48 lines
1.2 KiB
Go
48 lines
1.2 KiB
Go
package sa1011
|
|
|
|
import (
|
|
"go/constant"
|
|
"unicode/utf8"
|
|
|
|
"honnef.co/go/tools/analysis/callcheck"
|
|
"honnef.co/go/tools/analysis/lint"
|
|
"honnef.co/go/tools/internal/passes/buildir"
|
|
|
|
"golang.org/x/tools/go/analysis"
|
|
)
|
|
|
|
var SCAnalyzer = lint.InitializeAnalyzer(&lint.Analyzer{
|
|
Analyzer: &analysis.Analyzer{
|
|
Name: "SA1011",
|
|
Requires: []*analysis.Analyzer{buildir.Analyzer},
|
|
Run: callcheck.Analyzer(checkUTF8CutsetRules),
|
|
},
|
|
Doc: &lint.RawDocumentation{
|
|
Title: `Various methods in the \"strings\" package expect valid UTF-8, but invalid input is provided`,
|
|
Since: "2017.1",
|
|
Severity: lint.SeverityError,
|
|
MergeIf: lint.MergeIfAny,
|
|
},
|
|
})
|
|
|
|
var Analyzer = SCAnalyzer.Analyzer
|
|
|
|
var checkUTF8CutsetRules = map[string]callcheck.Check{
|
|
"strings.IndexAny": check,
|
|
"strings.LastIndexAny": check,
|
|
"strings.ContainsAny": check,
|
|
"strings.Trim": check,
|
|
"strings.TrimLeft": check,
|
|
"strings.TrimRight": check,
|
|
}
|
|
|
|
func check(call *callcheck.Call) {
|
|
arg := call.Args[1]
|
|
if c := callcheck.ExtractConstExpectKind(arg.Value, constant.String); c != nil {
|
|
s := constant.StringVal(c.Value)
|
|
if !utf8.ValidString(s) {
|
|
arg.Invalid("argument is not a valid UTF-8 encoded string")
|
|
}
|
|
}
|
|
}
|