src/pazpar2_config.c

   1 /* This file is part of Pazpar2.
   2    Copyright (C) 2006-2009 Index Data
   3
   4 Pazpar2 is free software; you can redistribute it and/or modify it under
   5 the terms of the GNU General Public License as published by the Free
   6 Software Foundation; either version 2, or (at your option) any later
   7 version.
   8
   9 Pazpar2 is distributed in the hope that it will be useful, but WITHOUT ANY
  10 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12 for more details.
  13
  14 You should have received a copy of the GNU General Public License
  15 along with this program; if not, write to the Free Software
  16 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  17
  18 */
  19
  20 #if HAVE_CONFIG_H
  21 #include <config.h>
  22 #endif
  23
  24 #include <string.h>
  25
  26 #include <libxml/parser.h>
  27 #include <libxml/tree.h>
  28 #include <libxslt/xslt.h>
  29 #include <libxslt/transform.h>
  30 #include <libxslt/xsltutils.h>
  31
  32 #include <yaz/yaz-util.h>
  33 #include <yaz/nmem.h>
  34 #include <yaz/snprintf.h>
  35 #include <yaz/tpath.h>
  36
  37 #include "pazpar2_config.h"
  38 #include "settings.h"
  39 #include "eventl.h"
  40 #include "http.h"
  41
  42 struct conf_config
  43 {
  44     NMEM nmem; /* for conf_config and servers memory */
  45     struct conf_server *servers;
  46     WRBUF confdir;
  47 };
  48
  49
  50 static char *parse_settings(struct conf_config *config,
  51                             NMEM nmem, xmlNode *node);
  52
  53 static struct conf_targetprofiles *parse_targetprofiles(NMEM nmem,
  54                                                         xmlNode *node);
  55
  56 static
  57 struct conf_metadata * conf_metadata_assign(NMEM nmem,
  58                                             struct conf_metadata * metadata,
  59                                             const char *name,
  60                                             enum conf_metadata_type type,
  61                                             enum conf_metadata_merge merge,
  62                                             enum conf_setting_type setting,
  63                                             int brief,
  64                                             int termlist,
  65                                             int rank,
  66                                             int sortkey_offset,
  67                                             enum conf_metadata_mergekey mt)
  68 {
  69     if (!nmem || !metadata || !name)
  70         return 0;
  71
  72     metadata->name = nmem_strdup(nmem, name);
  73
  74     metadata->type = type;
  75
  76     // enforcing that type_year is always range_merge
  77     if (metadata->type == Metadata_type_year)
  78         metadata->merge = Metadata_merge_range;
  79     else
  80         metadata->merge = merge;
  81
  82     metadata->setting = setting;
  83     metadata->brief = brief;
  84     metadata->termlist = termlist;
  85     metadata->rank = rank;
  86     metadata->sortkey_offset = sortkey_offset;
  87     metadata->mergekey = mt;
  88     return metadata;
  89 }
  90
  91
  92 static
  93 struct conf_sortkey * conf_sortkey_assign(NMEM nmem,
  94                                           struct conf_sortkey * sortkey,
  95                                           const char *name,
  96                                           enum conf_sortkey_type type)
  97 {
  98     if (!nmem || !sortkey || !name)
  99         return 0;
 100
 101     sortkey->name = nmem_strdup(nmem, name);
 102     sortkey->type = type;
 103
 104     return sortkey;
 105 }
 106
 107
 108 struct conf_service * conf_service_create(struct conf_config *config,
 109                                           int num_metadata, int num_sortkeys,
 110                                           const char *service_id)
 111 {
 112     struct conf_service * service = 0;
 113     NMEM nmem = nmem_create();
 114
 115     //assert(nmem);
 116
 117     service = nmem_malloc(nmem, sizeof(struct conf_service));
 118     service->nmem = nmem;
 119     service->next = 0;
 120     service->settings = 0;
 121     service->databases = 0;
 122     service->targetprofiles = 0;
 123     service->config = config;
 124
 125     service->id = service_id ? nmem_strdup(nmem, service_id) : 0;
 126     service->num_metadata = num_metadata;
 127     service->metadata = 0;
 128     if (service->num_metadata)
 129       service->metadata
 130           = nmem_malloc(nmem,
 131                         sizeof(struct conf_metadata) * service->num_metadata);
