746dddc067
* Map is unnecessary and inefficient in almost every case. * Replaced by the new HashMap. * Renamed Map to RBMap and Set to RBSet for cases that still make sense (order matters) but use is discouraged. There were very few cases where replacing by HashMap was undesired because keeping the key order was intended. I tried to keep those (as RBMap) as much as possible, but might have missed some. Review appreciated!
465 lines
15 KiB
C++
465 lines
15 KiB
C++
/*************************************************************************/
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/* app_packager.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#include "app_packager.h"
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#include "editor/editor_node.h"
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#include "editor/editor_paths.h"
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String AppxPackager::hash_block(const uint8_t *p_block_data, size_t p_block_len) {
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unsigned char hash[32];
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char base64[45];
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CryptoCore::sha256(p_block_data, p_block_len, hash);
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size_t len = 0;
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CryptoCore::b64_encode((unsigned char *)base64, 45, &len, (unsigned char *)hash, 32);
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base64[44] = '\0';
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return String(base64);
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}
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void AppxPackager::make_block_map(const String &p_path) {
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Ref<FileAccess> tmp_file = FileAccess::open(p_path, FileAccess::WRITE);
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tmp_file->store_string("<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>");
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tmp_file->store_string("<BlockMap xmlns=\"http://schemas.microsoft.com/appx/2010/blockmap\" HashMethod=\"http://www.w3.org/2001/04/xmlenc#sha256\">");
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for (int i = 0; i < file_metadata.size(); i++) {
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FileMeta file = file_metadata[i];
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tmp_file->store_string(
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"<File Name=\"" + file.name.replace("/", "\\") + "\" Size=\"" + itos(file.uncompressed_size) + "\" LfhSize=\"" + itos(file.lfh_size) + "\">");
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for (int j = 0; j < file.hashes.size(); j++) {
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tmp_file->store_string("<Block Hash=\"" + file.hashes[j].base64_hash + "\" ");
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if (file.compressed) {
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tmp_file->store_string("Size=\"" + itos(file.hashes[j].compressed_size) + "\" ");
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}
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tmp_file->store_string("/>");
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}
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tmp_file->store_string("</File>");
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}
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tmp_file->store_string("</BlockMap>");
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}
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String AppxPackager::content_type(String p_extension) {
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if (p_extension == "png") {
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return "image/png";
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} else if (p_extension == "jpg") {
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return "image/jpg";
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} else if (p_extension == "xml") {
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return "application/xml";
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} else if (p_extension == "exe" || p_extension == "dll") {
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return "application/x-msdownload";
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} else {
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return "application/octet-stream";
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}
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}
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void AppxPackager::make_content_types(const String &p_path) {
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Ref<FileAccess> tmp_file = FileAccess::open(p_path, FileAccess::WRITE);
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tmp_file->store_string("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
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tmp_file->store_string("<Types xmlns=\"http://schemas.openxmlformats.org/package/2006/content-types\">");
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HashMap<String, String> types;
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for (int i = 0; i < file_metadata.size(); i++) {
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String ext = file_metadata[i].name.get_extension().to_lower();
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if (types.has(ext)) {
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continue;
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}
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types[ext] = content_type(ext);
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tmp_file->store_string("<Default Extension=\"" + ext + "\" ContentType=\"" + types[ext] + "\" />");
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}
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// Appx signature file
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tmp_file->store_string("<Default Extension=\"p7x\" ContentType=\"application/octet-stream\" />");
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// Override for package files
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tmp_file->store_string("<Override PartName=\"/AppxManifest.xml\" ContentType=\"application/vnd.ms-appx.manifest+xml\" />");
