diff --git a/pak/CMakeLists.txt b/pak/CMakeLists.txt new file mode 100644 index 00000000..c1c802c4 --- /dev/null +++ b/pak/CMakeLists.txt @@ -0,0 +1,26 @@ +cmake_minimum_required(VERSION 2.8) +project(chrome-pak C) +option(LGPL "Use custom startfiles on windows for smaller binary, requiring GNU Lesser General Public License 2.1+." ON) +if (NOT CMAKE_BUILD_TYPE) + set(CMAKE_BUILD_TYPE "Release" CACHE STRING "Choose the type of build, options are: Debug Release." FORCE) +endif (NOT CMAKE_BUILD_TYPE) +if (MSVC) + set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /MT /wd4996 /wd4068") + set(CompilerFlags + CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_DEBUG CMAKE_CXX_FLAGS_RELEASE + CMAKE_C_FLAGS CMAKE_C_FLAGS_DEBUG CMAKE_C_FLAGS_RELEASE) + foreach (CompilerFlag ${CompilerFlags}) + string(REPLACE "/MD" "/MT" ${CompilerFlag} "${${CompilerFlag}}") + endforeach () +endif () +if ("${CMAKE_C_COMPILER_ID}" STREQUAL "GNU") + set(CMAKE_C_FLAGS "-O3 -Os -pipe -Wall -Wextra -fmerge-all-constants -Wl,--gc-sections,--build-id=none") + set(CMAKE_C_FLAGS_DEBUG "-g") + set(CMAKE_C_FLAGS_RELEASE "-s") + if (WIN32 AND LGPL) + set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -nostartfiles -D_LGPL") + endif () + set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_C_FLAGS}") +endif () +aux_source_directory(${CMAKE_CURRENT_SOURCE_DIR} DIR_SRCS) +add_executable(pak ${DIR_SRCS}) diff --git a/pak/LICENSE b/pak/LICENSE new file mode 100644 index 00000000..d0db1b0e --- /dev/null +++ b/pak/LICENSE @@ -0,0 +1,21 @@ +MIT License + +Copyright (c) 2018 myfreeer + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 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Here is a sample; alter the names: + + Yoyodyne, Inc., hereby disclaims all copyright interest in the + library `Frob' (a library for tweaking knobs) written by James Random + Hacker. + + , 1 April 1990 + Ty Coon, President of Vice + +That's all there is to it! diff --git a/pak/README.md b/pak/README.md new file mode 100644 index 00000000..c47bed11 --- /dev/null +++ b/pak/README.md @@ -0,0 +1,64 @@ +# chrome-pak-customizer +a simple batch tool to customize pak files in chrome or chromium-based browser + +## Badges +[![Build status](https://ci.appveyor.com/api/projects/status/4ji3guqh4yyjfiaa?svg=true)](https://ci.appveyor.com/project/myfreeer/chrome-pak-customizer) +[![Download](https://img.shields.io/github/downloads/myfreeer/chrome-pak-customizer/total.svg)](https://github.com/myfreeer/chrome-pak-customizer/releases) +[![Latest Release](https://img.shields.io/github/release/myfreeer/chrome-pak-customizer.svg)](https://github.com/myfreeer/chrome-pak-customizer/releases/latest) + +## License +* Windows builds are licensed `LGPL 2.1+` **by default**, can be disabled by appending `-DLGPL=OFF` to cmake. +* Non-windows builds and builds with `-DLGPL=OFF` are licensed MIT. + +## Usage (Windows Only) +1. Download `chrome-pak.7z` from [releases](https://github.com/myfreeer/chrome-pak-customizer/releases) and extract it to any folder. +2. Drag the pak file and drop it to `unpack.bat`. +3. The pak file would be extracted to subfolder of the folder of the pak file, +with the same name of the pak file with an `_unpacked` suffix. +4. (Optional) modify extracted files. +5. Drag `pak_index.ini` to `pack.bat`. +6. Repacked pak file would be in the same folder of `pak_index.ini` with a name like `pak_index_packed.pak`. + +There is also a [GIF Guide](https://github.com/myfreeer/chrome-pak-customizer/wiki/GIF-Guide-v2) on windows. + +## Usage (Command line) +``` +pak.exe -u pak_file destination_path +Unpack chrome pak file at pak_file to destination_path. + +pak.exe -p