src/zoom-c.c

   1 /* This file is part of the YAZ toolkit.
   2  * Copyright (C) 1995-2010 Index Data
   3  * See the file LICENSE for details.
   4  */
   5 /**
   6  * \file zoom-c.c
   7  * \brief Implements ZOOM C interface.
   8  */
   9
  10 #include <assert.h>
  11 #include <string.h>
  12 #include <errno.h>
  13 #include "zoom-p.h"
  14
  15 #include <yaz/yaz-util.h>
  16 #include <yaz/xmalloc.h>
  17 #include <yaz/otherinfo.h>
  18 #include <yaz/log.h>
  19 #include <yaz/pquery.h>
  20 #include <yaz/marcdisp.h>
  21 #include <yaz/diagbib1.h>
  22 #include <yaz/charneg.h>
  23 #include <yaz/ill.h>
  24 #include <yaz/srw.h>
  25 #include <yaz/cql.h>
  26 #include <yaz/ccl.h>
  27 #include <yaz/query-charset.h>
  28 #include <yaz/copy_types.h>
  29 #include <yaz/snprintf.h>
  30 #include <yaz/facet.h>
  31
  32 #include <yaz/shptr.h>
  33
  34 #if SHPTR
  35 YAZ_SHPTR_TYPE(WRBUF)
  36 #endif
  37
  38 static int log_api = 0;
  39 static int log_details = 0;
  40
  41 typedef enum {
  42     zoom_pending,
  43     zoom_complete
  44 } zoom_ret;
  45
  46 static void resultset_destroy(ZOOM_resultset r);
  47 static zoom_ret ZOOM_connection_send_init(ZOOM_connection c);
  48 static zoom_ret do_write_ex(ZOOM_connection c, char *buf_out, int len_out);
  49 static char *cql2pqf(ZOOM_connection c, const char *cql);
  50
  51 ZOOM_API(const char *) ZOOM_get_event_str(int event)
  52 {
  53     static const char *ar[] = {
  54         "NONE",
  55         "CONNECT",
  56         "SEND_DATA",
  57         "RECV_DATA",
  58         "TIMEOUT",
  59         "UNKNOWN",
  60         "SEND_APDU",
  61         "RECV_APDU",
  62         "RECV_RECORD",
  63         "RECV_SEARCH",
  64         "END"
  65     };
  66     return ar[event];
  67 }
  68
  69 /*
  70  * This wrapper is just for logging failed lookups.  It would be nicer
  71  * if it could cause failure when a lookup fails, but that's hard.
  72  */
  73 static Odr_oid *zoom_yaz_str_to_z3950oid(ZOOM_connection c,
  74                                      oid_class oid_class, const char *str) {
  75     Odr_oid *res = yaz_string_to_oid_odr(yaz_oid_std(), oid_class, str,
  76                                      c->odr_out);
  77     if (res == 0)
  78         yaz_log(YLOG_WARN, "%p OID lookup (%d, '%s') failed",
  79                 c, (int) oid_class, str);
  80     return res;
  81 }
  82
  83
  84 static void initlog(void)
  85 {
  86     static int log_level_initialized = 0;
  87     if (!log_level_initialized)
  88     {
  89         log_api = yaz_log_module_level("zoom");
  90         log_details = yaz_log_module_level("zoomdetails");
  91         log_level_initialized = 1;
  92     }
  93 }
  94
  95 static ZOOM_Event ZOOM_Event_create(int kind)
  96 {
  97     ZOOM_Event event = (ZOOM_Event) xmalloc(sizeof(*event));
  98     event->kind = kind;
  99     event->next = 0;
 100     event->prev = 0;
 101     yaz_log(log_details, "ZOOM_Event_create(kind=%d)", kind);
 102     return event;
 103 }
 104
 105 static void ZOOM_Event_destroy(ZOOM_Event event)
 106 {
 107     xfree(event);
 108 }
 109
 110 static void ZOOM_connection_put_event(ZOOM_connection c, ZOOM_Event event)
 111 {
 112     if (c->m_queue_back)
 113     {
 114         c->m_queue_back->prev = event;
 115         assert(c->m_queue_front);
 116     }
 117     else
 118     {
 119         assert(!c->m_queue_front);
 120         c->m_queue_front = event;
 121     }
 122     event->next = c->m_queue_back;
 123     event->prev = 0;
 124     c->m_queue_back = event;
 125 }
 126
 127 static ZOOM_Event ZOOM_connection_get_event(ZOOM_connection c)
 128 {
 129     ZOOM_Event event = c->m_queue_front;
 130     if (!event)
 131     {
 132         c->last_event = ZOOM_EVENT_NONE;
 133         return 0;
 134     }
 135     assert(c->m_queue_back);
 136     c->m_queue_front = event->prev;
 137     if (c->m_queue_front)
 138     {
 139         assert(c->m_queue_back);
 140         c->m_queue_front->next = 0;
 141     }
 142     else
 143         c->m_queue_back = 0;
 144     c->last_event = event->kind;
 145     return event;
 146 }
 147
 148 static void ZOOM_connection_remove_events(ZOOM_connection c)
 149 {
 150     ZOOM_Event event;
 151     while ((event = ZOOM_connection_get_event(c)))
 152         ZOOM_Event_destroy(event);
 153 }
 154
 155 ZOOM_API(int) ZOOM_connection_peek_event(ZOOM_connection c)
 156 {
 157     ZOOM_Event event = c->m_queue_front;
 158
 159     return event ? event->kind : ZOOM_EVENT_NONE;
 160 }
 161
 162 void ZOOM_connection_remove_tasks(ZOOM_connection c);
 163
 164 static void set_dset_error(ZOOM_connection c, int error,
 165                            const char *dset,
 166                            const char *addinfo, const char *addinfo2)
 167 {
 168     char *cp;
 169
 170     xfree(c->addinfo);
 171     c->addinfo = 0;
 172     c->error = error;
 173     if (!c->diagset || strcmp(dset, c->diagset))
 174     {
 175         xfree(c->diagset);
 176         c->diagset = xstrdup(dset);
 177         /* remove integer part from SRW diagset .. */
 178         if ((cp = strrchr(c->diagset, '/')))
 179             *cp = '\0';
 180     }
 181     if (addinfo && addinfo2)
 182     {
 183         c->addinfo = (char*) xmalloc(strlen(addinfo) + strlen(addinfo2) + 2);
 184         strcpy(c->addinfo, addinfo);
 185         strcat(c->addinfo, addinfo2);
 186     }
 187     else if (addinfo)
 188         c->addinfo = xstrdup(addinfo);
 189     if (error != ZOOM_ERROR_NONE)
 190     {
 191         yaz_log(log_api, "%p set_dset_error %s %s:%d %s %s",
 192                 c, c->host_port ? c->host_port : "<>", dset, error,
 193                 addinfo ? addinfo : "",
 194                 addinfo2 ? addinfo2 : "");
 195         ZOOM_connection_remove_tasks(c);
 196     }
 197 }
 198
 199 static int uri_to_code(const char *uri)
 200 {
 201     int code = 0;
 202     const char *cp;
 203     if ((cp = strrchr(uri, '/')))
 204         code = atoi(cp+1);
 205     return code;
 206 }
 207
 208 #if YAZ_HAVE_XML2
 209 static void set_HTTP_error(ZOOM_connection c, int error,
 210                            const char *addinfo, const char *addinfo2)
 211 {
 212     set_dset_error(c, error, "HTTP", addinfo, addinfo2);
 213 }
 214
 215 static void set_SRU_error(ZOOM_connection c, Z_SRW_diagnostic *d)
 216 {
 217     const char *uri = d->uri;
 218     if (uri)
 219         set_dset_error(c, uri_to_code(uri), uri, d->details, 0);
 220 }
 221
 222 #endif
 223
 224
 225 static void set_ZOOM_error(ZOOM_connection c, int error,
 226                            const char *addinfo)
 227 {
 228     set_dset_error(c, error, "ZOOM", addinfo, 0);
 229 }
 230
 231 static void clear_error(ZOOM_connection c)
 232 {
 233     /*
 234      * If an error is tied to an operation then it's ok to clear: for
 235      * example, a diagnostic returned from a search is cleared by a
 236      * subsequent search.  However, problems such as Connection Lost
 237      * or Init Refused are not cleared, because they are not
 238      * recoverable: doing another search doesn't help.
 239      */
 240
 241     ZOOM_connection_remove_events(c);
 242     switch (c->error)
 243     {
 244     case ZOOM_ERROR_CONNECT:
 245     case ZOOM_ERROR_MEMORY:
 246     case ZOOM_ERROR_DECODE:
 247     case ZOOM_ERROR_CONNECTION_LOST:
 248     case ZOOM_ERROR_INIT:
 249     case ZOOM_ERROR_INTERNAL:
 250     case ZOOM_ERROR_UNSUPPORTED_PROTOCOL:
 251         break;
 252     default:
 253         set_ZOOM_error(c, ZOOM_ERROR_NONE, 0);
 254     }
 255 }
 256
 257 void ZOOM_connection_show_task(ZOOM_task task)
 258 {
 259     switch(task->which)
 260     {
 261     case ZOOM_TASK_SEARCH:
 262         yaz_log(YLOG_LOG, "search p=%p", task);
 263         break;
 264     case ZOOM_TASK_RETRIEVE:
 265         yaz_log(YLOG_LOG, "retrieve p=%p", task);
 266         break;
 267     case ZOOM_TASK_CONNECT:
 268         yaz_log(YLOG_LOG, "connect p=%p", task);
 269         break;
 270     case ZOOM_TASK_SCAN:
 271         yaz_log(YLOG_LOG, "scan p=%p", task);
 272         break;
 273     }
 274 }
 275
 276 void ZOOM_connection_show_tasks(ZOOM_connection c)
 277 {
 278     ZOOM_task task;
 279     yaz_log(YLOG_LOG, "connection p=%p tasks", c);
 280     for (task = c->tasks; task; task = task->next)
 281         ZOOM_connection_show_task(task);
 282 }
 283
 284 ZOOM_task ZOOM_connection_add_task(ZOOM_connection c, int which)
 285 {
 286     ZOOM_task *taskp = &c->tasks;
 287     while (*taskp)
 288         taskp = &(*taskp)->next;
 289     *taskp = (ZOOM_task) xmalloc(sizeof(**taskp));
 290     (*taskp)->running = 0;
 291     (*taskp)->which = which;
 292     (*taskp)->next = 0;
 293     clear_error(c);
 294     return *taskp;
 295 }
 296
 297 ZOOM_API(int) ZOOM_connection_is_idle(ZOOM_connection c)
 298 {
 299     return c->tasks ? 0 : 1;
 300 }
 301
 302 ZOOM_task ZOOM_connection_insert_task(ZOOM_connection c, int which)
 303 {
 304     ZOOM_task task = (ZOOM_task) xmalloc(sizeof(*task));
 305
 306     task->next = c->tasks;
 307     c->tasks = task;
 308
 309     task->running = 0;
 310     task->which = which;
 311     clear_error(c);
 312     return task;
 313 }
 314
 315 void ZOOM_connection_remove_task(ZOOM_connection c)
 316 {
 317     ZOOM_task task = c->tasks;
 318
 319     if (task)
 320     {
 321         c->tasks = task->next;
 322         switch (task->which)
 323         {
 324         case ZOOM_TASK_SEARCH:
 325             resultset_destroy(task->u.search.resultset);
 326             xfree(task->u.search.syntax);
 327             xfree(task->u.search.elementSetName);
 328             break;
 329         case ZOOM_TASK_RETRIEVE:
 330             resultset_destroy(task->u.retrieve.resultset);
 331             xfree(task->u.retrieve.syntax);
 332             xfree(task->u.retrieve.elementSetName);
 333             break;
 334         case ZOOM_TASK_CONNECT:
 335             break;
 336         case ZOOM_TASK_SCAN:
 337             ZOOM_scanset_destroy(task->u.scan.scan);
 338             break;
 339         case ZOOM_TASK_PACKAGE:
 340             ZOOM_package_destroy(task->u.package);
 341             break;
 342         case ZOOM_TASK_SORT:
 343             resultset_destroy(task->u.sort.resultset);
 344             ZOOM_query_destroy(task->u.sort.q);
 345             break;
 346         default:
 347             assert(0);
 348         }
 349         xfree(task);
 350
 351         if (!c->tasks)
 352         {
 353             ZOOM_Event event = ZOOM_Event_create(ZOOM_EVENT_END);
 354             ZOOM_connection_put_event(c, event);
 355         }
 356     }
 357 }
 358
 359 void ZOOM_connection_remove_tasks(ZOOM_connection c)
 360 {
 361     while (c->tasks)
 362         ZOOM_connection_remove_task(c);
 363 }
 364
 365 static ZOOM_record record_cache_lookup(ZOOM_resultset r, int pos,
 366                                        const char *syntax,
 367                                        const char *elementSetName);
 368
 369 ZOOM_API(ZOOM_connection)
 370     ZOOM_connection_create(ZOOM_options options)
 371 {
 372     ZOOM_connection c = (ZOOM_connection) xmalloc(sizeof(*c));
 373
 374     initlog();
 375
 376     yaz_log(log_api, "%p ZOOM_connection_create", c);
 377
 378     c->proto = PROTO_Z3950;
 379     c->cs = 0;
 380     ZOOM_connection_set_mask(c, 0);
 381     c->reconnect_ok = 0;
 382     c->state = STATE_IDLE;
 383     c->addinfo = 0;
 384     c->diagset = 0;
 385     set_ZOOM_error(c, ZOOM_ERROR_NONE, 0);
 386     c->buf_in = 0;
 387     c->len_in = 0;
 388     c->buf_out = 0;
 389     c->len_out = 0;
 390     c->resultsets = 0;
 391
 392     c->options = ZOOM_options_create_with_parent(options);
 393
 394     c->host_port = 0;
 395     c->path = 0;
 396     c->proxy = 0;
 397
 398     c->charset = c->lang = 0;
 399
 400     c->cookie_out = 0;
 401     c->cookie_in = 0;
 402     c->client_IP = 0;
 403     c->tasks = 0;
 404
 405     c->user = 0;
 406     c->group = 0;
 407     c->password = 0;
 408
 409     c->maximum_record_size = 0;
 410     c->preferred_message_size = 0;
 411
 412     c->odr_in = odr_createmem(ODR_DECODE);
 413     c->odr_out = odr_createmem(ODR_ENCODE);
 414     c->odr_print = 0;
 415
 416     c->async = 0;
 417     c->support_named_resultsets = 0;
 418     c->last_event = ZOOM_EVENT_NONE;
 419
 420     c->m_queue_front = 0;
 421     c->m_queue_back = 0;
 422
 423     c->sru_version = 0;
 424     c->no_redirects = 0;
 425     return c;
 426 }
 427
 428
 429 /* set database names. Take local databases (if set); otherwise
 430    take databases given in ZURL (if set); otherwise use Default */
 431 static char **set_DatabaseNames(ZOOM_connection con, ZOOM_options options,
 432                                 int *num, ODR odr)
 433 {
 434     char **databaseNames;
 435     const char *cp = ZOOM_options_get(options, "databaseName");
 436
 437     if ((!cp || !*cp) && con->host_port)
 438     {
 439         if (strncmp(con->host_port, "unix:", 5) == 0)
 440             cp = strchr(con->host_port+5, ':');
 441         else
 442             cp = strchr(con->host_port, '/');
 443         if (cp)
 444             cp++;
 445     }
 446     if (!cp)
 447         cp = "Default";
 448     nmem_strsplit(odr_getmem(odr), "+", cp,  &databaseNames, num);
 449     return databaseNames;
 450 }
 451
 452 ZOOM_API(ZOOM_connection)
 453     ZOOM_connection_new(const char *host, int portnum)
 454 {
 455     ZOOM_connection c = ZOOM_connection_create(0);
 456
 457     ZOOM_connection_connect(c, host, portnum);
 458     return c;
 459 }
 460
 461 static zoom_sru_mode get_sru_mode_from_string(const char *s)
 462 {
 463     if (!s || !*s)
 464         return zoom_sru_soap;
 465     if (!yaz_matchstr(s, "soap"))
 466         return zoom_sru_soap;
 467     else if (!yaz_matchstr(s, "get"))
 468         return zoom_sru_get;
 469     else if (!yaz_matchstr(s, "post"))
 470         return zoom_sru_post;
 471     return zoom_sru_error;
 472 }
 473
 474 ZOOM_API(void)
 475     ZOOM_connection_connect(ZOOM_connection c,
 476                             const char *host, int portnum)
 477 {
 478     const char *val;
 479     ZOOM_task task;
 480
 481     initlog();
 482
 483     yaz_log(log_api, "%p ZOOM_connection_connect host=%s portnum=%d",
 484             c, host ? host : "null", portnum);
 485
 486     set_ZOOM_error(c, ZOOM_ERROR_NONE, 0);
 487     ZOOM_connection_remove_tasks(c);
 488
 489     if (c->odr_print)
 490     {
 491         odr_setprint(c->odr_print, 0); /* prevent destroy from fclose'ing */
 492         odr_destroy(c->odr_print);
 493     }
 494     if (ZOOM_options_get_bool(c->options, "apdulog", 0))
 495     {
 496         c->odr_print = odr_createmem(ODR_PRINT);
 497         odr_setprint(c->odr_print, yaz_log_file());
 498     }
 499     else
 500         c->odr_print = 0;
 501
 502     if (c->cs)
 503     {
 504         yaz_log(log_details, "%p ZOOM_connection_connect reconnect ok", c);
 505         c->reconnect_ok = 1;
 506         return;
 507     }
 508     yaz_log(log_details, "%p ZOOM_connection_connect connect", c);
 509     xfree(c->proxy);
 510     c->proxy = 0;
 511     val = ZOOM_options_get(c->options, "proxy");
 512     if (val && *val)
 513     {
 514         yaz_log(log_details, "%p ZOOM_connection_connect proxy=%s", c, val);
 515         c->proxy = xstrdup(val);
 516     }
 517
 518     xfree(c->charset);
 519     c->charset = 0;
 520     val = ZOOM_options_get(c->options, "charset");
 521     if (val && *val)
 522     {
 523         yaz_log(log_details, "%p ZOOM_connection_connect charset=%s", c, val);
 524         c->charset = xstrdup(val);
 525     }
 526
 527     xfree(c->lang);
 528     val = ZOOM_options_get(c->options, "lang");
 529     if (val && *val)
 530     {
 531         yaz_log(log_details, "%p ZOOM_connection_connect lang=%s", c, val);
 532         c->lang = xstrdup(val);
 533     }
 534     else
 535         c->lang = 0;
 536
 537     if (host)
 538     {
 539         xfree(c->host_port);
 540         if (portnum)
 541         {
 542             char hostn[128];
 543             sprintf(hostn, "%.80s:%d", host, portnum);
 544             c->host_port = xstrdup(hostn);
 545         }
 546         else
 547             c->host_port = xstrdup(host);
 548     }
 549
 550     {
 551         /*
 552          * If the "<scheme>:" part of the host string is preceded by one
 553          * or more comma-separated <name>=<value> pairs, these are taken
 554          * to be options to be set on the connection object.  Among other
 555          * applications, this facility can be used to embed authentication
 556          * in a host string:
 557          *          user=admin,password=secret,tcp:localhost:9999
 558          */
 559         char *remainder = c->host_port;
 560         char *pcolon = strchr(remainder, ':');
 561         char *pcomma;
 562         char *pequals;
 563         while ((pcomma = strchr(remainder, ',')) != 0 &&
 564                (pcolon == 0 || pcomma < pcolon)) {
 565             *pcomma = '\0';
 566             if ((pequals = strchr(remainder, '=')) != 0) {
 567                 *pequals = '\0';
 568                 /*printf("# setting '%s'='%s'\n", remainder, pequals+1);*/
 569                 ZOOM_connection_option_set(c, remainder, pequals+1);
 570             }
 571             remainder = pcomma+1;
 572         }
 573
 574         if (remainder != c->host_port) {
 575             xfree(c->host_port);
 576             c->host_port = xstrdup(remainder);
 577             /*printf("# reset hp='%s'\n", remainder);*/
 578         }
 579     }
 580
 581     val = ZOOM_options_get(c->options, "sru");
 582     c->sru_mode = get_sru_mode_from_string(val);
 583
 584     xfree(c->sru_version);
 585     val = ZOOM_options_get(c->options, "sru_version");
 586     c->sru_version = xstrdup(val ? val : "1.2");
 587
 588     ZOOM_options_set(c->options, "host", c->host_port);
 589
 590     xfree(c->cookie_out);
 591     c->cookie_out = 0;
 592     val = ZOOM_options_get(c->options, "cookie");
 593     if (val && *val)
 594     {
 595         yaz_log(log_details, "%p ZOOM_connection_connect cookie=%s", c, val);
 596         c->cookie_out = xstrdup(val);
 597     }
 598
 599     xfree(c->client_IP);
 600     c->client_IP = 0;
 601     val = ZOOM_options_get(c->options, "clientIP");
 602     if (val && *val)
 603     {
 604         yaz_log(log_details, "%p ZOOM_connection_connect clientIP=%s",
 605                 c, val);
 606         c->client_IP = xstrdup(val);
 607     }
 608
 609     xfree(c->group);
 610     c->group = 0;
 611     val = ZOOM_options_get(c->options, "group");
 612     if (val && *val)
 613         c->group = xstrdup(val);
 614
 615     xfree(c->user);
 616     c->user = 0;
 617     val = ZOOM_options_get(c->options, "user");
 618     if (val && *val)
 619         c->user = xstrdup(val);
 620
 621     xfree(c->password);
 622     c->password = 0;
 623     val = ZOOM_options_get(c->options, "password");
 624     if (!val)
 625         val = ZOOM_options_get(c->options, "pass");
 626
 627     if (val && *val)
 628         c->password = xstrdup(val);
 629
 630     c->maximum_record_size =
 631         ZOOM_options_get_int(c->options, "maximumRecordSize", 1024*1024);
 632     c->preferred_message_size =
 633         ZOOM_options_get_int(c->options, "preferredMessageSize", 1024*1024);
 634
 635     c->async = ZOOM_options_get_bool(c->options, "async", 0);
 636     yaz_log(log_details, "%p ZOOM_connection_connect async=%d", c, c->async);
 637
 638     task = ZOOM_connection_add_task(c, ZOOM_TASK_CONNECT);
 639
 640     if (!c->async)
 641     {
 642         while (ZOOM_event(1, &c))
 643             ;
 644     }
 645 }
 646
 647 ZOOM_API(ZOOM_query)
 648     ZOOM_query_create(void)
 649 {
 650     ZOOM_query s = (ZOOM_query) xmalloc(sizeof(*s));
 651
 652     yaz_log(log_details, "%p ZOOM_query_create", s);
 653     s->refcount = 1;
 654     s->z_query = 0;
 655     s->sort_spec = 0;
 656     s->odr = odr_createmem(ODR_ENCODE);
 657     s->query_string = 0;
 658
 659     return s;
 660 }
 661
 662 ZOOM_API(void)
 663     ZOOM_query_destroy(ZOOM_query s)
 664 {
 665     if (!s)
 666         return;
 667
 668     (s->refcount)--;
 669     yaz_log(log_details, "%p ZOOM_query_destroy count=%d", s, s->refcount);
 670     if (s->refcount == 0)
 671     {
 672         odr_destroy(s->odr);
 673         xfree(s);
 674     }
 675 }
 676
 677 ZOOM_API(int)
 678     ZOOM_query_prefix(ZOOM_query s, const char *str)
 679 {
 680     s->query_string = odr_strdup(s->odr, str);
 681     s->z_query = (Z_Query *) odr_malloc(s->odr, sizeof(*s->z_query));
 682     s->z_query->which = Z_Query_type_1;
 683     s->z_query->u.type_1 =  p_query_rpn(s->odr, str);
 684     if (!s->z_query->u.type_1)
 685     {
 686         yaz_log(log_details, "%p ZOOM_query_prefix str=%s failed", s, str);
 687         s->z_query = 0;
 688         return -1;
 689     }
 690     yaz_log(log_details, "%p ZOOM_query_prefix str=%s", s, str);
 691     return 0;
 692 }
 693
 694 ZOOM_API(int)
 695     ZOOM_query_cql(ZOOM_query s, const char *str)
 696 {
 697     Z_External *ext;
 698
 699     s->query_string = odr_strdup(s->odr, str);
 700
 701     ext = (Z_External *) odr_malloc(s->odr, sizeof(*ext));
 702     ext->direct_reference = odr_oiddup(s->odr, yaz_oid_userinfo_cql);
 703     ext->indirect_reference = 0;
 704     ext->descriptor = 0;
 705     ext->which = Z_External_CQL;
 706     ext->u.cql = s->query_string;
 707
 708     s->z_query = (Z_Query *) odr_malloc(s->odr, sizeof(*s->z_query));
 709     s->z_query->which = Z_Query_type_104;
 710     s->z_query->u.type_104 =  ext;
 711
 712     yaz_log(log_details, "%p ZOOM_query_cql str=%s", s, str);
 713
 714     return 0;
 715 }
 716
 717 /*
 718  * Translate the CQL string client-side into RPN which is passed to
 719  * the server.  This is useful for server's that don't themselves
 720  * support CQL, for which ZOOM_query_cql() is useless.  `conn' is used
 721  * only as a place to stash diagnostics if compilation fails; if this
 722  * information is not needed, a null pointer may be used.
