Allow adding app shortcuts to home screen (rewrite #62)

Thanks @Vishram1123 for the idea

AppInfo.h

@@ -17,5 +17,6 @@
 - (void)setDataUUID:(NSString *)uuid;
 - (void)setTweakFolder:(NSString *)tweakFolder;
 - (instancetype)initWithBundlePath:(NSString*)bundlePath;
+- (NSDictionary *)generateWebClipConfig;
 - (void)save;
 @end

AppInfo.m

@@ -73,6 +73,53 @@ - (UIImage*)icon {
     return icon;
 }
 
+- (UIImage *)generateLiveContainerWrappedIcon {
+    UIImage *lcIcon = [UIImage imageNamed:@"AppIcon76x76"];
+    UIImage *icon = self.icon;
+    CGFloat iconXY = (lcIcon.size.width - 40) / 2;
+    UIGraphicsBeginImageContextWithOptions(lcIcon.size, NO, 0.0);
+    [lcIcon drawInRect:CGRectMake(0, 0, lcIcon.size.width, lcIcon.size.height)];
+    CGRect rect = CGRectMake(iconXY, iconXY, 40, 40);
+    [[UIBezierPath bezierPathWithRoundedRect:rect cornerRadius:7] addClip];
+    [icon drawInRect:rect];
+    UIImage *newIcon = UIGraphicsGetImageFromCurrentImageContext();
+    UIGraphicsEndImageContext();
+    return newIcon;
+}
+
+- (NSDictionary *)generateWebClipConfig {
+    NSDictionary *payload = @{
+        @"FullScreen": @YES,
+        @"Icon": UIImagePNGRepresentation(self.generateLiveContainerWrappedIcon),
+        @"IgnoreManifestScope": @YES,
+        @"IsRemovable": @YES,
+        @"Label": self.displayName,
+        @"PayloadDescription": [NSString stringWithFormat:@"Web Clip for launching %@ (%@) in LiveContainer", self.displayName, self.bundlePath.lastPathComponent],
+        @"PayloadDisplayName": self.displayName,
+        @"PayloadIdentifier": self.bundleIdentifier,
+        @"PayloadType": @"com.apple.webClip.managed",
+        @"PayloadUUID": self.dataUUID,
+        @"PayloadVersion": @(1),
+        @"Precomposed": @NO,
+        @"toPayloadOrganization": @"LiveContainer",
+        @"URL": [NSString stringWithFormat:@"livecontainer://livecontainer-launch?bundle-name=%@", self.bundlePath.lastPathComponent]
+    };
+    return @{
+        @"ConsentText": @{
+            @"default": [NSString stringWithFormat:@"This profile installs a web clip which opens %@ (%@) in LiveContainer", self.displayName, self.bundlePath.lastPathComponent]
+        },
+        @"PayloadContent": @[payload],
+        @"PayloadDescription": payload[@"PayloadDescription"],
+        @"PayloadDisplayName": self.displayName,
+        @"PayloadIdentifier": self.bundleIdentifier,
+        @"PayloadOrganization": @"LiveContainer",
+        @"PayloadRemovalDisallowed": @(NO),
+        @"PayloadType": @"Configuration",
+        @"PayloadUUID": @"345097fb-d4f7-4a34-ab90-2e3f1ad62eed",
+        @"PayloadVersion": @(1),
+    };
+}
+
 - (void)save {
     [_info writeToFile:[NSString stringWithFormat:@"%@/Info.plist", _bundlePath] atomically:YES];
 }

LCAppDelegate.m

@@ -1,6 +1,7 @@
 #import "LCAppDelegate.h"
 #import "LCJITLessSetupViewController.h"
 #import "LCTabBarController.h"
+#import "LCUtils.h"
 
 @implementation LCAppDelegate
 
@@ -18,4 +19,20 @@ - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(
     return YES;
 }
 
+- (BOOL)application:(UIApplication *)application openURL:(NSURL *)url options:(NSDictionary<UIApplicationOpenURLOptionsKey,id> *)options {
+    NSURLComponents* components = [NSURLComponents componentsWithURL:url resolvingAgainstBaseURL:NO];
+    if(![components.host isEqualToString:@"livecontainer-launch"]) return false;
+
+    for (NSURLQueryItem* queryItem in components.queryItems) {
+        if ([queryItem.name isEqualToString:@"bundle-name"]) {
+            [NSUserDefaults.standardUserDefaults setObject:queryItem.value forKey:@"selected"];
+
+            // Attempt to restart LiveContainer with the selected guest app
+            [LCUtils launchToGuestApp];
+            break;
+        }
+    }
+    return true;
+}
+
 @end

LCRootViewController.m

@@ -1,4 +1,5 @@
 #import <CommonCrypto/CommonDigest.h>
+#import <SafariServices/SafariServices.h>
 #import <UniformTypeIdentifiers/UniformTypeIdentifiers.h>
 #import "LCRootViewController.h"
 #import "LCUtils.h"
@@ -8,7 +9,6 @@
 #import "unarchive.h"
 #import "AppInfo.h"
 
