new plugin qr_codes

This commit is contained in:
Akamaru 2015-05-27 18:56:46 +02:00
parent 4339269284
commit 1e77e4de80

104
plugins/qr_codes.lua Normal file
View File

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--[[
* qr plugin uses:
* - http://goqr.me/api/doc/create-qr-code/
* psykomantis
]]
function url_encode(str)
if (str) then
str = string.gsub (str, "\n", "\r\n")
str = string.gsub (str, "([^%w %-%_%.%~])",
function (c) return string.format ("%%%02X", string.byte(c)) end)
str = string.gsub (str, " ", "+")
end
return str
end
function get_hex(str)
if(string.match(str,"(red)") == "red") then
return "f00"
elseif(string.match(str,"(blue)") == "blue") then
return "00f"
elseif(string.match(str,"(green)") == "green") then
return "0f0"
elseif(string.match(str,"(yellow)") == "yellow") then
return "ff0"
elseif(string.match(str,"(purple)") == "purple") then
return "f0f"
elseif(string.match(str,"(white)") == "white") then
return "fff"
elseif(string.match(str,"(black)") == "black") then
return "000"
elseif(string.match(str,"(gray)") == "gray") then
return "ccc"
end
return str
end
do
local function qr(msg, query)
local receiver = get_receiver(msg)
local http = require("socket.http")
local url = "http://api.qrserver.com/v1/create-qr-code/?" .. query .. "&size=600x600" --fixed size otherways it's low detailed
local response, code, headers = http.request(url)
if code ~= 200 then
return "Oops! Error: " .. code
end
if #response > 0 then
send_photo_from_url(receiver, url)
return
end
return "Oops! Something strange happened :("
end
local function run(msg, matches)
local query = ""
if(#matches == 3) then
local bgcolor = get_hex(matches[1])
local color = get_hex(matches[2])
local data = url_encode(matches[3]:trim())
query = "data=" .. data .. "&color=" .. color .. "&bgcolor=" .. bgcolor
return qr(msg, query)
end
query = "data=" .. url_encode(matches[1]:trim())
return qr(msg, query)
end
return {
description = {"qr code plugin for telegram, given a text it returns the qr code"},
usage = {
"/qr [text]",
'/qr "[background color]" "[data color]" [text]',
".......................................................",
"Color through text: red|green|blue|purple|black|white|gray",
"Or colors through hex notation: (\"a56729\" is brown)",
"Or colors through decimals: (\"255-192-203\" is pink)"
},
patterns = {
'^/qr "(.+)" "(.+)" (.+)$',
"^/qr (.+)$"
},
run = run
}
end