Nola rename: The Big Move, Refs T77

1 files changed, 556 insertions, 0 deletions

diff --git a/lib/nola_plugins/txt_plugin.ex b/lib/nola_plugins/txt_plugin.ex
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+defmodule Nola.IRC.TxtPlugin do
+  alias IRC.UserTrack
+  require Logger
+
+  @moduledoc """
+  # [txt]({{context_path}}/txt)
+
+  * **.txt**: liste des fichiers et statistiques.
+  Les fichiers avec une `*` sont vérrouillés.
+  [Voir sur le web]({{context_path}}/txt).
+
+  * **!txt**: lis aléatoirement une ligne dans tous les fichiers.
+  * **!txt `<recherche>`**: recherche une ligne dans tous les fichiers.
+
+  * **~txt**: essaie de générer une phrase (markov).
+  * **~txt `<début>`**: essaie de générer une phrase commencant par `<debut>`.
+
+  * **!`FICHIER`**: lis aléatoirement une ligne du fichier `FICHIER`.
+  * **!`FICHIER` `<chiffre>`**: lis la ligne `<chiffre>` du fichier `FICHIER`.
+  * **!`FICHIER` `<recherche>`**: recherche une ligne contenant `<recherche>` dans `FICHIER`.
+
+  * **+txt `<file`>**: crée le fichier `<file>`.
+  * **+`FICHIER` `<texte>`**: ajoute une ligne `<texte>` dans le fichier `FICHIER`.
+  * **-`FICHIER` `<chiffre>`**: supprime la ligne `<chiffre>` du fichier `FICHIER`.
+
+  * **-txtrw, +txtrw**. op seulement. active/désactive le mode lecture seule.
+  * **+txtlock `<fichier>`, -txtlock `<fichier>`**. op seulement. active/désactive le verrouillage d'un fichier.
+
+  Insérez `\\\\` pour faire un saut de ligne.
+  """
+
+  def short_irc_doc, do: "!txt https://sys.115ans.net/irc/txt "
+  def irc_doc, do: @moduledoc
+
+  def start_link() do
+    GenServer.start_link(__MODULE__, [], name: __MODULE__)
+  end
+
+  defstruct triggers: %{}, rw: true, locks: nil, markov_handler: nil, markov: nil
+
+  def random(file) do
+    GenServer.call(__MODULE__, {:random, file})
+  end
+
+  def reply_random(message, file) do
+    if line = random(file) do
+      line
+      |> format_line(nil, message)
+      |> message.replyfun.()
+
+      line
+    end
+  end
+
+  def init([]) do
+    dets_locks_filename = (Nola.data_path() <> "/" <> "txtlocks.dets") |> String.to_charlist
+    {:ok, locks} = :dets.open_file(dets_locks_filename, [])
+    markov_handler = Keyword.get(Application.get_env(:nola, __MODULE__, []), :markov_handler, Nola.IRC.TxtPlugin.Markov.Native)
+    {:ok, markov} = markov_handler.start_link()
+    {:ok, _} = Registry.register(IRC.PubSub, "triggers", [plugin: __MODULE__])
+    {:ok, %__MODULE__{locks: locks, markov_handler: markov_handler, markov: markov, triggers: load()}}
+  end
+
+  def handle_info({:received, "!reload", _, chan}, state) do
+    {:noreply, %__MODULE__{state | triggers: load()}}
+  end
+
+  #
+  # ADMIN: RW/RO
+  #
+
+  def handle_info({:irc, :trigger, "txtrw", msg = %{channel: channel, trigger: %{type: :plus}}}, state = %{rw: false}) do
+    if channel && UserTrack.operator?(msg.network, channel, msg.sender.nick) do
+      msg.replyfun.("txt: écriture réactivée")
+      {:noreply, %__MODULE__{state | rw: true}}
+    else
+      {:noreply, state}
+    end
+  end
+
+  def handle_info({:irc, :trigger, "txtrw", msg = %{channel: channel, trigger: %{type: :minus}}}, state = %{rw: true}) do
+    if channel && UserTrack.operator?(msg.network, channel, msg.sender.nick) do
+      msg.replyfun.("txt: écriture désactivée")
+      {:noreply, %__MODULE__{state | rw: false}}
