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119 lines
2.9 KiB
ObjectPascal
119 lines
2.9 KiB
ObjectPascal
unit LoggerPro.EMailAppender;
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{ <@abstract(The unit to include if you want to use @link(TLoggerProRedisAppender))
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@author(Daniele Teti) }
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interface
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uses
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LoggerPro, System.Classes, System.DateUtils,
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idSMTP;
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type
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{
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@abstract(Logs sending message to an email address)
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To learn how to use this appender, check the sample @code(email_appender.dproj)
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@author(Daniele Teti - d.teti@bittime.it)
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}
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TLoggerProEMailAppender = class(TLoggerProAppenderBase)
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private
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FSMTP: TIdSMTP;
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FFromAddresses: string;
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FToAddresses: string;
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protected
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/// <summary>
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/// Ovveride this method in descendant if you want a different formatting for
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/// message subject or body
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/// </summary>
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procedure PrepareMessage(const aLogItem: TLogItem; out aSubject, aBody: String); virtual;
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public
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constructor Create(aSMTP: TIdSMTP; const aFromAddresses, aToAddresses: String); reintroduce;
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procedure Setup; override;
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procedure TearDown; override;
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procedure WriteLog(const aLogItem: TLogItem); override;
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procedure TryToRestart(var Restarted: Boolean); override;
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end;
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implementation
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uses
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System.SysUtils, IdMessage;
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const
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DEFAULT_LOG_FORMAT = '%0:s [TID %1:-8d][%2:-8s] %3:s [%4:s]';
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constructor TLoggerProEMailAppender.Create(aSMTP: TIdSMTP; const aFromAddresses, aToAddresses: String);
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begin
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inherited Create;
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FSMTP := aSMTP;
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FFromAddresses := aFromAddresses;
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FToAddresses := aToAddresses;
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{ by default, email appender sends only errors }
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SetLogLevel(TLogType.Error);
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end;
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procedure TLoggerProEMailAppender.PrepareMessage(const aLogItem: TLogItem;
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out aSubject, aBody: String);
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begin
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aSubject := 'LoggerPro ' + aLogItem.LogTypeAsString.ToUpper + ' [' + aLogItem.LogTag + ']';
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aBody := Format(DEFAULT_LOG_FORMAT, [datetimetostr(aLogItem.TimeStamp),
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aLogItem.ThreadID, aLogItem.LogTypeAsString, aLogItem.LogMessage,
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aLogItem.LogTag]);
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end;
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procedure TLoggerProEMailAppender.Setup;
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begin
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//
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end;
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procedure TLoggerProEMailAppender.TearDown;
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begin
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try
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FSMTP.Free;
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except
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// do nothing
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end;
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end;
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procedure TLoggerProEMailAppender.TryToRestart(var Restarted: Boolean);
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begin
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inherited;
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try
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FSMTP.Disconnect(false);
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except
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end;
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Restarted := True;
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end;
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procedure SendEmail(aSMTP: TIdSMTP; const aFromAddresses, aToAddresses: String; const Subject, Body: String);
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var
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Msg: TIdMessage;
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begin
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Msg := TIdMessage.Create(nil);
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try
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Msg.From.Text := aFromAddresses;
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Msg.Recipients.EMailAddresses := aToAddresses;
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Msg.Body.Text := Body;
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Msg.Subject := Subject;
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if not aSMTP.Connected then
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aSMTP.Connect;
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aSMTP.Send(Msg);
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try
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aSMTP.Disconnect(false);
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except
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end;
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finally
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Msg.Free;
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end;
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end;
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procedure TLoggerProEMailAppender.WriteLog(const aLogItem: TLogItem);
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var
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lBody: string;
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lSubject: string;
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begin
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PrepareMessage(aLogItem, lSubject, lBody);
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SendEmail(FSMTP, FFromAddresses, FToAddresses, lSubject, lBody);
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end;
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end.
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