Update code

dev-assistant-mcp/node_modules/jose/dist/webapi/jwe/flattened/decrypt.js

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+import { decode as b64u } from '../../util/base64url.js';
+import { decrypt } from '../../lib/decrypt.js';
+import { JOSEAlgNotAllowed, JOSENotSupported, JWEInvalid } from '../../util/errors.js';
+import { isDisjoint } from '../../lib/is_disjoint.js';
+import { isObject } from '../../lib/is_object.js';
+import { decryptKeyManagement } from '../../lib/decrypt_key_management.js';
+import { decoder, concat, encode } from '../../lib/buffer_utils.js';
+import { generateCek } from '../../lib/cek.js';
+import { validateCrit } from '../../lib/validate_crit.js';
+import { validateAlgorithms } from '../../lib/validate_algorithms.js';
+import { normalizeKey } from '../../lib/normalize_key.js';
+import { checkKeyType } from '../../lib/check_key_type.js';
+import { decompress } from '../../lib/deflate.js';
+export async function flattenedDecrypt(jwe, key, options) {
+    if (!isObject(jwe)) {
+        throw new JWEInvalid('Flattened JWE must be an object');
+    }
+    if (jwe.protected === undefined && jwe.header === undefined && jwe.unprotected === undefined) {
+        throw new JWEInvalid('JOSE Header missing');
+    }
+    if (jwe.iv !== undefined && typeof jwe.iv !== 'string') {
+        throw new JWEInvalid('JWE Initialization Vector incorrect type');
+    }
+    if (typeof jwe.ciphertext !== 'string') {
+        throw new JWEInvalid('JWE Ciphertext missing or incorrect type');
+    }
+    if (jwe.tag !== undefined && typeof jwe.tag !== 'string') {
+        throw new JWEInvalid('JWE Authentication Tag incorrect type');
+    }
+    if (jwe.protected !== undefined && typeof jwe.protected !== 'string') {
+        throw new JWEInvalid('JWE Protected Header incorrect type');
+    }
+    if (jwe.encrypted_key !== undefined && typeof jwe.encrypted_key !== 'string') {
+        throw new JWEInvalid('JWE Encrypted Key incorrect type');
+    }
+    if (jwe.aad !== undefined && typeof jwe.aad !== 'string') {
+        throw new JWEInvalid('JWE AAD incorrect type');
+    }
+    if (jwe.header !== undefined && !isObject(jwe.header)) {
+        throw new JWEInvalid('JWE Shared Unprotected Header incorrect type');
+    }
+    if (jwe.unprotected !== undefined && !isObject(jwe.unprotected)) {
+        throw new JWEInvalid('JWE Per-Recipient Unprotected Header incorrect type');
+    }
+    let parsedProt;
+    if (jwe.protected) {
+        try {
+            const protectedHeader = b64u(jwe.protected);
+            parsedProt = JSON.parse(decoder.decode(protectedHeader));
+        }
+        catch {
+            throw new JWEInvalid('JWE Protected Header is invalid');
+        }
+    }
+    if (!isDisjoint(parsedProt, jwe.header, jwe.unprotected)) {
+        throw new JWEInvalid('JWE Protected, JWE Unprotected Header, and JWE Per-Recipient Unprotected Header Parameter names must be disjoint');
+    }
+    const joseHeader = {
+        ...parsedProt,
+        ...jwe.header,
+        ...jwe.unprotected,
+    };
+    validateCrit(JWEInvalid, new Map(), options?.crit, parsedProt, joseHeader);
+    if (joseHeader.zip !== undefined && joseHeader.zip !== 'DEF') {
+        throw new JOSENotSupported('Unsupported JWE "zip" (Compression Algorithm) Header Parameter value.');
+    }
+    if (joseHeader.zip !== undefined && !parsedProt?.zip) {
+        throw new JWEInvalid('JWE "zip" (Compression Algorithm) Header Parameter MUST be in a protected header.');
+    }
+    const { alg, enc } = joseHeader;
+    if (typeof alg !== 'string' || !alg) {
