@kya-os/mcp-i
Version:
The TypeScript MCP framework with identity features built-in
131 lines (130 loc) • 5.12 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.DefaultDelegationManager = void 0;
exports.createDelegationManager = createDelegationManager;
exports.extractDelegationContext = extractDelegationContext;
const config_1 = require("./config");
/**
* Default delegation manager implementation
*/
class DefaultDelegationManager {
config;
constructor(config) {
this.config = (0, config_1.createStorageConfig)(config);
}
async issue(request) {
// TODO: Replace with actual KTA delegation API call
// This is a placeholder implementation
const now = Math.floor(Date.now() / 1000);
const duration = request.duration || 3600; // Default 1 hour
const delegation = {
issuer: "did:web:example.com:issuer", // TODO: Get from identity
subject: request.subject,
scopes: request.scopes,
nbf: now,
exp: now + duration,
aud: request.audience,
};
// Mock receipt
const receipt = {
$schema: "https://schemas.kya-os.ai/mcpi/receipt/v1.0.0.json",
ref: `del_${Date.now()}_${Math.random().toString(36).substr(2, 9)}`,
contentHash: `sha256:${Array.from({ length: 64 }, () => Math.floor(Math.random() * 16).toString(16)).join("")}`,
action: "issue",
ts: new Date().toISOString(),
logIndex: Math.floor(Math.random() * 10000),
logRoot: Array.from({ length: 64 }, () => Math.floor(Math.random() * 16).toString(16)).join(""),
inclusionProof: [
Array.from({ length: 64 }, () => Math.floor(Math.random() * 16).toString(16)).join(""),
],
};
const response = {
delegation,
receipt,
};
// Add encrypted payload for ktaEncrypted mode
if (this.config.mode === "ktaEncrypted" && this.config.encryptionEnabled) {
response.encryptedPayload = await this.encryptDelegation(delegation, request.audience);
}
return response;
}
async revoke(_delegationRef) {
// TODO: Replace with actual KTA revocation API call
// This is a placeholder implementation
const receipt = {
$schema: "https://schemas.kya-os.ai/mcpi/receipt/v1.0.0.json",
ref: `rev_${Date.now()}_${Math.random().toString(36).substr(2, 9)}`,
contentHash: `sha256:${Array.from({ length: 64 }, () => Math.floor(Math.random() * 16).toString(16)).join("")}`,
action: "revoke",
ts: new Date().toISOString(),
logIndex: Math.floor(Math.random() * 10000),
logRoot: Array.from({ length: 64 }, () => Math.floor(Math.random() * 16).toString(16)).join(""),
inclusionProof: [
Array.from({ length: 64 }, () => Math.floor(Math.random() * 16).toString(16)).join(""),
],
};
return receipt;
}
async isActive(delegationRef) {
// TODO: Replace with actual KTA status check
// This is a placeholder implementation
// Mock: assume delegation is active if ref looks valid
return delegationRef.startsWith("del_") && delegationRef.length > 10;
}
async get(delegationRef) {
// TODO: Replace with actual KTA lookup
// This is a placeholder implementation
if (!(await this.isActive(delegationRef))) {
return null;
}
// Mock delegation
const now = Math.floor(Date.now() / 1000);
return {
issuer: "did:web:example.com:issuer",
subject: "did:web:example.com:subject",
scopes: ["read", "write"],
nbf: now - 3600,
exp: now + 3600,
delegationRef,
};
}
async listBySubject(_subject) {
// TODO: Replace with actual KTA query
// This is a placeholder implementation
// Mock: return empty list for now
return [];
}
/**
* Encrypt delegation payload for audience
*/
async encryptDelegation(delegation, _audience) {
// TODO: Implement actual audience-key encryption
// This is a placeholder implementation
const payload = JSON.stringify(delegation);
// Mock encryption: base64 encode for now
// In real implementation, this would use the audience's public key
return Buffer.from(payload).toString("base64");
}
}
exports.DefaultDelegationManager = DefaultDelegationManager;
/**
* Create delegation manager instance
*/
function createDelegationManager(config) {
return new DefaultDelegationManager(config);
}
/**
* Extract delegation context from proof metadata
*/
function extractDelegationContext(delegationRef) {
if (!delegationRef) {
return null;
}
// TODO: Parse delegation reference and extract context
// This is a placeholder implementation
return {
delegationRef,
scopes: ["read", "write"], // Mock scopes
expiresAt: Date.now() + 3600000, // Mock expiry (1 hour from now)
};
}