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221 lines
7.0 KiB
221 lines
7.0 KiB
/*
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kopetepassword.h - Kopete Password
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Copyright (c) 2004 by Richard Smith <kde@metafoo.co.uk>
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Kopete (c) 2002-2004 by the Kopete developers <kopete-devel@kde.org>
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*************************************************************************
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* *
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* This library is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU Lesser General Public *
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* License as published by the Free Software Foundation; either *
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* version 2 of the License, or (at your option) any later version. *
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* *
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*************************************************************************
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*/
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#ifndef KOPETEPASSWORD_H
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#define KOPETEPASSWORD_H
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#include <tqobject.h>
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#include "kopete_export.h"
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namespace TDEWallet { class Wallet; }
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class TQPixmap;
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/** @internal */
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class KopetePasswordGetRequest;
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/** @internal */
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class KopetePasswordSetRequest;
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/** @internal */
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class KopetePasswordClearRequest;
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namespace Kopete
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{
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/**
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* @author Richard Smith <kde@metafoo.co.uk>
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*
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* The Kopete::Password object is responsible for storing and retrieving a
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* password for a plugin or account object.
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*
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* If the TDEWallet is active, passwords will be stored in it, otherwise, they
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* will be stored in the TDEConfig, in a slightly mangled form.
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*/
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class KOPETE_EXPORT Password : public TQObject
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{
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TQ_OBJECT
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public:
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/**
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* Create a new Kopete::Password object.
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*
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* @param configGroup The configuration group to save passwords in.
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* @param maxLength The maximum length of the password, or 0 if no maximum exists.
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* @param name The name for this object
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*
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* @deprecated Use the constructor that specifies if a blank password is allowed
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*/
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explicit Password( const TQString &configGroup, uint maxLength = 0, const char *name = 0 );
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/**
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* Create a new Kopete::Password object.
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*
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* @param configGroup The configuration group to save passwords in.
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* @param maxLength The maximum length of the password, or 0 if no maximum exists.
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* @param allowBlankPassword If this password is allowed to be blank
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* @param name The name for this object
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*/
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explicit Password( const TQString &configGroup, uint maxLength = 0,
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bool allowBlankPassword = false, const char *name = 0 );
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/**
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* Create a shallow copy of this object
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*/
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Password( Password &other, const char *name = 0 );
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~Password();
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/**
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* Assignment operator for passwords: make this object represent a different password
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*/
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Password &operator=( Password &other );
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/**
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* Returns the preferred size for images passed to the retrieve and request functions.
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*/
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static int preferredImageSize();
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/**
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* @brief Returns the maximum allowed length of the password, or 0 if there is no maximum.
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*/
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uint maximumLength();
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/**
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* Sets the maximum allowed length of the password.
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* @param max The new maximum allowed length, or 0 if there is no maximum.
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*/
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void setMaximumLength( uint max );
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/**
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* @brief Returns whether the password currently stored by this object is known to be incorrect.
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* This flag gets reset whenever the user enters a new password, and is
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* expected to be set by the user of this class if it is detected that the
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* password the user entered is wrong.
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*/
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bool isWrong();
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/**
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* Flag the password as being incorrect.
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* @see isWrong
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*/
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void setWrong( bool bWrong = true );
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/**
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* Type of password request to perform:
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* FromConfigOrUser : get the password from the config file, or from the user
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* if no password in config.
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* FromUser : always ask the user for a password (ie, if last password was
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* wrong or you know the password has changed).
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*/
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enum PasswordSource { FromConfigOrUser, FromUser };
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/**
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* @brief Start an asynchronous call to get the password.
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* Causes a password entry dialog to appear if the password is not set. Triggers
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* a provided slot when done, but not until after this function has returned (you
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* don't need to worry about reentrancy or nested event loops).
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*
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* @param receiver The object to notify when the password request finishes
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* @param slot The slot on receiver to call at the end of the request. The signature
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* of this function should be slot( const TQString &password ). password will
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* be the password if successful, or TQString() if failed.
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* @param image The icon to display in the dialog when asking for the password
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* @param prompt The message to display to the user, asking for a
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* password. Can be any TQt RichText string.
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* @param source The source the password is taken from if a wrong or
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* invalid password is entered or the password could not be found in the wallet
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*/
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void request( TQObject *receiver, const char *slot, const TQPixmap &image,
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const TQString &prompt, PasswordSource source = FromConfigOrUser );
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/**
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* @brief Start an asynchronous password request without a prompt
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*
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* Starts an asynchronous password request. Does not pop up a password entry dialog
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* if there is no password.
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* @see request(TQObject*,const char*,const TQPixmap&,const TQString&,bool,unsigned int)
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* The password given to the provided slot will be NULL if no password could be retrieved for
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* some reason, such as the user declining to open the wallet, or no password being found.
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*/
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void requestWithoutPrompt( TQObject *receiver, const char *slot );
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/**
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* @return true if the password is remembered, false otherwise.
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*
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* If it returns false, calling @ref request() will
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* pop up an Enter Password window.
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*/
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bool remembered();
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/**
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* @return true if you are allowed to have a blank password
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*/
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bool allowBlankPassword();
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/**
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* When a password request succeeds, the password is cached. This function
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* returns the cached password, if there is one, or TQString() if there
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* is not.
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*/
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TQString cachedValue();
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public slots:
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/**
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* Set the password for this account.
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* @param pass If set to TQString(), the password is forgotten unless you
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* specified to allow blank passwords. Otherwise, sets the password to
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* this value.
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*
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* Note: this function is asynchronous; changes will not be instant.
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*/
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void set( const TQString &pass = TQString() );
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/**
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* Unconditionally clears the stored password
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*/
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void clear();
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private:
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void readConfig();
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void writeConfig();
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class Private;
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Private *d;
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//TODO: can we rearrange things so these aren't friends?
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friend class ::KopetePasswordGetRequest;
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friend class ::KopetePasswordSetRequest;
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friend class ::KopetePasswordClearRequest;
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};
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}
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/**
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* This class is an implementation detail of KopetePassword.
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* @internal
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* @see KopetePassword
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*/
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class KopetePasswordRequestBase : public virtual TQObject
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{
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TQ_OBJECT
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signals:
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void requestFinished( const TQString &password );
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public slots:
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virtual void walletReceived( TDEWallet::Wallet *wallet ) = 0;
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virtual void slotOkPressed() = 0;
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virtual void slotCancelPressed() = 0;
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};
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#endif
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