1 /* This file is part of Pazpar2.
2 Copyright (C) 2006-2009 Index Data
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
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
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
24 #include <sys/types.h>
33 #include <yaz/snprintf.h>
34 #include <yaz/yaz-util.h>
37 #include "parameters.h"
43 // Update this when the protocol changes
44 #define PAZPAR2_PROTOCOL_VERSION "1"
47 IOCHAN timeout_iochan; // NOTE: This is NOT associated with a socket
48 struct session *psession;
49 unsigned int session_id;
52 struct http_session *next;
55 static struct http_session *session_list = 0; /* thread pr */
57 void http_session_destroy(struct http_session *s);
59 static void session_timeout(IOCHAN i, int event)
61 struct http_session *s = iochan_getdata(i);
62 http_session_destroy(s);
65 struct http_session *http_session_create(struct conf_service *service)
67 NMEM nmem = nmem_create();
68 struct http_session *r = nmem_malloc(nmem, sizeof(*r));
70 r->psession = new_session(nmem, service);
74 r->next = session_list;
76 r->timeout_iochan = iochan_create(-1, session_timeout, 0);
77 iochan_setdata(r->timeout_iochan, r);
78 iochan_settimeout(r->timeout_iochan, service->session_timeout);
80 pazpar2_add_channel(r->timeout_iochan);
84 void http_session_destroy(struct http_session *s)
86 struct http_session **p;
88 for (p = &session_list; *p; p = &(*p)->next)
94 yaz_log(YLOG_LOG, "Destroying session %u", s->session_id);
95 iochan_destroy(s->timeout_iochan);
96 destroy_session(s->psession);
97 nmem_destroy(s->nmem);
100 static const char *get_msg(enum pazpar2_error_code code)
102 struct pazpar2_error_msg {
103 enum pazpar2_error_code code;
106 static const struct pazpar2_error_msg ar[] = {
107 { PAZPAR2_NO_SESSION, "Session does not exist or it has expired"},
108 { PAZPAR2_MISSING_PARAMETER, "Missing parameter"},
109 { PAZPAR2_MALFORMED_PARAMETER_VALUE, "Malformed parameter value"},
110 { PAZPAR2_MALFORMED_PARAMETER_ENCODING, "Malformed parameter encoding"},
111 { PAZPAR2_MALFORMED_SETTING, "Malformed setting argument"},
112 { PAZPAR2_HITCOUNTS_FAILED, "Failed to retrieve hitcounts"},
113 { PAZPAR2_RECORD_MISSING, "Record missing"},
114 { PAZPAR2_NO_TARGETS, "No targets"},
115 { PAZPAR2_CONFIG_TARGET, "Target cannot be configured"},
116 { PAZPAR2_RECORD_FAIL, "Record command failed"},
117 { PAZPAR2_NOT_IMPLEMENTED, "Not implemented"},
118 { PAZPAR2_LAST_ERROR, "Last error"},
124 if (code == ar[i].code)
131 static void error(struct http_response *rs,
132 enum pazpar2_error_code code,
135 struct http_channel *c = rs->channel;
136 WRBUF text = wrbuf_alloc();
137 const char *http_status = "417";
138 const char *msg = get_msg(code);
140 rs->msg = nmem_strdup(c->nmem, msg);
141 strcpy(rs->code, http_status);
143 wrbuf_printf(text, "<error code=\"%d\" msg=\"%s\">", (int) code,
146 wrbuf_xmlputs(text, addinfo);
147 wrbuf_puts(text, "</error>");
149 yaz_log(YLOG_WARN, "HTTP %s %s%s%s", http_status,
150 msg, addinfo ? ": " : "" , addinfo ? addinfo : "");
151 rs->payload = nmem_strdup(c->nmem, wrbuf_cstr(text));
153 http_send_response(c);
156 unsigned int make_sessionid(void)
158 static int seq = 0; /* thread pr */
162 if (global_parameters.debug_mode)
171 if (gettimeofday(&t, 0) < 0)
173 yaz_log(YLOG_WARN|YLOG_ERRNO, "gettimeofday");
176 /* at most 256 sessions per second ..
