feat: add possibility to hide upload button (#25)

I was asked to add the possibility to hide the upload button to avoid users confuse this tool for a file sharing app.
This is only on the front.

No breaking changes, by default the button is displayed.

Co-authored-by: Thibault Piron <thibault.a.piron@gmail.com>
Reviewed-on: #25
Reviewed-by: Julien Riou <jriou@monitoring@riou.xyz>
Co-authored-by: tapiron <tapiron@monitoring@riou.xyz>
Co-committed-by: tapiron <tapiron@monitoring@riou.xyz>

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.
 

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,
 	}
 }
 

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 {

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>