Class: Plugins::PDFinfo
- Inherits:
-
Object
- Object
- Plugins::PDFinfo
- Includes:
- ActionView::Helpers::DateHelper, Cinch::Helpers, Cinch::Plugin
- Defined in:
- lib/Zeta/plugins/pdfinfo.rb
Constant Summary collapse
- DEFAULT_ALLOWED =
Default list of URL regexps to ignore.
[/\.pdf$/i].freeze
- FILE_SIZE_LIMIT =
4000000
Instance Method Summary collapse
Methods included from Cinch::Plugin
Instance Method Details
#execute(msg, url) ⇒ Object
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# File 'lib/Zeta/plugins/pdfinfo.rb', line 26 def execute(msg, url) allowedlist = DEFAULT_ALLOWED.dup allowedlist.concat(config[:blacklist]) if config[:blacklist] return unless allowedlist.any? { |entry| url =~ entry } debug "URL matched: #{url}" # Grab header and check filesize # one line to make request head = Faraday.head url # example with headers file_size = head.headers['Content-Length'] humanize_size = Humanize::Byte.new(file_size.to_i).to_k.to_s.to_i.round(2) if file_size.to_i > FILE_SIZE_LIMIT return msg.reply("PDF → Unable to parse. file too big #{humanize_size}kb") end # Get file and parse metadata open(url, "rb") do |io| reader = PDF::Reader.new(io) creator = reader.info[:Creator] || 'Anon' producer = reader.info[:Producer] || 'Anon' creation = reader.info[:CreationDate] || 'now' modification = reader.info[:ModDate] || 'now' title = reader.info[:Title] || nil display = title ? title : "Title: None <> Creator: #{creator} <> Producer: #{producer} <> Creation: #{creation}" msg.reply "PDF (#{humanize_size}kb) → #{display}" end rescue => e error "#{e.class.name}: #{e.}" end |