+        throw new JWEInvalid('missing JWE Algorithm (alg) in JWE Header');
+    }
+    if (typeof enc !== 'string' || !enc) {
+        throw new JWEInvalid('missing JWE Encryption Algorithm (enc) in JWE Header');
+    }
+    const keyManagementAlgorithms = options && validateAlgorithms('keyManagementAlgorithms', options.keyManagementAlgorithms);
+    const contentEncryptionAlgorithms = options &&
+        validateAlgorithms('contentEncryptionAlgorithms', options.contentEncryptionAlgorithms);
+    if ((keyManagementAlgorithms && !keyManagementAlgorithms.has(alg)) ||
+        (!keyManagementAlgorithms && alg.startsWith('PBES2'))) {
+        throw new JOSEAlgNotAllowed('"alg" (Algorithm) Header Parameter value not allowed');
+    }
+    if (contentEncryptionAlgorithms && !contentEncryptionAlgorithms.has(enc)) {
+        throw new JOSEAlgNotAllowed('"enc" (Encryption Algorithm) Header Parameter value not allowed');
+    }
+    let encryptedKey;
+    if (jwe.encrypted_key !== undefined) {
+        try {
+            encryptedKey = b64u(jwe.encrypted_key);
+        }
+        catch {
+            throw new JWEInvalid('Failed to base64url decode the encrypted_key');
+        }
+    }
+    let resolvedKey = false;
+    if (typeof key === 'function') {
+        key = await key(parsedProt, jwe);
+        resolvedKey = true;
+    }
+    checkKeyType(alg === 'dir' ? enc : alg, key, 'decrypt');
+    const k = await normalizeKey(key, alg);
+    let cek;
+    try {
+        cek = await decryptKeyManagement(alg, k, encryptedKey, joseHeader, options);
+    }
+    catch (err) {
+        if (err instanceof TypeError || err instanceof JWEInvalid || err instanceof JOSENotSupported) {
+            throw err;
+        }
+        cek = generateCek(enc);
+    }
+    let iv;
+    let tag;
+    if (jwe.iv !== undefined) {
+        try {
+            iv = b64u(jwe.iv);
+        }
+        catch {
+            throw new JWEInvalid('Failed to base64url decode the iv');
+        }
+    }
+    if (jwe.tag !== undefined) {
+        try {
+            tag = b64u(jwe.tag);
+        }
+        catch {
+            throw new JWEInvalid('Failed to base64url decode the tag');
+        }
+    }
+    const protectedHeader = jwe.protected !== undefined ? encode(jwe.protected) : new Uint8Array();
+    let additionalData;
+    if (jwe.aad !== undefined) {
+        additionalData = concat(protectedHeader, encode('.'), encode(jwe.aad));
+    }
+    else {
+        additionalData = protectedHeader;
+    }
+    let ciphertext;
+    try {
+        ciphertext = b64u(jwe.ciphertext);
+    }
+    catch {
+        throw new JWEInvalid('Failed to base64url decode the ciphertext');
+    }
+    const plaintext = await decrypt(enc, cek, ciphertext, iv, tag, additionalData);
+    const result = { plaintext };
+    if (joseHeader.zip === 'DEF') {
+        const maxDecompressedLength = options?.maxDecompressedLength ?? 250_000;
+        if (maxDecompressedLength === 0) {
+            throw new JOSENotSupported('JWE "zip" (Compression Algorithm) Header Parameter is not supported.');
+        }
+        if (maxDecompressedLength !== Infinity &&
+            (!Number.isSafeInteger(maxDecompressedLength) || maxDecompressedLength < 1)) {
+            throw new TypeError('maxDecompressedLength must be 0, a positive safe integer, or Infinity');
+        }
+        result.plaintext = await decompress(plaintext, maxDecompressedLength);
+    }
+    if (jwe.protected !== undefined) {
+        result.protectedHeader = parsedProt;
+    }
+    if (jwe.aad !== undefined) {
+        try {
+            result.additionalAuthenticatedData = b64u(jwe.aad);
