Using Ruby to post articles to Blogger

I'm learning Ruby and so I think I may write some Ruby code to post articles to Blogger.  After studying the Google Blogger API, I wrap the API into Ruby functions:

Authentication

Posting article to Blogger requires authentication using HTTPS POST request:

# Login to Google
# @email - your google email address
# @passwd - your login password
# returns true if login successful, otherwise false
# @auth holds the returned authentication keys

def login
    h = Net::HTTP.new 'www.google.com', 443
    h.use_ssl = true
    resp, data = h.post '/accounts/ClientLogin',
                        "Email=#{@email}&Passwd=#{@passwd}&service=blogger",
                        { 'Content-Type' => 'application/x-www-form-urlencoded' }
    return false if resp.code != '200'
    # save the authentication keys
    @auth = {}
    data.each do |s|
        key, val = s.chomp.split('=')
        @auth[key] = val
    end
    true
end

Posting

After successfully authenticated, you can now post articles:

# Post an article to Blogger:
# title - title of the article
# body - content of the article
# labels - array of labels for the article, e.g. [ 'Ruby', 'Programming' ]
# @userid - your Blogger ID

def post title, body, labels
    headers = { 'Authorization' => "GoogleLogin auth=#{@auth['Auth']}",
                'Content-Type' => 'application/atom+xml' }
    data = "<?xml version='1.0'?>"
    data << "<entry xmlns='http://www.w3.org/2005/Atom'>"
    data << "<title type='text'>#{title}</title>"
    data << "<content type='xhtml'>#{body}</content>"
    labels.each do |lbl|
        data << "<category scheme='http://www.blogger.com/atom/ns#' term='#{lbl}'></category>"
    end
    data << "</entry>"
    h = Net::HTTP.new "#{@userid}.blogspot.com"
    resp, data = h.post '/feeds/posts/default', data, headers
end

This function is very primitive and doesn't handle HTML tags inside the
body that may cause problem, but it shows the possibility of posting
content using Ruby.