From 9de3187e416dc2a05857d746e7e35a5135e68306 Mon Sep 17 00:00:00 2001
From: "Calmcacil B." <716671+calmcacil@users.noreply.github.com>
Date: Fri, 17 Jul 2026 14:42:32 +0200
Subject: [PATCH 1/2] fix: support URL-encoded form data in qBittorrent add
 endpoint

Sonarr/Radarr send URL-encoded form data (not multipart) when adding magnet
links. Check Content-Type and fall back to ParseForm when the request is
not multipart, instead of unconditionally calling ParseMultipartForm.
---
 internal/api/qbit.go | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/internal/api/qbit.go b/internal/api/qbit.go
index 3a5f8fc..8644181 100644
--- a/internal/api/qbit.go
+++ b/internal/api/qbit.go
@@ -113,9 +113,17 @@ func (s *Server) handleQBitTransferInfo(w http.ResponseWriter, r *http.Request)
 }
 
 func (s *Server) handleQBitAdd(w http.ResponseWriter, r *http.Request) {
-	if err := r.ParseMultipartForm(8 << 20); err != nil { // 8 MB; torrent files are typically < 1 MB
-		http.Error(w, err.Error(), http.StatusBadRequest)
-		return
+	contentType := r.Header.Get("Content-Type")
+	if strings.HasPrefix(contentType, "multipart/form-data") {
+		if err := r.ParseMultipartForm(8 << 20); err != nil { // 8 MB; torrent files are typically < 1 MB
+			http.Error(w, err.Error(), http.StatusBadRequest)
+			return
+		}
+	} else {
+		if err := r.ParseForm(); err != nil {
+			http.Error(w, err.Error(), http.StatusBadRequest)
+			return
+		}
 	}
 
 	category := strings.TrimSpace(r.PostFormValue("category"))

From 528888256fe9d42b2c9032465f22f50782d88a60 Mon Sep 17 00:00:00 2001
From: "Calmcacil B." <716671+calmcacil@users.noreply.github.com>
Date: Sun, 19 Jul 2026 16:59:42 +0200
Subject: [PATCH 2/2] fix: parse Content-Type with mime.ParseMediaType for
 robust multipart detection

Covers uppercase Multipart/Form-Data and extra params (e.g. boundary),
per upstream review feedback on PR #2.
---
 internal/api/qbit.go | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/internal/api/qbit.go b/internal/api/qbit.go
index 8644181..19ab21b 100644
--- a/internal/api/qbit.go
+++ b/internal/api/qbit.go
@@ -1,6 +1,7 @@
 package api
 
 import (
+	"mime"
 	"net/http"
 	"net/url"
 	"os"
@@ -114,7 +115,8 @@ func (s *Server) handleQBitTransferInfo(w http.ResponseWriter, r *http.Request)
 
 func (s *Server) handleQBitAdd(w http.ResponseWriter, r *http.Request) {
 	contentType := r.Header.Get("Content-Type")
-	if strings.HasPrefix(contentType, "multipart/form-data") {
+	mediaType, _, _ := mime.ParseMediaType(contentType)
+	if mediaType == "multipart/form-data" {
 		if err := r.ParseMultipartForm(8 << 20); err != nil { // 8 MB; torrent files are typically < 1 MB
 			http.Error(w, err.Error(), http.StatusBadRequest)
 			return