X-Git-Url: http://git.indexdata.com/?p=pazpar2-moved-to-github.git;a=blobdiff_plain;f=src%2Fhttp_command.c;h=dcb21a7765275614fc423304c2fe2f51bf5fa5fe;hp=dc6750dfe5d725a462a89495e184b9b7dad546cd;hb=37ae4386bd764d62ae43c68df1560be55ff813ca;hpb=17ef116432f19c9229f95d4708221adb20d64b69

diff --git a/src/http_command.c b/src/http_command.c
index dc6750d..dcb21a7 100644
--- a/src/http_command.c
+++ b/src/http_command.c
@@ -1,5 +1,5 @@
 /* This file is part of Pazpar2.
-   Copyright (C) 2006-2013 Index Data
+   Copyright (C) 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
@@ -48,19 +48,28 @@ void print_meminfo(WRBUF wrbuf)
 {
     struct mallinfo minfo;
     minfo = mallinfo();
-    wrbuf_printf(wrbuf, "  <memory>\n"
-                        "   <arena>%d</arena>\n"
-                        "   <uordblks>%d</uordblks>\n"
-                        "   <fordblks>%d</fordblks>\n"
-                        "   <ordblks>%d</ordblks>\n"
-                        "   <keepcost>%d</keepcost>\n"
-                        "   <hblks>%d</hblks>\n"
-                        "   <hblkhd>%d</hblkhd>\n"
-                        "   <virt>%d</virt>\n"
-                        "   <virtuse>%d</virtuse>\n"
-                        "  </memory>\n",
-                 minfo.arena, minfo.uordblks, minfo.fordblks,minfo.ordblks, minfo.keepcost, minfo.hblks, minfo.hblkhd, minfo.arena + minfo.hblkhd, minfo.uordblks + minfo.hblkhd);
-
+    wrbuf_printf(wrbuf, " <memory>\n"
+                 "  <arena>%d</arena><!--  Non-mmapped space allocated (bytes) -->\n"
+                 "  <ordblks>%d</ordblks><!--  Number of free chunks -->\n"
+                 "  <smblks>%d</smblks><!--  Number of free fastbin blocks -->\n"
+                 "  <hblks>%d</hblks><!--  Number of mmapped regions -->\n"
+                 "  <hblkhd>%d</hblkhd><!--  Space allocated in mmapped regions (bytes) -->\n"
+                 "  <usmblks>%d</usmblks><!--  Maximum total allocated space (bytes) -->\n"
+                 "  <fsmblks>%d</fsmblks><!--  Space in freed fastbin blocks (bytes) -->\n"
+                 "  <uordblks>%d</uordblks><!--  Total allocated space (bytes) -->\n"
+                 "  <fordblks>%d</fordblks><!--  Total free space (bytes) -->\n"
+                 "  <keepcost>%d</keepcost><!-- Top-most, releasable space (bytes) -->\n"
+                 " </memory>\n",
+                 minfo.arena,
+                 minfo.ordblks,
+                 minfo.smblks,
+                 minfo.hblks,
+                 minfo.hblkhd,
+                 minfo.usmblks,
+                 minfo.fsmblks,
+                 minfo.uordblks,
+                 minfo.fordblks,
+                 minfo.keepcost);
 }
 #else
 #define print_meminfo(x)
@@ -114,7 +123,8 @@ int http_session_use(int delta)
     g_http_sessions += delta;
     sessions = g_http_sessions;
     yaz_mutex_leave(g_http_session_mutex);
-    yaz_log(YLOG_DEBUG, "%s sessions=%d", delta == 0 ? "" : (delta > 0 ? "INC" : "DEC"), sessions);
+    yaz_log(YLOG_DEBUG, "%s http_sessions=%d", delta == 0 ? "" :
+            (delta > 0 ? "INC" : "DEC"), sessions);
     return sessions;
 
 }
@@ -125,7 +135,7 @@ http_sessions_t http_sessions_create(void)
     hs->session_list = 0;
     hs->mutex = 0;
     pazpar2_mutex_create(&hs->mutex, "http_sessions");
-    hs->log_level = yaz_log_module_level("HTTP");
+    hs->log_level = yaz_log_module_level("http");
     return hs;
 }
 
