2 * $Id: http_command.c,v 1.2 2006-12-20 22:19:35 adam 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;
158 wrbuf_rewind(c->wrbuf);
160 wrbuf_puts(c->wrbuf, "<termlist>");
161 p = termlist(s->psession, &len);
163 for (i = 0; i < len; i++)
165 wrbuf_puts(c->wrbuf, "\n<term>");
166 wrbuf_printf(c->wrbuf, "<name>%s</name>", p[i]->term);
167 wrbuf_printf(c->wrbuf, "<frequency>%d</frequency>", p[i]->frequency);
168 wrbuf_puts(c->wrbuf, "</term>");
170 wrbuf_puts(c->wrbuf, "</termlist>");
171 rs->payload = nmem_strdup(rq->channel->nmem, wrbuf_buf(c->wrbuf));
172 http_send_response(c);
176 static void cmd_bytarget(struct http_channel *c)
178 struct http_response *rs = c->response;
179 struct http_request *rq = c->request;
180 struct http_session *s = locate_session(rq, rs);
181 struct hitsbytarget *ht;
186 if (!(ht = hitsbytarget(s->psession, &count)))
188 error(rs, "500", "Failed to retrieve hitcounts", 0);
191 wrbuf_rewind(c->wrbuf);
192 wrbuf_puts(c->wrbuf, "<bytarget><status>OK</status>");
194 for (i = 0; i < count; i++)
196 wrbuf_puts(c->wrbuf, "\n<target>");
197 wrbuf_printf(c->wrbuf, "<id>%s</id>\n", ht[i].id);
198 wrbuf_printf(c->wrbuf, "<hits>%d</hits>\n", ht[i].hits);
199 wrbuf_printf(c->wrbuf, "<diagnostic>%d</diagnostic>\n", ht[i].diagnostic);
200 wrbuf_printf(c->wrbuf, "<records>%d</records>\n", ht[i].records);
201 wrbuf_printf(c->wrbuf, "<state>%s</state>\n", ht[i].state);
202 wrbuf_puts(c->wrbuf, "</target>");
205 wrbuf_puts(c->wrbuf, "</bytarget>");
206 rs->payload = nmem_strdup(c->nmem, wrbuf_buf(c->wrbuf));
207 http_send_response(c);
210 static void show_records(struct http_channel *c)
212 struct http_request *rq = c->request;
213 struct http_response *rs = c->response;
214 struct http_session *s = locate_session(rq, rs);
217 char *start = http_argbyname(rq, "start");
218 char *num = http_argbyname(rq, "num");
229 startn = atoi(start);
233 nmem_show = nmem_create();
234 rl = show(s->psession, startn, &numn, &total, &total_hits, nmem_show);
236 wrbuf_rewind(c->wrbuf);
237 wrbuf_puts(c->wrbuf, "<show>\n<status>OK</status>\n");
238 wrbuf_printf(c->wrbuf, "<merged>%d</merged>\n", total);
239 wrbuf_printf(c->wrbuf, "<total>%d</total>\n", total_hits);
240 wrbuf_printf(c->wrbuf, "<start>%d</start>\n", startn);
241 wrbuf_printf(c->wrbuf, "<num>%d</num>\n", numn);
243 for (i = 0; i < numn; i++)
248 wrbuf_puts(c->wrbuf, "<hit>\n");
249 wrbuf_printf(c->wrbuf, "<title>%s</title>\n", rl[i]->title);
250 for (ccount = 1, p = rl[i]->next_cluster; p; p = p->next_cluster, ccount++)
253 wrbuf_printf(c->wrbuf, "<count>%d</count>\n", ccount);
254 wrbuf_puts(c->wrbuf, "</hit>\n");
257 wrbuf_puts(c->wrbuf, "</show>\n");
258 rs->payload = nmem_strdup(c->nmem, wrbuf_buf(c->wrbuf));
259 http_send_response(c);
260 nmem_destroy(nmem_show);
263 static void show_records_ready(void *data)
265 struct http_channel *c = (struct http_channel *) data;
270 static void cmd_show(struct http_channel *c)
272 struct http_request *rq = c->request;
273 struct http_response *rs = c->response;