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tmp_file->store_string("<Override PartName=\"/AppxBlockMap.xml\" ContentType=\"application/vnd.ms-appx.blockmap+xml\" />");
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tmp_file->store_string("<Override PartName=\"/AppxSignature.p7x\" ContentType=\"application/vnd.ms-appx.signature\" />");
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tmp_file->store_string("<Override PartName=\"/AppxMetadata/CodeIntegrity.cat\" ContentType=\"application/vnd.ms-pkiseccat\" />");
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tmp_file->store_string("</Types>");
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}
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Vector<uint8_t> AppxPackager::make_file_header(FileMeta p_file_meta) {
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Vector<uint8_t> buf;
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buf.resize(BASE_FILE_HEADER_SIZE + p_file_meta.name.length());
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int offs = 0;
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// Write magic
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offs += buf_put_int32(FILE_HEADER_MAGIC, &buf.write[offs]);
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// Version
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offs += buf_put_int16(ZIP_VERSION, &buf.write[offs]);
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// Special flag
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offs += buf_put_int16(GENERAL_PURPOSE, &buf.write[offs]);
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// Compression
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offs += buf_put_int16(p_file_meta.compressed ? Z_DEFLATED : 0, &buf.write[offs]);
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// File date and time
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offs += buf_put_int32(0, &buf.write[offs]);
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// CRC-32
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offs += buf_put_int32(p_file_meta.file_crc32, &buf.write[offs]);
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// Compressed size
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offs += buf_put_int32(p_file_meta.compressed_size, &buf.write[offs]);
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// Uncompressed size
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offs += buf_put_int32(p_file_meta.uncompressed_size, &buf.write[offs]);
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// File name length
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offs += buf_put_int16(p_file_meta.name.length(), &buf.write[offs]);
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// Extra data length
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offs += buf_put_int16(0, &buf.write[offs]);
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// File name
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offs += buf_put_string(p_file_meta.name, &buf.write[offs]);
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// Done!
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return buf;
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}
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void AppxPackager::store_central_dir_header(const FileMeta &p_file, bool p_do_hash) {
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Vector<uint8_t> &buf = central_dir_data;
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int offs = buf.size();
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buf.resize(buf.size() + BASE_CENTRAL_DIR_SIZE + p_file.name.length());
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// Write magic
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offs += buf_put_int32(CENTRAL_DIR_MAGIC, &buf.write[offs]);
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// ZIP versions
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offs += buf_put_int16(ZIP_ARCHIVE_VERSION, &buf.write[offs]);
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offs += buf_put_int16(ZIP_VERSION, &buf.write[offs]);
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// General purpose flag
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offs += buf_put_int16(GENERAL_PURPOSE, &buf.write[offs]);
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// Compression
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offs += buf_put_int16(p_file.compressed ? Z_DEFLATED : 0, &buf.write[offs]);
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// Modification date/time
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offs += buf_put_int32(0, &buf.write[offs]);
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// Crc-32
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offs += buf_put_int32(p_file.file_crc32, &buf.write[offs]);
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// File sizes
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offs += buf_put_int32(p_file.compressed_size, &buf.write[offs]);
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offs += buf_put_int32(p_file.uncompressed_size, &buf.write[offs]);
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// File name length
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offs += buf_put_int16(p_file.name.length(), &buf.write[offs]);
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// Extra field length
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offs += buf_put_int16(0, &buf.write[offs]);
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// Comment length
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offs += buf_put_int16(0, &buf.write[offs]);
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// Disk number start, internal/external file attributes
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for (int i = 0; i < 8; i++) {
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buf.write[offs++] = 0;
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}
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// Relative offset
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offs += buf_put_int32(p_file.zip_offset, &buf.write[offs]);
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// File name
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offs += buf_put_string(p_file.name, &buf.write[offs]);
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// Done!
