-/*
- * $Id: http_command.c,v 1.1 2006-12-20 20:47:16 quinn Exp $
- */
+/* This file is part of Pazpar2.
+ Copyright (C) 2006-2009 Index Data
+
+Pazpar2 is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 2, or (at your option) any later
+version.
+
+Pazpar2 is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+*/
+#if HAVE_CONFIG_H
+#include <config.h>
+#endif
#include <stdio.h>
#include <sys/types.h>
-#include <sys/uio.h>
+#if HAVE_UNISTD_H
#include <unistd.h>
+#endif
#include <stdlib.h>
-#include <strings.h>
-#include <ctype.h>
+#include <string.h>
+#if HAVE_SYS_TIME_H
#include <sys/time.h>
-
+#endif
+#include <yaz/snprintf.h>
#include <yaz/yaz-util.h>
-#include "command.h"
-#include "util.h"
#include "eventl.h"
+#include "parameters.h"
#include "pazpar2.h"
#include "http.h"
-#include "http_command.h"
+#include "settings.h"
+#include "client.h"
-extern struct parameters global_parameters;
-extern IOCHAN channel_list;
+// Update this when the protocol changes
+#define PAZPAR2_PROTOCOL_VERSION "1"
struct http_session {
IOCHAN timeout_iochan; // NOTE: This is NOT associated with a socket
struct session *psession;
unsigned int session_id;
int timestamp;
+ NMEM nmem;
struct http_session *next;
};
-static struct http_session *session_list = 0;
+static struct http_session *session_list = 0; /* thread pr */
void http_session_destroy(struct http_session *s);
http_session_destroy(s);
}
-struct http_session *http_session_create()
+struct http_session *http_session_create(struct conf_service *service)
{
- struct http_session *r = xmalloc(sizeof(*r));
- r->psession = new_session();
+ NMEM nmem = nmem_create();
+ struct http_session *r = nmem_malloc(nmem, sizeof(*r));
+
+ r->psession = new_session(nmem, service);
r->session_id = 0;
r->timestamp = 0;
+ r->nmem = nmem;
r->next = session_list;
session_list = r;
r->timeout_iochan = iochan_create(-1, session_timeout, 0);
iochan_setdata(r->timeout_iochan, r);
- iochan_settimeout(r->timeout_iochan, global_parameters.session_timeout);
- r->timeout_iochan->next = channel_list;
- channel_list = r->timeout_iochan;
+ iochan_settimeout(r->timeout_iochan, service->session_timeout);
+
+ pazpar2_add_channel(r->timeout_iochan);
return r;
}
*p = (*p)->next;
break;
}
+ yaz_log(YLOG_LOG, "Destroying session %u", s->session_id);
iochan_destroy(s->timeout_iochan);
destroy_session(s->psession);
- xfree(s);
+ nmem_destroy(s->nmem);
}
-static void error(struct http_response *rs, char *code, char *msg, char *txt)
+static const char *get_msg(enum pazpar2_error_code code)
{
- struct http_channel *c = rs->channel;
- char tmp[1024];
+ struct pazpar2_error_msg {
+ enum pazpar2_error_code code;
+ const char *msg;
+ };
+ static const struct pazpar2_error_msg ar[] = {
+ { PAZPAR2_NO_SESSION, "Session does not exist or it has expired"},
+ { PAZPAR2_MISSING_PARAMETER, "Missing parameter"},
+ { PAZPAR2_MALFORMED_PARAMETER_VALUE, "Malformed parameter value"},
+ { PAZPAR2_MALFORMED_PARAMETER_ENCODING, "Malformed parameter encoding"},
