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7 changed files with 991 additions and 993 deletions

View File

@@ -1331,7 +1331,13 @@ pub fn add_to_chat_contacts_table(context: &Context, chat_id: u32, contact_id: u
}
pub fn add_contact_to_chat(context: &Context, chat_id: u32, contact_id: u32) -> bool {
add_contact_to_chat_ex(context, chat_id, contact_id, false)
match add_contact_to_chat_ex(context, chat_id, contact_id, false) {
Ok(res) => res,
Err(err) => {
error!(context, "failed to add contact: {}", err);
false
}
}
}
#[allow(non_snake_case)]
@@ -1340,33 +1346,30 @@ pub(crate) fn add_contact_to_chat_ex(
chat_id: u32,
contact_id: u32,
from_handshake: bool,
) -> bool {
let mut OK_TO_CONTINUE = true;
let mut success = false;
let contact = Contact::get_by_id(context, contact_id);
if contact.is_err() || chat_id <= DC_CHAT_ID_LAST_SPECIAL {
return false;
}
) -> Result<bool, Error> {
ensure!(chat_id > DC_CHAT_ID_LAST_SPECIAL, "can not add member to special chats");
let contact = Contact::get_by_id(context, contact_id)?;
let mut msg = Message::default();
reset_gossiped_timestamp(context, chat_id);
let contact = contact.unwrap();
/*this also makes sure, not contacts are added to special or normal chats*/
if let Ok(mut chat) = Chat::load_from_db(context, chat_id) {
if !(!real_group_exists(context, chat_id)
|| !Contact::real_exists_by_id(context, contact_id) && contact_id != DC_CONTACT_ID_SELF)
{
if !is_contact_in_chat(context, chat_id, 1 as u32) {
let mut chat = Chat::load_from_db(context, chat_id)?;
ensure!(real_group_exists(context, chat_id),
"chat_id {} is not a group where one can add members", chat_id);
ensure!(Contact::real_exists_by_id(context, contact_id) && contact_id != DC_CONTACT_ID_SELF,
"invalid contact_id {} for removal in group", contact_id);
if !is_contact_in_chat(context, chat_id, DC_CONTACT_ID_SELF as u32) {
/* we should respect this - whatever we send to the group, it gets discarded anyway! */
emit_event!(
context,
Event::ErrorSelfNotInGroup(
"Cannot add contact to group; self not in group.".into()
)
);
} else {
/* we should respect this - whatever we send to the group, it gets discarded anyway! */
bail!("can not add contact because our account is not part of it");
}
if from_handshake && chat.param.get_int(Param::Unpromoted).unwrap_or_default() == 1
{
chat.param.remove(Param::Unpromoted);
@@ -1376,14 +1379,15 @@ pub(crate) fn add_contact_to_chat_ex(
.sql
.get_config(context, "configured_addr")
.unwrap_or_default();
if contact.get_addr() != &self_addr {
if contact.get_addr() == &self_addr {
bail!("invalid attempt to add self e-mail address to group");
}
// ourself is added using DC_CONTACT_ID_SELF, do not add it explicitly.
// if SELF is not in the group, members cannot be added at all.
if is_contact_in_chat(context, chat_id, contact_id) {
if !from_handshake {
success = true;
OK_TO_CONTINUE = false;
return Ok(true);
}
} else {
// else continue and send status mail
@@ -1393,16 +1397,13 @@ pub(crate) fn add_contact_to_chat_ex(
context,
"Only bidirectional verified contacts can be added to verified groups."
);
OK_TO_CONTINUE = false;
return Ok(false);
}
}
if OK_TO_CONTINUE {
if !add_to_chat_contacts_table(context, chat_id, contact_id) {
OK_TO_CONTINUE = false;
return Ok(false);
}
}
}
if OK_TO_CONTINUE {
if chat.param.get_int(Param::Unpromoted).unwrap_or_default() == 0 {
msg.type_0 = Viewtype::Text;
msg.text = Some(context.stock_system_msg(
@@ -1421,14 +1422,7 @@ pub(crate) fn add_contact_to_chat_ex(
});
}
context.call_cb(Event::MsgsChanged { chat_id, msg_id: 0 });
success = true;
}
}
}
}
};
success
return Ok(true);
}
fn real_group_exists(context: &Context, chat_id: u32) -> bool {

View File

@@ -1,952 +0,0 @@
use std::path::Path;
use std::ptr;
use chrono::TimeZone;
use mmime::clist::*;
use mmime::mailimf_types::*;
use mmime::mailimf_types_helper::*;
use mmime::mailmime_disposition::*;
use mmime::mailmime_types::*;
use mmime::mailmime_types_helper::*;
use mmime::mailmime_write_mem::*;
use mmime::mmapstring::*;
use mmime::other::*;
use crate::chat::{self, Chat};
use crate::constants::*;
use crate::contact::*;
use crate::context::{get_version_str, Context};
use crate::dc_mimeparser::{mailmime_find_mailimf_fields, SystemMessage};
use crate::dc_strencode::*;
use crate::dc_tools::*;
use crate::e2ee::*;
use crate::error::Error;
use crate::location;
use crate::message::{self, Message};
use crate::param::*;
use crate::stock::StockMessage;
use crate::wrapmime;
#[derive(Clone, Copy, Eq, PartialEq)]
pub enum Loaded {
Nothing,
Message,
MDN, // TODO: invent more descriptive name
}
#[derive(Clone)]
pub struct MimeFactory<'a> {
pub from_addr: String,
pub from_displayname: String,
pub selfstatus: String,
pub recipients_names: Vec<String>,
pub recipients_addr: Vec<String>,
pub timestamp: i64,
pub rfc724_mid: String,
pub loaded: Loaded,
pub msg: Message,
pub chat: Option<Chat>,
pub increation: bool,
pub in_reply_to: String,
pub references: String,
pub req_mdn: bool,
pub out: *mut MMAPString,
pub out_encrypted: bool,
pub out_gossiped: bool,
pub out_last_added_location_id: u32,
pub context: &'a Context,
}
impl<'a> MimeFactory<'a> {
fn new(context: &'a Context, msg: Message) -> Self {
let cget = |context: &Context, name: &str| context.sql.get_config(context, name);
MimeFactory {
from_addr: cget(&context, "configured_addr").unwrap_or_default(),
from_displayname: cget(&context, "displayname").unwrap_or_default(),
selfstatus: cget(&context, "selfstatus")
.unwrap_or_else(|| context.stock_str(StockMessage::StatusLine).to_string()),
recipients_names: Vec::with_capacity(5),
recipients_addr: Vec::with_capacity(5),
timestamp: 0,
rfc724_mid: String::default(),
loaded: Loaded::Nothing,
msg,
chat: None,
increation: false,
in_reply_to: String::default(),
references: String::default(),
req_mdn: false,
out: ptr::null_mut(),
out_encrypted: false,
out_gossiped: false,
out_last_added_location_id: 0,
context,
}
}
pub fn finalize_mime_message(
&mut self,
message: *mut mailmime,
encrypted: bool,
gossiped: bool,
) -> Result<(), Error> {
unsafe {
assert!(self.out.is_null()); // guard against double-calls
