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crController.m
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crController.m
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//
// crController.m
// CronniX
//
// Created by sas on Sat Sep 15 2001.
// Copyright (c) 2001 Sven A. Schmidt. All rights reserved.
//
// abstracture IT-Beratung GmbH
// www.abstracture.de
//
#import "crController.h"
#import "loadCrontabController.h"
#import "BLAuthentication.h"
#import "UserImageRep.h"
#import "RunNowNibController.h"
#import "NewTaskDialogController.h"
#import "EditTaskDialogController.h"
#import "SasString.h"
NSString *cronCommand = @"/usr/bin/crontab";
NSString *suCrontabResource = @"sucrontab";
static NSString *cronnixHomepage = @"http://www.abstracture.de/projects-en/cronnix";
@implementation crController
- (id)init {
if ( self = [ super init ] ) {
[ [ NSNotificationCenter defaultCenter ] addObserver: self selector:@selector(documentModified:)
name: DocumentModifiedNotification object: nil ];
[ [ NSNotificationCenter defaultCenter ] addObserver: self selector:@selector(userSelected:)
name: UserSelectedNotification object: nil ];
[ [ NSNotificationCenter defaultCenter ] addObserver: self selector:@selector(taskCreated:)
name: TaskCreatedNotification object: nil ];
[ [ NSNotificationCenter defaultCenter ] addObserver: self selector:@selector(taskEdited:)
name: TaskEditedNotification object: nil ];
}
return self;
}
- (void)dealloc {
[[ NSNotificationCenter defaultCenter ] removeObserver: self ];
[ toolbar release ];
[ currentCrontab release ];
[ super dealloc];
}
// --------------------------------------------------------------------------------------------------------------
// controls
- (IBAction)loadCrontab:(id)sender {
[ self loadCrontab ];
}
- (IBAction)newLine:(id)sender {
if ( [ [ NSApp keyWindow ] isEqual: winMain ] )
[ self newLine ];
if ( [ [ NSApp keyWindow ] isEqual: [ self envVarWindow ] ] )
[ [ envVariablesNibController sharedInstance ] newLine ];
}
- (IBAction)newLineWithDialog:(id)sender {
if ( [ [ NSApp keyWindow ] isEqual: winMain ] )
[ self newLineWithDialog ];
}
- (IBAction)removeLine:(id)sender {
if ( [ [ NSApp keyWindow ] isEqual: winMain ] ) {
int lastSelectedRow = [ crTable selectedRow ];
[ self removeLinesInList: [ crTable selectedRowEnumerator ] ];
int nRows = [ crTable numberOfRows ];
int rowToSelect = lastSelectedRow < nRows ? lastSelectedRow : nRows -1;
[ crTable selectRow: rowToSelect byExtendingSelection: NO ];
}
if ( [ [ NSApp keyWindow ] isEqual: [ self envVarWindow ] ] )
[ [ envVariablesNibController sharedInstance ] removeLine: sender ];
}
- (IBAction)duplicateLine:(id)sender {
if ( [ [ NSApp keyWindow ] isEqual: winMain ] ) {
[ self duplicateLinesInList: [ crTable selectedRowEnumerator ] ];
if ( [ crTable selectedRow ] == -1 ) {
[ crTable selectRow: [ crTable numberOfRows ] -1 byExtendingSelection: NO ];
}
}
if ( [ [ NSApp keyWindow ] isEqual: [ self envVarWindow ] ] )
[ [ envVariablesNibController sharedInstance ] duplicateLine ];
}
- (IBAction)writeCrontab:(id)sender {
[ self writeCrontab ];
}
- (IBAction)showInfoPanel:(id)sender {
[[NSApplication sharedApplication] orderFrontStandardAboutPanel:sender];
}
- (IBAction)openForUser:(id)sender {
[ self crontabShouldLoad ];
