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 ZOOM_API(ZOOM_facet_field)
1266     ZOOM_resultset_get_facet_field(ZOOM_resultset r, const char *name) {
1267     int num = r->num_facets;
1268     ZOOM_facet_field *facets = r->facets;
1269     int index;
1270     for (index = 0; index < num; index++) {
1271         if (!strcmp(facets[index]->facet_name, name)) {
1272             return facets[index];
1273         }
1274     }
1275     return 0;
1276 }
1277
1278
1279 ZOOM_API(ZOOM_facet_field *)
1280     ZOOM_resultset_facets(ZOOM_resultset r)
1281 {
1282     return r->facets;
1283 }
1284
1285 ZOOM_API(const char**)
1286     ZOOM_resultset_facet_names(ZOOM_resultset r)
1287 {
1288     return (const char **) r->facets_names;
1289 }
1290
1291 ZOOM_API(const char*)
1292     ZOOM_facet_field_name(ZOOM_facet_field field)
1293 {
1294     return field->facet_name;
1295 }
1296
1297 ZOOM_API(size_t)
1298     ZOOM_facet_field_term_count(ZOOM_facet_field field)
1299 {
1300     return field->num_terms;
1301 }
1302
1303 ZOOM_API(const char*)
1304     ZOOM_facet_field_get_term(ZOOM_facet_field field, size_t idx, int *freq) {
1305     *freq = field->facet_terms[idx].frequency;
1306     return field->facet_terms[idx].term;
1307 }
1308
1309
1310 static void get_cert(ZOOM_connection c)
1311 {
1312     char *cert_buf;
1313     int cert_len;
1314
1315     if (cs_get_peer_certificate_x509(c->cs, &cert_buf, &cert_len))
1316     {
1317         ZOOM_connection_option_setl(c, "sslPeerCert",
1318                                     cert_buf, cert_len);
1319         xfree(cert_buf);
1320     }
1321 }
1322
1323 static zoom_ret do_connect_host(ZOOM_connection c,
1324                                 const char *effective_host,
1325                                 const char *logical_url);
1326
1327 static zoom_ret do_connect(ZOOM_connection c)
1328 {
1329     const char *effective_host;
1330
1331     if (c->proxy)
1332         effective_host = c->proxy;
1333     else
1334         effective_host = c->host_port;
1335     return do_connect_host(c, effective_host, c->host_port);
1336 }
1337
1338 static zoom_ret do_connect_host(ZOOM_connection c, const char *effective_host,
1339     const char *logical_url)
1340 {
1341     void *add;
1342
1343     yaz_log(log_details, "%p do_connect effective_host=%s", c, effective_host);
1344
1345     if (c->cs)
1346         cs_close(c->cs);
1347     c->cs = cs_create_host(effective_host, 0, &add);
1348
1349     if (c->cs && c->cs->protocol == PROTO_HTTP)
1350     {
1351 #if YAZ_HAVE_XML2
1352         if (logical_url)
1353         {
1354             const char *db = 0;
1355
1356             c->proto = PROTO_HTTP;
1357             cs_get_host_args(logical_url, &db);
1358             xfree(c->path);
1359
1360             c->path = xmalloc(strlen(db) * 3 + 2);
1361             yaz_encode_sru_dbpath_buf(c->path, db);
1362         }
1363 #else
1364         set_ZOOM_error(c, ZOOM_ERROR_UNSUPPORTED_PROTOCOL, "SRW");
1365         do_close(c);
1366         return zoom_complete;
1367 #endif
1368     }
1369     if (c->cs)
1370     {
1371         int ret = cs_connect(c->cs, add);
1372         if (ret == 0)
1373         {
1374             ZOOM_Event event = ZOOM_Event_create(ZOOM_EVENT_CONNECT);
1375             ZOOM_connection_put_event(c, event);
1376             get_cert(c);
1377             if (c->proto == PROTO_Z3950)
1378                 ZOOM_connection_send_init(c);
1379             else
1380             {
1381                 /* no init request for SRW .. */
1382                 assert(c->tasks->which == ZOOM_TASK_CONNECT);
1383                 ZOOM_connection_remove_task(c);
1384                 ZOOM_connection_set_mask(c, 0);
1385                 ZOOM_connection_exec_task(c);
1386             }
1387             c->state = STATE_ESTABLISHED;
1388             return zoom_pending;
1389         }
1390         else if (ret > 0)
1391         {
1392             int mask = ZOOM_SELECT_EXCEPT;
1393             if (c->cs->io_pending & CS_WANT_WRITE)
1394                 mask += ZOOM_SELECT_WRITE;
1395             if (c->cs->io_pending & CS_WANT_READ)
1396                 mask += ZOOM_SELECT_READ;
1397             ZOOM_connection_set_mask(c, mask);
1398             c->state = STATE_CONNECTING;
1399             return zoom_pending;
1400         }
1401     }
1402     c->state = STATE_IDLE;
1403     set_ZOOM_error(c, ZOOM_ERROR_CONNECT, logical_url);
1404     return zoom_complete;
1405 }
1406
1407 static void otherInfo_attach(ZOOM_connection c, Z_APDU *a, ODR out)
1408 {
1409     int i;
1410     for (i = 0; i<200; i++)
1411     {
1412         size_t len;
1413         Odr_oid *oid;
1414         Z_OtherInformation **oi;
1415         char buf[80];
1416         const char *val;
1417         const char *cp;
1418
1419         sprintf(buf, "otherInfo%d", i);
1420         val = ZOOM_options_get(c->options, buf);
1421         if (!val)
1422             break;
1423         cp = strchr(val, ':');
1424         if (!cp)
1425             continue;
1426         len = cp - val;
1427         if (len >= sizeof(buf))
1428             len = sizeof(buf)-1;
1429         memcpy(buf, val, len);
1430         buf[len] = '\0';
1431
1432         oid = yaz_string_to_oid_odr(yaz_oid_std(), CLASS_USERINFO,
1433                                     buf, out);
1434         if (!oid)
1435             continue;
1436
1437         yaz_oi_APDU(a, &oi);
1438         yaz_oi_set_string_oid(oi, out, oid, 1, cp+1);
1439     }
1440 }
1441
1442 static int encode_APDU(ZOOM_connection c, Z_APDU *a, ODR out)
1443 {
1444     assert(a);
1445     if (c->cookie_out)
1446     {
1447         Z_OtherInformation **oi;
1448         yaz_oi_APDU(a, &oi);
1449         yaz_oi_set_string_oid(oi, out, yaz_oid_userinfo_cookie,
1450                               1, c->cookie_out);
1451     }
1452     if (c->client_IP)
1453     {
1454         Z_OtherInformation **oi;
1455         yaz_oi_APDU(a, &oi);
1456         yaz_oi_set_string_oid(oi, out, yaz_oid_userinfo_client_ip,
1457                               1, c->client_IP);
1458     }
1459     otherInfo_attach(c, a, out);
1460     if (!z_APDU(out, &a, 0, 0))
1461     {
1462         FILE *outf = fopen("/tmp/apdu.txt", "a");
1463         if (a && outf)
1464         {
1465             ODR odr_pr = odr_createmem(ODR_PRINT);
1466             fprintf(outf, "a=%p\n", a);
1467             odr_setprint(odr_pr, outf);
1468             z_APDU(odr_pr, &a, 0, 0);
1469             odr_destroy(odr_pr);
1470         }
1471         yaz_log(log_api, "%p encoding_APDU: encoding failed", c);
1472         set_ZOOM_error(c, ZOOM_ERROR_ENCODE, 0);
1473         odr_reset(out);
1474         return -1;
1475     }
1476     if (c->odr_print)
1477         z_APDU(c->odr_print, &a, 0, 0);
1478     yaz_log(log_details, "%p encoding_APDU encoding OK", c);
1479     return 0;
1480 }
1481
1482 static zoom_ret send_APDU(ZOOM_connection c, Z_APDU *a)
1483 {
1484     ZOOM_Event event;
1485     assert(a);
1486     if (encode_APDU(c, a, c->odr_out))
1487         return zoom_complete;
1488     yaz_log(log_details, "%p send APDU type=%d", c, a->which);
1489     c->buf_out = odr_getbuf(c->odr_out, &c->len_out, 0);
1490     event = ZOOM_Event_create(ZOOM_EVENT_SEND_APDU);
1491     ZOOM_connection_put_event(c, event);
1492     odr_reset(c->odr_out);
1493     return do_write(c);
1494 }
1495
1496 /* returns 1 if PDU was sent OK (still pending )
1497    0 if PDU was not sent OK (nothing to wait for)
1498 */
1499
1500 static zoom_ret ZOOM_connection_send_init(ZOOM_connection c)
1501 {
1502     Z_APDU *apdu = zget_APDU(c->odr_out, Z_APDU_initRequest);
1503     Z_InitRequest *ireq = apdu->u.initRequest;
1504     Z_IdAuthentication *auth = (Z_IdAuthentication *)
1505         odr_malloc(c->odr_out, sizeof(*auth));
1506
1507     ODR_MASK_SET(ireq->options, Z_Options_search);
1508     ODR_MASK_SET(ireq->options, Z_Options_present);
1509     ODR_MASK_SET(ireq->options, Z_Options_scan);
1510     ODR_MASK_SET(ireq->options, Z_Options_sort);
1511     ODR_MASK_SET(ireq->options, Z_Options_extendedServices);
1512     ODR_MASK_SET(ireq->options, Z_Options_namedResultSets);
1513
1514     ODR_MASK_SET(ireq->protocolVersion, Z_ProtocolVersion_1);
1515     ODR_MASK_SET(ireq->protocolVersion, Z_ProtocolVersion_2);
1516     ODR_MASK_SET(ireq->protocolVersion, Z_ProtocolVersion_3);
1517
1518     ireq->implementationId =
1519         odr_prepend(c->odr_out,
1520                     ZOOM_options_get(c->options, "implementationId"),
1521                     ireq->implementationId);
1522
1523     ireq->implementationName =
1524         odr_prepend(c->odr_out,
1525                     ZOOM_options_get(c->options, "implementationName"),
1526                     odr_prepend(c->odr_out, "ZOOM-C",
1527                                 ireq->implementationName));
1528
1529     ireq->implementationVersion =
1530         odr_prepend(c->odr_out,
1531                     ZOOM_options_get(c->options, "implementationVersion"),
1532                                 ireq->implementationVersion);
1533
1534     *ireq->maximumRecordSize = c->maximum_record_size;
1535     *ireq->preferredMessageSize = c->preferred_message_size;
1536
1537     if (c->group || c->password)
1538     {
1539         Z_IdPass *pass = (Z_IdPass *) odr_malloc(c->odr_out, sizeof(*pass));
1540         pass->groupId = odr_strdup_null(c->odr_out, c->group);
1541         pass->userId = odr_strdup_null(c->odr_out, c->user);
1542         pass->password = odr_strdup_null(c->odr_out, c->password);
1543         auth->which = Z_IdAuthentication_idPass;
1544         auth->u.idPass = pass;
1545         ireq->idAuthentication = auth;
1546     }
1547     else if (c->user)
1548     {
1549         auth->which = Z_IdAuthentication_open;
1550         auth->u.open = odr_strdup(c->odr_out, c->user);
1551         ireq->idAuthentication = auth;
1552     }
1553     if (c->proxy)
1554     {
1555         yaz_oi_set_string_oid(&ireq->otherInfo, c->odr_out,
1556                               yaz_oid_userinfo_proxy, 1, c->host_port);
1557     }
1558     if (c->charset || c->lang)
1559     {
1560         Z_OtherInformation **oi;
1561         Z_OtherInformationUnit *oi_unit;
1562
1563         yaz_oi_APDU(apdu, &oi);
1564
1565         if ((oi_unit = yaz_oi_update(oi, c->odr_out, NULL, 0, 0)))
1566         {
1567             ODR_MASK_SET(ireq->options, Z_Options_negotiationModel);
1568             oi_unit->which = Z_OtherInfo_externallyDefinedInfo;
1569             oi_unit->information.externallyDefinedInfo =
1570                 yaz_set_proposal_charneg_list(c->odr_out, " ",
1571                                               c->charset, c->lang, 1);
1572         }
1573     }
1574     assert(apdu);
1575     return send_APDU(c, apdu);
1576 }
1577
1578 #if YAZ_HAVE_XML2
1579 static zoom_ret send_srw(ZOOM_connection c, Z_SRW_PDU *sr)
1580 {
1581     Z_GDU *gdu;
1582     ZOOM_Event event;
1583     const char *database =  ZOOM_options_get(c->options, "databaseName");
1584     char *fdatabase = 0;
1585
1586     if (database)
1587         fdatabase = yaz_encode_sru_dbpath_odr(c->odr_out, database);
1588     gdu = z_get_HTTP_Request_host_path(c->odr_out, c->host_port,
1589                                        fdatabase ? fdatabase : c->path);
1590
1591     if (c->sru_mode == zoom_sru_get)
1592     {
1593         yaz_sru_get_encode(gdu->u.HTTP_Request, sr, c->odr_out, c->charset);
1594     }
1595     else if (c->sru_mode == zoom_sru_post)
1596     {
1597         yaz_sru_post_encode(gdu->u.HTTP_Request, sr, c->odr_out, c->charset);
1598     }
1599     else if (c->sru_mode == zoom_sru_soap)
1600     {
1601         yaz_sru_soap_encode(gdu->u.HTTP_Request, sr, c->odr_out, c->charset);
1602     }
1603     if (!z_GDU(c->odr_out, &gdu, 0, 0))
1604         return zoom_complete;
1605     if (c->odr_print)
1606         z_GDU(c->odr_print, &gdu, 0, 0);
1607     c->buf_out = odr_getbuf(c->odr_out, &c->len_out, 0);
1608
1609     event = ZOOM_Event_create(ZOOM_EVENT_SEND_APDU);
1610     ZOOM_connection_put_event(c, event);
1611     odr_reset(c->odr_out);
1612     return do_write(c);
1613 }
1614 #endif
1615
1616 #if YAZ_HAVE_XML2
1617 static Z_SRW_PDU *ZOOM_srw_get_pdu(ZOOM_connection c, int type)
1618 {
1619     Z_SRW_PDU *sr = yaz_srw_get_pdu(c->odr_out, type, c->sru_version);
1620     sr->username = c->user;
1621     sr->password = c->password;
1622     return sr;
1623 }
1624 #endif
1625
1626 #if YAZ_HAVE_XML2
1627 static zoom_ret ZOOM_connection_srw_send_search(ZOOM_connection c)
1628 {
1629     int i;
1630     int *start, *count;
1631     ZOOM_resultset resultset = 0;
1632     Z_SRW_PDU *sr = 0;
1633     const char *option_val = 0;
1634
1635     if (c->error)                  /* don't continue on error */
1636         return zoom_complete;
1637     assert(c->tasks);
1638     switch(c->tasks->which)
1639     {
1640     case ZOOM_TASK_SEARCH:
1641         resultset = c->tasks->u.search.resultset;
1642         if (!resultset->setname)
1643             resultset->setname = xstrdup("default");
1644         ZOOM_options_set(resultset->options, "setname", resultset->setname);
1645         start = &c->tasks->u.search.start;
1646         count = &c->tasks->u.search.count;
1647         break;
1648     case ZOOM_TASK_RETRIEVE:
1649         resultset = c->tasks->u.retrieve.resultset;
1650
1651         start = &c->tasks->u.retrieve.start;
1652         count = &c->tasks->u.retrieve.count;
1653
1654         if (*start >= resultset->size)
1655             return zoom_complete;
1656         if (*start + *count > resultset->size)
1657             *count = resultset->size - *start;
1658
1659         for (i = 0; i < *count; i++)
1660         {
1661             ZOOM_record rec =
1662                 record_cache_lookup(resultset, i + *start,
1663                                     c->tasks->u.retrieve.syntax,
1664                                     c->tasks->u.retrieve.elementSetName);
1665             if (!rec)
1666                 break;
1667             else
1668             {
1669                 ZOOM_Event event = ZOOM_Event_create(ZOOM_EVENT_RECV_RECORD);
1670                 ZOOM_connection_put_event(c, event);
1671             }
1672         }
1673         *start += i;
1674         *count -= i;
1675
1676         if (*count == 0)
1677             return zoom_complete;
1678         break;
1679     default:
1680         return zoom_complete;
1681     }
1682     assert(resultset->query);
1683
1684     sr = ZOOM_srw_get_pdu(c, Z_SRW_searchRetrieve_request);
1685     if (resultset->query->z_query->which == Z_Query_type_104
1686         && resultset->query->z_query->u.type_104->which == Z_External_CQL)
1687     {
1688         sr->u.request->query_type = Z_SRW_query_type_cql;
1689         sr->u.request->query.cql =resultset->query->z_query->u.type_104->u.cql;
1690     }
1691     else if (resultset->query->z_query->which == Z_Query_type_1 &&
1692              resultset->query->z_query->u.type_1)
1693     {
1694         sr->u.request->query_type = Z_SRW_query_type_pqf;
1695         sr->u.request->query.pqf = resultset->query->query_string;
1696     }
1697     else
1698     {
1699         set_ZOOM_error(c, ZOOM_ERROR_UNSUPPORTED_QUERY, 0);
1700         return zoom_complete;
1701     }
1702     sr->u.request->startRecord = odr_intdup(c->odr_out, *start + 1);
1703     sr->u.request->maximumRecords = odr_intdup(
1704         c->odr_out, (resultset->step > 0 && resultset->step < *count) ?
