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sub2clash/api/controller/short_link.go
Nite07 8d06ab3175
Dev (#2)
fix: 修复当订阅链接有多个 clash 配置时丢失节点的问题
update: 增加检测更新
modify: 修改数据库路径
modify: 修改短链生成逻辑
modify: 统一输出信息
2023-09-21 09:08:02 +08:00

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package controller
import (
"errors"
"github.com/gin-gonic/gin"
"gorm.io/gorm"
"net/http"
"strings"
"sub2clash/config"
"sub2clash/model"
"sub2clash/utils"
"sub2clash/utils/database"
"sub2clash/validator"
"time"
)
func ShortLinkGenHandler(c *gin.Context) {
// 从请求中获取参数
var params validator.ShortLinkGenValidator
if err := c.ShouldBind(&params); err != nil {
c.String(400, "参数错误: "+err.Error())
}
if strings.TrimSpace(params.Url) == "" {
c.String(400, "参数错误")
return
}
// 生成hash
hash := utils.RandomString(config.Default.ShortLinkLength)
// 存入数据库
var item model.ShortLink
result := database.FindShortLinkByUrl(params.Url, &item)
if result.Error == nil {
c.String(200, item.Hash)
return
} else {
if !errors.Is(result.Error, gorm.ErrRecordNotFound) {
c.String(500, "数据库错误: "+result.Error.Error())
return
}
}
// 如果记录存在则重新生成hash直到记录不存在
result = database.FindShortLinkByHash(hash, &item)
for result.Error == nil {
hash = utils.RandomString(config.Default.ShortLinkLength)
result = database.FindShortLinkByHash(hash, &item)
}
// 创建记录
database.FirstOrCreateShortLink(
&model.ShortLink{
Hash: hash,
Url: params.Url,
LastRequestTime: -1,
},
)
// 返回短链接
c.String(200, hash)
}
func ShortLinkGetHandler(c *gin.Context) {
// 获取动态路由
hash := c.Param("hash")
if strings.TrimSpace(hash) == "" {
c.String(400, "参数错误")
return
}
// 查询数据库
var shortLink model.ShortLink
result := database.FindShortLinkByHash(hash, &shortLink)
// 重定向
if result.Error != nil {
c.String(404, "未找到短链接")
return
}
// 更新最后访问时间
shortLink.LastRequestTime = time.Now().Unix()
database.SaveShortLink(&shortLink)
uri := config.Default.BasePath + shortLink.Url
c.Redirect(http.StatusTemporaryRedirect, uri)
}