Files
CLICD/backend/internal/api/apikey.go
T
2026-06-08 19:25:55 +08:00

496 lines
14 KiB
Go

package api
import (
"crypto/rand"
"crypto/subtle"
"encoding/hex"
"encoding/json"
"fmt"
"net"
"net/http"
"strings"
"time"
"clicd/internal/config"
"golang.org/x/crypto/argon2"
)
type ApiKey struct {
ID string `json:"id"`
Name string `json:"name"`
Key string `json:"key,omitempty"`
Prefix string `json:"prefix"`
IPWhitelist string `json:"ip_whitelist"`
CreatedAt string `json:"created_at"`
LastUsed string `json:"last_used"`
Scopes []string `json:"scopes,omitempty"`
ExpiresAt string `json:"expires_at,omitempty"`
Disabled bool `json:"disabled,omitempty"`
ContainerUUIDs []string `json:"container_uuids,omitempty"`
LastUsedIP string `json:"last_used_ip,omitempty"`
}
type apiKeyRequest struct {
Name string `json:"name"`
IPWhitelist string `json:"ip_whitelist"`
Scopes []string `json:"scopes"`
ExpiresAt string `json:"expires_at"`
Disabled bool `json:"disabled"`
ContainerUUIDs []string `json:"container_uuids"`
}
var defaultApiKeyScopes = []string{
"dashboard:read",
"container:read",
"task:read",
"image:read",
"snapshot:read",
"routing:read",
"ipv6:read",
"host:read",
}
// HandleApiKeys handles GET (list) and POST (create) for API keys
func HandleApiKeys(w http.ResponseWriter, r *http.Request) {
switch r.Method {
case http.MethodGet:
if !requireScope(w, r, "apikey:read") {
return
}
listApiKeys(w, r)
case http.MethodPost:
if !requireScope(w, r, "apikey:create") {
return
}
createApiKey(w, r)
default:
jsonResponse(w, http.StatusMethodNotAllowed, APIResponse{Success: false, Message: "Method not allowed"})
}
}
// HandleApiKeyDelete handles PATCH and DELETE for a specific API key
func HandleApiKeyDelete(w http.ResponseWriter, r *http.Request) {
switch r.Method {
case http.MethodPatch:
if !requireScope(w, r, "apikey:update") {
return
}
updateApiKey(w, r)
case http.MethodDelete:
if !requireScope(w, r, "apikey:delete") {
return
}
deleteApiKey(w, r)
default:
jsonResponse(w, http.StatusMethodNotAllowed, APIResponse{Success: false, Message: "Method not allowed"})
}
}
func apiKeyIDFromPath(path string) string {
path = strings.TrimPrefix(path, "/api/api-keys/")
path = strings.TrimPrefix(path, "/api/v1/api-keys/")
return strings.Trim(path, "/")
}
func listApiKeys(w http.ResponseWriter, r *http.Request) {
keys := make([]ApiKey, 0)
for _, k := range config.AppConfig.ApiKeys {
keys = append(keys, apiKeyResponse(k))
}
jsonResponse(w, http.StatusOK, APIResponse{Success: true, Data: keys})
}
func createApiKey(w http.ResponseWriter, r *http.Request) {
var req apiKeyRequest
if err := json.NewDecoder(r.Body).Decode(&req); err != nil || strings.TrimSpace(req.Name) == "" {
jsonResponse(w, http.StatusBadRequest, APIResponse{Success: false, Message: "Name is required"})
return
}
if req.ExpiresAt != "" && !validApiKeyTime(req.ExpiresAt) {
jsonResponse(w, http.StatusBadRequest, APIResponse{Success: false, Message: "Invalid expiration date"})
return
}
// Generate key: clicd_sk_ + 32 hex chars
rawBytes := make([]byte, 16)
if _, err := rand.Read(rawBytes); err != nil {
jsonResponse(w, http.StatusInternalServerError, APIResponse{Success: false, Message: "Failed to generate API key"})
return
}
rawKey := "clicd_sk_" + hex.EncodeToString(rawBytes)
keyHash, err := hashAPIKey(rawKey)
if err != nil {
jsonResponse(w, http.StatusInternalServerError, APIResponse{Success: false, Message: "Failed to store API key"})
return
}
now := time.Now().Format("2006-01-02 15:04:05")
scopes := normalizeRequestedScopes(req.Scopes, defaultApiKeyScopes)
key := config.ApiKeyConfig{
ID: generateShortID(),
Name: strings.TrimSpace(req.Name),
KeyHash: keyHash,
