Lua代码加密探索

复杂！代码修改过多，担心修改后影响后序流程。(能力不够)typedefstructLoadF{intn;/*numberofpre-readcharacters*/FILE*f;/*filebeingread*/charbuff[BUFSIZ];/*areaforreadingfile*/}LoadF;staticconstchar*getF(lua_State*L,void*ud,size_t*size){LoadF*lf=(LoadF*)ud;(void)L;/*notused*/if(lf->n>0){/*aretherepre-readcharacterstoberead?*/*size=lf->n;/*returnthem(charsalreadyinbuffer)*/lf->n=0;/*nomorepre-readcharacters*/}else{/*readablockfromfile*//*'fread'canreturn>0*and*settheEOFflag.Ifnextcallto'getF'called'fread',itmightstillwaitforuserinput.Thenextcheckavoidsthisproblem.*/if(feof(lf->f))returnNULL;*size=fread(lf->buff,1,sizeof(lf->buff),lf->f);/*readblock*/}returnlf->buff;}Lua中文件加密流程:--[[auth：zlfdate:2021.12.28note:对指定路径内所有的文件加密，按原文件子路径保存在特定路径中。]]locallfs=require"lfs"localcryption=require"cryption"localM={}locall_Api={}--请勿改动,改动后请随便改动lua的c代码相应文件locall_CiphertextHead="--jm_cipher_lua_file\n"--[[@note检查该文件是否在为指定的格式文件@paramtbFileType需要的文件类型@paramsFileName被检测的文件@returntrue:合适的文件]]functionl_Api.contain_file_type(tbFileType,sFileName)if(nottbFileType)or#tbFileType==0thenreturntrueend--只搜索文件尾部localsFileLen=string.len(sFileName)localnFindPlace=sFileLenfor_,sTypeinpairs(tbFileType)doifstring.find(sFileName,sType,(nFindPlace-string.len(sType)),true)thenreturntrueendendend--[[@note扫描指定目录的文件(可指定文件类型)@paramsRootPath需要扫描的目录@paramtbAllFilePath扫描到的文件存放@paramtbFileType需要的文件类型@returnnil]]functionl_Api.get_all_files(sRootPath,tbAllFilePath,tbFileType)forentryinlfs.dir(sRootPath)doifstring.sub(entry,1,1)~="."thenlocalsPath=sRootPath.."/"..entrylocalsAttr=lfs.attributes(sPath)assert(type(sAttr)=="table")--如果获取不到属性表则报错if(sAttr.mode=="directory")thenl_Api.get_all_files(sPath,tbAllFilePath,tbFileType)--自调用遍历子目录elseifsAttr.mode=="file"thenifl_Api.contain_file_type(tbFileType,sPath)thentable.insert(tbAllFilePath,sPath)endendendendend--[[@TODO:在sRootDir目录下,创建sDirPath中所有的目录]]functionl_Api.mkdir(sRootDir,sDirPath)--forsDirinstring.gmatch(sDirPath,"(/%g+/)")do--log_info("DDDDDDDDDDDD",sDir)--endlocals=0--locale=0localbSign=falselocalsCreatePathwhiletruedolocaln=string.find(sDirPath,"/",s+1)s=nifs==nilthenbreakend--创建目录ifbSignthensCreatePath=sRootDir..string.sub(sDirPath,1,s)--log_info("DDDDDDDDDDDD",sCreatePath)localtbRet={lfs.mkdir(sCreatePath)}--log_info("##############",table.printT(tbRet),sCreatePath)ifnottbRet[1]and(tbRet[3]or0)~=17then--17:文件夹已经存在assert(false,"Can'tcreatedirfaile"..sCreatePath)endendbSign=trueendend--[[@TODO:对指定路径的文件进行加密,加密后存放到指定路径中。可指定文件的需要转换的文件类型2021-12-2814:51:42@sSpecifyPathSource:加密源目录/data/jm/jmserver/jm@sSpecifyPathTarget:加密后输出根目录(需要手动创建好改目录)/data/jm/jmserver/jm/jm_encrypt@sPassWord:密码@tbFileType:需要的文件类型（不指定，所有文件都会被转换）@return@]]functionM.encrypt_path_all_files(sSpecifyPathSource,sSpecifyPathTarget,sPassWord,tbFileType)ifnotsSpecifyPathSourcethenlog_error("jm.tools.encrypt_fileencrypt_path_all_filesmissingparametersSpecifyPathSource")returnendifnotsSpecifyPathTargetthenlog_error("jm.tools.encrypt_fileencrypt_path_all_filesmissingparametersSpecifyPathTarget")returnendifnotsPassWordthenlog_error("jm.tools.encrypt_fileencrypt_path_all_filesmissingparametersPassWord")returnendifnottbFileTypethenlog_error("jm.tools.encrypt_fileencrypt_path_all_filesmissingparametertbFileType")returnend--搜索文件localtbAllFilePath={}l_Api.get_all_files(sSpecifyPathSource,tbAllFilePath,tbFileType);--路径长度localnLenPathSource=string.len(sSpecifyPathSource)--读取文件并加密localsFileContext=nillocalsCiphertext=nillocalsSavePath=nillocalnFilePrfor_,sFilePathinipairs(tbAllFilePath)donFilePr=assert(io.open(sFilePath),"Can'topenfaile:"..sFilePath)sFileContext=nFilePr:read("a")nFilePr:close()sCiphertext=cryption.encryption(sFileContext,sPassWord)--将文件写入到指定路径中--裁切sFileName，将sSpecifyPathSource剔除后，拼接到sSpecifyPathTarget后面sSavePath=sSpecifyPathTarget..string.sub(sFilePath,nLenPathSource+1)l_Api.mkdir(sSpecifyPathTarget,string.sub(sFilePath,nLenPathSource+1))--将文件写入到sSavePath中nFilePr=assert(io.open(sSavePath,"w+"),"Can'tcreatefaile:"..sSavePath)assert(nFilePr:write(l_CiphertextHead),"Can'twritefaile:"..sSavePath)assert(nFilePr:write(sCiphertext),"Can'twritefaile:"..sSavePath)nFilePr:close()--breakendend--[[@paramsciphertext密文@returnstring明文ornil]]functionM.decrypt(sCiphertext)--plaintext--log_error(":#############",sFileName)--测试解密--localtemp=cryption.decryption(sCiphertext,sPassWord)--log_error("=============\n",temp)endfunctionM.test()--localtbAllFilePath={}--localtbFileType={".lua"}--l_Api.get_all_files(lfs.currentdir(),tbAllFilePath,tbFileType);--log_info("#############",table.printT(tbAllFilePath))M.encrypt_path_all_files(lfs.currentdir().."/jm",lfs.currentdir().."/jm/jm_encrypt","dafasgsfdg",{".lua",".pb"})log_info("##############",string.len(l_CiphertextHead))--l_Api.mkdir("/data/jm/jmserver","/jm_encrypt/config/DockerTag.lua")endreturnM -完-