src/zoom-c.c

   1 /*
   2  * Copyright (C) 1995-2007, Index Data ApS
   3  * See the file LICENSE for details.
   4  *
   5  * $Id: zoom-c.c,v 1.146 2007-09-08 06:17:45 adam Exp $
   6  */
   7 /**
   8  * \file zoom-c.c
   9  * \brief Implements ZOOM C interface.
  10  */
  11
  12 #include <assert.h>
  13 #include <string.h>
  14 #include <errno.h>
  15 #include "zoom-p.h"
  16
  17 #include <yaz/yaz-util.h>
  18 #include <yaz/xmalloc.h>
  19 #include <yaz/otherinfo.h>
  20 #include <yaz/log.h>
  21 #include <yaz/pquery.h>
  22 #include <yaz/marcdisp.h>
  23 #include <yaz/diagbib1.h>
  24 #include <yaz/charneg.h>
  25 #include <yaz/ill.h>
  26 #include <yaz/srw.h>
  27 #include <yaz/cql.h>
  28 #include <yaz/ccl.h>
  29 #include <yaz/query-charset.h>
  30 #include <yaz/copy_types.h>
  31 #include <yaz/snprintf.h>
  32
  33 static int log_api = 0;
  34 static int log_details = 0;
  35
  36 typedef enum {
  37     zoom_pending,
  38     zoom_complete
  39 } zoom_ret;
  40
  41 static void resultset_destroy(ZOOM_resultset r);
  42 static zoom_ret ZOOM_connection_send_init(ZOOM_connection c);
  43 static zoom_ret do_write_ex(ZOOM_connection c, char *buf_out, int len_out);
  44 static char *cql2pqf(ZOOM_connection c, const char *cql);
  45
  46
  47 /*
  48  * This wrapper is just for logging failed lookups.  It would be nicer
  49  * if it could cause failure when a lookup fails, but that's hard.
  50  */
  51 static Odr_oid *zoom_yaz_str_to_z3950oid(ZOOM_connection c,
  52                                      int oid_class, const char *str) {
  53     Odr_oid *res = yaz_string_to_oid_odr(yaz_oid_std(), oid_class, str,
  54                                      c->odr_out);
  55     if (res == 0)
  56         yaz_log(YLOG_WARN, "%p OID lookup (%d, '%s') failed",
  57                 c, (int) oid_class, str);
  58     return res;
  59 }
  60
  61
  62 static void initlog(void)
  63 {
  64     static int log_level_initialized = 0;
  65     if (!log_level_initialized)
  66     {
  67         log_api = yaz_log_module_level("zoom");
  68         log_details = yaz_log_module_level("zoomdetails");
  69         log_level_initialized = 1;
  70     }
  71 }
  72
  73 static ZOOM_Event ZOOM_Event_create(int kind)
  74 {
  75     ZOOM_Event event = (ZOOM_Event) xmalloc(sizeof(*event));
  76     event->kind = kind;
  77     event->next = 0;
  78     event->prev = 0;
  79     yaz_log(log_details, "ZOOM_Event_create(kind=%d)", kind);
  80     return event;
  81 }
  82
  83 static void ZOOM_Event_destroy(ZOOM_Event event)
  84 {
  85     xfree(event);
  86 }
  87
  88 static void ZOOM_connection_put_event(ZOOM_connection c, ZOOM_Event event)
  89 {
  90     if (c->m_queue_back)
  91     {
  92         c->m_queue_back->prev = event;
  93         assert(c->m_queue_front);
  94     }
  95     else
  96     {
  97         assert(!c->m_queue_front);
  98         c->m_queue_front = event;
  99     }
 100     event->next = c->m_queue_back;
 101     event->prev = 0;
 102     c->m_queue_back = event;
 103 }
 104
 105 static ZOOM_Event ZOOM_connection_get_event(ZOOM_connection c)
 106 {
 107     ZOOM_Event event = c->m_queue_front;
 108     if (!event)
 109     {
 110         c->last_event = ZOOM_EVENT_NONE;
 111         return 0;
 112     }
 113     assert(c->m_queue_back);
 114     c->m_queue_front = event->prev;
 115     if (c->m_queue_front)
 116     {
 117         assert(c->m_queue_back);
 118         c->m_queue_front->next = 0;
 119     }
 120     else
 121         c->m_queue_back = 0;
 122     c->last_event = event->kind;
 123     return event;
 124 }
 125
 126 static void ZOOM_connection_remove_events(ZOOM_connection c)
 127 {
 128     ZOOM_Event event;
 129     while ((event = ZOOM_connection_get_event(c)))
 130         ZOOM_Event_destroy(event);
 131 }
 132
 133 ZOOM_API(int) ZOOM_connection_peek_event(ZOOM_connection c)
 134 {
 135     ZOOM_Event event = c->m_queue_front;
 136
 137     return event ? event->kind : ZOOM_EVENT_NONE;
 138 }
 139
 140 void ZOOM_connection_remove_tasks(ZOOM_connection c);
 141
 142 static void set_dset_error(ZOOM_connection c, int error,
 143                            const char *dset,
 144                            const char *addinfo, const char *addinfo2)
 145 {
 146     char *cp;
 147
 148     xfree(c->addinfo);
 149     c->addinfo = 0;
 150     c->error = error;
 151     if (!c->diagset || strcmp(dset, c->diagset))
 152     {
 153         xfree(c->diagset);
 154         c->diagset = xstrdup(dset);
 155         /* remove integer part from SRW diagset .. */
 156         if ((cp = strrchr(c->diagset, '/')))
 157             *cp = '\0';
 158     }
 159     if (addinfo && addinfo2)
 160     {
 161         c->addinfo = (char*) xmalloc(strlen(addinfo) + strlen(addinfo2) + 2);
 162         strcpy(c->addinfo, addinfo);
 163         strcat(c->addinfo, addinfo2);
 164     }
 165     else if (addinfo)
 166         c->addinfo = xstrdup(addinfo);
 167     if (error != ZOOM_ERROR_NONE)
 168     {
 169         yaz_log(log_api, "%p set_dset_error %s %s:%d %s %s",
 170                 c, c->host_port ? c->host_port : "<>", dset, error,
 171                 addinfo ? addinfo : "",
 172                 addinfo2 ? addinfo2 : "");
 173         ZOOM_connection_remove_tasks(c);
 174     }
 175 }
 176
 177 #if YAZ_HAVE_XML2
 178 static void set_HTTP_error(ZOOM_connection c, int error,
 179                            const char *addinfo, const char *addinfo2)
 180 {
 181     set_dset_error(c, error, "HTTP", addinfo, addinfo2);
 182 }
 183
 184 static void set_SRU_error(ZOOM_connection c, Z_SRW_diagnostic *d)
 185 {
 186     const char *uri = d->uri;
 187     if (uri)
 188     {
 189         int code = 0;
 190         const char *cp;
 191         if ((cp = strrchr(uri, '/')))
 192             code = atoi(cp+1);
 193         set_dset_error(c, code, uri, d->details, 0);
 194     }
 195 }
 196
 197 #endif
 198
 199
 200 static void set_ZOOM_error(ZOOM_connection c, int error,
 201                            const char *addinfo)
 202 {
 203     set_dset_error(c, error, "ZOOM", addinfo, 0);
 204 }
 205
 206 static void clear_error(ZOOM_connection c)
 207 {
 208     /*
 209      * If an error is tied to an operation then it's ok to clear: for
 210      * example, a diagnostic returned from a search is cleared by a
 211      * subsequent search.  However, problems such as Connection Lost
 212      * or Init Refused are not cleared, because they are not
 213      * recoverable: doing another search doesn't help.
 214      */
 215
 216     ZOOM_connection_remove_events(c);
 217     switch (c->error)
 218     {
 219     case ZOOM_ERROR_CONNECT:
 220     case ZOOM_ERROR_MEMORY:
 221     case ZOOM_ERROR_DECODE:
 222     case ZOOM_ERROR_CONNECTION_LOST:
 223     case ZOOM_ERROR_INIT:
 224     case ZOOM_ERROR_INTERNAL:
 225     case ZOOM_ERROR_UNSUPPORTED_PROTOCOL:
 226         break;
 227     default:
 228         set_ZOOM_error(c, ZOOM_ERROR_NONE, 0);
 229     }
 230 }
 231
 232 void ZOOM_connection_show_task(ZOOM_task task)
 233 {
 234     switch(task->which)
 235     {
 236     case ZOOM_TASK_SEARCH:
 237         yaz_log(YLOG_LOG, "search p=%p", task);
 238         break;
 239     case ZOOM_TASK_RETRIEVE:
 240         yaz_log(YLOG_LOG, "retrieve p=%p", task);
 241         break;
 242     case ZOOM_TASK_CONNECT:
 243         yaz_log(YLOG_LOG, "connect p=%p", task);
 244         break;
 245     case ZOOM_TASK_SCAN:
 246         yaz_log(YLOG_LOG, "scant p=%p", task);
 247         break;
 248     }
 249 }
 250
 251 void ZOOM_connection_show_tasks(ZOOM_connection c)
 252 {
 253     ZOOM_task task;
 254     yaz_log(YLOG_LOG, "connection p=%p tasks", c);
 255     for (task = c->tasks; task; task = task->next)
 256         ZOOM_connection_show_task(task);
 257 }
 258
 259 ZOOM_task ZOOM_connection_add_task(ZOOM_connection c, int which)
 260 {
 261     ZOOM_task *taskp = &c->tasks;
 262     while (*taskp)
 263         taskp = &(*taskp)->next;
 264     *taskp = (ZOOM_task) xmalloc(sizeof(**taskp));
 265     (*taskp)->running = 0;
 266     (*taskp)->which = which;
 267     (*taskp)->next = 0;
 268     clear_error(c);
 269     return *taskp;
 270 }
 271
 272 ZOOM_API(int) ZOOM_connection_is_idle(ZOOM_connection c)
 273 {
 274     return c->tasks ? 0 : 1;
 275 }
 276
 277 ZOOM_task ZOOM_connection_insert_task(ZOOM_connection c, int which)
 278 {
 279     ZOOM_task task = (ZOOM_task) xmalloc(sizeof(*task));
 280
 281     task->next = c->tasks;
 282     c->tasks = task;
 283
 284     task->running = 0;
 285     task->which = which;
 286     clear_error(c);
 287     return task;
 288 }
 289
 290 void ZOOM_connection_remove_task(ZOOM_connection c)
 291 {
 292     ZOOM_task task = c->tasks;
 293
 294     if (task)
 295     {
 296         c->tasks = task->next;
 297         switch (task->which)
 298         {
 299         case ZOOM_TASK_SEARCH:
 300             resultset_destroy(task->u.search.resultset);
 301             xfree(task->u.search.syntax);
 302             xfree(task->u.search.elementSetName);
 303             break;
 304         case ZOOM_TASK_RETRIEVE:
 305             resultset_destroy(task->u.retrieve.resultset);
 306             xfree(task->u.retrieve.syntax);
 307             xfree(task->u.retrieve.elementSetName);
 308             break;
 309         case ZOOM_TASK_CONNECT:
 310             break;
 311         case ZOOM_TASK_SCAN:
 312             ZOOM_scanset_destroy(task->u.scan.scan);
 313             break;
 314         case ZOOM_TASK_PACKAGE:
 315             ZOOM_package_destroy(task->u.package);
 316             break;
 317         case ZOOM_TASK_SORT:
 318             resultset_destroy(task->u.sort.resultset);
 319             ZOOM_query_destroy(task->u.sort.q);
 320             break;
 321         default:
 322             assert(0);
 323         }
 324         xfree(task);
 325
 326         if (!c->tasks)
 327         {
 328             ZOOM_Event event = ZOOM_Event_create(ZOOM_EVENT_END);
 329             ZOOM_connection_put_event(c, event);
 330         }
 331     }
 332 }
 333
 334 static int ZOOM_connection_exec_task(ZOOM_connection c);
 335
 336 void ZOOM_connection_remove_tasks(ZOOM_connection c)
 337 {
 338     while (c->tasks)
 339         ZOOM_connection_remove_task(c);
 340 }
 341
 342 static ZOOM_record record_cache_lookup(ZOOM_resultset r, int pos,
 343                                        const char *syntax,
 344                                        const char *elementSetName);
 345
 346 ZOOM_API(ZOOM_connection)
 347     ZOOM_connection_create(ZOOM_options options)
 348 {
 349     ZOOM_connection c = (ZOOM_connection) xmalloc(sizeof(*c));
 350
 351     initlog();
 352
 353     yaz_log(log_api, "%p ZOOM_connection_create", c);
 354
 355     c->proto = PROTO_Z3950;
 356     c->cs = 0;
 357     ZOOM_connection_set_mask(c, 0);
 358     c->reconnect_ok = 0;
 359     c->state = STATE_IDLE;
 360     c->addinfo = 0;
 361     c->diagset = 0;
 362     set_ZOOM_error(c, ZOOM_ERROR_NONE, 0);
 363     c->buf_in = 0;
 364     c->len_in = 0;
 365     c->buf_out = 0;
 366     c->len_out = 0;
 367     c->resultsets = 0;
 368
 369     c->options = ZOOM_options_create_with_parent(options);
 370
 371     c->host_port = 0;
 372     c->path = 0;
 373     c->proxy = 0;
 374
 375     c->charset = c->lang = 0;
 376
 377     c->cookie_out = 0;
 378     c->cookie_in = 0;
 379     c->client_IP = 0;
 380     c->tasks = 0;
 381
 382     c->user = 0;
 383     c->group = 0;
 384     c->password = 0;
 385
 386     c->maximum_record_size = 0;
 387     c->preferred_message_size = 0;
 388
 389     c->odr_in = odr_createmem(ODR_DECODE);
 390     c->odr_out = odr_createmem(ODR_ENCODE);
 391
 392     c->async = 0;
 393     c->support_named_resultsets = 0;
 394     c->last_event = ZOOM_EVENT_NONE;
 395
 396     c->m_queue_front = 0;
 397     c->m_queue_back = 0;
 398
 399     c->sru_version = xstrdup("1.1");
 400     return c;
 401 }
 402
 403
 404 /* set database names. Take local databases (if set); otherwise
 405    take databases given in ZURL (if set); otherwise use Default */
 406 static char **set_DatabaseNames(ZOOM_connection con, ZOOM_options options,
 407                                 int *num, ODR odr)
 408 {
 409     char **databaseNames;
 410     const char *cp = ZOOM_options_get(options, "databaseName");
 411
 412     if ((!cp || !*cp) && con->host_port)
 413     {
 414         if (strncmp(con->host_port, "unix:", 5) == 0)
 415             cp = strchr(con->host_port+5, ':');
 416         else
 417             cp = strchr(con->host_port, '/');
 418         if (cp)
 419             cp++;
 420     }
 421     if (!cp)
 422         cp = "Default";
 423     nmem_strsplit(odr_getmem(odr), "+", cp,  &databaseNames, num);
 424     return databaseNames;
 425 }
 426
 427 ZOOM_API(ZOOM_connection)
 428     ZOOM_connection_new(const char *host, int portnum)
 429 {
 430     ZOOM_connection c = ZOOM_connection_create(0);
 431
 432     ZOOM_connection_connect(c, host, portnum);
 433     return c;
 434 }
 435
 436 static zoom_sru_mode get_sru_mode_from_string(const char *s)
 437 {
 438     if (!s || !*s)
 439         return zoom_sru_soap;
 440     if (!yaz_matchstr(s, "soap"))
 441         return zoom_sru_soap;
 442     else if (!yaz_matchstr(s, "get"))
 443         return zoom_sru_get;
 444     else if (!yaz_matchstr(s, "post"))
 445         return zoom_sru_post;
 446     return zoom_sru_error;
 447 }
 448
 449 ZOOM_API(void)
 450     ZOOM_connection_connect(ZOOM_connection c,
 451                             const char *host, int portnum)
 452 {
 453     const char *val;
 454     ZOOM_task task;
 455
 456     initlog();
 457
 458     yaz_log(log_api, "%p ZOOM_connection_connect host=%s portnum=%d",
 459             c, host ? host : "null", portnum);
 460
 461     set_ZOOM_error(c, ZOOM_ERROR_NONE, 0);
 462     ZOOM_connection_remove_tasks(c);
 463
 464     if (c->cs)
 465     {
 466         yaz_log(log_details, "%p ZOOM_connection_connect reconnect ok", c);
 467         c->reconnect_ok = 1;
 468         return;
 469     }
 470     yaz_log(log_details, "%p ZOOM_connection_connect connect", c);
 471     xfree(c->proxy);
 472     c->proxy = 0;
 473     val = ZOOM_options_get(c->options, "proxy");
 474     if (val && *val)
 475     {
 476         yaz_log(log_details, "%p ZOOM_connection_connect proxy=%s", c, val);
 477         c->proxy = xstrdup(val);
 478     }
 479
 480     xfree(c->charset);
 481     c->charset = 0;
 482     val = ZOOM_options_get(c->options, "charset");
 483     if (val && *val)
 484     {
 485         yaz_log(log_details, "%p ZOOM_connection_connect charset=%s", c, val);
 486         c->charset = xstrdup(val);
 487     }
 488
 489     xfree(c->lang);
 490     val = ZOOM_options_get(c->options, "lang");
 491     if (val && *val)
 492     {
 493         yaz_log(log_details, "%p ZOOM_connection_connect lang=%s", c, val);
 494         c->lang = xstrdup(val);
 495     }
 496     else
 497         c->lang = 0;
 498
 499     if (host)
 500     {
 501         xfree(c->host_port);
 502         if (portnum)
 503         {
 504             char hostn[128];
 505             sprintf(hostn, "%.80s:%d", host, portnum);
 506             c->host_port = xstrdup(hostn);
 507         }
 508         else
 509             c->host_port = xstrdup(host);
 510     }
 511
 512     {
 513         /*
 514          * If the "<scheme>:" part of the host string is preceded by one
 515          * or more comma-separated <name>=<value> pairs, these are taken
 516          * to be options to be set on the connection object.  Among other
 517          * applications, this facility can be used to embed authentication
 518          * in a host string:
 519          *          user=admin,password=secret,tcp:localhost:9999
 520          */
 521         char *remainder = c->host_port;
 522         char *pcolon = strchr(remainder, ':');
 523         char *pcomma;
 524         char *pequals;
 525         while ((pcomma = strchr(remainder, ',')) != 0 &&
 526                (pcolon == 0 || pcomma < pcolon)) {
 527             *pcomma = '\0';
 528             if ((pequals = strchr(remainder, '=')) != 0) {
 529                 *pequals = '\0';
 530                 /*printf("# setting '%s'='%s'\n", remainder, pequals+1);*/
 531                 ZOOM_connection_option_set(c, remainder, pequals+1);
 532             }
 533             remainder = pcomma+1;
 534         }
 535
 536         if (remainder != c->host_port) {
 537             xfree(c->host_port);
 538             c->host_port = xstrdup(remainder);
 539             /*printf("# reset hp='%s'\n", remainder);*/
 540         }
 541     }
 542
 543     val = ZOOM_options_get(c->options, "sru");
 544     c->sru_mode = get_sru_mode_from_string(val);
 545
 546     xfree(c->sru_version);
 547     val = ZOOM_options_get(c->options, "sru_version");
 548     c->sru_version = xstrdup(val ? val : "1.1");
 549
 550     ZOOM_options_set(c->options, "host", c->host_port);
 551
 552     xfree(c->cookie_out);
 553     c->cookie_out = 0;
 554     val = ZOOM_options_get(c->options, "cookie");
 555     if (val && *val)
 556     {
 557         yaz_log(log_details, "%p ZOOM_connection_connect cookie=%s", c, val);
 558         c->cookie_out = xstrdup(val);
 559     }
 560
 561     xfree(c->client_IP);
 562     c->client_IP = 0;
 563     val = ZOOM_options_get(c->options, "clientIP");
 564     if (val && *val)
 565     {
 566         yaz_log(log_details, "%p ZOOM_connection_connect clientIP=%s",
 567                 c, val);
 568         c->client_IP = xstrdup(val);
 569     }
 570
 571     xfree(c->group);
 572     c->group = 0;
 573     val = ZOOM_options_get(c->options, "group");
 574     if (val && *val)
 575         c->group = xstrdup(val);
 576
 577     xfree(c->user);
 578     c->user = 0;
 579     val = ZOOM_options_get(c->options, "user");
 580     if (val && *val)
 581         c->user = xstrdup(val);
 582
 583     xfree(c->password);
 584     c->password = 0;
 585     val = ZOOM_options_get(c->options, "password");
 586     if (!val)
 587         val = ZOOM_options_get(c->options, "pass");
 588
 589     if (val && *val)
 590         c->password = xstrdup(val);
 591
 592     c->maximum_record_size =
 593         ZOOM_options_get_int(c->options, "maximumRecordSize", 1024*1024);
 594     c->preferred_message_size =
 595         ZOOM_options_get_int(c->options, "preferredMessageSize", 1024*1024);
 596
 597     c->async = ZOOM_options_get_bool(c->options, "async", 0);
 598     yaz_log(log_details, "%p ZOOM_connection_connect async=%d", c, c->async);
 599
 600     task = ZOOM_connection_add_task(c, ZOOM_TASK_CONNECT);
 601
 602     if (!c->async)
 603     {
 604         while (ZOOM_event(1, &c))
 605             ;
 606     }
 607 }
 608
 609 ZOOM_API(ZOOM_query)
 610     ZOOM_query_create(void)
 611 {
 612     ZOOM_query s = (ZOOM_query) xmalloc(sizeof(*s));
 613
 614     yaz_log(log_details, "%p ZOOM_query_create", s);
 615     s->refcount = 1;
 616     s->z_query = 0;
 617     s->sort_spec = 0;
 618     s->odr = odr_createmem(ODR_ENCODE);
 619     s->query_string = 0;
 620
 621     return s;
 622 }
 623
 624 ZOOM_API(void)
 625     ZOOM_query_destroy(ZOOM_query s)
 626 {
 627     if (!s)
 628         return;
 629
 630     (s->refcount)--;
 631     yaz_log(log_details, "%p ZOOM_query_destroy count=%d", s, s->refcount);
 632     if (s->refcount == 0)
 633     {
 634         odr_destroy(s->odr);
 635         xfree(s);
 636     }
 637 }
 638
 639 ZOOM_API(int)
 640     ZOOM_query_prefix(ZOOM_query s, const char *str)
 641 {
 642     s->query_string = odr_strdup(s->odr, str);
 643     s->z_query = (Z_Query *) odr_malloc(s->odr, sizeof(*s->z_query));
 644     s->z_query->which = Z_Query_type_1;
 645     s->z_query->u.type_1 =  p_query_rpn(s->odr, str);
 646     if (!s->z_query->u.type_1)
 647     {
 648         yaz_log(log_details, "%p ZOOM_query_prefix str=%s failed", s, str);
 649         s->z_query = 0;
 650         return -1;
 651     }
 652     yaz_log(log_details, "%p ZOOM_query_prefix str=%s", s, str);
 653     return 0;
 654 }
 655
 656 ZOOM_API(int)
 657     ZOOM_query_cql(ZOOM_query s, const char *str)
 658 {
 659     Z_External *ext;
 660
 661     s->query_string = odr_strdup(s->odr, str);
 662
 663     ext = (Z_External *) odr_malloc(s->odr, sizeof(*ext));
 664     ext->direct_reference = odr_oiddup(s->odr, yaz_oid_userinfo_cql);
 665     ext->indirect_reference = 0;
 666     ext->descriptor = 0;
 667     ext->which = Z_External_CQL;
 668     ext->u.cql = s->query_string;
 669
 670     s->z_query = (Z_Query *) odr_malloc(s->odr, sizeof(*s->z_query));
 671     s->z_query->which = Z_Query_type_104;
 672     s->z_query->u.type_104 =  ext;
 673
 674     yaz_log(log_details, "%p ZOOM_query_cql str=%s", s, str);
 675
 676     return 0;
 677 }
 678
 679 /*
 680  * Translate the CQL string client-side into RPN which is passed to
 681  * the server.  This is useful for server's that don't themselves
 682  * support CQL, for which ZOOM_query_cql() is useless.  `conn' is used
 683  * only as a place to stash diagnostics if compilation fails; if this
 684  * information is not needed, a null pointer may be used.
