SimpleServer.xs

   1 /*
   2  * Copyright (c) 2000, Index Data.
   3  *
   4  * Permission to use, copy, modify, distribute, and sell this software and
   5  * its documentation, in whole or in part, for any purpose, is hereby granted,
   6  * provided that:
   7  *
   8  * 1. This copyright and permission notice appear in all copies of the
   9  * software and its documentation. Notices of copyright or attribution
  10  * which appear at the beginning of any file must remain unchanged.
  11  *
  12  * 2. The name of Index Data or the individual authors may not be used to
  13  * endorse or promote products derived from this software without specific
  14  * prior written permission.
  15  *
  16  * THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT WARRANTY OF ANY KIND,
  17  * EXPRESS, IMPLIED, OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
  18  * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
  19  * IN NO EVENT SHALL INDEX DATA BE LIABLE FOR ANY SPECIAL, INCIDENTAL,
  20  * INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, OR ANY DAMAGES
  21  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER OR
  22  * NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
  23  * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
  24  * OF THIS SOFTWARE.
  25  */
  26
  27 /*$Log: SimpleServer.xs,v $
  28 /*Revision 1.16  2002-11-26 17:09:18  mike
  29 /*basic support for idPass authentication
  30 /*
  31 /*Revision 1.15  2002/09/16 13:55:53  sondberg
  32 /*Added support for authentication into SimpleServer.
  33 /*
  34 /*Revision 1.14  2002/03/05 00:34:13  mike
  35 /*Support for implementation_id (commented out until it's
  36 /*in mainstream Yaz)
  37 /*
  38 /*Revision 1.13  2002/02/28 11:21:57  mike
  39 /*Add RPN structure to search-handler argument hash.
  40 /*
  41 /*Revision 1.12  2001/08/30 14:02:10  sondberg
  42 /*Small changes.
  43 /*
  44 /*Revision 1.11  2001/08/30 13:15:11  sondberg
  45 /*Corrected a memory leak, one more to go.
  46 /*
  47 /*Revision 1.10  2001/08/29 11:48:36  sondberg
  48 /*Added routines
  49 /*
  50 /*      Net::Z3950::SimpleServer::ScanSuccess
  51 /*      Net::Z3950::SimpleServer::ScanPartial
  52 /*
  53 /*and a bit of documentation.
  54 /*
  55 /*Revision 1.9  2001/08/24 14:00:20  sondberg
  56 /*Added support for scan.
  57 /*
  58 /*Revision 1.8  2001/05/21 11:07:02  sondberg
  59 /*Extended maximum numbers of GRS-1 elements. Should be done dynamically.
  60 /*
  61 /*Revision 1.7  2001/03/13 14:17:15  sondberg
  62 /*Added support for GRS-1.
  63 /**/
  64
  65
  66 #include "EXTERN.h"
  67 #include "perl.h"
  68 #include "XSUB.h"
  69 #include <yaz/backend.h>
  70 #include <yaz/log.h>
  71 #include <yaz/wrbuf.h>
  72 #include <stdio.h>
  73 #include <unistd.h>
  74 #include <stdlib.h>
  75 #include <ctype.h>
  76 #define GRS_MAX_FIELDS 500
  77 #ifdef ASN_COMPILED
  78 #include <yaz/ill.h>
  79 #endif
  80 #ifndef sv_undef                /* To fix the problem with Perl 5.6.0 */
  81 #define sv_undef PL_sv_undef
  82 #endif
  83
  84 typedef struct {
  85         SV *handle;
  86
  87         SV *init_ref;
  88         SV *close_ref;
  89         SV *sort_ref;
  90         SV *search_ref;
  91         SV *fetch_ref;
  92         SV *present_ref;
  93         SV *esrequest_ref;
  94         SV *delete_ref;
  95         SV *scan_ref;
  96 } Zfront_handle;
  97
  98 SV *init_ref = NULL;
  99 SV *close_ref = NULL;
 100 SV *sort_ref = NULL;
 101 SV *search_ref = NULL;
 102 SV *fetch_ref = NULL;
 103 SV *present_ref = NULL;
 104 SV *esrequest_ref = NULL;
 105 SV *delete_ref = NULL;
 106 SV *scan_ref = NULL;
 107 int MAX_OID = 15;
 108
 109
 110 Z_GenericRecord *read_grs1(char *str, ODR o)
 111 {
 112         int type, ivalue;
 113         char line[512], *buf, *ptr, *original;
 114         char value[512];
 115         Z_GenericRecord *r = 0;
 116
 117         original = str;
 118         for (;;)
 119         {
 120                 Z_TaggedElement *t;
 121                 Z_ElementData *c;
 122
 123                 ptr = strchr(str, '\n');
 124                 if (!ptr) {
 125                         return r;
 126                 }
 127                 strncpy(line, str, ptr - str);
 128                 line[ptr - str] = 0;
 129                 buf = line;
 130                 str = ptr + 1;
 131                 while (*buf && isspace(*buf))
 132                         buf++;
 133                 if (*buf == '}') {
 134                         memmove(original, str, strlen(str));
 135                         return r;
 136                 }
 137                 if (sscanf(buf, "(%d,%[^)])", &type, value) != 2)
 138                 {
 139                         yaz_log(LOG_WARN, "Bad data in '%s'", buf);
 140                         return 0;
 141                 }
 142                 if (!type && *value == '0')
 143                         return r;
 144                 if (!(buf = strchr(buf, ')')))
 145                         return 0;
 146                 buf++;
 147                 while (*buf && isspace(*buf))
 148                         buf++;
 149                 if (!*buf)
 150                         return 0;
 151                 if (!r)
 152                 {
 153                         r = (Z_GenericRecord *)odr_malloc(o, sizeof(*r));
 154                         r->elements = (Z_TaggedElement **)
 155                         odr_malloc(o, sizeof(Z_TaggedElement*) * GRS_MAX_FIELDS);
 156                         r->num_elements = 0;
 157                 }
 158                 if (r->num_elements > GRS_MAX_FIELDS)
 159                 {
 160                         yaz_log(LOG_WARN, "Max number of GRS-1 elements exceeded [GRS_MAX_FIELDS=%d]", GRS_MAX_FIELDS);
 161                         exit(0);
 162                 }
