596 lines
26 KiB
Objective-C
596 lines
26 KiB
Objective-C
#include <CommonCrypto/CommonDigest.h>
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#import "authenticator/BaseAuthenticator.h"
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#import "AFNetworking.h"
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#import "LauncherNavigationController.h"
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#import "LauncherPreferences.h"
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#import "MinecraftResourceUtils.h"
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#import "ios_uikit_bridge.h"
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#import "utils.h"
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/*
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todo for now - might change anytime
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- make the entire download work anyways
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- cleanup later, before merging?
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- possibility fix incorrect stuff
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- Prevent download when account=local
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- download Log4J patch (or use existing one?)
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- download a vanilla version (tested)
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- download a modded ver with inheritsFrom:
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+ not downloaded
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+ inherit version not found
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+ no internet connection (?)
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- download a modded ver without inheritsFrom
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- SHA check:
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+ client json (tested)
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+ libraries (tested)
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+ client jar (tested)
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+ assets
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- download assets
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+ new structure
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+ old structure (mapped)
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*/
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@implementation MinecraftResourceUtils
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static AFURLSessionManager* manager;
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// Check if the account has permission to download
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+ (BOOL)checkAccessWithDialog:(BOOL)show {
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// for now
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BOOL accessible = [BaseAuthenticator.current.authData[@"username"] hasPrefix:@"Demo."] || BaseAuthenticator.current.authData[@"xboxGamertag"] != nil;
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if (!accessible && show) {
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showDialog(currentVC(), localize(@"Error", nil), @"Minecraft can't be legally installed when logged in with a local account. Please switch to an online account to continue.");
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}
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return accessible;
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}
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// Check SHA of the file
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+ (BOOL)checkSHAIgnorePref:(NSString *)sha forFile:(NSString *)path altName:(NSString *)altName {
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if (sha == nil) {
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// When sha = skip, only check for file existence
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BOOL existence = [NSFileManager.defaultManager fileExistsAtPath:path];
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if (existence) {
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NSLog(@"[MCDL] Warning: couldn't find SHA for %@, have to assume it's good.", path);
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}
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return existence;
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}
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NSData *data = [NSData dataWithContentsOfFile:path];
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if (data == nil) {
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NSLog(@"[MCDL] SHA1 checker: file doesn't exist: %@", path.lastPathComponent);
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return NO;
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}
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unsigned char digest[CC_SHA1_DIGEST_LENGTH];
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CC_SHA1(data.bytes, (CC_LONG)data.length, digest);
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NSMutableString *localSHA = [NSMutableString stringWithCapacity:CC_SHA1_DIGEST_LENGTH * 2];
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for(int i = 0; i < CC_SHA1_DIGEST_LENGTH; i++) {
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[localSHA appendFormat:@"%02x", digest[i]];
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}
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BOOL check = [sha isEqualToString:localSHA];
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if (!check || [getPreference(@"debug_logging") boolValue]) {
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NSLog(@"[MCDL] SHA1 %@ for %@%@",
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(check ? @"passed" : @"failed"),
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(altName ? altName : path.lastPathComponent),
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(check ? @"" : [NSString stringWithFormat:@" (expected: %@, got: %@)", sha, localSHA]));
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}
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return check;
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}
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+ (BOOL)checkSHA:(NSString *)sha forFile:(NSString *)path altName:(NSString *)altName {
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if ([getPreference(@"check_sha") boolValue]) {
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return [self checkSHAIgnorePref:sha forFile:path altName:altName];
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} else {
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return [NSFileManager.defaultManager fileExistsAtPath:path];
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}
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}
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// Handle inheritsFrom
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+ (void)processVersion:(NSMutableDictionary *)json inheritsFrom:(NSMutableDictionary *)inheritsFrom {
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[self insertSafety:inheritsFrom from:json arr:@[
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@"assetIndex", @"assets", @"id",
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@"inheritsFrom",
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@"mainClass", @"minecraftArguments",
