claws-mail/src/news.c
2003-03-20 11:00:55 +00:00

1089 lines
26 KiB
C

/*
* Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
* Copyright (C) 1999-2003 Hiroyuki Yamamoto
*
* 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 "defs.h"
#include <glib.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <dirent.h>
#include <unistd.h>
#include <time.h>
#include "intl.h"
#include "news.h"
#include "nntp.h"
#include "socket.h"
#include "recv.h"
#include "procmsg.h"
#include "procheader.h"
#include "folder.h"
#include "session.h"
#include "statusbar.h"
#include "codeconv.h"
#include "utils.h"
#include "prefs_common.h"
#include "prefs_account.h"
#include "inputdialog.h"
#include "log.h"
#include "progressindicator.h"
#if USE_OPENSSL
# include "ssl.h"
#endif
#define NNTP_PORT 119
#if USE_OPENSSL
#define NNTPS_PORT 563
#endif
static void news_folder_init (Folder *folder,
const gchar *name,
const gchar *path);
#if USE_OPENSSL
static Session *news_session_new (const gchar *server,
gushort port,
const gchar *userid,
const gchar *passwd,
SSLType ssl_type);
#else
static Session *news_session_new (const gchar *server,
gushort port,
const gchar *userid,
const gchar *passwd);
#endif
static gint news_get_article_cmd (NNTPSession *session,
const gchar *cmd,
gint num,
gchar *filename);
static gint news_get_article (NNTPSession *session,
gint num,
gchar *filename);
static gint news_select_group (NNTPSession *session,
const gchar *group,
gint *num,
gint *first,
gint *last);
static MsgInfo *news_parse_xover (const gchar *xover_str);
static gchar *news_parse_xhdr (const gchar *xhdr_str,
MsgInfo *msginfo);
static gint news_remove_msg (Folder *folder,
FolderItem *item,
gint num);
gint news_get_num_list (Folder *folder,
FolderItem *item,
GSList **list);
MsgInfo *news_get_msginfo (Folder *folder,
FolderItem *item,
gint num);
GSList *news_get_msginfos (Folder *folder,
FolderItem *item,
GSList *msgnum_list);
gint news_post_stream (Folder *folder,
FILE *fp);
FolderClass news_class =
{
F_NEWS,
"news",
"News",
/* Folder functions */
news_folder_new,
news_folder_destroy,
NULL,
NULL,
/* FolderItem functions */
NULL,
NULL,
NULL,
NULL,
NULL,
news_get_num_list,
NULL,
NULL,
NULL,
NULL,
/* Message functions */
news_get_msginfo,
news_get_msginfos,
news_fetch_msg,
NULL,
NULL,
NULL,
NULL,
NULL,
news_remove_msg,
NULL,
NULL,
NULL,
NULL,
};
FolderClass *news_get_class()
{
return &news_class;
}
Folder *news_folder_new(const gchar *name, const gchar *path)
{
Folder *folder;
folder = (Folder *)g_new0(NewsFolder, 1);
folder->class = &news_class;
news_folder_init(folder, name, path);
return folder;
}
void news_folder_destroy(Folder *folder)
{
gchar *dir;
dir = folder_get_path(folder);
if (is_dir_exist(dir))
remove_dir_recursive(dir);
g_free(dir);
folder_remote_folder_destroy(REMOTE_FOLDER(folder));
}
static void news_folder_init(Folder *folder, const gchar *name,
const gchar *path)
{
folder_remote_folder_init(folder, name, path);
}
#if USE_OPENSSL
static Session *news_session_new(const gchar *server, gushort port,
const gchar *userid, const gchar *passwd,
SSLType ssl_type)
#else
static Session *news_session_new(const gchar *server, gushort port,
const gchar *userid, const gchar *passwd)
#endif
{
gchar buf[NNTPBUFSIZE];
NNTPSession *session;
NNTPSockInfo *nntp_sock;
g_return_val_if_fail(server != NULL, NULL);
log_message(_("creating NNTP connection to %s:%d ...\n"), server, port);
#if USE_OPENSSL
