src/common/session.h

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2009 Hiroyuki Yamamoto and the Claws Mail team
   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 3 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, see <http://www.gnu.org/licenses/>.
  17  *
  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 <unistd.h>
  31
  32 #include "socket.h"
  33
  34 #define SESSION_BUFFSIZE        4096
  35
  36 typedef struct _Session Session;
  37
  38 #define SESSION(obj)    ((Session *)obj)
  39
  40 typedef enum {
  41         SESSION_UNKNOWN,
  42         SESSION_IMAP,
  43         SESSION_NEWS,
  44         SESSION_SMTP,
  45         SESSION_POP3
  46 } SessionType;
  47
  48 typedef enum {
  49         SESSION_READY,
  50         SESSION_SEND,
  51         SESSION_RECV,
  52         SESSION_EOF,
  53         SESSION_TIMEOUT,
  54         SESSION_ERROR,
  55         SESSION_DISCONNECTED
  56 } SessionState;
  57
  58 typedef enum
  59 {
  60         SESSION_MSG_NORMAL,
  61         SESSION_MSG_SEND_DATA,
  62         SESSION_MSG_RECV_DATA,
  63         SESSION_MSG_CONTROL,
  64         SESSION_MSG_ERROR,
  65         SESSION_MSG_UNKNOWN
  66 } SessionMsgType;
  67
  68 typedef gint (*RecvMsgNotify)                   (Session        *session,
  69                                                  const gchar    *msg,
  70                                                  gpointer        user_data);
  71 typedef gint (*RecvDataProgressiveNotify)       (Session        *session,
  72                                                  guint           cur_len,
  73                                                  guint           total_len,
  74                                                  gpointer        user_data);
  75 typedef gint (*RecvDataNotify)                  (Session        *session,
  76                                                  guint           len,
  77                                                  gpointer        user_data);
  78 typedef gint (*SendDataProgressiveNotify)       (Session        *session,
  79                                                  guint           cur_len,
  80                                                  guint           total_len,
  81                                                  gpointer        user_data);
  82 typedef gint (*SendDataNotify)                  (Session        *session,
  83                                                  guint           len,
  84                                                  gpointer        user_data);
  85
  86 struct _Session
  87 {
  88         SessionType type;
  89
  90         SockInfo *sock;
  91
  92         gchar *server;
  93         gushort port;
  94
  95         gboolean nonblocking;
  96
  97         SessionState state;
  98
  99         time_t last_access_time;
 100         GTimeVal tv_prev;
 101
 102         gint conn_id;
 103
 104         gint io_tag;
 105
 106         gchar read_buf[SESSION_BUFFSIZE];
 107         gchar *read_buf_p;
 108         gint read_buf_len;
 109
 110         GString *read_msg_buf;
 111         GByteArray *read_data_buf;
 112         gchar *read_data_terminator;
 113
 114         /* buffer for short messages */
 115         gchar *write_buf;
 116         gchar *write_buf_p;
 117         gint write_buf_len;
 118
 119         /* buffer for large data */
 120         const guchar *write_data;
 121         const guchar *write_data_p;
 122         gint write_data_len;
 123
 124         guint timeout_tag;
 125         guint timeout_interval;
 126
 127         gpointer data;
 128
 129         /* virtual methods to parse server responses */
 130         gint (*recv_msg)                (Session        *session,
 131                                          const gchar    *msg);
 132
 133         gint (*send_data_finished)      (Session        *session,
 134                                          guint           len);
 135         gint (*recv_data_finished)      (Session        *session,
 136                                          guchar         *data,
 137                                          guint           len);
 138
 139         void (*destroy)                 (Session        *session);
 140
 141         /* notification functions */
 142         RecvMsgNotify                   recv_msg_notify;
 143         RecvDataProgressiveNotify       recv_data_progressive_notify;
 144         RecvDataNotify                  recv_data_notify;
 145         SendDataProgressiveNotify       send_data_progressive_notify;
 146         SendDataNotify                  send_data_notify;
 147
 148         gpointer recv_msg_notify_data;
 149         gpointer recv_data_progressive_notify_data;
 150         gpointer recv_data_notify_data;
 151         gpointer send_data_progressive_notify_data;
 152         gpointer send_data_notify_data;
 153
 154         const void *account;
 155         gboolean is_smtp;
 156
 157 #ifdef USE_GNUTLS
 158         SSLType ssl_type;
 159 #endif
 160 };
 161
 162 void session_init               (Session        *session,
 163                                  const void     *prefs_account,
 164                                  gboolean        is_smtp);
 165 gint session_connect            (Session        *session,
 166                                  const gchar    *server,
 167                                  gushort         port);
 168 gint session_disconnect         (Session        *session);
 169 void session_destroy            (Session        *session);
 170 gboolean session_is_connected   (Session        *session);
 171
 172 void session_set_access_time    (Session        *session);
 173
 174 void session_set_timeout        (Session        *session,
 175                                  guint           interval);
 176
 177 void session_set_recv_message_notify    (Session        *session,
 178                                          RecvMsgNotify   notify_func,
 179                                          gpointer        data);
 180 void session_set_recv_data_progressive_notify
 181                                         (Session        *session,
 182                                          RecvDataProgressiveNotify notify_func,
 183                                          gpointer        data);
 184 void session_set_recv_data_notify       (Session        *session,
 185                                          RecvDataNotify  notify_func,
 186                                          gpointer        data);
 187 void session_set_send_data_progressive_notify
 188                                         (Session        *session,
 189                                          SendDataProgressiveNotify notify_func,
 190                                          gpointer        data);
 191 void session_set_send_data_notify       (Session        *session,
 192                                          SendDataNotify  notify_func,
 193                                          gpointer        data);
 194
 195 #ifdef USE_GNUTLS
 196 gint session_start_tls  (Session        *session);
 197 #endif
 198
 199 gint session_send_msg   (Session        *session,
 200                          SessionMsgType  type,
 201                          const gchar    *msg);
 202 gint session_recv_msg   (Session        *session);
 203 gint session_send_data  (Session        *session,
 204                          const guchar   *data,
 205                          guint           size);
 206 gint session_recv_data  (Session        *session,
 207                          guint           size,
 208                          const gchar    *terminator);
 209
 210 #endif /* __SESSION_H__ */