updates and warp 0.4

.envrc

@@ -0,0 +1 @@
+use flake

.github/workflows/ci.yaml

@@ -0,0 +1,17 @@
+name: "CI"
+on:
+  pull_request:
+  push:
+
+jobs:
+  checks:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: cachix/install-nix-action@v26
+      - uses: icewind1991/attic-action@v1
+        with:
+          name: ci
+          instance: https://cache.icewind.me
+          authToken: "${{ secrets.ATTIC_TOKEN }}"
+      - run: nix flake check --keep-going

.github/workflows/rust.yml

@@ -1,33 +0,0 @@
-on: [push, pull_request]
-
-name: CI
-
-jobs:
-  check:
-    name: Check
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-      - uses: actions-rs/toolchain@v1
-        with:
-          profile: minimal
-          toolchain: stable
-          override: true
-      - uses: Swatinem/rust-cache@v1
-      - uses: actions-rs/cargo@v1
-        with:
-          command: check
-
-  test:
-    runs-on: ubuntu-latest
-    name: Tests
-
-    steps:
-      - uses: actions/checkout@v2
-      - uses: actions-rs/toolchain@v1
-        with:
-          toolchain: stable
-      - uses: Swatinem/rust-cache@v1
-      - uses: actions-rs/cargo@v1
-        with:
-          command: test

.gitignore

@@ -1 +1,4 @@
-/target
+.idea
+target
+result
+.direnv

Cargo.toml

@@ -1,19 +1,22 @@
 [package]
 name = "warp-real-ip"
 description = "Warp filter to get the \"real ip\" of the remote client"
-version = "0.2.0"
+version = "0.3.0"
 authors = ["Robin Appelman <robin@icewind.nl>"]
-edition = "2018"
+edition = "2024"
 keywords = ["warp"]
 categories = ["web-programming::http-server"]
 license = "MIT OR Apache-2.0"
 repository = "https://github.com/icewind1991/warp-real-ip"
 documentation = "https://docs.rs/warp-real-ip"
+rust-version = "1.85.0"
 
 [dependencies]
-warp = { version = "0.3" }
+warp = { version = "0.4" }
-rfc7239 = "0.1"
+rfc7239 = "0.1.3"
-ipnetwork = "0.18"
+ipnetwork = "0.21"
+comma-separated = "0.1.0"
 
 [dev-dependencies]
-tokio = { version = "1.0", features = ["macros"] }
+tokio = { version = "1.0", features = ["macros", "rt-multi-thread"] }
+warp = { version = "0.4", features = ["test"] }

flake.lock

@@ -0,0 +1,107 @@
+{
+  "nodes": {
+    "crane": {
+      "locked": {
+        "lastModified": 1780099841,
+        "narHash": "sha256-EVZd2RsbpreRUDSi9rBwPY+ZxoyMaiEBbZxxhljbaS4=",
+        "owner": "ipetkov",
+        "repo": "crane",
+        "rev": "0532eb17955225173906d671fb36306bdeb1e2dc",
+        "type": "github"
+      },
+      "original": {
+        "owner": "ipetkov",
+        "repo": "crane",
+        "type": "github"
+      }
+    },
+    "flakelight": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1783953866,
+        "narHash": "sha256-S2qmQTzeI270WnguYV6R0vXDgtekjjCB7HQI9QiqDGI=",
+        "owner": "nix-community",
+        "repo": "flakelight",
+        "rev": "c9219d15f7d74ba690cba3b613f4ef2a08c16840",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "flakelight",
+        "type": "github"
+      }
+    },
+    "mill-scale": {
+      "inputs": {
+        "crane": "crane",
+        "flakelight": [
+          "flakelight"
+        ],
+        "rust-overlay": "rust-overlay"
+      },
+      "locked": {
+        "lastModified": 1780231986,
+        "narHash": "sha256-OyafczPtzE0Xa2zl3j/KvV2+ZVYGhYQHt0MOVWtDXlY=",
+        "ref": "refs/heads/main",
+        "rev": "f5cbda29b945df03256bf63c22fa4cd5fa429e67",
+        "revCount": 72,
+        "type": "git",
+        "url": "https://codeberg.org/icewind/mill-scale.git"
+      },
+      "original": {
+        "type": "git",
+        "url": "https://codeberg.org/icewind/mill-scale.git"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1783856661,
+        "narHash": "sha256-ZGP04e+Q6WyQJGA9ZvI5CL6+heGQldbAG9U1T9NGvmU=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "569d578509928497eddc3fdbf94a799027050be4",
+        "type": "github"
+      },
+      "original": {
+        "id": "nixpkgs",
+        "ref": "nixos-26.05",
+        "type": "indirect"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flakelight": "flakelight",
+        "mill-scale": "mill-scale",
+        "nixpkgs": "nixpkgs"
+      }
+    },
+    "rust-overlay": {
+      "inputs": {
+        "nixpkgs": [
+          "mill-scale",
+          "flakelight",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1780197589,
+        "narHash": "sha256-FVCr2Ij/jKf59a4LW481eeOF6rJRreOBrVgW/aUBTrw=",
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "rev": "21632e942d89bf1cce4e5a63d7e58a215a0cbfcc",
+        "type": "github"
+      },
+      "original": {
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,14 @@
+{
+  inputs = {
+    nixpkgs.url = "nixpkgs/nixos-26.05";
+    flakelight = {
+      url = "github:nix-community/flakelight";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+    mill-scale = {
+      url = "git+https://codeberg.org/icewind/mill-scale.git";
+      inputs.flakelight.follows = "flakelight";
+    };
+  };
+  outputs = {mill-scale, ...}: mill-scale ./. {};
+}

src/lib.rs

@@ -1,3 +1,4 @@
+use comma_separated::CommaSeparatedIterator;
 use ipnetwork::IpNetwork;
 use rfc7239::{parse, Forwarded, NodeIdentifier, NodeName};
 use std::borrow::Cow;
@@ -117,106 +118,12 @@ pub fn get_forwarded_for() -> impl Filter<Extract = (Vec<IpAddr>,), Error = Infa
         .unify()
 }
 