}
- (IBAction)openSystemCrontab:(id)sender {
[ self systemCrontabShouldLoad ];
}
- (void)openForUser {
[ envVariablesNibController hideWindow ];
[ [ loadCrontabController sharedInstance ] beginSheetForWindow: winMain ];
}
- (void)crontabShouldLoad {
if ( [ self isDirty ] ) {
NSBeginAlertSheet(
NSLocalizedString( @"Unsaved Data", @"Unsaved data alert sheet title" ),
NSLocalizedString( @"Save", @"Save in dialog" ),
NSLocalizedString( @"Discard", @"discard in dialog" ),
NSLocalizedString( @"Cancel", @"Cancel in dialog" ),
winMain, self, NULL,
@selector(didEndLoadSheet:returnCode:contextInfo:), nil,
NSLocalizedString( @"You have modified your crontab. Save changes?",
@"unsaved changes warning in alert sheet" ) );
} else {
[ self openForUser ];
}
}
- (void)systemCrontabShouldLoad {
if ( [ self isDirty ] ) {
NSBeginAlertSheet(
NSLocalizedString( @"Unsaved Data", @"Unsaved data alert sheet title" ),
NSLocalizedString( @"Save", @"Save in dialog" ),
NSLocalizedString( @"Discard", @"discard in dialog" ),
NSLocalizedString( @"Cancel", @"Cancel in dialog" ),
winMain, self, NULL,
@selector(didEndLoadSytemCrontabSheet:returnCode:contextInfo:), nil,
NSLocalizedString( @"You have modified your crontab. Save changes?",
@"unsaved changes warning in alert sheet" ) );
} else {
[ self openSystemCrontab ];
}
}
- (void)crontabShouldImport {
if ( [ self isDirty ] ) {
NSBeginAlertSheet(
NSLocalizedString( @"Unsaved Data", @"Unsaved data alert sheet title" ),
NSLocalizedString( @"Save", @"Save in dialog" ),
NSLocalizedString( @"Discard", @"discard in dialog" ),
NSLocalizedString( @"Cancel", @"Cancel in dialog" ),
winMain, self, NULL,
@selector(didEndImportCrontabSheet:returnCode:contextInfo:), nil,
NSLocalizedString( @"You have modified your crontab. Save changes?",
@"unsaved changes warning in alert sheet" ) );
} else {
[ self importCrontab ];
}
}
- (void)didEndLoadSheet:(NSWindow *)sheet returnCode:(int)returnCode contextInfo:(void *)contextInfo {
switch ( returnCode ) {
case NSAlertDefaultReturn: // yes, save
[ self writeCrontab ];
[ self openForUser ];
break;
case NSAlertAlternateReturn: // no, discard
[ self openForUser ];
break;
case NSAlertOtherReturn: // cancel, go back
break;
}
}
- (void)didEndLoadSytemCrontabSheet:(NSWindow *)sheet returnCode:(int)returnCode contextInfo:(void *)contextInfo {
switch ( returnCode ) {
case NSAlertDefaultReturn: // yes, save
[ self writeCrontab ];
[ self openSystemCrontab ];
break;
case NSAlertAlternateReturn: // no, discard
[ self openSystemCrontab ];
break;
case NSAlertOtherReturn: // cancel, go back
break;
}
}
- (void)didEndImportCrontabSheet:(NSWindow *)sheet returnCode:(int)returnCode contextInfo:(void *)contextInfo {
switch ( returnCode ) {
case NSAlertDefaultReturn: // yes, save
[ self writeCrontab ];
[ self importCrontab ];
break;
case NSAlertAlternateReturn: // no, discard
[ self importCrontab ];
break;
case NSAlertOtherReturn: // cancel, go back
break;
}
}
- (BOOL)isSystemCrontab {
return [ [ self crontabForUser ] isEqualToString: @"system" ];
}
- (void)openSystemCrontab {
NSFileHandle *fh = [ NSFileHandle fileHandleForReadingAtPath: @"/etc/crontab" ];
NSData *crondata;
if ( fh ) {
crondata = [ fh readDataToEndOfFile ];
if ( ! crondata ) return; // pop up an error sheet...
