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refactor(mimeparser): some more sanity

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This commit is contained in:
dignifiedquire
2019-09-14 23:24:15 +02:00
committed by holger krekel
parent 0bf3d20e07
commit 0346dd15d9
4 changed files with 1178 additions and 1349 deletions
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2263
src/dc_mimeparser.rs
View File

File diff suppressed because it is too large Load Diff

192
src/dc_receive_imf.rs
View File

@@ -63,7 +63,8 @@ pub unsafe fn dc_receive_imf(
// somewhen, I did not found out anything that speaks against this approach yet)
let body = std::slice::from_raw_parts(imf_raw_not_terminated as *const u8, imf_raw_bytes);
let mut mime_parser = dc_mimeparser_parse(context, body);
let mut mime_parser = MimeParser::new(context);
mime_parser.parse(body);
if mime_parser.header.is_empty() {
// Error - even adding an empty record won't help as we do not know the message ID
@@ -149,7 +150,7 @@ pub unsafe fn dc_receive_imf(
);
if 0 != check_self {
incoming = 0;
if 0 != dc_mimeparser_sender_equals_recipient(&mime_parser) {
if mime_parser.sender_equals_recipient() {
from_id = DC_CONTACT_ID_SELF;
}
} else if from_list.len() >= 1 {
@@ -183,7 +184,7 @@ pub unsafe fn dc_receive_imf(
}
// Add parts
if dc_mimeparser_get_last_nonmeta(&mut mime_parser).is_some() {
if mime_parser.get_last_nonmeta().is_some() {
if let Err(err) = add_parts(
context,
&mut mime_parser,
@@ -278,7 +279,7 @@ pub unsafe fn dc_receive_imf(
unsafe fn add_parts(
context: &Context,
mut mime_parser: &mut dc_mimeparser_t,
mut mime_parser: &mut MimeParser,
imf_raw_not_terminated: *const libc::c_char,
imf_raw_bytes: libc::size_t,
incoming: i32,
@@ -414,7 +415,7 @@ unsafe fn add_parts(
*to_id = 1;
// handshake messages must be processed _before_ chats are created
// (eg. contacs may be marked as verified)
if !dc_mimeparser_lookup_field(mime_parser, "Secure-Join").is_null() {
if mime_parser.lookup_field("Secure-Join").is_some() {
// avoid discarding by show_emails setting
msgrmsg = 1;
*chat_id = 0;
@@ -463,7 +464,7 @@ unsafe fn add_parts(
if *chat_id == 0 {
// check if the message belongs to a mailing list
if dc_mimeparser_is_mailinglist_message(mime_parser) {
if mime_parser.is_mailinglist_message() {
*chat_id = 3;
info!(context, "Message belongs to a mailing list and is ignored.",);
}
@@ -656,7 +657,7 @@ unsafe fn add_parts(
}
}
}
if part.type_0 == Viewtype::Text {
if part.typ == Viewtype::Text {
let msg_raw =
CString::yolo(part.msg_raw.as_ref().cloned().unwrap_or_default());
let subject_c = CString::yolo(
@@ -687,7 +688,7 @@ unsafe fn add_parts(
sort_timestamp,
*sent_timestamp,
rcvd_timestamp,
part.type_0,
part.typ,
state,
msgrmsg,
part.msg.as_ref().map_or("", String::as_str),
@@ -762,14 +763,13 @@ unsafe fn add_parts(
}
/// Lookup a mime field given its name and type.