 685  */
 686 ZOOM_API(int)
 687     ZOOM_query_cql2rpn(ZOOM_query s, const char *str, ZOOM_connection conn)
 688 {
 689     char *rpn;
 690     int ret;
 691     ZOOM_connection freeme = 0;
 692
 693     yaz_log(log_details, "%p ZOOM_query_cql2rpn str=%s conn=%p", s, str, conn);
 694     if (conn == 0)
 695         conn = freeme = ZOOM_connection_create(0);
 696
 697     rpn = cql2pqf(conn, str);
 698     if (freeme != 0)
 699         ZOOM_connection_destroy(freeme);
 700     if (rpn == 0)
 701         return -1;
 702
 703     ret = ZOOM_query_prefix(s, rpn);
 704     xfree(rpn);
 705     return ret;
 706 }
 707
 708 /*
 709  * Analogous in every way to ZOOM_query_cql2rpn(), except that there
 710  * is no analogous ZOOM_query_ccl() that just sends uninterpreted CCL
 711  * to the server, as the YAZ GFS doesn't know how to handle this.
 712  */
 713 ZOOM_API(int)
 714     ZOOM_query_ccl2rpn(ZOOM_query s, const char *str, const char *config,
 715                        int *ccl_error, const char **error_string,
 716                        int *error_pos)
 717 {
 718     int ret;
 719     struct ccl_rpn_node *rpn;
 720     CCL_bibset bibset = ccl_qual_mk();
 721
 722     if (config)
 723         ccl_qual_buf(bibset, config);
 724
 725     rpn = ccl_find_str(bibset, str, ccl_error, error_pos);
 726     if (!rpn)
 727     {
 728         *error_string = ccl_err_msg(*ccl_error);
 729         ret = -1;
 730     }
 731     else
 732     {
 733         WRBUF wr = wrbuf_alloc();
 734         ccl_pquery(wr, rpn);
 735         ccl_rpn_delete(rpn);
 736         ret = ZOOM_query_prefix(s, wrbuf_cstr(wr));
 737         wrbuf_destroy(wr);
 738     }
 739     ccl_qual_rm(&bibset);
 740     return ret;
 741 }
 742
 743 ZOOM_API(int)
 744     ZOOM_query_sortby(ZOOM_query s, const char *criteria)
 745 {
 746     s->sort_spec = yaz_sort_spec(s->odr, criteria);
 747     if (!s->sort_spec)
 748     {
 749         yaz_log(log_details, "%p ZOOM_query_sortby criteria=%s failed",
 750                 s, criteria);
 751         return -1;
 752     }
 753     yaz_log(log_details, "%p ZOOM_query_sortby criteria=%s", s, criteria);
 754     return 0;
 755 }
 756
 757 static zoom_ret do_write(ZOOM_connection c);
 758
 759 ZOOM_API(void)
 760     ZOOM_connection_destroy(ZOOM_connection c)
 761 {
 762     ZOOM_resultset r;
 763     if (!c)
 764         return;
 765     yaz_log(log_api, "%p ZOOM_connection_destroy", c);
 766     if (c->cs)
 767         cs_close(c->cs);
 768     for (r = c->resultsets; r; r = r->next)
 769         r->connection = 0;
 770
 771     xfree(c->buf_in);
 772     xfree(c->addinfo);
 773     xfree(c->diagset);
 774     odr_destroy(c->odr_in);
 775     odr_destroy(c->odr_out);
 776     ZOOM_options_destroy(c->options);
 777     ZOOM_connection_remove_tasks(c);
 778     ZOOM_connection_remove_events(c);
 779     xfree(c->host_port);
 780     xfree(c->path);
 781     xfree(c->proxy);
 782     xfree(c->charset);
 783     xfree(c->lang);
 784     xfree(c->cookie_out);
 785     xfree(c->cookie_in);
 786     xfree(c->client_IP);
 787     xfree(c->user);
 788     xfree(c->group);
 789     xfree(c->password);
 790     xfree(c->sru_version);
 791     xfree(c);
 792 }
 793
 794 void ZOOM_resultset_addref(ZOOM_resultset r)
 795 {
 796     if (r)
 797     {
 798         (r->refcount)++;
 799         yaz_log(log_details, "%p ZOOM_resultset_addref count=%d",
 800                 r, r->refcount);
 801     }
 802 }
 803
 804 ZOOM_resultset ZOOM_resultset_create(void)
 805 {
 806     int i;
 807     ZOOM_resultset r = (ZOOM_resultset) xmalloc(sizeof(*r));
 808
 809     initlog();
 810
 811     yaz_log(log_details, "%p ZOOM_resultset_create", r);
 812     r->refcount = 1;
 813     r->size = 0;
 814     r->odr = odr_createmem(ODR_ENCODE);
 815     r->piggyback = 1;
 816     r->setname = 0;
 817     r->schema = 0;
 818     r->step = 0;
 819     for (i = 0; i<RECORD_HASH_SIZE; i++)
 820         r->record_hash[i] = 0;
 821     r->r_sort_spec = 0;
 822     r->query = 0;
 823     r->connection = 0;
 824     r->next = 0;
 825     r->databaseNames = 0;
 826     r->num_databaseNames = 0;
 827     return r;
 828 }
 829
 830 ZOOM_API(ZOOM_resultset)
 831     ZOOM_connection_search_pqf(ZOOM_connection c, const char *q)
 832 {
 833     ZOOM_resultset r;
 834     ZOOM_query s = ZOOM_query_create();
 835
 836     ZOOM_query_prefix(s, q);
 837
 838     r = ZOOM_connection_search(c, s);
 839     ZOOM_query_destroy(s);
 840     return r;
 841 }
 842
 843 ZOOM_API(ZOOM_resultset)
 844     ZOOM_connection_search(ZOOM_connection c, ZOOM_query q)
 845 {
 846     ZOOM_resultset r = ZOOM_resultset_create();
 847     ZOOM_task task;
 848     const char *cp;
 849     int start, count;
 850     const char *syntax, *elementSetName;
 851
 852     yaz_log(log_api, "%p ZOOM_connection_search set %p query %p", c, r, q);
 853     r->r_sort_spec = q->sort_spec;
 854     r->query = q;
 855
 856     r->options = ZOOM_options_create_with_parent(c->options);
 857
 858     start = ZOOM_options_get_int(r->options, "start", 0);
 859     count = ZOOM_options_get_int(r->options, "count", 0);
 860     {
 861         /* If "presentChunk" is defined use that; otherwise "step" */
 862         const char *cp = ZOOM_options_get(r->options, "presentChunk");
 863         r->step = ZOOM_options_get_int(r->options,
 864                                        (cp != 0 ? "presentChunk": "step"), 0);
 865     }
 866     r->piggyback = ZOOM_options_get_bool(r->options, "piggyback", 1);
 867     cp = ZOOM_options_get(r->options, "setname");
 868     if (cp)
 869         r->setname = xstrdup(cp);
 870     cp = ZOOM_options_get(r->options, "schema");
 871     if (cp)
 872         r->schema = xstrdup(cp);
 873
 874     r->databaseNames = set_DatabaseNames(c, c->options, &r->num_databaseNames,
 875                                          r->odr);
 876
 877     r->connection = c;
 878
 879     r->next = c->resultsets;
 880     c->resultsets = r;
 881
 882
 883
 884     if (c->host_port && c->proto == PROTO_HTTP)
 885     {
 886         if (!c->cs)
 887         {
 888             yaz_log(log_details, "ZOOM_connection_search: no comstack");
 889             ZOOM_connection_add_task(c, ZOOM_TASK_CONNECT);
 890         }
 891         else
 892         {
 893             yaz_log(log_details, "ZOOM_connection_search: reconnect");
 894             c->reconnect_ok = 1;
 895         }
 896     }
 897
 898     task = ZOOM_connection_add_task(c, ZOOM_TASK_SEARCH);
 899     task->u.search.resultset = r;
 900     task->u.search.start = start;
 901     task->u.search.count = count;
 902
 903     syntax = ZOOM_options_get(r->options, "preferredRecordSyntax");
 904     task->u.search.syntax = syntax ? xstrdup(syntax) : 0;
 905     elementSetName = ZOOM_options_get(r->options, "elementSetName");
 906     task->u.search.elementSetName = elementSetName
 907         ? xstrdup(elementSetName) : 0;
 908
 909     ZOOM_resultset_addref(r);
 910
 911     (q->refcount)++;
 912
 913     if (!c->async)
 914     {
 915         while (ZOOM_event(1, &c))
 916             ;
 917     }
 918     return r;
 919 }
 920
 921 ZOOM_API(void)
 922     ZOOM_resultset_sort(ZOOM_resultset r,
 923                          const char *sort_type, const char *sort_spec)
 924 {
 925     (void) ZOOM_resultset_sort1(r, sort_type, sort_spec);
 926 }
 927
 928 ZOOM_API(int)
 929     ZOOM_resultset_sort1(ZOOM_resultset r,
 930                          const char *sort_type, const char *sort_spec)
 931 {
 932     ZOOM_connection c = r->connection;
 933     ZOOM_task task;
 934     ZOOM_query newq;
 935
 936     newq = ZOOM_query_create();
 937     if (ZOOM_query_sortby(newq, sort_spec) < 0)
 938         return -1;
 939
 940     yaz_log(log_api, "%p ZOOM_resultset_sort r=%p sort_type=%s sort_spec=%s",
 941             r, r, sort_type, sort_spec);
 942     if (!c)
 943         return 0;
 944
 945     if (c->host_port && c->proto == PROTO_HTTP)
 946     {
 947         if (!c->cs)
 948         {
 949             yaz_log(log_details, "%p ZOOM_resultset_sort: no comstack", r);
 950             ZOOM_connection_add_task(c, ZOOM_TASK_CONNECT);
 951         }
 952         else
 953         {
 954             yaz_log(log_details, "%p ZOOM_resultset_sort: prepare reconnect",
 955                     r);
 956             c->reconnect_ok = 1;
 957         }
 958     }
 959
 960     ZOOM_resultset_cache_reset(r);
 961     task = ZOOM_connection_add_task(c, ZOOM_TASK_SORT);
 962     task->u.sort.resultset = r;
 963     task->u.sort.q = newq;
 964
 965     ZOOM_resultset_addref(r);
 966
 967     if (!c->async)
 968     {
 969         while (ZOOM_event(1, &c))
 970             ;
 971     }
 972
 973     return 0;
 974 }
 975
 976 ZOOM_API(void)
 977     ZOOM_resultset_cache_reset(ZOOM_resultset r)
 978 {
 979     int i;
 980     for (i = 0; i<RECORD_HASH_SIZE; i++)
 981     {
 982         ZOOM_record_cache rc;
 983         for (rc = r->record_hash[i]; rc; rc = rc->next)
 984         {
 985             if (rc->rec.wrbuf_marc)
 986                 wrbuf_destroy(rc->rec.wrbuf_marc);
 987             if (rc->rec.wrbuf_iconv)
 988                 wrbuf_destroy(rc->rec.wrbuf_iconv);
 989             if (rc->rec.wrbuf_opac)
 990                 wrbuf_destroy(rc->rec.wrbuf_opac);
 991         }
 992         r->record_hash[i] = 0;
 993     }
 994 }
 995
 996 ZOOM_API(void)
 997     ZOOM_resultset_destroy(ZOOM_resultset r)
 998 {
 999     resultset_destroy(r);
1000 }
1001
1002 static void resultset_destroy(ZOOM_resultset r)
1003 {
1004     if (!r)
1005         return;
1006     (r->refcount)--;
1007     yaz_log(log_details, "%p ZOOM_resultset_destroy r=%p count=%d",
1008             r, r, r->refcount);
1009     if (r->refcount == 0)
1010     {
1011         ZOOM_resultset_cache_reset(r);
1012
1013         if (r->connection)
1014         {
1015             /* remove ourselves from the resultsets in connection */
1016             ZOOM_resultset *rp = &r->connection->resultsets;
1017             while (1)
1018             {
1019                 assert(*rp);   /* we must be in this list!! */
1020                 if (*rp == r)
1021                 {   /* OK, we're here - take us out of it */
1022                     *rp = (*rp)->next;
1023                     break;
1024                 }
1025                 rp = &(*rp)->next;
1026             }
1027         }
1028         ZOOM_query_destroy(r->query);
1029         ZOOM_options_destroy(r->options);
1030         odr_destroy(r->odr);
1031         xfree(r->setname);
1032         xfree(r->schema);
1033         xfree(r);
1034     }
1035 }
1036
1037 ZOOM_API(size_t)
1038     ZOOM_resultset_size(ZOOM_resultset r)
1039 {
1040     yaz_log(log_details, "ZOOM_resultset_size r=%p count=%d",
1041             r, r->size);
1042     return r->size;
1043 }
1044
1045 static void do_close(ZOOM_connection c)
1046 {
1047     if (c->cs)
1048         cs_close(c->cs);
1049     c->cs = 0;
1050     ZOOM_connection_set_mask(c, 0);
1051     c->state = STATE_IDLE;
1052 }
1053
1054 static int ZOOM_test_reconnect(ZOOM_connection c)
1055 {
1056     ZOOM_Event event;
1057
1058     if (!c->reconnect_ok)
1059         return 0;
1060     do_close(c);
1061     c->reconnect_ok = 0;
1062     c->tasks->running = 0;
1063     ZOOM_connection_insert_task(c, ZOOM_TASK_CONNECT);
1064
1065     event = ZOOM_Event_create(ZOOM_EVENT_CONNECT);
1066     ZOOM_connection_put_event(c, event);
1067
1068     return 1;
1069 }
1070
1071 static void ZOOM_resultset_retrieve(ZOOM_resultset r,
1072                                     int force_sync, int start, int count)
1073 {
1074     ZOOM_task task;
1075     ZOOM_connection c;
1076     const char *cp;
1077     const char *syntax, *elementSetName;
1078
1079     if (!r)
1080         return;
1081     yaz_log(log_details, "%p ZOOM_resultset_retrieve force_sync=%d start=%d"
1082             " count=%d", r, force_sync, start, count);
1083     c = r->connection;
1084     if (!c)
1085         return;
1086
1087     if (c->host_port && c->proto == PROTO_HTTP)
1088     {
1089         if (!c->cs)
1090         {
1091             yaz_log(log_details, "%p ZOOM_resultset_retrieve: no comstack", r);
1092             ZOOM_connection_add_task(c, ZOOM_TASK_CONNECT);
1093         }
1094         else
1095         {
1096             yaz_log(log_details, "%p ZOOM_resultset_retrieve: prepare "
1097                     "reconnect", r);
1098             c->reconnect_ok = 1;
1099         }
1100     }
1101     task = ZOOM_connection_add_task(c, ZOOM_TASK_RETRIEVE);
1102     task->u.retrieve.resultset = r;
1103     task->u.retrieve.start = start;
1104     task->u.retrieve.count = count;
1105
1106     syntax = ZOOM_options_get(r->options, "preferredRecordSyntax");
1107     task->u.retrieve.syntax = syntax ? xstrdup(syntax) : 0;
1108     elementSetName = ZOOM_options_get(r->options, "elementSetName");
1109     task->u.retrieve.elementSetName = elementSetName
1110         ? xstrdup(elementSetName) : 0;
1111
1112     cp = ZOOM_options_get(r->options, "schema");
1113     if (cp)
1114     {
1115         if (!r->schema || strcmp(r->schema, cp))
1116         {
1117             xfree(r->schema);
1118             r->schema = xstrdup(cp);
1119         }
1120     }
1121
1122     ZOOM_resultset_addref(r);
1123
1124     if (!r->connection->async || force_sync)
1125         while (r->connection && ZOOM_event(1, &r->connection))
1126             ;
1127 }
1128
1129 ZOOM_API(void)
1130     ZOOM_resultset_records(ZOOM_resultset r, ZOOM_record *recs,
1131                            size_t start, size_t count)
1132 {
1133     int force_present = 0;
1134
1135     if (!r)
1136         return ;
1137     yaz_log(log_api, "%p ZOOM_resultset_records r=%p start=%ld count=%ld",
1138             r, r, (long) start, (long) count);
1139     if (count && recs)
1140         force_present = 1;
1141     ZOOM_resultset_retrieve(r, force_present, start, count);
1142     if (force_present)
1143     {
1144         size_t i;
1145         for (i = 0; i< count; i++)
1146             recs[i] = ZOOM_resultset_record_immediate(r, i+start);
1147     }
1148 }
1149
1150 static void get_cert(ZOOM_connection c)
1151 {
1152     char *cert_buf;
1153     int cert_len;
1154
1155     if (cs_get_peer_certificate_x509(c->cs, &cert_buf, &cert_len))
1156     {
1157         ZOOM_connection_option_setl(c, "sslPeerCert",
1158                                     cert_buf, cert_len);
1159         xfree(cert_buf);
1160     }
1161 }
1162
1163 static zoom_ret do_connect(ZOOM_connection c)
1164 {
1165     void *add;
1166     const char *effective_host;
1167
1168     if (c->proxy)
1169         effective_host = c->proxy;
1170     else
1171         effective_host = c->host_port;
1172
1173     yaz_log(log_details, "%p do_connect effective_host=%s", c, effective_host);
1174
1175     if (c->cs)
1176         cs_close(c->cs);
1177     c->cs = cs_create_host(effective_host, 0, &add);
1178
1179     if (c->cs && c->cs->protocol == PROTO_HTTP)
1180     {
1181 #if YAZ_HAVE_XML2
1182         const char *path = 0;
1183
1184         c->proto = PROTO_HTTP;
1185         cs_get_host_args(c->host_port, &path);
1186         xfree(c->path);
1187         c->path = (char*) xmalloc(strlen(path)+2);
1188         c->path[0] = '/';
1189         strcpy(c->path+1, path);
1190 #else
1191         set_ZOOM_error(c, ZOOM_ERROR_UNSUPPORTED_PROTOCOL, "SRW");
1192         do_close(c);
1193         return zoom_complete;
1194 #endif
1195     }
1196     if (c->cs)
1197     {
1198         int ret = cs_connect(c->cs, add);
1199         if (ret == 0)
1200         {
1201             ZOOM_Event event = ZOOM_Event_create(ZOOM_EVENT_CONNECT);
1202             ZOOM_connection_put_event(c, event);
1203             get_cert(c);
1204             if (c->proto == PROTO_Z3950)
1205                 ZOOM_connection_send_init(c);
1206             else
1207             {
1208                 /* no init request for SRW .. */
1209                 assert(c->tasks->which == ZOOM_TASK_CONNECT);
1210                 ZOOM_connection_remove_task(c);
1211                 ZOOM_connection_set_mask(c, 0);
1212                 ZOOM_connection_exec_task(c);
1213             }
1214             c->state = STATE_ESTABLISHED;
1215             return zoom_pending;
1216         }
1217         else if (ret > 0)
1218         {
1219             int mask = ZOOM_SELECT_EXCEPT;
1220             if (c->cs->io_pending & CS_WANT_WRITE)
1221                 mask += ZOOM_SELECT_WRITE;
1222             if (c->cs->io_pending & CS_WANT_READ)
1223                 mask += ZOOM_SELECT_READ;
1224             ZOOM_connection_set_mask(c, mask);
1225             c->state = STATE_CONNECTING;
1226             return zoom_pending;
1227         }
1228     }
1229     c->state = STATE_IDLE;
1230     set_ZOOM_error(c, ZOOM_ERROR_CONNECT, c->host_port);
1231     return zoom_complete;
1232 }
1233
1234 static void otherInfo_attach(ZOOM_connection c, Z_APDU *a, ODR out)
1235 {
1236     int i;
1237     for (i = 0; i<200; i++)
1238     {
1239         size_t len;
1240         Odr_oid *oid;
1241         Z_OtherInformation **oi;
1242         char buf[80];
1243         const char *val;
1244         const char *cp;
1245
1246         sprintf(buf, "otherInfo%d", i);
1247         val = ZOOM_options_get(c->options, buf);
1248         if (!val)
1249             break;
1250         cp = strchr(val, ':');
1251         if (!cp)
1252             continue;
1253         len = cp - val;
1254         if (len >= sizeof(buf))
1255             len = sizeof(buf)-1;
1256         memcpy(buf, val, len);
1257         buf[len] = '\0';
1258
1259         oid = yaz_string_to_oid_odr(yaz_oid_std(), CLASS_USERINFO,
1260                                     buf, out);
1261         if (!oid)
1262             continue;
1263
1264         yaz_oi_APDU(a, &oi);
1265         yaz_oi_set_string_oid(oi, out, oid, 1, cp+1);
1266     }
1267 }
1268
1269 static int encode_APDU(ZOOM_connection c, Z_APDU *a, ODR out)
1270 {
1271     assert(a);
1272     if (c->cookie_out)
1273     {
1274         Z_OtherInformation **oi;
1275         yaz_oi_APDU(a, &oi);
1276         yaz_oi_set_string_oid(oi, out, yaz_oid_userinfo_cookie,
1277                               1, c->cookie_out);
1278     }
1279     if (c->client_IP)
1280     {
1281         Z_OtherInformation **oi;
1282         yaz_oi_APDU(a, &oi);
1283         yaz_oi_set_string_oid(oi, out, yaz_oid_userinfo_client_ip,
1284                               1, c->client_IP);
