path: root/mail/evolution-mbox-importer.c

/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/* evolution-mbox-importer.c
 *
 * Authors: Iain Holmes <iain@ximian.com>
 *
 * Copyright (C) 2001  Ximian, Inc.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public
 * License along with this program; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include "evolution-mbox-importer.h"

#include <stdio.h>

#include <importer/evolution-importer.h>
#include <importer/GNOME_Evolution_Importer.h>

#include "mail-importer.h"

#include <camel/camel-exception.h>

typedef struct {
    MailImporter importer; /* Parent */

    char *filename;
    FILE *handle;
    off_t size;
} MboxImporter;


/* EvolutionImporter methods */

static void
process_item_fn (EvolutionImporter *eimporter,
         CORBA_Object listener,
         void *closure,
         CORBA_Environment *ev)
{
    MboxImporter *mbi = (MboxImporter *) closure;
    MailImporter *importer = (MailImporter *) mbi;
    CamelException *ex;
    static char *line = NULL;

    if (line == NULL)
        line = g_new0 (char, 4096);

    if (line != NULL) { 
        /* We had a From line the last time
           so just add it and start again */
        mail_importer_add_line (importer, line, FALSE);
    }

    if (fgets (line, 4096, mbi->handle) == NULL) {
        if (*line != '\0')
            mail_importer_add_line (importer, line, TRUE); 
        /* Must be the end */

        g_free (line);
        line = NULL;
        GNOME_Evolution_ImporterListener_notifyResult (listener,
                                   GNOME_Evolution_ImporterListener_OK,
                                   FALSE, ev);
        
        ex = camel_exception_new ();
        camel_folder_thaw (importer->folder);
        importer->frozen = FALSE;
        camel_folder_sync (importer->folder, FALSE, ex);
        camel_exception_free (ex);
        fclose (mbi->handle);
        mbi->handle = NULL;
        return;
    }

    /* It's the From line, so add it and get a new line. */
    if (strncmp (line, "From ", 5) == 0) {
        mail_importer_add_line (importer, line, FALSE);
        
        if (fgets (line, 4096, mbi->handle) == NULL) {
            if (*line != '\0')
                mail_importer_add_line (importer, line, TRUE); 
            /* Must be the end */
            
            g_free (line);
            line = NULL;
            GNOME_Evolution_ImporterListener_notifyResult (listener,
                                       GNOME_Evolution_ImporterListener_OK,
                                       FALSE, ev);
            
            ex = camel_exception_new ();
            camel_folder_thaw (importer->folder);
            importer->frozen = FALSE;
            camel_folder_sync (importer->folder, FALSE, ex);
            camel_exception_free (ex);
            fclose (mbi->handle);
            mbi->handle = NULL;
            return;
        }
    }
    
    while (strncmp (line, "From ", 5) != 0) {
        mail_importer_add_line (importer, line, FALSE);

        if (fgets (line, 4096, mbi->handle) == NULL) {
            if (*line != '\0')
                mail_importer_add_line (importer, line, TRUE);

            g_free (line);
            line = NULL;
            GNOME_Evolution_ImporterListener_notifyResult (listener,
                                       GNOME_Evolution_ImporterListener_OK,
                                       FALSE, ev);
            ex = camel_exception_new ();
            camel_folder_thaw (importer->folder);
            importer->frozen = FALSE;
            camel_folder_sync (importer->folder, FALSE, ex);
            camel_exception_free (ex);
            fclose (mbi->handle);
            mbi->handle = NULL;
            return;
        }
    }   
    
    mail_importer_add_line (importer, "\0", TRUE);
    GNOME_Evolution_ImporterListener_notifyResult (listener, 
                               GNOME_Evolution_ImporterListener_OK,
                               TRUE, ev);
        
    return;
}

static gboolean
support_format_fn (EvolutionImporter *importer,
           const char *filename,
           void *closure)
{
    FILE *handle;
    char signature[5];
    
    handle = fopen (filename, "rb");
    if (handle == NULL)
        return FALSE; /* Can't open file: Can't support it :) */
    
    /* SIGNATURE */
    fread (&signature, 5, 1, handle); 
    if (strncmp (signature, "From ", 5) == 0) {
        fclose (handle);
        return TRUE;
    }

    fclose (handle);
    return FALSE; 
}

static void
importer_destroy_cb (GtkObject *object,
             MboxImporter *mbi)
{
    MailImporter *importer;

    importer = (MailImporter *) mbi;
    if (importer->frozen) 
        camel_folder_thaw (importer->folder);

    if (importer->folder)
        camel_object_unref (CAMEL_OBJECT (importer->folder));

    g_free (mbi->filename);
    if (mbi->handle)
        fclose (mbi->handle);

    g_free (mbi);
}

static gboolean
load_file_fn (EvolutionImporter *eimporter,
          const char *filename,
          void *closure)
{
    MboxImporter *mbi;
    MailImporter *importer;
    struct stat buf;

    mbi = (MboxImporter *) closure;
    importer = (MailImporter *) mbi;

    mbi->filename = g_strdup (filename);

    mbi->handle = fopen (filename, "rb");
    if (mbi->handle == NULL) {
        g_warning ("Cannot open file");
        return FALSE;
    }

    /* Get size of file */
    if (stat (filename, &buf) == -1) {
        g_warning ("Cannot stat file");
        return FALSE;
    }
    
    mbi->size = buf.st_size;

    importer->mstream = NULL;
    importer->folder = mail_importer_get_folder ("Inbox", NULL);

    if (importer->folder == NULL){
        g_print ("Bad folder\n");
        return FALSE;
    }

    camel_folder_freeze (importer->folder);
    importer->frozen = TRUE;
    return TRUE;
}

BonoboObject *
mbox_factory_fn (BonoboGenericFactory *_factory,
         void *closure)
{
    EvolutionImporter *importer;
    MboxImporter *mbox;
    
    mbox = g_new0 (MboxImporter, 1);
    importer = evolution_importer_new (support_format_fn, load_file_fn,
                       process_item_fn, NULL, mbox);
    gtk_signal_connect (GTK_OBJECT (importer), "destroy",
                GTK_SIGNAL_FUNC (importer_destroy_cb), mbox);
    
    return BONOBO_OBJECT (importer);
}