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