.semgrep.yml

rules:
  - id: acceptance-test-naming-parent-disappears
    languages: [go]
    message: Prefer naming acceptance tests with _disappears_Parent suffix
    paths:
      include:
        - "internal/**/*_test.go"
    patterns:
      - pattern: func $FUNCNAME(t *testing.T) { ... }
      - metavariable-regex:
          metavariable: "$FUNCNAME"
          regex: "^TestAcc[^_]+_([a-zA-Z]+[dD]isappears|[^_]+_disappears)$"
    severity: WARNING

  - id: aws-sdk-go-multiple-service-imports
    languages: [go]
    message: Resources should not implement multiple AWS service functionality
    paths:
      include:
        - internal/
      exclude:
        - "internal/service/**/*_test.go"
        - "internal/service/**/sweep.go"
        - "internal/acctest/acctest.go"
        - "internal/conns/conns.go"
    patterns:
      - pattern: |
          import ("$X")
          import ("$Y")
      - metavariable-regex:
          metavariable: '$X'
          regex: '^"github.com/aws/aws-sdk-go/service/[^/]+"$'
      - metavariable-regex:
          metavariable: '$Y'
          regex: '^"github.com/aws/aws-sdk-go/service/[^/]+"$'
      # wafregional uses a number of resources from waf
      - pattern-not: |
          import ("github.com/aws/aws-sdk-go/service/waf")
          import ("github.com/aws/aws-sdk-go/service/wafregional")
    severity: WARNING

  - id: prefer-aws-go-sdk-pointer-conversion-assignment
    languages: [go]
    message: Prefer AWS Go SDK pointer conversion functions for dereferencing during assignment, e.g. aws.StringValue()
    paths:
      include:
        - internal/service
      exclude:
        - internal/service/ec2
        - internal/service/elasticbeanstalk
        - internal/service/elasticsearch
        - internal/service/elb
        - internal/service/emr
        - internal/service/gamelift
        - internal/service/iam
        - internal/service/lambda
        - internal/service/opsworks
        - internal/service/rds
        - internal/service/redshift
        - internal/service/route53
        - internal/service/s3
        - internal/service/servicediscovery
        - internal/service/ssm
    patterns:
      - pattern: '$LHS = *$RHS'
      - pattern-not: '*$LHS2 = *$RHS'
    severity: WARNING

  - id: prefer-aws-go-sdk-pointer-conversion-conditional
    languages: [go]
    message: Prefer AWS Go SDK pointer conversion functions for dereferencing during conditionals, e.g. aws.StringValue()
    paths:
      include:
        - internal/service
      exclude:
        - internal/service/**/*_test.go
        - internal/service/dax
        - internal/service/docdb
        - internal/service/ec2
        - internal/service/ecs
        - internal/service/elasticache
        - internal/service/elasticbeanstalk
        - internal/service/elb
        - internal/service/rds
        - internal/service/redshift
    patterns:
      - pattern-either:
        - pattern: '$LHS == *$RHS'
        - pattern: '$LHS != *$RHS'
        - pattern: '$LHS > *$RHS'
        - pattern: '$LHS < *$RHS'
        - pattern: '$LHS >= *$RHS'
        - pattern: '$LHS <= *$RHS'
        - pattern: '*$LHS == $RHS'
        - pattern: '*$LHS != $RHS'
        - pattern: '*$LHS > $RHS'
        - pattern: '*$LHS < $RHS'
        - pattern: '*$LHS >= $RHS'
        - pattern: '*$LHS <= $RHS'
    severity: WARNING

  - id: aws-go-sdk-pointer-conversion-ResourceData-SetId
    fix: d.SetId(aws.StringValue($VALUE))
    languages: [go]
    message: Prefer AWS Go SDK pointer conversion aws.StringValue() function for dereferencing during d.SetId()
    paths:
      include:
        - internal/
    pattern: 'd.SetId(*$VALUE)'
    severity: WARNING

