Trivia/eastereggs#212 (#266)

* add ninja arts #212

* add takoyakiday eggs #212

* add christmas eggs #212

* add happy newyear eggs #212

* changed encode from UTF-8 BOM to UTF-8

* add output easteregg #212

- changed analysis datetime from Utc to Local
- added output easteregg #213

* changed happynewyear arts #212

* fix ninja day #212

* fix christmas #212

src/main.rs

@@ -1,7 +1,8 @@
 extern crate serde;
 extern crate serde_derive;
 
-use chrono::{DateTime, Utc};
+use chrono::Datelike;
+use chrono::{DateTime, Local};
 use evtx::{EvtxParser, ParserSettings};
 use hayabusa::detections::detection;
 use hayabusa::detections::detection::EvtxRecordInfo;
@@ -12,6 +13,7 @@ use hayabusa::{detections::configs, timeline::timeline::Timeline};
 use hhmmss::Hhmmss;
 use pbr::ProgressBar;
 use serde_json::Value;
+use std::collections::HashMap;
 use std::{
     fs::{self, File},
     path::PathBuf,
@@ -22,9 +24,15 @@ use std::{
 const MAX_DETECT_RECORDS: usize = 40000;
 
 fn main() {
+    let analysis_start_time: DateTime<Local> = Local::now();
     if !configs::CONFIG.read().unwrap().args.is_present("q") {
         output_logo();
         println!("");
+        output_eggs(&format!(
+            "{:02}/{:02}",
+            &analysis_start_time.month().to_owned(),
+            &analysis_start_time.day().to_owned()
+        ));
     }
     if configs::CONFIG.read().unwrap().args.args.len() == 0 {
         println!(
@@ -33,7 +41,6 @@ fn main() {
         );
         return;
     }
-    let analysis_start_time: DateTime<Utc> = Utc::now();
     if let Some(filepath) = configs::CONFIG.read().unwrap().args.value_of("filepath") {
         if !filepath.ends_with(".evtx") {
             AlertMessage::alert(
@@ -64,7 +71,7 @@ fn main() {
         print_contributors();
         return;
     }
-    let analysis_end_time: DateTime<Utc> = Utc::now();
+    let analysis_end_time: DateTime<Local> = Local::now();
     let analysis_duration = analysis_end_time.signed_duration_since(analysis_start_time);
     println!("Elapsed Time: {}", &analysis_duration.hhmmssxxx());
     println!("");
@@ -237,12 +244,30 @@ fn _output_with_omikuji(omikuji: Omikuji) {
     println!("{}", content);
 }
 
+/// output logo
 fn output_logo() {
     let fp = &format!("art/logo.txt");
-    let content = fs::read_to_string(fp).unwrap();
+    let content = fs::read_to_string(fp).unwrap_or("".to_owned());
     println!("{}", content);
 }
 
+/// output easter egg arts
+fn output_eggs(exec_datestr: &str) {
+    let mut eggs: HashMap<&str, &str> = HashMap::new();
+    eggs.insert("01/01", "art/happynewyear.txt");
+    eggs.insert("02/22", "art/ninja.txt");
+    eggs.insert("08/08", "art/takoyaki.txt");
+    eggs.insert("12/25", "art/christmas.txt");
+
+    match eggs.get(exec_datestr) {
+        None => {}
+        Some(path) => {
+            let content = fs::read_to_string(path).unwrap_or("".to_owned());
+            println!("{}", content);
+        }
+    }
+}
+
 #[cfg(test)]
 mod tests {
     use crate::collect_evtxfiles;