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Merge pull request #150 from githubnext/copilot/fix-health-endpoint-compliance
2 parents d2a13f7 + 0ffdfc1 commit 6bdae23

4 files changed

Lines changed: 160 additions & 33 deletions

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‎internal/server/health_test.go‎

Lines changed: 88 additions & 23 deletions
Original file line numberDiff line numberDiff line change
@@ -46,22 +46,47 @@ func TestHealthEndpoint_RoutedMode(t *testing.T) {
4646
t.Errorf("Expected Content-Type 'application/json', got '%s'", contentType)
4747
}
4848

49-
// Check response body
50-
var response map[string]string
49+
// Check response body - use map[string]interface{} to handle mixed types
50+
var response map[string]interface{}
5151
if err := json.NewDecoder(w.Body).Decode(&response); err != nil {
5252
t.Fatalf("Failed to decode JSON response: %v", err)
5353
}
5454

55-
if response["status"] != "ok" {
56-
t.Errorf("Expected status 'ok', got '%s'", response["status"])
55+
// Check status field - should be "healthy" or "unhealthy"
56+
status, ok := response["status"].(string)
57+
if !ok {
58+
t.Error("Expected 'status' field to be a string")
59+
}
60+
if status != "healthy" && status != "unhealthy" {
61+
t.Errorf("Expected status 'healthy' or 'unhealthy', got '%s'", status)
62+
}
63+
64+
// Check specVersion field (required by spec 8.1.1)
65+
specVersion, ok := response["specVersion"].(string)
66+
if !ok {
67+
t.Error("Expected 'specVersion' field to be a string")
68+
}
69+
if specVersion != MCPGatewaySpecVersion {
70+
t.Errorf("Expected specVersion '%s', got '%s'", MCPGatewaySpecVersion, specVersion)
5771
}
5872

59-
if response["protocolVersion"] != MCPProtocolVersion {
60-
t.Errorf("Expected protocolVersion '%s', got '%s'", MCPProtocolVersion, response["protocolVersion"])
73+
// Check gatewayVersion field (required by spec 8.1.1)
74+
gatewayVersion, ok := response["gatewayVersion"].(string)
75+
if !ok {
76+
t.Error("Expected 'gatewayVersion' field to be a string")
77+
}
78+
if gatewayVersion == "" {
79+
t.Error("Expected gatewayVersion to be non-empty")
6180
}
6281

63-
if response["version"] == "" {
64-
t.Error("Expected version to be non-empty")
82+
// Check servers field (required by spec 8.1.1)
83+
servers, ok := response["servers"].(map[string]interface{})
84+
if !ok {
85+
t.Error("Expected 'servers' field to be an object")
86+
}
87+
// With empty config, servers map should be empty
88+
if len(servers) != 0 {
89+
t.Errorf("Expected empty servers map with no configured servers, got %d servers", len(servers))
6590
}
6691
}
6792

@@ -101,22 +126,47 @@ func TestHealthEndpoint_UnifiedMode(t *testing.T) {
101126
t.Errorf("Expected Content-Type 'application/json', got '%s'", contentType)
102127
}
103128

104-
// Check response body
105-
var response map[string]string
129+
// Check response body - use map[string]interface{} to handle mixed types
130+
var response map[string]interface{}
106131
if err := json.NewDecoder(w.Body).Decode(&response); err != nil {
107132
t.Fatalf("Failed to decode JSON response: %v", err)
108133
}
109134

110-
if response["status"] != "ok" {
111-
t.Errorf("Expected status 'ok', got '%s'", response["status"])
135+
// Check status field - should be "healthy" or "unhealthy"
136+
status, ok := response["status"].(string)
137+
if !ok {
138+
t.Error("Expected 'status' field to be a string")
139+
}
140+
if status != "healthy" && status != "unhealthy" {
141+
t.Errorf("Expected status 'healthy' or 'unhealthy', got '%s'", status)
112142
}
113143

114-
if response["protocolVersion"] != MCPProtocolVersion {
115-
t.Errorf("Expected protocolVersion '%s', got '%s'", MCPProtocolVersion, response["protocolVersion"])
144+
// Check specVersion field (required by spec 8.1.1)
145+
specVersion, ok := response["specVersion"].(string)
146+
if !ok {
147+
t.Error("Expected 'specVersion' field to be a string")
148+
}
149+
if specVersion != MCPGatewaySpecVersion {
150+
t.Errorf("Expected specVersion '%s', got '%s'", MCPGatewaySpecVersion, specVersion)
116151
}
117152

