Adding in initial prototype of the provider

LICENSE

@@ -186,7 +186,7 @@
       same "printed page" as the copyright notice for easier
       identification within third-party archives.
 
-   Copyright [yyyy] [name of copyright owner]
+   Copyright 2018 Justin Nauman 
 
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.

Makefile

@@ -0,0 +1,7 @@
+default: ; @true
+
+# TODO
+# For each .proto file, ensure there is a correpsonding .db.go file present
+.PHONY: protos
+protos:
+	protoc --go_out plugins=grpc:generated/ --proto_path proto/ proto/*.proto

cmd/client.go

@@ -0,0 +1,52 @@
+// Copyright © 2018 Justin Nauman <justin@spantree.net>
+//
+// 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.
+
+package cmd
+
+import (
+	"github.com/spf13/cobra"
+)
+
+// clientCmd represents the client command
+var clientCmd = &cobra.Command{
+	Use:   "client",
+	Short: "A brief description of your command",
+	Long: `A longer description that spans multiple lines and likely contains examples
+and usage of using your command. For example:
+
+Cobra is a CLI library for Go that empowers applications.
+This application is a tool to generate the needed files
+to quickly create a Cobra application.`,
+}
+
+func init() {
+	RootCmd.AddCommand(clientCmd)
+
+	// Here you will define your flags and configuration settings.
+
+	// Cobra supports Persistent Flags which will work for this command
+	// and all subcommands, e.g.:
+	// clientCmd.PersistentFlags().String("foo", "", "A help for foo")
+
+	// Cobra supports local flags which will only run when this command
+	// is called directly, e.g.:
+	// clientCmd.Flags().BoolP("toggle", "t", false, "Help message for toggle")
+
+}

cmd/decrypt.go

@@ -0,0 +1,87 @@
+// Copyright © 2018 Justin Nauman <justin@spantree.net>
+//
+// 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.
+
+package cmd
+
+import (
+	"context"
+	"encoding/base64"
+	"fmt"
+	"log"
+	"net"
+	"time"
+
+	"github.com/jrnt30/aws-kms-k8-enc-provider/v1beta1"
+	"github.com/spf13/cobra"
+	"google.golang.org/grpc"
+)
+
+var cipherText string
+
+// decryptCmd represents the decrypt command
+var decryptCmd = &cobra.Command{
+	Use:   "decrypt",
+	Short: "A brief description of your command",
+	Long: `A longer description that spans multiple lines and likely contains examples
+and usage of using your command. For example:
+
+Cobra is a CLI library for Go that empowers applications.
+This application is a tool to generate the needed files
+to quickly create a Cobra application.`,
+	Run: func(cmd *cobra.Command, args []string) {
+		var err error
+
+		gc, err := grpc.Dial(socketPath,
+			grpc.WithInsecure(),
+			grpc.WithDialer(func(addr string, timeout time.Duration) (net.Conn, error) {
+				return net.DialTimeout("unix", addr, timeout)
+			}))
+
+		if err != nil {
+			log.Fatal(err)
+		}
+		client := v1beta1.NewKeyManagementServiceClient(gc)
+
+		decoded, _ := base64.StdEncoding.DecodeString(cipherText)
+
+		resp, err := client.Decrypt(context.Background(), &v1beta1.DecryptRequest{
+			Cipher: decoded,
+		})
+		if err != nil {
+			log.Fatal(err)
+		}
+		fmt.Println("Got response: ", resp)
+	},
+}
+
+func init() {
+	clientCmd.AddCommand(decryptCmd)
+
+	// Here you will define your flags and configuration settings.
+
+	// Cobra supports Persistent Flags which will work for this command
+	// and all subcommands, e.g.:
+	// decryptCmd.PersistentFlags().String("foo", "", "A help for foo")
+
+	// Cobra supports local flags which will only run when this command
+	// is called directly, e.g.:
+	decryptCmd.Flags().StringVar(&cipherText, "cipher-text", "", "Ciphertext To Decrypt")
+	decryptCmd.MarkFlagRequired("cipher-text")
+}

