PD for chapter 11

chapter11/tcpproxy/Cargo.lock

@@ -0,0 +1,5 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+[[package]]
+name = "tcpproxy"
+version = "0.1.0"

chapter11/tcpproxy/Cargo.toml

@@ -0,0 +1,9 @@
+[package]
+name = "tcpproxy"
+version = "0.1.0"
+authors = ["peshwar9"]
+edition = "2018"
+
+
+[dependencies]
+

chapter11/tcpproxy/src/bin/origin.rs

@@ -0,0 +1,125 @@
+use std::io::{Read, Write};
+use std::net::TcpListener;
+use std::net::{IpAddr, Ipv4Addr, SocketAddr};
+use std::str;
+use std::str::FromStr;
+use std::string::ParseError;
+
+#[derive(Debug)]
+struct RequestLine {
+    method: Option<String>,
+    path: Option<String>,
+    protocol: Option<String>,
+}
+
+impl RequestLine {
+    fn method(&self) -> String {
+        if let Some(method) = &self.method {
+            method.to_string()
+        } else {
+            String::from("")
+        }
+    }
+    fn path(&self) -> String {
+        if let Some(path) = &self.path {
+            path.to_string()
+        } else {
+            String::from("")
+        }
+    }
+    fn get_order_number(&self) -> String {
+        let path = self.path();
+        let path_tokens: Vec<String> = path.split("/").map(|s| s.parse().unwrap()).collect();
+        path_tokens[path_tokens.len() - 1].clone()
+    }
+}
+
+impl FromStr for RequestLine {
+    type Err = ParseError;
+    fn from_str(msg: &str) -> Result<Self, Self::Err> {
+        let mut msg_tokens = msg.split_ascii_whitespace();
+
+        let method = match msg_tokens.next() {
+            Some(token) => Some(String::from(token)),
+            None => None,
+        };
+        let path = match msg_tokens.next() {
+            Some(token) => Some(String::from(token)),
+            None => None,
+        };
+        let protocol = match msg_tokens.next() {
+            Some(token) => Some(String::from(token)),
+            None => None,
+        };
+
+        Ok(Self {
+            method: method,
+            path: path,
+            protocol: protocol,
+        })
+    }
+}
+fn main() {
+    // Start the origin server
+    let port = 3000;
+    let socket_addr = SocketAddr::new(IpAddr::V4(Ipv4Addr::new(127, 0, 0, 1)), port);
+    let connection_listener = TcpListener::bind(socket_addr).unwrap();
+
+    println!("Running on port: {}", port);
+
+    for stream in connection_listener.incoming() {
+        // Read the first line of incoming HTTP request 
+        // and convert it into RequestLine struct
+        let mut stream = stream.unwrap();
+        let mut buffer = [0; 200];
+        stream.read(&mut buffer).unwrap();
+        let req_line = "";
+        let string_request_line =
+            if let Some(line) = str::from_utf8(&buffer).unwrap().lines().next() {
+                line
+            } else {
+                println!("Invalid request line received");
+                req_line
+            };
+
+        let req_line = RequestLine::from_str(string_request_line).unwrap();
+
+        // Construct the HTTP response string and write it to the TCP stream
+        let html_response_string;
+        let order_status;
+        println!("len is {}", req_line.get_order_number().len());
+
+        if req_line.method() != "GET"
+            || !req_line.path().starts_with("/order/status")
+            || req_line.get_order_number().len() == 0
+        {
+            if req_line.get_order_number().len() == 0 {
+                order_status = format!("Please provide valid order number");
+            } else {
+                order_status = format!("Sorry,this page is not found");
+            }
+
+            html_response_string = format!(
+                "HTTP/1.1 404 Not Found\nContent-Type: text/html\nContent-Length:{}\n\n{}",
+                order_status.len(),
+                order_status
+            );
+        } else {
+            order_status = format!(
+                "Order status for order number {} is: Shipped\n",
+                req_line.get_order_number()
+            );
+            html_response_string = format!(
+                "HTTP/1.1 200 OK\nContent-Type: text/html\nContent-Length:{}\n\n{}",
+                order_status.len(),
+                order_status
+            );
+        }
+
+        println!(
+            "\nGoing to respond to client with:\n\n{}",
+            html_response_string
+        );
+        stream.write(html_response_string.as_bytes()).unwrap();
+    }
+}

