├── .github
    └── workflows
    │   ├── rust.yml
    │   └── semgrep.yml
├── .gitignore
├── Cargo.lock
├── Cargo.toml
├── LICENSE
├── README.md
├── src
    ├── config.rs
    ├── dns_utils.rs
    └── main.rs
└── tests
    ├── config.toml
    └── integration_test.rs


/.github/workflows/rust.yml:
--------------------------------------------------------------------------------
 1 | name: Rust
 2 | 
 3 | on:
 4 |   push:
 5 |     branches: [ master ]
 6 |   pull_request:
 7 |     branches: [ master ]
 8 | 
 9 | env:
10 |   CARGO_TERM_COLOR: always
11 | 
12 | jobs:
13 |   build:
14 | 
15 |     runs-on: ubuntu-latest
16 | 
17 |     steps:
18 |     - uses: actions/checkout@v2
19 |     - name: Formatting
20 |       run: cargo fmt -- --check
21 |     - name: Clippy
22 |       run: cargo clippy -- -D warnings
23 |     - name: Build
24 |       run: cargo build --verbose
25 |     - name: Run tests
26 |       run: cargo test --verbose
27 | 


--------------------------------------------------------------------------------
/.github/workflows/semgrep.yml:
--------------------------------------------------------------------------------
 1 | 
 2 | on:
 3 |   pull_request: {}
 4 |   workflow_dispatch: {}
 5 |   push: 
 6 |     branches:
 7 |       - main
 8 |       - master
 9 |   schedule:
10 |     - cron: '0 0 * * *'
11 | name: Semgrep config
12 | jobs:
13 |   semgrep:
14 |     name: semgrep/ci
15 |     runs-on: ubuntu-20.04
16 |     env:
17 |       SEMGREP_APP_TOKEN: ${{ secrets.SEMGREP_APP_TOKEN }}
18 |       SEMGREP_URL: https://cloudflare.semgrep.dev
19 |       SEMGREP_APP_URL: https://cloudflare.semgrep.dev
20 |       SEMGREP_VERSION_CHECK_URL: https://cloudflare.semgrep.dev/api/check-version
21 |     container:
22 |       image: returntocorp/semgrep
23 |     steps:
24 |       - uses: actions/checkout@v3
25 |       - run: semgrep ci
26 | 


--------------------------------------------------------------------------------
/.gitignore:
--------------------------------------------------------------------------------
1 | /target
2 | 