177 (long long would be more appropriate)*/
179 res = ((res << 8) | (seq & 0xff)) & ((1U << 31) - 1);
185 static struct http_session *locate_session(struct http_request *rq, struct http_response *rs)
187 struct http_session *p;
188 const char *session = http_argbyname(rq, "session");
193 error(rs, PAZPAR2_MISSING_PARAMETER, "session");
197 for (p = session_list; p; p = p->next)
198 if (id == p->session_id)
200 iochan_activity(p->timeout_iochan);
203 error(rs, PAZPAR2_NO_SESSION, session);
207 // Decode settings parameters and apply to session
208 // Syntax: setting[target]=value
209 static int process_settings(struct session *se, struct http_request *rq,
210 struct http_response *rs)
212 struct http_argument *a;
214 for (a = rq->arguments; a; a = a->next)
215 if (strchr(a->name, '['))
222 // Nmem_strsplit *rules*!!!
223 nmem_strsplit(se->session_nmem, "[]", a->name, &res, &num);
226 error(rs, PAZPAR2_MALFORMED_SETTING, a->name);
231 session_apply_setting(se, dbname, setting,
232 nmem_strdup(se->session_nmem, a->value));
237 static void cmd_exit(struct http_channel *c)
239 yaz_log(YLOG_WARN, "exit");
240 http_close_server(c->server);
243 static void cmd_init(struct http_channel *c)
246 struct http_request *r = c->request;
247 const char *clear = http_argbyname(r, "clear");
248 const char *content_type = http_lookup_header(r->headers, "Content-Type");
250 struct http_session *s;
251 struct http_response *rs = c->response;
252 struct conf_service *service = 0; /* no service (yet) */
254 if (r->content_len && content_type &&
255 !yaz_strcmp_del("text/xml", content_type, "; "))
257 xmlDoc *doc = xmlParseMemory(r->content_buf, r->content_len);
261 error(rs, PAZPAR2_MALFORMED_SETTING, 0);
264 root_n = xmlDocGetRootElement(doc);
265 service = service_create(c->server, root_n);
269 error(rs, PAZPAR2_MALFORMED_SETTING, 0);
276 const char *service_name = http_argbyname(c->request, "service");
277 service = locate_service(c->server, service_name);
280 error(rs, PAZPAR2_MALFORMED_PARAMETER_VALUE, "service");
283 service_incref(service);
285 s = http_session_create(service);
287 yaz_log(YLOG_DEBUG, "HTTP Session init");
288 if (!clear || *clear == '0')
289 session_init_databases(s->psession);
291 yaz_log(YLOG_LOG, "No databases preloaded");
293 sesid = make_sessionid();
294 s->session_id = sesid;
295 if (process_settings(s->psession, c->request, c->response) < 0)
297 sprintf(buf, "<init><status>OK</status><session>%u</session>"
298 "<protocol>" PAZPAR2_PROTOCOL_VERSION "</protocol></init>", sesid);
299 rs->payload = nmem_strdup(c->nmem, buf);
300 http_send_response(c);
303 static void apply_local_setting(void *client_data,
306 struct session *se = (struct session *) client_data;
308 session_apply_setting(se, nmem_strdup(se->session_nmem, set->target),
309 nmem_strdup(se->session_nmem, set->name),
310 nmem_strdup(se->session_nmem, set->value));
313 static void cmd_settings(struct http_channel *c)
315 struct http_response *rs = c->response;
316 struct http_request *rq = c->request;
317 struct http_session *s = locate_session(rq, rs);
318 const char *content_type = http_lookup_header(rq->headers, "Content-Type");
323 if (rq->content_len && content_type &&
324 !yaz_strcmp_del("text/xml", content_type, "; "))
326 xmlDoc *doc = xmlParseMemory(rq->content_buf, rq->content_len);
