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chatmail-core/src/dc_receive_imf.rs
Friedel Ziegelmayer 8a0fc609e6 The big sqlite refactor 
* refactor: safe sql access

* Clean up the worst rebase mistakes

* Some more progress on the rebase fallout and this branch

* upgrade and compile again

* cleanup from rebase

* example of how to prepare now

* rebase fixes

* add sql.query_map

* less preparation

* more improvements in sql code

* fix string truncation

* more prepare conversions

* most prep done

* fix tests

* fix ffi

* fix last prepares

* fix segfaults and some queries

* use r2d2 pool

* fix dc_job sql call, to reduce contention

* try newer rust

* No more vararg printing (drop dc_log_)

* ignore expected errors

* fix: uses exists instead of execute where needed

* fix: get_contacts logic was broken

* fix: contact creation

* test on 32bit linux

* ci: try running 32bit without cross

* undo 32bit tests

* refactor: rename dc_sqlite3 to sql

* fix: safer string conversions

* more string fixes

* try fixing appveyor build to 64bit

* chore(ci): hardcode target

* chore(ci): appveyor

* some cleanup work

* try fix darwin

* fix and improve sql escaping

* fix various bugs

* fix chat deletion

* refactor: cleanup config values and move to their own file

* refactor: move more methods onto the sql struct

* dont panic on failed state loading

* first round of cr

* one more cr fix

* stop using strange defaults

* remove unused escapes
2019-07-18 00:24:45 +02:00

2040 lines
92 KiB
Rust
Raw Blame History

use mmime::mailimf::*;
use mmime::mailimf_types::*;
use mmime::mailmime::*;
use mmime::mailmime_content::*;
use mmime::mailmime_types::*;
use mmime::mmapstring::*;
use mmime::other::*;
use sha2::{Digest, Sha256};
use crate::constants::*;
use crate::context::Context;
use crate::dc_array::*;
use crate::dc_chat::*;
use crate::dc_contact::*;
use crate::dc_job::*;
use crate::dc_location::*;
use crate::dc_mimeparser::*;
use crate::dc_move::*;
use crate::dc_msg::*;
use crate::dc_param::*;
use crate::dc_securejoin::*;
use crate::dc_stock::*;
use crate::dc_strencode::*;
use crate::dc_tools::*;
use crate::peerstate::*;
use crate::sql;
use crate::types::*;
use crate::x::*;
pub unsafe fn dc_receive_imf(
context: &Context,
imf_raw_not_terminated: *const libc::c_char,
imf_raw_bytes: size_t,
server_folder: impl AsRef<str>,
server_uid: uint32_t,
flags: uint32_t,
) {
let mut current_block: u64;
/* the function returns the number of created messages in the database */
let mut incoming: libc::c_int = 1;
let mut incoming_origin: libc::c_int = 0;
let mut to_self: libc::c_int = 0;
let mut from_id: uint32_t = 0 as uint32_t;
let mut from_id_blocked: libc::c_int = 0;
let mut to_id: uint32_t = 0 as uint32_t;
let mut chat_id: uint32_t = 0 as uint32_t;
let mut chat_id_blocked: libc::c_int = 0;
let mut state: libc::c_int;
let mut hidden: libc::c_int = 0;
let mut msgrmsg: libc::c_int;
let mut add_delete_job: libc::c_int = 0;
let mut insert_msg_id: uint32_t = 0 as uint32_t;
let mut i: size_t;
let mut icnt: size_t;
/* Message-ID from the header */
let mut rfc724_mid = 0 as *mut libc::c_char;
let mut sort_timestamp = 0;
let mut sent_timestamp = 0;
let mut rcvd_timestamp = 0;
let mut field: *const mailimf_field;
let mut mime_in_reply_to = 0 as *mut libc::c_char;
let mut mime_references = 0 as *mut libc::c_char;
let mut created_db_entries = Vec::new();
let mut create_event_to_send = Some(Event::MSGS_CHANGED);
let mut rr_event_to_send = Vec::new();
let mut txt_raw = 0 as *mut libc::c_char;
// XXX converting the below "to_ids" to a Vec quickly leads to lots of changes
// so we keep it as a dc_array for now
let to_ids = dc_array_new(16);
assert!(!to_ids.is_null());
info!(
context,
0,
"Receiving message {}/{}...",
if !server_folder.as_ref().is_empty() {
server_folder.as_ref()
} else {
"?"
},
server_uid,
);
let mut mime_parser = dc_mimeparser_new(context);
dc_mimeparser_parse(&mut mime_parser, imf_raw_not_terminated, imf_raw_bytes);
if mime_parser.header.is_empty() {
info!(context, 0, "No header.",);
} else {
/* Error - even adding an empty record won't help as we do not know the message ID */
field = dc_mimeparser_lookup_field(&mut mime_parser, "Date");
if !field.is_null() && (*field).fld_type == MAILIMF_FIELD_ORIG_DATE as libc::c_int {
let orig_date: *mut mailimf_orig_date = (*field).fld_data.fld_orig_date;
if !orig_date.is_null() {
sent_timestamp = dc_timestamp_from_date((*orig_date).dt_date_time)
}
}
field = dc_mimeparser_lookup_field(&mime_parser, "From");
if !field.is_null() && (*field).fld_type == MAILIMF_FIELD_FROM as libc::c_int {
let fld_from: *mut mailimf_from = (*field).fld_data.fld_from;
if !fld_from.is_null() {
let mut check_self: libc::c_int = 0;
let from_list: *mut dc_array_t = dc_array_new(16 as size_t);
dc_add_or_lookup_contacts_by_mailbox_list(
context,
(*fld_from).frm_mb_list,
0x10,
from_list,
&mut check_self,
);
if 0 != check_self {
incoming = 0;
if 0 != dc_mimeparser_sender_equals_recipient(&mime_parser) {
from_id = 1 as uint32_t
}
} else if dc_array_get_cnt(from_list) >= 1 {
from_id = dc_array_get_id(from_list, 0 as size_t);
incoming_origin = dc_get_contact_origin(context, from_id, &mut from_id_blocked)
}
dc_array_unref(from_list);
}
}
field = dc_mimeparser_lookup_field(&mime_parser, "To");
if !field.is_null() && (*field).fld_type == MAILIMF_FIELD_TO as libc::c_int {
let fld_to: *mut mailimf_to = (*field).fld_data.fld_to;
if !fld_to.is_null() {
dc_add_or_lookup_contacts_by_address_list(
context,
(*fld_to).to_addr_list,
if 0 == incoming {
0x4000
} else if incoming_origin >= 0x100 {
0x400
} else {
0x40
},
to_ids,
&mut to_self,
);
}
}
if !dc_mimeparser_get_last_nonmeta(&mime_parser).is_null() {
field = dc_mimeparser_lookup_field(&mime_parser, "Cc");
if !field.is_null() && (*field).fld_type == MAILIMF_FIELD_CC as libc::c_int {
let fld_cc: *mut mailimf_cc = (*field).fld_data.fld_cc;
if !fld_cc.is_null() {
dc_add_or_lookup_contacts_by_address_list(
context,
(*fld_cc).cc_addr_list,
if 0 == incoming {
0x2000
} else if incoming_origin >= 0x100 {
0x200
} else {
0x20
},
to_ids,
0 as *mut libc::c_int,
);
}
}
field = dc_mimeparser_lookup_field(&mime_parser, "Message-ID");
if !field.is_null() && (*field).fld_type == MAILIMF_FIELD_MESSAGE_ID as libc::c_int {
let fld_message_id: *mut mailimf_message_id = (*field).fld_data.fld_message_id;
if !fld_message_id.is_null() {
rfc724_mid = dc_strdup((*fld_message_id).mid_value)
}
}
if rfc724_mid.is_null() {
rfc724_mid = dc_create_incoming_rfc724_mid(sent_timestamp, from_id, to_ids);
if rfc724_mid.is_null() {
info!(context, 0, "Cannot create Message-ID.",);
current_block = 16282941964262048061;
} else {
current_block = 777662472977924419;
