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https://github.com/philomena-dev/philomena.git
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63 lines
1.8 KiB
Elixir
63 lines
1.8 KiB
Elixir
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defmodule PhilomenaWeb.Profile.AliasController do
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use PhilomenaWeb, :controller
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alias Philomena.UserFingerprints.UserFingerprint
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alias Philomena.UserIps.UserIp
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alias Philomena.Users.User
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alias Philomena.Repo
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import Ecto.Query
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plug PhilomenaWeb.CanaryMapPlug, index: :show_details
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plug :load_and_authorize_resource, model: User, id_field: "slug", id_name: "profile_id", persisted: true
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def index(conn, _params) do
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user = conn.assigns.user
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# N.B.: subquery runs faster and is easier to read
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# than the equivalent join, but Ecto doesn't support
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# that for some reason (and ActiveRecord does??)
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ip_matches =
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User
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|> join(:inner, [u], _ in assoc(u, :user_ips))
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|> join(:left, [u, ui1], ui2 in UserIp, on: ui1.ip == ui2.ip)
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|> where([u, _ui1, ui2], u.id != ^user.id and ui2.user_id == ^user.id)
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|> select([u, _ui1, _ui2], u)
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|> preload(:bans)
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|> Repo.all()
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|> Map.new(&{&1.id, &1})
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fp_matches =
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User
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|> join(:inner, [u], _ in assoc(u, :user_fingerprints))
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|> join(:left, [u, uf1], uf2 in UserFingerprint, on: uf1.fingerprint == uf2.fingerprint)
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|> where([u, _uf1, uf2], u.id != ^user.id and uf2.user_id == ^user.id)
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|> select([u, _uf1, _uf2], u)
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|> preload(:bans)
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|> Repo.all()
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|> Map.new(&{&1.id, &1})
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both_matches =
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Map.take(ip_matches, Map.keys(fp_matches))
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ip_matches =
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Map.drop(ip_matches, Map.keys(both_matches))
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fp_matches =
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Map.drop(fp_matches, Map.keys(both_matches))
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both_matches = Map.values(both_matches)
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ip_matches = Map.values(ip_matches)
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fp_matches = Map.values(fp_matches)
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render(
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conn,
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"index.html",
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title: "Potential Aliases for `#{user.name}'",
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both_matches: both_matches,
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ip_matches: ip_matches,
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fp_matches: fp_matches
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)
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end
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end
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