330 error(rs, PAZPAR2_MALFORMED_SETTING, 0);
333 root_n = xmlDocGetRootElement(doc);
335 settings_read_node_x(root_n, s->psession, apply_local_setting);
339 if (process_settings(s->psession, rq, rs) < 0)
341 rs->payload = "<settings><status>OK</status></settings>";
342 http_send_response(c);
345 // Compares two hitsbytarget nodes by hitcount
346 static int cmp_ht(const void *p1, const void *p2)
348 const struct hitsbytarget *h1 = p1;
349 const struct hitsbytarget *h2 = p2;
350 return h2->hits - h1->hits;
353 // This implements functionality somewhat similar to 'bytarget', but in a termlist form
354 static void targets_termlist(WRBUF wrbuf, struct session *se, int num,
357 struct hitsbytarget *ht;
360 ht = hitsbytarget(se, &count, nmem);
361 qsort(ht, count, sizeof(struct hitsbytarget), cmp_ht);
362 for (i = 0; i < count && i < num && ht[i].hits > 0; i++)
365 // do only print terms which have display names
367 wrbuf_puts(wrbuf, "<term>\n");
369 wrbuf_puts(wrbuf, "<id>");
370 wrbuf_xmlputs(wrbuf, ht[i].id);
371 wrbuf_puts(wrbuf, "</id>\n");
373 wrbuf_puts(wrbuf, "<name>");
374 if (!ht[i].name || !ht[i].name[0])
375 wrbuf_xmlputs(wrbuf, "NO TARGET NAME");
377 wrbuf_xmlputs(wrbuf, ht[i].name);
378 wrbuf_puts(wrbuf, "</name>\n");
380 wrbuf_printf(wrbuf, "<frequency>%d</frequency>\n", ht[i].hits);
382 wrbuf_puts(wrbuf, "<state>");
383 wrbuf_xmlputs(wrbuf, ht[i].state);
384 wrbuf_puts(wrbuf, "</state>\n");
386 wrbuf_printf(wrbuf, "<diagnostic>%d</diagnostic>\n",
388 wrbuf_puts(wrbuf, "</term>\n");
392 static void cmd_termlist(struct http_channel *c)
394 struct http_response *rs = c->response;
395 struct http_request *rq = c->request;
396 struct http_session *s = locate_session(rq, rs);
397 struct termlist_score **p;
400 const char *name = http_argbyname(rq, "name");
401 const char *nums = http_argbyname(rq, "num");
408 status = session_active_clients(s->psession);
412 if (strlen(name) > 255)
417 wrbuf_rewind(c->wrbuf);
419 wrbuf_puts(c->wrbuf, "<termlist>\n");
420 wrbuf_printf(c->wrbuf, "<activeclients>%d</activeclients>\n", status);
426 if (!(tp = strchr(name, ',')))
427 tp = name + strlen(name);
428 strncpy(tname, name, tp - name);
429 tname[tp - name] = '\0';
431 wrbuf_puts(c->wrbuf, "<list name=\"");
432 wrbuf_xmlputs(c->wrbuf, tname);
433 wrbuf_puts(c->wrbuf, "\">\n");
434 if (!strcmp(tname, "xtargets"))
435 targets_termlist(c->wrbuf, s->psession, num, c->nmem);
438 p = termlist(s->psession, tname, &len);
440 for (i = 0; i < len && i < num; i++){
441 // prevnt sending empty term elements
442 if (!p[i]->term || !p[i]->term[0])
445 wrbuf_puts(c->wrbuf, "<term>");
446 wrbuf_puts(c->wrbuf, "<name>");
447 wrbuf_xmlputs(c->wrbuf, p[i]->term);
448 wrbuf_puts(c->wrbuf, "</name>");
450 wrbuf_printf(c->wrbuf,
451 "<frequency>%d</frequency>",
453 wrbuf_puts(c->wrbuf, "</term>\n");
456 wrbuf_puts(c->wrbuf, "</list>\n");
461 wrbuf_puts(c->wrbuf, "</termlist>\n");
462 rs->payload = nmem_strdup(rq->channel->nmem, wrbuf_cstr(c->wrbuf));
463 http_send_response(c);
467 static void cmd_bytarget(struct http_channel *c)
469 struct http_response *rs = c->response;
470 struct http_request *rq = c->request;
471 struct http_session *s = locate_session(rq, rs);
472 struct hitsbytarget *ht;
477 ht = hitsbytarget(s->psession, &count, c->nmem);
478 wrbuf_rewind(c->wrbuf);
