UTF-8", right_name) == 0)
 161             {
 162                 yaz_log(YLOG_LOG, "charset %d %s (proper name %s): OK", i,
 163                         charsets[i], right_name);
 164                 odr_set_charset(q->stream, right_name, "UTF-8");
 165                 if (selected)
 166                     zebra_record_encoding(zh, right_name);
 167                 zebra_octet_term_encoding(zh, right_name);
 168                 q->charneg_response =
 169                     yaz_set_response_charneg(q->stream, charsets[i],
 170                                              0, selected);
 171                 break;
 172             } else {
 173                 yaz_log(YLOG_LOG, "charset %d %s (proper name %s): unsupported", i,
 174                         charsets[i], right_name);
 175             }
 176         }
 177         nmem_destroy(nmem);
 178     }
 179     return r;
 180 }
 181
 182 static void search_terms(ZebraHandle zh, bend_search_rr *r)
 183 {
 184     int no_terms;
 185     int i;
 186     int type = Z_Term_general;
 187     struct Z_External *ext;
 188     Z_SearchInfoReport *sr;
 189
 190     zebra_result_set_term_no(zh, r->setname, &no_terms);
 191     if (!no_terms)
 192         return;
 193
 194     r->search_info = odr_malloc(r->stream, sizeof(*r->search_info));
 195
 196     r->search_info->num_elements = 1;
 197     r->search_info->list =
 198         odr_malloc(r->stream, sizeof(*r->search_info->list));
 199     r->search_info->list[0] =
 200         odr_malloc(r->stream, sizeof(**r->search_info->list));
 201     r->search_info->list[0]->category = 0;
 202     r->search_info->list[0]->which = Z_OtherInfo_externallyDefinedInfo;
 203     ext = odr_malloc(r->stream, sizeof(*ext));
 204     r->search_info->list[0]->information.externallyDefinedInfo = ext;
 205     ext->direct_reference = odr_oiddup(r->stream,
 206                                        yaz_oid_userinfo_searchresult_1);
 207     ext->indirect_reference = 0;
 208     ext->descriptor = 0;
 209     ext->which = Z_External_searchResult1;
 210     sr = odr_malloc(r->stream, sizeof(Z_SearchInfoReport));
 211     ext->u.searchResult1 = sr;
 212     sr->num = no_terms;
 213     sr->elements = odr_malloc(r->stream, sr->num *
 214                                sizeof(*sr->elements));
 215     for (i = 0; i<no_terms; i++)
 216     {
 217         Z_SearchInfoReport_s *se;
 218         Z_Term *term;
 219         zint count;
 220         int approx;
 221         char outbuf[1024];
 222         size_t len = sizeof(outbuf);
 223         const char *term_ref_id = 0;
 224
 225         zebra_result_set_term_info(zh, r->setname, i,
 226                                    &count, &approx, outbuf, &len,
 227                                    &term_ref_id);
 228         se = sr->elements[i] = odr_malloc(r->stream, sizeof(**sr->elements));
 229         se->subqueryId = term_ref_id ?
 230             odr_strdup(r->stream, term_ref_id) : 0;
 231
 232         se->fullQuery = odr_booldup(r->stream, 0);
 233         se->subqueryExpression =
 234             odr_malloc(r->stream, sizeof(Z_QueryExpression));
 235         se->subqueryExpression->which =
 236             Z_QueryExpression_term;
 237         se->subqueryExpression->u.term =
 238             odr_malloc(r->stream, sizeof(Z_QueryExpressionTerm));
 239         term = odr_malloc(r->stream, sizeof(Z_Term));
 240         se->subqueryExpression->u.term->queryTerm = term;
 241         switch (type)
 242         {
 243         case Z_Term_characterString:
 244             term->which = Z_Term_characterString;
 245             term->u.characterString = odr_strdup(r->stream, outbuf);
 246             break;
 247         case Z_Term_general:
 248             term->which = Z_Term_general;
 249             term->u.general = odr_malloc(r->stream, sizeof(*term->u.general));
 250             term->u.general->size = term->u.general->len = len;
 251             term->u.general->buf = odr_malloc(r->stream, len);
 252             memcpy(term->u.general->buf, outbuf, len);
 253             break;
 254         default:
 255             term->which = Z_Term_general;
