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 #include <assert.h>
  26
  27 #include <libxml/parser.h>
  28 #include <libxml/tree.h>
  29 #include <libxslt/xslt.h>
  30 #include <libxslt/transform.h>
  31 #include <libxslt/xsltutils.h>
  32
  33 #include <yaz/yaz-util.h>
  34 #include <yaz/nmem.h>
  35 #include <yaz/snprintf.h>
  36 #include <yaz/tpath.h>
  37
  38 #if HAVE_GLOB_H
  39 #define USE_POSIX_GLOB 1
  40 #else
  41 #define USE_POSIX_GLOB 0
  42 #endif
  43
  44
  45 #if USE_POSIX_GLOB
  46 #include <glob.h>
  47 #endif
  48 #include <sys/types.h>
  49 #include <sys/stat.h>
  50 #if HAVE_UNISTD_H
  51 #include <unistd.h>
  52 #endif
  53 #include "pazpar2_config.h"
  54 #include "settings.h"
  55 #include "eventl.h"
  56 #include "http.h"
  57
  58 struct conf_config
  59 {
  60     NMEM nmem; /* for conf_config and servers memory */
  61     struct conf_server *servers;
  62     WRBUF confdir;
  63 };
  64
  65
  66 static char *parse_settings(struct conf_config *config,
  67                             NMEM nmem, xmlNode *node);
  68
  69 static struct conf_targetprofiles *parse_targetprofiles(NMEM nmem,
  70                                                         xmlNode *node);
  71
  72 static void conf_metadata_assign(NMEM nmem,
  73                                  struct conf_metadata * metadata,
  74                                  const char *name,
  75                                  enum conf_metadata_type type,
  76                                  enum conf_metadata_merge merge,
  77                                  enum conf_setting_type setting,
  78                                  int brief,
  79                                  int termlist,
  80                                  int rank,
  81                                  int sortkey_offset,
  82                                  enum conf_metadata_mergekey mt)
  83 {
  84     assert(nmem && metadata && name);
  85
  86     metadata->name = nmem_strdup(nmem, name);
  87
  88     metadata->type = type;
  89
  90     // enforcing that type_year is always range_merge
  91     if (metadata->type == Metadata_type_year)
  92         metadata->merge = Metadata_merge_range;
  93     else
  94         metadata->merge = merge;
  95
  96     metadata->setting = setting;
  97     metadata->brief = brief;
  98     metadata->termlist = termlist;
  99     metadata->rank = rank;
 100     metadata->sortkey_offset = sortkey_offset;
 101     metadata->mergekey = mt;
 102 }
 103
 104
 105 static void conf_sortkey_assign(NMEM nmem,
 106                                 struct conf_sortkey * sortkey,
 107                                 const char *name,
 108                                 enum conf_sortkey_type type)
 109 {
 110     assert(nmem && sortkey && name);
 111
 112     sortkey->name = nmem_strdup(nmem, name);
 113     sortkey->type = type;
 114 }
 115
 116
 117 static struct conf_service *service_init(struct conf_config *config,
 118                                          int num_metadata, int num_sortkeys,
 119                                          const char *service_id)
 120 {
 121     struct conf_service * service = 0;
 122     NMEM nmem = nmem_create();
 123
 124     service = nmem_malloc(nmem, sizeof(struct conf_service));
 125     service->nmem = nmem;
 126     service->next = 0;
 127     service->settings = 0;
 128     service->databases = 0;
 129     service->targetprofiles = 0;
 130     service->config = config;
 131
 132     service->relevance_pct = 0;
 133     service->sort_pct = 0;
 134     service->mergekey_pct = 0;
 135
 136     service->id = service_id ? nmem_strdup(nmem, service_id) : 0;
 137     service->num_metadata = num_metadata;
 138     service->metadata = 0;
 139     if (service->num_metadata)
 140       service->metadata
 141           = nmem_malloc(nmem,
 142                         sizeof(struct conf_metadata) * service->num_metadata);
 143     service->num_sortkeys = num_sortkeys;
 144     service->sortkeys = 0;
 145     if (service->num_sortkeys)
 146         service->sortkeys
 147             = nmem_malloc(nmem,
 148                           sizeof(struct conf_sortkey) * service->num_sortkeys);
 149     service->dictionary = 0;
 150     return service;
 151 }
 152
 153 struct conf_metadata* conf_service_add_metadata(struct conf_service *service,
 154                                                 int field_id,
 155                                                 const char *name,
 156                                                 enum conf_metadata_type type,
 157                                                 enum conf_metadata_merge merge,
 158                                                 enum conf_setting_type setting,
 159                                                 int brief,