@@ -164,7 +174,7 @@ struct http_session *http_session_create(struct conf_service *service,
     char tmp_str[50];
 
     sprintf(tmp_str, "session#%u", sesid);
-    r->psession = new_session(nmem, service, sesid);
+    r->psession = session_create(nmem, service, sesid);
     r->session_id = sesid;
     r->timestamp = 0;
     r->nmem = nmem;
@@ -185,7 +195,7 @@ struct http_session *http_session_create(struct conf_service *service,
                 r->timeout_iochan, service->session_timeout);
     iochan_settimeout(r->timeout_iochan, service->session_timeout);
 
-    iochan_add(service->server->iochan_man, r->timeout_iochan);
+    iochan_add(service->server->iochan_man, r->timeout_iochan, -1);
     http_session_use(1);
     return r;
 }
@@ -262,9 +272,9 @@ static const char *get_msg(enum pazpar2_error_code code)
     return "No error";
 }
 
-static void error(struct http_response *rs,
-                  enum pazpar2_error_code code,
-                  const char *addinfo)
+static void error2(struct http_response *rs,
+                   enum pazpar2_error_code code,
+                   const char *addinfo, const char *addinfo2)
 {
     struct http_channel *c = rs->channel;
     WRBUF text = wrbuf_alloc();
@@ -274,10 +284,17 @@ static void error(struct http_response *rs,
     rs->msg = nmem_strdup(c->nmem, msg);
     strcpy(rs->code, http_status);
 
-    wrbuf_printf(text, HTTP_COMMAND_RESPONSE_PREFIX "<error code=\"%d\" msg=\"%s\">", (int) code,
-               msg);
+    wrbuf_printf(text, HTTP_COMMAND_RESPONSE_PREFIX
+                 "<error code=\"%d\" msg=\"%s\">", (int) code, msg);
     if (addinfo)
+    {
         wrbuf_xmlputs(text, addinfo);
+        if (addinfo2)
+        {
+            wrbuf_xmlputs(text, ": ");
+            wrbuf_xmlputs(text, addinfo2);
+        }
+    }
     wrbuf_puts(text, "</error>");
 
     yaz_log(YLOG_WARN, "HTTP %s %s%s%s", http_status,
@@ -287,16 +304,24 @@ static void error(struct http_response *rs,
     http_send_response(c);
 }
 
-static void response_open_no_status(struct http_channel *c, const char *command)
+static void error(struct http_response *rs,
+                  enum pazpar2_error_code code,
+                  const char *addinfo)
+{
+    error2(rs, code, addinfo, 0);
+}
+
+static void response_open_command(struct http_channel *c, const char *command)
 {
     wrbuf_rewind(c->wrbuf);
-    wrbuf_printf(c->wrbuf, "%s<%s>",
-                 HTTP_COMMAND_RESPONSE_PREFIX, command);
+    wrbuf_puts(c->wrbuf, HTTP_COMMAND_RESPONSE_PREFIX);
+    if (command)
+        wrbuf_printf(c->wrbuf, "<%s>", command);
 }
 
-static void response_open(struct http_channel *c, const char *command)
+static void response_open_ok(struct http_channel *c, const char *command)
 {
-    response_open_no_status(c, command);
+    response_open_command(c, command);
     wrbuf_puts(c->wrbuf, "<status>OK</status>");
 }
 
@@ -304,7 +329,8 @@ static void response_close(struct http_channel *c, const char *command)
 {
     struct http_response *rs = c->response;
 
-    wrbuf_printf(c->wrbuf, "</%s>", command);
+    if (command)
+        wrbuf_printf(c->wrbuf, "</%s>", command);
     rs->payload = nmem_strdup(c->nmem, wrbuf_cstr(c->wrbuf));
     http_send_response(c);
 }
@@ -384,6 +410,7 @@ static int process_settings(struct session *se, struct http_request *rq,
                             struct http_response *rs)
 {
     struct http_argument *a;
+    NMEM nmem = nmem_create();
 
     for (a = rq->arguments; a; a = a->next)
         if (strchr(a->name, '['))
@@ -394,17 +421,18 @@ static int process_settings(struct session *se, struct http_request *rq,
             char *setting;
 