 256             term->u.null = odr_nullval();
 257         }
 258         se->subqueryExpression->u.term->termComment = 0;
 259         se->subqueryInterpretation = 0;
 260         se->subqueryRecommendation = 0;
 261         se->subqueryCount = odr_intdup(r->stream, count);
 262         se->subqueryWeight = 0;
 263         se->resultsByDB = 0;
 264     }
 265 }
 266
 267 static int break_handler(void *client_data)
 268 {
 269     bend_association assoc =(bend_association) client_data;
 270     if (!bend_assoc_is_alive(assoc))
 271         return 1;
 272     return 0;
 273 }
 274
 275 static Z_RPNQuery *query_add_sortkeys(ODR o, Z_RPNQuery *query,
 276                                       const char *sortKeys)
 277 {
 278 #if YAZ_VERSIONL >= 0x40200
 279     /* sortkey layour: path,schema,ascending,caseSensitive,missingValue */
 280     /* see cql_sortby_to_sortkeys of YAZ. */
 281     char **sortspec;
 282     int num_sortspec = 0;
 283     int i;
 284
 285     if (sortKeys)
 286         nmem_strsplit_blank(odr_getmem(o), sortKeys, &sortspec, &num_sortspec);
 287     if (num_sortspec > 0)
 288     {
 289         Z_RPNQuery *nquery;
 290         WRBUF w = wrbuf_alloc();
 291
 292         /* left operand 'd' will be replaced by original query */
 293         wrbuf_puts(w, "@or d");
 294         for (i = 0; i < num_sortspec; i++)
 295         {
 296             char **arg;
 297             int num_arg;
 298             int ascending = 1;
 299             nmem_strsplitx(odr_getmem(o), ",", sortspec[i], &arg, &num_arg, 0);
 300
 301             if (num_arg != 5)
 302             {
 303                 yaz_log(YLOG_WARN, "Invalid sort spec '%s' num_arg=%d",
 304                         sortspec[i], num_arg);
 305                 break;
 306             }
 307             if (arg[2][0])
 308                 ascending = atoi(arg[2]);
 309
 310             if (i < num_sortspec-1)
 311                 wrbuf_puts(w, " @or");
 312             wrbuf_puts(w, " @attr 1=");
 313             yaz_encode_pqf_term(w, arg[0], strlen(arg[0]));
 314             wrbuf_printf(w, "@attr 7=%d %d", ascending ? 1 : 2, i);
 315         }
 316         nquery = p_query_rpn(o, wrbuf_cstr(w));
 317         if (!nquery)
 318         {
 319             yaz_log(YLOG_WARN, "query_add_sortkeys: bad RPN: '%s'",
 320                     wrbuf_cstr(w));
 321         }
 322         else
 323         {
 324             Z_RPNStructure *s = nquery->RPNStructure;
 325
 326             if (s->which != Z_RPNStructure_complex)
 327             {
 328                 yaz_log(YLOG_WARN, "query_add_sortkeys: not complex operand");
 329             }
 330             else
 331             {
 332                 /* left operand 'd' is replaced by origial query */
 333                 s->u.complex->s1 = query->RPNStructure;
 334                 /* and original query points to our new or+sort things */
 335                 query->RPNStructure = s;
 336             }
 337         }
 338         wrbuf_destroy(w);
 339     }
 340 #else
 341     if (sortKeys)
 342     {
 343         yaz_log(YLOG_WARN, "sortkeys ignored because YAZ version < 4.2.0");
 344     }
 345 #endif
 346     return query;
 347 }
 348
 349 int bend_search(void *handle, bend_search_rr *r)
 350 {
 351     ZebraHandle zh = (ZebraHandle) handle;
 352     zint zhits = 0;
 353     ZEBRA_RES res;
 354     Z_RPNQuery *q2;
 355
 356     res = zebra_select_databases(zh, r->num_bases,
 357                                   (const char **) r->basenames);
 358     if (res != ZEBRA_OK)
 359     {
 360         zebra_result(zh, &r->errcode, &r->errstring);
 361         return 0;
 362     }
 363     zebra_set_break_handler(zh, break_handler, r->association);
 364     yaz_log(YLOG_DEBUG, "ResultSet '%s'", r->setname);
 365     switch (r->query->which)
 366     {
 367     case Z_Query_type_1: case Z_Query_type_101:
 368         q2 = query_add_sortkeys(r->stream, r->query->u.type_1, r->srw_sortKeys);
 369         res = zebra_search_RPN_x(zh, r->stream, q2,
 370                                  r->setname, &zhits,
 371                                  &r->estimated_hit_count,
