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[users] Consume error information from libpwquality

Browse Source 
Previously, the auxerror information was never stored, and
the messages were all un-numbered or un-explained.
Now, consume that information and store it when check()
is called, ready to be used when (possibly much later,
or after a translation change) explanation() is called.
main
Adriaan de Groot 6 years ago
parent 43565027f5
commit b4c3236e4a
1 changed files with 94 additions and 60 deletions
Show Stats Download Patch File Download Diff File

154
src/modules/users/CheckPWQuality.cpp
Unescape Escape View File

@ -112,24 +112,73 @@ public:
/// Sets an option via the configuration string @p v, <key>=<value> style.
int set( const QString& v ) { return pwquality_set_option( m_settings, v.toUtf8().constData() ); }
/// Checks the given password @p pwd against the current configuration
/** @brief Checks the given password @p pwd against the current configuration
*
* Resets m_errorString and m_errorCount and then sets them appropriately
* so that explanation() can be called afterwards. Sets m_rv as well.
*/
int check( const QString& pwd )
{
void* auxerror = nullptr;
int r = pwquality_check( m_settings, pwd.toUtf8().constData(), nullptr, nullptr, &auxerror );
m_rv = r;
return r;
m_rv = pwquality_check( m_settings, pwd.toUtf8().constData(), nullptr, nullptr, &auxerror );
// Positive return values could be ignored; some negative ones
// place extra information in auxerror, which is a void* and
// which needs interpretation to long- or string-values.
m_errorCount = 0;
m_errorString = QString();
switch ( m_rv )
{
case PWQ_ERROR_CRACKLIB_CHECK:
if ( auxerror )
{
/* Here the string comes from cracklib, don't free? */
m_errorString = mungeString( auxerror );
}
break;
case PWQ_ERROR_MEM_ALLOC:
case PWQ_ERROR_UNKNOWN_SETTING:
case PWQ_ERROR_INTEGER:
case PWQ_ERROR_NON_INT_SETTING:
case PWQ_ERROR_NON_STR_SETTING:
if ( auxerror )
{
m_errorString = mungeString( auxerror );
free( auxerror );
}
break;
case PWQ_ERROR_MIN_DIGITS:
case PWQ_ERROR_MIN_UPPERS:
case PWQ_ERROR_MIN_LOWERS:
case PWQ_ERROR_MIN_OTHERS:
case PWQ_ERROR_MIN_LENGTH:
case PWQ_ERROR_MIN_CLASSES:
case PWQ_ERROR_MAX_CONSECUTIVE:
case PWQ_ERROR_MAX_CLASS_REPEAT:
case PWQ_ERROR_MAX_SEQUENCE:
if ( auxerror )
{
m_errorCount = mungeLong( auxerror );
}
break;
default:
break;
}
return m_rv;
}
/* This is roughly the same as the function pwquality_strerror,
/** @brief Explain the results of the last call to check()
*
* This is roughly the same as the function pwquality_strerror,
* only with QStrings instead, and using the Qt translation scheme.
* It is used under the terms of the GNU GPL v3 or later, as
* allowed by the libpwquality license (LICENSES/GPLv2+-libpwquality)
*/
QString explanation()
{
void* auxerror = nullptr;
if ( m_rv >= arbitrary_minimum_strength )
{
return QString();
@ -142,12 +191,10 @@ public:
switch ( m_rv )
{
case PWQ_ERROR_MEM_ALLOC:
if ( auxerror )
if ( !m_errorString.isEmpty() )
{
QString s = QCoreApplication::translate( "PWQ", "Memory allocation error when setting '%1'" )
.arg( mungeString( auxerror ) );
free( auxerror );
return s;
return QCoreApplication::translate( "PWQ", "Memory allocation error when setting '%1'" )
.arg( m_errorString );
}
return QCoreApplication::translate( "PWQ", "Memory allocation error" );
case PWQ_ERROR_SAME_PASSWORD:
@ -166,79 +213,75 @@ public:
case PWQ_ERROR_BAD_WORDS:
return QCoreApplication::translate( "PWQ", "The password contains forbidden words in some form" );
case PWQ_ERROR_MIN_DIGITS:
if ( auxerror )
if ( m_errorCount )
{
return QCoreApplication::translate(
"PWQ", "The password contains fewer than %n digits", nullptr, mungeLong( auxerror ) );
"PWQ", "The password contains fewer than %n digits", nullptr, m_errorCount );
}
return QCoreApplication::translate( "PWQ", "The password contains too few digits" );
case PWQ_ERROR_MIN_UPPERS:
if ( auxerror )
if ( m_errorCount )
{
return QCoreApplication::translate(
"PWQ", "The password contains fewer than %n uppercase letters", nullptr, mungeLong( auxerror ) );
"PWQ", "The password contains fewer than %n uppercase letters", nullptr, m_errorCount );
}
return QCoreApplication::translate( "PWQ", "The password contains too few uppercase letters" );
case PWQ_ERROR_MIN_LOWERS:
if ( auxerror )
if ( m_errorCount )
{
return QCoreApplication::translate(
"PWQ", "The password contains fewer than %n lowercase letters", nullptr, mungeLong( auxerror ) );
"PWQ", "The password contains fewer than %n lowercase letters", nullptr, m_errorCount );
}
return QCoreApplication::translate( "PWQ", "The password contains too few lowercase letters" );
case PWQ_ERROR_MIN_OTHERS:
if ( auxerror )
if ( m_errorCount )
{
return QCoreApplication::translate( "PWQ",
"The password contains fewer than %n non-alphanumeric characters",
nullptr,
