Template creation command (#3531)

* Tasks are selectable

* Almost there

* It works

* fmt

* remove dead code

* Remove unnecessary comments

* Improve instructions

* fix bug

* Add some dummy values for paths

src/agent/onefuzz-task/src/local/cmd.rs

@@ -1,26 +1,26 @@
 // Copyright (c) Microsoft Corporation.
 // Licensed under the MIT License.
 
+use super::{create_template, template};
 #[cfg(any(target_os = "linux", target_os = "windows"))]
 use crate::local::coverage;
 use crate::local::{common::add_common_config, libfuzzer_fuzz, tui::TerminalUi};
 use anyhow::{Context, Result};
+
 use clap::{Arg, ArgAction, Command};
 use std::time::Duration;
 use std::{path::PathBuf, str::FromStr};
 use strum::IntoEnumIterator;
 use strum_macros::{EnumIter, EnumString, IntoStaticStr};
 use tokio::{select, time::timeout};
-
-use super::template;
-
 #[derive(Debug, PartialEq, Eq, EnumString, IntoStaticStr, EnumIter)]
 #[strum(serialize_all = "kebab-case")]
 enum Commands {
     #[cfg(any(target_os = "linux", target_os = "windows"))]
     Coverage,
     LibfuzzerFuzz,
     Template,
+    CreateTemplate,
 }
 
 const TIMEOUT: &str = "timeout";
@@ -43,7 +43,7 @@ pub async fn run(args: clap::ArgMatches) -> Result<()> {
 
     let sub_args = sub_args.clone();
 
-    let terminal = if start_ui {
+    let terminal = if start_ui && command != Commands::CreateTemplate {
         Some(TerminalUi::init()?)
     } else {
         env_logger::Builder::from_env(env_logger::Env::default().default_filter_or("info")).init();
@@ -62,6 +62,7 @@ pub async fn run(args: clap::ArgMatches) -> Result<()> {
 
                 template::launch(config, event_sender).await
             }
+            Commands::CreateTemplate => create_template::run(),
         }
     });
 
@@ -116,6 +117,7 @@ pub fn args(name: &'static str) -> Command {
                 .args(vec![Arg::new("config")
                     .value_parser(value_parser!(std::path::PathBuf))
                     .required(true)]),
+            Commands::CreateTemplate => create_template::args(subcommand.into()),
         };
 
         cmd = if add_common {

src/agent/onefuzz-task/src/local/coverage.rs

@@ -148,7 +148,20 @@ pub struct Coverage {
 }
 
 #[async_trait]
-impl Template for Coverage {
+impl Template<Coverage> for Coverage {
+    fn example_values() -> Coverage {
+        Coverage {
+            target_exe: PathBuf::from("path_to_your_exe"),
+            target_env: HashMap::new(),
+            target_options: vec![],
+            target_timeout: None,
+            module_allowlist: None,
+            source_allowlist: None,
+            input_queue: Some(PathBuf::from("path_to_your_inputs")),
+            readonly_inputs: vec![PathBuf::from("path_to_readonly_inputs")],
+            coverage: PathBuf::from("path_to_where_you_want_coverage_to_be_output"),
+        }
+    }
     async fn run(&self, context: &RunContext) -> Result<()> {
         let ri: Result<Vec<SyncedDir>> = self
             .readonly_inputs

