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5db6507b17ab2a1c90d7b414e19bd6b57b4e2b27
psopeeps-newserv/src/Quest.cc
T
Martin Michelsen 5db6507b17 fix some dumb bugs in quest menu filters
2022-05-10 01:08:18 -07:00

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#include "Quest.hh"
#include <algorithm>
#include <string>
#include <unordered_map>
#include <phosg/Filesystem.hh>
#include <phosg/Encoding.hh>
#include <phosg/Random.hh>
#include <phosg/Strings.hh>
#include "CommandFormats.hh"
#include "Compression.hh"
#include "PSOEncryption.hh"
#include "Text.hh"
using namespace std;
struct PSODownloadQuestHeader {
// When sending a DLQ to the client, this is the DECOMPRESSED size. When
// reading it from a GCI file, this is the COMPRESSED size.
le_uint32_t size;
// Note: use PSO PC encryption, even for GC quests.
le_uint32_t encryption_seed;
} __attribute__((packed));
bool category_is_mode(QuestCategory category) {
return (category == QuestCategory::BATTLE) ||
(category == QuestCategory::CHALLENGE) ||
(category == QuestCategory::EPISODE_3);
}
const char* name_for_category(QuestCategory category) {
switch (category) {
case QuestCategory::RETRIEVAL:
return "Retrieval";
case QuestCategory::EXTERMINATION:
return "Extermination";
case QuestCategory::EVENT:
return "Event";
case QuestCategory::SHOP:
return "Shop";
case QuestCategory::VR:
return "VR";
case QuestCategory::TOWER:
return "Tower";
case QuestCategory::GOVERNMENT_EPISODE_1:
return "GovernmentEpisode1";
case QuestCategory::GOVERNMENT_EPISODE_2:
return "GovernmentEpisode2";
case QuestCategory::GOVERNMENT_EPISODE_4:
return "GovernmentEpisode4";
case QuestCategory::DOWNLOAD:
return "Download";
case QuestCategory::BATTLE:
return "Battle";
case QuestCategory::CHALLENGE:
return "Challenge";
case QuestCategory::SOLO:
return "Solo";
case QuestCategory::EPISODE_3:
return "Episode3";
default:
return "Unknown";
}
}
struct PSOQuestHeaderDC { // same for dc v1 and v2, thankfully
uint32_t start_offset;
uint32_t unknown_offset1;
uint32_t size;
uint32_t unused;
uint8_t is_download;
uint8_t unknown1;
uint16_t quest_number; // 0xFFFF for challenge quests
ptext<char, 0x20> name;
ptext<char, 0x80> short_description;
ptext<char, 0x120> long_description;
} __attribute__((packed));
struct PSOQuestHeaderPC {
uint32_t start_offset;
uint32_t unknown_offset1;
uint32_t size;
uint32_t unused;
uint8_t is_download;
uint8_t unknown1;
uint16_t quest_number; // 0xFFFF for challenge quests
ptext<char16_t, 0x20> name;
ptext<char16_t, 0x80> short_description;
ptext<char16_t, 0x120> long_description;
} __attribute__((packed));
struct PSOQuestHeaderGC {
uint32_t start_offset;
uint32_t unknown_offset1;
uint32_t size;
uint32_t unused;
uint8_t is_download;
uint8_t unknown1;
uint8_t quest_number;
uint8_t episode; // 1 = ep2. apparently some quests have 0xFF here, which means ep1 (?)
