I'm trying to make run a SMS sending python script from PHP.
SendSMS.py:
#!/usr/bin/env python
import gammu
sm=gammu.StateMachine()
sm.ReadConfig()
sm.Init()
message={
'SMSC':{'Location':1},
'Text':'blah blah bllah',
'Number':'xxxxxxxxx
}
sm.SendSMS(message)
when i run it from the terminal with "sudo" it doesnt work.But works fine without "sudo"
the error:
gammu.ERR_DEVICENOTEXIST: {'Text': u"Error opening device, it doesn't
exist.", 'Code': 4, 'Where': 'Init'}
I want to run the SMS script from a php script using shell_exec(). The problems are:
I cant run the SMS script with sudo
I cant run it through php without sudo
Please tell me how to fix this
Device-Raspberry pi 3
OS- Raspbian
Most likely it doesn't find the configuration file, by default it's searched in user home directory which is different when executed through sudo.
You can specify path to configuration file on command line however it's better to not execute gammu as root and configure the device to be accessible by user.
Related
I have setup 2 Ubuntu machines: 192.168.1.104 & 192.168.1.105 have installed ssh on both the machines generated ssh-keygen on 104 machine and added key to both the ip-addresses.
I want to copy file from one 192.168.1.104 to 192.168.1.105 through php.
I tried this command scp /home/tejas/hadoop/conf/core-site.xml tejas#192.168.1.105:/home/tejas/hadoop/conf/core-site.xml
through shell script the file gets copied perfectly but when I run the same command through php-script
<?php
$output = shell_exec('scp /home/tejas/hadoop/conf/core-site.xml tejas#192.168.1.105:/home/tejas/hadoop/conf/core-site.xml');
?>
It doesnot show any error but file doesnot get copied. Also tried similar with exec() and also tried rysnc instead of scp rsync -avzh /home/tejas/hadoop/conf/mapred-site.xml tejas#192.168.1.105:/home/tejas/hadoop/conf/mapred-site.xml still no luck.
both the commands are working perfectly through shell script but not working through php
I checked php is not in safe-mode and shell_exec() or exec() is not disabled in php.ini
exec() and shell_exec() get executed by the user running the php script (usually www-data on Ubuntu but could be apache or something else). It's likely that this user does not have permission on the files/folders. One solution is to create a new user Group and add the user (www-data) to this Group, then set the proper ownership/permissions on the files/folders to copy/be copied to.
I'm trying to make a hook on bitbucket, that executes a php file, and this file executes the pull command:
shell_exec('/usr/local/cpanel/3rdparty/bin/git pull');
The pull command works fine on the SSH console, but the PHP returns the error:
Permission denied (publickey). fatal: Could not read from remote
repository.
Please make sure you have the correct access rights and the repository
exists.
The command --version shows the path to git is right, whoiami returns the same user on both, so I don't know if it is a permission issue.
What can be going wrong?
Edit: An additional issue: the alias I added for git don't work on PHP, only the full path as above. Via terminal it works just fine. Maybe it's the same reason why the key don't work in php.
Edit 2: $PATH is different on both.
When you run this command within a PHP script you are not running the command as yourself:
shell_exec('/usr/local/cpanel/3rdparty/bin/git pull');
The reason it works from the terminal console is you run the command as yourself from the console. But on a web server, you are not the user running the command. Remember: When you run PHP on a web server, it is a an Apache module. Meaning the web server user—which could be www-data, root or even apache on some systems—is running the PHP script which then runs the shell_exec command.
So it would never work as you have it setup. Perhaps you can kludge something together that would allow a key-pair to be used by the web server for these purposes, but that seems like a security risk waiting to happen.
I am trying to do simple web service in PHP (I use Laravel) to restart and shutdown my raspberry pi.
I tried in my PHP service call something like this:
exec("putty -ssh pi#192.168.0.12 -pw myPassword -m D:\workspace\CPS\public\ssh\restart.txt");
In my restart.txt I have simple command sudo shutdown -r now
but when I call my web service in Advanced Rest Client Application (Chrome addon), my request is processing and never ending. In command line this works properly.
I thought that the problem is with running PuTTy directly in PHP and I do some changes and create .bat file with the following content:
echo off
putty -ssh pi#%1 -pw %2 -m %3
I start this batch script like this:
exec("D:\workspace\CPS\public\ssh\restart.bat 192.168.0.12 myPassword D:\workspace\CPS\public\ssh\restart.txt");
...but result is the same. I changed my web service to GET method and call service in the browser like page but nothing change.
I haven't any error/exception in log files and in console. I also checked the system log but nothing found.
Am I doing something wrong or missed something? It is possible or there is a better way to achieve this?
Currently I run it on Windows 7 and XAMPP. I will do second version for Linux in future and decide in code which command should I run depends on current environment.
