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/*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "common/setup_before.h"
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#ifdef WITH_SQL
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#include <stdio.h>
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#ifdef STDC_HEADERS
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# include <stdlib.h>
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#else
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# ifdef HAVE_MALLOC_H
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# include <malloc.h>
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# endif
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#endif
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#ifdef HAVE_STRING_H
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# include <string.h>
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#else
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# ifdef HAVE_STRINGS_H
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# include <strings.h>
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# endif
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#endif
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#define SQL_DBCREATOR_INTERNAL_ACCESS
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#include "sql_dbcreator.h"
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#undef SQL_DBCREATOR_INTERNAL_ACCESS
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#include "storage_sql.h"
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#include "common/eventlog.h"
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#include "common/util.h"
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#include "compat/strdup.h"
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#include "common/list.h"
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#include "common/xalloc.h"
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#include "prefs.h"
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#include "common/setup_after.h"
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t_elem * curr_table = NULL;
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t_elem * curr_column = NULL;
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t_db_layout * db_layout;
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t_column * create_column(char * name, char * value)
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{
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t_column * column;
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if (!(name))
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{
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eventlog(eventlog_level_error,__FUNCTION__,"got NULL column name");
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return NULL;
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}
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if (!(value))
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{
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eventlog(eventlog_level_error,__FUNCTION__,"got NULL column value");
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return NULL;
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}
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column = xmalloc(sizeof(t_column));
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column->name = xstrdup(name);
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column->value = xstrdup(value);
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return column;
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};
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void dispose_column(t_column * column)
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{
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if (column)
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{
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if (column->name) xfree((void *)column->name);
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if (column->value) xfree((void *)column->value);
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xfree((void *)column);
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}
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}
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t_table * create_table(char * name)
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{
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t_table * table;
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if (!(name))
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{
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eventlog(eventlog_level_error,__FUNCTION__,"got NULL table name");
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return NULL;
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}
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table = xmalloc(sizeof(t_table));
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table->name = xstrdup(name);
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table->columns = list_create();
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return table;
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}
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void dispose_table(t_table * table)
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{
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t_elem * curr;
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t_column * column;
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if (table)
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{
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if (table->name) xfree((void *)table->name);
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// free list
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if (table->columns)
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{
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LIST_TRAVERSE(table->columns,curr)
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{
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if (!(column = elem_get_data(curr)))
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{
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eventlog(eventlog_level_error,__FUNCTION__,"found NULL entry in list");
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continue;
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}
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dispose_column(column);
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list_remove_elem(table->columns,&curr);
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}
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list_destroy(table->columns);
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}
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xfree((void *)table);
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}
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}
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void table_add_column(t_table * table, t_column * column)
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{
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if ((table) && (column))
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{
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list_append_data(table->columns,column);
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}
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}
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t_db_layout * create_db_layout()
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{
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t_db_layout * db_layout;
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db_layout = xmalloc(sizeof(t_db_layout));
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db_layout->tables = list_create();
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return db_layout;
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}
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void dispose_db_layout(t_db_layout * db_layout)
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{
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t_elem * curr;
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t_table * table;
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if (db_layout)
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{
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if (db_layout->tables)
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{
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LIST_TRAVERSE(db_layout->tables,curr)
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{
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if (!(table = elem_get_data(curr)))
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{
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eventlog(eventlog_level_error,__FUNCTION__,"found NULL entry in list");
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continue;
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}
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dispose_table(table);
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list_remove_elem(db_layout->tables,&curr);
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}
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list_destroy(db_layout->tables);
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}
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xfree((void *)db_layout);
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}
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}
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void db_layout_add_table(t_db_layout * db_layout, t_table * table)
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{
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if ((db_layout) && (table))
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{
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list_append_data(db_layout->tables,table);
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}
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}
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t_table * db_layout_get_first_table(t_db_layout * db_layout)
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{
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t_table * table;
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curr_column = NULL;
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if (!(db_layout))
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{
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eventlog(eventlog_level_error,__FUNCTION__,"got NULL db_layout");
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return NULL;
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}
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if (!(db_layout->tables))
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{
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eventlog(eventlog_level_error,__FUNCTION__,"found NULL db_layout->tables");
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return NULL;
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}
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if (!(curr_table = list_get_first(db_layout->tables)))
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{
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eventlog(eventlog_level_error,__FUNCTION__,"db_layout has no tables");
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return NULL;
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}
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if (!(table = elem_get_data(curr_table)))
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{
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eventlog(eventlog_level_error,__FUNCTION__,"got NULL elem in list");
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return NULL;
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}
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return table;
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}
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t_table * db_layout_get_next_table(t_db_layout * db_layout)
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{
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t_table * table;
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curr_column = NULL;
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if (!(curr_table))
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{
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eventlog(eventlog_level_error,__FUNCTION__,"got NULL curr_table");
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return NULL;
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}
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if (!(curr_table = elem_get_next(db_layout->tables, curr_table))) return NULL;
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if (!(table = elem_get_data(curr_table)))
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{
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eventlog(eventlog_level_error,__FUNCTION__,"got NULL elem in list");
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return NULL;
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}
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return table;
