Using system; using system.net; using system.net.sockets; using system.collections;
Namespace lion.web.mail {/ * create by lion 2004-04-23 19:00 Support .NET Framework Beta 2 * / #Region AspnetPager Server Control
/// // / message can be transmitted /// public class smtpmail {via SMTP mail service or any SMTP server built in Microsoft Windows 2000.
Private string enter = "/ r / n";
/// /// Setting the language code, the default setting is GB2312, if it is not required to be set to "" /// private string _charset = "GB2312";
/// /// sender address /// private string _from = ""
/// /// sender name /// private string _fromname = ""
/// /// Reply email address /// /// public string replyto = "
/// /// Recipient name /// private string _recipientname = "
/// /// Recipient list /// private haShtable recipient = new hashtable ();
/// /// mail server domain name /// private string mailserver = "
/// /// Mail server port number /// private int mailserverport = 25;
/// /// SMTP authentication User Name /// private string username = "";
/// /// SMTP authentication password /// private string password = "";
/// //: Do not need SMTP verification /// private bool esmtp = false;
/// /// is HTML mail /// private bool _html = false;
/// /// Email attachment list /// private ilist attachments;
/// /// message Send priority, can be set to "High", "Normal", "Low" or "1", "3", "5" /// Private String Priority = "Normal"; /// /// mail topic /// private string _subject;
/// /// message body /// private string _body; /// /// secret recipient list /// /// private hashTable RecipientBCC = new hashtable ();
/// /// Repair number /// private int RecipientNum = 0;
/// /// Up to the number of recipients /// private INT RecipientMaxNum = 5;
/// /// Distinguisher number /// /// private int RecipientBccnum = 0;
/// /// Error message feedback /// private string errmsg;
/// /// TcpClient object for connection server /// private tclient tc;
/// ///// private networkStream ns; /// /// server interactive record /// private string logs = "
/// /// SMTP error code hash table /// private hashtable errcodeht = new hashtable ();
/// /// SMTP correct code hash table /// private hashtable rightcodeht = new hashtable ();
/// /// Initialization new instance ///// / summary> public smtpmail () {attachments = new system.collections.arrayList ( }
#Region Properties
/// /// mail topic /// public string subject {get {return this._subject;} set {this._subject = value;}}
/// /// message body /// public string body {get {return this._body;} set {this._body = value;}} /// /// People address //// public string from {get {return _from;} set {this._from = value;}}
/// /// Setting the language code, the default setting is GB2312, if you do not need to be set to "" /// public string charset {get {returnim "}}} set {THIS ._charset = value;}}
/// /// sender name ////// public string fromname {get {return this._fromname;} set {this._fromname = value;}}
/// /// Recipient Name /// public string recipientname {get {return this._recipientname;} set {this._recipientname = value;}} /// // / Mail Server Domain Name and Verification Information /// Shape As: "User: Pass@www.server.com: 25", you can also save secondary information. Such as "User: Pass@www.server.com" or "www.server.com" /// public string maildomain {set {string maidomain = value.trim (); int tempint
IF (Maidomain! = "") {tempint = maidomain.indexof ("@"); if (Tempint! = - 1) {string str = maidomain.substring (0, tempint); mailserverusername = str.substring (0, STR) .Indexof (":")); mailserverpassword = str.substring (str.indexof ("::") 1, str.length-str.indexof
(":") - 1); maidomain = maidomain.substring (Tempint 1, Maidomain.Length-Tempint-1);}
tempint = maidomain.IndexOf ( ":"); if (! tempint = - 1) {mailserver = maidomain.Substring (0, tempint); mailserverport = System.Convert.ToInt32 (maidomain.Substring (tempint 1, maidomain.Length -TemPint-1));} else {mailserver = maidomain
}
}
}
/// /// Mail server port number /// public int maildomainport {set {mailserverport = value;}}
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////> {● = value = "") {username = value.trim (); Else {username = ""; esmtp = false;}}}
/////////////////////////////////////////////////////////////////////////////////////////////bit = value;}}
/// /// mail Send priority, can be set to "High", "Normal", "Low" or "1", "3", "5" /// public string priority {Set {switch (value.tolower ()) {copy "high": priority = "high"; break;
Case "1": priority = "high"; Break;
Case "Normal": priority = "normal"; Break;
Case "3": priority = "normal"; Break;
Case "low": priority = "low"; Break;
Case "5": priority = "low"; Break;
Default: priority = "normal"; Break;}}}
/// /// is HTML mail /// public bool html {get {returnim {this._html = value;}}
/// /// Error message feedback /// public string errmsg;}} /// /// server interaction record, if this component cannot be used SMTP server, please send me the logs when the error is (lion-a@sohu.com), I will find it as soon as possible.
