From d8dd5eb6713ac1546988112981d08a19d5049bbc Mon Sep 17 00:00:00 2001
From: mstar <me@mstar.dev>
Date: Thu, 22 May 2025 17:01:47 +0200
Subject: [PATCH] Add fetch debug endpoint for requesting an url as a user

---
 web/debug/server.go |  1 +
 web/debug/users.go  | 33 +++++++++++++++++++++++++++++++++
 2 files changed, 34 insertions(+)

diff --git a/web/debug/server.go b/web/debug/server.go
index 4ad5d1b..b61923e 100644
--- a/web/debug/server.go
+++ b/web/debug/server.go
@@ -35,6 +35,7 @@ func New(addr string) *Server {
 	handler.HandleFunc("GET /request-follow", kickoffFollow)
 	handler.HandleFunc("POST /send-as", proxyMessageToTarget)
 	handler.HandleFunc("GET /replies-to/{id}", inReplyTo)
+	handler.HandleFunc("POST /fetch", requestAs)
 	web := http.Server{
 		Addr: addr,
 		Handler: webutils.ChainMiddlewares(
diff --git a/web/debug/users.go b/web/debug/users.go
index 747782c..8f6a153 100644
--- a/web/debug/users.go
+++ b/web/debug/users.go
@@ -295,3 +295,36 @@ func kickoffFollow(w http.ResponseWriter, r *http.Request) {
 	dec := json.NewDecoder(r.Body)
 	dec.Decode(&data)
 }
+
+func requestAs(w http.ResponseWriter, r *http.Request) {
+	type Inbound struct {
+		Username  string
+		TargetUrl string
+	}
+	log := hlog.FromRequest(r)
+	data := Inbound{}
+	dec := json.NewDecoder(r.Body)
+	err := dec.Decode(&data)
+	if err != nil {
+		log.Warn().Err(err).Msg("Failed to decode json body")
+		webutils.ProblemDetailsStatusOnly(w, http.StatusInternalServerError)
+		return
+	}
+	user, err := dbgen.User.GetByUsername(data.Username)
+	if err != nil {
+		webutils.ProblemDetailsStatusOnly(w, http.StatusNotFound)
+		return
+	}
+	res, _, err := webshared.RequestSigned("GET", data.TargetUrl, nil, user)
+	if err != nil {
+		log.Warn().Err(err).Msg("Request failed")
+		webutils.ProblemDetailsStatusOnly(w, http.StatusInternalServerError)
+		return
+	}
+	if res.StatusCode != 200 {
+		webutils.ProblemDetailsStatusOnly(w, res.StatusCode)
+		return
+	}
+	body, _ := io.ReadAll(res.Body)
+	fmt.Fprint(w, string(body))
+}