}
} else {
current_block = 777662472977924419;
}
match current_block {
16282941964262048061 => {}
_ => {
/* check, if the mail is already in our database - if so, just update the folder/uid (if the mail was moved around) and finish.
(we may get a mail twice eg. if it is moved between folders. make sure, this check is done eg. before securejoin-processing) */
let mut old_server_folder: *mut libc::c_char = 0 as *mut libc::c_char;
let mut old_server_uid: uint32_t = 0 as uint32_t;
if 0 != dc_rfc724_mid_exists(
context,
rfc724_mid,
&mut old_server_folder,
&mut old_server_uid,
) {
if as_str(old_server_folder) != server_folder.as_ref()
|| old_server_uid != server_uid
{
dc_update_server_uid(
context,
rfc724_mid,
server_folder.as_ref(),
server_uid,
);
}
free(old_server_folder as *mut libc::c_void);
info!(context, 0, "Message already in DB.");
current_block = 16282941964262048061;
} else {
msgrmsg = mime_parser.is_send_by_messenger;
if msgrmsg == 0
&& 0 != dc_is_reply_to_messenger_message(context, &mime_parser)
{
msgrmsg = 2
}
/* incoming non-chat messages may be discarded;
maybe this can be optimized later,
by checking the state before the message body is downloaded */
let mut allow_creation: libc::c_int = 1;
if msgrmsg == 0 {
let show_emails = context
.sql
.get_config_int(context, "show_emails")
.unwrap_or_default();
if show_emails == 0 {
chat_id = 3;
allow_creation = 0
} else if show_emails == 1 {
allow_creation = 0
}
}
if 0 != incoming {
state = if 0 != flags & 0x1 { 16 } else { 10 };
to_id = 1 as uint32_t;
if !dc_mimeparser_lookup_field(&mime_parser, "Secure-Join").is_null() {
msgrmsg = 1;
chat_id = 0 as uint32_t;
allow_creation = 1;
let handshake: libc::c_int =
dc_handle_securejoin_handshake(context, &mime_parser, from_id);
if 0 != handshake & 0x2 {
hidden = 1;
add_delete_job = handshake & 0x4;
state = 16
}
}
let mut test_normal_chat_id: uint32_t = 0 as uint32_t;
let mut test_normal_chat_id_blocked: libc::c_int = 0;
dc_lookup_real_nchat_by_contact_id(
context,
from_id,
&mut test_normal_chat_id,
&mut test_normal_chat_id_blocked,
);
if chat_id == 0 as libc::c_uint {
let create_blocked: libc::c_int = if 0 != test_normal_chat_id
&& test_normal_chat_id_blocked == 0
|| incoming_origin >= 0x7fffffff
{
0
} else {
2
};
create_or_lookup_group(
context,
&mut mime_parser,
allow_creation,
create_blocked,
from_id as int32_t,
to_ids,
&mut chat_id,
&mut chat_id_blocked,
);
if 0 != chat_id && 0 != chat_id_blocked && 0 == create_blocked {
dc_unblock_chat(context, chat_id);
chat_id_blocked = 0
}
}
if chat_id == 0 as libc::c_uint {
if 0 != dc_mimeparser_is_mailinglist_message(&mime_parser) {
chat_id = 3 as uint32_t;
info!(
context,
0, "Message belongs to a mailing list and is ignored.",
);
}
}
if chat_id == 0 as libc::c_uint {
let create_blocked_0: libc::c_int =
if incoming_origin >= 0x7fffffff || from_id == to_id {
0
} else {
2
};
if 0 != test_normal_chat_id {
chat_id = test_normal_chat_id;
chat_id_blocked = test_normal_chat_id_blocked
} else if 0 != allow_creation {
dc_create_or_lookup_nchat_by_contact_id(
context,
from_id,
create_blocked_0,
&mut chat_id,
&mut chat_id_blocked,
);
}
if 0 != chat_id && 0 != chat_id_blocked {
if 0 == create_blocked_0 {
dc_unblock_chat(context, chat_id);
chat_id_blocked = 0
} else if 0
!= dc_is_reply_to_known_message(context, &mime_parser)
{
dc_scaleup_contact_origin(context, from_id, 0x100);
info!(
context,
0,
"Message is a reply to a known message, mark sender as known.",
);
incoming_origin = if incoming_origin > 0x100 {
incoming_origin
} else {
0x100
}
}
}
}
if chat_id == 0 as libc::c_uint {
chat_id = 3 as uint32_t
}
if 0 != chat_id_blocked && state == 10 {
if incoming_origin < 0x100 && msgrmsg == 0 {
state = 13
}
}
} else {
state = 26;
from_id = 1 as uint32_t;
if dc_array_get_cnt(to_ids) >= 1 {
to_id = dc_array_get_id(to_ids, 0 as size_t);
if chat_id == 0 as libc::c_uint {
create_or_lookup_group(
context,
&mut mime_parser,
allow_creation,
0,
from_id as int32_t,
to_ids,
&mut chat_id,
&mut chat_id_blocked,
);
if 0 != chat_id && 0 != chat_id_blocked {
dc_unblock_chat(context, chat_id);
chat_id_blocked = 0
}
}
if chat_id == 0 as libc::c_uint && 0 != allow_creation {
let create_blocked_1: libc::c_int =
if 0 != msgrmsg && !dc_is_contact_blocked(context, to_id) {
0
} else {
2
};
dc_create_or_lookup_nchat_by_contact_id(
context,
to_id,
create_blocked_1,
&mut chat_id,
&mut chat_id_blocked,
);
if 0 != chat_id && 0 != chat_id_blocked && 0 == create_blocked_1
{
dc_unblock_chat(context, chat_id);
chat_id_blocked = 0
}
}
}
if chat_id == 0 as libc::c_uint {
if dc_array_get_cnt(to_ids) == 0 && 0 != to_self {
dc_create_or_lookup_nchat_by_contact_id(
context,
1 as uint32_t,
0,
&mut chat_id,
&mut chat_id_blocked,
);
if 0 != chat_id && 0 != chat_id_blocked {
dc_unblock_chat(context, chat_id);
chat_id_blocked = 0
}
}
}
if chat_id == 0 as libc::c_uint {
chat_id = 3 as uint32_t
}
}
calc_timestamps(
context,
chat_id,
from_id,
sent_timestamp,
if 0 != flags & 0x1 { 0 } else { 1 },
&mut sort_timestamp,
&mut sent_timestamp,
&mut rcvd_timestamp,
);
dc_unarchive_chat(context, chat_id);
// if the mime-headers should be saved, find out its size
// (the mime-header ends with an empty line)
let save_mime_headers = context
.sql
.get_config_int(context, "save_mime_headers")
.unwrap_or_default();
field = dc_mimeparser_lookup_field(&mime_parser, "In-Reply-To");
if !field.is_null()
&& (*field).fld_type == MAILIMF_FIELD_IN_REPLY_TO as libc::c_int
{
let fld_in_reply_to: *mut mailimf_in_reply_to =
(*field).fld_data.fld_in_reply_to;
if !fld_in_reply_to.is_null() {
mime_in_reply_to = dc_str_from_clist(
(*(*field).fld_data.fld_in_reply_to).mid_list,
b" \x00" as *const u8 as *const libc::c_char,
)
}
}
field = dc_mimeparser_lookup_field(&mime_parser, "References");
if !field.is_null()
&& (*field).fld_type == MAILIMF_FIELD_REFERENCES as libc::c_int
{
let fld_references: *mut mailimf_references =
(*field).fld_data.fld_references;
if !fld_references.is_null() {
mime_references = dc_str_from_clist(
(*(*field).fld_data.fld_references).mid_list,
b" \x00" as *const u8 as *const libc::c_char,
)
}
}
icnt = carray_count(mime_parser.parts) as size_t;
context.sql.prepare(
"INSERT INTO msgs \
(rfc724_mid, server_folder, server_uid, chat_id, from_id, to_id, timestamp, \
timestamp_sent, timestamp_rcvd, type, state, msgrmsg, txt, txt_raw, param, \
bytes, hidden, mime_headers, mime_in_reply_to, mime_references) \
VALUES (?,?,?,?,?,?, ?,?,?,?,?,?, ?,?,?,?,?,?, ?,?);",
|mut stmt| {
let mut i = 0;
loop {
if !(i < icnt) {
current_block = 2756754640271984560;
break;
}
let part = carray_get(mime_parser.parts, i as libc::c_uint) as *mut dc_mimepart_t;
if !(0 != (*part).is_meta) {