 132     service->num_sortkeys = num_sortkeys;
 133     service->sortkeys = 0;
 134     if (service->num_sortkeys)
 135         service->sortkeys
 136             = nmem_malloc(nmem,
 137                           sizeof(struct conf_sortkey) * service->num_sortkeys);
 138     service->dictionary = 0;
 139     return service;
 140 }
 141
 142 struct conf_metadata* conf_service_add_metadata(struct conf_service *service,
 143                                                 int field_id,
 144                                                 const char *name,
 145                                                 enum conf_metadata_type type,
 146                                                 enum conf_metadata_merge merge,
 147                                                 enum conf_setting_type setting,
 148                                                 int brief,
 149                                                 int termlist,
 150                                                 int rank,
 151                                                 int sortkey_offset,
 152                                                 enum conf_metadata_mergekey mt)
 153 {
 154     struct conf_metadata * md = 0;
 155
 156     if (!service || !service->metadata || !service->num_metadata
 157         || field_id < 0  || !(field_id < service->num_metadata))
 158         return 0;
 159
 160     //md = &((service->metadata)[field_id]);
 161     md = service->metadata + field_id;
 162     md = conf_metadata_assign(service->nmem, md, name, type, merge, setting,
 163                               brief, termlist, rank, sortkey_offset,
 164                               mt);
 165     return md;
 166 }
 167
 168
 169 struct conf_sortkey * conf_service_add_sortkey(struct conf_service *service,
 170                                                int field_id,
 171                                                const char *name,
 172                                                enum conf_sortkey_type type)
 173 {
 174     struct conf_sortkey * sk = 0;
 175
 176     if (!service || !service->sortkeys || !service->num_sortkeys
 177         || field_id < 0  || !(field_id < service->num_sortkeys))
 178         return 0;
 179
 180     //sk = &((service->sortkeys)[field_id]);
 181     sk = service->sortkeys + field_id;
 182     sk = conf_sortkey_assign(service->nmem, sk, name, type);
 183
 184     return sk;
 185 }
 186
 187
 188 int conf_service_metadata_field_id(struct conf_service *service,
 189                                    const char * name)
 190 {
 191     int i = 0;
 192
 193     if (!service || !service->metadata || !service->num_metadata)
 194         return -1;
 195
 196     for(i = 0; i < service->num_metadata; i++) {
 197         if (!strcmp(name, (service->metadata[i]).name))
 198             return i;
 199     }
 200
 201     return -1;
 202 }
 203
 204
 205 int conf_service_sortkey_field_id(struct conf_service *service,
 206                                   const char * name)
 207 {
 208     int i = 0;
 209
 210     if (!service || !service->sortkeys || !service->num_sortkeys)
 211         return -1;
 212
 213     for(i = 0; i < service->num_sortkeys; i++) {
 214         if (!strcmp(name, (service->sortkeys[i]).name))
 215             return i;
 216     }
 217
 218     return -1;
 219 }
 220
 221
 222
 223 /* Code to parse configuration file */
 224 /* ==================================================== */
 225
 226 static struct conf_service *parse_service(struct conf_config *config,
 227                                           xmlNode *node, const char *service_id)
 228 {
 229     xmlNode *n;
 230     int md_node = 0;
 231     int sk_node = 0;
 232
 233     struct conf_service *service = 0;
 234     int num_metadata = 0;
 235     int num_sortkeys = 0;
 236
 237     // count num_metadata and num_sortkeys
 238     for (n = node->children; n; n = n->next)
 239         if (n->type == XML_ELEMENT_NODE && !strcmp((const char *)
 240                                                    n->name, "metadata"))
 241         {
 242             xmlChar *sortkey = xmlGetProp(n, (xmlChar *) "sortkey");
 243             num_metadata++;
 244             if (sortkey && strcmp((const char *) sortkey, "no"))
 245                 num_sortkeys++;
 246             xmlFree(sortkey);
 247         }
 248
 249     service = conf_service_create(config,
 250                                   num_metadata, num_sortkeys, service_id);
 251
 252     for (n = node->children; n; n = n->next)
 253     {
 254         if (n->type != XML_ELEMENT_NODE)