1285     }
1286     otherInfo_attach(c, a, out);
1287     if (!z_APDU(out, &a, 0, 0))
1288     {
1289         FILE *outf = fopen("/tmp/apdu.txt", "a");
1290         if (a && outf)
1291         {
1292             ODR odr_pr = odr_createmem(ODR_PRINT);
1293             fprintf(outf, "a=%p\n", a);
1294             odr_setprint(odr_pr, outf);
1295             z_APDU(odr_pr, &a, 0, 0);
1296             odr_destroy(odr_pr);
1297         }
1298         yaz_log(log_api, "%p encoding_APDU: encoding failed", c);
1299         set_ZOOM_error(c, ZOOM_ERROR_ENCODE, 0);
1300         odr_reset(out);
1301         return -1;
1302     }
1303     yaz_log(log_details, "%p encoding_APDU encoding OK", c);
1304     return 0;
1305 }
1306
1307 static zoom_ret send_APDU(ZOOM_connection c, Z_APDU *a)
1308 {
1309     ZOOM_Event event;
1310     assert(a);
1311     if (encode_APDU(c, a, c->odr_out))
1312         return zoom_complete;
1313     yaz_log(log_details, "%p send APDU type=%d", c, a->which);
1314     c->buf_out = odr_getbuf(c->odr_out, &c->len_out, 0);
1315     event = ZOOM_Event_create(ZOOM_EVENT_SEND_APDU);
1316     ZOOM_connection_put_event(c, event);
1317     odr_reset(c->odr_out);
1318     return do_write(c);
1319 }
1320
1321 /* returns 1 if PDU was sent OK (still pending )
1322    0 if PDU was not sent OK (nothing to wait for)
1323 */
1324
1325 static zoom_ret ZOOM_connection_send_init(ZOOM_connection c)
1326 {
1327     Z_APDU *apdu = zget_APDU(c->odr_out, Z_APDU_initRequest);
1328     Z_InitRequest *ireq = apdu->u.initRequest;
1329     Z_IdAuthentication *auth = (Z_IdAuthentication *)
1330         odr_malloc(c->odr_out, sizeof(*auth));
1331     char *version;
1332
1333     ODR_MASK_SET(ireq->options, Z_Options_search);
1334     ODR_MASK_SET(ireq->options, Z_Options_present);
1335     ODR_MASK_SET(ireq->options, Z_Options_scan);
1336     ODR_MASK_SET(ireq->options, Z_Options_sort);
1337     ODR_MASK_SET(ireq->options, Z_Options_extendedServices);
1338     ODR_MASK_SET(ireq->options, Z_Options_namedResultSets);
1339
1340     ODR_MASK_SET(ireq->protocolVersion, Z_ProtocolVersion_1);
1341     ODR_MASK_SET(ireq->protocolVersion, Z_ProtocolVersion_2);
1342     ODR_MASK_SET(ireq->protocolVersion, Z_ProtocolVersion_3);
1343
1344     /* Index Data's Z39.50 Implementor Id is 81 */
1345     ireq->implementationId =
1346         odr_prepend(c->odr_out,
1347                     ZOOM_options_get(c->options, "implementationId"),
1348                     odr_prepend(c->odr_out, "81", ireq->implementationId));
1349
1350     ireq->implementationName =
1351         odr_prepend(c->odr_out,
1352                     ZOOM_options_get(c->options, "implementationName"),
1353                     odr_prepend(c->odr_out, "ZOOM-C",
1354                                 ireq->implementationName));
1355
1356     version = odr_strdup(c->odr_out, "$Revision: 1.146 $");
1357     if (strlen(version) > 10)   /* check for unexpanded CVS strings */
1358         version[strlen(version)-2] = '\0';
1359     ireq->implementationVersion =
1360         odr_prepend(c->odr_out,
1361                     ZOOM_options_get(c->options, "implementationVersion"),
1362                     odr_prepend(c->odr_out, &version[11],
1363                                 ireq->implementationVersion));
1364
1365     *ireq->maximumRecordSize = c->maximum_record_size;
1366     *ireq->preferredMessageSize = c->preferred_message_size;
1367
1368     if (c->group || c->password)
1369     {
1370         Z_IdPass *pass = (Z_IdPass *) odr_malloc(c->odr_out, sizeof(*pass));
1371         pass->groupId = 0;
1372         if (c->group)
1373             pass->groupId = odr_strdup(c->odr_out, c->group);
1374         pass->userId = 0;
1375         if (c->user)
1376             pass->userId = odr_strdup(c->odr_out, c->user);
1377         pass->password = 0;
1378         if (c->password)
1379             pass->password = odr_strdup(c->odr_out, c->password);
1380         auth->which = Z_IdAuthentication_idPass;
1381         auth->u.idPass = pass;
1382         ireq->idAuthentication = auth;
1383     }
1384     else if (c->user)
1385     {
1386         auth->which = Z_IdAuthentication_open;
1387         auth->u.open = odr_strdup(c->odr_out, c->user);
1388         ireq->idAuthentication = auth;
1389     }
1390     if (c->proxy)
1391     {
1392         yaz_oi_set_string_oid(&ireq->otherInfo, c->odr_out,
1393                               yaz_oid_userinfo_proxy, 1, c->host_port);
1394     }
1395     if (c->charset || c->lang)
1396     {
1397         Z_OtherInformation **oi;
1398         Z_OtherInformationUnit *oi_unit;
1399
1400         yaz_oi_APDU(apdu, &oi);
1401
1402         if ((oi_unit = yaz_oi_update(oi, c->odr_out, NULL, 0, 0)))
1403         {
1404             ODR_MASK_SET(ireq->options, Z_Options_negotiationModel);
1405             oi_unit->which = Z_OtherInfo_externallyDefinedInfo;
1406             oi_unit->information.externallyDefinedInfo =
1407                 yaz_set_proposal_charneg_list(c->odr_out, " ",
1408                                               c->charset, c->lang, 1);
1409         }
1410     }
1411     assert(apdu);
1412     return send_APDU(c, apdu);
1413 }
1414
1415 #if YAZ_HAVE_XML2
1416 static zoom_ret send_srw(ZOOM_connection c, Z_SRW_PDU *sr)
1417 {
1418     Z_GDU *gdu;
1419     ZOOM_Event event;
1420
1421     gdu = z_get_HTTP_Request_host_path(c->odr_out, c->host_port, c->path);
1422
1423     if (c->sru_mode == zoom_sru_get)
1424     {
1425         yaz_sru_get_encode(gdu->u.HTTP_Request, sr, c->odr_out, c->charset);
1426     }
1427     else if (c->sru_mode == zoom_sru_post)
1428     {
1429         yaz_sru_post_encode(gdu->u.HTTP_Request, sr, c->odr_out, c->charset);
1430     }
1431     else if (c->sru_mode == zoom_sru_soap)
1432     {
1433         yaz_sru_soap_encode(gdu->u.HTTP_Request, sr, c->odr_out, c->charset);
1434     }
1435     if (!z_GDU(c->odr_out, &gdu, 0, 0))
1436         return zoom_complete;
1437     c->buf_out = odr_getbuf(c->odr_out, &c->len_out, 0);
1438
1439     event = ZOOM_Event_create(ZOOM_EVENT_SEND_APDU);
1440     ZOOM_connection_put_event(c, event);
1441     odr_reset(c->odr_out);
1442     return do_write(c);
1443 }
1444 #endif
1445
1446
1447 static Z_SRW_PDU *ZOOM_srw_get_pdu(ZOOM_connection c, int type) {
1448     Z_SRW_PDU *sr = yaz_srw_get_pdu(c->odr_out, type, c->sru_version);
1449     sr->username = c->user;
1450     sr->password = c->password;
1451     return sr;
1452 }
1453
1454
1455 #if YAZ_HAVE_XML2
1456 static zoom_ret ZOOM_connection_srw_send_search(ZOOM_connection c)
1457 {
1458     int i;
1459     int *start, *count;
1460     ZOOM_resultset resultset = 0;
1461     Z_SRW_PDU *sr = 0;
1462     const char *option_val = 0;
1463
1464     if (c->error)                  /* don't continue on error */
1465         return zoom_complete;
1466     assert(c->tasks);
1467     switch(c->tasks->which)
1468     {
1469     case ZOOM_TASK_SEARCH:
1470         resultset = c->tasks->u.search.resultset;
1471         resultset->setname = xstrdup("default");
1472         ZOOM_options_set(resultset->options, "setname", resultset->setname);
1473         start = &c->tasks->u.search.start;
1474         count = &c->tasks->u.search.count;
1475         break;
1476     case ZOOM_TASK_RETRIEVE:
1477         resultset = c->tasks->u.retrieve.resultset;
1478
1479         start = &c->tasks->u.retrieve.start;
1480         count = &c->tasks->u.retrieve.count;
1481
1482         if (*start >= resultset->size)
1483             return zoom_complete;
1484         if (*start + *count > resultset->size)
1485             *count = resultset->size - *start;
1486
1487         for (i = 0; i < *count; i++)
1488         {
1489             ZOOM_record rec =
1490                 record_cache_lookup(resultset, i + *start,
1491                                     c->tasks->u.retrieve.syntax,
1492                                     c->tasks->u.retrieve.elementSetName);
1493             if (!rec)
1494                 break;
1495             else
1496             {
1497                 ZOOM_Event event = ZOOM_Event_create(ZOOM_EVENT_RECV_RECORD);
1498                 ZOOM_connection_put_event(c, event);
1499             }
1500         }
1501         *start += i;
1502         *count -= i;
1503
1504         if (*count == 0)
1505             return zoom_complete;
1506         break;
1507     default:
1508         return zoom_complete;
1509     }
1510     assert(resultset->query);
1511
1512     sr = ZOOM_srw_get_pdu(c, Z_SRW_searchRetrieve_request);
1513     if (resultset->query->z_query->which == Z_Query_type_104
1514         && resultset->query->z_query->u.type_104->which == Z_External_CQL)
1515     {
1516         sr->u.request->query_type = Z_SRW_query_type_cql;
1517         sr->u.request->query.cql =resultset->query->z_query->u.type_104->u.cql;
1518     }
1519     else if (resultset->query->z_query->which == Z_Query_type_1 &&
1520              resultset->query->z_query->u.type_1)
1521     {
1522         sr->u.request->query_type = Z_SRW_query_type_pqf;
1523         sr->u.request->query.pqf = resultset->query->query_string;
1524     }
1525     else
1526     {
1527         set_ZOOM_error(c, ZOOM_ERROR_UNSUPPORTED_QUERY, 0);
1528         return zoom_complete;
1529     }
1530     sr->u.request->startRecord = odr_intdup(c->odr_out, *start + 1);
1531     sr->u.request->maximumRecords = odr_intdup(
1532         c->odr_out, resultset->step>0 ? resultset->step : *count);
1533     sr->u.request->recordSchema = resultset->schema;
1534
1535     option_val = ZOOM_resultset_option_get(resultset, "recordPacking");
1536     if (option_val)
1537         sr->u.request->recordPacking = odr_strdup(c->odr_out, option_val);
1538
1539     option_val = ZOOM_resultset_option_get(resultset, "extraArgs");
1540     if (option_val)
1541         sr->extra_args = odr_strdup(c->odr_out, option_val);
1542     return send_srw(c, sr);
1543 }
1544 #else
1545 static zoom_ret ZOOM_connection_srw_send_search(ZOOM_connection c)
1546 {
1547     return zoom_complete;
1548 }
1549 #endif
1550
1551 static zoom_ret ZOOM_connection_send_search(ZOOM_connection c)
1552 {
1553     ZOOM_resultset r;
1554     int lslb, ssub, mspn;
1555     const char *syntax;
1556     Z_APDU *apdu = zget_APDU(c->odr_out, Z_APDU_searchRequest);
1557     Z_SearchRequest *search_req = apdu->u.searchRequest;
1558     const char *elementSetName;
1559     const char *smallSetElementSetName;
1560     const char *mediumSetElementSetName;
1561
1562     assert(c->tasks);
1563     assert(c->tasks->which == ZOOM_TASK_SEARCH);
1564
1565     r = c->tasks->u.search.resultset;
1566
1567     yaz_log(log_details, "%p ZOOM_connection_send_search set=%p", c, r);
1568
1569     elementSetName =
1570         ZOOM_options_get(r->options, "elementSetName");
1571     smallSetElementSetName  =
1572         ZOOM_options_get(r->options, "smallSetElementSetName");
1573     mediumSetElementSetName =
1574         ZOOM_options_get(r->options, "mediumSetElementSetName");
1575
1576     if (!smallSetElementSetName)
1577         smallSetElementSetName = elementSetName;
1578
1579     if (!mediumSetElementSetName)
1580         mediumSetElementSetName = elementSetName;
1581
1582     assert(r);
1583     assert(r->query);
1584
1585     /* prepare query for the search request */
1586     search_req->query = r->query->z_query;
1587     if (!search_req->query)
1588     {
1589         set_ZOOM_error(c, ZOOM_ERROR_INVALID_QUERY, 0);
1590         return zoom_complete;
1591     }
1592     if (r->query->z_query->which == Z_Query_type_1 ||
1593         r->query->z_query->which == Z_Query_type_101)
1594     {
1595         const char *cp = ZOOM_options_get(r->options, "rpnCharset");
1596         if (cp)
1597         {
1598             yaz_iconv_t cd = yaz_iconv_open(cp, "UTF-8");
1599             if (cd)
1600             {
1601                 search_req->query = yaz_copy_Z_Query(search_req->query,
1602                                                      c->odr_out);
1603
1604                 yaz_query_charset_convert_rpnquery(search_req->query->u.type_1,
1605                                                    c->odr_out, cd);
1606                 yaz_iconv_close(cd);
1607             }
1608         }
1609     }
1610     search_req->databaseNames = r->databaseNames;
1611     search_req->num_databaseNames = r->num_databaseNames;
1612
1613     /* get syntax (no need to provide unless piggyback is in effect) */
1614     syntax = c->tasks->u.search.syntax;
1615
1616     lslb = ZOOM_options_get_int(r->options, "largeSetLowerBound", -1);
1617     ssub = ZOOM_options_get_int(r->options, "smallSetUpperBound", -1);
1618     mspn = ZOOM_options_get_int(r->options, "mediumSetPresentNumber", -1);
1619     if (lslb != -1 && ssub != -1 && mspn != -1)
1620     {
1621         /* So're a Z39.50 expert? Let's hope you don't do sort */
1622         *search_req->largeSetLowerBound = lslb;
1623         *search_req->smallSetUpperBound = ssub;
1624         *search_req->mediumSetPresentNumber = mspn;
1625     }
1626     else if (c->tasks->u.search.start == 0 && c->tasks->u.search.count > 0
1627              && r->piggyback && !r->r_sort_spec && !r->schema)
1628     {
1629         /* Regular piggyback - do it unless we're going to do sort */
1630         *search_req->largeSetLowerBound = 2000000000;
1631         *search_req->smallSetUpperBound = 1;
1632         *search_req->mediumSetPresentNumber =
1633             r->step>0 ? r->step : c->tasks->u.search.count;
1634     }
1635     else
1636     {
1637         /* non-piggyback. Need not provide elementsets or syntaxes .. */
1638         smallSetElementSetName = 0;
1639         mediumSetElementSetName = 0;
1640         syntax = 0;
1641     }
1642     if (smallSetElementSetName && *smallSetElementSetName)
1643     {
1644         Z_ElementSetNames *esn = (Z_ElementSetNames *)
1645             odr_malloc(c->odr_out, sizeof(*esn));
1646
1647         esn->which = Z_ElementSetNames_generic;
1648         esn->u.generic = odr_strdup(c->odr_out, smallSetElementSetName);
1649         search_req->smallSetElementSetNames = esn;
1650     }
1651     if (mediumSetElementSetName && *mediumSetElementSetName)
1652     {
1653         Z_ElementSetNames *esn =(Z_ElementSetNames *)
1654             odr_malloc(c->odr_out, sizeof(*esn));
1655
1656         esn->which = Z_ElementSetNames_generic;
1657         esn->u.generic = odr_strdup(c->odr_out, mediumSetElementSetName);
1658         search_req->mediumSetElementSetNames = esn;
1659     }
1660     if (syntax)
1661         search_req->preferredRecordSyntax =
1662             zoom_yaz_str_to_z3950oid(c, CLASS_RECSYN, syntax);
1663
1664     if (!r->setname)
1665     {
1666         if (c->support_named_resultsets)
1667         {
1668             char setname[14];
1669             int ord;
1670             /* find the lowest unused ordinal so that we re-use
1671                result sets on the server. */
1672             for (ord = 1; ; ord++)
1673             {
1674                 ZOOM_resultset rp;
1675                 sprintf(setname, "%d", ord);
1676                 for (rp = c->resultsets; rp; rp = rp->next)
1677                     if (rp->setname && !strcmp(rp->setname, setname))
1678                         break;
1679                 if (!rp)
1680                     break;
1681             }
1682             r->setname = xstrdup(setname);
1683             yaz_log(log_details, "%p ZOOM_connection_send_search: allocating "
1684                     "set %s", c, r->setname);
1685         }
1686         else
1687         {
1688             yaz_log(log_details, "%p ZOOM_connection_send_search: using "
1689                     "default set", c);
1690             r->setname = xstrdup("default");
1691         }
1692         ZOOM_options_set(r->options, "setname", r->setname);
1693     }
1694     search_req->resultSetName = odr_strdup(c->odr_out, r->setname);
1695     return send_APDU(c, apdu);
1696 }
1697
1698 static void response_default_diag(ZOOM_connection c, Z_DefaultDiagFormat *r)
1699 {
1700     char oid_name_buf[OID_STR_MAX];
1701     const char *oid_name;
1702     char *addinfo = 0;
1703
1704     oid_name = yaz_oid_to_string_buf(r->diagnosticSetId, 0, oid_name_buf);
1705     switch (r->which)
1706     {
1707     case Z_DefaultDiagFormat_v2Addinfo:
1708         addinfo = r->u.v2Addinfo;
1709         break;
1710     case Z_DefaultDiagFormat_v3Addinfo:
1711         addinfo = r->u.v3Addinfo;
1712         break;
1713     }
1714     xfree(c->addinfo);
1715     c->addinfo = 0;
1716     set_dset_error(c, *r->condition, oid_name, addinfo, 0);
1717 }
1718
1719 static void response_diag(ZOOM_connection c, Z_DiagRec *p)
1720 {
1721     if (p->which != Z_DiagRec_defaultFormat)
1722         set_ZOOM_error(c, ZOOM_ERROR_DECODE, 0);
1723     else
1724         response_default_diag(c, p->u.defaultFormat);
1725 }
1726
1727 ZOOM_API(ZOOM_record)
1728     ZOOM_record_clone(ZOOM_record srec)
1729 {
1730     char *buf;
1731     int size;
1732     ODR odr_enc;
1733     ZOOM_record nrec;
1734
1735     odr_enc = odr_createmem(ODR_ENCODE);
1736     if (!z_NamePlusRecord(odr_enc, &srec->npr, 0, 0))
1737         return 0;
1738     buf = odr_getbuf(odr_enc, &size, 0);
1739
1740     nrec = (ZOOM_record) xmalloc(sizeof(*nrec));
1741     nrec->odr = odr_createmem(ODR_DECODE);
1742     nrec->wrbuf_marc = 0;
1743     nrec->wrbuf_iconv = 0;
1744     nrec->wrbuf_opac = 0;
1745     odr_setbuf(nrec->odr, buf, size, 0);
1746     z_NamePlusRecord(nrec->odr, &nrec->npr, 0, 0);
1747
1748     odr_destroy(odr_enc);
1749     return nrec;
1750 }
1751
1752 ZOOM_API(ZOOM_record)
1753     ZOOM_resultset_record_immediate(ZOOM_resultset s,size_t pos)
1754 {
1755     const char *syntax =
1756         ZOOM_options_get(s->options, "preferredRecordSyntax");
1757     const char *elementSetName =
1758         ZOOM_options_get(s->options, "elementSetName");
1759
1760     return record_cache_lookup(s, pos, syntax, elementSetName);
1761 }
1762
1763 ZOOM_API(ZOOM_record)
1764     ZOOM_resultset_record(ZOOM_resultset r, size_t pos)
1765 {
1766     ZOOM_record rec = ZOOM_resultset_record_immediate(r, pos);
1767
1768     if (!rec)
1769     {
1770         /*
1771          * MIKE: I think force_sync should always be zero, but I don't
1772          * want to make this change until I get the go-ahead from
1773          * Adam, in case something depends on the old synchronous
1774          * behaviour.
