src/http_command.c

   1 /* This file is part of Pazpar2.
   2    Copyright (C) 2006-2011 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 #include <stdio.h>
  24 #include <sys/types.h>
  25 #if HAVE_UNISTD_H
  26 #include <unistd.h>
  27 #endif
  28 #include <stdlib.h>
  29 #include <string.h>
  30 #if HAVE_SYS_TIME_H
  31 #include <sys/time.h>
  32 #endif
  33 #include <yaz/snprintf.h>
  34 #include <yaz/yaz-util.h>
  35
  36 #include "ppmutex.h"
  37 #include "eventl.h"
  38 #include "parameters.h"
  39 #include "session.h"
  40 #include "http.h"
  41 #include "settings.h"
  42 #include "client.h"
  43
  44 #ifdef HAVE_MALLINFO
  45 #include <malloc.h>
  46
  47 void print_meminfo(WRBUF wrbuf) {
  48
  49     struct mallinfo minfo;
  50     minfo = mallinfo();
  51     wrbuf_printf(wrbuf, "  <memory>\n"
  52                         "   <arena>%d</arena>\n"
  53                         "   <uordblks>%d</uordblks>\n"
  54                         "   <fordblks>%d</fordblks>\n"
  55                         "   <ordblks>%d</ordblks>\n"
  56                         "   <keepcost>%d</keepcost>\n"
  57                         "   <hblks>%d</hblks>\n"
  58                         "   <hblkhd>%d</hblkhd>\n"
  59                         "   <virt>%d</virt>\n"
  60                         "   <virtuse>%d</virtuse>\n"
  61                         "  </memory>\n",
  62                  minfo.arena, minfo.uordblks, minfo.fordblks,minfo.ordblks, minfo.keepcost, minfo.hblks, minfo.hblkhd, minfo.arena + minfo.hblkhd, minfo.uordblks + minfo.hblkhd);
  63
  64 }
  65 #else
  66 #define print_meminfo(x)
  67 #endif
  68
  69
  70 // Update this when the protocol changes
  71 #define PAZPAR2_PROTOCOL_VERSION "1"
  72
  73 #define HTTP_COMMAND_RESPONSE_PREFIX "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
  74
  75 struct http_session {
  76     IOCHAN timeout_iochan;     // NOTE: This is NOT associated with a socket
  77     struct session *psession;
  78     unsigned int session_id;
  79     int timestamp;
  80     int destroy_counter;
  81     int activity_counter;
  82     NMEM nmem;
  83     http_sessions_t http_sessions;
  84     struct http_session *next;
  85 };
  86
  87 struct http_sessions {
  88     struct http_session *session_list;
  89     YAZ_MUTEX mutex;
  90     int log_level;
  91 };
  92
  93 static YAZ_MUTEX g_http_session_mutex = 0;
  94 static int g_http_sessions = 0;
  95
  96 int http_session_use(int delta)
  97 {
  98     int sessions;
  99     if (!g_http_session_mutex)
 100         yaz_mutex_create(&g_http_session_mutex);
 101     yaz_mutex_enter(g_http_session_mutex);
 102     g_http_sessions += delta;
 103     sessions = g_http_sessions;
 104     yaz_mutex_leave(g_http_session_mutex);
 105     yaz_log(YLOG_DEBUG, "%s sesions=%d", delta == 0 ? "" : (delta > 0 ? "INC" : "DEC"), sessions);
 106     return sessions;
 107
 108 }
 109
 110 http_sessions_t http_sessions_create(void)
 111 {
 112     http_sessions_t hs = xmalloc(sizeof(*hs));
 113     hs->session_list = 0;
 114     hs->mutex = 0;
 115     pazpar2_mutex_create(&hs->mutex, "http_sessions");
 116     hs->log_level = yaz_log_module_level("HTTP");
 117     return hs;
 118 }
 119
 120 void http_sessions_destroy(http_sessions_t hs)
 121 {
 122     if (hs)
 123     {
 124         struct http_session *s = hs->session_list;
 125         while (s)
 126         {
 127             struct http_session *s_next = s->next;
 128             iochan_destroy(s->timeout_iochan);
 129             destroy_session(s->psession);
 130             nmem_destroy(s->nmem);
 131             s = s_next;
 132         }
 133         yaz_mutex_destroy(&hs->mutex);
 134         xfree(hs);
 135     }
 136 }
 137
 138 void http_session_destroy(struct http_session *s);
 139
 140 static void session_timeout(IOCHAN i, int event)
 141 {
 142     struct http_session *s = iochan_getdata(i);
 143     http_session_destroy(s);
 144 }
 145
 146 struct http_session *http_session_create(struct conf_service *service,
 147                                          http_sessions_t http_sessions,
 148                                          unsigned int sesid)
 149 {
 150     NMEM nmem = nmem_create();
 151     struct http_session *r = nmem_malloc(nmem, sizeof(*r));
 152     char tmp_str[50];
 153
 154     sprintf(tmp_str, "session#%u", sesid);
 155     r->psession = new_session(nmem, service, sesid);
 156     r->session_id = sesid;
 157     r->timestamp = 0;
 158     r->nmem = nmem;
 159     r->destroy_counter = r->activity_counter = 0;
 160     r->http_sessions = http_sessions;
 161
 162     yaz_mutex_enter(http_sessions->mutex);
 163     r->next = http_sessions->session_list;
 164     http_sessions->session_list = r;
 165     yaz_mutex_leave(http_sessions->mutex);
 166
 167     r->timeout_iochan = iochan_create(-1, session_timeout, 0, "http_session_timeout");
 168     iochan_setdata(r->timeout_iochan, r);
 169     yaz_log(http_sessions->log_level, "%p Session %u created. timeout chan=%p timeout=%d", r, sesid, r->timeout_iochan, service->session_timeout);
 170     iochan_settimeout(r->timeout_iochan, service->session_timeout);
 171
 172     iochan_add(service->server->iochan_man, r->timeout_iochan);
 173     http_session_use(1);
 174     return r;
 175 }
 176
 177 void http_session_destroy(struct http_session *s)
 178 {
 179     int must_destroy = 0;
 180
 181     http_sessions_t http_sessions = s->http_sessions;
 182
 183     yaz_log(http_sessions->log_level, "%p HTTP Session %u destroyed", s, s->session_id);
 184     yaz_mutex_enter(http_sessions->mutex);
 185     /* only if http_session has no active http sessions on it can be destroyed */
 186     if (s->destroy_counter == s->activity_counter) {
 187         struct http_session **p = 0;