1705         resultset->step : *count);
1706     sr->u.request->recordSchema = resultset->schema;
1707
1708     option_val = ZOOM_resultset_option_get(resultset, "recordPacking");
1709     if (option_val)
1710         sr->u.request->recordPacking = odr_strdup(c->odr_out, option_val);
1711
1712     option_val = ZOOM_resultset_option_get(resultset, "extraArgs");
1713     yaz_encode_sru_extra(sr, c->odr_out, option_val);
1714     return send_srw(c, sr);
1715 }
1716 #else
1717 static zoom_ret ZOOM_connection_srw_send_search(ZOOM_connection c)
1718 {
1719     return zoom_complete;
1720 }
1721 #endif
1722
1723 static zoom_ret ZOOM_connection_send_search(ZOOM_connection c)
1724 {
1725     ZOOM_resultset r;
1726     int lslb, ssub, mspn;
1727     const char *syntax;
1728     Z_APDU *apdu = zget_APDU(c->odr_out, Z_APDU_searchRequest);
1729     Z_SearchRequest *search_req = apdu->u.searchRequest;
1730     const char *elementSetName;
1731     const char *smallSetElementSetName;
1732     const char *mediumSetElementSetName;
1733     const char *facets;
1734
1735     assert(c->tasks);
1736     assert(c->tasks->which == ZOOM_TASK_SEARCH);
1737
1738     r = c->tasks->u.search.resultset;
1739
1740     yaz_log(log_details, "%p ZOOM_connection_send_search set=%p", c, r);
1741
1742     elementSetName =
1743         ZOOM_options_get(r->options, "elementSetName");
1744     smallSetElementSetName  =
1745         ZOOM_options_get(r->options, "smallSetElementSetName");
1746     mediumSetElementSetName =
1747         ZOOM_options_get(r->options, "mediumSetElementSetName");
1748
1749     if (!smallSetElementSetName)
1750         smallSetElementSetName = elementSetName;
1751
1752     if (!mediumSetElementSetName)
1753         mediumSetElementSetName = elementSetName;
1754
1755     facets = ZOOM_options_get(r->options, "facets");
1756     if (facets) {
1757         Z_FacetList *facet_list = yaz_pqf_parse_facet_list(c->odr_out, facets);
1758         if (facet_list) {
1759             Z_OtherInformation **oi;
1760             yaz_oi_APDU(apdu, &oi);
1761             if (facet_list) {
1762                 yaz_oi_set_facetlist_oid(oi, c->odr_out, yaz_oid_userinfo_facet_1, 1, facet_list);
1763             }
1764         }
1765     }
1766
1767     assert(r);
1768     assert(r->query);
1769
1770     /* prepare query for the search request */
1771     search_req->query = r->query->z_query;
1772     if (!search_req->query)
1773     {
1774         set_ZOOM_error(c, ZOOM_ERROR_INVALID_QUERY, 0);
1775         return zoom_complete;
1776     }
1777     if (r->query->z_query->which == Z_Query_type_1 ||
1778         r->query->z_query->which == Z_Query_type_101)
1779     {
1780         const char *cp = ZOOM_options_get(r->options, "rpnCharset");
1781         if (cp)
1782         {
1783             yaz_iconv_t cd = yaz_iconv_open(cp, "UTF-8");
1784             if (cd)
1785             {
1786                 int r;
1787                 search_req->query = yaz_copy_Z_Query(search_req->query,
1788                                                      c->odr_out);
1789
1790                 r = yaz_query_charset_convert_rpnquery_check(
1791                     search_req->query->u.type_1,
1792                     c->odr_out, cd);
1793                 yaz_iconv_close(cd);
1794                 if (r)
1795                 {  /* query could not be char converted */
1796                     set_ZOOM_error(c, ZOOM_ERROR_INVALID_QUERY, 0);
1797                     return zoom_complete;
1798                 }
1799             }
1800         }
1801     }
1802     search_req->databaseNames = r->databaseNames;
1803     search_req->num_databaseNames = r->num_databaseNames;
1804
1805     /* get syntax (no need to provide unless piggyback is in effect) */
1806     syntax = c->tasks->u.search.syntax;
1807
1808     lslb = ZOOM_options_get_int(r->options, "largeSetLowerBound", -1);
1809     ssub = ZOOM_options_get_int(r->options, "smallSetUpperBound", -1);
1810     mspn = ZOOM_options_get_int(r->options, "mediumSetPresentNumber", -1);
1811     if (lslb != -1 && ssub != -1 && mspn != -1)
1812     {
1813         /* So're a Z39.50 expert? Let's hope you don't do sort */
1814         *search_req->largeSetLowerBound = lslb;
1815         *search_req->smallSetUpperBound = ssub;
1816         *search_req->mediumSetPresentNumber = mspn;
1817     }
1818     else if (c->tasks->u.search.start == 0 && c->tasks->u.search.count > 0
1819              && r->piggyback && !r->r_sort_spec && !r->schema)
1820     {
1821         /* Regular piggyback - do it unless we're going to do sort */
1822         *search_req->largeSetLowerBound = 2000000000;
1823         *search_req->smallSetUpperBound = 1;
1824         *search_req->mediumSetPresentNumber =
1825             r->step>0 ? r->step : c->tasks->u.search.count;
1826     }
1827     else
1828     {
1829         /* non-piggyback. Need not provide elementsets or syntaxes .. */
1830         smallSetElementSetName = 0;
1831         mediumSetElementSetName = 0;
1832         syntax = 0;
1833     }
1834     if (smallSetElementSetName && *smallSetElementSetName)
1835     {
1836         Z_ElementSetNames *esn = (Z_ElementSetNames *)
1837             odr_malloc(c->odr_out, sizeof(*esn));
1838
1839         esn->which = Z_ElementSetNames_generic;
1840         esn->u.generic = odr_strdup(c->odr_out, smallSetElementSetName);
1841         search_req->smallSetElementSetNames = esn;
1842     }
1843     if (mediumSetElementSetName && *mediumSetElementSetName)
1844     {
1845         Z_ElementSetNames *esn =(Z_ElementSetNames *)
1846             odr_malloc(c->odr_out, sizeof(*esn));
1847
1848         esn->which = Z_ElementSetNames_generic;
1849         esn->u.generic = odr_strdup(c->odr_out, mediumSetElementSetName);
1850         search_req->mediumSetElementSetNames = esn;
1851     }
1852     if (syntax)
1853         search_req->preferredRecordSyntax =
1854             zoom_yaz_str_to_z3950oid(c, CLASS_RECSYN, syntax);
1855
1856     if (!r->setname)
1857     {
1858         if (c->support_named_resultsets)
1859         {
1860             char setname[14];
1861             int ord;
1862             /* find the lowest unused ordinal so that we re-use
1863                result sets on the server. */
1864             for (ord = 1; ; ord++)
1865             {
1866 #if ZOOM_RESULT_LISTS
1867                 ZOOM_resultsets rsp;
1868                 sprintf(setname, "%d", ord);
1869                 for (rsp = c->resultsets; rsp; rsp = rsp->next)
1870                     if (rsp->resultset->setname && !strcmp(rsp->resultset->setname, setname))
1871                         break;
1872                 if (!rsp)
1873                     break;
1874 #else
1875                 ZOOM_resultset rp;
1876                 sprintf(setname, "%d", ord);
1877                 for (rp = c->resultsets; rp; rp = rp->next)
1878                     if (rp->setname && !strcmp(rp->setname, setname))
1879                         break;
1880                 if (!rp)
1881                     break;
1882 #endif
1883
1884             }
1885             r->setname = xstrdup(setname);
1886             yaz_log(log_details, "%p ZOOM_connection_send_search: allocating "
1887                     "set %s", c, r->setname);
1888         }
1889         else
1890         {
1891             yaz_log(log_details, "%p ZOOM_connection_send_search: using "
1892                     "default set", c);
1893             r->setname = xstrdup("default");
1894         }
1895         ZOOM_options_set(r->options, "setname", r->setname);
1896     }
1897     search_req->resultSetName = odr_strdup(c->odr_out, r->setname);
1898     return send_APDU(c, apdu);
1899 }
1900
1901 static void response_default_diag(ZOOM_connection c, Z_DefaultDiagFormat *r)
1902 {
1903     char oid_name_buf[OID_STR_MAX];
1904     const char *oid_name;
1905     char *addinfo = 0;
1906
1907     oid_name = yaz_oid_to_string_buf(r->diagnosticSetId, 0, oid_name_buf);
1908     switch (r->which)
1909     {
1910     case Z_DefaultDiagFormat_v2Addinfo:
1911         addinfo = r->u.v2Addinfo;
1912         break;
1913     case Z_DefaultDiagFormat_v3Addinfo:
1914         addinfo = r->u.v3Addinfo;
1915         break;
1916     }
1917     xfree(c->addinfo);
1918     c->addinfo = 0;
1919     set_dset_error(c, *r->condition, oid_name, addinfo, 0);
1920 }
1921
1922 static void response_diag(ZOOM_connection c, Z_DiagRec *p)
1923 {
1924     if (p->which != Z_DiagRec_defaultFormat)
1925         set_ZOOM_error(c, ZOOM_ERROR_DECODE, 0);
1926     else
1927         response_default_diag(c, p->u.defaultFormat);
1928 }
1929
1930 ZOOM_API(ZOOM_record)
1931     ZOOM_record_clone(ZOOM_record srec)
1932 {
1933     char *buf;
1934     int size;
1935     ODR odr_enc;
1936     ZOOM_record nrec;
1937
1938     odr_enc = odr_createmem(ODR_ENCODE);
1939     if (!z_NamePlusRecord(odr_enc, &srec->npr, 0, 0))
1940         return 0;
1941     buf = odr_getbuf(odr_enc, &size, 0);
1942
1943     nrec = (ZOOM_record) xmalloc(sizeof(*nrec));
1944     yaz_log(log_details, "ZOOM_record create");
1945     nrec->odr = odr_createmem(ODR_DECODE);
1946 #if SHPTR
1947     nrec->record_wrbuf = 0;
1948 #else
1949     nrec->wrbuf = 0;
1950 #endif
1951     odr_setbuf(nrec->odr, buf, size, 0);
1952     z_NamePlusRecord(nrec->odr, &nrec->npr, 0, 0);
1953
1954     nrec->schema = odr_strdup_null(nrec->odr, srec->schema);
1955     nrec->diag_uri = odr_strdup_null(nrec->odr, srec->diag_uri);
1956     nrec->diag_message = odr_strdup_null(nrec->odr, srec->diag_message);
1957     nrec->diag_details = odr_strdup_null(nrec->odr, srec->diag_details);
1958     nrec->diag_set = odr_strdup_null(nrec->odr, srec->diag_set);
1959     odr_destroy(odr_enc);
1960     return nrec;
1961 }
1962
1963 ZOOM_API(ZOOM_record)
1964     ZOOM_resultset_record_immediate(ZOOM_resultset s,size_t pos)
1965 {
1966     const char *syntax =
1967         ZOOM_options_get(s->options, "preferredRecordSyntax");
1968     const char *elementSetName =
1969         ZOOM_options_get(s->options, "elementSetName");
1970
1971     return record_cache_lookup(s, pos, syntax, elementSetName);
1972 }
1973
1974 ZOOM_API(ZOOM_record)
1975     ZOOM_resultset_record(ZOOM_resultset r, size_t pos)
1976 {
1977     ZOOM_record rec = ZOOM_resultset_record_immediate(r, pos);
1978
1979     if (!rec)
1980     {
1981         /*
1982          * MIKE: I think force_sync should always be zero, but I don't
1983          * want to make this change until I get the go-ahead from
1984          * Adam, in case something depends on the old synchronous
1985          * behaviour.
1986          */
1987         int force_sync = 1;
1988         if (getenv("ZOOM_RECORD_NO_FORCE_SYNC")) force_sync = 0;
1989         ZOOM_resultset_retrieve(r, force_sync, pos, 1);
1990         rec = ZOOM_resultset_record_immediate(r, pos);
1991     }
1992     return rec;
1993 }
1994
1995 ZOOM_API(void)
1996     ZOOM_record_destroy(ZOOM_record rec)
1997 {
1998     ZOOM_record_release(rec);
1999     yaz_log(log_details, "ZOOM_record destroy");
2000     xfree(rec);
2001 }
2002
2003
2004 static yaz_iconv_t iconv_create_charset(const char *record_charset)
2005 {
2006     char to[40];
2007     char from[40];
2008     yaz_iconv_t cd = 0;
2009
2010     *from = '\0';
2011     strcpy(to, "UTF-8");
2012     if (record_charset && *record_charset)
2013     {
2014         /* Use "from,to" or just "from" */
2015         const char *cp = strchr(record_charset, ',');
2016         size_t clen = strlen(record_charset);
2017         if (cp && cp[1])
2018         {
2019             strncpy( to, cp+1, sizeof(to)-1);
2020             to[sizeof(to)-1] = '\0';
2021             clen = cp - record_charset;
2022         }
2023         if (clen > sizeof(from)-1)
2024             clen = sizeof(from)-1;
2025
2026         if (clen)
2027             strncpy(from, record_charset, clen);
2028         from[clen] = '\0';
2029     }
2030     if (*from && *to)
2031         cd = yaz_iconv_open(to, from);
2032     return cd;
2033 }
2034
2035 static const char *return_marc_record(WRBUF wrbuf,
2036                                       int marc_type,
2037                                       int *len,
2038                                       const char *buf, int sz,
2039                                       const char *record_charset)
2040 {
2041     yaz_iconv_t cd = iconv_create_charset(record_charset);
2042     yaz_marc_t mt = yaz_marc_create();
2043     const char *ret_string = 0;
2044
2045     if (cd)
2046         yaz_marc_iconv(mt, cd);
2047     yaz_marc_xml(mt, marc_type);
2048     if (yaz_marc_decode_wrbuf(mt, buf, sz, wrbuf) > 0)
2049     {
2050         if (len)
2051             *len = wrbuf_len(wrbuf);
2052         ret_string = wrbuf_cstr(wrbuf);
2053     }
2054     yaz_marc_destroy(mt);
2055     if (cd)
2056         yaz_iconv_close(cd);
2057     return ret_string;
2058 }
2059
2060 static const char *return_opac_record(WRBUF wrbuf,
2061                                       int marc_type,
2062                                       int *len,
2063                                       Z_OPACRecord *opac_rec,
2064                                       const char *record_charset)
2065 {
2066     yaz_iconv_t cd = iconv_create_charset(record_charset);
2067     yaz_marc_t mt = yaz_marc_create();
2068
2069     if (cd)
2070         yaz_marc_iconv(mt, cd);
2071     yaz_marc_xml(mt, marc_type);
2072
2073     yaz_opac_decode_wrbuf(mt, opac_rec, wrbuf);
2074     yaz_marc_destroy(mt);
2075
2076     if (cd)
2077         yaz_iconv_close(cd);
2078     if (len)
2079         *len = wrbuf_len(wrbuf);
2080     return wrbuf_cstr(wrbuf);
2081 }
2082
2083 static const char *return_string_record(WRBUF wrbuf,
2084                                         int *len,
2085                                         const char *buf, int sz,
2086                                         const char *record_charset)
2087 {
2088     yaz_iconv_t cd = iconv_create_charset(record_charset);
2089
2090     if (cd)
2091     {
2092         wrbuf_iconv_write(wrbuf, cd, buf, sz);
2093         wrbuf_iconv_reset(wrbuf, cd);
2094
2095         buf = wrbuf_cstr(wrbuf);
2096         sz = wrbuf_len(wrbuf);
2097         yaz_iconv_close(cd);
2098     }
2099     if (len)
2100         *len = sz;
2101     return buf;
2102 }
2103
2104 static const char *return_record_wrbuf(WRBUF wrbuf, int *len,
2105                                        Z_NamePlusRecord *npr,
2106                                        int marctype, const char *charset)
2107 {
2108     Z_External *r = (Z_External *) npr->u.databaseRecord;
2109     const Odr_oid *oid = r->direct_reference;
2110
2111     wrbuf_rewind(wrbuf);
2112     /* render bibliographic record .. */
2113     if (r->which == Z_External_OPAC)
2114     {
2115         return return_opac_record(wrbuf, marctype, len,
2116                                   r->u.opac, charset);
2117     }
2118     if (r->which == Z_External_sutrs)
2119         return return_string_record(wrbuf, len,
2120                                     (char*) r->u.sutrs->buf,
2121                                     r->u.sutrs->len,
2122                                     charset);
2123     else if (r->which == Z_External_octet)
2124     {
2125         if (yaz_oid_is_iso2709(oid))
2126         {
2127             const char *ret_buf = return_marc_record(
2128                 wrbuf, marctype, len,
2129                 (const char *) r->u.octet_aligned->buf,
2130                 r->u.octet_aligned->len,
2131                 charset);
2132             if (ret_buf)
2133                 return ret_buf;
2134             /* bad ISO2709. Return fail unless raw (ISO2709) is wanted */
2135             if (marctype != YAZ_MARC_ISO2709)
2136                 return 0;
2137         }
2138         return return_string_record(wrbuf, len,
2139                                     (const char *) r->u.octet_aligned->buf,
2140                                     r->u.octet_aligned->len,
2141                                     charset);
2142     }
2143     else if (r->which == Z_External_grs1)
2144     {
2145         yaz_display_grs1(wrbuf, r->u.grs1, 0);
2146         return return_string_record(wrbuf, len,
2147                                     wrbuf_buf(wrbuf),
2148                                     wrbuf_len(wrbuf),
2149                                     charset);
2150     }
2151     return 0;
2152 }
2153
2154 ZOOM_API(int)
2155     ZOOM_record_error(ZOOM_record rec, const char **cp,
2156                       const char **addinfo, const char **diagset)
2157 {
2158     Z_NamePlusRecord *npr;
2159
2160     if (!rec)
2161         return 0;
2162
2163     npr = rec->npr;
2164     if (rec->diag_uri)
2165     {
2166         if (cp)
2167             *cp = rec->diag_message;
2168         if (addinfo)
2169             *addinfo = rec->diag_details;
2170         if (diagset)
2171             *diagset = rec->diag_set;
2172         return uri_to_code(rec->diag_uri);
2173     }
2174     if (npr && npr->which == Z_NamePlusRecord_surrogateDiagnostic)
2175     {
2176         Z_DiagRec *diag_rec = npr->u.surrogateDiagnostic;
2177         int error = YAZ_BIB1_UNSPECIFIED_ERROR;
2178         const char *add = 0;
2179
2180         if (diag_rec->which == Z_DiagRec_defaultFormat)
2181         {
2182             Z_DefaultDiagFormat *ddf = diag_rec->u.defaultFormat;
2183             oid_class oclass;
2184
2185             error = *ddf->condition;
2186             switch (ddf->which)
2187             {
2188             case Z_DefaultDiagFormat_v2Addinfo:
2189                 add = ddf->u.v2Addinfo;
2190                 break;
2191             case Z_DefaultDiagFormat_v3Addinfo:
2192                 add = ddf->u.v3Addinfo;
2193                 break;
2194             }
2195             if (diagset)
2196                 *diagset =
2197                     yaz_oid_to_string(yaz_oid_std(),
2198                                       ddf->diagnosticSetId, &oclass);
2199         }
2200         else
2201         {
2202             if (diagset)
2203                 *diagset = "Bib-1";
2204         }
2205         if (addinfo)
2206             *addinfo = add ? add : "";
