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Revision as of 01:39, 24 April 2018
Return to Unit Reference
Description
Ultibo POP3 interface unit
To be documented
Constants
[Expand]
POP3 specific constants POP3_*
POP3_LINE_END = Chr(13) + Chr(10);
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CR LF
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POP3_BUFFER_SIZE = SIZE_4K;
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[Expand]
POP3 status POP3_STATUS_*
POP3_STATUS_NONE = 0;
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POP3_STATUS_CONN = 1;
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POP3_STATUS_USER = 2;
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POP3_STATUS_PASS = 3;
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POP3_STATUS_APOP = 4;
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POP3_STATUS_DATA = 5;
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POP3_STATUS_QUIT = 6;
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POP3_MAX_STATUS = 6;
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[Expand]
POP3 command POP3_COMMAND_*
POP3_COMMAND_STAT = 'STAT';
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POP3_COMMAND_LIST = 'LIST';
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POP3_COMMAND_RETR = 'RETR';
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POP3_COMMAND_DELE = 'DELE';
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POP3_COMMAND_NOOP = 'NOOP';
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POP3_COMMAND_RSET = 'RSET';
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POP3_COMMAND_QUIT = 'QUIT';
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POP3_COMMAND_TOP = 'TOP';
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POP3_COMMAND_UIDL = 'UIDL';
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POP3_COMMAND_USER = 'USER';
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POP3_COMMAND_PASS = 'PASS';
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POP3_COMMAND_APOP = 'APOP';
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[Expand]
POP3 string POP3_STRING_*
POP3_STRING_SUCCESS = '+OK ';
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POP3_STRING_FAILURE = '-ERR ';
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POP3_STRING_COMPLETE = '.';
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POP3_STRING_SIGNON = 'Ultibo POP3 server (version ' + ULTIBO_RELEASE_VERSION + ')';
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POP3_STRING_SIGNOFF = 'Ultibo POP3 server closing connection';
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POP3_STRING_EMPTY_STAT = '0 0';
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POP3_STRING_EMPTY_LIST = '0 messages (0 octets)';
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POP3_STRING_BAD_COMMAND = 'Bad command';
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POP3_STRING_BAD_MESSAGE = 'No such message';
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POP3_STRING_BAD_USERNAME = 'Invalid username or password';
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POP3_STRING_BAD_PASSWORD = 'Invalid username or password';
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POP3_STRING_NO_PERMISSION = 'Permission denied';
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[Expand]
POP3 logging POP3_LOG_*
POP3_LOG_LEVEL_DEBUG = LOG_LEVEL_DEBUG;
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POP3 debugging messages
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POP3_LOG_LEVEL_INFO = LOG_LEVEL_INFO;
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POP3 informational messages
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POP3_LOG_LEVEL_WARN = LOG_LEVEL_WARN;
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POP3 warning messages
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POP3_LOG_LEVEL_ERROR = LOG_LEVEL_ERROR;
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POP3 error messages
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POP3_LOG_LEVEL_NONE = LOG_LEVEL_NONE;
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No POP3 messages
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Type definitions
POP3 client notify event
TPOP3ClientNotifyEvent = procedure(const ARequest:String) of Object;
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POP3 host event
TPOP3HostEvent = function(AConnection:TPOP3Connection):Boolean of Object;
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POP3 count event
TPOP3CountEvent = function(AConnection:TPOP3Connection):Boolean of Object;
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POP3 notify event
TPOP3NotifyEvent = procedure(AConnection:TPOP3Connection; const ARequest:String) of Object;
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POP3 request event
TPOP3RequestEvent = function(AConnection:TPOP3Connection; const ARequest:String; var AReply:String):Boolean of Object;
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POP3 request extended event
TPOP3RequestExEvent = function(AConnection:TPOP3Connection; const ARequest,AData:String; var AReply:String):Boolean of Object;
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POP3 connection event
TPOP3ConnectionEvent = procedure(AConnection:TPOP3Connection) of Object;
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Class definitions
POP3 buffer
[Expand]
TPOP3Buffer = class(TObject)
public
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constructor Create(ASize:LongWord);
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destructor Destroy; override;
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private
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FLock:TCriticalSectionHandle;
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FData:Pointer;
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FSize:LongWord;
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FCount:LongWord;
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FStart:LongWord;
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function AcquireLock:Boolean;
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function ReleaseLock:Boolean;
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function GetCount:LongWord;
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public
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property Count:LongWord read GetCount;
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function ReadData:Char;
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function WriteData(AChar:Char):Boolean;
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function WriteLock(var ASize:LongWord):Pointer;
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function WriteUnlock(ACount:LongWord):Boolean;
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POP3 client
[Expand]
TPOP3Client = class(TWinsock2TCPClient)
public
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constructor Create;
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destructor Destroy; override;
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private
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FOnRequest:TPOP3ClientNotifyEvent;
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FOnReply:TPOP3ClientNotifyEvent;
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FOnRequestStart:TNotifyEvent;
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FOnRequestEnd:TNotifyEvent;
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FBuffer:TPOP3Buffer;
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Buffer for received data
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protected
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function GetReply(var AReply:String):Boolean;
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function SendRequest(const ARequest:String):Boolean;
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public
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property OnRequest:TPOP3ClientNotifyEvent read FOnRequest write FOnRequest;
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property OnReply:TPOP3ClientNotifyEvent read FOnReply write FOnReply;
