Fixed bug #1187: command=show crashes if used before a search is

[pazpar2-moved-to-github.git] / src / http_command.c

diff --git a/src/http_command.c b/src/http_command.c
index 97aac8c..3128fec 100644 (file)
--- a/src/http_command.c
+++ b/src/http_command.c
@@ -1,4 +1,4 @@
-/* $Id: http_command.c,v 1.47 2007-06-05 14:09:10 marc Exp $
+/* $Id: http_command.c,v 1.52 2007-06-13 13:04:34 adam Exp $
    Copyright (c) 2006-2007, Index Data.
 
 This file is part of Pazpar2.
@@ -20,7 +20,7 @@ Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
  */
 
 /*
- * $Id: http_command.c,v 1.47 2007-06-05 14:09:10 marc Exp $
+ * $Id: http_command.c,v 1.52 2007-06-13 13:04:34 adam Exp $
  */
 
 #include <stdio.h>
@@ -60,7 +60,6 @@ struct http_session {
 };
 
 static struct http_session *session_list = 0;
-
 void http_session_destroy(struct http_session *s);
 
 static void session_timeout(IOCHAN i, int event)
@@ -98,27 +97,58 @@ void http_session_destroy(struct http_session *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)
+{
+    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"},
+        { 0, 0 }
+    };
+    int i = 0;
+    while (ar[i].msg)
+    {
+        if (code == ar[i].code)
+            return ar[i].msg;
+        i++;
+    }
+    return "No error";
+}
+
 static void error(struct http_response *rs, 
-                  const char *code, const char *msg, const char *extra)
+                  enum pazpar2_error_code code,
+                  const char *addinfo)
 {
     struct http_channel *c = rs->channel;
     char text[1024];
-    char *sep = extra ? ": " : "";
+    const char *http_status = "417";
+    const char *msg = get_msg(code);
 
     rs->msg = nmem_strdup(c->nmem, msg);
-    strcpy(rs->code, code);
+    strcpy(rs->code, http_status);
 
     yaz_snprintf(text, sizeof(text),
-                 "<error code=\"general\">%s%s%s</error>", msg, sep,
-                 extra ? extra : "");
+                 "<error code=\"%d\" msg=\"%s\">%s</error>", (int) code,
+                 msg, addinfo ? addinfo : "");
 
-    yaz_log(YLOG_WARN, "HTTP %s %s%s%s", code, msg, sep,
-            extra ? extra : "");
+    yaz_log(YLOG_WARN, "HTTP %s %s%s%s", http_status,
+            msg, addinfo ? ": " : "" , addinfo ? addinfo : "");
     rs->payload = nmem_strdup(c->nmem, text);
     http_send_response(c);
 }
@@ -156,7 +186,7 @@ static struct http_session *locate_session(struct http_request *rq, struct http_
 
     if (!session)
     {
-        error(rs, "417", "Must supply session", 0);
+        error(rs, PAZPAR2_MISSING_PARAMETER, "session");
         return 0;
     }
     id = atoi(session);
@@ -166,7 +196,7 @@ static struct http_session *locate_session(struct http_request *rq, struct http_
             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;
 }
 
@@ -189,7 +219,7 @@ static int process_settings(struct session *se, struct http_request *rq,
             nmem_strsplit(se->session_nmem, "[]", a->name, &res, &num);
             if (num != 2)
             {
-                error(rs, "417", "Malformed setting argument", a->name);
+                error(rs, PAZPAR2_MALFORMED_SETTING, a->name);
                 return -1;
             }
             setting = res[0];
@@ -263,7 +293,6 @@ static void targets_termlist(WRBUF wrbuf, struct session *se, int num)
     
         wrbuf_puts(wrbuf, "<term>\n");
 
-        //wrbuf_printf(wrbuf, "<id>%s</id>\n", ht[i].id);
         wrbuf_puts(wrbuf, "<id>");
         wrbuf_xmlputs(wrbuf, ht[i].id);
         wrbuf_puts(wrbuf, "</id>\n");
@@ -277,7 +306,6 @@ static void targets_termlist(WRBUF wrbuf, struct session *se, int num)
         
         wrbuf_printf(wrbuf, "<frequency>%d</frequency>\n", ht[i].hits);
         
