2 * $Id: http_command.c,v 1.5 2007-01-04 02:53:37 quinn Exp $
14 #include <yaz/yaz-util.h>
21 #include "http_command.h"
23 extern struct parameters global_parameters;
24 extern IOCHAN channel_list;
27 IOCHAN timeout_iochan; // NOTE: This is NOT associated with a socket
28 struct session *psession;
29 unsigned int session_id;
31 struct http_session *next;
34 static struct http_session *session_list = 0;
36 void http_session_destroy(struct http_session *s);
38 static void session_timeout(IOCHAN i, int event)
40 struct http_session *s = iochan_getdata(i);
41 http_session_destroy(s);
44 struct http_session *http_session_create()
46 struct http_session *r = xmalloc(sizeof(*r));
47 r->psession = new_session();
50 r->next = session_list;
52 r->timeout_iochan = iochan_create(-1, session_timeout, 0);
53 iochan_setdata(r->timeout_iochan, r);
54 iochan_settimeout(r->timeout_iochan, global_parameters.session_timeout);
55 r->timeout_iochan->next = channel_list;
56 channel_list = r->timeout_iochan;
60 void http_session_destroy(struct http_session *s)
62 struct http_session **p;
64 for (p = &session_list; *p; p = &(*p)->next)
70 iochan_destroy(s->timeout_iochan);
71 destroy_session(s->psession);
75 static void error(struct http_response *rs, char *code, char *msg, char *txt)
77 struct http_channel *c = rs->channel;
82 rs->msg = nmem_strdup(c->nmem, msg);
83 strcpy(rs->code, code);
84 sprintf(tmp, "<error code=\"general\">%s</error>", txt);
85 rs->payload = nmem_strdup(c->nmem, tmp);
86 http_send_response(c);
89 unsigned int make_sessionid()
96 if (gettimeofday(&t, 0) < 0)
99 res = ((res << 8) | (seq & 0xff)) & ((unsigned int) (1 << 31) - 1);
103 static struct http_session *locate_session(struct http_request *rq, struct http_response *rs)
105 struct http_session *p;
106 char *session = http_argbyname(rq, "session");
111 error(rs, "417", "Must supply session", 0);
115 for (p = session_list; p; p = p->next)
116 if (id == p->session_id)
118 iochan_activity(p->timeout_iochan);
121 error(rs, "417", "Session does not exist, or it has expired", 0);
125 static void cmd_exit(struct http_channel *c)
127 yaz_log(YLOG_WARN, "exit");
132 static void cmd_init(struct http_channel *c)
136 struct http_session *s = http_session_create();
137 struct http_response *rs = c->response;
139 yaz_log(YLOG_DEBUG, "HTTP Session init");
140 sesid = make_sessionid();
141 s->session_id = sesid;
142 sprintf(buf, "<init><status>OK</status><session>%u</session></init>", sesid);
143 rs->payload = nmem_strdup(c->nmem, buf);
144 http_send_response(c);
147 static void cmd_termlist(struct http_channel *c)
149 struct http_response *rs = c->response;
150 struct http_request *rq = c->request;
151 struct http_session *s = locate_session(rq, rs);
152 struct termlist_score **p;
155 char *name = http_argbyname(rq, "name");
156 int status = session_active_clients(s->psession);
163 if (strlen(name) > 255)
166 wrbuf_rewind(c->wrbuf);
168 wrbuf_puts(c->wrbuf, "<termlist>");
169 wrbuf_printf(c->wrbuf, "\n<activeclients>%d</activeclients>", status);
175 if (!(tp = strchr(name, ',')))
176 tp = name + strlen(name);
177 strncpy(tname, name, tp - name);
178 tname[tp - name] = '\0';