unsafe fn lookup_field(
parser: &dc_mimeparser_t,
name: &str,
typ: u32,
) -> Option<*const mailimf_field> {
let field = dc_mimeparser_lookup_field(parser, name);
if !field.is_null() && (*field).fld_type == typ as libc::c_int {
Some(field)
fn lookup_field(parser: &MimeParser, name: &str, typ: u32) -> Option<*const mailimf_field> {
if let Some(field) = parser.lookup_field(name) {
if unsafe { (*field).fld_type } == typ as libc::c_int {
Some(field)
} else {
None
}
} else {
None
}
@@ -778,7 +778,7 @@ unsafe fn lookup_field(
// Handle reports (mainly MDNs)
unsafe fn handle_reports(
context: &Context,
mime_parser: &dc_mimeparser_t,
mime_parser: &MimeParser,
from_id: u32,
sent_timestamp: i64,
rr_event_to_send: &mut Vec<(u32, u32)>,
@@ -941,7 +941,7 @@ unsafe fn handle_reports(
fn save_locations(
context: &Context,
mime_parser: &dc_mimeparser_t,
mime_parser: &MimeParser,
chat_id: u32,
from_id: u32,
insert_msg_id: u32,
@@ -1039,7 +1039,7 @@ unsafe fn calc_timestamps(
#[allow(non_snake_case)]
unsafe fn create_or_lookup_group(
context: &Context,
mime_parser: &mut dc_mimeparser_t,
mime_parser: &mut MimeParser,
allow_creation: libc::c_int,
create_blocked: Blocked,
from_id: u32,
@@ -1062,16 +1062,13 @@ unsafe fn create_or_lookup_group(
let mut X_MrGrpNameChanged = 0;
let mut X_MrGrpImageChanged = "".to_string();
let mut better_msg: String = From::from("");
let mut failure_reason = std::ptr::null_mut();
let cleanup = |grpname: *mut libc::c_char,
failure_reason: *mut libc::c_char,
ret_chat_id: *mut u32,
ret_chat_id_blocked: &mut Blocked,
chat_id: u32,
chat_id_blocked: Blocked| {
free(grpname.cast());
free(failure_reason.cast());
if !ret_chat_id.is_null() {
*ret_chat_id = chat_id;
@@ -1089,10 +1086,10 @@ unsafe fn create_or_lookup_group(
}
set_better_msg(mime_parser, &better_msg);
let optional_field = dc_mimeparser_lookup_optional_field(mime_parser, "Chat-Group-ID");
if !optional_field.is_null() {
grpid = to_string((*optional_field).fld_value)
if let Some(optional_field) = mime_parser.lookup_optional_field("Chat-Group-ID") {
grpid = to_string((*optional_field).fld_value);
}
if grpid.is_empty() {
if let Some(field) = lookup_field(mime_parser, "Message-ID", MAILIMF_FIELD_MESSAGE_ID) {
let fld_message_id = (*field).fld_data.fld_message_id;
@@ -1141,7 +1138,6 @@ unsafe fn create_or_lookup_group(
);
cleanup(
grpname,
failure_reason,
ret_chat_id,
ret_chat_id_blocked,
chat_id,
@@ -1153,13 +1149,10 @@ unsafe fn create_or_lookup_group(
}
}
let optional_field = dc_mimeparser_lookup_optional_field(mime_parser, "Chat-Group-Name");
if !optional_field.is_null() {
grpname = dc_decode_header_words((*optional_field).fld_value)
if let Some(optional_field) = mime_parser.lookup_optional_field("Chat-Group-Name") {
grpname = dc_decode_header_words((*optional_field).fld_value);
}
let optional_field =
dc_mimeparser_lookup_optional_field(mime_parser, "Chat-Group-Member-Removed");
if !optional_field.is_null() {
if let Some(optional_field) = mime_parser.lookup_optional_field("Chat-Group-Member-Removed") {
X_MrRemoveFromGrp = (*optional_field).fld_value;
mime_parser.is_system_message = DC_CMD_MEMBER_REMOVED_FROM_GROUP;
let left_group = (Contact::lookup_id_by_addr(context, as_str(X_MrRemoveFromGrp))
@@ -1175,14 +1168,10 @@ unsafe fn create_or_lookup_group(
from_id as u32,
)
} else {
let optional_field =
dc_mimeparser_lookup_optional_field(mime_parser, "Chat-Group-Member-Added");
if !optional_field.is_null() {
if let Some(optional_field) = mime_parser.lookup_optional_field("Chat-Group-Member-Added") {
X_MrAddToGrp = (*optional_field).fld_value;
mime_parser.is_system_message = DC_CMD_MEMBER_ADDED_TO_GROUP;
let optional_field =
dc_mimeparser_lookup_optional_field(mime_parser, "Chat-Group-Image");
if !optional_field.is_null() {
if let Some(optional_field) = mime_parser.lookup_optional_field("Chat-Group-Image") {