--------------------------------------------------------------------------------
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2093 | checksum = "1ce8a968cb1cd110d136ff8b819a556d6fb6d919363c61534f6860c7eb172ba0"
2094 | dependencies = [
2095 |  "log",
2096 |  "try-lock",
2097 | ]
2098 | 
2099 | [[package]]
2100 | name = "wasi"
2101 | version = "0.9.0+wasi-snapshot-preview1"
2102 | source = "registry+https://github.com/rust-lang/crates.io-index"
2103 | checksum = "cccddf32554fecc6acb585f82a32a72e28b48f8c4c1883ddfeeeaa96f7d8e519"
2104 | 
2105 | [[package]]
2106 | name = "wasi"
2107 | version = "0.10.0+wasi-snapshot-preview1"
2108 | source = "registry+https://github.com/rust-lang/crates.io-index"
2109 | checksum = "1a143597ca7c7793eff794def352d41792a93c481eb1042423ff7ff72ba2c31f"
2110 | 
2111 | [[package]]
2112 | name = "wasm-bindgen"
2113 | version = "0.2.68"
2114 | source = "registry+https://github.com/rust-lang/crates.io-index"
2115 | checksum = "1ac64ead5ea5f05873d7c12b545865ca2b8d28adfc50a49b84770a3a97265d42"
2116 | dependencies = [
2117 |  "cfg-if 0.1.10",
2118 |  "serde",
2119 |  "serde_json",
2120 |  "wasm-bindgen-macro",
2121 | ]
2122 | 
2123 | [[package]]
2124 | name = "wasm-bindgen-backend"
2125 | version = "0.2.68"
2126 | source = "registry+https://github.com/rust-lang/crates.io-index"
2127 | checksum = "f22b422e2a757c35a73774860af8e112bff612ce6cb604224e8e47641a9e4f68"
2128 | dependencies = [
2129 |  "bumpalo",
2130 |  "lazy_static",
2131 |  "log",
2132 |  "proc-macro2",
2133 |  "quote",
2134 |  "syn",
2135 |  "wasm-bindgen-shared",
2136 | ]
2137 | 
2138 | [[package]]
2139 | name = "wasm-bindgen-futures"
2140 | version = "0.4.18"
2141 | source = "registry+https://github.com/rust-lang/crates.io-index"
2142 | checksum = "b7866cab0aa01de1edf8b5d7936938a7e397ee50ce24119aef3e1eaa3b6171da"
2143 | dependencies = [
2144 |  "cfg-if 0.1.10",
2145 |  "js-sys",
2146 |  "wasm-bindgen",
2147 |  "web-sys",
2148 | ]
2149 | 
2150 | [[package]]
2151 | name = "wasm-bindgen-macro"
2152 | version = "0.2.68"
2153 | source = "registry+https://github.com/rust-lang/crates.io-index"
2154 | checksum = "6b13312a745c08c469f0b292dd2fcd6411dba5f7160f593da6ef69b64e407038"
2155 | dependencies = [
2156 |  "quote",
2157 |  "wasm-bindgen-macro-support",
2158 | ]
2159 | 
2160 | [[package]]
2161 | name = "wasm-bindgen-macro-support"
2162 | version = "0.2.68"
2163 | source = "registry+https://github.com/rust-lang/crates.io-index"
2164 | checksum = "f249f06ef7ee334cc3b8ff031bfc11ec99d00f34d86da7498396dc1e3b1498fe"
2165 | dependencies = [
2166 |  "proc-macro2",
2167 |  "quote",
2168 |  "syn",
2169 |  "wasm-bindgen-backend",
2170 |  "wasm-bindgen-shared",
2171 | ]
2172 | 
2173 | [[package]]
2174 | name = "wasm-bindgen-shared"
2175 | version = "0.2.68"
2176 | source = "registry+https://github.com/rust-lang/crates.io-index"
2177 | checksum = "1d649a3145108d7d3fbcde896a468d1bd636791823c9921135218ad89be08307"
2178 | 
2179 | [[package]]
2180 | name = "web-sys"
2181 | version = "0.3.45"
2182 | source = "registry+https://github.com/rust-lang/crates.io-index"
2183 | checksum = "4bf6ef87ad7ae8008e15a355ce696bed26012b7caa21605188cfd8214ab51e2d"
2184 | dependencies = [
2185 |  "js-sys",
2186 |  "wasm-bindgen",
2187 | ]
2188 | 
2189 | [[package]]
2190 | name = "winapi"
2191 | version = "0.3.9"
2192 | source = "registry+https://github.com/rust-lang/crates.io-index"
2193 | checksum = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419"
2194 | dependencies = [
2195 |  "winapi-i686-pc-windows-gnu",
2196 |  "winapi-x86_64-pc-windows-gnu",
2197 | ]
2198 | 
2199 | [[package]]
2200 | name = "winapi-i686-pc-windows-gnu"
2201 | version = "0.4.0"
2202 | source = "registry+https://github.com/rust-lang/crates.io-index"
2203 | checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
2204 | 
2205 | [[package]]
2206 | name = "winapi-x86_64-pc-windows-gnu"
2207 | version = "0.4.0"
2208 | source = "registry+https://github.com/rust-lang/crates.io-index"
2209 | checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
2210 | 
2211 | [[package]]
2212 | name = "winreg"
2213 | version = "0.7.0"
2214 | source = "registry+https://github.com/rust-lang/crates.io-index"
2215 | checksum = "0120db82e8a1e0b9fb3345a539c478767c0048d842860994d96113d5b667bd69"
2216 | dependencies = [
2217 |  "winapi",
2218 | ]
2219 | 
2220 | [[package]]
2221 | name = "wyz"
2222 | version = "0.2.0"
2223 | source = "registry+https://github.com/rust-lang/crates.io-index"
2224 | checksum = "85e60b0d1b5f99db2556934e21937020776a5d31520bf169e851ac44e6420214"
2225 | 
2226 | [[package]]
2227 | name = "x25519-dalek"
2228 | version = "1.1.0"
2229 | source = "registry+https://github.com/rust-lang/crates.io-index"
2230 | checksum = "bc614d95359fd7afc321b66d2107ede58b246b844cf5d8a0adcca413e439f088"
2231 | dependencies = [
2232 |  "curve25519-dalek",
2233 |  "rand_core 0.5.1",
2234 |  "zeroize",
2235 | ]
2236 | 
2237 | [[package]]
2238 | name = "zeroize"
2239 | version = "1.2.0"
2240 | source = "registry+https://github.com/rust-lang/crates.io-index"
2241 | checksum = "81a974bcdd357f0dca4d41677db03436324d45a4c9ed2d0b873a5a360ce41c36"
2242 | dependencies = [
2243 |  "zeroize_derive",
2244 | ]
2245 | 
2246 | [[package]]
2247 | name = "zeroize_derive"
2248 | version = "1.0.1"
2249 | source = "registry+https://github.com/rust-lang/crates.io-index"
2250 | checksum = "c3f369ddb18862aba61aa49bf31e74d29f0f162dec753063200e1dc084345d16"
2251 | dependencies = [
2252 |  "proc-macro2",
2253 |  "quote",
2254 |  "syn",
2255 |  "synstructure",
2256 | ]
2257 | 