self.out = mmap_string_new(b"\x00" as *const u8 as *const libc::c_char);
let mut col: libc::c_int = 0;
ensure_eq!(
mailmime_write_mem(self.out, &mut col, message),
0,
"mem-error"
);
}
self.out_encrypted = encrypted;
self.out_gossiped = encrypted && gossiped;
Ok(())
}
}
impl<'a> Drop for MimeFactory<'a> {
fn drop(&mut self) {
unsafe {
if !self.out.is_null() {
mmap_string_free(self.out);
}
}
}
}
pub fn dc_mimefactory_load_msg(context: &Context, msg_id: u32) -> Result<MimeFactory, Error> {
ensure!(msg_id > DC_CHAT_ID_LAST_SPECIAL, "Invalid chat id");
let msg = Message::load_from_db(context, msg_id)?;
let chat = Chat::load_from_db(context, msg.chat_id)?;
let mut factory = MimeFactory::new(context, msg);
factory.chat = Some(chat);
// just set the chat above
let chat = factory.chat.as_ref().unwrap();
if chat.is_self_talk() {
factory
.recipients_names
.push(factory.from_displayname.to_string());
factory.recipients_addr.push(factory.from_addr.to_string());
} else {
context
.sql
.query_map(
"SELECT c.authname, c.addr \
FROM chats_contacts cc \
LEFT JOIN contacts c ON cc.contact_id=c.id \
WHERE cc.chat_id=? AND cc.contact_id>9;",
params![factory.msg.chat_id as i32],
|row| {
let authname: String = row.get(0)?;
let addr: String = row.get(1)?;
Ok((authname, addr))
},
|rows| {
for row in rows {
let (authname, addr) = row?;
if !vec_contains_lowercase(&factory.recipients_addr, &addr) {
factory.recipients_addr.push(addr);
factory.recipients_names.push(authname);
}
}
Ok(())
},
)
.unwrap();
let command = factory.msg.param.get_cmd();
let msg = &factory.msg;
/* for added members, the list is just fine */
if command == SystemMessage::MemberRemovedFromGroup {
let email_to_remove = msg.param.get(Param::Arg).unwrap_or_default();
let self_addr = context
.sql
.get_config(context, "configured_addr")
.unwrap_or_default();
if !email_to_remove.is_empty() && email_to_remove != self_addr {
if !vec_contains_lowercase(&factory.recipients_addr, &email_to_remove) {
factory.recipients_names.push("".to_string());
factory.recipients_addr.push(email_to_remove.to_string());
}
}
}
if command != SystemMessage::AutocryptSetupMessage
&& command != SystemMessage::SecurejoinMessage
&& 0 != context
.sql
.get_config_int(context, "mdns_enabled")
.unwrap_or_else(|| 1)
{
factory.req_mdn = true;
}
}
let row = context.sql.query_row(
"SELECT mime_in_reply_to, mime_references FROM msgs WHERE id=?",
params![factory.msg.id as i32],
|row| {
let in_reply_to: String = row.get(0)?;
let references: String = row.get(1)?;
Ok((in_reply_to, references))
},
);
match row {
Ok((in_reply_to, references)) => {
factory.in_reply_to = in_reply_to;
factory.references = references;
}
Err(err) => {
error!(
context,
"mimefactory: failed to load mime_in_reply_to: {:?}", err
);
}
}
factory.loaded = Loaded::Message;
factory.timestamp = factory.msg.timestamp_sort;
factory.rfc724_mid = factory.msg.rfc724_mid.clone();
factory.increation = factory.msg.is_increation();
Ok(factory)
}
pub fn dc_mimefactory_load_mdn<'a>(
context: &'a Context,
msg_id: u32,
) -> Result<MimeFactory, Error> {
if 0 == context
.sql
.get_config_int(context, "mdns_enabled")
.unwrap_or_else(|| 1)
{
// MDNs not enabled - check this is late, in the job. the use may have changed its
// choice while offline ...
bail!("MDNs disabled ")
}
let msg = Message::load_from_db(context, msg_id)?;
let mut factory = MimeFactory::new(context, msg);
let contact = Contact::load_from_db(factory.context, factory.msg.from_id)?;
// Do not send MDNs trash etc.; chats.blocked is already checked by the caller
// in dc_markseen_msgs()
ensure!(!contact.is_blocked(), "Contact blocked");
ensure!(
factory.msg.chat_id > DC_CHAT_ID_LAST_SPECIAL,
"Invalid chat id"
);
factory
.recipients_names
.push(contact.get_authname().to_string());
factory.recipients_addr.push(contact.get_addr().to_string());
factory.timestamp = dc_create_smeared_timestamp(factory.context);
factory.rfc724_mid = dc_create_outgoing_rfc724_mid(None, &factory.from_addr);
factory.loaded = Loaded::MDN;
Ok(factory)
}
// XXX push down unsafe to only guard mailimf_* operations
pub unsafe fn dc_mimefactory_render(
context: &Context,
factory: &mut MimeFactory,
) -> Result<(), Error> {
if factory.loaded == Loaded::Nothing || !factory.out.is_null() {
bail!("Invalid use of mimefactory-object.");
}
/* create basic mail
*************************************************************************/
let from: *mut mailimf_mailbox_list = mailimf_mailbox_list_new_empty();
mailimf_mailbox_list_add(
from,
mailimf_mailbox_new(
if !factory.from_displayname.is_empty() {
dc_encode_header_words(&factory.from_displayname).strdup()
} else {
ptr::null_mut()
},
factory.from_addr.strdup(),
),
);
let mut to: *mut mailimf_address_list = ptr::null_mut();
if !factory.recipients_names.is_empty() && !factory.recipients_addr.is_empty() {
to = mailimf_address_list_new_empty();
let name_iter = factory.recipients_names.iter();
let addr_iter = factory.recipients_addr.iter();
for (name, addr) in name_iter.zip(addr_iter) {
mailimf_address_list_add(
to,
mailimf_address_new(
MAILIMF_ADDRESS_MAILBOX as libc::c_int,
mailimf_mailbox_new(
if !name.is_empty() {
dc_encode_header_words(&name).strdup()
} else {
ptr::null_mut()
},
addr.strdup(),
),
ptr::null_mut(),
),
);
}
}
let references_list = if !factory.references.is_empty() {
dc_str_to_clist(&factory.references, " ")
} else {
ptr::null_mut()
};
let in_reply_to_list = if !factory.in_reply_to.is_empty() {
dc_str_to_clist(&factory.in_reply_to, " ")
} else {
ptr::null_mut()
};
let imf_fields = mailimf_fields_new_with_data_all(
mailimf_get_date(factory.timestamp as i64),
from,
ptr::null_mut(),
ptr::null_mut(),
to,
ptr::null_mut(),
ptr::null_mut(),
factory.rfc724_mid.strdup(),
in_reply_to_list,
references_list,
ptr::null_mut(),
);
let os_name = &factory.context.os_name;
let os_part = os_name
.as_ref()
.map(|s| format!("/{}", s))
.unwrap_or_default();
let version = get_version_str();
let headerval = format!("Delta Chat Core {}{}", version, os_part);
/* Add a X-Mailer header.
This is only informational for debugging and may be removed in the release.
