security/howdy: Face recognition based authentication provider.

Co-authored-by:	Alexey Donskov <voxnod@gmail.com>
Co-authored-by: Gleb Popov <arrowd@FreeBSD.org>

Sponsored by:	Serenity Cybersecurity, LLC

1 files changed, 429 insertions, 0 deletions

diff --git a/security/howdy/files/patch-paths b/security/howdy/files/patch-paths
new file mode 100644
index 000000000000..57e375f2dea5
--- /dev/null
+++ b/security/howdy/files/patch-paths
@@ -0,0 +1,429 @@
+From 30034c66d72e8e15e2ad5db68d1a5940df2568b6 Mon Sep 17 00:00:00 2001
+From: Gleb Popov <6yearold@gmail.com>
+Date: Thu, 30 Mar 2023 21:55:11 +0300
+Subject: [PATCH] Put all path variables into a separate module.
+
+This makes it easier for downstream packagers to customize where howdy installs
+its files.
+---
+ howdy/src/cli/add.py     | 22 ++++++++++------------
+ howdy/src/cli/clear.py   |  9 ++++-----
+ howdy/src/cli/config.py  |  3 ++-
+ howdy/src/cli/disable.py |  3 ++-
+ howdy/src/cli/list.py    |  7 +++----
+ howdy/src/cli/remove.py  |  9 ++++-----
+ howdy/src/cli/set.py     |  3 ++-
+ howdy/src/cli/snap.py    |  5 ++---
+ howdy/src/cli/test.py    | 11 ++++++-----
+ howdy/src/compare.py     | 18 ++++++++----------
+ howdy/src/paths.py       | 12 ++++++++++++
+ howdy/src/snapshot.py    | 15 ++++++---------
+ 12 files changed, 61 insertions(+), 56 deletions(-)
+ create mode 100644 howdy/src/paths.py
+
+diff --git a/howdy/src/cli/add.py b/howdy/src/cli/add.py
+index 7a6d9eca..5a63bdfe 100644
+--- a/howdy/src/cli/add.py
++++ ./howdy/src/cli/add.py
+@@ -8,6 +8,7 @@
+ import configparser
+ import builtins
+ import numpy as np
++import paths
+
+ from recorders.video_capture import VideoCapture
+ from i18n import _
+@@ -26,39 +27,36 @@
+ # OpenCV needs to be imported after dlib
+ import cv2
+
+-# Define the absolute path to the config directory
+-config_path = "/etc/howdy"
+-
+ # Test if at lest 1 of the data files is there and abort if it's not
+-if not os.path.isfile(config_path + "/dlib-data/shape_predictor_5_face_landmarks.dat"):
++if not os.path.isfile(paths.dlib_data_dir + "shape_predictor_5_face_landmarks.dat"):
+ 	print(_("Data files have not been downloaded, please run the following commands:"))
+-	print("\n\tcd " + config_path + "/dlib-data")
++	print("\n\tcd " + paths.dlib_data_dir)
+ 	print("\tsudo ./install.sh\n")
+ 	sys.exit(1)
+
+ # Read config from disk
+ config = configparser.ConfigParser()
+-config.read(config_path + "/config.ini")
++config.read(paths.config_dir + "/config.ini")
+
+ use_cnn = config.getboolean("core", "use_cnn", fallback=False)
+ if use_cnn:
+-	face_detector = dlib.cnn_face_detection_model_v1(config_path + "/dlib-data/mmod_human_face_detector.dat")
++	face_detector = dlib.cnn_face_detection_model_v1(paths.dlib_data_dir + "mmod_human_face_detector.dat")
+ else:
+ 	face_detector = dlib.get_frontal_face_detector()
+
+-pose_predictor = dlib.shape_predictor(config_path + "/dlib-data/shape_predictor_5_face_landmarks.dat")
+-face_encoder = dlib.face_recognition_model_v1(config_path + "/dlib-data/dlib_face_recognition_resnet_model_v1.dat")
++pose_predictor = dlib.shape_predictor(paths.dlib_data_dir + "shape_predictor_5_face_landmarks.dat")
++face_encoder = dlib.face_recognition_model_v1(paths.dlib_data_dir + "dlib_face_recognition_resnet_model_v1.dat")
+
+ user = builtins.howdy_user
+ # The permanent file to store the encoded model in
+-enc_file = config_path + "/models/" + user + ".dat"
++enc_file = paths.user_models_dir + user + ".dat"
+ # Known encodings
+ encodings = []
+
+ # Make the ./models folder if it doesn't already exist
+-if not os.path.exists(config_path + "/models"):
++if not os.path.exists(paths.user_models_dir):
+ 	print(_("No face model folder found, creating one"))
+-	os.makedirs(config_path + "/models")