 188         must_destroy = 1;
 189         for (p = &http_sessions->session_list; *p; p = &(*p)->next)
 190             if (*p == s)
 191             {
 192                 *p = (*p)->next;
 193                 break;
 194             }
 195     }
 196     yaz_mutex_leave(http_sessions->mutex);
 197     if (must_destroy)
 198     {   /* destroying for real */
 199         yaz_log(http_sessions->log_level, "%p HTTP Session %u destroyed", s, s->session_id);
 200         iochan_destroy(s->timeout_iochan);
 201         destroy_session(s->psession);
 202         http_session_use(-1);
 203         nmem_destroy(s->nmem);
 204     }
 205     else {
 206         yaz_log(http_sessions->log_level, "%p HTTP Session %u destroyed delayed. Active clients (%d-%d). Waiting for new timeout.",
 207                 s, s->session_id, s->activity_counter, s->destroy_counter);
 208     }
 209
 210 }
 211
 212 static const char *get_msg(enum pazpar2_error_code code)
 213 {
 214     struct pazpar2_error_msg {
 215         enum pazpar2_error_code code;
 216         const char *msg;
 217     };
 218     static const struct pazpar2_error_msg ar[] = {
 219         { PAZPAR2_NO_SESSION, "Session does not exist or it has expired"},
 220         { PAZPAR2_MISSING_PARAMETER, "Missing parameter"},
 221         { PAZPAR2_MALFORMED_PARAMETER_VALUE, "Malformed parameter value"},
 222         { PAZPAR2_MALFORMED_PARAMETER_ENCODING, "Malformed parameter encoding"},
 223         { PAZPAR2_MALFORMED_SETTING, "Malformed setting argument"},
 224         { PAZPAR2_HITCOUNTS_FAILED, "Failed to retrieve hitcounts"},
 225         { PAZPAR2_RECORD_MISSING, "Record missing"},
 226         { PAZPAR2_NO_TARGETS, "No targets"},
 227         { PAZPAR2_CONFIG_TARGET, "Target cannot be configured"},
 228         { PAZPAR2_RECORD_FAIL, "Record command failed"},
 229         { PAZPAR2_NOT_IMPLEMENTED, "Not implemented"},
 230         { PAZPAR2_NO_SERVICE, "No service"},
 231         { PAZPAR2_LAST_ERROR, "Last error"},
 232         { 0, 0 }
 233     };
 234     int i = 0;
 235     while (ar[i].msg)
 236     {
 237         if (code == ar[i].code)
 238             return ar[i].msg;
 239         i++;
 240     }
 241     return "No error";
 242 }
 243
 244 static void error(struct http_response *rs,
 245                   enum pazpar2_error_code code,
 246                   const char *addinfo)
 247 {
 248     struct http_channel *c = rs->channel;
 249     WRBUF text = wrbuf_alloc();
 250     const char *http_status = "417";
 251     const char *msg = get_msg(code);
 252
 253     rs->msg = nmem_strdup(c->nmem, msg);
 254     strcpy(rs->code, http_status);
 255
 256     wrbuf_printf(text, HTTP_COMMAND_RESPONSE_PREFIX "<error code=\"%d\" msg=\"%s\">", (int) code,
 257                msg);
 258     if (addinfo)
 259         wrbuf_xmlputs(text, addinfo);
 260     wrbuf_puts(text, "</error>");
 261
 262     yaz_log(YLOG_WARN, "HTTP %s %s%s%s", http_status,
 263             msg, addinfo ? ": " : "" , addinfo ? addinfo : "");
 264     rs->payload = nmem_strdup(c->nmem, wrbuf_cstr(text));
 265     wrbuf_destroy(text);
 266     http_send_response(c);
 267 }
 268
 269 unsigned int make_sessionid(void)
 270 {
 271     static int seq = 0; /* thread pr */
 272     unsigned int res;
 273
 274     seq++;
 275     if (global_parameters.predictable_sessions)
 276         res = seq;
 277     else
 278     {
 279 #ifdef WIN32
 280         res = seq;
 281 #else
 282         struct timeval t;
 283
 284         if (gettimeofday(&t, 0) < 0)
 285         {
 286             yaz_log(YLOG_WARN|YLOG_ERRNO, "gettimeofday");
 287             exit(1);
 288         }
 289         /* at most 256 sessions per second ..
 290            (long long would be more appropriate)*/
 291         res = t.tv_sec;
 292         res = ((res << 8) | (seq & 0xff)) & ((1U << 31) - 1);
 293 #endif
 294     }
 295     return res;
 296 }
 297
 298 static struct http_session *locate_session(struct http_channel *c)
 299 {
 300     struct http_response *rs = c->response;
 301     struct http_request *rq = c->request;
 302     struct http_session *p;
 303     const char *session = http_argbyname(rq, "session");
 304     http_sessions_t http_sessions = c->http_sessions;
 305     unsigned int id;
 306
 307     if (!session)
 308     {
 309         error(rs, PAZPAR2_MISSING_PARAMETER, "session");
 310         return 0;
 311     }
 312     id = atoi(session);
 313     yaz_mutex_enter(http_sessions->mutex);
 314     for (p = http_sessions->session_list; p; p = p->next)
 315         if (id == p->session_id)
 316             break;
 317     if (p)
 318         p->activity_counter++;
 319     yaz_mutex_leave(http_sessions->mutex);
 320     if (p)
 321         iochan_activity(p->timeout_iochan);
 322     else
 323         error(rs, PAZPAR2_NO_SESSION, session);
 324     return p;
 325 }
 326
 327 // Call after use of locate_session, in order to increment the destroy_counter
 328 static void release_session(struct http_channel *c, struct http_session *session) {
 329     http_sessions_t http_sessions = c->http_sessions;
 330     yaz_mutex_enter(http_sessions->mutex);
 331     if (session)
 332         session->destroy_counter++;
 333     yaz_mutex_leave(http_sessions->mutex);
 334 }
 335
 336 // Decode settings parameters and apply to session
 337 // Syntax: setting[target]=value
 338 static int process_settings(struct session *se, struct http_request *rq,
 339                             struct http_response *rs)
 340 {
 341     struct http_argument *a;
 342
 343     for (a = rq->arguments; a; a = a->next)
 344         if (strchr(a->name, '['))
 345         {
 346             char **res;
 347             int num;
 348             char *dbname;
 349             char *setting;
 350
 351             // Nmem_strsplit *rules*!!!
