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"
46 #define HTTP_COMMAND_RESPONSE_PREFIX "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
49 IOCHAN timeout_iochan; // NOTE: This is NOT associated with a socket
50 struct session *psession;
51 unsigned int session_id;
54 struct http_session *next;
57 static struct http_session *session_list = 0; /* thread pr */
59 void http_session_destroy(struct http_session *s);
61 static void session_timeout(IOCHAN i, int event)
63 struct http_session *s = iochan_getdata(i);
64 http_session_destroy(s);
67 struct http_session *http_session_create(struct conf_service *service)
69 NMEM nmem = nmem_create();
70 struct http_session *r = nmem_malloc(nmem, sizeof(*r));
72 r->psession = new_session(nmem, service);
76 r->next = session_list;
78 r->timeout_iochan = iochan_create(-1, session_timeout, 0);
79 iochan_setdata(r->timeout_iochan, r);
80 iochan_settimeout(r->timeout_iochan, service->session_timeout);
82 pazpar2_add_channel(r->timeout_iochan);
86 void http_session_destroy(struct http_session *s)
88 struct http_session **p;
90 for (p = &session_list; *p; p = &(*p)->next)
96 yaz_log(YLOG_LOG, "Destroying session %u", s->session_id);
97 iochan_destroy(s->timeout_iochan);
98 destroy_session(s->psession);
99 nmem_destroy(s->nmem);
102 static const char *get_msg(enum pazpar2_error_code code)
104 struct pazpar2_error_msg {
105 enum pazpar2_error_code code;
108 static const struct pazpar2_error_msg ar[] = {
109 { PAZPAR2_NO_SESSION, "Session does not exist or it has expired"},
110 { PAZPAR2_MISSING_PARAMETER, "Missing parameter"},
111 { PAZPAR2_MALFORMED_PARAMETER_VALUE, "Malformed parameter value"},
112 { PAZPAR2_MALFORMED_PARAMETER_ENCODING, "Malformed parameter encoding"},
113 { PAZPAR2_MALFORMED_SETTING, "Malformed setting argument"},
114 { PAZPAR2_HITCOUNTS_FAILED, "Failed to retrieve hitcounts"},
115 { PAZPAR2_RECORD_MISSING, "Record missing"},
116 { PAZPAR2_NO_TARGETS, "No targets"},
117 { PAZPAR2_CONFIG_TARGET, "Target cannot be configured"},
118 { PAZPAR2_RECORD_FAIL, "Record command failed"},
119 { PAZPAR2_NOT_IMPLEMENTED, "Not implemented"},
120 { PAZPAR2_LAST_ERROR, "Last error"},
126 if (code == ar[i].code)
133 static void error(struct http_response *rs,
134 enum pazpar2_error_code code,
137 struct http_channel *c = rs->channel;
138 WRBUF text = wrbuf_alloc();
139 const char *http_status = "417";
140 const char *msg = get_msg(code);
142 rs->msg = nmem_strdup(c->nmem, msg);
143 strcpy(rs->code, http_status);
145 wrbuf_printf(text, HTTP_COMMAND_RESPONSE_PREFIX "<error code=\"%d\" msg=\"%s\">", (int) code,
148 wrbuf_xmlputs(text, addinfo);
149 wrbuf_puts(text, "</error>");
151 yaz_log(YLOG_WARN, "HTTP %s %s%s%s", http_status,
152 msg, addinfo ? ": " : "" , addinfo ? addinfo : "");
153 rs->payload = nmem_strdup(c->nmem, wrbuf_cstr(text));
155 http_send_response(c);
158 unsigned int make_sessionid(void)
160 static int seq = 0; /* thread pr */
164 if (global_parameters.debug_mode)
173 if (gettimeofday(&t, 0) < 0)
175 yaz_log(YLOG_WARN|YLOG_ERRNO, "gettimeofday");
178 /* at most 256 sessions per second ..
179 (long long would be more appropriate)*/
181 res = ((res << 8) | (seq & 0xff)) & ((1U << 31) - 1);
187 static struct http_session *locate_session(struct http_request *rq, struct http_response *rs)
189 struct http_session *p;
190 const char *session = http_argbyname(rq, "session");
195 error(rs, PAZPAR2_MISSING_PARAMETER, "session");
199 for (p = session_list; p; p = p->next)
200 if (id == p->session_id)
202 iochan_activity(p->timeout_iochan);
205 error(rs, PAZPAR2_NO_SESSION, session);
209 // Decode settings parameters and apply to session
210 // Syntax: setting[target]=value
211 static int process_settings(struct session *se, struct http_request *rq,
212 struct http_response *rs)
214 struct http_argument *a;
216 for (a = rq->arguments; a; a = a->next)
217 if (strchr(a->name, '['))
224 // Nmem_strsplit *rules*!!!
