diff options
Diffstat (limited to 'backend/node_modules/jws/lib/data-stream.js')
-rw-r--r-- | backend/node_modules/jws/lib/data-stream.js | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/backend/node_modules/jws/lib/data-stream.js b/backend/node_modules/jws/lib/data-stream.js new file mode 100644 index 0000000..3535d31 --- /dev/null +++ b/backend/node_modules/jws/lib/data-stream.js @@ -0,0 +1,55 @@ +/*global module, process*/ +var Buffer = require('safe-buffer').Buffer; +var Stream = require('stream'); +var util = require('util'); + +function DataStream(data) { + this.buffer = null; + this.writable = true; + this.readable = true; + + // No input + if (!data) { + this.buffer = Buffer.alloc(0); + return this; + } + + // Stream + if (typeof data.pipe === 'function') { + this.buffer = Buffer.alloc(0); + data.pipe(this); + return this; + } + + // Buffer or String + // or Object (assumedly a passworded key) + if (data.length || typeof data === 'object') { + this.buffer = data; + this.writable = false; + process.nextTick(function () { + this.emit('end', data); + this.readable = false; + this.emit('close'); + }.bind(this)); + return this; + } + + throw new TypeError('Unexpected data type ('+ typeof data + ')'); +} +util.inherits(DataStream, Stream); + +DataStream.prototype.write = function write(data) { + this.buffer = Buffer.concat([this.buffer, Buffer.from(data)]); + this.emit('data', data); +}; + +DataStream.prototype.end = function end(data) { + if (data) + this.write(data); + this.emit('end', data); + this.emit('close'); + this.writable = false; + this.readable = false; +}; + +module.exports = DataStream; |