Dwi Siswanto a326f3925c
fix(tmplexec): memory blowup in multiproto (#6258)
* bugfix: fix memory blowup using previousEvent for multi-proto execution

* refactor(tmplexec): uses supported protocol types

Signed-off-by: Dwi Siswanto <git@dw1.io>

* add co-author

Co-authored-by: Nakul Bharti <knakul853@users.noreply.github.com>
Signed-off-by: Dwi Siswanto <git@dw1.io>

* refactor(tmplexec): mv builder inside loop scope

Signed-off-by: Dwi Siswanto <git@dw1.io>

* refactor(tmplexec): skip existing keys in `FillPreviousEvent`

The `FillPreviousEvent` func was modified to
prevent overwriting/duplicating entries in the
previous map.

It now checks if a key `k` from
`event.InternalEvent` already exists in the
previous map. If it does, the key is skipped. This
ensures that if `k` was already set (potentially
w/o a prefix), it's not re-added with an `ID_`
prefix.

Additionally, keys in `event.InternalEvent` that
already start with the current `ID_` prefix are
also skipped to avoid redundant prefixing.

This change simplifies the logic by removing the
`reqTypeWithIndexRegex` and directly addresses the
potential for duplicate / incorrectly prefixed
keys when `event.InternalEvent` grows during
protocol request execution.

Signed-off-by: Dwi Siswanto <git@dw1.io>

* chore(tmplexec): naming convention, `ID` => `protoID`

Signed-off-by: Dwi Siswanto <git@dw1.io>

* chore(tmplexec): it's request ID lol sorry

Signed-off-by: Dwi Siswanto <git@dw1.io>

---------

Signed-off-by: Dwi Siswanto <git@dw1.io>
Co-authored-by: Ice3man <nizamulrana@gmail.com>
Co-authored-by: Nakul Bharti <knakul853@users.noreply.github.com>
2025-06-17 04:53:32 +05:30

35 lines
725 B
Go

package utils
import (
"strings"
"github.com/projectdiscovery/nuclei/v3/pkg/output"
mapsutil "github.com/projectdiscovery/utils/maps"
)
// FillPreviousEvent is a helper function to get the previous event from the event
// without leading to duplicate prefixes
func FillPreviousEvent(reqID string, event *output.InternalWrappedEvent, previous *mapsutil.SyncLockMap[string, any]) {
if reqID == "" {
return
}
for k, v := range event.InternalEvent {
if _, ok := previous.Get(k); ok {
continue
}
if strings.HasPrefix(k, reqID+"_") {
continue
}
var builder strings.Builder
builder.WriteString(reqID)
builder.WriteString("_")
builder.WriteString(k)
_ = previous.Set(builder.String(), v)
}
}