Copyright year
[yaz-moved-to-github.git] / src / srwutil.c
index 9e698c6..25f2fca 100644 (file)
@@ -1,8 +1,8 @@
 /*
- * Copyright (C) 1995-2005, Index Data ApS
+ * Copyright (C) 1995-2006, Index Data ApS
  * See the file LICENSE for details.
  *
- * $Id: srwutil.c,v 1.45 2006-07-06 10:17:54 adam Exp $
+ * $Id: srwutil.c,v 1.51 2006-10-05 15:19:33 adam Exp $
  */
 /**
  * \file srwutil.c
@@ -41,9 +41,10 @@ void encode_uri_char(char *dst, char ch)
     }
 }
 
-void yaz_array_to_uri(char **path, ODR o, char **name, char **value)
+static void yaz_array_to_uri_ex(char **path, ODR o, char **name, char **value,
+                                const char *extra_args)
 {
-    size_t i, szp = 0, sz = 0;
+    size_t i, szp = 0, sz = extra_args ? 1+strlen(extra_args) : 1;
     for(i = 0; name[i]; i++)
         sz += strlen(name[i]) + 3 + strlen(value[i]) * 3;
     *path = odr_malloc(o, sz);
@@ -67,9 +68,21 @@ void yaz_array_to_uri(char **path, ODR o, char **name, char **value)
             szp += vlen;
         }
     }
+    if (extra_args)
+    {
+        if (i)
+            (*path)[szp++] = '&';
+        memcpy(*path + szp, extra_args, strlen(extra_args));
+        szp += strlen(extra_args);
+    }
     (*path)[szp] = '\0';
 }
 
+void yaz_array_to_uri(char **path, ODR o, char **name, char **value)
+{
+    yaz_array_to_uri_ex(path, o, name, value, 0);
+}
+
 int yaz_uri_array(const char *path, ODR o, char ***name, char ***val)
 {
     int no = 2;
@@ -226,8 +239,8 @@ static int yaz_base64decode(const char *in, char *out)
  * Look for authentication tokens in HTTP Basic parameters or in x-username/x-password
  * parameters. Added by SH.
  */
-static void yaz_srw_decodeauth(Z_SRW_PDU *sr, Z_HTTP_Request *hreq, char *username,
-        char *password, ODR decode)
+static void yaz_srw_decodeauth(Z_SRW_PDU *sr, Z_HTTP_Request *hreq,
+                               char *username, char *password, ODR decode)
 {
     const char *basic = z_HTTP_header_lookup(hreq->headers, "Authorization");
 
@@ -398,10 +411,10 @@ int yaz_srw_decode(Z_HTTP_Request *hreq, Z_SRW_PDU **srw_pdu,
     return 2;
 }
 
-static int yaz_sru_integer_decode(ODR odr, const char *pname, 
+static int yaz_sru_decode_integer(ODR odr, const char *pname, 
                                   const char *valstr, int **valp,
-                                  Z_SRW_diagnostic **diag, int *num_diag)
-
+                                  Z_SRW_diagnostic **diag, int *num_diag,
+                                  int min_value)
 {
     int ival;
     if (!valstr)
@@ -412,9 +425,16 @@ static int yaz_sru_integer_decode(ODR odr, const char *pname,
                                YAZ_SRW_UNSUPP_PARAMETER_VALUE, pname);
         return 0;
     }
+    if (min_value >= 0 && ival < min_value)
+    {
+        yaz_add_srw_diagnostic(odr, diag, num_diag,
+                               YAZ_SRW_UNSUPP_PARAMETER_VALUE, pname);
+        return 0;
+    }
     *valp = odr_intdup(odr, ival);
     return 1;
 }
+
 /**
   http://www.loc.gov/z3950/agency/zing/srw/service.html
 */ 
@@ -586,13 +606,13 @@ int yaz_sru_decode(Z_HTTP_Request *hreq, Z_SRW_PDU **srw_pdu,
             sr->u.request->recordPacking = recordPacking;
             sr->u.request->stylesheet = stylesheet;
 