ptext<char, 0x20> name;
ptext<char, 0x80> short_description;
ptext<char, 0x120> long_description;
} __attribute__((packed));
struct PSOQuestHeaderGCEpisode3 {
// there's actually a lot of other important stuff in here but I'm lazy. it
// looks like map data, cutscene data, and maybe special cards used during
// the quest
parray<uint8_t, 0x1DF0> unknown_a1;
ptext<char, 0x14> name;
ptext<char, 0x14> location;
ptext<char, 0x3C> location2;
ptext<char, 0x190> description;
parray<uint8_t, 0x3A34> unknown_a2;
} __attribute__((packed));
struct PSOQuestHeaderBB {
uint32_t start_offset;
uint32_t unknown_offset1;
uint32_t size;
uint32_t unused;
uint16_t quest_number; // 0xFFFF for challenge quests
uint16_t unused2;
uint8_t episode; // 0 = ep1, 1 = ep2, 2 = ep4
uint8_t max_players;
uint8_t joinable_in_progress;
uint8_t unknown;
ptext<char16_t, 0x20> name;
ptext<char16_t, 0x80> short_description;
ptext<char16_t, 0x120> long_description;
} __attribute__((packed));
Quest::Quest(const string& bin_filename)
: internal_id(-1),
menu_item_id(0),
category(QuestCategory::UNKNOWN),
episode(0),
is_dcv1(false),
joinable(false),
file_format(FileFormat::BIN_DAT) {
if (ends_with(bin_filename, ".bin.gci")) {
this->file_format = FileFormat::BIN_DAT_GCI;
this->file_basename = bin_filename.substr(0, bin_filename.size() - 8);
} else if (ends_with(bin_filename, ".bin.dlq")) {
this->file_format = FileFormat::BIN_DAT_DLQ;
this->file_basename = bin_filename.substr(0, bin_filename.size() - 8);
} else if (ends_with(bin_filename, ".qst")) {
this->file_format = FileFormat::QST;
this->file_basename = bin_filename.substr(0, bin_filename.size() - 4);
} else if (ends_with(bin_filename, ".bin")) {
this->file_basename = bin_filename.substr(0, bin_filename.size() - 4);
} else {
throw runtime_error("quest does not have a valid .bin file");
}
string basename;
{
size_t slash_pos = bin_filename.rfind('/');
if (slash_pos != string::npos) {
basename = bin_filename.substr(slash_pos + 1);
} else {
basename = bin_filename;
}
}
bool has_short_extension = (this->file_format == FileFormat::BIN_DAT) ||
(this->file_format == FileFormat::QST);
basename.resize(basename.size() - (has_short_extension ? 4 : 8));
// quest filenames are like:
// b###-VV.bin for battle mode
// c###-VV.bin for challenge mode
// e###-gc3.bin for episode 3
// q###-CAT-VV.bin for normal quests
if (basename.empty()) {
throw invalid_argument("empty filename");
}
if (basename[0] == 'b') {
this->category = QuestCategory::BATTLE;
} else if (basename[0] == 'c') {
this->category = QuestCategory::CHALLENGE;
} else if (basename[0] == 'e') {
this->category = QuestCategory::EPISODE_3;
} else if (basename[0] != 'q') {
throw invalid_argument("filename does not indicate mode");
}
// if the quest category is still unknown, expect 3 tokens (one of them will
// tell us the category)
vector<string> tokens = split(basename, '-');
if (tokens.size() != (2 + (this->category == QuestCategory::UNKNOWN))) {
throw invalid_argument("incorrect filename format");
}
// parse the number out of the first token
this->internal_id = strtoull(tokens[0].c_str() + 1, nullptr, 10);
// get the category from the second token if needed
if (this->category == QuestCategory::UNKNOWN) {
static const unordered_map<std::string, QuestCategory> name_to_category({
{"ret", QuestCategory::RETRIEVAL},
{"ext", QuestCategory::EXTERMINATION},
{"evt", QuestCategory::EVENT},
{"shp", QuestCategory::SHOP},
{"vr", QuestCategory::VR},
{"twr", QuestCategory::TOWER},
// Note: This will be overwritten later for Episode 2 & 4 quests - we
// haven't parsed the episode from the quest script yet
{"gov", QuestCategory::GOVERNMENT_EPISODE_1},
{"dl", QuestCategory::DOWNLOAD},
{"1p", QuestCategory::SOLO},
});
this->category = name_to_category.at(tokens[1]);
tokens.erase(tokens.begin() + 1);
}
static const unordered_map<std::string, GameVersion> name_to_version({
{"d1", GameVersion::DC},
{"dc", GameVersion::DC},
{"pc", GameVersion::PC},
{"gc", GameVersion::GC},
{"gc3", GameVersion::GC},
{"bb", GameVersion::BB},
});
this->version = name_to_version.at(tokens[1]);
// the rest of the information needs to be fetched from the .bin file's
// contents
auto bin_compressed = this->bin_contents();
auto bin_decompressed = prs_decompress(*bin_compressed);
switch (this->version) {
case GameVersion::PATCH:
throw invalid_argument("patch server quests are not valid");
break;
case GameVersion::DC: {
if (bin_decompressed.size() < sizeof(PSOQuestHeaderDC)) {
throw invalid_argument("file is too small for header");
}
auto* header = reinterpret_cast<const PSOQuestHeaderDC*>(bin_decompressed.data());
this->joinable = false;
this->episode = 0;
this->name = decode_sjis(header->name);
this->short_description = decode_sjis(header->short_description);
this->long_description = decode_sjis(header->long_description);
this->is_dcv1 = (tokens[1] == "d1");
