1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
|
/*
Copyright (C) 2022-2024 Selwin van Dijk
This file is part of signalbackup-tools.
signalbackup-tools 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 3 of the License, or
(at your option) any later version.
signalbackup-tools 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 signalbackup-tools. If not, see <https://www.gnu.org/licenses/>.
*/
#include "signalbackup.ih"
bool SignalBackup::missingAttachmentExpected(uint64_t rowid, int64_t unique_id) const
{
// if the attachment was never successfully completely downloaded, the data is expected to be missing.
// this is shown by the 'pending_push' field in the part table which can have the following values:
// public static final int TRANSFER_PROGRESS_DONE = 0;
// public static final int TRANSFER_PROGRESS_STARTED = 1;
// public static final int TRANSFER_PROGRESS_PENDING = 2;
// public static final int TRANSFER_PROGRESS_FAILED = 3;
SqliteDB::QueryResults results;
if (d_database.exec("SELECT " + d_part_pending + " FROM " + d_part_table + " WHERE _id = ?" +
(d_database.tableContainsColumn(d_part_table, "unique_id") ? " AND unique_id = " + bepaald::toString(unique_id) : "") +
" AND " + d_part_pending + " != 0",
rowid, &results))
if (results.rows() == 1)
return true;
// if the attachment is a view once type, it is expected to be missing
if (d_database.getSingleResultAs<std::string>("SELECT " + d_part_ct + " FROM " + d_part_table + " WHERE _id = ?" +
(d_database.tableContainsColumn(d_part_table, "unique_id") ? " AND unique_id = " + bepaald::toString(unique_id) : ""),
rowid, std::string()) == "application/x-signal-view-once")
return true;
SqliteDB::QueryResults isquote;
d_database.exec("SELECT " + d_part_mid + " FROM " + d_part_table + " WHERE _id = ?" +
(d_database.tableContainsColumn(d_part_table, "unique_id") ? " AND unique_id = " + bepaald::toString(unique_id) : "") +
" AND quote = 1", rowid, &isquote);
if (isquote.rows())
{
long long int mid = isquote.getValueAs<long long int>(0, d_part_mid);
// if the attachment is in a quote and the original quote is missing, attachment is expected to be missing (NOT ALWAYS)
if (d_database.exec("SELECT _id FROM " + d_mms_table + " WHERE quote_missing = 1 AND _id = ?", mid, &results))
if (results.rows() == 1)
return true;
// quote_missing is not always (often not?) set to 1 even if quote is missing, so manually check:
// check for remote deleted
if (d_database.exec("SELECT _id FROM " + d_mms_table + " WHERE remote_deleted IS 1 AND " +
d_mms_date_sent + " IS (SELECT quote_id FROM " + d_mms_table + " WHERE _id = ?)",
mid, &results))
if (results.rows()) // can be > 1 if message are doubled (and before date_sent had UNIQUE)
return true;
// check when self-deleted
long long int quoteid = 0;
if ((quoteid = d_database.getSingleResultAs<long long int>("SELECT IFNULL(quote_id, 0)_id FROM " + d_mms_table + " WHERE _id = ?", mid, 0)) != 0)
{
d_database.exec("SELECT _id FROM " + d_mms_table + " WHERE " + d_mms_date_sent + " = ? AND "
"thread_id IS (SELECT thread_id FROM " + d_mms_table + " WHERE _id = ?)",
{quoteid, mid}, &results);
if (results.rows() == 0)
return true;
}
}
// if the attachment is in a quote, but required no preview (is not an image or video), attachment
// is expected to be missing (though not always)
// NOTE
// I have seen this fail for a 'image/webp' type, maybe because that particular image type was not supported? (for that phone??)
if (d_database.exec("SELECT " + d_part_ct + " FROM " + d_part_table + " WHERE quote = 1 AND _id = ?" +
(d_database.tableContainsColumn(d_part_table, "unique_id") ? " AND unique_id = " + bepaald::toString(unique_id) : "") +
" AND " + d_part_ct + " NOT LIKE 'image%' AND " + d_part_ct + " NOT LIKE 'video%'", rowid, &results))
if (results.rows() == 1)
return true;
return false;
}
|
