delphimvcframework/lib/loggerpro/LoggerPro.EMailAppender.pas
2024-01-23 17:25:13 +01:00

136 lines
3.6 KiB
ObjectPascal

// *************************************************************************** }
//
// LoggerPro
//
// Copyright (c) 2010-2023 Daniele Teti
//
// https://github.com/danieleteti/loggerpro
//
// ***************************************************************************
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// ***************************************************************************
unit LoggerPro.EMailAppender;
interface
uses
LoggerPro, System.Classes, System.DateUtils,
idSMTP;
type
{
@abstract(Logs sending message to an email address)
To learn how to use this appender, check the sample @code(email_appender.dproj)
@author(Daniele Teti - d.teti@bittime.it)
}
TLoggerProEMailAppender = class(TLoggerProAppenderBase)
private
FSMTP: TIdSMTP;
FFromAddresses: string;
FToAddresses: string;
protected
/// <summary>
/// Ovveride this method in descendant if you want a different formatting for
/// message subject or body
/// </summary>
procedure PrepareMessage(const aLogItem: TLogItem; out aSubject, aBody: String); virtual;
public
constructor Create(aSMTP: TIdSMTP; const aFromAddresses, aToAddresses: String; aLogItemRenderer: ILogItemRenderer = nil); reintroduce;
procedure Setup; override;
procedure TearDown; override;
procedure WriteLog(const aLogItem: TLogItem); override;
procedure TryToRestart(var Restarted: Boolean); override;
end;
implementation
uses
System.SysUtils, IdMessage;
constructor TLoggerProEMailAppender.Create(aSMTP: TIdSMTP; const aFromAddresses, aToAddresses: String; aLogItemRenderer: ILogItemRenderer);
begin
inherited Create(aLogItemRenderer);
FSMTP := aSMTP;
FFromAddresses := aFromAddresses;
FToAddresses := aToAddresses;
{ by default, email appender sends only errors }
SetLogLevel(TLogType.Error);
end;
procedure TLoggerProEMailAppender.PrepareMessage(const aLogItem: TLogItem;
out aSubject, aBody: String);
begin
aSubject := 'LoggerPro ' + aLogItem.LogTypeAsString.ToUpper + ' [' + aLogItem.LogTag + ']';
aBody := FormatLog(aLogItem);
end;
procedure TLoggerProEMailAppender.Setup;
begin
inherited;
end;
procedure TLoggerProEMailAppender.TearDown;
begin
try
FSMTP.Free;
except
// do nothing
end;
end;
procedure TLoggerProEMailAppender.TryToRestart(var Restarted: Boolean);
begin
inherited;
try
FSMTP.Disconnect(false);
except
end;
Restarted := True;
end;
procedure SendEmail(aSMTP: TIdSMTP; const aFromAddresses, aToAddresses: String; const Subject, Body: String);
var
Msg: TIdMessage;
begin
Msg := TIdMessage.Create(nil);
try
Msg.From.Text := aFromAddresses;
Msg.Recipients.EMailAddresses := aToAddresses;
Msg.Body.Text := Body;
Msg.Subject := Subject;
if not aSMTP.Connected then
aSMTP.Connect;
aSMTP.Send(Msg);
try
aSMTP.Disconnect(false);
except
end;
finally
Msg.Free;
end;
end;
procedure TLoggerProEMailAppender.WriteLog(const aLogItem: TLogItem);
var
lBody: string;
lSubject: string;
begin
PrepareMessage(aLogItem, lSubject, lBody);
SendEmail(FSMTP, FFromAddresses, FToAddresses, lSubject, lBody);
end;
end.