+    else
+      {:noreply, state}
+    end
+  end
+
+  #
+  # ADMIN: LOCKS
+  #
+
+  def handle_info({:irc, :trigger, "txtlock", msg = %{trigger: %{type: :plus, args: [trigger]}}}, state) do
+    with \
+      {trigger, _} <- clean_trigger(trigger),
+      true <- UserTrack.operator?(msg.network, msg.channel, msg.sender.nick)
+    do
+      :dets.insert(state.locks, {trigger})
+      msg.replyfun.("txt: #{trigger} verrouillé")
+    end
+    {:noreply, state}
+  end
+
+  def handle_info({:irc, :trigger, "txtlock", msg = %{trigger: %{type: :minus, args: [trigger]}}}, state) do
+    with \
+      {trigger, _} <- clean_trigger(trigger),
+      true <- UserTrack.operator?(msg.network, msg.channel, msg.sender.nick),
+      true <- :dets.member(state.locks, trigger)
+    do
+      :dets.delete(state.locks, trigger)
+      msg.replyfun.("txt: #{trigger} déverrouillé")
+    end
+    {:noreply, state}
+  end
+
+  #
+  # FILE LIST
+  #
+
+  def handle_info({:irc, :trigger, "txt", msg = %{trigger: %{type: :dot}}}, state) do
+    map = Enum.map(state.triggers, fn({key, data}) ->
+      ignore? = String.contains?(key, ".")
+      locked? = case :dets.lookup(state.locks, key) do
+        [{trigger}] -> "*"
+        _ -> ""
+      end
+
+      unless ignore?, do: "#{key}: #{to_string(Enum.count(data))}#{locked?}"
+    end)
+    |> Enum.filter(& &1)
+    total = Enum.reduce(state.triggers, 0, fn({_, data}, acc) ->
+      acc + Enum.count(data)
+    end)
+    detail = Enum.join(map, ", ")
+    total = ". total: #{Enum.count(state.triggers)} fichiers, #{to_string(total)} lignes. Détail: https://sys.115ans.net/irc/txt"
+
+    ro = if !state.rw, do: " (lecture seule activée)", else: ""
+
+    (detail<>total<>ro)
+    |> msg.replyfun.()
+    {:noreply, state}
+  end
+
+  #
+  # GLOBAL: RANDOM
+  #
+
+  def handle_info({:irc, :trigger, "txt", msg = %{trigger: %{type: :bang, args: []}}}, state) do
+    result = Enum.reduce(state.triggers, [], fn({trigger, data}, acc) ->
+      Enum.reduce(data, acc, fn({l, _}, acc) ->
+        [{trigger, l} | acc]
+      end)
+    end)
+    |> Enum.shuffle()
+
+    if !Enum.empty?(result) do
+      {source, line} = Enum.random(result)
+      msg.replyfun.(format_line(line, "#{source}: ", msg))
+    end
+    {:noreply, state}
+  end
+
+  def handle_info({:irc, :trigger, "txt", msg = %{trigger: %{type: :bang, args: args}}}, state) do
+    grep = Enum.join(args, " ")
+    |> String.downcase
+    |> :unicode.characters_to_nfd_binary()
+
+    result = with_stateful_results(msg, {:bang,"txt",msg.network,msg.channel,grep}, fn() ->
+      Enum.reduce(state.triggers, [], fn({trigger, data}, acc) ->
+        if !String.contains?(trigger, ".") do
+          Enum.reduce(data, acc, fn({l, _}, acc) ->
+            [{trigger, l} | acc]
+          end)
+        else
+          acc
+        end
+      end)
+      |> Enum.filter(fn({_, line}) ->
+        line
+        |> String.downcase()
+        |> :unicode.characters_to_nfd_binary()
+        |> String.contains?(grep)
+      end)
+      |> Enum.shuffle()
+    end)
+
+    if result do
+      {source, line} = result
+      msg.replyfun.(["#{source}: " | line])
+    end
+    {:noreply, state}
+  end
+
+  def with_stateful_results(msg, key, initfun) do
+    me = self()
+    scope = {msg.network, msg.channel || msg.sender.nick}
+    key = {__MODULE__, me, scope, key}