 723  */
 724 ZOOM_API(int)
 725     ZOOM_query_cql2rpn(ZOOM_query s, const char *str, ZOOM_connection conn)
 726 {
 727     char *rpn;
 728     int ret;
 729     ZOOM_connection freeme = 0;
 730
 731     yaz_log(log_details, "%p ZOOM_query_cql2rpn str=%s conn=%p", s, str, conn);
 732     if (conn == 0)
 733         conn = freeme = ZOOM_connection_create(0);
 734
 735     rpn = cql2pqf(conn, str);
 736     if (freeme != 0)
 737         ZOOM_connection_destroy(freeme);
 738     if (rpn == 0)
 739         return -1;
 740
 741     ret = ZOOM_query_prefix(s, rpn);
 742     xfree(rpn);
 743     return ret;
 744 }
 745
 746 /*
 747  * Analogous in every way to ZOOM_query_cql2rpn(), except that there
 748  * is no analogous ZOOM_query_ccl() that just sends uninterpreted CCL
 749  * to the server, as the YAZ GFS doesn't know how to handle this.
 750  */
 751 ZOOM_API(int)
 752     ZOOM_query_ccl2rpn(ZOOM_query s, const char *str, const char *config,
 753                        int *ccl_error, const char **error_string,
 754                        int *error_pos)
 755 {
 756     int ret;
 757     struct ccl_rpn_node *rpn;
 758     CCL_bibset bibset = ccl_qual_mk();
 759
 760     if (config)
 761         ccl_qual_buf(bibset, config);
 762
 763     rpn = ccl_find_str(bibset, str, ccl_error, error_pos);
 764     if (!rpn)
 765     {
 766         *error_string = ccl_err_msg(*ccl_error);
 767         ret = -1;
 768     }
 769     else
 770     {
 771         WRBUF wr = wrbuf_alloc();
 772         ccl_pquery(wr, rpn);
 773         ccl_rpn_delete(rpn);
 774         ret = ZOOM_query_prefix(s, wrbuf_cstr(wr));
 775         wrbuf_destroy(wr);
 776     }
 777     ccl_qual_rm(&bibset);
 778     return ret;
 779 }
 780
 781 ZOOM_API(int)
 782     ZOOM_query_sortby(ZOOM_query s, const char *criteria)
 783 {
 784     s->sort_spec = yaz_sort_spec(s->odr, criteria);
 785     if (!s->sort_spec)
 786     {
 787         yaz_log(log_details, "%p ZOOM_query_sortby criteria=%s failed",
 788                 s, criteria);
 789         return -1;
 790     }
 791     yaz_log(log_details, "%p ZOOM_query_sortby criteria=%s", s, criteria);
 792     return 0;
 793 }
 794
 795 static zoom_ret do_write(ZOOM_connection c);
 796
 797 ZOOM_API(void) ZOOM_resultset_release(ZOOM_resultset r)
 798 {
 799 #if ZOOM_RESULT_LISTS
 800 #else
 801     if (r->connection)
 802     {
 803         /* remove ourselves from the resultsets in connection */
 804         ZOOM_resultset *rp = &r->connection->resultsets;
 805         while (1)
 806         {
 807             assert(*rp);   /* we must be in this list!! */
 808             if (*rp == r)
 809             {   /* OK, we're here - take us out of it */
 810                 *rp = (*rp)->next;
 811                 break;
 812             }
 813             rp = &(*rp)->next;
 814         }
 815         r->connection = 0;
 816     }
 817 #endif
 818 }
 819
 820 ZOOM_API(void)
 821     ZOOM_connection_destroy(ZOOM_connection c)
 822 {
 823 #if ZOOM_RESULT_LISTS
 824     ZOOM_resultsets list;
 825 #else
 826     ZOOM_resultset r;
 827 #endif
 828     if (!c)
 829         return;
 830     yaz_log(log_api, "%p ZOOM_connection_destroy", c);
 831     if (c->cs)
 832         cs_close(c->cs);
 833
 834 #if ZOOM_RESULT_LISTS
 835     // Remove the connection's usage of resultsets
 836     list = c->resultsets;
 837     while (list) {
 838         ZOOM_resultsets removed = list;
 839         ZOOM_resultset_destroy(list->resultset);
 840         list = list->next;
 841         xfree(removed);
 842     }
 843 #else
 844     for (r = c->resultsets; r; r = r->next)
 845         r->connection = 0;
 846 #endif
 847
 848     xfree(c->buf_in);
 849     xfree(c->addinfo);
 850     xfree(c->diagset);
 851     odr_destroy(c->odr_in);
 852     odr_destroy(c->odr_out);
 853     if (c->odr_print)
 854     {
 855         odr_setprint(c->odr_print, 0); /* prevent destroy from fclose'ing */
 856         odr_destroy(c->odr_print);
 857     }
 858     ZOOM_options_destroy(c->options);
 859     ZOOM_connection_remove_tasks(c);
 860     ZOOM_connection_remove_events(c);
 861     xfree(c->host_port);
 862     xfree(c->path);
 863     xfree(c->proxy);
 864     xfree(c->charset);
 865     xfree(c->lang);
 866     xfree(c->cookie_out);
 867     xfree(c->cookie_in);
 868     xfree(c->client_IP);
 869     xfree(c->user);
 870     xfree(c->group);
 871     xfree(c->password);
 872     xfree(c->sru_version);
 873     xfree(c);
 874 }
 875
 876 void ZOOM_resultset_addref(ZOOM_resultset r)
 877 {
 878     if (r)
 879     {
 880         yaz_mutex_enter(r->mutex);
 881         (r->refcount)++;
 882         yaz_log(log_details, "%p ZOOM_resultset_addref count=%d",
 883                 r, r->refcount);
 884         yaz_mutex_leave(r->mutex);
 885     }
 886 }
 887
 888 ZOOM_resultset ZOOM_resultset_create(void)
 889 {
 890     int i;
 891     ZOOM_resultset r = (ZOOM_resultset) xmalloc(sizeof(*r));
 892
 893     initlog();
 894
 895     yaz_log(log_details, "%p ZOOM_resultset_create", r);
 896     r->refcount = 1;
 897     r->size = 0;
 898     r->odr = odr_createmem(ODR_ENCODE);
 899     r->piggyback = 1;
 900     r->setname = 0;
 901     r->schema = 0;
 902     r->step = 0;
 903     for (i = 0; i<RECORD_HASH_SIZE; i++)
 904         r->record_hash[i] = 0;
 905     r->r_sort_spec = 0;
 906     r->query = 0;
 907     r->connection = 0;
 908     r->databaseNames = 0;
 909     r->num_databaseNames = 0;
 910     r->facets = 0;
 911     r->facets_names = 0;
 912     r->mutex = 0;
 913     yaz_mutex_create(&r->mutex);
 914 #if SHPTR
 915     {
 916         WRBUF w = wrbuf_alloc();
 917         YAZ_SHPTR_INIT(r->record_wrbuf, w);
 918     }
 919 #endif
 920     return r;
 921 }
 922
 923 ZOOM_API(ZOOM_resultset)
 924     ZOOM_connection_search_pqf(ZOOM_connection c, const char *q)
 925 {
 926     ZOOM_resultset r;
 927     ZOOM_query s = ZOOM_query_create();
 928
 929     ZOOM_query_prefix(s, q);
 930
 931     r = ZOOM_connection_search(c, s);
 932     ZOOM_query_destroy(s);
 933     return r;
 934 }
 935
 936 ZOOM_API(ZOOM_resultset)
 937     ZOOM_connection_search(ZOOM_connection c, ZOOM_query q)
 938 {
 939     ZOOM_resultset r = ZOOM_resultset_create();
 940     ZOOM_task task;
 941     const char *cp;
 942     int start, count;
 943     const char *syntax, *elementSetName;
 944 #if ZOOM_RESULT_LISTS
 945     ZOOM_resultsets set;
 946 #endif
 947
 948     yaz_log(log_api, "%p ZOOM_connection_search set %p query %p", c, r, q);
 949     r->r_sort_spec = q->sort_spec;
 950     r->query = q;
 951
 952     r->options = ZOOM_options_create_with_parent(c->options);
 953
 954     start = ZOOM_options_get_int(r->options, "start", 0);
 955     count = ZOOM_options_get_int(r->options, "count", 0);
 956     {
 957         /* If "presentChunk" is defined use that; otherwise "step" */
 958         const char *cp = ZOOM_options_get(r->options, "presentChunk");
 959         r->step = ZOOM_options_get_int(r->options,
 960                                        (cp != 0 ? "presentChunk": "step"), 0);
 961     }
 962     r->piggyback = ZOOM_options_get_bool(r->options, "piggyback", 1);
 963     cp = ZOOM_options_get(r->options, "setname");
 964     if (cp)
 965         r->setname = xstrdup(cp);
 966     cp = ZOOM_options_get(r->options, "schema");
 967     if (cp)
 968         r->schema = xstrdup(cp);
 969
 970     r->databaseNames = set_DatabaseNames(c, c->options, &r->num_databaseNames,
 971                                          r->odr);
 972
 973     r->connection = c;
 974
 975 #if ZOOM_RESULT_LISTS
 976     yaz_log(log_details, "%p ZOOM_connection_search: Adding new resultset (%p) to resultsets (%p) ", c, r, c->resultsets);
 977     set = xmalloc(sizeof(*set));
 978     ZOOM_resultset_addref(r);
 979     set->resultset = r;
 980     set->next = c->resultsets;
 981     c->resultsets = set;
 982 #else
 983     r->next = c->resultsets;
 984     c->resultsets = r;
 985 #endif
 986     if (c->host_port && c->proto == PROTO_HTTP)
 987     {
 988         if (!c->cs)
 989         {
 990             yaz_log(log_details, "ZOOM_connection_search: no comstack");
 991             ZOOM_connection_add_task(c, ZOOM_TASK_CONNECT);
 992         }
 993         else
 994         {
 995             yaz_log(log_details, "ZOOM_connection_search: reconnect");
 996             c->reconnect_ok = 1;
 997         }
 998     }
 999
1000     task = ZOOM_connection_add_task(c, ZOOM_TASK_SEARCH);
1001     task->u.search.resultset = r;
1002     task->u.search.start = start;
1003     task->u.search.count = count;
1004     task->u.search.recv_search_fired = 0;
1005
1006     syntax = ZOOM_options_get(r->options, "preferredRecordSyntax");
1007     task->u.search.syntax = syntax ? xstrdup(syntax) : 0;
1008     elementSetName = ZOOM_options_get(r->options, "elementSetName");
1009     task->u.search.elementSetName = elementSetName
1010         ? xstrdup(elementSetName) : 0;
1011
1012     ZOOM_resultset_addref(r);
1013
1014     (q->refcount)++;
1015
1016     if (!c->async)
1017     {
1018         while (ZOOM_event(1, &c))
1019             ;
1020     }
1021     return r;
1022 }
1023
1024 ZOOM_API(void)
1025     ZOOM_resultset_sort(ZOOM_resultset r,
1026                          const char *sort_type, const char *sort_spec)
1027 {
1028     (void) ZOOM_resultset_sort1(r, sort_type, sort_spec);
1029 }
1030
1031 ZOOM_API(int)
1032     ZOOM_resultset_sort1(ZOOM_resultset r,
1033                          const char *sort_type, const char *sort_spec)
1034 {
1035     ZOOM_connection c = r->connection;
1036     ZOOM_task task;
1037     ZOOM_query newq;
1038
1039     newq = ZOOM_query_create();
1040     if (ZOOM_query_sortby(newq, sort_spec) < 0)
1041         return -1;
1042
1043     yaz_log(log_api, "%p ZOOM_resultset_sort r=%p sort_type=%s sort_spec=%s",
1044             r, r, sort_type, sort_spec);
1045     if (!c)
1046         return 0;
1047
1048     if (c->host_port && c->proto == PROTO_HTTP)
1049     {
1050         if (!c->cs)
1051         {
1052             yaz_log(log_details, "%p ZOOM_resultset_sort: no comstack", r);
1053             ZOOM_connection_add_task(c, ZOOM_TASK_CONNECT);
1054         }
1055         else
1056         {
1057             yaz_log(log_details, "%p ZOOM_resultset_sort: prepare reconnect",
1058                     r);
1059             c->reconnect_ok = 1;
1060         }
1061     }
1062
1063     ZOOM_resultset_cache_reset(r);
1064     task = ZOOM_connection_add_task(c, ZOOM_TASK_SORT);
1065     task->u.sort.resultset = r;
1066     task->u.sort.q = newq;
1067
1068     ZOOM_resultset_addref(r);
1069
1070     if (!c->async)
1071     {
1072         while (ZOOM_event(1, &c))
1073             ;
1074     }
1075
1076     return 0;
1077 }
1078
1079 static void ZOOM_record_release(ZOOM_record rec)
1080 {
1081     if (!rec)
1082         return;
1083
1084 #if SHPTR
1085     if (rec->record_wrbuf)
1086         YAZ_SHPTR_DEC(rec->record_wrbuf, wrbuf_destroy);
1087 #else
1088     if (rec->wrbuf)
1089         wrbuf_destroy(rec->wrbuf);
1090 #endif
1091
1092     if (rec->odr)
1093         odr_destroy(rec->odr);
1094 }
1095
1096 ZOOM_API(void)
1097     ZOOM_resultset_cache_reset(ZOOM_resultset r)
1098 {
1099     int i;
1100     for (i = 0; i<RECORD_HASH_SIZE; i++)
1101     {
1102         ZOOM_record_cache rc;
1103         for (rc = r->record_hash[i]; rc; rc = rc->next)
1104         {
1105             ZOOM_record_release(&rc->rec);
1106         }
1107         r->record_hash[i] = 0;
1108     }
1109 }
1110
1111 ZOOM_API(void)
1112     ZOOM_resultset_destroy(ZOOM_resultset r)
1113 {
1114     resultset_destroy(r);
1115 }
1116
1117 static void resultset_destroy(ZOOM_resultset r)
1118 {
1119     if (!r)
1120         return;
1121     yaz_mutex_enter(r->mutex);
1122     (r->refcount)--;
1123     yaz_log(log_details, "%p ZOOM_resultset_destroy r=%p count=%d",
1124             r, r, r->refcount);
1125     if (r->refcount == 0)
1126     {
1127         yaz_mutex_leave(r->mutex);
1128
1129         yaz_log(log_details, "%p ZOOM_connection resultset_destroy: Deleting resultset (%p) ", r->connection, r);
1130         ZOOM_resultset_cache_reset(r);
1131         ZOOM_resultset_release(r);
1132         ZOOM_query_destroy(r->query);
1133         ZOOM_options_destroy(r->options);
1134         odr_destroy(r->odr);
1135         xfree(r->setname);
1136         xfree(r->schema);
1137         yaz_mutex_destroy(&r->mutex);
1138 #if SHPTR
1139         YAZ_SHPTR_DEC(r->record_wrbuf, wrbuf_destroy);
1140 #endif
1141         xfree(r);
1142     }
1143     else
1144         yaz_mutex_leave(r->mutex);
1145 }
1146
1147 ZOOM_API(size_t)
1148     ZOOM_resultset_size(ZOOM_resultset r)
1149 {
1150     yaz_log(log_details, "ZOOM_resultset_size r=%p count=" ODR_INT_PRINTF,
1151             r, r->size);
1152     return r->size;
1153 }
1154
1155 static void do_close(ZOOM_connection c)
1156 {
1157     if (c->cs)
1158         cs_close(c->cs);
1159     c->cs = 0;
1160     ZOOM_connection_set_mask(c, 0);
1161     c->state = STATE_IDLE;
1162 }
1163
1164 static int ZOOM_test_reconnect(ZOOM_connection c)
1165 {
1166     ZOOM_Event event;
1167
1168     if (!c->reconnect_ok)
1169         return 0;
1170     do_close(c);
1171     c->reconnect_ok = 0;
1172     c->tasks->running = 0;
1173     ZOOM_connection_insert_task(c, ZOOM_TASK_CONNECT);
1174
1175     event = ZOOM_Event_create(ZOOM_EVENT_CONNECT);
1176     ZOOM_connection_put_event(c, event);
1177
1178     return 1;
1179 }
1180
1181 static void ZOOM_resultset_retrieve(ZOOM_resultset r,
1182                                     int force_sync, int start, int count)
1183 {
1184     ZOOM_task task;
1185     ZOOM_connection c;
1186     const char *cp;
1187     const char *syntax, *elementSetName;
1188
1189     if (!r)
1190         return;
1191     yaz_log(log_details, "%p ZOOM_resultset_retrieve force_sync=%d start=%d"
1192             " count=%d", r, force_sync, start, count);
1193     c = r->connection;
1194     if (!c)
1195         return;
1196
1197     if (c->host_port && c->proto == PROTO_HTTP)
1198     {
1199         if (!c->cs)
1200         {
1201             yaz_log(log_details, "%p ZOOM_resultset_retrieve: no comstack", r);
1202             ZOOM_connection_add_task(c, ZOOM_TASK_CONNECT);
1203         }
1204         else
1205         {
1206             yaz_log(log_details, "%p ZOOM_resultset_retrieve: prepare "
1207                     "reconnect", r);
1208             c->reconnect_ok = 1;
1209         }
1210     }
1211     task = ZOOM_connection_add_task(c, ZOOM_TASK_RETRIEVE);
1212     task->u.retrieve.resultset = r;
1213     task->u.retrieve.start = start;
1214     task->u.retrieve.count = count;
1215
1216     syntax = ZOOM_options_get(r->options, "preferredRecordSyntax");
1217     task->u.retrieve.syntax = syntax ? xstrdup(syntax) : 0;
1218     elementSetName = ZOOM_options_get(r->options, "elementSetName");
1219     task->u.retrieve.elementSetName = elementSetName
1220         ? xstrdup(elementSetName) : 0;
1221
1222     cp = ZOOM_options_get(r->options, "schema");
1223     if (cp)
1224     {
1225         if (!r->schema || strcmp(r->schema, cp))
1226         {
1227             xfree(r->schema);
1228             r->schema = xstrdup(cp);
1229         }
1230     }
1231
1232     ZOOM_resultset_addref(r);
1233
1234     if (!r->connection->async || force_sync)
1235         while (r->connection && ZOOM_event(1, &r->connection))
1236             ;
1237 }
1238
1239 ZOOM_API(void)
1240     ZOOM_resultset_records(ZOOM_resultset r, ZOOM_record *recs,
1241                            size_t start, size_t count)
1242 {
1243     int force_present = 0;
1244
1245     if (!r)
1246         return ;
1247     yaz_log(log_api, "%p ZOOM_resultset_records r=%p start=%ld count=%ld",
1248             r, r, (long) start, (long) count);
1249     if (count && recs)
1250         force_present = 1;
1251     ZOOM_resultset_retrieve(r, force_present, start, count);
1252     if (force_present)
1253     {
1254         size_t i;
1255         for (i = 0; i< count; i++)
1256             recs[i] = ZOOM_resultset_record_immediate(r, i+start);
1257     }
1258 }
1259
1260 ZOOM_API(size_t)
1261     ZOOM_resultset_facets_size(ZOOM_resultset r) {
1262     return r->num_facets;
1263 }
1264
1265
1266 ZOOM_API(ZOOM_facet_field *)
1267     ZOOM_resultset_facets(ZOOM_resultset r)
1268 {
1269     return r->facets;
1270 }
1271
1272 ZOOM_API(const char**)
1273     ZOOM_resultset_facet_names(ZOOM_resultset r)
1274 {
1275     return (const char **) r->facets_names;
1276 }
1277
1278 ZOOM_API(const char*)
1279     ZOOM_facet_field_name(ZOOM_facet_field field)
1280 {
1281     return field->facet_name;
1282 }
1283
1284 ZOOM_API(size_t)
1285     ZOOM_facet_field_term_count(ZOOM_facet_field field)
1286 {
1287     return field->num_terms;
1288 }
1289
1290 ZOOM_API(const char*)
1291     ZOOM_facet_field_get_term(ZOOM_facet_field field, size_t idx, int *freq) {
1292     *freq = field->facet_terms[idx].frequency;
1293     return field->facet_terms[idx].term;
1294 }
1295
1296
1297 static void get_cert(ZOOM_connection c)
1298 {
1299     char *cert_buf;
1300     int cert_len;
1301
1302     if (cs_get_peer_certificate_x509(c->cs, &cert_buf, &cert_len))
1303     {
1304         ZOOM_connection_option_setl(c, "sslPeerCert",
1305                                     cert_buf, cert_len);
1306         xfree(cert_buf);
1307     }
1308 }
1309
1310 static zoom_ret do_connect_host(ZOOM_connection c,
1311                                 const char *effective_host,
1312                                 const char *logical_url);
1313
1314 static zoom_ret do_connect(ZOOM_connection c)
1315 {
1316     const char *effective_host;
1317
1318     if (c->proxy)
1319         effective_host = c->proxy;
1320     else
1321         effective_host = c->host_port;
1322     return do_connect_host(c, effective_host, c->host_port);
1323 }
1324
1325 static zoom_ret do_connect_host(ZOOM_connection c, const char *effective_host,
1326     const char *logical_url)
1327 {
1328     void *add;
1329
1330     yaz_log(log_details, "%p do_connect effective_host=%s", c, effective_host);
1331
1332     if (c->cs)
1333         cs_close(c->cs);
1334     c->cs = cs_create_host(effective_host, 0, &add);
1335
1336     if (c->cs && c->cs->protocol == PROTO_HTTP)
1337     {
1338 #if YAZ_HAVE_XML2
1339         if (logical_url)
1340         {
1341             const char *db = 0;
1342
1343             c->proto = PROTO_HTTP;
1344             cs_get_host_args(logical_url, &db);
1345             xfree(c->path);
1346
1347             c->path = xmalloc(strlen(db) * 3 + 2);
1348             yaz_encode_sru_dbpath_buf(c->path, db);
1349         }
1350 #else
1351         set_ZOOM_error(c, ZOOM_ERROR_UNSUPPORTED_PROTOCOL, "SRW");
1352         do_close(c);
1353         return zoom_complete;
1354 #endif
1355     }
1356     if (c->cs)
1357     {
1358         int ret = cs_connect(c->cs, add);
1359         if (ret == 0)
1360         {
1361             ZOOM_Event event = ZOOM_Event_create(ZOOM_EVENT_CONNECT);
1362             ZOOM_connection_put_event(c, event);
1363             get_cert(c);
1364             if (c->proto == PROTO_Z3950)
1365                 ZOOM_connection_send_init(c);
1366             else
1367             {
1368                 /* no init request for SRW .. */
1369                 assert(c->tasks->which == ZOOM_TASK_CONNECT);
1370                 ZOOM_connection_remove_task(c);
1371                 ZOOM_connection_set_mask(c, 0);
1372                 ZOOM_connection_exec_task(c);
1373             }
1374             c->state = STATE_ESTABLISHED;
1375             return zoom_pending;
1376         }
1377         else if (ret > 0)
1378         {
1379             int mask = ZOOM_SELECT_EXCEPT;
1380             if (c->cs->io_pending & CS_WANT_WRITE)
1381                 mask += ZOOM_SELECT_WRITE;
1382             if (c->cs->io_pending & CS_WANT_READ)
1383                 mask += ZOOM_SELECT_READ;
1384             ZOOM_connection_set_mask(c, mask);
1385             c->state = STATE_CONNECTING;
1386             return zoom_pending;
1387         }
1388     }
1389     c->state = STATE_IDLE;
1390     set_ZOOM_error(c, ZOOM_ERROR_CONNECT, logical_url);
1391     return zoom_complete;
1392 }
1393
1394 static void otherInfo_attach(ZOOM_connection c, Z_APDU *a, ODR out)
1395 {
1396     int i;
1397     for (i = 0; i<200; i++)
1398     {
1399         size_t len;
1400         Odr_oid *oid;
1401         Z_OtherInformation **oi;
1402         char buf[80];
1403         const char *val;
1404         const char *cp;
1405
1406         sprintf(buf, "otherInfo%d", i);
1407         val = ZOOM_options_get(c->options, buf);
1408         if (!val)
1409             break;
1410         cp = strchr(val, ':');
1411         if (!cp)
1412             continue;
1413         len = cp - val;
1414         if (len >= sizeof(buf))
1415             len = sizeof(buf)-1;