 163                 r->elements[r->num_elements] = t = (Z_TaggedElement *) odr_malloc(o, sizeof(Z_TaggedElement));
 164                 t->tagType = (int *)odr_malloc(o, sizeof(int));
 165                 *t->tagType = type;
 166                 t->tagValue = (Z_StringOrNumeric *)
 167                         odr_malloc(o, sizeof(Z_StringOrNumeric));
 168                 if ((ivalue = atoi(value)))
 169                 {
 170                         t->tagValue->which = Z_StringOrNumeric_numeric;
 171                         t->tagValue->u.numeric = (int *)odr_malloc(o, sizeof(int));
 172                         *t->tagValue->u.numeric = ivalue;
 173                 }
 174                 else
 175                 {
 176                         t->tagValue->which = Z_StringOrNumeric_string;
 177                         t->tagValue->u.string = (char *)odr_malloc(o, strlen(value)+1);
 178                         strcpy(t->tagValue->u.string, value);
 179                 }
 180                 t->tagOccurrence = 0;
 181                 t->metaData = 0;
 182                 t->appliedVariant = 0;
 183                 t->content = c = (Z_ElementData *)odr_malloc(o, sizeof(Z_ElementData));
 184                 if (*buf == '{')
 185                 {
 186                         c->which = Z_ElementData_subtree;
 187                         c->u.subtree = read_grs1(str, o);
 188                 }
 189                 else
 190                 {
 191                         c->which = Z_ElementData_string;
 192 /*                      buf[strlen(buf)-1] = '\0';*/
 193                         buf[strlen(buf)] = '\0';
 194                         c->u.string = odr_strdup(o, buf);
 195                 }
 196                 r->num_elements++;
 197         }
 198 }
 199
 200
 201
 202
 203 static void oid2str(Odr_oid *o, WRBUF buf)
 204 {
 205     for (; *o >= 0; o++) {
 206         char ibuf[16];
 207         sprintf(ibuf, "%d", *o);
 208         wrbuf_puts(buf, ibuf);
 209         if (o[1] > 0)
 210             wrbuf_putc(buf, '.');
 211     }
 212 }
 213
 214
 215 static int rpn2pquery(Z_RPNStructure *s, WRBUF buf)
 216 {
 217     switch (s->which) {
 218         case Z_RPNStructure_simple: {
 219             Z_Operand *o = s->u.simple;
 220
 221             switch (o->which) {
 222                 case Z_Operand_APT: {
 223                     Z_AttributesPlusTerm *at = o->u.attributesPlusTerm;
 224
 225                     if (at->attributes) {
 226                         int i;
 227                         char ibuf[16];
 228
 229                         for (i = 0; i < at->attributes->num_attributes; i++) {
 230                             wrbuf_puts(buf, "@attr ");
 231                             if (at->attributes->attributes[i]->attributeSet) {
 232                                 oid2str(at->attributes->attributes[i]->attributeSet, buf);
 233                                 wrbuf_putc(buf, ' ');
 234                             }
 235                             sprintf(ibuf, "%d=", *at->attributes->attributes[i]->attributeType);
 236                             assert(at->attributes->attributes[i]->which == Z_AttributeValue_numeric);
 237                             wrbuf_puts(buf, ibuf);
 238                             sprintf(ibuf, "%d ", *at->attributes->attributes[i]->value.numeric);
 239                             wrbuf_puts(buf, ibuf);
 240                         }
 241                     }
 242                     switch (at->term->which) {
 243                         case Z_Term_general: {
 244                             wrbuf_putc(buf, '"');
 245                             wrbuf_write(buf, (char*) at->term->u.general->buf, at->term->u.general->len);
 246                             wrbuf_puts(buf, "\" ");
 247                             break;
 248                         }
 249                         default: abort();
 250                     }
 251                     break;
 252                 }
 253                 default: abort();
 254             }
 255             break;
 256         }
 257         case Z_RPNStructure_complex: {
 258             Z_Complex *c = s->u.complex;
 259
 260             switch (c->roperator->which) {
 261                 case Z_Operator_and: wrbuf_puts(buf, "@and "); break;
 262                 case Z_Operator_or: wrbuf_puts(buf, "@or "); break;
 263                 case Z_Operator_and_not: wrbuf_puts(buf, "@not "); break;
 264                 case Z_Operator_prox: abort();
 265                 default: abort();
 266             }
 267             if (!rpn2pquery(c->s1, buf))
 268                 return 0;
 269             if (!rpn2pquery(c->s2, buf))
 270                 return 0;
 271             break;
 272         }
 273         default: abort();
 274     }
 275     return 1;
 276 }
 277
 278
 279 WRBUF zquery2pquery(Z_Query *q)
 280 {
 281     WRBUF buf = wrbuf_alloc();
 282
 283     if (q->which != Z_Query_type_1 && q->which != Z_Query_type_101)
 284         return 0;
 285     if (q->u.type_1->attributeSetId) {
 286         /* Output attribute set ID */
 287         wrbuf_puts(buf, "@attrset ");
 288         oid2str(q->u.type_1->attributeSetId, buf);
 289         wrbuf_putc(buf, ' ');
 290     }
 291     return rpn2pquery(q->u.type_1->RPNStructure, buf) ? buf : 0;
 292 }
 293
 294
 295 /* Lifted verbatim from Net::Z3950 yazwrap/util.c */
 296 #include <stdarg.h>
 297 void fatal(char *fmt, ...)
 298 {
 299     va_list ap;
 300
 301     fprintf(stderr, "FATAL (yazwrap): ");
 302     va_start(ap, fmt);
 303     vfprintf(stderr, fmt, ap);
 304     va_end(ap);
 305     fprintf(stderr, "\n");
 306     abort();
 307 }
 308
 309
 310 /* Lifted verbatim from Net::Z3950 yazwrap/receive.c */
 311 /*
 312  * Creates a new Perl object of type `class'; the newly-created scalar
 313  * that is a reference to the blessed thingy `referent' is returned.
