amirghadiri1987
112 lines
3.6 KiB
Plaintext
112 lines
3.6 KiB
Plaintext
//+------------------------------------------------------------------+
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//| CreateLicense.mqh |
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//| Copyright 2023, MetaQuotes Ltd. |
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//| https://www.mql5.com |
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//+------------------------------------------------------------------+
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#property copyright "Copyright 2023, MetaQuotes Ltd."
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#property link "https://www.mql5.com"
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class CreateLicense
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{
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private:
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string mProductName;
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string mProductKey;
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string mExpiry;
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string mUserID;
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string mAccount;
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public:
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CreateLicense(void);
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~CreateLicense(void);
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void initalization(string productName, string productKey, datetime expiry, long userid, long account);
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string KeyGen( string data ); // Allow account to pass in
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string Hash( string data );
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bool FileGen( string data );
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void CreateTestLicenseFile();
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};
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CreateLicense::CreateLicense(void)
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{
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}
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CreateLicense::~CreateLicense(void)
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{
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}
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void CreateLicense::initalization(string productName, string productKey, datetime expiry, long userid, long account)
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{
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mProductName = productName;
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mProductKey = productKey;
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mExpiry = TimeToString(expiry,TIME_DATE);
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mUserID = IntegerToString(userid);
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mAccount = IntegerToString(account);
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}
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string CreateLicense::Hash( string data ) {
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uchar dataCharArray[];
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StringToCharArray(data, dataCharArray);
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uchar combinedCharArray[];
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int combinedSize = ArraySize(dataCharArray);
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ArrayResize(combinedCharArray, combinedSize);
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ArrayCopy(combinedCharArray, dataCharArray, 0, 0, ArraySize(dataCharArray));
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// Generate SHA-256 hash
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uchar hashResult[];
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if (!CryptEncode(CRYPT_HASH_SHA256, combinedCharArray, combinedCharArray, hashResult)) {
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Print("Error generating SHA-256 hash.");
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return "";
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}
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// Base64 encode the hash result
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uchar base64Result[];
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if (!CryptEncode(CRYPT_BASE64, hashResult, hashResult, base64Result)) {
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Print("Error encoding to Base64.");
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return "";
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}
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// Convert Base64 result to string for the final passcode
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string result = CharArrayToString(base64Result);
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return result;
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}
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bool CreateLicense::FileGen( string data ) {
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string licencePath = Hash( mProductName + "_" + mAccount ) + ".lic";
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int handle = FileOpen( licencePath, FILE_WRITE | FILE_BIN | FILE_ANSI );
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if ( handle == INVALID_HANDLE ) {
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PrintFormat( "Could not create licence file %s", licencePath );
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return ( false );
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}
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string data_hash = Hash(mAccount + "_" + mExpiry + "_" + mUserID + "_" + mProductName + "_" + mProductKey);
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string signature = KeyGen(data_hash);
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string contents = signature + data_hash + "\n" + mExpiry;
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FileWriteString( handle, contents );
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FileFlush( handle );
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FileClose( handle );
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Print( "Licence file '" + licencePath + "' created" );
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return ( true );
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}
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string CreateLicense::KeyGen( string data ) {
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string keyString = data + mProductName;
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return Hash( keyString );
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}
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void CreateLicense::CreateTestLicenseFile() {
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string data = Hash(mAccount + "_" + mExpiry + "_" + mUserID + "_" + mProductName + "_" + mProductKey);
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// Create the file to ship to the customer
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if ( !FileGen( data ) ) {
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Print( "Failed to create licence file" );
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return;
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}
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Print( "Created licence file" );
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}
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