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analyzer-d4-log
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add: [sshd] html templating

nifi
Jean-Louis Huynen 2020-02-03 16:00:00 +01:00
parent 3812ce4492
commit b874e6c172
No known key found for this signature in database
GPG Key ID: 64799157F4BD6B93
2 changed files with 158 additions and 6 deletions
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56
load.js Normal file
View File

@ -0,0 +1,56 @@
function imgLoad(image) {
'use strict';
// Create new promise with the Promise() constructor;
// This has as its argument a function with two parameters, resolve and reject
return new Promise(function (resolve, reject) {
// Standard XHR to load an image
var request = new XMLHttpRequest();
var url = 'http://127.0.0.1:4444/data/sshd/'+image+'.svg'
request.open('GET', url);
request.responseType = 'blob';
// When the request loads, check whether it was successful
request.onload = function () {
if (request.status === 200) {
// If successful, resolve the promise by passing back the request response
resolve(request.response);
} else {
// If it fails, reject the promise with a error message
reject(new Error('Image didn\'t load successfully; error code:' + request.statusText));
}
};
request.onerror = function () {
// Also deal with the case when the entire request fails to begin with
// This is probably a network error, so reject the promise with an appropriate message
reject(new Error('There was a network error.'));
};
// Send the request
request.send();
});
}
function loadImage(date, type) {
'use strict';
console.log(date);
console.log(type);
// Get a reference to the body element, and create a new image object
var holder = document.querySelector('#imageholder'),
myImage = new Image();
myImage.crossOrigin = ""; // or "anonymous"
// Call the function with the URL we want to load, but then chain the
// promise then() method on to the end of it. This contains two callbacks
imgLoad(date+'/'+date+':'+type).then(function (response) {
// The first runs when the promise resolves, with the request.reponse specified within the resolve() method.
var imageURL = window.URL.createObjectURL(response);
myImage.src = imageURL;
holder.innerHTML = "";
holder.appendChild(myImage);
// The second runs when the promise is rejected, and logs the Error specified with the reject() method.
}, function (Error) {
console.log(Error);
});
}

108
logparser/sshd.go
View File

@ -2,6 +2,7 @@ package logparser
import ( import (
"fmt" "fmt"
"html/template"
"log" "log"
"math" "math"
"os" "os"
@ -83,7 +84,7 @@ func (s *SshdParser) Parse(logline string) error {
// Check if dates are the same // Check if dates are the same
if oldest != dstr { if oldest != dstr {
// Check who is the oldest // Check who is the oldest
parsedOldest, _ := time.Parse("2006-01-02", oldest) parsedOldest, _ := time.Parse("20060102", oldest)
if parsedTime.Before(parsedOldest) { if parsedTime.Before(parsedOldest) {
r.Do("SET", "oldest", dstr) r.Do("SET", "oldest", dstr)
} }
@ -101,7 +102,7 @@ func (s *SshdParser) Parse(logline string) error {
// Check if dates are the same // Check if dates are the same
if newest != dstr { if newest != dstr {
// Check who is the newest // Check who is the newest
parsedNewest, _ := time.Parse("2006-01-02", newest) parsedNewest, _ := time.Parse("20060102", newest)
if parsedTime.After(parsedNewest) { if parsedTime.After(parsedNewest) {
r.Do("SET", "newest", dstr) r.Do("SET", "newest", dstr)
} }
@ -228,6 +229,95 @@ func (s *SshdParser) Compile() error {
} }
} }
// Write html file for navigating plots
const tpl = `
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>{{.Title}}</title>
<script>
var currentType = "statsusername";
var currentDay = {{.MaxDate}};
</script>
<script src="load.js"></script>
<style>
body {
background: white
}
#imageholder {
background: black;
color: white;
padding: 1em;
position: absolute;
top: 50%;
left: 50%;
margin-right: -50%;
transform: translate(-50%, -40%)
}
span {
float: left;
clear: left;
}
</style>
</head>
<body onload="loadImage({{.Current}}, currentType)">
<span>
<label for="statsday">Statistics for: </label>
<input id="statsday" type="date" value="{{.MaxDate}}" min="{{.MinDate}}" max="{{.MaxDate}}" onchange="currentDay = this.value.replace(/-/g, ''); loadImage(currentDay, currentType)"/>
</span>
<span>
<label for="statstype">Type: </label>
<select selected="statsusername" onchange="currentType = this.value; loadImage(currentDay.replace(/-/g, ''), currentType)">
<option value="statsusername">Usernames</option>
<option value="statssrc">Sources</option>
<option value="statshost">Hosts</option>
</select>
</span>
<span id="imageholder"></span>
</body>
</html>`
// Get oldest / newest entries
var newest string
var oldest string
if newest, err = redis.String(r.Do("GET", "newest")); err == redis.ErrNil {
r.Close()
return err
}
if oldest, err = redis.String(r.Do("GET", "oldest")); err == redis.ErrNil {
r.Close()
return err
}
parsedOldest, _ := time.Parse("20060102", oldest)
parsedNewest, _ := time.Parse("20060102", newest)
parsedOldestStr := parsedOldest.Format("2006-01-02")
parsedNewestStr := parsedNewest.Format("2006-01-02")
check := func(err error) {
if err != nil {
log.Fatal(err)
}
}
t, err := template.New("webpage").Parse(tpl)
check(err)
data := struct {
Title string
Current string
MinDate string
MaxDate string
}{
Title: "sshd failed logins statistics",
MinDate: parsedOldestStr,
MaxDate: parsedNewestStr,
Current: newest,
}
f, err := os.OpenFile("statistics.html", os.O_RDWR|os.O_CREATE, 0666)
defer f.Close()
err = t.Execute(f, data)
check(err)
return nil return nil
} }
@ -286,7 +376,6 @@ func plotStats(s *SshdParser, v string) error {
p.NominalY(keys...) p.NominalY(keys...)
// Create folder to store plots // Create folder to store plots
if _, err := os.Stat("data"); os.IsNotExist(err) { if _, err := os.Stat("data"); os.IsNotExist(err) {
err := os.Mkdir("data", 0700) err := os.Mkdir("data", 0700)
if err != nil { if err != nil {
@ -294,15 +383,22 @@ func plotStats(s *SshdParser, v string) error {
} }
} }
if _, err := os.Stat(filepath.Join("data", stype[0])); os.IsNotExist(err) { if _, err := os.Stat(filepath.Join("data", "sshd")); os.IsNotExist(err) {
err := os.Mkdir(filepath.Join("data", stype[0]), 0700) err := os.Mkdir(filepath.Join("data", "sshd"), 0700)
if err != nil {
return err
}
}
if _, err := os.Stat(filepath.Join("data", "sshd", stype[0])); os.IsNotExist(err) {
err := os.Mkdir(filepath.Join("data", "sshd", stype[0]), 0700)
if err != nil { if err != nil {
return err return err
} }
} }
xsize := 3 + vg.Length(math.Round(float64(len(keys)/2))) xsize := 3 + vg.Length(math.Round(float64(len(keys)/2)))
if err := p.Save(15*vg.Centimeter, xsize*vg.Centimeter, filepath.Join("data", stype[0], fmt.Sprintf("%v.svg", v))); err != nil { if err := p.Save(15*vg.Centimeter, xsize*vg.Centimeter, filepath.Join("data", "sshd", stype[0], fmt.Sprintf("%v.svg", v))); err != nil {
return err return err
} }