1775          */
1776         int force_sync = 1;
1777         if (getenv("ZOOM_RECORD_NO_FORCE_SYNC")) force_sync = 0;
1778         ZOOM_resultset_retrieve(r, force_sync, pos, 1);
1779         rec = ZOOM_resultset_record_immediate(r, pos);
1780     }
1781     return rec;
1782 }
1783
1784 ZOOM_API(void)
1785     ZOOM_record_destroy(ZOOM_record rec)
1786 {
1787     if (!rec)
1788         return;
1789     if (rec->wrbuf_marc)
1790         wrbuf_destroy(rec->wrbuf_marc);
1791     if (rec->wrbuf_iconv)
1792         wrbuf_destroy(rec->wrbuf_iconv);
1793     if (rec->wrbuf_opac)
1794         wrbuf_destroy(rec->wrbuf_opac);
1795     odr_destroy(rec->odr);
1796     xfree(rec);
1797 }
1798
1799 static const char *marc_iconv_return(ZOOM_record rec, int marc_type,
1800                                      int *len,
1801                                      const char *buf, int sz,
1802                                      const char *record_charset)
1803 {
1804     char to[40];
1805     char from[40];
1806     yaz_iconv_t cd = 0;
1807     yaz_marc_t mt = yaz_marc_create();
1808
1809     *from = '\0';
1810     strcpy(to, "UTF-8");
1811     if (record_charset && *record_charset)
1812     {
1813         /* Use "from,to" or just "from" */
1814         const char *cp = strchr(record_charset, ',');
1815         int clen = strlen(record_charset);
1816         if (cp && cp[1])
1817         {
1818             strncpy( to, cp+1, sizeof(to)-1);
1819             to[sizeof(to)-1] = '\0';
1820             clen = cp - record_charset;
1821         }
1822         if (clen > sizeof(from)-1)
1823             clen = sizeof(from)-1;
1824
1825         if (clen)
1826             strncpy(from, record_charset, clen);
1827         from[clen] = '\0';
1828     }
1829
1830     if (*from && *to)
1831     {
1832         cd = yaz_iconv_open(to, from);
1833         yaz_marc_iconv(mt, cd);
1834     }
1835
1836     yaz_marc_xml(mt, marc_type);
1837     if (!rec->wrbuf_marc)
1838         rec->wrbuf_marc = wrbuf_alloc();
1839     wrbuf_rewind(rec->wrbuf_marc);
1840     if (yaz_marc_decode_wrbuf(mt, buf, sz, rec->wrbuf_marc) > 0)
1841     {
1842         yaz_marc_destroy(mt);
1843         if (cd)
1844             yaz_iconv_close(cd);
1845         if (len)
1846             *len = wrbuf_len(rec->wrbuf_marc);
1847         return wrbuf_cstr(rec->wrbuf_marc);
1848     }
1849     yaz_marc_destroy(mt);
1850     if (cd)
1851         yaz_iconv_close(cd);
1852     return 0;
1853 }
1854
1855 static const char *record_iconv_return(ZOOM_record rec, int *len,
1856                                        const char *buf, int sz,
1857                                        const char *record_charset)
1858 {
1859     char to[40];
1860     char from[40];
1861     yaz_iconv_t cd = 0;
1862
1863     *from = '\0';
1864     strcpy(to, "UTF-8");
1865
1866     if (record_charset && *record_charset)
1867     {
1868         /* Use "from,to" or just "from" */
1869         const char *cp = strchr(record_charset, ',');
1870         int clen = strlen(record_charset);
1871         if (cp && cp[1])
1872         {
1873             strncpy( to, cp+1, sizeof(to)-1);
1874             to[sizeof(to)-1] = '\0';
1875             clen = cp - record_charset;
1876         }
1877         if (clen > sizeof(from)-1)
1878             clen = sizeof(from)-1;
1879
1880         if (clen)
1881             strncpy(from, record_charset, clen);
1882         from[clen] = '\0';
1883     }
1884
1885     if (*from && *to && (cd = yaz_iconv_open(to, from)))
1886     {
1887         if (!rec->wrbuf_iconv)
1888             rec->wrbuf_iconv = wrbuf_alloc();
1889
1890         wrbuf_rewind(rec->wrbuf_iconv);
1891
1892         wrbuf_iconv_write(rec->wrbuf_iconv, cd, buf, sz);
1893         wrbuf_iconv_reset(rec->wrbuf_iconv, cd);
1894
1895         buf = wrbuf_cstr(rec->wrbuf_iconv);
1896         sz = wrbuf_len(rec->wrbuf_iconv);
1897         yaz_iconv_close(cd);
1898     }
1899     if (len)
1900         *len = sz;
1901     return buf;
1902 }
1903
1904 ZOOM_API(int)
1905     ZOOM_record_error(ZOOM_record rec, const char **cp,
1906                       const char **addinfo, const char **diagset)
1907 {
1908     Z_NamePlusRecord *npr;
1909
1910     if (!rec)
1911         return 0;
1912     npr = rec->npr;
1913     if (npr && npr->which == Z_NamePlusRecord_surrogateDiagnostic)
1914     {
1915         Z_DiagRec *diag_rec = npr->u.surrogateDiagnostic;
1916         int error = YAZ_BIB1_UNSPECIFIED_ERROR;
1917         const char *add = 0;
1918
1919         if (diag_rec->which == Z_DiagRec_defaultFormat)
1920         {
1921             Z_DefaultDiagFormat *ddf = diag_rec->u.defaultFormat;
1922             oid_class oclass;
1923
1924             error = *ddf->condition;
1925             switch (ddf->which)
1926             {
1927             case Z_DefaultDiagFormat_v2Addinfo:
1928                 add = ddf->u.v2Addinfo;
1929                 break;
1930             case Z_DefaultDiagFormat_v3Addinfo:
1931                 add = ddf->u.v3Addinfo;
1932                 break;
1933             }
1934             if (diagset)
1935                 *diagset =
1936                     yaz_oid_to_string(yaz_oid_std(),
1937                                       ddf->diagnosticSetId, &oclass);
1938         }
1939         else
1940         {
1941             if (diagset)
1942                 *diagset = "Bib-1";
1943         }
1944         if (addinfo)
1945             *addinfo = add ? add : "";
1946         if (cp)
1947             *cp = diagbib1_str(error);
1948         return error;
1949     }
1950     return 0;
1951 }
1952
1953 ZOOM_API(const char *)
1954     ZOOM_record_get(ZOOM_record rec, const char *type_spec, int *len)
1955 {
1956     char type[40];
1957     char charset[40];
1958     char xpath[512];
1959     const char *cp;
1960     int i;
1961     Z_NamePlusRecord *npr;
1962
1963     if (len)
1964         *len = 0; /* default return */
1965
1966     if (!rec)
1967         return 0;
1968     npr = rec->npr;
1969     if (!npr)
1970         return 0;
1971
1972     cp = type_spec;
1973     for (i = 0; cp[i] && i < sizeof(type)-1; i++)
1974     {
1975         if (cp[i] == ';' || cp[i] == ' ')
1976             break;
1977         type[i] = cp[i];
1978     }
1979     type[i] = '\0';
1980     charset[0] = '\0';
1981     while (type_spec[i] == ';')
1982     {
1983         i++;
1984         while (type_spec[i] == ' ')
1985             i++;
1986         if (!strncmp(type_spec+i, "charset=", 8))
1987         {
1988             int j = 0;
1989             i = i + 8; /* skip charset= */
1990             for (j = 0; type_spec[i]  && j < sizeof(charset)-1; i++, j++)
1991             {
1992                 if (type_spec[i] == ';' || type_spec[i] == ' ')
1993                     break;
1994                 charset[j] = cp[i];
1995             }
1996             charset[j] = '\0';
1997         }
1998         else if (!strncmp(type_spec+i, "xpath=", 6))
1999         {
2000             int j = 0;
2001             i = i + 6;
2002             for (j = 0; type_spec[i] && j < sizeof(xpath)-1; i++, j++)
2003                 xpath[j] = cp[i];
2004             xpath[j] = '\0';
2005         }
2006         while (type_spec[i] == ' ')
2007             i++;
2008     }
2009     if (!strcmp(type, "database"))
2010     {
2011         if (len)
2012             *len = (npr->databaseName ? strlen(npr->databaseName) : 0);
2013         return npr->databaseName;
2014     }
2015     else if (!strcmp(type, "schema"))
2016     {
2017         if (len)
2018             *len = rec->schema ? strlen(rec->schema) : 0;
2019         return rec->schema;
2020     }
2021     else if (!strcmp(type, "syntax"))
2022     {
2023         const char *desc = 0;
2024         if (npr->which == Z_NamePlusRecord_databaseRecord)
2025         {
2026             Z_External *r = (Z_External *) npr->u.databaseRecord;
2027             desc = yaz_oid_to_string(yaz_oid_std(), r->direct_reference, 0);
2028         }
2029         if (!desc)
2030             desc = "none";
2031         if (len)
2032             *len = strlen(desc);
2033         return desc;
2034     }
2035     if (npr->which != Z_NamePlusRecord_databaseRecord)
2036         return 0;
2037
2038     /* from now on - we have a database record .. */
2039     if (!strcmp(type, "render"))
2040     {
2041         Z_External *r = (Z_External *) npr->u.databaseRecord;
2042         const Odr_oid *oid = r->direct_reference;
2043
2044         /* render bibliographic record .. */
2045         if (r->which == Z_External_OPAC)
2046         {
2047             r = r->u.opac->bibliographicRecord;
2048             if (!r)
2049                 return 0;
2050             oid = r->direct_reference;
2051         }
2052         if (r->which == Z_External_sutrs)
2053             return record_iconv_return(rec, len,
2054                                        (char*) r->u.sutrs->buf,
2055                                        r->u.sutrs->len,
2056                                        charset);
2057         else if (r->which == Z_External_octet)
2058         {
2059             if (yaz_oid_is_iso2709(oid))
2060             {
2061                 const char *ret_buf = marc_iconv_return(
2062                     rec, YAZ_MARC_LINE, len,
2063                     (const char *) r->u.octet_aligned->buf,
2064                     r->u.octet_aligned->len,
2065                     charset);
2066                 if (ret_buf)
2067                     return ret_buf;
2068             }
2069             return record_iconv_return(rec, len,
2070                                        (const char *) r->u.octet_aligned->buf,
2071                                        r->u.octet_aligned->len,
2072                                        charset);
2073         }
2074         else if (r->which == Z_External_grs1)
2075         {
2076             if (!rec->wrbuf_marc)
2077                 rec->wrbuf_marc = wrbuf_alloc();
2078             wrbuf_rewind(rec->wrbuf_marc);
2079             yaz_display_grs1(rec->wrbuf_marc, r->u.grs1, 0);
2080             return record_iconv_return(rec, len,
2081                                        wrbuf_buf(rec->wrbuf_marc),
2082                                        wrbuf_len(rec->wrbuf_marc),
2083                                        charset);
2084         }
2085         return 0;
2086     }
2087     else if (!strcmp(type, "xml"))
2088     {
2089         Z_External *r = (Z_External *) npr->u.databaseRecord;
2090         const Odr_oid *oid = r->direct_reference;
2091
2092         /* render bibliographic record .. */
2093         if (r->which == Z_External_OPAC)
2094         {
2095             r = r->u.opac->bibliographicRecord;
2096             if (!r)
2097                 return 0;
2098             oid = r->direct_reference;
2099         }
2100
2101         if (r->which == Z_External_sutrs)
2102             return record_iconv_return(rec, len,
2103                                        (const char *) r->u.sutrs->buf,
2104                                        r->u.sutrs->len,
2105                                        charset);
2106         else if (r->which == Z_External_octet)
2107         {
2108             int marc_decode_type = YAZ_MARC_MARCXML;
2109             if (yaz_oid_is_iso2709(oid))
2110             {
2111                 const char *ret_buf = marc_iconv_return(
2112                     rec, marc_decode_type, len,
2113                     (const char *) r->u.octet_aligned->buf,
2114                     r->u.octet_aligned->len,
2115                     charset);
2116                 if (ret_buf)
2117                     return ret_buf;
2118             }
2119             return record_iconv_return(rec, len,
2120                                        (const char *) r->u.octet_aligned->buf,
2121                                        r->u.octet_aligned->len,
2122                                        charset);
2123         }
2124         else if (r->which == Z_External_grs1)
2125         {
2126             if (len) *len = 5;
2127             return "GRS-1";
2128         }
2129         return 0;
2130     }
2131     else if (!strcmp(type, "raw"))
2132     {
2133         Z_External *r = (Z_External *) npr->u.databaseRecord;
2134
2135         if (r->which == Z_External_sutrs)
2136         {
2137             if (len) *len = r->u.sutrs->len;
2138             return (const char *) r->u.sutrs->buf;
2139         }
2140         else if (r->which == Z_External_octet)
2141         {
2142             if (len) *len = r->u.octet_aligned->len;
2143             return (const char *) r->u.octet_aligned->buf;
2144         }
2145         else /* grs-1, explain, OPAC, ... */
2146         {
2147             if (len) *len = -1;
2148             return (const char *) npr->u.databaseRecord;
2149         }
2150         return 0;
2151     }
2152     else if (!strcmp (type, "ext"))
2153     {
2154         if (len) *len = -1;
2155         return (const char *) npr->u.databaseRecord;
2156     }
2157     else if (!strcmp (type, "opac"))
2158
2159     {
2160         Z_External *r = (Z_External *) npr->u.databaseRecord;
2161         if (r->which == Z_External_OPAC)
2162         {
2163             if (!rec->wrbuf_opac)
2164                 rec->wrbuf_opac = wrbuf_alloc();
2165             wrbuf_rewind(rec->wrbuf_opac);
2166             yaz_display_OPAC(rec->wrbuf_opac, r->u.opac, 0);
2167             return record_iconv_return(rec, len,
2168                                        wrbuf_buf(rec->wrbuf_opac),
2169                                        wrbuf_len(rec->wrbuf_opac),
2170                                        charset);
2171         }
2172     }
2173     return 0;
2174 }
2175
2176 static int strcmp_null(const char *v1, const char *v2)
2177 {
2178     if (!v1 && !v2)
2179         return 0;
2180     if (!v1 || !v2)
2181         return -1;
2182     return strcmp(v1, v2);
2183 }
2184
2185 static size_t record_hash(int pos)
2186 {
2187     if (pos < 0)
2188         pos = 0;
2189     return pos % RECORD_HASH_SIZE;
2190 }
2191
2192 static void record_cache_add(ZOOM_resultset r, Z_NamePlusRecord *npr,
2193                              int pos,
2194                              const char *syntax, const char *elementSetName,
2195                              const char *schema)
2196 {
2197     ZOOM_record_cache rc;
2198
2199     ZOOM_Event event = ZOOM_Event_create(ZOOM_EVENT_RECV_RECORD);
2200     ZOOM_connection_put_event(r->connection, event);
2201
2202     for (rc = r->record_hash[record_hash(pos)]; rc; rc = rc->next)
2203     {
2204         if (pos == rc->pos)
2205         {
2206             if (strcmp_null(r->schema, rc->schema))
2207                 continue;
2208             if (strcmp_null(elementSetName,rc->elementSetName))
2209                 continue;
2210             if (strcmp_null(syntax, rc->syntax))
2211                 continue;
2212             /* not destroying rc->npr (it's handled by nmem )*/
2213             rc->rec.npr = npr;
2214             /* keeping wrbuf_marc too */
2215             return;
2216         }
2217     }
2218     rc = (ZOOM_record_cache) odr_malloc(r->odr, sizeof(*rc));
2219     rc->rec.npr = npr;
2220     rc->rec.schema = schema ? odr_strdup(r->odr, schema) : 0;
2221     rc->rec.odr = 0;
2222     rc->rec.wrbuf_marc = 0;
2223     rc->rec.wrbuf_iconv = 0;
2224     rc->rec.wrbuf_opac = 0;
2225     if (elementSetName)
2226         rc->elementSetName = odr_strdup(r->odr, elementSetName);
2227     else
2228         rc->elementSetName = 0;
2229
2230     if (syntax)
2231         rc->syntax = odr_strdup(r->odr, syntax);
2232     else
2233         rc->syntax = 0;
2234
2235     if (r->schema)
2236         rc->schema = odr_strdup(r->odr, r->schema);
2237     else
2238         rc->schema = 0;
2239
2240     rc->pos = pos;
2241     rc->next = r->record_hash[record_hash(pos)];
2242     r->record_hash[record_hash(pos)] = rc;
2243 }
2244
2245 static ZOOM_record record_cache_lookup(ZOOM_resultset r, int pos,
2246                                        const char *syntax,
2247                                        const char *elementSetName)
2248 {
2249     ZOOM_record_cache rc;
2250
2251     for (rc = r->record_hash[record_hash(pos)]; rc; rc = rc->next)
2252     {
2253         if (pos == rc->pos)
2254         {
2255             if (strcmp_null(r->schema, rc->schema))
2256                 continue;
2257             if (strcmp_null(elementSetName,rc->elementSetName))
2258                 continue;
2259             if (strcmp_null(syntax, rc->syntax))
2260                 continue;
2261             return &rc->rec;
2262         }
2263     }
2264     return 0;
2265 }
2266
2267 static void handle_records(ZOOM_connection c, Z_Records *sr,
2268                            int present_phase)
2269 {
2270     ZOOM_resultset resultset;
2271     int *start, *count;
2272     const char *syntax = 0, *elementSetName = 0;
2273
2274     if (!c->tasks)
2275         return ;
2276     switch (c->tasks->which)
2277     {
2278     case ZOOM_TASK_SEARCH:
2279         resultset = c->tasks->u.search.resultset;
2280         start = &c->tasks->u.search.start;
2281         count = &c->tasks->u.search.count;
2282         syntax = c->tasks->u.search.syntax;
2283         elementSetName = c->tasks->u.search.elementSetName;
2284         break;
2285     case ZOOM_TASK_RETRIEVE:
2286         resultset = c->tasks->u.retrieve.resultset;
2287         start = &c->tasks->u.retrieve.start;
2288         count = &c->tasks->u.retrieve.count;
2289         syntax = c->tasks->u.retrieve.syntax;
2290         elementSetName = c->tasks->u.retrieve.elementSetName;
2291         break;
2292     default:
2293         return;
2294     }
2295     if (sr && sr->which == Z_Records_NSD)
2296         response_default_diag(c, sr->u.nonSurrogateDiagnostic);
2297     else if (sr && sr->which == Z_Records_multipleNSD)
2298     {
2299         if (sr->u.multipleNonSurDiagnostics->num_diagRecs >= 1)
2300             response_diag(c, sr->u.multipleNonSurDiagnostics->diagRecs[0]);
2301         else
2302             set_ZOOM_error(c, ZOOM_ERROR_DECODE, 0);
2303     }
2304     else
2305     {
2306         if (*count + *start > resultset->size)
2307             *count = resultset->size - *start;
2308         if (*count < 0)
2309             *count = 0;
2310         if (sr && sr->which == Z_Records_DBOSD)
2311         {
2312             int i;
2313             NMEM nmem = odr_extract_mem(c->odr_in);
2314             Z_NamePlusRecordList *p =
2315                 sr->u.databaseOrSurDiagnostics;
2316             for (i = 0; i<p->num_records; i++)
2317             {
2318                 record_cache_add(resultset, p->records[i], i + *start,
2319                                  syntax, elementSetName,
2320                                  elementSetName);
2321             }
2322             *count -= i;
2323             if (*count < 0)
2324                 *count = 0;
2325             *start += i;
2326             yaz_log(log_details,
2327                     "handle_records resultset=%p start=%d count=%d",
2328                     resultset, *start, *count);
2329
2330             /* transfer our response to search_nmem .. we need it later */
2331             nmem_transfer(odr_getmem(resultset->odr), nmem);
2332             nmem_destroy(nmem);
2333             if (present_phase && p->num_records == 0)
2334             {
2335                 /* present response and we didn't get any records! */
2336                 Z_NamePlusRecord *myrec =
2337                     zget_surrogateDiagRec(resultset->odr, 0, 14, 0);
