40 lines
1.2 KiB
Lua
40 lines
1.2 KiB
Lua
-- This plugin goes through every message with a document and if the document is an image,
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-- it downloads the file and resends it as image
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local post_photo = {}
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post_photo.triggers = {
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'/nil'
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}
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function post_photo:pre_process(msg, self, config)
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if not msg.document then return msg end -- Ignore
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local mime_type = msg.document.mime_type
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local valid_mimetypes = {['image/jpeg'] = true, ['image/png'] = true, ['image/bmp'] = true}
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if not valid_mimetypes[mime_type] then return msg end
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local file_id = msg.document.file_id
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local file_size = msg.document.file_size
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if file_size > 19922944 then
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print('File is over 20 MB - can\'t download :(')
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return
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end
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utilities.send_typing(self, msg.chat.id, 'upload_photo')
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-- Saving file to the Telegram Cloud
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local request = bindings.request(self, 'getFile', {
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file_id = file_id
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} )
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local download_url = 'https://api.telegram.org/file/bot'..config.bot_api_key..'/'..request.result.file_path
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local file = download_to_file(download_url, msg.file_name)
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utilities.send_photo(self, msg.chat.id, file, msg.caption, msg.message_id)
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return msg
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end
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function post_photo:action(msg)
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end
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return post_photo
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