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}
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t_column * table_get_first_column(t_table * table)
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{
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t_column * column;
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if (!(table))
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{
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eventlog(eventlog_level_error,__FUNCTION__,"got NULL table");
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return NULL;
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}
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if (!(table->columns))
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{
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eventlog(eventlog_level_error,__FUNCTION__,"got NULL table->columns");
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return NULL;
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}
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if (!(curr_column = list_get_first(table->columns)))
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{
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eventlog(eventlog_level_error,__FUNCTION__,"table has no columns");
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return NULL;
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}
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if (!(column = elem_get_data(curr_column)))
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{
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eventlog(eventlog_level_error,__FUNCTION__,"got NULL elem in list");
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return NULL;
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}
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return column;
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}
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t_column * table_get_next_column(t_table * table)
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{
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t_column * column;
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if (!(curr_column))
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{
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eventlog(eventlog_level_error,__FUNCTION__,"got NULL curr_column");
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return NULL;
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}
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if (!(curr_column = elem_get_next(table->columns, curr_column))) return NULL;
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if (!(column = elem_get_data(curr_column)))
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{
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eventlog(eventlog_level_error,__FUNCTION__,"got NULL elem in list");
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return NULL;
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}
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return column;
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}
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int load_db_layout(char const * filename)
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{
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FILE * fp;
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int lineno;
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char * line = NULL;
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char * tmp = NULL;
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char * table = NULL;
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char * column = NULL;
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char * value = NULL;
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t_table * _table = NULL;
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t_column * _column = NULL;
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if (!(filename))
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{
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eventlog(eventlog_level_error,__FUNCTION__,"got NULL filename");
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return -1;
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}
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if (!(fp = fopen(filename,"r")))
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{
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eventlog(eventlog_level_error,__FUNCTION__,"can't open sql_DB_layout file");
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return -1;
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}
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if (!(db_layout = create_db_layout()))
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{
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eventlog(eventlog_level_error,__FUNCTION__,"failed to create db_layout");
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fclose(fp);
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return -1;
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}
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for (lineno=1; (line = file_get_line(fp)) ; lineno++)
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{
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switch (line[0])
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{
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case '[':
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table = &line[1];
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if (!(tmp = strchr(table,']')))
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{
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eventlog(eventlog_level_error,__FUNCTION__,"missing ']' in line %i",lineno);
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continue;
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}
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tmp[0]='\0';
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if (_table) db_layout_add_table(db_layout,_table);
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_table = create_table(table);
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break;
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case '"':
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if (!(_table))
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{
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eventlog(eventlog_level_error,__FUNCTION__,"found a column without previous table in line %i",lineno);
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continue;
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}
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column = &line[1];
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if (!(tmp = strchr(column,'"')))
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{
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eventlog(eventlog_level_error,__FUNCTION__,"missing '\"' at the end of column definitioni in line %i",lineno);
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continue;
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}
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tmp[0]='\0';
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tmp++;
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if (!(tmp = strchr(tmp,'"')))
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{
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eventlog(eventlog_level_error,__FUNCTION__,"missing default value in line %i",lineno);
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continue;
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}
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value = ++tmp;
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if (!(tmp = strchr(value,'"')))
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{
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eventlog(eventlog_level_error,__FUNCTION__,"missing '\"' at the end of default value in line %i",lineno);
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continue;
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}
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tmp[0]='\0';
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_column = create_column(column,value);
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table_add_column(_table,_column);
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_column = NULL;
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break;
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case '#':
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break;
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default:
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eventlog(eventlog_level_error,__FUNCTION__,"illegal starting symbol at line %i",lineno);
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}
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}
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if (_table) db_layout_add_table(db_layout,_table);
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file_get_line(NULL); // clear file_get_line buffer
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fclose(fp);
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return 0;
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}
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int sql_dbcreator(t_sql_engine * sql)
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{
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t_table * table;
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t_column * column;
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char _column[1024];
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char query[1024];
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load_db_layout(prefs_get_DBlayoutfile());
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eventlog(eventlog_level_info, __FUNCTION__,"Creating missing tables and columns (if any)");
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for (table = db_layout_get_first_table(db_layout);table;table = db_layout_get_next_table(db_layout))
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{
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column = table_get_first_column(table);
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sprintf(query,"CREATE TABLE %s (%s default %s)",table->name,column->name,column->value);
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//create table if missing
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if (!(sql->query(query)))
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{
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eventlog(eventlog_level_info,__FUNCTION__,"added missing table %s to DB",table->name);
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eventlog(eventlog_level_info,__FUNCTION__,"added missing column %s to table %s",column->name,table->name);
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}
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for (;column;column = table_get_next_column(table))
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{
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sprintf(query,"ALTER TABLE %s ADD %s",table->name,column->name);
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// add missing columns
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if (!(sql->query(query)))
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{
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eventlog(eventlog_level_info,__FUNCTION__,"added missing column %s to table %s",column->name,table->name);
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sscanf(column->name,"%s",_column); //get column name without format infos
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sprintf(query,"ALTER TABLE %s ALTER %s SET DEFAULT %s",table->name,_column,column->value);
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sql->query(query);
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}
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}
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column = table_get_first_column(table);
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sscanf(column->name,"%s",_column); //get column name without format infos
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sprintf(query,"INSERT INTO %s (%s) VALUES (%s)",table->name,_column,column->value);
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if (!(sql->query(query)))
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{
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eventlog(eventlog_level_info,__FUNCTION__,"added missing default account to table %s",table->name);
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}
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}
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dispose_db_layout(db_layout);
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eventlog(eventlog_level_info,__FUNCTION__,"finished adding missing tables and columns");
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return 0;
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}
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#endif /* WITH_SQL */
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