#include <yaz/snprintf.h>
#include <yaz/yaz-util.h>
+#include "ppmutex.h"
#include "eventl.h"
#include "parameters.h"
-#include "pazpar2.h"
+#include "session.h"
#include "http.h"
#include "settings.h"
#include "client.h"
struct session *psession;
unsigned int session_id;
int timestamp;
+ int destroy_counter;
+ int activity_counter;
NMEM nmem;
+ http_sessions_t http_sessions;
struct http_session *next;
};
-static struct http_session *session_list = 0; /* thread pr */
+struct http_sessions {
+ struct http_session *session_list;
+ YAZ_MUTEX mutex;
+ int log_level;
+};
+
+http_sessions_t http_sessions_create(void)
+{
+ http_sessions_t hs = xmalloc(sizeof(*hs));
+ hs->session_list = 0;
+ hs->mutex = 0;
+ pazpar2_mutex_create(&hs->mutex, "http_sessions");
+ hs->log_level = yaz_log_module_level("HTTP");
+ return hs;
+}
+
+void http_sessions_destroy(http_sessions_t hs)
+{
+ if (hs)
+ {
+ struct http_session *s = hs->session_list;
+ while (s)
+ {
+ struct http_session *s_next = s->next;
+ iochan_destroy(s->timeout_iochan);
+ destroy_session(s->psession);
+ nmem_destroy(s->nmem);
+ s = s_next;
+ }
+ yaz_mutex_destroy(&hs->mutex);
+ xfree(hs);
+ }
+}
void http_session_destroy(struct http_session *s);
http_session_destroy(s);
}
-struct http_session *http_session_create(struct conf_service *service)
+struct http_session *http_session_create(struct conf_service *service,
+ http_sessions_t http_sessions,
+ unsigned int sesid)
{
NMEM nmem = nmem_create();
struct http_session *r = nmem_malloc(nmem, sizeof(*r));
+ char tmp_str[50];
- r->psession = new_session(nmem, service);
- r->session_id = 0;
+ sprintf(tmp_str, "session#%u", sesid);
+ r->psession = new_session(nmem, service, tmp_str);
+ r->session_id = sesid;
r->timestamp = 0;
r->nmem = nmem;
- r->next = session_list;
- session_list = r;
- r->timeout_iochan = iochan_create(-1, session_timeout, 0);
+ r->destroy_counter = r->activity_counter = 0;
+ r->http_sessions = http_sessions;
+
+ yaz_mutex_enter(http_sessions->mutex);
+ r->next = http_sessions->session_list;
+ http_sessions->session_list = r;
+ yaz_mutex_leave(http_sessions->mutex);
+
+ r->timeout_iochan = iochan_create(-1, session_timeout, 0, "http_session_timeout");
iochan_setdata(r->timeout_iochan, r);
+ yaz_log(http_sessions->log_level, "%p Session %u created. timeout chan=%p timeout=%d", r, sesid, r->timeout_iochan, service->session_timeout);
iochan_settimeout(r->timeout_iochan, service->session_timeout);
- pazpar2_add_channel(r->timeout_iochan);
+ iochan_add(service->server->iochan_man, r->timeout_iochan);
return r;
}
void http_session_destroy(struct http_session *s)
{
- struct http_session **p;
+ int must_destroy = 0;
+
+ http_sessions_t http_sessions = s->http_sessions;
+
+ yaz_log(http_sessions->log_level, "%p Session %u destroyed", s, s->session_id);
+ yaz_mutex_enter(http_sessions->mutex);
+ /* only if http_session has no active http sessions on it can be destroyed */
+ if (s->destroy_counter == s->activity_counter) {
+ struct http_session **p = 0;
+ must_destroy = 1;
+ for (p = &http_sessions->session_list; *p; p = &(*p)->next)
+ if (*p == s)
+ {
+ *p = (*p)->next;
+ break;
+ }
+ }
+ yaz_mutex_leave(http_sessions->mutex);
+ if (must_destroy)
+ { /* destroying for real */
+ yaz_log(http_sessions->log_level, "%p Session %u destroyed", s, s->session_id);
+ iochan_destroy(s->timeout_iochan);
+ destroy_session(s->psession);
+ nmem_destroy(s->nmem);
+ }
+ else {
+ yaz_log(http_sessions->log_level, "%p Session %u destroyed delayed. Active clients (%d-%d). Waiting for new timeout.",
