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Diffstat (limited to 'together/node_modules/qs/lib/stringify.js')
-rw-r--r-- | together/node_modules/qs/lib/stringify.js | 326 |
1 files changed, 326 insertions, 0 deletions
diff --git a/together/node_modules/qs/lib/stringify.js b/together/node_modules/qs/lib/stringify.js new file mode 100644 index 0000000..48ec030 --- /dev/null +++ b/together/node_modules/qs/lib/stringify.js @@ -0,0 +1,326 @@ +'use strict'; + +var getSideChannel = require('side-channel'); +var utils = require('./utils'); +var formats = require('./formats'); +var has = Object.prototype.hasOwnProperty; + +var arrayPrefixGenerators = { + brackets: function brackets(prefix) { + return prefix + '[]'; + }, + comma: 'comma', + indices: function indices(prefix, key) { + return prefix + '[' + key + ']'; + }, + repeat: function repeat(prefix) { + return prefix; + } +}; + +var isArray = Array.isArray; +var split = String.prototype.split; +var push = Array.prototype.push; +var pushToArray = function (arr, valueOrArray) { + push.apply(arr, isArray(valueOrArray) ? valueOrArray : [valueOrArray]); +}; + +var toISO = Date.prototype.toISOString; + +var defaultFormat = formats['default']; +var defaults = { + addQueryPrefix: false, + allowDots: false, + charset: 'utf-8', + charsetSentinel: false, + delimiter: '&', + encode: true, + encoder: utils.encode, + encodeValuesOnly: false, + format: defaultFormat, + formatter: formats.formatters[defaultFormat], + // deprecated + indices: false, + serializeDate: function serializeDate(date) { + return toISO.call(date); + }, + skipNulls: false, + strictNullHandling: false +}; + +var isNonNullishPrimitive = function isNonNullishPrimitive(v) { + return typeof v === 'string' + || typeof v === 'number' + || typeof v === 'boolean' + || typeof v === 'symbol' + || typeof v === 'bigint'; +}; + +var sentinel = {}; + +var stringify = function stringify( + object, + prefix, + generateArrayPrefix, + commaRoundTrip, + strictNullHandling, + skipNulls, + encoder, + filter, + sort, + allowDots, + serializeDate, + format, + formatter, + encodeValuesOnly, + charset, + sideChannel +) { + var obj = object; + + var tmpSc = sideChannel; + var step = 0; + var findFlag = false; + while ((tmpSc = tmpSc.get(sentinel)) !== void undefined && !findFlag) { + // Where object last appeared in the ref tree + var pos = tmpSc.get(object); + step += 1; + if (typeof pos !== 'undefined') { + if (pos === step) { + throw new RangeError('Cyclic object value'); + } else { + findFlag = true; // Break while + } + } + if (typeof tmpSc.get(sentinel) === 'undefined') { + step = 0; + } + } + + if (typeof filter === 'function') { + obj = filter(prefix, obj); + } else if (obj instanceof Date) { + obj = serializeDate(obj); + } else if (generateArrayPrefix === 'comma' && isArray(obj)) { + obj = utils.maybeMap(obj, function (value) { + if (value instanceof Date) { + return serializeDate(value); + } + return value; + }); + } + + if (obj === null) { + if (strictNullHandling) { + return encoder && !encodeValuesOnly ? encoder(prefix, defaults.encoder, charset, 'key', format) : prefix; + } + + obj = ''; + } + + if (isNonNullishPrimitive(obj) || utils.isBuffer(obj)) { + if (encoder) { + var keyValue = encodeValuesOnly ? prefix : encoder(prefix, defaults.encoder, charset, 'key', format); + if (generateArrayPrefix === 'comma' && encodeValuesOnly) { + var valuesArray = split.call(String(obj), ','); + var valuesJoined = ''; + for (var i = 0; i < valuesArray.length; ++i) { + valuesJoined += (i === 0 ? '' : ',') + formatter(encoder(valuesArray[i], defaults.encoder, charset, 'value', format)); + } + return [formatter(keyValue) + (commaRoundTrip && isArray(obj) && valuesArray.length === 1 ? '[]' : '') + '=' + valuesJoined]; + } + return [formatter(keyValue) + '=' + formatter(encoder(obj, defaults.encoder, charset, 'value', format))]; + } + return [formatter(prefix) + '=' + formatter(String(obj))]; + } + + var values = []; + + if (typeof obj === 'undefined') { + return values; + } + + var objKeys; + if (generateArrayPrefix === 'comma' && isArray(obj)) { + // we need to join elements in + objKeys = [{ value: obj.length > 0 ? obj.join(',') || null : void undefined }]; + } else if (isArray(filter)) { + objKeys = filter; + } else { + var keys = Object.keys(obj); + objKeys = sort ? keys.sort(sort) : keys; + } + + var adjustedPrefix = commaRoundTrip && isArray(obj) && obj.length === 1 ? prefix + '[]' : prefix; + + for (var j = 0; j < objKeys.length; ++j) { + var key = objKeys[j]; + var value = typeof key === 'object' && typeof key.value !