systemprompt_security/authz/types/
request.rs

1//! `AuthzRequest` and the open enforcement-site `AuthzContext`.
2//!
3//! Copyright (c) systemprompt.io — Business Source License 1.1.
4//! See <https://systemprompt.io> for licensing details.
5
6use std::borrow::Cow;
7use std::collections::BTreeMap;
8
9use serde::{Deserialize, Serialize};
10use systemprompt_identifiers::{
11    Actor, ContextId, McpToolName, ModelId, SessionId, TaskId, TraceId, UserId,
12};
13
14use super::decision::DenyReason;
15use super::entity_ref::EntityRef;
16
17/// Open enforcement-site context attached to an [`AuthzRequest`].
18///
19/// Replaces the previous closed enum so tenants can add their own
20/// enforcement sites (skill execution, order submission, file egress, ...)
21/// without a core change.
22///
23/// `kind` is a dotted-namespaced literal. Core mints three:
24///
25/// - `"none"` — no context (server-attach RBAC, etc).
26/// - `"gateway.invocation"` — payload `{ "model": "..." }`.
27/// - `"mcp.tool_call"` — payload `{ "tool": "..." }`.
28///
29/// Tenants mint their own (e.g. `"acme.order_submission"`) and recognise
30/// them in their hook. Core never interprets `payload`.
31#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
32pub struct AuthzContext {
33    pub kind: Cow<'static, str>,
34    #[serde(default, skip_serializing_if = "serde_json::Value::is_null")]
35    pub payload: serde_json::Value,
36}
37
38impl Default for AuthzContext {
39    fn default() -> Self {
40        Self::none()
41    }
42}
43
44impl AuthzContext {
45    pub const NONE_KIND: &'static str = "none";
46    pub const GATEWAY_INVOCATION_KIND: &'static str = "gateway.invocation";
47    pub const MCP_TOOL_CALL_KIND: &'static str = "mcp.tool_call";
48
49    #[must_use]
50    pub const fn none() -> Self {
51        Self {
52            kind: Cow::Borrowed(Self::NONE_KIND),
53            payload: serde_json::Value::Null,
54        }
55    }
56
57    #[must_use]
58    pub fn gateway_invocation(model: &ModelId) -> Self {
59        Self {
60            kind: Cow::Borrowed(Self::GATEWAY_INVOCATION_KIND),
61            payload: serde_json::json!({ "model": model.as_str() }),
62        }
63    }
64
65    #[must_use]
66    pub fn mcp_tool_call(tool: &McpToolName) -> Self {
67        Self {
68            kind: Cow::Borrowed(Self::MCP_TOOL_CALL_KIND),
69            payload: serde_json::json!({ "tool": tool.as_str() }),
70        }
71    }
72
73    #[must_use]
74    pub fn extension(kind: impl Into<Cow<'static, str>>, payload: serde_json::Value) -> Self {
75        Self {
76            kind: kind.into(),
77            payload,
78        }
79    }
80
81    #[must_use]
82    pub fn gateway_invocation_model(&self) -> Option<ModelId> {
83        if self.kind != Self::GATEWAY_INVOCATION_KIND {
84            return None;
85        }
86        self.payload
87            .get("model")
88            .and_then(|v| v.as_str())
89            .map(ModelId::new)
90    }
91
92    #[must_use]
93    pub fn mcp_tool_call_tool(&self) -> Option<McpToolName> {
94        if self.kind != Self::MCP_TOOL_CALL_KIND {
95            return None;
96        }
97        self.payload
98            .get("tool")
99            .and_then(|v| v.as_str())
100            .map(McpToolName::new)
101    }
102
103    #[must_use]
104    pub fn is_none(&self) -> bool {
105        self.kind == Self::NONE_KIND
106    }
107
108    pub const MARKETPLACE_FLOOR_KEY: &'static str = "marketplace.attribute_floor";
109
110    #[must_use]
111    pub fn with_marketplace_floor(&self, floor: &BTreeMap<String, serde_json::Value>) -> Self {
112        let mut payload = match self.payload.clone() {
113            serde_json::Value::Object(map) => map,
114            _ => serde_json::Map::new(),
115        };
116        let floor_value = floor
117            .iter()
118            .map(|(k, v)| (k.clone(), v.clone()))
119            .collect::<serde_json::Map<String, serde_json::Value>>();
120        payload.insert(
121            Self::MARKETPLACE_FLOOR_KEY.to_owned(),
122            serde_json::Value::Object(floor_value),
123        );
124        Self {
125            kind: self.kind.clone(),
126            payload: serde_json::Value::Object(payload),
127        }
128    }
129
130    #[must_use]
131    pub fn marketplace_floor(&self) -> Option<BTreeMap<String, serde_json::Value>> {
132        let obj = self.payload.get(Self::MARKETPLACE_FLOOR_KEY)?.as_object()?;
133        Some(
134            obj.iter()
135                .map(|(k, v)| (k.clone(), v.clone()))
136                .collect::<BTreeMap<String, serde_json::Value>>(),
137        )
138    }
139}
140
141#[derive(Debug, Clone, Serialize, Deserialize)]
142pub struct AuthzRequest {
143    pub entity: EntityRef,
144    pub user_id: UserId,
145    #[serde(default)]
146    pub roles: Vec<String>,
147    #[serde(default, skip_serializing_if = "BTreeMap::is_empty")]
148    pub attributes: BTreeMap<String, serde_json::Value>,
149    pub trace_id: TraceId,
150    #[serde(default, skip_serializing_if = "Option::is_none")]
151    pub session_id: Option<SessionId>,
152    #[serde(default)]
153    pub context: AuthzContext,
154    #[serde(default, skip_serializing_if = "Option::is_none")]
155    pub context_id: Option<ContextId>,
156    #[serde(default, skip_serializing_if = "Option::is_none")]
157    pub task_id: Option<TaskId>,
158    #[serde(default, skip_serializing_if = "Vec::is_empty")]
159    pub act_chain: Vec<Actor>,
160}
161
162#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
163#[serde(tag = "decision", rename_all = "lowercase")]
164pub enum AuthzDecision {
165    Allow,
166    Deny { reason: DenyReason, policy: String },
167}
systemprompt_security/authz/types/request.rs

systemprompt_security/authz/types/
request.rs