118-
if response["version"] == "" {
119-
t.Error("Expected version to be non-empty")
153+
// Check gatewayVersion field (required by spec 8.1.1)
154+
gatewayVersion, ok := response["gatewayVersion"].(string)
155+
if !ok {
156+
t.Error("Expected 'gatewayVersion' field to be a string")
157+
}
158+
if gatewayVersion == "" {
159+
t.Error("Expected gatewayVersion to be non-empty")
160+
}
161+
162+
// Check servers field (required by spec 8.1.1)
163+
servers, ok := response["servers"].(map[string]interface{})
164+
if !ok {
165+
t.Error("Expected 'servers' field to be an object")
166+
}
167+
// With empty config, servers map should be empty
168+
if len(servers) != 0 {
169+
t.Errorf("Expected empty servers map with no configured servers, got %d servers", len(servers))
120170
}
121171
}
122172

@@ -151,20 +201,35 @@ func TestHealthEndpoint_NoAuth(t *testing.T) {
151201
}
152202

153203
// Verify JSON response
154-
var response map[string]string
204+
var response map[string]interface{}
155205
if err := json.NewDecoder(w.Body).Decode(&response); err != nil {
156206
t.Fatalf("Failed to decode JSON response: %v", err)
157207
}
158208

159-
if response["status"] != "ok" {
160-
t.Errorf("Expected status 'ok', got '%s'", response["status"])
209+
// Check status field - should be "healthy" or "unhealthy"
210+
status, ok := response["status"].(string)
211+
if !ok {
212+
t.Error("Expected 'status' field to be a string")
213+
}
214+
if status != "healthy" && status != "unhealthy" {
215+
t.Errorf("Expected status 'healthy' or 'unhealthy', got '%s'", status)
161216
}
162217

163-
if response["protocolVersion"] != MCPProtocolVersion {
164-
t.Errorf("Expected protocolVersion '%s', got '%s'", MCPProtocolVersion, response["protocolVersion"])
218+
// Check specVersion field (required by spec 8.1.1)
219+
specVersion, ok := response["specVersion"].(string)
220+
if !ok {
221+
t.Error("Expected 'specVersion' field to be a string")
222+
}
223+
if specVersion != MCPGatewaySpecVersion {
224+
t.Errorf("Expected specVersion '%s', got '%s'", MCPGatewaySpecVersion, specVersion)
165225
}
166226

167-
if response["version"] == "" {
168-
t.Error("Expected version to be non-empty")
227+
// Check gatewayVersion field (required by spec 8.1.1)
228+
gatewayVersion, ok := response["gatewayVersion"].(string)
229+
if !ok {
230+
t.Error("Expected 'gatewayVersion' field to be a string")
231+
}
232+
if gatewayVersion == "" {
233+
t.Error("Expected gatewayVersion to be non-empty")
169234
}
170235
}

‎internal/server/routed.go‎

Lines changed: 19 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -109,14 +109,28 @@ func CreateHTTPServerForRoutedMode(addr string, unifiedServer *UnifiedServer, ap
109109
log.Printf("Registered route: %s", route)
110110
}
111111

112-
// Health check
112+
// Health check (spec 8.1.1)
113113
healthHandler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
114114
w.Header().Set("Content-Type", "application/json")
115+
116+
// Get server status
117+
serverStatus := unifiedServer.GetServerStatus()
118+
119+
// Determine overall health based on server status
120+
overallStatus := "healthy"
121+
for _, status := range serverStatus {
122+
if status.Status == "error" {
123+
overallStatus = "unhealthy"
124+
break
125+
}
126+
}
127+
115128
w.WriteHeader(http.StatusOK)
116-
json.NewEncoder(w).Encode(map[string]string{
117-
"status": "ok",
118-
"protocolVersion": MCPProtocolVersion,
119-
"version": gatewayVersion,
129+
json.NewEncoder(w).Encode(map[string]interface{}{
130+
"status": overallStatus,
131+
"specVersion": MCPGatewaySpecVersion,
132+
"gatewayVersion": gatewayVersion,
133+
"servers": serverStatus,
120134
})
121135
})
122136
mux.Handle("/health", withResponseLogging(healthHandler))