2207         if (cp)
2208             *cp = diagbib1_str(error);
2209         return error;
2210     }
2211     return 0;
2212 }
2213
2214 static const char *get_record_format(WRBUF wrbuf, int *len,
2215                                      Z_NamePlusRecord *npr,
2216                                      int marctype, const char *charset,
2217                                      const char *format)
2218 {
2219     const char *res = return_record_wrbuf(wrbuf, len, npr, marctype, charset);
2220 #if YAZ_HAVE_XML2
2221     if (*format == '1' && len)
2222     {
2223         /* try to XML format res */
2224         xmlDocPtr doc;
2225         xmlKeepBlanksDefault(0); /* get get xmlDocFormatMemory to work! */
2226         doc = xmlParseMemory(res, *len);
2227         if (doc)
2228         {
2229             xmlChar *xml_mem;
2230             int xml_size;
2231             xmlDocDumpFormatMemory(doc, &xml_mem, &xml_size, 1);
2232             wrbuf_rewind(wrbuf);
2233             wrbuf_write(wrbuf, (const char *) xml_mem, xml_size);
2234             xmlFree(xml_mem);
2235             xmlFreeDoc(doc);
2236             res = wrbuf_cstr(wrbuf);
2237             *len = wrbuf_len(wrbuf);
2238         }
2239     }
2240 #endif
2241     return res;
2242 }
2243
2244
2245 static const char *npr_format(Z_NamePlusRecord *npr, const char *schema,
2246                               WRBUF wrbuf,
2247                               const char *type_spec, int *len)
2248 {
2249     size_t i;
2250     char type[40];
2251     char charset[40];
2252     char format[3];
2253     const char *cp = type_spec;
2254
2255     for (i = 0; cp[i] && cp[i] != ';' && cp[i] != ' ' && i < sizeof(type)-1;
2256          i++)
2257         type[i] = cp[i];
2258     type[i] = '\0';
2259     charset[0] = '\0';
2260     format[0] = '\0';
2261     while (1)
2262     {
2263         while (cp[i] == ' ')
2264             i++;
2265         if (cp[i] != ';')
2266             break;
2267         i++;
2268         while (cp[i] == ' ')
2269             i++;
2270         if (!strncmp(cp + i, "charset=", 8))
2271         {
2272             size_t j = 0;
2273             i = i + 8; /* skip charset= */
2274             for (j = 0; cp[i] && cp[i] != ';' && cp[i] != ' '; i++)
2275             {
2276                 if (j < sizeof(charset)-1)
2277                     charset[j++] = cp[i];
2278             }
2279             charset[j] = '\0';
2280         }
2281         else if (!strncmp(cp + i, "format=", 7))
2282         {
2283             size_t j = 0;
2284             i = i + 7;
2285             for (j = 0; cp[i] && cp[i] != ';' && cp[i] != ' '; i++)
2286             {
2287                 if (j < sizeof(format)-1)
2288                     format[j++] = cp[i];
2289             }
2290             format[j] = '\0';
2291         }
2292     }
2293     if (!strcmp(type, "database"))
2294     {
2295         if (len)
2296             *len = (npr->databaseName ? strlen(npr->databaseName) : 0);
2297         return npr->databaseName;
2298     }
2299     else if (!strcmp(type, "schema"))
2300     {
2301         if (len)
2302             *len = schema ? strlen(schema) : 0;
2303         return schema;
2304     }
2305     else if (!strcmp(type, "syntax"))
2306     {
2307         const char *desc = 0;
2308         if (npr->which == Z_NamePlusRecord_databaseRecord)
2309         {
2310             Z_External *r = (Z_External *) npr->u.databaseRecord;
2311             desc = yaz_oid_to_string(yaz_oid_std(), r->direct_reference, 0);
2312         }
2313         if (!desc)
2314             desc = "none";
2315         if (len)
2316             *len = strlen(desc);
2317         return desc;
2318     }
2319     if (npr->which != Z_NamePlusRecord_databaseRecord)
2320         return 0;
2321
2322     /* from now on - we have a database record .. */
2323     if (!strcmp(type, "render"))
2324     {
2325         return get_record_format(wrbuf, len, npr, YAZ_MARC_LINE, charset, format);
2326     }
2327     else if (!strcmp(type, "xml"))
2328     {
2329         return get_record_format(wrbuf, len, npr, YAZ_MARC_MARCXML, charset,
2330                                  format);
2331     }
2332     else if (!strcmp(type, "txml"))
2333     {
2334         return get_record_format(wrbuf, len, npr, YAZ_MARC_TURBOMARC, charset,
2335                                  format);
2336     }
2337     else if (!strcmp(type, "raw"))
2338     {
2339         return get_record_format(wrbuf, len, npr, YAZ_MARC_ISO2709, charset,
2340             format);
2341     }
2342     else if (!strcmp(type, "ext"))
2343     {
2344         if (len) *len = -1;
2345         return (const char *) npr->u.databaseRecord;
2346     }
2347     else if (!strcmp(type, "opac"))
2348     {
2349         if (npr->u.databaseRecord->which == Z_External_OPAC)
2350             return get_record_format(wrbuf, len, npr, YAZ_MARC_MARCXML, charset,
2351                                      format);
2352     }
2353     return 0;
2354 }
2355
2356 ZOOM_API(const char *)
2357     ZOOM_record_get(ZOOM_record rec, const char *type_spec, int *len)
2358 {
2359     WRBUF wrbuf;
2360
2361     if (len)
2362         *len = 0; /* default return */
2363
2364     if (!rec || !rec->npr)
2365         return 0;
2366
2367 #if SHPTR
2368     if (!rec->record_wrbuf)
2369     {
2370         WRBUF w = wrbuf_alloc();
2371         YAZ_SHPTR_INIT(rec->record_wrbuf, w);
2372     }
2373     wrbuf = rec->record_wrbuf->ptr;
2374 #else
2375     if (!rec->wrbuf)
2376         rec->wrbuf = wrbuf_alloc();
2377     wrbuf = rec->wrbuf;
2378 #endif
2379     return npr_format(rec->npr, rec->schema, wrbuf, type_spec, len);
2380 }
2381
2382 static int strcmp_null(const char *v1, const char *v2)
2383 {
2384     if (!v1 && !v2)
2385         return 0;
2386     if (!v1 || !v2)
2387         return -1;
2388     return strcmp(v1, v2);
2389 }
2390
2391 static size_t record_hash(int pos)
2392 {
2393     if (pos < 0)
2394         pos = 0;
2395     return pos % RECORD_HASH_SIZE;
2396 }
2397
2398 static void record_cache_add(ZOOM_resultset r, Z_NamePlusRecord *npr,
2399                              int pos,
2400                              const char *syntax, const char *elementSetName,
2401                              const char *schema,
2402                              Z_SRW_diagnostic *diag)
2403 {
2404     ZOOM_record_cache rc = 0;
2405
2406     ZOOM_Event event = ZOOM_Event_create(ZOOM_EVENT_RECV_RECORD);
2407     ZOOM_connection_put_event(r->connection, event);
2408
2409     for (rc = r->record_hash[record_hash(pos)]; rc; rc = rc->next)
2410     {
2411         if (pos == rc->pos
2412             && strcmp_null(r->schema, rc->schema) == 0
2413             && strcmp_null(elementSetName,rc->elementSetName) == 0
2414             && strcmp_null(syntax, rc->syntax) == 0)
2415             break;
2416     }
2417     if (!rc)
2418     {
2419         rc = (ZOOM_record_cache) odr_malloc(r->odr, sizeof(*rc));
2420         rc->rec.odr = 0;
2421 #if SHPTR
2422         YAZ_SHPTR_INC(r->record_wrbuf);
2423         rc->rec.record_wrbuf = r->record_wrbuf;
2424 #else
2425         rc->rec.wrbuf = 0;
2426 #endif
2427         rc->elementSetName = odr_strdup_null(r->odr, elementSetName);
2428
2429         rc->syntax = odr_strdup_null(r->odr, syntax);
2430
2431         rc->schema = odr_strdup_null(r->odr, r->schema);
2432
2433         rc->pos = pos;
2434         rc->next = r->record_hash[record_hash(pos)];
2435         r->record_hash[record_hash(pos)] = rc;
2436     }
2437     rc->rec.npr = npr;
2438     rc->rec.schema = odr_strdup_null(r->odr, schema);
2439     rc->rec.diag_set = 0;
2440     rc->rec.diag_uri = 0;
2441     rc->rec.diag_message = 0;
2442     rc->rec.diag_details = 0;
2443     if (diag)
2444     {
2445         if (diag->uri)
2446         {
2447             char *cp;
2448             rc->rec.diag_set = odr_strdup(r->odr, diag->uri);
2449             if ((cp = strrchr(rc->rec.diag_set, '/')))
2450                 *cp = '\0';
2451             rc->rec.diag_uri = odr_strdup(r->odr, diag->uri);
2452         }
2453         rc->rec.diag_message = odr_strdup_null(r->odr, diag->message);
2454         rc->rec.diag_details = odr_strdup_null(r->odr, diag->details);
2455     }
2456 }
2457
2458 static ZOOM_record record_cache_lookup(ZOOM_resultset r, int pos,
2459                                        const char *syntax,
2460                                        const char *elementSetName)
2461 {
2462     ZOOM_record_cache rc;
2463
2464     for (rc = r->record_hash[record_hash(pos)]; rc; rc = rc->next)
2465     {
2466         if (pos == rc->pos)
2467         {
2468             if (strcmp_null(r->schema, rc->schema))
2469                 continue;
2470             if (strcmp_null(elementSetName,rc->elementSetName))
2471                 continue;
2472             if (strcmp_null(syntax, rc->syntax))
2473                 continue;
2474             return &rc->rec;
2475         }
2476     }
2477     return 0;
2478 }
2479
2480 static void handle_records(ZOOM_connection c, Z_Records *sr,
2481                            int present_phase)
2482 {
2483     ZOOM_resultset resultset;
2484     int *start, *count;
2485     const char *syntax = 0, *elementSetName = 0;
2486
2487     if (!c->tasks)
2488         return ;
2489     switch (c->tasks->which)
2490     {
2491     case ZOOM_TASK_SEARCH:
2492         resultset = c->tasks->u.search.resultset;
2493         start = &c->tasks->u.search.start;
2494         count = &c->tasks->u.search.count;
2495         syntax = c->tasks->u.search.syntax;
2496         elementSetName = c->tasks->u.search.elementSetName;
2497         break;
2498     case ZOOM_TASK_RETRIEVE:
2499         resultset = c->tasks->u.retrieve.resultset;
2500         start = &c->tasks->u.retrieve.start;
2501         count = &c->tasks->u.retrieve.count;
2502         syntax = c->tasks->u.retrieve.syntax;
2503         elementSetName = c->tasks->u.retrieve.elementSetName;
2504         break;
2505     default:
2506         return;
2507     }
2508     if (sr && sr->which == Z_Records_NSD)
2509         response_default_diag(c, sr->u.nonSurrogateDiagnostic);
2510     else if (sr && sr->which == Z_Records_multipleNSD)
2511     {
2512         if (sr->u.multipleNonSurDiagnostics->num_diagRecs >= 1)
2513             response_diag(c, sr->u.multipleNonSurDiagnostics->diagRecs[0]);
2514         else
2515             set_ZOOM_error(c, ZOOM_ERROR_DECODE, 0);
2516     }
2517     else
2518     {
2519         if (*count + *start > resultset->size)
2520             *count = resultset->size - *start;
2521         if (*count < 0)
2522             *count = 0;
2523         if (sr && sr->which == Z_Records_DBOSD)
2524         {
2525             int i;
2526             NMEM nmem = odr_extract_mem(c->odr_in);
2527             Z_NamePlusRecordList *p =
2528                 sr->u.databaseOrSurDiagnostics;
2529             for (i = 0; i<p->num_records; i++)
2530             {
2531                 record_cache_add(resultset, p->records[i], i + *start,
2532                                  syntax, elementSetName,
2533                                  elementSetName, 0);
2534             }
2535             *count -= i;
2536             if (*count < 0)
2537                 *count = 0;
2538             *start += i;
2539             yaz_log(log_details,
2540                     "handle_records resultset=%p start=%d count=%d",
2541                     resultset, *start, *count);
2542
2543             /* transfer our response to search_nmem .. we need it later */
2544             nmem_transfer(odr_getmem(resultset->odr), nmem);
2545             nmem_destroy(nmem);
2546             if (present_phase && p->num_records == 0)
2547             {
2548                 /* present response and we didn't get any records! */
2549                 Z_NamePlusRecord *myrec =
2550                     zget_surrogateDiagRec(
2551                         resultset->odr, 0,
2552                         YAZ_BIB1_SYSTEM_ERROR_IN_PRESENTING_RECORDS,
2553                         "ZOOM C generated. Present phase and no records");
2554                 record_cache_add(resultset, myrec, *start,
2555                                  syntax, elementSetName, 0, 0);
2556             }
2557         }
2558         else if (present_phase)
2559         {
2560             /* present response and we didn't get any records! */
2561             Z_NamePlusRecord *myrec =
2562                 zget_surrogateDiagRec(
2563                     resultset->odr, 0,
2564                     YAZ_BIB1_SYSTEM_ERROR_IN_PRESENTING_RECORDS,
2565                     "ZOOM C generated: Present response and no records");
2566             record_cache_add(resultset, myrec, *start, syntax, elementSetName,
2567                              0, 0);
2568         }
2569     }
2570 }
2571
2572 static void handle_present_response(ZOOM_connection c, Z_PresentResponse *pr)
2573 {
2574     handle_records(c, pr->records, 1);
2575 }
2576
2577 static void handle_queryExpressionTerm(ZOOM_options opt, const char *name,
2578                                        Z_Term *term)
2579 {
2580     switch (term->which)
2581     {
2582     case Z_Term_general:
2583         ZOOM_options_setl(opt, name,
2584                           (const char *)(term->u.general->buf),
2585                           term->u.general->len);
2586         break;
2587     case Z_Term_characterString:
2588         ZOOM_options_set(opt, name, term->u.characterString);
2589         break;
2590     case Z_Term_numeric:
2591         ZOOM_options_set_int(opt, name, *term->u.numeric);
2592         break;
2593     }
2594 }
2595
2596 static void handle_queryExpression(ZOOM_options opt, const char *name,
2597                                    Z_QueryExpression *exp)
2598 {
2599     char opt_name[80];
2600
2601     switch (exp->which)
2602     {
2603     case Z_QueryExpression_term:
2604         if (exp->u.term && exp->u.term->queryTerm)
2605         {
2606             sprintf(opt_name, "%s.term", name);
2607             handle_queryExpressionTerm(opt, opt_name, exp->u.term->queryTerm);
2608         }
2609         break;
2610     case Z_QueryExpression_query:
2611         break;
2612     }
2613 }
2614
2615 static void handle_search_result(ZOOM_connection c, ZOOM_resultset resultset,
2616                                 Z_OtherInformation *o)
2617 {
2618     int i;
2619     for (i = 0; o && i < o->num_elements; i++)
2620     {
2621         if (o->list[i]->which == Z_OtherInfo_externallyDefinedInfo)
2622         {
2623             Z_External *ext = o->list[i]->information.externallyDefinedInfo;
2624
2625             if (ext->which == Z_External_searchResult1)
2626             {
2627                 int j;
2628                 Z_SearchInfoReport *sr = ext->u.searchResult1;
2629
2630                 if (sr->num)
2631                     ZOOM_options_set_int(
2632                         resultset->options, "searchresult.size", sr->num);
2633
2634                 for (j = 0; j < sr->num; j++)
2635                 {
2636                     Z_SearchInfoReport_s *ent =
2637                         ext->u.searchResult1->elements[j];
2638                     char pref[80];
2639
2640                     sprintf(pref, "searchresult.%d", j);
2641
2642                     if (ent->subqueryId)
2643                     {
2644                         char opt_name[80];
2645                         sprintf(opt_name, "%s.id", pref);
2646                         ZOOM_options_set(resultset->options, opt_name,
2647                                          ent->subqueryId);
2648                     }
2649                     if (ent->subqueryExpression)
2650                     {
2651                         char opt_name[80];
2652                         sprintf(opt_name, "%s.subquery", pref);
2653                         handle_queryExpression(resultset->options, opt_name,
2654                                                ent->subqueryExpression);
2655                     }
2656                     if (ent->subqueryInterpretation)
2657                     {
2658                         char opt_name[80];
2659                         sprintf(opt_name, "%s.interpretation", pref);
2660                         handle_queryExpression(resultset->options, opt_name,
2661                                                ent->subqueryInterpretation);
2662                     }
2663                     if (ent->subqueryRecommendation)
2664                     {
2665                         char opt_name[80];
2666                         sprintf(opt_name, "%s.recommendation", pref);
2667                         handle_queryExpression(resultset->options, opt_name,
2668                                                ent->subqueryRecommendation);
2669                     }
2670                     if (ent->subqueryCount)
2671                     {
2672                         char opt_name[80];
2673                         sprintf(opt_name, "%s.count", pref);
2674                         ZOOM_options_set_int(resultset->options, opt_name,
2675                                              *ent->subqueryCount);
2676                     }
2677                 }
2678             }
2679         }
2680     }
2681 }
2682
2683 static char *get_term_cstr(ODR odr, Z_Term *term) {
2684
2685     switch (term->which) {
2686     case Z_Term_general:
2687             return odr_strdupn(odr, (const char *) term->u.general->buf, (size_t) term->u.general->len);
2688         break;
2689     case Z_Term_characterString:
2690         return odr_strdup(odr, term->u.characterString);
2691     }
2692     return 0;
2693 }
2694
2695 static ZOOM_facet_field get_zoom_facet_field(ODR odr, Z_FacetField *facet) {
2696     int term_index;
2697     struct attrvalues attr_values;
2698     ZOOM_facet_field facet_field = odr_malloc(odr, sizeof(*facet_field));
2699     memset(&attr_values, 0, sizeof(attr_values));
2700     facetattrs(facet->attributes, &attr_values);
2701     facet_field->facet_name = odr_strdup(odr, attr_values.useattr);
2702     facet_field->num_terms = facet->num_terms;
