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added download feature for iOS port

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required libs: 
    * ZipArchive - Obj-C impl of zip
    * asi-http-request : http request help to assist with asynchoronous downloading of files
    * minizip : support for ZipArchive
    * 
Added default splash screen for iOS app.  (using the Wagic background to keep it neutral to module)

TODO: refine handling for iPad splash screen
    * add selection screen and input screen for location of downloadable content. (ie core files, image files, etc )
    * add support to opt out of backing up to iCloud for core files. Right now iOS will automatically backup all files under Documents folder to iCloud.  Consider only allowing player data to be backed up to iCloud.  All graphics and other assets are considered volatile.
This commit is contained in:
techdragon.nguyen@gmail.com
2011-12-11 07:40:22 +00:00
parent 071dca6b0a
commit 128c60bc2b
131 changed files with 27956 additions and 10 deletions
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/*
File: ReachabilityAppDelegate.h
Abstract: The application's controller.
Version: 2.0
Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple Inc.
("Apple") in consideration of your agreement to the following terms, and your
use, installation, modification or redistribution of this Apple software
constitutes acceptance of these terms. If you do not agree with these terms,
please do not use, install, modify or redistribute this Apple software.
In consideration of your agreement to abide by the following terms, and subject
to these terms, Apple grants you a personal, non-exclusive license, under
Apple's copyrights in this original Apple software (the "Apple Software"), to
use, reproduce, modify and redistribute the Apple Software, with or without
modifications, in source and/or binary forms; provided that if you redistribute
the Apple Software in its entirety and without modifications, you must retain
this notice and the following text and disclaimers in all such redistributions
of the Apple Software.
Neither the name, trademarks, service marks or logos of Apple Inc. may be used
to endorse or promote products derived from the Apple Software without specific
prior written permission from Apple. Except as expressly stated in this notice,
no other rights or licenses, express or implied, are granted by Apple herein,
including but not limited to any patent rights that may be infringed by your
derivative works or by other works in which the Apple Software may be
incorporated.
The Apple Software is provided by Apple on an "AS IS" basis. APPLE MAKES NO
WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED
WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE OR IN
COMBINATION WITH YOUR PRODUCTS.
IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, MODIFICATION AND/OR
DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER UNDER THEORY OF
CONTRACT, TORT (INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN IF
APPLE HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Copyright (C) 2009 Apple Inc. All Rights Reserved.
*/
#import <UIKit/UIKit.h>
@class Reachability;
@interface ReachabilityAppDelegate: NSObject {
IBOutlet UIWindow* window;
IBOutlet UIView* contentView;
IBOutlet UILabel* summaryLabel;
IBOutlet UITextField* remoteHostLabel;
IBOutlet UIImageView* remoteHostIcon;
IBOutlet UITextField* remoteHostStatusField;
IBOutlet UIImageView* internetConnectionIcon;
IBOutlet UITextField* internetConnectionStatusField;
IBOutlet UIImageView* localWiFiConnectionIcon;
IBOutlet UITextField* localWiFiConnectionStatusField;
Reachability* hostReach;
Reachability* internetReach;
Reachability* wifiReach;
}
@end

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/*
File: ReachabilityAppDelegate.m
Abstract: The application's controller.
Version: 2.0
Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple Inc.
("Apple") in consideration of your agreement to the following terms, and your
use, installation, modification or redistribution of this Apple software
constitutes acceptance of these terms. If you do not agree with these terms,
please do not use, install, modify or redistribute this Apple software.
In consideration of your agreement to abide by the following terms, and subject
to these terms, Apple grants you a personal, non-exclusive license, under
Apple's copyrights in this original Apple software (the "Apple Software"), to
use, reproduce, modify and redistribute the Apple Software, with or without
modifications, in source and/or binary forms; provided that if you redistribute
the Apple Software in its entirety and without modifications, you must retain
this notice and the following text and disclaimers in all such redistributions
of the Apple Software.
Neither the name, trademarks, service marks or logos of Apple Inc. may be used
to endorse or promote products derived from the Apple Software without specific
prior written permission from Apple. Except as expressly stated in this notice,
no other rights or licenses, express or implied, are granted by Apple herein,
including but not limited to any patent rights that may be infringed by your
derivative works or by other works in which the Apple Software may be
incorporated.
The Apple Software is provided by Apple on an "AS IS" basis. APPLE MAKES NO
WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED
WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE OR IN
COMBINATION WITH YOUR PRODUCTS.
IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, MODIFICATION AND/OR
DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER UNDER THEORY OF
CONTRACT, TORT (INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN IF
APPLE HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Copyright (C) 2009 Apple Inc. All Rights Reserved.