--------------------------------------------------------------------------------
/Cargo.toml:
--------------------------------------------------------------------------------
 1 | [package]
 2 | name = "odoh-client-rs"
 3 | version = "1.0.0"
 4 | authors = [ "Tanya Verma <tverma@cloudflare.com>" ]
 5 | edition = "2018"
 6 | license = "BSD-2-Clause"
 7 | description = "Rust client for Oblivious DNS over HTTPS (ODoH) protocol version 1"
 8 | repository = "https://github.com/cloudflare/odoh-client-rs/"
 9 | keywords = [ "odoh", "protocols", "dns", "doh", "privacy" ]
10 | categories = [ "network-programming", "cryptography" ]
11 | 
12 | [dependencies]
13 | anyhow = "1"
14 | clap = "2.33"
15 | futures = "0.3"
16 | hex = "0.4"
17 | lazy_static = "1.4"
18 | odoh-rs = "=1.0.0-alpha.1"
19 | rand = { version = "0.8", features = [ "std_rng" ], default-features = false }
20 | regex = "1"
21 | reqwest = { version = "0.11", features = [ "cookies" ] }
22 | serde = { version = "1.0", features = [ "derive" ] }
23 | tokio = { version = "1", features = [ "full" ] }
24 | toml = "0.5"
25 | trust-dns-client = "0.20.1"
26 | trust-dns-proto = "0.20.1"
27 | url = "2.2"
28 | 
29 | [dev-dependencies]
30 | assert_cmd = "1"
31 | 


--------------------------------------------------------------------------------
/LICENSE:
--------------------------------------------------------------------------------
 1 | BSD 2-Clause License
 2 | 
 3 | Copyright (c) 2020, Cloudflare, Inc.
 4 | All rights reserved.
 5 | 
 6 | Redistribution and use in source and binary forms, with or without
 7 | modification, are permitted provided that the following conditions are met:
 8 | 
 9 | 1. Redistributions of source code must retain the above copyright notice, this
10 |    list of conditions and the following disclaimer.
11 | 
12 | 2. Redistributions in binary form must reproduce the above copyright notice,
13 |    this list of conditions and the following disclaimer in the documentation
14 |    and/or other materials provided with the distribution.
15 | 
16 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17 | AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 | IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 | DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
20 | FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 | DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
22 | SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
23 | CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24 | OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 | 


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
 1 | # odoh-client-rs
 2 | 
 3 | [![Latest Version]][crates.io]
 4 | 
 5 | [Latest Version]: https://img.shields.io/crates/v/odoh-client-rs.svg
 6 | [crates.io]: https://crates.io/crates/odoh-client-rs
 7 | 
 8 | [odoh-client-rs] is a CLI Rust client that can be used to access resolvers running the [Oblivious DNS over HTTPS (ODoH) protocol draft-06]. It is built using the [odoh-rs] library. It is mainly intended for testing as it can only send one request at a time. 
 9 | 
10 | [odoh-client-rs]: https://github.com/cloudflare/odoh-client-rs/
11 | [Oblivious DNS over HTTPS (ODoH) protocol draft-06]: https://tools.ietf.org/html/draft-pauly-dprive-oblivious-doh-06
12 | [odoh-rs]: https://github.com/cloudflare/odoh-rs/
13 | 
14 | # Example usage
15 | 
16 | The proxy and resolver are configured using the file specified by the `-c` flag, e.g., `-c config.toml`. The default configuration can be found at `tests/config.toml`. It uses https://odoh.cloudflare-dns.com, i.e., 1.1.1.1, as the target resolver, and a well known endpoint to retrieve the configs via `GET` requests.
17 | 
18 | ```bash
19 | $ cargo run -- example.com AAAA
20 | ```


