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Parse HTTP Link headers for endpoints

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This commit is contained in:
Peter Stuifzand 2018-06-27 21:25:28 +02:00
parent 59d60fcfab
commit 545fd6ca03
1 changed files with 25 additions and 4 deletions
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29
pkg/indieauth/auth.go
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@ -9,6 +9,8 @@ import (
"net/http"
"net/url"
"linkheader"
"github.com/pstuifzand/ekster/pkg/util"
"willnorris.com/go/microformats"
)
@ -38,18 +40,37 @@ func GetEndpoints(me *url.URL) (Endpoints, error) {
}
defer res.Body.Close()
var links linkheader.Links
if headers, e := res.Header["Link"]; e {
links = linkheader.ParseMultiple(headers)
for _, link := range links {
if link.Rel == "authorization_endpoint" {
endpoints.AuthorizationEndpoint = link.URL
} else if link.Rel == "token_endpoint" {
endpoints.TokenEndpoint = link.URL
} else if link.Rel == "micropub" {
endpoints.MicropubEndpoint = link.URL
} else if link.Rel == "microsub" {
endpoints.MicrosubEndpoint = link.URL
} else {
log.Printf("Skipping unsupported rels in Link header: %s %s\n", link.Rel, link.URL)
}
}
}
data := microformats.Parse(res.Body, baseURL)
if auth, e := data.Rels["authorization_endpoint"]; e {
if auth, e := data.Rels["authorization_endpoint"]; e && endpoints.AuthorizationEndpoint == "" {
endpoints.AuthorizationEndpoint = auth[0]
}
if token, e := data.Rels["token_endpoint"]; e {
if token, e := data.Rels["token_endpoint"]; e && endpoints.TokenEndpoint == "" {
endpoints.TokenEndpoint = token[0]
}
if micropub, e := data.Rels["micropub"]; e {
if micropub, e := data.Rels["micropub"]; e && endpoints.MicropubEndpoint == "" {
endpoints.MicropubEndpoint = micropub[0]
}
if microsub, e := data.Rels["microsub"]; e {
if microsub, e := data.Rels["microsub"]; e && endpoints.MicrosubEndpoint == "" {
endpoints.MicrosubEndpoint = microsub[0]
}