+        }
+        catch {
+            throw new JWEInvalid('Failed to base64url decode the aad');
+        }
+    }
+    if (jwe.unprotected !== undefined) {
+        result.sharedUnprotectedHeader = jwe.unprotected;
+    }
+    if (jwe.header !== undefined) {
+        result.unprotectedHeader = jwe.header;
+    }
+    if (resolvedKey) {
+        return { ...result, key: k };
+    }
+    return result;
+}

dev-assistant-mcp/node_modules/jose/dist/webapi/jwe/flattened/encrypt.js

@@ -0,0 +1,177 @@
+import { encode as b64u } from '../../util/base64url.js';
+import { unprotected } from '../../lib/private_symbols.js';
+import { encrypt } from '../../lib/encrypt.js';
+import { encryptKeyManagement } from '../../lib/encrypt_key_management.js';
+import { JOSENotSupported, JWEInvalid } from '../../util/errors.js';
+import { isDisjoint } from '../../lib/is_disjoint.js';
+import { concat, encode } from '../../lib/buffer_utils.js';
+import { validateCrit } from '../../lib/validate_crit.js';
+import { normalizeKey } from '../../lib/normalize_key.js';
+import { checkKeyType } from '../../lib/check_key_type.js';
+import { compress } from '../../lib/deflate.js';
+export class FlattenedEncrypt {
+    #plaintext;
+    #protectedHeader;
+    #sharedUnprotectedHeader;
+    #unprotectedHeader;
+    #aad;
+    #cek;
+    #iv;
+    #keyManagementParameters;
+    constructor(plaintext) {
+        if (!(plaintext instanceof Uint8Array)) {
+            throw new TypeError('plaintext must be an instance of Uint8Array');
+        }
+        this.#plaintext = plaintext;
+    }
+    setKeyManagementParameters(parameters) {
+        if (this.#keyManagementParameters) {
+            throw new TypeError('setKeyManagementParameters can only be called once');
+        }
+        this.#keyManagementParameters = parameters;
+        return this;
+    }
+    setProtectedHeader(protectedHeader) {
+        if (this.#protectedHeader) {
+            throw new TypeError('setProtectedHeader can only be called once');
+        }
+        this.#protectedHeader = protectedHeader;
+        return this;
+    }
+    setSharedUnprotectedHeader(sharedUnprotectedHeader) {
+        if (this.#sharedUnprotectedHeader) {
+            throw new TypeError('setSharedUnprotectedHeader can only be called once');
+        }
+        this.#sharedUnprotectedHeader = sharedUnprotectedHeader;
+        return this;
+    }
+    setUnprotectedHeader(unprotectedHeader) {
+        if (this.#unprotectedHeader) {
+            throw new TypeError('setUnprotectedHeader can only be called once');
+        }
+        this.#unprotectedHeader = unprotectedHeader;
+        return this;
+    }
+    setAdditionalAuthenticatedData(aad) {
+        this.#aad = aad;
+        return this;
+    }
+    setContentEncryptionKey(cek) {
+        if (this.#cek) {
+            throw new TypeError('setContentEncryptionKey can only be called once');
+        }
+        this.#cek = cek;
+        return this;
+    }
+    setInitializationVector(iv) {
+        if (this.#iv) {
+            throw new TypeError('setInitializationVector can only be called once');
+        }
+        this.#iv = iv;
+        return this;
+    }
+    async encrypt(key, options) {
+        if (!this.#protectedHeader && !this.#unprotectedHeader && !this.#sharedUnprotectedHeader) {
+            throw new JWEInvalid('either setProtectedHeader, setUnprotectedHeader, or sharedUnprotectedHeader must be called before #encrypt()');
+        }
+        if (!isDisjoint(this.#protectedHeader, this.#unprotectedHeader, this.#sharedUnprotectedHeader)) {
