offline-minecraft-launcher/oml/modules/minecraft.py

global findInChain
def findInChain(versionsPath,version,path):
	versionPath = p(versionsPath,version)
	clientJson = readJsonFile(p(versionPath,version + ".json"))
	curPath = copy.deepcopy(clientJson)
	success = True
	for dir in path:
		if dir in curPath:
			curPath = curPath[dir]
		else:
			success = False
			break
	
	if success == False:
		return findInChain(versionsPath,clientJson["inheritsFrom"],path)
	return curPath

global findInChainDeepest
def findInChainDeepest(versionsPath,version,path):
	found = False
	while True:
		versionPath = p(versionsPath,version)
		clientJson = readJsonFile(p(versionPath,version + ".json"))
		curPath = copy.deepcopy(clientJson)
		for dir in path:
			if dir in curPath:
				curPath = curPath[dir]
			else:
				if "inheritsFrom" in clientJson:
					version = clientJson["inheritsFrom"]
					continue
				else:
					curPath = False
					break
		
		found = curPath
		if "inheritsFrom" in clientJson:
			version = clientJson["inheritsFrom"]
			continue
		else:
			break
	
	if found == False: raise
	return found

global parseJavaLibraryName
def parseJavaLibraryName(libName):
	libSplit = libName.split(":",2)
	libPackage = libSplit[0]
	libName = libSplit[1]
	libVersion = libSplit[2]
	libFilePath = libPackage.replace(".","/") + "/" +libName+ "/" +libVersion+ "/" +libName+ "-" +libVersion+ ".jar"
	return libPackage,libName,libVersion,libFilePath

global re
import re
global checkRules
def checkRules(ruleList):
	action = "disallow"
	for rule in ruleList:
		if "os" in rule:
			if "name" in rule["os"]:
				rule["os"]["name"] = rule["os"]["name"].replace("osx","macos")
				if not re.search(rule["os"]["name"],lv["osName"]): continue
			
			if "arch" in rule["os"]:
				if not re.search(rule["os"]["arch"],lv["jvmArch"]): continue
			
			if "version" in rule["os"]:
				if not re.search(rule["os"]["version"],lv["osVersion"]): continue
			
			action = rule["action"]
		else:
			action = rule["action"]
	
	return action

global getLibraryPrettyName
def getLibraryPrettyName(library):
	libraryName = library["package"]+ ":" +library["name"]+ ":" +library["version"]
	if library["type"] == "native":
		libraryName += " (" +library["nativeOS"]+ ")"
	return libraryName

global getFileHash
def getFileHash(file):
	with open(file,"rb") as fileh:
		return hashlib.sha1(fileh.read()).hexdigest()

global checkLibraryHash
def checkLibraryHash(library):
	hash = False
	if library["dumb"] == False:
		if library["type"] == "library":
			hash = library["data"]["downloads"]["artifact"]["sha1"]
		else:
			hash = library["data"]["downloads"]["classifiers"]["natives-" +library["nativeOS"]]["sha1"]
	else:
		if not os.path.isfile(library["filePathOS"] + ".sha1"):
			print(colored(colorama.fore.RED,"No .sha1 file found, can't verify."),file=sys.stderr)
			return False
		else:
			with open(library["filePathOS"] + ".sha1","r") as fileh:
				hash = fileh.read()
	
	match = (hash == getFileHash(library["filePathOS"]))
	if not match:
		print(colored(colorama.Fore.RED,library["filePathOS"]+ " is corrupt!"),file=sys.stderr)
	
	return match

global processVersion
def processVersion(versionsPath,libraryPath,nativePath,version):
	versionPath = p(versionsPath,version)
	clientJson = readJsonFile(p(versionPath,version + ".json"))
	libraries = []
	arguments = []
	jvmArguments = []
	
	if "inheritsFrom" in clientJson:
		_,libraries,_,_= processVersion(versionsPath,libraryPath,nativePath,clientJson["inheritsFrom"])
	
	for library in clientJson["libraries"]:
		lBase = {}
		lBase["package"],lBase["name"],lBase["version"],lBase["filePath"] = parseJavaLibraryName(library["name"])
		lBase["type"] = "library"
		lBase["data"] = library
		lBase["dumb"] = False
		