*/
#import "ReachabilityAppDelegate.h"
#import "Reachability.h"
@implementation ReachabilityAppDelegate
- (void) configureTextField: (UITextField*) textField imageView: (UIImageView*) imageView reachability: (Reachability*) curReach
{
NetworkStatus netStatus = [curReach currentReachabilityStatus];
BOOL connectionRequired= [curReach connectionRequired];
NSString* statusString= @"";
switch (netStatus)
{
case NotReachable:
{
statusString = @"Access Not Available";
imageView.image = [UIImage imageNamed: @"stop-32.png"] ;
//Minor interface detail- connectionRequired may return yes, even when the host is unreachable. We cover that up here...
connectionRequired= NO;
break;
}
case ReachableViaWWAN:
{
statusString = @"Reachable WWAN";
imageView.image = [UIImage imageNamed: @"WWAN5.png"];
break;
}
case ReachableViaWiFi:
{
statusString= @"Reachable WiFi";
imageView.image = [UIImage imageNamed: @"Airport.png"];
break;
}
}
if(connectionRequired)
{
statusString= [NSString stringWithFormat: @"%@, Connection Required", statusString];
}
textField.text= statusString;
}
- (void) updateInterfaceWithReachability: (Reachability*) curReach
{
if(curReach == hostReach)
{
[self configureTextField: remoteHostStatusField imageView: remoteHostIcon reachability: curReach];
NetworkStatus netStatus = [curReach currentReachabilityStatus];
BOOL connectionRequired= [curReach connectionRequired];
summaryLabel.hidden = (netStatus != ReachableViaWWAN);
NSString* baseLabel= @"";
if(connectionRequired)
{
baseLabel= @"Cellular data network is available.\n Internet traffic will be routed through it after a connection is established.";
}
else
{
baseLabel= @"Cellular data network is active.\n Internet traffic will be routed through it.";
}
summaryLabel.text= baseLabel;
}
if(curReach == internetReach)
{
[self configureTextField: internetConnectionStatusField imageView: internetConnectionIcon reachability: curReach];
}
if(curReach == wifiReach)
{
[self configureTextField: localWiFiConnectionStatusField imageView: localWiFiConnectionIcon reachability: curReach];
}
}
//Called by Reachability whenever status changes.
- (void) reachabilityChanged: (NSNotification* )note
{
Reachability* curReach = [note object];
NSParameterAssert([curReach isKindOfClass: [Reachability class]]);
[self updateInterfaceWithReachability: curReach];
}
- (void) applicationDidFinishLaunching: (UIApplication* )application
{
contentView.backgroundColor = [UIColor groupTableViewBackgroundColor];
summaryLabel.hidden = YES;
// Observe the kNetworkReachabilityChangedNotification. When that notification is posted, the
// method "reachabilityChanged" will be called.
[[NSNotificationCenter defaultCenter] addObserver: self selector: @selector(reachabilityChanged:) name: kReachabilityChangedNotification object: nil];
//Change the host name here to change the server your monitoring
remoteHostLabel.text = [NSString stringWithFormat: @"Remote Host: %@", @"www.apple.com"];
hostReach = [[Reachability reachabilityWithHostName: @"www.apple.com"] retain];
[hostReach startNotifier];
[self updateInterfaceWithReachability: hostReach];
internetReach = [[Reachability reachabilityForInternetConnection] retain];
[internetReach startNotifier];
[self updateInterfaceWithReachability: internetReach];
wifiReach = [[Reachability reachabilityForLocalWiFi] retain];
[wifiReach startNotifier];
[self updateInterfaceWithReachability: wifiReach];
[window makeKeyAndVisible];
}
@end

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projects/mtg/iOS/Reachability/Reachability 2.0.4ddg/DDG Reachability/MainWindow.xib Normal file
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<archive type="com.apple.InterfaceBuilder3.CocoaTouch.XIB" version="7.03">
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8
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//
// Prefix header for all source files of the 'Reachability' target in the 'Reachability' project
//
#ifdef __OBJC__
#import <Foundation/Foundation.h>
#import <UIKit/UIKit.h>
#endif

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Reachability
========================================================================
DESCRIPTION:
The Reachability sample application demonstrates how to use the System
Configuration framework to monitor the network state of an iPhone or
iPod touch. In particular, it demonstrates how to know when IP can be
routed and when traffic will be routed through a Wireless Wide Area
Network (WWAN) interface such as EDGE or 3G.
Note: Reachability cannot tell your application if you can connect to a
particular host, only that an interface is available that might allow a
connection, and whether that interface is the WWAN.
========================================================================
USING THE SAMPLE
Build and run the sample using Xcode. When running the iPhone Simulator,
you can exercise the application by disconnecting the Ethernet cable,
turning off AirPort, or by joining an ad-hoc local Wi-Fi network.
By default, the application uses www.apple.com for its remote host. You
can change the host it uses in ReachabilityAppDelegate.m by modifying
the call to [Reachability reachabilityWithHostName] in
-applicationDidFinishLaunching.
IMPORTANT: Reachability must use DNS to resolve the host name before it
can determine the Reachability of that host, and this may take time on
certain network connections. Because of this, the API will return
NotReachable until name resolution has completed. This delay may be
visible in the interface on some networks.
The Reachability sample demonstrates the asynchronous use of the
SCNetworkReachability API. You can use the API synchronously, but do not
issue a synchronous check by hostName on the main thread. If the device
cannot reach a DNS server or is on a slow network, a synchronous call to
the SCNetworkReachabilityGetFlags function can block for up to 30
seconds trying to resolve the hostName. If this happens on the main
thread, the application watchdog will kill the application after 20
seconds of inactivity.
SCNetworkReachability API's do not currently provide a means to detect
support for GameKit Peer To Peer networking over BlueTooth.
