Commit of latest release

Source for release 2.4.1

.gitignore

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+r3.exe
+r3
+resource.syso

LICENSE

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+Copyright (c) 2019-2021 Gabriel Victor Herbert
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

README.md

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+# r3
+REI3 business application platform

activation/activation.go

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+package activation
+
+import (
+	"crypto"
+	"crypto/rsa"
+	"crypto/sha256"
+	"crypto/x509"
+	"encoding/base64"
+	"encoding/json"
+	"encoding/pem"
+	"errors"
+	"r3/config"
+	"r3/log"
+	"r3/types"
+)
+
+// public key of OC2020_license_key, created 2020-10-05
+var publicKey = `-----BEGIN RSA PUBLIC KEY-----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==
+-----END RSA PUBLIC KEY-----`
+
+func SetLicense() {
+	if config.GetString("licenseFile") == "" {
+		log.Info("server", "skipping activation check, no license installed")
+		return
+	}
+
+	var licFile types.LicenseFile
+
+	if err := json.Unmarshal([]byte(config.GetString("licenseFile")), &licFile); err != nil {
+		log.Error("server", "could not unmarshal license from config", err)
+		return
+	}
+
+	licenseJson, err := json.Marshal(licFile.License)
+	if err != nil {
+		log.Error("server", "could not marshal license data", err)
+		return
+	}
+	hashed := sha256.Sum256(licenseJson)
+
+	// get license signature
+	signature, err := base64.URLEncoding.DecodeString(licFile.Signature)
+	if err != nil {
+		log.Error("server", "could not decode license signature", err)
+		return
+	}
+
+	// verify signature
+	data, _ := pem.Decode([]byte(publicKey))
+	if data == nil {
+		log.Error("server", "could not decode public key", errors.New(""))
+		return
+	}
+	key, err := x509.ParsePKCS1PublicKey(data.Bytes)
+	if err != nil {
+		log.Error("server", "could not parse public key", errors.New(""))
+		return
+	}
+
+	if err := rsa.VerifyPKCS1v15(key, crypto.SHA256, hashed[:], signature); err != nil {
+		log.Error("server", "failed to verify license", err)
+		return
+	}
+
+	// set license
+	log.Info("server", "setting license")
+	config.License = licFile.License
+}