[ self clearCrontab ];
// need to set this early, because "system" parsing is slightly different
[ self setCrontabForUser: @"system" ];
[ self parseCrontab: crondata ];
[ self setDirty: NO ];
}
}
- (void)insertProgram:(id)sender {
int result;
//NSArray *fileTypes = [NSArray arrayWithObject:@"app"];
NSOpenPanel *oPanel = [NSOpenPanel openPanel];
[ oPanel setAllowsMultipleSelection: YES ];
[ oPanel setPrompt: NSLocalizedString( @"Insert", @"Insert program std file open dialog: alternative label for open button" ) ];
result = [ oPanel runModalForDirectory: NSHomeDirectory() file: nil types: nil ];
if (result == NSOKButton) {
NSArray *filenames = [oPanel filenames];
NSEnumerator *iter = [ filenames objectEnumerator ];
NSString *fname;
while ( fname = [ iter nextObject ] )
[ self insertProgramWithString: fname ];
}
}
- (void)envVariables:(id)sender {
[ envVariablesNibController showWindow ];
}
- (void)activeButtonToggled {
[ [ NSNotificationCenter defaultCenter ] postNotificationName: DocumentModifiedNotification object: self ];
}
- (IBAction)runSelectedCommand:(id)sender {
[ self runSelectedCommand ];
}
- (void)runSelectedCommand {
NSTextView *tv = [ [ RunNowNibController sharedInstance ] outputTextField ];
NSString *cmd = [ [ self selectedTask ] objectForKey: @"Command" ];
NSData *output;
NSString *outputString;
[ [ RunNowNibController sharedInstance ] showWindow ];
// NSLog( @"Running command %@", cmd );
[ tv setEditable: YES ];
[ tv setString: NSLocalizedString( @"Running command\n", @"Information text displayed in the runNowPanel" ) ];
[ tv insertText: cmd ];
[ tv insertText: NSLocalizedString( @"\nThe output will appear below when the command has finished executing\n", @"Information text displayed in the runNowPanel" ) ];
[ tv setEditable: NO ];
output = [ self runCliCommand: @"/bin/tcsh" WithArgs: [ NSArray arrayWithObjects: @"-c", cmd, nil ] ];
if ( ! output )
outputString = @"- no output from command -";
else
outputString = [ [ [ NSString alloc ] initWithData: output
encoding: [ NSString defaultCStringEncoding ] ] autorelease ];
//NSLog( outputString );
[ tv setEditable: YES ];
[ tv insertText: outputString ];
[ tv setEditable: NO ];
//[ outputString release ];
}
- (void)runSelectedCommandOld {
NSTextView *tv = [ [ RunNowNibController sharedInstance ] outputTextField ];
NSString *cmd = [ [ self selectedTask ] objectForKey: @"Command" ];
NSData *output;
NSString *outputString;
[ [ RunNowNibController sharedInstance ] showWindow ];
// NSLog( @"Running command %@", cmd );
[ tv setEditable: YES ];
[ tv setString: NSLocalizedString( @"Running command\n", @"Information text displayed in the runNowPanel" ) ];
[ tv insertText: cmd ];
[ tv insertText: NSLocalizedString( @"\nThe output will appear below when the command has finished executing\n", @"Information text displayed in the runNowPanel" ) ];
[ tv setEditable: NO ];
output = [ self runCliCommand: @"/bin/tcsh" WithArgs: [ NSArray arrayWithObjects: @"-c", cmd, nil ] ];
if ( ! output )
outputString = @"- no output from command -";
else
outputString = [ [ [ NSString alloc ] initWithData: output
encoding: [ NSString defaultCStringEncoding ] ] autorelease ];
//NSLog( outputString );
[ tv setEditable: YES ];
[ tv insertText: outputString ];
[ tv setEditable: NO ];
//[ outputString release ];
}
- (IBAction)openHomepage:(id)sender {
[[ NSWorkspace sharedWorkspace ] openURL: [ NSURL URLWithString: cronnixHomepage ]];
}
- (IBAction)checkForUpdates:(id)sender {
NSString *currentVersion = [[[ NSBundle bundleForClass: [ self class ]] infoDictionary ]
objectForKey: @"CFBundleVersion" ];
NSString *url = [ NSString stringWithFormat: @"%@/%@", cronnixHomepage, @"version.xml" ];
NSDictionary *dict = [ NSDictionary dictionaryWithContentsOfURL: [ NSURL URLWithString: url ]];
if ( ! dict ) {
NSBeginAlertSheet(
NSLocalizedString( @"Connection failure",
@"Check for update failure sheet title" ),
NSLocalizedString( @"Bummer",
@"Check for update connection failure acknowledgement button title" ),
nil,
nil,
winMain, self, NULL,
nil, nil,
NSLocalizedString( @"Someone tripped over the wire to the internet. Or maybe it's the rain. Wait for clear skies and try again.",
@"update check connection failure dialog text" ) );
}
NSString *latestVersion = [ dict valueForKey: @"Version" ];
if ( ! [ latestVersion isEqualToString: currentVersion ] ) {
id changes = [ dict objectForKey: @"Changes" ];
NSString *msg = [ NSString stringWithFormat: NSLocalizedString( @"There's a new version available at %@.\n\nChanges in version %@:\n", @"new version available dialog text" ),
cronnixHomepage, latestVersion ];
NSString *s = [ changes componentsJoinedByString: @"\n¥ " ];