2703     facet_field->facet_terms = odr_malloc(odr, facet_field->num_terms * sizeof(*facet_field->facet_terms));
2704     for (term_index = 0 ; term_index < facet->num_terms; term_index++) {
2705         Z_FacetTerm *facetTerm = facet->terms[term_index];
2706         facet_field->facet_terms[term_index].frequency = *facetTerm->count;
2707         facet_field->facet_terms[term_index].term = get_term_cstr(odr, facetTerm->term);
2708     }
2709     return facet_field;
2710 }
2711
2712 static void handle_facet_result(ZOOM_connection c, ZOOM_resultset r,
2713                                 Z_OtherInformation *o)
2714 {
2715     int i;
2716     for (i = 0; o && i < o->num_elements; i++)
2717     {
2718         if (o->list[i]->which == Z_OtherInfo_externallyDefinedInfo)
2719         {
2720             Z_External *ext = o->list[i]->information.externallyDefinedInfo;
2721             if (ext->which == Z_External_userFacets)
2722             {
2723                 int j;
2724                 Z_FacetList *fl = ext->u.facetList;
2725                 r->num_facets   = fl->num;
2726                 r->facets       =  odr_malloc(r->odr, r->num_facets * sizeof(*r->facets));
2727                 r->facets_names =  odr_malloc(r->odr, r->num_facets * sizeof(*r->facets_names));
2728                 for (j = 0; j < fl->num; j++)
2729                 {
2730                     r->facets[j] = get_zoom_facet_field(r->odr, fl->elements[j]);
2731                     r->facets_names[j] = (char *) ZOOM_facet_field_name(r->facets[j]);
2732                 }
2733             }
2734         }
2735     }
2736 }
2737
2738
2739 static void handle_search_response(ZOOM_connection c, Z_SearchResponse *sr)
2740 {
2741     ZOOM_resultset resultset;
2742     ZOOM_Event event;
2743
2744     if (!c->tasks || c->tasks->which != ZOOM_TASK_SEARCH)
2745         return ;
2746
2747     event = ZOOM_Event_create(ZOOM_EVENT_RECV_SEARCH);
2748     ZOOM_connection_put_event(c, event);
2749
2750     resultset = c->tasks->u.search.resultset;
2751
2752     if (sr->resultSetStatus)
2753     {
2754         ZOOM_options_set_int(resultset->options, "resultSetStatus",
2755                              *sr->resultSetStatus);
2756     }
2757     if (sr->presentStatus)
2758     {
2759         ZOOM_options_set_int(resultset->options, "presentStatus",
2760                              *sr->presentStatus);
2761     }
2762     handle_search_result(c, resultset, sr->additionalSearchInfo);
2763
2764     handle_facet_result(c, resultset, sr->additionalSearchInfo);
2765
2766     resultset->size = *sr->resultCount;
2767     handle_records(c, sr->records, 0);
2768 }
2769
2770 static void sort_response(ZOOM_connection c, Z_SortResponse *res)
2771 {
2772     if (res->diagnostics && res->num_diagnostics > 0)
2773         response_diag(c, res->diagnostics[0]);
2774 }
2775
2776 static int scan_response(ZOOM_connection c, Z_ScanResponse *res)
2777 {
2778     NMEM nmem = odr_extract_mem(c->odr_in);
2779     ZOOM_scanset scan;
2780
2781     if (!c->tasks || c->tasks->which != ZOOM_TASK_SCAN)
2782         return 0;
2783     scan = c->tasks->u.scan.scan;
2784
2785     if (res->entries && res->entries->nonsurrogateDiagnostics)
2786         response_diag(c, res->entries->nonsurrogateDiagnostics[0]);
2787     scan->scan_response = res;
2788     scan->srw_scan_response = 0;
2789     nmem_transfer(odr_getmem(scan->odr), nmem);
2790     if (res->stepSize)
2791         ZOOM_options_set_int(scan->options, "stepSize", *res->stepSize);
2792     if (res->positionOfTerm)
2793         ZOOM_options_set_int(scan->options, "position", *res->positionOfTerm);
2794     if (res->scanStatus)
2795         ZOOM_options_set_int(scan->options, "scanStatus", *res->scanStatus);
2796     if (res->numberOfEntriesReturned)
2797         ZOOM_options_set_int(scan->options, "number",
2798                              *res->numberOfEntriesReturned);
2799     nmem_destroy(nmem);
2800     return 1;
2801 }
2802
2803 static zoom_ret send_sort(ZOOM_connection c,
2804                           ZOOM_resultset resultset)
2805 {
2806     if (c->error)
2807         resultset->r_sort_spec = 0;
2808     if (resultset->r_sort_spec)
2809     {
2810         Z_APDU *apdu = zget_APDU(c->odr_out, Z_APDU_sortRequest);
2811         Z_SortRequest *req = apdu->u.sortRequest;
2812
2813         req->num_inputResultSetNames = 1;
2814         req->inputResultSetNames = (Z_InternationalString **)
2815             odr_malloc(c->odr_out, sizeof(*req->inputResultSetNames));
2816         req->inputResultSetNames[0] =
2817             odr_strdup(c->odr_out, resultset->setname);
2818         req->sortedResultSetName = odr_strdup(c->odr_out, resultset->setname);
2819         req->sortSequence = resultset->r_sort_spec;
2820         resultset->r_sort_spec = 0;
2821         return send_APDU(c, apdu);
2822     }
2823     return zoom_complete;
2824 }
2825
2826 static zoom_ret send_present(ZOOM_connection c)
2827 {
2828     Z_APDU *apdu = 0;
2829     Z_PresentRequest *req = 0;
2830     int i = 0;
2831     const char *syntax = 0;
2832     const char *elementSetName = 0;
2833     ZOOM_resultset  resultset;
2834     int *start, *count;
2835
2836     if (!c->tasks)
2837     {
2838         yaz_log(log_details, "%p send_present no tasks", c);
2839         return zoom_complete;
2840     }
2841
2842     switch (c->tasks->which)
2843     {
2844     case ZOOM_TASK_SEARCH:
2845         resultset = c->tasks->u.search.resultset;
2846         start = &c->tasks->u.search.start;
2847         count = &c->tasks->u.search.count;
2848         syntax = c->tasks->u.search.syntax;
2849         elementSetName = c->tasks->u.search.elementSetName;
2850         break;
2851     case ZOOM_TASK_RETRIEVE:
2852         resultset = c->tasks->u.retrieve.resultset;
2853         start = &c->tasks->u.retrieve.start;
2854         count = &c->tasks->u.retrieve.count;
2855         syntax = c->tasks->u.retrieve.syntax;
2856         elementSetName = c->tasks->u.retrieve.elementSetName;
2857         break;
2858     default:
2859         return zoom_complete;
2860     }
2861     yaz_log(log_details, "%p send_present start=%d count=%d",
2862             c, *start, *count);
2863
2864     if (*start < 0 || *count < 0 || *start + *count > resultset->size)
2865     {
2866         set_dset_error(c, YAZ_BIB1_PRESENT_REQUEST_OUT_OF_RANGE, "Bib-1",
2867                        "", 0);
2868     }
2869     if (c->error)                  /* don't continue on error */
2870         return zoom_complete;
2871     yaz_log(log_details, "send_present resultset=%p start=%d count=%d",
2872             resultset, *start, *count);
2873
2874     for (i = 0; i < *count; i++)
2875     {
2876         ZOOM_record rec =
2877             record_cache_lookup(resultset, i + *start, syntax, elementSetName);
2878         if (!rec)
2879             break;
2880         else
2881         {
2882             ZOOM_Event event = ZOOM_Event_create(ZOOM_EVENT_RECV_RECORD);
2883             ZOOM_connection_put_event(c, event);
2884         }
2885     }
2886     *start += i;
2887     *count -= i;
2888
2889     if (*count == 0)
2890     {
2891         yaz_log(log_details, "%p send_present skip=%d no more to fetch", c, i);
2892         return zoom_complete;
2893     }
2894
2895     apdu = zget_APDU(c->odr_out, Z_APDU_presentRequest);
2896     req = apdu->u.presentRequest;
2897
2898     if (i)
2899         yaz_log(log_details, "%p send_present skip=%d", c, i);
2900
2901     *req->resultSetStartPoint = *start + 1;
2902
2903     if (resultset->step > 0 && resultset->step < *count)
2904         *req->numberOfRecordsRequested = resultset->step;
2905     else
2906         *req->numberOfRecordsRequested = *count;
2907
2908     if (*req->numberOfRecordsRequested + *start > resultset->size)
2909         *req->numberOfRecordsRequested = resultset->size - *start;
2910     assert(*req->numberOfRecordsRequested > 0);
2911
2912     if (syntax && *syntax)
2913         req->preferredRecordSyntax =
2914             zoom_yaz_str_to_z3950oid(c, CLASS_RECSYN, syntax);
2915
2916     if (resultset->schema && *resultset->schema)
2917     {
2918         Z_RecordComposition *compo = (Z_RecordComposition *)
2919             odr_malloc(c->odr_out, sizeof(*compo));
2920
2921         req->recordComposition = compo;
2922         compo->which = Z_RecordComp_complex;
2923         compo->u.complex = (Z_CompSpec *)
2924             odr_malloc(c->odr_out, sizeof(*compo->u.complex));
2925         compo->u.complex->selectAlternativeSyntax = (bool_t *)
2926             odr_malloc(c->odr_out, sizeof(bool_t));
2927         *compo->u.complex->selectAlternativeSyntax = 0;
2928
2929         compo->u.complex->generic = (Z_Specification *)
2930             odr_malloc(c->odr_out, sizeof(*compo->u.complex->generic));
2931
2932         compo->u.complex->generic->which = Z_Schema_oid;
2933         compo->u.complex->generic->schema.oid = (Odr_oid *)
2934             zoom_yaz_str_to_z3950oid (c, CLASS_SCHEMA, resultset->schema);
2935
2936         if (!compo->u.complex->generic->schema.oid)
2937         {
2938             /* OID wasn't a schema! Try record syntax instead. */
2939
2940             compo->u.complex->generic->schema.oid = (Odr_oid *)
2941                 zoom_yaz_str_to_z3950oid (c, CLASS_RECSYN, resultset->schema);
2942         }
2943         if (elementSetName && *elementSetName)
2944         {
2945             compo->u.complex->generic->elementSpec = (Z_ElementSpec *)
2946                 odr_malloc(c->odr_out, sizeof(Z_ElementSpec));
2947             compo->u.complex->generic->elementSpec->which =
2948                 Z_ElementSpec_elementSetName;
2949             compo->u.complex->generic->elementSpec->u.elementSetName =
2950                 odr_strdup(c->odr_out, elementSetName);
2951         }
2952         else
2953             compo->u.complex->generic->elementSpec = 0;
2954         compo->u.complex->num_dbSpecific = 0;
2955         compo->u.complex->dbSpecific = 0;
2956         compo->u.complex->num_recordSyntax = 0;
2957         compo->u.complex->recordSyntax = 0;
2958     }
2959     else if (elementSetName && *elementSetName)
2960     {
2961         Z_ElementSetNames *esn = (Z_ElementSetNames *)
2962             odr_malloc(c->odr_out, sizeof(*esn));
2963         Z_RecordComposition *compo = (Z_RecordComposition *)
2964             odr_malloc(c->odr_out, sizeof(*compo));
2965
2966         esn->which = Z_ElementSetNames_generic;
2967         esn->u.generic = odr_strdup(c->odr_out, elementSetName);
2968         compo->which = Z_RecordComp_simple;
2969         compo->u.simple = esn;
2970         req->recordComposition = compo;
2971     }
2972     req->resultSetId = odr_strdup(c->odr_out, resultset->setname);
2973     return send_APDU(c, apdu);
2974 }
2975
2976 ZOOM_API(ZOOM_scanset)
2977     ZOOM_connection_scan(ZOOM_connection c, const char *start)
2978 {
2979     ZOOM_scanset s;
2980     ZOOM_query q = ZOOM_query_create();
2981
2982     ZOOM_query_prefix(q, start);
2983
2984     s = ZOOM_connection_scan1(c, q);
2985     ZOOM_query_destroy(q);
2986     return s;
2987
2988 }
2989
2990 ZOOM_API(ZOOM_scanset)
2991     ZOOM_connection_scan1(ZOOM_connection c, ZOOM_query q)
2992 {
2993     ZOOM_scanset scan = 0;
2994
2995     if (!q->z_query)
2996         return 0;
2997     scan = (ZOOM_scanset) xmalloc(sizeof(*scan));
2998     scan->connection = c;
2999     scan->odr = odr_createmem(ODR_DECODE);
3000     scan->options = ZOOM_options_create_with_parent(c->options);
3001     scan->refcount = 1;
3002     scan->scan_response = 0;
3003     scan->srw_scan_response = 0;
3004
3005     scan->query = q;
3006     (q->refcount)++;
3007     scan->databaseNames = set_DatabaseNames(c, c->options,
3008                                             &scan->num_databaseNames,
3009                                             scan->odr);
3010
3011     if (1)
3012     {
3013         ZOOM_task task = ZOOM_connection_add_task(c, ZOOM_TASK_SCAN);
3014         task->u.scan.scan = scan;
3015
3016         (scan->refcount)++;
3017         if (!c->async)
3018         {
3019             while (ZOOM_event(1, &c))
3020                 ;
3021         }
3022     }
3023     return scan;
3024 }
3025
3026 ZOOM_API(void)
3027     ZOOM_scanset_destroy(ZOOM_scanset scan)
3028 {
3029     if (!scan)
3030         return;
3031     (scan->refcount)--;
3032     if (scan->refcount == 0)
3033     {
3034         ZOOM_query_destroy(scan->query);
3035
3036         odr_destroy(scan->odr);
3037
3038         ZOOM_options_destroy(scan->options);
3039         xfree(scan);
3040     }
3041 }
3042
3043 static zoom_ret send_package(ZOOM_connection c)
3044 {
3045     ZOOM_Event event;
3046
3047     yaz_log(log_details, "%p send_package", c);
3048     if (!c->tasks)
3049         return zoom_complete;
3050     assert (c->tasks->which == ZOOM_TASK_PACKAGE);
3051
3052     event = ZOOM_Event_create(ZOOM_EVENT_SEND_APDU);
3053     ZOOM_connection_put_event(c, event);
3054
3055     c->buf_out = c->tasks->u.package->buf_out;
3056     c->len_out = c->tasks->u.package->len_out;
3057
3058     return do_write(c);
3059 }
3060
3061 static zoom_ret ZOOM_connection_send_scan(ZOOM_connection c)
3062 {
3063     ZOOM_scanset scan;
3064     Z_APDU *apdu = zget_APDU(c->odr_out, Z_APDU_scanRequest);
3065     Z_ScanRequest *req = apdu->u.scanRequest;
3066
3067     yaz_log(log_details, "%p send_scan", c);
3068     if (!c->tasks)
3069         return zoom_complete;
3070     assert (c->tasks->which == ZOOM_TASK_SCAN);
3071     scan = c->tasks->u.scan.scan;
3072
3073     /* Z39.50 scan can only carry RPN */
3074     if (scan->query->z_query->which == Z_Query_type_1 ||
3075         scan->query->z_query->which == Z_Query_type_101)
3076     {
3077         Z_RPNQuery *rpn = scan->query->z_query->u.type_1;
3078         const char *cp = ZOOM_options_get(scan->options, "rpnCharset");
3079         if (cp)
3080         {
3081             yaz_iconv_t cd = yaz_iconv_open(cp, "UTF-8");
3082             if (cd)
3083             {
3084                 rpn = yaz_copy_z_RPNQuery(rpn, c->odr_out);
3085
3086                 yaz_query_charset_convert_rpnquery(
3087                     rpn, c->odr_out, cd);
3088                 yaz_iconv_close(cd);
3089             }
3090         }
3091         req->attributeSet = rpn->attributeSetId;
3092         if (!req->attributeSet)
3093             req->attributeSet = odr_oiddup(c->odr_out, yaz_oid_attset_bib_1);
3094         if (rpn->RPNStructure->which == Z_RPNStructure_simple &&
3095             rpn->RPNStructure->u.simple->which == Z_Operand_APT)
3096         {
3097             req->termListAndStartPoint =
3098                 rpn->RPNStructure->u.simple->u.attributesPlusTerm;
3099         }
3100         else
3101         {
3102             set_ZOOM_error(c, ZOOM_ERROR_INVALID_QUERY, 0);
3103             return zoom_complete;
3104         }
3105     }
3106     else
3107     {
3108         set_ZOOM_error(c, ZOOM_ERROR_UNSUPPORTED_QUERY, 0);
3109         return zoom_complete;
3110     }
3111
3112     *req->numberOfTermsRequested =
3113         ZOOM_options_get_int(scan->options, "number", 20);
3114
3115     req->preferredPositionInResponse =
3116         odr_intdup(c->odr_out,
3117                    ZOOM_options_get_int(scan->options, "position", 1));
3118
3119     req->stepSize =
3120         odr_intdup(c->odr_out,
3121                    ZOOM_options_get_int(scan->options, "stepSize", 0));
3122
3123     req->databaseNames = scan->databaseNames;
3124     req->num_databaseNames = scan->num_databaseNames;
3125
3126     return send_APDU(c, apdu);
3127 }
3128
3129 #if YAZ_HAVE_XML2
3130 static zoom_ret ZOOM_connection_srw_send_scan(ZOOM_connection c)
3131 {
3132     ZOOM_scanset scan;
3133     Z_SRW_PDU *sr = 0;
3134     const char *option_val = 0;
3135
3136     if (!c->tasks)
3137         return zoom_complete;
3138     assert (c->tasks->which == ZOOM_TASK_SCAN);
3139     scan = c->tasks->u.scan.scan;
3140
3141     sr = ZOOM_srw_get_pdu(c, Z_SRW_scan_request);
3142
3143     /* SRU scan can only carry CQL and PQF */
3144     if (scan->query->z_query->which == Z_Query_type_104)
3145     {
3146         sr->u.scan_request->query_type = Z_SRW_query_type_cql;
3147         sr->u.scan_request->scanClause.cql = scan->query->query_string;
3148     }
3149     else if (scan->query->z_query->which == Z_Query_type_1
3150              || scan->query->z_query->which == Z_Query_type_101)
3151     {
3152         sr->u.scan_request->query_type = Z_SRW_query_type_pqf;
3153         sr->u.scan_request->scanClause.pqf = scan->query->query_string;
3154     }
3155     else
3156     {
3157         set_ZOOM_error(c, ZOOM_ERROR_UNSUPPORTED_QUERY, 0);
3158         return zoom_complete;
3159     }
3160
3161     sr->u.scan_request->maximumTerms = odr_intdup(
3162         c->odr_out, ZOOM_options_get_int(scan->options, "number", 10));
3163
3164     sr->u.scan_request->responsePosition = odr_intdup(
3165         c->odr_out, ZOOM_options_get_int(scan->options, "position", 1));
3166
3167     option_val = ZOOM_options_get(scan->options, "extraArgs");
3168     yaz_encode_sru_extra(sr, c->odr_out, option_val);
3169     return send_srw(c, sr);
3170 }
3171 #else
3172 static zoom_ret ZOOM_connection_srw_send_scan(ZOOM_connection c)
3173 {
3174     return zoom_complete;
3175 }
3176 #endif
3177
3178
3179 ZOOM_API(size_t)
3180     ZOOM_scanset_size(ZOOM_scanset scan)
3181 {
3182     if (!scan)
3183         return 0;
3184
3185     if (scan->scan_response && scan->scan_response->entries)
3186         return scan->scan_response->entries->num_entries;
3187     else if (scan->srw_scan_response)
3188         return scan->srw_scan_response->num_terms;
3189     return 0;
3190 }
3191
3192 static void ZOOM_scanset_term_x(ZOOM_scanset scan, size_t pos,
3193                                 size_t *occ,
3194                                 const char **value_term, size_t *value_len,
3195                                 const char **disp_term, size_t *disp_len)
3196 {
3197     size_t noent = ZOOM_scanset_size(scan);
3198
3199     *value_term = 0;
3200     *value_len = 0;
3201
3202     *disp_term = 0;
3203     *disp_len = 0;
3204