 160                                                 int termlist,
 161                                                 int rank,
 162                                                 int sortkey_offset,
 163                                                 enum conf_metadata_mergekey mt)
 164 {
 165     struct conf_metadata * md = 0;
 166
 167     if (!service || !service->metadata || !service->num_metadata
 168         || field_id < 0  || !(field_id < service->num_metadata))
 169         return 0;
 170
 171     md = service->metadata + field_id;
 172     conf_metadata_assign(service->nmem, md, name, type, merge, setting,
 173                          brief, termlist, rank, sortkey_offset,
 174                          mt);
 175     return md;
 176 }
 177
 178
 179 struct conf_sortkey * conf_service_add_sortkey(struct conf_service *service,
 180                                                int field_id,
 181                                                const char *name,
 182                                                enum conf_sortkey_type type)
 183 {
 184     struct conf_sortkey * sk = 0;
 185
 186     if (!service || !service->sortkeys || !service->num_sortkeys
 187         || field_id < 0  || !(field_id < service->num_sortkeys))
 188         return 0;
 189
 190     //sk = &((service->sortkeys)[field_id]);
 191     sk = service->sortkeys + field_id;
 192     conf_sortkey_assign(service->nmem, sk, name, type);
 193
 194     return sk;
 195 }
 196
 197
 198 int conf_service_metadata_field_id(struct conf_service *service,
 199                                    const char * name)
 200 {
 201     int i = 0;
 202
 203     if (!service || !service->metadata || !service->num_metadata)
 204         return -1;
 205
 206     for(i = 0; i < service->num_metadata; i++) {
 207         if (!strcmp(name, (service->metadata[i]).name))
 208             return i;
 209     }
 210
 211     return -1;
 212 }
 213
 214
 215 int conf_service_sortkey_field_id(struct conf_service *service,
 216                                   const char * name)
 217 {
 218     int i = 0;
 219
 220     if (!service || !service->sortkeys || !service->num_sortkeys)
 221         return -1;
 222
 223     for(i = 0; i < service->num_sortkeys; i++) {
 224         if (!strcmp(name, (service->sortkeys[i]).name))
 225             return i;
 226     }
 227
 228     return -1;
 229 }
 230
 231 static void conf_dir_path(struct conf_config *config, WRBUF w, const char *src)
 232 {
 233     if (config->confdir && wrbuf_len(config->confdir) > 0 &&
 234         !yaz_is_abspath(src))
 235     {
 236         wrbuf_printf(w, "%s/%s", wrbuf_cstr(config->confdir), src);
 237     }
 238     else
 239         wrbuf_puts(w, src);
 240 }
 241
 242 static void service_destroy(struct conf_service *service)
 243 {
 244     if (service)
 245     {
 246         pp2_charset_destroy(service->relevance_pct);
 247         pp2_charset_destroy(service->sort_pct);
 248         pp2_charset_destroy(service->mergekey_pct);
 249         nmem_destroy(service->nmem);
 250     }
 251 }
 252
 253 static struct conf_service *service_create(struct conf_config *config,
 254                                            xmlNode *node,
 255                                            const char *service_id)
 256 {
 257     xmlNode *n;
 258     int md_node = 0;
 259     int sk_node = 0;
 260
 261     struct conf_service *service = 0;
 262     int num_metadata = 0;
 263     int num_sortkeys = 0;
 264     int got_settings = 0;
 265
 266     // count num_metadata and num_sortkeys
 267     for (n = node->children; n; n = n->next)
 268         if (n->type == XML_ELEMENT_NODE && !strcmp((const char *)
 269                                                    n->name, "metadata"))
 270         {
 271             xmlChar *sortkey = xmlGetProp(n, (xmlChar *) "sortkey");
 272             num_metadata++;
 273             if (sortkey && strcmp((const char *) sortkey, "no"))
 274                 num_sortkeys++;
 275             xmlFree(sortkey);
 276         }
 277
 278     service = service_init(config, num_metadata, num_sortkeys, service_id);
 279
 280     for (n = node->children; n; n = n->next)
 281     {
 282         if (n->type != XML_ELEMENT_NODE)
 283             continue;
 284         if (!strcmp((const char *) n->name, "settings"))
 285             got_settings++;
 286         else if (!strcmp((const char *) n->name, (const char *) "targetprofiles"))
 287         {
 288             if (service->targetprofiles)
 289             {
 290                 yaz_log(YLOG_FATAL, "Can't repeat targetprofiles");
 291                 return 0;
 292             }
 293             if (!(service->targetprofiles =
 294                   parse_targetprofiles(service->nmem, n)))