180 p = termlist(s->psession, tname, &len);
181 wrbuf_printf(c->wrbuf, "\n<list name=\"%s\">\n", tname);
183 for (i = 0; i < len; i++)
185 wrbuf_puts(c->wrbuf, "\n<term>");
186 wrbuf_printf(c->wrbuf, "<name>%s</name>", p[i]->term);
187 wrbuf_printf(c->wrbuf, "<frequency>%d</frequency>", p[i]->frequency);
188 wrbuf_puts(c->wrbuf, "</term>");
190 wrbuf_puts(c->wrbuf, "\n</list>");
195 wrbuf_puts(c->wrbuf, "</termlist>");
196 rs->payload = nmem_strdup(rq->channel->nmem, wrbuf_buf(c->wrbuf));
197 http_send_response(c);
201 static void cmd_bytarget(struct http_channel *c)
203 struct http_response *rs = c->response;
204 struct http_request *rq = c->request;
205 struct http_session *s = locate_session(rq, rs);
206 struct hitsbytarget *ht;
211 if (!(ht = hitsbytarget(s->psession, &count)))
213 error(rs, "500", "Failed to retrieve hitcounts", 0);
216 wrbuf_rewind(c->wrbuf);
217 wrbuf_puts(c->wrbuf, "<bytarget><status>OK</status>");
219 for (i = 0; i < count; i++)
221 wrbuf_puts(c->wrbuf, "\n<target>");
222 wrbuf_printf(c->wrbuf, "<id>%s</id>\n", ht[i].id);
223 wrbuf_printf(c->wrbuf, "<hits>%d</hits>\n", ht[i].hits);
224 wrbuf_printf(c->wrbuf, "<diagnostic>%d</diagnostic>\n", ht[i].diagnostic);
225 wrbuf_printf(c->wrbuf, "<records>%d</records>\n", ht[i].records);
226 wrbuf_printf(c->wrbuf, "<state>%s</state>\n", ht[i].state);
227 wrbuf_puts(c->wrbuf, "</target>");
230 wrbuf_puts(c->wrbuf, "</bytarget>");
231 rs->payload = nmem_strdup(c->nmem, wrbuf_buf(c->wrbuf));
232 http_send_response(c);
235 static void show_records(struct http_channel *c, int active)
237 struct http_request *rq = c->request;
238 struct http_response *rs = c->response;
239 struct http_session *s = locate_session(rq, rs);
242 char *start = http_argbyname(rq, "start");
243 char *num = http_argbyname(rq, "num");
253 // We haven't counted clients yet if we're called on a block release
255 active = session_active_clients(s->psession);
258 startn = atoi(start);
262 nmem_show = nmem_create();
263 rl = show(s->psession, startn, &numn, &total, &total_hits, nmem_show);
265 wrbuf_rewind(c->wrbuf);
266 wrbuf_puts(c->wrbuf, "<show>\n<status>OK</status>\n");
267 wrbuf_printf(c->wrbuf, "<activeclients>%d</activeclients>\n", active);
268 wrbuf_printf(c->wrbuf, "<merged>%d</merged>\n", total);
269 wrbuf_printf(c->wrbuf, "<total>%d</total>\n", total_hits);
270 wrbuf_printf(c->wrbuf, "<start>%d</start>\n", startn);
271 wrbuf_printf(c->wrbuf, "<num>%d</num>\n", numn);
273 for (i = 0; i < numn; i++)
278 wrbuf_puts(c->wrbuf, "<hit>\n");
279 wrbuf_printf(c->wrbuf, "<title>%s</title>\n", rl[i]->title);
280 for (ccount = 1, p = rl[i]->next_cluster; p; p = p->next_cluster, ccount++)
283 wrbuf_printf(c->wrbuf, "<count>%d</count>\n", ccount);
284 wrbuf_puts(c->wrbuf, "</hit>\n");
287 wrbuf_puts(c->wrbuf, "</show>\n");
288 rs->payload = nmem_strdup(c->nmem, wrbuf_buf(c->wrbuf));
289 http_send_response(c);
290 nmem_destroy(nmem_show);
293 static void show_records_ready(void *data)
295 struct http_channel *c = (struct http_channel *) data;
300 static void cmd_show(struct http_channel *c)
302 struct http_request *rq = c->request;
303 struct http_response *rs = c->response;
304 struct http_session *s = locate_session(rq, rs);
