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Mikubot-2/otouto/plugins/qr.lua
Andreas Bielawski 16f4dd169d - Portierung folgender Plugins:
+ QR
+ Random
- Remind eingedeutscht, funktioniert gut so, warum also das Rad neu erfinden?
2016-06-19 22:39:47 +02:00

87 lines
1.8 KiB
Lua

local qr = {}
local http = require('socket.http')
local URL = require('socket.url')
local utilities = require('otouto.utilities')
function qr:init(config)
qr.triggers = {
'^/qr "(%w+)" "(%w+)" (.+)$',
"^/qr (.+)$"
}
qr.doc = [[*
]]..config.cmd_pat..[[qr* _<Text>_: Sendet QR-Code mit diesem Text
*]]..config.cmd_pat..[[qr* _"[Hintergrundfarbe]"_ _"[Datenfarbe]"_ _[Text]_
Farbe mit Text: red|green|blue|purple|black|white|gray
Farbe als HEX: ("a56729" ist braun)
oder Farbe als Dezimalwert: ("255-192-203" ist pink)]]
end
qr.command = 'qr <Text>'
function qr:get_hex(str)
local colors = {
red = "f00",
blue = "00f",
green = "0f0",
yellow = "ff0",
purple = "f0f",
white = "fff",
black = "000",
gray = "ccc"
}
for color, value in pairs(colors) do
if color == str then
return value
end
end
return str
end
function qr:qr(text, color, bgcolor)
local url = "http://api.qrserver.com/v1/create-qr-code/?"
.."size=600x600" --fixed size otherways it's low detailed
.."&data="..URL.escape(utilities.trim(text))
if color then
url = url.."&color="..qr:get_hex(color)
end
if bgcolor then
url = url.."&bgcolor="..qr:get_hex(bgcolor)
end
local response, code, headers = http.request(url)
if code ~= 200 then
return nil
end
if #response > 0 then
return url
end
return nil
end
function qr:action(msg, config, matches)
local text = matches[1]
local color
local back
if #matches > 1 then
text = matches[3]
color = matches[2]
back = matches[1]
end
local image_url = qr:qr(text, color, back)
if not image_url then utilities.send_reply(self, msg, config.errors.connection) return end
local file = download_to_file(image_url, 'qr.png')
utilities.send_photo(self, msg.chat.id, file, nil, msg.message_id)
end
return qr