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What's the point of the X-Requested-With header?
...cript. This also checks that the request wasn't POSTed from a regular HTML form, of which it is harder to verify it is not cross domain without the use of tokens. (However, checking the Origin header could be an option in supported browsers, although you will leave old browsers vulnerable.)
New Fla...
How do you effectively model inheritance in a database?
...ll always be null.
Table-Per-Concrete (TPC)
Each class has its own fully formed table with no references off to any other tables.
Given the classes above, you end up with these tables:
table Person
------------
int id (PK)
string firstname
string lastname
table Employee
--------------
int id (P...
“PKIX path building failed” and “unable to find valid certification path to requested target”
...dress bar, select "Certificate" -> "Details" -> "Export" and save in format "Der-encoded binary, single certificate".
Now you have file with keystore and you have to add it to your JVM. Determine location of cacerts files, eg.
C:\Program Files (x86)\Java\jre1.6.0_22\lib\security\cacerts.
Nex...
How can prepared statements protect from SQL injection attacks?
...lly pasted together with user input. The intent of the query was to show information about Bob. Either salary or bonus, based on user input. But the malicious user manipulates the input corrupting the query by tacking on the equivalent of an 'or true' to the where clause so that everything is return...
What's the difference between “STL” and “C++ Standard Library”?
... believe that not everybody "gets it". Clearly, the term's usage is not uniform.
In addition, there are some STL-like libraries that are in fact implementations of the original STL, not the C++ Standard Library. Until recently, STLPort was one of them (and even there, the confusion abounds!).
Furt...
How to post pictures to instagram using API
...;
// Set the path to the file that you wish to post.
// This must be jpeg format and it must be a perfect square
$filename = 'pictures/test.jpg';
// Set the caption for the photo
$caption = "Test caption";
// Define the user agent
$agent = GenerateUserAgent();
// Define the GuID
$guid = Generate...
Design by contract using assertions or exceptions? [closed]
...r in release builds, you can leverage logging so that developers see the information relevant to your assertion failing. In this document (martinfowler.com/ieeeSoftware/failFast.pdf), Jim Shore points out, "Remember, an error that occurs at the customer’s site made it through your testing process....
Detect encoding and make everything UTF-8
...Camerounaise de Football
Fédération Camerounaise de Football
I've transformed the function (forceUTF8) into a family of static functions on a class called Encoding. The new function is Encoding::toUTF8().
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How do you get the footer to stay at the bottom of a Web page?
...
@jlp: You need to add the form tag to the height:100% statement, else it will break the sticky footer. Like this: html, body, form {height: 100%;}
– dazbradbury
Mar 9 '12 at 13:21
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What is the concept of erasure in generics in Java?
...;String> and a List<Date> are exactly the same; the extra type information has been erased by the compiler.
Compare this with, say, C#, where the information is retained at execution time, allowing code to contain expressions such as typeof(T) which is the equivalent to T.class - except t...