Do not double print sql error

[securemail.git] / db.py

diff --git a/db.py b/db.py
index e904fb190c0096bf440c8fa639c21adeb14d9e8c..e5953968d25989b3dd56fb13e528f6f40b5567cb 100644 (file)
--- a/db.py
+++ b/db.py
@@ -17,7 +17,49 @@
 # You should have received a copy of the GNU General Public License
 # along with SecureMail.  If not, see <https://www.gnu.org/licenses/>.
 
-from config import DBTYPE, DBHOST, DBPORT, DBUID, DBPWD, DBNAME
+# sqlite
+sqlite_sql = """create table account (
+id int auto_increment,
+token char(128) unique not null,
+cipher text not null,
+primary key (id))"""
+
+# mysql
+mysql_sql = """create table account (
+id int auto_increment,
+token char(128) unique not null,
+cipher text not null,
+primary key (id))"""
+
+# postgresql
+postgresql_sql = """create table account (
+id serial,
+token char(128) unique not null,
+cipher bytea not null,
+primary key (id))"""
+
+import base64
+from config import DBTYPE, DBNAME
+try:
+    from config import DBUID
+except ImportError:
+    DBUID = 'backend'
+try:
+    from config import DBPWD
+except ImportError:
+    DBPWD = 'clV77B2ZJQxr'
+try:
+    from config import DBHOST
+except ImportError:
+    DBHOST = 'localhost'
+try:
+    from config import DBPORT
+except ImportError:
+    if DBTYPE == 'mysql':
+        DBPORT = 3306
+    elif DBTYPE == 'postgresql':
+        DBPORT = 5432
+from cryptonize import Cryptonize
 
 class Singleton:
     def __init__(self, klass):
@@ -36,11 +78,16 @@ class DB:
     def get_connection(self):
         if self.conn is None:
             if DBTYPE == 'mysql':
-                import mysql.connector
-                self.conn = mysql.connector.connect(host=DBHOST, port=DBPORT, user=DBUID, password=DBPWD, database=DBNAME)
+                import MySQLdb
+                self.conn = MySQLdb.connect(host=DBHOST, port=DBPORT, user=DBUID, password=DBPWD, database=DBNAME)
             elif DBTYPE == 'postgresql':
                 import psycopg2
                 self.conn = psycopg2.connect(host=DBHOST, port=DBPORT, user=DBUID, password=DBPWD, dbname=DBNAME)
+            elif DBTYPE == 'sqlite':
+                import apsw
+                self.conn = apsw.Connection('./{0}.db'.format(DBNAME))
+            else:
+                raise ValueError('{0}: Unsupported database'.format(DBTYPE))
         return self.conn
         
     def __del__(self):
@@ -52,20 +99,104 @@ class DBInterface:
     def load_user(key):
         conn = DB().get_connection()
         cursor = conn.cursor()
-        cursor.execute("select a.cipher from account a where id = '{0}'".format(key))
+        cursor.execute("select a.cipher from account a where token = '{0}'".format(key))
         row = cursor.fetchone()
         if row is None:
             obj = None
         else:
-            obj = row[0].tobytes()
+            c = Cryptonize()
+            msg = base64.b64decode(row[0])
+            obj = c.create_EncryptedMessage(msg)
         cursor.close()
         
         return obj
         
     @staticmethod
     def store_user(key, cipher):
+        if DBTYPE == 'mysql':
+            from MySQLdb import Error as DBError
+        elif DBTYPE == 'postgresql':
+            from psycopg2 import Error as DBError
+        elif DBTYPE == 'sqlite':
+            from apsw import Error as DBError
         conn = DB().get_connection()
         cursor = conn.cursor()
-        cursor.execute("insert into account(id, cipher) values(%s, %s)", (key, cipher))
-        conn.commit()
-        cursor.close()
+        raw = base64.b64encode(cipher)
+        try:
+            if DBTYPE != 'sqlite':
+                cursor.execute("insert into account(token, cipher) values(%s, %s)", (key, raw))
+                conn.commit()
+            else:
+                cursor.execute('begin')
+                cursor.execute("insert into account(token, cipher) values(?, ?)", (key, raw))
+                cursor.execute('commit')
+        except DBError as e:
+            print (e)
+            if DBTYPE != 'sqlite':
+                conn.rollback()
+            else:
+                cursor.execute('rollback')
+            raise e
+        finally:
+            cursor.close()
+
+    @staticmethod
+    def create_database():
+        if DBTYPE == 'mysql':
+            from MySQLdb import Error as DBError
+        elif DBTYPE == 'postgresql':
+            from psycopg2 import Error as DBError
+        elif DBTYPE == 'sqlite':
+            from apsw import Error as DBError
+        conn = DB().get_connection()
+        cursor = conn.cursor()
+        try:
+            if DBTYPE != 'sqlite':
+                if DBTYPE == 'mysql':
+                    sql = mysql_sql
+                elif DBTYPE == 'postgresql':
+                    sql = postgresql_sql
+                cursor.execute(sql)
+                conn.commit()
+            else:
+                cursor.execute('begin')
+                cursor.execute(sqlite_sql)
+                cursor.execute('commit')
+        except DBError as e:
+            if DBTYPE != 'sqlite':
+                conn.rollback()
+            else:
+                cursor.execute('rollback')
+            raise e
+        finally:
+            cursor.close()
+
+def main():
+    from optparse import OptionParser
+    
+    usage = "usage: %prog [options] arg"
+    parser = OptionParser(usage)
+    parser.add_option("-c", "--create", action="store_true", dest="create",
+                      help="Create tables in database using config.py", default=False)
+    parser.add_option("-v", "--verbose", action="store_true", dest="verbose",
+                      help="Run in verbose mode", default=False)
+    (options, args) = parser.parse_args()
+    
+    if  options.create:
+        try:
+            if options.verbose:
+                print("Creating empty database")
+                print("Database Engine: {0}".format(DBTYPE))
+                if DBTYPE != 'sqlite':
+                    print("Database Host: {0}".format(DBHOST))
+                    print("Database Port: {0}".format(DBPORT))
+                else:
+                    print("Database File: ./{0}.db".format(DBNAME))
+            DBInterface.create_database()
+            print("Database created")
+        except Exception as e:
+            print("Creating database failed!")
+            print(e)
+        
+if __name__ == '__main__':
+    main()