+ { PAZPAR2_MALFORMED_SETTING, "Malformed setting argument"},
+ { PAZPAR2_HITCOUNTS_FAILED, "Failed to retrieve hitcounts"},
+ { PAZPAR2_RECORD_MISSING, "Record missing"},
+ { PAZPAR2_NO_TARGETS, "No targets"},
+ { PAZPAR2_CONFIG_TARGET, "Target cannot be configured"},
+ { PAZPAR2_RECORD_FAIL, "Record command failed"},
+ { PAZPAR2_NOT_IMPLEMENTED, "Not implemented"},
+ { PAZPAR2_LAST_ERROR, "Last error"},
+ { 0, 0 }
+ };
+ int i = 0;
+ while (ar[i].msg)
+ {
+ if (code == ar[i].code)
+ return ar[i].msg;
+ i++;
+ }
+ return "No error";
+}
- if (!txt)
- txt = msg;
+static void error(struct http_response *rs,
+ enum pazpar2_error_code code,
+ const char *addinfo)
+{
+ struct http_channel *c = rs->channel;
+ WRBUF text = wrbuf_alloc();
+ const char *http_status = "417";
+ const char *msg = get_msg(code);
+
rs->msg = nmem_strdup(c->nmem, msg);
- strcpy(rs->code, code);
- sprintf(tmp, "<error code=\"general\">%s</error>", txt);
- rs->payload = nmem_strdup(c->nmem, tmp);
+ strcpy(rs->code, http_status);
+
+ wrbuf_printf(text, "<error code=\"%d\" msg=\"%s\">", (int) code,
+ msg);
+ if (addinfo)
+ wrbuf_xmlputs(text, addinfo);
+ wrbuf_puts(text, "</error>");
+
+ yaz_log(YLOG_WARN, "HTTP %s %s%s%s", http_status,
+ msg, addinfo ? ": " : "" , addinfo ? addinfo : "");
+ rs->payload = nmem_strdup(c->nmem, wrbuf_cstr(text));
+ wrbuf_destroy(text);
http_send_response(c);
}
-unsigned int make_sessionid()
+unsigned int make_sessionid(void)
{
- struct timeval t;
+ static int seq = 0; /* thread pr */
unsigned int res;
- static int seq = 0;
seq++;
- if (gettimeofday(&t, 0) < 0)
- abort();
- res = t.tv_sec;
- res = ((res << 8) | (seq & 0xff)) & ((unsigned int) (1 << 31) - 1);
+ if (global_parameters.debug_mode)
+ res = seq;
+ else
+ {
+#ifdef WIN32
+ res = seq;
+#else
+ struct timeval t;
+
+ if (gettimeofday(&t, 0) < 0)
+ {
+ yaz_log(YLOG_WARN|YLOG_ERRNO, "gettimeofday");
+ exit(1);
+ }
+ /* at most 256 sessions per second ..
+ (long long would be more appropriate)*/
+ res = t.tv_sec;
+ res = ((res << 8) | (seq & 0xff)) & ((1U << 31) - 1);
+#endif
+ }
return res;
}
static struct http_session *locate_session(struct http_request *rq, struct http_response *rs)
{
struct http_session *p;
- char *session = http_argbyname(rq, "session");
+ const char *session = http_argbyname(rq, "session");
unsigned int id;
if (!session)
{
- error(rs, "417", "Must supply session", 0);
+ error(rs, PAZPAR2_MISSING_PARAMETER, "session");
return 0;
}
id = atoi(session);
iochan_activity(p->timeout_iochan);
return p;
}
- error(rs, "417", "Session does not exist, or it has expired", 0);
+ error(rs, PAZPAR2_NO_SESSION, session);
+ return 0;
+}
+
+// Decode settings parameters and apply to session
+// Syntax: setting[target]=value
+static int process_settings(struct session *se, struct http_request *rq,
+ struct http_response *rs)
+{
+ struct http_argument *a;
+
+ for (a = rq->arguments; a; a = a->next)
+ if (strchr(a->name, '['))
+ {
+ char **res;
+ int num;
+ char *dbname;
+ char *setting;
+
+ // Nmem_strsplit *rules*!!!
