67 lines
2.1 KiB
JavaScript
67 lines
2.1 KiB
JavaScript
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"use strict";
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class MultipartData {
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constructor() {
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this.boundary = "----------------Eris";
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this.bufs = [];
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}
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attach(fieldName, data, filename) {
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if(data === undefined) {
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return;
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}
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let str = "\r\n--" + this.boundary + "\r\nContent-Disposition: form-data; name=\"" + fieldName + "\"";
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let contentType;
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if(filename) {
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str += "; filename=\"" + filename + "\"";
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const extension = filename.match(/\.(png|apng|gif|jpg|jpeg|webp|svg|json)$/i);
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if(extension) {
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let ext = extension[1].toLowerCase();
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switch(ext) {
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case "png":
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case "apng":
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case "gif":
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case "jpg":
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case "jpeg":
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case "webp":
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case "svg": {
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if(ext === "svg") {
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ext = "svg+xml";
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}
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contentType = "image/";
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break;
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}
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case "json": {
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contentType = "application/";
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break;
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}
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}
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contentType += ext;
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}
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}
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if(contentType) {
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str += `\r\nContent-Type: ${contentType}`;
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} else if(ArrayBuffer.isView(data)) {
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str +="\r\nContent-Type: application/octet-stream";
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if(!(data instanceof Uint8Array)) {
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data = new Uint8Array(data.buffer, data.byteOffset, data.byteLength);
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}
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} else if(typeof data === "object") {
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str +="\r\nContent-Type: application/json";
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data = Buffer.from(JSON.stringify(data));
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} else {
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data = Buffer.from("" + data);
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}
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this.bufs.push(Buffer.from(str + "\r\n\r\n"));
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this.bufs.push(data);
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}
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finish() {
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this.bufs.push(Buffer.from("\r\n--" + this.boundary + "--"));
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return this.bufs;
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}
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}
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module.exports = MultipartData;
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