Prefix: rawKey[:13] + "...",
IPWhitelist: strings.TrimSpace(req.IPWhitelist),
CreatedAt: now,
Scopes: scopes,
ExpiresAt: strings.TrimSpace(req.ExpiresAt),
Disabled: req.Disabled,
ContainerUUIDs: normalizeStringSlice(req.ContainerUUIDs),
}
config.AppConfig.ApiKeys = append(config.AppConfig.ApiKeys, key)
if err := config.SaveConfig(); err != nil {
jsonResponse(w, http.StatusInternalServerError, APIResponse{Success: false, Message: "Failed to save API key"})
return
}
auditRequest(r, "apikey.create", key.Name, "scopes="+strings.Join(key.Scopes, ","), true, "")
resp := apiKeyResponse(key)
resp.Key = rawKey
jsonResponse(w, http.StatusCreated, APIResponse{
Success: true,
Message: "API key created. Save this key now - it won't be shown again.",
Data: resp,
})
}
func updateApiKey(w http.ResponseWriter, r *http.Request) {
keyID := apiKeyIDFromPath(r.URL.Path)
if keyID == "" {
jsonResponse(w, http.StatusBadRequest, APIResponse{Success: false, Message: "Key ID required"})
return
}
var req apiKeyRequest
if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
jsonResponse(w, http.StatusBadRequest, APIResponse{Success: false, Message: "Invalid request body"})
return
}
if req.ExpiresAt != "" && !validApiKeyTime(req.ExpiresAt) {
jsonResponse(w, http.StatusBadRequest, APIResponse{Success: false, Message: "Invalid expiration date"})
return
}
for i := range config.AppConfig.ApiKeys {
if config.AppConfig.ApiKeys[i].ID != keyID {
continue
}
if strings.TrimSpace(req.Name) != "" {
config.AppConfig.ApiKeys[i].Name = strings.TrimSpace(req.Name)
}
config.AppConfig.ApiKeys[i].IPWhitelist = strings.TrimSpace(req.IPWhitelist)
if len(req.Scopes) > 0 {
config.AppConfig.ApiKeys[i].Scopes = normalizeStringSlice(req.Scopes)
}
config.AppConfig.ApiKeys[i].ExpiresAt = strings.TrimSpace(req.ExpiresAt)
config.AppConfig.ApiKeys[i].Disabled = req.Disabled
config.AppConfig.ApiKeys[i].ContainerUUIDs = normalizeStringSlice(req.ContainerUUIDs)
if err := config.SaveConfig(); err != nil {
jsonResponse(w, http.StatusInternalServerError, APIResponse{Success: false, Message: "Failed to save API key"})
return
}
auditRequest(r, "apikey.update", config.AppConfig.ApiKeys[i].Name, "scopes="+strings.Join(config.AppConfig.ApiKeys[i].Scopes, ","), true, "")
jsonResponse(w, http.StatusOK, APIResponse{Success: true, Data: apiKeyResponse(config.AppConfig.ApiKeys[i])})
return
}
jsonResponse(w, http.StatusNotFound, APIResponse{Success: false, Message: "API key not found"})
}
func deleteApiKey(w http.ResponseWriter, r *http.Request) {
keyID := apiKeyIDFromPath(r.URL.Path)
if keyID == "" {
jsonResponse(w, http.StatusBadRequest, APIResponse{Success: false, Message: "Key ID required"})
return
}
name := keyID
for _, k := range config.AppConfig.ApiKeys {
if k.ID == keyID {
name = k.Name
break
}
}
config.DeleteApiKey(keyID)
auditRequest(r, "apikey.delete", name, "", true, "")
jsonResponse(w, http.StatusOK, APIResponse{Success: true, Message: "API key deleted"})
}
func apiKeyResponse(k config.ApiKeyConfig) ApiKey {
return ApiKey{
ID: k.ID,
Name: k.Name,
Prefix: k.Prefix,
IPWhitelist: k.IPWhitelist,
CreatedAt: k.CreatedAt,
LastUsed: k.LastUsed,
Scopes: normalizeApiKeyScopes(k.Scopes),
ExpiresAt: k.ExpiresAt,
Disabled: k.Disabled,
ContainerUUIDs: k.ContainerUUIDs,
LastUsedIP: k.LastUsedIP,
}
}
func generateShortID() string {
b := make([]byte, 4)
rand.Read(b)
return hex.EncodeToString(b)
}
const (
apiKeyHashPrefix = "argon2id"
apiKeyHashTime = uint32(3)
apiKeyHashMemory = uint32(64 * 1024)
apiKeyHashThreads = uint8(1)
apiKeyHashSaltLength = 16
apiKeyHashKeyLength = uint32(32)
)
// hashAPIKey stores API keys using a salted slow password-hash style function.
