123 lines
2.6 KiB
C
123 lines
2.6 KiB
C
|
#include <unistd.h>
|
||
|
#include <sys/types.h>
|
||
|
#include <sys/stat.h>
|
||
|
#include <stdlib.h>
|
||
|
#include <fcntl.h>
|
||
|
#include <errno.h>
|
||
|
#include <stdio.h>
|
||
|
#include <string.h>
|
||
|
#include <assert.h>
|
||
|
|
||
|
#include "binlog.h"
|
||
|
#include "mtproto-common.h"
|
||
|
#include "net.h"
|
||
|
|
||
|
#define LOG_START 0x8948329a
|
||
|
#define LOG_AUTH_KEY 0x984932aa
|
||
|
#define LOG_DEFAULT_DC 0x95382908
|
||
|
|
||
|
#define BINLOG_BUFFER_SIZE (1 << 20)
|
||
|
int binlog_buffer[BINLOG_BUFFER_SIZE];
|
||
|
int *rptr;
|
||
|
int *wptr;
|
||
|
extern int test_dc;
|
||
|
|
||
|
#define MAX_LOG_EVENT_SIZE (1 << 17)
|
||
|
|
||
|
char *get_binlog_file_name (void);
|
||
|
extern struct dc *DC_list[];
|
||
|
extern struct dc *DC_working;
|
||
|
extern int dc_working_num;
|
||
|
|
||
|
void replay_log_event (void) {
|
||
|
assert (rptr < wptr);
|
||
|
int op = *rptr;
|
||
|
|
||
|
in_ptr = rptr;
|
||
|
in_end = wptr;
|
||
|
switch (op) {
|
||
|
case LOG_START:
|
||
|
rptr ++;
|
||
|
return;
|
||
|
case CODE_dc_option:
|
||
|
fetch_dc_option ();
|
||
|
return;
|
||
|
case LOG_AUTH_KEY:
|
||
|
rptr ++;
|
||
|
{
|
||
|
int num = *(rptr ++);
|
||
|
assert (num >= 0 && num <= MAX_DC_ID);
|
||
|
assert (DC_list[num]);
|
||
|
DC_list[num]->auth_key_id = *(long long *)rptr;
|
||
|
rptr += 2;
|
||
|
memcpy (DC_list[num]->auth_key, rptr, 256);
|
||
|
rptr += 64;
|
||
|
};
|
||
|
return;
|
||
|
case LOG_DEFAULT_DC:
|
||
|
rptr ++;
|
||
|
{
|
||
|
int num = *(rptr ++);
|
||
|
assert (num >= 0 && num <= MAX_DC_ID);
|
||
|
DC_working = DC_list[num];
|
||
|
dc_working_num = num;
|
||
|
}
|
||
|
return;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
void create_new_binlog (void) {
|
||
|
static int s[1000];
|
||
|
packet_ptr = s;
|
||
|
out_int (LOG_START);
|
||
|
out_int (CODE_dc_option);
|
||
|
out_int (0);
|
||
|
out_string ("");
|
||
|
out_string (test_dc ? TG_SERVER_TEST : TG_SERVER);
|
||
|
out_int (443);
|
||
|
|
||
|
int fd = open (get_binlog_file_name (), O_WRONLY | O_EXCL);
|
||
|
assert (write (fd, s, (packet_ptr - s) * 4) == (packet_ptr - s) * 4);
|
||
|
close (fd);
|
||
|
}
|
||
|
|
||
|
|
||
|
void replay_log (void) {
|
||
|
if (access (get_binlog_file_name (), F_OK) < 0) {
|
||
|
printf ("No binlog found. Creating new one");
|
||
|
create_new_binlog ();
|
||
|
}
|
||
|
int fd = open (get_binlog_file_name (), O_RDONLY);
|
||
|
if (fd < 0) {
|
||
|
perror ("binlog open");
|
||
|
exit (2);
|
||
|
}
|
||
|
int end;
|
||
|
while (1) {
|
||
|
if (!end && wptr - rptr < MAX_LOG_EVENT_SIZE / 4) {
|
||
|
if (wptr == rptr) {
|
||
|
wptr = rptr = binlog_buffer;
|
||
|
} else {
|
||
|
int x = wptr - rptr;
|
||
|
memcpy (binlog_buffer, rptr, 4 * x);
|
||
|
wptr -= x;
|
||
|
rptr -= x;
|
||
|
}
|
||
|
int l = (binlog_buffer + BINLOG_BUFFER_SIZE - wptr) * 4;
|
||
|
int k = read (fd, wptr, l);
|
||
|
if (k < 0) {
|
||
|
perror ("read binlog");
|
||
|
exit (2);
|
||
|
}
|
||
|
assert (!(k & 3));
|
||
|
if (k < l) {
|
||
|
end = 1;
|
||
|
}
|
||
|
wptr += (k / 4);
|
||
|
}
|
||
|
if (wptr == rptr) { break; }
|
||
|
replay_log_event ();
|
||
|
}
|
||
|
close (fd);
|
||
|
}
|