 295                 return 0;
 296         }
 297         else if (!strcmp((const char *) n->name, "relevance"))
 298         {
 299             if (service->relevance_pct)
 300             {
 301                 yaz_log(YLOG_LOG, "relevance may not repeat in service");
 302                 return 0;
 303             }
 304             else
 305             {
 306                 service->relevance_pct = pp2_charset_create_xml(n);
 307                 if (!service->relevance_pct)
 308                     return 0;
 309             }
 310         }
 311         else if (!strcmp((const char *) n->name, "sort"))
 312         {
 313             if (service->sort_pct)
 314             {
 315                 yaz_log(YLOG_LOG, "sort may not repeat in service");
 316                 return 0;
 317             }
 318             else
 319             {
 320                 service->sort_pct = pp2_charset_create_xml(n);
 321                 if (!service->sort_pct)
 322                     return 0;
 323             }
 324         }
 325         else if (!strcmp((const char *) n->name, "mergekey"))
 326         {
 327             if (service->mergekey_pct)
 328             {
 329                 yaz_log(YLOG_LOG, "mergekey may not repeat in service");
 330                 return 0;
 331             }
 332             else
 333             {
 334                 service->mergekey_pct = pp2_charset_create_xml(n);
 335                 if (!service->mergekey_pct)
 336                     return 0;
 337             }
 338         }
 339         else if (!strcmp((const char *) n->name, (const char *) "metadata"))
 340         {
 341             xmlChar *xml_name = xmlGetProp(n, (xmlChar *) "name");
 342             xmlChar *xml_brief = xmlGetProp(n, (xmlChar *) "brief");
 343             xmlChar *xml_sortkey = xmlGetProp(n, (xmlChar *) "sortkey");
 344             xmlChar *xml_merge = xmlGetProp(n, (xmlChar *) "merge");
 345             xmlChar *xml_type = xmlGetProp(n, (xmlChar *) "type");
 346             xmlChar *xml_termlist = xmlGetProp(n, (xmlChar *) "termlist");
 347             xmlChar *xml_rank = xmlGetProp(n, (xmlChar *) "rank");
 348             xmlChar *xml_setting = xmlGetProp(n, (xmlChar *) "setting");
 349             xmlChar *xml_mergekey = xmlGetProp(n, (xmlChar *) "mergekey");
 350
 351             enum conf_metadata_type type = Metadata_type_generic;
 352             enum conf_metadata_merge merge = Metadata_merge_no;
 353             enum conf_setting_type setting = Metadata_setting_no;
 354             enum conf_sortkey_type sk_type = Metadata_sortkey_relevance;
 355             enum conf_metadata_mergekey mergekey_type = Metadata_mergekey_no;
 356             int brief = 0;
 357             int termlist = 0;
 358             int rank = 0;
 359             int sortkey_offset = 0;
 360
 361             // now do the parsing logic
 362             if (!xml_name)
 363             {
 364                 yaz_log(YLOG_FATAL, "Must specify name in metadata element");
 365                 return 0;
 366             }
 367             if (xml_brief)
 368             {
 369                 if (!strcmp((const char *) xml_brief, "yes"))
 370                     brief = 1;
 371                  else if (strcmp((const char *) xml_brief, "no"))
 372                 {
 373                     yaz_log(YLOG_FATAL, "metadata/brief must be yes or no");
 374                     return 0;
 375                 }
 376             }
 377             else
 378                 brief = 0;
 379
 380             if (xml_termlist)
 381             {
 382                 if (!strcmp((const char *) xml_termlist, "yes"))
 383                     termlist = 1;
 384                 else if (strcmp((const char *) xml_termlist, "no"))
 385                 {
 386                     yaz_log(YLOG_FATAL, "metadata/termlist must be yes or no");
 387                     return 0;
 388                 }
 389             }
 390             else
 391                 termlist = 0;
 392
 393             if (xml_rank)
 394                 rank = atoi((const char *) xml_rank);
 395             else
 396                 rank = 0;
 397
 398             if (xml_type)
 399             {
 400                 if (!strcmp((const char *) xml_type, "generic"))
 401                     type = Metadata_type_generic;
 402                 else if (!strcmp((const char *) xml_type, "year"))
 403                     type = Metadata_type_year;
 404                 else if (!strcmp((const char *) xml_type, "date"))
 405                     type = Metadata_type_date;
 406                 else
 407                 {
 408                     yaz_log(YLOG_FATAL,
 409                             "Unknown value for metadata/type: %s", xml_type);