 314  */
 315 static SV *newObject(char *class, SV *referent)
 316 {
 317     HV *stash;
 318     SV *sv;
 319
 320     sv = newRV_noinc((SV*) referent);
 321     stash = gv_stashpv(class, 0);
 322     if (stash == 0)
 323         fatal("attempt to create object of undefined class '%s'", class);
 324     /*assert(stash != 0);*/
 325     sv_bless(sv, stash);
 326     return sv;
 327 }
 328
 329
 330 /* Lifted verbatim from Net::Z3950 yazwrap/receive.c */
 331 static void setMember(HV *hv, char *name, SV *val)
 332 {
 333     /* We don't increment `val's reference count -- I think this is
 334      * right because it's created with a refcount of 1, and in fact
 335      * the reference via this hash is the only reference to it in
 336      * general.
 337      */
 338     if (!hv_store(hv, name, (U32) strlen(name), val, (U32) 0))
 339         fatal("couldn't store member in hash");
 340 }
 341
 342
 343 /* Lifted verbatim from Net::Z3950 yazwrap/receive.c */
 344 static SV *translateOID(Odr_oid *x)
 345 {
 346     /* Yaz represents an OID by an int array terminated by a negative
 347      * value, typically -1; we represent it as a reference to a
 348      * blessed scalar string of "."-separated elements.
 349      */
 350     char buf[1000];
 351     int i;
 352
 353     *buf = '\0';
 354     for (i = 0; x[i] >= 0; i++) {
 355         sprintf(buf + strlen(buf), "%d", (int) x[i]);
 356         if (x[i+1] >- 0)
 357             strcat(buf, ".");
 358     }
 359
 360     /*
 361      * ### We'd like to return a blessed scalar (string) here, but of
 362      *  course you can't do that in Perl: only references can be
 363      *  blessed, so we'd have to return a _reference_ to a string, and
 364      *  bless _that_.  Better to do without the blessing, I think.
 365      */
 366     if (1) {
 367         return newSVpv(buf, 0);
 368     } else {
 369         return newObject("Net::Z3950::APDU::OID", newSVpv(buf, 0));
 370     }
 371 }
 372
 373
 374 static SV *rpn2perl(Z_RPNStructure *s)
 375 {
 376     SV *sv;
 377     HV *hv;
 378     AV *av;
 379
 380     switch (s->which) {
 381     case Z_RPNStructure_simple: {
 382         Z_Operand *o = s->u.simple;
 383         Z_AttributesPlusTerm *at;
 384         if (o->which != Z_Operand_APT)
 385             fatal("can't handle RPN simples other than APT");
 386         at = o->u.attributesPlusTerm;
 387         if (at->term->which != Z_Term_general)
 388             fatal("can't handle RPN terms other than general");
 389
 390         sv = newObject("Net::Z3950::RPN::Term", (SV*) (hv = newHV()));
 391         if (at->attributes) {
 392             int i;
 393             SV *attrs = newObject("Net::Z3950::RPN::Attributes",
 394                                   (SV*) (av = newAV()));
 395             for (i = 0; i < at->attributes->num_attributes; i++) {
 396                 Z_AttributeElement *elem = at->attributes->attributes[i];
 397                 HV *hv2;
 398                 SV *tmp = newObject("Net::Z3950::RPN::Attribute",
 399                                     (SV*) (hv2 = newHV()));
 400                 if (elem->attributeSet)
 401                     setMember(hv2, "attributeSet",
 402                               translateOID(elem->attributeSet));
 403                 setMember(hv2, "attributeType",
 404                           newSViv(*elem->attributeType));
 405                 assert(elem->which == Z_AttributeValue_numeric);
 406                 setMember(hv2, "attributeValue",
 407                           newSViv(*elem->value.numeric));
 408                 av_push(av, tmp);
 409             }
 410             setMember(hv, "attributes", attrs);
 411         }
 412         setMember(hv, "term", newSVpv((char*) at->term->u.general->buf,
 413                                       at->term->u.general->len));
 414         return sv;
 415     }
 416     case Z_RPNStructure_complex: {
 417         SV *tmp;
 418         Z_Complex *c = s->u.complex;
 419         char *type = 0;         /* vacuous assignment satisfies gcc -Wall */
 420         switch (c->roperator->which) {
 421         case Z_Operator_and:     type = "Net::Z3950::RPN::And"; break;
 422         case Z_Operator_or:      type = "Net::Z3950::RPN::Or"; break;
 423         case Z_Operator_and_not: type = "Net::Z3950::RPN::AndNot"; break;
 424         case Z_Operator_prox:    fatal("proximity not yet supported");
 425         default: fatal("unknown RPN operator %d", (int) c->roperator->which);
 426         }
 427         sv = newObject(type, (SV*) (av = newAV()));
 428         if ((tmp = rpn2perl(c->s1)) == 0)
 429             return 0;
 430         av_push(av, tmp);
 431         if ((tmp = rpn2perl(c->s2)) == 0)
 432             return 0;
 433         av_push(av, tmp);
 434         return sv;
 435     }
 436     default: fatal("unknown RPN node type %d", (int) s->which);
 437     }
 438
 439     return 0;
 440 }
 441
 442
 443 static SV *zquery2perl(Z_Query *q)
 444 {
 445     SV *sv;
 446     HV *hv;
 447
 448     if (q->which != Z_Query_type_1 && q->which != Z_Query_type_101)
 449         return 0;
 450     sv = newObject("Net::Z3950::APDU::Query", (SV*) (hv = newHV()));
 451     if (q->u.type_1->attributeSetId)
 452         setMember(hv, "attributeSet",
 453                   translateOID(q->u.type_1->attributeSetId));
 454     setMember(hv, "query", rpn2perl(q->u.type_1->RPNStructure));
 455     return sv;
 456 }
 457
 458
 459 int bend_sort(void *handle, bend_sort_rr *rr)
 460 {
 461         HV *href;
 462         AV *aref;
 463         SV **temp;
 464         SV *err_code;
 465         SV *err_str;
 466         SV *status;
 467         STRLEN len;
 468         char *ptr;
 469         char *ODR_err_str;
 470         char **input_setnames;
 471         Zfront_handle *zhandle = (Zfront_handle *)handle;