========================================================================
BUILD REQUIREMENTS
iPhone OS 3.0
========================================================================
RUNTIME REQUIREMENTS
iPhone OS 3.0
========================================================================
PACKAGING LIST
Reachability.h Reachability.m -Basic demonstration of how to use the
SystemConfiguration Reachablity APIs.
ReachabilityAppDelegate.h ReachabilityAppDelegate.m -The application's
controller.
========================================================================
CHANGES FROM PREVIOUS VERSIONS
Version 2.0
-Greatly simplified UI code.
-Rewrote Reachability object to be fully asychronous and simplify
monitoring of multiple SCNetworkReachabilityRefs.
-Added code showing how to monitor wether a connection will be required.
Version 1.5
- Updated for and tested with iPhone OS 2.0. First public release.
Version 1.4
- Updated for Beta 7.
Version 1.3
- Updated for Beta 6. - Added LSRequiresIPhoneOS key to Info.plist.
Version 1.2
- Updated for Beta 4. Added code signing.
Version 1.1
- Updated for Beta 3 to use a nib file.
Copyright (C)2009 Apple Inc. All rights reserved.

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//
// main.m
// Reachability
//
// Created by Andrew Donoho on 2009/12/28.
// Copyright Donoho Design Group, L.L.C. 2009. All rights reserved.
//
#import <UIKit/UIKit.h>
int main(int argc, char *argv[]) {
NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
int retVal = UIApplicationMain(argc, argv, nil, nil);
[pool release];
return retVal;
}

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/*
File: Reachability.h
Abstract: Basic demonstration of how to use the SystemConfiguration Reachablity APIs.
Version: 2.0.4ddg
*/
/*
Significant additions made by Andrew W. Donoho, August 11, 2009.
This is a derived work of Apple's Reachability v2.0 class.
The below license is the new BSD license with the OSI recommended personalizations.
<http://www.opensource.org/licenses/bsd-license.php>
Extensions Copyright (C) 2009 Donoho Design Group, LLC. All Rights Reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
* 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.
* Neither the name of Andrew W. Donoho nor Donoho Design Group, L.L.C.
may be used to endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY DONOHO DESIGN GROUP, L.L.C. "AS IS" AND ANY
EXPRESS 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 COPYRIGHT HOLDER 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.
*/
/*
Apple's Original License on Reachability v2.0
Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple Inc.
("Apple") in consideration of your agreement to the following terms, and your
use, installation, modification or redistribution of this Apple software
constitutes acceptance of these terms. If you do not agree with these terms,
please do not use, install, modify or redistribute this Apple software.
In consideration of your agreement to abide by the following terms, and subject
to these terms, Apple grants you a personal, non-exclusive license, under
Apple's copyrights in this original Apple software (the "Apple Software"), to
use, reproduce, modify and redistribute the Apple Software, with or without
modifications, in source and/or binary forms; provided that if you redistribute
the Apple Software in its entirety and without modifications, you must retain
this notice and the following text and disclaimers in all such redistributions
of the Apple Software.
Neither the name, trademarks, service marks or logos of Apple Inc. may be used
to endorse or promote products derived from the Apple Software without specific
prior written permission from Apple. Except as expressly stated in this notice,
no other rights or licenses, express or implied, are granted by Apple herein,
including but not limited to any patent rights that may be infringed by your
derivative works or by other works in which the Apple Software may be
incorporated.
The Apple Software is provided by Apple on an "AS IS" basis. APPLE MAKES NO
WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED
WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE OR IN
COMBINATION WITH YOUR PRODUCTS.
IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, MODIFICATION AND/OR
DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER UNDER THEORY OF
CONTRACT, TORT (INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN IF
APPLE HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Copyright (C) 2009 Apple Inc. All Rights Reserved.
*/
/*
DDG extensions include:
Each reachability object now has a copy of the key used to store it in a
dictionary. This allows each observer to quickly determine if the event is
important to them.
-currentReachabilityStatus also has a significantly different decision criteria than
Apple's code.
A multiple convenience test methods have been added.
*/
#import <Foundation/Foundation.h>
#import <SystemConfiguration/SystemConfiguration.h>
#define USE_DDG_EXTENSIONS 1 // Use DDG's Extensions to test network criteria.
// Since NSAssert and NSCAssert are used in this code,
// I recommend you set NS_BLOCK_ASSERTIONS=1 in the release versions of your projects.
enum {
// DDG NetworkStatus Constant Names.
kNotReachable = 0, // Apple's code depends upon 'NotReachable' being the same value as 'NO'.
kReachableViaWWAN, // Switched order from Apple's enum. WWAN is active before WiFi.
kReachableViaWiFi
};
typedef uint32_t NetworkStatus;
enum {
// Apple NetworkStatus Constant Names.
NotReachable = kNotReachable,
ReachableViaWiFi = kReachableViaWiFi,
ReachableViaWWAN = kReachableViaWWAN
};
extern NSString *const kInternetConnection;
extern NSString *const kLocalWiFiConnection;
extern NSString *const kReachabilityChangedNotification;
@interface Reachability: NSObject {
@private
NSString *key_;
SCNetworkReachabilityRef reachabilityRef;
}
@property (copy) NSString *key; // Atomic because network operations are asynchronous.
