1. class HTMLValidator {
  2. constructor(rateLimit = { limit: 10, interval: 1000 }) {
  3. this.rateLimit = rateLimit;
  4. this.lastRun = 0;
  5. this.queue = [];
  6. }
  8. validateHTML(html, conditions) {
  9. const now = Date.now();
  11. if (now - this.lastRun > this.rateLimit.interval) {
  12. this.lastRun = now;
  13. } else {
  14. this.queue.push({ html, conditions });
  15. return; // Rate limited, don't validate
  16. }
  18. this.validateQueue();
  19. this.runValidation(html, conditions).then(result => {
  20. console.log("Validation Result:", result);
  21. }).catch(err => {
  22. console.error("Validation Error:", err);
  23. });
  24. }
  26. validateQueue() {
  27. while (this.queue.length > 0) {
  28. const item = this.queue.shift();
  29. this.runValidation(item.html, item.conditions);
  30. }
  31. }
  34. runValidation(html, conditions) {
  35. return new Promise((resolve, reject) => {
  36. try {
  37. const parser = new DOMParser();
  38. const doc = parser.parseFromString(html, 'text/html');
  40. let allConditionsMet = true;
  41. for (const condition of conditions) {
  42. if (!condition(doc)) {
  43. allConditionsMet = false;
  44. break;
  45. }
  46. }
  48. resolve(allConditionsMet);
  50. } catch (error) {
  51. reject(error);
  52. }
  53. });
  54. }
  55. }
  58. // Example Condition Functions (can be extended)
  59. function hasTitle(doc) {
  60. return doc.title !== null && doc.title !== "";
  61. }
  63. function hasLink(doc) {
  64. const links = doc.getElementsByTagName('a');
  65. return links.length > 0;
  66. }
  68. function hasImage(doc) {
  69. const images = doc.getElementsByTagName('img');
  70. return images.length > 0;
  71. }
  74. // Usage Example:
  75. const validator = new HTMLValidator();
  77. const conditions = [hasTitle, hasLink, hasImage];
  79. const html1 = `
  80. <!DOCTYPE html>
  81. <html>
  82. <head>
  83. <title>My Page</title>
  84. <link rel="stylesheet" href="style.css">
  85. </head>
  86. <body>
  87. <h1>Hello World</h1>
  88. <p>This is a test.</p>
  89. <img src="image.jpg">
  90. </body>
  91. </html>
  92. `;
  94. const html2 = `
  95. <!DOCTYPE html>
  96. <html>
  97. <head>
  98. </head>
  99. <body>
  100. <h1>Hello World</h1>
  101. <p>This is a test.</p>
  102. </body>
  103. </html>
  104. `;
  107. validator.validateHTML(html1, conditions);
  108. validator.validateHTML(html2, conditions);
  109. validator.validateHTML(html1, conditions); //will be rate limited
  110. validator.validateHTML(html1, conditions); //will be rate limited

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