-
Notifications
You must be signed in to change notification settings - Fork 0
/
links.go
51 lines (43 loc) · 970 Bytes
/
links.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
package caddy_chrome
import (
"github.com/chromedp/cdproto/network"
"net/http"
"sync"
)
type links struct {
mu sync.Mutex
urls map[string]string
}
func newLinks() *links {
return &links{
urls: make(map[string]string),
}
}
func (l *links) AddResource(url string, resourceType network.ResourceType) {
l.mu.Lock()
defer l.mu.Unlock()
switch resourceType {
case network.ResourceTypeFont:
l.urls[url] = "font"
case network.ResourceTypeImage:
l.urls[url] = "image"
case network.ResourceTypeScript:
l.urls[url] = "script"
case network.ResourceTypeStylesheet:
l.urls[url] = "style"
}
}
func (l *links) AddPreconnect(origin string) {
l.mu.Lock()
defer l.mu.Unlock()
l.urls[origin] = "preconnect"
}
func (l *links) MakeHeaders(header http.Header) {
for url, relAs := range l.urls {
if relAs == "preconnect" {
header.Add("Link", "<"+url+">; rel=preconnect")
} else {
header.Add("Link", "<"+url+">; rel=preload; as="+relAs)
}
}
}