if !mime_parser.location_kml.is_null()
&& icnt == 1
&& !(*part).msg.is_null()
&& (strcmp(
(*part).msg,
b"-location-\x00" as *const u8 as *const libc::c_char,
) == 0
|| *(*part).msg.offset(0isize) as libc::c_int == 0)
{
hidden = 1;
if state == 10 {
state = 13
}
}
if (*part).type_0 == 10 {
txt_raw = dc_mprintf(
b"%s\n\n%s\x00" as *const u8 as *const libc::c_char,
if !mime_parser.subject.is_null() {
mime_parser.subject
} else {
b"\x00" as *const u8 as *const libc::c_char
},
(*part).msg_raw,
)
}
if 0 != mime_parser.is_system_message {
dc_param_set_int(
(*part).param,
'S' as i32,
mime_parser.is_system_message,
);
}
let res = stmt.execute(params![
as_str(rfc724_mid),
server_folder.as_ref(),
server_uid as libc::c_int,
chat_id as libc::c_int,
from_id as libc::c_int,
to_id as libc::c_int,
sort_timestamp,
sent_timestamp,
rcvd_timestamp,
(*part).type_0,
state,
msgrmsg,
if !(*part).msg.is_null() {
as_str((*part).msg)
} else {
""
},
if !txt_raw.is_null() {
as_str(txt_raw)
} else {
""
},
as_str((*(*part).param).packed),
(*part).bytes,
hidden,
if 0 != save_mime_headers {
Some(to_string(imf_raw_not_terminated))
} else {
None
},
to_string(mime_in_reply_to),
to_string(mime_references),
]);
if res.is_err() {
info!(context, 0, "Cannot write DB.",);
/* i/o error - there is nothing more we can do - in other cases, we try to write at least an empty record */
current_block = 16282941964262048061;
break;
} else {
free(txt_raw as *mut libc::c_void);
txt_raw = 0 as *mut libc::c_char;
insert_msg_id = sql::get_rowid(
context,
&context.sql,
"msgs",
"rfc724_mid",
as_str(rfc724_mid),
);
created_db_entries.push((chat_id as usize, insert_msg_id as usize));
}
}
i = i.wrapping_add(1)
}
Ok(())
}
).unwrap(); // TODO: better error handling
match current_block {
16282941964262048061 => {}
_ => {
info!(
context,
0,
"Message has {} parts and is assigned to chat #{}.",
icnt,
chat_id,
);
if chat_id == 3 as libc::c_uint {
create_event_to_send = None;
} else if 0 != incoming && state == 10 {
if 0 != from_id_blocked {
create_event_to_send = None;
} else if 0 != chat_id_blocked {
create_event_to_send = Some(Event::MSGS_CHANGED);
} else {
create_event_to_send = Some(Event::INCOMING_MSG);
}
}
dc_do_heuristics_moves(
context,
server_folder.as_ref(),
insert_msg_id,
);
current_block = 18330534242458572360;
}
}
}
}
}
} else {
if sent_timestamp > time() {
sent_timestamp = time()
}
current_block = 18330534242458572360;
}
match current_block {
16282941964262048061 => {}
_ => {
if carray_count(mime_parser.reports) > 0 as libc::c_uint {
let mdns_enabled = context
.sql
.get_config_int(context, "mdns_enabled")
.unwrap_or_else(|| 1);
icnt = carray_count(mime_parser.reports) as size_t;
i = 0 as size_t;
while i < icnt {
let mut mdn_consumed: libc::c_int = 0;
let report_root: *mut mailmime =
carray_get(mime_parser.reports, i as libc::c_uint) as *mut mailmime;
let report_type: *mut mailmime_parameter = mailmime_find_ct_parameter(
report_root,
b"report-type\x00" as *const u8 as *const libc::c_char,
);
if !(report_root.is_null()
|| report_type.is_null()
|| (*report_type).pa_value.is_null())
{
if strcmp(
(*report_type).pa_value,
b"disposition-notification\x00" as *const u8 as *const libc::c_char,
) == 0
&& (*(*report_root).mm_data.mm_multipart.mm_mp_list).count >= 2
{
if 0 != mdns_enabled {
let report_data: *mut mailmime =
(if !if !(*(*report_root).mm_data.mm_multipart.mm_mp_list)
.first
.is_null()
{
(*(*(*report_root).mm_data.mm_multipart.mm_mp_list)
.first)
.next
} else {
0 as *mut clistcell
}
.is_null()
{
(*if !(*(*report_root).mm_data.mm_multipart.mm_mp_list)
.first
.is_null()
{
(*(*(*report_root).mm_data.mm_multipart.mm_mp_list)
.first)
.next
} else {
0 as *mut clistcell
})
.data
} else {
0 as *mut libc::c_void
}) as *mut mailmime;
if !report_data.is_null()
&& (*(*(*report_data).mm_content_type).ct_type).tp_type
== MAILMIME_TYPE_COMPOSITE_TYPE as libc::c_int
&& (*(*(*(*report_data).mm_content_type).ct_type)
.tp_data
.tp_composite_type)
.ct_type
== MAILMIME_COMPOSITE_TYPE_MESSAGE as libc::c_int
&& strcmp(
(*(*report_data).mm_content_type).ct_subtype,
b"disposition-notification\x00" as *const u8
as *const libc::c_char,
) == 0
{
let mut report_body: *const libc::c_char =
0 as *const libc::c_char;
let mut report_body_bytes: size_t = 0 as size_t;
let mut to_mmap_string_unref: *mut libc::c_char =
0 as *mut libc::c_char;
if 0 != mailmime_transfer_decode(
report_data,
&mut report_body,
&mut report_body_bytes,
&mut to_mmap_string_unref,
) {
let mut report_parsed: *mut mailmime =
0 as *mut mailmime;
let mut dummy: size_t = 0 as size_t;
if mailmime_parse(
report_body,
report_body_bytes,
&mut dummy,
&mut report_parsed,
) == MAIL_NO_ERROR as libc::c_int
&& !report_parsed.is_null()
{
let report_fields: *mut mailimf_fields =
mailmime_find_mailimf_fields(report_parsed);
if !report_fields.is_null() {
let of_disposition:
*mut mailimf_optional_field =
mailimf_find_optional_field(report_fields,
b"Disposition\x00"
as
*const u8
as
*const libc::c_char);
let of_org_msgid: *mut mailimf_optional_field =
mailimf_find_optional_field(
report_fields,
b"Original-Message-ID\x00" as *const u8
as *const libc::c_char,
);
if !of_disposition.is_null()
&& !(*of_disposition).fld_value.is_null()
&& !of_org_msgid.is_null()
&& !(*of_org_msgid).fld_value.is_null()
{
let mut rfc724_mid_0: *mut libc::c_char =
0 as *mut libc::c_char;
dummy = 0 as size_t;
if mailimf_msg_id_parse(
(*of_org_msgid).fld_value,
strlen((*of_org_msgid).fld_value),
&mut dummy,
&mut rfc724_mid_0,
) == MAIL_NO_ERROR as libc::c_int
&& !rfc724_mid_0.is_null()
{
let mut chat_id_0: uint32_t =
0 as uint32_t;
let mut msg_id: uint32_t =
0 as uint32_t;
if 0 != dc_mdn_from_ext(
context,
from_id,
rfc724_mid_0,
sent_timestamp,
&mut chat_id_0,
&mut msg_id,
) {
rr_event_to_send
.push((chat_id_0, 0));
rr_event_to_send.push((msg_id, 0));
}
mdn_consumed = (msg_id
!= 0 as libc::c_uint)
as libc::c_int;
free(rfc724_mid_0 as *mut libc::c_void);
}
}
}
mailmime_free(report_parsed);
}
if !to_mmap_string_unref.is_null() {
mmap_string_unref(to_mmap_string_unref);
}
}
}
}
if 0 != mime_parser.is_send_by_messenger || 0 != mdn_consumed {
let param = dc_param_new();
dc_param_set(
param,
'Z' as i32,
to_cstring(server_folder.as_ref()).as_ptr(),
);
dc_param_set_int(param, 'z' as i32, server_uid as i32);
if 0 != mime_parser.is_send_by_messenger
&& 0 != context
.sql
.get_config_int(context, "mvbox_move")
.unwrap_or_else(|| 1)
{
dc_param_set_int(param, 'M' as i32, 1);
}
dc_job_add(context, 120, 0, (*param).packed, 0);
dc_param_unref(param);
}
}
}
i = i.wrapping_add(1)
}
}
if !mime_parser.message_kml.is_null() && chat_id > 9 as libc::c_uint {
let mut location_id_written = false;
let mut send_event = false;
if !mime_parser.message_kml.is_null()