--------------------------------------------------------------------------------
/src/config.rs:
--------------------------------------------------------------------------------
 1 | use anyhow::Result;
 2 | use serde::Deserialize;
 3 | use std::fs::File;
 4 | use std::io::prelude::*;
 5 | use std::path::Path;
 6 | 
 7 | // Encapsulates various configuration parameters
 8 | #[derive(Clone, Deserialize, Default, Debug)]
 9 | #[serde(default)]
10 | pub struct Config {
11 |     pub server: Server,
12 | }
13 | 
14 | #[derive(Clone, Deserialize, Default, Debug)]
15 | #[serde(default)]
16 | pub struct Server {
17 |     pub proxy: Option<String>,
18 |     pub target: String,
19 | }
20 | 
21 | impl Config {
22 |     pub fn from_path<P: AsRef<Path>>(path: P) -> Result<Config> {
23 |         let mut fd = File::open(path)?;
24 |         let mut toml = String::new();
25 |         fd.read_to_string(&mut toml)?;
26 |         Self::from_string(&toml)
27 |     }
28 | 
29 |     pub fn from_string(toml: &str) -> Result<Config> {
30 |         let c: Config = toml::from_str(toml)?;
31 |         Ok(c)
32 |     }
33 | }
34 | 


--------------------------------------------------------------------------------
/src/dns_utils.rs:
--------------------------------------------------------------------------------
 1 | use anyhow::{anyhow, Result};
 2 | use lazy_static::lazy_static;
 3 | use regex::Regex;
 4 | use std::str::FromStr;
 5 | use trust_dns_client::rr::{DNSClass, Name, RecordType};
 6 | use trust_dns_proto::op::{message::Message, query::Query};
 7 | 
 8 | /// Matches "TYPExxx..", where x is a number, returns xxx... parsed as u16
 9 | /// Example: "TYPE45" returns 45
10 | fn parse_unknown_qtype(qtype: &str) -> Result<u16> {
11 |     lazy_static! {
12 |         pub static ref RE: Regex = Regex::new(r"^(TYPE)(\d+)$").unwrap();
13 |     }
14 |     if RE.is_match(qtype) {
15 |         let mut captures = RE.captures_iter(qtype);
16 |         return Ok(captures.next().unwrap()[2].parse::<u16>()?);
17 |     }
18 |     Err(anyhow!("Not a valid qtype"))
19 | }
20 | 
21 | /// Creates a DNS query from a given domain and query type
22 | pub fn create_dns_query(domain: &str, query_type: &str) -> Result<Vec<u8>> {
23 |     let name = Name::from_str(domain)?;
24 |     let mut query = Query::query(name, get_qtype(query_type)?);
25 |     query.set_query_class(DNSClass::IN);
26 |     let mut msg = Message::new();
27 |     msg.add_query(query);
28 |     msg.set_recursion_desired(true);
29 |     let id: u16 = rand::random();
30 |     msg.set_id(id);
31 |     let msg_as_bytes = msg.to_vec()?;
32 |     Ok(msg_as_bytes)
33 | }
34 | 
35 | /// Parses a DNS answer from bytes and prints it
36 | pub fn parse_dns_answer(msg: &[u8]) -> Result<()> {
37 |     let result = Message::from_vec(msg)?;
38 |     println!("Response: {:?}", result.answers());
39 |     Ok(())
40 | }
41 | 
42 | /// Parse record type enum from &str
43 | fn get_qtype(qtype: &str) -> Result<RecordType> {
44 |     let rtype = match qtype {
45 |         "A" => RecordType::A,
46 |         "AAAA" => RecordType::AAAA,
47 |         "ANAME" => RecordType::ANAME,
48 |         "ANY" => RecordType::ANY,
49 |         "AXFR" => RecordType::AXFR,
50 |         "CAA" => RecordType::CAA,
51 |         "CNAME" => RecordType::CNAME,
52 |         "HINFO" => RecordType::HINFO,
53 |         "HTTPS" => RecordType::HTTPS,
54 |         "IXFR" => RecordType::IXFR,
55 |         "MX" => RecordType::MX,
56 |         "NAPTR" => RecordType::NAPTR,
57 |         "NS" => RecordType::NS,
58 |         "NULL" => RecordType::NULL,
59 |         "OPENPGPKEY" => RecordType::OPENPGPKEY,
60 |         "OPT" => RecordType::OPT,
61 |         "PTR" => RecordType::PTR,
62 |         "SOA" => RecordType::SOA,
63 |         "SRV" => RecordType::SRV,
64 |         "SSHFP" => RecordType::SSHFP,
65 |         "SVCB" => RecordType::SVCB,
66 |         "TLSA" => RecordType::TLSA,
67 |         "TXT" => RecordType::TXT,
68 |         "ZERO" => RecordType::ZERO,
69 |         _ => match parse_unknown_qtype(qtype) {
70 |             Ok(n) => RecordType::Unknown(n),
71 |             Err(_) => return Err(anyhow!("Record type is invalid")),
72 |         },
73 |     };
74 |     Ok(rtype)
75 | }
76 | 


