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782 B
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26 lines
782 B
ReStructuredText
Room History Visibility
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=======================
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The visibility of events to users before they joined can be controlled by the
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``m.room.history_visibility`` state event.
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More specifically, the string value of the content key ``history_visibility``
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controls the visibility of events. The valid values are:
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- ``shared``
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- ``invited``
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- ``joined``
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By default, ``history_visibility`` is set to ``shared``.
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The rules governing whether a user is allowed to see an event depend solely on
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the state at that event:
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1. If the user was joined, allow.
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2. If the user was invited and the ``history_visibility`` was set to
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``invited`` or ``shared``, allow.
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3. If the user was neither invited nor joined but the ``history_visibility``
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was set to ``shared``, allow.
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4. Otherwise, deny.
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