s = [ NSString stringWithFormat: @"%@\n¥ %@", msg, s ];
NSBeginAlertSheet(
NSLocalizedString( @"Update Available",
@"Update available alert sheet title" ),
NSLocalizedString( @"Go to download page",
@"go to download page button title in 'update available' dialog" ),
nil,
NSLocalizedString( @"Cancel", @"Cancel in dialog" ),
winMain, self, NULL,
@selector(didEndUpdateAvailableSheet:returnCode:contextInfo:), nil,
s );
} else {
NSBeginAlertSheet(
NSLocalizedString( @"No Update Available",
@"No update available alert sheet title" ),
NSLocalizedString( @"Too bad",
@"confirmation button title in 'no update available' dialog" ),
nil,
nil,
winMain, self, NULL,
nil, nil,
NSLocalizedString( @"There's no new version available.",
@"no new version available dialog text" ) );
}
}
// --------------------------------------------------------------------------------------------------------------
// workhorses
- (void)alertForNonExistentUser: (NSString *)user{
NSBeginAlertSheet(
NSLocalizedString( @"User does not exist", @"user doesn't exist warning in open failure alert sheet" ),
NSLocalizedString( @"OK", @"Ok in dialog" ),
nil, nil, winMain, winMain, NULL, NULL, nil,
NSLocalizedString( @"I couldn't find a home directory for '%@' on your system. Maybe you mistyped the name or (god no!) deleted the directory. Better have look...", @"Home directory not found warning in open failure alert sheet" ),
user );
}
- (void)loadCrontab {
[ self loadCrontabForUser: nil ];
}
- (void)loadCrontabForUser: (NSString *)user {
if ( ! user || [ user isEqualToString: NSUserName() ] ) {
[ self loadCrontabForDefaultUser ];
} else if ( [ user isEqualToString: @"system" ] ) {
[ self openSystemCrontab ];
return;
} else {
NSMutableArray *args = [ NSMutableArray array ];
NSString *cronString;
BLAuthentication *authObj = [ BLAuthentication sharedInstance ];
// best solution found to test for user existence
NSString *userHome = NSHomeDirectoryForUser( user );
if ( ! userHome ) {
[ self alertForNonExistentUser: user ];
return;
}
//NSLog( @"Loading for user %@", user );
[ args addObject: @"-u" ];
[ args addObject: user ];
[ args addObject: @"-l" ];
cronString = [ authObj executeCommand: [ self suCronCommand ] withArgs: args ];
//NSLog( @"------- Received cronstring of length: %i", [ cronString length ] );
//NSLog( cronString );
if ( [ cronString length ] != 0 ) {
NSData *cronData = [ NSData dataWithData: [ cronString dataUsingEncoding: [ NSString defaultCStringEncoding ] ] ];
[ self clearCrontab ];
[ self setCrontabForUser: user ]; // setting this before parsing is important!
[ self parseCrontab: cronData ];
[ self setDirty: NO ];
//NSLog( @"Opened for user: %@", user );
} else {
NSBeginAlertSheet(
NSLocalizedString( @"Empty Crontab", @"empty crontab alert sheet" ),
NSLocalizedString( @"OK", @"Ok in dialog" ),
nil, nil, winMain, winMain, NULL, NULL, nil,
NSLocalizedString( @"The system returned an empty crontab for '%s'. This probably just means that there's no crontab for this user yet. Pressing OK will allow you to edit and install a new crontab and you will never see this alert sheet again. If, however, you are sure that '%s' does have a crontab, then you may have encountered an temporal anomaly. Contact the author (see the About box) and complain like there's no tomorrow.", @"descriptive text in empty crontab alert sheet (make sure translations preserve the sarcastic tone ;-)" ),
[ user cString ], [ user cString ] );
[ self clearCrontab ];
[ self setCrontabForUser: user ];
[ self setDirty: NO ];
}
}
}
// new still testing
- (void)loadCrontabForDefaultUser {
int status;
NSTask *task;
NSMutableArray *args = [ NSMutableArray array ];
NSPipe *stdOutPipe = [ NSPipe pipe ];
NSPipe *stdErrPipe = [ NSPipe pipe ];
NSFileHandle *stdOutReadHandle = [ stdOutPipe fileHandleForReading ];
NSFileHandle *stdErrReadHandle = [ stdErrPipe fileHandleForReading ];
NSData *cronData;
NSData *stdErrData;
NSString *stdErrString;
[ args addObject: @"-l" ];
task = [[ NSTask alloc ] init ];
[ task setCurrentDirectoryPath: @"." ];
[ task setLaunchPath: cronCommand ];
[ task setArguments: args ];
[ task setStandardOutput: stdOutPipe ];
[ task setStandardError: stdErrPipe ];
[ task launch ];
[ task waitUntilExit ];
cronData = [ [ NSData alloc ] initWithData :[ stdOutReadHandle readDataToEndOfFile ] ];
stdErrData = [ [ NSData alloc ] initWithData :[ stdErrReadHandle readDataToEndOfFile ] ];
status = [ task terminationStatus ];
[ task release ];
stdErrString = [ [ NSString alloc ] initWithData: stdErrData encoding: [ NSString defaultCStringEncoding ] ];
// Check for "no crontab for" in stderr: If we get this, this user doesn't have a crontab, yet. Not a problem,
// we just parse the empty cronData below.