479 wrbuf_puts(c->wrbuf, "<bytarget><status>OK</status>");
481 for (i = 0; i < count; i++)
483 wrbuf_puts(c->wrbuf, "\n<target>");
485 wrbuf_puts(c->wrbuf, "<id>");
486 wrbuf_xmlputs(c->wrbuf, ht[i].id);
487 wrbuf_puts(c->wrbuf, "</id>\n");
489 if (ht[i].name && ht[i].name[0])
491 wrbuf_puts(c->wrbuf, "<name>");
492 wrbuf_xmlputs(c->wrbuf, ht[i].name);
493 wrbuf_puts(c->wrbuf, "</name>\n");
496 wrbuf_printf(c->wrbuf, "<hits>%d</hits>\n", ht[i].hits);
497 wrbuf_printf(c->wrbuf, "<diagnostic>%d</diagnostic>\n", ht[i].diagnostic);
498 wrbuf_printf(c->wrbuf, "<records>%d</records>\n", ht[i].records);
500 wrbuf_puts(c->wrbuf, "<state>");
501 wrbuf_xmlputs(c->wrbuf, ht[i].state);
502 wrbuf_puts(c->wrbuf, "</state>\n");
504 wrbuf_puts(c->wrbuf, "</target>");
507 wrbuf_puts(c->wrbuf, "</bytarget>");
508 rs->payload = nmem_strdup(c->nmem, wrbuf_cstr(c->wrbuf));
509 http_send_response(c);
512 static void write_metadata(WRBUF w, struct conf_service *service,
513 struct record_metadata **ml, int full)
517 for (imeta = 0; imeta < service->num_metadata; imeta++)
519 struct conf_metadata *cmd = &service->metadata[imeta];
520 struct record_metadata *md;
521 if (!cmd->brief && !full)
523 for (md = ml[imeta]; md; md = md->next)
525 wrbuf_printf(w, "\n<md-%s>", cmd->name);
529 case Metadata_type_generic:
530 wrbuf_xmlputs(w, md->data.text.disp);
532 case Metadata_type_year:
533 wrbuf_printf(w, "%d", md->data.number.min);
534 if (md->data.number.min != md->data.number.max)
535 wrbuf_printf(w, "-%d", md->data.number.max);
538 wrbuf_puts(w, "[can't represent]");
540 wrbuf_printf(w, "</md-%s>", cmd->name);
545 static void write_subrecord(struct record *r, WRBUF w,
546 struct conf_service *service, int show_details)
548 const char *name = session_setting_oneval(
549 client_get_database(r->client), PZ_NAME);
551 wrbuf_puts(w, "<location id=\"");
552 wrbuf_xmlputs(w, client_get_database(r->client)->database->url);
553 wrbuf_puts(w, "\" ");
555 wrbuf_puts(w, "name=\"");
556 wrbuf_xmlputs(w, *name ? name : "Unknown");
557 wrbuf_puts(w, "\">");
559 write_metadata(w, service, r->metadata, show_details);
560 wrbuf_puts(w, "</location>\n");
563 static void show_raw_record_error(void *data, const char *addinfo)
565 http_channel_observer_t obs = data;
566 struct http_channel *c = http_channel_observer_chan(obs);
567 struct http_response *rs = c->response;
569 http_remove_observer(obs);
571 error(rs, PAZPAR2_RECORD_FAIL, addinfo);
574 static void show_raw_record_ok(void *data, const char *buf, size_t sz)
576 http_channel_observer_t obs = data;
577 struct http_channel *c = http_channel_observer_chan(obs);
578 struct http_response *rs = c->response;
580 http_remove_observer(obs);
582 wrbuf_write(c->wrbuf, buf, sz);
583 rs->payload = nmem_strdup(c->nmem, wrbuf_cstr(c->wrbuf));
584 http_send_response(c);
588 static void show_raw_record_ok_binary(void *data, const char *buf, size_t sz)
590 http_channel_observer_t obs = data;
591 struct http_channel *c = http_channel_observer_chan(obs);
592 struct http_response *rs = c->response;
594 http_remove_observer(obs);
596 wrbuf_write(c->wrbuf, buf, sz);
597 rs->payload = nmem_strdup(c->nmem, wrbuf_cstr(c->wrbuf));
599 rs->content_type = "application/octet-stream";
600 http_send_response(c);
604 void show_raw_reset(void *data, struct http_channel *c, void *data2)