 352             nmem_strsplit(se->session_nmem, "[]", a->name, &res, &num);
 353             if (num != 2)
 354             {
 355                 error(rs, PAZPAR2_MALFORMED_SETTING, a->name);
 356                 return -1;
 357             }
 358             setting = res[0];
 359             dbname = res[1];
 360             session_apply_setting(se, dbname, setting,
 361                     nmem_strdup(se->session_nmem, a->value));
 362         }
 363     return 0;
 364 }
 365
 366 static void cmd_exit(struct http_channel *c)
 367 {
 368     char buf[1024];
 369     struct http_response *rs = c->response;
 370     yaz_log(YLOG_WARN, "exit");
 371     sprintf(buf, HTTP_COMMAND_RESPONSE_PREFIX "<exit><status>OK</status></exit>");
 372     rs->payload = nmem_strdup(c->nmem, buf);
 373     http_send_response(c);
 374     http_close_server(c->server);
 375 }
 376
 377 static void cmd_init(struct http_channel *c)
 378 {
 379     char buf[1024];
 380     struct http_request *r = c->request;
 381     const char *clear = http_argbyname(r, "clear");
 382     const char *content_type = http_lookup_header(r->headers, "Content-Type");
 383     unsigned int sesid;
 384     struct http_session *s;
 385     struct http_response *rs = c->response;
 386     struct conf_service *service = 0; /* no service (yet) */
 387
 388     if (r->content_len && content_type &&
 389         !yaz_strcmp_del("text/xml", content_type, "; "))
 390     {
 391         xmlDoc *doc = xmlParseMemory(r->content_buf, r->content_len);
 392         xmlNode *root_n;
 393         if (!doc)
 394         {
 395             error(rs, PAZPAR2_MALFORMED_SETTING, 0);
 396             return;
 397         }
 398         root_n = xmlDocGetRootElement(doc);
 399         service = service_create(c->server, root_n);
 400         xmlFreeDoc(doc);
 401         if (!service)
 402         {
 403             error(rs, PAZPAR2_MALFORMED_SETTING, 0);
 404             return;
 405         }
 406     }
 407
 408     if (!service)
 409     {
 410         const char *service_name = http_argbyname(c->request, "service");
 411         service = locate_service(c->server, service_name);
 412         if (!service)
 413         {
 414             error(rs, PAZPAR2_NO_SERVICE, service_name ? service_name : "unnamed");
 415             return;
 416         }
 417     }
 418     sesid = make_sessionid();
 419     s = http_session_create(service, c->http_sessions, sesid);
 420
 421     yaz_log(c->http_sessions->log_level, "%p Session init %u ", s, sesid);
 422     if (!clear || *clear == '0')
 423         session_init_databases(s->psession);
 424     else
 425         yaz_log(YLOG_LOG, "HTTP Session %u init: No databases preloaded", sesid);
 426
 427     if (process_settings(s->psession, c->request, c->response) < 0)
 428         return;
 429
 430     sprintf(buf, HTTP_COMMAND_RESPONSE_PREFIX
 431             "<init><status>OK</status><session>%d", sesid);
 432     if (c->server->server_id)
 433     {
 434         strcat(buf, ".");
 435         strcat(buf, c->server->server_id);
 436     }
 437     strcat(buf, "</session>"
 438            "<protocol>" PAZPAR2_PROTOCOL_VERSION "</protocol></init>");
 439     rs->payload = nmem_strdup(c->nmem, buf);
 440     http_send_response(c);
 441 }
 442
 443 static void apply_local_setting(void *client_data,
 444                                 struct setting *set)
 445 {
 446     struct session *se =  (struct session *) client_data;
 447
 448     session_apply_setting(se, nmem_strdup(se->session_nmem, set->target),
 449                           nmem_strdup(se->session_nmem, set->name),
 450                           nmem_strdup(se->session_nmem, set->value));
 451 }
 452
 453 static void cmd_settings(struct http_channel *c)
 454 {
 455     struct http_response *rs = c->response;
 456     struct http_request *rq = c->request;
 457     struct http_session *s = locate_session(c);
 458     const char *content_type = http_lookup_header(rq->headers, "Content-Type");
 459
 460     if (!s)
 461         return;
 462
 463     if (rq->content_len && content_type &&
 464         !yaz_strcmp_del("text/xml", content_type, "; "))
 465     {
 466         xmlDoc *doc = xmlParseMemory(rq->content_buf, rq->content_len);
 467         xmlNode *root_n;
 468         if (!doc)
 469         {
 470             error(rs, PAZPAR2_MALFORMED_SETTING, 0);
 471             return;
 472         }
 473         root_n = xmlDocGetRootElement(doc);
 474
 475         settings_read_node_x(root_n, s->psession, apply_local_setting);
 476
 477         xmlFreeDoc(doc);
 478     }
 479     if (process_settings(s->psession, rq, rs) < 0) {
 480         release_session(c,s);
 481         return;
 482     }
 483     rs->payload = HTTP_COMMAND_RESPONSE_PREFIX "<settings><status>OK</status></settings>";
 484     http_send_response(c);
 485     release_session(c,s);
 486 }
 487
 488 // Compares two hitsbytarget nodes by hitcount
 489 static int cmp_ht(const void *p1, const void *p2)
 490 {
 491     const struct hitsbytarget *h1 = p1;
 492     const struct hitsbytarget *h2 = p2;
 493     return h2->hits - h1->hits;
 494 }
 495
 496 // This implements functionality somewhat similar to 'bytarget', but in a termlist form
 497 static int targets_termlist(WRBUF wrbuf, struct session *se, int num,
 498                              NMEM nmem)
 499 {
 500     struct hitsbytarget *ht;
 501     int count, i;
 502
 503     ht = hitsbytarget(se, &count, nmem);
 504     qsort(ht, count, sizeof(struct hitsbytarget), cmp_ht);
 505     for (i = 0; i < count && i < num && ht[i].hits > 0; i++)
