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CSWinCtrlEntry.m
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CSWinCtrlEntry.m
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/*
* Copyright © 2003, Bryan L Blackburn. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. Neither the names Bryan L Blackburn, Withay.com, nor the names of
* any contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY BRYAN L BLACKBURN ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
// Interesting security issues are noted with XXX in comments
// XXX If it were possible, we'd clear out all the controls in windowWillClose:
/* CSWinCtrlEntry.m */
#import "CSWinCtrlEntry.h"
#import "CSDocument.h"
#import "CSAppController.h"
#import "NSData_crypto.h"
#import "NSData_clear.h"
// Defines for localized strings
#define CSWINCTRLENTRY_LOC_INVALIDURL NSLocalizedString( @"Invalid URL", @"" )
#define CSWINCTRLENTRY_LOC_URLNOTVALID \
NSLocalizedString( @"The URL entered is not a valid URL", @"" )
#define CSWINCTRLENTRY_LOC_NOTSAVED NSLocalizedString( @"Entry Not Saved", @"" )
#define CSWINCTRLENTRY_LOC_NOTSAVEDCLOSE \
NSLocalizedString( @"The entry has not been saved, close anyway?", @"" )
#define CSWINCTRLENTRY_LOC_CLOSEANYWAY NSLocalizedString( @"Close Anyway", @"" )
#define CSWINCTRLENTRY_LOC_DONTCLOSE NSLocalizedString( @"Don't Close", @"" )
@interface CSWinCtrlEntry (InternalMethods)
- (void) _closeSheetDidEnd:(NSWindow *)sheet
returnCode:(int)returnCode
contextInfo:(void *)contextInfo;
- (void) _undoManagerDidChange:(NSNotification *)notification;
@end
@implementation CSWinCtrlEntry
/*
* Character strings for password generation; the extra characters in genAll
* are doubled to help propagate them further
*/
static const char *genAlphanum = "aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwW"
"xXyYzZ0123456789";
static const char *genAll = "aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwW"
"xXyYzZ0123456789~!@#$%^&*()_+`-=[]\\{}|;':\",."
"/<>?~!@#$%^&*()_+`-=[]\\{}|;':\",./<>?";
- (id) initWithWindowNibName:(NSString *)windowNibName
{
self = [ super initWithWindowNibName:windowNibName ];
if( self != nil )
{
/*
* Create an undo manager for the notes field, so that "Undo Typing" won't
* be present in the Edit menu when sitting on a text field which doesn't
* support undo
* Watching undo/redo change notifications lets us update the 'document
* is dirty' status
*/
_notesUM = [ [ NSUndoManager alloc ] init ];
[ [ NSNotificationCenter defaultCenter ]
addObserver:self
selector:@selector( _undoManagerDidChange: )
name:NSUndoManagerDidUndoChangeNotification
object:_notesUM ];
[ [ NSNotificationCenter defaultCenter ]
addObserver:self
selector:@selector( _undoManagerDidChange: )
name:NSUndoManagerDidRedoChangeNotification
object:_notesUM ];
// Undo manager for everything else in the window
_otherUM = [ [ NSUndoManager alloc ] init ];
}
return self;
}
/*
* Generate a random password
*/
- (IBAction) doGenerate:(id)sender
{
const char *genString;
int genStringLength;
int genSize;
NSMutableString *randomString;
NSMutableData *randomData;
unsigned char *randomBytes;
int index;
if( [ [ NSUserDefaults standardUserDefaults ]
boolForKey:CSPrefDictKey_AlphanumOnly ] )
genString = genAlphanum;
else
genString = genAll;
genStringLength = strlen( genString );
genSize = [ [ NSUserDefaults standardUserDefaults ]
integerForKey:CSPrefDictKey_GenSize ];
randomString = [ NSMutableString stringWithCapacity:genSize ];
randomData = [ NSData randomDataOfLength:genSize ];
randomBytes = [ randomData mutableBytes ];
for( index = 0; index < genSize; index++ )
[ randomString appendFormat:@"%c",
genString[ randomBytes[ index ] % genStringLength ] ];
[ _passwordText setStringValue:randomString ];
[ randomData clearOutData ];
/*
* XXX deleteCharactersInRange: probably just changes its length; strings are
* a pain in the ass in Cocoa from a security point of view
*/
[ randomString deleteCharactersInRange:
NSMakeRange( 0, [ randomString length ] ) ];
[ [ self window ] setDocumentEdited:YES ];
}
/*
* Open the URL in the URL field
*/
- (IBAction) doOpenURL:(id)sender
{
BOOL urlIsInvalid;
NSURL *theURL;
urlIsInvalid = YES;
theURL = [ NSURL URLWithString:[ _urlText stringValue ] ];
if( theURL != nil && [ [ NSWorkspace sharedWorkspace ] openURL:theURL ] )
urlIsInvalid = NO;
if( urlIsInvalid )