the reason. /// public string logs {get {return logs;}}
/// /// Most recipients /// public int RecipientMaxnum {set {recipientmaxnum = value;}}
#ndregion
#Region Methods
/// /// Add mail attachment /// /// attachment absolute path public void addattachment (params string [] filepath) {ix ( FilePath == NULL) {Throw ("FilePath"));} for (int i = 0; i // / Add a set of recipients (not more than RecipientMaxNum), parameter is a string array /// /// Save a string with the recipient address array (not more than recipientmaxnum a) public bool AddRecipient (params string [] Recipients) {if (Recipient == null) {Dispose (); throw (new ArgumentNullException ( "Recipients"));} for (int i = 0; I /// Send an email method, all parameters are set by attribute. /// public bool send () {if (mailserver.trim () == "" {throw ("Recipient", "must specify SMTP server"));
Return sendemail ();
/// /// Send email method /// ///
Interest, such as "www.smtpserver.com" public bool send (string smtpserver) {maildomain = SMTPSERVER; RETURN Send ();} /// /// Send Mail Method /// /// SMTP server information, such as "UserName: Password@www.smtpserver.com: 25", you can also remove some times
Interest, such as "www.smtpserver.com" /// sender Mail address /// sender name < / param> /// Recipient address /// Referth /// Whether html mail /// Mail topic /// mail body public bool send (String SMTPServer, String from, String fromname, String to, String Toname, Bool HTML, STRING
subject, string body) {MailDomain = smtpserver; From = from; FromName = fromname; AddRecipient (to); RecipientName = toname; Html = html; Subject = subject; Body = body; return Send ();}
#ndregion
#Region Private Helper Functions
/// /// Add a recipient /// /// Recipient Address Private Bool AddRecipient (String Recipients) {IF RecipientNum
"));}}
Void Dispose () {if (ns! = null) ns.close (); if (tc! = null) tc.close ();} /// /// SMTP response code hash table /// privated () {errcodeht.add ("500", "mailbox address error"); errcodeht.add ("501", "Parameter Format Error"); errcodeht.add ("502", "command Not implemented "); errcodeht.add (" 503 "," Server requires SMTP verification "); errcodeht.add (" 504 "," command parameter is not implemented "); errcodeht.add (" 421 "," service is not ready, Turning off the transport channel "); errcodeht.add (" 450 ", the email operation required by the requirements is not completed, the mailbox is unavailable (for example, mailbox busy)"); errcodeht.add ("550", "The mail operation is not completed, The mailbox is unavailable (for example, mailbox is not found, or is not accessible) "); errcodeht.add (" 451 "," abandon the requirements of the required operation; error during processing "); errcodeht.add (" 551 "," User non-local , Please try "); errcodeht.add (" 452 "," system storage is insufficient, the required operation is not executed "); errcodeht.add (" 552 "," excess storage allocation, required operation Execute "); errcodeht.add (" 553 "," mailbox name is unavailable, the required operation is not executed (such as mailbox format error) "); errcodeht.add (" 432 "," requires a password conversion "); errcodeht. Add ("534", "authentication mechanism is too simple"); errcodeht.add ("538", "Current Request Certification Mechanism Requires"); Errcodeht.Add ("454", "Temporary Certification"); errcodeht. Add ("530", "requires authentication");
Rightcodeht.Add ("220", "Service Ready"); RightCodeht.Add ("250", "Required Mail Operation"); RightCodeht.Add ("251", "User Non-Local, will forward to "); RightCodeht.add (" 354 "," Start Entry Enter, "End" in . ); RightCodeht.Add ("221", "Service Close Transfer Channel"); RightCodeht.Add ( "334", "server response verification base64 string"); RightCodeht.Add ("235", "Verification Success");
/// /// The string is encoded as Base64 string /// /// String private string base64encode to encode Private String Base64Encode ) {Byte [] barray; barray = encoding.default.getBytes (str); return convert.tobase64string (barray);} /// /// Decoding the base64 string is normal string /// /// String private string base64decode (string str) {byte [] barray; barray = convecture.default.getstring (STR); Return encoding.default.getstring Barray;}
