taskcafe/internal/graph/graph.go
2021-04-30 23:25:48 -05:00

289 lines
8.3 KiB
Go

package graph
import (
"context"
"database/sql"
"errors"
"net/http"
"os"
"reflect"
"strings"
"time"
"github.com/99designs/gqlgen/graphql"
"github.com/99designs/gqlgen/graphql/handler"
"github.com/99designs/gqlgen/graphql/handler/extension"
"github.com/99designs/gqlgen/graphql/handler/lru"
"github.com/99designs/gqlgen/graphql/handler/transport"
"github.com/99designs/gqlgen/graphql/playground"
"github.com/google/uuid"
"github.com/jordanknott/taskcafe/internal/db"
"github.com/jordanknott/taskcafe/internal/logger"
"github.com/jordanknott/taskcafe/internal/utils"
log "github.com/sirupsen/logrus"
"github.com/vektah/gqlparser/v2/gqlerror"
)
// NewHandler returns a new graphql endpoint handler.
func NewHandler(repo db.Repository, emailConfig utils.EmailConfig) http.Handler {
c := Config{
Resolvers: &Resolver{
Repository: repo,
EmailConfig: emailConfig,
},
}
c.Directives.HasRole = func(ctx context.Context, obj interface{}, next graphql.Resolver, roles []RoleLevel, level ActionLevel, typeArg ObjectType) (interface{}, error) {
userID, ok := GetUser(ctx)
if !ok {
return nil, errors.New("user must be logged in")
}
user, err := repo.GetUserAccountByID(ctx, userID)
if err != nil {
return nil, err
}
if user.RoleCode == "admin" {
return next(ctx)
} else if level == ActionLevelOrg {
return nil, errors.New("must be an org admin")
}
var subjectID uuid.UUID
in := graphql.GetFieldContext(ctx).Args["input"]
val := reflect.ValueOf(in) // could be any underlying type
if val.Kind() == reflect.Ptr {
val = reflect.Indirect(val)
}
var fieldName string
switch typeArg {
case ObjectTypeTeam:
fieldName = "TeamID"
case ObjectTypeTask:
fieldName = "TaskID"
case ObjectTypeTaskGroup:
fieldName = "TaskGroupID"
case ObjectTypeTaskChecklist:
fieldName = "TaskChecklistID"
case ObjectTypeTaskChecklistItem:
fieldName = "TaskChecklistItemID"
default:
fieldName = "ProjectID"
}
logger.New(ctx).WithFields(log.Fields{"typeArg": typeArg, "fieldName": fieldName}).Info("getting field by name")
subjectField := val.FieldByName(fieldName)
if !subjectField.IsValid() {
logger.New(ctx).Error("subject field name does not exist on input type")
return nil, errors.New("subject field name does not exist on input type")
}
if fieldName == "TeamID" && subjectField.IsNil() {
// Is a personal project, no check
// TODO: add config setting to disable personal projects
return next(ctx)
}
subjectID, ok = subjectField.Interface().(uuid.UUID)
if !ok {
logger.New(ctx).Error("error while casting subject UUID")
return nil, errors.New("error while casting subject uuid")
}
if level == ActionLevelProject {
logger.New(ctx).WithFields(log.Fields{"subjectID": subjectID}).Info("fetching subject ID by typeArg")
if typeArg == ObjectTypeTask {
subjectID, err = repo.GetProjectIDForTask(ctx, subjectID)
}
if typeArg == ObjectTypeTaskGroup {
subjectID, err = repo.GetProjectIDForTaskGroup(ctx, subjectID)
}
if typeArg == ObjectTypeTaskChecklist {
subjectID, err = repo.GetProjectIDForTaskChecklist(ctx, subjectID)
}
if typeArg == ObjectTypeTaskChecklistItem {
subjectID, err = repo.GetProjectIDForTaskChecklistItem(ctx, subjectID)
}
if err != nil {
logger.New(ctx).WithError(err).Error("error while getting subject ID")
return nil, err
}
projectRoles, err := GetProjectRoles(ctx, repo, subjectID)
if err != nil {
if err == sql.ErrNoRows {
return nil, &gqlerror.Error{
Message: "not authorized",
Extensions: map[string]interface{}{
"code": "401",
},
}
}
logger.New(ctx).WithError(err).Error("error while getting project roles")
return nil, err
}
for _, validRole := range roles {
logger.New(ctx).WithFields(log.Fields{"validRole": validRole}).Info("checking role")
if CompareRoleLevel(projectRoles.TeamRole, validRole) || CompareRoleLevel(projectRoles.ProjectRole, validRole) {
logger.New(ctx).WithFields(log.Fields{"teamRole": projectRoles.TeamRole, "projectRole": projectRoles.ProjectRole}).Info("is team or project role")
return next(ctx)
}
}