+    with_stateful_results(key, initfun)
+  end
+
+  def with_stateful_results(key, initfun) do
+    pid = case :global.whereis_name(key) do
+      :undefined ->
+        start_stateful_results(key, initfun.())
+      pid -> pid
+    end
+    if pid, do: wait_stateful_results(key, initfun, pid)
+  end
+
+  def start_stateful_results(key, []) do
+    nil
+  end
+
+  def start_stateful_results(key, list) do
+    me = self()
+    {pid, _} = spawn_monitor(fn() ->
+      Process.monitor(me)
+      stateful_results(me, list)
+    end)
+    :yes = :global.register_name(key, pid)
+    pid
+  end
+
+  def wait_stateful_results(key, initfun, pid) do
+    send(pid, :get)
+    receive do
+      {:stateful_results, line} ->
+        line
+      {:DOWN, _ref, :process, ^pid, reason} ->
+        with_stateful_results(key, initfun)
+    after
+      5000 ->
+        nil
+    end
+  end
+
+  defp stateful_results(owner, []) do
+    send(owner, :empty)
+    :ok
+  end
+
+  @stateful_results_expire :timer.minutes(30)
+  defp stateful_results(owner, [line | rest] = acc) do
+    receive do
+      :get ->
+        send(owner, {:stateful_results, line})
+        stateful_results(owner, rest)
+      {:DOWN, _ref, :process, ^owner, _} ->
+        :ok
+      after
+        @stateful_results_expire -> :ok
+    end
+  end
+
+  #
+  # GLOBAL: MARKOV
+  #
+
+  def handle_info({:irc, :trigger, "txt", msg = %{trigger: %{type: :tilde, args: []}}}, state) do
+    case state.markov_handler.sentence(state.markov) do
+      {:ok, line} ->
+        msg.replyfun.(line)
+      error ->
+        Logger.error "Txt Markov error: "<>inspect error
+    end
+    {:noreply, state}
+  end
+
+  def handle_info({:irc, :trigger, "txt", msg = %{trigger: %{type: :tilde, args: complete}}}, state) do
+    complete = Enum.join(complete, " ")
+    case state.markov_handler.complete_sentence(complete, state.markov) do
+      {:ok, line} ->
+        msg.replyfun.(line)
+      error ->
+        Logger.error "Txt Markov error: "<>inspect error
+    end
+    {:noreply, state}
+  end
+
+  #
+  # TXT CREATE
+  #
+
+  def handle_info({:irc, :trigger, "txt", msg = %{trigger: %{type: :plus, args: [trigger]}}}, state) do
+    with \
+      {trigger, _} <- clean_trigger(trigger),
+      true <- can_write?(state, msg, trigger),
+      :ok <- create_file(trigger)
+    do
+      msg.replyfun.("#{trigger}.txt créé. Ajouter: `+#{trigger} …` ; Lire: `!#{trigger}`")
+      {:noreply, %__MODULE__{state | triggers: load()}}
+    else
+      _ -> {:noreply, state}
+    end
+  end
+
+  #
+  # TXT: RANDOM
+  #
+
+  def handle_info({:irc, :trigger, trigger, m = %{trigger: %{type: :query, args: opts}}}, state) do
+    {trigger, _} = clean_trigger(trigger)
+    if Map.get(state.triggers, trigger) do
+      url = if m.channel do
+        NolaWeb.Router.Helpers.irc_url(NolaWeb.Endpoint, :txt, m.network, NolaWeb.format_chan(m.channel), trigger)
+      else
+        NolaWeb.Router.Helpers.irc_url(NolaWeb.Endpoint, :txt, trigger)
+      end
+      m.replyfun.("-> #{url}")
+    end
+    {:noreply, state}
+  end
+
+  def handle_info({:irc, :trigger, trigger, msg = %{trigger: %{type: :bang, args: opts}}}, state) do
+    {trigger, _} = clean_trigger(trigger)
+    line = get_random(msg, state.triggers, trigger, String.trim(Enum.join(opts, " ")))
+    if line do
+      msg.replyfun.(format_line(line, nil, msg))
