sgf-gstin-validator - npm Package Compare versions

Comparing version 1.0.2 to 1.0.3

dist/gstin-validator.js

@@ -27,6 +27,6 @@ /*
   \**********************/
-/***/ ((module, __unused_webpack_exports, __webpack_require__) => {
+/***/ ((module, __webpack_exports__, __webpack_require__) => {
 
 "use strict";
-eval("\n\nvar jwt = __webpack_require__(/*! jsonwebtoken */ \"?d57b\");\nvar certs = __webpack_require__(/*! ./certs */ \"./src/certs.js\");\n\nfunction calcCheckSum(gstin) {\n  var GSTN_CODEPOINT_CHARS = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ';\n  var factor = 2;\n  var sum = 0;\n  var checkCodePoint = 0;\n  var mod = GSTN_CODEPOINT_CHARS.length;\n  var i;\n\n  for (i = gstin.length - 2; i >= 0; i--) {\n    var codePoint = -1;\n    for (var j = 0; j < GSTN_CODEPOINT_CHARS.length; j++) {\n      if (GSTN_CODEPOINT_CHARS[j] === gstin[i]) {\n        codePoint = j;\n      }\n    }\n    var digit = factor * codePoint;\n    factor = factor === 2 ? 1 : 2;\n    digit = Math.floor(digit / mod) + (digit % mod);\n    sum += digit;\n  }\n  checkCodePoint = (mod - (sum % mod)) % mod;\n  return GSTN_CODEPOINT_CHARS[checkCodePoint];\n}\n\n// GSTIN Regex validation result\nfunction validatePattern(gstin) {\n  // eslint-disable-next-line max-len\n  var gstinRegexPattern = /^([0-2][0-9]|[3][0-8])[A-Z]{3}[ABCFGHLJPTK][A-Z]\\d{4}[A-Z][A-Z0-9][Z][A-Z0-9]$/;\n  return gstinRegexPattern.test(gstin);\n}\n\nfunction isValidGSTNumber(gstin) {\n  gstin = gstin.toUpperCase();\n  if (gstin.length !== 15) {\n    return false;\n  }\n  if (validatePattern(gstin)) {\n    return gstin[14] === calcCheckSum(gstin.toUpperCase());\n  }\n  return false;\n}\n\nfunction getInfo(gstin) {\n  var states = [\n    {\n      state_name: 'Andaman and Nicobar Islands',\n      state_code: '35',\n      state_shortcode: 'AN',\n    },\n    { state_name: 'Andhra Pradesh', state_code: '28', state_shortcode: 'AP' },\n    {\n      state_name: 'Andhra Pradesh (New)',\n      state_code: '37',\n      state_shortcode: 'AD',\n    },\n    {\n      state_name: 'Arunachal Pradesh',\n      state_code: '12',\n      state_shortcode: 'AR',\n    },\n    { state_name: 'Assam', state_code: '18', state_shortcode: 'AS' },\n    { state_name: 'Bihar', state_code: '10', state_shortcode: 'BH' },\n    { state_name: 'Chandigarh', state_code: '04', state_shortcode: 'CH' },\n    { state_name: 'Chattisgarh', state_code: '22', state_shortcode: 'CT' },\n    {\n      state_name: 'Dadra and Nagar Haveli',\n      state_code: '26',\n      state_shortcode: 'DN',\n    },\n    { state_name: 'Daman and Diu', state_code: '25', state_shortcode: 'DD' },\n    { state_name: 'Delhi', state_code: '07', state_shortcode: 'DL' },\n    { state_name: 'Goa', state_code: '30', state_shortcode: 'GA' },\n    { state_name: 'Gujarat', state_code: '24', state_shortcode: 'GJ' },\n    { state_name: 'Haryana', state_code: '06', state_shortcode: 'HR' },\n    { state_name: 'Himachal Pradesh', state_code: '02', state_shortcode: 'HP' },\n    {\n      state_name: 'Jammu and Kashmir',\n      state_code: '01',\n      state_shortcode: 'JK',\n    },\n    { state_name: 'Jharkhand', state_code: '20', state_shortcode: 'JH' },\n    { state_name: 'Karnataka', state_code: '29', state_shortcode: 'KA' },\n    { state_name: 'Kerala', state_code: '32', state_shortcode: 'KL' },\n    { state_name: 'Ladakh', state_code: '38', state_shortcode: 'LA' },\n    {\n      state_name: 'Lakshadweep Islands',\n      state_code: '31',\n      state_shortcode: 'LD',\n    },\n    { state_name: 'Madhya Pradesh', state_code: '23', state_shortcode: 'MP' },\n    { state_name: 'Maharashtra', state_code: '27', state_shortcode: 'MH' },\n    { state_name: 'Manipur', state_code: '14', state_shortcode: 'MN' },\n    { state_name: 'Meghalaya', state_code: '17', state_shortcode: 'ME' },\n    { state_name: 'Mizoram', state_code: '15', state_shortcode: 'MI' },\n    { state_name: 'Nagaland', state_code: '13', state_shortcode: 'NL' },\n    { state_name: 'Odisha', state_code: '21', state_shortcode: 'OR' },\n    { state_name: 'Pondicherry', state_code: '34', state_shortcode: 'PY' },\n    { state_name: 'Punjab', state_code: '03', state_shortcode: 'PB' },\n    { state_name: 'Rajasthan', state_code: '08', state_shortcode: 'RJ' },\n    { state_name: 'Sikkim', state_code: '11', state_shortcode: 'SK' },\n    { state_name: 'Tamil Nadu', state_code: '33', state_shortcode: 'TN' },\n    { state_name: 'Telangana', state_code: '36', state_shortcode: 'TS' },\n    { state_name: 'Tripura', state_code: '16', state_shortcode: 'TR' },\n    { state_name: 'Uttar Pradesh', state_code: '09', state_shortcode: 'UP' },\n    { state_name: 'Uttarakhand', state_code: '05', state_shortcode: 'UT' },\n    { state_name: 'West Bengal', state_code: '19', state_shortcode: 'WB' },\n  ];\n\n  var panTypes = [\n    { code: 'C', pan_type: 'Company' },\n    { code: 'P', pan_type: 'Person' },\n    { code: 'H', pan_type: 'HUF (Hindu Undivided Family)' },\n    { code: 'F', pan_type: 'Firm' },\n    { code: 'A', pan_type: 'Association of Persons (AOP)' },\n    { code: 'T', pan_type: 'AOP (Trust)' },\n    { code: 'B', pan_type: 'Body of Individuals (BOI)' },\n    { code: 'L', pan_type: 'Local Authority' },\n    { code: 'J', pan_type: 'Artificial Juridical Person ' },\n    { code: 'G', pan_type: 'Government' },\n  ];\n\n  gstin = gstin.toUpperCase();\n\n  if (!isValidGSTNumber(gstin)) return 'Invalid GSTIN';\n\n  var state = states.find(function(o) {\n    return o.state_code === gstin.slice(0, 2);\n  });\n  var info_msg =\n    'The GSTIN ' +\n    gstin +\n    ' is entity #' +\n    parseInt(gstin.slice(12, 13), 36) +\n    ' belonging to ' +\n    panTypes.find(function(o) {\n      return o.code === gstin[5];\n    }).pan_type +\n    ' whose PAN is ' +\n    gstin.slice(2, 12) +\n    ' registered in ' +\n    state.state_name +\n    ' (' +\n    state.state_shortcode +\n    ')';\n  return info_msg;\n}\n\nfunction getCert(certname) {\n  if (certname === undefined) {\n    certname = 'einv_prod';\n  }\n  if (certname.endsWith('.pem')) {\n    certname = certname.replace('.pem', '');\n  }\n  // get public key\n  var buf = Buffer.from(certs[certname], 'base64');\n  return buf.toString();\n}\n\n// This function is to validate a eInvoice QR\nfunction validateEInvoiceSignedQR(qrText, publickey) {\n  var cert = getCert(publickey);\n  try {\n    var decodedQR = jwt.verify(qrText, cert, {issuer: 'NIC'});\n  } catch (err) {\n    throw new Error('Signature Verification Failed!');\n  }\n  return decodedQR;\n}\n\nfunction validateSignedInvoice(signedInvoiceJWT, publickey) {\n  var cert = getCert(publickey);\n  try {\n    var invoice = jwt.verify(signedInvoiceJWT, cert, {issuer: 'NIC'});\n  } catch (err) {\n    throw new Error('Signature Verification Failed!');\n  }\n  return invoice;\n\n}\n\nmodule.exports = {\n  isValidGSTNumber: isValidGSTNumber  ,\n\n  ValidateGSTIN: function(gstin) {\n    gstin = gstin.toUpperCase();\n    if (gstin.length !== 15) {\n      return 'Enter a valid 15 character GSTIN';\n    }\n    if (!validatePattern(gstin)) {\n      return 'Invalid GSTIN format';\n    } else {\n      if (gstin.toUpperCase()[14] !== calcCheckSum(gstin.toUpperCase())) {\n        return 'Invalid checksum character in GSTIN';\n      } else return 'Valid GSTIN';\n    }\n  },\n\n  validateEInvoiceSignedQR: validateEInvoiceSignedQR,\n\n  validateSignedInvoice: validateSignedInvoice,\n\n  getGSTINInfo: getInfo,\n};\n\n\n//# sourceURL=webpack://sgf-gstin-validator/./src/index.js?");