 372                                  &r->partial_resultset);
 373         if (res != ZEBRA_OK)
 374             zebra_result(zh, &r->errcode, &r->errstring);
 375         else
 376         {
 377             r->hits = zhits;
 378             search_terms(zh, r);
 379         }
 380         break;
 381     case Z_Query_type_2:
 382         r->errcode = YAZ_BIB1_QUERY_TYPE_UNSUPP;
 383         r->errstring = "type-2";
 384         break;
 385     default:
 386         r->errcode = YAZ_BIB1_QUERY_TYPE_UNSUPP;
 387     }
 388     zebra_set_break_handler(zh, 0, 0);
 389     return 0;
 390 }
 391
 392
 393 int bend_fetch(void *handle, bend_fetch_rr *r)
 394 {
 395     ZebraHandle zh = (ZebraHandle) handle;
 396     ZebraRetrievalRecord retrievalRecord;
 397     ZEBRA_RES res;
 398
 399     retrievalRecord.position = r->number;
 400
 401     r->last_in_set = 0;
 402     res = zebra_records_retrieve(zh, r->stream, r->setname, r->comp,
 403                                   r->request_format, 1, &retrievalRecord);
 404     if (res != ZEBRA_OK)
 405     {
 406         /* non-surrogate diagnostic */
 407         zebra_result(zh, &r->errcode, &r->errstring);
 408     }
 409     else if (retrievalRecord.errCode)
 410     {
 411         /* surrogate diagnostic (diagnostic per record) */
 412         r->surrogate_flag = 1;
 413         r->errcode = retrievalRecord.errCode;
 414         r->errstring = retrievalRecord.errString;
 415         r->basename = retrievalRecord.base;
 416     }
 417     else
 418     {
 419         r->basename = retrievalRecord.base;
 420         r->record = retrievalRecord.buf;
 421         r->len = retrievalRecord.len;
 422         r->output_format = odr_oiddup(r->stream, retrievalRecord.format);
 423     }
 424     return 0;
 425 }
 426
 427 static int bend_scan(void *handle, bend_scan_rr *r)
 428 {
 429     ZebraScanEntry *entries;
 430     ZebraHandle zh = (ZebraHandle) handle;
 431     int is_partial, i;
 432     ZEBRA_RES res;
 433
 434     res = zebra_select_databases(zh, r->num_bases,
 435                                  (const char **) r->basenames);
 436     if (res != ZEBRA_OK)
 437     {
 438         zebra_result(zh, &r->errcode, &r->errstring);
 439         return 0;
 440     }
 441     if (r->step_size != 0 && *r->step_size != 0) {
 442         r->errcode = YAZ_BIB1_ONLY_ZERO_STEP_SIZE_SUPPORTED_FOR_SCAN;
 443         r->errstring = 0;
 444         return 0;
 445     }
 446     res = zebra_scan(zh, r->stream, r->term,
 447                      r->attributeset,
 448                      &r->term_position,
 449                      &r->num_entries, &entries, &is_partial,
 450                      0 /* setname */);
 451     if (res == ZEBRA_OK)
 452     {
 453         if (is_partial)
 454             r->status = BEND_SCAN_PARTIAL;
 455         else
 456             r->status = BEND_SCAN_SUCCESS;
 457         for (i = 0; i < r->num_entries; i++)
 458         {
 459             r->entries[i].term = entries[i].term;
 460             r->entries[i].display_term = entries[i].display_term;
 461             r->entries[i].occurrences = entries[i].occurrences;
 462         }
 463     }
 464     else
 465     {
 466         r->status = BEND_SCAN_PARTIAL;
 467         zebra_result(zh, &r->errcode, &r->errstring);
 468     }
 469     return 0;
 470 }
 471
 472 void bend_close(void *handle)
 473 {
 474     zebra_close((ZebraHandle) handle);
 475     xmalloc_trav("bend_close");
 476 }
 477
 478 int bend_sort(void *handle, bend_sort_rr *rr)
 479 {
 480     ZebraHandle zh = (ZebraHandle) handle;
 481
 482     if (zebra_sort(zh, rr->stream,
 483                     rr->num_input_setnames, (const char **) rr->input_setnames,
 484                     rr->output_setname, rr->sort_sequence, &rr->sort_status)
 485         != ZEBRA_OK)
 486         zebra_result(zh, &rr->errcode, &rr->errstring);
 487     return 0;
 488 }
 489
 490 int bend_delete(void *handle, bend_delete_rr *rr)
 491 {
 492     ZebraHandle zh = (ZebraHandle) handle;
 493
 494     rr->delete_status = zebra_deleteResultSet(zh, rr->function,
