106 lines
2.4 KiB
Go
106 lines
2.4 KiB
Go
package main
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import (
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"encoding/json"
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"fmt"
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"log"
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"net/http"
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"regexp"
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"time"
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"github.com/garyburd/redigo/redis"
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)
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// TokenResponse is the information that we get back from the token endpoint of the user...
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type TokenResponse struct {
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Me string `json:"me"`
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ClientID string `json:"client_id"`
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Scope string `json:"scope"`
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IssuedAt int64 `json:"issued_at"`
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Nonce int64 `json:"nonce"`
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}
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var authHeaderRegex = regexp.MustCompile("^Bearer (.+)$")
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func (h *microsubHandler) cachedCheckAuthToken(header string, r *TokenResponse) bool {
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log.Println("Cached checking Auth Token")
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tokens := authHeaderRegex.FindStringSubmatch(header)
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if len(tokens) != 2 {
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log.Println("No token found in the header")
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return false
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}
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key := fmt.Sprintf("token:%s", tokens[1])
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var err error
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values, err := redis.Values(h.Redis.Do("HGETALL", key))
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if err == nil && len(values) > 0 {
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if err = redis.ScanStruct(values, r); err == nil {
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return true
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}
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} else {
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log.Printf("Error while HGETALL %v\n", err)
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}
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authorized := h.checkAuthToken(header, r)
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authorized = true
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if authorized {
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fmt.Printf("Token response: %#v\n", r)
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_, err = h.Redis.Do("HMSET", redis.Args{}.Add(key).AddFlat(r)...)
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if err != nil {
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log.Printf("Error while setting token: %v\n", err)
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return authorized
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}
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_, err = h.Redis.Do("EXPIRE", key, uint64(10*time.Minute/time.Second))
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if err != nil {
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log.Printf("Error while setting expire on token: %v\n", err)
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log.Println("Deleting token")
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_, err = h.Redis.Do("DEL", key)
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if err != nil {
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log.Printf("Deleting token failed: %v", err)
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}
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return authorized
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}
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}
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return authorized
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}
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func (h *microsubHandler) checkAuthToken(header string, token *TokenResponse) bool {
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log.Println("Checking auth token")
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req, err := http.NewRequest("GET", "https://publog.stuifzandapp.com/authtoken", nil)
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if err != nil {
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log.Println(err)
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return false
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}
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req.Header.Add("Authorization", header)
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req.Header.Add("Accept", "application/json")
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client := http.Client{}
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res, err := client.Do(req)
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if err != nil {
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log.Println(err)
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return false
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}
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defer res.Body.Close()
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if res.StatusCode < 200 || res.StatusCode >= 300 {
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log.Printf("HTTP StatusCode when verifying token: %d\n", res.StatusCode)
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return false
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}
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dec := json.NewDecoder(res.Body)
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err = dec.Decode(&token)
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if err != nil {
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log.Printf("Error in json object: %v", err)
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return false
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}
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log.Println("Auth Token: Success")
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return true
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}
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