how to remove www from domain name and enforce https? - .htaccess

Question

I wan to achieve two things
remove www from domain name
enforce https
i.e.
http:// www.example.org should be redirect to https://example.org
https:// www.example.org should be redirect to https://example.org
UPDATE:
I am currently using following .htaccess rule
<IfModule mod_rewrite.c>
RewriteCond %{HTTPS} !=on
RewriteCond %{HTTP_HOST} ^www\.(.+)$ [NC]
RewriteRule ^ https://%1%{REQUEST_URI} [R=301,L]
</IfModule>
This rule does remove the www from url if present, I redirects the user to https. This happens only when I have www in url. If I access my site with http://exampl.org it doesn't redirect it to https. How can I achieve both?
1) remove www from url
2) enforece https
Here is my htaccess file, I have been trying the mentioned answers but doesn't seems to be working
# ----------------------------------------------------------------------
# Better website experience for IE users
# ----------------------------------------------------------------------
# Force the latest IE version, in various cases when it may fall back to IE7 mode
# github.com/rails/rails/commit/123eb25#commitcomment-118920
# Use ChromeFrame if it's installed for a better experience for the poor IE folk
<IfModule mod_headers.c>
Header set X-UA-Compatible "IE=Edge,chrome=1"
# mod_headers can't match by content-type, but we don't want to send this header on *everything*...
<FilesMatch "\.(js|css|gif|png|jpe?g|pdf|xml|oga|ogg|m4a|ogv|mp4|m4v|webm|svg|svgz|eot|ttf|otf|woff|ico|webp|appcache|manifest|htc|crx|oex|xpi|safariextz|vcf)$" >
Header unset X-UA-Compatible
</FilesMatch>
</IfModule>
# ----------------------------------------------------------------------
# CORS-enabled images (#crossorigin)
# ----------------------------------------------------------------------
# Send CORS headers if browsers request them; enabled by default for images.
# developer.mozilla.org/en/CORS_Enabled_Image
# blog.chromium.org/2011/07/using-cross-domain-images-in-webgl-and.html
# hacks.mozilla.org/2011/11/using-cors-to-load-webgl-textures-from-cross-domain-images/
# wiki.mozilla.org/Security/Reviews/crossoriginAttribute
<IfModule mod_setenvif.c>
<IfModule mod_headers.c>
# mod_headers, y u no match by Content-Type?!
<FilesMatch "\.(gif|png|jpe?g|svg|svgz|ico|webp)$">
SetEnvIf Origin ":" IS_CORS
Header set Access-Control-Allow-Origin "*" env=IS_CORS
</FilesMatch>
</IfModule>
</IfModule>
# ----------------------------------------------------------------------
# Webfont access
# ----------------------------------------------------------------------
# Allow access from all domains for webfonts.
# Alternatively you could only whitelist your
# subdomains like "subdomain.example.com".
<IfModule mod_headers.c>
<FilesMatch "\.(ttf|ttc|otf|eot|woff|font.css)$">
Header set Access-Control-Allow-Origin "*"
</FilesMatch>
</IfModule>
# ----------------------------------------------------------------------
# Proper MIME type for all files
# ----------------------------------------------------------------------
# JavaScript
# Normalize to standard type (it's sniffed in IE anyways)
# tools.ietf.org/html/rfc4329#section-7.2
AddType application/javascript js jsonp
AddType application/json json
# Audio
AddType audio/ogg oga ogg
AddType audio/mp4 m4a f4a f4b
# Video
AddType video/ogg ogv
AddType video/mp4 mp4 m4v f4v f4p
AddType video/webm webm
AddType video/x-flv flv
# SVG
# Required for svg webfonts on iPad
# twitter.com/FontSquirrel/status/14855840545
AddType image/svg+xml svg svgz
AddEncoding gzip svgz
# Webfonts
AddType application/vnd.ms-fontobject eot
AddType application/x-font-ttf ttf ttc
AddType font/opentype otf
AddType application/x-font-woff woff
# Assorted types
AddType image/x-icon ico
AddType image/webp webp
AddType text/cache-manifest appcache manifest
AddType text/x-component htc
AddType application/xml rss atom xml rdf
AddType application/x-chrome-extension crx
AddType application/x-opera-extension oex
AddType application/x-xpinstall xpi
AddType application/octet-stream safariextz
AddType application/x-web-app-manifest+json webapp
AddType text/x-vcard vcf
AddType application/x-shockwave-flash swf
AddType text/vtt vtt
# ----------------------------------------------------------------------
# Gzip compression
# ----------------------------------------------------------------------
<IfModule mod_deflate.c>
# Force deflate for mangled headers developer.yahoo.com/blogs/ydn/posts/2010/12/pushing-beyond-gzipping/
<IfModule mod_setenvif.c>
<IfModule mod_headers.c>
SetEnvIfNoCase ^(Accept-EncodXng|X-cept-Encoding|X{15}|~{15}|-{15})$ ^((gzip|deflate)\s*,?\s*)+|[X~-]{4,13}$ HAVE_Accept-Encoding
RequestHeader append Accept-Encoding "gzip,deflate" env=HAVE_Accept-Encoding
</IfModule>
</IfModule>
# Compress all output labeled with one of the following MIME-types
<IfModule mod_filter.c>
AddOutputFilterByType DEFLATE application/atom+xml \
application/javascript \
application/json \
application/rss+xml \
application/vnd.ms-fontobject \
application/x-font-ttf \
application/xhtml+xml \
application/xml \
font/opentype \
image/svg+xml \
image/x-icon \
text/css \
text/html \
text/plain \
text/x-component \
text/xml
</IfModule>
</IfModule>
# ----------------------------------------------------------------------
# Expires headers (for better cache control)
# ----------------------------------------------------------------------
# These are pretty far-future expires headers.
# They assume you control versioning with filename-based cache busting
# Additionally, consider that outdated proxies may miscache
# www.stevesouders.com/blog/2008/08/23/revving-filenames-dont-use-querystring/
# If you don't use filenames to version, lower the CSS and JS to something like
# "access plus 1 week".
<IfModule mod_expires.c>
ExpiresActive on
# Perhaps better to whitelist expires rules? Perhaps.
ExpiresDefault "access plus 1 month"
# cache.appcache needs re-requests in FF 3.6 (thanks Remy ~Introducing HTML5)
ExpiresByType text/cache-manifest "access plus 0 seconds"
# Your document html
ExpiresByType text/html "access plus 0 seconds"
# Data
ExpiresByType text/xml "access plus 0 seconds"
ExpiresByType application/xml "access plus 0 seconds"
ExpiresByType application/json "access plus 0 seconds"
# Feed
ExpiresByType application/rss+xml "access plus 1 hour"
ExpiresByType application/atom+xml "access plus 1 hour"
# Favicon (cannot be renamed)
ExpiresByType image/x-icon "access plus 1 week"
# Media: images, video, audio
ExpiresByType image/gif "access plus 1 month"