 472         int i;
 473
 474         dSP;
 475         ENTER;
 476         SAVETMPS;
 477
 478         aref = newAV();
 479         input_setnames = rr->input_setnames;
 480         for (i = 0; i < rr->num_input_setnames; i++)
 481         {
 482                 av_push(aref, newSVpv(*input_setnames++, 0));
 483         }
 484         href = newHV();
 485         hv_store(href, "INPUT", 5, newRV( (SV*) aref), 0);
 486         hv_store(href, "OUTPUT", 6, newSVpv(rr->output_setname, 0), 0);
 487         hv_store(href, "HANDLE", 6, zhandle->handle, 0);
 488         hv_store(href, "STATUS", 6, newSViv(0), 0);
 489
 490         PUSHMARK(sp);
 491
 492         XPUSHs(sv_2mortal(newRV( (SV*) href)));
 493
 494         PUTBACK;
 495
 496         perl_call_sv(sort_ref, G_SCALAR | G_DISCARD);
 497
 498         SPAGAIN;
 499
 500         temp = hv_fetch(href, "ERR_CODE", 8, 1);
 501         err_code = newSVsv(*temp);
 502
 503         temp = hv_fetch(href, "ERR_STR", 7, 1);
 504         err_str = newSVsv(*temp);
 505
 506         temp = hv_fetch(href, "STATUS", 6, 1);
 507         status = newSVsv(*temp);
 508
 509
 510
 511
 512         PUTBACK;
 513         FREETMPS;
 514         LEAVE;
 515
 516         hv_undef(href),
 517         av_undef(aref);
 518         rr->errcode = SvIV(err_code);
 519         rr->sort_status = SvIV(status);
 520         ptr = SvPV(err_str, len);
 521         ODR_err_str = (char *)odr_malloc(rr->stream, len + 1);
 522         strcpy(ODR_err_str, ptr);
 523         rr->errstring = ODR_err_str;
 524
 525         sv_free(err_code);
 526         sv_free(err_str);
 527         sv_free(status);
 528
 529         return 0;
 530 }
 531
 532
 533 int bend_search(void *handle, bend_search_rr *rr)
 534 {
 535         HV *href;
 536         AV *aref;
 537         SV **temp;
 538         SV *hits;
 539         SV *err_code;
 540         SV *err_str;
 541         char *ODR_errstr;
 542         STRLEN len;
 543         int i;
 544         char **basenames;
 545         int n;
 546         WRBUF query;
 547         char *ptr;
 548         SV *point;
 549         SV *ODR_point;
 550         Zfront_handle *zhandle = (Zfront_handle *)handle;
 551
 552         dSP;
 553         ENTER;
 554         SAVETMPS;
 555
 556         aref = newAV();
 557         basenames = rr->basenames;
 558         for (i = 0; i < rr->num_bases; i++)
 559         {
 560                 av_push(aref, newSVpv(*basenames++, 0));
 561         }
 562         href = newHV();
 563         hv_store(href, "SETNAME", 7, newSVpv(rr->setname, 0), 0);
 564         hv_store(href, "REPL_SET", 8, newSViv(rr->replace_set), 0);
 565         hv_store(href, "ERR_CODE", 8, newSViv(0), 0);
 566         hv_store(href, "ERR_STR", 7, newSVpv("", 0), 0);
 567         hv_store(href, "HITS", 4, newSViv(0), 0);
 568         hv_store(href, "DATABASES", 9, newRV( (SV*) aref), 0);
 569         hv_store(href, "HANDLE", 6, zhandle->handle, 0);
 570         hv_store(href, "PID", 3, newSViv(getpid()), 0);
 571         hv_store(href, "RPN", 3, zquery2perl(rr->query), 0);
 572         query = zquery2pquery(rr->query);
 573         if (query)
 574         {
 575                 hv_store(href, "QUERY", 5, newSVpv((char *)query->buf, query->pos), 0);
 576         }
 577         else
 578         {
 579                 rr->errcode = 108;
 580         }
 581         PUSHMARK(sp);
 582
 583         XPUSHs(sv_2mortal(newRV( (SV*) href)));
 584
 585         PUTBACK;
 586
 587         n = perl_call_sv(search_ref, G_SCALAR | G_DISCARD);
 588
 589         SPAGAIN;
 590
 591         temp = hv_fetch(href, "HITS", 4, 1);
 592         hits = newSVsv(*temp);
 593
 594         temp = hv_fetch(href, "ERR_CODE", 8, 1);
 595         err_code = newSVsv(*temp);
 596
 597         temp = hv_fetch(href, "ERR_STR", 7, 1);
 598         err_str = newSVsv(*temp);
 599
 600         temp = hv_fetch(href, "HANDLE", 6, 1);
 601         point = newSVsv(*temp);
 602
 603         PUTBACK;
 604         FREETMPS;
 605         LEAVE;
 606
 607         hv_undef(href);
 608         av_undef(aref);
 609         rr->hits = SvIV(hits);
 610         rr->errcode = SvIV(err_code);
 611         ptr = SvPV(err_str, len);
 612         ODR_errstr = (char *)odr_malloc(rr->stream, len + 1);
 613         strcpy(ODR_errstr, ptr);
 614         rr->errstring = ODR_errstr;
 615 /*      ODR_point = (SV *)odr_malloc(rr->stream, sizeof(*point));
 616         memcpy(ODR_point, point, sizeof(*point));
 617         zhandle->handle = ODR_point;*/
 618         zhandle->handle = point;
 619         handle = zhandle;
 620         sv_free(hits);
 621         sv_free(err_code);
 622         sv_free(err_str);
 623         sv_free( (SV*) aref);
 624         sv_free( (SV*) href);
 625         /*sv_free(point);*/
 626         wrbuf_free(query, 1);
 627         return 0;
 628 }
 629
 630
 631 /* ### this is worryingly similar to oid2str() */
 632 WRBUF oid2dotted(int *oid)
 633 {
 634
 635         WRBUF buf = wrbuf_alloc();
 636         int dot = 0;
 637
 638         for (; *oid != -1 ; oid++)
 639         {
 640                 char ibuf[16];
 641                 if (dot)
 642                 {
 643                         wrbuf_putc(buf, '.');
 644                 }
 645                 else
 646                 {
 647                         dot = 1;
 648                 }
 649                 sprintf(ibuf, "%d", *oid);
 650                 wrbuf_puts(buf, ibuf);
 651         }
 652         return buf;
 653 }
 654
 655
 656 int dotted2oid(char *dotted, int *buffer)
 657 {
 658         int *oid;
 659         char ibuf[16];
 660         char *ptr;
 661         int n = 0;
 662
 663         ptr = ibuf;
 664         oid = buffer;
 665         while (*dotted)
 666         {
 667                 if (*dotted == '.')