if (userid && passwd)
nntp_sock = nntp_open_auth(server, port, buf, userid, passwd,
ssl_type);
else
nntp_sock = nntp_open(server, port, buf, ssl_type);
#else
if (userid && passwd)
nntp_sock = nntp_open_auth(server, port, buf, userid, passwd);
else
nntp_sock = nntp_open(server, port, buf);
#endif
if (nntp_sock == NULL)
return NULL;
session = g_new(NNTPSession, 1);
SESSION(session)->type = SESSION_NEWS;
SESSION(session)->server = g_strdup(server);
session->nntp_sock = nntp_sock;
SESSION(session)->sock = nntp_sock->sock;
SESSION(session)->last_access_time = time(NULL);
SESSION(session)->data = NULL;
SESSION(session)->destroy = news_session_destroy;
session->group = NULL;
return SESSION(session);
}
void news_session_destroy(Session *session)
{
nntp_close(NNTP_SESSION(session)->nntp_sock);
NNTP_SESSION(session)->nntp_sock = NULL;
session->sock = NULL;
g_free(NNTP_SESSION(session)->group);
}
static Session *news_session_new_for_folder(Folder *folder)
{
Session *session;
PrefsAccount *ac;
const gchar *userid = NULL;
gchar *passwd = NULL;
gushort port;
gchar buf[NNTPBUFSIZE];
g_return_val_if_fail(folder != NULL, NULL);
g_return_val_if_fail(folder->account != NULL, NULL);
ac = folder->account;
if (ac->use_nntp_auth && ac->userid && ac->userid[0]) {
userid = ac->userid;
if (ac->passwd && ac->passwd[0])
passwd = g_strdup(ac->passwd);
else
passwd = input_dialog_query_password(ac->nntp_server,
userid);
}
#if USE_OPENSSL
port = ac->set_nntpport ? ac->nntpport
: ac->ssl_nntp ? NNTPS_PORT : NNTP_PORT;
session = news_session_new(ac->nntp_server, port, userid, passwd,
ac->ssl_nntp);
#else
port = ac->set_nntpport ? ac->nntpport : NNTP_PORT;
session = news_session_new(ac->nntp_server, port, userid, passwd);
#endif
if ((session != NULL) && ac->use_nntp_auth && ac->use_nntp_auth_onconnect)
nntp_forceauth(NNTP_SESSION(session)->nntp_sock, buf, userid, passwd);
g_free(passwd);
return session;
}
NNTPSession *news_session_get(Folder *folder)
{
RemoteFolder *rfolder = REMOTE_FOLDER(folder);
g_return_val_if_fail(folder != NULL, NULL);
g_return_val_if_fail(FOLDER_CLASS(folder) == &news_class, NULL);
g_return_val_if_fail(folder->account != NULL, NULL);
if (!rfolder->session) {
rfolder->session = news_session_new_for_folder(folder);
return NNTP_SESSION(rfolder->session);
}
if (time(NULL) - rfolder->session->last_access_time < SESSION_TIMEOUT) {
rfolder->session->last_access_time = time(NULL);
return NNTP_SESSION(rfolder->session);
}
if (nntp_mode(NNTP_SESSION(rfolder->session)->nntp_sock, FALSE)
!= NN_SUCCESS) {
log_warning("NNTP connection to %s:%d has been"
" disconnected. Reconnecting...\n",
folder->account->nntp_server,
folder->account->set_nntpport ?
folder->account->nntpport : NNTP_PORT);
session_destroy(rfolder->session);
rfolder->session = news_session_new_for_folder(folder);
}
if (rfolder->session)
rfolder->session->last_access_time = time(NULL);
return NNTP_SESSION(rfolder->session);
}
gchar *news_fetch_msg(Folder *folder, FolderItem *item, gint num)
{
gchar *path, *filename;
NNTPSession *session;
gint ok;
g_return_val_if_fail(folder != NULL, NULL);
g_return_val_if_fail(item != NULL, NULL);
path = folder_item_get_path(item);
if (!is_dir_exist(path))
make_dir_hier(path);
filename = g_strconcat(path, G_DIR_SEPARATOR_S, itos(num), NULL);
g_free(path);
if (is_file_exist(filename)) {
debug_print("article %d has been already cached.\n", num);
return filename;
}
