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package github
import (
"context"
"encoding/json"
"fmt"
"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 ListGlobalSecurityAdvisories(t translations.TranslationHelperFunc) inventory.ServerTool {
return NewTool(
ToolsetMetadataSecurityAdvisories,
mcp.Tool{
Name: "list_global_security_advisories",
Description: t("TOOL_LIST_GLOBAL_SECURITY_ADVISORIES_DESCRIPTION", "List global security advisories from GitHub."),
Annotations: &mcp.ToolAnnotations{
Title: t("TOOL_LIST_GLOBAL_SECURITY_ADVISORIES_USER_TITLE", "List global security advisories"),
ReadOnlyHint: true,
},
InputSchema: &jsonschema.Schema{
Type: "object",
Properties: map[string]*jsonschema.Schema{
"ghsaId": {
Type: "string",
Description: "Filter by GitHub Security Advisory ID (format: GHSA-xxxx-xxxx-xxxx).",
},
"type": {
Type: "string",
Description: "Advisory type.",
Enum: []any{"reviewed", "malware", "unreviewed"},
Default: json.RawMessage(`"reviewed"`),
},
"cveId": {
Type: "string",
Description: "Filter by CVE ID.",
},
"ecosystem": {
Type: "string",
Description: "Filter by package ecosystem.",
Enum: []any{"actions", "composer", "erlang", "go", "maven", "npm", "nuget", "other", "pip", "pub", "rubygems", "rust"},
},
"severity": {
Type: "string",
Description: "Filter by severity.",
Enum: []any{"unknown", "low", "medium", "high", "critical"},
},
"cwes": {
Type: "array",
Description: "Filter by Common Weakness Enumeration IDs (e.g. [\"79\", \"284\", \"22\"]).",
Items: &jsonschema.Schema{
Type: "string",
},
},
"isWithdrawn": {
Type: "boolean",
Description: "Whether to only return withdrawn advisories.",
},
"affects": {
Type: "string",
Description: "Filter advisories by affected package or version (e.g. \"package1,package2@1.0.0\").",
},
"published": {
Type: "string",
Description: "Filter by publish date or date range (ISO 8601 date or range).",
},
"updated": {
Type: "string",
Description: "Filter by update date or date range (ISO 8601 date or range).",
},
"modified": {
Type: "string",
Description: "Filter by publish or update date or date range (ISO 8601 date or range).",
},
},
},
},
scopes.RequireAll(scopes.SecurityEvents),
func(ctx context.Context, deps ToolDependencies, _ *mcp.CallToolRequest, args map[string]any) (*mcp.CallToolResult, any, error) {
client, err := deps.GetClient(ctx)
if err != nil {
return nil, nil, fmt.Errorf("failed to get GitHub client: %w", err)
}
ghsaID, err := OptionalParam[string](args, "ghsaId")
if err != nil {
return utils.NewToolResultError(fmt.Sprintf("invalid ghsaId: %v", err)), nil, nil
}
typ, err := OptionalParam[string](args, "type")
if err != nil {
return utils.NewToolResultError(fmt.Sprintf("invalid type: %v", err)), nil, nil
}
cveID, err := OptionalParam[string](args, "cveId")
if err != nil {
return utils.NewToolResultError(fmt.Sprintf("invalid cveId: %v", err)), nil, nil
}
eco, err := OptionalParam[string](args, "ecosystem")
if err != nil {
return utils.NewToolResultError(fmt.Sprintf("invalid ecosystem: %v", err)), nil, nil
}
sev, err := OptionalParam[string](args, "severity")
if err != nil {
return utils.NewToolResultError(fmt.Sprintf("invalid severity: %v", err)), nil, nil
}
cwes, err := OptionalStringArrayParam(args, "cwes")
if err != nil {
return utils.NewToolResultError(fmt.Sprintf("invalid cwes: %v", err)), nil, nil
}
isWithdrawn, err := OptionalParam[bool](args, "isWithdrawn")
if err != nil {
return utils.NewToolResultError(fmt.Sprintf("invalid isWithdrawn: %v", err)), nil, nil
}
affects, err := OptionalParam[string](args, "affects")
if err != nil {
return utils.NewToolResultError(fmt.Sprintf("invalid affects: %v", err)), nil, nil
}
published, err := OptionalParam[string](args, "published")
if err != nil {
return utils.NewToolResultError(fmt.Sprintf("invalid published: %v", err)), nil, nil
}
updated, err := OptionalParam[string](args, "updated")
if err != nil {
return utils.NewToolResultError(fmt.Sprintf("invalid updated: %v", err)), nil, nil