We do not rely on this header as it may be removed by MTAs. */
wrapmime::new_custom_field(imf_fields, "X-Mailer", &headerval);
wrapmime::new_custom_field(imf_fields, "Chat-Version", "1.0");
if factory.req_mdn {
/* we use "Chat-Disposition-Notification-To"
because replies to "Disposition-Notification-To" are weird in many cases
eg. are just freetext and/or do not follow any standard. */
wrapmime::new_custom_field(
imf_fields,
"Chat-Disposition-Notification-To",
&factory.from_addr,
);
}
let cleanup = |message: *mut mailmime| {
if !message.is_null() {
mailmime_free(message);
}
};
let message = mailmime_new_message_data(0 as *mut mailmime);
ensure!(!message.is_null(), "could not create mime message data");
mailmime_set_imf_fields(message, imf_fields);
// 1=add Autocrypt-header (needed eg. for handshaking), 2=no Autocrypte-header (used for MDN)
let mut e2ee_guaranteed = false;
let mut min_verified: libc::c_int = 0;
let mut do_gossip = false;
let mut grpimage = None;
let force_plaintext: libc::c_int;
let subject_str = match factory.loaded {
Loaded::Message => {
/* Render a normal message
*********************************************************************/
let chat = factory.chat.as_ref().unwrap();
let mut meta_part: *mut mailmime = ptr::null_mut();
let mut placeholdertext = None;
if chat.typ == Chattype::VerifiedGroup {
wrapmime::new_custom_field(imf_fields, "Chat-Verified", "1");
force_plaintext = 0;
e2ee_guaranteed = true;
min_verified = 2
} else {
force_plaintext = factory
.msg
.param
.get_int(Param::ForcePlaintext)
.unwrap_or_default();
if force_plaintext == 0 {
e2ee_guaranteed = factory
.msg
.param
.get_int(Param::GuranteeE2ee)
.unwrap_or_default()
!= 0;
}
}
/* beside key- and member-changes, force re-gossip every 48 hours */
if chat.gossiped_timestamp == 0
|| (chat.gossiped_timestamp + (2 * 24 * 60 * 60)) < time()
{
do_gossip = true
}
/* build header etc. */
let command = factory.msg.param.get_cmd();
if chat.typ == Chattype::Group || chat.typ == Chattype::VerifiedGroup {
wrapmime::new_custom_field(imf_fields, "Chat-Group-ID", &chat.grpid);
let encoded = dc_encode_header_words(&chat.name);
wrapmime::new_custom_field(imf_fields, "Chat-Group-Name", &encoded);
match command {
SystemMessage::MemberRemovedFromGroup => {
let email_to_remove = factory.msg.param.get(Param::Arg).unwrap_or_default();
if !email_to_remove.is_empty() {
wrapmime::new_custom_field(
imf_fields,
"Chat-Group-Member-Removed",
&email_to_remove,
);
}
}
SystemMessage::MemberAddedToGroup => {
let msg = &factory.msg;
do_gossip = true;
let email_to_add = msg.param.get(Param::Arg).unwrap_or_default();
if !email_to_add.is_empty() {
wrapmime::new_custom_field(
imf_fields,
"Chat-Group-Member-Added",
&email_to_add,
);
grpimage = chat.param.get(Param::ProfileImage);
}
if 0 != msg.param.get_int(Param::Arg2).unwrap_or_default() & 0x1 {
info!(
context,
"sending secure-join message \'{}\' >>>>>>>>>>>>>>>>>>>>>>>>>",
"vg-member-added",
);
wrapmime::new_custom_field(
imf_fields,
"Secure-Join",
"vg-member-added",
);
}
}
SystemMessage::GroupNameChanged => {
let msg = &factory.msg;
let value_to_add = msg.param.get(Param::Arg).unwrap_or_default();
wrapmime::new_custom_field(
imf_fields,
"Chat-Group-Name-Changed",
&value_to_add,
);
}
SystemMessage::GroupImageChanged => {
let msg = &factory.msg;
grpimage = msg.param.get(Param::Arg);
if grpimage.is_none() {
wrapmime::new_custom_field(imf_fields, "Chat-Group-Image", "0");
}
}
_ => {}
}
}
match command {
SystemMessage::LocationStreamingEnabled => {
wrapmime::new_custom_field(
imf_fields,
"Chat-Content",
"location-streaming-enabled",
);
}
SystemMessage::AutocryptSetupMessage => {
wrapmime::new_custom_field(imf_fields, "Autocrypt-Setup-Message", "v1");
placeholdertext = Some(
factory
.context
.stock_str(StockMessage::AcSetupMsgBody)
.to_string(),
);
}
SystemMessage::SecurejoinMessage => {
let msg = &factory.msg;
let step = msg.param.get(Param::Arg).unwrap_or_default();
if !step.is_empty() {
info!(
context,
"sending secure-join message \'{}\' >>>>>>>>>>>>>>>>>>>>>>>>>", step,
);
wrapmime::new_custom_field(imf_fields, "Secure-Join", &step);
let param2 = msg.param.get(Param::Arg2).unwrap_or_default();
if !param2.is_empty() {
wrapmime::new_custom_field(
imf_fields,
if step == "vg-request-with-auth" || step == "vc-request-with-auth"
{
"Secure-Join-Auth"
} else {
"Secure-Join-Invitenumber"
},
param2,
)
}
let fingerprint = msg.param.get(Param::Arg3).unwrap_or_default();
if !fingerprint.is_empty() {
wrapmime::new_custom_field(
imf_fields,
"Secure-Join-Fingerprint",
&fingerprint,
);
}
match msg.param.get(Param::Arg4) {
Some(id) => {
wrapmime::new_custom_field(imf_fields, "Secure-Join-Group", &id);
}
None => {}
};
}
}
_ => {}
}
if let Some(grpimage) = grpimage {
info!(factory.context, "setting group image '{}'", grpimage);
let mut meta = Message::default();
meta.type_0 = Viewtype::Image;
meta.param.set(Param::File, grpimage);
let res = build_body_file(context, &meta, "group-image")?;
meta_part = res.0;
let filename_as_sent = res.1;
if !meta_part.is_null() {
wrapmime::new_custom_field(imf_fields, "Chat-Group-Image", &filename_as_sent)
}
}
if factory.msg.type_0 == Viewtype::Voice
|| factory.msg.type_0 == Viewtype::Audio
|| factory.msg.type_0 == Viewtype::Video
{
if factory.msg.type_0 == Viewtype::Voice {
wrapmime::new_custom_field(imf_fields, "Chat-Voice-Message", "1");
}
let duration_ms = factory
.msg
.param
.get_int(Param::Duration)
.unwrap_or_default();
if duration_ms > 0 {
let dur = duration_ms.to_string();
wrapmime::new_custom_field(imf_fields, "Chat-Duration", &dur);
}
}
/* add text part - we even add empty text and force a MIME-multipart-message as:
- some Apps have problems with Non-text in the main part (eg. "Mail" from stock Android)
- we can add "forward hints" this way
- it looks better */
let afwd_email = factory.msg.param.exists(Param::Forwarded);
let fwdhint = if afwd_email {
Some(
"---------- Forwarded message ----------\r\nFrom: Delta Chat\r\n\r\n"
.to_string(),
)
} else {
None
};
let final_text = {
if let Some(ref text) = placeholdertext {
text
} else if let Some(ref text) = factory.msg.text {
text
} else {
""
}
};
let footer = &factory.selfstatus;
let message_text = format!(
"{}{}{}{}{}",
fwdhint.unwrap_or_default(),
&final_text,
if !final_text.is_empty() && !footer.is_empty() {
"\r\n\r\n"
} else {
""
},
if !footer.is_empty() { "-- \r\n" } else { "" },
footer
);
let text_part = wrapmime::build_body_text(&message_text)?;
mailmime_smart_add_part(message, text_part);
/* add attachment part */
if chat::msgtype_has_file(factory.msg.type_0) {
if !is_file_size_okay(context, &factory.msg) {
cleanup(message);
bail!(
"Message exceeds the recommended {} MB.",
24 * 1024 * 1024 / 4 * 3 / 1000 / 1000,
);
} else {
let (file_part, _) = build_body_file(context, &factory.msg, "")?;
mailmime_smart_add_part(message, file_part);
}
}
if !meta_part.is_null() {
mailmime_smart_add_part(message, meta_part);
}
if factory.msg.param.exists(Param::SetLatitude) {
let param = &factory.msg.param;
let kml_file = location::get_message_kml(
factory.msg.timestamp_sort,
param.get_float(Param::SetLatitude).unwrap_or_default(),
param.get_float(Param::SetLongitude).unwrap_or_default(),
);
wrapmime::add_filename_part(
message,
"message.kml",
"application/vnd.google-earth.kml+xml",
&kml_file,
)?;
}
if location::is_sending_locations_to_chat(context, factory.msg.chat_id) {
if let Ok((kml_file, last_added_location_id)) =
location::get_kml(context, factory.msg.chat_id)
{
wrapmime::add_filename_part(
message,
"location.kml",
"application/vnd.google-earth.kml+xml",
&kml_file,
)?;
if !factory.msg.param.exists(Param::SetLatitude) {
// otherwise, the independent location is already filed
factory.out_last_added_location_id = last_added_location_id;
}
}
}
get_subject(context, factory.chat.as_ref(), &mut factory.msg, afwd_email)
}
Loaded::MDN => {
/* Render a MDN
*********************************************************************/
/* RFC 6522, this also requires the `report-type` parameter which is equal
to the MIME subtype of the second body part of the multipart/report */
let multipart =
mailmime_multiple_new(b"multipart/report\x00" as *const u8 as *const libc::c_char);
wrapmime::append_ct_param(
(*multipart).mm_content_type,
"report-type",
"disposition-notification",
)?;
mailmime_add_part(message, multipart);
/* first body part: always human-readable, always REQUIRED by RFC 6522 */
let p1 = if 0
!= factory
.msg
.param
.get_int(Param::GuranteeE2ee)
.unwrap_or_default()
{
factory
.context
.stock_str(StockMessage::EncryptedMsg)
.into_owned()
} else {
factory.msg.get_summarytext(context, 32)
};
let p2 = factory
.context
.stock_string_repl_str(StockMessage::ReadRcptMailBody, p1);
let message_text = format!("{}\r\n", p2);
let human_mime_part = wrapmime::build_body_text(&message_text)?;
mailmime_add_part(multipart, human_mime_part);
/* second body part: machine-readable, always REQUIRED by RFC 6522 */
let version = get_version_str();
let message_text2 = format!(
"Reporting-UA: Delta Chat {}\r\nOriginal-Recipient: rfc822;{}\r\nFinal-Recipient: rfc822;{}\r\nOriginal-Message-ID: <{}>\r\nDisposition: manual-action/MDN-sent-automatically; displayed\r\n",
version,
factory.from_addr,
factory.from_addr,
factory.msg.rfc724_mid
);
let content_type_0 = wrapmime::new_content_type("message/disposition-notification")?;
let mime_fields_0: *mut mailmime_fields =
mailmime_fields_new_encoding(MAILMIME_MECHANISM_8BIT as libc::c_int);
let mach_mime_part: *mut mailmime = mailmime_new_empty(content_type_0, mime_fields_0);
wrapmime::set_body_text(mach_mime_part, &message_text2)?;
mailmime_add_part(multipart, mach_mime_part);
force_plaintext = DC_FP_NO_AUTOCRYPT_HEADER;
info!(context, "sending MDM {:?}", message_text2);
/* currently, we do not send MDNs encrypted:
- in a multi-device-setup that is not set up properly, MDNs would disturb the communication as they
are send automatically which may lead to spreading outdated Autocrypt headers.