1416         memcpy(buf, val, len);
1417         buf[len] = '\0';
1418
1419         oid = yaz_string_to_oid_odr(yaz_oid_std(), CLASS_USERINFO,
1420                                     buf, out);
1421         if (!oid)
1422             continue;
1423
1424         yaz_oi_APDU(a, &oi);
1425         yaz_oi_set_string_oid(oi, out, oid, 1, cp+1);
1426     }
1427 }
1428
1429 static int encode_APDU(ZOOM_connection c, Z_APDU *a, ODR out)
1430 {
1431     assert(a);
1432     if (c->cookie_out)
1433     {
1434         Z_OtherInformation **oi;
1435         yaz_oi_APDU(a, &oi);
1436         yaz_oi_set_string_oid(oi, out, yaz_oid_userinfo_cookie,
1437                               1, c->cookie_out);
1438     }
1439     if (c->client_IP)
1440     {
1441         Z_OtherInformation **oi;
1442         yaz_oi_APDU(a, &oi);
1443         yaz_oi_set_string_oid(oi, out, yaz_oid_userinfo_client_ip,
1444                               1, c->client_IP);
1445     }
1446     otherInfo_attach(c, a, out);
1447     if (!z_APDU(out, &a, 0, 0))
1448     {
1449         FILE *outf = fopen("/tmp/apdu.txt", "a");
1450         if (a && outf)
1451         {
1452             ODR odr_pr = odr_createmem(ODR_PRINT);
1453             fprintf(outf, "a=%p\n", a);
1454             odr_setprint(odr_pr, outf);
1455             z_APDU(odr_pr, &a, 0, 0);
1456             odr_destroy(odr_pr);
1457         }
1458         yaz_log(log_api, "%p encoding_APDU: encoding failed", c);
1459         set_ZOOM_error(c, ZOOM_ERROR_ENCODE, 0);
1460         odr_reset(out);
1461         return -1;
1462     }
1463     if (c->odr_print)
1464         z_APDU(c->odr_print, &a, 0, 0);
1465     yaz_log(log_details, "%p encoding_APDU encoding OK", c);
1466     return 0;
1467 }
1468
1469 static zoom_ret send_APDU(ZOOM_connection c, Z_APDU *a)
1470 {
1471     ZOOM_Event event;
1472     assert(a);
1473     if (encode_APDU(c, a, c->odr_out))
1474         return zoom_complete;
1475     yaz_log(log_details, "%p send APDU type=%d", c, a->which);
1476     c->buf_out = odr_getbuf(c->odr_out, &c->len_out, 0);
1477     event = ZOOM_Event_create(ZOOM_EVENT_SEND_APDU);
1478     ZOOM_connection_put_event(c, event);
1479     odr_reset(c->odr_out);
1480     return do_write(c);
1481 }
1482
1483 /* returns 1 if PDU was sent OK (still pending )
1484    0 if PDU was not sent OK (nothing to wait for)
1485 */
1486
1487 static zoom_ret ZOOM_connection_send_init(ZOOM_connection c)
1488 {
1489     Z_APDU *apdu = zget_APDU(c->odr_out, Z_APDU_initRequest);
1490     Z_InitRequest *ireq = apdu->u.initRequest;
1491     Z_IdAuthentication *auth = (Z_IdAuthentication *)
1492         odr_malloc(c->odr_out, sizeof(*auth));
1493
1494     ODR_MASK_SET(ireq->options, Z_Options_search);
1495     ODR_MASK_SET(ireq->options, Z_Options_present);
1496     ODR_MASK_SET(ireq->options, Z_Options_scan);
1497     ODR_MASK_SET(ireq->options, Z_Options_sort);
1498     ODR_MASK_SET(ireq->options, Z_Options_extendedServices);
1499     ODR_MASK_SET(ireq->options, Z_Options_namedResultSets);
1500
1501     ODR_MASK_SET(ireq->protocolVersion, Z_ProtocolVersion_1);
1502     ODR_MASK_SET(ireq->protocolVersion, Z_ProtocolVersion_2);
1503     ODR_MASK_SET(ireq->protocolVersion, Z_ProtocolVersion_3);
1504
1505     ireq->implementationId =
1506         odr_prepend(c->odr_out,
1507                     ZOOM_options_get(c->options, "implementationId"),
1508                     ireq->implementationId);
1509
1510     ireq->implementationName =
1511         odr_prepend(c->odr_out,
1512                     ZOOM_options_get(c->options, "implementationName"),
1513                     odr_prepend(c->odr_out, "ZOOM-C",
1514                                 ireq->implementationName));
1515
1516     ireq->implementationVersion =
1517         odr_prepend(c->odr_out,
1518                     ZOOM_options_get(c->options, "implementationVersion"),
1519                                 ireq->implementationVersion);
1520
1521     *ireq->maximumRecordSize = c->maximum_record_size;
1522     *ireq->preferredMessageSize = c->preferred_message_size;
1523
1524     if (c->group || c->password)
1525     {
1526         Z_IdPass *pass = (Z_IdPass *) odr_malloc(c->odr_out, sizeof(*pass));
1527         pass->groupId = odr_strdup_null(c->odr_out, c->group);
1528         pass->userId = odr_strdup_null(c->odr_out, c->user);
1529         pass->password = odr_strdup_null(c->odr_out, c->password);
1530         auth->which = Z_IdAuthentication_idPass;
1531         auth->u.idPass = pass;
1532         ireq->idAuthentication = auth;
1533     }
1534     else if (c->user)
1535     {
1536         auth->which = Z_IdAuthentication_open;
1537         auth->u.open = odr_strdup(c->odr_out, c->user);
1538         ireq->idAuthentication = auth;
1539     }
1540     if (c->proxy)
1541     {
1542         yaz_oi_set_string_oid(&ireq->otherInfo, c->odr_out,
1543                               yaz_oid_userinfo_proxy, 1, c->host_port);
1544     }
1545     if (c->charset || c->lang)
1546     {
1547         Z_OtherInformation **oi;
1548         Z_OtherInformationUnit *oi_unit;
1549
1550         yaz_oi_APDU(apdu, &oi);
1551
1552         if ((oi_unit = yaz_oi_update(oi, c->odr_out, NULL, 0, 0)))
1553         {
1554             ODR_MASK_SET(ireq->options, Z_Options_negotiationModel);
1555             oi_unit->which = Z_OtherInfo_externallyDefinedInfo;
1556             oi_unit->information.externallyDefinedInfo =
1557                 yaz_set_proposal_charneg_list(c->odr_out, " ",
1558                                               c->charset, c->lang, 1);
1559         }
1560     }
1561     assert(apdu);
1562     return send_APDU(c, apdu);
1563 }
1564
1565 #if YAZ_HAVE_XML2
1566 static zoom_ret send_srw(ZOOM_connection c, Z_SRW_PDU *sr)
1567 {
1568     Z_GDU *gdu;
1569     ZOOM_Event event;
1570     const char *database =  ZOOM_options_get(c->options, "databaseName");
1571     char *fdatabase = 0;
1572
1573     if (database)
1574         fdatabase = yaz_encode_sru_dbpath_odr(c->odr_out, database);
1575     gdu = z_get_HTTP_Request_host_path(c->odr_out, c->host_port,
1576                                        fdatabase ? fdatabase : c->path);
1577
1578     if (c->sru_mode == zoom_sru_get)
1579     {
1580         yaz_sru_get_encode(gdu->u.HTTP_Request, sr, c->odr_out, c->charset);
1581     }
1582     else if (c->sru_mode == zoom_sru_post)
1583     {
1584         yaz_sru_post_encode(gdu->u.HTTP_Request, sr, c->odr_out, c->charset);
1585     }
1586     else if (c->sru_mode == zoom_sru_soap)
1587     {
1588         yaz_sru_soap_encode(gdu->u.HTTP_Request, sr, c->odr_out, c->charset);
1589     }
1590     if (!z_GDU(c->odr_out, &gdu, 0, 0))
1591         return zoom_complete;
1592     if (c->odr_print)
1593         z_GDU(c->odr_print, &gdu, 0, 0);
1594     c->buf_out = odr_getbuf(c->odr_out, &c->len_out, 0);
1595
1596     event = ZOOM_Event_create(ZOOM_EVENT_SEND_APDU);
1597     ZOOM_connection_put_event(c, event);
1598     odr_reset(c->odr_out);
1599     return do_write(c);
1600 }
1601 #endif
1602
1603 #if YAZ_HAVE_XML2
1604 static Z_SRW_PDU *ZOOM_srw_get_pdu(ZOOM_connection c, int type)
1605 {
1606     Z_SRW_PDU *sr = yaz_srw_get_pdu(c->odr_out, type, c->sru_version);
1607     sr->username = c->user;
1608     sr->password = c->password;
1609     return sr;
1610 }
1611 #endif
1612
1613 #if YAZ_HAVE_XML2
1614 static zoom_ret ZOOM_connection_srw_send_search(ZOOM_connection c)
1615 {
1616     int i;
1617     int *start, *count;
1618     ZOOM_resultset resultset = 0;
1619     Z_SRW_PDU *sr = 0;
1620     const char *option_val = 0;
1621
1622     if (c->error)                  /* don't continue on error */
1623         return zoom_complete;
1624     assert(c->tasks);
1625     switch(c->tasks->which)
1626     {
1627     case ZOOM_TASK_SEARCH:
1628         resultset = c->tasks->u.search.resultset;
1629         if (!resultset->setname)
1630             resultset->setname = xstrdup("default");
1631         ZOOM_options_set(resultset->options, "setname", resultset->setname);
1632         start = &c->tasks->u.search.start;
1633         count = &c->tasks->u.search.count;
1634         break;
1635     case ZOOM_TASK_RETRIEVE:
1636         resultset = c->tasks->u.retrieve.resultset;
1637
1638         start = &c->tasks->u.retrieve.start;
1639         count = &c->tasks->u.retrieve.count;
1640
1641         if (*start >= resultset->size)
1642             return zoom_complete;
1643         if (*start + *count > resultset->size)
1644             *count = resultset->size - *start;
1645
1646         for (i = 0; i < *count; i++)
1647         {
1648             ZOOM_record rec =
1649                 record_cache_lookup(resultset, i + *start,
1650                                     c->tasks->u.retrieve.syntax,
1651                                     c->tasks->u.retrieve.elementSetName);
1652             if (!rec)
1653                 break;
1654             else
1655             {
1656                 ZOOM_Event event = ZOOM_Event_create(ZOOM_EVENT_RECV_RECORD);
1657                 ZOOM_connection_put_event(c, event);
1658             }
1659         }
1660         *start += i;
1661         *count -= i;
1662
1663         if (*count == 0)
1664             return zoom_complete;
1665         break;
1666     default:
1667         return zoom_complete;
1668     }
1669     assert(resultset->query);
1670
1671     sr = ZOOM_srw_get_pdu(c, Z_SRW_searchRetrieve_request);
1672     if (resultset->query->z_query->which == Z_Query_type_104
1673         && resultset->query->z_query->u.type_104->which == Z_External_CQL)
1674     {
1675         sr->u.request->query_type = Z_SRW_query_type_cql;
1676         sr->u.request->query.cql =resultset->query->z_query->u.type_104->u.cql;
1677     }
1678     else if (resultset->query->z_query->which == Z_Query_type_1 &&
1679              resultset->query->z_query->u.type_1)
1680     {
1681         sr->u.request->query_type = Z_SRW_query_type_pqf;
1682         sr->u.request->query.pqf = resultset->query->query_string;
1683     }
1684     else
1685     {
1686         set_ZOOM_error(c, ZOOM_ERROR_UNSUPPORTED_QUERY, 0);
1687         return zoom_complete;
1688     }
1689     sr->u.request->startRecord = odr_intdup(c->odr_out, *start + 1);
1690     sr->u.request->maximumRecords = odr_intdup(
1691         c->odr_out, (resultset->step > 0 && resultset->step < *count) ?
1692         resultset->step : *count);
1693     sr->u.request->recordSchema = resultset->schema;
1694
1695     option_val = ZOOM_resultset_option_get(resultset, "recordPacking");
1696     if (option_val)
1697         sr->u.request->recordPacking = odr_strdup(c->odr_out, option_val);
1698
1699     option_val = ZOOM_resultset_option_get(resultset, "extraArgs");
1700     yaz_encode_sru_extra(sr, c->odr_out, option_val);
1701     return send_srw(c, sr);
1702 }
1703 #else
1704 static zoom_ret ZOOM_connection_srw_send_search(ZOOM_connection c)
1705 {
1706     return zoom_complete;
1707 }
1708 #endif
1709
1710 static zoom_ret ZOOM_connection_send_search(ZOOM_connection c)
1711 {
1712     ZOOM_resultset r;
1713     int lslb, ssub, mspn;
1714     const char *syntax;
1715     Z_APDU *apdu = zget_APDU(c->odr_out, Z_APDU_searchRequest);
1716     Z_SearchRequest *search_req = apdu->u.searchRequest;
1717     const char *elementSetName;
1718     const char *smallSetElementSetName;
1719     const char *mediumSetElementSetName;
1720     const char *facets;
1721
1722     assert(c->tasks);
1723     assert(c->tasks->which == ZOOM_TASK_SEARCH);
1724
1725     r = c->tasks->u.search.resultset;
1726
1727     yaz_log(log_details, "%p ZOOM_connection_send_search set=%p", c, r);
1728
1729     elementSetName =
1730         ZOOM_options_get(r->options, "elementSetName");
1731     smallSetElementSetName  =
1732         ZOOM_options_get(r->options, "smallSetElementSetName");
1733     mediumSetElementSetName =
1734         ZOOM_options_get(r->options, "mediumSetElementSetName");
1735
1736     if (!smallSetElementSetName)
1737         smallSetElementSetName = elementSetName;
1738
1739     if (!mediumSetElementSetName)
1740         mediumSetElementSetName = elementSetName;
1741
1742     facets = ZOOM_options_get(r->options, "facets");
1743     if (facets) {
1744         Z_FacetList *facet_list = yaz_pqf_parse_facet_list(c->odr_out, facets);
1745         if (facet_list) {
1746             Z_OtherInformation **oi;
1747             yaz_oi_APDU(apdu, &oi);
1748             if (facet_list) {
1749                 yaz_oi_set_facetlist_oid(oi, c->odr_out, yaz_oid_userinfo_facet_1, 1, facet_list);
1750             }
1751         }
1752     }
1753
1754     assert(r);
1755     assert(r->query);
1756
1757     /* prepare query for the search request */
1758     search_req->query = r->query->z_query;
1759     if (!search_req->query)
1760     {
1761         set_ZOOM_error(c, ZOOM_ERROR_INVALID_QUERY, 0);
1762         return zoom_complete;
1763     }
1764     if (r->query->z_query->which == Z_Query_type_1 ||
1765         r->query->z_query->which == Z_Query_type_101)
1766     {
1767         const char *cp = ZOOM_options_get(r->options, "rpnCharset");
1768         if (cp)
1769         {
1770             yaz_iconv_t cd = yaz_iconv_open(cp, "UTF-8");
1771             if (cd)
1772             {
1773                 int r;
1774                 search_req->query = yaz_copy_Z_Query(search_req->query,
1775                                                      c->odr_out);
1776
1777                 r = yaz_query_charset_convert_rpnquery_check(
1778                     search_req->query->u.type_1,
1779                     c->odr_out, cd);
1780                 yaz_iconv_close(cd);
1781                 if (r)
1782                 {  /* query could not be char converted */
1783                     set_ZOOM_error(c, ZOOM_ERROR_INVALID_QUERY, 0);
1784                     return zoom_complete;
1785                 }
1786             }
1787         }
1788     }
1789     search_req->databaseNames = r->databaseNames;
1790     search_req->num_databaseNames = r->num_databaseNames;
1791
1792     /* get syntax (no need to provide unless piggyback is in effect) */
1793     syntax = c->tasks->u.search.syntax;
1794
1795     lslb = ZOOM_options_get_int(r->options, "largeSetLowerBound", -1);
1796     ssub = ZOOM_options_get_int(r->options, "smallSetUpperBound", -1);
1797     mspn = ZOOM_options_get_int(r->options, "mediumSetPresentNumber", -1);
1798     if (lslb != -1 && ssub != -1 && mspn != -1)
1799     {
1800         /* So're a Z39.50 expert? Let's hope you don't do sort */
1801         *search_req->largeSetLowerBound = lslb;
1802         *search_req->smallSetUpperBound = ssub;
1803         *search_req->mediumSetPresentNumber = mspn;
1804     }
1805     else if (c->tasks->u.search.start == 0 && c->tasks->u.search.count > 0
1806              && r->piggyback && !r->r_sort_spec && !r->schema)
1807     {
1808         /* Regular piggyback - do it unless we're going to do sort */
1809         *search_req->largeSetLowerBound = 2000000000;
1810         *search_req->smallSetUpperBound = 1;
1811         *search_req->mediumSetPresentNumber =
1812             r->step>0 ? r->step : c->tasks->u.search.count;
1813     }
1814     else
1815     {
1816         /* non-piggyback. Need not provide elementsets or syntaxes .. */
1817         smallSetElementSetName = 0;
1818         mediumSetElementSetName = 0;
1819         syntax = 0;
1820     }
1821     if (smallSetElementSetName && *smallSetElementSetName)
1822     {
1823         Z_ElementSetNames *esn = (Z_ElementSetNames *)
1824             odr_malloc(c->odr_out, sizeof(*esn));
1825
1826         esn->which = Z_ElementSetNames_generic;
1827         esn->u.generic = odr_strdup(c->odr_out, smallSetElementSetName);
1828         search_req->smallSetElementSetNames = esn;
1829     }
1830     if (mediumSetElementSetName && *mediumSetElementSetName)
1831     {
1832         Z_ElementSetNames *esn =(Z_ElementSetNames *)
1833             odr_malloc(c->odr_out, sizeof(*esn));
1834
1835         esn->which = Z_ElementSetNames_generic;
1836         esn->u.generic = odr_strdup(c->odr_out, mediumSetElementSetName);
1837         search_req->mediumSetElementSetNames = esn;
1838     }
1839     if (syntax)
1840         search_req->preferredRecordSyntax =
1841             zoom_yaz_str_to_z3950oid(c, CLASS_RECSYN, syntax);
1842
1843     if (!r->setname)
1844     {
1845         if (c->support_named_resultsets)
1846         {
1847             char setname[14];
1848             int ord;
1849             /* find the lowest unused ordinal so that we re-use
1850                result sets on the server. */
1851             for (ord = 1; ; ord++)
1852             {
1853 #if ZOOM_RESULT_LISTS
1854                 ZOOM_resultsets rsp;
1855                 sprintf(setname, "%d", ord);
1856                 for (rsp = c->resultsets; rsp; rsp = rsp->next)
1857                     if (rsp->resultset->setname && !strcmp(rsp->resultset->setname, setname))
1858                         break;
1859                 if (!rsp)
1860                     break;
1861 #else
1862                 ZOOM_resultset rp;
1863                 sprintf(setname, "%d", ord);
1864                 for (rp = c->resultsets; rp; rp = rp->next)
1865                     if (rp->setname && !strcmp(rp->setname, setname))
1866                         break;
1867                 if (!rp)
1868                     break;
1869 #endif
1870
1871             }
1872             r->setname = xstrdup(setname);
1873             yaz_log(log_details, "%p ZOOM_connection_send_search: allocating "
1874                     "set %s", c, r->setname);
1875         }
1876         else
1877         {
1878             yaz_log(log_details, "%p ZOOM_connection_send_search: using "
1879                     "default set", c);
1880             r->setname = xstrdup("default");
1881         }
1882         ZOOM_options_set(r->options, "setname", r->setname);
1883     }
1884     search_req->resultSetName = odr_strdup(c->odr_out, r->setname);
1885     return send_APDU(c, apdu);
1886 }
1887
1888 static void response_default_diag(ZOOM_connection c, Z_DefaultDiagFormat *r)
1889 {
1890     char oid_name_buf[OID_STR_MAX];
1891     const char *oid_name;
1892     char *addinfo = 0;
1893
1894     oid_name = yaz_oid_to_string_buf(r->diagnosticSetId, 0, oid_name_buf);
1895     switch (r->which)
1896     {
1897     case Z_DefaultDiagFormat_v2Addinfo:
1898         addinfo = r->u.v2Addinfo;
1899         break;
1900     case Z_DefaultDiagFormat_v3Addinfo:
1901         addinfo = r->u.v3Addinfo;
1902         break;
1903     }
1904     xfree(c->addinfo);
1905     c->addinfo = 0;
1906     set_dset_error(c, *r->condition, oid_name, addinfo, 0);
1907 }
1908
1909 static void response_diag(ZOOM_connection c, Z_DiagRec *p)
1910 {
1911     if (p->which != Z_DiagRec_defaultFormat)
1912         set_ZOOM_error(c, ZOOM_ERROR_DECODE, 0);
1913     else
1914         response_default_diag(c, p->u.defaultFormat);
1915 }
1916
1917 ZOOM_API(ZOOM_record)
1918     ZOOM_record_clone(ZOOM_record srec)
1919 {
1920     char *buf;
1921     int size;
1922     ODR odr_enc;
1923     ZOOM_record nrec;
1924
1925     odr_enc = odr_createmem(ODR_ENCODE);
1926     if (!z_NamePlusRecord(odr_enc, &srec->npr, 0, 0))
1927         return 0;
1928     buf = odr_getbuf(odr_enc, &size, 0);
1929
1930     nrec = (ZOOM_record) xmalloc(sizeof(*nrec));
1931     yaz_log(log_details, "ZOOM_record create");
1932     nrec->odr = odr_createmem(ODR_DECODE);
1933 #if SHPTR
1934     nrec->record_wrbuf = 0;
1935 #else
1936     nrec->wrbuf = 0;
1937 #endif
1938     odr_setbuf(nrec->odr, buf, size, 0);
1939     z_NamePlusRecord(nrec->odr, &nrec->npr, 0, 0);
1940
1941     nrec->schema = odr_strdup_null(nrec->odr, srec->schema);
1942     nrec->diag_uri = odr_strdup_null(nrec->odr, srec->diag_uri);
1943     nrec->diag_message = odr_strdup_null(nrec->odr, srec->diag_message);
1944     nrec->diag_details = odr_strdup_null(nrec->odr, srec->diag_details);
1945     nrec->diag_set = odr_strdup_null(nrec->odr, srec->diag_set);
1946     odr_destroy(odr_enc);
1947     return nrec;
1948 }
1949
1950 ZOOM_API(ZOOM_record)
1951     ZOOM_resultset_record_immediate(ZOOM_resultset s,size_t pos)
1952 {
1953     const char *syntax =
1954         ZOOM_options_get(s->options, "preferredRecordSyntax");
1955     const char *elementSetName =
1956         ZOOM_options_get(s->options, "elementSetName");
1957
1958     return record_cache_lookup(s, pos, syntax, elementSetName);
1959 }
1960
1961 ZOOM_API(ZOOM_record)
1962     ZOOM_resultset_record(ZOOM_resultset r, size_t pos)
1963 {
1964     ZOOM_record rec = ZOOM_resultset_record_immediate(r, pos);
1965
1966     if (!rec)
1967     {
1968         /*
1969          * MIKE: I think force_sync should always be zero, but I don't
1970          * want to make this change until I get the go-ahead from
1971          * Adam, in case something depends on the old synchronous
1972          * behaviour.