606 //struct client *client = data;
607 //client_show_raw_remove(client, data2);
610 static void cmd_record_ready(void *data);
612 static void cmd_record(struct http_channel *c)
614 struct http_response *rs = c->response;
615 struct http_request *rq = c->request;
616 struct http_session *s = locate_session(rq, rs);
617 struct record_cluster *rec, *prev_r, *next_r;
619 struct conf_service *service;
620 const char *idstr = http_argbyname(rq, "id");
621 const char *offsetstr = http_argbyname(rq, "offset");
622 const char *binarystr = http_argbyname(rq, "binary");
626 service = s->psession->service;
629 error(rs, PAZPAR2_MISSING_PARAMETER, "id");
632 wrbuf_rewind(c->wrbuf);
633 if (!(rec = show_single(s->psession, idstr, &prev_r, &next_r)))
635 if (session_active_clients(s->psession) == 0)
637 error(rs, PAZPAR2_RECORD_MISSING, idstr);
639 else if (session_set_watch(s->psession, SESSION_WATCH_RECORD,
640 cmd_record_ready, c, c) != 0)
642 error(rs, PAZPAR2_RECORD_MISSING, idstr);
648 int offset = atoi(offsetstr);
649 const char *syntax = http_argbyname(rq, "syntax");
650 const char *esn = http_argbyname(rq, "esn");
652 struct record*r = rec->records;
655 if (binarystr && *binarystr != '0')
658 for (i = 0; i < offset && r; r = r->next, i++)
662 error(rs, PAZPAR2_RECORD_FAIL, "no record at offset given");
667 http_channel_observer_t obs =
668 http_add_observer(c, r->client, show_raw_reset);
669 int ret = client_show_raw_begin(r->client, r->position,
672 show_raw_record_error,
674 show_raw_record_ok_binary :
679 http_remove_observer(obs);
680 error(rs, PAZPAR2_NO_SESSION, 0);
686 wrbuf_puts(c->wrbuf, "<record>\n");
687 wrbuf_puts(c->wrbuf, "<recid>");
688 wrbuf_xmlputs(c->wrbuf, rec->recid);
689 wrbuf_puts(c->wrbuf, "</recid>\n");
692 wrbuf_puts(c->wrbuf, "<prevrecid>");
693 wrbuf_xmlputs(c->wrbuf, prev_r->recid);
694 wrbuf_puts(c->wrbuf, "</prevrecid>\n");
698 wrbuf_puts(c->wrbuf, "<nextrecid>");
699 wrbuf_xmlputs(c->wrbuf, next_r->recid);
700 wrbuf_puts(c->wrbuf, "</nextrecid>\n");
702 wrbuf_printf(c->wrbuf, "<activeclients>%d</activeclients>\n",
703 session_active_clients(s->psession));
704 write_metadata(c->wrbuf, service, rec->metadata, 1);
705 for (r = rec->records; r; r = r->next)
706 write_subrecord(r, c->wrbuf, service, 1);
707 wrbuf_puts(c->wrbuf, "</record>\n");
708 rs->payload = nmem_strdup(c->nmem, wrbuf_cstr(c->wrbuf));
709 http_send_response(c);
713 static void cmd_record_ready(void *data)
715 struct http_channel *c = (struct http_channel *) data;
720 static void show_records(struct http_channel *c, int active)
722 struct http_request *rq = c->request;
723 struct http_response *rs = c->response;
724 struct http_session *s = locate_session(rq, rs);
725 struct record_cluster **rl;
726 struct reclist_sortparms *sp;
727 const char *start = http_argbyname(rq, "start");
728 const char *num = http_argbyname(rq, "num");
729 const char *sort = http_argbyname(rq, "sort");
739 // We haven't counted clients yet if we're called on a block release
741 active = session_active_clients(s->psession);
744 startn = atoi(start);
749 if (!(sp = reclist_parse_sortparms(c->nmem, sort, s->psession->service)))
751 error(rs, PAZPAR2_MALFORMED_PARAMETER_VALUE, "sort");
755 rl = show(s->psession, sp, startn, &numn, &total, &total_hits, c->nmem);
757 wrbuf_rewind(c->wrbuf);
