From 0479b6e7c6d1ba4669b63697000b5e51fdc3e1dd Mon Sep 17 00:00:00 2001
From: Daniel McCarney <daniel@binaryparadox.net>
Date: Thu, 14 Dec 2023 17:08:28 -0500
Subject: [PATCH] remove reqwest unit tests, dev-dependency

Previously the `verification` mod had a unit test,
`can_verify_server_cert`, that ensured using the platform verifier with
`reqwest` could be done without error.

The reason for this was that the `reqwest` API consumes custom
verifiers to use with a Rustls client config as `&dyn Any` inputs, and
then downcasts at runtime to the required `Arc<dyn ServerCertVerifier>`
- this means that if `rustls-platform-verifier` uses a different Rustls
version than `reqwest` a runtime panic would occur.

However, having this unit test in place means we can't update
`rustls-platform-verifier` to a new Rustls release until the `reqwest`
ecosystem first updates. This is suboptimal, as `reqwest` itself has
many dependencies that need similar updates.

This commit removes the unit test. Ensuring the Rustls versions match
should be handled by downstream consumers that have chosen to use
`reqwest`. There are other libraries one might use
`rustls-platform-verifier` with, and we shouldn't block useful updates
to this crate on `reqwest`. In general one already has to be careful
about mixing/matching Rustls versions across dependencies, the fact that
`reqwest` makes this a runtime concern is unfortunate, but not a great
reason to avoid keeping this crate in sync with the rest of the Rustls
ecosystem.
---
 Cargo.lock              | 600 +---------------------------------------
 Cargo.toml              |   4 -
 src/lib.rs              |   5 +-
 src/verification/mod.rs |  19 --
 4 files changed, 6 insertions(+), 622 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index 4d85db0d..a4eea190 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2,21 +2,6 @@
 # It is not intended for manual editing.
 version = 3
 
-[[package]]
-name = "addr2line"
-version = "0.21.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8a30b2e23b9e17a9f90641c7ab1549cd9b44f296d3ccbf309d2863cfe398a0cb"
-dependencies = [
- "gimli",
-]
-
-[[package]]
-name = "adler"
-version = "1.0.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f26201604c87b1e01bd3d98f8d5d9a8fcbb815e8cedb41ffccbeb4bf593a35fe"
-
 [[package]]
 name = "aho-corasick"
 version = "1.0.5"
@@ -50,21 +35,6 @@ version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d468802bab17cbc0cc575e9b053f41e72aa36bfa6b7f55e3529ffa43161b97fa"
 
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-version = "0.3.69"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2089b7e3f35b9dd2d0ed921ead4f6d318c27680d4a5bd167b3ee120edb105837"
-dependencies = [
- "addr2line",
- "cc",
- "cfg-if",
- "libc",
- "miniz_oxide",
- "object",
- "rustc-demangle",
-]
-
 [[package]]
 name = "base64"
 version = "0.21.3"
@@ -136,15 +106,6 @@ version = "0.8.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e496a50fda8aacccc86d7529e2c1e0892dbd0f898a6b5645b5561b89c3210efa"
 
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-dependencies = [
- "cfg-if",
-]
-
 [[package]]
 name = "env_logger"
 version = "0.10.0"
@@ -155,214 +116,6 @@ dependencies = [
  "regex",
 ]
 
-[[package]]
-name = "fnv"
-version = "1.0.7"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3f9eec918d3f24069decb9af1554cad7c880e2da24a9afd88aca000531ab82c1"
-
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-checksum = "a62bc1cf6f830c2ec14a513a9fb124d0a213a629668a4186f329db21fe045652"
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-
 [[package]]
 name = "jni"
 version = "0.19.0"
@@ -394,9 +147,9 @@ dependencies = [
 
 [[package]]
 name = "libc"
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+version = "0.2.151"
 source = "registry+https://github.com/rust-lang/crates.io-index"
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+checksum = "302d7ab3130588088d277783b1e2d2e10c9e9e4a16dd9050e6ec93fb3e7048f4"
 
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 name = "log"
@@ -410,32 +163,6 @@ version = "2.6.2"
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- "windows-sys",
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 name = "num-bigint"
 version = "0.4.4"
@@ -466,25 +193,6 @@ dependencies = [
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 ]
 
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-version = "1.16.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
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@@ -497,24 +205,6 @@ version = "0.1.5"
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@@ -562,44 +252,6 @@ version = "0.7.5"
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@@ -615,12 +267,6 @@ dependencies = [
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 [[package]]
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@@ -665,13 +311,11 @@ dependencies = [
  "jni",
  "log",
  "once_cell",
- "reqwest",
  "rustls",
  "rustls-native-certs",
  "rustls-webpki",
  "security-framework",
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- "tokio",
  "webpki-roots",
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@@ -686,12 +330,6 @@ dependencies = [
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@@ -744,78 +382,6 @@ dependencies = [
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-dependencies = [
- "bytes",
- "futures-core",
- "futures-sink",
- "pin-project-lite",
- "tokio",
- "tracing",
-]
-
-[[package]]
-name = "tower-service"
-version = "0.3.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b6bc1c9ce2b5135ac7f93c72918fc37feb872bdc6a5533a8b85eb4b86bfdae52"
-
-[[package]]
-name = "tracing"
-version = "0.1.37"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8ce8c33a8d48bd45d624a6e523445fd21ec13d3653cd51f681abf67418f54eb8"
-dependencies = [
- "cfg-if",
- "pin-project-lite",
- "tracing-core",
-]
-
-[[package]]
-name = "tracing-core"
-version = "0.1.31"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0955b8137a1df6f1a2e9a37d8a6656291ff0297c1a97c24e0d8425fe2312f79a"
-dependencies = [
- "once_cell",
-]
-
-[[package]]
-name = "try-lock"
-version = "0.2.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3528ecfd12c466c6f163363caf2d02a71161dd5e1cc6ae7b34207ea2d42d81ed"
-
-[[package]]
-name = "unicode-bidi"
-version = "0.3.13"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "92888ba5573ff080736b3648696b70cafad7d250551175acbaa4e0385b3e1460"
-
 [[package]]
 name = "unicode-ident"
 version = "1.0.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "301abaae475aa91687eb82514b328ab47a211a533026cb25fc3e519b86adfc3c"
 