1973          */
1974         int force_sync = 1;
1975         if (getenv("ZOOM_RECORD_NO_FORCE_SYNC")) force_sync = 0;
1976         ZOOM_resultset_retrieve(r, force_sync, pos, 1);
1977         rec = ZOOM_resultset_record_immediate(r, pos);
1978     }
1979     return rec;
1980 }
1981
1982 ZOOM_API(void)
1983     ZOOM_record_destroy(ZOOM_record rec)
1984 {
1985     ZOOM_record_release(rec);
1986     yaz_log(log_details, "ZOOM_record destroy");
1987     xfree(rec);
1988 }
1989
1990
1991 static yaz_iconv_t iconv_create_charset(const char *record_charset)
1992 {
1993     char to[40];
1994     char from[40];
1995     yaz_iconv_t cd = 0;
1996
1997     *from = '\0';
1998     strcpy(to, "UTF-8");
1999     if (record_charset && *record_charset)
2000     {
2001         /* Use "from,to" or just "from" */
2002         const char *cp = strchr(record_charset, ',');
2003         size_t clen = strlen(record_charset);
2004         if (cp && cp[1])
2005         {
2006             strncpy( to, cp+1, sizeof(to)-1);
2007             to[sizeof(to)-1] = '\0';
2008             clen = cp - record_charset;
2009         }
2010         if (clen > sizeof(from)-1)
2011             clen = sizeof(from)-1;
2012
2013         if (clen)
2014             strncpy(from, record_charset, clen);
2015         from[clen] = '\0';
2016     }
2017     if (*from && *to)
2018         cd = yaz_iconv_open(to, from);
2019     return cd;
2020 }
2021
2022 static const char *return_marc_record(WRBUF wrbuf,
2023                                       int marc_type,
2024                                       int *len,
2025                                       const char *buf, int sz,
2026                                       const char *record_charset)
2027 {
2028     yaz_iconv_t cd = iconv_create_charset(record_charset);
2029     yaz_marc_t mt = yaz_marc_create();
2030     const char *ret_string = 0;
2031
2032     if (cd)
2033         yaz_marc_iconv(mt, cd);
2034     yaz_marc_xml(mt, marc_type);
2035     if (yaz_marc_decode_wrbuf(mt, buf, sz, wrbuf) > 0)
2036     {
2037         if (len)
2038             *len = wrbuf_len(wrbuf);
2039         ret_string = wrbuf_cstr(wrbuf);
2040     }
2041     yaz_marc_destroy(mt);
2042     if (cd)
2043         yaz_iconv_close(cd);
2044     return ret_string;
2045 }
2046
2047 static const char *return_opac_record(WRBUF wrbuf,
2048                                       int marc_type,
2049                                       int *len,
2050                                       Z_OPACRecord *opac_rec,
2051                                       const char *record_charset)
2052 {
2053     yaz_iconv_t cd = iconv_create_charset(record_charset);
2054     yaz_marc_t mt = yaz_marc_create();
2055
2056     if (cd)
2057         yaz_marc_iconv(mt, cd);
2058     yaz_marc_xml(mt, marc_type);
2059
2060     yaz_opac_decode_wrbuf(mt, opac_rec, wrbuf);
2061     yaz_marc_destroy(mt);
2062
2063     if (cd)
2064         yaz_iconv_close(cd);
2065     if (len)
2066         *len = wrbuf_len(wrbuf);
2067     return wrbuf_cstr(wrbuf);
2068 }
2069
2070 static const char *return_string_record(WRBUF wrbuf,
2071                                         int *len,
2072                                         const char *buf, int sz,
2073                                         const char *record_charset)
2074 {
2075     yaz_iconv_t cd = iconv_create_charset(record_charset);
2076
2077     if (cd)
2078     {
2079         wrbuf_iconv_write(wrbuf, cd, buf, sz);
2080         wrbuf_iconv_reset(wrbuf, cd);
2081
2082         buf = wrbuf_cstr(wrbuf);
2083         sz = wrbuf_len(wrbuf);
2084         yaz_iconv_close(cd);
2085     }
2086     if (len)
2087         *len = sz;
2088     return buf;
2089 }
2090
2091 static const char *return_record_wrbuf(WRBUF wrbuf, int *len,
2092                                        Z_NamePlusRecord *npr,
2093                                        int marctype, const char *charset)
2094 {
2095     Z_External *r = (Z_External *) npr->u.databaseRecord;
2096     const Odr_oid *oid = r->direct_reference;
2097
2098     wrbuf_rewind(wrbuf);
2099     /* render bibliographic record .. */
2100     if (r->which == Z_External_OPAC)
2101     {
2102         return return_opac_record(wrbuf, marctype, len,
2103                                   r->u.opac, charset);
2104     }
2105     if (r->which == Z_External_sutrs)
2106         return return_string_record(wrbuf, len,
2107                                     (char*) r->u.sutrs->buf,
2108                                     r->u.sutrs->len,
2109                                     charset);
2110     else if (r->which == Z_External_octet)
2111     {
2112         if (yaz_oid_is_iso2709(oid))
2113         {
2114             const char *ret_buf = return_marc_record(
2115                 wrbuf, marctype, len,
2116                 (const char *) r->u.octet_aligned->buf,
2117                 r->u.octet_aligned->len,
2118                 charset);
2119             if (ret_buf)
2120                 return ret_buf;
2121             /* bad ISO2709. Return fail unless raw (ISO2709) is wanted */
2122             if (marctype != YAZ_MARC_ISO2709)
2123                 return 0;
2124         }
2125         return return_string_record(wrbuf, len,
2126                                     (const char *) r->u.octet_aligned->buf,
2127                                     r->u.octet_aligned->len,
2128                                     charset);
2129     }
2130     else if (r->which == Z_External_grs1)
2131     {
2132         yaz_display_grs1(wrbuf, r->u.grs1, 0);
2133         return return_string_record(wrbuf, len,
2134                                     wrbuf_buf(wrbuf),
2135                                     wrbuf_len(wrbuf),
2136                                     charset);
2137     }
2138     return 0;
2139 }
2140
2141 ZOOM_API(int)
2142     ZOOM_record_error(ZOOM_record rec, const char **cp,
2143                       const char **addinfo, const char **diagset)
2144 {
2145     Z_NamePlusRecord *npr;
2146
2147     if (!rec)
2148         return 0;
2149
2150     npr = rec->npr;
2151     if (rec->diag_uri)
2152     {
2153         if (cp)
2154             *cp = rec->diag_message;
2155         if (addinfo)
2156             *addinfo = rec->diag_details;
2157         if (diagset)
2158             *diagset = rec->diag_set;
2159         return uri_to_code(rec->diag_uri);
2160     }
2161     if (npr && npr->which == Z_NamePlusRecord_surrogateDiagnostic)
2162     {
2163         Z_DiagRec *diag_rec = npr->u.surrogateDiagnostic;
2164         int error = YAZ_BIB1_UNSPECIFIED_ERROR;
2165         const char *add = 0;
2166
2167         if (diag_rec->which == Z_DiagRec_defaultFormat)
2168         {
2169             Z_DefaultDiagFormat *ddf = diag_rec->u.defaultFormat;
2170             oid_class oclass;
2171
2172             error = *ddf->condition;
2173             switch (ddf->which)
2174             {
2175             case Z_DefaultDiagFormat_v2Addinfo:
2176                 add = ddf->u.v2Addinfo;
2177                 break;
2178             case Z_DefaultDiagFormat_v3Addinfo:
2179                 add = ddf->u.v3Addinfo;
2180                 break;
2181             }
2182             if (diagset)
2183                 *diagset =
2184                     yaz_oid_to_string(yaz_oid_std(),
2185                                       ddf->diagnosticSetId, &oclass);
2186         }
2187         else
2188         {
2189             if (diagset)
2190                 *diagset = "Bib-1";
2191         }
2192         if (addinfo)
2193             *addinfo = add ? add : "";
2194         if (cp)
2195             *cp = diagbib1_str(error);
2196         return error;
2197     }
2198     return 0;
2199 }
2200
2201 static const char *get_record_format(WRBUF wrbuf, int *len,
2202                                      Z_NamePlusRecord *npr,
2203                                      int marctype, const char *charset,
2204                                      const char *format)
2205 {
2206     const char *res = return_record_wrbuf(wrbuf, len, npr, marctype, charset);
2207 #if YAZ_HAVE_XML2
2208     if (*format == '1' && len)
2209     {
2210         /* try to XML format res */
2211         xmlDocPtr doc;
2212         xmlKeepBlanksDefault(0); /* get get xmlDocFormatMemory to work! */
2213         doc = xmlParseMemory(res, *len);
2214         if (doc)
2215         {
2216             xmlChar *xml_mem;
2217             int xml_size;
2218             xmlDocDumpFormatMemory(doc, &xml_mem, &xml_size, 1);
2219             wrbuf_rewind(wrbuf);
2220             wrbuf_write(wrbuf, (const char *) xml_mem, xml_size);
2221             xmlFree(xml_mem);
2222             xmlFreeDoc(doc);
2223             res = wrbuf_cstr(wrbuf);
2224             *len = wrbuf_len(wrbuf);
2225         }
2226     }
2227 #endif
2228     return res;
2229 }
2230
2231
2232 static const char *npr_format(Z_NamePlusRecord *npr, const char *schema,
2233                               WRBUF wrbuf,
2234                               const char *type_spec, int *len)
2235 {
2236     size_t i;
2237     char type[40];
2238     char charset[40];
2239     char format[3];
2240     const char *cp = type_spec;
2241
2242     for (i = 0; cp[i] && cp[i] != ';' && cp[i] != ' ' && i < sizeof(type)-1;
2243          i++)
2244         type[i] = cp[i];
2245     type[i] = '\0';
2246     charset[0] = '\0';
2247     format[0] = '\0';
2248     while (1)
2249     {
2250         while (cp[i] == ' ')
2251             i++;
2252         if (cp[i] != ';')
2253             break;
2254         i++;
2255         while (cp[i] == ' ')
2256             i++;
2257         if (!strncmp(cp + i, "charset=", 8))
2258         {
2259             size_t j = 0;
2260             i = i + 8; /* skip charset= */
2261             for (j = 0; cp[i] && cp[i] != ';' && cp[i] != ' '; i++)
2262             {
2263                 if (j < sizeof(charset)-1)
2264                     charset[j++] = cp[i];
2265             }
2266             charset[j] = '\0';
2267         }
2268         else if (!strncmp(cp + i, "format=", 7))
2269         {
2270             size_t j = 0;
2271             i = i + 7;
2272             for (j = 0; cp[i] && cp[i] != ';' && cp[i] != ' '; i++)
2273             {
2274                 if (j < sizeof(format)-1)
2275                     format[j++] = cp[i];
2276             }
2277             format[j] = '\0';
2278         }
2279     }
2280     if (!strcmp(type, "database"))
2281     {
2282         if (len)
2283             *len = (npr->databaseName ? strlen(npr->databaseName) : 0);
2284         return npr->databaseName;
2285     }
2286     else if (!strcmp(type, "schema"))
2287     {
2288         if (len)
2289             *len = schema ? strlen(schema) : 0;
2290         return schema;
2291     }
2292     else if (!strcmp(type, "syntax"))
2293     {
2294         const char *desc = 0;
2295         if (npr->which == Z_NamePlusRecord_databaseRecord)
2296         {
2297             Z_External *r = (Z_External *) npr->u.databaseRecord;
2298             desc = yaz_oid_to_string(yaz_oid_std(), r->direct_reference, 0);
2299         }
2300         if (!desc)
2301             desc = "none";
2302         if (len)
2303             *len = strlen(desc);
2304         return desc;
2305     }
2306     if (npr->which != Z_NamePlusRecord_databaseRecord)
2307         return 0;
2308
2309     /* from now on - we have a database record .. */
2310     if (!strcmp(type, "render"))
2311     {
2312         return get_record_format(wrbuf, len, npr, YAZ_MARC_LINE, charset, format);
2313     }
2314     else if (!strcmp(type, "xml"))
2315     {
2316         return get_record_format(wrbuf, len, npr, YAZ_MARC_MARCXML, charset,
2317                                  format);
2318     }
2319     else if (!strcmp(type, "txml"))
2320     {
2321         return get_record_format(wrbuf, len, npr, YAZ_MARC_TURBOMARC, charset,
2322                                  format);
2323     }
2324     else if (!strcmp(type, "raw"))
2325     {
2326         return get_record_format(wrbuf, len, npr, YAZ_MARC_ISO2709, charset,
2327             format);
2328     }
2329     else if (!strcmp(type, "ext"))
2330     {
2331         if (len) *len = -1;
2332         return (const char *) npr->u.databaseRecord;
2333     }
2334     else if (!strcmp(type, "opac"))
2335     {
2336         if (npr->u.databaseRecord->which == Z_External_OPAC)
2337             return get_record_format(wrbuf, len, npr, YAZ_MARC_MARCXML, charset,
2338                                      format);
2339     }
2340     return 0;
2341 }
2342
2343 ZOOM_API(const char *)
2344     ZOOM_record_get(ZOOM_record rec, const char *type_spec, int *len)
2345 {
2346     WRBUF wrbuf;
2347
2348     if (len)
2349         *len = 0; /* default return */
2350
2351     if (!rec || !rec->npr)
2352         return 0;
2353
2354 #if SHPTR
2355     if (!rec->record_wrbuf)
2356     {
2357         WRBUF w = wrbuf_alloc();
2358         YAZ_SHPTR_INIT(rec->record_wrbuf, w);
2359     }
2360     wrbuf = rec->record_wrbuf->ptr;
2361 #else
2362     if (!rec->wrbuf)
2363         rec->wrbuf = wrbuf_alloc();
2364     wrbuf = rec->wrbuf;
2365 #endif
2366     return npr_format(rec->npr, rec->schema, wrbuf, type_spec, len);
2367 }
2368
2369 static int strcmp_null(const char *v1, const char *v2)
2370 {
2371     if (!v1 && !v2)
2372         return 0;
2373     if (!v1 || !v2)
2374         return -1;
2375     return strcmp(v1, v2);
2376 }
2377
2378 static size_t record_hash(int pos)
2379 {
2380     if (pos < 0)
2381         pos = 0;
2382     return pos % RECORD_HASH_SIZE;
2383 }
2384
2385 static void record_cache_add(ZOOM_resultset r, Z_NamePlusRecord *npr,
2386                              int pos,
2387                              const char *syntax, const char *elementSetName,
2388                              const char *schema,
2389                              Z_SRW_diagnostic *diag)
2390 {
2391     ZOOM_record_cache rc = 0;
2392
2393     ZOOM_Event event = ZOOM_Event_create(ZOOM_EVENT_RECV_RECORD);
2394     ZOOM_connection_put_event(r->connection, event);
2395
2396     for (rc = r->record_hash[record_hash(pos)]; rc; rc = rc->next)
2397     {
2398         if (pos == rc->pos
2399             && strcmp_null(r->schema, rc->schema) == 0
2400             && strcmp_null(elementSetName,rc->elementSetName) == 0
2401             && strcmp_null(syntax, rc->syntax) == 0)
2402             break;
2403     }
2404     if (!rc)
2405     {
2406         rc = (ZOOM_record_cache) odr_malloc(r->odr, sizeof(*rc));
2407         rc->rec.odr = 0;
2408 #if SHPTR
2409         YAZ_SHPTR_INC(r->record_wrbuf);
2410         rc->rec.record_wrbuf = r->record_wrbuf;
2411 #else
2412         rc->rec.wrbuf = 0;
2413 #endif
2414         rc->elementSetName = odr_strdup_null(r->odr, elementSetName);
2415
2416         rc->syntax = odr_strdup_null(r->odr, syntax);
2417
2418         rc->schema = odr_strdup_null(r->odr, r->schema);
2419
2420         rc->pos = pos;
2421         rc->next = r->record_hash[record_hash(pos)];
2422         r->record_hash[record_hash(pos)] = rc;
2423     }
2424     rc->rec.npr = npr;
2425     rc->rec.schema = odr_strdup_null(r->odr, schema);
2426     rc->rec.diag_set = 0;
2427     rc->rec.diag_uri = 0;
2428     rc->rec.diag_message = 0;
2429     rc->rec.diag_details = 0;
2430     if (diag)
2431     {
2432         if (diag->uri)
2433         {
2434             char *cp;
2435             rc->rec.diag_set = odr_strdup(r->odr, diag->uri);
2436             if ((cp = strrchr(rc->rec.diag_set, '/')))
2437                 *cp = '\0';
2438             rc->rec.diag_uri = odr_strdup(r->odr, diag->uri);
2439         }
2440         rc->rec.diag_message = odr_strdup_null(r->odr, diag->message);
2441         rc->rec.diag_details = odr_strdup_null(r->odr, diag->details);
2442     }
2443 }
2444
2445 static ZOOM_record record_cache_lookup(ZOOM_resultset r, int pos,
2446                                        const char *syntax,
2447                                        const char *elementSetName)
2448 {
2449     ZOOM_record_cache rc;
2450
2451     for (rc = r->record_hash[record_hash(pos)]; rc; rc = rc->next)
2452     {
2453         if (pos == rc->pos)
2454         {
2455             if (strcmp_null(r->schema, rc->schema))
2456                 continue;
2457             if (strcmp_null(elementSetName,rc->elementSetName))
2458                 continue;
2459             if (strcmp_null(syntax, rc->syntax))
2460                 continue;
2461             return &rc->rec;
2462         }
2463     }
2464     return 0;
2465 }
2466
2467 static void handle_records(ZOOM_connection c, Z_Records *sr,
2468                            int present_phase)
2469 {
2470     ZOOM_resultset resultset;
2471     int *start, *count;
2472     const char *syntax = 0, *elementSetName = 0;
2473
2474     if (!c->tasks)
2475         return ;
2476     switch (c->tasks->which)
2477     {
2478     case ZOOM_TASK_SEARCH:
2479         resultset = c->tasks->u.search.resultset;
2480         start = &c->tasks->u.search.start;
2481         count = &c->tasks->u.search.count;
2482         syntax = c->tasks->u.search.syntax;
2483         elementSetName = c->tasks->u.search.elementSetName;
2484         break;
2485     case ZOOM_TASK_RETRIEVE:
2486         resultset = c->tasks->u.retrieve.resultset;
2487         start = &c->tasks->u.retrieve.start;
2488         count = &c->tasks->u.retrieve.count;
2489         syntax = c->tasks->u.retrieve.syntax;
2490         elementSetName = c->tasks->u.retrieve.elementSetName;
2491         break;
2492     default:
2493         return;
2494     }
2495     if (sr && sr->which == Z_Records_NSD)
2496         response_default_diag(c, sr->u.nonSurrogateDiagnostic);
2497     else if (sr && sr->which == Z_Records_multipleNSD)
2498     {
2499         if (sr->u.multipleNonSurDiagnostics->num_diagRecs >= 1)
2500             response_diag(c, sr->u.multipleNonSurDiagnostics->diagRecs[0]);
2501         else
2502             set_ZOOM_error(c, ZOOM_ERROR_DECODE, 0);
2503     }
2504     else
2505     {
2506         if (*count + *start > resultset->size)
2507             *count = resultset->size - *start;
2508         if (*count < 0)
2509             *count = 0;
2510         if (sr && sr->which == Z_Records_DBOSD)
2511         {
2512             int i;
2513             NMEM nmem = odr_extract_mem(c->odr_in);
2514             Z_NamePlusRecordList *p =
2515                 sr->u.databaseOrSurDiagnostics;
2516             for (i = 0; i<p->num_records; i++)
2517             {
2518                 record_cache_add(resultset, p->records[i], i + *start,
2519                                  syntax, elementSetName,
2520                                  elementSetName, 0);
2521             }
2522             *count -= i;
2523             if (*count < 0)
2524                 *count = 0;
2525             *start += i;
2526             yaz_log(log_details,
2527                     "handle_records resultset=%p start=%d count=%d",
2528                     resultset, *start, *count);
2529
2530             /* transfer our response to search_nmem .. we need it later */
2531             nmem_transfer(odr_getmem(resultset->odr), nmem);
2532             nmem_destroy(nmem);
2533             if (present_phase && p->num_records == 0)
2534             {
2535                 /* present response and we didn't get any records! */
2536                 Z_NamePlusRecord *myrec =
2537                     zget_surrogateDiagRec(
2538                         resultset->odr, 0,
2539                         YAZ_BIB1_SYSTEM_ERROR_IN_PRESENTING_RECORDS,
2540                         "ZOOM C generated. Present phase and no records");
2541                 record_cache_add(resultset, myrec, *start,
2542                                  syntax, elementSetName, 0, 0);
2543             }
2544         }
2545         else if (present_phase)
2546         {
2547             /* present response and we didn't get any records! */
2548             Z_NamePlusRecord *myrec =
2549                 zget_surrogateDiagRec(
2550                     resultset->odr, 0,
2551                     YAZ_BIB1_SYSTEM_ERROR_IN_PRESENTING_RECORDS,
2552                     "ZOOM C generated: Present response and no records");
2553             record_cache_add(resultset, myrec, *start, syntax, elementSetName,
2554                              0, 0);
2555         }
2556     }
2557 }
2558
2559 static void handle_present_response(ZOOM_connection c, Z_PresentResponse *pr)
2560 {
2561     handle_records(c, pr->records, 1);
2562 }
2563
2564 static void handle_queryExpressionTerm(ZOOM_options opt, const char *name,
2565                                        Z_Term *term)
