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@ -119,6 +119,52 @@ defmodule Pleroma.Web.CommonAPI do
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end
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end
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def vote(user, object, choices) do
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with "Question" <- object.data["type"],
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{:author, false} <- {:author, object.data["actor"] == user.ap_id},
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{:existing_votes, []} <- {:existing_votes, Utils.get_existing_votes(user.ap_id, object)},
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{options, max_count} <- get_options_and_max_count(object),
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option_count <- Enum.count(options),
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{:choice_check, {choices, true}} <-
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{:choice_check, normalize_and_validate_choice_indices(choices, option_count)},
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{:count_check, true} <- {:count_check, Enum.count(choices) <= max_count} do
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answer_activities =
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Enum.map(choices, fn index ->
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answer_data = make_answer_data(user, object, Enum.at(options, index)["name"])
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ActivityPub.create(%{
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to: answer_data["to"],
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actor: user,
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context: object.data["context"],
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object: answer_data,
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additional: %{"cc" => answer_data["cc"]}
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})
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end)
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{:ok, answer_activities, object}
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else
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{:author, _} -> {:error, "Already voted"}
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{:existing_votes, _} -> {:error, "Already voted"}
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{:choice_check, {_, false}} -> {:error, "Invalid indices"}
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{:count_check, false} -> {:error, "Too many choices"}
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end
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end
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defp get_options_and_max_count(object) do
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if Map.has_key?(object.data, "anyOf") do
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{object.data["anyOf"], Enum.count(object.data["anyOf"])}
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else
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{object.data["oneOf"], 1}
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end
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end
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defp normalize_and_validate_choice_indices(choices, count) do
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Enum.map_reduce(choices, true, fn index, valid ->
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index = if is_binary(index), do: String.to_integer(index), else: index
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{index, if(valid, do: index < count, else: valid)}
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end)
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end
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def get_visibility(%{"visibility" => visibility}, in_reply_to)
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when visibility in ~w{public unlisted private direct},
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do: {visibility, get_replied_to_visibility(in_reply_to)}
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