From 97c3c39a2fd8937bba3831f8163e2df2bded47b0 Mon Sep 17 00:00:00 2001
From: Tatsuro Shibamura <me@shibayan.jp>
Date: Mon, 6 Jan 2025 15:26:08 +0900
Subject: [PATCH] Adding support to Teams workflow webhook

---
 .../Internal/LegacyTeamsPayloadBuilder.cs     | 39 ++++++++
 .../Internal/TeamsPayloadBuilder.cs           | 95 +++++++++++++++----
 KeyVault.Acmebot/Startup.cs                   |  7 +-
 3 files changed, 122 insertions(+), 19 deletions(-)
 create mode 100644 KeyVault.Acmebot/Internal/LegacyTeamsPayloadBuilder.cs

diff --git a/KeyVault.Acmebot/Internal/LegacyTeamsPayloadBuilder.cs b/KeyVault.Acmebot/Internal/LegacyTeamsPayloadBuilder.cs
new file mode 100644
index 00000000..894445c1
--- /dev/null
+++ b/KeyVault.Acmebot/Internal/LegacyTeamsPayloadBuilder.cs
@@ -0,0 +1,39 @@
+using System;
+using System.Collections.Generic;
+
+namespace KeyVault.Acmebot.Internal;
+
+internal class LegacyTeamsPayloadBuilder : IWebhookPayloadBuilder
+{
+    public object BuildCompleted(string certificateName, DateTimeOffset? expirationDate, IEnumerable<string> dnsNames, string acmeEndpoint)
+    {
+        return new
+        {
+            title = "Acmebot",
+            text = @$"A new certificate has been issued.
+
+**Certificate Name**: {certificateName}
+
+**Expiration Date**: {expirationDate}
+
+**ACME Endpoint**: {acmeEndpoint}
+
+**DNS Names**: {string.Join(", ", dnsNames)}",
+            themeColor = "2EB886"
+        };
+    }
+
+    public object BuildFailed(string functionName, string reason)
+    {
+        return new
+        {
+            title = "Acmebot",
+            text = @$"**{functionName}**
+
+**Reason**
+
+{reason}",
+            themeColor = "A30200"
+        };
+    }
+}
diff --git a/KeyVault.Acmebot/Internal/TeamsPayloadBuilder.cs b/KeyVault.Acmebot/Internal/TeamsPayloadBuilder.cs
index 31a8801c..5bc0e2ab 100644
--- a/KeyVault.Acmebot/Internal/TeamsPayloadBuilder.cs
+++ b/KeyVault.Acmebot/Internal/TeamsPayloadBuilder.cs
@@ -9,17 +9,53 @@ public object BuildCompleted(string certificateName, DateTimeOffset? expirationD
     {
         return new
         {
-            title = "Acmebot",
-            text = @$"A new certificate has been issued.
-
-**Certificate Name**: {certificateName}
-
-**Expiration Date**: {expirationDate}
-
-**ACME Endpoint**: {acmeEndpoint}
-
-**DNS Names**: {string.Join(", ", dnsNames)}",
-            themeColor = "2EB886"
+            type = "message",
+            attachments = new[]
+            {
+                new
+                {
+                    contentType = "application/vnd.microsoft.card.adaptive",
+                    content = new
+                    {
+                        type = "AdaptiveCard",
+                        body = new object[]
+                        {
+                            new
+                            {
+                                type = "TextBlock",
+                                text = "A new certificate has been issued.",
+                                wrap = true
+                            },
+                            new{
+                                type = "FactSet",
+                                facts = new object[]
+                                {
+                                    new
+                                    {
+                                        title = "Certificate Name",
+                                        value = certificateName
+                                    },
+                                    new
+                                    {
+                                        title = "Expiration Date",
+                                        value = expirationDate
+                                    },
+                                    new
+                                    {
+                                        title = "ACME Endpoint",
+                                        value = acmeEndpoint
+                                    },
+                                    new
+                                    {
+                                        title = "DNS Names",
+                                        value = string.Join("\n", dnsNames)
+                                    }
+                                }
+                            }
+                        }
+                    }
+                }
+            }
         };
     }
 
@@ -27,13 +63,36 @@ public object BuildFailed(string functionName, string reason)
     {
         return new
         {
-            title = "Acmebot",
-            text = @$"**{functionName}**
-
-**Reason**
-
-{reason}",
-            themeColor = "A30200"
+            type = "message",
+            attachments = new[]
+            {
+                new
+                {
+                    contentType = "application/vnd.microsoft.card.adaptive",
+                    content = new
+                    {
+                        type = "AdaptiveCard",
+                        body = new object[]
+                        {
+                            new
+                            {
+                                type = "TextBlock",
+                                size = "Medium",
+                                weight = "Bolder",
+                                text = functionName,
+                                style = "heading",
+                                wrap = true
+                            },
+                            new
+                            {
+                                type = "TextBlock",
+                                text = reason,
+                                wrap = true
+                            }
+                        }
+                    }
+                }
+            }
         };
     }
 }
diff --git a/KeyVault.Acmebot/Startup.cs b/KeyVault.Acmebot/Startup.cs
index b96f9e8b..7f16a0b1 100644
--- a/KeyVault.Acmebot/Startup.cs
+++ b/KeyVault.Acmebot/Startup.cs
@@ -97,11 +97,16 @@ public override void Configure(IFunctionsHostBuilder builder)
                 return new SlackPayloadBuilder();
             }
 
-            if (options.Webhook.Host.EndsWith(".office.com", StringComparison.OrdinalIgnoreCase))
+            if (options.Webhook.Host.EndsWith(".logic.azure.com", StringComparison.OrdinalIgnoreCase))
             {
                 return new TeamsPayloadBuilder();
             }
 
+            if (options.Webhook.Host.EndsWith(".office.com", StringComparison.OrdinalIgnoreCase))
+            {
+                return new LegacyTeamsPayloadBuilder();
+            }
+
             return new GenericPayloadBuilder(options);
         });