chapter11/tcpproxy/src/bin/proxy.rs

@@ -0,0 +1,77 @@
+use std::env;
+use std::io::{Read, Write};
+use std::net::{TcpListener, TcpStream};
+use std::process::exit;
+use std::thread;
+
+fn main() {
+    // Accept commandline parameters for proxy_stream and origin_stream
+    let args: Vec<_> = env::args().collect();
+    if args.len() < 3 {
+        eprintln!("Please provide proxy-from and proxy-to addresses");
+        exit(0);
+    }
+    let proxy_server = &args[1];
+    let origin_server = &args[2];
+
+    // Start a socket server on proxy_stream
+    let proxy_listener;
+    if let Ok(proxy) = TcpListener::bind(proxy_server) {
+        proxy_listener = proxy;
+        let addr = proxy_listener.local_addr().unwrap().ip();
+        let port = proxy_listener.local_addr().unwrap().port();
+        if let Err(_err) = TcpStream::connect(origin_server) {
+            println!("Please re-start the origin server");
+            exit(0);
+        }
+
+        println!("Running on Addr:{}, Port:{}\n", addr, port);
+    } else {
+        eprintln!("Unable to bind to specified proxy port");
+        exit(0);
+    }
+
+    let mut thread_handles = Vec::new();
+
+    // Listen for incoming connections from proxy_server and read byte stream
+    for proxy_stream in proxy_listener.incoming() {
+        let mut proxy_stream = proxy_stream.expect("Error in incoming TCP connection");
+        // Establish a new TCP connection to origin_stream
+        let mut origin_stream =
+            TcpStream::connect(origin_server).expect("Please re-start the origin server");
+        let handle =
+            thread::spawn(move || handle_connection(&mut proxy_stream, &mut origin_stream));
+        thread_handles.push(handle);
+    }
+    for handle in thread_handles {
+        handle.join().expect("Unable to join child thread");
+    }
+}
+
+fn handle_connection(proxy_stream: &mut TcpStream, origin_stream: &mut TcpStream) {
+    let mut in_buffer: Vec<u8> = vec![0; 200];
+    let mut out_buffer: Vec<u8> = vec![0; 200];
+
+    // Read incoming request to proxy_stream
+    if let Err(err) = proxy_stream.read(&mut in_buffer) {
+        println!("Error in reading from incoming proxy stream: {}", err);
+    } else {
+        println!(
+            "1: Incoming client request: {}",
+            String::from_utf8_lossy(&in_buffer)
+        );
+    }
+
+    // Write the byte stream to origin_stream
+    let _ = origin_stream.write(&mut in_buffer).unwrap();
+    println!("2: Forwarding request to origin server\n");
+    // Read response from the backend server
+    let _ = origin_stream.read(&mut out_buffer).unwrap();
+    println!(
+        "3: Received response from origin server: {}",
+        String::from_utf8_lossy(&out_buffer)
+    );
+    // Write response back to the proxy client
+    let _ = proxy_stream.write(&mut out_buffer).unwrap();
+    println!("4: Forwarding response back to client");
+}

chapter11/tcpproxy/src/main.rs

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+fn main() {
+    println!("Hello");
+}

chapter11/tcpproxy/target/.rustc_info.json

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chapter11/tcpproxy/target/rls/.rustc_info.json

@@ -0,0 +1 @@
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chapter11/tcpproxy/target/rls/debug/.fingerprint/tcpproxy-07fe34c963205a5d/bin-origin-07fe34c963205a5d

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chapter11/tcpproxy/target/rls/debug/.fingerprint/tcpproxy-07fe34c963205a5d/invoked.timestamp

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chapter11/tcpproxy/target/rls/debug/.fingerprint/tcpproxy-5c775a8d016ab106/test-bin-origin-5c775a8d016ab106

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chapter11/tcpproxy/target/rls/debug/.fingerprint/tcpproxy-bc5b79807d74c314/invoked.timestamp

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chapter11/tcpproxy/target/rls/debug/.fingerprint/tcpproxy-bc5b79807d74c314/test-bin-tcpproxy-bc5b79807d74c314

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chapter11/tcpproxy/target/rls/debug/.fingerprint/tcpproxy-e2b40a5fbef4cfc6/invoked.timestamp

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chapter11/tcpproxy/target/rls/debug/.fingerprint/tcpproxy-e2b40a5fbef4cfc6/test-bin-proxy-e2b40a5fbef4cfc6

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chapter11/tcpproxy/target/rls/debug/.fingerprint/tcpproxy-f38f9f2c2cdd137a/bin-proxy-f38f9f2c2cdd137a

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chapter11/tcpproxy/target/rls/debug/.fingerprint/tcpproxy-f38f9f2c2cdd137a/invoked.timestamp

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chapter11/tcpproxy/target/rls/debug/.fingerprint/tcpproxy-f6c45a41f08d6bd4/bin-tcpproxy-f6c45a41f08d6bd4.json

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chapter11/tcpproxy/target/rls/debug/.fingerprint/tcpproxy-f6c45a41f08d6bd4/invoked.timestamp

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chapter11/tcpproxy/target/rls/debug/deps/origin-07fe34c963205a5d.d

