Added host URL normalization

proxmox/api_client.go

@@ -7,6 +7,7 @@ import (
 	"fmt"
 	"net"
 	"net/http"
+	"strings"
 	"sync"
 	"time"
 
@@ -55,7 +56,7 @@ func NewApiClient(endpoints []string, tokenId string, secret string, checkInterv
 	// Prepare API endpoints.
 	for _, endpoint := range endpoints {
 		apiEndpoint := ApiEndpoint{
-			host:  endpoint,
+			host:  normalizeApiHost(endpoint),
 			alive: false,
 		}
 		instance.endpoints = append(instance.endpoints, &apiEndpoint)
@@ -86,6 +87,11 @@ func NewApiClient(endpoints []string, tokenId string, secret string, checkInterv
 	return &instance
 }
 
+// normalizeApiHost ensures API paths can be appended to either IP- or DNS-based hosts.
+func normalizeApiHost(host string) string {
+	return strings.TrimRight(strings.TrimSpace(host), "/") + "/"
+}
+
 // Check endpoint liveness state.
 func (instance *ApiClient) checkEndpointsLiveness() {
 	// We want to make sure other routines won't make any requests until we have checked for alive connections.

proxmox/api_client_test.go

@@ -0,0 +1,49 @@
+package proxmox
+
+import (
+	"testing"
+	"time"
+)
+
+func TestNewApiClientNormalizesEndpointHosts(t *testing.T) {
+	tests := []struct {
+		name string
+		host string
+		want string
+	}{
+		{
+			name: "IP without trailing slash",
+			host: "https://192.168.0.10:8006",
+			want: "https://192.168.0.10:8006/",
+		},
+		{
+			name: "IP with trailing slash",
+			host: "https://192.168.0.10:8006/",
+			want: "https://192.168.0.10:8006/",
+		},
+		{
+			name: "DNS without trailing slash",
+			host: "https://pve.example.com:8006",
+			want: "https://pve.example.com:8006/",
+		},
+		{
+			name: "DNS with trailing slash",
+			host: "https://pve.example.com:8006/",
+			want: "https://pve.example.com:8006/",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			client := NewApiClient([]string{tt.host}, "token", "secret", time.Second)
+			defer client.httpClient.CloseIdleConnections()
+
+			if got := client.endpoints[0].host; got != tt.want {
+				t.Fatalf("normalized endpoint host = %q, want %q", got, tt.want)
+			}
+			if got := client.endpoints[0].host + "api2/json/"; got != tt.want+"api2/json/" {
+				t.Fatalf("liveness URL = %q, want %q", got, tt.want+"api2/json/")
+			}
+		})
+	}
+}