 410                     return 0;
 411                 }
 412             }
 413             else
 414                 type = Metadata_type_generic;
 415
 416             if (xml_merge)
 417             {
 418                 if (!strcmp((const char *) xml_merge, "no"))
 419                     merge = Metadata_merge_no;
 420                 else if (!strcmp((const char *) xml_merge, "unique"))
 421                     merge = Metadata_merge_unique;
 422                 else if (!strcmp((const char *) xml_merge, "longest"))
 423                     merge = Metadata_merge_longest;
 424                 else if (!strcmp((const char *) xml_merge, "range"))
 425                     merge = Metadata_merge_range;
 426                 else if (!strcmp((const char *) xml_merge, "all"))
 427                     merge = Metadata_merge_all;
 428                 else
 429                 {
 430                     yaz_log(YLOG_FATAL,
 431                             "Unknown value for metadata/merge: %s", xml_merge);
 432                     return 0;
 433                 }
 434             }
 435             else
 436                 merge = Metadata_merge_no;
 437
 438             if (xml_setting)
 439             {
 440                 if (!strcmp((const char *) xml_setting, "no"))
 441                     setting = Metadata_setting_no;
 442                 else if (!strcmp((const char *) xml_setting, "postproc"))
 443                     setting = Metadata_setting_postproc;
 444                 else if (!strcmp((const char *) xml_setting, "parameter"))
 445                     setting = Metadata_setting_parameter;
 446                 else
 447                 {
 448                     yaz_log(YLOG_FATAL,
 449                         "Unknown value for medadata/setting: %s", xml_setting);
 450                     return 0;
 451                 }
 452             }
 453
 454             // add a sortkey if so specified
 455             if (xml_sortkey && strcmp((const char *) xml_sortkey, "no"))
 456             {
 457                 if (merge == Metadata_merge_no)
 458                 {
 459                     yaz_log(YLOG_FATAL,
 460                             "Can't specify sortkey on a non-merged field");
 461                     return 0;
 462                 }
 463                 if (!strcmp((const char *) xml_sortkey, "numeric"))
 464                     sk_type = Metadata_sortkey_numeric;
 465                 else if (!strcmp((const char *) xml_sortkey, "skiparticle"))
 466                     sk_type = Metadata_sortkey_skiparticle;
 467                 else
 468                 {
 469                     yaz_log(YLOG_FATAL,
 470                             "Unknown sortkey in metadata element: %s",
 471                             xml_sortkey);
 472                     return 0;
 473                 }
 474                 sortkey_offset = sk_node;
 475
 476                 conf_service_add_sortkey(service, sk_node,
 477                                          (const char *) xml_name, sk_type);
 478
 479                 sk_node++;
 480             }
 481             else
 482                 sortkey_offset = -1;
 483
 484             if (xml_mergekey && strcmp((const char *) xml_mergekey, "no"))
 485             {
 486                 mergekey_type = Metadata_mergekey_yes;
 487             }
 488
 489
 490             // metadata known, assign values
 491             conf_service_add_metadata(service, md_node,
 492                                       (const char *) xml_name,
 493                                       type, merge, setting,
 494                                       brief, termlist, rank, sortkey_offset,
 495                                       mergekey_type);
 496
 497             xmlFree(xml_name);
 498             xmlFree(xml_brief);
 499             xmlFree(xml_sortkey);
 500             xmlFree(xml_merge);
 501             xmlFree(xml_type);
 502             xmlFree(xml_termlist);
 503             xmlFree(xml_rank);
 504             xmlFree(xml_setting);
 505             md_node++;
 506         }
 507         else
 508         {
 509             yaz_log(YLOG_FATAL, "Bad element: %s", n->name);
 510             return 0;
 511         }
 512     }
 513     if (got_settings)
 514     {
 515         int pass;
 516         /* metadata has been read.. Consider now settings */
 517         init_settings(service);
 518         for (pass = 1; pass <= 2; pass++)
 519         {
 520             for (n = node->children; n; n = n->next)
 521             {
 522                 if (n->type != XML_ELEMENT_NODE)
 523                     continue;
 524                 if (!strcmp((const char *) n->name, "settings"))
 525                 {