225 nmem_strsplit(se->session_nmem, "[]", a->name, &res, &num);
228 error(rs, PAZPAR2_MALFORMED_SETTING, a->name);
233 session_apply_setting(se, dbname, setting,
234 nmem_strdup(se->session_nmem, a->value));
239 static void cmd_exit(struct http_channel *c)
241 yaz_log(YLOG_WARN, "exit");
242 http_close_server(c->server);
245 static void cmd_init(struct http_channel *c)
248 struct http_request *r = c->request;
249 const char *clear = http_argbyname(r, "clear");
250 const char *content_type = http_lookup_header(r->headers, "Content-Type");
252 struct http_session *s;
253 struct http_response *rs = c->response;
254 struct conf_service *service = 0; /* no service (yet) */
256 if (r->content_len && content_type &&
257 !yaz_strcmp_del("text/xml", content_type, "; "))
259 xmlDoc *doc = xmlParseMemory(r->content_buf, r->content_len);
263 error(rs, PAZPAR2_MALFORMED_SETTING, 0);
266 root_n = xmlDocGetRootElement(doc);
267 service = service_create(c->server, root_n);
271 error(rs, PAZPAR2_MALFORMED_SETTING, 0);
278 const char *service_name = http_argbyname(c->request, "service");
279 service = locate_service(c->server, service_name);
282 error(rs, PAZPAR2_MALFORMED_PARAMETER_VALUE, "service");
285 service_incref(service);
287 s = http_session_create(service);
289 yaz_log(YLOG_DEBUG, "HTTP Session init");
290 if (!clear || *clear == '0')
291 session_init_databases(s->psession);
293 yaz_log(YLOG_LOG, "No databases preloaded");
295 sesid = make_sessionid();
296 s->session_id = sesid;
297 if (process_settings(s->psession, c->request, c->response) < 0)
299 sprintf(buf, HTTP_COMMAND_RESPONSE_PREFIX "<init><status>OK</status><session>%u</session>"
300 "<protocol>" PAZPAR2_PROTOCOL_VERSION "</protocol></init>", sesid);
301 rs->payload = nmem_strdup(c->nmem, buf);
302 http_send_response(c);
305 static void apply_local_setting(void *client_data,
308 struct session *se = (struct session *) client_data;
310 session_apply_setting(se, nmem_strdup(se->session_nmem, set->target),
311 nmem_strdup(se->session_nmem, set->name),
312 nmem_strdup(se->session_nmem, set->value));
315 static void cmd_settings(struct http_channel *c)
317 struct http_response *rs = c->response;
318 struct http_request *rq = c->request;
319 struct http_session *s = locate_session(rq, rs);
320 const char *content_type = http_lookup_header(rq->headers, "Content-Type");
325 if (rq->content_len && content_type &&
326 !yaz_strcmp_del("text/xml", content_type, "; "))
328 xmlDoc *doc = xmlParseMemory(rq->content_buf, rq->content_len);
332 error(rs, PAZPAR2_MALFORMED_SETTING, 0);
335 root_n = xmlDocGetRootElement(doc);
337 settings_read_node_x(root_n, s->psession, apply_local_setting);
341 if (process_settings(s->psession, rq, rs) < 0)
343 rs->payload = HTTP_COMMAND_RESPONSE_PREFIX "<settings><status>OK</status></settings>";
344 http_send_response(c);
347 // Compares two hitsbytarget nodes by hitcount
348 static int cmp_ht(const void *p1, const void *p2)
350 const struct hitsbytarget *h1 = p1;
351 const struct hitsbytarget *h2 = p2;
352 return h2->hits - h1->hits;
355 // This implements functionality somewhat similar to 'bytarget', but in a termlist form
356 static void targets_termlist(WRBUF wrbuf, struct session *se, int num,
359 struct hitsbytarget *ht;
362 ht = hitsbytarget(se, &count, nmem);
