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/* Copyright (c) 2011-2018 Dovecot authors, see the included COPYING file */
#include "lib.h"
#include "hex-dec.h"
#include "istream.h"
#include "index/dbox-common/dbox-file.h"
#include "doveadm-dump.h"
#include <stdio.h>
#include <fcntl.h>
#include <unistd.h>
static void
dump_timestamp(struct istream *input, const char *name, const char *value)
{
time_t t;
if (strcmp(value, "0") == 0)
t = 0;
else {
t = hex2dec((const void *)value, strlen(value));
if (t == 0) {
i_fatal("Invalid %s at %"PRIuUOFF_T": %s",
name, input->v_offset, value);
}
}
printf("%s = %ld (%s)\n", name, (long)t, unixdate2str(t));
}
static uoff_t
dump_size(struct istream *input, const char *name, const char *value)
{
uoff_t size;
if (strcmp(value, "0") == 0)
size = 0;
else {
size = hex2dec((const void *)value, strlen(value));
if (size == 0) {
i_fatal("Invalid %s at %"PRIuUOFF_T": %s",
name, input->v_offset, value);
}
}
printf("%s = %"PRIuUOFF_T"\n", name, size);
return size;
}
static unsigned int dump_file_hdr(struct istream *input)
{
const char *line, *const *arg, *version;
unsigned int msg_hdr_size = 0;
if ((line = i_stream_read_next_line(input)) == NULL)
i_fatal("Empty file");
arg = t_strsplit(line, " ");
/* check version */
version = *arg;
if (version == NULL || !str_is_numeric(version, ' '))
i_fatal("%s is not a dbox file", i_stream_get_name(input));
if (strcmp(version, "2") != 0)
i_fatal("Unsupported dbox file version %s", version);
arg++;
for (; *arg != NULL; arg++) {
switch (**arg) {
case DBOX_HEADER_MSG_HEADER_SIZE:
msg_hdr_size = hex2dec((const void *)(*arg + 1),
strlen(*arg + 1));
if (msg_hdr_size == 0) {
i_fatal("Invalid msg_header_size header: %s",
*arg + 1);
}
printf("file.msg_header_size = %u\n", msg_hdr_size);
break;
case DBOX_HEADER_CREATE_STAMP:
dump_timestamp(input, "file.create_stamp", *arg + 1);
break;
default:
printf("file.unknown-%c = %s\n", **arg, *arg + 1);
break;
}
}
if (msg_hdr_size == 0)
i_fatal("Missing msg_header_size in file header");
return msg_hdr_size;
}
static bool
dump_msg_hdr(struct istream *input, unsigned int hdr_size, uoff_t *msg_size_r)
{
struct dbox_message_header hdr;
const unsigned char *data;
size_t size;
uoff_t msg_size;
if (i_stream_read_bytes(input, &data, &size, hdr_size) <= 0) {
if (size == 0)
return FALSE;
i_fatal("Partial message header read at %"PRIuUOFF_T": %zu bytes",
input->v_offset, size);
}
printf("offset %"PRIuUOFF_T":\n", input->v_offset);
if (hdr_size < sizeof(hdr))
i_fatal("file.hdr_size too small: %u", hdr_size);
memcpy(&hdr, data, sizeof(hdr));
if (memcmp(hdr.magic_pre, DBOX_MAGIC_PRE, sizeof(hdr.magic_pre)) != 0)
i_fatal("dbox wrong pre-magic at %"PRIuUOFF_T, input->v_offset);
msg_size = dump_size(input, "msg.size",
t_strndup(hdr.message_size_hex, sizeof(hdr.message_size_hex)));
i_stream_skip(input, hdr_size);
*msg_size_r = msg_size;
return TRUE;
}
static void dump_msg_metadata(struct istream *input)
{
struct dbox_metadata_header hdr;
const unsigned char *data;
size_t size;
const char *line;
/* verify magic */
if (i_stream_read_bytes(input, &data, &size, sizeof(hdr)) <= 0) {
i_fatal("dbox missing metadata at %"PRIuUOFF_T,
input->v_offset);
}
memcpy(&hdr, data, sizeof(hdr));
if (memcmp(hdr.magic_post, DBOX_MAGIC_POST, sizeof(hdr.magic_post)) != 0)
i_fatal("dbox wrong post-magic at %"PRIuUOFF_T, input->v_offset);
i_stream_skip(input, sizeof(hdr));
/* dump the metadata */
for (;;) {
if ((line = i_stream_read_next_line(input)) == NULL)
i_fatal("dbox metadata ended unexpectedly at EOF");
if (*line == '\0')
break;
switch (*line) {
case DBOX_METADATA_GUID:
printf("msg.guid = %s\n", line + 1);
break;
case DBOX_METADATA_POP3_UIDL:
printf("msg.pop3-uidl = %s\n", line + 1);
break;
case DBOX_METADATA_POP3_ORDER:
printf("msg.pop3-order = %s\n", line + 1);
break;
case DBOX_METADATA_RECEIVED_TIME:
dump_timestamp(input, "msg.received", line + 1);
break;
case DBOX_METADATA_PHYSICAL_SIZE:
(void)dump_size(input, "msg.physical-size", line + 1);
break;
case DBOX_METADATA_VIRTUAL_SIZE:
(void)dump_size(input, "msg.virtual-size", line + 1);
break;
case DBOX_METADATA_EXT_REF:
printf("msg.ext-ref = %s\n", line + 1);
break;
case DBOX_METADATA_ORIG_MAILBOX:
printf("msg.orig-mailbox = %s\n", line + 1);
break;
case DBOX_METADATA_OLDV1_EXPUNGED:
case DBOX_METADATA_OLDV1_FLAGS:
case DBOX_METADATA_OLDV1_KEYWORDS:
case DBOX_METADATA_OLDV1_SAVE_TIME:
case DBOX_METADATA_OLDV1_SPACE:
printf("msg.obsolete-%c = %s\n", *line, line + 1);
break;
}
}
}
static bool dump_msg(struct istream *input, unsigned int hdr_size)
{
uoff_t msg_size;
if (!dump_msg_hdr(input, hdr_size, &msg_size))
return FALSE;
i_stream_skip(input, msg_size);
dump_msg_metadata(input);
return TRUE;
}
static void cmd_dump_dbox(const char *path, const char *const *args ATTR_UNUSED)
{
struct istream *input;
int fd;
unsigned int hdr_size;
bool ret;
fd = open(path, O_RDONLY);
if (fd < 0)
i_fatal("open(%s) failed: %m", path);
input = i_stream_create_fd_autoclose(&fd, SIZE_MAX);
i_stream_set_name(input, path);
hdr_size = dump_file_hdr(input);
do {
printf("\n");
T_BEGIN {
ret = dump_msg(input, hdr_size);
} T_END;
} while (ret);
i_stream_destroy(&input);
}
static bool test_dump_dbox(const char *path)
{
const char *p;
p = strrchr(path, '/');
if (p == NULL)
p = path;
else
p++;
return str_begins(p, "m.") || str_begins(p, "u.");
}
struct doveadm_cmd_dump doveadm_cmd_dump_dbox = {
"dbox",
test_dump_dbox,
cmd_dump_dbox
};
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