 668                 {
 669                         n++;
 670                         if (n == MAX_OID)  /* Terminate if more than MAX_OID entries */
 671                         {
 672                                 *oid = -1;
 673                                 return -1;
 674                         }
 675                         *ptr = 0;
 676                         sscanf(ibuf, "%d", oid++);
 677                         ptr = ibuf;
 678                         dotted++;
 679
 680                 }
 681                 else
 682                 {
 683                         *ptr++ = *dotted++;
 684                 }
 685         }
 686         if (n < MAX_OID)
 687         {
 688                 *ptr = 0;
 689                 sscanf(ibuf, "%d", oid++);
 690         }
 691         *oid = -1;
 692         return 0;
 693 }
 694
 695
 696 int bend_fetch(void *handle, bend_fetch_rr *rr)
 697 {
 698         HV *href;
 699         SV **temp;
 700         SV *basename;
 701         SV *record;
 702         SV *last;
 703         SV *err_code;
 704         SV *err_string;
 705         SV *sur_flag;
 706         SV *point;
 707         SV *rep_form;
 708         char *ptr;
 709         char *ODR_record;
 710         char *ODR_basename;
 711         char *ODR_errstr;
 712         int *ODR_oid_buf;
 713         oident *oid;
 714         WRBUF oid_dotted;
 715         Zfront_handle *zhandle = (Zfront_handle *)handle;
 716
 717         Z_RecordComposition *composition;
 718         Z_ElementSetNames *simple;
 719         STRLEN length;
 720
 721         dSP;
 722         ENTER;
 723         SAVETMPS;
 724
 725         rr->errcode = 0;
 726         href = newHV();
 727         hv_store(href, "SETNAME", 7, newSVpv(rr->setname, 0), 0);
 728         temp = hv_store(href, "OFFSET", 6, newSViv(rr->number), 0);
 729         oid_dotted = oid2dotted(rr->request_format_raw);
 730         hv_store(href, "REQ_FORM", 8, newSVpv((char *)oid_dotted->buf, oid_dotted->pos), 0);
 731         hv_store(href, "REP_FORM", 8, newSVpv((char *)oid_dotted->buf, oid_dotted->pos), 0);
 732         hv_store(href, "BASENAME", 8, newSVpv("", 0), 0);
 733         hv_store(href, "RECORD", 6, newSVpv("", 0), 0);
 734         hv_store(href, "LAST", 4, newSViv(0), 0);
 735         hv_store(href, "ERR_CODE", 8, newSViv(0), 0);
 736         hv_store(href, "ERR_STR", 7, newSVpv("", 0), 0);
 737         hv_store(href, "SUR_FLAG", 8, newSViv(0), 0);
 738         hv_store(href, "HANDLE", 6, zhandle->handle, 0);
 739         hv_store(href, "PID", 3, newSViv(getpid()), 0);
 740         if (rr->comp)
 741         {
 742                 composition = rr->comp;
 743                 if (composition->which == Z_RecordComp_simple)
 744                 {
 745                         simple = composition->u.simple;
 746                         if (simple->which == Z_ElementSetNames_generic)
 747                         {
 748                                 hv_store(href, "COMP", 4, newSVpv(simple->u.generic, 0), 0);
 749                         }
 750                         else
 751                         {
 752                                 rr->errcode = 26;
 753                         }
 754                 }
 755                 else
 756                 {
 757                         rr->errcode = 26;
 758                 }
 759         }
 760
 761         PUSHMARK(sp);
 762
 763         XPUSHs(sv_2mortal(newRV( (SV*) href)));
 764
 765         PUTBACK;
 766
 767         perl_call_sv(fetch_ref, G_SCALAR | G_DISCARD);
 768
 769         SPAGAIN;
 770
 771         temp = hv_fetch(href, "BASENAME", 8, 1);
 772         basename = newSVsv(*temp);
 773
 774         temp = hv_fetch(href, "RECORD", 6, 1);
 775         record = newSVsv(*temp);
 776
 777         temp = hv_fetch(href, "LAST", 4, 1);
 778         last = newSVsv(*temp);
 779
 780         temp = hv_fetch(href, "ERR_CODE", 8, 1);
 781         err_code = newSVsv(*temp);
 782
 783         temp = hv_fetch(href, "ERR_STR", 7, 1),
 784         err_string = newSVsv(*temp);
 785
 786         temp = hv_fetch(href, "SUR_FLAG", 8, 1);
 787         sur_flag = newSVsv(*temp);
 788
 789         temp = hv_fetch(href, "REP_FORM", 8, 1);
 790         rep_form = newSVsv(*temp);
 791
 792         temp = hv_fetch(href, "HANDLE", 6, 1);
 793         point = newSVsv(*temp);
 794
 795         PUTBACK;
 796         FREETMPS;
 797         LEAVE;
 798
 799         hv_undef(href);
 800
 801         ptr = SvPV(basename, length);
 802         ODR_basename = (char *)odr_malloc(rr->stream, length + 1);
 803         strcpy(ODR_basename, ptr);
 804         rr->basename = ODR_basename;
 805
 806         ptr = SvPV(rep_form, length);
 807         ODR_oid_buf = (int *)odr_malloc(rr->stream, (MAX_OID + 1) * sizeof(int));
 808         if (dotted2oid(ptr, ODR_oid_buf) == -1)         /* Maximum number of OID elements exceeded */
 809         {
 810                 printf("Net::Z3950::SimpleServer: WARNING: OID structure too long, max length is %d\n", MAX_OID);
 811         }
 812         rr->output_format_raw = ODR_oid_buf;
 813
 814         ptr = SvPV(record, length);
 815         oid = oid_getentbyoid(ODR_oid_buf);
 816         if (oid->value == VAL_GRS1)             /* Treat GRS-1 records separately */
 817         {
 818                 rr->record = (char *) read_grs1(ptr, rr->stream);
 819                 rr->len = -1;
 820         }
 821         else
 822         {
 823                 ODR_record = (char *)odr_malloc(rr->stream, length + 1);
 824                 strcpy(ODR_record, ptr);
 825                 rr->record = ODR_record;