 526                     xmlChar *src = xmlGetProp(n, (xmlChar *) "src");
 527                     if (src)
 528                     {
 529                         WRBUF w = wrbuf_alloc();
 530                         conf_dir_path(config, w, (const char *) src);
 531                         settings_read_file(service, wrbuf_cstr(w), pass);
 532                         wrbuf_destroy(w);
 533                         xmlFree(src);
 534                     }
 535                     else
 536                     {
 537                         settings_read_node(service, n, pass);
 538                     }
 539                 }
 540             }
 541         }
 542     }
 543     else
 544     {
 545     }
 546     return service;
 547 }
 548
 549 static char *parse_settings(struct conf_config *config,
 550                             NMEM nmem, xmlNode *node)
 551 {
 552     xmlChar *src = xmlGetProp(node, (xmlChar *) "src");
 553     char *r;
 554
 555     if (src)
 556     {
 557         WRBUF w = wrbuf_alloc();
 558         conf_dir_path(config, w, (const char *) src);
 559         r = nmem_strdup(nmem, wrbuf_cstr(w));
 560         wrbuf_destroy(w);
 561     }
 562     else
 563     {
 564         yaz_log(YLOG_FATAL, "Must specify src in targetprofile");
 565         return 0;
 566     }
 567     xmlFree(src);
 568     return r;
 569 }
 570
 571 static void inherit_server_settings(struct conf_server *server)
 572 {
 573     struct conf_service *s;
 574     for (s = server->service; s; s = s->next)
 575     {
 576         if (!s->dictionary) /* service has no config settings ? */
 577         {
 578             if (server->server_settings)
 579             {
 580                 /* inherit settings from server */
 581                 init_settings(s);
 582                 settings_read_file(s, server->server_settings, 1);
 583                 settings_read_file(s, server->server_settings, 2);
 584             }
 585             else
 586             {
 587                 yaz_log(YLOG_WARN, "service '%s' has no settings",
 588                         s->id ? s->id : "unnamed");
 589                 init_settings(s);
 590             }
 591         }
 592
 593         /* use relevance/sort/mergekey from server if not defined
 594            for this service.. */
 595         if (!s->relevance_pct)
 596         {
 597             if (server->relevance_pct)
 598             {
 599                 s->relevance_pct = server->relevance_pct;
 600                 pp2_charset_incref(s->relevance_pct);
 601             }
 602             else
 603                 s->relevance_pct = pp2_charset_create(0);
 604         }
 605
 606         if (!s->sort_pct)
 607         {
 608             if (server->sort_pct)
 609             {
 610                 s->sort_pct = server->sort_pct;
 611                 pp2_charset_incref(s->sort_pct);
 612             }
 613             else
 614                 s->sort_pct = pp2_charset_create(0);
 615         }
 616
 617         if (!s->mergekey_pct)
 618         {
 619             if (server->mergekey_pct)
 620             {
 621                 s->mergekey_pct = server->mergekey_pct;
 622                 pp2_charset_incref(s->mergekey_pct);
 623             }
 624             else
 625                 s->mergekey_pct = pp2_charset_create(0);
 626         }
 627     }
 628 }
 629
 630 static struct conf_server *server_create(struct conf_config *config,
 631                                          NMEM nmem, xmlNode *node)
 632 {
 633     xmlNode *n;
 634     struct conf_server *server = nmem_malloc(nmem, sizeof(struct conf_server));
 635
 636     server->host = 0;
 637     server->port = 0;
 638     server->proxy_host = 0;
 639     server->proxy_port = 0;
 640     server->myurl = 0;
 641     server->proxy_addr = 0;
 642     server->service = 0;
 643     server->next = 0;
 644     server->relevance_pct = 0;
 645     server->sort_pct = 0;
 646     server->mergekey_pct = 0;
 647     server->server_settings = 0;
 648
 649     for (n = node->children; n; n = n->next)
 650     {
 651         if (n->type != XML_ELEMENT_NODE)
 652             continue;
 653         if (!strcmp((const char *) n->name, "listen"))
 654         {
 655             xmlChar *port = xmlGetProp(n, (xmlChar *) "port");
 656             xmlChar *host = xmlGetProp(n, (xmlChar *) "host");
 657             if (port)
 658                 server->port = atoi((const char *) port);
 659             if (host)
 660                 server->host = nmem_strdup(nmem, (const char *) host);
 661             xmlFree(port);
 662             xmlFree(host);
 663         }
 664         else if (!strcmp((const char *) n->name, "proxy"))
 665         {
 666             xmlChar *port = xmlGetProp(n, (xmlChar *) "port");
