75 lines
1.9 KiB
Go
75 lines
1.9 KiB
Go
/*
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* Copyright 2025 coze-dev Authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package builtin
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import (
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"crypto/sha256"
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"encoding/base64"
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"fmt"
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"math/rand"
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"path"
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"strings"
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"time"
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"github.com/coze-dev/coze-studio/backend/infra/contract/document"
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)
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const baseWord = "1Aa2Bb3Cc4Dd5Ee6Ff7Gg8Hh9Ii0JjKkLlMmNnOoPpQqRrSsTtUuVvWwXxYyZz"
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const knowledgePrefix = "BIZ_KNOWLEDGE"
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const imgSrcFormat = `<img src="" data-tos-key="%s">`
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func createSecret(uid int64, fileType string) string {
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num := 10
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input := fmt.Sprintf("upload_%d_Ma*9)fhi_%d_gou_%s_rand_%d", uid, time.Now().Unix(), fileType, rand.Intn(100000))
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// 做md5，取前20个,// mapIntToBase62 把数字映射到 Base62
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hash := sha256.Sum256([]byte(fmt.Sprintf("%s", input)))
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hashString := base64.StdEncoding.EncodeToString(hash[:])
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if len(hashString) > num {
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hashString = hashString[:num]
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}
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result := ""
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for _, char := range hashString {
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index := int(char) % 62
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result += string(baseWord[index])
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}
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return result
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}
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func getExtension(uri string) string {
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if uri == "" {
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return ""
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}
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fileExtension := path.Base(uri)
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ext := path.Ext(fileExtension)
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if ext != "" {
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return strings.TrimPrefix(ext, ".")
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}
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return ""
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}
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func getCreatorIDFromExtraMeta(extraMeta map[string]any) int64 {
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if extraMeta == nil {
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return 0
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}
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if uid, ok := extraMeta[document.MetaDataKeyCreatorID]; ok {
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if uidInt, ok := uid.(int64); ok {
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return uidInt
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}
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}
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return 0
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}
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