br_web_server/
client.rs

1use std::collections::HashMap;
2use rustls::{ClientConnection, StreamOwned};
3use std::net::{IpAddr, TcpStream};
4use std::{fs, thread};
5use std::io::{Read};
6use std::path::Path;
7use std::str::FromStr;
8use std::sync::Arc;
9use std::time::Duration;
10use json::{JsonValue};
11use log::{debug};
12use rand::distr::Alphanumeric;
13use rand::Rng;
14use rustls::RootCertStore;
15use crate::{Method, Protocol};
16use crate::client_response::ClientResponse;
17use crate::stream::ClientStream;
18use crate::url::Url;
19
20pub struct Client {
21    debug: bool,
22    url: String,
23    protocol: Protocol,
24    method: Method,
25    query: HashMap<String, String>,
26    headers: HashMap<String, JsonValue>,
27    cookies: HashMap<String, String>,
28    body: Vec<u8>,
29    read_timeout: u64,
30    write_timeout: u64,
31    auto_location: bool,
32    boundary: String,
33    /// 重试次数
34    retry: usize,
35    ca_pem: String,
36    pkcs12: String,
37    pkcs12_password: String,
38}
39impl Default for Client {
40    fn default() -> Self {
41        Self::new()
42    }
43}
44
45impl Client {
46    pub fn new() -> Self {
47        Self { debug: false, url: "".to_string(), protocol: Protocol::HTTP1_1, method: Method::Other("".to_string()), query: HashMap::new(), headers: Default::default(), cookies: Default::default(), body: vec![], read_timeout: 10, write_timeout: 10, auto_location: false, boundary: "".to_string(), retry: 0, ca_pem: "".to_string(), pkcs12: "".to_string(), pkcs12_password: "".to_string() }
48    }
49    /// 重置全部
50    pub fn reset(&mut self) -> &mut Self {
51        self.debug = false;
52        self.url = "".to_string();
53        self.protocol = Protocol::HTTP1_1;
54        self.method = Method::Other("".to_string());
55        self.query = HashMap::new();
56        self.headers = Default::default();
57        self.cookies = Default::default();
58        self.body = vec![];
59        self.read_timeout = 0;
60        self.write_timeout = 0;
61        self.auto_location = false;
62        self.boundary = "".to_string();
63        self.retry = 0;
64        self
65    }
66    pub fn debug(&mut self) -> &mut Self {
67        self.debug = true;
68        self
69    }
70    pub fn ca_pem(&mut self, ca_pem: &str) -> &mut Self {
71        self.ca_pem = ca_pem.to_string();
72        self
73    }
74    pub fn pkcs12(&mut self, pkcs12: &str, password: &str) -> &mut Self {
75        self.pkcs12 = pkcs12.to_string();
76        self.pkcs12_password = password.to_string();
77        self
78    }
79    pub fn http10(&mut self) -> &mut Self {
80        self.protocol = Protocol::HTTP1_0;
81        self
82    }
83    pub fn http11(&mut self) -> &mut Self {
84        self.protocol = Protocol::HTTP1_1;
85        self
86    }
87    pub fn http2(&mut self) -> &mut Self {
88        self.protocol = Protocol::HTTP2;
89        self
90    }
91    /// 设置重置
92    pub fn retry(&mut self, count: usize) -> &mut Self {
93        self.retry = count;
94        self
95    }
96    pub fn auto_location(&mut self) -> &mut Self {
97        self.auto_location = true;
98        self
99    }
100    fn generate_boundary(&mut self) -> String {
101        let rand: String = rand::rng().sample_iter(&Alphanumeric).take(16).map(char::from).collect();
102        format!("----WebKitFormBoundary{}", rand)
103    }
104    pub fn get(&mut self, url: &str) -> &mut Self {
105        self.url = url.to_string();
106        self.method = Method::GET;
107        self
108    }
109    pub fn post(&mut self, url: &str) -> &mut Self {
110        self.url = url.to_string();
111        self.method = Method::POST;
112        self
113    }
114    pub fn head(&mut self, url: &str) -> &mut Self {
115        self.url = url.to_string();
116        self.method = Method::HEAD;
117        self
118    }
119    pub fn delete(&mut self, url: &str) -> &mut Self {
120        self.url = url.to_string();
121        self.method = Method::DELETE;
122        self
123    }
124    pub fn method(&mut self, method: &str, url: &str) -> &mut Self {
125        self.url = url.to_string();
126        self.method = Method::Other(method.to_string());
127        self
128    }
129    pub fn header(&mut self, key: &str, value: JsonValue) -> &mut Self {
130        self.headers.insert(key.to_string(), value);
131        self
132    }
133    pub fn query(&mut self, key: &str, value: JsonValue) -> &mut Self {
134        self.query.insert(key.to_string(), value.to_string());
135        self
136    }
137    /// 请求JSON数据
138    pub fn raw_json(&mut self, data: JsonValue) -> &mut Self {
139        self.header("Content-Type", "application/json".into());
140        self.body = data.to_string().as_bytes().to_vec();
141        self.header("Content-Length", self.body.len().into());
142        self
143    }
144    /// 请求FormData数据
145    pub fn form_data(&mut self, data: JsonValue) -> &mut Self {
146        self.boundary = self.generate_boundary();
147        self.header("Content-Type", format!("multipart/form-data; boundary={}", self.boundary).into());
148        let mut body = vec![];
149        for (key, value) in data.entries() {
150            let file = Path::new(value.as_str().unwrap());
151            if file.is_file() {
152                let mut t = vec![];
153                let r = fs::File::open(file).unwrap().read(&mut t).unwrap();
154                let filename = file.file_name().unwrap().to_str().unwrap().to_string();
155                let content_type = if let Some(kind) = infer::get(&t[..r]) {
156                    kind.mime_type()
157                } else {
158                    "application/octet-stream"
159                };
160                body.extend(format!("--{}\r\n", self.boundary).as_bytes().to_vec());
