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Add automatic crypted databases open via dotenvs (#1404)

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* Rename confusing variables

* Fix some project warnings

* Fix code style

* Add constant for the default page size

* Move KeyFormats enum to CipherSettings

* Fix code style

* Fix memory leak

* Stop relying on CipherDialog for encryption settings management

* Fix code style

* Add .env format for QSettings

* Add automatic crypted databases open via dotenvs

This adds support for `.env` files next to the crypted databases that
are to be opened that contains the needed cipher settings.

The only required one is the plain-text password as a value for the key
with the name of the database like this:

    myCryptedDatabase.sqlite = MyPassword

This way, databases with a different extension are supported too:

    myCryptedDatabase.db = MyPassword

You can also specify a custom page size adding a different line
(anywhere in the file) like this:

    myCryptedDatabase.db_pageSize = 2048

If not specified, `1024` is used.

You can also specify the format of the specified key using the
associated integer id:

    anotherCryptedDatabase.sqlite = 0xCAFEBABE
    anotherCryptedDatabase.sqlite_keyFormat = 1

where `1` means a Raw key. If not specified, `0` is used, which means a
simple text Passphrase.

Dotenv files (`.env`) are already used on other platforms and by
different tools to manage environment variables, and it's recommended
to be ignored from version control systems, so they won't leak.

* Add new files to CMakeLists

* Move DotenvFormat include to the implementation

* Fix build error

* Remove superfluous method

(related to ac51c23)

* Remove superfluous checks

* Fix memory leaks

(introduced by 94bbb46)

* Fix code style

* Make dotenv related variable and comment clearer

* Remove duplicated code

* Remove unused forward declaration

(introduced by e5a0293)
This commit is contained in:
Iulian Onofrei
2018-07-10 21:46:17 +03:00
committed by Martin Kleusberg
parent c861f1b9d9
commit 3cdc65a63f
13 changed files with 267 additions and 76 deletions
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29
src/CipherDialog.cpp
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@@ -49,34 +49,33 @@ CipherDialog::~CipherDialog()
delete ui;
}
CipherDialog::KeyFormats CipherDialog::keyFormat() const
CipherSettings CipherDialog::getCipherSettings() const
{
return static_cast<CipherDialog::KeyFormats>(ui->comboKeyFormat->currentIndex());
}
CipherSettings::KeyFormats keyFormat = CipherSettings::getKeyFormat(ui->comboKeyFormat->currentIndex());
QString password = ui->editPassword->text();
int pageSize = ui->comboPageSize->itemData(ui->comboPageSize->currentIndex()).toInt();
QString CipherDialog::password() const
{
if(keyFormat() == KeyFormats::Passphrase)
return QString("'%1'").arg(ui->editPassword->text().replace("'", "''"));
else
return QString("\"x'%1'\"").arg(ui->editPassword->text().mid(2)); // Remove the '0x' part at the beginning
}
CipherSettings cipherSettings;
int CipherDialog::pageSize() const
{
return ui->comboPageSize->itemData(ui->comboPageSize->currentIndex()).toInt();
cipherSettings.setKeyFormat(keyFormat);
cipherSettings.setPassword(password);
cipherSettings.setPageSize(pageSize);
return cipherSettings;
}
void CipherDialog::checkInputFields()
{
if(sender() == ui->comboKeyFormat)
{
if(keyFormat() == KeyFormats::Passphrase)
CipherSettings::KeyFormats keyFormat = CipherSettings::getKeyFormat(ui->comboKeyFormat->currentIndex());
if(keyFormat == CipherSettings::KeyFormats::Passphrase)
{
ui->editPassword->setValidator(nullptr);
ui->editPassword2->setValidator(nullptr);
ui->editPassword->setPlaceholderText("");
} else if(keyFormat() == KeyFormats::RawKey) {
} else if(keyFormat == CipherSettings::KeyFormats::RawKey) {
ui->editPassword->setValidator(rawKeyValidator);
ui->editPassword2->setValidator(rawKeyValidator);
ui->editPassword->setPlaceholderText("0x...");