From 3f8d42571b7a438dd30e2f9f6e54d32eb3654af6 Mon Sep 17 00:00:00 2001
From: Thibault Piron <thibault.a.piron@gmail.com>
Date: Fri, 12 Sep 2025 18:20:19 +0200
Subject: [PATCH] feat: add possibility to hide upload button

---
 src/cmd/collerd/README.md       |  1 +
 src/server/config.go            | 40 +++++++++++++++++----------------
 src/server/server.go            | 18 ++++++++-------
 src/server/templates/index.html |  2 ++
 4 files changed, 34 insertions(+), 27 deletions(-)

diff --git a/src/cmd/collerd/README.md b/src/cmd/collerd/README.md
index 30eb167..d99a273 100644
--- a/src/cmd/collerd/README.md
+++ b/src/cmd/collerd/README.md
@@ -33,6 +33,7 @@ The file format is **JSON**:
 * **observation_internal** (int): Number of seconds to wait between two observations (default 60)
 * **languages** ([]string): List of supported [languages](https://github.com/microsoft/monaco-editor/tree/main/src/basic-languages)
 * **language** (string): Default language (default "text")
+* **enable_upload_file_button** (bool): Display the upload file button in the UI (default true)
 
 The configuration file is not required but the service might not be exposed to the public.
 
diff --git a/src/server/config.go b/src/server/config.go
index 4e6cdc7..8ba51ca 100644
--- a/src/server/config.go
+++ b/src/server/config.go
@@ -7,24 +7,25 @@ import (
 )
 
 type Config struct {
-	Title                 string   `json:"title"`
-	DatabaseType          string   `json:"database_type"`
-	DatabaseDsn           string   `json:"database_dsn"`
-	IDLength              int      `json:"id_length"`
-	PasswordLength        int      `json:"password_length"`
-	ExpirationInterval    int      `json:"expiration_interval"`
-	ListenAddress         string   `json:"listen_address"`
-	ListenPort            int      `json:"listen_port"`
-	Expirations           []int    `json:"expirations"`
-	Expiration            int      `json:"expiration"`
-	MaxUploadSize         int64    `json:"max_upload_size"`
-	ShowVersion           bool     `json:"show_version"`
-	EnableMetrics         bool     `json:"enable_metrics"`
-	PrometheusRoute       string   `json:"prometheus_route"`
-	PrometheusNotesMetric string   `json:"prometheus_notes_metric"`
-	ObservationInterval   int      `json:"observation_internal"`
-	Languages             []string `json:"languages"`
-	Language              string   `json:"language"`
+	Title                  string   `json:"title"`
+	DatabaseType           string   `json:"database_type"`
+	DatabaseDsn            string   `json:"database_dsn"`
+	IDLength               int      `json:"id_length"`
+	PasswordLength         int      `json:"password_length"`
+	ExpirationInterval     int      `json:"expiration_interval"`
+	ListenAddress          string   `json:"listen_address"`
+	ListenPort             int      `json:"listen_port"`
+	Expirations            []int    `json:"expirations"`
+	Expiration             int      `json:"expiration"`
+	MaxUploadSize          int64    `json:"max_upload_size"`
+	ShowVersion            bool     `json:"show_version"`
+	EnableMetrics          bool     `json:"enable_metrics"`
+	PrometheusRoute        string   `json:"prometheus_route"`
+	PrometheusNotesMetric  string   `json:"prometheus_notes_metric"`
+	ObservationInterval    int      `json:"observation_internal"`
+	Languages              []string `json:"languages"`
+	Language               string   `json:"language"`
+	EnableUploadFileButton bool     `json:"enable_upload_file_button"`
 }
 
 func NewConfig() *Config {
@@ -69,7 +70,8 @@ func NewConfig() *Config {
 			"SQL",
 			"YAML",
 		},
-		Language: "text",
+		Language:               "text",
+		EnableUploadFileButton: true,
 	}
 }
 
diff --git a/src/server/server.go b/src/server/server.go
index 92dc217..1b406fe 100644
--- a/src/server/server.go
+++ b/src/server/server.go
@@ -186,14 +186,15 @@ func (h *GetProtectedNoteHandler) ServeHTTP(w http.ResponseWriter, r *http.Reque
 }
 
 type PageData struct {
-	Title       string
-	Version     string
-	Expirations []int
-	Expiration  int
-	Languages   []string
-	Err         error
-	URL         string
-	Note        *Note
+	Title                  string
+	Version                string
+	Expirations            []int
+	Expiration             int
+	Languages              []string
+	Err                    error
+	URL                    string
+	Note                   *Note
+	EnableUploadFileButton bool
 }
 
 type HomeHandler struct {
@@ -431,6 +432,7 @@ func (s *Server) Start() error {
 	if s.config.ShowVersion {
 		p.Version = s.version
 	}
+	p.EnableUploadFileButton = s.config.EnableUploadFileButton
 
 	templates, err := template.New("templates").Funcs(funcs).ParseFS(templatesFS, "templates/*.html")
 	if err != nil {
diff --git a/src/server/templates/index.html b/src/server/templates/index.html
index 0cf1d6d..4c18a78 100644
--- a/src/server/templates/index.html
+++ b/src/server/templates/index.html
@@ -31,9 +31,11 @@
                         value="delete-after-read" name="delete-after-read">
                     <label class="col-form-label col-form-label-sm" for="delete-after-read">Delete after read</label>
                 </div>
+                {{if .EnableUploadFileButton}}
                 <div class="col">
                     <input type="file" class="form-control" for="file" id="file" name="file" accept="text/plain" />
                 </div>
+                {{end}}
                 <div class="col">
                     <select class="form-select" aria-label="Expiration" id="expiration" name="expiration">
                         <option disabled>Expiration</option>