if ( [ stdErrString isLike: @"*no crontab for*" ] ) {
status = 0; // set status OK
}
switch ( status ) {
case 0: // everything ok
[ self clearCrontab ];
[ self setCrontabForUser: nil ];
[ self parseCrontab: cronData ];
[ self setDirty: NO ];
break;
case 1: // failure (not privileged)
NSBeginAlertSheet(
NSLocalizedString( @"Failure", @"open failure alert sheet" ),
NSLocalizedString( @"OK", @"Ok in dialog" ),
nil, nil, winMain, winMain, NULL, NULL, nil,
NSLocalizedString( @"Something prevented me from reading your crontab - maybe some ion storm in the asteroid belt. See if it's that and fix it or otherwise mail the author (see the About box) and complain like there's no tomorrow.", @"descriptive text in generic failure alert sheet. Try to get fatalism and ignorance across in translation..." ) );
//[ self setCrontabForUser: nil ];
break;
}
[ cronData release ];
[ stdErrData release ];
[ stdErrString release ];
}
- (void)clearCrontab {
[ crTable deselectAll: nil ];
[ currentCrontab clear ];
[ crTable reloadData ];
[[ envVariablesNibController sharedInstance ] clear ];
[ infoTextField setStringValue: @"" ];
[ self setDirty: NO ];
}
- (void)showUserColumn {
int commandColPos = [ crTable columnWithIdentifier: [ commandColumn identifier ]];
if ( [ crTable columnWithIdentifier: [ userColumn identifier ]] == -1 ) {
[ crTable addTableColumn: userColumn ];
}
if ( commandColPos < [ crTable columnWithIdentifier: [ userColumn identifier ]] )
[ crTable moveColumn: [ crTable columnWithIdentifier: [ userColumn identifier ]]
toColumn: commandColPos ];
}
- (void)hideUserColumn {
if ( [ crTable columnWithIdentifier: [ userColumn identifier ]] != -1 )
[ crTable removeTableColumn: userColumn ];
}
- (void)parseCrontab: (NSData *)data {
//[ currentCrontab autorelease ];
[ currentCrontab release ]; // culprit, but why???
currentCrontab = [[ Crontab alloc ] initWithData: data forUser: [ self crontabForUser ] ];
[ crTable reloadData ];
[[ envVariablesNibController sharedInstance ] setCrontab: currentCrontab ];
[ self isSystemCrontab ] ? [ self showUserColumn ] : [ self hideUserColumn ];
}
- (void)openCrontabFromFile: (NSString *)path {
[ currentCrontab release ];
currentCrontab = [[ Crontab alloc ] initWithContentsOfFile: path forUser: NSUserName() ];
[ self setCrontabForUser: nil ];
[ crTable reloadData ];
[[ envVariablesNibController sharedInstance ] setCrontab: currentCrontab ];
[ self setDirty: NO ];
}
- (id)defaultTask {
NSString *string;
NSString *cmd = NSLocalizedString( @"echo \"Happy New Year!\"",
@"default command for new crontab tasks" );
if ( [ self isSystemCrontab ] ) {
string = [NSString stringWithFormat: @"0 0 1 1 * root %@", cmd];
} else {
string = [NSString stringWithFormat: @"0 0 1 1 * %@", cmd];
}
TaskObject *task = [[TaskObject alloc] initWithString: string
forSystem: [self isSystemCrontab]];
return [task autorelease];
}
- (void)newLineWithCommand: (NSString *)cmd {
id task = [self defaultTask];
[task setCommand: cmd];
[self newLineWithTask: task];
}
- (void)newLine {
[self newLineWithTask: [self defaultTask]];
}
- (void)newLineWithDialog {
[ crTable deselectAll: nil ];
id dialog = [[ NewTaskDialogController alloc ] initWithTask: [self defaultTask]];
//[ NewTaskDialogController sharedInstance ];
[ dialog modalForWindow: [ self window ] ];
}
- (void)newLineWithTask: (TaskObject *)aTask {
if ( [ self isSystemCrontab ] )
[ aTask setUser: @"root" ];
[ currentCrontab addTask: aTask ];
[ crTable reloadData ];