mungeLong( auxerror ) );
return QCoreApplication::translate(
"PWQ", "The password contains fewer than %n non-alphanumeric characters", nullptr, m_errorCount );
}
return QCoreApplication::translate( "PWQ", "The password contains too few non-alphanumeric characters" );
case PWQ_ERROR_MIN_LENGTH:
if ( auxerror )
if ( m_errorCount )
{
return QCoreApplication::translate(
"PWQ", "The password is shorter than %n characters", nullptr, mungeLong( auxerror ) );
"PWQ", "The password is shorter than %n characters", nullptr, m_errorCount );
}
return QCoreApplication::translate( "PWQ", "The password is too short" );
case PWQ_ERROR_ROTATED:
return QCoreApplication::translate( "PWQ", "The password is a rotated version of the previous one" );
case PWQ_ERROR_MIN_CLASSES:
if ( auxerror )
if ( m_errorCount )
{
return QCoreApplication::translate(
"PWQ", "The password contains fewer than %n character classes", nullptr, mungeLong( auxerror ) );
"PWQ", "The password contains fewer than %n character classes", nullptr, m_errorCount );
}
return QCoreApplication::translate( "PWQ", "The password does not contain enough character classes" );
case PWQ_ERROR_MAX_CONSECUTIVE:
if ( auxerror )
if ( m_errorCount )
{
return QCoreApplication::translate( "PWQ",
"The password contains more than %n same characters consecutively",
nullptr,
mungeLong( auxerror ) );
return QCoreApplication::translate(
"PWQ", "The password contains more than %n same characters consecutively", nullptr, m_errorCount );
}
return QCoreApplication::translate( "PWQ", "The password contains too many same characters consecutively" );
case PWQ_ERROR_MAX_CLASS_REPEAT:
if ( auxerror )
if ( m_errorCount )
{
return QCoreApplication::translate(
"PWQ",
"The password contains more than %n characters of the same class consecutively",
nullptr,
mungeLong( auxerror ) );
m_errorCount );
}
return QCoreApplication::translate(
"PWQ", "The password contains too many characters of the same class consecutively" );
case PWQ_ERROR_MAX_SEQUENCE:
if ( auxerror )
if ( m_errorCount )
{
return QCoreApplication::translate(
"PWQ",
"The password contains monotonic sequence longer than %n characters",
nullptr,
mungeLong( auxerror ) );
m_errorCount );
}
return QCoreApplication::translate( "PWQ",
"The password contains too long of a monotonic character sequence" );
@ -250,46 +293,34 @@ public:
return QCoreApplication::translate( "PWQ",
"Password generation failed - required entropy too low for settings" );
case PWQ_ERROR_CRACKLIB_CHECK:
if ( auxerror )
if ( !m_errorString.isEmpty() )
{
/* Here the string comes from cracklib, don't free? */
return QCoreApplication::translate( "PWQ", "The password fails the dictionary check - %1" )
.arg( mungeString( auxerror ) );
.arg( m_errorString );
}
return QCoreApplication::translate( "PWQ", "The password fails the dictionary check" );
case PWQ_ERROR_UNKNOWN_SETTING:
if ( auxerror )
if ( !m_errorString.isEmpty() )
{
QString s = QCoreApplication::translate( "PWQ", "Unknown setting - %1" ).arg( mungeString( auxerror ) );
free( auxerror );
return s;
return QCoreApplication::translate( "PWQ", "Unknown setting - %1" ).arg( m_errorString );
}
return QCoreApplication::translate( "PWQ", "Unknown setting" );
case PWQ_ERROR_INTEGER:
if ( auxerror )
if ( !m_errorString.isEmpty() )
{
QString s = QCoreApplication::translate( "PWQ", "Bad integer value of setting - %1" )
.arg( mungeString( auxerror ) );
free( auxerror );
return s;
return QCoreApplication::translate( "PWQ", "Bad integer value of setting - %1" ).arg( m_errorString );
}
return QCoreApplication::translate( "PWQ", "Bad integer value" );
case PWQ_ERROR_NON_INT_SETTING:
if ( auxerror )
if ( !m_errorString.isEmpty() )
{
QString s = QCoreApplication::translate( "PWQ", "Setting %1 is not of integer type" )
.arg( mungeString( auxerror ) );
free( auxerror );
return s;
return QCoreApplication::translate( "PWQ", "Setting %1 is not of integer type" ).arg( m_errorString );
}
return QCoreApplication::translate( "PWQ", "Setting is not of integer type" );
case PWQ_ERROR_NON_STR_SETTING:
if ( auxerror )
if ( !m_errorString.isEmpty() )
{
QString s = QCoreApplication::translate( "PWQ", "Setting %1 is not of string type" )
.arg( mungeString( auxerror ) );
free( auxerror );
return s;
return QCoreApplication::translate( "PWQ", "Setting %1 is not of string type" ).arg( m_errorString );
}
return QCoreApplication::translate( "PWQ", "Setting is not of string type" );
case PWQ_ERROR_CFGFILE_OPEN:
@ -304,8 +335,11 @@ public:
}
private:
pwquality_settings_t* m_settings;
int m_rv;
QString m_errorString; ///< Textual error from last call to check()
int m_errorCount = 0; ///< Count (used in %n) error from last call to check()
int m_rv = 0; ///< Return value from libpwquality
pwquality_settings_t* m_settings = nullptr;
};
DEFINE_CHECK_FUNC( libpwquality )

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