+ s, s->session_id, s->activity_counter, s->destroy_counter);
+ }
- for (p = &session_list; *p; p = &(*p)->next)
- if (*p == s)
- {
- *p = (*p)->next;
- break;
- }
- yaz_log(YLOG_LOG, "Destroying session %u", s->session_id);
- iochan_destroy(s->timeout_iochan);
- destroy_session(s->psession);
- nmem_destroy(s->nmem);
}
static const char *get_msg(enum pazpar2_error_code code)
{ PAZPAR2_CONFIG_TARGET, "Target cannot be configured"},
{ PAZPAR2_RECORD_FAIL, "Record command failed"},
{ PAZPAR2_NOT_IMPLEMENTED, "Not implemented"},
+ { PAZPAR2_NO_SERVICE, "No service"},
{ PAZPAR2_LAST_ERROR, "Last error"},
{ 0, 0 }
};
return res;
}
-static struct http_session *locate_session(struct http_request *rq, struct http_response *rs)
+static struct http_session *locate_session(struct http_channel *c)
{
+ struct http_response *rs = c->response;
+ struct http_request *rq = c->request;
struct http_session *p;
const char *session = http_argbyname(rq, "session");
+ http_sessions_t http_sessions = c->http_sessions;
unsigned int id;
if (!session)
return 0;
}
id = atoi(session);
- for (p = session_list; p; p = p->next)
+ yaz_mutex_enter(http_sessions->mutex);
+ for (p = http_sessions->session_list; p; p = p->next)
if (id == p->session_id)
- {
- iochan_activity(p->timeout_iochan);
- return p;
- }
- error(rs, PAZPAR2_NO_SESSION, session);
- return 0;
+ break;
+ if (p)
+ p->activity_counter++;
+ yaz_mutex_leave(http_sessions->mutex);
+ if (p)
+ iochan_activity(p->timeout_iochan);
+ else
+ error(rs, PAZPAR2_NO_SESSION, session);
+ return p;
+}
+
+// Call after use of locate_session, in order to increment the destroy_counter
+static void release_session(struct http_channel *c, struct http_session *session) {
+ http_sessions_t http_sessions = c->http_sessions;
+ yaz_mutex_enter(http_sessions->mutex);
+ if (session)
+ session->destroy_counter++;
+ yaz_mutex_leave(http_sessions->mutex);
}
// Decode settings parameters and apply to session
service = locate_service(c->server, service_name);
if (!service)
{
- error(rs, PAZPAR2_MALFORMED_PARAMETER_VALUE, "service");
+ error(rs, PAZPAR2_NO_SERVICE, service_name ? service_name : "unnamed");
return;
}
- service_incref(service);
}
- s = http_session_create(service);
+ sesid = make_sessionid();
+ s = http_session_create(service, c->http_sessions, sesid);
- yaz_log(YLOG_DEBUG, "HTTP Session init");
+ yaz_log(c->http_sessions->log_level, "%p Session init %u ", s, sesid);
if (!clear || *clear == '0')
session_init_databases(s->psession);
else
- yaz_log(YLOG_LOG, "No databases preloaded");
+ yaz_log(YLOG_LOG, "HTTP Session %u init: No databases preloaded", sesid);
- sesid = make_sessionid();
- s->session_id = sesid;
if (process_settings(s->psession, c->request, c->response) < 0)
return;
- sprintf(buf, HTTP_COMMAND_RESPONSE_PREFIX "<init><status>OK</status><session>%u</session>"
- "<protocol>" PAZPAR2_PROTOCOL_VERSION "</protocol></init>", sesid);
+
+ sprintf(buf, HTTP_COMMAND_RESPONSE_PREFIX
+ "<init><status>OK</status><session>%d", sesid);
+ if (c->server->server_id)
+ {
+ strcat(buf, ".");
+ strcat(buf, c->server->server_id);
+ }
+ strcat(buf, "</session>"
+ "<protocol>" PAZPAR2_PROTOCOL_VERSION "</protocol></init>");
rs->payload = nmem_strdup(c->nmem, buf);
http_send_response(c);
}
{
struct http_response *rs = c->response;
struct http_request *rq = c->request;
- struct http_session *s = locate_session(rq, rs);
+ struct http_session *s = locate_session(c);
const char *content_type = http_lookup_header(rq->headers, "Content-Type");
if (!s)
xmlFreeDoc(doc);
}
- if (process_settings(s->psession, rq, rs) < 0)
