mirror of
https://github.com/edeproject/ede.git
synced 2023-08-10 21:13:03 +03:00
379 lines
8.1 KiB
C++
379 lines
8.1 KiB
C++
/*
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* $Id$
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*
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* ede-launch, launch external application
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* Part of Equinox Desktop Environment (EDE).
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* Copyright (c) 2008-2009 EDE Authors.
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*
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* This program is licensed under terms of the
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* GNU General Public License version 2 or newer.
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* See COPYING for details.
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <sys/resource.h>
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#include <unistd.h>
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#include <signal.h>
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#include <errno.h>
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#include <ctype.h>
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#include <FL/x.H>
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#include <FL/Fl.H>
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#include <FL/Fl_Box.H>
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#include <FL/Fl_Button.H>
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#include <FL/Fl_Check_Button.H>
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#include <FL/Fl_Input.H>
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#include <FL/Fl_Pixmap.H>
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#include <edelib/Run.h>
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#include <edelib/Resource.h>
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#include <edelib/Window.h>
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#include <edelib/Nls.h>
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#include <edelib/Debug.h>
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#include <edelib/Missing.h>
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#include <edelib/MessageBox.h>
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#include <edelib/String.h>
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#include "icons/run.xpm"
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/*
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* Window from X11 is alread included with Fl.H so we can't use EDELIB_NS_USING(Window) here.
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* Stupid C++ namespaces
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*/
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#define LaunchWindow edelib::Window
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EDELIB_NS_USING(Resource)
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EDELIB_NS_USING(String)
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EDELIB_NS_USING(RES_USER_ONLY)
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EDELIB_NS_USING(run_sync)
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EDELIB_NS_USING(run_async)
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EDELIB_NS_USING(alert)
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static Fl_Pixmap image_run((const char**)run_xpm);
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static Fl_Input* dialog_input;
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static Fl_Check_Button* in_term;
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static void help(void) {
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puts("Usage: ede-launch program");
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puts("EDE program launcher");
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}
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static char* get_basename(const char* path) {
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char *p = (char*)strrchr(path, '/');
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if(p)
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return (p + 1);
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return (char*)p;
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}
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static char** cmd_split(const char* cmd) {
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int sz = 10;
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int i = 0;
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char* c = strdup(cmd);
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char** arr = (char**)malloc(sizeof(char*) * sz);
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for(char* p = strtok(c, " "); p; p = strtok(NULL, " ")) {
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if(i >= sz) {
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sz *= 2;
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arr = (char**)realloc(arr, sizeof(char*) * sz);
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}
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arr[i++] = strdup(p);
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}
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arr[i] = NULL;
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free(c);
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return arr;
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}
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static void start_crasher(const char* cmd, int sig) {
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const char* base = get_basename(cmd);
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const char* ede_app_flag = "";
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/* this means the app was called without full path */
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if(!base)
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base = cmd;
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/*
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* determine is our app by checking the prefix; we don't want user to send bug reports about crashes
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* of foreign applications
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*/
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if(strncmp(base, "ede-", 4) == 0)
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ede_app_flag = "--edeapp";
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/* call edelib implementation instead start_child_process() to prevents loops if 'ede-crasher' crashes */
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run_sync("ede-crasher %s --appname %s --apppath %s --signal %i", ede_app_flag, base, cmd, sig);
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}
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static int start_child_process(const char* cmd) {
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int pid, in[2], out[2], err[2];
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char** params = cmd_split(cmd);
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pipe(in);
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pipe(out);
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pipe(err);
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signal(SIGCHLD, SIG_DFL);
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pid = fork();
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switch(pid) {
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case 0:
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/* child process */
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close(0);
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dup(in[0]);
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close(in[0]);
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close(in[1]);
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close(1);
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dup(out[1]);
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close(out[0]);
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close(out[1]);
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close(2);
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dup(err[1]);
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close(err[0]);
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close(err[1]);
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errno = 0;
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/* start it */
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execvp(params[0], params);
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/* some programs use value 2 (tar) */
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if(errno == 2)
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_exit(199);
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else
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_exit(errno);
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break;
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case -1:
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E_WARNING(E_STRLOC ": fork() failed\n");
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/* close the pipes */
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close(in[0]);
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close(in[1]);
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close(out[0]);
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close(out[1]);
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close(err[0]);
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close(err[1]);
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break;
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default:
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/* parent */
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close(in[0]);
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close(out[1]);
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close(err[1]);
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break;
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}
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/* cleanup when returns from the child */
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for(int i = 0; params[i]; i++)
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free(params[i]);
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free(params);
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int status = 0, ret = 1;
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errno = 0;
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if(waitpid(pid, &status, 0) < 0) {
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E_WARNING(E_STRLOC ": waitpid() failed with '%s'\n", strerror(errno));
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return 1;
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}
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if(WIFEXITED(status)) {
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ret = WEXITSTATUS(status);
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} else if(WIFSIGNALED(status) && WTERMSIG(status) == SIGSEGV) {
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start_crasher(cmd, SIGSEGV);
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} else {
