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Support JavaScript crash triaging for Jazzer.js and jsfuzz via casr-l…
…ibfuzzer (#176)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
|
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@@ -4,3 +4,6 @@ Cargo.lock | |
| */Cargo.lock | ||
| */tests/tmp_tests_casr | ||
| *.swp | ||
| node_modules | ||
| */node_modules/* | ||
| .vscode | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,170 @@ | ||
| use casr::util; | ||
| use libcasr::{ | ||
| exception::Exception, init_ignored_frames, js::*, report::CrashReport, stacktrace::*, | ||
| }; | ||
|
|
||
| use anyhow::{bail, Result}; | ||
| use clap::{Arg, ArgAction, ArgGroup}; | ||
| use regex::Regex; | ||
| use std::path::{Path, PathBuf}; | ||
| use std::process::Command; | ||
|
|
||
| fn main() -> Result<()> { | ||
| let matches = clap::Command::new("casr-js") | ||
| .version(clap::crate_version!()) | ||
| .about("Create CASR reports (.casrep) from JavaScript crash reports") | ||
| .term_width(90) | ||
| .arg( | ||
| Arg::new("output") | ||
| .short('o') | ||
| .long("output") | ||
| .action(ArgAction::Set) | ||
| .value_parser(clap::value_parser!(PathBuf)) | ||
| .value_name("REPORT") | ||
| .help( | ||
| "Path to save report. Path can be a directory, then report name is generated", | ||
| ), | ||
| ) | ||
| .arg( | ||
| Arg::new("stdout") | ||
| .action(ArgAction::SetTrue) | ||
| .long("stdout") | ||
| .help("Print CASR report to stdout"), | ||
| ) | ||
| .group( | ||
| ArgGroup::new("out") | ||
| .args(["stdout", "output"]) | ||
| .required(true), | ||
| ) | ||
| .arg( | ||
| Arg::new("stdin") | ||
| .long("stdin") | ||
| .action(ArgAction::Set) | ||
| .value_parser(clap::value_parser!(PathBuf)) | ||
| .value_name("FILE") | ||
| .help("Stdin file for program"), | ||
| ) | ||
| .arg( | ||
| Arg::new("timeout") | ||
| .short('t') | ||
| .long("timeout") | ||
| .action(ArgAction::Set) | ||
| .default_value("0") | ||
| .value_name("SECONDS") | ||
| .help("Timeout (in seconds) for target execution, 0 value means that timeout is disabled") | ||
| .value_parser(clap::value_parser!(u64).range(0..)) | ||
| ) | ||
| .arg( | ||
| Arg::new("ignore") | ||
| .long("ignore") | ||
| .action(ArgAction::Set) | ||
| .value_parser(clap::value_parser!(PathBuf)) | ||
| .value_name("FILE") | ||
| .help("File with regular expressions for functions and file paths that should be ignored"), | ||
| ) | ||
| .arg( | ||
| Arg::new("ARGS") | ||
| .action(ArgAction::Set) | ||
| .num_args(1..) | ||
| .last(true) | ||
| .help("Add \"-- <path> <arguments>\" to run"), | ||
| ) | ||
| .get_matches(); | ||
|
|
||
| init_ignored_frames!("js", "cpp"); | ||
| if let Some(path) = matches.get_one::<PathBuf>("ignore") { | ||
| util::add_custom_ignored_frames(path)?; | ||
| } | ||
| // Get program args. | ||
| let argv: Vec<&str> = if let Some(argvs) = matches.get_many::<String>("ARGS") { | ||
| argvs.map(|s| s.as_str()).collect() | ||
| } else { | ||
| bail!("Wrong arguments for starting program"); | ||
| }; | ||
|
|
||
| // Get stdin for target program. | ||
| let stdin_file = util::stdin_from_matches(&matches)?; | ||
|
|
||
| // Get timeout | ||
| let timeout = *matches.get_one::<u64>("timeout").unwrap(); | ||
|
|
||
| // Run program. | ||
| let mut js_cmd = Command::new(argv[0]); | ||
| if let Some(ref file) = stdin_file { | ||
| js_cmd.stdin(std::fs::File::open(file)?); | ||