+    end
+    {:noreply, state}
+  end
+
+  #
+  # TXT: ADD
+  #
+
+  def handle_info({:irc, :trigger, trigger, msg = %{trigger: %{type: :plus, args: content}}}, state) do
+    with \
+      true <- can_write?(state, msg, trigger),
+      {:ok, idx} <- add(state.triggers, msg.text)
+    do
+      msg.replyfun.("#{msg.sender.nick}: ajouté à #{trigger}. (#{idx})")
+      {:noreply, %__MODULE__{state | triggers: load()}}
+    else
+      {:error, {:jaro, string, idx}} ->
+        msg.replyfun.("#{msg.sender.nick}: doublon #{trigger}##{idx}: #{string}")
+      error ->
+        Logger.debug("txt add failed: #{inspect error}")
+        {:noreply, state}
+    end
+  end
+
+  #
+  # TXT: DELETE
+  #
+
+  def handle_info({:irc, :trigger, trigger, msg = %{trigger: %{type: :minus, args: [id]}}}, state) do
+    with \
+      true <- can_write?(state, msg, trigger),
+      data <- Map.get(state.triggers, trigger),
+      {id, ""} <- Integer.parse(id),
+      {text, _id} <- Enum.find(data, fn({_, idx}) -> id-1 == idx end)
+    do
+      data = data |> Enum.into(Map.new)
+      data = Map.delete(data, text)
+      msg.replyfun.("#{msg.sender.nick}: #{trigger}.txt##{id} supprimée: #{text}")
+      dump(trigger, data)
+      {:noreply, %__MODULE__{state | triggers: load()}}
+    else
+      _ ->
+        {:noreply, state}
+    end
+  end
+
+  def handle_info(:reload_markov, state=%__MODULE__{triggers: triggers, markov: markov}) do
+    state.markov_handler.reload(state.triggers, state.markov)
+    {:noreply, state}
+  end
+
+  def handle_info(msg, state) do
+    {:noreply, state}
+  end
+
+  def handle_call({:random, file}, _from, state) do
+    random = get_random(nil, state.triggers, file, [])
+    {:reply, random, state}
+  end
+
+  def terminate(_reason, state) do
+    if state.locks do
+      :dets.sync(state.locks)
+      :dets.close(state.locks)
+    end
+    :ok
+  end
+
+  # Load/Reloads text files from disk
+  defp load() do
+    triggers = Path.wildcard(directory() <> "/*.txt")
+    |> Enum.reduce(%{}, fn(path, m) ->
+      file = Path.basename(path)
+      key = String.replace(file, ".txt", "")
+      data = directory() <> file
+      |> File.read!
+      |> String.split("\n")
+      |> Enum.reject(fn(line) ->
+        cond do
+          line == "" -> true
+          !line -> true
+          true -> false
+        end
+      end)
+      |> Enum.with_index
+      Map.put(m, key, data)
+    end)
+    |> Enum.sort
+    |> Enum.into(Map.new)
+
+    send(self(), :reload_markov)
+    triggers
+  end
+
+  defp dump(trigger, data) do
+    data = data
+    |> Enum.sort_by(fn({_, idx}) -> idx end)
+    |> Enum.map(fn({text, _}) -> text end)
+    |> Enum.join("\n")
+    File.write!(directory() <> "/" <> trigger <> ".txt", data<>"\n", [])
+  end
+
+  defp get_random(msg, triggers, trigger, []) do
+    if data = Map.get(triggers, trigger) do
+      {data, _idx} = Enum.random(data)
+      data
+    else
+      nil
+    end
+  end
+
+  defp get_random(msg, triggers, trigger, opt) do
+    arg = case Integer.parse(opt) do
+      {pos, ""} -> {:index, pos}
+      {_pos, _some_string} -> {:grep, opt}
+      _error -> {:grep, opt}
+    end
+    get_with_param(msg, triggers, trigger, arg)
+  end
+
+  defp get_with_param(msg, triggers, trigger, {:index, pos}) do
+    data = Map.get(triggers, trigger, %{})
