X-Git-Url: http://sru.miketaylor.org.uk/?a=blobdiff_plain;f=src%2Futil.cpp;h=dcd751ba4c1e5f04b3555ed17dedef71d67993e4;hb=1e61b0aa05e2351e33d909f7503eaf936a2d9bb0;hp=38fd9e2f73230bc525518d8e5c52954d4d5cc14f;hpb=84e8420d3ac503078b37b947b5bc71fa2fe56801;p=metaproxy-moved-to-github.git

diff --git a/src/util.cpp b/src/util.cpp
index 38fd9e2..dcd751b 100644
--- a/src/util.cpp
+++ b/src/util.cpp
@@ -1,7 +1,7 @@
-/* $Id: util.cpp,v 1.8 2006-01-17 16:56:48 adam Exp $
-   Copyright (c) 2005, Index Data.
+/* $Id: util.cpp,v 1.17 2006-06-10 14:29:13 adam Exp $
+   Copyright (c) 2005-2006, Index Data.
 
-%LICENSE%
+   See the LICENSE file for details
  */
 
 #include "config.hpp"
@@ -9,10 +9,81 @@
 #include <yaz/odr.h>
 #include <yaz/pquery.h>
 #include <yaz/otherinfo.h>
+#include <yaz/querytowrbuf.h> // for yaz_query_to_wrbuf()
 #include "util.hpp"
 
+//#include <iostream>
 
-bool yp2::util::pqf(ODR odr, Z_APDU *apdu, const std::string &q) {
+namespace mp = metaproxy_1;
+
+// Doxygen doesn't like mp::util, so we use this instead
+namespace mp_util = metaproxy_1::util;
+
+int mp_util::memcmp2(const void *buf1, int len1,
+                     const void *buf2, int len2)
+{
+    int d = len1 - len2;
+
+    // compare buffer (common length)
+    int c = memcmp(buf1, buf2, d > 0 ? len2 : len1);
+    if (c > 0)
+        return 1;
+    else if (c < 0)
+        return -1;
+    
+    // compare (remaining bytes)
+    if (d > 0)
+        return 1;
+    else if (d < 0)
+        return -1;
+    return 0;
+}
+
+
+std::string mp_util::database_name_normalize(const std::string &s)
+{
+    std::string r = s;
+    size_t i;
+    for (i = 0; i < r.length(); i++)
+    {
+        int ch = r[i];
+        if (ch >= 'A' && ch <= 'Z')
+            r[i] = ch + 'a' - 'A';
+    }
+    return r;
+
+}
+
+void mp_util::piggyback(int smallSetUpperBound,
+                                  int largeSetLowerBound,
+                                  int mediumSetPresentNumber,
+                                  int result_set_size,
+                                  int &number_to_present)
+{
+    // deal with piggyback
+
+    if (result_set_size < smallSetUpperBound)
+    {
+        // small set . Return all records in set
+        number_to_present = result_set_size;
+    }
+    else if (result_set_size > largeSetLowerBound)
+    {
+        // large set . Return no records
+        number_to_present = 0;
+    }
+    else
+    {
+        // medium set . Return mediumSetPresentNumber records
+        number_to_present = mediumSetPresentNumber;
+        if (number_to_present > result_set_size)
+            number_to_present = result_set_size;
+    }
+}
+
+
+bool mp_util::pqf(ODR odr, Z_APDU *apdu, const std::string &q)
+{
     YAZ_PQF_Parser pqf_parser = yaz_pqf_create();
     
     Z_RPNQuery *rpn = yaz_pqf_parse(pqf_parser, odr, q.c_str());
@@ -30,8 +101,51 @@ bool yp2::util::pqf(ODR odr, Z_APDU *apdu, const std::string &q) {
     return true;
 }
 
-void yp2::util::get_default_diag(Z_DefaultDiagFormat *r,
-                                 int &error_code, std::string &addinfo)
+
+std::string mp_util::zQueryToString(Z_Query *query)
+{
+    std::string query_str = "";
+
+    if (query && query->which == Z_Query_type_1){
+        Z_RPNQuery *rpn = query->u.type_1;
+        
+        if (rpn){
+            
+            // allocate wrbuf (strings in YAZ!)
+            WRBUF w = wrbuf_alloc();
+            
+            // put query in w
+            yaz_rpnquery_to_wrbuf(w, rpn);
+            
+            // from w to std::string
+            query_str = std::string(wrbuf_buf(w), wrbuf_len(w));
+            
+            // destroy wrbuf
+            wrbuf_free(w, 1);
+        }
+    }
+
+#if 0
+    if (query && query->which == Z_Query_type_1){
+        
+        // allocate wrbuf (strings in YAZ!)
+        WRBUF w = wrbuf_alloc();
+        
+        // put query in w
+        yaz_query_to_wrbuf(w, query);
+        
+        // from w to std::string
+        query_str = std::string(wrbuf_buf(w), wrbuf_len(w));
+        
+        // destroy wrbuf
+        wrbuf_free(w, 1);
+    }    
+#endif
+    return query_str;
+}
+
+void mp_util::get_default_diag(Z_DefaultDiagFormat *r,
+                                         int &error_code, std::string &addinfo)
 {
     error_code = *r->condition;
     switch (r->which)
@@ -45,8 +159,8 @@ void yp2::util::get_default_diag(Z_DefaultDiagFormat *r,
     }
 }
 
