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decisions.go
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decisions.go
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package database
import (
"fmt"
"strings"
"time"
"strconv"
"github.com/crowdsecurity/crowdsec/pkg/database/ent"
"github.com/crowdsecurity/crowdsec/pkg/database/ent/decision"
"github.com/crowdsecurity/crowdsec/pkg/types"
"github.com/pkg/errors"
log "github.com/sirupsen/logrus"
)
func BuildDecisionRequestWithFilter(query *ent.DecisionQuery, filter map[string][]string) (*ent.DecisionQuery, error) {
var err error
var startIP, endIP int64
/*the simulated filter is a bit different : if it's not present *or* set to false, specifically exclude records with simulated to true */
if v, ok := filter["simulated"]; ok {
if v[0] == "false" {
query = query.Where(decision.SimulatedEQ(false))
}
delete(filter, "simulated")
} else {
query = query.Where(decision.SimulatedEQ(false))
}
for param, value := range filter {
switch param {
case "scope":
var scope string = value[0]
if strings.ToLower(scope) == "ip" {
scope = types.Ip
} else if strings.ToLower(scope) == "range" {
scope = types.Range
}
query = query.Where(decision.ScopeEQ(scope))
case "value":
query = query.Where(decision.ValueEQ(value[0]))
case "type":
query = query.Where(decision.TypeEQ(value[0]))
case "ip":
isValidIP := IsIpv4(value[0])
if !isValidIP {
return nil, errors.Wrapf(InvalidIPOrRange, "unable to parse '%s': %s", value[0], err)
}
startIP, endIP, err = GetIpsFromIpRange(value[0] + "/32")
if err != nil {
return nil, errors.Wrapf(InvalidIPOrRange, "unable to convert '%s' to int interval: %s", value[0], err)
}
case "range":
startIP, endIP, err = GetIpsFromIpRange(value[0])
if err != nil {
return nil, errors.Wrapf(InvalidIPOrRange, "unable to convert '%s' to int interval: %s", value[0], err)
}
default:
return query, errors.Wrapf(InvalidFilter, "'%s' doesn't exist", param)
}
}
if startIP != 0 && endIP != 0 {
/*the user is checking for a single IP*/
if startIP == endIP {
//DECISION_START <= IP_Q >= DECISON_END
query = query.Where(decision.And(
decision.StartIPLTE(startIP),
decision.EndIPGTE(endIP),
))
} else { /*the user is checking for a RANGE */
//START_Q >= DECISION_START AND END_Q <= DECISION_END
query = query.Where(decision.And(
decision.StartIPGTE(startIP),
decision.EndIPLTE(endIP),
))
}
}
return query, nil
}
func (c *Client) QueryDecisionWithFilter(filter map[string][]string) ([]*ent.Decision, error) {
var data []*ent.Decision
var err error
decisions := c.Ent.Decision.Query().
Where(decision.UntilGTE(time.Now()))
decisions, err = BuildDecisionRequestWithFilter(decisions, filter)
if err != nil {
return []*ent.Decision{}, err
}
err = decisions.Select(
decision.FieldID,
decision.FieldUntil,
decision.FieldScenario,
decision.FieldType,
decision.FieldStartIP,
decision.FieldEndIP,
decision.FieldValue,
decision.FieldScope,
decision.FieldOrigin,
).Scan(c.CTX, &data)
if err != nil {
log.Warningf("QueryDecisionWithFilter : %s", err)
return []*ent.Decision{}, errors.Wrap(QueryFail, "query decision failed")
}
return data, nil
}
func (c *Client) QueryAllDecisions() ([]*ent.Decision, error) {
data, err := c.Ent.Decision.Query().Where(decision.UntilGT(time.Now())).All(c.CTX)
if err != nil {
log.Warningf("QueryAllDecisions : %s", err)
return []*ent.Decision{}, errors.Wrap(QueryFail, "get all decisions")
}
return data, nil
}
func (c *Client) QueryExpiredDecisions() ([]*ent.Decision, error) {
data, err := c.Ent.Decision.Query().Where(decision.UntilLT(time.Now())).All(c.CTX)
if err != nil {
log.Warningf("QueryExpiredDecisions : %s", err)
return []*ent.Decision{}, errors.Wrap(QueryFail, "expired decisions")
}
return data, nil
}
func (c *Client) QueryExpiredDecisionsSince(since time.Time) ([]*ent.Decision, error) {
data, err := c.Ent.Decision.Query().Where(decision.UntilLT(time.Now())).Where(decision.UntilGT(since)).All(c.CTX)
if err != nil {
log.Warningf("QueryExpiredDecisionsSince : %s", err)
return []*ent.Decision{}, errors.Wrap(QueryFail, "expired decisions")
}
return data, nil
}
func (c *Client) QueryNewDecisionsSince(since time.Time) ([]*ent.Decision, error) {
data, err := c.Ent.Decision.Query().Where(decision.CreatedAtGT(since)).All(c.CTX)
if err != nil {
log.Warningf("QueryNewDecisionsSince : %s", err)
return []*ent.Decision{}, errors.Wrapf(QueryFail, "new decisions since '%s'", since.String())