session = news_session_get(folder);
if (!session) {
g_free(filename);
return NULL;
}
ok = news_select_group(session, item->path, NULL, NULL, NULL);
if (ok != NN_SUCCESS) {
g_warning("can't select group %s\n", item->path);
g_free(filename);
return NULL;
}
debug_print("getting article %d...\n", num);
ok = news_get_article(NNTP_SESSION(REMOTE_FOLDER(folder)->session),
num, filename);
if (ok < 0) {
g_warning("can't read article %d\n", num);
session_destroy(SESSION(session));
REMOTE_FOLDER(folder)->session = NULL;
g_free(filename);
return NULL;
}
return filename;
}
gint news_scan_group(Folder *folder, FolderItem *item)
{
NNTPSession *session;
gint num = 0, first = 0, last = 0;
gint ok;
g_return_val_if_fail(folder != NULL, -1);
g_return_val_if_fail(item != NULL, -1);
session = news_session_get(folder);
if (!session) return -1;
ok = news_select_group(session, item->path, &num, &first, &last);
if (ok != NN_SUCCESS) {
log_warning("can't set group: %s\n", item->path);
return -1;
}
if (num == 0) {
item->new = item->unread = item->total = item->last_num = 0;
return 0;
}
/*
path = folder_item_get_path(item);
if (path && is_dir_exist(path)) {
procmsg_get_mark_sum(path, &new, &unread, &total, &min, &max,
first);
}
g_free(path);
if (max < first || last < min)
new = unread = total = num;
else {
if (min < first)
min = first;
if (last < max)
max = last;
else if (max < last) {
new += last - max;
unread += last - max;
}
if (new > num) new = num;
if (unread > num) unread = num;
}
item->new = new;
item->unread = unread;
item->total = num;
item->last_num = last;
*/
return 0;
}
static NewsGroupInfo *news_group_info_new(const gchar *name,
gint first, gint last, gchar type)
{
NewsGroupInfo *ginfo;
ginfo = g_new(NewsGroupInfo, 1);
ginfo->name = g_strdup(name);
ginfo->first = first;
ginfo->last = last;
ginfo->type = type;
return ginfo;
}
static void news_group_info_free(NewsGroupInfo *ginfo)
{
g_free(ginfo->name);
g_free(ginfo);
}
static gint news_group_info_compare(NewsGroupInfo *ginfo1,
NewsGroupInfo *ginfo2)
{
return g_strcasecmp(ginfo1->name, ginfo2->name);
}
GSList *news_get_group_list(Folder *folder)
{
gchar *path, *filename;
FILE *fp;
GSList *list = NULL;
GSList *last = NULL;
gchar buf[NNTPBUFSIZE];
g_return_val_if_fail(folder != NULL, NULL);
g_return_val_if_fail(FOLDER_CLASS(folder) == &news_class, NULL);
path = folder_item_get_path(FOLDER_ITEM(folder->node->data));
if (!is_dir_exist(path))
make_dir_hier(path);
filename = g_strconcat(path, G_DIR_SEPARATOR_S, NEWSGROUP_LIST, NULL);
g_free(path);
if ((fp = fopen(filename, "rb")) == NULL) {
NNTPSession *session;
session = news_session_get(folder);
if (!session) {
g_free(filename);
return NULL;
}
if (nntp_list(session->nntp_sock) != NN_SUCCESS) {
g_free(filename);
return NULL;
}
if (recv_write_to_file(SESSION(session)->sock, filename) < 0) {
log_warning("can't retrieve newsgroup list\n");
session_destroy(SESSION(session));
REMOTE_FOLDER(folder)->session = NULL;
g_free(filename);
return NULL;
}
if ((fp = fopen(filename, "rb")) == NULL) {
FILE_OP_ERROR(filename, "fopen");
g_free(filename);
return NULL;
}
}
while (fgets(buf, sizeof(buf), fp) != NULL) {
gchar *p = buf;
gchar *name;
gint last_num;
gint first_num;
gchar type;
NewsGroupInfo *ginfo;
p = strchr(p, ' ');
if (!p) continue;
*p = '\0';
p++;
name = buf;
if (sscanf(p, "%d %d %c", &last_num, &first_num, &type) < 3)
continue;
ginfo = news_group_info_new(name, first_num, last_num, type);