pak_index_file destination_pak_file +Pack chrome pak file using pak_index_file to destination_pak_file. +pak_index_file would be found in unpacked path. + +Note: existing destination files would be overwritten +``` + +## Building +### Prerequires +* gcc +* cmake +* ninja + +### Build script example +```bash +# Getting source +git clone https://github.com/myfreeer/chrome-pak-customizer --branch=develop --single-branch +cd chrome-pak-customizer + +# Creating folder for build +mkdir -p build +cd build + +# Running cmake +cmake -GNinja -DLGPL=OFF .. + +# Building +ninja +``` +### CMake options +* `LGPL`: Enable LGPL 2.1+ licensed custom startfiles on windows for smaller binary + +## Credits +* +* +* diff --git a/pak/appveyor.bat b/pak/appveyor.bat new file mode 100644 index 00000000..698e8f00 --- /dev/null +++ b/pak/appveyor.bat @@ -0,0 +1,40 @@ +echo Syncing msys2 packages... +C:\msys64\usr\bin\pacman -Sq --noconfirm --needed --noprogressbar --ask=20 mingw-w64-x86_64-ninja mingw-w64-i686-ninja +rem C:\msys64\usr\bin\pacman -Scq --noconfirm + +echo Fetching test files +if not exist tests mkdir tests +cd tests +for %%i in (test_v4_474896_1.pak test_v4_474896_2.pak test_v4_474896_r.pak test_v5_550886_1.pak test_v5_550886_2.pak test_v5_550886_r.pak) do if not exist "%%~i" appveyor.exe DownloadFile "https://github.com/myfreeer/chrome-pak-customizer/releases/download/1.0/%%~i" +cd .. + +echo Building and testing 64-bit version... +set MSYSTEM=MINGW64 +call C:\msys64\usr\bin\bash -lc "cd \"$APPVEYOR_BUILD_FOLDER\" && exec ./test.sh" +move /Y .\build_x86_64-w64-mingw32\pak.exe .\pak_mingw64.exe + +echo Building and testing 32-bit version... +set MSYSTEM=MINGW32 +call C:\msys64\usr\bin\bash -lc "cd \"$APPVEYOR_BUILD_FOLDER\" && exec ./test.sh" +move /Y .\build_i686-w64-mingw32\pak.exe .\pak_mingw32.exe + +echo Building with msvc 32-bit... +mkdir msvc_32 +cd msvc_32 +cmake .. +cmake --build . --target ALL_BUILD --config Release +move /Y .\Release\pak.exe ..\pak_msvc32.exe +cd .. + +echo Building with msvc 64-bit... +mkdir msvc_64 +cd msvc_64 +cmake -G "Visual Studio 14 2015 Win64" .. +cmake --build . --target ALL_BUILD --config Release +move /Y .\Release\pak.exe ..\pak_msvc64.exe +cd .. + +echo Packaging... +7z a -mx9 chrome-pak.7z .\pak_mingw64.exe .\pak_mingw32.exe .\pack.bat .\unpack.bat +7z a -mx9 chrome-pak_msvc.7z .\pak_msvc32.exe .\pak_msvc64.exe .\pack.bat .\unpack.bat +echo Done. \ No newline at end of file diff --git a/pak/appveyor.yml b/pak/appveyor.yml new file mode 100644 index 00000000..18d69a47 --- /dev/null +++ b/pak/appveyor.yml @@ -0,0 +1,25 @@ +version: 2.0-{build} +skip_tags: true +build_script: +- cmd: >- + appveyor.bat +on_failure: +- 7z a -mx9 -r fail.7z *.exe *.sln *.txt *.log +- appveyor.exe PushArtifact fail.7z +shallow_clone: true +test: off +artifacts: +- path: pak_mingw64.exe +- path: pak_mingw32.exe +- path: pak_msvc64.exe +- path: pak_msvc32.exe +- path: chrome-pak.7z +- path: chrome-pak_msvc.7z +cache: + - tests +skip_commits: + files: + - 'LICENSE' + - '*.md' + - '.gitingore' + - '.gitattributes' \ No newline at end of file diff --git a/pak/commandlinetoargva.h b/pak/commandlinetoargva.h new file mode 100644 index 00000000..f0ecb37a --- /dev/null +++ b/pak/commandlinetoargva.h @@ -0,0 +1,235 @@ +#pragma once +#ifndef COMMANDLINETOARGVA_H +#define COMMANDLINETOARGVA_H + +#include +#include +// https://github.com/wine-mirror/wine/blob/5946973021285dd6ecb8df224956fea4817f8fed/dlls/shell32/shell32_main.c +// https://github.com/futurist/CommandLineToArgvA/blob/09765ffef215f0a066d6b0ea5c1edda88b6739af/CommandLineToArgvA.c +/************************************************************************* + * CommandLineToArgvA [SHELL32.