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Two-way encryption: I need to store passwords that can be retrieved
...successfully encrypted using mcrypt, run it through base64_encode and then convert it to hex code. Once in hex code it's easy to transfer in a variety of ways.
$td = mcrypt_module_open('tripledes', '', 'ecb', '');
$iv = mcrypt_create_iv (mcrypt_enc_get_iv_size($td), MCRYPT_RAND);
$key = substr("SUP...
How to return a file using Web API?
...e
{
// sendo file to client
byte[] bytes = Convert.FromBase64String(file.pdfBase64);
result = Request.CreateResponse(HttpStatusCode.OK);
result.Content = new ByteArrayContent(bytes);
result.Content.Headers.ContentDisposition = new...
Most efficient way to concatenate strings?
...choice though not for perf reasons. It can be clumsy syntax. Resharper can convert back and forth at will.
– usr
May 8 '18 at 16:13
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python location on mac osx
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On Mac OS X, it's in the Python framework in /System/Library/Frameworks/Python.framework/Resources.
Full path is:
/System/Library/Frameworks/Python.framework/Versions/2.7/Resources/Python.app/Contents/MacOS/Python
Btw it's easy to find out where you can find a speci...
Spring MVC type conversion : PropertyEditor or Converter?
I am looking for the easiest and simplest way to bind and convert data in Spring MVC. If possible, without doing any xml configuration.
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Get list of all tables in Oracle?
...ictionary table). Of course, you may want to exclude certain schemas like SYS and SYSTEM which have large numbers of Oracle tables that you probably don't care about.
Alternatively, if you do not have access to DBA_TABLES, you can see all the tables that your account has access to through the ALL_...
Getting MAC Address
... Used it personally, requires a specific install/compile on each system but works well.
– Aatch
Jun 20 '11 at 17:10
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How to list the size of each file and directory and sort by descending size in Bash?
... first)
ncdu
When I came to this question, I wanted to clean up my file system. The command line tool ncdu is way better suited to this task.
Installation on Ubuntu:
$ sudo apt-get install ncdu
Usage:
Just type ncdu [path] in the command line. After a few seconds for analyzing the path, you ...
How do you get the logical xor of two variables in Python?
... the ^ operator):
from operator import xor
xor(bool(a), bool(b)) # Note: converting to bools is essential
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Recursively counting files in a Linux directory
... not actually transfer the files!
I used the -x option to "don't cross filesystem boundaries", which means if you execute it for / and you have external hard disks attached, it will only count the files on the root partition.
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