             // Nmem_strsplit *rules*!!!
-            nmem_strsplit(se->session_nmem, "[]", a->name, &res, &num);
+            nmem_strsplit(nmem, "[]", a->name, &res, &num);
             if (num != 2)
             {
                 error(rs, PAZPAR2_MALFORMED_SETTING, a->name);
+                nmem_destroy(nmem);
                 return -1;
             }
             setting = res[0];
             dbname = res[1];
-            session_apply_setting(se, dbname, setting,
-                    nmem_strdup(se->session_nmem, a->value));
+            session_apply_setting(se, dbname, setting, a->value);
         }
+    nmem_destroy(nmem);
     return 0;
 }
 
@@ -412,7 +440,7 @@ static void cmd_exit(struct http_channel *c)
 {
     yaz_log(YLOG_WARN, "exit");
 
-    response_open(c, "exit");
+    response_open_ok(c, "exit");
     response_close(c, "exit");
     if (global_parameters.debug_mode)
         http_close_server(c->server);
@@ -469,7 +497,7 @@ static void cmd_init(struct http_channel *c)
     if (process_settings(s->psession, c->request, c->response) < 0)
         return;
 
-    response_open(c, "init");
+    response_open_ok(c, "init");
     wrbuf_printf(c->wrbuf, "<session>%d", sesid);
     if (c->server->server_id)
     {
@@ -479,8 +507,9 @@ static void cmd_init(struct http_channel *c)
     wrbuf_puts(c->wrbuf, "</session>"
                "<protocol>" PAZPAR2_PROTOCOL_VERSION "</protocol>");
 
-    wrbuf_printf(c->wrbuf, "<keepAlive>%d</keepAlive>\n", 1000 * ((s->psession->service->session_timeout >= 20) ?
-                                                                  (s->psession->service->session_timeout - 10) : 50));
+    wrbuf_printf(c->wrbuf, "<keepAlive>%d</keepAlive>\n",
+                 1000 * ((s->psession->service->session_timeout >= 20) ?
+                         (s->psession->service->session_timeout - 10) : 50));
     response_close(c, "init");
 }
 
@@ -489,9 +518,7 @@ static void apply_local_setting(void *client_data,
 {
     struct session *se =  (struct session *) client_data;
 
-    session_apply_setting(se, nmem_strdup(se->session_nmem, set->target),
-                          nmem_strdup(se->session_nmem, set->name),
-                          nmem_strdup(se->session_nmem, set->value));
+    session_apply_setting(se, set->target, set->name, set->value);
 }
 
 static void cmd_settings(struct http_channel *c)
@@ -513,7 +540,7 @@ static void cmd_settings(struct http_channel *c)
         if (!doc)
         {
             error(rs, PAZPAR2_MALFORMED_SETTING, 0);
-            release_session(c,s);
+            release_session(c, s);
             return;
         }
         root_n = xmlDocGetRootElement(doc);
@@ -522,7 +549,7 @@ static void cmd_settings(struct http_channel *c)
         if (ret)
         {
             error(rs, PAZPAR2_MALFORMED_SETTING, 0);
-            release_session(c,s);
+            release_session(c, s);
             return;
         }
     }
@@ -531,12 +558,13 @@ static void cmd_settings(struct http_channel *c)
         release_session(c, s);
         return;
     }
-    response_open(c, "settings");
+    response_open_ok(c, "settings");
     response_close(c, "settings");
     release_session(c, s);
 }
 
-static void termlist_response(struct http_channel *c, struct http_session *s, const char *cmd_status)
+static void termlist_response(struct http_channel *c, struct http_session *s,
+                              const char *cmd_status)
 {
     struct http_request *rq = c->request;
     const char *name    = http_argbyname(rq, "name");
@@ -550,7 +578,7 @@ static void termlist_response(struct http_channel *c, struct http_session *s, co
 
     status = session_active_clients(s->psession);
 
