mirror of
https://github.com/edeproject/ede.git
synced 2023-08-10 21:13:03 +03:00
585 lines
14 KiB
C++
585 lines
14 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/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 <edelib/File.h>
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#include <edelib/WindowUtils.h>
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#include <edelib/DesktopFile.h>
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#include <edelib/StrUtil.h>
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#include <edelib/Debug.h>
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#include <edelib/Ede.h>
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#include "StartupNotify.h"
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#include "icons/run.xpm"
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/* so value could be directed returned to shell */
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#define RETURN_FROM_BOOL(v) (v != false)
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/* config name where all things are stored and read from */
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#define EDE_LAUNCH_CONFIG "ede-launch"
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EDELIB_NS_USING_LIST(11, (Resource, String, DesktopFile, RES_USER_ONLY, DESK_FILE_TYPE_APPLICATION, run_sync, run_async, alert, file_path, window_center_on_screen, str_ends))
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EDELIB_NS_USING_AS(Window, LaunchWindow)
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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 [OPTIONS] [PROGRAM]");
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puts("EDE program launcher");
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puts("Options:");
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puts(" -h, --help show this help");
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puts(" -l, --launch [TYPE] [PARAMETERS] launch preferred application of TYPE with");
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puts(" given PARAMETERS; see Types below");
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puts(" -w, --working-dir [DIR] run programs with DIR as working directory\n");
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puts("Types:");
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puts(" browser preferred web browser");
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puts(" mail preferred mail reader");
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puts(" terminal preferred terminal");
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puts(" file_manager preferred file manager\n");
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puts("Example:");
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puts(" ede-launch --launch browser http://www.foo.com");
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puts(" ede-launch --launch mail mailto:foo@foo.com");
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puts(" ede-launch gvim");
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puts(" ede-launch ~/Desktop/foo.desktop");
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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 bool allowed_launch_type(const char *t) {
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E_RETURN_VAL_IF_FAIL(t != 0, false);
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/* should be synced with keys from ede-preferred-applications */
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static const char *launch_types[] = {
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"browser",
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"mail",
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"terminal",
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"file_manager",
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0
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};
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for(int i = 0; launch_types[i]; i++) {
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/* we do not allow >= 64 chars from user input */
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if(strncmp(t, launch_types[i], 64) == 0)
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return true;
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}
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return false;
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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) 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(PREFIX "/bin/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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E_DEBUG(E_STRLOC ": Starting '%s'\n", cmd);
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StartupNotify *n = startup_notify_start(cmd, "applications-order");
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int ret = start_child_process_with_core(cmd);
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startup_notify_end(n);
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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 bool start_desktop_file(const char *cmd) {
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DesktopFile d;
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if(!d.load(cmd)) {
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alert(_("Unable to load .desktop file '%s'. Got: %s"), cmd, d.strerror());
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goto FAIL;
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}
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if(d.type() != DESK_FILE_TYPE_APPLICATION) {
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alert(_("Starting other types of .desktop files except 'Application' is not supported now"));
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goto FAIL;
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}
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char buf[PATH_MAX];
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if(!d.exec(buf, PATH_MAX)) {
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alert(_("Unable to run '%s'.\nProbably this file is malformed or 'Exec' key has non-installed program"), cmd);
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goto FAIL;
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}
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return start_child(buf);
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FAIL:
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return false;
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}
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/* concat all arguments preparing it for start_child() */
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static void join_args(int start, int argc, char **argv, const char *program, String &ret) {
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String args;
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unsigned int alen;
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/* append program if given */
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if(program) {
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args = program;
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args += ' ';
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}
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for(int i = start; 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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ret = copy;
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free(copy);
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} else {
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ret = args;
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}
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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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#define RETURN_IF_VALID_TERM(t, r) \
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do { \
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if(t && ((strcmp(t, "linux") != 0) || (strcmp(t, "dumb") != 0))) { \
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r = file_path(t, false); \
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if(E_UNLIKELY(r.empty())) return true; \
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} \
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} while(0)
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static bool find_terminal(String &ret) {
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/* before goint to list, try to read it from config file */
