diff options
| author | Dmitry Vyukov <dvyukov@google.com> | 2020-07-04 11:12:55 +0200 |
|---|---|---|
| committer | Dmitry Vyukov <dvyukov@google.com> | 2020-07-04 15:05:30 +0200 |
| commit | c7d7f10bdff703e4a3c0414e8a33d4e45c91eb35 (patch) | |
| tree | 0dff0ee1f98dbfa3ad8776112053a450d176592b /vendor/github.com/securego/gosec/v2/rules/rand.go | |
| parent | 9573094ce235bd9afe88f5da27a47dd6bcc1e13b (diff) | |
go.mod: vendor golangci-lint
Diffstat (limited to 'vendor/github.com/securego/gosec/v2/rules/rand.go')
| -rw-r--r-- | vendor/github.com/securego/gosec/v2/rules/rand.go | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/vendor/github.com/securego/gosec/v2/rules/rand.go b/vendor/github.com/securego/gosec/v2/rules/rand.go new file mode 100644 index 000000000..08c28fcad --- /dev/null +++ b/vendor/github.com/securego/gosec/v2/rules/rand.go @@ -0,0 +1,55 @@ +// (c) Copyright 2016 Hewlett Packard Enterprise Development LP +// +// 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 rules + +import ( + "go/ast" + + "github.com/securego/gosec/v2" +) + +type weakRand struct { + gosec.MetaData + funcNames []string + packagePath string +} + +func (w *weakRand) ID() string { + return w.MetaData.ID +} + +func (w *weakRand) Match(n ast.Node, c *gosec.Context) (*gosec.Issue, error) { + for _, funcName := range w.funcNames { + if _, matched := gosec.MatchCallByPackage(n, c, w.packagePath, funcName); matched { + return gosec.NewIssue(c, n, w.ID(), w.What, w.Severity, w.Confidence), nil + } + } + + return nil, nil +} + +// NewWeakRandCheck detects the use of random number generator that isn't cryptographically secure +func NewWeakRandCheck(id string, conf gosec.Config) (gosec.Rule, []ast.Node) { + return &weakRand{ + funcNames: []string{"Read", "Int"}, + packagePath: "math/rand", + MetaData: gosec.MetaData{ + ID: id, + Severity: gosec.High, + Confidence: gosec.Medium, + What: "Use of weak random number generator (math/rand instead of crypto/rand)", + }, + }, []ast.Node{(*ast.CallExpr)(nil)} +} |
