amirghadiri1987
125 lines
3.1 KiB
Plaintext
125 lines
3.1 KiB
Plaintext
/*
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LicenceFileCheck.mqh
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Copyright 2021, Orchard Forex
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https://www.orchardforex.com
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*/
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#property copyright "Copyright 2013-2020, Orchard Forex"
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#property link "https://www.orchardforex.com"
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#property version "1.00"
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class CLicenceFile {
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protected:
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string mProductName;
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string mProductKey;
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string mData;
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virtual bool LoadData( string &data );
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virtual string LicencePath();
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public:
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CLicenceFile( string productName, string productKey );
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~CLicenceFile() {}
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bool Check();
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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 chekload2(string &dat1) {LoadData(dat1);}
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string GetData() { return ( mData ); }
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};
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CLicenceFile::CLicenceFile( string productName, string productKey ) {
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mProductName = productName;
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mProductKey = productKey;
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}
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string CLicenceFile::LicencePath() { return ( "Orchard\\Licence\\" + mProductName + ".lic" ); }
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bool CLicenceFile::Check() {
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mData = "";
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string data = "";
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if ( !LoadData( data ) ) return false;
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int pos = StringFind( data, "\n" );
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if ( pos <= 0 ) {
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Print( "Licence file is not valid" );
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return ( false );
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}
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string signature = StringSubstr( data, 0, pos );
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mData = StringSubstr( data, pos + 1 );
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Print("mdata ",mData," sign ",signature);
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string key = KeyGen( mData );
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if ( key != signature ) {
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Print( "Licence is invalid" );
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return ( false );
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}
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return ( true );
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}
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bool CLicenceFile::LoadData( string &data ) {
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Print("load 02");
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string licencePath = LicencePath();
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// Open and read the file each time in case it has been modified between iterations
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int handle = FileOpen( licencePath, FILE_READ | FILE_BIN | FILE_ANSI );
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if ( handle == INVALID_HANDLE ) {
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PrintFormat( "Could not open licence file %s", licencePath );
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return ( false );
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}
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int len = ( int )FileSize( handle );
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data = FileReadString( handle, len );
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FileClose( handle );
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Print("load 02 2");
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return true;
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}
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string CLicenceFile::KeyGen( string data ) {
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string keyString = data + mProductKey;
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return Hash( keyString );
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}
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string CLicenceFile::Hash( string data ) {
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uchar dataChar[];
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StringToCharArray( data, dataChar, 0, StringLen( data ) );
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uchar cryptChar[];
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CryptEncode( CRYPT_HASH_SHA256, dataChar, dataChar, cryptChar );
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string result = "";
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int count = ArraySize( cryptChar );
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for ( int i = 0; i < count; i++ ) {
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result += StringFormat( "%.2x", cryptChar[i] );
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}
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return result;
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}
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bool CLicenceFile::FileGen( string data ) {
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string licencePath = LicencePath();
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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 signature = KeyGen( data );
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string contents = signature + "\n" + data;
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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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