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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-21 20:56:20 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-21 20:56:20 +0000
commit868522aa377a4519adb0b9f402586ab7a41b86ba (patch)
tree44e805e154a3ace9bd8dbac73843e80d296b7814 /debian/tests/test_modules/dicer/lib/HeaderParser.js
parentAdding upstream version 5.28.2+dfsg1+~cs23.11.12.3. (diff)
downloadnode-undici-868522aa377a4519adb0b9f402586ab7a41b86ba.tar.xz
node-undici-868522aa377a4519adb0b9f402586ab7a41b86ba.zip
Adding debian version 5.28.2+dfsg1+~cs23.11.12.3-6.debian/5.28.2+dfsg1+_cs23.11.12.3-6debian
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'debian/tests/test_modules/dicer/lib/HeaderParser.js')
-rw-r--r--debian/tests/test_modules/dicer/lib/HeaderParser.js110
1 files changed, 110 insertions, 0 deletions
diff --git a/debian/tests/test_modules/dicer/lib/HeaderParser.js b/debian/tests/test_modules/dicer/lib/HeaderParser.js
new file mode 100644
index 0000000..8ccb6e5
--- /dev/null
+++ b/debian/tests/test_modules/dicer/lib/HeaderParser.js
@@ -0,0 +1,110 @@
+var EventEmitter = require('events').EventEmitter,
+ inherits = require('util').inherits;
+
+var StreamSearch = require('streamsearch');
+
+var B_DCRLF = Buffer.from('\r\n\r\n'),
+ RE_CRLF = /\r\n/g,
+ RE_HDR = /^([^:]+):[ \t]?([\x00-\xFF]+)?$/,
+ MAX_HEADER_PAIRS = 2000, // from node's http.js
+ MAX_HEADER_SIZE = 80 * 1024; // from node's http_parser
+
+function HeaderParser(cfg) {
+ EventEmitter.call(this);
+
+ var self = this;
+ this.nread = 0;
+ this.maxed = false;
+ this.npairs = 0;
+ this.maxHeaderPairs = (cfg && typeof cfg.maxHeaderPairs === 'number'
+ ? cfg.maxHeaderPairs
+ : MAX_HEADER_PAIRS);
+ this.buffer = '';
+ this.header = {};
+ this.finished = false;
+ this.ss = new StreamSearch(B_DCRLF);
+ this.ss.on('info', function(isMatch, data, start, end) {
+ if (data && !self.maxed) {
+ if (self.nread + (end - start) > MAX_HEADER_SIZE) {
+ end = (MAX_HEADER_SIZE - self.nread);
+ self.nread = MAX_HEADER_SIZE;
+ } else
+ self.nread += (end - start);
+
+ if (self.nread === MAX_HEADER_SIZE)
+ self.maxed = true;
+
+ self.buffer += data.toString('binary', start, end);
+ }
+ if (isMatch)
+ self._finish();
+ });
+}
+inherits(HeaderParser, EventEmitter);
+
+HeaderParser.prototype.push = function(data) {
+ var r = this.ss.push(data);
+ if (this.finished)
+ return r;
+};
+
+HeaderParser.prototype.reset = function() {
+ this.finished = false;
+ this.buffer = '';
+ this.header = {};
+ this.ss.reset();
+};
+
+HeaderParser.prototype._finish = function() {
+ if (this.buffer)
+ this._parseHeader();
+ this.ss.matches = this.ss.maxMatches;
+ var header = this.header;
+ this.header = {};
+ this.buffer = '';
+ this.finished = true;
+ this.nread = this.npairs = 0;
+ this.maxed = false;
+ this.emit('header', header);
+};
+
+HeaderParser.prototype._parseHeader = function() {
+ if (this.npairs === this.maxHeaderPairs)
+ return;
+
+ var lines = this.buffer.split(RE_CRLF), len = lines.length, m, h,
+ modded = false;
+
+ for (var i = 0; i < len; ++i) {
+ if (lines[i].length === 0)
+ continue;
+ if (lines[i][0] === '\t' || lines[i][0] === ' ') {
+ // folded header content
+ // RFC2822 says to just remove the CRLF and not the whitespace following
+ // it, so we follow the RFC and include the leading whitespace ...
+ this.header[h][this.header[h].length - 1] += lines[i];
+ } else {
+ m = RE_HDR.exec(lines[i]);
+ if (m) {
+ h = m[1].toLowerCase();
+ if (m[2]) {
+ if (this.header[h] === undefined)
+ this.header[h] = [m[2]];
+ else
+ this.header[h].push(m[2]);
+ } else
+ this.header[h] = [''];
+ if (++this.npairs === this.maxHeaderPairs)
+ break;
+ } else {
+ this.buffer = lines[i];
+ modded = true;
+ break;
+ }
+ }
+ }
+ if (!modded)
+ this.buffer = '';
+};
+
+module.exports = HeaderParser;