161                body.extend(format!(r#"Content-Disposition: form-data; name="{}"; filename="{}"{}"#, key, filename, "\r\n").as_bytes().to_vec());
162                body.extend(format!(r#"Content-Type: {}{}"#, content_type, "\r\n\r\n").as_bytes().to_vec());
163                body.extend(&t[..r]);
164                body.extend("\r\n".to_string().as_bytes().to_vec());
165            } else {
166                body.extend(format!("--{}\r\n", self.boundary).as_bytes().to_vec());
167                body.extend(format!(r#"Content-Disposition: form-data; name="{}"{}"#, key, "\r\n\r\n").as_bytes().to_vec());
168                body.extend(format!("{value}\r\n").as_bytes().to_vec());
169            }
170        }
171        body.extend(format!("--{}--\r\n", self.boundary).as_bytes().to_vec());
172        self.body = body.to_vec();
173        self.header("Content-Length", self.body.len().into());
174        self
175    }
176    /// 表单urlencoded请求
177    pub fn x_www_form_urlencoded(&mut self, data: JsonValue) -> &mut Self {
178        self.header("Content-Type", "application/x-www-form-urlencoded".into());
179        let mut params = vec![];
180        for (key, value) in data.entries() {
181            params.push(format!("{}={}", key, value));
182        }
183        let params = params.join("&");
184        self.body = params.as_bytes().to_vec();
185        self.header("Content-Length", self.body.len().into());
186        self
187    }
188    pub fn send(&mut self) -> Result<ClientResponse, String> {
189        let mut url = Url::parse(&self.url)?;
190        let stream = match TcpStream::connect(format!("{}:{}", url.host, url.port)) {
191            Ok(stream) => stream,
192            Err(e) => {
193                if self.retry > 0 {
194                    self.retry -= 1;
195                    return self.send();
196                }
197                return Err(e.to_string());
198            }
199        };
200
201        if self.read_timeout > 0 {
202            let _ = stream.set_read_timeout(Option::from(Duration::from_secs(self.read_timeout)));
203        }
204        if self.write_timeout > 0 {
205            let _ = stream.set_write_timeout(Option::from(Duration::from_secs(self.write_timeout)));
206        }
207
208        let mut stream = if url.scheme == "https" {
209            let root_store = RootCertStore::from_iter(
210                webpki_roots::TLS_SERVER_ROOTS.iter().cloned()
211            );
212            let mut config = rustls::ClientConfig::builder().with_root_certificates(root_store).with_no_client_auth();
213            // 需要小写 http/1.1
214            config.alpn_protocols = vec![self.protocol.str().to_lowercase().as_bytes().to_vec()];
215            let example_com = url.host.clone().try_into().unwrap();
216            let client = ClientConnection::new(Arc::new(config), example_com).unwrap();
217            ClientStream::Https(Box::new(StreamOwned::new(client, stream)))
218        } else {
219            ClientStream::Http(stream)
220        };
221
222
223        if !self.query.is_empty() {
224            url.set_query(self.query.clone());
225        }
226
227        let request_line = format!("{} {} {}", self.method.str(), url.path_query.as_str(), self.protocol.str());
228
229        let host = if IpAddr::from_str(url.host.as_str()).is_ok() {
230            format!("Host: {}:{}", url.host, url.port)
231        } else {
232            format!("Host: {}", url.host)
233        };
234
235
236        let mut header = vec![request_line, host];
237
238
239        // 拼接 Header 头
240        for (key, value) in self.headers.iter() {
241            header.push(format!("{}: {}", key, value));
242        }
243
244        // 拼接 Cookie 头
245        for (key, value) in self.cookies.iter() {
246            header.push(format!("Set-Cookie: {}={}", key, value));
247        }
248
249        // 消息体隔离符号
250        header.push("\r\n".to_string());
251        match stream.write_all(header.join("\r\n").as_bytes()) {
252            Ok(()) => {
253                match stream.flush() {
254                    Ok(e) => e,
255                    Err(e) => return Err(e.to_string())
256                };
257            }
258            Err(e) => {
259                if self.retry > 0 {
260                    self.retry -= 1;
261                    return self.send();
262                }
263                return Err(e.to_string());
264            }
265        };
266
267        if self.debug {
268            debug!("\r\n==============请求头 {:?}============== \r\n{}\r\n============================",thread::current().id(), header.join("\r\n"));
269        }
270
271        if !self.body.is_empty() {
272            match stream.write_all(self.body.as_slice()) {
273                Ok(()) => {
274                    match stream.flush() {
275                        Ok(e) => e,
276                        Err(e) => return Err(e.to_string())
277                    };
278                }
279                Err(e) => {
280                    if self.retry > 0 {
281                        self.retry -= 1;
282                        return self.send();
283                    }
284                    return Err(e.to_string());
285                }
286            }
287        }
288
289        if self.debug && self.boundary.is_empty() {
290            debug!("\r\n==============请求体 {:?}============== \r\n{}\r\n============================",thread::current().id(),String::from_utf8_lossy(self.body.as_slice()));
291        }
292
293
294        let mut res = ClientResponse::new(self.debug, stream).handle()?;
295        if [301, 302, 303].contains(&(res.status() as i32)) && !res.location().is_empty() {
296            self.url = res.location();
297            return self.send();
298        }
299        self.reset();
300        Ok(res)
301    }
302}
303
304
305
br_web_server/client.rs

br_web_server/
client.rs
