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log real ip of requests from ssh #21216

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merged 6 commits into from
Oct 11, 2022
Merged

log real ip of requests from ssh #21216

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befb2ff
log real ip of requests from ssh
lunny Sep 20, 2022
06bac0d
Only internal API accept realIP because the ip get from ssh server side
lunny Sep 20, 2022
fd9f2b0
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lunny Sep 20, 2022
af36fe9
fix spelling error
wxiaoguang Sep 20, 2022
79f2bc1
Merge branch 'main' into lunny/fix_ssh_request_ip
6543 Oct 10, 2022
be08f12
Merge branch 'main' into lunny/fix_ssh_request_ip
zeripath Oct 11, 2022
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15 changes: 13 additions & 2 deletions modules/private/internal.go
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Original file line number Diff line number Diff line change
Expand Up @@ -10,6 +10,8 @@ import (
"fmt"
"net"
"net/http"
"os"
"strings"

"code.gitea.io/gitea/modules/httplib"
"code.gitea.io/gitea/modules/json"
Expand All @@ -18,13 +20,14 @@ import (
"code.gitea.io/gitea/modules/setting"
)

func newRequest(ctx context.Context, url, method string) *httplib.Request {
func newRequest(ctx context.Context, url, method, sourceIP string) *httplib.Request {
if setting.InternalToken == "" {
log.Fatal(`The INTERNAL_TOKEN setting is missing from the configuration file: %q.
Ensure you are running in the correct environment or set the correct configuration file with -c.`, setting.CustomConf)
}
return httplib.NewRequest(url, method).
SetContext(ctx).
Header("X-Real-IP", sourceIP).
Header("Authorization", fmt.Sprintf("Bearer %s", setting.InternalToken))
}

Expand All @@ -42,8 +45,16 @@ func decodeJSONError(resp *http.Response) *Response {
return &res
}

func getClientIP() string {
sshConnEnv := strings.TrimSpace(os.Getenv("SSH_CONNECTION"))
if len(sshConnEnv) == 0 {
return "127.0.0.1"
}
return strings.Fields(sshConnEnv)[0]
}

func newInternalRequest(ctx context.Context, url, method string) *httplib.Request {
req := newRequest(ctx, url, method).SetTLSClientConfig(&tls.Config{
req := newRequest(ctx, url, method, getClientIP()).SetTLSClientConfig(&tls.Config{
InsecureSkipVerify: true,
ServerName: setting.Domain,
})
Expand Down
4 changes: 4 additions & 0 deletions routers/private/internal.go
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Original file line number Diff line number Diff line change
Expand Up @@ -17,6 +17,7 @@ import (
"code.gitea.io/gitea/modules/web"

"gitea.com/go-chi/binding"
chi_middleware "github.com/go-chi/chi/v5/middleware"
)

// CheckInternalToken check internal token is set
Expand Down Expand Up @@ -52,6 +53,9 @@ func Routes() *web.Route {
r := web.NewRoute()
r.Use(context.PrivateContexter())
r.Use(CheckInternalToken)
// Log the real ip address of the request from SSH is really helpful for diagnosing sometimes.
// Since internal API will be sent only from Gitea sub commands and it's under control (checked by InternalToken), we can trust the headers.
r.Use(chi_middleware.RealIP)

r.Post("/ssh/authorized_keys", AuthorizedPublicKeyByContent)
r.Post("/ssh/{id}/update/{repoid}", UpdatePublicKeyInRepo)
Expand Down