if (!last)
last = list = g_slist_append(NULL, ginfo);
else {
last = g_slist_append(last, ginfo);
last = last->next;
}
}
fclose(fp);
g_free(filename);
list = g_slist_sort(list, (GCompareFunc)news_group_info_compare);
return list;
}
void news_group_list_free(GSList *group_list)
{
GSList *cur;
if (!group_list) return;
for (cur = group_list; cur != NULL; cur = cur->next)
news_group_info_free((NewsGroupInfo *)cur->data);
g_slist_free(group_list);
}
void news_remove_group_list_cache(Folder *folder)
{
gchar *path, *filename;
g_return_if_fail(folder != NULL);
g_return_if_fail(FOLDER_CLASS(folder) == &news_class);
path = folder_item_get_path(FOLDER_ITEM(folder->node->data));
filename = g_strconcat(path, G_DIR_SEPARATOR_S, NEWSGROUP_LIST, NULL);
g_free(path);
if (is_file_exist(filename)) {
if (remove(filename) < 0)
FILE_OP_ERROR(filename, "remove");
}
g_free(filename);
}
gint news_post(Folder *folder, const gchar *file)
{
FILE *fp;
gint ok;
g_return_val_if_fail(folder != NULL, -1);
g_return_val_if_fail(FOLDER_CLASS(folder) == &news_class, -1);
g_return_val_if_fail(file != NULL, -1);
if ((fp = fopen(file, "rb")) == NULL) {
FILE_OP_ERROR(file, "fopen");
return -1;
}
ok = news_post_stream(folder, fp);
fclose(fp);
return ok;
}
gint news_post_stream(Folder *folder, FILE *fp)
{
NNTPSession *session;
gint ok;
g_return_val_if_fail(folder != NULL, -1);
g_return_val_if_fail(FOLDER_CLASS(folder) == &news_class, -1);
g_return_val_if_fail(fp != NULL, -1);
session = news_session_get(folder);
if (!session) return -1;
ok = nntp_post(session->nntp_sock, fp);
if (ok != NN_SUCCESS) {
log_warning("can't post article.\n");
return -1;
}
return 0;
}
static gint news_get_article_cmd(NNTPSession *session, const gchar *cmd,
gint num, gchar *filename)
{
gchar *msgid;
if (nntp_get_article(session->nntp_sock, cmd, num, &msgid)
!= NN_SUCCESS)
return -1;
debug_print("Message-Id = %s, num = %d\n", msgid, num);
g_free(msgid);
if (recv_write_to_file(session->nntp_sock->sock, filename) < 0) {
log_warning("can't retrieve article %d\n", num);
return -1;
}
return 0;
}
static gint news_remove_msg(Folder *folder, FolderItem *item, gint num)
{
gchar * dir;
gint r;
dir = folder_item_get_path(item);
debug_print("news_remove_msg: removing msg %d in %s\n",num,dir);
r = remove_numbered_files(dir, num, num);
g_free(dir);
return r;
}
static gint news_get_article(NNTPSession *session, gint num, gchar *filename)
{
return news_get_article_cmd(session, "ARTICLE", num, filename);
}
/**
* news_select_group:
* @session: Active NNTP session.
* @group: Newsgroup name.
* @num: Estimated number of articles.
* @first: First article number.
* @last: Last article number.
*
* Select newsgroup @group with the GROUP command if it is not already
* selected in @session, or article numbers need to be returned.
*
* Return value: NNTP result code.
**/
static gint news_select_group(NNTPSession *session, const gchar *group,
gint *num, gint *first, gint *last)
{
gint ok;
gint num_, first_, last_;
if (!num || !first || !last) {
if (session->group && g_strcasecmp(session->group, group) == 0)
return NN_SUCCESS;
num = &num_;
first = &first_;
last = &last_;
}
g_free(session->group);
session->group = NULL;
ok = nntp_group(session->nntp_sock, group, num, first, last);
if (ok == NN_SUCCESS)
session->group = g_strdup(group);
return ok;
}
#define PARSE_ONE_PARAM(p, srcp) \
{ \
p = strchr(srcp, '\t'); \
if (!p) return NULL; \
else \
*p++ = '\0'; \