// Designated Initializer.
- (Reachability *) initWithReachabilityRef: (SCNetworkReachabilityRef) ref;
// Use to check the reachability of a particular host name.
+ (Reachability *) reachabilityWithHostName: (NSString*) hostName;
// Use to check the reachability of a particular IP address.
+ (Reachability *) reachabilityWithAddress: (const struct sockaddr_in*) hostAddress;
// Use to check whether the default route is available.
// Should be used to, at minimum, establish network connectivity.
+ (Reachability *) reachabilityForInternetConnection;
// Use to check whether a local wifi connection is available.
+ (Reachability *) reachabilityForLocalWiFi;
//Start listening for reachability notifications on the current run loop.
- (BOOL) startNotifier;
- (void) stopNotifier;
// Comparison routines to enable choosing actions in a notification.
- (BOOL) isEqual: (Reachability *) r;
// These are the status tests.
- (NetworkStatus) currentReachabilityStatus;
// The main direct test of reachability.
- (BOOL) isReachable;
// WWAN may be available, but not active until a connection has been established.
// WiFi may require a connection for VPN on Demand.
- (BOOL) isConnectionRequired; // Identical DDG variant.
- (BOOL) connectionRequired; // Apple's routine.
// Dynamic, on demand connection?
- (BOOL) isConnectionOnDemand;
// Is user intervention required?
- (BOOL) isInterventionRequired;
// Routines for specific connection testing by your app.
- (BOOL) isReachableViaWWAN;
- (BOOL) isReachableViaWiFi;
- (SCNetworkReachabilityFlags) reachabilityFlags;
@end

814
projects/mtg/iOS/Reachability/Reachability 2.0.4ddg/Reachability/Reachability.m Normal file
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/*
File: Reachability.m
Abstract: Basic demonstration of how to use the SystemConfiguration Reachablity APIs.
Version: 2.0.4ddg
*/
/*
Significant additions made by Andrew W. Donoho, August 11, 2009.
This is a derived work of Apple's Reachability v2.0 class.
The below license is the new BSD license with the OSI recommended personalizations.
<http://www.opensource.org/licenses/bsd-license.php>
Extensions Copyright (C) 2009 Donoho Design Group, LLC. All Rights Reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
* 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.
* Neither the name of Andrew W. Donoho nor Donoho Design Group, L.L.C.
may be used to endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY DONOHO DESIGN GROUP, L.L.C. "AS IS" AND ANY
EXPRESS 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 COPYRIGHT HOLDER 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.
*/
/*
Apple's Original License on Reachability v2.0
Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple Inc.
("Apple") in consideration of your agreement to the following terms, and your
use, installation, modification or redistribution of this Apple software
constitutes acceptance of these terms. If you do not agree with these terms,
please do not use, install, modify or redistribute this Apple software.
In consideration of your agreement to abide by the following terms, and subject
to these terms, Apple grants you a personal, non-exclusive license, under
Apple's copyrights in this original Apple software (the "Apple Software"), to
use, reproduce, modify and redistribute the Apple Software, with or without
modifications, in source and/or binary forms; provided that if you redistribute
the Apple Software in its entirety and without modifications, you must retain
this notice and the following text and disclaimers in all such redistributions
of the Apple Software.
Neither the name, trademarks, service marks or logos of Apple Inc. may be used
to endorse or promote products derived from the Apple Software without specific
prior written permission from Apple. Except as expressly stated in this notice,
no other rights or licenses, express or implied, are granted by Apple herein,
including but not limited to any patent rights that may be infringed by your
derivative works or by other works in which the Apple Software may be
incorporated.
The Apple Software is provided by Apple on an "AS IS" basis. APPLE MAKES NO
WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED
WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE OR IN
COMBINATION WITH YOUR PRODUCTS.
IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, MODIFICATION AND/OR
DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER UNDER THEORY OF
CONTRACT, TORT (INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN IF
APPLE HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Copyright (C) 2009 Apple Inc. All Rights Reserved.
*/
/*
Each reachability object now has a copy of the key used to store it in a dictionary.
This allows each observer to quickly determine if the event is important to them.
*/
#import <sys/socket.h>
#import <netinet/in.h>
#import <netinet6/in6.h>
#import <arpa/inet.h>
#import <ifaddrs.h>
#import <netdb.h>
#import <CoreFoundation/CoreFoundation.h>
#import "Reachability.h"
NSString *const kInternetConnection = @"InternetConnection";
NSString *const kLocalWiFiConnection = @"LocalWiFiConnection";
NSString *const kReachabilityChangedNotification = @"NetworkReachabilityChangedNotification";
#define CLASS_DEBUG 1 // Turn on logReachabilityFlags. Must also have a project wide defined DEBUG.