 495                                               rr->num_setnames, rr->setnames,
 496                                               rr->statuses);
 497     return 0;
 498 }
 499
 500 static void es_admin_request(bend_esrequest_rr *rr, ZebraHandle zh, Z_AdminEsRequest *r)
 501 {
 502     ZEBRA_RES res = ZEBRA_OK;
 503     if (r->toKeep->databaseName)
 504     {
 505         yaz_log(YLOG_LOG, "adm request database %s", r->toKeep->databaseName);
 506     }
 507     switch (r->toKeep->which)
 508     {
 509     case Z_ESAdminOriginPartToKeep_reIndex:
 510         yaz_log(YLOG_LOG, "adm-reindex");
 511         rr->errcode = YAZ_BIB1_ES_IMMEDIATE_EXECUTION_FAILED;
 512         rr->errstring = "adm-reindex not implemented yet";
 513         break;
 514     case Z_ESAdminOriginPartToKeep_truncate:
 515         rr->errcode = YAZ_BIB1_ES_IMMEDIATE_EXECUTION_FAILED;
 516         rr->errstring = "adm-reindex not implemented yet";
 517         yaz_log(YLOG_LOG, "adm-truncate");
 518         break;
 519     case Z_ESAdminOriginPartToKeep_drop:
 520         yaz_log(YLOG_LOG, "adm-drop");
 521         res = zebra_drop_database(zh, r->toKeep->databaseName);
 522         break;
 523     case Z_ESAdminOriginPartToKeep_create:
 524         yaz_log(YLOG_LOG, "adm-create %s", r->toKeep->databaseName);
 525         res = zebra_create_database(zh, r->toKeep->databaseName);
 526         break;
 527     case Z_ESAdminOriginPartToKeep_import:
 528         yaz_log(YLOG_LOG, "adm-import");
 529         res = zebra_admin_import_begin(zh, r->toKeep->databaseName,
 530                                         r->toKeep->u.import->recordType);
 531         break;
 532     case Z_ESAdminOriginPartToKeep_refresh:
 533         yaz_log(YLOG_LOG, "adm-refresh");
 534         break;
 535     case Z_ESAdminOriginPartToKeep_commit:
 536         yaz_log(YLOG_LOG, "adm-commit");
 537         if (r->toKeep->databaseName)
 538         {
 539             if (zebra_select_database(zh, r->toKeep->databaseName) !=
 540                 ZEBRA_OK)
 541                 yaz_log(YLOG_WARN, "zebra_select_database failed in "
 542                         "adm-commit");
 543         }
 544         zebra_commit(zh);
 545         break;
 546     case Z_ESAdminOriginPartToKeep_shutdown:
 547         yaz_log(YLOG_LOG, "shutdown");
 548         res = zebra_admin_shutdown(zh);
 549         break;
 550     case Z_ESAdminOriginPartToKeep_start:
 551         yaz_log(YLOG_LOG, "start");
 552         zebra_admin_start(zh);
 553         break;
 554     default:
 555         yaz_log(YLOG_LOG, "unknown admin");
 556         rr->errcode = YAZ_BIB1_ES_IMMEDIATE_EXECUTION_FAILED;
 557         rr->errstring = "adm-reindex not implemented yet";
 558     }
 559     if (res != ZEBRA_OK)
 560         zebra_result(zh, &rr->errcode, &rr->errstring);
 561 }
 562
 563 static void es_admin(bend_esrequest_rr *rr, ZebraHandle zh, Z_Admin *r)
 564 {
 565     switch (r->which)
 566     {
 567     case Z_Admin_esRequest:
 568         es_admin_request(rr, zh, r->u.esRequest);
 569         return;
 570     default:
 571         break;
 572     }
 573         yaz_log(YLOG_WARN, "adm taskpackage (unhandled)");
 574     rr->errcode = YAZ_BIB1_ES_IMMEDIATE_EXECUTION_FAILED;
 575     rr->errstring = "adm-task package (unhandled)";
 576 }
 577
 578 int bend_segment(void *handle, bend_segment_rr *rr)
 579 {
 580     ZebraHandle zh = (ZebraHandle) handle;
 581     Z_Segment *segment = rr->segment;
 582
 583     if (segment->num_segmentRecords)
 584         zebra_admin_import_segment(zh, rr->segment);
 585     else
 586         zebra_admin_import_end(zh);
 587     return 0;
 588 }
 589
 590 int bend_esrequest(void *handle, bend_esrequest_rr *rr)
 591 {
 592     ZebraHandle zh = (ZebraHandle) handle;
 593
 594     yaz_log(YLOG_LOG, "function: " ODR_INT_PRINTF, *rr->esr->function);
 595     if (rr->esr->packageName)
 596         yaz_log(YLOG_LOG, "packagename: %s", rr->esr->packageName);
 597     yaz_log(YLOG_LOG, "Waitaction: " ODR_INT_PRINTF, *rr->esr->waitAction);
 598
 599     if (!rr->esr->taskSpecificParameters)
 600     {
 601         yaz_log(YLOG_WARN, "No task specific parameters");
 602     }