305 char *block = http_argbyname(rq, "block");
306 int status = session_active_clients(s->psession);
313 if (status && (!s->psession->reclist || !s->psession->reclist->num_records))
315 session_set_watch(s->psession, SESSION_WATCH_RECORDS, show_records_ready, c);
316 yaz_log(YLOG_DEBUG, "Blocking on cmd_show");
321 show_records(c, status);
324 static void cmd_ping(struct http_channel *c)
326 struct http_request *rq = c->request;
327 struct http_response *rs = c->response;
328 struct http_session *s = locate_session(rq, rs);
331 rs->payload = "<ping><status>OK</status></ping>";
332 http_send_response(c);
335 static void cmd_search(struct http_channel *c)
337 struct http_request *rq = c->request;
338 struct http_response *rs = c->response;
339 struct http_session *s = locate_session(rq, rs);
340 char *query = http_argbyname(rq, "query");
347 error(rs, "417", "Must supply query", 0);
350 res = search(s->psession, query);
353 error(rs, "417", res, res);
356 rs->payload = "<search><status>OK</status></search>";
357 http_send_response(c);
361 static void cmd_stat(struct http_channel *c)
363 struct http_request *rq = c->request;
364 struct http_response *rs = c->response;
365 struct http_session *s = locate_session(rq, rs);
366 struct statistics stat;
367 int clients = session_active_clients(s->psession);
372 statistics(s->psession, &stat);
374 wrbuf_rewind(c->wrbuf);
375 wrbuf_puts(c->wrbuf, "<stat>");
376 wrbuf_printf(c->wrbuf, "<activeclients>%d</activeclients>\n", clients);
377 wrbuf_printf(c->wrbuf, "<hits>%d</hits>\n", stat.num_hits);
378 wrbuf_printf(c->wrbuf, "<records>%d</records>\n", stat.num_records);
379 wrbuf_printf(c->wrbuf, "<clients>%d</clients>\n", stat.num_clients);
380 wrbuf_printf(c->wrbuf, "<unconnected>%d</unconnected>\n", stat.num_no_connection);
381 wrbuf_printf(c->wrbuf, "<connecting>%d</connecting>\n", stat.num_connecting);
382 wrbuf_printf(c->wrbuf, "<initializing>%d</initializing>\n", stat.num_initializing);
383 wrbuf_printf(c->wrbuf, "<searching>%d</searching>\n", stat.num_searching);
384 wrbuf_printf(c->wrbuf, "<presenting>%d</presenting>\n", stat.num_presenting);
385 wrbuf_printf(c->wrbuf, "<idle>%d</idle>\n", stat.num_idle);
386 wrbuf_printf(c->wrbuf, "<failed>%d</failed>\n", stat.num_failed);
387 wrbuf_printf(c->wrbuf, "<error>%d</error>\n", stat.num_error);
388 wrbuf_puts(c->wrbuf, "</stat>");
389 rs->payload = nmem_strdup(c->nmem, wrbuf_buf(c->wrbuf));
390 http_send_response(c);
396 void (*fun)(struct http_channel *c);
398 { "init", cmd_init },
399 { "stat", cmd_stat },
400 { "bytarget", cmd_bytarget },
401 { "show", cmd_show },
402 { "search", cmd_search },
403 { "termlist", cmd_termlist },
404 { "exit", cmd_exit },
405 { "ping", cmd_ping },
409 void http_command(struct http_channel *c)
411 char *command = http_argbyname(c->request, "command");
412 struct http_response *rs = http_create_response(c);
418 error(rs, "417", "Must supply command", 0);
421 for (i = 0; commands[i].name; i++)
422 if (!strcmp(commands[i].name, command))
424 (*commands[i].fun)(c);
427 if (!commands[i].name)
428 error(rs, "417", "Unknown command", 0);
436 * indent-tabs-mode: nil
438 * vim: shiftwidth=4 tabstop=8 expandtab