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#include "ProcessExplorer.h"
#include "ui_ProcessExplorer.h"
#include <QFile>
#include <QDir>
#include <QRegExp>
ProcessExplorer::ProcessExplorer(int pid, QWidget *parent) :
QDialog(parent),
ui(new Ui::ProcessExplorer),
_pid(pid)
{
ui->setupUi(this);
fillFields(_pid);
ui->tableWidget->horizontalHeader()->setSectionResizeMode(0,QHeaderView::ResizeToContents);
ui->tableWidget->horizontalHeader()->setSectionResizeMode(1,QHeaderView::Stretch);
ui->tableWidget->horizontalHeader()->setSectionResizeMode(2,QHeaderView::ResizeToContents);
ui->tableWidget->horizontalHeader()->setSectionResizeMode(3,QHeaderView::ResizeToContents);
connect(ui->pushButton,SIGNAL(clicked(bool)),this,SLOT(close()));
}
ProcessExplorer::~ProcessExplorer(){
delete ui;
}
void ProcessExplorer::fillFields(int pid){
ui->label_7->setText("");
ui->label_5->setText("");
ui->label_6->setText("");
// general
QString procPath = "/proc/"+QString::number(pid);
// path exe
QFile filePathExe(procPath+"/exe");
ui->label_5->setText(filePathExe.symLinkTarget());
// command line
QFile fileCmdLine(procPath+"/cmdline");
if (fileCmdLine.open(QIODevice::ReadOnly)){
QByteArray fileContents = fileCmdLine.readAll();
fileContents.replace(char(0x00)," ");
ui->label_6->setText(fileContents);
fileCmdLine.close();
}
// path exe
QFile fileCurrentDir(procPath+"/cwd");
ui->label_7->setText(fileCurrentDir.symLinkTarget());
QMap<QString, QString> mapFileProcStatus = mapFromFile("/proc/"+QString::number(pid)+"/status");
ui->label_8->setText(mapFileProcStatus["Pid"]);
ui->label_10->setText(mapFileProcStatus["PPid"]);
ui->label_12->setText(mapFileProcStatus["State"]);
// Environment
QFile fileEnviron(procPath+"/environ");
if (fileEnviron.open(QIODevice::ReadOnly)){
QByteArray fileContents = fileEnviron.readAll();
fileContents.replace(char(0x00),"\n");
ui->textEdit->setText(fileContents);
fileEnviron.close();
}
// Files
QTableWidgetItem *tmpWidgetItem = nullptr;
QDir dir(procPath+"/fd");
dir.setFilter(QDir::Files);
dir.setSorting(QDir::Name);
QFileInfoList list = dir.entryInfoList();
for (int i = 0; i < list.size(); ++i) {
QFileInfo fileInfo = list.at(i);
QString Path = fileInfo.symLinkTarget();
QMap<QString, QString> mapFile = mapFromFile("/proc/"+QString::number(pid)+"/fdinfo/"+fileInfo.fileName());
int pos = mapFile["pos"].toInt();
QString flags = mapFile["flags"];
ui->tableWidget->setRowCount(i+1);
tmpWidgetItem = new QTableWidgetItem(fileInfo.fileName());
ui->tableWidget->setItem(i, 0, tmpWidgetItem);
tmpWidgetItem = new QTableWidgetItem(Path);
tmpWidgetItem->setToolTip(Path);
ui->tableWidget->setItem(i, 1, tmpWidgetItem);
tmpWidgetItem = new QTableWidgetItem(QString::number(pos));
ui->tableWidget->setItem(i, 2, tmpWidgetItem);
tmpWidgetItem = new QTableWidgetItem(flags);
ui->tableWidget->setItem(i, 3, tmpWidgetItem);
}
}
QMap<QString, QString> ProcessExplorer::mapFromFile(QString path){
QMap<QString, QString> result;
QFile file(path);
if (!file.open(QIODevice::ReadOnly|QIODevice::Text)){
return result;
}
QByteArray contents = file.readAll();
QStringList lines = QString(contents).split(QRegularExpression("[\r|\n]"));
for (QString line:lines){
QStringList pairs = line.split(":");
if (pairs.size()==2){
QString key=pairs.at(0);
QString value = pairs.at(1);
value.replace(QRegularExpression("^\\s+"),"");
value.replace(QRegularExpression("\\s+$"),"");
result[key]=value;
}
}
file.close();
return result;
}
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