758 wrbuf_puts(c->wrbuf, "<show>\n<status>OK</status>\n");
759 wrbuf_printf(c->wrbuf, "<activeclients>%d</activeclients>\n", active);
760 wrbuf_printf(c->wrbuf, "<merged>%d</merged>\n", total);
761 wrbuf_printf(c->wrbuf, "<total>%d</total>\n", total_hits);
762 wrbuf_printf(c->wrbuf, "<start>%d</start>\n", startn);
763 wrbuf_printf(c->wrbuf, "<num>%d</num>\n", numn);
765 for (i = 0; i < numn; i++)
769 struct record_cluster *rec = rl[i];
770 struct conf_service *service = s->psession->service;
772 wrbuf_puts(c->wrbuf, "<hit>\n");
773 write_metadata(c->wrbuf, service, rec->metadata, 0);
774 for (ccount = 0, p = rl[i]->records; p; p = p->next, ccount++)
775 write_subrecord(p, c->wrbuf, service, 0); // subrecs w/o details
777 wrbuf_printf(c->wrbuf, "<count>%d</count>\n", ccount);
778 wrbuf_puts(c->wrbuf, "<recid>");
779 wrbuf_xmlputs(c->wrbuf, rec->recid);
780 wrbuf_puts(c->wrbuf, "</recid>\n");
781 wrbuf_puts(c->wrbuf, "</hit>\n");
784 wrbuf_puts(c->wrbuf, "</show>\n");
785 rs->payload = nmem_strdup(c->nmem, wrbuf_cstr(c->wrbuf));
786 http_send_response(c);
789 static void show_records_ready(void *data)
791 struct http_channel *c = (struct http_channel *) data;
796 static void cmd_show(struct http_channel *c)
798 struct http_request *rq = c->request;
799 struct http_response *rs = c->response;
800 struct http_session *s = locate_session(rq, rs);
801 const char *block = http_argbyname(rq, "block");
807 status = session_active_clients(s->psession);
811 if (status && (!s->psession->reclist || !s->psession->reclist->num_records))
813 // if there is already a watch/block. we do not block this one
814 if (session_set_watch(s->psession, SESSION_WATCH_SHOW,
815 show_records_ready, c, c) != 0)
817 yaz_log(YLOG_DEBUG, "Blocking on cmd_show");
823 show_records(c, status);
826 static void cmd_ping(struct http_channel *c)
828 struct http_request *rq = c->request;
829 struct http_response *rs = c->response;
830 struct http_session *s = locate_session(rq, rs);
833 rs->payload = "<ping><status>OK</status></ping>";
834 http_send_response(c);
837 static int utf_8_valid(const char *str)
839 yaz_iconv_t cd = yaz_iconv_open("utf-8", "utf-8");
842 /* check that query is UTF-8 encoded */
843 char *inbuf = (char *) str; /* we know iconv does not alter this */
844 size_t inbytesleft = strlen(inbuf);
846 size_t outbytesleft = strlen(inbuf) + 10;
847 char *out = xmalloc(outbytesleft);
849 size_t r = yaz_iconv(cd, &inbuf, &inbytesleft, &outbuf, &outbytesleft);
851 /* if OK, try flushing the rest */
852 if (r != (size_t) (-1))
853 r = yaz_iconv(cd, 0, 0, &outbuf, &outbytesleft);
856 if (r == (size_t) (-1))
862 static void cmd_search(struct http_channel *c)
864 struct http_request *rq = c->request;
865 struct http_response *rs = c->response;
866 struct http_session *s = locate_session(rq, rs);
867 const char *query = http_argbyname(rq, "query");
868 const char *filter = http_argbyname(rq, "filter");
869 enum pazpar2_error_code code;
870 const char *addinfo = 0;
876 error(rs, PAZPAR2_MISSING_PARAMETER, "query");
879 if (!utf_8_valid(query))
881 error(rs, PAZPAR2_MALFORMED_PARAMETER_ENCODING, "query");
884 code = search(s->psession, query, filter, &addinfo);
887 error(rs, code, addinfo);
890 rs->payload = "<search><status>OK</status></search>";
891 http_send_response(c);
895 static void cmd_stat(struct http_channel *c)
