initial commit

server/node_modules/jose/dist/browser/jws/general/sign.js

@@ -0,0 +1,67 @@
+import { FlattenedSign } from '../flattened/sign.js';
+import { JWSInvalid } from '../../util/errors.js';
+class IndividualSignature {
+    constructor(sig, key, options) {
+        this.parent = sig;
+        this.key = key;
+        this.options = options;
+    }
+    setProtectedHeader(protectedHeader) {
+        if (this.protectedHeader) {
+            throw new TypeError('setProtectedHeader can only be called once');
+        }
+        this.protectedHeader = protectedHeader;
+        return this;
+    }
+    setUnprotectedHeader(unprotectedHeader) {
+        if (this.unprotectedHeader) {
+            throw new TypeError('setUnprotectedHeader can only be called once');
+        }
+        this.unprotectedHeader = unprotectedHeader;
+        return this;
+    }
+    addSignature(...args) {
+        return this.parent.addSignature(...args);
+    }
+    sign(...args) {
+        return this.parent.sign(...args);
+    }
+    done() {
+        return this.parent;
+    }
+}
+export class GeneralSign {
+    constructor(payload) {
+        this._signatures = [];
+        this._payload = payload;
+    }
+    addSignature(key, options) {
+        const signature = new IndividualSignature(this, key, options);
+        this._signatures.push(signature);
+        return signature;
+    }
+    async sign() {
+        if (!this._signatures.length) {
+            throw new JWSInvalid('at least one signature must be added');
+        }
+        const jws = {
+            signatures: [],
+            payload: '',
+        };
+        for (let i = 0; i < this._signatures.length; i++) {
+            const signature = this._signatures[i];
+            const flattened = new FlattenedSign(this._payload);
+            flattened.setProtectedHeader(signature.protectedHeader);
+            flattened.setUnprotectedHeader(signature.unprotectedHeader);
+            const { payload, ...rest } = await flattened.sign(signature.key, signature.options);
+            if (i === 0) {
+                jws.payload = payload;
+            }
+            else if (jws.payload !== payload) {
+                throw new JWSInvalid('inconsistent use of JWS Unencoded Payload (RFC7797)');
+            }
+            jws.signatures.push(rest);
+        }
+        return jws;
+    }
+}