In network development, an IP proxy server is an important tool that can be used to hide the user's real IP address, improve network security, and implement multi-account management. As a simple and easy-to-use programming language, Easy Language is suitable for beginners and developers to create their own IP proxy server. This article will introduce in detail how to use Easy Language to make an IP proxy server.
1. What is an IP proxy server?
An IP proxy server is an intermediate server through which users access the Internet. The proxy server receives the user's request and forwards it to the target server, and then returns the target server's response to the user. Common types of proxy servers include:
- HTTP proxy: used to process HTTP requests, suitable for web browsing.
- SOCKS proxy: supports multiple protocols and is suitable for various network applications.
- Transparent proxy: does not modify user requests, mainly used for caching and filtering.
2. Basic concepts of Easy Language
1. Introduction to Easy Language
Easy Language is a Chinese programming language that is simple and easy to learn and suitable for beginners. It provides a wealth of libraries and functions to facilitate the development of various applications, including network applications.
2. Easy Language's Network Programming Capabilities
Easy Language supports a variety of network programming functions, including TCP/IP communication, HTTP request processing, etc. This makes it very suitable for developing IP proxy servers.
3. Preparation for making an IP proxy server
Before you start, you need to make the following preparations:
1. Install Easy Language: Make sure that the Easy Language development environment is installed on your computer.
2. Understand the basics of network programming: Master the basic concepts of TCP/IP protocol to better understand how proxy servers work.
3. Choose a suitable programming library: Easy Language provides a variety of network programming libraries, such as `Network Library`, which can be used to process network requests.
4. Write IP proxy server code
Here is a simple Easy Language IP proxy server example code that demonstrates how to create a basic HTTP proxy server.
1. Create a new project
1. Open the Easy Language development environment.
2. Create a new project and select "Console Program".
2. Introduce the network library
Introduce the network library in the project to use network-related functions. Add the following content to the code:
```e
.Version 2
.Support Library Network Library
```
3. Write the proxy server code
Here is a simple HTTP proxy server code example:
```e
.Local variable proxy port, integer type
.Local variable listener, network.listener
.Local variable request data, text type
.Local variable response data, text type
.Local variable client, network.connection
Proxy port = 8080 // Set the proxy server port
Listener.Create (proxy port) // Create a listener
Output ("Proxy server started, listening port: " + to text (proxy port))
.Loop
Client = Listener.Accept() // Accept client connection
Output ("Client connection: " + client.Address())
// Read client request
Request data = client.Receive data()
Output ("Received request: " + request data)
// Parse the request and get the target address
.Local variable target address, text type
Target address = parse request (request data)
// Send request to target server
Response data = send request to target server (target address, request data)
// Return response to client
Client.send data (response data)
Client.close() // Close client connection
.End of loop
```
4. Implementation of parsing request and sending request
In order to make the above code complete, we also need to implement the functions of `parse request` and `send request to target server`.
Parse request
```e
.Subroutine Parse request, text type, text type Request data
.Local variable Target address, text type
//Simply parse HTTP request and get target address
Target address = Request data.Get substring(Request data.Find(" ", 1) + 1, Request data.Find(" ", Request data.Find(" ", 1) + 1) - Request data.Find(" ", 1) - 1)
Return Target address
```
Send request to target server
```e
.Subroutine Send request to target server, text type, text type Target address, text type Request data
.Local variable Target connection, network.Connection
.Local variable Response data, text type
//Create a connection with the target server
Target connection.Create(Target address, 80) //The default HTTP port is 80
Target connection.send data (request data) // send request
Response data = target connection.receive data() // receive response
Target connection.close() // close connection
return response data
```
5. Run the proxy server
After completing the code writing, you can run the program in the Easy Language development environment. After the proxy server is started, you can use the proxy server for network access by configuring the proxy settings of the browser or other applications.
1. Configure the browser proxy
Take Chrome browser as an example, the steps to configure the proxy are as follows:
1. Open the Chrome browser and go to "Settings".
2. Find "System" in "Advanced" and click "Open the computer's proxy settings".
3. In "LAN Settings", check "Use a proxy server for LAN" and enter `127.0.0.1` and port `8080`.
4. Save the settings and restart the browser.
2. Test the proxy server
Visit any website in the browser to check whether it can be accessed normally through the proxy server. If everything is OK, you will see the output information of the proxy server.
6. Notes
When making and using an IP proxy server, you need to pay attention to the following points:
- Security: Ensure the security of the proxy server to avoid being exploited by malicious users.
- Performance: Adjust the server performance according to the network load to ensure stability.
- Legality: Follow relevant laws and regulations to ensure the legality of using the proxy server.
Making an IP proxy server with Easy Language is an interesting and practical project. This article details how to use Easy Language to write a simple HTTP proxy server code, and provides configuration and testing steps. I hope this guide can help you successfully make and use your own IP proxy server and improve the flexibility and security of network use.