363 qsort(ht, count, sizeof(struct hitsbytarget), cmp_ht);
364 for (i = 0; i < count && i < num && ht[i].hits > 0; i++)
367 // do only print terms which have display names
369 wrbuf_puts(wrbuf, "<term>\n");
371 wrbuf_puts(wrbuf, "<id>");
372 wrbuf_xmlputs(wrbuf, ht[i].id);
373 wrbuf_puts(wrbuf, "</id>\n");
375 wrbuf_puts(wrbuf, "<name>");
376 if (!ht[i].name || !ht[i].name[0])
377 wrbuf_xmlputs(wrbuf, "NO TARGET NAME");
379 wrbuf_xmlputs(wrbuf, ht[i].name);
380 wrbuf_puts(wrbuf, "</name>\n");
382 wrbuf_printf(wrbuf, "<frequency>%d</frequency>\n", ht[i].hits);
384 wrbuf_puts(wrbuf, "<state>");
385 wrbuf_xmlputs(wrbuf, ht[i].state);
386 wrbuf_puts(wrbuf, "</state>\n");
388 wrbuf_printf(wrbuf, "<diagnostic>%d</diagnostic>\n",
390 wrbuf_puts(wrbuf, "</term>\n");
394 static void cmd_termlist(struct http_channel *c)
396 struct http_response *rs = c->response;
397 struct http_request *rq = c->request;
398 struct http_session *s = locate_session(rq, rs);
399 struct termlist_score **p;
402 const char *name = http_argbyname(rq, "name");
403 const char *nums = http_argbyname(rq, "num");
410 status = session_active_clients(s->psession);
414 if (strlen(name) > 255)
419 wrbuf_rewind(c->wrbuf);
421 wrbuf_puts(c->wrbuf, "<termlist>\n");
422 wrbuf_printf(c->wrbuf, "<activeclients>%d</activeclients>\n", status);
428 if (!(tp = strchr(name, ',')))
429 tp = name + strlen(name);
430 strncpy(tname, name, tp - name);
431 tname[tp - name] = '\0';
433 wrbuf_puts(c->wrbuf, "<list name=\"");
434 wrbuf_xmlputs(c->wrbuf, tname);
435 wrbuf_puts(c->wrbuf, "\">\n");
436 if (!strcmp(tname, "xtargets"))
437 targets_termlist(c->wrbuf, s->psession, num, c->nmem);
440 p = termlist(s->psession, tname, &len);
442 for (i = 0; i < len && i < num; i++){
443 // prevnt sending empty term elements
444 if (!p[i]->term || !p[i]->term[0])
447 wrbuf_puts(c->wrbuf, "<term>");
448 wrbuf_puts(c->wrbuf, "<name>");
449 wrbuf_xmlputs(c->wrbuf, p[i]->term);
450 wrbuf_puts(c->wrbuf, "</name>");
452 wrbuf_printf(c->wrbuf,
453 "<frequency>%d</frequency>",
455 wrbuf_puts(c->wrbuf, "</term>\n");
458 wrbuf_puts(c->wrbuf, "</list>\n");
463 wrbuf_puts(c->wrbuf, "</termlist>\n");
464 rs->payload = nmem_strdup(rq->channel->nmem, wrbuf_cstr(c->wrbuf));
465 http_send_response(c);
469 static void cmd_bytarget(struct http_channel *c)
471 struct http_response *rs = c->response;
472 struct http_request *rq = c->request;
473 struct http_session *s = locate_session(rq, rs);
474 struct hitsbytarget *ht;
475 const char *settings = http_argbyname(rq, "settings");
480 ht = hitsbytarget(s->psession, &count, c->nmem);
481 wrbuf_rewind(c->wrbuf);
482 wrbuf_puts(c->wrbuf, HTTP_COMMAND_RESPONSE_PREFIX "<bytarget><status>OK</status>");
484 for (i = 0; i < count; i++)
486 wrbuf_puts(c->wrbuf, "\n<target>");
488 wrbuf_puts(c->wrbuf, "<id>");
489 wrbuf_xmlputs(c->wrbuf, ht[i].id);
490 wrbuf_puts(c->wrbuf, "</id>\n");
492 if (ht[i].name && ht[i].name[0])
494 wrbuf_puts(c->wrbuf, "<name>");
495 wrbuf_xmlputs(c->wrbuf, ht[i].name);
496 wrbuf_puts(c->wrbuf, "</name>\n");
499 wrbuf_printf(c->wrbuf, "<hits>%d</hits>\n", ht[i].hits);
500 wrbuf_printf(c->wrbuf, "<diagnostic>%d</diagnostic>\n", ht[i].diagnostic);
501 wrbuf_printf(c->wrbuf, "<records>%d</records>\n", ht[i].records);
503 wrbuf_puts(c->wrbuf, "<state>");
504 wrbuf_xmlputs(c->wrbuf, ht[i].state);
