Class: EC2QueryClient::Client

Inherits:
Object
  • Object
show all
Defined in:
lib/econe/EC2QueryClient.rb

Constant Summary collapse

API_VERSION = 
'2008-12-01'

Instance Method Summary collapse

Constructor Details

#initialize(secret = nil, endpoint = nil) ⇒ Client

Returns a new instance of Client.



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# File 'lib/econe/EC2QueryClient.rb', line 37

def initialize(secret=nil, endpoint=nil)
    # Autentication
    ec2auth=nil
    
    if secret
        ec2auth = secret.split(':')
    elsif ENV["ECONE_ACCESS_KEY"] and ENV["ECONE_SECRET_KEY"]
        ec2auth = [ENV["ECONE_ACCESS_KEY"], ENV["ECONE_SECRET_KEY"]]
    else
        ec2auth=CloudClient::get_one_auth
    end
   
    if !ec2auth
        raise "No authorization data present"
    end
    
    @access_key_id     = ec2auth[0]
    @access_key_secret = Digest::SHA1.hexdigest(ec2auth[1])
    
    # Server location
    
    if !endpoint
        if $ec2url
            endpoint = $ec2url
        else
            endpoint = "http://localhost:4567"
        end
    end
    
    @uri = URI.parse(endpoint)
 
    @ec2_connection = AWS::EC2::Base.new(
        :access_key_id     => @access_key_id,
        :secret_access_key => @access_key_secret,
        :server            => @uri.host,
        :port              => @uri.port,
        :use_ssl           => @uri.scheme == 'https')
end

Instance Method Details

#describe_images ⇒ Object

:image_id –> ALL :owner_id –> mine (ALWAYS) :executable_by –> Always Public (NO ACLS)



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# File 'lib/econe/EC2QueryClient.rb', line 208

def describe_images()
    begin
        response = @ec2_connection.describe_images
    rescue Exception => e
        error = CloudClient::Error.new(e.message)
        return error
    end
    
    return response
end

#describe_instances ⇒ Object 



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# File 'lib/econe/EC2QueryClient.rb', line 81

def describe_instances()
    begin
        response = @ec2_connection.describe_instances
    rescue Exception => e
        error = CloudClient::Error.new(e.message)
        return error
    end
    
    return response
end

#register_image(image_id) ⇒ Object 



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# File 'lib/econe/EC2QueryClient.rb', line 190

def register_image(image_id)
    begin
       response = @ec2_connection.register_image(
                    :image_location => image_id
                  )
    rescue Exception => e
        error = CloudClient::Error.new(e.message)
        return error
    end
    
    return response
end

#run_instances(ami_id, type) ⇒ Object

:image_id :instance_type



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# File 'lib/econe/EC2QueryClient.rb', line 96

def run_instances(ami_id, type)
    begin
        response = @ec2_connection.run_instances(
                        :image_id      => ami_id,
                        :min_count     => 1,
                        :max_count     => 1,
                        :instance_type => type
                   )            
    rescue Exception => e
        error = CloudClient::Error.new(e.message)
        return error
    end
    
    return response
end

#terminate_instances(instance_id) ⇒ Object 



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# File 'lib/econe/EC2QueryClient.rb', line 116

def terminate_instances(instance_id)
    begin
        response = @ec2_connection.terminate_instances(
            :instance_id   => instance_id
         )
    rescue Exception => e
        error = CloudClient::Error.new(e.message)
        return error
    end
    
    return response
end

#upload_image(file_name, curb = true) ⇒ Object

Returns true if HTTP code is 200,



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# File 'lib/econe/EC2QueryClient.rb', line 133

def upload_image(file_name, curb=true)
    params = { "Action"           => "UploadImage",
               "SignatureVersion" => "2",
               "SignatureMethod"  => 'HmacSHA1',
               "AWSAccessKeyId"   => @access_key_id,
               "Version"          => API_VERSION,
               "Timestamp"        => Time.now.getutc.iso8601 }

    str = AWS.canonical_string(params, @uri.host)
    sig = AWS.encode(@access_key_secret, str, false)
   
    post_fields = Array.new;

    if curb and CURL_LOADED
        params.each { |k,v|
            post_fields << Curl::PostField.content(k,v)
        }

        post_fields << Curl::PostField.content("Signature",sig)
        post_fields << Curl::PostField.file("file",file_name)

        connection = Curl::Easy.new(@uri.to_s)
        connection.multipart_form_post = true

        connection.http_post(*post_fields)

        if connection.response_code == 200
            return AWS::Response.parse(:xml => connection.body_str)
        else
            return CloudClient::Error.new(connection.body_str)
        end
    else
        params["Signature"]=sig

        file=File.open(file_name)
        params["file"]=UploadIO.new(file,
            'application/octet-stream', file_name)

        req = Net::HTTP::Post::Multipart.new('/', params)
        res = CloudClient.http_start(@uri) do |http|
            http.request(req)
        end

        file.close

        if res.code == '200'
            return AWS::Response.parse(:xml => res.body)
        else
            return CloudClient::Error.new(res.body)
        end
    end
end