-        //wrbuf_printf(wrbuf, "<state>%s</state>\n", ht[i].state);
         wrbuf_puts(wrbuf, "<state>");
         wrbuf_xmlputs(wrbuf, ht[i].state);
         wrbuf_puts(wrbuf, "</state>\n");
@@ -375,7 +403,7 @@ static void cmd_bytarget(struct http_channel *c)
         return;
     if (!(ht = hitsbytarget(s->psession, &count)))
     {
-        error(rs, "500", "Failed to retrieve hitcounts", 0);
+        error(rs, PAZPAR2_HITCOUNTS_FAILED, 0);
         return;
     }
     wrbuf_rewind(c->wrbuf);
@@ -385,7 +413,6 @@ static void cmd_bytarget(struct http_channel *c)
     {
         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");
@@ -394,10 +421,9 @@ static void cmd_bytarget(struct http_channel *c)
         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, "</state>\n");
 
         wrbuf_puts(c->wrbuf, "</target>");
     }
@@ -425,7 +451,7 @@ static void write_metadata(WRBUF w, struct conf_service *service,
             switch (cmd->type)
             {
                 case Metadata_type_generic:
-                    wrbuf_puts(w, md->data.text);
+                    wrbuf_xmlputs(w, md->data.text);
                     break;
                 case Metadata_type_year:
                     wrbuf_printf(w, "%d", md->data.number.min);
@@ -473,14 +499,14 @@ static void cmd_record(struct http_channel *c)
         return;
     if (!idstr)
     {
-        error(rs, "417", "Must supply id", 0);
+        error(rs, PAZPAR2_MISSING_PARAMETER, "id");
         return;
     }
     wrbuf_rewind(c->wrbuf);
     id = atoi(idstr);
     if (!(rec = show_single(s->psession, id)))
     {
-        error(rs, "500", "Record missing", 0);
+        error(rs, PAZPAR2_RECORD_MISSING, idstr);
         return;
     }
     wrbuf_puts(c->wrbuf, "<record>\n");
@@ -524,7 +550,7 @@ static void show_records(struct http_channel *c, int active)
         sort = "relevance";
     if (!(sp = reclist_parse_sortparms(c->nmem, sort)))
     {
-        error(rs, "500", "Bad sort parameters", 0);
+        error(rs, PAZPAR2_MALFORMED_PARAMETER_VALUE, "sort");
         return;
     }
 
@@ -636,24 +662,25 @@ static void cmd_search(struct http_channel *c)
     struct http_session *s = locate_session(rq, rs);
     char *query = http_argbyname(rq, "query");
     char *filter = http_argbyname(rq, "filter");
-    char *res;
+    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, "417", "Query not UTF-8 encoded", 0);
+        error(rs, PAZPAR2_MALFORMED_PARAMETER_ENCODING, "query");
         return;
     }
-    res = search(s->psession, query, filter);
-    if (res)
+    code = search(s->psession, query, filter, &addinfo);
+    if (code)
     {
-        error(rs, "417", res, 0);
+        error(rs, code, addinfo);
         return;
     }
     rs->payload = "<search><status>OK</status></search>";
@@ -702,15 +729,12 @@ static void cmd_info(struct http_channel *c)
     wrbuf_rewind(c->wrbuf);
     wrbuf_puts(c->wrbuf, "<info>\n");
     wrbuf_puts(c->wrbuf, " <version>\n");
-    //wrbuf_printf(c->wrbuf, "  <pazpar2>%s</pazpar2>\n", VERSION);
     wrbuf_puts(c->wrbuf, "<pazpar2>");
     wrbuf_xmlputs(c->wrbuf, VERSION);
     wrbuf_puts(c->wrbuf, "</pazpar2>");
 
 
     yaz_version(yaz_version_str, 0);
-    //wrbuf_printf(c->wrbuf, "  <yaz compiled=\"%s\">%s</yaz>\n",
-    //             YAZ_VERSION, yaz_version_str);
     wrbuf_puts(c->wrbuf, "  <yaz compiled=\"");
     wrbuf_xmlputs(c->wrbuf, YAZ_VERSION);
     wrbuf_puts(c->wrbuf, "\">");
@@ -755,7 +779,7 @@ void http_command(struct http_channel *c)
 
     if (!command)
     {
-        error(rs, "417", "Must supply command", 0);
+        error(rs, PAZPAR2_MISSING_PARAMETER, "command");
         return;
     }
     for (i = 0; commands[i].name; i++)
@@ -765,7 +789,7 @@ void http_command(struct http_channel *c)
             break;
         }
     if (!commands[i].name)
-        error(rs, "417", "Unknown command", command);
+        error(rs, PAZPAR2_MALFORMED_PARAMETER_VALUE, "command");
 
     return;
 }