2338                 record_cache_add(resultset, myrec, *start,
2339                                  syntax, elementSetName, 0);
2340             }
2341         }
2342         else if (present_phase)
2343         {
2344             /* present response and we didn't get any records! */
2345             Z_NamePlusRecord *myrec =
2346                 zget_surrogateDiagRec(resultset->odr, 0, 14, 0);
2347             record_cache_add(resultset, myrec, *start, syntax, elementSetName,
2348                              0);
2349         }
2350     }
2351 }
2352
2353 static void handle_present_response(ZOOM_connection c, Z_PresentResponse *pr)
2354 {
2355     handle_records(c, pr->records, 1);
2356 }
2357
2358 static void handle_queryExpressionTerm(ZOOM_options opt, const char *name,
2359                                        Z_Term *term)
2360 {
2361     switch (term->which)
2362     {
2363     case Z_Term_general:
2364         ZOOM_options_setl(opt, name,
2365                           (const char *)(term->u.general->buf),
2366                           term->u.general->len);
2367         break;
2368     case Z_Term_characterString:
2369         ZOOM_options_set(opt, name, term->u.characterString);
2370         break;
2371     case Z_Term_numeric:
2372         ZOOM_options_set_int(opt, name, *term->u.numeric);
2373         break;
2374     }
2375 }
2376
2377 static void handle_queryExpression(ZOOM_options opt, const char *name,
2378                                    Z_QueryExpression *exp)
2379 {
2380     char opt_name[80];
2381
2382     switch (exp->which)
2383     {
2384     case Z_QueryExpression_term:
2385         if (exp->u.term && exp->u.term->queryTerm)
2386         {
2387             sprintf(opt_name, "%s.term", name);
2388             handle_queryExpressionTerm(opt, opt_name, exp->u.term->queryTerm);
2389         }
2390         break;
2391     case Z_QueryExpression_query:
2392         break;
2393     }
2394 }
2395
2396 static void handle_searchResult(ZOOM_connection c, ZOOM_resultset resultset,
2397                                 Z_OtherInformation *o)
2398 {
2399     int i;
2400     for (i = 0; o && i < o->num_elements; i++)
2401     {
2402         if (o->list[i]->which == Z_OtherInfo_externallyDefinedInfo)
2403         {
2404             Z_External *ext = o->list[i]->information.externallyDefinedInfo;
2405
2406             if (ext->which == Z_External_searchResult1)
2407             {
2408                 int j;
2409                 Z_SearchInfoReport *sr = ext->u.searchResult1;
2410
2411                 if (sr->num)
2412                     ZOOM_options_set_int(
2413                         resultset->options, "searchresult.size", sr->num);
2414
2415                 for (j = 0; j < sr->num; j++)
2416                 {
2417                     Z_SearchInfoReport_s *ent =
2418                         ext->u.searchResult1->elements[j];
2419                     char pref[80];
2420
2421                     sprintf(pref, "searchresult.%d", j);
2422
2423                     if (ent->subqueryId)
2424                     {
2425                         char opt_name[80];
2426                         sprintf(opt_name, "%s.id", pref);
2427                         ZOOM_options_set(resultset->options, opt_name,
2428                                          ent->subqueryId);
2429                     }
2430                     if (ent->subqueryExpression)
2431                     {
2432                         char opt_name[80];
2433                         sprintf(opt_name, "%s.subquery", pref);
2434                         handle_queryExpression(resultset->options, opt_name,
2435                                                ent->subqueryExpression);
2436                     }
2437                     if (ent->subqueryInterpretation)
2438                     {
2439                         char opt_name[80];
2440                         sprintf(opt_name, "%s.interpretation", pref);
2441                         handle_queryExpression(resultset->options, opt_name,
2442                                                ent->subqueryInterpretation);
2443                     }
2444                     if (ent->subqueryRecommendation)
2445                     {
2446                         char opt_name[80];
2447                         sprintf(opt_name, "%s.recommendation", pref);
2448                         handle_queryExpression(resultset->options, opt_name,
2449                                                ent->subqueryRecommendation);
2450                     }
2451                     if (ent->subqueryCount)
2452                     {
2453                         char opt_name[80];
2454                         sprintf(opt_name, "%s.count", pref);
2455                         ZOOM_options_set_int(resultset->options, opt_name,
2456                                              *ent->subqueryCount);
2457                     }
2458                 }
2459             }
2460         }
2461     }
2462 }
2463
2464 static void handle_search_response(ZOOM_connection c, Z_SearchResponse *sr)
2465 {
2466     ZOOM_resultset resultset;
2467     ZOOM_Event event;
2468
2469     if (!c->tasks || c->tasks->which != ZOOM_TASK_SEARCH)
2470         return ;
2471
2472     event = ZOOM_Event_create(ZOOM_EVENT_RECV_SEARCH);
2473     ZOOM_connection_put_event(c, event);
2474
2475     resultset = c->tasks->u.search.resultset;
2476
2477     if (sr->resultSetStatus)
2478     {
2479         ZOOM_options_set_int(resultset->options, "resultSetStatus",
2480                              *sr->resultSetStatus);
2481     }
2482     if (sr->presentStatus)
2483     {
2484         ZOOM_options_set_int(resultset->options, "presentStatus",
2485                              *sr->presentStatus);
2486     }
2487     handle_searchResult(c, resultset, sr->additionalSearchInfo);
2488
2489     resultset->size = *sr->resultCount;
2490     handle_records(c, sr->records, 0);
2491 }
2492
2493 static void sort_response(ZOOM_connection c, Z_SortResponse *res)
2494 {
2495     if (res->diagnostics && res->num_diagnostics > 0)
2496         response_diag(c, res->diagnostics[0]);
2497 }
2498
2499 static int scan_response(ZOOM_connection c, Z_ScanResponse *res)
2500 {
2501     NMEM nmem = odr_extract_mem(c->odr_in);
2502     ZOOM_scanset scan;
2503
2504     if (!c->tasks || c->tasks->which != ZOOM_TASK_SCAN)
2505         return 0;
2506     scan = c->tasks->u.scan.scan;
2507
2508     if (res->entries && res->entries->nonsurrogateDiagnostics)
2509         response_diag(c, res->entries->nonsurrogateDiagnostics[0]);
2510     scan->scan_response = res;
2511     scan->srw_scan_response = 0;
2512     nmem_transfer(odr_getmem(scan->odr), nmem);
2513     if (res->stepSize)
2514         ZOOM_options_set_int(scan->options, "stepSize", *res->stepSize);
2515     if (res->positionOfTerm)
2516         ZOOM_options_set_int(scan->options, "position", *res->positionOfTerm);
2517     if (res->scanStatus)
2518         ZOOM_options_set_int(scan->options, "scanStatus", *res->scanStatus);
2519     if (res->numberOfEntriesReturned)
2520         ZOOM_options_set_int(scan->options, "number",
2521                              *res->numberOfEntriesReturned);
2522     nmem_destroy(nmem);
2523     return 1;
2524 }
2525
2526 static zoom_ret send_sort(ZOOM_connection c,
2527                           ZOOM_resultset resultset)
2528 {
2529     if (c->error)
2530         resultset->r_sort_spec = 0;
2531     if (resultset->r_sort_spec)
2532     {
2533         Z_APDU *apdu = zget_APDU(c->odr_out, Z_APDU_sortRequest);
2534         Z_SortRequest *req = apdu->u.sortRequest;
2535
2536         req->num_inputResultSetNames = 1;
2537         req->inputResultSetNames = (Z_InternationalString **)
2538             odr_malloc(c->odr_out, sizeof(*req->inputResultSetNames));
2539         req->inputResultSetNames[0] =
2540             odr_strdup(c->odr_out, resultset->setname);
2541         req->sortedResultSetName = odr_strdup(c->odr_out, resultset->setname);
2542         req->sortSequence = resultset->r_sort_spec;
2543         resultset->r_sort_spec = 0;
2544         return send_APDU(c, apdu);
2545     }
2546     return zoom_complete;
2547 }
2548
2549 static zoom_ret send_present(ZOOM_connection c)
2550 {
2551     Z_APDU *apdu = 0;
2552     Z_PresentRequest *req = 0;
2553     int i = 0;
2554     const char *syntax = 0;
2555     const char *elementSetName = 0;
2556     ZOOM_resultset  resultset;
2557     int *start, *count;
2558
2559     if (!c->tasks)
2560     {
2561         yaz_log(log_details, "%p send_present no tasks", c);
2562         return zoom_complete;
2563     }
2564
2565     switch (c->tasks->which)
2566     {
2567     case ZOOM_TASK_SEARCH:
2568         resultset = c->tasks->u.search.resultset;
2569         start = &c->tasks->u.search.start;
2570         count = &c->tasks->u.search.count;
2571         syntax = c->tasks->u.search.syntax;
2572         elementSetName = c->tasks->u.search.elementSetName;
2573         break;
2574     case ZOOM_TASK_RETRIEVE:
2575         resultset = c->tasks->u.retrieve.resultset;
2576         start = &c->tasks->u.retrieve.start;
2577         count = &c->tasks->u.retrieve.count;
2578         syntax = c->tasks->u.retrieve.syntax;
2579         elementSetName = c->tasks->u.retrieve.elementSetName;
2580         break;
2581     default:
2582         return zoom_complete;
2583     }
2584     yaz_log(log_details, "%p send_present start=%d count=%d",
2585             c, *start, *count);
2586
2587     if (*start < 0 || *count < 0 || *start + *count > resultset->size)
2588     {
2589         set_dset_error(c, YAZ_BIB1_PRESENT_REQUEST_OUT_OF_RANGE, "Bib-1",
2590                        "", 0);
2591     }
2592     if (c->error)                  /* don't continue on error */
2593         return zoom_complete;
2594     yaz_log(log_details, "send_present resultset=%p start=%d count=%d",
2595             resultset, *start, *count);
2596
2597     for (i = 0; i < *count; i++)
2598     {
2599         ZOOM_record rec =
2600             record_cache_lookup(resultset, i + *start, syntax, elementSetName);
2601         if (!rec)
2602             break;
2603         else
2604         {
2605             ZOOM_Event event = ZOOM_Event_create(ZOOM_EVENT_RECV_RECORD);
2606             ZOOM_connection_put_event(c, event);
2607         }
2608     }
2609     *start += i;
2610     *count -= i;
2611
2612     if (*count == 0)
2613     {
2614         yaz_log(log_details, "%p send_present skip=%d no more to fetch", c, i);
2615         return zoom_complete;
2616     }
2617
2618     apdu = zget_APDU(c->odr_out, Z_APDU_presentRequest);
2619     req = apdu->u.presentRequest;
2620
2621     if (i)
2622         yaz_log(log_details, "%p send_present skip=%d", c, i);
2623
2624     *req->resultSetStartPoint = *start + 1;
2625     *req->numberOfRecordsRequested = resultset->step>0 ?
2626         resultset->step : *count;
2627     if (*req->numberOfRecordsRequested + *start > resultset->size)
2628         *req->numberOfRecordsRequested = resultset->size - *start;
2629     assert(*req->numberOfRecordsRequested > 0);
2630
2631     if (syntax && *syntax)
2632         req->preferredRecordSyntax =
2633             zoom_yaz_str_to_z3950oid(c, CLASS_RECSYN, syntax);
2634
2635     if (resultset->schema && *resultset->schema)
2636     {
2637         Z_RecordComposition *compo = (Z_RecordComposition *)
2638             odr_malloc(c->odr_out, sizeof(*compo));
2639
2640         req->recordComposition = compo;
2641         compo->which = Z_RecordComp_complex;
2642         compo->u.complex = (Z_CompSpec *)
2643             odr_malloc(c->odr_out, sizeof(*compo->u.complex));
2644         compo->u.complex->selectAlternativeSyntax = (bool_t *)
2645             odr_malloc(c->odr_out, sizeof(bool_t));
2646         *compo->u.complex->selectAlternativeSyntax = 0;
2647
2648         compo->u.complex->generic = (Z_Specification *)
2649             odr_malloc(c->odr_out, sizeof(*compo->u.complex->generic));
2650
2651         compo->u.complex->generic->which = Z_Schema_oid;
2652         compo->u.complex->generic->schema.oid = (Odr_oid *)
2653             zoom_yaz_str_to_z3950oid (c, CLASS_SCHEMA, resultset->schema);
2654
2655         if (!compo->u.complex->generic->schema.oid)
2656         {
2657             /* OID wasn't a schema! Try record syntax instead. */
2658
2659             compo->u.complex->generic->schema.oid = (Odr_oid *)
2660                 zoom_yaz_str_to_z3950oid (c, CLASS_RECSYN, resultset->schema);
2661         }
2662         if (elementSetName && *elementSetName)
2663         {
2664             compo->u.complex->generic->elementSpec = (Z_ElementSpec *)
2665                 odr_malloc(c->odr_out, sizeof(Z_ElementSpec));
2666             compo->u.complex->generic->elementSpec->which =
2667                 Z_ElementSpec_elementSetName;
2668             compo->u.complex->generic->elementSpec->u.elementSetName =
2669                 odr_strdup(c->odr_out, elementSetName);
2670         }
2671         else
2672             compo->u.complex->generic->elementSpec = 0;
2673         compo->u.complex->num_dbSpecific = 0;
2674         compo->u.complex->dbSpecific = 0;
2675         compo->u.complex->num_recordSyntax = 0;
2676         compo->u.complex->recordSyntax = 0;
2677     }
2678     else if (elementSetName && *elementSetName)
2679     {
2680         Z_ElementSetNames *esn = (Z_ElementSetNames *)
2681             odr_malloc(c->odr_out, sizeof(*esn));
2682         Z_RecordComposition *compo = (Z_RecordComposition *)
2683             odr_malloc(c->odr_out, sizeof(*compo));
2684
2685         esn->which = Z_ElementSetNames_generic;
2686         esn->u.generic = odr_strdup(c->odr_out, elementSetName);
2687         compo->which = Z_RecordComp_simple;
2688         compo->u.simple = esn;
2689         req->recordComposition = compo;
2690     }
2691     req->resultSetId = odr_strdup(c->odr_out, resultset->setname);
2692     return send_APDU(c, apdu);
2693 }
2694
2695 ZOOM_API(ZOOM_scanset)
2696     ZOOM_connection_scan(ZOOM_connection c, const char *start)
2697 {
2698     ZOOM_scanset s;
2699     ZOOM_query q = ZOOM_query_create();
2700
2701     ZOOM_query_prefix(q, start);
2702
2703     s = ZOOM_connection_scan1(c, q);
2704     ZOOM_query_destroy(q);
2705     return s;
2706
2707 }
2708
2709 ZOOM_API(ZOOM_scanset)
2710     ZOOM_connection_scan1(ZOOM_connection c, ZOOM_query q)
2711 {
2712     ZOOM_scanset scan = 0;
2713
2714     if (!q->z_query)
2715         return 0;
2716     scan = (ZOOM_scanset) xmalloc(sizeof(*scan));
2717     scan->connection = c;
2718     scan->odr = odr_createmem(ODR_DECODE);
2719     scan->options = ZOOM_options_create_with_parent(c->options);
2720     scan->refcount = 1;
2721     scan->scan_response = 0;
2722     scan->srw_scan_response = 0;
2723
2724     scan->query = q;
2725     (q->refcount)++;
2726     scan->databaseNames = set_DatabaseNames(c, c->options,
2727                                             &scan->num_databaseNames,
2728                                             scan->odr);
2729
2730     if (1)
2731     {
2732         ZOOM_task task = ZOOM_connection_add_task(c, ZOOM_TASK_SCAN);
2733         task->u.scan.scan = scan;
2734
2735         (scan->refcount)++;
2736         if (!c->async)
2737         {
2738             while (ZOOM_event(1, &c))
2739                 ;
2740         }
2741     }
2742     return scan;
2743 }
2744
2745 ZOOM_API(void)
2746     ZOOM_scanset_destroy(ZOOM_scanset scan)
2747 {
2748     if (!scan)
2749         return;
2750     (scan->refcount)--;
2751     if (scan->refcount == 0)
2752     {
2753         ZOOM_query_destroy(scan->query);
2754
2755         odr_destroy(scan->odr);
2756
2757         ZOOM_options_destroy(scan->options);
2758         xfree(scan);
2759     }
2760 }
2761
2762 static zoom_ret send_package(ZOOM_connection c)
2763 {
2764     ZOOM_Event event;
2765
2766     yaz_log(log_details, "%p send_package", c);
2767     if (!c->tasks)
2768         return zoom_complete;
2769     assert (c->tasks->which == ZOOM_TASK_PACKAGE);
2770
2771     event = ZOOM_Event_create(ZOOM_EVENT_SEND_APDU);
2772     ZOOM_connection_put_event(c, event);
2773
2774     c->buf_out = c->tasks->u.package->buf_out;
2775     c->len_out = c->tasks->u.package->len_out;
2776
2777     return do_write(c);
2778 }
2779
2780 static zoom_ret ZOOM_connection_send_scan(ZOOM_connection c)
2781 {
2782     ZOOM_scanset scan;
2783     Z_APDU *apdu = zget_APDU(c->odr_out, Z_APDU_scanRequest);
2784     Z_ScanRequest *req = apdu->u.scanRequest;
2785
2786     yaz_log(log_details, "%p send_scan", c);
2787     if (!c->tasks)
2788         return zoom_complete;
2789     assert (c->tasks->which == ZOOM_TASK_SCAN);
2790     scan = c->tasks->u.scan.scan;
2791
2792     /* Z39.50 scan can only carry RPN */
2793     if (scan->query->z_query->which == Z_Query_type_1 ||
2794         scan->query->z_query->which == Z_Query_type_101)
2795     {
2796         Z_RPNQuery *rpn = scan->query->z_query->u.type_1;
2797         const char *cp = ZOOM_options_get(scan->options, "rpnCharset");
2798         if (cp)
2799         {
2800             yaz_iconv_t cd = yaz_iconv_open(cp, "UTF-8");
2801             if (cd)
2802             {
2803                 rpn = yaz_copy_z_RPNQuery(rpn, c->odr_out);
2804
2805                 yaz_query_charset_convert_rpnquery(
2806                     rpn, c->odr_out, cd);
2807                 yaz_iconv_close(cd);
2808             }
2809         }
2810         req->attributeSet = rpn->attributeSetId;
2811         if (!req->attributeSet)
2812             req->attributeSet = odr_oiddup(c->odr_out, yaz_oid_attset_bib_1);
2813         if (rpn->RPNStructure->which == Z_RPNStructure_simple &&
2814             rpn->RPNStructure->u.simple->which == Z_Operand_APT)
2815         {
2816             req->termListAndStartPoint =
2817                 rpn->RPNStructure->u.simple->u.attributesPlusTerm;
2818         }
2819         else
2820         {
2821             set_ZOOM_error(c, ZOOM_ERROR_INVALID_QUERY, 0);
2822             return zoom_complete;
2823         }
2824     }
2825     else
2826     {
2827         set_ZOOM_error(c, ZOOM_ERROR_UNSUPPORTED_QUERY, 0);
2828         return zoom_complete;
2829     }
2830
2831     *req->numberOfTermsRequested =
2832         ZOOM_options_get_int(scan->options, "number", 10);
2833
2834     req->preferredPositionInResponse =
2835         odr_intdup(c->odr_out,
2836                    ZOOM_options_get_int(scan->options, "position", 1));
2837
2838     req->stepSize =
2839         odr_intdup(c->odr_out,
2840                    ZOOM_options_get_int(scan->options, "stepSize", 0));
2841
2842     req->databaseNames = scan->databaseNames;
2843     req->num_databaseNames = scan->num_databaseNames;
2844
2845     return send_APDU(c, apdu);
2846 }
2847
2848 #if YAZ_HAVE_XML2
2849 static zoom_ret ZOOM_connection_srw_send_scan(ZOOM_connection c)
2850 {
2851     ZOOM_scanset scan;
2852     Z_SRW_PDU *sr = 0;
2853     const char *option_val = 0;
2854
2855     if (!c->tasks)
2856         return zoom_complete;
2857     assert (c->tasks->which == ZOOM_TASK_SCAN);
2858     scan = c->tasks->u.scan.scan;
2859
2860     sr = ZOOM_srw_get_pdu(c, Z_SRW_scan_request);
2861
2862     /* SRU scan can only carry CQL and PQF */
2863     if (scan->query->z_query->which == Z_Query_type_104)
2864     {
2865         sr->u.scan_request->query_type = Z_SRW_query_type_cql;
2866         sr->u.scan_request->scanClause.cql = scan->query->query_string;
2867     }
2868     else if (scan->query->z_query->which == Z_Query_type_1
2869              || scan->query->z_query->which == Z_Query_type_101)