src/agent/onefuzz-task/src/local/create_template.rs

@@ -0,0 +1,285 @@
+use crate::local::template::CommonProperties;
+
+use super::template::{TaskConfig, TaskConfigDiscriminants, TaskGroup};
+use anyhow::Result;
+use clap::Command;
+use std::str::FromStr;
+use std::{
+    io,
+    path::{Path, PathBuf},
+};
+
+use strum::VariantNames;
+
+use crate::local::{
+    coverage::Coverage, generic_analysis::Analysis, generic_crash_report::CrashReport,
+    generic_generator::Generator, libfuzzer::LibFuzzer,
+    libfuzzer_crash_report::LibfuzzerCrashReport, libfuzzer_merge::LibfuzzerMerge,
+    libfuzzer_regression::LibfuzzerRegression, libfuzzer_test_input::LibfuzzerTestInput,
+    template::Template, test_input::TestInput,
+};
+
+use crossterm::{
+    event::{self, DisableMouseCapture, EnableMouseCapture, Event, KeyCode, KeyEventKind},
+    execute,
+    terminal::{disable_raw_mode, enable_raw_mode, EnterAlternateScreen, LeaveAlternateScreen},
+};
+use tui::{prelude::*, widgets::*};
+
+pub fn args(name: &'static str) -> Command {
+    Command::new(name).about("interactively create a template")
+}
+
+pub fn run() -> Result<()> {
+    // setup terminal
+    enable_raw_mode()?;
+    let mut stdout = io::stdout();
+    execute!(stdout, EnterAlternateScreen, EnableMouseCapture)?;
+    let backend = CrosstermBackend::new(stdout);
+    let mut terminal = Terminal::new(backend)?;
+
+    // create app and run it
+    let app = App::new();
+    let res = run_app(&mut terminal, app);
+
+    // restore terminal
+    disable_raw_mode()?;
+    execute!(
+        terminal.backend_mut(),
+        LeaveAlternateScreen,
+        DisableMouseCapture
+    )?;
+    terminal.show_cursor()?;
+
+    match res {
+        Ok(None) => { /* user quit, do nothing */ }
+        Ok(Some(path)) => match path.canonicalize() {
+            Ok(canonical_path) => println!("Wrote the template to: {:?}", canonical_path),
+            _ => println!("Wrote the template to: {:?}", path),
+        },
+        Err(e) => println!("Failed to write template due to {}", e),
+    }
+
+    Ok(())
+}
+
+fn run_app<B: Backend>(terminal: &mut Terminal<B>, mut app: App) -> Result<Option<PathBuf>> {
+    loop {
+        terminal.draw(|f| ui(f, &mut app))?;
+        if let Event::Key(key) = event::read()? {
+            if key.kind == KeyEventKind::Press {
+                match key.code {
+                    KeyCode::Char('q') => return Ok(None),
+                    KeyCode::Char(' ') => app.items.toggle(),
+                    KeyCode::Down => app.items.next(),
+                    KeyCode::Up => app.items.previous(),
+                    KeyCode::Enter => {
+                        return match generate_template(app.items.items) {
+                            Ok(p) => Ok(Some(p)),
+                            Err(e) => Err(e),
+                        }
+                    }
+                    _ => {}
+                }
+            }
+        }
+    }
+}
+
+fn generate_template(items: Vec<ListElement>) -> Result<PathBuf> {
+    let tasks: Vec<TaskConfig> = items
+        .iter()
+        .filter(|item| item.is_included)
+        .filter_map(|list_element| {
+            match TaskConfigDiscriminants::from_str(list_element.task_type) {
+                Err(e) => {
+                    error!(
+                        "Failed to match task config {:?} - {}",
+                        list_element.task_type, e
+                    );
+                    None
+                }
+                Ok(t) => match t {
+                    TaskConfigDiscriminants::LibFuzzer => {
+                        Some(TaskConfig::LibFuzzer(LibFuzzer::example_values()))
+                    }
+                    TaskConfigDiscriminants::Analysis => {
+                        Some(TaskConfig::Analysis(Analysis::example_values()))
+                    }
+                    TaskConfigDiscriminants::Coverage => {
+                        Some(TaskConfig::Coverage(Coverage::example_values()))
+                    }
+                    TaskConfigDiscriminants::CrashReport => {
+                        Some(TaskConfig::CrashReport(CrashReport::example_values()))
+                    }
+                    TaskConfigDiscriminants::Generator => {
+                        Some(TaskConfig::Generator(Generator::example_values()))
+                    }
+                    TaskConfigDiscriminants::LibfuzzerCrashReport => Some(
+                        TaskConfig::LibfuzzerCrashReport(LibfuzzerCrashReport::example_values()),
+                    ),
+                    TaskConfigDiscriminants::LibfuzzerMerge => {
+                        Some(TaskConfig::LibfuzzerMerge(LibfuzzerMerge::example_values()))
+                    }
+                    TaskConfigDiscriminants::LibfuzzerRegression => Some(
+                        TaskConfig::LibfuzzerRegression(LibfuzzerRegression::example_values()),
+                    ),
+                    TaskConfigDiscriminants::LibfuzzerTestInput => Some(
+                        TaskConfig::LibfuzzerTestInput(LibfuzzerTestInput::example_values()),
+                    ),
+                    TaskConfigDiscriminants::TestInput => {
+                        Some(TaskConfig::TestInput(TestInput::example_values()))
+                    }
