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custom_provider.go
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custom_provider.go
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package manager
import (
"errors"
"fmt"
"strings"
"time"
"unicode"
internal_errors "github.com/bricks-cloud/bricksllm/internal/errors"
"github.com/bricks-cloud/bricksllm/internal/provider/custom"
"github.com/bricks-cloud/bricksllm/internal/util"
)
type CustomProvidersStorage interface {
CreateCustomProvider(provider *custom.Provider) (*custom.Provider, error)
GetCustomProviders() ([]*custom.Provider, error)
GetCustomProviderByName(name string) (*custom.Provider, error)
GetCustomProvider(id string) (*custom.Provider, error)
UpdateCustomProvider(id string, provider *custom.UpdateProvider) (*custom.Provider, error)
}
type CustomProvidersMemStorage interface {
GetProvider(name string) *custom.Provider
GetRouteConfig(name, path string) *custom.RouteConfig
}
type CustomProvidersManager struct {
Storage CustomProvidersStorage
Mem CustomProvidersMemStorage
}
func NewCustomProvidersManager(s CustomProvidersStorage, mem CustomProvidersMemStorage) *CustomProvidersManager {
return &CustomProvidersManager{
Storage: s,
Mem: mem,
}
}
func containsSpace(str string) bool {
for _, c := range str {
if unicode.IsSpace(c) {
return true
}
}
return false
}
func gatherEmptyFieldsFromRouteConfig(index int, rc *custom.RouteConfig) []string {
invalidFields := []string{}
if len(rc.Path) == 0 {
invalidFields = append(invalidFields, fmt.Sprintf("route_configs.[%d].path", index))
}
if len(rc.TargetUrl) == 0 {
invalidFields = append(invalidFields, fmt.Sprintf("route_configs.[%d].target_url", index))
}
if len(rc.ModelLocation) == 0 {
invalidFields = append(invalidFields, fmt.Sprintf("route_configs.[%d].model_location", index))
}
if len(rc.RequestPromptLocation) == 0 {
invalidFields = append(invalidFields, fmt.Sprintf("route_configs.[%d].request_prompt_location", index))
}
if len(rc.ResponseCompletionLocation) == 0 {
invalidFields = append(invalidFields, fmt.Sprintf("route_configs.[%d].response_completion_location", index))
}
return invalidFields
}
func validateCustomProviderUpdate(existing *custom.Provider, updated *custom.UpdateProvider) error {
invalidFields := []string{}
pathToRouteMap := map[string]*custom.RouteConfig{}
for _, rc := range existing.RouteConfigs {
pathToRouteMap[rc.Path] = rc
}
for index, rc := range updated.RouteConfigs {
_, ok := pathToRouteMap[rc.Path]
if len(rc.StreamLocation) != 0 {
if len(rc.StreamEndWord) == 0 {
invalidFields = append(invalidFields, fmt.Sprintf("route_configs.[%d].stream_end_word", index))
}
if len(rc.StreamResponseCompletionLocation) == 0 {
invalidFields = append(invalidFields, fmt.Sprintf("route_configs.[%d].stream_response_completion_location", index))
}
}
if !ok {
duplicates := map[string]struct{}{}
_, ok := duplicates[rc.Path]
if ok {
return internal_errors.NewValidationError("route configs cannot contain duplicated paths")
}
if !ok {
duplicates[rc.Path] = struct{}{}
}
invalidFields = append(invalidFields, gatherEmptyFieldsFromRouteConfig(index, rc)...)
}
}
if len(invalidFields) != 0 {
return internal_errors.NewValidationError(fmt.Sprintf("empty fields in provider: %s", strings.Join(invalidFields, ",")))
}
return nil
}
func validateCustomProviderCreation(provider *custom.Provider) error {
invalidFields := []string{}
if provider.Provider == "openai" || provider.Provider == "anthropic" {
return internal_errors.NewValidationError("provider cannot be named openai or anthropic")
}
if len(provider.Provider) == 0 {
invalidFields = append(invalidFields, "provider")
}
if containsSpace(provider.Provider) {
return internal_errors.NewValidationError("provider cannot contain white space")
}
if len(provider.RouteConfigs) == 0 {
invalidFields = append(invalidFields, "route_configs")
}
if len(provider.RouteConfigs) != 0 {
for index, rc := range provider.RouteConfigs {
duplicates := map[string]struct{}{}
if containsSpace(rc.Path) {
return internal_errors.NewValidationError("route configs path cannot contain white space")
}
if !strings.HasPrefix(rc.Path, "/") {
return internal_errors.NewValidationError(`route configs path must start with "/"`)
}
_, ok := duplicates[rc.Path]
if ok {
return internal_errors.NewValidationError("route configs cannot contain duplicated paths")
}
if !ok {
duplicates[rc.Path] = struct{}{}
}
if len(rc.StreamLocation) != 0 {
if len(rc.StreamEndWord) == 0 {
invalidFields = append(invalidFields, fmt.Sprintf("route_configs.[%d].stream_end_word", index))
}
if len(rc.StreamResponseCompletionLocation) == 0 {
invalidFields = append(invalidFields, fmt.Sprintf("route_configs.[%d].stream_response_completion_location", index))
}
}
invalidFields = append(invalidFields, gatherEmptyFieldsFromRouteConfig(index, rc)...)
}
}
if len(provider.AuthenticationParam) != 0 && containsSpace(provider.AuthenticationParam) {
return internal_errors.NewValidationError("authentication_param cannot contain white space")
}
if len(invalidFields) != 0 {
return internal_errors.NewValidationError(fmt.Sprintf("empty fields in provider: %s", strings.Join(invalidFields, ",")))
}
return nil
}
type notFoundError interface {
Error() string
NotFound()
}
func (m *CustomProvidersManager) CreateCustomProvider(provider *custom.Provider) (*custom.Provider, error) {
err := validateCustomProviderCreation(provider)
if err != nil {
return nil, err
}
name := strings.ToLower(provider.Provider)
_, err = m.Storage.GetCustomProviderByName(name)
if err == nil {
return nil, errors.New("provider must be unique")
}
_, ok := err.(notFoundError)
if !ok {
return nil, err
}
provider.Id = util.NewUuid()
provider.CreatedAt = time.Now().Unix()
provider.UpdatedAt = time.Now().Unix()
provider.Provider = strings.ToLower(provider.Provider)
provider.AuthenticationParam = strings.ToLower(provider.AuthenticationParam)
return m.Storage.CreateCustomProvider(provider)
}
func (m *CustomProvidersManager) GetCustomProviderFromMem(name string) *custom.Provider {
return m.Mem.GetProvider(name)
}
func (m *CustomProvidersManager) GetRouteConfigFromMem(name, path string) *custom.RouteConfig {
return m.Mem.GetRouteConfig(name, path)
}
func (m *CustomProvidersManager) GetCustomProviders() ([]*custom.Provider, error) {
return m.Storage.GetCustomProviders()
}
func (m *CustomProvidersManager) UpdateCustomProvider(id string, provider *custom.UpdateProvider) (*custom.Provider, error) {
provider.UpdatedAt = time.Now().Unix()
existing, err := m.Storage.GetCustomProvider(id)
if err != nil {
return nil, err
}
err = validateCustomProviderUpdate(existing, provider)
if err != nil {
return nil, err
}
return m.Storage.UpdateCustomProvider(id, provider)
}