pdf-tailwind-forms/dist/validator.js

TypeScript Node.js library for generating PDFs with AcroForms and TailwindCSS support

export class PDFValidator {
    constructor() {
        this.errors = [];
    }
    validate(config) {
        this.errors = [];
        this.validateContent(config.content);
        this.validateFields(config.fields || []);
        this.validatePDFOptions(config.pdfOptions);
        return {
            valid: this.errors.length === 0,
            errors: [...this.errors],
        };
    }
    validateContent(content) {
        if (!content) {
            this.errors.push("Content is required");
            return;
        }
        if (content.trim().length === 0) {
            this.errors.push("Content cannot be empty");
        }
        const dangerousTags = ["<script", "<iframe", "<object", "<embed"];
        for (const tag of dangerousTags) {
            if (content.toLowerCase().includes(tag)) {
                this.errors.push(`Dangerous HTML tag detected: ${tag}`);
            }
        }
    }
    validateFields(fields) {
        const fieldNames = new Set();
        for (const field of fields) {
            if (fieldNames.has(field.name)) {
                this.errors.push(`Duplicate field name: ${field.name}`);
            }
            fieldNames.add(field.name);
            this.validateField(field);
        }
    }
    validateField(field) {
        if (!field.name) {
            this.errors.push("Field must have a name");
        }
        if (!field.selector && !field.position) {
            this.errors.push(`Field "${field.name}" must have either selector or position`);
        }
        switch (field.type) {
            case "text":
                this.validateTextField(field);
                break;
            case "radio":
                this.validateRadioField(field);
                break;
            case "dropdown":
                this.validateDropdownField(field);
                break;
            case "button":
                this.validateButtonField(field);
                break;
        }
    }
    validateTextField(field) {
        if (field.maxLength && field.maxLength <= 0) {
            this.errors.push(`Invalid maxLength for field "${field.name}"`);
        }
    }
    validateRadioField(field) {
        if (!field.options || field.options.length === 0) {
            this.errors.push(`Radio field "${field.name}" must have options`);
        }
    }
    validateDropdownField(field) {
        if (!field.options || field.options.length === 0) {
            this.errors.push(`Dropdown field "${field.name}" must have options`);
        }
    }
    validateButtonField(field) {
        if (!field.label) {
            this.errors.push(`Button field "${field.name}" must have a label`);
        }
    }
    validatePDFOptions(options) {
        if (!options)
            return;
        const validFormats = ["A3", "A4", "A5", "Legal", "Letter", "Tabloid"];
        if (options.format && !validFormats.includes(options.format)) {
            this.errors.push(`Invalid PDF format: ${options.format}`);
        }
    }
}
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