修改后台权限

node_modules/jose/dist/webapi/jwe/general/encrypt.js

@@ -0,0 +1,182 @@
+import { FlattenedEncrypt } from '../flattened/encrypt.js';
+import { unprotected, assertNotSet } from '../../lib/helpers.js';
+import { JOSENotSupported, JWEInvalid } from '../../util/errors.js';
+import { generateCek } from '../../lib/content_encryption.js';
+import { isDisjoint } from '../../lib/type_checks.js';
+import { encryptKeyManagement } from '../../lib/key_management.js';
+import { encode as b64u } from '../../util/base64url.js';
+import { validateCrit } from '../../lib/validate_crit.js';
+import { normalizeKey } from '../../lib/normalize_key.js';
+import { checkKeyType } from '../../lib/check_key_type.js';
+class IndividualRecipient {
+    #parent;
+    unprotectedHeader;
+    keyManagementParameters;
+    key;
+    options;
+    constructor(enc, key, options) {
+        this.#parent = enc;
+        this.key = key;
+        this.options = options;
+    }
+    setUnprotectedHeader(unprotectedHeader) {
+        assertNotSet(this.unprotectedHeader, 'setUnprotectedHeader');
+        this.unprotectedHeader = unprotectedHeader;
+        return this;
+    }
+    setKeyManagementParameters(parameters) {
+        assertNotSet(this.keyManagementParameters, 'setKeyManagementParameters');
+        this.keyManagementParameters = parameters;
+        return this;
+    }
+    addRecipient(...args) {
+        return this.#parent.addRecipient(...args);
+    }
+    encrypt(...args) {
+        return this.#parent.encrypt(...args);
+    }
+    done() {
+        return this.#parent;
+    }
+}
+export class GeneralEncrypt {
+    #plaintext;
+    #recipients = [];
+    #protectedHeader;
+    #unprotectedHeader;
+    #aad;
+    constructor(plaintext) {
+        this.#plaintext = plaintext;
+    }
+    addRecipient(key, options) {
+        const recipient = new IndividualRecipient(this, key, { crit: options?.crit });
+        this.#recipients.push(recipient);
+        return recipient;
+    }
+    setProtectedHeader(protectedHeader) {
+        assertNotSet(this.#protectedHeader, 'setProtectedHeader');
+        this.#protectedHeader = protectedHeader;
+        return this;
+    }
+    setSharedUnprotectedHeader(sharedUnprotectedHeader) {
+        assertNotSet(this.#unprotectedHeader, 'setSharedUnprotectedHeader');
+        this.#unprotectedHeader = sharedUnprotectedHeader;
+        return this;
+    }
+    setAdditionalAuthenticatedData(aad) {
+        this.#aad = aad;
+        return this;
+    }
+    async encrypt() {
+        if (!this.#recipients.length) {
+            throw new JWEInvalid('at least one recipient must be added');
+        }
+        if (this.#recipients.length === 1) {
+            const [recipient] = this.#recipients;
+            const flattened = await new FlattenedEncrypt(this.#plaintext)
+                .setAdditionalAuthenticatedData(this.#aad)
+                .setProtectedHeader(this.#protectedHeader)
+                .setSharedUnprotectedHeader(this.#unprotectedHeader)
+                .setUnprotectedHeader(recipient.unprotectedHeader)
+                .encrypt(recipient.key, { ...recipient.options });
+            const jwe = {
+                ciphertext: flattened.ciphertext,
+                iv: flattened.iv,
+                recipients: [{}],
+                tag: flattened.tag,
+            };
+            if (flattened.aad)
+                jwe.aad = flattened.aad;
+            if (flattened.protected)
+                jwe.protected = flattened.protected;
+            if (flattened.unprotected)
+                jwe.unprotected = flattened.unprotected;
+            if (flattened.encrypted_key)
+                jwe.recipients[0].encrypted_key = flattened.encrypted_key;
+            if (flattened.header)
+                jwe.recipients[0].header = flattened.header;
+            return jwe;
+        }
+        let enc;
+        for (let i = 0; i < this.#recipients.length; i++) {
+            const recipient = this.#recipients[i];
+            if (!isDisjoint(this.#protectedHeader, this.#unprotectedHeader, recipient.unprotectedHeader)) {