&& chat_id > DC_CHAT_ID_LAST_SPECIAL as libc::c_uint
{
let newest_location_id: uint32_t = dc_save_locations(
context,
chat_id,
from_id,
(*mime_parser.message_kml).locations,
1,
);
if 0 != newest_location_id && 0 == hidden {
dc_set_msg_location_id(context, insert_msg_id, newest_location_id);
location_id_written = true;
send_event = true;
}
}
if !mime_parser.location_kml.is_null()
&& chat_id > DC_CHAT_ID_LAST_SPECIAL as libc::c_uint
{
let contact = dc_get_contact(context, from_id);
if !(*mime_parser.location_kml).addr.is_null()
&& !contact.is_null()
&& !(*contact).addr.is_null()
&& strcasecmp((*contact).addr, (*mime_parser.location_kml).addr) == 0
{
let newest_location_id = dc_save_locations(
context,
chat_id,
from_id,
(*mime_parser.location_kml).locations,
0,
);
if newest_location_id != 0 && hidden == 0 && !location_id_written {
dc_set_msg_location_id(context, insert_msg_id, newest_location_id);
}
send_event = true;
}
dc_contact_unref(contact);
}
if send_event {
context.call_cb(
Event::LOCATION_CHANGED,
from_id as uintptr_t,
0 as uintptr_t,
);
}
}
if 0 != add_delete_job && !created_db_entries.is_empty() {
dc_job_add(
context,
DC_JOB_DELETE_MSG_ON_IMAP,
created_db_entries[0].1 as i32,
0 as *const libc::c_char,
0,
);
}
}
}
}
free(rfc724_mid as *mut libc::c_void);
free(mime_in_reply_to as *mut libc::c_void);
free(mime_references as *mut libc::c_void);
dc_array_unref(to_ids);
if let Some(create_event_to_send) = create_event_to_send {
for (msg_id, insert_id) in &created_db_entries {
context.call_cb(create_event_to_send, *msg_id, *insert_id);
}
}
for (chat_id, msg_id) in &rr_event_to_send {
context.call_cb(Event::MSG_READ, *chat_id as uintptr_t, *msg_id as uintptr_t);
}
free(txt_raw as *mut libc::c_void);
}
/* ******************************************************************************
* Misc. Tools
******************************************************************************/
unsafe fn calc_timestamps(
context: &Context,
chat_id: uint32_t,
from_id: uint32_t,
message_timestamp: i64,
is_fresh_msg: libc::c_int,
sort_timestamp: *mut i64,
sent_timestamp: *mut i64,
rcvd_timestamp: *mut i64,
) {
*rcvd_timestamp = time();
*sent_timestamp = message_timestamp;
if *sent_timestamp > *rcvd_timestamp {
*sent_timestamp = *rcvd_timestamp
}
*sort_timestamp = message_timestamp;
if 0 != is_fresh_msg {
let last_msg_time: Option<i64> = context.sql.query_row_col(
context,
"SELECT MAX(timestamp) FROM msgs WHERE chat_id=? and from_id!=? AND timestamp>=?",
params![chat_id as i32, from_id as i32, *sort_timestamp],
0,
);
if let Some(last_msg_time) = last_msg_time {
if last_msg_time > 0 {
if *sort_timestamp <= last_msg_time {
*sort_timestamp = last_msg_time + 1;
}
}
}
}
if *sort_timestamp >= dc_smeared_time(context) {
*sort_timestamp = dc_create_smeared_timestamp(context);
}
}
/* the function tries extracts the group-id from the message and returns the
corresponding chat_id. If the chat_id is not existant, it is created.
If the message contains groups commands (name, profile image, changed members),
they are executed as well.
if no group-id could be extracted from the message, create_or_lookup_adhoc_group() is called
which tries to create or find out the chat_id by:
- is there a group with the same recipients? if so, use this (if there are multiple, use the most recent one)
- create an ad-hoc group based on the recipient list
So when the function returns, the caller has the group id matching the current
state of the group. */
unsafe fn create_or_lookup_group(
context: &Context,
mime_parser: &mut dc_mimeparser_t,
allow_creation: libc::c_int,
create_blocked: libc::c_int,
from_id: int32_t,
to_ids: *const dc_array_t,
ret_chat_id: *mut uint32_t,
ret_chat_id_blocked: *mut libc::c_int,
) {
let group_explicitly_left: libc::c_int;
let mut current_block: u64;
let mut chat_id: uint32_t = 0 as uint32_t;
let mut chat_id_blocked: libc::c_int = 0;
let mut chat_id_verified: libc::c_int = 0;
let mut grpid: *mut libc::c_char = 0 as *mut libc::c_char;
let mut grpname: *mut libc::c_char = 0 as *mut libc::c_char;
let mut i: libc::c_int;
let to_ids_cnt: libc::c_int = dc_array_get_cnt(to_ids) as libc::c_int;
let mut recreate_member_list: libc::c_int = 0;
let mut send_EVENT_CHAT_MODIFIED: libc::c_int = 0;
/* pointer somewhere into mime_parser, must not be freed */
let mut X_MrRemoveFromGrp: *mut libc::c_char = 0 as *mut libc::c_char;
/* pointer somewhere into mime_parser, must not be freed */
let mut X_MrAddToGrp: *mut libc::c_char = 0 as *mut libc::c_char;
let mut X_MrGrpNameChanged: libc::c_int = 0;
let mut X_MrGrpImageChanged: *const libc::c_char = 0 as *const libc::c_char;
let mut better_msg: *mut libc::c_char = 0 as *mut libc::c_char;
let mut failure_reason: *mut libc::c_char = 0 as *mut libc::c_char;
if mime_parser.is_system_message == 8 {
better_msg = dc_stock_system_msg(
context,
64,
0 as *const libc::c_char,
0 as *const libc::c_char,
from_id as uint32_t,
)
}
set_better_msg(mime_parser, &mut better_msg);
/* search the grpid in the header */
let mut field: *mut mailimf_field;
let mut optional_field: *mut mailimf_optional_field;
optional_field = dc_mimeparser_lookup_optional_field(
mime_parser,
b"Chat-Group-ID\x00" as *const u8 as *const libc::c_char,
);
if !optional_field.is_null() {
grpid = dc_strdup((*optional_field).fld_value)
}
if grpid.is_null() {
field = dc_mimeparser_lookup_field(mime_parser, "Message-ID");
if !field.is_null() && (*field).fld_type == MAILIMF_FIELD_MESSAGE_ID as libc::c_int {
let fld_message_id: *mut mailimf_message_id = (*field).fld_data.fld_message_id;
if !fld_message_id.is_null() {
grpid = dc_extract_grpid_from_rfc724_mid((*fld_message_id).mid_value)
}
}
if grpid.is_null() {
field = dc_mimeparser_lookup_field(mime_parser, "In-Reply-To");
if !field.is_null() && (*field).fld_type == MAILIMF_FIELD_IN_REPLY_TO as libc::c_int {
let fld_in_reply_to: *mut mailimf_in_reply_to = (*field).fld_data.fld_in_reply_to;
if !fld_in_reply_to.is_null() {
grpid = dc_extract_grpid_from_rfc724_mid_list((*fld_in_reply_to).mid_list)
}
}
if grpid.is_null() {
field = dc_mimeparser_lookup_field(mime_parser, "References");
if !field.is_null() && (*field).fld_type == MAILIMF_FIELD_REFERENCES as libc::c_int
{
let fld_references: *mut mailimf_references = (*field).fld_data.fld_references;
if !fld_references.is_null() {
grpid = dc_extract_grpid_from_rfc724_mid_list((*fld_references).mid_list)
}
}
if grpid.is_null() {
create_or_lookup_adhoc_group(
context,
mime_parser,
allow_creation,
create_blocked,
from_id,
to_ids,
&mut chat_id,
&mut chat_id_blocked,
);
current_block = 281803052766328415;
} else {
current_block = 18435049525520518667;
}
} else {
current_block = 18435049525520518667;
}
} else {