  - id: aws-go-sdk-pointer-conversion-immediate-dereference
    fix: $VALUE
    languages: [go]
    message: Using AWS Go SDK pointer conversion, e.g. aws.String(), with immediate dereferencing is extraneous
    paths:
      include:
        - internal/
    patterns:
      - pattern-either:
        - pattern: '*aws.Bool($VALUE)'
        - pattern: '*aws.Float64($VALUE)'
        - pattern: '*aws.Int64($VALUE)'
        - pattern: '*aws.String($VALUE)'
        - pattern: '*aws.Time($VALUE)'
    severity: WARNING

  - id: data-source-with-resource-read
    languages: [go]
    message: Calling a resource's Read method from within a data-source is discouraged
    paths:
      include:
        - internal/service/**/*_data_source.go
    patterns:
      - pattern-regex: '(resource.+Read|flatten.+Resource)'
      - pattern-inside: func $FUNCNAME(...) $RETURNTYPE { ... }
      - pattern-not-inside: |
          d.Set(..., []interface{}{ ... })
      - pattern-not-inside: |
          d.Set($ATTRIBUTE, $FUNC($APIOBJECT))
      - metavariable-regex:
          metavariable: "$FUNCNAME"
          regex: "dataSource.+Read"
    severity: WARNING

  - id: helper-acctest-RandInt-compiled
    languages: [go]
    message: Using `acctest.RandInt()` in constant or variable declaration will execute during compilation and not randomize, pass into string generating function instead
    paths:
      include:
        - internal/
    patterns:
      - pattern-either:
        - pattern: const $CONST = fmt.Sprintf(..., <... acctest.RandInt() ...>, ...)
        - pattern: var $VAR = fmt.Sprintf(..., <... acctest.RandInt() ...>, ...)
    severity: WARNING

  - id: helper-acctest-RandString-compiled
    languages: [go]
    message: Using `acctest.RandString()` in constant or variable declaration will execute during compilation and not randomize, pass into string generating function instead
    paths:
      include:
        - internal/
    patterns:
      - pattern-either:
        - pattern: const $CONST = fmt.Sprintf(..., <... acctest.RandString(...) ...>, ...)
        - pattern: var $VAR = fmt.Sprintf(..., <... acctest.RandString(...) ...>, ...)
    severity: WARNING

  - id: helper-acctest-RandomWithPrefix-compiled
    languages: [go]
    message: Using `acctest.RandomWithPrefix()` in constant or variable declaration will execute during compilation and not randomize, pass into string generating function instead
    paths:
      include:
        - internal/
    patterns:
      - pattern-either:
        - pattern: const $CONST = fmt.Sprintf(..., <... acctest.RandomWithPrefix(...) ...>, ...)
        - pattern: var $VAR = fmt.Sprintf(..., <... acctest.RandomWithPrefix(...) ...>, ...)
    severity: WARNING

  - id: helper-schema-Set-extraneous-NewSet-with-flattenStringList
    languages: [go]
    message: Prefer `flex.FlattenStringSet()` function for casting a list of string pointers to a set
    paths:
      include:
        - internal/
    pattern: schema.NewSet(schema.HashString, flex.FlattenStringList($APIOBJECT))
    severity: WARNING

  - id: helper-schema-Set-extraneous-expandStringList-with-List
    languages: [go]
    message: Prefer `flex.ExpandStringSet()` function for casting a set to a list of string pointers
    paths:
      include:
        - internal/
    patterns:
      - pattern-either:
        - pattern: flex.ExpandStringList($SET.List())
        - pattern: |
            $LIST := $SET.List()
            ...
            flex.ExpandStringList($LIST)
    severity: WARNING

  - id: helper-schema-ResourceData-GetOk-with-extraneous-conditional
    languages: [go]
    message: Zero value conditional check after `d.GetOk()` is extraneous
    paths:
      include:
        - internal/
    patterns:
      - pattern-either:
        - pattern: if $VALUE, $OK := d.GetOk($KEY); $OK && $VALUE.(bool) { $BODY }
        - pattern: if $VALUE, $OK := d.GetOk($KEY); $OK && $VALUE.(int) != 0 { $BODY }
        - pattern: if $VALUE, $OK := d.GetOk($KEY); $OK && $VALUE.(int) > 0 { $BODY }
        - pattern: if $VALUE, $OK := d.GetOk($KEY); $OK && $VALUE.(string) != "" { $BODY }
        - pattern: if $VALUE, $OK := d.GetOk($KEY); $OK && len($VALUE.(string)) > 0 { $BODY }
    severity: WARNING