+    case Enum.find(data, fn({_, index}) -> index+1 == pos end) do
+      {text, _} -> text
+      _ -> nil
+    end
+  end
+
+  defp get_with_param(msg, triggers, trigger, {:grep, query}) do
+    out = with_stateful_results(msg, {:grep, trigger, query}, fn() ->
+      data = Map.get(triggers, trigger, %{})
+      regex = Regex.compile!("#{query}", "i")
+      Enum.filter(data, fn({txt, _}) -> Regex.match?(regex, txt) end)
+      |> Enum.map(fn({txt, _}) -> txt end)
+      |> Enum.shuffle()
+    end)
+    if out, do: out
+  end
+
+  defp create_file(name) do
+    File.touch!(directory() <> "/" <> name <> ".txt")
+    :ok
+  end
+
+  defp add(triggers, trigger_and_content) do
+    case String.split(trigger_and_content, " ", parts: 2) do
+      [trigger, content] ->
+        {trigger, _} = clean_trigger(trigger)
+
+
+        if Map.has_key?(triggers, trigger) do
+          jaro = Enum.find(triggers[trigger], fn({string, idx}) -> String.jaro_distance(content, string) > 0.9 end)
+
+          if jaro do
+            {string, idx} = jaro
+            {:error, {:jaro, string, idx}}
+          else
+            File.write!(directory() <> "/" <> trigger <> ".txt", content<>"\n", [:append])
+            idx = Enum.count(triggers[trigger])+1
+            {:ok, idx}
+          end
+        else
+          {:error, :notxt}
+        end
+      _ -> {:error, :badarg}
+    end
+  end
+
+  # fixme: this is definitely the ugliest thing i've ever done
+  defp clean_trigger(trigger) do
+    [trigger | opts] = trigger
+    |> String.strip
+    |> String.split(" ", parts: 2)
+
+    trigger = trigger
+    |> String.downcase
+    |> :unicode.characters_to_nfd_binary()
+    |> String.replace(~r/[^a-z0-9._]/, "")
+    |> String.trim(".")
+    |> String.trim("_")
+
+    {trigger, opts}
+  end
+
+  def format_line(line, prefix, msg) do
+    prefix = unless(prefix, do: "", else: prefix)
+    prefix <> line
+    |> String.split("\\\\")
+    |> Enum.map(fn(line) ->
+      String.split(line, "\\\\\\\\")
+    end)
+    |> List.flatten()
+    |> Enum.map(fn(line) ->
+      String.trim(line)
+      |> Tmpl.render(msg)
+    end)
+  end
+
+  def directory() do
+    Application.get_env(:nola, :data_path) <> "/irc.txt/"
+  end
+
+  defp can_write?(%{rw: rw?, locks: locks}, msg = %{channel: nil, sender: sender}, trigger) do
+    admin? = IRC.admin?(sender)
+    locked? = case :dets.lookup(locks, trigger) do
+      [{trigger}] -> true
+      _ -> false
+    end
+    unlocked? = if rw? == false, do: false, else: !locked?
+
+    can? = unlocked? || admin?
+
+    if !can? do
+      reason = if !rw?, do: "lecture seule", else: "fichier vérrouillé"
+      msg.replyfun.("#{sender.nick}: permission refusée (#{reason})")
+    end
+    can?
+  end
+
+  defp can_write?(state = %__MODULE__{rw: rw?, locks: locks}, msg = %{channel: channel, sender: sender}, trigger) do
+    admin? = IRC.admin?(sender)
+    operator? = IRC.UserTrack.operator?(msg.network, channel, sender.nick)
+    locked? = case :dets.lookup(locks, trigger) do
+      [{trigger}] -> true
+      _ -> false
+    end
+    unlocked? = if rw? == false, do: false, else: !locked?
+    can? = admin? || operator? || unlocked?
+
+    if !can? do
+      reason = if !rw?, do: "lecture seule", else: "fichier vérrouillé"
+      msg.replyfun.("#{sender.nick}: permission refusée (#{reason})")
+    end
+    can?
+  end
+
+end