 826                 rr->len = length;
 827         }
 828         zhandle->handle = point;
 829         handle = zhandle;
 830         rr->last_in_set = SvIV(last);
 831
 832         if (!(rr->errcode))
 833         {
 834                 rr->errcode = SvIV(err_code);
 835                 ptr = SvPV(err_string, length);
 836                 ODR_errstr = (char *)odr_malloc(rr->stream, length + 1);
 837                 strcpy(ODR_errstr, ptr);
 838                 rr->errstring = ODR_errstr;
 839         }
 840         rr->surrogate_flag = SvIV(sur_flag);
 841
 842         wrbuf_free(oid_dotted, 1);
 843         sv_free((SV*) href);
 844         sv_free(basename);
 845         sv_free(record);
 846         sv_free(last);
 847         sv_free(err_string);
 848         sv_free(err_code),
 849         sv_free(sur_flag);
 850         sv_free(rep_form);
 851
 852         return 0;
 853 }
 854
 855
 856 int bend_present(void *handle, bend_present_rr *rr)
 857 {
 858
 859         HV *href;
 860         SV **temp;
 861         SV *err_code;
 862         SV *err_string;
 863         SV *hits;
 864         SV *point;
 865         STRLEN len;
 866         Z_RecordComposition *composition;
 867         Z_ElementSetNames *simple;
 868         char *ODR_errstr;
 869         char *ptr;
 870         Zfront_handle *zhandle = (Zfront_handle *)handle;
 871
 872 /*      WRBUF oid_dotted; */
 873
 874         dSP;
 875         ENTER;
 876         SAVETMPS;
 877
 878         href = newHV();
 879         hv_store(href, "HANDLE", 6, zhandle->handle, 0);
 880         hv_store(href, "ERR_CODE", 8, newSViv(0), 0);
 881         hv_store(href, "ERR_STR", 7, newSVpv("", 0), 0);
 882         hv_store(href, "START", 5, newSViv(rr->start), 0);
 883         hv_store(href, "SETNAME", 7, newSVpv(rr->setname, 0), 0);
 884         hv_store(href, "NUMBER", 6, newSViv(rr->number), 0);
 885         /*oid_dotted = oid2dotted(rr->request_format_raw);
 886         hv_store(href, "REQ_FORM", 8, newSVpv((char *)oid_dotted->buf, oid_dotted->pos), 0);*/
 887         hv_store(href, "HITS", 4, newSViv(0), 0);
 888         hv_store(href, "PID", 3, newSViv(getpid()), 0);
 889         if (rr->comp)
 890         {
 891                 composition = rr->comp;
 892                 if (composition->which == Z_RecordComp_simple)
 893                 {
 894                         simple = composition->u.simple;
 895                         if (simple->which == Z_ElementSetNames_generic)
 896                         {
 897                                 hv_store(href, "COMP", 4, newSVpv(simple->u.generic, 0), 0);
 898                         }
 899                         else
 900                         {
 901                                 rr->errcode = 26;
 902                                 return 0;
 903                         }
 904                 }
 905                 else
 906                 {
 907                         rr->errcode = 26;
 908                         return 0;
 909                 }
 910         }
 911
 912         PUSHMARK(sp);
 913
 914         XPUSHs(sv_2mortal(newRV( (SV*) href)));
 915
 916         PUTBACK;
 917
 918         perl_call_sv(present_ref, G_SCALAR | G_DISCARD);
 919
 920         SPAGAIN;
 921
 922         temp = hv_fetch(href, "ERR_CODE", 8, 1);
 923         err_code = newSVsv(*temp);
 924
 925         temp = hv_fetch(href, "ERR_STR", 7, 1);
 926         err_string = newSVsv(*temp);
 927
 928         temp = hv_fetch(href, "HITS", 4, 1);
 929         hits = newSVsv(*temp);
 930
 931         temp = hv_fetch(href, "HANDLE", 6, 1);
 932         point = newSVsv(*temp);
 933
 934         PUTBACK;
 935         FREETMPS;
 936         LEAVE;
 937
 938         hv_undef(href);
 939         rr->errcode = SvIV(err_code);
 940         rr->hits = SvIV(hits);
 941
 942         ptr = SvPV(err_string, len);
 943         ODR_errstr = (char *)odr_malloc(rr->stream, len + 1);
 944         strcpy(ODR_errstr, ptr);
 945         rr->errstring = ODR_errstr;
 946 /*      wrbuf_free(oid_dotted, 1);*/
 947         zhandle->handle = point;
 948         handle = zhandle;
 949         sv_free(err_code);
 950         sv_free(err_string);
 951         sv_free(hits);
 952         sv_free( (SV*) href);
 953
 954         return 0;
 955 }
 956
 957
 958 int bend_esrequest(void *handle, bend_esrequest_rr *rr)
 959 {
 960         perl_call_sv(esrequest_ref, G_VOID | G_DISCARD | G_NOARGS);
 961         return 0;
 962 }
 963
 964
 965 int bend_delete(void *handle, bend_delete_rr *rr)
 966 {
 967         perl_call_sv(delete_ref, G_VOID | G_DISCARD | G_NOARGS);
 968         return 0;
 969 }
 970
 971
 972 int bend_scan(void *handle, bend_scan_rr *rr)
 973 {
 974         HV *href;
 975         AV *aref;
 976         AV *list;
 977         AV *entries;
 978         HV *scan_item;
 979         struct scan_entry *scan_list;
 980         struct scan_entry *buffer;
 981         int *step_size = rr->step_size;
 982         int i;
 983         char **basenames;
 984         SV **temp;
 985         SV *err_code = sv_newmortal();
 986         SV *err_str = sv_newmortal();
 987         SV *point = sv_newmortal();
 988         SV *status = sv_newmortal();
 989         SV *number = sv_newmortal();
 990         char *ptr;
 991         char *ODR_errstr;
 992         STRLEN len;
 993         int term_len;
 994         SV *term_tmp;
 995         SV *entries_ref;
 996
 997         Zfront_handle *zhandle = (Zfront_handle *)handle;
 998
 999         dSP;
1000         ENTER;
1001         SAVETMPS;
1002         href = newHV();
1003         list = newAV();