2870     {
2871         sr->u.scan_request->query_type = Z_SRW_query_type_pqf;
2872         sr->u.scan_request->scanClause.pqf = scan->query->query_string;
2873     }
2874     else
2875     {
2876         set_ZOOM_error(c, ZOOM_ERROR_UNSUPPORTED_QUERY, 0);
2877         return zoom_complete;
2878     }
2879
2880     sr->u.scan_request->maximumTerms = odr_intdup(
2881         c->odr_out, ZOOM_options_get_int(scan->options, "number", 10));
2882
2883     sr->u.scan_request->responsePosition = odr_intdup(
2884         c->odr_out, ZOOM_options_get_int(scan->options, "position", 1));
2885
2886     option_val = ZOOM_options_get(scan->options, "extraArgs");
2887     if (option_val)
2888         sr->extra_args = odr_strdup(c->odr_out, option_val);
2889     return send_srw(c, sr);
2890 }
2891 #else
2892 static zoom_ret ZOOM_connection_srw_send_scan(ZOOM_connection c)
2893 {
2894     return zoom_complete;
2895 }
2896 #endif
2897
2898
2899 ZOOM_API(size_t)
2900     ZOOM_scanset_size(ZOOM_scanset scan)
2901 {
2902     if (!scan)
2903         return 0;
2904
2905     if (scan->scan_response && scan->scan_response->entries)
2906         return scan->scan_response->entries->num_entries;
2907     else if (scan->srw_scan_response)
2908         return scan->srw_scan_response->num_terms;
2909     return 0;
2910 }
2911
2912 static void ZOOM_scanset_term_x(ZOOM_scanset scan, size_t pos,
2913                                 int *occ,
2914                                 const char **value_term, size_t *value_len,
2915                                 const char **disp_term, size_t *disp_len)
2916 {
2917     size_t noent = ZOOM_scanset_size(scan);
2918
2919     *value_term = 0;
2920     *value_len = 0;
2921
2922     *disp_term = 0;
2923     *disp_len = 0;
2924
2925     *occ = 0;
2926     if (pos >= noent || pos < 0)
2927         return;
2928     if (scan->scan_response)
2929     {
2930         Z_ScanResponse *res = scan->scan_response;
2931         if (res->entries->entries[pos]->which == Z_Entry_termInfo)
2932         {
2933             Z_TermInfo *t = res->entries->entries[pos]->u.termInfo;
2934
2935             *value_term = (const char *) t->term->u.general->buf;
2936             *value_len = t->term->u.general->len;
2937             if (t->displayTerm)
2938             {
2939                 *disp_term = t->displayTerm;
2940                 *disp_len = strlen(*disp_term);
2941             }
2942             else if (t->term->which == Z_Term_general)
2943             {
2944                 *disp_term = (const char *) t->term->u.general->buf;
2945                 *disp_len = t->term->u.general->len;
2946             }
2947             *occ = t->globalOccurrences ? *t->globalOccurrences : 0;
2948         }
2949     }
2950     if (scan->srw_scan_response)
2951     {
2952         Z_SRW_scanResponse *res = scan->srw_scan_response;
2953         Z_SRW_scanTerm *t = res->terms + pos;
2954         if (t)
2955         {
2956             *value_term = t->value;
2957             *value_len = strlen(*value_term);
2958
2959             if (t->displayTerm)
2960                 *disp_term = t->displayTerm;
2961             else
2962                 *disp_term = t->value;
2963             *disp_len = strlen(*disp_term);
2964             *occ = t->numberOfRecords ? *t->numberOfRecords : 0;
2965         }
2966     }
2967 }
2968
2969 ZOOM_API(const char *)
2970     ZOOM_scanset_term(ZOOM_scanset scan, size_t pos,
2971                       int *occ, int *len)
2972 {
2973     const char *value_term = 0;
2974     size_t value_len = 0;
2975     const char *disp_term = 0;
2976     size_t disp_len = 0;
2977
2978     ZOOM_scanset_term_x(scan, pos, occ, &value_term, &value_len,
2979                         &disp_term, &disp_len);
2980
2981     *len = value_len;
2982     return value_term;
2983 }
2984
2985 ZOOM_API(const char *)
2986     ZOOM_scanset_display_term(ZOOM_scanset scan, size_t pos,
2987                               int *occ, int *len)
2988 {
2989     const char *value_term = 0;
2990     size_t value_len = 0;
2991     const char *disp_term = 0;
2992     size_t disp_len = 0;
2993
2994     ZOOM_scanset_term_x(scan, pos, occ, &value_term, &value_len,
2995                         &disp_term, &disp_len);
2996
2997     *len = disp_len;
2998     return disp_term;
2999 }
3000
3001 ZOOM_API(const char *)
3002     ZOOM_scanset_option_get(ZOOM_scanset scan, const char *key)
3003 {
3004     return ZOOM_options_get(scan->options, key);
3005 }
3006
3007 ZOOM_API(void)
3008     ZOOM_scanset_option_set(ZOOM_scanset scan, const char *key,
3009                             const char *val)
3010 {
3011     ZOOM_options_set(scan->options, key, val);
3012 }
3013
3014 static Z_APDU *create_es_package(ZOOM_package p, const Odr_oid *oid)
3015 {
3016     const char *str;
3017     Z_APDU *apdu = zget_APDU(p->odr_out, Z_APDU_extendedServicesRequest);
3018     Z_ExtendedServicesRequest *req = apdu->u.extendedServicesRequest;
3019
3020     str = ZOOM_options_get(p->options, "package-name");
3021     if (str && *str)
3022         req->packageName = odr_strdup(p->odr_out, str);
3023
3024     str = ZOOM_options_get(p->options, "user-id");
3025     if (str)
3026         req->userId = odr_strdup(p->odr_out, str);
3027
3028     req->packageType = odr_oiddup(p->odr_out, oid);
3029
3030     str = ZOOM_options_get(p->options, "function");
3031     if (str)
3032     {
3033         if (!strcmp (str, "create"))
3034             *req->function = Z_ExtendedServicesRequest_create;
3035         if (!strcmp (str, "delete"))
3036             *req->function = Z_ExtendedServicesRequest_delete;
3037         if (!strcmp (str, "modify"))
3038             *req->function = Z_ExtendedServicesRequest_modify;
3039     }
3040
3041     str = ZOOM_options_get(p->options, "waitAction");
3042     if (str)
3043     {
3044         if (!strcmp (str, "wait"))
3045             *req->waitAction = Z_ExtendedServicesRequest_wait;
3046         if (!strcmp (str, "waitIfPossible"))
3047             *req->waitAction = Z_ExtendedServicesRequest_waitIfPossible;
3048         if (!strcmp (str, "dontWait"))
3049             *req->waitAction = Z_ExtendedServicesRequest_dontWait;
3050         if (!strcmp (str, "dontReturnPackage"))
3051             *req->waitAction = Z_ExtendedServicesRequest_dontReturnPackage;
3052     }
3053     return apdu;
3054 }
3055
3056 static const char *ill_array_lookup(void *clientData, const char *idx)
3057 {
3058     ZOOM_package p = (ZOOM_package) clientData;
3059     return ZOOM_options_get(p->options, idx+4);
3060 }
3061
3062 static Z_External *encode_ill_request(ZOOM_package p)
3063 {
3064     ODR out = p->odr_out;
3065     ILL_Request *req;
3066     Z_External *r = 0;
3067     struct ill_get_ctl ctl;
3068
3069     ctl.odr = p->odr_out;
3070     ctl.clientData = p;
3071     ctl.f = ill_array_lookup;
3072
3073     req = ill_get_ILLRequest(&ctl, "ill", 0);
3074
3075     if (!ill_Request(out, &req, 0, 0))
3076     {
3077         int ill_request_size;
3078         char *ill_request_buf = odr_getbuf(out, &ill_request_size, 0);
3079         if (ill_request_buf)
3080             odr_setbuf(out, ill_request_buf, ill_request_size, 1);
3081         return 0;
3082     }
3083     else
3084     {
3085         int illRequest_size = 0;
3086         char *illRequest_buf = odr_getbuf(out, &illRequest_size, 0);
3087
3088         r = (Z_External *) odr_malloc(out, sizeof(*r));
3089         r->direct_reference = odr_oiddup(out, yaz_oid_general_isoill_1);
3090         r->indirect_reference = 0;
3091         r->descriptor = 0;
3092         r->which = Z_External_single;
3093
3094         r->u.single_ASN1_type =
3095             odr_create_Odr_oct(out,
3096                                (unsigned char *)illRequest_buf,
3097                                illRequest_size);
3098     }
3099     return r;
3100 }
3101
3102 static Z_ItemOrder *encode_item_order(ZOOM_package p)
3103 {
3104     Z_ItemOrder *req = (Z_ItemOrder *) odr_malloc(p->odr_out, sizeof(*req));
3105     const char *str;
3106
3107     req->which = Z_IOItemOrder_esRequest;
3108     req->u.esRequest = (Z_IORequest *)
3109         odr_malloc(p->odr_out,sizeof(Z_IORequest));
3110
3111     /* to keep part ... */
3112     req->u.esRequest->toKeep = (Z_IOOriginPartToKeep *)
3113         odr_malloc(p->odr_out,sizeof(Z_IOOriginPartToKeep));
3114     req->u.esRequest->toKeep->supplDescription = 0;
3115     req->u.esRequest->toKeep->contact = (Z_IOContact *)
3116         odr_malloc(p->odr_out, sizeof(*req->u.esRequest->toKeep->contact));
3117
3118     str = ZOOM_options_get(p->options, "contact-name");
3119     req->u.esRequest->toKeep->contact->name = str ?
3120         odr_strdup(p->odr_out, str) : 0;
3121
3122     str = ZOOM_options_get(p->options, "contact-phone");
3123     req->u.esRequest->toKeep->contact->phone = str ?
3124         odr_strdup(p->odr_out, str) : 0;
3125
3126     str = ZOOM_options_get(p->options, "contact-email");
3127     req->u.esRequest->toKeep->contact->email = str ?
3128         odr_strdup(p->odr_out, str) : 0;
3129
3130     req->u.esRequest->toKeep->addlBilling = 0;
3131
3132     /* not to keep part ... */
3133     req->u.esRequest->notToKeep = (Z_IOOriginPartNotToKeep *)
3134         odr_malloc(p->odr_out,sizeof(Z_IOOriginPartNotToKeep));
3135
3136     str = ZOOM_options_get(p->options, "itemorder-setname");
3137     if (!str)
3138         str = "default";
3139
3140     if (!*str)
3141         req->u.esRequest->notToKeep->resultSetItem = 0;
3142     else
3143     {
3144         req->u.esRequest->notToKeep->resultSetItem = (Z_IOResultSetItem *)
3145             odr_malloc(p->odr_out, sizeof(Z_IOResultSetItem));
3146
3147         req->u.esRequest->notToKeep->resultSetItem->resultSetId =
3148             odr_strdup(p->odr_out, str);
3149         req->u.esRequest->notToKeep->resultSetItem->item =
3150             (int *) odr_malloc(p->odr_out, sizeof(int));
3151
3152         str = ZOOM_options_get(p->options, "itemorder-item");
3153         *req->u.esRequest->notToKeep->resultSetItem->item =
3154             (str ? atoi(str) : 1);
3155     }
3156
3157     str = ZOOM_options_get(p->options, "doc");
3158     if (str)
3159     {
3160         req->u.esRequest->notToKeep->itemRequest =
3161             z_ext_record_xml(p->odr_out, str, strlen(str));
3162     }
3163     else
3164         req->u.esRequest->notToKeep->itemRequest = encode_ill_request(p);
3165
3166     return req;
3167 }
3168
3169 Z_APDU *create_admin_package(ZOOM_package p, int type,
3170                              Z_ESAdminOriginPartToKeep **toKeepP,
3171                              Z_ESAdminOriginPartNotToKeep **notToKeepP)
3172 {
3173     Z_APDU *apdu = create_es_package(p, yaz_oid_extserv_admin);
3174     if (apdu)
3175     {
3176         Z_ESAdminOriginPartToKeep  *toKeep;
3177         Z_ESAdminOriginPartNotToKeep  *notToKeep;
3178         Z_External *r = (Z_External *) odr_malloc(p->odr_out, sizeof(*r));
3179         const char *first_db = "Default";
3180         int num_db;
3181         char **db = set_DatabaseNames(p->connection, p->options, &num_db,
3182                                       p->odr_out);
3183         if (num_db > 0)
3184             first_db = db[0];
3185
3186         r->direct_reference = odr_oiddup(p->odr_out, yaz_oid_extserv_admin);
3187         r->descriptor = 0;
3188         r->indirect_reference = 0;
3189         r->which = Z_External_ESAdmin;
3190
3191         r->u.adminService = (Z_Admin *)
3192             odr_malloc(p->odr_out, sizeof(*r->u.adminService));
3193         r->u.adminService->which = Z_Admin_esRequest;
3194         r->u.adminService->u.esRequest = (Z_AdminEsRequest *)
3195             odr_malloc(p->odr_out, sizeof(*r->u.adminService->u.esRequest));
3196
3197         toKeep = r->u.adminService->u.esRequest->toKeep =
3198             (Z_ESAdminOriginPartToKeep *)
3199             odr_malloc(p->odr_out, sizeof(*r->u.adminService->u.esRequest->toKeep));
3200         toKeep->which = type;
3201         toKeep->databaseName = odr_strdup(p->odr_out, first_db);
3202         toKeep->u.create = odr_nullval();
3203         apdu->u.extendedServicesRequest->taskSpecificParameters = r;
3204
3205         r->u.adminService->u.esRequest->notToKeep = notToKeep =
3206             (Z_ESAdminOriginPartNotToKeep *)
3207             odr_malloc(p->odr_out,
3208                        sizeof(*r->u.adminService->u.esRequest->notToKeep));
3209         notToKeep->which = Z_ESAdminOriginPartNotToKeep_recordsWillFollow;
3210         notToKeep->u.recordsWillFollow = odr_nullval();
3211         if (toKeepP)
3212             *toKeepP = toKeep;
3213         if (notToKeepP)
3214             *notToKeepP = notToKeep;
3215     }
3216     return apdu;
3217 }
3218
3219 static Z_APDU *create_xmlupdate_package(ZOOM_package p)
3220 {
3221     Z_APDU *apdu = create_es_package(p, yaz_oid_extserv_xml_es);
3222     Z_ExtendedServicesRequest *req = apdu->u.extendedServicesRequest;
3223     Z_External *ext = (Z_External *) odr_malloc(p->odr_out, sizeof(*ext));
3224     const char *doc = ZOOM_options_get(p->options, "doc");
3225
3226     if (!doc)
3227         doc = "";
3228
3229     req->taskSpecificParameters = ext;
3230     ext->direct_reference = req->packageType;
3231     ext->descriptor = 0;
3232     ext->indirect_reference = 0;
3233
3234     ext->which = Z_External_octet;
3235     ext->u.single_ASN1_type =
3236         odr_create_Odr_oct(p->odr_out, (const unsigned char *) doc,
3237                            strlen(doc));
3238     return apdu;
3239 }
3240
3241 static Z_APDU *create_update_package(ZOOM_package p)
3242 {
3243     Z_APDU *apdu = 0;
3244     const char *first_db = "Default";
3245     int num_db;
3246     char **db = set_DatabaseNames(p->connection, p->options, &num_db, p->odr_out);
3247     const char *action = ZOOM_options_get(p->options, "action");
3248     const char *recordIdOpaque = ZOOM_options_get(p->options, "recordIdOpaque");
3249     const char *recordIdNumber = ZOOM_options_get(p->options, "recordIdNumber");
3250     const char *record_buf = ZOOM_options_get(p->options, "record");
3251     const char *syntax_str = ZOOM_options_get(p->options, "syntax");
3252     const char *version = ZOOM_options_get(p->options, "updateVersion");
3253
3254     const char *correlationInfo_note =
3255         ZOOM_options_get(p->options, "correlationInfo.note");
3256     const char *correlationInfo_id =
3257         ZOOM_options_get(p->options, "correlationInfo.id");
3258     int action_no = -1;
3259     Odr_oid *syntax_oid = 0;
3260     const Odr_oid *package_oid = yaz_oid_extserv_database_update;
3261
3262     if (!version)
3263         version = "3";
3264     if (!syntax_str)
3265         syntax_str = "xml";
3266     if (!record_buf)
3267     {
3268         record_buf = "void";
3269         syntax_str = "SUTRS";
3270     }
3271
3272     if (syntax_str)
3273     {
3274         syntax_oid = yaz_string_to_oid_odr(yaz_oid_std(),
3275                                            CLASS_RECSYN, syntax_str,
3276                                            p->odr_out);
3277     }
3278     if (!syntax_oid)
3279         return 0;
3280
3281     if (num_db > 0)
3282         first_db = db[0];
3283
3284     switch(*version)
3285     {
3286     case '1':
3287         package_oid = yaz_oid_extserv_database_update_first_version;
3288         /* old update does not support specialUpdate */
3289         if (!action)
3290             action = "recordInsert";
3291         break;
3292     case '2':
3293         if (!action)
3294             action = "specialUpdate";
3295         package_oid = yaz_oid_extserv_database_update_second_version;
3296         break;
3297     case '3':
3298         if (!action)
3299             action = "specialUpdate";
3300         package_oid = yaz_oid_extserv_database_update;
3301         break;
3302     default:
3303         return 0;
3304     }
3305
3306     if (!strcmp(action, "recordInsert"))
3307         action_no = Z_IUOriginPartToKeep_recordInsert;
3308     else if (!strcmp(action, "recordReplace"))
3309         action_no = Z_IUOriginPartToKeep_recordReplace;
3310     else if (!strcmp(action, "recordDelete"))
3311         action_no = Z_IUOriginPartToKeep_recordDelete;
3312     else if (!strcmp(action, "elementUpdate"))
3313         action_no = Z_IUOriginPartToKeep_elementUpdate;
3314     else if (!strcmp(action, "specialUpdate"))
3315         action_no = Z_IUOriginPartToKeep_specialUpdate;
3316     else
3317         return 0;
3318
3319     apdu = create_es_package(p, package_oid);
3320     if (apdu)
3321     {
3322         Z_IUOriginPartToKeep *toKeep;
3323         Z_IUSuppliedRecords *notToKeep;
3324         Z_External *r = (Z_External *)
3325             odr_malloc(p->odr_out, sizeof(*r));
3326         const char *elementSetName =
3327             ZOOM_options_get(p->options, "elementSetName");
3328
3329         apdu->u.extendedServicesRequest->taskSpecificParameters = r;
3330
3331         r->direct_reference = odr_oiddup(p->odr_out, package_oid);
3332         r->descriptor = 0;
3333         r->which = Z_External_update;
3334         r->indirect_reference = 0;
3335         r->u.update = (Z_IUUpdate *)
3336             odr_malloc(p->odr_out, sizeof(*r->u.update));
3337
3338         r->u.update->which = Z_IUUpdate_esRequest;
3339         r->u.update->u.esRequest = (Z_IUUpdateEsRequest *)
3340             odr_malloc(p->odr_out, sizeof(*r->u.update->u.esRequest));
3341         toKeep = r->u.update->u.esRequest->toKeep =
3342             (Z_IUOriginPartToKeep *)
3343             odr_malloc(p->odr_out, sizeof(*toKeep));
3344
3345         toKeep->databaseName = odr_strdup(p->odr_out, first_db);
3346         toKeep->schema = 0;
3347
3348         toKeep->elementSetName = 0;
3349         if (elementSetName)
3350             toKeep->elementSetName = odr_strdup(p->odr_out, elementSetName);
3351
3352         toKeep->actionQualifier = 0;
3353         toKeep->action = odr_intdup(p->odr_out, action_no);
3354
3355         notToKeep = r->u.update->u.esRequest->notToKeep =
3356             (Z_IUSuppliedRecords *)
3357             odr_malloc(p->odr_out, sizeof(*notToKeep));
3358         notToKeep->num = 1;
3359         notToKeep->elements = (Z_IUSuppliedRecords_elem **)
3360             odr_malloc(p->odr_out, sizeof(*notToKeep->elements));
3361         notToKeep->elements[0] = (Z_IUSuppliedRecords_elem *)
3362             odr_malloc(p->odr_out, sizeof(**notToKeep->elements));
3363         notToKeep->elements[0]->which = Z_IUSuppliedRecords_elem_opaque;
3364         if (recordIdOpaque)
3365         {
3366             notToKeep->elements[0]->u.opaque =
3367                 odr_create_Odr_oct(p->odr_out,
3368                                    (const unsigned char *) recordIdOpaque,
3369                                    strlen(recordIdOpaque));
3370         }
3371         else if (recordIdNumber)
3372         {
3373             notToKeep->elements[0]->which = Z_IUSuppliedRecords_elem_number;
3374
3375             notToKeep->elements[0]->u.number =
3376                 odr_intdup(p->odr_out, atoi(recordIdNumber));
3377         }
3378         else
3379             notToKeep->elements[0]->u.opaque = 0;
3380         notToKeep->elements[0]->supplementalId = 0;
3381         if (correlationInfo_note || correlationInfo_id)
3382         {
3383             Z_IUCorrelationInfo *ci;
3384             ci = notToKeep->elements[0]->correlationInfo =
3385                 odr_malloc(p->odr_out, sizeof(*ci));
3386             ci->note = correlationInfo_note ?
