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Mikubot/plugins/url_title.lua

56 lines
1.4 KiB
Lua

do
function getTitle(page)
local s = page
-- Remove optional spaces from the tags.
s = string.gsub(s, "\n", " ")
s = string.gsub(s, " *< *", "<")
s = string.gsub(s, " *> *", ">")
-- Put all the tags in lowercase.
s = string.gsub(s, "(<[^ >]+)", string.lower)
local i, f, t = string.find(s, "<title>(.+)</title>")
return t or ""
end
function string.ends(str, fin)
return fin=='' or string.sub(str,-string.len(fin)) == fin
end
function run(msg, matches)
local url = matches[1]
if string.ends(url, ".jpg") or string.ends(url, ".gif") or string.ends(url, ".png") then
return
end
local result = http.request(url)
local title = getTitle(result)
--Ignoring 301, 302, 404 and more
if title == "301 Moved Permanently" or
title == "" or
title == "404 Not Found" or
title == "302 Found" or
title == "302 Moved" or
title == "Moved Permanently" or
title == "Redirection" or
title == "Object moved" or
string.match(title, "521: Web server is down") or
string.match(title, "deviantArt") or
string.match(title, "twitch") or
string.match(title, "eBay</title>") or
string.match(title, "Twitch") then
print('Invalide, da "'..title..'"')
else
return title
end
end
return {
description = "Postet URL-Titel",
usage = {"Irgendein Link"},
patterns = {"^(https?://[%w-_%.%?%.:,/%+=&]+)$",},
run = run
}
end