 506     {
 507
 508         // do only print terms which have display names
 509
 510         wrbuf_puts(wrbuf, "<term>\n");
 511
 512         wrbuf_puts(wrbuf, "<id>");
 513         wrbuf_xmlputs(wrbuf, ht[i].id);
 514         wrbuf_puts(wrbuf, "</id>\n");
 515
 516         wrbuf_puts(wrbuf, "<name>");
 517         if (!ht[i].name || !ht[i].name[0])
 518             wrbuf_xmlputs(wrbuf, "NO TARGET NAME");
 519         else
 520             wrbuf_xmlputs(wrbuf, ht[i].name);
 521         wrbuf_puts(wrbuf, "</name>\n");
 522
 523         wrbuf_printf(wrbuf, "<frequency>" ODR_INT_PRINTF "</frequency>\n",
 524                      ht[i].hits);
 525
 526         wrbuf_puts(wrbuf, "<state>");
 527         wrbuf_xmlputs(wrbuf, ht[i].state);
 528         wrbuf_puts(wrbuf, "</state>\n");
 529
 530         wrbuf_printf(wrbuf, "<diagnostic>%d</diagnostic>\n",
 531                      ht[i].diagnostic);
 532         wrbuf_puts(wrbuf, "</term>\n");
 533     }
 534     return count;
 535 }
 536
 537 static void cmd_termlist(struct http_channel *c)
 538 {
 539     struct http_response *rs = c->response;
 540     struct http_request *rq = c->request;
 541     struct http_session *s = locate_session(c);
 542     const char *name = http_argbyname(rq, "name");
 543     const char *nums = http_argbyname(rq, "num");
 544     int num = 15;
 545     int status;
 546     WRBUF debug_log = wrbuf_alloc();
 547
 548     if (!s)
 549         return;
 550
 551     status = session_active_clients(s->psession);
 552
 553     if (!name)
 554         name = "subject";
 555     if (strlen(name) > 255)
 556         return;
 557     if (nums)
 558         num = atoi(nums);
 559
 560     wrbuf_rewind(c->wrbuf);
 561
 562     wrbuf_puts(c->wrbuf, "<termlist>\n");
 563     wrbuf_printf(c->wrbuf, "<activeclients>%d</activeclients>\n", status);
 564     while (*name)
 565     {
 566         char tname[256];
 567         const char *tp;
 568
 569         if (!(tp = strchr(name, ',')))
 570             tp = name + strlen(name);
 571         strncpy(tname, name, tp - name);
 572         tname[tp - name] = '\0';
 573         wrbuf_puts(c->wrbuf, "<list name=\"");
 574         wrbuf_xmlputs(c->wrbuf, tname);
 575         wrbuf_puts(c->wrbuf, "\">\n");
 576         if (!strcmp(tname, "xtargets")) {
 577             int targets = targets_termlist(c->wrbuf, s->psession, num, c->nmem);
 578             wrbuf_printf(debug_log, " xtargets: %d", targets);
 579         }
 580         else
 581         {
 582             int len;
 583             struct termlist_score **p =
 584                 get_termlist_score(s->psession, tname, &len);
 585             if (p && len)
 586                 wrbuf_printf(debug_log, " %s: %d", tname, len);
 587             if (p) {
 588                 int i;
 589                 for (i = 0; i < len && i < num; i++){
 590                     // prevnt sending empty term elements
 591                     if (!p[i]->term || !p[i]->term[0])
 592                         continue;
 593
 594                     wrbuf_puts(c->wrbuf, "<term>");
 595                     wrbuf_puts(c->wrbuf, "<name>");
 596                     wrbuf_xmlputs(c->wrbuf, p[i]->term);
 597                     wrbuf_puts(c->wrbuf, "</name>");
 598
 599                     wrbuf_printf(c->wrbuf,
 600                                  "<frequency>%d</frequency>",
 601                                  p[i]->frequency);
 602                     wrbuf_puts(c->wrbuf, "</term>\n");
 603                }
 604             }
 605         }
 606         wrbuf_puts(c->wrbuf, "</list>\n");
 607         name = tp;
 608         if (*name == ',')
 609             name++;
 610     }
 611     wrbuf_puts(c->wrbuf, "</termlist>\n");
 612     yaz_log(YLOG_DEBUG, "termlist response: %s ", wrbuf_cstr(debug_log));
 613     wrbuf_destroy(debug_log);
 614     rs->payload = nmem_strdup(rq->channel->nmem, wrbuf_cstr(c->wrbuf));
 615     http_send_response(c);
 616     release_session(c,s);
 617 }
 618
 619 size_t session_get_memory_status(struct session *session);
 620
 621 static void session_status(struct http_channel *c, struct http_session *s)
 622 {
 623     size_t session_nmem;
 624     wrbuf_printf(c->wrbuf, "<http_count>%u</http_count>\n", s->activity_counter);
 625     wrbuf_printf(c->wrbuf, "<http_nmem>%zu</http_nmem>\n", nmem_total(s->nmem) );
 626     session_nmem = session_get_memory_status(s->psession);
 627     wrbuf_printf(c->wrbuf, "<session_nmem>%zu</session_nmem>\n", session_nmem);
 628 }
 629
 630 static void cmd_session_status(struct http_channel *c) {
 631     struct http_response *rs = c->response;
 632     struct http_session *s = locate_session(c);
 633     if (!s)
 634         return;
 635
 636     wrbuf_rewind(c->wrbuf);
 637     wrbuf_puts(c->wrbuf, HTTP_COMMAND_RESPONSE_PREFIX "<sessionstatus><status>OK</status>\n");
 638     session_status(c, s);
 639     wrbuf_puts(c->wrbuf, "</sessionstatus>\n");
 640     rs->payload = nmem_strdup(c->nmem, wrbuf_cstr(c->wrbuf));
 641     http_send_response(c);
 642     release_session(c,s);
 643
 644 }
 645
 646 int sessions_count(void);
 647 int clients_count(void);
 648 #ifdef HAVE_RESULTSETS_COUNT
 649 int resultsets_count(void);
 650 #else
 651 #define resultsets_count()      0
 652 #endif
 653
 654 static void cmd_server_status(struct http_channel *c)
 655 {
 656     struct http_response *rs = c->response;
 657     int sessions   = sessions_count();
 658     int clients    = clients_count();
 659     int resultsets = resultsets_count();