3387                 odr_strdup(p->odr_out, correlationInfo_note) : 0;
3388             ci->id = correlationInfo_id ?
3389                 odr_intdup(p->odr_out, atoi(correlationInfo_id)) : 0;
3390         }
3391         else
3392             notToKeep->elements[0]->correlationInfo = 0;
3393         notToKeep->elements[0]->record =
3394             z_ext_record_oid(p->odr_out, syntax_oid,
3395                              record_buf, strlen(record_buf));
3396     }
3397     if (0 && apdu)
3398     {
3399         ODR print = odr_createmem(ODR_PRINT);
3400
3401         z_APDU(print, &apdu, 0, 0);
3402         odr_destroy(print);
3403     }
3404     return apdu;
3405 }
3406
3407 ZOOM_API(void)
3408     ZOOM_package_send(ZOOM_package p, const char *type)
3409 {
3410     Z_APDU *apdu = 0;
3411     ZOOM_connection c;
3412     if (!p)
3413         return;
3414     c = p->connection;
3415     odr_reset(p->odr_out);
3416     xfree(p->buf_out);
3417     p->buf_out = 0;
3418     if (!strcmp(type, "itemorder"))
3419     {
3420         apdu = create_es_package(p, yaz_oid_extserv_item_order);
3421         if (apdu)
3422         {
3423             Z_External *r = (Z_External *) odr_malloc(p->odr_out, sizeof(*r));
3424
3425             r->direct_reference =
3426                 odr_oiddup(p->odr_out, yaz_oid_extserv_item_order);
3427             r->descriptor = 0;
3428             r->which = Z_External_itemOrder;
3429             r->indirect_reference = 0;
3430             r->u.itemOrder = encode_item_order(p);
3431
3432             apdu->u.extendedServicesRequest->taskSpecificParameters = r;
3433         }
3434     }
3435     else if (!strcmp(type, "create"))  /* create database */
3436     {
3437         apdu = create_admin_package(p, Z_ESAdminOriginPartToKeep_create,
3438                                     0, 0);
3439     }
3440     else if (!strcmp(type, "drop"))  /* drop database */
3441     {
3442         apdu = create_admin_package(p, Z_ESAdminOriginPartToKeep_drop,
3443                                     0, 0);
3444     }
3445     else if (!strcmp(type, "commit"))  /* commit changes */
3446     {
3447         apdu = create_admin_package(p, Z_ESAdminOriginPartToKeep_commit,
3448                                     0, 0);
3449     }
3450     else if (!strcmp(type, "update")) /* update record(s) */
3451     {
3452         apdu = create_update_package(p);
3453     }
3454     else if (!strcmp(type, "xmlupdate"))
3455     {
3456         apdu = create_xmlupdate_package(p);
3457     }
3458     if (apdu)
3459     {
3460         if (encode_APDU(p->connection, apdu, p->odr_out) == 0)
3461         {
3462             char *buf;
3463
3464             ZOOM_task task = ZOOM_connection_add_task(c, ZOOM_TASK_PACKAGE);
3465             task->u.package = p;
3466             buf = odr_getbuf(p->odr_out, &p->len_out, 0);
3467             p->buf_out = (char *) xmalloc(p->len_out);
3468             memcpy(p->buf_out, buf, p->len_out);
3469
3470             (p->refcount)++;
3471             if (!c->async)
3472             {
3473                 while (ZOOM_event(1, &c))
3474                     ;
3475             }
3476         }
3477     }
3478 }
3479
3480 ZOOM_API(ZOOM_package)
3481     ZOOM_connection_package(ZOOM_connection c, ZOOM_options options)
3482 {
3483     ZOOM_package p = (ZOOM_package) xmalloc(sizeof(*p));
3484
3485     p->connection = c;
3486     p->odr_out = odr_createmem(ODR_ENCODE);
3487     p->options = ZOOM_options_create_with_parent2(options, c->options);
3488     p->refcount = 1;
3489     p->buf_out = 0;
3490     p->len_out = 0;
3491     return p;
3492 }
3493
3494 ZOOM_API(void)
3495     ZOOM_package_destroy(ZOOM_package p)
3496 {
3497     if (!p)
3498         return;
3499     (p->refcount)--;
3500     if (p->refcount == 0)
3501     {
3502         odr_destroy(p->odr_out);
3503         xfree(p->buf_out);
3504
3505         ZOOM_options_destroy(p->options);
3506         xfree(p);
3507     }
3508 }
3509
3510 ZOOM_API(const char *)
3511     ZOOM_package_option_get(ZOOM_package p, const char *key)
3512 {
3513     return ZOOM_options_get(p->options, key);
3514 }
3515
3516
3517 ZOOM_API(void)
3518     ZOOM_package_option_set(ZOOM_package p, const char *key,
3519                             const char *val)
3520 {
3521     ZOOM_options_set(p->options, key, val);
3522 }
3523
3524 static int ZOOM_connection_exec_task(ZOOM_connection c)
3525 {
3526     ZOOM_task task = c->tasks;
3527     zoom_ret ret = zoom_complete;
3528
3529     if (!task)
3530         return 0;
3531     yaz_log(log_details, "%p ZOOM_connection_exec_task type=%d run=%d",
3532             c, task->which, task->running);
3533     if (c->error != ZOOM_ERROR_NONE)
3534     {
3535         yaz_log(log_details, "%p ZOOM_connection_exec_task "
3536                 "removing tasks because of error = %d", c, c->error);
3537         ZOOM_connection_remove_tasks(c);
3538         return 0;
3539     }
3540     if (task->running)
3541     {
3542         yaz_log(log_details, "%p ZOOM_connection_exec_task "
3543                 "task already running", c);
3544         return 0;
3545     }
3546     task->running = 1;
3547     ret = zoom_complete;
3548     if (c->cs || task->which == ZOOM_TASK_CONNECT)
3549     {
3550         switch (task->which)
3551         {
3552         case ZOOM_TASK_SEARCH:
3553             if (c->proto == PROTO_HTTP)
3554                 ret = ZOOM_connection_srw_send_search(c);
3555             else
3556                 ret = ZOOM_connection_send_search(c);
3557             break;
3558         case ZOOM_TASK_RETRIEVE:
3559             if (c->proto == PROTO_HTTP)
3560                 ret = ZOOM_connection_srw_send_search(c);
3561             else
3562                 ret = send_present(c);
3563             break;
3564         case ZOOM_TASK_CONNECT:
3565             ret = do_connect(c);
3566             break;
3567         case ZOOM_TASK_SCAN:
3568             if (c->proto == PROTO_HTTP)
3569                 ret = ZOOM_connection_srw_send_scan(c);
3570             else
3571                 ret = ZOOM_connection_send_scan(c);
3572             break;
3573         case ZOOM_TASK_PACKAGE:
3574             ret = send_package(c);
3575             break;
3576         case ZOOM_TASK_SORT:
3577             c->tasks->u.sort.resultset->r_sort_spec =
3578                 c->tasks->u.sort.q->sort_spec;
3579             ret = send_sort(c, c->tasks->u.sort.resultset);
3580             break;
3581         }
3582     }
3583     else
3584     {
3585         yaz_log(log_details, "%p ZOOM_connection_exec_task "
3586                 "remove tasks because no connection exist", c);
3587         ZOOM_connection_remove_tasks(c);
3588     }
3589     if (ret == zoom_complete)
3590     {
3591         yaz_log(log_details, "%p ZOOM_connection_exec_task "
3592                 "task removed (complete)", c);
3593         ZOOM_connection_remove_task(c);
3594         return 0;
3595     }
3596     yaz_log(log_details, "%p ZOOM_connection_exec_task "
3597             "task pending", c);
3598     return 1;
3599 }
3600
3601 static zoom_ret send_sort_present(ZOOM_connection c)
3602 {
3603     zoom_ret r = zoom_complete;
3604
3605     if (c->tasks && c->tasks->which == ZOOM_TASK_SEARCH)
3606         r = send_sort(c, c->tasks->u.search.resultset);
3607     if (r == zoom_complete)
3608         r = send_present(c);
3609     return r;
3610 }
3611
3612 static int es_response(ZOOM_connection c,
3613                        Z_ExtendedServicesResponse *res)
3614 {
3615     if (!c->tasks || c->tasks->which != ZOOM_TASK_PACKAGE)
3616         return 0;
3617     if (res->diagnostics && res->num_diagnostics > 0)
3618         response_diag(c, res->diagnostics[0]);
3619     if (res->taskPackage &&
3620         res->taskPackage->which == Z_External_extendedService)
3621     {
3622         Z_TaskPackage *taskPackage = res->taskPackage->u.extendedService;
3623         Odr_oct *id = taskPackage->targetReference;
3624
3625         if (id)
3626             ZOOM_options_setl(c->tasks->u.package->options,
3627                               "targetReference", (char*) id->buf, id->len);
3628     }
3629     if (res->taskPackage &&
3630         res->taskPackage->which == Z_External_octet)
3631     {
3632         Odr_oct *doc = res->taskPackage->u.octet_aligned;
3633         ZOOM_options_setl(c->tasks->u.package->options,
3634                           "xmlUpdateDoc", (char*) doc->buf, doc->len);
3635     }
3636     return 1;
3637 }
3638
3639 static void interpret_init_diag(ZOOM_connection c,
3640                                 Z_DiagnosticFormat *diag)
3641 {
3642     if (diag->num > 0)
3643     {
3644         Z_DiagnosticFormat_s *ds = diag->elements[0];
3645         if (ds->which == Z_DiagnosticFormat_s_defaultDiagRec)
3646             response_default_diag(c, ds->u.defaultDiagRec);
3647     }
3648 }
3649
3650
3651 static void interpret_otherinformation_field(ZOOM_connection c,
3652                                              Z_OtherInformation *ui)
3653 {
3654     int i;
3655     for (i = 0; i < ui->num_elements; i++)
3656     {
3657         Z_OtherInformationUnit *unit = ui->list[i];
3658         if (unit->which == Z_OtherInfo_externallyDefinedInfo &&
3659             unit->information.externallyDefinedInfo &&
3660             unit->information.externallyDefinedInfo->which ==
3661             Z_External_diag1)
3662         {
3663             interpret_init_diag(c, unit->information.externallyDefinedInfo->u.diag1);
3664         }
3665     }
3666 }
3667
3668
3669 static void set_init_option(const char *name, void *clientData) {
3670     ZOOM_connection c = (ZOOM_connection) clientData;
3671     char buf[80];
3672
3673     sprintf(buf, "init_opt_%.70s", name);
3674     ZOOM_connection_option_set(c, buf, "1");
3675 }
3676
3677
3678 static void recv_apdu(ZOOM_connection c, Z_APDU *apdu)
3679 {
3680     Z_InitResponse *initrs;
3681
3682     ZOOM_connection_set_mask(c, 0);
3683     yaz_log(log_details, "%p recv_apdu apdu->which=%d", c, apdu->which);
3684     switch(apdu->which)
3685     {
3686     case Z_APDU_initResponse:
3687         yaz_log(log_api, "%p recv_apdu: Received Init response", c);
3688         initrs = apdu->u.initResponse;
3689         ZOOM_connection_option_set(c, "serverImplementationId",
3690                                    initrs->implementationId ?
3691                                    initrs->implementationId : "");
3692         ZOOM_connection_option_set(c, "serverImplementationName",
3693                                    initrs->implementationName ?
3694                                    initrs->implementationName : "");
3695         ZOOM_connection_option_set(c, "serverImplementationVersion",
3696                                    initrs->implementationVersion ?
3697                                    initrs->implementationVersion : "");
3698         /* Set the three old options too, for old applications */
3699         ZOOM_connection_option_set(c, "targetImplementationId",
3700                                    initrs->implementationId ?
3701                                    initrs->implementationId : "");
3702         ZOOM_connection_option_set(c, "targetImplementationName",
3703                                    initrs->implementationName ?
3704                                    initrs->implementationName : "");
3705         ZOOM_connection_option_set(c, "targetImplementationVersion",
3706                                    initrs->implementationVersion ?
3707                                    initrs->implementationVersion : "");
3708
3709         /* Make initrs->options available as ZOOM-level options */
3710         yaz_init_opt_decode(initrs->options, set_init_option, (void*) c);
3711
3712         if (!*initrs->result)
3713         {
3714             Z_External *uif = initrs->userInformationField;
3715
3716             set_ZOOM_error(c, ZOOM_ERROR_INIT, 0); /* default error */
3717
3718             if (uif && uif->which == Z_External_userInfo1)
3719                 interpret_otherinformation_field(c, uif->u.userInfo1);
3720         }
3721         else
3722         {
3723             char *cookie =
3724                 yaz_oi_get_string_oid(&apdu->u.initResponse->otherInfo,
3725                                       yaz_oid_userinfo_cookie, 1, 0);
3726             xfree(c->cookie_in);
3727             c->cookie_in = 0;
3728             if (cookie)
3729                 c->cookie_in = xstrdup(cookie);
3730             if (ODR_MASK_GET(initrs->options, Z_Options_namedResultSets) &&
3731                 ODR_MASK_GET(initrs->protocolVersion, Z_ProtocolVersion_3))
3732                 c->support_named_resultsets = 1;
3733             if (c->tasks)
3734             {
3735                 assert(c->tasks->which == ZOOM_TASK_CONNECT);
3736                 ZOOM_connection_remove_task(c);
3737             }
3738             ZOOM_connection_exec_task(c);
3739         }
3740         if (ODR_MASK_GET(initrs->options, Z_Options_negotiationModel))
3741         {
3742             NMEM tmpmem = nmem_create();
3743             Z_CharSetandLanguageNegotiation *p =
3744                 yaz_get_charneg_record(initrs->otherInfo);
3745
3746             if (p)
3747             {
3748                 char *charset = NULL, *lang = NULL;
3749                 int sel;
3750
3751                 yaz_get_response_charneg(tmpmem, p, &charset, &lang, &sel);
3752                 yaz_log(log_details, "%p recv_apdu target accepted: "
3753                         "charset %s, language %s, select %d",
3754                         c,
3755                         charset ? charset : "none", lang ? lang : "none", sel);
3756                 if (charset)
3757                     ZOOM_connection_option_set(c, "negotiation-charset",
3758                                                charset);
3759                 if (lang)
3760                     ZOOM_connection_option_set(c, "negotiation-lang",
3761                                                lang);
3762
3763                 ZOOM_connection_option_set(
3764                     c,  "negotiation-charset-in-effect-for-records",
3765                     (sel != 0) ? "1" : "0");
3766                 nmem_destroy(tmpmem);
3767             }
3768         }
3769         break;
3770     case Z_APDU_searchResponse:
3771         yaz_log(log_api, "%p recv_apdu Search response", c);
3772         handle_search_response(c, apdu->u.searchResponse);
3773         if (send_sort_present(c) == zoom_complete)
3774             ZOOM_connection_remove_task(c);
3775         break;
3776     case Z_APDU_presentResponse:
3777         yaz_log(log_api, "%p recv_apdu Present response", c);
3778         handle_present_response(c, apdu->u.presentResponse);
3779         if (send_present(c) == zoom_complete)
3780             ZOOM_connection_remove_task(c);
3781         break;
3782     case Z_APDU_sortResponse:
3783         yaz_log(log_api, "%p recv_apdu Sort response", c);
3784         sort_response(c, apdu->u.sortResponse);
3785         if (send_present(c) == zoom_complete)
3786             ZOOM_connection_remove_task(c);
3787         break;
3788     case Z_APDU_scanResponse:
3789         yaz_log(log_api, "%p recv_apdu Scan response", c);
3790         scan_response(c, apdu->u.scanResponse);
3791         ZOOM_connection_remove_task(c);
3792         break;
3793     case Z_APDU_extendedServicesResponse:
3794         yaz_log(log_api, "%p recv_apdu Extended Services response", c);
3795         es_response(c, apdu->u.extendedServicesResponse);
3796         ZOOM_connection_remove_task(c);
3797         break;
3798     case Z_APDU_close:
3799         yaz_log(log_api, "%p recv_apdu Close PDU", c);
3800         if (!ZOOM_test_reconnect(c))
3801         {
3802             set_ZOOM_error(c, ZOOM_ERROR_CONNECTION_LOST, c->host_port);
3803             do_close(c);
3804         }
3805         break;
3806     default:
3807         yaz_log(log_api, "%p Received unknown PDU", c);
3808         set_ZOOM_error(c, ZOOM_ERROR_DECODE, 0);
3809         do_close(c);
3810     }
3811 }
3812
3813 #if YAZ_HAVE_XML2
3814 static void handle_srw_response(ZOOM_connection c,
3815                                 Z_SRW_searchRetrieveResponse *res)
3816 {
3817     ZOOM_resultset resultset = 0;
3818     int i;
3819     NMEM nmem;
3820     ZOOM_Event event;
3821     int *start;
3822     const char *syntax, *elementSetName;
3823
3824     if (!c->tasks)
3825         return;
3826
3827     switch(c->tasks->which)
3828     {
3829     case ZOOM_TASK_SEARCH:
3830         resultset = c->tasks->u.search.resultset;
3831         start = &c->tasks->u.search.start;
3832         syntax = c->tasks->u.search.syntax;
3833         elementSetName = c->tasks->u.search.elementSetName;
3834         break;
3835     case ZOOM_TASK_RETRIEVE:
3836         resultset = c->tasks->u.retrieve.resultset;
3837         start = &c->tasks->u.retrieve.start;
3838         syntax = c->tasks->u.retrieve.syntax;
3839         elementSetName = c->tasks->u.retrieve.elementSetName;
3840         break;
3841     default:
3842         return;
3843     }
3844     event = ZOOM_Event_create(ZOOM_EVENT_RECV_SEARCH);
3845     ZOOM_connection_put_event(c, event);
3846
3847     resultset->size = 0;
3848
3849     if (res->resultSetId)
3850         ZOOM_resultset_option_set(resultset, "resultSetId", res->resultSetId);
3851
3852     yaz_log(log_details, "%p handle_srw_response got SRW response OK", c);
3853
3854     if (res->numberOfRecords)
3855         resultset->size = *res->numberOfRecords;
3856
3857     for (i = 0; i<res->num_records; i++)
3858     {
3859         int pos;
3860
3861         Z_NamePlusRecord *npr = (Z_NamePlusRecord *)
3862             odr_malloc(c->odr_in, sizeof(Z_NamePlusRecord));
3863
3864         if (res->records[i].recordPosition &&
3865             *res->records[i].recordPosition > 0)
3866             pos = *res->records[i].recordPosition - 1;
3867         else
3868             pos = *start + i;
3869
3870         npr->databaseName = 0;
3871         npr->which = Z_NamePlusRecord_databaseRecord;
3872         npr->u.databaseRecord = (Z_External *)
3873             odr_malloc(c->odr_in, sizeof(Z_External));
3874         npr->u.databaseRecord->descriptor = 0;
3875         npr->u.databaseRecord->direct_reference =
3876             odr_oiddup(c->odr_in, yaz_oid_recsyn_xml);
3877         npr->u.databaseRecord->which = Z_External_octet;
3878
3879         npr->u.databaseRecord->u.octet_aligned = (Odr_oct *)
3880             odr_malloc(c->odr_in, sizeof(Odr_oct));
3881         npr->u.databaseRecord->u.octet_aligned->buf = (unsigned char*)
3882             res->records[i].recordData_buf;
3883         npr->u.databaseRecord->u.octet_aligned->len =
3884             npr->u.databaseRecord->u.octet_aligned->size =
3885             res->records[i].recordData_len;
3886         record_cache_add(resultset, npr, pos, syntax, elementSetName,
3887                          res->records[i].recordSchema);
3888     }
3889     if (res->num_diagnostics > 0)
3890         set_SRU_error(c, &res->diagnostics[0]);
3891     nmem = odr_extract_mem(c->odr_in);
