Top Level Namespace

Defined Under Namespace

Modules: Jekyll

Instance Method Summary collapse

Instance Method Details

#getBool(val) ⇒ Object 



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# File 'lib/jekyllEWP.rb', line 156

def getBool(val)
    val.to_s.downcase == 'true'
end

#getButtonCmd(purpose) ⇒ Object

determines the button command from the string input. possible commands listed at developer.paypal.com/docs/classic/paypal-payments-standard/integration-guide/formbasics/#specifying-button-type–cmd



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# File 'lib/jekyllEWP.rb', line 135

def getButtonCmd(purpose)
     
    case purpose
    when "addtocart"
        return "_cart\nadd=1" #this is a dirty hack to insert the correct parameter for the cart buttons. better solutions welcome
    when "viewcart"
        return "_cart\ndisplay=1" #this is a dirty hack to insert the correct parameter for the cart buttons. better solutions welcome
    when "buynow"
        return "_xclick"
    when "donate"
        return "_donations"
    when "autobilling"
        return "_xclick-auto-billing"
    when "paymentplan"
        return "_xclick-payment-plan"
    else
        return "_xclick"
    end

end

#getButtonEncryptionValue(data, privateKeyData, certData, payPalCertData, keyPass = nil) ⇒ Object 



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# File 'lib/jekyllEWP.rb', line 38

def getButtonEncryptionValue(data, privateKeyData, certData, payPalCertData, keyPass = nil)
    #puts data
    #get keys and certs

    #https://stackoverflow.com/a/11136771
    paypal_pub_cert = OpenSSL::X509::Certificate.new(payPalCertData.gsub('\n', "\n"))

    my_pub_cert = OpenSSL::X509::Certificate.new(certData.gsub('\n', "\n"))

    my_private_key = ''
    if keyPass
        #https://stackoverflow.com/a/862090S
        #https://docs.ruby-lang.org/en/2.1.0/OpenSSL/PKey/RSA.html#method-c-new
        my_private_key = OpenSSL::PKey::RSA.new(privateKeyData.gsub('\n', "\n"), keyPass)
    else
        my_private_key = OpenSSL::PKey::RSA.new(privateKeyData.gsub('\n', "\n")) 
    end
       


    #modified from http://railscasts.com/episodes/143-paypal-security
    #https://docs.ruby-lang.org/en/2.1.0/OpenSSL/PKCS7.html#method-c-sign
    signed = OpenSSL::PKCS7::sign(OpenSSL::X509::Certificate.new(my_pub_cert), my_private_key, data, [], OpenSSL::PKCS7::BINARY)
    
    OpenSSL::PKCS7::encrypt([OpenSSL::X509::Certificate.new(paypal_pub_cert)], signed.to_der, OpenSSL::Cipher.new("des-ede3-cbc"), OpenSSL::PKCS7::BINARY).to_s.gsub("\n", "")

    # puts signed.class
    return signed.to_pem()
        
end

#getButtonOptionsString(certID, cmd, paypal_business_email, item_name, item_price, item_number = "0000", currency_code = "USD", tax = nil, shipping = nil) ⇒ Object 



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# File 'lib/jekyllEWP.rb', line 70

def getButtonOptionsString(certID, cmd, paypal_business_email, item_name, item_price, item_number = "0000", currency_code = "USD", tax = nil, shipping = nil )
    options = ""

    options.concat("cert_id=" + certID + "\n")
    options.concat("cmd=" + cmd + "\n")

    # if cmd == "_cart"
        # case cart_options
        # when "add"
        # when "display"
        #     options.concat(cart_options + "=1\n")
        # when "upload"
        #     puts "unsupported value 'upload' used in paypal EWP plugin. the form probably isnt going to work"
        # end
    # end

    options.concat("business=" + paypal_business_email + "\n")
    options.concat("item_name=" + item_name + "\n")
    #options.concat("item_number=" + item_number + "\n")
    options.concat("amount=" + item_price + "\n")
    options.concat("currency_code=" + currency_code + "\n")
    


    unless tax.nil? || tax == "0"
        options.concat("tax=" + tax + "\n")
    end

    unless shipping.nil? || shipping == "0"
        options.concat("shipping=" + shipping + "\n")
    end



=begin
Below is the full list of supported key/vaue pairs from the paypal docs (https://developer.paypal.com/docs/classic/paypal-payments-standard/integration-guide/encryptedwebpayments/#id08A3I0PD04Y) the ones beginning with a hash (#) are not implemented here.

some of these are also passthrough variables that arent used by paypal: https://developer.paypal.com/docs/classic/paypal-payments-standard/integration-guide/formbasics/#variations-on-basic-variables


    cert_id=Z24MFU6DSHBXQ
    cmd=_xclick
    [email protected]
    item_name=Handheld Computer
    #item_number=1234
    #custom=sc-id-789
    amount=500.00
    currency_code=USD
    tax=41.25
    shipping=20.00
    #address_override=1
    #address1=123 Main St
    #city=Austin
    #state=TX
    #zip=94085
    #country=USA
    #cancel_return=https://example.com/cancel
=end
    return options

end

#wrapInForm(encryptedValue, use_sandbox = false, separate_submit = false, button_image = "", identifier = "") ⇒ Object 



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# File 'lib/jekyllEWP.rb', line 5

def wrapInForm(encryptedValue, use_sandbox=false, separate_submit=false, button_image = "", identifier="")

    if identifier.nil?
        identifier = ""
    end

    if button_image.nil?
        button_image = ""
    end

    if getBool(use_sandbox) == true
        stage = "sandbox."
    else
        stage=""
    end

    unless getBool(separate_submit) == true
        submit = '<input type="image" src="' + button_image + '" border="0" name="submit" alt="Make payments with PayPal - it\'s fast, free and secure!">'
        id=''
    else
        submit = ""
        id=' id="' + identifier + '"'
    end


    return_str = '<form' + id +' action="https://www.' + stage + 'paypal.com/cgi-bin/webscr" method="post">' + '<input type="hidden" name="cmd" value="_s-xclick">' + submit + '<input type="hidden" name="encrypted" value="' + encryptedValue + '"></form>';

    return return_str

end