- they do not carry any information but the Message-ID
- this save some KB
- in older versions, we did not encrypt messages to ourself when they to to SMTP - however, if these messages
are forwarded for any reasons (eg. gmail always forwards to IMAP), we have no chance to decrypt them;
this issue is fixed with 0.9.4 */
let e = factory.context.stock_str(StockMessage::ReadRcpt);
format!("Chat: {}", e).to_string()
}
_ => {
cleanup(message);
bail!("No message loaded.");
}
};
/* Create the mime message
*************************************************************************/
mailimf_fields_add(
imf_fields,
mailimf_field_new(
MAILIMF_FIELD_SUBJECT as libc::c_int,
ptr::null_mut(),
ptr::null_mut(),
ptr::null_mut(),
ptr::null_mut(),
ptr::null_mut(),
ptr::null_mut(),
ptr::null_mut(),
ptr::null_mut(),
ptr::null_mut(),
ptr::null_mut(),
ptr::null_mut(),
ptr::null_mut(),
ptr::null_mut(),
ptr::null_mut(),
ptr::null_mut(),
ptr::null_mut(),
ptr::null_mut(),
ptr::null_mut(),
mailimf_subject_new(dc_encode_header_words(subject_str).strdup()),
ptr::null_mut(),
ptr::null_mut(),
ptr::null_mut(),
),
);
/*just a pointer into mailmime structure, must not be freed*/
let imffields_unprotected = mailmime_find_mailimf_fields(message);
ensure!(
!imffields_unprotected.is_null(),
"could not find mime fields"
);
let mut encrypt_helper = EncryptHelper::new(&context)?;
if force_plaintext != DC_FP_NO_AUTOCRYPT_HEADER {
// unless determined otherwise we add Autocrypt header
let aheader = encrypt_helper.get_aheader().to_string();
wrapmime::new_custom_field(imffields_unprotected, "Autocrypt", &aheader);
}
let mut finalized = false;
if force_plaintext == 0 {
finalized = encrypt_helper.try_encrypt(
factory,
e2ee_guaranteed,
min_verified,
do_gossip,
message,
imffields_unprotected,
)?;
}
if !finalized {
factory.finalize_mime_message(message, false, false)?;
}
cleanup(message);
Ok(())
}
fn get_subject(
context: &Context,
chat: Option<&Chat>,
msg: &mut Message,
afwd_email: bool,
) -> String {
if chat.is_none() {
return String::default();
}
let chat = chat.unwrap();
let raw_subject =
message::get_summarytext_by_raw(msg.type_0, msg.text.as_ref(), &mut msg.param, 32, context);
let fwd = if afwd_email { "Fwd: " } else { "" };
if msg.param.get_cmd() == SystemMessage::AutocryptSetupMessage {
/* do not add the "Chat:" prefix for setup messages */
context
.stock_str(StockMessage::AcSetupMsgSubject)
.into_owned()
} else if chat.typ == Chattype::Group || chat.typ == Chattype::VerifiedGroup {
format!("Chat: {}: {}{}", chat.name, fwd, raw_subject,)
} else {
format!("Chat: {}{}", fwd, raw_subject)
}
}
#[allow(non_snake_case)]
fn build_body_file(
context: &Context,
msg: &Message,
base_name: &str,
) -> Result<(*mut mailmime, String), Error> {
let path_filename = match msg.param.get(Param::File) {
None => {
bail!("msg has no filename");
}
Some(path) => path,
};
let suffix = dc_get_filesuffix_lc(path_filename).unwrap_or_else(|| "dat".into());
/* get file name to use for sending
(for privacy purposes, we do not transfer the original filenames eg. for images;
these names are normally not needed and contain timestamps, running numbers etc.) */
let filename_to_send = match msg.type_0 {
Viewtype::Voice => chrono::Utc
.timestamp(msg.timestamp_sort as i64, 0)
.format(&format!("voice-message_%Y-%m-%d_%H-%M-%S.{}", suffix))
.to_string(),
Viewtype::Audio => Path::new(path_filename)
.file_name()
.map(|c| c.to_string_lossy().to_string())
.unwrap_or_default(),
Viewtype::Image | Viewtype::Gif => format!(
"{}.{}",
if base_name.is_empty() {
"image"
} else {
base_name
},
&suffix,
),
Viewtype::Video => format!("video.{}", &suffix),
_ => Path::new(path_filename)
.file_name()
.map(|c| c.to_string_lossy().to_string())
.unwrap_or_default(),
};
/* check mimetype */
let mimetype = match msg.param.get(Param::MimeType) {
Some(mtype) => mtype,
None => {
let path = Path::new(path_filename);
if let Some(res) = message::guess_msgtype_from_suffix(&path) {
res.1
} else {
"application/octet-stream"
}
}
};
let needs_ext = dc_needs_ext_header(&filename_to_send);
unsafe {
/* create mime part, for Content-Disposition, see RFC 2183.
`Content-Disposition: attachment` seems not to make a difference to `Content-Disposition: inline` at least on tested Thunderbird and Gma'l in 2017.
