@codebucket/whatsapp
Version:
A reusable WhatsApp Business API client with template and non-template support, webhook handling, pluggable storage, and text sanitization
42 lines (41 loc) • 1.51 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.cleanTemplateText = cleanTemplateText;
exports.validateTemplateText = validateTemplateText;
/**
* Cleans a template variable text by removing disallowed characters,
* trimming excessive whitespace, escaping unsupported patterns,
* and stripping newlines (which are not allowed).
*/
function cleanTemplateText(input) {
let text = input
.replace(/[\x00-\x1F\x7F]/g, '') // remove control chars
.replace(/\r?\n/g, ' ') // strip newlines
.replace(/\s{2,}/g, ' ') // collapse spaces
.trim();
// escape stray braces
text = text.replace(/\{([^{}]+)\}/g, '{{$1}}');
return text;
}
/**
* Validates template text against WhatsApp Business API rules.
* Returns an array of warnings (no errors are thrown).
*/
function validateTemplateText(input) {
const warnings = [];
if (/\r?\n/.test(input)) {
warnings.push('Template text contained newline characters which have been stripped.');
}
if (input.length > 1024) {
warnings.push(`Template text exceeds 1024 characters (${input.length}).`);
}
if (/\p{Emoji}/u.test(input)) {
warnings.push('Text contains emoji characters which may be disallowed.');
}
const open = (input.match(/\{\{/g) || []).length;
const close = (input.match(/\}\}/g) || []).length;
if (open !== close) {
warnings.push('Detected unbalanced placeholder braces.');
}
return warnings;
}