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