@] + * + * We must interpret the quotes in the command line to rebuild the argv + * array correctly: + * - arguments are separated by spaces or tabs + * - quotes serve as optional argument delimiters + * '"a b"' -> 'a b' + * - escaped quotes must be converted back to '"' + * '\"' -> '"' + * - consecutive backslashes preceding a quote see their number halved with + * the remainder escaping the quote: + * 2n backslashes + quote -> n backslashes + quote as an argument delimiter + * 2n+1 backslashes + quote -> n backslashes + literal quote + * - backslashes that are not followed by a quote are copied literally: + * 'a\b' -> 'a\b' + * 'a\\b' -> 'a\\b' + * - in quoted strings, consecutive quotes see their number divided by three + * with the remainder modulo 3 deciding whether to close the string or not. + * Note that the opening quote must be counted in the consecutive quotes, + * that's the (1+) below: + * (1+) 3n quotes -> n quotes + * (1+) 3n+1 quotes -> n quotes plus closes the quoted string + * (1+) 3n+2 quotes -> n+1 quotes plus closes the quoted string + * - in unquoted strings, the first quote opens the quoted string and the + * remaining consecutive quotes follow the above rule. + */ +LPSTR WINAPI *CommandLineToArgvA(LPCSTR lpCmdline, int *numargs) { + DWORD argc; + LPSTR *argv; + LPCSTR s; + LPSTR d; + LPSTR cmdline; + int qcount, bcount; + + if (!numargs) { + SetLastError(ERROR_INVALID_PARAMETER); + return NULL; + } + + if (lpCmdline == NULL || *lpCmdline == 0) { + /* Return the path to the executable */ + DWORD len, deslen = MAX_PATH, size; + + size = sizeof(LPSTR) * 2 + deslen * sizeof(char); + for (;;) { + if (!(argv = LocalAlloc(LMEM_FIXED, size))) + return NULL; + len = GetModuleFileNameA(0, (LPSTR)(argv + 2), deslen); + if (!len) { + LocalFree(argv); + return NULL; + } + if (len < deslen) + break; + deslen *= 2; + size = sizeof(LPSTR) * 2 + deslen * sizeof(char); + LocalFree(argv); + } + argv[0] = (LPSTR)(argv + 2); + argv[1] = NULL; + *numargs = 1; + + return argv; + } + + /* --- First count the arguments */ + argc = 1; + s = lpCmdline; + /* The first argument, the executable path, follows special rules */ + if (*s == '"') { + /* The executable path ends at the next quote, no matter what */ + s++; + while (*s) + if (*s++ == '"') + break; + } else { + /* The executable path ends at the next space, no matter what */ + while (*s && *s != ' ' && *s != '\t') + s++; + } + /* skip to the first argument, if any */ + while (*s == ' ' || *s == '\t') + s++; + if (*s) + argc++; + + /* Analyze the remaining arguments */ + qcount = bcount = 0; + while (*s) { + if ((*s == ' ' || *s == '\t') && qcount == 0) { + /* skip to the next argument and count it if any */ + while (*s == ' ' || *s == '\t') + s++; + if (*s) + argc++; + bcount = 0; + } else if (*s == '\\') { + /* '\', count them */ + bcount++; + s++; + } else if (*s == '"') { + /* '"' */ + if ((bcount & 1) == 0) + qcount++; /* unescaped '"' */ + s++; + bcount = 0; + /* consecutive quotes, see comment in copying code below */ + while (*s == '"') { + qcount++; + s++; + } + qcount = qcount % 3; + if (qcount == 2) + qcount = 0; + } else { + /* a regular character */ + bcount = 0; + s++; + } + } + + /* Allocate in a single lump, the string array, and the strings that go + * with it. This way the caller can make a single LocalFree() call to free + * both, as per MSDN. + */ + argv = LocalAlloc(LMEM_FIXED, (argc + 1) * sizeof(LPSTR) + + (strlen(lpCmdline) + 1) * sizeof(char)); + if (!argv) + return NULL; + cmdline = (LPSTR)(argv + argc + 1); + strcpy(cmdline, lpCmdline); + + /* --- Then split and copy the arguments */ + argv[0] = d = cmdline; + argc = 1; + /* The first argument, the executable path, follows special rules */ + if (*d == '"') { + /* The executable path ends at the next quote, no matter what */ + s = d + 1; + while (*s) { + if (*s == '"') { + s++; + break; + } + *d++ = *s++; + } + } else { + /* The executable path ends at the next space, no matter what */ + while (*d && *d != ' ' && *d != '\t') + d++; + s = d; + if (*s) + s++; + } + /* close the executable path */ + *d++ = 0; + /* skip to the first argument and initialize it if any */ + while (*s == ' ' || *s == '\t') + s++; + if (!*s) { + /* There are no parameters so we are all done */ + argv[argc] = NULL; + *numargs = (int) argc; + return argv; + } + + /* Split and copy the remaining arguments */ + argv[argc++] = d; + qcount = bcount = 0; + while (*s) { + if ((*s == ' ' || *s == '\t') && qcount == 0) { + /* close the argument */ + *d++ = 0; + bcount = 0; + + /* skip to the next one and initialize it if any */ + do { + s++; + } while (*s == ' ' || *s == '\t'); + if (*s) + argv[argc++] = d; + } else if (*s == '\\') { + *d++ = *s++; + bcount++; + } else if (*s == '"') { + if ((bcount & 1) == 0) { + /* Preceded by an even number of '\', this is half that + * number of '\', plus a quote which we erase. + */ + d -= bcount / 2; + qcount++; + } else { + /* Preceded by an odd number of '\', this is half that + * number of '\' followed by a '"' + */ + d = d - bcount / 2 - 1; + *d++ = '"'; + } + s++; + bcount = 0; + /* Now count the number of consecutive quotes. Note that qcount + * already takes into account the opening quote if any, as well as + * the quote that lead us here. + */ + while (*s == '"') { + if (++qcount == 3) { + *d++ = '"'; + qcount = 0; + } + s++; + } + if (qcount == 2) + qcount = 0; + } else { + /* a regular character */ + *d++ = *s++; + bcount = 0; + } + } + *d = '\0'; + argv[argc] = NULL; + *numargs = (int) argc; + + return argv; +} +#endif diff --git a/pak/gitignore b/pak/gitignore new file mode 100644 index 00000000..fcec73bb --- /dev/null +++ b/pak/gitignore @@ -0,0 +1,68 @@ +# Prerequisites +*.d + +# Object files +*.o +*.ko +*.obj +*.elf + +# Linker output +*.ilk +*.map +*.exp + +# Precompiled Headers +*.gch +*.pch + +# Libraries +*.lib +*.a +*.la +*.lo + +# Shared objects (inc. Windows DLLs) +*.dll +*.so +*.so.* +*.dylib + +# Executables +*.exe +*.out +*.app +*.i*86 +*.x86_64 +*.hex + +# Debug files +*.dSYM/ +*.su +*.idb +*.pdb + +# Kernel Module Compile Results +*.mod* +*.cmd +.tmp_versions/ +modules.order +Module.symvers +Mkfile.old +dkms.conf + +# pak file +*.pak + +# pak unpacked files +tests/* + +# builds +build_*/* + +# codeblocks +bin/* +obj/* +*.cbp +*.depend +*.layout \ No newline at end of file diff --git a/pak/main.c b/pak/main.c new file mode 100644 index 00000000..62e1d1a4 --- /dev/null +++ b/pak/main.c @@ -0,0 +1,178 @@ +#if defined(_WIN32) && defined(_LGPL) +#include "main.h" +#endif +#include "pak_defs.h" +#include "pak_file.h" +#include "pak_file_io.h" +#include "pak_get_file_type.h" +#include "pak_header.h" +#include "pak_pack.h" + +#define HELP_TEXT \ + "Pack/Unpack chrome pak file.\n\n" \ + "%s -u pak_file destination_path\n" \ + "Unpack chrome pak file at pak_file to destination_path.\n\n" \ + "%s -p pak_index_file destination_pak_file\n" \ + "Pack chrome pak file using pak_index_file to destination_pak_file.\n" \ + "pak_index_file would be found in unpacked path.