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Mikubot-2/miku/plugins/preview.lua
2017-08-14 23:39:44 +02:00

92 lines
3.0 KiB
Lua

local preview = {}
preview.command = 'preview <link>'
function preview:init(config)
preview.triggers = utilities.triggers(self.info.username, config.cmd_pat):t('preview', true).table
preview.inline_triggers = {
"^[Pp][Rr] (https?://[%w-_%.%?%.,:;/%+=&%~%%#]+)$"
}
preview.doc = [[*
]]..config.cmd_pat..[[preview* _<URL>_
Erstellt einen Preview-Link]]
end
local api_key = cred_data.iframely_api_key
function preview:inline_callback(inline_query, config, matches)
local preview_url = matches[1]
local res, code = https.request('https://iframe.ly/api/oembed?url='..URL.escape(preview_url)..'&api_key='..api_key)
if code ~= 200 then abort_inline_query(inline_query) return end
local data = json.decode(res)
if data.title then
title = unescape(data.title:gsub('"', '\\"'))
else
title = 'Kein Titel'
end
if data.description then
description = unescape(data.description:gsub('"', '\\"'))
description_in_text = '\n'..description
if string.len(description_in_text) > 300 then
description_in_text = string.sub(description_in_text, 1, 300)..'...'
else
description_in_text = description_in_text
end
else
description_in_text = ''
description = 'Keine Beschreibung verfügbar'
end
if data.provider_name then
provider_name = data.provider_name:gsub('"', '\\"')
else
provider_name = preview_url:match('^%w+://([^/]+)') -- we only need the domain
end
if data.thumbnail_url then
thumb = data.thumbnail_url
width = data.thumbnail_width
height = data.thumbnail_height
else
thumb = 'https://anditest.perseus.uberspace.de/inlineQuerys/generic/internet.jpg'
width = 150
height = 150
end
local message_text = '<b>'..title..'</b>'..description_in_text..'\n<i>- '..provider_name..'</i>'
local results = '[{"type":"article","id":"77","title":"'..title..'","description":"'..description..'","url":"'..preview_url..'","thumb_url":"'..thumb..'","thumb_width":'..width..',"thumb_height":'..height..',"hide_url":true,"reply_markup":{"inline_keyboard":[[{"text":"Webseite aufrufen","url":"'..preview_url..'"}]]},"input_message_content":{"message_text":"'..message_text..'","parse_mode":"HTML","disable_web_page_preview":true}}]'
utilities.answer_inline_query(inline_query, results, data.cache_age)
end
function preview:action(msg)
local input = utilities.input_from_msg(msg)
if not input then
utilities.send_reply(msg, preview.doc, true)
return
end
input = utilities.get_word(input, 1)
if not input:match('^https?://.+') then
input = 'http://' .. input
end
local res = http.request(input)
if not res then
utilities.send_reply(msg, 'Bitte gebe einen validen Link an.')
return
end
if res:len() == 0 then
utilities.send_reply(msg, 'Sorry, dieser Link lässt uns keine Vorschau erstellen.')
return
end
-- Invisible zero-width, non-joiner.
local output = '<a href="' .. input .. '">' .. utilities.char.zwnj .. '</a>'
utilities.send_message(msg.chat.id, output, false, nil, 'HTML')
end
return preview