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E_WARNING(E_STRLOC ": child '%s' killed\n", cmd);
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}
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return ret;
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}
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static int start_child_process_with_core(const char* cmd) {
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struct rlimit r;
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errno = 0;
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if(getrlimit(RLIMIT_CORE, &r) == -1) {
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E_WARNING(E_STRLOC ": gerlimit() failed with '%s'\n", strerror(errno));
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return -1;
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}
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rlim_t old = r.rlim_cur;
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r.rlim_cur = RLIM_INFINITY;
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if(setrlimit(RLIMIT_CORE, &r) == -1) {
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E_WARNING(E_STRLOC ": setrlimit() failed with '%s'\n", strerror(errno));
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return -1;
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}
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int ret = start_child_process(cmd);
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r.rlim_cur = old;
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if(setrlimit(RLIMIT_CORE, &r) == -1) {
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E_WARNING(E_STRLOC ": setrlimit() failed with '%s'\n", strerror(errno));
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return -1;
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}
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return ret;
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}
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static bool start_child(const char* cmd) {
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#ifdef HAVE_LIBSTARTUP_NOTIFICATION
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run_async("ede-launch-sn --program %s --icon applications-order", cmd);
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#endif
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int ret = start_child_process_with_core(cmd);
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if(ret == 199) {
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alert(_("Program '%s' not found.\n\nPlease check if given path to the "
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"executable was correct or adjust $PATH environment variable to "
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"point to the directory where target executable exists"), cmd);
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return false;
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}
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if(ret == EACCES) {
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/* now check the if file is executable since EACCES is common error if not so */
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if(access(cmd, X_OK) != 0)
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alert(_("You are trying to execute '%s', but it is not executable file"), cmd);
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else
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alert(_("You do not have enough permissions to execute '%s'"), cmd);
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return false;
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}
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return true;
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}
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static void cancel_cb(Fl_Widget*, void* w) {
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LaunchWindow* win = (LaunchWindow*)w;
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win->hide();
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}
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static void ok_cb(Fl_Widget*, void* w) {
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LaunchWindow* win = (LaunchWindow*)w;
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const char* cmd = dialog_input->value();
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bool started = false;
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win->hide();
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/* do not block dialog when program is starting */
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Fl::check();
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/* TODO: is 'cmd' safe after hide? */
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if(in_term->value()) {
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char buf[128];
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const char* term = getenv("TERM");
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/* also check if TERM get inherited from login console */
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if(!term || (strcmp(term, "linux") == 0) || (strcmp(term, "dumb") == 0))
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term = "xterm";
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snprintf(buf, sizeof(buf), "%s -e %s", term, cmd);
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started = start_child(buf);
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} else {
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started = start_child(cmd);
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}
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if(!started) {
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/* show dialog again */
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win->show();
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if(cmd)
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dialog_input->position(0, dialog_input->size());
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} else {
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Resource rc;
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rc.set("History", "open", cmd);
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rc.save("ede-launch-history");
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}
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}
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static int start_dialog(int argc, char** argv) {
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LaunchWindow* win = new LaunchWindow(370, 195, _("Run Command"));
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win->begin();
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Fl_Box* icon = new Fl_Box(10, 10, 55, 55);
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icon->image(image_run);
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Fl_Box* txt = new Fl_Box(70, 10, 290, 69, _("Enter the name of the application "
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"you would like to run or the URL you would like to view"));
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txt->align(132|FL_ALIGN_INSIDE);
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dialog_input = new Fl_Input(70, 90, 290, 25, _("Open:"));
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Resource rc;
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char buf[128];
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if(rc.load("ede-launch-history") && rc.get("History", "open", buf, sizeof(buf))) {
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dialog_input->value(buf);
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/* make text appear selected */
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dialog_input->position(0, dialog_input->size());
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}
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in_term = new Fl_Check_Button(70, 125, 290, 25, _("Run in terminal"));
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in_term->down_box(FL_DOWN_BOX);
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Fl_Button* ok = new Fl_Button(175, 160, 90, 25, _("&OK"));
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ok->callback(ok_cb, win);
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Fl_Button* cancel = new Fl_Button(270, 160, 90, 25, _("&Cancel"));
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cancel->callback(cancel_cb, win);
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win->end();
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win->window_icon(run_xpm);
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win->show(argc, argv);
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return Fl::run();
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}
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int main(int argc, char** argv) {
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if(argc <= 1)
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return start_dialog(argc, argv);
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/* do not see possible flags as commands */
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if(argv[1][0] == '-') {
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help();
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return 0;
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}
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String args;
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unsigned int alen;
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for(int i = 1; i < argc; i++) {
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args += argv[i];
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args += ' ';
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}
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alen = args.length();
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/* remove start/ending quotes and spaces */
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if((args[0] == '"') || isspace(args[0]) || (args[alen - 1] == '"') || isspace(args[alen - 1])) {
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int i;
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char *copy = strdup(args.c_str());
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char *ptr = copy;
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/* remove ending first */
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for(i = (int)alen - 1; i > 0 && (ptr[i] == '"' || isspace(ptr[i])); i--)
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;
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ptr[i + 1] = 0;
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/* remove then starting */
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for(; *ptr && (*ptr == '"' || isspace(*ptr)); ptr++)
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;
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start_child(ptr);
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free(copy);
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} else {
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start_child(args.c_str());
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}
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return 0;
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}
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