src/pazpar2.c

   1 /* $Id: pazpar2.c,v 1.31 2007-01-15 05:40:24 quinn Exp $ */
   2
   3 #include <stdlib.h>
   4 #include <stdio.h>
   5 #include <string.h>
   6 #include <sys/time.h>
   7 #include <unistd.h>
   8 #include <sys/socket.h>
   9 #include <netdb.h>
  10 #include <signal.h>
  11 #include <ctype.h>
  12 #include <assert.h>
  13
  14 #include <yaz/marcdisp.h>
  15 #include <yaz/comstack.h>
  16 #include <yaz/tcpip.h>
  17 #include <yaz/proto.h>
  18 #include <yaz/readconf.h>
  19 #include <yaz/pquery.h>
  20 #include <yaz/yaz-util.h>
  21 #include <yaz/nmem.h>
  22
  23 #if HAVE_CONFIG_H
  24 #include "cconfig.h"
  25 #endif
  26
  27 #define USE_TIMING 0
  28 #if USE_TIMING
  29 #include <yaz/timing.h>
  30 #endif
  31
  32 #include <netinet/in.h>
  33
  34 #include "pazpar2.h"
  35 #include "eventl.h"
  36 #include "http.h"
  37 #include "termlists.h"
  38 #include "reclists.h"
  39 #include "relevance.h"
  40 #include "config.h"
  41
  42 #define MAX_CHUNK 15
  43
  44 static void client_fatal(struct client *cl);
  45 static void connection_destroy(struct connection *co);
  46 static int client_prep_connection(struct client *cl);
  47 static void ingest_records(struct client *cl, Z_Records *r);
  48 static struct conf_retrievalprofile *database_retrieval_profile(struct database *db);
  49 void session_alert_watch(struct session *s, int what);
  50
  51 IOCHAN channel_list = 0;  // Master list of connections we're handling events to
  52
  53 static struct connection *connection_freelist = 0;
  54 static struct client *client_freelist = 0;
  55
  56 static struct host *hosts = 0;  // The hosts we know about
  57 static struct database *databases = 0; // The databases we know about
  58
  59 static char *client_states[] = {
  60     "Client_Connecting",
  61     "Client_Connected",
  62     "Client_Idle",
  63     "Client_Initializing",
  64     "Client_Searching",
  65     "Client_Presenting",
  66     "Client_Error",
  67     "Client_Failed",
  68     "Client_Disconnected",
  69     "Client_Stopped"
  70 };
  71
  72 // Note: Some things in this structure will eventually move to configuration
  73 struct parameters global_parameters =
  74 {
  75     "",
  76     "",
  77     0,
  78     0,
  79     30,
  80     "81",
  81     "Index Data PazPar2 (MasterKey)",
  82     VERSION,
  83     600, // 10 minutes
  84     60,
  85     100,
  86     MAX_CHUNK,
  87     0,
  88     0,
  89     0,
  90     0
  91 };
  92
  93 static int send_apdu(struct client *c, Z_APDU *a)
  94 {
  95     struct connection *co = c->connection;
  96     char *buf;
  97     int len, r;
  98
  99     if (!z_APDU(global_parameters.odr_out, &a, 0, 0))
 100     {
 101         odr_perror(global_parameters.odr_out, "Encoding APDU");
 102         abort();
 103     }
 104     buf = odr_getbuf(global_parameters.odr_out, &len, 0);
 105     r = cs_put(co->link, buf, len);
 106     if (r < 0)
 107     {
 108         yaz_log(YLOG_WARN, "cs_put: %s", cs_errmsg(cs_errno(co->link)));
 109         return -1;
 110     }
 111     else if (r == 1)
 112     {
 113         fprintf(stderr, "cs_put incomplete (ParaZ does not handle that)\n");
 114         exit(1);
 115     }
 116     odr_reset(global_parameters.odr_out); /* release the APDU structure  */
 117     co->state = Conn_Waiting;
 118     return 0;
 119 }
 120
 121
 122 static void send_init(IOCHAN i)
 123 {
 124     struct connection *co = iochan_getdata(i);
 125     struct client *cl = co->client;
 126     Z_APDU *a = zget_APDU(global_parameters.odr_out, Z_APDU_initRequest);
 127
 128     a->u.initRequest->implementationId = global_parameters.implementationId;
 129     a->u.initRequest->implementationName = global_parameters.implementationName;
 130     a->u.initRequest->implementationVersion =
 131         global_parameters.implementationVersion;
 132     ODR_MASK_SET(a->u.initRequest->options, Z_Options_search);
 133     ODR_MASK_SET(a->u.initRequest->options, Z_Options_present);
 134     ODR_MASK_SET(a->u.initRequest->options, Z_Options_namedResultSets);
 135
 136     ODR_MASK_SET(a->u.initRequest->protocolVersion, Z_ProtocolVersion_1);
 137     ODR_MASK_SET(a->u.initRequest->protocolVersion, Z_ProtocolVersion_2);
 138     ODR_MASK_SET(a->u.initRequest->protocolVersion, Z_ProtocolVersion_3);
 139     if (send_apdu(cl, a) >= 0)
 140     {
 141         iochan_setflags(i, EVENT_INPUT);
 142         cl->state = Client_Initializing;
 143     }
 144     else
 145         cl->state = Client_Error;
 146     odr_reset(global_parameters.odr_out);
 147 }
 148
 149 static void send_search(IOCHAN i)
 150 {
 151     struct connection *co = iochan_getdata(i);
 152     struct client *cl = co->client;
 153     struct session *se = cl->session;
 154     struct database *db = cl->database;
 155     Z_APDU *a = zget_APDU(global_parameters.odr_out, Z_APDU_searchRequest);
 156     int ndb, cerror, cpos;
 157     char **databaselist;
 158     Z_Query *zquery;
 159     struct ccl_rpn_node *cn;
 160     int ssub = 0, lslb = 100000, mspn = 10;
 161
 162     yaz_log(YLOG_DEBUG, "Sending search");
 163
 164     cn = ccl_find_str(global_parameters.ccl_filter, se->query, &cerror, &cpos);
 165     if (!cn)
 166         return;
 167     a->u.searchRequest->query = zquery = odr_malloc(global_parameters.odr_out,
 168             sizeof(Z_Query));
 169     zquery->which = Z_Query_type_1;
 170     zquery->u.type_1 = ccl_rpn_query(global_parameters.odr_out, cn);
 171     ccl_rpn_delete(cn);
 172
 173     for (ndb = 0; db->databases[ndb]; ndb++)
 174         ;
 175     databaselist = odr_malloc(global_parameters.odr_out, sizeof(char*) * ndb);
 176     for (ndb = 0; db->databases[ndb]; ndb++)
 177         databaselist[ndb] = db->databases[ndb];
 178
 179     a->u.presentRequest->preferredRecordSyntax =
 180             yaz_oidval_to_z3950oid(global_parameters.odr_out,
 181             CLASS_RECSYN, VAL_USMARC);
 182     a->u.searchRequest->smallSetUpperBound = &ssub;
 183     a->u.searchRequest->largeSetLowerBound = &lslb;
 184     a->u.searchRequest->mediumSetPresentNumber = &mspn;
 185     a->u.searchRequest->resultSetName = "Default";
 186     a->u.searchRequest->databaseNames = databaselist;
 187     a->u.searchRequest->num_databaseNames = ndb;
 188
 189     if (send_apdu(cl, a) >= 0)
 190     {
 191         iochan_setflags(i, EVENT_INPUT);
 192         cl->state = Client_Searching;
 193         cl->requestid = se->requestid;
 194     }
 195     else
 196         cl->state = Client_Error;
 197
 198     odr_reset(global_parameters.odr_out);
 199 }
 200
 201 static void send_present(IOCHAN i)
 202 {
 203     struct connection *co = iochan_getdata(i);
 204     struct client *cl = co->client;
 205     Z_APDU *a = zget_APDU(global_parameters.odr_out, Z_APDU_presentRequest);
 206     int toget;
 207     int start = cl->records + 1;