-    response_open_no_status(c, "termlist");
+    response_open_command(c, "termlist");
     /* new protocol add a status to response. Triggered by a status parameter */
     if (cmd_status != 0)
         wrbuf_printf(c->wrbuf, "<status>%s</status>\n", cmd_status);
@@ -575,7 +603,7 @@ static void termlist_result_ready(void *data)
         session_log(s->psession, c->http_sessions->log_level,
                     "termlist watch released");
         termlist_response(c, s, status);
-        release_session(c,s);
+        release_session(c, s);
     }
 }
 
@@ -642,80 +670,55 @@ size_t session_get_memory_status(struct session *session);
 static void session_status(struct http_channel *c, struct http_session *s)
 {
     size_t session_nmem;
-    wrbuf_printf(c->wrbuf, "<http_count>%u</http_count>\n", s->activity_counter);
-    wrbuf_printf(c->wrbuf, "<http_nmem>%zu</http_nmem>\n", nmem_total(s->nmem) );
+    wrbuf_printf(c->wrbuf, "<http_count>%u</http_count>\n",
+                 s->activity_counter);
+    wrbuf_printf(c->wrbuf, "<http_nmem>%zu</http_nmem>\n",
+                 nmem_total(s->nmem) );
     session_nmem = session_get_memory_status(s->psession);
     wrbuf_printf(c->wrbuf, "<session_nmem>%zu</session_nmem>\n", session_nmem);
 }
 
-static void cmd_session_status(struct http_channel *c)
+static void cmd_service(struct http_channel *c)
 {
     struct http_session *s = locate_session(c);
     if (!s)
         return;
 
-    response_open(c, "session-status");
-    session_status(c, s);
-    response_close(c, "session-status");
+    response_open_command(c, 0);
+    if (s->psession->service->xml_node)
+        wrbuf_puts(c->wrbuf, s->psession->service->xml_node);
+    response_close(c, 0);
     release_session(c, s);
 }
 
-int sessions_count(void);
-int clients_count(void);
-#ifdef HAVE_RESULTSETS_COUNT
-int resultsets_count(void);
-#else
-#define resultsets_count()      0
-#endif
-
-static void cmd_server_status(struct http_channel *c)
+static void cmd_session_status(struct http_channel *c)
 {
-    int sessions   = sessions_count();
-    int clients    = clients_count();
-    int resultsets = resultsets_count();
-
-    response_open(c, "server-status");
-    wrbuf_printf(c->wrbuf, "\n  <sessions>%u</sessions>\n", sessions);
-    wrbuf_printf(c->wrbuf, "  <clients>%u</clients>\n",   clients);
-    /* Only works if yaz has been compiled with enabling of this */
-    wrbuf_printf(c->wrbuf, "  <resultsets>%u</resultsets>\n",resultsets);
-    print_meminfo(c->wrbuf);
+    struct http_session *s = locate_session(c);
+    if (!s)
+        return;
 
-/* TODO add all sessions status                         */
-/*    http_sessions_t http_sessions = c->http_sessions; */
-/*    struct http_session *p;                           */
-/*
-    yaz_mutex_enter(http_sessions->mutex);
-    for (p = http_sessions->session_list; p; p = p->next)
-    {
-        p->activity_counter++;
-        wrbuf_puts(c->wrbuf, "<session-status>\n");
-        wrbuf_printf(c->wrbuf, "<id>%s</id>\n", p->session_id);
-        yaz_mutex_leave(http_sessions->mutex);
-        session_status(c, p);
-        wrbuf_puts(c->wrbuf, "</session-status>\n");
-        yaz_mutex_enter(http_sessions->mutex);
-        p->activity_counter--;
-    }
-    yaz_mutex_leave(http_sessions->mutex);
-*/
-    response_close(c, "server-status");
-    xmalloc_trav(0);
+    response_open_ok(c, "session-status");
+    session_status(c, s);
+    response_close(c, "session-status");
+    release_session(c, s);
 }
 
-static void bytarget_response(struct http_channel *c, struct http_session *s, const char *cmd_status) {
+static void bytarget_response(struct http_channel *c, struct http_session *s,
+                              const char *cmd_status)
+{
     int count, i;
-    struct hitsbytarget *ht;
     struct http_request *rq = c->request;
     const char *settings = http_argbyname(rq, "settings");
     int version = get_version(rq);
-    ht = get_hitsbytarget(s->psession, &count, c->nmem);
+    struct hitsbytarget *ht = get_hitsbytarget(s->psession, &count, c->nmem);
+
     if (!cmd_status)
         /* Old protocol, always ok */
-        response_open(c, "bytarget");
-    else {
+        response_open_ok(c, "bytarget");
+    else
+    {
         /* New protocol, OK or WARNING (...)*/
-        response_open_no_status(c, "bytarget");
+        response_open_command(c, "bytarget");
         wrbuf_printf(c->wrbuf, "<status>%s</status>", cmd_status);
     }
 