 255             continue;
 256         if (!strcmp((const char *) n->name, "settings"))
 257         {
 258             if (service->settings)
 259             {
 260                 yaz_log(YLOG_FATAL, "Can't repeat 'settings'");
 261                 return 0;
 262             }
 263             service->settings = parse_settings(config, service->nmem, n);
 264             if (!service->settings)
 265                 return 0;
 266         }
 267         else if (!strcmp((const char *) n->name, (const char *) "targetprofiles"))
 268         {
 269             if (service->targetprofiles)
 270             {
 271                 yaz_log(YLOG_FATAL, "Can't repeat targetprofiles");
 272                 return 0;
 273             }
 274             if (!(service->targetprofiles =
 275                   parse_targetprofiles(service->nmem, n)))
 276                 return 0;
 277         }
 278         else if (!strcmp((const char *) n->name, (const char *) "metadata"))
 279         {
 280             xmlChar *xml_name = xmlGetProp(n, (xmlChar *) "name");
 281             xmlChar *xml_brief = xmlGetProp(n, (xmlChar *) "brief");
 282             xmlChar *xml_sortkey = xmlGetProp(n, (xmlChar *) "sortkey");
 283             xmlChar *xml_merge = xmlGetProp(n, (xmlChar *) "merge");
 284             xmlChar *xml_type = xmlGetProp(n, (xmlChar *) "type");
 285             xmlChar *xml_termlist = xmlGetProp(n, (xmlChar *) "termlist");
 286             xmlChar *xml_rank = xmlGetProp(n, (xmlChar *) "rank");
 287             xmlChar *xml_setting = xmlGetProp(n, (xmlChar *) "setting");
 288             xmlChar *xml_mergekey = xmlGetProp(n, (xmlChar *) "mergekey");
 289
 290             enum conf_metadata_type type = Metadata_type_generic;
 291             enum conf_metadata_merge merge = Metadata_merge_no;
 292             enum conf_setting_type setting = Metadata_setting_no;
 293             enum conf_sortkey_type sk_type = Metadata_sortkey_relevance;
 294             enum conf_metadata_mergekey mergekey_type = Metadata_mergekey_no;
 295             int brief = 0;
 296             int termlist = 0;
 297             int rank = 0;
 298             int sortkey_offset = 0;
 299
 300             // now do the parsing logic
 301             if (!xml_name)
 302             {
 303                 yaz_log(YLOG_FATAL, "Must specify name in metadata element");
 304                 return 0;
 305             }
 306             if (xml_brief)
 307             {
 308                 if (!strcmp((const char *) xml_brief, "yes"))
 309                     brief = 1;
 310                  else if (strcmp((const char *) xml_brief, "no"))
 311                 {
 312                     yaz_log(YLOG_FATAL, "metadata/brief must be yes or no");
 313                     return 0;
 314                 }
 315             }
 316             else
 317                 brief = 0;
 318
 319             if (xml_termlist)
 320             {
 321                 if (!strcmp((const char *) xml_termlist, "yes"))
 322                     termlist = 1;
 323                 else if (strcmp((const char *) xml_termlist, "no"))
 324                 {
 325                     yaz_log(YLOG_FATAL, "metadata/termlist must be yes or no");
 326                     return 0;
 327                 }
 328             }
 329             else
 330                 termlist = 0;
 331
 332             if (xml_rank)
 333                 rank = atoi((const char *) xml_rank);
 334             else
 335                 rank = 0;
 336
 337             if (xml_type)
 338             {
 339                 if (!strcmp((const char *) xml_type, "generic"))
 340                     type = Metadata_type_generic;
 341                 else if (!strcmp((const char *) xml_type, "year"))
 342                     type = Metadata_type_year;
 343                 else if (!strcmp((const char *) xml_type, "date"))
 344                     type = Metadata_type_date;
 345                 else
 346                 {
 347                     yaz_log(YLOG_FATAL,
 348                             "Unknown value for metadata/type: %s", xml_type);
 349                     return 0;
 350                 }
 351             }
 352             else
 353                 type = Metadata_type_generic;
 354
 355             if (xml_merge)
 356             {
 357                 if (!strcmp((const char *) xml_merge, "no"))
 358                     merge = Metadata_merge_no;
 359                 else if (!strcmp((const char *) xml_merge, "unique"))
 360                     merge = Metadata_merge_unique;