 208
 209     toget = global_parameters.chunk;
 210     if (toget > global_parameters.toget - cl->records)
 211         toget = global_parameters.toget - cl->records;
 212     if (toget > cl->hits - cl->records)
 213         toget = cl->hits - cl->records;
 214
 215     yaz_log(YLOG_DEBUG, "Trying to present %d records\n", toget);
 216
 217     a->u.presentRequest->resultSetStartPoint = &start;
 218     a->u.presentRequest->numberOfRecordsRequested = &toget;
 219
 220     a->u.presentRequest->resultSetId = "Default";
 221
 222     a->u.presentRequest->preferredRecordSyntax =
 223             yaz_oidval_to_z3950oid(global_parameters.odr_out,
 224             CLASS_RECSYN, VAL_USMARC);
 225
 226     if (send_apdu(cl, a) >= 0)
 227     {
 228         iochan_setflags(i, EVENT_INPUT);
 229         cl->state = Client_Presenting;
 230     }
 231     else
 232         cl->state = Client_Error;
 233     odr_reset(global_parameters.odr_out);
 234 }
 235
 236 static void do_initResponse(IOCHAN i, Z_APDU *a)
 237 {
 238     struct connection *co = iochan_getdata(i);
 239     struct client *cl = co->client;
 240     Z_InitResponse *r = a->u.initResponse;
 241
 242     yaz_log(YLOG_DEBUG, "Received init response");
 243
 244     if (*r->result)
 245     {
 246         cl->state = Client_Idle;
 247     }
 248     else
 249         cl->state = Client_Failed; // FIXME need to do something to the connection
 250 }
 251
 252 static void do_searchResponse(IOCHAN i, Z_APDU *a)
 253 {
 254     struct connection *co = iochan_getdata(i);
 255     struct client *cl = co->client;
 256     struct session *se = cl->session;
 257     Z_SearchResponse *r = a->u.searchResponse;
 258
 259     yaz_log(YLOG_DEBUG, "Searchresponse (status=%d)", *r->searchStatus);
 260
 261     if (*r->searchStatus)
 262     {
 263         cl->hits = *r->resultCount;
 264         se->total_hits += cl->hits;
 265         if (r->presentStatus && !*r->presentStatus && r->records)
 266         {
 267             yaz_log(YLOG_DEBUG, "Records in search response");
 268             cl->records += *r->numberOfRecordsReturned;
 269             ingest_records(cl, r->records);
 270         }
 271         cl->state = Client_Idle;
 272     }
 273     else
 274     {          /*"FAILED"*/
 275         cl->hits = 0;
 276         cl->state = Client_Error;
 277         if (r->records) {
 278             Z_Records *recs = r->records;
 279             if (recs->which == Z_Records_NSD)
 280             {
 281                 yaz_log(YLOG_WARN, "Non-surrogate diagnostic");
 282                 cl->diagnostic = *recs->u.nonSurrogateDiagnostic->condition;
 283                 cl->state = Client_Error;
 284             }
 285         }
 286     }
 287 }
 288
 289 char *normalize_mergekey(char *buf, int skiparticle)
 290 {
 291     char *p = buf, *pout = buf;
 292
 293     if (skiparticle)
 294     {
 295         char firstword[64];
 296         char articles[] = "the den der die des an a "; // must end in space
 297
 298         while (*p && !isalnum(*p))
 299             p++;
 300         pout = firstword;
 301         while (*p && *p != ' ' && pout - firstword < 62)
 302             *(pout++) = tolower(*(p++));
 303         *(pout++) = ' ';
 304         *(pout++) = '\0';
 305         if (!strstr(articles, firstword))
 306             p = buf;
 307         pout = buf;
 308     }
 309
 310     while (*p)
 311     {
 312         while (*p && !isalnum(*p))
 313             p++;
 314         while (isalnum(*p))
 315             *(pout++) = tolower(*(p++));
 316         if (*p)
 317             *(pout++) = ' ';
 318         while (*p && !isalnum(*p))
 319             p++;
 320     }
 321     if (buf != pout)
 322         *pout = '\0';
 323
 324     return buf;
 325 }
 326
 327
 328 #ifdef GAGA
 329 // FIXME needs to be generalized. Should flexibly generate X lists per search
 330 static void extract_subject(struct session *s, const char *rec)
 331 {
 332     const char *field, *subfield;
 333
 334     while ((field = find_field(rec, "650")))
 335     {
 336         rec = field;
 337         if ((subfield = find_subfield(field, 'a')))
 338         {
 339             char *e, *ef;
 340             char buf[1024];
 341             int len;
 342
 343             ef = index(subfield, '\n');
 344             if (!ef)
 345                 return;
 346             if ((e = index(subfield, '\t')) && e < ef)
 347                 ef = e;
 348             while (ef > subfield && !isalpha(*(ef - 1)) && *(ef - 1) != ')')
 349                 ef--;
 350             len = ef - subfield;
 351             assert(len < 1023);
 352             memcpy(buf, subfield, len);
 353             buf[len] = '\0';
 354 #ifdef FIXME
 355             if (*buf)
 356                 termlist_insert(s->termlist, buf);
 357 #endif
 358         }
 359     }
 360 }
 361 #endif
 362
 363 static void add_facet(struct session *s, const char *type, const char *value)
 364 {
 365     int i;
 366
 367     for (i = 0; i < s->num_termlists; i++)
 368         if (!strcmp(s->termlists[i].name, type))
 369             break;
 370     if (i == s->num_termlists)
 371     {
 372         if (i == SESSION_MAX_TERMLISTS)
 373         {
 374             yaz_log(YLOG_FATAL, "Too many termlists");
 375             exit(1);
 376         }
 377         s->termlists[i].name = nmem_strdup(s->nmem, type);
 378         s->termlists[i].termlist = termlist_create(s->nmem, s->expected_maxrecs, 15);
 379         s->num_termlists = i + 1;
 380     }
 381     termlist_insert(s->termlists[i].termlist, value);
 382 }
 383
 384 int yaz_marc_write_xml();
 385
 386 static xmlDoc *normalize_record(struct client *cl, Z_External *rec)
 387 {
 388     struct conf_retrievalprofile *rprofile = cl->database->rprofile;
 389     struct conf_retrievalmap *m;
 390     xmlNode *res;
 391     xmlDoc *rdoc;
 392
 393     // First normalize to XML
 394     if (rprofile->native_syntax == Nativesyn_iso2709)
 395     {
 396         char *buf;
 397         int len;
 398         if (rec->which != Z_External_octet)
 399         {
 400             yaz_log(YLOG_WARN, "Unexpected external branch, probably BER");
 401             return 0;
 402         }
 403         buf = (char*) rec->u.octet_aligned->buf;
 404         len = rec->u.octet_aligned->len;
 405         if (yaz_marc_read_iso2709(rprofile->yaz_marc, buf, len) < 0)
 406         {
 407             yaz_log(YLOG_WARN, "Failed to decode MARC");
 408             return 0;
 409         }
 410         if (yaz_marc_write_xml(rprofile->yaz_marc, &res,
 411                     "http://www.loc.gov/MARC21/slim", 0, 0) < 0)
 412         {
 413             yaz_log(YLOG_WARN, "Failed to encode as XML");
 414             return 0;
 415         }
 416         rdoc = xmlNewDoc("1.0");
 417         xmlDocSetRootElement(rdoc, res);
 418     }
 419     else
