openrijal’s gists

openrijal / ip2geo.sh

Created April 3, 2013 18:33

Bash Script to find Geolocation from IP Addresses in apache's access log. You need to have "geoiplookup" package from GeoLite package. The excerpts are taken from http://danielmiessler.com/blog/a-simple-script-for-harvesting-dns-country-state-and-city-information-from-a-list-of-ip-addresses

	#!/usr/bin/env bash
	cat /var/log/apache2/access_log \| awk '{print $1}' > ips.txt
	uniq ips.txt > uniqips.txt
	IPS=`cat uniqips.txt`
	for i in $IPS
	do
	echo "$i,`geoiplookup $i \| cut -d "," -f2 \| sed -e 's/^[\t]//'`" >> ipinfo.csv
	done

openrijal / rockpaperscissors.js

Last active December 16, 2015 01:08

Rock,Paper, Scissors GAME

	var userChoice = prompt("Do you choose rock, paper or scissors?");
	var computerChoice = Math.random();
	if (computerChoice <= (1/3)) {
	computerChoice = "rock";
	} else if(computerChoice <= (2/3)) {
	computerChoice = "paper";
	} else {
	computerChoice = "scissors";
	}
	compare(userChoice,computerChoice);

openrijal / media_to_uri.java

Last active April 21, 2021 03:26

Get Path from URI in Android.

	/*
	Input: URI -- something like content://com.example.app.provider/table2/dataset1
	Output: PATH -- something like /sdcard/DCIM/123242-image.jpg
	*/
	public String convertMediaUriToPath(Uri uri) {
	String [] proj={MediaStore.Images.Media.DATA};
	Cursor cursor = getContentResolver().query(uri, proj, null, null, null);
	int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
	cursor.moveToFirst();
	String path = cursor.getString(column_index);

openrijal / string_to_md5.java

Created May 1, 2013 12:17

This method converts any String to MD5 encrypted Strings.

	/*
	Input: STRING -- something like "myplainpassword"
	Output: MD5 STRING -- something like "79054025255fb1a26e4bc422aef54eb4"
	*/
	public static String convertToMd5(final String inputString) throws UnsupportedEncodingException {
	StringBuffer sb = new StringBuffer();
	try {
	final java.security.MessageDigest md = java.security.MessageDigest.getInstance("MD5");
	final byte[] array = md.digest(md5.getBytes("UTF-8"));
	for (int i = 0; i < array.length; ++i) {

openrijal / copy_of_range.java

Created May 1, 2013 12:21

Implementation of Arrays.copyOfRange() in terms of System.arraycopy() for compatibility in older Android versions.

	public byte[] copyOfRange(byte[] from, int start, int end){
	int length = end - start;
	byte[] result = new byte[length];
	System.arraycopy(from, start, result, 0, length);
	return result;
	}

openrijal / PasswordValidator.java

Created May 1, 2013 12:24

Java Class for verifying minimum password standard.

	public class PasswordValidator {

	// For character determinations
	private static final int CHAR_LOWER_A = 'a';
	private static final int CHAR_LOWER_Z = 'z';
	private static final int CHAR_UPPER_A = 'A';
	private static final int CHAR_UPPER_Z = 'Z';
	private static final int CHAR_NUMERIC_ZERO = '0';
	private static final int CHAR_NUMERIC_NINE = '9';

openrijal / gist:8120686

Created December 25, 2013 06:30

BASE_URL for Django from A BASE_URL Template Variable in Django http://www.micahcarrick.com/base-url-in-django.html via @MicahCarrick

	context_processors.py

	def baseurl(request):
	"""
	Return a BASE_URL template context for the current request.
	"""
	if request.is_secure():
	scheme = 'https://'
	else:
	scheme = 'http://'

openrijal / webhost_bkup

Created February 8, 2014 15:22

This bash script is to be run from local machine and it copies remote web files and database to local folder.

	# Assumptions
	#########################
	# remote_host: example.com
	# remote_user: johndoe
	# db_user: mydbuser
	# db_pass: mydbpass
	# db_name: mydbname

	# to dump mysql database in the remote system from local system
	ssh [email protected] 'mysqldump -u mydbuser --password=mydbpass mydbname > /destination/path/dump_filename.sql'

openrijal / pgsql specific

Created July 7, 2015 13:08

Django Related

	# to import data from csv to table

	\copy <table_name> from '/path/to/csv/filename.csv' DELIMITERS ',' CSV;

	# to increase the auto_increment after import

	ALTER SEQUENCE tblName_id_seq RESTART WITH <number>;

openrijal / get_prev_next_items_iterable.py

Last active August 29, 2015 14:26

Get Previous and Next items in a forloop in Python

	'''
	source: http://stackoverflow.com/a/1012089/1777024
	'''

	from itertools import tee, islice, chain, izip # official documentation https://docs.python.org/2/library/itertools.html

	def prev_and_next(my_iterable):
	prevs, items, nexts = tee(my_iterable, 3)
	prevs = chain([None], prevs)
	nexts = chain(islice(nexts, 1, None), [None])

Nitesh Rijal openrijal