+ if (process_settings(s->psession, rq, rs) < 0) {
+ release_session(c,s);
return;
+ }
rs->payload = HTTP_COMMAND_RESPONSE_PREFIX "<settings><status>OK</status></settings>";
http_send_response(c);
+ release_session(c,s);
}
// Compares two hitsbytarget nodes by hitcount
}
// This implements functionality somewhat similar to 'bytarget', but in a termlist form
-static void targets_termlist(WRBUF wrbuf, struct session *se, int num,
+static int targets_termlist(WRBUF wrbuf, struct session *se, int num,
NMEM nmem)
{
struct hitsbytarget *ht;
ht[i].diagnostic);
wrbuf_puts(wrbuf, "</term>\n");
}
+ return count;
}
static void cmd_termlist(struct http_channel *c)
{
struct http_response *rs = c->response;
struct http_request *rq = c->request;
- struct http_session *s = locate_session(rq, rs);
+ struct http_session *s = locate_session(c);
struct termlist_score **p;
int len;
int i;
const char *nums = http_argbyname(rq, "num");
int num = 15;
int status;
+ WRBUF debug_log = wrbuf_alloc();
if (!s)
return;
tp = name + strlen(name);
strncpy(tname, name, tp - name);
tname[tp - name] = '\0';
-
wrbuf_puts(c->wrbuf, "<list name=\"");
wrbuf_xmlputs(c->wrbuf, tname);
wrbuf_puts(c->wrbuf, "\">\n");
- if (!strcmp(tname, "xtargets"))
- targets_termlist(c->wrbuf, s->psession, num, c->nmem);
+ if (!strcmp(tname, "xtargets")) {
+ int targets = targets_termlist(c->wrbuf, s->psession, num, c->nmem);
+ wrbuf_printf(debug_log, " xtargets: %d", targets);
+ }
else
{
p = termlist(s->psession, tname, &len);
- if (p)
+ if (p && len)
+ wrbuf_printf(debug_log, " %s: %d", tname, len);
+ if (p) {
for (i = 0; i < len && i < num; i++){
// prevnt sending empty term elements
if (!p[i]->term || !p[i]->term[0])
p[i]->frequency);
wrbuf_puts(c->wrbuf, "</term>\n");
}
+ }
}
wrbuf_puts(c->wrbuf, "</list>\n");
name = tp;
name++;
}
wrbuf_puts(c->wrbuf, "</termlist>\n");
+ yaz_log(YLOG_DEBUG, "termlist response: %s ", wrbuf_cstr(debug_log));
+ wrbuf_destroy(debug_log);
rs->payload = nmem_strdup(rq->channel->nmem, wrbuf_cstr(c->wrbuf));
http_send_response(c);
+ release_session(c,s);
}
{
struct http_response *rs = c->response;
struct http_request *rq = c->request;
- struct http_session *s = locate_session(rq, rs);
+ struct http_session *s = locate_session(c);
struct hitsbytarget *ht;
const char *settings = http_argbyname(rq, "settings");
int count, i;
wrbuf_puts(c->wrbuf, "</bytarget>");
rs->payload = nmem_strdup(c->nmem, wrbuf_cstr(c->wrbuf));
http_send_response(c);
+ release_session(c,s);
}
static void write_metadata(WRBUF w, struct conf_service *service,
{
struct http_response *rs = c->response;
struct http_request *rq = c->request;
- struct http_session *s = locate_session(rq, rs);
+ struct http_session *s = locate_session(c);
struct record_cluster *rec, *prev_r, *next_r;
struct record *r;
struct conf_service *service;
return;
}
wrbuf_rewind(c->wrbuf);
- if (!(rec = show_single(s->psession, idstr, &prev_r, &next_r)))
+ if (!(rec = show_single_start(s->psession, idstr, &prev_r, &next_r)))
{
if (session_active_clients(s->psession) == 0)
{
{
error(rs, PAZPAR2_RECORD_MISSING, idstr);
}
+ release_session(c, s);
return;
}
if (offsetstr)
if (!r)
{
error(rs, PAZPAR2_RECORD_FAIL, "no record at offset given");
- return;
}
else
{
rs->payload = nmem_strdup(c->nmem, wrbuf_cstr(c->wrbuf));
http_send_response(c);
}
+ show_single_stop(s->psession, rec);
+ release_session(c, s);
}
static void cmd_record_ready(void *data)
{
struct http_request *rq = c->request;
struct http_response *rs = c->response;
- struct http_session *s = locate_session(rq, rs);