 603     else if (rr->esr->taskSpecificParameters->which == Z_External_ESAdmin)
 604     {
 605         es_admin(rr, zh, rr->esr->taskSpecificParameters->u.adminService);
 606     }
 607     else if (rr->esr->taskSpecificParameters->which == Z_External_update)
 608     {
 609         Z_IUUpdate *up = rr->esr->taskSpecificParameters->u.update;
 610         yaz_log(YLOG_LOG, "Received DB Update");
 611         if (up->which == Z_IUUpdate_esRequest)
 612         {
 613             Z_IUUpdateEsRequest *esRequest = up->u.esRequest;
 614             Z_IUOriginPartToKeep *toKeep = esRequest->toKeep;
 615             Z_IUSuppliedRecords *notToKeep = esRequest->notToKeep;
 616
 617             yaz_log(YLOG_LOG, "action");
 618             if (toKeep->action)
 619             {
 620                 switch (*toKeep->action)
 621                 {
 622                 case Z_IUOriginPartToKeep_recordInsert:
 623                     yaz_log(YLOG_LOG, "recordInsert");
 624                     break;
 625                 case Z_IUOriginPartToKeep_recordReplace:
 626                     yaz_log(YLOG_LOG, "recordUpdate");
 627                     break;
 628                 case Z_IUOriginPartToKeep_recordDelete:
 629                     yaz_log(YLOG_LOG, "recordDelete");
 630                     break;
 631                 case Z_IUOriginPartToKeep_elementUpdate:
 632                     yaz_log(YLOG_LOG, "elementUpdate");
 633                     break;
 634                 case Z_IUOriginPartToKeep_specialUpdate:
 635                     yaz_log(YLOG_LOG, "specialUpdate");
 636                     break;
 637                 case Z_ESAdminOriginPartToKeep_shutdown:
 638                     yaz_log(YLOG_LOG, "shutDown");
 639                     break;
 640                 case Z_ESAdminOriginPartToKeep_start:
 641                     yaz_log(YLOG_LOG, "start");
 642                     break;
 643                 default:
 644                     yaz_log(YLOG_LOG, " unknown (" ODR_INT_PRINTF ")",
 645                             *toKeep->action);
 646                 }
 647             }
 648             if (toKeep->databaseName)
 649             {
 650                 yaz_log(YLOG_LOG, "database: %s", toKeep->databaseName);
 651
 652                 if (zebra_select_database(zh, toKeep->databaseName))
 653                     return 0;
 654             }
 655             else
 656             {
 657                 yaz_log(YLOG_WARN, "no database supplied for ES Update");
 658                 rr->errcode =
 659                     YAZ_BIB1_ES_MISSING_MANDATORY_PARAMETER_FOR_SPECIFIED_FUNCTION_;
 660                 rr->errstring = "database";
 661                 return 0;
 662             }
 663             if (zebra_begin_trans(zh, 1) != ZEBRA_OK)
 664             {
 665                 zebra_result(zh, &rr->errcode, &rr->errstring);
 666             }
 667             else
 668             {
 669                 int i;
 670                 for (i = 0; notToKeep && i < notToKeep->num; i++)
 671                 {
 672                     Z_External *rec = notToKeep->elements[i]->record;
 673                     Odr_oct *opaque_recid = 0;
 674                     zint *sysno = 0;
 675                     zint sysno_tmp;
 676
 677                     if (notToKeep->elements[i]->u.opaque)
 678                     {
 679                         switch(notToKeep->elements[i]->which)
 680                         {
 681                         case Z_IUSuppliedRecords_elem_opaque:
 682                             opaque_recid = notToKeep->elements[i]->u.opaque;
 683                             break; /* OK, recid already set */
 684                         case Z_IUSuppliedRecords_elem_number:
 685                             sysno_tmp = *notToKeep->elements[i]->u.number;
 686                             sysno = &sysno_tmp;
 687                             break;
 688                         }
 689                     }
 690                     if (rec->direct_reference)
 691                     {
 692                         char oid_name_str[OID_STR_MAX];