 420     {
 421         yaz_log(YLOG_FATAL, "Unknown native_syntax in normalize_record");
 422         exit(1);
 423     }
 424     for (m = rprofile->maplist; m; m = m->next)
 425     {
 426         xmlDoc *new;
 427         if (m->type != Map_xslt)
 428         {
 429             yaz_log(YLOG_WARN, "Unknown map type");
 430             return 0;
 431         }
 432         if (!(new = xsltApplyStylesheet(m->stylesheet, rdoc, 0)))
 433         {
 434             yaz_log(YLOG_WARN, "XSLT transformation failed");
 435             return 0;
 436         }
 437         xmlFreeDoc(rdoc);
 438         rdoc = new;
 439     }
 440     if (global_parameters.dump_records)
 441     {
 442         fprintf(stderr, "Record:\n----------------\n");
 443 #if LIBXML_VERSION >= 20600
 444         xmlDocFormatDump(stderr, rdoc, 1);
 445 #else
 446         xmlDocDump(stderr, rdoc);
 447 #endif
 448     }
 449     return rdoc;
 450 }
 451
 452 // Extract what appears to be years from buf, storing highest and
 453 // lowest values.
 454 static int extract_years(const char *buf, int *first, int *last)
 455 {
 456     *first = -1;
 457     *last = -1;
 458     while (*buf)
 459     {
 460         const char *e;
 461         int len;
 462
 463         while (*buf && !isdigit(*buf))
 464             buf++;
 465         len = 0;
 466         for (e = buf; *e && isdigit(*e); e++)
 467             len++;
 468         if (len == 4)
 469         {
 470             int value = atoi(buf);
 471             if (*first < 0 || value < *first)
 472                 *first = value;
 473             if (*last < 0 || value > *last)
 474                 *last = value;
 475         }
 476         buf = e;
 477     }
 478     return *first;
 479 }
 480
 481 static struct record *ingest_record(struct client *cl, Z_External *rec)
 482 {
 483     xmlDoc *xdoc = normalize_record(cl, rec);
 484     xmlNode *root, *n;
 485     struct record *res;
 486     struct record_cluster *cluster;
 487     struct session *se = cl->session;
 488     xmlChar *mergekey, *mergekey_norm;
 489     xmlChar *type;
 490     xmlChar *value;
 491     struct conf_service *service = global_parameters.server->service;
 492
 493     if (!xdoc)
 494         return 0;
 495
 496     root = xmlDocGetRootElement(xdoc);
 497     if (!(mergekey = xmlGetProp(root, "mergekey")))
 498     {
 499         yaz_log(YLOG_WARN, "No mergekey found in record");
 500         xmlFreeDoc(xdoc);
 501         return 0;
 502     }
 503
 504     res = nmem_malloc(se->nmem, sizeof(struct record));
 505     res->next = 0;
 506     res->metadata = nmem_malloc(se->nmem,
 507             sizeof(struct record_metadata*) * service->num_metadata);
 508     memset(res->metadata, 0, sizeof(struct record_metadata*) * service->num_metadata);
 509
 510     mergekey_norm = nmem_strdup(se->nmem, (char*) mergekey);
 511     xmlFree(mergekey);
 512     normalize_mergekey(mergekey_norm, 0);
 513
 514     cluster = reclist_insert(se->reclist, res, mergekey_norm, &se->total_merged);
 515     if (!cluster)
 516     {
 517         /* no room for record */
 518         xmlFreeDoc(xdoc);
 519         return 0;
 520     }
 521     relevance_newrec(se->relevance, cluster);
 522
 523     type = value = 0;
 524     for (n = root->children; n; n = n->next)
 525     {
 526         if (type)
 527             xmlFree(type);
 528         if (value)
 529             xmlFree(value);
 530         type = value = 0;
 531
 532         if (n->type != XML_ELEMENT_NODE)
 533             continue;
 534         if (!strcmp(n->name, "metadata"))
 535         {
 536             struct conf_metadata *md = 0;
 537             struct conf_sortkey *sk = 0;
 538             struct record_metadata **wheretoput, *newm;
 539             int imeta;
 540             int first, last;
 541
 542             type = xmlGetProp(n, "type");
 543             value = xmlNodeListGetString(xdoc, n->children, 0);
 544             // First, find out what field we're looking at
 545             for (imeta = 0; imeta < service->num_metadata; imeta++)
 546                 if (!strcmp(type, service->metadata[imeta].name))
 547                 {
 548                     md = &service->metadata[imeta];
 549                     if (md->sortkey_offset >= 0)
 550                         sk = &service->sortkeys[md->sortkey_offset];
 551                     break;
 552                 }
 553             if (!md)
 554             {
 555                 yaz_log(YLOG_WARN, "Ignoring unknown metadata element: %s", type);
 556                 continue;
 557             }
 558
 559             // Find out where we are putting it
 560             if (md->merge == Metadata_merge_no)
 561                 wheretoput = &res->metadata[imeta];
 562             else
 563                 wheretoput = &cluster->metadata[imeta];
 564
 565             // Put it there
 566             newm = nmem_malloc(se->nmem, sizeof(struct record_metadata));
 567             newm->next = 0;
 568             if (md->type == Metadata_type_generic)
 569             {
 570                 newm->data.text = nmem_strdup(se->nmem, value);
 571             }
 572             else if (md->type == Metadata_type_year)
 573             {
 574                 if (extract_years(value, &first, &last) < 0)
 575                     continue;
 576             }
 577             else
 578             {
 579                 yaz_log(YLOG_WARN, "Unknown type in metadata element %s", type);
 580                 continue;
 581             }
 582             if (md->type == Metadata_type_year && md->merge != Metadata_merge_range)
 583             {
 584                 yaz_log(YLOG_WARN, "Only range merging supported for years");
 585                 continue;
 586             }
 587             if (md->merge == Metadata_merge_unique)
 588             {
 589                 struct record_metadata *mnode;
 590                 for (mnode = *wheretoput; mnode; mnode = mnode->next)
 591                     if (!strcmp(mnode->data.text, mnode->data.text))
 592                         break;
 593                 if (!mnode)
 594                 {
 595                     newm->next = *wheretoput;
 596                     *wheretoput = newm;
 597                 }
 598             }
 599             else if (md->merge == Metadata_merge_longest)
 600             {
 601                 if (!*wheretoput ||
 602                         strlen(newm->data.text) > strlen((*wheretoput)->data.text))
 603                 {
 604                     *wheretoput = newm;
 605                     if (sk)
 606                     {
 607                         char *s = nmem_strdup(se->nmem, newm->data.text);
 608                         if (!cluster->sortkeys[md->sortkey_offset])
 609                             cluster->sortkeys[md->sortkey_offset] =
