smtp.h

Shorthand是一个强大的脚本语言

#ifndef __smtp_h
#define __smtp_h
//============================================================================
// $Header: /shorthand/src/smtp.h 2     8/28/02 6:27a Arm $
//-----------------------------------------------------------------------------
// Author: Andrei Remenchuk <[e-mail]>
//-----------------------------------------------------------------------------
// smtp.h: declaration of SMTP client object
//-----------------------------------------------------------------------------
#include <stdarg.h>

/**
 * Simple SMTP client
 */
class CSMTPSession {

private:
    int socketTimeout; // socket timeout
    char* host; // SMTP server host name
    int port; // SMTP port
    int status; // status of last command
    bool needWSACleanup; // true if WSAStartup has been called
    int sock; // socket handle
    char* localHostName; // name of this host
   
    char* inData; // inbound data buffer
    int inLength, inCapacity; // length and capacity of inData

    char* errorText; // last error text
    int errorCapacity; // capacity of errorText buffer
    int responseCode; // last response code
    const char* contentType; // content type used for outbound messages

private:

    int post(const char* format, ...);
    void setError(const char* format, va_list args);
    void setError(const char* format, ...);
    int  wsError(const char* format, ...);
    int rejectResponse();
    int smtpError();
    void ensureInCapacity(int n);
    int consume();
    const char* getInData();
    void flushInData();
    const char* getLocalHostName() { return localHostName; }

public:

    /** 
     * Constructs SMTP client for conversation with specified host at
     * the given port. No connection is made at this point.
     */
    CSMTPSession(const char* host, int port);
    
    int connect();

    /**
     * Sets value of "Content-Type:" header field for outbound messages.
     */
    void setContentType(const char* contentType);
    
    /**
     * Sends e-mail message. Connection is automatically closed when 
     * this function finishes.
     *
     * parameters:
     *     from [IN] - message sender
     *     to [IN] - message recipient(s)
     *     subject [IN] - message subject
     *     body [IN] - message body
     * 
     * return value:
     *     zero if delivery was successfull.
     *     non-zero error code if delivery failed (getErrorText() provides details).
     */
    int sendMessage(const char* from, const char* to, const char* subject, const char* body);

    /**
     * Returns status of last operation (0=OK).
     */
    int getStatus() { return status; }

    /**
     * Returns error text after failed delivery.
     */
    const char* getErrorText();

    /**
     * Returns last SMTP response code (used internally).
     */
    int getResponseCode() { return responseCode; }
    
    int disconnect();

    ~CSMTPSession();
};


bool getLocalIP(char* ip);


#endif // __smtp_h