+ struct http_session *s = locate_session(c);
struct record_cluster **rl;
struct reclist_sortparms *sp;
const char *start = http_argbyname(rq, "start");
if (!(sp = reclist_parse_sortparms(c->nmem, sort, s->psession->service)))
{
error(rs, PAZPAR2_MALFORMED_PARAMETER_VALUE, "sort");
+ release_session(c, s);
return;
}
- rl = show(s->psession, sp, startn, &numn, &total, &total_hits, c->nmem);
+
+ rl = show_range_start(s->psession, sp, startn, &numn, &total, &total_hits);
wrbuf_rewind(c->wrbuf);
wrbuf_puts(c->wrbuf, HTTP_COMMAND_RESPONSE_PREFIX "<show>\n<status>OK</status>\n");
if (ccount > 1)
wrbuf_printf(c->wrbuf, "<count>%d</count>\n", ccount);
if (strstr(sort, "relevance"))
- wrbuf_printf(c->wrbuf, "<relevance>%d</relevance>\n", rec->relevance);
+ wrbuf_printf(c->wrbuf, "<relevance>%d</relevance>\n",
+ rec->relevance_score);
wrbuf_puts(c->wrbuf, "<recid>");
wrbuf_xmlputs(c->wrbuf, rec->recid);
wrbuf_puts(c->wrbuf, "</recid>\n");
wrbuf_puts(c->wrbuf, "</hit>\n");
}
+ show_range_stop(s->psession, rl);
+
wrbuf_puts(c->wrbuf, "</show>\n");
rs->payload = nmem_strdup(c->nmem, wrbuf_cstr(c->wrbuf));
http_send_response(c);
+ release_session(c, s);
}
static void show_records_ready(void *data)
static void cmd_show(struct http_channel *c)
{
struct http_request *rq = c->request;
- struct http_response *rs = c->response;
- struct http_session *s = locate_session(rq, rs);
+ struct http_session *s = locate_session(c);
const char *block = http_argbyname(rq, "block");
int status;
if (session_set_watch(s->psession, SESSION_WATCH_SHOW,
show_records_ready, c, c) != 0)
{
- yaz_log(YLOG_DEBUG, "Blocking on cmd_show");
+ yaz_log(c->http_sessions->log_level, "%p Session %u: Blocking on cmd_show", s, s->session_id);
}
+ release_session(c,s);
return;
}
}
-
show_records(c, status);
+ release_session(c,s);
}
static void cmd_ping(struct http_channel *c)
{
- struct http_request *rq = c->request;
struct http_response *rs = c->response;
- struct http_session *s = locate_session(rq, rs);
+ struct http_session *s = locate_session(c);
if (!s)
return;
rs->payload = HTTP_COMMAND_RESPONSE_PREFIX "<ping><status>OK</status></ping>";
http_send_response(c);
+ release_session(c, s);
}
static int utf_8_valid(const char *str)
{
struct http_request *rq = c->request;
struct http_response *rs = c->response;
- struct http_session *s = locate_session(rq, rs);
+ struct http_session *s = locate_session(c);
const char *query = http_argbyname(rq, "query");
const char *filter = http_argbyname(rq, "filter");
const char *maxrecs = http_argbyname(rq, "maxrecs");
if (!query)
{
error(rs, PAZPAR2_MISSING_PARAMETER, "query");
+ release_session(c,s);
return;
}
if (!utf_8_valid(query))
{
error(rs, PAZPAR2_MALFORMED_PARAMETER_ENCODING, "query");
+ release_session(c,s);
return;
}
code = search(s->psession, query, startrecs, maxrecs, filter, &addinfo);
if (code)
{
error(rs, code, addinfo);
+ release_session(c,s);
return;
}
rs->payload = HTTP_COMMAND_RESPONSE_PREFIX "<search><status>OK</status></search>";
http_send_response(c);
+ release_session(c,s);
}
static void cmd_stat(struct http_channel *c)
{
- struct http_request *rq = c->request;
struct http_response *rs = c->response;
- struct http_session *s = locate_session(rq, rs);
+ struct http_session *s = locate_session(c);
struct statistics stat;
int clients;
wrbuf_puts(c->wrbuf, "</stat>");
rs->payload = nmem_strdup(c->nmem, wrbuf_cstr(c->wrbuf));
http_send_response(c);
+ release_session(c,s);
}
static void cmd_info(struct http_channel *c)
projects / pazpar2-moved-to-github.git / blobdiff