ExpiresByType image/png "access plus 1 month"
ExpiresByType image/jpeg "access plus 1 month"
ExpiresByType video/ogg "access plus 1 month"
ExpiresByType audio/ogg "access plus 1 month"
ExpiresByType video/mp4 "access plus 1 month"
ExpiresByType video/webm "access plus 1 month"
# HTC files (css3pie)
ExpiresByType text/x-component "access plus 1 month"
# Webfonts
ExpiresByType application/x-font-ttf "access plus 1 month"
ExpiresByType font/opentype "access plus 1 month"
ExpiresByType application/x-font-woff "access plus 1 month"
ExpiresByType image/svg+xml "access plus 1 month"
ExpiresByType application/vnd.ms-fontobject "access plus 1 month"
# CSS and JavaScript
ExpiresByType text/css "access plus 1 year"
ExpiresByType application/javascript "access plus 1 year"
</IfModule>
# ----------------------------------------------------------------------
# ETag removal
# ----------------------------------------------------------------------
# FileETag None is not enough for every server.
<IfModule mod_headers.c>
Header unset ETag
</IfModule>
# Since we're sending far-future expires, we don't need ETags for
# static content.
# developer.yahoo.com/performance/rules.html#etags
FileETag None
# ----------------------------------------------------------------------
# Start rewrite engine
# ----------------------------------------------------------------------
# Turning on the rewrite engine is necessary for the following rules and
# features. FollowSymLinks must be enabled for this to work.
# Some cloud hosting services require RewriteBase to be set: goo.gl/HOcPN
# If using the h5bp in a subdirectory, use `RewriteBase /foo` instead where
# 'foo' is your directory.
# If your web host doesn't allow the FollowSymlinks option, you may need to
# comment it out and use `Options +SymLinksIfOwnerMatch`, but be aware of the
# performance impact: goo.gl/Mluzd
<IfModule mod_rewrite.c>
Options +FollowSymlinks
# Options +SymLinksIfOwnerMatch
RewriteEngine On
# RewriteBase /
</IfModule>
# ----------------------------------------------------------------------
# Suppress or force the "www." at the beginning of URLs
# ----------------------------------------------------------------------
# The same content should never be available under two different URLs -
# especially not with and without "www." at the beginning, since this can cause
# SEO problems (duplicate content). That's why you should choose one of the
# alternatives and redirect the other one.
# By default option 1 (no "www.") is activated.
# no-www.org/faq.php?q=class_b
# If you'd prefer to use option 2, just comment out all option 1 lines
# and uncomment option 2.
# IMPORTANT: NEVER USE BOTH RULES AT THE SAME TIME!
# ----------------------------------------------------------------------
# Option 1:
# Rewrite "www.example.com -> example.com".
#<IfModule mod_rewrite.c>
# RewriteCond %{HTTPS} !=on
# RewriteCond %{HTTP_HOST} ^www\.(.+)$ [NC]
# RewriteRule ^ http://%1%{REQUEST_URI} [R=301,L]
#</IfModule>
<IfModule mod_rewrite.c>
RewriteEngine On
#RewriteCond %{HTTPS} off [OR]
#RewriteCond %{HTTP:X-Forwarded-SSL} off [OR]
#RewriteCond %{HTTP_HOST} ^www\.
#RewriteCond %{HTTP_HOST} ^(?:www\.)?(.+)$
#RewriteRule ^ https://%1%{REQUEST_URI} [NE, L, R]
#RewriteCond %{SERVER_PORT} ^80$
#RewriteRule ^(.*)$ https://%{SERVER_NAME} %{REQUEST_URI} [R=301,L]
RewriteCond %{HTTPS} off [OR]
RewriteCond %{HTTP_HOST} ^www\.
RewriteCond %{HTTP_HOST} ^(?:www\.)?(.+)$
RewriteRule ^ https://%1%{REQUEST_URI} [NE,L,R]
#RewriteCond %{HTTP_HOST} ^(^www\.)
#RewriteRule (.*) https://%{HTTP_HOST}%{REQUEST_URI}
#RewriteRule ^ http://%1%{REQUEST_URI} [R=301,L]
</IfModule>
#<IfModule mod_rewrite.c>
# RewriteEngine On
# RewriteCond %{HTTP_HOST} ^www\.(.+)$ [NC]
# RewriteRule ^ https://%1%{REQUEST_URI} [R=301,L]
# RewriteCond %{HTTPS} !=on
# RewriteCond %{SERVER_PORT} 80
# RewriteRule ^(.*)$ https://%{HTTP_HOST}/$1 [R,L]
#</IfModule>
# ----------------------------------------------------------------------
# Prevent 404 errors for non-existing redirected folders
# ----------------------------------------------------------------------
# without -MultiViews, Apache will give a 404 for a rewrite if a folder of the
# same name does not exist.
# webmasterworld.com/apache/3808792.htm
Options -MultiViews
# ----------------------------------------------------------------------
# Custom 404 page
# ----------------------------------------------------------------------
# You can add custom pages to handle 500 or 403 pretty easily, if you like.
# If you are hosting your site in subdirectory, adjust this accordingly
# e.g. ErrorDocument 404 /subdir/404.html
ErrorDocument 404 /404.html
# ----------------------------------------------------------------------
# UTF-8 encoding
# ----------------------------------------------------------------------
# Use UTF-8 encoding for anything served text/plain or text/html
AddDefaultCharset utf-8
# Force UTF-8 for a number of file formats
AddCharset utf-8 .atom .css .js .json .rss .vtt .xml
# ----------------------------------------------------------------------
# A little more security
# ----------------------------------------------------------------------
# To avoid displaying the exact version number of Apache being used, add the
# following to httpd.conf (it will not work in .htaccess):
# ServerTokens Prod
# "-Indexes" will have Apache block users from browsing folders without a
# default document Usually you should leave this activated, because you
# shouldn't allow everybody to surf through every folder on your server (which
# includes rather private places like CMS system folders).
<IfModule mod_autoindex.c>
Options -Indexes
</IfModule>
# Block access to "hidden" directories or files whose names begin with a
# period. This includes directories used by version control systems such as
# Subversion or Git.
<IfModule mod_rewrite.c>
RewriteCond %{SCRIPT_FILENAME} -d [OR]
RewriteCond %{SCRIPT_FILENAME} -f
RewriteRule "(^|/)\." - [F]
</IfModule>
# Block access to backup and source files. These files may be left by some
# text/html editors and pose a great security danger, when anyone can access
# them.
<FilesMatch "(\.(bak|config|sql|fla|psd|ini|log|sh|inc|swp|dist)|~)$">
Order allow,deny
Deny from all
Satisfy All
</FilesMatch>
# Increase cookie security
<IfModule php5_module>
php_value session.cookie_httponly true
</IfModule>
<IfModule mod_rewrite.c>
RewriteEngine On
#<IfModule mod_vhost_alias.c>
# RewriteBase /
#</IfModule>
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^(.*)$ app.php [QSA,L]
</IfModule>