}
modified, err := OptionalParam[string](args, "modified")
if err != nil {
return utils.NewToolResultError(fmt.Sprintf("invalid modified: %v", err)), nil, nil
}
opts := &github.ListGlobalSecurityAdvisoriesOptions{}
if ghsaID != "" {
opts.GHSAID = &ghsaID
}
if typ != "" {
opts.Type = &typ
}
if cveID != "" {
opts.CVEID = &cveID
}
if eco != "" {
opts.Ecosystem = &eco
}
if sev != "" {
opts.Severity = &sev
}
if len(cwes) > 0 {
opts.CWEs = cwes
}
if isWithdrawn {
opts.IsWithdrawn = &isWithdrawn
}
if affects != "" {
opts.Affects = &affects
}
if published != "" {
opts.Published = &published
}
if updated != "" {
opts.Updated = &updated
}
if modified != "" {
opts.Modified = &modified
}
advisories, resp, err := client.SecurityAdvisories.ListGlobalSecurityAdvisories(ctx, opts)
if err != nil {
return nil, nil, fmt.Errorf("failed to list global security advisories: %w", err)
}
defer func() { _ = resp.Body.Close() }()
if resp.StatusCode != http.StatusOK {
body, err := io.ReadAll(resp.Body)
if err != nil {
return nil, nil, fmt.Errorf("failed to read response body: %w", err)
}
return ghErrors.NewGitHubAPIStatusErrorResponse(ctx, "failed to list advisories", resp, body), nil, nil
}
r, err := json.Marshal(advisories)
if err != nil {
return nil, nil, fmt.Errorf("failed to marshal advisories: %w", err)
}
result := utils.NewToolResultText(string(r))
// Global advisories come from the world-readable GitHub Advisory
// Database (public) but contain externally authored prose
// (untrusted).
result = attachStaticIFCLabel(ctx, deps, result, ifc.LabelGlobalSecurityAdvisory())
return result, nil, nil
},
)
}
func ListRepositorySecurityAdvisories(t translations.TranslationHelperFunc) inventory.ServerTool {
return NewTool(
ToolsetMetadataSecurityAdvisories,
mcp.Tool{
Name: "list_repository_security_advisories",
Description: t("TOOL_LIST_REPOSITORY_SECURITY_ADVISORIES_DESCRIPTION", "List repository security advisories for a GitHub repository."),
Annotations: &mcp.ToolAnnotations{
Title: t("TOOL_LIST_REPOSITORY_SECURITY_ADVISORIES_USER_TITLE", "List repository security advisories"),
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.",
},
"direction": {
Type: "string",
Description: "Sort direction.",
Enum: []any{"asc", "desc"},
},
"sort": {
Type: "string",
Description: "Sort field.",
Enum: []any{"created", "updated", "published"},
},
"state": {
Type: "string",
Description: "Filter by advisory state.",
Enum: []any{"triage", "draft", "published", "closed"},
},
},
Required: []string{"owner", "repo"},
},
},
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
}
direction, err := OptionalParam[string](args, "direction")
if err != nil {
return utils.NewToolResultError(err.Error()), nil, nil
}
sortField, err := OptionalParam[string](args, "sort")
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
}
client, err := deps.GetClient(ctx)
if err != nil {
return nil, nil, fmt.Errorf("failed to get GitHub client: %w", err)
}
opts := &github.ListRepositorySecurityAdvisoriesOptions{}
if direction != "" {
opts.Direction = direction
}
if sortField != "" {
opts.Sort = sortField
}
if state != "" {
opts.State = state
}
advisories, resp, err := client.SecurityAdvisories.ListRepositorySecurityAdvisories(ctx, owner, repo, opts)
if err != nil {
return nil, nil, fmt.Errorf("failed to list repository security advisories: %w", err)
}
defer func() { _ = resp.Body.Close() }()
if resp.StatusCode != http.StatusOK {
body, err := io.ReadAll(resp.Body)
if err != nil {
return nil, nil, fmt.Errorf("failed to read response body: %w", err)
}
return ghErrors.NewGitHubAPIStatusErrorResponse(ctx, "failed to list repository advisories", resp, body), nil, nil
}
r, err := json.Marshal(advisories)
if err != nil {
return nil, nil, fmt.Errorf("failed to marshal advisories: %w", err)
}
result := utils.NewToolResultText(string(r))
// Repository advisories carry externally authored prose (untrusted).
