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feat: Verified 1:1 chats (#4315)
Implement #4188 BREAKING CHANGE: Remove unused DC_STR_PROTECTION_(EN)ABLED* strings BREAKING CHANGE: Remove unused dc_set_chat_protection()
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@@ -485,6 +485,13 @@ char* dc_get_blobdir (const dc_context_t* context);
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* to not mess up with non-delivery-reports or read-receipts.
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* 0=no limit (default).
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* Changes affect future messages only.
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* - `verified_one_on_one_chats` = Feature flag for verified 1:1 chats; the UI should set it
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* to 1 if it supports verified 1:1 chats.
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* Regardless of this setting, `dc_chat_is_protected()` returns true while the key is verified,
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* and when the key changes, an info message is posted into the chat.
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* 0=Nothing else happens when the key changes.
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* 1=After the key changed, `dc_chat_can_send()` returns false and `dc_chat_is_protection_broken()` returns true
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* until `dc_accept_chat()` is called.
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* - `ui.*` = All keys prefixed by `ui.` can be used by the user-interfaces for system-specific purposes.
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* The prefix should be followed by the system and maybe subsystem,
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* e.g. `ui.desktop.foo`, `ui.desktop.linux.bar`, `ui.android.foo`, `ui.dc40.bar`, `ui.bot.simplebot.baz`.
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@@ -1470,24 +1477,6 @@ dc_array_t* dc_get_chat_media (dc_context_t* context, uint32_t ch
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uint32_t dc_get_next_media (dc_context_t* context, uint32_t msg_id, int dir, int msg_type, int msg_type2, int msg_type3);
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/**
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* Enable or disable protection against active attacks.
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* To enable protection, it is needed that all members are verified;
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* if this condition is met, end-to-end-encryption is always enabled
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* and only the verified keys are used.
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*
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* Sends out #DC_EVENT_CHAT_MODIFIED on changes
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* and #DC_EVENT_MSGS_CHANGED if a status message was sent.
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*
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* @memberof dc_context_t
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* @param context The context object as returned from dc_context_new().
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* @param chat_id The ID of the chat to change the protection for.
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* @param protect 1=protect chat, 0=unprotect chat
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* @return 1=success, 0=error, e.g. some members may be unverified
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*/
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int dc_set_chat_protection (dc_context_t* context, uint32_t chat_id, int protect);
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/**
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* Set chat visibility to pinned, archived or normal.
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*
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@@ -3712,7 +3701,6 @@ int dc_chat_can_send (const dc_chat_t* chat);
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* Check if a chat is protected.
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* Protected chats contain only verified members and encryption is always enabled.
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* Protected chats are created using dc_create_group_chat() by setting the 'protect' parameter to 1.
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* The status can be changed using dc_set_chat_protection().
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*
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* @memberof dc_chat_t
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* @param chat The chat object.
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@@ -3721,6 +3709,26 @@ int dc_chat_can_send (const dc_chat_t* chat);
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int dc_chat_is_protected (const dc_chat_t* chat);
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/**
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* Checks if the chat was protected, and then an incoming message broke this protection.
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*
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* This function is only useful if the UI enabled the `verified_one_on_one_chats` feature flag,
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* otherwise it will return false for all chats.
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*
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* 1:1 chats are automatically set as protected when a contact is verified.
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* When a message comes in that is not encrypted / signed correctly,
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* the chat is automatically set as unprotected again.
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* dc_chat_is_protection_broken() will return true until dc_accept_chat() is called.
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*
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* The UI should let the user confirm that this is OK with a message like
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* `Bob sent a message from another device. Tap to learn more` and then call dc_accept_chat().
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* @memberof dc_chat_t
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* @param chat The chat object.
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* @return 1=chat protection broken, 0=otherwise.
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*/
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int dc_chat_is_protection_broken (const dc_chat_t* chat);
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/**
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* Check if locations are sent to the chat
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* at the time the object was created using dc_get_chat().
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@@ -4315,7 +4323,7 @@ int dc_msg_is_forwarded (const dc_msg_t* msg);
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* Check if the message is an informational message, created by the
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* device or by another users. Such messages are not "typed" by the user but
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* created due to other actions,
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* e.g. dc_set_chat_name(), dc_set_chat_profile_image(), dc_set_chat_protection()
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* e.g. dc_set_chat_name(), dc_set_chat_profile_image(),
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* or dc_add_contact_to_chat().
