88 lines
2.0 KiB
Go
88 lines
2.0 KiB
Go
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package handlers
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import (
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"encoding/base64"
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"encoding/json"
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"log"
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"net/http"
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"github.com/authorizerdev/authorizer/server/utils"
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"github.com/gin-gonic/gin"
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)
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type State struct {
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AuthorizerURL string `json:"authorizerURL"`
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RedirectURL string `json:"redirectURL"`
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}
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func AppHandler() gin.HandlerFunc {
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return func(c *gin.Context) {
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host := "http://" + c.Request.Host
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state := c.Query("state")
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var stateObj State
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if state == "" {
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cookie, err := utils.GetAuthToken(c)
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log.Println(`cookie`, cookie)
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if err != nil {
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c.JSON(400, gin.H{"error": "invalid state"})
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return
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}
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stateObj.AuthorizerURL = host
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stateObj.RedirectURL = host + "/app"
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} else {
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decodedState, err := base64.StdEncoding.DecodeString(state)
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if err != nil {
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c.JSON(400, gin.H{"error": "[unable to decode state] invalid state"})
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return
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}
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err = json.Unmarshal(decodedState, &stateObj)
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if err != nil {
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c.JSON(400, gin.H{"error": "[unable to parse state] invalid state"})
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return
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}
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// validate redirect url with allowed origins
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if !utils.IsValidRedirectURL(stateObj.RedirectURL) {
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c.JSON(400, gin.H{"error": "invalid redirect url"})
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return
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}
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if stateObj.AuthorizerURL == "" {
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c.JSON(400, gin.H{"error": "invalid authorizer url"})
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return
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}
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// validate host and domain of authorizer url
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if utils.GetDomainName(stateObj.AuthorizerURL) != utils.GetDomainName(host) {
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c.JSON(400, gin.H{"error": "invalid host url"})
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return
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}
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}
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log.Println(gin.H{
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"data": map[string]string{
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"authorizerURL": "http://" + stateObj.AuthorizerURL,
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"redirectURL": stateObj.RedirectURL,
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},
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})
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// debug the request state
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if pusher := c.Writer.Pusher(); pusher != nil {
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// use pusher.Push() to do server push
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if err := pusher.Push("/app/build/bundle.js", nil); err != nil {
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log.Printf("Failed to push: %v", err)
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}
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}
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c.HTML(http.StatusOK, "app.tmpl", gin.H{
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"data": map[string]string{
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"authorizerURL": stateObj.AuthorizerURL,
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"redirectURL": stateObj.RedirectURL,
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},
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})
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}
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}
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