}
static MsgInfo *news_parse_xover(const gchar *xover_str)
{
MsgInfo *msginfo;
gchar buf[NNTPBUFSIZE];
gchar *subject, *sender, *size, *line, *date, *msgid, *ref, *tmp, *xref;
gchar *p;
gint num, size_int, line_int;
gchar *xover_buf;
Xstrdup_a(xover_buf, xover_str, return NULL);
PARSE_ONE_PARAM(subject, xover_buf);
PARSE_ONE_PARAM(sender, subject);
PARSE_ONE_PARAM(date, sender);
PARSE_ONE_PARAM(msgid, date);
PARSE_ONE_PARAM(ref, msgid);
PARSE_ONE_PARAM(size, ref);
PARSE_ONE_PARAM(line, size);
PARSE_ONE_PARAM(xref, line);
tmp = strchr(xref, '\t');
if (!tmp) tmp = strchr(line, '\r');
if (!tmp) tmp = strchr(line, '\n');
if (tmp) *tmp = '\0';
num = atoi(xover_str);
size_int = atoi(size);
line_int = atoi(line);
/* set MsgInfo */
msginfo = procmsg_msginfo_new();
msginfo->msgnum = num;
msginfo->size = size_int;
msginfo->date = g_strdup(date);
msginfo->date_t = procheader_date_parse(NULL, date, 0);
conv_unmime_header(buf, sizeof(buf), sender, NULL);
msginfo->from = g_strdup(buf);
msginfo->fromname = procheader_get_fromname(buf);
conv_unmime_header(buf, sizeof(buf), subject, NULL);
msginfo->subject = g_strdup(buf);
extract_parenthesis(msgid, '<', '>');
remove_space(msgid);
if (*msgid != '\0')
msginfo->msgid = g_strdup(msgid);
msginfo->references = g_strdup(ref);
eliminate_parenthesis(ref, '(', ')');
if ((p = strrchr(ref, '<')) != NULL) {
extract_parenthesis(p, '<', '>');
remove_space(p);
if (*p != '\0')
msginfo->inreplyto = g_strdup(p);
}
msginfo->xref = g_strdup(xref);
p = msginfo->xref+strlen(msginfo->xref) - 1;
while (*p == '\r' || *p == '\n') {
*p = '\0';
p--;
}
return msginfo;
}
static gchar *news_parse_xhdr(const gchar *xhdr_str, MsgInfo *msginfo)
{
gchar *p;
gchar *tmp;
gint num;
p = strchr(xhdr_str, ' ');
if (!p)
return NULL;
else
p++;
num = atoi(xhdr_str);
if (msginfo->msgnum != num) return NULL;
tmp = strchr(p, '\r');
if (!tmp) tmp = strchr(p, '\n');
if (tmp)
return g_strndup(p, tmp - p);
else
return g_strdup(p);
}
gint news_cancel_article(Folder * folder, MsgInfo * msginfo)
{
gchar * tmp;
FILE * tmpfp;
gchar buf[BUFFSIZE];
tmp = g_strdup_printf("%s%ctmp%d", g_get_tmp_dir(),
G_DIR_SEPARATOR, (gint)msginfo);
if (tmp == NULL)
return -1;
if ((tmpfp = fopen(tmp, "wb")) == NULL) {
FILE_OP_ERROR(tmp, "fopen");
return -1;
}
if (change_file_mode_rw(tmpfp, tmp) < 0) {
FILE_OP_ERROR(tmp, "chmod");
g_warning("can't change file mode\n");
}
fprintf(tmpfp, "From: %s\r\n", msginfo->from);
fprintf(tmpfp, "Newsgroups: %s\r\n", msginfo->newsgroups);
fprintf(tmpfp, "Subject: cmsg cancel <%s>\r\n", msginfo->msgid);
fprintf(tmpfp, "Control: cancel <%s>\r\n", msginfo->msgid);
fprintf(tmpfp, "Approved: %s\r\n", msginfo->from);
fprintf(tmpfp, "X-Cancelled-by: %s\r\n", msginfo->from);
get_rfc822_date(buf, sizeof(buf));
fprintf(tmpfp, "Date: %s\r\n", buf);
fprintf(tmpfp, "\r\n");
fprintf(tmpfp, "removed with sylpheed\r\n");
fclose(tmpfp);
news_post(folder, tmp);
remove(tmp);
g_free(tmp);
return 0;
}
gint news_get_num_list(Folder *folder, FolderItem *item, GSList **msgnum_list)
{
NNTPSession *session;
gint i, ok, num, first, last, nummsgs = 0;
gchar *dir;
g_return_val_if_fail(item != NULL, -1);
g_return_val_if_fail(item->folder != NULL, -1);
g_return_val_if_fail(FOLDER_CLASS(folder) == &news_class, -1);
session = news_session_get(folder);
g_return_val_if_fail(session != NULL, -1);
ok = news_select_group(session, item->path, &num, &first, &last);
if (ok != NN_SUCCESS) {