current_block = 18435049525520518667;
}
} else {
current_block = 18435049525520518667;
}
match current_block {
18435049525520518667 => {
optional_field = dc_mimeparser_lookup_optional_field(
mime_parser,
b"Chat-Group-Name\x00" as *const u8 as *const libc::c_char,
);
if !optional_field.is_null() {
grpname = dc_decode_header_words((*optional_field).fld_value)
}
optional_field = dc_mimeparser_lookup_optional_field(
mime_parser,
b"Chat-Group-Member-Removed\x00" as *const u8 as *const libc::c_char,
);
if !optional_field.is_null() {
X_MrRemoveFromGrp = (*optional_field).fld_value;
mime_parser.is_system_message = 5;
let left_group: libc::c_int =
(dc_lookup_contact_id_by_addr(context, X_MrRemoveFromGrp)
== from_id as libc::c_uint) as libc::c_int;
better_msg = dc_stock_system_msg(
context,
if 0 != left_group { 19 } else { 18 },
X_MrRemoveFromGrp,
0 as *const libc::c_char,
from_id as uint32_t,
)
} else {
optional_field = dc_mimeparser_lookup_optional_field(
mime_parser,
b"Chat-Group-Member-Added\x00" as *const u8 as *const libc::c_char,
);
if !optional_field.is_null() {
X_MrAddToGrp = (*optional_field).fld_value;
mime_parser.is_system_message = 4;
optional_field = dc_mimeparser_lookup_optional_field(
mime_parser,
b"Chat-Group-Image\x00" as *const u8 as *const libc::c_char,
);
if !optional_field.is_null() {
X_MrGrpImageChanged = (*optional_field).fld_value
}
better_msg = dc_stock_system_msg(
context,
17,
X_MrAddToGrp,
0 as *const libc::c_char,
from_id as uint32_t,
)
} else {
optional_field = dc_mimeparser_lookup_optional_field(
mime_parser,
b"Chat-Group-Name-Changed\x00" as *const u8 as *const libc::c_char,
);
if !optional_field.is_null() {
X_MrGrpNameChanged = 1;
mime_parser.is_system_message = 2;
better_msg = dc_stock_system_msg(
context,
15,
(*optional_field).fld_value,
grpname,
from_id as uint32_t,
)
} else {
optional_field = dc_mimeparser_lookup_optional_field(
mime_parser,
b"Chat-Group-Image\x00" as *const u8 as *const libc::c_char,
);
if !optional_field.is_null() {
X_MrGrpImageChanged = (*optional_field).fld_value;
mime_parser.is_system_message = 3;
better_msg = dc_stock_system_msg(
context,
if strcmp(
X_MrGrpImageChanged,
b"0\x00" as *const u8 as *const libc::c_char,
) == 0
{
33
} else {
16
},
0 as *const libc::c_char,
0 as *const libc::c_char,
from_id as uint32_t,
)
}
}
}
}
set_better_msg(mime_parser, &mut better_msg);
chat_id = dc_get_chat_id_by_grpid(
context,
grpid,
&mut chat_id_blocked,
&mut chat_id_verified,
);
if chat_id != 0 as libc::c_uint {
if 0 != chat_id_verified
&& 0 == check_verified_properties(
context,
mime_parser,
from_id as uint32_t,
to_ids,
&mut failure_reason,
)
{
dc_mimeparser_repl_msg_by_error(mime_parser, failure_reason);
}
}
if chat_id != 0 as libc::c_uint
&& 0 == dc_is_contact_in_chat(context, chat_id, from_id as uint32_t)
{
recreate_member_list = 1
}
/* check if the group does not exist but should be created */
group_explicitly_left = dc_is_group_explicitly_left(context, grpid);
let self_addr = context
.sql
.get_config(context, "configured_addr")
.unwrap_or_default();
if chat_id == 0 as libc::c_uint
&& 0 == dc_mimeparser_is_mailinglist_message(mime_parser)
&& !grpid.is_null()
&& !grpname.is_null()
&& X_MrRemoveFromGrp.is_null()
&& (0 == group_explicitly_left
|| !X_MrAddToGrp.is_null() && dc_addr_cmp(&self_addr, as_str(X_MrAddToGrp)))
{
/*otherwise, a pending "quit" message may pop up*/
/*re-create explicitly left groups only if ourself is re-added*/
let mut create_verified: libc::c_int = 0;
if !dc_mimeparser_lookup_field(mime_parser, "Chat-Verified").is_null() {
create_verified = 1;
if 0 == check_verified_properties(
context,
mime_parser,
from_id as uint32_t,
to_ids,
&mut failure_reason,
) {
dc_mimeparser_repl_msg_by_error(mime_parser, failure_reason);
}
}
if 0 == allow_creation {
current_block = 281803052766328415;
} else {
chat_id = create_group_record(
context,
grpid,
grpname,
create_blocked,
create_verified,
);
chat_id_blocked = create_blocked;
recreate_member_list = 1;
current_block = 200744462051969938;
}
} else {
current_block = 200744462051969938;
}
match current_block {
281803052766328415 => {}
_ => {
/* again, check chat_id */
if chat_id <= 9 as libc::c_uint {
chat_id = 0 as uint32_t;
if 0 != group_explicitly_left {
chat_id = 3 as uint32_t
} else {
create_or_lookup_adhoc_group(
context,
mime_parser,
allow_creation,
create_blocked,
from_id,
to_ids,
&mut chat_id,
&mut chat_id_blocked,
);
}
} else {
if !X_MrAddToGrp.is_null() || !X_MrRemoveFromGrp.is_null() {
recreate_member_list = 1
} else if 0 != X_MrGrpNameChanged
&& !grpname.is_null()
&& strlen(grpname) < 200
{
if sql::execute(
context,
&context.sql,
"UPDATE chats SET name=? WHERE id=?;",
params![as_str(grpname), chat_id as i32],
)
.is_ok()
{
context.call_cb(Event::CHAT_MODIFIED, chat_id as uintptr_t, 0);
}
}
if !X_MrGrpImageChanged.is_null() {
let mut ok = 0;
let mut grpimage = 0 as *mut libc::c_char;
if strcmp(
X_MrGrpImageChanged,
b"0\x00" as *const u8 as *const libc::c_char,
) == 0
{
ok = 1
} else {
let mut i_0: libc::c_int = 0;
while (i_0 as libc::c_uint) < carray_count(mime_parser.parts) {
let part: *mut dc_mimepart_t =
carray_get(mime_parser.parts, i_0 as libc::c_uint)
as *mut dc_mimepart_t;
if (*part).type_0 == 20 {
grpimage = dc_param_get(
(*part).param,
'f' as i32,
0 as *const libc::c_char,
);
ok = 1
}
i_0 += 1
}
}
if 0 != ok {
let chat: *mut Chat = dc_chat_new(context);
info!(
context,
0,
"New group image set to {}.",
if !grpimage.is_null() {
"DELETED".to_string()
} else {
to_string(grpimage)
},
);
dc_chat_load_from_db(chat, chat_id);
dc_param_set((*chat).param, 'i' as i32, grpimage);
dc_chat_update_param(chat);
dc_chat_unref(chat);
free(grpimage as *mut libc::c_void);
send_EVENT_CHAT_MODIFIED = 1
}
}
if 0 != recreate_member_list {
let skip = if !X_MrRemoveFromGrp.is_null() {
X_MrRemoveFromGrp
} else {
0 as *mut libc::c_char
};
sql::execute(
context,
&context.sql,
"DELETE FROM chats_contacts WHERE chat_id=?;",
params![chat_id as i32],
);
if skip.is_null() || !dc_addr_cmp(&self_addr, as_str(skip)) {
dc_add_to_chat_contacts_table(context, chat_id, 1);
}
if from_id > 9 {
if !dc_addr_equals_contact(context, &self_addr, from_id as u32)
&& (skip.is_null()
|| !dc_addr_equals_contact(
context,
to_string(skip),
from_id as u32,
))
{
dc_add_to_chat_contacts_table(
context,
chat_id,
from_id as uint32_t,
);
}
}
i = 0;
while i < to_ids_cnt {
let to_id = dc_array_get_id(to_ids, i as size_t);
if !dc_addr_equals_contact(context, &self_addr, to_id)
&& (skip.is_null()
|| !dc_addr_equals_contact(context, to_string(skip), to_id))
{
dc_add_to_chat_contacts_table(context, chat_id, to_id);
}
i += 1
}
send_EVENT_CHAT_MODIFIED = 1;
dc_reset_gossiped_timestamp(context, chat_id);
}
if 0 != send_EVENT_CHAT_MODIFIED {
