@remix-run/headers/dist/lib/content-type.js

A toolkit for working with HTTP headers in JavaScript

import {} from "./header-value.js";
import { parseParams, quote } from "./param-values.js";
/**
 * The value of a `Content-Type` HTTP header.
 *
 * [MDN `Content-Type` Reference](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Type)
 *
 * [HTTP/1.1 Specification](https://datatracker.ietf.org/doc/html/rfc7231#section-3.1.1.5)
 */
export class ContentType {
    boundary;
    charset;
    mediaType;
    /**
     * @param init A string or object to initialize the header
     */
    constructor(init) {
        if (init) {
            if (typeof init === 'string') {
                let params = parseParams(init);
                if (params.length > 0) {
                    this.mediaType = params[0][0];
                    for (let [name, value] of params.slice(1)) {
                        if (name === 'boundary') {
                            this.boundary = value;
                        }
                        else if (name === 'charset') {
                            this.charset = value;
                        }
                    }
                }
            }
            else {
                this.boundary = init.boundary;
                this.charset = init.charset;
                this.mediaType = init.mediaType;
            }
        }
    }
    /**
     * Returns the string representation of the header value.
     *
     * @return The header value as a string
     */
    toString() {
        if (!this.mediaType) {
            return '';
        }
        let parts = [this.mediaType];
        if (this.charset) {
            parts.push(`charset=${quote(this.charset)}`);
        }
        if (this.boundary) {
            parts.push(`boundary=${quote(this.boundary)}`);
        }
        return parts.join('; ');
    }
}