 660     wrbuf_rewind(c->wrbuf);
 661     wrbuf_puts(c->wrbuf, HTTP_COMMAND_RESPONSE_PREFIX "<server-status>\n");
 662     wrbuf_printf(c->wrbuf, "  <sessions>%u</sessions>\n", sessions);
 663     wrbuf_printf(c->wrbuf, "  <clients>%u</clients>\n",   clients);
 664     /* Only works if yaz has been compiled with enabling of this */
 665     wrbuf_printf(c->wrbuf, "  <resultsets>%u</resultsets>\n",resultsets);
 666     print_meminfo(c->wrbuf);
 667
 668 /* TODO add all sessions status                         */
 669 /*    http_sessions_t http_sessions = c->http_sessions; */
 670 /*    struct http_session *p;                           */
 671 /*
 672     yaz_mutex_enter(http_sessions->mutex);
 673     for (p = http_sessions->session_list; p; p = p->next) {
 674         p->activity_counter++;
 675         wrbuf_puts(c->wrbuf, "<session-status>\n");
 676         wrbuf_printf(c->wrbuf, "<id>%s</id>\n", p->session_id);
 677         yaz_mutex_leave(http_sessions->mutex);
 678         session_status(c, p);
 679         wrbuf_puts(c->wrbuf, "</session-status>\n");
 680         yaz_mutex_enter(http_sessions->mutex);
 681         p->activity_counter--;
 682     }
 683     yaz_mutex_leave(http_sessions->mutex);
 684 */
 685     wrbuf_puts(c->wrbuf, "</server-status>\n");
 686     rs->payload = nmem_strdup(c->nmem, wrbuf_cstr(c->wrbuf));
 687     http_send_response(c);
 688     xmalloc_trav(0);
 689 }
 690
 691
 692 static void cmd_bytarget(struct http_channel *c)
 693 {
 694     struct http_response *rs = c->response;
 695     struct http_request *rq = c->request;
 696     struct http_session *s = locate_session(c);
 697     struct hitsbytarget *ht;
 698     const char *settings = http_argbyname(rq, "settings");
 699     int count, i;
 700
 701     if (!s)
 702         return;
 703     ht = hitsbytarget(s->psession, &count, c->nmem);
 704     wrbuf_rewind(c->wrbuf);
 705     wrbuf_puts(c->wrbuf, HTTP_COMMAND_RESPONSE_PREFIX "<bytarget><status>OK</status>");
 706
 707     for (i = 0; i < count; i++)
 708     {
 709         wrbuf_puts(c->wrbuf, "\n<target>");
 710
 711         wrbuf_puts(c->wrbuf, "<id>");
 712         wrbuf_xmlputs(c->wrbuf, ht[i].id);
 713         wrbuf_puts(c->wrbuf, "</id>\n");
 714
 715         if (ht[i].name && ht[i].name[0])
 716         {
 717             wrbuf_puts(c->wrbuf, "<name>");
 718             wrbuf_xmlputs(c->wrbuf, ht[i].name);
 719             wrbuf_puts(c->wrbuf, "</name>\n");
 720         }
 721
 722         wrbuf_printf(c->wrbuf, "<hits>" ODR_INT_PRINTF "</hits>\n", ht[i].hits);
 723         wrbuf_printf(c->wrbuf, "<diagnostic>%d</diagnostic>\n", ht[i].diagnostic);
 724         wrbuf_printf(c->wrbuf, "<records>%d</records>\n", ht[i].records);
 725
 726         wrbuf_puts(c->wrbuf, "<state>");
 727         wrbuf_xmlputs(c->wrbuf, ht[i].state);
 728         wrbuf_puts(c->wrbuf, "</state>\n");
 729         if (settings && *settings == '1')
 730         {
 731             wrbuf_puts(c->wrbuf, "<settings>\n");
 732             wrbuf_puts(c->wrbuf, ht[i].settings_xml);
 733             wrbuf_puts(c->wrbuf, "</settings>\n");
 734         }
 735         wrbuf_puts(c->wrbuf, "</target>");
 736     }
 737
 738     wrbuf_puts(c->wrbuf, "</bytarget>");
 739     rs->payload = nmem_strdup(c->nmem, wrbuf_cstr(c->wrbuf));
 740     http_send_response(c);
 741     release_session(c,s);
 742 }
 743
 744 static void write_metadata(WRBUF w, struct conf_service *service,
 745         struct record_metadata **ml, int full)
 746 {
 747     int imeta;
 748
 749     for (imeta = 0; imeta < service->num_metadata; imeta++)
 750     {
 751         struct conf_metadata *cmd = &service->metadata[imeta];
 752         struct record_metadata *md;
 753         if (!cmd->brief && !full)
 754             continue;
 755         for (md = ml[imeta]; md; md = md->next)
 756         {
 757             struct record_metadata_attr *attr = md->attributes;
 758             wrbuf_printf(w, "\n<md-%s", cmd->name);
 759
 760             for (; attr; attr = attr->next)
 761             {
 762                 wrbuf_printf(w, " %s=\"", attr->name);
 763                 wrbuf_xmlputs(w, attr->value);
 764                 wrbuf_puts(w, "\"");
 765             }
 766             wrbuf_puts(w, ">");
 767             switch (cmd->type)
 768             {
 769                 case Metadata_type_generic:
 770                     wrbuf_xmlputs(w, md->data.text.disp);
 771                     break;
 772                 case Metadata_type_year:
 773                     wrbuf_printf(w, "%d", md->data.number.min);
 774                     if (md->data.number.min != md->data.number.max)
 775                         wrbuf_printf(w, "-%d", md->data.number.max);
 776                     break;
 777                 default:
 778                     wrbuf_puts(w, "[can't represent]");
 779             }
 780             wrbuf_printf(w, "</md-%s>", cmd->name);
 781         }
 782     }
 783 }
 784
 785 static void write_subrecord(struct record *r, WRBUF w,
 786         struct conf_service *service, int show_details)
 787 {
 788     const char *name = session_setting_oneval(
 789         client_get_database(r->client), PZ_NAME);
 790
 791     wrbuf_puts(w, "<location id=\"");
 792     wrbuf_xmlputs(w, client_get_database(r->client)->database->url);
 793     wrbuf_puts(w, "\" ");
 794
 795     wrbuf_puts(w, "name=\"");
 796     wrbuf_xmlputs(w,  *name ? name : "Unknown");
 797     wrbuf_puts(w, "\">");
 798
 799     write_metadata(w, service, r->metadata, show_details);
 800     wrbuf_puts(w, "</location>\n");
 801 }
 802
