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-rw-r--r--synapse/storage/registration.py265
1 files changed, 194 insertions, 71 deletions
diff --git a/synapse/storage/registration.py b/synapse/storage/registration.py
index 5138792a5f..6c5b29288a 100644
--- a/synapse/storage/registration.py
+++ b/synapse/storage/registration.py
@@ -22,9 +22,10 @@ from six import iterkeys
 from six.moves import range
 
 from twisted.internet import defer
+from twisted.internet.defer import Deferred
 
 from synapse.api.constants import UserTypes
-from synapse.api.errors import Codes, StoreError, ThreepidValidationError
+from synapse.api.errors import Codes, StoreError, SynapseError, ThreepidValidationError
 from synapse.metrics.background_process_metrics import run_as_background_process
 from synapse.storage import background_updates
 from synapse.storage._base import SQLBaseStore
@@ -323,6 +324,19 @@ class RegistrationWorkerStore(SQLBaseStore):
         return None
 
     @cachedInlineCallbacks()
+    def is_real_user(self, user_id):
+        """Determines if the user is a real user, ie does not have a 'user_type'.
+
+        Args:
+            user_id (str): user id to test
+
+        Returns:
+            Deferred[bool]: True if user 'user_type' is null or empty string
+        """
+        res = yield self.runInteraction("is_real_user", self.is_real_user_txn, user_id)
+        return res
+
+    @cachedInlineCallbacks()
     def is_support_user(self, user_id):
         """Determines if the user is of type UserTypes.SUPPORT
 
@@ -337,6 +351,16 @@ class RegistrationWorkerStore(SQLBaseStore):
         )
         return res
 
+    def is_real_user_txn(self, txn, user_id):
+        res = self._simple_select_one_onecol_txn(
+            txn=txn,
+            table="users",
+            keyvalues={"name": user_id},
+            retcol="user_type",
+            allow_none=True,
+        )
+        return res is None
+
     def is_support_user_txn(self, txn, user_id):
         res = self._simple_select_one_onecol_txn(
             txn=txn,
@@ -361,6 +385,26 @@ class RegistrationWorkerStore(SQLBaseStore):
 
         return self.runInteraction("get_users_by_id_case_insensitive", f)
 
+    async def get_user_by_external_id(
+        self, auth_provider: str, external_id: str
+    ) -> str:
+        """Look up a user by their external auth id
+
+        Args:
+            auth_provider: identifier for the remote auth provider
+            external_id: id on that system
+
+        Returns:
+            str|None: the mxid of the user, or None if they are not known
+        """
+        return await self._simple_select_one_onecol(
+            table="user_external_ids",
+            keyvalues={"auth_provider": auth_provider, "external_id": external_id},
+            retcol="user_id",
+            allow_none=True,
+            desc="get_user_by_external_id",
+        )
+
     @defer.inlineCallbacks
     def count_all_users(self):
         """Counts all users registered on the homeserver."""
@@ -422,6 +466,20 @@ class RegistrationWorkerStore(SQLBaseStore):
         return ret
 
     @defer.inlineCallbacks
+    def count_real_users(self):
+        """Counts all users without a special user_type registered on the homeserver."""
+
+        def _count_users(txn):
+            txn.execute("SELECT COUNT(*) AS users FROM users where user_type is null")
+            rows = self.cursor_to_dict(txn)
+            if rows:
+                return rows[0]["users"]
+            return 0
+
+        ret = yield self.runInteraction("count_real_users", _count_users)
+        return ret
+
+    @defer.inlineCallbacks
     def find_next_generated_user_id_localpart(self):
         """
         Gets the localpart of the next generated user ID.
@@ -435,7 +493,9 @@ class RegistrationWorkerStore(SQLBaseStore):
         """
 
         def _find_next_generated_user_id(txn):
-            txn.execute("SELECT name FROM users")
+            # We bound between '@1' and '@a' to avoid pulling the entire table
+            # out.
+            txn.execute("SELECT name FROM users WHERE '@1' <= name AND name < '@a'")
 
             regex = re.compile(r"^@(\d+):")
 
@@ -458,7 +518,7 @@ class RegistrationWorkerStore(SQLBaseStore):
         )
 
     @defer.inlineCallbacks
-    def get_user_id_by_threepid(self, medium, address, require_verified=False):
+    def get_user_id_by_threepid(self, medium, address):
         """Returns user id from threepid
 
         Args:
@@ -549,6 +609,26 @@ class RegistrationWorkerStore(SQLBaseStore):
             desc="add_user_bound_threepid",
         )
 