-void yp2::util::get_init_diagnostics(Z_InitResponse *initrs,
-                                     int &error_code, std::string &addinfo)
+void mp_util::get_init_diagnostics(
+    Z_InitResponse *initrs, int &error_code, std::string &addinfo)
 {
     Z_External *uif = initrs->userInformationField;
     
@@ -69,7 +183,7 @@ void yp2::util::get_init_diagnostics(Z_InitResponse *initrs,
                 {
                     Z_DiagnosticFormat_s *ds = diag->elements[0];
                     if (ds->which == Z_DiagnosticFormat_s_defaultDiagRec)
-                        yp2::util::get_default_diag(ds->u.defaultDiagRec,
+                        mp::util::get_default_diag(ds->u.defaultDiagRec,
                                                     error_code, addinfo);
                 }
             } 
@@ -77,9 +191,10 @@ void yp2::util::get_init_diagnostics(Z_InitResponse *initrs,
     }
 }
 
-int yp2::util::get_vhost_otherinfo(Z_OtherInformation **otherInformation,
-                                   bool remove_flag,
-                                   std::list<std::string> &vhosts)
+int mp_util::get_vhost_otherinfo(
+    Z_OtherInformation **otherInformation,
+    bool remove_flag,
+    std::list<std::string> &vhosts)
 {
     int cat;
     for (cat = 1; ; cat++)
@@ -98,8 +213,21 @@ int yp2::util::get_vhost_otherinfo(Z_OtherInformation **otherInformation,
     return cat;
 }
 
-void yp2::util::split_zurl(std::string zurl, std::string &host,
-                           std::list<std::string> &db)
+void mp_util::set_vhost_otherinfo(
+    Z_OtherInformation **otherInformation, ODR odr,
+    const std::list<std::string> &vhosts)
+{
+    int cat;
+    std::list<std::string>::const_iterator it = vhosts.begin();
+    for (cat = 1; it != vhosts.end() ; cat++, it++)
+    {
+        yaz_oi_set_string_oidval(otherInformation, odr,
+                                 VAL_PROXY, cat, it->c_str());
+    }
+}
+
+void mp_util::split_zurl(std::string zurl, std::string &host,
+                                   std::list<std::string> &db)
 {
     const char *zurl_cstr = zurl.c_str();
     const char *sep = strchr(zurl_cstr, '/');
@@ -128,8 +256,9 @@ void yp2::util::split_zurl(std::string zurl, std::string &host,
     }
 }
 
-bool yp2::util::set_databases_from_zurl(ODR odr, std::string zurl,
-                                        int *db_num, char ***db_strings)
+bool mp_util::set_databases_from_zurl(
+    ODR odr, std::string zurl,
+    int *db_num, char ***db_strings)
 {
     std::string host;
     std::list<std::string> dblist;
@@ -147,27 +276,27 @@ bool yp2::util::set_databases_from_zurl(ODR odr, std::string zurl,
     return true;
 }
 
-yp2::odr::odr(int type)
+mp::odr::odr(int type)
 {
     m_odr = odr_createmem(type);
 }
 
-yp2::odr::odr()
+mp::odr::odr()
 {
     m_odr = odr_createmem(ODR_ENCODE);
 }
 
-yp2::odr::~odr()
+mp::odr::~odr()
 {
     odr_destroy(m_odr);
 }
 
-yp2::odr::operator ODR() const
+mp::odr::operator ODR() const
 {
     return m_odr;
 }
 
-Z_APDU *yp2::odr::create_close(Z_APDU *in_apdu,
+Z_APDU *mp::odr::create_close(Z_APDU *in_apdu,
                                int reason, const char *addinfo)
 {
     Z_APDU *apdu = create_APDU(Z_APDU_close, in_apdu);
@@ -178,20 +307,20 @@ Z_APDU *yp2::odr::create_close(Z_APDU *in_apdu,
     return apdu;
 }
 
-Z_APDU *yp2::odr::create_APDU(int type, Z_APDU *in_apdu)
+Z_APDU *mp::odr::create_APDU(int type, Z_APDU *in_apdu)
 {
-    return yp2::util::create_APDU(m_odr, type, in_apdu);
+    return mp::util::create_APDU(m_odr, type, in_apdu);
 }
 
-Z_APDU *yp2::util::create_APDU(ODR odr, int type, Z_APDU *in_apdu)
+Z_APDU *mp_util::create_APDU(ODR odr, int type, Z_APDU *in_apdu)
 {
     Z_APDU *out_apdu = zget_APDU(odr, type);
 
