Office365対応 完了

diff --git a/MailDivSender/Office365SendMail.cs b/MailDivSender/Office365SendMail.cs
new file mode 100644 (file)
index 0000000..38da113
--- /dev/null
+++ b/MailDivSender/Office365SendMail.cs
@@ -0,0 +1,185 @@
+using Microsoft.Graph;
+using Microsoft.Identity.Client;
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Net.Http;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MailDivSender
+{
+    /// <summary>
+    /// Office365メール送信
+    /// </summary>
+    public class Office365SendMail : BaseSendMail
+    {
+        /// <summary>
+        /// コンストラクタ
+        /// </summary>
+        public Office365SendMail()
+        {
+        }
+
+        /// <summary>
+        /// ログインプロパイダー
+        /// </summary>
+        public class MsalAuthenticationProvider : IAuthenticationProvider
+        {
+            /// <summary>
+            /// アプリID
+            /// </summary>
+            public string ClientID;
+
+            /// <summary>
+            /// コールバックURI
+            /// </summary>
+            public string MyUri;
+
+            /// <summary>
+            /// トークン
+            /// </summary>
+            public string AccessToken = string.Empty;
+
+            /// <summary>
+            /// 認証要求
+            /// </summary>
+            /// <param name="request"></param>
+            /// <returns></returns>
+            public async Task AuthenticateRequestAsync(HttpRequestMessage request)
+            {
+                var Scopes = new[] { "User.Read", "Mail.Send" };
+
+                if (AccessToken == string.Empty)
+                {
+                    //クライアント構築
+                    var clientApplication = PublicClientApplicationBuilder.Create(ClientID).WithRedirectUri(MyUri).Build();
+                    var ar = await clientApplication.AcquireTokenInteractive(Scopes).ExecuteAsync();
+                    AccessToken = ar.AccessToken;
+                }
+
+                request.Headers.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue("Bearer", AccessToken);
+            }
+        }
+
+        /// <summary>
+        /// 送信
+        /// </summary>
+        /// <param name="callback"></param>
+        /// <param name="countcallback"></param>
+        /// <param name="addresspack"></param>
+        /// <returns></returns>
+        public (bool result, Exception exception) Send(SendMailProgressCallback callback, SendMailProgressCountCallback countcallback, MailInfoPack addresspack)
+        {
+            int iCount = 0;
+            int iAllCount = addresspack.AttachList.Count;
+
+            var ClientID = Properties.Settings.Default.Office365ClientID;
+            var MyUri = Properties.Settings.Default.Office365Uri;
+            Exception exception = null;
+
+            try
+            {
+                var gsc = new GraphServiceClient(new MsalAuthenticationProvider()
+                {
+                    ClientID = ClientID,
+                    MyUri = MyUri,
+                });
+
+                foreach (var filepath in addresspack.AttachList)
+                {
+                    callback($"送信中 {filepath}");
+
+                    var email = new Message
+                    {
+                        ToRecipients = new[] 
+                        {
+                            new Recipient
+                            {
+                                EmailAddress = new EmailAddress
+                                {
+                                    Name = addresspack.ToAddress.Name, 
+                                    Address = addresspack.ToAddress.Address
+                                }
+                            } 
+                        },
+                        From = new Recipient
+                        {
+                            EmailAddress = new EmailAddress
+                            {
+                                Name = addresspack.FromAddress.Name,
+                                Address = addresspack.FromAddress.Address
+                            }
+                        },
+                        Subject = $"{addresspack.Subject} ({iCount + 1}/{iAllCount})",
+                        Body = new ItemBody
+                        {
+                            ContentType = BodyType.Text,
+                            Content = addresspack.Message,
+                        },
+                    };
+                    //CC
+                    foreach (var sendinfopack in addresspack.SendAddressList)
+                    {
+                        if (sendinfopack.Kind == SelectedAddressControl.CCKindType.CC)
+                        {
+                            if(email.CcRecipients == null )
+                                email.CcRecipients = new List<Recipient>();
+
+                            (email.CcRecipients as List<Recipient>).Add(
+                                new Recipient
+                                {
+                                    EmailAddress = new EmailAddress
+                                    {
+                                        Name = sendinfopack.Address.Name,
+                                        Address = sendinfopack.Address.Address
+                                    }
+                                });
+                        }
+                        if (sendinfopack.Kind == SelectedAddressControl.CCKindType.BCC)
+                        {
+                            if (email.BccRecipients == null)
+                                email.BccRecipients = new List<Recipient>();
+
+                            (email.BccRecipients as List<Recipient>).Add(
+                                new Recipient
+                                {
+                                    EmailAddress = new EmailAddress
+                                    {
+                                        Name = sendinfopack.Address.Name,
+                                        Address = sendinfopack.Address.Address
+                                    }
+                                });
+                        }
+                    }
+
+                    //添付
+                    email.Attachments = new MessageAttachmentsCollectionPage();
+                    email.Attachments.Add(new FileAttachment
+                    {
+                        ODataType = "#microsoft.graph.fileAttachment",
+                        ContentBytes = System.IO.File.ReadAllBytes(filepath),
+                        Name = Path.GetFileName(filepath),
+                    });
+
+                    gsc.Me.SendMail(email).Request().PostAsync().Wait();
+
+                    callback($"完了 {filepath}");
+
+                    iCount++;
+
+                    countcallback(iCount);
+                }
+
+                return (result: true, exception: null);
+            }
+            catch( Exception ex )
+            {
+                exception = ex;
+            }
+
+            return (result: false, exception: exception);
+        }
+    }
+}