#if (defined DEBUG && defined CLASS_DEBUG)
#define logReachabilityFlags(flags) (logReachabilityFlags_(__PRETTY_FUNCTION__, __LINE__, flags))
static NSString *reachabilityFlags_(SCNetworkReachabilityFlags flags) {
#if (__IPHONE_OS_VERSION_MIN_REQUIRED >= 30000) // Apple advises you to use the magic number instead of a symbol.
return [NSString stringWithFormat:@"Reachability Flags: %c%c %c%c%c%c%c%c%c",
(flags & kSCNetworkReachabilityFlagsIsWWAN) ? 'W' : '-',
(flags & kSCNetworkReachabilityFlagsReachable) ? 'R' : '-',
(flags & kSCNetworkReachabilityFlagsConnectionRequired) ? 'c' : '-',
(flags & kSCNetworkReachabilityFlagsTransientConnection) ? 't' : '-',
(flags & kSCNetworkReachabilityFlagsInterventionRequired) ? 'i' : '-',
(flags & kSCNetworkReachabilityFlagsConnectionOnTraffic) ? 'C' : '-',
(flags & kSCNetworkReachabilityFlagsConnectionOnDemand) ? 'D' : '-',
(flags & kSCNetworkReachabilityFlagsIsLocalAddress) ? 'l' : '-',
(flags & kSCNetworkReachabilityFlagsIsDirect) ? 'd' : '-'];
#else
// Compile out the v3.0 features for v2.2.1 deployment.
return [NSString stringWithFormat:@"Reachability Flags: %c%c %c%c%c%c%c%c",
(flags & kSCNetworkReachabilityFlagsIsWWAN) ? 'W' : '-',
(flags & kSCNetworkReachabilityFlagsReachable) ? 'R' : '-',
(flags & kSCNetworkReachabilityFlagsConnectionRequired) ? 'c' : '-',
(flags & kSCNetworkReachabilityFlagsTransientConnection) ? 't' : '-',
(flags & kSCNetworkReachabilityFlagsInterventionRequired) ? 'i' : '-',
// v3 kSCNetworkReachabilityFlagsConnectionOnTraffic == v2 kSCNetworkReachabilityFlagsConnectionAutomatic
(flags & kSCNetworkReachabilityFlagsConnectionAutomatic) ? 'C' : '-',
// (flags & kSCNetworkReachabilityFlagsConnectionOnDemand) ? 'D' : '-', // No v2 equivalent.
(flags & kSCNetworkReachabilityFlagsIsLocalAddress) ? 'l' : '-',
(flags & kSCNetworkReachabilityFlagsIsDirect) ? 'd' : '-'];
#endif
} // reachabilityFlags_()
static void logReachabilityFlags_(const char *name, int line, SCNetworkReachabilityFlags flags) {
NSLog(@"%s (%d) \n\t%@", name, line, reachabilityFlags_(flags));
} // logReachabilityFlags_()
#define logNetworkStatus(status) (logNetworkStatus_(__PRETTY_FUNCTION__, __LINE__, status))
static void logNetworkStatus_(const char *name, int line, NetworkStatus status) {
NSString *statusString = nil;
switch (status) {
case kNotReachable:
statusString = [NSString stringWithString: @"Not Reachable"];
break;
case kReachableViaWWAN:
statusString = [NSString stringWithString: @"Reachable via WWAN"];
break;
case kReachableViaWiFi:
statusString = [NSString stringWithString: @"Reachable via WiFi"];
break;
}
NSLog(@"%s (%d) \n\tNetwork Status: %@", name, line, statusString);
} // logNetworkStatus_()
#else
#define logReachabilityFlags(flags)
#define logNetworkStatus(status)
#endif
@interface Reachability (private)
- (NetworkStatus) networkStatusForFlags: (SCNetworkReachabilityFlags) flags;
@end
@implementation Reachability
@synthesize key = key_;
// Preclude direct access to ivars.
+ (BOOL) accessInstanceVariablesDirectly {
return NO;
} // accessInstanceVariablesDirectly
- (void) dealloc {
[self stopNotifier];
if(reachabilityRef) {
CFRelease(reachabilityRef); reachabilityRef = NULL;
}
self.key = nil;
[super dealloc];
} // dealloc
- (Reachability *) initWithReachabilityRef: (SCNetworkReachabilityRef) ref {
if (self = [super init]) {
reachabilityRef = ref;
}
return self;
} // initWithReachabilityRef:
#if (defined DEBUG && defined CLASS_DEBUG)
- (NSString *) description {
NSAssert(reachabilityRef, @"-description called with NULL reachabilityRef");
SCNetworkReachabilityFlags flags = 0;
SCNetworkReachabilityGetFlags(reachabilityRef, &flags);
return [NSString stringWithFormat: @"%@\n\t%@", self.key, reachabilityFlags_(flags)];
} // description
#endif
#pragma mark -
#pragma mark Notification Management Methods
//Start listening for reachability notifications on the current run loop
static void ReachabilityCallback(SCNetworkReachabilityRef target, SCNetworkReachabilityFlags flags, void* info) {
#pragma unused (target, flags)
NSCAssert(info, @"info was NULL in ReachabilityCallback");
NSCAssert([(NSObject*) info isKindOfClass: [Reachability class]], @"info was the wrong class in ReachabilityCallback");
//We're on the main RunLoop, so an NSAutoreleasePool is not necessary, but is added defensively
// in case someone uses the Reachablity object in a different thread.
NSAutoreleasePool* pool = [NSAutoreleasePool new];
// Post a notification to notify the client that the network reachability changed.