++	os.makedirs(paths.user_models_dir)
+
+ # To try read a premade encodings file if it exists
+ try:
+diff --git a/howdy/src/cli/clear.py b/howdy/src/cli/clear.py
+index 6fa5f3ef..aa43e152 100644
+--- a/howdy/src/cli/clear.py
++++ ./howdy/src/cli/clear.py
+@@ -4,21 +4,20 @@
+ import os
+ import sys
+ import builtins
++import paths
+
+ from i18n import _
+
+-# Get the full path to this file
+-path = "/etc/howdy/models"
+ # Get the passed user
+ user = builtins.howdy_user
+
+ # Check if the models folder is there
+-if not os.path.exists(path):
++if not os.path.exists(paths.user_models_dir):
+ 	print(_("No models created yet, can't clear them if they don't exist"))
+ 	sys.exit(1)
+
+ # Check if the user has a models file to delete
+-if not os.path.isfile(path + "/" + user + ".dat"):
++if not os.path.isfile(paths.user_models_dir + user + ".dat"):
+ 	print(_("{} has no models or they have been cleared already").format(user))
+ 	sys.exit(1)
+
+@@ -34,5 +33,5 @@
+ 		sys.exit(1)
+
+ # Delete otherwise
+-os.remove(path + "/" + user + ".dat")
++os.remove(paths.user_models_dir + user + ".dat")
+ print(_("\nModels cleared"))
+diff --git a/howdy/src/cli/config.py b/howdy/src/cli/config.py
+index 71064839..04c51798 100644
+--- a/howdy/src/cli/config.py
++++ ./howdy/src/cli/config.py
+@@ -3,6 +3,7 @@
+ # Import required modules
+ import os
+ import subprocess
++import paths
+
+ from i18n import _
+
+@@ -19,4 +20,4 @@
+ 	editor = "/etc/alternatives/editor"
+
+ # Open the editor as a subprocess and fork it
+-subprocess.call([editor, "/etc/howdy/config.ini"])
++subprocess.call([editor, paths.config_dir + "config.ini"])
+diff --git a/howdy/src/cli/disable.py b/howdy/src/cli/disable.py
+index be78c97f..1f655412 100644
+--- a/howdy/src/cli/disable.py
++++ ./howdy/src/cli/disable.py
+@@ -6,11 +6,12 @@
+ import builtins
+ import fileinput
+ import configparser
++import paths
+
+ from i18n import _
+
+ # Get the absolute filepath
+-config_path = os.path.dirname("/etc/howdy") + "/config.ini"
++config_path = os.path.dirname(paths.config_dir) + "/config.ini"
+
+ # Read config from disk
+ config = configparser.ConfigParser()
+diff --git a/howdy/src/cli/list.py b/howdy/src/cli/list.py
+index 3532e9f8..7539837d 100644
+--- a/howdy/src/cli/list.py
++++ ./howdy/src/cli/list.py
+@@ -6,21 +6,20 @@
+ import json
+ import time
+ import builtins
++import paths
+
+ from i18n import _
+
+-# Get the absolute path and the username
+-path = "/etc/howdy"
+ user = builtins.howdy_user
+
+ # Check if the models file has been created yet
+-if not os.path.exists(path + "/models"):
++if not os.path.exists(paths.user_models_dir):
+ 	print(_("Face models have not been initialized yet, please run:"))
+ 	print("\n\tsudo howdy -U " + user + " add\n")
+ 	sys.exit(1)
+
+ # Path to the models file
+-enc_file = path + "/models/" + user + ".dat"
++enc_file = paths.user_models_dir + user + ".dat"
+
+ # Try to load the models file and abort if the user does not have it yet
+ try:
+diff --git a/howdy/src/cli/remove.py b/howdy/src/cli/remove.py
+index 6321e0b5..37894422 100644
+--- a/howdy/src/cli/remove.py
++++ ./howdy/src/cli/remove.py
+@@ -5,11 +5,10 @@
+ import os
+ import json
+ import builtins
++import paths
+
+ from i18n import _
+
+-# Get the absolute path and the username
+-path = "/etc/howdy"
+ user = builtins.howdy_user
+
+ # Check if enough arguments have been passed
+@@ -22,13 +21,13 @@
+ 	sys.exit(1)
+
+ # Check if the models file has been created yet
+-if not os.path.exists(path + "/models"):
++if not os.path.exists(paths.user_models_dir):
+ 	print(_("Face models have not been initialized yet, please run:"))
+ 	print("\n\thowdy add\n")
+ 	sys.exit(1)
+
+ # Path to the models file
+-enc_file = path + "/models/" + user + ".dat"