break;
}
case GameVersion::PC: {
if (bin_decompressed.size() < sizeof(PSOQuestHeaderPC)) {
throw invalid_argument("file is too small for header");
}
auto* header = reinterpret_cast<const PSOQuestHeaderPC*>(bin_decompressed.data());
this->joinable = false;
this->episode = 0;
this->name = header->name;
this->short_description = header->short_description;
this->long_description = header->long_description;
break;
}
case GameVersion::GC: {
if (this->category == QuestCategory::EPISODE_3) {
// these all appear to be the same size
if (bin_decompressed.size() != sizeof(PSOQuestHeaderGCEpisode3)) {
throw invalid_argument("file is incorrect size");
}
auto* header = reinterpret_cast<const PSOQuestHeaderGCEpisode3*>(bin_decompressed.data());
this->joinable = false;
this->episode = 0xFF;
this->name = decode_sjis(header->name);
this->short_description = decode_sjis(header->location2);
this->long_description = decode_sjis(header->description);
} else {
if (bin_decompressed.size() < sizeof(PSOQuestHeaderGC)) {
throw invalid_argument("file is too small for header");
}
auto* header = reinterpret_cast<const PSOQuestHeaderGC*>(bin_decompressed.data());
this->joinable = false;
this->episode = (header->episode == 1);
this->name = decode_sjis(header->name);
this->short_description = decode_sjis(header->short_description);
this->long_description = decode_sjis(header->long_description);
}
break;
}
case GameVersion::BB: {
if (bin_decompressed.size() < sizeof(PSOQuestHeaderBB)) {
throw invalid_argument("file is too small for header");
}
auto* header = reinterpret_cast<const PSOQuestHeaderBB*>(bin_decompressed.data());
this->joinable = header->joinable_in_progress;
this->episode = header->episode;
this->name = header->name;
this->short_description = header->short_description;
this->long_description = header->long_description;
if (this->category == QuestCategory::GOVERNMENT_EPISODE_1) {
if (this->episode == 1) {
this->category = QuestCategory::GOVERNMENT_EPISODE_2;
} else if (this->episode == 2) {
this->category = QuestCategory::GOVERNMENT_EPISODE_4;
} else if (this->episode != 0) {
throw invalid_argument("government quest has invalid episode number");
}
}
break;
}
default:
throw logic_error("invalid quest game version");
}
}
static string basename_for_filename(const std::string& filename) {
size_t slash_pos = filename.rfind('/');
if (slash_pos != string::npos) {
return filename.substr(slash_pos + 1);
}
return filename;
}
std::string Quest::bin_filename() const {
return basename_for_filename(this->file_basename + ".bin");
}
std::string Quest::dat_filename() const {
return basename_for_filename(this->file_basename + ".dat");
}
shared_ptr<const string> Quest::bin_contents() const {
if (!this->bin_contents_ptr) {
switch (this->file_format) {
case FileFormat::BIN_DAT:
this->bin_contents_ptr.reset(new string(load_file(this->file_basename + ".bin")));
break;
case FileFormat::BIN_DAT_GCI:
this->bin_contents_ptr.reset(new string(this->decode_gci(this->file_basename + ".bin.gci")));
break;
case FileFormat::BIN_DAT_DLQ:
this->bin_contents_ptr.reset(new string(this->decode_dlq(this->file_basename + ".bin.dlq")));
break;
case FileFormat::QST: {
auto result = this->decode_qst(this->file_basename + ".qst");
this->bin_contents_ptr.reset(new string(move(result.first)));
this->dat_contents_ptr.reset(new string(move(result.second)));
break;
}
default:
throw logic_error("invalid quest file format");
}
}
return this->bin_contents_ptr;
}
shared_ptr<const string> Quest::dat_contents() const {
if (!this->dat_contents_ptr) {
switch (this->file_format) {
case FileFormat::BIN_DAT:
this->dat_contents_ptr.reset(new string(load_file(this->file_basename + ".dat")));
break;
case FileFormat::BIN_DAT_GCI:
this->dat_contents_ptr.reset(new string(this->decode_gci(this->file_basename + ".dat.gci")));
break;
case FileFormat::BIN_DAT_DLQ:
this->dat_contents_ptr.reset(new string(this->decode_dlq(this->file_basename + ".dat.dlq")));
break;
case FileFormat::QST: {
auto result = this->decode_qst(this->file_basename + ".qst");
this->bin_contents_ptr.reset(new string(move(result.first)));
this->dat_contents_ptr.reset(new string(move(result.second)));
break;
}
default:
throw logic_error("invalid quest file format");
}
}
return this->dat_contents_ptr;
}
string Quest::decode_gci(const string& filename) {
string data = load_file(filename);
if (data.size() < 0x2080 + sizeof(PSODownloadQuestHeader)) {
throw runtime_error(string_printf(
"GCI file is truncated before download quest header (have 0x%zX bytes)", data.size()));
}
PSODownloadQuestHeader* h = reinterpret_cast<PSODownloadQuestHeader*>(
data.data() + 0x2080);
string compressed_data_with_header = data.substr(0x2088, h->size);
// For now, we can only load unencrypted quests, unfortunately
// TODO: Figure out how GCI encryption works and implement it here.