2566 {
2567     switch (term->which)
2568     {
2569     case Z_Term_general:
2570         ZOOM_options_setl(opt, name,
2571                           (const char *)(term->u.general->buf),
2572                           term->u.general->len);
2573         break;
2574     case Z_Term_characterString:
2575         ZOOM_options_set(opt, name, term->u.characterString);
2576         break;
2577     case Z_Term_numeric:
2578         ZOOM_options_set_int(opt, name, *term->u.numeric);
2579         break;
2580     }
2581 }
2582
2583 static void handle_queryExpression(ZOOM_options opt, const char *name,
2584                                    Z_QueryExpression *exp)
2585 {
2586     char opt_name[80];
2587
2588     switch (exp->which)
2589     {
2590     case Z_QueryExpression_term:
2591         if (exp->u.term && exp->u.term->queryTerm)
2592         {
2593             sprintf(opt_name, "%s.term", name);
2594             handle_queryExpressionTerm(opt, opt_name, exp->u.term->queryTerm);
2595         }
2596         break;
2597     case Z_QueryExpression_query:
2598         break;
2599     }
2600 }
2601
2602 static void handle_search_result(ZOOM_connection c, ZOOM_resultset resultset,
2603                                 Z_OtherInformation *o)
2604 {
2605     int i;
2606     for (i = 0; o && i < o->num_elements; i++)
2607     {
2608         if (o->list[i]->which == Z_OtherInfo_externallyDefinedInfo)
2609         {
2610             Z_External *ext = o->list[i]->information.externallyDefinedInfo;
2611
2612             if (ext->which == Z_External_searchResult1)
2613             {
2614                 int j;
2615                 Z_SearchInfoReport *sr = ext->u.searchResult1;
2616
2617                 if (sr->num)
2618                     ZOOM_options_set_int(
2619                         resultset->options, "searchresult.size", sr->num);
2620
2621                 for (j = 0; j < sr->num; j++)
2622                 {
2623                     Z_SearchInfoReport_s *ent =
2624                         ext->u.searchResult1->elements[j];
2625                     char pref[80];
2626
2627                     sprintf(pref, "searchresult.%d", j);
2628
2629                     if (ent->subqueryId)
2630                     {
2631                         char opt_name[80];
2632                         sprintf(opt_name, "%s.id", pref);
2633                         ZOOM_options_set(resultset->options, opt_name,
2634                                          ent->subqueryId);
2635                     }
2636                     if (ent->subqueryExpression)
2637                     {
2638                         char opt_name[80];
2639                         sprintf(opt_name, "%s.subquery", pref);
2640                         handle_queryExpression(resultset->options, opt_name,
2641                                                ent->subqueryExpression);
2642                     }
2643                     if (ent->subqueryInterpretation)
2644                     {
2645                         char opt_name[80];
2646                         sprintf(opt_name, "%s.interpretation", pref);
2647                         handle_queryExpression(resultset->options, opt_name,
2648                                                ent->subqueryInterpretation);
2649                     }
2650                     if (ent->subqueryRecommendation)
2651                     {
2652                         char opt_name[80];
2653                         sprintf(opt_name, "%s.recommendation", pref);
2654                         handle_queryExpression(resultset->options, opt_name,
2655                                                ent->subqueryRecommendation);
2656                     }
2657                     if (ent->subqueryCount)
2658                     {
2659                         char opt_name[80];
2660                         sprintf(opt_name, "%s.count", pref);
2661                         ZOOM_options_set_int(resultset->options, opt_name,
2662                                              *ent->subqueryCount);
2663                     }
2664                 }
2665             }
2666         }
2667     }
2668 }
2669
2670 static char *get_term_cstr(ODR odr, Z_Term *term) {
2671
2672     switch (term->which) {
2673     case Z_Term_general:
2674             return odr_strdupn(odr, (const char *) term->u.general->buf, (size_t) term->u.general->len);
2675         break;
2676     case Z_Term_characterString:
2677         return odr_strdup(odr, term->u.characterString);
2678     }
2679     return 0;
2680 }
2681
2682 static ZOOM_facet_field get_zoom_facet_field(ODR odr, Z_FacetField *facet) {
2683     int term_index;
2684     struct attrvalues attr_values;
2685     ZOOM_facet_field facet_field = odr_malloc(odr, sizeof(*facet_field));
2686     memset(&attr_values, 0, sizeof(attr_values));
2687     facetattrs(facet->attributes, &attr_values);
2688     facet_field->facet_name = odr_strdup(odr, attr_values.useattr);
2689     facet_field->num_terms = facet->num_terms;
2690     facet_field->facet_terms = odr_malloc(odr, facet_field->num_terms * sizeof(*facet_field->facet_terms));
2691     for (term_index = 0 ; term_index < facet->num_terms; term_index++) {
2692         Z_FacetTerm *facetTerm = facet->terms[term_index];
2693         facet_field->facet_terms[term_index].frequency = *facetTerm->count;
2694         facet_field->facet_terms[term_index].term = get_term_cstr(odr, facetTerm->term);
2695     }
2696     return facet_field;
2697 }
2698
2699 static void handle_facet_result(ZOOM_connection c, ZOOM_resultset r,
2700                                 Z_OtherInformation *o)
2701 {
2702     int i;
2703     for (i = 0; o && i < o->num_elements; i++)
2704     {
2705         if (o->list[i]->which == Z_OtherInfo_externallyDefinedInfo)
2706         {
2707             Z_External *ext = o->list[i]->information.externallyDefinedInfo;
2708             if (ext->which == Z_External_userFacets)
2709             {
2710                 int j;
2711                 Z_FacetList *fl = ext->u.facetList;
2712                 r->num_facets   = fl->num;
2713                 r->facets       =  odr_malloc(r->odr, r->num_facets * sizeof(*r->facets));
2714                 r->facets_names =  odr_malloc(r->odr, r->num_facets * sizeof(*r->facets_names));
2715                 for (j = 0; j < fl->num; j++)
2716                 {
2717                     r->facets[j] = get_zoom_facet_field(r->odr, fl->elements[j]);
2718                     r->facets_names[j] = (char *) ZOOM_facet_field_name(r->facets[j]);
2719                 }
2720             }
2721         }
2722     }
2723 }
2724
2725
2726 static void handle_search_response(ZOOM_connection c, Z_SearchResponse *sr)
2727 {
2728     ZOOM_resultset resultset;
2729     ZOOM_Event event;
2730
2731     if (!c->tasks || c->tasks->which != ZOOM_TASK_SEARCH)
2732         return ;
2733
2734     event = ZOOM_Event_create(ZOOM_EVENT_RECV_SEARCH);
2735     ZOOM_connection_put_event(c, event);
2736
2737     resultset = c->tasks->u.search.resultset;
2738
2739     if (sr->resultSetStatus)
2740     {
2741         ZOOM_options_set_int(resultset->options, "resultSetStatus",
2742                              *sr->resultSetStatus);
2743     }
2744     if (sr->presentStatus)
2745     {
2746         ZOOM_options_set_int(resultset->options, "presentStatus",
2747                              *sr->presentStatus);
2748     }
2749     handle_search_result(c, resultset, sr->additionalSearchInfo);
2750
2751     handle_facet_result(c, resultset, sr->additionalSearchInfo);
2752
2753     resultset->size = *sr->resultCount;
2754     handle_records(c, sr->records, 0);
2755 }
2756
2757 static void sort_response(ZOOM_connection c, Z_SortResponse *res)
2758 {
2759     if (res->diagnostics && res->num_diagnostics > 0)
2760         response_diag(c, res->diagnostics[0]);
2761 }
2762
2763 static int scan_response(ZOOM_connection c, Z_ScanResponse *res)
2764 {
2765     NMEM nmem = odr_extract_mem(c->odr_in);
2766     ZOOM_scanset scan;
2767
2768     if (!c->tasks || c->tasks->which != ZOOM_TASK_SCAN)
2769         return 0;
2770     scan = c->tasks->u.scan.scan;
2771
2772     if (res->entries && res->entries->nonsurrogateDiagnostics)
2773         response_diag(c, res->entries->nonsurrogateDiagnostics[0]);
2774     scan->scan_response = res;
2775     scan->srw_scan_response = 0;
2776     nmem_transfer(odr_getmem(scan->odr), nmem);
2777     if (res->stepSize)
2778         ZOOM_options_set_int(scan->options, "stepSize", *res->stepSize);
2779     if (res->positionOfTerm)
2780         ZOOM_options_set_int(scan->options, "position", *res->positionOfTerm);
2781     if (res->scanStatus)
2782         ZOOM_options_set_int(scan->options, "scanStatus", *res->scanStatus);
2783     if (res->numberOfEntriesReturned)
2784         ZOOM_options_set_int(scan->options, "number",
2785                              *res->numberOfEntriesReturned);
2786     nmem_destroy(nmem);
2787     return 1;
2788 }
2789
2790 static zoom_ret send_sort(ZOOM_connection c,
2791                           ZOOM_resultset resultset)
2792 {
2793     if (c->error)
2794         resultset->r_sort_spec = 0;
2795     if (resultset->r_sort_spec)
2796     {
2797         Z_APDU *apdu = zget_APDU(c->odr_out, Z_APDU_sortRequest);
2798         Z_SortRequest *req = apdu->u.sortRequest;
2799
2800         req->num_inputResultSetNames = 1;
2801         req->inputResultSetNames = (Z_InternationalString **)
2802             odr_malloc(c->odr_out, sizeof(*req->inputResultSetNames));
2803         req->inputResultSetNames[0] =
2804             odr_strdup(c->odr_out, resultset->setname);
2805         req->sortedResultSetName = odr_strdup(c->odr_out, resultset->setname);
2806         req->sortSequence = resultset->r_sort_spec;
2807         resultset->r_sort_spec = 0;
2808         return send_APDU(c, apdu);
2809     }
2810     return zoom_complete;
2811 }
2812
2813 static zoom_ret send_present(ZOOM_connection c)
2814 {
2815     Z_APDU *apdu = 0;
2816     Z_PresentRequest *req = 0;
2817     int i = 0;
2818     const char *syntax = 0;
2819     const char *elementSetName = 0;
2820     ZOOM_resultset  resultset;
2821     int *start, *count;
2822
2823     if (!c->tasks)
2824     {
2825         yaz_log(log_details, "%p send_present no tasks", c);
2826         return zoom_complete;
2827     }
2828
2829     switch (c->tasks->which)
2830     {
2831     case ZOOM_TASK_SEARCH:
2832         resultset = c->tasks->u.search.resultset;
2833         start = &c->tasks->u.search.start;
2834         count = &c->tasks->u.search.count;
2835         syntax = c->tasks->u.search.syntax;
2836         elementSetName = c->tasks->u.search.elementSetName;
2837         break;
2838     case ZOOM_TASK_RETRIEVE:
2839         resultset = c->tasks->u.retrieve.resultset;
2840         start = &c->tasks->u.retrieve.start;
2841         count = &c->tasks->u.retrieve.count;
2842         syntax = c->tasks->u.retrieve.syntax;
2843         elementSetName = c->tasks->u.retrieve.elementSetName;
2844         break;
2845     default:
2846         return zoom_complete;
2847     }
2848     yaz_log(log_details, "%p send_present start=%d count=%d",
2849             c, *start, *count);
2850
2851     if (*start < 0 || *count < 0 || *start + *count > resultset->size)
2852     {
2853         set_dset_error(c, YAZ_BIB1_PRESENT_REQUEST_OUT_OF_RANGE, "Bib-1",
2854                        "", 0);
2855     }
2856     if (c->error)                  /* don't continue on error */
2857         return zoom_complete;
2858     yaz_log(log_details, "send_present resultset=%p start=%d count=%d",
2859             resultset, *start, *count);
2860
2861     for (i = 0; i < *count; i++)
2862     {
2863         ZOOM_record rec =
2864             record_cache_lookup(resultset, i + *start, syntax, elementSetName);
2865         if (!rec)
2866             break;
2867         else
2868         {
2869             ZOOM_Event event = ZOOM_Event_create(ZOOM_EVENT_RECV_RECORD);
2870             ZOOM_connection_put_event(c, event);
2871         }
2872     }
2873     *start += i;
2874     *count -= i;
2875
2876     if (*count == 0)
2877     {
2878         yaz_log(log_details, "%p send_present skip=%d no more to fetch", c, i);
2879         return zoom_complete;
2880     }
2881
2882     apdu = zget_APDU(c->odr_out, Z_APDU_presentRequest);
2883     req = apdu->u.presentRequest;
2884
2885     if (i)
2886         yaz_log(log_details, "%p send_present skip=%d", c, i);
2887
2888     *req->resultSetStartPoint = *start + 1;
2889
2890     if (resultset->step > 0 && resultset->step < *count)
2891         *req->numberOfRecordsRequested = resultset->step;
2892     else
2893         *req->numberOfRecordsRequested = *count;
2894
2895     if (*req->numberOfRecordsRequested + *start > resultset->size)
2896         *req->numberOfRecordsRequested = resultset->size - *start;
2897     assert(*req->numberOfRecordsRequested > 0);
2898
2899     if (syntax && *syntax)
2900         req->preferredRecordSyntax =
2901             zoom_yaz_str_to_z3950oid(c, CLASS_RECSYN, syntax);
2902
2903     if (resultset->schema && *resultset->schema)
2904     {
2905         Z_RecordComposition *compo = (Z_RecordComposition *)
2906             odr_malloc(c->odr_out, sizeof(*compo));
2907
2908         req->recordComposition = compo;
2909         compo->which = Z_RecordComp_complex;
2910         compo->u.complex = (Z_CompSpec *)
2911             odr_malloc(c->odr_out, sizeof(*compo->u.complex));
2912         compo->u.complex->selectAlternativeSyntax = (bool_t *)
2913             odr_malloc(c->odr_out, sizeof(bool_t));
2914         *compo->u.complex->selectAlternativeSyntax = 0;
2915
2916         compo->u.complex->generic = (Z_Specification *)
2917             odr_malloc(c->odr_out, sizeof(*compo->u.complex->generic));
2918
2919         compo->u.complex->generic->which = Z_Schema_oid;
2920         compo->u.complex->generic->schema.oid = (Odr_oid *)
2921             zoom_yaz_str_to_z3950oid (c, CLASS_SCHEMA, resultset->schema);
2922
2923         if (!compo->u.complex->generic->schema.oid)
2924         {
2925             /* OID wasn't a schema! Try record syntax instead. */
2926
2927             compo->u.complex->generic->schema.oid = (Odr_oid *)
2928                 zoom_yaz_str_to_z3950oid (c, CLASS_RECSYN, resultset->schema);
2929         }
2930         if (elementSetName && *elementSetName)
2931         {
2932             compo->u.complex->generic->elementSpec = (Z_ElementSpec *)
2933                 odr_malloc(c->odr_out, sizeof(Z_ElementSpec));
2934             compo->u.complex->generic->elementSpec->which =
2935                 Z_ElementSpec_elementSetName;
2936             compo->u.complex->generic->elementSpec->u.elementSetName =
2937                 odr_strdup(c->odr_out, elementSetName);
2938         }
2939         else
2940             compo->u.complex->generic->elementSpec = 0;
2941         compo->u.complex->num_dbSpecific = 0;
2942         compo->u.complex->dbSpecific = 0;
2943         compo->u.complex->num_recordSyntax = 0;
2944         compo->u.complex->recordSyntax = 0;
2945     }
2946     else if (elementSetName && *elementSetName)
2947     {
2948         Z_ElementSetNames *esn = (Z_ElementSetNames *)
2949             odr_malloc(c->odr_out, sizeof(*esn));
2950         Z_RecordComposition *compo = (Z_RecordComposition *)
2951             odr_malloc(c->odr_out, sizeof(*compo));
2952
2953         esn->which = Z_ElementSetNames_generic;
2954         esn->u.generic = odr_strdup(c->odr_out, elementSetName);
2955         compo->which = Z_RecordComp_simple;
2956         compo->u.simple = esn;
2957         req->recordComposition = compo;
2958     }
2959     req->resultSetId = odr_strdup(c->odr_out, resultset->setname);
2960     return send_APDU(c, apdu);
2961 }
2962
2963 ZOOM_API(ZOOM_scanset)
2964     ZOOM_connection_scan(ZOOM_connection c, const char *start)
2965 {
2966     ZOOM_scanset s;
2967     ZOOM_query q = ZOOM_query_create();
2968
2969     ZOOM_query_prefix(q, start);
2970
2971     s = ZOOM_connection_scan1(c, q);
2972     ZOOM_query_destroy(q);
2973     return s;
2974
2975 }
2976
2977 ZOOM_API(ZOOM_scanset)
2978     ZOOM_connection_scan1(ZOOM_connection c, ZOOM_query q)
2979 {
2980     ZOOM_scanset scan = 0;
2981
2982     if (!q->z_query)
2983         return 0;
2984     scan = (ZOOM_scanset) xmalloc(sizeof(*scan));
2985     scan->connection = c;
2986     scan->odr = odr_createmem(ODR_DECODE);
2987     scan->options = ZOOM_options_create_with_parent(c->options);
2988     scan->refcount = 1;
2989     scan->scan_response = 0;
2990     scan->srw_scan_response = 0;
2991
2992     scan->query = q;
2993     (q->refcount)++;
2994     scan->databaseNames = set_DatabaseNames(c, c->options,
2995                                             &scan->num_databaseNames,
2996                                             scan->odr);
2997
2998     if (1)
2999     {
3000         ZOOM_task task = ZOOM_connection_add_task(c, ZOOM_TASK_SCAN);
3001         task->u.scan.scan = scan;
3002
3003         (scan->refcount)++;
3004         if (!c->async)
3005         {
3006             while (ZOOM_event(1, &c))
3007                 ;
3008         }
3009     }
3010     return scan;
3011 }
3012
3013 ZOOM_API(void)
3014     ZOOM_scanset_destroy(ZOOM_scanset scan)
3015 {
3016     if (!scan)
3017         return;
3018     (scan->refcount)--;
3019     if (scan->refcount == 0)
3020     {
3021         ZOOM_query_destroy(scan->query);
3022
3023         odr_destroy(scan->odr);
3024
3025         ZOOM_options_destroy(scan->options);
3026         xfree(scan);
3027     }
3028 }
3029
3030 static zoom_ret send_package(ZOOM_connection c)
3031 {
3032     ZOOM_Event event;
3033
3034     yaz_log(log_details, "%p send_package", c);
3035     if (!c->tasks)
3036         return zoom_complete;
3037     assert (c->tasks->which == ZOOM_TASK_PACKAGE);
3038
3039     event = ZOOM_Event_create(ZOOM_EVENT_SEND_APDU);
3040     ZOOM_connection_put_event(c, event);
3041
3042     c->buf_out = c->tasks->u.package->buf_out;
3043     c->len_out = c->tasks->u.package->len_out;
3044
3045     return do_write(c);
3046 }
3047
3048 static zoom_ret ZOOM_connection_send_scan(ZOOM_connection c)
3049 {
3050     ZOOM_scanset scan;
3051     Z_APDU *apdu = zget_APDU(c->odr_out, Z_APDU_scanRequest);
3052     Z_ScanRequest *req = apdu->u.scanRequest;
3053
3054     yaz_log(log_details, "%p send_scan", c);
3055     if (!c->tasks)
3056         return zoom_complete;
3057     assert (c->tasks->which == ZOOM_TASK_SCAN);
3058     scan = c->tasks->u.scan.scan;
3059
3060     /* Z39.50 scan can only carry RPN */
3061     if (scan->query->z_query->which == Z_Query_type_1 ||
3062         scan->query->z_query->which == Z_Query_type_101)
3063     {
3064         Z_RPNQuery *rpn = scan->query->z_query->u.type_1;
3065         const char *cp = ZOOM_options_get(scan->options, "rpnCharset");
3066         if (cp)
3067         {
3068             yaz_iconv_t cd = yaz_iconv_open(cp, "UTF-8");
3069             if (cd)
3070             {
3071                 rpn = yaz_copy_z_RPNQuery(rpn, c->odr_out);
3072
3073                 yaz_query_charset_convert_rpnquery(
3074                     rpn, c->odr_out, cd);
3075                 yaz_iconv_close(cd);
3076             }
3077         }
3078         req->attributeSet = rpn->attributeSetId;
3079         if (!req->attributeSet)
3080             req->attributeSet = odr_oiddup(c->odr_out, yaz_oid_attset_bib_1);
3081         if (rpn->RPNStructure->which == Z_RPNStructure_simple &&
3082             rpn->RPNStructure->u.simple->which == Z_Operand_APT)
3083         {
3084             req->termListAndStartPoint =
3085                 rpn->RPNStructure->u.simple->u.attributesPlusTerm;
3086         }
3087         else
3088         {
3089             set_ZOOM_error(c, ZOOM_ERROR_INVALID_QUERY, 0);
3090             return zoom_complete;
3091         }
3092     }
3093     else
3094     {
3095         set_ZOOM_error(c, ZOOM_ERROR_UNSUPPORTED_QUERY, 0);
3096         return zoom_complete;
3097     }
3098
3099     *req->numberOfTermsRequested =
3100         ZOOM_options_get_int(scan->options, "number", 20);
3101
3102     req->preferredPositionInResponse =
3103         odr_intdup(c->odr_out,
3104                    ZOOM_options_get_int(scan->options, "position", 1));
3105
3106     req->stepSize =
3107         odr_intdup(c->odr_out,
3108                    ZOOM_options_get_int(scan->options, "stepSize", 0));
3109
3110     req->databaseNames = scan->databaseNames;
3111     req->num_databaseNames = scan->num_databaseNames;
3112
3113     return send_APDU(c, apdu);
3114 }
3115
3116 #if YAZ_HAVE_XML2