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*
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* These messages are typically shown in the center of the chat view,
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@@ -6749,15 +6757,6 @@ void dc_event_unref(dc_event_t* event);
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/// Used in error strings.
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#define DC_STR_ERROR_NO_NETWORK 87
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/// "Chat protection enabled."
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///
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/// @deprecated Deprecated, replaced by DC_STR_MSG_YOU_ENABLED_PROTECTION and DC_STR_MSG_PROTECTION_ENABLED_BY.
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#define DC_STR_PROTECTION_ENABLED 88
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/// @deprecated Deprecated, replaced by DC_STR_MSG_YOU_DISABLED_PROTECTION and DC_STR_MSG_PROTECTION_DISABLED_BY.
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#define DC_STR_PROTECTION_DISABLED 89
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/// "Reply"
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///
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/// Used in summaries.
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@@ -7202,26 +7201,6 @@ void dc_event_unref(dc_event_t* event);
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/// `%2$s` will be replaced by name and address of the contact.
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#define DC_STR_EPHEMERAL_TIMER_WEEKS_BY_OTHER 157
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/// "You enabled chat protection."
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///
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/// Used in status messages.
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#define DC_STR_PROTECTION_ENABLED_BY_YOU 158
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/// "Chat protection enabled by %1$s."
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///
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/// `%1$s` will be replaced by name and address of the contact.
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///
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/// Used in status messages.
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#define DC_STR_PROTECTION_ENABLED_BY_OTHER 159
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/// "You disabled chat protection."
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#define DC_STR_PROTECTION_DISABLED_BY_YOU 160
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/// "Chat protection disabled by %1$s."
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///
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/// `%1$s` will be replaced by name and address of the contact.
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#define DC_STR_PROTECTION_DISABLED_BY_OTHER 161
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/// "Scan to set up second device for %1$s"
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///
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/// `%1$s` will be replaced by name and address of the account.
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@@ -7232,6 +7211,16 @@ void dc_event_unref(dc_event_t* event);
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/// Used as a device message after a successful backup transfer.
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#define DC_STR_BACKUP_TRANSFER_MSG_BODY 163
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/// "Messages are guaranteed to be end-to-end encrypted from now on."
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///
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/// Used in info messages.
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#define DC_STR_CHAT_PROTECTION_ENABLED 170
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/// "%1$s sent a message from another device."
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///
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/// Used in info messages.
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#define DC_STR_CHAT_PROTECTION_DISABLED 171
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/**
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* @}
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*/
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@@ -1429,32 +1429,6 @@ pub unsafe extern "C" fn dc_get_next_media(
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})
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}
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#[no_mangle]
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pub unsafe extern "C" fn dc_set_chat_protection(
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context: *mut dc_context_t,
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chat_id: u32,
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protect: libc::c_int,
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) -> libc::c_int {
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if context.is_null() {
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eprintln!("ignoring careless call to dc_set_chat_protection()");
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return 0;
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}
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let ctx = &*context;
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let protect = if let Some(s) = ProtectionStatus::from_i32(protect) {
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s
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} else {
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warn!(ctx, "bad protect-value for dc_set_chat_protection()");
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return 0;
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};
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block_on(async move {
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match ChatId::new(chat_id).set_protection(ctx, protect).await {
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Ok(()) => 1,
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Err(_) => 0,
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}
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})
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}
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#[no_mangle]
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pub unsafe extern "C" fn dc_set_chat_visibility(
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context: *mut dc_context_t,
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@@ -3084,6 +3058,16 @@ pub unsafe extern "C" fn dc_chat_is_protected(chat: *mut dc_chat_t) -> libc::c_i
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ffi_chat.chat.is_protected() as libc::c_int
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}
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#[no_mangle]
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pub unsafe extern "C" fn dc_chat_is_protection_broken(chat: *mut dc_chat_t) -> libc::c_int {
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if chat.is_null() {
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eprintln!("ignoring careless call to dc_chat_is_protection_broken()");
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return 0;
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}
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let ffi_chat = &*chat;
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ffi_chat.chat.is_protection_broken() as libc::c_int
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}
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#[no_mangle]
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pub unsafe extern "C" fn dc_chat_is_sending_locations(chat: *mut dc_chat_t) -> libc::c_int {
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if chat.is_null() {
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