feat(ftp): support receive ftp connection (#6)

Co-authored-by: E99p1ant <[email protected]>

pkg/ftp/rule.go

@@ -0,0 +1,194 @@
+package ftp
+
+import (
+	"strconv"
+
+	"github.com/gin-gonic/gin"
+	"github.com/li4n0/revsuit/internal/database"
+	"github.com/li4n0/revsuit/internal/rule"
+	"gorm.io/gorm/clause"
+	log "unknwon.dev/clog/v2"
+)
+
+// FTP rule struct
+type Rule struct {
+	rule.BaseRule
+	PasvAddress string `gorm:"pasv_address" json:"pasv_address" form:"pasv_address"`
+}
+
+func (Rule) TableName() string {
+	return "ftp_rules"
+}
+
+// NewRule creates a new ftp rule struct
+func NewRule(name, flagFormat, pasvAddress string, pushToClient, notice bool) *Rule {
+	return &Rule{
+		BaseRule: rule.BaseRule{
+			Name:         name,
+			FlagFormat:   flagFormat,
+			PushToClient: pushToClient,
+			Notice:       notice,
+		},
+		PasvAddress: pasvAddress,
+	}
+}
+
+// CreateOrUpdate creates or updates the ftp rule in database and ruleSet
+func (r *Rule) CreateOrUpdate() (err error) {
+	db := database.DB.Model(r)
+	err = db.Clauses(clause.OnConflict{
+		Columns: []clause.Column{{Name: "id"}},
+		DoUpdates: clause.AssignmentColumns(
+			[]string{
+				"name",
+				"flag_format",
+				"rank",
+				"pasv_address",
+				"push_to_client",
+				"notice",
+			}),
+	}).Create(r).Error
+	if err != nil {
+		return
+	}
+
+	return GetServer().updateRules()
+}
+
+// Delete deletes the ftp rule in database and ruleSet
+func (r *Rule) Delete() (err error) {
+	db := database.DB.Model(r)
+	err = db.Delete(r).Error
+	if err != nil {
+		return
+	}
+
+	return GetServer().updateRules()
+}
+
+// ListRules lists all ftp rules those satisfy the filter
+func ListRules(c *gin.Context) {
+	var (
+		ftpRule Rule
+		res     []Rule
+		count   int64
+		order   = c.Query("order")
+	)
+
+	if err := c.ShouldBind(&ftpRule); err != nil {
+		c.JSON(400, gin.H{
+			"status": "failed",
+			"error":  err,
+			"result": nil,
+		})
+		return
+	}
+
+	db := database.DB.Model(&ftpRule)
+	if ftpRule.Name != "" {
+		db.Where("name = ?", ftpRule.Name)
+	}
+	db.Count(&count)
+
+	page, err := strconv.Atoi(c.Query("page"))
+	if err != nil {
+		c.JSON(400, gin.H{
+			"status": "failed",
+			"error":  err.Error(),
+			"result": nil,
+		})
+		return
+	}
+
+	if order != "asc" {
+		order = "desc"
+	}
+
+	if err := db.Order("rank desc").Order("id" + " " + order).Count(&count).Offset((page - 1) * 10).Limit(10).Find(&res).Error; err != nil {
+		c.JSON(400, gin.H{
+			"status": "failed",
+			"error":  err,
+			"data":   nil,
+		})
+		return
+	}
+
+	c.JSON(200, gin.H{
+		"status": "succeed",
+		"error":  nil,
+		"result": gin.H{"count": count, "data": res},
+	})
+}
+
+// Create or update ftp rule from user submit
+func UpsertRules(c *gin.Context) {
+	var (
+		ftpRule Rule
+		update  bool
+	)
+
+	if err := c.ShouldBind(&ftpRule); err != nil {
+		c.JSON(400, gin.H{
+			"status": "failed",
+			"error":  err.Error(),
+			"data":   nil,
+		})
+		return
+	}
+
+	if ftpRule.ID != 0 {
+		update = true
+	}
+
+	if err := ftpRule.CreateOrUpdate(); err != nil {
+		c.JSON(400, gin.H{
+			"status": "failed",
+			"error":  err.Error(),
+			"result": nil,
+		})
+		return
+	}
+
+	if update {
+		log.Trace("FTP rule[id%d] has been updated", ftpRule.ID)
+	} else {
+		log.Trace("FTP rule[id%d] has been created", ftpRule.ID)
+	}
+
+	c.JSON(200, gin.H{
+		"status": "succeed",
+		"error":  nil,
+		"result": nil,
+	})
+}
+
+// Delete ftp rule from user submit
+func DeleteRules(c *gin.Context) {
+	var ftpRule Rule
+
+	if err := c.ShouldBind(&ftpRule); err != nil {
+		c.JSON(400, gin.H{
+			"status": "failed",
+			"error":  err.Error(),
+			"data":   nil,
+		})
+		return
+	}
+
+	if err := ftpRule.Delete(); err != nil {
+		c.JSON(400, gin.H{
+			"status": "failed",
+			"error":  err.Error(),
+			"data":   nil,
+		})
+		return
+	}
+
+	log.Trace("FTP rule[id%d] has been deleted", ftpRule.ID)
+
+	c.JSON(200, gin.H{
+		"status": "succeed",
+		"error":  nil,
+		"data":   nil,
+	})
+}