Difference between revisions of "Lighttpd"

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* If not, check the file ''/var/log/lighttpd-error.log'' on your board
 
* If not, check the file ''/var/log/lighttpd-error.log'' on your board
  
[[Image:Lighttpd_tuto.jpg]]
+
[[Image:Lighttpd_tuto.png]]
  
 
== Working with cgi ==
 
== Working with cgi ==

Revision as of 16:35, 20 April 2016

How-to install and configure the Lighttpd Web server on your Armadeus board.

Lighttpd.png


Installation

  • Launch Buildroot's configuration:
 $ make menuconfig
  • Select:
...
Target packages  --->
        ...
    [*] Networking applications  --->
            ...
            [*] lighttpd
            [ ]   openssl support
            [ ]   zlib support
            [ ]   bzip2 support
            [ ]   pcre support
            [ ]   webdav support
  • Save the configuration
  • Then build the binaries and the default filesystem:
 $ make

Configuration

Generalities

To apply a permanent configuration, be sure not to change anything on the board filesystem: that would be erased the next time you reflash the rootfs.

Instead, do all changes on the filesystem "image" located on your Host PC in buildroot/output/target/.

The Lighttpd configuration file is located in /etc/lighttpd/lighttpd.conf on the board; this means that to permanently change the configuration, you need to edit the file buildroot/output/target//etc/lighttpd/lighttpd.conf on the Host.

var.log_root    = "/var/log"
var.server_root = "/var/www"
var.state_dir   = "/var/run"
var.home_dir    = "/var/lib/lighttpd"
var.conf_dir    = "/etc/lighttpd"

server.document-root = "/var/www/"
server.errorlog = log_root + "/lighttpd-error.log"
server.port = 80  

mimetype.assign = (
  ".html" => "text/html",
  ".txt" => "text/plain",
  ".jpg" => "image/jpeg",
  ".png" => "image/png"
)

There is an envt variable to easily access the target directory:

 $ make shell_env && source armadeus_env.sh

Then the directory can be accessed with $ARMADEUS_ROOTFS_DIR.

Create a Dummy page

  • By default, server.document-root is set to /var/www, so let's add a dummy file here to test our configuration:
 $ mkdir -p $ARMADEUS_ROOTFS_DIR/var/www
 $ vim $ARMADEUS_ROOTFS_DIR/var/www/index.html
  • And fill the file with:
<html>
    <head>
        <title> Welcome on an Armadeus Board </title>
    </head>
    <body>
        <nowiki><h1> Welcome to your APF board ! :-) </h1></nowiki>
    </body>
</html>

Test the result

  • Create the final rootfs:
$ make
  • Then update the rootfs on your board. Reboot it, and lighttpd should start automagically:
 Starting lighttpd: OK
  • To access your web page, use a browser:
http://<your board's IP Address>/
  • You should see the page !
  • If not, check the file /var/log/lighttpd-error.log on your board

Lighttpd tuto.png

Working with cgi

# vi /etc/lighttpd/conf.d/cgi.conf
server.modules += ( "mod_cgi" )

cgi.assign                 = ( ".pl"  => "/usr/bin/perl",
                               ".cgi" => "/bin/sh",
                               ".sh"  => "/bin/sh",
                               ".py"  => "/usr/bin/python" )

index-file.names           += ( "index.pl",   "default.pl",
                               "index.py",   "default.py",
                               "index.php",  "default.php" )
  • Then add these lines in lighttpd.conf:

...
##
## CGI
##
include "conf.d/cgi.conf"

mimetype.assign = (
...
  • First, check the lighttpd.conf file. Once more, you should use the one located on your host before changing anything.
$ vi $ARMADEUS_ROOTFS_DIR/etc/lighttpd.conf
  • Be sure to have an uncommented line like this:
ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/
  • Now, let's write a dummy cgi:
$ mkdir $ARMADEUS_ROOTFS_DIR/usr/lib/cgi-bin
$ vim $ARMADEUS_ROOTFS_DIR/usr/lib/cgi-bin/get_ipconfig.sh
  • And add the following :
#!/bin/sh
echo -e "Content-type: text/html\r\n\r\n";
echo -e `/sbin/ifconfig  eth0 | grep 'inet addr'`;

The script have to be executable:

$ chmod a+x $ARMADEUS_ROOTFS_DIR/usr/lib/cgi-bin/get_ipconfig.sh
  • Then change your index.html page to add a link to the cgi:
$ vi $ARMADEUS_ROOTFS_DIR/var/www/index.html
<html>
    <head>
        <title> Welcome on the Armadeus Board </title>
    </head>
    <body>
        <h1> Welcome on the Armadeus Board </h1>
        <br> <br>
        <a href=http://<Your board IP Address>/cgi-bin/get_ipconfig.sh> Get the board ip config </a>
        <br>
    </body>
</html>
  • Create the new rootfs:
$ make

You can now access to the new web page and click on the cgi link !

Links