// 認可コードを使って、ID プロバイダからアクセストークンを取得する。
func (this *environment) getAccessToken(req *callbackRequest, idp idpdb.Element) (*token.Element, *idToken, error) {
keys, err := this.keyDb.Get()
if err != nil {
return nil, nil, erro.Wrap(err)
}
queries := url.Values{}
// grant_type
queries.Set(tagGrant_type, tagAuthorization_code)
// code
queries.Set(tagCode, req.code())
// redirect_uri
queries.Set(tagRedirect_uri, this.sess.RedirectUri())
// client_id
queries.Set(tagClient_id, this.sess.Ta())
// client_assertion_type
queries.Set(tagClient_assertion_type, cliAssTypeJwt_bearer)
// client_assertion
ass := jwt.New()
now := time.Now()
ass.SetHeader(tagAlg, this.sigAlg)
ass.SetClaim(tagIss, this.sess.Ta())
ass.SetClaim(tagSub, this.sess.Ta())
ass.SetClaim(tagAud, idp.TokenUri())
ass.SetClaim(tagJti, this.idGen.String(this.jtiLen))
ass.SetClaim(tagExp, now.Add(this.jtiExpIn).Unix())
ass.SetClaim(tagIat, now.Unix())
if err := ass.Sign(keys); err != nil {
return nil, nil, erro.Wrap(err)
}
buff, err := ass.Encode()
if err != nil {
return nil, nil, erro.Wrap(err)
}
queries.Set(tagClient_assertion, string(buff))
tokReq, err := http.NewRequest("POST", idp.TokenUri(), strings.NewReader(queries.Encode()))
if err != nil {
return nil, nil, erro.Wrap(err)
}
tokReq.Header.Set(tagContent_type, contTypeForm)
server.LogRequest(level.DEBUG, tokReq, this.debug, this.logPref)
resp, err := http.DefaultClient.Do(tokReq)
if err != nil {
return nil, nil, erro.Wrap(err)
}
defer resp.Body.Close()
server.LogResponse(level.DEBUG, resp, this.debug, this.logPref)
log.Info(this.logPref, "Got token response from "+idp.Id())
tokResp, err := parseTokenResponse(resp)
if err != nil {
return nil, nil, erro.Wrap(server.NewError(http.StatusForbidden, "cannot get access token", nil))
}
tok := token.New(tokResp.token(), this.idGen.String(this.tokTagLen), tokResp.expires(), idp.Id(), tokResp.scope())
log.Info(this.logPref, "Got access token "+logutil.Mosaic(tok.Id()))
if err := this.tokDb.Save(tok, time.Now().Add(this.tokDbExpIn)); err != nil {
return nil, nil, erro.Wrap(err)
}
log.Info(this.logPref, "Saved access token "+logutil.Mosaic(tok.Id()))
idTok, err := parseIdToken(tokResp.idToken())
if err != nil {
return nil, nil, erro.Wrap(server.NewError(http.StatusForbidden, erro.Unwrap(err).Error(), err))
} else if idTok.nonce() != this.sess.Nonce() {
return nil, nil, erro.Wrap(server.NewError(http.StatusForbidden, "invalid nonce", nil))
} else if err := idTok.verify(idp.Keys()); err != nil {
return nil, nil, erro.Wrap(server.NewError(http.StatusForbidden, erro.Unwrap(err).Error(), err))
} else if idTok.tokenHash() != nil {
if err := idTok.verifyTokenHash(tok.Id()); err != nil {
return nil, nil, erro.Wrap(server.NewError(http.StatusForbidden, erro.Unwrap(err).Error(), err))
}
}
log.Info(this.logPref, "ID token is OK")
return tok, idTok, nil
}
func (this *environment) getInfo(isMain bool, idp idpdb.Element, codTok *codeToken) (frTa string, tok *token.Element, tagToAttrs map[string]map[string]interface{}, err error) {
params := map[string]interface{}{}
