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resource_aws_waf_regex_pattern_set.go
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resource_aws_waf_regex_pattern_set.go
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package aws
import (
"fmt"
"log"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/service/waf"
"github.com/hashicorp/terraform/helper/schema"
)
func resourceAwsWafRegexPatternSet() *schema.Resource {
return &schema.Resource{
Create: resourceAwsWafRegexPatternSetCreate,
Read: resourceAwsWafRegexPatternSetRead,
Update: resourceAwsWafRegexPatternSetUpdate,
Delete: resourceAwsWafRegexPatternSetDelete,
Schema: map[string]*schema.Schema{
"name": {
Type: schema.TypeString,
Required: true,
ForceNew: true,
},
"regex_pattern_strings": {
Type: schema.TypeSet,
Optional: true,
Elem: &schema.Schema{Type: schema.TypeString},
},
},
}
}
func resourceAwsWafRegexPatternSetCreate(d *schema.ResourceData, meta interface{}) error {
conn := meta.(*AWSClient).wafconn
log.Printf("[INFO] Creating WAF Regex Pattern Set: %s", d.Get("name").(string))
wr := newWafRetryer(conn)
out, err := wr.RetryWithToken(func(token *string) (interface{}, error) {
params := &waf.CreateRegexPatternSetInput{
ChangeToken: token,
Name: aws.String(d.Get("name").(string)),
}
return conn.CreateRegexPatternSet(params)
})
if err != nil {
return fmt.Errorf("Failed creating WAF Regex Pattern Set: %s", err)
}
resp := out.(*waf.CreateRegexPatternSetOutput)
d.SetId(*resp.RegexPatternSet.RegexPatternSetId)
return resourceAwsWafRegexPatternSetUpdate(d, meta)
}
func resourceAwsWafRegexPatternSetRead(d *schema.ResourceData, meta interface{}) error {
conn := meta.(*AWSClient).wafconn
log.Printf("[INFO] Reading WAF Regex Pattern Set: %s", d.Get("name").(string))
params := &waf.GetRegexPatternSetInput{
RegexPatternSetId: aws.String(d.Id()),
}
resp, err := conn.GetRegexPatternSet(params)
if err != nil {
// TODO: Replace with a constant once available
// See https://github.com/aws/aws-sdk-go/issues/1856
if isAWSErr(err, "WAFNonexistentItemException", "") {
log.Printf("[WARN] WAF Regex Pattern Set (%s) not found, removing from state", d.Id())
d.SetId("")
return nil
}
return err
}
d.Set("name", resp.RegexPatternSet.Name)
d.Set("regex_pattern_strings", aws.StringValueSlice(resp.RegexPatternSet.RegexPatternStrings))
return nil
}
func resourceAwsWafRegexPatternSetUpdate(d *schema.ResourceData, meta interface{}) error {
conn := meta.(*AWSClient).wafconn
log.Printf("[INFO] Updating WAF Regex Pattern Set: %s", d.Get("name").(string))
if d.HasChange("regex_pattern_strings") {
o, n := d.GetChange("regex_pattern_strings")
oldPatterns, newPatterns := o.(*schema.Set).List(), n.(*schema.Set).List()
err := updateWafRegexPatternSetPatternStrings(d.Id(), oldPatterns, newPatterns, conn)
if err != nil {
return fmt.Errorf("Failed updating WAF Regex Pattern Set: %s", err)
}
}
return resourceAwsWafRegexPatternSetRead(d, meta)
}
func resourceAwsWafRegexPatternSetDelete(d *schema.ResourceData, meta interface{}) error {
conn := meta.(*AWSClient).wafconn
oldPatterns := d.Get("regex_pattern_strings").(*schema.Set).List()
if len(oldPatterns) > 0 {
noPatterns := []interface{}{}
err := updateWafRegexPatternSetPatternStrings(d.Id(), oldPatterns, noPatterns, conn)
if err != nil {
return fmt.Errorf("Error updating WAF Regex Pattern Set: %s", err)
}
}
wr := newWafRetryer(conn)
_, err := wr.RetryWithToken(func(token *string) (interface{}, error) {
req := &waf.DeleteRegexPatternSetInput{
ChangeToken: token,
RegexPatternSetId: aws.String(d.Id()),
}
log.Printf("[INFO] Deleting WAF Regex Pattern Set: %s", req)
return conn.DeleteRegexPatternSet(req)
})
if err != nil {
return fmt.Errorf("Failed deleting WAF Regex Pattern Set: %s", err)
}
return nil
}
func updateWafRegexPatternSetPatternStrings(id string, oldPatterns, newPatterns []interface{}, conn *waf.WAF) error {
wr := newWafRetryer(conn)
_, err := wr.RetryWithToken(func(token *string) (interface{}, error) {
req := &waf.UpdateRegexPatternSetInput{
ChangeToken: token,
RegexPatternSetId: aws.String(id),
Updates: diffWafRegexPatternSetPatternStrings(oldPatterns, newPatterns),
}
return conn.UpdateRegexPatternSet(req)
})
if err != nil {
return fmt.Errorf("Failed updating WAF Regex Pattern Set: %s", err)
}
return nil
}