--------------------------------------------------------------------------------
/src/main.rs:
--------------------------------------------------------------------------------
  1 | pub mod config;
  2 | pub mod dns_utils;
  3 | use anyhow::{anyhow, Context, Result};
  4 | use clap::{App, Arg};
  5 | use config::Config;
  6 | use dns_utils::{create_dns_query, parse_dns_answer};
  7 | use odoh_rs::*;
  8 | use rand::rngs::StdRng;
  9 | use rand::SeedableRng;
 10 | use reqwest::{
 11 |     header::{HeaderMap, ACCEPT, CACHE_CONTROL, CONTENT_TYPE},
 12 |     Client, Response, StatusCode,
 13 | };
 14 | use std::env;
 15 | use url::Url;
 16 | 
 17 | const PKG_NAME: &str = env!("CARGO_PKG_NAME");
 18 | const PKG_AUTHORS: &str = env!("CARGO_PKG_AUTHORS");
 19 | const PKG_VERSION: &str = env!("CARGO_PKG_VERSION");
 20 | const PKG_DESCRIPTION: &str = env!("CARGO_PKG_DESCRIPTION");
 21 | 
 22 | const QUERY_PATH: &str = "/dns-query";
 23 | const WELL_KNOWN: &str = "/.well-known/odohconfigs";
 24 | 
 25 | #[derive(Clone, Debug)]
 26 | struct ClientSession {
 27 |     pub client: Client,
 28 |     pub target: Url,
 29 |     pub proxy: Option<Url>,
 30 |     pub client_secret: Option<[u8; 16]>,
 31 |     pub target_config: ObliviousDoHConfigContents,
 32 |     pub query: Option<ObliviousDoHMessagePlaintext>,
 33 | }
 34 | 
 35 | impl ClientSession {
 36 |     /// Create a new ClientSession
 37 |     pub async fn new(config: Config) -> Result<Self> {
 38 |         let mut target = Url::parse(&config.server.target)?;
 39 |         target.set_path(QUERY_PATH);
 40 |         let proxy = if let Some(p) = &config.server.proxy {
 41 |             Url::parse(p).ok()
 42 |         } else {
 43 |             None
 44 |         };
 45 | 
 46 |         // fetch `odohconfigs` by querying well known endpoint using GET request
 47 |         let mut odohconfigs = reqwest::get(&format!("{}{}", config.server.target, WELL_KNOWN))
 48 |             .await?
 49 |             .bytes()
 50 |             .await?;
 51 |         let configs: ObliviousDoHConfigs = parse(&mut odohconfigs).context("invalid configs")?;
 52 |         let target_config = configs
 53 |             .into_iter()
 54 |             .next()
 55 |             .context("no available config")?
 56 |             .into();
 57 | 
 58 |         Ok(Self {
 59 |             client: Client::new(),
 60 |             target,
 61 |             proxy,
 62 |             client_secret: None,
 63 |             target_config,
 64 |             query: None,
 65 |         })
 66 |     }
 67 | 
 68 |     /// Create an oblivious query from a domain and query type
 69 |     pub fn create_request(&mut self, domain: &str, qtype: &str) -> Result<Vec<u8>> {
 70 |         // create a DNS message
 71 |         let dns_msg = create_dns_query(domain, qtype)?;
 72 |         let query = ObliviousDoHMessagePlaintext::new(&dns_msg, 1);
 73 |         self.query = Some(query.clone());
 74 |         let mut rng = StdRng::from_entropy();
 75 |         let (oblivious_query, client_secret) = encrypt_query(&query, &self.target_config, &mut rng)
 76 |             .context("failed to encrypt query")?;
 77 |         let query_body = compose(&oblivious_query)
 78 |             .context("failed to compose query body")?
 79 |             .freeze();
 80 |         self.client_secret = Some(client_secret);
 81 |         Ok(query_body.to_vec())
 82 |     }
 83 | 
 84 |     /// Set headers and build an HTTP request to send the oblivious query to the proxy/target.
 85 |     /// If a proxy is specified, the request will be sent to the proxy. However, if a proxy is absent,
 86 |     /// it will be sent directly to the target. Note that not specifying a proxy effectively nullifies
 87 |     /// the entire purpose of using ODoH.
 88 |     pub async fn send_request(&mut self, request: &[u8]) -> Result<Response> {
 89 |         let mut headers = HeaderMap::new();
 90 |         headers.insert(CONTENT_TYPE, ODOH_HTTP_HEADER.parse()?);
 91 |         headers.insert(ACCEPT, ODOH_HTTP_HEADER.parse()?);
 92 |         headers.insert(CACHE_CONTROL, "no-cache, no-store".parse()?);
