├── .gitignore ├── .vscode └── settings.json ├── LICENSE ├── Pipfile ├── Pipfile.lock ├── README.md ├── _config.yml ├── flask_opencv_streamer ├── __init__.py ├── login_manager.py └── streamer.py ├── setup.py ├── templates ├── fail.html ├── form.html └── pass.html └── upload.sh /.gitignore: -------------------------------------------------------------------------------- 1 | # Byte-compiled / optimized / DLL files 2 | __pycache__/ 3 | *.py[cod] 4 | *$py.class 5 | 6 | # C extensions 7 | *.so 8 | 9 | # Distribution / packaging 10 | .Python 11 | build/ 12 | develop-eggs/ 13 | dist/ 14 | downloads/ 15 | eggs/ 16 | .eggs/ 17 | lib/ 18 | lib64/ 19 | parts/ 20 | sdist/ 21 | var/ 22 | wheels/ 23 | *.egg-info/ 24 | .installed.cfg 25 | *.egg 26 | MANIFEST 27 | 28 | # PyInstaller 29 | # Usually these files are written by a python script from a template 30 | # before PyInstaller builds the exe, so as to inject date/other infos into it. 31 | *.manifest 32 | *.spec 33 | 34 | # Installer logs 35 | pip-log.txt 36 | pip-delete-this-directory.txt 37 | 38 | # Unit test / coverage reports 39 | htmlcov/ 40 | .tox/ 41 | .coverage 42 | .coverage.* 43 | .cache 44 | nosetests.xml 45 | coverage.xml 46 | *.cover 47 | .hypothesis/ 48 | .pytest_cache/ 49 | 50 | # Translations 51 | *.mo 52 | *.pot 53 | 54 | # Django stuff: 55 | *.log 56 | local_settings.py 57 | db.sqlite3 58 | 59 | # Flask stuff: 60 | instance/ 61 | .webassets-cache 62 | 63 | # Scrapy stuff: 64 | .scrapy 65 | 66 | # Sphinx documentation 67 | docs/_build/ 68 | 69 | # PyBuilder 70 | target/ 71 | 72 | # Jupyter Notebook 73 | .ipynb_checkpoints 74 | 75 | # pyenv 76 | .python-version 77 | 78 | # celery beat schedule file 79 | celerybeat-schedule 80 | 81 | # SageMath parsed files 82 | *.sage.py 83 | 84 | # Environments 85 | .env 86 | .venv 87 | env/ 88 | venv/ 89 | ENV/ 90 | env.bak/ 91 | venv.bak/ 92 | 93 | # Spyder project settings 94 | .spyderproject 95 | .spyproject 96 | 97 | # Rope project settings 98 | .ropeproject 99 | 100 | # mkdocs documentation 101 | /site 102 | 103 | # mypy 104 | .mypy_cache/ 105 | **/.DS_Store 106 | .login 107 | logins 108 | .vscode/ -------------------------------------------------------------------------------- /.vscode/settings.json: -------------------------------------------------------------------------------- 1 | { 2 | "python.linting.pylintEnabled": true, 3 | "python.pythonPath": "/Users/jose/.local/share/virtualenvs/Flask-OpenCV-Streamer--9iRQ23d/bin/python" 4 | } -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /Pipfile: -------------------------------------------------------------------------------- 1 | [[source]] 2 | url = "https://pypi.python.org/simple" 3 | verify_ssl = true 4 | name = "pypi" 5 | 6 | [packages] 7 | twine = "*" 8 | 9 | [dev-packages] 10 | 11 | [requires] 12 | python_version = "3.6" 13 | -------------------------------------------------------------------------------- /Pipfile.lock: -------------------------------------------------------------------------------- 1 | { 2 | "_meta": { 3 | "hash": { 4 | "sha256": "178b336d8960d38274982f0c0f3e8aa1840b3d36fe6839e7643ceb836db53a54" 5 | }, 6 | "pipfile-spec": 6, 7 | "requires": { 8 | "python_version": "3.6" 9 | }, 10 | "sources": [ 11 | { 12 | "name": "pypi", 13 | "url": "https://pypi.python.org/simple", 14 | "verify_ssl": true 15 | } 16 | ] 17 | }, 18 | "default": { 19 | "bleach": { 20 | "hashes": [ 21 | 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134 | "hashes": [ 135 | "sha256:a0af1213f3c2226497a97e2b3aa01a7e4bee4f403f95be16fc9acd2947514a78", 136 | "sha256:b36a1c245f2d304965eb4e0a82848379241dc04b865afcc4aab16748587e1923" 137 | ], 138 | "version": "==0.5.1" 139 | } 140 | }, 141 | "develop": {} 142 | } 143 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # Flask-OpenCV-Streamer 2 | A Python package for easily streaming OpenCV footage, even with authentication 3 | 4 | ## Installation 5 | 6 | Install via PyPi using Pip / PipEnv: 