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import os
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from flask import Flask, redirect
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from injector import Injector
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from flask_injector import FlaskInjector
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from src.config import configuration
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from src.config.connection_provider import ConnectionProvider
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from src.controllers.certificates_controller import CertController
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from src.services.cryptography import CryptographyService, CryptographyException
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app = Flask(__name__)
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@app.route('/')
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def index():
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    return redirect("/static/index.html")
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@app.route('/api/certificates', methods=["POST"])
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def create_certificate(certificate_controller: CertController):
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    return certificate_controller.create_certificate()
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@app.route('/api/certificates', methods=["GET"])
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def get_cert_list(certificate_controller: CertController):
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    return certificate_controller.get_certificate_list()
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@app.route('/api/certificates/<id>', methods=["GET"])
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def get_cert(id, certificate_controller: CertController):
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    return certificate_controller.get_certificate_by_id(id)
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@app.route('/api/certificates/<id>', methods=["PATCH"])
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def set_certificate_status(id, certificate_controller: CertController):
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    return certificate_controller.set_certificate_status(id)
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@app.route('/api/certificates/<id>/details', methods=["GET"])
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def get_cert_details(id, certificate_controller: CertController):
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    return certificate_controller.get_certificate_details_by_id(id)
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@app.route('/api/certificates/<id>/root', methods=["GET"])
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def get_cert_root(id, certificate_controller: CertController):
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    return certificate_controller.get_certificate_root_by_id(id)
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@app.route('/api/certificates/<id>/chain', methods=["GET"])
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def get_cert_chain(id, certificate_controller: CertController):
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    return certificate_controller.get_certificate_trust_chain_by_id(id)
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@app.route('/api/certificates/<id>/private_key', methods=["GET"])
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def get_private_key_of_a_certificate(id, certificate_controller: CertController):
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    return certificate_controller.get_private_key_of_a_certificate(id)
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@app.route('/api/certificates/<id>/public_key', methods=["GET"])
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def get_public_key_of_a_certificate(id, certificate_controller: CertController):
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    return certificate_controller.get_public_key_of_a_certificate(id)
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def initialize_app(application) -> bool:
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    """
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    Initializes the application
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        -   configure dependency injection
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        -   check whether OpenSSL is on the system
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    :param application Flask Application to be initialized.
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    :return: boolean flag indicating whether initialization was successful or not
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    """
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    modules = [configuration.configure_env_variable, ConnectionProvider]
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    injector = Injector(modules)
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    FlaskInjector(app=application, modules=modules)
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    # There's a little dependency on the CryptoService, which is not a pretty thing from
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    # architectural point of view. However it is only a minimal piece of code and
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    # it makes sense to do it in this way instead of trying to run openssl via subprocess here
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    cryptography_service = injector.get(CryptographyService)
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    try:
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        # if version string is returned, OpenSSL is present on the system
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        print(f"Using {cryptography_service.get_openssl_version()}")
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        # TODO log the version instead of prining it out
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        return True
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    except CryptographyException:
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        # If getting the version string throws an exception the OpenSSL is not available
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        print("OpenSSL was not located on the system. Application will now exit.")
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        # TODO add logging here
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        return False
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# app initialization must follow endpoint declaration (after all Flask decoration)
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with app.app_context():
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    if not initialize_app(app):
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        # TODO log this
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        print("Failed to initialize app, aborting...")
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        exit(-1)
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if __name__ == '__main__':
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    app_host = "0.0.0.0"
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    app_port = 5000
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    # TODO better load this from config.py
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    if "FLASK_HOST" in os.environ:
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        app_host = os.environ["FLASK_HOST"]
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    if "FLASK_PORT" in os.environ:
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        app_host = os.environ["FLASK_PORT"]
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    app.run(host=app_host, port=app_port)
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