[[NSNotificationCenter defaultCenter] postNotificationName: kReachabilityChangedNotification
object: (Reachability *) info];
[pool release];
} // ReachabilityCallback()
- (BOOL) startNotifier {
SCNetworkReachabilityContext context = {0, self, NULL, NULL, NULL};
if(SCNetworkReachabilitySetCallback(reachabilityRef, ReachabilityCallback, &context)) {
if(SCNetworkReachabilityScheduleWithRunLoop(reachabilityRef, CFRunLoopGetCurrent(), kCFRunLoopDefaultMode)) {
return YES;
}
}
return NO;
} // startNotifier
- (void) stopNotifier {
if(reachabilityRef) {
SCNetworkReachabilityUnscheduleFromRunLoop(reachabilityRef, CFRunLoopGetCurrent(), kCFRunLoopDefaultMode);
}
} // stopNotifier
- (BOOL) isEqual: (Reachability *) r {
return [r.key isEqualToString: self.key];
} // isEqual:
#pragma mark -
#pragma mark Reachability Allocation Methods
+ (Reachability *) reachabilityWithHostName: (NSString *) hostName {
SCNetworkReachabilityRef ref = SCNetworkReachabilityCreateWithName(NULL, [hostName UTF8String]);
if (ref) {
Reachability *r = [[[self alloc] initWithReachabilityRef: ref] autorelease];
r.key = hostName;
return r;
}
return nil;
} // reachabilityWithHostName
+ (NSString *) makeAddressKey: (in_addr_t) addr {
// addr is assumed to be in network byte order.
static const int highShift = 24;
static const int highMidShift = 16;
static const int lowMidShift = 8;
static const in_addr_t mask = 0x000000ff;
addr = ntohl(addr);
return [NSString stringWithFormat: @"%d.%d.%d.%d",
(addr >> highShift) & mask,
(addr >> highMidShift) & mask,
(addr >> lowMidShift) & mask,
addr & mask];
} // makeAddressKey:
+ (Reachability *) reachabilityWithAddress: (const struct sockaddr_in *) hostAddress {
SCNetworkReachabilityRef ref = SCNetworkReachabilityCreateWithAddress(kCFAllocatorDefault, (const struct sockaddr*)hostAddress);
if (ref) {
Reachability *r = [[[self alloc] initWithReachabilityRef: ref] autorelease];
r.key = [self makeAddressKey: hostAddress->sin_addr.s_addr];
return r;
}
return nil;
} // reachabilityWithAddress
+ (Reachability *) reachabilityForInternetConnection {
struct sockaddr_in zeroAddress;
bzero(&zeroAddress, sizeof(zeroAddress));
zeroAddress.sin_len = sizeof(zeroAddress);
zeroAddress.sin_family = AF_INET;
Reachability *r = [self reachabilityWithAddress: &zeroAddress];
r.key = kInternetConnection;
return r;
} // reachabilityForInternetConnection
+ (Reachability *) reachabilityForLocalWiFi {
struct sockaddr_in localWifiAddress;
bzero(&localWifiAddress, sizeof(localWifiAddress));
localWifiAddress.sin_len = sizeof(localWifiAddress);
localWifiAddress.sin_family = AF_INET;
// IN_LINKLOCALNETNUM is defined in <netinet/in.h> as 169.254.0.0
localWifiAddress.sin_addr.s_addr = htonl(IN_LINKLOCALNETNUM);
Reachability *r = [self reachabilityWithAddress: &localWifiAddress];
r.key = kLocalWiFiConnection;
return r;
} // reachabilityForLocalWiFi
#pragma mark -
#pragma mark Network Flag Handling Methods
#if USE_DDG_EXTENSIONS
//
// iPhone condition codes as reported by a 3GS running iPhone OS v3.0.
// Airplane Mode turned on: Reachability Flag Status: -- -------
// WWAN Active: Reachability Flag Status: WR -t-----
// WWAN Connection required: Reachability Flag Status: WR ct-----
// WiFi turned on: Reachability Flag Status: -R ------- Reachable.
// Local WiFi turned on: Reachability Flag Status: -R xxxxxxd Reachable.
// WiFi turned on: Reachability Flag Status: -R ct----- Connection down. (Non-intuitive, empirically determined answer.)
const SCNetworkReachabilityFlags kConnectionDown = kSCNetworkReachabilityFlagsConnectionRequired |
kSCNetworkReachabilityFlagsTransientConnection;
// WiFi turned on: Reachability Flag Status: -R ct-i--- Reachable but it will require user intervention (e.g. enter a WiFi password).
// WiFi turned on: Reachability Flag Status: -R -t----- Reachable via VPN.
//
// In the below method, an 'x' in the flag status means I don't care about its value.
//
// This method differs from Apple's by testing explicitly for empirically observed values.
// This gives me more confidence in it's correct behavior. Apple's code covers more cases
// than mine. My code covers the cases that occur.
