checkVersion.cpp
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#include <time.h>
#include <fstream>
#include <string>
#include <cstdlib>
#include <IOSTREAM>
#include <windows.h>
#include <thread>
using namespace std;
HINSTANCE hDLL1;
char* pPathTempJson;
char* pPathVlibrasJson;
int codDownload = -1;
//Assinatura do método itd_downloadfile utilizado na dll
typedef int (WINAPI*download)(char * arg1, char * arg2);
download itd_downloadfile;
ofstream versionFileCheck;
//usado para representar as versoes tanto da api quanto local
typedef struct Versions
{
char versionDicionario[7]={'0','0','0','0','0','0','\0'};
char versionPlayer[4]={'0','0','0','\0'};
} Version;
// usado para carregar os jsons de versoes
Version loadVersion(char* pPathTempJson)
{
Version version;
string line_in_str;
ifstream file_versionApi;
int i;
try
{
file_versionApi.open(pPathTempJson);
while ( getline (file_versionApi, line_in_str) )
{
if(strstr(line_in_str.c_str(), "playerVersion")){
i = 0;
for (char & c : line_in_str)
if(isdigit(c))
version.versionPlayer[i++]=c;
version.versionPlayer[i]='\0';
}
else if(strstr(line_in_str.c_str(), "dictionaryVersion")){
i = 0;
for (char & c : line_in_str)
if(isdigit(c))
version.versionDicionario[i++]=c;
version.versionDicionario[i]='\0';
}
}
file_versionApi.close();
}
catch (exception e)
{
}
return version;
}
void downloadFileJson(){
codDownload = itd_downloadfile("http://vlibras.lavid.ufpb.br/api/dicionario/0.0.0_0.0.0?type=json",pPathTempJson);
}
int main(){
versionFileCheck.open ("c:\\VLibras\\update\\version\\version.txt");
pPathTempJson ="C:\\VLibras\\update\\download\\VLibrasVersionApi.json";
pPathVlibrasJson = "c:\\VLibras\\version.json";
//Carrega a dll
hDLL1 = LoadLibrary("c:\\VLibras\\update\\plugins\\itdownload.dll");
//Relaciona método local com o método implementado na dll
itd_downloadfile=(download)GetProcAddress((HMODULE)hDLL1, "itd_downloadfile");
if (hDLL1){
//faz download do json de versao
thread tDownloadFileJson(downloadFileJson);
clock_t time_end;
time_end = clock() + 3000 * CLOCKS_PER_SEC/1000;
while (clock() < time_end);
if(codDownload == -1){
versionFileCheck << "-1";
goto erro;
}
tDownloadFileJson.join();
//verifica se existe os dois arquivos de versao
if(!ifstream(pPathTempJson) || !ifstream(pPathVlibrasJson) || (codDownload > 0 )){
versionFileCheck << "-1";
goto erro;
}
Version versionApi = loadVersion(pPathTempJson);
Version versionLocal = loadVersion(pPathVlibrasJson);
// compara as versoes (return '0' para nao tem attualizacao, '1' para player e '2' para dicionario)
if(atoi(versionApi.versionPlayer)> atoi(versionLocal.versionPlayer))
versionFileCheck << "1";
else if(atoi(versionApi.versionDicionario)> atoi(versionLocal.versionDicionario))
versionFileCheck << "2";
else
versionFileCheck << "0";
}
else
versionFileCheck << "-1";
erro:
versionFileCheck.close();
//Libera dll
FreeLibrary((HMODULE)hDLL1);
return 1;
}