ネタで作った安価bot (https://mstdn-workers.com/@anchor_bot で稼働中)

anchor_bot.py

from mastodon import Mastodon
import os
import re
import html
from textwrap import dedent
from mastodon import StreamListener

param_envs = "CLIENT_ID", "CLIENT_SECRET", "ACCESS_TOKEN", "API_BASE_URL"
mstdn = Mastodon(**{name.lower(): os.getenv(name) for name in param_envs})

DEBUG=False

class Target:
    def __init__(self, n):
        self.n = n
        self.n_original = n
        self.status = None
    
    def hit_status(self, status):
        self.status = status

class AnchorContainer:
    def __init__(self, status, num_list):
        self.status = status
        self.targets = [Target(n) for n in num_list]

class WaitingRemove:
    def __init__(self, status, n=100):
        self.status = status
        self.n = n

if 'anchors' not in globals():
    anchors = []
if 'remove_list' not in globals():
    remove_list = []

def remove_tag(html):
    return re.sub(r"<[^>]+?>", '', html)

def to_oneline(html):
    return html.replace("<br />", ' ').replace("</p><p>", '  ').replace('\n', '\\n')

def remove_mention(content):
    return content.replace("@", "＠")

def remove_hashtag(content):
    return content.replace("#", "＃")

def remove_image(content, status):
    for media in status.media_attachments:
        content = content.replace(media.text_url, "[画像]")
    return content

def get_anchor(content):
    return [int(n_str) for n_str in re.findall(r">>(-?\d+)", content)]

def get_anchor_from_status(status):
    content = html.unescape(remove_tag(status['content']))
    return get_anchor(content)

def append_anchor_from_status(status):
    anchor_nums = sorted(set(get_anchor_from_status(status)))
    if anchor_nums:
        if all(0 < n <= 1000 for n in anchor_nums):
            anchors.append(AnchorContainer(status, anchor_nums))            
            post_you_got_it(status, anchor_nums)
        else:
            post_anchor_out_of_range(status)

def decrement_anchors():
    for a in anchors:
        for t in a.targets:
            t.n -= 1
def decrement_remove():
    for r in remove_list:
        r.n -= 1

def get_status_str(status):
    content = html.unescape(remove_tag(to_oneline(status.content)))
    content = remove_mention(content)
    content = remove_hashtag(content)
    content = remove_image(content, status)
    return f'> "{content}"' if len(content) < 20 else status.url

def post_you_re_anchored_and_anchor_hit(anchor, display_all=False):
    lines = [get_status_str(anchor.status) + " の"]
    for t in anchor.targets:
        if t.status:
            target_is_near = t.n > -15
            if target_is_near or display_all:
                lines.extend([
                    f">>{t.n_original}は次の投稿となりました",
                    get_status_str(t.status)
                ])
    if len(lines) < 4:
        status = mstdn.status_post("\n".join(lines), visibility="private" if DEBUG else "public")
    else:
        status = mstdn.status_post(
            spoiler_text="\n".join(lines[:3]) + "...",
            status="\n".join(lines[3:]),
            visibility="private" if DEBUG else "public"
        )
    remove_list.append(WaitingRemove(
        status,
        100))

def post_anchor_out_of_range(status):
    remove_list.append(WaitingRemove(
        mstdn.status_post(dedent(f"""\
            @{status['account']['username']} {status.url} 安価は 0 < n <= 1000 で指定してください"""),
            visibility="private"),
        100))

def post_you_got_it(status, anchor_nums):
    remove_list.append(WaitingRemove(
        mstdn.status_post(dedent(f"""
            {status.url} の{', '.join(map(str, anchor_nums))}個後の投稿をピックアップします
            （幾つかのbotの投稿はスキップされます）"""),
            visibility="private" if DEBUG else "public"),
        10))

def post_for_zero(status):
    for a in anchors:
        for t in a.targets:
            if t.n == 0:
                t.hit_status(status)
        if all(t.n <= 0 for t in a.targets):
            anchors.remove(a)
            post_you_re_anchored_and_anchor_hit(a, display_all=True)
        elif any(t.n == 0 for t in a.targets):
            done_targets = [t for t in a.targets if t.n < 0]
            undone_targets = [t for t in a.targets if t.n > 0]
            prev_target_n = max(t.n for t in done_targets) if done_targets else -20
            next_target_n = min(t.n for t in undone_targets) if undone_targets else 20
            target_is_near = prev_target_n > -15 or next_target_n < 15
            if target_is_near: continue
            post_you_re_anchored_and_anchor_hit(a)

def remove_bot_statuses():
    for r in [r for r in remove_list if r.n == 0]:
        remove_list.remove(r)
        status_current = mstdn.status(r.status.id)
        if status_current.favourites_count or status_current.reblogs_count:
            pass
        else:
            mstdn.status_delete(r.status.id)

def remove_anchor_by_status_id(status_id):
    for a in [a for a in anchors if a.status.id == status_id]:
        anchors.remove(a)

def is_some_bots(status):
    app = status['application']
    if not app: return False
    bot_names = [
        'オフ会カレンダー',
        'off_bot',
        '安価bot',
        '不適切bot',
        "トレンドbot",
        'nekonyanApp',
        '色bot',
        'ダイスbot',
    ]
    return app['name'] in bot_names

class AnchorListener(StreamListener):
    def on_update(self, status):
        if is_some_bots(status): return
        decrement_anchors()
        decrement_remove()
        post_for_zero(status)
        append_anchor_from_status(status)
        remove_bot_statuses()
    def on_delete(self, status_id):
        remove_anchor_by_status_id(status_id)

listener = AnchorListener()

mstdn.stream_local(listener)

icon.png

icon_generate.sh

convert -size 300x300 canvas:"#d9e1e8" -fill "#9baec8" -gravity Center -pointsize 50 -annotate 0 ">>42" icon.png

安価bot

当botの運用とコードは現状有姿にて提供される

2018/02/05 16:46 廃止要求により停止。再開は様子を見る

廃止要求意図の聞き取りと改善要望を募り
2018/02/06 15:33 誰かを呼び出さないよう改修し再開
廃止要求あるいはLTLが再び地雷原になるようであれば今度こそ完全に廃止する