Ensure that an OTP's issuer is correctly escaped when it contains a space

Author: josh-

QRCoder/PayloadGenerator.cs

@@ -2030,11 +2030,11 @@ private void ProcessCommonFields(StringBuilder sb)
 
                 if (Label != null && Issuer != null)
                 {
-                    label = Issuer + ":" + Label;                    
+                    label = escapedIssuer + ":" + Label;
                 }
                 else if (Issuer != null)
                 {
-                    label = Issuer;
+                    label = escapedIssuer;
                 }
 
                 if (label != null)

QRCoderTests/PayloadGeneratorTests.cs

@@ -2660,6 +2660,21 @@ public void one_time_password_generator_time_based_generates_with_standard_optio
         }
 
 
+        [Fact]
+        [Category("PayloadGenerator/OneTimePassword")]
+        public void one_time_password_generator_time_based_generates_with_standard_options_escapes_issuer()
+        {
+            var pg = new PayloadGenerator.OneTimePassword
+            {
+                Secret = "pwq6 5q55",
+                Issuer = "Google Google",
+                Label = "[email protected]",
+            };
+
+            pg.ToString().ShouldBe("otpauth://totp/Google%20Google:[email protected]?secret=pwq65q55&issuer=Google%20Google");
+        }
+
+
         [Fact]
         [Category("PayloadGenerator/OneTimePassword")]
         public void one_time_password_generator_hmac_based_generates_with_standard_options()
@@ -2676,6 +2691,22 @@ public void one_time_password_generator_hmac_based_generates_with_standard_optio
             pg.ToString().ShouldBe("otpauth://hotp/Google:[email protected]?secret=pwq65q55&issuer=Google&counter=500");
         }
 
+        [Fact]
+        [Category("PayloadGenerator/OneTimePassword")]
+        public void one_time_password_generator_hmac_based_generates_with_standard_options_escapes_issuer()
+        {
+            var pg = new PayloadGenerator.OneTimePassword
+            {
+                Secret = "pwq6 5q55",
+                Issuer = "Google Google",
+                Label = "[email protected]",
+                Type = PayloadGenerator.OneTimePassword.OneTimePasswordAuthType.HOTP,
+                Counter = 500,
+            };
+
+            pg.ToString().ShouldBe("otpauth://hotp/Google%20Google:[email protected]?secret=pwq65q55&issuer=Google%20Google&counter=500");
+        }
+
 
         [Fact]
         [Category("PayloadGenerator/ShadowSocksConfig")]