@syntropysoft/praetorian
Version:
Praetorian CLI – A universal multi-environment configuration validator for DevSecOps teams. Validate, compare, and secure YAML/ENV files with ease.
149 lines • 5.08 kB
JavaScript
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var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
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Object.defineProperty(o, k2, desc);
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Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || (function () {
var ownKeys = function(o) {
ownKeys = Object.getOwnPropertyNames || function (o) {
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__setModuleDefault(result, mod);
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};
})();
Object.defineProperty(exports, "__esModule", { value: true });
exports.parseYamlContent = exports.YamlFileAdapter = void 0;
const yaml = __importStar(require("js-yaml"));
const AbstractFileAdapter_1 = require("../base/AbstractFileAdapter");
/**
* YAML File Adapter - Functional Programming
*
* Single Responsibility: Parse YAML configuration files only
* Pure functions, no state, no side effects
*/
class YamlFileAdapter extends AbstractFileAdapter_1.AbstractFileAdapter {
canHandle(filePath) {
// Guard clause: no file path
if (!filePath || typeof filePath !== 'string') {
return false;
}
return isYamlFile(filePath);
}
async read(filePath) {
// Guard clause: no file path
if (!filePath || typeof filePath !== 'string') {
throw new Error('File path is required');
}
this.validateFileExists(filePath);
try {
const content = await this.readFileContent(filePath);
return (0, exports.parseYamlContent)(content, filePath);
}
catch (error) {
throw new Error(`Failed to parse YAML file ${filePath}: ${error instanceof Error ? error.message : 'Unknown error'}`);
}
}
getFormat() {
return 'yaml';
}
getSupportedExtensions() {
return ['.yaml', '.yml'];
}
}
exports.YamlFileAdapter = YamlFileAdapter;
/**
* Pure function to check if file is YAML
*/
const isYamlFile = (filePath) => {
// Guard clause: no file path
if (!filePath) {
return false;
}
return filePath.endsWith('.yaml') || filePath.endsWith('.yml');
};
/**
* Pure function to parse YAML content
*/
const parseYamlContent = (content, filePath) => {
// Guard clause: no content
if (!content || typeof content !== 'string') {
return {};
}
try {
const parsedContent = yaml.load(content);
return validateYamlContent(parsedContent, filePath);
}
catch (error) {
const errorMessage = getYamlErrorMessage(error, filePath);
throw new Error(errorMessage);
}
};
exports.parseYamlContent = parseYamlContent;
/**
* Pure function to validate YAML content structure
*/
const validateYamlContent = (parsedContent, filePath) => {
// Guard clause: no parsed content
if (parsedContent === null || parsedContent === undefined) {
return {};
}
// Guard clause: not an object
if (typeof parsedContent !== 'object') {
const fileName = filePath ? ` in ${filePath}` : '';
throw new Error(`Invalid YAML content${fileName}: expected object, got ${typeof parsedContent}`);
}
// Guard clause: array instead of object
if (Array.isArray(parsedContent)) {
const fileName = filePath ? ` in ${filePath}` : '';
throw new Error(`Invalid YAML content${fileName}: expected object, got array`);
}
return parsedContent;
};
/**
* Pure function to get YAML error message
*/
const getYamlErrorMessage = (error, filePath) => {
// Guard clause: no error
if (!error) {
return 'Unknown YAML parsing error';
}
const fileName = filePath ? ` in ${filePath}` : '';
// Check if it's a YAML syntax error
if (isYamlSyntaxError(error)) {
return `Invalid YAML syntax${fileName}: ${error.message}`;
}
// Generic error
return `YAML parsing error${fileName}: ${error.message || 'Unknown error'}`;
};
/**
* Pure function to check if error is YAML syntax error
*/
const isYamlSyntaxError = (error) => {
// Guard clause: no error
if (!error) {
return false;
}
return error instanceof yaml.YAMLException;
};
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