| } | ||
| if argv.len() > 1 { | ||
| js_cmd.args(&argv[1..]); | ||
| } | ||
| let js_result = util::get_output(&mut js_cmd, timeout, true)?; | ||
|
|
||
| let js_stderr = String::from_utf8_lossy(&js_result.stderr); | ||
|
|
||
| // Create report. | ||
| let mut report = CrashReport::new(); | ||
| // Set executable path. | ||
| report.executable_path = argv[0].to_string(); | ||
| let mut path_to_tool = PathBuf::new(); | ||
| path_to_tool.push(argv[0]); | ||
| if argv.len() > 1 { | ||
| let fpath = Path::new(argv[0]); | ||
| if let Some(fname) = fpath.file_name() { | ||
| path_to_tool = if fname == fpath.as_os_str() { | ||
| let Ok(full_path_to_tool) = which::which(fname) else { | ||
| bail!("{} is not found in PATH", argv[0]); | ||
| }; | ||
| full_path_to_tool | ||
| } else { | ||
| fpath.to_path_buf() | ||
| }; | ||
| if !path_to_tool.exists() { | ||
| bail!("Could not find the tool in the specified path {}", argv[0]); | ||
| } | ||
| let fname = fname.to_string_lossy(); | ||
| if (fname == "node" || fname == "jsfuzz") && argv[1].ends_with(".js") { | ||
| report.executable_path = argv[1].to_string(); | ||
| } else if argv.len() > 2 | ||
| && fname == "npx" | ||
| && argv[1] == "jazzer" | ||
| && argv[2].ends_with(".js") | ||
| { | ||
| report.executable_path = argv[2].to_string(); | ||
| } | ||
| } | ||
| } | ||
| report.proc_cmdline = argv.join(" "); | ||
| let _ = report.add_os_info(); | ||
| let _ = report.add_proc_environ(); | ||
|
|
||
| // Get JS report. | ||
| let js_stderr_list: Vec<String> = js_stderr.split('\n').map(|l| l.to_string()).collect(); | ||
| let re = Regex::new(r"^(?:.*Error:(?:\s+.*)?|Thrown at:)$").unwrap(); | ||
| if let Some(start) = js_stderr_list.iter().position(|x| re.is_match(x)) { | ||
| report.js_report = js_stderr_list[start..].to_vec(); | ||
| report | ||
| .js_report | ||
| .retain(|x| !x.is_empty() && (x.trim().starts_with("at") || x.contains("Error:"))); | ||
| let report_str = report.js_report.join("\n"); | ||
| report.stacktrace = JsStacktrace::extract_stacktrace(&report_str)?; | ||
| if let Some(exception) = JsException::parse_exception(&report.js_report[0]) { | ||
| report.execution_class = exception; | ||
| } | ||
| } else { | ||
| // Call casr-san with absolute path to interpreter/fuzzer | ||
| let mut modified_argv = argv.clone(); | ||
| modified_argv[0] = path_to_tool.to_str().unwrap_or(argv[0]); | ||
| return util::call_casr_san(&matches, &modified_argv, "casr-js"); | ||
| } | ||
|
|
||
| if let Ok(crash_line) = JsStacktrace::parse_stacktrace(&report.stacktrace)?.crash_line() { | ||
| report.crashline = crash_line.to_string(); | ||
| if let CrashLine::Source(debug) = crash_line { | ||
| if let Some(sources) = CrashReport::sources(&debug) { | ||
| report.source = sources; | ||
| } | ||
| } | ||
| } | ||
|
|
||
| //Output report | ||
| util::output_report(&report, &matches, &argv) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,12 @@ | ||
| { | ||
| "targets": [ | ||
| { | ||
| "cflags": [ "-fexceptions -fsanitize=address,fuzzer-no-link -O0 -g -fPIC" ], | ||
| "cflags_cc": [ "-fexceptions -fsanitize=address,fuzzer-no-link -O0 -g -fPIC" ], | ||
| "include_dirs" : ["<!@(node -p \"require('node-addon-api').include\")"], | ||
| "target_name": "native", | ||
| "sources": [ "native.cpp" ], | ||
| 'defines': [ 'NAPI_CPP_EXCEPTIONS' ] | ||
| } | ||
| ] | ||
| } |
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