context.call_cb(
Event::CHAT_MODIFIED,
chat_id as uintptr_t,
0 as uintptr_t,
);
}
/* check the number of receivers -
the only critical situation is if the user hits "Reply" instead of "Reply all" in a non-messenger-client */
if to_ids_cnt == 1 && mime_parser.is_send_by_messenger == 0 {
let is_contact_cnt: libc::c_int =
dc_get_chat_contact_cnt(context, chat_id);
if is_contact_cnt > 3 {
/* to_ids_cnt==1 may be "From: A, To: B, SELF" as SELF is not counted in to_ids_cnt. So everything up to 3 is no error. */
chat_id = 0 as uint32_t;
create_or_lookup_adhoc_group(
context,
mime_parser,
allow_creation,
create_blocked,
from_id,
to_ids,
&mut chat_id,
&mut chat_id_blocked,
);
}
}
}
}
}
}
_ => {}
}
free(grpid as *mut libc::c_void);
free(grpname as *mut libc::c_void);
free(better_msg as *mut libc::c_void);
free(failure_reason as *mut libc::c_void);
if !ret_chat_id.is_null() {
*ret_chat_id = chat_id
}
if !ret_chat_id_blocked.is_null() {
*ret_chat_id_blocked = if 0 != chat_id { chat_id_blocked } else { 0 }
};
}
/* ******************************************************************************
* Handle groups for received messages
******************************************************************************/
unsafe fn create_or_lookup_adhoc_group(
context: &Context,
mime_parser: &dc_mimeparser_t,
allow_creation: libc::c_int,
create_blocked: libc::c_int,
from_id: int32_t,
to_ids: *const dc_array_t,
ret_chat_id: *mut uint32_t,
ret_chat_id_blocked: *mut libc::c_int,
) {
let current_block: u64;
/* if we're here, no grpid was found, check there is an existing ad-hoc
group matching the to-list or if we can create one */
let mut member_ids: *mut dc_array_t = 0 as *mut dc_array_t;
let mut chat_id: uint32_t = 0 as uint32_t;
let mut chat_id_blocked = 0;
let mut i;
let mut chat_ids: *mut dc_array_t = 0 as *mut dc_array_t;
let mut chat_ids_str: *mut libc::c_char = 0 as *mut libc::c_char;
let mut grpid: *mut libc::c_char = 0 as *mut libc::c_char;
let mut grpname: *mut libc::c_char = 0 as *mut libc::c_char;
/* build member list from the given ids */
if !(dc_array_get_cnt(to_ids) == 0 || 0 != dc_mimeparser_is_mailinglist_message(mime_parser)) {
/* too few contacts or a mailinglist */
member_ids = dc_array_duplicate(to_ids);
if !dc_array_search_id(member_ids, from_id as uint32_t, 0 as *mut size_t) {
dc_array_add_id(member_ids, from_id as uint32_t);
}
if !dc_array_search_id(member_ids, 1 as uint32_t, 0 as *mut size_t) {
dc_array_add_id(member_ids, 1 as uint32_t);
}
if !(dc_array_get_cnt(member_ids) < 3) {
/* too few contacts given */
chat_ids = search_chat_ids_by_contact_ids(context, member_ids);
if dc_array_get_cnt(chat_ids) > 0 {
chat_ids_str = dc_array_get_string(chat_ids, b",\x00" as *const u8 as *const _);
let res = context.sql.query_row(
format!(
"SELECT c.id, c.blocked FROM chats c \
LEFT JOIN msgs m ON m.chat_id=c.id WHERE c.id IN({}) ORDER BY m.timestamp DESC, m.id DESC LIMIT 1;",
as_str(chat_ids_str),
),
params![],
|row| {
Ok((row.get::<_, i32>(0)?, row.get::<_, i32>(1)?))
}
);
if let Ok((id, id_blocked)) = res {
chat_id = id as u32;
chat_id_blocked = id_blocked;
/* success, chat found */
current_block = 11334989263469503965;
} else {
current_block = 11194104282611034094;
}
} else {
current_block = 11194104282611034094;
}
match current_block {
11334989263469503965 => {}
_ => {
if !(0 == allow_creation) {
/* we do not check if the message is a reply to another group, this may result in
chats with unclear member list. instead we create a new group in the following lines ... */
/* create a new ad-hoc group
- there is no need to check if this group exists; otherwise we would have catched it above */
grpid = create_adhoc_grp_id(context, member_ids);
if !grpid.is_null() {
if !mime_parser.subject.is_null()
&& 0 != *mime_parser.subject.offset(0isize) as libc::c_int
{
grpname = dc_strdup(mime_parser.subject)
} else {
grpname = dc_stock_str_repl_int(
context,
4,
dc_array_get_cnt(member_ids) as libc::c_int,
)
}
chat_id =
create_group_record(context, grpid, grpname, create_blocked, 0);
chat_id_blocked = create_blocked;
i = 0;
while i < dc_array_get_cnt(member_ids) {
dc_add_to_chat_contacts_table(
context,
chat_id,
dc_array_get_id(member_ids, i as size_t),
);
i += 1
}
context.call_cb(
Event::CHAT_MODIFIED,
chat_id as uintptr_t,
0 as uintptr_t,
);
}
}
}
}
}
}
dc_array_unref(member_ids);
dc_array_unref(chat_ids);
free(chat_ids_str as *mut libc::c_void);
free(grpid as *mut libc::c_void);
free(grpname as *mut libc::c_void);
if !ret_chat_id.is_null() {
*ret_chat_id = chat_id
}
if !ret_chat_id_blocked.is_null() {
*ret_chat_id_blocked = chat_id_blocked
};
}
fn create_group_record(
context: &Context,
grpid: *const libc::c_char,
grpname: *const libc::c_char,
create_blocked: libc::c_int,
create_verified: libc::c_int,
) -> u32 {
if sql::execute(
context,
&context.sql,
"INSERT INTO chats (type, name, grpid, blocked) VALUES(?, ?, ?, ?);",
params![
if 0 != create_verified { 130 } else { 120 },
as_str(grpname),
as_str(grpid),
create_blocked,
],
)
.is_err()
{
return 0;
}
sql::get_rowid(context, &context.sql, "chats", "grpid", as_str(grpid))
}
unsafe fn create_adhoc_grp_id(context: &Context, member_ids: *mut dc_array_t) -> *mut libc::c_char {
/* algorithm:
- sort normalized, lowercased, e-mail addresses alphabetically
- put all e-mail addresses into a single string, separate the addresss by a single comma
- sha-256 this string (without possibly terminating null-characters)
- encode the first 64 bits of the sha-256 output as lowercase hex (results in 16 characters from the set [0-9a-f])
*/
let member_ids_str = dc_array_get_string(member_ids, b",\x00" as *const u8 as *const _);
let member_cs = context
.sql
.get_config(context, "configured_addr")
.unwrap_or_else(|| "no-self".to_string())
.to_lowercase();
let members = context
.sql
.query_map(
format!(
"SELECT addr FROM contacts WHERE id IN({}) AND id!=1",
as_str(member_ids_str)
),
params![],
|row| row.get::<_, String>(0),
|rows| {
let mut addrs = rows.collect::<Result<Vec<_>, _>>()?;
addrs.sort();
let mut acc = member_cs.clone();
for addr in &addrs {
acc += ",";
acc += &addr.to_lowercase();
}
Ok(acc)
},
)
.unwrap_or_else(|_| member_cs);
free(member_ids_str as *mut libc::c_void);
hex_hash(&members) as *mut _
}
fn hex_hash(s: impl AsRef<str>) -> *const libc::c_char {
let bytes = s.as_ref().as_bytes();
let result = Sha256::digest(bytes);
let result_hex = hex::encode(&result[..8]);
let result_cstring = to_cstring(result_hex);
unsafe { strdup(result_cstring.as_ptr()) }
}
unsafe fn search_chat_ids_by_contact_ids(
context: &Context,
unsorted_contact_ids: *const dc_array_t,
) -> *mut dc_array_t {
/* searches chat_id's by the given contact IDs, may return zero, one or more chat_id's */