 610                                 nmem_malloc(se->nmem, sizeof(union data_types));
 611                         normalize_mergekey(s,
 612                                 (sk->type == Metadata_sortkey_skiparticle));
 613                         cluster->sortkeys[md->sortkey_offset]->text = s;
 614                     }
 615                 }
 616             }
 617             else if (md->merge == Metadata_merge_all || md->merge == Metadata_merge_no)
 618             {
 619                 newm->next = *wheretoput;
 620                 *wheretoput = newm;
 621             }
 622             else if (md->merge == Metadata_merge_range)
 623             {
 624                 assert(md->type == Metadata_type_year);
 625                 if (!*wheretoput)
 626                 {
 627                     *wheretoput = newm;
 628                     (*wheretoput)->data.number.min = first;
 629                     (*wheretoput)->data.number.max = last;
 630                     if (sk)
 631                         cluster->sortkeys[md->sortkey_offset] = &newm->data;
 632                 }
 633                 else
 634                 {
 635                     if (first < (*wheretoput)->data.number.min)
 636                         (*wheretoput)->data.number.min = first;
 637                     if (last > (*wheretoput)->data.number.max)
 638                         (*wheretoput)->data.number.max = last;
 639                     if (sk)
 640                     {
 641                         union data_types *sdata = cluster->sortkeys[md->sortkey_offset];
 642                         sdata->number.min = first;
 643                         sdata->number.max = last;
 644                     }
 645                 }
 646 #ifdef GAGA
 647                 if (sk)
 648                 {
 649                     union data_types *sdata = cluster->sortkeys[md->sortkey_offset];
 650                     yaz_log(YLOG_LOG, "SK range: %d-%d", sdata->number.min, sdata->number.max);
 651                 }
 652 #endif
 653             }
 654             else
 655                 yaz_log(YLOG_WARN, "Don't know how to merge on element name %s", md->name);
 656
 657             if (md->rank)
 658                 relevance_countwords(se->relevance, cluster, value, md->rank);
 659             if (md->termlist)
 660                 add_facet(se, type, value);
 661             xmlFree(type);
 662             xmlFree(value);
 663             type = value = 0;
 664         }
 665         else
 666             yaz_log(YLOG_WARN, "Unexpected element %s in internal record", n->name);
 667     }
 668
 669     xmlFreeDoc(xdoc);
 670
 671     relevance_donerecord(se->relevance, cluster);
 672     se->total_records++;
 673
 674     return res;
 675 }
 676
 677 static void ingest_records(struct client *cl, Z_Records *r)
 678 {
 679 #if USE_TIMING
 680     yaz_timing_t t = yaz_timing_create();
 681 #endif
 682     struct record *rec;
 683     struct session *s = cl->session;
 684     Z_NamePlusRecordList *rlist;
 685     int i;
 686
 687     if (r->which != Z_Records_DBOSD)
 688         return;
 689     rlist = r->u.databaseOrSurDiagnostics;
 690     for (i = 0; i < rlist->num_records; i++)
 691     {
 692         Z_NamePlusRecord *npr = rlist->records[i];
 693
 694         if (npr->which != Z_NamePlusRecord_databaseRecord)
 695         {
 696             yaz_log(YLOG_WARN, "Unexpected record type, probably diagnostic");
 697             continue;
 698         }
 699
 700         rec = ingest_record(cl, npr->u.databaseRecord);
 701         if (!rec)
 702             continue;
 703     }
 704     if (s->watchlist[SESSION_WATCH_RECORDS].fun && rlist->num_records)
 705         session_alert_watch(s, SESSION_WATCH_RECORDS);
 706
 707 #if USE_TIMING
 708     yaz_timing_stop(t);
 709     yaz_log(YLOG_LOG, "ingest_records %6.5f %3.2f %3.2f",
 710             yaz_timing_get_real(t), yaz_timing_get_user(t),
 711             yaz_timing_get_sys(t));
 712     yaz_timing_destroy(&t);
 713 #endif
 714 }
 715
 716 static void do_presentResponse(IOCHAN i, Z_APDU *a)
 717 {
 718     struct connection *co = iochan_getdata(i);
 719     struct client *cl = co->client;
 720     Z_PresentResponse *r = a->u.presentResponse;
 721
 722     if (r->records) {
 723         Z_Records *recs = r->records;
 724         if (recs->which == Z_Records_NSD)
 725         {
 726             yaz_log(YLOG_WARN, "Non-surrogate diagnostic");
 727             cl->diagnostic = *recs->u.nonSurrogateDiagnostic->condition;
 728             cl->state = Client_Error;
 729         }
 730     }
 731
 732     if (!*r->presentStatus && cl->state != Client_Error)
 733     {
 734         yaz_log(YLOG_DEBUG, "Good Present response");
 735         cl->records += *r->numberOfRecordsReturned;
 736         ingest_records(cl, r->records);
 737         cl->state = Client_Idle;
 738     }
 739     else if (*r->presentStatus)
 740     {
 741         yaz_log(YLOG_WARN, "Bad Present response");
 742         cl->state = Client_Error;
 743     }
 744 }
 745
 746 static void handler(IOCHAN i, int event)
 747 {
 748     struct connection *co = iochan_getdata(i);
 749     struct client *cl = co->client;
 750     struct session *se = 0;
 751
 752     if (cl)
 753         se = cl->session;
 754     else
 755     {
 756         yaz_log(YLOG_WARN, "Destroying orphan connection");
 757         connection_destroy(co);
 758         return;
 759     }
 760
 761     if (co->state == Conn_Connecting && event & EVENT_OUTPUT)
 762     {
 763         int errcode;
 764         socklen_t errlen = sizeof(errcode);
 765
 766         if (getsockopt(cs_fileno(co->link), SOL_SOCKET, SO_ERROR, &errcode,
 767             &errlen) < 0 || errcode != 0)
 768         {
 769             client_fatal(cl);
 770             return;
 771         }
 772         else
 773         {
 774             yaz_log(YLOG_DEBUG, "Connect OK");
 775             co->state = Conn_Open;
 776             if (cl)
 777                 cl->state = Client_Connected;
 778         }
 779     }
 780
 781     else if (event & EVENT_INPUT)
 782     {
 783         int len = cs_get(co->link, &co->ibuf, &co->ibufsize);
 784
 785         if (len < 0)
 786         {
 787             yaz_log(YLOG_WARN|YLOG_ERRNO, "Error reading from Z server");
 788             connection_destroy(co);
 789             return;
 790         }
 791         else if (len == 0)
 792         {
 793             yaz_log(YLOG_WARN, "EOF reading from Z server");
 794             connection_destroy(co);
 795             return;
 796         }
 797         else if (len > 1) // We discard input if we have no connection
 798         {
 799             co->state = Conn_Open;
 800
 801             if (cl && (cl->requestid == se->requestid || cl->state == Client_Initializing))
 802             {
 803                 Z_APDU *a;
 804
