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node_modules/qs/lib/stringify.js

@@ -0,0 +1,210 @@
+'use strict';
+
+var utils = require('./utils');
+var formats = require('./formats');
+
+var arrayPrefixGenerators = {
+    brackets: function brackets(prefix) { // eslint-disable-line func-name-matching
+        return prefix + '[]';
+    },
+    indices: function indices(prefix, key) { // eslint-disable-line func-name-matching
+        return prefix + '[' + key + ']';
+    },
+    repeat: function repeat(prefix) { // eslint-disable-line func-name-matching
+        return prefix;
+    }
+};
+
+var toISO = Date.prototype.toISOString;
+
+var defaults = {
+    delimiter: '&',
+    encode: true,
+    encoder: utils.encode,
+    encodeValuesOnly: false,
+    serializeDate: function serializeDate(date) { // eslint-disable-line func-name-matching
+        return toISO.call(date);
+    },
+    skipNulls: false,
+    strictNullHandling: false
+};
+
+var stringify = function stringify( // eslint-disable-line func-name-matching
+    object,
+    prefix,
+    generateArrayPrefix,
+    strictNullHandling,
+    skipNulls,
+    encoder,
+    filter,
+    sort,
+    allowDots,
+    serializeDate,
+    formatter,
+    encodeValuesOnly
+) {
+    var obj = object;
+    if (typeof filter === 'function') {
+        obj = filter(prefix, obj);
+    } else if (obj instanceof Date) {
+        obj = serializeDate(obj);
+    } else if (obj === null) {
+        if (strictNullHandling) {
+            return encoder && !encodeValuesOnly ? encoder(prefix, defaults.encoder) : prefix;
+        }
+
+        obj = '';
+    }
+
+    if (typeof obj === 'string' || typeof obj === 'number' || typeof obj === 'boolean' || utils.isBuffer(obj)) {
+        if (encoder) {
+            var keyValue = encodeValuesOnly ? prefix : encoder(prefix, defaults.encoder);
+            return [formatter(keyValue) + '=' + formatter(encoder(obj, defaults.encoder))];
+        }
+        return [formatter(prefix) + '=' + formatter(String(obj))];
+    }
+
+    var values = [];
+
+    if (typeof obj === 'undefined') {
+        return values;
+    }
+
+    var objKeys;
+    if (Array.isArray(filter)) {
+        objKeys = filter;
+    } else {
+        var keys = Object.keys(obj);
+        objKeys = sort ? keys.sort(sort) : keys;
+    }
+
+    for (var i = 0; i < objKeys.length; ++i) {
+        var key = objKeys[i];
+
+        if (skipNulls && obj[key] === null) {
+            continue;
+        }
+
+        if (Array.isArray(obj)) {
+            values = values.concat(stringify(
+                obj[key],
+                generateArrayPrefix(prefix, key),
+                generateArrayPrefix,
+                strictNullHandling,
+                skipNulls,
+                encoder,
+                filter,
+                sort,
+                allowDots,
+                serializeDate,
+                formatter,
+                encodeValuesOnly
+            ));
+        } else {
+            values = values.concat(stringify(
+                obj[key],
+                prefix + (allowDots ? '.' + key : '[' + key + ']'),
+                generateArrayPrefix,
+                strictNullHandling,
+                skipNulls,
+                encoder,
+                filter,
+                sort,
+                allowDots,
+                serializeDate,
+                formatter,
+                encodeValuesOnly
+            ));
+        }
+    }
+
+    return values;
+};
+
+module.exports = function (object, opts) {
+    var obj = object;
+    var options = opts ? utils.assign({}, opts) : {};
+
+    if (options.encoder !== null && options.encoder !== undefined && typeof options.encoder !== 'function') {
+        throw new TypeError('Encoder has to be a function.');
+    }
+
+    var delimiter = typeof options.delimiter === 'undefined' ? defaults.delimiter : options.delimiter;
+    var strictNullHandling = typeof options.strictNullHandling === 'boolean' ? options.strictNullHandling : defaults.strictNullHandling;
+    var skipNulls = typeof options.skipNulls === 'boolean' ? options.skipNulls : defaults.skipNulls;
+    var encode = typeof options.encode === 'boolean' ? options.encode : defaults.encode;
+    var encoder = typeof options.encoder === 'function' ? options.encoder : defaults.encoder;
+    var sort = typeof options.sort === 'function' ? options.sort : null;
+    var allowDots = typeof options.allowDots === 'undefined' ? false : options.allowDots;
+    var serializeDate = typeof options.serializeDate === 'function' ? options.serializeDate : defaults.serializeDate;
+    var encodeValuesOnly = typeof options.encodeValuesOnly === 'boolean' ? options.encodeValuesOnly : defaults.encodeValuesOnly;
+    if (typeof options.format === 'undefined') {
+        options.format = formats['default'];
+    } else if (!Object.prototype.hasOwnProperty.call(formats.formatters, options.format)) {
+        throw new TypeError('Unknown format option provided.');
+    }
+    var formatter = formats.formatters[options.format];
+    var objKeys;
+    var filter;
+
+    if (typeof options.filter === 'function') {
+        filter = options.filter;
+        obj = filter('', obj);
+    } else if (Array.isArray(options.filter)) {
+        filter = options.filter;
+        objKeys = filter;
+    }
+
+    var keys = [];
+
+    if (typeof obj !== 'object' || obj === null) {
+        return '';
+    }
+
+    var arrayFormat;
+    if (options.arrayFormat in arrayPrefixGenerators) {
+        arrayFormat = options.arrayFormat;
+    } else if ('indices' in options) {
+        arrayFormat = options.indices ? 'indices' : 'repeat';
+    } else {
+        arrayFormat = 'indices';
+    }
+
+    var generateArrayPrefix = arrayPrefixGenerators[arrayFormat];
+
+    if (!objKeys) {
+        objKeys = Object.keys(obj);
+    }
+
+    if (sort) {
+        objKeys.sort(sort);
+    }
+
+    for (var i = 0; i < objKeys.length; ++i) {
+        var key = objKeys[i];
+
+        if (skipNulls && obj[key] === null) {
+            continue;
+        }
+
+        keys = keys.concat(stringify(
+            obj[key],
+            key,
+            generateArrayPrefix,
+            strictNullHandling,
+            skipNulls,
+            encode ? encoder : null,
+            filter,
+            sort,
+            allowDots,
+            serializeDate,
+            formatter,
+            encodeValuesOnly
+        ));
+    }
+
+    var joined = keys.join(delimiter);
+    var prefix = options.addQueryPrefix === true ? '?' : '';
+
+    return joined.length > 0 ? prefix + joined : '';
+};