func hashAPIKey(key string) (string, error) {
salt := make([]byte, apiKeyHashSaltLength)
if _, err := rand.Read(salt); err != nil {
return "", err
}
return hashAPIKeyWithSalt(key, salt), nil
}
func hashAPIKeyWithSalt(key string, salt []byte) string {
digest := argon2.IDKey([]byte(key), salt, apiKeyHashTime, apiKeyHashMemory, apiKeyHashThreads, apiKeyHashKeyLength)
return fmt.Sprintf("%s$v=19$m=%d,t=%d,p=%d$%s$%s",
apiKeyHashPrefix,
apiKeyHashMemory,
apiKeyHashTime,
apiKeyHashThreads,
hex.EncodeToString(salt),
hex.EncodeToString(digest),
)
}
func verifyAPIKeyHash(rawKey, storedHash string) bool {
parts := strings.Split(storedHash, "$")
if len(parts) != 5 || parts[0] != apiKeyHashPrefix || parts[1] != "v=19" {
return false
}
var memory, iterations uint32
var threads uint8
if _, err := fmt.Sscanf(parts[2], "m=%d,t=%d,p=%d", &memory, &iterations, &threads); err != nil {
return false
}
if memory != apiKeyHashMemory || iterations != apiKeyHashTime || threads != apiKeyHashThreads {
return false
}
salt, err := hex.DecodeString(parts[3])
if err != nil || len(salt) == 0 {
return false
}
expected, err := hex.DecodeString(parts[4])
if err != nil || len(expected) == 0 {
return false
}
digest := argon2.IDKey([]byte(rawKey), salt, iterations, memory, threads, uint32(len(expected)))
return subtle.ConstantTimeCompare(digest, expected) == 1
}
func legacyHashKey(key string) string {
b := make([]byte, 32)
for i := range key {
b[i%32] ^= key[i]
}
return hex.EncodeToString(b)
}
func matchApiKey(rawKey string) (idx int, needsRehash bool) {
legacyHashed := legacyHashKey(rawKey)
for i, k := range config.AppConfig.ApiKeys {
if verifyAPIKeyHash(rawKey, k.KeyHash) {
return i, false
}
if subtle.ConstantTimeCompare([]byte(k.KeyHash), []byte(legacyHashed)) == 1 {
return i, true
}
}
return -1, false
}
// validateApiKey checks if the given key is valid and IP is allowed.