7 | 8 | `pip install flask_opencv_streamer` 9 | 10 | ## Usage 11 | 12 | Usage is quite straight forward. After importing, you can create as many streamer objects as you wish. 13 | 14 | 15 | ## Example Code: 16 | 17 | ### Without authentication (no login required to view page) 18 | 19 | 20 | ```python 21 | from flask_opencv_streamer.streamer import Streamer 22 | import cv2 23 | 24 | port = 3030 25 | require_login = False 26 | streamer = Streamer(port, require_login) 27 | 28 | # Open video device 0 29 | video_capture = cv2.VideoCapture(0) 30 | 31 | while True: 32 | _, frame = video_capture.read() 33 | 34 | streamer.update_frame(frame) 35 | 36 | if not streamer.is_streaming: 37 | streamer.start_streaming() 38 | 39 | cv2.waitKey(30) 40 | ``` 41 | 42 | ### With authentication (A password will be generated for you, expiring every 24 hrs) 43 | 44 | ```python 45 | from flask_opencv_streamer.streamer import Streamer 46 | import cv2 47 | 48 | port = 3030 49 | require_login = True 50 | login_file = "logins.txt" 51 | login_key = "loginkey.txt 52 | streamer = Streamer(port, require_login, login_file=login_file, login_key=login_key) 53 | 54 | # Open video device 0 55 | video_capture = cv2.VideoCapture(0) 56 | 57 | while True: 58 | _, frame = video_capture.read() 59 | 60 | streamer.update_frame(frame) 61 | 62 | if not streamer.is_streaming: 63 | streamer.start_streaming() 64 | 65 | cv2.waitKey(30) 66 | ``` 67 | 68 | **If there is no logins file or key found at the path given, it will create one for you**. Logins will be stored in a `.txt` file `logins.txt` but will be **encrypted**. Therefore, unless someone has the key (in this example, `loginkey.txt`) the `logins.txt` file will be able to show logins or passwords. It is very unsafe to keep the login key somewhere publicly accessible; it's suggested you hide it well and do not upload it anywhere. 69 | 70 | ### Adding or removing your own logins 71 | 72 | In your **root project directory**, you can include a `templates` folder which can be used for password change templates. Your file names must be: 73 | 74 | - `form.html`: Contains the HTML form for the password change. 75 | - `pass.html`: Contains the HTML for a pass event 76 | - `fail.html`: Contains the HTML for a fail event 77 | 78 | Samples are included here in this repository 79 | -------------------------------------------------------------------------------- /_config.yml: -------------------------------------------------------------------------------- 1 | theme: jekyll-theme-slate -------------------------------------------------------------------------------- /flask_opencv_streamer/__init__.py: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/oitsjustjose/Flask-OpenCV-Streamer/c22b24f2c89797b4a431fc0ddc486d56a7976a23/flask_opencv_streamer/__init__.py -------------------------------------------------------------------------------- /flask_opencv_streamer/login_manager.py: -------------------------------------------------------------------------------- 1 | """Handles logins from a file, and encryption of said file""" 2 | import os 3 | 4 | from cryptography.fernet import Fernet 5 | 6 | 7 | class LoginManager: 8 | """A class to handle auth storage, using encryption""" 9 | 10 | def __init__(self, path_to_login_file, keyname): 11 | self.path = path_to_login_file 12 | self.keyname = keyname 13 | self.key = self.load_key() 14 | self.fernet = Fernet(self.key) 15 | self.logins = self.load_logins() 16 | 17 | def __getstate__(self): 18 | """An override for loading this object's state from pickle""" 19 | ret = {"path": self.path, "keyname": self.keyname} 20 | return ret 21 | 22 | def __setstate__(self, dict_in): 23 | """An override for pickling this object's state""" 24 | self.path = dict_in["path"] 25 | self.keyname = dict_in["keyname"] 26 | self.key = self.load_key() 27 | self.fernet = Fernet(self.key) 28 | self.logins = self.load_logins() 29 | 30 | def load_logins(self): 31 | """Loads logins from a file, returning them as a dict""" 32 | logins = {} 33 | if os.path.exists(self.path): 34 | with open(self.path, "r") as file: 35 | lines = file.readlines() 36 | for line in lines: 37 | decrypted_line = self.fernet.decrypt(bytes(line.encode())) 38 | decrypted_line = decrypted_line.decode() 39 | username, password = ( 40 | decrypted_line.replace(" ", "") 41 | .replace("\n", "") 42 | .replace("\t", "") 43 | .split(",") 44 | ) 45 | logins[username] = password 46 | return logins 47 | 48 | def write_logins(self): 49 | """Writes the logins to an encryptedfile""" 50 | if os.path.exists(self.path): 51 | os.remove(self.path) 52 | with open(self.path, "w") as file: 53 | for username in self.logins: 54 | file.write(self.encrypt_line(username) + "\n") 55 | 56 | def add_login(self, username, password): 57 | """Adds a new username and password, writing changes afterward""" 58 | if username in list(self.logins.keys()): 59 | print("Login pair not added; login {} already exists".format(username)) 60 | else: 61 | self.logins[username] = password 62 | self.write_logins() 63 | 64 | def remove_login(self, username): 65 | """Removes a username and password, writing changes afterward""" 66 | if not username in list(self.logins.keys()): 67 | print("Login not found - no deletion was made") 68 | else: 69 | del self.logins[username] 70 | self.write_logins() 71 | 72 | def encrypt_line(self, username): 73 | """Encrypts a username/password line for the txt file and converts to str""" 74 | ret = "{}, {}".format(username, self.logins[username]).encode() 75 | ret = bytes(ret) 76 | ret = self.fernet.encrypt(ret) 77 | return str(ret.decode("utf-8")) 78 | 79 | def load_key(self): 80 | """Loads the key from a hidden location""" 81 | token = "" 82 | if os.path.exists(self.keyname): 83 | with open(self.keyname, "r") as file: 84 | lines = file.readlines() 85 | for line in lines: 86 | token = line.replace("\n", "") 87 | break 88 | else: 89 | token = Fernet.generate_key() 90 | with open(self.keyname, "w+") as file: 91 | file.write(token.decode("utf-8")) 92 | if isinstance(token, bytes): 93 | return bytes(token) 94 | return bytes(token.encode()) 95 | -------------------------------------------------------------------------------- /flask_opencv_streamer/streamer.py: -------------------------------------------------------------------------------- 1 | """Stores a Streamer class""" 2 | import time 3 | from datetime import datetime 4 | from functools import wraps 5 | from threading import Thread 6 | 7 | import cv2 8 | from cryptography.fernet import Fernet 9 | from flask import Flask, Response, render_template, request 10 | 11 | from .login_manager import LoginManager 12 | 13 | 14 | class Streamer: 15 | """A clean wrapper class for a Flask OpenCV Video Streamer""" 16 | 17 | def __init__( 18 | self, 19 | port, 20 | requires_auth, 21 | stream_res=(1280, 720), 22 | frame_rate=30, 23 | login_file="logins", 24 | login_key=".login", 25 | ): 26 | self.flask_name = "{}_{}".format(__name__, port) 27 | self.login_file = login_file 28 | self.login_key = login_key 29 | self.flask = Flask(self.flask_name) 30 | self.frame_to_stream = None 31 | self.guest_password = None 32 | self.password_create_time = None 33 | self.thread = None 34 | self.is_streaming = False 35 | self.port = port 36 | self.req_auth = requires_auth 37 | self.stream_res = stream_res 38 | self.frame_rate = frame_rate 39 | if requires_auth: 40 | self.generate_guest_password() 41 | self.login_manager = LoginManager(login_file, login_key) 42 | 43 | def __getstate__(self): 44 | """An override for loading this object's state from pickle""" 45 | ret = { 46 | "flask_name": self.flask_name, 47 | "port": self.port, 48 | "req_auth": self.req_auth, 49 | "stream_res": self.stream_res, 50 | "login_file": self.login_file, 51 | "login_key": self.login_key, 52 | } 53 | return ret 54 | 55 | def __setstate__(self, dict_in): 56 | """An override for pickling this