But I've heard about problems with inline and outl'k, so we just use the attachment-type until we run into other problems ... */
let mime_fields = mailmime_fields_new_filename(
MAILMIME_DISPOSITION_TYPE_ATTACHMENT as libc::c_int,
if needs_ext {
ptr::null_mut()
} else {
filename_to_send.strdup()
},
MAILMIME_MECHANISM_BASE64 as libc::c_int,
);
if needs_ext {
for cur_data in (*(*mime_fields).fld_list).into_iter() {
let field: *mut mailmime_field = cur_data as *mut _;
if (*field).fld_type == MAILMIME_FIELD_DISPOSITION as libc::c_int
&& !(*field).fld_data.fld_disposition.is_null()
{
let file_disposition = (*field).fld_data.fld_disposition;
if !file_disposition.is_null() {
let parm = mailmime_disposition_parm_new(
MAILMIME_DISPOSITION_PARM_PARAMETER as libc::c_int,
ptr::null_mut(),
ptr::null_mut(),
ptr::null_mut(),
ptr::null_mut(),
0 as libc::size_t,
mailmime_parameter_new(
strdup(b"filename*\x00" as *const u8 as *const libc::c_char),
dc_encode_ext_header(&filename_to_send).strdup(),
),
);
if !parm.is_null() {
clist_insert_after(
(*file_disposition).dsp_parms,
(*(*file_disposition).dsp_parms).last,
parm as *mut libc::c_void,
);
}
}
break;
}
}
}
let content = wrapmime::new_content_type(&mimetype)?;
let filename_encoded = dc_encode_header_words(&filename_to_send);
wrapmime::append_ct_param(content, "name", &filename_encoded)?;
let mime_sub = mailmime_new_empty(content, mime_fields);
let abs_path = dc_get_abs_path(context, path_filename)
.to_c_string()
.unwrap();
mailmime_set_body_file(mime_sub, dc_strdup(abs_path.as_ptr()));
Ok((mime_sub, filename_to_send))
}
}
pub(crate) fn vec_contains_lowercase(vec: &Vec<String>, part: &str) -> bool {
let partlc = part.to_lowercase();
for cur in vec.iter() {
if cur.to_lowercase() == partlc {
return true;
}
}
false
}
/*******************************************************************************
* Render
******************************************************************************/
fn is_file_size_okay(context: &Context, msg: &Message) -> bool {
let mut file_size_okay = true;
let path = msg.param.get(Param::File).unwrap_or_default();
let bytes = dc_get_filebytes(context, &path);
if bytes > (49 * 1024 * 1024 / 4 * 3) {
file_size_okay = false;
}
file_size_okay
}

View File

@@ -23,12 +23,12 @@ use mmime::{mailmime_substitute, MAILIMF_NO_ERROR, MAIL_NO_ERROR};
use crate::aheader::*;
use crate::config::Config;
use crate::context::Context;
use crate::dc_mimefactory::*;
use crate::dc_mimeparser::*;
use crate::dc_tools::*;
use crate::error::*;
use crate::key::*;
use crate::keyring::*;
use crate::mimefactory::MimeFactory;
use crate::peerstate::*;
use crate::pgp::*;
use crate::securejoin::handle_degrade_event;

View File

@@ -8,13 +8,13 @@ use crate::configure::*;
use crate::constants::*;
use crate::context::Context;
use crate::dc_imex::*;
use crate::dc_mimefactory::*;
use crate::dc_tools::*;
use crate::events::Event;
use crate::imap::*;
use crate::location;
use crate::login_param::LoginParam;
use crate::message::{self, Message, MessageState};
use crate::mimefactory::*;
use crate::param::*;
use crate::sql;
@@ -644,7 +644,7 @@ pub fn job_send_msg(context: &Context, msg_id: u32) -> libc::c_int {
let mut success = 0;
/* load message data */
let mimefactory = dc_mimefactory_load_msg(context, msg_id);
let mimefactory = MimeFactory::load_msg(context, msg_id);
if mimefactory.is_err() {
warn!(
context,
@@ -678,7 +678,7 @@ pub fn job_send_msg(context: &Context, msg_id: u32) -> libc::c_int {
}
}
/* create message */
if let Err(msg) = unsafe { dc_mimefactory_render(context, &mut mimefactory) } {
if let Err(msg) = unsafe { mimefactory.render() } {
let e = msg.to_string();
message::set_msg_failed(context, msg_id, Some(e));
} else if 0
@@ -990,8 +990,8 @@ fn connect_to_inbox(context: &Context, inbox: &Imap) -> libc::c_int {
}
fn send_mdn(context: &Context, msg_id: u32) {
if let Ok(mut mimefactory) = dc_mimefactory_load_mdn(context, msg_id) {
if unsafe { dc_mimefactory_render(context, &mut mimefactory) }.is_ok() {
if let Ok(mut mimefactory) = MimeFactory::load_mdn(context, msg_id) {
if unsafe { mimefactory.render() }.is_ok() {
add_smtp_job(context, Action::SendMdn, &mut mimefactory);
}
}

View File

@@ -58,13 +58,13 @@ mod stock;
pub mod dc_array;
mod dc_dehtml;
pub mod dc_imex;
mod dc_mimefactory;
pub mod dc_mimeparser;
pub mod dc_receive_imf;
mod dc_simplify;
mod dc_strencode;
pub mod dc_tools;
mod login_param;
mod mimefactory;
pub mod securejoin;
mod token;
#[macro_use]

954
src/mimefactory.rs Normal file
View File

@@ -0,0 +1,954 @@
use std::path::Path;
use std::ptr;
use chrono::TimeZone;
use mmime::clist::*;
use mmime::mailimf_types::*;
use mmime::mailimf_types_helper::*;
use mmime::mailmime_disposition::*;
use mmime::mailmime_types::*;
use mmime::mailmime_types_helper::*;
use mmime::mailmime_write_mem::*;
use mmime::mmapstring::*;
use mmime::other::*;
use crate::chat::{self, Chat};
use crate::constants::*;
use crate::contact::*;
use crate::context::{get_version_str, Context};
use crate::dc_mimeparser::{mailmime_find_mailimf_fields, SystemMessage};
use crate::dc_strencode::*;
use crate::dc_tools::*;
use crate::e2ee::*;
use crate::error::Error;
use crate::location;
use crate::message::{self, Message};
use crate::param::*;
use crate::stock::StockMessage;
use crate::wrapmime;
#[derive(Clone, Copy, Eq, PartialEq)]
pub enum Loaded {
Nothing,
Message,
MDN, // TODO: invent more descriptive name
}
#[derive(Clone)]
pub struct MimeFactory<'a> {
pub from_addr: String,
pub from_displayname: String,
pub selfstatus: String,
pub recipients_names: Vec<String>,
pub recipients_addr: Vec<String>,
pub timestamp: i64,
pub rfc724_mid: String,
pub loaded: Loaded,
pub msg: Message,
pub chat: Option<Chat>,
pub increation: bool,
pub in_reply_to: String,
pub references: String,
pub req_mdn: bool,
pub out: *mut MMAPString,
pub out_encrypted: bool,
pub out_gossiped: bool,
pub out_last_added_location_id: u32,
pub context: &'a Context,
}
impl<'a> MimeFactory<'a> {
fn new(context: &'a Context, msg: Message) -> Self {
let cget = |context: &Context, name: &str| context.sql.get_config(context, name);
MimeFactory {
from_addr: cget(&context, "configured_addr").unwrap_or_default(),
from_displayname: cget(&context, "displayname").unwrap_or_default(),
selfstatus: cget(&context, "selfstatus")
.unwrap_or_else(|| context.stock_str(StockMessage::StatusLine).to_string()),
recipients_names: Vec::with_capacity(5),
recipients_addr: Vec::with_capacity(5),
timestamp: 0,
rfc724_mid: String::default(),
loaded: Loaded::Nothing,
msg,
chat: None,
increation: false,
in_reply_to: String::default(),
references: String::default(),
req_mdn: false,
out: ptr::null_mut(),
out_encrypted: false,
out_gossiped: false,
out_last_added_location_id: 0,
context,
}
}
pub fn finalize_mime_message(
&mut self,
message: *mut mailmime,
encrypted: bool,
gossiped: bool,
) -> Result<(), Error> {
unsafe {
assert!(self.out.is_null()); // guard against double-calls
self.out = mmap_string_new(b"\x00" as *const u8 as *const libc::c_char);
let mut col: libc::c_int = 0;
ensure_eq!(
mailmime_write_mem(self.out, &mut col, message),
0,
"mem-error"
);
}
self.out_encrypted = encrypted;
self.out_gossiped = encrypted && gossiped;
Ok(())
}
pub fn load_mdn(context: &'a Context, msg_id: u32) -> Result<MimeFactory, Error> {
if 0 == context
.sql
.get_config_int(context, "mdns_enabled")
.unwrap_or_else(|| 1)
{
// MDNs not enabled - check this is late, in the job. the use may have changed its
// choice while offline ...
