I have written simple php script to help me update site contents when the commit is sent to bitbucket. I have following problem with it.
<?php
$repo_dir = '/var/www/vhosts/my_full_path';
$output = shell_exec('cd '.$repo_dir.' && hg --config auth.rc.prefix=https://bitbucket.org/XXXXX --config auth.rc.username=my_username --config auth.rc.password=my_pass pull -u https://bitbucket.org/XXXXXXX &');
echo $output;
?>
When I type it to web browser it doesn't work. The output of script is:
pulling from https://bitbucket.org/XXXXXXXXXXXXXX
but when I try to execute it under console on the server it works like a charm:
php myscript.php
generates following output:
pulling from https://bitbucket.org/XXXX
searching for changes
adding changesets
adding manifests
adding file changes
added 2 changesets with 2 changes to 1 files
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
See the oupt is full and correct! in concole I'm using root user in web browser data-www? Is there any difference in this case?
I have found the solution. I hope it helps someone.
There were two problems:
Permissions to my repo dir
Authentication for user www-data for this repo
The problem occured because web browser doesn't flush warnings and abort messages while executing command shell_exec. If you want to test your script, you have to lgoin to console by SSH (as root for example) then execute script / command as apache user:
sudo -u www-data php /path-to-your-script/script.php
In console you will see all problems which following user generates.
Related
I've been unable to run php scripts that I need to use to start and stop webcam services that run on the local machine with the scripts. I can find nothing in the logs to indicate why the script doesn't' work.
I confess to being severely handicapped regarding PHP, especially server-side scripting.
The environment is Debian Jesse running Nginx with all required SSH and PHP modules installed
I have added www-data to the sudoers file with:
www-data ALL=(ALL) NOPASSWD: /var/www/html/start_webcam.sh
Enabled the $PATH environment for www-data at:
/etc/php5/fpm/pool.d/www.conf
The shell script resides in the .../html directory and runs from the terminal with no issues.
This is the code for both the php and shell scripts:
start_webcam.php:
<?php
echo exec('sudo bash /var/www/html/aspirebox/start_webcam.sh 2>&1, $output');
print_r($output);
?>
The $output and print_r stuff is there because it was the last thing I tried based on a post I found out here somewhere.
start_webcam.sh
#!/bin/bash
service motion start
Thanks in advance to anyone out here that has a clue. After 2 days of wrestling with this, I am sure that I do not.
according to Passing Variables to shell_exec()? you should change your code like this:
<?php
$output = exec('/var/www/html/aspirebox/start_webcam.sh 2>&1 ');
print_r($output);
?>
and let your bash script execute as all (no need to sudo bash):
chmod a+x /var/www/html/aspirebox/start_webcam.sh
Thank you very much - that worked.
I worked through getting the path straight for the directory the shell script runs in, and the correct path to run "service".
All I have now is to figure out why I'm getting "Failed to start motion.service: Access denied"
I've given www-data permission to run the script without a password on sudoers, have to keep digging.
Thanks again!
I have a question that have been asked many time over the web, but none of the solutions help my case.
I need a very simple website with a single button, by which on click, a single shell command is executed to deploy a docker container.
For this I have 3 files all located in /var/www/html/:
1- Depl-Script (a simple Linux file, made executable by chmod +x and chmod 777, and does not have .sh extension, including a single command:
docker run -it -p 8080:8080 surrogate
2- a DepGUI.php
<?php
// $output=shell-exec("/var/www/html/Depl-Script"); //didn't work
$output=shell_exec("./Depl-Script"); //this doesn't work neither
echo $output; //prints 0
$output1=shell_exec("whoami"); //prints www-data
echo $output1;
?>
3- a Main.html, including:
<form action="DepGUI.php">
<input type="submit" value="Open Script">
</form>
Shell-exec doesn't work for running the shell script.
How do I know it doesn't work? I check docker containers, nothing is created.
What solutions I have tried:
1) The shell script (Dep-Script) works fine when I run it from CLI, by root user.
2)Just to make sure, I changed the etc/passwd file, found the line with www-data user and changed it's login shell to /bin/bash, and then by www-data (apache) user, I executed the same shell script, and it works. (I returned the /etc/passwd file to the original shape)
3)I have checked the /etc/php5/apache2/php.ini and /etc/php5/cli/php.ini and the exec, and shell_exec is not disabled.
4) I have checked the shell-exec and exec command with "sh" parameter, it did not work.
Any help/comment is appreciated in advance.
