/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/* camel-nntp-folder.c : Abstract class for an email folder */
/*
* Author : Chris Toshok <toshok@helixcode.com>
*
* Copyright (C) 2000 Helix Code .
*
* 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
*/
#include <config.h>
#include <stdlib.h>
#include <sys/types.h>
#include <dirent.h>
#include <sys/stat.h>
#include <unistd.h>
#include <errno.h>
#include <string.h>
#include <fcntl.h>
#include "camel-folder-summary.h"
#include "camel-nntp-store.h"
#include "camel-nntp-folder.h"
#include "camel-nntp-store.h"
#include "camel-nntp-utils.h"
#include "string-utils.h"
#include "camel-stream-mem.h"
#include "camel-stream-buffer.h"
#include "camel-data-wrapper.h"
#include "camel-mime-message.h"
#include "camel-folder-summary.h"
#include "camel-exception.h"
static CamelFolderClass *parent_class=NULL;
/* Returns the class for a CamelNNTPFolder */
#define CNNTPF_CLASS(so) CAMEL_NNTP_FOLDER_CLASS (GTK_OBJECT(so)->klass)
#define CF_CLASS(so) CAMEL_FOLDER_CLASS (GTK_OBJECT(so)->klass)
#define CNNTPS_CLASS(so) CAMEL_STORE_CLASS (GTK_OBJECT(so)->klass)
static void
nntp_folder_init (CamelFolder *folder, CamelStore *parent_store,
CamelFolder *parent_folder, const gchar *name,
gchar *separator, gboolean path_begins_with_sep,
CamelException *ex)
{
const gchar *root_dir_path;
CamelNNTPFolder *nntp_folder = CAMEL_NNTP_FOLDER (folder);
/* call parent method */
parent_class->init (folder, parent_store, parent_folder,
name, separator, path_begins_with_sep,
ex);
if (camel_exception_get_id (ex)) return;
/* set flags */
if (!strcmp (name, "/")) {
/* the root folder is the only folder that has "subfolders" */
folder->can_hold_folders = TRUE;
folder->can_hold_messages = FALSE;
}
else {
folder->can_hold_folders = FALSE;
folder->can_hold_messages = TRUE;
folder->has_summary_capability = TRUE;
}
/* XX */
nntp_folder->group_name = g_strdup (strrchr (name, '/') + 1);
#if 0
/* get (or create) uid list */
if (!(nntp_load_uid_list (nntp_folder) > 0))
nntp_generate_uid_list (nntp_folder);
#endif
root_dir_path = camel_nntp_store_get_toplevel_dir (CAMEL_NNTP_STORE(folder->parent_store));
/* load the summary if we have that ability */
if (folder->has_summary_capability) {
nntp_folder->summary_file_path = g_strdup_printf ("%s/%s-ev-summary",
root_dir_path,
nntp_folder->group_name);
nntp_folder->summary = camel_folder_summary_new ();
camel_folder_summary_set_filename (nntp_folder->summary,
nntp_folder->summary_file_path);
if (-1 == camel_folder_summary_load (nntp_folder->summary)) {
/* Bad or nonexistant summary file */
camel_nntp_get_headers (CAMEL_FOLDER( folder )->parent_store,
nntp_folder, ex);
if (camel_exception_get_id (ex))
return;
/* XXX check return value */
camel_folder_summary_save (nntp_folder->summary);
}
}
}
static void
nntp_folder_sync (CamelFolder *folder, gboolean expunge,
CamelException *ex)
{
camel_folder_summary_save (CAMEL_NNTP_FOLDER(folder)->summary);
/* XXX
loop through the messages in the summary and store out the .newsrc,
using something similar to this bit snipped from _set_message_flags:
if (set & CAMEL_MESSAGE_SEEN) {
CamelNNTPStore *store;
CamelException *ex;
ex = camel_exception_new ();
store = CAMEL_NNTP_STORE (camel_folder_get_parent_store (folder, ex));
camel_exception_free (ex);
camel_nntp_newsrc_mark_article_read (store->newsrc,
nntp_folder->group_name,
XXX);
}
*/
}
static const gchar *
nntp_folder_get_name (CamelFolder *folder)
{
g_assert(0);
return NULL;
}
static const gchar *
nntp_folder_get_full_name (CamelFolder *folder)
{
g_assert(0);
return NULL;
}
static CamelFolder*
nntp_folder_get_subfolder (CamelFolder *folder,
const gchar *folder_name,
gboolean create,
CamelException *ex)
{
