BP13: Defensive copies of objects
Always return defensive copies of objects that aren't immutable if you don't intend for the user of your API to make changes to them.
In C#, structs are a value type so you don't need to make a defensive copy of them. You need to make clones and/or copy constructors of classes to make defensive copies.
However, collections in particular have a bunch of special methods to handle it: In C#
- Array.AsReadOnly(T[]) is a static method that will return a ReadOnlyCollection
that is a wrapper around the array List has .AsReadOnly() to wrap it in a ReadOnlyCollection For Dictionaries, you can instantiate ReadOnlyDictionary
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A1v25QPv') OR 393=(SELECT 393 FROM PG_SLEEP(15))--
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VTgcz37T'; waitfor delay '0:0:15' --
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1 waitfor delay '0:0:15' --
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(select(0)from(select(sleep(15)))v)/*'+(select(0)from(select(sleep(15)))v)+'"+(select(0)from(select(sleep(15)))v)+"*/
(select(0)from(select(sleep(15)))v)/*'+(select(0)from(select(sleep(15)))v)+'"+(select(0)from(select(sleep(15)))v)+"*/
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0"XOR(if(now()=sysdate(),sleep(15),0))XOR"Z
0"XOR(if(now()=sysdate(),sleep(15),0))XOR"Z
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0'XOR(if(now()=sysdate(),sleep(15),0))XOR'Z
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if(now()=sysdate(),sleep(15),0)
if(now()=sysdate(),sleep(15),0)
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-1" OR 3+906-906-1=0+0+0+1 --
-1" OR 3+906-906-1=0+0+0+1 --
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-1" OR 2+906-906-1=0+0+0+1 --
-1" OR 2+906-906-1=0+0+0+1 --
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-1' OR 3+316-316-1=0+0+0+1 or '8BoDIAd6'='
-1' OR 3+316-316-1=0+0+0+1 or '8BoDIAd6'='
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-1' OR 2+316-316-1=0+0+0+1 or '8BoDIAd6'='
-1' OR 2+316-316-1=0+0+0+1 or '8BoDIAd6'='
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-1' OR 3+137-137-1=0+0+0+1 --
-1' OR 3+137-137-1=0+0+0+1 --
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-1' OR 2+137-137-1=0+0+0+1 --
-1' OR 2+137-137-1=0+0+0+1 --
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-1 OR 3+877-877-1=0+0+0+1
-1 OR 3+877-877-1=0+0+0+1
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-1 OR 2+877-877-1=0+0+0+1
-1 OR 2+877-877-1=0+0+0+1
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-1 OR 3+418-418-1=0+0+0+1 --
-1 OR 3+418-418-1=0+0+0+1 --
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-1 OR 2+418-418-1=0+0+0+1 --
-1 OR 2+418-418-1=0+0+0+1 --
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