cmd/encrypt.go

@@ -0,0 +1,78 @@
+// Copyright © 2018 Justin Nauman <justin@spantree.net>
+//
+// 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.
+
+package cmd
+
+import (
+	"context"
+	"encoding/base64"
+	"fmt"
+	"log"
+	"net"
+	"time"
+
+	"github.com/jrnt30/aws-kms-k8-enc-provider/v1beta1"
+	"github.com/spf13/cobra"
+	"google.golang.org/grpc"
+)
+
+var plainText string
+
+// encryptCmd represents the encrypt command
+var encryptCmd = &cobra.Command{
+	Use:   "encrypt",
+	Short: "A brief description of your command",
+	Long: `A longer description that spans multiple lines and likely contains examples
+and usage of using your command. For example:
+
+Cobra is a CLI library for Go that empowers applications.
+This application is a tool to generate the needed files
+to quickly create a Cobra application.`,
+	Run: func(cmd *cobra.Command, args []string) {
+		var err error
+
+		gc, err := grpc.Dial(socketPath,
+			grpc.WithInsecure(),
+			grpc.WithDialer(func(addr string, timeout time.Duration) (net.Conn, error) {
+				return net.DialTimeout("unix", addr, timeout)
+			}))
+
+		if err != nil {
+			log.Fatal(err)
+		}
+		client := v1beta1.NewKeyManagementServiceClient(gc)
+
+		resp, err := client.Encrypt(context.Background(), &v1beta1.EncryptRequest{
+			Plain: []byte(plainText),
+		})
+
+		encodedCipherString := base64.StdEncoding.EncodeToString(resp.Cipher)
+		if err != nil {
+			log.Fatal(err)
+		}
+		fmt.Printf("Got response: [%s]", string(encodedCipherString))
+	},
+}
+
+func init() {
+	clientCmd.AddCommand(encryptCmd)
+	encryptCmd.Flags().StringVar(&plainText, "plain-text", "", "Plain text to encrypt")
+	encryptCmd.MarkFlagRequired("plain-text")
+}

cmd/root.go

@@ -0,0 +1,82 @@
+// Copyright © 2018 Justin Nauman <justin@spantree.net>
+//
+// 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.
+
+package cmd
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
+)
+
+var socketPath string
+var cfgFile string
+
+// RootCmd represents the base command when called without any subcommands
+var RootCmd = &cobra.Command{
+	Use:   "aws-kms-k8-enc-provider",
+	Short: "A brief description of your application",
+	Long: `A longer description that spans multiple lines and likely contains
+examples and usage of using your application. For example:
+
+Cobra is a CLI library for Go that empowers applications.
+This application is a tool to generate the needed files
+to quickly create a Cobra application.`,
+	// Uncomment the following line if your bare application
+	// has an action associated with it:
+	//	Run: func(cmd *cobra.Command, args []string) { },
+}
+
+// Execute adds all child commands to the root command sets flags appropriately.
+// This is called by main.main(). It only needs to happen once to the rootCmd.
+func Execute() {
+	if err := RootCmd.Execute(); err != nil {
+		fmt.Println(err)
+		os.Exit(-1)
+	}
+}
+
+func init() {
+	cobra.OnInitialize(initConfig)
+
+	// Here you will define your flags and configuration settings.
+	// Cobra supports Persistent Flags, which, if defined here,
+	// will be global for your application.
+	RootCmd.PersistentFlags().StringVar(&cfgFile, "config", "", "configuration file to use (default is ~/.aws-kms-k8-enc-provider)")
+	RootCmd.PersistentFlags().StringVar(&socketPath, "socket", "/tmp/kms-grpc", "path to the socket to use")
+}
+
+// initConfig reads in config file and ENV variables if set.
+func initConfig() {
+	if cfgFile != "" { // enable ability to specify config file via flag
+		viper.SetConfigFile(cfgFile)
+	}
+
+	viper.SetConfigName(".aws-kms-k8-enc-provider") // name of config file (without extension)
+	viper.AddConfigPath("$HOME")                    // adding home directory as first search path
+	viper.AutomaticEnv()                            // read in environment variables that match
+
+	// If a config file is found, read it in.
+	if err := viper.ReadInConfig(); err == nil {
+		fmt.Println("Using config file:", viper.ConfigFileUsed())
+	}
+}