object's state""" 57 | self.flask_name = dict_in["flask_name"] 58 | self.flask = Flask(self.flask_name) 59 | self.frame_to_stream = None 60 | self.guest_password = None 61 | self.password_create_time = None 62 | self.thread = None 63 | self.is_streaming = False 64 | self.port = dict_in["port"] 65 | self.req_auth = dict_in["req_auth"] 66 | self.stream_res = dict_in["stream_res"] 67 | if self.req_auth: 68 | self.generate_guest_password() 69 | self.login_manager = LoginManager( 70 | dict_in["login_file"], dict_in["login_key"] 71 | ) 72 | 73 | def start_streaming(self): 74 | """Starts the video stream hosting process""" 75 | gen_function = self.gen 76 | 77 | @self.flask.route("/video_feed") 78 | @self.requires_auth 79 | def video_feed(): 80 | """Route which renders solely the video""" 81 | return Response( 82 | gen_function(), mimetype="multipart/x-mixed-replace; boundary=jpgboundary" 83 | ) 84 | 85 | @self.flask.route("/") 86 | @self.requires_auth 87 | def index(): 88 | """Route which renders the video within an HTML template""" 89 | return render_template("index.html") 90 | 91 | @self.flask.route("/guest") 92 | @self.requires_auth 93 | def guest(): 94 | """Route which shows a logged in user the current guest password and how long it'll work""" 95 | if self.req_auth: 96 | return "
The current guest password is:
{}
Password will expire {}
".format( 97 | self.guest_password, 98 | str(datetime.fromtimestamp(self.password_create_time + 86400)), 99 | ) 100 | else: 101 | return "Auth not required, this page is not needed" 102 | 103 | @self.flask.route("/change password") 104 | def change_password(): 105 | """Route which allows an authenticated user to chagne their password""" 106 | if self.req_auth: 107 | return render_template("form.html") 108 | else: 109 | return "Auth not required, this page is not needed" 110 | 111 | @self.flask.route("/change password result", methods=["POST", "GET"]) 112 | def result(): 113 | """Route which responds to a change_password input""" 114 | if request.method == "POST": 115 | result = request.form 116 | 117 | # Confirmation password didn't match 118 | if result["pw"] != result["pw_conf"]: 119 | return render_template( 120 | "fail.html", reason="New passwords did not match" 121 | ) 122 | # No username exists 123 | if result["username"] not in list(self.login_manager.logins.keys()): 124 | return render_template("fail.html", reason="Username doesn't exist") 125 | # Old password wrong 126 | if result["old_pw"] != self.login_manager.logins[result["username"]]: 127 | return render_template( 128 | "fail.html", reason="Old password was incorrect" 129 | ) 130 | 131 | self.login_manager.remove_login(result["username"]) 132 | self.login_manager.add_login(result["username"], result["pw"]) 133 | return render_template("pass.html") 134 | 135 | self.thread = Thread( 136 | daemon=True, 137 | target=self.flask.run, 138 | kwargs={ 139 | "host": "0.0.0.0", 140 | "port": self.port, 141 | "debug": False, 142 | "threaded": True, 143 | }, 144 | ) 145 | self.thread.start() 146 | self.is_streaming = True 147 | 148 | def update_frame(self, frame): 149 | """Updates the frame for streaming""" 150 | self.frame_to_stream = self.get_frame(frame) 151 | 152 | def get_frame(self, frame): 153 | """Encodes the OpenCV image to a 1280x720 image""" 154 | _, jpeg = cv2.imencode( 155 | ".jpg", 156 | cv2.resize(frame, self.stream_res), 157 | params=(cv2.IMWRITE_JPEG_QUALITY, 70), 158 | ) 159 | return jpeg.tobytes() 160 | 161 | def gen(self): 162 | """A generator for the image.""" 