func validateApiKey(rawKey, clientIP string) bool {
_, ok := validateApiKeyDetails(rawKey, clientIP)
return ok
}
func validateApiKeyDetails(rawKey, clientIP string) (*config.ApiKeyConfig, bool) {
idx, needsRehash := matchApiKey(rawKey)
if idx < 0 {
return nil, false
}
k := &config.AppConfig.ApiKeys[idx]
if k.Disabled || apiKeyExpired(k.ExpiresAt) {
return nil, false
}
if clientIP != "" && k.IPWhitelist != "" && !isIPAllowed(clientIP, k.IPWhitelist) {
return nil, false
}
if needsRehash {
if newHash, err := hashAPIKey(rawKey); err == nil {
config.AppConfig.ApiKeys[idx].KeyHash = newHash
config.SaveConfig()
}
}
if len(k.Scopes) == 0 {
k.Scopes = []string{"*"}
}
return k, true
}
func validateApiKeyRequest(r *http.Request) (*config.ApiKeyConfig, bool) {
apiKey := apiKeyFromRequest(r)
if apiKey == "" {
return nil, false
}
key, ok := validateApiKeyDetails(apiKey, clientIP(r))
if !ok {
return nil, false
}
updateApiKeyLastUsedForKey(key, clientIP(r))
return key, true
}
func authContextFromAPIKey(key *config.ApiKeyConfig) AuthContext {
actor := "api:" + key.ID
if key.Name != "" {
actor = "api:" + key.Name
}
return AuthContext{
Type: authTypeAPIKey,
ApiKeyID: key.ID,
ApiKeyName: key.Name,
Actor: actor,
Scopes: normalizeApiKeyScopes(key.Scopes),
ContainerUUIDs: key.ContainerUUIDs,
}
}
func apiKeyFromRequest(r *http.Request) string {
if apiKey := strings.TrimSpace(r.Header.Get("X-API-Key")); apiKey != "" {
return apiKey
}
auth := r.Header.Get("Authorization")
if strings.HasPrefix(auth, "Bearer clicd_sk_") {
return strings.TrimPrefix(auth, "Bearer ")
}
return ""
}
func isValidApiKeyRequest(r *http.Request) bool {
_, ok := validateApiKeyRequest(r)
return ok
}
// isIPAllowed checks if clientIP matches any entry in the whitelist
func isIPAllowed(clientIP, whitelist string) bool {
clientIP = normalizeIPString(clientIP)
client := net.ParseIP(clientIP)
if client == nil {
return false
}
for _, entry := range strings.Split(whitelist, "\n") {
entry = strings.TrimSpace(entry)
if entry == "" {
continue
}
if strings.Contains(entry, "/") {
_, network, err := net.ParseCIDR(entry)
if err == nil && network.Contains(client) {
return true
}
continue
}
if allowed := net.ParseIP(normalizeIPString(entry)); allowed != nil && allowed.Equal(client) {
return true
}
}
return false
}
func normalizeIPString(s string) string {
s = strings.TrimSpace(s)
if host, _, err := net.SplitHostPort(s); err == nil {
return strings.Trim(host, "[]")
}
return strings.Trim(s, "[]")
}
func ipInCIDR(ipStr, cidr string) bool {
ip := net.ParseIP(normalizeIPString(ipStr))
_, network, err := net.ParseCIDR(cidr)
return err == nil && ip != nil && network.Contains(ip)
}
// updateApiKeyLastUsed marks the key as recently used.
func updateApiKeyLastUsed(rawKey string) {
key, ok := validateApiKeyDetails(rawKey, "")
if !ok {
return
}
updateApiKeyLastUsedForKey(key, "")
}
func updateApiKeyLastUsedForKey(key *config.ApiKeyConfig, ip string) {
key.LastUsed = time.Now().Format("2006-01-02 15:04:05")
if ip != "" {
key.LastUsedIP = ip
}
config.SaveConfig()
}
// ApiKeyMiddleware authenticates requests via X-API-Key header or Authorization bearer.
func ApiKeyMiddleware(next http.HandlerFunc) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
key, ok := validateApiKeyRequest(r)
if !ok {
jsonResponse(w, http.StatusUnauthorized, APIResponse{Success: false, Message: "Invalid API key or IP not in whitelist"})
return
}
next(w, withAuthContext(r, authContextFromAPIKey(key)))
}
}
func normalizeApiKeyScopes(scopes []string) []string {
return normalizeRequestedScopes(scopes, []string{"*"})
}
func normalizeRequestedScopes(scopes []string, fallback []string) []string {
result := normalizeStringSlice(scopes)
if len(result) == 0 {
return append([]string(nil), fallback...)
}
return result
}
func normalizeStringSlice(values []string) []string {
seen := map[string]bool{}
result := make([]string, 0, len(values))
for _, value := range values {
value = strings.TrimSpace(value)
if value == "" || seen[value] {
continue
}
seen[value] = true
result = append(result, value)
}
return result
}
func validApiKeyTime(value string) bool {
_, err := time.ParseInLocation("2006-01-02 15:04:05", value, time.Local)
return err == nil
}
func apiKeyExpired(value string) bool {
if strings.TrimSpace(value) == "" {
return false
}
expiresAt, err := time.ParseInLocation("2006-01-02 15:04:05", value, time.Local)
return err == nil && !time.Now().Before(expiresAt)
}