Force version.sh to output /something/, always.

[safemode-ios.git] / MobileSafety.mm

diff --git a/MobileSafety.mm b/MobileSafety.mm
index af17ccfd0951476310b6cdc51e12f48a0820a5a5..3510a7fc75ba2d58caa547211d65d2b6b8d09bc2 100644 (file)
--- a/MobileSafety.mm
+++ b/MobileSafety.mm
@@ -1,60 +1,93 @@
-/* Cydia Substrate - Meta-Library Insert for iPhoneOS
- * Copyright (C) 2008  Jay Freeman (saurik)
+/* Cydia Substrate - Powerful Code Insertion Platform
+ * Copyright (C) 2008-2011  Jay Freeman (saurik)

 */
 
 */
 

+/* GNU Lesser General Public License, Version 3 {{{ */

 /*
 /*

- *        Redistribution and use in source and binary
- * forms, with or without modification, are permitted
- * provided that the following conditions are met:
+ * Substrate is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU Lesser General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.

  *
  *

- * 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. The name of the author may not be used to endorse
- *    or promote products derived from this software
- *    without specific prior written permission.
+ * Substrate is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
+ * License for more details.

  *
  *

- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
-*/
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Substrate.  If not, see <http://www.gnu.org/licenses/>.
+**/
+/* }}} */
+
+%apt Package: com.saurik.substrate.safemode
+%apt Author: Jay Freeman (saurik) <saurik@saurik.com>
+
+%apt Name: Substrate Safe Mode
+%apt Description: safe mode safety extension (safe)
+
+%apt Depends: mobilesubstrate (>= 0.9.3367+38)
+
+%fflag 1
+%fflag 2
+
+%bundle com.apple.springboard
+
+%flag -framework Foundation
+%flag -framework UIKit

 
 #import <CoreFoundation/CoreFoundation.h>
 #import <Foundation/Foundation.h>
 #import <CoreGraphics/CGGeometry.h>
 #import <UIKit/UIKit.h>
 
 
 #import <CoreFoundation/CoreFoundation.h>
 #import <Foundation/Foundation.h>
 #import <CoreGraphics/CGGeometry.h>
 #import <UIKit/UIKit.h>
 

-#import <SpringBoard/SBAlertItem.h>
-#import <SpringBoard/SBAlertItemsController.h>
-#import <SpringBoard/SBContentLayer.h>
-#import <SpringBoard/SBStatusBarController.h>
-#import <SpringBoard/SBStatusBarTimeView.h>
+#include "CydiaSubstrate.h"

 
 

-#include <substrate.h>
+MSClassHook(UIStatusBar)

 
 

-@protocol MobileSubstrate
-- (id) ms$initWithSize:(CGSize)size;
-- (int) ms$maxIconColumns;
-@end
+MSClassHook(UIImage)
+MSMetaClassHook(UIImage)
+
+MSClassHook(AAAccountManager)
+MSMetaClassHook(AAAccountManager)
+
+MSClassHook(BBSectionInfo)
+
+MSClassHook(SBAlertItemsController)
+MSClassHook(SBButtonBar)
+MSClassHook(SBIconController)
+MSClassHook(SBStatusBar)
+MSClassHook(SBStatusBarDataManager)
+MSClassHook(SBStatusBarTimeView)
+MSClassHook(SBUIController)

 
 Class $SafeModeAlertItem;
 
 Class $SafeModeAlertItem;

-Class $SBAlertItemsController;
+
+@interface SBAlertItem : NSObject {
+}
+- (UIAlertView *) alertSheet;
+- (void) dismiss;
+@end
+
+@interface SBAlertItemsController : NSObject {
+}
++ (SBAlertItemsController *) sharedInstance;
+- (void) activateAlertItem:(SBAlertItem *)item;
+@end
+
+@interface SBStatusBarTimeView : UIView {
+}
+- (id) textFont;
+@end
+
+@interface UIApplication (CydiaSubstrate)
+- (void) applicationOpenURL:(id)url;
+@end
+
+@interface UIAlertView (CydiaSubstrate)
+- (void) setForceHorizontalButtonsLayout:(BOOL)force;
+- (void) setBodyText:(NSString *)body;
+- (void) setNumberOfRows:(NSInteger)rows;
+@end

 
 void SafeModeAlertItem$alertSheet$buttonClicked$(id self, SEL sel, id sheet, int button) {
     switch (button) {
 
 void SafeModeAlertItem$alertSheet$buttonClicked$(id self, SEL sel, id sheet, int button) {
     switch (button) {


