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path: root/synapse/config/account_validity.py
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# Copyright 2020 The Matrix.org Foundation C.I.C.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import logging
from typing import Any

from synapse.config._base import Config, ConfigError
from synapse.types import JsonDict

logger = logging.getLogger(__name__)

LEGACY_TEMPLATE_DIR_WARNING = """
This server's configuration file is using the deprecated 'template_dir' setting in the
'account_validity' section. Support for this setting has been deprecated and will be
removed in a future version of Synapse. Server admins should instead use the new
'custom_templates_directory' setting documented here:
https://matrix-org.github.io/synapse/latest/templates.html
---------------------------------------------------------------------------------------"""


class AccountValidityConfig(Config):
    section = "account_validity"

    def read_config(self, config: JsonDict, **kwargs: Any) -> None:
        """Parses the old account validity config. The config format looks like this:

        account_validity:
            enabled: true
            period: 6w
            renew_at: 1w
            renew_email_subject: "Renew your %(app)s account"
            template_dir: "res/templates"
            account_renewed_html_path: "account_renewed.html"
            invalid_token_html_path: "invalid_token.html"

        We expect admins to use modules for this feature (which is why it doesn't appear
        in the sample config file), but we want to keep support for it around for a bit
        for backwards compatibility.
        """
        account_validity_config = config.get("account_validity") or {}
        self.account_validity_enabled = account_validity_config.get("enabled", False)
        self.account_validity_renew_by_email_enabled = (
            "renew_at" in account_validity_config
        )

        if self.account_validity_enabled:
            if "period" in account_validity_config:
                self.account_validity_period = self.parse_duration(
                    account_validity_config["period"]
                )
            else:
                raise ConfigError("'period' is required when using account validity")

            if "renew_at" in account_validity_config:
                self.account_validity_renew_at = self.parse_duration(
                    account_validity_config["renew_at"]
                )

            if "renew_email_subject" in account_validity_config:
                self.account_validity_renew_email_subject = account_validity_config[
                    "renew_email_subject"
                ]
            else:
                self.account_validity_renew_email_subject = "Renew your %(app)s account"

            self.account_validity_startup_job_max_delta = (
                self.account_validity_period * 10.0 / 100.0
            )

        # Load account validity templates.
        account_validity_template_dir = account_validity_config.get("template_dir")
        if account_validity_template_dir is not None:
            logger.warning(LEGACY_TEMPLATE_DIR_WARNING)

        account_renewed_template_filename = account_validity_config.get(
            "account_renewed_html_path", "account_renewed.html"
        )
        invalid_token_template_filename = account_validity_config.get(
            "invalid_token_html_path", "invalid_token.html"
        )

        # Read and store template content
        custom_template_directories = (
            self.root.server.custom_template_directory,
            account_validity_template_dir,
        )

        (
            self.account_validity_account_renewed_template,
            self.account_validity_account_previously_renewed_template,
            self.account_validity_invalid_token_template,
        ) = self.read_templates(
            [
                account_renewed_template_filename,
                "account_previously_renewed.html",
                invalid_token_template_filename,
            ],
            (td for td in custom_template_directories if td),
        )