Custom headers (#61)

* Add: a CustomHeaders field of type map[string]string to RemoteQueryConfiguration for custom headers in remote requests.

* Add: custom header processing

* Add: custom header configuration to the remote client

* WithCustomHeader -> WithCustomHeaders

* use criticalHeaders

---------

Co-authored-by: shiro8613 <psp1070@gmail.com>

Author: QuintenQVD0

cmd/root.go

@@ -153,6 +153,7 @@ func rootCmdRun(cmd *cobra.Command, _ []string) {
 	pclient := remote.New(
 		config.Get().PanelLocation,
 		remote.WithCredentials(t.ID, t.Token),
+		remote.WithCustomHeaders(config.Get().RemoteQuery.CustomHeaders),
 		remote.WithHttpClient(&http.Client{
 			Timeout: time.Second * time.Duration(config.Get().RemoteQuery.Timeout),
 		}),

config/config.go

@@ -126,6 +126,12 @@ type RemoteQueryConfiguration struct {
 	// 50 servers is likely just as quick as two for 100 or one for 400, and will certainly
 	// be less likely to cause performance issues on the Panel.
 	BootServersPerPage int `default:"50" yaml:"boot_servers_per_page"`
+
+	//When using services like Cloudflare Access to manage access to 
+	//a specific system via an external authentication system, 
+	//it is possible to add special headers to bypass authentication. 
+	//The mentioned headers can be appended to queries sent from Wings to the panel.
+	CustomHeaders map[string]string `yaml:"custom_headers"`
 }
 
 // SystemConfiguration defines basic system configuration settings.

remote/http.go

@@ -42,6 +42,7 @@ type client struct {
 	tokenId     string
 	token       string
 	maxAttempts int
+	customHeaders map[string]string
 }
 
 // New returns a new HTTP request client that is used for making authenticated
@@ -69,6 +70,13 @@ func WithCredentials(id, token string) ClientOption {
 	}
 }
 
+// WithCustomHeaders sets custom headers to be used when making remote requests.
+func WithCustomHeaders(headers map[string]string) ClientOption {
+	return func(c *client) {
+		c.customHeaders = headers
+	}
+}
+
 // WithHttpClient sets the underlying HTTP client instance to use when making
 // requests to the Panel API.
 func WithHttpClient(httpClient *http.Client) ClientOption {
@@ -110,6 +118,19 @@ func (c *client) requestOnce(ctx context.Context, method, path string, body io.R
 	req.Header.Set("Accept", "application/json")
 	req.Header.Set("Content-Type", "application/json")
 	req.Header.Set("Authorization", fmt.Sprintf("Bearer %s.%s", c.tokenId, c.token))
+	
+	// Apply custom headers, but prevent overriding critical headers
+	criticalHeaders := map[string]bool{
+		"Authorization": true,
+		"User-Agent":    true,
+		"Accept":        true,
+		"Content-Type":  true,
+	}
+	for key, value := range c.customHeaders {
+		if !criticalHeaders[key] {
+			req.Header.Set(key, value)
+		}
+	}
 
 	// Call all opts functions to allow modifying the request
 	for _, o := range opts {