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#pragma once
#include "../../include/AsyncTask.hpp"
#include <string>
#include <vector>
#include <map>
#include <mutex>
#include <time.h>
namespace QuickMedia {
// Thread safe
class YoutubeSignatureDecryptor {
public:
static YoutubeSignatureDecryptor& get_instance();
bool decrypt(const std::string &s, const std::string &sp, std::string &sig_key, std::string &sig_value);
private:
YoutubeSignatureDecryptor();
~YoutubeSignatureDecryptor();
YoutubeSignatureDecryptor(const YoutubeSignatureDecryptor&) = delete;
YoutubeSignatureDecryptor& operator=(const YoutubeSignatureDecryptor&) = delete;
struct DecryptFuncCall {
std::string func_name;
long arg;
};
enum class DecryptFunction {
REVERSE,
SPLICE,
SWAP
};
bool js_code_to_operations(const std::string &function_body_str, const std::string &var_body_str, std::vector<DecryptFuncCall> &new_func_calls, std::map<std::string, DecryptFunction> &new_func_decls);
int update_decrypt_function();
private:
AsyncTask<void> poll_task;
std::mutex update_signature_mutex;
std::string decryption_function;
time_t decrypt_function_last_updated = 0;
bool running = false;
bool up_to_date = false;
std::vector<DecryptFuncCall> func_calls;
std::map<std::string, DecryptFunction> func_decls;
};
}
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