@blockfrost/blockfrost-utils - npm Package Compare versions

Comparing version 2.1.0 to 2.1.1-beta.0

lib/cip68.d.ts

@@ -6,2 +6,13 @@ /// <reference types="node" />
 }
+/**
+ * https://github.com/websockets/utf-8-validate/blob/master/fallback.js
+ * Checks if a given buffer contains only correct UTF-8.
+ * Ported from https://www.cl.cam.ac.uk/%7Emgk25/ucs/utf8_check.c by
+ * Markus Kuhn.
+ *
+ * @param {Buffer} buf The buffer to check
+ * @return {Boolean} `true` if `buf` contains only correct UTF-8, else `false`
+ * @public
+ */
+export declare const isValidUTF8: (buf: Buffer) => boolean;
 export declare const toUTF8OrHex: (hexOrBuffer: string | Buffer) => string;
@@ -8,0 +19,0 @@ export declare const toLabel: (number_: number) => string;

lib/cip68.js

@@ -29,6 +29,5 @@ "use strict";
 Object.defineProperty(exports, "__esModule", { value: true });
-exports.getMetadataFromOutputDatum = exports.getReferenceNFT = exports.toCip68Assets = exports.fromLabel = exports.toLabel = exports.toUTF8OrHex = void 0;
+exports.getMetadataFromOutputDatum = exports.getReferenceNFT = exports.toCip68Assets = exports.fromLabel = exports.toLabel = exports.toUTF8OrHex = exports.isValidUTF8 = void 0;
 const CardanoWasm = __importStar(require("@emurgo/cardano-serialization-lib-nodejs"));
 const crc8_1 = __importDefault(require("crc/crc8"));
-const utf_8_validate_1 = __importDefault(require("utf-8-validate"));
 const cbor_1 = __importDefault(require("cbor"));
@@ -40,2 +39,63 @@ const ASSET_NAME_LABELS = {
 };
+/**
+ * https://github.com/websockets/utf-8-validate/blob/master/fallback.js
+ * Checks if a given buffer contains only correct UTF-8.
+ * Ported from https://www.cl.cam.ac.uk/%7Emgk25/ucs/utf8_check.c by
+ * Markus Kuhn.
+ *
+ * @param {Buffer} buf The buffer to check
+ * @return {Boolean} `true` if `buf` contains only correct UTF-8, else `false`
+ * @public
+ */
+const isValidUTF8 = (buf) => {
+    const len = buf.length;
+    let i = 0;
+    while (i < len) {
+        if ((buf[i] & 0x80) === 0x00) {
+            // 0xxxxxxx
+            i++;
+        }
+        else if ((buf[i] & 0xe0) === 0xc0) {
+            // 110xxxxx 10xxxxxx
+            if (i + 1 === len ||
+                (buf[i + 1] & 0xc0) !== 0x80 ||
+                (buf[i] & 0xfe) === 0xc0 // overlong
+            ) {
+                return false;
+            }
+            i += 2;
+        }
+        else if ((buf[i] & 0xf0) === 0xe0) {
+            // 1110xxxx 10xxxxxx 10xxxxxx
+            if (i + 2 >= len ||
+                (buf[i + 1] & 0xc0) !== 0x80 ||
+                (buf[i + 2] & 0xc0) !== 0x80 ||
+                (buf[i] === 0xe0 && (buf[i + 1] & 0xe0) === 0x80) || // overlong
+                (buf[i] === 0xed && (buf[i + 1] & 0xe0) === 0xa0) // surrogate (U+D800 - U+DFFF)
+            ) {
+                return false;
+            }
+            i += 3;
+        }
+        else if ((buf[i] & 0xf8) === 0xf0) {
+            // 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
+            if (i + 3 >= len ||
+                (buf[i + 1] & 0xc0) !== 0x80 ||
+                (buf[i + 2] & 0xc0) !== 0x80 ||
+                (buf[i + 3] & 0xc0) !== 0x80 ||
+                (buf[i] === 0xf0 && (buf[i + 1] & 0xf0) === 0x80) || // overlong
+                (buf[i] === 0xf4 && buf[i + 1] > 0x8f) ||
+                buf[i] > 0xf4 // > U+10FFFF
+            ) {
+                return false;
+            }
+            i += 4;
+        }
+        else {
+            return false;
+        }
+    }
+    return true;
+};
+exports.isValidUTF8 = isValidUTF8;
 const hexToString = (input) => {
@@ -68,3 +128,3 @@ const hex = input.toString();
         : Buffer.from(hexOrBuffer, 'hex');
-    return (0, utf_8_validate_1.default)(buffer) ? buffer.toString('utf8') : buffer.toString('hex');
+    return (0, exports.isValidUTF8)(buffer) ? buffer.toString('utf8') : buffer.toString('hex');
 };
@@ -71,0 +131,0 @@ exports.toUTF8OrHex = toUTF8OrHex;

package.json

 {
   "name": "@blockfrost/blockfrost-utils",
-  "version": "2.1.0",
+  "version": "2.1.1-beta.0",
   "repository": "[e-mail]:blockfrost/blockfrost-utils.git",
@@ -26,3 +26,2 @@ "license": "Apache-2.0",
     "crc": "^4.2.0",
-    "utf-8-validate": "^5.0.10",
     "yaml": "^2.1.1"
@@ -29,0 +28,0 @@ },

New alerts

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License

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Found 1 instance in 1 package

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Quality

Package is not semver >=1. This means it is not stable and does not support ^ ranges.

Found 1 instance in 1 package

Fixed alerts

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License

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Improved metrics

Total package byte prevSize

49043

increased by4.98%

Dependency count

5

decreased by-16.67%

Lines of code

866

increased by8.93%

Worsened metrics

Number of low quality alerts

2

increased by100%

Dependency changes

• - Removedutf-8-validate@^5.0.10

• - Removednode-gyp-build@4.8.4(transitive)

• - Removedutf-8-validate@5.0.10(transitive)