/// ///> File stream /// /// Accessories's absolute path private string getStream (String FilePath) {/ / Establish file flow object system.io.filestream filestr = new system.io.filestream (filepath, system.io.filemode.open); Byte [] by = new byte [system.convert.toint32 (fileStr.Length)]; FILESTR.READ (By, 0, By.Length); filestr.close (); return (system.convert.tobase64string (by));}
/// /// Send SMTP command /// private bool sendcommand (string str) {byte [] WriteBuffer; if (str == null || str.trim () == String.empty ) {RETURN TRUE;} logs = Str; WriteBuffer = Encoding.default.getbytes (STR); try {ns.write (WriteBuffer, 0, WriteBuffer.Length);} catch {errmsg = "Network connection error"; RETURN FALSE; } Return True;}
/// /// Receive SMTP server response /// private string recnse () {int streemsize; string returnvalue = string.empty; Byte [] Readbuffer = new byte [1024]; try {streamsize = ns.read (readbuffer, 0, readbuffer.Length);} catch {errmsg = "Network connection error"; return "false";} if (streamsize == 0) {Return ReturnValue;} else {returnvalue = encoding.default .Getstring (readbuffer) .substring (0, streamsize); logs = returnvalue this.enter; return returnvalue;}}
/// /// interacts with the server, send a command and receives the response. /// /// A command to send /// If the error, the information you want to feedback private Bool Dialog (String Str, String Errstr) {if (Str == Null || Str.trim () == "" "{Return true;}} (sendcommand (STR)) {string rr = recvResponse (); if ( RR == "false") {return false;} string rrcode = r.substring (0, 3); if (rightcodeht [rcode]! = Null) {ket true;} else {if (errcodeht [rrcode]! = Null ) {Errmsg = (rrcode errcodeht [rrcode] .tostring ()); errmsg = Enter;} else {errmsg = rr;} errmsg = errstr; return false;}} else {Return false;}
}
/// /// interacts with the server, sends a set of commands and receives the response. ///
Private bool dialog (str, str, string errstr) {for (int i = 0; i
Return true;} /// /// sendemail /// private bool sendemail () {// Connection Network TRY {TC = New TcpClient (MailServer, MailServerPort);} catch (exception e) {errmsg = e.tostring (); return false;}
Ns = tc.getStream (); SMTPCodeAdd ();
/ / Verify that the network connection is correct if (rightcodeht [recject "(). Substring (0, 3)] == null) {errmsg =" Network connection failed "; return false;}
String [] SendBuffer; String SendBuffersTr;
// Perform SMTP verification if (esmtp) {sendbuffer = new string [4]; sendbuffler [0] = "ehlo" mailserver enter; sendbuffer [1] = "auth login" enter; sendbuffer [2] = base64encode Username) Enter; SendBuffer [3] = base64encode (password) Enter; if (! Dialog (SendBuffer, "SMTP server verification failed, check the username and password.")) Return false;} else {sendbufferstr = "Helo" MailServer Enter; if (! Dialog (SendBufferstr, ")) Return False;}
// sendbufferstr = "Mail from: <" from "> Enter; if (! Dialog (sendbufferstr," sender address error, or no empty ")) Return False;
// sendbuffer = new string [RecipientMaxNum]; for (int i = 0; i " enter;
} IF (! Dialog (SendBuffer, "Incomplete")) Return False;
/ * Sendbuffer = new string [10]; for (int i = 0; i
SendBuffer [I] = "RCPT TO: <" RecipientBCC [i] .tostring () "> ENTER;
}
If (! Dialog (SendBuffer, "PassBuffer")) Return False; * / sendbufferstr = "Data" Enter; if (! Dialog (sendbufferstr, ")) Return False; sendbufferstr =" from: " Fromname " <" from "> enter;
//if(ReplyTo.trim () != "" // {// sendbufferstr = "reply-to:" replyto enter; //}
// sendbufferstr = "TO:" RecipientName "<" Recipient [0] " Enter; sendbuffrstr =" to: =? " CHARSET.TOUPPER () " B? " Base64Encode RecipientName) "? =" "<" Recipient [0]
">" ENTER; SendBufferstr = "CC:"; for (int i = 0; i "; seundbufferstr = Enter;
SendBufferstr = ((Subject == String.empty || Subject == NULL)? "Subject:": ((Charset == ")? (" Subject: "