\n" \ + "\nNote: existing destination files would be overwritten\n" + +void printHelp() { + // get self path + char selfName[PATH_MAX]; +#ifdef _WIN32 + GetModuleFileName(NULL, selfName, PATH_MAX); + // get file name from path + const char *ptr = strrchr(selfName, '\\'); +#else + int ret = readlink("/proc/self/exe", selfName, sizeof(selfName) - 1); + if (ret == -1) + strcpy(selfName, "pak"); + else + selfName[ret] = 0; + // get file name from path + const char *ptr = strrchr(selfName, '/'); +#endif + + if (ptr != NULL) + strcpy(selfName, ptr + 1); + + printf(HELP_TEXT, selfName, selfName); +} + +int pakUnpackPath(char *pakFilePath, char *outputPath) { + PakFile pakFile = readFile(pakFilePath); + if (pakFile.buffer == NULL) { + printf("Error: cannot read pak file %s", pakFilePath); + return 1; + } + MyPakHeader myHeader; + if (!pakParseHeader(pakFile.buffer, &myHeader)) { + return 2; + } + + if (!pakCheckFormat(pakFile.buffer, pakFile.size)) { + return 3; + } + + if (!pakUnpack(pakFile.buffer, outputPath)) { + freeFile(pakFile); + return 4; + } + freeFile(pakFile); + return 0; +} + +int pakPackIndexFile(char *indexPath, char *outputFilePath) { + int returnCode = 0; + PakFile pakPackedFile = NULL_File; + PakFile pakIndexFile = NULL_File; + char *filesPath = NULL; + bool freeFilesPath = false; + char *outputFilePath2 = NULL; + char *index = strrchr(indexPath, '\\'); + if (index == NULL) { + index = strrchr(indexPath, '/'); + } + if (index != NULL && index > indexPath) { + filesPath = calloc(index - indexPath + 2, sizeof(char)); + if (filesPath == NULL) { + returnCode = 5; + goto PAK_PACK_INDEX_END; + } + strncpy(filesPath, indexPath, index - indexPath + 1); + freeFilesPath = true; + } else { + filesPath = ""; + } + + pakIndexFile = readFile(indexPath); + if (pakIndexFile.buffer == NULL) { + printf("Error: cannot read file %s", indexPath); + returnCode = 6; + goto PAK_PACK_INDEX_END; + } + + // workaround outputFilePath="" after pakPack() + outputFilePath2 = calloc(strlen(outputFilePath) + 1, sizeof(char)); + if (outputFilePath2 == NULL) { + returnCode = 7; + goto PAK_PACK_INDEX_END; + } + strcpy(outputFilePath2, outputFilePath); + + pakPackedFile = pakPack(pakIndexFile, filesPath); + if (pakPackedFile.buffer == NULL) { + returnCode = 8; + goto PAK_PACK_INDEX_END; + } + if (!writeFile(outputFilePath2, pakPackedFile)) { + printf("Error: cannot write to %s", outputFilePath2); + returnCode = 9; + goto PAK_PACK_INDEX_END; + } + +PAK_PACK_INDEX_END: + if (pakIndexFile.buffer != NULL) + freeFile(pakIndexFile); + if (pakPackedFile.buffer != NULL) + freeFile(pakPackedFile); + if (outputFilePath2 != NULL) + free(outputFilePath2); + if (freeFilesPath && filesPath != NULL) + free(filesPath); + return returnCode; +} + +#define PAK_FLAGS_HELP 0 +#define PAK_FLAGS_UNPACK 1 +#define PAK_FLAGS_PACK 2 +int main(int argc, char *argv[]) { + uint32_t flags = 0; + bool process = false; + char path1[PATH_MAX]; + memset(path1, 0, PATH_MAX); + char path2[PATH_MAX]; + memset(path2, 0, PATH_MAX); + for (int i = 1; i < argc; i++) { + char *arg = argv[i]; + bool isConfig = false; + if (*arg != '\0' && (*arg == '/' || *arg == '-')) { + arg++; + isConfig = true; + } + if (isConfig) { + switch (*arg) { + case 'h': + flags = PAK_FLAGS_HELP; + break; + case 'a': + case 'p': + flags = PAK_FLAGS_PACK; + break; + case 'u': + case 'e': + case 'x': + flags = PAK_FLAGS_UNPACK; + break; + } + } + if ((flags == PAK_FLAGS_UNPACK || flags == PAK_FLAGS_PACK) && + argc - i > 2) { + strcpy(path1, argv[i + 1]); + strcpy(path2, argv[i + 2]); + process = true; + break; + } + } + if (flags == PAK_FLAGS_HELP || !process) { + printHelp(); + return 0; + } + if (flags == PAK_FLAGS_UNPACK) { + return pakUnpackPath(path1, path2); + } else if (flags == PAK_FLAGS_PACK) { + return pakPackIndexFile(path1, path2); + } + return 32; +} diff --git a/pak/main.h b/pak/main.h new file mode 100644 index 00000000..c4f9d755 --- /dev/null +++ b/pak/main.h @@ -0,0 +1,31 @@ +// Small alternative startfile for main() +// Build with gcc perms: +// -nostartfiles +#pragma once +#ifndef STARTFILE_MAIN_H +#define STARTFILE_MAIN_H +#include + +#ifdef UNICODE +#define wmain(argc, argv) _wmain(argc, argv) +int wmain(int argc, wchar_t *argv[]); +#else +#include "commandlinetoargva.h" +// workaround undefined reference to `_pei386_runtime_relocator' +#define main(argc, argv) _main(argc, argv) +int main(int argc, char *argv[]); +#endif +int __cdecl mainCRTStartup() { + int __arg_c; +#ifdef UNICODE + wchar_t **__arg_v = CommandLineToArgvW(GetCommandLineW(), &__arg_c); + const int exitCode = wmain(__arg_c, __arg_v); +#else + char **__arg_v = CommandLineToArgvA(GetCommandLineA(), &__arg_c); + const int exitCode = main(__arg_c, __arg_v); +#endif + LocalFree(__arg_v); + ExitProcess((UINT) exitCode); + return exitCode; +} +#endif diff --git a/pak/pack.bat b/pak/pack.bat new file mode 100644 index 00000000..b67bf4bd --- /dev/null +++ b/pak/pack.bat @@ -0,0 +1,18 @@ +@echo off +setlocal EnableExtensions EnableDelayedExpansion +if exist "%SystemRoot%\SysWOW64\cmd.exe" set x64=1 +pushd "%~dp0" +set core_x64=pak_mingw64.exe +if not exist "%core_x64%" if exist pak_msvc64.exe set core_x64=pak_msvc64.exe +set core_x86=pak_mingw32.exe +if not exist "%core_x86%" if exist pak_msvc32.exe set core_x86=pak_msvc32.exe +set "WORK_DIR=%~dp0" +set "file=%~1" +set "pack_file=%~dpn1_packed.pak" +if not exist "%WORK_DIR%" md "%WORK_DIR%" +pushd "%WORK_DIR%" +if "%x64%"=="1" ( set core=%core_x64% ) else ( set core=%core_x86% ) +if not exist %core% echo core program (%core%) NOT FOUND! &pause &exit +if exist "%file%" %core% -p "%file%" "%pack_file%" +if exist "%pack_file%" echo packed "%pack_file%" from "%file%" +timeout /t 5||pause \ No newline at end of file diff --git a/pak/pak_defs.h b/pak/pak_defs.h new file mode 100644 index 00000000..4e8565e7 --- /dev/null +++ b/pak/pak_defs.h @@ -0,0 +1,99 @@ +#pragma once +#ifndef __PAK_DEFINITIONS_H__ +#define __PAK_DEFINITIONS_H__ +// msvc hacks +#ifdef _MSC_VER +#include +#define ftello ftell +#define fseeko fseek +#define PATH_MAX MAX_PATH +#endif +// linux header +#ifdef __linux__ +#include +#include +#endif +// macOS headers +#ifdef __APPLE__ +#include +#include +#endif + +#include +#include + +#pragma pack(push) +#pragma pack(1) + +// v5 header: +// uint32(version), uint8(encoding), 3 bytes padding, +// uint16(resource_count), uint16(alias_count) +typedef struct PakHeaderV5 { + uint32_t version; + uint8_t encoding; + uint8_t _padding[3]; + uint16_t resource_count; + uint16_t alias_count; +} PakHeaderV5; + +// v4 header: uint32(version), uint32(resource_count), uint8(encoding) +typedef struct PakHeaderV4 { + uint32_t version; + uint32_t resource_count; + uint8_t encoding; +} PakHeaderV4; + +// Entry: uint16_t resourceId; uint32_t offset; +typedef struct PakEntry { + uint16_t resource_id; + uint32_t offset; +} PakEntry; + +// Alias: uint16_t resourceId; uint16_t entry_index; +typedef struct PakAlias { + uint16_t resource_id; + uint16_t entry_index; +} PakAlias; + +#pragma pack(pop) + +/** + * Get pak version from pak buffer. + * @param void *buffer - pointer to pak. + * @return uint32_t - pak version. + */ +#define pakGetVerison(buffer) (*(uint32_t *)(buffer)) +#define PAK_HEADER_SIZE_V4 sizeof(PakHeaderV4) +#define PAK_HEADER_SIZE_V5 sizeof(PakHeaderV5) +#define PAK_ENTRY_SIZE sizeof(PakEntry) +#define PAK_ALIAS_SIZE sizeof(PakAlias) + +#define PAK_ERROR_UNKNOWN_VER "Error: Unknown pak version." +#define PAK_ERROR_TRUNCATED "Error: Probably truncated pak file." +#define PAK_ERROR_BROKEN_INDEX "Error: Probably broken pak index