1004         if (rr->term->term->which == Z_Term_general)
1005         {
1006                 term_len = rr->term->term->u.general->len;
1007                 hv_store(href, "TERM", 4, newSVpv(rr->term->term->u.general->buf, term_len), 0);
1008         } else {
1009                 rr->errcode = 229;      /* Unsupported term type */
1010                 return 0;
1011         }
1012         hv_store(href, "STEP", 4, newSViv(*step_size), 0);
1013         hv_store(href, "NUMBER", 6, newSViv(rr->num_entries), 0);
1014         hv_store(href, "POS", 3, newSViv(rr->term_position), 0);
1015         hv_store(href, "ERR_CODE", 8, newSViv(0), 0);
1016         hv_store(href, "ERR_STR", 7, newSVpv("", 0), 0);
1017         hv_store(href, "HANDLE", 6, zhandle->handle, 0);
1018         hv_store(href, "STATUS", 6, newSViv(BEND_SCAN_SUCCESS), 0);
1019         hv_store(href, "ENTRIES", 7, newRV((SV *) list), 0);
1020         aref = newAV();
1021         basenames = rr->basenames;
1022         for (i = 0; i < rr->num_bases; i++)
1023         {
1024                 av_push(aref, newSVpv(*basenames++, 0));
1025         }
1026         hv_store(href, "DATABASES", 9, newRV( (SV*) aref), 0);
1027
1028         PUSHMARK(sp);
1029
1030         XPUSHs(sv_2mortal(newRV( (SV*) href)));
1031
1032         PUTBACK;
1033
1034         perl_call_sv(scan_ref, G_SCALAR | G_DISCARD);
1035
1036         SPAGAIN;
1037
1038         temp = hv_fetch(href, "ERR_CODE", 8, 1);
1039         err_code = newSVsv(*temp);
1040
1041         temp = hv_fetch(href, "ERR_STR", 7, 1);
1042         err_str = newSVsv(*temp);
1043
1044         temp = hv_fetch(href, "HANDLE", 6, 1);
1045         point = newSVsv(*temp);
1046
1047         temp = hv_fetch(href, "STATUS", 6, 1);
1048         status = newSVsv(*temp);
1049
1050         temp = hv_fetch(href, "NUMBER", 6, 1);
1051         number = newSVsv(*temp);
1052
1053         temp = hv_fetch(href, "ENTRIES", 7, 1);
1054         entries_ref = newSVsv(*temp);
1055
1056         PUTBACK;
1057         FREETMPS;
1058         LEAVE;
1059
1060         ptr = SvPV(err_str, len);
1061         ODR_errstr = (char *)odr_malloc(rr->stream, len + 1);
1062         strcpy(ODR_errstr, ptr);
1063         rr->errstring = ODR_errstr;
1064         rr->errcode = SvIV(err_code);
1065         rr->num_entries = SvIV(number);
1066         rr->status = SvIV(status);
1067         scan_list = (struct scan_entry *) odr_malloc (rr->stream, rr->num_entries * sizeof(*scan_list));
1068         buffer = scan_list;
1069         entries = (AV *)SvRV(entries_ref);
1070         for (i = 0; i < rr->num_entries; i++)
1071         {
1072                 scan_item = (HV *)SvRV(sv_2mortal(av_shift(entries)));
1073                 temp = hv_fetch(scan_item, "TERM", 4, 1);
1074                 ptr = SvPV(*temp, len);
1075                 buffer->term = (char *) odr_malloc (rr->stream, len + 1);
1076                 strcpy(buffer->term, ptr);
1077                 temp = hv_fetch(scan_item, "OCCURRENCE", 10, 1);
1078                 buffer->occurrences = SvIV(*temp);
1079                 buffer++;
1080                 hv_undef(scan_item);
1081         }
1082         rr->entries = scan_list;
1083         zhandle->handle = point;
1084         handle = zhandle;
1085         sv_free(err_code);
1086         sv_free(err_str);
1087         sv_free(status);
1088         sv_free(number);
1089         hv_undef(href);
1090         sv_free((SV *)href);
1091         av_undef(aref);
1092         sv_free((SV *)aref);
1093         av_undef(list);
1094         sv_free((SV *)list);
1095         av_undef(entries);
1096         /*sv_free((SV *)entries);*/
1097         sv_free(entries_ref);
1098
1099         return 0;
1100 }
1101
1102
1103 bend_initresult *bend_init(bend_initrequest *q)
1104 {
1105         bend_initresult *r = (bend_initresult *) odr_malloc (q->stream, sizeof(*r));
1106         HV *href;
1107         SV **temp;
1108         SV *id;
1109         SV *name;
1110         SV *ver;
1111         SV *err_str;
1112         SV *status;
1113         Zfront_handle *zhandle =  (Zfront_handle *) xmalloc (sizeof(*zhandle));
1114         STRLEN len;
1115         int n;
1116         SV *handle;
1117         /*char *name_ptr;
1118         char *ver_ptr;*/
1119         char *ptr;
1120         char *user = NULL;
1121         char *passwd = NULL;
1122
1123         dSP;
1124         ENTER;
1125         SAVETMPS;
1126
1127         /*q->bend_sort = bend_sort;*/
1128         if (search_ref)
1129         {
1130                 q->bend_search = bend_search;
1131         }
1132         if (present_ref)
1133         {
1134                 q->bend_present = bend_present;
1135         }
1136         /*q->bend_esrequest = bend_esrequest;*/
1137         /*q->bend_delete = bend_delete;*/
1138         if (fetch_ref)
1139         {
1140                 q->bend_fetch = bend_fetch;
1141         }
1142         if (scan_ref)
1143         {
1144                 q->bend_scan = bend_scan;
1145         }
1146         href = newHV();
1147         hv_store(href, "IMP_ID", 6, newSVpv("", 0), 0);
1148         hv_store(href, "IMP_NAME", 8, newSVpv("", 0), 0);
1149         hv_store(href, "IMP_VER", 7, newSVpv("", 0), 0);
1150         hv_store(href, "ERR_CODE", 8, newSViv(0), 0);
1151         hv_store(href, "PEER_NAME", 9, newSVpv(q->peer_name, 0), 0);
1152         hv_store(href, "HANDLE", 6, newSVsv(&sv_undef), 0);
1153         hv_store(href, "PID", 3, newSViv(getpid()), 0);
1154         if (q->auth) {
1155             if (q->auth->which == Z_IdAuthentication_open) {
1156                 char *openpass = xstrdup (q->auth->u.open);
