|
| 1 | +package mcp |
| 2 | + |
| 3 | +import ( |
| 4 | + "context" |
| 5 | + "fmt" |
| 6 | + "io" |
| 7 | + "strings" |
| 8 | + |
| 9 | + "github.com/mark3labs/mcp-go/mcp" |
| 10 | + "github.com/mark3labs/mcp-go/server" |
| 11 | + "github.com/portainer/portainer-mcp/pkg/portainer/models" |
| 12 | + "github.com/portainer/portainer-mcp/pkg/toolgen" |
| 13 | +) |
| 14 | + |
| 15 | +func (s *PortainerMCPServer) AddDockerProxyFeatures() { |
| 16 | + if !s.readOnly { |
| 17 | + s.addToolIfExists(ToolDockerProxy, s.HandleDockerProxy()) |
| 18 | + } |
| 19 | +} |
| 20 | + |
| 21 | +func (s *PortainerMCPServer) HandleDockerProxy() server.ToolHandlerFunc { |
| 22 | + return func(ctx context.Context, request mcp.CallToolRequest) (*mcp.CallToolResult, error) { |
| 23 | + parser := toolgen.NewParameterParser(request) |
| 24 | + |
| 25 | + environmentId, err := parser.GetInt("environmentId", true) |
| 26 | + if err != nil { |
| 27 | + return nil, err |
| 28 | + } |
| 29 | + |
| 30 | + method, err := parser.GetString("method", true) |
| 31 | + if err != nil { |
| 32 | + return nil, err |
| 33 | + } |
| 34 | + if !isValidHTTPMethod(method) { |
| 35 | + return nil, fmt.Errorf("invalid method: %s", method) |
| 36 | + } |
| 37 | + |
| 38 | + dockerAPIPath, err := parser.GetString("dockerAPIPath", true) |
| 39 | + if err != nil { |
| 40 | + return nil, err |
| 41 | + } |
| 42 | + if !strings.HasPrefix(dockerAPIPath, "/") { |
| 43 | + return nil, fmt.Errorf("dockerAPIPath must start with a leading slash") |
| 44 | + } |
| 45 | + |
| 46 | + queryParams, err := parser.GetArrayOfObjects("queryParams", false) |
| 47 | + if err != nil { |
| 48 | + return nil, err |
| 49 | + } |
| 50 | + queryParamsMap, err := parseKeyValueMap(queryParams) |
| 51 | + if err != nil { |
| 52 | + return nil, fmt.Errorf("invalid query params: %w", err) |
| 53 | + } |
| 54 | + |
| 55 | + headers, err := parser.GetArrayOfObjects("headers", false) |
| 56 | + if err != nil { |
| 57 | + return nil, err |
| 58 | + } |
| 59 | + headersMap, err := parseKeyValueMap(headers) |
| 60 | + if err != nil { |
| 61 | + return nil, fmt.Errorf("invalid headers: %w", err) |
| 62 | + } |
| 63 | + |
| 64 | + body, err := parser.GetString("body", false) |
| 65 | + if err != nil { |
| 66 | + return nil, err |
| 67 | + } |
| 68 | + |
| 69 | + opts := models.DockerProxyRequestOptions{ |
| 70 | + EnvironmentID: environmentId, |
| 71 | + Path: dockerAPIPath, |
| 72 | + Method: method, |
| 73 | + QueryParams: queryParamsMap, |
| 74 | + Headers: headersMap, |
| 75 | + } |
| 76 | + |
| 77 | + if body != "" { |
| 78 | + opts.Body = strings.NewReader(body) |
| 79 | + } |
| 80 | + |
| 81 | + response, err := s.cli.ProxyDockerRequest(opts) |
| 82 | + if err != nil { |
| 83 | + return nil, fmt.Errorf("failed to send Docker API request: %w", err) |
| 84 | + } |
| 85 | + |
| 86 | + responseBody, err := io.ReadAll(response.Body) |
| 87 | + if err != nil { |
| 88 | + return nil, fmt.Errorf("failed to read Docker API response: %w", err) |
| 89 | + } |
| 90 | + |
| 91 | + return mcp.NewToolResultText(string(responseBody)), nil |
| 92 | + } |
| 93 | +} |
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