 803 static void show_raw_record_error(void *data, const char *addinfo)
 804 {
 805     http_channel_observer_t obs = data;
 806     struct http_channel *c = http_channel_observer_chan(obs);
 807     struct http_response *rs = c->response;
 808
 809     http_remove_observer(obs);
 810
 811     error(rs, PAZPAR2_RECORD_FAIL, addinfo);
 812 }
 813
 814 static void show_raw_record_ok(void *data, const char *buf, size_t sz)
 815 {
 816     http_channel_observer_t obs = data;
 817     struct http_channel *c = http_channel_observer_chan(obs);
 818     struct http_response *rs = c->response;
 819
 820     http_remove_observer(obs);
 821
 822     wrbuf_write(c->wrbuf, buf, sz);
 823     rs->payload = nmem_strdup(c->nmem, wrbuf_cstr(c->wrbuf));
 824     http_send_response(c);
 825 }
 826
 827
 828 static void show_raw_record_ok_binary(void *data, const char *buf, size_t sz)
 829 {
 830     http_channel_observer_t obs = data;
 831     struct http_channel *c = http_channel_observer_chan(obs);
 832     struct http_response *rs = c->response;
 833
 834     http_remove_observer(obs);
 835
 836     wrbuf_write(c->wrbuf, buf, sz);
 837     rs->payload = nmem_strdup(c->nmem, wrbuf_cstr(c->wrbuf));
 838
 839     rs->content_type = "application/octet-stream";
 840     http_send_response(c);
 841 }
 842
 843
 844 void show_raw_reset(void *data, struct http_channel *c, void *data2)
 845 {
 846     //struct client *client = data;
 847     //client_show_raw_remove(client, data2);
 848 }
 849
 850 static void cmd_record_ready(void *data);
 851
 852 static void cmd_record(struct http_channel *c)
 853 {
 854     struct http_response *rs = c->response;
 855     struct http_request *rq = c->request;
 856     struct http_session *s = locate_session(c);
 857     struct record_cluster *rec, *prev_r, *next_r;
 858     struct record *r;
 859     struct conf_service *service;
 860     const char *idstr = http_argbyname(rq, "id");
 861     const char *offsetstr = http_argbyname(rq, "offset");
 862     const char *binarystr = http_argbyname(rq, "binary");
 863
 864     if (!s)
 865         return;
 866     service = s->psession->service;
 867     if (!idstr)
 868     {
 869         error(rs, PAZPAR2_MISSING_PARAMETER, "id");
 870         return;
 871     }
 872     wrbuf_rewind(c->wrbuf);
 873     if (!(rec = show_single_start(s->psession, idstr, &prev_r, &next_r)))
 874     {
 875         if (session_active_clients(s->psession) == 0)
 876         {
 877             error(rs, PAZPAR2_RECORD_MISSING, idstr);
 878         }
 879         else if (session_set_watch(s->psession, SESSION_WATCH_RECORD,
 880                               cmd_record_ready, c, c) != 0)
 881         {
 882             error(rs, PAZPAR2_RECORD_MISSING, idstr);
 883         }
 884         release_session(c, s);
 885         return;
 886     }
 887     if (offsetstr)
 888     {
 889         int offset = atoi(offsetstr);
 890         const char *syntax = http_argbyname(rq, "syntax");
 891         const char *esn = http_argbyname(rq, "esn");
 892         int i;
 893         struct record*r = rec->records;
 894         int binary = 0;
 895
 896         if (binarystr && *binarystr != '0')
 897             binary = 1;
 898
 899         for (i = 0; i < offset && r; r = r->next, i++)
 900             ;
 901         if (!r)
 902         {
 903             error(rs, PAZPAR2_RECORD_FAIL, "no record at offset given");
 904         }
 905         else
 906         {
 907             http_channel_observer_t obs =
 908                 http_add_observer(c, r->client, show_raw_reset);
 909             int ret = client_show_raw_begin(r->client, r->position,
 910                                         syntax, esn,
 911                                         obs /* data */,
 912                                         show_raw_record_error,
 913                                         (binary ?
 914                                          show_raw_record_ok_binary :
 915                                          show_raw_record_ok),
 916                                         (binary ? 1 : 0));
 917             if (ret == -1)
 918             {
 919                 http_remove_observer(obs);
 920                 error(rs, PAZPAR2_NO_SESSION, 0);
 921             }
 922         }
 923     }
 924     else
 925     {
 926         wrbuf_puts(c->wrbuf, HTTP_COMMAND_RESPONSE_PREFIX "<record>\n");
 927         wrbuf_puts(c->wrbuf, "<recid>");
 928         wrbuf_xmlputs(c->wrbuf, rec->recid);
 929         wrbuf_puts(c->wrbuf, "</recid>\n");
 930         if (prev_r)
 931         {
 932             wrbuf_puts(c->wrbuf, "<prevrecid>");
 933             wrbuf_xmlputs(c->wrbuf, prev_r->recid);
 934             wrbuf_puts(c->wrbuf, "</prevrecid>\n");
 935         }
 936         if (next_r)
 937         {
 938             wrbuf_puts(c->wrbuf, "<nextrecid>");
 939             wrbuf_xmlputs(c->wrbuf, next_r->recid);
 940             wrbuf_puts(c->wrbuf, "</nextrecid>\n");
 941         }
 942         wrbuf_printf(c->wrbuf, "<activeclients>%d</activeclients>\n",
 943                      session_active_clients(s->psession));
 944         write_metadata(c->wrbuf, service, rec->metadata, 1);
 945         for (r = rec->records; r; r = r->next)
 946             write_subrecord(r, c->wrbuf, service, 1);
 947         wrbuf_puts(c->wrbuf, "</record>\n");
 948         rs->payload = nmem_strdup(c->nmem, wrbuf_cstr(c->wrbuf));
 949         http_send_response(c);
 950     }
 951     show_single_stop(s->psession, rec);
 952     release_session(c, s);
 953 }
 954