1157                 char *cp = strchr (openpass, '/');
1158                 if (cp) {
1159                     *cp = '\0';
1160                     user = nmem_strdup (odr_getmem (q->stream), openpass);
1161                     passwd = nmem_strdup (odr_getmem (q->stream), cp + 1);
1162                 }
1163                 xfree(openpass);
1164             } else if (q->auth->which == Z_IdAuthentication_idPass) {
1165                 user = q->auth->u.idPass->userId;
1166                 passwd = q->auth->u.idPass->password;
1167             }
1168             /* ### some code paths have user/password unassigned here */
1169             hv_store(href, "USER", 4, newSVpv(user, 0), 0);
1170             hv_store(href, "PASS", 4, newSVpv(passwd, 0), 0);
1171         }
1172
1173         PUSHMARK(sp);
1174
1175         XPUSHs(sv_2mortal(newRV( (SV*) href)));
1176
1177         PUTBACK;
1178
1179         if (init_ref != NULL)
1180         {
1181                 perl_call_sv(init_ref, G_SCALAR | G_DISCARD);
1182         }
1183
1184         SPAGAIN;
1185
1186         temp = hv_fetch(href, "IMP_ID", 6, 1);
1187         id = newSVsv(*temp);
1188
1189         temp = hv_fetch(href, "IMP_NAME", 8, 1);
1190         name = newSVsv(*temp);
1191
1192         temp = hv_fetch(href, "IMP_VER", 7, 1);
1193         ver = newSVsv(*temp);
1194
1195         temp = hv_fetch(href, "ERR_CODE", 8, 1);
1196         status = newSVsv(*temp);
1197
1198         temp = hv_fetch(href, "HANDLE", 6, 1);
1199         handle= newSVsv(*temp);
1200
1201         hv_undef(href);
1202         PUTBACK;
1203         FREETMPS;
1204         LEAVE;
1205         zhandle->handle = handle;
1206         r->errcode = SvIV(status);
1207         r->handle = zhandle;
1208 #if 0 /* implementation_id support is not yet in mainstream Yaz */
1209         ptr = SvPV(id, len);
1210         q->implementation_id = (char *)xmalloc(len + 1);
1211         strcpy(q->implementation_id, ptr);
1212 #endif
1213         ptr = SvPV(name, len);
1214         q->implementation_name = (char *)xmalloc(len + 1);
1215         strcpy(q->implementation_name, ptr);
1216 /*      q->implementation_name = SvPV(name, len);*/
1217         ptr = SvPV(ver, len);
1218         q->implementation_version = (char *)xmalloc(len + 1);
1219         strcpy(q->implementation_version, ptr);
1220
1221         return r;
1222 }
1223
1224
1225 void bend_close(void *handle)
1226 {
1227         HV *href;
1228         Zfront_handle *zhandle = (Zfront_handle *)handle;
1229         SV **temp;
1230
1231         dSP;
1232         ENTER;
1233         SAVETMPS;
1234
1235         if (close_ref == NULL)
1236         {
1237                 return;
1238         }
1239
1240         href = newHV();
1241         hv_store(href, "HANDLE", 6, zhandle->handle, 0);
1242
1243         PUSHMARK(sp);
1244
1245         XPUSHs(sv_2mortal(newRV((SV *)href)));
1246
1247         PUTBACK;
1248
1249         perl_call_sv(close_ref, G_SCALAR | G_DISCARD);
1250
1251         SPAGAIN;
1252
1253         PUTBACK;
1254         FREETMPS;
1255         LEAVE;
1256
1257         xfree(handle);
1258
1259         return;
1260 }
1261
1262
1263 MODULE = Net::Z3950::SimpleServer       PACKAGE = Net::Z3950::SimpleServer
1264
1265 void
1266 set_init_handler(arg)
1267                 SV *arg
1268         CODE:
1269                 init_ref = newSVsv(arg);
1270
1271
1272 void
1273 set_close_handler(arg)
1274                 SV *arg
1275         CODE:
1276                 close_ref = newSVsv(arg);
1277
1278
1279 void
1280 set_sort_handler(arg)
1281                 SV *arg
1282         CODE:
1283                 sort_ref = newSVsv(arg);
1284
1285 void
1286 set_search_handler(arg)
1287                 SV *arg
1288         CODE:
1289                 search_ref = newSVsv(arg);
1290
1291
1292 void
1293 set_fetch_handler(arg)
1294                 SV *arg
1295         CODE:
1296                 fetch_ref = newSVsv(arg);
1297
1298
1299 void
1300 set_present_handler(arg)
1301                 SV *arg
1302         CODE:
1303                 present_ref = newSVsv(arg);
1304
1305
1306 void
1307 set_esrequest_handler(arg)
1308                 SV *arg
1309         CODE:
1310                 esrequest_ref = newSVsv(arg);
1311
1312
1313 void
1314 set_delete_handler(arg)
1315                 SV *arg
1316         CODE:
1317                 delete_ref = newSVsv(arg);
1318
1319
1320 void
1321 set_scan_handler(arg)
1322                 SV *arg
1323         CODE:
1324                 scan_ref = newSVsv(arg);
1325
1326
1327 int
1328 start_server(...)
1329         PREINIT:
1330                 char **argv;
1331                 char **argv_buf;
1332                 char *ptr;
1333                 int i;
1334                 STRLEN len;
1335         CODE:
1336                 argv_buf = (char **)xmalloc((items + 1) * sizeof(char *));
1337                 argv = argv_buf;
1338                 for (i = 0; i < items; i++)
1339                 {
1340                         ptr = SvPV(ST(i), len);
1341                         *argv_buf = (char *)xmalloc(len + 1);
1342                         strcpy(*argv_buf++, ptr);
1343                 }
1344                 *argv_buf = NULL;
1345
1346                 RETVAL = statserv_main(items, argv, bend_init, bend_close);
1347         OUTPUT:
1348                 RETVAL
1349
1350
1351 int
1352 ScanSuccess()
1353         CODE:
1354                 RETVAL = BEND_SCAN_SUCCESS;
1355         OUTPUT:
1356                 RETVAL
1357
1358 int
1359 ScanPartial()
1360         CODE:
1361                 RETVAL = BEND_SCAN_PARTIAL;
1362         OUTPUT:
1363                 RETVAL
1364
1365