91 lines
2.2 KiB
Lua
Executable File
91 lines
2.2 KiB
Lua
Executable File
local command = 'wikipedia <query>'
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local doc = [[```
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/wikipedia <query>
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Returns an article from Wikipedia.
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Aliases: /w, /wiki
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```]]
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local triggers = {
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'^/wikipedia[@'..bot.username..']*',
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'^/wiki[@'..bot.username..']*',
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'^/w[@'..bot.username..']*$',
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'^/w[@'..bot.username..']* '
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}
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local action = function(msg)
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local input = msg.text:input()
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if not input then
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if msg.reply_to_message and msg.reply_to_message.text then
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input = msg.reply_to_message.text
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else
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sendMessage(msg.chat.id, doc, true, msg.message_id, true)
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return
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end
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end
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local gurl = 'https://ajax.googleapis.com/ajax/services/search/web?v=1.0&rsz=1&q=site:wikipedia.org%20'
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local wurl = 'https://en.wikipedia.org/w/api.php?action=query&prop=extracts&format=json&exchars=4000&exsectionformat=plain&titles='
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local jstr, res = HTTPS.request(gurl .. URL.escape(input))
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if res ~= 200 then
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sendReply(msg, config.errors.connection)
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return
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end
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local jdat = JSON.decode(jstr)
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if not jdat.responseData then
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sendReply(msg, config.errors.connection)
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return
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end
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if not jdat.responseData.results[1] then
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sendReply(msg, config.errors.results)
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return
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end
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local url = jdat.responseData.results[1].unescapedUrl
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local title = jdat.responseData.results[1].titleNoFormatting:gsub(' %- Wikipedia, the free encyclopedia', '')
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-- 'https://en.wikipedia.org/wiki/':len() == 30
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jstr, res = HTTPS.request(wurl .. url:sub(31))
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if res ~= 200 then
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sendReply(msg, config.error.connection)
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return
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end
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local text = JSON.decode(jstr).query.pages
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for k,v in pairs(text) do
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text = v.extract
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break -- Seriously, there's probably a way more elegant solution.
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end
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if not text then
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sendReply(msg, config.errors.results)
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return
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end
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text = text:gsub('</?.->', '')
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local l = text:find('\n')
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if l then
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text = text:sub(1, l-1)
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end
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title = title:gsub('%(.+%)', '')
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local esctitle = title:gsub("[%^$()%%.%[%]*+%-?]","%%%1")
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local output = text:gsub('%[.+%]',''):gsub(esctitle, '*%1*') .. '\n'
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if url:find('%(') then
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output = output .. url:gsub('_', '\\_')
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else
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output = output .. '[Read more.](' .. url .. ')'
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end
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sendMessage(msg.chat.id, output, true, nil, true)
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end
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return {
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action = action,
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triggers = triggers,
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doc = doc,
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command = command
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}
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