wehub-resource-sync
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62 lines
1.6 KiB
Go
62 lines
1.6 KiB
Go
// Licensed to the LF AI & Data foundation under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. 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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package funcutil
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import (
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"fmt"
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"math/rand"
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)
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var letterRunes = []byte("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ")
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// RandomBytes returns a batch of random string
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func RandomBytes(n int) []byte {
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b := make([]byte, n)
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for i := range b {
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b[i] = letterRunes[rand.Intn(len(letterRunes))]
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}
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return b
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}
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// RandomString returns a batch of random string
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func RandomString(n int) string {
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return string(RandomBytes(n))
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}
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// GenRandomBytes generates a random bytes.
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func GenRandomBytes() []byte {
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l := rand.Uint64()%10 + 1
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b := make([]byte, l)
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if _, err := rand.Read(b); err != nil {
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return nil
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}
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return b
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}
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func GenRandomBytesWithLength(length int64) []byte {
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b := make([]byte, length)
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if _, err := rand.Read(b); err != nil {
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return nil
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}
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return b
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}
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// GenRandomStr generates a random string.
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func GenRandomStr() string {
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return fmt.Sprintf("%X", GenRandomBytes())
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}
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