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Harden scan robustness and tests

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This commit is contained in:
ZacharyZcR
2026-06-14 22:23:48 +08:00
parent 5ad914a1bb
commit c49c23c7f0
100 changed files with 4483 additions and 412 deletions
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webscan/lib/eval_string.go
+3 -3
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@@ -109,12 +109,12 @@ func registerStringImplementations() []*functions.Overload {
return types.NewErr("invalid length to 'substr'")
}
runes := []rune(str)
if start < 0 || length < 0 || int(start+length) > len(runes) {
if start < 0 || length < 0 || start > types.Int(len(runes)) || length > types.Int(len(runes))-start {
return types.NewErr("invalid start or length to 'substr'")
}
return types.String(runes[start : start+length])
return types.String(runes[int(start):int(start+length)])
}
return types.NewErr("too many arguments to 'substr'")
return types.NewErr("invalid argument count to 'substr'")
},
},
{