274 struct http_session *s = locate_session(rq, rs);
275 char *block = http_argbyname(rq, "block");
282 if (!s->psession->reclist || !s->psession->reclist->num_records)
284 session_set_watch(s->psession, SESSION_WATCH_RECORDS, show_records_ready, c);
285 yaz_log(YLOG_DEBUG, "Blocking on cmd_show");
293 static void cmd_ping(struct http_channel *c)
295 struct http_request *rq = c->request;
296 struct http_response *rs = c->response;
297 struct http_session *s = locate_session(rq, rs);
300 rs->payload = "<ping><status>OK</status></ping>";
301 http_send_response(c);
304 static void cmd_search(struct http_channel *c)
306 struct http_request *rq = c->request;
307 struct http_response *rs = c->response;
308 struct http_session *s = locate_session(rq, rs);
309 char *query = http_argbyname(rq, "query");
316 error(rs, "417", "Must supply query", 0);
319 res = search(s->psession, query);
322 error(rs, "417", res, res);
325 rs->payload = "<search><status>OK</status></search>";
326 http_send_response(c);
330 static void cmd_stat(struct http_channel *c)
332 struct http_request *rq = c->request;
333 struct http_response *rs = c->response;
334 struct http_session *s = locate_session(rq, rs);
335 struct statistics stat;
340 statistics(s->psession, &stat);
342 wrbuf_rewind(c->wrbuf);
343 wrbuf_puts(c->wrbuf, "<stat>");
344 wrbuf_printf(c->wrbuf, "<hits>%d</hits>\n", stat.num_hits);
345 wrbuf_printf(c->wrbuf, "<records>%d</records>\n", stat.num_records);
346 wrbuf_printf(c->wrbuf, "<clients>%d</clients>\n", stat.num_clients);
347 wrbuf_printf(c->wrbuf, "<unconnected>%d</unconnected>\n", stat.num_no_connection);
348 wrbuf_printf(c->wrbuf, "<connecting>%d</connecting>\n", stat.num_connecting);
349 wrbuf_printf(c->wrbuf, "<initializing>%d</initializing>\n", stat.num_initializing);
350 wrbuf_printf(c->wrbuf, "<searching>%d</searching>\n", stat.num_searching);
351 wrbuf_printf(c->wrbuf, "<presenting>%d</presenting>\n", stat.num_presenting);
352 wrbuf_printf(c->wrbuf, "<idle>%d</idle>\n", stat.num_idle);
353 wrbuf_printf(c->wrbuf, "<failed>%d</failed>\n", stat.num_failed);
354 wrbuf_printf(c->wrbuf, "<error>%d</error>\n", stat.num_error);
355 wrbuf_puts(c->wrbuf, "</stat>");
356 rs->payload = nmem_strdup(c->nmem, wrbuf_buf(c->wrbuf));
357 http_send_response(c);
363 void (*fun)(struct http_channel *c);
365 { "init", cmd_init },
366 { "stat", cmd_stat },
367 { "bytarget", cmd_bytarget },
368 { "show", cmd_show },
369 { "search", cmd_search },
370 { "termlist", cmd_termlist },
371 { "exit", cmd_exit },
372 { "ping", cmd_ping },
376 void http_command(struct http_channel *c)
378 char *command = http_argbyname(c->request, "command");
379 struct http_response *rs = http_create_response(c);
385 error(rs, "417", "Must supply command", 0);
388 for (i = 0; commands[i].name; i++)
389 if (!strcmp(commands[i].name, command))
391 (*commands[i].fun)(c);
394 if (!commands[i].name)
395 error(rs, "417", "Unknown command", 0);
403 * indent-tabs-mode: nil
405 * vim: shiftwidth=4 tabstop=8 expandtab