3117 static zoom_ret ZOOM_connection_srw_send_scan(ZOOM_connection c)
3118 {
3119     ZOOM_scanset scan;
3120     Z_SRW_PDU *sr = 0;
3121     const char *option_val = 0;
3122
3123     if (!c->tasks)
3124         return zoom_complete;
3125     assert (c->tasks->which == ZOOM_TASK_SCAN);
3126     scan = c->tasks->u.scan.scan;
3127
3128     sr = ZOOM_srw_get_pdu(c, Z_SRW_scan_request);
3129
3130     /* SRU scan can only carry CQL and PQF */
3131     if (scan->query->z_query->which == Z_Query_type_104)
3132     {
3133         sr->u.scan_request->query_type = Z_SRW_query_type_cql;
3134         sr->u.scan_request->scanClause.cql = scan->query->query_string;
3135     }
3136     else if (scan->query->z_query->which == Z_Query_type_1
3137              || scan->query->z_query->which == Z_Query_type_101)
3138     {
3139         sr->u.scan_request->query_type = Z_SRW_query_type_pqf;
3140         sr->u.scan_request->scanClause.pqf = scan->query->query_string;
3141     }
3142     else
3143     {
3144         set_ZOOM_error(c, ZOOM_ERROR_UNSUPPORTED_QUERY, 0);
3145         return zoom_complete;
3146     }
3147
3148     sr->u.scan_request->maximumTerms = odr_intdup(
3149         c->odr_out, ZOOM_options_get_int(scan->options, "number", 10));
3150
3151     sr->u.scan_request->responsePosition = odr_intdup(
3152         c->odr_out, ZOOM_options_get_int(scan->options, "position", 1));
3153
3154     option_val = ZOOM_options_get(scan->options, "extraArgs");
3155     yaz_encode_sru_extra(sr, c->odr_out, option_val);
3156     return send_srw(c, sr);
3157 }
3158 #else
3159 static zoom_ret ZOOM_connection_srw_send_scan(ZOOM_connection c)
3160 {
3161     return zoom_complete;
3162 }
3163 #endif
3164
3165
3166 ZOOM_API(size_t)
3167     ZOOM_scanset_size(ZOOM_scanset scan)
3168 {
3169     if (!scan)
3170         return 0;
3171
3172     if (scan->scan_response && scan->scan_response->entries)
3173         return scan->scan_response->entries->num_entries;
3174     else if (scan->srw_scan_response)
3175         return scan->srw_scan_response->num_terms;
3176     return 0;
3177 }
3178
3179 static void ZOOM_scanset_term_x(ZOOM_scanset scan, size_t pos,
3180                                 size_t *occ,
3181                                 const char **value_term, size_t *value_len,
3182                                 const char **disp_term, size_t *disp_len)
3183 {
3184     size_t noent = ZOOM_scanset_size(scan);
3185
3186     *value_term = 0;
3187     *value_len = 0;
3188
3189     *disp_term = 0;
3190     *disp_len = 0;
3191
3192     *occ = 0;
3193     if (pos >= noent)
3194         return;
3195     if (scan->scan_response)
3196     {
3197         Z_ScanResponse *res = scan->scan_response;
3198         if (res->entries->entries[pos]->which == Z_Entry_termInfo)
3199         {
3200             Z_TermInfo *t = res->entries->entries[pos]->u.termInfo;
3201
3202             *value_term = (const char *) t->term->u.general->buf;
3203             *value_len = t->term->u.general->len;
3204             if (t->displayTerm)
3205             {
3206                 *disp_term = t->displayTerm;
3207                 *disp_len = strlen(*disp_term);
3208             }
3209             else if (t->term->which == Z_Term_general)
3210             {
3211                 *disp_term = (const char *) t->term->u.general->buf;
3212                 *disp_len = t->term->u.general->len;
3213             }
3214             *occ = t->globalOccurrences ? *t->globalOccurrences : 0;
3215         }
3216     }
3217     if (scan->srw_scan_response)
3218     {
3219         Z_SRW_scanResponse *res = scan->srw_scan_response;
3220         Z_SRW_scanTerm *t = res->terms + pos;
3221         if (t)
3222         {
3223             *value_term = t->value;
3224             *value_len = strlen(*value_term);
3225
3226             if (t->displayTerm)
3227                 *disp_term = t->displayTerm;
3228             else
3229                 *disp_term = t->value;
3230             *disp_len = strlen(*disp_term);
3231             *occ = t->numberOfRecords ? *t->numberOfRecords : 0;
3232         }
3233     }
3234 }
3235
3236 ZOOM_API(const char *)
3237     ZOOM_scanset_term(ZOOM_scanset scan, size_t pos,
3238                       size_t *occ, size_t *len)
3239 {
3240     const char *value_term = 0;
3241     size_t value_len = 0;
3242     const char *disp_term = 0;
3243     size_t disp_len = 0;
3244
3245     ZOOM_scanset_term_x(scan, pos, occ, &value_term, &value_len,
3246                         &disp_term, &disp_len);
3247
3248     *len = value_len;
3249     return value_term;
3250 }
3251
3252 ZOOM_API(const char *)
3253     ZOOM_scanset_display_term(ZOOM_scanset scan, size_t pos,
3254                               size_t *occ, size_t *len)
3255 {
3256     const char *value_term = 0;
3257     size_t value_len = 0;
3258     const char *disp_term = 0;
3259     size_t disp_len = 0;
3260
3261     ZOOM_scanset_term_x(scan, pos, occ, &value_term, &value_len,
3262                         &disp_term, &disp_len);
3263
3264     *len = disp_len;
3265     return disp_term;
3266 }
3267
3268 ZOOM_API(const char *)
3269     ZOOM_scanset_option_get(ZOOM_scanset scan, const char *key)
3270 {
3271     return ZOOM_options_get(scan->options, key);
3272 }
3273
3274 ZOOM_API(void)
3275     ZOOM_scanset_option_set(ZOOM_scanset scan, const char *key,
3276                             const char *val)
3277 {
3278     ZOOM_options_set(scan->options, key, val);
3279 }
3280
3281 static Z_APDU *create_es_package(ZOOM_package p, const Odr_oid *oid)
3282 {
3283     const char *str;
3284     Z_APDU *apdu = zget_APDU(p->odr_out, Z_APDU_extendedServicesRequest);
3285     Z_ExtendedServicesRequest *req = apdu->u.extendedServicesRequest;
3286
3287     str = ZOOM_options_get(p->options, "package-name");
3288     if (str && *str)
3289         req->packageName = odr_strdup(p->odr_out, str);
3290
3291     str = ZOOM_options_get(p->options, "user-id");
3292     if (str)
3293         req->userId = odr_strdup_null(p->odr_out, str);
3294
3295     req->packageType = odr_oiddup(p->odr_out, oid);
3296
3297     str = ZOOM_options_get(p->options, "function");
3298     if (str)
3299     {
3300         if (!strcmp (str, "create"))
3301             *req->function = Z_ExtendedServicesRequest_create;
3302         if (!strcmp (str, "delete"))
3303             *req->function = Z_ExtendedServicesRequest_delete;
3304         if (!strcmp (str, "modify"))
3305             *req->function = Z_ExtendedServicesRequest_modify;
3306     }
3307
3308     str = ZOOM_options_get(p->options, "waitAction");
3309     if (str)
3310     {
3311         if (!strcmp (str, "wait"))
3312             *req->waitAction = Z_ExtendedServicesRequest_wait;
3313         if (!strcmp (str, "waitIfPossible"))
3314             *req->waitAction = Z_ExtendedServicesRequest_waitIfPossible;
3315         if (!strcmp (str, "dontWait"))
3316             *req->waitAction = Z_ExtendedServicesRequest_dontWait;
3317         if (!strcmp (str, "dontReturnPackage"))
3318             *req->waitAction = Z_ExtendedServicesRequest_dontReturnPackage;
3319     }
3320     return apdu;
3321 }
3322
3323 static const char *ill_array_lookup(void *clientData, const char *idx)
3324 {
3325     ZOOM_package p = (ZOOM_package) clientData;
3326     return ZOOM_options_get(p->options, idx+4);
3327 }
3328
3329 static Z_External *encode_ill_request(ZOOM_package p)
3330 {
3331     ODR out = p->odr_out;
3332     ILL_Request *req;
3333     Z_External *r = 0;
3334     struct ill_get_ctl ctl;
3335
3336     ctl.odr = p->odr_out;
3337     ctl.clientData = p;
3338     ctl.f = ill_array_lookup;
3339
3340     req = ill_get_ILLRequest(&ctl, "ill", 0);
3341
3342     if (!ill_Request(out, &req, 0, 0))
3343     {
3344         int ill_request_size;
3345         char *ill_request_buf = odr_getbuf(out, &ill_request_size, 0);
3346         if (ill_request_buf)
3347             odr_setbuf(out, ill_request_buf, ill_request_size, 1);
3348         return 0;
3349     }
3350     else
3351     {
3352         int illRequest_size = 0;
3353         char *illRequest_buf = odr_getbuf(out, &illRequest_size, 0);
3354
3355         r = (Z_External *) odr_malloc(out, sizeof(*r));
3356         r->direct_reference = odr_oiddup(out, yaz_oid_general_isoill_1);
3357         r->indirect_reference = 0;
3358         r->descriptor = 0;
3359         r->which = Z_External_single;
3360
3361         r->u.single_ASN1_type =
3362             odr_create_Odr_oct(out,
3363                                (unsigned char *)illRequest_buf,
3364                                illRequest_size);
3365     }
3366     return r;
3367 }
3368
3369 static Z_ItemOrder *encode_item_order(ZOOM_package p)
3370 {
3371     Z_ItemOrder *req = (Z_ItemOrder *) odr_malloc(p->odr_out, sizeof(*req));
3372     const char *str;
3373     int len;
3374
3375     req->which = Z_IOItemOrder_esRequest;
3376     req->u.esRequest = (Z_IORequest *)
3377         odr_malloc(p->odr_out,sizeof(Z_IORequest));
3378
3379     /* to keep part ... */
3380     req->u.esRequest->toKeep = (Z_IOOriginPartToKeep *)
3381         odr_malloc(p->odr_out,sizeof(Z_IOOriginPartToKeep));
3382     req->u.esRequest->toKeep->supplDescription = 0;
3383     req->u.esRequest->toKeep->contact = (Z_IOContact *)
3384         odr_malloc(p->odr_out, sizeof(*req->u.esRequest->toKeep->contact));
3385
3386     str = ZOOM_options_get(p->options, "contact-name");
3387     req->u.esRequest->toKeep->contact->name =
3388         odr_strdup_null(p->odr_out, str);
3389
3390     str = ZOOM_options_get(p->options, "contact-phone");
3391     req->u.esRequest->toKeep->contact->phone =
3392         odr_strdup_null(p->odr_out, str);
3393
3394     str = ZOOM_options_get(p->options, "contact-email");
3395     req->u.esRequest->toKeep->contact->email =
3396         odr_strdup_null(p->odr_out, str);
3397
3398     req->u.esRequest->toKeep->addlBilling = 0;
3399
3400     /* not to keep part ... */
3401     req->u.esRequest->notToKeep = (Z_IOOriginPartNotToKeep *)
3402         odr_malloc(p->odr_out,sizeof(Z_IOOriginPartNotToKeep));
3403
3404     str = ZOOM_options_get(p->options, "itemorder-setname");
3405     if (!str)
3406         str = "default";
3407
3408     if (!*str)
3409         req->u.esRequest->notToKeep->resultSetItem = 0;
3410     else
3411     {
3412         req->u.esRequest->notToKeep->resultSetItem = (Z_IOResultSetItem *)
3413             odr_malloc(p->odr_out, sizeof(Z_IOResultSetItem));
3414
3415         req->u.esRequest->notToKeep->resultSetItem->resultSetId =
3416             odr_strdup(p->odr_out, str);
3417         req->u.esRequest->notToKeep->resultSetItem->item =
3418             odr_intdup(p->odr_out, 0);
3419
3420         str = ZOOM_options_get(p->options, "itemorder-item");
3421         *req->u.esRequest->notToKeep->resultSetItem->item =
3422             (str ? atoi(str) : 1);
3423     }
3424
3425     str = ZOOM_options_getl(p->options, "doc", &len);
3426     if (str)
3427     {
3428         req->u.esRequest->notToKeep->itemRequest =
3429             z_ext_record_xml(p->odr_out, str, len);
3430     }
3431     else
3432         req->u.esRequest->notToKeep->itemRequest = encode_ill_request(p);
3433
3434     return req;
3435 }
3436
3437 Z_APDU *create_admin_package(ZOOM_package p, int type,
3438                              Z_ESAdminOriginPartToKeep **toKeepP,
3439                              Z_ESAdminOriginPartNotToKeep **notToKeepP)
3440 {
3441     Z_APDU *apdu = create_es_package(p, yaz_oid_extserv_admin);
3442     if (apdu)
3443     {
3444         Z_ESAdminOriginPartToKeep  *toKeep;
3445         Z_ESAdminOriginPartNotToKeep  *notToKeep;
3446         Z_External *r = (Z_External *) odr_malloc(p->odr_out, sizeof(*r));
3447         const char *first_db = "Default";
3448         int num_db;
3449         char **db = set_DatabaseNames(p->connection, p->options, &num_db,
3450                                       p->odr_out);
3451         if (num_db > 0)
3452             first_db = db[0];
3453
3454         r->direct_reference = odr_oiddup(p->odr_out, yaz_oid_extserv_admin);
3455         r->descriptor = 0;
3456         r->indirect_reference = 0;
3457         r->which = Z_External_ESAdmin;
3458
3459         r->u.adminService = (Z_Admin *)
3460             odr_malloc(p->odr_out, sizeof(*r->u.adminService));
3461         r->u.adminService->which = Z_Admin_esRequest;
3462         r->u.adminService->u.esRequest = (Z_AdminEsRequest *)
3463             odr_malloc(p->odr_out, sizeof(*r->u.adminService->u.esRequest));
3464
3465         toKeep = r->u.adminService->u.esRequest->toKeep =
3466             (Z_ESAdminOriginPartToKeep *)
3467             odr_malloc(p->odr_out, sizeof(*r->u.adminService->u.esRequest->toKeep));
3468         toKeep->which = type;
3469         toKeep->databaseName = odr_strdup(p->odr_out, first_db);
3470         toKeep->u.create = odr_nullval();
3471         apdu->u.extendedServicesRequest->taskSpecificParameters = r;
3472
3473         r->u.adminService->u.esRequest->notToKeep = notToKeep =
3474             (Z_ESAdminOriginPartNotToKeep *)
3475             odr_malloc(p->odr_out,
3476                        sizeof(*r->u.adminService->u.esRequest->notToKeep));
3477         notToKeep->which = Z_ESAdminOriginPartNotToKeep_recordsWillFollow;
3478         notToKeep->u.recordsWillFollow = odr_nullval();
3479         if (toKeepP)
3480             *toKeepP = toKeep;
3481         if (notToKeepP)
3482             *notToKeepP = notToKeep;
3483     }
3484     return apdu;
3485 }
3486
3487 static Z_APDU *create_xmlupdate_package(ZOOM_package p)
3488 {
3489     Z_APDU *apdu = create_es_package(p, yaz_oid_extserv_xml_es);
3490     Z_ExtendedServicesRequest *req = apdu->u.extendedServicesRequest;
3491     Z_External *ext = (Z_External *) odr_malloc(p->odr_out, sizeof(*ext));
3492     int len;
3493     const char *doc = ZOOM_options_getl(p->options, "doc", &len);
3494
3495     if (!doc)
3496     {
3497         doc = "";
3498         len = 0;
3499     }
3500
3501     req->taskSpecificParameters = ext;
3502     ext->direct_reference = req->packageType;
3503     ext->descriptor = 0;
3504     ext->indirect_reference = 0;
3505
3506     ext->which = Z_External_octet;
3507     ext->u.single_ASN1_type =
3508         odr_create_Odr_oct(p->odr_out, (const unsigned char *) doc, len);
3509     return apdu;
3510 }
3511
3512 static Z_APDU *create_update_package(ZOOM_package p)
3513 {
3514     Z_APDU *apdu = 0;
3515     const char *first_db = "Default";
3516     int num_db;
3517     char **db = set_DatabaseNames(p->connection, p->options, &num_db, p->odr_out);
3518     const char *action = ZOOM_options_get(p->options, "action");
3519     int recordIdOpaque_len;
3520     const char *recordIdOpaque = ZOOM_options_getl(p->options, "recordIdOpaque",
3521         &recordIdOpaque_len);
3522     const char *recordIdNumber = ZOOM_options_get(p->options, "recordIdNumber");
3523     int record_len;
3524     const char *record_buf = ZOOM_options_getl(p->options, "record",
3525         &record_len);
3526     int recordOpaque_len;
3527     const char *recordOpaque_buf = ZOOM_options_getl(p->options, "recordOpaque",
3528         &recordOpaque_len);
3529     const char *syntax_str = ZOOM_options_get(p->options, "syntax");
3530     const char *version = ZOOM_options_get(p->options, "updateVersion");
3531
3532     const char *correlationInfo_note =
3533         ZOOM_options_get(p->options, "correlationInfo.note");
3534     const char *correlationInfo_id =
3535         ZOOM_options_get(p->options, "correlationInfo.id");
3536     int action_no = -1;
3537     Odr_oid *syntax_oid = 0;
3538     const Odr_oid *package_oid = yaz_oid_extserv_database_update;
3539
3540     if (!version)
3541         version = "3";
3542     if (!syntax_str)
3543         syntax_str = "xml";
3544     if (!record_buf && !recordOpaque_buf)
3545     {
3546         record_buf = "void";
3547         record_len = 4;
3548         syntax_str = "SUTRS";
3549     }
3550
3551     if (syntax_str)
3552     {
3553         syntax_oid = yaz_string_to_oid_odr(yaz_oid_std(),
3554                                            CLASS_RECSYN, syntax_str,
3555                                            p->odr_out);
3556     }
3557     if (!syntax_oid)
3558         return 0;
3559
3560     if (num_db > 0)
3561         first_db = db[0];
3562
3563     switch(*version)
3564     {
3565     case '1':
3566         package_oid = yaz_oid_extserv_database_update_first_version;
3567         /* old update does not support specialUpdate */
3568         if (!action)
3569             action = "recordInsert";
3570         break;
3571     case '2':
3572         if (!action)
3573             action = "specialUpdate";
3574         package_oid = yaz_oid_extserv_database_update_second_version;
3575         break;
3576     case '3':
3577         if (!action)
3578             action = "specialUpdate";
3579         package_oid = yaz_oid_extserv_database_update;
3580         break;
3581     default:
3582         return 0;
3583     }
3584
3585     if (!strcmp(action, "recordInsert"))
3586         action_no = Z_IUOriginPartToKeep_recordInsert;
3587     else if (!strcmp(action, "recordReplace"))
3588         action_no = Z_IUOriginPartToKeep_recordReplace;
3589     else if (!strcmp(action, "recordDelete"))
3590         action_no = Z_IUOriginPartToKeep_recordDelete;
3591     else if (!strcmp(action, "elementUpdate"))
3592         action_no = Z_IUOriginPartToKeep_elementUpdate;
3593     else if (!strcmp(action, "specialUpdate"))
3594         action_no = Z_IUOriginPartToKeep_specialUpdate;
3595     else
3596         return 0;
3597
3598     apdu = create_es_package(p, package_oid);
3599     if (apdu)
3600     {
3601         Z_IUOriginPartToKeep *toKeep;
3602         Z_IUSuppliedRecords *notToKeep;
3603         Z_External *r = (Z_External *)
3604             odr_malloc(p->odr_out, sizeof(*r));
3605         const char *elementSetName =
3606             ZOOM_options_get(p->options, "elementSetName");
3607
3608         apdu->u.extendedServicesRequest->taskSpecificParameters = r;
3609
3610         r->direct_reference = odr_oiddup(p->odr_out, package_oid);
3611         r->descriptor = 0;
3612         r->which = Z_External_update;
3613         r->indirect_reference = 0;
3614         r->u.update = (Z_IUUpdate *)
3615             odr_malloc(p->odr_out, sizeof(*r->u.update));
3616
3617         r->u.update->which = Z_IUUpdate_esRequest;
3618         r->u.update->u.esRequest = (Z_IUUpdateEsRequest *)
3619             odr_malloc(p->odr_out, sizeof(*r->u.update->u.esRequest));
3620         toKeep = r->u.update->u.esRequest->toKeep =
3621             (Z_IUOriginPartToKeep *)
3622             odr_malloc(p->odr_out, sizeof(*toKeep));
3623
3624         toKeep->databaseName = odr_strdup(p->odr_out, first_db);
3625         toKeep->schema = 0;
3626
3627         toKeep->elementSetName = odr_strdup_null(p->odr_out, elementSetName);
3628
3629         toKeep->actionQualifier = 0;
3630         toKeep->action = odr_intdup(p->odr_out, action_no);
3631
3632         notToKeep = r->u.update->u.esRequest->notToKeep =
3633             (Z_IUSuppliedRecords *)
3634             odr_malloc(p->odr_out, sizeof(*notToKeep));
3635         notToKeep->num = 1;
3636         notToKeep->elements = (Z_IUSuppliedRecords_elem **)
3637             odr_malloc(p->odr_out, sizeof(*notToKeep->elements));
3638         notToKeep->elements[0] = (Z_IUSuppliedRecords_elem *)
3639             odr_malloc(p->odr_out, sizeof(**notToKeep->elements));
3640         notToKeep->elements[0]->which = Z_IUSuppliedRecords_elem_opaque;
3641         if (recordIdOpaque)
3642         {
3643             notToKeep->elements[0]->u.opaque =
3644                 odr_create_Odr_oct(p->odr_out,
3645                                    (const unsigned char *) recordIdOpaque,
3646                                    recordIdOpaque_len);
3647         }
3648         else if (recordIdNumber)
3649         {
3650             notToKeep->elements[0]->which = Z_IUSuppliedRecords_elem_number;
3651
3652             notToKeep->elements[0]->u.number =
3653                 odr_intdup(p->odr_out, atoi(recordIdNumber));
3654         }
3655         else
3656             notToKeep->elements[0]->u.opaque = 0;
3657         notToKeep->elements[0]->supplementalId = 0;
3658         if (correlationInfo_note || correlationInfo_id)
3659         {
3660             Z_IUCorrelationInfo *ci;
3661             ci = notToKeep->elements[0]->correlationInfo =
3662                 (Z_IUCorrelationInfo *) odr_malloc(p->odr_out, sizeof(*ci));
3663             ci->note = odr_strdup_null(p->odr_out, correlationInfo_note);
3664             ci->id = correlationInfo_id ?
