dragonfly/pkg/idgen/task_id.go

63 lines
1.6 KiB
Go

/*
* Copyright 2020 The Dragonfly Authors
*
* 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 idgen
import (
"strings"
"d7y.io/dragonfly/v2/pkg/rpc/base"
"d7y.io/dragonfly/v2/pkg/util/digestutils"
"d7y.io/dragonfly/v2/pkg/util/net/urlutils"
)
func taskID(url string, meta *base.UrlMeta, ignoreRange bool) string {
var filters []string
if meta != nil && meta.Filter != "" {
filters = strings.Split(meta.Filter, "&")
}
var data []string
data = append(data, urlutils.FilterURLParam(url, filters))
if meta != nil {
if meta.Digest != "" {
data = append(data, meta.Digest)
}
if !ignoreRange && meta.Range != "" {
data = append(data, meta.Range)
}
if meta.Tag != "" {
data = append(data, meta.Tag)
}
}
return digestutils.Sha256(data...)
}
// TaskID generates a task id.
// filter is separated by & character.
func TaskID(url string, meta *base.UrlMeta) string {
return taskID(url, meta, false)
}
// ParentTaskID generates a task id like TaskID, but without range.
// this func is used to check the parent tasks for ranged requests
func ParentTaskID(url string, meta *base.UrlMeta) string {
return taskID(url, meta, true)
}