@@ -738,7 +741,8 @@ static void bytarget_response(struct http_channel *c, struct http_session *s, co
         }
 
         wrbuf_printf(c->wrbuf, "<hits>" ODR_INT_PRINTF "</hits>\n", ht[i].hits);
-        wrbuf_printf(c->wrbuf, "<diagnostic>%d</diagnostic>\n", ht[i].diagnostic);
+        wrbuf_printf(c->wrbuf, "<diagnostic>%d</diagnostic>\n",
+                     ht[i].diagnostic);
         if (ht[i].diagnostic)
         {
             wrbuf_puts(c->wrbuf, "<message>");
@@ -750,10 +754,13 @@ static void bytarget_response(struct http_channel *c, struct http_session *s, co
             wrbuf_puts(c->wrbuf, "</addinfo>\n");
         }
 
-        wrbuf_printf(c->wrbuf, "<records>%d</records>\n", ht[i].records - ht[i].filtered);
-        if (version >= 2) {
-            wrbuf_printf(c->wrbuf, "<filtered>%d</filtered>\n", ht[i].filtered);
-            wrbuf_printf(c->wrbuf, "<approximation>" ODR_INT_PRINTF "</approximation>\n", ht[i].approximation);
+        wrbuf_printf(c->wrbuf, "<records>%d</records>\n",
+                     ht[i].records - ht[i].filtered);
+        wrbuf_printf(c->wrbuf, "<filtered>%d</filtered>\n", ht[i].filtered);
+        if (version >= 2)
+        {
+            wrbuf_printf(c->wrbuf, "<approximation>" ODR_INT_PRINTF
+                         "</approximation>\n", ht[i].approximation);
         }
         wrbuf_puts(c->wrbuf, "<state>");
         wrbuf_xmlputs(c->wrbuf, ht[i].state);
@@ -764,11 +771,21 @@ static void bytarget_response(struct http_channel *c, struct http_session *s, co
             wrbuf_puts(c->wrbuf, ht[i].settings_xml);
             wrbuf_puts(c->wrbuf, "</settings>\n");
         }
-        if (ht[i].suggestions_xml && ht[i].suggestions_xml[0]) {
+        if (ht[i].suggestions_xml && ht[i].suggestions_xml[0])
+        {
             wrbuf_puts(c->wrbuf, "<suggestions>");
             wrbuf_puts(c->wrbuf, ht[i].suggestions_xml);
             wrbuf_puts(c->wrbuf, "</suggestions>");
         }
+        if (ht[i].query_data)
+        {
+            wrbuf_puts(c->wrbuf, "<query_type>");
+            wrbuf_xmlputs(c->wrbuf, ht[i].query_type);
+            wrbuf_puts(c->wrbuf, "</query_type>\n");
+            wrbuf_puts(c->wrbuf, "<query_data>");
+            wrbuf_xmlputs(c->wrbuf, ht[i].query_data);
+            wrbuf_puts(c->wrbuf, "</query_data>\n");
+        }
         wrbuf_puts(c->wrbuf, "</target>");
     }
     response_close(c, "bytarget");
@@ -829,10 +846,9 @@ static void cmd_bytarget(struct http_channel *c)
             }
             else if (report_status)
                 status_message = "WARNING (Already blocked on bytarget)";
-            else {
+            else
                 session_log(s->psession, YLOG_WARN, "Ignoring bytarget block."
                             " Return current result.");
-            }
         }
         else
         {
@@ -847,7 +863,8 @@ static void cmd_bytarget(struct http_channel *c)
 }
 
 static void write_metadata(WRBUF w, struct conf_service *service,
-                           struct record_metadata **ml, int full, int indent)
+                           struct record_metadata **ml, unsigned flags,
+                           int indent)
 {
     int imeta;
 