@@ -62,11 +95,12 @@ void SafeModeAlertItem$alertSheet$buttonClicked$(id self, SEL sel, id sheet, int
         break;
 
         case 2:
         break;
 
         case 2:

+            // XXX: there are better ways of restarting SpringBoard that would actually save state

             exit(0);
         break;
 
         case 3:
             exit(0);
         break;
 
         case 3:

-            [UIApp applicationOpenURL:[NSURL URLWithString:@"http://cydia.saurik.com/safemode/"] asPanel:NO];
+            [[UIApplication sharedApplication] applicationOpenURL:[NSURL URLWithString:@"http://cydia.saurik.com/safemode/"]];

         break;
     }
 
         break;
     }
 


@@ -74,13 +108,17 @@ void SafeModeAlertItem$alertSheet$buttonClicked$(id self, SEL sel, id sheet, int
 }
 
 void SafeModeAlertItem$configure$requirePasscodeForActions$(id self, SEL sel, BOOL configure, BOOL require) {
 }
 
 void SafeModeAlertItem$configure$requirePasscodeForActions$(id self, SEL sel, BOOL configure, BOOL require) {

-    UIModalView *sheet([self alertSheet]);
+    UIAlertView *sheet([self alertSheet]);
+

     [sheet setDelegate:self];
     [sheet setDelegate:self];

-    [sheet setBodyText:@"We apologize for the inconvenience, but SpringBoard has just crashed.\n\nA recent software installation, upgrade, or removal might have been the cause of this.\n\nYour device is now running in Safe Mode. All extensions that support this safety system are disabled.\n\nReboot (or restart SpringBoard) to return to the normal mode. To return to this dialog touch the status bar."];
+    [sheet setBodyText:@"We apologize for the inconvenience, but SpringBoard has just crashed.\n\nMobileSubstrate /did not/ cause this problem: it has protected you from it.\n\nYour device is now running in Safe Mode. All extensions that support this safety system are disabled.\n\nReboot (or restart SpringBoard) to return to the normal mode. To return to this dialog touch the status bar.\n\nTap \"Help\" below for more tips."];

     [sheet addButtonWithTitle:@"OK"];
     [sheet addButtonWithTitle:@"Restart"];
     [sheet addButtonWithTitle:@"Help"];
     [sheet setNumberOfRows:1];
     [sheet addButtonWithTitle:@"OK"];
     [sheet addButtonWithTitle:@"Restart"];
     [sheet addButtonWithTitle:@"Help"];
     [sheet setNumberOfRows:1];

+
+    if ([sheet respondsToSelector:@selector(setForceHorizontalButtonsLayout:)])
+        [sheet setForceHorizontalButtonsLayout:YES];

 }
 
 void SafeModeAlertItem$performUnlockAction(id self, SEL sel) {
 }
 
 void SafeModeAlertItem$performUnlockAction(id self, SEL sel) {


@@ -102,26 +140,89 @@ static void MSAlert() {
     }
 
     if ($SBAlertItemsController != nil)
     }
 
     if ($SBAlertItemsController != nil)

-        [[$SBAlertItemsController sharedInstance] activateAlertItem:[[$SafeModeAlertItem alloc] init]];
+        [[$SBAlertItemsController sharedInstance] activateAlertItem:[[[$SafeModeAlertItem alloc] init] autorelease]];
+}
+
+
+// XXX: on iOS 5.0, we really would prefer avoiding 
+
+MSInstanceMessageHook2(void, SBStatusBar, touchesEnded,withEvent, id, touches, id, event) {
+    MSAlert();
+    MSOldCall(touches, event);
+}
+
+MSInstanceMessageHook1(void, SBStatusBar, mouseDown, void *, event) {
+    MSAlert();
+    MSOldCall(event);

 }
 
 }
 

-MSHook(void, SBStatusBar$mouseDown$, SBStatusBar *self, SEL sel, GSEventRef event) {
+MSInstanceMessageHook2(void, UIStatusBar, touchesBegan,withEvent, void *, touches, void *, event) {

     MSAlert();
     MSAlert();

-    _SBStatusBar$mouseDown$(self, sel, event);
+    MSOldCall(touches, event);