++enc_file = paths.user_models_dir + user + ".dat"
+
+ # Try to load the models file and abort if the user does not have it yet
+ try:
+@@ -72,7 +71,7 @@
+
+ # Remove the entire file if this encoding is the only one
+ if len(encodings) == 1:
+-	os.remove(path + "/models/" + user + ".dat")
++	os.remove(paths.user_models_dir + user + ".dat")
+ 	print(_("Removed last model, howdy disabled for user"))
+ else:
+ 	# A place holder to contain the encodings that will remain
+diff --git a/howdy/src/cli/set.py b/howdy/src/cli/set.py
+index 14d15c20..efbbee5b 100644
+--- a/howdy/src/cli/set.py
++++ ./howdy/src/cli/set.py
+@@ -5,11 +5,12 @@
+ import os
+ import builtins
+ import fileinput
++import paths
+
+ from i18n import _
+
+ # Get the absolute filepath
+-config_path = os.path.dirname("/etc/howdy") + "/config.ini"
++config_path = os.path.dirname(paths.config_dir) + "/config.ini"
+
+ # Check if enough arguments have been passed
+ if len(builtins.howdy_args.arguments) < 2:
+diff --git a/howdy/src/cli/snap.py b/howdy/src/cli/snap.py
+index cbcae501..2c625d3b 100644
+--- a/howdy/src/cli/snap.py
++++ ./howdy/src/cli/snap.py
+@@ -5,15 +5,14 @@
+ import configparser
+ import datetime
+ import snapshot
++import paths
+ from recorders.video_capture import VideoCapture
+
+ from i18n import _
+
+-path = "/etc/howdy"
+-
+ # Read the config
+ config = configparser.ConfigParser()
+-config.read(path + "/config.ini")
++config.read(paths.config_dir + "config.ini")
+
+ # Start video capture
+ video_capture = VideoCapture(config)
+diff --git a/howdy/src/cli/test.py b/howdy/src/cli/test.py
+index 3a6e4d19..563be19b 100644
+--- a/howdy/src/cli/test.py
++++ ./howdy/src/cli/test.py
+@@ -10,6 +10,7 @@
+ import dlib
+ import cv2
+ import numpy as np
++import paths
+
+ from i18n import _
+ from recorders.video_capture import VideoCapture
+@@ -19,7 +20,7 @@
+
+ # Read config from disk
+ config = configparser.ConfigParser()
+-config.read(path + "/config.ini")
++config.read(paths.config_dir + "config.ini")
+
+ if config.get("video", "recording_plugin", fallback="opencv") != "opencv":
+ 	print(_("Howdy has been configured to use a recorder which doesn't support the test command yet, aborting"))
+@@ -59,20 +60,20 @@ def print_text(line_number, text):
+
+ if use_cnn:
+ 	face_detector = dlib.cnn_face_detection_model_v1(
+-		path + "/dlib-data/mmod_human_face_detector.dat"
++		paths.dlib_data_dir + "mmod_human_face_detector.dat"
+ 	)
+ else:
+ 	face_detector = dlib.get_frontal_face_detector()
+
+-pose_predictor = dlib.shape_predictor(path + "/dlib-data/shape_predictor_5_face_landmarks.dat")
+-face_encoder = dlib.face_recognition_model_v1(path + "/dlib-data/dlib_face_recognition_resnet_model_v1.dat")
++pose_predictor = dlib.shape_predictor(paths.dlib_data_dir + "shape_predictor_5_face_landmarks.dat")
++face_encoder = dlib.face_recognition_model_v1(paths.dlib_data_dir + "dlib_face_recognition_resnet_model_v1.dat")
+
+ encodings = []
+ models = None
+
+ try:
+ 	user = builtins.howdy_user
+-	models = json.load(open(path + "/models/" + user + ".dat"))
++	models = json.load(open(paths.user_models_dir + user + ".dat"))
+
+ 	for model in models:
+ 		encodings += model["data"]
+diff --git a/howdy/src/compare.py b/howdy/src/compare.py
+index 99f5285b..f81fe386 100644
+--- a/howdy/src/compare.py
++++ ./howdy/src/compare.py
+@@ -23,6 +23,7 @@
+ import snapshot
+ import numpy as np
+ import _thread as thread
++import paths
+
+ # Allow imports from the local howdy folder
+ sys.path.append('/lib/security/howdy')
+@@ -48,22 +49,22 @@ def init_detector(lock):
+ 	global face_detector, pose_predictor, face_encoder
+
+ 	# Test if at lest 1 of the data files is there and abort if it's not