+                    TaskConfigDiscriminants::Radamsa => Some(TaskConfig::Radamsa),
+                },
+            }
+        })
+        .collect();
+
+    let definition = TaskGroup {
+        common: CommonProperties {
+            setup_dir: None,
+            extra_setup_dir: None,
+            extra_dir: None,
+            create_job_dir: false,
+        },
+        tasks,
+    };
+
+    let filename = "template";
+    let mut filepath = format!("./{}.yaml", filename);
+    let mut output_file = Path::new(&filepath);
+    let mut counter = 0;
+    while output_file.exists() {
+        filepath = format!("./{}-{}.yaml", filename, counter);
+        output_file = Path::new(&filepath);
+        counter += 1;
+    }
+
+    std::fs::write(output_file, serde_yaml::to_string(&definition)?)?;
+
+    Ok(output_file.into())
+}
+
+fn ui<B: Backend>(f: &mut Frame<B>, app: &mut App) {
+    let areas = Layout::default()
+        .direction(Direction::Vertical)
+        .constraints([Constraint::Percentage(100)])
+        .split(f.size());
+    // Iterate through all elements in the `items` app and append some debug text to it.
+    let items: Vec<ListItem> = app
+        .items
+        .items
+        .iter()
+        .map(|list_element| {
+            let title = if list_element.is_included {
+                format!("✅ {}", list_element.task_type)
+            } else {
+                list_element.task_type.to_string()
+            };
+            ListItem::new(title).style(Style::default().fg(Color::Black).bg(Color::White))
+        })
+        .collect();
+
+    // Create a List from all list items and highlight the currently selected one
+    let items = List::new(items)
+        .block(
+            Block::default()
+                .borders(Borders::ALL)
+                .title("Select which tasks you want to include in the template. Use ⬆/⬇ to navigate and <space> to select. Press <enter> when you're done."),
+        )
+        .highlight_style(
+            Style::default()
+                .bg(Color::LightGreen)
+                .add_modifier(Modifier::BOLD),
+        )
+        .highlight_symbol(">> ");
+
+    // We can now render the item list
+    f.render_stateful_widget(items, areas[0], &mut app.items.state);
+}
+
+struct ListElement<'a> {
+    pub task_type: &'a str,
+    pub is_included: bool,
+}
+
+pub trait Toggle {
+    fn toggle(&mut self) {}
+}
+
+impl<'a> Toggle for ListElement<'a> {
+    fn toggle(&mut self) {
+        self.is_included = !self.is_included
+    }
+}
+
+struct App<'a> {
+    items: StatefulList<ListElement<'a>>,
+}
+
+impl<'a> App<'a> {
+    fn new() -> App<'a> {
+        App {
+            items: StatefulList::with_items(
+                TaskConfig::VARIANTS
+                    .iter()
+                    .map(|name| ListElement {
+                        task_type: name,
+                        is_included: false,
+                    })
+                    .collect(),
+            ),
+        }
+    }
+}
+
+struct StatefulList<ListElement> {
+    state: ListState,
+    items: Vec<ListElement>,
+}
+
+impl<T: Toggle> StatefulList<T> {
+    fn with_items(items: Vec<T>) -> StatefulList<T> {
+        StatefulList {
+            state: ListState::default(),
+            items,
+        }
+    }
+
+    fn next(&mut self) {
+        let i = match self.state.selected() {
+            Some(i) => {
+                if self.items.first().is_some() {
+                    (i + 1) % self.items.len()
+                } else {
+                    0
+                }
+            }
+            None => 0,
+        };
+        self.state.select(Some(i));
+    }
+
+    fn previous(&mut self) {
+        let i = match self.state.selected() {
+            Some(i) => {
+                if i == 0 {
+                    self.items.len() - 1
+                } else {
+                    i - 1
+                }
+            }
+            None => 0,
+        };
+        self.state.select(Some(i));
+    }
+
+    fn toggle(&mut self) {
+        if let Some(index) = self.state.selected() {
+            if let Some(element) = self.items.get_mut(index) {
+                element.toggle()
+            }
+        }
+    }
+}

src/agent/onefuzz-task/src/local/generic_analysis.rs

@@ -27,7 +27,23 @@ pub struct Analysis {
 }
 
 #[async_trait]
-impl Template for Analysis {
+impl Template<Analysis> for Analysis {
+    fn example_values() -> Analysis {
+        Analysis {
+            analyzer_exe: String::new(),
+            analyzer_options: vec![],
+            analyzer_env: HashMap::new(),
+            target_exe: PathBuf::from("path_to_your_exe"),
+            target_options: vec![],
+            input_queue: Some(PathBuf::from("path_to_your_inputs")),
+            crashes: Some(PathBuf::from("path_where_crashes_written")),
+            analysis: PathBuf::new(),
+            tools: None,
+            reports: Some(PathBuf::from("path_where_reports_written")),
+            unique_reports: Some(PathBuf::from("path_where_reports_written")),
+            no_repro: Some(PathBuf::from("path_where_no_repro_reports_written")),
+        }
+    }
     async fn run(&self, context: &RunContext) -> Result<()> {
         let input_q = if let Some(w) = &self.input_queue {
             Some(context.monitor_dir(w).await?)