  - id: helper-schema-ResourceData-Set-extraneous-value-pointer-conversion
    fix: d.Set($ATTRIBUTE, $APIOBJECT)
    languages: [go]
    message: AWS Go SDK pointer conversion function for `d.Set()` value is extraneous
    paths:
      include:
        - internal/
    patterns:
      - pattern-either:
          - pattern: d.Set($ATTRIBUTE, aws.BoolValue($APIOBJECT))
          - pattern: d.Set($ATTRIBUTE, aws.Float64Value($APIOBJECT))
          - pattern: d.Set($ATTRIBUTE, aws.IntValue($APIOBJECT))
          - pattern: d.Set($ATTRIBUTE, aws.Int64Value($APIOBJECT))
          - pattern: d.Set($ATTRIBUTE, int(aws.Int64Value($APIOBJECT)))
          - pattern: d.Set($ATTRIBUTE, aws.StringValue($APIOBJECT))
    severity: WARNING

  # Not sure why this isn't working
  # - id: helper-schema-ResourceData-DataSource-Set-tags
  #   languages: [go]
  #   message: (schema.ResourceData).Set() call with the tags key should include IgnoreConfig in the value
  #   paths:
  #     include:
  #       - internal/service/**/*_data_source.go
  #     exclude:
  #       - internal/service/**/*.go
  #   patterns:
  #     - pattern-inside: func $READMETHOD(...) $ERRORTYPE { ... }
  #     - pattern: if err := d.Set("tags", $TAGSMAP); err != nil { ... }
  #     - pattern-not: if err := d.Set("tags", $KEYVALUETAGS.IgnoreAws().IgnoreConfig($CONFIG).Map()); err != nil { ... }
  #   severity: WARNING

  - id: helper-schema-ResourceData-Resource-Set-tags
    languages: [go]
    message: (schema.ResourceData).Set() call with the tags key should be preceded by a call to IgnoreConfig or include IgnoreConfig in the value in the case of ASG
    paths:
      include:
        - internal/service/**/*.go
      exclude:
        - internal/service/**/*_data_source.go
    patterns:
      - pattern-inside: func $READMETHOD(...) $ERRORTYPE { ... }
      - pattern-either:
          - pattern: |
              tags := $TAGS
              ...
              if err := d.Set("tags", $TAGSMAP); err != nil { ... }
          - pattern: |
              tags = $TAGS
              ...
              if err := d.Set("tags", $TAGSMAP); err != nil { ... }
          - pattern: |
              $ASGTAGS := keyvaluetags.AutoscalingKeyValueTags(...)
              ...
              if err := d.Set("tags", $TAGSMAP); err != nil { ... }
      - pattern-not-regex: 'keyvaluetags.AutoscalingKeyValueTags\(.+\).IgnoreAws\(\).IgnoreConfig'
      - pattern-not: |
          tags = $KEYVALUETAGS.IgnoreAws().IgnoreConfig($CONFIG)
          ...
      - pattern-not: |
          tags = $KEYVALUETAGS.$IGNORESERVICE().IgnoreConfig($CONFIG)
          ...
      - pattern-not: |
          tags := keyvaluetags.$VALUETAGS($RESOURCETAGS).IgnoreAws().IgnoreConfig($CONFIG)
          ...
      - pattern-not: |
          tags = keyvaluetags.$VALUETAGS($RESOURCETAGS).IgnoreAws().IgnoreConfig($CONFIG)
          ...
      - pattern-not: |
          tags = $VALUETAGS($RESOURCETAGS).IgnoreAWS().IgnoreConfig($CONFIG).Ignore($IGNORE)
          ...
    severity: WARNING