3665                 odr_intdup(p->odr_out, atoi(correlationInfo_id)) : 0;
3666         }
3667         else
3668             notToKeep->elements[0]->correlationInfo = 0;
3669         if (recordOpaque_buf)
3670         {
3671             notToKeep->elements[0]->record =
3672                 z_ext_record_oid_any(p->odr_out, syntax_oid,
3673                                  recordOpaque_buf, recordOpaque_len);
3674         }
3675         else
3676         {
3677             notToKeep->elements[0]->record =
3678                 z_ext_record_oid(p->odr_out, syntax_oid,
3679                                  record_buf, record_len);
3680         }
3681     }
3682     if (0 && apdu)
3683     {
3684         ODR print = odr_createmem(ODR_PRINT);
3685
3686         z_APDU(print, &apdu, 0, 0);
3687         odr_destroy(print);
3688     }
3689     return apdu;
3690 }
3691
3692 ZOOM_API(void)
3693     ZOOM_package_send(ZOOM_package p, const char *type)
3694 {
3695     Z_APDU *apdu = 0;
3696     ZOOM_connection c;
3697     if (!p)
3698         return;
3699     c = p->connection;
3700     odr_reset(p->odr_out);
3701     xfree(p->buf_out);
3702     p->buf_out = 0;
3703     if (!strcmp(type, "itemorder"))
3704     {
3705         apdu = create_es_package(p, yaz_oid_extserv_item_order);
3706         if (apdu)
3707         {
3708             Z_External *r = (Z_External *) odr_malloc(p->odr_out, sizeof(*r));
3709
3710             r->direct_reference =
3711                 odr_oiddup(p->odr_out, yaz_oid_extserv_item_order);
3712             r->descriptor = 0;
3713             r->which = Z_External_itemOrder;
3714             r->indirect_reference = 0;
3715             r->u.itemOrder = encode_item_order(p);
3716
3717             apdu->u.extendedServicesRequest->taskSpecificParameters = r;
3718         }
3719     }
3720     else if (!strcmp(type, "create"))  /* create database */
3721     {
3722         apdu = create_admin_package(p, Z_ESAdminOriginPartToKeep_create,
3723                                     0, 0);
3724     }
3725     else if (!strcmp(type, "drop"))  /* drop database */
3726     {
3727         apdu = create_admin_package(p, Z_ESAdminOriginPartToKeep_drop,
3728                                     0, 0);
3729     }
3730     else if (!strcmp(type, "commit"))  /* commit changes */
3731     {
3732         apdu = create_admin_package(p, Z_ESAdminOriginPartToKeep_commit,
3733                                     0, 0);
3734     }
3735     else if (!strcmp(type, "update")) /* update record(s) */
3736     {
3737         apdu = create_update_package(p);
3738     }
3739     else if (!strcmp(type, "xmlupdate"))
3740     {
3741         apdu = create_xmlupdate_package(p);
3742     }
3743     if (apdu)
3744     {
3745         if (encode_APDU(p->connection, apdu, p->odr_out) == 0)
3746         {
3747             char *buf;
3748
3749             ZOOM_task task = ZOOM_connection_add_task(c, ZOOM_TASK_PACKAGE);
3750             task->u.package = p;
3751             buf = odr_getbuf(p->odr_out, &p->len_out, 0);
3752             p->buf_out = (char *) xmalloc(p->len_out);
3753             memcpy(p->buf_out, buf, p->len_out);
3754
3755             (p->refcount)++;
3756             if (!c->async)
3757             {
3758                 while (ZOOM_event(1, &c))
3759                     ;
3760             }
3761         }
3762     }
3763 }
3764
3765 ZOOM_API(ZOOM_package)
3766     ZOOM_connection_package(ZOOM_connection c, ZOOM_options options)
3767 {
3768     ZOOM_package p = (ZOOM_package) xmalloc(sizeof(*p));
3769
3770     p->connection = c;
3771     p->odr_out = odr_createmem(ODR_ENCODE);
3772     p->options = ZOOM_options_create_with_parent2(options, c->options);
3773     p->refcount = 1;
3774     p->buf_out = 0;
3775     p->len_out = 0;
3776     return p;
3777 }
3778
3779 ZOOM_API(void)
3780     ZOOM_package_destroy(ZOOM_package p)
3781 {
3782     if (!p)
3783         return;
3784     (p->refcount)--;
3785     if (p->refcount == 0)
3786     {
3787         odr_destroy(p->odr_out);
3788         xfree(p->buf_out);
3789
3790         ZOOM_options_destroy(p->options);
3791         xfree(p);
3792     }
3793 }
3794
3795 ZOOM_API(const char *)
3796     ZOOM_package_option_get(ZOOM_package p, const char *key)
3797 {
3798     return ZOOM_options_get(p->options, key);
3799 }
3800
3801 ZOOM_API(const char *)
3802     ZOOM_package_option_getl(ZOOM_package p, const char *key, int *lenp)
3803 {
3804     return ZOOM_options_getl(p->options, key, lenp);
3805 }
3806
3807 ZOOM_API(void)
3808     ZOOM_package_option_set(ZOOM_package p, const char *key,
3809                             const char *val)
3810 {
3811     ZOOM_options_set(p->options, key, val);
3812 }
3813
3814 ZOOM_API(void)
3815     ZOOM_package_option_setl(ZOOM_package p, const char *key,
3816                              const char *val, int len)
3817 {
3818     ZOOM_options_setl(p->options, key, val, len);
3819 }
3820
3821 ZOOM_API(int)
3822     ZOOM_connection_exec_task(ZOOM_connection c)
3823 {
3824     ZOOM_task task = c->tasks;
3825     zoom_ret ret = zoom_complete;
3826
3827     if (!task)
3828         return 0;
3829     yaz_log(log_details, "%p ZOOM_connection_exec_task type=%d run=%d",
3830             c, task->which, task->running);
3831     if (c->error != ZOOM_ERROR_NONE)
3832     {
3833         yaz_log(log_details, "%p ZOOM_connection_exec_task "
3834                 "removing tasks because of error = %d", c, c->error);
3835         ZOOM_connection_remove_tasks(c);
3836         return 0;
3837     }
3838     if (task->running)
3839     {
3840         yaz_log(log_details, "%p ZOOM_connection_exec_task "
3841                 "task already running", c);
3842         return 0;
3843     }
3844     task->running = 1;
3845     ret = zoom_complete;
3846     if (c->cs || task->which == ZOOM_TASK_CONNECT)
3847     {
3848         switch (task->which)
3849         {
3850         case ZOOM_TASK_SEARCH:
3851             if (c->proto == PROTO_HTTP)
3852                 ret = ZOOM_connection_srw_send_search(c);
3853             else
3854                 ret = ZOOM_connection_send_search(c);
3855             break;
3856         case ZOOM_TASK_RETRIEVE:
3857             if (c->proto == PROTO_HTTP)
3858                 ret = ZOOM_connection_srw_send_search(c);
3859             else
3860                 ret = send_present(c);
3861             break;
3862         case ZOOM_TASK_CONNECT:
3863             ret = do_connect(c);
3864             break;
3865         case ZOOM_TASK_SCAN:
3866             if (c->proto == PROTO_HTTP)
3867                 ret = ZOOM_connection_srw_send_scan(c);
3868             else
3869                 ret = ZOOM_connection_send_scan(c);
3870             break;
3871         case ZOOM_TASK_PACKAGE:
3872             ret = send_package(c);
3873             break;
3874         case ZOOM_TASK_SORT:
3875             c->tasks->u.sort.resultset->r_sort_spec =
3876                 c->tasks->u.sort.q->sort_spec;
3877             ret = send_sort(c, c->tasks->u.sort.resultset);
3878             break;
3879         }
3880     }
3881     else
3882     {
3883         yaz_log(log_details, "%p ZOOM_connection_exec_task "
3884                 "remove tasks because no connection exist", c);
3885         ZOOM_connection_remove_tasks(c);
3886     }
3887     if (ret == zoom_complete)
3888     {
3889         yaz_log(log_details, "%p ZOOM_connection_exec_task "
3890                 "task removed (complete)", c);
3891         ZOOM_connection_remove_task(c);
3892         return 0;
3893     }
3894     yaz_log(log_details, "%p ZOOM_connection_exec_task "
3895             "task pending", c);
3896     return 1;
3897 }
3898
3899 static zoom_ret send_sort_present(ZOOM_connection c)
3900 {
3901     zoom_ret r = zoom_complete;
3902
3903     if (c->tasks && c->tasks->which == ZOOM_TASK_SEARCH)
3904         r = send_sort(c, c->tasks->u.search.resultset);
3905     if (r == zoom_complete)
3906         r = send_present(c);
3907     return r;
3908 }
3909
3910 static int es_response_taskpackage_update(ZOOM_connection c,
3911                 Z_IUUpdateTaskPackage *utp)
3912 {
3913         if (utp && utp->targetPart)
3914         {
3915                 Z_IUTargetPart *targetPart = utp->targetPart;
3916                 switch ( *targetPart->updateStatus ) {
3917                         case Z_IUTargetPart_success:
3918                                 ZOOM_options_set(c->tasks->u.package->options,"updateStatus", "success");
3919                                 break;
3920                         case Z_IUTargetPart_partial:
3921                                 ZOOM_options_set(c->tasks->u.package->options,"updateStatus", "partial");
3922                                 break;
3923                         case Z_IUTargetPart_failure:
3924                                 ZOOM_options_set(c->tasks->u.package->options,"updateStatus", "failure");
3925                                 if (targetPart->globalDiagnostics && targetPart->num_globalDiagnostics > 0)
3926                                         response_diag(c, targetPart->globalDiagnostics[0]);
3927                                 break;
3928                 }
3929                 // NOTE: Individual record status, surrogate diagnostics, and supplemental diagnostics ARE NOT REPORTED.
3930         }
3931     return 1;
3932 }
3933
3934 static int es_response_taskpackage(ZOOM_connection c,
3935                                    Z_TaskPackage *taskPackage)
3936 {
3937         // targetReference
3938         Odr_oct *id = taskPackage->targetReference;
3939         if (id)
3940                 ZOOM_options_setl(c->tasks->u.package->options,
3941                                                         "targetReference", (char*) id->buf, id->len);
3942
3943         // taskStatus
3944         switch ( *taskPackage->taskStatus ) {
3945                 case Z_TaskPackage_pending:
3946                         ZOOM_options_set(c->tasks->u.package->options,"taskStatus", "pending");
3947                         break;
3948                 case Z_TaskPackage_active:
3949                         ZOOM_options_set(c->tasks->u.package->options,"taskStatus", "active");
3950                         break;
3951                 case Z_TaskPackage_complete:
3952                         ZOOM_options_set(c->tasks->u.package->options,"taskStatus", "complete");
3953                         break;
3954                 case Z_TaskPackage_aborted:
3955                         ZOOM_options_set(c->tasks->u.package->options,"taskStatus", "aborted");
3956                         if ( taskPackage->num_packageDiagnostics && taskPackage->packageDiagnostics )
3957                                 response_diag(c, taskPackage->packageDiagnostics[0]);
3958                         break;
3959         }
3960
3961         // taskSpecificParameters
3962         // NOTE: Only Update implemented, no others.
3963         if ( taskPackage->taskSpecificParameters->which == Z_External_update ) {
3964                         Z_IUUpdateTaskPackage *utp = taskPackage->taskSpecificParameters->u.update->u.taskPackage;
3965                         es_response_taskpackage_update(c, utp);
3966         }
3967         return 1;
3968 }
3969
3970
3971 static int es_response(ZOOM_connection c,
3972                        Z_ExtendedServicesResponse *res)
3973 {
3974     if (!c->tasks || c->tasks->which != ZOOM_TASK_PACKAGE)
3975         return 0;
3976     switch (*res->operationStatus) {
3977         case Z_ExtendedServicesResponse_done:
3978             ZOOM_options_set(c->tasks->u.package->options,"operationStatus", "done");
3979             break;
3980         case Z_ExtendedServicesResponse_accepted:
3981             ZOOM_options_set(c->tasks->u.package->options,"operationStatus", "accepted");
3982             break;
3983         case Z_ExtendedServicesResponse_failure:
3984             ZOOM_options_set(c->tasks->u.package->options,"operationStatus", "failure");
3985             if (res->diagnostics && res->num_diagnostics > 0)
3986                 response_diag(c, res->diagnostics[0]);
3987             break;
3988     }
3989     if (res->taskPackage &&
3990         res->taskPackage->which == Z_External_extendedService)
3991     {
3992         Z_TaskPackage *taskPackage = res->taskPackage->u.extendedService;
3993         es_response_taskpackage(c, taskPackage);
3994     }
3995     if (res->taskPackage &&
3996         res->taskPackage->which == Z_External_octet)
3997     {
3998         Odr_oct *doc = res->taskPackage->u.octet_aligned;
3999         ZOOM_options_setl(c->tasks->u.package->options,
4000                           "xmlUpdateDoc", (char*) doc->buf, doc->len);
4001     }
4002     return 1;
4003 }
4004
4005 static void interpret_init_diag(ZOOM_connection c,
4006                                 Z_DiagnosticFormat *diag)
4007 {
4008     if (diag->num > 0)
4009     {
4010         Z_DiagnosticFormat_s *ds = diag->elements[0];
4011         if (ds->which == Z_DiagnosticFormat_s_defaultDiagRec)
4012             response_default_diag(c, ds->u.defaultDiagRec);
4013     }
4014 }
4015
4016
4017 static void interpret_otherinformation_field(ZOOM_connection c,
4018                                              Z_OtherInformation *ui)
4019 {
4020     int i;
4021     for (i = 0; i < ui->num_elements; i++)
4022     {
4023         Z_OtherInformationUnit *unit = ui->list[i];
4024         if (unit->which == Z_OtherInfo_externallyDefinedInfo &&
4025             unit->information.externallyDefinedInfo &&
4026             unit->information.externallyDefinedInfo->which ==
4027             Z_External_diag1)
4028         {
4029             interpret_init_diag(c, unit->information.externallyDefinedInfo->u.diag1);
4030         }
4031     }
4032 }
4033
4034
4035 static void set_init_option(const char *name, void *clientData) {
4036     ZOOM_connection c = (ZOOM_connection) clientData;
4037     char buf[80];
4038
4039     sprintf(buf, "init_opt_%.70s", name);
4040     ZOOM_connection_option_set(c, buf, "1");
4041 }
4042
4043
4044 static void recv_apdu(ZOOM_connection c, Z_APDU *apdu)
4045 {
4046     Z_InitResponse *initrs;
4047
4048     ZOOM_connection_set_mask(c, 0);
4049     yaz_log(log_details, "%p recv_apdu apdu->which=%d", c, apdu->which);
4050     switch(apdu->which)
4051     {
4052     case Z_APDU_initResponse:
4053         yaz_log(log_api, "%p recv_apdu: Received Init response", c);
4054         initrs = apdu->u.initResponse;
4055         ZOOM_connection_option_set(c, "serverImplementationId",
4056                                    initrs->implementationId ?
4057                                    initrs->implementationId : "");
4058         ZOOM_connection_option_set(c, "serverImplementationName",
4059                                    initrs->implementationName ?
4060                                    initrs->implementationName : "");
4061         ZOOM_connection_option_set(c, "serverImplementationVersion",
4062                                    initrs->implementationVersion ?
4063                                    initrs->implementationVersion : "");
4064         /* Set the three old options too, for old applications */
4065         ZOOM_connection_option_set(c, "targetImplementationId",
4066                                    initrs->implementationId ?
4067                                    initrs->implementationId : "");
4068         ZOOM_connection_option_set(c, "targetImplementationName",
4069                                    initrs->implementationName ?
4070                                    initrs->implementationName : "");
4071         ZOOM_connection_option_set(c, "targetImplementationVersion",
4072                                    initrs->implementationVersion ?
4073                                    initrs->implementationVersion : "");
4074
4075         /* Make initrs->options available as ZOOM-level options */
4076         yaz_init_opt_decode(initrs->options, set_init_option, (void*) c);
4077
4078         if (!*initrs->result)
4079         {
4080             Z_External *uif = initrs->userInformationField;
4081
4082             set_ZOOM_error(c, ZOOM_ERROR_INIT, 0); /* default error */
4083
4084             if (uif && uif->which == Z_External_userInfo1)
4085                 interpret_otherinformation_field(c, uif->u.userInfo1);
4086         }
4087         else
4088         {
4089             char *cookie =
4090                 yaz_oi_get_string_oid(&apdu->u.initResponse->otherInfo,
4091                                       yaz_oid_userinfo_cookie, 1, 0);
4092             xfree(c->cookie_in);
4093             c->cookie_in = 0;
4094             if (cookie)
4095                 c->cookie_in = xstrdup(cookie);
4096             if (ODR_MASK_GET(initrs->options, Z_Options_namedResultSets) &&
4097                 ODR_MASK_GET(initrs->protocolVersion, Z_ProtocolVersion_3))
4098                 c->support_named_resultsets = 1;
4099             if (c->tasks)
4100             {
4101                 assert(c->tasks->which == ZOOM_TASK_CONNECT);
4102                 ZOOM_connection_remove_task(c);
4103             }
4104             ZOOM_connection_exec_task(c);
4105         }
4106         if (ODR_MASK_GET(initrs->options, Z_Options_negotiationModel))
4107         {
4108             NMEM tmpmem = nmem_create();
4109             Z_CharSetandLanguageNegotiation *p =
4110                 yaz_get_charneg_record(initrs->otherInfo);
4111
4112             if (p)
4113             {
4114                 char *charset = NULL, *lang = NULL;
4115                 int sel;
4116
4117                 yaz_get_response_charneg(tmpmem, p, &charset, &lang, &sel);
4118                 yaz_log(log_details, "%p recv_apdu target accepted: "
4119                         "charset %s, language %s, select %d",
4120                         c,
4121                         charset ? charset : "none", lang ? lang : "none", sel);
4122                 if (charset)
4123                     ZOOM_connection_option_set(c, "negotiation-charset",
4124                                                charset);
4125                 if (lang)
4126                     ZOOM_connection_option_set(c, "negotiation-lang",
4127                                                lang);
4128
4129                 ZOOM_connection_option_set(
4130                     c,  "negotiation-charset-in-effect-for-records",
4131                     (sel != 0) ? "1" : "0");
4132                 nmem_destroy(tmpmem);
4133             }
4134         }
4135         break;
4136     case Z_APDU_searchResponse:
4137         yaz_log(log_api, "%p recv_apdu Search response", c);
4138         handle_search_response(c, apdu->u.searchResponse);
4139         if (send_sort_present(c) == zoom_complete)
4140             ZOOM_connection_remove_task(c);
4141         break;
4142     case Z_APDU_presentResponse:
4143         yaz_log(log_api, "%p recv_apdu Present response", c);
4144         handle_present_response(c, apdu->u.presentResponse);
4145         if (send_present(c) == zoom_complete)
4146             ZOOM_connection_remove_task(c);
4147         break;
4148     case Z_APDU_sortResponse:
4149         yaz_log(log_api, "%p recv_apdu Sort response", c);
4150         sort_response(c, apdu->u.sortResponse);
4151         if (send_present(c) == zoom_complete)
4152             ZOOM_connection_remove_task(c);
4153         break;
4154     case Z_APDU_scanResponse:
4155         yaz_log(log_api, "%p recv_apdu Scan response", c);
4156         scan_response(c, apdu->u.scanResponse);
4157         ZOOM_connection_remove_task(c);
4158         break;
4159     case Z_APDU_extendedServicesResponse:
4160         yaz_log(log_api, "%p recv_apdu Extended Services response", c);
4161         es_response(c, apdu->u.extendedServicesResponse);
4162         ZOOM_connection_remove_task(c);
4163         break;
4164     case Z_APDU_close:
4165         yaz_log(log_api, "%p recv_apdu Close PDU", c);
4166         if (!ZOOM_test_reconnect(c))
4167         {
4168             set_ZOOM_error(c, ZOOM_ERROR_CONNECTION_LOST, c->host_port);
4169             do_close(c);
4170         }
4171         break;
4172     default:
4173         yaz_log(log_api, "%p Received unknown PDU", c);
4174         set_ZOOM_error(c, ZOOM_ERROR_DECODE, 0);
4175         do_close(c);
4176     }
4177 }
4178
4179 #if YAZ_HAVE_XML2
4180 static zoom_ret handle_srw_response(ZOOM_connection c,
4181                                     Z_SRW_searchRetrieveResponse *res)
4182 {
4183     ZOOM_resultset resultset = 0;
4184     int i;
4185     NMEM nmem;
4186     ZOOM_Event event;
4187     int *start, *count;
4188     const char *syntax, *elementSetName;
4189
4190     if (!c->tasks)
4191         return zoom_complete;
4192
4193     switch(c->tasks->which)
4194     {
4195     case ZOOM_TASK_SEARCH:
4196         resultset = c->tasks->u.search.resultset;
4197         start = &c->tasks->u.search.start;
4198         count = &c->tasks->u.search.count;
4199         syntax = c->tasks->u.search.syntax;
4200         elementSetName = c->tasks->u.search.elementSetName;
4201
4202         if (!c->tasks->u.search.recv_search_fired)
4203         {
4204             event = ZOOM_Event_create(ZOOM_EVENT_RECV_SEARCH);
4205             ZOOM_connection_put_event(c, event);
4206             c->tasks->u.search.recv_search_fired = 1;
4207         }
4208         break;
4209     case ZOOM_TASK_RETRIEVE:
4210         resultset = c->tasks->u.retrieve.resultset;
4211         start = &c->tasks->u.retrieve.start;
4212         count = &c->tasks->u.retrieve.count;
4213         syntax = c->tasks->u.retrieve.syntax;
4214         elementSetName = c->tasks->u.retrieve.elementSetName;
4215         break;
4216     default:
4217         return zoom_complete;
4218     }
4219
4220     resultset->size = 0;
4221
4222     if (res->resultSetId)
4223         ZOOM_resultset_option_set(resultset, "resultSetId", res->resultSetId);
4224
4225     yaz_log(log_details, "%p handle_srw_response got SRW response OK", c);
4226
4227     if (res->num_diagnostics > 0)
4228     {
4229         set_SRU_error(c, &res->diagnostics[0]);
4230     }
4231     else
4232     {
4233         if (res->numberOfRecords)
4234             resultset->size = *res->numberOfRecords;
4235         for (i = 0; i<res->num_records; i++)
4236         {
4237             int pos;
4238             Z_SRW_record *sru_rec;
4239             Z_SRW_diagnostic *diag = 0;
4240             int num_diag;
4241
4242             Z_NamePlusRecord *npr = (Z_NamePlusRecord *)
4243                 odr_malloc(c->odr_in, sizeof(Z_NamePlusRecord));
4244
4245             if (res->records[i].recordPosition &&
4246                 *res->records[i].recordPosition > 0)
4247                 pos = *res->records[i].recordPosition - 1;
4248             else
4249                 pos = *start + i;
4250
4251             sru_rec = &res->records[i];
4252
4253             npr->databaseName = 0;
4254             npr->which = Z_NamePlusRecord_databaseRecord;
4255             npr->u.databaseRecord = (Z_External *)
4256                 odr_malloc(c->odr_in, sizeof(Z_External));
4257             npr->u.databaseRecord->descriptor = 0;
4258             npr->u.databaseRecord->direct_reference =
4259                 odr_oiddup(c->odr_in, yaz_oid_recsyn_xml);
4260             npr->u.databaseRecord->which = Z_External_octet;
4261
4262             npr->u.databaseRecord->u.octet_aligned = (Odr_oct *)
4263                 odr_malloc(c->odr_in, sizeof(Odr_oct));
4264             npr->u.databaseRecord->u.octet_aligned->buf = (unsigned char*)
4265                 sru_rec->recordData_buf;
4266             npr->u.databaseRecord->u.octet_aligned->len =
4267                 npr->u.databaseRecord->u.octet_aligned->size =
4268                 sru_rec->recordData_len;
4269
4270             if (sru_rec->recordSchema
4271                 && !strcmp(sru_rec->recordSchema,
4272                            "info:srw/schema/1/diagnostics-v1.1"))
4273             {
4274                 sru_decode_surrogate_diagnostics(sru_rec->recordData_buf,
4275                                                  sru_rec->recordData_len,
4276                                                  &diag, &num_diag,
4277                                                  resultset->odr);
4278             }
4279             record_cache_add(resultset, npr, pos, syntax, elementSetName,
4280                              sru_rec->recordSchema, diag);
4281         }
4282         *count -= i;
4283         *start += i;
4284         if (*count + *start > resultset->size)
4285             *count = resultset->size - *start;