// Unlike the DLQ header, this one is stored little-endian. The compressed
// data immediately follows this header.
struct DecryptedHeader {
uint32_t unknown1;
uint32_t unknown2;
uint32_t decompressed_size;
uint32_t unknown4;
} __attribute__((packed));
if (compressed_data_with_header.size() < sizeof(DecryptedHeader)) {
throw runtime_error("GCI file compressed data truncated during header");
}
DecryptedHeader* dh = reinterpret_cast<DecryptedHeader*>(
compressed_data_with_header.data());
if (dh->unknown1 || dh->unknown2 || dh->unknown4) {
throw runtime_error("GCI file appears to be encrypted");
}
string data_to_decompress = compressed_data_with_header.substr(sizeof(DecryptedHeader));
size_t decompressed_bytes = prs_decompress_size(data_to_decompress);
size_t expected_decompressed_bytes = dh->decompressed_size - 8;
if (decompressed_bytes < expected_decompressed_bytes) {
throw runtime_error(string_printf(
"GCI decompressed data is smaller than expected size (have 0x%zX bytes, expected 0x%zX bytes)",
decompressed_bytes, expected_decompressed_bytes));
}
// The caller expects to get PRS-compressed data when calling bin_contents()
// and dat_contents(), so we shouldn't decompress it here.
return data_to_decompress;
}
string Quest::decode_dlq(const string& filename) {
uint32_t decompressed_size;
uint32_t key;
string data;
{
auto f = fopen_unique(filename, "rb");
decompressed_size = freadx<le_uint32_t>(f.get());
key = freadx<le_uint32_t>(f.get());
data = read_all(f.get());
}
PSOPCEncryption encr(key);
// The compressed data size does not need to be a multiple of 4, but the PC
// encryption (which is used for all download quests, even in V3) requires the
// data size to be a multiple of 4. We'll just temporarily stick a few bytes
// on the end, then throw them away later if needed.