@@ -855,7 +872,7 @@ static void write_metadata(WRBUF w, struct conf_service *service,
     {
         struct conf_metadata *cmd = &service->metadata[imeta];
         struct record_metadata *md;
-        if (!cmd->brief && !full)
+        if (!cmd->brief && !(flags & 1))
             continue;
         for (md = ml[imeta]; md; md = md->next)
         {
@@ -875,13 +892,19 @@ static void write_metadata(WRBUF w, struct conf_service *service,
             switch (cmd->type)
             {
                 case Metadata_type_generic:
-                    wrbuf_xmlputs(w, md->data.text.disp);
+                    if (md->data.text.snippet && (flags & 2))
+                        wrbuf_puts(w, md->data.text.snippet);
+                    else
+                        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;
+                case Metadata_type_float:
+                    wrbuf_printf(w, "%f", md->data.fnumber);
+                    break;
                 default:
                     wrbuf_puts(w, "[can't represent]");
                     break;
@@ -892,7 +915,8 @@ static void write_metadata(WRBUF w, struct conf_service *service,
 }
 
 static void write_subrecord(struct record *r, WRBUF w,
-        struct conf_service *service, int show_details)
+                            struct conf_service *service, unsigned flags,
+                            int indent)
 {
     const char *name = session_setting_oneval(
         client_get_database(r->client), PZ_NAME);
@@ -909,7 +933,7 @@ static void write_subrecord(struct record *r, WRBUF w,
     wrbuf_printf(w,  "%u", r->checksum);
     wrbuf_puts(w, "\">\n");
 
-    write_metadata(w, service, r->metadata, show_details, 2);
+    write_metadata(w, service, r->metadata, flags, indent);
     wrbuf_puts(w, " </location>\n");
 }
 
@@ -972,6 +996,8 @@ static void show_record(struct http_channel *c, struct http_session *s)
     const char *offsetstr = http_argbyname(rq, "offset");
     const char *binarystr = http_argbyname(rq, "binary");
     const char *checksumstr = http_argbyname(rq, "checksum");
+    const char *snippets = http_argbyname(rq, "snippets");
+    unsigned flags = (snippets && *snippets == '1') ? 3 : 1;
 
     if (!s)
         return;
@@ -1047,7 +1073,7 @@ static void show_record(struct http_channel *c, struct http_session *s)
     else
     {
         struct record *r;
-        response_open_no_status(c, "record");
+        response_open_command(c, "record");
         wrbuf_puts(c->wrbuf, "\n <recid>");
         wrbuf_xmlputs(c->wrbuf, rec->recid);
         wrbuf_puts(c->wrbuf, "</recid>\n");
@@ -1065,9 +1091,9 @@ static void show_record(struct http_channel *c, struct http_session *s)
         }
         wrbuf_printf(c->wrbuf, " <activeclients>%d</activeclients>\n",
                      session_active_clients(s->psession));
-        write_metadata(c->wrbuf, service, rec->metadata, 1, 1);
+        write_metadata(c->wrbuf, service, rec->metadata, flags, 1);
         for (r = rec->records; r; r = r->next)
-            write_subrecord(r, c->wrbuf, service, 2);
+            write_subrecord(r, c->wrbuf, service, flags, 2);
         response_close(c, "record");
     }
     show_single_stop(s->psession, rec);
@@ -1082,21 +1108,23 @@ static void cmd_record_ready(void *data)
         session_log(s->psession, c->http_sessions->log_level,
                     "record watch released");
         show_record(c, s);
-        release_session(c,s);
+        release_session(c, s);
     }
 }
 
 static void cmd_record(struct http_channel *c)
 {
     struct http_session *s = locate_session(c);
-    if (s) {
+    if (s)
+    {
         show_record(c, s);
-        release_session(c,s);
+        release_session(c, s);
     }
 }
 
