Class: Stevedore::StevedoreEmail

Inherits:
StevedoreBlob show all
Defined in:
lib/parsers/stevedore_email.rb

Instance Attribute Summary collapse

Attributes inherited from StevedoreBlob

#download_url, #extra, #text, #title

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from StevedoreBlob

#analyze!, #clean_text, #initialize

Constructor Details

This class inherits a constructor from Stevedore::StevedoreBlob

Instance Attribute Details

#attachments ⇒ Object

TODO write wrt other fields. where do those go???



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# File 'lib/parsers/stevedore_email.rb', line 13

def attachments
  @attachments
end

#content_type ⇒ Object

TODO write wrt other fields. where do those go???



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# File 'lib/parsers/stevedore_email.rb', line 13

def content_type
  @content_type
end

#creation_date ⇒ Object

TODO write wrt other fields. where do those go???



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# File 'lib/parsers/stevedore_email.rb', line 13

def creation_date
  @creation_date
end

#dkim_verified ⇒ Object

TODO write wrt other fields. where do those go???



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# File 'lib/parsers/stevedore_email.rb', line 13

def dkim_verified
  @dkim_verified
end

#message_cc ⇒ Object

TODO write wrt other fields. where do those go???



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# File 'lib/parsers/stevedore_email.rb', line 13

def message_cc
  @message_cc
end

#message_from ⇒ Object

TODO write wrt other fields. where do those go???



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# File 'lib/parsers/stevedore_email.rb', line 13

def message_from
  @message_from
end

#message_to ⇒ Object

TODO write wrt other fields. where do those go???



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# File 'lib/parsers/stevedore_email.rb', line 13

def message_to
  @message_to
end

#subject ⇒ Object

TODO write wrt other fields. where do those go???



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# File 'lib/parsers/stevedore_email.rb', line 13

def subject
  @subject
end

Class Method Details

.new_from_tika(content, metadata, download_url, filepath) ⇒ Object 



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# File 'lib/parsers/stevedore_email.rb', line 15

def self.new_from_tika(content, metadata, download_url, filepath)
  t = super
  t.creation_date = metadata["Creation-Date"]
  t.message_to = metadata["Message-To"]
  t.message_from = metadata["Message-From"]
  t.message_cc = metadata["Message-Cc"]
  t.title = t.subject = metadata["subject"]
  t.dkim_verified = begin 
                      Dkim::Verifier.new(filepath).verify!
                    rescue Dkim::DkimError
                      false
                    end
  t.attachments = metadata["X-Attachments"].to_s.split("|").map do |raw_attachment_filename| 
    attachment_filename = CGI::unescape(raw_attachment_filename)
    possible_filename = File.join(File.dirname(filepath), attachment_filename)
    eml_filename = File.join(File.dirname(filepath), File.basename(filepath, '.eml') + '-' + attachment_filename)
    possible_s3_url = S3_BASEPATH + '/' + CGI::escape(File.basename(possible_filename))
    possible_eml_s3_url = S3_BASEPATH + '/' + CGI::escape(File.basename(eml_filename))

    # we might be uploading from the disk in which case we see if we can find an attachment on disk with the name from X-Attachments
    # or we might be uploading via S3, in which case we see if an object exists, accessible on S3, with the path from X-Attachments
    # TODO: support private S3 buckets
    s3_url = if File.exists? possible_filename
                possible_s3_url
             elsif File.exists? eml_filename
                possible_eml_s3_url
             else
                nil
             end
    s3_url = begin
              if Manticore::Client.new.head(possible_s3_url).code == 200
                puts "found attachment: #{possible_s3_url}"
                possible_s3_url
              elsif Manticore::Client.new.head(possible_eml_s3_url).code == 200
                puts "found attachment: #{possible_eml_s3_url}"
                possible_eml_s3_url
              end
            rescue
              nil
            end if s3_url.nil?
    if s3_url.nil?
      STDERR.puts "Tika X-Attachments: " + metadata["X-Attachments"].to_s.inspect
      STDERR.puts "Couldn't find attachment '#{possible_s3_url}' aka '#{possible_eml_s3_url}' from '#{raw_attachment_filename}' from #{download_url}"
    end
    s3_url
  end.compact
  t
end

Instance Method Details

#to_hash ⇒ Object 



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# File 'lib/parsers/stevedore_email.rb', line 65

def to_hash
  {
    "sha1" => Digest::SHA1.hexdigest(download_url),
    "title" => title.to_s,
    "source_url" => download_url.to_s,
    "file" => {
      "title" => title.to_s,
      "file" => text.to_s
    },
    "analyzed" => {
      "body" => text.to_s,
      "metadata" => {
        "Content-Type" => content_type || "message/rfc822",
        "Creation-Date" => creation_date,
        "Message-To" => message_from.is_a?(Enumerable) ? message_from : [ message_from ],
        "Message-From" => message_to.is_a?(Enumerable) ? message_to : [ message_to ],
        "Message-Cc" => message_cc.is_a?(Enumerable) ? message_cc : [ message_cc ],
        "subject" => subject,
        "attachments" => attachments,
        "dkim_verified" => dkim_verified
      }
    },
    "_updatedAt" => Time.now
  }
end