3205     *occ = 0;
3206     if (pos >= noent)
3207         return;
3208     if (scan->scan_response)
3209     {
3210         Z_ScanResponse *res = scan->scan_response;
3211         if (res->entries->entries[pos]->which == Z_Entry_termInfo)
3212         {
3213             Z_TermInfo *t = res->entries->entries[pos]->u.termInfo;
3214
3215             *value_term = (const char *) t->term->u.general->buf;
3216             *value_len = t->term->u.general->len;
3217             if (t->displayTerm)
3218             {
3219                 *disp_term = t->displayTerm;
3220                 *disp_len = strlen(*disp_term);
3221             }
3222             else if (t->term->which == Z_Term_general)
3223             {
3224                 *disp_term = (const char *) t->term->u.general->buf;
3225                 *disp_len = t->term->u.general->len;
3226             }
3227             *occ = t->globalOccurrences ? *t->globalOccurrences : 0;
3228         }
3229     }
3230     if (scan->srw_scan_response)
3231     {
3232         Z_SRW_scanResponse *res = scan->srw_scan_response;
3233         Z_SRW_scanTerm *t = res->terms + pos;
3234         if (t)
3235         {
3236             *value_term = t->value;
3237             *value_len = strlen(*value_term);
3238
3239             if (t->displayTerm)
3240                 *disp_term = t->displayTerm;
3241             else
3242                 *disp_term = t->value;
3243             *disp_len = strlen(*disp_term);
3244             *occ = t->numberOfRecords ? *t->numberOfRecords : 0;
3245         }
3246     }
3247 }
3248
3249 ZOOM_API(const char *)
3250     ZOOM_scanset_term(ZOOM_scanset scan, size_t pos,
3251                       size_t *occ, size_t *len)
3252 {
3253     const char *value_term = 0;
3254     size_t value_len = 0;
3255     const char *disp_term = 0;
3256     size_t disp_len = 0;
3257
3258     ZOOM_scanset_term_x(scan, pos, occ, &value_term, &value_len,
3259                         &disp_term, &disp_len);
3260
3261     *len = value_len;
3262     return value_term;
3263 }
3264
3265 ZOOM_API(const char *)
3266     ZOOM_scanset_display_term(ZOOM_scanset scan, size_t pos,
3267                               size_t *occ, size_t *len)
3268 {
3269     const char *value_term = 0;
3270     size_t value_len = 0;
3271     const char *disp_term = 0;
3272     size_t disp_len = 0;
3273
3274     ZOOM_scanset_term_x(scan, pos, occ, &value_term, &value_len,
3275                         &disp_term, &disp_len);
3276
3277     *len = disp_len;
3278     return disp_term;
3279 }
3280
3281 ZOOM_API(const char *)
3282     ZOOM_scanset_option_get(ZOOM_scanset scan, const char *key)
3283 {
3284     return ZOOM_options_get(scan->options, key);
3285 }
3286
3287 ZOOM_API(void)
3288     ZOOM_scanset_option_set(ZOOM_scanset scan, const char *key,
3289                             const char *val)
3290 {
3291     ZOOM_options_set(scan->options, key, val);
3292 }
3293
3294 static Z_APDU *create_es_package(ZOOM_package p, const Odr_oid *oid)
3295 {
3296     const char *str;
3297     Z_APDU *apdu = zget_APDU(p->odr_out, Z_APDU_extendedServicesRequest);
3298     Z_ExtendedServicesRequest *req = apdu->u.extendedServicesRequest;
3299
3300     str = ZOOM_options_get(p->options, "package-name");
3301     if (str && *str)
3302         req->packageName = odr_strdup(p->odr_out, str);
3303
3304     str = ZOOM_options_get(p->options, "user-id");
3305     if (str)
3306         req->userId = odr_strdup_null(p->odr_out, str);
3307
3308     req->packageType = odr_oiddup(p->odr_out, oid);
3309
3310     str = ZOOM_options_get(p->options, "function");
3311     if (str)
3312     {
3313         if (!strcmp (str, "create"))
3314             *req->function = Z_ExtendedServicesRequest_create;
3315         if (!strcmp (str, "delete"))
3316             *req->function = Z_ExtendedServicesRequest_delete;
3317         if (!strcmp (str, "modify"))
3318             *req->function = Z_ExtendedServicesRequest_modify;
3319     }
3320
3321     str = ZOOM_options_get(p->options, "waitAction");
3322     if (str)
3323     {
3324         if (!strcmp (str, "wait"))
3325             *req->waitAction = Z_ExtendedServicesRequest_wait;
3326         if (!strcmp (str, "waitIfPossible"))
3327             *req->waitAction = Z_ExtendedServicesRequest_waitIfPossible;
3328         if (!strcmp (str, "dontWait"))
3329             *req->waitAction = Z_ExtendedServicesRequest_dontWait;
3330         if (!strcmp (str, "dontReturnPackage"))
3331             *req->waitAction = Z_ExtendedServicesRequest_dontReturnPackage;
3332     }
3333     return apdu;
3334 }
3335
3336 static const char *ill_array_lookup(void *clientData, const char *idx)
3337 {
3338     ZOOM_package p = (ZOOM_package) clientData;
3339     return ZOOM_options_get(p->options, idx+4);
3340 }
3341
3342 static Z_External *encode_ill_request(ZOOM_package p)
3343 {
3344     ODR out = p->odr_out;
3345     ILL_Request *req;
3346     Z_External *r = 0;
3347     struct ill_get_ctl ctl;
3348
3349     ctl.odr = p->odr_out;
3350     ctl.clientData = p;
3351     ctl.f = ill_array_lookup;
3352
3353     req = ill_get_ILLRequest(&ctl, "ill", 0);
3354
3355     if (!ill_Request(out, &req, 0, 0))
3356     {
3357         int ill_request_size;
3358         char *ill_request_buf = odr_getbuf(out, &ill_request_size, 0);
3359         if (ill_request_buf)
3360             odr_setbuf(out, ill_request_buf, ill_request_size, 1);
3361         return 0;
3362     }
3363     else
3364     {
3365         int illRequest_size = 0;
3366         char *illRequest_buf = odr_getbuf(out, &illRequest_size, 0);
3367
3368         r = (Z_External *) odr_malloc(out, sizeof(*r));
3369         r->direct_reference = odr_oiddup(out, yaz_oid_general_isoill_1);
3370         r->indirect_reference = 0;
3371         r->descriptor = 0;
3372         r->which = Z_External_single;
3373
3374         r->u.single_ASN1_type =
3375             odr_create_Odr_oct(out,
3376                                (unsigned char *)illRequest_buf,
3377                                illRequest_size);
3378     }
3379     return r;
3380 }
3381
3382 static Z_ItemOrder *encode_item_order(ZOOM_package p)
3383 {
3384     Z_ItemOrder *req = (Z_ItemOrder *) odr_malloc(p->odr_out, sizeof(*req));
3385     const char *str;
3386     int len;
3387
3388     req->which = Z_IOItemOrder_esRequest;
3389     req->u.esRequest = (Z_IORequest *)
3390         odr_malloc(p->odr_out,sizeof(Z_IORequest));
3391
3392     /* to keep part ... */
3393     req->u.esRequest->toKeep = (Z_IOOriginPartToKeep *)
3394         odr_malloc(p->odr_out,sizeof(Z_IOOriginPartToKeep));
3395     req->u.esRequest->toKeep->supplDescription = 0;
3396     req->u.esRequest->toKeep->contact = (Z_IOContact *)
3397         odr_malloc(p->odr_out, sizeof(*req->u.esRequest->toKeep->contact));
3398
3399     str = ZOOM_options_get(p->options, "contact-name");
3400     req->u.esRequest->toKeep->contact->name =
3401         odr_strdup_null(p->odr_out, str);
3402
3403     str = ZOOM_options_get(p->options, "contact-phone");
3404     req->u.esRequest->toKeep->contact->phone =
3405         odr_strdup_null(p->odr_out, str);
3406
3407     str = ZOOM_options_get(p->options, "contact-email");
3408     req->u.esRequest->toKeep->contact->email =
3409         odr_strdup_null(p->odr_out, str);
3410
3411     req->u.esRequest->toKeep->addlBilling = 0;
3412
3413     /* not to keep part ... */
3414     req->u.esRequest->notToKeep = (Z_IOOriginPartNotToKeep *)
3415         odr_malloc(p->odr_out,sizeof(Z_IOOriginPartNotToKeep));
3416
3417     str = ZOOM_options_get(p->options, "itemorder-setname");
3418     if (!str)
3419         str = "default";
3420
3421     if (!*str)
3422         req->u.esRequest->notToKeep->resultSetItem = 0;
3423     else
3424     {
3425         req->u.esRequest->notToKeep->resultSetItem = (Z_IOResultSetItem *)
3426             odr_malloc(p->odr_out, sizeof(Z_IOResultSetItem));
3427
3428         req->u.esRequest->notToKeep->resultSetItem->resultSetId =
3429             odr_strdup(p->odr_out, str);
3430         req->u.esRequest->notToKeep->resultSetItem->item =
3431             odr_intdup(p->odr_out, 0);
3432
3433         str = ZOOM_options_get(p->options, "itemorder-item");
3434         *req->u.esRequest->notToKeep->resultSetItem->item =
3435             (str ? atoi(str) : 1);
3436     }
3437
3438     str = ZOOM_options_getl(p->options, "doc", &len);
3439     if (str)
3440     {
3441         req->u.esRequest->notToKeep->itemRequest =
3442             z_ext_record_xml(p->odr_out, str, len);
3443     }
3444     else
3445         req->u.esRequest->notToKeep->itemRequest = encode_ill_request(p);
3446
3447     return req;
3448 }
3449
3450 Z_APDU *create_admin_package(ZOOM_package p, int type,
3451                              Z_ESAdminOriginPartToKeep **toKeepP,
3452                              Z_ESAdminOriginPartNotToKeep **notToKeepP)
3453 {
3454     Z_APDU *apdu = create_es_package(p, yaz_oid_extserv_admin);
3455     if (apdu)
3456     {
3457         Z_ESAdminOriginPartToKeep  *toKeep;
3458         Z_ESAdminOriginPartNotToKeep  *notToKeep;
3459         Z_External *r = (Z_External *) odr_malloc(p->odr_out, sizeof(*r));
3460         const char *first_db = "Default";
3461         int num_db;
3462         char **db = set_DatabaseNames(p->connection, p->options, &num_db,
3463                                       p->odr_out);
3464         if (num_db > 0)
3465             first_db = db[0];
3466
3467         r->direct_reference = odr_oiddup(p->odr_out, yaz_oid_extserv_admin);
3468         r->descriptor = 0;
3469         r->indirect_reference = 0;
3470         r->which = Z_External_ESAdmin;
3471
3472         r->u.adminService = (Z_Admin *)
3473             odr_malloc(p->odr_out, sizeof(*r->u.adminService));
3474         r->u.adminService->which = Z_Admin_esRequest;
3475         r->u.adminService->u.esRequest = (Z_AdminEsRequest *)
3476             odr_malloc(p->odr_out, sizeof(*r->u.adminService->u.esRequest));
3477
3478         toKeep = r->u.adminService->u.esRequest->toKeep =
3479             (Z_ESAdminOriginPartToKeep *)
3480             odr_malloc(p->odr_out, sizeof(*r->u.adminService->u.esRequest->toKeep));
3481         toKeep->which = type;
3482         toKeep->databaseName = odr_strdup(p->odr_out, first_db);
3483         toKeep->u.create = odr_nullval();
3484         apdu->u.extendedServicesRequest->taskSpecificParameters = r;
3485
3486         r->u.adminService->u.esRequest->notToKeep = notToKeep =
3487             (Z_ESAdminOriginPartNotToKeep *)
3488             odr_malloc(p->odr_out,
3489                        sizeof(*r->u.adminService->u.esRequest->notToKeep));
3490         notToKeep->which = Z_ESAdminOriginPartNotToKeep_recordsWillFollow;
3491         notToKeep->u.recordsWillFollow = odr_nullval();
3492         if (toKeepP)
3493             *toKeepP = toKeep;
3494         if (notToKeepP)
3495             *notToKeepP = notToKeep;
3496     }
3497     return apdu;
3498 }
3499
3500 static Z_APDU *create_xmlupdate_package(ZOOM_package p)
3501 {
3502     Z_APDU *apdu = create_es_package(p, yaz_oid_extserv_xml_es);
3503     Z_ExtendedServicesRequest *req = apdu->u.extendedServicesRequest;
3504     Z_External *ext = (Z_External *) odr_malloc(p->odr_out, sizeof(*ext));
3505     int len;
3506     const char *doc = ZOOM_options_getl(p->options, "doc", &len);
3507
3508     if (!doc)
3509     {
3510         doc = "";
3511         len = 0;
3512     }
3513
3514     req->taskSpecificParameters = ext;
3515     ext->direct_reference = req->packageType;
3516     ext->descriptor = 0;
3517     ext->indirect_reference = 0;
3518
3519     ext->which = Z_External_octet;
3520     ext->u.single_ASN1_type =
3521         odr_create_Odr_oct(p->odr_out, (const unsigned char *) doc, len);
3522     return apdu;
3523 }
3524
3525 static Z_APDU *create_update_package(ZOOM_package p)
3526 {
3527     Z_APDU *apdu = 0;
3528     const char *first_db = "Default";
3529     int num_db;
3530     char **db = set_DatabaseNames(p->connection, p->options, &num_db, p->odr_out);
3531     const char *action = ZOOM_options_get(p->options, "action");
3532     int recordIdOpaque_len;
3533     const char *recordIdOpaque = ZOOM_options_getl(p->options, "recordIdOpaque",
3534         &recordIdOpaque_len);
3535     const char *recordIdNumber = ZOOM_options_get(p->options, "recordIdNumber");
3536     int record_len;
3537     const char *record_buf = ZOOM_options_getl(p->options, "record",
3538         &record_len);
3539     int recordOpaque_len;
3540     const char *recordOpaque_buf = ZOOM_options_getl(p->options, "recordOpaque",
3541         &recordOpaque_len);
3542     const char *syntax_str = ZOOM_options_get(p->options, "syntax");
3543     const char *version = ZOOM_options_get(p->options, "updateVersion");
3544
3545     const char *correlationInfo_note =
3546         ZOOM_options_get(p->options, "correlationInfo.note");
3547     const char *correlationInfo_id =
3548         ZOOM_options_get(p->options, "correlationInfo.id");
3549     int action_no = -1;
3550     Odr_oid *syntax_oid = 0;
3551     const Odr_oid *package_oid = yaz_oid_extserv_database_update;
3552
3553     if (!version)
3554         version = "3";
3555     if (!syntax_str)
3556         syntax_str = "xml";
3557     if (!record_buf && !recordOpaque_buf)
3558     {
3559         record_buf = "void";
3560         record_len = 4;
3561         syntax_str = "SUTRS";
3562     }
3563
3564     if (syntax_str)
3565     {
3566         syntax_oid = yaz_string_to_oid_odr(yaz_oid_std(),
3567                                            CLASS_RECSYN, syntax_str,
3568                                            p->odr_out);
3569     }
3570     if (!syntax_oid)
3571         return 0;
3572
3573     if (num_db > 0)
3574         first_db = db[0];
3575
3576     switch(*version)
3577     {
3578     case '1':
3579         package_oid = yaz_oid_extserv_database_update_first_version;
3580         /* old update does not support specialUpdate */
3581         if (!action)
3582             action = "recordInsert";
3583         break;
3584     case '2':
3585         if (!action)
3586             action = "specialUpdate";
3587         package_oid = yaz_oid_extserv_database_update_second_version;
3588         break;
3589     case '3':
3590         if (!action)
3591             action = "specialUpdate";
3592         package_oid = yaz_oid_extserv_database_update;
3593         break;
3594     default:
3595         return 0;
3596     }
3597
3598     if (!strcmp(action, "recordInsert"))
3599         action_no = Z_IUOriginPartToKeep_recordInsert;
3600     else if (!strcmp(action, "recordReplace"))
3601         action_no = Z_IUOriginPartToKeep_recordReplace;
3602     else if (!strcmp(action, "recordDelete"))
3603         action_no = Z_IUOriginPartToKeep_recordDelete;
3604     else if (!strcmp(action, "elementUpdate"))
3605         action_no = Z_IUOriginPartToKeep_elementUpdate;
3606     else if (!strcmp(action, "specialUpdate"))
3607         action_no = Z_IUOriginPartToKeep_specialUpdate;
3608     else
3609         return 0;
3610
3611     apdu = create_es_package(p, package_oid);
3612     if (apdu)
3613     {
3614         Z_IUOriginPartToKeep *toKeep;
3615         Z_IUSuppliedRecords *notToKeep;
3616         Z_External *r = (Z_External *)
3617             odr_malloc(p->odr_out, sizeof(*r));
3618         const char *elementSetName =
3619             ZOOM_options_get(p->options, "elementSetName");
3620
3621         apdu->u.extendedServicesRequest->taskSpecificParameters = r;
3622
3623         r->direct_reference = odr_oiddup(p->odr_out, package_oid);
3624         r->descriptor = 0;
3625         r->which = Z_External_update;
3626         r->indirect_reference = 0;
3627         r->u.update = (Z_IUUpdate *)
3628             odr_malloc(p->odr_out, sizeof(*r->u.update));
3629
3630         r->u.update->which = Z_IUUpdate_esRequest;
3631         r->u.update->u.esRequest = (Z_IUUpdateEsRequest *)
3632             odr_malloc(p->odr_out, sizeof(*r->u.update->u.esRequest));
3633         toKeep = r->u.update->u.esRequest->toKeep =
3634             (Z_IUOriginPartToKeep *)
3635             odr_malloc(p->odr_out, sizeof(*toKeep));
3636
3637         toKeep->databaseName = odr_strdup(p->odr_out, first_db);
3638         toKeep->schema = 0;
3639
3640         toKeep->elementSetName = odr_strdup_null(p->odr_out, elementSetName);
3641
3642         toKeep->actionQualifier = 0;
3643         toKeep->action = odr_intdup(p->odr_out, action_no);
3644
3645         notToKeep = r->u.update->u.esRequest->notToKeep =
3646             (Z_IUSuppliedRecords *)
3647             odr_malloc(p->odr_out, sizeof(*notToKeep));
3648         notToKeep->num = 1;
3649         notToKeep->elements = (Z_IUSuppliedRecords_elem **)
3650             odr_malloc(p->odr_out, sizeof(*notToKeep->elements));
3651         notToKeep->elements[0] = (Z_IUSuppliedRecords_elem *)
3652             odr_malloc(p->odr_out, sizeof(**notToKeep->elements));
3653         notToKeep->elements[0]->which = Z_IUSuppliedRecords_elem_opaque;
3654         if (recordIdOpaque)
3655         {
3656             notToKeep->elements[0]->u.opaque =
3657                 odr_create_Odr_oct(p->odr_out,
3658                                    (const unsigned char *) recordIdOpaque,
3659                                    recordIdOpaque_len);
3660         }
3661         else if (recordIdNumber)
3662         {
3663             notToKeep->elements[0]->which = Z_IUSuppliedRecords_elem_number;
3664
3665             notToKeep->elements[0]->u.number =
3666                 odr_intdup(p->odr_out, atoi(recordIdNumber));
3667         }
3668         else
3669             notToKeep->elements[0]->u.opaque = 0;
3670         notToKeep->elements[0]->supplementalId = 0;
3671         if (correlationInfo_note || correlationInfo_id)
3672         {
3673             Z_IUCorrelationInfo *ci;
3674             ci = notToKeep->elements[0]->correlationInfo =
3675                 (Z_IUCorrelationInfo *) odr_malloc(p->odr_out, sizeof(*ci));
3676             ci->note = odr_strdup_null(p->odr_out, correlationInfo_note);
3677             ci->id = correlationInfo_id ?
