sicuro | Ruby sandbox in pure Ruby | Security library
kandi X-RAY | sicuro Summary
kandi X-RAY | sicuro Summary
Do not rely on this for security. It is a research experiment, and I have minimal security experience. If you need to run untrusted code, please get the assistance of somebody who actually knows security and understands sandboxing. And remember, blacklists are always ineffective — use whitelists instead. An attempt at creating a Ruby sandbox in pure Ruby.
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Trending Discussions on sicuro
QUESTION
I am using selenium junit for my project. When I try to run my test, it return this error:
...ANSWER
Answered 2021-May-21 at 18:18The problem was that the web page wasn't fully loaded before the click on the delete button. So I put a thread.sleep of 1000 ms to resolve it.
Correct code:
QUESTION
I have a problem with my program in c++: this program unexpectedly sets my variable n_alunni
to 0
when I cin >> verify;
even though I haven't written anything else to n_alunni
.
This is the code:
...ANSWER
Answered 2021-Apr-07 at 18:21The input into verify
is writing beyond the array bounds, overwriting other memory, among it your variable. Use std::string instead
or at least increase the array size beyond the expected input length (and, for a safe program, protect against boundary violations!).
In more detail, the array argument is, as is the case in many contexts, "adjusted" to a pointer to char; this matches the istream& operator>> (istream& is, char* s)
. This operator copies a "word" from the standard input into the memory pointed to. It skips any whitespace (for example, the newline left behind from when you last hit the enter key) and then copies characters from stdin to the indicated memory location; it stops before the next whitespace in the input (for example, the newline produced when you hit the enter key to "finish your input"). After the input characters are written the routine terminates the entered 1-character "word" with a null character so that it is a proper "C string" after the crude fashion that was modern in 1978.
If you entered a one-character word, that null character gets written to memory adjacent to your 1-char array, in this case n_alunni
. (You can verify that hypothesis by entering a number into n_alunni
that is larger than 255, thus altering more bytes which will not be affected by the zero byte. On an intel architecture the new value of n_alunni
after a one-character input should then be n_alunni & ~0xff
; that is, the same as after the input with the lowest byte zeroed out).
As is often the case, using std::string
for text is a safer way to handle unknown text. There is an istream& operator>> (istream& is, string& str)
that works just like the char *
overload, only safer.
QUESTION
i have a web portal that reads a MYSQL database and creates a row for each data found. In each of those rows there is a toggle button that should do one thing if it is checked, and something else if it is not.
I have it working but only for the first row. How do I get it to work for all rows?
...ANSWER
Answered 2020-Jun-29 at 14:37You are using the id "inServizio" to put a listener. But this id just affect one element in the DOM (in the first), because with id we just identify one in all the document.
Here a solution of many:
- In the element (HTML):
QUESTION
I want to paginate in a blade file different tabs , each tabs show different collections of object but each time i go to next page in one page it redirects to the first tab and also paginate each tab not just the one i wanted to paginate.
Blade Part Where i have tabs
...ANSWER
Answered 2020-May-31 at 17:25It redirects to the first tab because you use javascript tabs with active
class added to first tab. To resolve problem with tabs you need to change for each tabs nav to:
...
Also here:
But your problems with paginations will remain.
Here are 2 solutions:
- Use JS tabs and get data via Ajax request.
- Use 4 separated routes for each collection and add routes to tabs corresponding above example.
I hope it was clear.
QUESTION
ANSWER
Answered 2020-Jan-02 at 00:18An (modern) option is to use a flexbox.
QUESTION
I created a form where the user is asked to fill several fields (name, surname, email, phone number and comments).
I have the function validateForm * with an else if statement: if all fields are filled correctly it will activate a Modal which displays a "message 1" ("Are you sure that you want to send you info?"). Otherwise, it will display a specific message (message 2,3,4 or 5) which differs according to which field is left empty (i.e.: if the field "name" is filled correctly the modal will display "please insert your surname"; if both fields are filled the modal will display "please insert your email"; and so on...).
Instead than using a modal for each field I want to be filled out, I prefer to use a modal, associate an ID to it and exploit the JQuery .empty()
method to overwrite the text of the original content of the modal with the specific text for each event (event 1: field of name empty; event 2: field of surname empty, and so on...).
I wrote the following function:
...ANSWER
Answered 2019-May-16 at 15:18function validateForm() {
var showModal = true;
if ($('#name').val() == "") {
$("#testoMyModal").html("Inserisci il nome");
} else if ($('#surname').val() == "") {
$('#testoMyModal').html("Inserisci il cognome");
} else if ($('#email').val() == "") {
$('#testoMyModal').html("Inserisci l'indirizzo eMail");
} else if ($('#numero').val() == "") {
$('#testoMyModal').html("Inserisci il numero di telefono");
} else if ($('#commenti').val() == "") {
$('#testoMyModal').html("Inserisci il testo della richiesta");
} else {
showModal = false;
}
if (showModal) $('#myModal2').modal('show');
}
QUESTION
During a simple insertion query via PHP and MySQL, I find the following problem: it does not insert all the values of the radioButton .. actually actually only inserts one :( I can not understand why !! I think there is a problem with the $ _POST because by printing it I only get the value of the first radioButton jumping all the others ...
I am attaching screenshots to explain you better
...ANSWER
Answered 2018-Nov-09 at 10:54In your html code you use several tags. This results in submitting one of the forms will not send the contend of the other forms. So you just have to remove the form closing and opening again to make it work.
QUESTION
I have a Telerik RadGrid where I've put in the EditItemTemplate a RadComboBox (ID:DdlProducts) to load (on demand with filtering) a set of options.
Everything works fine except when I try to edit a row:
I'm not able to preset the selected value of the RadComboBox, because of the LoadOnDemand enabled.
I've followed several suggestions and example on the Telerik website, but obviously none of them works as expected.
Here is my code.
...ANSWER
Answered 2018-Sep-22 at 07:25Finally, I've solved by retrieving the row values using the DataBinder.Eval method:
QUESTION
I'm tried to manage a set of push notifications.
1. My first problem is that only last notification set up receive my smartphone. I believe that it hasn't create new instance but it overwrite the unique istance. How can I solve it?
2. My second problem is that i want that from app, the user can delete a schedule of a determinate notification.
This is my code in MovieAdapter.java (main methods are getNotification, scheduleNotification and deleteNotification ):
...ANSWER
Answered 2018-Sep-02 at 16:07Change this line
QUESTION
I am a newbie in python and I' training to make an app in Django to keep track of my clients problems in a personal training center.
I'm stuck in resolving a reverse match error for keyword arguments that is not passed. Honestly I am trying to understand how django manage this keyword arguments with no success.
The error that django throws me is:
...ANSWER
Answered 2018-Jul-31 at 10:49As far as I can see this exception is raised at PostListView
. In your template filogest/post_list.html
you have a detail button:
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