prometheus/util/fuzzing/corpus.go
Julien Pivotto de0a864b5c Fuzzing: Move to go fuzzing
Signed-off-by: Julien Pivotto <291750+roidelapluie@users.noreply.github.com>
2026-01-12 12:59:10 +01:00

123 lines
3.6 KiB
Go

// Copyright The Prometheus Authors
// 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 fuzzing
import (
"github.com/prometheus/prometheus/promql/parser"
"github.com/prometheus/prometheus/promql/promqltest"
)
// GetCorpusForFuzzParseMetricText returns the seed corpus for FuzzParseMetricText.
func GetCorpusForFuzzParseMetricText() [][]byte {
return [][]byte{
[]byte(""),
[]byte("metric_name 1.0"),
[]byte("# HELP metric_name help text\n# TYPE metric_name counter\nmetric_name 1.0"),
[]byte("o { quantile = \"1.0\", a = \"b\" } 8.3835e-05"),
[]byte("# HELP api_http_request_count The total number of HTTP requests.\n# TYPE api_http_request_count counter\nhttp_request_count{method=\"post\",code=\"200\"} 1027 1395066363000"),
[]byte("msdos_file_access_time_ms{path=\"C:\\\\DIR\\\\FILE.TXT\",error=\"Cannot find file:\\n\\\"FILE.TXT\\\"\"} 1.234e3"),
[]byte("metric_without_timestamp_and_labels 12.47"),
[]byte("something_weird{problem=\"division by zero\"} +Inf -3982045"),
[]byte("http_request_duration_seconds_bucket{le=\"+Inf\"} 144320"),
[]byte("go_gc_duration_seconds{ quantile=\"0.9\", a=\"b\"} 8.3835e-05"),
[]byte("go_gc_duration_seconds{ quantile=\"1.0\", a=\"b\" } 8.3835e-05"),
[]byte("go_gc_duration_seconds{ quantile = \"1.0\", a = \"b\" } 8.3835e-05"),
}
}
// GetCorpusForFuzzParseOpenMetric returns the seed corpus for FuzzParseOpenMetric.
func GetCorpusForFuzzParseOpenMetric() [][]byte {
return [][]byte{
[]byte(""),
[]byte("# TYPE metric_name counter\nmetric_name_total 1.0"),
[]byte("# HELP metric_name help text\n# TYPE metric_name counter\nmetric_name_total 1.0\n# EOF"),
}
}
// GetCorpusForFuzzParseMetricSelector returns the seed corpus for FuzzParseMetricSelector.
func GetCorpusForFuzzParseMetricSelector() []string {
return []string{
"",
"metric_name",
`metric_name{label="value"}`,
`{label="value"}`,
`metric_name{label=~"val.*"}`,
}
}
// GetCorpusForFuzzParseExpr returns the seed corpus for FuzzParseExpr.
func GetCorpusForFuzzParseExpr() ([]string, error) {
// Enable experimental features to parse all test expressions.
parser.EnableExperimentalFunctions = true
parser.ExperimentalDurationExpr = true
parser.EnableExtendedRangeSelectors = true
defer func() {
parser.EnableExperimentalFunctions = false
parser.ExperimentalDurationExpr = false
parser.EnableExtendedRangeSelectors = false
}()
// Get built-in test expressions.
builtInExprs, err := promqltest.GetBuiltInExprs()
if err != nil {
return nil, err
}
// Add additional seed corpus.
additionalExprs := []string{
"",
"1",
"metric_name",
`"str"`,
// Numeric literals
".5",
"5.",
"123.4567",
"5e3",
"5e-3",
"+5.5e-3",
"0xc",
"0755",
"-0755",
"+Inf",
"-Inf",
// Basic binary operations
"1 + 1",
"1 - 1",
"1 * 1",
"1 / 1",
"1 % 1",
// Comparison operators
"1 == 1",
"1 != 1",
"1 > 1",
"1 >= 1",
"1 < 1",
"1 <= 1",
// Operations with identifiers
"foo == 1",
"foo * bar",
"2.5 / bar",
"foo and bar",
"foo or bar",
// Complex expressions
"+1 + -2 * 1",
"1 + 2/(3*1)",
// Comment
"#comment",
}
return append(builtInExprs, additionalExprs...), nil
}