// grant_type
params[tagGrant_type] = tagCooperation_code
// code
params[tagCode] = codTok.code()
// claims
if isMain {
// TODO 受け取り方を考えないと。
}
// user_claims
// TODO 受け取り方を考えないと。
// client_assertion_type
params[tagClient_assertion_type] = cliAssTypeJwt_bearer
// client_assertion
keys, err := this.keyDb.Get()
if err != nil {
return "", nil, nil, erro.Wrap(err)
}
ass, err := makeAssertion(this.handler, keys, idp.CoopToUri())
if err != nil {
return "", nil, nil, erro.Wrap(err)
}
params[tagClient_assertion] = string(ass)
data, err := json.Marshal(params)
if err != nil {
return "", nil, nil, erro.Wrap(err)
}
r, err := http.NewRequest("POST", idp.CoopToUri(), bytes.NewReader(data))
r.Header.Set(tagContent_type, contTypeJson)
log.Debug(this.logPref, "Made main cooperation-to request")
server.LogRequest(level.DEBUG, r, this.debug, this.logPref)
resp, err := this.conn.Do(r)
if err != nil {
return "", nil, nil, erro.Wrap(err)
}
defer resp.Body.Close()
server.LogResponse(level.DEBUG, resp, this.debug, this.logPref)
if resp.StatusCode != http.StatusOK {
var buff struct {
Error string
Error_description string
}
if err := json.NewDecoder(resp.Body).Decode(&buff); err != nil {
return "", nil, nil, erro.Wrap(err)
}
return "", nil, nil, erro.Wrap(idperr.New(buff.Error, buff.Error_description, resp.StatusCode, nil))
}
coopResp, err := parseCoopResponse(resp)
if err != nil {
return "", nil, nil, erro.Wrap(idperr.New(idperr.Access_denied, erro.Unwrap(err).Error(), http.StatusForbidden, err))
}
idsTok, err := parseIdsToken(coopResp.idsToken())
if err != nil {
return "", nil, nil, erro.Wrap(idperr.New(idperr.Access_denied, erro.Unwrap(err).Error(), http.StatusForbidden, err))
} else if err := idsTok.verify(idp.Keys()); err != nil {
return "", nil, nil, erro.Wrap(idperr.New(idperr.Access_denied, erro.Unwrap(err).Error(), http.StatusForbidden, err))
}
tagToAttrs = map[string]map[string]interface{}{}
for acntTag := range codTok.accountTags() {
attrs := idsTok.attributes()[acntTag]
if attrs == nil {
return "", nil, nil, erro.Wrap(idperr.New(idperr.Access_denied, "cannot get sub account tagged by "+acntTag, http.StatusForbidden, nil))
}
tagToAttrs[acntTag] = attrs
}
if isMain {
attrs := idsTok.attributes()[codTok.accountTag()]
if attrs == nil {
return "", nil, nil, erro.Wrap(idperr.New(idperr.Access_denied, "cannot get main account tagged by "+codTok.accountTag(), http.StatusForbidden, nil))
}
tagToAttrs[codTok.accountTag()] = attrs
if coopResp.token() == "" {
return "", nil, nil, erro.Wrap(idperr.New(idperr.Access_denied, "cannot get token", http.StatusForbidden, nil))
}
now := time.Now()
tok = token.New(coopResp.token(), this.idGen.String(this.tokTagLen), now.Add(coopResp.expiresIn()), idsTok.idProvider(), coopResp.scope())
log.Info(this.logPref, "Got access token "+logutil.Mosaic(tok.Id()))
if err := this.tokDb.Save(tok, now.Add(this.tokDbExpIn)); err != nil {
return "", nil, nil, erro.Wrap(err)
}
log.Info(this.logPref, "Saved access token "+logutil.Mosaic(tok.Id()))
}
return idsTok.fromTa(), tok, tagToAttrs, nil
}