Update
I forgot to wrote, all required users have permissions to execute files in my (...)/ssh directory
Try to use:
echo system("D:\workspace\CPS\public\ssh\restart.bat 192.168.0.12 myPassword D:\workspace\CPS\public\ssh\restart.txt");
to get output. May be you find something error.
And you need to check safe_mode options in your php.ini file (like disable_functions and safe_mode_exec_dir).
And try to use FULL path to your putty.exe file. Webserver work's in another directory, than your bat file.
I am having trouble getting a file to execute without typing sudo before it. I think the problem is the libraries I used require you to be a superuser.
I am working on a program for the Raspberry Pi and so far everything has worked great. The program takes a command line argument and outputs it to a separate 2x16 LCD. So if I type the following command as root or place sudo in front of it the program functions as intended:./serialTest Hello World.
What I am working on now is getting the value of a text box on a PHP webpage and submitting it to the program as a command line argument using the exec() function in PHP The problem is that I am unable to execute it because unless I am root I have tried exec("sudo ./serialTest" . $textBox); but it still tells me Permission Denied
After further reading into the libraries I am using I cam across instructions on how to execute the serialOpen function without using sudo or being root I have added the user pi and www-data to the dialout group I have verified this with id pi id www-data. The program still says Permission denied. Is there something I could look at further or am I doing something wrong? I have included the excerpt from the page that states how to run it without using sudo or being root
You can use it without sudo if you add yourself into the dialout group. either edit /etc/group, or use the usermod command. (and logout/login again)
-Gordon
It depends on the server rights provided by Server Service Provider. If you are the Service Prover then edit the Shell Access Rights to executed Exec command in PHP configuration file. As default, exec is not provided in default that's why the message is coming
If you are not service provider then contact them to do things..
Here's my goal :
I have a Windows XP PC with all the source code in it and a development database.
Let's call it "pc.dev.XP".
I have a destination computer that runs Linux.
Let's call it "pc.demo.Linux".
Here's what I've done on "pc.dev.XP" (just so you get the context) :
installed all cygwin stuff
created a valid rsa key and put it on the dest
backup computer so that ssh doesn't
ask for a password
rsync works pretty well this way
If i try to do this on "pc.dev.XP" via a command line :
cd \cygwin\bin
ssh Fred#pc.demo.Linux "cd /var/www && ls -al"
this works perfectly without asking a password
Now here's what I want to do on the "pc.dev.XP":
launch a php script that extract the dev. database into a sql file
zip this file
transfer it via ftp to the "pc.demo.Linux"
log to the "pc.demo.Linux" and execute "unzip then mysql -e "source unzipped file"
if I run on "pc.dev.XP" manually :
putty -load "myconf" -l Fred -pw XXX -m script.file.that.unzip.and.integrates.sql
this works perfectly.
Same for :
cd \cygwin\bin
ssh Fred#dest "cd /var/www && ls -al"
If I try to exec() in php (wamp installed on "pc.dev.XP") those scripts they hangs. I'm pretty sure this is because the user is "SYSTEM" and not "Fred", and putty or ssh ask for a password but maybe I'm wrong.
Anyway I'm looking for a way to automate those 4 tasks I've described and I'm stuck because exec() hangs. There's no problem with safe_exec_mode or safe_exec_dir directives, they're disabled on the development machine, thus exec() works pretty well if I try some basic stuff like exec("dir")
Any idea what I could do / check / correct ?
I'm not sure if this is what you need, but I typically use a construct like this to sync databases across machines:
php extractFromDb.php | ssh user#remote.com "mysql remoteDatabaseName"
This executes the PHP script locally, and pipes the SQL commands the script prints out through SSH straigt into the remote mysql process which executes them in the remote database.
If you need compression, you can either use SSH's -C switch, or integrate the use of your compression program of choice like this:
php extractFromDb.php | gzip -9 | ssh user#remote.com "gunzip | mysql remoteDatabaseName"
You want to do this from PHP running under apache, as in I go to http://myWebserver.com/crazyScript.php and all this happens? Or you just want to write your scripts in PHP and invoke them via cmd line?
If you want the first solution, try running your apache/iss under a different user that has credentials to perform all those tasks.
"if I run on the development PC manually this works perfectly.".
Why not do it like that? When you run that script, I assume you're connecting to the local SSH server on the dev machine. When you do this, you are using the credentials Fred, so everything works. When you run the PHP script, you are right that it is probably running as SYSTEM.
Try either changing the user that apache is running as or use php to connect to the local ssh thereby using alternate credentials.
Here's what I did :
a batch file that :
Calls a php file via "php.exe my_extract_then_compress_then_ftp.php"
Calls rsync to synchronize the source folder
Calls putty -l user -pw password -m file_with_ssh_commands_to_execute
It works like a charm.