Added basic import and export

The DB can be exported to json file
Added handling of duplicate entries

qml/lib/storage.js

@@ -39,8 +39,7 @@ function getDB() {
       db.changeVersion("", "2",
         function(tx) {
           tx.executeSql("CREATE TABLE IF NOT EXISTS OTPStorage(title TEXT, secret TEXT, type TEXT DEFAULT 'TOPT', counter INTEGER DEFAULT 0, fav INTEGER DEFAULT 0);");
-        }
+      });
-      );
     } else if (db.version == "1.0") {
       // Upgrade DB Schema to Version 2
       db.changeVersion("1.0", "2",
@@ -48,8 +47,7 @@ function getDB() {
           tx.executeSql("ALTER TABLE OTPStorage ADD COLUMN type TEXT DEFAULT 'TOTP';");
           tx.executeSql("ALTER TABLE OTPStorage ADD COLUMN counter INTEGER DEFAULT 0;");
           tx.executeSql("ALTER TABLE OTPStorage ADD COLUMN fav INTEGER DEFAULT 0;");
-        }
+      });
-      );
     }
   } catch (e) {
     // DB Failed to open
@@ -70,8 +68,57 @@ function getOTP() {
         mainPage.appendOTP(res.rows.item(i).title, res.rows.item(i).secret, res.rows.item(i).type, res.rows.item(i).counter, res.rows.item(i).fav);
         if (res.rows.item(i).fav) mainPage.setCoverOTP(res.rows.item(i).title, res.rows.item(i).secret, res.rows.item(i).type);
       }
+  });
+}
+
+// Get all OTP Values and put them into a JSON-Object
+function db2json(password) {
+  var db = getDB();
+  var otpList = [];
+
+  db.transaction(
+    function(tx) {
+      var res = tx.executeSql("select * from OTPStorage;");
+      for (var i=0; i < res.rows.length; i++) {
+        otpList.push({
+          "title": res.rows.item(i).title,
+          "secret": res.rows.item(i).secret,
+          "type": res.rows.item(i).type,
+          "counter": res.rows.item(i).counter,
+      });
+    }
+  });
+
+  if (otpList.length > 0) {
+    return(JSON.stringify({"app": "sailotp", "version": 1, "otplist": otpList}));
+  } else {
+    return("")
+  }
+}
+
+// Read Values from JSON and put them into the DB
+function json2db(jsonString, password) {
+  var json = JSON.parse(jsonString);
+
+  if (json.version != "1" && json.app != "sailotp" ) {
+    console.log("Unrecognized JSON format");
+    return(false);
+  } else {
+    var otpList = [];
+    otpList = json.otplist;
+    if (otpList.length > 0) {
+      while(otpList.length > 0) {
+        var otpItem = otpList.shift();
+        if (otpItem.title != "" & otpItem.secret.length >= 16) {
+          addOTP(otpItem.title, otpItem.secret, otpItem.type, otpItem.counter);
+        }
+      }
+      parentPage.refreshOTPList();
+    } else {
+      console.log("File contains no Items");
+      return(false);
+    }
   }
-  )
 }
 
 // Add a new OTP
@@ -80,9 +127,26 @@ function addOTP(title, secret, type, counter) {
 
   db.transaction(
     function(tx) {
+      if (checkOTP(title, secret)) {
+        console.log("Token " + title + " is already in DB");
+      } else {
         tx.executeSql("INSERT INTO OTPStorage VALUES(?, ?, ?, ?, ?);", [title, secret, type, counter, 0]);
+        console.log("Token " + title + " added.");
       }
-  )
+  });
+}
+
+// Check if an OTP Token already exists in the DB
+function checkOTP(title, secret) {
+  var db = getDB();
+  var res
+
+  db.transaction(
+    function(tx) {
+      res = tx.executeSql("select title FROM OTPStorage WHERE title=? and secret=?;", [title, secret]);
+  });
+
+  return res.rows.length > 0 ? true : false
 }
 
 // Remove an existing OTP
@@ -92,10 +156,10 @@ function removeOTP(title, secret) {
   db.transaction(
     function(tx) {
       tx.executeSql("DELETE FROM OTPStorage WHERE title=? and secret=?;", [title, secret]);
-    }
+  });
-  )
 }
 
+// Set OTP to favourite
 function setFav(title, secret) {
   var db = getDB();
 
@@ -103,18 +167,17 @@ function setFav(title, secret) {
     function(tx) {
       tx.executeSql("UPDATE OTPStorage set fav = 0");
       tx.executeSql("UPDATE OTPStorage set fav = 1 WHERE title=? and secret=?;", [title, secret]);
-    }
+  });
-  )
 }
 
+// Reset favourite Flag for OTP
 function resetFav(title, secret) {
   var db = getDB();
 
   db.transaction(
     function(tx) {
       tx.executeSql("UPDATE OTPStorage set fav = 0");
-    }
+  });
-  )
 }
 
 // Change an existing OTP
@@ -123,12 +186,15 @@ function changeOTP(title, secret, type, counter, oldtitle, oldsecret) {
 
   db.transaction(
     function(tx) {
+      if (checkOTP(title, secret)) {
+        console.log("Token " + title + " is already in DB");
+      } else {
         tx.executeSql("UPDATE OTPStorage SET title=?, secret=?, type=?, counter=? WHERE title=? and secret=?;", [title, secret, type, counter, oldtitle, oldsecret]);
+        console.log("Token " + title + " modified.");
       }
-  )
+  });
 }
 
-
 // Get the counter for a HOTP value, incerment the counter on request
 function getCounter(title, secret, increment) {
   var db = getDB();
@@ -139,8 +205,7 @@ function getCounter(title, secret, increment) {
     function(tx) {
       res = tx.executeSql("SELECT counter FROM OTPStorage where title=? and secret=?;", [title, secret]);
       if (increment) tx.executeSql("UPDATE OTPStorage set counter=counter+1 WHERE title=? and secret=?;", [title, secret]);
-    }
+  });
-  )
 
   return res.rows.item(0).counter;
 }

qml/pages/ExportPage.qml

@@ -37,6 +37,9 @@ import "../lib/storage.js" as DB // Import the storage library for Config-Access
 Dialog {
   id: exportPage
 
+  // We get the Object of the parent page on call to refresh it after adding a new Entry
+  property QtObject parentPage: null
+
   property string mode: "export"
 
   // FileIO Object for reading / writing files
@@ -90,9 +93,16 @@ Dialog {
   canAccept: fileName.text.length > 0 && filePassword.text.length > 0 ? true : false
 
   // Do the DB-Export / Import
+  // TODO: Error handling and enctyption
   onDone: {
     if (result == DialogResult.Accepted) {
-     // TODO
+      if (mode == "export") {
+        console.log("Exporting to " + fileName.text, filePassword.text);
+        exportFile.write(DB.db2json());
+      } else if(mode == "import") {
+        console.log("Importing ftom " + fileName.text, filePassword.text);
+        DB.json2db(exportFile.read(), filePassword)
+      }
     }
   }
 }

qml/pages/MainView.qml

@@ -113,7 +113,7 @@ Page {
       }
       MenuItem {
         text: "Export / Import DB"
-        onClicked: pageStack.push(Qt.resolvedUrl("ExportPage.qml"))
+        onClicked: pageStack.push(Qt.resolvedUrl("ExportPage.qml"), {parentPage: mainPage})
       }
       MenuItem {
         text: "Add OTP"