[ crTable selectRow: [ currentCrontab indexOfTask: aTask ] byExtendingSelection: NO ];
[ self setDirty: YES ];
}
- (void)editSelectedTask: (id)sender {
[ self editSelectedTask ];
}
- (void)editSelectedTask {
id task = [ self selectedTask ];
id dialog = [[ EditTaskDialogController alloc ] initWithTask: task ];
//[ EditTaskDialogController sharedInstanceWithTask: task ];
[ dialog modalForWindow: [ self window ]];
}
- (void)insertProgramWithString: (NSString *)path {
int row = [ crTable selectedRow ];
NSMutableString *cmd;
//NSLog( @"adding %@", path );
if ( [ path isLike: @"* *" ] )
cmd = [ NSString stringWithFormat: @"/usr/bin/open \"%s\"", [ path cString ] ];
else
cmd = [ NSString stringWithFormat: @"/usr/bin/open %s", [ path cString ] ];
if ( row == -1 ) { // new line
[ self newLineWithCommand: cmd ];
} else { // modify existing line
[ [ currentCrontab taskAtIndex: row ] setObject: cmd forKey: @"Command" ];
}
[ self setDirty: YES ];
}
- (void)removeLine {
[ self removeLinesInList: [ crTable selectedRowEnumerator ]];
}
- (void)removeLinesInList: (NSEnumerator *)list {
id item;
list = [[ list allObjects ] reverseObjectEnumerator ];
while ( item = [ list nextObject ] ) {
[ currentCrontab removeTaskAtIndex: [ item intValue ] ];
}
[ crTable reloadData ];
if ( [crTable selectedRow] != -1 )
[self showInfoForTask: [crTable selectedRow]];
[ self setDirty: YES ];
}
- (void)replaceLineAtRow: (int)row withObject: (id)obj {
if ( row < 0 || row > [ crTable numberOfRows ]-1 ) {
NSBeep();
return;
}
[ currentCrontab replaceTaskAtIndex: row withTask: obj ];
[ crTable reloadData ];
[ self setDirty: YES ];
}
- (void)duplicateLinesInList: (NSEnumerator *)list {
id index;
BOOL firstInList = YES;
int insertionPoint = 0;
int listCount = 0;
list = [[ list allObjects ] reverseObjectEnumerator ];
while ( index = [ list nextObject ] ) {
if ( firstInList ) {
insertionPoint = [ index intValue ] +1;
firstInList = NO;
}
id duplicate = [ TaskObject taskWithTask: [ currentCrontab taskAtIndex: [ index intValue ]]];
[ currentCrontab insertTask: duplicate atIndex: insertionPoint ];
listCount++;
}
[ crTable reloadData ];
[ self setDirty: YES ];
// select the newly created rows
[ crTable selectRow: insertionPoint byExtendingSelection: NO ];
int i;
for ( i = 1; i < listCount; i++ ) {
[ crTable selectRow: insertionPoint +i byExtendingSelection: YES ];
}
}
- (int)writeSystemCrontab {
NSPipe *pipe = [ NSPipe pipe ];
NSFileHandle *writeHandle = [ pipe fileHandleForWriting ];
NSData *cronData = [ currentCrontab data ];
NSMutableArray *args = [ NSMutableArray array ];
BLAuthentication *authObj = [ BLAuthentication sharedInstance ];
[ args addObject: @"/etc/crontab" ];
[ writeHandle writeData: cronData ];
[ writeHandle closeFile ];
[ authObj executeCommand: @"/usr/bin/tee" withArgs: args withPipe: pipe ];
// error handling???
return 0;
}
- (int)writeUserCrontab {
NSPipe *pipe = [ NSPipe pipe ];
NSFileHandle *writeHandle = [ pipe fileHandleForWriting ];
NSData *cronData = [ currentCrontab data ];
NSMutableArray *args = [ NSMutableArray array ];
BLAuthentication *authObj = [ BLAuthentication sharedInstance ];
[ args addObject: [ NSString stringWithFormat: @"-u" ] ];
[ args addObject: [ self crontabForUser ] ];
[ args addObject: @"-" ];
//NSLog( @"Writing for user: %@", [ self loadedForUser ] );
[ writeHandle writeData: cronData ];
[ writeHandle closeFile ];
[ authObj executeCommand: [ self suCronCommand ] withArgs: args withPipe: pipe ];
// error handling???