+    def user_get_bound_threepids(self, user_id):
+        """Get the threepids that a user has bound to an identity server through the homeserver
+        The homeserver remembers where binds to an identity server occurred. Using this
+        method can retrieve those threepids.
+
+        Args:
+            user_id (str): The ID of the user to retrieve threepids for
+
+        Returns:
+            Deferred[list[dict]]: List of dictionaries containing the following:
+                medium (str): The medium of the threepid (e.g "email")
+                address (str): The address of the threepid (e.g "bob@example.com")
+        """
+        return self._simple_select_list(
+            table="user_threepid_id_server",
+            keyvalues={"user_id": user_id},
+            retcols=["medium", "address"],
+            desc="user_get_bound_threepids",
+        )
+
     def remove_user_bound_threepid(self, user_id, medium, address, id_server):
         """The server proxied an unbind request to the given identity server on
         behalf of the given user, so we remove the mapping of threepid to
@@ -618,24 +698,37 @@ class RegistrationWorkerStore(SQLBaseStore):
         self, medium, client_secret, address=None, sid=None, validated=True
     ):
         """Gets a session_id and last_send_attempt (if available) for a
-        client_secret/medium/(address|session_id) combo
+        combination of validation metadata
 
         Args:
             medium (str|None): The medium of the 3PID
             address (str|None): The address of the 3PID
             sid (str|None): The ID of the validation session
-            client_secret (str|None): A unique string provided by the client to
-                help identify this validation attempt
+            client_secret (str): A unique string provided by the client to help identify this
+                validation attempt
             validated (bool|None): Whether sessions should be filtered by
                 whether they have been validated already or not. None to
                 perform no filtering
 
         Returns:
-            deferred {str, int}|None: A dict containing the
-                latest session_id and send_attempt count for this 3PID.
-                Otherwise None if there hasn't been a previous attempt
+            Deferred[dict|None]: A dict containing the following:
+                * address - address of the 3pid
+                * medium - medium of the 3pid
+                * client_secret - a secret provided by the client for this validation session
+                * session_id - ID of the validation session
+                * send_attempt - a number serving to dedupe send attempts for this session
+                * validated_at - timestamp of when this session was validated if so
+
+                Otherwise None if a validation session is not found
         """
-        keyvalues = {"medium": medium, "client_secret": client_secret}
+        if not client_secret:
+            raise SynapseError(
+                400, "Missing parameter: client_secret", errcode=Codes.MISSING_PARAM
+            )
+
+        keyvalues = {"client_secret": client_secret}
+        if medium:
+            keyvalues["medium"] = medium
         if address:
             keyvalues["address"] = address
         if sid:
@@ -694,13 +787,14 @@ class RegistrationWorkerStore(SQLBaseStore):
         )
 
 
-class RegistrationStore(
+class RegistrationBackgroundUpdateStore(
     RegistrationWorkerStore, background_updates.BackgroundUpdateStore
 ):
     def __init__(self, db_conn, hs):
-        super(RegistrationStore, self).__init__(db_conn, hs)
+        super(RegistrationBackgroundUpdateStore, self).__init__(db_conn, hs)
 
         self.clock = hs.get_clock()
+        self.config = hs.config
 
         self.register_background_index_update(
             "access_tokens_device_index",
@@ -716,8 +810,6 @@ class RegistrationStore(
             columns=["creation_ts"],
         )
 
-        self._account_validity = hs.config.account_validity
-
         # we no longer use refresh tokens, but it's possible that some people
         # might have a background update queued to build this index. Just
         # clear the background update.
@@ -731,17 +823,6 @@ class RegistrationStore(
             "users_set_deactivated_flag", self._background_update_set_deactivated_flag
         )
 
-        # Create a background job for culling expired 3PID validity tokens
-        def start_cull():
-            # run as a background process to make sure that the database transactions
-            # have a logcontext to report to
-            return run_as_background_process(
-                "cull_expired_threepid_validation_tokens",
-                self.cull_expired_threepid_validation_tokens,
-            )
-
-        hs.get_clock().looping_call(start_cull, THIRTY_MINUTES_IN_MS)
-
     @defer.inlineCallbacks
     def _background_update_set_deactivated_flag(self, progress, batch_size):
         """Retrieves a list of all deactivated users and sets the 'deactivated' flag to 1
@@ -774,7 +855,7 @@ class RegistrationStore(
             rows = self.cursor_to_dict(txn)
 
             if not rows:
-                return True
+                return True, 0
 
             rows_processed_nb = 0
 
@@ -790,18 +871,66 @@ class RegistrationStore(
             )
 
             if batch_size > len(rows):
-                return True
+                return True, len(rows)
             else:
-                return False
+                return False, len(rows)
 
-        end = yield self.runInteraction(
+        end, nb_processed = yield self.runInteraction(
             "users_set_deactivated_flag", _background_update_set_deactivated_flag_txn
         )
 
         if end:
             yield self._end_background_update("users_set_deactivated_flag")
 
