apache - "file_get_contents" works only with port 80?

petruha1983 · 02-03-2011, 02:35 AM

Hi there,
I have a web site on port 80.
My apache works on port 8080.
i configured cache_module in apache.
so that the clients will enter the web site threw the apache and apache will gather all the cache of the web site in order to speed up the service.
when i point apache to take content from port 80 - it works just fine.
when i change it from port 80 to any other port, it gives an error:
"failed to open stream: Permission denied in /var/www/web/cache/index.php on line 44"

it works fine with port 80. so how come not other port?

i will be glad to hear any suggestion.

frankbell · 02-03-2011, 10:16 PM

What is on line 44 of the file named in the error message?

petruha1983 · 02-04-2011, 11:57 AM

this is what i have added in the end of httpd.conf:

####################### Proxy config start #########################

<Directory />
RewriteEngine on
RewriteBase /
# Rewrite URLs of the form 'x' to the form 'index.php?q=x'.
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_URI} !=/favicon.ico
RewriteRule ^(.*)?(.*)$ cache/index.php?folder=$1$2 [L,QSA]
</Directory>

####################### Cache config start #########################

##LoadModule cache_module modules/mod_cache.so

<IfModule cache_module>

##gfhfhfgdgfh

### LoadModule disk_cache_module modules/mod_disk_cache.so
CacheIgnoreCacheControl On
CacheIgnoreNoLastMod On
CacheDefaultExpire 86400
# If you want to use mod_disk_cache instead of mod_mem_cache,
# uncomment the line above and comment out the LoadModule line below.

########### <IfModule mod_disk_cache.c>
########### CacheEnable disk /
########### CacheRoot "/var/cache/mod_proxy"
########### </IfModule>
## disk_cache_module
<IfModule mod_disk_cache.c>

##CacheRoot c:/cacheroot
##CacheRoot "/var/spool/httpd/cache"
##CacheRoot /cache2/

CacheRoot "/var/cache/mod_proxy"
CacheEnable disk /cache/
#CacheSize 5000000

#CacheExpiryCheck Off
#####CacheEnable disk /plugins/cache/
##CacheDirLevels 5
##CacheDirLength 3
</IfModule>

##LoadModule mem_cache_module modules/mod_mem_cache.so
######## <IfModule mod_mem_cache_xxx>
######## ##CacheEnable mem /
######## CacheEnable mem /plugins/
######## MCacheSize 4096
######## MCacheMaxObjectCount 100
######## MCacheMinObjectSize 1
######## MCacheMaxObjectSize 2048
######## </IfModule>

# When acting as a proxy, don't cache the list of security updates
##CacheDisable http://security.update.server/update-list/
</IfModule>

####################### cache config ends #########################

and that is my index.php that rewrites the request:
<?

//phpinfo();die;

/* show error in case you get a blank page*/
ini_set("display_errors","2");
ERROR_REPORTING(E_ALL);
/* show errors end*/

/* Code for Cache: start (Important for Cache) */
header( 'Expires: Mon, 26 Jul 2020 05:00:00 GMT' );
//header( 'Last-Modified: Mon, 02 Feb 2000 13:56:55 GMT' );
header( 'Last-Modified: Mon, 02 Feb 2000 13:56:55 GMT' );
header( 'Cache-Control: public' );
header( 'Pragma: cache' );
/* Code for Cache: ends */

// $server is the parameter for the gis server location (glass fish)
$servers = array();
$servers[] = "http://IP_ADRESS:3080/";
//$servers[] = "http://localhost:8080/";
$server = $servers[array_rand($servers)];

//$server = "http://localhost:8080/";

// Put the query string in $qs
$qs = $_SERVER["QUERY_STRING"];

// $folder: this parameter is coming from apache i.e. http://xyz.com/?QUERY_STRING ->
$folder = $_GET["folder"];

// This line removes var and www and html from $folder
$folder = preg_replace("/var\/www\/web\//","",$folder);

// $new_request will be the call (i.e. in glass fish server) to make
// this is a assamble of the server name + target folder + and query string
$new_request = $server . $folder . "?" . $qs;

// convert the page to an xml result page
header ("content-type: image/jpeg");

// get the new call content and print it
echo file_get_contents ($new_request);

?>
line 44 is the last line

any suggestions to solve my problem?

fhleung · 07-04-2016, 09:31 PM

I did searchED by topic "file_get_contents()" and got this post,
so I would like to append this post, please be understanding...

please simply copy and paste PHP code

Code:

<? php
$text = file_get_contents('http://url.com') ;

// do processing the $text like functions strstr() substr()

echo $text ; output after processing
?>

please simply copy and paste PHP code above.
Questions is: if can code it better? if this secure?
thank you

Doug G · 07-04-2016, 09:42 PM

Also, if your system uses selinux you may need to configure selinux to allow your non-standard http ports.

fhleung · 07-11-2016, 09:06 PM

file_get_contents() is PHP function
in the php script, need to flush() functions too?

php AND apache web server could be a web server , putting .html files .php files inside

would it better?
ob_get_contents() - Return the contents of the output buffer
ob_clean() - Clean (erase) the output buffer
ob_end_flush() - Flush (send) the output buffer and turn off output buffering
ob_end_clean() - Clean (erase) the output buffer and turn off output buffering