}
return data, nil
}
func (c *Client) DeleteDecisionById(decisionId int) error {
err := c.Ent.Decision.DeleteOneID(decisionId).Exec(c.CTX)
if err != nil {
log.Warningf("DeleteDecisionById : %s", err)
return errors.Wrapf(DeleteFail, "decision with id '%d' doesn't exist", decisionId)
}
return nil
}
func (c *Client) DeleteDecisionsWithFilter(filter map[string][]string) (string, error) {
var err error
var startIP, endIP int64
decisions := c.Ent.Decision.Delete()
for param, value := range filter {
switch param {
case "scope":
decisions = decisions.Where(decision.ScopeEQ(value[0]))
case "value":
decisions = decisions.Where(decision.ValueEQ(value[0]))
case "type":
decisions = decisions.Where(decision.TypeEQ(value[0]))
case "ip":
isValidIP := IsIpv4(value[0])
if !isValidIP {
return "0", errors.Wrap(InvalidIPOrRange, fmt.Sprintf("unable to parse '%s': %s", value[0], err))
}
startIP, endIP, err = GetIpsFromIpRange(value[0] + "/32")
if err != nil {
return "0", errors.Wrap(InvalidIPOrRange, fmt.Sprintf("unable to convert '%s' to int interval: %s", value[0], err))
}
case "range":
startIP, endIP, err = GetIpsFromIpRange(value[0])
if err != nil {
return "0", errors.Wrap(InvalidIPOrRange, fmt.Sprintf("unable to convert '%s' to int interval: %s", value[0], err))
}
default:
return "0", errors.Wrap(InvalidFilter, fmt.Sprintf("'%s' doesn't exist", param))
}
if startIP != 0 && endIP != 0 {
/*the user is checking for a single IP*/
if startIP == endIP {
//DECISION_START <= IP_Q >= DECISON_END
decisions = decisions.Where(decision.And(
decision.StartIPLTE(startIP),
decision.EndIPGTE(endIP),
))
} else { /*the user is checking for a RANGE */
//START_Q >= DECISION_START AND END_Q <= DECISION_END
decisions = decisions.Where(decision.And(
decision.StartIPGTE(startIP),
decision.EndIPLTE(endIP),
))
}
}
}
nbDeleted, err := decisions.Exec(c.CTX)
if err != nil {
log.Warningf("DeleteDecisionsWithFilter : %s", err)
return "0", errors.Wrap(DeleteFail, "decisions with provided filter")
}
return strconv.Itoa(nbDeleted), nil
}
// SoftDeleteDecisionsWithFilter udpate the expiration time to now() for the decisions matching the filter
func (c *Client) SoftDeleteDecisionsWithFilter(filter map[string][]string) (string, error) {
var err error
var startIP, endIP int64
decisions := c.Ent.Decision.Update().Where(decision.UntilGT(time.Now()))
for param, value := range filter {
switch param {
case "scope":
decisions = decisions.Where(decision.ScopeEQ(value[0]))
case "value":
decisions = decisions.Where(decision.ValueEQ(value[0]))
case "type":
decisions = decisions.Where(decision.TypeEQ(value[0]))
case "ip":
isValidIP := IsIpv4(value[0])
if !isValidIP {
return "0", errors.Wrapf(InvalidIPOrRange, "unable to parse '%s': %s", value[0], err)
}
startIP, endIP, err = GetIpsFromIpRange(value[0] + "/32")
if err != nil {
return "0", errors.Wrapf(InvalidIPOrRange, "unable to convert '%s' to int interval: %s", value[0], err)
}
case "range":
startIP, endIP, err = GetIpsFromIpRange(value[0])
if err != nil {
return "0", errors.Wrapf(InvalidIPOrRange, "unable to convert '%s' to int interval: %s", value[0], err)
}
default:
return "0", errors.Wrapf(InvalidFilter, "'%s' doesn't exist", param)
}
if startIP != 0 && endIP != 0 {
/*the user is checking for a single IP*/
if startIP == endIP {
//DECISION_START <= IP_Q >= DECISON_END
decisions = decisions.Where(decision.And(
decision.StartIPLTE(startIP),
decision.EndIPGTE(endIP),
))
} else { /*the user is checking for a RANGE */
//START_Q >= DECISION_START AND END_Q <= DECISION_END
decisions = decisions.Where(decision.And(
decision.StartIPGTE(startIP),
decision.EndIPLTE(endIP),
))
}
}
}
nbDeleted, err := decisions.SetUntil(time.Now()).Save(c.CTX)
if err != nil {
log.Warningf("SoftDeleteDecisionsWithFilter : %s", err)
return "0", errors.Wrap(DeleteFail, "soft delete decisions with provided filter")
}
return strconv.Itoa(nbDeleted), nil
}
//SoftDeleteDecisionByID set the expiration of a decision to now()
func (c *Client) SoftDeleteDecisionByID(decisionID int) error {
nbUpdated, err := c.Ent.Decision.Update().Where(decision.IDEQ(decisionID)).SetUntil(time.Now()).Save(c.CTX)
if err != nil || nbUpdated == 0 {
log.Warningf("SoftDeleteDecisionByID : %v (nb soft deleted: %d)", err, nbUpdated)
return errors.Wrapf(DeleteFail, "decision with id '%d' doesn't exist", decisionID)
}
if nbUpdated == 0 {
return ItemNotFound
}
return nil
}