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@"optifineLib", @"releaseTime", @"time", @"type"
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]];
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inheritsFrom[@"arguments"] = json[@"arguments"];
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for (NSMutableDictionary *lib in json[@"libraries"]) {
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NSString *libName = [lib[@"name"] substringToIndex:[lib[@"name"] rangeOfString:@":" options:NSBackwardsSearch].location];
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int i;
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for (i = 0; i < [inheritsFrom[@"libraries"] count]; i++) {
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NSMutableDictionary *libAdded = inheritsFrom[@"libraries"][i];
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NSString *libAddedName = [libAdded[@"name"] substringToIndex:[libAdded[@"name"] rangeOfString:@":" options:NSBackwardsSearch].location];
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if ([libAdded[@"name"] hasPrefix:libName]) {
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inheritsFrom[@"libraries"][i] = lib;
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i = -1;
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break;
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}
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}
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if (i != -1) {
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[inheritsFrom[@"libraries"] addObject:lib];
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}
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}
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//inheritsFrom[@"inheritsFrom"] = nil;
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}
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+ (void)processVersion:(NSMutableDictionary *)json inheritsFrom:(id)object progress:(NSProgress *)mainProgress callback:(MDCallback)callback success:(void (^)(NSMutableDictionary *json))success {
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[self downloadClientJson:object progress:mainProgress callback:callback success:^(NSMutableDictionary *inheritsFrom){
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[self processVersion:json inheritsFrom:inheritsFrom];
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[self downloadClientJson:inheritsFrom[@"assetIndex"] progress:mainProgress callback:callback success:^(NSMutableDictionary *assetJson){
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inheritsFrom[@"assetIndexObj"] = assetJson;
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success(inheritsFrom);
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}];
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}];
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}
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// Download the client and assets index file
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+ (void)downloadClientJson:(NSObject *)version progress:(NSProgress *)mainProgress callback:(MDCallback)callback success:(void (^)(NSMutableDictionary *json))success {
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++mainProgress.totalUnitCount;
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BOOL isAssetIndex = NO;
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NSString *versionStr, *versionURL, *versionSHA;
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if ([version isKindOfClass:[NSDictionary class]]) {
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isAssetIndex = [version valueForKey:@"totalSize"] != nil;
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versionStr = [version valueForKey:@"id"];
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versionURL = [version valueForKey:@"url"];
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versionSHA = versionURL.stringByDeletingLastPathComponent.lastPathComponent;
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} else {
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versionStr = (NSString *)version;
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versionSHA = nil;
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}
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NSString *jsonPath;
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if (isAssetIndex) {
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versionStr = [NSString stringWithFormat:@"assets/indexes/%@", versionStr];
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jsonPath = [NSString stringWithFormat:@"%s/%@.json", getenv("POJAV_GAME_DIR"), versionStr];
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} else {
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jsonPath = [NSString stringWithFormat:@"%1$s/versions/%2$@/%[email protected]", getenv("POJAV_GAME_DIR"), versionStr];
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}
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if (![self checkSHA:versionSHA forFile:jsonPath altName:nil]) {
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if (![self checkAccessWithDialog:YES]) {
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callback(nil, nil, nil);
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return;
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}
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NSString *verPath = jsonPath.stringByDeletingLastPathComponent;
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NSError *error;
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[NSFileManager.defaultManager createDirectoryAtPath:verPath withIntermediateDirectories:YES attributes:nil error:&error];
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if (error != nil) {
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NSString *errorStr = [NSString stringWithFormat:@"Failed to create directory %@: %@", verPath, error.localizedDescription];
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NSLog(@"[MCDL] Error: %@", errorStr);
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showDialog(currentVC(), localize(@"Error", nil), errorStr);
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callback(nil, nil, nil);
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return;
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}
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callback([NSString stringWithFormat:@"Downloading %@.json", versionStr], mainProgress, nil);
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NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:versionURL]];
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NSURLSessionDownloadTask *downloadTask = [manager downloadTaskWithRequest:request progress:^(NSProgress * _Nonnull progress){
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callback([NSString stringWithFormat:@"Downloading %@.json", versionStr], mainProgress, progress);
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} destination:^NSURL *(NSURL *targetPath, NSURLResponse *response) {
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[NSFileManager.defaultManager removeItemAtPath:jsonPath error:nil];
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return [NSURL fileURLWithPath:jsonPath];
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} completionHandler:^(NSURLResponse *response, NSURL *filePath, NSError *error) {
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if (error != nil) { // FIXME: correct?