bail!("MDNs disabled ")
}
let msg = Message::load_from_db(context, msg_id)?;
let mut factory = MimeFactory::new(context, msg);
let contact = Contact::load_from_db(factory.context, factory.msg.from_id)?;
// Do not send MDNs trash etc.; chats.blocked is already checked by the caller
// in dc_markseen_msgs()
ensure!(!contact.is_blocked(), "Contact blocked");
ensure!(
factory.msg.chat_id > DC_CHAT_ID_LAST_SPECIAL,
"Invalid chat id"
);
factory
.recipients_names
.push(contact.get_authname().to_string());
factory.recipients_addr.push(contact.get_addr().to_string());
factory.timestamp = dc_create_smeared_timestamp(factory.context);
factory.rfc724_mid = dc_create_outgoing_rfc724_mid(None, &factory.from_addr);
factory.loaded = Loaded::MDN;
Ok(factory)
}
/*******************************************************************************
* Render
******************************************************************************/
// restrict unsafe to parts, introduce wrapmime helpers where appropriate
pub unsafe fn render(&mut self) -> Result<(), Error> {
if self.loaded == Loaded::Nothing || !self.out.is_null() {
bail!("Invalid use of mimefactory-object.");
}
let context = &self.context;
/* create basic mail
*************************************************************************/
let from: *mut mailimf_mailbox_list = mailimf_mailbox_list_new_empty();
mailimf_mailbox_list_add(
from,
mailimf_mailbox_new(
if !self.from_displayname.is_empty() {
dc_encode_header_words(&self.from_displayname).strdup()
} else {
ptr::null_mut()
},
self.from_addr.strdup(),
),
);
let mut to: *mut mailimf_address_list = ptr::null_mut();
if !self.recipients_names.is_empty() && !self.recipients_addr.is_empty() {
to = mailimf_address_list_new_empty();
let name_iter = self.recipients_names.iter();
let addr_iter = self.recipients_addr.iter();
for (name, addr) in name_iter.zip(addr_iter) {
mailimf_address_list_add(
to,
mailimf_address_new(
MAILIMF_ADDRESS_MAILBOX as libc::c_int,
mailimf_mailbox_new(
if !name.is_empty() {
dc_encode_header_words(&name).strdup()
} else {
ptr::null_mut()
},
addr.strdup(),
),
ptr::null_mut(),
),
);
}
}
let references_list = if !self.references.is_empty() {
dc_str_to_clist(&self.references, " ")
} else {
ptr::null_mut()
};
let in_reply_to_list = if !self.in_reply_to.is_empty() {
dc_str_to_clist(&self.in_reply_to, " ")
} else {
ptr::null_mut()
};
let imf_fields = mailimf_fields_new_with_data_all(
mailimf_get_date(self.timestamp as i64),
from,
ptr::null_mut(),
ptr::null_mut(),
to,
ptr::null_mut(),
ptr::null_mut(),
self.rfc724_mid.strdup(),
in_reply_to_list,
references_list,
ptr::null_mut(),
);
let os_name = &self.context.os_name;
let os_part = os_name
.as_ref()
.map(|s| format!("/{}", s))
.unwrap_or_default();
let version = get_version_str();
let headerval = format!("Delta Chat Core {}{}", version, os_part);
/* Add a X-Mailer header.
This is only informational for debugging and may be removed in the release.
We do not rely on this header as it may be removed by MTAs. */
wrapmime::new_custom_field(imf_fields, "X-Mailer", &headerval);
wrapmime::new_custom_field(imf_fields, "Chat-Version", "1.0");
if self.req_mdn {
/* we use "Chat-Disposition-Notification-To"
because replies to "Disposition-Notification-To" are weird in many cases
eg. are just freetext and/or do not follow any standard. */
wrapmime::new_custom_field(
imf_fields,
"Chat-Disposition-Notification-To",
&self.from_addr,
);
}
let cleanup = |message: *mut mailmime| {
if !message.is_null() {
mailmime_free(message);
}
};
let message = mailmime_new_message_data(0 as *mut mailmime);
ensure!(!message.is_null(), "could not create mime message data");
mailmime_set_imf_fields(message, imf_fields);
// 1=add Autocrypt-header (needed eg. for handshaking), 2=no Autocrypte-header (used for MDN)
let mut e2ee_guaranteed = false;
let mut min_verified: libc::c_int = 0;
let mut do_gossip = false;
let mut grpimage = None;
let force_plaintext: libc::c_int;
let subject_str = match self.loaded {
Loaded::Message => {
/* Render a normal message
*********************************************************************/
let chat = self.chat.as_ref().unwrap();
let mut meta_part: *mut mailmime = ptr::null_mut();
let mut placeholdertext = None;
if chat.typ == Chattype::VerifiedGroup {
wrapmime::new_custom_field(imf_fields, "Chat-Verified", "1");
force_plaintext = 0;
e2ee_guaranteed = true;
min_verified = 2
} else {
force_plaintext = self
.msg
.param
.get_int(Param::ForcePlaintext)
.unwrap_or_default();
if force_plaintext == 0 {
e2ee_guaranteed = self
.msg
.param
.get_int(Param::GuranteeE2ee)
.unwrap_or_default()
!= 0;
}
}
/* beside key- and member-changes, force re-gossip every 48 hours */
if chat.gossiped_timestamp == 0
|| (chat.gossiped_timestamp + (2 * 24 * 60 * 60)) < time()
{
do_gossip = true
}
/* build header etc. */
let command = self.msg.param.get_cmd();
if chat.typ == Chattype::Group || chat.typ == Chattype::VerifiedGroup {
wrapmime::new_custom_field(imf_fields, "Chat-Group-ID", &chat.grpid);
let encoded = dc_encode_header_words(&chat.name);
wrapmime::new_custom_field(imf_fields, "Chat-Group-Name", &encoded);
match command {
SystemMessage::MemberRemovedFromGroup => {
let email_to_remove =
self.msg.param.get(Param::Arg).unwrap_or_default();
if !email_to_remove.is_empty() {
wrapmime::new_custom_field(
imf_fields,
"Chat-Group-Member-Removed",
&email_to_remove,
);
}
}
SystemMessage::MemberAddedToGroup => {
let msg = &self.msg;
do_gossip = true;
let email_to_add = msg.param.get(Param::Arg).unwrap_or_default();
if !email_to_add.is_empty() {
wrapmime::new_custom_field(
imf_fields,
"Chat-Group-Member-Added",
&email_to_add,
);
grpimage = chat.param.get(Param::ProfileImage);
}
if 0 != msg.param.get_int(Param::Arg2).unwrap_or_default() & 0x1 {
info!(
context,
"sending secure-join message \'{}\' >>>>>>>>>>>>>>>>>>>>>>>>>",
"vg-member-added",
);
wrapmime::new_custom_field(
imf_fields,
"Secure-Join",
"vg-member-added",
);
}
}
SystemMessage::GroupNameChanged => {
let msg = &self.msg;
let value_to_add = msg.param.get(Param::Arg).unwrap_or_default();
wrapmime::new_custom_field(
imf_fields,
"Chat-Group-Name-Changed",
&value_to_add,
);
}
SystemMessage::GroupImageChanged => {
let msg = &self.msg;
grpimage = msg.param.get(Param::Arg);
if grpimage.is_none() {
wrapmime::new_custom_field(imf_fields, "Chat-Group-Image", "0");
}
}
_ => {}
}
}
match command {
SystemMessage::LocationStreamingEnabled => {
wrapmime::new_custom_field(
imf_fields,
"Chat-Content",
"location-streaming-enabled",
);
}
SystemMessage::AutocryptSetupMessage => {
wrapmime::new_custom_field(imf_fields, "Autocrypt-Setup-Message", "v1");
placeholdertext = Some(
self.context
.stock_str(StockMessage::AcSetupMsgBody)
.to_string(),
);
}
SystemMessage::SecurejoinMessage => {
let msg = &self.msg;
let step = msg.param.get(Param::Arg).unwrap_or_default();
if !step.is_empty() {
info!(
context,
"sending secure-join message \'{}\' >>>>>>>>>>>>>>>>>>>>>>>>>",
step,
);
wrapmime::new_custom_field(imf_fields, "Secure-Join", &step);
let param2 = msg.param.get(Param::Arg2).unwrap_or_default();
if !param2.is_empty() {
wrapmime::new_custom_field(
imf_fields,
if step == "vg-request-with-auth"
|| step == "vc-request-with-auth"
{
"Secure-Join-Auth"
} else {
"Secure-Join-Invitenumber"
},
param2,
)
}
let fingerprint = msg.param.get(Param::Arg3).unwrap_or_default();
if !fingerprint.is_empty() {
wrapmime::new_custom_field(
imf_fields,