 361                 else if (!strcmp((const char *) xml_merge, "longest"))
 362                     merge = Metadata_merge_longest;
 363                 else if (!strcmp((const char *) xml_merge, "range"))
 364                     merge = Metadata_merge_range;
 365                 else if (!strcmp((const char *) xml_merge, "all"))
 366                     merge = Metadata_merge_all;
 367                 else
 368                 {
 369                     yaz_log(YLOG_FATAL,
 370                             "Unknown value for metadata/merge: %s", xml_merge);
 371                     return 0;
 372                 }
 373             }
 374             else
 375                 merge = Metadata_merge_no;
 376
 377             if (xml_setting)
 378             {
 379                 if (!strcmp((const char *) xml_setting, "no"))
 380                     setting = Metadata_setting_no;
 381                 else if (!strcmp((const char *) xml_setting, "postproc"))
 382                     setting = Metadata_setting_postproc;
 383                 else if (!strcmp((const char *) xml_setting, "parameter"))
 384                     setting = Metadata_setting_parameter;
 385                 else
 386                 {
 387                     yaz_log(YLOG_FATAL,
 388                         "Unknown value for medadata/setting: %s", xml_setting);
 389                     return 0;
 390                 }
 391             }
 392
 393             // add a sortkey if so specified
 394             if (xml_sortkey && strcmp((const char *) xml_sortkey, "no"))
 395             {
 396                 if (merge == Metadata_merge_no)
 397                 {
 398                     yaz_log(YLOG_FATAL,
 399                             "Can't specify sortkey on a non-merged field");
 400                     return 0;
 401                 }
 402                 if (!strcmp((const char *) xml_sortkey, "numeric"))
 403                     sk_type = Metadata_sortkey_numeric;
 404                 else if (!strcmp((const char *) xml_sortkey, "skiparticle"))
 405                     sk_type = Metadata_sortkey_skiparticle;
 406                 else
 407                 {
 408                     yaz_log(YLOG_FATAL,
 409                             "Unknown sortkey in metadata element: %s",
 410                             xml_sortkey);
 411                     return 0;
 412                 }
 413                 sortkey_offset = sk_node;
 414
 415                 conf_service_add_sortkey(service, sk_node,
 416                                          (const char *) xml_name, sk_type);
 417
 418                 sk_node++;
 419             }
 420             else
 421                 sortkey_offset = -1;
 422
 423             if (xml_mergekey && strcmp((const char *) xml_mergekey, "no"))
 424             {
 425                 mergekey_type = Metadata_mergekey_yes;
 426             }
 427
 428
 429             // metadata known, assign values
 430             conf_service_add_metadata(service, md_node,
 431                                       (const char *) xml_name,
 432                                       type, merge, setting,
 433                                       brief, termlist, rank, sortkey_offset,
 434                                       mergekey_type);
 435
 436             xmlFree(xml_name);
 437             xmlFree(xml_brief);
 438             xmlFree(xml_sortkey);
 439             xmlFree(xml_merge);
 440             xmlFree(xml_type);
 441             xmlFree(xml_termlist);
 442             xmlFree(xml_rank);
 443             xmlFree(xml_setting);
 444             md_node++;
 445         }
 446         else
 447         {
 448             yaz_log(YLOG_FATAL, "Bad element: %s", n->name);
 449             return 0;
 450         }
 451     }
 452     return service;
 453 }
 454
 455 static char *parse_settings(struct conf_config *config,
 456                             NMEM nmem, xmlNode *node)
 457 {
 458     xmlChar *src = xmlGetProp(node, (xmlChar *) "src");
 459     char *r;
 460
 461     if (src)
 462     {
 463         if (yaz_is_abspath((const char *) src) || !wrbuf_len(config->confdir))
 464             r = nmem_strdup(nmem, (const char *) src);
 465         else
 466         {
 467             r = nmem_malloc(nmem,
 468                             wrbuf_len(config->confdir) +
 469                             strlen((const char *) src) + 2);
 470             sprintf(r, "%s/%s", wrbuf_cstr(config->confdir), src);
 471         }
 472     }
 473     else
 474     {
 475         yaz_log(YLOG_FATAL, "Must specify src in targetprofile");
