mirror of
https://github.com/infiniflow/ragflow.git
synced 2026-06-08 08:07:21 +08:00
5951e2b564
### What problem does this PR solve? As title ### Type of change - [x] New Feature (non-breaking change which adds functionality) --------- Signed-off-by: Jin Hai <haijin.chn@gmail.com>
126 lines
3.5 KiB
Go
126 lines
3.5 KiB
Go
//
|
|
// Copyright 2026 The InfiniFlow Authors. All Rights Reserved.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
//
|
|
|
|
package common
|
|
|
|
import (
|
|
"fmt"
|
|
"path"
|
|
"regexp"
|
|
"strings"
|
|
|
|
"github.com/google/uuid"
|
|
)
|
|
|
|
// splitNameCounter splits a filename into base name and counter
|
|
// Handles names in format "filename(123)" pattern
|
|
//
|
|
// Parameters:
|
|
// - filename: The filename to split
|
|
//
|
|
// Returns:
|
|
// - string: The base name without counter
|
|
// - *int: The counter value, or nil if no counter exists
|
|
//
|
|
// Example:
|
|
//
|
|
// splitNameCounter("test(5)") returns ("test", 5)
|
|
// splitNameCounter("test") returns ("test", nil)
|
|
func splitNameCounter(filename string) (string, *int) {
|
|
re := regexp.MustCompile(`^(.+)\((\d+)\)$`)
|
|
matches := re.FindStringSubmatch(filename)
|
|
if len(matches) >= 3 {
|
|
counter := -1
|
|
fmt.Sscanf(matches[2], "%d", &counter)
|
|
stem := strings.TrimRight(matches[1], " ")
|
|
return stem, &counter
|
|
}
|
|
return filename, nil
|
|
}
|
|
|
|
// DuplicateName generates a unique name by appending a counter if the name already exists
|
|
// It tries up to 1000 times to generate a unique name
|
|
//
|
|
// Parameters:
|
|
// - queryFunc: Function to check if a name already exists (returns true if exists)
|
|
// - name: The original name
|
|
// - tenantID: The tenant ID for name uniqueness check
|
|
//
|
|
// Returns:
|
|
// - string: A unique name (either original or with counter appended)
|
|
//
|
|
// Example:
|
|
//
|
|
// DuplicateName(func(name string, tid string) bool { return false }, "test", "tenant1") returns "test"
|
|
// DuplicateName(func(name string, tid string) bool { return true }, "test", "tenant1") returns "test(1)"
|
|
func DuplicateName(queryFunc func(name string, tenantID string) bool, name string, tenantID string) (string, error) {
|
|
const maxRetries = 1000
|
|
|
|
originalName := name
|
|
currentName := name
|
|
retries := 0
|
|
|
|
for retries < maxRetries {
|
|
if !queryFunc(currentName, tenantID) {
|
|
return currentName, nil
|
|
}
|
|
|
|
stem, counter := splitNameCounter(currentName)
|
|
ext := path.Ext(stem)
|
|
stemBase := strings.TrimSuffix(stem, ext)
|
|
|
|
newCounter := 1
|
|
if counter != nil {
|
|
newCounter = *counter + 1
|
|
}
|
|
|
|
currentName = fmt.Sprintf("%s(%d)%s", stemBase, newCounter, ext)
|
|
retries++
|
|
|
|
if err := ValidateName(currentName); err != nil {
|
|
return "", err
|
|
}
|
|
}
|
|
|
|
return "", fmt.Errorf("failed to generate unique name after %d attempts, conflict name: %s", maxRetries, originalName)
|
|
}
|
|
|
|
const AppNameLimit = 256
|
|
|
|
func ValidateName(name string) error {
|
|
// Validate name is not empty after trimming
|
|
trimmedName := strings.TrimSpace(name)
|
|
if trimmedName == "" {
|
|
return fmt.Errorf("name can't be empty")
|
|
}
|
|
|
|
// Validate name length in bytes (not characters) - same as Python len(search_name.encode("utf-8"))
|
|
if len([]byte(name)) > AppNameLimit {
|
|
return fmt.Errorf("name length is %d which is large than %d", len([]byte(name)), AppNameLimit)
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
// GenerateUUID generates a UUID without dashes
|
|
func GenerateUUID() string {
|
|
newID := strings.ReplaceAll(uuid.New().String(), "-", "")
|
|
if len(newID) > 32 {
|
|
newID = newID[:32]
|
|
}
|
|
return newID
|
|
}
|