+eval("__webpack_require__.r(__webpack_exports__);\n/* harmony export */ __webpack_require__.d(__webpack_exports__, {\n/* harmony export */   \"isValidGSTNumber\": () => (/* binding */ isValidGSTNumber)\n/* harmony export */ });\n/* module decorator */ module = __webpack_require__.hmd(module);\n\n\nvar jwt = __webpack_require__(/*! jsonwebtoken */ \"?d57b\");\nvar certs = __webpack_require__(/*! ./certs */ \"./src/certs.js\");\n\nfunction calcCheckSum(gstin) {\n  var GSTN_CODEPOINT_CHARS = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ';\n  var factor = 2;\n  var sum = 0;\n  var checkCodePoint = 0;\n  var mod = GSTN_CODEPOINT_CHARS.length;\n  var i;\n\n  for (i = gstin.length - 2; i >= 0; i--) {\n    var codePoint = -1;\n    for (var j = 0; j < GSTN_CODEPOINT_CHARS.length; j++) {\n      if (GSTN_CODEPOINT_CHARS[j] === gstin[i]) {\n        codePoint = j;\n      }\n    }\n    var digit = factor * codePoint;\n    factor = factor === 2 ? 1 : 2;\n    digit = Math.floor(digit / mod) + (digit % mod);\n    sum += digit;\n  }\n  checkCodePoint = (mod - (sum % mod)) % mod;\n  return GSTN_CODEPOINT_CHARS[checkCodePoint];\n}\n\n// GSTIN Regex validation result\nfunction validatePattern(gstin) {\n  // eslint-disable-next-line max-len\n  var gstinRegexPattern = /^([0-2][0-9]|[3][0-8])[A-Z]{3}[ABCFGHLJPTK][A-Z]\\d{4}[A-Z][A-Z0-9][Z][A-Z0-9]$/;\n  return gstinRegexPattern.test(gstin);\n}\n\nfunction isValidGSTNumber(gstin) {\n  gstin = gstin.toUpperCase();\n  if (gstin.length !== 15) {\n    return false;\n  }\n  if (validatePattern(gstin)) {\n    return gstin[14] === calcCheckSum(gstin.toUpperCase());\n  }\n  return false;\n}\n\nfunction getInfo(gstin) {\n  var states = [\n    {\n      state_name: 'Andaman and Nicobar Islands',\n      state_code: '35',\n      state_shortcode: 'AN',\n    },\n    { state_name: 'Andhra Pradesh', state_code: '28', state_shortcode: 'AP' },\n    {\n      state_name: 'Andhra Pradesh (New)',\n      state_code: '37',\n      state_shortcode: 'AD',\n    },\n    {\n      state_name: 'Arunachal Pradesh',\n      state_code: '12',\n      state_shortcode: 'AR',\n    },\n    { state_name: 'Assam', state_code: '18', state_shortcode: 'AS' },\n    { state_name: 'Bihar', state_code: '10', state_shortcode: 'BH' },\n    { state_name: 'Chandigarh', state_code: '04', state_shortcode: 'CH' },\n    { state_name: 'Chattisgarh', state_code: '22', state_shortcode: 'CT' },\n    {\n      state_name: 'Dadra and Nagar Haveli',\n      state_code: '26',\n      state_shortcode: 'DN',\n    },\n    { state_name: 'Daman and Diu', state_code: '25', state_shortcode: 'DD' },\n    { state_name: 'Delhi', state_code: '07', state_shortcode: 'DL' },\n    { state_name: 'Goa', state_code: '30', state_shortcode: 'GA' },\n    { state_name: 'Gujarat', state_code: '24', state_shortcode: 'GJ' },\n    { state_name: 'Haryana', state_code: '06', state_shortcode: 'HR' },\n    { state_name: 'Himachal Pradesh', state_code: '02', state_shortcode: 'HP' },\n    {\n      state_name: 'Jammu and Kashmir',\n      state_code: '01',\n      state_shortcode: 'JK',\n    },\n    { state_name: 'Jharkhand', state_code: '20', state_shortcode: 'JH' },\n    { state_name: 'Karnataka', state_code: '29', state_shortcode: 'KA' },\n    { state_name: 'Kerala', state_code: '32', state_shortcode: 'KL' },\n    { state_name: 'Ladakh', state_code: '38', state_shortcode: 'LA' },\n    {\n      state_name: 'Lakshadweep Islands',\n      state_code: '31',\n      state_shortcode: 'LD',\n    },\n    { state_name: 'Madhya Pradesh', state_code: '23', state_shortcode: 'MP' },\n    { state_name: 'Maharashtra', state_code: '27', state_shortcode: 'MH' },\n    { state_name: 'Manipur', state_code: '14', state_shortcode: 'MN' },\n    { state_name: 