+-	if not os.path.isfile(PATH + "/dlib-data/shape_predictor_5_face_landmarks.dat"):
++	if not os.path.isfile(paths.dlib_data_dir + "shape_predictor_5_face_landmarks.dat"):
+ 		print(_("Data files have not been downloaded, please run the following commands:"))
+-		print("\n\tcd " + PATH + "/dlib-data")
++		print("\n\tcd " + paths.dlib_data_dir)
+ 		print("\tsudo ./install.sh\n")
+ 		lock.release()
+ 		exit(1)
+
+ 	# Use the CNN detector if enabled
+ 	if use_cnn:
+-		face_detector = dlib.cnn_face_detection_model_v1(PATH + "/dlib-data/mmod_human_face_detector.dat")
++		face_detector = dlib.cnn_face_detection_model_v1(paths.dlib_data_dir + "mmod_human_face_detector.dat")
+ 	else:
+ 		face_detector = dlib.get_frontal_face_detector()
+
+ 	# Start the others regardless
+-	pose_predictor = dlib.shape_predictor(PATH + "/dlib-data/shape_predictor_5_face_landmarks.dat")
+-	face_encoder = dlib.face_recognition_model_v1(PATH + "/dlib-data/dlib_face_recognition_resnet_model_v1.dat")
++	pose_predictor = dlib.shape_predictor(paths.dlib_data_dir + "shape_predictor_5_face_landmarks.dat")
++	face_encoder = dlib.face_recognition_model_v1(paths.dlib_data_dir + "dlib_face_recognition_resnet_model_v1.dat")
+
+ 	# Note the time it took to initialize detectors
+ 	timings["ll"] = time.time() - timings["ll"]
+@@ -103,9 +104,6 @@ def send_to_ui(type, message):
+ if len(sys.argv) < 2:
+ 	exit(12)
+
+-# Get the absolute path to the config directory
+-PATH = "/etc/howdy"
+-
+ # The username of the user being authenticated
+ user = sys.argv[1]
+ # The model file contents
+@@ -129,7 +127,7 @@ def send_to_ui(type, message):
+
+ # Try to load the face model from the models folder
+ try:
+-	models = json.load(open(PATH + "/models/" + user + ".dat"))
++	models = json.load(open(paths.user_models_dir + user + ".dat"))
+
+ 	for model in models:
+ 		encodings += model["data"]
+@@ -142,7 +140,7 @@ def send_to_ui(type, message):
+
+ # Read config from disk
+ config = configparser.ConfigParser()
+-config.read(PATH + "/config.ini")
++config.read(paths.config_dir + "config.ini")
+
+ # Get all config values needed
+ use_cnn = config.getboolean("core", "use_cnn", fallback=False)
+diff --git a/howdy/src/paths.py b/howdy/src/paths.py
+new file mode 100644
+index 00000000..22825405
+--- /dev/null
++++ ./howdy/src/paths.py
+@@ -0,0 +1,12 @@
++
++# Define the absolute path to the config directory
++config_dir = "/etc/howdy/"
++
++# Define the absolute path to the DLib models data directory
++dlib_data_dir = config_dir + "/dlib-data/"
++
++# Define the absolute path to the Howdy user models directory
++user_models_dir = config_dir + "/models/"
++
++# Define path to any howdy logs
++log_path = "/var/log/howdy"
+diff --git a/howdy/src/snapshot.py b/howdy/src/snapshot.py
+index 324b5789..9f2f563c 100644
+--- a/howdy/src/snapshot.py
++++ ./howdy/src/snapshot.py
+@@ -49,19 +49,16 @@ def generate(frames, text_lines):
+
+ 		line_number += 1
+
+-	# Define path to any howdy logs
+-	log_path = "/var/log/howdy"
+-
+ 	# Made sure a snapshot folder exist
+-	if not os.path.exists(log_path):
+-		os.makedirs(log_path)
+-	if not os.path.exists(log_path + "/snapshots"):
+-		os.makedirs(log_path + "/snapshots")
++	if not os.path.exists(paths.log_path):
++		os.makedirs(paths.log_path)
++	if not os.path.exists(paths.log_path + "/snapshots"):
++		os.makedirs(paths.log_path + "/snapshots")
+
+ 	# Generate a filename based on the current time
+ 	filename = datetime.datetime.utcnow().strftime("%Y%m%dT%H%M%S.jpg")
+ 	# Write the image to that file
+-	cv2.imwrite(log_path + "/snapshots/" + filename, snap)
++	cv2.imwrite(paths.log_path + "/snapshots/" + filename, snap)
+
+ 	# Return the saved file location
+-	return log_path + "/snapshots/" + filename
++	return paths.log_path + "/snapshots/" + filename