 955 static void cmd_record_ready(void *data)
 956 {
 957     struct http_channel *c = (struct http_channel *) data;
 958
 959     cmd_record(c);
 960 }
 961
 962 static void show_records(struct http_channel *c, int active)
 963 {
 964     struct http_request *rq = c->request;
 965     struct http_response *rs = c->response;
 966     struct http_session *s = locate_session(c);
 967     struct record_cluster **rl;
 968     struct reclist_sortparms *sp;
 969     const char *start = http_argbyname(rq, "start");
 970     const char *num = http_argbyname(rq, "num");
 971     const char *sort = http_argbyname(rq, "sort");
 972     int startn = 0;
 973     int numn = 20;
 974     int total;
 975     Odr_int total_hits;
 976     int i;
 977
 978     if (!s)
 979         return;
 980
 981     // We haven't counted clients yet if we're called on a block release
 982     if (active < 0)
 983         active = session_active_clients(s->psession);
 984
 985     if (start)
 986         startn = atoi(start);
 987     if (num)
 988         numn = atoi(num);
 989     if (!sort)
 990         sort = "relevance";
 991     if (!(sp = reclist_parse_sortparms(c->nmem, sort, s->psession->service)))
 992     {
 993         error(rs, PAZPAR2_MALFORMED_PARAMETER_VALUE, "sort");
 994         release_session(c, s);
 995         return;
 996     }
 997
 998
 999     rl = show_range_start(s->psession, sp, startn, &numn, &total, &total_hits);
1000
1001     wrbuf_rewind(c->wrbuf);
1002     wrbuf_puts(c->wrbuf, HTTP_COMMAND_RESPONSE_PREFIX "<show>\n<status>OK</status>\n");
1003     wrbuf_printf(c->wrbuf, "<activeclients>%d</activeclients>\n", active);
1004     wrbuf_printf(c->wrbuf, "<merged>%d</merged>\n", total);
1005     wrbuf_printf(c->wrbuf, "<total>" ODR_INT_PRINTF "</total>\n", total_hits);
1006     wrbuf_printf(c->wrbuf, "<start>%d</start>\n", startn);
1007     wrbuf_printf(c->wrbuf, "<num>%d</num>\n", numn);
1008
1009     for (i = 0; i < numn; i++)
1010     {
1011         int ccount;
1012         struct record *p;
1013         struct record_cluster *rec = rl[i];
1014         struct conf_service *service = s->psession->service;
1015
1016         wrbuf_puts(c->wrbuf, "<hit>\n");
1017         write_metadata(c->wrbuf, service, rec->metadata, 0);
1018         for (ccount = 0, p = rl[i]->records; p;  p = p->next, ccount++)
1019             write_subrecord(p, c->wrbuf, service, 0); // subrecs w/o details
1020         if (ccount > 1)
1021             wrbuf_printf(c->wrbuf, "<count>%d</count>\n", ccount);
1022         if (strstr(sort, "relevance"))
1023             wrbuf_printf(c->wrbuf, "<relevance>%d</relevance>\n",
1024                          rec->relevance_score);
1025         wrbuf_puts(c->wrbuf, "<recid>");
1026         wrbuf_xmlputs(c->wrbuf, rec->recid);
1027         wrbuf_puts(c->wrbuf, "</recid>\n");
1028         wrbuf_puts(c->wrbuf, "</hit>\n");
1029     }
1030
1031     show_range_stop(s->psession, rl);
1032
1033     wrbuf_puts(c->wrbuf, "</show>\n");
1034     rs->payload = nmem_strdup(c->nmem, wrbuf_cstr(c->wrbuf));
1035     http_send_response(c);
1036     release_session(c, s);
1037 }
1038
1039 static void show_records_ready(void *data)
1040 {
1041     struct http_channel *c = (struct http_channel *) data;
1042
1043     show_records(c, -1);
1044 }
1045
1046 static void cmd_show(struct http_channel *c)
1047 {
1048     struct http_request *rq = c->request;
1049     struct http_session *s = locate_session(c);
1050     const char *block = http_argbyname(rq, "block");
1051     int status;
1052
1053     if (!s)
1054         return;
1055
1056     status = session_active_clients(s->psession);
1057
1058     if (block)
1059     {
1060         if (!strcmp(block, "preferred") && !session_is_preferred_clients_ready(s->psession) && reclist_get_num_records(s->psession->reclist) == 0) {
1061             // if there is already a watch/block. we do not block this one
1062             if (session_set_watch(s->psession, SESSION_WATCH_SHOW_PREF,
1063                                   show_records_ready, c, c) != 0)
1064             {
1065                 yaz_log(c->http_sessions->log_level,
1066                         "%p Session %u: Blocking on cmd_show. Waiting for preferred targets", s, s->session_id);
1067             }
1068             release_session(c,s);
1069             return;
1070
1071         }
1072         else if (status && reclist_get_num_records(s->psession->reclist) == 0)
1073         {
1074             // if there is already a watch/block. we do not block this one
1075             if (session_set_watch(s->psession, SESSION_WATCH_SHOW,
1076                                   show_records_ready, c, c) != 0)
1077             {
1078                 yaz_log(c->http_sessions->log_level, "%p Session %u: Blocking on cmd_show", s, s->session_id);
1079             }
1080             release_session(c,s);
1081             return;
1082         }
1083     }
1084     show_records(c, status);
1085     release_session(c,s);
1086 }
1087
1088 static void cmd_ping(struct http_channel *c)
1089 {
1090     struct http_response *rs = c->response;
1091     struct http_session *s = locate_session(c);
1092     if (!s)
1093         return;
1094     rs->payload = HTTP_COMMAND_RESPONSE_PREFIX "<ping><status>OK</status></ping>";
1095     http_send_response(c);
1096     release_session(c, s);
1097 }
1098
1099 static void cmd_search(struct http_channel *c)
1100 {
1101     struct http_request *rq = c->request;
1102     struct http_response *rs = c->response;
1103     struct http_session *s = locate_session(c);
