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Mikubot/plugins/img_google.lua

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-- This is a proprietary plugin, property of Andreas Bielawski, (c) 2015 <andi (dot) b (at) outlook (dot) de>
-- DO NOT USE WITHOUT PERMISSION
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do
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local _blacklist
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local function getGoogleImage(text)
local apikey = cred_data.google_apikey
local cseid = cred_data.google_cse_id
local url = 'https://www.googleapis.com/customsearch/v1?cx='..cseid..'&key='..apikey..'&searchType=image&num=10&fields=items(link)&safe=high&q='..URL.escape(text)
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local res, code = https.request(url)
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if code ~= 200 then return nil end
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local google = json:decode(res).items
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return google
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end
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local function cache_google_image(results, text)
local cache = {}
for v in pairs(results) do
table.insert(cache, results[v].link)
end
cache_data('img_google', string.lower(text), cache, 1209600, 'set')
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end
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function run(msg, matches)
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local receiver = get_receiver(msg)
local text = matches[1]
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print ('Checking if search contains blacklisted words: '..text)
if is_blacklisted(text) then
return "Vergiss es ._."
end
local hash = 'telegram:cache:img_google:'..string.lower(text)
local results = redis:smembers(hash)
if not results[1] then
print('doing web request')
results = getGoogleImage(text)
if results == 'QUOTAEXCEEDED' then
return 'Kontingent für heute erreicht - nur noch gecachte Suchanfragen möglich (oder /imgbing <Suchbegriff>).'
end
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if not results then
return "Kein Bild gefunden!"
end
cache_google_image(results, text)
end
-- Random image from table
local i = math.random(#results)
local url = nil
local failed = true
local nofTries = 0
while failed and nofTries < #results do
if not results[i].link then
url = results[i]
else
url = results[i].link
end
print("Bilder-URL: ", url)
if string.ends(url, ".gif") then
failed = not send_document_from_url(receiver, url, nil, nil, true)
elseif string.ends(url, ".jpg") or string.ends(url, ".jpeg") or string.ends(url, ".png") then
failed = not send_photo_from_url(receiver, url, nil, nil, true)
end
nofTries = nofTries + 1
i = i+1
if i > #results then
i = 1
end
end
if failed then
return "Fehler beim Herunterladen eines Bildes."
end
return 'Source: '..url
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end
return {
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description = "Sucht Bild mit Google-API und versendet es (SafeSearch aktiv)",
usage = {
"#img [Suchbegriff]"
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},
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patterns = {
"^#img (.*)$"
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},
run = run
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}
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end