 693                         const char *oid_name =
 694                             yaz_oid_to_string_buf(
 695                                 rec->direct_reference,
 696                                 0, oid_name_str);
 697                         if (oid_name)
 698                             yaz_log(YLOG_LOG, "record %d type %s", i,
 699                                      oid_name);
 700                     }
 701                     switch (rec->which)
 702                     {
 703                     case Z_External_sutrs:
 704                         if (rec->u.octet_aligned->len > 170)
 705                             yaz_log(YLOG_LOG, "%d bytes:\n%.168s ...",
 706                                      rec->u.sutrs->len,
 707                                      rec->u.sutrs->buf);
 708                         else
 709                             yaz_log(YLOG_LOG, "%d bytes:\n%s",
 710                                      rec->u.sutrs->len,
 711                                      rec->u.sutrs->buf);
 712                         break;
 713                     case Z_External_octet:
 714                         if (rec->u.octet_aligned->len > 170)
 715                             yaz_log(YLOG_LOG, "%d bytes:\n%.168s ...",
 716                                      rec->u.octet_aligned->len,
 717                                      rec->u.octet_aligned->buf);
 718                         else
 719                             yaz_log(YLOG_LOG, "%d bytes\n%s",
 720                                      rec->u.octet_aligned->len,
 721                                      rec->u.octet_aligned->buf);
 722                     }
 723                     if (rec->which == Z_External_octet)
 724                     {
 725                         enum zebra_recctrl_action_t action = action_update;
 726                         char recid_str[256];
 727                         const char *match_criteria = 0;
 728                         ZEBRA_RES res;
 729
 730                         if (*toKeep->action ==
 731                             Z_IUOriginPartToKeep_recordInsert)
 732                             action = action_insert;
 733                         else if (*toKeep->action ==
 734                             Z_IUOriginPartToKeep_recordReplace)
 735                             action = action_replace;
 736                         else if (*toKeep->action ==
 737                             Z_IUOriginPartToKeep_recordDelete)
 738                             action = action_delete;
 739                         else if (*toKeep->action ==
 740                             Z_IUOriginPartToKeep_specialUpdate)
 741                             action = action_update;
 742                         else
 743                         {
 744                             rr->errcode =
 745                                 YAZ_BIB1_ES_IMMEDIATE_EXECUTION_FAILED;
 746                             rr->errstring = "unsupported ES Update action";
 747                             break;
 748                         }
 749
 750                         if (opaque_recid)
 751                         {
 752                             size_t l = opaque_recid->len;
 753                             if (l >= sizeof(recid_str))
 754                             {
 755                                 rr->errcode = YAZ_BIB1_ES_IMMEDIATE_EXECUTION_FAILED;
 756                                 rr->errstring = "opaque record ID too large";
 757                                 break;
 758                             }
 759                             memcpy(recid_str, opaque_recid->buf, l);
 760                             recid_str[l] = '\0';
 761                             match_criteria = recid_str;
 762                         }
 763                         res = zebra_update_record(
 764                             zh, action,
 765                             0, /* recordType */
 766                             sysno, match_criteria, 0, /* fname */
 767                             (const char *) rec->u.octet_aligned->buf,
 768                             rec->u.octet_aligned->len);
