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DevTools: Move to Userland/DevTools/
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125 changed files with 2 additions and 2 deletions
186
Userland/DevTools/HackStudio/TerminalWrapper.cpp
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186
Userland/DevTools/HackStudio/TerminalWrapper.cpp
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/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "TerminalWrapper.h"
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#include <AK/String.h>
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#include <LibCore/ConfigFile.h>
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#include <LibGUI/BoxLayout.h>
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#include <LibGUI/MessageBox.h>
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#include <LibVT/TerminalWidget.h>
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#include <fcntl.h>
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#include <signal.h>
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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/ioctl.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <unistd.h>
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namespace HackStudio {
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void TerminalWrapper::run_command(const String& command)
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{
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if (m_pid != -1) {
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GUI::MessageBox::show(window(),
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"A command is already running in this TerminalWrapper",
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"Can't run command",
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GUI::MessageBox::Type::Error);
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return;
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}
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int ptm_fd = posix_openpt(O_RDWR | O_CLOEXEC);
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if (ptm_fd < 0) {
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perror("posix_openpt");
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ASSERT_NOT_REACHED();
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}
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if (grantpt(ptm_fd) < 0) {
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perror("grantpt");
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ASSERT_NOT_REACHED();
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}
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if (unlockpt(ptm_fd) < 0) {
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perror("unlockpt");
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ASSERT_NOT_REACHED();
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}
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m_terminal_widget->set_pty_master_fd(ptm_fd);
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m_terminal_widget->on_command_exit = [this] {
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int wstatus;
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int rc = waitpid(m_pid, &wstatus, 0);
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if (rc < 0) {
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perror("waitpid");
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ASSERT_NOT_REACHED();
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}
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if (WIFEXITED(wstatus)) {
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m_terminal_widget->inject_string(String::formatted("\033[{};1m(Command exited with code {})\033[0m\n", wstatus == 0 ? 32 : 31, WEXITSTATUS(wstatus)));
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} else if (WIFSTOPPED(wstatus)) {
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m_terminal_widget->inject_string("\033[34;1m(Command stopped!)\033[0m\n");
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} else if (WIFSIGNALED(wstatus)) {
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m_terminal_widget->inject_string(String::formatted("\033[34;1m(Command signaled with {}!)\033[0m\n", strsignal(WTERMSIG(wstatus))));
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}
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m_pid = -1;
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if (on_command_exit)
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on_command_exit();
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};
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m_pid = fork();
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if (m_pid == 0) {
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// Create a new process group.
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setsid();
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const char* tty_name = ptsname(ptm_fd);
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if (!tty_name) {
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perror("ptsname");
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exit(1);
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}
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close(ptm_fd);
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int pts_fd = open(tty_name, O_RDWR);
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if (pts_fd < 0) {
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perror("open");
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exit(1);
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}
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tcsetpgrp(pts_fd, getpid());
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// NOTE: It's okay if this fails.
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int rc = ioctl(0, TIOCNOTTY);
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close(0);
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close(1);
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close(2);
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rc = dup2(pts_fd, 0);
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if (rc < 0) {
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perror("dup2");
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exit(1);
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}
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rc = dup2(pts_fd, 1);
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if (rc < 0) {
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perror("dup2");
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exit(1);
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}
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rc = dup2(pts_fd, 2);
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if (rc < 0) {
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perror("dup2");
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exit(1);
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}
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rc = close(pts_fd);
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if (rc < 0) {
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perror("close");
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exit(1);
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}
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rc = ioctl(0, TIOCSCTTY);
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if (rc < 0) {
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perror("ioctl(TIOCSCTTY)");
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exit(1);
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}
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setenv("TERM", "xterm", true);
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auto parts = command.split(' ');
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ASSERT(!parts.is_empty());
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const char** args = (const char**)calloc(parts.size() + 1, sizeof(const char*));
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for (size_t i = 0; i < parts.size(); i++) {
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args[i] = parts[i].characters();
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}
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rc = execvp(args[0], const_cast<char**>(args));
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if (rc < 0) {
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perror("execve");
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exit(1);
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}
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ASSERT_NOT_REACHED();
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}
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// (In parent process)
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terminal().scroll_to_bottom();
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}
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void TerminalWrapper::kill_running_command()
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{
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ASSERT(m_pid != -1);
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// Kill our child process and its whole process group.
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[[maybe_unused]] auto rc = killpg(m_pid, SIGTERM);
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}
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TerminalWrapper::TerminalWrapper(bool user_spawned)
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: m_user_spawned(user_spawned)
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{
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set_layout<GUI::VerticalBoxLayout>();
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RefPtr<Core::ConfigFile> config = Core::ConfigFile::get_for_app("Terminal");
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m_terminal_widget = add<TerminalWidget>(-1, false, config);
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if (user_spawned)
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run_command("Shell");
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}
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TerminalWrapper::~TerminalWrapper()
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{
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}
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}
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