 476         return 0;
 477     }
 478     xmlFree(src);
 479     return r;
 480 }
 481
 482 static struct conf_server *parse_server(struct conf_config *config,
 483                                         NMEM nmem, xmlNode *node)
 484 {
 485     xmlNode *n;
 486     struct conf_server *server = nmem_malloc(nmem, sizeof(struct conf_server));
 487
 488     server->host = 0;
 489     server->port = 0;
 490     server->proxy_host = 0;
 491     server->proxy_port = 0;
 492     server->myurl = 0;
 493     server->proxy_addr = 0;
 494     server->service = 0;
 495     server->next = 0;
 496     server->server_settings = 0;
 497     server->relevance_pct = 0;
 498     server->sort_pct = 0;
 499     server->mergekey_pct = 0;
 500
 501     for (n = node->children; n; n = n->next)
 502     {
 503         if (n->type != XML_ELEMENT_NODE)
 504             continue;
 505         if (!strcmp((const char *) n->name, "listen"))
 506         {
 507             xmlChar *port = xmlGetProp(n, (xmlChar *) "port");
 508             xmlChar *host = xmlGetProp(n, (xmlChar *) "host");
 509             if (port)
 510                 server->port = atoi((const char *) port);
 511             if (host)
 512                 server->host = nmem_strdup(nmem, (const char *) host);
 513             xmlFree(port);
 514             xmlFree(host);
 515         }
 516         else if (!strcmp((const char *) n->name, "proxy"))
 517         {
 518             xmlChar *port = xmlGetProp(n, (xmlChar *) "port");
 519             xmlChar *host = xmlGetProp(n, (xmlChar *) "host");
 520             xmlChar *myurl = xmlGetProp(n, (xmlChar *) "myurl");
 521             if (port)
 522                 server->proxy_port = atoi((const char *) port);
 523             if (host)
 524                 server->proxy_host = nmem_strdup(nmem, (const char *) host);
 525             if (myurl)
 526                 server->myurl = nmem_strdup(nmem, (const char *) myurl);
 527             xmlFree(port);
 528             xmlFree(host);
 529             xmlFree(myurl);
 530         }
 531         else if (!strcmp((const char *) n->name, "settings"))
 532         {
 533             if (server->server_settings)
 534             {
 535                 yaz_log(YLOG_FATAL, "Can't repeat 'settings'");
 536                 return 0;
 537             }
 538             if (!(server->server_settings = parse_settings(config, nmem, n)))
 539                 return 0;
 540         }
 541         else if (!strcmp((const char *) n->name, "relevance"))
 542         {
 543             server->relevance_pct = pp2_charset_create_xml(n);
 544             if (!server->relevance_pct)
 545                 return 0;
 546         }
 547         else if (!strcmp((const char *) n->name, "sort"))
 548         {
 549             server->sort_pct = pp2_charset_create_xml(n);
 550             if (!server->sort_pct)
 551                 return 0;
 552         }
 553         else if (!strcmp((const char *) n->name, "mergekey"))
 554         {
 555             server->mergekey_pct = pp2_charset_create_xml(n);
 556             if (!server->mergekey_pct)
 557                 return 0;
 558         }
 559         else if (!strcmp((const char *) n->name, "service"))
 560         {
 561             char *service_id = (char *)
 562                 xmlGetProp(n, (xmlChar *) "id");
 563
 564             struct conf_service **sp = &server->service;
 565             for (; *sp; sp = &(*sp)->next)
 566                 if ((*sp)->id && service_id &&
 567                     0 == strcmp((*sp)->id, service_id))
 568                 {
 569                     yaz_log(YLOG_FATAL, "Duplicate service: %s", service_id);
 570                     break;
 571                 }
 572                 else if (!(*sp)->id && !service_id)
 573                 {
 574                     yaz_log(YLOG_FATAL, "Duplicate unnamed service");
 575                     break;
 576                 }
 577
 578             if (*sp)  /* service already exist */
 579                 return 0;
 580             else
 581             {
 582                 struct conf_service *s = parse_service(config, n, service_id);
 583                 if (s)
 584                 {
 585                     s->relevance_pct = server->relevance_pct ?
 586                         server->relevance_pct : pp2_charset_create(0);
 587                     s->sort_pct = server->sort_pct ?
 588                         server->sort_pct : pp2_charset_create(0);
 589                     s->mergekey_pct = server->mergekey_pct ?
