sensor-watch/movement/watch_faces/complication/totp_face.h
Nicholas Rodrigues Lordello a4fc048f94
Update TOTP Face Documentation
The TOTP face header file documentation contained outdated instructions
for configuring the complication with TOTP credentials. This PR updates
the documentation to match what is expected in `totp_face.c`.
2024-08-22 14:53:17 +02:00

95 lines
3.6 KiB
C

/* SPDX-License-Identifier: MIT */
/*
* MIT License
*
* Copyright © 2021 Wesley Ellis (https://github.com/tahnok)
* Copyright © 2021-2022 Joey Castillo <joeycastillo@utexas.edu>
* Copyright © 2022 Alexsander Akers <me@a2.io>
* Copyright © 2022 Jack Bond-Preston <jackbondpreston@outlook.com>
* Copyright © 2023 Alex Utter <ooterness@gmail.com>
* Copyright © 2024 Matheus Afonso Martins Moreira <matheus.a.m.moreira@gmail.com> (https://www.matheusmoreira.com/)
* Copyright © 2024 Max Zettlmeißl <max@zettlmeissl.de>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef TOTP_FACE_H_
#define TOTP_FACE_H_
/*
* TOTP face
* Time-based one-time password (TOTP) generator
*
* Generate one-time passwords often used for two-factor authentication.
* The secret key must be set by hand, by editing "totp_face.c".
*
* Available algorithms:
* o SHA1 (most TOTP codes use this)
* o SHA224
* o SHA256
* o SHA384
* o SHA512
*
* Instructions:
* o Find your secret key(s).
* o Use https://github.com/susam/mintotp to generate test codes for
* verification
* o Edit global `credentials` variable in "totp_face.c" to configure your
* TOTP credentials. The file includes two examples that you can use as a
* reference. Credentials are added with the `CREDENTIAL` macro in the form
* `CREDENTIAL(label, key, algorithm, timestep)` where:
* o `label` is a 2 character label that is displayed in the weekday digits
* to identify the TOTP credential.
* o `key` is a string with the base32 encoded secret.
* o `algorithm` is one of the supported hashing algorithms listed above.
* o `timestep` is how often the TOTP refreshes in seconds. This is usually
* 30 seconds.
*
* If you have more than one secret key, press ALARM to cycle through them.
* Press LIGHT to cycle in the other direction or keep it pressed longer to
* activate the light.
*/
#include "movement.h"
typedef struct {
uint32_t timestamp;
uint8_t steps;
uint32_t current_code;
uint8_t current_index;
uint8_t *current_decoded_key;
size_t current_decoded_key_length;
} totp_state_t;
void totp_face_setup(movement_settings_t *settings, uint8_t watch_face_index, void ** context_ptr);
void totp_face_activate(movement_settings_t *settings, void *context);
bool totp_face_loop(movement_event_t event, movement_settings_t *settings, void *context);
void totp_face_resign(movement_settings_t *settings, void *context);
#define totp_face ((const watch_face_t){ \
totp_face_setup, \
totp_face_activate, \
totp_face_loop, \
totp_face_resign, \
NULL, \
})
#endif // TOTP_FACE_H_