/
test_helpers.go
141 lines (122 loc) · 3.68 KB
/
test_helpers.go
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/*
* Copyright © 2015-2020 Aeneas Rekkas <aeneas+oss@aeneas.io>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* @author Aeneas Rekkas <aeneas+oss@aeneas.io>
* @copyright 2015-2020 Aeneas Rekkas <aeneas+oss@aeneas.io>
* @license Apache-2.0
*
*/
package internal
import (
"errors"
"net/url"
"io"
"strconv"
"time"
"golang.org/x/net/html"
goauth "golang.org/x/oauth2"
)
func ParseFormPostResponse(redirectURL string, resp io.ReadCloser) (authorizationCode, stateFromServer, iDToken string, token goauth.Token, customParameters url.Values, rFC6749Error map[string]string, err error) {
token = goauth.Token{}
rFC6749Error = map[string]string{}
customParameters = url.Values{}
doc, err := html.Parse(resp)
if err != nil {
return "", "", "", token, customParameters, rFC6749Error, err
}
//doc>html>body
body := findBody(doc.FirstChild.FirstChild)
if body.Data != "body" {
return "", "", "", token, customParameters, rFC6749Error, errors.New("Malformed html")
}
htmlEvent := body.Attr[0].Key
if htmlEvent != "onload" {
return "", "", "", token, customParameters, rFC6749Error, errors.New("onload event is missing")
}
onLoadFunc := body.Attr[0].Val
if onLoadFunc != "javascript:document.forms[0].submit()" {
return "", "", "", token, customParameters, rFC6749Error, errors.New("onload function is missing")
}
form := getNextNoneTextNode(body.FirstChild)
if form.Data != "form" {
return "", "", "", token, customParameters, rFC6749Error, errors.New("html form is missing")
}
for _, attr := range form.Attr {
if attr.Key == "method" {
if attr.Val != "post" {
return "", "", "", token, customParameters, rFC6749Error, errors.New("html form post method is missing")
}
} else {
if attr.Val != redirectURL {
return "", "", "", token, customParameters, rFC6749Error, errors.New("html form post url is wrong")
}
}
}
for node := getNextNoneTextNode(form.FirstChild); node != nil; node = getNextNoneTextNode(node.NextSibling) {
var k, v string
for _, attr := range node.Attr {
if attr.Key == "name" {
k = attr.Val
} else if attr.Key == "value" {
v = attr.Val
}
}
switch k {
case "state":
stateFromServer = v
case "code":
authorizationCode = v
case "expires_in":
expires, err := strconv.Atoi(v)
if err != nil {
return "", "", "", token, customParameters, rFC6749Error, err
}
token.Expiry = time.Now().UTC().Add(time.Duration(expires) * time.Second)
case "access_token":
token.AccessToken = v
case "token_type":
token.TokenType = v
case "refresh_token":
token.RefreshToken = v
case "error":
rFC6749Error["ErrorField"] = v
case "error_hint":
rFC6749Error["HintField"] = v
case "error_description":
rFC6749Error["DescriptionField"] = v
case "id_token":
iDToken = v
default:
customParameters.Add(k, v)
}
}
return
}
func getNextNoneTextNode(node *html.Node) *html.Node {
nextNode := node.NextSibling
if nextNode != nil && nextNode.Type == html.TextNode {
nextNode = getNextNoneTextNode(node.NextSibling)
}
return nextNode
}
func findBody(node *html.Node) *html.Node {
if node != nil {
if node.Data == "body" {
return node
}
return findBody(node.NextSibling)
}
return nil
}