122 lines
3.8 KiB
JavaScript
122 lines
3.8 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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'use strict';
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module.metadata = {
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"stability": "unstable"
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};
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var unescape = decodeURIComponent;
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exports.unescape = unescape;
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// encodes a string safely for application/x-www-form-urlencoded
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// adheres to RFC 3986
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// see https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/encodeURIComponent
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function escape(query) {
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return encodeURIComponent(query).
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replace(/%20/g, '+').
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replace(/!/g, '%21').
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replace(/'/g, '%27').
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replace(/\(/g, '%28').
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replace(/\)/g, '%29').
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replace(/\*/g, '%2A');
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}
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exports.escape = escape;
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// Converts an object of unordered key-vals to a string that can be passed
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// as part of a request
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function stringify(options, separator, assigner) {
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separator = separator || '&';
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assigner = assigner || '=';
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// Explicitly return null if we have null, and empty string, or empty object.
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if (!options)
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return '';
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// If content is already a string, just return it as is.
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if (typeof(options) == 'string')
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return options;
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// At this point we have a k:v object. Iterate over it and encode each value.
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// Arrays and nested objects will get encoded as needed. For example...
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//
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// { foo: [1, 2, { omg: 'bbq', 'all your base!': 'are belong to us' }], bar: 'baz' }
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//
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// will be encoded as
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//
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// foo[0]=1&foo[1]=2&foo[2][omg]=bbq&foo[2][all+your+base!]=are+belong+to+us&bar=baz
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//
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// Keys (including '[' and ']') and values will be encoded with
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// `escape` before returning.
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//
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// Execution was inspired by jQuery, but some details have changed and numeric
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// array keys are included (whereas they are not in jQuery).
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let encodedContent = [];
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function add(key, val) {
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encodedContent.push(escape(key) + assigner + escape(val));
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}
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function make(key, value) {
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if (value && typeof(value) === 'object')
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Object.keys(value).forEach(function(name) {
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make(key + '[' + name + ']', value[name]);
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});
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else
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add(key, value);
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}
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Object.keys(options).forEach(function(name) { make(name, options[name]); });
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return encodedContent.join(separator);
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//XXXzpao In theory, we can just use a FormData object on 1.9.3, but I had
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// trouble getting that working. It would also be nice to stay
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// backwards-compat as long as possible. Keeping this in for now...
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// let formData = Cc['@mozilla.org/files/formdata;1'].
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// createInstance(Ci.nsIDOMFormData);
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// for ([k, v] in Iterator(content)) {
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// formData.append(k, v);
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// }
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// return formData;
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}
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exports.stringify = stringify;
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// Exporting aliases that nodejs implements just for the sake of
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// interoperability.
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exports.encode = stringify;
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exports.serialize = stringify;
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// Note: That `stringify` and `parse` aren't bijective as we use `stringify`
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// as it was implement in request module, but implement `parse` to match nodejs
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// behavior.
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// TODO: Make `stringify` implement API as in nodejs and figure out backwards
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// compatibility.
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function parse(query, separator, assigner) {
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separator = separator || '&';
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assigner = assigner || '=';
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let result = {};
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if (typeof query !== 'string' || query.length === 0)
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return result;
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query.split(separator).forEach(function(chunk) {
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let pair = chunk.split(assigner);
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let key = unescape(pair[0]);
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let value = unescape(pair.slice(1).join(assigner));
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if (!(key in result))
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result[key] = value;
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else if (Array.isArray(result[key]))
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result[key].push(value);
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else
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result[key] = [result[key], value];
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});
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return result;
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};
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exports.parse = parse;
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// Exporting aliases that nodejs implements just for the sake of
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// interoperability.
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exports.decode = parse;
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