mirror of
https://github.com/goharbor/harbor.git
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97 lines
2.3 KiB
Go
97 lines
2.3 KiB
Go
/*
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Copyright (c) 2016 VMware, Inc. All Rights Reserved.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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 dao
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import (
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"fmt"
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"net"
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"os"
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"sync"
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"time"
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"github.com/astaxie/beego/orm"
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_ "github.com/go-sql-driver/mysql" //register mysql driver
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"github.com/vmware/harbor/utils/log"
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)
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// NonExistUserID : if a user does not exist, the ID of the user will be 0.
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const NonExistUserID = 0
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// GenerateRandomString generates a random string
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func GenerateRandomString() (string, error) {
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o := orm.NewOrm()
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var uuid string
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err := o.Raw(`select uuid() as uuid`).QueryRow(&uuid)
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if err != nil {
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return "", err
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}
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return uuid, nil
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}
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//InitDB initializes the database
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func InitDB() {
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// orm.Debug = true
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orm.RegisterDriver("mysql", orm.DRMySQL)
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addr := os.Getenv("MYSQL_HOST")
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port := os.Getenv("MYSQL_PORT")
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username := os.Getenv("MYSQL_USR")
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password := os.Getenv("MYSQL_PWD")
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log.Debugf("db url: %s:%s, db user: %s", addr, port, username)
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dbStr := username + ":" + password + "@tcp(" + addr + ":" + port + ")/registry"
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ch := make(chan int, 1)
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go func() {
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var err error
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var c net.Conn
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for {
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c, err = net.DialTimeout("tcp", addr+":"+port, 20*time.Second)
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if err == nil {
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c.Close()
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ch <- 1
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} else {
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log.Errorf("failed to connect to db, retry after 2 seconds :%v", err)
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time.Sleep(2 * time.Second)
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}
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}
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}()
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select {
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case <-ch:
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case <-time.After(60 * time.Second):
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panic("Failed to connect to DB after 60 seconds")
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}
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err := orm.RegisterDataBase("default", "mysql", dbStr)
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if err != nil {
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panic(err)
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}
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}
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var globalOrm orm.Ormer
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var once sync.Once
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// GetOrmer :set ormer singleton
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func GetOrmer() orm.Ormer {
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once.Do(func() {
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globalOrm = orm.NewOrm()
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})
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return globalOrm
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}
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func paginateForRawSQL(sql string, limit, offset int64) string {
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return fmt.Sprintf("%s limit %d offset %d", sql, limit, offset)
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}
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