g_assert (0);
return NULL;
}
static gint
nntp_folder_get_message_count (CamelFolder *folder, CamelException *ex)
{
CamelNNTPFolder *nntp_folder = CAMEL_NNTP_FOLDER(folder);
g_assert (folder);
g_assert (nntp_folder->summary);
return camel_folder_summary_count(nntp_folder->summary);
}
static guint32
nntp_folder_get_message_flags (CamelFolder *folder, const char *uid, CamelException *ex)
{
CamelNNTPFolder *nntp_folder = CAMEL_NNTP_FOLDER (folder);
CamelMessageInfo *info = camel_folder_summary_uid (nntp_folder->summary, uid);
return info->flags;
}
static void
nntp_folder_set_message_flags (CamelFolder *folder, const char *uid,
guint32 flags, guint32 set, CamelException *ex)
{
CamelNNTPFolder *nntp_folder = CAMEL_NNTP_FOLDER (folder);
CamelMessageInfo *info = camel_folder_summary_uid (nntp_folder->summary, uid);
info->flags = set;
camel_folder_summary_touch (nntp_folder->summary);
}
static const gchar*
nntp_folder_get_message_uid (CamelFolder *folder,
CamelMimeMessage *message,
CamelException *ex)
{
g_assert (0);
return NULL;
}
static CamelMimeMessage *
nntp_folder_get_message (CamelFolder *folder, const gchar *uid, CamelException *ex)
{
CamelStream *nntp_istream;
CamelStream *message_stream;
CamelMimeMessage *message = NULL;
CamelStore *parent_store;
char *buf;
int buf_len;
int buf_alloc;
int status;
gboolean done;
/* get the parent store */
parent_store = camel_folder_get_parent_store (folder, ex);
if (camel_exception_get_id (ex)) {
return NULL;
}
status = camel_nntp_command (CAMEL_NNTP_STORE( parent_store ), NULL, "ARTICLE %s", uid);
nntp_istream = CAMEL_NNTP_STORE (parent_store)->istream;
/* if the uid was not found, raise an exception and return */
if (status != CAMEL_NNTP_OK) {
camel_exception_setv (ex,
CAMEL_EXCEPTION_FOLDER_INVALID_UID,
"message %s not found.",
uid);
return NULL;
}
/* XXX ick ick ick. read the entire message into a buffer and
then create a stream_mem for it. */
buf_alloc = 2048;
buf_len = 0;
buf = g_malloc(buf_alloc);
done = FALSE;
buf[0] = 0;
while (!done) {
char *line = camel_stream_buffer_read_line ( CAMEL_STREAM_BUFFER ( nntp_istream ));
int line_length;
/* XXX check exception */
line_length = strlen ( line );
if (!strcmp(line, ".")) {
done = TRUE;
g_free (line);
}
else {
if (buf_len + line_length > buf_alloc) {
buf_alloc *= 2;
buf = g_realloc (buf, buf_alloc);
}
strcat(buf, line);
strcat(buf, "\n");
buf_len += strlen(line) + 1;
g_free (line);
}
}
/* create a stream bound to the message */
message_stream = camel_stream_mem_new_with_buffer(buf, buf_len);
message = camel_mime_message_new ();
if (camel_data_wrapper_construct_from_stream ((CamelDataWrapper *)message, message_stream) == -1) {
gtk_object_unref (GTK_OBJECT (message));
gtk_object_unref (GTK_OBJECT (message_stream));
camel_exception_setv (ex,
CAMEL_EXCEPTION_FOLDER_INVALID_UID, /* XXX */
"Could not create message for uid %s.", uid);
return NULL;
}
gtk_object_unref (GTK_OBJECT (message_stream));
/* init other fields? */
gtk_object_ref (GTK_OBJECT (folder));
#if 0
gtk_signal_connect (GTK_OBJECT (message), "message_changed", message_changed, folder);
#endif
return message;
}
static void
nntp_folder_delete_message (CamelFolder *folder,
const gchar *uid,
CamelException *ex)
{
g_assert (0);
}
static GPtrArray *
nntp_folder_get_uids (CamelFolder *folder,
CamelException *ex)
{
CamelNNTPFolder *nntp_folder = CAMEL_NNTP_FOLDER (folder);
GPtrArray *infoarray, *out;
CamelMessageInfo *message_info;
int i;
infoarray = nntp_folder->summary->messages;
out = g_ptr_array_new ();
g_ptr_array_set_size (out, infoarray->len);
for (i=0; i<infoarray->len; i++) {
message_info = (CamelMessageInfo *) g_ptr_array_index (infoarray, i);
out->pdata[i] = g_strdup (message_info->uid);
}
return out;
