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io.conekta.Requestor Maven / Gradle / Ivy
package io.conekta;
/**
*
* @author mauricio
*/
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
import java.security.KeyStore;
import java.security.cert.CertificateFactory;
import java.security.cert.X509Certificate;
import java.util.Iterator;
import javax.net.ssl.SSLContext;
import javax.net.ssl.TrustManagerFactory;
import org.apache.commons.codec.binary.Base64;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
public class Requestor {
public String apiKey;
protected HttpURLConnection connection;
public Requestor() {
this.apiKey = Conekta.apiKey;
}
public static String apiUrl(String url) {
if(url.contains(Conekta.apiBase)){
return url;
}
String apiBase = Conekta.apiBase;
return apiBase + url;
}
private void setHeaders() throws Error {
JSONObject userAgent = new JSONObject();
try {
userAgent.put("bindings_version", Conekta.VERSION);
userAgent.put("lang", "java");
userAgent.put("lang_version", System.getProperty("java.version"));
userAgent.put("publisher", "conekta");
// Set Headers
this.connection.setRequestProperty("Accept-Language", Conekta.locale);
this.connection.setRequestProperty("X-Conekta-Client-User-Agent", userAgent.toString());
this.connection.setRequestProperty("Accept", "application/vnd.conekta-v" + Conekta.apiVersion + "+json");
this.connection.setRequestProperty("Content-Type", " application/json");
this.connection.setRequestProperty("User-Agent", "Conekta/v1 JavaBindings/" + Conekta.VERSION);
this.connection.setRequestProperty("Accept", "application/vnd.conekta-v"+ Conekta.apiVersion +"+json");
} catch (Exception e) {
throw new Error(e.getMessage(), null, null, null, null);
}
String base64 = null;
if (Conekta.apiKey == null || Conekta.apiKey.isEmpty())
throw new AuthenticationError("api_key was not set!", null, null, null, null);
try {
byte[] apiKey = Conekta.apiKey.getBytes("UTF-8");
base64 = new String(Base64.encodeBase64(apiKey));
this.connection.setRequestProperty("Authorization", "Basic " + base64);
} catch (Exception e) {
throw new Error(e.getMessage(), null, null, null, null);
}
}
public Object request(String method, String url, JSONObject params) throws Error, ErrorList {
URL urlObj;
try {
InputStream is = getClass().getResourceAsStream("/ssl_data/ca_bundle.crt");
CertificateFactory cf = CertificateFactory.getInstance("X.509");
X509Certificate caCert = (X509Certificate) cf.generateCertificate(is);
TrustManagerFactory tmf = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
KeyStore ks = KeyStore.getInstance(KeyStore.getDefaultType());
ks.load(null); // You don't need the KeyStore instance to come from a file.
ks.setCertificateEntry("caCert", caCert);
tmf.init(ks);
SSLContext sslContext = SSLContext.getInstance("TLS");
sslContext.init(null, tmf.getTrustManagers(), null);
} catch (Exception e) {
System.out.println(e.toString());
}
try {
if (method.equals("GET") && params != null) {
url = url + '?' + Requestor.getQuery(params, null);
}
urlObj = new URL(Requestor.apiUrl(url));
connection = (HttpURLConnection) urlObj.openConnection();
connection.setReadTimeout(60000);
connection.setConnectTimeout(15000);
connection.setDoInput(true);
connection.setDoOutput(true);
connection.setRequestMethod(method);
this.setHeaders();
} catch (IOException e) {
throw new Error(e.getMessage(), null, null, null, null);
} catch (AuthenticationError e) {
throw new AuthenticationError(e.toString(), e.message_to_purchaser, null, null, null);
} catch (Error e) {
throw new Error(e.getMessage(), e.message_to_purchaser, null, null, null);
} catch (Exception e) {
throw new Error(e.getMessage(), null, null, null, null);
}
if (params != null && (method.equals("POST") || method.equals("PUT"))) {
OutputStream os = null;
try {
os = connection.getOutputStream();
} catch (Exception e) {
throw new NoConnectionError(null, null, null, null, null);
}
try {
BufferedWriter writer = new BufferedWriter(
new OutputStreamWriter(os, "UTF-8"));
String r = params.toString();
writer.write(r);
writer.flush();
writer.close();
os.close();
} catch (Exception e) {
throw new Error(e.getMessage(), null, null, null, null);
}
}
int responseCode;
try {
responseCode = connection.getResponseCode();
} catch (Exception e) {
throw new Error(e.getMessage(), null, null, null, null);
}
BufferedReader in;
if (responseCode != 200) {
in = new BufferedReader(
new InputStreamReader(connection.getErrorStream()));
} else {
try {
in = new BufferedReader(
new InputStreamReader(connection.getInputStream()));
} catch (Exception e) {
throw new Error(e.getMessage(), null, null, null, null);
}
}
String inputLine;
StringBuffer response = new StringBuffer();
Object object = null;
try {
while ((inputLine = in.readLine()) != null) {
response.append(inputLine);
}
switch (response.toString().charAt(0)) {
// {
case 123:
object = new JSONObject(response.toString());
break;
// [
case 91:
object = new JSONArray(response.toString());
break;
default:
throw new Error("invalid response: " + response.toString(), null, null, null, null);
// Other
}
in.close();
if (responseCode != 200) {
if(Conekta.apiVersion.equals("2.0.0")) {
ErrorList.errorHandle((JSONObject) object, responseCode);
} else {
Error.errorHandler((JSONObject) object, responseCode);
}
}
} catch (IOException e) {
throw new Error(e.getMessage(), null, null, null, null);
} catch (JSONException e) {
throw new Error(e.getMessage(), null, null, null, null);
} catch (Error e) {
throw e;
}catch (ErrorList e) {
throw e;
}
return object;
}
private static String getQuery(JSONObject jsonObject, String index) throws Exception {
StringBuilder result = new StringBuilder();
Iterator itr = jsonObject.keys();
Boolean first = true;
while (itr.hasNext()) {
if (first) {
first = false;
} else {
result.append("&");
}
String key = itr.next().toString();
Object value = jsonObject.get(key);
if (value instanceof JSONObject) {
if (index != null) {
key = index + "[" + key + "]";
}
result.append(Requestor.getQuery(((JSONObject) value), key));
} else if (value instanceof JSONArray) {
JSONArray array = ((JSONArray) value);
for (int i = 0; i < array.length(); i++) {
if (array.get(i) instanceof JSONObject) {
if (index != null && i == 0) {
key = index + "[" + key + "][]";
}
result.append(Requestor.getQuery(array.getJSONObject(i), key));
} else {
if (index != null) {
result.append(URLEncoder.encode(index + "[" + key + "]" + "[]", "UTF-8"));
} else {
result.append(URLEncoder.encode(key + "[]", "UTF-8"));
}
result.append("=");
result.append(URLEncoder.encode(array.getString(i), "UTF-8"));
}
result.append("&");
}
} else {
if (index != null) {
result.append(URLEncoder.encode(index + "[" + key + "]", "UTF-8"));
} else {
result.append(key);
}
result.append("=");
result.append(URLEncoder.encode(value.toString(), "UTF-8"));
}
}
return result.toString();
}
}
