forked from hashicorp/terraform-provider-aws
/
resource_aws_waf_rule.go
179 lines (153 loc) · 4.37 KB
/
resource_aws_waf_rule.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
177
178
179
package aws
import (
"fmt"
"log"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/service/waf"
"github.com/hashicorp/terraform/helper/schema"
"github.com/hashicorp/terraform/helper/validation"
)
func resourceAwsWafRule() *schema.Resource {
return &schema.Resource{
Create: resourceAwsWafRuleCreate,
Read: resourceAwsWafRuleRead,
Update: resourceAwsWafRuleUpdate,
Delete: resourceAwsWafRuleDelete,
Importer: &schema.ResourceImporter{
State: schema.ImportStatePassthrough,
},
Schema: map[string]*schema.Schema{
"name": {
Type: schema.TypeString,
Required: true,
ForceNew: true,
},
"metric_name": {
Type: schema.TypeString,
Required: true,
ForceNew: true,
ValidateFunc: validateWafMetricName,
},
"predicates": {
Type: schema.TypeSet,
Optional: true,
Elem: &schema.Resource{
Schema: map[string]*schema.Schema{
"negated": {
Type: schema.TypeBool,
Required: true,
},
"data_id": {
Type: schema.TypeString,
Required: true,
ValidateFunc: validation.StringLenBetween(0, 128),
},
"type": {
Type: schema.TypeString,
Required: true,
ValidateFunc: validateWafPredicatesType(),
},
},
},
},
},
}
}
func resourceAwsWafRuleCreate(d *schema.ResourceData, meta interface{}) error {
conn := meta.(*AWSClient).wafconn
wr := newWafRetryer(conn)
out, err := wr.RetryWithToken(func(token *string) (interface{}, error) {
params := &waf.CreateRuleInput{
ChangeToken: token,
MetricName: aws.String(d.Get("metric_name").(string)),
Name: aws.String(d.Get("name").(string)),
}
return conn.CreateRule(params)
})
if err != nil {
return err
}
resp := out.(*waf.CreateRuleOutput)
d.SetId(*resp.Rule.RuleId)
return resourceAwsWafRuleUpdate(d, meta)
}
func resourceAwsWafRuleRead(d *schema.ResourceData, meta interface{}) error {
conn := meta.(*AWSClient).wafconn
params := &waf.GetRuleInput{
RuleId: aws.String(d.Id()),
}
resp, err := conn.GetRule(params)
if err != nil {
if awsErr, ok := err.(awserr.Error); ok && awsErr.Code() == "WAFNonexistentItemException" {
log.Printf("[WARN] WAF Rule (%s) not found, removing from state", d.Id())
d.SetId("")
return nil
}
return err
}
var predicates []map[string]interface{}
for _, predicateSet := range resp.Rule.Predicates {
predicate := map[string]interface{}{
"negated": *predicateSet.Negated,
"type": *predicateSet.Type,
"data_id": *predicateSet.DataId,
}
predicates = append(predicates, predicate)
}
d.Set("predicates", predicates)
d.Set("name", resp.Rule.Name)
d.Set("metric_name", resp.Rule.MetricName)
return nil
}
func resourceAwsWafRuleUpdate(d *schema.ResourceData, meta interface{}) error {
conn := meta.(*AWSClient).wafconn
if d.HasChange("predicates") {
o, n := d.GetChange("predicates")
oldP, newP := o.(*schema.Set).List(), n.(*schema.Set).List()
err := updateWafRuleResource(d.Id(), oldP, newP, conn)
if err != nil {
return fmt.Errorf("Error Updating WAF Rule: %s", err)
}
}
return resourceAwsWafRuleRead(d, meta)
}
func resourceAwsWafRuleDelete(d *schema.ResourceData, meta interface{}) error {
conn := meta.(*AWSClient).wafconn
oldPredicates := d.Get("predicates").(*schema.Set).List()
if len(oldPredicates) > 0 {
noPredicates := []interface{}{}
err := updateWafRuleResource(d.Id(), oldPredicates, noPredicates, conn)
if err != nil {
return fmt.Errorf("Error updating WAF Rule Predicates: %s", err)
}
}
wr := newWafRetryer(conn)
_, err := wr.RetryWithToken(func(token *string) (interface{}, error) {
req := &waf.DeleteRuleInput{
ChangeToken: token,
RuleId: aws.String(d.Id()),
}
log.Printf("[INFO] Deleting WAF Rule")
return conn.DeleteRule(req)
})
if err != nil {
return fmt.Errorf("Error deleting WAF Rule: %s", err)
}
return nil
}
func updateWafRuleResource(id string, oldP, newP []interface{}, conn *waf.WAF) error {
wr := newWafRetryer(conn)
_, err := wr.RetryWithToken(func(token *string) (interface{}, error) {
req := &waf.UpdateRuleInput{
ChangeToken: token,
RuleId: aws.String(id),
Updates: diffWafRulePredicates(oldP, newP),
}
return conn.UpdateRule(req)
})
if err != nil {
return fmt.Errorf("Error Updating WAF Rule: %s", err)
}
return nil
}