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NSString *errorStr = [NSString stringWithFormat:@"Failed to download %@: %@\nCall stack: %@", versionURL, error.localizedDescription, NSThread.callStackSymbols];
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NSLog(@"[MCDL] Error: %@ %@", errorStr, NSThread.callStackSymbols);
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showDialog(currentVC(), localize(@"Error", nil), errorStr);
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callback(nil, nil, nil);
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return;
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} else {
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// A version from the offical server won't likely to have inheritsFrom, so return immediately
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if (![self checkSHA:versionSHA forFile:jsonPath altName:nil]) {
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// Abort when a downloaded file's SHA mismatches
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showDialog(currentVC(), localize(@"Error", nil), [NSString stringWithFormat:@"Failed to verify file %@: SHA1 mismatch", versionStr]);
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callback(nil, nil, nil);
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return;
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}
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++mainProgress.completedUnitCount;
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NSMutableDictionary *json = parseJSONFromFile(jsonPath);
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if (isAssetIndex) {
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success(json);
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return;
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}
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[self downloadClientJson:json[@"assetIndex"] progress:mainProgress callback:callback success:^(NSMutableDictionary *assetJson){
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json[@"assetIndexObj"] = assetJson;
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success(json);
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}];
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}
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}];
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callback([NSString stringWithFormat:@"Downloading %@.json", versionStr], mainProgress, [manager downloadProgressForTask:downloadTask]);
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[downloadTask resume];
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} else {
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NSMutableDictionary *json = parseJSONFromFile(jsonPath);
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if (json == nil) {
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callback(nil, nil, nil);
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return;
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}
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if (isAssetIndex) {
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success(json);
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return;
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}
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if (json[@"inheritsFrom"] == nil) {
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if (json[@"assetIndex"] == nil) {
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success(json);
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return;
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}
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++mainProgress.completedUnitCount;
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[self downloadClientJson:json[@"assetIndex"] progress:mainProgress callback:callback success:^(NSMutableDictionary *assetJson){
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json[@"assetIndexObj"] = assetJson;
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success(json);
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}];
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return;
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}
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// Find the inheritsFrom
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id inheritsFrom = [self findVersion:json[@"inheritsFrom"] inList:remoteVersionList];
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if (inheritsFrom != nil) {
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[self processVersion:json inheritsFrom:inheritsFrom progress:mainProgress callback:callback success:success];
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return;
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}
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// Try using local json
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NSMutableDictionary *inheritsFromDict = parseJSONFromFile([NSString stringWithFormat:@"%1$s/versions/%2$@/%[email protected]", getenv("POJAV_GAME_DIR"), json[@"inheritsFrom"]]);
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if (inheritsFromDict != nil) {
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[self processVersion:json inheritsFrom:inheritsFromDict];
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success(inheritsFromDict);
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return;
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}
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// If the inheritsFrom is not found, return an error
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showDialog(currentVC(), localize(@"Error", nil), [NSString stringWithFormat:@"Could not find inheritsFrom=%@ for version %@", json[@"inheritsFrom"], versionStr]);
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}
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}
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+ (void)insertSafety:(NSMutableDictionary *)targetVer from:(NSDictionary *)fromVer arr:(NSArray *)arr {
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for (NSString *key in arr) {
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if (([fromVer[key] isKindOfClass:NSString.class] && [fromVer[key] length] > 0) || targetVer[key] == nil) {
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targetVer[key] = fromVer[key];
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} else {
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NSLog(@"[MCDL] insertSafety: how to insert %@?", key);
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}
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}
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}
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+ (void)tweakVersionJson:(NSMutableDictionary *)json {
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// Exclude some libraries
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for (NSMutableDictionary *library in json[@"libraries"]) {
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library[@"skip"] = @(
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// Exclude platform-dependant libraries
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library[@"downloads"][@"classifiers"] != nil ||
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library[@"natives"] != nil ||
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// Exclude LWJGL libraries
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[library[@"name"] hasPrefix:@"org.lwjgl"]
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);
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if ([library[@"name"] hasPrefix:@"net.java.dev.jna:jna:"]) {
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// Special handling for LabyMod 1.8.9 and Forge 1.12.2(?)
