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Widgets adapted to work without TPA credentials.
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‎README.md

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Original file line numberDiff line numberDiff line change
@@ -53,6 +53,8 @@ Micro payment widgets allow to dynamically get a HTML snippet pre-configured and
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- **Pay Object's Id:** `[mandatory]` any unique identifier in the context of the TPA distinguishing the object of the payment.
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- **Pay type:** `[optional]` any of Donate | Pay | Tip | Deposit.
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Be aware that micro payments could be optionally configured with your own application id and secret (`app_id`/`app_secret`). Configuring the micro payment with your application credentials allows you to charge a transaction fee for example.
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### IFrame Widget
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```java
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import com.xapo.tools.widgets.MicroPayment;

‎java-api/pom.xml

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@@ -5,7 +5,7 @@
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<groupId>com.xapo</groupId>
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<artifactId>java-api</artifactId>
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<version>0.1.0</version>
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<version>0.2.0</version>
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<packaging>jar</packaging>
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‎java-api/src/main/java/com/xapo/tools/widgets/MicroPayment.java

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@@ -7,146 +7,155 @@
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public class MicroPayment {
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private ServiceParameters serviceParameters;
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private String appID;
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private String appSecret;
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private JsonMarshaller jsonMarshaller = new JsonMarshaller();
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private MCrypt aesEncrypt = new MCrypt();
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/**
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* Constructor
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*
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* @param serviceURL
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* The service URL. e.g.
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* "http://dev.xapo.com:8089/pay_button/show"
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* @param appID
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* The ID of the application that uses this SDK
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* @param appSecret
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* the encryption secret key of the application that uses this
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* SDK
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*/
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public MicroPayment(String serviceURL, String appID, String appSecret) {
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this.appID = appID;
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this.appSecret = appSecret;
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this.serviceParameters = new ServiceParameters(serviceURL);
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}
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/**
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* Encrypts the data to be sent to the server
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*
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* @param data
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* the String to be encrypted
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* @return the encrypted data
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*/
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protected String encrypt(String data) {
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try {
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return aesEncrypt.encrypt(appSecret, data);
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} catch (Exception e) {
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throw new RuntimeException("Can't encrypt the data", e);
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}
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}
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/**
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* Build the URL based in the request data
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*
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* @param request
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* the request to be sent to the server
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* @return the URL to send the request data
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*/
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protected String buildWidgetUrl(MicroPaymentConfig request) {
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long timestamp = System.currentTimeMillis();
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String buttonRequestJson = jsonMarshaller.getJson(request, timestamp);
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String buttonRequestEnc = encrypt(buttonRequestJson);
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URI widgetUrl = null;
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String widgetStr = "";
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StringBuilder query = new StringBuilder();
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query.append("customization={\"button_text\":\"");
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query.append(request.getPayType());
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query.append("\"}");
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query.append("&");
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query.append("app_id=");
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query.append(appID);
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query.append("&");
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query.append("button_request=");
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buttonRequestEnc = buttonRequestEnc.replace("=", "%3D");
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query.append(buttonRequestEnc);
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String queryStr = query.toString();
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queryStr = queryStr.replace("/", "%2F");
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queryStr = queryStr.replace("\"", "%22");
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queryStr = queryStr.replace("{", "%7B");
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queryStr = queryStr.replace("}", "%7D");
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queryStr = queryStr.replace(" ", "%20");
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queryStr = queryStr.replace("+", "%2B");
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queryStr = queryStr.replace(":", "%3A");
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queryStr = queryStr.replace("\n", "%0A");
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widgetStr = serviceParameters.getScheme() + "://" +
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serviceParameters.getHost() + ":" + serviceParameters.getPort() +
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serviceParameters.getPath() + "?" + queryStr;
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// fix : encode
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return widgetStr;
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}
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protected URI createURI(String query) {
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try {
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return new URI(serviceParameters.getScheme(), null /*userInfo*/,
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serviceParameters.getHost(), serviceParameters.getPort(), serviceParameters.getPath(), query, null /* fragment */);
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} catch (Exception e) {
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throw new RuntimeException("Can't create URL", e);
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}
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}
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/**
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* Builds a Div HTML tag including the request data
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*
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* @param microPaymentConfig
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* the data to sent to the server
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* @return the HTML tag string
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*/
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public String buildDivWidget(MicroPaymentConfig microPaymentConfig) {
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String widgetUrl = buildWidgetUrl(microPaymentConfig);
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StringBuffer res = new StringBuffer();
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res.append("<div id='tipButtonDiv' class='tipButtonDiv'></div>\n");
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res.append("<div id='tipButtonPopup' class='tipButtonPopup'></div>\n");
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res.append("<script>\n");
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res.append("$(document).ready(function() {");
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res.append("$('#tipButtonDiv').load('");
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res.append(widgetUrl);
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res.append("');");
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res.append("});\n");
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res.append("</script>");
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return res.toString();
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}
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/**
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* Builds an iFrame HTML tag including the request data
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*
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* @param microPaymentConfig
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* the data to configure de payment button
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* @return the HTML tag string
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*/
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public String buildIframeWidget(MicroPaymentConfig microPaymentConfig) {
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String widgetUrl = buildWidgetUrl(microPaymentConfig);
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StringBuffer res = new StringBuffer();