505 wrbuf_puts(c->wrbuf, "</state>\n");
506 if (settings && *settings == '1')
508 wrbuf_puts(c->wrbuf, "<settings>\n");
509 wrbuf_puts(c->wrbuf, wrbuf_cstr(ht[i].settings_xml));
510 wrbuf_puts(c->wrbuf, "</settings>\n");
512 wrbuf_puts(c->wrbuf, "</target>");
513 wrbuf_destroy(ht[i].settings_xml);
516 wrbuf_puts(c->wrbuf, "</bytarget>");
517 rs->payload = nmem_strdup(c->nmem, wrbuf_cstr(c->wrbuf));
518 http_send_response(c);
521 static void write_metadata(WRBUF w, struct conf_service *service,
522 struct record_metadata **ml, int full)
526 for (imeta = 0; imeta < service->num_metadata; imeta++)
528 struct conf_metadata *cmd = &service->metadata[imeta];
529 struct record_metadata *md;
530 if (!cmd->brief && !full)
532 for (md = ml[imeta]; md; md = md->next)
534 wrbuf_printf(w, "\n<md-%s>", cmd->name);
538 case Metadata_type_generic:
539 wrbuf_xmlputs(w, md->data.text.disp);
541 case Metadata_type_year:
542 wrbuf_printf(w, "%d", md->data.number.min);
543 if (md->data.number.min != md->data.number.max)
544 wrbuf_printf(w, "-%d", md->data.number.max);
547 wrbuf_puts(w, "[can't represent]");
549 wrbuf_printf(w, "</md-%s>", cmd->name);
554 static void write_subrecord(struct record *r, WRBUF w,
555 struct conf_service *service, int show_details)
557 const char *name = session_setting_oneval(
558 client_get_database(r->client), PZ_NAME);
560 wrbuf_puts(w, "<location id=\"");
561 wrbuf_xmlputs(w, client_get_database(r->client)->database->url);
562 wrbuf_puts(w, "\" ");
564 wrbuf_puts(w, "name=\"");
565 wrbuf_xmlputs(w, *name ? name : "Unknown");
566 wrbuf_puts(w, "\">");
568 write_metadata(w, service, r->metadata, show_details);
569 wrbuf_puts(w, "</location>\n");
572 static void show_raw_record_error(void *data, const char *addinfo)
574 http_channel_observer_t obs = data;
575 struct http_channel *c = http_channel_observer_chan(obs);
576 struct http_response *rs = c->response;
578 http_remove_observer(obs);
580 error(rs, PAZPAR2_RECORD_FAIL, addinfo);
583 static void show_raw_record_ok(void *data, const char *buf, size_t sz)
585 http_channel_observer_t obs = data;
586 struct http_channel *c = http_channel_observer_chan(obs);
587 struct http_response *rs = c->response;
589 http_remove_observer(obs);
591 wrbuf_write(c->wrbuf, buf, sz);
592 rs->payload = nmem_strdup(c->nmem, wrbuf_cstr(c->wrbuf));
593 http_send_response(c);
597 static void show_raw_record_ok_binary(void *data, const char *buf, size_t sz)
599 http_channel_observer_t obs = data;
600 struct http_channel *c = http_channel_observer_chan(obs);
601 struct http_response *rs = c->response;
603 http_remove_observer(obs);
605 wrbuf_write(c->wrbuf, buf, sz);
606 rs->payload = nmem_strdup(c->nmem, wrbuf_cstr(c->wrbuf));
608 rs->content_type = "application/octet-stream";
609 http_send_response(c);
613 void show_raw_reset(void *data, struct http_channel *c, void *data2)
615 //struct client *client = data;
616 //client_show_raw_remove(client, data2);
619 static void cmd_record_ready(void *data);
621 static void cmd_record(struct http_channel *c)
623 struct http_response *rs = c->response;
624 struct http_request *rq = c->request;
625 struct http_session *s = locate_session(rq, rs);
626 struct record_cluster *rec, *prev_r, *next_r;
628 struct conf_service *service;
629 const char *idstr = http_argbyname(rq, "id");