  - id: helper-schema-ResourceData-SetId-empty-without-IsNewResource-check
    languages: [go]
    message: Calling `d.SetId("")` should ensure `!d.IsNewResource()` is also checked
    paths:
      include:
        - internal/service
      exclude:
        - internal/service/**/*_data_source.go
        - internal/service/[b-ce-g]*
        - internal/service/d[a-df-z]*
        - internal/service/devicefarm
        - internal/service/i*
        - internal/service/[k-r]*
        - internal/service/s[a-df-z3]*
        - internal/service/se[d-z]*
        - internal/service/sec[a-t]*
        - internal/service/securityhub
        - internal/service/[t-x]*
    patterns:
      - pattern-either:
        - pattern: |
            d.SetId("")
            ...
            return nil
      - pattern-not-inside: |
          if ... {
            if <... d.IsNewResource() ...> { ... }
            ...
            d.SetId("")
            ...
            return nil
          }
      - pattern-not-inside: |
          if <... !d.IsNewResource() ...> { ... }
    severity: WARNING

  - id: helper-schema-resource-Retry-without-TimeoutError-check
    languages: [go]
    message: Check resource.Retry() errors with tfresource.TimedOut()
    paths:
      exclude:
        - "*_test.go"
        - sweep.go
      include:
        - internal/
    patterns:
      - pattern-either:
        - patterns:
          - pattern-either:
            - pattern: |
                $ERR := resource.Retry(...)
                ...
                return ...
            - pattern: |
                $ERR = resource.Retry(...)
                ...
                return ...
          - pattern-not: |
              $ERR := resource.Retry(...)
              ...
              if isResourceTimeoutError($ERR) { ... }
              ...
              return ...
          - pattern-not: |
              $ERR = resource.Retry(...)
              ...
              if isResourceTimeoutError($ERR) { ... }
              ...
              return ...
          - pattern-not: |
              $ERR := resource.Retry(...)
              ...
              if tfresource.TimedOut($ERR) { ... }
              ...
              return ...
          - pattern-not: |
              $ERR = resource.Retry(...)
              ...
              if tfresource.TimedOut($ERR) { ... }
              ...
              return ...
        - patterns:
          - pattern-either:
            - pattern: |
                $ERR := resource.RetryContext(...)
                ...
                return ...
            - pattern: |
                $ERR = resource.RetryContext(...)
                ...
                return ...
          - pattern-not: |
              $ERR := resource.RetryContext(...)
              ...
              if isResourceTimeoutError($ERR) { ... }
              ...
              return ...
          - pattern-not: |
              $ERR = resource.RetryContext(...)
              ...
              if isResourceTimeoutError($ERR) { ... }
              ...
              return ...
          - pattern-not: |
              $ERR := resource.RetryContext(...)
              ...
              if tfresource.TimedOut($ERR) { ... }
              ...
              return ...
          - pattern-not: |
              $ERR = resource.RetryContext(...)
              ...
              if tfresource.TimedOut($ERR) { ... }
              ...
              return ...
    severity: WARNING

  - id: helper-schema-TimeoutError-check-doesnt-return-output
    languages: [go]
    message: If the resource.Retry() or resource.RetryContext() function returns a value, ensure the isResourceTimeoutError() check does as well
    paths:
      exclude:
        - "*_test.go"
      include:
        - internal/
    patterns:
      - pattern-either:
        - patterns:
          - pattern: |
              if isResourceTimeoutError($ERR) {
                _, $ERR = $CONN.$FUNC(...)
              }
          - pattern-not-inside: |
              $ERR = resource.Retry(..., func() *resource.RetryError {
                ...
                _, $ERR2 = $CONN.$FUNC(...)
                ...
              })
              ...
              if isResourceTimeoutError($ERR) { ... }
          - pattern-not-inside: |
              $ERR = resource.RetryContext(..., func() *resource.RetryError {
                ...
                _, $ERR2 = $CONN.$FUNC(...)
                ...
              })
              ...
              if isResourceTimeoutError($ERR) { ... }
        - patterns:
          - pattern: |
              if tfresource.TimedOut($ERR) {
                _, $ERR = $CONN.$FUNC(...)
              }
          - pattern-not-inside: |
              $ERR = resource.Retry(..., func() *resource.RetryError {
                ...
                _, $ERR2 = $CONN.$FUNC(...)
                ...
              })
              ...
              if tfresource.TimedOut($ERR) { ... }
          - pattern-not-inside: |
              $ERR = resource.RetryContext(..., func() *resource.RetryError {
                ...
                _, $ERR2 = $CONN.$FUNC(...)
                ...
              })
              ...
              if tfresource.TimedOut($ERR) { ... }
    severity: WARNING