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property OnRequestStart:TNotifyEvent read FOnRequestStart write FOnRequestStart;
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property OnRequestEnd:TNotifyEvent read FOnRequestEnd write FOnRequestEnd;
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property Buffer:TPOP3Buffer read FBuffer;
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function DoConn(const AHost,APort:String; var AReply:String):Boolean;
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function DoStat(var AReply:String):Boolean;
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function DoList(const AMessage:String; var AReply:String):Boolean;
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function DoRetr(const AMessage:String; var AReply:String):Boolean;
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function DoDele(const AMessage:String; var AReply:String):Boolean;
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function DoNoop(var AReply:String):Boolean;
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function DoRset(var AReply:String):Boolean;
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function DoQuit(var AReply:String):Boolean;
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function DoTop(const AMessage,ACount:String; var AReply:String):Boolean;
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function DoUidl(const AMessage:String; var AReply:String):Boolean;
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function DoUser(const AUsername:String; var AReply:String):Boolean;
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function DoPass(const APassword:String; var AReply:String):Boolean;
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function DoApop(const AUsername,ADigest:String; var AReply:String):Boolean;
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POP3 connection
[Expand]
TPOP3Connection = class(TListObject)
public
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constructor Create;
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destructor Destroy; override;
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private
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FLock:TCriticalSectionHandle;
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FHandle:LongWord;
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FRxByteCount:Int64;
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Bytes Recv Count from Connection
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FTxByteCount:Int64;
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Bytes Sent Count to Connection
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FRequestCount:Int64;
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Requests Recv Count from Connection
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FReplyCount:Int64;
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Replies Sent Count to Connection
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FRequestTime:TDateTime;
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Last Request Time
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FReplyTime:TDateTime;
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Last Reply Time
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FRemoteAddress:String;
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Address of Remote Client
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FStatus:LongWord;
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None,Conn,User,Data etc
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FUsername:String;
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Current Username
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FPassword:String;
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Current Password
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FTimestamp:String;
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Timestamp for APOP authentication
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FThread:TThread;
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TWinsock2TCPServerThread
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FBuffer:TPOP3Buffer;
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Buffer for received data
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function AcquireLock:Boolean;
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function ReleaseLock:Boolean;
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procedure SetHandle(AHandle:LongWord);
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function GetRxByteCount:Int64;
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procedure SetRxByteCount(const ARxByteCount:Int64);
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function GetTxByteCount:Int64;
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procedure SetTxByteCount(const ATxByteCount:Int64);
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function GetRequestCount:Int64;
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procedure SetRequestCount(const ARequestCount:Int64);
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function GetReplyCount:Int64;
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procedure SetReplyCount(const AReplyCount:Int64);
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function GetRequestTime:TDateTime;
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procedure SetRequestTime(const ARequestTime:TDateTime);
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function GetReplyTime:TDateTime;
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procedure SetReplyTime(const AReplyTime:TDateTime);
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function GetRemoteAddress:String;
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procedure SetRemoteAddress(const ARemoteAddress:String);
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procedure SetStatus(AStatus:LongWord);
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function GetUsername:String;
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procedure SetUsername(const AUsername:String);
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function GetPassword:String;
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procedure SetPassword(const APassword:String);
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function GetTimestamp:String;
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procedure SetTimestamp(const ATimestamp:String);
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procedure SetThread(AThread:TThread);
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public
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property Handle:LongWord read FHandle write SetHandle;
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property RxByteCount:Int64 read GetRxByteCount write SetRxByteCount;
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property TxByteCount:Int64 read GetTxByteCount write SetTxByteCount;
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property RequestCount:Int64 read GetRequestCount write SetRequestCount;
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property ReplyCount:Int64 read GetReplyCount write SetReplyCount;
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property RequestTime:TDateTime read GetRequestTime write SetRequestTime;
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property ReplyTime:TDateTime read GetReplyTime write SetReplyTime;
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property RemoteAddress:String read GetRemoteAddress write SetRemoteAddress;
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property Status:LongWord read FStatus write SetStatus;
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property Username:String read GetUsername write SetUsername;
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property Password:String read GetPassword write SetPassword;
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property Timestamp:String read GetTimestamp write SetTimestamp;
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property Thread:TThread read FThread write SetThread;