// fld_value is a pointer somewhere into mime_parser, must not be freed
X_MrGrpImageChanged = as_str((*optional_field).fld_value).to_string();
}
@@ -1193,9 +1182,9 @@ unsafe fn create_or_lookup_group(
from_id as u32,
)
} else {
let optional_field =
dc_mimeparser_lookup_optional_field(mime_parser, "Chat-Group-Name-Changed");
if !optional_field.is_null() {
if let Some(optional_field) =
mime_parser.lookup_optional_field("Chat-Group-Name-Changed")
{
X_MrGrpNameChanged = 1;
mime_parser.is_system_message = DC_CMD_GROUPNAME_CHANGED;
better_msg = context.stock_system_msg(
@@ -1205,9 +1194,8 @@ unsafe fn create_or_lookup_group(
from_id as u32,
)
} else {
let optional_field =
dc_mimeparser_lookup_optional_field(mime_parser, "Chat-Group-Image");
if !optional_field.is_null() {
if let Some(optional_field) = mime_parser.lookup_optional_field("Chat-Group-Image")
{
// fld_value is a pointer somewhere into mime_parser, must not be freed
X_MrGrpImageChanged = as_str((*optional_field).fld_value).to_string();
mime_parser.is_system_message = DC_CMD_GROUPIMAGE_CHANGED;
@@ -1230,6 +1218,8 @@ unsafe fn create_or_lookup_group(
// check, if we have a chat with this group ID
let (mut chat_id, chat_id_verified, _blocked) = chat::get_chat_id_by_grpid(context, &grpid);
if chat_id != 0 {
let mut failure_reason = std::ptr::null_mut();
if chat_id_verified
&& 0 == check_verified_properties(
context,
@@ -1239,8 +1229,10 @@ unsafe fn create_or_lookup_group(
&mut failure_reason,
)
{
dc_mimeparser_repl_msg_by_error(mime_parser, failure_reason);
mime_parser.repl_msg_by_error(to_string(failure_reason));
}
free(failure_reason.cast());
}
// check if the sender is a member of the existing group -
@@ -1257,7 +1249,7 @@ unsafe fn create_or_lookup_group(
.get_config(context, "configured_addr")
.unwrap_or_default();
if chat_id == 0
&& !dc_mimeparser_is_mailinglist_message(mime_parser)
&& !mime_parser.is_mailinglist_message()
&& !grpid.is_empty()
&& !grpname.is_null()
// otherwise, a pending "quit" message may pop up
@@ -1267,8 +1259,10 @@ unsafe fn create_or_lookup_group(
|| !X_MrAddToGrp.is_null() && addr_cmp(&self_addr, as_str(X_MrAddToGrp)))
{
let mut create_verified = VerifiedStatus::Unverified;
if !dc_mimeparser_lookup_field(mime_parser, "Chat-Verified").is_null() {
if mime_parser.lookup_field("Chat-Verified").is_some() {
create_verified = VerifiedStatus::Verified;
let mut failure_reason = std::ptr::null_mut();
if 0 == check_verified_properties(
context,
mime_parser,
@@ -1276,13 +1270,13 @@ unsafe fn create_or_lookup_group(
to_ids,
&mut failure_reason,
) {
dc_mimeparser_repl_msg_by_error(mime_parser, failure_reason);
mime_parser.repl_msg_by_error(to_string(failure_reason));
}
free(failure_reason.cast());
}
if 0 == allow_creation {
cleanup(
grpname,
failure_reason,
ret_chat_id,
ret_chat_id_blocked,
chat_id,
@@ -1314,7 +1308,6 @@ unsafe fn create_or_lookup_group(
}
cleanup(
grpname,
failure_reason,
ret_chat_id,
ret_chat_id_blocked,
chat_id,
@@ -1350,7 +1343,7 @@ unsafe fn create_or_lookup_group(
changed = true;
} else {
for part in &mut mime_parser.parts {
if part.type_0 == Viewtype::Image {
if part.typ == Viewtype::Image {
grpimage = part
.param
.get(Param::File)
@@ -1444,7 +1437,6 @@ unsafe fn create_or_lookup_group(
cleanup(
grpname,
failure_reason,
ret_chat_id,
ret_chat_id_blocked,
chat_id,
@@ -1455,7 +1447,7 @@ unsafe fn create_or_lookup_group(
/// Handle groups for received messages
unsafe fn create_or_lookup_adhoc_group(
context: &Context,
mime_parser: &dc_mimeparser_t,
mime_parser: &MimeParser,
allow_creation: libc::c_int,
create_blocked: Blocked,
from_id: u32,
@@ -1483,7 +1475,7 @@ unsafe fn create_or_lookup_adhoc_group(
};
// build member list from the given ids
if to_ids.is_empty() || dc_mimeparser_is_mailinglist_message(mime_parser) {
if to_ids.is_empty() || mime_parser.is_mailinglist_message() {