-[[package]]
-name = "unicode-normalization"
-version = "0.1.22"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5c5713f0fc4b5db668a2ac63cdb7bb4469d8c9fed047b1d0292cc7b0ce2ba921"
-dependencies = [
- "tinyvec",
-]
-
 [[package]]
 name = "untrusted"
 version = "0.7.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a156c684c91ea7d62626509bce3cb4e1d9ed5c4d978f7b4352658f96a4c26b4a"
 
-[[package]]
-name = "url"
-version = "2.4.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "143b538f18257fac9cad154828a57c6bf5157e1aa604d4816b5995bf6de87ae5"
-dependencies = [
- "form_urlencoded",
- "idna",
- "percent-encoding",
-]
-
 [[package]]
 name = "walkdir"
 version = "2.3.3"
@@ -1000,21 +441,6 @@ dependencies = [
  "winapi-util",
 ]
 
-[[package]]
-name = "want"
-version = "0.3.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bfa7760aed19e106de2c7c0b581b509f2f25d3dacaf737cb82ac61bc6d760b0e"
-dependencies = [
- "try-lock",
-]
-
-[[package]]
-name = "wasi"
-version = "0.11.0+wasi-snapshot-preview1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
-
 [[package]]
 name = "wasm-bindgen"
 version = "0.2.87"
@@ -1040,18 +466,6 @@ dependencies = [
  "wasm-bindgen-shared",
 ]
 
-[[package]]
-name = "wasm-bindgen-futures"
-version = "0.4.37"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c02dbc21516f9f1f04f187958890d7e6026df8d16540b7ad9492bc34a67cea03"
-dependencies = [
- "cfg-if",
- "js-sys",
- "wasm-bindgen",
- "web-sys",
-]
-
 [[package]]
 name = "wasm-bindgen-macro"
 version = "0.2.87"
@@ -1193,13 +607,3 @@ name = "windows_x86_64_msvc"
 version = "0.48.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ed94fce61571a4006852b7389a063ab983c02eb1bb37b47f8272ce92d06d9538"
-
-[[package]]
-name = "winreg"
-version = "0.50.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "524e57b2c537c0f9b1e69f1965311ec12182b4122e45035b1508cd24d2adadb1"
-dependencies = [
- "cfg-if",
- "windows-sys",
-]
diff --git a/Cargo.toml b/Cargo.toml
index 09d2378e..8099dc5a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -67,10 +67,6 @@ security-framework-sys = { version = "2.4", features = ["OSX_10_14"] }
 [target.'cfg(windows)'.dependencies]
 winapi = { version = "0.3", features = ["wincrypt", "winerror"] }
 
-[dev-dependencies]
-tokio = { version = "1.5", features = ["macros", "rt-multi-thread"] }
-reqwest = { version = "0.11.18", default-features = false, features = ["rustls-tls-manual-roots"] }
-
 [package.metadata.docs.rs]
 rustdoc-args = ["--cfg", "docsrs"]
 features = ["dbg", "docsrs"]
diff --git a/src/lib.rs b/src/lib.rs
index aeba0637..1f44e2e4 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -34,7 +34,7 @@ pub use tests::ffi::*;
 /// # Example
 ///
 /// This example shows how to use the custom verifier with the `reqwest` crate:
-/// ```no_run
+/// ```ignore
 /// # use reqwest::ClientBuilder;
 /// #[tokio::main]
 /// async fn main() {
@@ -47,6 +47,9 @@ pub use tests::ffi::*;
 /// }
 /// ```
 ///
+/// **Important:** You must ensure that your `reqwest` version is using the same Rustls
+/// version as this crate or it will panic when downcasting the `&dyn Any` verifier.
+///
 /// If you require more control over the rustls `ClientConfig`, you can
 /// instantiate a [Verifier] with [Verifier::default] and then use it
 /// with [rustls::ConfigBuilder::with_custom_certificate_verifier].
diff --git a/src/verification/mod.rs b/src/verification/mod.rs
index 068def88..97d74707 100644
--- a/src/verification/mod.rs
+++ b/src/verification/mod.rs
@@ -73,22 +73,3 @@ fn invalid_certificate(reason: impl Into<String>) -> rustls::Error {
 /// - id-kp-serverAuth
 // TODO: Chromium also allows for `OID_ANY_EKU` on Android.
 pub const ALLOWED_EKUS: &[&str] = &["1.3.6.1.5.5.7.3.1"];
-
-#[cfg(test)]
-mod tests {
-    use crate::tls_config;
-    use reqwest::ClientBuilder;
-
-    #[tokio::test]
-    async fn can_verify_server_cert() {
-        let builder = ClientBuilder::new().use_preconfigured_tls(tls_config());
-
-        let client = builder.build().expect("TLS builder should be accepted");
-
-        client
-            .get("https://my.1password.com/signin")
-            .send()
-            .await
-            .expect("tls verification should pass");
-    }
-}