// Confidentiality follows repo visibility, but draft/triage/closed
// advisories are not world-readable even on a public repo, so the
// result is only public when every returned advisory is published.
allPublished := allAdvisoriesPublished(advisories)
result = attachRepoVisibilityIFCLabel(ctx, deps, client, owner, repo, result,
func(isPrivate bool) ifc.SecurityLabel {
return ifc.LabelRepositorySecurityAdvisory(isPrivate, allPublished)
})
return result, nil, nil
},
)
}
func GetGlobalSecurityAdvisory(t translations.TranslationHelperFunc) inventory.ServerTool {
return NewTool(
ToolsetMetadataSecurityAdvisories,
mcp.Tool{
Name: "get_global_security_advisory",
Description: t("TOOL_GET_GLOBAL_SECURITY_ADVISORY_DESCRIPTION", "Get a global security advisory"),
Annotations: &mcp.ToolAnnotations{
Title: t("TOOL_GET_GLOBAL_SECURITY_ADVISORY_USER_TITLE", "Get a global security advisory"),
ReadOnlyHint: true,
},
InputSchema: &jsonschema.Schema{
Type: "object",
Properties: map[string]*jsonschema.Schema{
"ghsaId": {
Type: "string",
Description: "GitHub Security Advisory ID (format: GHSA-xxxx-xxxx-xxxx).",
},
},
Required: []string{"ghsaId"},
},
},
scopes.RequireAll(scopes.SecurityEvents),
func(ctx context.Context, deps ToolDependencies, _ *mcp.CallToolRequest, args map[string]any) (*mcp.CallToolResult, any, error) {
client, err := deps.GetClient(ctx)
if err != nil {
return nil, nil, fmt.Errorf("failed to get GitHub client: %w", err)
}
ghsaID, err := RequiredParam[string](args, "ghsaId")
if err != nil {
return utils.NewToolResultError(fmt.Sprintf("invalid ghsaId: %v", err)), nil, nil
}
advisory, resp, err := client.SecurityAdvisories.GetGlobalSecurityAdvisories(ctx, ghsaID)
if err != nil {
return nil, nil, fmt.Errorf("failed to get advisory: %w", err)
}
defer func() { _ = resp.Body.Close() }()
if resp.StatusCode != http.StatusOK {
body, err := io.ReadAll(resp.Body)
if err != nil {
return nil, nil, fmt.Errorf("failed to read response body: %w", err)
}
return ghErrors.NewGitHubAPIStatusErrorResponse(ctx, "failed to get advisory", resp, body), nil, nil
}
r, err := json.Marshal(advisory)
if err != nil {
return nil, nil, fmt.Errorf("failed to marshal advisory: %w", err)
}
result := utils.NewToolResultText(string(r))
// A global advisory is world-readable (public) but externally
// authored (untrusted).
