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/*
* LibSylph -- E-Mail client library
* Copyright (C) 1999-2014 Hiroyuki Yamamoto
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "defs.h"
#include <glib.h>
#include <glib/gi18n.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include "recv.h"
#include "socket.h"
#include "utils.h"
static RecvUIFunc recv_ui_func;
static gpointer recv_ui_func_data;
gchar *recv_bytes(SockInfo *sock, glong size)
{
gchar *buf;
glong count = 0;
if (size == 0)
return NULL;
buf = g_malloc(size + 1);
do {
gint read_count;
read_count = sock_read(sock, buf + count,
MIN(BUFFSIZE, size - count));
if (read_count <= 0) {
g_free(buf);
return NULL;
}
count += read_count;
} while (count < size);
buf[size] = '\0';
return buf;
}
gint recv_write_to_file(SockInfo *sock, const gchar *filename)
{
FILE *fp;
gint ret;
g_return_val_if_fail(filename != NULL, -1);
if ((fp = g_fopen(filename, "wb")) == NULL) {
FILE_OP_ERROR(filename, "fopen");
recv_write(sock, NULL);
return -1;
}
if (change_file_mode_rw(fp, filename) < 0)
FILE_OP_ERROR(filename, "chmod");
if ((ret = recv_write(sock, fp)) < 0) {
fclose(fp);
g_unlink(filename);
return ret;
}
if (fclose(fp) == EOF) {
FILE_OP_ERROR(filename, "fclose");
g_unlink(filename);
return -1;
}
return 0;
}
gint recv_bytes_write_to_file(SockInfo *sock, glong size, const gchar *filename)
{
FILE *fp;
gint ret;
g_return_val_if_fail(filename != NULL, -1);
if ((fp = g_fopen(filename, "wb")) == NULL) {
FILE_OP_ERROR(filename, "fopen");
return recv_bytes_write(sock, size, NULL);
}
if (change_file_mode_rw(fp, filename) < 0)
FILE_OP_ERROR(filename, "chmod");
if ((ret = recv_bytes_write(sock, size, fp)) < 0) {
fclose(fp);
g_unlink(filename);
return ret;
}
if (fclose(fp) == EOF) {
FILE_OP_ERROR(filename, "fclose");
g_unlink(filename);
return -1;
}
return 0;
}
gint recv_write(SockInfo *sock, FILE *fp)
{
gchar buf[BUFFSIZE];
gint len;
gint count = 0;
gint bytes = 0;
gchar *p;
GTimeVal tv_prev, tv_cur;
g_get_current_time(&tv_prev);
for (;;) {
if (sock_gets(sock, buf, sizeof(buf)) < 0) {
g_warning(_("error occurred while retrieving data.\n"));
return -2;
}
len = strlen(buf);
if (len > 1 && buf[0] == '.' && buf[1] == '\r') {
if (recv_ui_func)
recv_ui_func(sock, count, bytes,
recv_ui_func_data);
break;
}
count++;
bytes += len;
if (recv_ui_func) {
g_get_current_time(&tv_cur);
/* if elapsed time from previous update is greater
than 50msec, update UI */
if (tv_cur.tv_sec - tv_prev.tv_sec > 0 ||
tv_cur.tv_usec - tv_prev.tv_usec > UI_REFRESH_INTERVAL) {
gboolean ret;
ret = recv_ui_func(sock, count, bytes,
recv_ui_func_data);
if (ret == FALSE) return -1;
g_get_current_time(&tv_prev);
}
}
p = buf;
if (len > 1 && buf[len - 1] == '\n' && buf[len - 2] == '\r') {
buf[len - 2] = '\n';
buf[len - 1] = '\0';
}
if (buf[0] == '.' && buf[1] == '.')
p++;
else if (!strncmp(buf, ">From ", 6))
p++;
if (fp && fputs(p, fp) == EOF) {
perror("fputs");
g_warning(_("Can't write to file.\n"));
fp = NULL;
}
}
if (!fp) return -1;
return 0;
}
gint recv_bytes_write(SockInfo *sock, glong size, FILE *fp)
{
gchar *buf;
gchar *prev, *cur;
if (size == 0)
return 0;
buf = recv_bytes(sock, size);
if (!buf)
return -2;
/* +------------------+----------------+--------------------------+ *
* ^buf ^prev ^cur buf+size-1^ */
prev = buf;
while ((cur = memchr(prev, '\r', size - (prev - buf))) != NULL) {
if (cur == buf + size - 1) break;
if (fp && (fwrite(prev, sizeof(gchar), cur - prev, fp) == EOF ||
fwrite("\n", sizeof(gchar), 1, fp) == EOF)) {
perror("fwrite");
g_warning(_("Can't write to file.\n"));
fp = NULL;
}
if (*(cur + 1) == '\n')
prev = cur + 2;
else
prev = cur + 1;
if (prev - buf >= size) break;
}
if (prev - buf < size && fp &&
fwrite(prev, sizeof(gchar), size - (prev - buf), fp) == EOF) {
perror("fwrite");
g_warning(_("Can't write to file.\n"));
fp = NULL;
}
g_free(buf);
if (!fp) return -1;
return 0;
}
void recv_set_ui_func(RecvUIFunc func, gpointer data)
{
recv_ui_func = func;
recv_ui_func_data = data;
}
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