 667             xmlChar *host = xmlGetProp(n, (xmlChar *) "host");
 668             xmlChar *myurl = xmlGetProp(n, (xmlChar *) "myurl");
 669             if (port)
 670                 server->proxy_port = atoi((const char *) port);
 671             if (host)
 672                 server->proxy_host = nmem_strdup(nmem, (const char *) host);
 673             if (myurl)
 674                 server->myurl = nmem_strdup(nmem, (const char *) myurl);
 675             xmlFree(port);
 676             xmlFree(host);
 677             xmlFree(myurl);
 678         }
 679         else if (!strcmp((const char *) n->name, "settings"))
 680         {
 681             if (server->server_settings)
 682             {
 683                 yaz_log(YLOG_FATAL, "Can't repeat 'settings'");
 684                 return 0;
 685             }
 686             if (!(server->server_settings = parse_settings(config, nmem, n)))
 687                 return 0;
 688         }
 689         else if (!strcmp((const char *) n->name, "relevance"))
 690         {
 691             server->relevance_pct = pp2_charset_create_xml(n);
 692             if (!server->relevance_pct)
 693                 return 0;
 694         }
 695         else if (!strcmp((const char *) n->name, "sort"))
 696         {
 697             server->sort_pct = pp2_charset_create_xml(n);
 698             if (!server->sort_pct)
 699                 return 0;
 700         }
 701         else if (!strcmp((const char *) n->name, "mergekey"))
 702         {
 703             server->mergekey_pct = pp2_charset_create_xml(n);
 704             if (!server->mergekey_pct)
 705                 return 0;
 706         }
 707         else if (!strcmp((const char *) n->name, "service"))
 708         {
 709             char *service_id = (char *)
 710                 xmlGetProp(n, (xmlChar *) "id");
 711
 712             struct conf_service **sp = &server->service;
 713             for (; *sp; sp = &(*sp)->next)
 714                 if ((*sp)->id && service_id &&
 715                     0 == strcmp((*sp)->id, service_id))
 716                 {
 717                     yaz_log(YLOG_FATAL, "Duplicate service: %s", service_id);
 718                     break;
 719                 }
 720                 else if (!(*sp)->id && !service_id)
 721                 {
 722                     yaz_log(YLOG_FATAL, "Duplicate unnamed service '%s'",
 723                         service_id);
 724                     break;
 725                 }
 726
 727             if (*sp)  /* service already exist */
 728             {
 729                 xmlFree(service_id);
 730                 return 0;
 731             }
 732             else
 733             {
 734                 struct conf_service *s = service_create(config, n,
 735                                                         service_id);
 736                 xmlFree(service_id);
 737                 if (!s)
 738                     return 0;
 739                 *sp = s;
 740             }
 741         }
 742         else
 743         {
 744             yaz_log(YLOG_FATAL, "Bad element: %s", n->name);
 745             return 0;
 746         }
 747     }
 748     inherit_server_settings(server);
 749     return server;
 750 }
 751
 752 xsltStylesheet *conf_load_stylesheet(struct conf_config *config,
 753                                      const char *fname)
 754 {
 755     WRBUF w = wrbuf_alloc();
 756     xsltStylesheet *s;
 757
 758     conf_dir_path(config, w, fname);
 759     s = xsltParseStylesheetFile((xmlChar *) wrbuf_cstr(w));
 760     wrbuf_destroy(w);
 761     return s;
 762 }
 763
 764 static struct conf_targetprofiles *parse_targetprofiles(NMEM nmem,
 765                                                         xmlNode *node)
 766 {
 767     struct conf_targetprofiles *r = nmem_malloc(nmem, sizeof(*r));
 768     xmlChar *type = xmlGetProp(node, (xmlChar *) "type");
 769     xmlChar *src = xmlGetProp(node, (xmlChar *) "src");
 770
 771     memset(r, 0, sizeof(*r));
 772
 773     if (type)
 774     {
 775         if (!strcmp((const char *) type, "local"))
 776             r->type = Targetprofiles_local;
 777         else
 778         {
 779             yaz_log(YLOG_FATAL, "Unknown targetprofile type");
 780             return 0;
 781         }
 782     }
 783     else
 784     {
 785         yaz_log(YLOG_FATAL, "Must specify type for targetprofile");
 786         return 0;
 787     }
 788
 789     if (src)
 790         r->src = nmem_strdup(nmem, (const char *) src);
 791     else
 792     {
 793         yaz_log(YLOG_FATAL, "Must specify src in targetprofile");
 794         return 0;
 795     }
 796     xmlFree(type);
 797     xmlFree(src);
 798     return r;
 799 }
 800