result = attachStaticIFCLabel(ctx, deps, result, ifc.LabelGlobalSecurityAdvisory())
return result, nil, nil
},
)
}
func ListOrgRepositorySecurityAdvisories(t translations.TranslationHelperFunc) inventory.ServerTool {
return NewTool(
ToolsetMetadataSecurityAdvisories,
mcp.Tool{
Name: "list_org_repository_security_advisories",
Description: t("TOOL_LIST_ORG_REPOSITORY_SECURITY_ADVISORIES_DESCRIPTION", "List repository security advisories for a GitHub organization."),
Annotations: &mcp.ToolAnnotations{
Title: t("TOOL_LIST_ORG_REPOSITORY_SECURITY_ADVISORIES_USER_TITLE", "List org repository security advisories"),
ReadOnlyHint: true,
},
InputSchema: &jsonschema.Schema{
Type: "object",
Properties: map[string]*jsonschema.Schema{
"org": {
Type: "string",
Description: "The organization login.",
},
"direction": {
Type: "string",
Description: "Sort direction.",
Enum: []any{"asc", "desc"},
},
"sort": {
Type: "string",
Description: "Sort field.",
Enum: []any{"created", "updated", "published"},
},
"state": {
Type: "string",
Description: "Filter by advisory state.",
Enum: []any{"triage", "draft", "published", "closed"},
},
},
Required: []string{"org"},
},
},
scopes.RequireAll(scopes.SecurityEvents),
func(ctx context.Context, deps ToolDependencies, _ *mcp.CallToolRequest, args map[string]any) (*mcp.CallToolResult, any, error) {
org, err := RequiredParam[string](args, "org")
if err != nil {
return utils.NewToolResultError(err.Error()), nil, nil
}
direction, err := OptionalParam[string](args, "direction")
if err != nil {
return utils.NewToolResultError(err.Error()), nil, nil
}
sortField, err := OptionalParam[string](args, "sort")
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
}
client, err := deps.GetClient(ctx)
if err != nil {
return nil, nil, fmt.Errorf("failed to get GitHub client: %w", err)
}
opts := &github.ListRepositorySecurityAdvisoriesOptions{}
if direction != "" {
opts.Direction = direction
}
if sortField != "" {
opts.Sort = sortField
}
if state != "" {
opts.State = state
}
advisories, resp, err := client.SecurityAdvisories.ListRepositorySecurityAdvisoriesForOrg(ctx, org, opts)
if err != nil {
return nil, nil, fmt.Errorf("failed to list organization repository security advisories: %w", err)
}
defer func() { _ = resp.Body.Close() }()
if resp.StatusCode != http.StatusOK {
body, err := io.ReadAll(resp.Body)
if err != nil {
return nil, nil, fmt.Errorf("failed to read response body: %w", err)
}
return ghErrors.NewGitHubAPIStatusErrorResponse(ctx, "failed to list organization repository advisories", resp, body), nil, nil
}
r, err := json.Marshal(advisories)
if err != nil {
return nil, nil, fmt.Errorf("failed to marshal advisories: %w", err)
}
result := utils.NewToolResultText(string(r))
// Org-wide advisory listings span the organization's repositories
// (including private ones) and are restricted to org members, so
// they are conservatively labeled private-untrusted (isPrivate=true,
// which forces private regardless of publication state).
result = attachStaticIFCLabel(ctx, deps, result, ifc.LabelRepositorySecurityAdvisory(true, false))
return result, nil, nil
},
)
}
// allAdvisoriesPublished reports whether every advisory in the slice is in the
// "published" state. Repository security advisories can also be in draft,
// triage, or closed states, none of which are world-readable even on a public
// repository. An empty slice is treated as published (true) since there is no
// non-public content to protect. Used to decide whether a repository advisory
// listing may carry a public confidentiality label.
func allAdvisoriesPublished(advisories []*github.SecurityAdvisory) bool {
for _, advisory := range advisories {
if advisory.GetState() != "published" {
return false
}
}
return true
}
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