-            yaz_sru_integer_decode(decode, "maximumRecords", maximumRecords, 
+            yaz_sru_decode_integer(decode, "maximumRecords", maximumRecords, 
                                    &sr->u.request->maximumRecords, 
-                                   diag, num_diag);
-
-            yaz_sru_integer_decode(decode, "startRecord", startRecord, 
+                                   diag, num_diag, 0);
+            
+            yaz_sru_decode_integer(decode, "startRecord", startRecord, 
                                    &sr->u.request->startRecord,
-                                   diag, num_diag);
+                                   diag, num_diag, 1);
 
             sr->u.request->database = db;
 
@@ -664,15 +684,15 @@ int yaz_sru_decode(Z_HTTP_Request *hreq, Z_SRW_PDU **srw_pdu,
                     YAZ_SRW_MANDATORY_PARAMETER_NOT_SUPPLIED, "scanClause");
             sr->u.scan_request->database = db;
             
-            yaz_sru_integer_decode(decode, "maximumTerms",
+            yaz_sru_decode_integer(decode, "maximumTerms",
                                    maximumTerms, 
                                    &sr->u.scan_request->maximumTerms,
-                                   diag, num_diag);
-
-            yaz_sru_integer_decode(decode, "responsePosition",
+                                   diag, num_diag, 0);
+            
+            yaz_sru_decode_integer(decode, "responsePosition",
                                    responsePosition, 
                                    &sr->u.scan_request->responsePosition,
-                                   diag, num_diag);
+                                   diag, num_diag, 0);
 
             sr->u.scan_request->stylesheet = stylesheet;
 
@@ -740,13 +760,19 @@ Z_SRW_extra_record *yaz_srw_get_extra_record(ODR o)
     return res;
 }
 
-Z_SRW_PDU *yaz_srw_get(ODR o, int which)
+Z_SRW_PDU *yaz_srw_get_core_v_1_1(ODR o)
 {
-    Z_SRW_PDU *sr = (Z_SRW_PDU *) odr_malloc(o, sizeof(*o));
+    Z_SRW_PDU *p = (Z_SRW_PDU *) odr_malloc(o, sizeof(*p));
+    p->srw_version = odr_strdup(o, "1.1");
+    p->username = 0;
+    p->password = 0;
+    p->extra_args = 0;
+    return p;
+}
 
-    sr->username = 0;
-    sr->password = 0;
-    sr->srw_version = odr_strdup(o, "1.1");
+Z_SRW_PDU *yaz_srw_get(ODR o, int which)
+{
+    Z_SRW_PDU *sr = yaz_srw_get_core_v_1_1(o);
     sr->which = which;
     switch(which)
     {
@@ -1168,11 +1194,13 @@ int yaz_sru_get_encode(Z_HTTP_Request *hreq, Z_SRW_PDU *srw_pdu,
 
     if (yaz_get_sru_parms(srw_pdu, encode, name, value))
         return -1;
-    yaz_array_to_uri(&uri_args, encode, name, value);
+    yaz_array_to_uri_ex(&uri_args, encode, name, value, srw_pdu->extra_args);
 
     hreq->method = "GET";
     
-    path = odr_malloc(encode, strlen(hreq->path) + strlen(uri_args) + 3);
+    path = odr_malloc(encode, strlen(hreq->path) + strlen(uri_args) + 4
+                      +(srw_pdu->extra_args ? strlen(srw_pdu->extra_args) : 0)
+        );
     sprintf(path, "%s?%s", hreq->path, uri_args);
     hreq->path = path;
 
@@ -1190,7 +1218,7 @@ int yaz_sru_post_encode(Z_HTTP_Request *hreq, Z_SRW_PDU *srw_pdu,
     if (yaz_get_sru_parms(srw_pdu, encode, name, value))
         return -1;
 
-    yaz_array_to_uri(&uri_args, encode, name, value);
+    yaz_array_to_uri_ex(&uri_args, encode, name, value, srw_pdu->extra_args);
 
     hreq->method = "POST";