1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
|
// Copyright (c) 2015 Mattermost, Inc. All Rights Reserved.
// See License.txt for license information.
package api
import (
"net/http"
"strings"
"time"
l4g "github.com/alecthomas/log4go"
"github.com/braintree/manners"
"github.com/gorilla/handlers"
"github.com/gorilla/mux"
"github.com/mattermost/platform/store"
"github.com/mattermost/platform/utils"
"gopkg.in/throttled/throttled.v2"
"gopkg.in/throttled/throttled.v2/store/memstore"
)
type Server struct {
Store store.Store
Router *mux.Router
}
type CorsWrapper struct {
router *mux.Router
}
var Srv *Server
func NewServer() {
l4g.Info(utils.T("api.server.new_server.init.info"))
Srv = &Server{}
Srv.Store = store.NewSqlStore()
Srv.Router = mux.NewRouter()
Srv.Router.NotFoundHandler = http.HandlerFunc(Handle404)
}
type VaryBy struct{}
func (m *VaryBy) Key(r *http.Request) string {
return GetIpAddress(r)
}
func initalizeThrottledVaryBy() *throttled.VaryBy {
vary := throttled.VaryBy{}
if utils.Cfg.RateLimitSettings.VaryByRemoteAddr {
vary.RemoteAddr = true
}
if len(utils.Cfg.RateLimitSettings.VaryByHeader) > 0 {
vary.Headers = strings.Fields(utils.Cfg.RateLimitSettings.VaryByHeader)
if utils.Cfg.RateLimitSettings.VaryByRemoteAddr {
l4g.Warn(utils.T("api.server.start_server.rate.warn"))
vary.RemoteAddr = false
}
}
return &vary
}
func StartServer() {
l4g.Info(utils.T("api.server.start_server.starting.info"))
l4g.Info(utils.T("api.server.start_server.listening.info"), utils.Cfg.ServiceSettings.ListenAddress)
var handler http.Handler = &CorsWrapper{Srv.Router}
if *utils.Cfg.RateLimitSettings.Enable {
l4g.Info(utils.T("api.server.start_server.rate.info"))
store, err := memstore.New(utils.Cfg.RateLimitSettings.MemoryStoreSize)
if err != nil {
l4g.Critical(utils.T("api.server.start_server.rate_limiting_memory_store"))
return
}
quota := throttled.RateQuota{
MaxRate: throttled.PerSec(utils.Cfg.RateLimitSettings.PerSec),
MaxBurst: *utils.Cfg.RateLimitSettings.MaxBurst,
}
rateLimiter, err := throttled.NewGCRARateLimiter(store, quota)
if err != nil {
l4g.Critical(utils.T("api.server.start_server.rate_limiting_rate_limiter"))
return
}
httpRateLimiter := throttled.HTTPRateLimiter{
RateLimiter: rateLimiter,
VaryBy: &VaryBy{},
DeniedHandler: http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
l4g.Error("%v: Denied due to throttling settings code=429 ip=%v", r.URL.Path, GetIpAddress(r))
throttled.DefaultDeniedHandler.ServeHTTP(w, r)
}),
}
handler = httpRateLimiter.RateLimit(handler)
}
go func() {
err := manners.ListenAndServe(utils.Cfg.ServiceSettings.ListenAddress, handlers.RecoveryHandler(handlers.PrintRecoveryStack(true))(handler))
if err != nil {
l4g.Critical(utils.T("api.server.start_server.starting.critical"), err)
time.Sleep(time.Second)
}
}()
}
func StopServer() {
l4g.Info(utils.T("api.server.stop_server.stopping.info"))
manners.Close()
Srv.Store.Close()
hub.Stop()
l4g.Info(utils.T("api.server.stop_server.stopped.info"))
}
|