3678                 odr_intdup(p->odr_out, atoi(correlationInfo_id)) : 0;
3679         }
3680         else
3681             notToKeep->elements[0]->correlationInfo = 0;
3682         if (recordOpaque_buf)
3683         {
3684             notToKeep->elements[0]->record =
3685                 z_ext_record_oid_any(p->odr_out, syntax_oid,
3686                                  recordOpaque_buf, recordOpaque_len);
3687         }
3688         else
3689         {
3690             notToKeep->elements[0]->record =
3691                 z_ext_record_oid(p->odr_out, syntax_oid,
3692                                  record_buf, record_len);
3693         }
3694     }
3695     if (0 && apdu)
3696     {
3697         ODR print = odr_createmem(ODR_PRINT);
3698
3699         z_APDU(print, &apdu, 0, 0);
3700         odr_destroy(print);
3701     }
3702     return apdu;
3703 }
3704
3705 ZOOM_API(void)
3706     ZOOM_package_send(ZOOM_package p, const char *type)
3707 {
3708     Z_APDU *apdu = 0;
3709     ZOOM_connection c;
3710     if (!p)
3711         return;
3712     c = p->connection;
3713     odr_reset(p->odr_out);
3714     xfree(p->buf_out);
3715     p->buf_out = 0;
3716     if (!strcmp(type, "itemorder"))
3717     {
3718         apdu = create_es_package(p, yaz_oid_extserv_item_order);
3719         if (apdu)
3720         {
3721             Z_External *r = (Z_External *) odr_malloc(p->odr_out, sizeof(*r));
3722
3723             r->direct_reference =
3724                 odr_oiddup(p->odr_out, yaz_oid_extserv_item_order);
3725             r->descriptor = 0;
3726             r->which = Z_External_itemOrder;
3727             r->indirect_reference = 0;
3728             r->u.itemOrder = encode_item_order(p);
3729
3730             apdu->u.extendedServicesRequest->taskSpecificParameters = r;
3731         }
3732     }
3733     else if (!strcmp(type, "create"))  /* create database */
3734     {
3735         apdu = create_admin_package(p, Z_ESAdminOriginPartToKeep_create,
3736                                     0, 0);
3737     }
3738     else if (!strcmp(type, "drop"))  /* drop database */
3739     {
3740         apdu = create_admin_package(p, Z_ESAdminOriginPartToKeep_drop,
3741                                     0, 0);
3742     }
3743     else if (!strcmp(type, "commit"))  /* commit changes */
3744     {
3745         apdu = create_admin_package(p, Z_ESAdminOriginPartToKeep_commit,
3746                                     0, 0);
3747     }
3748     else if (!strcmp(type, "update")) /* update record(s) */
3749     {
3750         apdu = create_update_package(p);
3751     }
3752     else if (!strcmp(type, "xmlupdate"))
3753     {
3754         apdu = create_xmlupdate_package(p);
3755     }
3756     if (apdu)
3757     {
3758         if (encode_APDU(p->connection, apdu, p->odr_out) == 0)
3759         {
3760             char *buf;
3761
3762             ZOOM_task task = ZOOM_connection_add_task(c, ZOOM_TASK_PACKAGE);
3763             task->u.package = p;
3764             buf = odr_getbuf(p->odr_out, &p->len_out, 0);
3765             p->buf_out = (char *) xmalloc(p->len_out);
3766             memcpy(p->buf_out, buf, p->len_out);
3767
3768             (p->refcount)++;
3769             if (!c->async)
3770             {
3771                 while (ZOOM_event(1, &c))
3772                     ;
3773             }
3774         }
3775     }
3776 }
3777
3778 ZOOM_API(ZOOM_package)
3779     ZOOM_connection_package(ZOOM_connection c, ZOOM_options options)
3780 {
3781     ZOOM_package p = (ZOOM_package) xmalloc(sizeof(*p));
3782
3783     p->connection = c;
3784     p->odr_out = odr_createmem(ODR_ENCODE);
3785     p->options = ZOOM_options_create_with_parent2(options, c->options);
3786     p->refcount = 1;
3787     p->buf_out = 0;
3788     p->len_out = 0;
3789     return p;
3790 }
3791
3792 ZOOM_API(void)
3793     ZOOM_package_destroy(ZOOM_package p)
3794 {
3795     if (!p)
3796         return;
3797     (p->refcount)--;
3798     if (p->refcount == 0)
3799     {
3800         odr_destroy(p->odr_out);
3801         xfree(p->buf_out);
3802
3803         ZOOM_options_destroy(p->options);
3804         xfree(p);
3805     }
3806 }
3807
3808 ZOOM_API(const char *)
3809     ZOOM_package_option_get(ZOOM_package p, const char *key)
3810 {
3811     return ZOOM_options_get(p->options, key);
3812 }
3813
3814 ZOOM_API(const char *)
3815     ZOOM_package_option_getl(ZOOM_package p, const char *key, int *lenp)
3816 {
3817     return ZOOM_options_getl(p->options, key, lenp);
3818 }
3819
3820 ZOOM_API(void)
3821     ZOOM_package_option_set(ZOOM_package p, const char *key,
3822                             const char *val)
3823 {
3824     ZOOM_options_set(p->options, key, val);
3825 }
3826
3827 ZOOM_API(void)
3828     ZOOM_package_option_setl(ZOOM_package p, const char *key,
3829                              const char *val, int len)
3830 {
3831     ZOOM_options_setl(p->options, key, val, len);
3832 }
3833
3834 ZOOM_API(int)
3835     ZOOM_connection_exec_task(ZOOM_connection c)
3836 {
3837     ZOOM_task task = c->tasks;
3838     zoom_ret ret = zoom_complete;
3839
3840     if (!task)
3841         return 0;
3842     yaz_log(log_details, "%p ZOOM_connection_exec_task type=%d run=%d",
3843             c, task->which, task->running);
3844     if (c->error != ZOOM_ERROR_NONE)
3845     {
3846         yaz_log(log_details, "%p ZOOM_connection_exec_task "
3847                 "removing tasks because of error = %d", c, c->error);
3848         ZOOM_connection_remove_tasks(c);
3849         return 0;
3850     }
3851     if (task->running)
3852     {
3853         yaz_log(log_details, "%p ZOOM_connection_exec_task "
3854                 "task already running", c);
3855         return 0;
3856     }
3857     task->running = 1;
3858     ret = zoom_complete;
3859     if (c->cs || task->which == ZOOM_TASK_CONNECT)
3860     {
3861         switch (task->which)
3862         {
3863         case ZOOM_TASK_SEARCH:
3864             if (c->proto == PROTO_HTTP)
3865                 ret = ZOOM_connection_srw_send_search(c);
3866             else
3867                 ret = ZOOM_connection_send_search(c);
3868             break;
3869         case ZOOM_TASK_RETRIEVE:
3870             if (c->proto == PROTO_HTTP)
3871                 ret = ZOOM_connection_srw_send_search(c);
3872             else
3873                 ret = send_present(c);
3874             break;
3875         case ZOOM_TASK_CONNECT:
3876             ret = do_connect(c);
3877             break;
3878         case ZOOM_TASK_SCAN:
3879             if (c->proto == PROTO_HTTP)
3880                 ret = ZOOM_connection_srw_send_scan(c);
3881             else
3882                 ret = ZOOM_connection_send_scan(c);
3883             break;
3884         case ZOOM_TASK_PACKAGE:
3885             ret = send_package(c);
3886             break;
3887         case ZOOM_TASK_SORT:
3888             c->tasks->u.sort.resultset->r_sort_spec =
3889                 c->tasks->u.sort.q->sort_spec;
3890             ret = send_sort(c, c->tasks->u.sort.resultset);
3891             break;
3892         }
3893     }
3894     else
3895     {
3896         yaz_log(log_details, "%p ZOOM_connection_exec_task "
3897                 "remove tasks because no connection exist", c);
3898         ZOOM_connection_remove_tasks(c);
3899     }
3900     if (ret == zoom_complete)
3901     {
3902         yaz_log(log_details, "%p ZOOM_connection_exec_task "
3903                 "task removed (complete)", c);
3904         ZOOM_connection_remove_task(c);
3905         return 0;
3906     }
3907     yaz_log(log_details, "%p ZOOM_connection_exec_task "
3908             "task pending", c);
3909     return 1;
3910 }
3911
3912 static zoom_ret send_sort_present(ZOOM_connection c)
3913 {
3914     zoom_ret r = zoom_complete;
3915
3916     if (c->tasks && c->tasks->which == ZOOM_TASK_SEARCH)
3917         r = send_sort(c, c->tasks->u.search.resultset);
3918     if (r == zoom_complete)
3919         r = send_present(c);
3920     return r;
3921 }
3922
3923 static int es_response_taskpackage_update(ZOOM_connection c,
3924                 Z_IUUpdateTaskPackage *utp)
3925 {
3926         if (utp && utp->targetPart)
3927         {
3928                 Z_IUTargetPart *targetPart = utp->targetPart;
3929                 switch ( *targetPart->updateStatus ) {
3930                         case Z_IUTargetPart_success:
3931                                 ZOOM_options_set(c->tasks->u.package->options,"updateStatus", "success");
3932                                 break;
3933                         case Z_IUTargetPart_partial:
3934                                 ZOOM_options_set(c->tasks->u.package->options,"updateStatus", "partial");
3935                                 break;
3936                         case Z_IUTargetPart_failure:
3937                                 ZOOM_options_set(c->tasks->u.package->options,"updateStatus", "failure");
3938                                 if (targetPart->globalDiagnostics && targetPart->num_globalDiagnostics > 0)
3939                                         response_diag(c, targetPart->globalDiagnostics[0]);
3940                                 break;
3941                 }
3942                 // NOTE: Individual record status, surrogate diagnostics, and supplemental diagnostics ARE NOT REPORTED.
3943         }
3944     return 1;
3945 }
3946
3947 static int es_response_taskpackage(ZOOM_connection c,
3948                                    Z_TaskPackage *taskPackage)
3949 {
3950         // targetReference
3951         Odr_oct *id = taskPackage->targetReference;
3952         if (id)
3953                 ZOOM_options_setl(c->tasks->u.package->options,
3954                                                         "targetReference", (char*) id->buf, id->len);
3955
3956         // taskStatus
3957         switch ( *taskPackage->taskStatus ) {
3958                 case Z_TaskPackage_pending:
3959                         ZOOM_options_set(c->tasks->u.package->options,"taskStatus", "pending");
3960                         break;
3961                 case Z_TaskPackage_active:
3962                         ZOOM_options_set(c->tasks->u.package->options,"taskStatus", "active");
3963                         break;
3964                 case Z_TaskPackage_complete:
3965                         ZOOM_options_set(c->tasks->u.package->options,"taskStatus", "complete");
3966                         break;
3967                 case Z_TaskPackage_aborted:
3968                         ZOOM_options_set(c->tasks->u.package->options,"taskStatus", "aborted");
3969                         if ( taskPackage->num_packageDiagnostics && taskPackage->packageDiagnostics )
3970                                 response_diag(c, taskPackage->packageDiagnostics[0]);
3971                         break;
3972         }
3973
3974         // taskSpecificParameters
3975         // NOTE: Only Update implemented, no others.
3976         if ( taskPackage->taskSpecificParameters->which == Z_External_update ) {
3977                         Z_IUUpdateTaskPackage *utp = taskPackage->taskSpecificParameters->u.update->u.taskPackage;
3978                         es_response_taskpackage_update(c, utp);
3979         }
3980         return 1;
3981 }
3982
3983
3984 static int es_response(ZOOM_connection c,
3985                        Z_ExtendedServicesResponse *res)
3986 {
3987     if (!c->tasks || c->tasks->which != ZOOM_TASK_PACKAGE)
3988         return 0;
3989     switch (*res->operationStatus) {
3990         case Z_ExtendedServicesResponse_done:
3991             ZOOM_options_set(c->tasks->u.package->options,"operationStatus", "done");
3992             break;
3993         case Z_ExtendedServicesResponse_accepted:
3994             ZOOM_options_set(c->tasks->u.package->options,"operationStatus", "accepted");
3995             break;
3996         case Z_ExtendedServicesResponse_failure:
3997             ZOOM_options_set(c->tasks->u.package->options,"operationStatus", "failure");
3998             if (res->diagnostics && res->num_diagnostics > 0)
3999                 response_diag(c, res->diagnostics[0]);
4000             break;
4001     }
4002     if (res->taskPackage &&
4003         res->taskPackage->which == Z_External_extendedService)
4004     {
4005         Z_TaskPackage *taskPackage = res->taskPackage->u.extendedService;
4006         es_response_taskpackage(c, taskPackage);
4007     }
4008     if (res->taskPackage &&
4009         res->taskPackage->which == Z_External_octet)
4010     {
4011         Odr_oct *doc = res->taskPackage->u.octet_aligned;
4012         ZOOM_options_setl(c->tasks->u.package->options,
4013                           "xmlUpdateDoc", (char*) doc->buf, doc->len);
4014     }
4015     return 1;
4016 }
4017
4018 static void interpret_init_diag(ZOOM_connection c,
4019                                 Z_DiagnosticFormat *diag)
4020 {
4021     if (diag->num > 0)
4022     {
4023         Z_DiagnosticFormat_s *ds = diag->elements[0];
4024         if (ds->which == Z_DiagnosticFormat_s_defaultDiagRec)
4025             response_default_diag(c, ds->u.defaultDiagRec);
4026     }
4027 }
4028
4029
4030 static void interpret_otherinformation_field(ZOOM_connection c,
4031                                              Z_OtherInformation *ui)
4032 {
4033     int i;
4034     for (i = 0; i < ui->num_elements; i++)
4035     {
4036         Z_OtherInformationUnit *unit = ui->list[i];
4037         if (unit->which == Z_OtherInfo_externallyDefinedInfo &&
4038             unit->information.externallyDefinedInfo &&
4039             unit->information.externallyDefinedInfo->which ==
4040             Z_External_diag1)
4041         {
4042             interpret_init_diag(c, unit->information.externallyDefinedInfo->u.diag1);
4043         }
4044     }
4045 }
4046
4047
4048 static void set_init_option(const char *name, void *clientData) {
4049     ZOOM_connection c = (ZOOM_connection) clientData;
4050     char buf[80];
4051
4052     sprintf(buf, "init_opt_%.70s", name);
4053     ZOOM_connection_option_set(c, buf, "1");
4054 }
4055
4056
4057 static void recv_apdu(ZOOM_connection c, Z_APDU *apdu)
4058 {
4059     Z_InitResponse *initrs;
4060
4061     ZOOM_connection_set_mask(c, 0);
4062     yaz_log(log_details, "%p recv_apdu apdu->which=%d", c, apdu->which);
4063     switch(apdu->which)
4064     {
4065     case Z_APDU_initResponse:
4066         yaz_log(log_api, "%p recv_apdu: Received Init response", c);
4067         initrs = apdu->u.initResponse;
4068         ZOOM_connection_option_set(c, "serverImplementationId",
4069                                    initrs->implementationId ?
4070                                    initrs->implementationId : "");
4071         ZOOM_connection_option_set(c, "serverImplementationName",
4072                                    initrs->implementationName ?
4073                                    initrs->implementationName : "");
4074         ZOOM_connection_option_set(c, "serverImplementationVersion",
4075                                    initrs->implementationVersion ?
4076                                    initrs->implementationVersion : "");
4077         /* Set the three old options too, for old applications */
4078         ZOOM_connection_option_set(c, "targetImplementationId",
4079                                    initrs->implementationId ?