== 'undefined' ? key.value : obj[key]; + + if (skipNulls && value === null) { + continue; + } + + var keyPrefix = isArray(obj) + ? typeof generateArrayPrefix === 'function' ? generateArrayPrefix(adjustedPrefix, key) : adjustedPrefix + : adjustedPrefix + (allowDots ? '.' + key : '[' + key + ']'); + + sideChannel.set(object, step); + var valueSideChannel = getSideChannel(); + valueSideChannel.set(sentinel, sideChannel); + pushToArray(values, stringify( + value, + keyPrefix, + generateArrayPrefix, + commaRoundTrip, + strictNullHandling, + skipNulls, + encoder, + filter, + sort, + allowDots, + serializeDate, + format, + formatter, + encodeValuesOnly, + charset, + valueSideChannel + )); + } + + return values; +}; + +var normalizeStringifyOptions = function normalizeStringifyOptions(opts) { + if (!opts) { + return defaults; + } + + if (opts.encoder !== null && typeof opts.encoder !== 'undefined' && typeof opts.encoder !== 'function') { + throw new TypeError('Encoder has to be a function.'); + } + + var charset = opts.charset || defaults.charset; + if (typeof opts.charset !== 'undefined' && opts.charset !== 'utf-8' && opts.charset !== 'iso-8859-1') { + throw new TypeError('The charset option must be either utf-8, iso-8859-1, or undefined'); + } + + var format = formats['default']; + if (typeof opts.format !== 'undefined') { + if (!has.call(formats.formatters, opts.format)) { + throw new TypeError('Unknown format option provided.'); + } + format = opts.format; + } + var formatter = formats.formatters[format]; + + var filter = defaults.filter; + if (typeof opts.filter === 'function' || isArray(opts.filter)) { + filter = opts.filter; + } + + return { + addQueryPrefix: typeof opts.addQueryPrefix === 'boolean' ? opts.addQueryPrefix : defaults.addQueryPrefix, + allowDots: typeof opts.allowDots === 'undefined' ? defaults.allowDots : !!opts.allowDots, + charset: charset, + charsetSentinel: typeof opts.charsetSentinel === 'boolean' ? opts.charsetSentinel : defaults.charsetSentinel, + delimiter: typeof opts.delimiter === 'undefined' ? defaults.delimiter : opts.delimiter, + encode: typeof opts.encode === 'boolean' ? opts.encode : defaults.encode, + encoder: typeof opts.encoder === 'function' ? opts.encoder : defaults.encoder, + encodeValuesOnly: typeof opts.encodeValuesOnly === 'boolean' ? opts.encodeValuesOnly : defaults.encodeValuesOnly, + filter: filter, + format: format, + formatter: formatter, + serializeDate: typeof opts.serializeDate === 'function' ? opts.serializeDate : defaults.serializeDate, + skipNulls: typeof opts.skipNulls === 'boolean' ? opts.skipNulls : defaults.skipNulls, + sort: typeof opts.sort === 'function' ? opts.sort : null, + strictNullHandling: typeof opts.strictNullHandling === 'boolean' ? opts.strictNullHandling : defaults.strictNullHandling + }; +}; + +module.exports = function (object, opts) { + var obj = object; + var options = normalizeStringifyOptions(opts); + + var objKeys; + var filter; + + if (typeof options.filter === 'function') { + filter = options.filter; + obj = filter('', obj); + } else if (isArray(options.filter)) { + filter = options.filter; + objKeys = filter; + } + + var keys = []; + + if (typeof obj !== 'object' || obj === null) { + return ''; + } + + var arrayFormat; + if (opts && opts.arrayFormat in arrayPrefixGenerators) { + arrayFormat = opts.arrayFormat; + } else if (opts && 'indices' in opts) { + arrayFormat = opts.indices ? 'indices' : 'repeat'; + } else { + arrayFormat = 'indices'; + } + + var generateArrayPrefix = arrayPrefixGenerators[arrayFormat]; + if (opts && 'commaRoundTrip' in opts && typeof opts.commaRoundTrip !== 'boolean') { + throw new TypeError('`commaRoundTrip` must be a boolean, or absent'); + } + var commaRoundTrip = generateArrayPrefix === 'comma' && opts && opts.commaRoundTrip; + + if (!objKeys) { + objKeys = Object.keys(obj); + } + + if (options.sort) { + objKeys.sort(options.sort); + } + + var sideChannel = getSideChannel(); + for (var i = 0; i < objKeys.length; ++i) { + var key = objKeys[i]; + + if (options.skipNulls && obj[key] === null) { + continue; + } + pushToArray(keys, stringify( + obj[key], + key, + generateArrayPrefix, + commaRoundTrip, + options.strictNullHandling, + options.skipNulls, + options.encode ? options.encoder : null, + options.filter, + options.sort, + options.allowDots, + options.serializeDate, + options.format, + options.formatter, + options.encodeValuesOnly, + options.charset, + sideChannel + )); + } + + var joined = keys.join(options.delimiter); + var prefix = options.addQueryPrefix === true ? '?' : ''; + + if (options.charsetSentinel) { + if (options.charset === 'iso-8859-1') { + // encodeURIComponent('✓'), the "numeric entity" representation of a checkmark + prefix += 'utf8=%26%2310003%3B&'; + } else { + // encodeURIComponent('✓') + prefix += 'utf8=%E2%9C%93&'; + } + } + + return joined.length > 0 ? prefix + joined : ''; +}; |