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|
package api
import (
"net/http"
"regexp"
)
type service struct {
core *Core
}
// getLink get a rel into the Link header.
func getLink(header http.Header, rel string) string {
links := getLinks(header, rel)
if len(links) < 1 {
return ""
}
return links[0]
}
func getLinks(header http.Header, rel string) []string {
linkExpr := regexp.MustCompile(`<(.+?)>(?:;[^;]+)*?;\s*rel="(.+?)"`)
var links []string
for _, link := range header["Link"] {
for _, m := range linkExpr.FindAllStringSubmatch(link, -1) {
if len(m) != 3 {
continue
}
if m[2] == rel {
links = append(links, m[1])
}
}
}
return links
}
// getLocation get the value of the header Location.
func getLocation(resp *http.Response) string {
if resp == nil {
return ""
}
return resp.Header.Get("Location")
}
// getRetryAfter get the value of the header Retry-After.
func getRetryAfter(resp *http.Response) string {
if resp == nil {
return ""
}
return resp.Header.Get("Retry-After")
}
|