size_t original_size = data.size();
data.resize((data.size() + 3) & (~3));
encr.decrypt(data);
data.resize(original_size);
if (prs_decompress_size(data) != decompressed_size) {
throw runtime_error("decompressed size does not match size in header");
}
return data;
}
template <typename HeaderT, typename OpenFileT>
static pair<string, string> decode_qst_t(FILE* f) {
string qst_data = read_all(f);
StringReader r(qst_data);
string bin_contents;
string dat_contents;
string internal_bin_filename;
string internal_dat_filename;
uint32_t bin_file_size = 0;
uint32_t dat_file_size = 0;
while (!r.eof()) {
// Handle BB's implicit 8-byte command alignment
static constexpr size_t alignment = sizeof(HeaderT);
size_t next_command_offset = (r.where() + (alignment - 1)) & ~(alignment - 1);
r.go(next_command_offset);
if (r.eof()) {
break;
}
const auto& header = r.get<HeaderT>();
if (header.command == 0x44) {
if (header.size != sizeof(HeaderT) + sizeof(OpenFileT)) {
throw runtime_error("qst open file command has incorrect size");
}
const auto& cmd = r.get<OpenFileT>(f);
string internal_filename = cmd.filename;
if (ends_with(internal_filename, ".bin")) {
if (internal_bin_filename.empty()) {
internal_bin_filename = internal_filename;
} else {
throw runtime_error("qst contains multiple bin files");
}
bin_file_size = cmd.file_size;
} else if (ends_with(internal_filename, ".dat")) {
if (internal_dat_filename.empty()) {
internal_dat_filename = internal_filename;
} else {
throw runtime_error("qst contains multiple dat files");
}
dat_file_size = cmd.file_size;
} else {
throw runtime_error("qst contains non-bin, non-dat file");
}
} else if (header.command == 0x13) {
if (header.size != sizeof(HeaderT) + sizeof(S_WriteFile_13_A7)) {
throw runtime_error("qst write file command has incorrect size");
}
const auto& cmd = r.get<S_WriteFile_13_A7>();
string filename = cmd.filename;
string* dest = nullptr;
if (filename == internal_bin_filename) {
dest = &bin_contents;
} else if (filename == internal_dat_filename) {
dest = &dat_contents;
} else {
throw runtime_error("qst contains write commnd for non-open file");
}
if (cmd.data_size > 0x400) {
throw runtime_error("qst contains invalid write command");
}
if (dest->size() & 0x3FF) {
throw runtime_error("qst contains uneven chunks out of order");
}
if (header.flag != dest->size() / 0x400) {
throw runtime_error("qst contains chunks out of order");
}
dest->append(reinterpret_cast<const char*>(cmd.data), cmd.data_size);
} else {
throw runtime_error("invalid command in qst file");
}
}
if (bin_contents.size() != bin_file_size) {
throw runtime_error("bin file does not match expected size");
}
if (dat_contents.size() != dat_file_size) {
throw runtime_error("dat file does not match expected size");
}
return make_pair(bin_contents, dat_contents);
}
pair<string, string> Quest::decode_qst(const string& filename) {
auto f = fopen_unique(filename, "rb");
// qst files start with an open file command, but the format differs depending
// on the PSO version that the qst file is for. We can detect the format from
// the first 4 bytes in the file:
// - BB: 58 00 44 00
// - PC: 3C ?? 44 00
// - DC/GC: 44 ?? 3C 00
uint32_t signature = freadx<be_uint32_t>(f.get());
fseek(f.get(), 0, SEEK_SET);
if (signature == 0x58004400) {
return decode_qst_t<PSOCommandHeaderBB, S_OpenFile_BB_44_A6>(f.get());
} else if ((signature & 0xFF00FFFF) == 0x3C004400) {
return decode_qst_t<PSOCommandHeaderPC, S_OpenFile_PC_GC_44_A6>(f.get());
} else if ((signature & 0xFF00FFFF) == 0x44003C00) {
return decode_qst_t<PSOCommandHeaderDCGC, S_OpenFile_PC_GC_44_A6>(f.get());
} else {
throw runtime_error("invalid qst file format");
}
}
QuestIndex::QuestIndex(const std::string& directory) : directory(directory) {
auto filename_set = list_directory(this->directory);
vector<string> filenames(filename_set.begin(), filename_set.end());
sort(filenames.begin(), filenames.end());
uint32_t next_menu_item_id = 1;
for (const auto& filename : filenames) {
string full_path = this->directory + "/" + filename;
if (ends_with(filename, ".gba")) {
shared_ptr<string> contents(new string(load_file(full_path)));
this->gba_file_contents.emplace(make_pair(filename, contents));
continue;
}
if (ends_with(filename, ".bin") ||
ends_with(filename, ".bin.gci") ||
ends_with(filename, ".bin.dlq") ||
ends_with(filename, ".qst")) {
try {
shared_ptr<Quest> q(new Quest(full_path));
q->menu_item_id = next_menu_item_id++;