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res.append("<iframe id='tipButtonFrame' scrolling='no' frameborder='0' style='border:none; overflow:hidden; height:22px;' allowTransparency='true' src='");
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res.append(widgetUrl);
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res.append("'></iframe>");
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return res.toString();
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}
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private ServiceParameters serviceParameters;
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private String appID;
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private String appSecret;
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private JsonMarshaller jsonMarshaller = new JsonMarshaller();
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private MCrypt aesEncrypt = new MCrypt();
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/**
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* Constructor. Configure a payment button widget with TPA credentials.
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*
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* @param serviceURL The service URL. e.g.
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* "http://dev.xapo.com:8089/pay_button/show"
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* @param appID The ID of the application that uses this SDK
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* @param appSecret the encryption secret key of the application that uses this
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* SDK
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*/
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public MicroPayment(String serviceURL, String appID, String appSecret) {
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this.appID = appID;
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this.appSecret = appSecret;
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this.serviceParameters = new ServiceParameters(serviceURL);
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}
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/**
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* Constructor. Configure a payment button without a TPA.
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*
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* @param serviceURL The service URL. e.g.
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* "http://dev.xapo.com:8089/pay_button/show"
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*/
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public MicroPayment(String serviceURL) {
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this.serviceParameters = new ServiceParameters(serviceURL);
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}
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/**
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* Encrypts the data to be sent to the server
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*
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* @param data the String to be encrypted
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* @return the encrypted data
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*/
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protected String encrypt(String data) {
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try {
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return aesEncrypt.encrypt(appSecret, data);
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} catch (Exception e) {
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throw new RuntimeException("Can't encrypt the data", e);
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}
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}
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/**
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* Build the URL based in the request data
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*
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* @param request the request to be sent to the server
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* @return the URL to send the request data
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*/
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protected String buildWidgetUrl(MicroPaymentConfig request) {
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long timestamp = System.currentTimeMillis();
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String buttonRequestJson = jsonMarshaller.getJson(request, timestamp);
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URI widgetUrl = null;
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String widgetStr = "";
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StringBuilder query = new StringBuilder();
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query.append("customization={\"button_text\":\"");
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query.append(request.getPayType());
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query.append("\"}");
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if (this.appID == null || this.appSecret == null) {
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query.append("&");
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query.append("payload=");
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query.append(buttonRequestJson);
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} else {
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String buttonRequestEnc = encrypt(buttonRequestJson);
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query.append("&");
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query.append("app_id=");
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query.append(appID);
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query.append("&");
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query.append("button_request=");
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buttonRequestEnc = buttonRequestEnc.replace("=", "%3D");
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query.append(buttonRequestEnc);
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}
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String queryStr = query.toString();
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queryStr = queryStr.replace("/", "%2F");
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queryStr = queryStr.replace("\"", "%22");
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queryStr = queryStr.replace("{", "%7B");
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queryStr = queryStr.replace("}", "%7D");
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queryStr = queryStr.replace(" ", "%20");
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queryStr = queryStr.replace("+", "%2B");
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queryStr = queryStr.replace(":", "%3A");
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queryStr = queryStr.replace("\n", "%0A");
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widgetStr = serviceParameters.getScheme() + "://" +
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serviceParameters.getHost() + ":" + serviceParameters.getPort() +
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serviceParameters.getPath() + "?" + queryStr;
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// fix : encode
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return widgetStr;
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}
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protected URI createURI(String query) {
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try {
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return new URI(serviceParameters.getScheme(), null /*userInfo*/,
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serviceParameters.getHost(), serviceParameters.getPort(), serviceParameters.getPath(), query, null /* fragment */);
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} catch (Exception e) {
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throw new RuntimeException("Can't create URL", e);
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}
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}
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/**
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* Builds a Div HTML tag including the request data
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*
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* @param microPaymentConfig the data to sent to the server
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* @return the HTML tag string
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*/
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public String buildDivWidget(MicroPaymentConfig microPaymentConfig) {
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String widgetUrl = buildWidgetUrl(microPaymentConfig);
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StringBuffer res = new StringBuffer();
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res.append("<div id='tipButtonDiv' class='tipButtonDiv'></div>\n");
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res.append("<div id='tipButtonPopup' class='tipButtonPopup'></div>\n");
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res.append("<script>\n");
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res.append("$(document).ready(function() {");
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res.append("$('#tipButtonDiv').load('");
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res.append(widgetUrl);
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res.append("');");
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res.append("});\n");
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res.append("</script>");
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return res.toString();
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}
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/**
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* Builds an iFrame HTML tag including the request data
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*
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* @param microPaymentConfig the data to configure de payment button
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* @return the HTML tag string
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*/
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public String buildIframeWidget(MicroPaymentConfig microPaymentConfig) {
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String widgetUrl = buildWidgetUrl(microPaymentConfig);
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StringBuffer res = new StringBuffer();
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res.append("<iframe id='tipButtonFrame' scrolling='no' frameborder='0' style='border:none; overflow:hidden; height:22px;' allowTransparency='true' src='");
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res.append(widgetUrl);
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res.append("'></iframe>");
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return res.toString();
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}
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}

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