Refactor `Trends::Query` to avoid brakeman sql injection warnings (#25881)

pull/25882/head
Matt Jankowski 2023-07-12 08:19:20 -04:00 committed by GitHub
parent ecd8e0d612
commit 1ef014802b
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2 changed files with 18 additions and 29 deletions

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@ -68,12 +68,10 @@ class Trends::Query
alias to_a to_ary
def to_arel
tmp_ids = ids
if tmp_ids.empty?
if ids_for_key.empty?
klass.none
else
scope = klass.joins("join unnest(array[#{tmp_ids.join(',')}]) with ordinality as x (id, ordering) on #{klass.table_name}.id = x.id").reorder('x.ordering')
scope = klass.joins(sanitized_join_sql).reorder('x.ordering')
scope = scope.offset(@offset) if @offset.present?
scope = scope.limit(@limit) if @limit.present?
scope
@ -95,8 +93,22 @@ class Trends::Query
self
end
def ids
redis.zrevrange(key, 0, -1).map(&:to_i)
def ids_for_key
@ids_for_key ||= redis.zrevrange(key, 0, -1).map(&:to_i)
end
def sanitized_join_sql
ActiveRecord::Base.sanitize_sql_array(join_sql_array)
end
def join_sql_array
[join_sql_query, ids_for_key]
end
def join_sql_query
<<~SQL.squish
JOIN unnest(array[?]) WITH ordinality AS x (id, ordering) ON #{klass.table_name}.id = x.id
SQL
end
def perform_queries

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@ -23,29 +23,6 @@
],
"note": ""
},
{
"warning_type": "SQL Injection",
"warning_code": 0,
"fingerprint": "30dfe36e87fe1b8f239df9a33d576e44a9863f73b680198d4713be6540ae61d3",
"check_name": "SQL",
"message": "Possible SQL injection",
"file": "app/models/trends/query.rb",
"line": 76,
"link": "https://brakemanscanner.org/docs/warning_types/sql_injection/",
"code": "klass.joins(\"join unnest(array[#{ids.join(\",\")}]) with ordinality as x (id, ordering) on #{klass.table_name}.id = x.id\")",
"render_path": null,
"location": {
"type": "method",
"class": "Trends::Query",
"method": "to_arel"
},
"user_input": "ids.join(\",\")",
"confidence": "Weak",
"cwe_id": [
89
],
"note": ""
},
{
"warning_type": "Cross-Site Scripting",
"warning_code": 2,