string ascii_name = encode_sjis(q->name);
if (!this->version_menu_item_id_to_quest.emplace(
make_pair(q->version, q->menu_item_id), q).second) {
throw logic_error("duplicate quest menu item id");
}
if (!this->version_name_to_quest.emplace(
make_pair(q->version, q->name), q).second) {
throw runtime_error(string_printf(
"duplicate quest name (%s-%" PRId64 "): %s",
name_for_version(q->version), q->internal_id, ascii_name.c_str()));
}
log(INFO, "Indexed quest %s (%s-%" PRId64 " => %" PRIu32 ", %s, episode=%hhu, joinable=%s, dcv1=%s)",
ascii_name.c_str(), name_for_version(q->version), q->internal_id,
q->menu_item_id, name_for_category(q->category), q->episode,
q->joinable ? "true" : "false", q->is_dcv1 ? "true" : "false");
} catch (const exception& e) {
log(WARNING, "Failed to parse quest file %s (%s)", filename.c_str(), e.what());
}
}
}
}
shared_ptr<const Quest> QuestIndex::get(GameVersion version,
uint32_t menu_item_id) const {
return this->version_menu_item_id_to_quest.at(make_pair(version, menu_item_id));
}
shared_ptr<const string> QuestIndex::get_gba(const string& name) const {
return this->gba_file_contents.at(name);
}
vector<shared_ptr<const Quest>> QuestIndex::filter(GameVersion version,
bool is_dcv1, QuestCategory category) const {
auto it = this->version_menu_item_id_to_quest.lower_bound(make_pair(version, 0));
auto end_it = this->version_menu_item_id_to_quest.upper_bound(make_pair(version, 0xFFFFFFFF));
vector<shared_ptr<const Quest>> ret;
for (; it != end_it; it++) {
shared_ptr<const Quest> q = it->second;
if ((q->is_dcv1 != is_dcv1) || (q->category != category)) {
continue;
}
ret.emplace_back(q);
}
return ret;
}
static string create_download_quest_file(const string& compressed_data,
size_t decompressed_size, uint32_t encryption_seed = 0) {
// Download quest files are like normal (PRS-compressed) quest files, but they
// are encrypted with the PSOPC encryption (even on V3 / PSO GC), and a small
// header (PSODownloadQuestHeader) is prepended to the encrypted data.
if (encryption_seed == 0) {
encryption_seed = random_object<uint32_t>();
}
string data(8, '\0');
auto* header = reinterpret_cast<PSODownloadQuestHeader*>(data.data());
header->size = decompressed_size;
header->encryption_seed = encryption_seed;
data += compressed_data;
// Add temporary extra bytes if necessary so encryption won't fail - the data
// size must be a multiple of 4 for PSO PC encryption.
size_t original_size = data.size();
data.resize((data.size() + 3) & (~3));
PSOPCEncryption encr(encryption_seed);
encr.encrypt(data.data() + sizeof(PSODownloadQuestHeader),
data.size() - sizeof(PSODownloadQuestHeader));
data.resize(original_size);
return data;
}
shared_ptr<Quest> Quest::create_download_quest() const {
// The download flag needs to be set in the bin header, or else the client
// will ignore it when scanning for download quests in an offline game. To set
// this flag, we need to decompress the quest's .bin file, set the flag, then
// recompress it again.
string decompressed_bin = prs_decompress(*this->bin_contents());
void* data_ptr = decompressed_bin.data();
switch (this->version) {
case GameVersion::DC:
if (decompressed_bin.size() < sizeof(PSOQuestHeaderDC)) {
throw runtime_error("bin file is too small for header");
}
reinterpret_cast<PSOQuestHeaderDC*>(data_ptr)->is_download = 0x01;
break;
case GameVersion::PC:
if (decompressed_bin.size() < sizeof(PSOQuestHeaderPC)) {
throw runtime_error("bin file is too small for header");
}
reinterpret_cast<PSOQuestHeaderPC*>(data_ptr)->is_download = 0x01;
break;
case GameVersion::GC:
if (decompressed_bin.size() < sizeof(PSOQuestHeaderGC)) {
throw runtime_error("bin file is too small for header");
}
reinterpret_cast<PSOQuestHeaderGC*>(data_ptr)->is_download = 0x01;
break;
case GameVersion::BB:
throw invalid_argument("PSOBB does not support download quests");
default:
throw invalid_argument("unknown game version");
}
string compressed_bin = prs_compress(decompressed_bin);
// We'll create a new Quest object with appropriately-processed .bin and .dat
// file contents.
shared_ptr<Quest> dlq(new Quest(*this));
dlq->bin_contents_ptr.reset(new string(create_download_quest_file(
compressed_bin, decompressed_bin.size())));
dlq->dat_contents_ptr.reset(new string(create_download_quest_file(
*this->dat_contents(), prs_decompress_size(*this->dat_contents()))));
return dlq;
}
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