log_warning(_("can't set group: %s\n"), item->path);
return -1;
}
if(last < first) {
log_warning(_("invalid article range: %d - %d\n"),
first, last);
return 0;
}
for(i = first; i <= last; i++) {
*msgnum_list = g_slist_prepend(*msgnum_list, GINT_TO_POINTER(i));
nummsgs++;
}
dir = folder_item_get_path(item);
debug_print("removing old messages from %d to %d in %s\n", first, last, dir);
remove_numbered_files(dir, 1, first - 1);
g_free(dir);
return nummsgs;
}
#define READ_TO_LISTEND(hdr) \
while (!(buf[0] == '.' && buf[1] == '\r')) { \
if (sock_gets(SESSION(session)->sock, buf, sizeof(buf)) < 0) { \
log_warning(_("error occurred while getting %s.\n"), hdr); \
return msginfo; \
} \
}
MsgInfo *news_get_msginfo(Folder *folder, FolderItem *item, gint num)
{
NNTPSession *session;
MsgInfo *msginfo = NULL;
gchar buf[NNTPBUFSIZE];
session = news_session_get(folder);
g_return_val_if_fail(session != NULL, NULL);
g_return_val_if_fail(item != NULL, NULL);
g_return_val_if_fail(item->folder != NULL, NULL);
g_return_val_if_fail(FOLDER_CLASS(item->folder) == &news_class, NULL);
log_message(_("getting xover %d in %s...\n"),
num, item->path);
if (nntp_xover(session->nntp_sock, num, num) != NN_SUCCESS) {
log_warning(_("can't get xover\n"));
return NULL;
}
if (sock_gets(SESSION(session)->sock, buf, sizeof(buf)) < 0) {
log_warning(_("error occurred while getting xover.\n"));
return NULL;
}
msginfo = news_parse_xover(buf);
if (!msginfo) {
log_warning(_("invalid xover line: %s\n"), buf);
}
READ_TO_LISTEND("xover");
if(!msginfo)
return NULL;
msginfo->folder = item;
msginfo->flags.perm_flags = MSG_NEW|MSG_UNREAD;
msginfo->flags.tmp_flags = MSG_NEWS;
msginfo->newsgroups = g_strdup(item->path);
if (nntp_xhdr(session->nntp_sock, "to", num, num) != NN_SUCCESS) {
log_warning(_("can't get xhdr\n"));
return msginfo;
}
if (sock_gets(SESSION(session)->sock, buf, sizeof(buf)) < 0) {
log_warning(_("error occurred while getting xhdr.\n"));
return msginfo;
}
msginfo->to = news_parse_xhdr(buf, msginfo);
READ_TO_LISTEND("xhdr (to)");
if (nntp_xhdr(session->nntp_sock, "cc", num, num) != NN_SUCCESS) {
log_warning(_("can't get xhdr\n"));
return msginfo;
}
if (sock_gets(SESSION(session)->sock, buf, sizeof(buf)) < 0) {
log_warning(_("error occurred while getting xhdr.\n"));
return msginfo;
}
msginfo->cc = news_parse_xhdr(buf, msginfo);
READ_TO_LISTEND("xhdr (cc)");
return msginfo;
}
static GSList *news_get_msginfos_for_range(NNTPSession *session, FolderItem *item, guint begin, guint end)
{
gchar buf[NNTPBUFSIZE];
GSList *newlist = NULL;
GSList *llast = NULL;
MsgInfo *msginfo;
guint count = 0, lines = (end - begin + 2) * 3;
g_return_val_if_fail(session != NULL, NULL);
g_return_val_if_fail(item != NULL, NULL);
log_message(_("getting xover %d - %d in %s...\n"),
begin, end, item->path);
if (nntp_xover(session->nntp_sock, begin, end) != NN_SUCCESS) {
log_warning(_("can't get xover\n"));
return NULL;
}
for (;;) {
if (sock_gets(SESSION(session)->sock, buf, sizeof(buf)) < 0) {
log_warning(_("error occurred while getting xover.\n"));
return newlist;
}
count++;
progressindicator_set_percentage
(PROGRESS_TYPE_NETWORK,
session->fetch_base_percentage +
(((gfloat) count) / ((gfloat) lines)) * session->fetch_total_percentage);
if (buf[0] == '.' && buf[1] == '\r') break;
msginfo = news_parse_xover(buf);
if (!msginfo) {
log_warning(_("invalid xover line: %s\n"), buf);
continue;
}
msginfo->folder = item;
