Class: Stalkr::ChinaPost

Inherits:
Base
  • Object
show all
Defined in:
lib/stalkr/china_post.rb

Instance Method Summary collapse

Methods inherited from Base

#cleanup_html, extract_id, #fetchurl, is_valid?, #strip_tags

Instance Method Details

#track(id) ⇒ Object 



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# File 'lib/stalkr/china_post.rb', line 10

def track(id)

    url = "http://www.emsairmailtracking.com/chinapost.php"
    html = fetchurl(url, {"itemNo" => id})

    begin

        td_scraper = Scraper.define do
            array :tds
            process "td", :tds => :text
            result :tds
        end

        row_scraper = Scraper.define do
            array :rows
            process "tr", :rows => td_scraper
            result :rows
        end

        rows = row_scraper.scrape(html)

        if not rows or rows.size < 2 then
            raise "ChinaPost scraper failed"
        end

        ret = Result.new(:ChinaPost)

        # ["Item No.", "Year", "Status", "Location", "Destination Country", "Status", "Recipient's Signature"]
        # get rid of the header row
        rows.shift

        status = rows.first[2].strip.downcase
        if status =~ /delivered/ then
            ret.status = DELIVERED
        elsif status =~ /arrival|departure/ then
            ret.status = IN_TRANSIT
        else
            ret.status = UNKNOWN
        end

        updated_at = cleanup_html( rows.first[5] )
        ret.updated_at = DateTime.strptime( updated_at, "%Y-%m-%d" ).to_time

        if ret.status == DELIVERED then
            ret.delivered_at = ret.updated_at
        end

        return ret

    rescue Exception => ex
        raise Stalkr::Error.new(ex, html)

    end

end