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// we have libjnidispatch 5.8.0 in Frameworks directory
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NSString *versionStr = [library[@"name"] componentsSeparatedByString:@":"][2];
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NSArray<NSString *> *version = [versionStr componentsSeparatedByString:@"."];
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if (version[0].intValue < 5 || version[1].intValue < 8) {
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//System.out.println("Library " + libItem.name + " has been changed to version 5.8.0");
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library[@"name"] = @"net.java.dev.jna:jna:5.8.0";
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library[@"downloads"][@"artifact"][@"path"] = @"net/java/dev/jna/jna/5.8.0/jna-5.8.0.jar";
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library[@"downloads"][@"artifact"][@"url"] = @"https://libraries.minecraft.net/net/java/dev/jna/jna/5.8.0/jna-5.8.0.jar";
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library[@"downloads"][@"artifact"][@"sha1"] = @"3551d8d827e54858214107541d3aff9c615cb615";
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}
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}
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}
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// Add the client as a library
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NSMutableDictionary *client = [[NSMutableDictionary alloc] init];
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client[@"downloads"] = [[NSMutableDictionary alloc] init];
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if (json[@"downloads"][@"client"] == nil) {
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client[@"downloads"][@"artifact"] = [[NSMutableDictionary alloc] init];
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} else {
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client[@"downloads"][@"artifact"] = json[@"downloads"][@"client"];
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}
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client[@"downloads"][@"artifact"][@"path"] = [NSString stringWithFormat:@"../versions/%1$@/%[email protected]", json[@"id"]];
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client[@"name"] = [NSString stringWithFormat:@"%@.jar", json[@"id"]];
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[json[@"libraries"] addObject:client];
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}
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+ (BOOL)downloadClientLibraries:(NSArray *)libraries progress:(NSProgress *)mainProgress callback:(void (^)(NSString *stage, NSProgress *progress))callback {
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callback(@"Begin: download libraries", nil);
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__block BOOL cancel = NO;
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dispatch_group_t group = dispatch_group_create();
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for (NSDictionary *library in libraries) {
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if (cancel) {
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NSLog(@"[MCDL] Task download libraries is cancelled");
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return NO;
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}
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dispatch_group_wait(group, DISPATCH_TIME_FOREVER);
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NSString *name = library[@"name"];
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NSMutableDictionary *artifact = library[@"downloads"][@"artifact"];
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if (artifact == nil && [name containsString:@":"]) {
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NSLog(@"[MCDL] Unknown artifact object for %@, attempting to generate one", name);
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artifact = [[NSMutableDictionary alloc] init];
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NSString *prefix = library[@"url"] == nil ? @"https://libraries.minecraft.net/" : [library[@"url"] stringByReplacingOccurrencesOfString:@"http://" withString:@"https://"];
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NSArray *libParts = [name componentsSeparatedByString:@":"];
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artifact[@"path"] = [NSString stringWithFormat:@"%1$@/%2$@/%3$@/%2$@-%[email protected]", [libParts[0] stringByReplacingOccurrencesOfString:@"." withString:@"/"], libParts[1], libParts[2]];
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artifact[@"url"] = [NSString stringWithFormat:@"%@%@", prefix, artifact[@"path"]];
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artifact[@"sha1"] = library[@"checksums"][0];
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}
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NSString *path = [NSString stringWithFormat:@"%s/libraries/%@", getenv("POJAV_GAME_DIR"), artifact[@"path"]];
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NSString *sha1 = artifact[@"sha1"];
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NSString *url = artifact[@"url"];
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if ([library[@"skip"] boolValue]) {
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callback([NSString stringWithFormat:@"Skipped library %@", name], nil);
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++mainProgress.completedUnitCount;
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continue;
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} else if ([self checkSHA:sha1 forFile:path altName:nil]) {
