Nginx - basic http authentication on PHP-script
I added a PHP-Script that serves as "cgi-bin",
Configuration:
location ~^/cgi-bin/.*\.(cgi|pl|py|rb) {
gzip off;
fastcgi_pass 127.0.0.1:9000;
fastcgi_index cgi-bin.php;
fastcgi_param SCRIPT_FILENAME /etc/nginx/cgi-bin.php;
fastcgi_param SCRIPT_NAME /cgi-bin/cgi-bin.php;
fastcgi_param X_SCRIPT_FILENAME /usr/lib/$fastcgi_script_name;
fastcgi_param X_SCRIPT_NAME $fastcgi_script_name;
fastcgi_param QUERY_STRING $query_string;
fastcgi_param REQUEST_METHOD $request_method;
fastcgi_param CONTENT_TYPE $content_type;
fastcgi_param CONTENT_LENGTH $content_length;
fastcgi_param GATEWAY_INTERFACE CGI/1.1;
fastcgi_param SERVER_SOFTWARE nginx;
fastcgi_param REQUEST_URI $request_uri;
fastcgi_param DOCUMENT_URI $document_uri;
fastcgi_param DOCUMENT_ROOT $document_root;
fastcgi_param SERVER_PROTOCOL $server_protocol;
fastcgi_param REMOTE_ADDR $remote_addr;
fastcgi_param REMOTE_PORT $remote_port;
fastcgi_param SERVER_ADDR $server_addr;
fastcgi_param SERVER_PORT $server_port;
fastcgi_param SERVER_NAME $server_name;
fastcgi_param REMOTE_USER $remote_user;
}
PHP-Script:
<?php
$descriptorspec = array(
0 => array("pipe", "r"), // stdin is a pipe that the child will read from
1 => array("pipe", "w"), // stdout is a pipe that the child will write to
2 => array("pipe", "w") // stderr is a file to write to
);
$newenv = $_SERVER;
$newenv["SCRIPT_FILENAME"] = $_SERVER["X_SCRIPT_FILENAME"];
$newenv["SCRIPT_NAME"] = $_SERVER["X_SCRIPT_NAME"];
if (is_executable($_SERVER["X_SCRIPT_FILENAME"])) {
$process = proc_open($_SERVER["X_SCRIPT_FILENAME"], $descriptorspec, $pipes, NULL, $newenv);
if (is_resource($process)) {
fclose($pipes[0]);
$head = fgets($pipes[1]);
while (strcmp($head, "\n")) {
header($head);
$head = fgets($pipes[1]);
}
fpassthru($pipes[1]);
fclose($pipes[1]);
fclose($pipes[2]);
$return_value = proc_close($process);
}
else {
header("Status: 500 Internal Server Error");
echo("Internal Server Error");
}
}
else {
header("Status: 404 Page Not Found");
echo("Page Not Found");
}
?>
The problem with it thought is that I cannot add basic authentication.
As soon as I enable it for location ~/cgi-bin
it gives me a 404 error when I try to look it up.
How can I solve this?
I thought about restricting access to only my second server where I then add basic authentication over a proxy, but there must be a simpler solution.
Sorry for the bad title, I couldn't think of a better one.
Edit: My solution, thanks to WerkkreWs answer, looks like this in the end:
cgi-bin.conf:
location ~^/.*\.(cgi|pl|p<|rb) {
[...]
}
vhost.conf:
server {
[...]
location ~^/cgi-bin {
auth_basic "Restricted";
auth_basic_user_file htusers;
include cgi-bin.conf;
}
[...]
}
This may be insecure since cgi-bin.conf could be accidentally included in the server-tag (and thus enabling every client to execute scripts in every location), but since I only use it once I will stick with this solution.
Solution 1:
I believe your question might already be answered here, but I will try to describe what I think the problem is.
First of all, as an aside, you should consider putting all of your fastcgi parameters in a configurastion file accessible to nginx for ease of use (e.g. /etc/nginx/conf.d/fastcgi_params).
Second, depending on how you set up the location block for the auth vs the php section, you will likely need to instruct nginx on how to deal with php files a second time in the protected location, or make sure the auth_basic directives are in the same location block as the one you pasted above, for example (taken from the aforementioned post):
server {
listen 80;
server_name my-awesome-php.site;
root /path/to/root;
# Normal files (blank location is OK, just means serve from root)
location / { }
# PHP for normal stuff
location ~ \.php$ {
include fastcgi.conf;
fastcgi_pass 127.0.0.1:9000;
}
# The protected location
location /protected {
auth_basic "Give me codes.";
auth_basic_user_file /path/to/.htpasswd;
location ~ \.php$ {
include fastcgi.conf;
fastcgi_pass 127.0.0.1:9000;
}
}
}
On my personal installation of nginx I am using php-fpm and my php scripts are not limited to cgi-bin so my configuration is quite different but it might offer you some additional insights. I have basic authentication working as I imagine you are expecting it to although in the below example an entire vhost is under basic auth and not just a folder:
fastcgi_params
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
fastcgi_param QUERY_STRING $query_string;
fastcgi_param REQUEST_METHOD $request_method;
fastcgi_param CONTENT_TYPE $content_type;
fastcgi_param CONTENT_LENGTH $content_length;
fastcgi_param SCRIPT_NAME $fastcgi_script_name;
fastcgi_param REQUEST_URI $request_uri;
fastcgi_param DOCUMENT_URI $document_uri;
fastcgi_param DOCUMENT_ROOT $document_root;
fastcgi_param SERVER_PROTOCOL $server_protocol;
fastcgi_param GATEWAY_INTERFACE CGI/1.1;
fastcgi_param SERVER_SOFTWARE nginx/$nginx_version;
fastcgi_param REMOTE_ADDR $remote_addr;
fastcgi_param REMOTE_PORT $remote_port;
fastcgi_param SERVER_ADDR $server_addr;
fastcgi_param SERVER_PORT $server_port;
fastcgi_param SERVER_NAME $server_name;
# PHP only, required if PHP was built with --enable-force-cgi-redirect
fastcgi_param REDIRECT_STATUS 200;
Example for server/host based auth (irrelevant sections removed)
server {
server_name dev.foo.com;
error_log /app/www/dev.foo.com/logs/error.log error;
root /app/www/dev.foo.com/htdocs;
index index.php index.html;
auth_basic "Secret Files";
auth_basic_user_file /app/www/dev.foo.com/conf/htpasswd;
location ~ \.php$ {
include /etc/nginx/fastcgi_params;
fastcgi_index index.php;
fastcgi_split_path_info ^(.+\.php)(.*)$;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
fastcgi_pass unix:/var/run/foo.com.sock;
}
location ~ /\.ht {
deny all;
}
}
Example for location based auth (irrelevant sections removed)
server {
server_name foo.com;
error_log /app/www/foo.com/logs/error.log error;
root /app/www/foo.com/htdocs;
index index.php index.html;
location /protected {
auth_basic "Secret Files";
auth_basic_user_file /app/www/foo.com/conf/htpasswd;
location ~ \.php$ {
include /etc/nginx/fastcgi_params;
fastcgi_index index.php;
fastcgi_split_path_info ^(.+\.php)(.*)$;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
fastcgi_pass unix:/var/run/foo.com.sock;
}
}
location ~ \.php$ {
include /etc/nginx/fastcgi_params;
fastcgi_index index.php;
fastcgi_split_path_info ^(.+\.php)(.*)$;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
fastcgi_pass unix:/var/run/foo.com.sock;
}
location ~ /\.ht {
deny all;
}
}