 
-static void show_records(struct http_channel *c, struct http_session *s, int active)
+static void show_records(struct http_channel *c, struct http_session *s,
+                         int active)
 {
     struct http_request *rq = c->request;
     struct http_response *rs = c->response;
@@ -1106,6 +1134,8 @@ static void show_records(struct http_channel *c, struct http_session *s, int act
     const char *num = http_argbyname(rq, "num");
     const char *sort = http_argbyname(rq, "sort");
     int version = get_version(rq);
+    const char *snippets = http_argbyname(rq, "snippets");
+    unsigned flags = (snippets && *snippets == '1') ? 2 : 0;
 
     int startn = 0;
     int numn = 20;
@@ -1127,9 +1157,8 @@ static void show_records(struct http_channel *c, struct http_session *s, int act
         numn = atoi(num);
 
     service = s->psession->service;
-    if (!sort) {
+    if (!sort)
         sort = service->default_sort;
-    }
     if (!(sp = reclist_parse_sortparms(c->nmem, sort, service)))
     {
         error(rs, PAZPAR2_MALFORMED_PARAMETER_VALUE, "sort");
@@ -1142,13 +1171,14 @@ static void show_records(struct http_channel *c, struct http_session *s, int act
     if (!rl)
         return;
 
-    response_open(c, "show");
+    response_open_ok(c, "show");
     wrbuf_printf(c->wrbuf, "\n<activeclients>%d</activeclients>\n", active);
     wrbuf_printf(c->wrbuf, "<merged>%d</merged>\n", total);
     wrbuf_printf(c->wrbuf, "<total>" ODR_INT_PRINTF "</total>\n", total_hits);
-    if (version >= 2) {
-        wrbuf_printf(c->wrbuf, "<approximation>" ODR_INT_PRINTF "</approximation>\n", approx_hits);
-    }
+    if (version >= 2)
+        wrbuf_printf(c->wrbuf, "<approximation>" ODR_INT_PRINTF
+                     "</approximation>\n", approx_hits);
+
     wrbuf_printf(c->wrbuf, "<start>%d</start>\n", startn);
     wrbuf_printf(c->wrbuf, "<num>%d</num>\n", numn);
 
@@ -1160,9 +1190,9 @@ static void show_records(struct http_channel *c, struct http_session *s, int act
         struct conf_service *service = s->psession->service;
 
         wrbuf_puts(c->wrbuf, "<hit>\n");
-        write_metadata(c->wrbuf, service, rec->metadata, 0, 1);
+        write_metadata(c->wrbuf, service, rec->metadata, flags, 1);
         for (ccount = 0, p = rl[i]->records; p;  p = p->next, ccount++)
-            write_subrecord(p, c->wrbuf, service, 0); // subrecs w/o details
+            write_subrecord(p, c->wrbuf, service, flags, 2);
         wrbuf_printf(c->wrbuf, " <count>%d</count>\n", ccount);
 	if (strstr(sort, "relevance"))
         {
@@ -1200,7 +1230,7 @@ static void show_records_ready(void *data)
     else {
         /* some error message  */
     }
-    release_session(c,s);
+    release_session(c, s);
 }
 
 static void cmd_show(struct http_channel *c)
@@ -1214,21 +1244,17 @@ static void cmd_show(struct http_channel *c)
     const char *mergekey = http_argbyname(rq, "mergekey");
     const char *rank = http_argbyname(rq, "rank");
     struct conf_service *service = 0;
-
     struct reclist_sortparms *sp;
     int status;
     int report_error = 0;
-    if (block_error && !strcmp("1", block_error)) {
+
+    if (block_error && !strcmp("1", block_error))
         report_error = 1;
-    }
     if (!s)
         return;
-
     service = s->psession->service;
-    if (!sort) {
+    if (!sort)
         sort = service->default_sort;
-    }
-
     if (!(sp = reclist_parse_sortparms(c->nmem, sort, service)))
     {
         error(c->response, PAZPAR2_MALFORMED_PARAMETER_VALUE, "sort");
@@ -1239,9 +1265,11 @@ static void cmd_show(struct http_channel *c)
 
     status = session_active_clients(s->psession);
 