4080                                    initrs->implementationId : "");
4081         ZOOM_connection_option_set(c, "targetImplementationName",
4082                                    initrs->implementationName ?
4083                                    initrs->implementationName : "");
4084         ZOOM_connection_option_set(c, "targetImplementationVersion",
4085                                    initrs->implementationVersion ?
4086                                    initrs->implementationVersion : "");
4087
4088         /* Make initrs->options available as ZOOM-level options */
4089         yaz_init_opt_decode(initrs->options, set_init_option, (void*) c);
4090
4091         if (!*initrs->result)
4092         {
4093             Z_External *uif = initrs->userInformationField;
4094
4095             set_ZOOM_error(c, ZOOM_ERROR_INIT, 0); /* default error */
4096
4097             if (uif && uif->which == Z_External_userInfo1)
4098                 interpret_otherinformation_field(c, uif->u.userInfo1);
4099         }
4100         else
4101         {
4102             char *cookie =
4103                 yaz_oi_get_string_oid(&apdu->u.initResponse->otherInfo,
4104                                       yaz_oid_userinfo_cookie, 1, 0);
4105             xfree(c->cookie_in);
4106             c->cookie_in = 0;
4107             if (cookie)
4108                 c->cookie_in = xstrdup(cookie);
4109             if (ODR_MASK_GET(initrs->options, Z_Options_namedResultSets) &&
4110                 ODR_MASK_GET(initrs->protocolVersion, Z_ProtocolVersion_3))
4111                 c->support_named_resultsets = 1;
4112             if (c->tasks)
4113             {
4114                 assert(c->tasks->which == ZOOM_TASK_CONNECT);
4115                 ZOOM_connection_remove_task(c);
4116             }
4117             ZOOM_connection_exec_task(c);
4118         }
4119         if (ODR_MASK_GET(initrs->options, Z_Options_negotiationModel))
4120         {
4121             NMEM tmpmem = nmem_create();
4122             Z_CharSetandLanguageNegotiation *p =
4123                 yaz_get_charneg_record(initrs->otherInfo);
4124
4125             if (p)
4126             {
4127                 char *charset = NULL, *lang = NULL;
4128                 int sel;
4129
4130                 yaz_get_response_charneg(tmpmem, p, &charset, &lang, &sel);
4131                 yaz_log(log_details, "%p recv_apdu target accepted: "
4132                         "charset %s, language %s, select %d",
4133                         c,
4134                         charset ? charset : "none", lang ? lang : "none", sel);
4135                 if (charset)
4136                     ZOOM_connection_option_set(c, "negotiation-charset",
4137                                                charset);
4138                 if (lang)
4139                     ZOOM_connection_option_set(c, "negotiation-lang",
4140                                                lang);
4141
4142                 ZOOM_connection_option_set(
4143                     c,  "negotiation-charset-in-effect-for-records",
4144                     (sel != 0) ? "1" : "0");
4145                 nmem_destroy(tmpmem);
4146             }
4147         }
4148         break;
4149     case Z_APDU_searchResponse:
4150         yaz_log(log_api, "%p recv_apdu Search response", c);
4151         handle_search_response(c, apdu->u.searchResponse);
4152         if (send_sort_present(c) == zoom_complete)
4153             ZOOM_connection_remove_task(c);
4154         break;
4155     case Z_APDU_presentResponse:
4156         yaz_log(log_api, "%p recv_apdu Present response", c);
4157         handle_present_response(c, apdu->u.presentResponse);
4158         if (send_present(c) == zoom_complete)
4159             ZOOM_connection_remove_task(c);
4160         break;
4161     case Z_APDU_sortResponse:
4162         yaz_log(log_api, "%p recv_apdu Sort response", c);
4163         sort_response(c, apdu->u.sortResponse);
4164         if (send_present(c) == zoom_complete)
4165             ZOOM_connection_remove_task(c);
4166         break;
4167     case Z_APDU_scanResponse:
4168         yaz_log(log_api, "%p recv_apdu Scan response", c);
4169         scan_response(c, apdu->u.scanResponse);
4170         ZOOM_connection_remove_task(c);
4171         break;
4172     case Z_APDU_extendedServicesResponse:
4173         yaz_log(log_api, "%p recv_apdu Extended Services response", c);
4174         es_response(c, apdu->u.extendedServicesResponse);
4175         ZOOM_connection_remove_task(c);
4176         break;
4177     case Z_APDU_close:
4178         yaz_log(log_api, "%p recv_apdu Close PDU", c);
4179         if (!ZOOM_test_reconnect(c))
4180         {
4181             set_ZOOM_error(c, ZOOM_ERROR_CONNECTION_LOST, c->host_port);
4182             do_close(c);
4183         }
4184         break;
4185     default:
4186         yaz_log(log_api, "%p Received unknown PDU", c);
4187         set_ZOOM_error(c, ZOOM_ERROR_DECODE, 0);
4188         do_close(c);
4189     }
4190 }
4191
4192 #if YAZ_HAVE_XML2
4193 static zoom_ret handle_srw_response(ZOOM_connection c,
4194                                     Z_SRW_searchRetrieveResponse *res)
4195 {
4196     ZOOM_resultset resultset = 0;
4197     int i;
4198     NMEM nmem;
4199     ZOOM_Event event;
4200     int *start, *count;
4201     const char *syntax, *elementSetName;
4202
4203     if (!c->tasks)
4204         return zoom_complete;
4205
4206     switch(c->tasks->which)
4207     {
4208     case ZOOM_TASK_SEARCH:
4209         resultset = c->tasks->u.search.resultset;
4210         start = &c->tasks->u.search.start;
4211         count = &c->tasks->u.search.count;
4212         syntax = c->tasks->u.search.syntax;
4213         elementSetName = c->tasks->u.search.elementSetName;
4214
4215         if (!c->tasks->u.search.recv_search_fired)
4216         {
4217             event = ZOOM_Event_create(ZOOM_EVENT_RECV_SEARCH);
4218             ZOOM_connection_put_event(c, event);
4219             c->tasks->u.search.recv_search_fired = 1;
4220         }
4221         break;
4222     case ZOOM_TASK_RETRIEVE:
4223         resultset = c->tasks->u.retrieve.resultset;
4224         start = &c->tasks->u.retrieve.start;
4225         count = &c->tasks->u.retrieve.count;
4226         syntax = c->tasks->u.retrieve.syntax;
4227         elementSetName = c->tasks->u.retrieve.elementSetName;
4228         break;
4229     default:
4230         return zoom_complete;
4231     }
4232
4233     resultset->size = 0;
4234
4235     if (res->resultSetId)
4236         ZOOM_resultset_option_set(resultset, "resultSetId", res->resultSetId);
4237
4238     yaz_log(log_details, "%p handle_srw_response got SRW response OK", c);
4239
4240     if (res->num_diagnostics > 0)
4241     {
4242         set_SRU_error(c, &res->diagnostics[0]);
4243     }
4244     else
4245     {
4246         if (res->numberOfRecords)
4247             resultset->size = *res->numberOfRecords;
4248         for (i = 0; i<res->num_records; i++)
4249         {
4250             int pos;
4251             Z_SRW_record *sru_rec;
4252             Z_SRW_diagnostic *diag = 0;
4253             int num_diag;
4254
4255             Z_NamePlusRecord *npr = (Z_NamePlusRecord *)
4256                 odr_malloc(c->odr_in, sizeof(Z_NamePlusRecord));
4257
4258             if (res->records[i].recordPosition &&
4259                 *res->records[i].recordPosition > 0)
4260                 pos = *res->records[i].recordPosition - 1;
4261             else
4262                 pos = *start + i;
4263
4264             sru_rec = &res->records[i];
4265
4266             npr->databaseName = 0;
4267             npr->which = Z_NamePlusRecord_databaseRecord;
4268             npr->u.databaseRecord = (Z_External *)
4269                 odr_malloc(c->odr_in, sizeof(Z_External));
4270             npr->u.databaseRecord->descriptor = 0;
4271             npr->u.databaseRecord->direct_reference =
4272                 odr_oiddup(c->odr_in, yaz_oid_recsyn_xml);
4273             npr->u.databaseRecord->which = Z_External_octet;
4274
4275             npr->u.databaseRecord->u.octet_aligned = (Odr_oct *)
4276                 odr_malloc(c->odr_in, sizeof(Odr_oct));
4277             npr->u.databaseRecord->u.octet_aligned->buf = (unsigned char*)
4278                 sru_rec->recordData_buf;
4279             npr->u.databaseRecord->u.octet_aligned->len =
4280                 npr->u.databaseRecord->u.octet_aligned->size =
4281                 sru_rec->recordData_len;
4282
4283             if (sru_rec->recordSchema
4284                 && !strcmp(sru_rec->recordSchema,
4285                            "info:srw/schema/1/diagnostics-v1.1"))
4286             {
4287                 sru_decode_surrogate_diagnostics(sru_rec->recordData_buf,
4288                                                  sru_rec->recordData_len,
4289                                                  &diag, &num_diag,
4290                                                  resultset->odr);
4291             }
4292             record_cache_add(resultset, npr, pos, syntax, elementSetName,
4293                              sru_rec->recordSchema, diag);
4294         }
4295         *count -= i;
4296         *start += i;
4297         if (*count + *start > resultset->size)
4298             *count = resultset->size - *start;
4299         if (*count < 0)
4300             *count = 0;
4301
4302         nmem = odr_extract_mem(c->odr_in);
4303         nmem_transfer(odr_getmem(resultset->odr), nmem);
4304         nmem_destroy(nmem);
4305
4306         if (*count > 0)
4307             return ZOOM_connection_srw_send_search(c);
4308     }
4309     return zoom_complete;
4310 }
4311 #endif
4312
4313 #if YAZ_HAVE_XML2
4314 static void handle_srw_scan_response(ZOOM_connection c,
4315                                      Z_SRW_scanResponse *res)
4316 {
4317     NMEM nmem = odr_extract_mem(c->odr_in);
4318     ZOOM_scanset scan;
4319
4320     if (!c->tasks || c->tasks->which != ZOOM_TASK_SCAN)
4321         return;
4322     scan = c->tasks->u.scan.scan;
4323
4324     if (res->num_diagnostics > 0)
4325         set_SRU_error(c, &res->diagnostics[0]);
4326
4327     scan->scan_response = 0;
4328     scan->srw_scan_response = res;
4329     nmem_transfer(odr_getmem(scan->odr), nmem);
4330
4331     ZOOM_options_set_int(scan->options, "number", res->num_terms);
4332     nmem_destroy(nmem);
4333 }
4334 #endif
4335
4336 #if YAZ_HAVE_XML2
4337 static Z_GDU *get_HTTP_Request_url(ODR odr, const char *url)
4338 {
4339     Z_GDU *p = z_get_HTTP_Request(odr);
4340     const char *host = url;
4341     const char *cp0 = strstr(host, "://");
4342     const char *cp1 = 0;
4343     if (cp0)
4344         cp0 = cp0+3;
4345     else
4346         cp0 = host;
4347
4348     cp1 = strchr(cp0, '/');
4349     if (!cp1)
4350         cp1 = cp0 + strlen(cp0);
4351
4352     if (cp0 && cp1)
4353     {
4354         char *h = (char*) odr_malloc(odr, cp1 - cp0 + 1);
4355         memcpy (h, cp0, cp1 - cp0);
4356         h[cp1-cp0] = '\0';
4357         z_HTTP_header_add(odr, &p->u.HTTP_Request->headers, "Host", h);
4358     }
4359     p->u.HTTP_Request->path = odr_strdup(odr, *cp1 ? cp1 : "/");
4360     return p;
4361 }
4362
4363 static zoom_ret send_SRW_redirect(ZOOM_connection c, const char *uri,
4364                                   Z_HTTP_Response *cookie_hres)
4365 {
4366     struct Z_HTTP_Header *h;
4367     Z_GDU *gdu = get_HTTP_Request_url(c->odr_out, uri);
4368     char *combined_cookies;
4369     int combined_cookies_len = 0;
4370
4371     gdu->u.HTTP_Request->method = odr_strdup(c->odr_out, "GET");
4372     z_HTTP_header_add(c->odr_out, &gdu->u.HTTP_Request->headers, "Accept",
4373                       "text/xml");
4374
4375     for (h = cookie_hres->headers; h; h = h->next)
4376     {
4377         if (!strcmp(h->name, "Set-Cookie"))
4378         {
4379             char *cp;
4380
4381             if (!(cp = strchr(h->value, ';')))
4382                 cp = h->value + strlen(h->value);
4383             if (cp - h->value >= 1) {
4384                 combined_cookies = xrealloc(combined_cookies, combined_cookies_len + cp - h->value + 3);
4385                 memcpy(combined_cookies+combined_cookies_len, h->value, cp - h->value);
4386                 combined_cookies[combined_cookies_len + cp - h->value] = '\0';
4387                 strcat(combined_cookies,"; ");
4388                 combined_cookies_len = strlen(combined_cookies);
4389             }
4390         }
4391     }
4392
4393     if (combined_cookies_len)
4394     {
4395         z_HTTP_header_add(c->odr_out, &gdu->u.HTTP_Request->headers,
4396                           "Cookie", combined_cookies);
4397         xfree(combined_cookies);
4398     }
4399
4400     if (c->user && c->password)
4401     {
4402         z_HTTP_header_add_basic_auth(c->odr_out, &gdu->u.HTTP_Request->headers,
4403                                      c->user, c->password);
4404     }
4405     if (!z_GDU(c->odr_out, &gdu, 0, 0))
4406         return zoom_complete;
4407     if (c->odr_print)
4408         z_GDU(c->odr_print, &gdu, 0, 0);
4409     c->buf_out = odr_getbuf(c->odr_out, &c->len_out, 0);
4410
4411     odr_reset(c->odr_out);
4412     return do_write(c);
4413 }
4414
4415 static void handle_http(ZOOM_connection c, Z_HTTP_Response *hres)
4416 {
4417     zoom_ret cret = zoom_complete;
4418     int ret = -1;
4419     const char *addinfo = 0;
4420     const char *connection_head = z_HTTP_header_lookup(hres->headers,
4421                                                        "Connection");
4422     const char *location;
4423
4424     ZOOM_connection_set_mask(c, 0);
4425     yaz_log(log_details, "%p handle_http", c);
4426
4427     if ((hres->code == 301 || hres->code == 302) && c->sru_mode == zoom_sru_get
4428         && (location = z_HTTP_header_lookup(hres->headers, "Location")))
4429     {
4430         c->no_redirects++;
4431         if (c->no_redirects > 10)
4432         {
4433             set_HTTP_error(c, hres->code, 0, 0);
4434             c->no_redirects = 0;
4435             do_close(c);
4436         }
4437         else
4438         {
4439             /* since redirect may change host we just reconnect. A smarter
4440                implementation might check whether it's the same server */
4441             do_connect_host(c, location, 0);
4442             send_SRW_redirect(c, location, hres);
4443             /* we're OK for now. Operation is not really complete */
4444             ret = 0;
4445             cret = zoom_pending;
4446         }
4447     }
4448     else
4449     {   /* not redirect (normal response) */
4450         if (!yaz_srw_check_content_type(hres))
4451             addinfo = "content-type";
4452         else
4453         {
4454             Z_SOAP *soap_package = 0;
4455             ODR o = c->odr_in;
4456             Z_SOAP_Handler soap_handlers[2] = {
4457                 {YAZ_XMLNS_SRU_v1_1, 0, (Z_SOAP_fun) yaz_srw_codec},
4458                 {0, 0, 0}
4459             };
4460             ret = z_soap_codec(o, &soap_package,
4461                                &hres->content_buf, &hres->content_len,
4462                                soap_handlers);
4463             if (!ret && soap_package->which == Z_SOAP_generic &&
4464                 soap_package->u.generic->no == 0)
4465             {
4466                 Z_SRW_PDU *sr = (Z_SRW_PDU*) soap_package->u.generic->p;
4467
4468                 ZOOM_options_set(c->options, "sru_version", sr->srw_version);
4469                 ZOOM_options_setl(c->options, "sru_extra_response_data",
4470                                   sr->extraResponseData_buf, sr->extraResponseData_len);
4471                 if (sr->which == Z_SRW_searchRetrieve_response)
4472                     cret = handle_srw_response(c, sr->u.response);
4473                 else if (sr->which == Z_SRW_scan_response)
4474                     handle_srw_scan_response(c, sr->u.scan_response);
4475                 else
4476                     ret = -1;
4477             }
4478             else if (!ret && (soap_package->which == Z_SOAP_fault
4479                               || soap_package->which == Z_SOAP_error))
4480             {
4481                 set_HTTP_error(c, hres->code,
4482                                soap_package->u.fault->fault_code,
4483                                soap_package->u.fault->fault_string);
4484             }
4485             else
4486                 ret = -1;
4487         }
4488         if (ret == 0)
4489         {
4490             if (c->no_redirects) /* end of redirect. change hosts again */
4491                 do_close(c);
4492         }
4493         c->no_redirects = 0;
4494     }
4495     if (ret)
4496     {
4497         if (hres->code != 200)
4498             set_HTTP_error(c, hres->code, 0, 0);
4499         else
4500             set_ZOOM_error(c, ZOOM_ERROR_DECODE, addinfo);
4501         do_close(c);
4502     }
4503     if (cret == zoom_complete)