163 | header = "--jpgboundary\r\nContent-Type: image/jpeg\r\n" 164 | prefix = "" 165 | while True: 166 | # frame = self.frame_to_stream 167 | msg = ( 168 | prefix 169 | + header 170 | + "Content-Length: {}\r\n\r\n".format(len(self.frame_to_stream)) 171 | ) 172 | 173 | yield (msg.encode("utf-8") + self.frame_to_stream) 174 | prefix = "\r\n" 175 | time.sleep(1 / self.frame_rate) 176 | 177 | def check_auth(self, username, password): 178 | """Dummy thing to check password""" 179 | # Generate a password if there is no password OR the one given is older than 24hrs 180 | if ( 181 | self.guest_password is None 182 | or (time.time() - self.password_create_time) > 86400 183 | ) and self.req_auth: 184 | self.generate_guest_password() 185 | # Refresh the login manager's logins from the disk, in case a new login has been generated 186 | self.login_manager.logins = self.login_manager.load_logins() 187 | # Check the login manager for a match first 188 | if username in list(self.login_manager.logins.keys()): 189 | return password == self.login_manager.logins[username] 190 | 191 | # Otherwise check if it's the guest acct 192 | return username == "guest" and password == self.guest_password 193 | 194 | def authenticate(self): 195 | """Sends a 401 response that enables basic auth""" 196 | return Response( 197 | "Authentication Failed. Please reload to log in with proper credentials", 198 | 401, 199 | {"WWW-Authenticate": 'Basic realm="Login Required"'}, 200 | ) 201 | 202 | def requires_auth(self, func): 203 | """A custom decorator for Flask streams""" 204 | 205 | @wraps(func) 206 | def decorated(*args, **kwargs): 207 | if self.req_auth: 208 | auth = request.authorization 209 | if not auth or not self.check_auth(auth.username, auth.password): 210 | return self.authenticate() 211 | return func(*args, **kwargs) 212 | else: 213 | return func(*args, **kwargs) 214 | 215 | return decorated 216 | 217 | def generate_guest_password(self): 218 | """Generates and prints a random password on creation""" 219 | print("Generating Flask password") 220 | self.guest_password = str(Fernet.generate_key().decode()) 221 | self.password_create_time = time.time() 222 | print( 223 | "Password for stream on Port: {} is\n {}".format( 224 | self.port, self.guest_password 225 | ) 226 | ) 227 | -------------------------------------------------------------------------------- /setup.py: -------------------------------------------------------------------------------- 1 | """Main setup for submitting to PyPi""" 2 | import setuptools 3 | 4 | 5 | def main(): 6 | """Main setup for submitting to PyPi""" 7 | with open("README.md", "r") as fh: 8 | long_description = fh.read() 9 | 10 | setuptools.setup( 11 | name="flask_opencv_streamer", 12 | version="1.4", 13 | url="https://github.com/oitsjustjose/Flask-OpenCV-Streamer", 14 | author="Jose Stovall", 15 | author_email="stovallj1995@gmail.com", 16 | description="A Python package for easily streaming OpenCV footage, even with authentication", 17 | long_description=long_description, 18 | long_description_content_type="text/markdown", 19 | license="GNU General Public License 3", 20 | packages=setuptools.find_packages(), 21 | install_requires=["cryptography", "flask", "opencv-python"], 22 | ) 23 | 24 | 25 | if __name__ == "__main__": 26 | main() 27 | -------------------------------------------------------------------------------- /templates/fail.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 8 | 9 | 13 | 14 | 15 | -------------------------------------------------------------------------------- /templates/form.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 |
6 |
7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 |
Username:
Old Password
New Password
(Confirm)
29 |
30 |
31 | 32 | 33 | -------------------------------------------------------------------------------- /templates/pass.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 9 | 10 |

11 | {{reason}} 12 |

13 | 14 | 15 | -------------------------------------------------------------------------------- /upload.sh: -------------------------------------------------------------------------------- 1 | #/bin/bash 2 | 3 | pipenv run python setup.py sdist bdist_wheel 4 | python3 -m twine upload --repository-url https://upload.pypi.org/legacy/ dist/* --------------------------------------------------------------------------------