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fastboot-headers.js
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fastboot-headers.js
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'use strict';
// Partially implements Headers from the Fetch API
// https://developer.mozilla.org/en-US/docs/Web/API/Headers
class FastBootHeaders {
constructor(headers) {
headers = headers || {};
this.headers = {};
for (var header in headers) {
let value = headers[header];
// Express gives us either a string
// or an array of strings if there are multiple values.
// We want to support the Header spec
// so we will coerce to an array always.
if (typeof value === 'string') {
value = [value];
}
this.headers[header] = value;
}
}
append(header, value) {
let _header = header.toLowerCase();
if (!this.has(_header)) {
this.headers[_header] = [];
}
this.headers[_header].push(value);
}
delete(header) {
delete this.headers[header.toLowerCase()];
}
entries() {
var entries = [];
for(var key in this.headers) {
var values = this.headers[key];
for(var index = 0; index < values.length; ++index ) {
entries.push([key, values[index]]);
}
}
return entries[Symbol.iterator]();
}
get(header) {
return this.getAll(header)[0] || null;
}
getAll(header) {
return this.headers[header.toLowerCase()] || [];
}
has(header) {
return this.headers[header.toLowerCase()] !== undefined;
}
keys() {
var entries = [];
for(var key in this.headers) {
var values = this.headers[key];
for(var index = 0; index < values.length; ++index ) {
entries.push(key);
}
}
return entries[Symbol.iterator]();
}
set(header, value) {
header = header.toLowerCase();
this.headers[header] = [value];
}
values() {
var entries = [];
for(var key in this.headers) {
var values = this.headers[key];
for(var index = 0; index < values.length; ++index ) {
entries.push(values[index]);
}
}
return entries[Symbol.iterator]();
}
}
module.exports = FastBootHeaders;