-        return batch_size
+        return nb_processed
+
+    @defer.inlineCallbacks
+    def _bg_user_threepids_grandfather(self, progress, batch_size):
+        """We now track which identity servers a user binds their 3PID to, so
+        we need to handle the case of existing bindings where we didn't track
+        this.
+
+        We do this by grandfathering in existing user threepids assuming that
+        they used one of the server configured trusted identity servers.
+        """
+        id_servers = set(self.config.trusted_third_party_id_servers)
+
+        def _bg_user_threepids_grandfather_txn(txn):
+            sql = """
+                INSERT INTO user_threepid_id_server
+                    (user_id, medium, address, id_server)
+                SELECT user_id, medium, address, ?
+                FROM user_threepids
+            """
+
+            txn.executemany(sql, [(id_server,) for id_server in id_servers])
+
+        if id_servers:
+            yield self.runInteraction(
+                "_bg_user_threepids_grandfather", _bg_user_threepids_grandfather_txn
+            )
+
+        yield self._end_background_update("user_threepids_grandfather")
+
+        return 1
+
+
+class RegistrationStore(RegistrationBackgroundUpdateStore):
+    def __init__(self, db_conn, hs):
+        super(RegistrationStore, self).__init__(db_conn, hs)
+
+        self._account_validity = hs.config.account_validity
+
+        # Create a background job for culling expired 3PID validity tokens
+        def start_cull():
+            # run as a background process to make sure that the database transactions
+            # have a logcontext to report to
+            return run_as_background_process(
+                "cull_expired_threepid_validation_tokens",
+                self.cull_expired_threepid_validation_tokens,
+            )
+
+        hs.get_clock().looping_call(start_cull, THIRTY_MINUTES_IN_MS)
 
     @defer.inlineCallbacks
     def add_access_token_to_user(self, user_id, token, device_id, valid_until_ms):
@@ -962,6 +1091,26 @@ class RegistrationStore(
         self._invalidate_cache_and_stream(txn, self.get_user_by_id, (user_id,))
         txn.call_after(self.is_guest.invalidate, (user_id,))
 
+    def record_user_external_id(
+        self, auth_provider: str, external_id: str, user_id: str
+    ) -> Deferred:
+        """Record a mapping from an external user id to a mxid
+
+        Args:
+            auth_provider: identifier for the remote auth provider
+            external_id: id on that system
+            user_id: complete mxid that it is mapped to
+        """
+        return self._simple_insert(
+            table="user_external_ids",
+            values={
+                "auth_provider": auth_provider,
+                "external_id": external_id,
+                "user_id": user_id,
+            },
+            desc="record_user_external_id",
+        )
+
     def user_set_password_hash(self, user_id, password_hash):
         """
         NB. This does *not* evict any cache because the one use for this
@@ -1131,36 +1280,6 @@ class RegistrationStore(
             desc="get_users_pending_deactivation",
         )
 
-    @defer.inlineCallbacks
-    def _bg_user_threepids_grandfather(self, progress, batch_size):
-        """We now track which identity servers a user binds their 3PID to, so
-        we need to handle the case of existing bindings where we didn't track
-        this.
-
-        We do this by grandfathering in existing user threepids assuming that
-        they used one of the server configured trusted identity servers.
-        """
-        id_servers = set(self.config.trusted_third_party_id_servers)
-
-        def _bg_user_threepids_grandfather_txn(txn):
-            sql = """
-                INSERT INTO user_threepid_id_server
-                    (user_id, medium, address, id_server)
-                SELECT user_id, medium, address, ?
-                FROM user_threepids
-            """
-
-            txn.executemany(sql, [(id_server,) for id_server in id_servers])
-
-        if id_servers:
-            yield self.runInteraction(
-                "_bg_user_threepids_grandfather", _bg_user_threepids_grandfather_txn
-            )
-
-        yield self._end_background_update("user_threepids_grandfather")
-
-        return 1
-
     def validate_threepid_session(self, session_id, client_secret, token, current_ts):
         """Attempt to validate a threepid session using a token
 
@@ -1172,6 +1291,10 @@ class RegistrationStore(
             current_ts (int): The current unix time in milliseconds. Used for
                 checking token expiry status
 
+        Raises:
+            ThreepidValidationError: if a matching validation token was not found or has
+                expired
+
         Returns:
             deferred str|None: A str representing a link to redirect the user
             to if there is one.
@@ -1348,17 +1471,6 @@ class RegistrationStore(
             self.clock.time_msec(),
         )
 
-    def set_user_deactivated_status_txn(self, txn, user_id, deactivated):
-        self._simple_update_one_txn(
-            txn=txn,
-            table="users",
-            keyvalues={"name": user_id},
-            updatevalues={"deactivated": 1 if deactivated else 0},
-        )
-        self._invalidate_cache_and_stream(
-            txn, self.get_user_deactivated_status, (user_id,)
-        )
-
     @defer.inlineCallbacks
     def set_user_deactivated_status(self, user_id, deactivated):
         """Set the `deactivated` property for the provided user to the provided value.
@@ -1374,3 +1486,14 @@ class RegistrationStore(
             user_id,
             deactivated,
         )
+
+    def set_user_deactivated_status_txn(self, txn, user_id, deactivated):
+        self._simple_update_one_txn(
+            txn=txn,
+            table="users",
+            keyvalues={"name": user_id},
+            updatevalues={"deactivated": 1 if deactivated else 0},
+        )
+        self._invalidate_cache_and_stream(
+            txn, self.get_user_deactivated_status, (user_id,)
+        )