  - id: is-not-found-error
    languages: [go]
    message: Check for resource.NotFoundError errors with tfresource.NotFound()
    paths:
      include:
        - internal/
    patterns:
      - pattern-either:
        - patterns:
          - pattern: |
              var $CAST *resource.NotFoundError
              ...
              errors.As($ERR, &$CAST)
          - pattern-not-inside: |
              var $CAST *resource.NotFoundError
              ...
              errors.As($ERR, &$CAST)
              ...
              $CAST.$FIELD
        - patterns:
          - pattern: |
              $X, $Y := $ERR.(*resource.NotFoundError)
    severity: WARNING

  - id: time-equality
    languages: [go]
    message: Use time.Equal() instead of ==
    paths:
      include:
        - internal/
    patterns:
      - pattern-either:
        - pattern: |
            aws.TimeValue($X) == $Y
        - pattern: |
            aws.TimeValue($X) != $Y
        - pattern: |
            ($X : time.Time) == $Y
        - pattern: |
            ($X : time.Time) != $Y
        - pattern: |
            $X == aws.TimeValue($Y)
        - pattern: |
            $X != aws.TimeValue($Y)
        - pattern: |
            $X == ($Y : time.Time)
        - pattern: |
            $X != ($Y : time.Time)
    severity: WARNING

  - id: prefer-pagination-bool-var-last-page
    languages: [go]
    message: Use lastPage for bool variable in pagination functions
    paths:
      include:
        - internal/
    patterns:
      - pattern: |
          $X.$Z(..., func(..., $Y bool) {
            ...
          })
      - pattern-not: |
          $X.$Z(..., func(..., lastPage bool) {
            ...
          })
      - pattern-not: |
          $X.$Z(..., func(..., _ bool) {
            ...
          })
      - metavariable-regex:
          metavariable: '$Z'
          regex: '.*Pages$'
    severity: WARNING

  - id: calling-fmt.Print-and-variants
    languages: [go]
    message: Do not call `fmt.Print` and variant
    paths:
      include:
        - internal/
      exclude:
        - providerlint/vendor/
    patterns:
      - pattern-either:
        - pattern: |
            fmt.Print(...)
        - pattern: |
            fmt.Printf(...)
        - pattern: |
            fmt.Println(...)
    severity: WARNING

  - id: domain-names
    languages: [go]
    message: Domain names should be in the namespaces defined in RFC 6761 (https://datatracker.ietf.org/doc/html/rfc6761) as reserved for testing
    paths:
      include:
        - internal/service
      exclude:
        - internal/service/firehose/delivery_stream_test.go
        - internal/service/fsx/windows_file_system_test.go
        - internal/service/iam/openid_connect_provider_test.go
        - internal/service/mq/broker_test.go
        - internal/service/mq/forge_test.go
        - internal/service/route53/sweep.go
        - internal/service/s3/bucket_test.go
        - internal/service/s3/object_test.go
        - internal/service/storagegateway/cached_iscsi_volume.go
        - internal/service/storagegateway/cached_iscsi_volume_test.go
        - internal/service/storagegateway/stored_iscsi_volume_test.go
        - internal/service/transfer/access_test.go
        - internal/service/transfer/server_test.go
    patterns:
      - patterns:
        - pattern-regex: '(([-a-zA-Z0-9]{2,}\.)|(%[sdftq]))+(com|net|org)\b'
      - pattern-inside: '($X : string)'
      - pattern-not-regex: 'amazonaws\.com'
      - pattern-not-regex: 'awsapps\.com'
      - pattern-not-regex: '@(([-a-zA-Z0-9]{2,}\.)|(%[sdftq]))+(com|net|org)\b' # exclude domain names in email addresses
      - pattern-not-regex: '[^-a-zA-Z0-9]example\.com'
      - pattern-not-regex: '[^-a-zA-Z0-9]example\.net'
      - pattern-not-regex: '[^-a-zA-Z0-9]example\.org'
      - pattern-not-regex: 'github\.com'
      - pattern-not-regex: 'aws\.amazon\.com'
      - pattern-not-regex: 'graph\.facebook\.com'
      - pattern-not-regex: 'people\.googleapis\.com'
      - pattern-not-regex: 'www\.googleapis\.com'
      - pattern-not-regex: 'accounts\.google\.com'
      - pattern-not-regex: '[-a-z0-9]+\.apps\.googleusercontent\.com'
      - pattern-not-regex: 'elasticbeanstalk\.com'
      - pattern-not-regex: 'awsglobalaccelerator\.com'
      - pattern-not-regex: 'cloudfront\.net'
      - pattern-not-regex: 'http://json-schema\.org/draft-0\d/schema'
      - pattern-not-regex: 'http://activemq.apache.org/schema/core'
      - pattern-not-regex: 'mcr.microsoft.com'
    severity: WARNING