3892     nmem_transfer(odr_getmem(resultset->odr), nmem);
3893     nmem_destroy(nmem);
3894 }
3895 #endif
3896
3897 #if YAZ_HAVE_XML2
3898 static void handle_srw_scan_response(ZOOM_connection c,
3899                                      Z_SRW_scanResponse *res)
3900 {
3901     NMEM nmem = odr_extract_mem(c->odr_in);
3902     ZOOM_scanset scan;
3903
3904     if (!c->tasks || c->tasks->which != ZOOM_TASK_SCAN)
3905         return;
3906     scan = c->tasks->u.scan.scan;
3907
3908     if (res->num_diagnostics > 0)
3909         set_SRU_error(c, &res->diagnostics[0]);
3910
3911     scan->scan_response = 0;
3912     scan->srw_scan_response = res;
3913     nmem_transfer(odr_getmem(scan->odr), nmem);
3914
3915     ZOOM_options_set_int(scan->options, "number", res->num_terms);
3916     nmem_destroy(nmem);
3917 }
3918 #endif
3919
3920 #if YAZ_HAVE_XML2
3921 static void handle_http(ZOOM_connection c, Z_HTTP_Response *hres)
3922 {
3923     int ret = -1;
3924     const char *addinfo = 0;
3925     const char *connection_head = z_HTTP_header_lookup(hres->headers,
3926                                                        "Connection");
3927     ZOOM_connection_set_mask(c, 0);
3928     yaz_log(log_details, "%p handle_http", c);
3929
3930     if (!yaz_srw_check_content_type(hres))
3931         addinfo = "content-type";
3932     else
3933     {
3934         Z_SOAP *soap_package = 0;
3935         ODR o = c->odr_in;
3936         Z_SOAP_Handler soap_handlers[2] = {
3937             {YAZ_XMLNS_SRU_v1_1, 0, (Z_SOAP_fun) yaz_srw_codec},
3938             {0, 0, 0}
3939         };
3940         ret = z_soap_codec(o, &soap_package,
3941                            &hres->content_buf, &hres->content_len,
3942                            soap_handlers);
3943         if (!ret && soap_package->which == Z_SOAP_generic &&
3944             soap_package->u.generic->no == 0)
3945         {
3946             Z_SRW_PDU *sr = (Z_SRW_PDU*) soap_package->u.generic->p;
3947
3948             ZOOM_options_set(c->options, "sru_version", sr->srw_version);
3949             if (sr->which == Z_SRW_searchRetrieve_response)
3950                 handle_srw_response(c, sr->u.response);
3951             else if (sr->which == Z_SRW_scan_response)
3952                 handle_srw_scan_response(c, sr->u.scan_response);
3953             else
3954                 ret = -1;
3955         }
3956         else if (!ret && (soap_package->which == Z_SOAP_fault
3957                           || soap_package->which == Z_SOAP_error))
3958         {
3959             set_HTTP_error(c, hres->code,
3960                            soap_package->u.fault->fault_code,
3961                            soap_package->u.fault->fault_string);
3962         }
3963         else
3964             ret = -1;
3965     }
3966     if (ret)
3967     {
3968         if (hres->code != 200)
3969             set_HTTP_error(c, hres->code, 0, 0);
3970         else
3971             set_ZOOM_error(c, ZOOM_ERROR_DECODE, addinfo);
3972         do_close(c);
3973     }
3974     ZOOM_connection_remove_task(c);
3975     if (!strcmp(hres->version, "1.0"))
3976     {
3977         /* HTTP 1.0: only if Keep-Alive we stay alive.. */
3978         if (!connection_head || strcmp(connection_head, "Keep-Alive"))
3979             do_close(c);
3980     }
3981     else
3982     {
3983         /* HTTP 1.1: only if no close we stay alive .. */
3984         if (connection_head && !strcmp(connection_head, "close"))
3985             do_close(c);
3986     }
3987 }
3988 #endif
3989
3990 static int do_read(ZOOM_connection c)
3991 {
3992     int r, more;
3993     ZOOM_Event event;
3994
3995     event = ZOOM_Event_create(ZOOM_EVENT_RECV_DATA);
3996     ZOOM_connection_put_event(c, event);
3997
3998     r = cs_get(c->cs, &c->buf_in, &c->len_in);
3999     more = cs_more(c->cs);
4000     yaz_log(log_details, "%p do_read len=%d more=%d", c, r, more);
4001     if (r == 1)
4002         return 0;
4003     if (r <= 0)
4004     {
4005         if (!ZOOM_test_reconnect(c))
4006         {
4007             set_ZOOM_error(c, ZOOM_ERROR_CONNECTION_LOST, c->host_port);
4008             do_close(c);
4009         }
4010     }
4011     else
4012     {
4013         Z_GDU *gdu;
4014         ZOOM_Event event;
4015
4016         odr_reset(c->odr_in);
4017         odr_setbuf(c->odr_in, c->buf_in, r, 0);
4018         event = ZOOM_Event_create(ZOOM_EVENT_RECV_APDU);
4019         ZOOM_connection_put_event(c, event);
4020
4021         if (!z_GDU(c->odr_in, &gdu, 0, 0))
4022         {
4023             int x;
4024             int err = odr_geterrorx(c->odr_in, &x);
4025             char msg[100];
4026             const char *element = odr_getelement(c->odr_in);
4027             yaz_snprintf(msg, sizeof(msg),
4028                     "ODR code %d:%d element=%s offset=%d",
4029                     err, x, element ? element : "<unknown>",
4030                     odr_offset(c->odr_in));
4031             set_ZOOM_error(c, ZOOM_ERROR_DECODE, msg);
4032             if (log_api)
4033             {
4034                 FILE *ber_file = yaz_log_file();
4035                 if (ber_file)
4036                     odr_dumpBER(ber_file, c->buf_in, r);
4037             }
4038             do_close(c);
4039         }
4040         else if (gdu->which == Z_GDU_Z3950)
4041             recv_apdu(c, gdu->u.z3950);
4042         else if (gdu->which == Z_GDU_HTTP_Response)
4043         {
4044 #if YAZ_HAVE_XML2
4045             handle_http(c, gdu->u.HTTP_Response);
4046 #else
4047             set_ZOOM_error(c, ZOOM_ERROR_DECODE, 0);
4048             do_close(c);
4049 #endif
4050         }
4051         c->reconnect_ok = 0;
4052     }
4053     return 1;
4054 }
4055
4056 static zoom_ret do_write_ex(ZOOM_connection c, char *buf_out, int len_out)
4057 {
4058     int r;
4059     ZOOM_Event event;
4060
4061     event = ZOOM_Event_create(ZOOM_EVENT_SEND_DATA);
4062     ZOOM_connection_put_event(c, event);
4063
4064     yaz_log(log_details, "%p do_write_ex len=%d", c, len_out);
4065     if ((r = cs_put(c->cs, buf_out, len_out)) < 0)
4066     {
4067         yaz_log(log_details, "%p do_write_ex write failed", c);
4068         if (ZOOM_test_reconnect(c))
4069         {
4070             return zoom_pending;
4071         }
4072         if (c->state == STATE_CONNECTING)
4073             set_ZOOM_error(c, ZOOM_ERROR_CONNECT, c->host_port);
4074         else
4075             set_ZOOM_error(c, ZOOM_ERROR_CONNECTION_LOST, c->host_port);
4076         do_close(c);
4077         return zoom_complete;
4078     }
4079     else if (r == 1)
4080     {
4081         int mask = ZOOM_SELECT_EXCEPT;
4082         if (c->cs->io_pending & CS_WANT_WRITE)
4083             mask += ZOOM_SELECT_WRITE;
4084         if (c->cs->io_pending & CS_WANT_READ)
4085             mask += ZOOM_SELECT_READ;
4086         ZOOM_connection_set_mask(c, mask);
4087         yaz_log(log_details, "%p do_write_ex write incomplete mask=%d",
4088                 c, c->mask);
4089     }
4090     else
4091     {
4092         ZOOM_connection_set_mask(c, ZOOM_SELECT_READ|ZOOM_SELECT_EXCEPT);
4093         yaz_log(log_details, "%p do_write_ex write complete mask=%d",
4094                 c, c->mask);
4095     }
4096     return zoom_pending;
4097 }
4098
4099 static zoom_ret do_write(ZOOM_connection c)
4100 {
4101     return do_write_ex(c, c->buf_out, c->len_out);
4102 }
4103
4104
4105 ZOOM_API(const char *)
4106     ZOOM_connection_option_get(ZOOM_connection c, const char *key)
4107 {
4108     return ZOOM_options_get(c->options, key);
4109 }
4110
4111 ZOOM_API(const char *)
4112     ZOOM_connection_option_getl(ZOOM_connection c, const char *key, int *lenp)
4113 {
4114     return ZOOM_options_getl(c->options, key, lenp);
4115 }
4116
4117 ZOOM_API(void)
4118     ZOOM_connection_option_set(ZOOM_connection c, const char *key,
4119                                const char *val)
4120 {
4121     ZOOM_options_set(c->options, key, val);
4122 }
4123
4124 ZOOM_API(void)
4125     ZOOM_connection_option_setl(ZOOM_connection c, const char *key,
4126                                 const char *val, int len)
4127 {
4128     ZOOM_options_setl(c->options, key, val, len);
4129 }
4130
4131 ZOOM_API(const char *)
4132     ZOOM_resultset_option_get(ZOOM_resultset r, const char *key)
4133 {
4134     return ZOOM_options_get(r->options, key);
4135 }
4136
4137 ZOOM_API(void)
4138     ZOOM_resultset_option_set(ZOOM_resultset r, const char *key,
4139                               const char *val)
4140 {
4141     ZOOM_options_set(r->options, key, val);
4142 }
4143
4144
4145 ZOOM_API(int)
4146     ZOOM_connection_errcode(ZOOM_connection c)
4147 {
4148     return ZOOM_connection_error(c, 0, 0);
4149 }
4150
4151 ZOOM_API(const char *)
4152     ZOOM_connection_errmsg(ZOOM_connection c)
4153 {
4154     const char *msg;
4155     ZOOM_connection_error(c, &msg, 0);
4156     return msg;
4157 }
4158
4159 ZOOM_API(const char *)
4160     ZOOM_connection_addinfo(ZOOM_connection c)
4161 {
4162     const char *addinfo;
4163     ZOOM_connection_error(c, 0, &addinfo);
4164     return addinfo;
4165 }
4166
4167 ZOOM_API(const char *)
4168     ZOOM_connection_diagset(ZOOM_connection c)
4169 {
4170     const char *diagset;
4171     ZOOM_connection_error_x(c, 0, 0, &diagset);
4172     return diagset;
4173 }
4174
4175 ZOOM_API(const char *)
4176     ZOOM_diag_str(int error)
4177 {
4178     switch (error)
4179     {
4180     case ZOOM_ERROR_NONE:
4181         return "No error";
4182     case ZOOM_ERROR_CONNECT:
4183         return "Connect failed";
4184     case ZOOM_ERROR_MEMORY:
4185         return "Out of memory";
4186     case ZOOM_ERROR_ENCODE:
4187         return "Encoding failed";
4188     case ZOOM_ERROR_DECODE:
4189         return "Decoding failed";
4190     case ZOOM_ERROR_CONNECTION_LOST:
4191         return "Connection lost";
4192     case ZOOM_ERROR_INIT:
4193         return "Init rejected";
4194     case ZOOM_ERROR_INTERNAL:
4195         return "Internal failure";
4196     case ZOOM_ERROR_TIMEOUT:
4197         return "Timeout";
4198     case ZOOM_ERROR_UNSUPPORTED_PROTOCOL:
4199         return "Unsupported protocol";
4200     case ZOOM_ERROR_UNSUPPORTED_QUERY:
4201         return "Unsupported query type";
4202     case ZOOM_ERROR_INVALID_QUERY:
4203         return "Invalid query";
4204     case ZOOM_ERROR_CQL_PARSE:
4205         return "CQL parsing error";
4206     case ZOOM_ERROR_CQL_TRANSFORM:
4207         return "CQL transformation error";
4208     case ZOOM_ERROR_CCL_CONFIG:
4209         return "CCL configuration error";
4210     case ZOOM_ERROR_CCL_PARSE:
4211         return "CCL parsing error";
4212     default:
4213         return diagbib1_str(error);
4214     }
4215 }
4216
4217 ZOOM_API(int)
4218     ZOOM_connection_error_x(ZOOM_connection c, const char **cp,
4219                             const char **addinfo, const char **diagset)
4220 {
4221     int error = c->error;
4222     if (cp)
4223     {
4224         if (!c->diagset || !strcmp(c->diagset, "ZOOM"))
4225             *cp = ZOOM_diag_str(error);
4226         else if (!strcmp(c->diagset, "HTTP"))
4227             *cp = z_HTTP_errmsg(c->error);
4228         else if (!strcmp(c->diagset, "Bib-1"))
4229             *cp = ZOOM_diag_str(error);
4230         else if (!strcmp(c->diagset, "info:srw/diagnostic/1"))
4231             *cp = yaz_diag_srw_str(c->error);
4232         else
4233             *cp = "Unknown error and diagnostic set";
4234     }
4235     if (addinfo)
4236         *addinfo = c->addinfo ? c->addinfo : "";
4237     if (diagset)
4238         *diagset = c->diagset ? c->diagset : "";
4239     return c->error;
4240 }
4241
4242 ZOOM_API(int)
4243     ZOOM_connection_error(ZOOM_connection c, const char **cp,
4244                           const char **addinfo)
4245 {
4246     return ZOOM_connection_error_x(c, cp, addinfo, 0);
4247 }
4248
4249 static void ZOOM_connection_do_io(ZOOM_connection c, int mask)
4250 {
4251     ZOOM_Event event = 0;
4252     int r = cs_look(c->cs);
4253     yaz_log(log_details, "%p ZOOM_connection_do_io mask=%d cs_look=%d",
4254             c, mask, r);
4255
4256     if (r == CS_NONE)
4257     {
4258         event = ZOOM_Event_create(ZOOM_EVENT_CONNECT);
4259         set_ZOOM_error(c, ZOOM_ERROR_CONNECT, c->host_port);
4260         do_close(c);
4261         ZOOM_connection_put_event(c, event);
4262     }
4263     else if (r == CS_CONNECT)
4264     {
4265         int ret = ret = cs_rcvconnect(c->cs);
4266         yaz_log(log_details, "%p ZOOM_connection_do_io "
4267                 "cs_rcvconnect returned %d", c, ret);
4268         if (ret == 1)
4269         {
4270             int mask = ZOOM_SELECT_EXCEPT;
4271             if (c->cs->io_pending & CS_WANT_WRITE)
4272                 mask += ZOOM_SELECT_WRITE;
4273             if (c->cs->io_pending & CS_WANT_READ)
4274                 mask += ZOOM_SELECT_READ;
4275             ZOOM_connection_set_mask(c, mask);
4276             event = ZOOM_Event_create(ZOOM_EVENT_NONE);
4277             ZOOM_connection_put_event(c, event);
4278         }
4279         else if (ret == 0)
4280         {
4281             event = ZOOM_Event_create(ZOOM_EVENT_CONNECT);
4282             ZOOM_connection_put_event(c, event);
4283             get_cert(c);
4284             if (c->proto == PROTO_Z3950)
4285                 ZOOM_connection_send_init(c);
4286             else
4287             {
4288                 /* no init request for SRW .. */
4289                 assert(c->tasks->which == ZOOM_TASK_CONNECT);
4290                 ZOOM_connection_remove_task(c);
4291                 ZOOM_connection_set_mask(c, 0);
4292                 ZOOM_connection_exec_task(c);
4293             }
4294             c->state = STATE_ESTABLISHED;
4295         }
4296         else
4297         {
4298             set_ZOOM_error(c, ZOOM_ERROR_CONNECT, c->host_port);
4299             do_close(c);
4300         }
4301     }
4302     else
4303     {
4304         if (mask & ZOOM_SELECT_EXCEPT)
4305         {
4306             if (!ZOOM_test_reconnect(c))
4307             {
4308                 set_ZOOM_error(c, ZOOM_ERROR_CONNECTION_LOST, c->host_port);
4309                 do_close(c);
4310             }
4311             return;
4312         }
4313         if (mask & ZOOM_SELECT_READ)
4314             do_read(c);
4315         if (c->cs && (mask & ZOOM_SELECT_WRITE))
4316             do_write(c);
4317     }
4318 }
4319
4320 ZOOM_API(int)
4321     ZOOM_connection_last_event(ZOOM_connection cs)
4322 {
4323     if (!cs)
4324         return ZOOM_EVENT_NONE;
4325     return cs->last_event;
4326 }
4327
4328
4329 static void cql2pqf_wrbuf_puts(const char *buf, void *client_data)
4330 {
4331     WRBUF wrbuf = (WRBUF) client_data;
4332     wrbuf_puts(wrbuf, buf);
4333 }
4334
4335 /*
4336  * Returns an xmalloc()d string containing RPN that corresponds to the
4337  * CQL passed in.  On error, sets the Connection object's error state
4338  * and returns a null pointer.
4339  * ### We could cache CQL parser and/or transformer in Connection.
4340  */
4341 static char *cql2pqf(ZOOM_connection c, const char *cql)
4342 {
4343     CQL_parser parser;
4344     int error;
4345     const char *cqlfile;
4346     cql_transform_t trans;
4347     char *result = 0;
4348
4349     parser = cql_parser_create();
4350     if ((error = cql_parser_string(parser, cql)) != 0) {
4351         cql_parser_destroy(parser);
4352         set_ZOOM_error(c, ZOOM_ERROR_CQL_PARSE, cql);
4353         return 0;
4354     }
4355
4356     cqlfile = ZOOM_connection_option_get(c, "cqlfile");
4357     if (cqlfile == 0)
4358     {
4359         set_ZOOM_error(c, ZOOM_ERROR_CQL_TRANSFORM, "no CQL transform file");
4360     }
4361     else if ((trans = cql_transform_open_fname(cqlfile)) == 0)
4362     {
4363         char buf[512];
4364         sprintf(buf, "can't open CQL transform file '%.200s': %.200s",
4365                 cqlfile, strerror(errno));
4366         set_ZOOM_error(c, ZOOM_ERROR_CQL_TRANSFORM, buf);
4367     }
4368     else
4369     {
4370         WRBUF wrbuf_result = wrbuf_alloc();
4371         error = cql_transform(trans, cql_parser_result(parser),
4372                               cql2pqf_wrbuf_puts, wrbuf_result);
4373         if (error != 0) {
4374             char buf[512];
4375             const char *addinfo;
4376             error = cql_transform_error(trans, &addinfo);
4377             sprintf(buf, "%.200s (addinfo=%.200s)",
4378                     cql_strerror(error), addinfo);
4379             set_ZOOM_error(c, ZOOM_ERROR_CQL_TRANSFORM, buf);
4380         }
4381         else
4382         {
4383             result = xstrdup(wrbuf_cstr(wrbuf_result));
4384         }
4385         cql_transform_close(trans);
4386         wrbuf_destroy(wrbuf_result);
4387     }
4388     cql_parser_destroy(parser);
4389     return result;
4390 }
4391
4392 ZOOM_API(int) ZOOM_connection_fire_event_timeout(ZOOM_connection c)
4393 {
4394     if (c->mask)
4395     {
4396         ZOOM_Event event = ZOOM_Event_create(ZOOM_EVENT_TIMEOUT);
4397         /* timeout and this connection was waiting */
4398         set_ZOOM_error(c, ZOOM_ERROR_TIMEOUT, 0);
4399         do_close(c);
4400         ZOOM_connection_put_event(c, event);
4401     }
4402     return 0;
4403 }
4404
4405 ZOOM_API(int)
4406     ZOOM_connection_process(ZOOM_connection c)
4407 {
4408     ZOOM_Event event;
4409     if (!c)
4410         return 0;
4411
4412     event = ZOOM_connection_get_event(c);
4413     if (event)
4414     {
4415         ZOOM_Event_destroy(event);
4416         return 1;
4417     }
4418     ZOOM_connection_exec_task(c);
4419     event = ZOOM_connection_get_event(c);
4420     if (event)
4421     {
4422         ZOOM_Event_destroy(event);
4423         return 1;
4424     }
4425     return 0;
4426 }
4427
4428 ZOOM_API(int)
4429     ZOOM_event_nonblock(int no, ZOOM_connection *cs)
4430 {
4431     int i;
4432
4433     yaz_log(log_details, "ZOOM_process_event(no=%d,cs=%p)", no, cs);
4434
4435     for (i = 0; i<no; i++)
4436     {
4437         ZOOM_connection c = cs[i];
4438
4439         if (c && ZOOM_connection_process(c))
4440             return i+1;
4441     }
4442     return 0;
4443 }
4444
4445 ZOOM_API(int) ZOOM_connection_fire_event_socket(ZOOM_connection c, int mask)
4446 {
4447     if (c->mask && mask)
4448         ZOOM_connection_do_io(c, mask);
4449     return 0;
4450 }
4451
4452 ZOOM_API(int) ZOOM_connection_get_socket(ZOOM_connection c)
4453 {
4454     if (c->cs)
4455         return cs_fileno(c->cs);
4456     return -1;
4457 }
4458
4459 ZOOM_API(int) ZOOM_connection_set_mask(ZOOM_connection c, int mask)
4460 {
4461     c->mask = mask;
4462     if (!c->cs)
4463         return -1;
4464     return 0;
4465 }
4466
4467 ZOOM_API(int) ZOOM_connection_get_mask(ZOOM_connection c)
4468 {
4469     if (c->cs)
4470         return c->mask;
4471     return 0;
4472 }
4473
4474 ZOOM_API(int) ZOOM_connection_get_timeout(ZOOM_connection c)
4475 {
4476     return ZOOM_options_get_int(c->options, "timeout", 30);
4477 }
4478
4479 /*
4480  * Local variables:
4481  * c-basic-offset: 4
4482  * indent-tabs-mode: nil
4483  * End:
4484  * vim: shiftwidth=4 tabstop=8 expandtab
4485  */
4486