//
- (NetworkStatus) networkStatusForFlags: (SCNetworkReachabilityFlags) flags {
if (flags & kSCNetworkReachabilityFlagsReachable) {
// Local WiFi -- Test derived from Apple's code: -localWiFiStatusForFlags:.
if (self.key == kLocalWiFiConnection) {
// Reachability Flag Status: xR xxxxxxd Reachable.
return (flags & kSCNetworkReachabilityFlagsIsDirect) ? kReachableViaWiFi : kNotReachable;
}
// Observed WWAN Values:
// WWAN Active: Reachability Flag Status: WR -t-----
// WWAN Connection required: Reachability Flag Status: WR ct-----
//
// Test Value: Reachability Flag Status: WR xxxxxxx
if (flags & kSCNetworkReachabilityFlagsIsWWAN) { return kReachableViaWWAN; }
// Clear moot bits.
flags &= ~kSCNetworkReachabilityFlagsReachable;
flags &= ~kSCNetworkReachabilityFlagsIsDirect;
flags &= ~kSCNetworkReachabilityFlagsIsLocalAddress; // kInternetConnection is local.
// Reachability Flag Status: -R ct---xx Connection down.
if (flags == kConnectionDown) { return kNotReachable; }
// Reachability Flag Status: -R -t---xx Reachable. WiFi + VPN(is up) (Thank you Ling Wang)
if (flags & kSCNetworkReachabilityFlagsTransientConnection) { return kReachableViaWiFi; }
// Reachability Flag Status: -R -----xx Reachable.
if (flags == 0) { return kReachableViaWiFi; }
// Apple's code tests for dynamic connection types here. I don't.
// If a connection is required, regardless of whether it is on demand or not, it is a WiFi connection.
// If you care whether a connection needs to be brought up, use -isConnectionRequired.
// If you care about whether user intervention is necessary, use -isInterventionRequired.
// If you care about dynamically establishing the connection, use -isConnectionIsOnDemand.
// Reachability Flag Status: -R cxxxxxx Reachable.
if (flags & kSCNetworkReachabilityFlagsConnectionRequired) { return kReachableViaWiFi; }
// Required by the compiler. Should never get here. Default to not connected.
#if (defined DEBUG && defined CLASS_DEBUG)
NSAssert1(NO, @"Uncaught reachability test. Flags: %@", reachabilityFlags_(flags));
#endif
return kNotReachable;
}
// Reachability Flag Status: x- xxxxxxx
return kNotReachable;
} // networkStatusForFlags:
- (NetworkStatus) currentReachabilityStatus {
NSAssert(reachabilityRef, @"currentReachabilityStatus called with NULL reachabilityRef");
SCNetworkReachabilityFlags flags = 0;
NetworkStatus status = kNotReachable;
if (SCNetworkReachabilityGetFlags(reachabilityRef, &flags)) {
// logReachabilityFlags(flags);
status = [self networkStatusForFlags: flags];
return status;
}
return kNotReachable;
} // currentReachabilityStatus
- (BOOL) isReachable {
NSAssert(reachabilityRef, @"isReachable called with NULL reachabilityRef");
SCNetworkReachabilityFlags flags = 0;
NetworkStatus status = kNotReachable;
if (SCNetworkReachabilityGetFlags(reachabilityRef, &flags)) {
// logReachabilityFlags(flags);
status = [self networkStatusForFlags: flags];
// logNetworkStatus(status);
return (kNotReachable != status);
}
return NO;
} // isReachable
- (BOOL) isConnectionRequired {
NSAssert(reachabilityRef, @"isConnectionRequired called with NULL reachabilityRef");
SCNetworkReachabilityFlags flags;
if (SCNetworkReachabilityGetFlags(reachabilityRef, &flags)) {
logReachabilityFlags(flags);
return (flags & kSCNetworkReachabilityFlagsConnectionRequired);
}
return NO;
} // isConnectionRequired
- (BOOL) connectionRequired {
return [self isConnectionRequired];
} // connectionRequired
#endif
#if (__IPHONE_OS_VERSION_MIN_REQUIRED >= 30000)
static const SCNetworkReachabilityFlags kOnDemandConnection = kSCNetworkReachabilityFlagsConnectionOnTraffic |
kSCNetworkReachabilityFlagsConnectionOnDemand;
#else
static const SCNetworkReachabilityFlags kOnDemandConnection = kSCNetworkReachabilityFlagsConnectionAutomatic;
#endif
- (BOOL) isConnectionOnDemand {
NSAssert(reachabilityRef, @"isConnectionIsOnDemand called with NULL reachabilityRef");
SCNetworkReachabilityFlags flags;
if (SCNetworkReachabilityGetFlags(reachabilityRef, &flags)) {
logReachabilityFlags(flags);
return ((flags & kSCNetworkReachabilityFlagsConnectionRequired) &&
(flags & kOnDemandConnection));
}
return NO;
} // isConnectionOnDemand
- (BOOL) isInterventionRequired {
NSAssert(reachabilityRef, @"isInterventionRequired called with NULL reachabilityRef");
SCNetworkReachabilityFlags flags;
if (SCNetworkReachabilityGetFlags(reachabilityRef, &flags)) {
logReachabilityFlags(flags);
return ((flags & kSCNetworkReachabilityFlagsConnectionRequired) &&
(flags & kSCNetworkReachabilityFlagsInterventionRequired));
}
return NO;
} // isInterventionRequired
- (BOOL) isReachableViaWWAN {
NSAssert(reachabilityRef, @"isReachableViaWWAN called with NULL reachabilityRef");
SCNetworkReachabilityFlags flags = 0;
NetworkStatus status = kNotReachable;
if (SCNetworkReachabilityGetFlags(reachabilityRef, &flags)) {
logReachabilityFlags(flags);
status = [self networkStatusForFlags: flags];
return (kReachableViaWWAN == status);
}
return NO;
} // isReachableViaWWAN
- (BOOL) isReachableViaWiFi {
NSAssert(reachabilityRef, @"isReachableViaWiFi called with NULL reachabilityRef");
SCNetworkReachabilityFlags flags = 0;
NetworkStatus status = kNotReachable;
if (SCNetworkReachabilityGetFlags(reachabilityRef, &flags)) {
logReachabilityFlags(flags);
status = [self networkStatusForFlags: flags];
return (kReachableViaWiFi == status);
}
return NO;
} // isReachableViaWiFi
- (SCNetworkReachabilityFlags) reachabilityFlags {
NSAssert(reachabilityRef, @"reachabilityFlags called with NULL reachabilityRef");
SCNetworkReachabilityFlags flags = 0;
if (SCNetworkReachabilityGetFlags(reachabilityRef, &flags)) {
logReachabilityFlags(flags);
return flags;
}
return 0;
} // reachabilityFlags
#pragma mark -
#pragma mark Apple's Network Flag Handling Methods
#if !USE_DDG_EXTENSIONS
/*
*
* Apple's Network Status testing code.