file." + +typedef struct MyPakHeader { + uint32_t version; + uint32_t resource_count; + uint16_t alias_count; + uint8_t encoding; + uint8_t size; +} MyPakHeader; + +typedef struct PakFile { + uint16_t id; + uint32_t size; + void *buffer; +} PakFile; + +// file-io +#define NULL_File ((PakFile){0, 0, NULL}) +#define freeFile(file) (free((file).buffer)) + +// pack/unpack +#define PAK_BUFFER_BLOCK_SIZE 4096 +#define PAK_BUFFER_MIN_FREE_SIZE 512 +#define PAK_INDEX_GLOBAL_TAG "[Global]" +#define PAK_INDEX_RES_TAG "[Resources]" +#define PAK_INDEX_ALIAS_TAG "[Alias]" +#endif // __PAK_DEFINITIONS_H__ diff --git a/pak/pak_file.c b/pak/pak_file.c new file mode 100644 index 00000000..9fb75470 --- /dev/null +++ b/pak/pak_file.c @@ -0,0 +1,94 @@ +#include "pak_file.h" +PakFile pakPackFiles(MyPakHeader *myHeader, PakFile *pakResFile, + PakAlias *pakAlias) { + uint8_t *buffer = NULL; + uint32_t size = myHeader->size; + uint32_t entrySize = (myHeader->resource_count + 1) * PAK_ENTRY_SIZE; + uint32_t aliasSize = myHeader->alias_count * PAK_ALIAS_SIZE; + size += entrySize + aliasSize; + for (uint32_t i = 0; i < myHeader->resource_count; i++) { + size += (pakResFile + i)->size; + } + buffer = calloc(size, sizeof(uint8_t)); + if (buffer == NULL) + return NULL_File; + uint32_t offset = pakWriteHeader(myHeader, buffer); + if (offset == 0) { + free(buffer); + return NULL_File; + } + + PakEntry *enrtyPtr = (PakEntry *)(buffer + offset); + uint8_t *filePtr = buffer + offset + entrySize + aliasSize; + for (uint32_t i = 0; i < myHeader->resource_count; i++) { + memcpy(filePtr, pakResFile->buffer, pakResFile->size); + enrtyPtr->resource_id = pakResFile->id; + enrtyPtr->offset = filePtr - buffer; + filePtr += pakResFile->size; + enrtyPtr++; + pakResFile++; + } + + enrtyPtr->resource_id = 0; + enrtyPtr->offset = (pakResFile - 1)->size + (enrtyPtr - 1)->offset; + void *aliasPtr = (void *)(enrtyPtr + 1); + memcpy(aliasPtr, pakAlias, aliasSize); + PakFile pakFile; + pakFile.buffer = buffer; + pakFile.size = size; + return pakFile; +} + +PakFile pakGetFile(uint8_t *pakBuffer, uint16_t id) { + PakFile pakFile = NULL_File; + MyPakHeader myHeader; + if (!pakParseHeader(pakBuffer, &myHeader)) { + return NULL_File; + } + PakEntry *entryPtr = (PakEntry *)(pakBuffer + myHeader.size); + if (myHeader.version == 5) { + PakAlias *aliasPtr = + (PakAlias *)(pakBuffer + myHeader.size + + (myHeader.resource_count + 1) * PAK_ENTRY_SIZE); + for (uint16_t i = 0; i < myHeader.alias_count; i++) { + if (aliasPtr->resource_id == id) { + entryPtr += aliasPtr->entry_index; + pakFile.buffer = pakBuffer + entryPtr->offset; + pakFile.size = (entryPtr + 1)->offset - entryPtr->offset; + return pakFile; + } + } + } + for (uint32_t i = 0; i < myHeader.resource_count; i++) { + if (entryPtr->resource_id == id) { + pakFile.buffer = pakBuffer + entryPtr->offset; + pakFile.size = (entryPtr + 1)->offset - entryPtr->offset; + return pakFile; + } + entryPtr++; + } + return NULL_File; +} + +PakFile *pakGetFiles(uint8_t *buffer) { + PakFile *pakResFile = NULL; + MyPakHeader myHeader; + if (!pakParseHeader(buffer, &myHeader)) { + return NULL; + } + pakResFile = (PakFile *)calloc(myHeader.resource_count, sizeof(PakFile)); + PakFile *returnValue = pakResFile; + if (pakResFile == NULL) { + return NULL; + } + PakEntry *pakEntryPtr = (PakEntry *)(buffer + myHeader.size); + for (uint32_t i = 0; i < myHeader.resource_count; i++) { + uint32_t offset = pakEntryPtr->offset; + pakResFile->id = pakEntryPtr->resource_id; + pakResFile->buffer = buffer + offset; + pakEntryPtr++; + pakResFile->size = pakEntryPtr->offset - offset; + pakResFile++; + } + return returnValue; +} diff --git a/pak/pak_file.h