+            throw new JWEInvalid('JWE Protected, JWE Shared Unprotected and JWE Per-Recipient Header Parameter names must be disjoint');
+        }
+        const joseHeader = {
+            ...this.#protectedHeader,
+            ...this.#unprotectedHeader,
+            ...this.#sharedUnprotectedHeader,
+        };
+        validateCrit(JWEInvalid, new Map(), 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 { alg, enc } = joseHeader;
+        if (typeof alg !== 'string' || !alg) {
+            throw new JWEInvalid('JWE "alg" (Algorithm) Header Parameter missing or invalid');
+        }
+        if (typeof enc !== 'string' || !enc) {
+            throw new JWEInvalid('JWE "enc" (Encryption Algorithm) Header Parameter missing or invalid');
+        }
+        let encryptedKey;
+        if (this.#cek && (alg === 'dir' || alg === 'ECDH-ES')) {
+            throw new TypeError(`setContentEncryptionKey cannot be called with JWE "alg" (Algorithm) Header ${alg}`);
+        }
+        checkKeyType(alg === 'dir' ? enc : alg, key, 'encrypt');
+        let cek;
+        {
+            let parameters;
+            const k = await normalizeKey(key, alg);
+            ({ cek, encryptedKey, parameters } = await encryptKeyManagement(alg, enc, k, this.#cek, this.#keyManagementParameters));
+            if (parameters) {
+                if (options && unprotected in options) {
+                    if (!this.#unprotectedHeader) {
+                        this.setUnprotectedHeader(parameters);
+                    }
+                    else {
+                        this.#unprotectedHeader = { ...this.#unprotectedHeader, ...parameters };
+                    }
+                }
+                else if (!this.#protectedHeader) {
+                    this.setProtectedHeader(parameters);
+                }
+                else {
+                    this.#protectedHeader = { ...this.#protectedHeader, ...parameters };
+                }
+            }
+        }
+        let additionalData;
+        let protectedHeaderS;
+        let protectedHeaderB;
+        let aadMember;
+        if (this.#protectedHeader) {
+            protectedHeaderS = b64u(JSON.stringify(this.#protectedHeader));
+            protectedHeaderB = encode(protectedHeaderS);
+        }
+        else {
+            protectedHeaderS = '';
+            protectedHeaderB = new Uint8Array();
+        }
+        if (this.#aad) {
+            aadMember = b64u(this.#aad);
+            const aadMemberBytes = encode(aadMember);
+            additionalData = concat(protectedHeaderB, encode('.'), aadMemberBytes);
+        }
+        else {
+            additionalData = protectedHeaderB;
+        }
+        let plaintext = this.#plaintext;
+        if (joseHeader.zip === 'DEF') {
+            plaintext = await compress(plaintext);
+        }
+        const { ciphertext, tag, iv } = await encrypt(enc, plaintext, cek, this.#iv, additionalData);
+        const jwe = {
+            ciphertext: b64u(ciphertext),
+        };
+        if (iv) {
+            jwe.iv = b64u(iv);
+        }
+        if (tag) {
+            jwe.tag = b64u(tag);
+        }
+        if (encryptedKey) {
+            jwe.encrypted_key = b64u(encryptedKey);
+        }
+        if (aadMember) {
+            jwe.aad = aadMember;
+        }
+        if (this.#protectedHeader) {
+            jwe.protected = protectedHeaderS;
+        }
+        if (this.#sharedUnprotectedHeader) {
+            jwe.unprotected = this.#sharedUnprotectedHeader;
+        }
+        if (this.#unprotectedHeader) {
+            jwe.header = this.#unprotectedHeader;
+        }
+        return jwe;
+    }
+}