 805                 odr_reset(global_parameters.odr_in);
 806                 odr_setbuf(global_parameters.odr_in, co->ibuf, len, 0);
 807                 if (!z_APDU(global_parameters.odr_in, &a, 0, 0))
 808                 {
 809                     client_fatal(cl);
 810                     return;
 811                 }
 812                 switch (a->which)
 813                 {
 814                     case Z_APDU_initResponse:
 815                         do_initResponse(i, a);
 816                         break;
 817                     case Z_APDU_searchResponse:
 818                         do_searchResponse(i, a);
 819                         break;
 820                     case Z_APDU_presentResponse:
 821                         do_presentResponse(i, a);
 822                         break;
 823                     default:
 824                         yaz_log(YLOG_WARN, "Unexpected result from server");
 825                         client_fatal(cl);
 826                         return;
 827                 }
 828                 // We aren't expecting staggered output from target
 829                 // if (cs_more(t->link))
 830                 //    iochan_setevent(i, EVENT_INPUT);
 831             }
 832             else  // we throw away response and go to idle mode
 833             {
 834                 yaz_log(YLOG_DEBUG, "Ignoring result of expired operation");
 835                 cl->state = Client_Idle;
 836             }
 837         }
 838         /* if len==1 we do nothing but wait for more input */
 839     }
 840
 841     if (cl->state == Client_Connected) {
 842         send_init(i);
 843     }
 844
 845     if (cl->state == Client_Idle)
 846     {
 847         if (cl->requestid != se->requestid && *se->query) {
 848             send_search(i);
 849         }
 850         else if (cl->hits > 0 && cl->records < global_parameters.toget &&
 851             cl->records < cl->hits) {
 852             send_present(i);
 853         }
 854     }
 855 }
 856
 857 // Disassociate connection from client
 858 static void connection_release(struct connection *co)
 859 {
 860     struct client *cl = co->client;
 861
 862     yaz_log(YLOG_DEBUG, "Connection release %s", co->host->hostport);
 863     if (!cl)
 864         return;
 865     cl->connection = 0;
 866     co->client = 0;
 867 }
 868
 869 // Close connection and recycle structure
 870 static void connection_destroy(struct connection *co)
 871 {
 872     struct host *h = co->host;
 873     cs_close(co->link);
 874     iochan_destroy(co->iochan);
 875
 876     yaz_log(YLOG_DEBUG, "Connection destroy %s", co->host->hostport);
 877     if (h->connections == co)
 878         h->connections = co->next;
 879     else
 880     {
 881         struct connection *pco;
 882         for (pco = h->connections; pco && pco->next != co; pco = pco->next)
 883             ;
 884         if (pco)
 885             pco->next = co->next;
 886         else
 887             abort();
 888     }
 889     if (co->client)
 890     {
 891         if (co->client->state != Client_Idle)
 892             co->client->state = Client_Disconnected;
 893         co->client->connection = 0;
 894     }
 895     co->next = connection_freelist;
 896     connection_freelist = co;
 897 }
 898
 899 // Creates a new connection for client, associated with the host of
 900 // client's database
 901 static struct connection *connection_create(struct client *cl)
 902 {
 903     struct connection *new;
 904     COMSTACK link;
 905     int res;
 906     void *addr;
 907
 908     yaz_log(YLOG_DEBUG, "Connection create %s", cl->database->url);
 909     if (!(link = cs_create(tcpip_type, 0, PROTO_Z3950)))
 910     {
 911         yaz_log(YLOG_FATAL|YLOG_ERRNO, "Failed to create comstack");
 912         exit(1);
 913     }
 914
 915     if (!(addr = cs_straddr(link, cl->database->host->ipport)))
 916     {
 917         yaz_log(YLOG_WARN|YLOG_ERRNO, "Lookup of IP address %s failed?",
 918             cl->database->host->ipport);
 919         return 0;
 920     }
 921
 922     res = cs_connect(link, addr);
 923     if (res < 0)
 924     {
 925         yaz_log(YLOG_WARN|YLOG_ERRNO, "cs_connect %s", cl->database->url);
 926         return 0;
 927     }
 928
 929     if ((new = connection_freelist))
 930         connection_freelist = new->next;
 931     else
 932     {
 933         new = xmalloc(sizeof (struct connection));
 934         new->ibuf = 0;
 935         new->ibufsize = 0;
 936     }
 937     new->state = Conn_Connecting;
 938     new->host = cl->database->host;
 939     new->next = new->host->connections;
 940     new->host->connections = new;
 941     new->client = cl;
 942     cl->connection = new;
 943     new->link = link;
 944
 945     new->iochan = iochan_create(cs_fileno(link), handler, 0);
 946     iochan_setdata(new->iochan, new);
 947     new->iochan->next = channel_list;
 948     channel_list = new->iochan;
 949     return new;
 950 }
 951
 952 // Close connection and set state to error
 953 static void client_fatal(struct client *cl)
 954 {
 955     yaz_log(YLOG_WARN, "Fatal error from %s", cl->database->url);
 956     connection_destroy(cl->connection);
 957     cl->state = Client_Error;
 958 }
 959
 960 // Ensure that client has a connection associated
 961 static int client_prep_connection(struct client *cl)
 962 {
 963     struct connection *co;
 964     struct session *se = cl->session;
 965     struct host *host = cl->database->host;
 966
 967     co = cl->connection;
 968
 969     yaz_log(YLOG_DEBUG, "Client prep %s", cl->database->url);
 970
 971     if (!co)
 972     {
 973         // See if someone else has an idle connection
 974         // We should look at timestamps here to select the longest-idle connection
 975         for (co = host->connections; co; co = co->next)
 976             if (co->state == Conn_Open && (!co->client || co->client->session != se))
 977                 break;
 978         if (co)
 979         {
 980             connection_release(co);
 981             cl->connection = co;
 982             co->client = cl;
 983         }
 984         else
 985             co = connection_create(cl);
 986     }
 987     if (co)
 988     {
 989         if (co->state == Conn_Connecting)
 990         {
 991             cl->state = Client_Connecting;
 992             iochan_setflag(co->iochan, EVENT_OUTPUT);
 993         }
 994         else if (co->state == Conn_Open)
 995         {
 996             if (cl->state == Client_Error || cl->state == Client_Disconnected)
 997                 cl->state = Client_Idle;
 998             iochan_setflag(co->iochan, EVENT_OUTPUT);
 999         }
1000         return 1;
1001     }
1002     else
1003         return 0;
1004 }
1005
1006 // This function will most likely vanish when a proper target profile mechanism is
1007 // introduced.