let contact_ids: *mut dc_array_t = dc_array_new(23 as size_t);
let mut contact_ids_str: *mut libc::c_char = 0 as *mut libc::c_char;
let chat_ids: *mut dc_array_t = dc_array_new(23 as size_t);
/* copy array, remove duplicates and SELF, sort by ID */
let mut i: libc::c_int;
let iCnt: libc::c_int = dc_array_get_cnt(unsorted_contact_ids) as libc::c_int;
if !(iCnt <= 0) {
i = 0;
while i < iCnt {
let curr_id: uint32_t = dc_array_get_id(unsorted_contact_ids, i as size_t);
if curr_id != 1 as libc::c_uint
&& !dc_array_search_id(contact_ids, curr_id, 0 as *mut size_t)
{
dc_array_add_id(contact_ids, curr_id);
}
i += 1
}
if !(dc_array_get_cnt(contact_ids) == 0) {
dc_array_sort_ids(contact_ids);
contact_ids_str =
dc_array_get_string(contact_ids, b",\x00" as *const u8 as *const libc::c_char);
context.sql.query_map(
format!(
"SELECT DISTINCT cc.chat_id, cc.contact_id FROM chats_contacts cc LEFT JOIN chats c ON c.id=cc.chat_id WHERE cc.chat_id IN(SELECT chat_id FROM chats_contacts WHERE contact_id IN({})) AND c.type=120 AND cc.contact_id!=1 ORDER BY cc.chat_id, cc.contact_id;",
as_str(contact_ids_str)
),
params![],
|row| Ok((row.get::<_, i32>(0)?, row.get::<_, i32>(1)?)),
|rows| {
let mut last_chat_id = 0;
let mut matches = 0;
let mut mismatches = 0;
for row in rows {
let (chat_id, contact_id) = row?;
if chat_id as u32 != last_chat_id {
if matches == dc_array_get_cnt(contact_ids) && mismatches == 0 {
dc_array_add_id(chat_ids, last_chat_id);
}
last_chat_id = chat_id as u32;
matches = 0;
mismatches = 0;
}
if contact_id as u32 == dc_array_get_id(contact_ids, matches as size_t) {
matches += 1;
} else {
mismatches += 1;
}
}
if matches == dc_array_get_cnt(contact_ids) && mismatches == 0 {
dc_array_add_id(chat_ids, last_chat_id);
}
Ok(())
}
).unwrap(); // TODO: better error handling
}
}
free(contact_ids_str as *mut libc::c_void);
dc_array_unref(contact_ids);
chat_ids
}
unsafe fn check_verified_properties(
context: &Context,
mimeparser: &dc_mimeparser_t,
from_id: uint32_t,
to_ids: *const dc_array_t,
failure_reason: *mut *mut libc::c_char,
) -> libc::c_int {
let contact = dc_contact_new(context);
let verify_fail = |reason: String| {
*failure_reason =
strdup(to_cstring(format!("{}. See \"Info\" for details.", reason)).as_ptr());
warn!(context, 0, "{}", reason);
};
let cleanup = || {
dc_contact_unref(contact);
};
if !dc_contact_load_from_db(contact, &context.sql, from_id) {
verify_fail("Internal Error; cannot load contact".into());
cleanup();
return 0;
}
if 0 == mimeparser.e2ee_helper.encrypted {
verify_fail("This message is not encrypted".into());
cleanup();
return 0;
}
// ensure, the contact is verified
// and the message is signed with a verified key of the sender.
// this check is skipped for SELF as there is no proper SELF-peerstate
// and results in group-splits otherwise.
if from_id != 1 {
let peerstate = Peerstate::from_addr(context, &context.sql, as_str((*contact).addr));
if peerstate.is_none() || dc_contact_is_verified_ex(contact, peerstate.as_ref()) != 2 {
verify_fail("The sender of this message is not verified.".into());
cleanup();
return 0;
}
if let Some(peerstate) = peerstate {
if !peerstate.has_verified_key(&mimeparser.e2ee_helper.signatures) {
verify_fail("The message was sent with non-verified encryption.".into());
cleanup();
return 0;
}
}
}
let to_ids_str_c = dc_array_get_string(to_ids, b",\x00" as *const u8 as *const libc::c_char);
let to_ids_str = to_string(to_ids_str_c);
free(to_ids_str_c as *mut libc::c_void);
let ok = context
.sql
.query_map(
format!(
"SELECT c.addr, LENGTH(ps.verified_key_fingerprint) FROM contacts c \
LEFT JOIN acpeerstates ps ON c.addr=ps.addr WHERE c.id IN({}) ",
&to_ids_str,
),
params![],
|row| Ok((row.get::<_, String>(0)?, row.get::<_, i32>(1)?)),
|rows| {
for row in rows {
let (to_addr, mut is_verified) = row?;
let mut peerstate = Peerstate::from_addr(context, &context.sql, &to_addr);
if mimeparser.e2ee_helper.gossipped_addr.contains(&to_addr)
&& peerstate.is_some()
{
let peerstate = peerstate.as_mut().unwrap();
// if we're here, we know the gossip key is verified:
// - use the gossip-key as verified-key if there is no verified-key
// - OR if the verified-key does not match public-key or gossip-key
// (otherwise a verified key can _only_ be updated through QR scan which might be annoying,
// see https://github.com/nextleap-project/countermitm/issues/46 for a discussion about this point)
if 0 == is_verified
|| peerstate.verified_key_fingerprint
!= peerstate.public_key_fingerprint
&& peerstate.verified_key_fingerprint
!= peerstate.gossip_key_fingerprint
{
info!(
context,
0,
"{} has verfied {}.",
as_str((*contact).addr),
to_addr,
);
let fp = peerstate.gossip_key_fingerprint.clone();
if let Some(fp) = fp {
peerstate.set_verified(0, &fp, 2);
peerstate.save_to_db(&context.sql, false);
is_verified = 1;
}
}
}
if 0 == is_verified {
verify_fail(format!(
"{} is not a member of this verified group",
to_addr
));
cleanup();
return Err(failure::format_err!("not a valid memember").into());
}
}
Ok(())
},
)
.is_ok(); // TODO: Better default
cleanup();
ok as libc::c_int
}
unsafe fn set_better_msg(mime_parser: &dc_mimeparser_t, better_msg: *mut *mut libc::c_char) {
if !(*better_msg).is_null() && carray_count((*mime_parser).parts) > 0 as libc::c_uint {
let mut part: *mut dc_mimepart_t =
carray_get(mime_parser.parts, 0 as libc::c_uint) as *mut dc_mimepart_t;
if (*part).type_0 == 10 {
free((*part).msg as *mut libc::c_void);
(*part).msg = *better_msg;
*better_msg = 0 as *mut libc::c_char
}
};
}
unsafe fn dc_is_reply_to_known_message(
context: &Context,
mime_parser: &dc_mimeparser_t,
) -> libc::c_int {
/* check if the message is a reply to a known message; the replies are identified by the Message-ID from
`In-Reply-To`/`References:` (to support non-Delta-Clients) or from `Chat-Predecessor:` (Delta clients, see comment in dc_chat.c) */
let optional_field = dc_mimeparser_lookup_optional_field(
mime_parser,
b"Chat-Predecessor\x00" as *const u8 as *const libc::c_char,
);
if !optional_field.is_null() {
if 0 != is_known_rfc724_mid(context, (*optional_field).fld_value) {
return 1;
}
}
let field = dc_mimeparser_lookup_field(mime_parser, "In-Reply-To");
if !field.is_null() && (*field).fld_type == MAILIMF_FIELD_IN_REPLY_TO as libc::c_int {
let fld_in_reply_to: *mut mailimf_in_reply_to = (*field).fld_data.fld_in_reply_to;
if !fld_in_reply_to.is_null() {
if 0 != is_known_rfc724_mid_in_list(
context,
(*(*field).fld_data.fld_in_reply_to).mid_list,
) {
return 1;
}
}
}
let field = dc_mimeparser_lookup_field(mime_parser, "References");
if !field.is_null() && (*field).fld_type == MAILIMF_FIELD_REFERENCES as libc::c_int {
