src/common/session.h

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2003 Hiroyuki Yamamoto
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18  */
  19
  20 #ifndef __SESSION_H__
  21 #define __SESSION_H__
  22
  23 #ifdef HAVE_CONFIG_H
  24 #  include "config.h"
  25 #endif
  26
  27 #include <glib.h>
  28
  29 #include <time.h>
  30 #include <sys/time.h>
  31 #include <unistd.h>
  32
  33 #include "socket.h"
  34
  35 #define SESSION_BUFFSIZE        4096
  36
  37 typedef struct _Session Session;
  38
  39 #define SESSION(obj)    ((Session *)obj)
  40
  41 typedef enum {
  42         SESSION_UNKNOWN,
  43         SESSION_IMAP,
  44         SESSION_NEWS,
  45         SESSION_SMTP,
  46         SESSION_POP3
  47 } SessionType;
  48
  49 typedef enum {
  50         SESSION_READY,
  51         SESSION_SEND,
  52         SESSION_RECV,
  53         SESSION_ERROR,
  54         SESSION_DISCONNECTED
  55 } SessionState;
  56
  57 typedef enum
  58 {
  59         SESSION_MSG_NORMAL,
  60         SESSION_MSG_SEND_DATA,
  61         SESSION_MSG_RECV_DATA,
  62         SESSION_MSG_CONTROL,
  63         SESSION_MSG_ERROR,
  64         SESSION_MSG_UNKNOWN
  65 } SessionMsgType;
  66
  67 typedef gint (*RecvMsgNotify)                   (Session        *session,
  68                                                  const gchar    *msg,
  69                                                  gpointer        user_data);
  70 typedef gint (*RecvDataProgressiveNotify)       (Session        *session,
  71                                                  guint           cur_len,
  72                                                  guint           total_len,
  73                                                  gpointer        user_data);
  74 typedef gint (*RecvDataNotify)                  (Session        *session,
  75                                                  guint           len,
  76                                                  gpointer        user_data);
  77 typedef gint (*SendDataProgressiveNotify)       (Session        *session,
  78                                                  guint           cur_len,
  79                                                  guint           total_len,
  80                                                  gpointer        user_data);
  81 typedef gint (*SendDataNotify)                  (Session        *session,
  82                                                  guint           len,
  83                                                  gpointer        user_data);
  84
  85 struct _Session
  86 {
  87         SessionType type;
  88
  89         SockInfo *sock;
  90
  91         gchar *server;
  92         gushort port;
  93
  94 #if USE_OPENSSL
  95         SSLType ssl_type;
  96 #endif
  97
  98         SessionState state;
  99
 100         time_t last_access_time;
 101         struct timeval tv_prev;
 102
 103         gint conn_id;
 104
 105         gint io_tag;
 106
 107         GString *read_buf;
 108         GByteArray *read_data_buf;
 109         gchar *read_data_terminator;
 110
 111         gchar *write_buf;
 112         gchar *write_buf_p;
 113         gint write_buf_len;
 114
 115         gpointer data;
 116
 117         /* virtual methods to parse server responses */
 118         gint (*recv_msg)                (Session        *session,
 119                                          const gchar    *msg);
 120
 121         gint (*send_data_finished)      (Session        *session,
 122                                          guint           len);
 123         gint (*recv_data_finished)      (Session        *session,
 124                                          guchar         *data,
 125                                          guint           len);
 126
 127         void (*destroy)                 (Session        *session);
 128
 129         /* notification functions */
 130         RecvMsgNotify                   recv_msg_notify;
 131         RecvDataProgressiveNotify       recv_data_progressive_notify;
 132         RecvDataNotify                  recv_data_notify;
 133         SendDataProgressiveNotify       send_data_progressive_notify;
 134         SendDataNotify                  send_data_notify;
 135
 136         gpointer recv_msg_notify_data;
 137         gpointer recv_data_progressive_notify_data;
 138         gpointer recv_data_notify_data;
 139         gpointer send_data_progressive_notify_data;
 140         gpointer send_data_notify_data;
 141 };
 142
 143 void session_init       (Session        *session);
 144 gint session_connect    (Session        *session,
 145                          const gchar    *server,
 146                          gushort         port);
 147 gint session_disconnect (Session        *session);
 148 void session_destroy    (Session        *session);
 149
 150 void session_set_recv_message_notify    (Session        *session,
 151                                          RecvMsgNotify   notify_func,
 152                                          gpointer        data);
 153 void session_set_recv_data_progressive_notify
 154                                         (Session        *session,
 155                                          RecvDataProgressiveNotify notify_func,
 156                                          gpointer        data);
 157 void session_set_recv_data_notify       (Session        *session,
 158                                          RecvDataNotify  notify_func,
 159                                          gpointer        data);
 160 void session_set_send_data_progressive_notify
 161                                         (Session        *session,
 162                                          SendDataProgressiveNotify notify_func,
 163                                          gpointer        data);
 164 void session_set_send_data_notify       (Session        *session,
 165                                          SendDataNotify  notify_func,
 166                                          gpointer        data);
 167
 168 #if USE_OPENSSL
 169 gint session_start_tls  (Session        *session);
 170 #endif
 171
 172 gint session_send_msg   (Session        *session,
 173                          SessionMsgType  type,
 174                          const gchar    *msg);
 175 gint session_recv_msg   (Session        *session);
 176 gint session_send_data  (Session        *session,
 177                          const guchar   *data,
 178                          guint           size);
 179 gint session_recv_data  (Session        *session,
 180                          guint           size,
 181                          const gchar    *terminator);
 182
 183 #endif /* __SESSION_H__ */