-    if (block)
+    if (block && reclist_get_num_records(s->psession->reclist) == 0)
     {
-        if (!strcmp(block, "preferred") && !session_is_preferred_clients_ready(s->psession) && reclist_get_num_records(s->psession->reclist) == 0)
+        if (!strcmp(block, "preferred")
+            && !session_is_preferred_clients_ready(s->psession)
+            && reclist_get_num_records(s->psession->reclist) == 0)
         {
             // if there is already a watch/block. we do not block this one
             if (session_set_watch(s->psession, SESSION_WATCH_SHOW_PREF,
@@ -1307,7 +1335,7 @@ static void cmd_ping(struct http_channel *c)
     struct http_session *s = locate_session(c);
     if (!s)
         return;
-    response_open(c, "ping");
+    response_open_ok(c, "ping");
     response_close(c, "ping");
     release_session(c, s);
 }
@@ -1327,6 +1355,7 @@ static void cmd_search(struct http_channel *c)
     const char *rank = http_argbyname(rq, "rank");
     enum pazpar2_error_code code;
     const char *addinfo = 0;
+    const char *addinfo2 = 0;
     struct reclist_sortparms *sp;
     struct conf_service *service = 0;
 
@@ -1346,9 +1375,9 @@ static void cmd_search(struct http_channel *c)
         return;
     }
     service = s->psession->service;
-    if (!sort) {
+    if (!sort)
         sort = service->default_sort;
-    }
+
     if (!(sp = reclist_parse_sortparms(c->nmem, sort, s->psession->service)))
     {
         error(c->response, PAZPAR2_MALFORMED_PARAMETER_VALUE, "sort");
@@ -1357,14 +1386,14 @@ static void cmd_search(struct http_channel *c)
     }
 
     code = session_search(s->psession, query, startrecs, maxrecs, filter, limit,
-                          &addinfo, sp, mergekey, rank);
+                          &addinfo, &addinfo2, sp, mergekey, rank);
     if (code)
     {
-        error(rs, code, addinfo);
+        error2(rs, code, addinfo, addinfo2);
         release_session(c, s);
         return;
     }
-    response_open(c, "search");
+    response_open_ok(c, "search");
     response_close(c, "search");
     release_session(c, s);
 }
@@ -1389,7 +1418,7 @@ static void cmd_stat(struct http_channel *c)
     	progress = (stat.num_clients  - clients) / (float)stat.num_clients;
     }
 
-    response_open_no_status(c, "stat");
+    response_open_command(c, "stat");
     wrbuf_printf(c->wrbuf, "\n <activeclients>%d</activeclients>\n", clients);
     wrbuf_printf(c->wrbuf, " <hits>" ODR_INT_PRINTF "</hits>\n", stat.num_hits);
     wrbuf_printf(c->wrbuf, " <records>%d</records>\n", stat.num_records);
@@ -1405,12 +1434,23 @@ static void cmd_stat(struct http_channel *c)
     release_session(c, s);
 }
 
+static void cmd_stop(struct http_channel *c)
+{
+    struct http_session *s = locate_session(c);
+    if (!s)
+        return;
+    response_open_ok(c, "stop");
+    session_stop(s->psession);
+    response_close(c, "stop");
+    release_session(c, s);
+}
+
 static void cmd_info(struct http_channel *c)
 {
     char yaz_version_str[20];
     char yaz_sha1_str[42];
 
-    response_open_no_status(c, "info");
+    response_open_command(c, "info");
     wrbuf_puts(c->wrbuf, "\n <version>\n");
     wrbuf_puts(c->wrbuf, "  <pazpar2");
 #ifdef PAZPAR2_VERSION_SHA1
@@ -1441,6 +1481,9 @@ static void cmd_info(struct http_channel *c)
         }
     }
 #endif
+    wrbuf_printf(c->wrbuf, " <sessions>%d</sessions>\n", sessions_get_count());
+    wrbuf_printf(c->wrbuf, " <clients>%d</clients>\n",   clients_get_count());
+    print_meminfo(c->wrbuf);
     info_services(c->server, c->wrbuf);
 
     response_close(c, "info");
@@ -1459,10 +1502,11 @@ struct {
     { "termlist", cmd_termlist },
     { "exit", cmd_exit },
     { "session-status", cmd_session_status },
-    { "server-status", cmd_server_status },
+    { "service", cmd_service },
     { "ping", cmd_ping },
     { "record", cmd_record },
     { "info", cmd_info },
+    { "stop", cmd_stop },
     {0,0}
 };