+ nmem_strsplit(se->session_nmem, "[]", a->name, &res, &num);
+ if (num != 2)
+ {
+ error(rs, PAZPAR2_MALFORMED_SETTING, a->name);
+ return -1;
+ }
+ setting = res[0];
+ dbname = res[1];
+ session_apply_setting(se, dbname, setting,
+ nmem_strdup(se->session_nmem, a->value));
+ }
return 0;
}
static void cmd_exit(struct http_channel *c)
{
yaz_log(YLOG_WARN, "exit");
- exit(0);
+ http_close_server(c->server);
}
-
static void cmd_init(struct http_channel *c)
{
- unsigned int sesid;
char buf[1024];
- struct http_session *s = http_session_create();
+ struct http_request *r = c->request;
+ const char *clear = http_argbyname(r, "clear");
+ const char *content_type = http_lookup_header(r->headers, "Content-Type");
+ unsigned int sesid;
+ struct http_session *s;
struct http_response *rs = c->response;
-
+ struct conf_service *service;
+
+ if (content_type && !yaz_strcmp_del("text/xml", content_type, "; "))
+ {
+ xmlDoc *doc = xmlParseMemory(r->content_buf, r->content_len);
+ xmlNode *root_n;
+ if (!doc)
+ {
+ error(rs, PAZPAR2_MALFORMED_SETTING, 0);
+ return;
+ }
+ root_n = xmlDocGetRootElement(doc);
+ service = service_create(c->server, root_n);
+ xmlFreeDoc(doc);
+ }
+ else
+ {
+ const char *service_name = http_argbyname(c->request, "service");
+ service = locate_service(c->server, service_name);
+ if (!service)
+ {
+ error(rs, PAZPAR2_MALFORMED_PARAMETER_VALUE, "service");
+ return;
+ }
+ service_incref(service);
+ }
+ s = http_session_create(service);
+
yaz_log(YLOG_DEBUG, "HTTP Session init");
+ if (!clear || *clear == '0')
+ session_init_databases(s->psession);
+ else
+ yaz_log(YLOG_LOG, "No databases preloaded");
+
sesid = make_sessionid();
s->session_id = sesid;
- sprintf(buf, "<init><status>OK</status><session>%u</session></init>", sesid);
+ if (process_settings(s->psession, c->request, c->response) < 0)
+ return;
+ sprintf(buf, "<init><status>OK</status><session>%u</session>"
+ "<protocol>" PAZPAR2_PROTOCOL_VERSION "</protocol></init>", sesid);
rs->payload = nmem_strdup(c->nmem, buf);
http_send_response(c);
}
+static void cmd_settings(struct http_channel *c)
+{
+ struct http_response *rs = c->response;
+ struct http_request *rq = c->request;
+ struct http_session *s = locate_session(rq, rs);
+
+ if (!s)
+ return;
+
+ if (process_settings(s->psession, rq, rs) < 0)
+ return;
+ rs->payload = "<settings><status>OK</status></settings>";
+ http_send_response(c);
+}
+
+// Compares two hitsbytarget nodes by hitcount
+static int cmp_ht(const void *p1, const void *p2)
+{
+ const struct hitsbytarget *h1 = p1;
+ const struct hitsbytarget *h2 = p2;
+ return h2->hits - h1->hits;
+}
+
+// This implements functionality somewhat similar to 'bytarget', but in a termlist form
+static void targets_termlist(WRBUF wrbuf, struct session *se, int num,
+ NMEM nmem)
+{
+ struct hitsbytarget *ht;
+ int count, i;
+
+ ht = hitsbytarget(se, &count, nmem);
+ qsort(ht, count, sizeof(struct hitsbytarget), cmp_ht);
+ for (i = 0; i < count && i < num && ht[i].hits > 0; i++)
+ {
+
+ // do only print terms which have display names
+
+ wrbuf_puts(wrbuf, "<term>\n");
+
+ wrbuf_puts(wrbuf, "<id>");
+ wrbuf_xmlputs(wrbuf, ht[i].id);
+ wrbuf_puts(wrbuf, "</id>\n");
+
+ wrbuf_puts(wrbuf, "<name>");
+ if (!ht[i].name || !ht[i].name[0])
+ wrbuf_xmlputs(wrbuf, "NO TARGET NAME");
+ else
+ wrbuf_xmlputs(wrbuf, ht[i].name);
+ wrbuf_puts(wrbuf, "</name>\n");
+
+ wrbuf_printf(wrbuf, "<frequency>%d</frequency>\n", ht[i].hits);
+
+ wrbuf_puts(wrbuf, "<state>");
+ wrbuf_xmlputs(wrbuf, ht[i].state);
+ wrbuf_puts(wrbuf, "</state>\n");
+
+ wrbuf_printf(wrbuf, "<diagnostic>%d</diagnostic>\n",
