tinyhttp_internal/
response.rs

1use std::{
2    collections::HashMap,
3    error::Error,
4    io::{Read, Write},
5};
6
7#[cfg(feature = "async")]
8use tokio::io::{AsyncReadExt, AsyncWriteExt};
9
10#[derive(Clone, Debug)]
11pub struct Response {
12    pub headers: HashMap<String, String>,
13    pub status_line: String,
14    pub body: Option<Vec<u8>>,
15    pub mime: Option<String>,
16    pub http2: bool,
17    pub(crate) manual_override: bool,
18}
19
20impl Default for Response {
21    fn default() -> Self {
22        Self::new()
23    }
24}
25
26impl<'a> From<&'a str> for Response {
27    fn from(value: &'a str) -> Self {
28        Response::new()
29            .body(value.into())
30            .mime("text/plain")
31            .status_line("HTTP/1.1 200 OK")
32    }
33}
34
35impl From<String> for Response {
36    fn from(value: String) -> Self {
37        Response::new()
38            .body(value.into_bytes())
39            .mime("text/plain")
40            .status_line("HTTP/1.1 200 OK")
41    }
42}
43
44impl From<Vec<u8>> for Response {
45    fn from(value: Vec<u8>) -> Self {
46        Response::new()
47            .body(value)
48            .mime("application/octet-stream")
49            .status_line("HTTP/1.1 200 OK")
50    }
51}
52
53impl From<()> for Response {
54    fn from(_value: ()) -> Self {
55        Response::new()
56            .body(vec![])
57            .mime("text/plain")
58            .status_line("HTTP/1.1 403 Forbidden")
59    }
60}
61
62impl<T: Into<Response>, E: Error + Into<Response>> From<Result<T, E>> for Response {
63    fn from(value: Result<T, E>) -> Self {
64        match value {
65            Ok(body) => body.into(),
66            Err(e) => e.into(),
67        }
68    }
69}
70
71impl From<Box<dyn Error>> for Response {
72    fn from(value: Box<dyn Error>) -> Self {
73        Response::new()
74            .body(value.to_string().into_bytes())
75            .mime("text/plain")
76            .status_line("HTTP/1.1 403 Forbidden")
77    }
78}
79
80impl Response {
81    pub fn new() -> Response {
82        Response {
83            headers: HashMap::new(),
84            status_line: String::new(),
85            body: None,
86            mime: Some(String::from("HTTP/1.1 200 OK")),
87            http2: false,
88            manual_override: false,
89        }
90    }
91
92    pub fn empty() -> Response {
93        Response {
94            headers: HashMap::new(),
95            status_line: String::new(),
96            body: None,
97            mime: None,
98            manual_override: true,
99            http2: false,
100        }
101    }
102
103    pub fn headers(mut self, headers: HashMap<String, String>) -> Self {
104        self.headers = headers;
105        self
106    }
107
108    pub fn status_line<P: Into<String>>(mut self, line: P) -> Self {
109        let line_str = line.into();
110        self.status_line = line_str.trim().to_string() + "\r\n";
111        self
112    }
113
114    pub fn body(mut self, body: Vec<u8>) -> Self {
115        self.body = Some(body);
116        self
117    }
118
119    pub fn mime<P>(mut self, mime: P) -> Self
120    where
121        P: Into<String>,
122    {
123        self.mime = Some(mime.into());
124        self
125    }
126
127    #[cfg(not(feature = "async"))]
128    pub fn send<P: Read + Write>(self, sock: &mut P) {
129        let line_bytes = self.status_line.as_bytes();
130        #[cfg(feature = "log")]
131        log::trace!("res status line: {:#?}", self.status_line);
132
133        let mut header_bytes: Vec<u8> = self
134            .headers
135            .into_iter()
136            .flat_map(|(i, j)| [(i + ": ").as_bytes(), (j + "\r\n").as_bytes()].concat())
137            .collect();
138
139        header_bytes.extend(b"\r\n");
140
141        #[cfg(all(feature = "log", debug_assertions))]
142        {
143            log::trace!(
144                "HEADER AS STR: {}",
145                String::from_utf8(header_bytes.clone()).unwrap()
146            );
147            log::trace!(
148                "STATUS LINE AS STR: {}",
149                std::str::from_utf8(line_bytes).unwrap()
150            );
151        };
152
153        let full_req: &[u8] = &[
154            line_bytes,
155            header_bytes.as_slice(),
156            self.body.as_ref().unwrap(),
157        ]
158        .concat();
159
160        #[cfg(feature = "log")]
161        log::trace!("size of response: {}", full_req.len());
162
163        sock.write_all(full_req).unwrap();
164    }
165
166    #[cfg(feature = "async")]
167    pub(crate) async fn send<P: AsyncReadExt + AsyncWriteExt + Unpin>(&self, sock: &mut P) {
168        let line_bytes = self.status_line.as_bytes();
169        #[cfg(feature = "log")]
170        log::trace!("res status line: {:#?}", self.status_line);
171
172        let mut header_bytes: Vec<u8> = self
173            .headers
174            .iter()
175            .flat_map(|s| [s.0.as_bytes(), s.1.as_bytes()].concat())
176            .collect();
177
178        header_bytes.extend(b"\r\n");
179
180        #[cfg(all(feature = "log", debug_assertions))]
181        {
182            log::trace!(
183                "HEADER AS STR: {}",
184                String::from_utf8(header_bytes.clone()).unwrap()
185            );
186            log::trace!(
187                "STATUS LINE AS STR: {}",
188                std::str::from_utf8(line_bytes).unwrap()
189            );
190        };
191
192        let full_req: &[u8] = &[
193            line_bytes,
194            header_bytes.as_slice(),
195            self.body.as_ref().unwrap(),
196        ]
197        .concat();
198
199        sock.write_all(full_req).await.unwrap();
200    }
201}
tinyhttp_internal/response.rs

tinyhttp_internal/
response.rs