Subject) :( "Subject:" "=?" "? B?" Base64encode (subject) "? ="))) Enter; sendbufferstr = "x-priority:" priority enter; SendBufferstr = "X-MSMail-priority:" priority enter; SendBufferstr = "Importance:" priority enter; SendBufferstr = "X-Mailer: Lion.Web.Mail.SmtpMail Pubclass [cn]" Enter; sendbufferstr = "mime-version: 1.0" enter; if (attachments.count! = 0) {sendBufferstr = "content-type: multipart / mix;" Enter; sendbufferstr = "boundary = /" === == " (html?" 001_dragon520636771063 _ ":" 001_dragon303406132050 _ ") " ===== / "" ENTER ENTER;
IF (html) {if (attachments.count == 0) {sendbufferstr = "Content-type: multipart / alternative;" Enter; // Content format and separator sendbufferstr = "boundary = /" ==== = 003_Dragon520636771063 _ ===== / "" ENTER ENTER;
SendBufferstr = "this is a multi-part message in mime format." ENTER ENTER;} else {sendbufferstr = "this is a multi-part message in mime format." ENTER ENTER; SendBufferstr = "- - ===== 001_dragon520636771063 _ ===== " enter; sendbufferstr =" content-type: multipart / alternative; " enter; // content format and separator sendbufferstr =" boundary = / "=== == 003_Dragon520636771063 _ ===== / "" Enter Enter;} sendbufferstr = "- ===== 003_Dragon520636771063 _ =====" Enter; sendbufferstr = "Content-Type: text / plain; " Enter; SendBufferstr = ((Charset ==")? ("Charset = /" ISO-8859-1 / "): (" charset = / ""
Charset.tolower () "/" ")) Enter; sendbufferstr =" content-transfer-encoding: base64 " ENTER ENTER; sendbufferstr = base64encode (" mail content is HTML format, select HTML mode ") ENTER ENTER;
SendBufferstr = "- ===== 003_dragon520636771063 _ =====" ENTER;
SendBufferstr = "Content-Type: Text / HTML;" Enter; SendBufferstr = ("Charset = /" ISO-8859-1 / "): (" charset = / "
Charset.tolower () "/" ")) Enter; sendbufferstr =" Content-Transfer-Encoding: Base64 " ENTER ENTER; SendBufferstr = Base64Encode (body) ENTER ENTER; SendBufferstr =" - == === 003_dragon520636771063 _ ===== - " ENTER;} else {if (attachments.count! = 0) {sendbufferstr =" - ===== 001_dragon303406132050 _ ===== " ENTER;} SendBufferstr = "Content-Type: Text / Plain;" Enter; SendBufferstr = ("CharSet = /" ISO-8859-1 / "): (" charset = / " Charset.ToLower () "/" ")) enter; SendBufferstr =" Content-Transfer-Encoding: base64 " enter enter; SendBufferstr = Base64Encode (Body) enter;} // SendBufferstr =" Content-Transfer -ENCODING: BASE64 " ENTER;
IF (attachments.count! = 0) {for (int i = 0; i
(? Html "001_Dragon520636771063 _": "001_Dragon303406132050_") "=====" enter; // SendBufferstr = "Content-Type: application / octet-stream" enter; SendBufferstr = "Content-Type: text / plain; enter; sendbufferstr = "name = /" =? " charset.toupper () "? b? " Base64Encode
(filepath.substring ("//") 1)) "? = /" " Enter; sendbufferstr =" Content-Transfer-Encoding: Base64 " ENTER; SendBufferstr =" Content-Disposition : attachment; " Enter; sendbufferstr =" filename = / "=?" charset.toupper () "? b?" base64encode (filepath.substring (filepath.lastIndexof ("//") 1)) "? = /" Enter Enter; sendbufferstr = getStream (filepath) ENTER ENTER;} SendBufferstr = "- =====" (HTML? "001_dragon520636771063 _": "001_dragon303406132050_")
"===== -" Enter Enter;} SendBufferstr = Enter "." Enter;
IF (! Dialog (SendBufferstr, "Error Letter Information)) Return False;
SendBufferstr = "quit" enter; if (! Dialog (SendBufferstr, "Disconnecting When Connection Error")) Return False;
ns.close (); tc.close (); return true;
#ndregion
#REGON / * /// /// Add a Dissipner /// /// Recipient address public bool addrecipientbcc (String str) {if (str == null || str.Trim () == "") return true; if (RecipientBCCNum <10) {RecipientBCC.Add (RecipientBCCNum, str); RecipientBCCNum ; return true;} else {errmsg = "Too much recipient"; return false;}}
/// // / Add a set of portable recipients (no more than 10), parameter is a string number / /// /// Save a receipt Human address string array (no more than 10) public bool addrecipientbcc (string [] str) {for (int i = 0; i
#ndregion}
