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code_scanning.go

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v1.12.0

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code_scanning.go

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package github

import (

"context"

"encoding/json"

"io"

"net/http"

ghErrors "github.com/github/github-mcp-server/pkg/errors"

"github.com/github/github-mcp-server/pkg/ifc"

"github.com/github/github-mcp-server/pkg/inventory"

"github.com/github/github-mcp-server/pkg/scopes"

"github.com/github/github-mcp-server/pkg/translations"

"github.com/github/github-mcp-server/pkg/utils"

"github.com/google/go-github/v89/github"

"github.com/google/jsonschema-go/jsonschema"

"github.com/modelcontextprotocol/go-sdk/mcp"

)

func GetCodeScanningAlert(t translations.TranslationHelperFunc) inventory.ServerTool {

return NewTool(

ToolsetMetadataCodeSecurity,

mcp.Tool{

Name: "get_code_scanning_alert",

Description: t("TOOL_GET_CODE_SCANNING_ALERT_DESCRIPTION", "Get details of a specific code scanning alert in a GitHub repository."),

Annotations: &mcp.ToolAnnotations{

Title: t("TOOL_GET_CODE_SCANNING_ALERT_USER_TITLE", "Get code scanning alert"),

ReadOnlyHint: true,

},

InputSchema: &jsonschema.Schema{

Type: "object",

Properties: map[string]*jsonschema.Schema{

"owner": {

Type: "string",

Description: "The owner of the repository.",

},

"repo": {

Type: "string",

Description: "The name of the repository.",

},

"alertNumber": {

Type: "number",

Description: "The number of the alert.",

},

},

Required: []string{"owner", "repo", "alertNumber"},

},

},

scopes.RequireAll(scopes.SecurityEvents),

func(ctx context.Context, deps ToolDependencies, _ *mcp.CallToolRequest, args map[string]any) (*mcp.CallToolResult, any, error) {

owner, err := RequiredParam[string](args, "owner")

if err != nil {

return utils.NewToolResultError(err.Error()), nil, nil

}

repo, err := RequiredParam[string](args, "repo")

if err != nil {

return utils.NewToolResultError(err.Error()), nil, nil

}

alertNumber, err := RequiredInt(args, "alertNumber")

if err != nil {

return utils.NewToolResultError(err.Error()), nil, nil

}

client, err := deps.GetClient(ctx)

if err != nil {

return utils.NewToolResultErrorFromErr("failed to get GitHub client", err), nil, nil

}

alert, resp, err := client.CodeScanning.GetAlert(ctx, owner, repo, int64(alertNumber))

if err != nil {

return ghErrors.NewGitHubAPIErrorResponse(ctx,

"failed to get alert",

resp,

err,

), nil, nil

}

defer func() { _ = resp.Body.Close() }()

if resp.StatusCode != http.StatusOK {

body, err := io.ReadAll(resp.Body)

if err != nil {

return utils.NewToolResultErrorFromErr("failed to read response body", err), nil, nil

}

return ghErrors.NewGitHubAPIStatusErrorResponse(ctx, "failed to get alert", resp, body), nil, nil

}

r, err := json.Marshal(alert)

if err != nil {

return utils.NewToolResultErrorFromErr("failed to marshal alert", err), nil, nil

}

result := utils.NewToolResultText(string(r))

// Code scanning alerts are access-restricted regardless of repo

// visibility and embed attacker-influenceable code snippets, so the

// label is always private-untrusted.

result = attachStaticIFCLabel(ctx, deps, result, ifc.LabelSecurityAlert())

return result, nil, nil

},

)

}

func ListCodeScanningAlerts(t translations.TranslationHelperFunc) inventory.ServerTool {

schema := &jsonschema.Schema{

Type: "object",

Properties: map[string]*jsonschema.Schema{

"owner": {

Type: "string",

Description: "The owner of the repository.",

},

"repo": {

Type: "string",

Description: "The name of the repository.",

},

"state": {

Type: "string",

Description: "Filter code scanning alerts by state. Defaults to open",

Enum: []any{"open", "closed", "dismissed", "fixed"},

Default: json.RawMessage(`"open"`),

},

"ref": {

Type: "string",

Description: "The Git reference for the results you want to list.",

},

"severity": {

Type: "string",

Description: "Filter code scanning alerts by severity",

Enum: []any{"critical", "high", "medium", "low", "warning", "note", "error"},

},

"tool_name": {

Type: "string",

Description: "The name of the tool used for code scanning.",

},

},

Required: []string{"owner", "repo"},

}

WithPagination(schema)

return NewTool(

ToolsetMetadataCodeSecurity,

mcp.Tool{

Name: "list_code_scanning_alerts",

Description: t("TOOL_LIST_CODE_SCANNING_ALERTS_DESCRIPTION", "List code scanning alerts in a GitHub repository."),

Annotations: &mcp.ToolAnnotations{

Title: t("TOOL_LIST_CODE_SCANNING_ALERTS_USER_TITLE", "List code scanning alerts"),

ReadOnlyHint: true,

},

InputSchema: schema,

},

scopes.RequireAll(scopes.SecurityEvents),

func(ctx context.Context, deps ToolDependencies, _ *mcp.CallToolRequest, args map[string]any) (*mcp.CallToolResult, any, error) {

owner, err := RequiredParam[string](args, "owner")

if err != nil {

return utils.NewToolResultError(err.Error()), nil, nil

}

repo, err := RequiredParam[string](args, "repo")

if err != nil {

return utils.NewToolResultError(err.Error()), nil, nil

}

ref, err := OptionalParam[string](args, "ref")

if err != nil {

return utils.NewToolResultError(err.Error()), nil, nil

}

state, err := OptionalParam[string](args, "state")

if err != nil {

return utils.NewToolResultError(err.Error()), nil, nil

}

severity, err := OptionalParam[string](args, "severity")

if err != nil {

return utils.NewToolResultError(err.Error()), nil, nil

}

toolName, err := OptionalParam[string](args, "tool_name")

if err != nil {

return utils.NewToolResultError(err.Error()), nil, nil

}

pagination, err := OptionalPaginationParams(args)

if err != nil {

return utils.NewToolResultError(err.Error()), nil, nil

}

client, err := deps.GetClient(ctx)

if err != nil {

return utils.NewToolResultErrorFromErr("failed to get GitHub client", err), nil, nil

}

alerts, resp, err := client.CodeScanning.ListAlertsForRepo(ctx, owner, repo, &github.AlertListOptions{

Ref: ref,

State: state,

Severity: severity,

ToolName: toolName,

ListOptions: github.ListOptions{

Page: pagination.Page,

PerPage: pagination.PerPage,

},

})

if err != nil {

return ghErrors.NewGitHubAPIErrorResponse(ctx,

"failed to list alerts",

resp,

err,

), nil, nil

}

defer func() { _ = resp.Body.Close() }()

if resp.StatusCode != http.StatusOK {

body, err := io.ReadAll(resp.Body)

if err != nil {

return utils.NewToolResultErrorFromErr("failed to read response body", err), nil, nil

}

return ghErrors.NewGitHubAPIStatusErrorResponse(ctx, "failed to list alerts", resp, body), nil, nil

}

r, err := json.Marshal(alerts)

if err != nil {

return utils.NewToolResultErrorFromErr("failed to marshal alerts", err), nil, nil

}

result := utils.NewToolResultText(string(r))

// Code scanning alerts are access-restricted regardless of repo

// visibility and embed attacker-influenceable code snippets, so the

// label is always private-untrusted.

result = attachStaticIFCLabel(ctx, deps, result, ifc.LabelSecurityAlert())

return result, nil, nil

},

)

}