Answer 1

try this:
RewriteCond %{HTTPS} !^on [OR]
Rewritecond %{HTTP_HOST} !^example\.com
RewriteRule ^(.*)$ https://example.com/$1 [R=301,L]

Answer 2

To remove www and to enforce https you can use the following :
RewriteCond %{HTTPS} off [OR]
RewriteCond %{HTTP_HOST} ^www\.
RewriteCond %{HTTP_HOST} ^(?:www\.)?(.+)$
RewriteRule ^ https://%1%{REQUEST_URI} [NE,L,R]
Option 2, on apache 2.4 you can also use this :
RewriteEngine on
RewriteCond %{REQUEST_SCHEME}#%{HTTP_HOST} ^http#(?:www\.)?(.+)$
RewriteRule ^ https://%1%{REQUEST_URI} [NE,L,R]

Answer 3

Finally I had this working with following htaccess rules, as mentioned in my comment the rules posted in other answers were not working because of the elastic load balancer in place in my environment. All the HTTPS requests going through the ELB will have the value of X-FORWARDED-PROTO equal to “HTTPS“.
RewriteEngine on
RewriteCond %{HTTP_HOST} www.(.+) [OR,NC]
RewriteCond %{HTTP:X-Forwarded-Proto} !https [NC]
RewriteRule ^/?(.*) http s://mydomain.com%{REQUEST_URI} [L,R=301]