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++mainProgress.completedUnitCount;
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continue;
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}
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if (![self checkAccessWithDialog:YES]) {
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callback(nil, nil);
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cancel = YES;
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continue;
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}
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dispatch_group_enter(group);
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[NSFileManager.defaultManager createDirectoryAtPath:path.stringByDeletingLastPathComponent withIntermediateDirectories:YES attributes:nil error:nil];
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callback([NSString stringWithFormat:@"Downloading library %@", name], nil);
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NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:url]];
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NSURLSessionDownloadTask *downloadTask = [manager downloadTaskWithRequest:request progress:^(NSProgress * _Nonnull progress){
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callback([NSString stringWithFormat:@"Downloading library %@", name], progress);
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} destination:^NSURL *(NSURL *targetPath, NSURLResponse *response) {
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[NSFileManager.defaultManager removeItemAtPath:path error:nil];
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return [NSURL fileURLWithPath:path];
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} completionHandler:^(NSURLResponse *response, NSURL *filePath, NSError *error) {
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if (error != nil) {
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cancel = YES;
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NSString *errorStr = [NSString stringWithFormat:@"Failed to download %@: %@\nCall stack: %@", url, error.localizedDescription, NSThread.callStackSymbols];
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NSLog(@"[MCDL] Error: %@ %@", errorStr, NSThread.callStackSymbols);
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showDialog(currentVC(), localize(@"Error", nil), errorStr);
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callback(nil, nil);
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} else if (![self checkSHA:sha1 forFile:path altName:nil]) {
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// Abort when a downloaded file's SHA mismatches
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cancel = YES;
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showDialog(currentVC(), localize(@"Error", nil), [NSString stringWithFormat:@"Failed to verify file %@: SHA1 mismatch", path.lastPathComponent]);
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callback(nil, nil);
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}
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dispatch_group_leave(group);
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++mainProgress.completedUnitCount;
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}];
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callback([NSString stringWithFormat:@"Downloading library %@", name], [manager downloadProgressForTask:downloadTask]);
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[downloadTask resume];
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}
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dispatch_group_wait(group, DISPATCH_TIME_FOREVER);
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callback(@"Finished: download libraries", nil);
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return !cancel;
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}
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+ (BOOL)downloadClientAssets:(NSDictionary *)assets progress:(NSProgress *)mainProgress callback:(void (^)(NSString *stage, NSProgress *progress))callback {
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callback(@"Begin: download assets", nil);
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dispatch_group_t group = dispatch_group_create();
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int downloadIndex = -1;
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__block int jobsAvailable = 10;
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for (NSString *name in assets[@"objects"]) {
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if (jobsAvailable < 0) {
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break;
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} else if (jobsAvailable == 0) {
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//dispatch_group_wait(group, DISPATCH_TIME_FOREVER);
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while (jobsAvailable == 0) {
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usleep(50000);
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}
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}
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NSString *hash = assets[@"objects"][name][@"hash"];
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NSString *pathname = [NSString stringWithFormat:@"%@/%@", [hash substringToIndex:2], hash];
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/* Special case for 1.19+
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* Since 1.19-pre1, setting the window icon on macOS goes through ObjC.
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* However, if an IOException occurs, it won't try to set.
