Library: Net
Package: Mail
Header: Poco/Net/POP3ClientSession.h
Description
This class implements an Post Office Protocol Version 3 (POP3, RFC 1939) client for receiving e-mail messages.
Member Summary
Member Functions: close, deleteMessage, getTimeout, isPositive, listMessages, login, messageCount, retrieveHeader, retrieveMessage, sendCommand, setTimeout
Nested Classes
struct MessageInfo
Information returned by listMessages(). 
Types Aliases
MessageInfoVec
using MessageInfoVec = std::vector < MessageInfo >;
Enumerations
Anonymous
POP3_PORT = 110
Constructors
POP3ClientSession
explicit POP3ClientSession(
const StreamSocket & socket
);
Creates the POP3ClientSession using the given socket, which must be connected to a POP3 server.
POP3ClientSession
POP3ClientSession(
const std::string & host,
Poco::UInt16 port = POP3_PORT
);
Creates the POP3ClientSession using a socket connected to the given host and port.
Destructor
~POP3ClientSession 
virtual ~POP3ClientSession();
Destroys the SMTPClientSession.
Member Functions
close
void close();
Sends a QUIT command and closes the connection to the server.
Throws a POP3Exception in case of a POP3-specific error, or a NetException in case of a general network communication failure.
deleteMessage
void deleteMessage(
int id
);
Marks the message with the given ID for deletion. The message will be deleted when the connection to the server is closed by calling close().
Throws a POP3Exception in case of a POP3-specific error, or a NetException in case of a general network communication failure.
getTimeout
Poco::Timespan getTimeout() const;
Returns the timeout for socket read operations.
listMessages
void listMessages(
MessageInfoVec & messages
);
Fills the given vector with the ids and sizes of all messages available on the server.
Throws a POP3Exception in case of a POP3-specific error, or a NetException in case of a general network communication failure.
login
void login(
const std::string & username,
const std::string & password
);
Logs in to the POP3 server by sending a USER command followed by a PASS command.
Throws a POP3Exception in case of a POP3-specific error, or a NetException in case of a general network communication failure.
messageCount
int messageCount();
Sends a STAT command to determine the number of messages available on the server and returns that number.
Throws a POP3Exception in case of a POP3-specific error, or a NetException in case of a general network communication failure.
retrieveHeader
void retrieveHeader(
int id,
MessageHeader & header
);
Retrieves the message header of the message with the given id and stores it in header.
For this to work, the server must support the TOP command.
Throws a POP3Exception in case of a POP3-specific error, or a NetException in case of a general network communication failure.
retrieveMessage
void retrieveMessage(
int id,
MailMessage & message
);
Retrieves the message with the given id from the server and stores the raw message content in the message's content string, available with message.getContent().
Throws a POP3Exception in case of a POP3-specific error, or a NetException in case of a general network communication failure.
retrieveMessage
void retrieveMessage(
int id,
MailMessage & message,
PartHandler & handler
);
Retrieves the message with the given id from the server and stores it in message.
If the message has multiple parts, the parts are reported to the PartHandler. If the message is not a multi-part message, the content is stored in a string available by calling message.getContent().
Throws a POP3Exception in case of a POP3-specific error, or a NetException in case of a general network communication failure.
retrieveMessage
void retrieveMessage(
int id,
std::ostream & ostr
);
Retrieves the raw message with the given id from the server and copies it to the given output stream.
Throws a POP3Exception in case of a POP3-specific error, or a NetException in case of a general network communication failure.
sendCommand
bool sendCommand(
const std::string & command,
std::string & response
);
Sends the given command verbatim to the server and waits for a response.
Returns true if the response is positive, false otherwise.
Throws a POP3Exception in case of a POP3-specific error, or a NetException in case of a general network communication failure.
sendCommand
bool sendCommand(
const std::string & command,
const std::string & arg,
std::string & response
);
Sends the given command verbatim to the server and waits for a response.
Returns true if the response is positive, false otherwise.
Throws a POP3Exception in case of a POP3-specific error, or a NetException in case of a general network communication failure.
sendCommand
bool sendCommand(
const std::string & command,
const std::string & arg1,
const std::string & arg2,
std::string & response
);
Sends the given command verbatim to the server and waits for a response.
Returns true if the response is positive, false otherwise.
Throws a POP3Exception in case of a POP3-specific error, or a NetException in case of a general network communication failure.
setTimeout
void setTimeout(
const Poco::Timespan & timeout
);
Sets the timeout for socket read operations.
isPositive 
static bool isPositive(
const std::string & response
);