return 0;
}
- (int)writeStandardCrontab {
NSPipe *pipe = [ NSPipe pipe ];
NSFileHandle *writeHandle = [ pipe fileHandleForWriting ];
NSData *cronData = [ currentCrontab data ];
NSTask *task;
int status;
NSMutableArray *args = [ NSMutableArray array ];
[ args addObject: @"-" ];
task = [[ NSTask alloc ] init ];
[ task setCurrentDirectoryPath: @"." ];
[ task setLaunchPath: cronCommand ];
[ task setArguments: args ];
[ task setStandardInput: pipe ];
[ task launch ];
if ( [ task isRunning ] ) {
[ writeHandle writeData: cronData ];
[ writeHandle closeFile ];
}
[ task waitUntilExit ];
status = [ task terminationStatus ];
[ task release ];
return status;
}
// 2.0
- (void)writeCrontab {
int status;
//NSLog( "write:\n%s", [ [ cronData description ] cString ] );
//return;
if ( [ self isSystemCrontab ] ) {
status = [ self writeSystemCrontab ];
} else if ( [ self crontabForUser ] ) {
status = [ self writeUserCrontab ];
} else {
status = [ self writeStandardCrontab ];
}
//NSLog( @"writeCrontab status: %i", status );
switch ( status ) {
case 0: // everything ok
[ self setDirty: NO ];
break;
case 1: // not privileged to open with username
if ( [ self crontabForUser ] ) {
NSBeginAlertSheet(
NSLocalizedString( @"Failure", @"write failure alert sheet" ),
NSLocalizedString( @"OK", @"Ok in dialog" ),
nil, nil, winMain, winMain, NULL, NULL, nil,
NSLocalizedString( @"Insufficient privileges to write crontab for user \"%s\".", @"descriptive text in write failure alert sheet" ),
[ [ self crontabForUser ] cString ] );
} else {
NSBeginAlertSheet(
NSLocalizedString( @"Failure", @"write failure alert sheet" ),
NSLocalizedString( @"OK", @"Ok in dialog" ),
nil, nil, winMain, winMain, NULL, NULL, nil,
NSLocalizedString( @"Insufficient privileges to write crontab.", @"descriptive text in write failure alert sheet" ) );
}
break;
}
}
- (void)exportCrontab: (id)sender {
NSSavePanel *savePanel = [ NSSavePanel savePanel ];
[ savePanel setPrompt: NSLocalizedString( @"Export", @"Export dialog button title" ) ];
int result = [ savePanel runModalForDirectory: NSHomeDirectory()
file: [ NSString stringWithFormat: @"%@.crontab", NSLocalizedString( @"untitled", @"new crontab file name" ) ]];
if ( result == NSFileHandlingPanelOKButton ) {
NSString *filename = [ savePanel filename ];
BOOL success = [[ self currentCrontab ] writeAtPath: filename ];
if ( ! success ) {
NSBeginAlertSheet(
NSLocalizedString( @"Export failure",
@"Export failure sheet title" ),
NSLocalizedString( @"Darn!",
@"Export failure acknowledgement button title" ),
nil,
nil,
winMain, self, NULL,
nil, nil,
NSLocalizedString( @"Could not export crontab. Are you sure you have a hard drive?",
@"export failure dialog text" ) );
}
}
}
- (void)importCrontab: (id)sender {
[ self crontabShouldImport ];
}
- (void)importCrontab {
NSOpenPanel *openPanel = [ NSOpenPanel openPanel ];
[ openPanel setAllowsMultipleSelection: NO ];
[ openPanel setPrompt: NSLocalizedString( @"Import", @"Import file dialog: alternative label for open button" ) ];
NSArray *fileTypes = [NSArray arrayWithObject:@"crontab"];
int result = [ openPanel runModalForDirectory: NSHomeDirectory() file: nil types: fileTypes ];
if (result == NSOKButton) {
NSString *filename = [ openPanel filename ];
[ self openCrontabFromFile: filename ];
// set the dirty flag after importing
[ self setDirty: YES ];
}
}
- (void)setupUserColumn {
NSLog( @"Setting up userColumn" );
userColumn = [ [ NSTableColumn alloc ] initWithIdentifier: @"User" ];
[ [ userColumn headerCell ] setStringValue: @"User" ];
[ userColumn setWidth: 50 ];
[ [ userColumn headerCell ] setFont: [NSFont systemFontOfSize:[NSFont systemFontSize]] ];
[ [ userColumn headerCell ]
setTitle: NSLocalizedString( @"User", @"Column title for extra column in system crontab. Generated programmatically (i.e. not in a nib) with width: 50" ) ];