 }
 
 }
 

-static void SBIconController$showInfoAlertIfNeeded(id self, SEL sel) {
-    static bool loaded = false;
-    if (loaded)
+
+// this fairly complex code came from Grant, to solve the "it Safe Mode"-in-bar bug
+
+MSInstanceMessageHook0(void, SBStatusBarDataManager, _updateTimeString) {
+    char *_data(&MSHookIvar<char>(self, "_data"));
+    if (_data == NULL)
+        return;
+
+    Ivar _itemIsEnabled(object_getInstanceVariable(self, "_itemIsEnabled", NULL));
+    if (_itemIsEnabled == NULL)
+        return;
+
+    Ivar _itemIsCloaked(object_getInstanceVariable(self, "_itemIsCloaked", NULL));
+    if (_itemIsCloaked == NULL)
+        return;
+
+    size_t enabledOffset(ivar_getOffset(_itemIsEnabled));
+    size_t cloakedOffset(ivar_getOffset(_itemIsCloaked));
+    if (enabledOffset >= cloakedOffset)

         return;
         return;

-    loaded = true;
+
+    size_t offset(cloakedOffset - enabledOffset);
+    char *timeString(_data + offset);
+    strcpy(timeString, "Exit Safe Mode");
+}
+
+
+static bool alerted_;
+
+static void AlertIfNeeded() {
+    if (alerted_)
+        return;
+    alerted_ = true;

     MSAlert();
 }
 
     MSAlert();
 }
 

-static int SBButtonBar$maxIconColumns(id<MobileSubstrate> self, SEL sel) {
+
+// on iOS 4.3 and above we can use this advertisement, which seems to check every time the user unlocks
+// XXX: verify that this still works on iOS 5.0
+
+MSClassMessageHook0(void, AAAccountManager, showMobileMeOfferIfNecessary) {
+    AlertIfNeeded();
+}
+
+
+// -[SBIconController showInfoAlertIfNeeded] explains how to drag icons around the iPhone home screen
+// it used to be shown to users when they unlocked their screen for the first time, and happened every unlock
+// however, as of iOS 4.3, it got relegated to only appearing once the user installed an app or web clip
+
+MSInstanceMessageHook0(void, SBIconController, showInfoAlertIfNeeded) {
+    AlertIfNeeded();
+}
+
+
+// the icon state, including crazy configurations like Five Icon Dock, is stored in SpringBoard's defaults
+// unfortunately, SpringBoard on iOS 2.0 and 2.1 (maybe 2.2 as well) buffer overrun with more than 4 icons
+// there is a third party package called IconSupport that remedies this, but not everyone is using it yet
+
+MSInstanceMessageHook0(int, SBButtonBar, maxIconColumns) {

     static int max;
     if (max == 0) {
     static int max;
     if (max == 0) {

-        max = [self ms$maxIconColumns];
+        max = MSOldCall();

         if (NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults])
             if (NSDictionary *iconState = [defaults objectForKey:@"iconState"])
                 if (NSDictionary *buttonBar = [iconState objectForKey:@"buttonBar"])
         if (NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults])
             if (NSDictionary *iconState = [defaults objectForKey:@"iconState"])
                 if (NSDictionary *buttonBar = [iconState objectForKey:@"buttonBar"])


@@ -135,62 +236,49 @@ static int SBButtonBar$maxIconColumns(id<MobileSubstrate> self, SEL sel) {
     } return max;
 }
 
     } return max;
 }
 

-static id SBContentLayer$initWithSize$(SBContentLayer<MobileSubstrate> *self, SEL sel, CGSize size) {
-    self = [self ms$initWithSize:size];
-    if (self == nil)
-        return nil;
-    [self setBackgroundColor:[UIColor darkGrayColor]];
-    return self;
+
+MSInstanceMessageHook0(id, SBUIController, init) {
+    if ((self = MSOldCall()) != nil) {
+        UIView *&_contentLayer(MSHookIvar<UIView *>(self, "_contentLayer"));
+        UIView *&_contentView(MSHookIvar<UIView *>(self, "_contentView"));
+
+        UIView *layer;
+        if (&_contentLayer != NULL)
+            layer = _contentLayer;
+        else if (&_contentView != NULL)
+            layer = _contentView;
+        else
+            layer = nil;
+
+        if (layer != nil)
+            [layer setBackgroundColor:[UIColor darkGrayColor]];
+    } return self;
+}
+
+#define Paper_ "/Library/MobileSubstrate/MobileSafety.png"
+
+MSClassMessageHook0(UIImage *, UIImage, defaultDesktopImage) {
+    return [UIImage imageWithContentsOfFile:@Paper_];