1104     const char *query = http_argbyname(rq, "query");
1105     const char *filter = http_argbyname(rq, "filter");
1106     const char *maxrecs = http_argbyname(rq, "maxrecs");
1107     const char *startrecs = http_argbyname(rq, "startrecs");
1108     enum pazpar2_error_code code;
1109     const char *addinfo = 0;
1110
1111     if (!s)
1112         return;
1113     if (!query)
1114     {
1115         error(rs, PAZPAR2_MISSING_PARAMETER, "query");
1116         release_session(c,s);
1117         return;
1118     }
1119     if (!yaz_utf8_check(query))
1120     {
1121         error(rs, PAZPAR2_MALFORMED_PARAMETER_ENCODING, "query");
1122         release_session(c,s);
1123         return;
1124     }
1125     code = search(s->psession, query, startrecs, maxrecs, filter, &addinfo);
1126     if (code)
1127     {
1128         error(rs, code, addinfo);
1129         release_session(c,s);
1130         return;
1131     }
1132     rs->payload = HTTP_COMMAND_RESPONSE_PREFIX "<search><status>OK</status></search>";
1133     http_send_response(c);
1134     release_session(c,s);
1135 }
1136
1137
1138 static void cmd_stat(struct http_channel *c)
1139 {
1140     struct http_response *rs = c->response;
1141     struct http_session *s = locate_session(c);
1142     struct statistics stat;
1143     int clients;
1144
1145     float progress = 0;
1146
1147     if (!s)
1148         return;
1149
1150     clients = session_active_clients(s->psession);
1151     statistics(s->psession, &stat);
1152
1153     if (stat.num_clients > 0) {
1154         progress = (stat.num_clients  - clients) / (float)stat.num_clients;
1155     }
1156
1157     wrbuf_rewind(c->wrbuf);
1158     wrbuf_puts(c->wrbuf, HTTP_COMMAND_RESPONSE_PREFIX "<stat>");
1159     wrbuf_printf(c->wrbuf, "<activeclients>%d</activeclients>\n", clients);
1160     wrbuf_printf(c->wrbuf, "<hits>" ODR_INT_PRINTF "</hits>\n", stat.num_hits);
1161     wrbuf_printf(c->wrbuf, "<records>%d</records>\n", stat.num_records);
1162     wrbuf_printf(c->wrbuf, "<clients>%d</clients>\n", stat.num_clients);
1163     wrbuf_printf(c->wrbuf, "<unconnected>%d</unconnected>\n", stat.num_no_connection);
1164     wrbuf_printf(c->wrbuf, "<connecting>%d</connecting>\n", stat.num_connecting);
1165     wrbuf_printf(c->wrbuf, "<working>%d</working>\n", stat.num_working);
1166     wrbuf_printf(c->wrbuf, "<idle>%d</idle>\n", stat.num_idle);
1167     wrbuf_printf(c->wrbuf, "<failed>%d</failed>\n", stat.num_failed);
1168     wrbuf_printf(c->wrbuf, "<error>%d</error>\n", stat.num_error);
1169     wrbuf_printf(c->wrbuf, "<progress>%.2f</progress>\n", progress);
1170     wrbuf_puts(c->wrbuf, "</stat>");
1171     rs->payload = nmem_strdup(c->nmem, wrbuf_cstr(c->wrbuf));
1172     http_send_response(c);
1173     release_session(c,s);
1174 }
1175
1176 static void cmd_info(struct http_channel *c)
1177 {
1178     char yaz_version_str[20];
1179     struct http_response *rs = c->response;
1180
1181     wrbuf_rewind(c->wrbuf);
1182     wrbuf_puts(c->wrbuf, HTTP_COMMAND_RESPONSE_PREFIX "<info>\n");
1183     wrbuf_puts(c->wrbuf, " <version>\n");
1184     wrbuf_puts(c->wrbuf, "  <pazpar2");
1185 #ifdef PAZPAR2_VERSION_SHA1
1186     wrbuf_printf(c->wrbuf, " sha1=\"%s\"", PAZPAR2_VERSION_SHA1);
1187 #endif
1188     wrbuf_puts(c->wrbuf, ">");
1189     wrbuf_xmlputs(c->wrbuf, VERSION);
1190     wrbuf_puts(c->wrbuf, "</pazpar2>");
1191
1192
1193     yaz_version(yaz_version_str, 0);
1194     wrbuf_puts(c->wrbuf, "  <yaz compiled=\"");
1195     wrbuf_xmlputs(c->wrbuf, YAZ_VERSION);
1196     wrbuf_puts(c->wrbuf, "\">");
1197     wrbuf_xmlputs(c->wrbuf, yaz_version_str);
1198     wrbuf_puts(c->wrbuf, "</yaz>\n");
1199
1200     wrbuf_puts(c->wrbuf, " </version>\n");
1201
1202     info_services(c->server, c->wrbuf);
1203
1204     wrbuf_puts(c->wrbuf, "</info>");
1205     rs->payload = nmem_strdup(c->nmem, wrbuf_cstr(c->wrbuf));
1206     http_send_response(c);
1207 }
1208
1209 struct {
1210     char *name;
1211     void (*fun)(struct http_channel *c);
1212 } commands[] = {
1213     { "init", cmd_init },
1214     { "settings", cmd_settings },
1215     { "stat", cmd_stat },
1216     { "bytarget", cmd_bytarget },
1217     { "show", cmd_show },
1218     { "search", cmd_search },
1219     { "termlist", cmd_termlist },
1220     { "exit", cmd_exit },
1221     { "session-status", cmd_session_status },
1222     { "server-status", cmd_server_status },
1223     { "ping", cmd_ping },
1224     { "record", cmd_record },
1225     { "info", cmd_info },
1226     {0,0}
1227 };
1228
1229 void http_command(struct http_channel *c)
1230 {
1231     const char *command = http_argbyname(c->request, "command");
1232     struct http_response *rs = http_create_response(c);
1233     int i;
1234
1235     c->response = rs;
1236
1237     http_addheader(rs, "Expires", "Thu, 19 Nov 1981 08:52:00 GMT");
1238     http_addheader(rs, "Cache-Control", "no-store, no-cache, must-revalidate, post-check=0, pre-check=0");
1239
1240     if (!command)
1241     {
1242         error(rs, PAZPAR2_MISSING_PARAMETER, "command");
1243         return;
1244     }
1245     for (i = 0; commands[i].name; i++)
1246         if (!strcmp(commands[i].name, command))
1247         {
1248             (*commands[i].fun)(c);
1249             break;
1250         }
1251     if (!commands[i].name)
1252         error(rs, PAZPAR2_MALFORMED_PARAMETER_VALUE, "command");
1253
1254     return;
1255 }
1256
1257 /*
1258  * Local variables:
1259  * c-basic-offset: 4
1260  * c-file-style: "Stroustrup"
1261  * indent-tabs-mode: nil
1262  * End:
1263  * vim: shiftwidth=4 tabstop=8 expandtab
1264  */
1265