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89 lines
2.9 KiB
89 lines
2.9 KiB
3 years ago
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data-uri-to-buffer
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==================
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### Generate a Buffer instance from a [Data URI][rfc] string
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[](https://travis-ci.org/TooTallNate/node-data-uri-to-buffer)
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This module accepts a ["data" URI][rfc] String of data, and returns a
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node.js `Buffer` instance with the decoded data.
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Installation
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------------
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Install with `npm`:
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``` bash
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$ npm install data-uri-to-buffer
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```
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Example
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-------
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``` js
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var dataUriToBuffer = require('data-uri-to-buffer');
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// plain-text data is supported
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var uri = 'data:,Hello%2C%20World!';
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var decoded = dataUriToBuffer(uri);
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console.log(decoded.toString());
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// 'Hello, World!'
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// base64-encoded data is supported
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uri = 'data:text/plain;base64,SGVsbG8sIFdvcmxkIQ%3D%3D';
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decoded = dataUriToBuffer(uri);
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console.log(decoded.toString());
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// 'Hello, World!'
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```
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API
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---
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### dataUriToBuffer(String uri) → Buffer
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The `type` property on the Buffer instance gets set to the main type portion of
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the "mediatype" portion of the "data" URI, or defaults to `"text/plain"` if not
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specified.
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The `typeFull` property on the Buffer instance gets set to the entire
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"mediatype" portion of the "data" URI (including all parameters), or defaults
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to `"text/plain;charset=US-ASCII"` if not specified.
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The `charset` property on the Buffer instance gets set to the Charset portion of
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the "mediatype" portion of the "data" URI, or defaults to `"US-ASCII"` if the
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entire type is not specified, or defaults to `""` otherwise.
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*Note*: If the only the main type is specified but not the charset, e.g.
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`"data:text/plain,abc"`, the charset is set to the empty string. The spec only
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defaults to US-ASCII as charset if the entire type is not specified.
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License
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-------
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(The MIT License)
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Copyright (c) 2014 Nathan Rajlich <nathan@tootallnate.net>
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Permission is hereby granted, free of charge, to any person obtaining
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a copy of this software and associated documentation files (the
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'Software'), to deal in the Software without restriction, including
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without limitation the rights to use, copy, modify, merge, publish,
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distribute, sublicense, and/or sell copies of the Software, and to
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permit persons to whom the Software is furnished to do so, subject to
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the following conditions:
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The above copyright notice and this permission notice shall be
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included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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[rfc]: http://tools.ietf.org/html/rfc2397
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