+                throw new JWEInvalid('JWE Protected, JWE Shared Unprotected and JWE Per-Recipient Header Parameter names must be disjoint');
+            }
+            const joseHeader = {
+                ...this.#protectedHeader,
+                ...this.#unprotectedHeader,
+                ...recipient.unprotectedHeader,
+            };
+            const { alg } = joseHeader;
+            if (typeof alg !== 'string' || !alg) {
+                throw new JWEInvalid('JWE "alg" (Algorithm) Header Parameter missing or invalid');
+            }
+            if (alg === 'dir' || alg === 'ECDH-ES') {
+                throw new JWEInvalid('"dir" and "ECDH-ES" alg may only be used with a single recipient');
+            }
+            if (typeof joseHeader.enc !== 'string' || !joseHeader.enc) {
+                throw new JWEInvalid('JWE "enc" (Encryption Algorithm) Header Parameter missing or invalid');
+            }
+            if (!enc) {
+                enc = joseHeader.enc;
+            }
+            else if (enc !== joseHeader.enc) {
+                throw new JWEInvalid('JWE "enc" (Encryption Algorithm) Header Parameter must be the same for all recipients');
+            }
+            validateCrit(JWEInvalid, new Map(), recipient.options.crit, this.#protectedHeader, joseHeader);
+            if (joseHeader.zip !== undefined && joseHeader.zip !== 'DEF') {
+                throw new JOSENotSupported('Unsupported JWE "zip" (Compression Algorithm) Header Parameter value.');
+            }
+            if (joseHeader.zip !== undefined && !this.#protectedHeader?.zip) {
+                throw new JWEInvalid('JWE "zip" (Compression Algorithm) Header Parameter MUST be in a protected header.');
+            }
+        }
+        const cek = generateCek(enc);
+        const jwe = {
+            ciphertext: '',
+            recipients: [],
+        };
+        for (let i = 0; i < this.#recipients.length; i++) {
+            const recipient = this.#recipients[i];
+            const target = {};
+            jwe.recipients.push(target);
+            if (i === 0) {
+                const flattened = await new FlattenedEncrypt(this.#plaintext)
+                    .setAdditionalAuthenticatedData(this.#aad)
+                    .setContentEncryptionKey(cek)
+                    .setProtectedHeader(this.#protectedHeader)
+                    .setSharedUnprotectedHeader(this.#unprotectedHeader)
+                    .setUnprotectedHeader(recipient.unprotectedHeader)
+                    .setKeyManagementParameters(recipient.keyManagementParameters)
+                    .encrypt(recipient.key, {
+                    ...recipient.options,
+                    [unprotected]: true,
+                });
+                jwe.ciphertext = flattened.ciphertext;
+                jwe.iv = flattened.iv;
+                jwe.tag = flattened.tag;
+                if (flattened.aad)
+                    jwe.aad = flattened.aad;
+                if (flattened.protected)
+                    jwe.protected = flattened.protected;
+                if (flattened.unprotected)
+                    jwe.unprotected = flattened.unprotected;
+                target.encrypted_key = flattened.encrypted_key;
+                if (flattened.header)
+                    target.header = flattened.header;
+                continue;
+            }
+            const alg = recipient.unprotectedHeader?.alg ||
+                this.#protectedHeader?.alg ||
+                this.#unprotectedHeader?.alg;
+            checkKeyType(alg === 'dir' ? enc : alg, recipient.key, 'encrypt');
+            const k = await normalizeKey(recipient.key, alg);
+            const { encryptedKey, parameters } = await encryptKeyManagement(alg, enc, k, cek, recipient.keyManagementParameters);
+            target.encrypted_key = b64u(encryptedKey);
+            if (recipient.unprotectedHeader || parameters)
+                target.header = { ...recipient.unprotectedHeader, ...parameters };
+        }
+        return jwe;
+    }
+}