// too few contacts or a mailinglist
cleanup(
grpname,
@@ -1744,7 +1736,7 @@ fn search_chat_ids_by_contact_ids(context: &Context, unsorted_contact_ids: &Vec<
unsafe fn check_verified_properties(
context: &Context,
mimeparser: &dc_mimeparser_t,
mimeparser: &MimeParser,
from_id: u32,
to_ids: &Vec<u32>,
failure_reason: *mut *mut libc::c_char,
@@ -1844,46 +1836,53 @@ unsafe fn check_verified_properties(
1
}
unsafe fn set_better_msg<T: AsRef<str>>(mime_parser: &mut dc_mimeparser_t, better_msg: T) {
fn set_better_msg(mime_parser: &mut MimeParser, better_msg: impl AsRef<str>) {
let msg = better_msg.as_ref();
if msg.len() > 0 && !mime_parser.parts.is_empty() {
let part = &mut mime_parser.parts[0];
if (*part).type_0 == Viewtype::Text {
if part.typ == Viewtype::Text {
part.msg = Some(msg.to_string());
}
};
}
unsafe fn dc_is_reply_to_known_message(
context: &Context,
mime_parser: &dc_mimeparser_t,
) -> libc::c_int {
unsafe fn dc_is_reply_to_known_message(context: &Context, mime_parser: &MimeParser) -> 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, "Chat-Predecessor");
if !optional_field.is_null() {
if let Some(optional_field) = mime_parser.lookup_optional_field("Chat-Predecessor") {
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 is_known_rfc724_mid_in_list(context, (*(*field).fld_data.fld_in_reply_to).mid_list) {
return 1;
if let Some(field) = mime_parser.lookup_field("In-Reply-To") {
if (*field).fld_type == MAILIMF_FIELD_IN_REPLY_TO as libc::c_int {
let fld_in_reply_to = (*field).fld_data.fld_in_reply_to;
if !fld_in_reply_to.is_null() {
if 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 is_known_rfc724_mid_in_list(context, (*(*field).fld_data.fld_references).mid_list) {
return 1;
if let Some(field) = mime_parser.lookup_field("References") {
if (*field).fld_type == MAILIMF_FIELD_REFERENCES as libc::c_int {
let fld_references = (*field).fld_data.fld_references;
if !fld_references.is_null() {
if is_known_rfc724_mid_in_list(
context,
(*(*field).fld_data.fld_references).mid_list,
) {
return 1;
}
}
}
}
0
}
@@ -1920,37 +1919,42 @@ fn is_known_rfc724_mid(context: &Context, rfc724_mid: *const libc::c_char) -> li
unsafe fn dc_is_reply_to_messenger_message(
context: &Context,
mime_parser: &dc_mimeparser_t,
mime_parser: &MimeParser,
) -> 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;
if let Some(field) = mime_parser.lookup_field("In-Reply-To") {
if (*field).fld_type == MAILIMF_FIELD_IN_REPLY_TO as libc::c_int {
let fld_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;
if let Some(field) = mime_parser.lookup_field("References") {
if (*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;
}
}
}
}
0
}

49
src/e2ee.rs
View File

@@ -386,16 +386,17 @@ impl E2eeHelper {
/*just a pointer into mailmime structure, must not be freed*/
let imffields: *mut mailimf_fields = mailmime_find_mailimf_fields(in_out_message);
let mut message_time = 0;
let mut from: *mut libc::c_char = ptr::null_mut();
let mut from = None;
let mut private_keyring = Keyring::default();
let mut public_keyring_for_validate = Keyring::default();
let mut gossip_headers: *mut mailimf_fields = ptr::null_mut();
if !(in_out_message.is_null() || imffields.is_null()) {
let mut field: *mut mailimf_field =
mailimf_find_field(imffields, MAILIMF_FIELD_FROM as libc::c_int);
let mut field = mailimf_find_field(imffields, MAILIMF_FIELD_FROM as libc::c_int);
if !field.is_null() && !(*field).fld_data.fld_from.is_null() {
from = mailimf_find_first_addr((*(*field).fld_data.fld_from).frm_mb_list)
}
field = mailimf_find_field(imffields, MAILIMF_FIELD_ORIG_DATE as libc::c_int);
if !field.is_null() && !(*field).fld_data.fld_orig_date.is_null() {
let orig_date: *mut mailimf_orig_date = (*field).fld_data.fld_orig_date;
@@ -407,25 +408,28 @@ impl E2eeHelper {
}
}
let mut peerstate = None;
let autocryptheader =