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}
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Vector<uint8_t> AppxPackager::make_end_of_central_record() {
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Vector<uint8_t> buf;
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buf.resize(ZIP64_END_OF_CENTRAL_DIR_SIZE + 12 + END_OF_CENTRAL_DIR_SIZE); // Size plus magic
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int offs = 0;
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// Write magic
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offs += buf_put_int32(ZIP64_END_OF_CENTRAL_DIR_MAGIC, &buf.write[offs]);
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// Size of this record
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offs += buf_put_int64(ZIP64_END_OF_CENTRAL_DIR_SIZE, &buf.write[offs]);
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// Version (yes, twice)
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offs += buf_put_int16(ZIP_ARCHIVE_VERSION, &buf.write[offs]);
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offs += buf_put_int16(ZIP_ARCHIVE_VERSION, &buf.write[offs]);
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// Disk number
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for (int i = 0; i < 8; i++) {
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buf.write[offs++] = 0;
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}
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// Number of entries (total and per disk)
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offs += buf_put_int64(file_metadata.size(), &buf.write[offs]);
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offs += buf_put_int64(file_metadata.size(), &buf.write[offs]);
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// Size of central dir
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offs += buf_put_int64(central_dir_data.size(), &buf.write[offs]);
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// Central dir offset
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offs += buf_put_int64(central_dir_offset, &buf.write[offs]);
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////// ZIP64 locator
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// Write magic for zip64 central dir locator
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offs += buf_put_int32(ZIP64_END_DIR_LOCATOR_MAGIC, &buf.write[offs]);
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// Disk number
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for (int i = 0; i < 4; i++) {
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buf.write[offs++] = 0;
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}
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// Relative offset
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offs += buf_put_int64(end_of_central_dir_offset, &buf.write[offs]);
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// Number of disks
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offs += buf_put_int32(1, &buf.write[offs]);
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/////// End of zip directory
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// Write magic for end central dir
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offs += buf_put_int32(END_OF_CENTRAL_DIR_MAGIC, &buf.write[offs]);
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// Dummy stuff for Zip64
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for (int i = 0; i < 4; i++) {
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buf.write[offs++] = 0x0;
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}
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for (int i = 0; i < 12; i++) {
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buf.write[offs++] = 0xFF;
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}
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// Size of comments
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for (int i = 0; i < 2; i++) {
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buf.write[offs++] = 0;
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}
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// Done!
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return buf;
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}
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void AppxPackager::init(Ref<FileAccess> p_fa) {
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package = p_fa;
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central_dir_offset = 0;
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end_of_central_dir_offset = 0;
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}
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Error AppxPackager::add_file(String p_file_name, const uint8_t *p_buffer, size_t p_len, int p_file_no, int p_total_files, bool p_compress) {
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if (p_file_no >= 1 && p_total_files >= 1) {
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if (EditorNode::progress_task_step(progress_task, "File: " + p_file_name, (p_file_no * 100) / p_total_files)) {
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return ERR_SKIP;
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}
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}
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FileMeta meta;
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meta.name = p_file_name;
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meta.uncompressed_size = p_len;
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meta.compressed = p_compress;
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meta.zip_offset = package->get_position();
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Vector<uint8_t> file_buffer;
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// Data for compression
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z_stream strm;
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Vector<uint8_t> strm_in;
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strm_in.resize(BLOCK_SIZE);
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Vector<uint8_t> strm_out;
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if (p_compress) {
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strm.zalloc = zipio_alloc;
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strm.zfree = zipio_free;
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strm.opaque = Z_NULL;
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strm_out.resize(BLOCK_SIZE + 8);
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deflateInit2(&strm, Z_DEFAULT_COMPRESSION, Z_DEFLATED, -15, 8, Z_DEFAULT_STRATEGY);
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}
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int step = 0;
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while (p_len - step > 0) {
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size_t block_size = (p_len - step) > BLOCK_SIZE ? (size_t)BLOCK_SIZE : (p_len - step);
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for (uint64_t i = 0; i < block_size; i++) {
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strm_in.write[i] = p_buffer[step + i];
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}
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BlockHash bh;
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bh.base64_hash = hash_block(strm_in.ptr(), block_size);
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if (p_compress) {
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strm.avail_in = block_size;
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strm.avail_out = strm_out.size();
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strm.next_in = (uint8_t *)strm_in.ptr();
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strm.next_out = strm_out.ptrw();
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int total_out_before = strm.total_out;
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int err = deflate(&strm, Z_FULL_FLUSH);
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ERR_FAIL_COND_V(err < 0, ERR_BUG); // Negative means bug
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bh.compressed_size = strm.total_out - total_out_before;
