able to add debug/lowlevel_insert.cc

debug/lowlevel_insert.cc

+#include <iostream>
+#include <vector>
+#include <functional>
+#include <unistd.h>
+#include <sys/types.h>
+#include <dirent.h>
+#include <main/Connect.hh>
+#include <main/rewrite_util.hh>
+#include <main/sql_handler.hh>
+#include <main/dml_handler.hh>
+#include <main/ddl_handler.hh>
+#include <main/CryptoHandlers.hh>
+#include <main/rewrite_main.hh>
+
+static std::string embeddedDir="/t/cryt/shadow";
+
+static Item *
+my_encrypt_item_layers(const Item &i, onion o, const OnionMeta &om,
+                    const Analysis &a, uint64_t IV) {
+    assert(!RiboldMYSQL::is_null(i));
+    const auto &enc_layers = a.getEncLayers(om);
+    assert_s(enc_layers.size() > 0, "onion must have at least one layer");
+    const Item *enc = &i;
+    Item *new_enc = NULL;
+    for (const auto &it : enc_layers) {
+        LOG(encl) << "encrypt layer "
+                  << TypeText<SECLEVEL>::toText(it->level()) << "\n";
+        new_enc = it->encrypt(*enc, IV);
+        assert(new_enc);
+        enc = new_enc;
+    }
+    assert(new_enc && new_enc != &i);
+    return new_enc;
+}
+
+static
+void
+my_encrypt_item_all_onions(const Item &i, const FieldMeta &fm,
+                        uint64_t IV, Analysis &a, std::vector<Item*> *l){
+    for (auto it : fm.orderedOnionMetas()) {
+        const onion o = it.first->getValue();
+        OnionMeta * const om = it.second;
+        if(om!=NULL)
+            l->push_back(my_encrypt_item_layers(i, o, *om, a, IV));
+        else l->push_back(NULL);
+    }
+}
+
+static
+void
+my_typical_rewrite_insert_type(const Item &i, const FieldMeta &fm,
+                            Analysis &a, std::vector<Item *> *l) {
+    const uint64_t salt = fm.getHasSalt() ? randomValue() : 0;
+    my_encrypt_item_all_onions(i, fm, salt, a, l);
+    if (fm.getHasSalt()) {
+        l->push_back(new Item_int(static_cast<ulonglong>(salt)));
+    }
+}
+
+
+
+template <typename ContainerType>
+void myRewriteInsertHelper(const Item &i, const FieldMeta &fm, Analysis &a,
+                         ContainerType *const append_list){
+    std::vector<Item *> l;
+    my_typical_rewrite_insert_type(i,fm,a,&l);
+    for (auto it : l) {
+        append_list->push_back(it);
+    }
+}
+
+static std::string getInsertResults(Analysis a,LEX* lex){
+        LEX *const new_lex = copyWithTHD(lex);
+        const std::string &table =
+            lex->select_lex.table_list.first->table_name;
+        const std::string &db_name =
+            lex->select_lex.table_list.first->db;
+        //from databasemeta to tablemeta.
+        const TableMeta &tm = a.getTableMeta(db_name, table);
+
+        //rewrite table name
+        new_lex->select_lex.table_list.first =
+            rewrite_table_list(lex->select_lex.table_list.first, a);
+
+        std::vector<FieldMeta *> fmVec;
+        std::vector<Item *> implicit_defaults;
+        
+        // No field list, use the table order.
+        assert(fmVec.empty());
+        std::vector<FieldMeta *> fmetas = tm.orderedFieldMetas();
+        fmVec.assign(fmetas.begin(), fmetas.end());
+
+        if (lex->many_values.head()) {
+            //start processing many values
+            auto it = List_iterator<List_item>(lex->many_values);
+            List<List_item> newList;
+            for (;;) {
+                List_item *const li = it++;
+                if (!li) {
+                    break;
+                }
+                List<Item> *const newList0 = new List<Item>();
+                if (li->elements != fmVec.size()) {
+                    TEST_TextMessageError(0 == li->elements
+                                         && NULL == lex->field_list.head(),
+                                          "size mismatch between fields"
+                                          " and values!");
+                } else {
+                    auto it0 = List_iterator<Item>(*li);
+                    auto fmVecIt = fmVec.begin();
+
+                    for (;;) {
+                        const Item *const i = it0++;
+                        assert(!!i == (fmVec.end() != fmVecIt));
+                        if (!i) {
+                            break;
+                        }
+                        //fetch values, and use fieldMeta to facilitate rewrite
+                        //every filed should be encrypted with onions of encryption
+                        myRewriteInsertHelper(*i, **fmVecIt, a, newList0);
+                        ++fmVecIt;
+                    }
+                    for (auto def_it : implicit_defaults) {
+                        newList0->push_back(def_it);
+                    }
+                }
+                newList.push_back(newList0);
+            }
+            new_lex->many_values = newList;
+        }
+        return lexToQuery(*new_lex);
+}
+
+
+static void testInsertHandler(std::string query){
+    std::unique_ptr<Connect> e_conn(Connect::getEmbedded(embeddedDir));
+    std::unique_ptr<SchemaInfo> schema(new SchemaInfo());
+    std::function<DBMeta *(DBMeta *const)> loadChildren =
+        [&loadChildren, &e_conn](DBMeta *const parent) {
+            auto kids = parent->fetchChildren(e_conn);
+            for (auto it : kids) {
+                loadChildren(it);
+            }
+            return parent;
+        };
+    //load all metadata and then store it in schema
+    loadChildren(schema.get()); 
+    const std::unique_ptr<AES_KEY> &TK = std::unique_ptr<AES_KEY>(getKey(std::string("113341234")));
+    //just like what we do in Rewrite::rewrite,dispatchOnLex
+    Analysis analysis(std::string("tdb"),*schema,TK,
+                        SECURITY_RATING::SENSITIVE);
+    std::unique_ptr<query_parse> p;
+    p = std::unique_ptr<query_parse>(
+                new query_parse("tdb", query));
+    LEX *const lex = p->lex();
+    std::cout<<getInsertResults(analysis,lex)<<std::endl;
+}
+
+int
+main() {
+    char *buffer;
+    if((buffer = getcwd(NULL, 0)) == NULL){
+        perror("getcwd error");
+    }
+    embeddedDir = std::string(buffer)+"/shadow";
+    const std::string master_key = "113341234";
+    ConnectionInfo ci("localhost", "root", "letmein",3306);
+    SharedProxyState *shared_ps = new SharedProxyState(ci, embeddedDir , master_key, determineSecurityRating());
+    assert(shared_ps!=NULL);
+    std::string query1 = "insert into student values(1,\"ZHAOYUN\")";
+    std::vector<std::string> querys{query1};
+    for(auto item:querys){
+        std::cout<<item<<std::endl;
+        testInsertHandler(item);
+        std::cout<<std::endl;
+    }
+    return 0;
+}