"Secure-Join-Fingerprint",
&fingerprint,
);
}
match msg.param.get(Param::Arg4) {
Some(id) => {
wrapmime::new_custom_field(
imf_fields,
"Secure-Join-Group",
&id,
);
}
None => {}
};
}
}
_ => {}
}
if let Some(grpimage) = grpimage {
info!(self.context, "setting group image '{}'", grpimage);
let mut meta = Message::default();
meta.type_0 = Viewtype::Image;
meta.param.set(Param::File, grpimage);
let res = build_body_file(context, &meta, "group-image")?;
meta_part = res.0;
let filename_as_sent = res.1;
if !meta_part.is_null() {
wrapmime::new_custom_field(
imf_fields,
"Chat-Group-Image",
&filename_as_sent,
)
}
}
if self.msg.type_0 == Viewtype::Voice
|| self.msg.type_0 == Viewtype::Audio
|| self.msg.type_0 == Viewtype::Video
{
if self.msg.type_0 == Viewtype::Voice {
wrapmime::new_custom_field(imf_fields, "Chat-Voice-Message", "1");
}
let duration_ms = self.msg.param.get_int(Param::Duration).unwrap_or_default();
if duration_ms > 0 {
let dur = duration_ms.to_string();
wrapmime::new_custom_field(imf_fields, "Chat-Duration", &dur);
}
}
/* add text part - we even add empty text and force a MIME-multipart-message as:
- some Apps have problems with Non-text in the main part (eg. "Mail" from stock Android)
- we can add "forward hints" this way
- it looks better */
let afwd_email = self.msg.param.exists(Param::Forwarded);
let fwdhint = if afwd_email {
Some(
"---------- Forwarded message ----------\r\nFrom: Delta Chat\r\n\r\n"
.to_string(),
)
} else {
None
};
let final_text = {
if let Some(ref text) = placeholdertext {
text
} else if let Some(ref text) = self.msg.text {
text
} else {
""
}
};
let footer = &self.selfstatus;
let message_text = format!(
"{}{}{}{}{}",
fwdhint.unwrap_or_default(),
&final_text,
if !final_text.is_empty() && !footer.is_empty() {
"\r\n\r\n"
} else {
""
},
if !footer.is_empty() { "-- \r\n" } else { "" },
footer
);
let text_part = wrapmime::build_body_text(&message_text)?;
mailmime_smart_add_part(message, text_part);
/* add attachment part */
if chat::msgtype_has_file(self.msg.type_0) {
if !is_file_size_okay(context, &self.msg) {
cleanup(message);
bail!(
"Message exceeds the recommended {} MB.",
24 * 1024 * 1024 / 4 * 3 / 1000 / 1000,
);
} else {
let (file_part, _) = build_body_file(context, &self.msg, "")?;
mailmime_smart_add_part(message, file_part);
}
}
if !meta_part.is_null() {
mailmime_smart_add_part(message, meta_part);
}
if self.msg.param.exists(Param::SetLatitude) {
let param = &self.msg.param;
let kml_file = location::get_message_kml(
self.msg.timestamp_sort,
param.get_float(Param::SetLatitude).unwrap_or_default(),
param.get_float(Param::SetLongitude).unwrap_or_default(),
);
wrapmime::add_filename_part(
message,
"message.kml",
"application/vnd.google-earth.kml+xml",
&kml_file,
)?;
}
if location::is_sending_locations_to_chat(context, self.msg.chat_id) {
if let Ok((kml_file, last_added_location_id)) =
location::get_kml(context, self.msg.chat_id)
{
wrapmime::add_filename_part(
message,
"location.kml",
"application/vnd.google-earth.kml+xml",
&kml_file,
)?;
if !self.msg.param.exists(Param::SetLatitude) {
// otherwise, the independent location is already filed
self.out_last_added_location_id = last_added_location_id;
}
}
}
get_subject(context, self.chat.as_ref(), &mut self.msg, afwd_email)
}
Loaded::MDN => {
/* Render a MDN
*********************************************************************/
/* RFC 6522, this also requires the `report-type` parameter which is equal
to the MIME subtype of the second body part of the multipart/report */
let multipart = mailmime_multiple_new(
b"multipart/report\x00" as *const u8 as *const libc::c_char,
);
wrapmime::append_ct_param(
(*multipart).mm_content_type,
"report-type",
"disposition-notification",
)?;
mailmime_add_part(message, multipart);
/* first body part: always human-readable, always REQUIRED by RFC 6522 */
let p1 = if 0
!= self
.msg
.param
.get_int(Param::GuranteeE2ee)
.unwrap_or_default()
{
self.context
.stock_str(StockMessage::EncryptedMsg)
.into_owned()
} else {
self.msg.get_summarytext(context, 32)
};
let p2 = self
.context
.stock_string_repl_str(StockMessage::ReadRcptMailBody, p1);
let message_text = format!("{}\r\n", p2);
let human_mime_part = wrapmime::build_body_text(&message_text)?;
mailmime_add_part(multipart, human_mime_part);
/* second body part: machine-readable, always REQUIRED by RFC 6522 */
let version = get_version_str();
let message_text2 = format!(
"Reporting-UA: Delta Chat {}\r\nOriginal-Recipient: rfc822;{}\r\nFinal-Recipient: rfc822;{}\r\nOriginal-Message-ID: <{}>\r\nDisposition: manual-action/MDN-sent-automatically; displayed\r\n",
version,
self.from_addr,
self.from_addr,
self.msg.rfc724_mid
);
let content_type_0 =
wrapmime::new_content_type("message/disposition-notification")?;
let mime_fields_0: *mut mailmime_fields =
mailmime_fields_new_encoding(MAILMIME_MECHANISM_8BIT as libc::c_int);
let mach_mime_part: *mut mailmime =
mailmime_new_empty(content_type_0, mime_fields_0);
wrapmime::set_body_text(mach_mime_part, &message_text2)?;
mailmime_add_part(multipart, mach_mime_part);
force_plaintext = DC_FP_NO_AUTOCRYPT_HEADER;
info!(context, "sending MDM {:?}", message_text2);
/* currently, we do not send MDNs encrypted:
- in a multi-device-setup that is not set up properly, MDNs would disturb the communication as they
are send automatically which may lead to spreading outdated Autocrypt headers.
- they do not carry any information but the Message-ID
- this save some KB
- in older versions, we did not encrypt messages to ourself when they to to SMTP - however, if these messages
are forwarded for any reasons (eg. gmail always forwards to IMAP), we have no chance to decrypt them;
this issue is fixed with 0.9.4 */
let e = self.context.stock_str(StockMessage::ReadRcpt);
format!("Chat: {}", e).to_string()
}
_ => {
cleanup(message);
bail!("No message loaded.");
}
};
/* Create the mime message
*************************************************************************/
mailimf_fields_add(
imf_fields,
mailimf_field_new(
MAILIMF_FIELD_SUBJECT as libc::c_int,
ptr::null_mut(),
ptr::null_mut(),
ptr::null_mut(),
ptr::null_mut(),
ptr::null_mut(),
ptr::null_mut(),
ptr::null_mut(),
ptr::null_mut(),
ptr::null_mut(),
ptr::null_mut(),
ptr::null_mut(),
ptr::null_mut(),
ptr::null_mut(),
ptr::null_mut(),
ptr::null_mut(),
ptr::null_mut(),
ptr::null_mut(),
ptr::null_mut(),
mailimf_subject_new(dc_encode_header_words(subject_str).strdup()),
ptr::null_mut(),
ptr::null_mut(),
ptr::null_mut(),
),
);
/*just a pointer into mailmime structure, must not be freed*/
let imffields_unprotected = mailmime_find_mailimf_fields(message);
ensure!(
!imffields_unprotected.is_null(),
"could not find mime fields"
);
let mut encrypt_helper = EncryptHelper::new(&context)?;
if force_plaintext != DC_FP_NO_AUTOCRYPT_HEADER {
// unless determined otherwise we add Autocrypt header
let aheader = encrypt_helper.get_aheader().to_string();
wrapmime::new_custom_field(imffields_unprotected, "Autocrypt", &aheader);
}
let mut finalized = false;
if force_plaintext == 0 {
finalized = encrypt_helper.try_encrypt(
self,
e2ee_guaranteed,
min_verified,
do_gossip,
message,
imffields_unprotected,
)?;
}
if !finalized {
self.finalize_mime_message(message, false, false)?;
}
cleanup(message);
Ok(())
}
pub fn load_msg(context: &Context, msg_id: u32) -> Result<MimeFactory, Error> {
ensure!(msg_id > DC_CHAT_ID_LAST_SPECIAL, "Invalid chat id");