1008 void load_simpletargets(const char *fn)
1009 {
1010     FILE *f = fopen(fn, "r");
1011     char line[256];
1012
1013     if (!f)
1014     {
1015         yaz_log(YLOG_WARN|YLOG_ERRNO, "open %s", fn);
1016         exit(1);
1017     }
1018
1019     while (fgets(line, 255, f))
1020     {
1021         char *url, *db;
1022         struct host *host;
1023         struct database *database;
1024
1025         if (strncmp(line, "target ", 7))
1026             continue;
1027         url = line + 7;
1028         url[strlen(url) - 1] = '\0';
1029         yaz_log(YLOG_DEBUG, "Target: %s", url);
1030         if ((db = strchr(url, '/')))
1031             *(db++) = '\0';
1032         else
1033             db = "Default";
1034
1035         for (host = hosts; host; host = host->next)
1036             if (!strcmp(url, host->hostport))
1037                 break;
1038         if (!host)
1039         {
1040             struct addrinfo *addrinfo, hints;
1041             char *port;
1042             char ipport[128];
1043             unsigned char addrbuf[4];
1044             int res;
1045
1046             host = xmalloc(sizeof(struct host));
1047             host->hostport = xstrdup(url);
1048             host->connections = 0;
1049
1050             if ((port = strchr(url, ':')))
1051                 *(port++) = '\0';
1052             else
1053                 port = "210";
1054
1055             hints.ai_flags = 0;
1056             hints.ai_family = PF_INET;
1057             hints.ai_socktype = SOCK_STREAM;
1058             hints.ai_protocol = IPPROTO_TCP;
1059             hints.ai_addrlen = 0;
1060             hints.ai_addr = 0;
1061             hints.ai_canonname = 0;
1062             hints.ai_next = 0;
1063             // This is not robust code. It assumes that getaddrinfo returns AF_INET
1064             // address.
1065             if ((res = getaddrinfo(url, port, &hints, &addrinfo)))
1066             {
1067                 yaz_log(YLOG_WARN, "Failed to resolve %s: %s", url, gai_strerror(res));
1068                 xfree(host->hostport);
1069                 xfree(host);
1070                 continue;
1071             }
1072             assert(addrinfo->ai_family == PF_INET);
1073             memcpy(addrbuf, &((struct sockaddr_in*)addrinfo->ai_addr)->sin_addr.s_addr, 4);
1074             sprintf(ipport, "%u.%u.%u.%u:%s",
1075                     addrbuf[0], addrbuf[1], addrbuf[2], addrbuf[3], port);
1076             host->ipport = xstrdup(ipport);
1077             freeaddrinfo(addrinfo);
1078             host->next = hosts;
1079             hosts = host;
1080         }
1081         database = xmalloc(sizeof(struct database));
1082         database->host = host;
1083         database->url = xmalloc(strlen(url) + strlen(db) + 2);
1084         strcpy(database->url, url);
1085         strcat(database->url, "/");
1086         strcat(database->url, db);
1087
1088         database->databases = xmalloc(2 * sizeof(char *));
1089         database->databases[0] = xstrdup(db);
1090         database->databases[1] = 0;
1091         database->errors = 0;
1092         database->qprofile = 0;
1093         database->rprofile = database_retrieval_profile(database);
1094         database->next = databases;
1095         databases = database;
1096
1097     }
1098     fclose(f);
1099 }
1100
1101 static void pull_terms(NMEM nmem, struct ccl_rpn_node *n, char **termlist, int *num)
1102 {
1103     switch (n->kind)
1104     {
1105         case CCL_RPN_AND:
1106         case CCL_RPN_OR:
1107         case CCL_RPN_NOT:
1108         case CCL_RPN_PROX:
1109             pull_terms(nmem, n->u.p[0], termlist, num);
1110             pull_terms(nmem, n->u.p[1], termlist, num);
1111             break;
1112         case CCL_RPN_TERM:
1113             termlist[(*num)++] = nmem_strdup(nmem, n->u.t.term);
1114             break;
1115         default: // NOOP
1116             break;
1117     }
1118 }
1119
1120 // Extract terms from query into null-terminated termlist
1121 static int extract_terms(NMEM nmem, char *query, char **termlist)
1122 {
1123     int error, pos;
1124     struct ccl_rpn_node *n;
1125     int num = 0;
1126
1127     n = ccl_find_str(global_parameters.ccl_filter, query, &error, &pos);
1128     if (!n)
1129         return -1;
1130     pull_terms(nmem, n, termlist, &num);
1131     termlist[num] = 0;
1132     ccl_rpn_delete(n);
1133     return 0;
1134 }
1135
1136 static struct client *client_create(void)
1137 {
1138     struct client *r;
1139     if (client_freelist)
1140     {
1141         r = client_freelist;
1142         client_freelist = client_freelist->next;
1143     }
1144     else
1145         r = xmalloc(sizeof(struct client));
1146     r->database = 0;
1147     r->connection = 0;
1148     r->session = 0;
1149     r->hits = 0;
1150     r->records = 0;
1151     r->setno = 0;
1152     r->requestid = -1;
1153     r->diagnostic = 0;
1154     r->state = Client_Disconnected;
1155     r->next = 0;
1156     return r;
1157 }
1158
1159 void client_destroy(struct client *c)
1160 {
1161     struct session *se = c->session;
1162     if (c == se->clients)
1163         se->clients = c->next;
1164     else
1165     {
1166         struct client *cc;
1167         for (cc = se->clients; cc && cc->next != c; cc = cc->next)
1168             ;
1169         if (cc)
1170             cc->next = c->next;
1171     }
1172     if (c->connection)
1173         connection_release(c->connection);
1174     c->next = client_freelist;
1175     client_freelist = c;
1176 }
1177
1178 void session_set_watch(struct session *s, int what, session_watchfun fun, void *data)
1179 {
1180     s->watchlist[what].fun = fun;
1181     s->watchlist[what].data = data;
1182 }
1183
1184 void session_alert_watch(struct session *s, int what)
1185 {
1186     if (!s->watchlist[what].fun)
1187         return;
1188     (*s->watchlist[what].fun)(s->watchlist[what].data);