'Meghalaya', state_code: '17', state_shortcode: 'ME' },\n    { state_name: 'Mizoram', state_code: '15', state_shortcode: 'MI' },\n    { state_name: 'Nagaland', state_code: '13', state_shortcode: 'NL' },\n    { state_name: 'Odisha', state_code: '21', state_shortcode: 'OR' },\n    { state_name: 'Pondicherry', state_code: '34', state_shortcode: 'PY' },\n    { state_name: 'Punjab', state_code: '03', state_shortcode: 'PB' },\n    { state_name: 'Rajasthan', state_code: '08', state_shortcode: 'RJ' },\n    { state_name: 'Sikkim', state_code: '11', state_shortcode: 'SK' },\n    { state_name: 'Tamil Nadu', state_code: '33', state_shortcode: 'TN' },\n    { state_name: 'Telangana', state_code: '36', state_shortcode: 'TS' },\n    { state_name: 'Tripura', state_code: '16', state_shortcode: 'TR' },\n    { state_name: 'Uttar Pradesh', state_code: '09', state_shortcode: 'UP' },\n    { state_name: 'Uttarakhand', state_code: '05', state_shortcode: 'UT' },\n    { state_name: 'West Bengal', state_code: '19', state_shortcode: 'WB' },\n  ];\n\n  var panTypes = [\n    { code: 'C', pan_type: 'Company' },\n    { code: 'P', pan_type: 'Person' },\n    { code: 'H', pan_type: 'HUF (Hindu Undivided Family)' },\n    { code: 'F', pan_type: 'Firm' },\n    { code: 'A', pan_type: 'Association of Persons (AOP)' },\n    { code: 'T', pan_type: 'AOP (Trust)' },\n    { code: 'B', pan_type: 'Body of Individuals (BOI)' },\n    { code: 'L', pan_type: 'Local Authority' },\n    { code: 'J', pan_type: 'Artificial Juridical Person ' },\n    { code: 'G', pan_type: 'Government' },\n  ];\n\n  gstin = gstin.toUpperCase();\n\n  if (!isValidGSTNumber(gstin)) return 'Invalid GSTIN';\n\n  var state = states.find(function(o) {\n    return o.state_code === gstin.slice(0, 2);\n  });\n  var info_msg =\n    'The GSTIN ' +\n    gstin +\n    ' is entity #' +\n    parseInt(gstin.slice(12, 13), 36) +\n    ' belonging to ' +\n    panTypes.find(function(o) {\n      return o.code === gstin[5];\n    }).pan_type +\n    ' whose PAN is ' +\n    gstin.slice(2, 12) +\n    ' registered in ' +\n    state.state_name +\n    ' (' +\n    state.state_shortcode +\n    ')';\n  return info_msg;\n}\n\nfunction getCert(certname) {\n  if (certname === undefined) {\n    certname = 'einv_prod';\n  }\n  if (certname.endsWith('.pem')) {\n    certname = certname.replace('.pem', '');\n  }\n  // get public key\n  var buf = Buffer.from(certs[certname], 'base64');\n  return buf.toString();\n}\n\n// This function is to validate a eInvoice QR\nfunction validateEInvoiceSignedQR(qrText, publickey) {\n  var cert = getCert(publickey);\n  try {\n    var decodedQR = jwt.verify(qrText, cert, {issuer: 'NIC'});\n  } catch (err) {\n    throw new Error('Signature Verification Failed!');\n  }\n  return decodedQR;\n}\n\nfunction validateSignedInvoice(signedInvoiceJWT, publickey) {\n  var cert = getCert(publickey);\n  try {\n    var invoice = jwt.verify(signedInvoiceJWT, cert, {issuer: 'NIC'});\n  } catch (err) {\n    throw new Error('Signature Verification Failed!');\n  }\n  return invoice;\n\n}\n\nmodule.exports = {\n  isValidGSTNumber: isValidGSTNumber  ,\n\n  ValidateGSTIN: function(gstin) {\n    gstin = gstin.toUpperCase();\n    if (gstin.length !== 15) {\n      return 'Enter a valid 15 character GSTIN';\n    }\n    if (!validatePattern(gstin)) {\n      return 'Invalid GSTIN format';\n    } else {\n      if (gstin.toUpperCase()[14] !== calcCheckSum(gstin.toUpperCase())) {\n        return 'Invalid checksum character in GSTIN';\n      } else return 'Valid GSTIN';\n    }\n  },\n\n  validateEInvoiceSignedQR: validateEInvoiceSignedQR,\n\n  validateSignedInvoice: validateSignedInvoice,\n\n  getGSTINInfo: getInfo,\n};\n\n\n//# sourceURL=webpack://sgf-gstin-validator/./src/index.js?");
 
