-
Notifications
You must be signed in to change notification settings - Fork 16
/
validation.go
176 lines (150 loc) · 5.35 KB
/
validation.go
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
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
/*
* Copyright (c) 2020 AccelByte Inc
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and limitations under the License.
*
*/
package eventstream
import (
"context"
"regexp"
validator "github.com/AccelByte/justice-input-validation-go"
"github.com/pkg/errors"
"github.com/sirupsen/logrus"
)
const TopicEventPattern = "^[a-zA-Z0-9]+((['_.-][a-zA-Z0-9])?[a-zA-Z0-9]*)*$"
var (
errInvalidPubStruct = errors.New("publish struct isn't valid")
errInvalidTopicFormat = errors.New("topic format isn't valid")
errInvalidEventNameFormat = errors.New("eventname format isn't valid")
errInvalidUserID = errors.New("userID isn't valid")
errInvalidClientID = errors.New("clientID isn't valid")
errInvalidSessionID = errors.New("sessionID isn't valid")
errInvalidTraceID = errors.New("traceID isn't valid")
errInvalidCallback = errors.New("callback should not be nil")
)
var topicRegex *regexp.Regexp = nil
func init() {
validRegex, err := regexp.Compile(TopicEventPattern)
if err != nil {
panic(err)
}
topicRegex = validRegex
}
// validatePublishEvent validate published event
func validatePublishEvent(publishBuilder *PublishBuilder, strictValidation bool) error {
if isTopicValid := validateTopicEvent(publishBuilder.topic); !isTopicValid {
logrus.
WithField("Topic Name", publishBuilder.topic).
WithField("Event Name", publishBuilder.eventName).
Errorf("unable to validate publisher event. error: invalid topic format")
return errInvalidTopicFormat
}
if isEventNameValid := validateTopicEvent(publishBuilder.eventName); !isEventNameValid {
logrus.
WithField("Topic Name", publishBuilder.topic).
WithField("Event Name", publishBuilder.eventName).
Errorf("unable to validate publisher event. error: invalid event name format")
return errInvalidEventNameFormat
}
publishEvent := struct {
Topic string `valid:"required"`
EventName string `valid:"required"`
Namespace string
ClientID string
UserID string
SessionID string
TraceID string
}{
Topic: publishBuilder.topic,
EventName: publishBuilder.eventName,
Namespace: publishBuilder.namespace,
ClientID: publishBuilder.clientID,
TraceID: publishBuilder.traceID,
UserID: publishBuilder.userID,
SessionID: publishBuilder.sessionID,
}
valid, err := validator.ValidateStruct(publishEvent)
if err != nil {
logrus.
WithField("Topic Name", publishEvent.Topic).
WithField("Event Name", publishEvent.EventName).
Errorf("unable to validate publisher event. error : %v", err)
return err
}
if !valid {
return errInvalidPubStruct
}
// only additional validation that included to strictValidation
if strictValidation {
if publishEvent.UserID != "" && !validator.IsUUID4WithoutHyphens(publishEvent.UserID) {
return errInvalidUserID
}
if publishEvent.ClientID != "" && !validator.IsUUID4WithoutHyphens(publishEvent.ClientID) {
return errInvalidClientID
}
if publishEvent.SessionID != "" && !validator.IsUUID4WithoutHyphens(publishEvent.SessionID) {
return errInvalidSessionID
}
if publishEvent.TraceID != "" && !validator.IsUUID4WithoutHyphens(publishEvent.TraceID) {
return errInvalidTraceID
}
}
return nil
}
// validateSubscribeEvent validate subscribe event
func validateSubscribeEvent(subscribeBuilder *SubscribeBuilder) error {
if isTopicValid := validateTopicEvent(subscribeBuilder.topic); !isTopicValid {
logrus.
WithField("Topic Name", subscribeBuilder.topic).
WithField("Event Name", subscribeBuilder.eventName).
Errorf("unable to validate subscribe event. error: invalid topic format")
return errInvalidTopicFormat
}
if subscribeBuilder.eventName != "" {
if isEventNameValid := validateTopicEvent(subscribeBuilder.eventName); !isEventNameValid {
logrus.
WithField("Topic Name", subscribeBuilder.topic).
WithField("Event Name", subscribeBuilder.eventName).
Errorf("unable to validate subscribe event. error: invalid event name format")
return errInvalidEventNameFormat
}
}
subscribeEvent := struct {
Topic string `valid:"required"`
EventName string
GroupID string
Callback func(ctx context.Context, event *Event, err error) error
CallbackRaw func(ctx context.Context, msg []byte, err error) error
}{
Topic: subscribeBuilder.topic,
EventName: subscribeBuilder.eventName,
GroupID: subscribeBuilder.groupID,
Callback: subscribeBuilder.callback,
CallbackRaw: subscribeBuilder.callbackRaw,
}
_, err := validator.ValidateStruct(subscribeEvent)
if err != nil {
logrus.
WithField("Topic Name", subscribeBuilder.topic).
WithField("Event Name", subscribeBuilder.eventName).
Errorf("unable to validate subscribe event. error : %v", err)
return err
}
if subscribeEvent.Callback == nil && subscribeEvent.CallbackRaw == nil {
return errInvalidCallback
}
return nil
}
func validateTopicEvent(value string) bool {
return topicRegex.MatchString(value)
}