strest 0.1.10

Blazing-fast async HTTP load tester in Rust - lock-free design, real-time stats, distributed runs, and optional chart exports for high-load API testing.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160

use std::net::{SocketAddr, ToSocketAddrs};

use url::Url;

use crate::args::Protocol;
use crate::args::TesterArgs;
use crate::error::{AppError, AppResult, HttpError, ValidationError};

pub(super) fn resolve_endpoint(
    args: &TesterArgs,
    allowed_schemes: &[(&'static str, u16)],
) -> AppResult<SocketAddr> {
    let raw_url = args
        .url
        .as_deref()
        .ok_or_else(|| AppError::validation(ValidationError::MissingUrl))?;
    let url = Url::parse(raw_url).map_err(|source| {
        AppError::validation(ValidationError::InvalidUrl {
            url: raw_url.to_owned(),
            source,
        })
    })?;

    let raw_scheme = url.scheme();
    let scheme = match (args.protocol, raw_scheme) {
        (Protocol::GrpcUnary | Protocol::GrpcStreaming, "grpc") => "http",
        (Protocol::GrpcUnary | Protocol::GrpcStreaming, "grpcs") => "https",
        _ => raw_scheme,
    };
    let default_port = allowed_schemes
        .iter()
        .find_map(|(allowed, default_port)| {
            if *allowed == scheme {
                Some(*default_port)
            } else {
                None
            }
        })
        .ok_or_else(|| {
            AppError::validation(ValidationError::UnsupportedProtocolUrlScheme {
                protocol: args.protocol.as_str().to_owned(),
                scheme: raw_scheme.to_owned(),
            })
        })?;

    let host = url
        .host_str()
        .ok_or_else(|| AppError::validation(ValidationError::UrlMissingHost))?;
    let port = url.port().unwrap_or(default_port);
    let endpoint = format!("{}:{}", host, port);
    let mut addrs = endpoint.to_socket_addrs().map_err(|source| {
        AppError::http(HttpError::ResolveHost {
            host: host.to_owned(),
            port,
            source,
        })
    })?;
    addrs.next().ok_or_else(|| {
        AppError::http(HttpError::NoAddressesResolved {
            host: endpoint.clone(),
        })
    })
}

pub(super) fn resolve_grpc_url(args: &TesterArgs) -> AppResult<(Url, bool)> {
    let raw_url = args
        .url
        .as_deref()
        .ok_or_else(|| AppError::validation(ValidationError::MissingUrl))?;
    let mut url = Url::parse(raw_url).map_err(|source| {
        AppError::validation(ValidationError::InvalidUrl {
            url: raw_url.to_owned(),
            source,
        })
    })?;

    let prior_knowledge = match url.scheme() {
        "http" => true,
        "https" => false,
        "grpc" => {
            if url.set_scheme("http").is_err() {
                url = replace_grpc_scheme(raw_url, &url, "http")?;
            }
            true
        }
        "grpcs" => {
            if url.set_scheme("https").is_err() {
                url = replace_grpc_scheme(raw_url, &url, "https")?;
            }
            false
        }
        other => {
            return Err(AppError::validation(
                ValidationError::UnsupportedProtocolUrlScheme {
                    protocol: args.protocol.as_str().to_owned(),
                    scheme: other.to_owned(),
                },
            ));
        }
    };

    if url.host_str().is_none() {
        return Err(AppError::validation(ValidationError::UrlMissingHost));
    }

    Ok((url, prior_knowledge))
}

fn replace_grpc_scheme(raw_url: &str, url: &Url, scheme: &str) -> AppResult<Url> {
    let rest_start = url.scheme().len().saturating_add(1);
    let rest = &url.as_str()[rest_start..];
    let normalized = format!("{scheme}:{}", rest);
    Url::parse(&normalized).map_err(|source| {
        AppError::validation(ValidationError::InvalidUrl {
            url: raw_url.to_owned(),
            source,
        })
    })
}

pub(super) fn resolve_websocket_url(args: &TesterArgs) -> AppResult<Url> {
    let raw_url = args
        .url
        .as_deref()
        .ok_or_else(|| AppError::validation(ValidationError::MissingUrl))?;
    let mut url = Url::parse(raw_url).map_err(|source| {
        AppError::validation(ValidationError::InvalidUrl {
            url: raw_url.to_owned(),
            source,
        })
    })?;

    match url.scheme() {
        "ws" | "wss" => Ok(url),
        "http" => {
            url.set_scheme("ws").map_err(|()| {
                AppError::validation(ValidationError::UnsupportedProtocolUrlScheme {
                    protocol: args.protocol.as_str().to_owned(),
                    scheme: "http".to_owned(),
                })
            })?;
            Ok(url)
        }
        "https" => {
            url.set_scheme("wss").map_err(|()| {
                AppError::validation(ValidationError::UnsupportedProtocolUrlScheme {
                    protocol: args.protocol.as_str().to_owned(),
                    scheme: "https".to_owned(),
                })
            })?;
            Ok(url)
        }
        other => Err(AppError::validation(
            ValidationError::UnsupportedProtocolUrlScheme {
                protocol: args.protocol.as_str().to_owned(),
                scheme: other.to_owned(),
            },
        )),
    }
}