75 lines
1.8 KiB
Go
75 lines
1.8 KiB
Go
package providers
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import (
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"bytes"
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"encoding/json"
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"errors"
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"fmt"
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"io/ioutil"
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"net/http"
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"net/url"
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"strings"
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)
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func (p *ProviderData) Redeem(redirectUrl, code string) (body []byte, token string, err error) {
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if code == "" {
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err = errors.New("missing code")
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return
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}
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params := url.Values{}
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params.Add("redirect_uri", redirectUrl)
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params.Add("client_id", p.ClientID)
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params.Add("client_secret", p.ClientSecret)
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params.Add("code", code)
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params.Add("grant_type", "authorization_code")
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req, err := http.NewRequest("POST", p.RedeemUrl.String(), bytes.NewBufferString(params.Encode()))
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if err != nil {
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return nil, "", err
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}
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req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
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resp, err := http.DefaultClient.Do(req)
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if err != nil {
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return nil, "", err
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}
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body, err = ioutil.ReadAll(resp.Body)
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resp.Body.Close()
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if err != nil {
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return nil, "", err
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}
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if resp.StatusCode != 200 {
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return body, "", fmt.Errorf("got %d from %q %s", resp.StatusCode, p.RedeemUrl.String(), body)
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}
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// blindly try json and x-www-form-urlencoded
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var jsonResponse struct {
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AccessToken string `json:"access_token"`
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}
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err = json.Unmarshal(body, &jsonResponse)
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if err == nil {
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return body, jsonResponse.AccessToken, nil
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}
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v, err := url.ParseQuery(string(body))
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return body, v.Get("access_token"), err
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}
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// GetLoginURL with typical oauth parameters
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func (p *ProviderData) GetLoginURL(redirectURI, finalRedirect string) string {
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var a url.URL
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a = *p.LoginUrl
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params, _ := url.ParseQuery(a.RawQuery)
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params.Set("redirect_uri", redirectURI)
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params.Set("approval_prompt", "force")
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params.Add("scope", p.Scope)
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params.Set("client_id", p.ClientID)
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params.Set("response_type", "code")
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if strings.HasPrefix(finalRedirect, "/") {
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params.Add("state", finalRedirect)
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}
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a.RawQuery = params.Encode()
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return a.String()
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}
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