// [ crTable addTableColumn: userColumn ];
// [ crTable moveColumn: [ crTable numberOfColumns ] -1 toColumn: [ crTable numberOfColumns ] -2 ];
// [ userColumn release ];
}
// Setting up the "Active" column
- (void)setupActiveColumn {
NSTableColumn *col = [[ crTable tableColumns] objectAtIndex: 0];
NSButtonCell *cell = [[NSButtonCell alloc] init];
//SwitchFormatter *formatter = [ [ SwitchFormatter alloc ] init ];
//[ cell setFormatter: formatter ];
[ cell setButtonType: NSSwitchButton ];
[ cell setAction: @selector(activeButtonToggled) ];
[ cell setTarget: self ];
[ col setDataCell: cell ];
[ cell release ];
//[ formatter release ];
}
// --------------------------------------------------------------------------------------------------------------
// accessors
- (id)mainWindow {
return winMain;
}
- (id)window {
return winMain;
}
- (BOOL)isDirty {
return isDirty;
}
- (void)setDirty: (BOOL)value {
isDirty = value;
}
- (void)documentModified: (NSNotification *)notification {
[ self setDirty: YES ];
}
- (void)userSelected: (NSNotification *)notification {
loadCrontabController *lcc = [ loadCrontabController sharedInstance ];
NSString *username = [ lcc username ];
int returnCode = [ lcc returnCode ];
switch ( returnCode ) {
case 0: // cancel
break; // don't do anything
case 1: // load
if ( username ) [ self loadCrontabForUser: username ];
break;
case 2: // default
[ self loadCrontabForUser: nil ]; // load for default user
break;
}
}
- (void)taskCreated: (NSNotification *)notification {
[ self newLineWithTask: [ notification object ]];
}
- (void)taskEdited: (NSNotification *)notification {
[ self replaceLineAtRow: [ self selectedRow ] withObject: [ notification object ]];
}
- (BOOL)validateMenuItem: (id <NSMenuItem>)menuItem {
if ( [ menuItem isEqual: mSave ] ) {
return [ self isDirty ];
}
if ( [ menuItem isEqual: duplicateMenuItem ] ) {
if ( [ [ NSApp keyWindow ] isEqual: winMain ] )
return [ crTable selectedRow ] != -1; // validate if a row is selected
if ( [ [ NSApp keyWindow ] isEqual: [ self envVarWindow ] ] )
return [ [ envVariablesNibController sharedInstance ] selectedRow ] != -1;
}
if ( [ menuItem isEqual: deleteMenuItem ] ) {
if ( [ [ NSApp keyWindow ] isEqual: winMain ] )
return [ crTable selectedRow ] != -1; // validate if a row is selected
if ( [ [ NSApp keyWindow ] isEqual: [ self envVarWindow ] ] )
return [ [ envVariablesNibController sharedInstance ] selectedRow ] != -1;
}
if ( [ menuItem isEqual: showHideMenuItem ] ) {
BOOL isVisible = YES;
if ( [ [ NSApp keyWindow ] isEqual: winMain ] )
isVisible = [ toolbar isVisible ];
if ( [ [ NSApp keyWindow ] isEqual: [ self envVarWindow ] ] )
isVisible = [ [ [ envVariablesNibController sharedInstance ] toolbar ] isVisible ];
isVisible ? [ menuItem setTitle: NSLocalizedString( @"Hide Toolbar", @"Hide toolbar menu item label" ) ] : [ menuItem setTitle: NSLocalizedString( @"Show Toolbar", @"Show toolbar menu item label" ) ];
}
if ( [ menuItem isEqual: runNowMenuItem ] ) {
return [ crTable selectedRow ] != -1;
}
if ( [ menuItem isEqual: editTaskMenuItem ] ) {
return [ crTable selectedRow ] != -1;
}
if ( [[ menuItem menu ] isEqual: contextMenu ] ) {
return [ crTable selectedRow ] != -1;
}
return YES;
}
- (NSString *)crontabForUser {
return crontabForUser;
}
- (void)setCrontabForUser: (NSString *)user {
[ crontabForUser autorelease ];
if ( user ) {
crontabForUser = [ user copy ];
//[ labelUser setStringValue: crontabForUser ];
[ toolbar setUser: crontabForUser ];
} else {
crontabForUser = nil;
//[ labelUser setStringValue: NSUserName() ];
[ toolbar setUser: NSUserName() ];
}
}
- (NSString *)suCronCommand {
return [ [ NSBundle mainBundle ] pathForResource: suCrontabResource ofType: nil ];
}