630 const char *offsetstr = http_argbyname(rq, "offset");
631 const char *binarystr = http_argbyname(rq, "binary");
635 service = s->psession->service;
638 error(rs, PAZPAR2_MISSING_PARAMETER, "id");
641 wrbuf_rewind(c->wrbuf);
642 if (!(rec = show_single(s->psession, idstr, &prev_r, &next_r)))
644 if (session_active_clients(s->psession) == 0)
646 error(rs, PAZPAR2_RECORD_MISSING, idstr);
648 else if (session_set_watch(s->psession, SESSION_WATCH_RECORD,
649 cmd_record_ready, c, c) != 0)
651 error(rs, PAZPAR2_RECORD_MISSING, idstr);
657 int offset = atoi(offsetstr);
658 const char *syntax = http_argbyname(rq, "syntax");
659 const char *esn = http_argbyname(rq, "esn");
661 struct record*r = rec->records;
664 if (binarystr && *binarystr != '0')
667 for (i = 0; i < offset && r; r = r->next, i++)
671 error(rs, PAZPAR2_RECORD_FAIL, "no record at offset given");
676 http_channel_observer_t obs =
677 http_add_observer(c, r->client, show_raw_reset);
678 int ret = client_show_raw_begin(r->client, r->position,
681 show_raw_record_error,
683 show_raw_record_ok_binary :
688 http_remove_observer(obs);
689 error(rs, PAZPAR2_NO_SESSION, 0);
695 wrbuf_puts(c->wrbuf, HTTP_COMMAND_RESPONSE_PREFIX "<record>\n");
696 wrbuf_puts(c->wrbuf, "<recid>");
697 wrbuf_xmlputs(c->wrbuf, rec->recid);
698 wrbuf_puts(c->wrbuf, "</recid>\n");
701 wrbuf_puts(c->wrbuf, "<prevrecid>");
702 wrbuf_xmlputs(c->wrbuf, prev_r->recid);
703 wrbuf_puts(c->wrbuf, "</prevrecid>\n");
707 wrbuf_puts(c->wrbuf, "<nextrecid>");
708 wrbuf_xmlputs(c->wrbuf, next_r->recid);
709 wrbuf_puts(c->wrbuf, "</nextrecid>\n");
711 wrbuf_printf(c->wrbuf, "<activeclients>%d</activeclients>\n",
712 session_active_clients(s->psession));
713 write_metadata(c->wrbuf, service, rec->metadata, 1);
714 for (r = rec->records; r; r = r->next)
715 write_subrecord(r, c->wrbuf, service, 1);
716 wrbuf_puts(c->wrbuf, "</record>\n");
717 rs->payload = nmem_strdup(c->nmem, wrbuf_cstr(c->wrbuf));
718 http_send_response(c);
722 static void cmd_record_ready(void *data)
724 struct http_channel *c = (struct http_channel *) data;
729 static void show_records(struct http_channel *c, int active)
731 struct http_request *rq = c->request;
732 struct http_response *rs = c->response;
733 struct http_session *s = locate_session(rq, rs);
734 struct record_cluster **rl;
735 struct reclist_sortparms *sp;
736 const char *start = http_argbyname(rq, "start");
737 const char *num = http_argbyname(rq, "num");
738 const char *sort = http_argbyname(rq, "sort");
748 // We haven't counted clients yet if we're called on a block release
750 active = session_active_clients(s->psession);
753 startn = atoi(start);
758 if (!(sp = reclist_parse_sortparms(c->nmem, sort, s->psession->service)))
760 error(rs, PAZPAR2_MALFORMED_PARAMETER_VALUE, "sort");
764 rl = show(s->psession, sp, startn, &numn, &total, &total_hits, c->nmem);
766 wrbuf_rewind(c->wrbuf);
767 wrbuf_puts(c->wrbuf, HTTP_COMMAND_RESPONSE_PREFIX "<show>\n<status>OK</status>\n");
768 wrbuf_printf(c->wrbuf, "<activeclients>%d</activeclients>\n", active);
769 wrbuf_printf(c->wrbuf, "<merged>%d</merged>\n", total);
770 wrbuf_printf(c->wrbuf, "<total>%d</total>\n", total_hits);
771 wrbuf_printf(c->wrbuf, "<start>%d</start>\n", startn);
772 wrbuf_printf(c->wrbuf, "<num>%d</num>\n", numn);