4504     {
4505         yaz_log(YLOG_LOG, "removing tasks in handle_http");
4506         ZOOM_connection_remove_task(c);
4507     }
4508     {
4509         int must_close = 0;
4510         if (!strcmp(hres->version, "1.0"))
4511         {
4512             /* HTTP 1.0: only if Keep-Alive we stay alive.. */
4513             if (!connection_head || strcmp(connection_head, "Keep-Alive"))
4514                 must_close = 1;
4515         }
4516         else
4517         {
4518             /* HTTP 1.1: only if no close we stay alive.. */
4519             if (connection_head && !strcmp(connection_head, "close"))
4520                 must_close = 1;
4521         }
4522         if (must_close)
4523         {
4524             do_close(c);
4525             if (c->tasks)
4526             {
4527                 c->tasks->running = 0;
4528                 ZOOM_connection_insert_task(c, ZOOM_TASK_CONNECT);
4529                 c->reconnect_ok = 0;
4530             }
4531         }
4532     }
4533 }
4534 #endif
4535
4536 static int do_read(ZOOM_connection c)
4537 {
4538     int r, more;
4539     ZOOM_Event event;
4540
4541     event = ZOOM_Event_create(ZOOM_EVENT_RECV_DATA);
4542     ZOOM_connection_put_event(c, event);
4543
4544     r = cs_get(c->cs, &c->buf_in, &c->len_in);
4545     more = cs_more(c->cs);
4546     yaz_log(log_details, "%p do_read len=%d more=%d", c, r, more);
4547     if (r == 1)
4548         return 0;
4549     if (r <= 0)
4550     {
4551         if (!ZOOM_test_reconnect(c))
4552         {
4553             set_ZOOM_error(c, ZOOM_ERROR_CONNECTION_LOST, c->host_port);
4554             do_close(c);
4555         }
4556     }
4557     else
4558     {
4559         Z_GDU *gdu;
4560         ZOOM_Event event;
4561
4562         odr_reset(c->odr_in);
4563         odr_setbuf(c->odr_in, c->buf_in, r, 0);
4564         event = ZOOM_Event_create(ZOOM_EVENT_RECV_APDU);
4565         ZOOM_connection_put_event(c, event);
4566
4567         if (!z_GDU(c->odr_in, &gdu, 0, 0))
4568         {
4569             int x;
4570             int err = odr_geterrorx(c->odr_in, &x);
4571             char msg[100];
4572             const char *element = odr_getelement(c->odr_in);
4573             yaz_snprintf(msg, sizeof(msg),
4574                     "ODR code %d:%d element=%s offset=%d",
4575                     err, x, element ? element : "<unknown>",
4576                     odr_offset(c->odr_in));
4577             set_ZOOM_error(c, ZOOM_ERROR_DECODE, msg);
4578             if (log_api)
4579             {
4580                 FILE *ber_file = yaz_log_file();
4581                 if (ber_file)
4582                     odr_dumpBER(ber_file, c->buf_in, r);
4583             }
4584             do_close(c);
4585         }
4586         else
4587         {
4588             if (c->odr_print)
4589                 z_GDU(c->odr_print, &gdu, 0, 0);
4590             if (gdu->which == Z_GDU_Z3950)
4591                 recv_apdu(c, gdu->u.z3950);
4592             else if (gdu->which == Z_GDU_HTTP_Response)
4593             {
4594 #if YAZ_HAVE_XML2
4595                 handle_http(c, gdu->u.HTTP_Response);
4596 #else
4597                 set_ZOOM_error(c, ZOOM_ERROR_DECODE, 0);
4598                 do_close(c);
4599 #endif
4600             }
4601         }
4602         c->reconnect_ok = 0;
4603     }
4604     return 1;
4605 }
4606
4607 static zoom_ret do_write_ex(ZOOM_connection c, char *buf_out, int len_out)
4608 {
4609     int r;
4610     ZOOM_Event event;
4611
4612     event = ZOOM_Event_create(ZOOM_EVENT_SEND_DATA);
4613     ZOOM_connection_put_event(c, event);
4614
4615     yaz_log(log_details, "%p do_write_ex len=%d", c, len_out);
4616     if ((r = cs_put(c->cs, buf_out, len_out)) < 0)
4617     {
4618         yaz_log(log_details, "%p do_write_ex write failed", c);
4619         if (ZOOM_test_reconnect(c))
4620         {
4621             return zoom_pending;
4622         }
4623         if (c->state == STATE_CONNECTING)
4624             set_ZOOM_error(c, ZOOM_ERROR_CONNECT, c->host_port);
4625         else
4626             set_ZOOM_error(c, ZOOM_ERROR_CONNECTION_LOST, c->host_port);
4627         do_close(c);
4628         return zoom_complete;
4629     }
4630     else if (r == 1)
4631     {
4632         int mask = ZOOM_SELECT_EXCEPT;
4633         if (c->cs->io_pending & CS_WANT_WRITE)
4634             mask += ZOOM_SELECT_WRITE;
4635         if (c->cs->io_pending & CS_WANT_READ)
4636             mask += ZOOM_SELECT_READ;
4637         ZOOM_connection_set_mask(c, mask);
4638         yaz_log(log_details, "%p do_write_ex write incomplete mask=%d",
4639                 c, c->mask);
4640     }
4641     else
4642     {
4643         ZOOM_connection_set_mask(c, ZOOM_SELECT_READ|ZOOM_SELECT_EXCEPT);
4644         yaz_log(log_details, "%p do_write_ex write complete mask=%d",
4645                 c, c->mask);
4646     }
4647     return zoom_pending;
4648 }
4649
4650 static zoom_ret do_write(ZOOM_connection c)
4651 {
4652     return do_write_ex(c, c->buf_out, c->len_out);
4653 }
4654
4655
4656 ZOOM_API(const char *)
4657     ZOOM_connection_option_get(ZOOM_connection c, const char *key)
4658 {
4659     return ZOOM_options_get(c->options, key);
4660 }
4661
4662 ZOOM_API(const char *)
4663     ZOOM_connection_option_getl(ZOOM_connection c, const char *key, int *lenp)
4664 {
4665     return ZOOM_options_getl(c->options, key, lenp);
4666 }
4667
4668 ZOOM_API(void)
4669     ZOOM_connection_option_set(ZOOM_connection c, const char *key,
4670                                const char *val)
4671 {
4672     ZOOM_options_set(c->options, key, val);
4673 }
4674
4675 ZOOM_API(void)
4676     ZOOM_connection_option_setl(ZOOM_connection c, const char *key,
4677                                 const char *val, int len)
4678 {
4679     ZOOM_options_setl(c->options, key, val, len);
4680 }
4681
4682 ZOOM_API(const char *)
4683     ZOOM_resultset_option_get(ZOOM_resultset r, const char *key)
4684 {
4685     return ZOOM_options_get(r->options, key);
4686 }
4687
4688 ZOOM_API(void)
4689     ZOOM_resultset_option_set(ZOOM_resultset r, const char *key,
4690                               const char *val)
4691 {
4692     ZOOM_options_set(r->options, key, val);
4693 }
4694
4695
4696 ZOOM_API(int)
4697     ZOOM_connection_errcode(ZOOM_connection c)
4698 {
4699     return ZOOM_connection_error(c, 0, 0);
4700 }
4701
4702 ZOOM_API(const char *)
4703     ZOOM_connection_errmsg(ZOOM_connection c)
4704 {
4705     const char *msg;
4706     ZOOM_connection_error(c, &msg, 0);
4707     return msg;
4708 }
4709
4710 ZOOM_API(const char *)
4711     ZOOM_connection_addinfo(ZOOM_connection c)
4712 {
4713     const char *addinfo;
4714     ZOOM_connection_error(c, 0, &addinfo);
4715     return addinfo;
4716 }
4717
4718 ZOOM_API(const char *)
4719     ZOOM_connection_diagset(ZOOM_connection c)
4720 {
4721     const char *diagset;
4722     ZOOM_connection_error_x(c, 0, 0, &diagset);
4723     return diagset;
4724 }
4725
4726 ZOOM_API(const char *)
4727     ZOOM_diag_str(int error)
4728 {
4729     switch (error)
4730     {
4731     case ZOOM_ERROR_NONE:
4732         return "No error";
4733     case ZOOM_ERROR_CONNECT:
4734         return "Connect failed";
4735     case ZOOM_ERROR_MEMORY:
4736         return "Out of memory";
4737     case ZOOM_ERROR_ENCODE:
4738         return "Encoding failed";
4739     case ZOOM_ERROR_DECODE:
4740         return "Decoding failed";
4741     case ZOOM_ERROR_CONNECTION_LOST:
4742         return "Connection lost";
4743     case ZOOM_ERROR_INIT:
4744         return "Init rejected";
4745     case ZOOM_ERROR_INTERNAL:
4746         return "Internal failure";
4747     case ZOOM_ERROR_TIMEOUT:
4748         return "Timeout";
4749     case ZOOM_ERROR_UNSUPPORTED_PROTOCOL:
4750         return "Unsupported protocol";
4751     case ZOOM_ERROR_UNSUPPORTED_QUERY:
4752         return "Unsupported query type";
4753     case ZOOM_ERROR_INVALID_QUERY:
4754         return "Invalid query";
4755     case ZOOM_ERROR_CQL_PARSE:
4756         return "CQL parsing error";
4757     case ZOOM_ERROR_CQL_TRANSFORM:
4758         return "CQL transformation error";
4759     case ZOOM_ERROR_CCL_CONFIG:
4760         return "CCL configuration error";
4761     case ZOOM_ERROR_CCL_PARSE:
4762         return "CCL parsing error";
4763     default:
4764         return diagbib1_str(error);
4765     }
4766 }
4767
4768 ZOOM_API(int)
4769     ZOOM_connection_error_x(ZOOM_connection c, const char **cp,
4770                             const char **addinfo, const char **diagset)
4771 {
4772     int error = c->error;
4773     if (cp)
4774     {
4775         if (!c->diagset || !strcmp(c->diagset, "ZOOM"))
4776             *cp = ZOOM_diag_str(error);
4777         else if (!strcmp(c->diagset, "HTTP"))
4778             *cp = z_HTTP_errmsg(c->error);
4779         else if (!strcmp(c->diagset, "Bib-1"))
4780             *cp = ZOOM_diag_str(error);
4781         else if (!strcmp(c->diagset, "info:srw/diagnostic/1"))
4782             *cp = yaz_diag_srw_str(c->error);
4783         else
4784             *cp = "Unknown error and diagnostic set";
4785     }
4786     if (addinfo)
4787         *addinfo = c->addinfo ? c->addinfo : "";
4788     if (diagset)
4789         *diagset = c->diagset ? c->diagset : "";
4790     return c->error;
4791 }
4792
4793 ZOOM_API(int)
4794     ZOOM_connection_error(ZOOM_connection c, const char **cp,
4795                           const char **addinfo)
4796 {
4797     return ZOOM_connection_error_x(c, cp, addinfo, 0);
4798 }
4799
4800 static void ZOOM_connection_do_io(ZOOM_connection c, int mask)
4801 {
4802     ZOOM_Event event = 0;
4803     int r = cs_look(c->cs);
4804     yaz_log(log_details, "%p ZOOM_connection_do_io mask=%d cs_look=%d",
4805             c, mask, r);
4806
4807     if (r == CS_NONE)
4808     {
4809         event = ZOOM_Event_create(ZOOM_EVENT_CONNECT);
4810         set_ZOOM_error(c, ZOOM_ERROR_CONNECT, c->host_port);
4811         do_close(c);
4812         ZOOM_connection_put_event(c, event);
4813     }
4814     else if (r == CS_CONNECT)
4815     {
4816         int ret = ret = cs_rcvconnect(c->cs);
4817         yaz_log(log_details, "%p ZOOM_connection_do_io "
4818                 "cs_rcvconnect returned %d", c, ret);
4819         if (ret == 1)
4820         {
4821             int mask = ZOOM_SELECT_EXCEPT;
4822             if (c->cs->io_pending & CS_WANT_WRITE)
4823                 mask += ZOOM_SELECT_WRITE;
4824             if (c->cs->io_pending & CS_WANT_READ)
4825                 mask += ZOOM_SELECT_READ;
4826             ZOOM_connection_set_mask(c, mask);
4827             event = ZOOM_Event_create(ZOOM_EVENT_NONE);
4828             ZOOM_connection_put_event(c, event);
4829         }
4830         else if (ret == 0)
4831         {
4832             event = ZOOM_Event_create(ZOOM_EVENT_CONNECT);
4833             ZOOM_connection_put_event(c, event);
4834             get_cert(c);
4835             if (c->proto == PROTO_Z3950)
4836                 ZOOM_connection_send_init(c);
4837             else
4838             {
4839                 /* no init request for SRW .. */
4840                 assert(c->tasks->which == ZOOM_TASK_CONNECT);
4841                 ZOOM_connection_remove_task(c);
4842                 ZOOM_connection_set_mask(c, 0);
4843                 ZOOM_connection_exec_task(c);
4844             }
4845             c->state = STATE_ESTABLISHED;
4846         }
4847         else
4848         {
4849             set_ZOOM_error(c, ZOOM_ERROR_CONNECT, c->host_port);
4850             do_close(c);
4851         }
4852     }
4853     else
4854     {
4855         if (mask & ZOOM_SELECT_EXCEPT)
4856         {
4857             if (!ZOOM_test_reconnect(c))
4858             {
4859                 set_ZOOM_error(c, ZOOM_ERROR_CONNECTION_LOST, c->host_port);
4860                 do_close(c);
4861             }
4862             return;
4863         }
4864         if (mask & ZOOM_SELECT_READ)
4865             do_read(c);
4866         if (c->cs && (mask & ZOOM_SELECT_WRITE))
4867             do_write(c);
4868     }
4869 }
4870
4871 ZOOM_API(int)
4872     ZOOM_connection_last_event(ZOOM_connection cs)
4873 {
4874     if (!cs)
4875         return ZOOM_EVENT_NONE;
4876     return cs->last_event;
4877 }
4878
4879
4880 static void cql2pqf_wrbuf_puts(const char *buf, void *client_data)
4881 {
4882     WRBUF wrbuf = (WRBUF) client_data;
4883     wrbuf_puts(wrbuf, buf);
4884 }
4885
4886 /*
4887  * Returns an xmalloc()d string containing RPN that corresponds to the
4888  * CQL passed in.  On error, sets the Connection object's error state
4889  * and returns a null pointer.
4890  * ### We could cache CQL parser and/or transformer in Connection.
4891  */
4892 static char *cql2pqf(ZOOM_connection c, const char *cql)
4893 {
4894     CQL_parser parser;
4895     int error;
4896     const char *cqlfile;
4897     cql_transform_t trans;
4898     char *result = 0;
4899
4900     parser = cql_parser_create();
4901     if ((error = cql_parser_string(parser, cql)) != 0) {
4902         cql_parser_destroy(parser);
4903         set_ZOOM_error(c, ZOOM_ERROR_CQL_PARSE, cql);
4904         return 0;
4905     }
4906
4907     cqlfile = ZOOM_connection_option_get(c, "cqlfile");
4908     if (cqlfile == 0)
4909     {
4910         set_ZOOM_error(c, ZOOM_ERROR_CQL_TRANSFORM, "no CQL transform file");
4911     }
4912     else if ((trans = cql_transform_open_fname(cqlfile)) == 0)
4913     {
4914         char buf[512];
4915         sprintf(buf, "can't open CQL transform file '%.200s': %.200s",
4916                 cqlfile, strerror(errno));
4917         set_ZOOM_error(c, ZOOM_ERROR_CQL_TRANSFORM, buf);
4918     }
4919     else
4920     {
4921         WRBUF wrbuf_result = wrbuf_alloc();
4922         error = cql_transform(trans, cql_parser_result(parser),
4923                               cql2pqf_wrbuf_puts, wrbuf_result);
4924         if (error != 0) {
4925             char buf[512];
4926             const char *addinfo;
4927             error = cql_transform_error(trans, &addinfo);
4928             sprintf(buf, "%.200s (addinfo=%.200s)",
4929                     cql_strerror(error), addinfo);
4930             set_ZOOM_error(c, ZOOM_ERROR_CQL_TRANSFORM, buf);
4931         }
4932         else
4933         {
4934             result = xstrdup(wrbuf_cstr(wrbuf_result));
4935         }
4936         cql_transform_close(trans);
4937         wrbuf_destroy(wrbuf_result);
4938     }
4939     cql_parser_destroy(parser);
4940     return result;
4941 }
4942
4943 ZOOM_API(int) ZOOM_connection_fire_event_timeout(ZOOM_connection c)
4944 {
4945     if (c->mask)
4946     {
4947         ZOOM_Event event = ZOOM_Event_create(ZOOM_EVENT_TIMEOUT);
4948         /* timeout and this connection was waiting */
4949         set_ZOOM_error(c, ZOOM_ERROR_TIMEOUT, 0);
4950         do_close(c);
4951         ZOOM_connection_put_event(c, event);
4952     }
4953     return 0;
4954 }
4955
4956 ZOOM_API(int)
4957     ZOOM_connection_process(ZOOM_connection c)
4958 {
4959     ZOOM_Event event;
4960     if (!c)
4961         return 0;
4962
4963     event = ZOOM_connection_get_event(c);
4964     if (event)
4965     {
4966         ZOOM_Event_destroy(event);
4967         return 1;
4968     }
4969     ZOOM_connection_exec_task(c);
4970     event = ZOOM_connection_get_event(c);
4971     if (event)
4972     {
4973         ZOOM_Event_destroy(event);
4974         return 1;
4975     }
4976     return 0;
4977 }
4978
4979 ZOOM_API(int)
4980     ZOOM_event_nonblock(int no, ZOOM_connection *cs)
4981 {
4982     int i;
4983
4984     yaz_log(log_details, "ZOOM_process_event(no=%d,cs=%p)", no, cs);
4985
4986     for (i = 0; i<no; i++)
4987     {
4988         ZOOM_connection c = cs[i];
4989
4990         if (c && ZOOM_connection_process(c))
4991             return i+1;
4992     }
4993     return 0;
4994 }
4995
4996 ZOOM_API(int) ZOOM_connection_fire_event_socket(ZOOM_connection c, int mask)
4997 {
4998     if (c->mask && mask)
4999         ZOOM_connection_do_io(c, mask);
5000     return 0;
5001 }
5002
5003 ZOOM_API(int) ZOOM_connection_get_socket(ZOOM_connection c)
5004 {
5005     if (c->cs)
5006         return cs_fileno(c->cs);
5007     return -1;
5008 }
5009
5010 ZOOM_API(int) ZOOM_connection_set_mask(ZOOM_connection c, int mask)
5011 {
5012     c->mask = mask;
5013     if (!c->cs)
5014         return -1;
5015     return 0;
5016 }
5017
5018 ZOOM_API(int) ZOOM_connection_get_mask(ZOOM_connection c)
5019 {
5020     if (c->cs)
5021         return c->mask;
5022     return 0;
5023 }
5024
5025 ZOOM_API(int) ZOOM_connection_get_timeout(ZOOM_connection c)
5026 {
5027     return ZOOM_options_get_int(c->options, "timeout", 30);
5028 }
5029
5030 ZOOM_API(void) ZOOM_connection_close(ZOOM_connection c)
5031 {
5032     do_close(c);
5033 }
5034
5035 /*
5036  * Local variables:
5037  * c-basic-offset: 4
5038  * c-file-style: "Stroustrup"
5039  * indent-tabs-mode: nil
5040  * End:
5041  * vim: shiftwidth=4 tabstop=8 expandtab
5042  */
5043