+ ht[i].diagnostic);
+ wrbuf_puts(wrbuf, "</term>\n");
+ }
+}
+
static void cmd_termlist(struct http_channel *c)
{
struct http_response *rs = c->response;
struct termlist_score **p;
int len;
int i;
+ const char *name = http_argbyname(rq, "name");
+ const char *nums = http_argbyname(rq, "num");
+ int num = 15;
+ int status;
if (!s)
return;
+
+ status = session_active_clients(s->psession);
+
+ if (!name)
+ name = "subject";
+ if (strlen(name) > 255)
+ return;
+ if (nums)
+ num = atoi(nums);
+
wrbuf_rewind(c->wrbuf);
- wrbuf_puts(c->wrbuf, "<termlist>");
- p = termlist(s->psession, &len);
- if (p)
- for (i = 0; i < len; i++)
+ wrbuf_puts(c->wrbuf, "<termlist>\n");
+ wrbuf_printf(c->wrbuf, "<activeclients>%d</activeclients>\n", status);
+ while (*name)
+ {
+ char tname[256];
+ const char *tp;
+
+ if (!(tp = strchr(name, ',')))
+ 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);
+ else
{
- wrbuf_puts(c->wrbuf, "\n<term>");
- wrbuf_printf(c->wrbuf, "<name>%s</name>", p[i]->term);
- wrbuf_printf(c->wrbuf, "<frequency>%d</frequency>", p[i]->frequency);
- wrbuf_puts(c->wrbuf, "</term>");
+ p = termlist(s->psession, 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])
+ continue;
+
+ wrbuf_puts(c->wrbuf, "<term>");
+ wrbuf_puts(c->wrbuf, "<name>");
+ wrbuf_xmlputs(c->wrbuf, p[i]->term);
+ wrbuf_puts(c->wrbuf, "</name>");
+
+ wrbuf_printf(c->wrbuf,
+ "<frequency>%d</frequency>",
+ p[i]->frequency);
+ wrbuf_puts(c->wrbuf, "</term>\n");
+ }
}
- wrbuf_puts(c->wrbuf, "</termlist>");
- rs->payload = nmem_strdup(rq->channel->nmem, wrbuf_buf(c->wrbuf));
+ wrbuf_puts(c->wrbuf, "</list>\n");
+ name = tp;
+ if (*name == ',')
+ name++;
+ }
+ wrbuf_puts(c->wrbuf, "</termlist>\n");
+ rs->payload = nmem_strdup(rq->channel->nmem, wrbuf_cstr(c->wrbuf));
http_send_response(c);
}
if (!s)
return;
- if (!(ht = hitsbytarget(s->psession, &count)))
- {
- error(rs, "500", "Failed to retrieve hitcounts", 0);
- return;
- }
+ ht = hitsbytarget(s->psession, &count, c->nmem);
wrbuf_rewind(c->wrbuf);
wrbuf_puts(c->wrbuf, "<bytarget><status>OK</status>");
for (i = 0; i < count; i++)
{
wrbuf_puts(c->wrbuf, "\n<target>");
- wrbuf_printf(c->wrbuf, "<id>%s</id>\n", ht[i].id);
+
+ wrbuf_puts(c->wrbuf, "<id>");
+ wrbuf_xmlputs(c->wrbuf, ht[i].id);
+ wrbuf_puts(c->wrbuf, "</id>\n");
+
+ if (ht[i].name && ht[i].name[0])
+ {
+ wrbuf_puts(c->wrbuf, "<name>");
+ wrbuf_xmlputs(c->wrbuf, ht[i].name);
+ wrbuf_puts(c->wrbuf, "</name>\n");
+ }
+
wrbuf_printf(c->wrbuf, "<hits>%d</hits>\n", ht[i].hits);
wrbuf_printf(c->wrbuf, "<diagnostic>%d</diagnostic>\n", ht[i].diagnostic);
wrbuf_printf(c->wrbuf, "<records>%d</records>\n", ht[i].records);
- wrbuf_printf(c->wrbuf, "<state>%s</state>\n", ht[i].state);
+
+ wrbuf_puts(c->wrbuf, "<state>");
+ wrbuf_xmlputs(c->wrbuf, ht[i].state);
+ wrbuf_puts(c->wrbuf, "</state>\n");
+
wrbuf_puts(c->wrbuf, "</target>");
}
wrbuf_puts(c->wrbuf, "</bytarget>");
- rs->payload = nmem_strdup(c->nmem, wrbuf_buf(c->wrbuf));
+ rs->payload = nmem_strdup(c->nmem, wrbuf_cstr(c->wrbuf));
http_send_response(c);
}
-static void show_records(struct http_channel *c)
+static void write_metadata(WRBUF w, struct conf_service *service,
+ struct record_metadata **ml, int full)
+{
+ int imeta;
+
+ for (imeta = 0; imeta < service->num_metadata; imeta++)
+ {
+ struct conf_metadata *cmd = &service->metadata[imeta];
+ struct record_metadata *md;
+ if (!cmd->brief && !full)
+ continue;
+ for (md = ml[imeta]; md; md = md->next)
+ {
+ wrbuf_printf(w, "\n<md-%s>", cmd->name);
+
+ switch (cmd->type)
+ {
+ case Metadata_type_generic:
+ wrbuf_xmlputs(w, md->data.text.disp);