4286         if (*count < 0)
4287             *count = 0;
4288
4289         nmem = odr_extract_mem(c->odr_in);
4290         nmem_transfer(odr_getmem(resultset->odr), nmem);
4291         nmem_destroy(nmem);
4292
4293         if (*count > 0)
4294             return ZOOM_connection_srw_send_search(c);
4295     }
4296     return zoom_complete;
4297 }
4298 #endif
4299
4300 #if YAZ_HAVE_XML2
4301 static void handle_srw_scan_response(ZOOM_connection c,
4302                                      Z_SRW_scanResponse *res)
4303 {
4304     NMEM nmem = odr_extract_mem(c->odr_in);
4305     ZOOM_scanset scan;
4306
4307     if (!c->tasks || c->tasks->which != ZOOM_TASK_SCAN)
4308         return;
4309     scan = c->tasks->u.scan.scan;
4310
4311     if (res->num_diagnostics > 0)
4312         set_SRU_error(c, &res->diagnostics[0]);
4313
4314     scan->scan_response = 0;
4315     scan->srw_scan_response = res;
4316     nmem_transfer(odr_getmem(scan->odr), nmem);
4317
4318     ZOOM_options_set_int(scan->options, "number", res->num_terms);
4319     nmem_destroy(nmem);
4320 }
4321 #endif
4322
4323 #if YAZ_HAVE_XML2
4324 static Z_GDU *get_HTTP_Request_url(ODR odr, const char *url)
4325 {
4326     Z_GDU *p = z_get_HTTP_Request(odr);
4327     const char *host = url;
4328     const char *cp0 = strstr(host, "://");
4329     const char *cp1 = 0;
4330     if (cp0)
4331         cp0 = cp0+3;
4332     else
4333         cp0 = host;
4334
4335     cp1 = strchr(cp0, '/');
4336     if (!cp1)
4337         cp1 = cp0 + strlen(cp0);
4338
4339     if (cp0 && cp1)
4340     {
4341         char *h = (char*) odr_malloc(odr, cp1 - cp0 + 1);
4342         memcpy (h, cp0, cp1 - cp0);
4343         h[cp1-cp0] = '\0';
4344         z_HTTP_header_add(odr, &p->u.HTTP_Request->headers, "Host", h);
4345     }
4346     p->u.HTTP_Request->path = odr_strdup(odr, *cp1 ? cp1 : "/");
4347     return p;
4348 }
4349
4350 static zoom_ret send_SRW_redirect(ZOOM_connection c, const char *uri,
4351                                   Z_HTTP_Response *cookie_hres)
4352 {
4353     struct Z_HTTP_Header *h;
4354     Z_GDU *gdu = get_HTTP_Request_url(c->odr_out, uri);
4355     char *combined_cookies;
4356     int combined_cookies_len = 0;
4357
4358     gdu->u.HTTP_Request->method = odr_strdup(c->odr_out, "GET");
4359     z_HTTP_header_add(c->odr_out, &gdu->u.HTTP_Request->headers, "Accept",
4360                       "text/xml");
4361
4362     for (h = cookie_hres->headers; h; h = h->next)
4363     {
4364         if (!strcmp(h->name, "Set-Cookie"))
4365         {
4366             char *cp;
4367
4368             if (!(cp = strchr(h->value, ';')))
4369                 cp = h->value + strlen(h->value);
4370             if (cp - h->value >= 1) {
4371                 combined_cookies = xrealloc(combined_cookies, combined_cookies_len + cp - h->value + 3);
4372                 memcpy(combined_cookies+combined_cookies_len, h->value, cp - h->value);
4373                 combined_cookies[combined_cookies_len + cp - h->value] = '\0';
4374                 strcat(combined_cookies,"; ");
4375                 combined_cookies_len = strlen(combined_cookies);
4376             }
4377         }
4378     }
4379
4380     if (combined_cookies_len)
4381     {
4382         z_HTTP_header_add(c->odr_out, &gdu->u.HTTP_Request->headers,
4383                           "Cookie", combined_cookies);
4384         xfree(combined_cookies);
4385     }
4386
4387     if (c->user && c->password)
4388     {
4389         z_HTTP_header_add_basic_auth(c->odr_out, &gdu->u.HTTP_Request->headers,
4390                                      c->user, c->password);
4391     }
4392     if (!z_GDU(c->odr_out, &gdu, 0, 0))
4393         return zoom_complete;
4394     if (c->odr_print)
4395         z_GDU(c->odr_print, &gdu, 0, 0);
4396     c->buf_out = odr_getbuf(c->odr_out, &c->len_out, 0);
4397
4398     odr_reset(c->odr_out);
4399     return do_write(c);
4400 }
4401
4402 static void handle_http(ZOOM_connection c, Z_HTTP_Response *hres)
4403 {
4404     zoom_ret cret = zoom_complete;
4405     int ret = -1;
4406     const char *addinfo = 0;
4407     const char *connection_head = z_HTTP_header_lookup(hres->headers,
4408                                                        "Connection");
4409     const char *location;
4410
4411     ZOOM_connection_set_mask(c, 0);
4412     yaz_log(log_details, "%p handle_http", c);
4413
4414     if ((hres->code == 301 || hres->code == 302) && c->sru_mode == zoom_sru_get
4415         && (location = z_HTTP_header_lookup(hres->headers, "Location")))
4416     {
4417         c->no_redirects++;
4418         if (c->no_redirects > 10)
4419         {
4420             set_HTTP_error(c, hres->code, 0, 0);
4421             c->no_redirects = 0;
4422             do_close(c);
4423         }
4424         else
4425         {
4426             /* since redirect may change host we just reconnect. A smarter
4427                implementation might check whether it's the same server */
4428             do_connect_host(c, location, 0);
4429             send_SRW_redirect(c, location, hres);
4430             /* we're OK for now. Operation is not really complete */
4431             ret = 0;
4432             cret = zoom_pending;
4433         }
4434     }
4435     else
4436     {   /* not redirect (normal response) */
4437         if (!yaz_srw_check_content_type(hres))
4438             addinfo = "content-type";
4439         else
4440         {
4441             Z_SOAP *soap_package = 0;
4442             ODR o = c->odr_in;
4443             Z_SOAP_Handler soap_handlers[2] = {
4444                 {YAZ_XMLNS_SRU_v1_1, 0, (Z_SOAP_fun) yaz_srw_codec},
4445                 {0, 0, 0}
4446             };
4447             ret = z_soap_codec(o, &soap_package,
4448                                &hres->content_buf, &hres->content_len,
4449                                soap_handlers);
4450             if (!ret && soap_package->which == Z_SOAP_generic &&
4451                 soap_package->u.generic->no == 0)
4452             {
4453                 Z_SRW_PDU *sr = (Z_SRW_PDU*) soap_package->u.generic->p;
4454
4455                 ZOOM_options_set(c->options, "sru_version", sr->srw_version);
4456                 ZOOM_options_setl(c->options, "sru_extra_response_data",
4457                                   sr->extraResponseData_buf, sr->extraResponseData_len);
4458                 if (sr->which == Z_SRW_searchRetrieve_response)
4459                     cret = handle_srw_response(c, sr->u.response);
4460                 else if (sr->which == Z_SRW_scan_response)
4461                     handle_srw_scan_response(c, sr->u.scan_response);
4462                 else
4463                     ret = -1;
4464             }
4465             else if (!ret && (soap_package->which == Z_SOAP_fault
4466                               || soap_package->which == Z_SOAP_error))
4467             {
4468                 set_HTTP_error(c, hres->code,
4469                                soap_package->u.fault->fault_code,
4470                                soap_package->u.fault->fault_string);
4471             }
4472             else
4473                 ret = -1;
4474         }
4475         if (ret == 0)
4476         {
4477             if (c->no_redirects) /* end of redirect. change hosts again */
4478                 do_close(c);
4479         }
4480         c->no_redirects = 0;
4481     }
4482     if (ret)
4483     {
4484         if (hres->code != 200)
4485             set_HTTP_error(c, hres->code, 0, 0);
4486         else
4487             set_ZOOM_error(c, ZOOM_ERROR_DECODE, addinfo);
4488         do_close(c);
4489     }
4490     if (cret == zoom_complete)
4491     {
4492         yaz_log(YLOG_LOG, "removing tasks in handle_http");
4493         ZOOM_connection_remove_task(c);
4494     }
4495     {
4496         int must_close = 0;
4497         if (!strcmp(hres->version, "1.0"))
4498         {
4499             /* HTTP 1.0: only if Keep-Alive we stay alive.. */
4500             if (!connection_head || strcmp(connection_head, "Keep-Alive"))
4501                 must_close = 1;
4502         }
4503         else
4504         {
4505             /* HTTP 1.1: only if no close we stay alive.. */
4506             if (connection_head && !strcmp(connection_head, "close"))
4507                 must_close = 1;
4508         }
4509         if (must_close)
4510         {
4511             do_close(c);
4512             if (c->tasks)
4513             {
4514                 c->tasks->running = 0;
4515                 ZOOM_connection_insert_task(c, ZOOM_TASK_CONNECT);
4516                 c->reconnect_ok = 0;
4517             }
4518         }
4519     }
4520 }
4521 #endif
4522
4523 static int do_read(ZOOM_connection c)
4524 {
4525     int r, more;
4526     ZOOM_Event event;
4527
4528     event = ZOOM_Event_create(ZOOM_EVENT_RECV_DATA);
4529     ZOOM_connection_put_event(c, event);
4530
4531     r = cs_get(c->cs, &c->buf_in, &c->len_in);
4532     more = cs_more(c->cs);
4533     yaz_log(log_details, "%p do_read len=%d more=%d", c, r, more);
4534     if (r == 1)
4535         return 0;
4536     if (r <= 0)
4537     {
4538         if (!ZOOM_test_reconnect(c))
4539         {
4540             set_ZOOM_error(c, ZOOM_ERROR_CONNECTION_LOST, c->host_port);
4541             do_close(c);
4542         }
4543     }
4544     else
4545     {
4546         Z_GDU *gdu;
4547         ZOOM_Event event;
4548
4549         odr_reset(c->odr_in);
4550         odr_setbuf(c->odr_in, c->buf_in, r, 0);
4551         event = ZOOM_Event_create(ZOOM_EVENT_RECV_APDU);
4552         ZOOM_connection_put_event(c, event);
4553
4554         if (!z_GDU(c->odr_in, &gdu, 0, 0))
4555         {
4556             int x;
4557             int err = odr_geterrorx(c->odr_in, &x);
4558             char msg[100];
4559             const char *element = odr_getelement(c->odr_in);
4560             yaz_snprintf(msg, sizeof(msg),
4561                     "ODR code %d:%d element=%s offset=%d",
4562                     err, x, element ? element : "<unknown>",
4563                     odr_offset(c->odr_in));
4564             set_ZOOM_error(c, ZOOM_ERROR_DECODE, msg);
4565             if (log_api)
4566             {
4567                 FILE *ber_file = yaz_log_file();
4568                 if (ber_file)
4569                     odr_dumpBER(ber_file, c->buf_in, r);
4570             }
4571             do_close(c);
4572         }
4573         else
4574         {
4575             if (c->odr_print)
4576                 z_GDU(c->odr_print, &gdu, 0, 0);
4577             if (gdu->which == Z_GDU_Z3950)
4578                 recv_apdu(c, gdu->u.z3950);
4579             else if (gdu->which == Z_GDU_HTTP_Response)
4580             {
4581 #if YAZ_HAVE_XML2
4582                 handle_http(c, gdu->u.HTTP_Response);
4583 #else
4584                 set_ZOOM_error(c, ZOOM_ERROR_DECODE, 0);
4585                 do_close(c);
4586 #endif
4587             }
4588         }
4589         c->reconnect_ok = 0;
4590     }
4591     return 1;
4592 }
4593
4594 static zoom_ret do_write_ex(ZOOM_connection c, char *buf_out, int len_out)
4595 {
4596     int r;
4597     ZOOM_Event event;
4598
4599     event = ZOOM_Event_create(ZOOM_EVENT_SEND_DATA);
4600     ZOOM_connection_put_event(c, event);
4601
4602     yaz_log(log_details, "%p do_write_ex len=%d", c, len_out);
4603     if ((r = cs_put(c->cs, buf_out, len_out)) < 0)
4604     {
4605         yaz_log(log_details, "%p do_write_ex write failed", c);
4606         if (ZOOM_test_reconnect(c))
4607         {
4608             return zoom_pending;
4609         }
4610         if (c->state == STATE_CONNECTING)
4611             set_ZOOM_error(c, ZOOM_ERROR_CONNECT, c->host_port);
4612         else
4613             set_ZOOM_error(c, ZOOM_ERROR_CONNECTION_LOST, c->host_port);
4614         do_close(c);
4615         return zoom_complete;
4616     }
4617     else if (r == 1)
4618     {
4619         int mask = ZOOM_SELECT_EXCEPT;
4620         if (c->cs->io_pending & CS_WANT_WRITE)
4621             mask += ZOOM_SELECT_WRITE;
4622         if (c->cs->io_pending & CS_WANT_READ)
4623             mask += ZOOM_SELECT_READ;
4624         ZOOM_connection_set_mask(c, mask);
4625         yaz_log(log_details, "%p do_write_ex write incomplete mask=%d",
4626                 c, c->mask);
4627     }
4628     else
4629     {
4630         ZOOM_connection_set_mask(c, ZOOM_SELECT_READ|ZOOM_SELECT_EXCEPT);
4631         yaz_log(log_details, "%p do_write_ex write complete mask=%d",
4632                 c, c->mask);
4633     }
4634     return zoom_pending;
4635 }
4636
4637 static zoom_ret do_write(ZOOM_connection c)
4638 {
4639     return do_write_ex(c, c->buf_out, c->len_out);
4640 }
4641
4642
4643 ZOOM_API(const char *)
4644     ZOOM_connection_option_get(ZOOM_connection c, const char *key)
4645 {
4646     return ZOOM_options_get(c->options, key);
4647 }
4648
4649 ZOOM_API(const char *)
4650     ZOOM_connection_option_getl(ZOOM_connection c, const char *key, int *lenp)
4651 {
4652     return ZOOM_options_getl(c->options, key, lenp);
4653 }
4654
4655 ZOOM_API(void)
4656     ZOOM_connection_option_set(ZOOM_connection c, const char *key,
4657                                const char *val)
4658 {
4659     ZOOM_options_set(c->options, key, val);
4660 }
4661
4662 ZOOM_API(void)
4663     ZOOM_connection_option_setl(ZOOM_connection c, const char *key,
4664                                 const char *val, int len)
4665 {
4666     ZOOM_options_setl(c->options, key, val, len);
4667 }
4668
4669 ZOOM_API(const char *)
4670     ZOOM_resultset_option_get(ZOOM_resultset r, const char *key)
4671 {
4672     return ZOOM_options_get(r->options, key);
4673 }
4674
4675 ZOOM_API(void)
4676     ZOOM_resultset_option_set(ZOOM_resultset r, const char *key,
4677                               const char *val)
4678 {
4679     ZOOM_options_set(r->options, key, val);
4680 }
4681
4682
4683 ZOOM_API(int)
4684     ZOOM_connection_errcode(ZOOM_connection c)
4685 {
4686     return ZOOM_connection_error(c, 0, 0);
4687 }
4688
4689 ZOOM_API(const char *)
4690     ZOOM_connection_errmsg(ZOOM_connection c)
4691 {
4692     const char *msg;
4693     ZOOM_connection_error(c, &msg, 0);
4694     return msg;
4695 }
4696
4697 ZOOM_API(const char *)
4698     ZOOM_connection_addinfo(ZOOM_connection c)
4699 {
4700     const char *addinfo;
4701     ZOOM_connection_error(c, 0, &addinfo);
4702     return addinfo;
4703 }
4704
4705 ZOOM_API(const char *)
4706     ZOOM_connection_diagset(ZOOM_connection c)
4707 {
4708     const char *diagset;
4709     ZOOM_connection_error_x(c, 0, 0, &diagset);
4710     return diagset;
4711 }
4712
4713 ZOOM_API(const char *)
4714     ZOOM_diag_str(int error)
4715 {
4716     switch (error)
4717     {
4718     case ZOOM_ERROR_NONE:
4719         return "No error";
4720     case ZOOM_ERROR_CONNECT:
4721         return "Connect failed";
4722     case ZOOM_ERROR_MEMORY:
4723         return "Out of memory";
4724     case ZOOM_ERROR_ENCODE:
4725         return "Encoding failed";
4726     case ZOOM_ERROR_DECODE:
4727         return "Decoding failed";
4728     case ZOOM_ERROR_CONNECTION_LOST:
4729         return "Connection lost";
4730     case ZOOM_ERROR_INIT:
4731         return "Init rejected";
4732     case ZOOM_ERROR_INTERNAL:
4733         return "Internal failure";
4734     case ZOOM_ERROR_TIMEOUT:
4735         return "Timeout";
4736     case ZOOM_ERROR_UNSUPPORTED_PROTOCOL:
4737         return "Unsupported protocol";
4738     case ZOOM_ERROR_UNSUPPORTED_QUERY:
4739         return "Unsupported query type";
4740     case ZOOM_ERROR_INVALID_QUERY:
4741         return "Invalid query";
4742     case ZOOM_ERROR_CQL_PARSE:
4743         return "CQL parsing error";
4744     case ZOOM_ERROR_CQL_TRANSFORM:
4745         return "CQL transformation error";
4746     case ZOOM_ERROR_CCL_CONFIG:
4747         return "CCL configuration error";
4748     case ZOOM_ERROR_CCL_PARSE:
4749         return "CCL parsing error";
4750     default:
4751         return diagbib1_str(error);
4752     }
4753 }
4754
4755 ZOOM_API(int)
4756     ZOOM_connection_error_x(ZOOM_connection c, const char **cp,
4757                             const char **addinfo, const char **diagset)
4758 {
4759     int error = c->error;
4760     if (cp)
4761     {
4762         if (!c->diagset || !strcmp(c->diagset, "ZOOM"))
4763             *cp = ZOOM_diag_str(error);
4764         else if (!strcmp(c->diagset, "HTTP"))
4765             *cp = z_HTTP_errmsg(c->error);
4766         else if (!strcmp(c->diagset, "Bib-1"))
4767             *cp = ZOOM_diag_str(error);
4768         else if (!strcmp(c->diagset, "info:srw/diagnostic/1"))
4769             *cp = yaz_diag_srw_str(c->error);
4770         else
4771             *cp = "Unknown error and diagnostic set";
4772     }
4773     if (addinfo)
4774         *addinfo = c->addinfo ? c->addinfo : "";
4775     if (diagset)
4776         *diagset = c->diagset ? c->diagset : "";
4777     return c->error;
4778 }
4779
4780 ZOOM_API(int)
4781     ZOOM_connection_error(ZOOM_connection c, const char **cp,
4782                           const char **addinfo)
4783 {
4784     return ZOOM_connection_error_x(c, cp, addinfo, 0);
4785 }
4786
4787 static void ZOOM_connection_do_io(ZOOM_connection c, int mask)
4788 {
4789     ZOOM_Event event = 0;
4790     int r = cs_look(c->cs);
4791     yaz_log(log_details, "%p ZOOM_connection_do_io mask=%d cs_look=%d",
4792             c, mask, r);
4793
4794     if (r == CS_NONE)
4795     {
4796         event = ZOOM_Event_create(ZOOM_EVENT_CONNECT);
4797         set_ZOOM_error(c, ZOOM_ERROR_CONNECT, c->host_port);
4798         do_close(c);
4799         ZOOM_connection_put_event(c, event);
4800     }
4801     else if (r == CS_CONNECT)
4802     {
4803         int ret = ret = cs_rcvconnect(c->cs);
4804         yaz_log(log_details, "%p ZOOM_connection_do_io "
4805                 "cs_rcvconnect returned %d", c, ret);
4806         if (ret == 1)
4807         {
4808             int mask = ZOOM_SELECT_EXCEPT;
4809             if (c->cs->io_pending & CS_WANT_WRITE)
4810                 mask += ZOOM_SELECT_WRITE;
4811             if (c->cs->io_pending & CS_WANT_READ)
4812                 mask += ZOOM_SELECT_READ;
4813             ZOOM_connection_set_mask(c, mask);
4814             event = ZOOM_Event_create(ZOOM_EVENT_NONE);
4815             ZOOM_connection_put_event(c, event);
4816         }
4817         else if (ret == 0)
4818         {
4819             event = ZOOM_Event_create(ZOOM_EVENT_CONNECT);
4820             ZOOM_connection_put_event(c, event);
4821             get_cert(c);
4822             if (c->proto == PROTO_Z3950)
4823                 ZOOM_connection_send_init(c);
4824             else
4825             {
4826                 /* no init request for SRW .. */
4827                 assert(c->tasks->which == ZOOM_TASK_CONNECT);
4828                 ZOOM_connection_remove_task(c);
4829                 ZOOM_connection_set_mask(c, 0);
4830                 ZOOM_connection_exec_task(c);
4831             }
4832             c->state = STATE_ESTABLISHED;
4833         }
4834         else
4835         {
4836             set_ZOOM_error(c, ZOOM_ERROR_CONNECT, c->host_port);
4837             do_close(c);
4838         }
4839     }
4840     else
4841     {
4842         if (mask & ZOOM_SELECT_EXCEPT)
4843         {
4844             if (!ZOOM_test_reconnect(c))
4845             {
4846                 set_ZOOM_error(c, ZOOM_ERROR_CONNECTION_LOST, c->host_port);
4847                 do_close(c);
4848             }
4849             return;
4850         }
4851         if (mask & ZOOM_SELECT_READ)
4852             do_read(c);
4853         if (c->cs && (mask & ZOOM_SELECT_WRITE))
4854             do_write(c);
4855     }
4856 }
4857
4858 ZOOM_API(int)
4859     ZOOM_connection_last_event(ZOOM_connection cs)
4860 {
4861     if (!cs)
4862         return ZOOM_EVENT_NONE;
4863     return cs->last_event;
4864 }
4865
4866
4867 static void cql2pqf_wrbuf_puts(const char *buf, void *client_data)
4868 {
4869     WRBUF wrbuf = (WRBUF) client_data;
4870     wrbuf_puts(wrbuf, buf);
4871 }
4872
4873 /*
4874  * Returns an xmalloc()d string containing RPN that corresponds to the
4875  * CQL passed in.  On error, sets the Connection object's error state
4876  * and returns a null pointer.
4877  * ### We could cache CQL parser and/or transformer in Connection.
4878  */
4879 static char *cql2pqf(ZOOM_connection c, const char *cql)
4880 {
4881     CQL_parser parser;
4882     int error;
4883     const char *cqlfile;
4884     cql_transform_t trans;
4885     char *result = 0;
4886
4887     parser = cql_parser_create();
4888     if ((error = cql_parser_string(parser, cql)) != 0) {
4889         cql_parser_destroy(parser);
4890         set_ZOOM_error(c, ZOOM_ERROR_CQL_PARSE, cql);
4891         return 0;
4892     }
4893
4894     cqlfile = ZOOM_connection_option_get(c, "cqlfile");
4895     if (cqlfile == 0)
4896     {
4897         set_ZOOM_error(c, ZOOM_ERROR_CQL_TRANSFORM, "no CQL transform file");
4898     }
4899     else if ((trans = cql_transform_open_fname(cqlfile)) == 0)
4900     {
4901         char buf[512];
4902         sprintf(buf, "can't open CQL transform file '%.200s': %.200s",
4903                 cqlfile, strerror(errno));
4904         set_ZOOM_error(c, ZOOM_ERROR_CQL_TRANSFORM, buf);
4905     }
4906     else
4907     {
4908         WRBUF wrbuf_result = wrbuf_alloc();
4909         error = cql_transform(trans, cql_parser_result(parser),
4910                               cql2pqf_wrbuf_puts, wrbuf_result);
4911         if (error != 0) {
4912             char buf[512];
4913             const char *addinfo;
4914             error = cql_transform_error(trans, &addinfo);
4915             sprintf(buf, "%.200s (addinfo=%.200s)",
4916                     cql_strerror(error), addinfo);
4917             set_ZOOM_error(c, ZOOM_ERROR_CQL_TRANSFORM, buf);
4918         }
4919         else
4920         {
4921             result = xstrdup(wrbuf_cstr(wrbuf_result));
4922         }
4923         cql_transform_close(trans);
4924         wrbuf_destroy(wrbuf_result);
4925     }
4926     cql_parser_destroy(parser);
4927     return result;
4928 }
4929
4930 ZOOM_API(int) ZOOM_connection_fire_event_timeout(ZOOM_connection c)
4931 {
4932     if (c->mask)
4933     {
4934         ZOOM_Event event = ZOOM_Event_create(ZOOM_EVENT_TIMEOUT);
4935         /* timeout and this connection was waiting */
4936         set_ZOOM_error(c, ZOOM_ERROR_TIMEOUT, 0);
4937         do_close(c);
4938         ZOOM_connection_put_event(c, event);
4939     }
4940     return 0;
4941 }
4942
4943 ZOOM_API(int)
4944     ZOOM_connection_process(ZOOM_connection c)
4945 {
4946     ZOOM_Event event;
4947     if (!c)
4948         return 0;
4949
4950     event = ZOOM_connection_get_event(c);
4951     if (event)
4952     {
4953         ZOOM_Event_destroy(event);
4954         return 1;
4955     }
4956     ZOOM_connection_exec_task(c);
4957     event = ZOOM_connection_get_event(c);
4958     if (event)
4959     {
4960         ZOOM_Event_destroy(event);
4961         return 1;
4962     }
4963     return 0;
4964 }
4965
4966 ZOOM_API(int)
4967     ZOOM_event_nonblock(int no, ZOOM_connection *cs)
4968 {
4969     int i;
4970
4971     yaz_log(log_details, "ZOOM_process_event(no=%d,cs=%p)", no, cs);
4972
4973     for (i = 0; i<no; i++)
4974     {
4975         ZOOM_connection c = cs[i];
4976
4977         if (c && ZOOM_connection_process(c))
4978             return i+1;
4979     }
4980     return 0;
4981 }
4982
4983 ZOOM_API(int) ZOOM_connection_fire_event_socket(ZOOM_connection c, int mask)
4984 {
4985     if (c->mask && mask)
4986         ZOOM_connection_do_io(c, mask);
4987     return 0;
4988 }
4989
4990 ZOOM_API(int) ZOOM_connection_get_socket(ZOOM_connection c)
4991 {
4992     if (c->cs)
4993         return cs_fileno(c->cs);
4994     return -1;
4995 }
4996
4997 ZOOM_API(int) ZOOM_connection_set_mask(ZOOM_connection c, int mask)
4998 {
4999     c->mask = mask;
5000     if (!c->cs)
5001         return -1;
5002     return 0;
5003 }
5004
5005 ZOOM_API(int) ZOOM_connection_get_mask(ZOOM_connection c)
5006 {
5007     if (c->cs)
5008         return c->mask;
5009     return 0;
5010 }
5011
5012 ZOOM_API(int) ZOOM_connection_get_timeout(ZOOM_connection c)
5013 {
5014     return ZOOM_options_get_int(c->options, "timeout", 30);
5015 }
5016
5017 ZOOM_API(void) ZOOM_connection_close(ZOOM_connection c)
5018 {
5019     do_close(c);
5020 }
5021
5022 /*
5023  * Local variables:
5024  * c-basic-offset: 4
5025  * c-file-style: "Stroustrup"
5026  * indent-tabs-mode: nil
5027  * End:
5028  * vim: shiftwidth=4 tabstop=8 expandtab
5029  */
5030