diff options
| -rw-r--r-- | changelog.d/8182.misc | 1 | ||||
| -rw-r--r-- | synapse/handlers/auth.py | 88 | ||||
| -rw-r--r-- | synapse/rest/client/v1/login.py | 60 |
3 files changed, 94 insertions, 55 deletions
diff --git a/changelog.d/8182.misc b/changelog.d/8182.misc new file mode 100644 index 0000000000..4fcdf1c452 --- /dev/null +++ b/changelog.d/8182.misc @@ -0,0 +1 @@ +Refactor some of `LoginRestServlet`'s helper methods, and move them to `AuthHandler` for easier reuse. \ No newline at end of file diff --git a/synapse/handlers/auth.py b/synapse/handlers/auth.py index 654f58ddae..f0b0a4d76a 100644 --- a/synapse/handlers/auth.py +++ b/synapse/handlers/auth.py @@ -42,8 +42,9 @@ from synapse.http.site import SynapseRequest from synapse.logging.context import defer_to_thread from synapse.metrics.background_process_metrics import run_as_background_process from synapse.module_api import ModuleApi -from synapse.types import Requester, UserID +from synapse.types import JsonDict, Requester, UserID from synapse.util import stringutils as stringutils +from synapse.util.msisdn import phone_number_to_msisdn from synapse.util.threepids import canonicalise_email from ._base import BaseHandler @@ -51,6 +52,91 @@ from ._base import BaseHandler logger = logging.getLogger(__name__) +def convert_client_dict_legacy_fields_to_identifier( + submission: JsonDict, +) -> Dict[str, str]: + """ + Convert a legacy-formatted login submission to an identifier dict. + + Legacy login submissions (used in both login and user-interactive authentication) + provide user-identifying information at the top-level instead. + + These are now deprecated and replaced with identifiers: + https://matrix.org/docs/spec/client_server/r0.6.1#identifier-types + + Args: + submission: The client dict to convert + + Returns: + The matching identifier dict + + Raises: + SynapseError: If the format of the client dict is invalid + """ + identifier = submission.get("identifier", {}) + + # Generate an m.id.user identifier if "user" parameter is present + user = submission.get("user") + if user: + identifier = {"type": "m.id.user", "user": user} + + # Generate an m.id.thirdparty identifier if "medium" and "address" parameters are present + medium = submission.get("medium") + address = submission.get("address") + if medium and address: + identifier = { + "type": "m.id.thirdparty", + "medium": medium, + "address": address, + } + + # We've converted valid, legacy login submissions to an identifier. If the + # submission still doesn't have an identifier, it's invalid + if not identifier: + raise SynapseError(400, "Invalid login submission", Codes.INVALID_PARAM) + + # Ensure the identifier has a type + if "type" not in identifier: + raise SynapseError( + 400, "'identifier' dict has no key 'type'", errcode=Codes.MISSING_PARAM, + ) + + return identifier + + +def login_id_phone_to_thirdparty(identifier: JsonDict) -> Dict[str, str]: + """ + Convert a phone login identifier type to a generic threepid identifier. + + Args: + identifier: Login identifier dict of type 'm.id.phone' + + Returns: + An equivalent m.id.thirdparty identifier dict + """ + if "country" not in identifier or ( + # The specification requires a "phone" field, while Synapse used to require a "number" + # field. Accept both for backwards compatibility. + "phone" not in identifier + and "number" not in identifier + ): + raise SynapseError( + 400, "Invalid phone-type identifier", errcode=Codes.INVALID_PARAM + ) + + # Accept both "phone" and "number" as valid keys in m.id.phone + phone_number = identifier.get("phone", identifier["number"]) + + # Convert user-provided phone number to a consistent representation + msisdn = phone_number_to_msisdn(identifier["country"], phone_number) + + return { + "type": "m.id.thirdparty", + "medium": "msisdn", + "address": msisdn, + } + + class AuthHandler(BaseHandler): SESSION_EXPIRE_MS = 48 * 60 * 60 * 1000 diff --git a/synapse/rest/client/v1/login.py b/synapse/rest/client/v1/login.py index 379f668d6f..a14618ac84 100644 --- a/synapse/rest/client/v1/login.py +++ b/synapse/rest/client/v1/login.py @@ -18,6 +18,10 @@ from typing import Awaitable, Callable, Dict, Optional from synapse.api.errors import Codes, LoginError, SynapseError from synapse.api.ratelimiting import Ratelimiter +from synapse.handlers.auth import ( + convert_client_dict_legacy_fields_to_identifier, + login_id_phone_to_thirdparty, +) from synapse.http.server import finish_request from synapse.http.servlet import ( RestServlet, @@ -28,56 +32,11 @@ from synapse.http.site import SynapseRequest from synapse.rest.client.v2_alpha._base import client_patterns from synapse.rest.well_known import WellKnownBuilder from synapse.types import JsonDict, UserID -from synapse.util.msisdn import phone_number_to_msisdn from synapse.util.threepids import canonicalise_email logger = logging.getLogger(__name__) -def login_submission_legacy_convert(submission): - """ - If the input login submission is an old style object - (ie. with top-level user / medium / address) convert it - to a typed object. - """ - if "user" in submission: - submission["identifier"] = {"type": "m.id.user", "user": submission["user"]} - del submission["user"] - - if "medium" in submission and "address" in submission: - submission["identifier"] = { - "type": "m.id.thirdparty", - "medium": submission["medium"], - "address": submission["address"], - } - del submission["medium"] - del submission["address"] - - -def login_id_thirdparty_from_phone(identifier): - """ - Convert a phone login identifier type to a generic threepid identifier - Args: - identifier(dict): Login identifier dict of type 'm.id.phone' - - Returns: Login identifier dict of type 'm.id.threepid' - """ - if "country" not in identifier or ( - # The specification requires a "phone" field, while Synapse used to require a "number" - # field. Accept both for backwards compatibility. - "phone" not in identifier - and "number" not in identifier - ): - raise SynapseError(400, "Invalid phone-type identifier") - - # Accept both "phone" and "number" as valid keys in m.id.phone - phone_number = identifier.get("phone", identifier["number"]) - - msisdn = phone_number_to_msisdn(identifier["country"], phone_number) - - return {"type": "m.id.thirdparty", "medium": "msisdn", "address": msisdn} - - class LoginRestServlet(RestServlet): PATTERNS = client_patterns("/login$", v1=True) CAS_TYPE = "m.login.cas" @@ -194,18 +153,11 @@ class LoginRestServlet(RestServlet): login_submission.get("address"), login_submission.get("user"), ) - login_submission_legacy_convert(login_submission) - - if "identifier" not in login_submission: - raise SynapseError(400, "Missing param: identifier") - - identifier = login_submission["identifier"] - if "type" not in identifier: - raise SynapseError(400, "Login identifier has no type") + identifier = convert_client_dict_legacy_fields_to_identifier(login_submission) # convert phone type identifiers to generic threepids if identifier["type"] == "m.id.phone": - identifier = login_id_thirdparty_from_phone(identifier) + identifier = login_id_phone_to_thirdparty(identifier) # convert threepid identifiers to user IDs if identifier["type"] == "m.id.thirdparty": |