+ break;
+ case Metadata_type_year:
+ wrbuf_printf(w, "%d", md->data.number.min);
+ if (md->data.number.min != md->data.number.max)
+ wrbuf_printf(w, "-%d", md->data.number.max);
+ break;
+ default:
+ wrbuf_puts(w, "[can't represent]");
+ }
+ wrbuf_printf(w, "</md-%s>", cmd->name);
+ }
+ }
+}
+
+static void write_subrecord(struct record *r, WRBUF w,
+ struct conf_service *service, int show_details)
+{
+ const char *name = session_setting_oneval(
+ client_get_database(r->client), PZ_NAME);
+
+ wrbuf_puts(w, "<location id=\"");
+ wrbuf_xmlputs(w, client_get_database(r->client)->database->url);
+ wrbuf_puts(w, "\" ");
+
+ wrbuf_puts(w, "name=\"");
+ wrbuf_xmlputs(w, *name ? name : "Unknown");
+ wrbuf_puts(w, "\">");
+
+ write_metadata(w, service, r->metadata, show_details);
+ wrbuf_puts(w, "</location>\n");
+}
+
+static void show_raw_record_error(void *data, const char *addinfo)
+{
+ http_channel_observer_t obs = data;
+ struct http_channel *c = http_channel_observer_chan(obs);
+ struct http_response *rs = c->response;
+
+ http_remove_observer(obs);
+
+ error(rs, PAZPAR2_RECORD_FAIL, addinfo);
+}
+
+static void show_raw_record_ok(void *data, const char *buf, size_t sz)
+{
+ http_channel_observer_t obs = data;
+ struct http_channel *c = http_channel_observer_chan(obs);
+ struct http_response *rs = c->response;
+
+ http_remove_observer(obs);
+
+ wrbuf_write(c->wrbuf, buf, sz);
+ rs->payload = nmem_strdup(c->nmem, wrbuf_cstr(c->wrbuf));
+ http_send_response(c);
+}
+
+
+static void show_raw_record_ok_binary(void *data, const char *buf, size_t sz)
+{
+ http_channel_observer_t obs = data;
+ struct http_channel *c = http_channel_observer_chan(obs);
+ struct http_response *rs = c->response;
+
+ http_remove_observer(obs);
+
+ wrbuf_write(c->wrbuf, buf, sz);
+ rs->payload = nmem_strdup(c->nmem, wrbuf_cstr(c->wrbuf));
+
+ rs->content_type = "application/octet-stream";
+ http_send_response(c);
+}
+
+
+void show_raw_reset(void *data, struct http_channel *c, void *data2)
+{
+ //struct client *client = data;
+ //client_show_raw_remove(client, data2);
+}
+
+static void cmd_record_ready(void *data);
+
+static void cmd_record(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 record_cluster *rec, *prev_r, *next_r;
+ struct record *r;
+ struct conf_service *service;
+ const char *idstr = http_argbyname(rq, "id");
+ const char *offsetstr = http_argbyname(rq, "offset");
+ const char *binarystr = http_argbyname(rq, "binary");
+
+ if (!s)
+ return;
+ service = s->psession->service;
+ if (!idstr)
+ {
+ error(rs, PAZPAR2_MISSING_PARAMETER, "id");
+ return;
+ }
+ wrbuf_rewind(c->wrbuf);
+ if (!(rec = show_single(s->psession, idstr, &prev_r, &next_r)))
+ {
+ if (session_active_clients(s->psession) == 0)
+ {
+ error(rs, PAZPAR2_RECORD_MISSING, idstr);
+ }
+ else if (session_set_watch(s->psession, SESSION_WATCH_RECORD,
+ cmd_record_ready, c, c) != 0)
+ {
+ error(rs, PAZPAR2_RECORD_MISSING, idstr);
+ }
+ return;
+ }
+ if (offsetstr)
+ {
+ int offset = atoi(offsetstr);
+ const char *syntax = http_argbyname(rq, "syntax");
+ const char *esn = http_argbyname(rq, "esn");
+ int i;
+ struct record*r = rec->records;
+ int binary = 0;
+
+ if (binarystr && *binarystr != '0')
+ binary = 1;
+
+ for (i = 0; i < offset && r; r = r->next, i++)
+ ;
+ if (!r)
+ {
+ error(rs, PAZPAR2_RECORD_FAIL, "no record at offset given");
+ return;
+ }
+ else
+ {
+ http_channel_observer_t obs =
+ http_add_observer(c, r->client, show_raw_reset);
+ int ret = client_show_raw_begin(r->client, r->position,
+ syntax, esn,
+ obs /* data */,
+ show_raw_record_error,
+ (binary ?