-    Z_ReferenceId **id_to = yp2::util::get_referenceId(out_apdu);
+    Z_ReferenceId **id_to = mp::util::get_referenceId(out_apdu);
     *id_to = 0;
     if (in_apdu)
     {
-        Z_ReferenceId **id_from = yp2::util::get_referenceId(in_apdu);
+        Z_ReferenceId **id_from = mp::util::get_referenceId(in_apdu);
         if (id_from && *id_from && id_to)
         {
             *id_to = (Z_ReferenceId*) odr_malloc (odr, sizeof(**id_to));
@@ -205,7 +334,7 @@ Z_APDU *yp2::util::create_APDU(ODR odr, int type, Z_APDU *in_apdu)
     return out_apdu;
 }
 
-Z_APDU *yp2::odr::create_initResponse(Z_APDU *in_apdu,
+Z_APDU *mp::odr::create_initResponse(Z_APDU *in_apdu,
                                       int error, const char *addinfo)
 {
     Z_APDU *apdu = create_APDU(Z_APDU_initResponse, in_apdu);
@@ -218,7 +347,7 @@ Z_APDU *yp2::odr::create_initResponse(Z_APDU *in_apdu,
     return apdu;
 }
 
-Z_APDU *yp2::odr::create_searchResponse(Z_APDU *in_apdu,
+Z_APDU *mp::odr::create_searchResponse(Z_APDU *in_apdu,
                                         int error, const char *addinfo)
 {
     Z_APDU *apdu = create_APDU(Z_APDU_searchResponse, in_apdu);
@@ -235,7 +364,7 @@ Z_APDU *yp2::odr::create_searchResponse(Z_APDU *in_apdu,
     return apdu;
 }
 
-Z_APDU *yp2::odr::create_presentResponse(Z_APDU *in_apdu,
+Z_APDU *mp::odr::create_presentResponse(Z_APDU *in_apdu,
                                          int error, const char *addinfo)
 {
     Z_APDU *apdu = create_APDU(Z_APDU_presentResponse, in_apdu);
@@ -243,6 +372,7 @@ Z_APDU *yp2::odr::create_presentResponse(Z_APDU *in_apdu,
     {
         Z_Records *rec = (Z_Records *) odr_malloc(m_odr, sizeof(Z_Records));
         apdu->u.presentResponse->records = rec;
+        
         rec->which = Z_Records_NSD;
         rec->u.nonSurrogateDiagnostic =
             zget_DefaultDiagFormat(m_odr, error, addinfo);
@@ -251,28 +381,67 @@ Z_APDU *yp2::odr::create_presentResponse(Z_APDU *in_apdu,
     return apdu;
 }
 
-Z_APDU *yp2::odr::create_scanResponse(Z_APDU *in_apdu,
+Z_APDU *mp::odr::create_scanResponse(Z_APDU *in_apdu,
                                       int error, const char *addinfo)
 {
     Z_APDU *apdu = create_APDU(Z_APDU_scanResponse, in_apdu);
+    Z_ScanResponse *res = apdu->u.scanResponse;
+    res->entries = (Z_ListEntries *) odr_malloc(m_odr, sizeof(*res->entries));
+    res->entries->num_entries = 0;
+    res->entries->entries = 0;
+
     if (error)
     {
-        Z_ScanResponse *res = apdu->u.scanResponse;
-        res->entries = (Z_ListEntries *) odr_malloc(m_odr, sizeof(*res->entries));
         *res->scanStatus = Z_Scan_failure;
 
-        res->entries->num_entries = 0;
-        res->entries->entries = 0;
         res->entries->num_nonsurrogateDiagnostics = 1;
         res->entries->nonsurrogateDiagnostics = (Z_DiagRec **)
             odr_malloc(m_odr, sizeof(Z_DiagRec *));
         res->entries->nonsurrogateDiagnostics[0] = 
             zget_DiagRec(m_odr, error, addinfo);
     }
+    else
+    {
+        res->entries->num_nonsurrogateDiagnostics = 0;
+        res->entries->nonsurrogateDiagnostics = 0;
+    }
     return apdu;
 }
 
-Z_ReferenceId **yp2::util::get_referenceId(Z_APDU *apdu)
+Z_GDU *mp::odr::create_HTTP_Response(mp::Session &session,
+                                      Z_HTTP_Request *hreq, int code)
+{
+    const char *response_version = "1.0";
+    bool keepalive = false;
+    if (!strcmp(hreq->version, "1.0")) 
+    {
+        const char *v = z_HTTP_header_lookup(hreq->headers, "Connection");
+        if (v && !strcmp(v, "Keep-Alive"))
+            keepalive = true;
+        else
+            session.close();
+        response_version = "1.0";
+    }
+    else
+    {
+        const char *v = z_HTTP_header_lookup(hreq->headers, "Connection");
+        if (v && !strcmp(v, "close"))
+            session.close();
+        else
+            keepalive = true;
+        response_version = "1.1";
+    }
+
+    Z_GDU *gdu = z_get_HTTP_Response(m_odr, code);
+    Z_HTTP_Response *hres = gdu->u.HTTP_Response;
+    hres->version = odr_strdup(m_odr, response_version);
+    if (keepalive)
+        z_HTTP_header_add(m_odr, &hres->headers, "Connection", "Keep-Alive");
+    
+    return gdu;
+}
+
+Z_ReferenceId **mp_util::get_referenceId(Z_APDU *apdu)
 {
     switch (apdu->which)
     {