 93 |         let query = [
 94 |             (
 95 |                 "targethost",
 96 |                 self.target
 97 |                     .host_str()
 98 |                     .context("Target host is not a valid host string")?,
 99 |             ),
100 |             ("targetpath", QUERY_PATH),
101 |         ];
102 |         let builder = if let Some(p) = &self.proxy {
103 |             self.client.post(p.clone()).headers(headers).query(&query)
104 |         } else {
105 |             self.client.post(self.target.clone()).headers(headers)
106 |         };
107 |         let resp = builder.body(request.to_vec()).send().await?;
108 |         Ok(resp)
109 |     }
110 | 
111 |     /// Parse the received response from the resolver and print the answer.
112 |     pub async fn parse_response(&self, resp: Response) -> Result<()> {
113 |         if resp.status() != StatusCode::OK {
114 |             return Err(anyhow!(
115 |                 "query failed with response status code {}",
116 |                 resp.status().as_u16()
117 |             ));
118 |         }
119 |         let mut data = resp.bytes().await?;
120 |         let response_body = parse(&mut data).context("failed to parse response body")?;
121 |         let response = decrypt_response(
122 |             &self.query.clone().unwrap(),
123 |             &response_body,
124 |             self.client_secret.clone().unwrap(),
125 |         )
126 |         .context("failed to decrypt response")?;
127 |         parse_dns_answer(&response.into_msg())?;
128 |         Ok(())
129 |     }
130 | }
131 | 
132 | #[tokio::main]
133 | async fn main() -> Result<()> {
134 |     let matches = App::new(PKG_NAME)
135 |         .version(PKG_VERSION)
136 |         .author(PKG_AUTHORS)
137 |         .about(PKG_DESCRIPTION)
138 |         .arg(
139 |             Arg::with_name("config_file")
140 |                 .short("c")
141 |                 .long("config")
142 |                 .value_name("FILE")
143 |                 .help("Path to the config.toml config file")
144 |                 .takes_value(true),
145 |         )
146 |         .arg(
147 |             Arg::with_name("domain")
148 |                 .help("Domain to query")
149 |                 .required(true)
150 |                 .index(1),
151 |         )
152 |         .arg(
153 |             Arg::with_name("type")
154 |                 .help("Query type")
155 |                 .required(true)
156 |                 .index(2),
157 |         )
158 |         .get_matches();
159 | 
160 |     let config_file = matches
161 |         .value_of("config_file")
162 |         .unwrap_or("tests/config.toml");
163 |     let config = Config::from_path(config_file)?;
164 |     let domain = matches.value_of("domain").unwrap();
165 |     let qtype = matches.value_of("type").unwrap();
166 |     let mut session = ClientSession::new(config.clone()).await?;
167 |     let request = session.create_request(domain, qtype)?;
168 |     let response = session.send_request(&request).await?;
169 |     session.parse_response(response).await?;
170 |     Ok(())
171 | }
172 | 


--------------------------------------------------------------------------------
/tests/config.toml:
--------------------------------------------------------------------------------
1 | [server]
2 | # proxy can be commented out, however this will defeat the purpose of using ODoH.
3 | proxy = "https://odoh1.surfdomeinen.nl/proxy"
4 | target = "https://odoh.cloudflare-dns.com"


--------------------------------------------------------------------------------
/tests/integration_test.rs:
--------------------------------------------------------------------------------
 1 | #[cfg(test)]
 2 | mod tests {
 3 |     use assert_cmd::Command;
 4 | 
 5 |     #[test]
 6 |     fn integration_test() {
 7 |         let mut cmd = Command::cargo_bin("odoh-client-rs").unwrap();
 8 |         let assert = cmd.args(&["google.com", "A"]).assert();
 9 |         assert.success();
10 |     }
11 | }
12 | 


--------------------------------------------------------------------------------