encode.js 2.0 KB

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  1. // Copyright Joyent, Inc. and other Node contributors.
  2. //
  3. // Permission is hereby granted, free of charge, to any person obtaining a
  4. // copy of this software and associated documentation files (the
  5. // "Software"), to deal in the Software without restriction, including
  6. // without limitation the rights to use, copy, modify, merge, publish,
  7. // distribute, sublicense, and/or sell copies of the Software, and to permit
  8. // persons to whom the Software is furnished to do so, subject to the
  9. // following conditions:
  10. //
  11. // The above copyright notice and this permission notice shall be included
  12. // in all copies or substantial portions of the Software.
  13. //
  14. // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  15. // OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  16. // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
  17. // NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
  18. // DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  19. // OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  20. // USE OR OTHER DEALINGS IN THE SOFTWARE.
  21. 'use strict';
  22. var stringifyPrimitive = function(v) {
  23. switch (typeof v) {
  24. case 'string':
  25. return v;
  26. case 'boolean':
  27. return v ? 'true' : 'false';
  28. case 'number':
  29. return isFinite(v) ? v : '';
  30. default:
  31. return '';
  32. }
  33. };
  34. module.exports = function(obj, sep, eq, name) {
  35. sep = sep || '&';
  36. eq = eq || '=';
  37. if (obj === null) {
  38. obj = undefined;
  39. }
  40. if (typeof obj === 'object') {
  41. return Object.keys(obj).map(function(k) {
  42. var ks = encodeURIComponent(stringifyPrimitive(k)) + eq;
  43. if (Array.isArray(obj[k])) {
  44. return obj[k].map(function(v) {
  45. return ks + encodeURIComponent(stringifyPrimitive(v));
  46. }).join(sep);
  47. } else {
  48. return ks + encodeURIComponent(stringifyPrimitive(obj[k]));
  49. }
  50. }).join(sep);
  51. }
  52. if (!name) return '';
  53. return encodeURIComponent(stringifyPrimitive(name)) + eq +
  54. encodeURIComponent(stringifyPrimitive(obj));
  55. };