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PHP parametric + bash script combination

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# 1  
Old 04-03-2017
PHP parametric + bash script combination
Hello,

I have a simple bash script and I manually run this script to put a file into related directory in apache normally. I need to run it in php with parameter.
My target is to get a download link by running below script but I do not know anything about php. Here is my bash script:

run.sh
Code:
#!/bin/bash
cd /root
u=$a
p=$b
mkdir /var/www/html/$u
mkdir /var/www/html/$u/$p
cp index.php /var/www/html/$u/index.php
cp index.php /var/www/html/$u/$p/index.php
cp list.txt /var/www/html/$u/$p/list.txt
#???
#???
#???
echo "your download link is" http://public_ip/download.php?user=$u&pass=$p&file=list.txt"

If that folder name $u, and $p matches it will allow the user to download list.txt file.

It will redirect the user to:
Code:
http://public_ip/$u/$p/list.txt

After installing php, I will give permissions for user to run bash script
My question is: what should be the php file?
I'd appreciate if you could lead me right direction or give an idea about the solution.

Thanks in advance
Boris
# 2  
Old 04-03-2017
Need to run it with what parameter?
# 3  
Old 04-05-2017
Hello Corona688,

For example when the user enters below link,

Code:
http://public_ip/download.php?user=user1&pass=file1&file=list.txt

Browser should be redirected to:

Code:
http://public_ip/user1/file1/list.txt


OR:


when below url is requested:

Code:
http://public_ip/download.php?user=mike&pass=mike&file=list455.txt

redirect to:

Code:
http://public_ip/mike/mike/list455.txt


Thanks in advance
Boris
# 4  
Old 04-05-2017
OK:

Code:
<?php

        $p=array("user","pass","file"); // List of arguments we want to check.

        // A very handy loop PHP has.  It will loop three times, with 
        // $x set to "user", "pass", and "file" in turn.
        foreach($x in $p)
        {
                // Check if they exist in the global array $_GET
                if(!array_key_exists($x, $_GET)) 
                {
                        printf("<h2>Missing Argument %s</h2>\n", $x);
                        exit(0);
                }

                // Reject forward slashes in all passwords, names, and files
                if(strchr($_GET[$x], "/")) 
                {
                        printf("<h2>Injection Attempt in %s</h2>\n", $x);
                        exit(0);
                }
        }

        header(sprintf("Location:  http://public_ip/%s/%s/%s", $_GET["user"], $_GET["pass"], $_GET["file"]));

?>

I don't seriously recommend this password protection scheme, of course. It's just something to start playing with.
This User Gave Thanks to Corona688 For This Post:
baris35
# 5  
Old 07-06-2017
Hello,
Stucked in above php code
I've manually created test folder and test2 subdirectory under /var/www/html
test.txt exists at /var/www/html/test/test2/test.txt
Then I ve run below url in Chrome but gives error 500, "this page is not working"

URL:
Code:
http://my_public_ip/test.php?user=te...&file=test.txt

My test.php file:

Code:
<html>
 <head>
  <title>PHP Test</title>
 </head>
 <body>
 <?php
        $p=array("user","pass","file"); // List of arguments we want to check.

        // A very handy loop PHP has.  It will loop three times, with 
        // $x set to "user", "pass", and "file" in turn.
        foreach($x in $p)
        {
                // Check if they exist in the global array $_GET
                if(!array_key_exists($x, $_GET)) 
                {
                        printf("<h2>Missing Argument %s</h2>\n", $x);
                        exit(0);
                }

                // Reject forward slashes in all passwords, names, and files
                if(strchr($_GET[$x], "/")) 
                {
                        printf("<h2>Injection Attempt in %s</h2>\n", $x);
                        exit(0);
                }
        }

        header(sprintf("Location:  http://my_public_ip/%s/%s/%s", $_GET["user"], $_GET["pass"], $_GET["file"]));
?>
 </body>
</html>

I'd appreciate if you could let me know what I am missing

Thanks
Boris
# 6  
Old 07-06-2017
Welcome back.

I made some typos in that.
Code:
<html>
 <head>
  <title>PHP Test</title>
 </head>
 <body>
 <?php
        $x=array("user","pass","file"); // List of arguments we want to check.

        // A very handy loop PHP has.  It will loop three times, with
        // $p set to "user", "pass", and "file" in turn.
        foreach($x as $p)
        {
                // Check if they exist in the global array $_GET
                if(!array_key_exists($p, $_GET))
                {
                        printf("<h2>Missing Argument %s</h2>\n", $p);
                        exit(0);
                }

                // Reject forward slashes in all passwords, names, and files
                if(strchr($_GET[$p], "/"))
                {
                        printf("<h2>Injection Attempt in %s</h2>\n", $p);
                        exit(0);
                }
        }

        header(sprintf("Location:  http://my_public_ip/%s/%s/%s", $_GET["user"], $_GET["pass"], $_GET["file"]));

?>
 </body>
</html>

Last edited by Corona688; 07-06-2017 at 12:52 PM..
This User Gave Thanks to Corona688 For This Post:
baris35
# 7  
Old 07-06-2017
Hello Corona,
Many thanks
Works fine.

Kind regards
Boris
This User Gave Thanks to baris35 For This Post:
Corona688
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