From: Adam Dickmeiss <adam@indexdata.dk>
Date: Sat, 1 Apr 2006 11:45:23 +0000 (+0000)
Subject: Fixed 523: PQF parser does not properly diagnose @prox syntax errors.
X-Git-Tag: YAZ.2.1.18~44
X-Git-Url: http://jsfdemo.indexdata.com/cgi-bin?a=commitdiff_plain;h=a7c0fe1d8d8d89204f5c25a72d556d3d67b32d35;p=yaz-moved-to-github.git

Fixed 523: PQF parser does not properly diagnose @prox syntax errors.
Added a few PQF parser diagnostics to improve error messages.
Catch terms that aren't unsigned ints.. E.g. the invalid @attr p=q x .
---

diff --git a/include/yaz/pquery.h b/include/yaz/pquery.h
index 183201e..44813f8 100644
--- a/include/yaz/pquery.h
+++ b/include/yaz/pquery.h
@@ -23,7 +23,7 @@
  * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
  * OF THIS SOFTWARE.
  *
- * $Id: pquery.h,v 1.7 2005-06-25 15:46:03 adam Exp $
+ * $Id: pquery.h,v 1.8 2006-04-01 11:45:23 adam Exp $
  */
 /**
  * \file pquery.h
@@ -78,6 +78,12 @@ YAZ_EXPORT int yaz_pqf_error (YAZ_PQF_Parser p, const char **msg, size_t *off);
 /* internal failure */
 #define YAZ_PQF_ERROR_INTERNAL 6
 
+/* bad proximity args */
+#define YAZ_PQF_ERROR_PROXIMITY 7
+
+/* bad unsigned integer */
+#define YAZ_PQF_ERROR_BAD_INTEGER 8
+
 YAZ_END_CDECL
 
 #endif
diff --git a/src/pquery.c b/src/pquery.c
index 9ee3584..99786fc 100644
--- a/src/pquery.c
+++ b/src/pquery.c
@@ -2,7 +2,7 @@
  * Copyright (C) 1995-2005, Index Data ApS
  * See the file LICENSE for details.
  *
- * $Id: pquery.c,v 1.7 2006-02-19 18:34:13 adam Exp $
+ * $Id: pquery.c,v 1.8 2006-04-01 11:45:23 adam Exp $
  */
 /**
  * \file pquery.c
@@ -194,6 +194,7 @@ static int p_query_parse_attr(struct yaz_pqf_parser *li, ODR o,
                               char **attr_clist, oid_value *attr_set)
 {
     const char *cp;
+
     if (!(cp = strchr (li->lex_buf, '=')) ||
         (size_t) (cp-li->lex_buf) > li->lex_len)
     {
@@ -221,8 +222,13 @@ static int p_query_parse_attr(struct yaz_pqf_parser *li, ODR o,
         else
             attr_set[num_attr] = VAL_NONE;
     }
+    if (*li->lex_buf < '0' || *li->lex_buf > '9')
+    {
+        li->error = YAZ_PQF_ERROR_BAD_INTEGER;
+        return 0;
+    }
     attr_list[2*num_attr] = atoi(li->lex_buf);
-        cp++;
+    cp++;
     if (*cp >= '0' && *cp <= '9')
     {
         attr_list[2*num_attr+1] = atoi (cp);
@@ -403,29 +409,54 @@ static Z_ProximityOperator *rpn_proximity (struct yaz_pqf_parser *li, ODR o)
         p->exclusion = odr_intdup (o, 1);
     else if (*li->lex_buf == '0')
         p->exclusion = odr_intdup (o, 0);
-    else
+    else if (*li->lex_buf == 'v' || *li->lex_buf == 'n')
         p->exclusion = NULL;
+    else
+    {
+        li->error = YAZ_PQF_ERROR_PROXIMITY;
+        return NULL;
+    }
 
     if (!lex (li))
     {
         li->error = YAZ_PQF_ERROR_MISSING;
         return NULL;
     }
-    p->distance = odr_intdup (o, atoi(li->lex_buf));
+    if (*li->lex_buf >= '0' && *li->lex_buf <= '9')
+        p->distance = odr_intdup (o, atoi (li->lex_buf));
+    else
+    {
+        li->error = YAZ_PQF_ERROR_BAD_INTEGER;
+        return NULL;
+    }
 
     if (!lex (li))
     {
         li->error = YAZ_PQF_ERROR_MISSING;
         return NULL;
     }
-    p->ordered = odr_intdup (o, atoi (li->lex_buf));
+    if (*li->lex_buf == '1')
+        p->ordered = odr_intdup (o, 1);
+    else if (*li->lex_buf == '0')
+        p->ordered = odr_intdup (o, 0);
+    else
+    {
+        li->error = YAZ_PQF_ERROR_PROXIMITY;
+        return NULL;
+    }
     
     if (!lex (li))
     {
         li->error = YAZ_PQF_ERROR_MISSING;
         return NULL;
     }
-    p->relationType = odr_intdup (o, atoi (li->lex_buf));
+    if (*li->lex_buf >= '0' && *li->lex_buf <= '9')
+        p->relationType = odr_intdup (o, atoi (li->lex_buf));
+    else
+    {
+        li->error = YAZ_PQF_ERROR_BAD_INTEGER;
+        return NULL;
+    }
 
     if (!lex (li))
     {
@@ -439,12 +470,25 @@ static Z_ProximityOperator *rpn_proximity (struct yaz_pqf_parser *li, ODR o)
     else
         p->which = atoi (li->lex_buf);
 
