58 lines
1.8 KiB
Rust
58 lines
1.8 KiB
Rust
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//! RBAC policy loader for build-time auth pattern extraction.
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//!
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//! Reads `site/rbac.ncl` (via `nickel export`) and returns the URL patterns
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//! that are denied for anonymous users. These patterns are the **single source
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//! of truth** for route protection — no duplication in `config.ncl`.
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use anyhow::{Context, Result};
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use serde::Deserialize;
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use std::path::Path;
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#[derive(Debug, Deserialize)]
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struct RbacConfig {
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defaults: RbacDefaults,
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}
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#[derive(Debug, Deserialize)]
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struct RbacDefaults {
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unauthenticated_allow: Vec<RbacEntry>,
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}
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#[derive(Debug, Deserialize)]
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struct RbacEntry {
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resource: String,
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pattern: String,
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outcome: String,
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}
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/// Return URL patterns denied for anonymous users (from `defaults.unauthenticated_allow`).
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///
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/// Filters to `resource = "page"` + `outcome = "deny"` entries in the order they
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/// appear in the policy — the order matters for display but not for the generated
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/// pattern matcher, which checks all entries.
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///
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/// Returns an empty vec if `rbac.ncl` is absent (non-fatal; no protected routes).
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pub fn load_rbac_anonymous_deny_patterns(manifest_dir: &Path) -> Result<Vec<String>> {
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let rbac_ncl = manifest_dir.join("site").join("rbac.ncl");
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if !rbac_ncl.exists() {
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return Ok(Vec::new());
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}
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let json = rustelo_config::nickel::export_to_json(&rbac_ncl)
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.with_context(|| format!("Nickel export failed for {}", rbac_ncl.display()))?;
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let config: RbacConfig = serde_json::from_str(&json)
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.with_context(|| format!("JSON deserialisation failed for {}", rbac_ncl.display()))?;
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let patterns = config
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.defaults
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.unauthenticated_allow
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.into_iter()
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.filter(|e| e.resource == "page" && e.outcome == "deny")
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.map(|e| e.pattern)
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.collect();
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Ok(patterns)
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}
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