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chapter11/tcpproxy/target/rls/debug/deps/origin-5c775a8d016ab106.d

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chapter11/tcpproxy/target/rls/debug/deps/proxy-e2b40a5fbef4cfc6.d

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chapter11/tcpproxy/target/rls/debug/deps/proxy-f38f9f2c2cdd137a.d

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chapter11/tcpproxy/target/rls/debug/deps/save-analysis/tcpproxy-f6c45a41f08d6bd4.json

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chapter11/tcpproxy/target/rls/debug/deps/tcpproxy-f6c45a41f08d6bd4.d

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+/Users/prabhueshwarla/rust/author/packt/prod/chapter11/tcpproxy/target/rls/debug/deps/tcpproxy-f6c45a41f08d6bd4.rmeta: src/main.rs
+
+/Users/prabhueshwarla/rust/author/packt/prod/chapter11/tcpproxy/target/rls/debug/deps/tcpproxy-f6c45a41f08d6bd4.d: src/main.rs
+
+src/main.rs:

chapter11/tcpudp/Cargo.lock

@@ -0,0 +1,5 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+[[package]]
+name = "tcpudp"
+version = "0.1.0"

chapter11/tcpudp/Cargo.toml

@@ -0,0 +1,8 @@
+[package]
+name = "tcpudp"
+version = "0.1.0"
+authors = ["peshwar9"]
+edition = "2018"
+
+
+[dependencies]

chapter11/tcpudp/src/bin/tcp-client.rs

@@ -0,0 +1,11 @@
+use std::io::{Read, Write};
+use std::net::TcpStream;
+use std::str;
+fn main() {
+    let mut stream = TcpStream::connect("localhost:3000").unwrap();
+    let msg_to_send = "Hello from TCP client";
+    stream.write(msg_to_send.as_bytes()).unwrap();
+    let mut buffer = [0; 200];
+    stream.read(&mut buffer).unwrap();
+    println!("Got echo back from server:{:?}", str::from_utf8(&buffer));
+}

chapter11/tcpudp/src/bin/tcp-server.rs

@@ -0,0 +1,14 @@
+use std::io::{Read, Write};
+use std::net::TcpListener;
+fn main() {
+    let connection_listener = TcpListener::bind("127.0.0.1:3000").unwrap();
+    println!("Running on port 3000");
+    for stream in connection_listener.incoming() {
+        let mut stream = stream.unwrap();
+        println!("Connection established");
+        let mut buffer = [0; 100];
+        stream.read(&mut buffer).unwrap();
+        println!("Received from client {}", String::from_utf8_lossy(&buffer));
+        stream.write(&mut buffer).unwrap();
+    }
+}

chapter11/tcpudp/src/bin/udp-client.rs

@@ -0,0 +1,16 @@
+use std::net::UdpSocket;
+
+fn main() {
+    // Create a local UDP socket
+    let socket = UdpSocket::bind("0.0.0.0:0").expect("Unable to bind to socket");
+
+    // Connect the socket to a remote socket
+    socket
+        .connect("127.0.0.1:3000")
+        .expect("Could not connect to UDP server");
+    println!("socket peer addr is {:?}", socket.peer_addr());
+    // Send a datagram to the remote socket
+    socket
+        .send("Hello: sent using send() call".as_bytes())
+        .expect("Unable to send bytes");
+}

chapter11/tcpudp/src/bin/udp-server.rs

@@ -0,0 +1,30 @@
+use std::net::UdpSocket;
+use std::str;
+use std::thread;
+
+fn main() {
+    let socket = UdpSocket::bind("127.0.0.1:3000").expect("Unable to bind to port");
+    let mut buffer = [0; 1024];
+    loop {
+        let socket_new = socket.try_clone().expect("Unable to clone socket");
+        match socket_new.recv_from(&mut buffer) {
+            Ok((num_bytes, src_addr)) => {
+                thread::spawn(move || {
+                    let send_buffer = &mut buffer[..num_bytes];
+                    println!(
+                        "Received from client:{}",
+                        str::from_utf8(send_buffer).unwrap()
+                    );
+                    let response_string =
+                        format!("Received this: {}", String::from_utf8_lossy(send_buffer));
+                    socket_new
+                        .send_to(&response_string.as_bytes(), &src_addr)
+                        .expect("error in sending datagram to remote socket");
+                });
+            }
+            Err(err) => {
+                println!("Error in receiving datagrams over UDP: {}", err);
+            }
+        }
+    }
+}

