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// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
// See License.txt for license information.
package app
import (
"net"
"net/http"
"strings"
"github.com/mattermost/mattermost-server/utils"
)
// Wraps the functionality for creating a new http.Client to encapsulate that and allow it to be mocked when testing
type HTTPService interface {
MakeClient(trustURLs bool) *http.Client
Close()
}
type HTTPServiceImpl struct {
app *App
}
func MakeHTTPService(app *App) HTTPService {
return &HTTPServiceImpl{app}
}
func (h *HTTPServiceImpl) MakeClient(trustURLs bool) *http.Client {
insecure := h.app.Config().ServiceSettings.EnableInsecureOutgoingConnections != nil && *h.app.Config().ServiceSettings.EnableInsecureOutgoingConnections
if trustURLs {
return utils.NewHTTPClient(insecure, nil, nil)
}
allowHost := func(host string) bool {
if h.app.Config().ServiceSettings.AllowedUntrustedInternalConnections == nil {
return false
}
for _, allowed := range strings.Fields(*h.app.Config().ServiceSettings.AllowedUntrustedInternalConnections) {
if host == allowed {
return true
}
}
return false
}
allowIP := func(ip net.IP) bool {
if !utils.IsReservedIP(ip) {
return true
}
if h.app.Config().ServiceSettings.AllowedUntrustedInternalConnections == nil {
return false
}
for _, allowed := range strings.Fields(*h.app.Config().ServiceSettings.AllowedUntrustedInternalConnections) {
if _, ipRange, err := net.ParseCIDR(allowed); err == nil && ipRange.Contains(ip) {
return true
}
}
return false
}
return utils.NewHTTPClient(insecure, allowHost, allowIP)
}
func (h *HTTPServiceImpl) Close() {
// Does nothing, but allows this to be overridden when mocking the service
}
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