Detect and remove XSS (cross site scripting) attacks from text entered through normalization.

Cross site scripting (XSS) attacks are a form of threat that exploits vulnerabilities in Web applications to plunder user information. Using malicious scripts, attackers can attract different users through normally trusted Web pages and access any information recorded by the user in the browser, including cookie s and other sensitive information. Such attacks can occur as long as a Web program accepts unauthenticated user input and then uses it in its output.

It is important to take all necessary steps to protect users, especially for XSS attacks, because users may only know their use of your website, not malicious actors who threaten them. Then, this may damage the reputation of your website because users will associate any problems with users and may be reluctant to return them.

Through the following APIs, you can not only check and verify any input text, but also prevent XSS attacks by normalizing and deleting any detected attacks. The purpose of implementing these APIs is not only to protect your users, but also to protect the legitimacy and reputation of your business.

To use any of the following API s, you first need to Add a Jitpack reference to the repository in XML to install the SDK library using Maven:

<repositories>
 <repository>
 <id>jitpack.io</id>
 <url>https://jitpack.io</url>
 </repository>
</repositories>

Then we can add references to dependencies:

<dependencies>
<dependency>
 <groupId>com.github.Cloudmersive</groupId>
 <artifactId>Cloudmersive.APIClient.Java</artifactId>
 <version>v3.54</version>
</dependency>
</dependencies>

The first API will check whether any user oriented text input is subject to XSS attacks. This is useful for detecting threats before they occur. To run API, install SDK as described above, and then call the function:

// Import classes:
//import com.cloudmersive.client.invoker.ApiClient;
//import com.cloudmersive.client.invoker.ApiException;
//import com.cloudmersive.client.invoker.Configuration;
//import com.cloudmersive.client.invoker.auth.*;
//import com.cloudmersive.client.TextInputApi;

ApiClient defaultClient = Configuration.getDefaultApiClient();
// Configure API key authorization: Apikey
ApiKeyAuth Apikey = (ApiKeyAuth) defaultClient.getAuthentication("Apikey");
Apikey.setApiKey("YOUR API KEY");
// Uncomment the following line to set a prefix for the API key, e.g. "Token" (defaults to null)
//Apikey.setApiKeyPrefix("Token");
TextInputApi apiInstance = new TextInputApi();
String value = "value_example"; // String | User-facing text input.
try {
 XssProtectionResult result = apiInstance.textInputCheckXss(value);
 System.out.println(result);
} catch (ApiException e) {
 System.err.println("Exception when calling TextInputApi#textInputCheckXss");
 e.printStackTrace();
}

This will return the original input, the standardized result, whether the verification is successful and whether the input contains XSS attack. To ensure that this API works properly, you need to check that certain requirements are met:

The text string is entered correctly.
You have entered the API key. This information can be retrieved free of charge on the cloudmercive website, and the entire API library provides 800 calls per month.
The second API takes a step further by detecting and eliminating any XSS attacks in text input. This is done through normalization, which removes all duplicate or unrecognized scripts from the text string. After installing SDK, start running API, and then call the function:

// Import classes:
//import com.cloudmersive.client.invoker.ApiClient;
//import com.cloudmersive.client.invoker.ApiException;
//import com.cloudmersive.client.invoker.Configuration;
//import com.cloudmersive.client.invoker.auth.*;
//import com.cloudmersive.client.TextInputApi;
ApiClient defaultClient = Configuration.getDefaultApiClient();
// Configure API key authorization: Apikey
ApiKeyAuth Apikey = (ApiKeyAuth) defaultClient.getAuthentication("Apikey");
Apikey.setApiKey("YOUR API KEY");
// Uncomment the following line to set a prefix for the API key, e.g. "Token" (defaults to null
//Apikey.setApiKeyPrefix("Token");
TextInputApi apiInstance = new TextInputApi();
String value = "value_example"; // String | User-facing text input.
try {
 XssProtectionResult result = apiInstance.textInputProtectXss(value);
 System.out.println(result);
} catch (ApiException e) {
 System.err.println("Exception when calling TextInputApi#textInputProtectXss");
 e.printStackTrace();
}

This will return output similar to the previous API, but will remove all detected XSS attacks.

The final API performs the same functions as the first two examples, but can be used to batch check multiple inputs. The parameters of this API should be a list of text items entered in the order you like. Install the SDK library just like the previous two API, and then call the function:

// Import classes:
//import com.cloudmersive.client.invoker.ApiClient;
//import com.cloudmersive.client.invoker.ApiException;
//import com.cloudmersive.client.invoker.Configuration;
//import com.cloudmersive.client.invoker.auth.*;
//import com.cloudmersive.client.TextInputApi;
ApiClient defaultClient = Configuration.getDefaultApiClient();
// Configure API key authorization: Apikey
ApiKeyAuth Apikey = (ApiKeyAuth) defaultClient.getAuthentication("Apikey");
Apikey.setApiKey("YOUR API KEY");
// Uncomment the following line to set a prefix for the API key, e.g. "Token" (defaults to null)
//Apikey.setApiKeyPrefix("Token");
TextInputApi apiInstance = new TextInputApi();
XssProtectionBatchRequest value = new XssProtectionBatchRequest(); // XssProtectionBatchRequest | User-facing text input.
try {
 XssProtectionBatchResponse result = apiInstance.textInputCheckXssBatch(value);
 System.out.println(result);
} catch (ApiException e) {
 System.err.println("Exception when calling TextInputApi#textInputCheckXssBatch");
 e.printStackTrace();
}

This returns the same output combined with the first two API s and returns one result for each string in the order of input.

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