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Send and receive backup over network using QR code

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This adds functionality to send and receive a backup over the network
using a QR code.

The sender or provider prepares the backup, sets up a server that
waits for clients.  It provides a ticket in the form of a QR code
which contains connection and authentication information.

The receiver uses the QR code to connect to the provider and fetches
backup, restoring it locally.
This commit is contained in:
Floris Bruynooghe
2023-02-01 16:45:09 +01:00
parent e318f5c697
commit 6044e5961b
9 changed files with 1265 additions and 77 deletions
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9
deltachat-ffi/deltachat.h
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@@ -2320,7 +2320,7 @@ void dc_stop_ongoing_process (dc_context_t* context);
* ask whether to verify the contact;
* if so, start the protocol with dc_join_securejoin().
*
* - DC_QR_ASK_VERIFYGROUP withdc_lot_t::text1=Group name:
* - DC_QR_ASK_VERIFYGROUP with dc_lot_t::text1=Group name:
* ask whether to join the group;
* if so, start the protocol with dc_join_securejoin().
*
@@ -2340,6 +2340,10 @@ void dc_stop_ongoing_process (dc_context_t* context);
* ask the user if they want to create an account on the given domain,
* if so, call dc_set_config_from_qr() and then dc_configure().
*
* - DC_QR_BACKUP:
* ask the user if they want to set up a new device.
* If so, pass the qr-code to dc_receive_backup().
*
* - DC_QR_WEBRTC_INSTANCE with dc_lot_t::text1=domain:
* ask the user if they want to use the given service for video chats;
* if so, call dc_set_config_from_qr().
@@ -2630,6 +2634,9 @@ char* dc_get_last_error (dc_context_t* context);
void dc_str_unref (char* str);
// TODO: add New stuff
/**
* @class dc_accounts_t
*