 590                         server->mergekey_pct : pp2_charset_create(0);
 591                     *sp = s;
 592                 }
 593             }
 594             xmlFree(service_id);
 595         }
 596         else
 597         {
 598             yaz_log(YLOG_FATAL, "Bad element: %s", n->name);
 599             return 0;
 600         }
 601     }
 602     return server;
 603 }
 604
 605 xsltStylesheet *conf_load_stylesheet(struct conf_config *config,
 606                                      const char *fname)
 607 {
 608     char path[256];
 609     if (yaz_is_abspath(fname) || !config || !wrbuf_len(config->confdir))
 610         yaz_snprintf(path, sizeof(path), fname);
 611     else
 612         yaz_snprintf(path, sizeof(path), "%s/%s",
 613                      wrbuf_cstr(config->confdir), fname);
 614     return xsltParseStylesheetFile((xmlChar *) path);
 615 }
 616
 617 static struct conf_targetprofiles *parse_targetprofiles(NMEM nmem,
 618                                                         xmlNode *node)
 619 {
 620     struct conf_targetprofiles *r = nmem_malloc(nmem, sizeof(*r));
 621     xmlChar *type = xmlGetProp(node, (xmlChar *) "type");
 622     xmlChar *src = xmlGetProp(node, (xmlChar *) "src");
 623
 624     memset(r, 0, sizeof(*r));
 625
 626     if (type)
 627     {
 628         if (!strcmp((const char *) type, "local"))
 629             r->type = Targetprofiles_local;
 630         else
 631         {
 632             yaz_log(YLOG_FATAL, "Unknown targetprofile type");
 633             return 0;
 634         }
 635     }
 636     else
 637     {
 638         yaz_log(YLOG_FATAL, "Must specify type for targetprofile");
 639         return 0;
 640     }
 641
 642     if (src)
 643         r->src = nmem_strdup(nmem, (const char *) src);
 644     else
 645     {
 646         yaz_log(YLOG_FATAL, "Must specify src in targetprofile");
 647         return 0;
 648     }
 649     xmlFree(type);
 650     xmlFree(src);
 651     return r;
 652 }
 653
 654 struct conf_service *locate_service(struct conf_server *server,
 655                                     const char *service_id)
 656 {
 657     struct conf_service *s = server->service;
 658     for (; s; s = s->next)
 659         if (s->id && service_id && 0 == strcmp(s->id, service_id))
 660             return s;
 661         else if (!s->id && !service_id)
 662             return s;
 663     return 0;
 664 }
 665
 666
 667 static int parse_config(struct conf_config *config, xmlNode *root)
 668 {
 669     xmlNode *n;
 670
 671     for (n = root->children; n; n = n->next)
 672     {
 673         if (n->type != XML_ELEMENT_NODE)
 674             continue;
 675         if (!strcmp((const char *) n->name, "server"))
 676         {
 677             struct conf_server *tmp = parse_server(config, config->nmem, n);
 678             if (!tmp)
 679                 return -1;
 680             tmp->next = config->servers;
 681             config->servers = tmp;
 682         }
 683         else if (!strcmp((const char *) n->name, "targetprofiles"))
 684         {
 685             yaz_log(YLOG_FATAL, "targetprofiles unsupported here. Must be part of service");
 686             return -1;
 687
 688         }
 689         else
 690         {
 691             yaz_log(YLOG_FATAL, "Bad element: %s", n->name);
 692             return -1;
 693         }
 694     }
 695     return 0;
 696 }
 697
 698 static void config_include_src(struct conf_config *config, xmlNode *n,
 699                                const char *src)
 700 {
 701     xmlDoc *doc = xmlParseFile(src);
 702     yaz_log(YLOG_LOG, "processing incldue src=%s", src);
 703     if (doc)
 704     {
 705         xmlNodePtr t = xmlDocGetRootElement(doc);
 706         xmlReplaceNode(n, xmlCopyNode(t, 1));
 707         xmlFreeDoc(doc);
 708     }
 709 }
 710
 711 static void process_config_includes(struct conf_config *config, xmlNode *n)
 712 {
 713     for (; n; n = n->next)
 714     {
 715         if (n->type == XML_ELEMENT_NODE)
 716         {
 717             if (!strcmp((const char *) n->name, "include"))
 718             {
 719                 xmlChar *src = xmlGetProp(n, (xmlChar *) "src");
 720                 if (src)