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Resource rc;
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if(rc.load(EDE_LAUNCH_CONFIG)) {
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char buf[64];
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if(rc.get("Preferred", "terminal", buf, sizeof(buf))) {
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ret = buf;
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return true;
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}
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}
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/* list of known terminals */
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static const char *terms[] = {
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"xterm",
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"rxvt",
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"Terminal",
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"gnome-terminal",
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"konsole",
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0
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};
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const char* term = getenv("TERM");
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RETURN_IF_VALID_TERM(term, ret);
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term = getenv("COLORTERM");
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RETURN_IF_VALID_TERM(term, ret);
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for(int i = 0; terms[i]; i++) {
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term = terms[i];
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RETURN_IF_VALID_TERM(term, ret);
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}
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return false;
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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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String term;
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if(find_terminal(term)) {
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snprintf(buf, sizeof(buf), "%s -e %s", term.c_str(), cmd);
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started = start_child(buf);
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} else {
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E_WARNING(E_STRLOC ": unable to find any suitable terminal\n");
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}
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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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/* so could load previous content */
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rc.load(EDE_LAUNCH_CONFIG);
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rc.set("History", "open", cmd);
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rc.save(EDE_LAUNCH_CONFIG);
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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 you would like to run"));
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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_CONFIG) && 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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window_center_on_screen(win);
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win->show(argc, argv);
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return Fl::run();
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}
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#define CHECK_ARGV(argv, pshort, plong) ((strcmp(argv, pshort) == 0) || (strcmp(argv, plong) == 0))
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static const char* next_param(int curr, char **argv, int argc) {
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int j = curr + 1;
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if(j >= argc)
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return NULL;
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if(argv[j][0] == '-')
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return NULL;
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return argv[j];
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}
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int main(int argc, char** argv) {
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EDE_APPLICATION("ede-launch");
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/* start dialog if we have nothing */
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if(argc <= 1)
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return start_dialog(argc, argv);
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int ca = 1; /* current argument index */
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const char *cwd, *launch_type;
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cwd = launch_type = 0;
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/* parse args and stop as soon as detected first non-parameter value (not counting parameter values) */
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for(; ca < argc; ca++) {
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if(argv[ca][0] != '-') break;
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if(CHECK_ARGV(argv[ca], "-h", "--help")) {
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help();
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return 0;
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}
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if(CHECK_ARGV(argv[ca], "-l", "--launch")) {
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launch_type = next_param(ca, argv, argc);
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if(!launch_type) {
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puts("Missing lauch type. Run program with '-h' to see options");
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return 1;
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}
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if(!allowed_launch_type(launch_type)) {
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puts("This is not allowed launch type. Run program with '-h' to see options");
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return 1;
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}
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ca++;
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continue;
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}
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if(CHECK_ARGV(argv[ca], "-w", "--working-dir")) {
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cwd = next_param(ca, argv, argc);
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if(!cwd) {
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puts("Missing working directory parameter. Run program with '-h' to see options");
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return 1;
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}
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ca++;
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continue;
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}
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printf("Bad parameter '%s'. Run program with '-h' to see options\n", argv[ca]);
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return 1;
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}
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/* make sure we have something to run but only if --launch isn't used */
|
|
if(!argv[ca] && !launch_type) {
|
|
puts("Missing execution parameter(s). Run program with '-h' to see options");
|
|
return 1;
|
|
}
|
|
|
|
/* setup working dir */
|
|
if(cwd) {
|
|
errno = 0;
|
|
if(chdir(cwd) != 0) {
|
|
alert(_("Unable to change directory to '%s'. Got '%s' (%i)"), cwd, strerror(errno), errno);
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
/* check if we have .desktop file */
|
|
if(argv[ca] && str_ends(argv[ca], ".desktop"))
|
|
return RETURN_FROM_BOOL(start_desktop_file(argv[ca]));
|
|
|
|
/* make arguments and exec program */
|
|
String args;
|
|
if(launch_type) {
|
|
Resource rc;
|
|
char buf[64];
|
|
|
|
if(!rc.load(EDE_LAUNCH_CONFIG) || !rc.get("Preferred", launch_type, buf, sizeof(buf))) {
|
|
E_WARNING("Unable to find out launch type. Balling out...\n");
|
|
return 1;
|
|
}
|
|
|
|
join_args(ca, argc, argv, buf, args);
|
|
} else {
|
|
join_args(ca, argc, argv, 0, args);
|
|
}
|
|
|
|
return RETURN_FROM_BOOL(start_child(args.c_str()));
|
|
}
|