774 for (i = 0; i < numn; i++)
778 struct record_cluster *rec = rl[i];
779 struct conf_service *service = s->psession->service;
781 wrbuf_puts(c->wrbuf, "<hit>\n");
782 write_metadata(c->wrbuf, service, rec->metadata, 0);
783 for (ccount = 0, p = rl[i]->records; p; p = p->next, ccount++)
784 write_subrecord(p, c->wrbuf, service, 0); // subrecs w/o details
786 wrbuf_printf(c->wrbuf, "<count>%d</count>\n", ccount);
787 if (strstr(sort, "relevance"))
788 wrbuf_printf(c->wrbuf, "<relevance>%d</relevance>\n", rec->relevance);
789 wrbuf_puts(c->wrbuf, "<recid>");
790 wrbuf_xmlputs(c->wrbuf, rec->recid);
791 wrbuf_puts(c->wrbuf, "</recid>\n");
792 wrbuf_puts(c->wrbuf, "</hit>\n");
795 wrbuf_puts(c->wrbuf, "</show>\n");
796 rs->payload = nmem_strdup(c->nmem, wrbuf_cstr(c->wrbuf));
797 http_send_response(c);
800 static void show_records_ready(void *data)
802 struct http_channel *c = (struct http_channel *) data;
807 static void cmd_show(struct http_channel *c)
809 struct http_request *rq = c->request;
810 struct http_response *rs = c->response;
811 struct http_session *s = locate_session(rq, rs);
812 const char *block = http_argbyname(rq, "block");
818 status = session_active_clients(s->psession);
822 if (status && reclist_get_num_records(s->psession->reclist) == 0)
824 // if there is already a watch/block. we do not block this one
825 if (session_set_watch(s->psession, SESSION_WATCH_SHOW,
826 show_records_ready, c, c) != 0)
828 yaz_log(YLOG_DEBUG, "Blocking on cmd_show");
834 show_records(c, status);
837 static void cmd_ping(struct http_channel *c)
839 struct http_request *rq = c->request;
840 struct http_response *rs = c->response;
841 struct http_session *s = locate_session(rq, rs);
844 rs->payload = HTTP_COMMAND_RESPONSE_PREFIX "<ping><status>OK</status></ping>";
845 http_send_response(c);
848 static int utf_8_valid(const char *str)
850 yaz_iconv_t cd = yaz_iconv_open("utf-8", "utf-8");
853 /* check that query is UTF-8 encoded */
854 char *inbuf = (char *) str; /* we know iconv does not alter this */
855 size_t inbytesleft = strlen(inbuf);
857 size_t outbytesleft = strlen(inbuf) + 10;
858 char *out = xmalloc(outbytesleft);
860 size_t r = yaz_iconv(cd, &inbuf, &inbytesleft, &outbuf, &outbytesleft);
862 /* if OK, try flushing the rest */
863 if (r != (size_t) (-1))
864 r = yaz_iconv(cd, 0, 0, &outbuf, &outbytesleft);
867 if (r == (size_t) (-1))
873 static void cmd_search(struct http_channel *c)
875 struct http_request *rq = c->request;
876 struct http_response *rs = c->response;
877 struct http_session *s = locate_session(rq, rs);
878 const char *query = http_argbyname(rq, "query");
879 const char *filter = http_argbyname(rq, "filter");
880 const char *maxrecs = http_argbyname(rq, "maxrecs");
881 const char *startrecs = http_argbyname(rq, "startrecs");
882 enum pazpar2_error_code code;
883 const char *addinfo = 0;
889 error(rs, PAZPAR2_MISSING_PARAMETER, "query");
892 if (!utf_8_valid(query))
894 error(rs, PAZPAR2_MALFORMED_PARAMETER_ENCODING, "query");
897 code = search(s->psession, query, startrecs, maxrecs, filter, &addinfo);
900 error(rs, code, addinfo);
903 rs->payload = HTTP_COMMAND_RESPONSE_PREFIX "<search><status>OK</status></search>";
904 http_send_response(c);
908 static void cmd_stat(struct http_channel *c)
910 struct http_request *rq = c->request;