+ show_raw_record_ok_binary :
+ show_raw_record_ok),
+ (binary ? 1 : 0));
+ if (ret == -1)
+ {
+ http_remove_observer(obs);
+ error(rs, PAZPAR2_NO_SESSION, 0);
+ }
+ }
+ }
+ else
+ {
+ wrbuf_puts(c->wrbuf, "<record>\n");
+ wrbuf_puts(c->wrbuf, "<recid>");
+ wrbuf_xmlputs(c->wrbuf, rec->recid);
+ wrbuf_puts(c->wrbuf, "</recid>\n");
+ if (prev_r)
+ {
+ wrbuf_puts(c->wrbuf, "<prevrecid>");
+ wrbuf_xmlputs(c->wrbuf, prev_r->recid);
+ wrbuf_puts(c->wrbuf, "</prevrecid>\n");
+ }
+ if (next_r)
+ {
+ wrbuf_puts(c->wrbuf, "<nextrecid>");
+ wrbuf_xmlputs(c->wrbuf, next_r->recid);
+ wrbuf_puts(c->wrbuf, "</nextrecid>\n");
+ }
+ wrbuf_printf(c->wrbuf, "<activeclients>%d</activeclients>\n",
+ session_active_clients(s->psession));
+ write_metadata(c->wrbuf, service, rec->metadata, 1);
+ for (r = rec->records; r; r = r->next)
+ write_subrecord(r, c->wrbuf, service, 1);
+ wrbuf_puts(c->wrbuf, "</record>\n");
+ rs->payload = nmem_strdup(c->nmem, wrbuf_cstr(c->wrbuf));
+ http_send_response(c);
+ }
+}
+
+static void cmd_record_ready(void *data)
+{
+ struct http_channel *c = (struct http_channel *) data;
+
+ cmd_record(c);
+}
+
+static void show_records(struct http_channel *c, int active)
{
struct http_request *rq = c->request;
struct http_response *rs = c->response;
struct http_session *s = locate_session(rq, rs);
- struct record **rl;
- char *start = http_argbyname(rq, "start");
- char *num = http_argbyname(rq, "num");
+ struct record_cluster **rl;
+ struct reclist_sortparms *sp;
+ const char *start = http_argbyname(rq, "start");
+ const char *num = http_argbyname(rq, "num");
+ const char *sort = http_argbyname(rq, "sort");
int startn = 0;
int numn = 20;
int total;
if (!s)
return;
+ // We haven't counted clients yet if we're called on a block release
+ if (active < 0)
+ active = session_active_clients(s->psession);
+
if (start)
startn = atoi(start);
if (num)
numn = atoi(num);
+ if (!sort)
+ sort = "relevance";
+ if (!(sp = reclist_parse_sortparms(c->nmem, sort, s->psession->service)))
+ {
+ error(rs, PAZPAR2_MALFORMED_PARAMETER_VALUE, "sort");
+ return;
+ }
- rl = show(s->psession, startn, &numn, &total, &total_hits);
+ rl = show(s->psession, sp, startn, &numn, &total, &total_hits, c->nmem);
wrbuf_rewind(c->wrbuf);
wrbuf_puts(c->wrbuf, "<show>\n<status>OK</status>\n");
+ wrbuf_printf(c->wrbuf, "<activeclients>%d</activeclients>\n", active);
wrbuf_printf(c->wrbuf, "<merged>%d</merged>\n", total);
wrbuf_printf(c->wrbuf, "<total>%d</total>\n", total_hits);
wrbuf_printf(c->wrbuf, "<start>%d</start>\n", startn);
{
int ccount;
struct record *p;
+ struct record_cluster *rec = rl[i];
+ struct conf_service *service = s->psession->service;
wrbuf_puts(c->wrbuf, "<hit>\n");
- wrbuf_printf(c->wrbuf, "<title>%s</title>\n", rl[i]->title);
- for (ccount = 1, p = rl[i]->next_cluster; p; p = p->next_cluster, ccount++)
- ;
+ write_metadata(c->wrbuf, service, rec->metadata, 0);
+ for (ccount = 0, p = rl[i]->records; p; p = p->next, ccount++)
+ write_subrecord(p, c->wrbuf, service, 0); // subrecs w/o details
if (ccount > 1)
wrbuf_printf(c->wrbuf, "<count>%d</count>\n", ccount);
+ wrbuf_puts(c->wrbuf, "<recid>");
+ wrbuf_xmlputs(c->wrbuf, rec->recid);
+ wrbuf_puts(c->wrbuf, "</recid>\n");