chapter11/tcpudp/src/main.rs

@@ -0,0 +1,5 @@
+
+
+fn main() {
+
+}

chapter11/tcpudp/target/.rustc_info.json

@@ -0,0 +1 @@
+{"rustc_fingerprint":4503571881771466578,"outputs":{"7064757342655340577":["___\nlib___.rlib\nlib___.dylib\nlib___.dylib\nlib___.a\nlib___.dylib\n/Users/prabhueshwarla/.rustup/toolchains/stable-x86_64-apple-darwin\ndebug_assertions\nproc_macro\ntarget_arch=\"x86_64\"\ntarget_endian=\"little\"\ntarget_env=\"\"\ntarget_family=\"unix\"\ntarget_feature=\"fxsr\"\ntarget_feature=\"sse\"\ntarget_feature=\"sse2\"\ntarget_feature=\"sse3\"\ntarget_feature=\"ssse3\"\ntarget_os=\"macos\"\ntarget_pointer_width=\"64\"\ntarget_vendor=\"apple\"\nunix\n",""],"1164083562126845933":["rustc 1.43.0 (4fb7144ed 2020-04-20)\nbinary: rustc\ncommit-hash: 4fb7144ed159f94491249e86d5bbd033b5d60550\ncommit-date: 2020-04-20\nhost: x86_64-apple-darwin\nrelease: 1.43.0\nLLVM version: 9.0\n",""]},"successes":{}}

chapter11/tcpudp/target/rls/.rustc_info.json

@@ -0,0 +1 @@
+{"rustc_fingerprint":4503571881771466578,"outputs":{"1164083562126845933":["rustc 1.43.0 (4fb7144ed 2020-04-20)\nbinary: rustc\ncommit-hash: 4fb7144ed159f94491249e86d5bbd033b5d60550\ncommit-date: 2020-04-20\nhost: x86_64-apple-darwin\nrelease: 1.43.0\nLLVM version: 9.0\n",""],"4476964694761187371":["___\nlib___.rlib\nlib___.dylib\nlib___.dylib\nlib___.a\nlib___.dylib\n/Users/prabhueshwarla/.rustup/toolchains/stable-x86_64-apple-darwin\ndebug_assertions\nproc_macro\ntarget_arch=\"x86_64\"\ntarget_endian=\"little\"\ntarget_env=\"\"\ntarget_family=\"unix\"\ntarget_feature=\"fxsr\"\ntarget_feature=\"sse\"\ntarget_feature=\"sse2\"\ntarget_feature=\"sse3\"\ntarget_feature=\"ssse3\"\ntarget_os=\"macos\"\ntarget_pointer_width=\"64\"\ntarget_vendor=\"apple\"\nunix\n",""]},"successes":{}}

chapter11/tcpudp/target/rls/debug/.fingerprint/tcpudp-1018172d1283bb75/invoked.timestamp

@@ -0,0 +1 @@
+This file has an mtime of when this was started.

chapter11/tcpudp/target/rls/debug/.fingerprint/tcpudp-1018172d1283bb75/test-bin-tcpudp-1018172d1283bb75

@@ -0,0 +1 @@
+a32698b15cef2526

chapter11/tcpudp/target/rls/debug/.fingerprint/tcpudp-1018172d1283bb75/test-bin-tcpudp-1018172d1283bb75.json

@@ -0,0 +1 @@
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chapter11/tcpudp/target/rls/debug/.fingerprint/tcpudp-14afba0cad5e53ac/invoked.timestamp

@@ -0,0 +1 @@
+This file has an mtime of when this was started.

chapter11/tcpudp/target/rls/debug/.fingerprint/tcpudp-14afba0cad5e53ac/test-bin-tcp_server-14afba0cad5e53ac

@@ -0,0 +1 @@
+2070d3ed2311ab90

chapter11/tcpudp/target/rls/debug/.fingerprint/tcpudp-14afba0cad5e53ac/test-bin-tcp_server-14afba0cad5e53ac.json

@@ -0,0 +1 @@
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chapter11/tcpudp/target/rls/debug/.fingerprint/tcpudp-461e46e3a0bf0909/bin-tcp_server-461e46e3a0bf0909

@@ -0,0 +1 @@
+77bf183230e3f7b4

chapter11/tcpudp/target/rls/debug/.fingerprint/tcpudp-461e46e3a0bf0909/bin-tcp_server-461e46e3a0bf0909.json

@@ -0,0 +1 @@
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chapter11/tcpudp/target/rls/debug/.fingerprint/tcpudp-461e46e3a0bf0909/invoked.timestamp

@@ -0,0 +1 @@
+This file has an mtime of when this was started.

chapter11/tcpudp/target/rls/debug/.fingerprint/tcpudp-6e238a625ecea237/bin-udp_client-6e238a625ecea237

@@ -0,0 +1 @@
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chapter11/tcpudp/target/rls/debug/.fingerprint/tcpudp-6e238a625ecea237/bin-udp_client-6e238a625ecea237.json

@@ -0,0 +1 @@
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