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// Copyright © 2013 sss
//.
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//.
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#include <stdio.h>
#include <string>
#include <list>
#include <algorithm>
#include <fstream>
#include "api_service.h"
using namespace service;
struct alias
{
std::string _alias, cmd;
bool operator==(std::string a)
{
return this->_alias == a;
}
};
std::list<alias> aliases;
std::list<service_info::command> cmds;
std::string extract_aliased_cmd(std::string cmd)
{
std::list<alias>::iterator i = std::find(aliases.begin(), aliases.end(), cmd);
if(i != aliases.end())
return i->cmd;
else
return std::string();
}
void * shell_exec(void * t)
{
char *c = (char*)t;
std::string cmd;
if(c[0] != '/')
cmd = extract_aliased_cmd(c);
else
cmd = c;
if(!cmd.empty())
{ //TODO: handle also stderr
FILE *f = popen(cmd.c_str(), "r");
if(f)
{
std::string *ret = new std::string;
char buf[128];
while(fgets(buf, 128, f))
ret->append(buf);
return (void*)ret;
}
else
{
//TODO: handle fail (need to extend service api ?)
}
}
return (void*)new std::string;
}
void load_cmds()
{
std::fstream f("./unix_exec_service.cmds", std::fstream::in);
if(!f.is_open())
f.open("./modules/unix_exec_service.cmds");
if(!f.is_open())
return;
char buf[2048];
while(f.good() && !f.eof())
{
std::string str, cmd, _alias, descr;
f.getline(buf, 2047);
if(buf[0] == '#')
continue;
str = buf;
if(buf[0] != '=')
{
std::string::size_type p2 = str.find("=");
if(p2 != std::string::npos)
{
_alias = str.substr(0, p2);
}
}
std::string::size_type p1 = str.find("="), p2 = 0;
if(p1 != std::string::npos)
{
p1++;
p2 = str.find(";", p1);
if(p2 != std::string::npos)
cmd = str.substr(p1, p2-p1);
}
p1 = str.find(";");
if(p1 != std::string::npos && p1 < str.length())
{
p1++;
descr = str.substr(p1);
}
service_info::command c;
if(!_alias.empty())
{
alias a;
a._alias = _alias;
a.cmd = cmd;
c.command = _alias;
aliases.push_back(a);
}
else
c.command = cmd;
c.description = descr;
if(!c.command.empty())
cmds.push_back(c);
// printf("%s | %s | %s\n", _alias.c_str(), cmd.c_str(), descr.c_str());
}
}
init_func(init)
{
load_cmds();
}
services(get_services)
{
service_info shell_exec_service;
shell_exec_service.acc = ACC_CHAR_PTR;
shell_exec_service.ret = RET_STD_STRING_PTR;
shell_exec_service.name = "Shell exec";
shell_exec_service.description = "Run shell command and return output";
shell_exec_service.exec = &shell_exec;
shell_exec_service.predefined = cmds;
s.push_back(shell_exec_service);
}
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