wrbuf_puts(c->wrbuf, "</hit>\n");
}
wrbuf_puts(c->wrbuf, "</show>\n");
- rs->payload = nmem_strdup(c->nmem, wrbuf_buf(c->wrbuf));
+ rs->payload = nmem_strdup(c->nmem, wrbuf_cstr(c->wrbuf));
http_send_response(c);
}
{
struct http_channel *c = (struct http_channel *) data;
- show_records(c);
+ show_records(c, -1);
}
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);
- char *block = http_argbyname(rq, "block");
+ const char *block = http_argbyname(rq, "block");
+ int status;
if (!s)
return;
+ status = session_active_clients(s->psession);
+
if (block)
{
- if (!s->psession->reclist || !s->psession->reclist->num_records)
+ if (status && (!s->psession->reclist || !s->psession->reclist->num_records))
{
- session_set_watch(s->psession, SESSION_WATCH_RECORDS, show_records_ready, c);
- yaz_log(YLOG_DEBUG, "Blocking on cmd_show");
+ // if there is already a watch/block. we do not block this one
+ if (session_set_watch(s->psession, SESSION_WATCH_SHOW,
+ show_records_ready, c, c) != 0)
+ {
+ yaz_log(YLOG_DEBUG, "Blocking on cmd_show");
+ }
return;
}
}
- show_records(c);
+ show_records(c, status);
}
static void cmd_ping(struct http_channel *c)
http_send_response(c);
}
+static int utf_8_valid(const char *str)
+{
+ yaz_iconv_t cd = yaz_iconv_open("utf-8", "utf-8");
+ if (cd)
+ {
+ /* check that query is UTF-8 encoded */
+ char *inbuf = (char *) str; /* we know iconv does not alter this */
+ size_t inbytesleft = strlen(inbuf);
+
+ size_t outbytesleft = strlen(inbuf) + 10;
+ char *out = xmalloc(outbytesleft);
+ char *outbuf = out;
+ size_t r = yaz_iconv(cd, &inbuf, &inbytesleft, &outbuf, &outbytesleft);
+
+ /* if OK, try flushing the rest */
+ if (r != (size_t) (-1))
+ r = yaz_iconv(cd, 0, 0, &outbuf, &outbytesleft);
+ yaz_iconv_close(cd);
+ xfree(out);
+ if (r == (size_t) (-1))
+ return 0;
+ }
+ return 1;
+}
+
static void cmd_search(struct http_channel *c)
{
struct http_request *rq = c->request;
struct http_response *rs = c->response;
struct http_session *s = locate_session(rq, rs);
- char *query = http_argbyname(rq, "query");
- char *res;
+ const char *query = http_argbyname(rq, "query");
+ const char *filter = http_argbyname(rq, "filter");
+ enum pazpar2_error_code code;
+ const char *addinfo = 0;
if (!s)
return;
if (!query)
{
- error(rs, "417", "Must supply query", 0);
+ error(rs, PAZPAR2_MISSING_PARAMETER, "query");
+ return;
+ }
+ if (!utf_8_valid(query))
+ {
+ error(rs, PAZPAR2_MALFORMED_PARAMETER_ENCODING, "query");
return;
}
- res = search(s->psession, query);
- if (res)
+ code = search(s->psession, query, filter, &addinfo);
+ if (code)
{
- error(rs, "417", res, res);
+ error(rs, code, addinfo);
return;
}
rs->payload = "<search><status>OK</status></search>";
struct http_response *rs = c->response;
struct http_session *s = locate_session(rq, rs);
struct statistics stat;
+ int clients;
+
+ float progress = 0;
if (!s)
return;
+ clients = session_active_clients(s->psession);
statistics(s->psession, &stat);
+ if (stat.num_clients > 0) {
+ progress = (stat.num_clients - clients) / (float)stat.num_clients;
+ }
+
wrbuf_rewind(c->wrbuf);
wrbuf_puts(c->wrbuf, "<stat>");
+ wrbuf_printf(c->wrbuf, "<activeclients>%d</activeclients>\n", clients);
