138 lines
		
	
	
	
		
			3.4 KiB
		
	
	
	
		
			Elixir
		
	
	
	
	
	
			
		
		
	
	
			138 lines
		
	
	
	
		
			3.4 KiB
		
	
	
	
		
			Elixir
		
	
	
	
	
	
| defmodule Pleroma.Search.Builtin do
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|   @behaviour Pleroma.Search
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| 
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|   alias Pleroma.Repo
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|   alias Pleroma.User
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|   alias Pleroma.Activity
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|   alias Pleroma.Web.MastodonAPI.AccountView
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|   alias Pleroma.Web.MastodonAPI.StatusView
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|   alias Pleroma.Web.Endpoint
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| 
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|   require Logger
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| 
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|   @impl Pleroma.Search
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|   def search(_conn, %{q: query} = params, options) do
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|     version = Keyword.get(options, :version)
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|     timeout = Keyword.get(Repo.config(), :timeout, 15_000)
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|     query = String.trim(query)
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|     default_values = %{"statuses" => [], "accounts" => [], "hashtags" => []}
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| 
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|     default_values
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|     |> Enum.map(fn {resource, default_value} ->
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|       if params[:type] in [nil, resource] do
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|         {resource, fn -> resource_search(version, resource, query, options) end}
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|       else
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|         {resource, fn -> default_value end}
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|       end
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|     end)
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|     |> Task.async_stream(fn {resource, f} -> {resource, with_fallback(f)} end,
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|       timeout: timeout,
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|       on_timeout: :kill_task
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|     )
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|     |> Enum.reduce(default_values, fn
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|       {:ok, {resource, result}}, acc ->
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|         Map.put(acc, resource, result)
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| 
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|       _error, acc ->
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|         acc
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|     end)
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|   end
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| 
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|   defp resource_search(_, "accounts", query, options) do
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|     accounts = with_fallback(fn -> User.search(query, options) end)
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| 
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|     AccountView.render("index.json",
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|       users: accounts,
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|       for: options[:for_user],
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|       embed_relationships: options[:embed_relationships]
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|     )
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|   end
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| 
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|   defp resource_search(_, "statuses", query, options) do
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|     statuses = with_fallback(fn -> Activity.search(options[:for_user], query, options) end)
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| 
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|     StatusView.render("index.json",
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|       activities: statuses,
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|       for: options[:for_user],
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|       as: :activity
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|     )
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|   end
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| 
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|   defp resource_search(:v2, "hashtags", query, options) do
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|     tags_path = Endpoint.url() <> "/tag/"
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| 
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|     query
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|     |> prepare_tags(options)
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|     |> Enum.map(fn tag ->
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|       %{name: tag, url: tags_path <> tag}
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|     end)
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|   end
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| 
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|   defp resource_search(:v1, "hashtags", query, options) do
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|     prepare_tags(query, options)
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|   end
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| 
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|   defp prepare_tags(query, options) do
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|     tags =
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|       query
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|       |> preprocess_uri_query()
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|       |> String.split(~r/[^#\w]+/u, trim: true)
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|       |> Enum.uniq_by(&String.downcase/1)
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| 
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|     explicit_tags = Enum.filter(tags, fn tag -> String.starts_with?(tag, "#") end)
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| 
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|     tags =
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|       if Enum.any?(explicit_tags) do
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|         explicit_tags
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|       else
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|         tags
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|       end
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| 
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|     tags = Enum.map(tags, fn tag -> String.trim_leading(tag, "#") end)
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| 
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|     tags =
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|       if Enum.empty?(explicit_tags) && !options[:skip_joined_tag] do
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|         add_joined_tag(tags)
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|       else
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|         tags
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|       end
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| 
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|     Pleroma.Pagination.paginate(tags, options)
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|   end
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| 
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|   # If `query` is a URI, returns last component of its path, otherwise returns `query`
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|   defp preprocess_uri_query(query) do
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|     if query =~ ~r/https?:\/\// do
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|       query
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|       |> String.trim_trailing("/")
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|       |> URI.parse()
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|       |> Map.get(:path)
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|       |> String.split("/")
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|       |> Enum.at(-1)
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|     else
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|       query
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|     end
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|   end
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| 
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|   defp add_joined_tag(tags) do
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|     tags
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|     |> Kernel.++([joined_tag(tags)])
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|     |> Enum.uniq_by(&String.downcase/1)
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|   end
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| 
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|   defp joined_tag(tags) do
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|     tags
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|     |> Enum.map(fn tag -> String.capitalize(tag) end)
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|     |> Enum.join()
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|   end
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| 
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|   defp with_fallback(f, fallback \\ []) do
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|     try do
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|       f.()
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|     rescue
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|       error ->
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|         Logger.error("#{__MODULE__} search error: #{inspect(error)}")
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|         fallback
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|     end
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|   end
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| end
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