 801 struct conf_service *locate_service(struct conf_server *server,
 802                                     const char *service_id)
 803 {
 804     struct conf_service *s = server->service;
 805     for (; s; s = s->next)
 806         if (s->id && service_id && 0 == strcmp(s->id, service_id))
 807             return s;
 808         else if (!s->id && !service_id)
 809             return s;
 810     return 0;
 811 }
 812
 813
 814 static int parse_config(struct conf_config *config, xmlNode *root)
 815 {
 816     xmlNode *n;
 817
 818     for (n = root->children; n; n = n->next)
 819     {
 820         if (n->type != XML_ELEMENT_NODE)
 821             continue;
 822         if (!strcmp((const char *) n->name, "server"))
 823         {
 824             struct conf_server *tmp = server_create(config, config->nmem, n);
 825             if (!tmp)
 826                 return -1;
 827             tmp->next = config->servers;
 828             config->servers = tmp;
 829         }
 830         else if (!strcmp((const char *) n->name, "targetprofiles"))
 831         {
 832             yaz_log(YLOG_FATAL, "targetprofiles unsupported here. Must be part of service");
 833             return -1;
 834
 835         }
 836         else
 837         {
 838             yaz_log(YLOG_FATAL, "Bad element: %s", n->name);
 839             return -1;
 840         }
 841     }
 842     return 0;
 843 }
 844
 845 static int process_config_includes(struct conf_config *config, xmlNode *n);
 846
 847 static int config_include_one(struct conf_config *config, xmlNode **sib,
 848     const char *path)
 849 {
 850     struct stat st;
 851     if (stat(path, &st) < 0)
 852     {
 853         yaz_log(YLOG_FATAL|YLOG_ERRNO, "stat %s", path);
 854         return -1;
 855     }
 856     else
 857     {
 858         if ((st.st_mode & S_IFMT) == S_IFREG)
 859         {
 860             xmlDoc *doc = xmlParseFile(path);
 861             if (doc)
 862             {
 863                 xmlNodePtr t = xmlDocGetRootElement(doc);
 864                 int ret = process_config_includes(config, t);
 865                 *sib = xmlAddNextSibling(*sib, xmlCopyNode(t, 1));
 866                 xmlFreeDoc(doc);
 867                 if (ret)
 868                     return -1;
 869             }
 870             else
 871             {
 872                 yaz_log(YLOG_FATAL, "Could not parse %s", path);
 873                 return -1;
 874             }
 875         }
 876     }
 877     return 0;
 878 }
 879
 880 static int config_include_src(struct conf_config *config, xmlNode **np,
 881                               const char *src)
 882 {
 883     int ret = 0; /* return code. OK so far */
 884     WRBUF w = wrbuf_alloc();
 885     xmlNodePtr sib; /* our sibling that we append */
 886     xmlNodePtr c; /* tmp node */
 887
 888     wrbuf_printf(w, " begin include src=\"%s\" ", src);
 889
 890     /* replace include element with a 'begin' comment */
 891     sib = xmlNewComment((const xmlChar *) wrbuf_cstr(w));
 892     xmlReplaceNode(*np, sib);
 893
 894     xmlFreeNode(*np);
 895
 896     wrbuf_rewind(w);
 897     conf_dir_path(config, w, src);
 898 #if USE_POSIX_GLOB
 899     {
 900         size_t i;
 901         glob_t glob_res;
 902         glob(wrbuf_cstr(w), 0 /* flags */, 0 /* errfunc */, &glob_res);
 903
 904         for (i = 0; ret == 0 && i < glob_res.gl_pathc; i++)
 905         {
 906             const char *path = glob_res.gl_pathv[i];
 907             ret = config_include_one(config, &sib, path);
 908         }
 909         globfree(&glob_res);
 910     }
 911 #else
 912     ret = config_include_one(config, &sib, wrbuf_cstr(w));
 913 #endif
 914     wrbuf_rewind(w);
 915     wrbuf_printf(w, " end include src=\"%s\" ", src);
 916     c = xmlNewComment((const xmlChar *) wrbuf_cstr(w));
 917     sib = xmlAddNextSibling(sib, c);
 918
 919     *np = sib;
 920     wrbuf_destroy(w);
 921     return ret;
 922 }
 923
 924 static int process_config_includes(struct conf_config *config, xmlNode *n)
 925 {
 926     for (; n; n = n->next)
 927     {
 928         if (n->type == XML_ELEMENT_NODE)
 929         {
 930             if (!strcmp((const char *) n->name, "include"))
 931             {
 932                 xmlChar *src = xmlGetProp(n, (xmlChar *) "src");
 933                 if (src)
 934                 {
 935                     int ret = config_include_src(config, &n,
 936                                                  (const char *) src);
 937                     xmlFree(src);
 938                     if (ret)
 939                         return ret;
 940
 941                 }
 942             }
 943             else
 944             {
 945                 if (process_config_includes(config, n->children))
 946                     return -1;
