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@@ -115,7 +115,17 @@ class DataStore(
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def __init__(self, database: Database, db_conn, hs):
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self.hs = hs
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self._clock = hs.get_clock()
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- self.database_engine = hs.database_engine
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+ self.database_engine = database.engine
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+
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+ all_users_native = are_all_users_on_domain(
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+ db_conn.cursor(), database.engine, hs.hostname
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+ )
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+ if not all_users_native:
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+ raise Exception(
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+ "Found users in database not native to %s!\n"
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+ "You cannot changed a synapse server_name after it's been configured"
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+ % (self.hostname,)
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+ )
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self._stream_id_gen = StreamIdGenerator(
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db_conn,
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@@ -555,3 +565,15 @@ class DataStore(
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retcols=["name", "password_hash", "is_guest", "admin", "user_type"],
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desc="search_users",
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)
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+
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+
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+def are_all_users_on_domain(txn, database_engine, domain):
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+ sql = database_engine.convert_param_style(
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+ "SELECT COUNT(*) FROM users WHERE name NOT LIKE ?"
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+ )
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+ pat = "%:" + domain
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+ txn.execute(sql, (pat,))
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+ num_not_matching = txn.fetchall()[0][0]
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+ if num_not_matching == 0:
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+ return True
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+ return False
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