-
 #include <libgen.h>
 #include <mach-o/fat.h>
 #include <mach-o/loader.h>
@@ -78,6 +78,13 @@ static void patchExecSlice(const char *path, struct mach_header_64 *header) {
     }
 }
 
+@implementation NSURL(hack)
+- (BOOL)safari_isHTTPFamilyURL {
+    // Screw it, Apple
+    return YES;
+}
+@end
+
 @interface LCRootViewController ()
 @property(atomic) NSMutableArray<NSString *> *objects;
 @property(nonatomic) NSString *bundlePath, *docPath, *tweakPath;
@@ -164,22 +171,7 @@ - (void)launchButtonTapped {
         return;
     }
 
-    NSString *urlScheme;
-    NSString *tsPath = [NSString stringWithFormat:@"%@/../_TrollStore", NSBundle.mainBundle.bundlePath];
-    if (!access(tsPath.UTF8String, F_OK)) {
-        urlScheme = @"apple-magnifier://enable-jit?bundle-id=%@";
-    } else if (LCUtils.certificatePassword) {
-        urlScheme = @"livecontainer://open?un_used=%@";
-    } else {
-        urlScheme = @"sidestore://sidejit-enable?bid=%@";
-    }
-    NSURL *sidejitURL = [NSURL URLWithString:[NSString stringWithFormat:urlScheme, NSBundle.mainBundle.bundleIdentifier]];
-    if ([UIApplication.sharedApplication canOpenURL:sidejitURL]) {
-        [UIApplication.sharedApplication openURL:sidejitURL options:@{} completionHandler:^(BOOL b) {
-            exit(0);
-        }];
-        return;
-    }
+    if ([LCUtils launchToGuestApp]) return;
 
     [self showDialogTitle:@"Instruction" message:@"To use this button, you need a build of SideStore that supports enabling JIT through URL scheme. Otherwise, you need to manually enable it."
     handler:^(UIAlertAction * action) {
@@ -619,6 +611,16 @@ - (UIContextMenuConfiguration *)tableView:(UITableView *)tableView contextMenuCo
     }
 
     NSArray *menuItems = @[
+        [UIAction
+            actionWithTitle:@"Add to Home Screen"
+            image:[UIImage systemImageNamed:@"plus.app"]
+            identifier:nil
+            handler:^(UIAction *action) {
+                NSData *data = [NSPropertyListSerialization dataWithPropertyList:appInfo.generateWebClipConfig format:NSPropertyListXMLFormat_v1_0 options:0 error:0];
+                NSString *url = [NSString stringWithFormat:@"data:application/x-apple-aspen-config;base64,%@", [data base64EncodedStringWithOptions:0]];
+                SFSafariViewController *svc = [[SFSafariViewController alloc] initWithURL:[NSURL URLWithString:url]];
+                [self presentViewController:svc animated:YES completion:nil];
+            }],
         [UIMenu
             menuWithTitle:@"Change tweak folder"
             image:[UIImage systemImageNamed:@"gearshape.2"]

LCUtils.h

@@ -17,7 +17,9 @@
 + (NSProgress *)signAppBundle:(NSURL *)path completionHandler:(void (^)(BOOL success, NSError *error))completionHandler;
 
 + (BOOL)isAppGroupSideStore;
++ (BOOL)launchToGuestApp;
 
 + (NSURL *)archiveIPAWithSetupMode:(BOOL)setup error:(NSError **)error;
 
+
 @end

LCUtils.m

@@ -1,5 +1,6 @@
 @import Darwin;
 @import MachO;
+@import UIKit;
 
 #import "AltStoreCore/ALTSigner.h"
 #import "LCUtils.h"
@@ -247,4 +248,24 @@ + (NSURL *)archiveIPAWithSetupMode:(BOOL)setup error:(NSError **)error {
     return tmpIPAPath;
 }
 
++ (BOOL)launchToGuestApp {
+    NSString *urlScheme;
+    NSString *tsPath = [NSString stringWithFormat:@"%@/../_TrollStore", NSBundle.mainBundle.bundlePath];
+    if (!access(tsPath.UTF8String, F_OK)) {
+        urlScheme = @"apple-magnifier://enable-jit?bundle-id=%@";
+    } else if (LCUtils.certificatePassword) {
+        urlScheme = @"livecontainer://livecontainer-launch?unused=%@";
+    } else {
+        urlScheme = @"sidestore://sidejit-enable?bid=%@";
+    }
+    NSURL *launchURL = [NSURL URLWithString:[NSString stringWithFormat:urlScheme, NSBundle.mainBundle.bundleIdentifier]];
+    if ([UIApplication.sharedApplication canOpenURL:launchURL]) {
+        [UIApplication.sharedApplication openURL:launchURL options:@{} completionHandler:^(BOOL b) {
+            exit(0);
+        }];
+        return true;
+    }
+    return false;
+}
+
 @end