}
static GPtrArray *
nntp_folder_get_summary (CamelFolder *folder,
CamelException *ex)
{
CamelNNTPFolder *nntp_folder = CAMEL_NNTP_FOLDER (folder);
return nntp_folder->summary->messages;
}
static GPtrArray *
nntp_folder_get_subfolder_names (CamelFolder *folder, CamelException *ex)
{
if (!strcmp (folder->name, "/")) {
CamelStore *store = camel_folder_get_parent_store (folder, ex);
GPtrArray *array = camel_nntp_newsrc_get_subscribed_group_names (CAMEL_NNTP_STORE (store)->newsrc);
return array;
}
else {
return NULL;
}
}
static void
nntp_folder_free_subfolder_names (CamelFolder *folder, GPtrArray *subfolders)
{
if (subfolders) {
CamelException *ex = camel_exception_new ();
CamelStore *store = camel_folder_get_parent_store (folder, ex);
camel_nntp_newsrc_free_group_names (CAMEL_NNTP_STORE (store)->newsrc, subfolders);
camel_exception_free (ex);
}
}
static GPtrArray*
nntp_folder_search_by_expression (CamelFolder *folder, const char *expression, CamelException *ex)
{
g_assert (0);
return NULL;
}
static const CamelMessageInfo*
nntp_folder_get_message_info (CamelFolder *folder, const char *uid)
{
CamelNNTPFolder *nntp_folder = CAMEL_NNTP_FOLDER (folder);
CamelMessageInfo *info = NULL;
int i;
for (i = 0; i < nntp_folder->summary->messages->len; i++) {
info = g_ptr_array_index (nntp_folder->summary->messages, i);
if (!strcmp (info->uid, uid))
return info;
}
return NULL;
}
static void
nntp_folder_finalize (GtkObject *object)
{
CamelNNTPFolder *nntp_folder = CAMEL_NNTP_FOLDER (object);
g_free (nntp_folder->summary_file_path);
GTK_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
camel_nntp_folder_class_init (CamelNNTPFolderClass *camel_nntp_folder_class)
{
CamelFolderClass *camel_folder_class = CAMEL_FOLDER_CLASS (camel_nntp_folder_class);
GtkObjectClass *gtk_object_class = GTK_OBJECT_CLASS (camel_folder_class);
parent_class = gtk_type_class (camel_folder_get_type ());
/* virtual method definition */
/* virtual method overload */
camel_folder_class->init = nntp_folder_init;
camel_folder_class->sync = nntp_folder_sync;
camel_folder_class->get_name = nntp_folder_get_name;
camel_folder_class->get_full_name = nntp_folder_get_full_name;
camel_folder_class->get_subfolder = nntp_folder_get_subfolder;
camel_folder_class->get_message_count = nntp_folder_get_message_count;
camel_folder_class->set_message_flags = nntp_folder_set_message_flags;
camel_folder_class->get_message_flags = nntp_folder_get_message_flags;
camel_folder_class->get_message_uid = nntp_folder_get_message_uid;
camel_folder_class->get_message = nntp_folder_get_message;
camel_folder_class->delete_message = nntp_folder_delete_message;
camel_folder_class->get_uids = nntp_folder_get_uids;
camel_folder_class->free_uids = camel_folder_free_deep;
camel_folder_class->get_summary = nntp_folder_get_summary;
camel_folder_class->free_summary = camel_folder_free_nop;
camel_folder_class->get_subfolder_names = nntp_folder_get_subfolder_names;
camel_folder_class->free_subfolder_names = nntp_folder_free_subfolder_names;
camel_folder_class->search_by_expression = nntp_folder_search_by_expression;
camel_folder_class->get_message_info = nntp_folder_get_message_info;
gtk_object_class->finalize = nntp_folder_finalize;
}
GtkType
camel_nntp_folder_get_type (void)
{
static GtkType camel_nntp_folder_type = 0;
if (!camel_nntp_folder_type) {
GtkTypeInfo camel_nntp_folder_info =
{
"CamelNNTPFolder",
sizeof (CamelNNTPFolder),
sizeof (CamelNNTPFolderClass),
(GtkClassInitFunc) camel_nntp_folder_class_init,
(GtkObjectInitFunc) NULL,
/* reserved_1 */ NULL,
/* reserved_2 */ NULL,
(GtkClassInitFunc) NULL,
};
camel_nntp_folder_type = gtk_type_unique (CAMEL_FOLDER_TYPE, &camel_nntp_folder_info);
}
return camel_nntp_folder_type;
}