NSBeginInformationalAlertSheet( CSWINCTRLENTRY_LOC_INVALIDURL,
nil, nil, nil, [ self window ], nil, nil,
nil, nil, CSWINCTRLENTRY_LOC_URLNOTVALID );
}
/*
* When the window needs an undo manager, we give it the notes one for that
* view, or the rest-of-the-window manager
*/
- (NSUndoManager *) windowWillReturnUndoManager:(NSWindow *)window
{
if( [ [ [ self window ] firstResponder ] isEqual:_notes ] )
return _notesUM;
else
return _otherUM;
}
/*
* We ignore this as changes in the main document don't affect entry
* controllers; we handle edited state separately
*/
- (void) setDocumentEdited:(BOOL)dirtyFlag
{
// Do nothing
}
/*
* Sent by the text fields
*/
- (void) controlTextDidChange:(NSNotification *)aNotification
{
NSString *nameTextString;
[ self updateDocumentEditedStatus ];
if( [ [ aNotification object ] isEqual:_nameText ] )
{
nameTextString = [ _nameText stringValue ];
if( nameTextString == nil || [ nameTextString length ] == 0 )
[ _mainButton setEnabled:NO ];
else
[ _mainButton setEnabled:YES ];
}
}
/*
* Sent by the category combo box
*/
- (void) comboBoxWillDismiss:(NSNotification *)notification
{
[ self updateDocumentEditedStatus ];
}
/*
* Sent by the text view, but not for undo/redo
*/
- (void)textDidChange:(NSNotification *)notification
{
[ self updateDocumentEditedStatus ];
}
/*
* If the window has been edited, ask about the close first
*/
- (BOOL) windowShouldClose:(id)sender
{
BOOL retval;
id alertPanel;
retval = YES;
if( [ [ self window ] isDocumentEdited ] )
{
alertPanel = NSGetCriticalAlertPanel( CSWINCTRLENTRY_LOC_NOTSAVED,
CSWINCTRLENTRY_LOC_NOTSAVEDCLOSE,
CSWINCTRLENTRY_LOC_CLOSEANYWAY,
CSWINCTRLENTRY_LOC_DONTCLOSE, nil );
[ NSApp beginSheet:alertPanel
modalForWindow:[ self window ]
modalDelegate:self
didEndSelector:
@selector( _closeSheetDidEnd:returnCode:contextInfo: )
contextInfo:NULL ];
retval = NO;
}
return retval;
}
/*
* Make sure any attached sheet gets ended prior to closing, otherwise the
* app gets stuck
*/
- (void) windowWillClose:(NSNotification *)notification
{
NSWindow *sheet;
sheet = [ [ self window ] attachedSheet ];
if( sheet != nil )
[ NSApp endSheet:sheet ];
}
/*
* Update the window's edited status based on whether anything in the window
* has changed
*/
- (void) updateDocumentEditedStatus
{
if( [ self nameChanged ] || [ self accountChanged ] ||
[ self passwordChanged ] || [ self urlChanged ] ||
[ self categoryChanged ] || [ self notesChanged ] )
[ [ self window ] setDocumentEdited:YES ];
else
[ [ self window ] setDocumentEdited:NO ];
}
/*
* Provide information to combo boxes for categories
*/
- (int) numberOfItemsInComboBox:(NSComboBox *)aComboBox
{
if( [ aComboBox isEqual:_category ] )
return [ [ [ self document ] categories ] count ];
return 0;
}
- (id) comboBox:(NSComboBox *)aComboBox objectValueForItemAtIndex:(int)index
{
if( [ aComboBox isEqual:_category ] )
return [ [ [ self document ] categories ] objectAtIndex:index ];
return nil;
}
- (unsigned int) comboBox:(NSComboBox *)aComboBox
indexOfItemWithStringValue:(NSString *)aString
{
if( [ aComboBox isEqual:_category ] )
return [ [ [ self document ] categories ] indexOfObject:aString ];
return -1;
}
/*
* The ...Changed are meant to be overridden in subclasses
*/
- (BOOL) nameChanged
{
return YES;
}
- (BOOL) accountChanged
{
return YES;
}
- (BOOL) passwordChanged
{
return YES;
}
- (BOOL) urlChanged
{
return YES;
}
- (BOOL) categoryChanged
{
return YES;
}
- (BOOL) notesChanged
{
return YES;
}
/*
* Cleanup
*/
- (void) dealloc
{
[ _notesUM release ];
[ _otherUM release ];
[ super dealloc ];
}
/*
* Handle the "should close" sheet
*/
- (void) _closeSheetDidEnd:(NSWindow *)sheet
returnCode:(int)returnCode
contextInfo:(void *)contextInfo
{
if( returnCode == NSAlertDefaultReturn )
{
// Close the window this way so the proper delegation is performed
[ [ self window ] setDocumentEdited:NO ];
[ [ NSRunLoop currentRunLoop ]
performSelector:@selector( performClose: )
target:[ self window ]
argument:self
order:9999
modes:[ NSArray arrayWithObject:NSDefaultRunLoopMode ] ];
}
[ sheet orderOut:self ];
[ NSApp endSheet:sheet ];
NSReleaseAlertPanel( sheet );
}
/*
* When the undo manager for the notes text view performs undo or redo, we
* update the edited status
*/
- (void) _undoManagerDidChange:(NSNotification *)notification
{
[ self updateDocumentEditedStatus ];
}
@end