let fld_references: *mut mailimf_references = (*field).fld_data.fld_references;
if !fld_references.is_null() {
if 0 != is_known_rfc724_mid_in_list(
context,
(*(*field).fld_data.fld_references).mid_list,
) {
return 1;
}
}
}
return 0;
}
unsafe fn is_known_rfc724_mid_in_list(context: &Context, mid_list: *const clist) -> libc::c_int {
if !mid_list.is_null() {
let mut cur: *mut clistiter;
cur = (*mid_list).first;
while !cur.is_null() {
if 0 != is_known_rfc724_mid(
context,
(if !cur.is_null() {
(*cur).data
} else {
0 as *mut libc::c_void
}) as *const libc::c_char,
) {
return 1;
}
cur = if !cur.is_null() {
(*cur).next
} else {
0 as *mut clistcell
}
}
}
return 0;
}
/* ******************************************************************************
* Check if a message is a reply to a known message (messenger or non-messenger)
******************************************************************************/
fn is_known_rfc724_mid(context: &Context, rfc724_mid: *const libc::c_char) -> libc::c_int {
if rfc724_mid.is_null() {
return 0;
}
context
.sql
.exists(
"SELECT m.id FROM msgs m \
LEFT JOIN chats c ON m.chat_id=c.id \
WHERE m.rfc724_mid=? \
AND m.chat_id>9 AND c.blocked=0;",
params![as_str(rfc724_mid)],
)
.unwrap_or_default() as libc::c_int
}
unsafe fn dc_is_reply_to_messenger_message(
context: &Context,
mime_parser: &dc_mimeparser_t,
) -> libc::c_int {
/* function checks, if the message defined by mime_parser references a message send by us from Delta Chat.
This is similar to is_reply_to_known_message() but
- checks also if any of the referenced IDs are send by a messenger
- it is okay, if the referenced messages are moved to trash here
- no check for the Chat-* headers (function is only called if it is no messenger message itself) */
let field = dc_mimeparser_lookup_field(mime_parser, "In-Reply-To");
if !field.is_null() && (*field).fld_type == MAILIMF_FIELD_IN_REPLY_TO as libc::c_int {
let fld_in_reply_to: *mut mailimf_in_reply_to = (*field).fld_data.fld_in_reply_to;
if !fld_in_reply_to.is_null() {
if 0 != is_msgrmsg_rfc724_mid_in_list(
context,
(*(*field).fld_data.fld_in_reply_to).mid_list,
) {
return 1;
}
}
}
let field = dc_mimeparser_lookup_field(mime_parser, "References");
if !field.is_null() && (*field).fld_type == MAILIMF_FIELD_REFERENCES as libc::c_int {
let fld_references: *mut mailimf_references = (*field).fld_data.fld_references;
if !fld_references.is_null() {
if 0 != is_msgrmsg_rfc724_mid_in_list(
context,
(*(*field).fld_data.fld_references).mid_list,
) {
return 1;
}
}
}
return 0;
}
unsafe fn is_msgrmsg_rfc724_mid_in_list(context: &Context, mid_list: *const clist) -> libc::c_int {
if !mid_list.is_null() {
let mut cur: *mut clistiter = (*mid_list).first;
while !cur.is_null() {
if 0 != is_msgrmsg_rfc724_mid(
context,
(if !cur.is_null() {
(*cur).data
} else {
0 as *mut libc::c_void
}) as *const libc::c_char,
) {
return 1;
}
cur = if !cur.is_null() {
(*cur).next
} else {
0 as *mut clistcell
}
}
}
return 0;
}
/* ******************************************************************************
* Check if a message is a reply to any messenger message
******************************************************************************/
fn is_msgrmsg_rfc724_mid(context: &Context, rfc724_mid: *const libc::c_char) -> libc::c_int {
if rfc724_mid.is_null() {
return 0;
}
context
.sql
.exists(
"SELECT id FROM msgs WHERE rfc724_mid=? AND msgrmsg!=0 AND chat_id>9;",
params![as_str(rfc724_mid)],
)
.unwrap_or_default() as libc::c_int
}
unsafe fn dc_add_or_lookup_contacts_by_address_list(
context: &Context,
adr_list: *const mailimf_address_list,
origin: libc::c_int,
ids: *mut dc_array_t,
check_self: *mut libc::c_int,
) {
if adr_list.is_null() {
return;
}
let mut cur: *mut clistiter = (*(*adr_list).ad_list).first;
while !cur.is_null() {
let adr: *mut mailimf_address = (if !cur.is_null() {
(*cur).data
} else {
0 as *mut libc::c_void
}) as *mut mailimf_address;
if !adr.is_null() {
if (*adr).ad_type == MAILIMF_ADDRESS_MAILBOX as libc::c_int {
let mb: *mut mailimf_mailbox = (*adr).ad_data.ad_mailbox;
if !mb.is_null() {
add_or_lookup_contact_by_addr(
context,
(*mb).mb_display_name,
(*mb).mb_addr_spec,
origin,
ids,
check_self,
);
}
} else if (*adr).ad_type == MAILIMF_ADDRESS_GROUP as libc::c_int {
let group: *mut mailimf_group = (*adr).ad_data.ad_group;
if !group.is_null() && !(*group).grp_mb_list.is_null() {
dc_add_or_lookup_contacts_by_mailbox_list(
context,
(*group).grp_mb_list,
origin,
ids,
check_self,
);
}
}
}
cur = if !cur.is_null() {
(*cur).next
} else {
0 as *mut clistcell
}
}
}
unsafe fn dc_add_or_lookup_contacts_by_mailbox_list(
context: &Context,
mb_list: *const mailimf_mailbox_list,
origin: libc::c_int,
ids: *mut dc_array_t,
check_self: *mut libc::c_int,
) {
if mb_list.is_null() {
return;
}
let mut cur: *mut clistiter = (*(*mb_list).mb_list).first;
while !cur.is_null() {
let mb: *mut mailimf_mailbox = (if !cur.is_null() {
(*cur).data
} else {
0 as *mut libc::c_void
}) as *mut mailimf_mailbox;
if !mb.is_null() {
add_or_lookup_contact_by_addr(
context,
(*mb).mb_display_name,
(*mb).mb_addr_spec,
origin,
ids,
check_self,
);
}
cur = if !cur.is_null() {
(*cur).next
} else {
0 as *mut clistcell
}
}
}
/* ******************************************************************************
* Add contacts to database on receiving messages
******************************************************************************/
unsafe fn add_or_lookup_contact_by_addr(
context: &Context,
display_name_enc: *const libc::c_char,
addr_spec: *const libc::c_char,
origin: libc::c_int,
ids: *mut dc_array_t,
mut check_self: *mut libc::c_int,
) {
/* is addr_spec equal to SELF? */
let mut dummy: libc::c_int = 0;
if check_self.is_null() {
check_self = &mut dummy
}
if addr_spec.is_null() {
return;
}
*check_self = 0;
let self_addr = context
.sql
.get_config(context, "configured_addr")
.unwrap_or_default();
if dc_addr_cmp(self_addr, as_str(addr_spec)) {
*check_self = 1;
}
if 0 != *check_self {
return;
}
/* add addr_spec if missing, update otherwise */
let mut display_name_dec = 0 as *mut libc::c_char;
if !display_name_enc.is_null() {
display_name_dec = dc_decode_header_words(display_name_enc);
dc_normalize_name(display_name_dec);
}
/*can be NULL*/
let row_id = dc_add_or_lookup_contact(
context,
display_name_dec,
addr_spec,
origin,
0 as *mut libc::c_int,
);
free(display_name_dec as *mut libc::c_void);
if 0 != row_id {
if !dc_array_search_id(ids, row_id, 0 as *mut size_t) {
dc_array_add_id(ids, row_id);
}
};
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_hex_hash() {
let data = "hello world";
let res_c = hex_hash(data);
let res = to_string(res_c);
assert_eq!(res, "b94d27b9934d3e08");
}
}
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