 }
 
 }
 

-MSHook(void, SBStatusBarTimeView$tile, SBStatusBarTimeView *self, SEL sel) {
+MSInstanceMessageHook0(void, SBStatusBarTimeView, tile) {

     NSString *&_time(MSHookIvar<NSString *>(self, "_time"));
     CGRect &_textRect(MSHookIvar<CGRect>(self, "_textRect"));
     if (_time != nil)
         [_time release];
     NSString *&_time(MSHookIvar<NSString *>(self, "_time"));
     CGRect &_textRect(MSHookIvar<CGRect>(self, "_textRect"));
     if (_time != nil)
         [_time release];

-    _time = [@"Safe Mode, Click!" retain];
-    GSFontRef font([self textFont]);
-    CGSize size([_time sizeWithFont:(id)font]);
+    _time = [@"Exit Safe Mode" retain];
+    id font([self textFont]);
+    CGSize size([_time sizeWithFont:font]);

     CGRect frame([self frame]);
     CGRect frame([self frame]);

-    NSLog(@"%f:%f,%f:%f:%u", size.height, size.width, frame.size.height, frame.size.width, [[(id) objc_getClass("SBStatusBarController") sharedStatusBarController] statusBarOrientation]);

     _textRect.size = size;
     _textRect.origin.x = (frame.size.width - size.width) / 2;
     _textRect.origin.y = (frame.size.height - size.height) / 2;
 }
 
     _textRect.size = size;
     _textRect.origin.x = (frame.size.width - size.width) / 2;
     _textRect.origin.y = (frame.size.height - size.height) / 2;
 }
 

-#define Dylib_ "/Library/MobileSubstrate/MobileSubstrate.dylib"
-
-extern "C" void MSInitialize() {
-    NSLog(@"MS:Warning: Entering Safe Mode");
-
-    MSHookMessage(objc_getClass("SBButtonBar"), @selector(maxIconColumns), (IMP) &SBButtonBar$maxIconColumns, "ms$");
-    MSHookMessage(objc_getClass("SBContentLayer"), @selector(initWithSize:), (IMP) &SBContentLayer$initWithSize$, "ms$");
-    _SBStatusBar$mouseDown$ = MSHookMessage(objc_getClass("SBStatusBar"), @selector(mouseDown:), &$SBStatusBar$mouseDown$);
-    _SBStatusBarTimeView$tile = MSHookMessage(objc_getClass("SBStatusBarTimeView"), @selector(tile), &$SBStatusBarTimeView$tile);
-
-    char *dil = getenv("DYLD_INSERT_LIBRARIES");
-    if (dil == NULL)
-        NSLog(@"MS:Error: DYLD_INSERT_LIBRARIES is unset?");
-    else {
-        NSArray *dylibs([[NSString stringWithUTF8String:dil] componentsSeparatedByString:@":"]);
-        NSUInteger index([dylibs indexOfObject:@ Dylib_]);
-        if (index == NSNotFound)
-            NSLog(@"MS:Error: dylib not in DYLD_INSERT_LIBRARIES?");
-        else if ([dylibs count] == 1)
-            unsetenv("DYLD_INSERT_LIBRARIES");
-        else {
-            NSMutableArray *value([[[NSMutableArray alloc] init] autorelease]);
-            [value setArray:dylibs];
-            [value removeObjectAtIndex:index];
-            setenv("DYLD_INSERT_LIBRARIES", [[value componentsJoinedByString:@":"] UTF8String], !0);
-        }
-    }

 
 

-    $SBAlertItemsController = objc_getClass("SBAlertItemsController");
+// notification widgets ("wee apps" or "bulletin board sections") are capable of crashing SpringBoard
+// unfortunately, which ones are in use are stored in SpringBoard's defaults, so we need to turn them off

 
 

-    if (Class _class = objc_getClass("SBIconController")) {
-        SEL sel(@selector(showInfoAlertIfNeeded));
-        if (Method method = class_getInstanceMethod(_class, sel))
-            method_setImplementation(method, (IMP) &SBIconController$showInfoAlertIfNeeded);
-    }
+MSInstanceMessageHook0(BOOL, BBSectionInfo, showsInNotificationCenter) {
+    return NO;

 }
 }