 769                         if (res == ZEBRA_FAIL)
 770                         {
 771                             rr->errcode =
 772                                 YAZ_BIB1_ES_IMMEDIATE_EXECUTION_FAILED;
 773                             rr->errstring = "update_record failed";
 774                         }
 775                     }
 776                 }
 777                 if (zebra_end_trans(zh) != ZEBRA_OK)
 778                 {
 779                     yaz_log(YLOG_WARN, "zebra_end_trans failed for"
 780                             " extended service operation");
 781                 }
 782             }
 783         }
 784     }
 785     else
 786     {
 787         yaz_log(YLOG_WARN, "Unknown Extended Service(%d)",
 788                  rr->esr->taskSpecificParameters->which);
 789         rr->errcode = YAZ_BIB1_ES_EXTENDED_SERVICE_TYPE_UNSUPP;
 790
 791     }
 792     return 0;
 793 }
 794
 795 static void bend_start(struct statserv_options_block *sob)
 796 {
 797     Res default_res = res_open(0, 0);
 798
 799     if (sob->handle)
 800         zebra_stop((ZebraService) sob->handle);
 801     res_set(default_res, "profilePath", DEFAULT_PROFILE_PATH);
 802     res_set(default_res, "modulePath", DEFAULT_MODULE_PATH);
 803     sob->handle = zebra_start_res(sob->configname, default_res, 0);
 804     res_close(default_res);
 805     if (!sob->handle)
 806     {
 807         yaz_log(YLOG_FATAL, "Failed to read config `%s'", sob->configname);
 808         exit(1);
 809     }
 810 #ifdef WIN32
 811
 812 #else
 813     if (!sob->inetd && !sob->background)
 814     {
 815         char pidfname[4096];
 816         struct flock area;
 817         int fd;
 818
 819         zebra_pidfname(sob->handle, pidfname);
 820
 821         fd = open(pidfname, O_EXCL|O_WRONLY|O_CREAT, 0666);
 822         if (fd == -1)
 823         {
 824             if (errno != EEXIST)
 825             {
 826                 yaz_log(YLOG_FATAL|YLOG_ERRNO, "lock file %s", pidfname);
 827                 exit(1);
 828             }
 829             fd = open(pidfname, O_RDWR, 0666);
 830             if (fd == -1)
 831             {
 832                 yaz_log(YLOG_FATAL|YLOG_ERRNO, "lock file %s", pidfname);
 833                 exit(1);
 834             }
 835         }
 836         area.l_type = F_WRLCK;
 837         area.l_whence = SEEK_SET;
 838         area.l_len = area.l_start = 0L;
 839         if (fcntl(fd, F_SETLK, &area) == -1)
 840         {
 841             yaz_log(YLOG_ERRNO|YLOG_FATAL, "Zebra server already running");
 842             exit(1);
 843         }
 844         else
 845         {
 846             char pidstr[30];
 847
 848             sprintf(pidstr, "%ld", (long) getpid());
 849             if (write(fd, pidstr, strlen(pidstr)) != strlen(pidstr))
 850             {
 851                 yaz_log(YLOG_ERRNO|YLOG_FATAL, "write fail %s", pidfname);
 852                 exit(1);
 853             }
 854         }
 855     }
 856 #endif
 857 }
 858
 859 static void bend_stop(struct statserv_options_block *sob)
 860 {
 861 #ifdef WIN32
 862
 863 #else
 864     if (!sob->inetd && !sob->background && sob->handle)
 865     {
 866         char pidfname[4096];
 867         zebra_pidfname(sob->handle, pidfname);
 868         unlink(pidfname);
 869     }
 870 #endif
 871     if (sob->handle)
 872     {
 873         ZebraService service = sob->handle;
 874         zebra_stop(service);
 875     }
 876 }
 877
 878 int main(int argc, char **argv)
 879 {
 880     struct statserv_options_block *sob;
 881
 882     sob = statserv_getcontrol();
 883     strcpy(sob->configname, "zebra.cfg");
 884     sob->bend_start = bend_start;
 885     sob->bend_stop = bend_stop;
 886 #ifdef WIN32
 887     strcpy(sob->service_name, "zebrasrv");
 888     strcpy(sob->service_display_name, "Zebra Server");
 889 #endif
 890     statserv_setcontrol(sob);
 891
 892     return statserv_main(argc, argv, bend_init, bend_close);
 893 }
 894 /*
 895  * Local variables:
 896  * c-basic-offset: 4
 897  * c-file-style: "Stroustrup"
 898  * indent-tabs-mode: nil
 899  * End:
 900  * vim: shiftwidth=4 tabstop=8 expandtab
 901  */
 902