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//package->store_buffer(strm_out.ptr(), strm.total_out - total_out_before);
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int start = file_buffer.size();
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file_buffer.resize(file_buffer.size() + bh.compressed_size);
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for (uint64_t i = 0; i < bh.compressed_size; i++) {
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file_buffer.write[start + i] = strm_out[i];
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}
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} else {
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bh.compressed_size = block_size;
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//package->store_buffer(strm_in.ptr(), block_size);
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int start = file_buffer.size();
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file_buffer.resize(file_buffer.size() + block_size);
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for (uint64_t i = 0; i < bh.compressed_size; i++) {
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file_buffer.write[start + i] = strm_in[i];
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}
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}
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meta.hashes.push_back(bh);
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step += block_size;
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}
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if (p_compress) {
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strm.avail_in = 0;
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strm.avail_out = strm_out.size();
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strm.next_in = (uint8_t *)strm_in.ptr();
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strm.next_out = strm_out.ptrw();
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int total_out_before = strm.total_out;
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deflate(&strm, Z_FINISH);
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//package->store_buffer(strm_out.ptr(), strm.total_out - total_out_before);
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int start = file_buffer.size();
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file_buffer.resize(file_buffer.size() + (strm.total_out - total_out_before));
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for (uint64_t i = 0; i < (strm.total_out - total_out_before); i++) {
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file_buffer.write[start + i] = strm_out[i];
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}
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deflateEnd(&strm);
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meta.compressed_size = strm.total_out;
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} else {
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meta.compressed_size = p_len;
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}
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// Calculate file CRC-32
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uLong crc = crc32(0L, Z_NULL, 0);
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crc = crc32(crc, p_buffer, p_len);
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meta.file_crc32 = crc;
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// Create file header
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Vector<uint8_t> file_header = make_file_header(meta);
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meta.lfh_size = file_header.size();
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// Store the header and file;
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package->store_buffer(file_header.ptr(), file_header.size());
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package->store_buffer(file_buffer.ptr(), file_buffer.size());
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file_metadata.push_back(meta);
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return OK;
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}
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void AppxPackager::finish() {
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// Create and add block map file
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EditorNode::progress_task_step("export", "Creating block map...", 4);
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const String &tmp_blockmap_file_path = EditorPaths::get_singleton()->get_cache_dir().plus_file("tmpblockmap.xml");
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make_block_map(tmp_blockmap_file_path);
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{
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Ref<FileAccess> blockmap_file = FileAccess::open(tmp_blockmap_file_path, FileAccess::READ);
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Vector<uint8_t> blockmap_buffer;
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blockmap_buffer.resize(blockmap_file->get_length());
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blockmap_file->get_buffer(blockmap_buffer.ptrw(), blockmap_buffer.size());
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add_file("AppxBlockMap.xml", blockmap_buffer.ptr(), blockmap_buffer.size(), -1, -1, true);
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}
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// Add content types
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EditorNode::progress_task_step("export", "Setting content types...", 5);
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const String &tmp_content_types_file_path = EditorPaths::get_singleton()->get_cache_dir().plus_file("tmpcontenttypes.xml");
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make_content_types(tmp_content_types_file_path);
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{
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Ref<FileAccess> types_file = FileAccess::open(tmp_content_types_file_path, FileAccess::READ);
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Vector<uint8_t> types_buffer;
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types_buffer.resize(types_file->get_length());
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types_file->get_buffer(types_buffer.ptrw(), types_buffer.size());
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add_file("[Content_Types].xml", types_buffer.ptr(), types_buffer.size(), -1, -1, true);
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}
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// Cleanup generated files.
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DirAccess::remove_file_or_error(tmp_blockmap_file_path);
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DirAccess::remove_file_or_error(tmp_content_types_file_path);
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// Pre-process central directory before signing
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for (int i = 0; i < file_metadata.size(); i++) {
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store_central_dir_header(file_metadata[i]);
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}
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// Write central directory
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EditorNode::progress_task_step("export", "Finishing package...", 6);
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central_dir_offset = package->get_position();
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package->store_buffer(central_dir_data.ptr(), central_dir_data.size());
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// End record
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end_of_central_dir_offset = package->get_position();
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Vector<uint8_t> end_record = make_end_of_central_record();
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package->store_buffer(end_record.ptr(), end_record.size());
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package.unref();
|
|
}
|
|
|
|
AppxPackager::AppxPackager() {}
|
|
|
|
AppxPackager::~AppxPackager() {}
|