as_opt_str(from).and_then(|from| Aheader::from_imffields(from, imffields));
if message_time > 0 && !from.is_null() {
peerstate = Peerstate::from_addr(context, &context.sql, as_str(from));
let autocryptheader = from
.as_ref()
.and_then(|from| Aheader::from_imffields(from, imffields));
if message_time > 0 {
if let Some(ref from) = from {
peerstate = Peerstate::from_addr(context, &context.sql, from);
if let Some(ref mut peerstate) = peerstate {
if let Some(ref header) = autocryptheader {
peerstate.apply_header(&header, message_time);
peerstate.save_to_db(&context.sql, false);
} else if message_time > peerstate.last_seen_autocrypt
&& !contains_report(in_out_message)
{
peerstate.degrade_encryption(message_time);
peerstate.save_to_db(&context.sql, false);
if let Some(ref mut peerstate) = peerstate {
if let Some(ref header) = autocryptheader {
peerstate.apply_header(&header, message_time);
peerstate.save_to_db(&context.sql, false);
} else if message_time > peerstate.last_seen_autocrypt
&& !contains_report(in_out_message)
{
peerstate.degrade_encryption(message_time);
peerstate.save_to_db(&context.sql, false);
}
} else if let Some(ref header) = autocryptheader {
let p = Peerstate::from_header(context, header, message_time);
assert!(p.save_to_db(&context.sql, true));
peerstate = Some(p);
}
} else if let Some(ref header) = autocryptheader {
let p = Peerstate::from_header(context, header, message_time);
assert!(p.save_to_db(&context.sql, true));
peerstate = Some(p);
}
}
/* load private key for decryption */
@@ -437,7 +441,8 @@ impl E2eeHelper {
&context.sql,
) {
if peerstate.as_ref().map(|p| p.last_seen).unwrap_or_else(|| 0) == 0 {
peerstate = Peerstate::from_addr(&context, &context.sql, as_str(from));
peerstate =
Peerstate::from_addr(&context, &context.sql, &from.unwrap_or_default());
}
if let Some(ref peerstate) = peerstate {
if peerstate.degrade_event.is_some() {
@@ -486,8 +491,6 @@ impl E2eeHelper {
if !gossip_headers.is_null() {
mailimf_fields_free(gossip_headers);
}
free(from as *mut libc::c_void);
}
}

23
src/securejoin.rs
View File

@@ -335,7 +335,7 @@ fn fingerprint_equals_sender(
/* library private: secure-join */
pub fn handle_securejoin_handshake(
context: &Context,
mimeparser: &dc_mimeparser_t,
mimeparser: &MimeParser,
contact_id: u32,
) -> libc::c_int {
let own_fingerprint: String;
@@ -651,21 +651,21 @@ fn secure_connection_established(context: &Context, contact_chat_id: u32) {
emit_event!(context, Event::ChatModified(contact_chat_id));
}
fn lookup_field(mimeparser: &dc_mimeparser_t, key: &str) -> Option<String> {
let field: *mut mailimf_field = dc_mimeparser_lookup_field(mimeparser, key);
unsafe {
fn lookup_field(mime_parser: &MimeParser, key: &str) -> Option<String> {
if let Some(field) = mime_parser.lookup_field(key) {
let mut value: *const libc::c_char = ptr::null();
if field.is_null()
|| (*field).fld_type != MAILIMF_FIELD_OPTIONAL_FIELD as libc::c_int
|| (*field).fld_data.fld_optional_field.is_null()
if unsafe { (*field).fld_type } != MAILIMF_FIELD_OPTIONAL_FIELD as libc::c_int
|| unsafe { (*field).fld_data.fld_optional_field.is_null() }
|| {
value = (*(*field).fld_data.fld_optional_field).fld_value;
value = unsafe { (*(*field).fld_data.fld_optional_field).fld_value };
value.is_null()
}
{
return None;
}
Some(as_str(value).to_string())
Some(to_string(value))
} else {
None
}
}
@@ -706,10 +706,7 @@ fn mark_peer_as_verified(context: &Context, fingerprint: impl AsRef<str>) -> Res
* Tools: Misc.
******************************************************************************/
fn encrypted_and_signed(
mimeparser: &dc_mimeparser_t,
expected_fingerprint: impl AsRef<str>,
) -> bool {
fn encrypted_and_signed(mimeparser: &MimeParser, expected_fingerprint: impl AsRef<str>) -> bool {
if !mimeparser.e2ee_helper.encrypted {
warn!(mimeparser.context, "Message not encrypted.",);
false