Thanks
Update:
I redirected errors to the output,
$output=shell_exec("./Depl-Script 2>&1");
I noticed the error is related to docker, "The input device is not a TTY" , then I got rid of -t in the docker command in the script (Dep-Script) and the error disappeared. I got a new error related to docker permissions and solved it using following link:
https://techoverflow.net/2017/03/01/solving-docker-permission-denied-while-trying-to-connect-to-the-docker-daemon-socket/
Here is my push.bat file
echo "Hello world!"
cd abhishek3/
call git add .
call git commit -m "sadf"
call heroku accounts:set abhishek84
call git push heroku master
I am able to push to my repository by running push.bat file in cmd
I want to push to my repo from php, tried following snippets but none of them worked for me.
exec("psexec -d push.bat");
Result: PHP page loads indefinitely
$WshShell = new COM("WScript.Shell");
$oExec = $WshShell->Run("cmd /C abhishek3.bat, 0, false);
Result: Page stops loading after a while and nothing works
exec("cmd.exe /c abhishek3.bat")
Result: Page stops loading after a while and nothing works
EDIT:
Tried the following snippet but nothing worked.
exec("hstart.exe /NOCONSOLE \"cmd.exe /c \"abhishek3.bat\"\"");
The above snippet runs successfully when run from cmd but when run from php through exec() didn't worked. Download hstart (Hidden Start Binary)
check the permissions for the web users are correct (It can access the files and execute git)
check the path for git and any environment variables it may need. You may have to set those environment variables in your script and use absolute paths)
check IIS or apache (whichever you are using) is allowed to execute programs in general and bat files (for example if it is apache, you may have to configure httpd.conf or htaccess depending on your configuration)
I have very annoying problem here that I am completely lost on.
Am just trying to run a bash script from a php page.
The bash script is a long one.... so I created a caller.sh which calls the ./mainScript.sh to run in the background in the following:
nohup /bin/bash /home/test/customcoincode/CoinCreationBashFile.sh $coinName $coinNameAbreviation $blockReward $blockSpacing $targetTimespan $totalCoins $seedNode $nameSeedNode $headline >> /tmp/BASH2log.txt 2>&1 &
in reading my log file it seems some variables are not being passed in...
and at the following lines of code:
echo "Creating New Coin - Downloading code base repo"
echo "$localFolder/$coinName"
mkdir -p "$localFolder/$coinName";
cd "$localFolder/$coinName"
git clone "$baseRepository" "$localFolder/$coinName"
echo "Made it here 1"
i get outputs of:
Creating New Coin - Downloading code base repo
/home/test/Foocoin
cloning into '/home/test/Foocoin'
could not create directory '/var/www/.ssh'
host key verification failed
blah blah ....
Why is it looking in the /var/www/ directory?? works fine if I run the script from terminal?
many thanks
So to pack up my comments in an answer:
The shell script is now run as apache, as git uses ssh, corresponding config files are needed. Which were created in /var/www; apaches home directory. Apache did not have write permissions in /var/www thus could not create these files.
To resolve, create the /var/www/.ssh directory yourself and give www-data (or whatever user apache runs under in your system) write access to that folder.
Next, github requires you to authorize ssh keys. It is safer to create a new one for apache in the newly created /var/www/.ssh directory and add this key to your github keychain.
I actually try to laucnh a gnome-term with a php script, seems i have some problems with the users www-data;
my script make only a ls -l command in a directory (is just for a test) and i run it with a php page in my local-web site.
here the gnome-terminal command in my bash script (he run perfectly when i double-click on him) :
gnome-terminal --working-directory=/opt/cuckoo -x bash -c "ls -l"
and here is the call on the php-page :
system("/my/path/to/the/script/script.sh");
i have some echo in my script and i see them in the php page after i try to run the script with the php.page.
i think www-data don't have the right to do so i give the ownership of the script with the chown command, and at last a try the sudo visudo command and make the script execute like the user www-data is root (with NO PASSWD arg)
But i can't open the terminal and make a ls at last, i try with exec too, and show the result with $ouput butthe result is the same as well.
At last my question is : Php can really run a terminal or maybe a fool myself^^? Thanks for taking time to rescure me ;)
PHP can run everything, but depends who spawns it. Forget just running X apps from a web server - you'll need more than just executing them (permissions, DISPLAY and Xauth settings). Read more about the X clients and architecture.
Probably the right place to ask this is at SuperUser, since the problem is not in the coding itself.