1189     s->watchlist[what].fun = 0;
1190     s->watchlist[what].data = 0;
1191 }
1192
1193 // This needs to be extended with selection criteria
1194 static struct conf_retrievalprofile *database_retrieval_profile(struct database *db)
1195 {
1196     if (!config)
1197     {
1198         yaz_log(YLOG_FATAL, "Must load configuration (-f)");
1199         exit(1);
1200     }
1201     if (!config->retrievalprofiles)
1202     {
1203         yaz_log(YLOG_FATAL, "No retrieval profiles defined");
1204     }
1205     return config->retrievalprofiles;
1206 }
1207
1208 // This should be extended with parameters to control selection criteria
1209 // Associates a set of clients with a session;
1210 int select_targets(struct session *se)
1211 {
1212     struct database *db;
1213     int c = 0;
1214
1215     while (se->clients)
1216         client_destroy(se->clients);
1217     for (db = databases; db; db = db->next)
1218     {
1219         struct client *cl = client_create();
1220         cl->database = db;
1221         cl->session = se;
1222         cl->next = se->clients;
1223         se->clients = cl;
1224         c++;
1225     }
1226     return c;
1227 }
1228
1229 int session_active_clients(struct session *s)
1230 {
1231     struct client *c;
1232     int res = 0;
1233
1234     for (c = s->clients; c; c = c->next)
1235         if (c->connection && (c->state == Client_Connecting ||
1236                     c->state == Client_Initializing ||
1237                     c->state == Client_Searching ||
1238                     c->state == Client_Presenting))
1239             res++;
1240
1241     return res;
1242 }
1243
1244 char *search(struct session *se, char *query)
1245 {
1246     int live_channels = 0;
1247     struct client *cl;
1248
1249     yaz_log(YLOG_DEBUG, "Search");
1250
1251     strcpy(se->query, query);
1252     se->requestid++;
1253     nmem_reset(se->nmem);
1254     for (cl = se->clients; cl; cl = cl->next)
1255     {
1256         cl->hits = -1;
1257         cl->records = 0;
1258         cl->diagnostic = 0;
1259
1260         if (client_prep_connection(cl))
1261             live_channels++;
1262     }
1263     if (live_channels)
1264     {
1265         char *p[512];
1266         int maxrecs = live_channels * global_parameters.toget;
1267         se->num_termlists = 0;
1268         se->reclist = reclist_create(se->nmem, maxrecs);
1269         extract_terms(se->nmem, query, p);
1270         se->relevance = relevance_create(se->nmem, (const char **) p, maxrecs);
1271         se->total_records = se->total_hits = se->total_merged = 0;
1272         se->expected_maxrecs = maxrecs;
1273     }
1274     else
1275         return "NOTARGETS";
1276
1277     return 0;
1278 }
1279
1280 void destroy_session(struct session *s)
1281 {
1282     yaz_log(YLOG_LOG, "Destroying session");
1283     while (s->clients)
1284         client_destroy(s->clients);
1285     nmem_destroy(s->nmem);
1286     wrbuf_free(s->wrbuf, 1);
1287 }
1288
1289 struct session *new_session()
1290 {
1291     int i;
1292     struct session *session = xmalloc(sizeof(*session));
1293
1294     yaz_log(YLOG_DEBUG, "New pazpar2 session");
1295
1296     session->total_hits = 0;
1297     session->total_records = 0;
1298     session->num_termlists = 0;
1299     session->reclist = 0;
1300     session->requestid = -1;
1301     session->clients = 0;
1302     session->expected_maxrecs = 0;
1303     session->query[0] = '\0';
1304     session->nmem = nmem_create();
1305     session->wrbuf = wrbuf_alloc();
1306     for (i = 0; i <= SESSION_WATCH_MAX; i++)
1307     {
1308         session->watchlist[i].data = 0;
1309         session->watchlist[i].fun = 0;
1310     }
1311
1312     select_targets(session);
1313
1314     return session;
1315 }
1316
1317 struct hitsbytarget *hitsbytarget(struct session *se, int *count)
1318 {
1319     static struct hitsbytarget res[1000]; // FIXME MM
1320     struct client *cl;
1321
1322     *count = 0;
1323     for (cl = se->clients; cl; cl = cl->next)
1324     {
1325         strcpy(res[*count].id, cl->database->host->hostport);
1326         res[*count].hits = cl->hits;
1327         res[*count].records = cl->records;
1328         res[*count].diagnostic = cl->diagnostic;
1329         res[*count].state = client_states[cl->state];
1330         res[*count].connected  = cl->connection ? 1 : 0;
1331         (*count)++;
1332     }
1333
1334     return res;
1335 }
1336
1337 struct termlist_score **termlist(struct session *s, const char *name, int *num)
1338 {
1339     int i;
1340
1341     for (i = 0; i < s->num_termlists; i++)
1342         if (!strcmp(s->termlists[i].name, name))
1343             return termlist_highscore(s->termlists[i].termlist, num);
1344     return 0;
1345 }
1346
1347 #ifdef MISSING_HEADERS
1348 void report_nmem_stats(void)
1349 {
1350     size_t in_use, is_free;
1351
1352     nmem_get_memory_in_use(&in_use);
1353     nmem_get_memory_free(&is_free);
1354
1355     yaz_log(YLOG_LOG, "nmem stat: use=%ld free=%ld",
1356             (long) in_use, (long) is_free);
1357 }
1358 #endif
1359
1360 struct record_cluster *show_single(struct session *s, int id)
1361 {
1362     struct record_cluster *r;
1363
1364     reclist_rewind(s->reclist);
1365     while ((r = reclist_read_record(s->reclist)))
1366         if (r->recid == id)
1367             return r;
1368     return 0;
1369 }
1370
1371 struct record_cluster **show(struct session *s, struct reclist_sortparms *sp, int start,
1372         int *num, int *total, int *sumhits, NMEM nmem_show)
1373 {
1374     struct record_cluster **recs = nmem_malloc(nmem_show, *num
1375                                        * sizeof(struct record_cluster *));
1376     struct reclist_sortparms *spp;
1377     int i;
1378 #if USE_TIMING
1379     yaz_timing_t t = yaz_timing_create();
1380 #endif
1381
1382     for (spp = sp; spp; spp = spp->next)
1383         if (spp->type == Metadata_sortkey_relevance)