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* We skip downloading the icon file to trigger this. */
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if ([name hasSuffix:@"icons/minecraft.icns"]) {
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[NSFileManager.defaultManager removeItemAtPath:pathname error:nil];
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continue;
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}
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--jobsAvailable;
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dispatch_group_enter(group);
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NSString *path;
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if ([assets[@"map_to_resources"] boolValue]) {
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path = [NSString stringWithFormat:@"%s/resources/%@", getenv("POJAV_GAME_DIR"), name];
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} else {
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path = [NSString stringWithFormat:@"%s/assets/objects/%@", getenv("POJAV_GAME_DIR"), pathname];
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}
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if ([self checkSHA:hash forFile:path altName:name]) {
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++mainProgress.completedUnitCount;
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++jobsAvailable;
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dispatch_group_leave(group);
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usleep(1000);
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continue;
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}
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if (![self checkAccessWithDialog:NO]) {
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dispatch_group_leave(group);
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break;
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}
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NSError *err;
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[NSFileManager.defaultManager createDirectoryAtPath:path.stringByDeletingLastPathComponent withIntermediateDirectories:YES attributes:nil error:&err];
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//NSLog(@"path %@ err %@", path, err);
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usleep(50000); // avoid overloading queue
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callback([NSString stringWithFormat:@"Downloading %@", name], nil);
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NSString *url = [NSString stringWithFormat:@"https://resources.download.minecraft.net/%@", pathname];
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NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:url]];
|
|
NSURLSessionDownloadTask *downloadTask = [manager downloadTaskWithRequest:request progress:^(NSProgress * _Nonnull progress){
|
|
callback([NSString stringWithFormat:@"Downloading %@", name], progress);
|
|
} destination:^NSURL *(NSURL *targetPath, NSURLResponse *response) {
|
|
[NSFileManager.defaultManager removeItemAtPath:path error:nil];
|
|
return [NSURL fileURLWithPath:path];
|
|
} completionHandler:^(NSURLResponse *response, NSURL *filePath, NSError *error) {
|
|
if (error != nil) {
|
|
if (jobsAvailable < 0) {
|
|
dispatch_group_leave(group);
|
|
return;
|
|
}
|
|
jobsAvailable = -3;
|
|
NSString *errorStr = [NSString stringWithFormat:@"Failed to download %@: %@\nCall stack: %@", url, error.localizedDescription, NSThread.callStackSymbols];
|
|
NSLog(@"[MCDL] Error: %@ %@", errorStr, NSThread.callStackSymbols);
|
|
showDialog(currentVC(), localize(@"Error", nil), errorStr);
|
|
callback(nil, nil);
|
|
} else if (![self checkSHA:hash forFile:path altName:name]) {
|
|
// Abort when a downloaded file's SHA mismatches
|
|
if (jobsAvailable < 0) {
|
|
dispatch_group_leave(group);
|
|
return;
|
|
}
|
|
jobsAvailable = -2;
|
|
showDialog(currentVC(), localize(@"Error", nil), [NSString stringWithFormat:@"Failed to verify file %@: SHA1 mismatch", path.lastPathComponent]);
|
|
callback(nil, nil);
|
|
}
|
|
++jobsAvailable;
|
|
++mainProgress.completedUnitCount;
|
|
dispatch_group_leave(group);
|
|
}];
|
|
callback([NSString stringWithFormat:@"Downloading %@", name], [manager downloadProgressForTask:downloadTask]);
|
|
[downloadTask resume];
|
|
}
|
|
dispatch_group_wait(group, DISPATCH_TIME_FOREVER);
|
|
callback(@"Finished: download assets", nil);
