Add Microsoft auth provider

Microsoft uses JSON Web Tokens (JWT) as OAuth tokens. These can run to many thousands of characters which are too long for TTYs. Work around this by base64-encoding the token and chunk it into smaller pieces.

Closes #70 

1 files changed, 13 insertions, 2 deletions

diff --git a/cmd/cashier/main.go b/cmd/cashier/main.go
index f448a25..1ee9455 100644
--- a/cmd/cashier/main.go
+++ b/cmd/cashier/main.go
@@ -1,6 +1,9 @@
 package main
 
 import (
+	"bufio"
+	"bytes"
+	"encoding/base64"
 	"fmt"
 	"log"
 	"net"
@@ -46,8 +49,16 @@ func main() {
 	}
 
 	fmt.Print("Enter token: ")
-	var token string
-	fmt.Scanln(&token)
+	scanner := bufio.NewScanner(os.Stdin)
+	var buffer bytes.Buffer
+	for scanner.Scan(); scanner.Text() != "."; scanner.Scan() {
+		buffer.WriteString(scanner.Text())
+	}
+	tokenBytes, err := base64.StdEncoding.DecodeString(buffer.String())
+	if err != nil {
+		log.Fatalln(err)
+	}
+	token := string(tokenBytes)
 
 	cert, err := client.Sign(pub, token, c)
 	if err != nil {