node_modules: update (#322)

Co-authored-by: dawidd6 <9713907+dawidd6@users.noreply.github.com>
2026-09-17 09:06:48 +07:00 · 2026-09-15 13:00:32 +02:00
parent 4a3d0f9ca3
commit 67ce3558d6
174 changed files with 25661 additions and 5540 deletions
@@ -0,0 +1,148 @@
+"use strict";
+// streams through a message body and calculates relaxed body hash
+var __importDefault = (this && this.__importDefault) || function (mod) {
+    return (mod && mod.__esModule) ? mod : { "default": mod };
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+const node_stream_1 = require("node:stream");
+const node_crypto_1 = __importDefault(require("node:crypto"));
+const CHAR_CR = 0x0d;
+const CHAR_LF = 0x0a;
+const CHAR_SPACE = 0x20;
+const CHAR_TAB = 0x09;
+const CRLF = Buffer.from('\r\n');
+// a run of empty lines is hashed from this buffer in slices
+const EMPTY_LINES = Buffer.alloc(4096, CRLF);
+/**
+ * Passes the message body through unchanged and hashes its relaxed
+ * canonicalization (RFC 6376 section 3.4.4) on the side: whitespace at the end
+ * of a line is dropped, runs of whitespace within a line become a single space,
+ * every line ends with CRLF, empty lines at the end of the body are ignored and
+ * a non-empty body always ends with CRLF. Bytes are canonicalized as they arrive,
+ * so a line of any length costs constant memory.
+ */
+class RelaxedBody extends node_stream_1.Transform {
+    constructor(options) {
+        super();
+        options = options || {};
+        this.bodyHash = node_crypto_1.default.createHash(options.hashAlgo || 'sha256');
+        this.byteLength = 0;
+        this.debug = options.debug;
+        this._debugBody = options.debug ? [] : false;
+        this._lineHasContent = false;
+        this._pendingWsp = false;
+        this._pendingCr = false;
+        this._pendingEmptyLines = 0;
+    }
+    /** @internal */
+    _hashCanonical(data) {
+        if (!data.length) {
+            return;
+        }
+        this.bodyHash.update(data);
+        if (this._debugBody) {
+            this._debugBody.push(Buffer.from(data));
+        }
+    }
+    /** @internal */
+    _hashEmptyLines() {
+        while (this._pendingEmptyLines > 0) {
+            const count = Math.min(this._pendingEmptyLines, EMPTY_LINES.length / 2);
+            this._hashCanonical(EMPTY_LINES.subarray(0, count * 2));
+            this._pendingEmptyLines -= count;
+        }
+    }
+    /**
+     * Writes a content byte, with the space a pending run of whitespace collapses to,
+     * into the output buffer and returns the new write position. Kept a method rather
+     * than a closure so the write position stays a plain local in the byte loop
+     * @internal
+     */
+    _emitContent(out, outPos, c) {
+        if (!this._lineHasContent) {
+            if (this._pendingEmptyLines) {
+                // the first content byte of a line is where the empty lines before it
+                // become part of the body, so hash what is in the buffer before them
+                this._hashCanonical(out.subarray(0, outPos));
+                outPos = 0;
+                this._hashEmptyLines();
+            }
+            this._lineHasContent = true;
+        }
+        if (this._pendingWsp) {
+            out[outPos++] = CHAR_SPACE;
+            this._pendingWsp = false;
+        }
+        out[outPos++] = c;
+        return outPos;
+    }
+    updateHash(chunk, final) {
+        // every byte contributes itself at most once, plus a CR for a bare LF
+        // and, once per chunk, a pending space and CR carried over from before
+        const out = Buffer.allocUnsafe(chunk.length * 2 + 2);
+        let outPos = 0;
+        for (let i = 0; i < chunk.length; i++) {
+            const c = chunk[i];
+            if (c === CHAR_LF) {
+                // end of line, a CR right before it and any trailing whitespace are dropped
+                if (this._lineHasContent) {
+                    out[outPos++] = CHAR_CR;
+                    out[outPos++] = CHAR_LF;
+                    this._lineHasContent = false;
+                }
+                else {
+                    this._pendingEmptyLines++;
+                }
+                this._pendingWsp = false;
+                this._pendingCr = false;
+                continue;
+            }
+            if (this._pendingCr) {
+                // not followed by LF, so the CR is content
+                outPos = this._emitContent(out, outPos, CHAR_CR);
+                this._pendingCr = false;
+            }
+            if (c === CHAR_CR) {
+                this._pendingCr = true;
+            }
+            else if (c === CHAR_SPACE || c === CHAR_TAB) {
+                this._pendingWsp = true;
+            }
+            else {
+                outPos = this._emitContent(out, outPos, c);
+            }
+        }
+        if (final && this._pendingCr) {
+            // a CR at the very end of the body is content
+            outPos = this._emitContent(out, outPos, CHAR_CR);
+            this._pendingCr = false;
+        }
+        this._hashCanonical(out.subarray(0, outPos));
+    }
+    /** @internal */
+    _transform(chunk, encoding, callback) {
+        if (!chunk || !chunk.length) {
+            return callback();
+        }
+        if (typeof chunk === 'string') {
+            chunk = Buffer.from(chunk, encoding);
+        }
+        this.updateHash(chunk);
+        this.byteLength += chunk.length;
+        this.push(chunk);
+        callback();
+    }
+    /** @internal */
+    _flush(callback) {
+        this.updateHash(Buffer.alloc(0), true);
+        if (this._lineHasContent) {
+            // the body does not end with a line break, add one
+            this._hashCanonical(CRLF);
+        }
+        this.emit('hash', this.bodyHash.digest('base64'), this.debug ? Buffer.concat(this._debugBody) : false);
+        callback();
+    }
+}
+exports.default = RelaxedBody;
+module.exports = exports.default;
+Object.defineProperty(module.exports, 'default', { value: exports.default, enumerable: false, writable: true, configurable: true });