-#[derive(Copy, Clone)]
-enum CommaSeparatedIteratorState {
-    /// Start of string or after a ',' (including whitespace)
-    Default,
-    /// Inside a double quote
-    Quoted,
-    /// After escape character inside quote
-    QuotedPair,
-    /// Non quoted part
-    Token,
-    /// After closing double quote
-    PostAmbleForQuoted,
-}
-
-struct CommaSeparatedIterator<'a> {
-    /// target
-    target: &'a str,
-    /// iterator
-    char_indices: std::str::CharIndices<'a>,
-    /// current scanner state
-    state: CommaSeparatedIteratorState,
-    /// start position of the last token found
-    s: usize,
-}
-
-impl<'a> CommaSeparatedIterator<'a> {
-    pub fn new(target: &'a str) -> Self {
-        Self {
-            target,
-            char_indices: target.char_indices(),
-            state: CommaSeparatedIteratorState::Default,
-            s: 0,
-        }
-    }
-}
-
-impl<'a> Iterator for CommaSeparatedIterator<'a> {
-    type Item = &'a str;
-
-    fn next(&mut self) -> Option<Self::Item> {
-        for (i, c) in &mut self.char_indices {
-            let (next, next_state) = match (self.state, c) {
-                (CommaSeparatedIteratorState::Default, '"') => {
-                    self.s = i;
-                    (None, CommaSeparatedIteratorState::Quoted)
-                }
-                (CommaSeparatedIteratorState::Default, ' ' | '\t') => {
-                    (None, CommaSeparatedIteratorState::Default)
-                }
-                (CommaSeparatedIteratorState::Default, ',') => (
-                    Some(Some(&self.target[i..i])),
-                    CommaSeparatedIteratorState::Default,
-                ),
-                (CommaSeparatedIteratorState::Default, _) => {
-                    self.s = i;
-                    (None, CommaSeparatedIteratorState::Token)
-                }
-                (CommaSeparatedIteratorState::Quoted, '"') => (
-                    Some(Some(&self.target[self.s..i + 1])),
-                    CommaSeparatedIteratorState::PostAmbleForQuoted,
-                ),
-                (CommaSeparatedIteratorState::Quoted, '\\') => {
-                    (None, CommaSeparatedIteratorState::QuotedPair)
-                }
-                (CommaSeparatedIteratorState::QuotedPair, _) => {
-                    (None, CommaSeparatedIteratorState::Quoted)
-                }
-                (CommaSeparatedIteratorState::Token, ',') => (
-                    Some(Some(&self.target[self.s..i])),
-                    CommaSeparatedIteratorState::Default,
-                ),
-                (CommaSeparatedIteratorState::PostAmbleForQuoted, ',') => {
-                    (None, CommaSeparatedIteratorState::Default)
-                }
-                (current_state, _) => (None, current_state),
-            };
-            self.state = next_state;
-            if let Some(next) = next {
-                return next;
-            }
-        }
-        match self.state {
-            CommaSeparatedIteratorState::Default
-            | CommaSeparatedIteratorState::PostAmbleForQuoted => None,
-            CommaSeparatedIteratorState::Quoted
-            | CommaSeparatedIteratorState::QuotedPair
-            | CommaSeparatedIteratorState::Token => {
-                self.state = CommaSeparatedIteratorState::Default;
-                Some(&self.target[self.s..])
-            }
-        }
-    }
-}
-
 enum EscapeState {
     Normal,
     Escaped,
 }
 
-fn maybe_quoted(x: &str) -> Cow<str> {
+fn maybe_quoted(x: &str) -> Cow<'_, str> {
     let mut i = x.chars();
     if i.next() == Some('"') {
         let mut s = String::with_capacity(x.len());
@@ -279,7 +186,9 @@ mod tests {
     fn test_comma_separated_iterator() {
         assert_eq!(
             vec!["abc", "def", "ghi", "jkl", "mno", "pqr"],
-            CommaSeparatedIterator::new("abc,def, ghi,\tjkl , mno,\tpqr").collect::<Vec<&str>>()
+            CommaSeparatedIterator::new("abc,def, ghi,\tjkl , mno,\tpqr")
+                .map(str::trim)
+                .collect::<Vec<&str>>()
         );
         assert_eq!(
             vec![
@@ -294,6 +203,7 @@ mod tests {
             CommaSeparatedIterator::new(
                 "abc,\"def\", \"ghi\",\t\"jkl\" , \"mno\",\tpqr, \"abc, def\""
             )
+            .map(str::trim)
             .collect::<Vec<&str>>()
         );
     }