let msg = Message::load_from_db(context, msg_id)?;
let chat = Chat::load_from_db(context, msg.chat_id)?;
let mut factory = MimeFactory::new(context, msg);
factory.chat = Some(chat);
// just set the chat above
let chat = factory.chat.as_ref().unwrap();
if chat.is_self_talk() {
factory
.recipients_names
.push(factory.from_displayname.to_string());
factory.recipients_addr.push(factory.from_addr.to_string());
} else {
context
.sql
.query_map(
"SELECT c.authname, c.addr \
FROM chats_contacts cc \
LEFT JOIN contacts c ON cc.contact_id=c.id \
WHERE cc.chat_id=? AND cc.contact_id>9;",
params![factory.msg.chat_id as i32],
|row| {
let authname: String = row.get(0)?;
let addr: String = row.get(1)?;
Ok((authname, addr))
},
|rows| {
for row in rows {
let (authname, addr) = row?;
if !vec_contains_lowercase(&factory.recipients_addr, &addr) {
factory.recipients_addr.push(addr);
factory.recipients_names.push(authname);
}
}
Ok(())
},
)
.unwrap();
let command = factory.msg.param.get_cmd();
let msg = &factory.msg;
/* for added members, the list is just fine */
if command == SystemMessage::MemberRemovedFromGroup {
let email_to_remove = msg.param.get(Param::Arg).unwrap_or_default();
let self_addr = context
.sql
.get_config(context, "configured_addr")
.unwrap_or_default();
if !email_to_remove.is_empty() && email_to_remove != self_addr {
if !vec_contains_lowercase(&factory.recipients_addr, &email_to_remove) {
factory.recipients_names.push("".to_string());
factory.recipients_addr.push(email_to_remove.to_string());
}
}
}
if command != SystemMessage::AutocryptSetupMessage
&& command != SystemMessage::SecurejoinMessage
&& 0 != context
.sql
.get_config_int(context, "mdns_enabled")
.unwrap_or_else(|| 1)
{
factory.req_mdn = true;
}
}
let row = context.sql.query_row(
"SELECT mime_in_reply_to, mime_references FROM msgs WHERE id=?",
params![factory.msg.id as i32],
|row| {
let in_reply_to: String = row.get(0)?;
let references: String = row.get(1)?;
Ok((in_reply_to, references))
},
);
match row {
Ok((in_reply_to, references)) => {
factory.in_reply_to = in_reply_to;
factory.references = references;
}
Err(err) => {
error!(
context,
"mimefactory: failed to load mime_in_reply_to: {:?}", err
);
}
}
factory.loaded = Loaded::Message;
factory.timestamp = factory.msg.timestamp_sort;
factory.rfc724_mid = factory.msg.rfc724_mid.clone();
factory.increation = factory.msg.is_increation();
Ok(factory)
}
}
impl<'a> Drop for MimeFactory<'a> {
fn drop(&mut self) {
unsafe {
if !self.out.is_null() {
mmap_string_free(self.out);
}
}
}
}
fn get_subject(
context: &Context,
chat: Option<&Chat>,
msg: &mut Message,
afwd_email: bool,
) -> String {
if chat.is_none() {
return String::default();
}
let chat = chat.unwrap();
let raw_subject =
message::get_summarytext_by_raw(msg.type_0, msg.text.as_ref(), &mut msg.param, 32, context);
let fwd = if afwd_email { "Fwd: " } else { "" };
if msg.param.get_cmd() == SystemMessage::AutocryptSetupMessage {
/* do not add the "Chat:" prefix for setup messages */
context
.stock_str(StockMessage::AcSetupMsgSubject)
.into_owned()
} else if chat.typ == Chattype::Group || chat.typ == Chattype::VerifiedGroup {
format!("Chat: {}: {}{}", chat.name, fwd, raw_subject,)
} else {
format!("Chat: {}{}", fwd, raw_subject)
}
}
#[allow(non_snake_case)]
fn build_body_file(
context: &Context,
msg: &Message,
base_name: &str,
) -> Result<(*mut mailmime, String), Error> {
let path_filename = match msg.param.get(Param::File) {
None => {
bail!("msg has no filename");
}
Some(path) => path,
};
let suffix = dc_get_filesuffix_lc(path_filename).unwrap_or_else(|| "dat".into());
/* get file name to use for sending
(for privacy purposes, we do not transfer the original filenames eg. for images;
these names are normally not needed and contain timestamps, running numbers etc.) */
let filename_to_send = match msg.type_0 {
Viewtype::Voice => chrono::Utc
.timestamp(msg.timestamp_sort as i64, 0)
.format(&format!("voice-message_%Y-%m-%d_%H-%M-%S.{}", suffix))
.to_string(),
Viewtype::Audio => Path::new(path_filename)
.file_name()
.map(|c| c.to_string_lossy().to_string())
.unwrap_or_default(),
Viewtype::Image | Viewtype::Gif => format!(
"{}.{}",
if base_name.is_empty() {
"image"
} else {
base_name
},
&suffix,
),
Viewtype::Video => format!("video.{}", &suffix),
_ => Path::new(path_filename)
.file_name()
.map(|c| c.to_string_lossy().to_string())
.unwrap_or_default(),
};
/* check mimetype */
let mimetype = match msg.param.get(Param::MimeType) {
Some(mtype) => mtype,
None => {
let path = Path::new(path_filename);
if let Some(res) = message::guess_msgtype_from_suffix(&path) {
res.1
} else {
"application/octet-stream"
}
}
};
let needs_ext = dc_needs_ext_header(&filename_to_send);
unsafe {
/* create mime part, for Content-Disposition, see RFC 2183.
`Content-Disposition: attachment` seems not to make a difference to `Content-Disposition: inline` at least on tested Thunderbird and Gma'l in 2017.
But I've heard about problems with inline and outl'k, so we just use the attachment-type until we run into other problems ... */
let mime_fields = mailmime_fields_new_filename(
MAILMIME_DISPOSITION_TYPE_ATTACHMENT as libc::c_int,
if needs_ext {
ptr::null_mut()
} else {
filename_to_send.strdup()
},
MAILMIME_MECHANISM_BASE64 as libc::c_int,
);
if needs_ext {
for cur_data in (*(*mime_fields).fld_list).into_iter() {
let field: *mut mailmime_field = cur_data as *mut _;
if (*field).fld_type == MAILMIME_FIELD_DISPOSITION as libc::c_int
&& !(*field).fld_data.fld_disposition.is_null()
{
let file_disposition = (*field).fld_data.fld_disposition;
if !file_disposition.is_null() {
let parm = mailmime_disposition_parm_new(
MAILMIME_DISPOSITION_PARM_PARAMETER as libc::c_int,
ptr::null_mut(),
ptr::null_mut(),
ptr::null_mut(),
ptr::null_mut(),
0 as libc::size_t,
mailmime_parameter_new(
strdup(b"filename*\x00" as *const u8 as *const libc::c_char),
dc_encode_ext_header(&filename_to_send).strdup(),
),
);
if !parm.is_null() {
clist_insert_after(
(*file_disposition).dsp_parms,
(*(*file_disposition).dsp_parms).last,
parm as *mut libc::c_void,
);
}
}
break;
}
}
}
let content = wrapmime::new_content_type(&mimetype)?;
let filename_encoded = dc_encode_header_words(&filename_to_send);
wrapmime::append_ct_param(content, "name", &filename_encoded)?;
let mime_sub = mailmime_new_empty(content, mime_fields);
let abs_path = dc_get_abs_path(context, path_filename)
.to_c_string()
.unwrap();
mailmime_set_body_file(mime_sub, dc_strdup(abs_path.as_ptr()));
Ok((mime_sub, filename_to_send))
}
}
pub(crate) fn vec_contains_lowercase(vec: &Vec<String>, part: &str) -> bool {
let partlc = part.to_lowercase();
for cur in vec.iter() {
if cur.to_lowercase() == partlc {
return true;
}
}
false
}
fn is_file_size_okay(context: &Context, msg: &Message) -> bool {
let mut file_size_okay = true;
let path = msg.param.get(Param::File).unwrap_or_default();
let bytes = dc_get_filebytes(context, &path);
if bytes > (49 * 1024 * 1024 / 4 * 3) {
file_size_okay = false;
}
file_size_okay
}

View File

@@ -522,7 +522,9 @@ pub fn handle_securejoin_handshake(
error!(context, "Chat {} not found.", &field_grpid);
return ret;
} else {
chat::add_contact_to_chat_ex(context, group_chat_id, contact_id, true);
if let Err(err) = chat::add_contact_to_chat_ex(context, group_chat_id, contact_id, true) {
error!(context, "failed to add contact: {}", err);
}
}
} else {
send_handshake_msg(context, contact_chat_id, "vc-contact-confirm", "", None, "");