msginfo->flags.perm_flags = MSG_NEW|MSG_UNREAD;
msginfo->flags.tmp_flags = MSG_NEWS;
msginfo->newsgroups = g_strdup(item->path);
if (!newlist)
llast = newlist = g_slist_append(newlist, msginfo);
else {
llast = g_slist_append(llast, msginfo);
llast = llast->next;
}
}
if (nntp_xhdr(session->nntp_sock, "to", begin, end) != NN_SUCCESS) {
log_warning(_("can't get xhdr\n"));
return newlist;
}
llast = newlist;
for (;;) {
if (sock_gets(SESSION(session)->sock, buf, sizeof(buf)) < 0) {
log_warning(_("error occurred while getting xhdr.\n"));
return newlist;
}
count++;
progressindicator_set_percentage
(PROGRESS_TYPE_NETWORK,
session->fetch_base_percentage +
(((gfloat) count) / ((gfloat) lines)) * session->fetch_total_percentage);
if (buf[0] == '.' && buf[1] == '\r') break;
if (!llast) {
g_warning("llast == NULL\n");
continue;
}
msginfo = (MsgInfo *)llast->data;
msginfo->to = news_parse_xhdr(buf, msginfo);
llast = llast->next;
}
if (nntp_xhdr(session->nntp_sock, "cc", begin, end) != NN_SUCCESS) {
log_warning(_("can't get xhdr\n"));
return newlist;
}
llast = newlist;
for (;;) {
if (sock_gets(SESSION(session)->sock, buf, sizeof(buf)) < 0) {
log_warning(_("error occurred while getting xhdr.\n"));
return newlist;
}
count++;
progressindicator_set_percentage
(PROGRESS_TYPE_NETWORK,
session->fetch_base_percentage +
(((gfloat) count) / ((gfloat) lines)) * session->fetch_total_percentage);
if (buf[0] == '.' && buf[1] == '\r') break;
if (!llast) {
g_warning("llast == NULL\n");
continue;
}
msginfo = (MsgInfo *)llast->data;
msginfo->cc = news_parse_xhdr(buf, msginfo);
llast = llast->next;
}
return newlist;
}
gint news_fetch_msgnum_sort(gconstpointer a, gconstpointer b)
{
return (GPOINTER_TO_INT(a) - GPOINTER_TO_INT(b));
}
GSList *news_get_msginfos(Folder *folder, FolderItem *item, GSList *msgnum_list)
{
NNTPSession *session;
GSList *elem, *msginfo_list = NULL, *tmp_msgnum_list, *tmp_msginfo_list;
guint first, last, next;
guint tofetch, fetched;
g_return_val_if_fail(folder != NULL, NULL);
g_return_val_if_fail(FOLDER_CLASS(folder) == &news_class, NULL);
g_return_val_if_fail(msgnum_list != NULL, NULL);
g_return_val_if_fail(item != NULL, NULL);
session = news_session_get(folder);
g_return_val_if_fail(session != NULL, NULL);
tmp_msgnum_list = g_slist_copy(msgnum_list);
tmp_msgnum_list = g_slist_sort(tmp_msgnum_list, news_fetch_msgnum_sort);
progressindicator_start(PROGRESS_TYPE_NETWORK);
tofetch = g_slist_length(tmp_msgnum_list);
fetched = 0;
first = GPOINTER_TO_INT(tmp_msgnum_list->data);
last = first;
for(elem = g_slist_next(tmp_msgnum_list); elem != NULL; elem = g_slist_next(elem)) {
next = GPOINTER_TO_INT(elem->data);
if(next != (last + 1)) {
session->fetch_base_percentage = ((gfloat) fetched) / ((gfloat) tofetch);
session->fetch_total_percentage = ((gfloat) (last - first + 1)) / ((gfloat) tofetch);
tmp_msginfo_list = news_get_msginfos_for_range(session, item, first, last);
msginfo_list = g_slist_concat(msginfo_list, tmp_msginfo_list);
fetched = last - first + 1;
first = next;
}
last = next;
}
session->fetch_base_percentage = ((gfloat) fetched) / ((gfloat) tofetch);
session->fetch_total_percentage = ((gfloat) (last - first + 1)) / ((gfloat) tofetch);
tmp_msginfo_list = news_get_msginfos_for_range(session, item, first, last);
msginfo_list = g_slist_concat(msginfo_list, tmp_msginfo_list);
g_slist_free(tmp_msgnum_list);
progressindicator_stop(PROGRESS_TYPE_NETWORK);
return msginfo_list;
}