  - id: email-address
    languages: [go]
    message: Use default email address or generate a random email address. https://github.com/hashicorp/terraform-provider-aws/blob/main/docs/contributing/running-and-writing-acceptance-tests.md#hardcoded-email-addresses
    paths:
      include:
        - internal/
    patterns:
      - pattern-regex: '[-_A-Za-z0-9.+]+@([-A-Za-z0-9]+\.)(com|net|org)'
      - pattern-not-regex: 'no-reply@hashicorp\.com'
      - pattern-inside: '($X : string)'
    severity: WARNING

  - id: ssh-key
    languages: [go]
    message: Generate random SSH keys using acctest.RandSSHKeyPair() or RandSSHKeyPairSize(). https://github.com/hashicorp/terraform-provider-aws/blob/main/docs/contributing/running-and-writing-acceptance-tests.md#hardcoded-ssh-key
    paths:
      include:
        - internal/
      exclude:
        - providerlint/vendor/
    patterns:
      # This isn't technically the correct regex, but for some reason adding a '+' causes the regex to
      # miss some SSH keys. AFAICT, this is good enough.
      - pattern-regex: 'ssh-rsa [A-Za-z0-9/]+'
      - pattern-inside: '($X : string)'
    severity: WARNING

  - id: non-tags-change-detection
    languages: [go]
    message: Incorrect form of non-tags change detection. https://github.com/hashicorp/terraform-provider-aws/blob/main/docs/contributing/contribution-checklists.md#resource-tagging-code-implementation
    paths:
      include:
        - internal/
    patterns:
      - pattern: 'if d.HasChangeExcept("tags_all") {...}'
    severity: WARNING

  - id: unnecessary-literal-type-conversion
    languages: [go]
    message: Literal numbers do not need type conversions
    paths:
      include:
        - internal/
    patterns:
      - pattern: "aws.Int64(int64($X))"
      - metavariable-regex:
          metavariable: $X
          regex: (\d+)
    severity: ERROR
    fix: "aws.Int64($X)"

  - id: calling-SetId-with-empty-string-in-resource-create
    languages: [go]
    message: Do not call `d.SetId("")` inside a resource create function
    paths:
      include:
        - internal/service/
    patterns:
      - pattern: |
          func $FUNC(...) {
            ...
            d.SetId("")
          }
      - metavariable-regex:
          metavariable: "$FUNC"
          regex: "^resource\\w*(Create|Put|Set|Upsert|Enable)$"
    severity: WARNING

  - id: calling-SetId-in-resource-delete
    languages: [go]
    message: Do not call `d.SetId(...)` inside a resource delete function
    paths:
      include:
        - internal/service/
    patterns:
      - pattern: |
          func $FUNC(...) {
            ...
            d.SetId(...)
          }
      - metavariable-regex:
          metavariable: "$FUNC"
          regex: "^resource\\w*(Delete|Disable)$"
    severity: WARNING

  - id: avoid-string-is-empty-validation
    languages: [go]
    message: Empty strings should not be included in validation
    paths:
      include:
        - internal/
    patterns:
      - pattern: validation.Any(..., validation.StringIsEmpty, ...)
    severity: ERROR