Basic Auth for WSO2 EI API service - basic-authentication

Question

I am using WSO2-EI 6.4.0. I have tried this development with link. It work for me. But I need to get user name and password from other back end service. In this example was showed the hard corded user and password. I have added that code for your reference. Please help me to get those user name and password from property file.
public boolean processSecurity(String credentials) {
String decodedCredentials = new String(new Base64().decode(credentials.getBytes()));
String usernName = decodedCredentials.split(":")[0];
String password = decodedCredentials.split(":")[1];
if ("admin".equals(username) && "admin".equals(password)) {
return true;
} else {
return false;
}
}
I have added WSO2 EI handler like following. I need to pass the value from back service or call other sequence and load.
<api context="/test">
<resource methods="POST">
<inSequence>
................
</inSequence>
<outSequence>
................
</outSequence>
</resource>
<handlers>
<handler class="rezg.ride.common.BasicAuthHandler">
<property name="cm_password" value="admin"/>
<property name="cm_userName" value="admin"/>
</handler>
</handlers>
</api>
When we run the above API, handlers are running first and then running in and out sequences. So I need to get user name and password calling Sequence or any other method before run this BasicAuthHandler.

Answer 1

If you need to read the property file from the class mediator it's just straight forward java property file reading. Please refer the following call sample of reading a property file. In this scenario, Just read the carbon.properties file exists in the conf directory.
public boolean mediate(MessageContext context) {
String passwordFileLocation = System.getProperty("conf.location")+"/carbon.properties";
try (FileInputStream input = new FileInputStream(passwordFileLocation)) {
Properties prop = new Properties();
// load a properties file
prop.load(input);
log.info("------org.wso2.CipherTransformation : " + prop.getProperty("org.wso2.CipherTransformation"));
} catch (IOException ex) {
ex.printStackTrace();
}
return true;
}
To get the server location and the conf locating, There are JAVA system properties are set at the time wso2 server starts. Following are some of the useful System system properties.
carbon.local.ip
carbon.home
conf.location