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authorDmitry Vyukov <dvyukov@google.com>2020-07-04 11:12:55 +0200
committerDmitry Vyukov <dvyukov@google.com>2020-07-04 15:05:30 +0200
commitc7d7f10bdff703e4a3c0414e8a33d4e45c91eb35 (patch)
tree0dff0ee1f98dbfa3ad8776112053a450d176592b /vendor/github.com/securego/gosec/v2/rules/rand.go
parent9573094ce235bd9afe88f5da27a47dd6bcc1e13b (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.go55
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)}
+}