wrbuf_printf(c->wrbuf, "<hits>%d</hits>\n", stat.num_hits);
wrbuf_printf(c->wrbuf, "<records>%d</records>\n", stat.num_records);
wrbuf_printf(c->wrbuf, "<clients>%d</clients>\n", stat.num_clients);
wrbuf_printf(c->wrbuf, "<unconnected>%d</unconnected>\n", stat.num_no_connection);
wrbuf_printf(c->wrbuf, "<connecting>%d</connecting>\n", stat.num_connecting);
- wrbuf_printf(c->wrbuf, "<initializing>%d</initializing>\n", stat.num_initializing);
- wrbuf_printf(c->wrbuf, "<searching>%d</searching>\n", stat.num_searching);
- wrbuf_printf(c->wrbuf, "<presenting>%d</presenting>\n", stat.num_presenting);
+ wrbuf_printf(c->wrbuf, "<working>%d</working>\n", stat.num_working);
wrbuf_printf(c->wrbuf, "<idle>%d</idle>\n", stat.num_idle);
wrbuf_printf(c->wrbuf, "<failed>%d</failed>\n", stat.num_failed);
wrbuf_printf(c->wrbuf, "<error>%d</error>\n", stat.num_error);
+ wrbuf_printf(c->wrbuf, "<progress>%.2f</progress>\n", progress);
wrbuf_puts(c->wrbuf, "</stat>");
- rs->payload = nmem_strdup(c->nmem, wrbuf_buf(c->wrbuf));
+ rs->payload = nmem_strdup(c->nmem, wrbuf_cstr(c->wrbuf));
http_send_response(c);
}
+static void cmd_info(struct http_channel *c)
+{
+ char yaz_version_str[20];
+ struct http_response *rs = c->response;
+
+ wrbuf_rewind(c->wrbuf);
+ wrbuf_puts(c->wrbuf, "<info>\n");
+ wrbuf_puts(c->wrbuf, " <version>\n");
+ wrbuf_puts(c->wrbuf, "<pazpar2");
+#ifdef PAZPAR2_VERSION_SHA1
+ wrbuf_printf(c->wrbuf, " sha1=\"%s\"", PAZPAR2_VERSION_SHA1);
+#endif
+ wrbuf_puts(c->wrbuf, ">");
+ wrbuf_xmlputs(c->wrbuf, VERSION);
+ wrbuf_puts(c->wrbuf, "</pazpar2>");
+
+
+ yaz_version(yaz_version_str, 0);
+ wrbuf_puts(c->wrbuf, " <yaz compiled=\"");
+ wrbuf_xmlputs(c->wrbuf, YAZ_VERSION);
+ wrbuf_puts(c->wrbuf, "\">");
+ wrbuf_xmlputs(c->wrbuf, yaz_version_str);
+ wrbuf_puts(c->wrbuf, "</yaz>\n");
+
+ wrbuf_puts(c->wrbuf, " </version>\n");
+
+ wrbuf_puts(c->wrbuf, "</info>");
+ rs->payload = nmem_strdup(c->nmem, wrbuf_cstr(c->wrbuf));
+ http_send_response(c);
+}
struct {
char *name;
void (*fun)(struct http_channel *c);
} commands[] = {
{ "init", cmd_init },
+ { "settings", cmd_settings },
{ "stat", cmd_stat },
{ "bytarget", cmd_bytarget },
{ "show", cmd_show },
{ "termlist", cmd_termlist },
{ "exit", cmd_exit },
{ "ping", cmd_ping },
+ { "record", cmd_record },
+ { "info", cmd_info },
{0,0}
};
void http_command(struct http_channel *c)
{
- char *command = http_argbyname(c->request, "command");
+ const char *command = http_argbyname(c->request, "command");
struct http_response *rs = http_create_response(c);
int i;
c->response = rs;
+
+ http_addheader(rs, "Expires", "Thu, 19 Nov 1981 08:52:00 GMT");
+ http_addheader(rs, "Cache-Control", "no-store, no-cache, must-revalidate, post-check=0, pre-check=0");
+
if (!command)
{
- error(rs, "417", "Must supply command", 0);
+ error(rs, PAZPAR2_MISSING_PARAMETER, "command");
return;
}
for (i = 0; commands[i].name; i++)
break;
}
if (!commands[i].name)
- error(rs, "417", "Unknown command", 0);
+ error(rs, PAZPAR2_MALFORMED_PARAMETER_VALUE, "command");
return;
}
/*
* Local variables:
* c-basic-offset: 4
+ * c-file-style: "Stroustrup"
* indent-tabs-mode: nil
* End:
* vim: shiftwidth=4 tabstop=8 expandtab
*/
+