		if "downloads" in library: # not dumb
			if "classifiers" in library["downloads"]: # classifiers (usually for natives, their sources and their documentation)
				for classifier in library["downloads"]["classifiers"]:
					l = copy.deepcopy(lBase)
					native = library["downloads"]["classifiers"][classifier]
					if classifier.startswith("natives-"):
						l["type"] = "native"
						l["nativeOS"] = classifier.replace("natives-","",1)
					else:
						continue # TODO: add source and javadoc handling
					
					l["filePathOS"] = p(nativePath,native["path"].replace("/",os.path.sep))
					if "url" in native and native["url"] != "":
						l["url"] = native["url"]
					
					libraries.append(l)
		
			if "artifact" in library["downloads"]: # artifact (usually for libraries)
				l = copy.deepcopy(lBase)
				if "path" in library["downloads"]["artifact"]:
					l["filePathOS"] = p(libraryPath,library["downloads"]["artifact"]["path"].replace("/",os.path.sep))
				
				if "url" in library["downloads"]["artifact"] and library["downloads"]["artifact"]["url"] != "":
					l["url"] = library["downloads"]["artifact"]["url"]
				
				libraries.append(l)
		else: # dumb
			lBase["dumb"] = True
			if "natives" in library: # natives
				lBaseTwo = copy.deepcopy(lBase)
				lBaseTwo["type"] = "native"
				if not "url" in library:
					lBaseTwo["url"] = "https://libraries.minecraft.net"
				else:
					lBaseTwo["url"] = library["url"]
				
				while len(lBaseTwo["url"]) > 0 and lBaseTwo["url"][-1] == "/": lBaseTwo["url"] = lBaseTwo["url"][:-1]
				lBaseTwo["url"] = lBaseTwo["url"] + "/" + lBaseTwo["filePath"]
				
				for native in library["natives"]:
					l = copy.deepcopy(lBaseTwo)
					l["nativeOS"] = native
					native = "natives-" + native
					l["filePath"] = l["filePath"][:-4] + "-" + native + ".jar"
					l["url"] = l["url"][:-4] + "-" + native + ".jar"
					l["filePathOS"] = p(nativePath,l["filePath"].replace("/",os.path.sep))
					libraries.append(l)
			else: # libraries
				l = copy.deepcopy(lBase)
				if not "url" in library:
					l["url"] = "https://libraries.minecraft.net"
				else:
					l["url"] = library["url"]
				
				while len(l["url"]) > 0 and l["url"][-1] == "/": l["url"] = l["url"][:-1]
				l["url"] = l["url"] + "/" + l["filePath"]
				l["filePathOS"] = p(libraryPath,l["filePath"].replace("/",os.path.sep))
				libraries.append(l)
	
	if os.path.isfile(p(versionPath,version + ".jar")):
		libraries.append({"type":"client","filePathOS":p(versionPath,version + ".jar")})
	
	if "arguments" in clientJson:
		if "game" in clientJson["arguments"]:
			for arg in clientJson["arguments"]["game"]:
				if type(arg) != str: continue
				arguments.append(arg)
		if "jvm" in clientJson["arguments"]:
			for arg in clientJson["arguments"]["jvm"]:
				if type(arg) != str:
					if "value" in arg:
						if type(arg["value"]) != list:
							arg["value"] = [arg["value"]]
						
						if "rules" in arg:
							if checkRules(arg["rules"]) == "allow":
								for value in arg["value"]:
									jvmArguments.append(value)
						else:
							for value in arg["value"]:
								jvmArguments.append(value)
				else:
					jvmArguments.append(arg)
	elif "minecraftArguments" in clientJson:
		margs = clientJson["minecraftArguments"].replace('"',"").split(" ")
		for arg in margs:
			if type(arg) != str: continue
			arguments.append(arg)
	
	return clientJson,libraries,arguments,jvmArguments

global findArgument
def findArgument(args,searchFor):
	for arg in args:
		if arg.startswith(searchFor): return True
	return False