* The only changes that have been made are to use the new logReachabilityFlags macro and
* test for local WiFi via the key instead of Apple's boolean. Also, Apple's code was for v3.0 only
* iPhone OS. v2.2.1 and earlier conditional compiling is turned on. Hence, to mirror Apple's behavior,
* set your Base SDK to v3.0 or higher.
*
*/
- (NetworkStatus) localWiFiStatusForFlags: (SCNetworkReachabilityFlags) flags
{
logReachabilityFlags(flags);
BOOL retVal = NotReachable;
if((flags & kSCNetworkReachabilityFlagsReachable) && (flags & kSCNetworkReachabilityFlagsIsDirect))
{
retVal = ReachableViaWiFi;
}
return retVal;
}
- (NetworkStatus) networkStatusForFlags: (SCNetworkReachabilityFlags) flags
{
logReachabilityFlags(flags);
if (!(flags & kSCNetworkReachabilityFlagsReachable))
{
// if target host is not reachable
return NotReachable;
}
BOOL retVal = NotReachable;
if (!(flags & kSCNetworkReachabilityFlagsConnectionRequired))
{
// if target host is reachable and no connection is required
// then we'll assume (for now) that your on Wi-Fi
retVal = ReachableViaWiFi;
}
#if (__IPHONE_OS_VERSION_MIN_REQUIRED >= 30000) // Apple advises you to use the magic number instead of a symbol.
if ((flags & kSCNetworkReachabilityFlagsConnectionOnDemand) ||
(flags & kSCNetworkReachabilityFlagsConnectionOnTraffic))
#else
if (flags & kSCNetworkReachabilityFlagsConnectionAutomatic)
#endif
{
// ... and the connection is on-demand (or on-traffic) if the
// calling application is using the CFSocketStream or higher APIs
if (!(flags & kSCNetworkReachabilityFlagsInterventionRequired))
{
// ... and no [user] intervention is needed
retVal = ReachableViaWiFi;
}
}
if (flags & kSCNetworkReachabilityFlagsIsWWAN)
{
// ... but WWAN connections are OK if the calling application
// is using the CFNetwork (CFSocketStream?) APIs.
retVal = ReachableViaWWAN;
}
return retVal;
}
- (NetworkStatus) currentReachabilityStatus
{
NSAssert(reachabilityRef, @"currentReachabilityStatus called with NULL reachabilityRef");
NetworkStatus retVal = NotReachable;
SCNetworkReachabilityFlags flags;
if (SCNetworkReachabilityGetFlags(reachabilityRef, &flags))
{
if(self.key == kLocalWiFiConnection)
{
retVal = [self localWiFiStatusForFlags: flags];
}
else
{
retVal = [self networkStatusForFlags: flags];
}
}
return retVal;
}
- (BOOL) isReachable {
NSAssert(reachabilityRef, @"isReachable called with NULL reachabilityRef");
SCNetworkReachabilityFlags flags = 0;
NetworkStatus status = kNotReachable;
if (SCNetworkReachabilityGetFlags(reachabilityRef, &flags)) {
logReachabilityFlags(flags);
if(self.key == kLocalWiFiConnection) {
status = [self localWiFiStatusForFlags: flags];
} else {
status = [self networkStatusForFlags: flags];
}
return (kNotReachable != status);
}
return NO;
} // isReachable
- (BOOL) isConnectionRequired {
return [self connectionRequired];
} // isConnectionRequired
- (BOOL) connectionRequired {
NSAssert(reachabilityRef, @"connectionRequired called with NULL reachabilityRef");
SCNetworkReachabilityFlags flags;
if (SCNetworkReachabilityGetFlags(reachabilityRef, &flags)) {
logReachabilityFlags(flags);
return (flags & kSCNetworkReachabilityFlagsConnectionRequired);
}
return NO;
} // connectionRequired
#endif
@end

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