911 struct http_response *rs = c->response;
912 struct http_session *s = locate_session(rq, rs);
913 struct statistics stat;
921 clients = session_active_clients(s->psession);
922 statistics(s->psession, &stat);
924 if (stat.num_clients > 0) {
925 progress = (stat.num_clients - clients) / (float)stat.num_clients;
928 wrbuf_rewind(c->wrbuf);
929 wrbuf_puts(c->wrbuf, HTTP_COMMAND_RESPONSE_PREFIX "<stat>");
930 wrbuf_printf(c->wrbuf, "<activeclients>%d</activeclients>\n", clients);
931 wrbuf_printf(c->wrbuf, "<hits>%d</hits>\n", stat.num_hits);
932 wrbuf_printf(c->wrbuf, "<records>%d</records>\n", stat.num_records);
933 wrbuf_printf(c->wrbuf, "<clients>%d</clients>\n", stat.num_clients);
934 wrbuf_printf(c->wrbuf, "<unconnected>%d</unconnected>\n", stat.num_no_connection);
935 wrbuf_printf(c->wrbuf, "<connecting>%d</connecting>\n", stat.num_connecting);
936 wrbuf_printf(c->wrbuf, "<working>%d</working>\n", stat.num_working);
937 wrbuf_printf(c->wrbuf, "<idle>%d</idle>\n", stat.num_idle);
938 wrbuf_printf(c->wrbuf, "<failed>%d</failed>\n", stat.num_failed);
939 wrbuf_printf(c->wrbuf, "<error>%d</error>\n", stat.num_error);
940 wrbuf_printf(c->wrbuf, "<progress>%.2f</progress>\n", progress);
941 wrbuf_puts(c->wrbuf, "</stat>");
942 rs->payload = nmem_strdup(c->nmem, wrbuf_cstr(c->wrbuf));
943 http_send_response(c);
946 static void cmd_info(struct http_channel *c)
948 char yaz_version_str[20];
949 struct http_response *rs = c->response;
951 wrbuf_rewind(c->wrbuf);
952 wrbuf_puts(c->wrbuf, HTTP_COMMAND_RESPONSE_PREFIX "<info>\n");
953 wrbuf_puts(c->wrbuf, " <version>\n");
954 wrbuf_puts(c->wrbuf, "<pazpar2");
955 #ifdef PAZPAR2_VERSION_SHA1
956 wrbuf_printf(c->wrbuf, " sha1=\"%s\"", PAZPAR2_VERSION_SHA1);
958 wrbuf_puts(c->wrbuf, ">");
959 wrbuf_xmlputs(c->wrbuf, VERSION);
960 wrbuf_puts(c->wrbuf, "</pazpar2>");
963 yaz_version(yaz_version_str, 0);
964 wrbuf_puts(c->wrbuf, " <yaz compiled=\"");
965 wrbuf_xmlputs(c->wrbuf, YAZ_VERSION);
966 wrbuf_puts(c->wrbuf, "\">");
967 wrbuf_xmlputs(c->wrbuf, yaz_version_str);
968 wrbuf_puts(c->wrbuf, "</yaz>\n");
970 wrbuf_puts(c->wrbuf, " </version>\n");
972 wrbuf_puts(c->wrbuf, "</info>");
973 rs->payload = nmem_strdup(c->nmem, wrbuf_cstr(c->wrbuf));
974 http_send_response(c);
979 void (*fun)(struct http_channel *c);
981 { "init", cmd_init },
982 { "settings", cmd_settings },
983 { "stat", cmd_stat },
984 { "bytarget", cmd_bytarget },
985 { "show", cmd_show },
986 { "search", cmd_search },
987 { "termlist", cmd_termlist },
988 { "exit", cmd_exit },
989 { "ping", cmd_ping },
990 { "record", cmd_record },
991 { "info", cmd_info },
995 void http_command(struct http_channel *c)
997 const char *command = http_argbyname(c->request, "command");
998 struct http_response *rs = http_create_response(c);
1003 http_addheader(rs, "Expires", "Thu, 19 Nov 1981 08:52:00 GMT");
1004 http_addheader(rs, "Cache-Control", "no-store, no-cache, must-revalidate, post-check=0, pre-check=0");
1008 error(rs, PAZPAR2_MISSING_PARAMETER, "command");
1011 for (i = 0; commands[i].name; i++)
1012 if (!strcmp(commands[i].name, command))
1014 (*commands[i].fun)(c);
1017 if (!commands[i].name)
1018 error(rs, PAZPAR2_MALFORMED_PARAMETER_VALUE, "command");
1026 * c-file-style: "Stroustrup"
1027 * indent-tabs-mode: nil
1029 * vim: shiftwidth=4 tabstop=8 expandtab