c2pa-http 0.1.0

C2PA manifest discovery over HTTP: the `c2pa-manifest` Link header (RFC 8288), with a Tower middleware
Documentation 
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[package]
name = "c2pa-http"
version = "0.1.0"
edition = "2021"
# `usize::is_multiple_of`, used by the link parser.
rust-version = "1.87"
description = "C2PA manifest discovery over HTTP: the `c2pa-manifest` Link header (RFC 8288), with a Tower middleware"
license = "MIT OR Apache-2.0"
repository = "https://github.com/writerslogic/c2pa-http"
keywords = ["c2pa", "provenance", "tower", "http", "link-header"]
categories = ["web-programming", "network-programming", "encoding"]
readme = "README.md"

# `cdylib` is what wasm-pack and maturin need to produce a loadable module;
# `rlib` keeps the crate usable as an ordinary Rust dependency.
[lib]
crate-type = ["cdylib", "rlib"]

[features]
default = ["tower"]
# The Tower `Layer`/`Service` that attaches the header to responses. The parser
# and serialiser in `link` need none of this and stay dependency-free, so a
# caller on hyper, axum, or a hand-rolled server can use the core alone with
# `default-features = false`.
tower = ["dep:http", "dep:tower-layer", "dep:tower-service", "dep:pin-project-lite"]
# Python bindings for the `link` parser, built with maturin/PyO3 for PyPI. The
# Tower layer is not bound — a `Layer` has no meaning outside a Rust service
# stack — but the RFC 8288 parser is exactly what a Python web framework needs
# to emit or read the header.
python = ["dep:pyo3"]

[dependencies]
http = { version = "1", optional = true }
tower-layer = { version = "0.3", optional = true }
tower-service = { version = "0.3", optional = true }
# Safe pin projection for the response future, so the crate can forbid unsafe.
# Macro-only and itself dependency-free; the same choice tower-http makes.
pin-project-lite = { version = "0.2", optional = true }

[target.'cfg(not(target_arch = "wasm32"))'.dependencies]
pyo3 = { version = "0.25", optional = true, features = ["extension-module", "abi3-py39"] }

# The npm distribution is a `wasm32` build of the `link` parser.
[target.'cfg(target_arch = "wasm32")'.dependencies]
wasm-bindgen = "0.2"
js-sys = "0.3"

[dev-dependencies]
tower = { version = "0.5", features = ["util"] }
tokio = { version = "1", features = ["macros", "rt"] }

[package.metadata.docs.rs]
all-features = true