return nil, &gqlerror.Error{
Message: "not authorized",
Extensions: map[string]interface{}{
"code": "401",
},
}
} else if level == ActionLevelTeam {
role, err := repo.GetTeamRoleForUserID(ctx, db.GetTeamRoleForUserIDParams{UserID: userID, TeamID: subjectID})
if err != nil {
logger.New(ctx).WithError(err).Error("error while getting team roles for user ID")
return nil, err
}
for _, validRole := range roles {
if CompareRoleLevel(role.RoleCode, validRole) || CompareRoleLevel(role.RoleCode, validRole) {
return next(ctx)
}
}
return nil, &gqlerror.Error{
Message: "not authorized",
Extensions: map[string]interface{}{
"code": "401",
},
}
}
return nil, &gqlerror.Error{
Message: "bad path",
Extensions: map[string]interface{}{
"code": "500",
},
}
}
srv := handler.New(NewExecutableSchema(c))
srv.AddTransport(transport.Websocket{
KeepAlivePingInterval: 10 * time.Second,
})
srv.AddTransport(transport.Options{})
srv.AddTransport(transport.GET{})
srv.AddTransport(transport.POST{})
srv.AddTransport(transport.MultipartForm{})
srv.SetQueryCache(lru.New(1000))
srv.Use(extension.AutomaticPersistedQuery{
Cache: lru.New(100),
})
if isProd := os.Getenv("PRODUCTION") == "true"; isProd {
srv.Use(extension.FixedComplexityLimit(10))
} else {
srv.Use(extension.Introspection{})
}
return srv
}
// NewPlaygroundHandler returns a new GraphQL Playground handler.
func NewPlaygroundHandler(endpoint string) http.Handler {
return playground.Handler("GraphQL Playground", endpoint)
}
// GetUserID retrieves the UserID out of a context
func GetUserID(ctx context.Context) (uuid.UUID, bool) {
userID, ok := ctx.Value(utils.UserIDKey).(uuid.UUID)
return userID, ok
}
// GetUser retrieves both the user id & user role out of a context
func GetUser(ctx context.Context) (uuid.UUID, bool) {
userID, userOK := GetUserID(ctx)
return userID, userOK
}
// GetProjectRoles retrieves the team & project role for the given project ID
func GetProjectRoles(ctx context.Context, r db.Repository, projectID uuid.UUID) (db.GetUserRolesForProjectRow, error) {
userID, ok := GetUserID(ctx)
if !ok {
return db.GetUserRolesForProjectRow{}, errors.New("user ID is not found")
}
return r.GetUserRolesForProject(ctx, db.GetUserRolesForProjectParams{UserID: userID, ProjectID: projectID})
}
// CompareRoleLevel compares a string against a role level
func CompareRoleLevel(a string, b RoleLevel) bool {
if strings.ToLower(a) == strings.ToLower(b.String()) {
return true
}
return false
}
// ConvertToRoleCode converts a role code string to a RoleCode type
func ConvertToRoleCode(r string) RoleCode {
if r == RoleCodeAdmin.String() {
return RoleCodeAdmin
}
if r == RoleCodeMember.String() {
return RoleCodeMember
}
return RoleCodeObserver
}
// GetEntityType converts integer to EntityType enum
func GetEntityType(entityType int32) EntityType {
switch entityType {
case 1:
return EntityTypeTask
default:
panic("Not a valid entity type!")
}
}
// GetActionType converts integer to ActionType enum
func GetActionType(actionType int32) ActionType {
switch actionType {
case 1:
return ActionTypeTaskMemberAdded
default:
panic("Not a valid entity type!")
}
}
type MemberType string
const (
MemberTypeInvited MemberType = "INVITED"
MemberTypeJoined MemberType = "JOINED"
)
type MasterEntry struct {
MemberType MemberType
ID uuid.UUID
}
const (
TASK_ADDED_TO_TASK_GROUP int32 = 1
TASK_MOVED_TO_TASK_GROUP int32 = 2
TASK_MARK_COMPLETE int32 = 3
TASK_MARK_INCOMPLETE int32 = 4
TASK_DUE_DATE_CHANGED int32 = 5
TASK_DUE_DATE_ADDED int32 = 6
TASK_DUE_DATE_REMOVED int32 = 7
TASK_CHECKLIST_CHANGED int32 = 8
TASK_CHECKLIST_ADDED int32 = 9
TASK_CHECKLIST_REMOVED int32 = 10
)
func NotAuthorized() error {
return &gqlerror.Error{
Message: "Not authorized",
Extensions: map[string]interface{}{
"code": "UNAUTHENTICATED",
},
}
}
func IsProjectPublic(ctx context.Context, repo db.Repository, projectID uuid.UUID) (bool, error) {
publicOn, err := repo.GetPublicOn(ctx, projectID)
if err != nil {
return false, err
}
if !publicOn.Valid {
return false, nil
}
return true, nil
}