‎internal/server/transport.go‎

Lines changed: 19 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -157,14 +157,28 @@ func CreateHTTPServerForMCP(addr string, unifiedServer *UnifiedServer, apiKey st
157157
mux.Handle("/mcp/", finalHandler)
158158
mux.Handle("/mcp", finalHandler)
159159

160-
// Health check
160+
// Health check (spec 8.1.1)
161161
healthHandler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
162162
w.Header().Set("Content-Type", "application/json")
163+
164+
// Get server status
165+
serverStatus := unifiedServer.GetServerStatus()
166+
167+
// Determine overall health based on server status
168+
overallStatus := "healthy"
169+
for _, status := range serverStatus {
170+
if status.Status == "error" {
171+
overallStatus = "unhealthy"
172+
break
173+
}
174+
}
175+
163176
w.WriteHeader(http.StatusOK)
164-
json.NewEncoder(w).Encode(map[string]string{
165-
"status": "ok",
166-
"protocolVersion": MCPProtocolVersion,
167-
"version": gatewayVersion,
177+
json.NewEncoder(w).Encode(map[string]interface{}{
178+
"status": overallStatus,
179+
"specVersion": MCPGatewaySpecVersion,
180+
"gatewayVersion": gatewayVersion,
181+
"servers": serverStatus,
168182
})
169183
})
170184
mux.Handle("/health", withResponseLogging(healthHandler))

‎internal/server/unified.go‎

Lines changed: 34 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -6,6 +6,7 @@ import (
66
"fmt"
77
"log"
88
"sync"
9+
"time"
910

1011
"github.com/githubnext/gh-aw-mcpg/internal/config"
1112
"github.com/githubnext/gh-aw-mcpg/internal/difc"
@@ -21,6 +22,9 @@ var logUnified = logger.New("server:unified")
2122
// MCPProtocolVersion is the MCP protocol version supported by this gateway
2223
const MCPProtocolVersion = "2024-11-05"
2324

25+
// MCPGatewaySpecVersion is the MCP Gateway Specification version this implementation conforms to
26+
const MCPGatewaySpecVersion = "1.3.0"
27+
2428
// gatewayVersion stores the gateway version, set at startup
2529
var gatewayVersion = "dev"
2630

@@ -35,13 +39,21 @@ func SetGatewayVersion(version string) {
3539
type Session struct {
3640
Token string
3741
SessionID string
42+
StartTime time.Time
43+
}
44+
45+
// ServerStatus represents the health status of a backend server
46+
type ServerStatus struct {
47+
Status string `json:"status"` // "running" | "stopped" | "error"
48+
Uptime int `json:"uptime"` // seconds since server was launched
3849
}
3950

4051
// NewSession creates a new Session with the given session ID and optional token
4152
func NewSession(sessionID, token string) *Session {
4253
return &Session{
4354
Token: token,
4455
SessionID: sessionID,
56+
StartTime: time.Now(),
4557
}
4658
}
4759

@@ -637,6 +649,28 @@ func (us *UnifiedServer) GetServerIDs() []string {
637649
return us.launcher.ServerIDs()
638650
}
639651

652+
// GetServerStatus returns the status of all configured backend servers
653+
func (us *UnifiedServer) GetServerStatus() map[string]ServerStatus {
654+
status := make(map[string]ServerStatus)
655+
656+
// Get all configured servers
657+
serverIDs := us.launcher.ServerIDs()
658+
659+
for _, serverID := range serverIDs {
660+
// Check if server has been launched by checking launcher connections
661+
// For now, we'll return "running" for all configured servers
662+
// and track uptime from when the gateway started
663+
// This is a simple implementation - a more sophisticated version
664+
// would track actual connection state per server
665+
status[serverID] = ServerStatus{
666+
Status: "running",
667+
Uptime: 0, // Will be properly tracked when servers are actually launched
668+
}
669+
}
670+
671+
return status
672+
}
673+
640674
// GetToolsForBackend returns tools for a specific backend with prefix stripped
641675
func (us *UnifiedServer) GetToolsForBackend(backendID string) []ToolInfo {
642676
us.toolsMu.RLock()

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