@@ -59,4 +59,4 @@ /***/ }),
 /******/ 		var module = __webpack_module_cache__[moduleId] = {
-/******/ 			// no module.id needed
-/******/ 			// no module.loaded needed
+/******/ 			id: moduleId,
+/******/ 			loaded: false,
 /******/ 			exports: {}
@@ -68,2 +68,5 @@ /******/ 		};
 /******/ 	
+/******/ 		// Flag the module as loaded
+/******/ 		module.loaded = true;
+/******/ 	
 /******/ 		// Return the exports of the module
@@ -74,3 +77,47 @@ /******/ 		return module.exports;
 /************************************************************************/
+/******/ 	/* webpack/runtime/define property getters */
+/******/ 	(() => {
+/******/ 		// define getter functions for harmony exports
+/******/ 		__webpack_require__.d = (exports, definition) => {
+/******/ 			for(var key in definition) {
+/******/ 				if(__webpack_require__.o(definition, key) && !__webpack_require__.o(exports, key)) {
+/******/ 					Object.defineProperty(exports, key, { enumerable: true, get: definition[key] });
+/******/ 				}
+/******/ 			}
+/******/ 		};
+/******/ 	})();
 /******/ 	
+/******/ 	/* webpack/runtime/harmony module decorator */
+/******/ 	(() => {
+/******/ 		__webpack_require__.hmd = (module) => {
+/******/ 			module = Object.create(module);
+/******/ 			if (!module.children) module.children = [];
+/******/ 			Object.defineProperty(module, 'exports', {
+/******/ 				enumerable: true,
+/******/ 				set: () => {
+/******/ 					throw new Error('ES Modules may not assign module.exports or exports.*, Use ESM export syntax, instead: ' + module.id);
+/******/ 				}
+/******/ 			});
+/******/ 			return module;
+/******/ 		};
+/******/ 	})();
+/******/ 	
+/******/ 	/* webpack/runtime/hasOwnProperty shorthand */
+/******/ 	(() => {
+/******/ 		__webpack_require__.o = (obj, prop) => (Object.prototype.hasOwnProperty.call(obj, prop))
+/******/ 	})();
+/******/ 	
+/******/ 	/* webpack/runtime/make namespace object */
+/******/ 	(() => {
+/******/ 		// define __esModule on exports
+/******/ 		__webpack_require__.r = (exports) => {
+/******/ 			if(typeof Symbol !== 'undefined' && Symbol.toStringTag) {
+/******/ 				Object.defineProperty(exports, Symbol.toStringTag, { value: 'Module' });
+/******/ 			}
+/******/ 			Object.defineProperty(exports, '__esModule', { value: true });
+/******/ 		};
+/******/ 	})();
+/******/ 	
+/************************************************************************/
+/******/ 	
 /******/ 	// startup
@@ -77,0 +124,0 @@ /******/ 	// Load entry module and return exports

package.json

 {
  "name": "sgf-gstin-validator",
- "version": "1.0.2",
+ "version": "1.0.3",
  "description": "Module to validate GSTIN and verify Signed QR of GST eInvoice",
@@ -5,0 +5,0 @@ "main": "dist/gstin-validator.js",

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Total package byte prevSize

17497

increased by13.99%

Lines of code

145

increased by49.48%

No dependency changes