 947             }
 948         }
 949     }
 950     return 0;
 951 }
 952
 953 struct conf_config *config_create(const char *fname, int verbose)
 954 {
 955     xmlDoc *doc = xmlParseFile(fname);
 956     xmlNode *n;
 957     const char *p;
 958     int r;
 959     NMEM nmem = nmem_create();
 960     struct conf_config *config = nmem_malloc(nmem, sizeof(struct conf_config));
 961
 962     xmlSubstituteEntitiesDefault(1);
 963     xmlLoadExtDtdDefaultValue = 1;
 964     if (!doc)
 965     {
 966         yaz_log(YLOG_FATAL, "Failed to read %s", fname);
 967         nmem_destroy(nmem);
 968         return 0;
 969     }
 970
 971     config->nmem = nmem;
 972     config->servers = 0;
 973
 974     config->confdir = wrbuf_alloc();
 975     if ((p = strrchr(fname,
 976 #ifdef WIN32
 977                      '\\'
 978 #else
 979                      '/'
 980 #endif
 981              )))
 982     {
 983         int len = p - fname;
 984         wrbuf_write(config->confdir, fname, len);
 985     }
 986     wrbuf_puts(config->confdir, "");
 987
 988     n = xmlDocGetRootElement(doc);
 989     r = process_config_includes(config, n);
 990     if (r == 0) /* OK */
 991     {
 992         if (verbose)
 993         {
 994             yaz_log(YLOG_LOG, "Configuration %s after include processing",
 995                     fname);
 996             xmlDocFormatDump(yaz_log_file(), doc, 0);
 997         }
 998         r = parse_config(config, n);
 999     }
1000     xmlFreeDoc(doc);
1001
1002     if (r)
1003     {
1004         config_destroy(config);
1005         return 0;
1006     }
1007     return config;
1008 }
1009
1010 void server_destroy(struct conf_server *server)
1011 {
1012     struct conf_service *s = server->service;
1013     while (s)
1014     {
1015         struct conf_service *s_next = s->next;
1016         service_destroy(s);
1017         s = s_next;
1018     }
1019     pp2_charset_destroy(server->relevance_pct);
1020     pp2_charset_destroy(server->sort_pct);
1021     pp2_charset_destroy(server->mergekey_pct);
1022 }
1023
1024 void config_destroy(struct conf_config *config)
1025 {
1026     if (config)
1027     {
1028         struct conf_server *server = config->servers;
1029         while (server)
1030         {
1031             struct conf_server *s_next = server->next;
1032             server_destroy(server);
1033             server = s_next;
1034         }
1035         wrbuf_destroy(config->confdir);
1036         nmem_destroy(config->nmem);
1037     }
1038 }
1039
1040 void config_stop_listeners(struct conf_config *conf)
1041 {
1042     struct conf_server *ser;
1043     for (ser = conf->servers; ser; ser = ser->next)
1044         http_close_server(ser);
1045 }
1046
1047 void config_start_databases(struct conf_config *conf)
1048 {
1049     struct conf_server *ser;
1050     for (ser = conf->servers; ser; ser = ser->next)
1051     {
1052         struct conf_service *s = ser->service;
1053         for (;s ; s = s->next)
1054             resolve_databases(s);
1055     }
1056 }
1057
1058 int config_start_listeners(struct conf_config *conf,
1059                            const char *listener_override)
1060 {
1061     struct conf_server *ser;
1062     for (ser = conf->servers; ser; ser = ser->next)
1063     {
1064         WRBUF w = wrbuf_alloc();
1065         int r;
1066         if (listener_override)
1067         {
1068             wrbuf_puts(w, listener_override);
1069             listener_override = 0; /* only first server is overriden */
1070         }
1071         else
1072         {
1073             if (ser->host)
1074                 wrbuf_puts(w, ser->host);
1075             if (ser->port)
1076             {
1077                 if (wrbuf_len(w))
1078                     wrbuf_puts(w, ":");
1079                 wrbuf_printf(w, "%d", ser->port);
1080             }
1081         }
1082         r = http_init(wrbuf_cstr(w), ser);
1083         wrbuf_destroy(w);
1084         if (r)
1085             return -1;
1086
1087         w = wrbuf_alloc();
1088         if (ser->proxy_host || ser->proxy_port)
1089         {
1090             if (ser->proxy_host)
1091                 wrbuf_puts(w, ser->proxy_host);
1092             if (ser->proxy_port)
1093             {
1094                 if (wrbuf_len(w))
1095                     wrbuf_puts(w, ":");
1096                 wrbuf_printf(w, "%d", ser->proxy_port);
1097             }
1098         }
1099         if (wrbuf_len(w))
1100             http_set_proxyaddr(wrbuf_cstr(w), ser);
1101         wrbuf_destroy(w);
1102     }
1103     return 0;
1104 }
1105
1106 /*
1107  * Local variables:
1108  * c-basic-offset: 4
1109  * c-file-style: "Stroustrup"
1110  * indent-tabs-mode: nil
1111  * End:
1112  * vim: shiftwidth=4 tabstop=8 expandtab
1113  */
1114