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bedrock.go
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bedrock.go
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package bedrock
import (
"context"
"encoding/json"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/credentials"
"github.com/aws/aws-sdk-go/aws/session"
"github.com/aws/aws-sdk-go/service/bedrockruntime"
"github.com/deepfence/ThreatMapper/deepfence_server/model"
"github.com/deepfence/ThreatMapper/deepfence_utils/encryption"
"github.com/go-playground/validator/v10"
)
func New(ctx context.Context, req model.AddGenerativeAiBedrockIntegration) (*Bedrock, error) {
bedrockIntegration := Bedrock{
AWSAccessKey: req.AWSAccessKey,
AWSSecretKey: req.AWSSecretKey,
AWSRegion: req.AWSRegion,
UseIAMRole: req.UseIAMRole,
ModelID: req.ModelID,
}
return &bedrockIntegration, nil
}
func NewFromDBEntry(ctx context.Context, config json.RawMessage) (*Bedrock, error) {
var bedrockIntegration Bedrock
err := json.Unmarshal(config, &bedrockIntegration)
if err != nil {
return nil, err
}
return &bedrockIntegration, nil
}
func (b *Bedrock) ValidateConfig(validate *validator.Validate) error {
return validate.Struct(b)
}
func (b *Bedrock) VerifyAuth(ctx context.Context) error {
var err error
if b.UseIAMRole {
_, err = session.NewSession(&aws.Config{
Region: aws.String(b.AWSRegion),
})
} else {
_, err = session.NewSession(&aws.Config{
Region: aws.String(b.AWSRegion),
Credentials: credentials.NewStaticCredentials(b.AWSAccessKey, b.AWSSecretKey, ""),
})
}
if err != nil {
return err
}
return nil
}
func (b *Bedrock) EncryptSecret(aes encryption.AES) error {
var err error
b.AWSSecretKey, err = aes.Encrypt(b.AWSSecretKey)
return err
}
func (b *Bedrock) DecryptSecret(aes encryption.AES) error {
var err error
b.AWSSecretKey, err = aes.Decrypt(b.AWSSecretKey)
return err
}
func (b *Bedrock) Message(ctx context.Context, message string, dataChan chan string) error {
var sess *session.Session
var err error
if b.UseIAMRole {
sess, err = session.NewSession(&aws.Config{
Region: aws.String(b.AWSRegion),
})
} else {
sess, err = session.NewSession(&aws.Config{
Region: aws.String(b.AWSRegion),
Credentials: credentials.NewStaticCredentials(b.AWSAccessKey, b.AWSSecretKey, ""),
})
}
if err != nil {
return err
}
svc := bedrockruntime.New(sess)
body := BedrockModelBody[b.ModelID]
body[BedrockModelBodyInputKey[b.ModelID]] = body[BedrockModelBodyInputKey[b.ModelID]].(string) + message + BedrockModelBodyInputSuffix[b.ModelID]
bodyBytes, err := json.Marshal(body)
if err != nil {
return err
}
resp, err := svc.InvokeModel(&bedrockruntime.InvokeModelInput{
Accept: &acceptHeader,
Body: bodyBytes,
ContentType: &contentTypeHeader,
ModelId: &b.ModelID,
})
if err != nil {
return err
}
var modelResponse BedrockResponse
err = json.Unmarshal(resp.Body, &modelResponse)
if err != nil {
return err
}
switch b.ModelID {
case ModelAnthorpicClaudeV2, ModelAnthorpicClaudeInstantV1:
dataChan <- modelResponse.Completion
case ModelAmazonTitanTextLiteV1, ModelAmazonTitanTextExpressV1:
for _, result := range modelResponse.Results {
dataChan <- result.OutputText
}
case AI21LabsJurassic2UltraV1, AI21LabsJurassic2MidV1:
for _, completion := range modelResponse.Completions {
dataChan <- completion.Data.Text
}
case MetaLlama2Chat13BV1:
dataChan <- modelResponse.Generation
case CohereCommandTextV14, CohereCommandLightTextV14:
for _, generation := range modelResponse.Generations {
dataChan <- generation.Text
}
}
return nil
}