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Expansion of variables inside single quotes in a command in Bash
...ipt"
If the contents of $myvar is untrusted, here is an exploit:
myvar='foo"; echo "you were hacked'
Instead of the above invocation, use positional arguments. The following invocation is better -- it's not exploitable:
script='echo "arg 1 is: $1"'
/bin/sh -c "$script" -- "$myvar"
Note the u...
Can modules have properties the same way that objects can?
...m is that properties must be on the class, not the instance: if you do f = Foo(), f.some_property = property(...), it'll fail in the same way as if you naïvely put it in a module. The solution is to put it in the class, but since you don't want all modules having the property, you subclass (see Unk...
Mockito: InvalidUseOfMatchersException
...ected the exception went away. E.g. inside below Java class,
public class Foo {
String getName(String id) {
return mMap.get(id);
}
}
the method String getName(String id) has to be AT LEAST protected level so that the mocking mechanism (sub-classing) can work.
...
Access to Modified Closure
... Closure();
closure.files = new string[3];
closure.files[0] = "notfoo";
closure.files[1] = "bar";
closure.files[2] = "notbaz";
var arrayToSearch = new string[] { "foo", "bar", "baz" };
//this works, because the predicates are being executed during the loop
for (closure...
Exception messages in English?
...nnot be null' part of the message generated when an ArgumentNullException("foo") exception is thrown, for example. In those cases, the message will still appear (partially) localized, even when using the above code.
Other than by using impractical hacks, such as running all your non-UI code on a th...
Delete all but the most recent X files in bash
...spaces" is dangerous. Consider a name that contains literal quotes: touch 'foo " bar' will throw off the whole rest of the command.
– Charles Duffy
Jan 18 '16 at 16:55
2
...
jquery data selector
...features you add, the slower it'll be. If the logic is complex, then use $(foo).filter(function(){...}).
– James
May 24 '10 at 12:21
...
How to generate a random int in C?
...enSSL (or other userspace PRNGs).
For example:
#include "sodium.h"
int foo()
{
char myString[32];
uint32_t myInt;
if (sodium_init() < 0) {
/* panic! the library couldn't be initialized, it is not safe to use */
return 1;
}
/* myString will be an array o...
JPQL IN clause: Java-Arrays (or Lists, Sets…)?
...ateQuery(qlString, Item.class);
List<String> names = Arrays.asList("foo", "bar");
q.setParameter("names", names);
List<Item> actual = q.getResultList();
assertNotNull(actual);
assertEquals(2, actual.size());
Tested with EclipseLInk. With Hibernate 3.5.1, you'll need to surround the ...
How do I import the Django DoesNotExist exception?
...
This is how I do such a test.
from foo.models import Answer
def test_z_Kallie_can_delete_discussion_response(self):
...snip...
self._driver.get("http://localhost:8000/questions/3/want-a-discussion")
try:
answer = Answer.objects.get(body__exact ...