| 1 | package server |
| 2 | |
| 3 | import ( |
| 4 | "fmt" |
| 5 | "net/http" |
| 6 | "strings" |
| 7 | |
| 8 | "go.bigb.es/curator/internal/config" |
| 9 | ) |
| 10 | |
| 11 | // ParseAdminToken resolves an admin token value. |
| 12 | // If value starts with "@", the rest is treated as a file path and the token |
| 13 | // is read from the first non-empty, non-comment line. |
| 14 | func ParseAdminToken(value string) (string, error) { |
| 15 | resolved, err := config.ResolveValue(value) |
| 16 | if err != nil { |
| 17 | return "", err |
| 18 | } |
| 19 | if !strings.HasPrefix(value, "@") { |
| 20 | return value, nil |
| 21 | } |
| 22 | |
| 23 | for _, line := range strings.Split(resolved, "\n") { |
| 24 | token := strings.TrimSpace(line) |
| 25 | if token != "" && !strings.HasPrefix(token, "#") { |
| 26 | return token, nil |
| 27 | } |
| 28 | } |
| 29 | return "", fmt.Errorf("no token found in file") |
| 30 | } |
| 31 | |
| 32 | // ParseAuthTokens parses auth tokens from a value. |
| 33 | // If value starts with "@", the rest is treated as a file path |
| 34 | // (one token per line, # comments supported). |
| 35 | // Otherwise the value is split on commas. |
| 36 | func ParseAuthTokens(value string) (map[string]struct{}, error) { |
| 37 | resolved, err := config.ResolveValue(value) |
| 38 | if err != nil { |
| 39 | return nil, err |
| 40 | } |
| 41 | |
| 42 | if strings.HasPrefix(value, "@") { |
| 43 | return parseTokenLines(resolved), nil |
| 44 | } |
| 45 | |
| 46 | // Comma-separated tokens. |
| 47 | tokens := make(map[string]struct{}) |
| 48 | for _, raw := range strings.Split(resolved, ",") { |
| 49 | token := strings.TrimSpace(raw) |
| 50 | if token != "" { |
| 51 | tokens[token] = struct{}{} |
| 52 | } |
| 53 | } |
| 54 | return tokens, nil |
| 55 | } |
| 56 | |
| 57 | func parseTokenLines(data string) map[string]struct{} { |
| 58 | tokens := make(map[string]struct{}) |
| 59 | for _, line := range strings.Split(data, "\n") { |
| 60 | token := strings.TrimSpace(line) |
| 61 | if token != "" && !strings.HasPrefix(token, "#") { |
| 62 | tokens[token] = struct{}{} |
| 63 | } |
| 64 | } |
| 65 | return tokens |
| 66 | } |
| 67 | |
| 68 | func (s *Server) isAuthenticated(r *http.Request) bool { |
| 69 | if len(s.AuthTokens) == 0 { |
| 70 | return false |
| 71 | } |
| 72 | |
| 73 | auth := r.Header.Get("Authorization") |
| 74 | if token, ok := strings.CutPrefix(auth, "Bearer "); ok { |
| 75 | _, valid := s.AuthTokens[token] |
| 76 | return valid |
| 77 | } |
| 78 | |
| 79 | if _, password, ok := r.BasicAuth(); ok { |
| 80 | _, valid := s.AuthTokens[password] |
| 81 | return valid |
| 82 | } |
| 83 | |
| 84 | return false |
| 85 | } |
| 86 | |
| 87 | // CanAccessModule returns true if the request is allowed to access the module. |
| 88 | func (s *Server) CanAccessModule(modName string, r *http.Request) bool { |
| 89 | mod, ok := s.Resolver.ResolveModule(modName) |
| 90 | if !ok { |
| 91 | return false |
| 92 | } |
| 93 | |
| 94 | if !mod.Private { |
| 95 | return true |
| 96 | } |
| 97 | |
| 98 | return s.isAuthenticated(r) |
| 99 | } |
| 100 | |