897 struct http_request *rq = c->request;
898 struct http_response *rs = c->response;
899 struct http_session *s = locate_session(rq, rs);
900 struct statistics stat;
908 clients = session_active_clients(s->psession);
909 statistics(s->psession, &stat);
911 if (stat.num_clients > 0) {
912 progress = (stat.num_clients - clients) / (float)stat.num_clients;
915 wrbuf_rewind(c->wrbuf);
916 wrbuf_puts(c->wrbuf, "<stat>");
917 wrbuf_printf(c->wrbuf, "<activeclients>%d</activeclients>\n", clients);
918 wrbuf_printf(c->wrbuf, "<hits>%d</hits>\n", stat.num_hits);
919 wrbuf_printf(c->wrbuf, "<records>%d</records>\n", stat.num_records);
920 wrbuf_printf(c->wrbuf, "<clients>%d</clients>\n", stat.num_clients);
921 wrbuf_printf(c->wrbuf, "<unconnected>%d</unconnected>\n", stat.num_no_connection);
922 wrbuf_printf(c->wrbuf, "<connecting>%d</connecting>\n", stat.num_connecting);
923 wrbuf_printf(c->wrbuf, "<working>%d</working>\n", stat.num_working);
924 wrbuf_printf(c->wrbuf, "<idle>%d</idle>\n", stat.num_idle);
925 wrbuf_printf(c->wrbuf, "<failed>%d</failed>\n", stat.num_failed);
926 wrbuf_printf(c->wrbuf, "<error>%d</error>\n", stat.num_error);
927 wrbuf_printf(c->wrbuf, "<progress>%.2f</progress>\n", progress);
928 wrbuf_puts(c->wrbuf, "</stat>");
929 rs->payload = nmem_strdup(c->nmem, wrbuf_cstr(c->wrbuf));
930 http_send_response(c);
933 static void cmd_info(struct http_channel *c)
935 char yaz_version_str[20];
936 struct http_response *rs = c->response;
938 wrbuf_rewind(c->wrbuf);
939 wrbuf_puts(c->wrbuf, "<info>\n");
940 wrbuf_puts(c->wrbuf, " <version>\n");
941 wrbuf_puts(c->wrbuf, "<pazpar2");
942 #ifdef PAZPAR2_VERSION_SHA1
943 wrbuf_printf(c->wrbuf, " sha1=\"%s\"", PAZPAR2_VERSION_SHA1);
945 wrbuf_puts(c->wrbuf, ">");
946 wrbuf_xmlputs(c->wrbuf, VERSION);
947 wrbuf_puts(c->wrbuf, "</pazpar2>");
950 yaz_version(yaz_version_str, 0);
951 wrbuf_puts(c->wrbuf, " <yaz compiled=\"");
952 wrbuf_xmlputs(c->wrbuf, YAZ_VERSION);
953 wrbuf_puts(c->wrbuf, "\">");
954 wrbuf_xmlputs(c->wrbuf, yaz_version_str);
955 wrbuf_puts(c->wrbuf, "</yaz>\n");
957 wrbuf_puts(c->wrbuf, " </version>\n");
959 wrbuf_puts(c->wrbuf, "</info>");
960 rs->payload = nmem_strdup(c->nmem, wrbuf_cstr(c->wrbuf));
961 http_send_response(c);
966 void (*fun)(struct http_channel *c);
968 { "init", cmd_init },
969 { "settings", cmd_settings },
970 { "stat", cmd_stat },
971 { "bytarget", cmd_bytarget },
972 { "show", cmd_show },
973 { "search", cmd_search },
974 { "termlist", cmd_termlist },
975 { "exit", cmd_exit },
976 { "ping", cmd_ping },
977 { "record", cmd_record },
978 { "info", cmd_info },
982 void http_command(struct http_channel *c)
984 const char *command = http_argbyname(c->request, "command");
985 struct http_response *rs = http_create_response(c);
990 http_addheader(rs, "Expires", "Thu, 19 Nov 1981 08:52:00 GMT");
991 http_addheader(rs, "Cache-Control", "no-store, no-cache, must-revalidate, post-check=0, pre-check=0");
995 error(rs, PAZPAR2_MISSING_PARAMETER, "command");
998 for (i = 0; commands[i].name; i++)
999 if (!strcmp(commands[i].name, command))
1001 (*commands[i].fun)(c);
1004 if (!commands[i].name)
1005 error(rs, PAZPAR2_MALFORMED_PARAMETER_VALUE, "command");
1013 * c-file-style: "Stroustrup"
1014 * indent-tabs-mode: nil
1016 * vim: shiftwidth=4 tabstop=8 expandtab