b/pak/pak_file.h new file mode 100644 index 00000000..22bfa3b4 --- /dev/null +++ b/pak/pak_file.h @@ -0,0 +1,38 @@ +#pragma once +#ifndef __PAK_FILE_H__ +#define __PAK_FILE_H__ +#include +#include +#include + +#include "pak_defs.h" +#include "pak_header.h" + +/** + * Package a pak file, returns NULL_File on failure. + * Note: this would allocate memory. + * @param MyPakHeader *myHeader - pointer to MyPakHeader struct. + * @param PakFile *pakResFile - pointer to all resource files. + * @param PakAlias *pakAlias - pointer to all alias. + * @return PakFile - the packed file. + */ +PakFile pakPackFiles(MyPakHeader *myHeader, PakFile *pakResFile, + PakAlias *pakAlias); + +/** + * Get a single file from pak, returns NULL_File on failure. + * @param void *pakBuffer - pointer to pak. + * @param uint16_t *id - target file id. + * @return PakFile - the target file. + */ +PakFile pakGetFile(uint8_t *pakBuffer, uint16_t id); + +/** + * Get all files from pak, returns NULL on failure. + * Note: this would allocate memory. + * @param void* buffer - pointer to pak. + * @return PakFile* - pointer to all files in pak. + */ +PakFile *pakGetFiles(uint8_t *buffer); + +#endif // __PAK_FILE_H__ diff --git a/pak/pak_file_io.c b/pak/pak_file_io.c new file mode 100644 index 00000000..860e3378 --- /dev/null +++ b/pak/pak_file_io.c @@ -0,0 +1,41 @@ +#include "pak_file_io.h" + +PakFile readFile(const char *fileName) { + PakFile file; + /* declare a file pointer */ + FILE *filePtr = fopen(fileName, "rb"); + /* quit if the file does not exist */ + if (filePtr == NULL) + return NULL_File; + + /* Get the number of bytes */ + fseeko(filePtr, 0, SEEK_END); + file.size = (uint32_t) ftello(filePtr); + + /* reset the file position indicator to + the beginning of the file */ + fseeko(filePtr, 0, SEEK_SET); + + /* grab sufficient memory for the + buffer to hold the text */ + file.buffer = calloc(file.size + 1, sizeof(uint8_t)); + + /* memory error */ + if (file.buffer == NULL) + return NULL_File; + + /* copy all the text into the buffer */ + fread(file.buffer, sizeof(uint8_t), file.size, filePtr); + fclose(filePtr); + + return file; +} + +bool writeFile(const char *fileName, const PakFile file) { + FILE *filePtr = fopen(fileName, "wb"); + if (filePtr == NULL) + return false; + const size_t result = fwrite(file.buffer, sizeof(uint8_t), file.size, filePtr); + fclose(filePtr); + return (result == file.size); +} diff --git a/pak/pak_file_io.h b/pak/pak_file_io.h new file mode 100644 index 00000000..94134ebc --- /dev/null +++ b/pak/pak_file_io.h @@ -0,0 +1,26 @@ +#pragma once +#ifndef __PAK_FILE_IO_H__ +#define __PAK_FILE_IO_H__ + +#include "pak_defs.h" +#include +#include +#include + +/** + * Read a file into memory, returns NULL_File on failure. + * Note: this would allocate memory. + * @param const char *fileName - target file name. + * @return PakFile - target file content. + */ +PakFile readFile(const char *fileName); + +/** + * Write a file to storage, this would overwrite existing file. + * @param const char *fileName - target file name. + * @param PakFile file - target file content. + * @return bool - succeed or not. + */ +bool writeFile(const char *fileName, const PakFile file); + +#endif // __PAK_FILE_IO_H__ diff --git a/pak/pak_get_file_type.c b/pak/pak_get_file_type.c new file mode 100644 index 00000000..c49c660d --- /dev/null +++ b/pak/pak_get_file_type.c @@ -0,0 +1,27 @@ +#include "pak_get_file_type.h" + +static const FileType FILE_TYPES[] = { + PAK_GEN_FILE_TYPE(".png", "\x89\x50\x4E\x47\x0D\x0A\x1A\x0A"), + PAK_GEN_FILE_TYPE(".html", ""), + PAK_GEN_FILE_TYPE(".html", ""), + PAK_GEN_FILE_TYPE(".html", ""), + PAK_GEN_FILE_TYPE(".html", "