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property Buffer:TPOP3Buffer read FBuffer;
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procedure IncrementRxByteCount(const ARxByteCount:Int64);
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procedure IncrementTxByteCount(const ATxByteCount:Int64);
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procedure IncrementRequestCount;
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procedure IncrementReplyCount;
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POP3 listener
[Expand]
TPOP3Listener = class(TWinsock2TCPListener)
public
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constructor Create;
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private
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FOnConnected:TPOP3ConnectionEvent;
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FOnDisconnected:TPOP3ConnectionEvent;
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FOnCheckHost:TPOP3HostEvent;
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FOnCheckCount:TPOP3CountEvent;
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FOnRequest:TPOP3NotifyEvent;
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FOnReply:TPOP3NotifyEvent;
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FOnConn:TPOP3RequestEvent;
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FOnStat:TPOP3RequestEvent;
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FOnList:TPOP3RequestEvent;
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FOnRetr:TPOP3RequestEvent;
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FOnDele:TPOP3RequestEvent;
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FOnNoop:TPOP3RequestEvent;
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FOnRset:TPOP3RequestEvent;
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FOnQuit:TPOP3RequestEvent;
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FOnTop:TPOP3RequestExEvent;
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FOnUidl:TPOP3RequestEvent;
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FOnUser:TPOP3RequestEvent;
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FOnPass:TPOP3RequestEvent;
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FOnApop:TPOP3RequestExEvent;
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protected
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procedure DoConnect(AThread:TWinsock2TCPServerThread); override;
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procedure DoDisconnect(AThread:TWinsock2TCPServerThread); override;
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function DoCheckHost(AThread:TWinsock2TCPServerThread):Boolean; virtual;
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function DoCheckCount(AThread:TWinsock2TCPServerThread):Boolean; virtual;
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function DoExecute(AThread:TWinsock2TCPServerThread):Boolean; override;
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procedure DoConn(AThread:TWinsock2TCPServerThread);
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procedure DoStat(AThread:TWinsock2TCPServerThread);
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procedure DoList(AThread:TWinsock2TCPServerThread; const AMessage:String);
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procedure DoRetr(AThread:TWinsock2TCPServerThread; const AMessage:String);
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procedure DoDele(AThread:TWinsock2TCPServerThread; const AMessage:String);
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procedure DoNoop(AThread:TWinsock2TCPServerThread);
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procedure DoRset(AThread:TWinsock2TCPServerThread);
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procedure DoQuit(AThread:TWinsock2TCPServerThread);
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procedure DoTop(AThread:TWinsock2TCPServerThread; const AMessage,ACount:String);
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procedure DoUidl(AThread:TWinsock2TCPServerThread; const AMessage:String);
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procedure DoUser(AThread:TWinsock2TCPServerThread; const AUsername:String);
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procedure DoPass(AThread:TWinsock2TCPServerThread; const APassword:String);
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procedure DoApop(AThread:TWinsock2TCPServerThread; const AUsername,ADigest:String);
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function GetRequest(AThread:TWinsock2TCPServerThread; var ARequest:String):Boolean;
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function SendReply(AThread:TWinsock2TCPServerThread; const AReply:String):Boolean;
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public
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property OnConnected:TPOP3ConnectionEvent read FOnConnected write FOnConnected;
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property OnDisconnected:TPOP3ConnectionEvent read FOnDisconnected write FOnDisconnected;
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property OnCheckHost:TPOP3HostEvent read FOnCheckHost write FOnCheckHost;
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property OnCheckCount:TPOP3CountEvent read FOnCheckCount write FOnCheckCount;
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property OnRequest:TPOP3NotifyEvent read FOnRequest write FOnRequest;
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property OnReply:TPOP3NotifyEvent read FOnReply write FOnReply;
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property OnConn:TPOP3RequestEvent read FOnConn write FOnConn;
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property OnStat:TPOP3RequestEvent read FOnStat write FOnStat;
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property OnList:TPOP3RequestEvent read FOnList write FOnList;
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property OnRetr:TPOP3RequestEvent read FOnRetr write FOnRetr;
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property OnDele:TPOP3RequestEvent read FOnDele write FOnDele;
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property OnNoop:TPOP3RequestEvent read FOnNoop write FOnNoop;
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property OnRset:TPOP3RequestEvent read FOnRset write FOnRset;
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property OnQuit:TPOP3RequestEvent read FOnQuit write FOnQuit;
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property OnTop:TPOP3RequestExEvent read FOnTop write FOnTop;
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property OnUidl:TPOP3RequestEvent read FOnUidl write FOnUidl;
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property OnUser:TPOP3RequestEvent read FOnUser write FOnUser;
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property OnPass:TPOP3RequestEvent read FOnPass write FOnPass;
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property OnApop:TPOP3RequestExEvent read FOnApop write FOnApop;
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Public variables
POP3 logging
POP3_DEFAULT_LOG_LEVEL:LongWord = POP3_LOG_LEVEL_DEBUG;
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Minimum level for POP3 messages. Only messages with level greater than or equal to this will be printed.
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POP3_LOG_ENABLED:Boolean;
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Function declarations
Initialization functions
[Expand]
procedure POP3Init;
Description: To be documented
POP3 helper functions
[Expand]
procedure POP3Log(Level:LongWord; const AText:String);
Description: To be documented
[Expand]
procedure POP3LogInfo(const AText:String); inline;
Description: To be documented
[Expand]
procedure POP3LogWarn(const AText:String); inline;
Description: To be documented
[Expand]
procedure POP3LogError(const AText:String); inline;
Description: To be documented
[Expand]
procedure POP3LogDebug(const AText:String); inline;
Description: To be documented
Return to Unit Reference