 721                 {
 722                     config_include_src(config, n, (const char *) src);
 723                     xmlFree(src);
 724                 }
 725             }
 726         }
 727         process_config_includes(config, n->children);
 728     }
 729 }
 730
 731 struct conf_config *read_config(const char *fname)
 732 {
 733     xmlDoc *doc = xmlParseFile(fname);
 734     xmlNode *n;
 735     const char *p;
 736     int r;
 737     NMEM nmem = nmem_create();
 738     struct conf_config *config = nmem_malloc(nmem, sizeof(struct conf_config));
 739
 740     xmlSubstituteEntitiesDefault(1);
 741     xmlLoadExtDtdDefaultValue = 1;
 742     if (!doc)
 743     {
 744         yaz_log(YLOG_FATAL, "Failed to read %s", fname);
 745         exit(1);
 746     }
 747
 748     config->nmem = nmem;
 749     config->servers = 0;
 750
 751     config->confdir = wrbuf_alloc();
 752     if ((p = strrchr(fname,
 753 #ifdef WIN32
 754                      '\\'
 755 #else
 756                      '/'
 757 #endif
 758              )))
 759     {
 760         int len = p - fname;
 761         wrbuf_write(config->confdir, fname, len);
 762     }
 763     wrbuf_puts(config->confdir, "");
 764
 765     n = xmlDocGetRootElement(doc);
 766     process_config_includes(config, n);
 767     xmlDocFormatDump(stdout, doc, 0);
 768     r = parse_config(config, n);
 769     xmlFreeDoc(doc);
 770
 771     if (r)
 772         return 0;
 773     return config;
 774 }
 775
 776 void config_read_settings(struct conf_config *config,
 777                           const char *path_override)
 778 {
 779     struct conf_service *s = config->servers->service;
 780     for (;s ; s = s->next)
 781     {
 782         init_settings(s);
 783         if (path_override)
 784             settings_read(s, path_override);
 785         else if (s->settings)
 786             settings_read(s, s->settings);
 787         else if (config->servers->server_settings)
 788             settings_read(s, config->servers->server_settings);
 789         else
 790             yaz_log(YLOG_WARN, "No settings for service");
 791     }
 792 }
 793
 794 void config_stop_listeners(struct conf_config *conf)
 795 {
 796     struct conf_server *ser;
 797     for (ser = conf->servers; ser; ser = ser->next)
 798         http_close_server(ser);
 799 }
 800
 801 int config_start_listeners(struct conf_config *conf,
 802                            const char *listener_override,
 803                            const char *proxy_override)
 804 {
 805     struct conf_server *ser;
 806     for (ser = conf->servers; ser; ser = ser->next)
 807     {
 808         WRBUF w = wrbuf_alloc();
 809         int r;
 810         if (listener_override)
 811         {
 812             wrbuf_puts(w, listener_override);
 813             listener_override = 0; /* only first server is overriden */
 814         }
 815         else
 816         {
 817             if (ser->host)
 818                 wrbuf_puts(w, ser->host);
 819             if (ser->port)
 820             {
 821                 if (wrbuf_len(w))
 822                     wrbuf_puts(w, ":");
 823                 wrbuf_printf(w, "%d", ser->port);
 824             }
 825         }
 826         r = http_init(wrbuf_cstr(w), ser);
 827         wrbuf_destroy(w);
 828         if (r)
 829             return -1;
 830
 831         w = wrbuf_alloc();
 832         if (proxy_override)
 833             wrbuf_puts(w, proxy_override);
 834         else if (ser->proxy_host || ser->proxy_port)
 835         {
 836             if (ser->proxy_host)
 837                 wrbuf_puts(w, ser->proxy_host);
 838             if (ser->proxy_port)
 839             {
 840                 if (wrbuf_len(w))
 841                     wrbuf_puts(w, ":");
 842                 wrbuf_printf(w, "%d", ser->proxy_port);
 843             }
 844         }
 845         if (wrbuf_len(w))
 846             http_set_proxyaddr(wrbuf_cstr(w), ser);
 847         wrbuf_destroy(w);
 848     }
 849     return 0;
 850 }
 851
 852 /*
 853  * Local variables:
 854  * c-basic-offset: 4
 855  * c-file-style: "Stroustrup"
 856  * indent-tabs-mode: nil
 857  * End:
 858  * vim: shiftwidth=4 tabstop=8 expandtab
 859  */
 860