1384         {
1385             relevance_prepare_read(s->relevance, s->reclist);
1386             break;
1387         }
1388     reclist_sort(s->reclist, sp);
1389
1390     *total = s->reclist->num_records;
1391     *sumhits = s->total_hits;
1392
1393     for (i = 0; i < start; i++)
1394         if (!reclist_read_record(s->reclist))
1395         {
1396             *num = 0;
1397             recs = 0;
1398             break;
1399         }
1400
1401     for (i = 0; i < *num; i++)
1402     {
1403         struct record_cluster *r = reclist_read_record(s->reclist);
1404         if (!r)
1405         {
1406             *num = i;
1407             break;
1408         }
1409         recs[i] = r;
1410     }
1411 #if USE_TIMING
1412     yaz_timing_stop(t);
1413     yaz_log(YLOG_LOG, "show %6.5f %3.2f %3.2f",
1414             yaz_timing_get_real(t), yaz_timing_get_user(t),
1415             yaz_timing_get_sys(t));
1416     yaz_timing_destroy(&t);
1417 #endif
1418     return recs;
1419 }
1420
1421 void statistics(struct session *se, struct statistics *stat)
1422 {
1423     struct client *cl;
1424     int count = 0;
1425
1426     memset(stat, 0, sizeof(*stat));
1427     for (cl = se->clients; cl; cl = cl->next)
1428     {
1429         if (!cl->connection)
1430             stat->num_no_connection++;
1431         switch (cl->state)
1432         {
1433             case Client_Connecting: stat->num_connecting++; break;
1434             case Client_Initializing: stat->num_initializing++; break;
1435             case Client_Searching: stat->num_searching++; break;
1436             case Client_Presenting: stat->num_presenting++; break;
1437             case Client_Idle: stat->num_idle++; break;
1438             case Client_Failed: stat->num_failed++; break;
1439             case Client_Error: stat->num_error++; break;
1440             default: break;
1441         }
1442         count++;
1443     }
1444     stat->num_hits = se->total_hits;
1445     stat->num_records = se->total_records;
1446
1447     stat->num_clients = count;
1448 }
1449
1450 static CCL_bibset load_cclfile(const char *fn)
1451 {
1452     CCL_bibset res = ccl_qual_mk();
1453     if (ccl_qual_fname(res, fn) < 0)
1454     {
1455         yaz_log(YLOG_FATAL|YLOG_ERRNO, "%s", fn);
1456         exit(1);
1457     }
1458     return res;
1459 }
1460
1461 static void start_http_listener(void)
1462 {
1463     char hp[128] = "";
1464     struct conf_server *ser = global_parameters.server;
1465
1466     if (*global_parameters.listener_override)
1467         strcpy(hp, global_parameters.listener_override);
1468     else
1469     {
1470         strcpy(hp, ser->host ? ser->host : "");
1471         if (ser->port)
1472         {
1473             if (*hp)
1474                 strcat(hp, ":");
1475             sprintf(hp + strlen(hp), "%d", ser->port);
1476         }
1477     }
1478     http_init(hp);
1479 }
1480
1481 static void start_proxy(void)
1482 {
1483     char hp[128] = "";
1484     struct conf_server *ser = global_parameters.server;
1485
1486     if (*global_parameters.proxy_override)
1487         strcpy(hp, global_parameters.proxy_override);
1488     else if (ser->proxy_host || ser->proxy_port)
1489     {
1490         strcpy(hp, ser->proxy_host ? ser->proxy_host : "");
1491         if (ser->proxy_port)
1492         {
1493             if (*hp)
1494                 strcat(hp, ":");
1495             sprintf(hp + strlen(hp), "%d", ser->proxy_port);
1496         }
1497     }
1498     else
1499         return;
1500
1501     http_set_proxyaddr(hp);
1502 }
1503
1504 int main(int argc, char **argv)
1505 {
1506     int ret;
1507     char *arg;
1508
1509     if (signal(SIGPIPE, SIG_IGN) == SIG_ERR)
1510         yaz_log(YLOG_WARN|YLOG_ERRNO, "signal");
1511
1512     yaz_log_init(YLOG_DEFAULT_LEVEL, "pazpar2", 0);
1513
1514     while ((ret = options("f:x:h:p:C:s:d", argv, argc, &arg)) != -2)
1515     {
1516         switch (ret) {
1517             case 'f':
1518                 if (!read_config(arg))
1519                     exit(1);
1520                 break;
1521             case 'h':
1522                 strcpy(global_parameters.listener_override, arg);
1523                 break;
1524             case 'C':
1525                 global_parameters.ccl_filter = load_cclfile(arg);
1526                 break;
1527             case 'p':
1528                 strcpy(global_parameters.proxy_override, arg);
1529                 break;
1530             case 's':
1531                 load_simpletargets(arg);
1532                 break;
1533             case 'd':
1534                 global_parameters.dump_records = 1;
1535                 break;
1536             default:
1537                 fprintf(stderr, "Usage: pazpar2\n"
1538                         "    -f configfile\n"
1539                         "    -h [host:]port          (REST protocol listener)\n"
1540                         "    -C cclconfig\n"
1541                         "    -s simpletargetfile\n"
1542                         "    -p hostname[:portno]    (HTTP proxy)\n");
1543                 exit(1);
1544         }
1545     }
1546
1547     if (!config)
1548     {
1549         yaz_log(YLOG_FATAL, "Load config with -f");
1550         exit(1);
1551     }
1552     global_parameters.server = config->servers;
1553
1554     start_http_listener();
1555     start_proxy();
1556     global_parameters.ccl_filter = load_cclfile("../etc/default.bib");
1557     global_parameters.yaz_marc = yaz_marc_create();
1558     yaz_marc_subfield_str(global_parameters.yaz_marc, "\t");
1559     global_parameters.odr_in = odr_createmem(ODR_DECODE);
1560     global_parameters.odr_out = odr_createmem(ODR_ENCODE);
1561
1562     event_loop(&channel_list);
1563
1564     return 0;
1565 }
1566
1567 /*
1568  * Local variables:
1569  * c-basic-offset: 4
1570  * indent-tabs-mode: nil
1571  * End:
1572  * vim: shiftwidth=4 tabstop=8 expandtab
1573  */