+    if (p->which != Z_ProximityOperator_known
+        && p->which != Z_ProximityOperator_private)
+    {
+        li->error = YAZ_PQF_ERROR_PROXIMITY;
+        return NULL;
+    }
+
     if (!lex (li))
     {
         li->error = YAZ_PQF_ERROR_MISSING;
         return NULL;
     }
-    p->u.known = odr_intdup (o, atoi(li->lex_buf));
+    if (*li->lex_buf >= '0' && *li->lex_buf <= '9')
+        p->u.known = odr_intdup (o, atoi(li->lex_buf));
+    else
+    {
+        li->error = YAZ_PQF_ERROR_BAD_INTEGER;
+        return NULL;
+    }
     return p;
 }
 
@@ -800,6 +844,10 @@ int yaz_pqf_error (YAZ_PQF_Parser p, const char **msg, size_t *off)
         *msg = "bad attribute specification"; break;
     case YAZ_PQF_ERROR_INTERNAL:
         *msg = "internal error"; break;
+    case YAZ_PQF_ERROR_PROXIMITY:
+        *msg = "proximity error"; break;
+    case YAZ_PQF_ERROR_BAD_INTEGER:
+        *msg = "bad integer"; break;
     default:
         *msg = "unknown error"; break;
     }
diff --git a/test/Makefile.am b/test/Makefile.am
index 790603c..fd5eda6 100644
--- a/test/Makefile.am
+++ b/test/Makefile.am
@@ -1,9 +1,9 @@
 ## Copyright (C) 1994-2006, Index Data
 ## All rights reserved.
-## $Id: Makefile.am,v 1.11 2006-01-27 17:33:15 adam Exp $
+## $Id: Makefile.am,v 1.12 2006-04-01 11:45:23 adam Exp $
 
 check_PROGRAMS = tsticonv tstnmem tstmatchstr tstwrbuf tstodr tstccl tstlog \
- tstsoap1 tstsoap2 tstodrstack tstlogthread tstxmlquery
+ tstsoap1 tstsoap2 tstodrstack tstlogthread tstxmlquery tstpquery
 check_SCRIPTS = tstcql.sh tstmarc.sh
 
 TESTS = $(check_PROGRAMS) $(check_SCRIPTS)
@@ -42,4 +42,5 @@ tstsoap1_SOURCES = tstsoap1.c
 tstsoap2_SOURCES = tstsoap2.c
 tstlogthread_SOURCES = tstlogthread.c
 tstxmlquery_SOURCES = tstxmlquery.c
+tstpquery_SOURCES = tstpquery.c
 
diff --git a/test/tstpquery.c b/test/tstpquery.c
new file mode 100644
index 0000000..c36e65d
--- /dev/null
+++ b/test/tstpquery.c
@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 1995-2005, Index Data ApS
+ * See the file LICENSE for details.
+ *
+ * $Id: tstpquery.c,v 1.1 2006-04-01 11:45:23 adam Exp $
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+
+#include <yaz/wrbuf.h>
+#include <yaz/querytowrbuf.h>
+#include <yaz/pquery.h>
+#include <yaz/test.h>
+
+int expect_pqf(const char *pqf, const char *expect_pqf, int expect_error)
+{
+    YAZ_PQF_Parser parser = yaz_pqf_create();
+    int res = 0;
+    ODR odr = odr_createmem(ODR_ENCODE);
+    Z_RPNQuery *rpn;
+
+    if (!parser)
+        return 0;
+
+    if (!odr)
+        return 0;
+
+    rpn = yaz_pqf_parse(parser, odr, pqf);
+
+    if (!rpn)
+    {
+        const char *msg;
+        size_t offset;
+        int got_error = yaz_pqf_error (parser, &msg, &offset);
+
+        if (expect_error == got_error)
+            res = 1;
+    }
+    else if (expect_error == YAZ_PQF_ERROR_NONE)
+    {
+        WRBUF wrbuf = wrbuf_alloc();
+        
+        if (wrbuf)
+        {
+            yaz_rpnquery_to_wrbuf(wrbuf, rpn);
+            
+            if (!strcmp(wrbuf_buf(wrbuf), expect_pqf))
+                res = 1;
+            wrbuf_free(wrbuf, 1);
+        }
+    }
+    yaz_pqf_destroy(parser);
+    odr_destroy(odr);
+    return res;
+}
+
+static void tst()
+{
+    YAZ_CHECK(expect_pqf("a", "@attrset Bib-1 a", YAZ_PQF_ERROR_NONE));
+    YAZ_CHECK(expect_pqf("@attr 1=4 a", "@attrset Bib-1 @attr 1=4 a", YAZ_PQF_ERROR_NONE));
+    YAZ_CHECK(expect_pqf("a b", "", YAZ_PQF_ERROR_EXTRA));
+    YAZ_CHECK(expect_pqf("@prox 0 0 0 0 k 0 a b",
+                         "@attrset Bib-1 @prox 0 0 0 0 k 0 a b",
+                         YAZ_PQF_ERROR_NONE));
+}
+
+int main (int argc, char **argv)
+{
+    YAZ_CHECK_INIT(argc, argv);
+    tst();
+    YAZ_CHECK_TERM;
+}
+
+/*
+ * Local variables:
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ * vim: shiftwidth=4 tabstop=8 expandtab
+ */
+