|
|
return jobsAvailable != -1;
|
|
}
|
|
|
|
+ (void)downloadVersion:(NSObject *)version callback:(MDCallback)callback {
|
|
manager = [[AFURLSessionManager alloc] init];
|
|
NSProgress *mainProgress = [NSProgress progressWithTotalUnitCount:0];
|
|
[self downloadClientJson:version progress:mainProgress callback:callback success:^(NSMutableDictionary *json) {
|
|
[self tweakVersionJson:json];
|
|
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
|
|
BOOL success;
|
|
|
|
mainProgress.totalUnitCount = [json[@"libraries"] count] + [json[@"assetIndexObj"][@"objects"] count];
|
|
id wrappedCallback = ^(NSString *s, NSProgress *p) {
|
|
dispatch_async(dispatch_get_main_queue(), ^{
|
|
callback(s, s?mainProgress:nil, p);
|
|
});
|
|
};
|
|
|
|
success = [self downloadClientLibraries:json[@"libraries"] progress:mainProgress callback:wrappedCallback];
|
|
if (!success) return;
|
|
|
|
success = [self downloadClientAssets:json[@"assetIndexObj"] progress:mainProgress callback:wrappedCallback];
|
|
if (!success) return;
|
|
|
|
isUseStackQueueCall = json[@"arguments"] != nil;
|
|
|
|
dispatch_async(dispatch_get_main_queue(), ^{
|
|
callback(nil, mainProgress, nil);
|
|
});
|
|
});
|
|
}];
|
|
}
|
|
|
|
+ (void)processJVMArgs:(NSMutableDictionary *)json {
|
|
// Parse Forge 1.17+ additional JVM Arguments
|
|
if (json[@"inheritsFrom"] == nil || json[@"arguments"][@"jvm"] == nil) {
|
|
return;
|
|
}
|
|
|
|
json[@"arguments"][@"jvm_processed"] = [[NSMutableArray alloc] init];
|
|
|
|
NSDictionary *varArgMap = @{
|
|
@"${classpath_separator}": @":",
|
|
@"${library_directory}": [NSString stringWithFormat:@"%s/libraries", getenv("POJAV_GAME_DIR")],
|
|
@"${version_name}": json[@"id"]
|
|
};
|
|
|
|
for (id arg in json[@"arguments"][@"jvm"]) {
|
|
if ([arg isKindOfClass:NSString.class]) {
|
|
NSString *argStr = arg;
|
|
for (NSString *key in varArgMap.allKeys) {
|
|
argStr = [argStr stringByReplacingOccurrencesOfString:key withString:varArgMap[key]];
|
|
}
|
|
[json[@"arguments"][@"jvm_processed"] addObject:argStr];
|
|
}
|
|
}
|
|
}
|
|
|
|
+ (NSObject *)findVersion:(NSString *)version inList:(NSArray *)list {
|
|
for (id object in list) {
|
|
NSString *item;
|
|
if ([object isKindOfClass:[NSDictionary class]]) {
|
|
item = [object valueForKey:@"id"];
|
|
} else {
|
|
item = (NSString *)object;
|
|
}
|
|
if ([version isEqualToString:item]) {
|
|
return object;
|
|
}
|
|
}
|
|
return nil;
|
|
}
|
|
|
|
+ (NSObject *)findNearestVersion:(NSObject *)version expectedType:(int)type {
|
|
if (type != TYPE_RELEASE && type != TYPE_SNAPSHOT) {
|
|
// Only support finding for releases and snapshot for now
|
|
return nil;
|
|
}
|
|
|
|
if ([version isKindOfClass:NSString.class]){
|
|
// Find in inheritsFrom
|
|
NSDictionary *versionDict = parseJSONFromFile([NSString stringWithFormat:@"%1$s/versions/%2$@/%[email protected]", getenv("POJAV_GAME_DIR"), version]);
|
|
NSAssert(versionDict != nil, @"version should not be null");
|
|
if (versionDict[@"inheritsFrom"] == nil) {
|
|
// How then?
|
|
return nil;
|
|
}
|
|
NSObject *inheritsFrom = [self findVersion:versionDict[@"inheritsFrom"] inList:remoteVersionList];
|
|
if (type == TYPE_RELEASE) {
|
|
return inheritsFrom;
|
|
} else if (type == TYPE_SNAPSHOT) {
|
|
return [self findNearestVersion:inheritsFrom expectedType:type];
|
|
}
|
|
}
|
|
|
|
NSString *versionType = [version valueForKey:@"type"];
|
|
int index = [remoteVersionList indexOfObject:(NSDictionary *)version];
|
|
if ([versionType isEqualToString:@"release"] && type == TYPE_SNAPSHOT) {
|
|
// Returns the (possible) latest snapshot for the version
|
|
NSDictionary *result = remoteVersionList[index + 1];
|
|
// Sometimes, a release is followed with another release (1.16->1.16.1), go lower in this case
|
|
if ([result[@"type"] isEqualToString:@"release"]) {
|
|
return [self findNearestVersion:result expectedType:type];
|
|
}
|
|
return result;
|
|
} else if ([versionType isEqualToString:@"snapshot"] && type == TYPE_RELEASE) {
|
|
while (remoteVersionList.count > abs(index)) {
|
|
// In case the snapshot has yet attached to a release, perform a reverse find
|
|
NSDictionary *result = remoteVersionList[abs(index)];
|
|
// Returns the corresponding release for the snapshot, or latest release if none found
|
|
if ([result[@"type"] isEqualToString:@"release"]) {
|
|
return result;
|
|
}
|
|
// Continue to decrement, later abs() it
|
|
index--;
|
|
}
|
|
}
|
|
|
|
// No idea on handling everything else
|
|
return nil;
|
|
}
|
|
|
|
@end
|